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20 lines
452 B
20 lines
452 B
/* 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 %w0, %w1" : "=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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