iommu/arm-smmu: Allow using a threaded handler for context interrupts

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Threaded IRQ handlers run in a less critical context compared to normal
IRQs, so they can perform more complex and time-consuming operations
without causing significant delays in other parts of the kernel.
During a context fault, it might be needed to do more processing and
gather debug information from TBUs in the handler. These operations may
sleep, so add an option to use a threaded IRQ handler in these cases.

Signed-off-by: Georgi Djakov <quic_c_gdjako@quicinc.com>
Link: https://lore.kernel.org/r/20240417133731.2055383-4-quic_c_gdjako@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>

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Georgi Djakov 2024-04-17 06:37:27 -07:00 • committed by Will Deacon

parent 414ecb0308

commit 960be6e10d

2 changed files with 11 additions and 2 deletions

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

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1

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

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