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kernel/linux-rt-4.4.41/arch/powerpc/boot/swab.h 816 Bytes
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  #ifndef _PPC_BOOT_SWAB_H_
  #define _PPC_BOOT_SWAB_H_
  
  static inline u16 swab16(u16 x)
  {
  	return  ((x & (u16)0x00ffU) << 8) |
  		((x & (u16)0xff00U) >> 8);
  }
  
  static inline u32 swab32(u32 x)
  {
  	return  ((x & (u32)0x000000ffUL) << 24) |
  		((x & (u32)0x0000ff00UL) <<  8) |
  		((x & (u32)0x00ff0000UL) >>  8) |
  		((x & (u32)0xff000000UL) >> 24);
  }
  
  static inline u64 swab64(u64 x)
  {
  	return  (u64)((x & (u64)0x00000000000000ffULL) << 56) |
  		(u64)((x & (u64)0x000000000000ff00ULL) << 40) |
  		(u64)((x & (u64)0x0000000000ff0000ULL) << 24) |
  		(u64)((x & (u64)0x00000000ff000000ULL) <<  8) |
  		(u64)((x & (u64)0x000000ff00000000ULL) >>  8) |
  		(u64)((x & (u64)0x0000ff0000000000ULL) >> 24) |
  		(u64)((x & (u64)0x00ff000000000000ULL) >> 40) |
  		(u64)((x & (u64)0xff00000000000000ULL) >> 56);
  }
  #endif /* _PPC_BOOT_SWAB_H_ */