iommu/arm-smmu: Abstract GR1 accesses

Introduce some register access abstractions which we will later use to
encapsulate various quirks. GR1 is the easiest page to start with.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Robin Murphy 2019-08-15 19:37:29 +01:00 • committed by Will Deacon
commit aadbf2143a