From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 3/4] drm/i915: Use frame buffer modifiers
 for tiled display
Date: Wed, 4 Feb 2015 16:33:20 +0100
Message-ID: <20150204153320.GL14009@phenom.ffwll.local>
References: <1422639418-28845-1-git-send-email-tvrtko.ursulin@linux.intel.com>
 <1422984152-5022-1-git-send-email-tvrtko.ursulin@linux.intel.com>
 <1422984152-5022-4-git-send-email-tvrtko.ursulin@linux.intel.com>
 <20150203194757.GW14009@phenom.ffwll.local>
 <54D1EE09.3070607@linux.intel.com>
 <20150204142506.GG14009@phenom.ffwll.local>
 <54D23632.3090709@linux.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mail-wg0-f42.google.com (mail-wg0-f42.google.com [74.125.82.42])
 by gabe.freedesktop.org (Postfix) with ESMTP id CFFFB6E14D
 for <Intel-gfx@lists.freedesktop.org>; Wed,  4 Feb 2015 07:31:59 -0800 (PST)
Received: by mail-wg0-f42.google.com with SMTP id x13so2441041wgg.1
 for <Intel-gfx@lists.freedesktop.org>; Wed, 04 Feb 2015 07:31:58 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <54D23632.3090709@linux.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: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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