Re: [PATCH v5 2/8] iommu: Remove IOMMU_DEV_FEAT_SVA

Jason Gunthorpe
2025-12-30T01:19:20Z

On Thu, Dec 25, 2025 at 10:05:59PM +0100, Linus Heckemann wrote:
> It appears the code removed here was not in fact entirely dead; my 2024
> gpd win mini ("G1617-01", with a Ryzen 8840U) fails to suspend
> correctly, and I bisected the issue to this commit.

The only behavior change this patch had that could be relavent to a
Ryzen was in drivers/accel/amdxdna/aie2_pci.c - are you using this
driver?

Prior to this patch amdxdna would have failed to load in configs
without an iommu as iommu_dev_enable_feature() would have
failed. After this patch it will load successfully.

If so then that driver presmuably doesn't have working power
management in your system.

Jason