From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Subject: [PATCH 2/3] drm/i915: Handle catastrophic error on
 engine reset
Date: Fri, 12 Apr 2019 18:37:22 +0300
Message-ID: <20190412153723.31931-2-mika.kuoppala@linux.intel.com>
References: <20190412153723.31931-1-mika.kuoppala@linux.intel.com>
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 mga14.intel.com (mga14.intel.com [192.55.52.115])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 0E11689A59
 for <intel-gfx@lists.freedesktop.org>; Fri, 12 Apr 2019 15:37:33 +0000 (UTC)
In-Reply-To: <20190412153723.31931-1-mika.kuoppala@linux.intel.com>
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: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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