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[209.132.180.67]) by mx.google.com with ESMTP id 3si3749799plv.258.2019.01.15.09.16.44; Tue, 15 Jan 2019 09:17:07 -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=GL+f6a3z; 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 S1730127AbfAON4k (ORCPT + 99 others); Tue, 15 Jan 2019 08:56:40 -0500 Received: from mo4-p02-ob.smtp.rzone.de ([85.215.255.82]:14698 "EHLO mo4-p02-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730117AbfAON4j (ORCPT ); Tue, 15 Jan 2019 08:56:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1547560597; 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=qjQYj2poIqFNPGRwB16+nYsywTx1PQvvhTI5rvcaBgI=; b=GL+f6a3zzqLQAUghO+T4vIv7rbtdbadDQoPzy1rbizXCzlK8eku7C1UitaT9uVt30r GiEALfcqKJgFp8vmNSwr1DZ26PhNq71tJwnyIt+JyYo6du1V2jvvofTwXOGnwEnfUNco gzcQShOIQSxbfa4eeSwU5GUBbtow9AhN8TgR10slVMKF2CAAGWGo855NIBk/Zy9VQzk4 JTS5nazSIrwp0qJV3h8bTl+1tMYbZygsC4FERGbiH2/VCcQsOKMMAPJ3tFarAEvyohB5 Vn+MkL0Yr3nwoJ0mBvYyKEP5x6FXbYP5pVRa3cbFxodqdJn3dvYyH3O4Jb4EdnnbIzC0 tOlw== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5G5MdirQj0WG7CkNi0C2kzEbDQg0vrQvOCYvo/qC" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:a400:162c:25bb:7249:5b2a:1f0] by smtp.strato.de (RZmta 44.9 AUTH) with ESMTPSA id t0203dv0FDuYsN4 (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); Tue, 15 Jan 2019 14:56:34 +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: <008c981e-bdd2-21a7-f5f7-c57e4850ae9a@xenosoft.de> <20190103073622.GA24323@lst.de> <71A251A5-FA06-4019-B324-7AED32F7B714@xenosoft.de> <1b0c5c21-2761-d3a3-651b-3687bb6ae694@xenosoft.de> <3504ee70-02de-049e-6402-2d530bf55a84@xenosoft.de> <23284859-bf0a-9cd5-a480-2a7fd7802056@xenosoft.de> <075f70e3-7a4a-732f-b501-05a1a8e3c853@xenosoft.de> <21f72a6a-9095-7034-f169-95e876228b2a@xenosoft.de> <27148ac2-2a92-5536-d886-2c0971ab43d9@xenosoft.de> <20190115133558.GA29225@lst.de> From: Christian Zigotzky Message-ID: <685f0c06-af1b-0bec-ac03-f9bf1f7a2b35@xenosoft.de> Date: Tue, 15 Jan 2019 14:56:34 +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: <20190115133558.GA29225@lst.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 15 January 2019 at 2:35PM, Christoph Hellwig wrote: > On Tue, Jan 15, 2019 at 11:55:25AM +0100, Christian Zigotzky wrote: >> Next step: 21074ef03c0816ae158721a78cabe9035938dddd (powerpc/dma: use the >> generic direct mapping bypass) >> >> git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.6 a >> >> git checkout 21074ef03c0816ae158721a78cabe9035938dddd >> >> I was able to compile the kernel for the AmigaOne X1000 (Nemo board with PA >> Semi PA6T-1682M SoC). It boots but the PA Semi onboard ethernet doesn't >> work. > Thanks. But we are exactly missing the steps that are relevant. I've > pushed a fixed up powerpc-dma.6 tree, which will only change starting from > the first commit that didn't link. > > The first commit that changed from the old one is this one: > > http://git.infradead.org/users/hch/misc.git/commitdiff/257002094bc5935dd63207a380d9698ab81f0775 > > which was that one that your compile failed on first. > > Thanks again for all your work! > Thank you! I tried the commit 240d7ecd7f6fa62e074e8a835e620047954f0b28 (powerpc/dma: use the dma-direct allocator for coherent platforms) again. git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.6 a git checkout 240d7ecd7f6fa62e074e8a835e620047954f0b28 I modified the 'dma.c' patch because of the undefined references to '__dma_nommu_free_coherent' and '__dma_nommu_alloc_coherent': --- @@ -163,8 +99,13 @@ static inline void dma_nommu_sync_single(struct device *dev,  #endif  const struct dma_map_ops dma_nommu_ops = { +       .alloc                          = dma_direct_alloc, +       .free                           = dma_direct_free,         .map_sg                         = dma_nommu_map_sg,         .unmap_sg                       = dma_nommu_unmap_sg,         .dma_supported                  = dma_direct_supported, --- The X1000 boots and the PASEMI onboard ethernet works! X5000 (P5020 board): U-Boot loads the kernel and the dtb file. Then the kernel starts but it doesn't find any hard disks (partitions). -- Christian