Re: [PATCH v4 03/10] iommu/arm-smmu-v3: Store IOTLB cache tags in struct arm_smmu_attach_state

Jason Gunthorpe
2026-04-10T21:41:21Z

On Fri, Apr 10, 2026 at 02:23:48PM -0700, Nicolin Chen wrote:

> Reworking the SVA code, I found arm_smmu_update_s1_domain_cd_entry
> is marked as __maybe_unused and not getting called anywhere(?). Do
> you recall why we kept it?

I intended to send the vBTM support that uses it, and now that this is
done it can work properly without races. So lets hang on, I was
meaning to look at that soon

Jason