Re: [PATCH v3 2/2] gpu: nova-core: add boot42 support for next-gen GPUs

From: John Hubbard

Date: Wed Oct 29 2025 - 21:07:31 EST


On 10/29/25 6:01 PM, Timur Tabi wrote:
On Wed, 2025-10-29 at 17:35 -0700, John Hubbard wrote:
        // "Future" GPUs (some time after Rubin) will set `architecture_0`
        // to 0, and `architecture_1` to 1, and put the architecture details in
        // boot42 instead.

I don't want to kick a dead horse here, but aren't the architecture details already in boot42
for Turing? I thought the whole point was that we don't need boot0 any more, and only Nouveau
has to worry about boot0 vs boot42.

Yes, but someone can still plug in a pre-Turing GPU and try to
boot up with nova-core.ko on the system.

So it's important to avoid getting into trouble in that case.

thanks,
John Hubbard