1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/include/asm/pgtable-2level-hwdef.h 4 * 5 * Copyright (C) 1995-2002 Russell King 6 */ 7 #ifndef _ASM_PGTABLE_2LEVEL_HWDEF_H 8 #define _ASM_PGTABLE_2LEVEL_HWDEF_H 9 10 /* 11 * Hardware page table definitions. 12 * 13 * + Level 1 descriptor (PMD) 14 * - common 15 */ 16 #define PMD_TYPE_MASK (_AT(pmdval_t, 3) << 0) 17 #define PMD_TYPE_FAULT (_AT(pmdval_t, 0) << 0) 18 #define PMD_TYPE_TABLE (_AT(pmdval_t, 1) << 0) 19 #define PMD_TYPE_SECT (_AT(pmdval_t, 2) << 0) 20 #define PMD_PXNTABLE (_AT(pmdval_t, 1) << 2) /* v7 */ 21 #define PMD_BIT4 (_AT(pmdval_t, 1) << 4) 22 #define PMD_DOMAIN(x) (_AT(pmdval_t, (x)) << 5) 23 #define PMD_DOMAIN_MASK PMD_DOMAIN(0x0f) 24 #define PMD_PROTECTION (_AT(pmdval_t, 1) << 9) /* v5 */ 25 /* 26 * - section 27 */ 28 #define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */ 29 #define PMD_SECT_BUFFERABLE (_AT(pmdval_t, 1) << 2) 30 #define PMD_SECT_CACHEABLE (_AT(pmdval_t, 1) << 3) 31 #define PMD_SECT_XN (_AT(pmdval_t, 1) << 4) /* v6 */ 32 #define PMD_SECT_AP_WRITE (_AT(pmdval_t, 1) << 10) 33 #define PMD_SECT_AP_READ (_AT(pmdval_t, 1) << 11) 34 #define PMD_SECT_TEX(x) (_AT(pmdval_t, (x)) << 12) /* v5 */ 35 #define PMD_SECT_APX (_AT(pmdval_t, 1) << 15) /* v6 */ 36 #define PMD_SECT_S (_AT(pmdval_t, 1) << 16) /* v6 */ 37 #define PMD_SECT_nG (_AT(pmdval_t, 1) << 17) /* v6 */ 38 #define PMD_SECT_SUPER (_AT(pmdval_t, 1) << 18) /* v6 */ 39 #define PMD_SECT_AF (_AT(pmdval_t, 0)) 40 41 #define PMD_SECT_UNCACHED (_AT(pmdval_t, 0)) 42 #define PMD_SECT_BUFFERED (PMD_SECT_BUFFERABLE) 43 #define PMD_SECT_WT (PMD_SECT_CACHEABLE) 44 #define PMD_SECT_WB (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 45 #define PMD_SECT_MINICACHE (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE) 46 #define PMD_SECT_WBWA (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 47 #define PMD_SECT_CACHE_MASK (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE) 48 #define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2)) 49 50 /* 51 * - coarse table (not used) 52 */ 53 54 /* 55 * + Level 2 descriptor (PTE) 56 * - common 57 */ 58 #define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0) 59 #define PTE_TYPE_FAULT (_AT(pteval_t, 0) << 0) 60 #define PTE_TYPE_LARGE (_AT(pteval_t, 1) << 0) 61 #define PTE_TYPE_SMALL (_AT(pteval_t, 2) << 0) 62 #define PTE_TYPE_EXT (_AT(pteval_t, 3) << 0) /* v5 */ 63 #define PTE_BUFFERABLE (_AT(pteval_t, 1) << 2) 64 #define PTE_CACHEABLE (_AT(pteval_t, 1) << 3) 65 66 /* 67 * - extended small page/tiny page 68 */ 69 #define PTE_EXT_XN (_AT(pteval_t, 1) << 0) /* v6 */ 70 #define PTE_EXT_AP_MASK (_AT(pteval_t, 3) << 4) 71 #define PTE_EXT_AP0 (_AT(pteval_t, 1) << 4) 72 #define PTE_EXT_AP1 (_AT(pteval_t, 2) << 4) 73 #define PTE_EXT_AP_UNO_SRO (_AT(pteval_t, 0) << 4) 74 #define PTE_EXT_AP_UNO_SRW (PTE_EXT_AP0) 75 #define PTE_EXT_AP_URO_SRW (PTE_EXT_AP1) 76 #define PTE_EXT_AP_URW_SRW (PTE_EXT_AP1|PTE_EXT_AP0) 77 #define PTE_EXT_TEX(x) (_AT(pteval_t, (x)) << 6) /* v5 */ 78 #define PTE_EXT_APX (_AT(pteval_t, 1) << 9) /* v6 */ 79 #define PTE_EXT_COHERENT (_AT(pteval_t, 1) << 9) /* XScale3 */ 80 #define PTE_EXT_SHARED (_AT(pteval_t, 1) << 10) /* v6 */ 81 #define PTE_EXT_NG (_AT(pteval_t, 1) << 11) /* v6 */ 82 83 /* 84 * - small page 85 */ 86 #define PTE_SMALL_AP_MASK (_AT(pteval_t, 0xff) << 4) 87 #define PTE_SMALL_AP_UNO_SRO (_AT(pteval_t, 0x00) << 4) 88 #define PTE_SMALL_AP_UNO_SRW (_AT(pteval_t, 0x55) << 4) 89 #define PTE_SMALL_AP_URO_SRW (_AT(pteval_t, 0xaa) << 4) 90 #define PTE_SMALL_AP_URW_SRW (_AT(pteval_t, 0xff) << 4) 91 92 #define PHYS_MASK (~0UL) 93 94 #endif 95