rt-thread-official/libcpu/aarch64/cortex-a53/mmu.h

32 lines
855 B
C
Raw Normal View History

2020-01-15 16:46:19 +08:00
/*
2020-02-20 15:42:10 +08:00
* Copyright (c) 2006-2019, RT-Thread Development Team
2020-01-15 16:46:19 +08:00
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
2020-02-20 15:42:10 +08:00
* Date Author Notes
* 2020-02-20 bigmagic first version
2020-01-15 16:46:19 +08:00
*/
2020-02-20 15:42:10 +08:00
#ifndef __MMU_H__
#define __MMU_H__
#define MMU_LEVEL_MASK 0x1ffUL
#define MMU_MAP_ERROR_VANOTALIGN -1
#define MMU_MAP_ERROR_PANOTALIGN -2
#define MMU_MAP_ERROR_NOPAGE -3
#define MMU_MAP_ERROR_CONFLICT -4
#define MEM_ATTR_MEMORY ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x1UL << 2))
#define MEM_ATTR_IO ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x2UL << 2))
void mmu_init(void);
void mmu_enable(void);
int armv8_map_2M(unsigned long va, unsigned long pa, int count, unsigned long attr);
void armv8_map(unsigned long va, unsigned long pa, unsigned long size, unsigned long attr);
#endif /*__MMU_H__*/