48 	if (dev->driver->firstopen) {  in drm_setup()
49 		ret = dev->driver->firstopen(dev);  in drm_setup()
54 	atomic_set(&dev->ioctl_count, 0);  in drm_setup()
55 	atomic_set(&dev->vma_count, 0);  in drm_setup()
59 		dev->buf_use = 0;  in drm_setup()
60 		atomic_set(&dev->buf_alloc, 0);  in drm_setup()
68 	 * FIXME Linux<->FreeBSD: counter incremented in drm_open() and  in drm_setup()
72 	for (i = 0; i < ARRAY_SIZE(dev->counts); i++)  in drm_setup()
73 		atomic_set(&dev->counts[i], 0);  in drm_setup()
76 	dev->sigdata.lock = NULL;  in drm_setup()
78 	dev->context_flag = 0;  in drm_setup()
79 	dev->interrupt_flag = 0;  in drm_setup()
80 	dev->dma_flag = 0;  in drm_setup()
81 	dev->last_context = 0;  in drm_setup()
82 	dev->last_switch = 0;  in drm_setup()
83 	dev->last_checked = 0;  in drm_setup()
84 	DRM_INIT_WAITQUEUE(&dev->context_wait);  in drm_setup()
85 	dev->if_version = 0;  in drm_setup()
88 	dev->ctx_start = 0;  in drm_setup()
89 	dev->lck_start = 0;  in drm_setup()
91 	dev->buf_async = NULL;  in drm_setup()
92 	DRM_INIT_WAITQUEUE(&dev->buf_readers);  in drm_setup()
93 	DRM_INIT_WAITQUEUE(&dev->buf_writers);  in drm_setup()
99 	 * The kernel's context could be created here, but is now created  in drm_setup()
100 	 * in drm_dma_enqueue.  This is more resource-efficient for  in drm_setup()
127 	minor = kdev->si_drv1;  in drm_open()
131 	if (!(dev = minor->dev))  in drm_open()
137 	 * FIXME Linux<->FreeBSD: On Linux, counter updated outside  in drm_open()
140 	if (!dev->open_count++)  in drm_open()
146 		return (-retcode);  in drm_open()
148 	atomic_inc(&dev->counts[_DRM_STAT_OPENS]);  in drm_open()
158 	device_unbusy(dev->dev);  in drm_open()
159 	dev->open_count--;  in drm_open()
161 	return -retcode;  in drm_open()
183 		return -EBUSY;	/* No exclusive opens */  in drm_open_helper()
184 	if (dev->switch_power_state != DRM_SWITCH_POWER_ON)  in drm_open_helper()
185 		return -EINVAL;  in drm_open_helper()
191 		return -ENOMEM;  in drm_open_helper()
193 	priv->uid = p->td_ucred->cr_svuid;  in drm_open_helper()
194 	priv->pid = p->td_proc->p_pid;  in drm_open_helper()
195 	priv->minor = kdev->si_drv1;  in drm_open_helper()
196 	priv->ioctl_count = 0;  in drm_open_helper()
198 	priv->authenticated = DRM_SUSER(p);  in drm_open_helper()
199 	priv->lock_count = 0;  in drm_open_helper()
201 	INIT_LIST_HEAD(&priv->lhead);  in drm_open_helper()
202 	INIT_LIST_HEAD(&priv->fbs);  in drm_open_helper()
203 	INIT_LIST_HEAD(&priv->event_list);  in drm_open_helper()
204 	priv->event_space = 4096; /* set aside 4k for event buffer */  in drm_open_helper()
206 	if (dev->driver->driver_features & DRIVER_GEM)  in drm_open_helper()
211 		drm_prime_init_file_private(&priv->prime);  in drm_open_helper()
214 	if (dev->driver->open) {  in drm_open_helper()
215 		ret = dev->driver->open(dev, priv);  in drm_open_helper()
221 	/* if there is no current master make this fd it */  in drm_open_helper()
223 	if (!priv->minor->master) {  in drm_open_helper()
224 		/* create a new master */  in drm_open_helper()
225 		priv->minor->master = drm_master_create(priv->minor);  in drm_open_helper()
226 		if (!priv->minor->master) {  in drm_open_helper()
228 			ret = -ENOMEM;  in drm_open_helper()
232 		priv->is_master = 1;  in drm_open_helper()
234 		priv->master = drm_master_get(priv->minor->master);  in drm_open_helper()
236 		priv->authenticated = 1;  in drm_open_helper()
239 		if (dev->driver->master_create) {  in drm_open_helper()
240 			ret = dev->driver->master_create(dev, priv->master);  in drm_open_helper()
244 				drm_master_put(&priv->minor->master);  in drm_open_helper()
245 				drm_master_put(&priv->master);  in drm_open_helper()
251 		if (dev->driver->master_set) {  in drm_open_helper()
252 			ret = dev->driver->master_set(dev, priv, true);  in drm_open_helper()
255 				drm_master_put(&priv->minor->master);  in drm_open_helper()
256 				drm_master_put(&priv->master);  in drm_open_helper()
263 		/* get a reference to the master */  in drm_open_helper()
264 		priv->master = drm_master_get(priv->minor->master);  in drm_open_helper()
269 	list_add(&priv->lhead, &dev->filelist);  in drm_open_helper()
272 	device_busy(dev->dev);  in drm_open_helper()
289 			  file_priv, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));  in drm_master_release()
290 		drm_lock_free(&file_priv->master->lock,  in drm_master_release()
291 			      _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));  in drm_master_release()
297 	struct drm_device *dev = file_priv->minor->dev;  in drm_events_release()
302 	DRM_SPINLOCK_IRQSAVE(&dev->event_lock, flags);  in drm_events_release()
305 	list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)  in drm_events_release()
306 		if (v->base.file_priv == file_priv) {  in drm_events_release()
307 			list_del(&v->base.link);  in drm_events_release()
308 			drm_vblank_put(dev, v->pipe);  in drm_events_release()
309 			v->base.destroy(&v->base);  in drm_events_release()
313 	list_for_each_entry_safe(e, et, &file_priv->event_list, link)  in drm_events_release()
314 		e->destroy(e);  in drm_events_release()
316 	DRM_SPINUNLOCK_IRQRESTORE(&dev->event_lock, flags);  in drm_events_release()
326  * If the hardware lock is held then free it, and take it again for the kernel
334 	struct drm_device *dev = file_priv->minor->dev;  in drm_release()
338 	DRM_DEBUG("open_count = %d\n", dev->open_count);  in drm_release()
340 	if (dev->driver->preclose)  in drm_release()
341 		dev->driver->preclose(dev, file_priv);  in drm_release()
349 		  (long)file_priv->minor->device,  in drm_release()
350 		  dev->open_count);  in drm_release()
354 	if (file_priv->magic)  in drm_release()
355 		(void) drm_remove_magic(file_priv->master, file_priv->magic);  in drm_release()
357 	/* if the master has gone away we can't do anything with the lock */  in drm_release()
358 	if (file_priv->minor->master)  in drm_release()
366 	seldrain(&file_priv->event_poll);  in drm_release()
368 	if (dev->driver->driver_features & DRIVER_MODESET)  in drm_release()
371 	if (dev->driver->driver_features & DRIVER_GEM)  in drm_release()
375 	mutex_lock(&dev->ctxlist_mutex);  in drm_release()
376 	if (!list_empty(&dev->ctxlist)) {  in drm_release()
379 		list_for_each_entry_safe(pos, n, &dev->ctxlist, head) {  in drm_release()
380 			if (pos->tag == file_priv &&  in drm_release()
381 			    pos->handle != DRM_KERNEL_CONTEXT) {  in drm_release()
382 				if (dev->driver->context_dtor)  in drm_release()
383 					dev->driver->context_dtor(dev,  in drm_release()
384 								  pos->handle);  in drm_release()
386 				drm_ctxbitmap_free(dev, pos->handle);  in drm_release()
388 				list_del(&pos->head);  in drm_release()
390 				--dev->ctx_count;  in drm_release()
394 	mutex_unlock(&dev->ctxlist_mutex);  in drm_release()
399 	if (file_priv->is_master) {  in drm_release()
400 		struct drm_master *master = file_priv->master;  in drm_release()  local
402 		list_for_each_entry(temp, &dev->filelist, lhead) {  in drm_release()
403 			if ((temp->master == file_priv->master) &&  in drm_release()
405 				temp->authenticated = 0;  in drm_release()
409 		 * Since the master is disappearing, so is the  in drm_release()
413 		if (master->lock.hw_lock) {  in drm_release()
414 			if (dev->sigdata.lock == master->lock.hw_lock)  in drm_release()
415 				dev->sigdata.lock = NULL;  in drm_release()
416 			master->lock.hw_lock = NULL;  in drm_release()
417 			master->lock.file_priv = NULL;  in drm_release()
418 			DRM_WAKEUP_INT(&master->lock.lock_queue);  in drm_release()
421 		if (file_priv->minor->master == file_priv->master) {  in drm_release()
423 			if (dev->driver->master_drop)  in drm_release()
424 				dev->driver->master_drop(dev, file_priv, true);  in drm_release()
425 			drm_master_put(&file_priv->minor->master);  in drm_release()
430 	drm_master_put(&file_priv->master);  in drm_release()
431 	file_priv->is_master = 0;  in drm_release()
432 	list_del(&file_priv->lhead);  in drm_release()
435 	if (dev->driver->postclose)  in drm_release()
436 		dev->driver->postclose(dev, file_priv);  in drm_release()
440 		drm_prime_destroy_file_private(&file_priv->prime);  in drm_release()
449 	atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);  in drm_release()
450 	device_unbusy(dev->dev);  in drm_release()
451 	if (!--dev->open_count) {  in drm_release()
452 		if (atomic_read(&dev->ioctl_count)) {  in drm_release()
454 				  atomic_read(&dev->ioctl_count));  in drm_release()
470 	/* DRM_SPINLOCK_IRQSAVE(&dev->event_lock, flags); */  in drm_dequeue_event()
473 	if (list_empty(&file_priv->event_list))  in drm_dequeue_event()
475 	e = list_first_entry(&file_priv->event_list,  in drm_dequeue_event()
477 	if (e->event->length > uio->uio_resid)  in drm_dequeue_event()
480 	file_priv->event_space += e->event->length;  in drm_dequeue_event()
481 	list_del(&e->link);  in drm_dequeue_event()
486 	/* DRM_SPINUNLOCK_IRQRESTORE(&dev->event_lock, flags); */  in drm_dequeue_event()
505 	mtx_lock(&dev->event_lock);  in drm_read()
506 	while (list_empty(&file_priv->event_list)) {  in drm_read()
511 		error = msleep(&file_priv->event_space, &dev->event_lock,  in drm_read()
518 		mtx_unlock(&dev->event_lock);  in drm_read()
519 		error = uiomove(e->event, e->event->length, uio);  in drm_read()
520 		CTR3(KTR_DRM, "drm_event_dequeued %d %d %d", curproc->p_pid,  in drm_read()
521 		    e->event->type, e->event->length);  in drm_read()
523 		e->destroy(e);  in drm_read()
526 		mtx_lock(&dev->event_lock);  in drm_read()
530 	mtx_unlock(&dev->event_lock);  in drm_read()
541 	file_priv = e->file_priv;  in drm_event_wakeup()
542 	dev = file_priv->minor->dev;  in drm_event_wakeup()
543 	mtx_assert(&dev->event_lock, MA_OWNED);  in drm_event_wakeup()
545 	wakeup(&file_priv->event_space);  in drm_event_wakeup()
546 	selwakeup(&file_priv->event_poll);  in drm_event_wakeup()
565 	mtx_lock(&dev->event_lock);  in drm_poll()
567 		if (list_empty(&file_priv->event_list)) {  in drm_poll()
569 			selrecord(td, &file_priv->event_poll);  in drm_poll()
575 	mtx_unlock(&dev->event_lock);  in drm_poll()
587 	if (dev->drm_ttm_bdev != NULL) {  in drm_mmap_single()
588 		return (-ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size,  in drm_mmap_single()
590 	} else if ((dev->driver->driver_features & DRIVER_GEM) != 0) {  in drm_mmap_single()
591 		return (-drm_gem_mmap_single(dev, offset, size, obj_res, nprot));  in drm_mmap_single()