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/*
* linux/arch/unicore32/include/asm/pgtable-hwdef.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_PGTABLE_HWDEF_H__
#define __UNICORE_PGTABLE_HWDEF_H__
/*
* Hardware page table definitions.
*
* + Level 1 descriptor (PMD)
* - common
*/
#define PMD_TYPE_MASK (3 << 0)
#define PMD_TYPE_TABLE (0 << 0)
/*#define PMD_TYPE_LARGE (1 << 0) */
#define PMD_TYPE_INVALID (2 << 0)
#define PMD_TYPE_SECT (3 << 0)
#define PMD_PRESENT (1 << 2)
#define PMD_YOUNG (1 << 3)
/*#define PMD_SECT_DIRTY (1 << 4) */
#define PMD_SECT_CACHEABLE (1 << 5)
#define PMD_SECT_EXEC (1 << 6)
#define PMD_SECT_WRITE (1 << 7)
#define PMD_SECT_READ (1 << 8)
/*
* + Level 2 descriptor (PTE)
* - common
*/
#define PTE_TYPE_MASK (3 << 0)
#define PTE_TYPE_SMALL (0 << 0)
#define PTE_TYPE_MIDDLE (1 << 0)
#define PTE_TYPE_LARGE (2 << 0)
#define PTE_TYPE_INVALID (3 << 0)
#define PTE_PRESENT (1 << 2)
#define PTE_YOUNG (1 << 3)
#define PTE_DIRTY (1 << 4)
#define PTE_CACHEABLE (1 << 5)
#define PTE_EXEC (1 << 6)
#define PTE_WRITE (1 << 7)
#define PTE_READ (1 << 8)
#endif
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