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android / kernel / msm / refs/heads/android-msm-crosshatch-4.9-q-preview-4 / . / drivers / misc / qseecom.c
blob: 2d829e62619869b71e1ff688a369116a930ebbb3 [file] [log] [blame]
/*
* QTI Secure Execution Environment Communicator (QSEECOM) driver
*
* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) "QSEECOM: %s: " fmt, __func__
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/debugfs.h>
#include <linux/cdev.h>
#include <linux/uaccess.h>
#include <linux/sched.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/io.h>
#include <linux/msm_ion.h>
#include <linux/types.h>
#include <linux/clk.h>
#include <linux/qseecom.h>
#include <linux/elf.h>
#include <linux/firmware.h>
#include <linux/freezer.h>
#include <linux/scatterlist.h>
#include <linux/regulator/consumer.h>
#include <linux/dma-mapping.h>
#include <soc/qcom/subsystem_restart.h>
#include <soc/qcom/scm.h>
#include <soc/qcom/socinfo.h>
#include <linux/msm-bus.h>
#include <linux/msm-bus-board.h>
#include <soc/qcom/qseecomi.h>
#include <asm/cacheflush.h>
#include "qseecom_kernel.h"
#include <crypto/ice.h>
#include <linux/delay.h>
#include <linux/compat.h>
#include "compat_qseecom.h"
#define QSEECOM_DEV "qseecom"
#define QSEOS_VERSION_14 0x14
#define QSEEE_VERSION_00 0x400000
#define QSEE_VERSION_01 0x401000
#define QSEE_VERSION_02 0x402000
#define QSEE_VERSION_03 0x403000
#define QSEE_VERSION_04 0x404000
#define QSEE_VERSION_05 0x405000
#define QSEE_VERSION_20 0x800000
#define QSEE_VERSION_40 0x1000000 /* TZ.BF.4.0 */
#define QSEE_CE_CLK_100MHZ 100000000
#define CE_CLK_DIV 1000000
#define QSEECOM_MAX_SG_ENTRY 512
#define QSEECOM_SG_ENTRY_MSG_BUF_SZ_64BIT \
(QSEECOM_MAX_SG_ENTRY * SG_ENTRY_SZ_64BIT)
#define QSEECOM_INVALID_KEY_ID 0xff
/* Save partition image hash for authentication check */
#define SCM_SAVE_PARTITION_HASH_ID 0x01
/* Check if enterprise security is activate */
#define SCM_IS_ACTIVATED_ID 0x02
/* Encrypt/Decrypt Data Integrity Partition (DIP) for MDTP */
#define SCM_MDTP_CIPHER_DIP 0x01
/* Maximum Allowed Size (128K) of Data Integrity Partition (DIP) for MDTP */
#define MAX_DIP 0x20000
#define RPMB_SERVICE 0x2000
#define SSD_SERVICE 0x3000
#define QSEECOM_SEND_CMD_CRYPTO_TIMEOUT 2000
#define QSEECOM_LOAD_APP_CRYPTO_TIMEOUT 2000
#define TWO 2
#define QSEECOM_UFS_ICE_CE_NUM 10
#define QSEECOM_SDCC_ICE_CE_NUM 20
#define QSEECOM_ICE_FDE_KEY_INDEX 0
#define PHY_ADDR_4G (1ULL<<32)
#define QSEECOM_STATE_NOT_READY 0
#define QSEECOM_STATE_SUSPEND 1
#define QSEECOM_STATE_READY 2
#define QSEECOM_ICE_FDE_KEY_SIZE_MASK 2
/*
* default ce info unit to 0 for
* services which
* support only single instance.
* Most of services are in this category.
*/
#define DEFAULT_CE_INFO_UNIT 0
#define DEFAULT_NUM_CE_INFO_UNIT 1
enum qseecom_clk_definitions {
CLK_DFAB = 0,
CLK_SFPB,
};
enum qseecom_ice_key_size_type {
QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE =
(0 << QSEECOM_ICE_FDE_KEY_SIZE_MASK),
QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE =
(1 << QSEECOM_ICE_FDE_KEY_SIZE_MASK),
QSEE_ICE_FDE_KEY_SIZE_UNDEFINED =
(0xF << QSEECOM_ICE_FDE_KEY_SIZE_MASK),
};
enum qseecom_client_handle_type {
QSEECOM_CLIENT_APP = 1,
QSEECOM_LISTENER_SERVICE,
QSEECOM_SECURE_SERVICE,
QSEECOM_GENERIC,
QSEECOM_UNAVAILABLE_CLIENT_APP,
};
enum qseecom_ce_hw_instance {
CLK_QSEE = 0,
CLK_CE_DRV,
CLK_INVALID,
};
static struct class *driver_class;
static dev_t qseecom_device_no;
static DEFINE_MUTEX(qsee_bw_mutex);
static DEFINE_MUTEX(app_access_lock);
static DEFINE_MUTEX(clk_access_lock);
struct sglist_info {
uint32_t indexAndFlags;
uint32_t sizeOrCount;
};
/*
* The 31th bit indicates only one or multiple physical address inside
* the request buffer. If it is set, the index locates a single physical addr
* inside the request buffer, and `sizeOrCount` is the size of the memory being
* shared at that physical address.
* Otherwise, the index locates an array of {start, len} pairs (a
* "scatter/gather list"), and `sizeOrCount` gives the number of entries in
* that array.
*
* The 30th bit indicates 64 or 32bit address; when it is set, physical addr
* and scatter gather entry sizes are 64-bit values. Otherwise, 32-bit values.
*
* The bits [0:29] of `indexAndFlags` hold an offset into the request buffer.
*/
#define SGLISTINFO_SET_INDEX_FLAG(c, s, i) \
((uint32_t)(((c & 1) << 31) | ((s & 1) << 30) | (i & 0x3fffffff)))
#define SGLISTINFO_TABLE_SIZE (sizeof(struct sglist_info) * MAX_ION_FD)
#define FEATURE_ID_WHITELIST 15 /*whitelist feature id*/
#define MAKE_WHITELIST_VERSION(major, minor, patch) \
(((major & 0x3FF) << 22) | ((minor & 0x3FF) << 12) | (patch & 0xFFF))
struct qseecom_registered_listener_list {
struct list_head list;
struct qseecom_register_listener_req svc;
void *user_virt_sb_base;
u8 *sb_virt;
phys_addr_t sb_phys;
size_t sb_length;
struct ion_handle *ihandle; /* Retrieve phy addr */
wait_queue_head_t rcv_req_wq;
/* rcv_req_flag: -1: not ready; 0: ready and empty; 1: received req */
int rcv_req_flag;
int send_resp_flag;
bool listener_in_use;
/* wq for thread blocked on this listener*/
wait_queue_head_t listener_block_app_wq;
struct sglist_info sglistinfo_ptr[MAX_ION_FD];
uint32_t sglist_cnt;
int abort;
};
struct qseecom_registered_app_list {
struct list_head list;
u32 app_id;
u32 ref_cnt;
char app_name[MAX_APP_NAME_SIZE];
u32 app_arch;
bool app_blocked;
u32 check_block;
u32 blocked_on_listener_id;
};
struct qseecom_registered_kclient_list {
struct list_head list;
struct qseecom_handle *handle;
};
struct qseecom_ce_info_use {
unsigned char handle[MAX_CE_INFO_HANDLE_SIZE];
unsigned int unit_num;
unsigned int num_ce_pipe_entries;
struct qseecom_ce_pipe_entry *ce_pipe_entry;
bool alloc;
uint32_t type;
};
struct ce_hw_usage_info {
uint32_t qsee_ce_hw_instance;
uint32_t num_fde;
struct qseecom_ce_info_use *fde;
uint32_t num_pfe;
struct qseecom_ce_info_use *pfe;
};
struct qseecom_clk {
enum qseecom_ce_hw_instance instance;
struct clk *ce_core_clk;
struct clk *ce_clk;
struct clk *ce_core_src_clk;
struct clk *ce_bus_clk;
uint32_t clk_access_cnt;
};
struct qseecom_control {
struct ion_client *ion_clnt; /* Ion client */
struct list_head registered_listener_list_head;
spinlock_t registered_listener_list_lock;
struct list_head registered_app_list_head;
spinlock_t registered_app_list_lock;
struct list_head registered_kclient_list_head;
spinlock_t registered_kclient_list_lock;
wait_queue_head_t send_resp_wq;
int send_resp_flag;
uint32_t qseos_version;
uint32_t qsee_version;
struct device *pdev;
bool whitelist_support;
bool commonlib_loaded;
bool commonlib64_loaded;
struct ce_hw_usage_info ce_info;
int qsee_bw_count;
int qsee_sfpb_bw_count;
uint32_t qsee_perf_client;
struct qseecom_clk qsee;
struct qseecom_clk ce_drv;
bool support_bus_scaling;
bool support_fde;
bool support_pfe;
bool fde_key_size;
uint32_t cumulative_mode;
enum qseecom_bandwidth_request_mode current_mode;
struct timer_list bw_scale_down_timer;
struct work_struct bw_inactive_req_ws;
struct cdev cdev;
bool timer_running;
bool no_clock_support;
unsigned int ce_opp_freq_hz;
bool appsbl_qseecom_support;
uint32_t qsee_reentrancy_support;
uint32_t app_block_ref_cnt;
wait_queue_head_t app_block_wq;
atomic_t qseecom_state;
int is_apps_region_protected;
bool smcinvoke_support;
};
struct qseecom_sec_buf_fd_info {
bool is_sec_buf_fd;
size_t size;
void *vbase;
dma_addr_t pbase;
};
struct qseecom_param_memref {
uint32_t buffer;
uint32_t size;
};
struct qseecom_client_handle {
u32 app_id;
u8 *sb_virt;
phys_addr_t sb_phys;
unsigned long user_virt_sb_base;
size_t sb_length;
struct ion_handle *ihandle; /* Retrieve phy addr */
char app_name[MAX_APP_NAME_SIZE];
u32 app_arch;
struct qseecom_sec_buf_fd_info sec_buf_fd[MAX_ION_FD];
};
struct qseecom_listener_handle {
u32 id;
};
static struct qseecom_control qseecom;
struct qseecom_dev_handle {
enum qseecom_client_handle_type type;
union {
struct qseecom_client_handle client;
struct qseecom_listener_handle listener;
};
bool released;
int abort;
wait_queue_head_t abort_wq;
atomic_t ioctl_count;
bool perf_enabled;
bool fast_load_enabled;
enum qseecom_bandwidth_request_mode mode;
struct sglist_info sglistinfo_ptr[MAX_ION_FD];
uint32_t sglist_cnt;
bool use_legacy_cmd;
};
struct qseecom_key_id_usage_desc {
uint8_t desc[QSEECOM_KEY_ID_SIZE];
};
struct qseecom_crypto_info {
unsigned int unit_num;
unsigned int ce;
unsigned int pipe_pair;
};
static struct qseecom_key_id_usage_desc key_id_array[] = {
{
.desc = "Undefined Usage Index",
},
{
.desc = "Full Disk Encryption",
},
{
.desc = "Per File Encryption",
},
{
.desc = "UFS ICE Full Disk Encryption",
},
{
.desc = "SDCC ICE Full Disk Encryption",
},
};
/* Function proto types */
static int qsee_vote_for_clock(struct qseecom_dev_handle *, int32_t);
static void qsee_disable_clock_vote(struct qseecom_dev_handle *, int32_t);
static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce);
static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce);
static int __qseecom_init_clk(enum qseecom_ce_hw_instance ce);
static int qseecom_load_commonlib_image(struct qseecom_dev_handle *data,
char *cmnlib_name);
static int qseecom_enable_ice_setup(int usage);
static int qseecom_disable_ice_setup(int usage);
static void __qseecom_reentrancy_check_if_no_app_blocked(uint32_t smc_id);
static int qseecom_get_ce_info(struct qseecom_dev_handle *data,
void __user *argp);
static int qseecom_free_ce_info(struct qseecom_dev_handle *data,
void __user *argp);
static int qseecom_query_ce_info(struct qseecom_dev_handle *data,
void __user *argp);
static int get_qseecom_keymaster_status(char *str)
{
get_option(&str, &qseecom.is_apps_region_protected);
return 1;
}
__setup("androidboot.keymaster=", get_qseecom_keymaster_status);
static int qseecom_scm_call2(uint32_t svc_id, uint32_t tz_cmd_id,
const void *req_buf, void *resp_buf)
{
int ret = 0;
uint32_t smc_id = 0;
uint32_t qseos_cmd_id = 0;
struct scm_desc desc = {0};
struct qseecom_command_scm_resp *scm_resp = NULL;
if (!req_buf || !resp_buf) {
pr_err("Invalid buffer pointer\n");
return -EINVAL;
}
qseos_cmd_id = *(uint32_t *)req_buf;
scm_resp = (struct qseecom_command_scm_resp *)resp_buf;
switch (svc_id) {
case 6: {
if (tz_cmd_id == 3) {
smc_id = TZ_INFO_GET_FEATURE_VERSION_ID;
desc.arginfo = TZ_INFO_GET_FEATURE_VERSION_ID_PARAM_ID;
desc.args[0] = *(uint32_t *)req_buf;
} else {
pr_err("Unsupported svc_id %d, tz_cmd_id %d\n",
svc_id, tz_cmd_id);
return -EINVAL;
}
ret = scm_call2(smc_id, &desc);
break;
}
case SCM_SVC_ES: {
switch (tz_cmd_id) {
case SCM_SAVE_PARTITION_HASH_ID: {
u32 tzbuflen = PAGE_ALIGN(SHA256_DIGEST_LENGTH);
struct qseecom_save_partition_hash_req *p_hash_req =
(struct qseecom_save_partition_hash_req *)
req_buf;
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
memset(tzbuf, 0, tzbuflen);
memcpy(tzbuf, p_hash_req->digest,
SHA256_DIGEST_LENGTH);
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_ES_SAVE_PARTITION_HASH_ID;
desc.arginfo = TZ_ES_SAVE_PARTITION_HASH_ID_PARAM_ID;
desc.args[0] = p_hash_req->partition_id;
desc.args[1] = virt_to_phys(tzbuf);
desc.args[2] = SHA256_DIGEST_LENGTH;
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
default: {
pr_err("tz_cmd_id %d is not supported by scm_call2\n",
tz_cmd_id);
ret = -EINVAL;
break;
}
} /* end of switch (tz_cmd_id) */
break;
} /* end of case SCM_SVC_ES */
case SCM_SVC_TZSCHEDULER: {
switch (qseos_cmd_id) {
case QSEOS_APP_START_COMMAND: {
struct qseecom_load_app_ireq *req;
struct qseecom_load_app_64bit_ireq *req_64bit;
smc_id = TZ_OS_APP_START_ID;
desc.arginfo = TZ_OS_APP_START_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_load_app_ireq *)req_buf;
desc.args[0] = req->mdt_len;
desc.args[1] = req->img_len;
desc.args[2] = req->phy_addr;
} else {
req_64bit =
(struct qseecom_load_app_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->mdt_len;
desc.args[1] = req_64bit->img_len;
desc.args[2] = req_64bit->phy_addr;
}
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_APP_SHUTDOWN_COMMAND: {
struct qseecom_unload_app_ireq *req;
req = (struct qseecom_unload_app_ireq *)req_buf;
smc_id = TZ_OS_APP_SHUTDOWN_ID;
desc.arginfo = TZ_OS_APP_SHUTDOWN_ID_PARAM_ID;
desc.args[0] = req->app_id;
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_APP_LOOKUP_COMMAND: {
struct qseecom_check_app_ireq *req;
u32 tzbuflen = PAGE_ALIGN(sizeof(req->app_name));
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
req = (struct qseecom_check_app_ireq *)req_buf;
pr_debug("Lookup app_name = %s\n", req->app_name);
strlcpy(tzbuf, req->app_name, sizeof(req->app_name));
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_OS_APP_LOOKUP_ID;
desc.arginfo = TZ_OS_APP_LOOKUP_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbuf);
desc.args[1] = strlen(req->app_name);
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
case QSEOS_APP_REGION_NOTIFICATION: {
struct qsee_apps_region_info_ireq *req;
struct qsee_apps_region_info_64bit_ireq *req_64bit;
smc_id = TZ_OS_APP_REGION_NOTIFICATION_ID;
desc.arginfo =
TZ_OS_APP_REGION_NOTIFICATION_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qsee_apps_region_info_ireq *)
req_buf;
desc.args[0] = req->addr;
desc.args[1] = req->size;
} else {
req_64bit =
(struct qsee_apps_region_info_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->addr;
desc.args[1] = req_64bit->size;
}
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_LOAD_SERV_IMAGE_COMMAND: {
struct qseecom_load_lib_image_ireq *req;
struct qseecom_load_lib_image_64bit_ireq *req_64bit;
smc_id = TZ_OS_LOAD_SERVICES_IMAGE_ID;
desc.arginfo = TZ_OS_LOAD_SERVICES_IMAGE_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_load_lib_image_ireq *)
req_buf;
desc.args[0] = req->mdt_len;
desc.args[1] = req->img_len;
desc.args[2] = req->phy_addr;
} else {
req_64bit =
(struct qseecom_load_lib_image_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->mdt_len;
desc.args[1] = req_64bit->img_len;
desc.args[2] = req_64bit->phy_addr;
}
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_UNLOAD_SERV_IMAGE_COMMAND: {
smc_id = TZ_OS_UNLOAD_SERVICES_IMAGE_ID;
desc.arginfo = TZ_OS_UNLOAD_SERVICES_IMAGE_ID_PARAM_ID;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_REGISTER_LISTENER: {
struct qseecom_register_listener_ireq *req;
struct qseecom_register_listener_64bit_ireq *req_64bit;
desc.arginfo =
TZ_OS_REGISTER_LISTENER_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_register_listener_ireq *)
req_buf;
desc.args[0] = req->listener_id;
desc.args[1] = req->sb_ptr;
desc.args[2] = req->sb_len;
} else {
req_64bit =
(struct qseecom_register_listener_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->listener_id;
desc.args[1] = req_64bit->sb_ptr;
desc.args[2] = req_64bit->sb_len;
}
qseecom.smcinvoke_support = true;
smc_id = TZ_OS_REGISTER_LISTENER_SMCINVOKE_ID;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
if (ret) {
qseecom.smcinvoke_support = false;
smc_id = TZ_OS_REGISTER_LISTENER_ID;
__qseecom_reentrancy_check_if_no_app_blocked(
smc_id);
ret = scm_call2(smc_id, &desc);
}
break;
}
case QSEOS_DEREGISTER_LISTENER: {
struct qseecom_unregister_listener_ireq *req;
req = (struct qseecom_unregister_listener_ireq *)
req_buf;
smc_id = TZ_OS_DEREGISTER_LISTENER_ID;
desc.arginfo = TZ_OS_DEREGISTER_LISTENER_ID_PARAM_ID;
desc.args[0] = req->listener_id;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_LISTENER_DATA_RSP_COMMAND: {
struct qseecom_client_listener_data_irsp *req;
req = (struct qseecom_client_listener_data_irsp *)
req_buf;
smc_id = TZ_OS_LISTENER_RESPONSE_HANDLER_ID;
desc.arginfo =
TZ_OS_LISTENER_RESPONSE_HANDLER_ID_PARAM_ID;
desc.args[0] = req->listener_id;
desc.args[1] = req->status;
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST: {
struct qseecom_client_listener_data_irsp *req;
struct qseecom_client_listener_data_64bit_irsp *req_64;
smc_id =
TZ_OS_LISTENER_RESPONSE_HANDLER_WITH_WHITELIST_ID;
desc.arginfo =
TZ_OS_LISTENER_RESPONSE_HANDLER_WITH_WHITELIST_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req =
(struct qseecom_client_listener_data_irsp *)
req_buf;
desc.args[0] = req->listener_id;
desc.args[1] = req->status;
desc.args[2] = req->sglistinfo_ptr;
desc.args[3] = req->sglistinfo_len;
} else {
req_64 =
(struct qseecom_client_listener_data_64bit_irsp *)
req_buf;
desc.args[0] = req_64->listener_id;
desc.args[1] = req_64->status;
desc.args[2] = req_64->sglistinfo_ptr;
desc.args[3] = req_64->sglistinfo_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_LOAD_EXTERNAL_ELF_COMMAND: {
struct qseecom_load_app_ireq *req;
struct qseecom_load_app_64bit_ireq *req_64bit;
smc_id = TZ_OS_LOAD_EXTERNAL_IMAGE_ID;
desc.arginfo = TZ_OS_LOAD_SERVICES_IMAGE_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_load_app_ireq *)req_buf;
desc.args[0] = req->mdt_len;
desc.args[1] = req->img_len;
desc.args[2] = req->phy_addr;
} else {
req_64bit =
(struct qseecom_load_app_64bit_ireq *)req_buf;
desc.args[0] = req_64bit->mdt_len;
desc.args[1] = req_64bit->img_len;
desc.args[2] = req_64bit->phy_addr;
}
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_UNLOAD_EXTERNAL_ELF_COMMAND: {
smc_id = TZ_OS_UNLOAD_EXTERNAL_IMAGE_ID;
desc.arginfo = TZ_OS_UNLOAD_SERVICES_IMAGE_ID_PARAM_ID;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_CLIENT_SEND_DATA_COMMAND: {
struct qseecom_client_send_data_ireq *req;
struct qseecom_client_send_data_64bit_ireq *req_64bit;
smc_id = TZ_APP_QSAPP_SEND_DATA_ID;
desc.arginfo = TZ_APP_QSAPP_SEND_DATA_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_client_send_data_ireq *)
req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->rsp_ptr;
desc.args[4] = req->rsp_len;
} else {
req_64bit =
(struct qseecom_client_send_data_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->rsp_ptr;
desc.args[4] = req_64bit->rsp_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_CLIENT_SEND_DATA_COMMAND_WHITELIST: {
struct qseecom_client_send_data_ireq *req;
struct qseecom_client_send_data_64bit_ireq *req_64bit;
smc_id = TZ_APP_QSAPP_SEND_DATA_WITH_WHITELIST_ID;
desc.arginfo =
TZ_APP_QSAPP_SEND_DATA_WITH_WHITELIST_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_client_send_data_ireq *)
req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->rsp_ptr;
desc.args[4] = req->rsp_len;
desc.args[5] = req->sglistinfo_ptr;
desc.args[6] = req->sglistinfo_len;
} else {
req_64bit =
(struct qseecom_client_send_data_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->rsp_ptr;
desc.args[4] = req_64bit->rsp_len;
desc.args[5] = req_64bit->sglistinfo_ptr;
desc.args[6] = req_64bit->sglistinfo_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_RPMB_PROVISION_KEY_COMMAND: {
struct qseecom_client_send_service_ireq *req;
req = (struct qseecom_client_send_service_ireq *)
req_buf;
smc_id = TZ_OS_RPMB_PROVISION_KEY_ID;
desc.arginfo = TZ_OS_RPMB_PROVISION_KEY_ID_PARAM_ID;
desc.args[0] = req->key_type;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_RPMB_ERASE_COMMAND: {
smc_id = TZ_OS_RPMB_ERASE_ID;
desc.arginfo = TZ_OS_RPMB_ERASE_ID_PARAM_ID;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND: {
smc_id = TZ_OS_RPMB_CHECK_PROV_STATUS_ID;
desc.arginfo = TZ_OS_RPMB_CHECK_PROV_STATUS_ID_PARAM_ID;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_GENERATE_KEY: {
u32 tzbuflen = PAGE_ALIGN(sizeof
(struct qseecom_key_generate_ireq) -
sizeof(uint32_t));
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
memset(tzbuf, 0, tzbuflen);
memcpy(tzbuf, req_buf + sizeof(uint32_t),
(sizeof(struct qseecom_key_generate_ireq) -
sizeof(uint32_t)));
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_OS_KS_GEN_KEY_ID;
desc.arginfo = TZ_OS_KS_GEN_KEY_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbuf);
desc.args[1] = tzbuflen;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
case QSEOS_DELETE_KEY: {
u32 tzbuflen = PAGE_ALIGN(sizeof
(struct qseecom_key_delete_ireq) -
sizeof(uint32_t));
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
memset(tzbuf, 0, tzbuflen);
memcpy(tzbuf, req_buf + sizeof(uint32_t),
(sizeof(struct qseecom_key_delete_ireq) -
sizeof(uint32_t)));
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_OS_KS_DEL_KEY_ID;
desc.arginfo = TZ_OS_KS_DEL_KEY_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbuf);
desc.args[1] = tzbuflen;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
case QSEOS_SET_KEY: {
u32 tzbuflen = PAGE_ALIGN(sizeof
(struct qseecom_key_select_ireq) -
sizeof(uint32_t));
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
memset(tzbuf, 0, tzbuflen);
memcpy(tzbuf, req_buf + sizeof(uint32_t),
(sizeof(struct qseecom_key_select_ireq) -
sizeof(uint32_t)));
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_OS_KS_SET_PIPE_KEY_ID;
desc.arginfo = TZ_OS_KS_SET_PIPE_KEY_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbuf);
desc.args[1] = tzbuflen;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
case QSEOS_UPDATE_KEY_USERINFO: {
u32 tzbuflen = PAGE_ALIGN(sizeof
(struct qseecom_key_userinfo_update_ireq) -
sizeof(uint32_t));
char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL);
if (!tzbuf)
return -ENOMEM;
memset(tzbuf, 0, tzbuflen);
memcpy(tzbuf, req_buf + sizeof(uint32_t), (sizeof
(struct qseecom_key_userinfo_update_ireq) -
sizeof(uint32_t)));
dmac_flush_range(tzbuf, tzbuf + tzbuflen);
smc_id = TZ_OS_KS_UPDATE_KEY_ID;
desc.arginfo = TZ_OS_KS_UPDATE_KEY_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbuf);
desc.args[1] = tzbuflen;
__qseecom_reentrancy_check_if_no_app_blocked(smc_id);
ret = scm_call2(smc_id, &desc);
kzfree(tzbuf);
break;
}
case QSEOS_TEE_OPEN_SESSION: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_OPEN_SESSION_ID;
desc.arginfo = TZ_APP_GPAPP_OPEN_SESSION_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_TEE_OPEN_SESSION_WHITELIST: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_OPEN_SESSION_WITH_WHITELIST_ID;
desc.arginfo =
TZ_APP_GPAPP_OPEN_SESSION_WITH_WHITELIST_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
desc.args[5] = req->sglistinfo_ptr;
desc.args[6] = req->sglistinfo_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
desc.args[5] = req_64bit->sglistinfo_ptr;
desc.args[6] = req_64bit->sglistinfo_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_TEE_INVOKE_COMMAND: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_INVOKE_COMMAND_ID;
desc.arginfo = TZ_APP_GPAPP_INVOKE_COMMAND_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_TEE_INVOKE_COMMAND_WHITELIST: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_INVOKE_COMMAND_WITH_WHITELIST_ID;
desc.arginfo =
TZ_APP_GPAPP_INVOKE_COMMAND_WITH_WHITELIST_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
desc.args[5] = req->sglistinfo_ptr;
desc.args[6] = req->sglistinfo_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
desc.args[5] = req_64bit->sglistinfo_ptr;
desc.args[6] = req_64bit->sglistinfo_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_TEE_CLOSE_SESSION: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_CLOSE_SESSION_ID;
desc.arginfo = TZ_APP_GPAPP_CLOSE_SESSION_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_TEE_REQUEST_CANCELLATION: {
struct qseecom_qteec_ireq *req;
struct qseecom_qteec_64bit_ireq *req_64bit;
smc_id = TZ_APP_GPAPP_REQUEST_CANCELLATION_ID;
desc.arginfo =
TZ_APP_GPAPP_REQUEST_CANCELLATION_ID_PARAM_ID;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req = (struct qseecom_qteec_ireq *)req_buf;
desc.args[0] = req->app_id;
desc.args[1] = req->req_ptr;
desc.args[2] = req->req_len;
desc.args[3] = req->resp_ptr;
desc.args[4] = req->resp_len;
} else {
req_64bit = (struct qseecom_qteec_64bit_ireq *)
req_buf;
desc.args[0] = req_64bit->app_id;
desc.args[1] = req_64bit->req_ptr;
desc.args[2] = req_64bit->req_len;
desc.args[3] = req_64bit->resp_ptr;
desc.args[4] = req_64bit->resp_len;
}
ret = scm_call2(smc_id, &desc);
break;
}
case QSEOS_CONTINUE_BLOCKED_REQ_COMMAND: {
struct qseecom_continue_blocked_request_ireq *req =
(struct qseecom_continue_blocked_request_ireq *)
req_buf;
if (qseecom.smcinvoke_support)
smc_id =
TZ_OS_CONTINUE_BLOCKED_REQUEST_SMCINVOKE_ID;
else
smc_id = TZ_OS_CONTINUE_BLOCKED_REQUEST_ID;
desc.arginfo =
TZ_OS_CONTINUE_BLOCKED_REQUEST_ID_PARAM_ID;
desc.args[0] = req->app_or_session_id;
ret = scm_call2(smc_id, &desc);
break;
}
default: {
pr_err("qseos_cmd_id %d is not supported by armv8 scm_call2.\n",
qseos_cmd_id);
ret = -EINVAL;
break;
}
} /*end of switch (qsee_cmd_id) */
break;
} /*end of case SCM_SVC_TZSCHEDULER*/
default: {
pr_err("svc_id 0x%x is not supported by armv8 scm_call2.\n",
svc_id);
ret = -EINVAL;
break;
}
} /*end of switch svc_id */
scm_resp->result = desc.ret[0];
scm_resp->resp_type = desc.ret[1];
scm_resp->data = desc.ret[2];
pr_debug("svc_id = 0x%x, tz_cmd_id = 0x%x, qseos_cmd_id = 0x%x, smc_id = 0x%x, param_id = 0x%x\n",
svc_id, tz_cmd_id, qseos_cmd_id, smc_id, desc.arginfo);
pr_debug("scm_resp->result = 0x%x, scm_resp->resp_type = 0x%x, scm_resp->data = 0x%x\n",
scm_resp->result, scm_resp->resp_type, scm_resp->data);
return ret;
}
static int qseecom_scm_call(u32 svc_id, u32 tz_cmd_id, const void *cmd_buf,
size_t cmd_len, void *resp_buf, size_t resp_len)
{
if (!is_scm_armv8())
return scm_call(svc_id, tz_cmd_id, cmd_buf, cmd_len,
resp_buf, resp_len);
else
return qseecom_scm_call2(svc_id, tz_cmd_id, cmd_buf, resp_buf);
}
static int __qseecom_is_svc_unique(struct qseecom_dev_handle *data,
struct qseecom_register_listener_req *svc)
{
struct qseecom_registered_listener_list *ptr;
int unique = 1;
unsigned long flags;
spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags);
list_for_each_entry(ptr, &qseecom.registered_listener_list_head, list) {
if (ptr->svc.listener_id == svc->listener_id) {
pr_err("Service id: %u is already registered\n",
ptr->svc.listener_id);
unique = 0;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags);
return unique;
}
static struct qseecom_registered_listener_list *__qseecom_find_svc(
int32_t listener_id)
{
struct qseecom_registered_listener_list *entry = NULL;
unsigned long flags;
spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_listener_list_head, list) {
if (entry->svc.listener_id == listener_id)
break;
}
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags);
if ((entry != NULL) && (entry->svc.listener_id != listener_id)) {
pr_err("Service id: %u is not found\n", listener_id);
return NULL;
}
return entry;
}
static int __qseecom_set_sb_memory(struct qseecom_registered_listener_list *svc,
struct qseecom_dev_handle *handle,
struct qseecom_register_listener_req *listener)
{
int ret = 0;
struct qseecom_register_listener_ireq req;
struct qseecom_register_listener_64bit_ireq req_64bit;
struct qseecom_command_scm_resp resp;
ion_phys_addr_t pa;
void *cmd_buf = NULL;
size_t cmd_len;
/* Get the handle of the shared fd */
svc->ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
listener->ifd_data_fd);
if (IS_ERR_OR_NULL(svc->ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
return -ENOMEM;
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, svc->ihandle, &pa, &svc->sb_length);
if (ret) {
pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n",
ret);
return ret;
}
/* Populate the structure for sending scm call to load image */
svc->sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, svc->ihandle);
if (IS_ERR_OR_NULL(svc->sb_virt)) {
pr_err("ION memory mapping for listener shared buffer failed\n");
return -ENOMEM;
}
svc->sb_phys = (phys_addr_t)pa;
if (qseecom.qsee_version < QSEE_VERSION_40) {
req.qsee_cmd_id = QSEOS_REGISTER_LISTENER;
req.listener_id = svc->svc.listener_id;
req.sb_len = svc->sb_length;
req.sb_ptr = (uint32_t)svc->sb_phys;
cmd_buf = (void *)&req;
cmd_len = sizeof(struct qseecom_register_listener_ireq);
} else {
req_64bit.qsee_cmd_id = QSEOS_REGISTER_LISTENER;
req_64bit.listener_id = svc->svc.listener_id;
req_64bit.sb_len = svc->sb_length;
req_64bit.sb_ptr = (uint64_t)svc->sb_phys;
cmd_buf = (void *)&req_64bit;
cmd_len = sizeof(struct qseecom_register_listener_64bit_ireq);
}
resp.result = QSEOS_RESULT_INCOMPLETE;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("qseecom_scm_call failed with err: %d\n", ret);
return -EINVAL;
}
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("Error SB registration req: resp.result = %d\n",
resp.result);
return -EPERM;
}
return 0;
}
static int qseecom_register_listener(struct qseecom_dev_handle *data,
void __user *argp)
{
int ret = 0;
unsigned long flags;
struct qseecom_register_listener_req rcvd_lstnr;
struct qseecom_registered_listener_list *new_entry;
ret = copy_from_user(&rcvd_lstnr, argp, sizeof(rcvd_lstnr));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (!access_ok(VERIFY_WRITE, (void __user *)rcvd_lstnr.virt_sb_base,
rcvd_lstnr.sb_size))
return -EFAULT;
data->listener.id = rcvd_lstnr.listener_id;
if (!__qseecom_is_svc_unique(data, &rcvd_lstnr)) {
pr_err("Service %d is not unique and failed to register\n",
rcvd_lstnr.listener_id);
data->released = true;
return -EBUSY;
}
new_entry = kzalloc(sizeof(*new_entry), GFP_KERNEL);
if (!new_entry)
return -ENOMEM;
memcpy(&new_entry->svc, &rcvd_lstnr, sizeof(rcvd_lstnr));
new_entry->rcv_req_flag = -1;
new_entry->svc.listener_id = rcvd_lstnr.listener_id;
new_entry->sb_length = rcvd_lstnr.sb_size;
new_entry->user_virt_sb_base = rcvd_lstnr.virt_sb_base;
if (__qseecom_set_sb_memory(new_entry, data, &rcvd_lstnr)) {
pr_err("qseecom_set_sb_memory failed for listener %d, size %d\n",
rcvd_lstnr.listener_id, rcvd_lstnr.sb_size);
kzfree(new_entry);
return -ENOMEM;
}
init_waitqueue_head(&new_entry->rcv_req_wq);
init_waitqueue_head(&new_entry->listener_block_app_wq);
new_entry->send_resp_flag = 0;
new_entry->listener_in_use = false;
spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags);
list_add_tail(&new_entry->list, &qseecom.registered_listener_list_head);
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags);
pr_warn("Service %d is registered\n", rcvd_lstnr.listener_id);
return ret;
}
static void __qseecom_listener_abort_all(int abort)
{
struct qseecom_registered_listener_list *entry = NULL;
unsigned long flags;
spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_listener_list_head, list) {
pr_debug("set abort %d for listener %d\n",
abort, entry->svc.listener_id);
entry->abort = abort;
}
if (abort)
wake_up_interruptible_all(&qseecom.send_resp_wq);
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags);
}
static int qseecom_unregister_listener(struct qseecom_dev_handle *data)
{
int ret = 0;
struct qseecom_register_listener_ireq req;
struct qseecom_registered_listener_list *ptr_svc = NULL;
struct qseecom_command_scm_resp resp;
struct ion_handle *ihandle = NULL; /* Retrieve phy addr */
ptr_svc = __qseecom_find_svc(data->listener.id);
if (!ptr_svc) {
pr_err("Unregiser invalid listener ID %d\n", data->listener.id);
return -ENODATA;
}
req.qsee_cmd_id = QSEOS_DEREGISTER_LISTENER;
req.listener_id = data->listener.id;
resp.result = QSEOS_RESULT_INCOMPLETE;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req,
sizeof(req), &resp, sizeof(resp));
if (ret) {
pr_err("scm_call() failed with err: %d (lstnr id=%d)\n",
ret, data->listener.id);
goto exit;
}
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("Failed resp.result=%d,(lstnr id=%d)\n",
resp.result, data->listener.id);
ret = -EPERM;
goto exit;
}
data->abort = 1;
ptr_svc->abort = 1;
wake_up_all(&ptr_svc->rcv_req_wq);
while (atomic_read(&data->ioctl_count) > 1) {
if (wait_event_interruptible(data->abort_wq,
atomic_read(&data->ioctl_count) <= 1)) {
pr_err("Interrupted from abort\n");
ret = -ERESTARTSYS;
}
}
exit:
if (ptr_svc->sb_virt) {
ihandle = ptr_svc->ihandle;
if (!IS_ERR_OR_NULL(ihandle)) {
ion_unmap_kernel(qseecom.ion_clnt, ihandle);
ion_free(qseecom.ion_clnt, ihandle);
}
}
list_del(&ptr_svc->list);
kzfree(ptr_svc);
data->released = true;
pr_warn("Service %d is unregistered\n", data->listener.id);
return ret;
}
static int __qseecom_set_msm_bus_request(uint32_t mode)
{
int ret = 0;
struct qseecom_clk *qclk;
qclk = &qseecom.qsee;
if (qclk->ce_core_src_clk != NULL) {
if (mode == INACTIVE) {
__qseecom_disable_clk(CLK_QSEE);
} else {
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
pr_err("CLK enabling failed (%d) MODE (%d)\n",
ret, mode);
}
}
if ((!ret) && (qseecom.current_mode != mode)) {
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, mode);
if (ret) {
pr_err("Bandwidth req failed(%d) MODE (%d)\n",
ret, mode);
if (qclk->ce_core_src_clk != NULL) {
if (mode == INACTIVE) {
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
pr_err("CLK enable failed\n");
} else
__qseecom_disable_clk(CLK_QSEE);
}
}
qseecom.current_mode = mode;
}
return ret;
}
static void qseecom_bw_inactive_req_work(struct work_struct *work)
{
mutex_lock(&app_access_lock);
mutex_lock(&qsee_bw_mutex);
if (qseecom.timer_running)
__qseecom_set_msm_bus_request(INACTIVE);
pr_debug("current_mode = %d, cumulative_mode = %d\n",
qseecom.current_mode, qseecom.cumulative_mode);
qseecom.timer_running = false;
mutex_unlock(&qsee_bw_mutex);
mutex_unlock(&app_access_lock);
}
static void qseecom_scale_bus_bandwidth_timer_callback(unsigned long data)
{
schedule_work(&qseecom.bw_inactive_req_ws);
}
static int __qseecom_decrease_clk_ref_count(enum qseecom_ce_hw_instance ce)
{
struct qseecom_clk *qclk;
int ret = 0;
mutex_lock(&clk_access_lock);
if (ce == CLK_QSEE)
qclk = &qseecom.qsee;
else
qclk = &qseecom.ce_drv;
if (qclk->clk_access_cnt > 2) {
pr_err("Invalid clock ref count %d\n", qclk->clk_access_cnt);
ret = -EINVAL;
goto err_dec_ref_cnt;
}
if (qclk->clk_access_cnt == 2)
qclk->clk_access_cnt--;
err_dec_ref_cnt:
mutex_unlock(&clk_access_lock);
return ret;
}
static int qseecom_scale_bus_bandwidth_timer(uint32_t mode)
{
int32_t ret = 0;
int32_t request_mode = INACTIVE;
mutex_lock(&qsee_bw_mutex);
if (mode == 0) {
if (qseecom.cumulative_mode > MEDIUM)
request_mode = HIGH;
else
request_mode = qseecom.cumulative_mode;
} else {
request_mode = mode;
}
ret = __qseecom_set_msm_bus_request(request_mode);
if (ret) {
pr_err("set msm bus request failed (%d),request_mode (%d)\n",
ret, request_mode);
goto err_scale_timer;
}
if (qseecom.timer_running) {
ret = __qseecom_decrease_clk_ref_count(CLK_QSEE);
if (ret) {
pr_err("Failed to decrease clk ref count.\n");
goto err_scale_timer;
}
del_timer_sync(&(qseecom.bw_scale_down_timer));
qseecom.timer_running = false;
}
err_scale_timer:
mutex_unlock(&qsee_bw_mutex);
return ret;
}
static int qseecom_unregister_bus_bandwidth_needs(
struct qseecom_dev_handle *data)
{
int32_t ret = 0;
qseecom.cumulative_mode -= data->mode;
data->mode = INACTIVE;
return ret;
}
static int __qseecom_register_bus_bandwidth_needs(
struct qseecom_dev_handle *data, uint32_t request_mode)
{
int32_t ret = 0;
if (data->mode == INACTIVE) {
qseecom.cumulative_mode += request_mode;
data->mode = request_mode;
} else {
if (data->mode != request_mode) {
qseecom.cumulative_mode -= data->mode;
qseecom.cumulative_mode += request_mode;
data->mode = request_mode;
}
}
return ret;
}
static int qseecom_perf_enable(struct qseecom_dev_handle *data)
{
int ret = 0;
ret = qsee_vote_for_clock(data, CLK_DFAB);
if (ret) {
pr_err("Failed to vote for DFAB clock with err %d\n", ret);
goto perf_enable_exit;
}
ret = qsee_vote_for_clock(data, CLK_SFPB);
if (ret) {
qsee_disable_clock_vote(data, CLK_DFAB);
pr_err("Failed to vote for SFPB clock with err %d\n", ret);
goto perf_enable_exit;
}
perf_enable_exit:
return ret;
}
static int qseecom_scale_bus_bandwidth(struct qseecom_dev_handle *data,
void __user *argp)
{
int32_t ret = 0;
int32_t req_mode;
if (qseecom.no_clock_support)
return 0;
ret = copy_from_user(&req_mode, argp, sizeof(req_mode));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (req_mode > HIGH) {
pr_err("Invalid bandwidth mode (%d)\n", req_mode);
return -EINVAL;
}
/*
* Register bus bandwidth needs if bus scaling feature is enabled;
* otherwise, qseecom enable/disable clocks for the client directly.
*/
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
ret = __qseecom_register_bus_bandwidth_needs(data, req_mode);
mutex_unlock(&qsee_bw_mutex);
} else {
pr_debug("Bus scaling feature is NOT enabled\n");
pr_debug("request bandwidth mode %d for the client\n",
req_mode);
if (req_mode != INACTIVE) {
ret = qseecom_perf_enable(data);
if (ret)
pr_err("Failed to vote for clock with err %d\n",
ret);
} else {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
}
}
return ret;
}
static void __qseecom_add_bw_scale_down_timer(uint32_t duration)
{
if (qseecom.no_clock_support)
return;
mutex_lock(&qsee_bw_mutex);
qseecom.bw_scale_down_timer.expires = jiffies +
msecs_to_jiffies(duration);
mod_timer(&(qseecom.bw_scale_down_timer),
qseecom.bw_scale_down_timer.expires);
qseecom.timer_running = true;
mutex_unlock(&qsee_bw_mutex);
}
static void __qseecom_disable_clk_scale_down(struct qseecom_dev_handle *data)
{
if (!qseecom.support_bus_scaling)
qsee_disable_clock_vote(data, CLK_SFPB);
else
__qseecom_add_bw_scale_down_timer(
QSEECOM_LOAD_APP_CRYPTO_TIMEOUT);
}
static int __qseecom_enable_clk_scale_up(struct qseecom_dev_handle *data)
{
int ret = 0;
if (qseecom.support_bus_scaling) {
ret = qseecom_scale_bus_bandwidth_timer(MEDIUM);
if (ret)
pr_err("Failed to set bw MEDIUM.\n");
} else {
ret = qsee_vote_for_clock(data, CLK_SFPB);
if (ret)
pr_err("Fail vote for clk SFPB ret %d\n", ret);
}
return ret;
}
static int qseecom_set_client_mem_param(struct qseecom_dev_handle *data,
void __user *argp)
{
ion_phys_addr_t pa;
int32_t ret;
struct qseecom_set_sb_mem_param_req req;
size_t len;
/* Copy the relevant information needed for loading the image */
if (copy_from_user(&req, (void __user *)argp, sizeof(req)))
return -EFAULT;
if ((req.ifd_data_fd <= 0) || (req.virt_sb_base == NULL) ||
(req.sb_len == 0)) {
pr_err("Inavlid input(s)ion_fd(%d), sb_len(%d), vaddr(0x%pK)\n",
req.ifd_data_fd, req.sb_len, req.virt_sb_base);
return -EFAULT;
}
if (!access_ok(VERIFY_WRITE, (void __user *)req.virt_sb_base,
req.sb_len))
return -EFAULT;
/* Get the handle of the shared fd */
data->client.ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
req.ifd_data_fd);
if (IS_ERR_OR_NULL(data->client.ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
return -ENOMEM;
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len);
if (ret) {
pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n",
ret);
return ret;
}
if (len < req.sb_len) {
pr_err("Requested length (0x%x) is > allocated (%zu)\n",
req.sb_len, len);
return -EINVAL;
}
/* Populate the structure for sending scm call to load image */
data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt,
data->client.ihandle);
if (IS_ERR_OR_NULL(data->client.sb_virt)) {
pr_err("ION memory mapping for client shared buf failed\n");
return -ENOMEM;
}
data->client.sb_phys = (phys_addr_t)pa;
data->client.sb_length = req.sb_len;
data->client.user_virt_sb_base = (uintptr_t)req.virt_sb_base;
return 0;
}
static int __qseecom_listener_has_sent_rsp(struct qseecom_dev_handle *data,
struct qseecom_registered_listener_list *ptr_svc)
{
int ret;
ret = (qseecom.send_resp_flag != 0);
return ret || data->abort || ptr_svc->abort;
}
static int __qseecom_reentrancy_listener_has_sent_rsp(
struct qseecom_dev_handle *data,
struct qseecom_registered_listener_list *ptr_svc)
{
int ret;
ret = (ptr_svc->send_resp_flag != 0);
return ret || data->abort || ptr_svc->abort;
}
static void __qseecom_clean_listener_sglistinfo(
struct qseecom_registered_listener_list *ptr_svc)
{
if (ptr_svc->sglist_cnt) {
memset(ptr_svc->sglistinfo_ptr, 0,
SGLISTINFO_TABLE_SIZE);
ptr_svc->sglist_cnt = 0;
}
}
static int __is_listener_rcv_wq_not_ready(
struct qseecom_registered_listener_list *ptr_svc)
{
return ptr_svc->rcv_req_flag == -1;
}
static int __qseecom_process_incomplete_cmd(struct qseecom_dev_handle *data,
struct qseecom_command_scm_resp *resp)
{
int ret = 0;
int rc = 0;
uint32_t lstnr;
unsigned long flags;
struct qseecom_client_listener_data_irsp send_data_rsp = {0};
struct qseecom_client_listener_data_64bit_irsp send_data_rsp_64bit
= {0};
struct qseecom_registered_listener_list *ptr_svc = NULL;
sigset_t new_sigset;
sigset_t old_sigset;
uint32_t status;
void *cmd_buf = NULL;
size_t cmd_len;
struct sglist_info *table = NULL;
bool not_ready = false;
while (resp->result == QSEOS_RESULT_INCOMPLETE) {
lstnr = resp->data;
/*
* Wake up blocking lsitener service with the lstnr id
*/
spin_lock_irqsave(&qseecom.registered_listener_list_lock,
flags);
list_for_each_entry(ptr_svc,
&qseecom.registered_listener_list_head, list) {
if (ptr_svc->svc.listener_id == lstnr) {
if (__is_listener_rcv_wq_not_ready(ptr_svc)) {
not_ready = true;
break;
}
ptr_svc->listener_in_use = true;
ptr_svc->rcv_req_flag = 1;
wake_up_interruptible(&ptr_svc->rcv_req_wq);
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock,
flags);
if (ptr_svc == NULL) {
pr_err("Listener Svc %d does not exist\n", lstnr);
rc = -EINVAL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (!ptr_svc->ihandle) {
pr_err("Client handle is not initialized\n");
rc = -EINVAL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (ptr_svc->svc.listener_id != lstnr) {
pr_err("Service %d does not exist\n",
lstnr);
rc = -ERESTARTSYS;
ptr_svc = NULL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (ptr_svc->abort == 1) {
pr_err("Service %d abort %d\n",
lstnr, ptr_svc->abort);
rc = -ENODEV;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (not_ready) {
pr_err("Service %d is not ready to receive request\n",
lstnr);
rc = -ENOENT;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
pr_debug("waking up rcv_req_wq and waiting for send_resp_wq\n");
/* initialize the new signal mask with all signals*/
sigfillset(&new_sigset);
/* block all signals */
sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset);
do {
/*
* When reentrancy is not supported, check global
* send_resp_flag; otherwise, check this listener's
* send_resp_flag.
*/
if (!qseecom.qsee_reentrancy_support &&
!wait_event_interruptible(qseecom.send_resp_wq,
__qseecom_listener_has_sent_rsp(
data, ptr_svc))) {
break;
}
if (qseecom.qsee_reentrancy_support &&
!wait_event_interruptible(qseecom.send_resp_wq,
__qseecom_reentrancy_listener_has_sent_rsp(
data, ptr_svc))) {
break;
}
} while (1);
/* restore signal mask */
sigprocmask(SIG_SETMASK, &old_sigset, NULL);
if (data->abort || ptr_svc->abort) {
pr_err("Abort clnt %d waiting on lstnr svc %d, ret %d",
data->client.app_id, lstnr, ret);
rc = -ENODEV;
status = QSEOS_RESULT_FAILURE;
} else {
status = QSEOS_RESULT_SUCCESS;
}
err_resp:
qseecom.send_resp_flag = 0;
if (ptr_svc) {
ptr_svc->send_resp_flag = 0;
table = ptr_svc->sglistinfo_ptr;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
send_data_rsp.listener_id = lstnr;
send_data_rsp.status = status;
if (table) {
send_data_rsp.sglistinfo_ptr =
(uint32_t)virt_to_phys(table);
send_data_rsp.sglistinfo_len =
SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
}
cmd_buf = (void *)&send_data_rsp;
cmd_len = sizeof(send_data_rsp);
} else {
send_data_rsp_64bit.listener_id = lstnr;
send_data_rsp_64bit.status = status;
if (table) {
send_data_rsp_64bit.sglistinfo_ptr =
virt_to_phys(table);
send_data_rsp_64bit.sglistinfo_len =
SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
}
cmd_buf = (void *)&send_data_rsp_64bit;
cmd_len = sizeof(send_data_rsp_64bit);
}
if (qseecom.whitelist_support == false || table == NULL)
*(uint32_t *)cmd_buf = QSEOS_LISTENER_DATA_RSP_COMMAND;
else
*(uint32_t *)cmd_buf =
QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST;
if (ptr_svc) {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ptr_svc->ihandle,
ptr_svc->sb_virt, ptr_svc->sb_length,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
}
if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE)) {
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
}
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len, resp, sizeof(*resp));
if (ptr_svc) {
ptr_svc->listener_in_use = false;
__qseecom_clean_listener_sglistinfo(ptr_svc);
}
if (ret) {
pr_err("scm_call() failed with err: %d (app_id = %d)\n",
ret, data->client.app_id);
if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE))
__qseecom_disable_clk(CLK_QSEE);
return ret;
}
pr_debug("resp status %d, res= %d, app_id = %d, lstr = %d\n",
status, resp->result, data->client.app_id, lstnr);
if ((resp->result != QSEOS_RESULT_SUCCESS) &&
(resp->result != QSEOS_RESULT_INCOMPLETE)) {
pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n",
resp->result, data->client.app_id, lstnr);
ret = -EINVAL;
}
if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE))
__qseecom_disable_clk(CLK_QSEE);
}
wake_up_interruptible_all(&qseecom.app_block_wq);
if (rc)
return rc;
return ret;
}
static int __qseecom_process_reentrancy_blocked_on_listener(
struct qseecom_command_scm_resp *resp,
struct qseecom_registered_app_list *ptr_app,
struct qseecom_dev_handle *data)
{
struct qseecom_registered_listener_list *list_ptr;
int ret = 0;
struct qseecom_continue_blocked_request_ireq ireq;
struct qseecom_command_scm_resp continue_resp;
unsigned int session_id;
sigset_t new_sigset;
sigset_t old_sigset;
unsigned long flags;
bool found_app = false;
if (!resp || !data) {
pr_err("invalid resp or data pointer\n");
ret = -EINVAL;
goto exit;
}
/* find app_id & img_name from list */
if (!ptr_app) {
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(ptr_app, &qseecom.registered_app_list_head,
list) {
if ((ptr_app->app_id == data->client.app_id) &&
(!strcmp(ptr_app->app_name,
data->client.app_name))) {
found_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags);
if (!found_app) {
pr_err("app_id %d (%s) is not found\n",
data->client.app_id,
(char *)data->client.app_name);
ret = -ENOENT;
goto exit;
}
}
do {
session_id = resp->resp_type;
list_ptr = __qseecom_find_svc(resp->data);
if (!list_ptr) {
pr_err("Invalid listener ID %d\n", resp->data);
ret = -ENODATA;
goto exit;
}
ptr_app->blocked_on_listener_id = resp->data;
pr_warn("Lsntr %d in_use %d, block session(%d) app(%d)\n",
resp->data, list_ptr->listener_in_use,
session_id, data->client.app_id);
/* sleep until listener is available */
sigfillset(&new_sigset);
sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset);
do {
qseecom.app_block_ref_cnt++;
ptr_app->app_blocked = true;
mutex_unlock(&app_access_lock);
wait_event_interruptible(
list_ptr->listener_block_app_wq,
!list_ptr->listener_in_use);
mutex_lock(&app_access_lock);
ptr_app->app_blocked = false;
qseecom.app_block_ref_cnt--;
} while (list_ptr->listener_in_use);
sigprocmask(SIG_SETMASK, &old_sigset, NULL);
ptr_app->blocked_on_listener_id = 0;
pr_warn("Lsntr %d is available, unblock session(%d) app(%d)\n",
resp->data, session_id, data->client.app_id);
/* notify TZ that listener is available */
ireq.qsee_cmd_id = QSEOS_CONTINUE_BLOCKED_REQ_COMMAND;
if (qseecom.smcinvoke_support)
ireq.app_or_session_id = session_id;
else
ireq.app_or_session_id = data->client.app_id;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
&ireq, sizeof(ireq),
&continue_resp, sizeof(continue_resp));
if (ret && qseecom.smcinvoke_support) {
/* retry with legacy cmd */
qseecom.smcinvoke_support = false;
ireq.app_or_session_id = data->client.app_id;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
&ireq, sizeof(ireq),
&continue_resp, sizeof(continue_resp));
qseecom.smcinvoke_support = true;
if (ret) {
pr_err("unblock app %d or session %d fail\n",
data->client.app_id, session_id);
goto exit;
}
}
resp->result = continue_resp.result;
resp->resp_type = continue_resp.resp_type;
resp->data = continue_resp.data;
pr_debug("unblock resp = %d\n", resp->result);
} while (resp->result == QSEOS_RESULT_BLOCKED_ON_LISTENER);
if (resp->result != QSEOS_RESULT_INCOMPLETE) {
pr_err("Unexpected unblock resp %d\n", resp->result);
ret = -EINVAL;
}
exit:
return ret;
}
static int __qseecom_reentrancy_process_incomplete_cmd(
struct qseecom_dev_handle *data,
struct qseecom_command_scm_resp *resp)
{
int ret = 0;
int rc = 0;
uint32_t lstnr;
unsigned long flags;
struct qseecom_client_listener_data_irsp send_data_rsp = {0};
struct qseecom_client_listener_data_64bit_irsp send_data_rsp_64bit
= {0};
struct qseecom_registered_listener_list *ptr_svc = NULL;
sigset_t new_sigset;
sigset_t old_sigset;
uint32_t status;
void *cmd_buf = NULL;
size_t cmd_len;
struct sglist_info *table = NULL;
bool not_ready = false;
while (ret == 0 && resp->result == QSEOS_RESULT_INCOMPLETE) {
lstnr = resp->data;
/*
* Wake up blocking lsitener service with the lstnr id
*/
spin_lock_irqsave(&qseecom.registered_listener_list_lock,
flags);
list_for_each_entry(ptr_svc,
&qseecom.registered_listener_list_head, list) {
if (ptr_svc->svc.listener_id == lstnr) {
if (__is_listener_rcv_wq_not_ready(ptr_svc)) {
not_ready = true;
break;
}
ptr_svc->listener_in_use = true;
ptr_svc->rcv_req_flag = 1;
wake_up_interruptible(&ptr_svc->rcv_req_wq);
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_listener_list_lock,
flags);
if (ptr_svc == NULL) {
pr_err("Listener Svc %d does not exist\n", lstnr);
rc = -EINVAL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (!ptr_svc->ihandle) {
pr_err("Client handle is not initialized\n");
rc = -EINVAL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (ptr_svc->svc.listener_id != lstnr) {
pr_err("Service %d does not exist\n",
lstnr);
rc = -ERESTARTSYS;
ptr_svc = NULL;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (ptr_svc->abort == 1) {
pr_err("Service %d abort %d\n",
lstnr, ptr_svc->abort);
rc = -ENODEV;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
if (not_ready) {
pr_err("Service %d is not ready to receive request\n",
lstnr);
rc = -ENOENT;
status = QSEOS_RESULT_FAILURE;
goto err_resp;
}
pr_debug("waking up rcv_req_wq and waiting for send_resp_wq\n");
/* initialize the new signal mask with all signals*/
sigfillset(&new_sigset);
/* block all signals */
sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset);
/* unlock mutex btw waking listener and sleep-wait */
mutex_unlock(&app_access_lock);
do {
if (!wait_event_interruptible(qseecom.send_resp_wq,
__qseecom_reentrancy_listener_has_sent_rsp(
data, ptr_svc))) {
break;
}
} while (1);
/* lock mutex again after resp sent */
mutex_lock(&app_access_lock);
ptr_svc->send_resp_flag = 0;
qseecom.send_resp_flag = 0;
/* restore signal mask */
sigprocmask(SIG_SETMASK, &old_sigset, NULL);
if (data->abort || ptr_svc->abort) {
pr_err("Abort clnt %d waiting on lstnr svc %d, ret %d",
data->client.app_id, lstnr, ret);
rc = -ENODEV;
status = QSEOS_RESULT_FAILURE;
} else {
status = QSEOS_RESULT_SUCCESS;
}
err_resp:
if (ptr_svc)
table = ptr_svc->sglistinfo_ptr;
if (qseecom.qsee_version < QSEE_VERSION_40) {
send_data_rsp.listener_id = lstnr;
send_data_rsp.status = status;
if (table) {
send_data_rsp.sglistinfo_ptr =
(uint32_t)virt_to_phys(table);
send_data_rsp.sglistinfo_len =
SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
}
cmd_buf = (void *)&send_data_rsp;
cmd_len = sizeof(send_data_rsp);
} else {
send_data_rsp_64bit.listener_id = lstnr;
send_data_rsp_64bit.status = status;
if (table) {
send_data_rsp_64bit.sglistinfo_ptr =
virt_to_phys(table);
send_data_rsp_64bit.sglistinfo_len =
SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
}
cmd_buf = (void *)&send_data_rsp_64bit;
cmd_len = sizeof(send_data_rsp_64bit);
}
if (qseecom.whitelist_support == false || table == NULL)
*(uint32_t *)cmd_buf = QSEOS_LISTENER_DATA_RSP_COMMAND;
else
*(uint32_t *)cmd_buf =
QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST;
if (ptr_svc) {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ptr_svc->ihandle,
ptr_svc->sb_virt, ptr_svc->sb_length,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
}
if (lstnr == RPMB_SERVICE) {
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
}
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len, resp, sizeof(*resp));
if (ptr_svc) {
ptr_svc->listener_in_use = false;
__qseecom_clean_listener_sglistinfo(ptr_svc);
wake_up_interruptible(&ptr_svc->listener_block_app_wq);
}
if (ret) {
pr_err("scm_call() failed with err: %d (app_id = %d)\n",
ret, data->client.app_id);
goto exit;
}
switch (resp->result) {
case QSEOS_RESULT_BLOCKED_ON_LISTENER:
pr_warn("send lsr %d rsp, but app %d block on lsr %d\n",
lstnr, data->client.app_id, resp->data);
if (lstnr == resp->data) {
pr_err("lstnr %d should not be blocked!\n",
lstnr);
ret = -EINVAL;
goto exit;
}
ret = __qseecom_process_reentrancy_blocked_on_listener(
resp, NULL, data);
if (ret) {
pr_err("failed to process App(%d) %s blocked on listener %d\n",
data->client.app_id,
data->client.app_name, resp->data);
goto exit;
}
case QSEOS_RESULT_SUCCESS:
case QSEOS_RESULT_INCOMPLETE:
break;
default:
pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n",
resp->result, data->client.app_id, lstnr);
ret = -EINVAL;
goto exit;
}
exit:
if (lstnr == RPMB_SERVICE)
__qseecom_disable_clk(CLK_QSEE);
}
if (rc)
return rc;
return ret;
}
/*
* QSEE doesn't support OS level cmds reentrancy until RE phase-3,
* and QSEE OS level scm_call cmds will fail if there is any blocked TZ app.
* So, needs to first check if no app blocked before sending OS level scm call,
* then wait until all apps are unblocked.
*/
static void __qseecom_reentrancy_check_if_no_app_blocked(uint32_t smc_id)
{
if (qseecom.qsee_reentrancy_support > QSEE_REENTRANCY_PHASE_0 &&
qseecom.qsee_reentrancy_support < QSEE_REENTRANCY_PHASE_3 &&
IS_OWNER_TRUSTED_OS(TZ_SYSCALL_OWNER_ID(smc_id))) {
/* thread sleep until this app unblocked */
while (qseecom.app_block_ref_cnt > 0) {
mutex_unlock(&app_access_lock);
wait_event_interruptible(qseecom.app_block_wq,
(!qseecom.app_block_ref_cnt));
mutex_lock(&app_access_lock);
}
}
}
/*
* scm_call of send data will fail if this TA is blocked or there are more
* than one TA requesting listener services; So, first check to see if need
* to wait.
*/
static void __qseecom_reentrancy_check_if_this_app_blocked(
struct qseecom_registered_app_list *ptr_app)
{
if (qseecom.qsee_reentrancy_support) {
ptr_app->check_block++;
while (ptr_app->app_blocked || qseecom.app_block_ref_cnt > 1) {
/* thread sleep until this app unblocked */
mutex_unlock(&app_access_lock);
wait_event_interruptible(qseecom.app_block_wq,
(!ptr_app->app_blocked &&
qseecom.app_block_ref_cnt <= 1));
mutex_lock(&app_access_lock);
}
ptr_app->check_block--;
}
}
static int __qseecom_check_app_exists(struct qseecom_check_app_ireq req,
uint32_t *app_id)
{
int32_t ret;
struct qseecom_command_scm_resp resp;
bool found_app = false;
struct qseecom_registered_app_list *entry = NULL;
unsigned long flags = 0;
if (!app_id) {
pr_err("Null pointer to app_id\n");
return -EINVAL;
}
*app_id = 0;
/* check if app exists and has been registered locally */
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_app_list_head, list) {
if (!strcmp(entry->app_name, req.app_name)) {
found_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags);
if (found_app) {
pr_debug("Found app with id %d\n", entry->app_id);
*app_id = entry->app_id;
return 0;
}
memset((void *)&resp, 0, sizeof(resp));
/* SCM_CALL to check if app_id for the mentioned app exists */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req,
sizeof(struct qseecom_check_app_ireq),
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to check if app is already loaded failed\n");
return -EINVAL;
}
if (resp.result == QSEOS_RESULT_FAILURE)
return 0;
switch (resp.resp_type) {
/*qsee returned listener type response */
case QSEOS_LISTENER_ID:
pr_err("resp type is of listener type instead of app");
return -EINVAL;
case QSEOS_APP_ID:
*app_id = resp.data;
return 0;
default:
pr_err("invalid resp type (%d) from qsee",
resp.resp_type);
return -ENODEV;
}
}
static int qseecom_load_app(struct qseecom_dev_handle *data, void __user *argp)
{
struct qseecom_registered_app_list *entry = NULL;
unsigned long flags = 0;
u32 app_id = 0;
struct ion_handle *ihandle; /* Ion handle */
struct qseecom_load_img_req load_img_req;
int32_t ret = 0;
ion_phys_addr_t pa = 0;
size_t len;
struct qseecom_command_scm_resp resp;
struct qseecom_check_app_ireq req;
struct qseecom_load_app_ireq load_req;
struct qseecom_load_app_64bit_ireq load_req_64bit;
void *cmd_buf = NULL;
size_t cmd_len;
bool first_time = false;
/* Copy the relevant information needed for loading the image */
if (copy_from_user(&load_img_req,
(void __user *)argp,
sizeof(struct qseecom_load_img_req))) {
pr_err("copy_from_user failed\n");
return -EFAULT;
}
/* Check and load cmnlib */
if (qseecom.qsee_version > QSEEE_VERSION_00) {
if (!qseecom.commonlib_loaded &&
load_img_req.app_arch == ELFCLASS32) {
ret = qseecom_load_commonlib_image(data, "cmnlib");
if (ret) {
pr_err("failed to load cmnlib\n");
return -EIO;
}
qseecom.commonlib_loaded = true;
pr_debug("cmnlib is loaded\n");
}
if (!qseecom.commonlib64_loaded &&
load_img_req.app_arch == ELFCLASS64) {
ret = qseecom_load_commonlib_image(data, "cmnlib64");
if (ret) {
pr_err("failed to load cmnlib64\n");
return -EIO;
}
qseecom.commonlib64_loaded = true;
pr_debug("cmnlib64 is loaded\n");
}
}
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM);
mutex_unlock(&qsee_bw_mutex);
if (ret)
return ret;
}
/* Vote for the SFPB clock */
ret = __qseecom_enable_clk_scale_up(data);
if (ret)
goto enable_clk_err;
req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND;
load_img_req.img_name[MAX_APP_NAME_SIZE-1] = '\0';
strlcpy(req.app_name, load_img_req.img_name, MAX_APP_NAME_SIZE);
ret = __qseecom_check_app_exists(req, &app_id);
if (ret < 0)
goto loadapp_err;
if (app_id) {
pr_debug("App id %d (%s) already exists\n", app_id,
(char *)(req.app_name));
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_app_list_head, list){
if (entry->app_id == app_id) {
entry->ref_cnt++;
break;
}
}
spin_unlock_irqrestore(
&qseecom.registered_app_list_lock, flags);
ret = 0;
} else {
first_time = true;
pr_warn("App (%s) does'nt exist, loading apps for first time\n",
(char *)(load_img_req.img_name));
/* Get the handle of the shared fd */
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
load_img_req.ifd_data_fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
ret = -ENOMEM;
goto loadapp_err;
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len);
if (ret) {
pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n",
ret);
goto loadapp_err;
}
if (load_img_req.mdt_len > len || load_img_req.img_len > len) {
pr_err("ion len %zu is smaller than mdt_len %u or img_len %u\n",
len, load_img_req.mdt_len,
load_img_req.img_len);
ret = -EINVAL;
goto loadapp_err;
}
/* Populate the structure for sending scm call to load image */
if (qseecom.qsee_version < QSEE_VERSION_40) {
load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND;
load_req.mdt_len = load_img_req.mdt_len;
load_req.img_len = load_img_req.img_len;
strlcpy(load_req.app_name, load_img_req.img_name,
MAX_APP_NAME_SIZE);
load_req.phy_addr = (uint32_t)pa;
cmd_buf = (void *)&load_req;
cmd_len = sizeof(struct qseecom_load_app_ireq);
} else {
load_req_64bit.qsee_cmd_id = QSEOS_APP_START_COMMAND;
load_req_64bit.mdt_len = load_img_req.mdt_len;
load_req_64bit.img_len = load_img_req.img_len;
strlcpy(load_req_64bit.app_name, load_img_req.img_name,
MAX_APP_NAME_SIZE);
load_req_64bit.phy_addr = (uint64_t)pa;
cmd_buf = (void *)&load_req_64bit;
cmd_len = sizeof(struct qseecom_load_app_64bit_ireq);
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto loadapp_err;
}
/* SCM_CALL to load the app and get the app_id back */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf,
cmd_len, &resp, sizeof(resp));
if (ret) {
pr_err("scm_call to load app failed\n");
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
ret = -EINVAL;
goto loadapp_err;
}
if (resp.result == QSEOS_RESULT_FAILURE) {
pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n");
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
ret = -EFAULT;
goto loadapp_err;
}
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd failed err: %d\n",
ret);
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
ret = -EFAULT;
goto loadapp_err;
}
}
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("scm_call failed resp.result unknown, %d\n",
resp.result);
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
ret = -EFAULT;
goto loadapp_err;
}
app_id = resp.data;
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
ret = -ENOMEM;
goto loadapp_err;
}
entry->app_id = app_id;
entry->ref_cnt = 1;
entry->app_arch = load_img_req.app_arch;
/*
* keymaster app may be first loaded as "keymaste" by qseecomd,
* and then used as "keymaster" on some targets. To avoid app
* name checking error, register "keymaster" into app_list and
* thread private data.
*/
if (!strcmp(load_img_req.img_name, "keymaste"))
strlcpy(entry->app_name, "keymaster",
MAX_APP_NAME_SIZE);
else
strlcpy(entry->app_name, load_img_req.img_name,
MAX_APP_NAME_SIZE);
entry->app_blocked = false;
entry->blocked_on_listener_id = 0;
entry->check_block = 0;
/* Deallocate the handle */
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_add_tail(&entry->list, &qseecom.registered_app_list_head);
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags);
pr_warn("App with id %u (%s) now loaded\n", app_id,
(char *)(load_img_req.img_name));
}
data->client.app_id = app_id;
data->client.app_arch = load_img_req.app_arch;
if (!strcmp(load_img_req.img_name, "keymaste"))
strlcpy(data->client.app_name, "keymaster", MAX_APP_NAME_SIZE);
else
strlcpy(data->client.app_name, load_img_req.img_name,
MAX_APP_NAME_SIZE);
load_img_req.app_id = app_id;
if (copy_to_user(argp, &load_img_req, sizeof(load_img_req))) {
pr_err("copy_to_user failed\n");
ret = -EFAULT;
if (first_time == true) {
spin_lock_irqsave(
&qseecom.registered_app_list_lock, flags);
list_del(&entry->list);
spin_unlock_irqrestore(
&qseecom.registered_app_list_lock, flags);
kzfree(entry);
}
}
loadapp_err:
__qseecom_disable_clk_scale_down(data);
enable_clk_err:
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
qseecom_unregister_bus_bandwidth_needs(data);
mutex_unlock(&qsee_bw_mutex);
}
return ret;
}
static int __qseecom_cleanup_app(struct qseecom_dev_handle *data)
{
int ret = 1; /* Set unload app */
wake_up_all(&qseecom.send_resp_wq);
if (qseecom.qsee_reentrancy_support)
mutex_unlock(&app_access_lock);
while (atomic_read(&data->ioctl_count) > 1) {
if (wait_event_interruptible(data->abort_wq,
atomic_read(&data->ioctl_count) <= 1)) {
pr_err("Interrupted from abort\n");
ret = -ERESTARTSYS;
break;
}
}
if (qseecom.qsee_reentrancy_support)
mutex_lock(&app_access_lock);
return ret;
}
static int qseecom_unmap_ion_allocated_memory(struct qseecom_dev_handle *data)
{
int ret = 0;
if (!IS_ERR_OR_NULL(data->client.ihandle)) {
ion_unmap_kernel(qseecom.ion_clnt, data->client.ihandle);
ion_free(qseecom.ion_clnt, data->client.ihandle);
data->client.ihandle = NULL;
}
return ret;
}
static int qseecom_unload_app(struct qseecom_dev_handle *data,
bool app_crash)
{
unsigned long flags;
unsigned long flags1;
int ret = 0;
struct qseecom_command_scm_resp resp;
struct qseecom_registered_app_list *ptr_app = NULL;
bool unload = false;
bool found_app = false;
bool found_dead_app = false;
bool scm_called = false;
if (!data) {
pr_err("Invalid/uninitialized device handle\n");
return -EINVAL;
}
if (!memcmp(data->client.app_name, "keymaste", strlen("keymaste"))) {
pr_debug("Do not unload keymaster app from tz\n");
goto unload_exit;
}
__qseecom_cleanup_app(data);
__qseecom_reentrancy_check_if_no_app_blocked(TZ_OS_APP_SHUTDOWN_ID);
if (data->client.app_id > 0) {
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(ptr_app, &qseecom.registered_app_list_head,
list) {
if (ptr_app->app_id == data->client.app_id) {
if (!strcmp((void *)ptr_app->app_name,
(void *)data->client.app_name)) {
found_app = true;
if (ptr_app->app_blocked ||
ptr_app->check_block)
app_crash = false;
if (app_crash || ptr_app->ref_cnt == 1)
unload = true;
break;
}
found_dead_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags);
if (found_app == false && found_dead_app == false) {
pr_err("Cannot find app with id = %d (%s)\n",
data->client.app_id,
(char *)data->client.app_name);
ret = -EINVAL;
goto unload_exit;
}
}
if (found_dead_app)
pr_warn("cleanup app_id %d(%s)\n", data->client.app_id,
(char *)data->client.app_name);
if (unload) {
struct qseecom_unload_app_ireq req;
/* Populate the structure for sending scm call to load image */
req.qsee_cmd_id = QSEOS_APP_SHUTDOWN_COMMAND;
req.app_id = data->client.app_id;
/* SCM_CALL to unload the app */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req,
sizeof(struct qseecom_unload_app_ireq),
&resp, sizeof(resp));
scm_called = true;
if (ret) {
pr_err("scm_call to unload app (id = %d) failed\n",
req.app_id);
ret = -EFAULT;
goto scm_exit;
} else {
pr_warn("App id %d now unloaded\n", req.app_id);
}
if (resp.result == QSEOS_RESULT_FAILURE) {
pr_err("app (%d) unload_failed!!\n",
data->client.app_id);
ret = -EFAULT;
goto scm_exit;
}
if (resp.result == QSEOS_RESULT_SUCCESS)
pr_debug("App (%d) is unloaded!!\n",
data->client.app_id);
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd fail err: %d\n",
ret);
goto scm_exit;
}
}
}
scm_exit:
if (scm_called) {
/* double check if this app_entry still exists */
bool doublecheck = false;
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags1);
list_for_each_entry(ptr_app,
&qseecom.registered_app_list_head, list) {
if ((ptr_app->app_id == data->client.app_id) &&
(!strcmp((void *)ptr_app->app_name,
(void *)data->client.app_name))) {
doublecheck = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags1);
if (!doublecheck) {
pr_warn("app %d(%s) entry is already removed\n",
data->client.app_id,
(char *)data->client.app_name);
found_app = false;
}
}
unload_exit:
if (found_app) {
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags1);
if (app_crash) {
ptr_app->ref_cnt = 0;
pr_debug("app_crash: ref_count = 0\n");
} else {
if (ptr_app->ref_cnt == 1) {
ptr_app->ref_cnt = 0;
pr_debug("ref_count set to 0\n");
} else {
ptr_app->ref_cnt--;
pr_debug("Can't unload app(%d) inuse\n",
ptr_app->app_id);
}
}
if (unload) {
list_del(&ptr_app->list);
kzfree(ptr_app);
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags1);
}
qseecom_unmap_ion_allocated_memory(data);
data->released = true;
return ret;
}
static phys_addr_t __qseecom_uvirt_to_kphys(struct qseecom_dev_handle *data,
unsigned long virt)
{
return data->client.sb_phys + (virt - data->client.user_virt_sb_base);
}
static uintptr_t __qseecom_uvirt_to_kvirt(struct qseecom_dev_handle *data,
unsigned long virt)
{
return (uintptr_t)data->client.sb_virt +
(virt - data->client.user_virt_sb_base);
}
int __qseecom_process_rpmb_svc_cmd(struct qseecom_dev_handle *data_ptr,
struct qseecom_send_svc_cmd_req *req_ptr,
struct qseecom_client_send_service_ireq *send_svc_ireq_ptr)
{
int ret = 0;
void *req_buf = NULL;
if ((req_ptr == NULL) || (send_svc_ireq_ptr == NULL)) {
pr_err("Error with pointer: req_ptr = %pK, send_svc_ptr = %pK\n",
req_ptr, send_svc_ireq_ptr);
return -EINVAL;
}
/* Clients need to ensure req_buf is at base offset of shared buffer */
if ((uintptr_t)req_ptr->cmd_req_buf !=
data_ptr->client.user_virt_sb_base) {
pr_err("cmd buf not pointing to base offset of shared buffer\n");
return -EINVAL;
}
if (data_ptr->client.sb_length <
sizeof(struct qseecom_rpmb_provision_key)) {
pr_err("shared buffer is too small to hold key type\n");
return -EINVAL;
}
req_buf = data_ptr->client.sb_virt;
send_svc_ireq_ptr->qsee_cmd_id = req_ptr->cmd_id;
send_svc_ireq_ptr->key_type =
((struct qseecom_rpmb_provision_key *)req_buf)->key_type;
send_svc_ireq_ptr->req_len = req_ptr->cmd_req_len;
send_svc_ireq_ptr->rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys(
data_ptr, (uintptr_t)req_ptr->resp_buf));
send_svc_ireq_ptr->rsp_len = req_ptr->resp_len;
return ret;
}
int __qseecom_process_fsm_key_svc_cmd(struct qseecom_dev_handle *data_ptr,
struct qseecom_send_svc_cmd_req *req_ptr,
struct qseecom_client_send_fsm_key_req *send_svc_ireq_ptr)
{
int ret = 0;
uint32_t reqd_len_sb_in = 0;
if ((req_ptr == NULL) || (send_svc_ireq_ptr == NULL)) {
pr_err("Error with pointer: req_ptr = %pK, send_svc_ptr = %pK\n",
req_ptr, send_svc_ireq_ptr);
return -EINVAL;
}
reqd_len_sb_in = req_ptr->cmd_req_len + req_ptr->resp_len;
if (reqd_len_sb_in > data_ptr->client.sb_length) {
pr_err("Not enough memory to fit cmd_buf and resp_buf. ");
pr_err("Required: %u, Available: %zu\n",
reqd_len_sb_in, data_ptr->client.sb_length);
return -ENOMEM;
}
send_svc_ireq_ptr->qsee_cmd_id = req_ptr->cmd_id;
send_svc_ireq_ptr->req_len = req_ptr->cmd_req_len;
send_svc_ireq_ptr->rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys(
data_ptr, (uintptr_t)req_ptr->resp_buf));
send_svc_ireq_ptr->rsp_len = req_ptr->resp_len;
send_svc_ireq_ptr->req_ptr = (uint32_t)(__qseecom_uvirt_to_kphys(
data_ptr, (uintptr_t)req_ptr->cmd_req_buf));
return ret;
}
static int __validate_send_service_cmd_inputs(struct qseecom_dev_handle *data,
struct qseecom_send_svc_cmd_req *req)
{
if (!req || !req->resp_buf || !req->cmd_req_buf) {
pr_err("req or cmd buffer or response buffer is null\n");
return -EINVAL;
}
if (!data || !data->client.ihandle) {
pr_err("Client or client handle is not initialized\n");
return -EINVAL;
}
if (data->client.sb_virt == NULL) {
pr_err("sb_virt null\n");
return -EINVAL;
}
if (data->client.user_virt_sb_base == 0) {
pr_err("user_virt_sb_base is null\n");
return -EINVAL;
}
if (data->client.sb_length == 0) {
pr_err("sb_length is 0\n");
return -EINVAL;
}
if (((uintptr_t)req->cmd_req_buf <
data->client.user_virt_sb_base) ||
((uintptr_t)req->cmd_req_buf >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("cmd buffer address not within shared bufffer\n");
return -EINVAL;
}
if (((uintptr_t)req->resp_buf <
data->client.user_virt_sb_base) ||
((uintptr_t)req->resp_buf >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("response buffer address not within shared bufffer\n");
return -EINVAL;
}
if ((req->cmd_req_len == 0) || (req->resp_len == 0) ||
(req->cmd_req_len > data->client.sb_length) ||
(req->resp_len > data->client.sb_length)) {
pr_err("cmd buf length or response buf length not valid\n");
return -EINVAL;
}
if (req->cmd_req_len > UINT_MAX - req->resp_len) {
pr_err("Integer overflow detected in req_len & rsp_len\n");
return -EINVAL;
}
if ((req->cmd_req_len + req->resp_len) > data->client.sb_length) {
pr_debug("Not enough memory to fit cmd_buf.\n");
pr_debug("resp_buf. Required: %u, Available: %zu\n",
(req->cmd_req_len + req->resp_len),
data->client.sb_length);
return -ENOMEM;
}
if ((uintptr_t)req->cmd_req_buf > (ULONG_MAX - req->cmd_req_len)) {
pr_err("Integer overflow in req_len & cmd_req_buf\n");
return -EINVAL;
}
if ((uintptr_t)req->resp_buf > (ULONG_MAX - req->resp_len)) {
pr_err("Integer overflow in resp_len & resp_buf\n");
return -EINVAL;
}
if (data->client.user_virt_sb_base >
(ULONG_MAX - data->client.sb_length)) {
pr_err("Integer overflow in user_virt_sb_base & sb_length\n");
return -EINVAL;
}
if ((((uintptr_t)req->cmd_req_buf + req->cmd_req_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length)) ||
(((uintptr_t)req->resp_buf + req->resp_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length))) {
pr_err("cmd buf or resp buf is out of shared buffer region\n");
return -EINVAL;
}
return 0;
}
static int qseecom_send_service_cmd(struct qseecom_dev_handle *data,
void __user *argp)
{
int ret = 0;
struct qseecom_client_send_service_ireq send_svc_ireq;
struct qseecom_client_send_fsm_key_req send_fsm_key_svc_ireq;
struct qseecom_command_scm_resp resp;
struct qseecom_send_svc_cmd_req req;
void *send_req_ptr;
size_t req_buf_size;
/*struct qseecom_command_scm_resp resp;*/
if (copy_from_user(&req,
(void __user *)argp,
sizeof(req))) {
pr_err("copy_from_user failed\n");
return -EFAULT;
}
if (__validate_send_service_cmd_inputs(data, &req))
return -EINVAL;
data->type = QSEECOM_SECURE_SERVICE;
switch (req.cmd_id) {
case QSEOS_RPMB_PROVISION_KEY_COMMAND:
case QSEOS_RPMB_ERASE_COMMAND:
case QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND:
send_req_ptr = &send_svc_ireq;
req_buf_size = sizeof(send_svc_ireq);
if (__qseecom_process_rpmb_svc_cmd(data, &req,
send_req_ptr))
return -EINVAL;
break;
case QSEOS_FSM_LTEOTA_REQ_CMD:
case QSEOS_FSM_LTEOTA_REQ_RSP_CMD:
case QSEOS_FSM_IKE_REQ_CMD:
case QSEOS_FSM_IKE_REQ_RSP_CMD:
case QSEOS_FSM_OEM_FUSE_WRITE_ROW:
case QSEOS_FSM_OEM_FUSE_READ_ROW:
case QSEOS_FSM_ENCFS_REQ_CMD:
case QSEOS_FSM_ENCFS_REQ_RSP_CMD:
send_req_ptr = &send_fsm_key_svc_ireq;
req_buf_size = sizeof(send_fsm_key_svc_ireq);
if (__qseecom_process_fsm_key_svc_cmd(data, &req,
send_req_ptr))
return -EINVAL;
break;
default:
pr_err("Unsupported cmd_id %d\n", req.cmd_id);
return -EINVAL;
}
if (qseecom.support_bus_scaling) {
ret = qseecom_scale_bus_bandwidth_timer(HIGH);
if (ret) {
pr_err("Fail to set bw HIGH\n");
return ret;
}
} else {
ret = qseecom_perf_enable(data);
if (ret) {
pr_err("Failed to vote for clocks with err %d\n", ret);
goto exit;
}
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt, data->client.sb_length,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto exit;
}
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
(const void *)send_req_ptr,
req_buf_size, &resp, sizeof(resp));
if (ret) {
pr_err("qseecom_scm_call failed with err: %d\n", ret);
if (!qseecom.support_bus_scaling) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
} else {
__qseecom_add_bw_scale_down_timer(
QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
}
goto exit;
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt, data->client.sb_length,
ION_IOC_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto exit;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_INCOMPLETE:
pr_debug("qseos_result_incomplete\n");
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd fail with result: %d\n",
resp.result);
}
if (req.cmd_id == QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND) {
pr_warn("RPMB key status is 0x%x\n", resp.result);
if (put_user(resp.result,
(uint32_t __user *)req.resp_buf)) {
ret = -EINVAL;
goto exit;
}
ret = 0;
}
break;
case QSEOS_RESULT_FAILURE:
pr_err("scm call failed with resp.result: %d\n", resp.result);
ret = -EINVAL;
break;
default:
pr_err("Response result %d not supported\n",
resp.result);
ret = -EINVAL;
break;
}
if (!qseecom.support_bus_scaling) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
} else {
__qseecom_add_bw_scale_down_timer(
QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
}
exit:
return ret;
}
static int __validate_send_cmd_inputs(struct qseecom_dev_handle *data,
struct qseecom_send_cmd_req *req)
{
if (!data || !data->client.ihandle) {
pr_err("Client or client handle is not initialized\n");
return -EINVAL;
}
if (((req->resp_buf == NULL) && (req->resp_len != 0)) ||
(req->cmd_req_buf == NULL)) {
pr_err("cmd buffer or response buffer is null\n");
return -EINVAL;
}
if (((uintptr_t)req->cmd_req_buf <
data->client.user_virt_sb_base) ||
((uintptr_t)req->cmd_req_buf >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("cmd buffer address not within shared bufffer\n");
return -EINVAL;
}
if (((uintptr_t)req->resp_buf <
data->client.user_virt_sb_base) ||
((uintptr_t)req->resp_buf >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("response buffer address not within shared bufffer\n");
return -EINVAL;
}
if ((req->cmd_req_len == 0) ||
(req->cmd_req_len > data->client.sb_length) ||
(req->resp_len > data->client.sb_length)) {
pr_err("cmd buf length or response buf length not valid\n");
return -EINVAL;
}
if (req->cmd_req_len > UINT_MAX - req->resp_len) {
pr_err("Integer overflow detected in req_len & rsp_len\n");
return -EINVAL;
}
if ((req->cmd_req_len + req->resp_len) > data->client.sb_length) {
pr_debug("Not enough memory to fit cmd_buf.\n");
pr_debug("resp_buf. Required: %u, Available: %zu\n",
(req->cmd_req_len + req->resp_len),
data->client.sb_length);
return -ENOMEM;
}
if ((uintptr_t)req->cmd_req_buf > (ULONG_MAX - req->cmd_req_len)) {
pr_err("Integer overflow in req_len & cmd_req_buf\n");
return -EINVAL;
}
if ((uintptr_t)req->resp_buf > (ULONG_MAX - req->resp_len)) {
pr_err("Integer overflow in resp_len & resp_buf\n");
return -EINVAL;
}
if (data->client.user_virt_sb_base >
(ULONG_MAX - data->client.sb_length)) {
pr_err("Integer overflow in user_virt_sb_base & sb_length\n");
return -EINVAL;
}
if ((((uintptr_t)req->cmd_req_buf + req->cmd_req_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length)) ||
(((uintptr_t)req->resp_buf + req->resp_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length))) {
pr_err("cmd buf or resp buf is out of shared buffer region\n");
return -EINVAL;
}
return 0;
}
int __qseecom_process_reentrancy(struct qseecom_command_scm_resp *resp,
struct qseecom_registered_app_list *ptr_app,
struct qseecom_dev_handle *data)
{
int ret = 0;
switch (resp->result) {
case QSEOS_RESULT_BLOCKED_ON_LISTENER:
pr_warn("App(%d) %s is blocked on listener %d\n",
data->client.app_id, data->client.app_name,
resp->data);
ret = __qseecom_process_reentrancy_blocked_on_listener(
resp, ptr_app, data);
if (ret) {
pr_err("failed to process App(%d) %s is blocked on listener %d\n",
data->client.app_id, data->client.app_name, resp->data);
return ret;
}
case QSEOS_RESULT_INCOMPLETE:
qseecom.app_block_ref_cnt++;
ptr_app->app_blocked = true;
ret = __qseecom_reentrancy_process_incomplete_cmd(data, resp);
ptr_app->app_blocked = false;
qseecom.app_block_ref_cnt--;
wake_up_interruptible_all(&qseecom.app_block_wq);
if (ret)
pr_err("process_incomplete_cmd failed err: %d\n",
ret);
return ret;
case QSEOS_RESULT_SUCCESS:
return ret;
default:
pr_err("Response result %d not supported\n",
resp->result);
return -EINVAL;
}
}
static int __qseecom_send_cmd(struct qseecom_dev_handle *data,
struct qseecom_send_cmd_req *req)
{
int ret = 0;
int ret2 = 0;
u32 reqd_len_sb_in = 0;
struct qseecom_client_send_data_ireq send_data_req = {0};
struct qseecom_client_send_data_64bit_ireq send_data_req_64bit = {0};
struct qseecom_command_scm_resp resp;
unsigned long flags;
struct qseecom_registered_app_list *ptr_app;
bool found_app = false;
void *cmd_buf = NULL;
size_t cmd_len;
struct sglist_info *table = data->sglistinfo_ptr;
reqd_len_sb_in = req->cmd_req_len + req->resp_len;
/* find app_id & img_name from list */
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(ptr_app, &qseecom.registered_app_list_head,
list) {
if ((ptr_app->app_id == data->client.app_id) &&
(!strcmp(ptr_app->app_name, data->client.app_name))) {
found_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags);
if (!found_app) {
pr_err("app_id %d (%s) is not found\n", data->client.app_id,
(char *)data->client.app_name);
return -ENOENT;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
send_data_req.app_id = data->client.app_id;
send_data_req.req_ptr = (uint32_t)(__qseecom_uvirt_to_kphys(
data, (uintptr_t)req->cmd_req_buf));
send_data_req.req_len = req->cmd_req_len;
send_data_req.rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys(
data, (uintptr_t)req->resp_buf));
send_data_req.rsp_len = req->resp_len;
send_data_req.sglistinfo_ptr =
(uint32_t)virt_to_phys(table);
send_data_req.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
cmd_buf = (void *)&send_data_req;
cmd_len = sizeof(struct qseecom_client_send_data_ireq);
} else {
send_data_req_64bit.app_id = data->client.app_id;
send_data_req_64bit.req_ptr = __qseecom_uvirt_to_kphys(data,
(uintptr_t)req->cmd_req_buf);
send_data_req_64bit.req_len = req->cmd_req_len;
send_data_req_64bit.rsp_ptr = __qseecom_uvirt_to_kphys(data,
(uintptr_t)req->resp_buf);
send_data_req_64bit.rsp_len = req->resp_len;
/* check if 32bit app's phys_addr region is under 4GB.*/
if ((data->client.app_arch == ELFCLASS32) &&
((send_data_req_64bit.req_ptr >=
PHY_ADDR_4G - send_data_req_64bit.req_len) ||
(send_data_req_64bit.rsp_ptr >=
PHY_ADDR_4G - send_data_req_64bit.rsp_len))){
pr_err("32bit app %s PA exceeds 4G: req_ptr=%llx, req_len=%x, rsp_ptr=%llx, rsp_len=%x\n",
data->client.app_name,
send_data_req_64bit.req_ptr,
send_data_req_64bit.req_len,
send_data_req_64bit.rsp_ptr,
send_data_req_64bit.rsp_len);
return -EFAULT;
}
send_data_req_64bit.sglistinfo_ptr =
(uint64_t)virt_to_phys(table);
send_data_req_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
cmd_buf = (void *)&send_data_req_64bit;
cmd_len = sizeof(struct qseecom_client_send_data_64bit_ireq);
}
if (qseecom.whitelist_support == false || data->use_legacy_cmd == true)
*(uint32_t *)cmd_buf = QSEOS_CLIENT_SEND_DATA_COMMAND;
else
*(uint32_t *)cmd_buf = QSEOS_CLIENT_SEND_DATA_COMMAND_WHITELIST;
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt,
reqd_len_sb_in,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
__qseecom_reentrancy_check_if_this_app_blocked(ptr_app);
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call() failed with err: %d (app_id = %d)\n",
ret, data->client.app_id);
goto exit;
}
if (qseecom.qsee_reentrancy_support) {
ret = __qseecom_process_reentrancy(&resp, ptr_app, data);
if (ret)
goto exit;
} else {
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd failed err: %d\n",
ret);
goto exit;
}
} else {
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("Response result %d not supported\n",
resp.result);
ret = -EINVAL;
goto exit;
}
}
}
exit:
ret2 = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt, data->client.sb_length,
ION_IOC_INV_CACHES);
if (ret2) {
pr_err("cache operation failed %d\n", ret2);
return ret2;
}
return ret;
}
static int qseecom_send_cmd(struct qseecom_dev_handle *data, void __user *argp)
{
int ret = 0;
struct qseecom_send_cmd_req req;
ret = copy_from_user(&req, argp, sizeof(req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (__validate_send_cmd_inputs(data, &req))
return -EINVAL;
ret = __qseecom_send_cmd(data, &req);
if (ret)
return ret;
return ret;
}
int __boundary_checks_offset(struct qseecom_send_modfd_cmd_req *req,
struct qseecom_send_modfd_listener_resp *lstnr_resp,
struct qseecom_dev_handle *data, int i) {
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(req->ifd_data[i].fd > 0)) {
if ((req->cmd_req_len < sizeof(uint32_t)) ||
(req->ifd_data[i].cmd_buf_offset >
req->cmd_req_len - sizeof(uint32_t))) {
pr_err("Invalid offset (req len) 0x%x\n",
req->ifd_data[i].cmd_buf_offset);
return -EINVAL;
}
} else if ((data->type == QSEECOM_LISTENER_SERVICE) &&
(lstnr_resp->ifd_data[i].fd > 0)) {
if ((lstnr_resp->resp_len < sizeof(uint32_t)) ||
(lstnr_resp->ifd_data[i].cmd_buf_offset >
lstnr_resp->resp_len - sizeof(uint32_t))) {
pr_err("Invalid offset (lstnr resp len) 0x%x\n",
lstnr_resp->ifd_data[i].cmd_buf_offset);
return -EINVAL;
}
}
return 0;
}
static int __qseecom_update_cmd_buf(void *msg, bool cleanup,
struct qseecom_dev_handle *data)
{
struct ion_handle *ihandle;
char *field;
int ret = 0;
int i = 0;
uint32_t len = 0;
struct scatterlist *sg;
struct qseecom_send_modfd_cmd_req *req = NULL;
struct qseecom_send_modfd_listener_resp *lstnr_resp = NULL;
struct qseecom_registered_listener_list *this_lstnr = NULL;
uint32_t offset;
struct sg_table *sg_ptr;
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(data->type != QSEECOM_CLIENT_APP))
return -EFAULT;
if (msg == NULL) {
pr_err("Invalid address\n");
return -EINVAL;
}
if (data->type == QSEECOM_LISTENER_SERVICE) {
lstnr_resp = (struct qseecom_send_modfd_listener_resp *)msg;
this_lstnr = __qseecom_find_svc(data->listener.id);
if (IS_ERR_OR_NULL(this_lstnr)) {
pr_err("Invalid listener ID\n");
return -ENOMEM;
}
} else {
req = (struct qseecom_send_modfd_cmd_req *)msg;
}
for (i = 0; i < MAX_ION_FD; i++) {
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(req->ifd_data[i].fd > 0)) {
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
req->ifd_data[i].fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client can't retrieve the handle\n");
return -ENOMEM;
}
field = (char *) req->cmd_req_buf +
req->ifd_data[i].cmd_buf_offset;
} else if ((data->type == QSEECOM_LISTENER_SERVICE) &&
(lstnr_resp->ifd_data[i].fd > 0)) {
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
lstnr_resp->ifd_data[i].fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client can't retrieve the handle\n");
return -ENOMEM;
}
field = lstnr_resp->resp_buf_ptr +
lstnr_resp->ifd_data[i].cmd_buf_offset;
} else {
continue;
}
/* Populate the cmd data structure with the phys_addr */
sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle);
if (IS_ERR_OR_NULL(sg_ptr)) {
pr_err("IOn client could not retrieve sg table\n");
goto err;
}
if (sg_ptr->nents == 0) {
pr_err("Num of scattered entries is 0\n");
goto err;
}
if (sg_ptr->nents > QSEECOM_MAX_SG_ENTRY) {
pr_err("Num of scattered entries");
pr_err(" (%d) is greater than max supported %d\n",
sg_ptr->nents, QSEECOM_MAX_SG_ENTRY);
goto err;
}
sg = sg_ptr->sgl;
if (sg_ptr->nents == 1) {
uint32_t *update;
if (__boundary_checks_offset(req, lstnr_resp, data, i))
goto err;
if ((data->type == QSEECOM_CLIENT_APP &&
(data->client.app_arch == ELFCLASS32 ||
data->client.app_arch == ELFCLASS64)) ||
(data->type == QSEECOM_LISTENER_SERVICE)) {
/*
* Check if sg list phy add region is under 4GB
*/
if ((qseecom.qsee_version >= QSEE_VERSION_40) &&
(!cleanup) &&
((uint64_t)sg_dma_address(sg_ptr->sgl)
>= PHY_ADDR_4G - sg->length)) {
pr_err("App %s sgl PA exceeds 4G: phy_addr=%pKad, len=%x\n",
data->client.app_name,
&(sg_dma_address(sg_ptr->sgl)),
sg->length);
goto err;
}
update = (uint32_t *) field;
*update = cleanup ? 0 :
(uint32_t)sg_dma_address(sg_ptr->sgl);
} else {
pr_err("QSEE app arch %u is not supported\n",
data->client.app_arch);
goto err;
}
len += (uint32_t)sg->length;
} else {
struct qseecom_sg_entry *update;
int j = 0;
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(req->ifd_data[i].fd > 0)) {
if ((req->cmd_req_len <
SG_ENTRY_SZ * sg_ptr->nents) ||
(req->ifd_data[i].cmd_buf_offset >
(req->cmd_req_len -
SG_ENTRY_SZ * sg_ptr->nents))) {
pr_err("Invalid offset = 0x%x\n",
req->ifd_data[i].cmd_buf_offset);
goto err;
}
} else if ((data->type == QSEECOM_LISTENER_SERVICE) &&
(lstnr_resp->ifd_data[i].fd > 0)) {
if ((lstnr_resp->resp_len <
SG_ENTRY_SZ * sg_ptr->nents) ||
(lstnr_resp->ifd_data[i].cmd_buf_offset >
(lstnr_resp->resp_len -
SG_ENTRY_SZ * sg_ptr->nents))) {
goto err;
}
}
if ((data->type == QSEECOM_CLIENT_APP &&
(data->client.app_arch == ELFCLASS32 ||
data->client.app_arch == ELFCLASS64)) ||
(data->type == QSEECOM_LISTENER_SERVICE)) {
update = (struct qseecom_sg_entry *)field;
for (j = 0; j < sg_ptr->nents; j++) {
/*
* Check if sg list PA is under 4GB
*/
if ((qseecom.qsee_version >=
QSEE_VERSION_40) &&
(!cleanup) &&
((uint64_t)(sg_dma_address(sg))
>= PHY_ADDR_4G - sg->length)) {
pr_err("App %s sgl PA exceeds 4G: phy_addr=%pKad, len=%x\n",
data->client.app_name,
&(sg_dma_address(sg)),
sg->length);
goto err;
}
update->phys_addr = cleanup ? 0 :
(uint32_t)sg_dma_address(sg);
update->len = cleanup ? 0 : sg->length;
update++;
len += sg->length;
sg = sg_next(sg);
}
} else {
pr_err("QSEE app arch %u is not supported\n",
data->client.app_arch);
goto err;
}
}
if (cleanup) {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, len,
ION_IOC_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
} else {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, len,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
if (data->type == QSEECOM_CLIENT_APP) {
offset = req->ifd_data[i].cmd_buf_offset;
data->sglistinfo_ptr[i].indexAndFlags =
SGLISTINFO_SET_INDEX_FLAG(
(sg_ptr->nents == 1), 0, offset);
data->sglistinfo_ptr[i].sizeOrCount =
(sg_ptr->nents == 1) ?
sg->length : sg_ptr->nents;
data->sglist_cnt = i + 1;
} else {
offset = (lstnr_resp->ifd_data[i].cmd_buf_offset
+ (uintptr_t)lstnr_resp->resp_buf_ptr -
(uintptr_t)this_lstnr->sb_virt);
this_lstnr->sglistinfo_ptr[i].indexAndFlags =
SGLISTINFO_SET_INDEX_FLAG(
(sg_ptr->nents == 1), 0, offset);
this_lstnr->sglistinfo_ptr[i].sizeOrCount =
(sg_ptr->nents == 1) ?
sg->length : sg_ptr->nents;
this_lstnr->sglist_cnt = i + 1;
}
}
/* Deallocate the handle */
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
}
return ret;
err:
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
return -ENOMEM;
}
static int __qseecom_allocate_sg_list_buffer(struct qseecom_dev_handle *data,
char *field, uint32_t fd_idx, struct sg_table *sg_ptr)
{
struct scatterlist *sg = sg_ptr->sgl;
struct qseecom_sg_entry_64bit *sg_entry;
struct qseecom_sg_list_buf_hdr_64bit *buf_hdr;
void *buf;
uint i;
size_t size;
dma_addr_t coh_pmem;
if (fd_idx >= MAX_ION_FD) {
pr_err("fd_idx [%d] is invalid\n", fd_idx);
return -ENOMEM;
}
buf_hdr = (struct qseecom_sg_list_buf_hdr_64bit *)field;
memset((void *)buf_hdr, 0, QSEECOM_SG_LIST_BUF_HDR_SZ_64BIT);
/* Allocate a contiguous kernel buffer */
size = sg_ptr->nents * SG_ENTRY_SZ_64BIT;
size = (size + PAGE_SIZE) & PAGE_MASK;
buf = dma_alloc_coherent(qseecom.pdev,
size, &coh_pmem, GFP_KERNEL);
if (buf == NULL) {
pr_err("failed to alloc memory for sg buf\n");
return -ENOMEM;
}
/* update qseecom_sg_list_buf_hdr_64bit */
buf_hdr->version = QSEECOM_SG_LIST_BUF_FORMAT_VERSION_2;
buf_hdr->new_buf_phys_addr = coh_pmem;
buf_hdr->nents_total = sg_ptr->nents;
/* save the left sg entries into new allocated buf */
sg_entry = (struct qseecom_sg_entry_64bit *)buf;
for (i = 0; i < sg_ptr->nents; i++) {
sg_entry->phys_addr = (uint64_t)sg_dma_address(sg);
sg_entry->len = sg->length;
sg_entry++;
sg = sg_next(sg);
}
data->client.sec_buf_fd[fd_idx].is_sec_buf_fd = true;
data->client.sec_buf_fd[fd_idx].vbase = buf;
data->client.sec_buf_fd[fd_idx].pbase = coh_pmem;
data->client.sec_buf_fd[fd_idx].size = size;
return 0;
}
static int __qseecom_update_cmd_buf_64(void *msg, bool cleanup,
struct qseecom_dev_handle *data)
{
struct ion_handle *ihandle;
char *field;
int ret = 0;
int i = 0;
uint32_t len = 0;
struct scatterlist *sg;
struct qseecom_send_modfd_cmd_req *req = NULL;
struct qseecom_send_modfd_listener_resp *lstnr_resp = NULL;
struct qseecom_registered_listener_list *this_lstnr = NULL;
uint32_t offset;
struct sg_table *sg_ptr;
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(data->type != QSEECOM_CLIENT_APP))
return -EFAULT;
if (msg == NULL) {
pr_err("Invalid address\n");
return -EINVAL;
}
if (data->type == QSEECOM_LISTENER_SERVICE) {
lstnr_resp = (struct qseecom_send_modfd_listener_resp *)msg;
this_lstnr = __qseecom_find_svc(data->listener.id);
if (IS_ERR_OR_NULL(this_lstnr)) {
pr_err("Invalid listener ID\n");
return -ENOMEM;
}
} else {
req = (struct qseecom_send_modfd_cmd_req *)msg;
}
for (i = 0; i < MAX_ION_FD; i++) {
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(req->ifd_data[i].fd > 0)) {
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
req->ifd_data[i].fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client can't retrieve the handle\n");
return -ENOMEM;
}
field = (char *) req->cmd_req_buf +
req->ifd_data[i].cmd_buf_offset;
} else if ((data->type == QSEECOM_LISTENER_SERVICE) &&
(lstnr_resp->ifd_data[i].fd > 0)) {
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
lstnr_resp->ifd_data[i].fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client can't retrieve the handle\n");
return -ENOMEM;
}
field = lstnr_resp->resp_buf_ptr +
lstnr_resp->ifd_data[i].cmd_buf_offset;
} else {
continue;
}
/* Populate the cmd data structure with the phys_addr */
sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle);
if (IS_ERR_OR_NULL(sg_ptr)) {
pr_err("IOn client could not retrieve sg table\n");
goto err;
}
if (sg_ptr->nents == 0) {
pr_err("Num of scattered entries is 0\n");
goto err;
}
if (sg_ptr->nents > QSEECOM_MAX_SG_ENTRY) {
pr_warn("Num of scattered entries");
pr_warn(" (%d) is greater than %d\n",
sg_ptr->nents, QSEECOM_MAX_SG_ENTRY);
if (cleanup) {
if (data->client.sec_buf_fd[i].is_sec_buf_fd &&
data->client.sec_buf_fd[i].vbase)
dma_free_coherent(qseecom.pdev,
data->client.sec_buf_fd[i].size,
data->client.sec_buf_fd[i].vbase,
data->client.sec_buf_fd[i].pbase);
} else {
ret = __qseecom_allocate_sg_list_buffer(data,
field, i, sg_ptr);
if (ret) {
pr_err("Failed to allocate sg list buffer\n");
goto err;
}
}
len = QSEECOM_SG_LIST_BUF_HDR_SZ_64BIT;
sg = sg_ptr->sgl;
goto cleanup;
}
sg = sg_ptr->sgl;
if (sg_ptr->nents == 1) {
uint64_t *update_64bit;
if (__boundary_checks_offset(req, lstnr_resp, data, i))
goto err;
/* 64bit app uses 64bit address */
update_64bit = (uint64_t *) field;
*update_64bit = cleanup ? 0 :
(uint64_t)sg_dma_address(sg_ptr->sgl);
len += (uint32_t)sg->length;
} else {
struct qseecom_sg_entry_64bit *update_64bit;
int j = 0;
if ((data->type != QSEECOM_LISTENER_SERVICE) &&
(req->ifd_data[i].fd > 0)) {
if ((req->cmd_req_len <
SG_ENTRY_SZ_64BIT * sg_ptr->nents) ||
(req->ifd_data[i].cmd_buf_offset >
(req->cmd_req_len -
SG_ENTRY_SZ_64BIT * sg_ptr->nents))) {
pr_err("Invalid offset = 0x%x\n",
req->ifd_data[i].cmd_buf_offset);
goto err;
}
} else if ((data->type == QSEECOM_LISTENER_SERVICE) &&
(lstnr_resp->ifd_data[i].fd > 0)) {
if ((lstnr_resp->resp_len <
SG_ENTRY_SZ_64BIT * sg_ptr->nents) ||
(lstnr_resp->ifd_data[i].cmd_buf_offset >
(lstnr_resp->resp_len -
SG_ENTRY_SZ_64BIT * sg_ptr->nents))) {
goto err;
}
}
/* 64bit app uses 64bit address */
update_64bit = (struct qseecom_sg_entry_64bit *)field;
for (j = 0; j < sg_ptr->nents; j++) {
update_64bit->phys_addr = cleanup ? 0 :
(uint64_t)sg_dma_address(sg);
update_64bit->len = cleanup ? 0 :
(uint32_t)sg->length;
update_64bit++;
len += sg->length;
sg = sg_next(sg);
}
}
cleanup:
if (cleanup) {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, len,
ION_IOC_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
} else {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, len,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
if (data->type == QSEECOM_CLIENT_APP) {
offset = req->ifd_data[i].cmd_buf_offset;
data->sglistinfo_ptr[i].indexAndFlags =
SGLISTINFO_SET_INDEX_FLAG(
(sg_ptr->nents == 1), 1, offset);
data->sglistinfo_ptr[i].sizeOrCount =
(sg_ptr->nents == 1) ?
sg->length : sg_ptr->nents;
data->sglist_cnt = i + 1;
} else {
offset = (lstnr_resp->ifd_data[i].cmd_buf_offset
+ (uintptr_t)lstnr_resp->resp_buf_ptr -
(uintptr_t)this_lstnr->sb_virt);
this_lstnr->sglistinfo_ptr[i].indexAndFlags =
SGLISTINFO_SET_INDEX_FLAG(
(sg_ptr->nents == 1), 1, offset);
this_lstnr->sglistinfo_ptr[i].sizeOrCount =
(sg_ptr->nents == 1) ?
sg->length : sg_ptr->nents;
this_lstnr->sglist_cnt = i + 1;
}
}
/* Deallocate the handle */
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
}
return ret;
err:
for (i = 0; i < MAX_ION_FD; i++)
if (data->client.sec_buf_fd[i].is_sec_buf_fd &&
data->client.sec_buf_fd[i].vbase)
dma_free_coherent(qseecom.pdev,
data->client.sec_buf_fd[i].size,
data->client.sec_buf_fd[i].vbase,
data->client.sec_buf_fd[i].pbase);
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
return -ENOMEM;
}
static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data,
void __user *argp,
bool is_64bit_addr)
{
int ret = 0;
int i;
struct qseecom_send_modfd_cmd_req req;
struct qseecom_send_cmd_req send_cmd_req;
ret = copy_from_user(&req, argp, sizeof(req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
send_cmd_req.cmd_req_buf = req.cmd_req_buf;
send_cmd_req.cmd_req_len = req.cmd_req_len;
send_cmd_req.resp_buf = req.resp_buf;
send_cmd_req.resp_len = req.resp_len;
if (__validate_send_cmd_inputs(data, &send_cmd_req))
return -EINVAL;
/* validate offsets */
for (i = 0; i < MAX_ION_FD; i++) {
if (req.ifd_data[i].cmd_buf_offset >= req.cmd_req_len) {
pr_err("Invalid offset %d = 0x%x\n",
i, req.ifd_data[i].cmd_buf_offset);
return -EINVAL;
}
}
req.cmd_req_buf = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req.cmd_req_buf);
req.resp_buf = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req.resp_buf);
if (!is_64bit_addr) {
ret = __qseecom_update_cmd_buf(&req, false, data);
if (ret)
return ret;
ret = __qseecom_send_cmd(data, &send_cmd_req);
if (ret)
return ret;
ret = __qseecom_update_cmd_buf(&req, true, data);
if (ret)
return ret;
} else {
ret = __qseecom_update_cmd_buf_64(&req, false, data);
if (ret)
return ret;
ret = __qseecom_send_cmd(data, &send_cmd_req);
if (ret)
return ret;
ret = __qseecom_update_cmd_buf_64(&req, true, data);
if (ret)
return ret;
}
return ret;
}
static int qseecom_send_modfd_cmd(struct qseecom_dev_handle *data,
void __user *argp)
{
return __qseecom_send_modfd_cmd(data, argp, false);
}
static int qseecom_send_modfd_cmd_64(struct qseecom_dev_handle *data,
void __user *argp)
{
return __qseecom_send_modfd_cmd(data, argp, true);
}
static int __qseecom_listener_has_rcvd_req(struct qseecom_dev_handle *data,
struct qseecom_registered_listener_list *svc)
{
int ret;
ret = (svc->rcv_req_flag == 1);
return ret || data->abort || svc->abort;
}
static int qseecom_receive_req(struct qseecom_dev_handle *data)
{
int ret = 0;
struct qseecom_registered_listener_list *this_lstnr;
this_lstnr = __qseecom_find_svc(data->listener.id);
if (!this_lstnr) {
pr_err("Invalid listener ID\n");
return -ENODATA;
}
if (this_lstnr->rcv_req_flag == -1)
this_lstnr->rcv_req_flag = 0;
while (1) {
if (wait_event_interruptible(this_lstnr->rcv_req_wq,
__qseecom_listener_has_rcvd_req(data,
this_lstnr))) {
pr_warn("Interrupted: exiting Listener Service = %d\n",
(uint32_t)data->listener.id);
/* woken up for different reason */
this_lstnr->rcv_req_flag = -1;
return -ERESTARTSYS;
}
if (data->abort || this_lstnr->abort) {
pr_err("Aborting Listener Service = %d\n",
(uint32_t)data->listener.id);
return -ENODEV;
}
this_lstnr->rcv_req_flag = 0;
break;
}
return ret;
}
static bool __qseecom_is_fw_image_valid(const struct firmware *fw_entry)
{
unsigned char app_arch = 0;
struct elf32_hdr *ehdr;
struct elf64_hdr *ehdr64;
app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS);
switch (app_arch) {
case ELFCLASS32: {
ehdr = (struct elf32_hdr *)fw_entry->data;
if (fw_entry->size < sizeof(*ehdr)) {
pr_err("%s: Not big enough to be an elf32 header\n",
qseecom.pdev->init_name);
return false;
}
if (memcmp(ehdr->e_ident, ELFMAG, SELFMAG)) {
pr_err("%s: Not an elf32 header\n",
qseecom.pdev->init_name);
return false;
}
if (ehdr->e_phnum == 0) {
pr_err("%s: No loadable segments\n",
qseecom.pdev->init_name);
return false;
}
if (sizeof(struct elf32_phdr) * ehdr->e_phnum +
sizeof(struct elf32_hdr) > fw_entry->size) {
pr_err("%s: Program headers not within mdt\n",
qseecom.pdev->init_name);
return false;
}
break;
}
case ELFCLASS64: {
ehdr64 = (struct elf64_hdr *)fw_entry->data;
if (fw_entry->size < sizeof(*ehdr64)) {
pr_err("%s: Not big enough to be an elf64 header\n",
qseecom.pdev->init_name);
return false;
}
if (memcmp(ehdr64->e_ident, ELFMAG, SELFMAG)) {
pr_err("%s: Not an elf64 header\n",
qseecom.pdev->init_name);
return false;
}
if (ehdr64->e_phnum == 0) {
pr_err("%s: No loadable segments\n",
qseecom.pdev->init_name);
return false;
}
if (sizeof(struct elf64_phdr) * ehdr64->e_phnum +
sizeof(struct elf64_hdr) > fw_entry->size) {
pr_err("%s: Program headers not within mdt\n",
qseecom.pdev->init_name);
return false;
}
break;
}
default: {
pr_err("QSEE app arch %u is not supported\n", app_arch);
return false;
}
}
return true;
}
static int __qseecom_get_fw_size(const char *appname, uint32_t *fw_size,
uint32_t *app_arch)
{
int ret = -1;
int i = 0, rc = 0;
const struct firmware *fw_entry = NULL;
char fw_name[MAX_APP_NAME_SIZE];
struct elf32_hdr *ehdr;
struct elf64_hdr *ehdr64;
int num_images = 0;
snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname);
rc = request_firmware(&fw_entry, fw_name, qseecom.pdev);
if (rc) {
pr_err("error with request_firmware\n");
ret = -EIO;
goto err;
}
if (!__qseecom_is_fw_image_valid(fw_entry)) {
ret = -EIO;
goto err;
}
*app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS);
*fw_size = fw_entry->size;
if (*app_arch == ELFCLASS32) {
ehdr = (struct elf32_hdr *)fw_entry->data;
num_images = ehdr->e_phnum;
} else if (*app_arch == ELFCLASS64) {
ehdr64 = (struct elf64_hdr *)fw_entry->data;
num_images = ehdr64->e_phnum;
} else {
pr_err("QSEE %s app, arch %u is not supported\n",
appname, *app_arch);
ret = -EIO;
goto err;
}
pr_debug("QSEE %s app, arch %u\n", appname, *app_arch);
release_firmware(fw_entry);
fw_entry = NULL;
for (i = 0; i < num_images; i++) {
memset(fw_name, 0, sizeof(fw_name));
snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i);
ret = request_firmware(&fw_entry, fw_name, qseecom.pdev);
if (ret)
goto err;
if (*fw_size > U32_MAX - fw_entry->size) {
pr_err("QSEE %s app file size overflow\n", appname);
ret = -EINVAL;
goto err;
}
*fw_size += fw_entry->size;
release_firmware(fw_entry);
fw_entry = NULL;
}
return ret;
err:
if (fw_entry)
release_firmware(fw_entry);
*fw_size = 0;
return ret;
}
static int __qseecom_get_fw_data(const char *appname, u8 *img_data,
uint32_t fw_size,
struct qseecom_load_app_ireq *load_req)
{
int ret = -1;
int i = 0, rc = 0;
const struct firmware *fw_entry = NULL;
char fw_name[MAX_APP_NAME_SIZE];
u8 *img_data_ptr = img_data;
struct elf32_hdr *ehdr;
struct elf64_hdr *ehdr64;
int num_images = 0;
unsigned char app_arch = 0;
snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname);
rc = request_firmware(&fw_entry, fw_name, qseecom.pdev);
if (rc) {
ret = -EIO;
goto err;
}
load_req->img_len = fw_entry->size;
if (load_req->img_len > fw_size) {
pr_err("app %s size %zu is larger than buf size %u\n",
appname, fw_entry->size, fw_size);
ret = -EINVAL;
goto err;
}
memcpy(img_data_ptr, fw_entry->data, fw_entry->size);
img_data_ptr = img_data_ptr + fw_entry->size;
load_req->mdt_len = fw_entry->size; /*Get MDT LEN*/
app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS);
if (app_arch == ELFCLASS32) {
ehdr = (struct elf32_hdr *)fw_entry->data;
num_images = ehdr->e_phnum;
} else if (app_arch == ELFCLASS64) {
ehdr64 = (struct elf64_hdr *)fw_entry->data;
num_images = ehdr64->e_phnum;
} else {
pr_err("QSEE %s app, arch %u is not supported\n",
appname, app_arch);
ret = -EIO;
goto err;
}
release_firmware(fw_entry);
fw_entry = NULL;
for (i = 0; i < num_images; i++) {
snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i);
ret = request_firmware(&fw_entry, fw_name, qseecom.pdev);
if (ret) {
pr_err("Failed to locate blob %s\n", fw_name);
goto err;
}
if ((fw_entry->size > U32_MAX - load_req->img_len) ||
(fw_entry->size + load_req->img_len > fw_size)) {
pr_err("Invalid file size for %s\n", fw_name);
ret = -EINVAL;
goto err;
}
memcpy(img_data_ptr, fw_entry->data, fw_entry->size);
img_data_ptr = img_data_ptr + fw_entry->size;
load_req->img_len += fw_entry->size;
release_firmware(fw_entry);
fw_entry = NULL;
}
return ret;
err:
release_firmware(fw_entry);
return ret;
}
static int __qseecom_allocate_img_data(struct ion_handle **pihandle,
u8 **data, uint32_t fw_size, ion_phys_addr_t *paddr)
{
size_t len = 0;
int ret = 0;
ion_phys_addr_t pa;
struct ion_handle *ihandle = NULL;
u8 *img_data = NULL;
int retry = 0;
do {
if (retry++)
msleep(QSEECOM_TA_ION_ALLOCATE_DELAY);
ihandle = ion_alloc(qseecom.ion_clnt, fw_size,
SZ_4K, ION_HEAP(ION_QSECOM_TA_HEAP_ID), 0);
} while (IS_ERR_OR_NULL(ihandle) &&
(retry <= QSEECOM_TA_ION_ALLOCATE_MAX_ATTEMP));
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("ION alloc failed\n");
return -ENOMEM;
}
img_data = (u8 *)ion_map_kernel(qseecom.ion_clnt,
ihandle);
if (IS_ERR_OR_NULL(img_data)) {
pr_err("ION memory mapping for image loading failed\n");
ret = -ENOMEM;
goto exit_ion_free;
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len);
if (ret) {
pr_err("physical memory retrieval failure\n");
ret = -EIO;
goto exit_ion_unmap_kernel;
}
*pihandle = ihandle;
*data = img_data;
*paddr = pa;
return ret;
exit_ion_unmap_kernel:
ion_unmap_kernel(qseecom.ion_clnt, ihandle);
exit_ion_free:
ion_free(qseecom.ion_clnt, ihandle);
ihandle = NULL;
return ret;
}
static void __qseecom_free_img_data(struct ion_handle **ihandle)
{
ion_unmap_kernel(qseecom.ion_clnt, *ihandle);
ion_free(qseecom.ion_clnt, *ihandle);
*ihandle = NULL;
}
static int __qseecom_load_fw(struct qseecom_dev_handle *data, char *appname,
uint32_t *app_id)
{
int ret = -1;
uint32_t fw_size = 0;
struct qseecom_load_app_ireq load_req = {0, 0, 0, 0};
struct qseecom_load_app_64bit_ireq load_req_64bit = {0, 0, 0, 0};
struct qseecom_command_scm_resp resp;
u8 *img_data = NULL;
ion_phys_addr_t pa = 0;
struct ion_handle *ihandle = NULL;
void *cmd_buf = NULL;
size_t cmd_len;
uint32_t app_arch = 0;
if (!data || !appname || !app_id) {
pr_err("Null pointer to data or appname or appid\n");
return -EINVAL;
}
*app_id = 0;
if (__qseecom_get_fw_size(appname, &fw_size, &app_arch))
return -EIO;
data->client.app_arch = app_arch;
/* Check and load cmnlib */
if (qseecom.qsee_version > QSEEE_VERSION_00) {
if (!qseecom.commonlib_loaded && app_arch == ELFCLASS32) {
ret = qseecom_load_commonlib_image(data, "cmnlib");
if (ret) {
pr_err("failed to load cmnlib\n");
return -EIO;
}
qseecom.commonlib_loaded = true;
pr_debug("cmnlib is loaded\n");
}
if (!qseecom.commonlib64_loaded && app_arch == ELFCLASS64) {
ret = qseecom_load_commonlib_image(data, "cmnlib64");
if (ret) {
pr_err("failed to load cmnlib64\n");
return -EIO;
}
qseecom.commonlib64_loaded = true;
pr_debug("cmnlib64 is loaded\n");
}
}
ret = __qseecom_allocate_img_data(&ihandle, &img_data, fw_size, &pa);
if (ret)
return ret;
ret = __qseecom_get_fw_data(appname, img_data, fw_size, &load_req);
if (ret) {
ret = -EIO;
goto exit_free_img_data;
}
/* Populate the load_req parameters */
if (qseecom.qsee_version < QSEE_VERSION_40) {
load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND;
load_req.mdt_len = load_req.mdt_len;
load_req.img_len = load_req.img_len;
strlcpy(load_req.app_name, appname, MAX_APP_NAME_SIZE);
load_req.phy_addr = (uint32_t)pa;
cmd_buf = (void *)&load_req;
cmd_len = sizeof(struct qseecom_load_app_ireq);
} else {
load_req_64bit.qsee_cmd_id = QSEOS_APP_START_COMMAND;
load_req_64bit.mdt_len = load_req.mdt_len;
load_req_64bit.img_len = load_req.img_len;
strlcpy(load_req_64bit.app_name, appname, MAX_APP_NAME_SIZE);
load_req_64bit.phy_addr = (uint64_t)pa;
cmd_buf = (void *)&load_req_64bit;
cmd_len = sizeof(struct qseecom_load_app_64bit_ireq);
}
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM);
mutex_unlock(&qsee_bw_mutex);
if (ret) {
ret = -EIO;
goto exit_free_img_data;
}
}
ret = __qseecom_enable_clk_scale_up(data);
if (ret) {
ret = -EIO;
goto exit_unregister_bus_bw_need;
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle,
img_data, fw_size,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto exit_disable_clk_vote;
}
/* SCM_CALL to load the image */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to load failed : ret %d\n", ret);
ret = -EIO;
goto exit_disable_clk_vote;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
*app_id = resp.data;
break;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret)
pr_err("process_incomplete_cmd FAILED\n");
else
*app_id = resp.data;
break;
case QSEOS_RESULT_FAILURE:
pr_err("scm call failed with response QSEOS_RESULT FAILURE\n");
break;
default:
pr_err("scm call return unknown response %d\n", resp.result);
ret = -EINVAL;
break;
}
exit_disable_clk_vote:
__qseecom_disable_clk_scale_down(data);
exit_unregister_bus_bw_need:
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
qseecom_unregister_bus_bandwidth_needs(data);
mutex_unlock(&qsee_bw_mutex);
}
exit_free_img_data:
__qseecom_free_img_data(&ihandle);
return ret;
}
static int qseecom_load_commonlib_image(struct qseecom_dev_handle *data,
char *cmnlib_name)
{
int ret = 0;
uint32_t fw_size = 0;
struct qseecom_load_app_ireq load_req = {0, 0, 0, 0};
struct qseecom_load_app_64bit_ireq load_req_64bit = {0, 0, 0, 0};
struct qseecom_command_scm_resp resp;
u8 *img_data = NULL;
ion_phys_addr_t pa = 0;
void *cmd_buf = NULL;
size_t cmd_len;
uint32_t app_arch = 0;
struct ion_handle *cmnlib_ion_handle = NULL;
if (!cmnlib_name) {
pr_err("cmnlib_name is NULL\n");
return -EINVAL;
}
if (strlen(cmnlib_name) >= MAX_APP_NAME_SIZE) {
pr_err("The cmnlib_name (%s) with length %zu is not valid\n",
cmnlib_name, strlen(cmnlib_name));
return -EINVAL;
}
if (__qseecom_get_fw_size(cmnlib_name, &fw_size, &app_arch))
return -EIO;
ret = __qseecom_allocate_img_data(&cmnlib_ion_handle,
&img_data, fw_size, &pa);
if (ret)
return -EIO;
ret = __qseecom_get_fw_data(cmnlib_name, img_data, fw_size, &load_req);
if (ret) {
ret = -EIO;
goto exit_free_img_data;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
load_req.phy_addr = (uint32_t)pa;
load_req.qsee_cmd_id = QSEOS_LOAD_SERV_IMAGE_COMMAND;
cmd_buf = (void *)&load_req;
cmd_len = sizeof(struct qseecom_load_lib_image_ireq);
} else {
load_req_64bit.phy_addr = (uint64_t)pa;
load_req_64bit.qsee_cmd_id = QSEOS_LOAD_SERV_IMAGE_COMMAND;
load_req_64bit.img_len = load_req.img_len;
load_req_64bit.mdt_len = load_req.mdt_len;
cmd_buf = (void *)&load_req_64bit;
cmd_len = sizeof(struct qseecom_load_lib_image_64bit_ireq);
}
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM);
mutex_unlock(&qsee_bw_mutex);
if (ret) {
ret = -EIO;
goto exit_free_img_data;
}
}
/* Vote for the SFPB clock */
ret = __qseecom_enable_clk_scale_up(data);
if (ret) {
ret = -EIO;
goto exit_unregister_bus_bw_need;
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, cmnlib_ion_handle,
img_data, fw_size,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto exit_disable_clk_vote;
}
/* SCM_CALL to load the image */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to load failed : ret %d\n", ret);
ret = -EIO;
goto exit_disable_clk_vote;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_FAILURE:
pr_err("scm call failed w/response result%d\n", resp.result);
ret = -EINVAL;
goto exit_disable_clk_vote;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd failed err: %d\n", ret);
goto exit_disable_clk_vote;
}
break;
default:
pr_err("scm call return unknown response %d\n", resp.result);
ret = -EINVAL;
goto exit_disable_clk_vote;
}
exit_disable_clk_vote:
__qseecom_disable_clk_scale_down(data);
exit_unregister_bus_bw_need:
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
qseecom_unregister_bus_bandwidth_needs(data);
mutex_unlock(&qsee_bw_mutex);
}
exit_free_img_data:
__qseecom_free_img_data(&cmnlib_ion_handle);
return ret;
}
static int qseecom_unload_commonlib_image(void)
{
int ret = -EINVAL;
struct qseecom_unload_lib_image_ireq unload_req = {0};
struct qseecom_command_scm_resp resp;
/* Populate the remaining parameters */
unload_req.qsee_cmd_id = QSEOS_UNLOAD_SERV_IMAGE_COMMAND;
/* SCM_CALL to load the image */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &unload_req,
sizeof(struct qseecom_unload_lib_image_ireq),
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to unload lib failed : ret %d\n", ret);
ret = -EIO;
} else {
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_FAILURE:
pr_err("scm fail resp.result QSEOS_RESULT FAILURE\n");
break;
default:
pr_err("scm call return unknown response %d\n",
resp.result);
ret = -EINVAL;
break;
}
}
return ret;
}
int qseecom_start_app(struct qseecom_handle **handle,
char *app_name, uint32_t size)
{
int32_t ret = 0;
unsigned long flags = 0;
struct qseecom_dev_handle *data = NULL;
struct qseecom_check_app_ireq app_ireq;
struct qseecom_registered_app_list *entry = NULL;
struct qseecom_registered_kclient_list *kclient_entry = NULL;
bool found_app = false;
size_t len;
ion_phys_addr_t pa;
uint32_t fw_size, app_arch;
uint32_t app_id = 0;
if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) {
pr_err("Not allowed to be called in %d state\n",
atomic_read(&qseecom.qseecom_state));
return -EPERM;
}
if (!app_name) {
pr_err("failed to get the app name\n");
return -EINVAL;
}
if (strnlen(app_name, MAX_APP_NAME_SIZE) == MAX_APP_NAME_SIZE) {
pr_err("The app_name (%s) with length %zu is not valid\n",
app_name, strnlen(app_name, MAX_APP_NAME_SIZE));
return -EINVAL;
}
*handle = kzalloc(sizeof(struct qseecom_handle), GFP_KERNEL);
if (!(*handle))
return -ENOMEM;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto exit_handle_free;
}
data->abort = 0;
data->type = QSEECOM_CLIENT_APP;
data->released = false;
data->client.sb_length = size;
data->client.user_virt_sb_base = 0;
data->client.ihandle = NULL;
init_waitqueue_head(&data->abort_wq);
data->client.ihandle = ion_alloc(qseecom.ion_clnt, size, 4096,
ION_HEAP(ION_QSECOM_HEAP_ID), 0);
if (IS_ERR_OR_NULL(data->client.ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
ret = -ENOMEM;
goto exit_data_free;
}
mutex_lock(&app_access_lock);
app_ireq.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND;
strlcpy(app_ireq.app_name, app_name, MAX_APP_NAME_SIZE);
ret = __qseecom_check_app_exists(app_ireq, &app_id);
if (ret)
goto exit_ion_free;
strlcpy(data->client.app_name, app_name, MAX_APP_NAME_SIZE);
if (app_id) {
pr_warn("App id %d for [%s] app exists\n", app_id,
(char *)app_ireq.app_name);
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_app_list_head, list){
if (entry->app_id == app_id) {
entry->ref_cnt++;
found_app = true;
break;
}
}
spin_unlock_irqrestore(
&qseecom.registered_app_list_lock, flags);
if (!found_app)
pr_warn("App_id %d [%s] was loaded but not registered\n",
ret, (char *)app_ireq.app_name);
} else {
/* load the app and get the app_id */
pr_debug("%s: Loading app for the first time'\n",
qseecom.pdev->init_name);
ret = __qseecom_load_fw(data, app_name, &app_id);
if (ret < 0)
goto exit_ion_free;
}
data->client.app_id = app_id;
if (!found_app) {
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
pr_err("kmalloc for app entry failed\n");
ret = -ENOMEM;
goto exit_ion_free;
}
entry->app_id = app_id;
entry->ref_cnt = 1;
strlcpy(entry->app_name, app_name, MAX_APP_NAME_SIZE);
if (__qseecom_get_fw_size(app_name, &fw_size, &app_arch)) {
ret = -EIO;
kfree(entry);
goto exit_entry_free;
}
entry->app_arch = app_arch;
entry->app_blocked = false;
entry->blocked_on_listener_id = 0;
entry->check_block = 0;
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_add_tail(&entry->list, &qseecom.registered_app_list_head);
spin_unlock_irqrestore(&qseecom.registered_app_list_lock,
flags);
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len);
if (ret) {
pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n",
ret);
goto exit_entry_free;
}
/* Populate the structure for sending scm call to load image */
data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt,
data->client.ihandle);
if (IS_ERR_OR_NULL(data->client.sb_virt)) {
pr_err("ION memory mapping for client shared buf failed\n");
ret = -ENOMEM;
goto exit_entry_free;
}
data->client.user_virt_sb_base = (uintptr_t)data->client.sb_virt;
data->client.sb_phys = (phys_addr_t)pa;
(*handle)->dev = (void *)data;
(*handle)->sbuf = (unsigned char *)data->client.sb_virt;
(*handle)->sbuf_len = data->client.sb_length;
kclient_entry = kzalloc(sizeof(*kclient_entry), GFP_KERNEL);
if (!kclient_entry) {
ret = -ENOMEM;
goto exit_ion_unmap_kernel;
}
kclient_entry->handle = *handle;
spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags);
list_add_tail(&kclient_entry->list,
&qseecom.registered_kclient_list_head);
spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags);
mutex_unlock(&app_access_lock);
return 0;
exit_ion_unmap_kernel:
if (!IS_ERR_OR_NULL(data->client.ihandle))
ion_unmap_kernel(qseecom.ion_clnt, data->client.ihandle);
exit_entry_free:
kfree(entry);
exit_ion_free:
mutex_unlock(&app_access_lock);
if (!IS_ERR_OR_NULL(data->client.ihandle)) {
ion_free(qseecom.ion_clnt, data->client.ihandle);
data->client.ihandle = NULL;
}
exit_data_free:
kfree(data);
exit_handle_free:
if (*handle) {
kfree(*handle);
*handle = NULL;
}
return ret;
}
EXPORT_SYMBOL(qseecom_start_app);
int qseecom_shutdown_app(struct qseecom_handle **handle)
{
int ret = -EINVAL;
struct qseecom_dev_handle *data;
struct qseecom_registered_kclient_list *kclient = NULL;
unsigned long flags = 0;
bool found_handle = false;
if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) {
pr_err("Not allowed to be called in %d state\n",
atomic_read(&qseecom.qseecom_state));
return -EPERM;
}
if ((handle == NULL) || (*handle == NULL)) {
pr_err("Handle is not initialized\n");
return -EINVAL;
}
data = (struct qseecom_dev_handle *) ((*handle)->dev);
mutex_lock(&app_access_lock);
spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags);
list_for_each_entry(kclient, &qseecom.registered_kclient_list_head,
list) {
if (kclient->handle == (*handle)) {
list_del(&kclient->list);
found_handle = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags);
if (!found_handle)
pr_err("Unable to find the handle, exiting\n");
else
ret = qseecom_unload_app(data, false);
mutex_unlock(&app_access_lock);
if (ret == 0) {
kzfree(data);
kzfree(*handle);
kzfree(kclient);
*handle = NULL;
}
return ret;
}
EXPORT_SYMBOL(qseecom_shutdown_app);
int qseecom_send_command(struct qseecom_handle *handle, void *send_buf,
uint32_t sbuf_len, void *resp_buf, uint32_t rbuf_len)
{
int ret = 0;
struct qseecom_send_cmd_req req = {0, 0, 0, 0};
struct qseecom_dev_handle *data;
bool perf_enabled = false;
if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) {
pr_err("Not allowed to be called in %d state\n",
atomic_read(&qseecom.qseecom_state));
return -EPERM;
}
if (handle == NULL) {
pr_err("Handle is not initialized\n");
return -EINVAL;
}
data = handle->dev;
req.cmd_req_len = sbuf_len;
req.resp_len = rbuf_len;
req.cmd_req_buf = send_buf;
req.resp_buf = resp_buf;
if (__validate_send_cmd_inputs(data, &req))
return -EINVAL;
mutex_lock(&app_access_lock);
if (qseecom.support_bus_scaling) {
ret = qseecom_scale_bus_bandwidth_timer(INACTIVE);
if (ret) {
pr_err("Failed to set bw.\n");
mutex_unlock(&app_access_lock);
return ret;
}
}
/*
* On targets where crypto clock is handled by HLOS,
* if clk_access_cnt is zero and perf_enabled is false,
* then the crypto clock was not enabled before sending cmd
* to tz, qseecom will enable the clock to avoid service failure.
*/
if (!qseecom.no_clock_support &&
!qseecom.qsee.clk_access_cnt && !data->perf_enabled) {
pr_debug("ce clock is not enabled!\n");
ret = qseecom_perf_enable(data);
if (ret) {
pr_err("Failed to vote for clock with err %d\n",
ret);
mutex_unlock(&app_access_lock);
return -EINVAL;
}
perf_enabled = true;
}
if (!strcmp(data->client.app_name, "securemm"))
data->use_legacy_cmd = true;
ret = __qseecom_send_cmd(data, &req);
data->use_legacy_cmd = false;
if (qseecom.support_bus_scaling)
__qseecom_add_bw_scale_down_timer(
QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
if (perf_enabled) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
}
mutex_unlock(&app_access_lock);
if (ret)
return ret;
pr_debug("sending cmd_req->rsp size: %u, ptr: 0x%pK\n",
req.resp_len, req.resp_buf);
return ret;
}
EXPORT_SYMBOL(qseecom_send_command);
int qseecom_set_bandwidth(struct qseecom_handle *handle, bool high)
{
int ret = 0;
if ((handle == NULL) || (handle->dev == NULL)) {
pr_err("No valid kernel client\n");
return -EINVAL;
}
if (high) {
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
__qseecom_register_bus_bandwidth_needs(handle->dev,
HIGH);
mutex_unlock(&qsee_bw_mutex);
} else {
ret = qseecom_perf_enable(handle->dev);
if (ret)
pr_err("Failed to vote for clock with err %d\n",
ret);
}
} else {
if (!qseecom.support_bus_scaling) {
qsee_disable_clock_vote(handle->dev, CLK_DFAB);
qsee_disable_clock_vote(handle->dev, CLK_SFPB);
} else {
mutex_lock(&qsee_bw_mutex);
qseecom_unregister_bus_bandwidth_needs(handle->dev);
mutex_unlock(&qsee_bw_mutex);
}
}
return ret;
}
EXPORT_SYMBOL(qseecom_set_bandwidth);
int qseecom_process_listener_from_smcinvoke(struct scm_desc *desc)
{
struct qseecom_registered_app_list dummy_app_entry = { {0} };
struct qseecom_dev_handle dummy_private_data = {0};
struct qseecom_command_scm_resp resp;
int ret = 0;
if (!desc) {
pr_err("desc is NULL\n");
return -EINVAL;
}
resp.result = desc->ret[0]; /*req_cmd*/
resp.resp_type = desc->ret[1]; /*incomplete:unused;blocked:session_id*/
resp.data = desc->ret[2]; /*listener_id*/
dummy_private_data.client.app_id = desc->ret[1];
dummy_app_entry.app_id = desc->ret[1];
mutex_lock(&app_access_lock);
if (qseecom.qsee_reentrancy_support)
ret = __qseecom_process_reentrancy(&resp, &dummy_app_entry,
&dummy_private_data);
else
ret = __qseecom_process_incomplete_cmd(&dummy_private_data,
&resp);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("Failed on cmd %d for lsnr %d session %d, ret = %d\n",
(int)desc->ret[0], (int)desc->ret[2],
(int)desc->ret[1], ret);
desc->ret[0] = resp.result;
desc->ret[1] = resp.resp_type;
desc->ret[2] = resp.data;
return ret;
}
EXPORT_SYMBOL(qseecom_process_listener_from_smcinvoke);
static int qseecom_send_resp(void)
{
qseecom.send_resp_flag = 1;
wake_up_interruptible(&qseecom.send_resp_wq);
return 0;
}
static int qseecom_reentrancy_send_resp(struct qseecom_dev_handle *data)
{
struct qseecom_registered_listener_list *this_lstnr = NULL;
pr_debug("lstnr %d send resp, wakeup\n", data->listener.id);
this_lstnr = __qseecom_find_svc(data->listener.id);
if (this_lstnr == NULL)
return -EINVAL;
qseecom.send_resp_flag = 1;
this_lstnr->send_resp_flag = 1;
wake_up_interruptible(&qseecom.send_resp_wq);
return 0;
}
static int __validate_send_modfd_resp_inputs(struct qseecom_dev_handle *data,
struct qseecom_send_modfd_listener_resp *resp,
struct qseecom_registered_listener_list *this_lstnr)
{
int i;
if (!data || !resp || !this_lstnr) {
pr_err("listener handle or resp msg is null\n");
return -EINVAL;
}
if (resp->resp_buf_ptr == NULL) {
pr_err("resp buffer is null\n");
return -EINVAL;
}
/* validate resp buf length */
if ((resp->resp_len == 0) ||
(resp->resp_len > this_lstnr->sb_length)) {
pr_err("resp buf length %d not valid\n", resp->resp_len);
return -EINVAL;
}
if ((uintptr_t)resp->resp_buf_ptr > (ULONG_MAX - resp->resp_len)) {
pr_err("Integer overflow in resp_len & resp_buf\n");
return -EINVAL;
}
if ((uintptr_t)this_lstnr->user_virt_sb_base >
(ULONG_MAX - this_lstnr->sb_length)) {
pr_err("Integer overflow in user_virt_sb_base & sb_length\n");
return -EINVAL;
}
/* validate resp buf */
if (((uintptr_t)resp->resp_buf_ptr <
(uintptr_t)this_lstnr->user_virt_sb_base) ||
((uintptr_t)resp->resp_buf_ptr >=
((uintptr_t)this_lstnr->user_virt_sb_base +
this_lstnr->sb_length)) ||
(((uintptr_t)resp->resp_buf_ptr + resp->resp_len) >
((uintptr_t)this_lstnr->user_virt_sb_base +
this_lstnr->sb_length))) {
pr_err("resp buf is out of shared buffer region\n");
return -EINVAL;
}
/* validate offsets */
for (i = 0; i < MAX_ION_FD; i++) {
if (resp->ifd_data[i].cmd_buf_offset >= resp->resp_len) {
pr_err("Invalid offset %d = 0x%x\n",
i, resp->ifd_data[i].cmd_buf_offset);
return -EINVAL;
}
}
return 0;
}
static int __qseecom_send_modfd_resp(struct qseecom_dev_handle *data,
void __user *argp, bool is_64bit_addr)
{
struct qseecom_send_modfd_listener_resp resp;
struct qseecom_registered_listener_list *this_lstnr = NULL;
if (copy_from_user(&resp, argp, sizeof(resp))) {
pr_err("copy_from_user failed");
return -EINVAL;
}
this_lstnr = __qseecom_find_svc(data->listener.id);
if (this_lstnr == NULL)
return -EINVAL;
if (__validate_send_modfd_resp_inputs(data, &resp, this_lstnr))
return -EINVAL;
resp.resp_buf_ptr = this_lstnr->sb_virt +
(uintptr_t)(resp.resp_buf_ptr - this_lstnr->user_virt_sb_base);
if (!is_64bit_addr)
__qseecom_update_cmd_buf(&resp, false, data);
else
__qseecom_update_cmd_buf_64(&resp, false, data);
qseecom.send_resp_flag = 1;
this_lstnr->send_resp_flag = 1;
wake_up_interruptible(&qseecom.send_resp_wq);
return 0;
}
static int qseecom_send_modfd_resp(struct qseecom_dev_handle *data,
void __user *argp)
{
return __qseecom_send_modfd_resp(data, argp, false);
}
static int qseecom_send_modfd_resp_64(struct qseecom_dev_handle *data,
void __user *argp)
{
return __qseecom_send_modfd_resp(data, argp, true);
}
static int qseecom_get_qseos_version(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_qseos_version_req req;
if (copy_from_user(&req, argp, sizeof(req))) {
pr_err("copy_from_user failed");
return -EINVAL;
}
req.qseos_version = qseecom.qseos_version;
if (copy_to_user(argp, &req, sizeof(req))) {
pr_err("copy_to_user failed");
return -EINVAL;
}
return 0;
}
static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce)
{
int rc = 0;
struct qseecom_clk *qclk = NULL;
if (qseecom.no_clock_support)
return 0;
if (ce == CLK_QSEE)
qclk = &qseecom.qsee;
if (ce == CLK_CE_DRV)
qclk = &qseecom.ce_drv;
if (qclk == NULL) {
pr_err("CLK type not supported\n");
return -EINVAL;
}
mutex_lock(&clk_access_lock);
if (qclk->clk_access_cnt == ULONG_MAX) {
pr_err("clk_access_cnt beyond limitation\n");
goto err;
}
if (qclk->clk_access_cnt > 0) {
qclk->clk_access_cnt++;
mutex_unlock(&clk_access_lock);
return rc;
}
/* Enable CE core clk */
if (qclk->ce_core_clk != NULL) {
rc = clk_prepare_enable(qclk->ce_core_clk);
if (rc) {
pr_err("Unable to enable/prepare CE core clk\n");
goto err;
}
}
/* Enable CE clk */
if (qclk->ce_clk != NULL) {
rc = clk_prepare_enable(qclk->ce_clk);
if (rc) {
pr_err("Unable to enable/prepare CE iface clk\n");
goto ce_clk_err;
}
}
/* Enable AXI clk */
if (qclk->ce_bus_clk != NULL) {
rc = clk_prepare_enable(qclk->ce_bus_clk);
if (rc) {
pr_err("Unable to enable/prepare CE bus clk\n");
goto ce_bus_clk_err;
}
}
qclk->clk_access_cnt++;
mutex_unlock(&clk_access_lock);
return 0;
ce_bus_clk_err:
if (qclk->ce_clk != NULL)
clk_disable_unprepare(qclk->ce_clk);
ce_clk_err:
if (qclk->ce_core_clk != NULL)
clk_disable_unprepare(qclk->ce_core_clk);
err:
mutex_unlock(&clk_access_lock);
return -EIO;
}
static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce)
{
struct qseecom_clk *qclk;
if (qseecom.no_clock_support)
return;
if (ce == CLK_QSEE)
qclk = &qseecom.qsee;
else
qclk = &qseecom.ce_drv;
mutex_lock(&clk_access_lock);
if (qclk->clk_access_cnt == 0) {
mutex_unlock(&clk_access_lock);
return;
}
if (qclk->clk_access_cnt == 1) {
if (qclk->ce_clk != NULL)
clk_disable_unprepare(qclk->ce_clk);
if (qclk->ce_core_clk != NULL)
clk_disable_unprepare(qclk->ce_core_clk);
if (qclk->ce_bus_clk != NULL)
clk_disable_unprepare(qclk->ce_bus_clk);
}
qclk->clk_access_cnt--;
mutex_unlock(&clk_access_lock);
}
static int qsee_vote_for_clock(struct qseecom_dev_handle *data,
int32_t clk_type)
{
int ret = 0;
struct qseecom_clk *qclk;
if (qseecom.no_clock_support)
return 0;
qclk = &qseecom.qsee;
if (!qseecom.qsee_perf_client)
return ret;
switch (clk_type) {
case CLK_DFAB:
mutex_lock(&qsee_bw_mutex);
if (!qseecom.qsee_bw_count) {
if (qseecom.qsee_sfpb_bw_count > 0)
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 3);
else {
if (qclk->ce_core_src_clk != NULL)
ret = __qseecom_enable_clk(CLK_QSEE);
if (!ret) {
ret =
msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 1);
if ((ret) &&
(qclk->ce_core_src_clk != NULL))
__qseecom_disable_clk(CLK_QSEE);
}
}
if (ret)
pr_err("DFAB Bandwidth req failed (%d)\n",
ret);
else {
qseecom.qsee_bw_count++;
data->perf_enabled = true;
}
} else {
qseecom.qsee_bw_count++;
data->perf_enabled = true;
}
mutex_unlock(&qsee_bw_mutex);
break;
case CLK_SFPB:
mutex_lock(&qsee_bw_mutex);
if (!qseecom.qsee_sfpb_bw_count) {
if (qseecom.qsee_bw_count > 0)
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 3);
else {
if (qclk->ce_core_src_clk != NULL)
ret = __qseecom_enable_clk(CLK_QSEE);
if (!ret) {
ret =
msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 2);
if ((ret) &&
(qclk->ce_core_src_clk != NULL))
__qseecom_disable_clk(CLK_QSEE);
}
}
if (ret)
pr_err("SFPB Bandwidth req failed (%d)\n",
ret);
else {
qseecom.qsee_sfpb_bw_count++;
data->fast_load_enabled = true;
}
} else {
qseecom.qsee_sfpb_bw_count++;
data->fast_load_enabled = true;
}
mutex_unlock(&qsee_bw_mutex);
break;
default:
pr_err("Clock type not defined\n");
break;
}
return ret;
}
static void qsee_disable_clock_vote(struct qseecom_dev_handle *data,
int32_t clk_type)
{
int32_t ret = 0;
struct qseecom_clk *qclk;
qclk = &qseecom.qsee;
if (qseecom.no_clock_support)
return;
if (!qseecom.qsee_perf_client)
return;
switch (clk_type) {
case CLK_DFAB:
mutex_lock(&qsee_bw_mutex);
if (qseecom.qsee_bw_count == 0) {
pr_err("Client error.Extra call to disable DFAB clk\n");
mutex_unlock(&qsee_bw_mutex);
return;
}
if (qseecom.qsee_bw_count == 1) {
if (qseecom.qsee_sfpb_bw_count > 0)
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 2);
else {
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 0);
if ((!ret) && (qclk->ce_core_src_clk != NULL))
__qseecom_disable_clk(CLK_QSEE);
}
if (ret)
pr_err("SFPB Bandwidth req fail (%d)\n",
ret);
else {
qseecom.qsee_bw_count--;
data->perf_enabled = false;
}
} else {
qseecom.qsee_bw_count--;
data->perf_enabled = false;
}
mutex_unlock(&qsee_bw_mutex);
break;
case CLK_SFPB:
mutex_lock(&qsee_bw_mutex);
if (qseecom.qsee_sfpb_bw_count == 0) {
pr_err("Client error.Extra call to disable SFPB clk\n");
mutex_unlock(&qsee_bw_mutex);
return;
}
if (qseecom.qsee_sfpb_bw_count == 1) {
if (qseecom.qsee_bw_count > 0)
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 1);
else {
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, 0);
if ((!ret) && (qclk->ce_core_src_clk != NULL))
__qseecom_disable_clk(CLK_QSEE);
}
if (ret)
pr_err("SFPB Bandwidth req fail (%d)\n",
ret);
else {
qseecom.qsee_sfpb_bw_count--;
data->fast_load_enabled = false;
}
} else {
qseecom.qsee_sfpb_bw_count--;
data->fast_load_enabled = false;
}
mutex_unlock(&qsee_bw_mutex);
break;
default:
pr_err("Clock type not defined\n");
break;
}
}
static int qseecom_load_external_elf(struct qseecom_dev_handle *data,
void __user *argp)
{
struct ion_handle *ihandle; /* Ion handle */
struct qseecom_load_img_req load_img_req;
int uret = 0;
int ret;
ion_phys_addr_t pa = 0;
size_t len;
struct qseecom_load_app_ireq load_req;
struct qseecom_load_app_64bit_ireq load_req_64bit;
struct qseecom_command_scm_resp resp;
void *cmd_buf = NULL;
size_t cmd_len;
/* Copy the relevant information needed for loading the image */
if (copy_from_user(&load_img_req,
(void __user *)argp,
sizeof(struct qseecom_load_img_req))) {
pr_err("copy_from_user failed\n");
return -EFAULT;
}
/* Get the handle of the shared fd */
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
load_img_req.ifd_data_fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client could not retrieve the handle\n");
return -ENOMEM;
}
/* Get the physical address of the ION BUF */
ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len);
if (ret) {
pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n",
ret);
return ret;
}
if (load_img_req.mdt_len > len || load_img_req.img_len > len) {
pr_err("ion len %zu is smaller than mdt_len %u or img_len %u\n",
len, load_img_req.mdt_len,
load_img_req.img_len);
return ret;
}
/* Populate the structure for sending scm call to load image */
if (qseecom.qsee_version < QSEE_VERSION_40) {
load_req.qsee_cmd_id = QSEOS_LOAD_EXTERNAL_ELF_COMMAND;
load_req.mdt_len = load_img_req.mdt_len;
load_req.img_len = load_img_req.img_len;
load_req.phy_addr = (uint32_t)pa;
cmd_buf = (void *)&load_req;
cmd_len = sizeof(struct qseecom_load_app_ireq);
} else {
load_req_64bit.qsee_cmd_id = QSEOS_LOAD_EXTERNAL_ELF_COMMAND;
load_req_64bit.mdt_len = load_img_req.mdt_len;
load_req_64bit.img_len = load_img_req.img_len;
load_req_64bit.phy_addr = (uint64_t)pa;
cmd_buf = (void *)&load_req_64bit;
cmd_len = sizeof(struct qseecom_load_app_64bit_ireq);
}
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM);
mutex_unlock(&qsee_bw_mutex);
if (ret) {
ret = -EIO;
goto exit_cpu_restore;
}
}
/* Vote for the SFPB clock */
ret = __qseecom_enable_clk_scale_up(data);
if (ret) {
ret = -EIO;
goto exit_register_bus_bandwidth_needs;
}
ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto exit_disable_clock;
}
/* SCM_CALL to load the external elf */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to load failed : ret %d\n",
ret);
ret = -EFAULT;
goto exit_disable_clock;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_INCOMPLETE:
pr_err("%s: qseos result incomplete\n", __func__);
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret)
pr_err("process_incomplete_cmd failed: err: %d\n", ret);
break;
case QSEOS_RESULT_FAILURE:
pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n");
ret = -EFAULT;
break;
default:
pr_err("scm_call response result %d not supported\n",
resp.result);
ret = -EFAULT;
break;
}
exit_disable_clock:
__qseecom_disable_clk_scale_down(data);
exit_register_bus_bandwidth_needs:
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
uret = qseecom_unregister_bus_bandwidth_needs(data);
mutex_unlock(&qsee_bw_mutex);
if (uret)
pr_err("Failed to unregister bus bw needs %d, scm_call ret %d\n",
uret, ret);
}
exit_cpu_restore:
/* Deallocate the handle */
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
return ret;
}
static int qseecom_unload_external_elf(struct qseecom_dev_handle *data)
{
int ret = 0;
struct qseecom_command_scm_resp resp;
struct qseecom_unload_app_ireq req;
/* unavailable client app */
data->type = QSEECOM_UNAVAILABLE_CLIENT_APP;
/* Populate the structure for sending scm call to unload image */
req.qsee_cmd_id = QSEOS_UNLOAD_EXTERNAL_ELF_COMMAND;
/* SCM_CALL to unload the external elf */
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req,
sizeof(struct qseecom_unload_app_ireq),
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call to unload failed : ret %d\n",
ret);
ret = -EFAULT;
goto qseecom_unload_external_elf_scm_err;
}
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret)
pr_err("process_incomplete_cmd fail err: %d\n",
ret);
} else {
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("scm_call to unload image failed resp.result =%d\n",
resp.result);
ret = -EFAULT;
}
}
qseecom_unload_external_elf_scm_err:
return ret;
}
static int qseecom_query_app_loaded(struct qseecom_dev_handle *data,
void __user *argp)
{
int32_t ret;
struct qseecom_qseos_app_load_query query_req;
struct qseecom_check_app_ireq req;
struct qseecom_registered_app_list *entry = NULL;
unsigned long flags = 0;
uint32_t app_arch = 0, app_id = 0;
bool found_app = false;
/* Copy the relevant information needed for loading the image */
if (copy_from_user(&query_req,
(void __user *)argp,
sizeof(struct qseecom_qseos_app_load_query))) {
pr_err("copy_from_user failed\n");
return -EFAULT;
}
req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND;
query_req.app_name[MAX_APP_NAME_SIZE-1] = '\0';
strlcpy(req.app_name, query_req.app_name, MAX_APP_NAME_SIZE);
ret = __qseecom_check_app_exists(req, &app_id);
if (ret) {
pr_err(" scm call to check if app is loaded failed");
return ret; /* scm call failed */
}
if (app_id) {
pr_debug("App id %d (%s) already exists\n", app_id,
(char *)(req.app_name));
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(entry,
&qseecom.registered_app_list_head, list){
if (entry->app_id == app_id) {
app_arch = entry->app_arch;
entry->ref_cnt++;
found_app = true;
break;
}
}
spin_unlock_irqrestore(
&qseecom.registered_app_list_lock, flags);
data->client.app_id = app_id;
query_req.app_id = app_id;
if (app_arch) {
data->client.app_arch = app_arch;
query_req.app_arch = app_arch;
} else {
data->client.app_arch = 0;
query_req.app_arch = 0;
}
strlcpy(data->client.app_name, query_req.app_name,
MAX_APP_NAME_SIZE);
/*
* If app was loaded by appsbl before and was not registered,
* regiser this app now.
*/
if (!found_app) {
pr_debug("Register app %d [%s] which was loaded before\n",
ret, (char *)query_req.app_name);
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
pr_err("kmalloc for app entry failed\n");
return -ENOMEM;
}
entry->app_id = app_id;
entry->ref_cnt = 1;
entry->app_arch = data->client.app_arch;
strlcpy(entry->app_name, data->client.app_name,
MAX_APP_NAME_SIZE);
entry->app_blocked = false;
entry->blocked_on_listener_id = 0;
entry->check_block = 0;
spin_lock_irqsave(&qseecom.registered_app_list_lock,
flags);
list_add_tail(&entry->list,
&qseecom.registered_app_list_head);
spin_unlock_irqrestore(
&qseecom.registered_app_list_lock, flags);
}
if (copy_to_user(argp, &query_req, sizeof(query_req))) {
pr_err("copy_to_user failed\n");
return -EFAULT;
}
return -EEXIST; /* app already loaded */
} else {
return 0; /* app not loaded */
}
}
static int __qseecom_get_ce_pipe_info(
enum qseecom_key_management_usage_type usage,
uint32_t *pipe, uint32_t **ce_hw, uint32_t unit)
{
int ret = -EINVAL;
int i, j;
struct qseecom_ce_info_use *p = NULL;
int total = 0;
struct qseecom_ce_pipe_entry *pcepipe;
switch (usage) {
case QSEOS_KM_USAGE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION:
if (qseecom.support_fde) {
p = qseecom.ce_info.fde;
total = qseecom.ce_info.num_fde;
} else {
pr_err("system does not support fde\n");
return -EINVAL;
}
break;
case QSEOS_KM_USAGE_FILE_ENCRYPTION:
if (qseecom.support_pfe) {
p = qseecom.ce_info.pfe;
total = qseecom.ce_info.num_pfe;
} else {
pr_err("system does not support pfe\n");
return -EINVAL;
}
break;
default:
pr_err("unsupported usage %d\n", usage);
return -EINVAL;
}
for (j = 0; j < total; j++) {
if (p->unit_num == unit) {
pcepipe = p->ce_pipe_entry;
for (i = 0; i < p->num_ce_pipe_entries; i++) {
(*ce_hw)[i] = pcepipe->ce_num;
*pipe = pcepipe->ce_pipe_pair;
pcepipe++;
}
ret = 0;
break;
}
p++;
}
return ret;
}
static int __qseecom_generate_and_save_key(struct qseecom_dev_handle *data,
enum qseecom_key_management_usage_type usage,
struct qseecom_key_generate_ireq *ireq)
{
struct qseecom_command_scm_resp resp;
int ret;
if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
usage >= QSEOS_KM_USAGE_MAX) {
pr_err("Error:: unsupported usage %d\n", usage);
return -EFAULT;
}
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
ireq, sizeof(struct qseecom_key_generate_ireq),
&resp, sizeof(resp));
if (ret) {
if (ret == -EINVAL &&
resp.result == QSEOS_RESULT_FAIL_KEY_ID_EXISTS) {
pr_debug("Key ID exists.\n");
ret = 0;
} else {
pr_err("scm call to generate key failed : %d\n", ret);
ret = -EFAULT;
}
goto generate_key_exit;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_FAIL_KEY_ID_EXISTS:
pr_debug("Key ID exists.\n");
break;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
if (resp.result == QSEOS_RESULT_FAIL_KEY_ID_EXISTS) {
pr_debug("Key ID exists.\n");
ret = 0;
} else {
pr_err("process_incomplete_cmd FAILED, resp.result %d\n",
resp.result);
}
}
break;
case QSEOS_RESULT_FAILURE:
default:
pr_err("gen key scm call failed resp.result %d\n", resp.result);
ret = -EINVAL;
break;
}
generate_key_exit:
__qseecom_disable_clk(CLK_QSEE);
return ret;
}
static int __qseecom_delete_saved_key(struct qseecom_dev_handle *data,
enum qseecom_key_management_usage_type usage,
struct qseecom_key_delete_ireq *ireq)
{
struct qseecom_command_scm_resp resp;
int ret;
if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
usage >= QSEOS_KM_USAGE_MAX) {
pr_err("Error:: unsupported usage %d\n", usage);
return -EFAULT;
}
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
ireq, sizeof(struct qseecom_key_delete_ireq),
&resp, sizeof(struct qseecom_command_scm_resp));
if (ret) {
if (ret == -EINVAL &&
resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) {
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
} else {
pr_err("scm call to delete key failed : %d\n", ret);
ret = -EFAULT;
}
goto del_key_exit;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd FAILED, resp.result %d\n",
resp.result);
if (resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) {
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
}
}
break;
case QSEOS_RESULT_FAIL_MAX_ATTEMPT:
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
break;
case QSEOS_RESULT_FAILURE:
default:
pr_err("Delete key scm call failed resp.result %d\n",
resp.result);
ret = -EINVAL;
break;
}
del_key_exit:
__qseecom_disable_clk(CLK_QSEE);
return ret;
}
static int __qseecom_set_clear_ce_key(struct qseecom_dev_handle *data,
enum qseecom_key_management_usage_type usage,
struct qseecom_key_select_ireq *ireq)
{
struct qseecom_command_scm_resp resp;
int ret;
if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
usage >= QSEOS_KM_USAGE_MAX) {
pr_err("Error:: unsupported usage %d\n", usage);
return -EFAULT;
}
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
if (qseecom.qsee.instance != qseecom.ce_drv.instance) {
ret = __qseecom_enable_clk(CLK_CE_DRV);
if (ret)
return ret;
}
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
ireq, sizeof(struct qseecom_key_select_ireq),
&resp, sizeof(struct qseecom_command_scm_resp));
if (ret) {
if (ret == -EINVAL &&
resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) {
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
} else if (ret == -EINVAL &&
resp.result == QSEOS_RESULT_FAIL_PENDING_OPERATION) {
pr_debug("Set Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
} else {
pr_err("scm call to set QSEOS_PIPE_ENC key failed : %d\n",
ret);
ret = -EFAULT;
}
goto set_key_exit;
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd FAILED, resp.result %d\n",
resp.result);
if (resp.result ==
QSEOS_RESULT_FAIL_PENDING_OPERATION) {
pr_debug("Set Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
}
if (resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) {
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
}
}
break;
case QSEOS_RESULT_FAIL_MAX_ATTEMPT:
pr_debug("Max attempts to input password reached.\n");
ret = -ERANGE;
break;
case QSEOS_RESULT_FAIL_PENDING_OPERATION:
pr_debug("Set Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
break;
case QSEOS_RESULT_FAILURE:
default:
pr_err("Set key scm call failed resp.result %d\n", resp.result);
ret = -EINVAL;
break;
}
set_key_exit:
__qseecom_disable_clk(CLK_QSEE);
if (qseecom.qsee.instance != qseecom.ce_drv.instance)
__qseecom_disable_clk(CLK_CE_DRV);
return ret;
}
static int __qseecom_update_current_key_user_info(
struct qseecom_dev_handle *data,
enum qseecom_key_management_usage_type usage,
struct qseecom_key_userinfo_update_ireq *ireq)
{
struct qseecom_command_scm_resp resp;
int ret;
if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
usage >= QSEOS_KM_USAGE_MAX) {
pr_err("Error:: unsupported usage %d\n", usage);
return -EFAULT;
}
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
return ret;
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
ireq, sizeof(struct qseecom_key_userinfo_update_ireq),
&resp, sizeof(struct qseecom_command_scm_resp));
if (ret) {
if (ret == -EINVAL &&
resp.result == QSEOS_RESULT_FAIL_PENDING_OPERATION) {
pr_debug("Set Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
} else {
pr_err("scm call to update key userinfo failed: %d\n",
ret);
__qseecom_disable_clk(CLK_QSEE);
return -EFAULT;
}
}
switch (resp.result) {
case QSEOS_RESULT_SUCCESS:
break;
case QSEOS_RESULT_INCOMPLETE:
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (resp.result ==
QSEOS_RESULT_FAIL_PENDING_OPERATION) {
pr_debug("Set Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
}
if (ret)
pr_err("process_incomplete_cmd FAILED, resp.result %d\n",
resp.result);
break;
case QSEOS_RESULT_FAIL_PENDING_OPERATION:
pr_debug("Update Key operation under processing...\n");
ret = QSEOS_RESULT_FAIL_PENDING_OPERATION;
break;
case QSEOS_RESULT_FAILURE:
default:
pr_err("Set key scm call failed resp.result %d\n", resp.result);
ret = -EINVAL;
break;
}
__qseecom_disable_clk(CLK_QSEE);
return ret;
}
static int qseecom_enable_ice_setup(int usage)
{
int ret = 0;
if (usage == QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION)
ret = qcom_ice_setup_ice_hw("ufs", true);
else if (usage == QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION)
ret = qcom_ice_setup_ice_hw("sdcc", true);
return ret;
}
static int qseecom_disable_ice_setup(int usage)
{
int ret = 0;
if (usage == QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION)
ret = qcom_ice_setup_ice_hw("ufs", false);
else if (usage == QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION)
ret = qcom_ice_setup_ice_hw("sdcc", false);
return ret;
}
static int qseecom_get_ce_hw_instance(uint32_t unit, uint32_t usage)
{
struct qseecom_ce_info_use *pce_info_use, *p;
int total = 0;
int i;
switch (usage) {
case QSEOS_KM_USAGE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION:
p = qseecom.ce_info.fde;
total = qseecom.ce_info.num_fde;
break;
case QSEOS_KM_USAGE_FILE_ENCRYPTION:
p = qseecom.ce_info.pfe;
total = qseecom.ce_info.num_pfe;
break;
default:
pr_err("unsupported usage %d\n", usage);
return -EINVAL;
}
pce_info_use = NULL;
for (i = 0; i < total; i++) {
if (p->unit_num == unit) {
pce_info_use = p;
break;
}
p++;
}
if (!pce_info_use) {
pr_err("can not find %d\n", unit);
return -EINVAL;
}
return pce_info_use->num_ce_pipe_entries;
}
static int qseecom_create_key(struct qseecom_dev_handle *data,
void __user *argp)
{
int i;
uint32_t *ce_hw = NULL;
uint32_t pipe = 0;
int ret = 0;
uint32_t flags = 0;
struct qseecom_create_key_req create_key_req;
struct qseecom_key_generate_ireq generate_key_ireq;
struct qseecom_key_select_ireq set_key_ireq;
uint32_t entries = 0;
ret = copy_from_user(&create_key_req, argp, sizeof(create_key_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (create_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
create_key_req.usage >= QSEOS_KM_USAGE_MAX) {
pr_err("unsupported usage %d\n", create_key_req.usage);
ret = -EFAULT;
return ret;
}
entries = qseecom_get_ce_hw_instance(DEFAULT_CE_INFO_UNIT,
create_key_req.usage);
if (entries <= 0) {
pr_err("no ce instance for usage %d instance %d\n",
DEFAULT_CE_INFO_UNIT, create_key_req.usage);
ret = -EINVAL;
return ret;
}
ce_hw = kcalloc(entries, sizeof(*ce_hw), GFP_KERNEL);
if (!ce_hw) {
ret = -ENOMEM;
return ret;
}
ret = __qseecom_get_ce_pipe_info(create_key_req.usage, &pipe, &ce_hw,
DEFAULT_CE_INFO_UNIT);
if (ret) {
pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret);
ret = -EINVAL;
goto free_buf;
}
if (qseecom.fde_key_size)
flags |= QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE;
else
flags |= QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE;
generate_key_ireq.flags = flags;
generate_key_ireq.qsee_command_id = QSEOS_GENERATE_KEY;
memset((void *)generate_key_ireq.key_id,
0, QSEECOM_KEY_ID_SIZE);
memset((void *)generate_key_ireq.hash32,
0, QSEECOM_HASH_SIZE);
memcpy((void *)generate_key_ireq.key_id,
(void *)key_id_array[create_key_req.usage].desc,
QSEECOM_KEY_ID_SIZE);
memcpy((void *)generate_key_ireq.hash32,
(void *)create_key_req.hash32,
QSEECOM_HASH_SIZE);
ret = __qseecom_generate_and_save_key(data,
create_key_req.usage, &generate_key_ireq);
if (ret) {
pr_err("Failed to generate key on storage: %d\n", ret);
goto free_buf;
}
for (i = 0; i < entries; i++) {
set_key_ireq.qsee_command_id = QSEOS_SET_KEY;
if (create_key_req.usage ==
QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) {
set_key_ireq.ce = QSEECOM_UFS_ICE_CE_NUM;
set_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX;
} else if (create_key_req.usage ==
QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) {
set_key_ireq.ce = QSEECOM_SDCC_ICE_CE_NUM;
set_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX;
} else {
set_key_ireq.ce = ce_hw[i];
set_key_ireq.pipe = pipe;
}
set_key_ireq.flags = flags;
/* set both PIPE_ENC and PIPE_ENC_XTS*/
set_key_ireq.pipe_type = QSEOS_PIPE_ENC|QSEOS_PIPE_ENC_XTS;
memset((void *)set_key_ireq.key_id, 0, QSEECOM_KEY_ID_SIZE);
memset((void *)set_key_ireq.hash32, 0, QSEECOM_HASH_SIZE);
memcpy((void *)set_key_ireq.key_id,
(void *)key_id_array[create_key_req.usage].desc,
QSEECOM_KEY_ID_SIZE);
memcpy((void *)set_key_ireq.hash32,
(void *)create_key_req.hash32,
QSEECOM_HASH_SIZE);
/*
* It will return false if it is GPCE based crypto instance or
* ICE is setup properly
*/
ret = qseecom_enable_ice_setup(create_key_req.usage);
if (ret)
goto free_buf;
do {
ret = __qseecom_set_clear_ce_key(data,
create_key_req.usage,
&set_key_ireq);
/*
* wait a little before calling scm again to let other
* processes run
*/
if (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION)
msleep(50);
} while (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION);
qseecom_disable_ice_setup(create_key_req.usage);
if (ret) {
pr_err("Failed to create key: pipe %d, ce %d: %d\n",
pipe, ce_hw[i], ret);
goto free_buf;
} else {
pr_err("Set the key successfully\n");
if ((create_key_req.usage ==
QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) ||
(create_key_req.usage ==
QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION))
goto free_buf;
}
}
free_buf:
kzfree(ce_hw);
return ret;
}
static int qseecom_wipe_key(struct qseecom_dev_handle *data,
void __user *argp)
{
uint32_t *ce_hw = NULL;
uint32_t pipe = 0;
int ret = 0;
uint32_t flags = 0;
int i, j;
struct qseecom_wipe_key_req wipe_key_req;
struct qseecom_key_delete_ireq delete_key_ireq;
struct qseecom_key_select_ireq clear_key_ireq;
uint32_t entries = 0;
ret = copy_from_user(&wipe_key_req, argp, sizeof(wipe_key_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (wipe_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
wipe_key_req.usage >= QSEOS_KM_USAGE_MAX) {
pr_err("unsupported usage %d\n", wipe_key_req.usage);
ret = -EFAULT;
return ret;
}
entries = qseecom_get_ce_hw_instance(DEFAULT_CE_INFO_UNIT,
wipe_key_req.usage);
if (entries <= 0) {
pr_err("no ce instance for usage %d instance %d\n",
DEFAULT_CE_INFO_UNIT, wipe_key_req.usage);
ret = -EINVAL;
return ret;
}
ce_hw = kcalloc(entries, sizeof(*ce_hw), GFP_KERNEL);
if (!ce_hw) {
ret = -ENOMEM;
return ret;
}
ret = __qseecom_get_ce_pipe_info(wipe_key_req.usage, &pipe, &ce_hw,
DEFAULT_CE_INFO_UNIT);
if (ret) {
pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret);
ret = -EINVAL;
goto free_buf;
}
if (wipe_key_req.wipe_key_flag) {
delete_key_ireq.flags = flags;
delete_key_ireq.qsee_command_id = QSEOS_DELETE_KEY;
memset((void *)delete_key_ireq.key_id, 0, QSEECOM_KEY_ID_SIZE);
memcpy((void *)delete_key_ireq.key_id,
(void *)key_id_array[wipe_key_req.usage].desc,
QSEECOM_KEY_ID_SIZE);
memset((void *)delete_key_ireq.hash32, 0, QSEECOM_HASH_SIZE);
ret = __qseecom_delete_saved_key(data, wipe_key_req.usage,
&delete_key_ireq);
if (ret) {
pr_err("Failed to delete key from ssd storage: %d\n",
ret);
ret = -EFAULT;
goto free_buf;
}
}
for (j = 0; j < entries; j++) {
clear_key_ireq.qsee_command_id = QSEOS_SET_KEY;
if (wipe_key_req.usage ==
QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) {
clear_key_ireq.ce = QSEECOM_UFS_ICE_CE_NUM;
clear_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX;
} else if (wipe_key_req.usage ==
QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) {
clear_key_ireq.ce = QSEECOM_SDCC_ICE_CE_NUM;
clear_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX;
} else {
clear_key_ireq.ce = ce_hw[j];
clear_key_ireq.pipe = pipe;
}
clear_key_ireq.flags = flags;
clear_key_ireq.pipe_type = QSEOS_PIPE_ENC|QSEOS_PIPE_ENC_XTS;
for (i = 0; i < QSEECOM_KEY_ID_SIZE; i++)
clear_key_ireq.key_id[i] = QSEECOM_INVALID_KEY_ID;
memset((void *)clear_key_ireq.hash32, 0, QSEECOM_HASH_SIZE);
/*
* It will return false if it is GPCE based crypto instance or
* ICE is setup properly
*/
ret = qseecom_enable_ice_setup(wipe_key_req.usage);
if (ret)
goto free_buf;
ret = __qseecom_set_clear_ce_key(data, wipe_key_req.usage,
&clear_key_ireq);
qseecom_disable_ice_setup(wipe_key_req.usage);
if (ret) {
pr_err("Failed to wipe key: pipe %d, ce %d: %d\n",
pipe, ce_hw[j], ret);
ret = -EFAULT;
goto free_buf;
}
}
free_buf:
kzfree(ce_hw);
return ret;
}
static int qseecom_update_key_user_info(struct qseecom_dev_handle *data,
void __user *argp)
{
int ret = 0;
uint32_t flags = 0;
struct qseecom_update_key_userinfo_req update_key_req;
struct qseecom_key_userinfo_update_ireq ireq;
ret = copy_from_user(&update_key_req, argp, sizeof(update_key_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
if (update_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION ||
update_key_req.usage >= QSEOS_KM_USAGE_MAX) {
pr_err("Error:: unsupported usage %d\n", update_key_req.usage);
return -EFAULT;
}
ireq.qsee_command_id = QSEOS_UPDATE_KEY_USERINFO;
if (qseecom.fde_key_size)
flags |= QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE;
else
flags |= QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE;
ireq.flags = flags;
memset(ireq.key_id, 0, QSEECOM_KEY_ID_SIZE);
memset((void *)ireq.current_hash32, 0, QSEECOM_HASH_SIZE);
memset((void *)ireq.new_hash32, 0, QSEECOM_HASH_SIZE);
memcpy((void *)ireq.key_id,
(void *)key_id_array[update_key_req.usage].desc,
QSEECOM_KEY_ID_SIZE);
memcpy((void *)ireq.current_hash32,
(void *)update_key_req.current_hash32, QSEECOM_HASH_SIZE);
memcpy((void *)ireq.new_hash32,
(void *)update_key_req.new_hash32, QSEECOM_HASH_SIZE);
do {
ret = __qseecom_update_current_key_user_info(data,
update_key_req.usage,
&ireq);
/*
* wait a little before calling scm again to let other
* processes run
*/
if (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION)
msleep(50);
} while (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION);
if (ret) {
pr_err("Failed to update key info: %d\n", ret);
return ret;
}
return ret;
}
static int qseecom_is_es_activated(void __user *argp)
{
struct qseecom_is_es_activated_req req = {0};
struct qseecom_command_scm_resp resp;
int ret;
if (qseecom.qsee_version < QSEE_VERSION_04) {
pr_err("invalid qsee version\n");
return -ENODEV;
}
if (argp == NULL) {
pr_err("arg is null\n");
return -EINVAL;
}
ret = qseecom_scm_call(SCM_SVC_ES, SCM_IS_ACTIVATED_ID,
&req, sizeof(req), &resp, sizeof(resp));
if (ret) {
pr_err("scm_call failed\n");
return ret;
}
req.is_activated = resp.result;
ret = copy_to_user(argp, &req, sizeof(req));
if (ret) {
pr_err("copy_to_user failed\n");
return ret;
}
return 0;
}
static int qseecom_save_partition_hash(void __user *argp)
{
struct qseecom_save_partition_hash_req req;
struct qseecom_command_scm_resp resp;
int ret;
memset(&resp, 0x00, sizeof(resp));
if (qseecom.qsee_version < QSEE_VERSION_04) {
pr_err("invalid qsee version\n");
return -ENODEV;
}
if (argp == NULL) {
pr_err("arg is null\n");
return -EINVAL;
}
ret = copy_from_user(&req, argp, sizeof(req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
ret = qseecom_scm_call(SCM_SVC_ES, SCM_SAVE_PARTITION_HASH_ID,
(void *)&req, sizeof(req), (void *)&resp, sizeof(resp));
if (ret) {
pr_err("qseecom_scm_call failed\n");
return ret;
}
return 0;
}
static int qseecom_mdtp_cipher_dip(void __user *argp)
{
struct qseecom_mdtp_cipher_dip_req req;
u32 tzbuflenin, tzbuflenout;
char *tzbufin = NULL, *tzbufout = NULL;
struct scm_desc desc = {0};
int ret;
do {
/* Copy the parameters from userspace */
if (argp == NULL) {
pr_err("arg is null\n");
ret = -EINVAL;
break;
}
ret = copy_from_user(&req, argp, sizeof(req));
if (ret) {
pr_err("copy_from_user failed, ret= %d\n", ret);
break;
}
if (req.in_buf == NULL || req.out_buf == NULL ||
req.in_buf_size == 0 || req.in_buf_size > MAX_DIP ||
req.out_buf_size == 0 || req.out_buf_size > MAX_DIP ||
req.direction > 1) {
pr_err("invalid parameters\n");
ret = -EINVAL;
break;
}
/* Copy the input buffer from userspace to kernel space */
tzbuflenin = PAGE_ALIGN(req.in_buf_size);
tzbufin = kzalloc(tzbuflenin, GFP_KERNEL);
if (!tzbufin) {
pr_err("error allocating in buffer\n");
ret = -ENOMEM;
break;
}
ret = copy_from_user(tzbufin, req.in_buf, req.in_buf_size);
if (ret) {
pr_err("copy_from_user failed, ret=%d\n", ret);
break;
}
dmac_flush_range(tzbufin, tzbufin + tzbuflenin);
/* Prepare the output buffer in kernel space */
tzbuflenout = PAGE_ALIGN(req.out_buf_size);
tzbufout = kzalloc(tzbuflenout, GFP_KERNEL);
if (!tzbufout) {
pr_err("error allocating out buffer\n");
ret = -ENOMEM;
break;
}
dmac_flush_range(tzbufout, tzbufout + tzbuflenout);
/* Send the command to TZ */
desc.arginfo = TZ_MDTP_CIPHER_DIP_ID_PARAM_ID;
desc.args[0] = virt_to_phys(tzbufin);
desc.args[1] = req.in_buf_size;
desc.args[2] = virt_to_phys(tzbufout);
desc.args[3] = req.out_buf_size;
desc.args[4] = req.direction;
ret = __qseecom_enable_clk(CLK_QSEE);
if (ret)
break;
ret = scm_call2(TZ_MDTP_CIPHER_DIP_ID, &desc);
__qseecom_disable_clk(CLK_QSEE);
if (ret) {
pr_err("scm_call2 failed for SCM_SVC_MDTP, ret=%d\n",
ret);
break;
}
/* Copy the output buffer from kernel space to userspace */
dmac_flush_range(tzbufout, tzbufout + tzbuflenout);
ret = copy_to_user(req.out_buf, tzbufout, req.out_buf_size);
if (ret) {
pr_err("copy_to_user failed, ret=%d\n", ret);
break;
}
} while (0);
kzfree(tzbufin);
kzfree(tzbufout);
return ret;
}
static int __qseecom_qteec_validate_msg(struct qseecom_dev_handle *data,
struct qseecom_qteec_req *req)
{
if (!data || !data->client.ihandle) {
pr_err("Client or client handle is not initialized\n");
return -EINVAL;
}
if (data->type != QSEECOM_CLIENT_APP)
return -EFAULT;
if (req->req_len > UINT_MAX - req->resp_len) {
pr_err("Integer overflow detected in req_len & rsp_len\n");
return -EINVAL;
}
if (req->req_len + req->resp_len > data->client.sb_length) {
pr_debug("Not enough memory to fit cmd_buf.\n");
pr_debug("resp_buf. Required: %u, Available: %zu\n",
(req->req_len + req->resp_len), data->client.sb_length);
return -ENOMEM;
}
if (req->req_ptr == NULL || req->resp_ptr == NULL) {
pr_err("cmd buffer or response buffer is null\n");
return -EINVAL;
}
if (((uintptr_t)req->req_ptr <
data->client.user_virt_sb_base) ||
((uintptr_t)req->req_ptr >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("cmd buffer address not within shared bufffer\n");
return -EINVAL;
}
if (((uintptr_t)req->resp_ptr <
data->client.user_virt_sb_base) ||
((uintptr_t)req->resp_ptr >=
(data->client.user_virt_sb_base + data->client.sb_length))) {
pr_err("response buffer address not within shared bufffer\n");
return -EINVAL;
}
if ((req->req_len == 0) || (req->resp_len == 0)) {
pr_err("cmd buf lengtgh/response buf length not valid\n");
return -EINVAL;
}
if ((uintptr_t)req->req_ptr > (ULONG_MAX - req->req_len)) {
pr_err("Integer overflow in req_len & req_ptr\n");
return -EINVAL;
}
if ((uintptr_t)req->resp_ptr > (ULONG_MAX - req->resp_len)) {
pr_err("Integer overflow in resp_len & resp_ptr\n");
return -EINVAL;
}
if (data->client.user_virt_sb_base >
(ULONG_MAX - data->client.sb_length)) {
pr_err("Integer overflow in user_virt_sb_base & sb_length\n");
return -EINVAL;
}
if ((((uintptr_t)req->req_ptr + req->req_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length)) ||
(((uintptr_t)req->resp_ptr + req->resp_len) >
((uintptr_t)data->client.user_virt_sb_base +
data->client.sb_length))) {
pr_err("cmd buf or resp buf is out of shared buffer region\n");
return -EINVAL;
}
return 0;
}
static int __qseecom_qteec_handle_pre_alc_fd(struct qseecom_dev_handle *data,
uint32_t fd_idx, struct sg_table *sg_ptr)
{
struct scatterlist *sg = sg_ptr->sgl;
struct qseecom_sg_entry *sg_entry;
void *buf;
uint i;
size_t size;
dma_addr_t coh_pmem;
if (fd_idx >= MAX_ION_FD) {
pr_err("fd_idx [%d] is invalid\n", fd_idx);
return -ENOMEM;
}
/*
* Allocate a buffer, populate it with number of entry plus
* each sg entry's phy addr and length; then return the
* phy_addr of the buffer.
*/
size = sizeof(uint32_t) +
sizeof(struct qseecom_sg_entry) * sg_ptr->nents;
size = (size + PAGE_SIZE) & PAGE_MASK;
buf = dma_alloc_coherent(qseecom.pdev,
size, &coh_pmem, GFP_KERNEL);
if (buf == NULL) {
pr_err("failed to alloc memory for sg buf\n");
return -ENOMEM;
}
*(uint32_t *)buf = sg_ptr->nents;
sg_entry = (struct qseecom_sg_entry *) (buf + sizeof(uint32_t));
for (i = 0; i < sg_ptr->nents; i++) {
sg_entry->phys_addr = (uint32_t)sg_dma_address(sg);
sg_entry->len = sg->length;
sg_entry++;
sg = sg_next(sg);
}
data->client.sec_buf_fd[fd_idx].is_sec_buf_fd = true;
data->client.sec_buf_fd[fd_idx].vbase = buf;
data->client.sec_buf_fd[fd_idx].pbase = coh_pmem;
data->client.sec_buf_fd[fd_idx].size = size;
return 0;
}
static int __qseecom_update_qteec_req_buf(struct qseecom_qteec_modfd_req *req,
struct qseecom_dev_handle *data, bool cleanup)
{
struct ion_handle *ihandle;
int ret = 0;
int i = 0;
uint32_t *update;
struct sg_table *sg_ptr = NULL;
struct scatterlist *sg;
struct qseecom_param_memref *memref;
if (req == NULL) {
pr_err("Invalid address\n");
return -EINVAL;
}
for (i = 0; i < MAX_ION_FD; i++) {
if (req->ifd_data[i].fd > 0) {
ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt,
req->ifd_data[i].fd);
if (IS_ERR_OR_NULL(ihandle)) {
pr_err("Ion client can't retrieve the handle\n");
return -ENOMEM;
}
if ((req->req_len < sizeof(uint32_t)) ||
(req->ifd_data[i].cmd_buf_offset >
req->req_len - sizeof(uint32_t))) {
pr_err("Invalid offset/req len 0x%x/0x%x\n",
req->req_len,
req->ifd_data[i].cmd_buf_offset);
return -EINVAL;
}
update = (uint32_t *)((char *) req->req_ptr +
req->ifd_data[i].cmd_buf_offset);
if (!update) {
pr_err("update pointer is NULL\n");
return -EINVAL;
}
} else {
continue;
}
/* Populate the cmd data structure with the phys_addr */
sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle);
if (IS_ERR_OR_NULL(sg_ptr)) {
pr_err("IOn client could not retrieve sg table\n");
goto err;
}
sg = sg_ptr->sgl;
if (sg == NULL) {
pr_err("sg is NULL\n");
goto err;
}
if ((sg_ptr->nents == 0) || (sg->length == 0)) {
pr_err("Num of scat entr (%d)or length(%d) invalid\n",
sg_ptr->nents, sg->length);
goto err;
}
/* clean up buf for pre-allocated fd */
if (cleanup && data->client.sec_buf_fd[i].is_sec_buf_fd &&
(*update)) {
if (data->client.sec_buf_fd[i].vbase)
dma_free_coherent(qseecom.pdev,
data->client.sec_buf_fd[i].size,
data->client.sec_buf_fd[i].vbase,
data->client.sec_buf_fd[i].pbase);
memset((void *)update, 0,
sizeof(struct qseecom_param_memref));
memset(&(data->client.sec_buf_fd[i]), 0,
sizeof(struct qseecom_sec_buf_fd_info));
goto clean;
}
if (*update == 0) {
/* update buf for pre-allocated fd from secure heap*/
ret = __qseecom_qteec_handle_pre_alc_fd(data, i,
sg_ptr);
if (ret) {
pr_err("Failed to handle buf for fd[%d]\n", i);
goto err;
}
memref = (struct qseecom_param_memref *)update;
memref->buffer =
(uint32_t)(data->client.sec_buf_fd[i].pbase);
memref->size =
(uint32_t)(data->client.sec_buf_fd[i].size);
} else {
/* update buf for fd from non-secure qseecom heap */
if (sg_ptr->nents != 1) {
pr_err("Num of scat entr (%d) invalid\n",
sg_ptr->nents);
goto err;
}
if (cleanup)
*update = 0;
else
*update = (uint32_t)sg_dma_address(sg_ptr->sgl);
}
clean:
if (cleanup) {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, sg->length,
ION_IOC_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
} else {
ret = msm_ion_do_cache_op(qseecom.ion_clnt,
ihandle, NULL, sg->length,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
goto err;
}
data->sglistinfo_ptr[i].indexAndFlags =
SGLISTINFO_SET_INDEX_FLAG(
(sg_ptr->nents == 1), 0,
req->ifd_data[i].cmd_buf_offset);
data->sglistinfo_ptr[i].sizeOrCount =
(sg_ptr->nents == 1) ?
sg->length : sg_ptr->nents;
data->sglist_cnt = i + 1;
}
/* Deallocate the handle */
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
}
return ret;
err:
if (!IS_ERR_OR_NULL(ihandle))
ion_free(qseecom.ion_clnt, ihandle);
return -ENOMEM;
}
static int __qseecom_qteec_issue_cmd(struct qseecom_dev_handle *data,
struct qseecom_qteec_req *req, uint32_t cmd_id)
{
struct qseecom_command_scm_resp resp;
struct qseecom_qteec_ireq ireq;
struct qseecom_qteec_64bit_ireq ireq_64bit;
struct qseecom_registered_app_list *ptr_app;
bool found_app = false;
unsigned long flags;
int ret = 0;
int ret2 = 0;
uint32_t reqd_len_sb_in = 0;
void *cmd_buf = NULL;
size_t cmd_len;
struct sglist_info *table = data->sglistinfo_ptr;
void *req_ptr = NULL;
void *resp_ptr = NULL;
ret = __qseecom_qteec_validate_msg(data, req);
if (ret)
return ret;
req_ptr = req->req_ptr;
resp_ptr = req->resp_ptr;
/* find app_id & img_name from list */
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(ptr_app, &qseecom.registered_app_list_head,
list) {
if ((ptr_app->app_id == data->client.app_id) &&
(!strcmp(ptr_app->app_name, data->client.app_name))) {
found_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags);
if (!found_app) {
pr_err("app_id %d (%s) is not found\n", data->client.app_id,
(char *)data->client.app_name);
return -ENOENT;
}
req->req_ptr = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req->req_ptr);
req->resp_ptr = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req->resp_ptr);
if ((cmd_id == QSEOS_TEE_OPEN_SESSION) ||
(cmd_id == QSEOS_TEE_REQUEST_CANCELLATION)) {
ret = __qseecom_update_qteec_req_buf(
(struct qseecom_qteec_modfd_req *)req, data, false);
if (ret)
return ret;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
ireq.app_id = data->client.app_id;
ireq.req_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)req_ptr);
ireq.req_len = req->req_len;
ireq.resp_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)resp_ptr);
ireq.resp_len = req->resp_len;
ireq.sglistinfo_ptr = (uint32_t)virt_to_phys(table);
ireq.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
cmd_buf = (void *)&ireq;
cmd_len = sizeof(struct qseecom_qteec_ireq);
} else {
ireq_64bit.app_id = data->client.app_id;
ireq_64bit.req_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)req_ptr);
ireq_64bit.req_len = req->req_len;
ireq_64bit.resp_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)resp_ptr);
ireq_64bit.resp_len = req->resp_len;
if ((data->client.app_arch == ELFCLASS32) &&
((ireq_64bit.req_ptr >=
PHY_ADDR_4G - ireq_64bit.req_len) ||
(ireq_64bit.resp_ptr >=
PHY_ADDR_4G - ireq_64bit.resp_len))){
pr_err("32bit app %s (id: %d): phy_addr exceeds 4G\n",
data->client.app_name, data->client.app_id);
pr_err("req_ptr:%llx,req_len:%x,rsp_ptr:%llx,rsp_len:%x\n",
ireq_64bit.req_ptr, ireq_64bit.req_len,
ireq_64bit.resp_ptr, ireq_64bit.resp_len);
return -EFAULT;
}
ireq_64bit.sglistinfo_ptr = (uint64_t)virt_to_phys(table);
ireq_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
cmd_buf = (void *)&ireq_64bit;
cmd_len = sizeof(struct qseecom_qteec_64bit_ireq);
}
if (qseecom.whitelist_support == true
&& cmd_id == QSEOS_TEE_OPEN_SESSION)
*(uint32_t *)cmd_buf = QSEOS_TEE_OPEN_SESSION_WHITELIST;
else
*(uint32_t *)cmd_buf = cmd_id;
reqd_len_sb_in = req->req_len + req->resp_len;
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt,
reqd_len_sb_in,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
__qseecom_reentrancy_check_if_this_app_blocked(ptr_app);
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call() failed with err: %d (app_id = %d)\n",
ret, data->client.app_id);
goto exit;
}
if (qseecom.qsee_reentrancy_support) {
ret = __qseecom_process_reentrancy(&resp, ptr_app, data);
if (ret)
goto exit;
} else {
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd failed err: %d\n",
ret);
goto exit;
}
} else {
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("Response result %d not supported\n",
resp.result);
ret = -EINVAL;
goto exit;
}
}
}
exit:
ret2 = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt, data->client.sb_length,
ION_IOC_INV_CACHES);
if (ret2) {
pr_err("cache operation failed %d\n", ret);
return ret2;
}
if ((cmd_id == QSEOS_TEE_OPEN_SESSION) ||
(cmd_id == QSEOS_TEE_REQUEST_CANCELLATION)) {
ret2 = __qseecom_update_qteec_req_buf(
(struct qseecom_qteec_modfd_req *)req, data, true);
if (ret2)
return ret2;
}
return ret;
}
static int qseecom_qteec_open_session(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_qteec_modfd_req req;
int ret = 0;
ret = copy_from_user(&req, argp,
sizeof(struct qseecom_qteec_modfd_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
ret = __qseecom_qteec_issue_cmd(data, (struct qseecom_qteec_req *)&req,
QSEOS_TEE_OPEN_SESSION);
return ret;
}
static int qseecom_qteec_close_session(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_qteec_req req;
int ret = 0;
ret = copy_from_user(&req, argp, sizeof(struct qseecom_qteec_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
ret = __qseecom_qteec_issue_cmd(data, &req, QSEOS_TEE_CLOSE_SESSION);
return ret;
}
static int qseecom_qteec_invoke_modfd_cmd(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_qteec_modfd_req req;
struct qseecom_command_scm_resp resp;
struct qseecom_qteec_ireq ireq;
struct qseecom_qteec_64bit_ireq ireq_64bit;
struct qseecom_registered_app_list *ptr_app;
bool found_app = false;
unsigned long flags;
int ret = 0;
int i = 0;
uint32_t reqd_len_sb_in = 0;
void *cmd_buf = NULL;
size_t cmd_len;
struct sglist_info *table = data->sglistinfo_ptr;
void *req_ptr = NULL;
void *resp_ptr = NULL;
ret = copy_from_user(&req, argp,
sizeof(struct qseecom_qteec_modfd_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
ret = __qseecom_qteec_validate_msg(data,
(struct qseecom_qteec_req *)(&req));
if (ret)
return ret;
req_ptr = req.req_ptr;
resp_ptr = req.resp_ptr;
/* find app_id & img_name from list */
spin_lock_irqsave(&qseecom.registered_app_list_lock, flags);
list_for_each_entry(ptr_app, &qseecom.registered_app_list_head,
list) {
if ((ptr_app->app_id == data->client.app_id) &&
(!strcmp(ptr_app->app_name, data->client.app_name))) {
found_app = true;
break;
}
}
spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags);
if (!found_app) {
pr_err("app_id %d (%s) is not found\n", data->client.app_id,
(char *)data->client.app_name);
return -ENOENT;
}
/* validate offsets */
for (i = 0; i < MAX_ION_FD; i++) {
if (req.ifd_data[i].fd) {
if (req.ifd_data[i].cmd_buf_offset >= req.req_len)
return -EINVAL;
}
}
req.req_ptr = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req.req_ptr);
req.resp_ptr = (void *)__qseecom_uvirt_to_kvirt(data,
(uintptr_t)req.resp_ptr);
ret = __qseecom_update_qteec_req_buf(&req, data, false);
if (ret)
return ret;
if (qseecom.qsee_version < QSEE_VERSION_40) {
ireq.app_id = data->client.app_id;
ireq.req_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)req_ptr);
ireq.req_len = req.req_len;
ireq.resp_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)resp_ptr);
ireq.resp_len = req.resp_len;
cmd_buf = (void *)&ireq;
cmd_len = sizeof(struct qseecom_qteec_ireq);
ireq.sglistinfo_ptr = (uint32_t)virt_to_phys(table);
ireq.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
} else {
ireq_64bit.app_id = data->client.app_id;
ireq_64bit.req_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)req_ptr);
ireq_64bit.req_len = req.req_len;
ireq_64bit.resp_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data,
(uintptr_t)resp_ptr);
ireq_64bit.resp_len = req.resp_len;
cmd_buf = (void *)&ireq_64bit;
cmd_len = sizeof(struct qseecom_qteec_64bit_ireq);
ireq_64bit.sglistinfo_ptr = (uint64_t)virt_to_phys(table);
ireq_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE;
dmac_flush_range((void *)table,
(void *)table + SGLISTINFO_TABLE_SIZE);
}
reqd_len_sb_in = req.req_len + req.resp_len;
if (qseecom.whitelist_support == true)
*(uint32_t *)cmd_buf = QSEOS_TEE_INVOKE_COMMAND_WHITELIST;
else
*(uint32_t *)cmd_buf = QSEOS_TEE_INVOKE_COMMAND;
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt,
reqd_len_sb_in,
ION_IOC_CLEAN_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
__qseecom_reentrancy_check_if_this_app_blocked(ptr_app);
ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len,
&resp, sizeof(resp));
if (ret) {
pr_err("scm_call() failed with err: %d (app_id = %d)\n",
ret, data->client.app_id);
return ret;
}
if (qseecom.qsee_reentrancy_support) {
ret = __qseecom_process_reentrancy(&resp, ptr_app, data);
} else {
if (resp.result == QSEOS_RESULT_INCOMPLETE) {
ret = __qseecom_process_incomplete_cmd(data, &resp);
if (ret) {
pr_err("process_incomplete_cmd failed err: %d\n",
ret);
return ret;
}
} else {
if (resp.result != QSEOS_RESULT_SUCCESS) {
pr_err("Response result %d not supported\n",
resp.result);
ret = -EINVAL;
}
}
}
ret = __qseecom_update_qteec_req_buf(&req, data, true);
if (ret)
return ret;
ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle,
data->client.sb_virt, data->client.sb_length,
ION_IOC_INV_CACHES);
if (ret) {
pr_err("cache operation failed %d\n", ret);
return ret;
}
return 0;
}
static int qseecom_qteec_request_cancellation(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_qteec_modfd_req req;
int ret = 0;
ret = copy_from_user(&req, argp,
sizeof(struct qseecom_qteec_modfd_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
ret = __qseecom_qteec_issue_cmd(data, (struct qseecom_qteec_req *)&req,
QSEOS_TEE_REQUEST_CANCELLATION);
return ret;
}
static void __qseecom_clean_data_sglistinfo(struct qseecom_dev_handle *data)
{
if (data->sglist_cnt) {
memset(data->sglistinfo_ptr, 0,
SGLISTINFO_TABLE_SIZE);
data->sglist_cnt = 0;
}
}
static inline long qseecom_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
struct qseecom_dev_handle *data = file->private_data;
void __user *argp = (void __user *) arg;
bool perf_enabled = false;
if (!data) {
pr_err("Invalid/uninitialized device handle\n");
return -EINVAL;
}
if (data->abort) {
pr_err("Aborting qseecom driver\n");
return -ENODEV;
}
switch (cmd) {
case QSEECOM_IOCTL_REGISTER_LISTENER_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("reg lstnr req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
pr_debug("ioctl register_listener_req()\n");
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
data->type = QSEECOM_LISTENER_SERVICE;
ret = qseecom_register_listener(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed qseecom_register_listener: %d\n", ret);
break;
}
case QSEECOM_IOCTL_UNREGISTER_LISTENER_REQ: {
if ((data->listener.id == 0) ||
(data->type != QSEECOM_LISTENER_SERVICE)) {
pr_err("unreg lstnr req: invalid handle (%d) lid(%d)\n",
data->type, data->listener.id);
ret = -EINVAL;
break;
}
pr_debug("ioctl unregister_listener_req()\n");
__qseecom_listener_abort_all(1);
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_unregister_listener(data);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
__qseecom_listener_abort_all(0);
if (ret)
pr_err("failed qseecom_unregister_listener: %d\n", ret);
break;
}
case QSEECOM_IOCTL_SEND_CMD_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("send cmd req: invalid handle (%d) app_id(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
if (qseecom.support_bus_scaling) {
/* register bus bw in case the client doesn't do it */
if (!data->mode) {
mutex_lock(&qsee_bw_mutex);
__qseecom_register_bus_bandwidth_needs(
data, HIGH);
mutex_unlock(&qsee_bw_mutex);
}
ret = qseecom_scale_bus_bandwidth_timer(INACTIVE);
if (ret) {
pr_err("Failed to set bw.\n");
ret = -EINVAL;
mutex_unlock(&app_access_lock);
break;
}
}
/*
* On targets where crypto clock is handled by HLOS,
* if clk_access_cnt is zero and perf_enabled is false,
* then the crypto clock was not enabled before sending cmd to
* tz, qseecom will enable the clock to avoid service failure.
*/
if (!qseecom.no_clock_support &&
!qseecom.qsee.clk_access_cnt && !data->perf_enabled) {
pr_debug("ce clock is not enabled!\n");
ret = qseecom_perf_enable(data);
if (ret) {
pr_err("Failed to vote for clock with err %d\n",
ret);
mutex_unlock(&app_access_lock);
ret = -EINVAL;
break;
}
perf_enabled = true;
}
atomic_inc(&data->ioctl_count);
ret = qseecom_send_cmd(data, argp);
if (qseecom.support_bus_scaling)
__qseecom_add_bw_scale_down_timer(
QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
if (perf_enabled) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
}
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed qseecom_send_cmd: %d\n", ret);
break;
}
case QSEECOM_IOCTL_SEND_MODFD_CMD_REQ:
case QSEECOM_IOCTL_SEND_MODFD_CMD_64_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("send mdfd cmd: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
if (qseecom.support_bus_scaling) {
if (!data->mode) {
mutex_lock(&qsee_bw_mutex);
__qseecom_register_bus_bandwidth_needs(
data, HIGH);
mutex_unlock(&qsee_bw_mutex);
}
ret = qseecom_scale_bus_bandwidth_timer(INACTIVE);
if (ret) {
pr_err("Failed to set bw.\n");
mutex_unlock(&app_access_lock);
ret = -EINVAL;
break;
}
}
/*
* On targets where crypto clock is handled by HLOS,
* if clk_access_cnt is zero and perf_enabled is false,
* then the crypto clock was not enabled before sending cmd to
* tz, qseecom will enable the clock to avoid service failure.
*/
if (!qseecom.no_clock_support &&
!qseecom.qsee.clk_access_cnt && !data->perf_enabled) {
pr_debug("ce clock is not enabled!\n");
ret = qseecom_perf_enable(data);
if (ret) {
pr_err("Failed to vote for clock with err %d\n",
ret);
mutex_unlock(&app_access_lock);
ret = -EINVAL;
break;
}
perf_enabled = true;
}
atomic_inc(&data->ioctl_count);
if (cmd == QSEECOM_IOCTL_SEND_MODFD_CMD_REQ)
ret = qseecom_send_modfd_cmd(data, argp);
else
ret = qseecom_send_modfd_cmd_64(data, argp);
if (qseecom.support_bus_scaling)
__qseecom_add_bw_scale_down_timer(
QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
if (perf_enabled) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
}
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed qseecom_send_cmd: %d\n", ret);
__qseecom_clean_data_sglistinfo(data);
break;
}
case QSEECOM_IOCTL_RECEIVE_REQ: {
if ((data->listener.id == 0) ||
(data->type != QSEECOM_LISTENER_SERVICE)) {
pr_err("receive req: invalid handle (%d), lid(%d)\n",
data->type, data->listener.id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
ret = qseecom_receive_req(data);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
if (ret && (ret != -ERESTARTSYS))
pr_err("failed qseecom_receive_req: %d\n", ret);
break;
}
case QSEECOM_IOCTL_SEND_RESP_REQ: {
if ((data->listener.id == 0) ||
(data->type != QSEECOM_LISTENER_SERVICE)) {
pr_err("send resp req: invalid handle (%d), lid(%d)\n",
data->type, data->listener.id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
if (!qseecom.qsee_reentrancy_support)
ret = qseecom_send_resp();
else
ret = qseecom_reentrancy_send_resp(data);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
if (ret)
pr_err("failed qseecom_send_resp: %d\n", ret);
break;
}
case QSEECOM_IOCTL_SET_MEM_PARAM_REQ: {
if ((data->type != QSEECOM_CLIENT_APP) &&
(data->type != QSEECOM_GENERIC) &&
(data->type != QSEECOM_SECURE_SERVICE)) {
pr_err("set mem param req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
pr_debug("SET_MEM_PARAM: qseecom addr = 0x%pK\n", data);
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_set_client_mem_param(data, argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed Qqseecom_set_mem_param request: %d\n",
ret);
break;
}
case QSEECOM_IOCTL_LOAD_APP_REQ: {
if ((data->type != QSEECOM_GENERIC) &&
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("load app req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->type = QSEECOM_CLIENT_APP;
pr_debug("LOAD_APP_REQ: qseecom_addr = 0x%pK\n", data);
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_load_app(data, argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed load_app request: %d\n", ret);
break;
}
case QSEECOM_IOCTL_UNLOAD_APP_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("unload app req:invalid handle(%d) app_id(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
pr_debug("UNLOAD_APP: qseecom_addr = 0x%pK\n", data);
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_unload_app(data, false);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed unload_app request: %d\n", ret);
break;
}
case QSEECOM_IOCTL_GET_QSEOS_VERSION_REQ: {
atomic_inc(&data->ioctl_count);
ret = qseecom_get_qseos_version(data, argp);
if (ret)
pr_err("qseecom_get_qseos_version: %d\n", ret);
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_PERF_ENABLE_REQ:{
if ((data->type != QSEECOM_GENERIC) &&
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("perf enable req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
if ((data->type == QSEECOM_CLIENT_APP) &&
(data->client.app_id == 0)) {
pr_err("perf enable req:invalid handle(%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
__qseecom_register_bus_bandwidth_needs(data, HIGH);
mutex_unlock(&qsee_bw_mutex);
} else {
ret = qseecom_perf_enable(data);
if (ret)
pr_err("Fail to vote for clocks %d\n", ret);
}
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_PERF_DISABLE_REQ:{
if ((data->type != QSEECOM_SECURE_SERVICE) &&
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("perf disable req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
if ((data->type == QSEECOM_CLIENT_APP) &&
(data->client.app_id == 0)) {
pr_err("perf disable: invalid handle (%d)app_id(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
if (!qseecom.support_bus_scaling) {
qsee_disable_clock_vote(data, CLK_DFAB);
qsee_disable_clock_vote(data, CLK_SFPB);
} else {
mutex_lock(&qsee_bw_mutex);
qseecom_unregister_bus_bandwidth_needs(data);
mutex_unlock(&qsee_bw_mutex);
}
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_SET_BUS_SCALING_REQ: {
/* If crypto clock is not handled by HLOS, return directly. */
if (qseecom.no_clock_support) {
pr_debug("crypto clock is not handled by HLOS\n");
break;
}
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("set bus scale: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
ret = qseecom_scale_bus_bandwidth(data, argp);
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_LOAD_EXTERNAL_ELF_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("load ext elf req: invalid client handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->type = QSEECOM_UNAVAILABLE_CLIENT_APP;
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_load_external_elf(data, argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed load_external_elf request: %d\n", ret);
break;
}
case QSEECOM_IOCTL_UNLOAD_EXTERNAL_ELF_REQ: {
if (data->type != QSEECOM_UNAVAILABLE_CLIENT_APP) {
pr_err("unload ext elf req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_unload_external_elf(data);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed unload_app request: %d\n", ret);
break;
}
case QSEECOM_IOCTL_APP_LOADED_QUERY_REQ: {
data->type = QSEECOM_CLIENT_APP;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
pr_debug("APP_LOAD_QUERY: qseecom_addr = 0x%pK\n", data);
ret = qseecom_query_app_loaded(data, argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_SEND_CMD_SERVICE_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("send cmd svc req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->type = QSEECOM_SECURE_SERVICE;
if (qseecom.qsee_version < QSEE_VERSION_03) {
pr_err("SEND_CMD_SERVICE_REQ: Invalid qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_send_service_cmd(data, argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_CREATE_KEY_REQ: {
if (!(qseecom.support_pfe || qseecom.support_fde))
pr_err("Features requiring key init not supported\n");
if (data->type != QSEECOM_GENERIC) {
pr_err("create key req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_05) {
pr_err("Create Key feature unsupported: qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_create_key(data, argp);
if (ret)
pr_err("failed to create encryption key: %d\n", ret);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_WIPE_KEY_REQ: {
if (!(qseecom.support_pfe || qseecom.support_fde))
pr_err("Features requiring key init not supported\n");
if (data->type != QSEECOM_GENERIC) {
pr_err("wipe key req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_05) {
pr_err("Wipe Key feature unsupported in qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_wipe_key(data, argp);
if (ret)
pr_err("failed to wipe encryption key: %d\n", ret);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_UPDATE_KEY_USER_INFO_REQ: {
if (!(qseecom.support_pfe || qseecom.support_fde))
pr_err("Features requiring key init not supported\n");
if (data->type != QSEECOM_GENERIC) {
pr_err("update key req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_05) {
pr_err("Update Key feature unsupported in qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_update_key_user_info(data, argp);
if (ret)
pr_err("failed to update key user info: %d\n", ret);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_SAVE_PARTITION_HASH_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("save part hash req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_save_partition_hash(argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_IS_ES_ACTIVATED_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("ES activated req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_is_es_activated(argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_MDTP_CIPHER_DIP_REQ: {
if (data->type != QSEECOM_GENERIC) {
pr_err("MDTP cipher DIP req: invalid handle (%d)\n",
data->type);
ret = -EINVAL;
break;
}
data->released = true;
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_mdtp_cipher_dip(argp);
atomic_dec(&data->ioctl_count);
mutex_unlock(&app_access_lock);
break;
}
case QSEECOM_IOCTL_SEND_MODFD_RESP:
case QSEECOM_IOCTL_SEND_MODFD_RESP_64: {
if ((data->listener.id == 0) ||
(data->type != QSEECOM_LISTENER_SERVICE)) {
pr_err("receive req: invalid handle (%d), lid(%d)\n",
data->type, data->listener.id);
ret = -EINVAL;
break;
}
atomic_inc(&data->ioctl_count);
if (cmd == QSEECOM_IOCTL_SEND_MODFD_RESP)
ret = qseecom_send_modfd_resp(data, argp);
else
ret = qseecom_send_modfd_resp_64(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
if (ret)
pr_err("failed qseecom_send_mod_resp: %d\n", ret);
__qseecom_clean_data_sglistinfo(data);
break;
}
case QSEECOM_QTEEC_IOCTL_OPEN_SESSION_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("Open session: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
pr_err("GP feature unsupported: qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_qteec_open_session(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed open_session_cmd: %d\n", ret);
__qseecom_clean_data_sglistinfo(data);
break;
}
case QSEECOM_QTEEC_IOCTL_CLOSE_SESSION_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("Close session: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
pr_err("GP feature unsupported: qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_qteec_close_session(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed close_session_cmd: %d\n", ret);
break;
}
case QSEECOM_QTEEC_IOCTL_INVOKE_MODFD_CMD_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("Invoke cmd: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
pr_err("GP feature unsupported: qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_qteec_invoke_modfd_cmd(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed Invoke cmd: %d\n", ret);
__qseecom_clean_data_sglistinfo(data);
break;
}
case QSEECOM_QTEEC_IOCTL_REQUEST_CANCELLATION_REQ: {
if ((data->client.app_id == 0) ||
(data->type != QSEECOM_CLIENT_APP)) {
pr_err("Cancel req: invalid handle (%d) appid(%d)\n",
data->type, data->client.app_id);
ret = -EINVAL;
break;
}
if (qseecom.qsee_version < QSEE_VERSION_40) {
pr_err("GP feature unsupported: qsee ver %u\n",
qseecom.qsee_version);
return -EINVAL;
}
/* Only one client allowed here at a time */
mutex_lock(&app_access_lock);
atomic_inc(&data->ioctl_count);
ret = qseecom_qteec_request_cancellation(data, argp);
atomic_dec(&data->ioctl_count);
wake_up_all(&data->abort_wq);
mutex_unlock(&app_access_lock);
if (ret)
pr_err("failed request_cancellation: %d\n", ret);
break;
}
case QSEECOM_IOCTL_GET_CE_PIPE_INFO: {
atomic_inc(&data->ioctl_count);
ret = qseecom_get_ce_info(data, argp);
if (ret)
pr_err("failed get fde ce pipe info: %d\n", ret);
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_FREE_CE_PIPE_INFO: {
atomic_inc(&data->ioctl_count);
ret = qseecom_free_ce_info(data, argp);
if (ret)
pr_err("failed get fde ce pipe info: %d\n", ret);
atomic_dec(&data->ioctl_count);
break;
}
case QSEECOM_IOCTL_QUERY_CE_PIPE_INFO: {
atomic_inc(&data->ioctl_count);
ret = qseecom_query_ce_info(data, argp);
if (ret)
pr_err("failed get fde ce pipe info: %d\n", ret);
atomic_dec(&data->ioctl_count);
break;
}
default:
pr_err("Invalid IOCTL: 0x%x\n", cmd);
return -EINVAL;
}
return ret;
}
static int qseecom_open(struct inode *inode, struct file *file)
{
int ret = 0;
struct qseecom_dev_handle *data;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
file->private_data = data;
data->abort = 0;
data->type = QSEECOM_GENERIC;
data->released = false;
memset((void *)data->client.app_name, 0, MAX_APP_NAME_SIZE);
data->mode = INACTIVE;
init_waitqueue_head(&data->abort_wq);
atomic_set(&data->ioctl_count, 0);
return ret;
}
static int qseecom_release(struct inode *inode, struct file *file)
{
struct qseecom_dev_handle *data = file->private_data;
int ret = 0;
if (data->released == false) {
pr_debug("data: released=false, type=%d, mode=%d, data=0x%pK\n",
data->type, data->mode, data);
switch (data->type) {
case QSEECOM_LISTENER_SERVICE:
pr_warn("release lsnr svc %d\n", data->listener.id);
__qseecom_listener_abort_all(1);
mutex_lock(&app_access_lock);
ret = qseecom_unregister_listener(data);
mutex_unlock(&app_access_lock);
__qseecom_listener_abort_all(0);
break;
case QSEECOM_CLIENT_APP:
mutex_lock(&app_access_lock);
ret = qseecom_unload_app(data, true);
mutex_unlock(&app_access_lock);
break;
case QSEECOM_SECURE_SERVICE:
case QSEECOM_GENERIC:
ret = qseecom_unmap_ion_allocated_memory(data);
if (ret)
pr_err("Ion Unmap failed\n");
break;
case QSEECOM_UNAVAILABLE_CLIENT_APP:
break;
default:
pr_err("Unsupported clnt_handle_type %d",
data->type);
break;
}
}
if (qseecom.support_bus_scaling) {
mutex_lock(&qsee_bw_mutex);
if (data->mode != INACTIVE) {
qseecom_unregister_bus_bandwidth_needs(data);
if (qseecom.cumulative_mode == INACTIVE) {
ret = __qseecom_set_msm_bus_request(INACTIVE);
if (ret)
pr_err("Fail to scale down bus\n");
}
}
mutex_unlock(&qsee_bw_mutex);
} else {
if (data->fast_load_enabled == true)
qsee_disable_clock_vote(data, CLK_SFPB);
if (data->perf_enabled == true)
qsee_disable_clock_vote(data, CLK_DFAB);
}
kfree(data);
return ret;
}
#ifdef CONFIG_COMPAT
#include "compat_qseecom.c"
#else
#define compat_qseecom_ioctl NULL
#endif
static const struct file_operations qseecom_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = qseecom_ioctl,
.compat_ioctl = compat_qseecom_ioctl,
.open = qseecom_open,
.release = qseecom_release
};
static int __qseecom_init_clk(enum qseecom_ce_hw_instance ce)
{
int rc = 0;
struct device *pdev;
struct qseecom_clk *qclk;
char *core_clk_src = NULL;
char *core_clk = NULL;
char *iface_clk = NULL;
char *bus_clk = NULL;
switch (ce) {
case CLK_QSEE: {
core_clk_src = "core_clk_src";
core_clk = "core_clk";
iface_clk = "iface_clk";
bus_clk = "bus_clk";
qclk = &qseecom.qsee;
qclk->instance = CLK_QSEE;
break;
};
case CLK_CE_DRV: {
core_clk_src = "ce_drv_core_clk_src";
core_clk = "ce_drv_core_clk";
iface_clk = "ce_drv_iface_clk";
bus_clk = "ce_drv_bus_clk";
qclk = &qseecom.ce_drv;
qclk->instance = CLK_CE_DRV;
break;
};
default:
pr_err("Invalid ce hw instance: %d!\n", ce);
return -EIO;
}
if (qseecom.no_clock_support) {
qclk->ce_core_clk = NULL;
qclk->ce_clk = NULL;
qclk->ce_bus_clk = NULL;
qclk->ce_core_src_clk = NULL;
return 0;
}
pdev = qseecom.pdev;
/* Get CE3 src core clk. */
qclk->ce_core_src_clk = clk_get(pdev, core_clk_src);
if (!IS_ERR(qclk->ce_core_src_clk)) {
rc = clk_set_rate(qclk->ce_core_src_clk,
qseecom.ce_opp_freq_hz);
if (rc) {
clk_put(qclk->ce_core_src_clk);
qclk->ce_core_src_clk = NULL;
pr_err("Unable to set the core src clk @%uMhz.\n",
qseecom.ce_opp_freq_hz/CE_CLK_DIV);
return -EIO;
}
} else {
pr_warn("Unable to get CE core src clk, set to NULL\n");
qclk->ce_core_src_clk = NULL;
}
/* Get CE core clk */
qclk->ce_core_clk = clk_get(pdev, core_clk);
if (IS_ERR(qclk->ce_core_clk)) {
rc = PTR_ERR(qclk->ce_core_clk);
pr_err("Unable to get CE core clk\n");
if (qclk->ce_core_src_clk != NULL)
clk_put(qclk->ce_core_src_clk);
return -EIO;
}
/* Get CE Interface clk */
qclk->ce_clk = clk_get(pdev, iface_clk);
if (IS_ERR(qclk->ce_clk)) {
rc = PTR_ERR(qclk->ce_clk);
pr_err("Unable to get CE interface clk\n");
if (qclk->ce_core_src_clk != NULL)
clk_put(qclk->ce_core_src_clk);
clk_put(qclk->ce_core_clk);
return -EIO;
}
/* Get CE AXI clk */
qclk->ce_bus_clk = clk_get(pdev, bus_clk);
if (IS_ERR(qclk->ce_bus_clk)) {
rc = PTR_ERR(qclk->ce_bus_clk);
pr_err("Unable to get CE BUS interface clk\n");
if (qclk->ce_core_src_clk != NULL)
clk_put(qclk->ce_core_src_clk);
clk_put(qclk->ce_core_clk);
clk_put(qclk->ce_clk);
return -EIO;
}
return rc;
}
static void __qseecom_deinit_clk(enum qseecom_ce_hw_instance ce)
{
struct qseecom_clk *qclk;
if (ce == CLK_QSEE)
qclk = &qseecom.qsee;
else
qclk = &qseecom.ce_drv;
if (qclk->ce_clk != NULL) {
clk_put(qclk->ce_clk);
qclk->ce_clk = NULL;
}
if (qclk->ce_core_clk != NULL) {
clk_put(qclk->ce_core_clk);
qclk->ce_core_clk = NULL;
}
if (qclk->ce_bus_clk != NULL) {
clk_put(qclk->ce_bus_clk);
qclk->ce_bus_clk = NULL;
}
if (qclk->ce_core_src_clk != NULL) {
clk_put(qclk->ce_core_src_clk);
qclk->ce_core_src_clk = NULL;
}
qclk->instance = CLK_INVALID;
}
static int qseecom_retrieve_ce_data(struct platform_device *pdev)
{
int rc = 0;
uint32_t hlos_num_ce_hw_instances;
uint32_t disk_encrypt_pipe;
uint32_t file_encrypt_pipe;
uint32_t hlos_ce_hw_instance[MAX_CE_PIPE_PAIR_PER_UNIT] = {0};
int i;
const int *tbl;
int size;
int entry;
struct qseecom_crypto_info *pfde_tbl = NULL;
struct qseecom_crypto_info *p;
int tbl_size;
int j;
bool old_db = true;
struct qseecom_ce_info_use *pce_info_use;
uint32_t *unit_tbl = NULL;
int total_units = 0;
struct qseecom_ce_pipe_entry *pce_entry;
qseecom.ce_info.fde = qseecom.ce_info.pfe = NULL;
qseecom.ce_info.num_fde = qseecom.ce_info.num_pfe = 0;
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,qsee-ce-hw-instance",
&qseecom.ce_info.qsee_ce_hw_instance)) {
pr_err("Fail to get qsee ce hw instance information.\n");
rc = -EINVAL;
goto out;
} else {
pr_debug("qsee-ce-hw-instance=0x%x\n",
qseecom.ce_info.qsee_ce_hw_instance);
}
qseecom.support_fde = of_property_read_bool((&pdev->dev)->of_node,
"qcom,support-fde");
qseecom.support_pfe = of_property_read_bool((&pdev->dev)->of_node,
"qcom,support-pfe");
if (!qseecom.support_pfe && !qseecom.support_fde) {
pr_warn("Device does not support PFE/FDE");
goto out;
}
if (qseecom.support_fde)
tbl = of_get_property((&pdev->dev)->of_node,
"qcom,full-disk-encrypt-info", &size);
else
tbl = NULL;
if (tbl) {
old_db = false;
if (size % sizeof(struct qseecom_crypto_info)) {
pr_err("full-disk-encrypt-info tbl size(%d)\n",
size);
rc = -EINVAL;
goto out;
}
tbl_size = size / sizeof
(struct qseecom_crypto_info);
pfde_tbl = kzalloc(size, GFP_KERNEL);
unit_tbl = kcalloc(tbl_size, sizeof(int), GFP_KERNEL);
total_units = 0;
if (!pfde_tbl || !unit_tbl) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
if (of_property_read_u32_array((&pdev->dev)->of_node,
"qcom,full-disk-encrypt-info",
(u32 *)pfde_tbl, size/sizeof(u32))) {
pr_err("failed to read full-disk-encrypt-info tbl\n");
rc = -EINVAL;
goto out;
}
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
for (j = 0; j < total_units; j++) {
if (p->unit_num == *(unit_tbl + j))
break;
}
if (j == total_units) {
*(unit_tbl + total_units) = p->unit_num;
total_units++;
}
}
qseecom.ce_info.num_fde = total_units;
pce_info_use = qseecom.ce_info.fde = kcalloc(
total_units, sizeof(struct qseecom_ce_info_use),
GFP_KERNEL);
if (!pce_info_use) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (j = 0; j < total_units; j++, pce_info_use++) {
pce_info_use->unit_num = *(unit_tbl + j);
pce_info_use->alloc = false;
pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_FDE;
pce_info_use->num_ce_pipe_entries = 0;
pce_info_use->ce_pipe_entry = NULL;
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
if (p->unit_num == pce_info_use->unit_num)
pce_info_use->num_ce_pipe_entries++;
}
entry = pce_info_use->num_ce_pipe_entries;
pce_entry = pce_info_use->ce_pipe_entry =
kcalloc(entry,
sizeof(struct qseecom_ce_pipe_entry),
GFP_KERNEL);
if (pce_entry == NULL) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
if (p->unit_num == pce_info_use->unit_num) {
pce_entry->ce_num = p->ce;
pce_entry->ce_pipe_pair =
p->pipe_pair;
pce_entry->valid = true;
pce_entry++;
}
}
}
kfree(unit_tbl);
unit_tbl = NULL;
kfree(pfde_tbl);
pfde_tbl = NULL;
}
if (qseecom.support_pfe)
tbl = of_get_property((&pdev->dev)->of_node,
"qcom,per-file-encrypt-info", &size);
else
tbl = NULL;
if (tbl) {
old_db = false;
if (size % sizeof(struct qseecom_crypto_info)) {
pr_err("per-file-encrypt-info tbl size(%d)\n",
size);
rc = -EINVAL;
goto out;
}
tbl_size = size / sizeof
(struct qseecom_crypto_info);
pfde_tbl = kzalloc(size, GFP_KERNEL);
unit_tbl = kcalloc(tbl_size, sizeof(int), GFP_KERNEL);
total_units = 0;
if (!pfde_tbl || !unit_tbl) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
if (of_property_read_u32_array((&pdev->dev)->of_node,
"qcom,per-file-encrypt-info",
(u32 *)pfde_tbl, size/sizeof(u32))) {
pr_err("failed to read per-file-encrypt-info tbl\n");
rc = -EINVAL;
goto out;
}
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
for (j = 0; j < total_units; j++) {
if (p->unit_num == *(unit_tbl + j))
break;
}
if (j == total_units) {
*(unit_tbl + total_units) = p->unit_num;
total_units++;
}
}
qseecom.ce_info.num_pfe = total_units;
pce_info_use = qseecom.ce_info.pfe = kcalloc(
total_units, sizeof(struct qseecom_ce_info_use),
GFP_KERNEL);
if (!pce_info_use) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (j = 0; j < total_units; j++, pce_info_use++) {
pce_info_use->unit_num = *(unit_tbl + j);
pce_info_use->alloc = false;
pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_PFE;
pce_info_use->num_ce_pipe_entries = 0;
pce_info_use->ce_pipe_entry = NULL;
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
if (p->unit_num == pce_info_use->unit_num)
pce_info_use->num_ce_pipe_entries++;
}
entry = pce_info_use->num_ce_pipe_entries;
pce_entry = pce_info_use->ce_pipe_entry =
kcalloc(entry,
sizeof(struct qseecom_ce_pipe_entry),
GFP_KERNEL);
if (pce_entry == NULL) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) {
if (p->unit_num == pce_info_use->unit_num) {
pce_entry->ce_num = p->ce;
pce_entry->ce_pipe_pair =
p->pipe_pair;
pce_entry->valid = true;
pce_entry++;
}
}
}
kfree(unit_tbl);
unit_tbl = NULL;
kfree(pfde_tbl);
pfde_tbl = NULL;
}
if (!old_db)
goto out1;
if (of_property_read_bool((&pdev->dev)->of_node,
"qcom,support-multiple-ce-hw-instance")) {
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,hlos-num-ce-hw-instances",
&hlos_num_ce_hw_instances)) {
pr_err("Fail: get hlos number of ce hw instance\n");
rc = -EINVAL;
goto out;
}
} else {
hlos_num_ce_hw_instances = 1;
}
if (hlos_num_ce_hw_instances > MAX_CE_PIPE_PAIR_PER_UNIT) {
pr_err("Fail: hlos number of ce hw instance exceeds %d\n",
MAX_CE_PIPE_PAIR_PER_UNIT);
rc = -EINVAL;
goto out;
}
if (of_property_read_u32_array((&pdev->dev)->of_node,
"qcom,hlos-ce-hw-instance", hlos_ce_hw_instance,
hlos_num_ce_hw_instances)) {
pr_err("Fail: get hlos ce hw instance info\n");
rc = -EINVAL;
goto out;
}
if (qseecom.support_fde) {
pce_info_use = qseecom.ce_info.fde =
kzalloc(sizeof(struct qseecom_ce_info_use), GFP_KERNEL);
if (!pce_info_use) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
/* by default for old db */
qseecom.ce_info.num_fde = DEFAULT_NUM_CE_INFO_UNIT;
pce_info_use->unit_num = DEFAULT_CE_INFO_UNIT;
pce_info_use->alloc = false;
pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_FDE;
pce_info_use->ce_pipe_entry = NULL;
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,disk-encrypt-pipe-pair",
&disk_encrypt_pipe)) {
pr_err("Fail to get FDE pipe information.\n");
rc = -EINVAL;
goto out;
} else {
pr_debug("disk-encrypt-pipe-pair=0x%x",
disk_encrypt_pipe);
}
entry = pce_info_use->num_ce_pipe_entries =
hlos_num_ce_hw_instances;
pce_entry = pce_info_use->ce_pipe_entry =
kcalloc(entry,
sizeof(struct qseecom_ce_pipe_entry),
GFP_KERNEL);
if (pce_entry == NULL) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (i = 0; i < entry; i++) {
pce_entry->ce_num = hlos_ce_hw_instance[i];
pce_entry->ce_pipe_pair = disk_encrypt_pipe;
pce_entry->valid = 1;
pce_entry++;
}
} else {
pr_warn("Device does not support FDE");
disk_encrypt_pipe = 0xff;
}
if (qseecom.support_pfe) {
pce_info_use = qseecom.ce_info.pfe =
kzalloc(sizeof(struct qseecom_ce_info_use), GFP_KERNEL);
if (!pce_info_use) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
/* by default for old db */
qseecom.ce_info.num_pfe = DEFAULT_NUM_CE_INFO_UNIT;
pce_info_use->unit_num = DEFAULT_CE_INFO_UNIT;
pce_info_use->alloc = false;
pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_PFE;
pce_info_use->ce_pipe_entry = NULL;
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,file-encrypt-pipe-pair",
&file_encrypt_pipe)) {
pr_err("Fail to get PFE pipe information.\n");
rc = -EINVAL;
goto out;
} else {
pr_debug("file-encrypt-pipe-pair=0x%x",
file_encrypt_pipe);
}
entry = pce_info_use->num_ce_pipe_entries =
hlos_num_ce_hw_instances;
pce_entry = pce_info_use->ce_pipe_entry =
kcalloc(entry,
sizeof(struct qseecom_ce_pipe_entry),
GFP_KERNEL);
if (pce_entry == NULL) {
pr_err("failed to alloc memory\n");
rc = -ENOMEM;
goto out;
}
for (i = 0; i < entry; i++) {
pce_entry->ce_num = hlos_ce_hw_instance[i];
pce_entry->ce_pipe_pair = file_encrypt_pipe;
pce_entry->valid = 1;
pce_entry++;
}
} else {
pr_warn("Device does not support PFE");
file_encrypt_pipe = 0xff;
}
out1:
qseecom.qsee.instance = qseecom.ce_info.qsee_ce_hw_instance;
qseecom.ce_drv.instance = hlos_ce_hw_instance[0];
out:
if (rc) {
if (qseecom.ce_info.fde) {
pce_info_use = qseecom.ce_info.fde;
for (i = 0; i < qseecom.ce_info.num_fde; i++) {
pce_entry = pce_info_use->ce_pipe_entry;
kfree(pce_entry);
pce_info_use++;
}
}
kfree(qseecom.ce_info.fde);
qseecom.ce_info.fde = NULL;
if (qseecom.ce_info.pfe) {
pce_info_use = qseecom.ce_info.pfe;
for (i = 0; i < qseecom.ce_info.num_pfe; i++) {
pce_entry = pce_info_use->ce_pipe_entry;
kfree(pce_entry);
pce_info_use++;
}
}
kfree(qseecom.ce_info.pfe);
qseecom.ce_info.pfe = NULL;
}
kfree(unit_tbl);
kfree(pfde_tbl);
return rc;
}
static int qseecom_get_ce_info(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_ce_info_req req;
struct qseecom_ce_info_req *pinfo = &req;
int ret = 0;
int i;
unsigned int entries;
struct qseecom_ce_info_use *pce_info_use, *p;
int total = 0;
bool found = false;
struct qseecom_ce_pipe_entry *pce_entry;
ret = copy_from_user(pinfo, argp,
sizeof(struct qseecom_ce_info_req));
if (ret) {
pr_err("copy_from_user failed\n");
return ret;
}
switch (pinfo->usage) {
case QSEOS_KM_USAGE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION:
if (qseecom.support_fde) {
p = qseecom.ce_info.fde;
total = qseecom.ce_info.num_fde;
} else {
pr_err("system does not support fde\n");
return -EINVAL;
}
break;
case QSEOS_KM_USAGE_FILE_ENCRYPTION:
if (qseecom.support_pfe) {
p = qseecom.ce_info.pfe;
total = qseecom.ce_info.num_pfe;
} else {
pr_err("system does not support pfe\n");
return -EINVAL;
}
break;
default:
pr_err("unsupported usage %d\n", pinfo->usage);
return -EINVAL;
}
pce_info_use = NULL;
for (i = 0; i < total; i++) {
if (!p->alloc)
pce_info_use = p;
else if (!memcmp(p->handle, pinfo->handle,
MAX_CE_INFO_HANDLE_SIZE)) {
pce_info_use = p;
found = true;
break;
}
p++;
}
if (pce_info_use == NULL)
return -EBUSY;
pinfo->unit_num = pce_info_use->unit_num;
if (!pce_info_use->alloc) {
pce_info_use->alloc = true;
memcpy(pce_info_use->handle,
pinfo->handle, MAX_CE_INFO_HANDLE_SIZE);
}
if (pce_info_use->num_ce_pipe_entries >
MAX_CE_PIPE_PAIR_PER_UNIT)
entries = MAX_CE_PIPE_PAIR_PER_UNIT;
else
entries = pce_info_use->num_ce_pipe_entries;
pinfo->num_ce_pipe_entries = entries;
pce_entry = pce_info_use->ce_pipe_entry;
for (i = 0; i < entries; i++, pce_entry++)
pinfo->ce_pipe_entry[i] = *pce_entry;
for (; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++)
pinfo->ce_pipe_entry[i].valid = 0;
if (copy_to_user(argp, pinfo, sizeof(struct qseecom_ce_info_req))) {
pr_err("copy_to_user failed\n");
ret = -EFAULT;
}
return ret;
}
static int qseecom_free_ce_info(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_ce_info_req req;
struct qseecom_ce_info_req *pinfo = &req;
int ret = 0;
struct qseecom_ce_info_use *p;
int total = 0;
int i;
bool found = false;
ret = copy_from_user(pinfo, argp,
sizeof(struct qseecom_ce_info_req));
if (ret)
return ret;
switch (pinfo->usage) {
case QSEOS_KM_USAGE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION:
if (qseecom.support_fde) {
p = qseecom.ce_info.fde;
total = qseecom.ce_info.num_fde;
} else {
pr_err("system does not support fde\n");
return -EINVAL;
}
break;
case QSEOS_KM_USAGE_FILE_ENCRYPTION:
if (qseecom.support_pfe) {
p = qseecom.ce_info.pfe;
total = qseecom.ce_info.num_pfe;
} else {
pr_err("system does not support pfe\n");
return -EINVAL;
}
break;
default:
pr_err("unsupported usage %d\n", pinfo->usage);
return -EINVAL;
}
for (i = 0; i < total; i++) {
if (p->alloc &&
!memcmp(p->handle, pinfo->handle,
MAX_CE_INFO_HANDLE_SIZE)) {
memset(p->handle, 0, MAX_CE_INFO_HANDLE_SIZE);
p->alloc = false;
found = true;
break;
}
p++;
}
return ret;
}
static int qseecom_query_ce_info(struct qseecom_dev_handle *data,
void __user *argp)
{
struct qseecom_ce_info_req req;
struct qseecom_ce_info_req *pinfo = &req;
int ret = 0;
int i;
unsigned int entries;
struct qseecom_ce_info_use *pce_info_use, *p;
int total = 0;
bool found = false;
struct qseecom_ce_pipe_entry *pce_entry;
ret = copy_from_user(pinfo, argp,
sizeof(struct qseecom_ce_info_req));
if (ret)
return ret;
switch (pinfo->usage) {
case QSEOS_KM_USAGE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION:
case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION:
if (qseecom.support_fde) {
p = qseecom.ce_info.fde;
total = qseecom.ce_info.num_fde;
} else {
pr_err("system does not support fde\n");
return -EINVAL;
}
break;
case QSEOS_KM_USAGE_FILE_ENCRYPTION:
if (qseecom.support_pfe) {
p = qseecom.ce_info.pfe;
total = qseecom.ce_info.num_pfe;
} else {
pr_err("system does not support pfe\n");
return -EINVAL;
}
break;
default:
pr_err("unsupported usage %d\n", pinfo->usage);
return -EINVAL;
}
pce_info_use = NULL;
pinfo->unit_num = INVALID_CE_INFO_UNIT_NUM;
pinfo->num_ce_pipe_entries = 0;
for (i = 0; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++)
pinfo->ce_pipe_entry[i].valid = 0;
for (i = 0; i < total; i++) {
if (p->alloc && !memcmp(p->handle,
pinfo->handle, MAX_CE_INFO_HANDLE_SIZE)) {
pce_info_use = p;
found = true;
break;
}
p++;
}
if (!pce_info_use)
goto out;
pinfo->unit_num = pce_info_use->unit_num;
if (pce_info_use->num_ce_pipe_entries >
MAX_CE_PIPE_PAIR_PER_UNIT)
entries = MAX_CE_PIPE_PAIR_PER_UNIT;
else
entries = pce_info_use->num_ce_pipe_entries;
pinfo->num_ce_pipe_entries = entries;
pce_entry = pce_info_use->ce_pipe_entry;
for (i = 0; i < entries; i++, pce_entry++)
pinfo->ce_pipe_entry[i] = *pce_entry;
for (; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++)
pinfo->ce_pipe_entry[i].valid = 0;
out:
if (copy_to_user(argp, pinfo, sizeof(struct qseecom_ce_info_req))) {
pr_err("copy_to_user failed\n");
ret = -EFAULT;
}
return ret;
}
/*
* Check whitelist feature, and if TZ feature version is < 1.0.0,
* then whitelist feature is not supported.
*/
static int qseecom_check_whitelist_feature(void)
{
int version = scm_get_feat_version(FEATURE_ID_WHITELIST);
return version >= MAKE_WHITELIST_VERSION(1, 0, 0);
}
static int qseecom_probe(struct platform_device *pdev)
{
int rc;
int i;
uint32_t feature = 10;
struct device *class_dev;
struct msm_bus_scale_pdata *qseecom_platform_support = NULL;
struct qseecom_command_scm_resp resp;
struct qseecom_ce_info_use *pce_info_use = NULL;
qseecom.qsee_bw_count = 0;
qseecom.qsee_perf_client = 0;
qseecom.qsee_sfpb_bw_count = 0;
qseecom.qsee.ce_core_clk = NULL;
qseecom.qsee.ce_clk = NULL;
qseecom.qsee.ce_core_src_clk = NULL;
qseecom.qsee.ce_bus_clk = NULL;
qseecom.cumulative_mode = 0;
qseecom.current_mode = INACTIVE;
qseecom.support_bus_scaling = false;
qseecom.support_fde = false;
qseecom.support_pfe = false;
qseecom.ce_drv.ce_core_clk = NULL;
qseecom.ce_drv.ce_clk = NULL;
qseecom.ce_drv.ce_core_src_clk = NULL;
qseecom.ce_drv.ce_bus_clk = NULL;
atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_NOT_READY);
qseecom.app_block_ref_cnt = 0;
init_waitqueue_head(&qseecom.app_block_wq);
qseecom.whitelist_support = true;
rc = alloc_chrdev_region(&qseecom_device_no, 0, 1, QSEECOM_DEV);
if (rc < 0) {
pr_err("alloc_chrdev_region failed %d\n", rc);
return rc;
}
driver_class = class_create(THIS_MODULE, QSEECOM_DEV);
if (IS_ERR(driver_class)) {
rc = -ENOMEM;
pr_err("class_create failed %d\n", rc);
goto exit_unreg_chrdev_region;
}
class_dev = device_create(driver_class, NULL, qseecom_device_no, NULL,
QSEECOM_DEV);
if (IS_ERR(class_dev)) {
pr_err("class_device_create failed %d\n", rc);
rc = -ENOMEM;
goto exit_destroy_class;
}
cdev_init(&qseecom.cdev, &qseecom_fops);
qseecom.cdev.owner = THIS_MODULE;
rc = cdev_add(&qseecom.cdev, MKDEV(MAJOR(qseecom_device_no), 0), 1);
if (rc < 0) {
pr_err("cdev_add failed %d\n", rc);
goto exit_destroy_device;
}
INIT_LIST_HEAD(&qseecom.registered_listener_list_head);
spin_lock_init(&qseecom.registered_listener_list_lock);
INIT_LIST_HEAD(&qseecom.registered_app_list_head);
spin_lock_init(&qseecom.registered_app_list_lock);
INIT_LIST_HEAD(&qseecom.registered_kclient_list_head);
spin_lock_init(&qseecom.registered_kclient_list_lock);
init_waitqueue_head(&qseecom.send_resp_wq);
qseecom.send_resp_flag = 0;
qseecom.qsee_version = QSEEE_VERSION_00;
rc = qseecom_scm_call(6, 3, &feature, sizeof(feature),
&resp, sizeof(resp));
pr_info("qseecom.qsee_version = 0x%x\n", resp.result);
if (rc) {
pr_err("Failed to get QSEE version info %d\n", rc);
goto exit_del_cdev;
}
qseecom.qsee_version = resp.result;
qseecom.qseos_version = QSEOS_VERSION_14;
qseecom.commonlib_loaded = false;
qseecom.commonlib64_loaded = false;
qseecom.pdev = class_dev;
/* Create ION msm client */
qseecom.ion_clnt = msm_ion_client_create("qseecom-kernel");
if (IS_ERR_OR_NULL(qseecom.ion_clnt)) {
pr_err("Ion client cannot be created\n");
rc = -ENOMEM;
goto exit_del_cdev;
}
/* register client for bus scaling */
if (pdev->dev.of_node) {
qseecom.pdev->of_node = pdev->dev.of_node;
qseecom.support_bus_scaling =
of_property_read_bool((&pdev->dev)->of_node,
"qcom,support-bus-scaling");
rc = qseecom_retrieve_ce_data(pdev);
if (rc)
goto exit_destroy_ion_client;
qseecom.appsbl_qseecom_support =
of_property_read_bool((&pdev->dev)->of_node,
"qcom,appsbl-qseecom-support");
pr_debug("qseecom.appsbl_qseecom_support = 0x%x",
qseecom.appsbl_qseecom_support);
qseecom.commonlib64_loaded =
of_property_read_bool((&pdev->dev)->of_node,
"qcom,commonlib64-loaded-by-uefi");
pr_debug("qseecom.commonlib64-loaded-by-uefi = 0x%x",
qseecom.commonlib64_loaded);
qseecom.fde_key_size =
of_property_read_bool((&pdev->dev)->of_node,
"qcom,fde-key-size");
qseecom.no_clock_support =
of_property_read_bool((&pdev->dev)->of_node,
"qcom,no-clock-support");
if (!qseecom.no_clock_support) {
pr_info("qseecom clocks handled by other subsystem\n");
} else {
pr_info("no-clock-support=0x%x",
qseecom.no_clock_support);
}
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,qsee-reentrancy-support",
&qseecom.qsee_reentrancy_support)) {
pr_warn("qsee reentrancy support phase is not defined, setting to default 0\n");
qseecom.qsee_reentrancy_support = 0;
} else {
pr_warn("qseecom.qsee_reentrancy_support = %d\n",
qseecom.qsee_reentrancy_support);
}
/*
* The qseecom bus scaling flag can not be enabled when
* crypto clock is not handled by HLOS.
*/
if (qseecom.no_clock_support && qseecom.support_bus_scaling) {
pr_err("support_bus_scaling flag can not be enabled.\n");
rc = -EINVAL;
goto exit_destroy_ion_client;
}
if (of_property_read_u32((&pdev->dev)->of_node,
"qcom,ce-opp-freq",
&qseecom.ce_opp_freq_hz)) {
pr_debug("CE operating frequency is not defined, setting to default 100MHZ\n");
qseecom.ce_opp_freq_hz = QSEE_CE_CLK_100MHZ;
}
rc = __qseecom_init_clk(CLK_QSEE);
if (rc)
goto exit_destroy_ion_client;
if ((qseecom.qsee.instance != qseecom.ce_drv.instance) &&
(qseecom.support_pfe || qseecom.support_fde)) {
rc = __qseecom_init_clk(CLK_CE_DRV);
if (rc) {
__qseecom_deinit_clk(CLK_QSEE);
goto exit_destroy_ion_client;
}
} else {
struct qseecom_clk *qclk;
qclk = &qseecom.qsee;
qseecom.ce_drv.ce_core_clk = qclk->ce_core_clk;
qseecom.ce_drv.ce_clk = qclk->ce_clk;
qseecom.ce_drv.ce_core_src_clk = qclk->ce_core_src_clk;
qseecom.ce_drv.ce_bus_clk = qclk->ce_bus_clk;
}
qseecom_platform_support = (struct msm_bus_scale_pdata *)
msm_bus_cl_get_pdata(pdev);
if (qseecom.qsee_version >= (QSEE_VERSION_02) &&
(!qseecom.is_apps_region_protected &&
!qseecom.appsbl_qseecom_support)) {
struct resource *resource = NULL;
struct qsee_apps_region_info_ireq req;
struct qsee_apps_region_info_64bit_ireq req_64bit;
struct qseecom_command_scm_resp resp;
void *cmd_buf = NULL;
size_t cmd_len;
resource = platform_get_resource_byname(pdev,
IORESOURCE_MEM, "secapp-region");
if (resource) {
if (qseecom.qsee_version < QSEE_VERSION_40) {
req.qsee_cmd_id =
QSEOS_APP_REGION_NOTIFICATION;
req.addr = (uint32_t)resource->start;
req.size = resource_size(resource);
cmd_buf = (void *)&req;
cmd_len = sizeof(struct
qsee_apps_region_info_ireq);
pr_warn("secure app region addr=0x%x size=0x%x",
req.addr, req.size);
} else {
req_64bit.qsee_cmd_id =
QSEOS_APP_REGION_NOTIFICATION;
req_64bit.addr = resource->start;
req_64bit.size = resource_size(
resource);
cmd_buf = (void *)&req_64bit;
cmd_len = sizeof(struct
qsee_apps_region_info_64bit_ireq);
pr_warn("secure app region addr=0x%llx size=0x%x",
req_64bit.addr, req_64bit.size);
}
} else {
pr_err("Fail to get secure app region info\n");
rc = -EINVAL;
goto exit_deinit_clock;
}
rc = __qseecom_enable_clk(CLK_QSEE);
if (rc) {
pr_err("CLK_QSEE enabling failed (%d)\n", rc);
rc = -EIO;
goto exit_deinit_clock;
}
rc = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1,
cmd_buf, cmd_len,
&resp, sizeof(resp));
__qseecom_disable_clk(CLK_QSEE);
if (rc || (resp.result != QSEOS_RESULT_SUCCESS)) {
pr_err("send secapp reg fail %d resp.res %d\n",
rc, resp.result);
rc = -EINVAL;
goto exit_deinit_clock;
}
}
/*
* By default, appsbl only loads cmnlib. If OEM changes appsbl to
* load cmnlib64 too, while cmnlib64 img is not present in non_hlos.bin,
* Pls add "qseecom.commonlib64_loaded = true" here too.
*/
if (qseecom.is_apps_region_protected ||
qseecom.appsbl_qseecom_support)
qseecom.commonlib_loaded = true;
} else {
qseecom_platform_support = (struct msm_bus_scale_pdata *)
pdev->dev.platform_data;
}
if (qseecom.support_bus_scaling) {
init_timer(&(qseecom.bw_scale_down_timer));
INIT_WORK(&qseecom.bw_inactive_req_ws,
qseecom_bw_inactive_req_work);
qseecom.bw_scale_down_timer.function =
qseecom_scale_bus_bandwidth_timer_callback;
}
qseecom.timer_running = false;
qseecom.qsee_perf_client = msm_bus_scale_register_client(
qseecom_platform_support);
qseecom.whitelist_support = qseecom_check_whitelist_feature();
pr_warn("qseecom.whitelist_support = %d\n",
qseecom.whitelist_support);
if (!qseecom.qsee_perf_client)
pr_err("Unable to register bus client\n");
atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_READY);
return 0;
exit_deinit_clock:
__qseecom_deinit_clk(CLK_QSEE);
if ((qseecom.qsee.instance != qseecom.ce_drv.instance) &&
(qseecom.support_pfe || qseecom.support_fde))
__qseecom_deinit_clk(CLK_CE_DRV);
exit_destroy_ion_client:
if (qseecom.ce_info.fde) {
pce_info_use = qseecom.ce_info.fde;
for (i = 0; i < qseecom.ce_info.num_fde; i++) {
kzfree(pce_info_use->ce_pipe_entry);
pce_info_use++;
}
kfree(qseecom.ce_info.fde);
}
if (qseecom.ce_info.pfe) {
pce_info_use = qseecom.ce_info.pfe;
for (i = 0; i < qseecom.ce_info.num_pfe; i++) {
kzfree(pce_info_use->ce_pipe_entry);
pce_info_use++;
}
kfree(qseecom.ce_info.pfe);
}
ion_client_destroy(qseecom.ion_clnt);
exit_del_cdev:
cdev_del(&qseecom.cdev);
exit_destroy_device:
device_destroy(driver_class, qseecom_device_no);
exit_destroy_class:
class_destroy(driver_class);
exit_unreg_chrdev_region:
unregister_chrdev_region(qseecom_device_no, 1);
return rc;
}
static int qseecom_remove(struct platform_device *pdev)
{
struct qseecom_registered_kclient_list *kclient = NULL;
struct qseecom_registered_kclient_list *kclient_tmp = NULL;
unsigned long flags = 0;
int ret = 0;
int i;
struct qseecom_ce_pipe_entry *pce_entry;
struct qseecom_ce_info_use *pce_info_use;
atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_NOT_READY);
spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags);
list_for_each_entry_safe(kclient, kclient_tmp,
&qseecom.registered_kclient_list_head, list) {
/* Break the loop if client handle is NULL */
if (!kclient->handle) {
list_del(&kclient->list);
kzfree(kclient);
break;
}
list_del(&kclient->list);
mutex_lock(&app_access_lock);
ret = qseecom_unload_app(kclient->handle->dev, false);
mutex_unlock(&app_access_lock);
if (!ret) {
kzfree(kclient->handle->dev);
kzfree(kclient->handle);
kzfree(kclient);
}
}
spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags);
if (qseecom.qseos_version > QSEEE_VERSION_00)
qseecom_unload_commonlib_image();
if (qseecom.qsee_perf_client)
msm_bus_scale_client_update_request(qseecom.qsee_perf_client,
0);
if (pdev->dev.platform_data != NULL)
msm_bus_scale_unregister_client(qseecom.qsee_perf_client);
if (qseecom.support_bus_scaling) {
cancel_work_sync(&qseecom.bw_inactive_req_ws);
del_timer_sync(&qseecom.bw_scale_down_timer);
}
if (qseecom.ce_info.fde) {
pce_info_use = qseecom.ce_info.fde;
for (i = 0; i < qseecom.ce_info.num_fde; i++) {
pce_entry = pce_info_use->ce_pipe_entry;
kfree(pce_entry);
pce_info_use++;
}
}
kfree(qseecom.ce_info.fde);
if (qseecom.ce_info.pfe) {
pce_info_use = qseecom.ce_info.pfe;
for (i = 0; i < qseecom.ce_info.num_pfe; i++) {
pce_entry = pce_info_use->ce_pipe_entry;
kfree(pce_entry);
pce_info_use++;
}
}
kfree(qseecom.ce_info.pfe);
/* register client for bus scaling */
if (pdev->dev.of_node) {
__qseecom_deinit_clk(CLK_QSEE);
if ((qseecom.qsee.instance != qseecom.ce_drv.instance) &&
(qseecom.support_pfe || qseecom.support_fde))
__qseecom_deinit_clk(CLK_CE_DRV);
}
ion_client_destroy(qseecom.ion_clnt);
cdev_del(&qseecom.cdev);
device_destroy(driver_class, qseecom_device_no);
class_destroy(driver_class);
unregister_chrdev_region(qseecom_device_no, 1);
return ret;
}
static int qseecom_suspend(struct platform_device *pdev, pm_message_t state)
{
int ret = 0;
struct qseecom_clk *qclk;
qclk = &qseecom.qsee;
atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_SUSPEND);
if (qseecom.no_clock_support)
return 0;
mutex_lock(&qsee_bw_mutex);
mutex_lock(&clk_access_lock);
if (qseecom.current_mode != INACTIVE) {
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, INACTIVE);
if (ret)
pr_err("Fail to scale down bus\n");
else
qseecom.current_mode = INACTIVE;
}
if (qclk->clk_access_cnt) {
if (qclk->ce_clk != NULL)
clk_disable_unprepare(qclk->ce_clk);
if (qclk->ce_core_clk != NULL)
clk_disable_unprepare(qclk->ce_core_clk);
if (qclk->ce_bus_clk != NULL)
clk_disable_unprepare(qclk->ce_bus_clk);
}
del_timer_sync(&(qseecom.bw_scale_down_timer));
qseecom.timer_running = false;
mutex_unlock(&clk_access_lock);
mutex_unlock(&qsee_bw_mutex);
cancel_work_sync(&qseecom.bw_inactive_req_ws);
return 0;
}
static int qseecom_resume(struct platform_device *pdev)
{
int mode = 0;
int ret = 0;
struct qseecom_clk *qclk;
qclk = &qseecom.qsee;
if (qseecom.no_clock_support)
goto exit;
mutex_lock(&qsee_bw_mutex);
mutex_lock(&clk_access_lock);
if (qseecom.cumulative_mode >= HIGH)
mode = HIGH;
else
mode = qseecom.cumulative_mode;
if (qseecom.cumulative_mode != INACTIVE) {
ret = msm_bus_scale_client_update_request(
qseecom.qsee_perf_client, mode);
if (ret)
pr_err("Fail to scale up bus to %d\n", mode);
else
qseecom.current_mode = mode;
}
if (qclk->clk_access_cnt) {
if (qclk->ce_core_clk != NULL) {
ret = clk_prepare_enable(qclk->ce_core_clk);
if (ret) {
pr_err("Unable to enable/prep CE core clk\n");
qclk->clk_access_cnt = 0;
goto err;
}
}
if (qclk->ce_clk != NULL) {
ret = clk_prepare_enable(qclk->ce_clk);
if (ret) {
pr_err("Unable to enable/prep CE iface clk\n");
qclk->clk_access_cnt = 0;
goto ce_clk_err;
}
}
if (qclk->ce_bus_clk != NULL) {
ret = clk_prepare_enable(qclk->ce_bus_clk);
if (ret) {
pr_err("Unable to enable/prep CE bus clk\n");
qclk->clk_access_cnt = 0;
goto ce_bus_clk_err;
}
}
}
if (qclk->clk_access_cnt || qseecom.cumulative_mode) {
qseecom.bw_scale_down_timer.expires = jiffies +
msecs_to_jiffies(QSEECOM_SEND_CMD_CRYPTO_TIMEOUT);
mod_timer(&(qseecom.bw_scale_down_timer),
qseecom.bw_scale_down_timer.expires);
qseecom.timer_running = true;
}
mutex_unlock(&clk_access_lock);
mutex_unlock(&qsee_bw_mutex);
goto exit;
ce_bus_clk_err:
if (qclk->ce_clk)
clk_disable_unprepare(qclk->ce_clk);
ce_clk_err:
if (qclk->ce_core_clk)
clk_disable_unprepare(qclk->ce_core_clk);
err:
mutex_unlock(&clk_access_lock);
mutex_unlock(&qsee_bw_mutex);
ret = -EIO;
exit:
atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_READY);
return ret;
}
static const struct of_device_id qseecom_match[] = {
{
.compatible = "qcom,qseecom",
},
{}
};
static struct platform_driver qseecom_plat_driver = {
.probe = qseecom_probe,
.remove = qseecom_remove,
.suspend = qseecom_suspend,
.resume = qseecom_resume,
.driver = {
.name = "qseecom",
.owner = THIS_MODULE,
.of_match_table = qseecom_match,
},
};
static int qseecom_init(void)
{
return platform_driver_register(&qseecom_plat_driver);
}
static void qseecom_exit(void)
{
platform_driver_unregister(&qseecom_plat_driver);
}
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("QTI Secure Execution Environment Communicator");
module_init(qseecom_init);
module_exit(qseecom_exit);