diff --git a/drivers/char/drm/radeon_state.c b/drivers/char/drm/radeon_state.c
index 6f75512..eee1357 100644
--- a/drivers/char/drm/radeon_state.c
+++ b/drivers/char/drm/radeon_state.c
@@ -3037,6 +3037,9 @@
 	case RADEON_PARAM_FB_LOCATION:
 		value = radeon_read_fb_location(dev_priv);
 		break;
+	case RADEON_PARAM_NUM_GB_PIPES:
+		value = dev_priv->num_gb_pipes;
+		break;
 	default:
 		DRM_DEBUG("Invalid parameter %d\n", param->param);
 		return -EINVAL;