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) 36 37 #endif /* __ASM_CSKY_PGTABLE_BITS_H */ 38