From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH 04/10] drm/i915: Wait for pipe to start
 before sampling vblank timestamps on gen2
Date: Wed, 16 Dec 2015 11:25:55 +0100
Message-ID: <20151216102555.GW30437@phenom.ffwll.local>
References: <1450110229-30450-1-git-send-email-ville.syrjala@linux.intel.com>
 <1450110229-30450-5-git-send-email-ville.syrjala@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 mail-wm0-f54.google.com (mail-wm0-f54.google.com [74.125.82.54])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 8509A6E884
 for <intel-gfx@lists.freedesktop.org>; Wed, 16 Dec 2015 02:25:58 -0800 (PST)
Received: by mail-wm0-f54.google.com with SMTP id l126so31865989wml.0
 for <intel-gfx@lists.freedesktop.org>; Wed, 16 Dec 2015 02:25:58 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <1450110229-30450-5-git-send-email-ville.syrjala@linux.intel.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://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: <http://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: ville.syrjala@linux.intel.com
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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