arch/unicore32/include/mach/bitfield.h

   1 /*
   2  * linux/arch/unicore32/include/mach/bitfield.h
   3  *
   4  * Code specific to PKUnity SoC and UniCore ISA
   5  *
   6  * Copyright (C) 2001-2010 GUAN Xue-tao
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12 #ifndef __MACH_PUV3_BITFIELD_H__
  13 #define __MACH_PUV3_BITFIELD_H__
  14
  15 #ifndef __ASSEMBLY__
  16 #define UData(Data)     ((unsigned long) (Data))
  17 #else
  18 #define UData(Data)     (Data)
  19 #endif
  20
  21 #define FIELD(val, vmask, vshift)       (((val) & ((UData(1) << (vmask)) - 1)) << (vshift))
  22 #define FMASK(vmask, vshift)            (((UData(1) << (vmask)) - 1) << (vshift))
  23
  24 #endif /* __MACH_PUV3_BITFIELD_H__ */