2 * Sync File validation framework and debug infomation
4 * Copyright (C) 2012 Google, Inc.
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.
16 #include <linux/list.h>
17 #include <linux/rbtree.h>
18 #include <linux/spinlock.h>
19 #include <linux/dma-fence.h>
21 #include <linux/sync_file.h>
22 #include <uapi/linux/sync_file.h>
25 * struct sync_timeline - sync object
26 * @kref: reference count on fence.
27 * @name: name of the sync_timeline. Useful for debugging
28 * @lock: lock protecting @pt_list and @value
29 * @pt_tree: rbtree of active (unsignaled/errored) sync_pts
30 * @pt_list: list of active (unsignaled/errored) sync_pts
31 * @sync_timeline_list: membership in global sync_timeline_list
33 struct sync_timeline {
37 /* protected by lock */
41 struct rb_root pt_tree;
42 struct list_head pt_list;
45 struct list_head sync_timeline_list;
48 static inline struct sync_timeline *dma_fence_parent(struct dma_fence *fence)
50 return container_of(fence->lock, struct sync_timeline, lock);
54 * struct sync_pt - sync_pt object
55 * @base: base fence object
56 * @link: link on the sync timeline's list
57 * @node: node in the sync timeline's tree
60 struct dma_fence base;
61 struct list_head link;
65 extern const struct file_operations sw_sync_debugfs_fops;
67 void sync_timeline_debug_add(struct sync_timeline *obj);
68 void sync_timeline_debug_remove(struct sync_timeline *obj);
69 void sync_file_debug_add(struct sync_file *fence);
70 void sync_file_debug_remove(struct sync_file *fence);
72 #endif /* _LINUX_SYNC_H */