1 /*
2 * arch/arm/include/asm/glue-cache.h
3 *
4 * Copyright (C) 1999-2002 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10 #ifndef ASM_GLUE_CACHE_H
11 #define ASM_GLUE_CACHE_H
12
13 #include <asm/glue.h>
14
15 /*
16 * Cache Model
17 * ===========
18 */
19 #undef _CACHE
20 #undef MULTI_CACHE
21
22 #if defined(CONFIG_CPU_CACHE_V4)
23 # ifdef _CACHE
24 # define MULTI_CACHE 1
25 # else
26 # define _CACHE v4
27 # endif
28 #endif
29
30 #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \
31 defined(CONFIG_CPU_ARM925T) || defined(CONFIG_CPU_ARM1020) || \
32 defined(CONFIG_CPU_ARM1026)
33 # define MULTI_CACHE 1
34 #endif
35
36 #if defined(CONFIG_CPU_FA526)
37 # ifdef _CACHE
38 # define MULTI_CACHE 1
39 # else
40 # define _CACHE fa
41 # endif
42 #endif
43
44 #if defined(CONFIG_CPU_ARM926T)
45 # ifdef _CACHE
46 # define MULTI_CACHE 1
47 # else
48 # define _CACHE arm926
49 # endif
50 #endif
51
52 #if defined(CONFIG_CPU_ARM940T)
53 # ifdef _CACHE
54 # define MULTI_CACHE 1
55 # else
56 # define _CACHE arm940
57 # endif
58 #endif
59
60 #if defined(CONFIG_CPU_ARM946E)
61 # ifdef _CACHE
62 # define MULTI_CACHE 1
63 # else
64 # define _CACHE arm946
65 # endif
66 #endif
67
68 #if defined(CONFIG_CPU_CACHE_V4WB)
69 # ifdef _CACHE
70 # define MULTI_CACHE 1
71 # else
72 # define _CACHE v4wb
73 # endif
74 #endif
75
76 #if defined(CONFIG_CPU_XSCALE)
77 # ifdef _CACHE
78 # define MULTI_CACHE 1
79 # else
80 # define _CACHE xscale
81 # endif
82 #endif
83
84 #if defined(CONFIG_CPU_XSC3)
85 # ifdef _CACHE
86 # define MULTI_CACHE 1
87 # else
88 # define _CACHE xsc3
89 # endif
90 #endif
91
92 #if defined(CONFIG_CPU_MOHAWK)
93 # ifdef _CACHE
94 # define MULTI_CACHE 1
95 # else
96 # define _CACHE mohawk
97 # endif
98 #endif
99
100 #if defined(CONFIG_CPU_FEROCEON)
101 # define MULTI_CACHE 1
102 #endif
103
104 #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
105 # ifdef _CACHE
106 # define MULTI_CACHE 1
107 # else
108 # define _CACHE v6
109 # endif
110 #endif
111
112 #if defined(CONFIG_CPU_V7)
113 # ifdef _CACHE
114 # define MULTI_CACHE 1
115 # else
116 # define _CACHE v7
117 # endif
118 #endif
119
120 #if defined(CONFIG_CPU_V7M)
121 # ifdef _CACHE
122 # define MULTI_CACHE 1
123 # else
124 # define _CACHE nop
125 # endif
126 #endif
127
128 #if !defined(_CACHE) && !defined(MULTI_CACHE)
129 #error Unknown cache maintenance model
130 #endif
131
132 #ifndef __ASSEMBLER__
nop_flush_icache_all(void)133 static inline void nop_flush_icache_all(void) { }
nop_flush_kern_cache_all(void)134 static inline void nop_flush_kern_cache_all(void) { }
nop_flush_kern_cache_louis(void)135 static inline void nop_flush_kern_cache_louis(void) { }
nop_flush_user_cache_all(void)136 static inline void nop_flush_user_cache_all(void) { }
nop_flush_user_cache_range(unsigned long a,unsigned long b,unsigned int c)137 static inline void nop_flush_user_cache_range(unsigned long a,
138 unsigned long b, unsigned int c) { }
139
nop_coherent_kern_range(unsigned long a,unsigned long b)140 static inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { }
nop_coherent_user_range(unsigned long a,unsigned long b)141 static inline int nop_coherent_user_range(unsigned long a,
142 unsigned long b) { return 0; }
nop_flush_kern_dcache_area(void * a,size_t s)143 static inline void nop_flush_kern_dcache_area(void *a, size_t s) { }
144
nop_dma_flush_range(const void * a,const void * b)145 static inline void nop_dma_flush_range(const void *a, const void *b) { }
146
nop_dma_map_area(const void * s,size_t l,int f)147 static inline void nop_dma_map_area(const void *s, size_t l, int f) { }
nop_dma_unmap_area(const void * s,size_t l,int f)148 static inline void nop_dma_unmap_area(const void *s, size_t l, int f) { }
149 #endif
150
151 #ifndef MULTI_CACHE
152 #define __cpuc_flush_icache_all __glue(_CACHE,_flush_icache_all)
153 #define __cpuc_flush_kern_all __glue(_CACHE,_flush_kern_cache_all)
154 #define __cpuc_flush_kern_louis __glue(_CACHE,_flush_kern_cache_louis)
155 #define __cpuc_flush_user_all __glue(_CACHE,_flush_user_cache_all)
156 #define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range)
157 #define __cpuc_coherent_kern_range __glue(_CACHE,_coherent_kern_range)
158 #define __cpuc_coherent_user_range __glue(_CACHE,_coherent_user_range)
159 #define __cpuc_flush_dcache_area __glue(_CACHE,_flush_kern_dcache_area)
160
161 #define dmac_flush_range __glue(_CACHE,_dma_flush_range)
162 #endif
163
164 #endif
165