49 static int drm_setup(struct drm_device * dev)  in drm_setup()  argument
53 	if (dev->driver->firstopen &&  in drm_setup()
54 	    !drm_core_check_feature(dev, DRIVER_MODESET)) {  in drm_setup()
55 		ret = dev->driver->firstopen(dev);  in drm_setup()
60 	ret = drm_legacy_dma_setup(dev);  in drm_setup()
82 	struct drm_device *dev;  in drm_open()  local
91 	dev = minor->dev;  in drm_open()
92 	if (!dev->open_count++)  in drm_open()
96 	filp->f_mapping = dev->anon_inode->i_mapping;  in drm_open()
102 		retcode = drm_setup(dev);  in drm_open()
109 	dev->open_count--;  in drm_open()
140 	struct drm_device *dev = minor->dev;  in drm_open_helper()  local
148 …if (dev->switch_power_state != DRM_SWITCH_POWER_ON && dev->switch_power_state != DRM_SWITCH_POWER_…  in drm_open_helper()
174 	if (drm_core_check_feature(dev, DRIVER_GEM))  in drm_open_helper()
175 		drm_gem_open(dev, priv);  in drm_open_helper()
177 	if (drm_core_check_feature(dev, DRIVER_PRIME))  in drm_open_helper()
180 	if (dev->driver->open) {  in drm_open_helper()
181 		ret = dev->driver->open(dev, priv);  in drm_open_helper()
188 	mutex_lock(&dev->master_mutex);  in drm_open_helper()
202 		if (dev->driver->master_create) {  in drm_open_helper()
203 			ret = dev->driver->master_create(dev, priv->master);  in drm_open_helper()
211 		if (dev->driver->master_set) {  in drm_open_helper()
212 			ret = dev->driver->master_set(dev, priv, true);  in drm_open_helper()
224 	mutex_unlock(&dev->master_mutex);  in drm_open_helper()
226 	mutex_lock(&dev->struct_mutex);  in drm_open_helper()
227 	list_add(&priv->lhead, &dev->filelist);  in drm_open_helper()
228 	mutex_unlock(&dev->struct_mutex);  in drm_open_helper()
234 	if (!dev->hose) {  in drm_open_helper()
238 			dev->hose = pci_dev->sysdata;  in drm_open_helper()
241 		if (!dev->hose) {  in drm_open_helper()
245 				dev->hose = b->sysdata;  in drm_open_helper()
253 	mutex_unlock(&dev->master_mutex);  in drm_open_helper()
254 	if (dev->driver->postclose)  in drm_open_helper()
255 		dev->driver->postclose(dev, priv);  in drm_open_helper()
257 	if (drm_core_check_feature(dev, DRIVER_PRIME))  in drm_open_helper()
259 	if (drm_core_check_feature(dev, DRIVER_GEM))  in drm_open_helper()
260 		drm_gem_release(dev, priv);  in drm_open_helper()
267 static void drm_master_release(struct drm_device *dev, struct file *filp)  in drm_master_release()  argument
271 	if (drm_legacy_i_have_hw_lock(dev, file_priv)) {  in drm_master_release()
281 	struct drm_device *dev = file_priv->minor->dev;  in drm_events_release()  local
286 	spin_lock_irqsave(&dev->event_lock, flags);  in drm_events_release()
289 	list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)  in drm_events_release()
292 			drm_vblank_put(dev, v->pipe);  in drm_events_release()
302 	spin_unlock_irqrestore(&dev->event_lock, flags);  in drm_events_release()
310 static void drm_legacy_dev_reinit(struct drm_device *dev)  in drm_legacy_dev_reinit()  argument
312 	if (drm_core_check_feature(dev, DRIVER_MODESET))  in drm_legacy_dev_reinit()
315 	dev->sigdata.lock = NULL;  in drm_legacy_dev_reinit()
317 	dev->context_flag = 0;  in drm_legacy_dev_reinit()
318 	dev->last_context = 0;  in drm_legacy_dev_reinit()
319 	dev->if_version = 0;  in drm_legacy_dev_reinit()
331 int drm_lastclose(struct drm_device * dev)  in drm_lastclose()  argument
335 	if (dev->driver->lastclose)  in drm_lastclose()
336 		dev->driver->lastclose(dev);  in drm_lastclose()
339 	if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET))  in drm_lastclose()
340 		drm_irq_uninstall(dev);  in drm_lastclose()
342 	mutex_lock(&dev->struct_mutex);  in drm_lastclose()
344 	drm_agp_clear(dev);  in drm_lastclose()
346 	drm_legacy_sg_cleanup(dev);  in drm_lastclose()
347 	drm_legacy_vma_flush(dev);  in drm_lastclose()
348 	drm_legacy_dma_takedown(dev);  in drm_lastclose()
350 	mutex_unlock(&dev->struct_mutex);  in drm_lastclose()
352 	drm_legacy_dev_reinit(dev);  in drm_lastclose()
374 	struct drm_device *dev = minor->dev;  in drm_release()  local
379 	DRM_DEBUG("open_count = %d\n", dev->open_count);  in drm_release()
381 	mutex_lock(&dev->struct_mutex);  in drm_release()
383 	mutex_unlock(&dev->struct_mutex);  in drm_release()
385 	if (dev->driver->preclose)  in drm_release()
386 		dev->driver->preclose(dev, file_priv);  in drm_release()
395 		  dev->open_count);  in drm_release()
404 		drm_master_release(dev, filp);  in drm_release()
406 	if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))  in drm_release()
407 		drm_legacy_reclaim_buffers(dev, file_priv);  in drm_release()
411 	if (drm_core_check_feature(dev, DRIVER_MODESET))  in drm_release()
414 	if (drm_core_check_feature(dev, DRIVER_GEM))  in drm_release()
415 		drm_gem_release(dev, file_priv);  in drm_release()
417 	drm_legacy_ctxbitmap_flush(dev, file_priv);  in drm_release()
419 	mutex_lock(&dev->master_mutex);  in drm_release()
428 		mutex_lock(&dev->struct_mutex);  in drm_release()
430 			if (dev->sigdata.lock == master->lock.hw_lock)  in drm_release()
431 				dev->sigdata.lock = NULL;  in drm_release()
436 		mutex_unlock(&dev->struct_mutex);  in drm_release()
440 			if (dev->driver->master_drop)  in drm_release()
441 				dev->driver->master_drop(dev, file_priv, true);  in drm_release()
450 	mutex_unlock(&dev->master_mutex);  in drm_release()
452 	if (dev->driver->postclose)  in drm_release()
453 		dev->driver->postclose(dev, file_priv);  in drm_release()
456 	if (drm_core_check_feature(dev, DRIVER_PRIME))  in drm_release()
468 	if (!--dev->open_count) {  in drm_release()
469 		retcode = drm_lastclose(dev);  in drm_release()
470 		if (drm_device_is_unplugged(dev))  in drm_release()
471 			drm_put_dev(dev);  in drm_release()
485 	struct drm_device *dev = file_priv->minor->dev;  in drm_read()  local
491 	spin_lock_irq(&dev->event_lock);  in drm_read()
502 			spin_unlock_irq(&dev->event_lock);  in drm_read()
505 			spin_lock_irq(&dev->event_lock);  in drm_read()
531 	spin_unlock_irq(&dev->event_lock);  in drm_read()