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_LCMPLI      stringify_in_c(cmpldi)
  27 #define PPC_LCMP        stringify_in_c(cmpd)
  28 #define PPC_LONG        stringify_in_c(.llong)
  29 #define PPC_LONG_ALIGN  stringify_in_c(.balign 8)
  30 #define PPC_TLNEI       stringify_in_c(tdnei)
  31 #define PPC_LLARX(t, a, b, eh)  PPC_LDARX(t, a, b, eh)
  32 #define PPC_STLCX       stringify_in_c(stdcx.)
  33 #define PPC_CNTLZL      stringify_in_c(cntlzd)
  34 #define PPC_MTOCRF(FXM, RS) MTOCRF((FXM), RS)
  35 #define PPC_LR_STKOFF   16
  36 #define PPC_MIN_STKFRM  112
  37
  38 #ifdef __BIG_ENDIAN__
  39 #define LWZX_BE stringify_in_c(lwzx)
  40 #define LDX_BE  stringify_in_c(ldx)
  41 #define STWX_BE stringify_in_c(stwx)
  42 #define STDX_BE stringify_in_c(stdx)
  43 #else
  44 #define LWZX_BE stringify_in_c(lwbrx)
  45 #define LDX_BE  stringify_in_c(ldbrx)
  46 #define STWX_BE stringify_in_c(stwbrx)
  47 #define STDX_BE stringify_in_c(stdbrx)
  48 #endif
  49
  50 #else /* 32-bit */
  51
  52 /* operations for longs and pointers */
  53 #define PPC_LL          stringify_in_c(lwz)
  54 #define PPC_STL         stringify_in_c(stw)
  55 #define PPC_STLU        stringify_in_c(stwu)
  56 #define PPC_LCMPI       stringify_in_c(cmpwi)
  57 #define PPC_LCMPLI      stringify_in_c(cmplwi)
  58 #define PPC_LCMP        stringify_in_c(cmpw)
  59 #define PPC_LONG        stringify_in_c(.long)
  60 #define PPC_LONG_ALIGN  stringify_in_c(.balign 4)
  61 #define PPC_TLNEI       stringify_in_c(twnei)
  62 #define PPC_LLARX(t, a, b, eh)  PPC_LWARX(t, a, b, eh)
  63 #define PPC_STLCX       stringify_in_c(stwcx.)
  64 #define PPC_CNTLZL      stringify_in_c(cntlzw)
  65 #define PPC_MTOCRF      stringify_in_c(mtcrf)
  66 #define PPC_LR_STKOFF   4
  67 #define PPC_MIN_STKFRM  16
  68
  69 #endif
  70
  71 #ifdef __KERNEL__
  72 #ifdef CONFIG_IBM405_ERR77
  73 /* Erratum #77 on the 405 means we need a sync or dcbt before every
  74  * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
  75  */
  76 #define PPC405_ERR77(ra,rb)     stringify_in_c(dcbt     ra, rb;)
  77 #define PPC405_ERR77_SYNC       stringify_in_c(sync;)
  78 #else
  79 #define PPC405_ERR77(ra,rb)
  80 #define PPC405_ERR77_SYNC
  81 #endif
  82 #endif
  83
  84 #endif /* _ASM_POWERPC_ASM_COMPAT_H */