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

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Date:   Fri, 7 Dec 2018 19:33:01 +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

Next step: 13c1fdec5682b6e13257277fa16aa31f342d167d (powerpc/dma: move pci_dma_dev_setup_swiotlb to fsl_pci.c)

git checkout 13c1fdec5682b6e13257277fa16aa31f342d167d

Result: The PASEMI onboard ethernet works and the X5000 boots.

— Christian

Sent from my iPhone

> On 7. Dec 2018, at 14:45, Christian Zigotzky <chzigotzky@...osoft.de> wrote:
> 
>> On 06 December 2018 at 11:55AM, Christian Zigotzky wrote:
>>> On 05 December 2018 at 3:05PM, Christoph Hellwig wrote:
>>> 
>>> Thanks.  Can you try a few stepping points in the tree?
>>> 
>>> First just with commit 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6
>>> (the first one) applied?
>>> 
>>> Second with all commits up to 5da11e49df21f21dac25a2491aa788307bdacb6b
>>> 
>>> And if that still works with commits up to
>>> c1bfcad4b0cf38ce5b00f7ad880d3a13484c123a
>>> 
>> Hi Christoph,
>> 
>> I undid the commit 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6 with the following command:
>> 
>> git checkout 7fd3bb05b73beea1f9840b505aa09beb9c75a8c6
>> 
>> Result: PASEMI onboard ethernet works again and the P5020 board boots.
>> 
>> I will test the other commits in the next days.
>> 
>> @All
>> It is really important, that you also test Christoph's work on your PASEMI and NXP boards. Could you please help us with solving the issues?
>> 
>> 'git clone git://git.infradead.org/users/hch/misc.git -b powerpc-dma.5 a'
>> 
>> Thanks,
>> Christian
>> 
>> 
> Today I tested the commit 5da11e49df21f21dac25a2491aa788307bdacb6b.
> 
> git checkout 5da11e49df21f21dac25a2491aa788307bdacb6b
> 
> The PASEMI onboard ethernet works and the P5020 board boots.
> 
> -- Christian
>