12345678910111213141516171819202122232425262728293031323334 |
- /* 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__ */
|