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
  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 */