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

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Date:   Tue, 4 Dec 2018 15:24:26 +0100
From:   Christoph Hellwig <hch@....de>
To:     Christian Zigotzky <chzigotzky@...osoft.de>
Cc:     Christoph Hellwig <hch@....de>, linux-arch@...r.kernel.org,
        Darren Stevens <darren@...vens-zone.net>,
        linux-kernel@...r.kernel.org, Julian Margetson <runaway@...dw.ms>,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org,
        Paul Mackerras <paulus@...ba.org>,
        Olof Johansson <olof@...om.net>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4

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 ?