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[209.132.180.67]) by mx.google.com with ESMTP id q128si21780720pfc.179.2018.12.05.02.05.19; Wed, 05 Dec 2018 02:05:34 -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; dkim=fail header.i=@xenosoft.de header.s=strato-dkim-0002 header.b=FKKMG3LO; 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 S1729089AbeLEKEn (ORCPT + 99 others); Wed, 5 Dec 2018 05:04:43 -0500 Received: from mo4-p01-ob.smtp.rzone.de ([85.215.255.53]:36928 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729178AbeLEJoK (ORCPT ); Wed, 5 Dec 2018 04:44:10 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1544003048; s=strato-dkim-0002; d=xenosoft.de; h=In-Reply-To:Date:Message-ID:From:References:Cc:To:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=Us0Y6iG1zqYJFobUUSTAv7ZQZM1Eimv3YTkHhrcbeVI=; b=FKKMG3LOp6BniIlEhS5Sw7MCBTxYvG47JkpH+qIHzt/PwiJYozMLz7kOy1zcXC6aNY HIfNQtjbcc0Qh8hySP3TVUjUz/GwHfSKB8ie9W1ZTs7rm8+xWQ0P31s39C7XCCcBjGQk xFv/ODzDjmepxhGwz4c8WTr8jdniVI+jzgAfoAqo1lvoHYXzKx8Uk0kzyxQmLummM4/E XAGZe533nCXayqvDaPsNyuCaDtl26fpXprdLK4h2h424jVRAr11AM0oO0UxAjLNFj4Ss XzTGah7d8cSpjuI3Dgg1+6rN84QamEf2Eabs3cA4Stti7cPT3fATV6/Cap8S+q/C54oq P7ig== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5G5MdirQj0WG7CkJh/ARs/ll0LP9pYXILmPj+77/lQ==" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:a400:162c:6972:d6c3:ba77:3810] by smtp.strato.de (RZmta 44.6 AUTH) with ESMTPSA id 404b20uB59i6eZb (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); Wed, 5 Dec 2018 10:44:06 +0100 (CET) Subject: Re: use generic DMA mapping code in powerpc V4 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: <87zhttfonk.fsf@concordia.ellerman.id.au> <4d4e3cdd-d1a9-affe-0f63-45b8c342bbd6@xenosoft.de> <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> From: Christian Zigotzky Message-ID: Date: Wed, 5 Dec 2018 10:44:05 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 In-Reply-To: <20181204142426.GA2743@lst.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: de-DE Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04 December 2018 at 3:24PM, Christoph Hellwig wrote: > On Tue, Dec 04, 2018 at 10:53:39AM +0100, Christian Zigotzky wrote: >> I don't know why this kernel doesn't recognize the hard disks connected to >> my physical P5020 board and why the onboard ethernet on my PASEMI board >> doesn't work. (dma_direct_map_page: overflow) > Do you know if this actually works for the baseline before my patches? > E.g. with commit 721c01ba8b46ddb5355bd6e6b3bbfdabfdf01e97 ? > Hi Christoph, 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. @All Could you please test Christoph's kernel on your PASEMI and NXP boards? Download: 'git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.5 a' Thanks, Christian