e72e9355e3
git: https://android.googlesource.com/kernel/common branch: android-4.9 commit: 03fcc2fe71308c2d164b4e6cbfc738c63e670444
20 lines
413 B
C
20 lines
413 B
C
#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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