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-rw-r--r--include/asm-mips/mach-generic/spaces.h65
1 files changed, 27 insertions, 38 deletions
diff --git a/include/asm-mips/mach-generic/spaces.h b/include/asm-mips/mach-generic/spaces.h
index 9a3c521047b8..d901e084a479 100644
--- a/include/asm-mips/mach-generic/spaces.h
+++ b/include/asm-mips/mach-generic/spaces.h
@@ -10,74 +10,56 @@
10#ifndef _ASM_MACH_GENERIC_SPACES_H 10#ifndef _ASM_MACH_GENERIC_SPACES_H
11#define _ASM_MACH_GENERIC_SPACES_H 11#define _ASM_MACH_GENERIC_SPACES_H
12 12
13#include <linux/const.h>
13 14
14#ifdef CONFIG_32BIT 15#ifdef CONFIG_32BIT
15 16
16#define CAC_BASE 0x80000000 17#define CAC_BASE _AC(0x80000000, UL)
17#define IO_BASE 0xa0000000 18#define IO_BASE _AC(0xa0000000, UL)
18#define UNCAC_BASE 0xa0000000 19#define UNCAC_BASE _AC(0xa0000000, UL)
19 20
20#ifndef MAP_BASE 21#ifndef MAP_BASE
21#define MAP_BASE 0xc0000000 22#define MAP_BASE _AC(0xc0000000, UL)
22#endif
23
24/*
25 * This handles the memory map.
26 * We handle pages at KSEG0 for kernels with 32 bit address space.
27 */
28#ifndef PAGE_OFFSET
29#define PAGE_OFFSET 0x80000000UL
30#endif 23#endif
31 24
32/* 25/*
33 * Memory above this physical address will be considered highmem. 26 * Memory above this physical address will be considered highmem.
34 */ 27 */
35#ifndef HIGHMEM_START 28#ifndef HIGHMEM_START
36#define HIGHMEM_START 0x20000000UL 29#define HIGHMEM_START _AC(0x20000000, UL)
37#endif 30#endif
38 31
39#endif /* CONFIG_32BIT */ 32#endif /* CONFIG_32BIT */
40 33
41#ifdef CONFIG_64BIT 34#ifdef CONFIG_64BIT
42 35
43/*
44 * This handles the memory map.
45 */
46#ifndef PAGE_OFFSET
47#ifdef CONFIG_DMA_NONCOHERENT
48#define PAGE_OFFSET 0x9800000000000000UL
49#else
50#define PAGE_OFFSET 0xa800000000000000UL
51#endif
52#endif
53
54/*
55 * Memory above this physical address will be considered highmem.
56 * Fixme: 59 bits is a fictive number and makes assumptions about processors
57 * in the distant future. Nobody will care for a few years :-)
58 */
59#ifndef HIGHMEM_START
60#define HIGHMEM_START (1UL << 59UL)
61#endif
62
63#ifndef CAC_BASE 36#ifndef CAC_BASE
64#ifdef CONFIG_DMA_NONCOHERENT 37#ifdef CONFIG_DMA_NONCOHERENT
65#define CAC_BASE 0x9800000000000000UL 38#define CAC_BASE _AC(0x9800000000000000, UL)
66#else 39#else
67#define CAC_BASE 0xa800000000000000UL 40#define CAC_BASE _AC(0xa800000000000000, UL)
68#endif 41#endif
69#endif 42#endif
70 43
71#ifndef IO_BASE 44#ifndef IO_BASE
72#define IO_BASE 0x9000000000000000UL 45#define IO_BASE _AC(0x9000000000000000, UL)
73#endif 46#endif
74 47
75#ifndef UNCAC_BASE 48#ifndef UNCAC_BASE
76#define UNCAC_BASE 0x9000000000000000UL 49#define UNCAC_BASE _AC(0x9000000000000000, UL)
77#endif 50#endif
78 51
79#ifndef MAP_BASE 52#ifndef MAP_BASE
80#define MAP_BASE 0xc000000000000000UL 53#define MAP_BASE _AC(0xc000000000000000, UL)
54#endif
55
56/*
57 * Memory above this physical address will be considered highmem.
58 * Fixme: 59 bits is a fictive number and makes assumptions about processors
59 * in the distant future. Nobody will care for a few years :-)
60 */
61#ifndef HIGHMEM_START
62#define HIGHMEM_START (_AC(1, UL) << _AC(59, UL))
81#endif 63#endif
82 64
83#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK)) 65#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
@@ -86,4 +68,11 @@
86 68
87#endif /* CONFIG_64BIT */ 69#endif /* CONFIG_64BIT */
88 70
71/*
72 * This handles the memory map.
73 */
74#ifndef PAGE_OFFSET
75#define PAGE_OFFSET CAC_BASE
76#endif
77
89#endif /* __ASM_MACH_GENERIC_SPACES_H */ 78#endif /* __ASM_MACH_GENERIC_SPACES_H */