commit c682e4733ce80da9d042bd1d3fe88510db3aad70
author Charan Teja Reddy <charante@codeaurora.org> Thu Apr 20 19:11:20 2017 +0530
committer Charan Teja Reddy <charante@codeaurora.org> Tue Jul 25 12:40:57 2017 +0530
tree 30357102ca7a1f8efbe690b26a7212aed40c756e
parent 41337d538dbc10b6fc29579433ec58b630f8fbf6

iommu: disable smmu stalls on faulty transactions

Disable the SMMU stalls on faulty transactions by terminating it using
the CB.SCTLR register. Faulty transaction on a CB causes the back
pressure on the QSMMU transaction pipe which inturn affect the other
masters using the same SMMU. Pass the DOMAIN_ATTR_CB_STALL_DISABLE flag
to iommu_domain_set_attr api in order to use this feature.

Change-Id: Ib8fa35854ff24e0295d330c5fb79375f58c3e841
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>