From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH 1/2] drm/i915: Make sure engines are idle
 during GPU idling in LR mode
Date: Thu, 3 Nov 2016 16:49:51 +0000
Message-ID: <aef8f156-4978-c937-c808-2bbf4dbb7e6c@linux.intel.com>
References: <1478189978-17908-1-git-send-email-imre.deak@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga04.intel.com (mga04.intel.com [192.55.52.120])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 4A8206E78C
 for <intel-gfx@lists.freedesktop.org>; Thu,  3 Nov 2016 16:50:01 +0000 (UTC)
In-Reply-To: <1478189978-17908-1-git-send-email-imre.deak@intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://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: <https://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: Imre Deak <imre.deak@intel.com>, intel-gfx@lists.freedesktop.org
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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