iommu/arm-smmu-v3: Move CD table to arm_smmu_master

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With this change, each master will now own its own CD table instead of
sharing one with other masters attached to the same domain. Attaching a
stage 1 domain installs CD entries into the master's CD table. SVA
writes its CD entries into each master's CD table if the domain is
shared across masters.

Also add the device to the devices list before writing the CD to the
table so that SVA will know that the CD needs to be re-written to this
device's CD table as well if it decides to update the CD's ASID
concurrently with this function.

Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Michael Shavit <mshavit@google.com>
Link: https://lore.kernel.org/r/20230915211705.v8.6.Ice063dcf87d1b777a72e008d9e3406d2bcf6d876@changeid
Signed-off-by: Will Deacon <will@kernel.org>

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This commit is contained in:

Michael Shavit 2023-09-15 21:17:37 +08:00 • committed by Will Deacon

parent 24503148c5

commit 10e4968cd5

2 changed files with 58 additions and 49 deletions

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100

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

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7

drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h

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