LXR linux/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 */
 175