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Date:   Tue, 4 Dec 2018 15:24:26 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Christian Zigotzky <chzigotzky@xenosoft.de>
Cc:     Christoph Hellwig <hch@lst.de>, linux-arch@vger.kernel.org,
        Darren Stevens <darren@stevens-zone.net>,
        linux-kernel@vger.kernel.org, Julian Margetson <runaway@candw.ms>,
        linux-mm@kvack.org, iommu@lists.linux-foundation.org,
        Paul Mackerras <paulus@samba.org>,
        Olof Johansson <olof@lixom.net>, linuxppc-dev@lists.ozlabs.org
Subject: Re: use generic DMA mapping code in powerpc V4
Message-ID: <20181204142426.GA2743@lst.de>
References: <87zhttfonk.fsf@concordia.ellerman.id.au> <4d4e3cdd-d1a9-affe-0f63-45b8c342bbd6@xenosoft.de> <20181129170351.GC27951@lst.de> <d0e04a85-f17d-414e-6fea-971414417430@xenosoft.de> <20181130105346.GB26765@lst.de> <8694431d-c669-b7b9-99fa-e99db5d45a7d@xenosoft.de> <20181130131056.GA5211@lst.de> <25999587-2d91-a63c-ed38-c3fb0075d9f1@xenosoft.de> <c5202d29-863d-1377-0e2d-762203b317e2@xenosoft.de> <58c61afb-290f-6196-c72c-ac7b61b84718@xenosoft.de>
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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 ?