From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steven Price <steven.price@arm.com>
Subject: Re: [RFC PATCH] mesa: Export BOs in RW mode
Date: Wed, 3 Jul 2019 17:15:00 +0100
Message-ID: <4c01a0e3-013c-a9fe-08cd-3bbcd445f1aa@arm.com>
References: <20190703133357.10217-1-boris.brezillon@collabora.com>
 <CAL_JsqLb3qjzp8+9mj3SA=E_avsF7VnC=vji9YvePHvoiqgNgg@mail.gmail.com>
 <20190703155616.1ed02d49@collabora.com>
 <12e0bb1f-9a71-a120-7012-397fa0a16fd9@arm.com>
 <CAL_JsqKD=Qf40azaY0YeAM38=nxUPMCUVvWbZ497N9GZsXt-FQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <mesa-dev-bounces@lists.freedesktop.org>
In-Reply-To: <CAL_JsqKD=Qf40azaY0YeAM38=nxUPMCUVvWbZ497N9GZsXt-FQ@mail.gmail.com>
Content-Language: en-GB
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/mesa-dev>,
 <mailto:mesa-dev-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/mesa-dev>
List-Post: <mailto:mesa-dev@lists.freedesktop.org>
List-Help: <mailto:mesa-dev-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>,
 <mailto:mesa-dev-request@lists.freedesktop.org?subject=subscribe>
Errors-To: mesa-dev-bounces@lists.freedesktop.org
Sender: "mesa-dev" <mesa-dev-bounces@lists.freedesktop.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: ML mesa-dev <mesa-dev@lists.freedesktop.org>, Boris Brezillon <boris.brezillon@collabora.com>, Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>, dri-devel <dri-devel@lists.freedesktop.org>
List-Id: dri-devel@lists.freedesktop.org
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==