160 lines
4.2 KiB
C
160 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __CMDQ_SEC_H__
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#define __CMDQ_SEC_H__
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#include "mdp_cmdq_helper_ext.h"
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#if defined(CMDQ_SECURE_PATH_SUPPORT)
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#include "tee_client_api.h"
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#include "cmdq_sec_iwc_common.h"
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#if defined(CMDQ_GP_SUPPORT)
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#include "cmdq_sec_gp.h"
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#else
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#include "cmdq_sec_trustonic.h"
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#endif
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#endif /* CMDQ_SECURE_PATH_SUPPORT */
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/*
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* error code for CMDQ
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*/
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#define CMDQ_ERR_NULL_SEC_CTX_HANDLE (6000)
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#define CMDQ_ERR_SEC_CTX_SETUP (6001)
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#define CMDQ_ERR_SEC_CTX_TEARDOWN (6002)
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/*
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* inter-world communication state
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*/
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enum CMDQ_IWC_STATE_ENUM {
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IWC_INIT = 0,
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IWC_CONTEXT_INITED = 1,
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IWC_WSM_ALLOCATED = 2,
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IWC_SES_OPENED = 3,
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IWC_SES_MSG_PACKAGED = 4,
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IWC_SES_TRANSACTED = 5,
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IWC_SES_ON_TRANSACTED = 6,
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IWC_END_OF_ENUM = 7,
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};
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/* CMDQ secure context struct
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* note it is not global data, each process has its own CMDQ sec context
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*/
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struct cmdqSecContextStruct {
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struct list_head listEntry;
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/* basic info */
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uint32_t tgid; /* tgid of process context */
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uint32_t referCount; /* reference count for open cmdq device node */
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/* iwc state */
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enum CMDQ_IWC_STATE_ENUM state;
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/* iwc information */
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void *iwcMessage; /* message buffer */
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void *iwcMessageEx; /* message buffer extra */
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#if defined(CMDQ_SECURE_PATH_SUPPORT)
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struct cmdq_sec_tee_context tee; /* trustzone parameters */
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#endif
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};
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extern const u32 isp_iwc_buf_size[];
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int32_t cmdq_sec_init_allocate_resource_thread(void *data);
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s32 cmdq_sec_task_copy_to_buffer(struct cmdqRecStruct *task,
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struct cmdqCommandStruct *desc);
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const struct cmdq_controller *cmdq_sec_get_controller(void);
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/*
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* Create and destroy non-cachable shared memory,
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* used to share data for CMDQ driver between NWd and SWd
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*
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* Be careful that we should not disvlose any information about secure buffer
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* address of
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*/
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int32_t cmdq_sec_create_shared_memory(
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struct cmdqSecSharedMemoryStruct **pHandle, const uint32_t size);
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int32_t cmdq_sec_destroy_shared_memory(
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struct cmdqSecSharedMemoryStruct *handle);
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/*
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* Callback to fill message buffer for secure task
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*
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* Params:
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* init32_t command id
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* void* pornter of TaskStruct
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* int32_t CMDQ HW thread id
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* void* the inter-world communication buffer
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* Return:
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* >=0 for success;
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*/
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typedef int32_t(*CmdqSecFillIwcCB) (int32_t, void *, int32_t, void *, void *);
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/*
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* Entry secure world to handle secure path jobs
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* .submit task
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* .cancel error task
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*/
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int32_t cmdq_sec_exec_task_async_unlocked(
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struct cmdqRecStruct *pTask, int32_t thread);
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int32_t cmdq_sec_cancel_error_task_unlocked(
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struct cmdqRecStruct *pTask, int32_t thread,
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struct cmdqSecCancelTaskResultStruct *pResult);
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int32_t cmdq_sec_allocate_path_resource_unlocked(bool throwAEE);
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s32 cmdq_sec_get_secure_thread_exec_counter(const s32 thread);
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s32 cmdq_sec_revise_jump(struct cmdqRecStruct *handle);
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s32 cmdq_sec_handle_error_result(struct cmdqRecStruct *task, s32 thread,
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const s32 waitQ, bool throw_aee);
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/* function declaretion */
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struct cmdqSecContextStruct *cmdq_sec_context_handle_create(uint32_t tgid);
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s32 cmdq_sec_insert_backup_cookie_instr(struct cmdqRecStruct *task, s32 thread);
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void cmdq_sec_dump_secure_thread_cookie(s32 thread);
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s32 cmdq_mbox_sec_chan_id(void *chan);
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/*
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* secure path control
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*/
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void cmdq_sec_lock_secure_path(void);
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void cmdq_sec_unlock_secure_path(void);
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void cmdqSecInitialize(void);
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void cmdqSecDeInitialize(void);
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void cmdqSecEnableProfile(const bool enable);
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#if defined(CMDQ_SECURE_PATH_SUPPORT)
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/*
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* tee vendor interface
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*/
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void cmdq_sec_setup_tee_context(struct cmdq_sec_tee_context *tee);
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s32 cmdq_sec_init_context(struct cmdq_sec_tee_context *tee);
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s32 cmdq_sec_deinit_context(struct cmdq_sec_tee_context *tee);
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s32 cmdq_sec_allocate_wsm(struct cmdq_sec_tee_context *tee, void **wsm_buffer,
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u32 size, void **wsm_buf_ex, u8 idx, u32 size_ex);
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s32 cmdq_sec_free_wsm(struct cmdq_sec_tee_context *tee, void **wsm_buffer,
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u8 idx);
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s32 cmdq_sec_open_session(struct cmdq_sec_tee_context *tee, void *wsm_buffer);
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s32 cmdq_sec_close_session(struct cmdq_sec_tee_context *tee);
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s32 cmdq_sec_execute_session(struct cmdq_sec_tee_context *tee,
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u32 cmd, s32 timeout_ms, bool share_mem_ex);
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#endif /* CMDQ_SECURE_PATH_SUPPORT */
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#endif /* __DDP_CMDQ_SEC_H__ */
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