1 /* 2 * Copyright (c) 2017 Linaro Limited. 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 #ifndef ZEPHYR_INCLUDE_ARCH_ARM_MPU_ARM_MPU_H_ 7 #define ZEPHYR_INCLUDE_ARCH_ARM_MPU_ARM_MPU_H_ 8 9 #if defined(CONFIG_CPU_CORTEX_M0PLUS) || \ 10 defined(CONFIG_CPU_CORTEX_M3) || \ 11 defined(CONFIG_CPU_CORTEX_M4) || \ 12 defined(CONFIG_CPU_CORTEX_M7) || \ 13 defined(CONFIG_ARMV7_R) 14 #include <zephyr/arch/arm/mpu/arm_mpu_v7m.h> 15 #elif defined(CONFIG_CPU_CORTEX_M23) || \ 16 defined(CONFIG_CPU_CORTEX_M33) || \ 17 defined(CONFIG_CPU_CORTEX_M55) || \ 18 defined(CONFIG_CPU_CORTEX_M85) || \ 19 defined(CONFIG_AARCH32_ARMV8_R) 20 #include <zephyr/arch/arm/mpu/arm_mpu_v8.h> 21 #else 22 #error "Unsupported ARM CPU" 23 #endif 24 25 #ifndef _ASMLANGUAGE 26 27 /* Region definition data structure */ 28 struct arm_mpu_region { 29 /* Region Base Address */ 30 uint32_t base; 31 /* Region Name */ 32 const char *name; 33 #if defined(CONFIG_CPU_AARCH32_CORTEX_R) 34 /* Region Size */ 35 uint32_t size; 36 #endif 37 /* Region Attributes */ 38 arm_mpu_region_attr_t attr; 39 }; 40 41 /* MPU configuration data structure */ 42 struct arm_mpu_config { 43 /* Number of regions */ 44 uint32_t num_regions; 45 /* Regions */ 46 const struct arm_mpu_region *mpu_regions; 47 }; 48 49 #if defined(CONFIG_ARMV7_R) 50 #define MPU_REGION_ENTRY(_name, _base, _size, _attr) \ 51 {\ 52 .name = _name, \ 53 .base = _base, \ 54 .size = _size, \ 55 .attr = _attr, \ 56 } 57 #else 58 #define MPU_REGION_ENTRY(_name, _base, _attr) \ 59 {\ 60 .name = _name, \ 61 .base = _base, \ 62 .attr = _attr, \ 63 } 64 #endif 65 66 /* Reference to the MPU configuration. 67 * 68 * This struct is defined and populated for each SoC (in the SoC definition), 69 * and holds the build-time configuration information for the fixed MPU 70 * regions enabled during kernel initialization. Dynamic MPU regions (e.g. 71 * for Thread Stack, Stack Guards, etc.) are programmed during runtime, thus, 72 * not kept here. 73 */ 74 extern const struct arm_mpu_config mpu_config; 75 76 #endif /* _ASMLANGUAGE */ 77 78 #endif /* ZEPHYR_INCLUDE_ARCH_ARM_MPU_ARM_MPU_H_ */ 79
