/* * 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/dma-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 *dma_fence_parent(struct dma_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 dma_fence base; struct list_head child_list; struct list_head active_list; }; #ifdef [31mCONFIG_SW_SYNC[0m 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 */ |