linux-kernel - Re: use generic DMA mapping code in powerpc V4

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Date:   Thu, 29 Nov 2018 18:03:51 +0100
From:   Christoph Hellwig <hch@....de>
To:     Christian Zigotzky <chzigotzky@...osoft.de>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Christoph Hellwig <hch@....de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>, linux-arch@...r.kernel.org,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Olof Johansson <olof@...om.net>
Subject: Re: use generic DMA mapping code in powerpc V4

On Thu, Nov 29, 2018 at 01:05:23PM +0100, Christian Zigotzky wrote:
> I compiled a test kernel from the following Git today.
>
> http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/powerpc-dma.4
>
> Command: git clone git://git.infradead.org/users/hch/misc.git -b 
> powerpc-dma.4 a
>
> Unfortunately I get some DMA error messages and the PASEMI ethernet doesn't 
> work anymore.

What kind of machine is this (and your other one)?  Can you send me
(or point me to) the .config files?