Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp9515241imu; Wed, 5 Dec 2018 06:07:46 -0800 (PST) X-Google-Smtp-Source: AFSGD/W0Umekp4VHm7XJoHGv9TQb9nKoIRg5Vczd1lRak352wb6yOqiQvl5q0iVbnqcHHSHKxvHF X-Received: by 2002:a63:2507:: with SMTP id l7mr19784387pgl.22.1544018866788; Wed, 05 Dec 2018 06:07:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1544018866; cv=none; d=google.com; s=arc-20160816; b=pmcNoE+R99LtyXiMAyCFCvAkIHuRZAF3QpduUe+ydDVpdLPDqEn2Rl04bGcMHhx+Xm nYEXQ8HhFlXrZfGiZGRryV3gcZ44KPD70uPH2tHMIA6Xs48gKZ1tNA8I0AfL+BWlDJTz qKxCL1tAq7Dp+491Pq+vq31MY67lRstervL3jIF1ifr2jxqeaCb4lshi5tUaS3EN93Ug WzrYH7USaoO+CCsSNGdVEsTYax/+QWwco8H5fAgKNYUs1DuXIwE+NiUWnAvnmS2kX+fK gMUKs/v4n//LAkEuZFND89kv/ggbiN5EqxR99S+nztLabsRywIcft3VmuUnyCAJLFuZT e/rQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=3rh0SsadxBVWiFoUMYwMjH1mhlRRts/UsKKZtGz2hMA=; b=ZisMOlmIQX3KrBqI1yOIBHIL0wi2a0YZVn7HQKF17/LaKka4P8GvG4ff4oNA6NxDEn 6Uh9zu8DQ12Fpy+roYRS/kftwuYjwGh6uMTy0H0SxgM2zRbi2g4xrwSr7HyIhborKD/a oQlTt4vdxLKI90TAKg+1ivjiT+wVLsPILvcB2Gv1eBY35xjJ/CXGI9iR/Q8LVOOrLM0m S9fwF3r/d6SRblOprJ/1D0eigMbZN3/kSR3SO5T8rQz6gjLFxjRFpLzeIBA3HzsQYT4f bDUloGRG22cl21a228p3VmvpakjbenHCXTsxACaL8kQ2QTA+i1z51PFHc7Jrk0Pw9q65 dSoA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l96si19808233plb.292.2018.12.05.06.07.20; Wed, 05 Dec 2018 06:07:46 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727564AbeLEOFw (ORCPT + 99 others); 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