arch/cris/include/arch-v10/arch/swab.h

   1 #ifndef _CRIS_ARCH_SWAB_H
   2 #define _CRIS_ARCH_SWAB_H
   3
   4 #include <asm/types.h>
   5 #include <linux/compiler.h>
   6
   7 #define __SWAB_64_THRU_32__
   8
   9 /* we just define these two (as we can do the swap in a single
  10  * asm instruction in CRIS) and the arch-independent files will put
  11  * them together into ntohl etc.
  12  */
  13
  14 static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
  15 {
  16         __asm__ ("swapwb %0" : "=r" (x) : "0" (x));
  17
  18         return(x);
  19 }
  20 #define __arch_swab32 __arch_swab32
  21
  22 static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
  23 {
  24         __asm__ ("swapb %0" : "=r" (x) : "0" (x));
  25
  26         return(x);
  27 }
  28 #define __arch_swab16 __arch_swab16
  29
  30 #endif