Re: [PATCH v3 10/13] gpu: nova-core: falcon: allow DMA transfers to read from a framebuffer address

[Eliot Courtney]

On Tue Nov 10, 2026 at 7:20 PM JST, Alexandre Courbot wrote:
> The r000 boot protocol has a load-and-execute event in which GSP-RM asks
> the driver to load a Heavy-Secured binary from framebuffer memory into
> the GSP falcon's memory by DMA in order to run it.
>
> Nova-core's falcon DMA loading method currently only supports loading
> from a DMA object that the driver has allocated, so there is no way to
> copy an image from framebuffer memory that an event supplied.
>
> Address this by making the source of a falcon DMA transfer an enum,
> which can be either a DMA object, or a GPU framebuffer address.
>
> The framebuffer address source has no user yet, but will be used by the
> r000 boot protocol.
>
> Signed-off-by: Alexandre Courbot <acourbot@xxxxxxxxxx>
> ---

Reviewed-by: Eliot Courtney <ecourtney@xxxxxxxxxx>