LXR linux/arch/powerpc/include/asm/asm-compat.h

   1#ifndef _ASM_POWERPC_ASM_COMPAT_H
   2#define _ASM_POWERPC_ASM_COMPAT_H
   3
   4#include <asm/types.h>
   5
   6#ifdef __ASSEMBLY__
   7#  define stringify_in_c(...)   __VA_ARGS__
   8#  define ASM_CONST(x)          x
   9#else
  10/* This version of stringify will deal with commas... */
  11#  define __stringify_in_c(...) #__VA_ARGS__
  12#  define stringify_in_c(...)   __stringify_in_c(__VA_ARGS__) " "
  13#  define __ASM_CONST(x)        x##UL
  14#  define ASM_CONST(x)          __ASM_CONST(x)
  15#endif
  16
  17
  18#ifdef __powerpc64__
  19
  20/* operations for longs and pointers */
  21#define PPC_LL          stringify_in_c(ld)
  22#define PPC_STL         stringify_in_c(std)
  23#define PPC_LCMPI       stringify_in_c(cmpdi)
  24#define PPC_LONG        stringify_in_c(.llong)
  25#define PPC_LONG_ALIGN  stringify_in_c(.balign 8)
  26#define PPC_TLNEI       stringify_in_c(tdnei)
  27#define PPC_LLARX       stringify_in_c(ldarx)
  28#define PPC_STLCX       stringify_in_c(stdcx.)
  29#define PPC_CNTLZL      stringify_in_c(cntlzd)
  30
  31/* Move to CR, single-entry optimized version. Only available
  32 * on POWER4 and later.
  33 */
  34#ifdef CONFIG_POWER4_ONLY
  35#define PPC_MTOCRF      stringify_in_c(mtocrf)
  36#else
  37#define PPC_MTOCRF      stringify_in_c(mtcrf)
  38#endif
  39
  40#else /* 32-bit */
  41
  42/* operations for longs and pointers */
  43#define PPC_LL          stringify_in_c(lwz)
  44#define PPC_STL         stringify_in_c(stw)
  45#define PPC_LCMPI       stringify_in_c(cmpwi)
  46#define PPC_LONG        stringify_in_c(.long)
  47#define PPC_LONG_ALIGN  stringify_in_c(.balign 4)
  48#define PPC_TLNEI       stringify_in_c(twnei)
  49#define PPC_LLARX       stringify_in_c(lwarx)
  50#define PPC_STLCX       stringify_in_c(stwcx.)
  51#define PPC_CNTLZL      stringify_in_c(cntlzw)
  52#define PPC_MTOCRF      stringify_in_c(mtcrf)
  53
  54#endif
  55
  56#ifdef __KERNEL__
  57#ifdef CONFIG_IBM405_ERR77
  58/* Erratum #77 on the 405 means we need a sync or dcbt before every
  59 * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
  60 */
  61#define PPC405_ERR77(ra,rb)     stringify_in_c(dcbt     ra, rb;)
  62#define PPC405_ERR77_SYNC       stringify_in_c(sync;)
  63#else
  64#define PPC405_ERR77(ra,rb)
  65#define PPC405_ERR77_SYNC
  66#endif
  67#endif
  68
  69#endif /* _ASM_POWERPC_ASM_COMPAT_H */
  70