On 11/18/25 11:15 PM, Alexandre Courbot wrote:
On Wed Nov 19, 2025 at 3:51 PM JST, John Hubbard wrote:
On 11/18/25 10:47 PM, Alexandre Courbot wrote:
On Wed Nov 19, 2025 at 3:34 PM JST, John Hubbard wrote:
On 11/18/25 6:17 PM, Alexandre Courbot wrote:
On Sat Nov 15, 2025 at 8:30 AM JST, Timur Tabi wrote:
Define some more GPU registers used to boot GSP-RM on Turing and GA100.
Nit (for the patch title): these are falcon registers, we just happen to
use them for booting the GSP. Also IIUC most of them also exist outside
of Turing.
hmmm, falcon registers are *also* GPU registers, though. You arrive here
via the GPU's PCIe BAR0. So I'm not sure there is anything wrong with
Timur's patch title, right?
I was referring to the email subject (which I should have quoted for
clarity): "gpu: nova-core: add Turing boot registers"
Yes. But what's really wrong with that? You can't boot up Turing without
booting up its GSP, which is accessed through registers that could
reasonably be referred to as GPU boot registers.
I don't really think the patch title misleads, does it?
I interpreted the title as "these registers exist on Turing only", but
it is indeed subject to interpretation. In any case it is a
non-important nit, so feel free to ignore if it parses fine.
Oh, I think I missed your point entirely. I think it's likely that
these registers really only apply to Turing, actually, because
we know that subsequent chips don't use them. (See: recent boot
success on Ampere/Ada, without these registers.)
Timur can clarify that.
thanks,
--
John Hubbard
