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