118 int drm_irq_install(struct drm_device *dev)  in drm_irq_install()  argument
120 int drm_irq_install(struct drm_device *dev, int irq)  in drm_irq_install()
132 	if (!dev->dev_private)  in drm_irq_install()
135 	if (dev->irq_enabled)  in drm_irq_install()
137 	dev->irq_enabled = true;  in drm_irq_install()
144 	if (dev->driver->irq_preinstall)  in drm_irq_install()
145 		dev->driver->irq_preinstall(dev);  in drm_irq_install()
148 	if (dev->pdev)  in drm_irq_install()
152 	ret = (*dev->driver->request_irq)(dev, sh_flags);  in drm_irq_install()
154 	ret = request_irq(irq, dev->driver->irq_handler,  in drm_irq_install()
155 			  sh_flags, dev->driver->name, dev);  in drm_irq_install()
159 		dev->irq_enabled = false;  in drm_irq_install()
164 	if (dev->driver->irq_postinstall)  in drm_irq_install()
165 		ret = dev->driver->irq_postinstall(dev);  in drm_irq_install()
168 		dev->irq_enabled = false;  in drm_irq_install()
169 		if (drm_core_check_feature(dev, DRIVER_LEGACY))  in drm_irq_install()
170 			vga_client_register(dev->pdev, NULL, NULL, NULL);  in drm_irq_install()
172 		(*dev->driver->free_irq)(dev);  in drm_irq_install()
174 		free_irq(irq, dev);  in drm_irq_install()
178 		dev->irq = irq;  in drm_irq_install()
202 int drm_irq_uninstall(struct drm_device *dev)  in drm_irq_uninstall()  argument
208 	irq_enabled = dev->irq_enabled;  in drm_irq_uninstall()
209 	dev->irq_enabled = false;  in drm_irq_uninstall()
217 	if (dev->num_crtcs) {  in drm_irq_uninstall()
218 		spin_lock_irqsave(&dev->event_lock, irqflags);  in drm_irq_uninstall()
219 		for (i = 0; i < dev->num_crtcs; i++) {  in drm_irq_uninstall()
220 			struct drm_vblank_crtc *vblank = &dev->vblank[i];  in drm_irq_uninstall()
225 			WARN_ON(drm_core_check_feature(dev, DRIVER_MODESET));  in drm_irq_uninstall()
227 			drm_vblank_disable_and_save(dev, i);  in drm_irq_uninstall()
230 			    &dev->event_lock);  in drm_irq_uninstall()
235 		spin_unlock_irqrestore(&dev->event_lock, irqflags);  in drm_irq_uninstall()
241 	DRM_DEBUG("irq=%d\n", dev->irq);  in drm_irq_uninstall()
243 	if (drm_core_check_feature(dev, DRIVER_LEGACY))  in drm_irq_uninstall()
244 		vga_client_register(dev->pdev, NULL, NULL, NULL);  in drm_irq_uninstall()
246 	if (dev->driver->irq_uninstall)  in drm_irq_uninstall()
247 		dev->driver->irq_uninstall(dev);  in drm_irq_uninstall()
250 	(*dev->driver->free_irq)(dev);  in drm_irq_uninstall()
252 	free_irq(dev->irq, dev);  in drm_irq_uninstall()
260 int drm_legacy_irq_control(struct drm_device *dev, void *data,  in drm_legacy_irq_control()  argument
270 	if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))  in drm_legacy_irq_control()
272 	if (!drm_core_check_feature(dev, DRIVER_LEGACY))  in drm_legacy_irq_control()
275 	if (WARN_ON(!dev->pdev))  in drm_legacy_irq_control()
283 		irq = dev->pdev->irq;  in drm_legacy_irq_control()
286 		if (dev->if_version < DRM_IF_VERSION(1, 2) &&  in drm_legacy_irq_control()
289 		mutex_lock(&dev->struct_mutex);  in drm_legacy_irq_control()
291 		ret = drm_irq_install(dev);  in drm_legacy_irq_control()
293 		ret = drm_irq_install(dev, irq);  in drm_legacy_irq_control()
295 		mutex_unlock(&dev->struct_mutex);  in drm_legacy_irq_control()
299 		mutex_lock(&dev->struct_mutex);  in drm_legacy_irq_control()
300 		ret = drm_irq_uninstall(dev);  in drm_legacy_irq_control()
301 		mutex_unlock(&dev->struct_mutex);  in drm_legacy_irq_control()