Re: [PATCH v4 3/7] drm: nova: Add chipid enum to nova-drm UAPI

[M Henning]

On Tue, Aug 11, 2026 at 1:12 AM Alistair Popple <apopple@xxxxxxxxxx> wrote:
> +/*
> + * Opaque chipids. These may be used to determine what chip a particular GPU is
> + * based on the identifier but the values themselves should not be assumed to
> + * carry any particular meaning.
> + */

You say this is opaque, but the userspace MR you posted already treats
the values as non-opaque in eg. sm_for_chipset.
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/43352/diffs?commit_id=945a8e7c51939577526974b342c8dc6bafc3372f
So, I guess my question is, is is opaque or not?

I don't see much of a reason to make it opaque since the chipset has
had the same structure on the hardware level for 30 years, so I don't
expect it to change too often. Truly treating this as opaque would
likely require a small refactor on the userspace side without much
value. (I realize this has already been discussed a bit on the
previous version.)