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51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
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* async.h: Asynchronous function calls for boot performance
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*
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* (C) Copyright 2009 Intel Corporation
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* Author: Arjan van de Ven <arjan@linux.intel.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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#ifndef __ASYNC_H__
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#define __ASYNC_H__
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#include <linux/types.h>
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#include <linux/list.h>
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typedef u64 async_cookie_t;
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typedef void (*async_func_t) (void *data, async_cookie_t cookie);
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struct async_domain {
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struct list_head pending;
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unsigned registered:1;
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};
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/*
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* domain participates in global async_synchronize_full
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*/
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#define ASYNC_DOMAIN(_name) \
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struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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.registered = 1 }
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/*
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* domain is free to go out of scope as soon as all pending work is
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* complete, this domain does not participate in async_synchronize_full
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*/
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#define ASYNC_DOMAIN_EXCLUSIVE(_name) \
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struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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.registered = 0 }
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extern async_cookie_t async_schedule(async_func_t func, void *data);
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extern async_cookie_t async_schedule_domain(async_func_t func, void *data,
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struct async_domain *domain);
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void async_unregister_domain(struct async_domain *domain);
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extern void async_synchronize_full(void);
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extern void async_synchronize_full_domain(struct async_domain *domain);
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extern void async_synchronize_cookie(async_cookie_t cookie);
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extern void async_synchronize_cookie_domain(async_cookie_t cookie,
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struct async_domain *domain);
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extern bool current_is_async(void);
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#endif
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