Merge branch 'akpm' (patches from Andrew)
[linux-2.6-block.git] / arch / csky / abiv2 / inc / abi / pgtable-bits.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
3
4 #ifndef __ASM_CSKY_PGTABLE_BITS_H
5 #define __ASM_CSKY_PGTABLE_BITS_H
6
7 /* implemented in software */
8 #define _PAGE_ACCESSED          (1<<7)
9 #define PAGE_ACCESSED_BIT       (7)
10
11 #define _PAGE_READ              (1<<8)
12 #define _PAGE_WRITE             (1<<9)
13 #define _PAGE_PRESENT           (1<<10)
14
15 #define _PAGE_MODIFIED          (1<<11)
16 #define PAGE_MODIFIED_BIT       (11)
17
18 /* implemented in hardware */
19 #define _PAGE_GLOBAL            (1<<0)
20
21 #define _PAGE_VALID             (1<<1)
22 #define PAGE_VALID_BIT          (1)
23
24 #define _PAGE_DIRTY             (1<<2)
25 #define PAGE_DIRTY_BIT          (2)
26
27 #define _PAGE_SO                (1<<5)
28 #define _PAGE_BUF               (1<<6)
29
30 #define _PAGE_CACHE             (1<<3)
31
32 #define _CACHE_MASK             _PAGE_CACHE
33
34 #define _CACHE_CACHED           (_PAGE_VALID | _PAGE_CACHE | _PAGE_BUF)
35 #define _CACHE_UNCACHED         (_PAGE_VALID | _PAGE_SO)
36
37 #endif /* __ASM_CSKY_PGTABLE_BITS_H */