include/asm-arm/proc-fns.h

   1 /*
   2  *  linux/include/asm-arm/proc-fns.h
   3  *
   4  *  Copyright (C) 1997-1999 Russell King
   5  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11 #ifndef __ASM_PROCFNS_H
  12 #define __ASM_PROCFNS_H
  13
  14 #ifdef __KERNEL__
  15
  16
  17 /*
  18  * Work out if we need multiple CPU support
  19  */
  20 #undef MULTI_CPU
  21 #undef CPU_NAME
  22
  23 /*
  24  * CPU_NAME - the prefix for CPU related functions
  25  */
  26
  27 #ifdef CONFIG_CPU_32
  28 # ifdef CONFIG_CPU_ARM610
  29 #  ifdef CPU_NAME
  30 #   undef  MULTI_CPU
  31 #   define MULTI_CPU
  32 #  else
  33 #   define CPU_NAME cpu_arm6
  34 #  endif
  35 # endif
  36 # ifdef CONFIG_CPU_ARM7TDMI
  37 #  ifdef CPU_NAME
  38 #   undef  MULTI_CPU
  39 #   define MULTI_CPU
  40 #  else
  41 #   define CPU_NAME cpu_arm7tdmi
  42 #  endif
  43 # endif
  44 # ifdef CONFIG_CPU_ARM710
  45 #  ifdef CPU_NAME
  46 #   undef  MULTI_CPU
  47 #   define MULTI_CPU
  48 #  else
  49 #   define CPU_NAME cpu_arm7
  50 #  endif
  51 # endif
  52 # ifdef CONFIG_CPU_ARM720T
  53 #  ifdef CPU_NAME
  54 #   undef  MULTI_CPU
  55 #   define MULTI_CPU
  56 #  else
  57 #   define CPU_NAME cpu_arm720
  58 #  endif
  59 # endif
  60 # ifdef CONFIG_CPU_ARM740T
  61 #  ifdef CPU_NAME
  62 #   undef  MULTI_CPU
  63 #   define MULTI_CPU
  64 #  else
  65 #   define CPU_NAME cpu_arm740
  66 #  endif
  67 # endif
  68 # ifdef CONFIG_CPU_ARM9TDMI
  69 #  ifdef CPU_NAME
  70 #   undef  MULTI_CPU
  71 #   define MULTI_CPU
  72 #  else
  73 #   define CPU_NAME cpu_arm9tdmi
  74 #  endif
  75 # endif
  76 # ifdef CONFIG_CPU_ARM920T
  77 #  ifdef CPU_NAME
  78 #   undef  MULTI_CPU
  79 #   define MULTI_CPU
  80 #  else
  81 #   define CPU_NAME cpu_arm920
  82 #  endif
  83 # endif
  84 # ifdef CONFIG_CPU_ARM922T
  85 #  ifdef CPU_NAME
  86 #   undef  MULTI_CPU
  87 #   define MULTI_CPU
  88 #  else
  89 #   define CPU_NAME cpu_arm922
  90 #  endif
  91 # endif
  92 # ifdef CONFIG_CPU_ARM925T
  93 #  ifdef CPU_NAME
  94 #   undef  MULTI_CPU
  95 #   define MULTI_CPU
  96 #  else
  97 #   define CPU_NAME cpu_arm925
  98 #  endif
  99 # endif
 100 # ifdef CONFIG_CPU_ARM926T
 101 #  ifdef CPU_NAME
 102 #   undef  MULTI_CPU
 103 #   define MULTI_CPU
 104 #  else
 105 #   define CPU_NAME cpu_arm926
 106 #  endif
 107 # endif
 108 # ifdef CONFIG_CPU_ARM940T
 109 #  ifdef CPU_NAME
 110 #   undef  MULTI_CPU
 111 #   define MULTI_CPU
 112 #  else
 113 #   define CPU_NAME cpu_arm940
 114 #  endif
 115 # endif
 116 # ifdef CONFIG_CPU_ARM946E
 117 #  ifdef CPU_NAME
 118 #   undef  MULTI_CPU
 119 #   define MULTI_CPU
 120 #  else
 121 #   define CPU_NAME cpu_arm946
 122 #  endif
 123 # endif
 124 # ifdef CONFIG_CPU_SA110
 125 #  ifdef CPU_NAME
 126 #   undef  MULTI_CPU
 127 #   define MULTI_CPU
 128 #  else
 129 #   define CPU_NAME cpu_sa110
 130 #  endif
 131 # endif
 132 # ifdef CONFIG_CPU_SA1100
 133 #  ifdef CPU_NAME
 134 #   undef  MULTI_CPU
 135 #   define MULTI_CPU
 136 #  else
 137 #   define CPU_NAME cpu_sa1100
 138 #  endif
 139 # endif
 140 # ifdef CONFIG_CPU_ARM1020
 141 #  ifdef CPU_NAME
 142 #   undef  MULTI_CPU
 143 #   define MULTI_CPU
 144 #  else
 145 #   define CPU_NAME cpu_arm1020
 146 #  endif
 147 # endif
 148 # ifdef CONFIG_CPU_ARM1020E
 149 #  ifdef CPU_NAME
 150 #   undef  MULTI_CPU
 151 #   define MULTI_CPU
 152 #  else
 153 #   define CPU_NAME cpu_arm1020e
 154 #  endif
 155 # endif
 156 # ifdef CONFIG_CPU_ARM1022
 157 #  ifdef CPU_NAME
 158 #   undef  MULTI_CPU
 159 #   define MULTI_CPU
 160 #  else
 161 #   define CPU_NAME cpu_arm1022
 162 #  endif
 163 # endif
 164 # ifdef CONFIG_CPU_ARM1026
 165 #  ifdef CPU_NAME
 166 #   undef  MULTI_CPU
 167 #   define MULTI_CPU
 168 #  else
 169 #   define CPU_NAME cpu_arm1026
 170 #  endif
 171 # endif
 172 # ifdef CONFIG_CPU_XSCALE
 173 #  ifdef CPU_NAME
 174 #   undef  MULTI_CPU
 175 #   define MULTI_CPU
 176 #  else
 177 #   define CPU_NAME cpu_xscale
 178 #  endif
 179 # endif
 180 # ifdef CONFIG_CPU_XSC3
 181 #  ifdef CPU_NAME
 182 #   undef  MULTI_CPU
 183 #   define MULTI_CPU
 184 #  else
 185 #   define CPU_NAME cpu_xsc3
 186 #  endif
 187 # endif
 188 # ifdef CONFIG_CPU_FEROCEON
 189 #  ifdef CPU_NAME
 190 #   undef  MULTI_CPU
 191 #   define MULTI_CPU
 192 #  else
 193 #   define CPU_NAME cpu_feroceon
 194 #  endif
 195 # endif
 196 # ifdef CONFIG_CPU_V6
 197 #  ifdef CPU_NAME
 198 #   undef  MULTI_CPU
 199 #   define MULTI_CPU
 200 #  else
 201 #   define CPU_NAME cpu_v6
 202 #  endif
 203 # endif
 204 # ifdef CONFIG_CPU_V7
 205 #  ifdef CPU_NAME
 206 #   undef  MULTI_CPU
 207 #   define MULTI_CPU
 208 #  else
 209 #   define CPU_NAME cpu_v7
 210 #  endif
 211 # endif
 212 #endif
 213
 214 #ifndef __ASSEMBLY__
 215
 216 #ifndef MULTI_CPU
 217 #include "asm/cpu-single.h"
 218 #else
 219 #include "asm/cpu-multi32.h"
 220 #endif
 221
 222 #include <asm/memory.h>
 223
 224 #ifdef CONFIG_MMU
 225
 226 #define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
 227
 228 #define cpu_get_pgd()   \
 229         ({                                              \
 230                 unsigned long pg;                       \
 231                 __asm__("mrc    p15, 0, %0, c2, c0, 0"  \
 232                          : "=r" (pg) : : "cc");         \
 233                 pg &= ~0x3fff;                          \
 234                 (pgd_t *)phys_to_virt(pg);              \
 235         })
 236
 237 #endif
 238
 239 #endif /* __ASSEMBLY__ */
 240 #endif /* __KERNEL__ */
 241 #endif /* __ASM_PROCFNS_H */