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 #include <asm/ppc-opcode.h>
   6
   7 #ifdef __ASSEMBLY__
   8 #  define stringify_in_c(...)   __VA_ARGS__
   9 #  define ASM_CONST(x)          x
  10 #else
  11 /* This version of stringify will deal with commas... */
  12 #  define __stringify_in_c(...) #__VA_ARGS__
  13 #  define stringify_in_c(...)   __stringify_in_c(__VA_ARGS__) " "
  14 #  define __ASM_CONST(x)        x##UL
  15 #  define ASM_CONST(x)          __ASM_CONST(x)
  16 #endif
  17
  18
  19 #ifdef __powerpc64__
  20
  21 /* operations for longs and pointers */
  22 #define PPC_LL          stringify_in_c(ld)
  23 #define PPC_STL         stringify_in_c(std)
  24 #define PPC_STLU        stringify_in_c(stdu)
  25 #define PPC_LCMPI       stringify_in_c(cmpdi)
  26 #define PPC_LONG        stringify_in_c(.llong)
  27 #define PPC_LONG_ALIGN  stringify_in_c(.balign 8)
  28 #define PPC_TLNEI       stringify_in_c(tdnei)
  29 #define PPC_LLARX(t, a, b, eh)  PPC_LDARX(t, a, b, eh)
  30 #define PPC_STLCX       stringify_in_c(stdcx.)
  31 #define PPC_CNTLZL      stringify_in_c(cntlzd)
  32 #define PPC_LR_STKOFF   16
  33 #define PPC_MIN_STKFRM  112
  34
  35 /* Move to CR, single-entry optimized version. Only available
  36  * on POWER4 and later.
  37  */
  38 #ifdef CONFIG_POWER4_ONLY
  39 #define PPC_MTOCRF      stringify_in_c(mtocrf)
  40 #else
  41 #define PPC_MTOCRF      stringify_in_c(mtcrf)
  42 #endif
  43
  44 #else /* 32-bit */
  45
  46 /* operations for longs and pointers */
  47 #define PPC_LL          stringify_in_c(lwz)
  48 #define PPC_STL         stringify_in_c(stw)
  49 #define PPC_STLU        stringify_in_c(stwu)
  50 #define PPC_LCMPI       stringify_in_c(cmpwi)
  51 #define PPC_LONG        stringify_in_c(.long)
  52 #define PPC_LONG_ALIGN  stringify_in_c(.balign 4)
  53 #define PPC_TLNEI       stringify_in_c(twnei)
  54 #define PPC_LLARX(t, a, b, eh)  PPC_LWARX(t, a, b, eh)
  55 #define PPC_STLCX       stringify_in_c(stwcx.)
  56 #define PPC_CNTLZL      stringify_in_c(cntlzw)
  57 #define PPC_MTOCRF      stringify_in_c(mtcrf)
  58 #define PPC_LR_STKOFF   4
  59 #define PPC_MIN_STKFRM  16
  60
  61 #endif
  62
  63 #ifdef __KERNEL__
  64 #ifdef CONFIG_IBM405_ERR77
  65 /* Erratum #77 on the 405 means we need a sync or dcbt before every
  66  * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
  67  */
  68 #define PPC405_ERR77(ra,rb)     stringify_in_c(dcbt     ra, rb;)
  69 #define PPC405_ERR77_SYNC       stringify_in_c(sync;)
  70 #else
  71 #define PPC405_ERR77(ra,rb)
  72 #define PPC405_ERR77_SYNC
  73 #endif
  74 #endif
  75
  76 #endif /* _ASM_POWERPC_ASM_COMPAT_H */