use generic DMA mapping code in powerpc V4

[Christoph Hellwig]

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