Re: [PATCH v2] gpu: nova: require little endian

[Danilo Krummrich]

On Tue Apr 7, 2026 at 5:59 AM CEST, Eliot Courtney wrote:
> The driver already assumes little endian in a lot of locations. For
> example, all the code that reads RPCs out of the command queue just
> directly interprets the bytes.
>
> Make this explicit in Kconfig.
>
> Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
> ---
> The current code assumes little endian in a bunch of places. I think we
> should either explicitly decide to be generic on endianness or explicitly
> decide not to - having some handling sprinkled around in various
> locations seems confusing to me.
>
> I believe that currently e.g. `RUST` transitively depends on
> !CPU_BIG_ENDIAN, so this is more about making the decision explicit for
> nova-core rather than fixing any kind of hole.
> ---
> Changes in v2:
> - Also add to nova-drm (Thanks Danilo)
> - Did not take Reviewed-by + Acked-by because commit changed
>   substantively
> - Link to v1: https://patch.msgid.link/20260406-fix-kconfig-v1-1-8f634499f7f0@xxxxxxxxxx

Thanks for the new version -- I have one additional question in [1]. Otherwise,
going to pick up once -rc1 is out.

[1] https://lore.kernel.org/all/DHMVA3S2MZWV.1JN7WUBZLRWLV@xxxxxxxxxx/