xref: /openbmc/linux/arch/powerpc/boot/swab.h (revision d2999e1b)
1 #ifndef _PPC_BOOT_SWAB_H_
2 #define _PPC_BOOT_SWAB_H_
3 
4 static inline u16 swab16(u16 x)
5 {
6 	return  ((x & (u16)0x00ffU) << 8) |
7 		((x & (u16)0xff00U) >> 8);
8 }
9 
10 static inline u32 swab32(u32 x)
11 {
12 	return  ((x & (u32)0x000000ffUL) << 24) |
13 		((x & (u32)0x0000ff00UL) <<  8) |
14 		((x & (u32)0x00ff0000UL) >>  8) |
15 		((x & (u32)0xff000000UL) >> 24);
16 }
17 
18 static inline u64 swab64(u64 x)
19 {
20 	return  (u64)((x & (u64)0x00000000000000ffULL) << 56) |
21 		(u64)((x & (u64)0x000000000000ff00ULL) << 40) |
22 		(u64)((x & (u64)0x0000000000ff0000ULL) << 24) |
23 		(u64)((x & (u64)0x00000000ff000000ULL) <<  8) |
24 		(u64)((x & (u64)0x000000ff00000000ULL) >>  8) |
25 		(u64)((x & (u64)0x0000ff0000000000ULL) >> 24) |
26 		(u64)((x & (u64)0x00ff000000000000ULL) >> 40) |
27 		(u64)((x & (u64)0xff00000000000000ULL) >> 56);
28 }
29 #endif /* _PPC_BOOT_SWAB_H_ */
30