Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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_IP22_SPACES_H |
| 11 | #define _ASM_MACH_IP22_SPACES_H |
| 12 | |
| 13 | #include <linux/config.h> |
| 14 | |
Ralf Baechle | 875d43e | 2005-09-03 15:56:16 -0700 | [diff] [blame^] | 15 | #ifdef CONFIG_32BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | |
| 17 | #define CAC_BASE 0x80000000 |
| 18 | #define IO_BASE 0xa0000000 |
| 19 | #define UNCAC_BASE 0xa0000000 |
| 20 | #define MAP_BASE 0xc0000000 |
| 21 | |
| 22 | /* |
| 23 | * This handles the memory map. |
| 24 | * We handle pages at KSEG0 for kernels with 32 bit address space. |
| 25 | */ |
| 26 | #define PAGE_OFFSET 0x80000000UL |
| 27 | |
| 28 | /* |
| 29 | * Memory above this physical address will be considered highmem. |
| 30 | */ |
| 31 | #ifndef HIGHMEM_START |
| 32 | #define HIGHMEM_START 0x20000000UL |
| 33 | #endif |
| 34 | |
Ralf Baechle | 875d43e | 2005-09-03 15:56:16 -0700 | [diff] [blame^] | 35 | #endif /* CONFIG_32BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Ralf Baechle | 875d43e | 2005-09-03 15:56:16 -0700 | [diff] [blame^] | 37 | #ifdef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #define PAGE_OFFSET 0xffffffff80000000UL |
| 39 | |
| 40 | #ifndef HIGHMEM_START |
| 41 | #define HIGHMEM_START (1UL << 59UL) |
| 42 | #endif |
| 43 | |
| 44 | #define CAC_BASE 0xffffffff80000000 |
| 45 | #define IO_BASE 0xffffffffa0000000 |
| 46 | #define UNCAC_BASE 0xffffffffa0000000 |
| 47 | #define MAP_BASE 0xffffffffc0000000 |
| 48 | |
| 49 | #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) |
| 50 | #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK)) |
| 51 | #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK)) |
| 52 | |
Ralf Baechle | 875d43e | 2005-09-03 15:56:16 -0700 | [diff] [blame^] | 53 | #endif /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | #endif /* __ASM_MACH_IP22_SPACES_H */ |