arch/hexagon/include/asm/switch_to.h

   1 /*
   2  * Task switching definitions for the Hexagon architecture
   3  *
   4  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 and
   8  * only version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA.
  19  */
  20
  21 #ifndef _ASM_SWITCH_TO_H
  22 #define _ASM_SWITCH_TO_H
  23
  24 struct thread_struct;
  25
  26 extern struct task_struct *__switch_to(struct task_struct *,
  27         struct task_struct *,
  28         struct task_struct *);
  29
  30 #define switch_to(p, n, r) do {\
  31         r = __switch_to((p), (n), (r));\
  32 } while (0)
  33
  34 #endif /* _ASM_SWITCH_TO_H */