5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
22 lines
451 B
C
22 lines
451 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_BITREV_H
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#define __ASM_BITREV_H
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static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
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{
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__asm__ ("rbit %0, %1" : "=r" (x) : "r" (x));
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return x;
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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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return __arch_bitrev32((u32)x) >> 16;
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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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return __arch_bitrev32((u32)x) >> 24;
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}
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#endif
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