From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomas Elf <tomas.elf@intel.com>
Subject: Re: [PATCH 27/53] drm/i915: Update overlay code to do
 explicit request management
Date: Thu, 05 Mar 2015 18:51:46 +0000
Message-ID: <54F8A5C2.8060601@intel.com>
References: <1423828140-10653-1-git-send-email-John.C.Harrison@Intel.com>
 <1424366285-29232-1-git-send-email-John.C.Harrison@Intel.com>
 <1424366285-29232-28-git-send-email-John.C.Harrison@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 mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTP id 8C47F6E3B5
 for <Intel-GFX@lists.freedesktop.org>; Thu,  5 Mar 2015 10:51:59 -0800 (PST)
In-Reply-To: <1424366285-29232-28-git-send-email-John.C.Harrison@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: John.C.Harrison@Intel.com, Intel-GFX@Lists.FreeDesktop.Org
List-Id: intel-gfx@lists.freedesktop.org
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