commit 55897af63091ebc2c3f239c6a6666f748113ac50
author Christoph Hellwig <hch@lst.de> Mon Dec 03 11:43:54 2018 +0100
committer Christoph Hellwig <hch@lst.de> Thu Dec 13 21:06:17 2018 +0100
tree 49340a30e15ae65d71fc5f453559340672064d70
parent 17ac524719f3fc88c1a90528f4789e4b4f618512

dma-direct: merge swiotlb_dma_ops into the dma_direct code

While the dma-direct code is (relatively) clean and simple we actually
have to use the swiotlb ops for the mapping on many architectures due
to devices with addressing limits.  Instead of keeping two
implementations around this commit allows the dma-direct
implementation to call the swiotlb bounce buffering functions and
thus share the guts of the mapping implementation.  This also
simplified the dma-mapping setup on a few architectures where we
don't have to differenciate which implementation to use.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Tony Luck <tony.luck@intel.com>