From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Airlie <airlied@gmail.com>
Subject: drm tiled monitor support (not hiding in kernel)
Date: Mon, 20 Oct 2014 16:37:10 +1000
Message-ID: <1413787036-19114-1-git-send-email-airlied@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org

So I believe attempts to hide the DP MST tiled monitors in the kernel,
are a path to failure, so I've resurrected my previous code to just
create a tile property on the connectors for userspace to key off.

The contents of the tile blob are ABI, and I expect it to be
parsed by a fair few userspace projects.

So far I've ported a few pieces of GNOME to using it and posted
patches for that to their lists,

The X server should use this for make better XINERAMA info,
but otherwise drivers should pass the TILE property through
to the clients, as it contains nothing kernel specific.

Dave.