mpu.h

Go to the documentation of this file.

#ifndef NEXUS_ARCH_MPU_H
#define NEXUS_ARCH_MPU_H
#include "nexus/arch/features.h"
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    uint32_t base;
    uint32_t size_log2;
    uint32_t access;
    uint32_t tex;
    uint32_t subregion_disable;
    bool shareable;
    bool cacheable;
    bool bufferable;
    bool execute_never;
} nx_arch_mpu_v7_region_t;

typedef struct {
    uint32_t rbar;
    uint32_t rasr;
} nx_arch_mpu_v7_encoding_t;

typedef struct {
    uint32_t base;
    uint32_t limit;
    uint32_t access;
    uint32_t shareability;
    uint32_t attribute_index;
    bool execute_never;
} nx_arch_mpu_v8_region_t;

typedef struct {
    uint32_t rbar;
    uint32_t rlar;
} nx_arch_mpu_v8_encoding_t;

nx_arch_result_t nx_arch_mpu_v7_encode(const nx_arch_mpu_v7_region_t* region,
                                       nx_arch_mpu_v7_encoding_t* encoding);

nx_arch_result_t nx_arch_mpu_v8_encode(const nx_arch_mpu_v8_region_t* region,
                                       nx_arch_mpu_v8_encoding_t* encoding);

nx_arch_result_t nx_arch_mpu_v7_program(uint32_t index,
                                        const nx_arch_mpu_v7_region_t* region);

nx_arch_result_t nx_arch_mpu_v8_program(uint32_t index,
                                        const nx_arch_mpu_v8_region_t* region);

nx_arch_result_t nx_arch_mpu_v8_attribute_set(uint32_t index,
                                              uint32_t attribute);
#ifdef __cplusplus
}
#endif
#endif