1 /* 2 * Copyright (c) 2022-2023, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef EMI_MPU_H 8 #define EMI_MPU_H 9 10 #include <emi_mpu_priv.h> 11 #include <platform_def.h> 12 13 #define NO_PROTECTION (0) 14 #define SEC_RW (1) 15 #define SEC_RW_NSEC_R (2) 16 #define SEC_RW_NSEC_W (3) 17 #define SEC_R_NSEC_R (4) 18 #define FORBIDDEN (5) 19 #define SEC_R_NSEC_RW (6) 20 21 #define LOCK (1) 22 #define UNLOCK (0) 23 24 #if (EMI_MPU_DGROUP_NUM == 1) 25 #define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ 26 do { \ 27 apc_ary[1] = 0; \ 28 apc_ary[0] = \ 29 (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ 30 (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ 31 (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ 32 (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ 33 ((unsigned int) lock << 31); \ 34 } while (0) 35 #elif (EMI_MPU_DGROUP_NUM == 2) 36 #define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \ 37 d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \ 38 do { \ 39 apc_ary[1] = \ 40 (((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \ 41 (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \ 42 (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \ 43 (((unsigned int) d9) << 3) | ((unsigned int) d8); \ 44 apc_ary[0] = \ 45 (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ 46 (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ 47 (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ 48 (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ 49 ((unsigned int) lock << 31); \ 50 } while (0) 51 #endif 52 53 struct emi_region_info_t { 54 unsigned long long start; 55 unsigned long long end; 56 unsigned int region; 57 unsigned int apc[EMI_MPU_DGROUP_NUM]; 58 }; 59 60 enum MPU_REQ_ORIGIN_ZONE_ID { 61 MPU_REQ_ORIGIN_TEE_ZONE_SVP = 0, 62 MPU_REQ_ORIGIN_TEE_ZONE_TUI = 1, 63 MPU_REQ_ORIGIN_TEE_ZONE_WFD = 2, 64 MPU_REQ_ORIGIN_TEE_ZONE_MAX = 3, 65 MPU_REQ_ORIGIN_ZONE_INVALID = 0x7FFFFFFF, 66 }; 67 68 int emi_mpu_init(void); 69 int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size, 70 uint64_t zone_info); 71 int emi_mpu_set_protection(struct emi_region_info_t *region_info); 72 void set_emi_mpu_regions(void); 73 int set_apu_emi_mpu_region(void); 74 #endif 75
