Re: [PATCH 04/11] gpu: nova-core: add support for Turing/GA100 fwsignature

[Lyude Paul <lyude@redhat.com>]

Reviewed-by: Lyude Paul <lyude@redhat.com>

On Fri, 2025-11-14 at 17:30 -0600, Timur Tabi wrote:
> Turing and GA100 share the same GSP-RM firmware binary, and the
> signature ELF section is labeled ".fwsignature_tu10x".
> 
> Signed-off-by: Timur Tabi <ttabi@nvidia.com>
> ---
>  drivers/gpu/nova-core/firmware/gsp.rs | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/nova-core/firmware/gsp.rs b/drivers/gpu/nova-core/firmware/gsp.rs
> index 0549805282ab..aa5a6433c377 100644
> --- a/drivers/gpu/nova-core/firmware/gsp.rs
> +++ b/drivers/gpu/nova-core/firmware/gsp.rs
> @@ -163,9 +163,14 @@ pub(crate) fn new<'a, 'b>(
>          let fw_section = elf::elf64_section(fw.data(), ".fwimage").ok_or(EINVAL)?;
>  
>          let sigs_section = match chipset.arch() {
> -            Architecture::Ampere => ".fwsignature_ga10x",
> +            Architecture::Turing | Architecture::Ampere =>
> +                if chipset > Chipset::GA100 {
> +                    ".fwsignature_ga10x"
> +                } else {
> +                    // GA100 uses the same firmware as Turing
> +                    ".fwsignature_tu10x"
> +                },
>              Architecture::Ada => ".fwsignature_ad10x",
> -            _ => return Err(ENOTSUPP),
>          };
>          let signatures = elf::elf64_section(fw.data(), sigs_section)
>              .ok_or(EINVAL)

-- 
Cheers,
 Lyude Paul (she/her)
 Senior Software Engineer at Red Hat

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