iommu/arm-smmu: Track context bank state

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Echoing what we do for Stream Map Entries, maintain a software shadow
state for context bank configuration. With this in place, we are mere
moments away from blissfully easy suspend/resume support.

Reviewed-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[will: fix sparse warning by only clearing .cfg during domain destruction]
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Robin Murphy 2017-08-08 14:56:14 +01:00 • committed by Will Deacon

parent 7aa8619a66

commit 90df373cc6

1 changed files with 97 additions and 59 deletions

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drivers/iommu/arm-smmu.c

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