iommu/ipmmu-vmsa: Add optional root device feature

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Add root device handling to the IPMMU driver by allowing certain
DT compat strings to enable has_cache_leaf_nodes that in turn will
support both root devices with interrupts and leaf devices that
face the actual IPMMU consumer devices.

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 21:29:36 +09:00 • committed by Alex Williamson

parent 33f3ac9b51

commit fd5140e29a

1 changed files with 73 additions and 17 deletions

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drivers/iommu/ipmmu-vmsa.c

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