Re: [PATCH] iommu/arm-smmu-qcom: Only enable stall on smmu-v2

From: Will Deacon
Date: Thu Dec 19 2024 - 06:30:34 EST


On Mon, Dec 16, 2024 at 09:10:17AM -0800, Rob Clark wrote:
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
>
> On mmu-500, stall-on-fault seems to stall all context banks, causing the
> GMU to misbehave. So limit this feature to smmu-v2 for now.

MMU-500 has public documentation so please can you dig up what the
actual behaviour is rather than guess?

> This fixes an issue with an older mesa bug taking outo the system
> because of GMU going off into the year.

Sorry, but I don't understand this sentence.

Will