amdxdna breaks suspend (was: Re: [PATCH v5 2/8] iommu: Remove IOMMU_DEV_FEAT_SVA)

Linus Heckemann
2026-01-16T12:09:42Z

Jason Gunthorpe <jgg@nvidia.com> writes:

> 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.

You're right, blacklisting the amdxdna driver fixes suspend, thanks for
the pointer!

@Min Ma, Lizhi Hou, dri-devel: do you have any insight into why this
might be happening?

Cheers

Linus H