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72 lines
1.8 KiB
72 lines
1.8 KiB
/* |
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* Sync File validation framework and debug infomation |
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* |
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* Copyright (C) 2012 Google, Inc. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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*/ |
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#ifndef _LINUX_SYNC_H |
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#define _LINUX_SYNC_H |
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#include <linux/list.h> |
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#include <linux/rbtree.h> |
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#include <linux/spinlock.h> |
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#include <linux/dma-fence.h> |
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#include <linux/sync_file.h> |
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#include <uapi/linux/sync_file.h> |
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/** |
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* struct sync_timeline - sync object |
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* @kref: reference count on fence. |
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* @name: name of the sync_timeline. Useful for debugging |
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* @lock: lock protecting @pt_list and @value |
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* @pt_tree: rbtree of active (unsignaled/errored) sync_pts |
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* @pt_list: list of active (unsignaled/errored) sync_pts |
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* @sync_timeline_list: membership in global sync_timeline_list |
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*/ |
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struct sync_timeline { |
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struct kref kref; |
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char name[32]; |
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/* protected by lock */ |
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u64 context; |
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int value; |
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struct rb_root pt_tree; |
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struct list_head pt_list; |
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spinlock_t lock; |
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struct list_head sync_timeline_list; |
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}; |
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static inline struct sync_timeline *dma_fence_parent(struct dma_fence *fence) |
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{ |
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return container_of(fence->lock, struct sync_timeline, lock); |
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} |
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/** |
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* struct sync_pt - sync_pt object |
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* @base: base fence object |
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* @link: link on the sync timeline's list |
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* @node: node in the sync timeline's tree |
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*/ |
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struct sync_pt { |
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struct dma_fence base; |
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struct list_head link; |
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struct rb_node node; |
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}; |
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extern const struct file_operations sw_sync_debugfs_fops; |
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void sync_timeline_debug_add(struct sync_timeline *obj); |
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void sync_timeline_debug_remove(struct sync_timeline *obj); |
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void sync_file_debug_add(struct sync_file *fence); |
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void sync_file_debug_remove(struct sync_file *fence); |
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#endif /* _LINUX_SYNC_H */
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