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17f57211 CM |
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 | */ | |
442e70c0 CM |
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) | |
1d4d3715 | 23 | #define PMD_PXNTABLE (_AT(pmdval_t, 1) << 2) /* v7 */ |
442e70c0 CM |
24 | #define PMD_BIT4 (_AT(pmdval_t, 1) << 4) |
25 | #define PMD_DOMAIN(x) (_AT(pmdval_t, (x)) << 5) | |
a02d8dfd | 26 | #define PMD_DOMAIN_MASK PMD_DOMAIN(0x0f) |
442e70c0 | 27 | #define PMD_PROTECTION (_AT(pmdval_t, 1) << 9) /* v5 */ |
17f57211 CM |
28 | /* |
29 | * - section | |
30 | */ | |
1d4d3715 | 31 | #define PMD_SECT_PXN (_AT(pmdval_t, 1) << 0) /* v7 */ |
442e70c0 CM |
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)) | |
17f57211 | 43 | |
442e70c0 | 44 | #define PMD_SECT_UNCACHED (_AT(pmdval_t, 0)) |
17f57211 CM |
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_NONSHARED_DEV (PMD_SECT_TEX(2)) | |
51 | ||
52 | /* | |
53 | * - coarse table (not used) | |
54 | */ | |
55 | ||
56 | /* | |
57 | * + Level 2 descriptor (PTE) | |
58 | * - common | |
59 | */ | |
442e70c0 CM |
60 | #define PTE_TYPE_MASK (_AT(pteval_t, 3) << 0) |
61 | #define PTE_TYPE_FAULT (_AT(pteval_t, 0) << 0) | |
62 | #define PTE_TYPE_LARGE (_AT(pteval_t, 1) << 0) | |
63 | #define PTE_TYPE_SMALL (_AT(pteval_t, 2) << 0) | |
64 | #define PTE_TYPE_EXT (_AT(pteval_t, 3) << 0) /* v5 */ | |
65 | #define PTE_BUFFERABLE (_AT(pteval_t, 1) << 2) | |
66 | #define PTE_CACHEABLE (_AT(pteval_t, 1) << 3) | |
17f57211 CM |
67 | |
68 | /* | |
69 | * - extended small page/tiny page | |
70 | */ | |
442e70c0 CM |
71 | #define PTE_EXT_XN (_AT(pteval_t, 1) << 0) /* v6 */ |
72 | #define PTE_EXT_AP_MASK (_AT(pteval_t, 3) << 4) | |
73 | #define PTE_EXT_AP0 (_AT(pteval_t, 1) << 4) | |
74 | #define PTE_EXT_AP1 (_AT(pteval_t, 2) << 4) | |
75 | #define PTE_EXT_AP_UNO_SRO (_AT(pteval_t, 0) << 4) | |
17f57211 CM |
76 | #define PTE_EXT_AP_UNO_SRW (PTE_EXT_AP0) |
77 | #define PTE_EXT_AP_URO_SRW (PTE_EXT_AP1) | |
78 | #define PTE_EXT_AP_URW_SRW (PTE_EXT_AP1|PTE_EXT_AP0) | |
442e70c0 CM |
79 | #define PTE_EXT_TEX(x) (_AT(pteval_t, (x)) << 6) /* v5 */ |
80 | #define PTE_EXT_APX (_AT(pteval_t, 1) << 9) /* v6 */ | |
81 | #define PTE_EXT_COHERENT (_AT(pteval_t, 1) << 9) /* XScale3 */ | |
82 | #define PTE_EXT_SHARED (_AT(pteval_t, 1) << 10) /* v6 */ | |
83 | #define PTE_EXT_NG (_AT(pteval_t, 1) << 11) /* v6 */ | |
17f57211 CM |
84 | |
85 | /* | |
86 | * - small page | |
87 | */ | |
442e70c0 CM |
88 | #define PTE_SMALL_AP_MASK (_AT(pteval_t, 0xff) << 4) |
89 | #define PTE_SMALL_AP_UNO_SRO (_AT(pteval_t, 0x00) << 4) | |
90 | #define PTE_SMALL_AP_UNO_SRW (_AT(pteval_t, 0x55) << 4) | |
91 | #define PTE_SMALL_AP_URO_SRW (_AT(pteval_t, 0xaa) << 4) | |
92 | #define PTE_SMALL_AP_URW_SRW (_AT(pteval_t, 0xff) << 4) | |
17f57211 | 93 | |
d7c5d0dc CM |
94 | #define PHYS_MASK (~0UL) |
95 | ||
17f57211 | 96 | #endif |