From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Subject: Re: [PATCH 1/2] drm/i915: implemented dynamic WOPCM
 partition.
Date: Tue, 07 Nov 2017 12:52:50 +0200
Message-ID: <1510051970.4578.19.camel@linux.intel.com>
References: <1509754718-27734-1-git-send-email-yaodong.li@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 mga14.intel.com (mga14.intel.com [192.55.52.115])
 by gabe.freedesktop.org (Postfix) with ESMTPS id AB0C089C6A
 for <intel-gfx@lists.freedesktop.org>; Tue,  7 Nov 2017 10:52:53 +0000 (UTC)
In-Reply-To: <1509754718-27734-1-git-send-email-yaodong.li@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: Jackie Li <yaodong.li@intel.com>, intel-gfx@lists.freedesktop.org
Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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=