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 7/7] drm/i915: add i915_get_reset_stats_ioctl
Date: Thu, 4 Jul 2013 10:54:58 +0300
Message-ID: <20130704075458.GT5004@intel.com>
References: <1372861332-6308-1-git-send-email-mika.kuoppala@intel.com>
	<1372861332-6308-8-git-send-email-mika.kuoppala@intel.com>
	<20130703151431.GB19383@cantiga.alporthouse.com>
	<20130703212323.GC5488@bwidawsk.net>
	<20130703214111.GF19383@cantiga.alporthouse.com>
	<20130703214415.GD5488@bwidawsk.net>
	<CAKMK7uG1GVJ+nf7M=w62okSjrx6qLV8RPovtYi_RuoPvvYGEWg@mail.gmail.com>
	<20130703220039.GF5488@bwidawsk.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Return-path: <intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org>
Received: from mga03.intel.com (mga03.intel.com [143.182.124.21])
	by gabe.freedesktop.org (Postfix) with ESMTP id BB697E665B
	for <intel-gfx@lists.freedesktop.org>;
	Thu,  4 Jul 2013 00:55:18 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <20130703220039.GF5488@bwidawsk.net>
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>
Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org
Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org
To: Ben Widawsky <ben@bwidawsk.net>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, intel-gfx <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

On Wed, Jul 03, 2013 at 03:00:39PM -0700, Ben Widawsky wrote:
> On Wed, Jul 03, 2013 at 11:58:31PM +0200, Daniel Vetter wrote:
> > On Wed, Jul 3, 2013 at 11:44 PM, Ben Widawsky <ben@bwidawsk.net> wrote:
> > > Yes. It won't be a requirement for mesa to know, but since I want to
> > > kill aliasing ppgtt as much as possible, I intend to update getparam =
to
> > > both set 0 to aliasing, and a new one for ppgtt.
> > =

> > We use that one essentially to decide whether the hw uses ppgtt or
> > not, aliasing kinda doesn't matter. So to keep api I guess we need to
> > keep that one enabled. Although only i-g-t really cares I think, but
> > keeping it working would still be nice. Maybe just add a comment to
> > the #define explaining what's going on?
> > -Daniel
> =

> It's a bit off topic for this series, but I don't see any reason to keep
> it working. If it doesn't end up being too much trouble, I can - but in
> actuality on the kernel would be able to use it. Exposing the param as
> true to user space would be a lie.

But won't old Mesa refuse to work if you tell it aliasing ppgtt is not
enabled?

-- =

Ville Syrj=E4l=E4
Intel OTC