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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 B03BEC04EB9 for ; Wed, 5 Dec 2018 14:05:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 802FB2082B for ; Wed, 5 Dec 2018 14:05:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 802FB2082B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de 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 S1727585AbeLEOFw (ORCPT ); Wed, 5 Dec 2018 09:05:52 -0500 Received: from verein.lst.de ([213.95.11.211]:50597 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726918AbeLEOFw (ORCPT ); Wed, 5 Dec 2018 09:05:52 -0500 Received: by newverein.lst.de (Postfix, from userid 2407) id B87B168B03; Wed, 5 Dec 2018 15:05:50 +0100 (CET) Date: Wed, 5 Dec 2018 15:05:50 +0100 From: Christoph Hellwig To: Christian Zigotzky Cc: Christoph Hellwig , linux-arch@vger.kernel.org, Darren Stevens , linux-kernel@vger.kernel.org, Julian Margetson , linux-mm@kvack.org, iommu@lists.linux-foundation.org, Paul Mackerras , Olof Johansson , linuxppc-dev@lists.ozlabs.org Subject: Re: use generic DMA mapping code in powerpc V4 Message-ID: <20181205140550.GA27549@lst.de> References: <20181129170351.GC27951@lst.de> <20181130105346.GB26765@lst.de> <8694431d-c669-b7b9-99fa-e99db5d45a7d@xenosoft.de> <20181130131056.GA5211@lst.de> <25999587-2d91-a63c-ed38-c3fb0075d9f1@xenosoft.de> <58c61afb-290f-6196-c72c-ac7b61b84718@xenosoft.de> <20181204142426.GA2743@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 05, 2018 at 10:44:05AM +0100, Christian Zigotzky wrote: > Thanks for your reply. I undid all dma mapping commits with the following > command: > > git checkout 721c01ba8b46ddb5355bd6e6b3bbfdabfdf01e97 > > After that I compiled the kernels with this code for my P5020 board (Cyrus) > and for my PASEMI board (Nemo) today. > > Result: PASEMI onboard ethernet works again and the P5020 board boots. > > It seems the dma mapping commits are the problem. Thanks. Can you try a few stepping points in the tree? First just with commit 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6 (the first one) applied? Second with all commits up to 5da11e49df21f21dac25a2491aa788307bdacb6b And if that still works with commits up to c1bfcad4b0cf38ce5b00f7ad880d3a13484c123a