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

[John Hubbard]

On 8/25/26 6:27 PM, Alistair Popple wrote:
> On 2026-08-26 at 07:13 +1000, John Hubbard <jhubbard@xxxxxxxxxx> wrote...
>> On 8/25/26 1:53 PM, Danilo Krummrich wrote:
>>> On Tue Aug 25, 2026 at 9:13 AM CEST, Alistair Popple wrote:
>> ...
> Sure. Two questions:
> 
> 1) Do we also need to provide the decoded implementation value?

User space needs to:

a) Know enough about the GPU to be able to choose an SM version (and
probably a few other things) which in turn is eventually required in
order to run GPU programs, as shown in your merge request[1].

b) Display GPU information to the user.

c) I'm sure to be overlooking something.

> 2) If we provide the decoded values why do we need to expose the chip-id at all?
 OK, so maybe we don't?

[1] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/43352/diffs?commit_id=945a8e7c51939577526974b342c8dc6bafc3372f#3bb2fa8303917a2ad83e2239c2cae842dfaa594f

thanks,
-- 
John Hubbard