1/* SPDX-License-Identifier: GPL-2.0
 2 *
 3 * Copyright (C) 2000, 2001  Paolo Alberelli
 4 * Copyright (C) 2003  Paul Mundt
 5 * Copyright (C) 2004  Richard Curnow
 6 */
 7#ifndef __ASM_SH_SWITCH_TO_64_H
 8#define __ASM_SH_SWITCH_TO_64_H
 9
10struct thread_struct;
11struct task_struct;
12
13/*
14 *	switch_to() should switch tasks to task nr n, first
15 */
16struct task_struct *sh64_switch_to(struct task_struct *prev,
17				   struct thread_struct *prev_thread,
18				   struct task_struct *next,
19				   struct thread_struct *next_thread);
20
21#define switch_to(prev,next,last)				\
22do {								\
23	if (last_task_used_math != next) {			\
24		struct pt_regs *regs = next->thread.uregs;	\
25		if (regs) regs->sr |= SR_FD;			\
26	}							\
27	last = sh64_switch_to(prev, &prev->thread, next,	\
28			      &next->thread);			\
29} while (0)
30
31
32#endif /* __ASM_SH_SWITCH_TO_64_H */