From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Anholt <eric@anholt.net>
Subject: Re: [PATCH 9/9] drm/i915: swizzling support for snb/ivb
Date: Mon, 14 Nov 2011 08:19:54 -0800
Message-ID: <87lirid6c5.fsf@eliezer.anholt.net>
References: <1320931087-1557-1-git-send-email-daniel.vetter@ffwll.ch>
	<1320931087-1557-10-git-send-email-daniel.vetter@ffwll.ch>
	<87sjluob6x.fsf@eliezer.anholt.net>
	<20111111172225.GB7295@phenom.ffwll.local>
	<87k476qwku.fsf@eliezer.anholt.net>
	<CAKMK7uF0BFmePHnHHoMEzh5UfMCmretKPnAhBV6emA2FW7MZoQ@mail.gmail.com>
	<87bosiqvmo.fsf@eliezer.anholt.net>
	<CAKMK7uF5=NBNsYSF0WmR0avcyo3=awWfFXiigxqUaLh4-sdEfw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="===============0786356234=="
Return-path: <intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org>
In-Reply-To: <CAKMK7uF5=NBNsYSF0WmR0avcyo3=awWfFXiigxqUaLh4-sdEfw@mail.gmail.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>
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: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

--===============0786356234==
Content-Type: multipart/signed; boundary="=-=-=";
	micalg=pgp-sha1; protocol="application/pgp-signature"

--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

On Fri, 11 Nov 2011 21:18:31 +0100, Daniel Vetter <daniel@ffwll.ch> wrote:
> On Fri, Nov 11, 2011 at 20:58, Eric Anholt <eric@anholt.net> wrote:
> > Oh, yeah, swap. =C2=A0Good point, sounds like a plan. =C2=A0If you mana=
ge to get
> > reliable swapping of tiled data on 945g, I'll owe you all the beers.
>=20
> If you mean i945G as in desktop variant, patch 6/9 should fix the
> swizzle detection on that one - it can do bit17 swizzling, too. I'd be
> interested in whether this fixes all the swap issues, if you have that
> machine still around ...
>=20
> But as I've said there's also the gm45 bug which looks like a part of
> the main memory in not swizzled. On that topic: Do you still remember
> details about that machine where parts of the memory can be
> unswizzled?

The management engine/mismatched dimms issue making "L-shaped" memory
(part dual channel, part single channel) in the 945-gm45 era was never
handled (somewhere in g45-ilk era, there was a reg the BIOS could set
that would make L-shaped memory have consistent swizzling anyway).  I
never found precise docs on how to figure out what the shape of the L
was -- I suspect you'd get to find out by poking at things like TOLUD
and experimenting with binding all the pages you can grab to find which
are swizzled.


--=-=-=
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)

iEYEARECAAYFAk7BP6oACgkQHUdvYGzw6veFtQCfYiKJnF/cIvsLXc9G9ZvF49AK
mh0AnixScRkkt2L6HBFLQqs/a293/y/g
=CpdE
-----END PGP SIGNATURE-----
--=-=-=--

--===============0786356234==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--===============0786356234==--