From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [RFC 1/1] drm: allow to use mmuless SoC
Date: Wed, 30 Nov 2016 13:35:58 +0200
Message-ID: <7154886.Ud0Vdd6CQ5@avalon>
References: <1480504884-22638-1-git-send-email-benjamin.gaignard@linaro.org>
 <1480504884-22638-2-git-send-email-benjamin.gaignard@linaro.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
Received: from galahad.ideasonboard.com (galahad.ideasonboard.com
 [IPv6:2001:4b98:dc2:45:216:3eff:febb:480d])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 76A076E01E
 for <dri-devel@lists.freedesktop.org>; Wed, 30 Nov 2016 11:35:44 +0000 (UTC)
In-Reply-To: <1480504884-22638-2-git-send-email-benjamin.gaignard@linaro.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: linaro-kernel@lists.linaro.org, philippe.cornu@st.com, dri-devel@lists.freedesktop.org, yannick.fertre@st.com, airlied@redhat.com
List-Id: dri-devel@lists.freedesktop.org
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