From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [Nouveau] [PATCH 0/5] Fix deadlock on runtime
 suspend in DRM drivers
Date: Mon, 19 Feb 2018 12:34:43 +0100
Message-ID: <20180219113443.GU22199@phenom.ffwll.local>
References: <cover.1518338788.git.lukas@wunner.de>
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-x243.google.com (mail-wm0-x243.google.com
 [IPv6:2a00:1450:400c:c09::243])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 0CED98970B
 for <intel-gfx@lists.freedesktop.org>; Mon, 19 Feb 2018 11:34:48 +0000 (UTC)
Received: by mail-wm0-x243.google.com with SMTP id v71so14439300wmv.2
 for <intel-gfx@lists.freedesktop.org>; Mon, 19 Feb 2018 03:34:47 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <cover.1518338788.git.lukas@wunner.de>
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: Lukas Wunner <lukas@wunner.de>
Cc: Archit Taneja <architt@codeaurora.org>, Ismo Toijala <ismo.toijala@gmail.com>, Hans de Goede <hdegoede@redhat.com>, nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, Lai Jiangshan <jiangshanlai@gmail.com>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Alex Deucher <alexander.deucher@amd.com>, Ben Skeggs <bskeggs@redhat.com>, Tejun Heo <tj@kernel.org>, Dave Airlie <airlied@redhat.com>
List-Id: intel-gfx@lists.freedesktop.org
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