222 lines
4.3 KiB
C
222 lines
4.3 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 PSEUDO_M4U_SEC_H
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#define PSEUDO_M4U_SEC_H
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#include <linux/ioctl.h>
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#include <linux/fs.h>
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#include <linux/of.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if (defined(CONFIG_TRUSTONIC_TEE_SUPPORT) || \
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defined(CONFIG_MICROTRUST_TEE_SUPPORT))
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#define M4U_TEE_SERVICE_ENABLE
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#endif
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#define M4U_DEVNAME "m4u"
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#define REG_MMU_PT_BASE_ADDR 0x0
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#define MMU_PT_ADDR_MASK GENMASK(31, 7)
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#define F_PGD_REG_BIT32 BIT(0)
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#define F_PGD_REG_BIT33 BIT(1)
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enum m4u_secure_bank {
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MM_SECURE_BANK,
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VPU_SECURE_BANK,
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SECURE_BANK_NUM
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};
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struct m4u_device {
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/*struct miscdevice dev;*/
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struct proc_dir_entry *m4u_dev_proc_entry;
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struct device *dev;
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struct dentry *debug_root;
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};
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/* IOCTL commnad */
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#define MTK_M4U_MAGICNO 'g'
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#define COMPAT_MTK_M4U_T_SEC_INIT _IOW(MTK_M4U_MAGICNO, 50, int)
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#if IS_ENABLED(CONFIG_COMPAT)
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#define MTK_M4U_T_SEC_INIT _IOW(MTK_M4U_MAGICNO, 50, int)
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#endif
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#ifdef M4U_TEE_SERVICE_ENABLE
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#include "tee_client_api.h"
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#define TA_UUID "98fb95bcb4bf42d26473eae48690d7ea"
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#define TDRV_UUID "9073F03A9618383BB1856EB3F990BABD"
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#define CTX_TYPE_TA 0
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#define CTX_TYPE_TDRV 1
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struct m4u_sec_gp_context {
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/* Universally Unique Identifier of secure tl/dr */
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struct TEEC_UUID uuid;
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struct TEEC_Context ctx; /* basic context */
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struct TEEC_Session session; /* session handle */
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struct TEEC_SharedMemory shared_mem; /* shared memory */
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struct mutex ctx_lock;
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int init;
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int ctx_type;
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};
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struct m4u_sec_context {
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const char *name;
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struct m4u_msg *m4u_msg;
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void *imp;
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};
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#define M4U_DRV_UUID \
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{{0x90, 0x73, 0xF0, 0x3A, 0x96, 0x18, 0x38, \
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0x3B, 0xB1, 0x85, 0x6E, 0xB3, 0xF9, 0x90, \
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0xBA, 0xBD} }
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#define M4U_TA_UUID \
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{0x98fb95bc, 0xb4bf, 0x42d2, \
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{0x64, 0x73, 0xea, 0xe4, 0x86, \
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0x90, 0xd7, 0xea} }
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struct m4u_sec_context *m4u_sec_ctx_get(unsigned int cmd);
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int m4u_sec_context_init(void);
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int m4u_sec_context_deinit(void);
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void m4u_sec_set_context(void);
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int m4u_sec_ctx_put(struct m4u_sec_context *ctx);
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int m4u_exec_cmd(struct m4u_sec_context *ctx);
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#define M4U_NONSEC_MVA_START (0x40000000)
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#define CMD_M4U_MAGIC (0x77880000)
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enum m4u_cmd {
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CMD_M4U_ADD = CMD_M4U_MAGIC,
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CMD_M4U_CFG_PORT,
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CMD_M4U_MAP_NONSEC_BUFFER,
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CMD_M4U_SEC_INIT,
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CMD_M4U_ALLOC_MVA,
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CMD_M4U_DEALLOC_MVA,
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CMD_M4U_REG_BACKUP,
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CMD_M4U_REG_RESTORE,
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CMD_M4U_PRINT_PORT,
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CMD_M4U_DUMP_SEC_PGTABLE,
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CMD_M4UTL_INIT,
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CMD_M4U_OPEN_SESSION,
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CMD_M4U_CLOSE_SESSION,
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CMD_M4U_CFG_PORT_ARRAY,
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CMD_M4U_SYSTRACE_MAP,
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CMD_M4U_SYSTRACE_UNMAP,
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CMD_M4U_SYSTRACE_TRANSACT,
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CMD_M4U_LARB_BACKUP,
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CMD_M4U_LARB_RESTORE,
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CMD_M4U_UNMAP_NONSEC_BUFFER,
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CMD_M4U_GET_RESERVED_MEMORY,
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CMD_M4U_GET_SEC_MEM,
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CMD_M4U_NUM,
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};
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#define M4U_RET_OK 0
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#define M4U_RET_UNKNOWN_CMD -1
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#define M4U_RET_NO_PERM -2
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#define EXIT_ERROR ((uint32_t)(-1))
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struct m4u_add_param {
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int a;
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int b;
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int result;
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};
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#define M4U_SIN_NAME_LEN 12
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struct m4u_session_param {
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int sid;
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char name[M4U_SIN_NAME_LEN];
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};
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struct m4u_cfg_port_param {
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int port;
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int virt;
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int sec;
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int distance;
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int direction;
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};
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struct m4u_buf_param {
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int port;
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u32 mva;
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unsigned int size;
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u64 pa;
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};
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#define TZ_M4U_MAX_MEM_CHUNK_NR 2
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struct m4u_sec_mem_param {
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uint64_t pa[TZ_M4U_MAX_MEM_CHUNK_NR];
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uint64_t sz[TZ_M4U_MAX_MEM_CHUNK_NR];
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uint64_t mva[TZ_M4U_MAX_MEM_CHUNK_NR];
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unsigned int nr;
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};
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struct m4u_init_param {
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unsigned long long nonsec_pt_pa;
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int l2_en;
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unsigned int sec_pt_pa;
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struct m4u_sec_mem_param sec_mem;
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unsigned int chunk_nr;
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int reinit;
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};
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struct m4u_larb_restore_param {
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unsigned int larb_idx;
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};
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struct m4u_reserved_memory_param {
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unsigned int reserved_mem_start;
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unsigned int reserved_mem_size;
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};
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struct m4u_msg {
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unsigned int cmd;
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unsigned int retval_for_tbase; /* it must be 0 */
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unsigned int rsp;
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union {
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struct m4u_session_param session_param;
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struct m4u_cfg_port_param port_param;
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struct m4u_buf_param buf_param;
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struct m4u_init_param init_param;
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struct m4u_larb_restore_param larb_param;
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struct m4u_reserved_memory_param reserved_memory_param;
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struct m4u_sec_mem_param sec_mem_param;
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};
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};
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/* logs */
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#define M4U_U64_FMT "0x%08x_%08x"
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#define M4U_U64_PR(u64) ((uint32_t)((u64) >> 32), (uint32_t)(u64))
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/* should be removed before MP */
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#define TZ_M4U_DBG
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif
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