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=-0.7 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 51C1BC67839 for ; Thu, 13 Dec 2018 08:41:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9674320849 for ; Thu, 13 Dec 2018 08:41:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=xenosoft.de header.i=@xenosoft.de header.b="PfXvczCh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9674320849 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xenosoft.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 S1727438AbeLMIlz (ORCPT ); Thu, 13 Dec 2018 03:41:55 -0500 Received: from mo4-p01-ob.smtp.rzone.de ([85.215.255.51]:32791 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726578AbeLMIly (ORCPT ); Thu, 13 Dec 2018 03:41:54 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1544690512; s=strato-dkim-0002; d=xenosoft.de; h=In-Reply-To:Date:Message-ID:References:Cc:To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=Bfvpromnms5UokDyRtp7mH4KUnO6cTFACJPyYkrfIZw=; b=PfXvczChA1AblXUjt1r2UC1ECPkC6mDcpBEKBh6AKbpKMuQegvF6U9z+HLqC+jjcN+ DrD+ats/68R2O4WJow6FWfmLscddzEZb4dVaDQHJql7mVuI5uKusLOCk9VO7YsKgm+p6 5EbIAiKEF6M6D0+BsQ3PGWybUmHNt7chDPicZ/WB9dfuwkG3oiFD9h+WITnovgqSoH9J 0K+Yy4VwR0ntanzBa7AiGzM/ehO5JZkJZU1piHSqR1PLW0zn4HP3LbmSUZoZ3g6iCPIp 9jG8MrlHT7JEbEWJvG0nvJozOxPlfvNdrC7Mu0QOEA4DQWPIxXu1hBgH/dDkBkVd9ono MIiA== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5G5MdirQj0WG7CldjnHGzWIOkKp9XQtfSmiGNPVi3g==" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:a400:162c:b0df:52d4:ca12:299b] by smtp.strato.de (RZmta 44.7 AUTH) with ESMTPSA id j074b8uBD8foG3D (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Thu, 13 Dec 2018 09:41:50 +0100 (CET) Subject: Re: use generic DMA mapping code in powerpc V4 From: Christian Zigotzky To: Christoph Hellwig Cc: 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 References: <1948cf84-49ab-543c-472c-d18e27751903@xenosoft.de> <5a2ea855-b4b0-e48a-5c3e-c859a8451ca2@xenosoft.de> <7B6DDB28-8BF6-4589-84ED-F1D4D13BFED6@xenosoft.de> <8a2c4581-0c85-8065-f37e-984755eb31ab@xenosoft.de> <424bb228-c9e5-6593-1ab7-5950d9b2bd4e@xenosoft.de> <1ecb7692-f3fb-a246-91f9-2db1b9496305@xenosoft.de> <6c997c03-e072-97a9-8ae0-38a4363df919@xenosoft.de> <4cfb3f26-74e1-db01-b014-759f188bb5a6@xenosoft.de> <82879d3f-83de-6438-c1d6-49c571dcb671@xenosoft.de> <20181212141556.GA4801@lst.de> <2242B4B2-6311-492E-BFF9-6740E36EC6D4@xenosoft.de> Message-ID: <84558d7f-5a7f-5219-0c3a-045e6b4c494f@xenosoft.de> Date: Thu, 13 Dec 2018 09:41:50 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.3 MIME-Version: 1.0 In-Reply-To: <2242B4B2-6311-492E-BFF9-6740E36EC6D4@xenosoft.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: de-DE Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12 December 2018 at 3:39PM, Christian Zigotzky wrote: > Hi Christoph, > > Thanks a lot for your reply. I will test your patches tomorrow. > > Cheers, > Christian > > Sent from my iPhone > >> On 12. Dec 2018, at 15:15, 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? >> >> >> <0001-get_required_mask.patch> >> <0002-swiotlb-dma_supported.patch> >> <0003-nommu-dma_supported.patch> >> <0004-alloc-free.patch> Today I tried the first patch (0001-get_required_mask.patch) with the last good commit (977706f9755d2d697aa6f45b4f9f0e07516efeda). Unfortunately this patch is already included in the last good commit (977706f9755d2d697aa6f45b4f9f0e07516efeda). I will try the next patch. -- Christian