powerpc/cell: use the generic iommu bypass code

This gets rid of a lot of clumsy code and finally allows us to mark
dma_iommu_ops const.

Includes fixes from Michael Ellerman.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christoph Hellwig 2019-02-13 08:01:09 +01:00 • committed by Michael Ellerman
commit ba767b5283
4 changed files with 20 additions and 135 deletions