root/arch/arm/include/asm/glue-cache.h

INCLUDED FROM

DEFINITIONS

1. nop_flush_icache_all
2. nop_flush_kern_cache_all
3. nop_flush_kern_cache_louis
4. nop_flush_user_cache_all
5. nop_flush_user_cache_range
6. nop_coherent_kern_range
7. nop_coherent_user_range
8. nop_flush_kern_dcache_area
9. nop_dma_flush_range
10. nop_dma_map_area
11. nop_dma_unmap_area

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  arch/arm/include/asm/glue-cache.h
   4  *
   5  *  Copyright (C) 1999-2002 Russell King
   6  */
   7 #ifndef ASM_GLUE_CACHE_H
   8 #define ASM_GLUE_CACHE_H
   9 
  10 #include <asm/glue.h>
  11 
  12 /*
  13  *      Cache Model
  14  *      ===========
  15  */
  16 #undef _CACHE
  17 #undef MULTI_CACHE
  18 
  19 #if defined(CONFIG_CPU_CACHE_V4)
  20 # ifdef _CACHE
  21 #  define MULTI_CACHE 1
  22 # else
  23 #  define _CACHE v4
  24 # endif
  25 #endif
  26 
  27 #if defined(CONFIG_CPU_ARM920T) || defined(CONFIG_CPU_ARM922T) || \
  28     defined(CONFIG_CPU_ARM925T) || defined(CONFIG_CPU_ARM1020) || \
  29     defined(CONFIG_CPU_ARM1026)
  30 # define MULTI_CACHE 1
  31 #endif
  32 
  33 #if defined(CONFIG_CPU_FA526)
  34 # ifdef _CACHE
  35 #  define MULTI_CACHE 1
  36 # else
  37 #  define _CACHE fa
  38 # endif
  39 #endif
  40 
  41 #if defined(CONFIG_CPU_ARM926T)
  42 # ifdef _CACHE
  43 #  define MULTI_CACHE 1
  44 # else
  45 #  define _CACHE arm926
  46 # endif
  47 #endif
  48 
  49 #if defined(CONFIG_CPU_ARM940T)
  50 # ifdef _CACHE
  51 #  define MULTI_CACHE 1
  52 # else
  53 #  define _CACHE arm940
  54 # endif
  55 #endif
  56 
  57 #if defined(CONFIG_CPU_ARM946E)
  58 # ifdef _CACHE
  59 #  define MULTI_CACHE 1
  60 # else
  61 #  define _CACHE arm946
  62 # endif
  63 #endif
  64 
  65 #if defined(CONFIG_CPU_CACHE_V4WB)
  66 # ifdef _CACHE
  67 #  define MULTI_CACHE 1
  68 # else
  69 #  define _CACHE v4wb
  70 # endif
  71 #endif
  72 
  73 #if defined(CONFIG_CPU_XSCALE)
  74 # ifdef _CACHE
  75 #  define MULTI_CACHE 1
  76 # else
  77 #  define _CACHE xscale
  78 # endif
  79 #endif
  80 
  81 #if defined(CONFIG_CPU_XSC3)
  82 # ifdef _CACHE
  83 #  define MULTI_CACHE 1
  84 # else
  85 #  define _CACHE xsc3
  86 # endif
  87 #endif
  88 
  89 #if defined(CONFIG_CPU_MOHAWK)
  90 # ifdef _CACHE
  91 #  define MULTI_CACHE 1
  92 # else
  93 #  define _CACHE mohawk
  94 # endif
  95 #endif
  96 
  97 #if defined(CONFIG_CPU_FEROCEON)
  98 # define MULTI_CACHE 1
  99 #endif
 100 
 101 #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K)
 102 # ifdef _CACHE
 103 #  define MULTI_CACHE 1
 104 # else
 105 #  define _CACHE v6
 106 # endif
 107 #endif
 108 
 109 #if defined(CONFIG_CPU_V7)
 110 # ifdef _CACHE
 111 #  define MULTI_CACHE 1
 112 # else
 113 #  define _CACHE v7
 114 # endif
 115 #endif
 116 
 117 #if defined(CONFIG_CACHE_B15_RAC)
 118 # define MULTI_CACHE 1
 119 #endif
 120 
 121 #if defined(CONFIG_CPU_V7M)
 122 #  define MULTI_CACHE 1
 123 #endif
 124 
 125 #if !defined(_CACHE) && !defined(MULTI_CACHE)
 126 #error Unknown cache maintenance model
 127 #endif
 128 
 129 #ifndef __ASSEMBLER__
 130 static inline void nop_flush_icache_all(void) { }
 131 static inline void nop_flush_kern_cache_all(void) { }
 132 static inline void nop_flush_kern_cache_louis(void) { }
 133 static inline void nop_flush_user_cache_all(void) { }
 134 static inline void nop_flush_user_cache_range(unsigned long a,
 135                 unsigned long b, unsigned int c) { }
 136 
 137 static inline void nop_coherent_kern_range(unsigned long a, unsigned long b) { }
 138 static inline int nop_coherent_user_range(unsigned long a,
 139                 unsigned long b) { return 0; }
 140 static inline void nop_flush_kern_dcache_area(void *a, size_t s) { }
 141 
 142 static inline void nop_dma_flush_range(const void *a, const void *b) { }
 143 
 144 static inline void nop_dma_map_area(const void *s, size_t l, int f) { }
 145 static inline void nop_dma_unmap_area(const void *s, size_t l, int f) { }
 146 #endif
 147 
 148 #ifndef MULTI_CACHE
 149 #define __cpuc_flush_icache_all         __glue(_CACHE,_flush_icache_all)
 150 #define __cpuc_flush_kern_all           __glue(_CACHE,_flush_kern_cache_all)
 151 #define __cpuc_flush_kern_louis         __glue(_CACHE,_flush_kern_cache_louis)
 152 #define __cpuc_flush_user_all           __glue(_CACHE,_flush_user_cache_all)
 153 #define __cpuc_flush_user_range         __glue(_CACHE,_flush_user_cache_range)
 154 #define __cpuc_coherent_kern_range      __glue(_CACHE,_coherent_kern_range)
 155 #define __cpuc_coherent_user_range      __glue(_CACHE,_coherent_user_range)
 156 #define __cpuc_flush_dcache_area        __glue(_CACHE,_flush_kern_dcache_area)
 157 
 158 #define dmac_flush_range                __glue(_CACHE,_dma_flush_range)
 159 #endif
 160 
 161 #endif