From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Disable caches for Global GTT.
Date: Thu, 6 Nov 2014 22:53:00 +0200
Message-ID: <20141106205300.GS10649@intel.com>
References: <1414685898-24848-1-git-send-email-rodrigo.vivi@intel.com>
 <CAKMK7uHy391GDuMN-hedwSshRv5fS1dAi3YuJWXL=fcFJvdrtQ@mail.gmail.com>
 <20141106105512.GF3250@nuc-i3427.alporthouse.com>
 <20141106190952.GR10649@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 ESMTP id 7A4CC6E89A
 for <intel-gfx@lists.freedesktop.org>; Thu,  6 Nov 2014 12:53:07 -0800 (PST)
Content-Disposition: inline
In-Reply-To: <20141106190952.GR10649@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: Chris Wilson <chris@chris-wilson.co.uk>, Daniel Vetter <daniel@ffwll.ch>, Rodrigo Vivi <rodrigo.vivi@intel.com>, intel-gfx <intel-gfx@lists.freedesktop.org>, "Nikula, Jani" <jani.nikula@linux.intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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