2 * async.h: Asynchronous function calls for boot performance
4 * (C) Copyright 2009 Intel Corporation
5 * Author: Arjan van de Ven <arjan@linux.intel.com>
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
15 #include <linux/types.h>
16 #include <linux/list.h>
18 typedef u64 async_cookie_t
;
19 typedef void (async_func_ptr
) (void *data
, async_cookie_t cookie
);
21 struct list_head node
;
22 struct list_head pending
;
23 unsigned registered
:1;
27 * domain participates in global async_synchronize_full
29 #define ASYNC_DOMAIN(_name) \
30 struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \
31 .pending = LIST_HEAD_INIT(_name.pending), \
35 * domain is free to go out of scope as soon as all pending work is
36 * complete, this domain does not participate in async_synchronize_full
38 #define ASYNC_DOMAIN_EXCLUSIVE(_name) \
39 struct async_domain _name = { .node = LIST_HEAD_INIT(_name.node), \
40 .pending = LIST_HEAD_INIT(_name.pending), \
43 extern async_cookie_t
async_schedule(async_func_ptr
*ptr
, void *data
);
44 extern async_cookie_t
async_schedule_domain(async_func_ptr
*ptr
, void *data
,
45 struct async_domain
*domain
);
46 void async_unregister_domain(struct async_domain
*domain
);
47 extern void async_synchronize_full(void);
48 extern void async_synchronize_full_domain(struct async_domain
*domain
);
49 extern void async_synchronize_cookie(async_cookie_t cookie
);
50 extern void async_synchronize_cookie_domain(async_cookie_t cookie
,
51 struct async_domain
*domain
);
52 extern bool current_is_async(void);
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