iommu/arm-smmu-v3: Test the STE S1DSS functionality

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S1DSS brings in quite a few new transition pairs that are
interesting. Test to/from S1DSS_BYPASS <-> S1DSS_SSID0, and
BYPASS <-> S1DSS_SSID0.

Test a contrived non-hitless flow to make sure that the logic works.

Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Michael Shavit <mshavit@google.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/12-v9-5cd718286059+79186-smmuv3_newapi_p2b_jgg@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>

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Jason Gunthorpe 2024-06-25 09:37:43 -03:00 • committed by Will Deacon

parent ce26ea9e6e

commit 3b5302cbb0

1 changed files with 108 additions and 5 deletions

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drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-test.c

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