From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH 10/10] drm/i915: Disable use of stolen area
 by User when Intel RST is present
Date: Tue, 22 Dec 2015 12:44:10 +0000
Message-ID: <5679459A.70103@linux.intel.com>
References: <1450765253-32104-1-git-send-email-ankitprasad.r.sharma@intel.com>
 <1450765253-32104-11-git-send-email-ankitprasad.r.sharma@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 mga11.intel.com (mga11.intel.com [192.55.52.93])
 by gabe.freedesktop.org (Postfix) with ESMTP id 6EC5E6E5B7
 for <intel-gfx@lists.freedesktop.org>; Tue, 22 Dec 2015 04:44:12 -0800 (PST)
In-Reply-To: <1450765253-32104-11-git-send-email-ankitprasad.r.sharma@intel.com>
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: ankitprasad.r.sharma@intel.com, intel-gfx@lists.freedesktop.org
Cc: akash.goel@intel.com, shashidhar.hiremath@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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=