NetBSD AMDGPU Cezanne: Best Way?

[wwr lowkstupidaf <wwr.lowkstupidaf.2010%gmail.com@localhost>]

Okay, so some Exposition: I have a ThinkPad E14 Gen 4, and it uses an
AMD Ryzen 5625U with integrated graphics (cezanne generation).
However, netbsd doesn't appear to support or even have the pci id for
cezanne cards in the driver.

How do I go about implementation? Do I:
A: Hack on the existing drm version to add basic cezanne support, or
B: try my hand at porting a newer drm version to netbsd

Help would be appreciated! Also, does the driver work with Renoir?

- RWX, professional idiot at his wits end