Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / arch / arm / include / asm / pgtable-2level-hwdef.h
blob3f82e9da7cec03604059bcdcddb8217635138065
1 /*
2 * arch/arm/include/asm/pgtable-2level-hwdef.h
4 * Copyright (C) 1995-2002 Russell King
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
14 * Hardware page table definitions.
16 * + Level 1 descriptor (PMD)
17 * - common
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 */
29 * - section
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))
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))
54 * - coarse table (not used)
58 * + Level 2 descriptor (PTE)
59 * - common
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)
70 * - extended small page/tiny page
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 */
87 * - small page
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)
95 #define PHYS_MASK (~0UL)
97 #endif