1/*
2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef _ASM_ARC_SWITCH_TO_H
10#define _ASM_ARC_SWITCH_TO_H
11
12#ifndef __ASSEMBLY__
13
14#include <linux/sched.h>
15
16#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
17
18extern void fpu_save_restore(struct task_struct *p, struct task_struct *n);
19#define ARC_FPU_PREV(p, n)	fpu_save_restore(p, n)
20#define ARC_FPU_NEXT(t)
21
22#else
23
24#define ARC_FPU_PREV(p, n)
25#define ARC_FPU_NEXT(n)
26
27#endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */
28
29struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
30
31#define switch_to(prev, next, last)	\
32do {					\
33	ARC_FPU_PREV(prev, next);	\
34	last = __switch_to(prev, next);\
35	ARC_FPU_NEXT(next);		\
36	mb();				\
37} while (0)
38
39#endif
40
41#endif
42