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