arch/mips/include/asm/bitrev.h

   1 #ifndef __MIPS_ASM_BITREV_H__
   2 #define __MIPS_ASM_BITREV_H__
   3
   4 #include <linux/swab.h>
   5
   6 static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
   7 {
   8         u32 ret;
   9
  10         asm("bitswap    %0, %1" : "=r"(ret) : "r"(__swab32(x)));
  11         return ret;
  12 }
  13
  14 static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
  15 {
  16         u16 ret;
  17
  18         asm("bitswap    %0, %1" : "=r"(ret) : "r"(__swab16(x)));
  19         return ret;
  20 }
  21
  22 static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
  23 {
  24         u8 ret;
  25
  26         asm("bitswap    %0, %1" : "=r"(ret) : "r"(x));
  27         return ret;
  28 }
  29
  30 #endif /* __MIPS_ASM_BITREV_H__ */