esp-idf/components/hal/esp32/include/hal/mpu_ll.h

55 wiersze
965 B
C

/*
* SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include "soc/soc_caps.h"
#include "xt_instr_macros.h"
#ifdef __cplusplus
extern "C" {
#endif
static inline uint32_t mpu_ll_id_to_addr(unsigned id)
{
// vpn - id
// 0x00000000 = 0
// 0x20000000 = 1
// 0x40000000 = 2
// 0x60000000 = 3
// 0x80000000 = 4
// 0xa0000000 = 5
// 0xc0000000 = 6
// 0xe0000000 = 7
return id * SOC_MPU_MIN_REGION_SIZE;
}
static inline void mpu_ll_set_region_rw(uint32_t addr)
{
WDTLB(0x0, addr); // cached, no allocate
}
static inline void mpu_ll_set_region_rwx(uint32_t addr)
{
WDTLB(0x2, addr); // bypass cache
}
static inline void mpu_ll_set_region_x(uint32_t addr)
{
WITLB(0x3, addr); // cached
}
static inline void mpu_ll_set_region_illegal(uint32_t addr)
{
WITLB(0xF, addr);
WDTLB(0xF, addr);
}
#ifdef __cplusplus
}
#endif