extern void radeon_driver_irq_preinstall(struct drm_device * dev);
extern void radeon_driver_irq_postinstall(struct drm_device * dev);
extern void radeon_driver_irq_uninstall(struct drm_device * dev);
+extern void radeon_enable_interrupt(struct drm_device *dev);
extern int radeon_vblank_crtc_get(struct drm_device *dev);
extern int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value);