/* Turn on VBL interrupt */ MGA_WRITE( MGA_IEN, MGA_VLINEIEN ); 
DRM_INIT_WAITQUEUE( &dev_priv->fence_queue );  /* Turn on vertical blank interrupt and soft trap interrupt. */ MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); 
void mga_driver_irq_postinstall( drm_device_t *dev ) {  	drm_mga_private_t *dev_priv = 	   (drm_mga_private_t *)dev->dev_private;	/* Turn on VBL interrupt */   	MGA_WRITE( MGA_IEN, MGA_VLINEIEN );}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/6795c985a648d1e90b367cc1387c18205ecca4b8/mga_irq.c/buggy/drivers/char/drm/mga_irq.c