iommu/arm-smmu-v3-test: Test masters with stall enabled

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At the moment, the SMMUv3 unit tests assume ATS is always enabled,
although this is sufficient to test hitless/non-hitless transitions,
but exercising other features is useful to check ste/cd population
logic (for example the .get_used logic).

Add an enum where bits define features per-master, at the moment there
is only ATS and STALLs which are mutually exclusive, but this would
make it easier to extend with other features in the future.

Also, Add 2 more tests for s1 <-> s2 transitions with stalls enabled.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Link: https://lore.kernel.org/r/20240830110349.797399-3-smostafa@google.com
Signed-off-by: Will Deacon <will@kernel.org>

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Mostafa Saleh 2024-08-30 11:03:48 +00:00 • committed by Will Deacon

parent ce7cb08e22

commit 070e326f32

1 changed files with 62 additions and 21 deletions

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

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