| #pragma once |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| |
| #include <cpuinfo.h> |
| #include <cpuinfo/common.h> |
| #include <arm/midr.h> |
| #include <arm/api.h> |
| #include <linux/api.h> |
| |
| /* No hard limit in the kernel, maximum length observed on non-rogue kernels is 64 */ |
| #define CPUINFO_HARDWARE_VALUE_MAX 64 |
| |
| #ifdef __ANDROID__ |
| /* As per include/sys/system_properties.h in Android NDK */ |
| #define CPUINFO_BUILD_PROP_NAME_MAX 32 |
| #define CPUINFO_BUILD_PROP_VALUE_MAX 92 |
| |
| struct cpuinfo_android_properties { |
| char proc_cpuinfo_hardware[CPUINFO_HARDWARE_VALUE_MAX]; |
| char ro_product_board[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| char ro_board_platform[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| char ro_mediatek_platform[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| char ro_arch[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| char ro_chipname[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| char ro_hardware_chipname[CPUINFO_BUILD_PROP_VALUE_MAX]; |
| }; |
| #endif |
| |
| #define CPUINFO_ARM_LINUX_ARCH_T UINT32_C(0x00000001) |
| #define CPUINFO_ARM_LINUX_ARCH_E UINT32_C(0x00000002) |
| #define CPUINFO_ARM_LINUX_ARCH_J UINT32_C(0x00000004) |
| |
| #define CPUINFO_ARM_LINUX_ARCH_TE UINT32_C(0x00000003) |
| #define CPUINFO_ARM_LINUX_ARCH_TEJ UINT32_C(0x00000007) |
| |
| struct cpuinfo_arm_linux_proc_cpuinfo_cache { |
| uint32_t i_size; |
| uint32_t i_assoc; |
| uint32_t i_line_length; |
| uint32_t i_sets; |
| uint32_t d_size; |
| uint32_t d_assoc; |
| uint32_t d_line_length; |
| uint32_t d_sets; |
| }; |
| |
| #if CPUINFO_ARCH_ARM |
| /* arch/arm/include/uapi/asm/hwcap.h */ |
| |
| #define CPUINFO_ARM_LINUX_FEATURE_SWP UINT32_C(0x00000001) |
| #define CPUINFO_ARM_LINUX_FEATURE_HALF UINT32_C(0x00000002) |
| #define CPUINFO_ARM_LINUX_FEATURE_THUMB UINT32_C(0x00000004) |
| #define CPUINFO_ARM_LINUX_FEATURE_26BIT UINT32_C(0x00000008) |
| #define CPUINFO_ARM_LINUX_FEATURE_FASTMULT UINT32_C(0x00000010) |
| #define CPUINFO_ARM_LINUX_FEATURE_FPA UINT32_C(0x00000020) |
| #define CPUINFO_ARM_LINUX_FEATURE_VFP UINT32_C(0x00000040) |
| #define CPUINFO_ARM_LINUX_FEATURE_EDSP UINT32_C(0x00000080) |
| #define CPUINFO_ARM_LINUX_FEATURE_JAVA UINT32_C(0x00000100) |
| #define CPUINFO_ARM_LINUX_FEATURE_IWMMXT UINT32_C(0x00000200) |
| #define CPUINFO_ARM_LINUX_FEATURE_CRUNCH UINT32_C(0x00000400) |
| #define CPUINFO_ARM_LINUX_FEATURE_THUMBEE UINT32_C(0x00000800) |
| #define CPUINFO_ARM_LINUX_FEATURE_NEON UINT32_C(0x00001000) |
| #define CPUINFO_ARM_LINUX_FEATURE_VFPV3 UINT32_C(0x00002000) |
| #define CPUINFO_ARM_LINUX_FEATURE_VFPV3D16 UINT32_C(0x00004000) /* Also set for VFPv4 with 16 double-precision registers */ |
| #define CPUINFO_ARM_LINUX_FEATURE_TLS UINT32_C(0x00008000) |
| #define CPUINFO_ARM_LINUX_FEATURE_VFPV4 UINT32_C(0x00010000) |
| #define CPUINFO_ARM_LINUX_FEATURE_IDIVA UINT32_C(0x00020000) |
| #define CPUINFO_ARM_LINUX_FEATURE_IDIVT UINT32_C(0x00040000) |
| #define CPUINFO_ARM_LINUX_FEATURE_IDIV UINT32_C(0x00060000) |
| #define CPUINFO_ARM_LINUX_FEATURE_VFPD32 UINT32_C(0x00080000) |
| #define CPUINFO_ARM_LINUX_FEATURE_LPAE UINT32_C(0x00100000) |
| #define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00200000) |
| |
| #define CPUINFO_ARM_LINUX_FEATURE2_AES UINT32_C(0x00000001) |
| #define CPUINFO_ARM_LINUX_FEATURE2_PMULL UINT32_C(0x00000002) |
| #define CPUINFO_ARM_LINUX_FEATURE2_SHA1 UINT32_C(0x00000004) |
| #define CPUINFO_ARM_LINUX_FEATURE2_SHA2 UINT32_C(0x00000008) |
| #define CPUINFO_ARM_LINUX_FEATURE2_CRC32 UINT32_C(0x00000010) |
| #elif CPUINFO_ARCH_ARM64 |
| /* arch/arm64/include/uapi/asm/hwcap.h */ |
| #define CPUINFO_ARM_LINUX_FEATURE_FP UINT32_C(0x00000001) |
| #define CPUINFO_ARM_LINUX_FEATURE_ASIMD UINT32_C(0x00000002) |
| #define CPUINFO_ARM_LINUX_FEATURE_EVTSTRM UINT32_C(0x00000004) |
| #define CPUINFO_ARM_LINUX_FEATURE_AES UINT32_C(0x00000008) |
| #define CPUINFO_ARM_LINUX_FEATURE_PMULL UINT32_C(0x00000010) |
| #define CPUINFO_ARM_LINUX_FEATURE_SHA1 UINT32_C(0x00000020) |
| #define CPUINFO_ARM_LINUX_FEATURE_SHA2 UINT32_C(0x00000040) |
| #define CPUINFO_ARM_LINUX_FEATURE_CRC32 UINT32_C(0x00000080) |
| #define CPUINFO_ARM_LINUX_FEATURE_ATOMICS UINT32_C(0x00000100) |
| #define CPUINFO_ARM_LINUX_FEATURE_FPHP UINT32_C(0x00000200) |
| #define CPUINFO_ARM_LINUX_FEATURE_ASIMDHP UINT32_C(0x00000400) |
| #define CPUINFO_ARM_LINUX_FEATURE_CPUID UINT32_C(0x00000800) |
| #define CPUINFO_ARM_LINUX_FEATURE_ASIMDRDM UINT32_C(0x00001000) |
| #define CPUINFO_ARM_LINUX_FEATURE_JSCVT UINT32_C(0x00002000) |
| #define CPUINFO_ARM_LINUX_FEATURE_FCMA UINT32_C(0x00004000) |
| #define CPUINFO_ARM_LINUX_FEATURE_LRCPC UINT32_C(0x00008000) |
| #define CPUINFO_ARM_LINUX_FEATURE_DCPOP UINT32_C(0x00010000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SHA3 UINT32_C(0x00020000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SM3 UINT32_C(0x00040000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SM4 UINT32_C(0x00080000) |
| #define CPUINFO_ARM_LINUX_FEATURE_ASIMDDP UINT32_C(0x00100000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SHA512 UINT32_C(0x00200000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SVE UINT32_C(0x00400000) |
| #define CPUINFO_ARM_LINUX_FEATURE_ASIMDFHM UINT32_C(0x00800000) |
| #define CPUINFO_ARM_LINUX_FEATURE_DIT UINT32_C(0x01000000) |
| #define CPUINFO_ARM_LINUX_FEATURE_USCAT UINT32_C(0x02000000) |
| #define CPUINFO_ARM_LINUX_FEATURE_ILRCPC UINT32_C(0x04000000) |
| #define CPUINFO_ARM_LINUX_FEATURE_FLAGM UINT32_C(0x08000000) |
| #define CPUINFO_ARM_LINUX_FEATURE_SSBS UINT32_C(0x10000000) |
| #endif |
| |
| #define CPUINFO_ARM_LINUX_VALID_ARCHITECTURE UINT32_C(0x00010000) |
| #define CPUINFO_ARM_LINUX_VALID_IMPLEMENTER UINT32_C(0x00020000) |
| #define CPUINFO_ARM_LINUX_VALID_VARIANT UINT32_C(0x00040000) |
| #define CPUINFO_ARM_LINUX_VALID_PART UINT32_C(0x00080000) |
| #define CPUINFO_ARM_LINUX_VALID_REVISION UINT32_C(0x00100000) |
| #define CPUINFO_ARM_LINUX_VALID_PROCESSOR UINT32_C(0x00200000) |
| #define CPUINFO_ARM_LINUX_VALID_FEATURES UINT32_C(0x00400000) |
| #if CPUINFO_ARCH_ARM |
| #define CPUINFO_ARM_LINUX_VALID_ICACHE_SIZE UINT32_C(0x01000000) |
| #define CPUINFO_ARM_LINUX_VALID_ICACHE_SETS UINT32_C(0x02000000) |
| #define CPUINFO_ARM_LINUX_VALID_ICACHE_WAYS UINT32_C(0x04000000) |
| #define CPUINFO_ARM_LINUX_VALID_ICACHE_LINE UINT32_C(0x08000000) |
| #define CPUINFO_ARM_LINUX_VALID_DCACHE_SIZE UINT32_C(0x10000000) |
| #define CPUINFO_ARM_LINUX_VALID_DCACHE_SETS UINT32_C(0x20000000) |
| #define CPUINFO_ARM_LINUX_VALID_DCACHE_WAYS UINT32_C(0x40000000) |
| #define CPUINFO_ARM_LINUX_VALID_DCACHE_LINE UINT32_C(0x80000000) |
| #endif |
| |
| #define CPUINFO_ARM_LINUX_VALID_INFO UINT32_C(0x007F0000) |
| #define CPUINFO_ARM_LINUX_VALID_MIDR UINT32_C(0x003F0000) |
| #if CPUINFO_ARCH_ARM |
| #define CPUINFO_ARM_LINUX_VALID_ICACHE UINT32_C(0x0F000000) |
| #define CPUINFO_ARM_LINUX_VALID_DCACHE UINT32_C(0xF0000000) |
| #define CPUINFO_ARM_LINUX_VALID_CACHE_LINE UINT32_C(0x88000000) |
| #endif |
| |
| struct cpuinfo_arm_linux_processor { |
| uint32_t architecture_version; |
| #if CPUINFO_ARCH_ARM |
| uint32_t architecture_flags; |
| struct cpuinfo_arm_linux_proc_cpuinfo_cache proc_cpuinfo_cache; |
| #endif |
| uint32_t features; |
| #if CPUINFO_ARCH_ARM |
| uint32_t features2; |
| #endif |
| /** |
| * Main ID Register value. |
| */ |
| uint32_t midr; |
| enum cpuinfo_vendor vendor; |
| enum cpuinfo_uarch uarch; |
| uint32_t uarch_index; |
| /** |
| * ID of the physical package which includes this logical processor. |
| * The value is parsed from /sys/devices/system/cpu/cpu<N>/topology/physical_package_id |
| */ |
| uint32_t package_id; |
| /** |
| * Minimum processor ID on the package which includes this logical processor. |
| * This value can serve as an ID for the cluster of logical processors: it is the |
| * same for all logical processors on the same package. |
| */ |
| uint32_t package_leader_id; |
| /** |
| * Number of logical processors in the package. |
| */ |
| uint32_t package_processor_count; |
| /** |
| * Maximum frequency, in kHZ. |
| * The value is parsed from /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_max_freq |
| * If failed to read or parse the file, the value is 0. |
| */ |
| uint32_t max_frequency; |
| /** |
| * Minimum frequency, in kHZ. |
| * The value is parsed from /sys/devices/system/cpu/cpu<N>/cpufreq/cpuinfo_min_freq |
| * If failed to read or parse the file, the value is 0. |
| */ |
| uint32_t min_frequency; |
| /** Linux processor ID */ |
| uint32_t system_processor_id; |
| uint32_t flags; |
| }; |
| |
| struct cpuinfo_arm_linux_cluster { |
| uint32_t processor_id_min; |
| uint32_t processor_id_max; |
| }; |
| |
| /* Returns true if the two processors do belong to the same cluster */ |
| static inline bool cpuinfo_arm_linux_processor_equals( |
| struct cpuinfo_arm_linux_processor processor_i[restrict static 1], |
| struct cpuinfo_arm_linux_processor processor_j[restrict static 1]) |
| { |
| const uint32_t joint_flags = processor_i->flags & processor_j->flags; |
| |
| bool same_max_frequency = false; |
| if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) { |
| if (processor_i->max_frequency != processor_j->max_frequency) { |
| return false; |
| } else { |
| same_max_frequency = true; |
| } |
| } |
| |
| bool same_min_frequency = false; |
| if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) { |
| if (processor_i->min_frequency != processor_j->min_frequency) { |
| return false; |
| } else { |
| same_min_frequency = true; |
| } |
| } |
| |
| if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) { |
| if (processor_i->midr == processor_j->midr) { |
| if (midr_is_cortex_a53(processor_i->midr)) { |
| return same_min_frequency & same_max_frequency; |
| } else { |
| return true; |
| } |
| } |
| } |
| |
| return same_max_frequency && same_min_frequency; |
| } |
| |
| /* Returns true if the two processors certainly don't belong to the same cluster */ |
| static inline bool cpuinfo_arm_linux_processor_not_equals( |
| struct cpuinfo_arm_linux_processor processor_i[restrict static 1], |
| struct cpuinfo_arm_linux_processor processor_j[restrict static 1]) |
| { |
| const uint32_t joint_flags = processor_i->flags & processor_j->flags; |
| |
| if (joint_flags & CPUINFO_LINUX_FLAG_MAX_FREQUENCY) { |
| if (processor_i->max_frequency != processor_j->max_frequency) { |
| return true; |
| } |
| } |
| |
| if (joint_flags & CPUINFO_LINUX_FLAG_MIN_FREQUENCY) { |
| if (processor_i->min_frequency != processor_j->min_frequency) { |
| return true; |
| } |
| } |
| |
| if ((joint_flags & CPUINFO_ARM_LINUX_VALID_MIDR) == CPUINFO_ARM_LINUX_VALID_MIDR) { |
| if (processor_i->midr != processor_j->midr) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| CPUINFO_INTERNAL bool cpuinfo_arm_linux_parse_proc_cpuinfo( |
| char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], |
| uint32_t max_processors_count, |
| struct cpuinfo_arm_linux_processor processors[restrict static max_processors_count]); |
| |
| #if CPUINFO_ARCH_ARM |
| CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_getauxval( |
| uint32_t hwcap[restrict static 1], |
| uint32_t hwcap2[restrict static 1]); |
| CPUINFO_INTERNAL bool cpuinfo_arm_linux_hwcap_from_procfs( |
| uint32_t hwcap[restrict static 1], |
| uint32_t hwcap2[restrict static 1]); |
| |
| CPUINFO_INTERNAL void cpuinfo_arm_linux_decode_isa_from_proc_cpuinfo( |
| uint32_t features, |
| uint32_t features2, |
| uint32_t midr, |
| uint32_t architecture_version, |
| uint32_t architecture_flags, |
| const struct cpuinfo_arm_chipset chipset[restrict static 1], |
| struct cpuinfo_arm_isa isa[restrict static 1]); |
| #elif CPUINFO_ARCH_ARM64 |
| CPUINFO_INTERNAL uint32_t cpuinfo_arm_linux_hwcap_from_getauxval(void); |
| CPUINFO_INTERNAL void cpuinfo_arm64_linux_decode_isa_from_proc_cpuinfo( |
| uint32_t features, |
| uint32_t midr, |
| const struct cpuinfo_arm_chipset chipset[restrict static 1], |
| struct cpuinfo_arm_isa isa[restrict static 1]); |
| #endif |
| |
| #ifdef __ANDROID__ |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset( |
| const struct cpuinfo_android_properties properties[restrict static 1], |
| uint32_t cores, |
| uint32_t max_cpu_freq_max); |
| #else |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_linux_decode_chipset( |
| const char hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], |
| uint32_t cores, |
| uint32_t max_cpu_freq_max); |
| #endif |
| |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_linux_decode_chipset_from_proc_cpuinfo_hardware( |
| const char proc_cpuinfo_hardware[restrict static CPUINFO_HARDWARE_VALUE_MAX], |
| uint32_t cores, uint32_t max_cpu_freq_max, bool is_tegra); |
| |
| #ifdef __ANDROID__ |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_product_board( |
| const char ro_product_board[restrict static CPUINFO_BUILD_PROP_VALUE_MAX], |
| uint32_t cores, uint32_t max_cpu_freq_max); |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_board_platform( |
| const char ro_board_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX], |
| uint32_t cores, uint32_t max_cpu_freq_max); |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_mediatek_platform( |
| const char ro_mediatek_platform[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_arch( |
| const char ro_arch[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_chipname( |
| const char ro_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); |
| CPUINFO_INTERNAL struct cpuinfo_arm_chipset |
| cpuinfo_arm_android_decode_chipset_from_ro_hardware_chipname( |
| const char ro_hardware_chipname[restrict static CPUINFO_BUILD_PROP_VALUE_MAX]); |
| #endif |
| |
| CPUINFO_INTERNAL bool cpuinfo_arm_linux_detect_core_clusters_by_heuristic( |
| uint32_t usable_processors, |
| uint32_t max_processors, |
| struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); |
| |
| CPUINFO_INTERNAL void cpuinfo_arm_linux_detect_core_clusters_by_sequential_scan( |
| uint32_t max_processors, |
| struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); |
| |
| CPUINFO_INTERNAL void cpuinfo_arm_linux_count_cluster_processors( |
| uint32_t max_processors, |
| struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); |
| |
| CPUINFO_INTERNAL uint32_t cpuinfo_arm_linux_detect_cluster_midr( |
| const struct cpuinfo_arm_chipset chipset[restrict static 1], |
| uint32_t max_processors, |
| uint32_t usable_processors, |
| struct cpuinfo_arm_linux_processor processors[restrict static max_processors]); |
| |
| extern CPUINFO_INTERNAL const uint32_t* cpuinfo_linux_cpu_to_uarch_index_map; |
| extern CPUINFO_INTERNAL uint32_t cpuinfo_linux_cpu_to_uarch_index_map_entries; |
