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

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Message-ID: <f57e6d8f-d43f-e9f8-b092-e43f5019f86f@xenosoft.de>
Date:   Tue, 12 Feb 2019 20:50:20 +0100
From:   Christian Zigotzky <chzigotzky@...osoft.de>
To:     Christoph Hellwig <hch@....de>
Cc:     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 12 February 2019 at 8:31PM, Christian Zigotzky wrote:
> On 12 February 2019 at 4:25PM, Christoph Hellwig wrote:
>> On Tue, Feb 12, 2019 at 01:42:56PM +0100, Christian Zigotzky wrote:
>>> On 11 February 2019 at 08:38AM, Christoph Hellwig wrote:
>>>> On Sun, Feb 10, 2019 at 01:00:20PM +0100, Christian Zigotzky wrote:
>>>>> I tested the whole series today. The kernels boot and the P.A. Semi
>>>>> Ethernet works! :-) Thanks a lot!
>>>>>
>>>>> I also tested it in a virtual e5500 QEMU machine today. 
>>>>> Unfortunately the
>>>>> kernel crashes.
>>>> This looks like a patch I fixed in mainline a while ago, but which
>>>> the powerpc tree didn't have yet.
>>>>
>>>> I've cherry picked this commit
>>>> ("swiotlb: clear io_tlb_start and io_tlb_end in swiotlb_exit")
>>>>
>>>> and added it to the powerpc-dma.6 tree, please retry with that one.
>>>>
>>> Hello Christoph,
>>>
>>> Have you added it to the powerpc-dma.6 tree yet? The last commit was 
>>> 4 days
>>> ago.
>> I added it, but forgot to push it out.  It is there now, sorry:
>>
>> http://git.infradead.org/users/hch/misc.git/commitdiff/2cf0745b7420af4a3e871d5a970a45662dfae69c 
>>
>>
> Hi Christoph
>
> Many thanks! Your Git kernel works in a virtual e5500 machine now! :-)
>
> I think we have reached the end of testing! All things are working 
> with your DMA updates.
>
> I am looking forward to testing your DMA changes in the next merge 
> window again. :-)
>
> Cheers
> Christian
>
>
Edit: typo