projects / deliverable / linux.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 |
| 1da177e4 | 23 | |
| c4612c85 FBH |
24 | #define CAC_BASE _AC(0x80000000, UL) |
| 25 | #define IO_BASE _AC(0xa0000000, UL) | |
| 26 | #define UNCAC_BASE _AC(0xa0000000, UL) | |
| 09bb9ce1 FBH |
27 | |
| 28 | #ifndef MAP_BASE | |
| c4612c85 | 29 | #define MAP_BASE _AC(0xc0000000, UL) |
| 09bb9ce1 | 30 | #endif |
| 1da177e4 LT |
31 | |
| 32 | /* | |
| 33 | * Memory above this physical address will be considered highmem. | |
| 34 | */ | |
| 35 | #ifndef HIGHMEM_START | |
| c4612c85 | 36 | #define HIGHMEM_START _AC(0x20000000, UL) |
| 1da177e4 LT |
37 | #endif |
| 38 | ||
| 875d43e7 | 39 | #endif /* CONFIG_32BIT */ |
| 1da177e4 | 40 | |
| 875d43e7 | 41 | #ifdef CONFIG_64BIT |
| 1da177e4 | 42 | |
| 09bb9ce1 | 43 | #ifndef CAC_BASE |
| 1da177e4 | 44 | #ifdef CONFIG_DMA_NONCOHERENT |
| c4612c85 | 45 | #define CAC_BASE _AC(0x9800000000000000, UL) |
| 1da177e4 | 46 | #else |
| c4612c85 | 47 | #define CAC_BASE _AC(0xa800000000000000, UL) |
| 1da177e4 | 48 | #endif |
| 09bb9ce1 FBH |
49 | #endif |
| 50 | ||
| 51 | #ifndef IO_BASE | |
| c4612c85 | 52 | #define IO_BASE _AC(0x9000000000000000, UL) |
| 09bb9ce1 FBH |
53 | #endif |
| 54 | ||
| 55 | #ifndef UNCAC_BASE | |
| c4612c85 | 56 | #define UNCAC_BASE _AC(0x9000000000000000, UL) |
| 09bb9ce1 FBH |
57 | #endif |
| 58 | ||
| 59 | #ifndef MAP_BASE | |
| c4612c85 FBH |
60 | #define MAP_BASE _AC(0xc000000000000000, UL) |
| 61 | #endif | |
| 62 | ||
| 63 | /* | |
| 64 | * Memory above this physical address will be considered highmem. | |
| 65 | * Fixme: 59 bits is a fictive number and makes assumptions about processors | |
| 66 | * in the distant future. Nobody will care for a few years :-) | |
| 67 | */ | |
| 68 | #ifndef HIGHMEM_START | |
| 69 | #define HIGHMEM_START (_AC(1, UL) << _AC(59, UL)) | |
| 09bb9ce1 | 70 | #endif |
| 1da177e4 | 71 | |
| 70342287 | 72 | #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) |
| 1da177e4 LT |
73 | #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK)) |
| 74 | #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK)) | |
| 75 | ||
| 875d43e7 | 76 | #endif /* CONFIG_64BIT */ |
| 1da177e4 | 77 | |
| c4612c85 FBH |
78 | /* |
| 79 | * This handles the memory map. | |
| 80 | */ | |
| 81 | #ifndef PAGE_OFFSET | |
| db385015 | 82 | #define PAGE_OFFSET (CAC_BASE + PHYS_OFFSET) |
| c4612c85 FBH |
83 | #endif |
| 84 | ||
| 565b60de KC |
85 | #ifndef FIXADDR_TOP |
| 86 | #define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000) | |
| 87 | #endif | |
| 88 | ||
| 1da177e4 | 89 | #endif /* __ASM_MACH_GENERIC_SPACES_H */ |