From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [PATCH v2 12/22] drm/i915: Preserve SSC earlier
Date: Tue, 01 Sep 2015 09:46:37 +0300
Message-ID: <87h9ne63hu.fsf@intel.com>
References: <cover.1439288957.git.lukas@wunner.de>
 <29bed586baf62f6be77b7ab0ba1b8f5cb3be3aad.1439288957.git.lukas@wunner.de>
 <164b43588e80baaddb7a4d1081785c4d03a89c4b.1439288957.git.lukas@wunner.de>
 <27944adb13aa1ab246ee4a1ebb833e397324d073.1439288957.git.lukas@wunner.de>
 <2ac3eca0759cedd1009221cbef908605f8d29e1e.1439288957.git.lukas@wunner.de>
 <dc9642f97141bea03ec9f34f721cd0545c841d8c.1439288957.git.lukas@wunner.de>
 <ec399430bb382373e8b4edaa5f773563ebc6aaa9.1439288957.git.lukas@wunner.de>
 <f081b2513e26998c6f994305564e4a10e65ca820.1439288957.git.lukas@wunner.de>
 <dc446cd3b3dd3aab07bb6df9e291bef2a71d6352.1439288957.git.lukas@wunner.de>
 <de29004d1a3c4b192aaa18697f511d1e5b9f7bad.1439288957.git.lukas@wunner.de>
 <832f1cfceab9d9403b541b51733b87110fd8e019.1439288957.git.lukas@wunner.de>
 <e14b2b0ba7d6248edbdb74935f5743a705a62bb6.1439288957.git.lukas@wunner.de>
 <88b49891e95ced43bfb57cc8472bb69985827153.1439288957.git.lukas@wunner.de>
 <55E4B7A4.4080100@virtuousgeek.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
In-Reply-To: <55E4B7A4.4080100@virtuousgeek.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: Jesse Barnes <jbarnes@virtuousgeek.org>, Lukas Wunner <lukas@wunner.de>, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: Andreas Heider <andreas@meetr.de>, Paul Hordiienko <pvt.gord@gmail.com>, William Brown <william@blackhats.net.au>, Bruno Bierbaumer <bruno@bierbaumer.net>, Matthew Garrett <mjg59@coreos.com>, Dave Airlie <airlied@redhat.com>
List-Id: intel-gfx@lists.freedesktop.org
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