1*8454f0d6SDawei Chien /* 2*8454f0d6SDawei Chien * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved. 3*8454f0d6SDawei Chien * 4*8454f0d6SDawei Chien * SPDX-License-Identifier: BSD-3-Clause 5*8454f0d6SDawei Chien */ 6*8454f0d6SDawei Chien 7*8454f0d6SDawei Chien #ifndef EMI_MPU_H 8*8454f0d6SDawei Chien #define EMI_MPU_H 9*8454f0d6SDawei Chien 10*8454f0d6SDawei Chien #include <emi_mpu_priv.h> 11*8454f0d6SDawei Chien #include <platform_def.h> 12*8454f0d6SDawei Chien 13*8454f0d6SDawei Chien #define NO_PROTECTION (0) 14*8454f0d6SDawei Chien #define SEC_RW (1) 15*8454f0d6SDawei Chien #define SEC_RW_NSEC_R (2) 16*8454f0d6SDawei Chien #define SEC_RW_NSEC_W (3) 17*8454f0d6SDawei Chien #define SEC_R_NSEC_R (4) 18*8454f0d6SDawei Chien #define FORBIDDEN (5) 19*8454f0d6SDawei Chien #define SEC_R_NSEC_RW (6) 20*8454f0d6SDawei Chien 21*8454f0d6SDawei Chien #define LOCK (1) 22*8454f0d6SDawei Chien #define UNLOCK (0) 23*8454f0d6SDawei Chien 24*8454f0d6SDawei Chien #if (EMI_MPU_DGROUP_NUM == 1) 25*8454f0d6SDawei Chien #define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \ 26*8454f0d6SDawei Chien do { \ 27*8454f0d6SDawei Chien apc_ary[1] = 0; \ 28*8454f0d6SDawei Chien apc_ary[0] = \ 29*8454f0d6SDawei Chien (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ 30*8454f0d6SDawei Chien (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ 31*8454f0d6SDawei Chien (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ 32*8454f0d6SDawei Chien (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ 33*8454f0d6SDawei Chien ((unsigned int) lock << 31); \ 34*8454f0d6SDawei Chien } while (0) 35*8454f0d6SDawei Chien #elif (EMI_MPU_DGROUP_NUM == 2) 36*8454f0d6SDawei Chien #define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \ 37*8454f0d6SDawei Chien d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \ 38*8454f0d6SDawei Chien do { \ 39*8454f0d6SDawei Chien apc_ary[1] = \ 40*8454f0d6SDawei Chien (((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \ 41*8454f0d6SDawei Chien (((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \ 42*8454f0d6SDawei Chien (((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \ 43*8454f0d6SDawei Chien (((unsigned int) d9) << 3) | ((unsigned int) d8); \ 44*8454f0d6SDawei Chien apc_ary[0] = \ 45*8454f0d6SDawei Chien (((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \ 46*8454f0d6SDawei Chien (((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \ 47*8454f0d6SDawei Chien (((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \ 48*8454f0d6SDawei Chien (((unsigned int) d1) << 3) | ((unsigned int) d0) | \ 49*8454f0d6SDawei Chien ((unsigned int) lock << 31); \ 50*8454f0d6SDawei Chien } while (0) 51*8454f0d6SDawei Chien #endif 52*8454f0d6SDawei Chien 53*8454f0d6SDawei Chien struct emi_region_info_t { 54*8454f0d6SDawei Chien unsigned long long start; 55*8454f0d6SDawei Chien unsigned long long end; 56*8454f0d6SDawei Chien unsigned int region; 57*8454f0d6SDawei Chien unsigned int apc[EMI_MPU_DGROUP_NUM]; 58*8454f0d6SDawei Chien }; 59*8454f0d6SDawei Chien 60*8454f0d6SDawei Chien int emi_mpu_init(void); 61*8454f0d6SDawei Chien int emi_mpu_set_protection(struct emi_region_info_t *region_info); 62*8454f0d6SDawei Chien void set_emi_mpu_regions(void); 63*8454f0d6SDawei Chien 64*8454f0d6SDawei Chien #endif 65