drm - Fix kldload issue
[dragonfly.git] / sys / kern / dsched / bfq / wf2q.h
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1/*
2 * Copyright (c) 2011 The DragonFly Project. All rights reserved.
3 *
4 * This code is derived from software contributed to The DragonFly Project
5 * by Brills Peng <brillsp@gmail.com>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
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35#ifndef _DSCHED_BFQ_WF2Q_H_
36#define _DSCHED_BFQ_WF2Q_H_
37
38#include <sys/tree.h>
39
aabeb187 40/* struct bfq_thread_io is defined in bfq.h */
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41struct bfq_thread_io;
42
43RB_HEAD(wf2q_augtree_t, bfq_thread_io);
44
45struct wf2q_t {
46 struct wf2q_augtree_t wf2q_augtree;
47 int wf2q_virtual_time;
48 int wf2q_tdio_count;
49};
50
51#ifndef _DSCHED_BFQ_H_
52#include <kern/dsched/bfq/bfq.h>
53#endif
54
55void wf2q_init(struct wf2q_t *pwf2q);
56void wf2q_insert_thread_io(struct wf2q_t *wf2q, struct bfq_thread_io *tdio);
57void wf2q_remove_thread_io(struct wf2q_t *wf2q, struct bfq_thread_io *tdio);
58void wf2q_update_vd(struct bfq_thread_io *tdio, int received_service);
59struct bfq_thread_io *wf2q_get_next_thread_io(struct wf2q_t *wf2q);
60void wf2q_inc_tot_service(struct wf2q_t *wf2q, int amount);
61
07077f64 62#endif /* !_DSCHED_BFQ_WF2Q_H_ */