arch/mips/include/asm/bitrev.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __MIPS_ASM_BITREV_H__
   3 #define __MIPS_ASM_BITREV_H__
   4
   5 #include <linux/swab.h>
   6
   7 static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
   8 {
   9         u32 ret;
  10
  11         asm("bitswap    %0, %1" : "=r"(ret) : "r"(__swab32(x)));
  12         return ret;
  13 }
  14
  15 static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
  16 {
  17         u16 ret;
  18
  19         asm("bitswap    %0, %1" : "=r"(ret) : "r"(__swab16(x)));
  20         return ret;
  21 }
  22
  23 static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
  24 {
  25         u8 ret;
  26
  27         asm("bitswap    %0, %1" : "=r"(ret) : "r"(x));
  28         return ret;
  29 }
  30
  31 #endif /* __MIPS_ASM_BITREV_H__ */