39 lines
881 B
C
39 lines
881 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
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#ifndef __ASM_CSKY_PGTABLE_BITS_H
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#define __ASM_CSKY_PGTABLE_BITS_H
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/* implemented in software */
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#define _PAGE_ACCESSED (1<<3)
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#define PAGE_ACCESSED_BIT (3)
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#define _PAGE_READ (1<<1)
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#define _PAGE_WRITE (1<<2)
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#define _PAGE_PRESENT (1<<0)
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#define _PAGE_MODIFIED (1<<4)
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#define PAGE_MODIFIED_BIT (4)
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/* implemented in hardware */
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#define _PAGE_GLOBAL (1<<6)
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#define _PAGE_VALID (1<<7)
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#define PAGE_VALID_BIT (7)
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#define _PAGE_DIRTY (1<<8)
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#define PAGE_DIRTY_BIT (8)
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#define _PAGE_CACHE (3<<9)
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#define _PAGE_UNCACHE (2<<9)
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#define _PAGE_SO _PAGE_UNCACHE
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#define _CACHE_MASK (7<<9)
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#define _CACHE_CACHED (_PAGE_VALID | _PAGE_CACHE)
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#define _CACHE_UNCACHED (_PAGE_VALID | _PAGE_UNCACHE)
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#define HAVE_ARCH_UNMAPPED_AREA
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#endif /* __ASM_CSKY_PGTABLE_BITS_H */
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