From 61479ae38cb7bf6083de302598b7d491ec54168a Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Wed, 7 May 2025 22:52:34 +0900
Subject: gpu: nova-core: move Firmware to firmware module

We will extend the firmware methods, so move it to its own module
instead to keep gpu.rs focused.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250507-nova-frts-v3-7-fcb02749754d@nvidia.com
[ Don't require a bound device, remove pub visibility from Firmware
  fields, use FIRMWARE_VERSION consistently. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---
 drivers/gpu/nova-core/firmware.rs | 44 +++++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

(limited to 'drivers/gpu/nova-core/firmware.rs')

diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs
index 6e6361c59ca1..4b8a38358a4f 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -1,13 +1,49 @@
 // SPDX-License-Identifier: GPL-2.0
 
-use crate::gpu;
+//! Contains structures and functions dedicated to the parsing, building and patching of firmwares
+//! to be loaded into a given execution unit.
+
+use kernel::device;
 use kernel::firmware;
+use kernel::prelude::*;
+use kernel::str::CString;
+
+use crate::gpu;
+use crate::gpu::Chipset;
+
+pub(crate) const FIRMWARE_VERSION: &str = "535.113.01";
+
+/// Structure encapsulating the firmware blobs required for the GPU to operate.
+#[expect(dead_code)]
+pub(crate) struct Firmware {
+    booter_load: firmware::Firmware,
+    booter_unload: firmware::Firmware,
+    bootloader: firmware::Firmware,
+    gsp: firmware::Firmware,
+}
+
+impl Firmware {
+    pub(crate) fn new(dev: &device::Device, chipset: Chipset, ver: &str) -> Result<Firmware> {
+        let mut chip_name = CString::try_from_fmt(fmt!("{}", chipset))?;
+        chip_name.make_ascii_lowercase();
+
+        let request = |name_| {
+            CString::try_from_fmt(fmt!("nvidia/{}/gsp/{}-{}.bin", &*chip_name, name_, ver))
+                .and_then(|path| firmware::Firmware::request(&path, dev))
+        };
+
+        Ok(Firmware {
+            booter_load: request("booter_load")?,
+            booter_unload: request("booter_unload")?,
+            bootloader: request("bootloader")?,
+            gsp: request("gsp")?,
+        })
+    }
+}
 
 pub(crate) struct ModInfoBuilder<const N: usize>(firmware::ModInfoBuilder<N>);
 
 impl<const N: usize> ModInfoBuilder<N> {
-    const VERSION: &'static str = "535.113.01";
-
     const fn make_entry_file(self, chipset: &str, fw: &str) -> Self {
         ModInfoBuilder(
             self.0
@@ -17,7 +53,7 @@ impl<const N: usize> ModInfoBuilder<N> {
                 .push("/gsp/")
                 .push(fw)
                 .push("-")
-                .push(Self::VERSION)
+                .push(FIRMWARE_VERSION)
                 .push(".bin"),
         )
     }
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