107 lines
3.4 KiB
C
107 lines
3.4 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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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/kernel.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/version.h>
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#include "private/tmem_entry.h"
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#include "private/tmem_utils.h"
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#include "public/trusted_mem_api.h"
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static inline void trusted_mem_type_enum_validate(void)
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{
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_SVP == (int)TRUSTED_MEM_SVP);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_PROT == (int)TRUSTED_MEM_PROT);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_WFD == (int)TRUSTED_MEM_WFD);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_HAPP == (int)TRUSTED_MEM_HAPP);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_HAPP_EXTRA
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== (int)TRUSTED_MEM_HAPP_EXTRA);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_SDSP == (int)TRUSTED_MEM_SDSP);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_SDSP_SHARED
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== (int)TRUSTED_MEM_SDSP_SHARED);
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COMPILE_ASSERT((int)TRUSTED_MEM_REQ_2D_FR == (int)TRUSTED_MEM_2D_FR);
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COMPILE_ASSERT((int)(TRUSTED_MEM_MAX - 1) == (int)TRUSTED_MEM_2D_FR);
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}
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static inline enum TRUSTED_MEM_TYPE
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get_mem_type(enum TRUSTED_MEM_REQ_TYPE req_type)
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{
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trusted_mem_type_enum_validate();
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switch (req_type) {
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case TRUSTED_MEM_REQ_SVP:
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return TRUSTED_MEM_SVP;
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case TRUSTED_MEM_REQ_PROT:
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return TRUSTED_MEM_PROT;
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case TRUSTED_MEM_REQ_WFD:
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return TRUSTED_MEM_WFD;
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case TRUSTED_MEM_REQ_HAPP:
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return TRUSTED_MEM_HAPP;
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case TRUSTED_MEM_REQ_HAPP_EXTRA:
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return TRUSTED_MEM_HAPP_EXTRA;
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case TRUSTED_MEM_REQ_SDSP:
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return TRUSTED_MEM_SDSP;
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case TRUSTED_MEM_REQ_SDSP_SHARED:
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return TRUSTED_MEM_SDSP_SHARED;
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case TRUSTED_MEM_REQ_2D_FR:
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return TRUSTED_MEM_2D_FR;
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default:
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return TRUSTED_MEM_SVP;
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}
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}
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int trusted_mem_api_alloc(enum TRUSTED_MEM_REQ_TYPE mem_type, u32 alignment,
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u32 size, u32 *refcount, u32 *sec_handle,
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uint8_t *owner, uint32_t id)
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{
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return tmem_core_alloc_chunk(get_mem_type(mem_type), alignment, size,
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refcount, sec_handle, owner, id, 0);
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}
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EXPORT_SYMBOL(trusted_mem_api_alloc);
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int trusted_mem_api_alloc_zero(enum TRUSTED_MEM_REQ_TYPE mem_type,
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u32 alignment, u32 size, u32 *refcount,
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u32 *sec_handle, uint8_t *owner, uint32_t id)
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{
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return tmem_core_alloc_chunk(get_mem_type(mem_type), alignment, size,
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refcount, sec_handle, owner, id, 1);
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}
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EXPORT_SYMBOL(trusted_mem_api_alloc_zero);
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int trusted_mem_api_query_pa(enum TRUSTED_MEM_REQ_TYPE mem_type, u32 alignment,
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u32 size, u32 *refcount, u32 *handle,
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u8 *owner, u32 id, u32 clean, uint64_t *phy_addr)
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{
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#if defined(CONFIG_MTK_SVP_ON_MTEE_SUPPORT) && defined(CONFIG_MTK_GZ_KREE)
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return tmem_query_gz_handle_to_pa(get_mem_type(mem_type), alignment, size,
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refcount, handle, owner, id, 0, phy_addr);
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#else
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return tmem_query_sec_handle_to_pa(get_mem_type(mem_type), alignment, size,
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refcount, handle, owner, id, 0, phy_addr);
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#endif
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}
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EXPORT_SYMBOL(trusted_mem_api_query_pa);
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int trusted_mem_api_unref(enum TRUSTED_MEM_REQ_TYPE mem_type, u32 sec_handle,
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uint8_t *owner, uint32_t id)
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{
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return tmem_core_unref_chunk(get_mem_type(mem_type), sec_handle, owner,
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id);
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}
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EXPORT_SYMBOL(trusted_mem_api_unref);
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bool trusted_mem_api_get_region_info(enum TRUSTED_MEM_REQ_TYPE mem_type,
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u64 *pa, u32 *size)
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{
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return tmem_core_get_region_info(get_mem_type(mem_type), pa, size);
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}
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EXPORT_SYMBOL(trusted_mem_api_get_region_info);
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