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[209.132.180.67]) by mx.google.com with ESMTP id s11si13378442pgi.324.2019.01.21.06.39.56; Mon, 21 Jan 2019 06:40:11 -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=Kxkg6VdQ; 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 S1729446AbfAUOip (ORCPT + 99 others); Mon, 21 Jan 2019 09:38:45 -0500 Received: from mo4-p01-ob.smtp.rzone.de ([81.169.146.164]:14246 "EHLO mo4-p01-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729174AbfAUOio (ORCPT ); Mon, 21 Jan 2019 09:38:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1548081520; 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=9aXyl3XX6X2NaqAV5Jbua+GONqAlosKe6poqf11l4ww=; b=Kxkg6VdQAcbjBrajIaoR++oi0rWkLXwm/AkcT5gjfMvlsmaGm7ds1tdc8sw7up3nKL gxsTZh43OrjwQhhFpJc9p9ZoIrPslYAqxAPEeaL25EhptIU8BJFxvSPzs12tD2xdADOZ Tt/ztANlY7eIR1uVmW0FpP71kY22uPLvg7TW7999Mw4QPwk4x9hrDecwwsl6ElBhu1xE 0nU2f2my2KbBdm9R4mIGBFxlbvDgbQEkQzxgHSh7QYqxN+NMLkM1aefma0wdGujACW7h eHfSia+HquF7Rn/6MYCb28dl8bg4TUCEl6rJxrJ36P4Utk+K+lBTGb7uaxcWAOOh43YA VPEA== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5G5MdirQj0WG7CkOjx+xiVEQyUhLZzRcZ7jq/ONwjw==" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:a400:162c:11e9:3359:3c07:dcab] by smtp.strato.de (RZmta 44.9 AUTH) with ESMTPSA id t0203dv0LEccO8n (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); Mon, 21 Jan 2019 15:38:38 +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: <871403f2-fa7d-de15-89eb-070432e15c69@xenosoft.de> <20190118112842.GA9115@lst.de> <20190118121810.GA13327@lst.de> <20190118125500.GA15657@lst.de> <20190119130222.GA24346@lst.de> <20190119140452.GA25198@lst.de> From: Christian Zigotzky Message-ID: Date: Mon, 21 Jan 2019 15:38:38 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20190119140452.GA25198@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 Hello Christoph, Thanks for your reply. I successfully compiled a kernel (uImage) for the X5000 from your Git 'powerpc-dma.6-debug' (both patches) today. It detects the SATA hard disk drive and boots without any problems. I will test the first patch in next days. Thanks for your help, Christian On 19 January 2019 at 3:04PM, Christoph Hellwig wrote: > On Sat, Jan 19, 2019 at 02:02:22PM +0100, Christoph Hellwig wrote: >> Interesting. This suggest it is related to the use of ZONE_DMA by >> the FSL SOCs that your board uses. Let me investigate this a bit more. > As a hack to check that theory I've pushed a new commit to the > powerpc-dma.6-debug branch to use old powerpc GFP_DMA selection > with the new dma direct code: > > http://git.infradead.org/users/hch/misc.git/commitdiff/5c532d07c2f3c3972104de505d06b8d85f403f06 > > And another one that drops the addressability checks that powerpc > never had: > > http://git.infradead.org/users/hch/misc.git/commitdiff/18e7629b38465ca98f8e7eed639123a13ac3b669 > > Can you first test with both patches, and then just with the first > in case that worked? > >