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8 #ifndef _SPARC_PAGE_H
9 #define _SPARC_PAGE_H
10
11 #include <asm/head.h>
12
13 #define PAGE_SHIFT 12
14 #define PAGE_OFFSET KERNBASE
15 #define PAGE_SIZE (1 << PAGE_SHIFT)
16 #define PAGE_MASK (~(PAGE_SIZE-1))
17
18 #ifdef __KERNEL__
19 #ifndef __ASSEMBLY__
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27
28
29 struct sparc_phys_banks {
30 unsigned long base_addr;
31 unsigned long num_bytes;
32 };
33
34 #define SPARC_PHYS_BANKS 32
35
36 extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
37
38
39 struct cache_palias {
40 unsigned long vaddr;
41 int context;
42 };
43
44 extern struct cache_palias *sparc_aliases;
45
46
47
48
49
50 #ifdef STRICT_MM_TYPECHECKS
51
52
53
54 typedef struct { unsigned long pte; } pte_t;
55 typedef struct { unsigned long iopte; } iopte_t;
56 typedef struct { unsigned long pmd; } pmd_t;
57 typedef struct { unsigned long pgd; } pgd_t;
58 typedef struct { unsigned long ctxd; } ctxd_t;
59 typedef struct { unsigned long pgprot; } pgprot_t;
60 typedef struct { unsigned long iopgprot; } iopgprot_t;
61
62 #define pte_val(x) ((x).pte)
63 #define iopte_val(x) ((x).iopte)
64 #define pmd_val(x) ((x).pmd)
65 #define pgd_val(x) ((x).pgd)
66 #define ctxd_val(x) ((x).ctxd)
67 #define pgprot_val(x) ((x).pgprot)
68 #define iopgprot_val(x) ((x).iopgprot)
69
70 #define __pte(x) ((pte_t) { (x) } )
71 #define __iopte(x) ((iopte_t) { (x) } )
72 #define __pmd(x) ((pmd_t) { (x) } )
73 #define __pgd(x) ((pgd_t) { (x) } )
74 #define __ctxd(x) ((ctxd_t) { (x) } )
75 #define __pgprot(x) ((pgprot_t) { (x) } )
76 #define __iopgprot(x) ((iopgprot_t) { (x) } )
77
78 #else
79
80
81
82 typedef unsigned long pte_t;
83 typedef unsigned long iopte_t;
84 typedef unsigned long pmd_t;
85 typedef unsigned long pgd_t;
86 typedef unsigned long ctxd_t;
87 typedef unsigned long pgprot_t;
88 typedef unsigned long iopgprot_t;
89
90 #define pte_val(x) (x)
91 #define iopte_val(x) (x)
92 #define pmd_val(x) (x)
93 #define pgd_val(x) (x)
94 #define ctxd_val(x) (x)
95 #define pgprot_val(x) (x)
96 #define iopgprot_val(x) (x)
97
98 #define __pte(x) (x)
99 #define __iopte(x) (x)
100 #define __pmd(x) (x)
101 #define __pgd(x) (x)
102 #define __ctxd(x) (x)
103 #define __pgprot(x) (x)
104 #define __iopgprot(x) (x)
105
106 #endif
107
108
109 #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
110
111
112
113
114 #define MAP_NR(addr) ((((unsigned long) (addr)) - PAGE_OFFSET) >> PAGE_SHIFT)
115
116 #endif
117
118 #endif
119
120 #endif