| 1 |
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| 2 | #ifndef __ASM_BITREV_H
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| 3 | #define __ASM_BITREV_H
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| 4 |
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| 5 | static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
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| 6 | {
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| 7 | __asm__ ("rbit %0, %1" : "=r" (x) : "r" (x));
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| 8 | return x;
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| 9 | }
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| 10 |
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| 11 | static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
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| 12 | {
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| 13 | return __arch_bitrev32((u32)x) >> 16;
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| 14 | }
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| 15 |
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| 16 | static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
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| 17 | {
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| 18 | return __arch_bitrev32((u32)x) >> 24;
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| 19 | }
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| 20 |
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| 21 | #endif
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