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,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 E7900C433F4 for ; Wed, 19 Sep 2018 11:34:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADC532150D for ; Wed, 19 Sep 2018 11:34:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADC532150D 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 S1731552AbeISRLh (ORCPT ); Wed, 19 Sep 2018 13:11:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38184 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731235AbeISRLh (ORCPT ); Wed, 19 Sep 2018 13:11:37 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B7D6B3002899; Wed, 19 Sep 2018 11:34:07 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-56.phx2.redhat.com [10.3.116.56]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5A5C25D97A; Wed, 19 Sep 2018 11:34:07 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 38F549B31F; Wed, 19 Sep 2018 13:34:06 +0200 (CEST) Date: Wed, 19 Sep 2018 13:34:06 +0200 From: "kraxel@redhat.com" To: "An, Jiandi" Cc: "airlied@linux.ie" , "dri-devel@lists.freedesktop.org" , "virtualization@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" , "Lendacky, Thomas" , "Singh, Brijesh" Subject: Re: [PATCH] drm/virtio: add dma sync for dma mapped virtio gpu framebuffer pages Message-ID: <20180919113406.ukhgbiukx7vsuinw@sirius.home.kraxel.org> References: <20180919070931.91168-1-jiandi.an@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180919070931.91168-1-jiandi.an@amd.com> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.43]); Wed, 19 Sep 2018 11:34:07 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 19, 2018 at 07:09:53AM +0000, An, Jiandi wrote: > With virtio gpu ttm-pages being dma mapped, dma sync is needed when > swiotlb is used as bounce buffers, before TRANSFER_TO_HOST_2D/3D > commands are sent. Pushed to drm-misc-next. thanks, Gerd