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=-5.4 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 11EAAC04EB9 for ; Mon, 3 Dec 2018 21:56:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D648120850 for ; Mon, 3 Dec 2018 21:56:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D648120850 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gmx.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726020AbeLCV4n (ORCPT ); Mon, 3 Dec 2018 16:56:43 -0500 Received: from mout.gmx.net ([212.227.15.18]:53847 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725938AbeLCV4n (ORCPT ); Mon, 3 Dec 2018 16:56:43 -0500 Received: from longitude ([87.79.84.57]) by mail.gmx.com (mrgmx001 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MWTfu-1h1XjS0u6c-00XbNn; Mon, 03 Dec 2018 22:56:05 +0100 Date: Mon, 3 Dec 2018 22:55:58 +0100 From: Jonathan =?utf-8?Q?Neusch=C3=A4fer?= To: Christophe Leroy Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , j.neuschaefer@gmx.net, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v1 03/13] powerpc/mm/32s: rework mmu_mapin_ram() Message-ID: <20181203215558.GK15324@latitude> References: <8835330baa77d88e0267b0b1215b78c991e6d17a.1543517818.git.christophe.leroy@c-s.fr> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3607uds81ZQvwCD0" Content-Disposition: inline In-Reply-To: <8835330baa77d88e0267b0b1215b78c991e6d17a.1543517818.git.christophe.leroy@c-s.fr> User-Agent: Mutt/1.10.1 (2018-07-13) X-Provags-ID: V03:K1:LOSPz25wnZaZbdRbnDyYPrZwko0HsusJN9bRjOtQ4TquWHlxyE9 zj2+7XDUDg7H1pW3lj28PVAx7gMsZS5IPjeN0ew0nizKDQSHcVOgPk1gdZVt7nR7tPeYYe8 agoXoEbpnLVVOriyvU5CrQxvsvzgJnC14dYhslqWoMlPQ/fgmiIg20mWvnhVWuFNvM5Urdr 1nkyvOnSN9brwMZzHcMiA== X-UI-Out-Filterresults: notjunk:1;V03:K0:0P2tvbo0mg8=:IDsYNlPJJNIDas6qG7PHSi YkY9G4xNRp5eXyksLho0IYRkTbTLnl7Cc1ai0+XLQJqbcOZl9BdYrse+hMO8szZ0Wog6AwL4q VzObVQfN4C1zNSSjxDvxs+ErE+GfwoxnlAPEwQrqcKl2fe8z0G8zSZbqsQBaqXf/oD5qX0qaU ffEiiayrYDt1JHuR8PAaqYkCS0mS/BRmyK3G+oPOwkX49yca2u5iXa7gvXKNxOorgxlBFpCTG KLvK7QqHjGhfHMeeStDSN6IEd9vna4Bdo/FW6FV7eCMQLV5LIvmfgKK3I0KK5Eu6/OFX1SrqG 0SFiM6NwgrMiJ9bsgHsWJtRE4V8Af6KautwhuDHvJHi5nJKZNs6UIX132Vvv5EWqSZgdyb/UN Fjge8o3BI4/f0v09fu96QJRc0ANCU3xQTsAmiz1B2nKvpIFhyZZZ04SYi8fdt2D0dzuK2o8ID wm5kWgWKW5ZdiNbDqRKWy/ECX7y98erueRY9pI2CIsM7XMU5cvIH9R6Q8ivbczWLgHETGLOLq ud2GSGMta3HgB/OxlLabmJ/wtFOQ1Ueo1nmZDGomakCHsML5XxCkLiCrk+JUr/OMvAd0W+2a7 jHkQxUuV0503fDSHk9SZ+vFvDW16FoJJkeLDXc2QATqZ2ytVh8GE5YY+OF5DwEAUA/3recLqj DfIrFFKK+eZaYlHeEDLUYkN25Uc0qjd8Ab3V8sDw9h3MxL057EA5LJynsgvy3Aq5TgDgnk/vs zM9lQs/mDEGh/LZcxoUS/SPROH1gp/Nl+tE/7DhwA9xlIZeypNBvWe1/hJW8Fw1q9hvgy/ZOV g/ElB1d6GWp8mvt98MlmHZ8ruiPNHCyOIVfUKhK0E4YvULyizbGTSk9Qng935hEe8vkAWr4o8 YQkQninPGZoFVxnjxLyFaWakBB0gcZA7ft4Qz8Qyz8ISPHOC6d7oAQJyn+qoA9 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --3607uds81ZQvwCD0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Thu, Nov 29, 2018 at 07:00:16PM +0000, Christophe Leroy wrote: > This patch reworks mmu_mapin_ram() to be more generic and map as much > blocks as possible. It now supports blocks not starting at address 0. >=20 > It scans DBATs array to find free ones instead of forcing the use of > BAT2 and BAT3. >=20 > Signed-off-by: Christophe Leroy > --- I've just tested this series on my Wii, and starting from this patch (03/13), it hangs at the following lines of output: [ 0.000000] printk: bootconsole [udbg0] enabled [ 0.000000] Total memory =3D 319MB; using 1024kB for hash table (at (ptr= val)) Before this patch it looks like this and boots to userspace: [ 0.000000] printk: bootconsole [udbg0] enabled [ 0.000000] Total memory =3D 319MB; using 1024kB for hash table (at (ptr= val)) [ 0.000000] Linux version 4.20.0-rc5-wii-00022-gfbb911b84755 (jn@longitu= de) (gcc version 8.2.0 (Debian 8.2.0-9)) #1337 PREEMPT Mon Dec 3 21:49:02 C= ET 2018 ug_udbg_init: early -> final usbgecko_udbg: ready [ 0.000000] Using wii machine description =2E.. I've tested at patch 1, 2, 3, 4, and 13, so I don't know if it works somewhere in the middle, but probably not. (And in case you're wondering about the 22 in the version string: Those are mostly patches that give me a serial console.) I'm not sure what is going on, because I haven't looked closely at the patches or tried to debug the problem. If you have some debugging tips, I can try them. Jonathan Neusch=C3=A4fer --3607uds81ZQvwCD0 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEvHAHGBBjQPVy+qvDCDBEmo7zX9sFAlwFpmUACgkQCDBEmo7z X9tjQhAAtgGfhvYKAZs5YH93HGyareHmVqRSSg59aSnlMwaTZhLNHTix+xkwCgRQ i8mr6oA83S5B79HehInblEfrDh0FGluPBrUfhK/bTQOmJ4Cqk8ur4MHIEmBGiy3X 2Py2zXCeuK4K7YOPCqfJmmuPTo+qviQe8ya2i1TPyZ1IqwqnLJ5jstLBs8Yyfm4o y8azYiRZ43cJyhZ7bI1I6L4Y8oFYG06TLSe8yRaRHWO6iOhbEcv1ANUZ0Lz/Azn2 n0xWB4GhcS+cCJNzzYHjZqXQWWtWElDbuuXYh5kgUQAHZWgFNzCMjm5pd1WysiJk rxUyaaHTShibBgBz8KRMfXpJBUg6Ux4t86t2JdopbZCJ5fnXY8QFHEMCVpcak7v9 YDlX8ABaxC0s2ykxE9HFF6nrlkYQUk0pmbeqqEZN/vUV1lAQr2tlVap9s2ZwJdIP HUhhA12LBkOJx5q31wNip2k0cuvM6IjdHSrImjTNb37yHqsGaXCu+TWaWSmzXA/B f3/7TLY+chXqxUCawpPgeYz53fy4Y9opNjD3hzDzzFD9PcRFzyixl7fM9wlgE37w D7UNNZ18ky7LKMuL+5RpbH41dGILkku3tPHflc+h0v+RCJacL3h+uDr3+w7Y8br7 D0zb7tVOQZwK8rbIoRzLPgsuU/aE2+3oC6fdLM2utgF7WwG/jlo= =J3qj -----END PGP SIGNATURE----- --3607uds81ZQvwCD0--