projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle | |
| 7 | * Copyright (C) 2000, 2002 Maciej W. Rozycki | |
| 8 | * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc. | |
| 9 | */ | |
| 10 | #ifndef _ASM_MACH_GENERIC_SPACES_H | |
| 11 | #define _ASM_MACH_GENERIC_SPACES_H | |
| 12 | ||
| c4612c85 | 13 | #include <linux/const.h> |
| 1da177e4 | 14 | |
| 41b0483e FBH |
15 | /* |
| 16 | * This gives the physical RAM offset. | |
| 17 | */ | |
| 18 | #ifndef PHYS_OFFSET | |
| 19 | #define PHYS_OFFSET _AC(0, UL) | |
| 20 | #endif | |
| 21 | ||
| 875d43e7 | 22 | #ifdef CONFIG_32BIT |
| 9843b030 SL |
23 | #ifdef CONFIG_KVM_GUEST |
| 24 | #define CAC_BASE _AC(0x40000000, UL) | |
| 25 | #else | |
| c4612c85 | 26 | #define CAC_BASE _AC(0x80000000, UL) |
| 9843b030 | 27 | #endif |
| 7ad18dd0 | 28 | #ifndef IO_BASE |
| c4612c85 | 29 | #define IO_BASE _AC(0xa0000000, UL) |
| 7ad18dd0 SH |
30 | #endif |
| 31 | #ifndef UNCAC_BASE | |
| c4612c85 | 32 | #define UNCAC_BASE _AC(0xa0000000, UL) |
| 7ad18dd0 | 33 | #endif |
| 09bb9ce1 FBH |
34 | |
| 35 | #ifndef MAP_BASE | |
| 9843b030 SL |
36 | #ifdef CONFIG_KVM_GUEST |
| 37 | #define MAP_BASE _AC(0x60000000, UL) | |
| 38 | #else | |
| c4612c85 | 39 | #define MAP_BASE _AC(0xc0000000, UL) |
| 09bb9ce1 | 40 | #endif |
| 9843b030 | 41 | #endif |
| 1da177e4 LT |
42 | |
| 43 | /* | |
| 44 | * Memory above this physical address will be considered highmem. | |
| 45 | */ | |
| 46 | #ifndef HIGHMEM_START | |
| c4612c85 | 47 | #define HIGHMEM_START _AC(0x20000000, UL) |
| 1da177e4 LT |
48 | #endif |
| 49 | ||
| 875d43e7 | 50 | #endif /* CONFIG_32BIT */ |
| 1da177e4 | 51 | |
| 875d43e7 | 52 | #ifdef CONFIG_64BIT |
| 1da177e4 | 53 | |
| 09bb9ce1 | 54 | #ifndef CAC_BASE |
| 1da177e4 | 55 | #ifdef CONFIG_DMA_NONCOHERENT |
| c4612c85 | 56 | #define CAC_BASE _AC(0x9800000000000000, UL) |
| 1da177e4 | 57 | #else |
| c4612c85 | 58 | #define CAC_BASE _AC(0xa800000000000000, UL) |
| 1da177e4 | 59 | #endif |
| 09bb9ce1 FBH |
60 | #endif |
| 61 | ||
| 62 | #ifndef IO_BASE | |
| c4612c85 | 63 | #define IO_BASE _AC(0x9000000000000000, UL) |
| 09bb9ce1 FBH |
64 | #endif |
| 65 | ||
| 66 | #ifndef UNCAC_BASE | |
| c4612c85 | 67 | #define UNCAC_BASE _AC(0x9000000000000000, UL) |
| 09bb9ce1 FBH |
68 | #endif |
| 69 | ||
| 70 | #ifndef MAP_BASE | |
| c4612c85 FBH |
71 | #define MAP_BASE _AC(0xc000000000000000, UL) |
| 72 | #endif | |
| 73 | ||
| 74 | /* | |
| 75 | * Memory above this physical address will be considered highmem. | |
| 76 | * Fixme: 59 bits is a fictive number and makes assumptions about processors | |
| 77 | * in the distant future. Nobody will care for a few years :-) | |
| 78 | */ | |
| 79 | #ifndef HIGHMEM_START | |
| 80 | #define HIGHMEM_START (_AC(1, UL) << _AC(59, UL)) | |
| 09bb9ce1 | 81 | #endif |
| 1da177e4 | 82 | |
| 70342287 | 83 | #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) |
| 1da177e4 LT |
84 | #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK)) |
| 85 | #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK)) | |
| 86 | ||
| 875d43e7 | 87 | #endif /* CONFIG_64BIT */ |
| 1da177e4 | 88 | |
| c4612c85 FBH |
89 | /* |
| 90 | * This handles the memory map. | |
| 91 | */ | |
| 92 | #ifndef PAGE_OFFSET | |
| db385015 | 93 | #define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET) |
| c4612c85 FBH |
94 | #endif |
| 95 | ||
| 565b60de | 96 | #ifndef FIXADDR_TOP |
| 8e748c8d JH |
97 | #ifdef CONFIG_KVM_GUEST |
| 98 | #define FIXADDR_TOP ((unsigned long)(long)(int)0x7ffe0000) | |
| 99 | #else | |
| 565b60de KC |
100 | #define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000) |
| 101 | #endif | |
| 8e748c8d | 102 | #endif |
| 565b60de | 103 | |
| 1da177e4 | 104 | #endif /* __ASM_MACH_GENERIC_SPACES_H */ |