From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH] drm/i915: Add debugfs entry for DRRS
Date: Fri, 23 Jan 2015 17:03:30 +0100
Message-ID: <20150123160330.GD10113@phenom.ffwll.local>
References: <54BF9B0C.8000803@intel.com>
 <1421945121-11050-1-git-send-email-ramalingam.c@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 mail-wi0-f176.google.com (mail-wi0-f176.google.com
 [209.85.212.176])
 by gabe.freedesktop.org (Postfix) with ESMTP id 387C96E93B
 for <intel-gfx@lists.freedesktop.org>; Fri, 23 Jan 2015 08:03:35 -0800 (PST)
Received: by mail-wi0-f176.google.com with SMTP id em10so3851621wid.3
 for <intel-gfx@lists.freedesktop.org>; Fri, 23 Jan 2015 08:03:34 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <1421945121-11050-1-git-send-email-ramalingam.c@intel.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://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: <http://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: Ramalingam C <ramalingam.c@intel.com>
Cc: intel-gfx@lists.freedesktop.org, paulo.r.zanoni@intel.com, rodrigo.vivi@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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