| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _PPC_BOOT_SWAB_H_ |
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| 3 | #define _PPC_BOOT_SWAB_H_ |
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| 4 | |
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| 5 | static inline u16 swab16(u16 x) |
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| 6 | { |
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| 7 | return ((x & (u16)0x00ffU) << 8) | |
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| 8 | ((x & (u16)0xff00U) >> 8); |
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| 9 | } |
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| 10 | |
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| 11 | static inline u32 swab32(u32 x) |
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| 12 | { |
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| 13 | return ((x & (u32)0x000000ffUL) << 24) | |
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| 14 | ((x & (u32)0x0000ff00UL) << 8) | |
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| 15 | ((x & (u32)0x00ff0000UL) >> 8) | |
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| 16 | ((x & (u32)0xff000000UL) >> 24); |
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| 17 | } |
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| 18 | |
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| 19 | static inline u64 swab64(u64 x) |
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| 20 | { |
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| 21 | return (u64)((x & (u64)0x00000000000000ffULL) << 56) | |
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| 22 | (u64)((x & (u64)0x000000000000ff00ULL) << 40) | |
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| 23 | (u64)((x & (u64)0x0000000000ff0000ULL) << 24) | |
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| 24 | (u64)((x & (u64)0x00000000ff000000ULL) << 8) | |
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| 25 | (u64)((x & (u64)0x000000ff00000000ULL) >> 8) | |
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| 26 | (u64)((x & (u64)0x0000ff0000000000ULL) >> 24) | |
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| 27 | (u64)((x & (u64)0x00ff000000000000ULL) >> 40) | |
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| 28 | (u64)((x & (u64)0xff00000000000000ULL) >> 56); |
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| 29 | } |
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| 30 | #endif /* _PPC_BOOT_SWAB_H_ */ |
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| 31 | |
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