arch/sparc/include/asm/byteorder.h

   1 #ifndef _SPARC_BYTEORDER_H
   2 #define _SPARC_BYTEORDER_H
   3
   4 #include <linux/types.h>
   5 #include <asm/asi.h>
   6
   7 #define __BIG_ENDIAN
   8
   9 #if defined(__sparc__) && defined(__arch64__)
  10 static inline __u16 __arch_swab16p(const __u16 *addr)
  11 {
  12         __u16 ret;
  13
  14         __asm__ __volatile__ ("lduha [%1] %2, %0"
  15                               : "=r" (ret)
  16                               : "r" (addr), "i" (ASI_PL));
  17         return ret;
  18 }
  19 #define __arch_swab16p __arch_swab16p
  20
  21 static inline __u32 __arch_swab32p(const __u32 *addr)
  22 {
  23         __u32 ret;
  24
  25         __asm__ __volatile__ ("lduwa [%1] %2, %0"
  26                               : "=r" (ret)
  27                               : "r" (addr), "i" (ASI_PL));
  28         return ret;
  29 }
  30 #define __arch_swab32p __arch_swab32p
  31
  32 static inline __u64 __arch_swab64p(const __u64 *addr)
  33 {
  34         __u64 ret;
  35
  36         __asm__ __volatile__ ("ldxa [%1] %2, %0"
  37                               : "=r" (ret)
  38                               : "r" (addr), "i" (ASI_PL));
  39         return ret;
  40 }
  41 #define __arch_swab64p __arch_swab64p
  42
  43 #else
  44 #define __SWAB_64_THRU_32__
  45 #endif /* defined(__sparc__) && defined(__arch64__) */
  46
  47 #include <linux/byteorder.h>
  48
  49 #endif /* _SPARC_BYTEORDER_H */