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1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
---|---|
2 | /* Generic task switch macro wrapper. |
3 | * |
4 | * It should be possible to use these on really simple architectures, |
5 | * but it serves more as a starting point for new ports. |
6 | * |
7 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
8 | * Written by David Howells (dhowells@redhat.com) |
9 | */ |
10 | #ifndef __ASM_GENERIC_SWITCH_TO_H |
11 | #define __ASM_GENERIC_SWITCH_TO_H |
12 | |
13 | #include <linux/thread_info.h> |
14 | |
15 | /* |
16 | * Context switching is now performed out-of-line in switch_to.S |
17 | */ |
18 | extern struct task_struct *__switch_to(struct task_struct *, |
19 | struct task_struct *); |
20 | |
21 | #define switch_to(prev, next, last) \ |
22 | do { \ |
23 | ((last) = __switch_to((prev), (next))); \ |
24 | } while (0) |
25 | |
26 | #endif /* __ASM_GENERIC_SWITCH_TO_H */ |
27 |
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