| /* | |
| * Task switching for PKUnity SoC and UniCore ISA | |
| * | |
| * Copyright (C) 2001-2012 GUAN Xue-tao | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| */ | |
| #ifndef __UNICORE_SWITCH_TO_H__ | |
| #define __UNICORE_SWITCH_TO_H__ | |
| struct task_struct; | |
| struct thread_info; | |
| /* | |
| * switch_to(prev, next) should switch from task `prev' to `next' | |
| * `prev' will never be the same as `next'. schedule() itself | |
| * contains the memory barrier to tell GCC not to cache `current'. | |
| */ | |
| extern struct task_struct *__switch_to(struct task_struct *, | |
| struct thread_info *, struct thread_info *); | |
| #define switch_to(prev, next, last) \ | |
| do { \ | |
| last = __switch_to(prev, task_thread_info(prev), \ | |
| task_thread_info(next)); \ | |
| } while (0) | |
| #endif /* __UNICORE_SWITCH_TO_H__ */ |