include/asm-powerpc/current.h

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