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b920de1b DH |
1 | /* MN10300 Cache flushing |
2 | * | |
3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public Licence | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the Licence, or (at your option) any later version. | |
10 | */ | |
11 | #ifndef _ASM_CACHEFLUSH_H | |
12 | #define _ASM_CACHEFLUSH_H | |
13 | ||
14 | #ifndef __ASSEMBLY__ | |
15 | ||
16 | /* Keep includes the same across arches. */ | |
17 | #include <linux/mm.h> | |
18 | ||
19 | /* | |
93c10d3d | 20 | * Primitive routines |
b920de1b | 21 | */ |
344af921 | 22 | #ifdef CONFIG_MN10300_CACHE_ENABLED |
0bd3eb6c AT |
23 | extern void mn10300_local_icache_inv(void); |
24 | extern void mn10300_local_icache_inv_page(unsigned long start); | |
25 | extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end); | |
26 | extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size); | |
27 | extern void mn10300_local_dcache_inv(void); | |
28 | extern void mn10300_local_dcache_inv_page(unsigned long start); | |
29 | extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end); | |
30 | extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size); | |
b920de1b | 31 | extern void mn10300_icache_inv(void); |
0bd3eb6c AT |
32 | extern void mn10300_icache_inv_page(unsigned long start); |
33 | extern void mn10300_icache_inv_range(unsigned long start, unsigned long end); | |
34 | extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size); | |
b920de1b | 35 | extern void mn10300_dcache_inv(void); |
9b287bf9 AT |
36 | extern void mn10300_dcache_inv_page(unsigned long start); |
37 | extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end); | |
38 | extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size); | |
b920de1b | 39 | #ifdef CONFIG_MN10300_CACHE_WBACK |
0bd3eb6c AT |
40 | extern void mn10300_local_dcache_flush(void); |
41 | extern void mn10300_local_dcache_flush_page(unsigned long start); | |
42 | extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end); | |
43 | extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size); | |
44 | extern void mn10300_local_dcache_flush_inv(void); | |
45 | extern void mn10300_local_dcache_flush_inv_page(unsigned long start); | |
46 | extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end); | |
47 | extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size); | |
b920de1b | 48 | extern void mn10300_dcache_flush(void); |
9b287bf9 AT |
49 | extern void mn10300_dcache_flush_page(unsigned long start); |
50 | extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end); | |
51 | extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size); | |
b920de1b | 52 | extern void mn10300_dcache_flush_inv(void); |
9b287bf9 AT |
53 | extern void mn10300_dcache_flush_inv_page(unsigned long start); |
54 | extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end); | |
55 | extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size); | |
b920de1b | 56 | #else |
0bd3eb6c AT |
57 | #define mn10300_local_dcache_flush() do {} while (0) |
58 | #define mn10300_local_dcache_flush_page(start) do {} while (0) | |
59 | #define mn10300_local_dcache_flush_range(start, end) do {} while (0) | |
60 | #define mn10300_local_dcache_flush_range2(start, size) do {} while (0) | |
61 | #define mn10300_local_dcache_flush_inv() \ | |
62 | mn10300_local_dcache_inv() | |
63 | #define mn10300_local_dcache_flush_inv_page(start) \ | |
64 | mn10300_local_dcache_inv_page(start) | |
65 | #define mn10300_local_dcache_flush_inv_range(start, end) \ | |
66 | mn10300_local_dcache_inv_range(start, end) | |
67 | #define mn10300_local_dcache_flush_inv_range2(start, size) \ | |
68 | mn10300_local_dcache_inv_range2(start, size) | |
b920de1b DH |
69 | #define mn10300_dcache_flush() do {} while (0) |
70 | #define mn10300_dcache_flush_page(start) do {} while (0) | |
71 | #define mn10300_dcache_flush_range(start, end) do {} while (0) | |
72 | #define mn10300_dcache_flush_range2(start, size) do {} while (0) | |
73 | #define mn10300_dcache_flush_inv() mn10300_dcache_inv() | |
74 | #define mn10300_dcache_flush_inv_page(start) \ | |
75 | mn10300_dcache_inv_page((start)) | |
76 | #define mn10300_dcache_flush_inv_range(start, end) \ | |
77 | mn10300_dcache_inv_range((start), (end)) | |
78 | #define mn10300_dcache_flush_inv_range2(start, size) \ | |
79 | mn10300_dcache_inv_range2((start), (size)) | |
80 | #endif /* CONFIG_MN10300_CACHE_WBACK */ | |
81 | #else | |
0bd3eb6c AT |
82 | #define mn10300_local_icache_inv() do {} while (0) |
83 | #define mn10300_local_icache_inv_page(start) do {} while (0) | |
84 | #define mn10300_local_icache_inv_range(start, end) do {} while (0) | |
85 | #define mn10300_local_icache_inv_range2(start, size) do {} while (0) | |
86 | #define mn10300_local_dcache_inv() do {} while (0) | |
87 | #define mn10300_local_dcache_inv_page(start) do {} while (0) | |
88 | #define mn10300_local_dcache_inv_range(start, end) do {} while (0) | |
89 | #define mn10300_local_dcache_inv_range2(start, size) do {} while (0) | |
90 | #define mn10300_local_dcache_flush() do {} while (0) | |
91 | #define mn10300_local_dcache_flush_inv_page(start) do {} while (0) | |
92 | #define mn10300_local_dcache_flush_inv() do {} while (0) | |
93 | #define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0) | |
94 | #define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0) | |
95 | #define mn10300_local_dcache_flush_page(start) do {} while (0) | |
96 | #define mn10300_local_dcache_flush_range(start, end) do {} while (0) | |
97 | #define mn10300_local_dcache_flush_range2(start, size) do {} while (0) | |
b920de1b | 98 | #define mn10300_icache_inv() do {} while (0) |
0bd3eb6c AT |
99 | #define mn10300_icache_inv_page(start) do {} while (0) |
100 | #define mn10300_icache_inv_range(start, end) do {} while (0) | |
101 | #define mn10300_icache_inv_range2(start, size) do {} while (0) | |
b920de1b DH |
102 | #define mn10300_dcache_inv() do {} while (0) |
103 | #define mn10300_dcache_inv_page(start) do {} while (0) | |
104 | #define mn10300_dcache_inv_range(start, end) do {} while (0) | |
105 | #define mn10300_dcache_inv_range2(start, size) do {} while (0) | |
106 | #define mn10300_dcache_flush() do {} while (0) | |
107 | #define mn10300_dcache_flush_inv_page(start) do {} while (0) | |
108 | #define mn10300_dcache_flush_inv() do {} while (0) | |
109 | #define mn10300_dcache_flush_inv_range(start, end) do {} while (0) | |
110 | #define mn10300_dcache_flush_inv_range2(start, size) do {} while (0) | |
111 | #define mn10300_dcache_flush_page(start) do {} while (0) | |
112 | #define mn10300_dcache_flush_range(start, end) do {} while (0) | |
113 | #define mn10300_dcache_flush_range2(start, size) do {} while (0) | |
344af921 | 114 | #endif /* CONFIG_MN10300_CACHE_ENABLED */ |
b920de1b DH |
115 | |
116 | /* | |
93c10d3d DH |
117 | * Virtually-indexed cache management (our cache is physically indexed) |
118 | */ | |
119 | #define flush_cache_all() do {} while (0) | |
120 | #define flush_cache_mm(mm) do {} while (0) | |
121 | #define flush_cache_dup_mm(mm) do {} while (0) | |
122 | #define flush_cache_range(mm, start, end) do {} while (0) | |
123 | #define flush_cache_page(vma, vmaddr, pfn) do {} while (0) | |
124 | #define flush_cache_vmap(start, end) do {} while (0) | |
125 | #define flush_cache_vunmap(start, end) do {} while (0) | |
126 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 | |
127 | #define flush_dcache_page(page) do {} while (0) | |
128 | #define flush_dcache_mmap_lock(mapping) do {} while (0) | |
129 | #define flush_dcache_mmap_unlock(mapping) do {} while (0) | |
130 | ||
131 | /* | |
132 | * Physically-indexed cache management | |
133 | */ | |
b478491f DH |
134 | #if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) |
135 | extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); | |
136 | extern void flush_icache_range(unsigned long start, unsigned long end); | |
137 | #elif defined(CONFIG_MN10300_CACHE_INV_ICACHE) | |
138 | static inline void flush_icache_page(struct vm_area_struct *vma, | |
139 | struct page *page) | |
140 | { | |
141 | mn10300_icache_inv_page(page_to_phys(page)); | |
142 | } | |
93c10d3d | 143 | extern void flush_icache_range(unsigned long start, unsigned long end); |
93c10d3d | 144 | #else |
93c10d3d DH |
145 | #define flush_icache_range(start, end) do {} while (0) |
146 | #define flush_icache_page(vma, pg) do {} while (0) | |
93c10d3d DH |
147 | #endif |
148 | ||
b478491f | 149 | |
93c10d3d DH |
150 | #define flush_icache_user_range(vma, pg, adr, len) \ |
151 | flush_icache_range(adr, adr + len) | |
152 | ||
153 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
154 | do { \ | |
155 | memcpy(dst, src, len); \ | |
156 | flush_icache_page(vma, page); \ | |
157 | } while (0) | |
158 | ||
159 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | |
160 | memcpy(dst, src, len) | |
161 | ||
b920de1b DH |
162 | #endif /* __ASSEMBLY__ */ |
163 | ||
164 | #endif /* _ASM_CACHEFLUSH_H */ |