FSP is a hardware unit that runs FMC firmware.
Co-developed-by: Alexandre Courbot <[email protected]>
Signed-off-by: Alexandre Courbot <[email protected]>
Signed-off-by: John Hubbard <[email protected]>
---
drivers/gpu/nova-core/firmware.rs | 1 +
drivers/gpu/nova-core/firmware/fsp.rs | 44 +++++++++++++++++++++++++++
2 files changed, 45 insertions(+)
create mode 100644 drivers/gpu/nova-core/firmware/fsp.rs
diff --git a/drivers/gpu/nova-core/firmware.rs
b/drivers/gpu/nova-core/firmware.rs
index e45b91bb45a3..5cbb8be7434f 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -24,6 +24,7 @@
};
pub(crate) mod booter;
+pub(crate) mod fsp;
pub(crate) mod fwsec;
pub(crate) mod gsp;
pub(crate) mod riscv;
diff --git a/drivers/gpu/nova-core/firmware/fsp.rs
b/drivers/gpu/nova-core/firmware/fsp.rs
new file mode 100644
index 000000000000..80401b964488
--- /dev/null
+++ b/drivers/gpu/nova-core/firmware/fsp.rs
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! FSP is a hardware unit that runs FMC firmware.
+
+use kernel::{
+ device,
+ prelude::*, //
+};
+
+use crate::{
+ dma::DmaObject,
+ firmware::elf,
+ gpu::Chipset, //
+};
+
+#[expect(unused)]
+pub(crate) struct FspFirmware {
+ /// FMC firmware image data (only the .image section)
+ fmc_image: DmaObject,
+ /// Full FMC ELF data (for signature extraction)
+ fmc_full: DmaObject,
+}
+
+impl FspFirmware {
+ #[expect(unused)]
+ pub(crate) fn new(
+ dev: &device::Device<device::Bound>,
+ chipset: Chipset,
+ ver: &str,
+ ) -> Result<Self> {
+ let fw = super::request_firmware(dev, chipset, "fmc", ver)?;
+
+ // FSP expects only the .image section, not the entire ELF file
+ let fmc_image_data = elf::elf_section(fw.data(),
"image").ok_or_else(|| {
+ dev_err!(dev, "FMC ELF file missing 'image' section\n");
+ EINVAL
+ })?;
+
+ Ok(Self {
+ fmc_image: DmaObject::from_data(dev, fmc_image_data)?,
+ fmc_full: DmaObject::from_data(dev, fw.data())?,
+ })
+ }
+}
--
2.52.0
