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
10 struct thread_struct;
11 struct task_struct;
12
13 /*
14 * switch_to() should switch tasks to task nr n, first
15 */
16 struct 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) \
22 do { \
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 */