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bf90e1ea VG |
1 | /* |
2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef _ASM_ARC_SWITCH_TO_H | |
10 | #define _ASM_ARC_SWITCH_TO_H | |
11 | ||
12 | #ifndef __ASSEMBLY__ | |
13 | ||
14 | #include <linux/sched.h> | |
15 | ||
16 | #ifdef CONFIG_ARC_FPU_SAVE_RESTORE | |
17 | ||
18 | extern void fpu_save_restore(struct task_struct *p, struct task_struct *n); | |
19 | #define ARC_FPU_PREV(p, n) fpu_save_restore(p, n) | |
20 | #define ARC_FPU_NEXT(t) | |
21 | ||
22 | #else | |
23 | ||
24 | #define ARC_FPU_PREV(p, n) | |
25 | #define ARC_FPU_NEXT(n) | |
26 | ||
27 | #endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */ | |
28 | ||
29 | struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n); | |
30 | ||
31 | #define switch_to(prev, next, last) \ | |
32 | do { \ | |
33 | ARC_FPU_PREV(prev, next); \ | |
34 | last = __switch_to(prev, next);\ | |
35 | ARC_FPU_NEXT(next); \ | |
36 | mb(); \ | |
37 | } while (0) | |
38 | ||
39 | #endif | |
40 | ||
41 | #endif |