include/asm-powerpc/current.h

   1 #ifndef _ASM_POWERPC_CURRENT_H
   2 #define _ASM_POWERPC_CURRENT_H
   3
   4 /*
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version
   8  * 2 of the License, or (at your option) any later version.
   9  */
  10
  11 struct task_struct;
  12
  13 #ifdef __powerpc64__
  14 #include <asm/paca.h>
  15
  16 #define current         (get_paca()->__current)
  17
  18 #else
  19
  20 /*
  21  * We keep `current' in r2 for speed.
  22  */
  23 register struct task_struct *current asm ("r2");
  24
  25 #endif
  26
  27 #endif /* _ASM_POWERPC_CURRENT_H */