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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT 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 CCBCDC3279B for ; Wed, 4 Jul 2018 05:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 919DD244C1 for ; Wed, 4 Jul 2018 05:53:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 919DD244C1 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 S933678AbeGDFxn (ORCPT ); Wed, 4 Jul 2018 01:53:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48624 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932978AbeGDFxk (ORCPT ); Wed, 4 Jul 2018 01:53:40 -0400 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3E7A25D5EE; Wed, 4 Jul 2018 05:53:40 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-220.phx2.redhat.com [10.3.116.220]) by smtp.corp.redhat.com (Postfix) with ESMTP id 80789308BDB2; Wed, 4 Jul 2018 05:53:39 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 184B317442; Wed, 4 Jul 2018 07:53:38 +0200 (CEST) Date: Wed, 4 Jul 2018 07:53:38 +0200 From: Gerd Hoffmann To: dri-devel@lists.freedesktop.org, David Airlie , Tomeu Vizoso , Laurent Pinchart , Jonathan Corbet , Sumit Semwal , Shuah Khan , "open list:DOCUMENTATION" , open list , "open list:DMA BUFFER SHARING FRAMEWORK" , "moderated list:DMA BUFFER SHARING FRAMEWORK" , "open list:KERNEL SELFTEST FRAMEWORK" Subject: Re: [PATCH v6] Add udmabuf misc device Message-ID: <20180704055338.n3b7oexltaejqmcd@sirius.home.kraxel.org> References: <20180703075359.30349-1-kraxel@redhat.com> <20180703083757.GG7880@phenom.ffwll.local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180703083757.GG7880@phenom.ffwll.local> User-Agent: NeoMutt/20180622 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 04 Jul 2018 05:53:40 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 03, 2018 at 10:37:57AM +0200, Daniel Vetter wrote: > On Tue, Jul 03, 2018 at 09:53:58AM +0200, Gerd Hoffmann wrote: > > A driver to let userspace turn memfd regions into dma-bufs. > > > > Use case: Allows qemu create dmabufs for the vga framebuffer or > > virtio-gpu ressources. Then they can be passed around to display > > those guest things on the host. To spice client for classic full > > framebuffer display, and hopefully some day to wayland server for > > seamless guest window display. > > > > qemu test branch: > > https://git.kraxel.org/cgit/qemu/log/?h=sirius/udmabuf > > > > Cc: David Airlie > > Cc: Tomeu Vizoso > > Cc: Laurent Pinchart > > Cc: Daniel Vetter > > Signed-off-by: Gerd Hoffmann > > I think some ack for a 2nd use-case, like virtio-wl or whatever would be > really cool. To give us some assurance that this is generically useful. Tomeu? Laurent? > Plus an ack from dma-buf folks (nag them on irc, you don't have them on Cc > here). Hmm, does MAINTAINERS need an update then? Maintainer and mailing lists listed in the "DMA BUFFER SHARING FRAMEWORK" entry are on Cc. Who should be Cc'ed? > Then this is imo good to go. > > I assume you'll push it to drm-misc, like all the other dma-buf stuff? Can do that, sure, after collecting the acks ... thanks, Gerd