1/*
2 * include/linux/sw_sync.h
3 *
4 * Copyright (C) 2012 Google, Inc.
5 *
6 * This software is licensed under the terms of the GNU General Public
7 * License version 2, as published by the Free Software Foundation, and
8 * may be copied, distributed, and modified under those terms.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 */
16
17#ifndef _LINUX_SW_SYNC_H
18#define _LINUX_SW_SYNC_H
19
20#include <linux/types.h>
21
22#ifdef __KERNEL__
23
24#include <linux/sync.h>
25
26struct sw_sync_timeline {
27	struct	sync_timeline	obj;
28
29	u32			value;
30};
31
32struct sw_sync_pt {
33	struct sync_pt		pt;
34
35	u32			value;
36};
37
38struct sw_sync_timeline *sw_sync_timeline_create(const char *name);
39void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc);
40
41struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value);
42
43#endif /* __KERNEL __ */
44
45struct sw_sync_create_fence_data {
46	__u32	value;
47	char	name[32];
48	__s32	fence; /* fd of new fence */
49};
50
51#define SW_SYNC_IOC_MAGIC	'W'
52
53#define SW_SYNC_IOC_CREATE_FENCE	_IOWR(SW_SYNC_IOC_MAGIC, 0,\
54		struct sw_sync_create_fence_data)
55#define SW_SYNC_IOC_INC			_IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
56
57
58#endif /* _LINUX_SW_SYNC_H */
59