31 static struct sync_file *sync_file_alloc(void)  in sync_file_alloc()
33 	struct sync_file *sync_file;  in sync_file_alloc()  local
35 	sync_file = kzalloc(sizeof(*sync_file), GFP_KERNEL);  in sync_file_alloc()
36 	if (!sync_file)  in sync_file_alloc()
39 	sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops,  in sync_file_alloc()
40 					     sync_file, 0);  in sync_file_alloc()
41 	if (IS_ERR(sync_file->file))  in sync_file_alloc()
44 	init_waitqueue_head(&sync_file->wq);  in sync_file_alloc()
46 	INIT_LIST_HEAD(&sync_file->cb.node);  in sync_file_alloc()
48 	return sync_file;  in sync_file_alloc()
51 	kfree(sync_file);  in sync_file_alloc()
57 	struct sync_file *sync_file;  in fence_check_cb_func()  local
59 	sync_file = container_of(cb, struct sync_file, cb);  in fence_check_cb_func()
61 	wake_up_all(&sync_file->wq);  in fence_check_cb_func()
73 struct sync_file *sync_file_create(struct dma_fence *fence)  in sync_file_create()
75 	struct sync_file *sync_file;  in sync_file_create()  local
77 	sync_file = sync_file_alloc();  in sync_file_create()
78 	if (!sync_file)  in sync_file_create()
81 	sync_file->fence = dma_fence_get(fence);  in sync_file_create()
83 	return sync_file;  in sync_file_create()
87 static struct sync_file *sync_file_fdget(int fd)  in sync_file_fdget()
113 	struct sync_file *sync_file;  in sync_file_get_fence()  local
116 	sync_file = sync_file_fdget(fd);  in sync_file_get_fence()
117 	if (!sync_file)  in sync_file_get_fence()
120 	fence = dma_fence_get(sync_file->fence);  in sync_file_get_fence()
121 	fput(sync_file->file);  in sync_file_get_fence()
140 char *sync_file_get_name(struct sync_file *sync_file, char *buf, int len)  in sync_file_get_name()  argument
142 	if (sync_file->user_name[0]) {  in sync_file_get_name()
143 		strlcpy(buf, sync_file->user_name, len);  in sync_file_get_name()
145 		struct dma_fence *fence = sync_file->fence;  in sync_file_get_name()
157 static int sync_file_set_fence(struct sync_file *sync_file,  in sync_file_set_fence()  argument
169 		sync_file->fence = fences[0];  in sync_file_set_fence()
178 		sync_file->fence = &array->base;  in sync_file_set_fence()
184 static struct dma_fence **get_fences(struct sync_file *sync_file,  in get_fences()  argument
187 	if (dma_fence_is_array(sync_file->fence)) {  in get_fences()
188 		struct dma_fence_array *array = to_dma_fence_array(sync_file->fence);  in get_fences()
195 	return &sync_file->fence;  in get_fences()
219 static struct sync_file *sync_file_merge(const char *name, struct sync_file *a,  in sync_file_merge()
220 					 struct sync_file *b)  in sync_file_merge()
222 	struct sync_file *sync_file;  in sync_file_merge()  local
226 	sync_file = sync_file_alloc();  in sync_file_merge()
227 	if (!sync_file)  in sync_file_merge()
289 	if (sync_file_set_fence(sync_file, fences, i) < 0) {  in sync_file_merge()
294 	strlcpy(sync_file->user_name, name, sizeof(sync_file->user_name));  in sync_file_merge()
295 	return sync_file;  in sync_file_merge()
298 	fput(sync_file->file);  in sync_file_merge()
305 	struct sync_file *sync_file = file->private_data;  in sync_file_release()  local
307 	if (test_bit(POLL_ENABLED, &sync_file->flags))  in sync_file_release()
308 		dma_fence_remove_callback(sync_file->fence, &sync_file->cb);  in sync_file_release()
309 	dma_fence_put(sync_file->fence);  in sync_file_release()
310 	kfree(sync_file);  in sync_file_release()
317 	struct sync_file *sync_file = file->private_data;  in sync_file_poll()  local
319 	poll_wait(file, &sync_file->wq, wait);  in sync_file_poll()
321 	if (list_empty(&sync_file->cb.node) &&  in sync_file_poll()
322 	    !test_and_set_bit(POLL_ENABLED, &sync_file->flags)) {  in sync_file_poll()
323 		if (dma_fence_add_callback(sync_file->fence, &sync_file->cb,  in sync_file_poll()
325 			wake_up_all(&sync_file->wq);  in sync_file_poll()
328 	return dma_fence_is_signaled(sync_file->fence) ? EPOLLIN : 0;  in sync_file_poll()
331 static long sync_file_ioctl_merge(struct sync_file *sync_file,  in sync_file_ioctl_merge()  argument
336 	struct sync_file *fence2, *fence3;  in sync_file_ioctl_merge()
359 	fence3 = sync_file_merge(data.name, sync_file, fence2);  in sync_file_ioctl_merge()
406 static long sync_file_ioctl_fence_info(struct sync_file *sync_file,  in sync_file_ioctl_fence_info()  argument
421 	fences = get_fences(sync_file, &num_fences);  in sync_file_ioctl_fence_info()
430 		info.status = dma_fence_is_signaled(sync_file->fence);  in sync_file_ioctl_fence_info()
456 	sync_file_get_name(sync_file, info.name, sizeof(info.name));  in sync_file_ioctl_fence_info()
473 	struct sync_file *sync_file = file->private_data;  in sync_file_ioctl()  local
477 		return sync_file_ioctl_merge(sync_file, arg);  in sync_file_ioctl()
480 		return sync_file_ioctl_fence_info(sync_file, arg);  in sync_file_ioctl()