root/arch/powerpc/boot/swab.h

INCLUDED FROM

DEFINITIONS

1. swab16
2. swab32
3. swab64

   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_ */