| commit | bfff88ec1afefb76669d29da9fc90d5ad7c53ec3 | [log] [tgz] |
|---|---|---|
| author | Will Deacon <will@kernel.org> | Tue Aug 20 14:28:59 2019 +0100 |
| committer | Will Deacon <will@kernel.org> | Wed Aug 21 17:58:42 2019 +0100 |
| tree | ff9242625105f0aa86d15e571c631cdff4a4ad28 | |
| parent | 7314ca8699e1defd6f2883f203c0e828a4f51f9f [diff] |
iommu/arm-smmu-v3: Rework enabling/disabling of ATS for PCI masters To prevent any potential issues arising from speculative Address Translation Requests from an ATS-enabled PCIe endpoint, rework our ATS enabling/disabling logic so that we enable ATS at the SMMU before we enable it at the endpoint, and disable things in the opposite order. Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Will Deacon <will@kernel.org>