iommu/amd: Flush not present cache in iommu_map_page

check if there is a not-present cache present and flush it if there is.

Signed-off-by: Tom Murphy <murphyt7@tcd.ie>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Tom Murphy 2019-06-13 23:04:55 +01:00 • committed by Joerg Roedel
commit 5cd3f2e98c