iommu/ipmmu-vmsa: IPMMU device is 40-bit bus master

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The r8a7795 IPMMU supports 40-bit bus mastering. Both
the coherent DMA mask and the streaming DMA mask are
set to unlock the 40-bit address space for coherent
allocations and streaming operations.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

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Magnus Damm 2017-10-16 21:30:07 +09:00 • committed by Alex Williamson

parent cda52fcd99

commit 1c894225bf

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drivers/iommu/ipmmu-vmsa.c

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