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) 1996, 99 Ralf Baechle
7 * Copyright (C) 2000, 2002  Maciej W. Rozycki
8 * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
9 */
10#ifndef _ASM_MACH_IP27_SPACES_H
11#define _ASM_MACH_IP27_SPACES_H
12
13#include <linux/const.h>
14
15/*
16 * IP27 uses the R10000's uncached attribute feature.  Attribute 3 selects
17 * uncached memory addressing. Hide the definitions on 32-bit compilation
18 * of the compat-vdso code.
19 */
20#ifdef CONFIG_64BIT
21#define HSPEC_BASE		_AC(0x9000000000000000, UL)
22#define IO_BASE			_AC(0x9200000000000000, UL)
23#define MSPEC_BASE		_AC(0x9400000000000000, UL)
24#define UNCAC_BASE		_AC(0x9600000000000000, UL)
25#define CAC_BASE		_AC(0xa800000000000000, UL)
26#endif
27
28#define TO_MSPEC(x)		(MSPEC_BASE | ((x) & TO_PHYS_MASK))
29#define TO_HSPEC(x)		(HSPEC_BASE | ((x) & TO_PHYS_MASK))
30
31#define HIGHMEM_START		(~0UL)
32
33#include <asm/mach-generic/spaces.h>
34
35#endif /* _ASM_MACH_IP27_SPACES_H */
36