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1 | /* Generic task switch macro wrapper, based on MN10300 definitions. |
2 | * |
3 | * It should be possible to use these on really simple architectures, |
4 | * but it serves more as a starting point for new ports. |
5 | * |
6 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
7 | * Written by David Howells (dhowells@redhat.com) |
8 | * |
9 | * This program is free software; you can redistribute it and/or |
10 | * modify it under the terms of the GNU General Public Licence |
11 | * as published by the Free Software Foundation; either version |
12 | * 2 of the Licence, or (at your option) any later version. |
13 | */ |
14 | #ifndef __ASM_GENERIC_SWITCH_TO_H |
15 | #define __ASM_GENERIC_SWITCH_TO_H |
16 | |
17 | #include <linux/thread_info.h> |
18 | |
19 | /* |
20 | * Context switching is now performed out-of-line in switch_to.S |
21 | */ |
22 | extern struct task_struct *__switch_to(struct task_struct *, |
23 | struct task_struct *); |
24 | |
25 | #define switch_to(prev, next, last) \ |
26 | do { \ |
27 | ((last) = __switch_to((prev), (next))); \ |
28 | } while (0) |
29 | |
30 | #endif /* __ASM_GENERIC_SWITCH_TO_H */ |
31 |
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