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_ARM710
  37 #  ifdef CPU_NAME
  38 #   undef  MULTI_CPU
  39 #   define MULTI_CPU
  40 #  else
  41 #   define CPU_NAME cpu_arm7
  42 #  endif
  43 # endif
  44 # ifdef CONFIG_CPU_ARM720T
  45 #  ifdef CPU_NAME
  46 #   undef  MULTI_CPU
  47 #   define MULTI_CPU
  48 #  else
  49 #   define CPU_NAME cpu_arm720
  50 #  endif
  51 # endif
  52 # ifdef CONFIG_CPU_ARM920T
  53 #  ifdef CPU_NAME
  54 #   undef  MULTI_CPU
  55 #   define MULTI_CPU
  56 #  else
  57 #   define CPU_NAME cpu_arm920
  58 #  endif
  59 # endif
  60 # ifdef CONFIG_CPU_ARM922T
  61 #  ifdef CPU_NAME
  62 #   undef  MULTI_CPU
  63 #   define MULTI_CPU
  64 #  else
  65 #   define CPU_NAME cpu_arm922
  66 #  endif
  67 # endif
  68 # ifdef CONFIG_CPU_ARM925T
  69 #  ifdef CPU_NAME
  70 #   undef  MULTI_CPU
  71 #   define MULTI_CPU
  72 #  else
  73 #   define CPU_NAME cpu_arm925
  74 #  endif
  75 # endif
  76 # ifdef CONFIG_CPU_ARM926T
  77 #  ifdef CPU_NAME
  78 #   undef  MULTI_CPU
  79 #   define MULTI_CPU
  80 #  else
  81 #   define CPU_NAME cpu_arm926
  82 #  endif
  83 # endif
  84 # ifdef CONFIG_CPU_SA110
  85 #  ifdef CPU_NAME
  86 #   undef  MULTI_CPU
  87 #   define MULTI_CPU
  88 #  else
  89 #   define CPU_NAME cpu_sa110
  90 #  endif
  91 # endif
  92 # ifdef CONFIG_CPU_SA1100
  93 #  ifdef CPU_NAME
  94 #   undef  MULTI_CPU
  95 #   define MULTI_CPU
  96 #  else
  97 #   define CPU_NAME cpu_sa1100
  98 #  endif
  99 # endif
 100 # ifdef CONFIG_CPU_ARM1020
 101 #  ifdef CPU_NAME
 102 #   undef  MULTI_CPU
 103 #   define MULTI_CPU
 104 #  else
 105 #   define CPU_NAME cpu_arm1020
 106 #  endif
 107 # endif
 108 # ifdef CONFIG_CPU_ARM1020E
 109 #  ifdef CPU_NAME
 110 #   undef  MULTI_CPU
 111 #   define MULTI_CPU
 112 #  else
 113 #   define CPU_NAME cpu_arm1020e
 114 #  endif
 115 # endif
 116 # ifdef CONFIG_CPU_ARM1022
 117 #  ifdef CPU_NAME
 118 #   undef  MULTI_CPU
 119 #   define MULTI_CPU
 120 #  else
 121 #   define CPU_NAME cpu_arm1022
 122 #  endif
 123 # endif
 124 # ifdef CONFIG_CPU_ARM1026
 125 #  ifdef CPU_NAME
 126 #   undef  MULTI_CPU
 127 #   define MULTI_CPU
 128 #  else
 129 #   define CPU_NAME cpu_arm1026
 130 #  endif
 131 # endif
 132 # ifdef CONFIG_CPU_XSCALE
 133 #  ifdef CPU_NAME
 134 #   undef  MULTI_CPU
 135 #   define MULTI_CPU
 136 #  else
 137 #   define CPU_NAME cpu_xscale
 138 #  endif
 139 # endif
 140 # ifdef CONFIG_CPU_XSC3
 141 #  ifdef CPU_NAME
 142 #   undef  MULTI_CPU
 143 #   define MULTI_CPU
 144 #  else
 145 #   define CPU_NAME cpu_xsc3
 146 #  endif
 147 # endif
 148 # ifdef CONFIG_CPU_V6
 149 #  ifdef CPU_NAME
 150 #   undef  MULTI_CPU
 151 #   define MULTI_CPU
 152 #  else
 153 #   define CPU_NAME cpu_v6
 154 #  endif
 155 # endif
 156 #endif
 157
 158 #ifndef __ASSEMBLY__
 159
 160 #ifndef MULTI_CPU
 161 #include "asm/cpu-single.h"
 162 #else
 163 #include "asm/cpu-multi32.h"
 164 #endif
 165
 166 #include <asm/memory.h>
 167
 168 #ifdef CONFIG_MMU
 169
 170 #define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
 171
 172 #define cpu_get_pgd()   \
 173         ({                                              \
 174                 unsigned long pg;                       \
 175                 __asm__("mrc    p15, 0, %0, c2, c0, 0"  \
 176                          : "=r" (pg) : : "cc");         \
 177                 pg &= ~0x3fff;                          \
 178                 (pgd_t *)phys_to_virt(pg);              \
 179         })
 180
 181 #endif
 182
 183 #endif /* __ASSEMBLY__ */
 184 #endif /* __KERNEL__ */
 185 #endif /* __ASM_PROCFNS_H */