From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas Stach Subject: Re: [PATCH v2 5/5] drm/tegra: Implement page-flipping support Date: Tue, 22 Jan 2013 10:48:12 +0100 Message-ID: <1358848092.1540.13.camel@tellur> References: <1358179560-26799-1-git-send-email-thierry.reding@avionic-design.de> <1358179560-26799-6-git-send-email-thierry.reding@avionic-design.de> <50FE4E4F.6080506@nvidia.com> <20130122085756.GA6315@avionic-0098.adnet.avionic-design.de> <1358846121.1540.6.camel@tellur> <20130122093150.GA22264@avionic-0098.adnet.avionic-design.de> <50FE5F61.4080103@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <50FE5F61.4080103-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Terje =?ISO-8859-1?Q?Bergstr=F6m?= Cc: Thierry Reding , David Airlie , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-tegra@vger.kernel.org Am Dienstag, den 22.01.2013, 11:44 +0200 schrieb Terje Bergstr=C3=B6m: > On 22.01.2013 11:31, Thierry Reding wrote: > > I'm not quite sure if I remember correctly, but I think David menti= oned > > something along the lines of requiring a working userspace that can= be > > used to test the DRM interfaces as a prerequisite to getting this k= ind > > of code merged. >=20 > That's why we have provided user space, test suite that tests all > interfaces we are exporting, and a demo application that runs. If the > prerequisite is a working DDX, that's obviously not enough. >=20 I think the test suite is enough to fulfil the formal requirement of having a working userspace. But still it would be nice to have at least some simple accel functions working in the DDX. Maybe just to see on ho= w well the current design integrates into the DDX code. So I wouldn't make a working DDX a hard requirement for merging G2D code, but I suspect that if the kernel code goes into 3.10 instead of 3.9, we'll just naturally get to the point of working DDX accel by the same time. Regards, Lucas