blob: 6b05cea3a282af1565b49c80904849270e72a14e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/*
* Copyright (c) 2006-2025, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-01-30 lizhirui first version
* 2021-05-03 lizhirui porting to c906/c908
* 2023-10-12 Shell Add permission control API
* 2025-04-26 GuEe-GUI Follow the specific and vendor
*/
#ifndef __MMU_VENDOR_H__
#define __MMU_VENDOR_H__
#include <asm-generic.h>
/* Sv32 has no memory-type bits; use the common PMA defaults on RV32. */
#if __riscv_xlen == 64
/* C-SKY extend */
#define __PTE_SEC BIT(59) /* Security */
#define __PTE_SHARE BIT(60) /* Shareable */
#define __PTE_BUF BIT(61) /* Bufferable */
#define __PTE_CACHE BIT(62) /* Cacheable */
#define __PTE_SO BIT(63) /* Strong Order */
#define PTE_VENDOR_PMA (__PTE_CACHE | __PTE_BUF | __PTE_SHARE)
#define PTE_VENDOR_NOCACHE (__PTE_BUF | __PTE_SHARE)
#define PTE_VENDOR_IO (__PTE_SO | __PTE_SHARE)
#endif /* __riscv_xlen == 64 */
#define MMU_VENDOR_MAP_K_RW (PTE_ATTR_KERNEL | PTE_G)
#define MMU_VENDOR_MAP_EARLY (MMU_VENDOR_MAP_K_RW | PTE_VENDOR_PMA)
#endif /* __MMU_VENDOR_H__ */
|
