| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1994 - 1999, 2000, 03, 04 Ralf Baechle |
| * Copyright (C) 2000, 2002 Maciej W. Rozycki |
| * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc. |
| */ |
| #ifndef _ASM_MACH_GENERIC_SPACES_H |
| #define _ASM_MACH_GENERIC_SPACES_H |
| |
| |
| #ifdef CONFIG_32BIT |
| |
| #define CAC_BASE 0x80000000 |
| #define IO_BASE 0xa0000000 |
| #define UNCAC_BASE 0xa0000000 |
| #define MAP_BASE 0xc0000000 |
| |
| /* |
| * This handles the memory map. |
| * We handle pages at KSEG0 for kernels with 32 bit address space. |
| */ |
| #define PAGE_OFFSET 0x80000000UL |
| |
| /* |
| * Memory above this physical address will be considered highmem. |
| */ |
| #ifndef HIGHMEM_START |
| #define HIGHMEM_START 0x20000000UL |
| #endif |
| |
| #endif /* CONFIG_32BIT */ |
| |
| #ifdef CONFIG_64BIT |
| |
| /* |
| * This handles the memory map. |
| */ |
| #ifdef CONFIG_DMA_NONCOHERENT |
| #define PAGE_OFFSET 0x9800000000000000UL |
| #else |
| #define PAGE_OFFSET 0xa800000000000000UL |
| #endif |
| |
| /* |
| * Memory above this physical address will be considered highmem. |
| * Fixme: 59 bits is a fictive number and makes assumptions about processors |
| * in the distant future. Nobody will care for a few years :-) |
| */ |
| #ifndef HIGHMEM_START |
| #define HIGHMEM_START (1UL << 59UL) |
| #endif |
| |
| #ifdef CONFIG_DMA_NONCOHERENT |
| #define CAC_BASE 0x9800000000000000UL |
| #else |
| #define CAC_BASE 0xa800000000000000UL |
| #endif |
| #define IO_BASE 0x9000000000000000UL |
| #define UNCAC_BASE 0x9000000000000000UL |
| #define MAP_BASE 0xc000000000000000UL |
| |
| #define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) |
| #define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK)) |
| #define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK)) |
| |
| #endif /* CONFIG_64BIT */ |
| |
| #endif /* __ASM_MACH_GENERIC_SPACES_H */ |
