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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/mach-generic/spaces.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-mips/mach-generic/spaces.h')
-rw-r--r--include/asm-mips/mach-generic/spaces.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/asm-mips/mach-generic/spaces.h b/include/asm-mips/mach-generic/spaces.h
new file mode 100644
index 000000000000..63c0a81c7832
--- /dev/null
+++ b/include/asm-mips/mach-generic/spaces.h
@@ -0,0 +1,72 @@
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_GENERIC_SPACES_H
11#define _ASM_MACH_GENERIC_SPACES_H
12
13#include <linux/config.h>
14
15#ifdef CONFIG_MIPS32
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
35#endif /* CONFIG_MIPS32 */
36
37#ifdef CONFIG_MIPS64
38
39/*
40 * This handles the memory map.
41 */
42#ifdef CONFIG_DMA_NONCOHERENT
43#define PAGE_OFFSET 0x9800000000000000UL
44#else
45#define PAGE_OFFSET 0xa800000000000000UL
46#endif
47
48/*
49 * Memory above this physical address will be considered highmem.
50 * Fixme: 59 bits is a fictive number and makes assumptions about processors
51 * in the distant future. Nobody will care for a few years :-)
52 */
53#ifndef HIGHMEM_START
54#define HIGHMEM_START (1UL << 59UL)
55#endif
56
57#ifdef CONFIG_DMA_NONCOHERENT
58#define CAC_BASE 0x9800000000000000
59#else
60#define CAC_BASE 0xa800000000000000
61#endif
62#define IO_BASE 0x9000000000000000
63#define UNCAC_BASE 0x9000000000000000
64#define MAP_BASE 0xc000000000000000
65
66#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
67#define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK))
68#define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK))
69
70#endif /* CONFIG_MIPS64 */
71
72#endif /* __ASM_MACH_GENERIC_SPACES_H */