[PATCH v8 3/3] iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

Robert Richter robert.richter at cavium.com
Wed Jun 21 11:19:47 PDT 2017


On 20.06.17 19:47:39, Geetha sowjanya wrote:
> From: Geetha Sowjanya <geethasowjanya.akula at cavium.com>
> 
> Cavium ThunderX2 SMMU doesn't support MSI and also doesn't have unique irq
> lines for gerror, eventq and cmdq-sync.
> 
> SHARED_IRQ option is set as a errata workaround, which allows to share the irq
> line by register single irq handler for all the interrupts.

I found the entry in silicon-errata.txt missing, is that on purpose?

-Robert

> 
> Signed-off-by: Geetha sowjanya <gakula at caviumnetworks.com>
> ---
>  .../devicetree/bindings/iommu/arm,smmu-v3.txt      |    5 ++
>  drivers/iommu/arm-smmu-v3.c                        |   73 ++++++++++++++++----
>  2 files changed, 64 insertions(+), 14 deletions(-)



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