From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tarun Vyas <tarun.vyas@intel.com>
Subject: [PATCH] drm/i915/psr: Lockless version of
 psr_wait_for_idle
Date: Thu, 21 Jun 2018 18:03:21 -0700
Message-ID: <20180622010322.92851-1-tarun.vyas@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 mga11.intel.com (mga11.intel.com [192.55.52.93])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 7112C89C09
 for <intel-gfx@lists.freedesktop.org>; Fri, 22 Jun 2018 01:03:44 +0000 (UTC)
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: intel-gfx@lists.freedesktop.org
Cc: dhinakaran.pandiyan@intel.com, rodrigo.vivi@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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