linux/arch/xtensa/include/asm/switch_to.h

23 lines
601 B
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001 - 2005 Tensilica Inc.
*/
#ifndef _XTENSA_SWITCH_TO_H
#define _XTENSA_SWITCH_TO_H
/* * switch_to(n) should switch tasks to task nr n, first
* checking that n isn't the current task, in which case it does nothing.
*/
extern void *_switch_to(void *last, void *next);
#define switch_to(prev,next,last) \
do { \
(last) = _switch_to(prev, next); \
} while(0)
#endif /* _XTENSA_SWITCH_TO_H */