tree d7f99d2fdb4c231029339e045e277d91c9d1dc56
parent 0e7d37adbe45404a76d05d4ef11544f23cf639dd
author Will Deacon <will.deacon@arm.com> 1403732791 +0100
committer Will Deacon <will.deacon@arm.com> 1415976099 +0000

iommu/arm-smmu: add support for DOMAIN_ATTR_NESTING attribute

When domains are set with the DOMAIN_ATTR_NESTING flag, we must ensure
that we allocate them to stage-2 context banks if the hardware permits
it.

This patch adds support for the attribute to the ARM SMMU driver, with
the actual stage being determined depending on the features supported
by the hardware.

Signed-off-by: Will Deacon <will.deacon@arm.com>