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d4cab38e GP |
1 | /* |
2 | * include/linux/sync_file.h | |
3 | * | |
4 | * Copyright (C) 2012 Google, Inc. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | */ | |
12 | ||
13 | #ifndef _LINUX_SYNC_FILE_H | |
14 | #define _LINUX_SYNC_FILE_H | |
15 | ||
16 | #include <linux/types.h> | |
17 | #include <linux/kref.h> | |
18 | #include <linux/ktime.h> | |
19 | #include <linux/list.h> | |
20 | #include <linux/spinlock.h> | |
21 | #include <linux/fence.h> | |
22 | ||
23 | struct sync_file_cb { | |
24 | struct fence_cb cb; | |
25 | struct fence *fence; | |
26 | struct sync_file *sync_file; | |
27 | }; | |
28 | ||
29 | /** | |
30 | * struct sync_file - sync file to export to the userspace | |
31 | * @file: file representing this fence | |
32 | * @kref: reference count on fence. | |
33 | * @name: name of sync_file. Useful for debugging | |
34 | * @sync_file_list: membership in global file list | |
c240a714 | 35 | * @num_fences: number of sync_pts in the fence |
d4cab38e GP |
36 | * @wq: wait queue for fence signaling |
37 | * @status: 0: signaled, >0:active, <0: error | |
38 | * @cbs: sync_pts callback information | |
39 | */ | |
40 | struct sync_file { | |
41 | struct file *file; | |
42 | struct kref kref; | |
43 | char name[32]; | |
44 | #ifdef CONFIG_DEBUG_FS | |
45 | struct list_head sync_file_list; | |
46 | #endif | |
47 | int num_fences; | |
48 | ||
49 | wait_queue_head_t wq; | |
50 | atomic_t status; | |
51 | ||
52 | struct sync_file_cb cbs[]; | |
53 | }; | |
54 | ||
55 | struct sync_file *sync_file_create(struct fence *fence); | |
56 | ||
57 | #endif /* _LINUX_SYNC_H */ |