56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
|
/*
|
||
|
|
* 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_FILE (1 << 3) /* only when !PRESENT */
|
||
|
|
#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
|