Re: [PATCH v4 27/33] gpu: nova-core: Hopper/Blackwell: larger WPR2 (GSP) heap

[Danilo Krummrich]

On Tue Feb 10, 2026 at 3:45 AM CET, John Hubbard wrote:
> @@ -74,7 +94,7 @@ fn management_overhead(fb_size: u64) -> u64 {
>          u64::from(bindings::GSP_FW_HEAP_PARAM_SIZE_PER_GB_FB)
>              .saturating_mul(fb_size_gb)
>              .align_up(GSP_HEAP_ALIGNMENT)
> -            .unwrap_or(u64::MAX)
> +            .expect("management_overhead alignment overflow")

Ultimately, the relevant value for this calculation (fb_size) comes from the
hardware through a register read if I'm not mistaken, we shouldn't panic on
that, but rather handle is as an error if the read value is not plausible.