From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 4/9] drm: Begin an API for in-kernel clients
Date: Thu, 24 May 2018 12:14:12 +0200
Message-ID: <20180524101412.GK3438@phenom.ffwll.local>
References: <20180523143411.64070-1-noralf@tronnes.org>
 <20180523143411.64070-5-noralf@tronnes.org>
 <83e302ec-5ce5-2252-bf41-e26fb0a32b45@shipmail.org>
 <20180524083240.GF3438@phenom.ffwll.local>
 <6453f348-36dc-df51-347e-bec520c490d4@shipmail.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Content-Disposition: inline
In-Reply-To: <6453f348-36dc-df51-347e-bec520c490d4@shipmail.org>
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: Thomas Hellstrom <thomas@shipmail.org>
Cc: intel-gfx@lists.freedesktop.org, Noralf =?iso-8859-1?Q?Tr=F8nnes?= <noralf@tronnes.org>, dri-devel@lists.freedesktop.org, laurent.pinchart@ideasonboard.com
List-Id: dri-devel@lists.freedesktop.org
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=