From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH 04/19] drm/i915: Add support for detecting
 vblanks when hw frame counter is unavailable.
Date: Wed, 27 Apr 2016 17:23:06 +0300
Message-ID: <20160427142306.GL4329@intel.com>
References: <1461052359-24154-1-git-send-email-maarten.lankhorst@linux.intel.com>
 <1461052359-24154-5-git-send-email-maarten.lankhorst@linux.intel.com>
 <20160427140616.GB20134@patrik-desktop.isw.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 mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTP id E942E6EAEA
 for <intel-gfx@lists.freedesktop.org>; Wed, 27 Apr 2016 14:23:09 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20160427140616.GB20134@patrik-desktop.isw.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: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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