From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Disable mmio debugging during
	user access
Date: Thu, 07 Sep 2017 16:22:21 +0300
Message-ID: <87mv663ape.fsf@gaia.fi.intel.com>
References: <20170907093657.1763-1-chris@chris-wilson.co.uk>
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 mga04.intel.com (mga04.intel.com [192.55.52.120])
 by gabe.freedesktop.org (Postfix) with ESMTPS id A05456E034
 for <intel-gfx@lists.freedesktop.org>; Thu,  7 Sep 2017 13:24:03 +0000 (UTC)
In-Reply-To: <20170907093657.1763-1-chris@chris-wilson.co.uk>
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>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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=