1 /* 2 * arch/arm/include/asm/pgtable-2level-hwdef.h 3 * 4 * Copyright (C) 1995-2002 Russell King 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #ifndef _ASM_PGTABLE_2LEVEL_HWDEF_H 11 #define _ASM_PGTABLE_2LEVEL_HWDEF_H 12 13 /* 14 * Hardware page table definitions. 15 * 16 * + Level 1 descriptor (PMD) 17 * - common 18 */ 19 #define PMD_TYPE_MASK (_AT(pmdval_t, 3) << 0) 20 #define PMD_TYPE_FAULT (_AT(pmdval_t, 0) << 0) 21 #define PMD_TYPE_TABLE (_AT(pmdval_t, 1) << 0) 22 #define PMD_TYPE_SECT (_AT(pmdval_t, 2) << 0) 23 #define PMD_PXNTABLE (_AT(pmdval_t, 1) << 2) /* v7 */ 24 #define PMD_BIT4 (_AT(pmdval_t, 1) << 4) 25 #define PMD_DOMAIN(x) (_AT(pmdval_t, (x)) << 5) 26 #define PMD_DOMAIN_MASK PMD_DOMAIN(0x0f) 27 #define PMD_PROTECTION (_AT(pmdval_t, 1) << 9) /* v5 */ 28 /* 29 * - section 30 */ 31 #define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */ 32 #define PMD_SECT_BUFFERABLE (_AT(pmdval_t, 1) << 2) 33 #define PMD_SECT_CACHEABLE (_AT(pmdval_t, 1) << 3) 34 #define PMD_SECT_XN (_AT(pmdval_t, 1) << 4) /* v6 */ 35 #define PMD_SECT_AP_WRITE (_AT(pmdval_t, 1) << 10) 36 #define PMD_SECT_AP_READ (_AT(pmdval_t, 1) << 11) 37 #define PMD_SECT_TEX(x) (_AT(pmdval_t, (x)) << 12) /* v5 */ 38 #define PMD_SECT_APX (_AT(pmdval_t, 1) << 15) /* v6 */ 39 #define PMD_SECT_S (_AT(pmdval_t, 1) << 16) /* v6 */ 40 #define PMD_SECT_nG (_AT(pmdval_t, 1) << 17) /* v6 */ 41 #define PMD_SECT_SUPER (_AT(pmdval_t, 1) << 18) /* v6 */ 42 #define PMD_SECT_AF (_AT(pmdval_t, 0)) 43 44 #define PMD_SECT_UNCACHED (_AT(pmdval_t, 0)) 45 #define PMD_SECT_BUFFERED (PMD_SECT_BUFFERABLE) 46 #define PMD_SECT_WT (PMD_SECT_CACHEABLE) 47 #define PMD_SECT_WB (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 48 #define PMD_SECT_MINICACHE (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE) 49 #define PMD_SECT_WBWA (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 50 #define PMD_SECT_CACHE_MASK (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 51 #define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2)) 52 53 /* 54 * - coarse table (not used) 55 */ 56 57 /* 58 * + Level 2 descriptor (PTE) 59 * - common 60 */ 61 #define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0) 62 #define PTE_TYPE_FAULT (_AT(pteval_t, 0) << 0) 63 #define PTE_TYPE_LARGE (_AT(pteval_t, 1) << 0) 64 #define PTE_TYPE_SMALL (_AT(pteval_t, 2) << 0) 65 #define PTE_TYPE_EXT (_AT(pteval_t, 3) << 0) /* v5 */ 66 #define PTE_BUFFERABLE (_AT(pteval_t, 1) << 2) 67 #define PTE_CACHEABLE (_AT(pteval_t, 1) << 3) 68 69 /* 70 * - extended small page/tiny page 71 */ 72 #define PTE_EXT_XN (_AT(pteval_t, 1) << 0) /* v6 */ 73 #define PTE_EXT_AP_MASK (_AT(pteval_t, 3) << 4) 74 #define PTE_EXT_AP0 (_AT(pteval_t, 1) << 4) 75 #define PTE_EXT_AP1 (_AT(pteval_t, 2) << 4) 76 #define PTE_EXT_AP_UNO_SRO (_AT(pteval_t, 0) << 4) 77 #define PTE_EXT_AP_UNO_SRW (PTE_EXT_AP0) 78 #define PTE_EXT_AP_URO_SRW (PTE_EXT_AP1) 79 #define PTE_EXT_AP_URW_SRW (PTE_EXT_AP1|PTE_EXT_AP0) 80 #define PTE_EXT_TEX(x) (_AT(pteval_t, (x)) << 6) /* v5 */ 81 #define PTE_EXT_APX (_AT(pteval_t, 1) << 9) /* v6 */ 82 #define PTE_EXT_COHERENT (_AT(pteval_t, 1) << 9) /* XScale3 */ 83 #define PTE_EXT_SHARED (_AT(pteval_t, 1) << 10) /* v6 */ 84 #define PTE_EXT_NG (_AT(pteval_t, 1) << 11) /* v6 */ 85 86 /* 87 * - small page 88 */ 89 #define PTE_SMALL_AP_MASK (_AT(pteval_t, 0xff) << 4) 90 #define PTE_SMALL_AP_UNO_SRO (_AT(pteval_t, 0x00) << 4) 91 #define PTE_SMALL_AP_UNO_SRW (_AT(pteval_t, 0x55) << 4) 92 #define PTE_SMALL_AP_URO_SRW (_AT(pteval_t, 0xaa) << 4) 93 #define PTE_SMALL_AP_URW_SRW (_AT(pteval_t, 0xff) << 4) 94 95 #define PHYS_MASK (~0UL) 96 97 #endif 98
