From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Subject: Re: [PATCH v3 7/7] [wip] virtio-gpu: add page flip support Date: Mon, 30 May 2016 14:06:50 +0200 Message-ID: <1464610010.5179.34.camel@redhat.com> References: <1443787104-24243-1-git-send-email-kraxel@redhat.com> <1443787104-24243-8-git-send-email-kraxel@redhat.com> <1464335163.10663.7.camel@redhat.com> <20160527075027.GW27098@phenom.ffwll.local> <20160530084233.GA27098@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160530084233.GA27098@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Daniel Vetter Cc: open list , dri-devel , "open list:VIRTIO GPU DRIVER" List-Id: virtualization@lists.linuxfoundation.org Hi, > > But I'll take you up on the implied offer to help out and test ;-) > > git://people.freedesktop.org/~danvet/drm stuff Tried that branch. > Would be really awesome if you could test this on virtio. Note that the > new nonblocking helpers require that your atomic backend gets the drm > event handling right. So if there's a bug in that logic then you'll see > lots of dmesg noise about waits timing out (after 10s of waiting). From a > quick inspection it should work though. No timeouts. Yay! But it seems crtcs can be (temporarely) disabled now, so we might have to pick up the crtc from old_state in virtio_gpu_plane_atomic_update to figure which virtual output needs to be turned off. Ran into this last week already. Happened with multihead setups only, but the same patch fixes this one too ;) https://lists.freedesktop.org/archives/dri-devel/2016-May/108772.html cheers, Gerd