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

[John Hubbard]

On 10/29/25 8:02 AM, Timur Tabi wrote:
> On Tue, 2025-10-28 at 20:03 -0700, John Hubbard wrote:
>> NVIDIA GPUs are moving away from using NV_PMC_BOOT_0 to contain
>> architecture and revision details, and will instead use NV_PMC_BOOT_42
>> in the future. NV_PMC_BOOT_0 will be zeroed out.
> 
> I don't think this is correct.  ARCH_1 in PMC_BOOT_0 will be set to 1 in future GPUs.

ah right, thanks Timur! I can change it to:

NV_PMC_BOOT's ARCH_0 (bits 28:24) will be zeroed out, and ARCH_1 (bit 8:8)
will be set to 1, which means, "refer to NV_PMC_BOOT_42".


thanks,
-- 
John Hubbard