Re: [PATCH] iommu/arm-smmu-v3: fix event handling soft lockup

2022-02-08 Thread Will Deacon
On Wed, 19 Jan 2022 07:07:54 +, Zhou Guanghui wrote: > During event processing, events are read from the event queue one > by one until the queue is empty.If the master device continuously > requests address access at the same time and the SMMU generates > events, the cyclic processing of the

[PATCH] iommu/arm-smmu-v3: fix event handling soft lockup

2022-01-19 Thread Zhou Guanghui via iommu
During event processing, events are read from the event queue one by one until the queue is empty.If the master device continuously requests address access at the same time and the SMMU generates events, the cyclic processing of the event takes a long time and softlockup warnings may be reported.