[PATCH] Revert "iommu/arm-smmu-v3: Decrease the queue size of evtq and priq"

Will Deacon will at kernel.org
Wed Dec 15 02:49:30 PST 2021


On Tue, 7 Dec 2021 14:32:48 +0800, Zhou Wang wrote:
> The commit f115f3c0d5d8 ("iommu/arm-smmu-v3: Decrease the queue size of
> evtq and priq") decreases evtq and priq, which may lead evtq/priq to be
> full with fault events, e.g HiSilicon ZIP/SEC/HPRE have maximum 1024 queues
> in one device, every queue could be binded with one process and trigger a
> fault event. So let's revert f115f3c0d5d8.
> 
> In fact, if an implementation of SMMU really does not need so long evtq
> and priq, value of IDR1_EVTQS and IDR1_PRIQS can be set to proper ones.
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] Revert "iommu/arm-smmu-v3: Decrease the queue size of evtq and priq"
      https://git.kernel.org/will/c/477436699e78

Cheers,
-- 
Will

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