From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 1/3] drm/radeon: GPU virtual memory support v22 Date: Mon, 9 Jan 2012 17:49:46 +0100 Message-ID: <20120109164946.GG3723@phenom.ffwll.local> References: <1325819467-2216-1-git-send-email-alexdeucher@gmail.com> <20120108140532.GA4456@phenom.ffwll.local> <20120109083116.GB3723@phenom.ffwll.local> <20120109154415.GC3588@homer.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ww0-f43.google.com (mail-ww0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A6849E942 for ; Mon, 9 Jan 2012 08:47:53 -0800 (PST) Received: by wgbdt11 with SMTP id dt11so1523657wgb.12 for ; Mon, 09 Jan 2012 08:47:52 -0800 (PST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: Alex Deucher Cc: Alex Deucher , Jerome Glisse , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Mon, Jan 09, 2012 at 11:07:44AM -0500, Alex Deucher wrote: > We would have liked to as well, but with the holidays and internal > review process and people being on vacation, and the kernel merge > window timing it didn't work out this time. Still as Jerome said, our > VM setup is tightly coupled with the way our HW works. I'm not sure > how much code could actually be shared. Again to clarify, I'm not so much interesting in sharing code here - I know it'll be nigh to impossible by having looked through nouveau already and quickly glossed through your stuff. I see the value is just in having a minimal set of common idioms that we can use to build cool stuff like resource management. Think of gem, which is actually about next to nothing. There's a the flink stuff and a common close ioctl and recently also a dummy create unusable for anythine else than boot spalsh screens. Plus the shmem backing store which seems to be not so much in favour with embedded chips, i.e doesn't really count. Ridiculous compared to all the other stuff required to draw triangles on a gpu, but good enough to make things like dri2 and wayland possible. Cheers, daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48