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1 | /* |
2 | * async.h: Asynchronous function calls for boot performance |
3 | * |
4 | * (C) Copyright 2009 Intel Corporation |
5 | * Author: Arjan van de Ven <arjan@linux.intel.com> |
6 | * |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License |
9 | * as published by the Free Software Foundation; version 2 |
10 | * of the License. |
11 | */ |
12 | #ifndef __ASYNC_H__ |
13 | #define __ASYNC_H__ |
14 | |
15 | #include <linux/types.h> |
16 | #include <linux/list.h> |
17 | |
18 | typedef u64 async_cookie_t; |
19 | typedef void (*async_func_t) (void *data, async_cookie_t cookie); |
20 | struct async_domain { |
21 | struct list_head pending; |
22 | unsigned registered:1; |
23 | }; |
24 | |
25 | /* |
26 | * domain participates in global async_synchronize_full |
27 | */ |
28 | #define ASYNC_DOMAIN(_name) \ |
29 | struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \ |
30 | .registered = 1 } |
31 | |
32 | /* |
33 | * domain is free to go out of scope as soon as all pending work is |
34 | * complete, this domain does not participate in async_synchronize_full |
35 | */ |
36 | #define ASYNC_DOMAIN_EXCLUSIVE(_name) \ |
37 | struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \ |
38 | .registered = 0 } |
39 | |
40 | extern async_cookie_t async_schedule(async_func_t func, void *data); |
41 | extern async_cookie_t async_schedule_domain(async_func_t func, void *data, |
42 | struct async_domain *domain); |
43 | void async_unregister_domain(struct async_domain *domain); |
44 | extern void async_synchronize_full(void); |
45 | extern void async_synchronize_full_domain(struct async_domain *domain); |
46 | extern void async_synchronize_cookie(async_cookie_t cookie); |
47 | extern void async_synchronize_cookie_domain(async_cookie_t cookie, |
48 | struct async_domain *domain); |
49 | extern bool current_is_async(void); |
50 | #endif |
51 |
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