From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Subject: [PATCH 08/12] drm/i915/psr: Cache sink synchronization
 latency
Date: Thu, 22 Mar 2018 14:48:44 -0700
Message-ID: <20180322214848.28022-8-jose.souza@intel.com>
References: <20180322214848.28022-1-jose.souza@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 mga18.intel.com (mga18.intel.com [134.134.136.126])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 46BA96E05C
 for <intel-gfx@lists.freedesktop.org>; Thu, 22 Mar 2018 21:51:59 +0000 (UTC)
In-Reply-To: <20180322214848.28022-1-jose.souza@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: intel-gfx@lists.freedesktop.org
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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