Exemple #1
0
/* Needs the lock as it touches the ring.
 */
int i830_irq_emit( struct inode *inode, struct file *filp, unsigned int cmd,
		   unsigned long arg )
{
	drm_file_t	  *priv	    = filp->private_data;
	drm_device_t	  *dev	    = priv->head->dev;
	drm_i830_private_t *dev_priv = dev->dev_private;
	drm_i830_irq_emit_t emit;
	int result;

	LOCK_TEST_WITH_RETURN(dev, filp);

	if ( !dev_priv ) {
		DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
		return -EINVAL;
	}

	if (copy_from_user( &emit, (drm_i830_irq_emit_t __user *)arg, sizeof(emit) ))
		return -EFAULT;

	result = i830_emit_irq( dev );

	if ( copy_to_user( emit.irq_seq, &result, sizeof(int) ) ) {
		DRM_ERROR( "copy_to_user\n" );
		return -EFAULT;
	}

	return 0;
}
Exemple #2
0
/* Needs the lock as it touches the ring.
 */
int i830_irq_emit(struct drm_device *dev, void *data,
		  struct drm_file *file_priv)
{
	drm_i830_private_t *dev_priv = dev->dev_private;
	drm_i830_irq_emit_t *emit = data;
	int result;

	LOCK_TEST_WITH_RETURN(dev, file_priv);

	if (!dev_priv) {
		DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
		return -EINVAL;
	}

	result = i830_emit_irq(dev);

	if (copy_to_user(emit->irq_seq, &result, sizeof(int))) {
		DRM_ERROR("copy_to_user\n");
		return -EFAULT;
	}

	return 0;
}