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Commit | Line | Data |
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7ad530bf | 1 | /* |
e912c881 | 2 | * Sync File validation framework and debug infomation |
7ad530bf EG |
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_H | |
14 | #define _LINUX_SYNC_H | |
15 | ||
7ad530bf EG |
16 | #include <linux/list.h> |
17 | #include <linux/spinlock.h> | |
0f0d8406 | 18 | #include <linux/fence.h> |
7ad530bf | 19 | |
460bfc41 GP |
20 | #include <linux/sync_file.h> |
21 | #include <uapi/linux/sync_file.h> | |
64907b94 | 22 | |
7ad530bf EG |
23 | /** |
24 | * struct sync_timeline - sync object | |
c5b86b74 | 25 | * @kref: reference count on fence. |
7ad530bf | 26 | * @name: name of the sync_timeline. Useful for debugging |
7ad530bf | 27 | * @child_list_head: list of children sync_pts for this sync_timeline |
342952d3 | 28 | * @child_list_lock: lock protecting @child_list_head and fence.status |
7ad530bf | 29 | * @active_list_head: list of active (unsignaled/errored) sync_pts |
af7582f2 | 30 | * @sync_timeline_list: membership in global sync_timeline_list |
7ad530bf EG |
31 | */ |
32 | struct sync_timeline { | |
c5b86b74 | 33 | struct kref kref; |
7ad530bf EG |
34 | char name[32]; |
35 | ||
36 | /* protected by child_list_lock */ | |
731c7d3a LT |
37 | u64 context; |
38 | int value; | |
7ad530bf EG |
39 | |
40 | struct list_head child_list_head; | |
41 | spinlock_t child_list_lock; | |
42 | ||
43 | struct list_head active_list_head; | |
af7582f2 EG |
44 | |
45 | struct list_head sync_timeline_list; | |
7ad530bf EG |
46 | }; |
47 | ||
b55b54b5 | 48 | static inline struct sync_timeline *fence_parent(struct fence *fence) |
0f0d8406 | 49 | { |
b55b54b5 | 50 | return container_of(fence->lock, struct sync_timeline, |
0f0d8406 ML |
51 | child_list_lock); |
52 | } | |
97a84843 | 53 | |
0431b906 GP |
54 | /** |
55 | * struct sync_pt - sync_pt object | |
56 | * @base: base fence object | |
57 | * @child_list: sync timeline child's list | |
58 | * @active_list: sync timeline active child's list | |
59 | */ | |
60 | struct sync_pt { | |
61 | struct fence base; | |
62 | struct list_head child_list; | |
63 | struct list_head active_list; | |
64 | }; | |
65 | ||
b1f65604 | 66 | #ifdef CONFIG_SW_SYNC |
0f0d8406 | 67 | |
1867a23b GP |
68 | extern const struct file_operations sw_sync_debugfs_fops; |
69 | ||
d30649a8 JP |
70 | void sync_timeline_debug_add(struct sync_timeline *obj); |
71 | void sync_timeline_debug_remove(struct sync_timeline *obj); | |
d7fdb0ae GP |
72 | void sync_file_debug_add(struct sync_file *fence); |
73 | void sync_file_debug_remove(struct sync_file *fence); | |
d30649a8 | 74 | void sync_dump(void); |
0f0d8406 ML |
75 | |
76 | #else | |
77 | # define sync_timeline_debug_add(obj) | |
78 | # define sync_timeline_debug_remove(obj) | |
d7fdb0ae GP |
79 | # define sync_file_debug_add(fence) |
80 | # define sync_file_debug_remove(fence) | |
0f0d8406 ML |
81 | # define sync_dump() |
82 | #endif | |
0f0d8406 | 83 | |
7ad530bf | 84 | #endif /* _LINUX_SYNC_H */ |