From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Goel, Akash" <akash.goel@intel.com>
Subject: Re: [PATCH 14/18] drm/i915: Forcefully flush GuC log
 buffer on reset
Date: Tue, 16 Aug 2016 17:49:49 +0530
Message-ID: <f854e784-302f-ba6b-944a-5ff2af7fc53d@intel.com>
References: <1471272599-14586-1-git-send-email-akash.goel@intel.com>
 <1471272599-14586-15-git-send-email-akash.goel@intel.com>
 <57B2F888.1030106@linux.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
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 ESMTP id 151E36E6B6
 for <intel-gfx@lists.freedesktop.org>; Tue, 16 Aug 2016 12:19:52 +0000 (UTC)
In-Reply-To: <57B2F888.1030106@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: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>, intel-gfx@lists.freedesktop.org
Cc: akash.goel@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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