tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Task switching for PKUnity SoC and UniCore ISA
3 *
4 * Copyright (C) 2001-2012 GUAN Xue-tao
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 as
8 * published by the Free Software Foundation.
9 */
10#ifndef __UNICORE_SWITCH_TO_H__
11#define __UNICORE_SWITCH_TO_H__
12
13struct task_struct;
14struct thread_info;
15
16/*
17 * switch_to(prev, next) should switch from task `prev' to `next'
18 * `prev' will never be the same as `next'. schedule() itself
19 * contains the memory barrier to tell GCC not to cache `current'.
20 */
21extern struct task_struct *__switch_to(struct task_struct *,
22 struct thread_info *, struct thread_info *);
23
24#define switch_to(prev, next, last) \
25 do { \
26 last = __switch_to(prev, task_thread_info(prev), \
27 task_thread_info(next)); \
28 } while (0)
29
30#endif /* __UNICORE_SWITCH_TO_H__ */