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 #include <linux/config.h>
  17
  18 /*
  19  * Work out if we need multiple CPU support
  20  */
  21 #undef MULTI_CPU
  22 #undef CPU_NAME
  23
  24 /*
  25  * CPU_NAME - the prefix for CPU related functions
  26  */
  27
  28 #ifdef CONFIG_CPU_32
  29 # ifdef CONFIG_CPU_ARM610
  30 #  ifdef CPU_NAME
  31 #   undef  MULTI_CPU
  32 #   define MULTI_CPU
  33 #  else
  34 #   define CPU_NAME cpu_arm6
  35 #  endif
  36 # endif
  37 # ifdef CONFIG_CPU_ARM710
  38 #  ifdef CPU_NAME
  39 #   undef  MULTI_CPU
  40 #   define MULTI_CPU
  41 #  else
  42 #   define CPU_NAME cpu_arm7
  43 #  endif
  44 # endif
  45 # ifdef CONFIG_CPU_ARM720T
  46 #  ifdef CPU_NAME
  47 #   undef  MULTI_CPU
  48 #   define MULTI_CPU
  49 #  else
  50 #   define CPU_NAME cpu_arm720
  51 #  endif
  52 # endif
  53 # ifdef CONFIG_CPU_ARM920T
  54 #  ifdef CPU_NAME
  55 #   undef  MULTI_CPU
  56 #   define MULTI_CPU
  57 #  else
  58 #   define CPU_NAME cpu_arm920
  59 #  endif
  60 # endif
  61 # ifdef CONFIG_CPU_ARM922T
  62 #  ifdef CPU_NAME
  63 #   undef  MULTI_CPU
  64 #   define MULTI_CPU
  65 #  else
  66 #   define CPU_NAME cpu_arm922
  67 #  endif
  68 # endif
  69 # ifdef CONFIG_CPU_ARM925T
  70 #  ifdef CPU_NAME
  71 #   undef  MULTI_CPU
  72 #   define MULTI_CPU
  73 #  else
  74 #   define CPU_NAME cpu_arm925
  75 #  endif
  76 # endif
  77 # ifdef CONFIG_CPU_ARM926T
  78 #  ifdef CPU_NAME
  79 #   undef  MULTI_CPU
  80 #   define MULTI_CPU
  81 #  else
  82 #   define CPU_NAME cpu_arm926
  83 #  endif
  84 # endif
  85 # ifdef CONFIG_CPU_SA110
  86 #  ifdef CPU_NAME
  87 #   undef  MULTI_CPU
  88 #   define MULTI_CPU
  89 #  else
  90 #   define CPU_NAME cpu_sa110
  91 #  endif
  92 # endif
  93 # ifdef CONFIG_CPU_SA1100
  94 #  ifdef CPU_NAME
  95 #   undef  MULTI_CPU
  96 #   define MULTI_CPU
  97 #  else
  98 #   define CPU_NAME cpu_sa1100
  99 #  endif
 100 # endif
 101 # ifdef CONFIG_CPU_ARM1020
 102 #  ifdef CPU_NAME
 103 #   undef  MULTI_CPU
 104 #   define MULTI_CPU
 105 #  else
 106 #   define CPU_NAME cpu_arm1020
 107 #  endif
 108 # endif
 109 # ifdef CONFIG_CPU_ARM1020E
 110 #  ifdef CPU_NAME
 111 #   undef  MULTI_CPU
 112 #   define MULTI_CPU
 113 #  else
 114 #   define CPU_NAME cpu_arm1020e
 115 #  endif
 116 # endif
 117 # ifdef CONFIG_CPU_ARM1022
 118 #  ifdef CPU_NAME
 119 #   undef  MULTI_CPU
 120 #   define MULTI_CPU
 121 #  else
 122 #   define CPU_NAME cpu_arm1022
 123 #  endif
 124 # endif
 125 # ifdef CONFIG_CPU_ARM1026
 126 #  ifdef CPU_NAME
 127 #   undef  MULTI_CPU
 128 #   define MULTI_CPU
 129 #  else
 130 #   define CPU_NAME cpu_arm1026
 131 #  endif
 132 # endif
 133 # ifdef CONFIG_CPU_XSCALE
 134 #  ifdef CPU_NAME
 135 #   undef  MULTI_CPU
 136 #   define MULTI_CPU
 137 #  else
 138 #   define CPU_NAME cpu_xscale
 139 #  endif
 140 # endif
 141 # ifdef CONFIG_CPU_V6
 142 #  ifdef CPU_NAME
 143 #   undef  MULTI_CPU
 144 #   define MULTI_CPU
 145 #  else
 146 #   define CPU_NAME cpu_v6
 147 #  endif
 148 # endif
 149 #endif
 150
 151 #ifndef __ASSEMBLY__
 152
 153 #ifndef MULTI_CPU
 154 #include "asm/cpu-single.h"
 155 #else
 156 #include "asm/cpu-multi32.h"
 157 #endif
 158
 159 #include <asm/memory.h>
 160
 161 #define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
 162
 163 #define cpu_get_pgd()   \
 164         ({                                              \
 165                 unsigned long pg;                       \
 166                 __asm__("mrc    p15, 0, %0, c2, c0, 0"  \
 167                          : "=r" (pg) : : "cc");         \
 168                 pg &= ~0x3fff;                          \
 169                 (pgd_t *)phys_to_virt(pg);              \
 170         })
 171
 172 #endif /* __ASSEMBLY__ */
 173 #endif /* __KERNEL__ */
 174 #endif /* __ASM_PROCFNS_H */