Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2296721imu; Fri, 14 Dec 2018 08:47:00 -0800 (PST) X-Google-Smtp-Source: AFSGD/UdssEiUL4+GAaW9rLK6lC+kUhC+Zh809vgrrQAjPjMIjPJd+OBIcf6ZQ8qEbUMvFRj6MDB X-Received: by 2002:a17:902:8607:: with SMTP id f7mr3406884plo.123.1544806020486; Fri, 14 Dec 2018 08:47:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1544806020; cv=none; d=google.com; s=arc-20160816; b=LMHXjpfGw4h2m0BLZAVa09DU2tVqx2+Tl/Fu/TL+HJ+KijK6vllWPE8YNR4fGlvJI7 J8rtVkUJ1xRxORUtFsktXTBnV3wPb68sUlEDY99g5uGz+8FlNhllBpwLOWTLuZzvYFKk qSrT2OAFrnuqxjKzci3dUAT6VgKGCCgJKhS9j7wuK16fKBoZpTiYsthFzLn94fTB8ZNg e1DoT4YgcvMBKAb0/oQSLnTSfiFtvOmoti8NzL/ZrxKy4LBdMerks+Sfm4JAphQ5eaHd dQdrKCz/6YkiArG47ktCMP5jfn/SuseaNm7IxAyJdLR4DiEtKQCxB1tG26qewNYe8DTp 5cYw== 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-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=LaL8ihhZplILLwozGLFRfbKZqzzfpVsggCYoP8vP0JA=; b=IkXIzQO+baDPZUzrsN+7vEBGt9T6KPdxYLSVTtlEazZvu+hej72LKtZIfp8v8mQP3y 2wLnL6eoF/C2n23p10A8V8JER507AVoXTIrmKC9GWJ4enat55SQw02S0KTbaaHvTN4Uq gBr4d82kVtQrHD5IhA3q8uNrStKZWUacSB/XuTRUlp0ap1GFPU6X/J8r0daYELfPmAC9 0VkCVoWs3EyldPECtTZ31sjcxwJD4ubokvcWt01JLFePobH8eFgcACTxrUP4+e/f0ine 68h4/Yqfw/JMaI8tIHZD2qdmm/kKIIh/pkD+TWr9GPX5x5GE52A1UoQwrXMNowj6kkJ6 yTag== 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 s2si888489pgr.285.2018.12.14.08.46.43; Fri, 14 Dec 2018 08:47:00 -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 S1729963AbeLNQpa (ORCPT + 99 others); Fri, 14 Dec 2018 11:45:30 -0500 Received: from verein.lst.de ([213.95.11.211]:48558 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729465AbeLNQpa (ORCPT ); Fri, 14 Dec 2018 11:45:30 -0500 Received: by newverein.lst.de (Postfix, from userid 2407) id 0745568DF1; Fri, 14 Dec 2018 17:45:29 +0100 (CET) Date: Fri, 14 Dec 2018 17:45:28 +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: <20181214164528.GB27074@lst.de> References: <2242B4B2-6311-492E-BFF9-6740E36EC6D4@xenosoft.de> <84558d7f-5a7f-5219-0c3a-045e6b4c494f@xenosoft.de> <20181213091021.GA2106@lst.de> <835bd119-081e-a5ea-1899-189d439c83d6@xenosoft.de> <76bc684a-b4d2-1d26-f18d-f5c9ba65978c@xenosoft.de> <20181213112511.GA4574@lst.de> <008c981e-bdd2-21a7-f5f7-c57e4850ae9a@xenosoft.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <008c981e-bdd2-21a7-f5f7-c57e4850ae9a@xenosoft.de> 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 Fri, Dec 14, 2018 at 01:00:26PM +0100, Christian Zigotzky wrote: > On 12 December 2018 at 3:15PM, Christoph Hellwig wrote: > > Thanks for bisecting.  I've spent some time going over the conversion > > but can't really pinpoint it.  I have three little patches that switch > > parts of the code to the generic version.  This is on top of the > > last good commmit (977706f9755d2d697aa6f45b4f9f0e07516efeda). > > > > Can you check with whіch one things stop working? > > Hello Christoph, > > Great news! All your patches work! No so great because that means I still have no idea what broke.. > I tested all your patches (including the patch '0004-alloc-free.patch' > today) and the PASEMI onboard ethernet works and the P5020 board boots > without any problems. Thank you for your work! > I have a few days off. That means, I will work less and only for the A-EON > first level Linux support. I can test again on Thursday next week. Enjoy your days off! I think I'll need to prepare something new that is better bisectable, and use that opportunity to reason about the changes a little more.