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_t) (void *data, async_cookie_t cookie);
21 struct list_head pending;
22 unsigned registered:1;
26 * domain participates in global async_synchronize_full
28 #define ASYNC_DOMAIN(_name) \
29 struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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
36 #define ASYNC_DOMAIN_EXCLUSIVE(_name) \
37 struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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);