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<<3) 9#define PAGE_ACCESSED_BIT (3) 10 11#define _PAGE_READ (1<<1) 12#define _PAGE_WRITE (1<<2) 13#define _PAGE_PRESENT (1<<0) 14 15#define _PAGE_MODIFIED (1<<4) 16#define PAGE_MODIFIED_BIT (4) 17 18/* implemented in hardware */ 19#define _PAGE_GLOBAL (1<<6) 20 21#define _PAGE_VALID (1<<7) 22#define PAGE_VALID_BIT (7) 23 24#define _PAGE_DIRTY (1<<8) 25#define PAGE_DIRTY_BIT (8) 26 27#define _PAGE_CACHE (3<<9) 28#define _PAGE_UNCACHE (2<<9) 29#define _PAGE_SO _PAGE_UNCACHE 30 31#define _CACHE_MASK (7<<9) 32 33#define _CACHE_CACHED (_PAGE_VALID | _PAGE_CACHE) 34#define _CACHE_UNCACHED (_PAGE_VALID | _PAGE_UNCACHE) 35 36#define HAVE_ARCH_UNMAPPED_AREA 37 38#endif /* __ASM_CSKY_PGTABLE_BITS_H */ 39