From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Remove temporary allocation of
 dma addresses when rotating
Date: Wed, 15 Nov 2017 09:18:00 +0000
Message-ID: <bb153292-36ae-d0ff-4647-db35f9ba018c@linux.intel.com>
References: <20170217151008.29657-1-chris@chris-wilson.co.uk>
 <1487689281.3137.23.camel@linux.intel.com>
 <af65d534-53e8-ae45-f0bc-8234fda08d04@linux.intel.com>
 <20170222084417.GE10557@nuc-i3427.alporthouse.com>
 <54ae3e3a-61f7-0471-d44a-bf4c78f23a32@linux.intel.com>
 <20170227100613.GF13095@nuc-i3427.alporthouse.com>
 <fccb328e-6ed5-70a7-8218-bb1efae01f5d@linux.intel.com>
 <20170227102159.GG13095@nuc-i3427.alporthouse.com>
 <d0c1ec54-28c2-4762-1844-ea26da2feede@linux.intel.com>
 <151068326504.23340.18057144852354142584@mail.alporthouse.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 mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTPS id B96046E3E7
 for <intel-gfx@lists.freedesktop.org>; Wed, 15 Nov 2017 09:18:02 +0000 (UTC)
In-Reply-To: <151068326504.23340.18057144852354142584@mail.alporthouse.com>
Content-Language: en-GB
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: Chris Wilson <chris@chris-wilson.co.uk>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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