| /* |
| * 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 |
