AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1 | /* |
| 2 | * QTI Secure Execution Environment Communicator (QSEECOM) driver |
| 3 | * |
| 4 | * Copyright (c) 2012-2017, The Linux Foundation. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 and |
| 8 | * only version 2 as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | #define pr_fmt(fmt) "QSEECOM: %s: " fmt, __func__ |
| 17 | |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/fs.h> |
| 22 | #include <linux/platform_device.h> |
| 23 | #include <linux/debugfs.h> |
| 24 | #include <linux/cdev.h> |
| 25 | #include <linux/uaccess.h> |
| 26 | #include <linux/sched.h> |
| 27 | #include <linux/list.h> |
| 28 | #include <linux/mutex.h> |
| 29 | #include <linux/io.h> |
| 30 | #include <linux/msm_ion.h> |
| 31 | #include <linux/types.h> |
| 32 | #include <linux/clk.h> |
| 33 | #include <linux/qseecom.h> |
| 34 | #include <linux/elf.h> |
| 35 | #include <linux/firmware.h> |
| 36 | #include <linux/freezer.h> |
| 37 | #include <linux/scatterlist.h> |
| 38 | #include <linux/regulator/consumer.h> |
| 39 | #include <linux/dma-mapping.h> |
| 40 | #include <soc/qcom/subsystem_restart.h> |
| 41 | #include <soc/qcom/scm.h> |
| 42 | #include <soc/qcom/socinfo.h> |
| 43 | #include <linux/msm-bus.h> |
| 44 | #include <linux/msm-bus-board.h> |
| 45 | #include <soc/qcom/qseecomi.h> |
| 46 | #include <asm/cacheflush.h> |
| 47 | #include "qseecom_kernel.h" |
| 48 | #include <crypto/ice.h> |
| 49 | #include <linux/delay.h> |
| 50 | |
| 51 | #include <linux/compat.h> |
| 52 | #include "compat_qseecom.h" |
| 53 | |
| 54 | #define QSEECOM_DEV "qseecom" |
| 55 | #define QSEOS_VERSION_14 0x14 |
| 56 | #define QSEEE_VERSION_00 0x400000 |
| 57 | #define QSEE_VERSION_01 0x401000 |
| 58 | #define QSEE_VERSION_02 0x402000 |
| 59 | #define QSEE_VERSION_03 0x403000 |
| 60 | #define QSEE_VERSION_04 0x404000 |
| 61 | #define QSEE_VERSION_05 0x405000 |
| 62 | #define QSEE_VERSION_20 0x800000 |
| 63 | #define QSEE_VERSION_40 0x1000000 /* TZ.BF.4.0 */ |
| 64 | |
| 65 | #define QSEE_CE_CLK_100MHZ 100000000 |
| 66 | #define CE_CLK_DIV 1000000 |
| 67 | |
| 68 | #define QSEECOM_MAX_SG_ENTRY 512 |
| 69 | #define QSEECOM_SG_ENTRY_MSG_BUF_SZ_64BIT \ |
| 70 | (QSEECOM_MAX_SG_ENTRY * SG_ENTRY_SZ_64BIT) |
| 71 | |
| 72 | #define QSEECOM_INVALID_KEY_ID 0xff |
| 73 | |
| 74 | /* Save partition image hash for authentication check */ |
| 75 | #define SCM_SAVE_PARTITION_HASH_ID 0x01 |
| 76 | |
| 77 | /* Check if enterprise security is activate */ |
| 78 | #define SCM_IS_ACTIVATED_ID 0x02 |
| 79 | |
| 80 | /* Encrypt/Decrypt Data Integrity Partition (DIP) for MDTP */ |
| 81 | #define SCM_MDTP_CIPHER_DIP 0x01 |
| 82 | |
| 83 | /* Maximum Allowed Size (128K) of Data Integrity Partition (DIP) for MDTP */ |
| 84 | #define MAX_DIP 0x20000 |
| 85 | |
| 86 | #define RPMB_SERVICE 0x2000 |
| 87 | #define SSD_SERVICE 0x3000 |
| 88 | |
| 89 | #define QSEECOM_SEND_CMD_CRYPTO_TIMEOUT 2000 |
| 90 | #define QSEECOM_LOAD_APP_CRYPTO_TIMEOUT 2000 |
| 91 | #define TWO 2 |
| 92 | #define QSEECOM_UFS_ICE_CE_NUM 10 |
| 93 | #define QSEECOM_SDCC_ICE_CE_NUM 20 |
| 94 | #define QSEECOM_ICE_FDE_KEY_INDEX 0 |
| 95 | |
| 96 | #define PHY_ADDR_4G (1ULL<<32) |
| 97 | |
| 98 | #define QSEECOM_STATE_NOT_READY 0 |
| 99 | #define QSEECOM_STATE_SUSPEND 1 |
| 100 | #define QSEECOM_STATE_READY 2 |
| 101 | #define QSEECOM_ICE_FDE_KEY_SIZE_MASK 2 |
| 102 | |
| 103 | /* |
| 104 | * default ce info unit to 0 for |
| 105 | * services which |
| 106 | * support only single instance. |
| 107 | * Most of services are in this category. |
| 108 | */ |
| 109 | #define DEFAULT_CE_INFO_UNIT 0 |
| 110 | #define DEFAULT_NUM_CE_INFO_UNIT 1 |
| 111 | |
| 112 | enum qseecom_clk_definitions { |
| 113 | CLK_DFAB = 0, |
| 114 | CLK_SFPB, |
| 115 | }; |
| 116 | |
| 117 | enum qseecom_ice_key_size_type { |
| 118 | QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE = |
| 119 | (0 << QSEECOM_ICE_FDE_KEY_SIZE_MASK), |
| 120 | QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE = |
| 121 | (1 << QSEECOM_ICE_FDE_KEY_SIZE_MASK), |
| 122 | QSEE_ICE_FDE_KEY_SIZE_UNDEFINED = |
| 123 | (0xF << QSEECOM_ICE_FDE_KEY_SIZE_MASK), |
| 124 | }; |
| 125 | |
| 126 | enum qseecom_client_handle_type { |
| 127 | QSEECOM_CLIENT_APP = 1, |
| 128 | QSEECOM_LISTENER_SERVICE, |
| 129 | QSEECOM_SECURE_SERVICE, |
| 130 | QSEECOM_GENERIC, |
| 131 | QSEECOM_UNAVAILABLE_CLIENT_APP, |
| 132 | }; |
| 133 | |
| 134 | enum qseecom_ce_hw_instance { |
| 135 | CLK_QSEE = 0, |
| 136 | CLK_CE_DRV, |
| 137 | CLK_INVALID, |
| 138 | }; |
| 139 | |
| 140 | static struct class *driver_class; |
| 141 | static dev_t qseecom_device_no; |
| 142 | |
| 143 | static DEFINE_MUTEX(qsee_bw_mutex); |
| 144 | static DEFINE_MUTEX(app_access_lock); |
| 145 | static DEFINE_MUTEX(clk_access_lock); |
| 146 | |
| 147 | struct sglist_info { |
| 148 | uint32_t indexAndFlags; |
| 149 | uint32_t sizeOrCount; |
| 150 | }; |
| 151 | |
| 152 | /* |
| 153 | * The 31th bit indicates only one or multiple physical address inside |
| 154 | * the request buffer. If it is set, the index locates a single physical addr |
| 155 | * inside the request buffer, and `sizeOrCount` is the size of the memory being |
| 156 | * shared at that physical address. |
| 157 | * Otherwise, the index locates an array of {start, len} pairs (a |
| 158 | * "scatter/gather list"), and `sizeOrCount` gives the number of entries in |
| 159 | * that array. |
| 160 | * |
| 161 | * The 30th bit indicates 64 or 32bit address; when it is set, physical addr |
| 162 | * and scatter gather entry sizes are 64-bit values. Otherwise, 32-bit values. |
| 163 | * |
| 164 | * The bits [0:29] of `indexAndFlags` hold an offset into the request buffer. |
| 165 | */ |
| 166 | #define SGLISTINFO_SET_INDEX_FLAG(c, s, i) \ |
| 167 | ((uint32_t)(((c & 1) << 31) | ((s & 1) << 30) | (i & 0x3fffffff))) |
| 168 | |
| 169 | #define SGLISTINFO_TABLE_SIZE (sizeof(struct sglist_info) * MAX_ION_FD) |
| 170 | |
| 171 | #define FEATURE_ID_WHITELIST 15 /*whitelist feature id*/ |
| 172 | |
| 173 | #define MAKE_WHITELIST_VERSION(major, minor, patch) \ |
| 174 | (((major & 0x3FF) << 22) | ((minor & 0x3FF) << 12) | (patch & 0xFFF)) |
| 175 | |
| 176 | struct qseecom_registered_listener_list { |
| 177 | struct list_head list; |
| 178 | struct qseecom_register_listener_req svc; |
| 179 | void *user_virt_sb_base; |
| 180 | u8 *sb_virt; |
| 181 | phys_addr_t sb_phys; |
| 182 | size_t sb_length; |
| 183 | struct ion_handle *ihandle; /* Retrieve phy addr */ |
| 184 | wait_queue_head_t rcv_req_wq; |
| 185 | int rcv_req_flag; |
| 186 | int send_resp_flag; |
| 187 | bool listener_in_use; |
| 188 | /* wq for thread blocked on this listener*/ |
| 189 | wait_queue_head_t listener_block_app_wq; |
| 190 | struct sglist_info sglistinfo_ptr[MAX_ION_FD]; |
| 191 | uint32_t sglist_cnt; |
| 192 | }; |
| 193 | |
| 194 | struct qseecom_registered_app_list { |
| 195 | struct list_head list; |
| 196 | u32 app_id; |
| 197 | u32 ref_cnt; |
| 198 | char app_name[MAX_APP_NAME_SIZE]; |
| 199 | u32 app_arch; |
| 200 | bool app_blocked; |
| 201 | u32 blocked_on_listener_id; |
| 202 | }; |
| 203 | |
| 204 | struct qseecom_registered_kclient_list { |
| 205 | struct list_head list; |
| 206 | struct qseecom_handle *handle; |
| 207 | }; |
| 208 | |
| 209 | struct qseecom_ce_info_use { |
| 210 | unsigned char handle[MAX_CE_INFO_HANDLE_SIZE]; |
| 211 | unsigned int unit_num; |
| 212 | unsigned int num_ce_pipe_entries; |
| 213 | struct qseecom_ce_pipe_entry *ce_pipe_entry; |
| 214 | bool alloc; |
| 215 | uint32_t type; |
| 216 | }; |
| 217 | |
| 218 | struct ce_hw_usage_info { |
| 219 | uint32_t qsee_ce_hw_instance; |
| 220 | uint32_t num_fde; |
| 221 | struct qseecom_ce_info_use *fde; |
| 222 | uint32_t num_pfe; |
| 223 | struct qseecom_ce_info_use *pfe; |
| 224 | }; |
| 225 | |
| 226 | struct qseecom_clk { |
| 227 | enum qseecom_ce_hw_instance instance; |
| 228 | struct clk *ce_core_clk; |
| 229 | struct clk *ce_clk; |
| 230 | struct clk *ce_core_src_clk; |
| 231 | struct clk *ce_bus_clk; |
| 232 | uint32_t clk_access_cnt; |
| 233 | }; |
| 234 | |
| 235 | struct qseecom_control { |
| 236 | struct ion_client *ion_clnt; /* Ion client */ |
| 237 | struct list_head registered_listener_list_head; |
| 238 | spinlock_t registered_listener_list_lock; |
| 239 | |
| 240 | struct list_head registered_app_list_head; |
| 241 | spinlock_t registered_app_list_lock; |
| 242 | |
| 243 | struct list_head registered_kclient_list_head; |
| 244 | spinlock_t registered_kclient_list_lock; |
| 245 | |
| 246 | wait_queue_head_t send_resp_wq; |
| 247 | int send_resp_flag; |
| 248 | |
| 249 | uint32_t qseos_version; |
| 250 | uint32_t qsee_version; |
| 251 | struct device *pdev; |
| 252 | bool whitelist_support; |
| 253 | bool commonlib_loaded; |
| 254 | bool commonlib64_loaded; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 255 | struct ce_hw_usage_info ce_info; |
| 256 | |
| 257 | int qsee_bw_count; |
| 258 | int qsee_sfpb_bw_count; |
| 259 | |
| 260 | uint32_t qsee_perf_client; |
| 261 | struct qseecom_clk qsee; |
| 262 | struct qseecom_clk ce_drv; |
| 263 | |
| 264 | bool support_bus_scaling; |
| 265 | bool support_fde; |
| 266 | bool support_pfe; |
| 267 | bool fde_key_size; |
| 268 | uint32_t cumulative_mode; |
| 269 | enum qseecom_bandwidth_request_mode current_mode; |
| 270 | struct timer_list bw_scale_down_timer; |
| 271 | struct work_struct bw_inactive_req_ws; |
| 272 | struct cdev cdev; |
| 273 | bool timer_running; |
| 274 | bool no_clock_support; |
| 275 | unsigned int ce_opp_freq_hz; |
| 276 | bool appsbl_qseecom_support; |
| 277 | uint32_t qsee_reentrancy_support; |
| 278 | |
| 279 | uint32_t app_block_ref_cnt; |
| 280 | wait_queue_head_t app_block_wq; |
| 281 | atomic_t qseecom_state; |
| 282 | int is_apps_region_protected; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 283 | bool smcinvoke_support; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 284 | }; |
| 285 | |
| 286 | struct qseecom_sec_buf_fd_info { |
| 287 | bool is_sec_buf_fd; |
| 288 | size_t size; |
| 289 | void *vbase; |
| 290 | dma_addr_t pbase; |
| 291 | }; |
| 292 | |
| 293 | struct qseecom_param_memref { |
| 294 | uint32_t buffer; |
| 295 | uint32_t size; |
| 296 | }; |
| 297 | |
| 298 | struct qseecom_client_handle { |
| 299 | u32 app_id; |
| 300 | u8 *sb_virt; |
| 301 | phys_addr_t sb_phys; |
| 302 | unsigned long user_virt_sb_base; |
| 303 | size_t sb_length; |
| 304 | struct ion_handle *ihandle; /* Retrieve phy addr */ |
| 305 | char app_name[MAX_APP_NAME_SIZE]; |
| 306 | u32 app_arch; |
| 307 | struct qseecom_sec_buf_fd_info sec_buf_fd[MAX_ION_FD]; |
| 308 | }; |
| 309 | |
| 310 | struct qseecom_listener_handle { |
| 311 | u32 id; |
| 312 | }; |
| 313 | |
| 314 | static struct qseecom_control qseecom; |
| 315 | |
| 316 | struct qseecom_dev_handle { |
| 317 | enum qseecom_client_handle_type type; |
| 318 | union { |
| 319 | struct qseecom_client_handle client; |
| 320 | struct qseecom_listener_handle listener; |
| 321 | }; |
| 322 | bool released; |
| 323 | int abort; |
| 324 | wait_queue_head_t abort_wq; |
| 325 | atomic_t ioctl_count; |
| 326 | bool perf_enabled; |
| 327 | bool fast_load_enabled; |
| 328 | enum qseecom_bandwidth_request_mode mode; |
| 329 | struct sglist_info sglistinfo_ptr[MAX_ION_FD]; |
| 330 | uint32_t sglist_cnt; |
| 331 | bool use_legacy_cmd; |
| 332 | }; |
| 333 | |
| 334 | struct qseecom_key_id_usage_desc { |
| 335 | uint8_t desc[QSEECOM_KEY_ID_SIZE]; |
| 336 | }; |
| 337 | |
| 338 | struct qseecom_crypto_info { |
| 339 | unsigned int unit_num; |
| 340 | unsigned int ce; |
| 341 | unsigned int pipe_pair; |
| 342 | }; |
| 343 | |
| 344 | static struct qseecom_key_id_usage_desc key_id_array[] = { |
| 345 | { |
| 346 | .desc = "Undefined Usage Index", |
| 347 | }, |
| 348 | |
| 349 | { |
| 350 | .desc = "Full Disk Encryption", |
| 351 | }, |
| 352 | |
| 353 | { |
| 354 | .desc = "Per File Encryption", |
| 355 | }, |
| 356 | |
| 357 | { |
| 358 | .desc = "UFS ICE Full Disk Encryption", |
| 359 | }, |
| 360 | |
| 361 | { |
| 362 | .desc = "SDCC ICE Full Disk Encryption", |
| 363 | }, |
| 364 | }; |
| 365 | |
| 366 | /* Function proto types */ |
| 367 | static int qsee_vote_for_clock(struct qseecom_dev_handle *, int32_t); |
| 368 | static void qsee_disable_clock_vote(struct qseecom_dev_handle *, int32_t); |
| 369 | static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce); |
| 370 | static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce); |
| 371 | static int __qseecom_init_clk(enum qseecom_ce_hw_instance ce); |
| 372 | static int qseecom_load_commonlib_image(struct qseecom_dev_handle *data, |
| 373 | char *cmnlib_name); |
| 374 | static int qseecom_enable_ice_setup(int usage); |
| 375 | static int qseecom_disable_ice_setup(int usage); |
| 376 | static void __qseecom_reentrancy_check_if_no_app_blocked(uint32_t smc_id); |
| 377 | static int qseecom_get_ce_info(struct qseecom_dev_handle *data, |
| 378 | void __user *argp); |
| 379 | static int qseecom_free_ce_info(struct qseecom_dev_handle *data, |
| 380 | void __user *argp); |
| 381 | static int qseecom_query_ce_info(struct qseecom_dev_handle *data, |
| 382 | void __user *argp); |
| 383 | |
| 384 | static int get_qseecom_keymaster_status(char *str) |
| 385 | { |
| 386 | get_option(&str, &qseecom.is_apps_region_protected); |
| 387 | return 1; |
| 388 | } |
| 389 | __setup("androidboot.keymaster=", get_qseecom_keymaster_status); |
| 390 | |
| 391 | static int qseecom_scm_call2(uint32_t svc_id, uint32_t tz_cmd_id, |
| 392 | const void *req_buf, void *resp_buf) |
| 393 | { |
| 394 | int ret = 0; |
| 395 | uint32_t smc_id = 0; |
| 396 | uint32_t qseos_cmd_id = 0; |
| 397 | struct scm_desc desc = {0}; |
| 398 | struct qseecom_command_scm_resp *scm_resp = NULL; |
| 399 | |
| 400 | if (!req_buf || !resp_buf) { |
| 401 | pr_err("Invalid buffer pointer\n"); |
| 402 | return -EINVAL; |
| 403 | } |
| 404 | qseos_cmd_id = *(uint32_t *)req_buf; |
| 405 | scm_resp = (struct qseecom_command_scm_resp *)resp_buf; |
| 406 | |
| 407 | switch (svc_id) { |
| 408 | case 6: { |
| 409 | if (tz_cmd_id == 3) { |
| 410 | smc_id = TZ_INFO_GET_FEATURE_VERSION_ID; |
| 411 | desc.arginfo = TZ_INFO_GET_FEATURE_VERSION_ID_PARAM_ID; |
| 412 | desc.args[0] = *(uint32_t *)req_buf; |
| 413 | } else { |
| 414 | pr_err("Unsupported svc_id %d, tz_cmd_id %d\n", |
| 415 | svc_id, tz_cmd_id); |
| 416 | return -EINVAL; |
| 417 | } |
| 418 | ret = scm_call2(smc_id, &desc); |
| 419 | break; |
| 420 | } |
| 421 | case SCM_SVC_ES: { |
| 422 | switch (tz_cmd_id) { |
| 423 | case SCM_SAVE_PARTITION_HASH_ID: { |
| 424 | u32 tzbuflen = PAGE_ALIGN(SHA256_DIGEST_LENGTH); |
| 425 | struct qseecom_save_partition_hash_req *p_hash_req = |
| 426 | (struct qseecom_save_partition_hash_req *) |
| 427 | req_buf; |
| 428 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 429 | |
| 430 | if (!tzbuf) |
| 431 | return -ENOMEM; |
| 432 | memset(tzbuf, 0, tzbuflen); |
| 433 | memcpy(tzbuf, p_hash_req->digest, |
| 434 | SHA256_DIGEST_LENGTH); |
| 435 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 436 | smc_id = TZ_ES_SAVE_PARTITION_HASH_ID; |
| 437 | desc.arginfo = TZ_ES_SAVE_PARTITION_HASH_ID_PARAM_ID; |
| 438 | desc.args[0] = p_hash_req->partition_id; |
| 439 | desc.args[1] = virt_to_phys(tzbuf); |
| 440 | desc.args[2] = SHA256_DIGEST_LENGTH; |
| 441 | ret = scm_call2(smc_id, &desc); |
| 442 | kzfree(tzbuf); |
| 443 | break; |
| 444 | } |
| 445 | default: { |
| 446 | pr_err("tz_cmd_id %d is not supported by scm_call2\n", |
| 447 | tz_cmd_id); |
| 448 | ret = -EINVAL; |
| 449 | break; |
| 450 | } |
| 451 | } /* end of switch (tz_cmd_id) */ |
| 452 | break; |
| 453 | } /* end of case SCM_SVC_ES */ |
| 454 | case SCM_SVC_TZSCHEDULER: { |
| 455 | switch (qseos_cmd_id) { |
| 456 | case QSEOS_APP_START_COMMAND: { |
| 457 | struct qseecom_load_app_ireq *req; |
| 458 | struct qseecom_load_app_64bit_ireq *req_64bit; |
| 459 | |
| 460 | smc_id = TZ_OS_APP_START_ID; |
| 461 | desc.arginfo = TZ_OS_APP_START_ID_PARAM_ID; |
| 462 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 463 | req = (struct qseecom_load_app_ireq *)req_buf; |
| 464 | desc.args[0] = req->mdt_len; |
| 465 | desc.args[1] = req->img_len; |
| 466 | desc.args[2] = req->phy_addr; |
| 467 | } else { |
| 468 | req_64bit = |
| 469 | (struct qseecom_load_app_64bit_ireq *) |
| 470 | req_buf; |
| 471 | desc.args[0] = req_64bit->mdt_len; |
| 472 | desc.args[1] = req_64bit->img_len; |
| 473 | desc.args[2] = req_64bit->phy_addr; |
| 474 | } |
| 475 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 476 | ret = scm_call2(smc_id, &desc); |
| 477 | break; |
| 478 | } |
| 479 | case QSEOS_APP_SHUTDOWN_COMMAND: { |
| 480 | struct qseecom_unload_app_ireq *req; |
| 481 | |
| 482 | req = (struct qseecom_unload_app_ireq *)req_buf; |
| 483 | smc_id = TZ_OS_APP_SHUTDOWN_ID; |
| 484 | desc.arginfo = TZ_OS_APP_SHUTDOWN_ID_PARAM_ID; |
| 485 | desc.args[0] = req->app_id; |
| 486 | ret = scm_call2(smc_id, &desc); |
| 487 | break; |
| 488 | } |
| 489 | case QSEOS_APP_LOOKUP_COMMAND: { |
| 490 | struct qseecom_check_app_ireq *req; |
| 491 | u32 tzbuflen = PAGE_ALIGN(sizeof(req->app_name)); |
| 492 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 493 | |
| 494 | if (!tzbuf) |
| 495 | return -ENOMEM; |
| 496 | req = (struct qseecom_check_app_ireq *)req_buf; |
| 497 | pr_debug("Lookup app_name = %s\n", req->app_name); |
| 498 | strlcpy(tzbuf, req->app_name, sizeof(req->app_name)); |
| 499 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 500 | smc_id = TZ_OS_APP_LOOKUP_ID; |
| 501 | desc.arginfo = TZ_OS_APP_LOOKUP_ID_PARAM_ID; |
| 502 | desc.args[0] = virt_to_phys(tzbuf); |
| 503 | desc.args[1] = strlen(req->app_name); |
| 504 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 505 | ret = scm_call2(smc_id, &desc); |
| 506 | kzfree(tzbuf); |
| 507 | break; |
| 508 | } |
| 509 | case QSEOS_APP_REGION_NOTIFICATION: { |
| 510 | struct qsee_apps_region_info_ireq *req; |
| 511 | struct qsee_apps_region_info_64bit_ireq *req_64bit; |
| 512 | |
| 513 | smc_id = TZ_OS_APP_REGION_NOTIFICATION_ID; |
| 514 | desc.arginfo = |
| 515 | TZ_OS_APP_REGION_NOTIFICATION_ID_PARAM_ID; |
| 516 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 517 | req = (struct qsee_apps_region_info_ireq *) |
| 518 | req_buf; |
| 519 | desc.args[0] = req->addr; |
| 520 | desc.args[1] = req->size; |
| 521 | } else { |
| 522 | req_64bit = |
| 523 | (struct qsee_apps_region_info_64bit_ireq *) |
| 524 | req_buf; |
| 525 | desc.args[0] = req_64bit->addr; |
| 526 | desc.args[1] = req_64bit->size; |
| 527 | } |
| 528 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 529 | ret = scm_call2(smc_id, &desc); |
| 530 | break; |
| 531 | } |
| 532 | case QSEOS_LOAD_SERV_IMAGE_COMMAND: { |
| 533 | struct qseecom_load_lib_image_ireq *req; |
| 534 | struct qseecom_load_lib_image_64bit_ireq *req_64bit; |
| 535 | |
| 536 | smc_id = TZ_OS_LOAD_SERVICES_IMAGE_ID; |
| 537 | desc.arginfo = TZ_OS_LOAD_SERVICES_IMAGE_ID_PARAM_ID; |
| 538 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 539 | req = (struct qseecom_load_lib_image_ireq *) |
| 540 | req_buf; |
| 541 | desc.args[0] = req->mdt_len; |
| 542 | desc.args[1] = req->img_len; |
| 543 | desc.args[2] = req->phy_addr; |
| 544 | } else { |
| 545 | req_64bit = |
| 546 | (struct qseecom_load_lib_image_64bit_ireq *) |
| 547 | req_buf; |
| 548 | desc.args[0] = req_64bit->mdt_len; |
| 549 | desc.args[1] = req_64bit->img_len; |
| 550 | desc.args[2] = req_64bit->phy_addr; |
| 551 | } |
| 552 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 553 | ret = scm_call2(smc_id, &desc); |
| 554 | break; |
| 555 | } |
| 556 | case QSEOS_UNLOAD_SERV_IMAGE_COMMAND: { |
| 557 | smc_id = TZ_OS_UNLOAD_SERVICES_IMAGE_ID; |
| 558 | desc.arginfo = TZ_OS_UNLOAD_SERVICES_IMAGE_ID_PARAM_ID; |
| 559 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 560 | ret = scm_call2(smc_id, &desc); |
| 561 | break; |
| 562 | } |
| 563 | case QSEOS_REGISTER_LISTENER: { |
| 564 | struct qseecom_register_listener_ireq *req; |
| 565 | struct qseecom_register_listener_64bit_ireq *req_64bit; |
| 566 | |
| 567 | desc.arginfo = |
| 568 | TZ_OS_REGISTER_LISTENER_ID_PARAM_ID; |
| 569 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 570 | req = (struct qseecom_register_listener_ireq *) |
| 571 | req_buf; |
| 572 | desc.args[0] = req->listener_id; |
| 573 | desc.args[1] = req->sb_ptr; |
| 574 | desc.args[2] = req->sb_len; |
| 575 | } else { |
| 576 | req_64bit = |
| 577 | (struct qseecom_register_listener_64bit_ireq *) |
| 578 | req_buf; |
| 579 | desc.args[0] = req_64bit->listener_id; |
| 580 | desc.args[1] = req_64bit->sb_ptr; |
| 581 | desc.args[2] = req_64bit->sb_len; |
| 582 | } |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 583 | qseecom.smcinvoke_support = true; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 584 | smc_id = TZ_OS_REGISTER_LISTENER_SMCINVOKE_ID; |
| 585 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 586 | ret = scm_call2(smc_id, &desc); |
| 587 | if (ret) { |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 588 | qseecom.smcinvoke_support = false; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 589 | smc_id = TZ_OS_REGISTER_LISTENER_ID; |
| 590 | __qseecom_reentrancy_check_if_no_app_blocked( |
| 591 | smc_id); |
| 592 | ret = scm_call2(smc_id, &desc); |
| 593 | } |
| 594 | break; |
| 595 | } |
| 596 | case QSEOS_DEREGISTER_LISTENER: { |
| 597 | struct qseecom_unregister_listener_ireq *req; |
| 598 | |
| 599 | req = (struct qseecom_unregister_listener_ireq *) |
| 600 | req_buf; |
| 601 | smc_id = TZ_OS_DEREGISTER_LISTENER_ID; |
| 602 | desc.arginfo = TZ_OS_DEREGISTER_LISTENER_ID_PARAM_ID; |
| 603 | desc.args[0] = req->listener_id; |
| 604 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 605 | ret = scm_call2(smc_id, &desc); |
| 606 | break; |
| 607 | } |
| 608 | case QSEOS_LISTENER_DATA_RSP_COMMAND: { |
| 609 | struct qseecom_client_listener_data_irsp *req; |
| 610 | |
| 611 | req = (struct qseecom_client_listener_data_irsp *) |
| 612 | req_buf; |
| 613 | smc_id = TZ_OS_LISTENER_RESPONSE_HANDLER_ID; |
| 614 | desc.arginfo = |
| 615 | TZ_OS_LISTENER_RESPONSE_HANDLER_ID_PARAM_ID; |
| 616 | desc.args[0] = req->listener_id; |
| 617 | desc.args[1] = req->status; |
| 618 | ret = scm_call2(smc_id, &desc); |
| 619 | break; |
| 620 | } |
| 621 | case QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST: { |
| 622 | struct qseecom_client_listener_data_irsp *req; |
| 623 | struct qseecom_client_listener_data_64bit_irsp *req_64; |
| 624 | |
| 625 | smc_id = |
| 626 | TZ_OS_LISTENER_RESPONSE_HANDLER_WITH_WHITELIST_ID; |
| 627 | desc.arginfo = |
| 628 | TZ_OS_LISTENER_RESPONSE_HANDLER_WITH_WHITELIST_PARAM_ID; |
| 629 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 630 | req = |
| 631 | (struct qseecom_client_listener_data_irsp *) |
| 632 | req_buf; |
| 633 | desc.args[0] = req->listener_id; |
| 634 | desc.args[1] = req->status; |
| 635 | desc.args[2] = req->sglistinfo_ptr; |
| 636 | desc.args[3] = req->sglistinfo_len; |
| 637 | } else { |
| 638 | req_64 = |
| 639 | (struct qseecom_client_listener_data_64bit_irsp *) |
| 640 | req_buf; |
| 641 | desc.args[0] = req_64->listener_id; |
| 642 | desc.args[1] = req_64->status; |
| 643 | desc.args[2] = req_64->sglistinfo_ptr; |
| 644 | desc.args[3] = req_64->sglistinfo_len; |
| 645 | } |
| 646 | ret = scm_call2(smc_id, &desc); |
| 647 | break; |
| 648 | } |
| 649 | case QSEOS_LOAD_EXTERNAL_ELF_COMMAND: { |
| 650 | struct qseecom_load_app_ireq *req; |
| 651 | struct qseecom_load_app_64bit_ireq *req_64bit; |
| 652 | |
| 653 | smc_id = TZ_OS_LOAD_EXTERNAL_IMAGE_ID; |
| 654 | desc.arginfo = TZ_OS_LOAD_SERVICES_IMAGE_ID_PARAM_ID; |
| 655 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 656 | req = (struct qseecom_load_app_ireq *)req_buf; |
| 657 | desc.args[0] = req->mdt_len; |
| 658 | desc.args[1] = req->img_len; |
| 659 | desc.args[2] = req->phy_addr; |
| 660 | } else { |
| 661 | req_64bit = |
| 662 | (struct qseecom_load_app_64bit_ireq *)req_buf; |
| 663 | desc.args[0] = req_64bit->mdt_len; |
| 664 | desc.args[1] = req_64bit->img_len; |
| 665 | desc.args[2] = req_64bit->phy_addr; |
| 666 | } |
| 667 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 668 | ret = scm_call2(smc_id, &desc); |
| 669 | break; |
| 670 | } |
| 671 | case QSEOS_UNLOAD_EXTERNAL_ELF_COMMAND: { |
| 672 | smc_id = TZ_OS_UNLOAD_EXTERNAL_IMAGE_ID; |
| 673 | desc.arginfo = TZ_OS_UNLOAD_SERVICES_IMAGE_ID_PARAM_ID; |
| 674 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 675 | ret = scm_call2(smc_id, &desc); |
| 676 | break; |
| 677 | } |
| 678 | |
| 679 | case QSEOS_CLIENT_SEND_DATA_COMMAND: { |
| 680 | struct qseecom_client_send_data_ireq *req; |
| 681 | struct qseecom_client_send_data_64bit_ireq *req_64bit; |
| 682 | |
| 683 | smc_id = TZ_APP_QSAPP_SEND_DATA_ID; |
| 684 | desc.arginfo = TZ_APP_QSAPP_SEND_DATA_ID_PARAM_ID; |
| 685 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 686 | req = (struct qseecom_client_send_data_ireq *) |
| 687 | req_buf; |
| 688 | desc.args[0] = req->app_id; |
| 689 | desc.args[1] = req->req_ptr; |
| 690 | desc.args[2] = req->req_len; |
| 691 | desc.args[3] = req->rsp_ptr; |
| 692 | desc.args[4] = req->rsp_len; |
| 693 | } else { |
| 694 | req_64bit = |
| 695 | (struct qseecom_client_send_data_64bit_ireq *) |
| 696 | req_buf; |
| 697 | desc.args[0] = req_64bit->app_id; |
| 698 | desc.args[1] = req_64bit->req_ptr; |
| 699 | desc.args[2] = req_64bit->req_len; |
| 700 | desc.args[3] = req_64bit->rsp_ptr; |
| 701 | desc.args[4] = req_64bit->rsp_len; |
| 702 | } |
| 703 | ret = scm_call2(smc_id, &desc); |
| 704 | break; |
| 705 | } |
| 706 | case QSEOS_CLIENT_SEND_DATA_COMMAND_WHITELIST: { |
| 707 | struct qseecom_client_send_data_ireq *req; |
| 708 | struct qseecom_client_send_data_64bit_ireq *req_64bit; |
| 709 | |
| 710 | smc_id = TZ_APP_QSAPP_SEND_DATA_WITH_WHITELIST_ID; |
| 711 | desc.arginfo = |
| 712 | TZ_APP_QSAPP_SEND_DATA_WITH_WHITELIST_ID_PARAM_ID; |
| 713 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 714 | req = (struct qseecom_client_send_data_ireq *) |
| 715 | req_buf; |
| 716 | desc.args[0] = req->app_id; |
| 717 | desc.args[1] = req->req_ptr; |
| 718 | desc.args[2] = req->req_len; |
| 719 | desc.args[3] = req->rsp_ptr; |
| 720 | desc.args[4] = req->rsp_len; |
| 721 | desc.args[5] = req->sglistinfo_ptr; |
| 722 | desc.args[6] = req->sglistinfo_len; |
| 723 | } else { |
| 724 | req_64bit = |
| 725 | (struct qseecom_client_send_data_64bit_ireq *) |
| 726 | req_buf; |
| 727 | desc.args[0] = req_64bit->app_id; |
| 728 | desc.args[1] = req_64bit->req_ptr; |
| 729 | desc.args[2] = req_64bit->req_len; |
| 730 | desc.args[3] = req_64bit->rsp_ptr; |
| 731 | desc.args[4] = req_64bit->rsp_len; |
| 732 | desc.args[5] = req_64bit->sglistinfo_ptr; |
| 733 | desc.args[6] = req_64bit->sglistinfo_len; |
| 734 | } |
| 735 | ret = scm_call2(smc_id, &desc); |
| 736 | break; |
| 737 | } |
| 738 | case QSEOS_RPMB_PROVISION_KEY_COMMAND: { |
| 739 | struct qseecom_client_send_service_ireq *req; |
| 740 | |
| 741 | req = (struct qseecom_client_send_service_ireq *) |
| 742 | req_buf; |
| 743 | smc_id = TZ_OS_RPMB_PROVISION_KEY_ID; |
| 744 | desc.arginfo = TZ_OS_RPMB_PROVISION_KEY_ID_PARAM_ID; |
| 745 | desc.args[0] = req->key_type; |
| 746 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 747 | ret = scm_call2(smc_id, &desc); |
| 748 | break; |
| 749 | } |
| 750 | case QSEOS_RPMB_ERASE_COMMAND: { |
| 751 | smc_id = TZ_OS_RPMB_ERASE_ID; |
| 752 | desc.arginfo = TZ_OS_RPMB_ERASE_ID_PARAM_ID; |
| 753 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 754 | ret = scm_call2(smc_id, &desc); |
| 755 | break; |
| 756 | } |
| 757 | case QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND: { |
| 758 | smc_id = TZ_OS_RPMB_CHECK_PROV_STATUS_ID; |
| 759 | desc.arginfo = TZ_OS_RPMB_CHECK_PROV_STATUS_ID_PARAM_ID; |
| 760 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 761 | ret = scm_call2(smc_id, &desc); |
| 762 | break; |
| 763 | } |
| 764 | case QSEOS_GENERATE_KEY: { |
| 765 | u32 tzbuflen = PAGE_ALIGN(sizeof |
| 766 | (struct qseecom_key_generate_ireq) - |
| 767 | sizeof(uint32_t)); |
| 768 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 769 | |
| 770 | if (!tzbuf) |
| 771 | return -ENOMEM; |
| 772 | memset(tzbuf, 0, tzbuflen); |
| 773 | memcpy(tzbuf, req_buf + sizeof(uint32_t), |
| 774 | (sizeof(struct qseecom_key_generate_ireq) - |
| 775 | sizeof(uint32_t))); |
| 776 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 777 | smc_id = TZ_OS_KS_GEN_KEY_ID; |
| 778 | desc.arginfo = TZ_OS_KS_GEN_KEY_ID_PARAM_ID; |
| 779 | desc.args[0] = virt_to_phys(tzbuf); |
| 780 | desc.args[1] = tzbuflen; |
| 781 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 782 | ret = scm_call2(smc_id, &desc); |
| 783 | kzfree(tzbuf); |
| 784 | break; |
| 785 | } |
| 786 | case QSEOS_DELETE_KEY: { |
| 787 | u32 tzbuflen = PAGE_ALIGN(sizeof |
| 788 | (struct qseecom_key_delete_ireq) - |
| 789 | sizeof(uint32_t)); |
| 790 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 791 | |
| 792 | if (!tzbuf) |
| 793 | return -ENOMEM; |
| 794 | memset(tzbuf, 0, tzbuflen); |
| 795 | memcpy(tzbuf, req_buf + sizeof(uint32_t), |
| 796 | (sizeof(struct qseecom_key_delete_ireq) - |
| 797 | sizeof(uint32_t))); |
| 798 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 799 | smc_id = TZ_OS_KS_DEL_KEY_ID; |
| 800 | desc.arginfo = TZ_OS_KS_DEL_KEY_ID_PARAM_ID; |
| 801 | desc.args[0] = virt_to_phys(tzbuf); |
| 802 | desc.args[1] = tzbuflen; |
| 803 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 804 | ret = scm_call2(smc_id, &desc); |
| 805 | kzfree(tzbuf); |
| 806 | break; |
| 807 | } |
| 808 | case QSEOS_SET_KEY: { |
| 809 | u32 tzbuflen = PAGE_ALIGN(sizeof |
| 810 | (struct qseecom_key_select_ireq) - |
| 811 | sizeof(uint32_t)); |
| 812 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 813 | |
| 814 | if (!tzbuf) |
| 815 | return -ENOMEM; |
| 816 | memset(tzbuf, 0, tzbuflen); |
| 817 | memcpy(tzbuf, req_buf + sizeof(uint32_t), |
| 818 | (sizeof(struct qseecom_key_select_ireq) - |
| 819 | sizeof(uint32_t))); |
| 820 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 821 | smc_id = TZ_OS_KS_SET_PIPE_KEY_ID; |
| 822 | desc.arginfo = TZ_OS_KS_SET_PIPE_KEY_ID_PARAM_ID; |
| 823 | desc.args[0] = virt_to_phys(tzbuf); |
| 824 | desc.args[1] = tzbuflen; |
| 825 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 826 | ret = scm_call2(smc_id, &desc); |
| 827 | kzfree(tzbuf); |
| 828 | break; |
| 829 | } |
| 830 | case QSEOS_UPDATE_KEY_USERINFO: { |
| 831 | u32 tzbuflen = PAGE_ALIGN(sizeof |
| 832 | (struct qseecom_key_userinfo_update_ireq) - |
| 833 | sizeof(uint32_t)); |
| 834 | char *tzbuf = kzalloc(tzbuflen, GFP_KERNEL); |
| 835 | |
| 836 | if (!tzbuf) |
| 837 | return -ENOMEM; |
| 838 | memset(tzbuf, 0, tzbuflen); |
| 839 | memcpy(tzbuf, req_buf + sizeof(uint32_t), (sizeof |
| 840 | (struct qseecom_key_userinfo_update_ireq) - |
| 841 | sizeof(uint32_t))); |
| 842 | dmac_flush_range(tzbuf, tzbuf + tzbuflen); |
| 843 | smc_id = TZ_OS_KS_UPDATE_KEY_ID; |
| 844 | desc.arginfo = TZ_OS_KS_UPDATE_KEY_ID_PARAM_ID; |
| 845 | desc.args[0] = virt_to_phys(tzbuf); |
| 846 | desc.args[1] = tzbuflen; |
| 847 | __qseecom_reentrancy_check_if_no_app_blocked(smc_id); |
| 848 | ret = scm_call2(smc_id, &desc); |
| 849 | kzfree(tzbuf); |
| 850 | break; |
| 851 | } |
| 852 | case QSEOS_TEE_OPEN_SESSION: { |
| 853 | struct qseecom_qteec_ireq *req; |
| 854 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 855 | |
| 856 | smc_id = TZ_APP_GPAPP_OPEN_SESSION_ID; |
| 857 | desc.arginfo = TZ_APP_GPAPP_OPEN_SESSION_ID_PARAM_ID; |
| 858 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 859 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 860 | desc.args[0] = req->app_id; |
| 861 | desc.args[1] = req->req_ptr; |
| 862 | desc.args[2] = req->req_len; |
| 863 | desc.args[3] = req->resp_ptr; |
| 864 | desc.args[4] = req->resp_len; |
| 865 | } else { |
| 866 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 867 | req_buf; |
| 868 | desc.args[0] = req_64bit->app_id; |
| 869 | desc.args[1] = req_64bit->req_ptr; |
| 870 | desc.args[2] = req_64bit->req_len; |
| 871 | desc.args[3] = req_64bit->resp_ptr; |
| 872 | desc.args[4] = req_64bit->resp_len; |
| 873 | } |
| 874 | ret = scm_call2(smc_id, &desc); |
| 875 | break; |
| 876 | } |
| 877 | case QSEOS_TEE_OPEN_SESSION_WHITELIST: { |
| 878 | struct qseecom_qteec_ireq *req; |
| 879 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 880 | |
| 881 | smc_id = TZ_APP_GPAPP_OPEN_SESSION_WITH_WHITELIST_ID; |
| 882 | desc.arginfo = |
| 883 | TZ_APP_GPAPP_OPEN_SESSION_WITH_WHITELIST_ID_PARAM_ID; |
| 884 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 885 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 886 | desc.args[0] = req->app_id; |
| 887 | desc.args[1] = req->req_ptr; |
| 888 | desc.args[2] = req->req_len; |
| 889 | desc.args[3] = req->resp_ptr; |
| 890 | desc.args[4] = req->resp_len; |
| 891 | desc.args[5] = req->sglistinfo_ptr; |
| 892 | desc.args[6] = req->sglistinfo_len; |
| 893 | } else { |
| 894 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 895 | req_buf; |
| 896 | desc.args[0] = req_64bit->app_id; |
| 897 | desc.args[1] = req_64bit->req_ptr; |
| 898 | desc.args[2] = req_64bit->req_len; |
| 899 | desc.args[3] = req_64bit->resp_ptr; |
| 900 | desc.args[4] = req_64bit->resp_len; |
| 901 | desc.args[5] = req_64bit->sglistinfo_ptr; |
| 902 | desc.args[6] = req_64bit->sglistinfo_len; |
| 903 | } |
| 904 | ret = scm_call2(smc_id, &desc); |
| 905 | break; |
| 906 | } |
| 907 | case QSEOS_TEE_INVOKE_COMMAND: { |
| 908 | struct qseecom_qteec_ireq *req; |
| 909 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 910 | |
| 911 | smc_id = TZ_APP_GPAPP_INVOKE_COMMAND_ID; |
| 912 | desc.arginfo = TZ_APP_GPAPP_INVOKE_COMMAND_ID_PARAM_ID; |
| 913 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 914 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 915 | desc.args[0] = req->app_id; |
| 916 | desc.args[1] = req->req_ptr; |
| 917 | desc.args[2] = req->req_len; |
| 918 | desc.args[3] = req->resp_ptr; |
| 919 | desc.args[4] = req->resp_len; |
| 920 | } else { |
| 921 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 922 | req_buf; |
| 923 | desc.args[0] = req_64bit->app_id; |
| 924 | desc.args[1] = req_64bit->req_ptr; |
| 925 | desc.args[2] = req_64bit->req_len; |
| 926 | desc.args[3] = req_64bit->resp_ptr; |
| 927 | desc.args[4] = req_64bit->resp_len; |
| 928 | } |
| 929 | ret = scm_call2(smc_id, &desc); |
| 930 | break; |
| 931 | } |
| 932 | case QSEOS_TEE_INVOKE_COMMAND_WHITELIST: { |
| 933 | struct qseecom_qteec_ireq *req; |
| 934 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 935 | |
| 936 | smc_id = TZ_APP_GPAPP_INVOKE_COMMAND_WITH_WHITELIST_ID; |
| 937 | desc.arginfo = |
| 938 | TZ_APP_GPAPP_INVOKE_COMMAND_WITH_WHITELIST_ID_PARAM_ID; |
| 939 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 940 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 941 | desc.args[0] = req->app_id; |
| 942 | desc.args[1] = req->req_ptr; |
| 943 | desc.args[2] = req->req_len; |
| 944 | desc.args[3] = req->resp_ptr; |
| 945 | desc.args[4] = req->resp_len; |
| 946 | desc.args[5] = req->sglistinfo_ptr; |
| 947 | desc.args[6] = req->sglistinfo_len; |
| 948 | } else { |
| 949 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 950 | req_buf; |
| 951 | desc.args[0] = req_64bit->app_id; |
| 952 | desc.args[1] = req_64bit->req_ptr; |
| 953 | desc.args[2] = req_64bit->req_len; |
| 954 | desc.args[3] = req_64bit->resp_ptr; |
| 955 | desc.args[4] = req_64bit->resp_len; |
| 956 | desc.args[5] = req_64bit->sglistinfo_ptr; |
| 957 | desc.args[6] = req_64bit->sglistinfo_len; |
| 958 | } |
| 959 | ret = scm_call2(smc_id, &desc); |
| 960 | break; |
| 961 | } |
| 962 | case QSEOS_TEE_CLOSE_SESSION: { |
| 963 | struct qseecom_qteec_ireq *req; |
| 964 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 965 | |
| 966 | smc_id = TZ_APP_GPAPP_CLOSE_SESSION_ID; |
| 967 | desc.arginfo = TZ_APP_GPAPP_CLOSE_SESSION_ID_PARAM_ID; |
| 968 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 969 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 970 | desc.args[0] = req->app_id; |
| 971 | desc.args[1] = req->req_ptr; |
| 972 | desc.args[2] = req->req_len; |
| 973 | desc.args[3] = req->resp_ptr; |
| 974 | desc.args[4] = req->resp_len; |
| 975 | } else { |
| 976 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 977 | req_buf; |
| 978 | desc.args[0] = req_64bit->app_id; |
| 979 | desc.args[1] = req_64bit->req_ptr; |
| 980 | desc.args[2] = req_64bit->req_len; |
| 981 | desc.args[3] = req_64bit->resp_ptr; |
| 982 | desc.args[4] = req_64bit->resp_len; |
| 983 | } |
| 984 | ret = scm_call2(smc_id, &desc); |
| 985 | break; |
| 986 | } |
| 987 | case QSEOS_TEE_REQUEST_CANCELLATION: { |
| 988 | struct qseecom_qteec_ireq *req; |
| 989 | struct qseecom_qteec_64bit_ireq *req_64bit; |
| 990 | |
| 991 | smc_id = TZ_APP_GPAPP_REQUEST_CANCELLATION_ID; |
| 992 | desc.arginfo = |
| 993 | TZ_APP_GPAPP_REQUEST_CANCELLATION_ID_PARAM_ID; |
| 994 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 995 | req = (struct qseecom_qteec_ireq *)req_buf; |
| 996 | desc.args[0] = req->app_id; |
| 997 | desc.args[1] = req->req_ptr; |
| 998 | desc.args[2] = req->req_len; |
| 999 | desc.args[3] = req->resp_ptr; |
| 1000 | desc.args[4] = req->resp_len; |
| 1001 | } else { |
| 1002 | req_64bit = (struct qseecom_qteec_64bit_ireq *) |
| 1003 | req_buf; |
| 1004 | desc.args[0] = req_64bit->app_id; |
| 1005 | desc.args[1] = req_64bit->req_ptr; |
| 1006 | desc.args[2] = req_64bit->req_len; |
| 1007 | desc.args[3] = req_64bit->resp_ptr; |
| 1008 | desc.args[4] = req_64bit->resp_len; |
| 1009 | } |
| 1010 | ret = scm_call2(smc_id, &desc); |
| 1011 | break; |
| 1012 | } |
| 1013 | case QSEOS_CONTINUE_BLOCKED_REQ_COMMAND: { |
| 1014 | struct qseecom_continue_blocked_request_ireq *req = |
| 1015 | (struct qseecom_continue_blocked_request_ireq *) |
| 1016 | req_buf; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1017 | if (qseecom.smcinvoke_support) |
| 1018 | smc_id = |
| 1019 | TZ_OS_CONTINUE_BLOCKED_REQUEST_SMCINVOKE_ID; |
| 1020 | else |
| 1021 | smc_id = TZ_OS_CONTINUE_BLOCKED_REQUEST_ID; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1022 | desc.arginfo = |
| 1023 | TZ_OS_CONTINUE_BLOCKED_REQUEST_ID_PARAM_ID; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1024 | desc.args[0] = req->app_or_session_id; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1025 | ret = scm_call2(smc_id, &desc); |
| 1026 | break; |
| 1027 | } |
| 1028 | default: { |
| 1029 | pr_err("qseos_cmd_id %d is not supported by armv8 scm_call2.\n", |
| 1030 | qseos_cmd_id); |
| 1031 | ret = -EINVAL; |
| 1032 | break; |
| 1033 | } |
| 1034 | } /*end of switch (qsee_cmd_id) */ |
| 1035 | break; |
| 1036 | } /*end of case SCM_SVC_TZSCHEDULER*/ |
| 1037 | default: { |
| 1038 | pr_err("svc_id 0x%x is not supported by armv8 scm_call2.\n", |
| 1039 | svc_id); |
| 1040 | ret = -EINVAL; |
| 1041 | break; |
| 1042 | } |
| 1043 | } /*end of switch svc_id */ |
| 1044 | scm_resp->result = desc.ret[0]; |
| 1045 | scm_resp->resp_type = desc.ret[1]; |
| 1046 | scm_resp->data = desc.ret[2]; |
| 1047 | 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", |
| 1048 | svc_id, tz_cmd_id, qseos_cmd_id, smc_id, desc.arginfo); |
| 1049 | pr_debug("scm_resp->result = 0x%x, scm_resp->resp_type = 0x%x, scm_resp->data = 0x%x\n", |
| 1050 | scm_resp->result, scm_resp->resp_type, scm_resp->data); |
| 1051 | return ret; |
| 1052 | } |
| 1053 | |
| 1054 | |
| 1055 | static int qseecom_scm_call(u32 svc_id, u32 tz_cmd_id, const void *cmd_buf, |
| 1056 | size_t cmd_len, void *resp_buf, size_t resp_len) |
| 1057 | { |
| 1058 | if (!is_scm_armv8()) |
| 1059 | return scm_call(svc_id, tz_cmd_id, cmd_buf, cmd_len, |
| 1060 | resp_buf, resp_len); |
| 1061 | else |
| 1062 | return qseecom_scm_call2(svc_id, tz_cmd_id, cmd_buf, resp_buf); |
| 1063 | } |
| 1064 | |
| 1065 | static int __qseecom_is_svc_unique(struct qseecom_dev_handle *data, |
| 1066 | struct qseecom_register_listener_req *svc) |
| 1067 | { |
| 1068 | struct qseecom_registered_listener_list *ptr; |
| 1069 | int unique = 1; |
| 1070 | unsigned long flags; |
| 1071 | |
| 1072 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 1073 | list_for_each_entry(ptr, &qseecom.registered_listener_list_head, list) { |
| 1074 | if (ptr->svc.listener_id == svc->listener_id) { |
| 1075 | pr_err("Service id: %u is already registered\n", |
| 1076 | ptr->svc.listener_id); |
| 1077 | unique = 0; |
| 1078 | break; |
| 1079 | } |
| 1080 | } |
| 1081 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 1082 | return unique; |
| 1083 | } |
| 1084 | |
| 1085 | static struct qseecom_registered_listener_list *__qseecom_find_svc( |
| 1086 | int32_t listener_id) |
| 1087 | { |
| 1088 | struct qseecom_registered_listener_list *entry = NULL; |
| 1089 | unsigned long flags; |
| 1090 | |
| 1091 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 1092 | list_for_each_entry(entry, |
| 1093 | &qseecom.registered_listener_list_head, list) { |
| 1094 | if (entry->svc.listener_id == listener_id) |
| 1095 | break; |
| 1096 | } |
| 1097 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 1098 | |
| 1099 | if ((entry != NULL) && (entry->svc.listener_id != listener_id)) { |
| 1100 | pr_err("Service id: %u is not found\n", listener_id); |
| 1101 | return NULL; |
| 1102 | } |
| 1103 | |
| 1104 | return entry; |
| 1105 | } |
| 1106 | |
| 1107 | static int __qseecom_set_sb_memory(struct qseecom_registered_listener_list *svc, |
| 1108 | struct qseecom_dev_handle *handle, |
| 1109 | struct qseecom_register_listener_req *listener) |
| 1110 | { |
| 1111 | int ret = 0; |
| 1112 | struct qseecom_register_listener_ireq req; |
| 1113 | struct qseecom_register_listener_64bit_ireq req_64bit; |
| 1114 | struct qseecom_command_scm_resp resp; |
| 1115 | ion_phys_addr_t pa; |
| 1116 | void *cmd_buf = NULL; |
| 1117 | size_t cmd_len; |
| 1118 | |
| 1119 | /* Get the handle of the shared fd */ |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 1120 | svc->ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1121 | listener->ifd_data_fd); |
| 1122 | if (IS_ERR_OR_NULL(svc->ihandle)) { |
| 1123 | pr_err("Ion client could not retrieve the handle\n"); |
| 1124 | return -ENOMEM; |
| 1125 | } |
| 1126 | |
| 1127 | /* Get the physical address of the ION BUF */ |
| 1128 | ret = ion_phys(qseecom.ion_clnt, svc->ihandle, &pa, &svc->sb_length); |
| 1129 | if (ret) { |
| 1130 | pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n", |
| 1131 | ret); |
| 1132 | return ret; |
| 1133 | } |
| 1134 | /* Populate the structure for sending scm call to load image */ |
| 1135 | svc->sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, svc->ihandle); |
| 1136 | if (IS_ERR_OR_NULL(svc->sb_virt)) { |
| 1137 | pr_err("ION memory mapping for listener shared buffer failed\n"); |
| 1138 | return -ENOMEM; |
| 1139 | } |
| 1140 | svc->sb_phys = (phys_addr_t)pa; |
| 1141 | |
| 1142 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 1143 | req.qsee_cmd_id = QSEOS_REGISTER_LISTENER; |
| 1144 | req.listener_id = svc->svc.listener_id; |
| 1145 | req.sb_len = svc->sb_length; |
| 1146 | req.sb_ptr = (uint32_t)svc->sb_phys; |
| 1147 | cmd_buf = (void *)&req; |
| 1148 | cmd_len = sizeof(struct qseecom_register_listener_ireq); |
| 1149 | } else { |
| 1150 | req_64bit.qsee_cmd_id = QSEOS_REGISTER_LISTENER; |
| 1151 | req_64bit.listener_id = svc->svc.listener_id; |
| 1152 | req_64bit.sb_len = svc->sb_length; |
| 1153 | req_64bit.sb_ptr = (uint64_t)svc->sb_phys; |
| 1154 | cmd_buf = (void *)&req_64bit; |
| 1155 | cmd_len = sizeof(struct qseecom_register_listener_64bit_ireq); |
| 1156 | } |
| 1157 | |
| 1158 | resp.result = QSEOS_RESULT_INCOMPLETE; |
| 1159 | |
| 1160 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len, |
| 1161 | &resp, sizeof(resp)); |
| 1162 | if (ret) { |
| 1163 | pr_err("qseecom_scm_call failed with err: %d\n", ret); |
| 1164 | return -EINVAL; |
| 1165 | } |
| 1166 | |
| 1167 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 1168 | pr_err("Error SB registration req: resp.result = %d\n", |
| 1169 | resp.result); |
| 1170 | return -EPERM; |
| 1171 | } |
| 1172 | return 0; |
| 1173 | } |
| 1174 | |
| 1175 | static int qseecom_register_listener(struct qseecom_dev_handle *data, |
| 1176 | void __user *argp) |
| 1177 | { |
| 1178 | int ret = 0; |
| 1179 | unsigned long flags; |
| 1180 | struct qseecom_register_listener_req rcvd_lstnr; |
| 1181 | struct qseecom_registered_listener_list *new_entry; |
| 1182 | |
| 1183 | ret = copy_from_user(&rcvd_lstnr, argp, sizeof(rcvd_lstnr)); |
| 1184 | if (ret) { |
| 1185 | pr_err("copy_from_user failed\n"); |
| 1186 | return ret; |
| 1187 | } |
| 1188 | if (!access_ok(VERIFY_WRITE, (void __user *)rcvd_lstnr.virt_sb_base, |
| 1189 | rcvd_lstnr.sb_size)) |
| 1190 | return -EFAULT; |
| 1191 | |
| 1192 | data->listener.id = 0; |
| 1193 | if (!__qseecom_is_svc_unique(data, &rcvd_lstnr)) { |
| 1194 | pr_err("Service is not unique and is already registered\n"); |
| 1195 | data->released = true; |
| 1196 | return -EBUSY; |
| 1197 | } |
| 1198 | |
| 1199 | new_entry = kzalloc(sizeof(*new_entry), GFP_KERNEL); |
| 1200 | if (!new_entry) |
| 1201 | return -ENOMEM; |
| 1202 | memcpy(&new_entry->svc, &rcvd_lstnr, sizeof(rcvd_lstnr)); |
| 1203 | new_entry->rcv_req_flag = 0; |
| 1204 | |
| 1205 | new_entry->svc.listener_id = rcvd_lstnr.listener_id; |
| 1206 | new_entry->sb_length = rcvd_lstnr.sb_size; |
| 1207 | new_entry->user_virt_sb_base = rcvd_lstnr.virt_sb_base; |
| 1208 | if (__qseecom_set_sb_memory(new_entry, data, &rcvd_lstnr)) { |
| 1209 | pr_err("qseecom_set_sb_memoryfailed\n"); |
| 1210 | kzfree(new_entry); |
| 1211 | return -ENOMEM; |
| 1212 | } |
| 1213 | |
| 1214 | data->listener.id = rcvd_lstnr.listener_id; |
| 1215 | init_waitqueue_head(&new_entry->rcv_req_wq); |
| 1216 | init_waitqueue_head(&new_entry->listener_block_app_wq); |
| 1217 | new_entry->send_resp_flag = 0; |
| 1218 | new_entry->listener_in_use = false; |
| 1219 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 1220 | list_add_tail(&new_entry->list, &qseecom.registered_listener_list_head); |
| 1221 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 1222 | |
| 1223 | return ret; |
| 1224 | } |
| 1225 | |
| 1226 | static int qseecom_unregister_listener(struct qseecom_dev_handle *data) |
| 1227 | { |
| 1228 | int ret = 0; |
| 1229 | unsigned long flags; |
| 1230 | uint32_t unmap_mem = 0; |
| 1231 | struct qseecom_register_listener_ireq req; |
| 1232 | struct qseecom_registered_listener_list *ptr_svc = NULL; |
| 1233 | struct qseecom_command_scm_resp resp; |
| 1234 | struct ion_handle *ihandle = NULL; /* Retrieve phy addr */ |
| 1235 | |
| 1236 | req.qsee_cmd_id = QSEOS_DEREGISTER_LISTENER; |
| 1237 | req.listener_id = data->listener.id; |
| 1238 | resp.result = QSEOS_RESULT_INCOMPLETE; |
| 1239 | |
| 1240 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 1241 | sizeof(req), &resp, sizeof(resp)); |
| 1242 | if (ret) { |
| 1243 | pr_err("scm_call() failed with err: %d (lstnr id=%d)\n", |
| 1244 | ret, data->listener.id); |
| 1245 | return ret; |
| 1246 | } |
| 1247 | |
| 1248 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 1249 | pr_err("Failed resp.result=%d,(lstnr id=%d)\n", |
| 1250 | resp.result, data->listener.id); |
| 1251 | return -EPERM; |
| 1252 | } |
| 1253 | |
| 1254 | data->abort = 1; |
| 1255 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 1256 | list_for_each_entry(ptr_svc, &qseecom.registered_listener_list_head, |
| 1257 | list) { |
| 1258 | if (ptr_svc->svc.listener_id == data->listener.id) { |
| 1259 | wake_up_all(&ptr_svc->rcv_req_wq); |
| 1260 | break; |
| 1261 | } |
| 1262 | } |
| 1263 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 1264 | |
| 1265 | while (atomic_read(&data->ioctl_count) > 1) { |
| 1266 | if (wait_event_freezable(data->abort_wq, |
| 1267 | atomic_read(&data->ioctl_count) <= 1)) { |
| 1268 | pr_err("Interrupted from abort\n"); |
| 1269 | ret = -ERESTARTSYS; |
Zhen Kong | d0954d7 | 2017-06-01 15:06:00 -0700 | [diff] [blame] | 1270 | return ret; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, flags); |
| 1275 | list_for_each_entry(ptr_svc, |
| 1276 | &qseecom.registered_listener_list_head, list) { |
| 1277 | if (ptr_svc->svc.listener_id == data->listener.id) { |
| 1278 | if (ptr_svc->sb_virt) { |
| 1279 | unmap_mem = 1; |
| 1280 | ihandle = ptr_svc->ihandle; |
| 1281 | } |
| 1282 | list_del(&ptr_svc->list); |
| 1283 | kzfree(ptr_svc); |
| 1284 | break; |
| 1285 | } |
| 1286 | } |
| 1287 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, flags); |
| 1288 | |
| 1289 | /* Unmap the memory */ |
| 1290 | if (unmap_mem) { |
| 1291 | if (!IS_ERR_OR_NULL(ihandle)) { |
| 1292 | ion_unmap_kernel(qseecom.ion_clnt, ihandle); |
| 1293 | ion_free(qseecom.ion_clnt, ihandle); |
| 1294 | } |
| 1295 | } |
| 1296 | data->released = true; |
| 1297 | return ret; |
| 1298 | } |
| 1299 | |
| 1300 | static int __qseecom_set_msm_bus_request(uint32_t mode) |
| 1301 | { |
| 1302 | int ret = 0; |
| 1303 | struct qseecom_clk *qclk; |
| 1304 | |
| 1305 | qclk = &qseecom.qsee; |
| 1306 | if (qclk->ce_core_src_clk != NULL) { |
| 1307 | if (mode == INACTIVE) { |
| 1308 | __qseecom_disable_clk(CLK_QSEE); |
| 1309 | } else { |
| 1310 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 1311 | if (ret) |
| 1312 | pr_err("CLK enabling failed (%d) MODE (%d)\n", |
| 1313 | ret, mode); |
| 1314 | } |
| 1315 | } |
| 1316 | |
| 1317 | if ((!ret) && (qseecom.current_mode != mode)) { |
| 1318 | ret = msm_bus_scale_client_update_request( |
| 1319 | qseecom.qsee_perf_client, mode); |
| 1320 | if (ret) { |
| 1321 | pr_err("Bandwidth req failed(%d) MODE (%d)\n", |
| 1322 | ret, mode); |
| 1323 | if (qclk->ce_core_src_clk != NULL) { |
| 1324 | if (mode == INACTIVE) { |
| 1325 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 1326 | if (ret) |
| 1327 | pr_err("CLK enable failed\n"); |
| 1328 | } else |
| 1329 | __qseecom_disable_clk(CLK_QSEE); |
| 1330 | } |
| 1331 | } |
| 1332 | qseecom.current_mode = mode; |
| 1333 | } |
| 1334 | return ret; |
| 1335 | } |
| 1336 | |
| 1337 | static void qseecom_bw_inactive_req_work(struct work_struct *work) |
| 1338 | { |
| 1339 | mutex_lock(&app_access_lock); |
| 1340 | mutex_lock(&qsee_bw_mutex); |
| 1341 | if (qseecom.timer_running) |
| 1342 | __qseecom_set_msm_bus_request(INACTIVE); |
| 1343 | pr_debug("current_mode = %d, cumulative_mode = %d\n", |
| 1344 | qseecom.current_mode, qseecom.cumulative_mode); |
| 1345 | qseecom.timer_running = false; |
| 1346 | mutex_unlock(&qsee_bw_mutex); |
| 1347 | mutex_unlock(&app_access_lock); |
| 1348 | } |
| 1349 | |
| 1350 | static void qseecom_scale_bus_bandwidth_timer_callback(unsigned long data) |
| 1351 | { |
| 1352 | schedule_work(&qseecom.bw_inactive_req_ws); |
| 1353 | } |
| 1354 | |
| 1355 | static int __qseecom_decrease_clk_ref_count(enum qseecom_ce_hw_instance ce) |
| 1356 | { |
| 1357 | struct qseecom_clk *qclk; |
| 1358 | int ret = 0; |
| 1359 | |
| 1360 | mutex_lock(&clk_access_lock); |
| 1361 | if (ce == CLK_QSEE) |
| 1362 | qclk = &qseecom.qsee; |
| 1363 | else |
| 1364 | qclk = &qseecom.ce_drv; |
| 1365 | |
| 1366 | if (qclk->clk_access_cnt > 2) { |
| 1367 | pr_err("Invalid clock ref count %d\n", qclk->clk_access_cnt); |
| 1368 | ret = -EINVAL; |
| 1369 | goto err_dec_ref_cnt; |
| 1370 | } |
| 1371 | if (qclk->clk_access_cnt == 2) |
| 1372 | qclk->clk_access_cnt--; |
| 1373 | |
| 1374 | err_dec_ref_cnt: |
| 1375 | mutex_unlock(&clk_access_lock); |
| 1376 | return ret; |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | static int qseecom_scale_bus_bandwidth_timer(uint32_t mode) |
| 1381 | { |
| 1382 | int32_t ret = 0; |
| 1383 | int32_t request_mode = INACTIVE; |
| 1384 | |
| 1385 | mutex_lock(&qsee_bw_mutex); |
| 1386 | if (mode == 0) { |
| 1387 | if (qseecom.cumulative_mode > MEDIUM) |
| 1388 | request_mode = HIGH; |
| 1389 | else |
| 1390 | request_mode = qseecom.cumulative_mode; |
| 1391 | } else { |
| 1392 | request_mode = mode; |
| 1393 | } |
| 1394 | |
| 1395 | ret = __qseecom_set_msm_bus_request(request_mode); |
| 1396 | if (ret) { |
| 1397 | pr_err("set msm bus request failed (%d),request_mode (%d)\n", |
| 1398 | ret, request_mode); |
| 1399 | goto err_scale_timer; |
| 1400 | } |
| 1401 | |
| 1402 | if (qseecom.timer_running) { |
| 1403 | ret = __qseecom_decrease_clk_ref_count(CLK_QSEE); |
| 1404 | if (ret) { |
| 1405 | pr_err("Failed to decrease clk ref count.\n"); |
| 1406 | goto err_scale_timer; |
| 1407 | } |
| 1408 | del_timer_sync(&(qseecom.bw_scale_down_timer)); |
| 1409 | qseecom.timer_running = false; |
| 1410 | } |
| 1411 | err_scale_timer: |
| 1412 | mutex_unlock(&qsee_bw_mutex); |
| 1413 | return ret; |
| 1414 | } |
| 1415 | |
| 1416 | |
| 1417 | static int qseecom_unregister_bus_bandwidth_needs( |
| 1418 | struct qseecom_dev_handle *data) |
| 1419 | { |
| 1420 | int32_t ret = 0; |
| 1421 | |
| 1422 | qseecom.cumulative_mode -= data->mode; |
| 1423 | data->mode = INACTIVE; |
| 1424 | |
| 1425 | return ret; |
| 1426 | } |
| 1427 | |
| 1428 | static int __qseecom_register_bus_bandwidth_needs( |
| 1429 | struct qseecom_dev_handle *data, uint32_t request_mode) |
| 1430 | { |
| 1431 | int32_t ret = 0; |
| 1432 | |
| 1433 | if (data->mode == INACTIVE) { |
| 1434 | qseecom.cumulative_mode += request_mode; |
| 1435 | data->mode = request_mode; |
| 1436 | } else { |
| 1437 | if (data->mode != request_mode) { |
| 1438 | qseecom.cumulative_mode -= data->mode; |
| 1439 | qseecom.cumulative_mode += request_mode; |
| 1440 | data->mode = request_mode; |
| 1441 | } |
| 1442 | } |
| 1443 | return ret; |
| 1444 | } |
| 1445 | |
| 1446 | static int qseecom_perf_enable(struct qseecom_dev_handle *data) |
| 1447 | { |
| 1448 | int ret = 0; |
| 1449 | |
| 1450 | ret = qsee_vote_for_clock(data, CLK_DFAB); |
| 1451 | if (ret) { |
| 1452 | pr_err("Failed to vote for DFAB clock with err %d\n", ret); |
| 1453 | goto perf_enable_exit; |
| 1454 | } |
| 1455 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 1456 | if (ret) { |
| 1457 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 1458 | pr_err("Failed to vote for SFPB clock with err %d\n", ret); |
| 1459 | goto perf_enable_exit; |
| 1460 | } |
| 1461 | |
| 1462 | perf_enable_exit: |
| 1463 | return ret; |
| 1464 | } |
| 1465 | |
| 1466 | static int qseecom_scale_bus_bandwidth(struct qseecom_dev_handle *data, |
| 1467 | void __user *argp) |
| 1468 | { |
| 1469 | int32_t ret = 0; |
| 1470 | int32_t req_mode; |
| 1471 | |
| 1472 | if (qseecom.no_clock_support) |
| 1473 | return 0; |
| 1474 | |
| 1475 | ret = copy_from_user(&req_mode, argp, sizeof(req_mode)); |
| 1476 | if (ret) { |
| 1477 | pr_err("copy_from_user failed\n"); |
| 1478 | return ret; |
| 1479 | } |
| 1480 | if (req_mode > HIGH) { |
| 1481 | pr_err("Invalid bandwidth mode (%d)\n", req_mode); |
| 1482 | return -EINVAL; |
| 1483 | } |
| 1484 | |
| 1485 | /* |
| 1486 | * Register bus bandwidth needs if bus scaling feature is enabled; |
| 1487 | * otherwise, qseecom enable/disable clocks for the client directly. |
| 1488 | */ |
| 1489 | if (qseecom.support_bus_scaling) { |
| 1490 | mutex_lock(&qsee_bw_mutex); |
| 1491 | ret = __qseecom_register_bus_bandwidth_needs(data, req_mode); |
| 1492 | mutex_unlock(&qsee_bw_mutex); |
| 1493 | } else { |
| 1494 | pr_debug("Bus scaling feature is NOT enabled\n"); |
| 1495 | pr_debug("request bandwidth mode %d for the client\n", |
| 1496 | req_mode); |
| 1497 | if (req_mode != INACTIVE) { |
| 1498 | ret = qseecom_perf_enable(data); |
| 1499 | if (ret) |
| 1500 | pr_err("Failed to vote for clock with err %d\n", |
| 1501 | ret); |
| 1502 | } else { |
| 1503 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 1504 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 1505 | } |
| 1506 | } |
| 1507 | return ret; |
| 1508 | } |
| 1509 | |
| 1510 | static void __qseecom_add_bw_scale_down_timer(uint32_t duration) |
| 1511 | { |
| 1512 | if (qseecom.no_clock_support) |
| 1513 | return; |
| 1514 | |
| 1515 | mutex_lock(&qsee_bw_mutex); |
| 1516 | qseecom.bw_scale_down_timer.expires = jiffies + |
| 1517 | msecs_to_jiffies(duration); |
| 1518 | mod_timer(&(qseecom.bw_scale_down_timer), |
| 1519 | qseecom.bw_scale_down_timer.expires); |
| 1520 | qseecom.timer_running = true; |
| 1521 | mutex_unlock(&qsee_bw_mutex); |
| 1522 | } |
| 1523 | |
| 1524 | static void __qseecom_disable_clk_scale_down(struct qseecom_dev_handle *data) |
| 1525 | { |
| 1526 | if (!qseecom.support_bus_scaling) |
| 1527 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 1528 | else |
| 1529 | __qseecom_add_bw_scale_down_timer( |
| 1530 | QSEECOM_LOAD_APP_CRYPTO_TIMEOUT); |
| 1531 | } |
| 1532 | |
| 1533 | static int __qseecom_enable_clk_scale_up(struct qseecom_dev_handle *data) |
| 1534 | { |
| 1535 | int ret = 0; |
| 1536 | |
| 1537 | if (qseecom.support_bus_scaling) { |
| 1538 | ret = qseecom_scale_bus_bandwidth_timer(MEDIUM); |
| 1539 | if (ret) |
| 1540 | pr_err("Failed to set bw MEDIUM.\n"); |
| 1541 | } else { |
| 1542 | ret = qsee_vote_for_clock(data, CLK_SFPB); |
| 1543 | if (ret) |
| 1544 | pr_err("Fail vote for clk SFPB ret %d\n", ret); |
| 1545 | } |
| 1546 | return ret; |
| 1547 | } |
| 1548 | |
| 1549 | static int qseecom_set_client_mem_param(struct qseecom_dev_handle *data, |
| 1550 | void __user *argp) |
| 1551 | { |
| 1552 | ion_phys_addr_t pa; |
| 1553 | int32_t ret; |
| 1554 | struct qseecom_set_sb_mem_param_req req; |
| 1555 | size_t len; |
| 1556 | |
| 1557 | /* Copy the relevant information needed for loading the image */ |
| 1558 | if (copy_from_user(&req, (void __user *)argp, sizeof(req))) |
| 1559 | return -EFAULT; |
| 1560 | |
| 1561 | if ((req.ifd_data_fd <= 0) || (req.virt_sb_base == NULL) || |
| 1562 | (req.sb_len == 0)) { |
| 1563 | pr_err("Inavlid input(s)ion_fd(%d), sb_len(%d), vaddr(0x%pK)\n", |
| 1564 | req.ifd_data_fd, req.sb_len, req.virt_sb_base); |
| 1565 | return -EFAULT; |
| 1566 | } |
| 1567 | if (!access_ok(VERIFY_WRITE, (void __user *)req.virt_sb_base, |
| 1568 | req.sb_len)) |
| 1569 | return -EFAULT; |
| 1570 | |
| 1571 | /* Get the handle of the shared fd */ |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 1572 | data->client.ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1573 | req.ifd_data_fd); |
| 1574 | if (IS_ERR_OR_NULL(data->client.ihandle)) { |
| 1575 | pr_err("Ion client could not retrieve the handle\n"); |
| 1576 | return -ENOMEM; |
| 1577 | } |
| 1578 | /* Get the physical address of the ION BUF */ |
| 1579 | ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len); |
| 1580 | if (ret) { |
| 1581 | |
| 1582 | pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n", |
| 1583 | ret); |
| 1584 | return ret; |
| 1585 | } |
| 1586 | |
| 1587 | if (len < req.sb_len) { |
| 1588 | pr_err("Requested length (0x%x) is > allocated (%zu)\n", |
| 1589 | req.sb_len, len); |
| 1590 | return -EINVAL; |
| 1591 | } |
| 1592 | /* Populate the structure for sending scm call to load image */ |
| 1593 | data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, |
| 1594 | data->client.ihandle); |
| 1595 | if (IS_ERR_OR_NULL(data->client.sb_virt)) { |
| 1596 | pr_err("ION memory mapping for client shared buf failed\n"); |
| 1597 | return -ENOMEM; |
| 1598 | } |
| 1599 | data->client.sb_phys = (phys_addr_t)pa; |
| 1600 | data->client.sb_length = req.sb_len; |
| 1601 | data->client.user_virt_sb_base = (uintptr_t)req.virt_sb_base; |
| 1602 | return 0; |
| 1603 | } |
| 1604 | |
| 1605 | static int __qseecom_listener_has_sent_rsp(struct qseecom_dev_handle *data) |
| 1606 | { |
| 1607 | int ret; |
| 1608 | |
| 1609 | ret = (qseecom.send_resp_flag != 0); |
| 1610 | return ret || data->abort; |
| 1611 | } |
| 1612 | |
| 1613 | static int __qseecom_reentrancy_listener_has_sent_rsp( |
| 1614 | struct qseecom_dev_handle *data, |
| 1615 | struct qseecom_registered_listener_list *ptr_svc) |
| 1616 | { |
| 1617 | int ret; |
| 1618 | |
| 1619 | ret = (ptr_svc->send_resp_flag != 0); |
| 1620 | return ret || data->abort; |
| 1621 | } |
| 1622 | |
| 1623 | static int __qseecom_qseos_fail_return_resp_tz(struct qseecom_dev_handle *data, |
| 1624 | struct qseecom_command_scm_resp *resp, |
| 1625 | struct qseecom_client_listener_data_irsp *send_data_rsp, |
| 1626 | struct qseecom_registered_listener_list *ptr_svc, |
| 1627 | uint32_t lstnr) { |
| 1628 | int ret = 0; |
| 1629 | |
| 1630 | send_data_rsp->status = QSEOS_RESULT_FAILURE; |
| 1631 | qseecom.send_resp_flag = 0; |
| 1632 | send_data_rsp->qsee_cmd_id = QSEOS_LISTENER_DATA_RSP_COMMAND; |
| 1633 | send_data_rsp->listener_id = lstnr; |
| 1634 | if (ptr_svc) |
| 1635 | pr_warn("listener_id:%x, lstnr: %x\n", |
| 1636 | ptr_svc->svc.listener_id, lstnr); |
| 1637 | if (ptr_svc && ptr_svc->ihandle) { |
| 1638 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, ptr_svc->ihandle, |
| 1639 | ptr_svc->sb_virt, ptr_svc->sb_length, |
| 1640 | ION_IOC_CLEAN_INV_CACHES); |
| 1641 | if (ret) { |
| 1642 | pr_err("cache operation failed %d\n", ret); |
| 1643 | return ret; |
| 1644 | } |
| 1645 | } |
| 1646 | |
| 1647 | if (lstnr == RPMB_SERVICE) { |
| 1648 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 1649 | if (ret) |
| 1650 | return ret; |
| 1651 | } |
| 1652 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, send_data_rsp, |
| 1653 | sizeof(send_data_rsp), resp, sizeof(*resp)); |
| 1654 | if (ret) { |
| 1655 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 1656 | ret, data->client.app_id); |
| 1657 | if (lstnr == RPMB_SERVICE) |
| 1658 | __qseecom_disable_clk(CLK_QSEE); |
| 1659 | return ret; |
| 1660 | } |
| 1661 | if ((resp->result != QSEOS_RESULT_SUCCESS) && |
| 1662 | (resp->result != QSEOS_RESULT_INCOMPLETE)) { |
| 1663 | pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n", |
| 1664 | resp->result, data->client.app_id, lstnr); |
| 1665 | ret = -EINVAL; |
| 1666 | } |
| 1667 | if (lstnr == RPMB_SERVICE) |
| 1668 | __qseecom_disable_clk(CLK_QSEE); |
| 1669 | return ret; |
| 1670 | } |
| 1671 | |
| 1672 | static void __qseecom_clean_listener_sglistinfo( |
| 1673 | struct qseecom_registered_listener_list *ptr_svc) |
| 1674 | { |
| 1675 | if (ptr_svc->sglist_cnt) { |
| 1676 | memset(ptr_svc->sglistinfo_ptr, 0, |
| 1677 | SGLISTINFO_TABLE_SIZE); |
| 1678 | ptr_svc->sglist_cnt = 0; |
| 1679 | } |
| 1680 | } |
| 1681 | |
| 1682 | static int __qseecom_process_incomplete_cmd(struct qseecom_dev_handle *data, |
| 1683 | struct qseecom_command_scm_resp *resp) |
| 1684 | { |
| 1685 | int ret = 0; |
| 1686 | int rc = 0; |
| 1687 | uint32_t lstnr; |
| 1688 | unsigned long flags; |
| 1689 | struct qseecom_client_listener_data_irsp send_data_rsp; |
| 1690 | struct qseecom_client_listener_data_64bit_irsp send_data_rsp_64bit; |
| 1691 | struct qseecom_registered_listener_list *ptr_svc = NULL; |
| 1692 | sigset_t new_sigset; |
| 1693 | sigset_t old_sigset; |
| 1694 | uint32_t status; |
| 1695 | void *cmd_buf = NULL; |
| 1696 | size_t cmd_len; |
| 1697 | struct sglist_info *table = NULL; |
| 1698 | |
| 1699 | while (resp->result == QSEOS_RESULT_INCOMPLETE) { |
| 1700 | lstnr = resp->data; |
| 1701 | /* |
| 1702 | * Wake up blocking lsitener service with the lstnr id |
| 1703 | */ |
| 1704 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, |
| 1705 | flags); |
| 1706 | list_for_each_entry(ptr_svc, |
| 1707 | &qseecom.registered_listener_list_head, list) { |
| 1708 | if (ptr_svc->svc.listener_id == lstnr) { |
| 1709 | ptr_svc->listener_in_use = true; |
| 1710 | ptr_svc->rcv_req_flag = 1; |
| 1711 | wake_up_interruptible(&ptr_svc->rcv_req_wq); |
| 1712 | break; |
| 1713 | } |
| 1714 | } |
| 1715 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, |
| 1716 | flags); |
| 1717 | |
| 1718 | if (ptr_svc == NULL) { |
| 1719 | pr_err("Listener Svc %d does not exist\n", lstnr); |
| 1720 | __qseecom_qseos_fail_return_resp_tz(data, resp, |
| 1721 | &send_data_rsp, ptr_svc, lstnr); |
| 1722 | return -EINVAL; |
| 1723 | } |
| 1724 | |
| 1725 | if (!ptr_svc->ihandle) { |
| 1726 | pr_err("Client handle is not initialized\n"); |
| 1727 | __qseecom_qseos_fail_return_resp_tz(data, resp, |
| 1728 | &send_data_rsp, ptr_svc, lstnr); |
| 1729 | return -EINVAL; |
| 1730 | } |
| 1731 | |
| 1732 | if (ptr_svc->svc.listener_id != lstnr) { |
| 1733 | pr_warn("Service requested does not exist\n"); |
| 1734 | __qseecom_qseos_fail_return_resp_tz(data, resp, |
| 1735 | &send_data_rsp, ptr_svc, lstnr); |
| 1736 | return -ERESTARTSYS; |
| 1737 | } |
| 1738 | pr_debug("waking up rcv_req_wq and waiting for send_resp_wq\n"); |
| 1739 | |
| 1740 | /* initialize the new signal mask with all signals*/ |
| 1741 | sigfillset(&new_sigset); |
| 1742 | /* block all signals */ |
| 1743 | sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset); |
| 1744 | |
| 1745 | do { |
| 1746 | /* |
| 1747 | * When reentrancy is not supported, check global |
| 1748 | * send_resp_flag; otherwise, check this listener's |
| 1749 | * send_resp_flag. |
| 1750 | */ |
| 1751 | if (!qseecom.qsee_reentrancy_support && |
| 1752 | !wait_event_freezable(qseecom.send_resp_wq, |
| 1753 | __qseecom_listener_has_sent_rsp(data))) { |
| 1754 | break; |
| 1755 | } |
| 1756 | |
| 1757 | if (qseecom.qsee_reentrancy_support && |
| 1758 | !wait_event_freezable(qseecom.send_resp_wq, |
| 1759 | __qseecom_reentrancy_listener_has_sent_rsp( |
| 1760 | data, ptr_svc))) { |
| 1761 | break; |
| 1762 | } |
| 1763 | } while (1); |
| 1764 | |
| 1765 | /* restore signal mask */ |
| 1766 | sigprocmask(SIG_SETMASK, &old_sigset, NULL); |
| 1767 | if (data->abort) { |
| 1768 | pr_err("Abort clnt %d waiting on lstnr svc %d, ret %d", |
| 1769 | data->client.app_id, lstnr, ret); |
| 1770 | rc = -ENODEV; |
| 1771 | status = QSEOS_RESULT_FAILURE; |
| 1772 | } else { |
| 1773 | status = QSEOS_RESULT_SUCCESS; |
| 1774 | } |
| 1775 | |
| 1776 | qseecom.send_resp_flag = 0; |
| 1777 | ptr_svc->send_resp_flag = 0; |
| 1778 | table = ptr_svc->sglistinfo_ptr; |
| 1779 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 1780 | send_data_rsp.listener_id = lstnr; |
| 1781 | send_data_rsp.status = status; |
| 1782 | send_data_rsp.sglistinfo_ptr = |
| 1783 | (uint32_t)virt_to_phys(table); |
| 1784 | send_data_rsp.sglistinfo_len = |
| 1785 | SGLISTINFO_TABLE_SIZE; |
| 1786 | dmac_flush_range((void *)table, |
| 1787 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 1788 | cmd_buf = (void *)&send_data_rsp; |
| 1789 | cmd_len = sizeof(send_data_rsp); |
| 1790 | } else { |
| 1791 | send_data_rsp_64bit.listener_id = lstnr; |
| 1792 | send_data_rsp_64bit.status = status; |
| 1793 | send_data_rsp_64bit.sglistinfo_ptr = |
| 1794 | virt_to_phys(table); |
| 1795 | send_data_rsp_64bit.sglistinfo_len = |
| 1796 | SGLISTINFO_TABLE_SIZE; |
| 1797 | dmac_flush_range((void *)table, |
| 1798 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 1799 | cmd_buf = (void *)&send_data_rsp_64bit; |
| 1800 | cmd_len = sizeof(send_data_rsp_64bit); |
| 1801 | } |
| 1802 | if (qseecom.whitelist_support == false) |
| 1803 | *(uint32_t *)cmd_buf = QSEOS_LISTENER_DATA_RSP_COMMAND; |
| 1804 | else |
| 1805 | *(uint32_t *)cmd_buf = |
| 1806 | QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST; |
| 1807 | if (ptr_svc) { |
| 1808 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 1809 | ptr_svc->ihandle, |
| 1810 | ptr_svc->sb_virt, ptr_svc->sb_length, |
| 1811 | ION_IOC_CLEAN_INV_CACHES); |
| 1812 | if (ret) { |
| 1813 | pr_err("cache operation failed %d\n", ret); |
| 1814 | return ret; |
| 1815 | } |
| 1816 | } |
| 1817 | |
| 1818 | if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE)) { |
| 1819 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 1820 | if (ret) |
| 1821 | return ret; |
| 1822 | } |
| 1823 | |
| 1824 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 1825 | cmd_buf, cmd_len, resp, sizeof(*resp)); |
| 1826 | ptr_svc->listener_in_use = false; |
| 1827 | __qseecom_clean_listener_sglistinfo(ptr_svc); |
| 1828 | if (ret) { |
| 1829 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 1830 | ret, data->client.app_id); |
| 1831 | if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE)) |
| 1832 | __qseecom_disable_clk(CLK_QSEE); |
| 1833 | return ret; |
| 1834 | } |
| 1835 | if ((resp->result != QSEOS_RESULT_SUCCESS) && |
| 1836 | (resp->result != QSEOS_RESULT_INCOMPLETE)) { |
| 1837 | pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n", |
| 1838 | resp->result, data->client.app_id, lstnr); |
| 1839 | ret = -EINVAL; |
| 1840 | } |
| 1841 | if ((lstnr == RPMB_SERVICE) || (lstnr == SSD_SERVICE)) |
| 1842 | __qseecom_disable_clk(CLK_QSEE); |
| 1843 | |
| 1844 | } |
| 1845 | if (rc) |
| 1846 | return rc; |
| 1847 | |
| 1848 | return ret; |
| 1849 | } |
| 1850 | |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1851 | static int __qseecom_process_blocked_on_listener_legacy( |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1852 | struct qseecom_command_scm_resp *resp, |
| 1853 | struct qseecom_registered_app_list *ptr_app, |
| 1854 | struct qseecom_dev_handle *data) |
| 1855 | { |
| 1856 | struct qseecom_registered_listener_list *list_ptr; |
| 1857 | int ret = 0; |
| 1858 | struct qseecom_continue_blocked_request_ireq ireq; |
| 1859 | struct qseecom_command_scm_resp continue_resp; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1860 | bool found_app = false; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1861 | unsigned long flags; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1862 | |
| 1863 | if (!resp || !data) { |
| 1864 | pr_err("invalid resp or data pointer\n"); |
| 1865 | ret = -EINVAL; |
| 1866 | goto exit; |
| 1867 | } |
| 1868 | |
| 1869 | /* find app_id & img_name from list */ |
| 1870 | if (!ptr_app) { |
| 1871 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 1872 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 1873 | list) { |
| 1874 | if ((ptr_app->app_id == data->client.app_id) && |
| 1875 | (!strcmp(ptr_app->app_name, |
| 1876 | data->client.app_name))) { |
| 1877 | found_app = true; |
| 1878 | break; |
| 1879 | } |
| 1880 | } |
| 1881 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 1882 | flags); |
| 1883 | if (!found_app) { |
| 1884 | pr_err("app_id %d (%s) is not found\n", |
| 1885 | data->client.app_id, |
| 1886 | (char *)data->client.app_name); |
| 1887 | ret = -ENOENT; |
| 1888 | goto exit; |
| 1889 | } |
| 1890 | } |
| 1891 | |
| 1892 | list_ptr = __qseecom_find_svc(resp->data); |
| 1893 | if (!list_ptr) { |
| 1894 | pr_err("Invalid listener ID\n"); |
| 1895 | ret = -ENODATA; |
| 1896 | goto exit; |
| 1897 | } |
| 1898 | pr_debug("lsntr %d in_use = %d\n", |
| 1899 | resp->data, list_ptr->listener_in_use); |
| 1900 | ptr_app->blocked_on_listener_id = resp->data; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1901 | |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1902 | /* sleep until listener is available */ |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1903 | do { |
| 1904 | qseecom.app_block_ref_cnt++; |
| 1905 | ptr_app->app_blocked = true; |
| 1906 | mutex_unlock(&app_access_lock); |
| 1907 | if (wait_event_freezable( |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1908 | list_ptr->listener_block_app_wq, |
| 1909 | !list_ptr->listener_in_use)) { |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1910 | pr_err("Interrupted: listener_id %d, app_id %d\n", |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1911 | resp->data, ptr_app->app_id); |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1912 | ret = -ERESTARTSYS; |
| 1913 | goto exit; |
| 1914 | } |
| 1915 | mutex_lock(&app_access_lock); |
| 1916 | ptr_app->app_blocked = false; |
| 1917 | qseecom.app_block_ref_cnt--; |
| 1918 | } while (list_ptr->listener_in_use); |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1919 | |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1920 | ptr_app->blocked_on_listener_id = 0; |
| 1921 | /* notify the blocked app that listener is available */ |
| 1922 | pr_warn("Lsntr %d is available, unblock app(%d) %s in TZ\n", |
| 1923 | resp->data, data->client.app_id, |
| 1924 | data->client.app_name); |
| 1925 | ireq.qsee_cmd_id = QSEOS_CONTINUE_BLOCKED_REQ_COMMAND; |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1926 | ireq.app_or_session_id = data->client.app_id; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 1927 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 1928 | &ireq, sizeof(ireq), |
| 1929 | &continue_resp, sizeof(continue_resp)); |
| 1930 | if (ret) { |
| 1931 | pr_err("scm_call for continue blocked req for app(%d) %s failed, ret %d\n", |
| 1932 | data->client.app_id, |
| 1933 | data->client.app_name, ret); |
| 1934 | goto exit; |
| 1935 | } |
| 1936 | /* |
| 1937 | * After TZ app is unblocked, then continue to next case |
| 1938 | * for incomplete request processing |
| 1939 | */ |
| 1940 | resp->result = QSEOS_RESULT_INCOMPLETE; |
| 1941 | exit: |
| 1942 | return ret; |
| 1943 | } |
| 1944 | |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1945 | static int __qseecom_process_blocked_on_listener_smcinvoke( |
| 1946 | struct qseecom_command_scm_resp *resp) |
| 1947 | { |
| 1948 | struct qseecom_registered_listener_list *list_ptr; |
| 1949 | int ret = 0; |
| 1950 | struct qseecom_continue_blocked_request_ireq ireq; |
| 1951 | struct qseecom_command_scm_resp continue_resp; |
| 1952 | unsigned int session_id; |
| 1953 | |
| 1954 | if (!resp) { |
| 1955 | pr_err("invalid resp pointer\n"); |
| 1956 | ret = -EINVAL; |
| 1957 | goto exit; |
| 1958 | } |
| 1959 | session_id = resp->resp_type; |
| 1960 | list_ptr = __qseecom_find_svc(resp->data); |
| 1961 | if (!list_ptr) { |
| 1962 | pr_err("Invalid listener ID\n"); |
| 1963 | ret = -ENODATA; |
| 1964 | goto exit; |
| 1965 | } |
| 1966 | pr_debug("lsntr %d in_use = %d\n", |
| 1967 | resp->data, list_ptr->listener_in_use); |
| 1968 | /* sleep until listener is available */ |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1969 | do { |
| 1970 | qseecom.app_block_ref_cnt++; |
| 1971 | mutex_unlock(&app_access_lock); |
| 1972 | if (wait_event_freezable( |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1973 | list_ptr->listener_block_app_wq, |
| 1974 | !list_ptr->listener_in_use)) { |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1975 | pr_err("Interrupted: listener_id %d, session_id %d\n", |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1976 | resp->data, session_id); |
Zhen Kong | d8cc005 | 2017-11-13 15:13:31 -0800 | [diff] [blame] | 1977 | ret = -ERESTARTSYS; |
| 1978 | goto exit; |
| 1979 | } |
| 1980 | mutex_lock(&app_access_lock); |
| 1981 | qseecom.app_block_ref_cnt--; |
| 1982 | } while (list_ptr->listener_in_use); |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 1983 | |
| 1984 | /* notify TZ that listener is available */ |
| 1985 | pr_warn("Lsntr %d is available, unblock session(%d) in TZ\n", |
| 1986 | resp->data, session_id); |
| 1987 | ireq.qsee_cmd_id = QSEOS_CONTINUE_BLOCKED_REQ_COMMAND; |
| 1988 | ireq.app_or_session_id = session_id; |
| 1989 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 1990 | &ireq, sizeof(ireq), |
| 1991 | &continue_resp, sizeof(continue_resp)); |
| 1992 | if (ret) { |
| 1993 | pr_err("scm_call for continue blocked req for session %d failed, ret %d\n", |
| 1994 | session_id, ret); |
| 1995 | goto exit; |
| 1996 | } |
| 1997 | resp->result = QSEOS_RESULT_INCOMPLETE; |
| 1998 | exit: |
| 1999 | return ret; |
| 2000 | } |
| 2001 | |
| 2002 | static int __qseecom_process_reentrancy_blocked_on_listener( |
| 2003 | struct qseecom_command_scm_resp *resp, |
| 2004 | struct qseecom_registered_app_list *ptr_app, |
| 2005 | struct qseecom_dev_handle *data) |
| 2006 | { |
| 2007 | if (!qseecom.smcinvoke_support) |
| 2008 | return __qseecom_process_blocked_on_listener_legacy( |
| 2009 | resp, ptr_app, data); |
| 2010 | else |
| 2011 | return __qseecom_process_blocked_on_listener_smcinvoke( |
| 2012 | resp); |
| 2013 | } |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2014 | static int __qseecom_reentrancy_process_incomplete_cmd( |
| 2015 | struct qseecom_dev_handle *data, |
| 2016 | struct qseecom_command_scm_resp *resp) |
| 2017 | { |
| 2018 | int ret = 0; |
| 2019 | int rc = 0; |
| 2020 | uint32_t lstnr; |
| 2021 | unsigned long flags; |
| 2022 | struct qseecom_client_listener_data_irsp send_data_rsp; |
| 2023 | struct qseecom_client_listener_data_64bit_irsp send_data_rsp_64bit; |
| 2024 | struct qseecom_registered_listener_list *ptr_svc = NULL; |
| 2025 | sigset_t new_sigset; |
| 2026 | sigset_t old_sigset; |
| 2027 | uint32_t status; |
| 2028 | void *cmd_buf = NULL; |
| 2029 | size_t cmd_len; |
| 2030 | struct sglist_info *table = NULL; |
| 2031 | |
| 2032 | while (ret == 0 && rc == 0 && resp->result == QSEOS_RESULT_INCOMPLETE) { |
| 2033 | lstnr = resp->data; |
| 2034 | /* |
| 2035 | * Wake up blocking lsitener service with the lstnr id |
| 2036 | */ |
| 2037 | spin_lock_irqsave(&qseecom.registered_listener_list_lock, |
| 2038 | flags); |
| 2039 | list_for_each_entry(ptr_svc, |
| 2040 | &qseecom.registered_listener_list_head, list) { |
| 2041 | if (ptr_svc->svc.listener_id == lstnr) { |
| 2042 | ptr_svc->listener_in_use = true; |
| 2043 | ptr_svc->rcv_req_flag = 1; |
| 2044 | wake_up_interruptible(&ptr_svc->rcv_req_wq); |
| 2045 | break; |
| 2046 | } |
| 2047 | } |
| 2048 | spin_unlock_irqrestore(&qseecom.registered_listener_list_lock, |
| 2049 | flags); |
| 2050 | |
| 2051 | if (ptr_svc == NULL) { |
| 2052 | pr_err("Listener Svc %d does not exist\n", lstnr); |
| 2053 | return -EINVAL; |
| 2054 | } |
| 2055 | |
| 2056 | if (!ptr_svc->ihandle) { |
| 2057 | pr_err("Client handle is not initialized\n"); |
| 2058 | return -EINVAL; |
| 2059 | } |
| 2060 | |
| 2061 | if (ptr_svc->svc.listener_id != lstnr) { |
| 2062 | pr_warn("Service requested does not exist\n"); |
| 2063 | return -ERESTARTSYS; |
| 2064 | } |
| 2065 | pr_debug("waking up rcv_req_wq and waiting for send_resp_wq\n"); |
| 2066 | |
| 2067 | /* initialize the new signal mask with all signals*/ |
| 2068 | sigfillset(&new_sigset); |
| 2069 | |
| 2070 | /* block all signals */ |
| 2071 | sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset); |
| 2072 | |
| 2073 | /* unlock mutex btw waking listener and sleep-wait */ |
| 2074 | mutex_unlock(&app_access_lock); |
| 2075 | do { |
| 2076 | if (!wait_event_freezable(qseecom.send_resp_wq, |
| 2077 | __qseecom_reentrancy_listener_has_sent_rsp( |
| 2078 | data, ptr_svc))) { |
| 2079 | break; |
| 2080 | } |
| 2081 | } while (1); |
| 2082 | /* lock mutex again after resp sent */ |
| 2083 | mutex_lock(&app_access_lock); |
| 2084 | ptr_svc->send_resp_flag = 0; |
| 2085 | qseecom.send_resp_flag = 0; |
| 2086 | |
| 2087 | /* restore signal mask */ |
| 2088 | sigprocmask(SIG_SETMASK, &old_sigset, NULL); |
| 2089 | if (data->abort) { |
| 2090 | pr_err("Abort clnt %d waiting on lstnr svc %d, ret %d", |
| 2091 | data->client.app_id, lstnr, ret); |
| 2092 | rc = -ENODEV; |
| 2093 | status = QSEOS_RESULT_FAILURE; |
| 2094 | } else { |
| 2095 | status = QSEOS_RESULT_SUCCESS; |
| 2096 | } |
| 2097 | table = ptr_svc->sglistinfo_ptr; |
| 2098 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 2099 | send_data_rsp.listener_id = lstnr; |
| 2100 | send_data_rsp.status = status; |
| 2101 | send_data_rsp.sglistinfo_ptr = |
| 2102 | (uint32_t)virt_to_phys(table); |
| 2103 | send_data_rsp.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 2104 | dmac_flush_range((void *)table, |
| 2105 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 2106 | cmd_buf = (void *)&send_data_rsp; |
| 2107 | cmd_len = sizeof(send_data_rsp); |
| 2108 | } else { |
| 2109 | send_data_rsp_64bit.listener_id = lstnr; |
| 2110 | send_data_rsp_64bit.status = status; |
| 2111 | send_data_rsp_64bit.sglistinfo_ptr = |
| 2112 | virt_to_phys(table); |
| 2113 | send_data_rsp_64bit.sglistinfo_len = |
| 2114 | SGLISTINFO_TABLE_SIZE; |
| 2115 | dmac_flush_range((void *)table, |
| 2116 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 2117 | cmd_buf = (void *)&send_data_rsp_64bit; |
| 2118 | cmd_len = sizeof(send_data_rsp_64bit); |
| 2119 | } |
| 2120 | if (qseecom.whitelist_support == false) |
| 2121 | *(uint32_t *)cmd_buf = QSEOS_LISTENER_DATA_RSP_COMMAND; |
| 2122 | else |
| 2123 | *(uint32_t *)cmd_buf = |
| 2124 | QSEOS_LISTENER_DATA_RSP_COMMAND_WHITELIST; |
| 2125 | if (ptr_svc) { |
| 2126 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 2127 | ptr_svc->ihandle, |
| 2128 | ptr_svc->sb_virt, ptr_svc->sb_length, |
| 2129 | ION_IOC_CLEAN_INV_CACHES); |
| 2130 | if (ret) { |
| 2131 | pr_err("cache operation failed %d\n", ret); |
| 2132 | return ret; |
| 2133 | } |
| 2134 | } |
| 2135 | if (lstnr == RPMB_SERVICE) { |
| 2136 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 2137 | if (ret) |
| 2138 | return ret; |
| 2139 | } |
| 2140 | |
| 2141 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 2142 | cmd_buf, cmd_len, resp, sizeof(*resp)); |
| 2143 | ptr_svc->listener_in_use = false; |
| 2144 | __qseecom_clean_listener_sglistinfo(ptr_svc); |
| 2145 | wake_up_interruptible(&ptr_svc->listener_block_app_wq); |
| 2146 | |
| 2147 | if (ret) { |
| 2148 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 2149 | ret, data->client.app_id); |
| 2150 | goto exit; |
| 2151 | } |
| 2152 | |
| 2153 | switch (resp->result) { |
| 2154 | case QSEOS_RESULT_BLOCKED_ON_LISTENER: |
| 2155 | pr_warn("send lsr %d rsp, but app %d block on lsr %d\n", |
| 2156 | lstnr, data->client.app_id, resp->data); |
| 2157 | if (lstnr == resp->data) { |
| 2158 | pr_err("lstnr %d should not be blocked!\n", |
| 2159 | lstnr); |
| 2160 | ret = -EINVAL; |
| 2161 | goto exit; |
| 2162 | } |
| 2163 | ret = __qseecom_process_reentrancy_blocked_on_listener( |
| 2164 | resp, NULL, data); |
| 2165 | if (ret) { |
| 2166 | pr_err("failed to process App(%d) %s blocked on listener %d\n", |
| 2167 | data->client.app_id, |
| 2168 | data->client.app_name, resp->data); |
| 2169 | goto exit; |
| 2170 | } |
| 2171 | case QSEOS_RESULT_SUCCESS: |
| 2172 | case QSEOS_RESULT_INCOMPLETE: |
| 2173 | break; |
| 2174 | default: |
| 2175 | pr_err("fail:resp res= %d,app_id = %d,lstr = %d\n", |
| 2176 | resp->result, data->client.app_id, lstnr); |
| 2177 | ret = -EINVAL; |
| 2178 | goto exit; |
| 2179 | } |
| 2180 | exit: |
| 2181 | if (lstnr == RPMB_SERVICE) |
| 2182 | __qseecom_disable_clk(CLK_QSEE); |
| 2183 | |
| 2184 | } |
| 2185 | if (rc) |
| 2186 | return rc; |
| 2187 | |
| 2188 | return ret; |
| 2189 | } |
| 2190 | |
| 2191 | /* |
| 2192 | * QSEE doesn't support OS level cmds reentrancy until RE phase-3, |
| 2193 | * and QSEE OS level scm_call cmds will fail if there is any blocked TZ app. |
| 2194 | * So, needs to first check if no app blocked before sending OS level scm call, |
| 2195 | * then wait until all apps are unblocked. |
| 2196 | */ |
| 2197 | static void __qseecom_reentrancy_check_if_no_app_blocked(uint32_t smc_id) |
| 2198 | { |
| 2199 | sigset_t new_sigset, old_sigset; |
| 2200 | |
| 2201 | if (qseecom.qsee_reentrancy_support > QSEE_REENTRANCY_PHASE_0 && |
| 2202 | qseecom.qsee_reentrancy_support < QSEE_REENTRANCY_PHASE_3 && |
| 2203 | IS_OWNER_TRUSTED_OS(TZ_SYSCALL_OWNER_ID(smc_id))) { |
| 2204 | /* thread sleep until this app unblocked */ |
| 2205 | while (qseecom.app_block_ref_cnt > 0) { |
| 2206 | sigfillset(&new_sigset); |
| 2207 | sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset); |
| 2208 | mutex_unlock(&app_access_lock); |
| 2209 | do { |
| 2210 | if (!wait_event_freezable(qseecom.app_block_wq, |
| 2211 | (qseecom.app_block_ref_cnt == 0))) |
| 2212 | break; |
| 2213 | } while (1); |
| 2214 | mutex_lock(&app_access_lock); |
| 2215 | sigprocmask(SIG_SETMASK, &old_sigset, NULL); |
| 2216 | } |
| 2217 | } |
| 2218 | } |
| 2219 | |
| 2220 | /* |
| 2221 | * scm_call of send data will fail if this TA is blocked or there are more |
| 2222 | * than one TA requesting listener services; So, first check to see if need |
| 2223 | * to wait. |
| 2224 | */ |
| 2225 | static void __qseecom_reentrancy_check_if_this_app_blocked( |
| 2226 | struct qseecom_registered_app_list *ptr_app) |
| 2227 | { |
| 2228 | sigset_t new_sigset, old_sigset; |
| 2229 | |
| 2230 | if (qseecom.qsee_reentrancy_support) { |
| 2231 | while (ptr_app->app_blocked || qseecom.app_block_ref_cnt > 1) { |
| 2232 | /* thread sleep until this app unblocked */ |
| 2233 | sigfillset(&new_sigset); |
| 2234 | sigprocmask(SIG_SETMASK, &new_sigset, &old_sigset); |
| 2235 | mutex_unlock(&app_access_lock); |
| 2236 | do { |
| 2237 | if (!wait_event_freezable(qseecom.app_block_wq, |
| 2238 | (!ptr_app->app_blocked && |
| 2239 | qseecom.app_block_ref_cnt <= 1))) |
| 2240 | break; |
| 2241 | } while (1); |
| 2242 | mutex_lock(&app_access_lock); |
| 2243 | sigprocmask(SIG_SETMASK, &old_sigset, NULL); |
| 2244 | } |
| 2245 | } |
| 2246 | } |
| 2247 | |
| 2248 | static int __qseecom_check_app_exists(struct qseecom_check_app_ireq req, |
| 2249 | uint32_t *app_id) |
| 2250 | { |
| 2251 | int32_t ret; |
| 2252 | struct qseecom_command_scm_resp resp; |
| 2253 | bool found_app = false; |
| 2254 | struct qseecom_registered_app_list *entry = NULL; |
| 2255 | unsigned long flags = 0; |
| 2256 | |
| 2257 | if (!app_id) { |
| 2258 | pr_err("Null pointer to app_id\n"); |
| 2259 | return -EINVAL; |
| 2260 | } |
| 2261 | *app_id = 0; |
| 2262 | |
| 2263 | /* check if app exists and has been registered locally */ |
| 2264 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 2265 | list_for_each_entry(entry, |
| 2266 | &qseecom.registered_app_list_head, list) { |
| 2267 | if (!strcmp(entry->app_name, req.app_name)) { |
| 2268 | found_app = true; |
| 2269 | break; |
| 2270 | } |
| 2271 | } |
| 2272 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags); |
| 2273 | if (found_app) { |
| 2274 | pr_debug("Found app with id %d\n", entry->app_id); |
| 2275 | *app_id = entry->app_id; |
| 2276 | return 0; |
| 2277 | } |
| 2278 | |
| 2279 | memset((void *)&resp, 0, sizeof(resp)); |
| 2280 | |
| 2281 | /* SCM_CALL to check if app_id for the mentioned app exists */ |
| 2282 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 2283 | sizeof(struct qseecom_check_app_ireq), |
| 2284 | &resp, sizeof(resp)); |
| 2285 | if (ret) { |
| 2286 | pr_err("scm_call to check if app is already loaded failed\n"); |
| 2287 | return -EINVAL; |
| 2288 | } |
| 2289 | |
| 2290 | if (resp.result == QSEOS_RESULT_FAILURE) |
| 2291 | return 0; |
| 2292 | |
| 2293 | switch (resp.resp_type) { |
| 2294 | /*qsee returned listener type response */ |
| 2295 | case QSEOS_LISTENER_ID: |
| 2296 | pr_err("resp type is of listener type instead of app"); |
| 2297 | return -EINVAL; |
| 2298 | case QSEOS_APP_ID: |
| 2299 | *app_id = resp.data; |
| 2300 | return 0; |
| 2301 | default: |
| 2302 | pr_err("invalid resp type (%d) from qsee", |
| 2303 | resp.resp_type); |
| 2304 | return -ENODEV; |
| 2305 | } |
| 2306 | } |
| 2307 | |
| 2308 | static int qseecom_load_app(struct qseecom_dev_handle *data, void __user *argp) |
| 2309 | { |
| 2310 | struct qseecom_registered_app_list *entry = NULL; |
| 2311 | unsigned long flags = 0; |
| 2312 | u32 app_id = 0; |
| 2313 | struct ion_handle *ihandle; /* Ion handle */ |
| 2314 | struct qseecom_load_img_req load_img_req; |
| 2315 | int32_t ret = 0; |
| 2316 | ion_phys_addr_t pa = 0; |
| 2317 | size_t len; |
| 2318 | struct qseecom_command_scm_resp resp; |
| 2319 | struct qseecom_check_app_ireq req; |
| 2320 | struct qseecom_load_app_ireq load_req; |
| 2321 | struct qseecom_load_app_64bit_ireq load_req_64bit; |
| 2322 | void *cmd_buf = NULL; |
| 2323 | size_t cmd_len; |
| 2324 | bool first_time = false; |
| 2325 | |
| 2326 | /* Copy the relevant information needed for loading the image */ |
| 2327 | if (copy_from_user(&load_img_req, |
| 2328 | (void __user *)argp, |
| 2329 | sizeof(struct qseecom_load_img_req))) { |
| 2330 | pr_err("copy_from_user failed\n"); |
| 2331 | return -EFAULT; |
| 2332 | } |
| 2333 | |
| 2334 | /* Check and load cmnlib */ |
| 2335 | if (qseecom.qsee_version > QSEEE_VERSION_00) { |
| 2336 | if (!qseecom.commonlib_loaded && |
| 2337 | load_img_req.app_arch == ELFCLASS32) { |
| 2338 | ret = qseecom_load_commonlib_image(data, "cmnlib"); |
| 2339 | if (ret) { |
| 2340 | pr_err("failed to load cmnlib\n"); |
| 2341 | return -EIO; |
| 2342 | } |
| 2343 | qseecom.commonlib_loaded = true; |
| 2344 | pr_debug("cmnlib is loaded\n"); |
| 2345 | } |
| 2346 | |
| 2347 | if (!qseecom.commonlib64_loaded && |
| 2348 | load_img_req.app_arch == ELFCLASS64) { |
| 2349 | ret = qseecom_load_commonlib_image(data, "cmnlib64"); |
| 2350 | if (ret) { |
| 2351 | pr_err("failed to load cmnlib64\n"); |
| 2352 | return -EIO; |
| 2353 | } |
| 2354 | qseecom.commonlib64_loaded = true; |
| 2355 | pr_debug("cmnlib64 is loaded\n"); |
| 2356 | } |
| 2357 | } |
| 2358 | |
| 2359 | if (qseecom.support_bus_scaling) { |
| 2360 | mutex_lock(&qsee_bw_mutex); |
| 2361 | ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM); |
| 2362 | mutex_unlock(&qsee_bw_mutex); |
| 2363 | if (ret) |
| 2364 | return ret; |
| 2365 | } |
| 2366 | |
| 2367 | /* Vote for the SFPB clock */ |
| 2368 | ret = __qseecom_enable_clk_scale_up(data); |
| 2369 | if (ret) |
| 2370 | goto enable_clk_err; |
| 2371 | |
| 2372 | req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
| 2373 | load_img_req.img_name[MAX_APP_NAME_SIZE-1] = '\0'; |
| 2374 | strlcpy(req.app_name, load_img_req.img_name, MAX_APP_NAME_SIZE); |
| 2375 | |
| 2376 | ret = __qseecom_check_app_exists(req, &app_id); |
| 2377 | if (ret < 0) |
| 2378 | goto loadapp_err; |
| 2379 | |
| 2380 | if (app_id) { |
| 2381 | pr_debug("App id %d (%s) already exists\n", app_id, |
| 2382 | (char *)(req.app_name)); |
| 2383 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 2384 | list_for_each_entry(entry, |
| 2385 | &qseecom.registered_app_list_head, list){ |
| 2386 | if (entry->app_id == app_id) { |
| 2387 | entry->ref_cnt++; |
| 2388 | break; |
| 2389 | } |
| 2390 | } |
| 2391 | spin_unlock_irqrestore( |
| 2392 | &qseecom.registered_app_list_lock, flags); |
| 2393 | ret = 0; |
| 2394 | } else { |
| 2395 | first_time = true; |
| 2396 | pr_warn("App (%s) does'nt exist, loading apps for first time\n", |
| 2397 | (char *)(load_img_req.img_name)); |
| 2398 | /* Get the handle of the shared fd */ |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 2399 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2400 | load_img_req.ifd_data_fd); |
| 2401 | if (IS_ERR_OR_NULL(ihandle)) { |
| 2402 | pr_err("Ion client could not retrieve the handle\n"); |
| 2403 | ret = -ENOMEM; |
| 2404 | goto loadapp_err; |
| 2405 | } |
| 2406 | |
| 2407 | /* Get the physical address of the ION BUF */ |
| 2408 | ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len); |
| 2409 | if (ret) { |
| 2410 | pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n", |
| 2411 | ret); |
| 2412 | goto loadapp_err; |
| 2413 | } |
| 2414 | if (load_img_req.mdt_len > len || load_img_req.img_len > len) { |
| 2415 | pr_err("ion len %zu is smaller than mdt_len %u or img_len %u\n", |
| 2416 | len, load_img_req.mdt_len, |
| 2417 | load_img_req.img_len); |
| 2418 | ret = -EINVAL; |
| 2419 | goto loadapp_err; |
| 2420 | } |
| 2421 | /* Populate the structure for sending scm call to load image */ |
| 2422 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 2423 | load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 2424 | load_req.mdt_len = load_img_req.mdt_len; |
| 2425 | load_req.img_len = load_img_req.img_len; |
| 2426 | strlcpy(load_req.app_name, load_img_req.img_name, |
| 2427 | MAX_APP_NAME_SIZE); |
| 2428 | load_req.phy_addr = (uint32_t)pa; |
| 2429 | cmd_buf = (void *)&load_req; |
| 2430 | cmd_len = sizeof(struct qseecom_load_app_ireq); |
| 2431 | } else { |
| 2432 | load_req_64bit.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 2433 | load_req_64bit.mdt_len = load_img_req.mdt_len; |
| 2434 | load_req_64bit.img_len = load_img_req.img_len; |
| 2435 | strlcpy(load_req_64bit.app_name, load_img_req.img_name, |
| 2436 | MAX_APP_NAME_SIZE); |
| 2437 | load_req_64bit.phy_addr = (uint64_t)pa; |
| 2438 | cmd_buf = (void *)&load_req_64bit; |
| 2439 | cmd_len = sizeof(struct qseecom_load_app_64bit_ireq); |
| 2440 | } |
| 2441 | |
| 2442 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len, |
| 2443 | ION_IOC_CLEAN_INV_CACHES); |
| 2444 | if (ret) { |
| 2445 | pr_err("cache operation failed %d\n", ret); |
| 2446 | goto loadapp_err; |
| 2447 | } |
| 2448 | |
| 2449 | /* SCM_CALL to load the app and get the app_id back */ |
| 2450 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, |
| 2451 | cmd_len, &resp, sizeof(resp)); |
| 2452 | if (ret) { |
| 2453 | pr_err("scm_call to load app failed\n"); |
| 2454 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2455 | ion_free(qseecom.ion_clnt, ihandle); |
| 2456 | ret = -EINVAL; |
| 2457 | goto loadapp_err; |
| 2458 | } |
| 2459 | |
| 2460 | if (resp.result == QSEOS_RESULT_FAILURE) { |
| 2461 | pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n"); |
| 2462 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2463 | ion_free(qseecom.ion_clnt, ihandle); |
| 2464 | ret = -EFAULT; |
| 2465 | goto loadapp_err; |
| 2466 | } |
| 2467 | |
| 2468 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 2469 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2470 | if (ret) { |
| 2471 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 2472 | ret); |
| 2473 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2474 | ion_free(qseecom.ion_clnt, ihandle); |
| 2475 | ret = -EFAULT; |
| 2476 | goto loadapp_err; |
| 2477 | } |
| 2478 | } |
| 2479 | |
| 2480 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 2481 | pr_err("scm_call failed resp.result unknown, %d\n", |
| 2482 | resp.result); |
| 2483 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2484 | ion_free(qseecom.ion_clnt, ihandle); |
| 2485 | ret = -EFAULT; |
| 2486 | goto loadapp_err; |
| 2487 | } |
| 2488 | |
| 2489 | app_id = resp.data; |
| 2490 | |
| 2491 | entry = kmalloc(sizeof(*entry), GFP_KERNEL); |
| 2492 | if (!entry) { |
| 2493 | ret = -ENOMEM; |
| 2494 | goto loadapp_err; |
| 2495 | } |
| 2496 | entry->app_id = app_id; |
| 2497 | entry->ref_cnt = 1; |
| 2498 | entry->app_arch = load_img_req.app_arch; |
| 2499 | /* |
| 2500 | * keymaster app may be first loaded as "keymaste" by qseecomd, |
| 2501 | * and then used as "keymaster" on some targets. To avoid app |
| 2502 | * name checking error, register "keymaster" into app_list and |
| 2503 | * thread private data. |
| 2504 | */ |
| 2505 | if (!strcmp(load_img_req.img_name, "keymaste")) |
| 2506 | strlcpy(entry->app_name, "keymaster", |
| 2507 | MAX_APP_NAME_SIZE); |
| 2508 | else |
| 2509 | strlcpy(entry->app_name, load_img_req.img_name, |
| 2510 | MAX_APP_NAME_SIZE); |
| 2511 | entry->app_blocked = false; |
| 2512 | entry->blocked_on_listener_id = 0; |
| 2513 | |
| 2514 | /* Deallocate the handle */ |
| 2515 | if (!IS_ERR_OR_NULL(ihandle)) |
| 2516 | ion_free(qseecom.ion_clnt, ihandle); |
| 2517 | |
| 2518 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 2519 | list_add_tail(&entry->list, &qseecom.registered_app_list_head); |
| 2520 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 2521 | flags); |
| 2522 | |
| 2523 | pr_warn("App with id %u (%s) now loaded\n", app_id, |
| 2524 | (char *)(load_img_req.img_name)); |
| 2525 | } |
| 2526 | data->client.app_id = app_id; |
| 2527 | data->client.app_arch = load_img_req.app_arch; |
| 2528 | if (!strcmp(load_img_req.img_name, "keymaste")) |
| 2529 | strlcpy(data->client.app_name, "keymaster", MAX_APP_NAME_SIZE); |
| 2530 | else |
| 2531 | strlcpy(data->client.app_name, load_img_req.img_name, |
| 2532 | MAX_APP_NAME_SIZE); |
| 2533 | load_img_req.app_id = app_id; |
| 2534 | if (copy_to_user(argp, &load_img_req, sizeof(load_img_req))) { |
| 2535 | pr_err("copy_to_user failed\n"); |
| 2536 | ret = -EFAULT; |
| 2537 | if (first_time == true) { |
| 2538 | spin_lock_irqsave( |
| 2539 | &qseecom.registered_app_list_lock, flags); |
| 2540 | list_del(&entry->list); |
| 2541 | spin_unlock_irqrestore( |
| 2542 | &qseecom.registered_app_list_lock, flags); |
| 2543 | kzfree(entry); |
| 2544 | } |
| 2545 | } |
| 2546 | |
| 2547 | loadapp_err: |
| 2548 | __qseecom_disable_clk_scale_down(data); |
| 2549 | enable_clk_err: |
| 2550 | if (qseecom.support_bus_scaling) { |
| 2551 | mutex_lock(&qsee_bw_mutex); |
| 2552 | qseecom_unregister_bus_bandwidth_needs(data); |
| 2553 | mutex_unlock(&qsee_bw_mutex); |
| 2554 | } |
| 2555 | return ret; |
| 2556 | } |
| 2557 | |
| 2558 | static int __qseecom_cleanup_app(struct qseecom_dev_handle *data) |
| 2559 | { |
| 2560 | int ret = 1; /* Set unload app */ |
| 2561 | |
| 2562 | wake_up_all(&qseecom.send_resp_wq); |
| 2563 | if (qseecom.qsee_reentrancy_support) |
| 2564 | mutex_unlock(&app_access_lock); |
| 2565 | while (atomic_read(&data->ioctl_count) > 1) { |
| 2566 | if (wait_event_freezable(data->abort_wq, |
| 2567 | atomic_read(&data->ioctl_count) <= 1)) { |
| 2568 | pr_err("Interrupted from abort\n"); |
| 2569 | ret = -ERESTARTSYS; |
| 2570 | break; |
| 2571 | } |
| 2572 | } |
| 2573 | if (qseecom.qsee_reentrancy_support) |
| 2574 | mutex_lock(&app_access_lock); |
| 2575 | return ret; |
| 2576 | } |
| 2577 | |
| 2578 | static int qseecom_unmap_ion_allocated_memory(struct qseecom_dev_handle *data) |
| 2579 | { |
| 2580 | int ret = 0; |
| 2581 | |
| 2582 | if (!IS_ERR_OR_NULL(data->client.ihandle)) { |
| 2583 | ion_unmap_kernel(qseecom.ion_clnt, data->client.ihandle); |
| 2584 | ion_free(qseecom.ion_clnt, data->client.ihandle); |
| 2585 | data->client.ihandle = NULL; |
| 2586 | } |
| 2587 | return ret; |
| 2588 | } |
| 2589 | |
| 2590 | static int qseecom_unload_app(struct qseecom_dev_handle *data, |
| 2591 | bool app_crash) |
| 2592 | { |
| 2593 | unsigned long flags; |
| 2594 | unsigned long flags1; |
| 2595 | int ret = 0; |
| 2596 | struct qseecom_command_scm_resp resp; |
| 2597 | struct qseecom_registered_app_list *ptr_app = NULL; |
| 2598 | bool unload = false; |
| 2599 | bool found_app = false; |
| 2600 | bool found_dead_app = false; |
| 2601 | |
| 2602 | if (!data) { |
| 2603 | pr_err("Invalid/uninitialized device handle\n"); |
| 2604 | return -EINVAL; |
| 2605 | } |
| 2606 | |
| 2607 | if (!memcmp(data->client.app_name, "keymaste", strlen("keymaste"))) { |
| 2608 | pr_debug("Do not unload keymaster app from tz\n"); |
| 2609 | goto unload_exit; |
| 2610 | } |
| 2611 | |
| 2612 | __qseecom_cleanup_app(data); |
| 2613 | __qseecom_reentrancy_check_if_no_app_blocked(TZ_OS_APP_SHUTDOWN_ID); |
| 2614 | |
| 2615 | if (data->client.app_id > 0) { |
| 2616 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 2617 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 2618 | list) { |
| 2619 | if (ptr_app->app_id == data->client.app_id) { |
| 2620 | if (!strcmp((void *)ptr_app->app_name, |
| 2621 | (void *)data->client.app_name)) { |
| 2622 | found_app = true; |
Zhen Kong | af93d7a | 2017-10-13 14:01:48 -0700 | [diff] [blame] | 2623 | if (ptr_app->app_blocked) |
| 2624 | app_crash = false; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2625 | if (app_crash || ptr_app->ref_cnt == 1) |
| 2626 | unload = true; |
| 2627 | break; |
| 2628 | } |
| 2629 | found_dead_app = true; |
| 2630 | break; |
| 2631 | } |
| 2632 | } |
| 2633 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 2634 | flags); |
| 2635 | if (found_app == false && found_dead_app == false) { |
| 2636 | pr_err("Cannot find app with id = %d (%s)\n", |
| 2637 | data->client.app_id, |
| 2638 | (char *)data->client.app_name); |
| 2639 | ret = -EINVAL; |
| 2640 | goto unload_exit; |
| 2641 | } |
| 2642 | } |
| 2643 | |
| 2644 | if (found_dead_app) |
| 2645 | pr_warn("cleanup app_id %d(%s)\n", data->client.app_id, |
| 2646 | (char *)data->client.app_name); |
| 2647 | |
| 2648 | if (unload) { |
| 2649 | struct qseecom_unload_app_ireq req; |
| 2650 | /* Populate the structure for sending scm call to load image */ |
| 2651 | req.qsee_cmd_id = QSEOS_APP_SHUTDOWN_COMMAND; |
| 2652 | req.app_id = data->client.app_id; |
| 2653 | |
| 2654 | /* SCM_CALL to unload the app */ |
| 2655 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 2656 | sizeof(struct qseecom_unload_app_ireq), |
| 2657 | &resp, sizeof(resp)); |
| 2658 | if (ret) { |
| 2659 | pr_err("scm_call to unload app (id = %d) failed\n", |
| 2660 | req.app_id); |
| 2661 | ret = -EFAULT; |
| 2662 | goto unload_exit; |
| 2663 | } else { |
| 2664 | pr_warn("App id %d now unloaded\n", req.app_id); |
| 2665 | } |
| 2666 | if (resp.result == QSEOS_RESULT_FAILURE) { |
| 2667 | pr_err("app (%d) unload_failed!!\n", |
| 2668 | data->client.app_id); |
| 2669 | ret = -EFAULT; |
| 2670 | goto unload_exit; |
| 2671 | } |
| 2672 | if (resp.result == QSEOS_RESULT_SUCCESS) |
| 2673 | pr_debug("App (%d) is unloaded!!\n", |
| 2674 | data->client.app_id); |
| 2675 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 2676 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2677 | if (ret) { |
| 2678 | pr_err("process_incomplete_cmd fail err: %d\n", |
| 2679 | ret); |
| 2680 | goto unload_exit; |
| 2681 | } |
| 2682 | } |
| 2683 | } |
| 2684 | |
| 2685 | if (found_app) { |
| 2686 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags1); |
| 2687 | if (app_crash) { |
| 2688 | ptr_app->ref_cnt = 0; |
| 2689 | pr_debug("app_crash: ref_count = 0\n"); |
| 2690 | } else { |
| 2691 | if (ptr_app->ref_cnt == 1) { |
| 2692 | ptr_app->ref_cnt = 0; |
| 2693 | pr_debug("ref_count set to 0\n"); |
| 2694 | } else { |
| 2695 | ptr_app->ref_cnt--; |
| 2696 | pr_debug("Can't unload app(%d) inuse\n", |
| 2697 | ptr_app->app_id); |
| 2698 | } |
| 2699 | } |
| 2700 | if (unload) { |
| 2701 | list_del(&ptr_app->list); |
| 2702 | kzfree(ptr_app); |
| 2703 | } |
| 2704 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 2705 | flags1); |
| 2706 | } |
| 2707 | unload_exit: |
| 2708 | qseecom_unmap_ion_allocated_memory(data); |
| 2709 | data->released = true; |
| 2710 | return ret; |
| 2711 | } |
| 2712 | |
| 2713 | static phys_addr_t __qseecom_uvirt_to_kphys(struct qseecom_dev_handle *data, |
| 2714 | unsigned long virt) |
| 2715 | { |
| 2716 | return data->client.sb_phys + (virt - data->client.user_virt_sb_base); |
| 2717 | } |
| 2718 | |
| 2719 | static uintptr_t __qseecom_uvirt_to_kvirt(struct qseecom_dev_handle *data, |
| 2720 | unsigned long virt) |
| 2721 | { |
| 2722 | return (uintptr_t)data->client.sb_virt + |
| 2723 | (virt - data->client.user_virt_sb_base); |
| 2724 | } |
| 2725 | |
| 2726 | int __qseecom_process_rpmb_svc_cmd(struct qseecom_dev_handle *data_ptr, |
| 2727 | struct qseecom_send_svc_cmd_req *req_ptr, |
| 2728 | struct qseecom_client_send_service_ireq *send_svc_ireq_ptr) |
| 2729 | { |
| 2730 | int ret = 0; |
| 2731 | void *req_buf = NULL; |
| 2732 | |
| 2733 | if ((req_ptr == NULL) || (send_svc_ireq_ptr == NULL)) { |
| 2734 | pr_err("Error with pointer: req_ptr = %pK, send_svc_ptr = %pK\n", |
| 2735 | req_ptr, send_svc_ireq_ptr); |
| 2736 | return -EINVAL; |
| 2737 | } |
| 2738 | |
| 2739 | /* Clients need to ensure req_buf is at base offset of shared buffer */ |
| 2740 | if ((uintptr_t)req_ptr->cmd_req_buf != |
| 2741 | data_ptr->client.user_virt_sb_base) { |
| 2742 | pr_err("cmd buf not pointing to base offset of shared buffer\n"); |
| 2743 | return -EINVAL; |
| 2744 | } |
| 2745 | |
| 2746 | if (data_ptr->client.sb_length < |
| 2747 | sizeof(struct qseecom_rpmb_provision_key)) { |
| 2748 | pr_err("shared buffer is too small to hold key type\n"); |
| 2749 | return -EINVAL; |
| 2750 | } |
| 2751 | req_buf = data_ptr->client.sb_virt; |
| 2752 | |
| 2753 | send_svc_ireq_ptr->qsee_cmd_id = req_ptr->cmd_id; |
| 2754 | send_svc_ireq_ptr->key_type = |
| 2755 | ((struct qseecom_rpmb_provision_key *)req_buf)->key_type; |
| 2756 | send_svc_ireq_ptr->req_len = req_ptr->cmd_req_len; |
| 2757 | send_svc_ireq_ptr->rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys( |
| 2758 | data_ptr, (uintptr_t)req_ptr->resp_buf)); |
| 2759 | send_svc_ireq_ptr->rsp_len = req_ptr->resp_len; |
| 2760 | |
| 2761 | return ret; |
| 2762 | } |
| 2763 | |
| 2764 | int __qseecom_process_fsm_key_svc_cmd(struct qseecom_dev_handle *data_ptr, |
| 2765 | struct qseecom_send_svc_cmd_req *req_ptr, |
| 2766 | struct qseecom_client_send_fsm_key_req *send_svc_ireq_ptr) |
| 2767 | { |
| 2768 | int ret = 0; |
| 2769 | uint32_t reqd_len_sb_in = 0; |
| 2770 | |
| 2771 | if ((req_ptr == NULL) || (send_svc_ireq_ptr == NULL)) { |
| 2772 | pr_err("Error with pointer: req_ptr = %pK, send_svc_ptr = %pK\n", |
| 2773 | req_ptr, send_svc_ireq_ptr); |
| 2774 | return -EINVAL; |
| 2775 | } |
| 2776 | |
| 2777 | reqd_len_sb_in = req_ptr->cmd_req_len + req_ptr->resp_len; |
| 2778 | if (reqd_len_sb_in > data_ptr->client.sb_length) { |
| 2779 | pr_err("Not enough memory to fit cmd_buf and resp_buf. "); |
| 2780 | pr_err("Required: %u, Available: %zu\n", |
| 2781 | reqd_len_sb_in, data_ptr->client.sb_length); |
| 2782 | return -ENOMEM; |
| 2783 | } |
| 2784 | |
| 2785 | send_svc_ireq_ptr->qsee_cmd_id = req_ptr->cmd_id; |
| 2786 | send_svc_ireq_ptr->req_len = req_ptr->cmd_req_len; |
| 2787 | send_svc_ireq_ptr->rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys( |
| 2788 | data_ptr, (uintptr_t)req_ptr->resp_buf)); |
| 2789 | send_svc_ireq_ptr->rsp_len = req_ptr->resp_len; |
| 2790 | |
| 2791 | send_svc_ireq_ptr->req_ptr = (uint32_t)(__qseecom_uvirt_to_kphys( |
| 2792 | data_ptr, (uintptr_t)req_ptr->cmd_req_buf)); |
| 2793 | |
| 2794 | |
| 2795 | return ret; |
| 2796 | } |
| 2797 | |
| 2798 | static int __validate_send_service_cmd_inputs(struct qseecom_dev_handle *data, |
| 2799 | struct qseecom_send_svc_cmd_req *req) |
| 2800 | { |
| 2801 | if (!req || !req->resp_buf || !req->cmd_req_buf) { |
| 2802 | pr_err("req or cmd buffer or response buffer is null\n"); |
| 2803 | return -EINVAL; |
| 2804 | } |
| 2805 | |
| 2806 | if (!data || !data->client.ihandle) { |
| 2807 | pr_err("Client or client handle is not initialized\n"); |
| 2808 | return -EINVAL; |
| 2809 | } |
| 2810 | |
| 2811 | if (data->client.sb_virt == NULL) { |
| 2812 | pr_err("sb_virt null\n"); |
| 2813 | return -EINVAL; |
| 2814 | } |
| 2815 | |
| 2816 | if (data->client.user_virt_sb_base == 0) { |
| 2817 | pr_err("user_virt_sb_base is null\n"); |
| 2818 | return -EINVAL; |
| 2819 | } |
| 2820 | |
| 2821 | if (data->client.sb_length == 0) { |
| 2822 | pr_err("sb_length is 0\n"); |
| 2823 | return -EINVAL; |
| 2824 | } |
| 2825 | |
| 2826 | if (((uintptr_t)req->cmd_req_buf < |
| 2827 | data->client.user_virt_sb_base) || |
| 2828 | ((uintptr_t)req->cmd_req_buf >= |
| 2829 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 2830 | pr_err("cmd buffer address not within shared bufffer\n"); |
| 2831 | return -EINVAL; |
| 2832 | } |
| 2833 | if (((uintptr_t)req->resp_buf < |
| 2834 | data->client.user_virt_sb_base) || |
| 2835 | ((uintptr_t)req->resp_buf >= |
| 2836 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 2837 | pr_err("response buffer address not within shared bufffer\n"); |
| 2838 | return -EINVAL; |
| 2839 | } |
| 2840 | if ((req->cmd_req_len == 0) || (req->resp_len == 0) || |
| 2841 | (req->cmd_req_len > data->client.sb_length) || |
| 2842 | (req->resp_len > data->client.sb_length)) { |
| 2843 | pr_err("cmd buf length or response buf length not valid\n"); |
| 2844 | return -EINVAL; |
| 2845 | } |
| 2846 | if (req->cmd_req_len > UINT_MAX - req->resp_len) { |
| 2847 | pr_err("Integer overflow detected in req_len & rsp_len\n"); |
| 2848 | return -EINVAL; |
| 2849 | } |
| 2850 | |
| 2851 | if ((req->cmd_req_len + req->resp_len) > data->client.sb_length) { |
| 2852 | pr_debug("Not enough memory to fit cmd_buf.\n"); |
| 2853 | pr_debug("resp_buf. Required: %u, Available: %zu\n", |
| 2854 | (req->cmd_req_len + req->resp_len), |
| 2855 | data->client.sb_length); |
| 2856 | return -ENOMEM; |
| 2857 | } |
| 2858 | if ((uintptr_t)req->cmd_req_buf > (ULONG_MAX - req->cmd_req_len)) { |
| 2859 | pr_err("Integer overflow in req_len & cmd_req_buf\n"); |
| 2860 | return -EINVAL; |
| 2861 | } |
| 2862 | if ((uintptr_t)req->resp_buf > (ULONG_MAX - req->resp_len)) { |
| 2863 | pr_err("Integer overflow in resp_len & resp_buf\n"); |
| 2864 | return -EINVAL; |
| 2865 | } |
| 2866 | if (data->client.user_virt_sb_base > |
| 2867 | (ULONG_MAX - data->client.sb_length)) { |
| 2868 | pr_err("Integer overflow in user_virt_sb_base & sb_length\n"); |
| 2869 | return -EINVAL; |
| 2870 | } |
| 2871 | if ((((uintptr_t)req->cmd_req_buf + req->cmd_req_len) > |
| 2872 | ((uintptr_t)data->client.user_virt_sb_base + |
| 2873 | data->client.sb_length)) || |
| 2874 | (((uintptr_t)req->resp_buf + req->resp_len) > |
| 2875 | ((uintptr_t)data->client.user_virt_sb_base + |
| 2876 | data->client.sb_length))) { |
| 2877 | pr_err("cmd buf or resp buf is out of shared buffer region\n"); |
| 2878 | return -EINVAL; |
| 2879 | } |
| 2880 | return 0; |
| 2881 | } |
| 2882 | |
| 2883 | static int qseecom_send_service_cmd(struct qseecom_dev_handle *data, |
| 2884 | void __user *argp) |
| 2885 | { |
| 2886 | int ret = 0; |
| 2887 | struct qseecom_client_send_service_ireq send_svc_ireq; |
| 2888 | struct qseecom_client_send_fsm_key_req send_fsm_key_svc_ireq; |
| 2889 | struct qseecom_command_scm_resp resp; |
| 2890 | struct qseecom_send_svc_cmd_req req; |
| 2891 | void *send_req_ptr; |
| 2892 | size_t req_buf_size; |
| 2893 | |
| 2894 | /*struct qseecom_command_scm_resp resp;*/ |
| 2895 | |
| 2896 | if (copy_from_user(&req, |
| 2897 | (void __user *)argp, |
| 2898 | sizeof(req))) { |
| 2899 | pr_err("copy_from_user failed\n"); |
| 2900 | return -EFAULT; |
| 2901 | } |
| 2902 | |
| 2903 | if (__validate_send_service_cmd_inputs(data, &req)) |
| 2904 | return -EINVAL; |
| 2905 | |
| 2906 | data->type = QSEECOM_SECURE_SERVICE; |
| 2907 | |
| 2908 | switch (req.cmd_id) { |
| 2909 | case QSEOS_RPMB_PROVISION_KEY_COMMAND: |
| 2910 | case QSEOS_RPMB_ERASE_COMMAND: |
| 2911 | case QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND: |
| 2912 | send_req_ptr = &send_svc_ireq; |
| 2913 | req_buf_size = sizeof(send_svc_ireq); |
| 2914 | if (__qseecom_process_rpmb_svc_cmd(data, &req, |
| 2915 | send_req_ptr)) |
| 2916 | return -EINVAL; |
| 2917 | break; |
| 2918 | case QSEOS_FSM_LTEOTA_REQ_CMD: |
| 2919 | case QSEOS_FSM_LTEOTA_REQ_RSP_CMD: |
| 2920 | case QSEOS_FSM_IKE_REQ_CMD: |
| 2921 | case QSEOS_FSM_IKE_REQ_RSP_CMD: |
| 2922 | case QSEOS_FSM_OEM_FUSE_WRITE_ROW: |
| 2923 | case QSEOS_FSM_OEM_FUSE_READ_ROW: |
| 2924 | case QSEOS_FSM_ENCFS_REQ_CMD: |
| 2925 | case QSEOS_FSM_ENCFS_REQ_RSP_CMD: |
| 2926 | send_req_ptr = &send_fsm_key_svc_ireq; |
| 2927 | req_buf_size = sizeof(send_fsm_key_svc_ireq); |
| 2928 | if (__qseecom_process_fsm_key_svc_cmd(data, &req, |
| 2929 | send_req_ptr)) |
| 2930 | return -EINVAL; |
| 2931 | break; |
| 2932 | default: |
| 2933 | pr_err("Unsupported cmd_id %d\n", req.cmd_id); |
| 2934 | return -EINVAL; |
| 2935 | } |
| 2936 | |
| 2937 | if (qseecom.support_bus_scaling) { |
| 2938 | ret = qseecom_scale_bus_bandwidth_timer(HIGH); |
| 2939 | if (ret) { |
| 2940 | pr_err("Fail to set bw HIGH\n"); |
| 2941 | return ret; |
| 2942 | } |
| 2943 | } else { |
| 2944 | ret = qseecom_perf_enable(data); |
| 2945 | if (ret) { |
| 2946 | pr_err("Failed to vote for clocks with err %d\n", ret); |
| 2947 | goto exit; |
| 2948 | } |
| 2949 | } |
| 2950 | |
| 2951 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 2952 | data->client.sb_virt, data->client.sb_length, |
| 2953 | ION_IOC_CLEAN_INV_CACHES); |
| 2954 | if (ret) { |
| 2955 | pr_err("cache operation failed %d\n", ret); |
| 2956 | goto exit; |
| 2957 | } |
| 2958 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 2959 | (const void *)send_req_ptr, |
| 2960 | req_buf_size, &resp, sizeof(resp)); |
| 2961 | if (ret) { |
| 2962 | pr_err("qseecom_scm_call failed with err: %d\n", ret); |
| 2963 | if (!qseecom.support_bus_scaling) { |
| 2964 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 2965 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 2966 | } else { |
| 2967 | __qseecom_add_bw_scale_down_timer( |
| 2968 | QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 2969 | } |
| 2970 | goto exit; |
| 2971 | } |
| 2972 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 2973 | data->client.sb_virt, data->client.sb_length, |
| 2974 | ION_IOC_INV_CACHES); |
| 2975 | if (ret) { |
| 2976 | pr_err("cache operation failed %d\n", ret); |
| 2977 | goto exit; |
| 2978 | } |
| 2979 | switch (resp.result) { |
| 2980 | case QSEOS_RESULT_SUCCESS: |
| 2981 | break; |
| 2982 | case QSEOS_RESULT_INCOMPLETE: |
| 2983 | pr_debug("qseos_result_incomplete\n"); |
| 2984 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 2985 | if (ret) { |
| 2986 | pr_err("process_incomplete_cmd fail with result: %d\n", |
| 2987 | resp.result); |
| 2988 | } |
| 2989 | if (req.cmd_id == QSEOS_RPMB_CHECK_PROV_STATUS_COMMAND) { |
| 2990 | pr_warn("RPMB key status is 0x%x\n", resp.result); |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 2991 | if (put_user(resp.result, |
| 2992 | (uint32_t __user *)req.resp_buf)) { |
| 2993 | ret = -EINVAL; |
| 2994 | goto exit; |
| 2995 | } |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 2996 | ret = 0; |
| 2997 | } |
| 2998 | break; |
| 2999 | case QSEOS_RESULT_FAILURE: |
| 3000 | pr_err("scm call failed with resp.result: %d\n", resp.result); |
| 3001 | ret = -EINVAL; |
| 3002 | break; |
| 3003 | default: |
| 3004 | pr_err("Response result %d not supported\n", |
| 3005 | resp.result); |
| 3006 | ret = -EINVAL; |
| 3007 | break; |
| 3008 | } |
| 3009 | if (!qseecom.support_bus_scaling) { |
| 3010 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 3011 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 3012 | } else { |
| 3013 | __qseecom_add_bw_scale_down_timer( |
| 3014 | QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 3015 | } |
| 3016 | |
| 3017 | exit: |
| 3018 | return ret; |
| 3019 | } |
| 3020 | |
| 3021 | static int __validate_send_cmd_inputs(struct qseecom_dev_handle *data, |
| 3022 | struct qseecom_send_cmd_req *req) |
| 3023 | |
| 3024 | { |
| 3025 | if (!data || !data->client.ihandle) { |
| 3026 | pr_err("Client or client handle is not initialized\n"); |
| 3027 | return -EINVAL; |
| 3028 | } |
| 3029 | if (((req->resp_buf == NULL) && (req->resp_len != 0)) || |
| 3030 | (req->cmd_req_buf == NULL)) { |
| 3031 | pr_err("cmd buffer or response buffer is null\n"); |
| 3032 | return -EINVAL; |
| 3033 | } |
| 3034 | if (((uintptr_t)req->cmd_req_buf < |
| 3035 | data->client.user_virt_sb_base) || |
| 3036 | ((uintptr_t)req->cmd_req_buf >= |
| 3037 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 3038 | pr_err("cmd buffer address not within shared bufffer\n"); |
| 3039 | return -EINVAL; |
| 3040 | } |
| 3041 | if (((uintptr_t)req->resp_buf < |
| 3042 | data->client.user_virt_sb_base) || |
| 3043 | ((uintptr_t)req->resp_buf >= |
| 3044 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 3045 | pr_err("response buffer address not within shared bufffer\n"); |
| 3046 | return -EINVAL; |
| 3047 | } |
| 3048 | if ((req->cmd_req_len == 0) || |
| 3049 | (req->cmd_req_len > data->client.sb_length) || |
| 3050 | (req->resp_len > data->client.sb_length)) { |
| 3051 | pr_err("cmd buf length or response buf length not valid\n"); |
| 3052 | return -EINVAL; |
| 3053 | } |
| 3054 | if (req->cmd_req_len > UINT_MAX - req->resp_len) { |
| 3055 | pr_err("Integer overflow detected in req_len & rsp_len\n"); |
| 3056 | return -EINVAL; |
| 3057 | } |
| 3058 | |
| 3059 | if ((req->cmd_req_len + req->resp_len) > data->client.sb_length) { |
| 3060 | pr_debug("Not enough memory to fit cmd_buf.\n"); |
| 3061 | pr_debug("resp_buf. Required: %u, Available: %zu\n", |
| 3062 | (req->cmd_req_len + req->resp_len), |
| 3063 | data->client.sb_length); |
| 3064 | return -ENOMEM; |
| 3065 | } |
| 3066 | if ((uintptr_t)req->cmd_req_buf > (ULONG_MAX - req->cmd_req_len)) { |
| 3067 | pr_err("Integer overflow in req_len & cmd_req_buf\n"); |
| 3068 | return -EINVAL; |
| 3069 | } |
| 3070 | if ((uintptr_t)req->resp_buf > (ULONG_MAX - req->resp_len)) { |
| 3071 | pr_err("Integer overflow in resp_len & resp_buf\n"); |
| 3072 | return -EINVAL; |
| 3073 | } |
| 3074 | if (data->client.user_virt_sb_base > |
| 3075 | (ULONG_MAX - data->client.sb_length)) { |
| 3076 | pr_err("Integer overflow in user_virt_sb_base & sb_length\n"); |
| 3077 | return -EINVAL; |
| 3078 | } |
| 3079 | if ((((uintptr_t)req->cmd_req_buf + req->cmd_req_len) > |
| 3080 | ((uintptr_t)data->client.user_virt_sb_base + |
| 3081 | data->client.sb_length)) || |
| 3082 | (((uintptr_t)req->resp_buf + req->resp_len) > |
| 3083 | ((uintptr_t)data->client.user_virt_sb_base + |
| 3084 | data->client.sb_length))) { |
| 3085 | pr_err("cmd buf or resp buf is out of shared buffer region\n"); |
| 3086 | return -EINVAL; |
| 3087 | } |
| 3088 | return 0; |
| 3089 | } |
| 3090 | |
| 3091 | int __qseecom_process_reentrancy(struct qseecom_command_scm_resp *resp, |
| 3092 | struct qseecom_registered_app_list *ptr_app, |
| 3093 | struct qseecom_dev_handle *data) |
| 3094 | { |
| 3095 | int ret = 0; |
| 3096 | |
| 3097 | switch (resp->result) { |
| 3098 | case QSEOS_RESULT_BLOCKED_ON_LISTENER: |
| 3099 | pr_warn("App(%d) %s is blocked on listener %d\n", |
| 3100 | data->client.app_id, data->client.app_name, |
| 3101 | resp->data); |
| 3102 | ret = __qseecom_process_reentrancy_blocked_on_listener( |
| 3103 | resp, ptr_app, data); |
| 3104 | if (ret) { |
| 3105 | pr_err("failed to process App(%d) %s is blocked on listener %d\n", |
| 3106 | data->client.app_id, data->client.app_name, resp->data); |
| 3107 | return ret; |
| 3108 | } |
| 3109 | |
| 3110 | case QSEOS_RESULT_INCOMPLETE: |
| 3111 | qseecom.app_block_ref_cnt++; |
| 3112 | ptr_app->app_blocked = true; |
| 3113 | ret = __qseecom_reentrancy_process_incomplete_cmd(data, resp); |
| 3114 | ptr_app->app_blocked = false; |
| 3115 | qseecom.app_block_ref_cnt--; |
| 3116 | wake_up_interruptible(&qseecom.app_block_wq); |
| 3117 | if (ret) |
| 3118 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 3119 | ret); |
| 3120 | return ret; |
| 3121 | case QSEOS_RESULT_SUCCESS: |
| 3122 | return ret; |
| 3123 | default: |
| 3124 | pr_err("Response result %d not supported\n", |
| 3125 | resp->result); |
| 3126 | return -EINVAL; |
| 3127 | } |
| 3128 | } |
| 3129 | |
| 3130 | static int __qseecom_send_cmd(struct qseecom_dev_handle *data, |
| 3131 | struct qseecom_send_cmd_req *req) |
| 3132 | { |
| 3133 | int ret = 0; |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3134 | int ret2 = 0; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3135 | u32 reqd_len_sb_in = 0; |
| 3136 | struct qseecom_client_send_data_ireq send_data_req = {0}; |
| 3137 | struct qseecom_client_send_data_64bit_ireq send_data_req_64bit = {0}; |
| 3138 | struct qseecom_command_scm_resp resp; |
| 3139 | unsigned long flags; |
| 3140 | struct qseecom_registered_app_list *ptr_app; |
| 3141 | bool found_app = false; |
| 3142 | void *cmd_buf = NULL; |
| 3143 | size_t cmd_len; |
| 3144 | struct sglist_info *table = data->sglistinfo_ptr; |
| 3145 | |
| 3146 | reqd_len_sb_in = req->cmd_req_len + req->resp_len; |
| 3147 | /* find app_id & img_name from list */ |
| 3148 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 3149 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 3150 | list) { |
| 3151 | if ((ptr_app->app_id == data->client.app_id) && |
| 3152 | (!strcmp(ptr_app->app_name, data->client.app_name))) { |
| 3153 | found_app = true; |
| 3154 | break; |
| 3155 | } |
| 3156 | } |
| 3157 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags); |
| 3158 | |
| 3159 | if (!found_app) { |
| 3160 | pr_err("app_id %d (%s) is not found\n", data->client.app_id, |
| 3161 | (char *)data->client.app_name); |
| 3162 | return -ENOENT; |
| 3163 | } |
| 3164 | |
| 3165 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 3166 | send_data_req.app_id = data->client.app_id; |
| 3167 | send_data_req.req_ptr = (uint32_t)(__qseecom_uvirt_to_kphys( |
| 3168 | data, (uintptr_t)req->cmd_req_buf)); |
| 3169 | send_data_req.req_len = req->cmd_req_len; |
| 3170 | send_data_req.rsp_ptr = (uint32_t)(__qseecom_uvirt_to_kphys( |
| 3171 | data, (uintptr_t)req->resp_buf)); |
| 3172 | send_data_req.rsp_len = req->resp_len; |
| 3173 | send_data_req.sglistinfo_ptr = |
| 3174 | (uint32_t)virt_to_phys(table); |
| 3175 | send_data_req.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 3176 | dmac_flush_range((void *)table, |
| 3177 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 3178 | cmd_buf = (void *)&send_data_req; |
| 3179 | cmd_len = sizeof(struct qseecom_client_send_data_ireq); |
| 3180 | } else { |
| 3181 | send_data_req_64bit.app_id = data->client.app_id; |
| 3182 | send_data_req_64bit.req_ptr = __qseecom_uvirt_to_kphys(data, |
| 3183 | (uintptr_t)req->cmd_req_buf); |
| 3184 | send_data_req_64bit.req_len = req->cmd_req_len; |
| 3185 | send_data_req_64bit.rsp_ptr = __qseecom_uvirt_to_kphys(data, |
| 3186 | (uintptr_t)req->resp_buf); |
| 3187 | send_data_req_64bit.rsp_len = req->resp_len; |
| 3188 | /* check if 32bit app's phys_addr region is under 4GB.*/ |
| 3189 | if ((data->client.app_arch == ELFCLASS32) && |
| 3190 | ((send_data_req_64bit.req_ptr >= |
| 3191 | PHY_ADDR_4G - send_data_req_64bit.req_len) || |
| 3192 | (send_data_req_64bit.rsp_ptr >= |
| 3193 | PHY_ADDR_4G - send_data_req_64bit.rsp_len))){ |
| 3194 | pr_err("32bit app %s PA exceeds 4G: req_ptr=%llx, req_len=%x, rsp_ptr=%llx, rsp_len=%x\n", |
| 3195 | data->client.app_name, |
| 3196 | send_data_req_64bit.req_ptr, |
| 3197 | send_data_req_64bit.req_len, |
| 3198 | send_data_req_64bit.rsp_ptr, |
| 3199 | send_data_req_64bit.rsp_len); |
| 3200 | return -EFAULT; |
| 3201 | } |
| 3202 | send_data_req_64bit.sglistinfo_ptr = |
| 3203 | (uint64_t)virt_to_phys(table); |
| 3204 | send_data_req_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 3205 | dmac_flush_range((void *)table, |
| 3206 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 3207 | cmd_buf = (void *)&send_data_req_64bit; |
| 3208 | cmd_len = sizeof(struct qseecom_client_send_data_64bit_ireq); |
| 3209 | } |
| 3210 | |
| 3211 | if (qseecom.whitelist_support == false || data->use_legacy_cmd == true) |
| 3212 | *(uint32_t *)cmd_buf = QSEOS_CLIENT_SEND_DATA_COMMAND; |
| 3213 | else |
| 3214 | *(uint32_t *)cmd_buf = QSEOS_CLIENT_SEND_DATA_COMMAND_WHITELIST; |
| 3215 | |
| 3216 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 3217 | data->client.sb_virt, |
| 3218 | reqd_len_sb_in, |
| 3219 | ION_IOC_CLEAN_INV_CACHES); |
| 3220 | if (ret) { |
| 3221 | pr_err("cache operation failed %d\n", ret); |
| 3222 | return ret; |
| 3223 | } |
| 3224 | |
| 3225 | __qseecom_reentrancy_check_if_this_app_blocked(ptr_app); |
| 3226 | |
| 3227 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 3228 | cmd_buf, cmd_len, |
| 3229 | &resp, sizeof(resp)); |
| 3230 | if (ret) { |
| 3231 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 3232 | ret, data->client.app_id); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3233 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3234 | } |
| 3235 | |
| 3236 | if (qseecom.qsee_reentrancy_support) { |
| 3237 | ret = __qseecom_process_reentrancy(&resp, ptr_app, data); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3238 | if (ret) |
| 3239 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3240 | } else { |
| 3241 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 3242 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 3243 | if (ret) { |
| 3244 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 3245 | ret); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3246 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3247 | } |
| 3248 | } else { |
| 3249 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 3250 | pr_err("Response result %d not supported\n", |
| 3251 | resp.result); |
| 3252 | ret = -EINVAL; |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3253 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3254 | } |
| 3255 | } |
| 3256 | } |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3257 | exit: |
| 3258 | ret2 = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3259 | data->client.sb_virt, data->client.sb_length, |
| 3260 | ION_IOC_INV_CACHES); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 3261 | if (ret2) { |
| 3262 | pr_err("cache operation failed %d\n", ret2); |
| 3263 | return ret2; |
| 3264 | } |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3265 | return ret; |
| 3266 | } |
| 3267 | |
| 3268 | static int qseecom_send_cmd(struct qseecom_dev_handle *data, void __user *argp) |
| 3269 | { |
| 3270 | int ret = 0; |
| 3271 | struct qseecom_send_cmd_req req; |
| 3272 | |
| 3273 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 3274 | if (ret) { |
| 3275 | pr_err("copy_from_user failed\n"); |
| 3276 | return ret; |
| 3277 | } |
| 3278 | |
| 3279 | if (__validate_send_cmd_inputs(data, &req)) |
| 3280 | return -EINVAL; |
| 3281 | |
| 3282 | ret = __qseecom_send_cmd(data, &req); |
| 3283 | |
| 3284 | if (ret) |
| 3285 | return ret; |
| 3286 | |
| 3287 | return ret; |
| 3288 | } |
| 3289 | |
| 3290 | int __boundary_checks_offset(struct qseecom_send_modfd_cmd_req *req, |
| 3291 | struct qseecom_send_modfd_listener_resp *lstnr_resp, |
| 3292 | struct qseecom_dev_handle *data, int i) { |
| 3293 | |
| 3294 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3295 | (req->ifd_data[i].fd > 0)) { |
| 3296 | if ((req->cmd_req_len < sizeof(uint32_t)) || |
| 3297 | (req->ifd_data[i].cmd_buf_offset > |
| 3298 | req->cmd_req_len - sizeof(uint32_t))) { |
| 3299 | pr_err("Invalid offset (req len) 0x%x\n", |
| 3300 | req->ifd_data[i].cmd_buf_offset); |
| 3301 | return -EINVAL; |
| 3302 | } |
| 3303 | } else if ((data->type == QSEECOM_LISTENER_SERVICE) && |
| 3304 | (lstnr_resp->ifd_data[i].fd > 0)) { |
| 3305 | if ((lstnr_resp->resp_len < sizeof(uint32_t)) || |
| 3306 | (lstnr_resp->ifd_data[i].cmd_buf_offset > |
| 3307 | lstnr_resp->resp_len - sizeof(uint32_t))) { |
| 3308 | pr_err("Invalid offset (lstnr resp len) 0x%x\n", |
| 3309 | lstnr_resp->ifd_data[i].cmd_buf_offset); |
| 3310 | return -EINVAL; |
| 3311 | } |
| 3312 | } |
| 3313 | return 0; |
| 3314 | } |
| 3315 | |
| 3316 | static int __qseecom_update_cmd_buf(void *msg, bool cleanup, |
| 3317 | struct qseecom_dev_handle *data) |
| 3318 | { |
| 3319 | struct ion_handle *ihandle; |
| 3320 | char *field; |
| 3321 | int ret = 0; |
| 3322 | int i = 0; |
| 3323 | uint32_t len = 0; |
| 3324 | struct scatterlist *sg; |
| 3325 | struct qseecom_send_modfd_cmd_req *req = NULL; |
| 3326 | struct qseecom_send_modfd_listener_resp *lstnr_resp = NULL; |
| 3327 | struct qseecom_registered_listener_list *this_lstnr = NULL; |
| 3328 | uint32_t offset; |
| 3329 | struct sg_table *sg_ptr; |
| 3330 | |
| 3331 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3332 | (data->type != QSEECOM_CLIENT_APP)) |
| 3333 | return -EFAULT; |
| 3334 | |
| 3335 | if (msg == NULL) { |
| 3336 | pr_err("Invalid address\n"); |
| 3337 | return -EINVAL; |
| 3338 | } |
| 3339 | if (data->type == QSEECOM_LISTENER_SERVICE) { |
| 3340 | lstnr_resp = (struct qseecom_send_modfd_listener_resp *)msg; |
| 3341 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 3342 | if (IS_ERR_OR_NULL(this_lstnr)) { |
| 3343 | pr_err("Invalid listener ID\n"); |
| 3344 | return -ENOMEM; |
| 3345 | } |
| 3346 | } else { |
| 3347 | req = (struct qseecom_send_modfd_cmd_req *)msg; |
| 3348 | } |
| 3349 | |
| 3350 | for (i = 0; i < MAX_ION_FD; i++) { |
| 3351 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3352 | (req->ifd_data[i].fd > 0)) { |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 3353 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3354 | req->ifd_data[i].fd); |
| 3355 | if (IS_ERR_OR_NULL(ihandle)) { |
| 3356 | pr_err("Ion client can't retrieve the handle\n"); |
| 3357 | return -ENOMEM; |
| 3358 | } |
| 3359 | field = (char *) req->cmd_req_buf + |
| 3360 | req->ifd_data[i].cmd_buf_offset; |
| 3361 | } else if ((data->type == QSEECOM_LISTENER_SERVICE) && |
| 3362 | (lstnr_resp->ifd_data[i].fd > 0)) { |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 3363 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3364 | lstnr_resp->ifd_data[i].fd); |
| 3365 | if (IS_ERR_OR_NULL(ihandle)) { |
| 3366 | pr_err("Ion client can't retrieve the handle\n"); |
| 3367 | return -ENOMEM; |
| 3368 | } |
| 3369 | field = lstnr_resp->resp_buf_ptr + |
| 3370 | lstnr_resp->ifd_data[i].cmd_buf_offset; |
| 3371 | } else { |
| 3372 | continue; |
| 3373 | } |
| 3374 | /* Populate the cmd data structure with the phys_addr */ |
| 3375 | sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle); |
| 3376 | if (IS_ERR_OR_NULL(sg_ptr)) { |
| 3377 | pr_err("IOn client could not retrieve sg table\n"); |
| 3378 | goto err; |
| 3379 | } |
| 3380 | if (sg_ptr->nents == 0) { |
| 3381 | pr_err("Num of scattered entries is 0\n"); |
| 3382 | goto err; |
| 3383 | } |
| 3384 | if (sg_ptr->nents > QSEECOM_MAX_SG_ENTRY) { |
| 3385 | pr_err("Num of scattered entries"); |
| 3386 | pr_err(" (%d) is greater than max supported %d\n", |
| 3387 | sg_ptr->nents, QSEECOM_MAX_SG_ENTRY); |
| 3388 | goto err; |
| 3389 | } |
| 3390 | sg = sg_ptr->sgl; |
| 3391 | if (sg_ptr->nents == 1) { |
| 3392 | uint32_t *update; |
| 3393 | |
| 3394 | if (__boundary_checks_offset(req, lstnr_resp, data, i)) |
| 3395 | goto err; |
| 3396 | if ((data->type == QSEECOM_CLIENT_APP && |
| 3397 | (data->client.app_arch == ELFCLASS32 || |
| 3398 | data->client.app_arch == ELFCLASS64)) || |
| 3399 | (data->type == QSEECOM_LISTENER_SERVICE)) { |
| 3400 | /* |
| 3401 | * Check if sg list phy add region is under 4GB |
| 3402 | */ |
| 3403 | if ((qseecom.qsee_version >= QSEE_VERSION_40) && |
| 3404 | (!cleanup) && |
| 3405 | ((uint64_t)sg_dma_address(sg_ptr->sgl) |
| 3406 | >= PHY_ADDR_4G - sg->length)) { |
| 3407 | pr_err("App %s sgl PA exceeds 4G: phy_addr=%pKad, len=%x\n", |
| 3408 | data->client.app_name, |
| 3409 | &(sg_dma_address(sg_ptr->sgl)), |
| 3410 | sg->length); |
| 3411 | goto err; |
| 3412 | } |
| 3413 | update = (uint32_t *) field; |
| 3414 | *update = cleanup ? 0 : |
| 3415 | (uint32_t)sg_dma_address(sg_ptr->sgl); |
| 3416 | } else { |
| 3417 | pr_err("QSEE app arch %u is not supported\n", |
| 3418 | data->client.app_arch); |
| 3419 | goto err; |
| 3420 | } |
| 3421 | len += (uint32_t)sg->length; |
| 3422 | } else { |
| 3423 | struct qseecom_sg_entry *update; |
| 3424 | int j = 0; |
| 3425 | |
| 3426 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3427 | (req->ifd_data[i].fd > 0)) { |
| 3428 | |
| 3429 | if ((req->cmd_req_len < |
| 3430 | SG_ENTRY_SZ * sg_ptr->nents) || |
| 3431 | (req->ifd_data[i].cmd_buf_offset > |
| 3432 | (req->cmd_req_len - |
| 3433 | SG_ENTRY_SZ * sg_ptr->nents))) { |
| 3434 | pr_err("Invalid offset = 0x%x\n", |
| 3435 | req->ifd_data[i].cmd_buf_offset); |
| 3436 | goto err; |
| 3437 | } |
| 3438 | |
| 3439 | } else if ((data->type == QSEECOM_LISTENER_SERVICE) && |
| 3440 | (lstnr_resp->ifd_data[i].fd > 0)) { |
| 3441 | |
| 3442 | if ((lstnr_resp->resp_len < |
| 3443 | SG_ENTRY_SZ * sg_ptr->nents) || |
| 3444 | (lstnr_resp->ifd_data[i].cmd_buf_offset > |
| 3445 | (lstnr_resp->resp_len - |
| 3446 | SG_ENTRY_SZ * sg_ptr->nents))) { |
| 3447 | goto err; |
| 3448 | } |
| 3449 | } |
| 3450 | if ((data->type == QSEECOM_CLIENT_APP && |
| 3451 | (data->client.app_arch == ELFCLASS32 || |
| 3452 | data->client.app_arch == ELFCLASS64)) || |
| 3453 | (data->type == QSEECOM_LISTENER_SERVICE)) { |
| 3454 | update = (struct qseecom_sg_entry *)field; |
| 3455 | for (j = 0; j < sg_ptr->nents; j++) { |
| 3456 | /* |
| 3457 | * Check if sg list PA is under 4GB |
| 3458 | */ |
| 3459 | if ((qseecom.qsee_version >= |
| 3460 | QSEE_VERSION_40) && |
| 3461 | (!cleanup) && |
| 3462 | ((uint64_t)(sg_dma_address(sg)) |
| 3463 | >= PHY_ADDR_4G - sg->length)) { |
| 3464 | pr_err("App %s sgl PA exceeds 4G: phy_addr=%pKad, len=%x\n", |
| 3465 | data->client.app_name, |
| 3466 | &(sg_dma_address(sg)), |
| 3467 | sg->length); |
| 3468 | goto err; |
| 3469 | } |
| 3470 | update->phys_addr = cleanup ? 0 : |
| 3471 | (uint32_t)sg_dma_address(sg); |
| 3472 | update->len = cleanup ? 0 : sg->length; |
| 3473 | update++; |
| 3474 | len += sg->length; |
| 3475 | sg = sg_next(sg); |
| 3476 | } |
| 3477 | } else { |
| 3478 | pr_err("QSEE app arch %u is not supported\n", |
| 3479 | data->client.app_arch); |
| 3480 | goto err; |
| 3481 | } |
| 3482 | } |
| 3483 | |
| 3484 | if (cleanup) { |
| 3485 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 3486 | ihandle, NULL, len, |
| 3487 | ION_IOC_INV_CACHES); |
| 3488 | if (ret) { |
| 3489 | pr_err("cache operation failed %d\n", ret); |
| 3490 | goto err; |
| 3491 | } |
| 3492 | } else { |
| 3493 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 3494 | ihandle, NULL, len, |
| 3495 | ION_IOC_CLEAN_INV_CACHES); |
| 3496 | if (ret) { |
| 3497 | pr_err("cache operation failed %d\n", ret); |
| 3498 | goto err; |
| 3499 | } |
| 3500 | if (data->type == QSEECOM_CLIENT_APP) { |
| 3501 | offset = req->ifd_data[i].cmd_buf_offset; |
| 3502 | data->sglistinfo_ptr[i].indexAndFlags = |
| 3503 | SGLISTINFO_SET_INDEX_FLAG( |
| 3504 | (sg_ptr->nents == 1), 0, offset); |
| 3505 | data->sglistinfo_ptr[i].sizeOrCount = |
| 3506 | (sg_ptr->nents == 1) ? |
| 3507 | sg->length : sg_ptr->nents; |
| 3508 | data->sglist_cnt = i + 1; |
| 3509 | } else { |
| 3510 | offset = (lstnr_resp->ifd_data[i].cmd_buf_offset |
| 3511 | + (uintptr_t)lstnr_resp->resp_buf_ptr - |
| 3512 | (uintptr_t)this_lstnr->sb_virt); |
| 3513 | this_lstnr->sglistinfo_ptr[i].indexAndFlags = |
| 3514 | SGLISTINFO_SET_INDEX_FLAG( |
| 3515 | (sg_ptr->nents == 1), 0, offset); |
| 3516 | this_lstnr->sglistinfo_ptr[i].sizeOrCount = |
| 3517 | (sg_ptr->nents == 1) ? |
| 3518 | sg->length : sg_ptr->nents; |
| 3519 | this_lstnr->sglist_cnt = i + 1; |
| 3520 | } |
| 3521 | } |
| 3522 | /* Deallocate the handle */ |
| 3523 | if (!IS_ERR_OR_NULL(ihandle)) |
| 3524 | ion_free(qseecom.ion_clnt, ihandle); |
| 3525 | } |
| 3526 | return ret; |
| 3527 | err: |
| 3528 | if (!IS_ERR_OR_NULL(ihandle)) |
| 3529 | ion_free(qseecom.ion_clnt, ihandle); |
| 3530 | return -ENOMEM; |
| 3531 | } |
| 3532 | |
| 3533 | static int __qseecom_allocate_sg_list_buffer(struct qseecom_dev_handle *data, |
| 3534 | char *field, uint32_t fd_idx, struct sg_table *sg_ptr) |
| 3535 | { |
| 3536 | struct scatterlist *sg = sg_ptr->sgl; |
| 3537 | struct qseecom_sg_entry_64bit *sg_entry; |
| 3538 | struct qseecom_sg_list_buf_hdr_64bit *buf_hdr; |
| 3539 | void *buf; |
| 3540 | uint i; |
| 3541 | size_t size; |
| 3542 | dma_addr_t coh_pmem; |
| 3543 | |
| 3544 | if (fd_idx >= MAX_ION_FD) { |
| 3545 | pr_err("fd_idx [%d] is invalid\n", fd_idx); |
| 3546 | return -ENOMEM; |
| 3547 | } |
| 3548 | buf_hdr = (struct qseecom_sg_list_buf_hdr_64bit *)field; |
| 3549 | memset((void *)buf_hdr, 0, QSEECOM_SG_LIST_BUF_HDR_SZ_64BIT); |
| 3550 | /* Allocate a contiguous kernel buffer */ |
| 3551 | size = sg_ptr->nents * SG_ENTRY_SZ_64BIT; |
| 3552 | size = (size + PAGE_SIZE) & PAGE_MASK; |
| 3553 | buf = dma_alloc_coherent(qseecom.pdev, |
| 3554 | size, &coh_pmem, GFP_KERNEL); |
| 3555 | if (buf == NULL) { |
| 3556 | pr_err("failed to alloc memory for sg buf\n"); |
| 3557 | return -ENOMEM; |
| 3558 | } |
| 3559 | /* update qseecom_sg_list_buf_hdr_64bit */ |
| 3560 | buf_hdr->version = QSEECOM_SG_LIST_BUF_FORMAT_VERSION_2; |
| 3561 | buf_hdr->new_buf_phys_addr = coh_pmem; |
| 3562 | buf_hdr->nents_total = sg_ptr->nents; |
| 3563 | /* save the left sg entries into new allocated buf */ |
| 3564 | sg_entry = (struct qseecom_sg_entry_64bit *)buf; |
| 3565 | for (i = 0; i < sg_ptr->nents; i++) { |
| 3566 | sg_entry->phys_addr = (uint64_t)sg_dma_address(sg); |
| 3567 | sg_entry->len = sg->length; |
| 3568 | sg_entry++; |
| 3569 | sg = sg_next(sg); |
| 3570 | } |
| 3571 | |
| 3572 | data->client.sec_buf_fd[fd_idx].is_sec_buf_fd = true; |
| 3573 | data->client.sec_buf_fd[fd_idx].vbase = buf; |
| 3574 | data->client.sec_buf_fd[fd_idx].pbase = coh_pmem; |
| 3575 | data->client.sec_buf_fd[fd_idx].size = size; |
| 3576 | |
| 3577 | return 0; |
| 3578 | } |
| 3579 | |
| 3580 | static int __qseecom_update_cmd_buf_64(void *msg, bool cleanup, |
| 3581 | struct qseecom_dev_handle *data) |
| 3582 | { |
| 3583 | struct ion_handle *ihandle; |
| 3584 | char *field; |
| 3585 | int ret = 0; |
| 3586 | int i = 0; |
| 3587 | uint32_t len = 0; |
| 3588 | struct scatterlist *sg; |
| 3589 | struct qseecom_send_modfd_cmd_req *req = NULL; |
| 3590 | struct qseecom_send_modfd_listener_resp *lstnr_resp = NULL; |
| 3591 | struct qseecom_registered_listener_list *this_lstnr = NULL; |
| 3592 | uint32_t offset; |
| 3593 | struct sg_table *sg_ptr; |
| 3594 | |
| 3595 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3596 | (data->type != QSEECOM_CLIENT_APP)) |
| 3597 | return -EFAULT; |
| 3598 | |
| 3599 | if (msg == NULL) { |
| 3600 | pr_err("Invalid address\n"); |
| 3601 | return -EINVAL; |
| 3602 | } |
| 3603 | if (data->type == QSEECOM_LISTENER_SERVICE) { |
| 3604 | lstnr_resp = (struct qseecom_send_modfd_listener_resp *)msg; |
| 3605 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 3606 | if (IS_ERR_OR_NULL(this_lstnr)) { |
| 3607 | pr_err("Invalid listener ID\n"); |
| 3608 | return -ENOMEM; |
| 3609 | } |
| 3610 | } else { |
| 3611 | req = (struct qseecom_send_modfd_cmd_req *)msg; |
| 3612 | } |
| 3613 | |
| 3614 | for (i = 0; i < MAX_ION_FD; i++) { |
| 3615 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3616 | (req->ifd_data[i].fd > 0)) { |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 3617 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3618 | req->ifd_data[i].fd); |
| 3619 | if (IS_ERR_OR_NULL(ihandle)) { |
| 3620 | pr_err("Ion client can't retrieve the handle\n"); |
| 3621 | return -ENOMEM; |
| 3622 | } |
| 3623 | field = (char *) req->cmd_req_buf + |
| 3624 | req->ifd_data[i].cmd_buf_offset; |
| 3625 | } else if ((data->type == QSEECOM_LISTENER_SERVICE) && |
| 3626 | (lstnr_resp->ifd_data[i].fd > 0)) { |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 3627 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 3628 | lstnr_resp->ifd_data[i].fd); |
| 3629 | if (IS_ERR_OR_NULL(ihandle)) { |
| 3630 | pr_err("Ion client can't retrieve the handle\n"); |
| 3631 | return -ENOMEM; |
| 3632 | } |
| 3633 | field = lstnr_resp->resp_buf_ptr + |
| 3634 | lstnr_resp->ifd_data[i].cmd_buf_offset; |
| 3635 | } else { |
| 3636 | continue; |
| 3637 | } |
| 3638 | /* Populate the cmd data structure with the phys_addr */ |
| 3639 | sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle); |
| 3640 | if (IS_ERR_OR_NULL(sg_ptr)) { |
| 3641 | pr_err("IOn client could not retrieve sg table\n"); |
| 3642 | goto err; |
| 3643 | } |
| 3644 | if (sg_ptr->nents == 0) { |
| 3645 | pr_err("Num of scattered entries is 0\n"); |
| 3646 | goto err; |
| 3647 | } |
| 3648 | if (sg_ptr->nents > QSEECOM_MAX_SG_ENTRY) { |
| 3649 | pr_warn("Num of scattered entries"); |
| 3650 | pr_warn(" (%d) is greater than %d\n", |
| 3651 | sg_ptr->nents, QSEECOM_MAX_SG_ENTRY); |
| 3652 | if (cleanup) { |
| 3653 | if (data->client.sec_buf_fd[i].is_sec_buf_fd && |
| 3654 | data->client.sec_buf_fd[i].vbase) |
| 3655 | dma_free_coherent(qseecom.pdev, |
| 3656 | data->client.sec_buf_fd[i].size, |
| 3657 | data->client.sec_buf_fd[i].vbase, |
| 3658 | data->client.sec_buf_fd[i].pbase); |
| 3659 | } else { |
| 3660 | ret = __qseecom_allocate_sg_list_buffer(data, |
| 3661 | field, i, sg_ptr); |
| 3662 | if (ret) { |
| 3663 | pr_err("Failed to allocate sg list buffer\n"); |
| 3664 | goto err; |
| 3665 | } |
| 3666 | } |
| 3667 | len = QSEECOM_SG_LIST_BUF_HDR_SZ_64BIT; |
| 3668 | sg = sg_ptr->sgl; |
| 3669 | goto cleanup; |
| 3670 | } |
| 3671 | sg = sg_ptr->sgl; |
| 3672 | if (sg_ptr->nents == 1) { |
| 3673 | uint64_t *update_64bit; |
| 3674 | |
| 3675 | if (__boundary_checks_offset(req, lstnr_resp, data, i)) |
| 3676 | goto err; |
| 3677 | /* 64bit app uses 64bit address */ |
| 3678 | update_64bit = (uint64_t *) field; |
| 3679 | *update_64bit = cleanup ? 0 : |
| 3680 | (uint64_t)sg_dma_address(sg_ptr->sgl); |
| 3681 | len += (uint32_t)sg->length; |
| 3682 | } else { |
| 3683 | struct qseecom_sg_entry_64bit *update_64bit; |
| 3684 | int j = 0; |
| 3685 | |
| 3686 | if ((data->type != QSEECOM_LISTENER_SERVICE) && |
| 3687 | (req->ifd_data[i].fd > 0)) { |
| 3688 | |
| 3689 | if ((req->cmd_req_len < |
| 3690 | SG_ENTRY_SZ_64BIT * sg_ptr->nents) || |
| 3691 | (req->ifd_data[i].cmd_buf_offset > |
| 3692 | (req->cmd_req_len - |
| 3693 | SG_ENTRY_SZ_64BIT * sg_ptr->nents))) { |
| 3694 | pr_err("Invalid offset = 0x%x\n", |
| 3695 | req->ifd_data[i].cmd_buf_offset); |
| 3696 | goto err; |
| 3697 | } |
| 3698 | |
| 3699 | } else if ((data->type == QSEECOM_LISTENER_SERVICE) && |
| 3700 | (lstnr_resp->ifd_data[i].fd > 0)) { |
| 3701 | |
| 3702 | if ((lstnr_resp->resp_len < |
| 3703 | SG_ENTRY_SZ_64BIT * sg_ptr->nents) || |
| 3704 | (lstnr_resp->ifd_data[i].cmd_buf_offset > |
| 3705 | (lstnr_resp->resp_len - |
| 3706 | SG_ENTRY_SZ_64BIT * sg_ptr->nents))) { |
| 3707 | goto err; |
| 3708 | } |
| 3709 | } |
| 3710 | /* 64bit app uses 64bit address */ |
| 3711 | update_64bit = (struct qseecom_sg_entry_64bit *)field; |
| 3712 | for (j = 0; j < sg_ptr->nents; j++) { |
| 3713 | update_64bit->phys_addr = cleanup ? 0 : |
| 3714 | (uint64_t)sg_dma_address(sg); |
| 3715 | update_64bit->len = cleanup ? 0 : |
| 3716 | (uint32_t)sg->length; |
| 3717 | update_64bit++; |
| 3718 | len += sg->length; |
| 3719 | sg = sg_next(sg); |
| 3720 | } |
| 3721 | } |
| 3722 | cleanup: |
| 3723 | if (cleanup) { |
| 3724 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 3725 | ihandle, NULL, len, |
| 3726 | ION_IOC_INV_CACHES); |
| 3727 | if (ret) { |
| 3728 | pr_err("cache operation failed %d\n", ret); |
| 3729 | goto err; |
| 3730 | } |
| 3731 | } else { |
| 3732 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 3733 | ihandle, NULL, len, |
| 3734 | ION_IOC_CLEAN_INV_CACHES); |
| 3735 | if (ret) { |
| 3736 | pr_err("cache operation failed %d\n", ret); |
| 3737 | goto err; |
| 3738 | } |
| 3739 | if (data->type == QSEECOM_CLIENT_APP) { |
| 3740 | offset = req->ifd_data[i].cmd_buf_offset; |
| 3741 | data->sglistinfo_ptr[i].indexAndFlags = |
| 3742 | SGLISTINFO_SET_INDEX_FLAG( |
| 3743 | (sg_ptr->nents == 1), 1, offset); |
| 3744 | data->sglistinfo_ptr[i].sizeOrCount = |
| 3745 | (sg_ptr->nents == 1) ? |
| 3746 | sg->length : sg_ptr->nents; |
| 3747 | data->sglist_cnt = i + 1; |
| 3748 | } else { |
| 3749 | offset = (lstnr_resp->ifd_data[i].cmd_buf_offset |
| 3750 | + (uintptr_t)lstnr_resp->resp_buf_ptr - |
| 3751 | (uintptr_t)this_lstnr->sb_virt); |
| 3752 | this_lstnr->sglistinfo_ptr[i].indexAndFlags = |
| 3753 | SGLISTINFO_SET_INDEX_FLAG( |
| 3754 | (sg_ptr->nents == 1), 1, offset); |
| 3755 | this_lstnr->sglistinfo_ptr[i].sizeOrCount = |
| 3756 | (sg_ptr->nents == 1) ? |
| 3757 | sg->length : sg_ptr->nents; |
| 3758 | this_lstnr->sglist_cnt = i + 1; |
| 3759 | } |
| 3760 | } |
| 3761 | /* Deallocate the handle */ |
| 3762 | if (!IS_ERR_OR_NULL(ihandle)) |
| 3763 | ion_free(qseecom.ion_clnt, ihandle); |
| 3764 | } |
| 3765 | return ret; |
| 3766 | err: |
| 3767 | for (i = 0; i < MAX_ION_FD; i++) |
| 3768 | if (data->client.sec_buf_fd[i].is_sec_buf_fd && |
| 3769 | data->client.sec_buf_fd[i].vbase) |
| 3770 | dma_free_coherent(qseecom.pdev, |
| 3771 | data->client.sec_buf_fd[i].size, |
| 3772 | data->client.sec_buf_fd[i].vbase, |
| 3773 | data->client.sec_buf_fd[i].pbase); |
| 3774 | if (!IS_ERR_OR_NULL(ihandle)) |
| 3775 | ion_free(qseecom.ion_clnt, ihandle); |
| 3776 | return -ENOMEM; |
| 3777 | } |
| 3778 | |
| 3779 | static int __qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, |
| 3780 | void __user *argp, |
| 3781 | bool is_64bit_addr) |
| 3782 | { |
| 3783 | int ret = 0; |
| 3784 | int i; |
| 3785 | struct qseecom_send_modfd_cmd_req req; |
| 3786 | struct qseecom_send_cmd_req send_cmd_req; |
| 3787 | |
| 3788 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 3789 | if (ret) { |
| 3790 | pr_err("copy_from_user failed\n"); |
| 3791 | return ret; |
| 3792 | } |
| 3793 | |
| 3794 | send_cmd_req.cmd_req_buf = req.cmd_req_buf; |
| 3795 | send_cmd_req.cmd_req_len = req.cmd_req_len; |
| 3796 | send_cmd_req.resp_buf = req.resp_buf; |
| 3797 | send_cmd_req.resp_len = req.resp_len; |
| 3798 | |
| 3799 | if (__validate_send_cmd_inputs(data, &send_cmd_req)) |
| 3800 | return -EINVAL; |
| 3801 | |
| 3802 | /* validate offsets */ |
| 3803 | for (i = 0; i < MAX_ION_FD; i++) { |
| 3804 | if (req.ifd_data[i].cmd_buf_offset >= req.cmd_req_len) { |
| 3805 | pr_err("Invalid offset %d = 0x%x\n", |
| 3806 | i, req.ifd_data[i].cmd_buf_offset); |
| 3807 | return -EINVAL; |
| 3808 | } |
| 3809 | } |
| 3810 | req.cmd_req_buf = (void *)__qseecom_uvirt_to_kvirt(data, |
| 3811 | (uintptr_t)req.cmd_req_buf); |
| 3812 | req.resp_buf = (void *)__qseecom_uvirt_to_kvirt(data, |
| 3813 | (uintptr_t)req.resp_buf); |
| 3814 | |
| 3815 | if (!is_64bit_addr) { |
| 3816 | ret = __qseecom_update_cmd_buf(&req, false, data); |
| 3817 | if (ret) |
| 3818 | return ret; |
| 3819 | ret = __qseecom_send_cmd(data, &send_cmd_req); |
| 3820 | if (ret) |
| 3821 | return ret; |
| 3822 | ret = __qseecom_update_cmd_buf(&req, true, data); |
| 3823 | if (ret) |
| 3824 | return ret; |
| 3825 | } else { |
| 3826 | ret = __qseecom_update_cmd_buf_64(&req, false, data); |
| 3827 | if (ret) |
| 3828 | return ret; |
| 3829 | ret = __qseecom_send_cmd(data, &send_cmd_req); |
| 3830 | if (ret) |
| 3831 | return ret; |
| 3832 | ret = __qseecom_update_cmd_buf_64(&req, true, data); |
| 3833 | if (ret) |
| 3834 | return ret; |
| 3835 | } |
| 3836 | |
| 3837 | return ret; |
| 3838 | } |
| 3839 | |
| 3840 | static int qseecom_send_modfd_cmd(struct qseecom_dev_handle *data, |
| 3841 | void __user *argp) |
| 3842 | { |
| 3843 | return __qseecom_send_modfd_cmd(data, argp, false); |
| 3844 | } |
| 3845 | |
| 3846 | static int qseecom_send_modfd_cmd_64(struct qseecom_dev_handle *data, |
| 3847 | void __user *argp) |
| 3848 | { |
| 3849 | return __qseecom_send_modfd_cmd(data, argp, true); |
| 3850 | } |
| 3851 | |
| 3852 | |
| 3853 | |
| 3854 | static int __qseecom_listener_has_rcvd_req(struct qseecom_dev_handle *data, |
| 3855 | struct qseecom_registered_listener_list *svc) |
| 3856 | { |
| 3857 | int ret; |
| 3858 | |
| 3859 | ret = (svc->rcv_req_flag != 0); |
| 3860 | return ret || data->abort; |
| 3861 | } |
| 3862 | |
| 3863 | static int qseecom_receive_req(struct qseecom_dev_handle *data) |
| 3864 | { |
| 3865 | int ret = 0; |
| 3866 | struct qseecom_registered_listener_list *this_lstnr; |
| 3867 | |
| 3868 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 3869 | if (!this_lstnr) { |
| 3870 | pr_err("Invalid listener ID\n"); |
| 3871 | return -ENODATA; |
| 3872 | } |
| 3873 | |
| 3874 | while (1) { |
| 3875 | if (wait_event_freezable(this_lstnr->rcv_req_wq, |
| 3876 | __qseecom_listener_has_rcvd_req(data, |
| 3877 | this_lstnr))) { |
| 3878 | pr_debug("Interrupted: exiting Listener Service = %d\n", |
| 3879 | (uint32_t)data->listener.id); |
| 3880 | /* woken up for different reason */ |
| 3881 | return -ERESTARTSYS; |
| 3882 | } |
| 3883 | |
| 3884 | if (data->abort) { |
| 3885 | pr_err("Aborting Listener Service = %d\n", |
| 3886 | (uint32_t)data->listener.id); |
| 3887 | return -ENODEV; |
| 3888 | } |
| 3889 | this_lstnr->rcv_req_flag = 0; |
| 3890 | break; |
| 3891 | } |
| 3892 | return ret; |
| 3893 | } |
| 3894 | |
| 3895 | static bool __qseecom_is_fw_image_valid(const struct firmware *fw_entry) |
| 3896 | { |
| 3897 | unsigned char app_arch = 0; |
| 3898 | struct elf32_hdr *ehdr; |
| 3899 | struct elf64_hdr *ehdr64; |
| 3900 | |
| 3901 | app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS); |
| 3902 | |
| 3903 | switch (app_arch) { |
| 3904 | case ELFCLASS32: { |
| 3905 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 3906 | if (fw_entry->size < sizeof(*ehdr)) { |
| 3907 | pr_err("%s: Not big enough to be an elf32 header\n", |
| 3908 | qseecom.pdev->init_name); |
| 3909 | return false; |
| 3910 | } |
| 3911 | if (memcmp(ehdr->e_ident, ELFMAG, SELFMAG)) { |
| 3912 | pr_err("%s: Not an elf32 header\n", |
| 3913 | qseecom.pdev->init_name); |
| 3914 | return false; |
| 3915 | } |
| 3916 | if (ehdr->e_phnum == 0) { |
| 3917 | pr_err("%s: No loadable segments\n", |
| 3918 | qseecom.pdev->init_name); |
| 3919 | return false; |
| 3920 | } |
| 3921 | if (sizeof(struct elf32_phdr) * ehdr->e_phnum + |
| 3922 | sizeof(struct elf32_hdr) > fw_entry->size) { |
| 3923 | pr_err("%s: Program headers not within mdt\n", |
| 3924 | qseecom.pdev->init_name); |
| 3925 | return false; |
| 3926 | } |
| 3927 | break; |
| 3928 | } |
| 3929 | case ELFCLASS64: { |
| 3930 | ehdr64 = (struct elf64_hdr *)fw_entry->data; |
| 3931 | if (fw_entry->size < sizeof(*ehdr64)) { |
| 3932 | pr_err("%s: Not big enough to be an elf64 header\n", |
| 3933 | qseecom.pdev->init_name); |
| 3934 | return false; |
| 3935 | } |
| 3936 | if (memcmp(ehdr64->e_ident, ELFMAG, SELFMAG)) { |
| 3937 | pr_err("%s: Not an elf64 header\n", |
| 3938 | qseecom.pdev->init_name); |
| 3939 | return false; |
| 3940 | } |
| 3941 | if (ehdr64->e_phnum == 0) { |
| 3942 | pr_err("%s: No loadable segments\n", |
| 3943 | qseecom.pdev->init_name); |
| 3944 | return false; |
| 3945 | } |
| 3946 | if (sizeof(struct elf64_phdr) * ehdr64->e_phnum + |
| 3947 | sizeof(struct elf64_hdr) > fw_entry->size) { |
| 3948 | pr_err("%s: Program headers not within mdt\n", |
| 3949 | qseecom.pdev->init_name); |
| 3950 | return false; |
| 3951 | } |
| 3952 | break; |
| 3953 | } |
| 3954 | default: { |
| 3955 | pr_err("QSEE app arch %u is not supported\n", app_arch); |
| 3956 | return false; |
| 3957 | } |
| 3958 | } |
| 3959 | return true; |
| 3960 | } |
| 3961 | |
| 3962 | static int __qseecom_get_fw_size(const char *appname, uint32_t *fw_size, |
| 3963 | uint32_t *app_arch) |
| 3964 | { |
| 3965 | int ret = -1; |
| 3966 | int i = 0, rc = 0; |
| 3967 | const struct firmware *fw_entry = NULL; |
| 3968 | char fw_name[MAX_APP_NAME_SIZE]; |
| 3969 | struct elf32_hdr *ehdr; |
| 3970 | struct elf64_hdr *ehdr64; |
| 3971 | int num_images = 0; |
| 3972 | |
| 3973 | snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname); |
| 3974 | rc = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 3975 | if (rc) { |
| 3976 | pr_err("error with request_firmware\n"); |
| 3977 | ret = -EIO; |
| 3978 | goto err; |
| 3979 | } |
| 3980 | if (!__qseecom_is_fw_image_valid(fw_entry)) { |
| 3981 | ret = -EIO; |
| 3982 | goto err; |
| 3983 | } |
| 3984 | *app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS); |
| 3985 | *fw_size = fw_entry->size; |
| 3986 | if (*app_arch == ELFCLASS32) { |
| 3987 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 3988 | num_images = ehdr->e_phnum; |
| 3989 | } else if (*app_arch == ELFCLASS64) { |
| 3990 | ehdr64 = (struct elf64_hdr *)fw_entry->data; |
| 3991 | num_images = ehdr64->e_phnum; |
| 3992 | } else { |
| 3993 | pr_err("QSEE %s app, arch %u is not supported\n", |
| 3994 | appname, *app_arch); |
| 3995 | ret = -EIO; |
| 3996 | goto err; |
| 3997 | } |
| 3998 | pr_debug("QSEE %s app, arch %u\n", appname, *app_arch); |
| 3999 | release_firmware(fw_entry); |
| 4000 | fw_entry = NULL; |
| 4001 | for (i = 0; i < num_images; i++) { |
| 4002 | memset(fw_name, 0, sizeof(fw_name)); |
| 4003 | snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i); |
| 4004 | ret = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 4005 | if (ret) |
| 4006 | goto err; |
| 4007 | if (*fw_size > U32_MAX - fw_entry->size) { |
| 4008 | pr_err("QSEE %s app file size overflow\n", appname); |
| 4009 | ret = -EINVAL; |
| 4010 | goto err; |
| 4011 | } |
| 4012 | *fw_size += fw_entry->size; |
| 4013 | release_firmware(fw_entry); |
| 4014 | fw_entry = NULL; |
| 4015 | } |
| 4016 | |
| 4017 | return ret; |
| 4018 | err: |
| 4019 | if (fw_entry) |
| 4020 | release_firmware(fw_entry); |
| 4021 | *fw_size = 0; |
| 4022 | return ret; |
| 4023 | } |
| 4024 | |
| 4025 | static int __qseecom_get_fw_data(const char *appname, u8 *img_data, |
| 4026 | uint32_t fw_size, |
| 4027 | struct qseecom_load_app_ireq *load_req) |
| 4028 | { |
| 4029 | int ret = -1; |
| 4030 | int i = 0, rc = 0; |
| 4031 | const struct firmware *fw_entry = NULL; |
| 4032 | char fw_name[MAX_APP_NAME_SIZE]; |
| 4033 | u8 *img_data_ptr = img_data; |
| 4034 | struct elf32_hdr *ehdr; |
| 4035 | struct elf64_hdr *ehdr64; |
| 4036 | int num_images = 0; |
| 4037 | unsigned char app_arch = 0; |
| 4038 | |
| 4039 | snprintf(fw_name, sizeof(fw_name), "%s.mdt", appname); |
| 4040 | rc = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 4041 | if (rc) { |
| 4042 | ret = -EIO; |
| 4043 | goto err; |
| 4044 | } |
| 4045 | |
| 4046 | load_req->img_len = fw_entry->size; |
| 4047 | if (load_req->img_len > fw_size) { |
| 4048 | pr_err("app %s size %zu is larger than buf size %u\n", |
| 4049 | appname, fw_entry->size, fw_size); |
| 4050 | ret = -EINVAL; |
| 4051 | goto err; |
| 4052 | } |
| 4053 | memcpy(img_data_ptr, fw_entry->data, fw_entry->size); |
| 4054 | img_data_ptr = img_data_ptr + fw_entry->size; |
| 4055 | load_req->mdt_len = fw_entry->size; /*Get MDT LEN*/ |
| 4056 | |
| 4057 | app_arch = *(unsigned char *)(fw_entry->data + EI_CLASS); |
| 4058 | if (app_arch == ELFCLASS32) { |
| 4059 | ehdr = (struct elf32_hdr *)fw_entry->data; |
| 4060 | num_images = ehdr->e_phnum; |
| 4061 | } else if (app_arch == ELFCLASS64) { |
| 4062 | ehdr64 = (struct elf64_hdr *)fw_entry->data; |
| 4063 | num_images = ehdr64->e_phnum; |
| 4064 | } else { |
| 4065 | pr_err("QSEE %s app, arch %u is not supported\n", |
| 4066 | appname, app_arch); |
| 4067 | ret = -EIO; |
| 4068 | goto err; |
| 4069 | } |
| 4070 | release_firmware(fw_entry); |
| 4071 | fw_entry = NULL; |
| 4072 | for (i = 0; i < num_images; i++) { |
| 4073 | snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d", appname, i); |
| 4074 | ret = request_firmware(&fw_entry, fw_name, qseecom.pdev); |
| 4075 | if (ret) { |
| 4076 | pr_err("Failed to locate blob %s\n", fw_name); |
| 4077 | goto err; |
| 4078 | } |
| 4079 | if ((fw_entry->size > U32_MAX - load_req->img_len) || |
| 4080 | (fw_entry->size + load_req->img_len > fw_size)) { |
| 4081 | pr_err("Invalid file size for %s\n", fw_name); |
| 4082 | ret = -EINVAL; |
| 4083 | goto err; |
| 4084 | } |
| 4085 | memcpy(img_data_ptr, fw_entry->data, fw_entry->size); |
| 4086 | img_data_ptr = img_data_ptr + fw_entry->size; |
| 4087 | load_req->img_len += fw_entry->size; |
| 4088 | release_firmware(fw_entry); |
| 4089 | fw_entry = NULL; |
| 4090 | } |
| 4091 | return ret; |
| 4092 | err: |
| 4093 | release_firmware(fw_entry); |
| 4094 | return ret; |
| 4095 | } |
| 4096 | |
| 4097 | static int __qseecom_allocate_img_data(struct ion_handle **pihandle, |
| 4098 | u8 **data, uint32_t fw_size, ion_phys_addr_t *paddr) |
| 4099 | { |
| 4100 | size_t len = 0; |
| 4101 | int ret = 0; |
| 4102 | ion_phys_addr_t pa; |
| 4103 | struct ion_handle *ihandle = NULL; |
| 4104 | u8 *img_data = NULL; |
| 4105 | |
| 4106 | ihandle = ion_alloc(qseecom.ion_clnt, fw_size, |
| 4107 | SZ_4K, ION_HEAP(ION_QSECOM_HEAP_ID), 0); |
| 4108 | |
| 4109 | if (IS_ERR_OR_NULL(ihandle)) { |
| 4110 | pr_err("ION alloc failed\n"); |
| 4111 | return -ENOMEM; |
| 4112 | } |
| 4113 | img_data = (u8 *)ion_map_kernel(qseecom.ion_clnt, |
| 4114 | ihandle); |
| 4115 | |
| 4116 | if (IS_ERR_OR_NULL(img_data)) { |
| 4117 | pr_err("ION memory mapping for image loading failed\n"); |
| 4118 | ret = -ENOMEM; |
| 4119 | goto exit_ion_free; |
| 4120 | } |
| 4121 | /* Get the physical address of the ION BUF */ |
| 4122 | ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len); |
| 4123 | if (ret) { |
| 4124 | pr_err("physical memory retrieval failure\n"); |
| 4125 | ret = -EIO; |
| 4126 | goto exit_ion_unmap_kernel; |
| 4127 | } |
| 4128 | |
| 4129 | *pihandle = ihandle; |
| 4130 | *data = img_data; |
| 4131 | *paddr = pa; |
| 4132 | return ret; |
| 4133 | |
| 4134 | exit_ion_unmap_kernel: |
| 4135 | ion_unmap_kernel(qseecom.ion_clnt, ihandle); |
| 4136 | exit_ion_free: |
| 4137 | ion_free(qseecom.ion_clnt, ihandle); |
| 4138 | ihandle = NULL; |
| 4139 | return ret; |
| 4140 | } |
| 4141 | |
| 4142 | static void __qseecom_free_img_data(struct ion_handle **ihandle) |
| 4143 | { |
| 4144 | ion_unmap_kernel(qseecom.ion_clnt, *ihandle); |
| 4145 | ion_free(qseecom.ion_clnt, *ihandle); |
| 4146 | *ihandle = NULL; |
| 4147 | } |
| 4148 | |
| 4149 | static int __qseecom_load_fw(struct qseecom_dev_handle *data, char *appname, |
| 4150 | uint32_t *app_id) |
| 4151 | { |
| 4152 | int ret = -1; |
| 4153 | uint32_t fw_size = 0; |
| 4154 | struct qseecom_load_app_ireq load_req = {0, 0, 0, 0}; |
| 4155 | struct qseecom_load_app_64bit_ireq load_req_64bit = {0, 0, 0, 0}; |
| 4156 | struct qseecom_command_scm_resp resp; |
| 4157 | u8 *img_data = NULL; |
| 4158 | ion_phys_addr_t pa = 0; |
| 4159 | struct ion_handle *ihandle = NULL; |
| 4160 | void *cmd_buf = NULL; |
| 4161 | size_t cmd_len; |
| 4162 | uint32_t app_arch = 0; |
| 4163 | |
| 4164 | if (!data || !appname || !app_id) { |
| 4165 | pr_err("Null pointer to data or appname or appid\n"); |
| 4166 | return -EINVAL; |
| 4167 | } |
| 4168 | *app_id = 0; |
| 4169 | if (__qseecom_get_fw_size(appname, &fw_size, &app_arch)) |
| 4170 | return -EIO; |
| 4171 | data->client.app_arch = app_arch; |
| 4172 | |
| 4173 | /* Check and load cmnlib */ |
| 4174 | if (qseecom.qsee_version > QSEEE_VERSION_00) { |
| 4175 | if (!qseecom.commonlib_loaded && app_arch == ELFCLASS32) { |
| 4176 | ret = qseecom_load_commonlib_image(data, "cmnlib"); |
| 4177 | if (ret) { |
| 4178 | pr_err("failed to load cmnlib\n"); |
| 4179 | return -EIO; |
| 4180 | } |
| 4181 | qseecom.commonlib_loaded = true; |
| 4182 | pr_debug("cmnlib is loaded\n"); |
| 4183 | } |
| 4184 | |
| 4185 | if (!qseecom.commonlib64_loaded && app_arch == ELFCLASS64) { |
| 4186 | ret = qseecom_load_commonlib_image(data, "cmnlib64"); |
| 4187 | if (ret) { |
| 4188 | pr_err("failed to load cmnlib64\n"); |
| 4189 | return -EIO; |
| 4190 | } |
| 4191 | qseecom.commonlib64_loaded = true; |
| 4192 | pr_debug("cmnlib64 is loaded\n"); |
| 4193 | } |
| 4194 | } |
| 4195 | |
| 4196 | ret = __qseecom_allocate_img_data(&ihandle, &img_data, fw_size, &pa); |
| 4197 | if (ret) |
| 4198 | return ret; |
| 4199 | |
| 4200 | ret = __qseecom_get_fw_data(appname, img_data, fw_size, &load_req); |
| 4201 | if (ret) { |
| 4202 | ret = -EIO; |
| 4203 | goto exit_free_img_data; |
| 4204 | } |
| 4205 | |
| 4206 | /* Populate the load_req parameters */ |
| 4207 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 4208 | load_req.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 4209 | load_req.mdt_len = load_req.mdt_len; |
| 4210 | load_req.img_len = load_req.img_len; |
| 4211 | strlcpy(load_req.app_name, appname, MAX_APP_NAME_SIZE); |
| 4212 | load_req.phy_addr = (uint32_t)pa; |
| 4213 | cmd_buf = (void *)&load_req; |
| 4214 | cmd_len = sizeof(struct qseecom_load_app_ireq); |
| 4215 | } else { |
| 4216 | load_req_64bit.qsee_cmd_id = QSEOS_APP_START_COMMAND; |
| 4217 | load_req_64bit.mdt_len = load_req.mdt_len; |
| 4218 | load_req_64bit.img_len = load_req.img_len; |
| 4219 | strlcpy(load_req_64bit.app_name, appname, MAX_APP_NAME_SIZE); |
| 4220 | load_req_64bit.phy_addr = (uint64_t)pa; |
| 4221 | cmd_buf = (void *)&load_req_64bit; |
| 4222 | cmd_len = sizeof(struct qseecom_load_app_64bit_ireq); |
| 4223 | } |
| 4224 | |
| 4225 | if (qseecom.support_bus_scaling) { |
| 4226 | mutex_lock(&qsee_bw_mutex); |
| 4227 | ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM); |
| 4228 | mutex_unlock(&qsee_bw_mutex); |
| 4229 | if (ret) { |
| 4230 | ret = -EIO; |
| 4231 | goto exit_free_img_data; |
| 4232 | } |
| 4233 | } |
| 4234 | |
| 4235 | ret = __qseecom_enable_clk_scale_up(data); |
| 4236 | if (ret) { |
| 4237 | ret = -EIO; |
| 4238 | goto exit_unregister_bus_bw_need; |
| 4239 | } |
| 4240 | |
| 4241 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, |
| 4242 | img_data, fw_size, |
| 4243 | ION_IOC_CLEAN_INV_CACHES); |
| 4244 | if (ret) { |
| 4245 | pr_err("cache operation failed %d\n", ret); |
| 4246 | goto exit_disable_clk_vote; |
| 4247 | } |
| 4248 | |
| 4249 | /* SCM_CALL to load the image */ |
| 4250 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len, |
| 4251 | &resp, sizeof(resp)); |
| 4252 | if (ret) { |
| 4253 | pr_err("scm_call to load failed : ret %d\n", ret); |
| 4254 | ret = -EIO; |
| 4255 | goto exit_disable_clk_vote; |
| 4256 | } |
| 4257 | |
| 4258 | switch (resp.result) { |
| 4259 | case QSEOS_RESULT_SUCCESS: |
| 4260 | *app_id = resp.data; |
| 4261 | break; |
| 4262 | case QSEOS_RESULT_INCOMPLETE: |
| 4263 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 4264 | if (ret) |
| 4265 | pr_err("process_incomplete_cmd FAILED\n"); |
| 4266 | else |
| 4267 | *app_id = resp.data; |
| 4268 | break; |
| 4269 | case QSEOS_RESULT_FAILURE: |
| 4270 | pr_err("scm call failed with response QSEOS_RESULT FAILURE\n"); |
| 4271 | break; |
| 4272 | default: |
| 4273 | pr_err("scm call return unknown response %d\n", resp.result); |
| 4274 | ret = -EINVAL; |
| 4275 | break; |
| 4276 | } |
| 4277 | |
| 4278 | exit_disable_clk_vote: |
| 4279 | __qseecom_disable_clk_scale_down(data); |
| 4280 | |
| 4281 | exit_unregister_bus_bw_need: |
| 4282 | if (qseecom.support_bus_scaling) { |
| 4283 | mutex_lock(&qsee_bw_mutex); |
| 4284 | qseecom_unregister_bus_bandwidth_needs(data); |
| 4285 | mutex_unlock(&qsee_bw_mutex); |
| 4286 | } |
| 4287 | |
| 4288 | exit_free_img_data: |
| 4289 | __qseecom_free_img_data(&ihandle); |
| 4290 | return ret; |
| 4291 | } |
| 4292 | |
| 4293 | static int qseecom_load_commonlib_image(struct qseecom_dev_handle *data, |
| 4294 | char *cmnlib_name) |
| 4295 | { |
| 4296 | int ret = 0; |
| 4297 | uint32_t fw_size = 0; |
| 4298 | struct qseecom_load_app_ireq load_req = {0, 0, 0, 0}; |
| 4299 | struct qseecom_load_app_64bit_ireq load_req_64bit = {0, 0, 0, 0}; |
| 4300 | struct qseecom_command_scm_resp resp; |
| 4301 | u8 *img_data = NULL; |
| 4302 | ion_phys_addr_t pa = 0; |
| 4303 | void *cmd_buf = NULL; |
| 4304 | size_t cmd_len; |
| 4305 | uint32_t app_arch = 0; |
Zhen Kong | 3bafb31 | 2017-10-18 10:27:20 -0700 | [diff] [blame] | 4306 | struct ion_handle *cmnlib_ion_handle = NULL; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4307 | |
| 4308 | if (!cmnlib_name) { |
| 4309 | pr_err("cmnlib_name is NULL\n"); |
| 4310 | return -EINVAL; |
| 4311 | } |
| 4312 | if (strlen(cmnlib_name) >= MAX_APP_NAME_SIZE) { |
| 4313 | pr_err("The cmnlib_name (%s) with length %zu is not valid\n", |
| 4314 | cmnlib_name, strlen(cmnlib_name)); |
| 4315 | return -EINVAL; |
| 4316 | } |
| 4317 | |
| 4318 | if (__qseecom_get_fw_size(cmnlib_name, &fw_size, &app_arch)) |
| 4319 | return -EIO; |
| 4320 | |
Zhen Kong | 3bafb31 | 2017-10-18 10:27:20 -0700 | [diff] [blame] | 4321 | ret = __qseecom_allocate_img_data(&cmnlib_ion_handle, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4322 | &img_data, fw_size, &pa); |
| 4323 | if (ret) |
| 4324 | return -EIO; |
| 4325 | |
| 4326 | ret = __qseecom_get_fw_data(cmnlib_name, img_data, fw_size, &load_req); |
| 4327 | if (ret) { |
| 4328 | ret = -EIO; |
| 4329 | goto exit_free_img_data; |
| 4330 | } |
| 4331 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 4332 | load_req.phy_addr = (uint32_t)pa; |
| 4333 | load_req.qsee_cmd_id = QSEOS_LOAD_SERV_IMAGE_COMMAND; |
| 4334 | cmd_buf = (void *)&load_req; |
| 4335 | cmd_len = sizeof(struct qseecom_load_lib_image_ireq); |
| 4336 | } else { |
| 4337 | load_req_64bit.phy_addr = (uint64_t)pa; |
| 4338 | load_req_64bit.qsee_cmd_id = QSEOS_LOAD_SERV_IMAGE_COMMAND; |
| 4339 | load_req_64bit.img_len = load_req.img_len; |
| 4340 | load_req_64bit.mdt_len = load_req.mdt_len; |
| 4341 | cmd_buf = (void *)&load_req_64bit; |
| 4342 | cmd_len = sizeof(struct qseecom_load_lib_image_64bit_ireq); |
| 4343 | } |
| 4344 | |
| 4345 | if (qseecom.support_bus_scaling) { |
| 4346 | mutex_lock(&qsee_bw_mutex); |
| 4347 | ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM); |
| 4348 | mutex_unlock(&qsee_bw_mutex); |
| 4349 | if (ret) { |
| 4350 | ret = -EIO; |
| 4351 | goto exit_free_img_data; |
| 4352 | } |
| 4353 | } |
| 4354 | |
| 4355 | /* Vote for the SFPB clock */ |
| 4356 | ret = __qseecom_enable_clk_scale_up(data); |
| 4357 | if (ret) { |
| 4358 | ret = -EIO; |
| 4359 | goto exit_unregister_bus_bw_need; |
| 4360 | } |
| 4361 | |
Zhen Kong | 3bafb31 | 2017-10-18 10:27:20 -0700 | [diff] [blame] | 4362 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, cmnlib_ion_handle, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4363 | img_data, fw_size, |
| 4364 | ION_IOC_CLEAN_INV_CACHES); |
| 4365 | if (ret) { |
| 4366 | pr_err("cache operation failed %d\n", ret); |
| 4367 | goto exit_disable_clk_vote; |
| 4368 | } |
| 4369 | |
| 4370 | /* SCM_CALL to load the image */ |
| 4371 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len, |
| 4372 | &resp, sizeof(resp)); |
| 4373 | if (ret) { |
| 4374 | pr_err("scm_call to load failed : ret %d\n", ret); |
| 4375 | ret = -EIO; |
| 4376 | goto exit_disable_clk_vote; |
| 4377 | } |
| 4378 | |
| 4379 | switch (resp.result) { |
| 4380 | case QSEOS_RESULT_SUCCESS: |
| 4381 | break; |
| 4382 | case QSEOS_RESULT_FAILURE: |
| 4383 | pr_err("scm call failed w/response result%d\n", resp.result); |
| 4384 | ret = -EINVAL; |
| 4385 | goto exit_disable_clk_vote; |
| 4386 | case QSEOS_RESULT_INCOMPLETE: |
| 4387 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 4388 | if (ret) { |
| 4389 | pr_err("process_incomplete_cmd failed err: %d\n", ret); |
| 4390 | goto exit_disable_clk_vote; |
| 4391 | } |
| 4392 | break; |
| 4393 | default: |
| 4394 | pr_err("scm call return unknown response %d\n", resp.result); |
| 4395 | ret = -EINVAL; |
| 4396 | goto exit_disable_clk_vote; |
| 4397 | } |
| 4398 | |
| 4399 | exit_disable_clk_vote: |
| 4400 | __qseecom_disable_clk_scale_down(data); |
| 4401 | |
| 4402 | exit_unregister_bus_bw_need: |
| 4403 | if (qseecom.support_bus_scaling) { |
| 4404 | mutex_lock(&qsee_bw_mutex); |
| 4405 | qseecom_unregister_bus_bandwidth_needs(data); |
| 4406 | mutex_unlock(&qsee_bw_mutex); |
| 4407 | } |
| 4408 | |
| 4409 | exit_free_img_data: |
Zhen Kong | 3bafb31 | 2017-10-18 10:27:20 -0700 | [diff] [blame] | 4410 | __qseecom_free_img_data(&cmnlib_ion_handle); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4411 | return ret; |
| 4412 | } |
| 4413 | |
| 4414 | static int qseecom_unload_commonlib_image(void) |
| 4415 | { |
| 4416 | int ret = -EINVAL; |
| 4417 | struct qseecom_unload_lib_image_ireq unload_req = {0}; |
| 4418 | struct qseecom_command_scm_resp resp; |
| 4419 | |
| 4420 | /* Populate the remaining parameters */ |
| 4421 | unload_req.qsee_cmd_id = QSEOS_UNLOAD_SERV_IMAGE_COMMAND; |
| 4422 | |
| 4423 | /* SCM_CALL to load the image */ |
| 4424 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &unload_req, |
| 4425 | sizeof(struct qseecom_unload_lib_image_ireq), |
| 4426 | &resp, sizeof(resp)); |
| 4427 | if (ret) { |
| 4428 | pr_err("scm_call to unload lib failed : ret %d\n", ret); |
| 4429 | ret = -EIO; |
| 4430 | } else { |
| 4431 | switch (resp.result) { |
| 4432 | case QSEOS_RESULT_SUCCESS: |
| 4433 | break; |
| 4434 | case QSEOS_RESULT_FAILURE: |
| 4435 | pr_err("scm fail resp.result QSEOS_RESULT FAILURE\n"); |
| 4436 | break; |
| 4437 | default: |
| 4438 | pr_err("scm call return unknown response %d\n", |
| 4439 | resp.result); |
| 4440 | ret = -EINVAL; |
| 4441 | break; |
| 4442 | } |
| 4443 | } |
| 4444 | |
| 4445 | return ret; |
| 4446 | } |
| 4447 | |
| 4448 | int qseecom_start_app(struct qseecom_handle **handle, |
| 4449 | char *app_name, uint32_t size) |
| 4450 | { |
| 4451 | int32_t ret = 0; |
| 4452 | unsigned long flags = 0; |
| 4453 | struct qseecom_dev_handle *data = NULL; |
| 4454 | struct qseecom_check_app_ireq app_ireq; |
| 4455 | struct qseecom_registered_app_list *entry = NULL; |
| 4456 | struct qseecom_registered_kclient_list *kclient_entry = NULL; |
| 4457 | bool found_app = false; |
| 4458 | size_t len; |
| 4459 | ion_phys_addr_t pa; |
| 4460 | uint32_t fw_size, app_arch; |
| 4461 | uint32_t app_id = 0; |
| 4462 | |
| 4463 | if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) { |
| 4464 | pr_err("Not allowed to be called in %d state\n", |
| 4465 | atomic_read(&qseecom.qseecom_state)); |
| 4466 | return -EPERM; |
| 4467 | } |
| 4468 | if (!app_name) { |
| 4469 | pr_err("failed to get the app name\n"); |
| 4470 | return -EINVAL; |
| 4471 | } |
| 4472 | |
Zhen Kong | 64a6d728 | 2017-06-16 11:55:07 -0700 | [diff] [blame] | 4473 | if (strnlen(app_name, MAX_APP_NAME_SIZE) == MAX_APP_NAME_SIZE) { |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4474 | pr_err("The app_name (%s) with length %zu is not valid\n", |
Zhen Kong | 64a6d728 | 2017-06-16 11:55:07 -0700 | [diff] [blame] | 4475 | app_name, strnlen(app_name, MAX_APP_NAME_SIZE)); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4476 | return -EINVAL; |
| 4477 | } |
| 4478 | |
| 4479 | *handle = kzalloc(sizeof(struct qseecom_handle), GFP_KERNEL); |
| 4480 | if (!(*handle)) |
| 4481 | return -ENOMEM; |
| 4482 | |
| 4483 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
| 4484 | if (!data) { |
| 4485 | if (ret == 0) { |
| 4486 | kfree(*handle); |
| 4487 | *handle = NULL; |
| 4488 | } |
| 4489 | return -ENOMEM; |
| 4490 | } |
| 4491 | data->abort = 0; |
| 4492 | data->type = QSEECOM_CLIENT_APP; |
| 4493 | data->released = false; |
| 4494 | data->client.sb_length = size; |
| 4495 | data->client.user_virt_sb_base = 0; |
| 4496 | data->client.ihandle = NULL; |
| 4497 | |
| 4498 | init_waitqueue_head(&data->abort_wq); |
| 4499 | |
| 4500 | data->client.ihandle = ion_alloc(qseecom.ion_clnt, size, 4096, |
| 4501 | ION_HEAP(ION_QSECOM_HEAP_ID), 0); |
| 4502 | if (IS_ERR_OR_NULL(data->client.ihandle)) { |
| 4503 | pr_err("Ion client could not retrieve the handle\n"); |
| 4504 | kfree(data); |
| 4505 | kfree(*handle); |
| 4506 | *handle = NULL; |
| 4507 | return -EINVAL; |
| 4508 | } |
| 4509 | mutex_lock(&app_access_lock); |
| 4510 | |
| 4511 | app_ireq.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
| 4512 | strlcpy(app_ireq.app_name, app_name, MAX_APP_NAME_SIZE); |
| 4513 | ret = __qseecom_check_app_exists(app_ireq, &app_id); |
| 4514 | if (ret) |
| 4515 | goto err; |
| 4516 | |
| 4517 | strlcpy(data->client.app_name, app_name, MAX_APP_NAME_SIZE); |
| 4518 | if (app_id) { |
| 4519 | pr_warn("App id %d for [%s] app exists\n", app_id, |
| 4520 | (char *)app_ireq.app_name); |
| 4521 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 4522 | list_for_each_entry(entry, |
| 4523 | &qseecom.registered_app_list_head, list){ |
| 4524 | if (entry->app_id == app_id) { |
| 4525 | entry->ref_cnt++; |
| 4526 | found_app = true; |
| 4527 | break; |
| 4528 | } |
| 4529 | } |
| 4530 | spin_unlock_irqrestore( |
| 4531 | &qseecom.registered_app_list_lock, flags); |
| 4532 | if (!found_app) |
| 4533 | pr_warn("App_id %d [%s] was loaded but not registered\n", |
| 4534 | ret, (char *)app_ireq.app_name); |
| 4535 | } else { |
| 4536 | /* load the app and get the app_id */ |
| 4537 | pr_debug("%s: Loading app for the first time'\n", |
| 4538 | qseecom.pdev->init_name); |
| 4539 | ret = __qseecom_load_fw(data, app_name, &app_id); |
| 4540 | if (ret < 0) |
| 4541 | goto err; |
| 4542 | } |
| 4543 | data->client.app_id = app_id; |
| 4544 | if (!found_app) { |
| 4545 | entry = kmalloc(sizeof(*entry), GFP_KERNEL); |
| 4546 | if (!entry) { |
| 4547 | pr_err("kmalloc for app entry failed\n"); |
| 4548 | ret = -ENOMEM; |
| 4549 | goto err; |
| 4550 | } |
| 4551 | entry->app_id = app_id; |
| 4552 | entry->ref_cnt = 1; |
| 4553 | strlcpy(entry->app_name, app_name, MAX_APP_NAME_SIZE); |
| 4554 | if (__qseecom_get_fw_size(app_name, &fw_size, &app_arch)) { |
| 4555 | ret = -EIO; |
| 4556 | kfree(entry); |
| 4557 | goto err; |
| 4558 | } |
| 4559 | entry->app_arch = app_arch; |
| 4560 | entry->app_blocked = false; |
| 4561 | entry->blocked_on_listener_id = 0; |
| 4562 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 4563 | list_add_tail(&entry->list, &qseecom.registered_app_list_head); |
| 4564 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, |
| 4565 | flags); |
| 4566 | } |
| 4567 | |
| 4568 | /* Get the physical address of the ION BUF */ |
| 4569 | ret = ion_phys(qseecom.ion_clnt, data->client.ihandle, &pa, &len); |
| 4570 | if (ret) { |
| 4571 | pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n", |
| 4572 | ret); |
| 4573 | goto err; |
| 4574 | } |
| 4575 | |
| 4576 | /* Populate the structure for sending scm call to load image */ |
| 4577 | data->client.sb_virt = (char *) ion_map_kernel(qseecom.ion_clnt, |
| 4578 | data->client.ihandle); |
| 4579 | if (IS_ERR_OR_NULL(data->client.sb_virt)) { |
| 4580 | pr_err("ION memory mapping for client shared buf failed\n"); |
| 4581 | ret = -ENOMEM; |
| 4582 | goto err; |
| 4583 | } |
| 4584 | data->client.user_virt_sb_base = (uintptr_t)data->client.sb_virt; |
| 4585 | data->client.sb_phys = (phys_addr_t)pa; |
| 4586 | (*handle)->dev = (void *)data; |
| 4587 | (*handle)->sbuf = (unsigned char *)data->client.sb_virt; |
| 4588 | (*handle)->sbuf_len = data->client.sb_length; |
| 4589 | |
| 4590 | kclient_entry = kzalloc(sizeof(*kclient_entry), GFP_KERNEL); |
| 4591 | if (!kclient_entry) { |
| 4592 | ret = -ENOMEM; |
| 4593 | goto err; |
| 4594 | } |
| 4595 | kclient_entry->handle = *handle; |
| 4596 | |
| 4597 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
| 4598 | list_add_tail(&kclient_entry->list, |
| 4599 | &qseecom.registered_kclient_list_head); |
| 4600 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 4601 | |
| 4602 | mutex_unlock(&app_access_lock); |
| 4603 | return 0; |
| 4604 | |
| 4605 | err: |
| 4606 | kfree(data); |
| 4607 | kfree(*handle); |
| 4608 | *handle = NULL; |
| 4609 | mutex_unlock(&app_access_lock); |
| 4610 | return ret; |
| 4611 | } |
| 4612 | EXPORT_SYMBOL(qseecom_start_app); |
| 4613 | |
| 4614 | int qseecom_shutdown_app(struct qseecom_handle **handle) |
| 4615 | { |
| 4616 | int ret = -EINVAL; |
| 4617 | struct qseecom_dev_handle *data; |
| 4618 | |
| 4619 | struct qseecom_registered_kclient_list *kclient = NULL; |
| 4620 | unsigned long flags = 0; |
| 4621 | bool found_handle = false; |
| 4622 | |
| 4623 | if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) { |
| 4624 | pr_err("Not allowed to be called in %d state\n", |
| 4625 | atomic_read(&qseecom.qseecom_state)); |
| 4626 | return -EPERM; |
| 4627 | } |
| 4628 | |
| 4629 | if ((handle == NULL) || (*handle == NULL)) { |
| 4630 | pr_err("Handle is not initialized\n"); |
| 4631 | return -EINVAL; |
| 4632 | } |
| 4633 | data = (struct qseecom_dev_handle *) ((*handle)->dev); |
| 4634 | mutex_lock(&app_access_lock); |
| 4635 | |
| 4636 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
| 4637 | list_for_each_entry(kclient, &qseecom.registered_kclient_list_head, |
| 4638 | list) { |
| 4639 | if (kclient->handle == (*handle)) { |
| 4640 | list_del(&kclient->list); |
| 4641 | found_handle = true; |
| 4642 | break; |
| 4643 | } |
| 4644 | } |
| 4645 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 4646 | if (!found_handle) |
| 4647 | pr_err("Unable to find the handle, exiting\n"); |
| 4648 | else |
| 4649 | ret = qseecom_unload_app(data, false); |
| 4650 | |
| 4651 | mutex_unlock(&app_access_lock); |
| 4652 | if (ret == 0) { |
| 4653 | kzfree(data); |
| 4654 | kzfree(*handle); |
| 4655 | kzfree(kclient); |
| 4656 | *handle = NULL; |
| 4657 | } |
| 4658 | |
| 4659 | return ret; |
| 4660 | } |
| 4661 | EXPORT_SYMBOL(qseecom_shutdown_app); |
| 4662 | |
| 4663 | int qseecom_send_command(struct qseecom_handle *handle, void *send_buf, |
| 4664 | uint32_t sbuf_len, void *resp_buf, uint32_t rbuf_len) |
| 4665 | { |
| 4666 | int ret = 0; |
| 4667 | struct qseecom_send_cmd_req req = {0, 0, 0, 0}; |
| 4668 | struct qseecom_dev_handle *data; |
| 4669 | bool perf_enabled = false; |
| 4670 | |
| 4671 | if (atomic_read(&qseecom.qseecom_state) != QSEECOM_STATE_READY) { |
| 4672 | pr_err("Not allowed to be called in %d state\n", |
| 4673 | atomic_read(&qseecom.qseecom_state)); |
| 4674 | return -EPERM; |
| 4675 | } |
| 4676 | |
| 4677 | if (handle == NULL) { |
| 4678 | pr_err("Handle is not initialized\n"); |
| 4679 | return -EINVAL; |
| 4680 | } |
| 4681 | data = handle->dev; |
| 4682 | |
| 4683 | req.cmd_req_len = sbuf_len; |
| 4684 | req.resp_len = rbuf_len; |
| 4685 | req.cmd_req_buf = send_buf; |
| 4686 | req.resp_buf = resp_buf; |
| 4687 | |
| 4688 | if (__validate_send_cmd_inputs(data, &req)) |
| 4689 | return -EINVAL; |
| 4690 | |
| 4691 | mutex_lock(&app_access_lock); |
| 4692 | if (qseecom.support_bus_scaling) { |
| 4693 | ret = qseecom_scale_bus_bandwidth_timer(INACTIVE); |
| 4694 | if (ret) { |
| 4695 | pr_err("Failed to set bw.\n"); |
| 4696 | mutex_unlock(&app_access_lock); |
| 4697 | return ret; |
| 4698 | } |
| 4699 | } |
| 4700 | /* |
| 4701 | * On targets where crypto clock is handled by HLOS, |
| 4702 | * if clk_access_cnt is zero and perf_enabled is false, |
| 4703 | * then the crypto clock was not enabled before sending cmd |
| 4704 | * to tz, qseecom will enable the clock to avoid service failure. |
| 4705 | */ |
| 4706 | if (!qseecom.no_clock_support && |
| 4707 | !qseecom.qsee.clk_access_cnt && !data->perf_enabled) { |
| 4708 | pr_debug("ce clock is not enabled!\n"); |
| 4709 | ret = qseecom_perf_enable(data); |
| 4710 | if (ret) { |
| 4711 | pr_err("Failed to vote for clock with err %d\n", |
| 4712 | ret); |
| 4713 | mutex_unlock(&app_access_lock); |
| 4714 | return -EINVAL; |
| 4715 | } |
| 4716 | perf_enabled = true; |
| 4717 | } |
| 4718 | if (!strcmp(data->client.app_name, "securemm")) |
| 4719 | data->use_legacy_cmd = true; |
| 4720 | |
| 4721 | ret = __qseecom_send_cmd(data, &req); |
| 4722 | data->use_legacy_cmd = false; |
| 4723 | if (qseecom.support_bus_scaling) |
| 4724 | __qseecom_add_bw_scale_down_timer( |
| 4725 | QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 4726 | |
| 4727 | if (perf_enabled) { |
| 4728 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 4729 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 4730 | } |
| 4731 | |
| 4732 | mutex_unlock(&app_access_lock); |
| 4733 | |
| 4734 | if (ret) |
| 4735 | return ret; |
| 4736 | |
| 4737 | pr_debug("sending cmd_req->rsp size: %u, ptr: 0x%pK\n", |
| 4738 | req.resp_len, req.resp_buf); |
| 4739 | return ret; |
| 4740 | } |
| 4741 | EXPORT_SYMBOL(qseecom_send_command); |
| 4742 | |
| 4743 | int qseecom_set_bandwidth(struct qseecom_handle *handle, bool high) |
| 4744 | { |
| 4745 | int ret = 0; |
| 4746 | |
| 4747 | if ((handle == NULL) || (handle->dev == NULL)) { |
| 4748 | pr_err("No valid kernel client\n"); |
| 4749 | return -EINVAL; |
| 4750 | } |
| 4751 | if (high) { |
| 4752 | if (qseecom.support_bus_scaling) { |
| 4753 | mutex_lock(&qsee_bw_mutex); |
| 4754 | __qseecom_register_bus_bandwidth_needs(handle->dev, |
| 4755 | HIGH); |
| 4756 | mutex_unlock(&qsee_bw_mutex); |
| 4757 | } else { |
| 4758 | ret = qseecom_perf_enable(handle->dev); |
| 4759 | if (ret) |
| 4760 | pr_err("Failed to vote for clock with err %d\n", |
| 4761 | ret); |
| 4762 | } |
| 4763 | } else { |
| 4764 | if (!qseecom.support_bus_scaling) { |
| 4765 | qsee_disable_clock_vote(handle->dev, CLK_DFAB); |
| 4766 | qsee_disable_clock_vote(handle->dev, CLK_SFPB); |
| 4767 | } else { |
| 4768 | mutex_lock(&qsee_bw_mutex); |
| 4769 | qseecom_unregister_bus_bandwidth_needs(handle->dev); |
| 4770 | mutex_unlock(&qsee_bw_mutex); |
| 4771 | } |
| 4772 | } |
| 4773 | return ret; |
| 4774 | } |
| 4775 | EXPORT_SYMBOL(qseecom_set_bandwidth); |
| 4776 | |
| 4777 | int qseecom_process_listener_from_smcinvoke(struct scm_desc *desc) |
| 4778 | { |
| 4779 | struct qseecom_registered_app_list dummy_app_entry = { {0} }; |
| 4780 | struct qseecom_dev_handle dummy_private_data = {0}; |
| 4781 | struct qseecom_command_scm_resp resp; |
| 4782 | int ret = 0; |
| 4783 | |
| 4784 | if (!desc) { |
| 4785 | pr_err("desc is NULL\n"); |
| 4786 | return -EINVAL; |
| 4787 | } |
| 4788 | |
| 4789 | resp.result = desc->ret[0]; /*req_cmd*/ |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 4790 | resp.resp_type = desc->ret[1]; /*incomplete:unused;blocked:session_id*/ |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4791 | resp.data = desc->ret[2]; /*listener_id*/ |
| 4792 | |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4793 | mutex_lock(&app_access_lock); |
Zhen Kong | 7458c2e | 2017-10-19 12:32:07 -0700 | [diff] [blame] | 4794 | if (qseecom.qsee_reentrancy_support) |
| 4795 | ret = __qseecom_process_reentrancy(&resp, &dummy_app_entry, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4796 | &dummy_private_data); |
Zhen Kong | 7458c2e | 2017-10-19 12:32:07 -0700 | [diff] [blame] | 4797 | else |
| 4798 | ret = __qseecom_process_incomplete_cmd(&dummy_private_data, |
| 4799 | &resp); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4800 | mutex_unlock(&app_access_lock); |
| 4801 | if (ret) |
Zhen Kong | 2f60f49 | 2017-06-29 15:22:14 -0700 | [diff] [blame] | 4802 | pr_err("Failed on cmd %d for lsnr %d session %d, ret = %d\n", |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 4803 | (int)desc->ret[0], (int)desc->ret[2], |
| 4804 | (int)desc->ret[1], ret); |
| 4805 | desc->ret[0] = resp.result; |
| 4806 | desc->ret[1] = resp.resp_type; |
| 4807 | desc->ret[2] = resp.data; |
| 4808 | return ret; |
| 4809 | } |
| 4810 | EXPORT_SYMBOL(qseecom_process_listener_from_smcinvoke); |
| 4811 | |
| 4812 | static int qseecom_send_resp(void) |
| 4813 | { |
| 4814 | qseecom.send_resp_flag = 1; |
| 4815 | wake_up_interruptible(&qseecom.send_resp_wq); |
| 4816 | return 0; |
| 4817 | } |
| 4818 | |
| 4819 | static int qseecom_reentrancy_send_resp(struct qseecom_dev_handle *data) |
| 4820 | { |
| 4821 | struct qseecom_registered_listener_list *this_lstnr = NULL; |
| 4822 | |
| 4823 | pr_debug("lstnr %d send resp, wakeup\n", data->listener.id); |
| 4824 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 4825 | if (this_lstnr == NULL) |
| 4826 | return -EINVAL; |
| 4827 | qseecom.send_resp_flag = 1; |
| 4828 | this_lstnr->send_resp_flag = 1; |
| 4829 | wake_up_interruptible(&qseecom.send_resp_wq); |
| 4830 | return 0; |
| 4831 | } |
| 4832 | |
| 4833 | static int __validate_send_modfd_resp_inputs(struct qseecom_dev_handle *data, |
| 4834 | struct qseecom_send_modfd_listener_resp *resp, |
| 4835 | struct qseecom_registered_listener_list *this_lstnr) |
| 4836 | { |
| 4837 | int i; |
| 4838 | |
| 4839 | if (!data || !resp || !this_lstnr) { |
| 4840 | pr_err("listener handle or resp msg is null\n"); |
| 4841 | return -EINVAL; |
| 4842 | } |
| 4843 | |
| 4844 | if (resp->resp_buf_ptr == NULL) { |
| 4845 | pr_err("resp buffer is null\n"); |
| 4846 | return -EINVAL; |
| 4847 | } |
| 4848 | /* validate resp buf length */ |
| 4849 | if ((resp->resp_len == 0) || |
| 4850 | (resp->resp_len > this_lstnr->sb_length)) { |
| 4851 | pr_err("resp buf length %d not valid\n", resp->resp_len); |
| 4852 | return -EINVAL; |
| 4853 | } |
| 4854 | |
| 4855 | if ((uintptr_t)resp->resp_buf_ptr > (ULONG_MAX - resp->resp_len)) { |
| 4856 | pr_err("Integer overflow in resp_len & resp_buf\n"); |
| 4857 | return -EINVAL; |
| 4858 | } |
| 4859 | if ((uintptr_t)this_lstnr->user_virt_sb_base > |
| 4860 | (ULONG_MAX - this_lstnr->sb_length)) { |
| 4861 | pr_err("Integer overflow in user_virt_sb_base & sb_length\n"); |
| 4862 | return -EINVAL; |
| 4863 | } |
| 4864 | /* validate resp buf */ |
| 4865 | if (((uintptr_t)resp->resp_buf_ptr < |
| 4866 | (uintptr_t)this_lstnr->user_virt_sb_base) || |
| 4867 | ((uintptr_t)resp->resp_buf_ptr >= |
| 4868 | ((uintptr_t)this_lstnr->user_virt_sb_base + |
| 4869 | this_lstnr->sb_length)) || |
| 4870 | (((uintptr_t)resp->resp_buf_ptr + resp->resp_len) > |
| 4871 | ((uintptr_t)this_lstnr->user_virt_sb_base + |
| 4872 | this_lstnr->sb_length))) { |
| 4873 | pr_err("resp buf is out of shared buffer region\n"); |
| 4874 | return -EINVAL; |
| 4875 | } |
| 4876 | |
| 4877 | /* validate offsets */ |
| 4878 | for (i = 0; i < MAX_ION_FD; i++) { |
| 4879 | if (resp->ifd_data[i].cmd_buf_offset >= resp->resp_len) { |
| 4880 | pr_err("Invalid offset %d = 0x%x\n", |
| 4881 | i, resp->ifd_data[i].cmd_buf_offset); |
| 4882 | return -EINVAL; |
| 4883 | } |
| 4884 | } |
| 4885 | |
| 4886 | return 0; |
| 4887 | } |
| 4888 | |
| 4889 | static int __qseecom_send_modfd_resp(struct qseecom_dev_handle *data, |
| 4890 | void __user *argp, bool is_64bit_addr) |
| 4891 | { |
| 4892 | struct qseecom_send_modfd_listener_resp resp; |
| 4893 | struct qseecom_registered_listener_list *this_lstnr = NULL; |
| 4894 | |
| 4895 | if (copy_from_user(&resp, argp, sizeof(resp))) { |
| 4896 | pr_err("copy_from_user failed"); |
| 4897 | return -EINVAL; |
| 4898 | } |
| 4899 | |
| 4900 | this_lstnr = __qseecom_find_svc(data->listener.id); |
| 4901 | if (this_lstnr == NULL) |
| 4902 | return -EINVAL; |
| 4903 | |
| 4904 | if (__validate_send_modfd_resp_inputs(data, &resp, this_lstnr)) |
| 4905 | return -EINVAL; |
| 4906 | |
| 4907 | resp.resp_buf_ptr = this_lstnr->sb_virt + |
| 4908 | (uintptr_t)(resp.resp_buf_ptr - this_lstnr->user_virt_sb_base); |
| 4909 | |
| 4910 | if (!is_64bit_addr) |
| 4911 | __qseecom_update_cmd_buf(&resp, false, data); |
| 4912 | else |
| 4913 | __qseecom_update_cmd_buf_64(&resp, false, data); |
| 4914 | qseecom.send_resp_flag = 1; |
| 4915 | this_lstnr->send_resp_flag = 1; |
| 4916 | wake_up_interruptible(&qseecom.send_resp_wq); |
| 4917 | return 0; |
| 4918 | } |
| 4919 | |
| 4920 | static int qseecom_send_modfd_resp(struct qseecom_dev_handle *data, |
| 4921 | void __user *argp) |
| 4922 | { |
| 4923 | return __qseecom_send_modfd_resp(data, argp, false); |
| 4924 | } |
| 4925 | |
| 4926 | static int qseecom_send_modfd_resp_64(struct qseecom_dev_handle *data, |
| 4927 | void __user *argp) |
| 4928 | { |
| 4929 | return __qseecom_send_modfd_resp(data, argp, true); |
| 4930 | } |
| 4931 | |
| 4932 | static int qseecom_get_qseos_version(struct qseecom_dev_handle *data, |
| 4933 | void __user *argp) |
| 4934 | { |
| 4935 | struct qseecom_qseos_version_req req; |
| 4936 | |
| 4937 | if (copy_from_user(&req, argp, sizeof(req))) { |
| 4938 | pr_err("copy_from_user failed"); |
| 4939 | return -EINVAL; |
| 4940 | } |
| 4941 | req.qseos_version = qseecom.qseos_version; |
| 4942 | if (copy_to_user(argp, &req, sizeof(req))) { |
| 4943 | pr_err("copy_to_user failed"); |
| 4944 | return -EINVAL; |
| 4945 | } |
| 4946 | return 0; |
| 4947 | } |
| 4948 | |
| 4949 | static int __qseecom_enable_clk(enum qseecom_ce_hw_instance ce) |
| 4950 | { |
| 4951 | int rc = 0; |
| 4952 | struct qseecom_clk *qclk = NULL; |
| 4953 | |
| 4954 | if (qseecom.no_clock_support) |
| 4955 | return 0; |
| 4956 | |
| 4957 | if (ce == CLK_QSEE) |
| 4958 | qclk = &qseecom.qsee; |
| 4959 | if (ce == CLK_CE_DRV) |
| 4960 | qclk = &qseecom.ce_drv; |
| 4961 | |
| 4962 | if (qclk == NULL) { |
| 4963 | pr_err("CLK type not supported\n"); |
| 4964 | return -EINVAL; |
| 4965 | } |
| 4966 | mutex_lock(&clk_access_lock); |
| 4967 | |
| 4968 | if (qclk->clk_access_cnt == ULONG_MAX) { |
| 4969 | pr_err("clk_access_cnt beyond limitation\n"); |
| 4970 | goto err; |
| 4971 | } |
| 4972 | if (qclk->clk_access_cnt > 0) { |
| 4973 | qclk->clk_access_cnt++; |
| 4974 | mutex_unlock(&clk_access_lock); |
| 4975 | return rc; |
| 4976 | } |
| 4977 | |
| 4978 | /* Enable CE core clk */ |
| 4979 | if (qclk->ce_core_clk != NULL) { |
| 4980 | rc = clk_prepare_enable(qclk->ce_core_clk); |
| 4981 | if (rc) { |
| 4982 | pr_err("Unable to enable/prepare CE core clk\n"); |
| 4983 | goto err; |
| 4984 | } |
| 4985 | } |
| 4986 | /* Enable CE clk */ |
| 4987 | if (qclk->ce_clk != NULL) { |
| 4988 | rc = clk_prepare_enable(qclk->ce_clk); |
| 4989 | if (rc) { |
| 4990 | pr_err("Unable to enable/prepare CE iface clk\n"); |
| 4991 | goto ce_clk_err; |
| 4992 | } |
| 4993 | } |
| 4994 | /* Enable AXI clk */ |
| 4995 | if (qclk->ce_bus_clk != NULL) { |
| 4996 | rc = clk_prepare_enable(qclk->ce_bus_clk); |
| 4997 | if (rc) { |
| 4998 | pr_err("Unable to enable/prepare CE bus clk\n"); |
| 4999 | goto ce_bus_clk_err; |
| 5000 | } |
| 5001 | } |
| 5002 | qclk->clk_access_cnt++; |
| 5003 | mutex_unlock(&clk_access_lock); |
| 5004 | return 0; |
| 5005 | |
| 5006 | ce_bus_clk_err: |
| 5007 | if (qclk->ce_clk != NULL) |
| 5008 | clk_disable_unprepare(qclk->ce_clk); |
| 5009 | ce_clk_err: |
| 5010 | if (qclk->ce_core_clk != NULL) |
| 5011 | clk_disable_unprepare(qclk->ce_core_clk); |
| 5012 | err: |
| 5013 | mutex_unlock(&clk_access_lock); |
| 5014 | return -EIO; |
| 5015 | } |
| 5016 | |
| 5017 | static void __qseecom_disable_clk(enum qseecom_ce_hw_instance ce) |
| 5018 | { |
| 5019 | struct qseecom_clk *qclk; |
| 5020 | |
| 5021 | if (qseecom.no_clock_support) |
| 5022 | return; |
| 5023 | |
| 5024 | if (ce == CLK_QSEE) |
| 5025 | qclk = &qseecom.qsee; |
| 5026 | else |
| 5027 | qclk = &qseecom.ce_drv; |
| 5028 | |
| 5029 | mutex_lock(&clk_access_lock); |
| 5030 | |
| 5031 | if (qclk->clk_access_cnt == 0) { |
| 5032 | mutex_unlock(&clk_access_lock); |
| 5033 | return; |
| 5034 | } |
| 5035 | |
| 5036 | if (qclk->clk_access_cnt == 1) { |
| 5037 | if (qclk->ce_clk != NULL) |
| 5038 | clk_disable_unprepare(qclk->ce_clk); |
| 5039 | if (qclk->ce_core_clk != NULL) |
| 5040 | clk_disable_unprepare(qclk->ce_core_clk); |
| 5041 | if (qclk->ce_bus_clk != NULL) |
| 5042 | clk_disable_unprepare(qclk->ce_bus_clk); |
| 5043 | } |
| 5044 | qclk->clk_access_cnt--; |
| 5045 | mutex_unlock(&clk_access_lock); |
| 5046 | } |
| 5047 | |
| 5048 | static int qsee_vote_for_clock(struct qseecom_dev_handle *data, |
| 5049 | int32_t clk_type) |
| 5050 | { |
| 5051 | int ret = 0; |
| 5052 | struct qseecom_clk *qclk; |
| 5053 | |
| 5054 | if (qseecom.no_clock_support) |
| 5055 | return 0; |
| 5056 | |
| 5057 | qclk = &qseecom.qsee; |
| 5058 | if (!qseecom.qsee_perf_client) |
| 5059 | return ret; |
| 5060 | |
| 5061 | switch (clk_type) { |
| 5062 | case CLK_DFAB: |
| 5063 | mutex_lock(&qsee_bw_mutex); |
| 5064 | if (!qseecom.qsee_bw_count) { |
| 5065 | if (qseecom.qsee_sfpb_bw_count > 0) |
| 5066 | ret = msm_bus_scale_client_update_request( |
| 5067 | qseecom.qsee_perf_client, 3); |
| 5068 | else { |
| 5069 | if (qclk->ce_core_src_clk != NULL) |
| 5070 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5071 | if (!ret) { |
| 5072 | ret = |
| 5073 | msm_bus_scale_client_update_request( |
| 5074 | qseecom.qsee_perf_client, 1); |
| 5075 | if ((ret) && |
| 5076 | (qclk->ce_core_src_clk != NULL)) |
| 5077 | __qseecom_disable_clk(CLK_QSEE); |
| 5078 | } |
| 5079 | } |
| 5080 | if (ret) |
| 5081 | pr_err("DFAB Bandwidth req failed (%d)\n", |
| 5082 | ret); |
| 5083 | else { |
| 5084 | qseecom.qsee_bw_count++; |
| 5085 | data->perf_enabled = true; |
| 5086 | } |
| 5087 | } else { |
| 5088 | qseecom.qsee_bw_count++; |
| 5089 | data->perf_enabled = true; |
| 5090 | } |
| 5091 | mutex_unlock(&qsee_bw_mutex); |
| 5092 | break; |
| 5093 | case CLK_SFPB: |
| 5094 | mutex_lock(&qsee_bw_mutex); |
| 5095 | if (!qseecom.qsee_sfpb_bw_count) { |
| 5096 | if (qseecom.qsee_bw_count > 0) |
| 5097 | ret = msm_bus_scale_client_update_request( |
| 5098 | qseecom.qsee_perf_client, 3); |
| 5099 | else { |
| 5100 | if (qclk->ce_core_src_clk != NULL) |
| 5101 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5102 | if (!ret) { |
| 5103 | ret = |
| 5104 | msm_bus_scale_client_update_request( |
| 5105 | qseecom.qsee_perf_client, 2); |
| 5106 | if ((ret) && |
| 5107 | (qclk->ce_core_src_clk != NULL)) |
| 5108 | __qseecom_disable_clk(CLK_QSEE); |
| 5109 | } |
| 5110 | } |
| 5111 | |
| 5112 | if (ret) |
| 5113 | pr_err("SFPB Bandwidth req failed (%d)\n", |
| 5114 | ret); |
| 5115 | else { |
| 5116 | qseecom.qsee_sfpb_bw_count++; |
| 5117 | data->fast_load_enabled = true; |
| 5118 | } |
| 5119 | } else { |
| 5120 | qseecom.qsee_sfpb_bw_count++; |
| 5121 | data->fast_load_enabled = true; |
| 5122 | } |
| 5123 | mutex_unlock(&qsee_bw_mutex); |
| 5124 | break; |
| 5125 | default: |
| 5126 | pr_err("Clock type not defined\n"); |
| 5127 | break; |
| 5128 | } |
| 5129 | return ret; |
| 5130 | } |
| 5131 | |
| 5132 | static void qsee_disable_clock_vote(struct qseecom_dev_handle *data, |
| 5133 | int32_t clk_type) |
| 5134 | { |
| 5135 | int32_t ret = 0; |
| 5136 | struct qseecom_clk *qclk; |
| 5137 | |
| 5138 | qclk = &qseecom.qsee; |
| 5139 | |
| 5140 | if (qseecom.no_clock_support) |
| 5141 | return; |
| 5142 | if (!qseecom.qsee_perf_client) |
| 5143 | return; |
| 5144 | |
| 5145 | switch (clk_type) { |
| 5146 | case CLK_DFAB: |
| 5147 | mutex_lock(&qsee_bw_mutex); |
| 5148 | if (qseecom.qsee_bw_count == 0) { |
| 5149 | pr_err("Client error.Extra call to disable DFAB clk\n"); |
| 5150 | mutex_unlock(&qsee_bw_mutex); |
| 5151 | return; |
| 5152 | } |
| 5153 | |
| 5154 | if (qseecom.qsee_bw_count == 1) { |
| 5155 | if (qseecom.qsee_sfpb_bw_count > 0) |
| 5156 | ret = msm_bus_scale_client_update_request( |
| 5157 | qseecom.qsee_perf_client, 2); |
| 5158 | else { |
| 5159 | ret = msm_bus_scale_client_update_request( |
| 5160 | qseecom.qsee_perf_client, 0); |
| 5161 | if ((!ret) && (qclk->ce_core_src_clk != NULL)) |
| 5162 | __qseecom_disable_clk(CLK_QSEE); |
| 5163 | } |
| 5164 | if (ret) |
| 5165 | pr_err("SFPB Bandwidth req fail (%d)\n", |
| 5166 | ret); |
| 5167 | else { |
| 5168 | qseecom.qsee_bw_count--; |
| 5169 | data->perf_enabled = false; |
| 5170 | } |
| 5171 | } else { |
| 5172 | qseecom.qsee_bw_count--; |
| 5173 | data->perf_enabled = false; |
| 5174 | } |
| 5175 | mutex_unlock(&qsee_bw_mutex); |
| 5176 | break; |
| 5177 | case CLK_SFPB: |
| 5178 | mutex_lock(&qsee_bw_mutex); |
| 5179 | if (qseecom.qsee_sfpb_bw_count == 0) { |
| 5180 | pr_err("Client error.Extra call to disable SFPB clk\n"); |
| 5181 | mutex_unlock(&qsee_bw_mutex); |
| 5182 | return; |
| 5183 | } |
| 5184 | if (qseecom.qsee_sfpb_bw_count == 1) { |
| 5185 | if (qseecom.qsee_bw_count > 0) |
| 5186 | ret = msm_bus_scale_client_update_request( |
| 5187 | qseecom.qsee_perf_client, 1); |
| 5188 | else { |
| 5189 | ret = msm_bus_scale_client_update_request( |
| 5190 | qseecom.qsee_perf_client, 0); |
| 5191 | if ((!ret) && (qclk->ce_core_src_clk != NULL)) |
| 5192 | __qseecom_disable_clk(CLK_QSEE); |
| 5193 | } |
| 5194 | if (ret) |
| 5195 | pr_err("SFPB Bandwidth req fail (%d)\n", |
| 5196 | ret); |
| 5197 | else { |
| 5198 | qseecom.qsee_sfpb_bw_count--; |
| 5199 | data->fast_load_enabled = false; |
| 5200 | } |
| 5201 | } else { |
| 5202 | qseecom.qsee_sfpb_bw_count--; |
| 5203 | data->fast_load_enabled = false; |
| 5204 | } |
| 5205 | mutex_unlock(&qsee_bw_mutex); |
| 5206 | break; |
| 5207 | default: |
| 5208 | pr_err("Clock type not defined\n"); |
| 5209 | break; |
| 5210 | } |
| 5211 | |
| 5212 | } |
| 5213 | |
| 5214 | static int qseecom_load_external_elf(struct qseecom_dev_handle *data, |
| 5215 | void __user *argp) |
| 5216 | { |
| 5217 | struct ion_handle *ihandle; /* Ion handle */ |
| 5218 | struct qseecom_load_img_req load_img_req; |
| 5219 | int uret = 0; |
| 5220 | int ret; |
| 5221 | ion_phys_addr_t pa = 0; |
| 5222 | size_t len; |
| 5223 | struct qseecom_load_app_ireq load_req; |
| 5224 | struct qseecom_load_app_64bit_ireq load_req_64bit; |
| 5225 | struct qseecom_command_scm_resp resp; |
| 5226 | void *cmd_buf = NULL; |
| 5227 | size_t cmd_len; |
| 5228 | /* Copy the relevant information needed for loading the image */ |
| 5229 | if (copy_from_user(&load_img_req, |
| 5230 | (void __user *)argp, |
| 5231 | sizeof(struct qseecom_load_img_req))) { |
| 5232 | pr_err("copy_from_user failed\n"); |
| 5233 | return -EFAULT; |
| 5234 | } |
| 5235 | |
| 5236 | /* Get the handle of the shared fd */ |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 5237 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5238 | load_img_req.ifd_data_fd); |
| 5239 | if (IS_ERR_OR_NULL(ihandle)) { |
| 5240 | pr_err("Ion client could not retrieve the handle\n"); |
| 5241 | return -ENOMEM; |
| 5242 | } |
| 5243 | |
| 5244 | /* Get the physical address of the ION BUF */ |
| 5245 | ret = ion_phys(qseecom.ion_clnt, ihandle, &pa, &len); |
| 5246 | if (ret) { |
| 5247 | pr_err("Cannot get phys_addr for the Ion Client, ret = %d\n", |
| 5248 | ret); |
| 5249 | return ret; |
| 5250 | } |
| 5251 | if (load_img_req.mdt_len > len || load_img_req.img_len > len) { |
| 5252 | pr_err("ion len %zu is smaller than mdt_len %u or img_len %u\n", |
| 5253 | len, load_img_req.mdt_len, |
| 5254 | load_img_req.img_len); |
| 5255 | return ret; |
| 5256 | } |
| 5257 | /* Populate the structure for sending scm call to load image */ |
| 5258 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 5259 | load_req.qsee_cmd_id = QSEOS_LOAD_EXTERNAL_ELF_COMMAND; |
| 5260 | load_req.mdt_len = load_img_req.mdt_len; |
| 5261 | load_req.img_len = load_img_req.img_len; |
| 5262 | load_req.phy_addr = (uint32_t)pa; |
| 5263 | cmd_buf = (void *)&load_req; |
| 5264 | cmd_len = sizeof(struct qseecom_load_app_ireq); |
| 5265 | } else { |
| 5266 | load_req_64bit.qsee_cmd_id = QSEOS_LOAD_EXTERNAL_ELF_COMMAND; |
| 5267 | load_req_64bit.mdt_len = load_img_req.mdt_len; |
| 5268 | load_req_64bit.img_len = load_img_req.img_len; |
| 5269 | load_req_64bit.phy_addr = (uint64_t)pa; |
| 5270 | cmd_buf = (void *)&load_req_64bit; |
| 5271 | cmd_len = sizeof(struct qseecom_load_app_64bit_ireq); |
| 5272 | } |
| 5273 | |
| 5274 | if (qseecom.support_bus_scaling) { |
| 5275 | mutex_lock(&qsee_bw_mutex); |
| 5276 | ret = __qseecom_register_bus_bandwidth_needs(data, MEDIUM); |
| 5277 | mutex_unlock(&qsee_bw_mutex); |
| 5278 | if (ret) { |
| 5279 | ret = -EIO; |
| 5280 | goto exit_cpu_restore; |
| 5281 | } |
| 5282 | } |
| 5283 | |
| 5284 | /* Vote for the SFPB clock */ |
| 5285 | ret = __qseecom_enable_clk_scale_up(data); |
| 5286 | if (ret) { |
| 5287 | ret = -EIO; |
| 5288 | goto exit_register_bus_bandwidth_needs; |
| 5289 | } |
| 5290 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, ihandle, NULL, len, |
| 5291 | ION_IOC_CLEAN_INV_CACHES); |
| 5292 | if (ret) { |
| 5293 | pr_err("cache operation failed %d\n", ret); |
| 5294 | goto exit_disable_clock; |
| 5295 | } |
| 5296 | /* SCM_CALL to load the external elf */ |
| 5297 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, cmd_buf, cmd_len, |
| 5298 | &resp, sizeof(resp)); |
| 5299 | if (ret) { |
| 5300 | pr_err("scm_call to load failed : ret %d\n", |
| 5301 | ret); |
| 5302 | ret = -EFAULT; |
| 5303 | goto exit_disable_clock; |
| 5304 | } |
| 5305 | |
| 5306 | switch (resp.result) { |
| 5307 | case QSEOS_RESULT_SUCCESS: |
| 5308 | break; |
| 5309 | case QSEOS_RESULT_INCOMPLETE: |
| 5310 | pr_err("%s: qseos result incomplete\n", __func__); |
| 5311 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5312 | if (ret) |
| 5313 | pr_err("process_incomplete_cmd failed: err: %d\n", ret); |
| 5314 | break; |
| 5315 | case QSEOS_RESULT_FAILURE: |
| 5316 | pr_err("scm_call rsp.result is QSEOS_RESULT_FAILURE\n"); |
| 5317 | ret = -EFAULT; |
| 5318 | break; |
| 5319 | default: |
| 5320 | pr_err("scm_call response result %d not supported\n", |
| 5321 | resp.result); |
| 5322 | ret = -EFAULT; |
| 5323 | break; |
| 5324 | } |
| 5325 | |
| 5326 | exit_disable_clock: |
| 5327 | __qseecom_disable_clk_scale_down(data); |
| 5328 | |
| 5329 | exit_register_bus_bandwidth_needs: |
| 5330 | if (qseecom.support_bus_scaling) { |
| 5331 | mutex_lock(&qsee_bw_mutex); |
| 5332 | uret = qseecom_unregister_bus_bandwidth_needs(data); |
| 5333 | mutex_unlock(&qsee_bw_mutex); |
| 5334 | if (uret) |
| 5335 | pr_err("Failed to unregister bus bw needs %d, scm_call ret %d\n", |
| 5336 | uret, ret); |
| 5337 | } |
| 5338 | |
| 5339 | exit_cpu_restore: |
| 5340 | /* Deallocate the handle */ |
| 5341 | if (!IS_ERR_OR_NULL(ihandle)) |
| 5342 | ion_free(qseecom.ion_clnt, ihandle); |
| 5343 | return ret; |
| 5344 | } |
| 5345 | |
| 5346 | static int qseecom_unload_external_elf(struct qseecom_dev_handle *data) |
| 5347 | { |
| 5348 | int ret = 0; |
| 5349 | struct qseecom_command_scm_resp resp; |
| 5350 | struct qseecom_unload_app_ireq req; |
| 5351 | |
| 5352 | /* unavailable client app */ |
| 5353 | data->type = QSEECOM_UNAVAILABLE_CLIENT_APP; |
| 5354 | |
| 5355 | /* Populate the structure for sending scm call to unload image */ |
| 5356 | req.qsee_cmd_id = QSEOS_UNLOAD_EXTERNAL_ELF_COMMAND; |
| 5357 | |
| 5358 | /* SCM_CALL to unload the external elf */ |
| 5359 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, &req, |
| 5360 | sizeof(struct qseecom_unload_app_ireq), |
| 5361 | &resp, sizeof(resp)); |
| 5362 | if (ret) { |
| 5363 | pr_err("scm_call to unload failed : ret %d\n", |
| 5364 | ret); |
| 5365 | ret = -EFAULT; |
| 5366 | goto qseecom_unload_external_elf_scm_err; |
| 5367 | } |
| 5368 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 5369 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5370 | if (ret) |
| 5371 | pr_err("process_incomplete_cmd fail err: %d\n", |
| 5372 | ret); |
| 5373 | } else { |
| 5374 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 5375 | pr_err("scm_call to unload image failed resp.result =%d\n", |
| 5376 | resp.result); |
| 5377 | ret = -EFAULT; |
| 5378 | } |
| 5379 | } |
| 5380 | |
| 5381 | qseecom_unload_external_elf_scm_err: |
| 5382 | |
| 5383 | return ret; |
| 5384 | } |
| 5385 | |
| 5386 | static int qseecom_query_app_loaded(struct qseecom_dev_handle *data, |
| 5387 | void __user *argp) |
| 5388 | { |
| 5389 | |
| 5390 | int32_t ret; |
| 5391 | struct qseecom_qseos_app_load_query query_req; |
| 5392 | struct qseecom_check_app_ireq req; |
| 5393 | struct qseecom_registered_app_list *entry = NULL; |
| 5394 | unsigned long flags = 0; |
| 5395 | uint32_t app_arch = 0, app_id = 0; |
| 5396 | bool found_app = false; |
| 5397 | |
| 5398 | /* Copy the relevant information needed for loading the image */ |
| 5399 | if (copy_from_user(&query_req, |
| 5400 | (void __user *)argp, |
| 5401 | sizeof(struct qseecom_qseos_app_load_query))) { |
| 5402 | pr_err("copy_from_user failed\n"); |
| 5403 | return -EFAULT; |
| 5404 | } |
| 5405 | |
| 5406 | req.qsee_cmd_id = QSEOS_APP_LOOKUP_COMMAND; |
| 5407 | query_req.app_name[MAX_APP_NAME_SIZE-1] = '\0'; |
| 5408 | strlcpy(req.app_name, query_req.app_name, MAX_APP_NAME_SIZE); |
| 5409 | |
| 5410 | ret = __qseecom_check_app_exists(req, &app_id); |
| 5411 | if (ret) { |
| 5412 | pr_err(" scm call to check if app is loaded failed"); |
| 5413 | return ret; /* scm call failed */ |
| 5414 | } |
| 5415 | if (app_id) { |
| 5416 | pr_debug("App id %d (%s) already exists\n", app_id, |
| 5417 | (char *)(req.app_name)); |
| 5418 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 5419 | list_for_each_entry(entry, |
| 5420 | &qseecom.registered_app_list_head, list){ |
| 5421 | if (entry->app_id == app_id) { |
| 5422 | app_arch = entry->app_arch; |
| 5423 | entry->ref_cnt++; |
| 5424 | found_app = true; |
| 5425 | break; |
| 5426 | } |
| 5427 | } |
| 5428 | spin_unlock_irqrestore( |
| 5429 | &qseecom.registered_app_list_lock, flags); |
| 5430 | data->client.app_id = app_id; |
| 5431 | query_req.app_id = app_id; |
| 5432 | if (app_arch) { |
| 5433 | data->client.app_arch = app_arch; |
| 5434 | query_req.app_arch = app_arch; |
| 5435 | } else { |
| 5436 | data->client.app_arch = 0; |
| 5437 | query_req.app_arch = 0; |
| 5438 | } |
| 5439 | strlcpy(data->client.app_name, query_req.app_name, |
| 5440 | MAX_APP_NAME_SIZE); |
| 5441 | /* |
| 5442 | * If app was loaded by appsbl before and was not registered, |
| 5443 | * regiser this app now. |
| 5444 | */ |
| 5445 | if (!found_app) { |
| 5446 | pr_debug("Register app %d [%s] which was loaded before\n", |
| 5447 | ret, (char *)query_req.app_name); |
| 5448 | entry = kmalloc(sizeof(*entry), GFP_KERNEL); |
| 5449 | if (!entry) { |
| 5450 | pr_err("kmalloc for app entry failed\n"); |
| 5451 | return -ENOMEM; |
| 5452 | } |
| 5453 | entry->app_id = app_id; |
| 5454 | entry->ref_cnt = 1; |
| 5455 | entry->app_arch = data->client.app_arch; |
| 5456 | strlcpy(entry->app_name, data->client.app_name, |
| 5457 | MAX_APP_NAME_SIZE); |
| 5458 | entry->app_blocked = false; |
| 5459 | entry->blocked_on_listener_id = 0; |
| 5460 | spin_lock_irqsave(&qseecom.registered_app_list_lock, |
| 5461 | flags); |
| 5462 | list_add_tail(&entry->list, |
| 5463 | &qseecom.registered_app_list_head); |
| 5464 | spin_unlock_irqrestore( |
| 5465 | &qseecom.registered_app_list_lock, flags); |
| 5466 | } |
| 5467 | if (copy_to_user(argp, &query_req, sizeof(query_req))) { |
| 5468 | pr_err("copy_to_user failed\n"); |
| 5469 | return -EFAULT; |
| 5470 | } |
| 5471 | return -EEXIST; /* app already loaded */ |
| 5472 | } else { |
| 5473 | return 0; /* app not loaded */ |
| 5474 | } |
| 5475 | } |
| 5476 | |
| 5477 | static int __qseecom_get_ce_pipe_info( |
| 5478 | enum qseecom_key_management_usage_type usage, |
| 5479 | uint32_t *pipe, uint32_t **ce_hw, uint32_t unit) |
| 5480 | { |
| 5481 | int ret = -EINVAL; |
| 5482 | int i, j; |
| 5483 | struct qseecom_ce_info_use *p = NULL; |
| 5484 | int total = 0; |
| 5485 | struct qseecom_ce_pipe_entry *pcepipe; |
| 5486 | |
| 5487 | switch (usage) { |
| 5488 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 5489 | case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION: |
| 5490 | case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION: |
| 5491 | if (qseecom.support_fde) { |
| 5492 | p = qseecom.ce_info.fde; |
| 5493 | total = qseecom.ce_info.num_fde; |
| 5494 | } else { |
| 5495 | pr_err("system does not support fde\n"); |
| 5496 | return -EINVAL; |
| 5497 | } |
| 5498 | break; |
| 5499 | case QSEOS_KM_USAGE_FILE_ENCRYPTION: |
| 5500 | if (qseecom.support_pfe) { |
| 5501 | p = qseecom.ce_info.pfe; |
| 5502 | total = qseecom.ce_info.num_pfe; |
| 5503 | } else { |
| 5504 | pr_err("system does not support pfe\n"); |
| 5505 | return -EINVAL; |
| 5506 | } |
| 5507 | break; |
| 5508 | default: |
| 5509 | pr_err("unsupported usage %d\n", usage); |
| 5510 | return -EINVAL; |
| 5511 | } |
| 5512 | |
| 5513 | for (j = 0; j < total; j++) { |
| 5514 | if (p->unit_num == unit) { |
| 5515 | pcepipe = p->ce_pipe_entry; |
| 5516 | for (i = 0; i < p->num_ce_pipe_entries; i++) { |
| 5517 | (*ce_hw)[i] = pcepipe->ce_num; |
| 5518 | *pipe = pcepipe->ce_pipe_pair; |
| 5519 | pcepipe++; |
| 5520 | } |
| 5521 | ret = 0; |
| 5522 | break; |
| 5523 | } |
| 5524 | p++; |
| 5525 | } |
| 5526 | return ret; |
| 5527 | } |
| 5528 | |
| 5529 | static int __qseecom_generate_and_save_key(struct qseecom_dev_handle *data, |
| 5530 | enum qseecom_key_management_usage_type usage, |
| 5531 | struct qseecom_key_generate_ireq *ireq) |
| 5532 | { |
| 5533 | struct qseecom_command_scm_resp resp; |
| 5534 | int ret; |
| 5535 | |
| 5536 | if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 5537 | usage >= QSEOS_KM_USAGE_MAX) { |
| 5538 | pr_err("Error:: unsupported usage %d\n", usage); |
| 5539 | return -EFAULT; |
| 5540 | } |
| 5541 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5542 | if (ret) |
| 5543 | return ret; |
| 5544 | |
| 5545 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 5546 | ireq, sizeof(struct qseecom_key_generate_ireq), |
| 5547 | &resp, sizeof(resp)); |
| 5548 | if (ret) { |
| 5549 | if (ret == -EINVAL && |
| 5550 | resp.result == QSEOS_RESULT_FAIL_KEY_ID_EXISTS) { |
| 5551 | pr_debug("Key ID exists.\n"); |
| 5552 | ret = 0; |
| 5553 | } else { |
| 5554 | pr_err("scm call to generate key failed : %d\n", ret); |
| 5555 | ret = -EFAULT; |
| 5556 | } |
| 5557 | goto generate_key_exit; |
| 5558 | } |
| 5559 | |
| 5560 | switch (resp.result) { |
| 5561 | case QSEOS_RESULT_SUCCESS: |
| 5562 | break; |
| 5563 | case QSEOS_RESULT_FAIL_KEY_ID_EXISTS: |
| 5564 | pr_debug("Key ID exists.\n"); |
| 5565 | break; |
| 5566 | case QSEOS_RESULT_INCOMPLETE: |
| 5567 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5568 | if (ret) { |
| 5569 | if (resp.result == QSEOS_RESULT_FAIL_KEY_ID_EXISTS) { |
| 5570 | pr_debug("Key ID exists.\n"); |
| 5571 | ret = 0; |
| 5572 | } else { |
| 5573 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 5574 | resp.result); |
| 5575 | } |
| 5576 | } |
| 5577 | break; |
| 5578 | case QSEOS_RESULT_FAILURE: |
| 5579 | default: |
| 5580 | pr_err("gen key scm call failed resp.result %d\n", resp.result); |
| 5581 | ret = -EINVAL; |
| 5582 | break; |
| 5583 | } |
| 5584 | generate_key_exit: |
| 5585 | __qseecom_disable_clk(CLK_QSEE); |
| 5586 | return ret; |
| 5587 | } |
| 5588 | |
| 5589 | static int __qseecom_delete_saved_key(struct qseecom_dev_handle *data, |
| 5590 | enum qseecom_key_management_usage_type usage, |
| 5591 | struct qseecom_key_delete_ireq *ireq) |
| 5592 | { |
| 5593 | struct qseecom_command_scm_resp resp; |
| 5594 | int ret; |
| 5595 | |
| 5596 | if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 5597 | usage >= QSEOS_KM_USAGE_MAX) { |
| 5598 | pr_err("Error:: unsupported usage %d\n", usage); |
| 5599 | return -EFAULT; |
| 5600 | } |
| 5601 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5602 | if (ret) |
| 5603 | return ret; |
| 5604 | |
| 5605 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 5606 | ireq, sizeof(struct qseecom_key_delete_ireq), |
| 5607 | &resp, sizeof(struct qseecom_command_scm_resp)); |
| 5608 | if (ret) { |
| 5609 | if (ret == -EINVAL && |
| 5610 | resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) { |
| 5611 | pr_debug("Max attempts to input password reached.\n"); |
| 5612 | ret = -ERANGE; |
| 5613 | } else { |
| 5614 | pr_err("scm call to delete key failed : %d\n", ret); |
| 5615 | ret = -EFAULT; |
| 5616 | } |
| 5617 | goto del_key_exit; |
| 5618 | } |
| 5619 | |
| 5620 | switch (resp.result) { |
| 5621 | case QSEOS_RESULT_SUCCESS: |
| 5622 | break; |
| 5623 | case QSEOS_RESULT_INCOMPLETE: |
| 5624 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5625 | if (ret) { |
| 5626 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 5627 | resp.result); |
| 5628 | if (resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) { |
| 5629 | pr_debug("Max attempts to input password reached.\n"); |
| 5630 | ret = -ERANGE; |
| 5631 | } |
| 5632 | } |
| 5633 | break; |
| 5634 | case QSEOS_RESULT_FAIL_MAX_ATTEMPT: |
| 5635 | pr_debug("Max attempts to input password reached.\n"); |
| 5636 | ret = -ERANGE; |
| 5637 | break; |
| 5638 | case QSEOS_RESULT_FAILURE: |
| 5639 | default: |
| 5640 | pr_err("Delete key scm call failed resp.result %d\n", |
| 5641 | resp.result); |
| 5642 | ret = -EINVAL; |
| 5643 | break; |
| 5644 | } |
| 5645 | del_key_exit: |
| 5646 | __qseecom_disable_clk(CLK_QSEE); |
| 5647 | return ret; |
| 5648 | } |
| 5649 | |
| 5650 | static int __qseecom_set_clear_ce_key(struct qseecom_dev_handle *data, |
| 5651 | enum qseecom_key_management_usage_type usage, |
| 5652 | struct qseecom_key_select_ireq *ireq) |
| 5653 | { |
| 5654 | struct qseecom_command_scm_resp resp; |
| 5655 | int ret; |
| 5656 | |
| 5657 | if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 5658 | usage >= QSEOS_KM_USAGE_MAX) { |
| 5659 | pr_err("Error:: unsupported usage %d\n", usage); |
| 5660 | return -EFAULT; |
| 5661 | } |
| 5662 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5663 | if (ret) |
| 5664 | return ret; |
| 5665 | |
| 5666 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) { |
| 5667 | ret = __qseecom_enable_clk(CLK_CE_DRV); |
| 5668 | if (ret) |
| 5669 | return ret; |
| 5670 | } |
| 5671 | |
| 5672 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 5673 | ireq, sizeof(struct qseecom_key_select_ireq), |
| 5674 | &resp, sizeof(struct qseecom_command_scm_resp)); |
| 5675 | if (ret) { |
| 5676 | if (ret == -EINVAL && |
| 5677 | resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) { |
| 5678 | pr_debug("Max attempts to input password reached.\n"); |
| 5679 | ret = -ERANGE; |
| 5680 | } else if (ret == -EINVAL && |
| 5681 | resp.result == QSEOS_RESULT_FAIL_PENDING_OPERATION) { |
| 5682 | pr_debug("Set Key operation under processing...\n"); |
| 5683 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5684 | } else { |
| 5685 | pr_err("scm call to set QSEOS_PIPE_ENC key failed : %d\n", |
| 5686 | ret); |
| 5687 | ret = -EFAULT; |
| 5688 | } |
| 5689 | goto set_key_exit; |
| 5690 | } |
| 5691 | |
| 5692 | switch (resp.result) { |
| 5693 | case QSEOS_RESULT_SUCCESS: |
| 5694 | break; |
| 5695 | case QSEOS_RESULT_INCOMPLETE: |
| 5696 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5697 | if (ret) { |
| 5698 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 5699 | resp.result); |
| 5700 | if (resp.result == |
| 5701 | QSEOS_RESULT_FAIL_PENDING_OPERATION) { |
| 5702 | pr_debug("Set Key operation under processing...\n"); |
| 5703 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5704 | } |
| 5705 | if (resp.result == QSEOS_RESULT_FAIL_MAX_ATTEMPT) { |
| 5706 | pr_debug("Max attempts to input password reached.\n"); |
| 5707 | ret = -ERANGE; |
| 5708 | } |
| 5709 | } |
| 5710 | break; |
| 5711 | case QSEOS_RESULT_FAIL_MAX_ATTEMPT: |
| 5712 | pr_debug("Max attempts to input password reached.\n"); |
| 5713 | ret = -ERANGE; |
| 5714 | break; |
| 5715 | case QSEOS_RESULT_FAIL_PENDING_OPERATION: |
| 5716 | pr_debug("Set Key operation under processing...\n"); |
| 5717 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5718 | break; |
| 5719 | case QSEOS_RESULT_FAILURE: |
| 5720 | default: |
| 5721 | pr_err("Set key scm call failed resp.result %d\n", resp.result); |
| 5722 | ret = -EINVAL; |
| 5723 | break; |
| 5724 | } |
| 5725 | set_key_exit: |
| 5726 | __qseecom_disable_clk(CLK_QSEE); |
| 5727 | if (qseecom.qsee.instance != qseecom.ce_drv.instance) |
| 5728 | __qseecom_disable_clk(CLK_CE_DRV); |
| 5729 | return ret; |
| 5730 | } |
| 5731 | |
| 5732 | static int __qseecom_update_current_key_user_info( |
| 5733 | struct qseecom_dev_handle *data, |
| 5734 | enum qseecom_key_management_usage_type usage, |
| 5735 | struct qseecom_key_userinfo_update_ireq *ireq) |
| 5736 | { |
| 5737 | struct qseecom_command_scm_resp resp; |
| 5738 | int ret; |
| 5739 | |
| 5740 | if (usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 5741 | usage >= QSEOS_KM_USAGE_MAX) { |
| 5742 | pr_err("Error:: unsupported usage %d\n", usage); |
| 5743 | return -EFAULT; |
| 5744 | } |
| 5745 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 5746 | if (ret) |
| 5747 | return ret; |
| 5748 | |
| 5749 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 5750 | ireq, sizeof(struct qseecom_key_userinfo_update_ireq), |
| 5751 | &resp, sizeof(struct qseecom_command_scm_resp)); |
| 5752 | if (ret) { |
| 5753 | if (ret == -EINVAL && |
| 5754 | resp.result == QSEOS_RESULT_FAIL_PENDING_OPERATION) { |
| 5755 | pr_debug("Set Key operation under processing...\n"); |
| 5756 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5757 | } else { |
| 5758 | pr_err("scm call to update key userinfo failed: %d\n", |
| 5759 | ret); |
| 5760 | __qseecom_disable_clk(CLK_QSEE); |
| 5761 | return -EFAULT; |
| 5762 | } |
| 5763 | } |
| 5764 | |
| 5765 | switch (resp.result) { |
| 5766 | case QSEOS_RESULT_SUCCESS: |
| 5767 | break; |
| 5768 | case QSEOS_RESULT_INCOMPLETE: |
| 5769 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 5770 | if (resp.result == |
| 5771 | QSEOS_RESULT_FAIL_PENDING_OPERATION) { |
| 5772 | pr_debug("Set Key operation under processing...\n"); |
| 5773 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5774 | } |
| 5775 | if (ret) |
| 5776 | pr_err("process_incomplete_cmd FAILED, resp.result %d\n", |
| 5777 | resp.result); |
| 5778 | break; |
| 5779 | case QSEOS_RESULT_FAIL_PENDING_OPERATION: |
| 5780 | pr_debug("Update Key operation under processing...\n"); |
| 5781 | ret = QSEOS_RESULT_FAIL_PENDING_OPERATION; |
| 5782 | break; |
| 5783 | case QSEOS_RESULT_FAILURE: |
| 5784 | default: |
| 5785 | pr_err("Set key scm call failed resp.result %d\n", resp.result); |
| 5786 | ret = -EINVAL; |
| 5787 | break; |
| 5788 | } |
| 5789 | |
| 5790 | __qseecom_disable_clk(CLK_QSEE); |
| 5791 | return ret; |
| 5792 | } |
| 5793 | |
| 5794 | |
| 5795 | static int qseecom_enable_ice_setup(int usage) |
| 5796 | { |
| 5797 | int ret = 0; |
| 5798 | |
| 5799 | if (usage == QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) |
| 5800 | ret = qcom_ice_setup_ice_hw("ufs", true); |
| 5801 | else if (usage == QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) |
| 5802 | ret = qcom_ice_setup_ice_hw("sdcc", true); |
| 5803 | |
| 5804 | return ret; |
| 5805 | } |
| 5806 | |
| 5807 | static int qseecom_disable_ice_setup(int usage) |
| 5808 | { |
| 5809 | int ret = 0; |
| 5810 | |
| 5811 | if (usage == QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) |
| 5812 | ret = qcom_ice_setup_ice_hw("ufs", false); |
| 5813 | else if (usage == QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) |
| 5814 | ret = qcom_ice_setup_ice_hw("sdcc", false); |
| 5815 | |
| 5816 | return ret; |
| 5817 | } |
| 5818 | |
| 5819 | static int qseecom_get_ce_hw_instance(uint32_t unit, uint32_t usage) |
| 5820 | { |
| 5821 | struct qseecom_ce_info_use *pce_info_use, *p; |
| 5822 | int total = 0; |
| 5823 | int i; |
| 5824 | |
| 5825 | switch (usage) { |
| 5826 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 5827 | case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION: |
| 5828 | case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION: |
| 5829 | p = qseecom.ce_info.fde; |
| 5830 | total = qseecom.ce_info.num_fde; |
| 5831 | break; |
| 5832 | case QSEOS_KM_USAGE_FILE_ENCRYPTION: |
| 5833 | p = qseecom.ce_info.pfe; |
| 5834 | total = qseecom.ce_info.num_pfe; |
| 5835 | break; |
| 5836 | default: |
| 5837 | pr_err("unsupported usage %d\n", usage); |
| 5838 | return -EINVAL; |
| 5839 | } |
| 5840 | |
| 5841 | pce_info_use = NULL; |
| 5842 | |
| 5843 | for (i = 0; i < total; i++) { |
| 5844 | if (p->unit_num == unit) { |
| 5845 | pce_info_use = p; |
| 5846 | break; |
| 5847 | } |
| 5848 | p++; |
| 5849 | } |
| 5850 | if (!pce_info_use) { |
| 5851 | pr_err("can not find %d\n", unit); |
| 5852 | return -EINVAL; |
| 5853 | } |
| 5854 | return pce_info_use->num_ce_pipe_entries; |
| 5855 | } |
| 5856 | |
| 5857 | static int qseecom_create_key(struct qseecom_dev_handle *data, |
| 5858 | void __user *argp) |
| 5859 | { |
| 5860 | int i; |
| 5861 | uint32_t *ce_hw = NULL; |
| 5862 | uint32_t pipe = 0; |
| 5863 | int ret = 0; |
| 5864 | uint32_t flags = 0; |
| 5865 | struct qseecom_create_key_req create_key_req; |
| 5866 | struct qseecom_key_generate_ireq generate_key_ireq; |
| 5867 | struct qseecom_key_select_ireq set_key_ireq; |
| 5868 | uint32_t entries = 0; |
| 5869 | |
| 5870 | ret = copy_from_user(&create_key_req, argp, sizeof(create_key_req)); |
| 5871 | if (ret) { |
| 5872 | pr_err("copy_from_user failed\n"); |
| 5873 | return ret; |
| 5874 | } |
| 5875 | |
| 5876 | if (create_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 5877 | create_key_req.usage >= QSEOS_KM_USAGE_MAX) { |
| 5878 | pr_err("unsupported usage %d\n", create_key_req.usage); |
| 5879 | ret = -EFAULT; |
| 5880 | return ret; |
| 5881 | } |
| 5882 | entries = qseecom_get_ce_hw_instance(DEFAULT_CE_INFO_UNIT, |
| 5883 | create_key_req.usage); |
| 5884 | if (entries <= 0) { |
| 5885 | pr_err("no ce instance for usage %d instance %d\n", |
| 5886 | DEFAULT_CE_INFO_UNIT, create_key_req.usage); |
| 5887 | ret = -EINVAL; |
| 5888 | return ret; |
| 5889 | } |
| 5890 | |
| 5891 | ce_hw = kcalloc(entries, sizeof(*ce_hw), GFP_KERNEL); |
| 5892 | if (!ce_hw) { |
| 5893 | ret = -ENOMEM; |
| 5894 | return ret; |
| 5895 | } |
| 5896 | ret = __qseecom_get_ce_pipe_info(create_key_req.usage, &pipe, &ce_hw, |
| 5897 | DEFAULT_CE_INFO_UNIT); |
| 5898 | if (ret) { |
| 5899 | pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret); |
| 5900 | ret = -EINVAL; |
| 5901 | goto free_buf; |
| 5902 | } |
| 5903 | |
| 5904 | if (qseecom.fde_key_size) |
| 5905 | flags |= QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE; |
| 5906 | else |
| 5907 | flags |= QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE; |
| 5908 | |
| 5909 | generate_key_ireq.flags = flags; |
| 5910 | generate_key_ireq.qsee_command_id = QSEOS_GENERATE_KEY; |
| 5911 | memset((void *)generate_key_ireq.key_id, |
| 5912 | 0, QSEECOM_KEY_ID_SIZE); |
| 5913 | memset((void *)generate_key_ireq.hash32, |
| 5914 | 0, QSEECOM_HASH_SIZE); |
| 5915 | memcpy((void *)generate_key_ireq.key_id, |
| 5916 | (void *)key_id_array[create_key_req.usage].desc, |
| 5917 | QSEECOM_KEY_ID_SIZE); |
| 5918 | memcpy((void *)generate_key_ireq.hash32, |
| 5919 | (void *)create_key_req.hash32, |
| 5920 | QSEECOM_HASH_SIZE); |
| 5921 | |
| 5922 | ret = __qseecom_generate_and_save_key(data, |
| 5923 | create_key_req.usage, &generate_key_ireq); |
| 5924 | if (ret) { |
| 5925 | pr_err("Failed to generate key on storage: %d\n", ret); |
| 5926 | goto free_buf; |
| 5927 | } |
| 5928 | |
| 5929 | for (i = 0; i < entries; i++) { |
| 5930 | set_key_ireq.qsee_command_id = QSEOS_SET_KEY; |
| 5931 | if (create_key_req.usage == |
| 5932 | QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) { |
| 5933 | set_key_ireq.ce = QSEECOM_UFS_ICE_CE_NUM; |
| 5934 | set_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX; |
| 5935 | |
| 5936 | } else if (create_key_req.usage == |
| 5937 | QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) { |
| 5938 | set_key_ireq.ce = QSEECOM_SDCC_ICE_CE_NUM; |
| 5939 | set_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX; |
| 5940 | |
| 5941 | } else { |
| 5942 | set_key_ireq.ce = ce_hw[i]; |
| 5943 | set_key_ireq.pipe = pipe; |
| 5944 | } |
| 5945 | set_key_ireq.flags = flags; |
| 5946 | |
| 5947 | /* set both PIPE_ENC and PIPE_ENC_XTS*/ |
| 5948 | set_key_ireq.pipe_type = QSEOS_PIPE_ENC|QSEOS_PIPE_ENC_XTS; |
| 5949 | memset((void *)set_key_ireq.key_id, 0, QSEECOM_KEY_ID_SIZE); |
| 5950 | memset((void *)set_key_ireq.hash32, 0, QSEECOM_HASH_SIZE); |
| 5951 | memcpy((void *)set_key_ireq.key_id, |
| 5952 | (void *)key_id_array[create_key_req.usage].desc, |
| 5953 | QSEECOM_KEY_ID_SIZE); |
| 5954 | memcpy((void *)set_key_ireq.hash32, |
| 5955 | (void *)create_key_req.hash32, |
| 5956 | QSEECOM_HASH_SIZE); |
| 5957 | /* |
| 5958 | * It will return false if it is GPCE based crypto instance or |
| 5959 | * ICE is setup properly |
| 5960 | */ |
AnilKumar Chimata | 4e210f9 | 2017-04-28 14:31:25 -0700 | [diff] [blame] | 5961 | ret = qseecom_enable_ice_setup(create_key_req.usage); |
| 5962 | if (ret) |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 5963 | goto free_buf; |
| 5964 | |
| 5965 | do { |
| 5966 | ret = __qseecom_set_clear_ce_key(data, |
| 5967 | create_key_req.usage, |
| 5968 | &set_key_ireq); |
| 5969 | /* |
| 5970 | * wait a little before calling scm again to let other |
| 5971 | * processes run |
| 5972 | */ |
| 5973 | if (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION) |
| 5974 | msleep(50); |
| 5975 | |
| 5976 | } while (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION); |
| 5977 | |
| 5978 | qseecom_disable_ice_setup(create_key_req.usage); |
| 5979 | |
| 5980 | if (ret) { |
| 5981 | pr_err("Failed to create key: pipe %d, ce %d: %d\n", |
| 5982 | pipe, ce_hw[i], ret); |
| 5983 | goto free_buf; |
| 5984 | } else { |
| 5985 | pr_err("Set the key successfully\n"); |
| 5986 | if ((create_key_req.usage == |
| 5987 | QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) || |
| 5988 | (create_key_req.usage == |
| 5989 | QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION)) |
| 5990 | goto free_buf; |
| 5991 | } |
| 5992 | } |
| 5993 | |
| 5994 | free_buf: |
| 5995 | kzfree(ce_hw); |
| 5996 | return ret; |
| 5997 | } |
| 5998 | |
| 5999 | static int qseecom_wipe_key(struct qseecom_dev_handle *data, |
| 6000 | void __user *argp) |
| 6001 | { |
| 6002 | uint32_t *ce_hw = NULL; |
| 6003 | uint32_t pipe = 0; |
| 6004 | int ret = 0; |
| 6005 | uint32_t flags = 0; |
| 6006 | int i, j; |
| 6007 | struct qseecom_wipe_key_req wipe_key_req; |
| 6008 | struct qseecom_key_delete_ireq delete_key_ireq; |
| 6009 | struct qseecom_key_select_ireq clear_key_ireq; |
| 6010 | uint32_t entries = 0; |
| 6011 | |
| 6012 | ret = copy_from_user(&wipe_key_req, argp, sizeof(wipe_key_req)); |
| 6013 | if (ret) { |
| 6014 | pr_err("copy_from_user failed\n"); |
| 6015 | return ret; |
| 6016 | } |
| 6017 | |
| 6018 | if (wipe_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 6019 | wipe_key_req.usage >= QSEOS_KM_USAGE_MAX) { |
| 6020 | pr_err("unsupported usage %d\n", wipe_key_req.usage); |
| 6021 | ret = -EFAULT; |
| 6022 | return ret; |
| 6023 | } |
| 6024 | |
| 6025 | entries = qseecom_get_ce_hw_instance(DEFAULT_CE_INFO_UNIT, |
| 6026 | wipe_key_req.usage); |
| 6027 | if (entries <= 0) { |
| 6028 | pr_err("no ce instance for usage %d instance %d\n", |
| 6029 | DEFAULT_CE_INFO_UNIT, wipe_key_req.usage); |
| 6030 | ret = -EINVAL; |
| 6031 | return ret; |
| 6032 | } |
| 6033 | |
| 6034 | ce_hw = kcalloc(entries, sizeof(*ce_hw), GFP_KERNEL); |
| 6035 | if (!ce_hw) { |
| 6036 | ret = -ENOMEM; |
| 6037 | return ret; |
| 6038 | } |
| 6039 | |
| 6040 | ret = __qseecom_get_ce_pipe_info(wipe_key_req.usage, &pipe, &ce_hw, |
| 6041 | DEFAULT_CE_INFO_UNIT); |
| 6042 | if (ret) { |
| 6043 | pr_err("Failed to retrieve pipe/ce_hw info: %d\n", ret); |
| 6044 | ret = -EINVAL; |
| 6045 | goto free_buf; |
| 6046 | } |
| 6047 | |
| 6048 | if (wipe_key_req.wipe_key_flag) { |
| 6049 | delete_key_ireq.flags = flags; |
| 6050 | delete_key_ireq.qsee_command_id = QSEOS_DELETE_KEY; |
| 6051 | memset((void *)delete_key_ireq.key_id, 0, QSEECOM_KEY_ID_SIZE); |
| 6052 | memcpy((void *)delete_key_ireq.key_id, |
| 6053 | (void *)key_id_array[wipe_key_req.usage].desc, |
| 6054 | QSEECOM_KEY_ID_SIZE); |
| 6055 | memset((void *)delete_key_ireq.hash32, 0, QSEECOM_HASH_SIZE); |
| 6056 | |
| 6057 | ret = __qseecom_delete_saved_key(data, wipe_key_req.usage, |
| 6058 | &delete_key_ireq); |
| 6059 | if (ret) { |
| 6060 | pr_err("Failed to delete key from ssd storage: %d\n", |
| 6061 | ret); |
| 6062 | ret = -EFAULT; |
| 6063 | goto free_buf; |
| 6064 | } |
| 6065 | } |
| 6066 | |
| 6067 | for (j = 0; j < entries; j++) { |
| 6068 | clear_key_ireq.qsee_command_id = QSEOS_SET_KEY; |
| 6069 | if (wipe_key_req.usage == |
| 6070 | QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION) { |
| 6071 | clear_key_ireq.ce = QSEECOM_UFS_ICE_CE_NUM; |
| 6072 | clear_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX; |
| 6073 | } else if (wipe_key_req.usage == |
| 6074 | QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION) { |
| 6075 | clear_key_ireq.ce = QSEECOM_SDCC_ICE_CE_NUM; |
| 6076 | clear_key_ireq.pipe = QSEECOM_ICE_FDE_KEY_INDEX; |
| 6077 | } else { |
| 6078 | clear_key_ireq.ce = ce_hw[j]; |
| 6079 | clear_key_ireq.pipe = pipe; |
| 6080 | } |
| 6081 | clear_key_ireq.flags = flags; |
| 6082 | clear_key_ireq.pipe_type = QSEOS_PIPE_ENC|QSEOS_PIPE_ENC_XTS; |
| 6083 | for (i = 0; i < QSEECOM_KEY_ID_SIZE; i++) |
| 6084 | clear_key_ireq.key_id[i] = QSEECOM_INVALID_KEY_ID; |
| 6085 | memset((void *)clear_key_ireq.hash32, 0, QSEECOM_HASH_SIZE); |
| 6086 | |
| 6087 | /* |
| 6088 | * It will return false if it is GPCE based crypto instance or |
| 6089 | * ICE is setup properly |
| 6090 | */ |
AnilKumar Chimata | 4e210f9 | 2017-04-28 14:31:25 -0700 | [diff] [blame] | 6091 | ret = qseecom_enable_ice_setup(wipe_key_req.usage); |
| 6092 | if (ret) |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6093 | goto free_buf; |
| 6094 | |
| 6095 | ret = __qseecom_set_clear_ce_key(data, wipe_key_req.usage, |
| 6096 | &clear_key_ireq); |
| 6097 | |
| 6098 | qseecom_disable_ice_setup(wipe_key_req.usage); |
| 6099 | |
| 6100 | if (ret) { |
| 6101 | pr_err("Failed to wipe key: pipe %d, ce %d: %d\n", |
| 6102 | pipe, ce_hw[j], ret); |
| 6103 | ret = -EFAULT; |
| 6104 | goto free_buf; |
| 6105 | } |
| 6106 | } |
| 6107 | |
| 6108 | free_buf: |
| 6109 | kzfree(ce_hw); |
| 6110 | return ret; |
| 6111 | } |
| 6112 | |
| 6113 | static int qseecom_update_key_user_info(struct qseecom_dev_handle *data, |
| 6114 | void __user *argp) |
| 6115 | { |
| 6116 | int ret = 0; |
| 6117 | uint32_t flags = 0; |
| 6118 | struct qseecom_update_key_userinfo_req update_key_req; |
| 6119 | struct qseecom_key_userinfo_update_ireq ireq; |
| 6120 | |
| 6121 | ret = copy_from_user(&update_key_req, argp, sizeof(update_key_req)); |
| 6122 | if (ret) { |
| 6123 | pr_err("copy_from_user failed\n"); |
| 6124 | return ret; |
| 6125 | } |
| 6126 | |
| 6127 | if (update_key_req.usage < QSEOS_KM_USAGE_DISK_ENCRYPTION || |
| 6128 | update_key_req.usage >= QSEOS_KM_USAGE_MAX) { |
| 6129 | pr_err("Error:: unsupported usage %d\n", update_key_req.usage); |
| 6130 | return -EFAULT; |
| 6131 | } |
| 6132 | |
| 6133 | ireq.qsee_command_id = QSEOS_UPDATE_KEY_USERINFO; |
| 6134 | |
| 6135 | if (qseecom.fde_key_size) |
| 6136 | flags |= QSEECOM_ICE_FDE_KEY_SIZE_32_BYTE; |
| 6137 | else |
| 6138 | flags |= QSEECOM_ICE_FDE_KEY_SIZE_16_BYTE; |
| 6139 | |
| 6140 | ireq.flags = flags; |
| 6141 | memset(ireq.key_id, 0, QSEECOM_KEY_ID_SIZE); |
| 6142 | memset((void *)ireq.current_hash32, 0, QSEECOM_HASH_SIZE); |
| 6143 | memset((void *)ireq.new_hash32, 0, QSEECOM_HASH_SIZE); |
| 6144 | memcpy((void *)ireq.key_id, |
| 6145 | (void *)key_id_array[update_key_req.usage].desc, |
| 6146 | QSEECOM_KEY_ID_SIZE); |
| 6147 | memcpy((void *)ireq.current_hash32, |
| 6148 | (void *)update_key_req.current_hash32, QSEECOM_HASH_SIZE); |
| 6149 | memcpy((void *)ireq.new_hash32, |
| 6150 | (void *)update_key_req.new_hash32, QSEECOM_HASH_SIZE); |
| 6151 | |
| 6152 | do { |
| 6153 | ret = __qseecom_update_current_key_user_info(data, |
| 6154 | update_key_req.usage, |
| 6155 | &ireq); |
| 6156 | /* |
| 6157 | * wait a little before calling scm again to let other |
| 6158 | * processes run |
| 6159 | */ |
| 6160 | if (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION) |
| 6161 | msleep(50); |
| 6162 | |
| 6163 | } while (ret == QSEOS_RESULT_FAIL_PENDING_OPERATION); |
| 6164 | if (ret) { |
| 6165 | pr_err("Failed to update key info: %d\n", ret); |
| 6166 | return ret; |
| 6167 | } |
| 6168 | return ret; |
| 6169 | |
| 6170 | } |
| 6171 | static int qseecom_is_es_activated(void __user *argp) |
| 6172 | { |
| 6173 | struct qseecom_is_es_activated_req req; |
| 6174 | struct qseecom_command_scm_resp resp; |
| 6175 | int ret; |
| 6176 | |
| 6177 | if (qseecom.qsee_version < QSEE_VERSION_04) { |
| 6178 | pr_err("invalid qsee version\n"); |
| 6179 | return -ENODEV; |
| 6180 | } |
| 6181 | |
| 6182 | if (argp == NULL) { |
| 6183 | pr_err("arg is null\n"); |
| 6184 | return -EINVAL; |
| 6185 | } |
| 6186 | |
| 6187 | ret = qseecom_scm_call(SCM_SVC_ES, SCM_IS_ACTIVATED_ID, |
| 6188 | &req, sizeof(req), &resp, sizeof(resp)); |
| 6189 | if (ret) { |
| 6190 | pr_err("scm_call failed\n"); |
| 6191 | return ret; |
| 6192 | } |
| 6193 | |
| 6194 | req.is_activated = resp.result; |
| 6195 | ret = copy_to_user(argp, &req, sizeof(req)); |
| 6196 | if (ret) { |
| 6197 | pr_err("copy_to_user failed\n"); |
| 6198 | return ret; |
| 6199 | } |
| 6200 | |
| 6201 | return 0; |
| 6202 | } |
| 6203 | |
| 6204 | static int qseecom_save_partition_hash(void __user *argp) |
| 6205 | { |
| 6206 | struct qseecom_save_partition_hash_req req; |
| 6207 | struct qseecom_command_scm_resp resp; |
| 6208 | int ret; |
| 6209 | |
| 6210 | memset(&resp, 0x00, sizeof(resp)); |
| 6211 | |
| 6212 | if (qseecom.qsee_version < QSEE_VERSION_04) { |
| 6213 | pr_err("invalid qsee version\n"); |
| 6214 | return -ENODEV; |
| 6215 | } |
| 6216 | |
| 6217 | if (argp == NULL) { |
| 6218 | pr_err("arg is null\n"); |
| 6219 | return -EINVAL; |
| 6220 | } |
| 6221 | |
| 6222 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 6223 | if (ret) { |
| 6224 | pr_err("copy_from_user failed\n"); |
| 6225 | return ret; |
| 6226 | } |
| 6227 | |
| 6228 | ret = qseecom_scm_call(SCM_SVC_ES, SCM_SAVE_PARTITION_HASH_ID, |
| 6229 | (void *)&req, sizeof(req), (void *)&resp, sizeof(resp)); |
| 6230 | if (ret) { |
| 6231 | pr_err("qseecom_scm_call failed\n"); |
| 6232 | return ret; |
| 6233 | } |
| 6234 | |
| 6235 | return 0; |
| 6236 | } |
| 6237 | |
| 6238 | static int qseecom_mdtp_cipher_dip(void __user *argp) |
| 6239 | { |
| 6240 | struct qseecom_mdtp_cipher_dip_req req; |
| 6241 | u32 tzbuflenin, tzbuflenout; |
| 6242 | char *tzbufin = NULL, *tzbufout = NULL; |
| 6243 | struct scm_desc desc = {0}; |
| 6244 | int ret; |
| 6245 | |
| 6246 | do { |
| 6247 | /* Copy the parameters from userspace */ |
| 6248 | if (argp == NULL) { |
| 6249 | pr_err("arg is null\n"); |
| 6250 | ret = -EINVAL; |
| 6251 | break; |
| 6252 | } |
| 6253 | |
| 6254 | ret = copy_from_user(&req, argp, sizeof(req)); |
| 6255 | if (ret) { |
| 6256 | pr_err("copy_from_user failed, ret= %d\n", ret); |
| 6257 | break; |
| 6258 | } |
| 6259 | |
| 6260 | if (req.in_buf == NULL || req.out_buf == NULL || |
| 6261 | req.in_buf_size == 0 || req.in_buf_size > MAX_DIP || |
| 6262 | req.out_buf_size == 0 || req.out_buf_size > MAX_DIP || |
| 6263 | req.direction > 1) { |
| 6264 | pr_err("invalid parameters\n"); |
| 6265 | ret = -EINVAL; |
| 6266 | break; |
| 6267 | } |
| 6268 | |
| 6269 | /* Copy the input buffer from userspace to kernel space */ |
| 6270 | tzbuflenin = PAGE_ALIGN(req.in_buf_size); |
| 6271 | tzbufin = kzalloc(tzbuflenin, GFP_KERNEL); |
| 6272 | if (!tzbufin) { |
| 6273 | pr_err("error allocating in buffer\n"); |
| 6274 | ret = -ENOMEM; |
| 6275 | break; |
| 6276 | } |
| 6277 | |
| 6278 | ret = copy_from_user(tzbufin, req.in_buf, req.in_buf_size); |
| 6279 | if (ret) { |
| 6280 | pr_err("copy_from_user failed, ret=%d\n", ret); |
| 6281 | break; |
| 6282 | } |
| 6283 | |
| 6284 | dmac_flush_range(tzbufin, tzbufin + tzbuflenin); |
| 6285 | |
| 6286 | /* Prepare the output buffer in kernel space */ |
| 6287 | tzbuflenout = PAGE_ALIGN(req.out_buf_size); |
| 6288 | tzbufout = kzalloc(tzbuflenout, GFP_KERNEL); |
| 6289 | if (!tzbufout) { |
| 6290 | pr_err("error allocating out buffer\n"); |
| 6291 | ret = -ENOMEM; |
| 6292 | break; |
| 6293 | } |
| 6294 | |
| 6295 | dmac_flush_range(tzbufout, tzbufout + tzbuflenout); |
| 6296 | |
| 6297 | /* Send the command to TZ */ |
| 6298 | desc.arginfo = TZ_MDTP_CIPHER_DIP_ID_PARAM_ID; |
| 6299 | desc.args[0] = virt_to_phys(tzbufin); |
| 6300 | desc.args[1] = req.in_buf_size; |
| 6301 | desc.args[2] = virt_to_phys(tzbufout); |
| 6302 | desc.args[3] = req.out_buf_size; |
| 6303 | desc.args[4] = req.direction; |
| 6304 | |
| 6305 | ret = __qseecom_enable_clk(CLK_QSEE); |
| 6306 | if (ret) |
| 6307 | break; |
| 6308 | |
| 6309 | ret = scm_call2(TZ_MDTP_CIPHER_DIP_ID, &desc); |
| 6310 | |
| 6311 | __qseecom_disable_clk(CLK_QSEE); |
| 6312 | |
| 6313 | if (ret) { |
| 6314 | pr_err("scm_call2 failed for SCM_SVC_MDTP, ret=%d\n", |
| 6315 | ret); |
| 6316 | break; |
| 6317 | } |
| 6318 | |
| 6319 | /* Copy the output buffer from kernel space to userspace */ |
| 6320 | dmac_flush_range(tzbufout, tzbufout + tzbuflenout); |
| 6321 | ret = copy_to_user(req.out_buf, tzbufout, req.out_buf_size); |
| 6322 | if (ret) { |
| 6323 | pr_err("copy_to_user failed, ret=%d\n", ret); |
| 6324 | break; |
| 6325 | } |
| 6326 | } while (0); |
| 6327 | |
| 6328 | kzfree(tzbufin); |
| 6329 | kzfree(tzbufout); |
| 6330 | |
| 6331 | return ret; |
| 6332 | } |
| 6333 | |
| 6334 | static int __qseecom_qteec_validate_msg(struct qseecom_dev_handle *data, |
| 6335 | struct qseecom_qteec_req *req) |
| 6336 | { |
| 6337 | if (!data || !data->client.ihandle) { |
| 6338 | pr_err("Client or client handle is not initialized\n"); |
| 6339 | return -EINVAL; |
| 6340 | } |
| 6341 | |
| 6342 | if (data->type != QSEECOM_CLIENT_APP) |
| 6343 | return -EFAULT; |
| 6344 | |
| 6345 | if (req->req_len > UINT_MAX - req->resp_len) { |
| 6346 | pr_err("Integer overflow detected in req_len & rsp_len\n"); |
| 6347 | return -EINVAL; |
| 6348 | } |
| 6349 | |
| 6350 | if (req->req_len + req->resp_len > data->client.sb_length) { |
| 6351 | pr_debug("Not enough memory to fit cmd_buf.\n"); |
| 6352 | pr_debug("resp_buf. Required: %u, Available: %zu\n", |
| 6353 | (req->req_len + req->resp_len), data->client.sb_length); |
| 6354 | return -ENOMEM; |
| 6355 | } |
| 6356 | |
| 6357 | if (req->req_ptr == NULL || req->resp_ptr == NULL) { |
| 6358 | pr_err("cmd buffer or response buffer is null\n"); |
| 6359 | return -EINVAL; |
| 6360 | } |
| 6361 | if (((uintptr_t)req->req_ptr < |
| 6362 | data->client.user_virt_sb_base) || |
| 6363 | ((uintptr_t)req->req_ptr >= |
| 6364 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 6365 | pr_err("cmd buffer address not within shared bufffer\n"); |
| 6366 | return -EINVAL; |
| 6367 | } |
| 6368 | |
| 6369 | if (((uintptr_t)req->resp_ptr < |
| 6370 | data->client.user_virt_sb_base) || |
| 6371 | ((uintptr_t)req->resp_ptr >= |
| 6372 | (data->client.user_virt_sb_base + data->client.sb_length))) { |
| 6373 | pr_err("response buffer address not within shared bufffer\n"); |
| 6374 | return -EINVAL; |
| 6375 | } |
| 6376 | |
| 6377 | if ((req->req_len == 0) || (req->resp_len == 0)) { |
| 6378 | pr_err("cmd buf lengtgh/response buf length not valid\n"); |
| 6379 | return -EINVAL; |
| 6380 | } |
| 6381 | |
| 6382 | if ((uintptr_t)req->req_ptr > (ULONG_MAX - req->req_len)) { |
| 6383 | pr_err("Integer overflow in req_len & req_ptr\n"); |
| 6384 | return -EINVAL; |
| 6385 | } |
| 6386 | |
| 6387 | if ((uintptr_t)req->resp_ptr > (ULONG_MAX - req->resp_len)) { |
| 6388 | pr_err("Integer overflow in resp_len & resp_ptr\n"); |
| 6389 | return -EINVAL; |
| 6390 | } |
| 6391 | |
| 6392 | if (data->client.user_virt_sb_base > |
| 6393 | (ULONG_MAX - data->client.sb_length)) { |
| 6394 | pr_err("Integer overflow in user_virt_sb_base & sb_length\n"); |
| 6395 | return -EINVAL; |
| 6396 | } |
| 6397 | if ((((uintptr_t)req->req_ptr + req->req_len) > |
| 6398 | ((uintptr_t)data->client.user_virt_sb_base + |
| 6399 | data->client.sb_length)) || |
| 6400 | (((uintptr_t)req->resp_ptr + req->resp_len) > |
| 6401 | ((uintptr_t)data->client.user_virt_sb_base + |
| 6402 | data->client.sb_length))) { |
| 6403 | pr_err("cmd buf or resp buf is out of shared buffer region\n"); |
| 6404 | return -EINVAL; |
| 6405 | } |
| 6406 | return 0; |
| 6407 | } |
| 6408 | |
| 6409 | static int __qseecom_qteec_handle_pre_alc_fd(struct qseecom_dev_handle *data, |
| 6410 | uint32_t fd_idx, struct sg_table *sg_ptr) |
| 6411 | { |
| 6412 | struct scatterlist *sg = sg_ptr->sgl; |
| 6413 | struct qseecom_sg_entry *sg_entry; |
| 6414 | void *buf; |
| 6415 | uint i; |
| 6416 | size_t size; |
| 6417 | dma_addr_t coh_pmem; |
| 6418 | |
| 6419 | if (fd_idx >= MAX_ION_FD) { |
| 6420 | pr_err("fd_idx [%d] is invalid\n", fd_idx); |
| 6421 | return -ENOMEM; |
| 6422 | } |
| 6423 | /* |
| 6424 | * Allocate a buffer, populate it with number of entry plus |
| 6425 | * each sg entry's phy addr and length; then return the |
| 6426 | * phy_addr of the buffer. |
| 6427 | */ |
| 6428 | size = sizeof(uint32_t) + |
| 6429 | sizeof(struct qseecom_sg_entry) * sg_ptr->nents; |
| 6430 | size = (size + PAGE_SIZE) & PAGE_MASK; |
| 6431 | buf = dma_alloc_coherent(qseecom.pdev, |
| 6432 | size, &coh_pmem, GFP_KERNEL); |
| 6433 | if (buf == NULL) { |
| 6434 | pr_err("failed to alloc memory for sg buf\n"); |
| 6435 | return -ENOMEM; |
| 6436 | } |
| 6437 | *(uint32_t *)buf = sg_ptr->nents; |
| 6438 | sg_entry = (struct qseecom_sg_entry *) (buf + sizeof(uint32_t)); |
| 6439 | for (i = 0; i < sg_ptr->nents; i++) { |
| 6440 | sg_entry->phys_addr = (uint32_t)sg_dma_address(sg); |
| 6441 | sg_entry->len = sg->length; |
| 6442 | sg_entry++; |
| 6443 | sg = sg_next(sg); |
| 6444 | } |
| 6445 | data->client.sec_buf_fd[fd_idx].is_sec_buf_fd = true; |
| 6446 | data->client.sec_buf_fd[fd_idx].vbase = buf; |
| 6447 | data->client.sec_buf_fd[fd_idx].pbase = coh_pmem; |
| 6448 | data->client.sec_buf_fd[fd_idx].size = size; |
| 6449 | return 0; |
| 6450 | } |
| 6451 | |
| 6452 | static int __qseecom_update_qteec_req_buf(struct qseecom_qteec_modfd_req *req, |
| 6453 | struct qseecom_dev_handle *data, bool cleanup) |
| 6454 | { |
| 6455 | struct ion_handle *ihandle; |
| 6456 | int ret = 0; |
| 6457 | int i = 0; |
| 6458 | uint32_t *update; |
| 6459 | struct sg_table *sg_ptr = NULL; |
| 6460 | struct scatterlist *sg; |
| 6461 | struct qseecom_param_memref *memref; |
| 6462 | |
| 6463 | if (req == NULL) { |
| 6464 | pr_err("Invalid address\n"); |
| 6465 | return -EINVAL; |
| 6466 | } |
| 6467 | for (i = 0; i < MAX_ION_FD; i++) { |
| 6468 | if (req->ifd_data[i].fd > 0) { |
AnilKumar Chimata | 04d60cf | 2017-04-09 11:43:10 -0700 | [diff] [blame] | 6469 | ihandle = ion_import_dma_buf_fd(qseecom.ion_clnt, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6470 | req->ifd_data[i].fd); |
| 6471 | if (IS_ERR_OR_NULL(ihandle)) { |
| 6472 | pr_err("Ion client can't retrieve the handle\n"); |
| 6473 | return -ENOMEM; |
| 6474 | } |
| 6475 | if ((req->req_len < sizeof(uint32_t)) || |
| 6476 | (req->ifd_data[i].cmd_buf_offset > |
| 6477 | req->req_len - sizeof(uint32_t))) { |
| 6478 | pr_err("Invalid offset/req len 0x%x/0x%x\n", |
| 6479 | req->req_len, |
| 6480 | req->ifd_data[i].cmd_buf_offset); |
| 6481 | return -EINVAL; |
| 6482 | } |
| 6483 | update = (uint32_t *)((char *) req->req_ptr + |
| 6484 | req->ifd_data[i].cmd_buf_offset); |
| 6485 | if (!update) { |
| 6486 | pr_err("update pointer is NULL\n"); |
| 6487 | return -EINVAL; |
| 6488 | } |
| 6489 | } else { |
| 6490 | continue; |
| 6491 | } |
| 6492 | /* Populate the cmd data structure with the phys_addr */ |
| 6493 | sg_ptr = ion_sg_table(qseecom.ion_clnt, ihandle); |
| 6494 | if (IS_ERR_OR_NULL(sg_ptr)) { |
| 6495 | pr_err("IOn client could not retrieve sg table\n"); |
| 6496 | goto err; |
| 6497 | } |
| 6498 | sg = sg_ptr->sgl; |
| 6499 | if (sg == NULL) { |
| 6500 | pr_err("sg is NULL\n"); |
| 6501 | goto err; |
| 6502 | } |
| 6503 | if ((sg_ptr->nents == 0) || (sg->length == 0)) { |
| 6504 | pr_err("Num of scat entr (%d)or length(%d) invalid\n", |
| 6505 | sg_ptr->nents, sg->length); |
| 6506 | goto err; |
| 6507 | } |
| 6508 | /* clean up buf for pre-allocated fd */ |
| 6509 | if (cleanup && data->client.sec_buf_fd[i].is_sec_buf_fd && |
| 6510 | (*update)) { |
| 6511 | if (data->client.sec_buf_fd[i].vbase) |
| 6512 | dma_free_coherent(qseecom.pdev, |
| 6513 | data->client.sec_buf_fd[i].size, |
| 6514 | data->client.sec_buf_fd[i].vbase, |
| 6515 | data->client.sec_buf_fd[i].pbase); |
| 6516 | memset((void *)update, 0, |
| 6517 | sizeof(struct qseecom_param_memref)); |
| 6518 | memset(&(data->client.sec_buf_fd[i]), 0, |
| 6519 | sizeof(struct qseecom_sec_buf_fd_info)); |
| 6520 | goto clean; |
| 6521 | } |
| 6522 | |
| 6523 | if (*update == 0) { |
| 6524 | /* update buf for pre-allocated fd from secure heap*/ |
| 6525 | ret = __qseecom_qteec_handle_pre_alc_fd(data, i, |
| 6526 | sg_ptr); |
| 6527 | if (ret) { |
| 6528 | pr_err("Failed to handle buf for fd[%d]\n", i); |
| 6529 | goto err; |
| 6530 | } |
| 6531 | memref = (struct qseecom_param_memref *)update; |
| 6532 | memref->buffer = |
| 6533 | (uint32_t)(data->client.sec_buf_fd[i].pbase); |
| 6534 | memref->size = |
| 6535 | (uint32_t)(data->client.sec_buf_fd[i].size); |
| 6536 | } else { |
| 6537 | /* update buf for fd from non-secure qseecom heap */ |
| 6538 | if (sg_ptr->nents != 1) { |
| 6539 | pr_err("Num of scat entr (%d) invalid\n", |
| 6540 | sg_ptr->nents); |
| 6541 | goto err; |
| 6542 | } |
| 6543 | if (cleanup) |
| 6544 | *update = 0; |
| 6545 | else |
| 6546 | *update = (uint32_t)sg_dma_address(sg_ptr->sgl); |
| 6547 | } |
| 6548 | clean: |
| 6549 | if (cleanup) { |
| 6550 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 6551 | ihandle, NULL, sg->length, |
| 6552 | ION_IOC_INV_CACHES); |
| 6553 | if (ret) { |
| 6554 | pr_err("cache operation failed %d\n", ret); |
| 6555 | goto err; |
| 6556 | } |
| 6557 | } else { |
| 6558 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, |
| 6559 | ihandle, NULL, sg->length, |
| 6560 | ION_IOC_CLEAN_INV_CACHES); |
| 6561 | if (ret) { |
| 6562 | pr_err("cache operation failed %d\n", ret); |
| 6563 | goto err; |
| 6564 | } |
| 6565 | data->sglistinfo_ptr[i].indexAndFlags = |
| 6566 | SGLISTINFO_SET_INDEX_FLAG( |
| 6567 | (sg_ptr->nents == 1), 0, |
| 6568 | req->ifd_data[i].cmd_buf_offset); |
| 6569 | data->sglistinfo_ptr[i].sizeOrCount = |
| 6570 | (sg_ptr->nents == 1) ? |
| 6571 | sg->length : sg_ptr->nents; |
| 6572 | data->sglist_cnt = i + 1; |
| 6573 | } |
| 6574 | /* Deallocate the handle */ |
| 6575 | if (!IS_ERR_OR_NULL(ihandle)) |
| 6576 | ion_free(qseecom.ion_clnt, ihandle); |
| 6577 | } |
| 6578 | return ret; |
| 6579 | err: |
| 6580 | if (!IS_ERR_OR_NULL(ihandle)) |
| 6581 | ion_free(qseecom.ion_clnt, ihandle); |
| 6582 | return -ENOMEM; |
| 6583 | } |
| 6584 | |
| 6585 | static int __qseecom_qteec_issue_cmd(struct qseecom_dev_handle *data, |
| 6586 | struct qseecom_qteec_req *req, uint32_t cmd_id) |
| 6587 | { |
| 6588 | struct qseecom_command_scm_resp resp; |
| 6589 | struct qseecom_qteec_ireq ireq; |
| 6590 | struct qseecom_qteec_64bit_ireq ireq_64bit; |
| 6591 | struct qseecom_registered_app_list *ptr_app; |
| 6592 | bool found_app = false; |
| 6593 | unsigned long flags; |
| 6594 | int ret = 0; |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6595 | int ret2 = 0; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6596 | uint32_t reqd_len_sb_in = 0; |
| 6597 | void *cmd_buf = NULL; |
| 6598 | size_t cmd_len; |
| 6599 | struct sglist_info *table = data->sglistinfo_ptr; |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6600 | void *req_ptr = NULL; |
| 6601 | void *resp_ptr = NULL; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6602 | |
| 6603 | ret = __qseecom_qteec_validate_msg(data, req); |
| 6604 | if (ret) |
| 6605 | return ret; |
| 6606 | |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6607 | req_ptr = req->req_ptr; |
| 6608 | resp_ptr = req->resp_ptr; |
| 6609 | |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6610 | /* find app_id & img_name from list */ |
| 6611 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 6612 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 6613 | list) { |
| 6614 | if ((ptr_app->app_id == data->client.app_id) && |
| 6615 | (!strcmp(ptr_app->app_name, data->client.app_name))) { |
| 6616 | found_app = true; |
| 6617 | break; |
| 6618 | } |
| 6619 | } |
| 6620 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags); |
| 6621 | if (!found_app) { |
| 6622 | pr_err("app_id %d (%s) is not found\n", data->client.app_id, |
| 6623 | (char *)data->client.app_name); |
| 6624 | return -ENOENT; |
| 6625 | } |
| 6626 | |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6627 | req->req_ptr = (void *)__qseecom_uvirt_to_kvirt(data, |
| 6628 | (uintptr_t)req->req_ptr); |
| 6629 | req->resp_ptr = (void *)__qseecom_uvirt_to_kvirt(data, |
| 6630 | (uintptr_t)req->resp_ptr); |
| 6631 | |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6632 | if ((cmd_id == QSEOS_TEE_OPEN_SESSION) || |
| 6633 | (cmd_id == QSEOS_TEE_REQUEST_CANCELLATION)) { |
| 6634 | ret = __qseecom_update_qteec_req_buf( |
| 6635 | (struct qseecom_qteec_modfd_req *)req, data, false); |
| 6636 | if (ret) |
| 6637 | return ret; |
| 6638 | } |
| 6639 | |
| 6640 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 6641 | ireq.app_id = data->client.app_id; |
| 6642 | ireq.req_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data, |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6643 | (uintptr_t)req_ptr); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6644 | ireq.req_len = req->req_len; |
| 6645 | ireq.resp_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data, |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6646 | (uintptr_t)resp_ptr); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6647 | ireq.resp_len = req->resp_len; |
| 6648 | ireq.sglistinfo_ptr = (uint32_t)virt_to_phys(table); |
| 6649 | ireq.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 6650 | dmac_flush_range((void *)table, |
| 6651 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 6652 | cmd_buf = (void *)&ireq; |
| 6653 | cmd_len = sizeof(struct qseecom_qteec_ireq); |
| 6654 | } else { |
| 6655 | ireq_64bit.app_id = data->client.app_id; |
| 6656 | ireq_64bit.req_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data, |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6657 | (uintptr_t)req_ptr); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6658 | ireq_64bit.req_len = req->req_len; |
| 6659 | ireq_64bit.resp_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data, |
Brahmaji K | b33e26e | 2017-06-01 17:20:10 +0530 | [diff] [blame] | 6660 | (uintptr_t)resp_ptr); |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6661 | ireq_64bit.resp_len = req->resp_len; |
| 6662 | if ((data->client.app_arch == ELFCLASS32) && |
| 6663 | ((ireq_64bit.req_ptr >= |
| 6664 | PHY_ADDR_4G - ireq_64bit.req_len) || |
| 6665 | (ireq_64bit.resp_ptr >= |
| 6666 | PHY_ADDR_4G - ireq_64bit.resp_len))){ |
| 6667 | pr_err("32bit app %s (id: %d): phy_addr exceeds 4G\n", |
| 6668 | data->client.app_name, data->client.app_id); |
| 6669 | pr_err("req_ptr:%llx,req_len:%x,rsp_ptr:%llx,rsp_len:%x\n", |
| 6670 | ireq_64bit.req_ptr, ireq_64bit.req_len, |
| 6671 | ireq_64bit.resp_ptr, ireq_64bit.resp_len); |
| 6672 | return -EFAULT; |
| 6673 | } |
| 6674 | ireq_64bit.sglistinfo_ptr = (uint64_t)virt_to_phys(table); |
| 6675 | ireq_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 6676 | dmac_flush_range((void *)table, |
| 6677 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 6678 | cmd_buf = (void *)&ireq_64bit; |
| 6679 | cmd_len = sizeof(struct qseecom_qteec_64bit_ireq); |
| 6680 | } |
| 6681 | if (qseecom.whitelist_support == true |
| 6682 | && cmd_id == QSEOS_TEE_OPEN_SESSION) |
| 6683 | *(uint32_t *)cmd_buf = QSEOS_TEE_OPEN_SESSION_WHITELIST; |
| 6684 | else |
| 6685 | *(uint32_t *)cmd_buf = cmd_id; |
| 6686 | |
| 6687 | reqd_len_sb_in = req->req_len + req->resp_len; |
| 6688 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 6689 | data->client.sb_virt, |
| 6690 | reqd_len_sb_in, |
| 6691 | ION_IOC_CLEAN_INV_CACHES); |
| 6692 | if (ret) { |
| 6693 | pr_err("cache operation failed %d\n", ret); |
| 6694 | return ret; |
| 6695 | } |
| 6696 | |
| 6697 | __qseecom_reentrancy_check_if_this_app_blocked(ptr_app); |
| 6698 | |
| 6699 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 6700 | cmd_buf, cmd_len, |
| 6701 | &resp, sizeof(resp)); |
| 6702 | if (ret) { |
| 6703 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 6704 | ret, data->client.app_id); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6705 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6706 | } |
| 6707 | |
| 6708 | if (qseecom.qsee_reentrancy_support) { |
| 6709 | ret = __qseecom_process_reentrancy(&resp, ptr_app, data); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6710 | if (ret) |
| 6711 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6712 | } else { |
| 6713 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 6714 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 6715 | if (ret) { |
| 6716 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 6717 | ret); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6718 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6719 | } |
| 6720 | } else { |
| 6721 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 6722 | pr_err("Response result %d not supported\n", |
| 6723 | resp.result); |
| 6724 | ret = -EINVAL; |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6725 | goto exit; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6726 | } |
| 6727 | } |
| 6728 | } |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6729 | exit: |
| 6730 | ret2 = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6731 | data->client.sb_virt, data->client.sb_length, |
| 6732 | ION_IOC_INV_CACHES); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6733 | if (ret2) { |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6734 | pr_err("cache operation failed %d\n", ret); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6735 | return ret2; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6736 | } |
| 6737 | |
| 6738 | if ((cmd_id == QSEOS_TEE_OPEN_SESSION) || |
| 6739 | (cmd_id == QSEOS_TEE_REQUEST_CANCELLATION)) { |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6740 | ret2 = __qseecom_update_qteec_req_buf( |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6741 | (struct qseecom_qteec_modfd_req *)req, data, true); |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6742 | if (ret2) |
| 6743 | return ret2; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6744 | } |
Zhen Kong | 4af480e | 2017-09-19 14:34:16 -0700 | [diff] [blame] | 6745 | return ret; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 6746 | } |
| 6747 | |
| 6748 | static int qseecom_qteec_open_session(struct qseecom_dev_handle *data, |
| 6749 | void __user *argp) |
| 6750 | { |
| 6751 | struct qseecom_qteec_modfd_req req; |
| 6752 | int ret = 0; |
| 6753 | |
| 6754 | ret = copy_from_user(&req, argp, |
| 6755 | sizeof(struct qseecom_qteec_modfd_req)); |
| 6756 | if (ret) { |
| 6757 | pr_err("copy_from_user failed\n"); |
| 6758 | return ret; |
| 6759 | } |
| 6760 | ret = __qseecom_qteec_issue_cmd(data, (struct qseecom_qteec_req *)&req, |
| 6761 | QSEOS_TEE_OPEN_SESSION); |
| 6762 | |
| 6763 | return ret; |
| 6764 | } |
| 6765 | |
| 6766 | static int qseecom_qteec_close_session(struct qseecom_dev_handle *data, |
| 6767 | void __user *argp) |
| 6768 | { |
| 6769 | struct qseecom_qteec_req req; |
| 6770 | int ret = 0; |
| 6771 | |
| 6772 | ret = copy_from_user(&req, argp, sizeof(struct qseecom_qteec_req)); |
| 6773 | if (ret) { |
| 6774 | pr_err("copy_from_user failed\n"); |
| 6775 | return ret; |
| 6776 | } |
| 6777 | ret = __qseecom_qteec_issue_cmd(data, &req, QSEOS_TEE_CLOSE_SESSION); |
| 6778 | return ret; |
| 6779 | } |
| 6780 | |
| 6781 | static int qseecom_qteec_invoke_modfd_cmd(struct qseecom_dev_handle *data, |
| 6782 | void __user *argp) |
| 6783 | { |
| 6784 | struct qseecom_qteec_modfd_req req; |
| 6785 | struct qseecom_command_scm_resp resp; |
| 6786 | struct qseecom_qteec_ireq ireq; |
| 6787 | struct qseecom_qteec_64bit_ireq ireq_64bit; |
| 6788 | struct qseecom_registered_app_list *ptr_app; |
| 6789 | bool found_app = false; |
| 6790 | unsigned long flags; |
| 6791 | int ret = 0; |
| 6792 | int i = 0; |
| 6793 | uint32_t reqd_len_sb_in = 0; |
| 6794 | void *cmd_buf = NULL; |
| 6795 | size_t cmd_len; |
| 6796 | struct sglist_info *table = data->sglistinfo_ptr; |
| 6797 | void *req_ptr = NULL; |
| 6798 | void *resp_ptr = NULL; |
| 6799 | |
| 6800 | ret = copy_from_user(&req, argp, |
| 6801 | sizeof(struct qseecom_qteec_modfd_req)); |
| 6802 | if (ret) { |
| 6803 | pr_err("copy_from_user failed\n"); |
| 6804 | return ret; |
| 6805 | } |
| 6806 | ret = __qseecom_qteec_validate_msg(data, |
| 6807 | (struct qseecom_qteec_req *)(&req)); |
| 6808 | if (ret) |
| 6809 | return ret; |
| 6810 | req_ptr = req.req_ptr; |
| 6811 | resp_ptr = req.resp_ptr; |
| 6812 | |
| 6813 | /* find app_id & img_name from list */ |
| 6814 | spin_lock_irqsave(&qseecom.registered_app_list_lock, flags); |
| 6815 | list_for_each_entry(ptr_app, &qseecom.registered_app_list_head, |
| 6816 | list) { |
| 6817 | if ((ptr_app->app_id == data->client.app_id) && |
| 6818 | (!strcmp(ptr_app->app_name, data->client.app_name))) { |
| 6819 | found_app = true; |
| 6820 | break; |
| 6821 | } |
| 6822 | } |
| 6823 | spin_unlock_irqrestore(&qseecom.registered_app_list_lock, flags); |
| 6824 | if (!found_app) { |
| 6825 | pr_err("app_id %d (%s) is not found\n", data->client.app_id, |
| 6826 | (char *)data->client.app_name); |
| 6827 | return -ENOENT; |
| 6828 | } |
| 6829 | |
| 6830 | /* validate offsets */ |
| 6831 | for (i = 0; i < MAX_ION_FD; i++) { |
| 6832 | if (req.ifd_data[i].fd) { |
| 6833 | if (req.ifd_data[i].cmd_buf_offset >= req.req_len) |
| 6834 | return -EINVAL; |
| 6835 | } |
| 6836 | } |
| 6837 | req.req_ptr = (void *)__qseecom_uvirt_to_kvirt(data, |
| 6838 | (uintptr_t)req.req_ptr); |
| 6839 | req.resp_ptr = (void *)__qseecom_uvirt_to_kvirt(data, |
| 6840 | (uintptr_t)req.resp_ptr); |
| 6841 | ret = __qseecom_update_qteec_req_buf(&req, data, false); |
| 6842 | if (ret) |
| 6843 | return ret; |
| 6844 | |
| 6845 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 6846 | ireq.app_id = data->client.app_id; |
| 6847 | ireq.req_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data, |
| 6848 | (uintptr_t)req_ptr); |
| 6849 | ireq.req_len = req.req_len; |
| 6850 | ireq.resp_ptr = (uint32_t)__qseecom_uvirt_to_kphys(data, |
| 6851 | (uintptr_t)resp_ptr); |
| 6852 | ireq.resp_len = req.resp_len; |
| 6853 | cmd_buf = (void *)&ireq; |
| 6854 | cmd_len = sizeof(struct qseecom_qteec_ireq); |
| 6855 | ireq.sglistinfo_ptr = (uint32_t)virt_to_phys(table); |
| 6856 | ireq.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 6857 | dmac_flush_range((void *)table, |
| 6858 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 6859 | } else { |
| 6860 | ireq_64bit.app_id = data->client.app_id; |
| 6861 | ireq_64bit.req_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data, |
| 6862 | (uintptr_t)req_ptr); |
| 6863 | ireq_64bit.req_len = req.req_len; |
| 6864 | ireq_64bit.resp_ptr = (uint64_t)__qseecom_uvirt_to_kphys(data, |
| 6865 | (uintptr_t)resp_ptr); |
| 6866 | ireq_64bit.resp_len = req.resp_len; |
| 6867 | cmd_buf = (void *)&ireq_64bit; |
| 6868 | cmd_len = sizeof(struct qseecom_qteec_64bit_ireq); |
| 6869 | ireq_64bit.sglistinfo_ptr = (uint64_t)virt_to_phys(table); |
| 6870 | ireq_64bit.sglistinfo_len = SGLISTINFO_TABLE_SIZE; |
| 6871 | dmac_flush_range((void *)table, |
| 6872 | (void *)table + SGLISTINFO_TABLE_SIZE); |
| 6873 | } |
| 6874 | reqd_len_sb_in = req.req_len + req.resp_len; |
| 6875 | if (qseecom.whitelist_support == true) |
| 6876 | *(uint32_t *)cmd_buf = QSEOS_TEE_INVOKE_COMMAND_WHITELIST; |
| 6877 | else |
| 6878 | *(uint32_t *)cmd_buf = QSEOS_TEE_INVOKE_COMMAND; |
| 6879 | |
| 6880 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 6881 | data->client.sb_virt, |
| 6882 | reqd_len_sb_in, |
| 6883 | ION_IOC_CLEAN_INV_CACHES); |
| 6884 | if (ret) { |
| 6885 | pr_err("cache operation failed %d\n", ret); |
| 6886 | return ret; |
| 6887 | } |
| 6888 | |
| 6889 | __qseecom_reentrancy_check_if_this_app_blocked(ptr_app); |
| 6890 | |
| 6891 | ret = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 6892 | cmd_buf, cmd_len, |
| 6893 | &resp, sizeof(resp)); |
| 6894 | if (ret) { |
| 6895 | pr_err("scm_call() failed with err: %d (app_id = %d)\n", |
| 6896 | ret, data->client.app_id); |
| 6897 | return ret; |
| 6898 | } |
| 6899 | |
| 6900 | if (qseecom.qsee_reentrancy_support) { |
| 6901 | ret = __qseecom_process_reentrancy(&resp, ptr_app, data); |
| 6902 | } else { |
| 6903 | if (resp.result == QSEOS_RESULT_INCOMPLETE) { |
| 6904 | ret = __qseecom_process_incomplete_cmd(data, &resp); |
| 6905 | if (ret) { |
| 6906 | pr_err("process_incomplete_cmd failed err: %d\n", |
| 6907 | ret); |
| 6908 | return ret; |
| 6909 | } |
| 6910 | } else { |
| 6911 | if (resp.result != QSEOS_RESULT_SUCCESS) { |
| 6912 | pr_err("Response result %d not supported\n", |
| 6913 | resp.result); |
| 6914 | ret = -EINVAL; |
| 6915 | } |
| 6916 | } |
| 6917 | } |
| 6918 | ret = __qseecom_update_qteec_req_buf(&req, data, true); |
| 6919 | if (ret) |
| 6920 | return ret; |
| 6921 | |
| 6922 | ret = msm_ion_do_cache_op(qseecom.ion_clnt, data->client.ihandle, |
| 6923 | data->client.sb_virt, data->client.sb_length, |
| 6924 | ION_IOC_INV_CACHES); |
| 6925 | if (ret) { |
| 6926 | pr_err("cache operation failed %d\n", ret); |
| 6927 | return ret; |
| 6928 | } |
| 6929 | return 0; |
| 6930 | } |
| 6931 | |
| 6932 | static int qseecom_qteec_request_cancellation(struct qseecom_dev_handle *data, |
| 6933 | void __user *argp) |
| 6934 | { |
| 6935 | struct qseecom_qteec_modfd_req req; |
| 6936 | int ret = 0; |
| 6937 | |
| 6938 | ret = copy_from_user(&req, argp, |
| 6939 | sizeof(struct qseecom_qteec_modfd_req)); |
| 6940 | if (ret) { |
| 6941 | pr_err("copy_from_user failed\n"); |
| 6942 | return ret; |
| 6943 | } |
| 6944 | ret = __qseecom_qteec_issue_cmd(data, (struct qseecom_qteec_req *)&req, |
| 6945 | QSEOS_TEE_REQUEST_CANCELLATION); |
| 6946 | |
| 6947 | return ret; |
| 6948 | } |
| 6949 | |
| 6950 | static void __qseecom_clean_data_sglistinfo(struct qseecom_dev_handle *data) |
| 6951 | { |
| 6952 | if (data->sglist_cnt) { |
| 6953 | memset(data->sglistinfo_ptr, 0, |
| 6954 | SGLISTINFO_TABLE_SIZE); |
| 6955 | data->sglist_cnt = 0; |
| 6956 | } |
| 6957 | } |
| 6958 | |
| 6959 | static inline long qseecom_ioctl(struct file *file, |
| 6960 | unsigned int cmd, unsigned long arg) |
| 6961 | { |
| 6962 | int ret = 0; |
| 6963 | struct qseecom_dev_handle *data = file->private_data; |
| 6964 | void __user *argp = (void __user *) arg; |
| 6965 | bool perf_enabled = false; |
| 6966 | |
| 6967 | if (!data) { |
| 6968 | pr_err("Invalid/uninitialized device handle\n"); |
| 6969 | return -EINVAL; |
| 6970 | } |
| 6971 | |
| 6972 | if (data->abort) { |
| 6973 | pr_err("Aborting qseecom driver\n"); |
| 6974 | return -ENODEV; |
| 6975 | } |
| 6976 | |
| 6977 | switch (cmd) { |
| 6978 | case QSEECOM_IOCTL_REGISTER_LISTENER_REQ: { |
| 6979 | if (data->type != QSEECOM_GENERIC) { |
| 6980 | pr_err("reg lstnr req: invalid handle (%d)\n", |
| 6981 | data->type); |
| 6982 | ret = -EINVAL; |
| 6983 | break; |
| 6984 | } |
| 6985 | pr_debug("ioctl register_listener_req()\n"); |
| 6986 | mutex_lock(&app_access_lock); |
| 6987 | atomic_inc(&data->ioctl_count); |
| 6988 | data->type = QSEECOM_LISTENER_SERVICE; |
| 6989 | ret = qseecom_register_listener(data, argp); |
| 6990 | atomic_dec(&data->ioctl_count); |
| 6991 | wake_up_all(&data->abort_wq); |
| 6992 | mutex_unlock(&app_access_lock); |
| 6993 | if (ret) |
| 6994 | pr_err("failed qseecom_register_listener: %d\n", ret); |
| 6995 | break; |
| 6996 | } |
| 6997 | case QSEECOM_IOCTL_UNREGISTER_LISTENER_REQ: { |
| 6998 | if ((data->listener.id == 0) || |
| 6999 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 7000 | pr_err("unreg lstnr req: invalid handle (%d) lid(%d)\n", |
| 7001 | data->type, data->listener.id); |
| 7002 | ret = -EINVAL; |
| 7003 | break; |
| 7004 | } |
| 7005 | pr_debug("ioctl unregister_listener_req()\n"); |
| 7006 | mutex_lock(&app_access_lock); |
| 7007 | atomic_inc(&data->ioctl_count); |
| 7008 | ret = qseecom_unregister_listener(data); |
| 7009 | atomic_dec(&data->ioctl_count); |
| 7010 | wake_up_all(&data->abort_wq); |
| 7011 | mutex_unlock(&app_access_lock); |
| 7012 | if (ret) |
| 7013 | pr_err("failed qseecom_unregister_listener: %d\n", ret); |
| 7014 | break; |
| 7015 | } |
| 7016 | case QSEECOM_IOCTL_SEND_CMD_REQ: { |
| 7017 | if ((data->client.app_id == 0) || |
| 7018 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7019 | pr_err("send cmd req: invalid handle (%d) app_id(%d)\n", |
| 7020 | data->type, data->client.app_id); |
| 7021 | ret = -EINVAL; |
| 7022 | break; |
| 7023 | } |
| 7024 | /* Only one client allowed here at a time */ |
| 7025 | mutex_lock(&app_access_lock); |
| 7026 | if (qseecom.support_bus_scaling) { |
| 7027 | /* register bus bw in case the client doesn't do it */ |
| 7028 | if (!data->mode) { |
| 7029 | mutex_lock(&qsee_bw_mutex); |
| 7030 | __qseecom_register_bus_bandwidth_needs( |
| 7031 | data, HIGH); |
| 7032 | mutex_unlock(&qsee_bw_mutex); |
| 7033 | } |
| 7034 | ret = qseecom_scale_bus_bandwidth_timer(INACTIVE); |
| 7035 | if (ret) { |
| 7036 | pr_err("Failed to set bw.\n"); |
| 7037 | ret = -EINVAL; |
| 7038 | mutex_unlock(&app_access_lock); |
| 7039 | break; |
| 7040 | } |
| 7041 | } |
| 7042 | /* |
| 7043 | * On targets where crypto clock is handled by HLOS, |
| 7044 | * if clk_access_cnt is zero and perf_enabled is false, |
| 7045 | * then the crypto clock was not enabled before sending cmd to |
| 7046 | * tz, qseecom will enable the clock to avoid service failure. |
| 7047 | */ |
| 7048 | if (!qseecom.no_clock_support && |
| 7049 | !qseecom.qsee.clk_access_cnt && !data->perf_enabled) { |
| 7050 | pr_debug("ce clock is not enabled!\n"); |
| 7051 | ret = qseecom_perf_enable(data); |
| 7052 | if (ret) { |
| 7053 | pr_err("Failed to vote for clock with err %d\n", |
| 7054 | ret); |
| 7055 | mutex_unlock(&app_access_lock); |
| 7056 | ret = -EINVAL; |
| 7057 | break; |
| 7058 | } |
| 7059 | perf_enabled = true; |
| 7060 | } |
| 7061 | atomic_inc(&data->ioctl_count); |
| 7062 | ret = qseecom_send_cmd(data, argp); |
| 7063 | if (qseecom.support_bus_scaling) |
| 7064 | __qseecom_add_bw_scale_down_timer( |
| 7065 | QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 7066 | if (perf_enabled) { |
| 7067 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 7068 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 7069 | } |
| 7070 | atomic_dec(&data->ioctl_count); |
| 7071 | wake_up_all(&data->abort_wq); |
| 7072 | mutex_unlock(&app_access_lock); |
| 7073 | if (ret) |
| 7074 | pr_err("failed qseecom_send_cmd: %d\n", ret); |
| 7075 | break; |
| 7076 | } |
| 7077 | case QSEECOM_IOCTL_SEND_MODFD_CMD_REQ: |
| 7078 | case QSEECOM_IOCTL_SEND_MODFD_CMD_64_REQ: { |
| 7079 | if ((data->client.app_id == 0) || |
| 7080 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7081 | pr_err("send mdfd cmd: invalid handle (%d) appid(%d)\n", |
| 7082 | data->type, data->client.app_id); |
| 7083 | ret = -EINVAL; |
| 7084 | break; |
| 7085 | } |
| 7086 | /* Only one client allowed here at a time */ |
| 7087 | mutex_lock(&app_access_lock); |
| 7088 | if (qseecom.support_bus_scaling) { |
| 7089 | if (!data->mode) { |
| 7090 | mutex_lock(&qsee_bw_mutex); |
| 7091 | __qseecom_register_bus_bandwidth_needs( |
| 7092 | data, HIGH); |
| 7093 | mutex_unlock(&qsee_bw_mutex); |
| 7094 | } |
| 7095 | ret = qseecom_scale_bus_bandwidth_timer(INACTIVE); |
| 7096 | if (ret) { |
| 7097 | pr_err("Failed to set bw.\n"); |
| 7098 | mutex_unlock(&app_access_lock); |
| 7099 | ret = -EINVAL; |
| 7100 | break; |
| 7101 | } |
| 7102 | } |
| 7103 | /* |
| 7104 | * On targets where crypto clock is handled by HLOS, |
| 7105 | * if clk_access_cnt is zero and perf_enabled is false, |
| 7106 | * then the crypto clock was not enabled before sending cmd to |
| 7107 | * tz, qseecom will enable the clock to avoid service failure. |
| 7108 | */ |
| 7109 | if (!qseecom.no_clock_support && |
| 7110 | !qseecom.qsee.clk_access_cnt && !data->perf_enabled) { |
| 7111 | pr_debug("ce clock is not enabled!\n"); |
| 7112 | ret = qseecom_perf_enable(data); |
| 7113 | if (ret) { |
| 7114 | pr_err("Failed to vote for clock with err %d\n", |
| 7115 | ret); |
| 7116 | mutex_unlock(&app_access_lock); |
| 7117 | ret = -EINVAL; |
| 7118 | break; |
| 7119 | } |
| 7120 | perf_enabled = true; |
| 7121 | } |
| 7122 | atomic_inc(&data->ioctl_count); |
| 7123 | if (cmd == QSEECOM_IOCTL_SEND_MODFD_CMD_REQ) |
| 7124 | ret = qseecom_send_modfd_cmd(data, argp); |
| 7125 | else |
| 7126 | ret = qseecom_send_modfd_cmd_64(data, argp); |
| 7127 | if (qseecom.support_bus_scaling) |
| 7128 | __qseecom_add_bw_scale_down_timer( |
| 7129 | QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 7130 | if (perf_enabled) { |
| 7131 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 7132 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 7133 | } |
| 7134 | atomic_dec(&data->ioctl_count); |
| 7135 | wake_up_all(&data->abort_wq); |
| 7136 | mutex_unlock(&app_access_lock); |
| 7137 | if (ret) |
| 7138 | pr_err("failed qseecom_send_cmd: %d\n", ret); |
| 7139 | __qseecom_clean_data_sglistinfo(data); |
| 7140 | break; |
| 7141 | } |
| 7142 | case QSEECOM_IOCTL_RECEIVE_REQ: { |
| 7143 | if ((data->listener.id == 0) || |
| 7144 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 7145 | pr_err("receive req: invalid handle (%d), lid(%d)\n", |
| 7146 | data->type, data->listener.id); |
| 7147 | ret = -EINVAL; |
| 7148 | break; |
| 7149 | } |
| 7150 | atomic_inc(&data->ioctl_count); |
| 7151 | ret = qseecom_receive_req(data); |
| 7152 | atomic_dec(&data->ioctl_count); |
| 7153 | wake_up_all(&data->abort_wq); |
| 7154 | if (ret && (ret != -ERESTARTSYS)) |
| 7155 | pr_err("failed qseecom_receive_req: %d\n", ret); |
| 7156 | break; |
| 7157 | } |
| 7158 | case QSEECOM_IOCTL_SEND_RESP_REQ: { |
| 7159 | if ((data->listener.id == 0) || |
| 7160 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 7161 | pr_err("send resp req: invalid handle (%d), lid(%d)\n", |
| 7162 | data->type, data->listener.id); |
| 7163 | ret = -EINVAL; |
| 7164 | break; |
| 7165 | } |
| 7166 | atomic_inc(&data->ioctl_count); |
| 7167 | if (!qseecom.qsee_reentrancy_support) |
| 7168 | ret = qseecom_send_resp(); |
| 7169 | else |
| 7170 | ret = qseecom_reentrancy_send_resp(data); |
| 7171 | atomic_dec(&data->ioctl_count); |
| 7172 | wake_up_all(&data->abort_wq); |
| 7173 | if (ret) |
| 7174 | pr_err("failed qseecom_send_resp: %d\n", ret); |
| 7175 | break; |
| 7176 | } |
| 7177 | case QSEECOM_IOCTL_SET_MEM_PARAM_REQ: { |
| 7178 | if ((data->type != QSEECOM_CLIENT_APP) && |
| 7179 | (data->type != QSEECOM_GENERIC) && |
| 7180 | (data->type != QSEECOM_SECURE_SERVICE)) { |
| 7181 | pr_err("set mem param req: invalid handle (%d)\n", |
| 7182 | data->type); |
| 7183 | ret = -EINVAL; |
| 7184 | break; |
| 7185 | } |
| 7186 | pr_debug("SET_MEM_PARAM: qseecom addr = 0x%pK\n", data); |
| 7187 | mutex_lock(&app_access_lock); |
| 7188 | atomic_inc(&data->ioctl_count); |
| 7189 | ret = qseecom_set_client_mem_param(data, argp); |
| 7190 | atomic_dec(&data->ioctl_count); |
| 7191 | mutex_unlock(&app_access_lock); |
| 7192 | if (ret) |
| 7193 | pr_err("failed Qqseecom_set_mem_param request: %d\n", |
| 7194 | ret); |
| 7195 | break; |
| 7196 | } |
| 7197 | case QSEECOM_IOCTL_LOAD_APP_REQ: { |
| 7198 | if ((data->type != QSEECOM_GENERIC) && |
| 7199 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7200 | pr_err("load app req: invalid handle (%d)\n", |
| 7201 | data->type); |
| 7202 | ret = -EINVAL; |
| 7203 | break; |
| 7204 | } |
| 7205 | data->type = QSEECOM_CLIENT_APP; |
| 7206 | pr_debug("LOAD_APP_REQ: qseecom_addr = 0x%pK\n", data); |
| 7207 | mutex_lock(&app_access_lock); |
| 7208 | atomic_inc(&data->ioctl_count); |
| 7209 | ret = qseecom_load_app(data, argp); |
| 7210 | atomic_dec(&data->ioctl_count); |
| 7211 | mutex_unlock(&app_access_lock); |
| 7212 | if (ret) |
| 7213 | pr_err("failed load_app request: %d\n", ret); |
| 7214 | break; |
| 7215 | } |
| 7216 | case QSEECOM_IOCTL_UNLOAD_APP_REQ: { |
| 7217 | if ((data->client.app_id == 0) || |
| 7218 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7219 | pr_err("unload app req:invalid handle(%d) app_id(%d)\n", |
| 7220 | data->type, data->client.app_id); |
| 7221 | ret = -EINVAL; |
| 7222 | break; |
| 7223 | } |
| 7224 | pr_debug("UNLOAD_APP: qseecom_addr = 0x%pK\n", data); |
| 7225 | mutex_lock(&app_access_lock); |
| 7226 | atomic_inc(&data->ioctl_count); |
| 7227 | ret = qseecom_unload_app(data, false); |
| 7228 | atomic_dec(&data->ioctl_count); |
| 7229 | mutex_unlock(&app_access_lock); |
| 7230 | if (ret) |
| 7231 | pr_err("failed unload_app request: %d\n", ret); |
| 7232 | break; |
| 7233 | } |
| 7234 | case QSEECOM_IOCTL_GET_QSEOS_VERSION_REQ: { |
| 7235 | atomic_inc(&data->ioctl_count); |
| 7236 | ret = qseecom_get_qseos_version(data, argp); |
| 7237 | if (ret) |
| 7238 | pr_err("qseecom_get_qseos_version: %d\n", ret); |
| 7239 | atomic_dec(&data->ioctl_count); |
| 7240 | break; |
| 7241 | } |
| 7242 | case QSEECOM_IOCTL_PERF_ENABLE_REQ:{ |
| 7243 | if ((data->type != QSEECOM_GENERIC) && |
| 7244 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7245 | pr_err("perf enable req: invalid handle (%d)\n", |
| 7246 | data->type); |
| 7247 | ret = -EINVAL; |
| 7248 | break; |
| 7249 | } |
| 7250 | if ((data->type == QSEECOM_CLIENT_APP) && |
| 7251 | (data->client.app_id == 0)) { |
| 7252 | pr_err("perf enable req:invalid handle(%d) appid(%d)\n", |
| 7253 | data->type, data->client.app_id); |
| 7254 | ret = -EINVAL; |
| 7255 | break; |
| 7256 | } |
| 7257 | atomic_inc(&data->ioctl_count); |
| 7258 | if (qseecom.support_bus_scaling) { |
| 7259 | mutex_lock(&qsee_bw_mutex); |
| 7260 | __qseecom_register_bus_bandwidth_needs(data, HIGH); |
| 7261 | mutex_unlock(&qsee_bw_mutex); |
| 7262 | } else { |
| 7263 | ret = qseecom_perf_enable(data); |
| 7264 | if (ret) |
| 7265 | pr_err("Fail to vote for clocks %d\n", ret); |
| 7266 | } |
| 7267 | atomic_dec(&data->ioctl_count); |
| 7268 | break; |
| 7269 | } |
| 7270 | case QSEECOM_IOCTL_PERF_DISABLE_REQ:{ |
| 7271 | if ((data->type != QSEECOM_SECURE_SERVICE) && |
| 7272 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7273 | pr_err("perf disable req: invalid handle (%d)\n", |
| 7274 | data->type); |
| 7275 | ret = -EINVAL; |
| 7276 | break; |
| 7277 | } |
| 7278 | if ((data->type == QSEECOM_CLIENT_APP) && |
| 7279 | (data->client.app_id == 0)) { |
| 7280 | pr_err("perf disable: invalid handle (%d)app_id(%d)\n", |
| 7281 | data->type, data->client.app_id); |
| 7282 | ret = -EINVAL; |
| 7283 | break; |
| 7284 | } |
| 7285 | atomic_inc(&data->ioctl_count); |
| 7286 | if (!qseecom.support_bus_scaling) { |
| 7287 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 7288 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 7289 | } else { |
| 7290 | mutex_lock(&qsee_bw_mutex); |
| 7291 | qseecom_unregister_bus_bandwidth_needs(data); |
| 7292 | mutex_unlock(&qsee_bw_mutex); |
| 7293 | } |
| 7294 | atomic_dec(&data->ioctl_count); |
| 7295 | break; |
| 7296 | } |
| 7297 | |
| 7298 | case QSEECOM_IOCTL_SET_BUS_SCALING_REQ: { |
| 7299 | /* If crypto clock is not handled by HLOS, return directly. */ |
| 7300 | if (qseecom.no_clock_support) { |
| 7301 | pr_debug("crypto clock is not handled by HLOS\n"); |
| 7302 | break; |
| 7303 | } |
| 7304 | if ((data->client.app_id == 0) || |
| 7305 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7306 | pr_err("set bus scale: invalid handle (%d) appid(%d)\n", |
| 7307 | data->type, data->client.app_id); |
| 7308 | ret = -EINVAL; |
| 7309 | break; |
| 7310 | } |
| 7311 | atomic_inc(&data->ioctl_count); |
| 7312 | ret = qseecom_scale_bus_bandwidth(data, argp); |
| 7313 | atomic_dec(&data->ioctl_count); |
| 7314 | break; |
| 7315 | } |
| 7316 | case QSEECOM_IOCTL_LOAD_EXTERNAL_ELF_REQ: { |
| 7317 | if (data->type != QSEECOM_GENERIC) { |
| 7318 | pr_err("load ext elf req: invalid client handle (%d)\n", |
| 7319 | data->type); |
| 7320 | ret = -EINVAL; |
| 7321 | break; |
| 7322 | } |
| 7323 | data->type = QSEECOM_UNAVAILABLE_CLIENT_APP; |
| 7324 | data->released = true; |
| 7325 | mutex_lock(&app_access_lock); |
| 7326 | atomic_inc(&data->ioctl_count); |
| 7327 | ret = qseecom_load_external_elf(data, argp); |
| 7328 | atomic_dec(&data->ioctl_count); |
| 7329 | mutex_unlock(&app_access_lock); |
| 7330 | if (ret) |
| 7331 | pr_err("failed load_external_elf request: %d\n", ret); |
| 7332 | break; |
| 7333 | } |
| 7334 | case QSEECOM_IOCTL_UNLOAD_EXTERNAL_ELF_REQ: { |
| 7335 | if (data->type != QSEECOM_UNAVAILABLE_CLIENT_APP) { |
| 7336 | pr_err("unload ext elf req: invalid handle (%d)\n", |
| 7337 | data->type); |
| 7338 | ret = -EINVAL; |
| 7339 | break; |
| 7340 | } |
| 7341 | data->released = true; |
| 7342 | mutex_lock(&app_access_lock); |
| 7343 | atomic_inc(&data->ioctl_count); |
| 7344 | ret = qseecom_unload_external_elf(data); |
| 7345 | atomic_dec(&data->ioctl_count); |
| 7346 | mutex_unlock(&app_access_lock); |
| 7347 | if (ret) |
| 7348 | pr_err("failed unload_app request: %d\n", ret); |
| 7349 | break; |
| 7350 | } |
| 7351 | case QSEECOM_IOCTL_APP_LOADED_QUERY_REQ: { |
| 7352 | data->type = QSEECOM_CLIENT_APP; |
| 7353 | mutex_lock(&app_access_lock); |
| 7354 | atomic_inc(&data->ioctl_count); |
| 7355 | pr_debug("APP_LOAD_QUERY: qseecom_addr = 0x%pK\n", data); |
| 7356 | ret = qseecom_query_app_loaded(data, argp); |
| 7357 | atomic_dec(&data->ioctl_count); |
| 7358 | mutex_unlock(&app_access_lock); |
| 7359 | break; |
| 7360 | } |
| 7361 | case QSEECOM_IOCTL_SEND_CMD_SERVICE_REQ: { |
| 7362 | if (data->type != QSEECOM_GENERIC) { |
| 7363 | pr_err("send cmd svc req: invalid handle (%d)\n", |
| 7364 | data->type); |
| 7365 | ret = -EINVAL; |
| 7366 | break; |
| 7367 | } |
| 7368 | data->type = QSEECOM_SECURE_SERVICE; |
| 7369 | if (qseecom.qsee_version < QSEE_VERSION_03) { |
| 7370 | pr_err("SEND_CMD_SERVICE_REQ: Invalid qsee ver %u\n", |
| 7371 | qseecom.qsee_version); |
| 7372 | return -EINVAL; |
| 7373 | } |
| 7374 | mutex_lock(&app_access_lock); |
| 7375 | atomic_inc(&data->ioctl_count); |
| 7376 | ret = qseecom_send_service_cmd(data, argp); |
| 7377 | atomic_dec(&data->ioctl_count); |
| 7378 | mutex_unlock(&app_access_lock); |
| 7379 | break; |
| 7380 | } |
| 7381 | case QSEECOM_IOCTL_CREATE_KEY_REQ: { |
| 7382 | if (!(qseecom.support_pfe || qseecom.support_fde)) |
| 7383 | pr_err("Features requiring key init not supported\n"); |
| 7384 | if (data->type != QSEECOM_GENERIC) { |
| 7385 | pr_err("create key req: invalid handle (%d)\n", |
| 7386 | data->type); |
| 7387 | ret = -EINVAL; |
| 7388 | break; |
| 7389 | } |
| 7390 | if (qseecom.qsee_version < QSEE_VERSION_05) { |
| 7391 | pr_err("Create Key feature unsupported: qsee ver %u\n", |
| 7392 | qseecom.qsee_version); |
| 7393 | return -EINVAL; |
| 7394 | } |
| 7395 | data->released = true; |
| 7396 | mutex_lock(&app_access_lock); |
| 7397 | atomic_inc(&data->ioctl_count); |
| 7398 | ret = qseecom_create_key(data, argp); |
| 7399 | if (ret) |
| 7400 | pr_err("failed to create encryption key: %d\n", ret); |
| 7401 | |
| 7402 | atomic_dec(&data->ioctl_count); |
| 7403 | mutex_unlock(&app_access_lock); |
| 7404 | break; |
| 7405 | } |
| 7406 | case QSEECOM_IOCTL_WIPE_KEY_REQ: { |
| 7407 | if (!(qseecom.support_pfe || qseecom.support_fde)) |
| 7408 | pr_err("Features requiring key init not supported\n"); |
| 7409 | if (data->type != QSEECOM_GENERIC) { |
| 7410 | pr_err("wipe key req: invalid handle (%d)\n", |
| 7411 | data->type); |
| 7412 | ret = -EINVAL; |
| 7413 | break; |
| 7414 | } |
| 7415 | if (qseecom.qsee_version < QSEE_VERSION_05) { |
| 7416 | pr_err("Wipe Key feature unsupported in qsee ver %u\n", |
| 7417 | qseecom.qsee_version); |
| 7418 | return -EINVAL; |
| 7419 | } |
| 7420 | data->released = true; |
| 7421 | mutex_lock(&app_access_lock); |
| 7422 | atomic_inc(&data->ioctl_count); |
| 7423 | ret = qseecom_wipe_key(data, argp); |
| 7424 | if (ret) |
| 7425 | pr_err("failed to wipe encryption key: %d\n", ret); |
| 7426 | atomic_dec(&data->ioctl_count); |
| 7427 | mutex_unlock(&app_access_lock); |
| 7428 | break; |
| 7429 | } |
| 7430 | case QSEECOM_IOCTL_UPDATE_KEY_USER_INFO_REQ: { |
| 7431 | if (!(qseecom.support_pfe || qseecom.support_fde)) |
| 7432 | pr_err("Features requiring key init not supported\n"); |
| 7433 | if (data->type != QSEECOM_GENERIC) { |
| 7434 | pr_err("update key req: invalid handle (%d)\n", |
| 7435 | data->type); |
| 7436 | ret = -EINVAL; |
| 7437 | break; |
| 7438 | } |
| 7439 | if (qseecom.qsee_version < QSEE_VERSION_05) { |
| 7440 | pr_err("Update Key feature unsupported in qsee ver %u\n", |
| 7441 | qseecom.qsee_version); |
| 7442 | return -EINVAL; |
| 7443 | } |
| 7444 | data->released = true; |
| 7445 | mutex_lock(&app_access_lock); |
| 7446 | atomic_inc(&data->ioctl_count); |
| 7447 | ret = qseecom_update_key_user_info(data, argp); |
| 7448 | if (ret) |
| 7449 | pr_err("failed to update key user info: %d\n", ret); |
| 7450 | atomic_dec(&data->ioctl_count); |
| 7451 | mutex_unlock(&app_access_lock); |
| 7452 | break; |
| 7453 | } |
| 7454 | case QSEECOM_IOCTL_SAVE_PARTITION_HASH_REQ: { |
| 7455 | if (data->type != QSEECOM_GENERIC) { |
| 7456 | pr_err("save part hash req: invalid handle (%d)\n", |
| 7457 | data->type); |
| 7458 | ret = -EINVAL; |
| 7459 | break; |
| 7460 | } |
| 7461 | data->released = true; |
| 7462 | mutex_lock(&app_access_lock); |
| 7463 | atomic_inc(&data->ioctl_count); |
| 7464 | ret = qseecom_save_partition_hash(argp); |
| 7465 | atomic_dec(&data->ioctl_count); |
| 7466 | mutex_unlock(&app_access_lock); |
| 7467 | break; |
| 7468 | } |
| 7469 | case QSEECOM_IOCTL_IS_ES_ACTIVATED_REQ: { |
| 7470 | if (data->type != QSEECOM_GENERIC) { |
| 7471 | pr_err("ES activated req: invalid handle (%d)\n", |
| 7472 | data->type); |
| 7473 | ret = -EINVAL; |
| 7474 | break; |
| 7475 | } |
| 7476 | data->released = true; |
| 7477 | mutex_lock(&app_access_lock); |
| 7478 | atomic_inc(&data->ioctl_count); |
| 7479 | ret = qseecom_is_es_activated(argp); |
| 7480 | atomic_dec(&data->ioctl_count); |
| 7481 | mutex_unlock(&app_access_lock); |
| 7482 | break; |
| 7483 | } |
| 7484 | case QSEECOM_IOCTL_MDTP_CIPHER_DIP_REQ: { |
| 7485 | if (data->type != QSEECOM_GENERIC) { |
| 7486 | pr_err("MDTP cipher DIP req: invalid handle (%d)\n", |
| 7487 | data->type); |
| 7488 | ret = -EINVAL; |
| 7489 | break; |
| 7490 | } |
| 7491 | data->released = true; |
| 7492 | mutex_lock(&app_access_lock); |
| 7493 | atomic_inc(&data->ioctl_count); |
| 7494 | ret = qseecom_mdtp_cipher_dip(argp); |
| 7495 | atomic_dec(&data->ioctl_count); |
| 7496 | mutex_unlock(&app_access_lock); |
| 7497 | break; |
| 7498 | } |
| 7499 | case QSEECOM_IOCTL_SEND_MODFD_RESP: |
| 7500 | case QSEECOM_IOCTL_SEND_MODFD_RESP_64: { |
| 7501 | if ((data->listener.id == 0) || |
| 7502 | (data->type != QSEECOM_LISTENER_SERVICE)) { |
| 7503 | pr_err("receive req: invalid handle (%d), lid(%d)\n", |
| 7504 | data->type, data->listener.id); |
| 7505 | ret = -EINVAL; |
| 7506 | break; |
| 7507 | } |
| 7508 | atomic_inc(&data->ioctl_count); |
| 7509 | if (cmd == QSEECOM_IOCTL_SEND_MODFD_RESP) |
| 7510 | ret = qseecom_send_modfd_resp(data, argp); |
| 7511 | else |
| 7512 | ret = qseecom_send_modfd_resp_64(data, argp); |
| 7513 | atomic_dec(&data->ioctl_count); |
| 7514 | wake_up_all(&data->abort_wq); |
| 7515 | if (ret) |
| 7516 | pr_err("failed qseecom_send_mod_resp: %d\n", ret); |
| 7517 | __qseecom_clean_data_sglistinfo(data); |
| 7518 | break; |
| 7519 | } |
| 7520 | case QSEECOM_QTEEC_IOCTL_OPEN_SESSION_REQ: { |
| 7521 | if ((data->client.app_id == 0) || |
| 7522 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7523 | pr_err("Open session: invalid handle (%d) appid(%d)\n", |
| 7524 | data->type, data->client.app_id); |
| 7525 | ret = -EINVAL; |
| 7526 | break; |
| 7527 | } |
| 7528 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 7529 | pr_err("GP feature unsupported: qsee ver %u\n", |
| 7530 | qseecom.qsee_version); |
| 7531 | return -EINVAL; |
| 7532 | } |
| 7533 | /* Only one client allowed here at a time */ |
| 7534 | mutex_lock(&app_access_lock); |
| 7535 | atomic_inc(&data->ioctl_count); |
| 7536 | ret = qseecom_qteec_open_session(data, argp); |
| 7537 | atomic_dec(&data->ioctl_count); |
| 7538 | wake_up_all(&data->abort_wq); |
| 7539 | mutex_unlock(&app_access_lock); |
| 7540 | if (ret) |
| 7541 | pr_err("failed open_session_cmd: %d\n", ret); |
| 7542 | __qseecom_clean_data_sglistinfo(data); |
| 7543 | break; |
| 7544 | } |
| 7545 | case QSEECOM_QTEEC_IOCTL_CLOSE_SESSION_REQ: { |
| 7546 | if ((data->client.app_id == 0) || |
| 7547 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7548 | pr_err("Close session: invalid handle (%d) appid(%d)\n", |
| 7549 | data->type, data->client.app_id); |
| 7550 | ret = -EINVAL; |
| 7551 | break; |
| 7552 | } |
| 7553 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 7554 | pr_err("GP feature unsupported: qsee ver %u\n", |
| 7555 | qseecom.qsee_version); |
| 7556 | return -EINVAL; |
| 7557 | } |
| 7558 | /* Only one client allowed here at a time */ |
| 7559 | mutex_lock(&app_access_lock); |
| 7560 | atomic_inc(&data->ioctl_count); |
| 7561 | ret = qseecom_qteec_close_session(data, argp); |
| 7562 | atomic_dec(&data->ioctl_count); |
| 7563 | wake_up_all(&data->abort_wq); |
| 7564 | mutex_unlock(&app_access_lock); |
| 7565 | if (ret) |
| 7566 | pr_err("failed close_session_cmd: %d\n", ret); |
| 7567 | break; |
| 7568 | } |
| 7569 | case QSEECOM_QTEEC_IOCTL_INVOKE_MODFD_CMD_REQ: { |
| 7570 | if ((data->client.app_id == 0) || |
| 7571 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7572 | pr_err("Invoke cmd: invalid handle (%d) appid(%d)\n", |
| 7573 | data->type, data->client.app_id); |
| 7574 | ret = -EINVAL; |
| 7575 | break; |
| 7576 | } |
| 7577 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 7578 | pr_err("GP feature unsupported: qsee ver %u\n", |
| 7579 | qseecom.qsee_version); |
| 7580 | return -EINVAL; |
| 7581 | } |
| 7582 | /* Only one client allowed here at a time */ |
| 7583 | mutex_lock(&app_access_lock); |
| 7584 | atomic_inc(&data->ioctl_count); |
| 7585 | ret = qseecom_qteec_invoke_modfd_cmd(data, argp); |
| 7586 | atomic_dec(&data->ioctl_count); |
| 7587 | wake_up_all(&data->abort_wq); |
| 7588 | mutex_unlock(&app_access_lock); |
| 7589 | if (ret) |
| 7590 | pr_err("failed Invoke cmd: %d\n", ret); |
| 7591 | __qseecom_clean_data_sglistinfo(data); |
| 7592 | break; |
| 7593 | } |
| 7594 | case QSEECOM_QTEEC_IOCTL_REQUEST_CANCELLATION_REQ: { |
| 7595 | if ((data->client.app_id == 0) || |
| 7596 | (data->type != QSEECOM_CLIENT_APP)) { |
| 7597 | pr_err("Cancel req: invalid handle (%d) appid(%d)\n", |
| 7598 | data->type, data->client.app_id); |
| 7599 | ret = -EINVAL; |
| 7600 | break; |
| 7601 | } |
| 7602 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 7603 | pr_err("GP feature unsupported: qsee ver %u\n", |
| 7604 | qseecom.qsee_version); |
| 7605 | return -EINVAL; |
| 7606 | } |
| 7607 | /* Only one client allowed here at a time */ |
| 7608 | mutex_lock(&app_access_lock); |
| 7609 | atomic_inc(&data->ioctl_count); |
| 7610 | ret = qseecom_qteec_request_cancellation(data, argp); |
| 7611 | atomic_dec(&data->ioctl_count); |
| 7612 | wake_up_all(&data->abort_wq); |
| 7613 | mutex_unlock(&app_access_lock); |
| 7614 | if (ret) |
| 7615 | pr_err("failed request_cancellation: %d\n", ret); |
| 7616 | break; |
| 7617 | } |
| 7618 | case QSEECOM_IOCTL_GET_CE_PIPE_INFO: { |
| 7619 | atomic_inc(&data->ioctl_count); |
| 7620 | ret = qseecom_get_ce_info(data, argp); |
| 7621 | if (ret) |
| 7622 | pr_err("failed get fde ce pipe info: %d\n", ret); |
| 7623 | atomic_dec(&data->ioctl_count); |
| 7624 | break; |
| 7625 | } |
| 7626 | case QSEECOM_IOCTL_FREE_CE_PIPE_INFO: { |
| 7627 | atomic_inc(&data->ioctl_count); |
| 7628 | ret = qseecom_free_ce_info(data, argp); |
| 7629 | if (ret) |
| 7630 | pr_err("failed get fde ce pipe info: %d\n", ret); |
| 7631 | atomic_dec(&data->ioctl_count); |
| 7632 | break; |
| 7633 | } |
| 7634 | case QSEECOM_IOCTL_QUERY_CE_PIPE_INFO: { |
| 7635 | atomic_inc(&data->ioctl_count); |
| 7636 | ret = qseecom_query_ce_info(data, argp); |
| 7637 | if (ret) |
| 7638 | pr_err("failed get fde ce pipe info: %d\n", ret); |
| 7639 | atomic_dec(&data->ioctl_count); |
| 7640 | break; |
| 7641 | } |
| 7642 | default: |
| 7643 | pr_err("Invalid IOCTL: 0x%x\n", cmd); |
| 7644 | return -EINVAL; |
| 7645 | } |
| 7646 | return ret; |
| 7647 | } |
| 7648 | |
| 7649 | static int qseecom_open(struct inode *inode, struct file *file) |
| 7650 | { |
| 7651 | int ret = 0; |
| 7652 | struct qseecom_dev_handle *data; |
| 7653 | |
| 7654 | data = kzalloc(sizeof(*data), GFP_KERNEL); |
| 7655 | if (!data) |
| 7656 | return -ENOMEM; |
| 7657 | file->private_data = data; |
| 7658 | data->abort = 0; |
| 7659 | data->type = QSEECOM_GENERIC; |
| 7660 | data->released = false; |
| 7661 | memset((void *)data->client.app_name, 0, MAX_APP_NAME_SIZE); |
| 7662 | data->mode = INACTIVE; |
| 7663 | init_waitqueue_head(&data->abort_wq); |
| 7664 | atomic_set(&data->ioctl_count, 0); |
| 7665 | return ret; |
| 7666 | } |
| 7667 | |
| 7668 | static int qseecom_release(struct inode *inode, struct file *file) |
| 7669 | { |
| 7670 | struct qseecom_dev_handle *data = file->private_data; |
| 7671 | int ret = 0; |
| 7672 | |
| 7673 | if (data->released == false) { |
| 7674 | pr_debug("data: released=false, type=%d, mode=%d, data=0x%pK\n", |
| 7675 | data->type, data->mode, data); |
| 7676 | switch (data->type) { |
| 7677 | case QSEECOM_LISTENER_SERVICE: |
| 7678 | mutex_lock(&app_access_lock); |
| 7679 | ret = qseecom_unregister_listener(data); |
| 7680 | mutex_unlock(&app_access_lock); |
| 7681 | break; |
| 7682 | case QSEECOM_CLIENT_APP: |
| 7683 | mutex_lock(&app_access_lock); |
| 7684 | ret = qseecom_unload_app(data, true); |
| 7685 | mutex_unlock(&app_access_lock); |
| 7686 | break; |
| 7687 | case QSEECOM_SECURE_SERVICE: |
| 7688 | case QSEECOM_GENERIC: |
| 7689 | ret = qseecom_unmap_ion_allocated_memory(data); |
| 7690 | if (ret) |
| 7691 | pr_err("Ion Unmap failed\n"); |
| 7692 | break; |
| 7693 | case QSEECOM_UNAVAILABLE_CLIENT_APP: |
| 7694 | break; |
| 7695 | default: |
| 7696 | pr_err("Unsupported clnt_handle_type %d", |
| 7697 | data->type); |
| 7698 | break; |
| 7699 | } |
| 7700 | } |
| 7701 | |
| 7702 | if (qseecom.support_bus_scaling) { |
| 7703 | mutex_lock(&qsee_bw_mutex); |
| 7704 | if (data->mode != INACTIVE) { |
| 7705 | qseecom_unregister_bus_bandwidth_needs(data); |
| 7706 | if (qseecom.cumulative_mode == INACTIVE) { |
| 7707 | ret = __qseecom_set_msm_bus_request(INACTIVE); |
| 7708 | if (ret) |
| 7709 | pr_err("Fail to scale down bus\n"); |
| 7710 | } |
| 7711 | } |
| 7712 | mutex_unlock(&qsee_bw_mutex); |
| 7713 | } else { |
| 7714 | if (data->fast_load_enabled == true) |
| 7715 | qsee_disable_clock_vote(data, CLK_SFPB); |
| 7716 | if (data->perf_enabled == true) |
| 7717 | qsee_disable_clock_vote(data, CLK_DFAB); |
| 7718 | } |
| 7719 | kfree(data); |
| 7720 | |
| 7721 | return ret; |
| 7722 | } |
| 7723 | |
| 7724 | #ifdef CONFIG_COMPAT |
| 7725 | #include "compat_qseecom.c" |
| 7726 | #else |
| 7727 | #define compat_qseecom_ioctl NULL |
| 7728 | #endif |
| 7729 | |
| 7730 | static const struct file_operations qseecom_fops = { |
| 7731 | .owner = THIS_MODULE, |
| 7732 | .unlocked_ioctl = qseecom_ioctl, |
| 7733 | .compat_ioctl = compat_qseecom_ioctl, |
| 7734 | .open = qseecom_open, |
| 7735 | .release = qseecom_release |
| 7736 | }; |
| 7737 | |
| 7738 | static int __qseecom_init_clk(enum qseecom_ce_hw_instance ce) |
| 7739 | { |
| 7740 | int rc = 0; |
| 7741 | struct device *pdev; |
| 7742 | struct qseecom_clk *qclk; |
| 7743 | char *core_clk_src = NULL; |
| 7744 | char *core_clk = NULL; |
| 7745 | char *iface_clk = NULL; |
| 7746 | char *bus_clk = NULL; |
| 7747 | |
| 7748 | switch (ce) { |
| 7749 | case CLK_QSEE: { |
| 7750 | core_clk_src = "core_clk_src"; |
| 7751 | core_clk = "core_clk"; |
| 7752 | iface_clk = "iface_clk"; |
| 7753 | bus_clk = "bus_clk"; |
| 7754 | qclk = &qseecom.qsee; |
| 7755 | qclk->instance = CLK_QSEE; |
| 7756 | break; |
| 7757 | }; |
| 7758 | case CLK_CE_DRV: { |
| 7759 | core_clk_src = "ce_drv_core_clk_src"; |
| 7760 | core_clk = "ce_drv_core_clk"; |
| 7761 | iface_clk = "ce_drv_iface_clk"; |
| 7762 | bus_clk = "ce_drv_bus_clk"; |
| 7763 | qclk = &qseecom.ce_drv; |
| 7764 | qclk->instance = CLK_CE_DRV; |
| 7765 | break; |
| 7766 | }; |
| 7767 | default: |
| 7768 | pr_err("Invalid ce hw instance: %d!\n", ce); |
| 7769 | return -EIO; |
| 7770 | } |
| 7771 | |
| 7772 | if (qseecom.no_clock_support) { |
| 7773 | qclk->ce_core_clk = NULL; |
| 7774 | qclk->ce_clk = NULL; |
| 7775 | qclk->ce_bus_clk = NULL; |
| 7776 | qclk->ce_core_src_clk = NULL; |
| 7777 | return 0; |
| 7778 | } |
| 7779 | |
| 7780 | pdev = qseecom.pdev; |
| 7781 | |
| 7782 | /* Get CE3 src core clk. */ |
| 7783 | qclk->ce_core_src_clk = clk_get(pdev, core_clk_src); |
| 7784 | if (!IS_ERR(qclk->ce_core_src_clk)) { |
| 7785 | rc = clk_set_rate(qclk->ce_core_src_clk, |
| 7786 | qseecom.ce_opp_freq_hz); |
| 7787 | if (rc) { |
| 7788 | clk_put(qclk->ce_core_src_clk); |
| 7789 | qclk->ce_core_src_clk = NULL; |
| 7790 | pr_err("Unable to set the core src clk @%uMhz.\n", |
| 7791 | qseecom.ce_opp_freq_hz/CE_CLK_DIV); |
| 7792 | return -EIO; |
| 7793 | } |
| 7794 | } else { |
| 7795 | pr_warn("Unable to get CE core src clk, set to NULL\n"); |
| 7796 | qclk->ce_core_src_clk = NULL; |
| 7797 | } |
| 7798 | |
| 7799 | /* Get CE core clk */ |
| 7800 | qclk->ce_core_clk = clk_get(pdev, core_clk); |
| 7801 | if (IS_ERR(qclk->ce_core_clk)) { |
| 7802 | rc = PTR_ERR(qclk->ce_core_clk); |
| 7803 | pr_err("Unable to get CE core clk\n"); |
| 7804 | if (qclk->ce_core_src_clk != NULL) |
| 7805 | clk_put(qclk->ce_core_src_clk); |
| 7806 | return -EIO; |
| 7807 | } |
| 7808 | |
| 7809 | /* Get CE Interface clk */ |
| 7810 | qclk->ce_clk = clk_get(pdev, iface_clk); |
| 7811 | if (IS_ERR(qclk->ce_clk)) { |
| 7812 | rc = PTR_ERR(qclk->ce_clk); |
| 7813 | pr_err("Unable to get CE interface clk\n"); |
| 7814 | if (qclk->ce_core_src_clk != NULL) |
| 7815 | clk_put(qclk->ce_core_src_clk); |
| 7816 | clk_put(qclk->ce_core_clk); |
| 7817 | return -EIO; |
| 7818 | } |
| 7819 | |
| 7820 | /* Get CE AXI clk */ |
| 7821 | qclk->ce_bus_clk = clk_get(pdev, bus_clk); |
| 7822 | if (IS_ERR(qclk->ce_bus_clk)) { |
| 7823 | rc = PTR_ERR(qclk->ce_bus_clk); |
| 7824 | pr_err("Unable to get CE BUS interface clk\n"); |
| 7825 | if (qclk->ce_core_src_clk != NULL) |
| 7826 | clk_put(qclk->ce_core_src_clk); |
| 7827 | clk_put(qclk->ce_core_clk); |
| 7828 | clk_put(qclk->ce_clk); |
| 7829 | return -EIO; |
| 7830 | } |
| 7831 | |
| 7832 | return rc; |
| 7833 | } |
| 7834 | |
| 7835 | static void __qseecom_deinit_clk(enum qseecom_ce_hw_instance ce) |
| 7836 | { |
| 7837 | struct qseecom_clk *qclk; |
| 7838 | |
| 7839 | if (ce == CLK_QSEE) |
| 7840 | qclk = &qseecom.qsee; |
| 7841 | else |
| 7842 | qclk = &qseecom.ce_drv; |
| 7843 | |
| 7844 | if (qclk->ce_clk != NULL) { |
| 7845 | clk_put(qclk->ce_clk); |
| 7846 | qclk->ce_clk = NULL; |
| 7847 | } |
| 7848 | if (qclk->ce_core_clk != NULL) { |
| 7849 | clk_put(qclk->ce_core_clk); |
| 7850 | qclk->ce_core_clk = NULL; |
| 7851 | } |
| 7852 | if (qclk->ce_bus_clk != NULL) { |
| 7853 | clk_put(qclk->ce_bus_clk); |
| 7854 | qclk->ce_bus_clk = NULL; |
| 7855 | } |
| 7856 | if (qclk->ce_core_src_clk != NULL) { |
| 7857 | clk_put(qclk->ce_core_src_clk); |
| 7858 | qclk->ce_core_src_clk = NULL; |
| 7859 | } |
| 7860 | qclk->instance = CLK_INVALID; |
| 7861 | } |
| 7862 | |
| 7863 | static int qseecom_retrieve_ce_data(struct platform_device *pdev) |
| 7864 | { |
| 7865 | int rc = 0; |
| 7866 | uint32_t hlos_num_ce_hw_instances; |
| 7867 | uint32_t disk_encrypt_pipe; |
| 7868 | uint32_t file_encrypt_pipe; |
Zhen Kong | ffec45c | 2017-10-18 14:05:53 -0700 | [diff] [blame] | 7869 | uint32_t hlos_ce_hw_instance[MAX_CE_PIPE_PAIR_PER_UNIT] = {0}; |
AnilKumar Chimata | 20c6b2f | 2017-04-07 12:18:46 -0700 | [diff] [blame] | 7870 | int i; |
| 7871 | const int *tbl; |
| 7872 | int size; |
| 7873 | int entry; |
| 7874 | struct qseecom_crypto_info *pfde_tbl = NULL; |
| 7875 | struct qseecom_crypto_info *p; |
| 7876 | int tbl_size; |
| 7877 | int j; |
| 7878 | bool old_db = true; |
| 7879 | struct qseecom_ce_info_use *pce_info_use; |
| 7880 | uint32_t *unit_tbl = NULL; |
| 7881 | int total_units = 0; |
| 7882 | struct qseecom_ce_pipe_entry *pce_entry; |
| 7883 | |
| 7884 | qseecom.ce_info.fde = qseecom.ce_info.pfe = NULL; |
| 7885 | qseecom.ce_info.num_fde = qseecom.ce_info.num_pfe = 0; |
| 7886 | |
| 7887 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 7888 | "qcom,qsee-ce-hw-instance", |
| 7889 | &qseecom.ce_info.qsee_ce_hw_instance)) { |
| 7890 | pr_err("Fail to get qsee ce hw instance information.\n"); |
| 7891 | rc = -EINVAL; |
| 7892 | goto out; |
| 7893 | } else { |
| 7894 | pr_debug("qsee-ce-hw-instance=0x%x\n", |
| 7895 | qseecom.ce_info.qsee_ce_hw_instance); |
| 7896 | } |
| 7897 | |
| 7898 | qseecom.support_fde = of_property_read_bool((&pdev->dev)->of_node, |
| 7899 | "qcom,support-fde"); |
| 7900 | qseecom.support_pfe = of_property_read_bool((&pdev->dev)->of_node, |
| 7901 | "qcom,support-pfe"); |
| 7902 | |
| 7903 | if (!qseecom.support_pfe && !qseecom.support_fde) { |
| 7904 | pr_warn("Device does not support PFE/FDE"); |
| 7905 | goto out; |
| 7906 | } |
| 7907 | |
| 7908 | if (qseecom.support_fde) |
| 7909 | tbl = of_get_property((&pdev->dev)->of_node, |
| 7910 | "qcom,full-disk-encrypt-info", &size); |
| 7911 | else |
| 7912 | tbl = NULL; |
| 7913 | if (tbl) { |
| 7914 | old_db = false; |
| 7915 | if (size % sizeof(struct qseecom_crypto_info)) { |
| 7916 | pr_err("full-disk-encrypt-info tbl size(%d)\n", |
| 7917 | size); |
| 7918 | rc = -EINVAL; |
| 7919 | goto out; |
| 7920 | } |
| 7921 | tbl_size = size / sizeof |
| 7922 | (struct qseecom_crypto_info); |
| 7923 | |
| 7924 | pfde_tbl = kzalloc(size, GFP_KERNEL); |
| 7925 | unit_tbl = kcalloc(tbl_size, sizeof(int), GFP_KERNEL); |
| 7926 | total_units = 0; |
| 7927 | |
| 7928 | if (!pfde_tbl || !unit_tbl) { |
| 7929 | pr_err("failed to alloc memory\n"); |
| 7930 | rc = -ENOMEM; |
| 7931 | goto out; |
| 7932 | } |
| 7933 | if (of_property_read_u32_array((&pdev->dev)->of_node, |
| 7934 | "qcom,full-disk-encrypt-info", |
| 7935 | (u32 *)pfde_tbl, size/sizeof(u32))) { |
| 7936 | pr_err("failed to read full-disk-encrypt-info tbl\n"); |
| 7937 | rc = -EINVAL; |
| 7938 | goto out; |
| 7939 | } |
| 7940 | |
| 7941 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 7942 | for (j = 0; j < total_units; j++) { |
| 7943 | if (p->unit_num == *(unit_tbl + j)) |
| 7944 | break; |
| 7945 | } |
| 7946 | if (j == total_units) { |
| 7947 | *(unit_tbl + total_units) = p->unit_num; |
| 7948 | total_units++; |
| 7949 | } |
| 7950 | } |
| 7951 | |
| 7952 | qseecom.ce_info.num_fde = total_units; |
| 7953 | pce_info_use = qseecom.ce_info.fde = kcalloc( |
| 7954 | total_units, sizeof(struct qseecom_ce_info_use), |
| 7955 | GFP_KERNEL); |
| 7956 | if (!pce_info_use) { |
| 7957 | pr_err("failed to alloc memory\n"); |
| 7958 | rc = -ENOMEM; |
| 7959 | goto out; |
| 7960 | } |
| 7961 | |
| 7962 | for (j = 0; j < total_units; j++, pce_info_use++) { |
| 7963 | pce_info_use->unit_num = *(unit_tbl + j); |
| 7964 | pce_info_use->alloc = false; |
| 7965 | pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_FDE; |
| 7966 | pce_info_use->num_ce_pipe_entries = 0; |
| 7967 | pce_info_use->ce_pipe_entry = NULL; |
| 7968 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 7969 | if (p->unit_num == pce_info_use->unit_num) |
| 7970 | pce_info_use->num_ce_pipe_entries++; |
| 7971 | } |
| 7972 | |
| 7973 | entry = pce_info_use->num_ce_pipe_entries; |
| 7974 | pce_entry = pce_info_use->ce_pipe_entry = |
| 7975 | kcalloc(entry, |
| 7976 | sizeof(struct qseecom_ce_pipe_entry), |
| 7977 | GFP_KERNEL); |
| 7978 | if (pce_entry == NULL) { |
| 7979 | pr_err("failed to alloc memory\n"); |
| 7980 | rc = -ENOMEM; |
| 7981 | goto out; |
| 7982 | } |
| 7983 | |
| 7984 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 7985 | if (p->unit_num == pce_info_use->unit_num) { |
| 7986 | pce_entry->ce_num = p->ce; |
| 7987 | pce_entry->ce_pipe_pair = |
| 7988 | p->pipe_pair; |
| 7989 | pce_entry->valid = true; |
| 7990 | pce_entry++; |
| 7991 | } |
| 7992 | } |
| 7993 | } |
| 7994 | kfree(unit_tbl); |
| 7995 | unit_tbl = NULL; |
| 7996 | kfree(pfde_tbl); |
| 7997 | pfde_tbl = NULL; |
| 7998 | } |
| 7999 | |
| 8000 | if (qseecom.support_pfe) |
| 8001 | tbl = of_get_property((&pdev->dev)->of_node, |
| 8002 | "qcom,per-file-encrypt-info", &size); |
| 8003 | else |
| 8004 | tbl = NULL; |
| 8005 | if (tbl) { |
| 8006 | old_db = false; |
| 8007 | if (size % sizeof(struct qseecom_crypto_info)) { |
| 8008 | pr_err("per-file-encrypt-info tbl size(%d)\n", |
| 8009 | size); |
| 8010 | rc = -EINVAL; |
| 8011 | goto out; |
| 8012 | } |
| 8013 | tbl_size = size / sizeof |
| 8014 | (struct qseecom_crypto_info); |
| 8015 | |
| 8016 | pfde_tbl = kzalloc(size, GFP_KERNEL); |
| 8017 | unit_tbl = kcalloc(tbl_size, sizeof(int), GFP_KERNEL); |
| 8018 | total_units = 0; |
| 8019 | if (!pfde_tbl || !unit_tbl) { |
| 8020 | pr_err("failed to alloc memory\n"); |
| 8021 | rc = -ENOMEM; |
| 8022 | goto out; |
| 8023 | } |
| 8024 | if (of_property_read_u32_array((&pdev->dev)->of_node, |
| 8025 | "qcom,per-file-encrypt-info", |
| 8026 | (u32 *)pfde_tbl, size/sizeof(u32))) { |
| 8027 | pr_err("failed to read per-file-encrypt-info tbl\n"); |
| 8028 | rc = -EINVAL; |
| 8029 | goto out; |
| 8030 | } |
| 8031 | |
| 8032 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 8033 | for (j = 0; j < total_units; j++) { |
| 8034 | if (p->unit_num == *(unit_tbl + j)) |
| 8035 | break; |
| 8036 | } |
| 8037 | if (j == total_units) { |
| 8038 | *(unit_tbl + total_units) = p->unit_num; |
| 8039 | total_units++; |
| 8040 | } |
| 8041 | } |
| 8042 | |
| 8043 | qseecom.ce_info.num_pfe = total_units; |
| 8044 | pce_info_use = qseecom.ce_info.pfe = kcalloc( |
| 8045 | total_units, sizeof(struct qseecom_ce_info_use), |
| 8046 | GFP_KERNEL); |
| 8047 | if (!pce_info_use) { |
| 8048 | pr_err("failed to alloc memory\n"); |
| 8049 | rc = -ENOMEM; |
| 8050 | goto out; |
| 8051 | } |
| 8052 | |
| 8053 | for (j = 0; j < total_units; j++, pce_info_use++) { |
| 8054 | pce_info_use->unit_num = *(unit_tbl + j); |
| 8055 | pce_info_use->alloc = false; |
| 8056 | pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_PFE; |
| 8057 | pce_info_use->num_ce_pipe_entries = 0; |
| 8058 | pce_info_use->ce_pipe_entry = NULL; |
| 8059 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 8060 | if (p->unit_num == pce_info_use->unit_num) |
| 8061 | pce_info_use->num_ce_pipe_entries++; |
| 8062 | } |
| 8063 | |
| 8064 | entry = pce_info_use->num_ce_pipe_entries; |
| 8065 | pce_entry = pce_info_use->ce_pipe_entry = |
| 8066 | kcalloc(entry, |
| 8067 | sizeof(struct qseecom_ce_pipe_entry), |
| 8068 | GFP_KERNEL); |
| 8069 | if (pce_entry == NULL) { |
| 8070 | pr_err("failed to alloc memory\n"); |
| 8071 | rc = -ENOMEM; |
| 8072 | goto out; |
| 8073 | } |
| 8074 | |
| 8075 | for (i = 0, p = pfde_tbl; i < tbl_size; i++, p++) { |
| 8076 | if (p->unit_num == pce_info_use->unit_num) { |
| 8077 | pce_entry->ce_num = p->ce; |
| 8078 | pce_entry->ce_pipe_pair = |
| 8079 | p->pipe_pair; |
| 8080 | pce_entry->valid = true; |
| 8081 | pce_entry++; |
| 8082 | } |
| 8083 | } |
| 8084 | } |
| 8085 | kfree(unit_tbl); |
| 8086 | unit_tbl = NULL; |
| 8087 | kfree(pfde_tbl); |
| 8088 | pfde_tbl = NULL; |
| 8089 | } |
| 8090 | |
| 8091 | if (!old_db) |
| 8092 | goto out1; |
| 8093 | |
| 8094 | if (of_property_read_bool((&pdev->dev)->of_node, |
| 8095 | "qcom,support-multiple-ce-hw-instance")) { |
| 8096 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 8097 | "qcom,hlos-num-ce-hw-instances", |
| 8098 | &hlos_num_ce_hw_instances)) { |
| 8099 | pr_err("Fail: get hlos number of ce hw instance\n"); |
| 8100 | rc = -EINVAL; |
| 8101 | goto out; |
| 8102 | } |
| 8103 | } else { |
| 8104 | hlos_num_ce_hw_instances = 1; |
| 8105 | } |
| 8106 | |
| 8107 | if (hlos_num_ce_hw_instances > MAX_CE_PIPE_PAIR_PER_UNIT) { |
| 8108 | pr_err("Fail: hlos number of ce hw instance exceeds %d\n", |
| 8109 | MAX_CE_PIPE_PAIR_PER_UNIT); |
| 8110 | rc = -EINVAL; |
| 8111 | goto out; |
| 8112 | } |
| 8113 | |
| 8114 | if (of_property_read_u32_array((&pdev->dev)->of_node, |
| 8115 | "qcom,hlos-ce-hw-instance", hlos_ce_hw_instance, |
| 8116 | hlos_num_ce_hw_instances)) { |
| 8117 | pr_err("Fail: get hlos ce hw instance info\n"); |
| 8118 | rc = -EINVAL; |
| 8119 | goto out; |
| 8120 | } |
| 8121 | |
| 8122 | if (qseecom.support_fde) { |
| 8123 | pce_info_use = qseecom.ce_info.fde = |
| 8124 | kzalloc(sizeof(struct qseecom_ce_info_use), GFP_KERNEL); |
| 8125 | if (!pce_info_use) { |
| 8126 | pr_err("failed to alloc memory\n"); |
| 8127 | rc = -ENOMEM; |
| 8128 | goto out; |
| 8129 | } |
| 8130 | /* by default for old db */ |
| 8131 | qseecom.ce_info.num_fde = DEFAULT_NUM_CE_INFO_UNIT; |
| 8132 | pce_info_use->unit_num = DEFAULT_CE_INFO_UNIT; |
| 8133 | pce_info_use->alloc = false; |
| 8134 | pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_FDE; |
| 8135 | pce_info_use->ce_pipe_entry = NULL; |
| 8136 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 8137 | "qcom,disk-encrypt-pipe-pair", |
| 8138 | &disk_encrypt_pipe)) { |
| 8139 | pr_err("Fail to get FDE pipe information.\n"); |
| 8140 | rc = -EINVAL; |
| 8141 | goto out; |
| 8142 | } else { |
| 8143 | pr_debug("disk-encrypt-pipe-pair=0x%x", |
| 8144 | disk_encrypt_pipe); |
| 8145 | } |
| 8146 | entry = pce_info_use->num_ce_pipe_entries = |
| 8147 | hlos_num_ce_hw_instances; |
| 8148 | pce_entry = pce_info_use->ce_pipe_entry = |
| 8149 | kcalloc(entry, |
| 8150 | sizeof(struct qseecom_ce_pipe_entry), |
| 8151 | GFP_KERNEL); |
| 8152 | if (pce_entry == NULL) { |
| 8153 | pr_err("failed to alloc memory\n"); |
| 8154 | rc = -ENOMEM; |
| 8155 | goto out; |
| 8156 | } |
| 8157 | for (i = 0; i < entry; i++) { |
| 8158 | pce_entry->ce_num = hlos_ce_hw_instance[i]; |
| 8159 | pce_entry->ce_pipe_pair = disk_encrypt_pipe; |
| 8160 | pce_entry->valid = 1; |
| 8161 | pce_entry++; |
| 8162 | } |
| 8163 | } else { |
| 8164 | pr_warn("Device does not support FDE"); |
| 8165 | disk_encrypt_pipe = 0xff; |
| 8166 | } |
| 8167 | if (qseecom.support_pfe) { |
| 8168 | pce_info_use = qseecom.ce_info.pfe = |
| 8169 | kzalloc(sizeof(struct qseecom_ce_info_use), GFP_KERNEL); |
| 8170 | if (!pce_info_use) { |
| 8171 | pr_err("failed to alloc memory\n"); |
| 8172 | rc = -ENOMEM; |
| 8173 | goto out; |
| 8174 | } |
| 8175 | /* by default for old db */ |
| 8176 | qseecom.ce_info.num_pfe = DEFAULT_NUM_CE_INFO_UNIT; |
| 8177 | pce_info_use->unit_num = DEFAULT_CE_INFO_UNIT; |
| 8178 | pce_info_use->alloc = false; |
| 8179 | pce_info_use->type = CE_PIPE_PAIR_USE_TYPE_PFE; |
| 8180 | pce_info_use->ce_pipe_entry = NULL; |
| 8181 | |
| 8182 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 8183 | "qcom,file-encrypt-pipe-pair", |
| 8184 | &file_encrypt_pipe)) { |
| 8185 | pr_err("Fail to get PFE pipe information.\n"); |
| 8186 | rc = -EINVAL; |
| 8187 | goto out; |
| 8188 | } else { |
| 8189 | pr_debug("file-encrypt-pipe-pair=0x%x", |
| 8190 | file_encrypt_pipe); |
| 8191 | } |
| 8192 | entry = pce_info_use->num_ce_pipe_entries = |
| 8193 | hlos_num_ce_hw_instances; |
| 8194 | pce_entry = pce_info_use->ce_pipe_entry = |
| 8195 | kcalloc(entry, |
| 8196 | sizeof(struct qseecom_ce_pipe_entry), |
| 8197 | GFP_KERNEL); |
| 8198 | if (pce_entry == NULL) { |
| 8199 | pr_err("failed to alloc memory\n"); |
| 8200 | rc = -ENOMEM; |
| 8201 | goto out; |
| 8202 | } |
| 8203 | for (i = 0; i < entry; i++) { |
| 8204 | pce_entry->ce_num = hlos_ce_hw_instance[i]; |
| 8205 | pce_entry->ce_pipe_pair = file_encrypt_pipe; |
| 8206 | pce_entry->valid = 1; |
| 8207 | pce_entry++; |
| 8208 | } |
| 8209 | } else { |
| 8210 | pr_warn("Device does not support PFE"); |
| 8211 | file_encrypt_pipe = 0xff; |
| 8212 | } |
| 8213 | |
| 8214 | out1: |
| 8215 | qseecom.qsee.instance = qseecom.ce_info.qsee_ce_hw_instance; |
| 8216 | qseecom.ce_drv.instance = hlos_ce_hw_instance[0]; |
| 8217 | out: |
| 8218 | if (rc) { |
| 8219 | if (qseecom.ce_info.fde) { |
| 8220 | pce_info_use = qseecom.ce_info.fde; |
| 8221 | for (i = 0; i < qseecom.ce_info.num_fde; i++) { |
| 8222 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8223 | kfree(pce_entry); |
| 8224 | pce_info_use++; |
| 8225 | } |
| 8226 | } |
| 8227 | kfree(qseecom.ce_info.fde); |
| 8228 | qseecom.ce_info.fde = NULL; |
| 8229 | if (qseecom.ce_info.pfe) { |
| 8230 | pce_info_use = qseecom.ce_info.pfe; |
| 8231 | for (i = 0; i < qseecom.ce_info.num_pfe; i++) { |
| 8232 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8233 | kfree(pce_entry); |
| 8234 | pce_info_use++; |
| 8235 | } |
| 8236 | } |
| 8237 | kfree(qseecom.ce_info.pfe); |
| 8238 | qseecom.ce_info.pfe = NULL; |
| 8239 | } |
| 8240 | kfree(unit_tbl); |
| 8241 | kfree(pfde_tbl); |
| 8242 | return rc; |
| 8243 | } |
| 8244 | |
| 8245 | static int qseecom_get_ce_info(struct qseecom_dev_handle *data, |
| 8246 | void __user *argp) |
| 8247 | { |
| 8248 | struct qseecom_ce_info_req req; |
| 8249 | struct qseecom_ce_info_req *pinfo = &req; |
| 8250 | int ret = 0; |
| 8251 | int i; |
| 8252 | unsigned int entries; |
| 8253 | struct qseecom_ce_info_use *pce_info_use, *p; |
| 8254 | int total = 0; |
| 8255 | bool found = false; |
| 8256 | struct qseecom_ce_pipe_entry *pce_entry; |
| 8257 | |
| 8258 | ret = copy_from_user(pinfo, argp, |
| 8259 | sizeof(struct qseecom_ce_info_req)); |
| 8260 | if (ret) { |
| 8261 | pr_err("copy_from_user failed\n"); |
| 8262 | return ret; |
| 8263 | } |
| 8264 | |
| 8265 | switch (pinfo->usage) { |
| 8266 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 8267 | case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION: |
| 8268 | case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION: |
| 8269 | if (qseecom.support_fde) { |
| 8270 | p = qseecom.ce_info.fde; |
| 8271 | total = qseecom.ce_info.num_fde; |
| 8272 | } else { |
| 8273 | pr_err("system does not support fde\n"); |
| 8274 | return -EINVAL; |
| 8275 | } |
| 8276 | break; |
| 8277 | case QSEOS_KM_USAGE_FILE_ENCRYPTION: |
| 8278 | if (qseecom.support_pfe) { |
| 8279 | p = qseecom.ce_info.pfe; |
| 8280 | total = qseecom.ce_info.num_pfe; |
| 8281 | } else { |
| 8282 | pr_err("system does not support pfe\n"); |
| 8283 | return -EINVAL; |
| 8284 | } |
| 8285 | break; |
| 8286 | default: |
| 8287 | pr_err("unsupported usage %d\n", pinfo->usage); |
| 8288 | return -EINVAL; |
| 8289 | } |
| 8290 | |
| 8291 | pce_info_use = NULL; |
| 8292 | for (i = 0; i < total; i++) { |
| 8293 | if (!p->alloc) |
| 8294 | pce_info_use = p; |
| 8295 | else if (!memcmp(p->handle, pinfo->handle, |
| 8296 | MAX_CE_INFO_HANDLE_SIZE)) { |
| 8297 | pce_info_use = p; |
| 8298 | found = true; |
| 8299 | break; |
| 8300 | } |
| 8301 | p++; |
| 8302 | } |
| 8303 | |
| 8304 | if (pce_info_use == NULL) |
| 8305 | return -EBUSY; |
| 8306 | |
| 8307 | pinfo->unit_num = pce_info_use->unit_num; |
| 8308 | if (!pce_info_use->alloc) { |
| 8309 | pce_info_use->alloc = true; |
| 8310 | memcpy(pce_info_use->handle, |
| 8311 | pinfo->handle, MAX_CE_INFO_HANDLE_SIZE); |
| 8312 | } |
| 8313 | if (pce_info_use->num_ce_pipe_entries > |
| 8314 | MAX_CE_PIPE_PAIR_PER_UNIT) |
| 8315 | entries = MAX_CE_PIPE_PAIR_PER_UNIT; |
| 8316 | else |
| 8317 | entries = pce_info_use->num_ce_pipe_entries; |
| 8318 | pinfo->num_ce_pipe_entries = entries; |
| 8319 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8320 | for (i = 0; i < entries; i++, pce_entry++) |
| 8321 | pinfo->ce_pipe_entry[i] = *pce_entry; |
| 8322 | for (; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++) |
| 8323 | pinfo->ce_pipe_entry[i].valid = 0; |
| 8324 | |
| 8325 | if (copy_to_user(argp, pinfo, sizeof(struct qseecom_ce_info_req))) { |
| 8326 | pr_err("copy_to_user failed\n"); |
| 8327 | ret = -EFAULT; |
| 8328 | } |
| 8329 | return ret; |
| 8330 | } |
| 8331 | |
| 8332 | static int qseecom_free_ce_info(struct qseecom_dev_handle *data, |
| 8333 | void __user *argp) |
| 8334 | { |
| 8335 | struct qseecom_ce_info_req req; |
| 8336 | struct qseecom_ce_info_req *pinfo = &req; |
| 8337 | int ret = 0; |
| 8338 | struct qseecom_ce_info_use *p; |
| 8339 | int total = 0; |
| 8340 | int i; |
| 8341 | bool found = false; |
| 8342 | |
| 8343 | ret = copy_from_user(pinfo, argp, |
| 8344 | sizeof(struct qseecom_ce_info_req)); |
| 8345 | if (ret) |
| 8346 | return ret; |
| 8347 | |
| 8348 | switch (pinfo->usage) { |
| 8349 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 8350 | case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION: |
| 8351 | case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION: |
| 8352 | if (qseecom.support_fde) { |
| 8353 | p = qseecom.ce_info.fde; |
| 8354 | total = qseecom.ce_info.num_fde; |
| 8355 | } else { |
| 8356 | pr_err("system does not support fde\n"); |
| 8357 | return -EINVAL; |
| 8358 | } |
| 8359 | break; |
| 8360 | case QSEOS_KM_USAGE_FILE_ENCRYPTION: |
| 8361 | if (qseecom.support_pfe) { |
| 8362 | p = qseecom.ce_info.pfe; |
| 8363 | total = qseecom.ce_info.num_pfe; |
| 8364 | } else { |
| 8365 | pr_err("system does not support pfe\n"); |
| 8366 | return -EINVAL; |
| 8367 | } |
| 8368 | break; |
| 8369 | default: |
| 8370 | pr_err("unsupported usage %d\n", pinfo->usage); |
| 8371 | return -EINVAL; |
| 8372 | } |
| 8373 | |
| 8374 | for (i = 0; i < total; i++) { |
| 8375 | if (p->alloc && |
| 8376 | !memcmp(p->handle, pinfo->handle, |
| 8377 | MAX_CE_INFO_HANDLE_SIZE)) { |
| 8378 | memset(p->handle, 0, MAX_CE_INFO_HANDLE_SIZE); |
| 8379 | p->alloc = false; |
| 8380 | found = true; |
| 8381 | break; |
| 8382 | } |
| 8383 | p++; |
| 8384 | } |
| 8385 | return ret; |
| 8386 | } |
| 8387 | |
| 8388 | static int qseecom_query_ce_info(struct qseecom_dev_handle *data, |
| 8389 | void __user *argp) |
| 8390 | { |
| 8391 | struct qseecom_ce_info_req req; |
| 8392 | struct qseecom_ce_info_req *pinfo = &req; |
| 8393 | int ret = 0; |
| 8394 | int i; |
| 8395 | unsigned int entries; |
| 8396 | struct qseecom_ce_info_use *pce_info_use, *p; |
| 8397 | int total = 0; |
| 8398 | bool found = false; |
| 8399 | struct qseecom_ce_pipe_entry *pce_entry; |
| 8400 | |
| 8401 | ret = copy_from_user(pinfo, argp, |
| 8402 | sizeof(struct qseecom_ce_info_req)); |
| 8403 | if (ret) |
| 8404 | return ret; |
| 8405 | |
| 8406 | switch (pinfo->usage) { |
| 8407 | case QSEOS_KM_USAGE_DISK_ENCRYPTION: |
| 8408 | case QSEOS_KM_USAGE_UFS_ICE_DISK_ENCRYPTION: |
| 8409 | case QSEOS_KM_USAGE_SDCC_ICE_DISK_ENCRYPTION: |
| 8410 | if (qseecom.support_fde) { |
| 8411 | p = qseecom.ce_info.fde; |
| 8412 | total = qseecom.ce_info.num_fde; |
| 8413 | } else { |
| 8414 | pr_err("system does not support fde\n"); |
| 8415 | return -EINVAL; |
| 8416 | } |
| 8417 | break; |
| 8418 | case QSEOS_KM_USAGE_FILE_ENCRYPTION: |
| 8419 | if (qseecom.support_pfe) { |
| 8420 | p = qseecom.ce_info.pfe; |
| 8421 | total = qseecom.ce_info.num_pfe; |
| 8422 | } else { |
| 8423 | pr_err("system does not support pfe\n"); |
| 8424 | return -EINVAL; |
| 8425 | } |
| 8426 | break; |
| 8427 | default: |
| 8428 | pr_err("unsupported usage %d\n", pinfo->usage); |
| 8429 | return -EINVAL; |
| 8430 | } |
| 8431 | |
| 8432 | pce_info_use = NULL; |
| 8433 | pinfo->unit_num = INVALID_CE_INFO_UNIT_NUM; |
| 8434 | pinfo->num_ce_pipe_entries = 0; |
| 8435 | for (i = 0; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++) |
| 8436 | pinfo->ce_pipe_entry[i].valid = 0; |
| 8437 | |
| 8438 | for (i = 0; i < total; i++) { |
| 8439 | |
| 8440 | if (p->alloc && !memcmp(p->handle, |
| 8441 | pinfo->handle, MAX_CE_INFO_HANDLE_SIZE)) { |
| 8442 | pce_info_use = p; |
| 8443 | found = true; |
| 8444 | break; |
| 8445 | } |
| 8446 | p++; |
| 8447 | } |
| 8448 | if (!pce_info_use) |
| 8449 | goto out; |
| 8450 | pinfo->unit_num = pce_info_use->unit_num; |
| 8451 | if (pce_info_use->num_ce_pipe_entries > |
| 8452 | MAX_CE_PIPE_PAIR_PER_UNIT) |
| 8453 | entries = MAX_CE_PIPE_PAIR_PER_UNIT; |
| 8454 | else |
| 8455 | entries = pce_info_use->num_ce_pipe_entries; |
| 8456 | pinfo->num_ce_pipe_entries = entries; |
| 8457 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8458 | for (i = 0; i < entries; i++, pce_entry++) |
| 8459 | pinfo->ce_pipe_entry[i] = *pce_entry; |
| 8460 | for (; i < MAX_CE_PIPE_PAIR_PER_UNIT; i++) |
| 8461 | pinfo->ce_pipe_entry[i].valid = 0; |
| 8462 | out: |
| 8463 | if (copy_to_user(argp, pinfo, sizeof(struct qseecom_ce_info_req))) { |
| 8464 | pr_err("copy_to_user failed\n"); |
| 8465 | ret = -EFAULT; |
| 8466 | } |
| 8467 | return ret; |
| 8468 | } |
| 8469 | |
| 8470 | /* |
| 8471 | * Check whitelist feature, and if TZ feature version is < 1.0.0, |
| 8472 | * then whitelist feature is not supported. |
| 8473 | */ |
| 8474 | static int qseecom_check_whitelist_feature(void) |
| 8475 | { |
| 8476 | int version = scm_get_feat_version(FEATURE_ID_WHITELIST); |
| 8477 | |
| 8478 | return version >= MAKE_WHITELIST_VERSION(1, 0, 0); |
| 8479 | } |
| 8480 | |
| 8481 | static int qseecom_probe(struct platform_device *pdev) |
| 8482 | { |
| 8483 | int rc; |
| 8484 | int i; |
| 8485 | uint32_t feature = 10; |
| 8486 | struct device *class_dev; |
| 8487 | struct msm_bus_scale_pdata *qseecom_platform_support = NULL; |
| 8488 | struct qseecom_command_scm_resp resp; |
| 8489 | struct qseecom_ce_info_use *pce_info_use = NULL; |
| 8490 | |
| 8491 | qseecom.qsee_bw_count = 0; |
| 8492 | qseecom.qsee_perf_client = 0; |
| 8493 | qseecom.qsee_sfpb_bw_count = 0; |
| 8494 | |
| 8495 | qseecom.qsee.ce_core_clk = NULL; |
| 8496 | qseecom.qsee.ce_clk = NULL; |
| 8497 | qseecom.qsee.ce_core_src_clk = NULL; |
| 8498 | qseecom.qsee.ce_bus_clk = NULL; |
| 8499 | |
| 8500 | qseecom.cumulative_mode = 0; |
| 8501 | qseecom.current_mode = INACTIVE; |
| 8502 | qseecom.support_bus_scaling = false; |
| 8503 | qseecom.support_fde = false; |
| 8504 | qseecom.support_pfe = false; |
| 8505 | |
| 8506 | qseecom.ce_drv.ce_core_clk = NULL; |
| 8507 | qseecom.ce_drv.ce_clk = NULL; |
| 8508 | qseecom.ce_drv.ce_core_src_clk = NULL; |
| 8509 | qseecom.ce_drv.ce_bus_clk = NULL; |
| 8510 | atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_NOT_READY); |
| 8511 | |
| 8512 | qseecom.app_block_ref_cnt = 0; |
| 8513 | init_waitqueue_head(&qseecom.app_block_wq); |
| 8514 | qseecom.whitelist_support = true; |
| 8515 | |
| 8516 | rc = alloc_chrdev_region(&qseecom_device_no, 0, 1, QSEECOM_DEV); |
| 8517 | if (rc < 0) { |
| 8518 | pr_err("alloc_chrdev_region failed %d\n", rc); |
| 8519 | return rc; |
| 8520 | } |
| 8521 | |
| 8522 | driver_class = class_create(THIS_MODULE, QSEECOM_DEV); |
| 8523 | if (IS_ERR(driver_class)) { |
| 8524 | rc = -ENOMEM; |
| 8525 | pr_err("class_create failed %d\n", rc); |
| 8526 | goto exit_unreg_chrdev_region; |
| 8527 | } |
| 8528 | |
| 8529 | class_dev = device_create(driver_class, NULL, qseecom_device_no, NULL, |
| 8530 | QSEECOM_DEV); |
| 8531 | if (IS_ERR(class_dev)) { |
| 8532 | pr_err("class_device_create failed %d\n", rc); |
| 8533 | rc = -ENOMEM; |
| 8534 | goto exit_destroy_class; |
| 8535 | } |
| 8536 | |
| 8537 | cdev_init(&qseecom.cdev, &qseecom_fops); |
| 8538 | qseecom.cdev.owner = THIS_MODULE; |
| 8539 | |
| 8540 | rc = cdev_add(&qseecom.cdev, MKDEV(MAJOR(qseecom_device_no), 0), 1); |
| 8541 | if (rc < 0) { |
| 8542 | pr_err("cdev_add failed %d\n", rc); |
| 8543 | goto exit_destroy_device; |
| 8544 | } |
| 8545 | |
| 8546 | INIT_LIST_HEAD(&qseecom.registered_listener_list_head); |
| 8547 | spin_lock_init(&qseecom.registered_listener_list_lock); |
| 8548 | INIT_LIST_HEAD(&qseecom.registered_app_list_head); |
| 8549 | spin_lock_init(&qseecom.registered_app_list_lock); |
| 8550 | INIT_LIST_HEAD(&qseecom.registered_kclient_list_head); |
| 8551 | spin_lock_init(&qseecom.registered_kclient_list_lock); |
| 8552 | init_waitqueue_head(&qseecom.send_resp_wq); |
| 8553 | qseecom.send_resp_flag = 0; |
| 8554 | |
| 8555 | qseecom.qsee_version = QSEEE_VERSION_00; |
| 8556 | rc = qseecom_scm_call(6, 3, &feature, sizeof(feature), |
| 8557 | &resp, sizeof(resp)); |
| 8558 | pr_info("qseecom.qsee_version = 0x%x\n", resp.result); |
| 8559 | if (rc) { |
| 8560 | pr_err("Failed to get QSEE version info %d\n", rc); |
| 8561 | goto exit_del_cdev; |
| 8562 | } |
| 8563 | qseecom.qsee_version = resp.result; |
| 8564 | qseecom.qseos_version = QSEOS_VERSION_14; |
| 8565 | qseecom.commonlib_loaded = false; |
| 8566 | qseecom.commonlib64_loaded = false; |
| 8567 | qseecom.pdev = class_dev; |
| 8568 | /* Create ION msm client */ |
| 8569 | qseecom.ion_clnt = msm_ion_client_create("qseecom-kernel"); |
| 8570 | if (IS_ERR_OR_NULL(qseecom.ion_clnt)) { |
| 8571 | pr_err("Ion client cannot be created\n"); |
| 8572 | rc = -ENOMEM; |
| 8573 | goto exit_del_cdev; |
| 8574 | } |
| 8575 | |
| 8576 | /* register client for bus scaling */ |
| 8577 | if (pdev->dev.of_node) { |
| 8578 | qseecom.pdev->of_node = pdev->dev.of_node; |
| 8579 | qseecom.support_bus_scaling = |
| 8580 | of_property_read_bool((&pdev->dev)->of_node, |
| 8581 | "qcom,support-bus-scaling"); |
| 8582 | rc = qseecom_retrieve_ce_data(pdev); |
| 8583 | if (rc) |
| 8584 | goto exit_destroy_ion_client; |
| 8585 | qseecom.appsbl_qseecom_support = |
| 8586 | of_property_read_bool((&pdev->dev)->of_node, |
| 8587 | "qcom,appsbl-qseecom-support"); |
| 8588 | pr_debug("qseecom.appsbl_qseecom_support = 0x%x", |
| 8589 | qseecom.appsbl_qseecom_support); |
| 8590 | |
| 8591 | qseecom.commonlib64_loaded = |
| 8592 | of_property_read_bool((&pdev->dev)->of_node, |
| 8593 | "qcom,commonlib64-loaded-by-uefi"); |
| 8594 | pr_debug("qseecom.commonlib64-loaded-by-uefi = 0x%x", |
| 8595 | qseecom.commonlib64_loaded); |
| 8596 | qseecom.fde_key_size = |
| 8597 | of_property_read_bool((&pdev->dev)->of_node, |
| 8598 | "qcom,fde-key-size"); |
| 8599 | qseecom.no_clock_support = |
| 8600 | of_property_read_bool((&pdev->dev)->of_node, |
| 8601 | "qcom,no-clock-support"); |
| 8602 | if (!qseecom.no_clock_support) { |
| 8603 | pr_info("qseecom clocks handled by other subsystem\n"); |
| 8604 | } else { |
| 8605 | pr_info("no-clock-support=0x%x", |
| 8606 | qseecom.no_clock_support); |
| 8607 | } |
| 8608 | |
| 8609 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 8610 | "qcom,qsee-reentrancy-support", |
| 8611 | &qseecom.qsee_reentrancy_support)) { |
| 8612 | pr_warn("qsee reentrancy support phase is not defined, setting to default 0\n"); |
| 8613 | qseecom.qsee_reentrancy_support = 0; |
| 8614 | } else { |
| 8615 | pr_warn("qseecom.qsee_reentrancy_support = %d\n", |
| 8616 | qseecom.qsee_reentrancy_support); |
| 8617 | } |
| 8618 | |
| 8619 | /* |
| 8620 | * The qseecom bus scaling flag can not be enabled when |
| 8621 | * crypto clock is not handled by HLOS. |
| 8622 | */ |
| 8623 | if (qseecom.no_clock_support && qseecom.support_bus_scaling) { |
| 8624 | pr_err("support_bus_scaling flag can not be enabled.\n"); |
| 8625 | rc = -EINVAL; |
| 8626 | goto exit_destroy_ion_client; |
| 8627 | } |
| 8628 | |
| 8629 | if (of_property_read_u32((&pdev->dev)->of_node, |
| 8630 | "qcom,ce-opp-freq", |
| 8631 | &qseecom.ce_opp_freq_hz)) { |
| 8632 | pr_debug("CE operating frequency is not defined, setting to default 100MHZ\n"); |
| 8633 | qseecom.ce_opp_freq_hz = QSEE_CE_CLK_100MHZ; |
| 8634 | } |
| 8635 | rc = __qseecom_init_clk(CLK_QSEE); |
| 8636 | if (rc) |
| 8637 | goto exit_destroy_ion_client; |
| 8638 | |
| 8639 | if ((qseecom.qsee.instance != qseecom.ce_drv.instance) && |
| 8640 | (qseecom.support_pfe || qseecom.support_fde)) { |
| 8641 | rc = __qseecom_init_clk(CLK_CE_DRV); |
| 8642 | if (rc) { |
| 8643 | __qseecom_deinit_clk(CLK_QSEE); |
| 8644 | goto exit_destroy_ion_client; |
| 8645 | } |
| 8646 | } else { |
| 8647 | struct qseecom_clk *qclk; |
| 8648 | |
| 8649 | qclk = &qseecom.qsee; |
| 8650 | qseecom.ce_drv.ce_core_clk = qclk->ce_core_clk; |
| 8651 | qseecom.ce_drv.ce_clk = qclk->ce_clk; |
| 8652 | qseecom.ce_drv.ce_core_src_clk = qclk->ce_core_src_clk; |
| 8653 | qseecom.ce_drv.ce_bus_clk = qclk->ce_bus_clk; |
| 8654 | } |
| 8655 | |
| 8656 | qseecom_platform_support = (struct msm_bus_scale_pdata *) |
| 8657 | msm_bus_cl_get_pdata(pdev); |
| 8658 | if (qseecom.qsee_version >= (QSEE_VERSION_02) && |
| 8659 | (!qseecom.is_apps_region_protected && |
| 8660 | !qseecom.appsbl_qseecom_support)) { |
| 8661 | struct resource *resource = NULL; |
| 8662 | struct qsee_apps_region_info_ireq req; |
| 8663 | struct qsee_apps_region_info_64bit_ireq req_64bit; |
| 8664 | struct qseecom_command_scm_resp resp; |
| 8665 | void *cmd_buf = NULL; |
| 8666 | size_t cmd_len; |
| 8667 | |
| 8668 | resource = platform_get_resource_byname(pdev, |
| 8669 | IORESOURCE_MEM, "secapp-region"); |
| 8670 | if (resource) { |
| 8671 | if (qseecom.qsee_version < QSEE_VERSION_40) { |
| 8672 | req.qsee_cmd_id = |
| 8673 | QSEOS_APP_REGION_NOTIFICATION; |
| 8674 | req.addr = (uint32_t)resource->start; |
| 8675 | req.size = resource_size(resource); |
| 8676 | cmd_buf = (void *)&req; |
| 8677 | cmd_len = sizeof(struct |
| 8678 | qsee_apps_region_info_ireq); |
| 8679 | pr_warn("secure app region addr=0x%x size=0x%x", |
| 8680 | req.addr, req.size); |
| 8681 | } else { |
| 8682 | req_64bit.qsee_cmd_id = |
| 8683 | QSEOS_APP_REGION_NOTIFICATION; |
| 8684 | req_64bit.addr = resource->start; |
| 8685 | req_64bit.size = resource_size( |
| 8686 | resource); |
| 8687 | cmd_buf = (void *)&req_64bit; |
| 8688 | cmd_len = sizeof(struct |
| 8689 | qsee_apps_region_info_64bit_ireq); |
| 8690 | pr_warn("secure app region addr=0x%llx size=0x%x", |
| 8691 | req_64bit.addr, req_64bit.size); |
| 8692 | } |
| 8693 | } else { |
| 8694 | pr_err("Fail to get secure app region info\n"); |
| 8695 | rc = -EINVAL; |
| 8696 | goto exit_deinit_clock; |
| 8697 | } |
| 8698 | rc = __qseecom_enable_clk(CLK_QSEE); |
| 8699 | if (rc) { |
| 8700 | pr_err("CLK_QSEE enabling failed (%d)\n", rc); |
| 8701 | rc = -EIO; |
| 8702 | goto exit_deinit_clock; |
| 8703 | } |
| 8704 | rc = qseecom_scm_call(SCM_SVC_TZSCHEDULER, 1, |
| 8705 | cmd_buf, cmd_len, |
| 8706 | &resp, sizeof(resp)); |
| 8707 | __qseecom_disable_clk(CLK_QSEE); |
| 8708 | if (rc || (resp.result != QSEOS_RESULT_SUCCESS)) { |
| 8709 | pr_err("send secapp reg fail %d resp.res %d\n", |
| 8710 | rc, resp.result); |
| 8711 | rc = -EINVAL; |
| 8712 | goto exit_deinit_clock; |
| 8713 | } |
| 8714 | } |
| 8715 | /* |
| 8716 | * By default, appsbl only loads cmnlib. If OEM changes appsbl to |
| 8717 | * load cmnlib64 too, while cmnlib64 img is not present in non_hlos.bin, |
| 8718 | * Pls add "qseecom.commonlib64_loaded = true" here too. |
| 8719 | */ |
| 8720 | if (qseecom.is_apps_region_protected || |
| 8721 | qseecom.appsbl_qseecom_support) |
| 8722 | qseecom.commonlib_loaded = true; |
| 8723 | } else { |
| 8724 | qseecom_platform_support = (struct msm_bus_scale_pdata *) |
| 8725 | pdev->dev.platform_data; |
| 8726 | } |
| 8727 | if (qseecom.support_bus_scaling) { |
| 8728 | init_timer(&(qseecom.bw_scale_down_timer)); |
| 8729 | INIT_WORK(&qseecom.bw_inactive_req_ws, |
| 8730 | qseecom_bw_inactive_req_work); |
| 8731 | qseecom.bw_scale_down_timer.function = |
| 8732 | qseecom_scale_bus_bandwidth_timer_callback; |
| 8733 | } |
| 8734 | qseecom.timer_running = false; |
| 8735 | qseecom.qsee_perf_client = msm_bus_scale_register_client( |
| 8736 | qseecom_platform_support); |
| 8737 | |
| 8738 | qseecom.whitelist_support = qseecom_check_whitelist_feature(); |
| 8739 | pr_warn("qseecom.whitelist_support = %d\n", |
| 8740 | qseecom.whitelist_support); |
| 8741 | |
| 8742 | if (!qseecom.qsee_perf_client) |
| 8743 | pr_err("Unable to register bus client\n"); |
| 8744 | |
| 8745 | atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_READY); |
| 8746 | return 0; |
| 8747 | |
| 8748 | exit_deinit_clock: |
| 8749 | __qseecom_deinit_clk(CLK_QSEE); |
| 8750 | if ((qseecom.qsee.instance != qseecom.ce_drv.instance) && |
| 8751 | (qseecom.support_pfe || qseecom.support_fde)) |
| 8752 | __qseecom_deinit_clk(CLK_CE_DRV); |
| 8753 | exit_destroy_ion_client: |
| 8754 | if (qseecom.ce_info.fde) { |
| 8755 | pce_info_use = qseecom.ce_info.fde; |
| 8756 | for (i = 0; i < qseecom.ce_info.num_fde; i++) { |
| 8757 | kzfree(pce_info_use->ce_pipe_entry); |
| 8758 | pce_info_use++; |
| 8759 | } |
| 8760 | kfree(qseecom.ce_info.fde); |
| 8761 | } |
| 8762 | if (qseecom.ce_info.pfe) { |
| 8763 | pce_info_use = qseecom.ce_info.pfe; |
| 8764 | for (i = 0; i < qseecom.ce_info.num_pfe; i++) { |
| 8765 | kzfree(pce_info_use->ce_pipe_entry); |
| 8766 | pce_info_use++; |
| 8767 | } |
| 8768 | kfree(qseecom.ce_info.pfe); |
| 8769 | } |
| 8770 | ion_client_destroy(qseecom.ion_clnt); |
| 8771 | exit_del_cdev: |
| 8772 | cdev_del(&qseecom.cdev); |
| 8773 | exit_destroy_device: |
| 8774 | device_destroy(driver_class, qseecom_device_no); |
| 8775 | exit_destroy_class: |
| 8776 | class_destroy(driver_class); |
| 8777 | exit_unreg_chrdev_region: |
| 8778 | unregister_chrdev_region(qseecom_device_no, 1); |
| 8779 | return rc; |
| 8780 | } |
| 8781 | |
| 8782 | static int qseecom_remove(struct platform_device *pdev) |
| 8783 | { |
| 8784 | struct qseecom_registered_kclient_list *kclient = NULL; |
| 8785 | unsigned long flags = 0; |
| 8786 | int ret = 0; |
| 8787 | int i; |
| 8788 | struct qseecom_ce_pipe_entry *pce_entry; |
| 8789 | struct qseecom_ce_info_use *pce_info_use; |
| 8790 | |
| 8791 | atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_NOT_READY); |
| 8792 | spin_lock_irqsave(&qseecom.registered_kclient_list_lock, flags); |
| 8793 | |
| 8794 | list_for_each_entry(kclient, &qseecom.registered_kclient_list_head, |
| 8795 | list) { |
| 8796 | if (!kclient) |
| 8797 | goto exit_irqrestore; |
| 8798 | |
| 8799 | /* Break the loop if client handle is NULL */ |
| 8800 | if (!kclient->handle) |
| 8801 | goto exit_free_kclient; |
| 8802 | |
| 8803 | if (list_empty(&kclient->list)) |
| 8804 | goto exit_free_kc_handle; |
| 8805 | |
| 8806 | list_del(&kclient->list); |
| 8807 | mutex_lock(&app_access_lock); |
| 8808 | ret = qseecom_unload_app(kclient->handle->dev, false); |
| 8809 | mutex_unlock(&app_access_lock); |
| 8810 | if (!ret) { |
| 8811 | kzfree(kclient->handle->dev); |
| 8812 | kzfree(kclient->handle); |
| 8813 | kzfree(kclient); |
| 8814 | } |
| 8815 | } |
| 8816 | |
| 8817 | exit_free_kc_handle: |
| 8818 | kzfree(kclient->handle); |
| 8819 | exit_free_kclient: |
| 8820 | kzfree(kclient); |
| 8821 | exit_irqrestore: |
| 8822 | spin_unlock_irqrestore(&qseecom.registered_kclient_list_lock, flags); |
| 8823 | |
| 8824 | if (qseecom.qseos_version > QSEEE_VERSION_00) |
| 8825 | qseecom_unload_commonlib_image(); |
| 8826 | |
| 8827 | if (qseecom.qsee_perf_client) |
| 8828 | msm_bus_scale_client_update_request(qseecom.qsee_perf_client, |
| 8829 | 0); |
| 8830 | if (pdev->dev.platform_data != NULL) |
| 8831 | msm_bus_scale_unregister_client(qseecom.qsee_perf_client); |
| 8832 | |
| 8833 | if (qseecom.support_bus_scaling) { |
| 8834 | cancel_work_sync(&qseecom.bw_inactive_req_ws); |
| 8835 | del_timer_sync(&qseecom.bw_scale_down_timer); |
| 8836 | } |
| 8837 | |
| 8838 | if (qseecom.ce_info.fde) { |
| 8839 | pce_info_use = qseecom.ce_info.fde; |
| 8840 | for (i = 0; i < qseecom.ce_info.num_fde; i++) { |
| 8841 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8842 | kfree(pce_entry); |
| 8843 | pce_info_use++; |
| 8844 | } |
| 8845 | } |
| 8846 | kfree(qseecom.ce_info.fde); |
| 8847 | if (qseecom.ce_info.pfe) { |
| 8848 | pce_info_use = qseecom.ce_info.pfe; |
| 8849 | for (i = 0; i < qseecom.ce_info.num_pfe; i++) { |
| 8850 | pce_entry = pce_info_use->ce_pipe_entry; |
| 8851 | kfree(pce_entry); |
| 8852 | pce_info_use++; |
| 8853 | } |
| 8854 | } |
| 8855 | kfree(qseecom.ce_info.pfe); |
| 8856 | |
| 8857 | /* register client for bus scaling */ |
| 8858 | if (pdev->dev.of_node) { |
| 8859 | __qseecom_deinit_clk(CLK_QSEE); |
| 8860 | if ((qseecom.qsee.instance != qseecom.ce_drv.instance) && |
| 8861 | (qseecom.support_pfe || qseecom.support_fde)) |
| 8862 | __qseecom_deinit_clk(CLK_CE_DRV); |
| 8863 | } |
| 8864 | |
| 8865 | ion_client_destroy(qseecom.ion_clnt); |
| 8866 | |
| 8867 | cdev_del(&qseecom.cdev); |
| 8868 | |
| 8869 | device_destroy(driver_class, qseecom_device_no); |
| 8870 | |
| 8871 | class_destroy(driver_class); |
| 8872 | |
| 8873 | unregister_chrdev_region(qseecom_device_no, 1); |
| 8874 | |
| 8875 | return ret; |
| 8876 | } |
| 8877 | |
| 8878 | static int qseecom_suspend(struct platform_device *pdev, pm_message_t state) |
| 8879 | { |
| 8880 | int ret = 0; |
| 8881 | struct qseecom_clk *qclk; |
| 8882 | |
| 8883 | qclk = &qseecom.qsee; |
| 8884 | atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_SUSPEND); |
| 8885 | if (qseecom.no_clock_support) |
| 8886 | return 0; |
| 8887 | |
| 8888 | mutex_lock(&qsee_bw_mutex); |
| 8889 | mutex_lock(&clk_access_lock); |
| 8890 | |
| 8891 | if (qseecom.current_mode != INACTIVE) { |
| 8892 | ret = msm_bus_scale_client_update_request( |
| 8893 | qseecom.qsee_perf_client, INACTIVE); |
| 8894 | if (ret) |
| 8895 | pr_err("Fail to scale down bus\n"); |
| 8896 | else |
| 8897 | qseecom.current_mode = INACTIVE; |
| 8898 | } |
| 8899 | |
| 8900 | if (qclk->clk_access_cnt) { |
| 8901 | if (qclk->ce_clk != NULL) |
| 8902 | clk_disable_unprepare(qclk->ce_clk); |
| 8903 | if (qclk->ce_core_clk != NULL) |
| 8904 | clk_disable_unprepare(qclk->ce_core_clk); |
| 8905 | if (qclk->ce_bus_clk != NULL) |
| 8906 | clk_disable_unprepare(qclk->ce_bus_clk); |
| 8907 | } |
| 8908 | |
| 8909 | del_timer_sync(&(qseecom.bw_scale_down_timer)); |
| 8910 | qseecom.timer_running = false; |
| 8911 | |
| 8912 | mutex_unlock(&clk_access_lock); |
| 8913 | mutex_unlock(&qsee_bw_mutex); |
| 8914 | cancel_work_sync(&qseecom.bw_inactive_req_ws); |
| 8915 | |
| 8916 | return 0; |
| 8917 | } |
| 8918 | |
| 8919 | static int qseecom_resume(struct platform_device *pdev) |
| 8920 | { |
| 8921 | int mode = 0; |
| 8922 | int ret = 0; |
| 8923 | struct qseecom_clk *qclk; |
| 8924 | |
| 8925 | qclk = &qseecom.qsee; |
| 8926 | if (qseecom.no_clock_support) |
| 8927 | goto exit; |
| 8928 | |
| 8929 | mutex_lock(&qsee_bw_mutex); |
| 8930 | mutex_lock(&clk_access_lock); |
| 8931 | if (qseecom.cumulative_mode >= HIGH) |
| 8932 | mode = HIGH; |
| 8933 | else |
| 8934 | mode = qseecom.cumulative_mode; |
| 8935 | |
| 8936 | if (qseecom.cumulative_mode != INACTIVE) { |
| 8937 | ret = msm_bus_scale_client_update_request( |
| 8938 | qseecom.qsee_perf_client, mode); |
| 8939 | if (ret) |
| 8940 | pr_err("Fail to scale up bus to %d\n", mode); |
| 8941 | else |
| 8942 | qseecom.current_mode = mode; |
| 8943 | } |
| 8944 | |
| 8945 | if (qclk->clk_access_cnt) { |
| 8946 | if (qclk->ce_core_clk != NULL) { |
| 8947 | ret = clk_prepare_enable(qclk->ce_core_clk); |
| 8948 | if (ret) { |
| 8949 | pr_err("Unable to enable/prep CE core clk\n"); |
| 8950 | qclk->clk_access_cnt = 0; |
| 8951 | goto err; |
| 8952 | } |
| 8953 | } |
| 8954 | if (qclk->ce_clk != NULL) { |
| 8955 | ret = clk_prepare_enable(qclk->ce_clk); |
| 8956 | if (ret) { |
| 8957 | pr_err("Unable to enable/prep CE iface clk\n"); |
| 8958 | qclk->clk_access_cnt = 0; |
| 8959 | goto ce_clk_err; |
| 8960 | } |
| 8961 | } |
| 8962 | if (qclk->ce_bus_clk != NULL) { |
| 8963 | ret = clk_prepare_enable(qclk->ce_bus_clk); |
| 8964 | if (ret) { |
| 8965 | pr_err("Unable to enable/prep CE bus clk\n"); |
| 8966 | qclk->clk_access_cnt = 0; |
| 8967 | goto ce_bus_clk_err; |
| 8968 | } |
| 8969 | } |
| 8970 | } |
| 8971 | |
| 8972 | if (qclk->clk_access_cnt || qseecom.cumulative_mode) { |
| 8973 | qseecom.bw_scale_down_timer.expires = jiffies + |
| 8974 | msecs_to_jiffies(QSEECOM_SEND_CMD_CRYPTO_TIMEOUT); |
| 8975 | mod_timer(&(qseecom.bw_scale_down_timer), |
| 8976 | qseecom.bw_scale_down_timer.expires); |
| 8977 | qseecom.timer_running = true; |
| 8978 | } |
| 8979 | |
| 8980 | mutex_unlock(&clk_access_lock); |
| 8981 | mutex_unlock(&qsee_bw_mutex); |
| 8982 | goto exit; |
| 8983 | |
| 8984 | ce_bus_clk_err: |
| 8985 | if (qclk->ce_clk) |
| 8986 | clk_disable_unprepare(qclk->ce_clk); |
| 8987 | ce_clk_err: |
| 8988 | if (qclk->ce_core_clk) |
| 8989 | clk_disable_unprepare(qclk->ce_core_clk); |
| 8990 | err: |
| 8991 | mutex_unlock(&clk_access_lock); |
| 8992 | mutex_unlock(&qsee_bw_mutex); |
| 8993 | ret = -EIO; |
| 8994 | exit: |
| 8995 | atomic_set(&qseecom.qseecom_state, QSEECOM_STATE_READY); |
| 8996 | return ret; |
| 8997 | } |
| 8998 | |
| 8999 | static const struct of_device_id qseecom_match[] = { |
| 9000 | { |
| 9001 | .compatible = "qcom,qseecom", |
| 9002 | }, |
| 9003 | {} |
| 9004 | }; |
| 9005 | |
| 9006 | static struct platform_driver qseecom_plat_driver = { |
| 9007 | .probe = qseecom_probe, |
| 9008 | .remove = qseecom_remove, |
| 9009 | .suspend = qseecom_suspend, |
| 9010 | .resume = qseecom_resume, |
| 9011 | .driver = { |
| 9012 | .name = "qseecom", |
| 9013 | .owner = THIS_MODULE, |
| 9014 | .of_match_table = qseecom_match, |
| 9015 | }, |
| 9016 | }; |
| 9017 | |
| 9018 | static int qseecom_init(void) |
| 9019 | { |
| 9020 | return platform_driver_register(&qseecom_plat_driver); |
| 9021 | } |
| 9022 | |
| 9023 | static void qseecom_exit(void) |
| 9024 | { |
| 9025 | platform_driver_unregister(&qseecom_plat_driver); |
| 9026 | } |
| 9027 | |
| 9028 | MODULE_LICENSE("GPL v2"); |
| 9029 | MODULE_DESCRIPTION("QTI Secure Execution Environment Communicator"); |
| 9030 | |
| 9031 | module_init(qseecom_init); |
| 9032 | module_exit(qseecom_exit); |