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] drm/i915: Assert we hold the CRTC powerwell
 for generating vblank interrupts
Date: Tue, 11 Oct 2016 09:55:38 +0300
Message-ID: <20161011065538.GL4329@intel.com>
References: <b64d6456-5b90-a5b5-64aa-7bc105565e86@linux.intel.com>
 <20161010113454.7249-1-chris@chris-wilson.co.uk>
 <20161010114201.GB4329@intel.com>
 <20161010114632.GA16122@nuc-i3427.alporthouse.com>
 <20161010115640.GC4329@intel.com>
 <6925210f-e485-64de-e0be-17fe03887924@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 mga03.intel.com (mga03.intel.com [134.134.136.65])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 1B3616E456
 for <intel-gfx@lists.freedesktop.org>; Tue, 11 Oct 2016 06:55:42 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <6925210f-e485-64de-e0be-17fe03887924@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: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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