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