LXR linux/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
   7static __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
  15static __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
  23static __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__ */
  32