release/src-rt-6.x.4708/linux/linux-2.6.36/arch/ia64/include/asm/swab.h

   1 #ifndef _ASM_IA64_SWAB_H
   2 #define _ASM_IA64_SWAB_H
   3
   4 /*
   5  * Modified 1998, 1999
   6  *      David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co.
   7  */
   8
   9 #include <linux/types.h>
  10 #include <asm/intrinsics.h>
  11 #include <linux/compiler.h>
  12
  13 static __inline__ __attribute_const__ __u64 __arch_swab64(__u64 x)
  14 {
  15         __u64 result;
  16
  17         result = ia64_mux1(x, ia64_mux1_rev);
  18         return result;
  19 }
  20 #define __arch_swab64 __arch_swab64
  21
  22 static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 x)
  23 {
  24         return __arch_swab64(x) >> 32;
  25 }
  26 #define __arch_swab32 __arch_swab32
  27
  28 static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 x)
  29 {
  30         return __arch_swab64(x) >> 48;
  31 }
  32 #define __arch_swab16 __arch_swab16
  33
  34 #endif /* _ASM_IA64_SWAB_H */