| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2020-2022 Loongson Technology Corporation Limited |
| */ |
| #ifndef __LOONGARCH_ASM_BITREV_H__ |
| #define __LOONGARCH_ASM_BITREV_H__ |
| |
| #include <linux/swab.h> |
| |
| static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x) |
| { |
| u32 ret; |
| |
| asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(__swab32(x))); |
| return ret; |
| } |
| |
| static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x) |
| { |
| u16 ret; |
| |
| asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(__swab16(x))); |
| return ret; |
| } |
| |
| static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x) |
| { |
| u8 ret; |
| |
| asm("bitrev.4b %0, %1" : "=r"(ret) : "r"(x)); |
| return ret; |
| } |
| |
| #endif /* __LOONGARCH_ASM_BITREV_H__ */ |
