drm/exynos: add render node support

[Daniel Vetter]

On Mon, Aug 31, 2015 at 07:30:23PM +0100, Emil Velikov wrote:
> On 31 August 2015 at 13:36, Inki Dae <inki.dae at samsung.com> wrote:
> > Hi Emil,
> >
> > On 2015년 08월 31일 20:58, Emil Velikov wrote:
> >> Hi all,
> >>
> >> On 18 August 2015 at 08:01, Inki Dae <inki.dae at samsung.com> wrote:
> >>> From: Joonyoung Shim <jy0922.shim at samsung.com>
> >>>
> >>> This patch allows clients who want to use render node to access
> >>> rendering relevant ioctls - g2d, post processor and gem allocation.
> >>>
> >> I seem to recall Dave and others saying that we must have users of
> >> these interfaces prior to merging them into the kernel. Then again I
> >> cannot find any open-source userspace using the post-processor. Can
> >> anyone kingly share a link ?
> >
> > You can refer to the user-space below,
> > https://review.tizen.org/git/?p=platform/upstream/libdrm.git;a=commit;h=52de1c57e2e6f3b2a1259478d5ae260ed4c5706e
> >
> Nice one thanks !
> Did those patch(es) ever made it to the list ? Mind giving them a tiny
> bit of cleanup (move tests to exynos, drop duplication, C99
> initializers) and sending them over ?

This is stretching the open-source userspace requirements quite a bit
since it's just a simple testcase and not really real-world userspace
(like a gstreamer module, X driver or whatever). Dave Airlie recently
clarified for the atomic series that just a bunch of test apps
(specifically for atomic glplanes) isn't good enough, and he wants the
real thing.

Where is that?

Also adding Dave.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch