From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4873DC3A5A6 for ; Thu, 19 Sep 2019 12:32:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2458621848 for ; Thu, 19 Sep 2019 12:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732099AbfISMc4 (ORCPT ); Thu, 19 Sep 2019 08:32:56 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:39878 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727980AbfISMc4 (ORCPT ); Thu, 19 Sep 2019 08:32:56 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: alyssa) with ESMTPSA id B8C1C28E946 Date: Thu, 19 Sep 2019 08:32:43 -0400 From: Alyssa Rosenzweig To: Nicolas Boichat Cc: Rob Herring , Matthias Brugger , Mark Rutland , devicetree@vger.kernel.org, "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , "moderated list:ARM/Mediatek SoC support" , "linux-kernel@vger.kernel.org" , Nick Fan , Boris Brezillon , Douglas Anderson , Dominik Behr , Steven Price Subject: Re: [PATCH] arm64: dts: mt8183: Add node for the Mali GPU Message-ID: <20190919123243.GA3457@kevin> References: <20190905081546.42716-1-drinkcat@chromium.org> <20190913181729.GB3115@kevin> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="sm4nu43k4a2Rpi4c" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --sm4nu43k4a2Rpi4c Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > > By the time MT8183 shows up in more concrete devices, it will, certainly > > in kernel-space and likely in userspace as well. At present, the DDK can > > be modified to run on top of the in-tree Mali drivers, i.e. "Bifrost on > > mainline linux-next (+ page table/compatible patches), with blob > > userspace". > > > > While the open userspace isn't ready here quite yet, I would definitely > > encourage upstream kernel for ChromeOS, since then there's no need to > > maintain the out-of-tree GPU driver. >=20 > That's an interesting idea, I had no idea, thanks for the info! >=20 > Would that work with midgard as well? We have released hardware with > RK3288/3399, so it might be nice to experiment with these first. Yes, the above would work with Midgard as well with no changes needed. Ping Steven about thtat (CC'd). > > More immediately, per Rob's review, it's important that the bindings > > accepted upstream work with the in-tree Bifrost driver. Conceptually, > > once Mesa supports Bifrost, if I install Debian on a MT8183 board, > > everything should just work. I shouldn't need MT-specific changes / need > > to change names for the DT. Regardless of which kernel driver you end up > > using, minimally sharing the DT is good for everyone :-) >=20 > Yes. I'll try to dig further with MTK, but this may take some time. Thank you! --sm4nu43k4a2Rpi4c Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEQ17gm7CvANAdqvY4/v5QWgr1WA0FAl2DdWcACgkQ/v5QWgr1 WA1hxw//TRYFfG359ycsk4qVwveSnK9GFoKgfPx0UD6KVttjcVebh10JgmvhdS6P MIUe3X2Z55xOliZtP/J8aRTI+GcqodYOm+2NXit9Qrs9ME3wH1PribyPOanVdDeY LyVOiz2hKFiXgIQ+Tc3IwbKF8fG/9J1SCuBCPF7WhxWPPCq/M8l9nfis2BptnMri e/qXnFjFULKgZqr2PT/iAE4FwqqRwazg3zZrknP+pVyluXKYm2yjVN9wpjG9PD+/ rxjgLJF8q+YmhTnVsN17bs5/lM0I1DPAMPaQqcDgYXt2BDpqqX1iImmxvLhWo2Gd cJ9uLExJvgwlpwGAv/q5S6UDJb6Svm2Hj9vqhE4gc0nRldJ+z61CnoSZZxohSOLP c37VB3DCoy2Nq3AYL2RWWESL1e7fmrFvhfXAn+vUguvufzv6khm/ymkV/Fv3sCIf pScO4+/WtjsjPVCUJhqE/sJmQAZSGJl3JntNPjW/Wcx/RytrfduL7/xDm36jtC5u zMTPdW9gZlS6ljNBVpErL1sq40MLM3aH8uUaeiOZmq+/P8zDYYBPgxAPPQ+oa0Ai y3uXXGb80thBw3uCZQlYmfeo5pfGb8opGmvEGejJWy05CC/jZIdDvq7vm0Cw9r0Y FniCzNzidydYsTv2Hg6rPNSGHAfh2ZzJq9nSRKhUa4HpZEOK0SY= =V95/ -----END PGP SIGNATURE----- --sm4nu43k4a2Rpi4c--