This implements iova_to_phys for AMD IOMMU v1 pagetable,
which will be used by the IO page table framework.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20201215073705.123786-12-suravee.suthikulpanit@amd.comSigned-off-by: Joerg Roedel <jroedel@suse.de>