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1#ifndef __ASM_SH_SYSTEM_64_H
2#define __ASM_SH_SYSTEM_64_H
3
4/*
5 * include/asm-sh/system_64.h
6 *
7 * Copyright (C) 2000, 2001 Paolo Alberelli
8 * Copyright (C) 2003 Paul Mundt
9 * Copyright (C) 2004 Richard Curnow
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file "COPYING" in the main directory of this archive
13 * for more details.
14 */
15#include <asm/processor.h>
16
17/*
18 * switch_to() should switch tasks to task nr n, first
19 */
20struct task_struct *sh64_switch_to(struct task_struct *prev,
21 struct thread_struct *prev_thread,
22 struct task_struct *next,
23 struct thread_struct *next_thread);
24
25#define switch_to(prev,next,last) \
26do { \
27 if (last_task_used_math != next) { \
28 struct pt_regs *regs = next->thread.uregs; \
29 if (regs) regs->sr |= SR_FD; \
30 } \
31 last = sh64_switch_to(prev, &prev->thread, next, \
32 &next->thread); \
33} while (0)
34
35#define __uses_jump_to_uncached
36
37#define jump_to_uncached() do { } while (0)
38#define back_to_cached() do { } while (0)
39
40#endif /* __ASM_SH_SYSTEM_64_H */