1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 4 */
 5
 6#ifndef _ASM_ARC_SWITCH_TO_H
 7#define _ASM_ARC_SWITCH_TO_H
 8
 9#ifndef __ASSEMBLY__
10
11#include <linux/sched.h>
12#include <asm/dsp-impl.h>
13#include <asm/fpu.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
14
15struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
16
17#define switch_to(prev, next, last)	\
18do {					\
19	dsp_save_restore(prev, next);	\
20	fpu_save_restore(prev, next);	\
21	last = __switch_to(prev, next);\
 
22	mb();				\
23} while (0)
24
25#endif
26
27#endif

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 4 */
 5
 6#ifndef _ASM_ARC_SWITCH_TO_H
 7#define _ASM_ARC_SWITCH_TO_H
 8
 9#ifndef __ASSEMBLY__
10
11#include <linux/sched.h>
12
13#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
14
15extern void fpu_save_restore(struct task_struct *p, struct task_struct *n);
16#define ARC_FPU_PREV(p, n)	fpu_save_restore(p, n)
17#define ARC_FPU_NEXT(t)
18
19#else
20
21#define ARC_FPU_PREV(p, n)
22#define ARC_FPU_NEXT(n)
23
24#endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */
25
26#ifdef CONFIG_ARC_PLAT_EZNPS
27extern void dp_save_restore(struct task_struct *p, struct task_struct *n);
28#define ARC_EZNPS_DP_PREV(p, n)      dp_save_restore(p, n)
29#else
30#define ARC_EZNPS_DP_PREV(p, n)
31
32#endif /* !CONFIG_ARC_PLAT_EZNPS */
33
34struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);
35
36#define switch_to(prev, next, last)	\
37do {					\
38	ARC_EZNPS_DP_PREV(prev, next);	\
39	ARC_FPU_PREV(prev, next);	\
40	last = __switch_to(prev, next);\
41	ARC_FPU_NEXT(next);		\
42	mb();				\
43} while (0)
44
45#endif
46
47#endif