From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by kanga.kvack.org (Postfix) with ESMTP id 312AC6B5819 for ; Fri, 30 Nov 2018 08:10:59 -0500 (EST) Received: by mail-wm1-f70.google.com with SMTP id t62-v6so4598024wmg.6 for ; Fri, 30 Nov 2018 05:10:59 -0800 (PST) Received: from newverein.lst.de (verein.lst.de. [213.95.11.211]) by mx.google.com with ESMTPS id a10si3859905wrd.333.2018.11.30.05.10.57 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 30 Nov 2018 05:10:57 -0800 (PST) Date: Fri, 30 Nov 2018 14:10:56 +0100 From: Christoph Hellwig Subject: Re: use generic DMA mapping code in powerpc V4 Message-ID: <20181130131056.GA5211@lst.de> References: <20181114082314.8965-1-hch@lst.de> <20181127074253.GB30186@lst.de> <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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8694431d-c669-b7b9-99fa-e99db5d45a7d@xenosoft.de> Sender: owner-linux-mm@kvack.org List-ID: To: Christian Zigotzky Cc: Christoph Hellwig , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , linux-arch@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Olof Johansson On Fri, Nov 30, 2018 at 01:23:20PM +0100, Christian Zigotzky wrote: > Hi Christoph, > > Thanks a lot for your fast reply. > > On 30 November 2018 at 11:53AM, Christoph Hellwig wrote: >> Hi Christian, >> >> for such a diverse architecture like powerpc we'll have to rely on >> users / non core developers like you to help with testing. > I see. I will help as good as I can. >> >> Can you try the patch below for he cyrus config? > Yes, of course. I patched your Git kernel and after that I compiled it > again. U-Boot loads the kernel and the dtb file. Then the kernel starts but > it doesn't find any hard disks (partitions). Interesting. Does it find the storage controller (what kind of storage does it use?). For the PASEMI board can you test the attached patch? Also are you using Compact Flash cards on that system? > @All > Could you please also test Christoph's kernel on your PASEMI and NXP > boards? Download: 'git clone git://git.infradead.org/users/hch/misc.git -b > powerpc-dma.4 a' FYI, I've pushed a new powerpc-dma.5 with the various fixes discussed in this thread.