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

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Message-Id: <9ECD27D6-B039-4253-9FB9-749B41DE4CC6@xenosoft.de>
Date:   Thu, 6 Dec 2018 18:10:54 +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

Please don’t merge this code. We are still testing and trying to figure out where the problems are in the code.

— Christian

Sent from my iPhone

> On 6. Dec 2018, at 11:55, Christian Zigotzky <chzigotzky@...osoft.de> 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
>