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34 lines
703 B
34 lines
703 B
/* 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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