diff options
Diffstat (limited to 'include/asm-mips/mach-ip22/spaces.h')
| -rw-r--r-- | include/asm-mips/mach-ip22/spaces.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/asm-mips/mach-ip22/spaces.h b/include/asm-mips/mach-ip22/spaces.h new file mode 100644 index 000000000000..30d42fcafe3d --- /dev/null +++ b/include/asm-mips/mach-ip22/spaces.h @@ -0,0 +1,55 @@ +/* + * 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_IP22_SPACES_H +#define _ASM_MACH_IP22_SPACES_H + +#include <linux/config.h> + +#ifdef CONFIG_MIPS32 + +#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_MIPS32 */ + +#ifdef CONFIG_MIPS64 +#define PAGE_OFFSET 0xffffffff80000000UL + +#ifndef HIGHMEM_START +#define HIGHMEM_START (1UL << 59UL) +#endif + +#define CAC_BASE 0xffffffff80000000 +#define IO_BASE 0xffffffffa0000000 +#define UNCAC_BASE 0xffffffffa0000000 +#define MAP_BASE 0xffffffffc0000000 + +#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_MIPS64 */ + +#endif /* __ASM_MACH_IP22_SPACES_H */ |