From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A235C04EB9 for ; Wed, 5 Dec 2018 10:53:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DAF232064A for ; Wed, 5 Dec 2018 10:53:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DAF232064A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727414AbeLEKxU (ORCPT ); Wed, 5 Dec 2018 05:53:20 -0500 Received: from mx1.redhat.com ([209.132.183.28]:41016 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726866AbeLEKxU (ORCPT ); Wed, 5 Dec 2018 05:53:20 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1774D432A4; Wed, 5 Dec 2018 10:53:20 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-59.ams2.redhat.com [10.36.116.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id 60B6D2B58F; Wed, 5 Dec 2018 10:53:19 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 0AFB39D2D; Wed, 5 Dec 2018 11:53:18 +0100 (CET) From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org, David Airlie Cc: Gerd Hoffmann , David Airlie , virtualization@lists.linux-foundation.org (open list:VIRTIO GPU DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [PATCH 2/3] drm/virtio: fix pageflip flush Date: Wed, 5 Dec 2018 11:53:16 +0100 Message-Id: <20181205105317.15138-3-kraxel@redhat.com> In-Reply-To: <20181205105317.15138-1-kraxel@redhat.com> References: <20181205105317.15138-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 05 Dec 2018 10:53:20 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sending the flush command only makes sense if we actually have a framebuffer attached to the scanout (handle != 0). Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_plane.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index ead5c53d4e..548265b8e8 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -130,11 +130,12 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, plane->state->src_h >> 16, plane->state->src_x >> 16, plane->state->src_y >> 16); - virtio_gpu_cmd_resource_flush(vgdev, handle, - plane->state->src_x >> 16, - plane->state->src_y >> 16, - plane->state->src_w >> 16, - plane->state->src_h >> 16); + if (handle) + virtio_gpu_cmd_resource_flush(vgdev, handle, + plane->state->src_x >> 16, + plane->state->src_y >> 16, + plane->state->src_w >> 16, + plane->state->src_h >> 16); } static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane, -- 2.9.3