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_CACHE_B15_RAC) 121 # define MULTI_CACHE 1 122 #endif 123 124 #if defined(CONFIG_CPU_V7M) 125 # define MULTI_CACHE 1 126 #endif 127 128 #if !defined(_CACHE) && !defined(MULTI_CACHE) 129 #error Unknown cache maintenance model 130 #endif 131 132 #ifndef __ASSEMBLER__ 133 static inline void nop_flush_icache_all(void) { } 134 static inline void nop_flush_kern_cache_all(void) { } 135 static inline void nop_flush_kern_cache_louis(void) { } 136 static inline void nop_flush_user_cache_all(void) { } 137 static inline void nop_flush_user_cache_range(unsigned long a, 138 unsigned long b, unsigned int c) { } 139 140 static inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { } 141 static inline int nop_coherent_user_range(unsigned long a, 142 unsigned long b) { return 0; } 143 static inline void nop_flush_kern_dcache_area(void *a, size_t s) { } 144 145 static inline void nop_dma_flush_range(const void *a, const void *b) { } 146 147 static inline void nop_dma_map_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