From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paulo Zanoni <przanoni@gmail.com>
Subject: [RFC] drm/i915: prevent out of range pt in the PDE
	macros (take 2)
Date: Fri, 12 Jun 2015 18:30:56 -0300
Message-ID: <1434144656-1557-1-git-send-email-przanoni@gmail.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-qg0-f46.google.com (mail-qg0-f46.google.com
 [209.85.192.46])
 by gabe.freedesktop.org (Postfix) with ESMTP id 27E576E017
 for <intel-gfx@lists.freedesktop.org>; Fri, 12 Jun 2015 14:31:53 -0700 (PDT)
Received: by qgfa66 with SMTP id a66so15314816qgf.0
 for <intel-gfx@lists.freedesktop.org>; Fri, 12 Jun 2015 14:31:52 -0700 (PDT)
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: intel-gfx@lists.freedesktop.org
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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