use generic DMA mapping code in powerpc V4

[Christian Zigotzky]

Hi Christoph,

Thanks a lot for the updates. I will test the full branch tomorrow.

Cheers,
Christian

Sent from my iPhone

> On 29. Jan 2019, at 17:34, Christoph Hellwig <hch at lst.de> wrote:
> 
>> On Tue, Jan 29, 2019 at 05:14:11PM +0100, Christoph Hellwig wrote:
>>> On Tue, Jan 29, 2019 at 04:03:32PM +0100, Christian Zigotzky wrote:
>>> Hi Christoph,
>>> 
>>> I compiled kernels for the X5000 and X1000 from your new branch 
>>> 'powerpc-dma.6-debug.2' today. The kernels boot and the P.A. Semi Ethernet 
>>> works!
>> 
>> Thanks for testing!  I'll prepare a new series that adds the other
>> patches on top of this one.
> 
> And that was easier than I thought - we just had a few patches left
> in powerpc-dma.6, so I've rebased that branch on top of
> powerpc-dma.6-debug.2:
> 
>    git://git.infradead.org/users/hch/misc.git powerpc-dma.6
> 
> Gitweb:
> 
>    http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/powerpc-dma.6
> 
> I hope the other patches are simple enough, so just testing the full
> branch checkout should be fine for now.