arch/arc/include/asm/current.h

   1 /*
   2  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * Vineetg: May 16th, 2008
   9  *  - Current macro is now implemented as "global register" r25
  10  */
  11
  12 #ifndef _ASM_ARC_CURRENT_H
  13 #define _ASM_ARC_CURRENT_H
  14
  15 #ifdef __KERNEL__
  16
  17 #ifndef __ASSEMBLY__
  18
  19 #ifdef CONFIG_ARC_CURR_IN_REG
  20
  21 register struct task_struct *curr_arc asm("r25");
  22 #define current (curr_arc)
  23
  24 #else
  25 #include <asm-generic/current.h>
  26 #endif /* ! CONFIG_ARC_CURR_IN_REG */
  27
  28 #endif /* ! __ASSEMBLY__ */
  29
  30 #endif  /* __KERNEL__ */
  31
  32 #endif /* _ASM_ARC_CURRENT_H */