Merge tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
[linux/fpc-iii.git] / arch / arm / include / asm / bitrev.h
blob84ad8dde62d643e6602fdddbc3c9b5370bdaab6c
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_BITREV_H
3 #define __ASM_BITREV_H
5 static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
7 __asm__ ("rbit %0, %1" : "=r" (x) : "r" (x));
8 return x;
11 static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
13 return __arch_bitrev32((u32)x) >> 16;
16 static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
18 return __arch_bitrev32((u32)x) >> 24;
21 #endif