diff options
Diffstat (limited to 'include/asm-mips/mach-ip27/spaces.h')
| -rw-r--r-- | include/asm-mips/mach-ip27/spaces.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-mips/mach-ip27/spaces.h b/include/asm-mips/mach-ip27/spaces.h new file mode 100644 index 000000000000..e3b3fe32eeb1 --- /dev/null +++ b/include/asm-mips/mach-ip27/spaces.h @@ -0,0 +1,34 @@ +/* + * 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) 1996, 99 Ralf Baechle + * Copyright (C) 2000, 2002 Maciej W. Rozycki + * Copyright (C) 1990, 1999 by Silicon Graphics, Inc. + */ +#ifndef _ASM_MACH_IP27_SPACES_H +#define _ASM_MACH_IP27_SPACES_H + +/* + * IP27 uses the R10000's uncached attribute feature. Attribute 3 selects + * uncached memory addressing. + */ +#define CAC_BASE 0xa800000000000000 + +#define HSPEC_BASE 0x9000000000000000 +#define IO_BASE 0x9200000000000000 +#define MSPEC_BASE 0x9400000000000000 +#define UNCAC_BASE 0x9600000000000000 + +#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)) +#define TO_MSPEC(x) (MSPEC_BASE | ((x) & TO_PHYS_MASK)) +#define TO_HSPEC(x) (HSPEC_BASE | ((x) & TO_PHYS_MASK)) + +#define PAGE_OFFSET CAC_BASE + +#define HIGHMEM_START (~0UL) + +#endif /* _ASM_MACH_IP27_SPACES_H */ |