gpu: nova-core: firmware: process the GSP bootloader

The GSP bootloader is a small RISC-V firmware that is loaded by Booter
onto the GSP core and is in charge of loading, validating, and starting
the actual GSP firmware.

It is a regular binary firmware file containing a specific header.
Create a type holding the DMA-mapped firmware as well as useful
information extracted from the header, and hook it into our firmware
structure for later use.

The GSP bootloader is stored into the `GspFirmware` structure, since it
is part of the GSP firmware package. This makes the `Firmware` structure
empty, so remove it.

Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-8-9007079548b0@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

1 files changed, 1 insertions, 17 deletions

diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs
index 10200d11bbbf..dc9645a789b0 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -15,11 +15,11 @@ use kernel::transmute::FromBytes;
 use crate::dma::DmaObject;
 use crate::falcon::FalconFirmware;
 use crate::gpu;
-use crate::gpu::Chipset;
 
 pub(crate) mod booter;
 pub(crate) mod fwsec;
 pub(crate) mod gsp;
+pub(crate) mod riscv;
 
 pub(crate) const FIRMWARE_VERSION: &str = "535.113.01";
 
@@ -36,22 +36,6 @@ fn request_firmware(
         .and_then(|path| firmware::Firmware::request(&path, dev))
 }
 
-/// Structure encapsulating the firmware blobs required for the GPU to operate.
-#[expect(dead_code)]
-pub(crate) struct Firmware {
-    bootloader: firmware::Firmware,
-}
-
-impl Firmware {
-    pub(crate) fn new(dev: &device::Device, chipset: Chipset, ver: &str) -> Result<Firmware> {
-        let request = |name| request_firmware(dev, chipset, name, ver);
-
-        Ok(Firmware {
-            bootloader: request("bootloader")?,
-        })
-    }
-}
-
 /// Structure used to describe some firmwares, notably FWSEC-FRTS.
 #[repr(C)]
 #[derive(Debug, Clone)]