Re: [PATCH v10 04/10] gpu: nova-core: falcon: remove FalconFirmware's dependency on FalconDmaLoadable

["Eliot Courtney" <ecourtney@nvidia.com>]

On Sun Mar 1, 2026 at 11:03 PM JST, Alexandre Courbot wrote:
> Not all firmware is necessarily loaded by DMA. Remove the requirement
> for `FalconFirmware` to implement `FalconDmaLoadable`, and adapt
> `Falcon`'s methods constraints accordingly.
>
> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
> ---
>  drivers/gpu/nova-core/falcon.rs | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/nova-core/falcon.rs b/drivers/gpu/nova-core/falcon.rs
> index 9eb827477e5e..450431804e1c 100644
> --- a/drivers/gpu/nova-core/falcon.rs
> +++ b/drivers/gpu/nova-core/falcon.rs
> @@ -378,7 +378,7 @@ pub(crate) trait FalconDmaLoadable {
>  /// Trait for a falcon firmware.
>  ///
>  /// A falcon firmware can be loaded on a given engine.
> -pub(crate) trait FalconFirmware: FalconDmaLoadable {
> +pub(crate) trait FalconFirmware {
>      /// Engine on which this firmware is to be loaded.
>      type Target: FalconEngine;
>  }
> @@ -521,7 +521,7 @@ fn dma_wr(
>      }
>  
>      /// Perform a DMA load into `IMEM` and `DMEM` of `fw`, and prepare the falcon to run it.
> -    fn dma_load<F: FalconFirmware<Target = E>>(
> +    fn dma_load<F: FalconFirmware<Target = E> + FalconDmaLoadable>(
>          &self,
>          dev: &Device<device::Bound>,
>          bar: &Bar0,
> @@ -660,7 +660,7 @@ pub(crate) fn is_riscv_active(&self, bar: &Bar0) -> bool {
>      }
>  
>      // Load a firmware image into Falcon memory
> -    pub(crate) fn load<F: FalconFirmware<Target = E>>(
> +    pub(crate) fn load<F: FalconFirmware<Target = E> + FalconDmaLoadable>(
>          &self,
>          dev: &Device<device::Bound>,
>          bar: &Bar0,

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>