include/asm-powerpc/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 #ifdef __powerpc64__
  18
  19 /* operations for longs and pointers */
  20 #define PPC_LL          stringify_in_c(ld)
  21 #define PPC_STL         stringify_in_c(std)
  22 #define PPC_LCMPI       stringify_in_c(cmpdi)
  23 #define PPC_LONG        stringify_in_c(.llong)
  24 #define PPC_TLNEI       stringify_in_c(tdnei)
  25 #define PPC_LLARX       stringify_in_c(ldarx)
  26 #define PPC_STLCX       stringify_in_c(stdcx.)
  27 #define PPC_CNTLZL      stringify_in_c(cntlzd)
  28
  29 #else /* 32-bit */
  30
  31 /* operations for longs and pointers */
  32 #define PPC_LL          stringify_in_c(lwz)
  33 #define PPC_STL         stringify_in_c(stw)
  34 #define PPC_LCMPI       stringify_in_c(cmpwi)
  35 #define PPC_LONG        stringify_in_c(.long)
  36 #define PPC_TLNEI       stringify_in_c(twnei)
  37 #define PPC_LLARX       stringify_in_c(lwarx)
  38 #define PPC_STLCX       stringify_in_c(stwcx.)
  39 #define PPC_CNTLZL      stringify_in_c(cntlzw)
  40
  41 #endif
  42
  43 #ifdef __KERNEL__
  44 #ifdef CONFIG_IBM405_ERR77
  45 /* Erratum #77 on the 405 means we need a sync or dcbt before every
  46  * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
  47  */
  48 #define PPC405_ERR77(ra,rb)     stringify_in_c(dcbt     ra, rb;)
  49 #define PPC405_ERR77_SYNC       stringify_in_c(sync;)
  50 #else
  51 #define PPC405_ERR77(ra,rb)
  52 #define PPC405_ERR77_SYNC
  53 #endif
  54 #endif
  55
  56 #endif /* _ASM_POWERPC_ASM_COMPAT_H */