--- zzzz-none-000/linux-4.4.60/drivers/firmware/qcom_scm-64.c 2017-04-08 07:53:53.000000000 +0000 +++ scorpion-7490-727/linux-4.4.60/drivers/firmware/qcom_scm-64.c 2021-02-04 17:41:59.000000000 +0000 @@ -1,4 +1,4 @@ -/* Copyright (c) 2015, The Linux Foundation. All rights reserved. +/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -12,7 +12,163 @@ #include #include +#include +#include +#include +#include #include +#include +#include +#include + +#include "qcom_scm.h" + +#define QCOM_SCM_FNID(s, c) ((((s) & 0xFF) << 8) | ((c) & 0xFF)) + +#define MAX_QCOM_SCM_ARGS 10 +#define MAX_QCOM_SCM_RETS 3 + +enum qcom_scm_arg_types { + QCOM_SCM_VAL, + QCOM_SCM_RO, + QCOM_SCM_RW, + QCOM_SCM_BUFVAL, +}; + +#define QCOM_SCM_ARGS_IMPL(num, a, b, c, d, e, f, g, h, i, j, ...) (\ + (((a) & 0x3) << 4) | \ + (((b) & 0x3) << 6) | \ + (((c) & 0x3) << 8) | \ + (((d) & 0x3) << 10) | \ + (((e) & 0x3) << 12) | \ + (((f) & 0x3) << 14) | \ + (((g) & 0x3) << 16) | \ + (((h) & 0x3) << 18) | \ + (((i) & 0x3) << 20) | \ + (((j) & 0x3) << 22) | \ + ((num) & 0xf)) + +#define QCOM_SCM_ARGS(...) QCOM_SCM_ARGS_IMPL(__VA_ARGS__, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) + +/** + * struct qcom_scm_desc + * @arginfo: Metadata describing the arguments in args[] + * @args: The array of arguments for the secure syscall + * @res: The values returned by the secure syscall + */ +struct qcom_scm_desc { + u32 arginfo; + u64 args[MAX_QCOM_SCM_ARGS]; +}; + +static u64 qcom_smccc_convention = -1; +static DEFINE_MUTEX(qcom_scm_lock); + +#define QCOM_SCM_EBUSY_WAIT_MS 30 +#define QCOM_SCM_EBUSY_MAX_RETRY 20 + +#define N_EXT_QCOM_SCM_ARGS 7 +#define FIRST_EXT_ARG_IDX 3 +#define N_REGISTER_ARGS (MAX_QCOM_SCM_ARGS - N_EXT_QCOM_SCM_ARGS + 1) + +bool is_scm_armv8(void) +{ + return true; +} + +/** + * qcom_scm_call() - Invoke a syscall in the secure world + * @dev: device + * @svc_id: service identifier + * @cmd_id: command identifier + * @desc: Descriptor structure containing arguments and return values + * + * Sends a command to the SCM and waits for the command to finish processing. + * This should *only* be called in pre-emptible context. +*/ +static int qcom_scm_call(struct device *dev, u32 owner_id, u32 svc_id, + u32 cmd_id, const struct qcom_scm_desc *desc, + struct arm_smccc_res *res) +{ + int arglen = desc->arginfo & 0xf; + int retry_count = 0, i; + u32 fn_id = QCOM_SCM_FNID(svc_id, cmd_id); + u64 cmd, x5 = desc->args[FIRST_EXT_ARG_IDX]; + dma_addr_t args_phys = 0; + void *args_virt = NULL; + size_t alloc_len; + struct arm_smccc_quirk quirk = {.id = ARM_SMCCC_QUIRK_QCOM_A6}; + + if (unlikely(arglen > N_REGISTER_ARGS)) { + alloc_len = N_EXT_QCOM_SCM_ARGS * sizeof(u64); + args_virt = kzalloc(PAGE_ALIGN(alloc_len), GFP_KERNEL); + + if (!args_virt) + return -ENOMEM; + + if (qcom_smccc_convention == ARM_SMCCC_SMC_32) { + __le32 *args = args_virt; + + for (i = 0; i < N_EXT_QCOM_SCM_ARGS; i++) + args[i] = cpu_to_le32(desc->args[i + + FIRST_EXT_ARG_IDX]); + } else { + __le64 *args = args_virt; + + for (i = 0; i < N_EXT_QCOM_SCM_ARGS; i++) + args[i] = cpu_to_le64(desc->args[i + + FIRST_EXT_ARG_IDX]); + } + + args_phys = dma_map_single(dev, args_virt, alloc_len, + DMA_TO_DEVICE); + + if (dma_mapping_error(dev, args_phys)) { + kfree(args_virt); + return -ENOMEM; + } + + x5 = args_phys; + } + + do { + mutex_lock(&qcom_scm_lock); + + cmd = ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, + qcom_smccc_convention, + owner_id, fn_id); + + quirk.state.a6 = 0; + + do { + arm_smccc_smc_quirk(cmd, desc->arginfo, desc->args[0], + desc->args[1], desc->args[2], x5, + quirk.state.a6, 0, res, &quirk); + + if (res->a0 == QCOM_SCM_INTERRUPTED) + cmd = res->a0; + + } while (res->a0 == QCOM_SCM_INTERRUPTED); + + mutex_unlock(&qcom_scm_lock); + + if (res->a0 == QCOM_SCM_V2_EBUSY) { + if (retry_count++ > QCOM_SCM_EBUSY_MAX_RETRY) + break; + msleep(QCOM_SCM_EBUSY_WAIT_MS); + } + } while (res->a0 == QCOM_SCM_V2_EBUSY); + + if (args_virt) { + dma_unmap_single(dev, args_phys, alloc_len, DMA_TO_DEVICE); + kfree(args_virt); + } + + if ((signed long)res->a0 < 0) + return qcom_scm_remap_error((signed long)res->a0); + + return 0; +} /** * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus @@ -24,18 +180,20 @@ */ int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus) { - return -ENOTSUPP; + return 0; } /** * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus + * @dev: Device pointer * @entry: Entry point function for the cpus * @cpus: The cpumask of cpus that will use the entry point * * Set the Linux entry point for the SCM to transfer control to when coming * out of a power down. CPU power down may be executed on cpuidle or hotplug. */ -int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus) +int __qcom_scm_set_warm_boot_addr(struct device *dev, void *entry, + const cpumask_t *cpus) { return -ENOTSUPP; } @@ -52,12 +210,779 @@ { } -int __qcom_scm_is_call_available(u32 svc_id, u32 cmd_id) +int __qcom_scm_tls_hardening(struct device *dev, + struct scm_cmd_buf_t *scm_cmd_buf, + size_t buf_size, u32 cmd_id) { return -ENOTSUPP; } -int __qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp) +int __qcom_scm_get_feat_version(struct device *dev, u32 feat, u64 *version) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + ret = __qcom_scm_is_call_available(dev, SCM_SVC_INFO, + GET_FEAT_VERSION_CMD); + if (ret <= 0) + return -EAGAIN; + + desc.args[0] = feat; + desc.arginfo = SCM_ARGS(1); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, SCM_SVC_INFO, + GET_FEAT_VERSION_CMD, &desc, &res); + + *version = (u64) res.a1; + + return ret; + +} + +int __qcom_scm_is_call_available(struct device *dev, u32 svc_id, u32 cmd_id) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.arginfo = QCOM_SCM_ARGS(1); + desc.args[0] = QCOM_SCM_FNID(svc_id, cmd_id) | + (ARM_SMCCC_OWNER_SIP << ARM_SMCCC_OWNER_SHIFT); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_INFO, + QCOM_IS_CALL_AVAIL_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_hdcp_req(struct device *dev, struct qcom_scm_hdcp_req *req, + u32 req_cnt, u32 *resp) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + if (req_cnt > QCOM_SCM_HDCP_MAX_REQ_CNT) + return -ERANGE; + + desc.args[0] = req[0].addr; + desc.args[1] = req[0].val; + desc.args[2] = req[1].addr; + desc.args[3] = req[1].val; + desc.args[4] = req[2].addr; + desc.args[5] = req[2].val; + desc.args[6] = req[3].addr; + desc.args[7] = req[3].val; + desc.args[8] = req[4].addr; + desc.args[9] = req[4].val; + desc.arginfo = QCOM_SCM_ARGS(10); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_HDCP, + QCOM_SCM_CMD_HDCP, &desc, &res); + *resp = res.a1; + + return ret; +} + +void __qcom_scm_init(void) +{ + u64 cmd; + struct arm_smccc_res res; + u32 function = QCOM_SCM_FNID(QCOM_SCM_SVC_INFO, QCOM_IS_CALL_AVAIL_CMD); + + /* First try a SMC64 call */ + cmd = ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64, + ARM_SMCCC_OWNER_SIP, function); + + arm_smccc_smc(cmd, QCOM_SCM_ARGS(1), cmd & (~BIT(ARM_SMCCC_TYPE_SHIFT)), + 0, 0, 0, 0, 0, &res); + + if (!res.a0 && res.a1) + qcom_smccc_convention = ARM_SMCCC_SMC_64; + else + qcom_smccc_convention = ARM_SMCCC_SMC_32; +} + +bool __qcom_scm_pas_supported(struct device *dev, u32 peripheral) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = peripheral; + desc.arginfo = QCOM_SCM_ARGS(1); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_IS_SUPPORTED_CMD, &desc, &res); + + return ret ? false : !!res.a1; +} + +int __qcom_scm_pas_init_image(struct device *dev, u32 peripheral, + dma_addr_t metadata_phys) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = peripheral; + desc.args[1] = metadata_phys; + desc.arginfo = QCOM_SCM_ARGS(2, QCOM_SCM_VAL, QCOM_SCM_RW); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_INIT_IMAGE_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_pas_mem_setup(struct device *dev, u32 peripheral, + phys_addr_t addr, phys_addr_t size) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = peripheral; + desc.args[1] = addr; + desc.args[2] = size; + desc.arginfo = QCOM_SCM_ARGS(3); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_MEM_SETUP_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_pas_auth_and_reset(struct device *dev, u32 peripheral, u32 debug) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + static int break_support = 0; + + if (debug) { + ret = __qcom_scm_is_call_available(dev, + QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_AUTH_DEBUG_RESET_CMD); + if (!ret) + pr_err("No Break at reset supported\n"); + else + break_support = 1; + } + + if (break_support) { + desc.args[0] = debug; + desc.arginfo = QCOM_SCM_ARGS(1); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_AUTH_DEBUG_RESET_CMD, &desc, &res); + if (ret || res.a1) + return ret ? : res.a1; + } + + desc.args[0] = peripheral; + desc.arginfo = QCOM_SCM_ARGS(1); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_AUTH_AND_RESET_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral) +{ + int ret; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = peripheral; + desc.arginfo = QCOM_SCM_ARGS(1); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_SHUTDOWN_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = reset; + desc.args[1] = 0; + desc.arginfo = QCOM_SCM_ARGS(2); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_PIL, + QCOM_SCM_PAS_MSS_RESET, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_qfprom_show_authenticate(struct device *dev, char *buf) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + dma_addr_t auth_phys; + void *auth_buf; + + auth_buf = dma_alloc_coherent(dev, sizeof(*buf), + &auth_phys, GFP_KERNEL); + if (!auth_buf) { + dev_err(dev, "Allocation for auth buffer failed\n"); + return -ENOMEM; + } + desc.args[0] = (u64)auth_phys; + desc.args[1] = sizeof(char); + desc.arginfo = SCM_ARGS(2, SCM_RO); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_FUSE, + QCOM_QFPROM_IS_AUTHENTICATE_CMD, &desc, &res); + memcpy(buf, auth_buf, sizeof(char)); + dma_free_coherent(dev, sizeof(*buf), auth_buf, auth_phys); + return ret ? : res.a1; +} + +int __qcom_config_ice_sec(struct device *dev, void *confBuf, int size) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + dma_addr_t conf_phys; + + conf_phys = dma_map_single(dev, confBuf, size, DMA_TO_DEVICE); + + ret = dma_mapping_error(dev, conf_phys); + if (ret) { + dev_err(dev, "Allocation fail for conf buffer\n"); + return -ENOMEM; + } + desc.arginfo = SCM_ARGS(2, QCOM_SCM_PARAM_BUF_RO, QCOM_SCM_PARAM_VAL); + desc.args[0] = (u64)conf_phys; + desc.args[1] = size; + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SVC_ICE, + QCOM_SCM_ICE_CMD, &desc, &res); + + dma_unmap_single(dev, conf_phys, size, DMA_TO_DEVICE); + return ret ? : res.a1; +} + +int __qcom_set_qcekey_sec(struct device *dev, void *confBuf, int size) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + dma_addr_t conf_phys; + + conf_phys = dma_map_single(dev, confBuf, size, DMA_TO_DEVICE); + + ret = dma_mapping_error(dev, conf_phys); + if (ret) { + dev_err(dev, "Allocation fail for conf buffer\n"); + return -ENOMEM; + } + desc.arginfo = SCM_ARGS(1, QCOM_SCM_PARAM_BUF_RO); + desc.args[0] = (u64)conf_phys; + desc.args[1] = size; + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_QCE_CRYPTO_SIP, + QCOM_SCM_QCE_CMD, &desc, &res); + + dma_unmap_single(dev, conf_phys, size, DMA_TO_DEVICE); + return ret ? : res.a1; +} + +int __qcom_sec_release_xpu_prot(struct device *dev) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + + desc.arginfo = SCM_ARGS(0, QCOM_SCM_PARAM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_QCE_CRYPTO_SIP, + QCOM_SCM_QCE_UNLOCK_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_sec_upgrade_auth(struct device *dev, unsigned int sw_type, + unsigned int img_size, unsigned int load_addr) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + + desc.args[0] = sw_type; + desc.args[1] = img_size; + desc.args[2] = (u64)load_addr; + desc.arginfo = SCM_ARGS(3, SCM_VAL, SCM_VAL, SCM_RW); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_BOOT, + QCOM_KERNEL_AUTH_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_qfprom_write_version(struct device *dev, void *wrip, int size) { return -ENOTSUPP; } + +int __qcom_qfprom_read_version(struct device *dev, uint32_t sw_type, + uint32_t value, uint32_t qfprom_ret_ptr) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + + desc.args[0] = sw_type; + desc.args[1] = (u64)value; + desc.args[2] = sizeof(uint32_t); + desc.args[3] = (u64)qfprom_ret_ptr; + desc.args[4] = sizeof(uint32_t); + + desc.arginfo = SCM_ARGS(5, SCM_VAL, SCM_RW, SCM_VAL, SCM_RW, + SCM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_FUSE, + QCOM_QFPROM_ROW_READ_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_regsave(struct device *dev, u32 svc_id, u32 cmd_id, + void *scm_regsave, unsigned int buf_size) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = (u64)virt_to_phys(scm_regsave); + desc.args[1] = buf_size; + desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_REGSAVE, + QCOM_SCM_REGSAVE_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_extwdt(struct device *dev, u32 svc_id, u32 cmd_id, + unsigned int regaddr, unsigned int val) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = (u64)regaddr; + desc.args[1] = val; + desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, SCM_SVC_IO_ACCESS, + QCOM_SCM_EXTWDT_CMD, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_tcsr(struct device *dev, u32 svc_id, u32 cmd_id, + struct qcom_scm_tcsr_req *tcsr_cmd) +{ + return -ENOTSUPP; +} + +int __qcom_scm_dload(struct device *dev, u32 svc_id, u32 cmd_id, void *cmd_buf) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + unsigned int enable; + +#define TCSR_BOOT_MISC_REG 0x193d100ull +#define DLOAD_MODE_ENABLE 0x10ull +#define DLOAD_MODE_DISABLE 0x00ull +#define DLOAD_MODE_ENABLE_WARMRESET 0x20ull + + enable = cmd_buf ? *((unsigned int *)cmd_buf) : 0; + desc.args[0] = TCSR_BOOT_MISC_REG; + if (enable == SET_MAGIC_WARMRESET) + desc.args[1] = DLOAD_MODE_ENABLE_WARMRESET; + else + desc.args[1] = enable ? DLOAD_MODE_ENABLE : DLOAD_MODE_DISABLE; + desc.arginfo = SCM_ARGS(2, SCM_VAL, SCM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, SCM_SVC_IO_ACCESS, + SCM_IO_WRITE, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_sdi(struct device *dev, u32 svc_id, u32 cmd_id) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = 1ull; /* Disable wdog debug */ + desc.args[1] = 1ull; /* SDI Disable */ + desc.arginfo = SCM_ARGS(2, SCM_VAL, SCM_VAL); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, QCOM_SCM_SVC_BOOT, + SCM_CMD_TZ_CONFIG_HW_FOR_RAM_DUMP_ID, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_mem_prot_assign(struct device *dev, struct sg_table *table, + u32 *source_vm_copy, + size_t source_vm_copy_size, + struct dest_vm_and_perm_info *dest_vm_copy, + size_t dest_vm_copy_size, + struct mem_prot_info *sg_table_copy, + size_t sg_table_copy_size, + u32 *resp, size_t resp_size) +{ + int ret = 0; + int batch_start, batch_end; + u64 batch_size; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = virt_to_phys(sg_table_copy); + desc.args[1] = sg_table_copy_size; + desc.args[2] = virt_to_phys(source_vm_copy); + desc.args[3] = source_vm_copy_size; + desc.args[4] = virt_to_phys(dest_vm_copy); + desc.args[5] = dest_vm_copy_size; + desc.args[6] = 0; + + desc.arginfo = SCM_ARGS(7, SCM_RO, SCM_VAL, SCM_RO, SCM_VAL, + SCM_RO, SCM_VAL, SCM_VAL); + + dmac_flush_range(source_vm_copy, + (void *)source_vm_copy + source_vm_copy_size); + dmac_flush_range(sg_table_copy, + (void *)sg_table_copy + sg_table_copy_size); + dmac_flush_range(dest_vm_copy, + (void *)dest_vm_copy + dest_vm_copy_size); + + batch_start = 0; + while (batch_start < table->nents) { + /* Ensure no size zero batches */ + batch_size = sg_table_copy[batch_start].size; + batch_end = batch_start + 1; + while (1) { + u64 size; + + if (batch_end >= table->nents) + break; + if (batch_end - batch_start + >= BATCH_MAX_SECTIONS) + break; + + size = sg_table_copy[batch_end].size; + if (size + batch_size >= BATCH_MAX_SIZE) + break; + + batch_size += size; + batch_end++; + } + + desc.args[0] = + virt_to_phys(&sg_table_copy[batch_start]); + desc.args[1] = (batch_end - batch_start) * + sizeof(sg_table_copy[0]); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, SCM_SVC_MP, + MEM_PROT_ASSIGN_ID, &desc, &res); + *resp = res.a1; + + if (ret) { + pr_info("%s: Failed to assign memory protection, ret = %d\n", + __func__, ret); + break; + } + batch_start = batch_end; + } + return ret; +} + +int __qcom_scm_mem_protect_lock(struct device *dev, struct cp2_lock_req *req, + size_t req_size, u32 *resp, size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = req->chunks.chunk_list; + desc.args[1] = req->chunks.chunk_list_size; + desc.args[2] = req->chunks.chunk_size; + desc.args[3] = req->mem_usage; + desc.args[4] = req->lock; + desc.args[5] = 0; + desc.arginfo = SCM_ARGS(6, SCM_RW, SCM_VAL, SCM_VAL, SCM_VAL, + SCM_VAL, SCM_VAL); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, SCM_SVC_MP, + MEM_PROTECT_LOCK_ID2_FLAT, &desc, &res); + *resp = res.a1; + + return ret; +} + +int __qcom_scm_qseecom_notify(struct device *dev, + struct qsee_notify_app *req, size_t req_size, + struct qseecom_command_scm_resp *resp, + size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL); + desc.args[0] = req->applications_region_addr; + desc.args[1] = req->applications_region_size; + + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_NOTIFY_REGION_ID, &desc, &res); + + resp->result = res.a1; + resp->resp_type = res.a2; + resp->data = res.a3; + + return ret; +} + +int __qcom_scm_qseecom_load(struct device *dev, uint32_t smc_id, + uint32_t cmd_id, union qseecom_load_ireq *req, + size_t req_size, + struct qseecom_command_scm_resp *resp, + size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.arginfo = SCM_ARGS(3, SCM_VAL, SCM_VAL, SCM_VAL); + desc.args[0] = req->load_lib_req.mdt_len; + desc.args[1] = req->load_lib_req.img_len; + desc.args[2] = req->load_lib_req.phy_addr; + + if (cmd_id == QSEOS_APP_START_COMMAND) + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_LOAD_APP_ID, &desc, &res); + else + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_LOAD_LIB, &desc, &res); + + resp->result = res.a1; + resp->resp_type = res.a2; + resp->data = res.a3; + + return ret; +} + +int __qcom_scm_qseecom_send_data(struct device *dev, + union qseecom_client_send_data_ireq *req, + size_t req_size, + struct qseecom_command_scm_resp *resp, + size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.arginfo = SCM_ARGS(5, SCM_VAL, SCM_RW, SCM_VAL, SCM_RW, SCM_VAL); + desc.args[0] = req->v1.app_id; + desc.args[1] = req->v1.req_ptr; + desc.args[2] = req->v1.req_len; + desc.args[3] = req->v1.rsp_ptr; + desc.args[4] = req->v1.rsp_len; + + ret = qcom_scm_call(dev, TZ_OWNER_TZ_APPS, TZ_SVC_APP_ID_PLACEHOLDER, + TZ_ARMv8_CMD_SEND_DATA_ID, &desc, &res); + + resp->result = res.a1; + resp->resp_type = res.a2; + resp->data = res.a3; + + return ret; +} + +int __qcom_scm_qseecom_unload(struct device *dev, uint32_t smc_id, + uint32_t cmd_id, struct qseecom_unload_ireq *req, + size_t req_size, + struct qseecom_command_scm_resp *resp, + size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + switch (cmd_id) { + case QSEOS_APP_SHUTDOWN_COMMAND: + desc.arginfo = SCM_ARGS(1); + desc.args[0] = req->app_id; + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, + TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_UNLOAD_APP_ID, + &desc, &res); + break; + + case QSEE_UNLOAD_SERV_IMAGE_COMMAND: + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_UNLOAD_LIB, &desc, &res); + break; + + default: + pr_info("\nIncorrect command id has been passed"); + return -EINVAL; + } + + resp->result = res.a1; + resp->resp_type = res.a2; + resp->data = res.a3; + + return ret; +} + +int __qcom_scm_tz_register_log_buf(struct device *dev, + struct qsee_reg_log_buf_req *request, + size_t req_size, + struct qseecom_command_scm_resp *response, + size_t resp_size) +{ + int ret = 0; + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL); + desc.args[0] = request->phy_addr; + desc.args[1] = request->len; + + ret = qcom_scm_call(dev, TZ_OWNER_QSEE_OS, TZ_SVC_APP_MGR, + TZ_ARMv8_CMD_REGISTER_LOG_BUF, &desc, &res); + + response->result = res.a1; + response->resp_type = res.a2; + response->data = res.a3; + + return ret; +} + + +int __qcom_scm_tzsched(struct device *dev, const void *req, size_t req_size, + void *resp, size_t resp_size) +{ + return -ENOTSUPP; +} + +int __qcom_scm_pinmux_read(u32 svc_id, u32 cmd_id, u32 arg1) +{ + return -ENOTSUPP; +} + +int __qcom_scm_pinmux_write(u32 svc_id, u32 cmd_id, u32 arg1, u32 arg2) +{ + return -ENOTSUPP; +} + +int __qcom_scm_usb_mode_write(u32 svc_id, u32 cmd_id, u32 arg1, u32 arg2) +{ + return -ENOTSUPP; +} + +int __qcom_scm_cache_dump(u32 cpu) +{ + return -ENOTSUPP; +} + +int __qcom_scm_get_cache_dump_size(struct device *dev, u32 cmd_id, + void *cmd_buf, u32 size) +{ + return -ENOTSUPP; +} + +int __qcom_scm_send_cache_dump_addr(struct device *dev, u32 cmd_id, + void *cmd_buf, u32 size) +{ + return -ENOTSUPP; +} + +int __qcom_scm_pshold(struct device *dev) +{ + return -ENOTSUPP; +} + +static int __qcom_scm_tz_hvc_log_v8(struct device *dev, u32 svc_id, u32 cmd_id, + u32 log_buf, u32 buf_size) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = log_buf; + desc.args[1] = buf_size; + desc.arginfo = SCM_ARGS(2, SCM_RW, SCM_VAL); + + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, svc_id, + cmd_id, &desc, &res); + + return ret ? : res.a1; +} + +int __qcom_scm_hvc_log(struct device *dev, u32 svc_id, u32 cmd_id, + void *ker_buf, u32 buf_len) +{ + int ret; + dma_addr_t log_buf; + + log_buf = dma_map_single(dev, ker_buf, buf_len, DMA_FROM_DEVICE); + ret = dma_mapping_error(dev, log_buf); + + if (ret != 0) { + pr_err("DMA Mapping Error : %d\n", ret); + return -EINVAL; + } + + ret = __qcom_scm_tz_hvc_log_v8(dev, svc_id, cmd_id, log_buf, buf_len); + dma_unmap_single(dev, log_buf, buf_len, DMA_FROM_DEVICE); + + return ret; +} + +int __qcom_scm_tz_log(struct device *dev, u32 svc_id, u32 cmd_id, + void *ker_buf, u32 buf_len) +{ + int ret; + dma_addr_t log_buf; + + log_buf = dma_map_single(dev, ker_buf, buf_len, DMA_FROM_DEVICE); + ret = dma_mapping_error(dev, log_buf); + + if (ret != 0) { + pr_err("DMA Mapping Error : %d\n", ret); + return -EINVAL; + } + + ret = __qcom_scm_tz_hvc_log_v8(dev, svc_id, cmd_id, log_buf, buf_len); + dma_unmap_single(dev, log_buf, buf_len, DMA_FROM_DEVICE); + + return ret; +} + +int __qcom_los_scm_call(struct device *dev, u32 svc_id, u32 cmd_id, + void *cmd_buf, size_t size) +{ + return -ENOTSUPP; +} + +int __qcom_fuseipq_scm_call(struct device *dev, u32 svc_id, u32 cmd_id, + void *cmd_buf, size_t size) +{ + int ret; + struct arm_smccc_res res; + struct qcom_scm_desc desc = {0}; + uint64_t *status; + + desc.arginfo = SCM_ARGS(1, SCM_RO); + desc.args[0] = *((unsigned int *)cmd_buf); + ret = qcom_scm_call(dev, ARM_SMCCC_OWNER_SIP, svc_id, + cmd_id, &desc, &res); + status = (uint64_t *)(*(((uint64_t *)cmd_buf) + 1)); + *status = res.a1; + return ret ? : res.a1; +}