On Mon, Sep 28, 2026 at 10:32:41AM -0500, Mario Limonciello wrote: > Actually; no. amdgpu has migrated away from PCI IDs and probes based on the > "ATI vendor" + "display class" instead. As part of the probe sequence there > is something called an IP discovery table pull from the platform that > identifies all IP blocks in the hardware.
Oh, so that big table is not processing pci ids.. OK > This IP discovery table will indicate graphics IP and that is mapped to > relevant driver code. So for example GC 11.5.1 is what you find in a Strix > Halo APU. If a future APU had exactly the same graphics IP but a different > display IP it would still be GC 11.5.1. Move this stuff to drivers/firmware and iommu and GPU can access it together? "IP discovery table" sure sounds like a platform firmware datablob to me at least? Jason
