Hello Fred,

On Fri, 2021-08-27 at 19:06 +0200, Frederic Barrat wrote:

I think it looks ok now as it was mostly me who was misunderstanding
one 
part of the previous iteration.
Reviewed-by: Frederic Barrat <redacted>

Thank you for reviewing this series!

Sorry for the late review, I was enjoying some time off. And thanks
for 
that series, I believe it should help with those bugs complaining
about 
lack of DMA space. It was also very educational for me, thanks to you
and Alexey for your detailed answers.

Working on this series caused me to learn a lot about how DMA and IOMMU
works in Power, and it was a great experience. Thanks to Alexey who
helped and guided me through this!

Best regards,
Leonardo Bras