[PATCH] agp/amd64: Only try host-bridges when agp_try_unsupported is set

Hans de Goede hansg at kernel.org
Wed Jun 25 14:09:48 UTC 2025


Hi,

On 25-Jun-25 3:38 PM, Lukas Wunner wrote:
> On Wed, Jun 25, 2025 at 01:24:11PM +0200, Hans de Goede wrote:
>> On modern AMD Ryzen systems the IOMMU code initializes early on adding
>> resources to the "00:00.2 IOMMU" PCI-device without binding a driver to
>> it (because it needs to run early).
> 
> There's already a patch pending and a discussion ongoing for this issue:
> 
> https://lore.kernel.org/r/f8ff40f35a9a5836d1371f60e85c09c5735e3c5e.1750497201.git.lukas@wunner.de/

Thank you for pointing that out. I've replied in that thread.

Regards,

Hans




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