1/*
2 * Copyright (C) 2000, 2001  Paolo Alberelli
3 * Copyright (C) 2003  Paul Mundt
4 * Copyright (C) 2004  Richard Curnow
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License.  See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10#ifndef __ASM_SH_SWITCH_TO_64_H
11#define __ASM_SH_SWITCH_TO_64_H
12
13struct thread_struct;
14struct task_struct;
15
16/*
17 *	switch_to() should switch tasks to task nr n, first
18 */
19struct task_struct *sh64_switch_to(struct task_struct *prev,
20				   struct thread_struct *prev_thread,
21				   struct task_struct *next,
22				   struct thread_struct *next_thread);
23
24#define switch_to(prev,next,last)				\
25do {								\
26	if (last_task_used_math != next) {			\
27		struct pt_regs *regs = next->thread.uregs;	\
28		if (regs) regs->sr |= SR_FD;			\
29	}							\
30	last = sh64_switch_to(prev, &prev->thread, next,	\
31			      &next->thread);			\
32} while (0)
33
34
35#endif /* __ASM_SH_SWITCH_TO_64_H */
36