226 lines
6.6 KiB
C
226 lines
6.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 MediaTek Inc.
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*/
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#define PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
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#include "private/tmem_pr_fmt.h" PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/kthread.h>
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#include <linux/module.h>
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#include <linux/proc_fs.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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#include <linux/unistd.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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#include <memory_ssmr.h>
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#endif
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#include "private/mld_helper.h"
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#include "private/tmem_error.h"
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#include "private/tmem_priv.h"
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#include "private/tmem_utils.h"
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#include "private/tmem_dev_desc.h"
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#include "tee_impl/tee_ops.h"
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#if defined(CONFIG_MTK_GZ_KREE)
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#include "mtee_impl/mtee_invoke.h"
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#endif
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#include "tee_impl/tee_invoke.h"
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static struct trusted_mem_configs tee_smem_general_configs = {
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.session_keep_alive_enable = false,
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.minimal_chunk_size = SIZE_64K,
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.phys_mem_shift_bits = 6,
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.phys_limit_min_alloc_size = (1 << 6),
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.min_size_check_enable = false,
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.alignment_check_enable = true,
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.caps = 0,
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};
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static struct tmem_device_description tee_smem_devs[] = {
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/* If CONFIG_MTK_SVP_ON_MTEE_SUPPORT enabled, then SVP on MTEE */
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#ifndef CONFIG_MTK_SVP_ON_MTEE_SUPPORT
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#ifdef CONFIG_MTK_SECURE_MEM_SUPPORT
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{
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.kern_tmem_type = TRUSTED_MEM_SVP,
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.tee_smem_type = TEE_SMEM_SVP,
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.mtee_chunks_id = MTEE_MCUHNKS_INVALID,
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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.ssmr_feature_id = SSMR_FEAT_SVP,
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#endif
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/* clang-format off */
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.u_ops_data.tee = {
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.tee_cmds[TEE_OP_ALLOC] = CMD_SEC_MEM_ALLOC,
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.tee_cmds[TEE_OP_ALLOC_ZERO] = CMD_SEC_MEM_ALLOC_ZERO,
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.tee_cmds[TEE_OP_FREE] = CMD_SEC_MEM_UNREF,
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.tee_cmds[TEE_OP_REGION_ENABLE] = CMD_SEC_MEM_ENABLE,
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.tee_cmds[TEE_OP_REGION_DISABLE] = CMD_SEC_MEM_DISABLE,
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},
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/* clang-format on */
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.notify_remote = true,
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.notify_remote_fn = secmem_fr_set_svp_region,
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.mem_cfg = &tee_smem_general_configs,
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.dev_name = "SECMEM_SVP",
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},
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#endif
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#endif
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#ifdef CONFIG_MTK_CAM_SECURITY_SUPPORT
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{
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.kern_tmem_type = TRUSTED_MEM_2D_FR,
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.tee_smem_type = TEE_SMEM_2D_FR,
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.mtee_chunks_id = MTEE_MCUHNKS_INVALID,
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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.ssmr_feature_id = SSMR_FEAT_2D_FR,
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#endif
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/* clang-format off */
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.u_ops_data.tee = {
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.tee_cmds[TEE_OP_ALLOC] = CMD_2D_FR_SMEM_ALLOC,
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.tee_cmds[TEE_OP_ALLOC_ZERO] =
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CMD_2D_FR_SMEM_ALLOC_ZERO,
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.tee_cmds[TEE_OP_FREE] = CMD_2D_FR_SMEM_UNREF,
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.tee_cmds[TEE_OP_REGION_ENABLE] = CMD_2D_FR_SMEM_ENABLE,
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.tee_cmds[TEE_OP_REGION_DISABLE] =
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CMD_2D_FR_SMEM_DISABLE,
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},
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/* clang-format on */
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.notify_remote = false,
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.notify_remote_fn = NULL,
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.mem_cfg = &tee_smem_general_configs,
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.dev_name = "SECMEM_2DFR",
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},
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#endif
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#ifndef CONFIG_MTK_SVP_ON_MTEE_SUPPORT
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#ifdef CONFIG_MTK_WFD_SMEM_SUPPORT
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{
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.kern_tmem_type = TRUSTED_MEM_WFD,
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.tee_smem_type = TEE_SMEM_WFD,
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.mtee_chunks_id = MTEE_MCUHNKS_INVALID,
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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.ssmr_feature_id = SSMR_FEAT_WFD,
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#endif
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/* clang-format off */
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.u_ops_data.tee = {
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.tee_cmds[TEE_OP_ALLOC] = CMD_WFD_SMEM_ALLOC,
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.tee_cmds[TEE_OP_ALLOC_ZERO] = CMD_WFD_SMEM_ALLOC_ZERO,
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.tee_cmds[TEE_OP_FREE] = CMD_WFD_SMEM_UNREF,
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.tee_cmds[TEE_OP_REGION_ENABLE] = CMD_WFD_SMEM_ENABLE,
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.tee_cmds[TEE_OP_REGION_DISABLE] = CMD_WFD_SMEM_DISABLE,
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},
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/* clang-format on */
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.notify_remote = false,
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.notify_remote_fn = NULL,
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.mem_cfg = &tee_smem_general_configs,
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.dev_name = "SECMEM_WFD",
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},
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#endif
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#endif
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#if defined(CONFIG_MTK_SDSP_SHARED_MEM_SUPPORT) \
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&& (defined(CONFIG_MTK_SDSP_SHARED_PERM_VPU_TEE))
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{
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.kern_tmem_type = TRUSTED_MEM_SDSP_SHARED,
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.tee_smem_type = TEE_SMEM_SDSP_SHARED,
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.mtee_chunks_id = MTEE_MCHUNKS_SDSP_SHARED_VPU_TEE,
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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.ssmr_feature_id = SSMR_FEAT_SDSP_TEE_SHAREDMEM,
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#endif
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/* clang-format off */
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.u_ops_data.tee = {
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.tee_cmds[TEE_OP_ALLOC] = CMD_SDSP_SMEM_ALLOC,
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.tee_cmds[TEE_OP_ALLOC_ZERO] = CMD_SDSP_SMEM_ALLOC_ZERO,
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.tee_cmds[TEE_OP_FREE] = CMD_SDSP_SMEM_UNREF,
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.tee_cmds[TEE_OP_REGION_ENABLE] = CMD_SDSP_SMEM_ENABLE,
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.tee_cmds[TEE_OP_REGION_DISABLE] =
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CMD_SDSP_SMEM_DISABLE,
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},
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/* clang-format on */
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#if defined(CONFIG_MTK_GZ_KREE)
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.notify_remote = true,
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.notify_remote_fn = mtee_set_mchunks_region,
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#else
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.notify_remote = false,
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.notify_remote_fn = NULL,
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#endif
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.mem_cfg = &tee_smem_general_configs,
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.dev_name = "SECMEM_SDSP",
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},
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#endif
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};
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#define TEE_SECURE_MEM_DEVICE_COUNT ARRAY_SIZE(tee_smem_devs)
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static struct trusted_mem_device *
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create_tee_smem_device(enum TRUSTED_MEM_TYPE mem_type,
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struct trusted_mem_configs *cfg,
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struct tmem_device_description *dev_desc,
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u32 ssmr_feat_id, const char *dev_name)
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{
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int ret = TMEM_OK;
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struct trusted_mem_device *t_device;
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t_device = create_trusted_mem_device(mem_type, cfg);
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if (INVALID(t_device)) {
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pr_err("create device failed: %d:%s\n", mem_type, dev_name);
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return NULL;
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}
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#if defined(CONFIG_TRUSTONIC_TEE_SUPPORT) || defined(CONFIG_MICROTRUST_TEE_SUPPORT) || \
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defined(CONFIG_TEEGRIS_TEE_SUPPORT)
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get_tee_peer_ops(&t_device->peer_ops);
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#endif
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t_device->dev_desc = dev_desc;
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snprintf(t_device->name, MAX_DEVICE_NAME_LEN, "%s", dev_name);
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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t_device->ssmr_feature_id = ssmr_feat_id;
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#endif
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t_device->mem_type = mem_type;
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ret = register_trusted_mem_device(mem_type, t_device);
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if (ret) {
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destroy_trusted_mem_device(t_device);
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pr_err("register device failed: %d:%s\n", mem_type, dev_name);
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return NULL;
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}
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return t_device;
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}
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int tee_smem_devs_init(void)
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{
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struct trusted_mem_device *t_device;
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int idx = 0;
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pr_info("%s:%d DEVICE COUNT:(%d), MIN CHUNK SIZE: (0x%x)\n", __func__, __LINE__,
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(int)TEE_SECURE_MEM_DEVICE_COUNT, tee_smem_general_configs.minimal_chunk_size);
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for (idx = 0; idx < TEE_SECURE_MEM_DEVICE_COUNT; idx++) {
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t_device = create_tee_smem_device(
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tee_smem_devs[idx].kern_tmem_type,
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tee_smem_devs[idx].mem_cfg, &tee_smem_devs[idx],
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tee_smem_devs[idx].ssmr_feature_id,
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tee_smem_devs[idx].dev_name);
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if (INVALID(t_device)) {
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pr_err("create tee smem device failed: %d:%s\n",
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tee_smem_devs[idx].kern_tmem_type,
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tee_smem_devs[idx].dev_name);
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return TMEM_CREATE_DEVICE_FAILED;
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}
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}
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pr_info("%s:%d (end)\n", __func__, __LINE__);
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return TMEM_OK;
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}
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void tee_smem_devs_exit(void)
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{
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}
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