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Message-Id: <20250501-nova-frts-v2-16-b4a137175337@nvidia.com>
Date: Thu, 01 May 2025 21:58:34 +0900
From: Alexandre Courbot <acourbot@...dia.com>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>,
Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
Björn Roy Baron <bjorn3_gh@...tonmail.com>,
Benno Lossin <benno.lossin@...ton.me>,
Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>,
Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
Jonathan Corbet <corbet@....net>
Cc: John Hubbard <jhubbard@...dia.com>, Ben Skeggs <bskeggs@...dia.com>,
Joel Fernandes <joelagnelf@...dia.com>, Timur Tabi <ttabi@...dia.com>,
Alistair Popple <apopple@...dia.com>, linux-kernel@...r.kernel.org,
rust-for-linux@...r.kernel.org, nouveau@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, Alexandre Courbot <acourbot@...dia.com>
Subject: [PATCH v2 16/21] gpu: nova-core: firmware: add ucode descriptor
used by FWSEC-FRTS
FWSEC-FRTS is the first firmware we need to run on the GSP falcon in
order to initiate the GSP boot process. Introduce the structure that
describes it.
Signed-off-by: Alexandre Courbot <acourbot@...dia.com>
---
drivers/gpu/nova-core/firmware.rs | 43 +++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs
index cb79d039948858e657c9a23a62ed27ff780ac169..1eb216307cd01d975b3d5beda1dc516f34b4b3f2 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -45,6 +45,49 @@ pub(crate) fn new(
}
}
+/// Structure used to describe some firmwares, notably FWSEC-FRTS.
+#[repr(C)]
+#[derive(Debug, Clone)]
+pub(crate) struct FalconUCodeDescV3 {
+ /// Header defined by `NV_BIT_FALCON_UCODE_DESC_HEADER_VDESC*` in OpenRM.
+ ///
+ /// Bits `31:16` contain the size of the header, after which the actual ucode data starts.
+ hdr: u32,
+ /// Stored size of the ucode after the header.
+ stored_size: u32,
+ /// Offset in `DMEM` at which the signature is expected to be found.
+ pub(crate) pkc_data_offset: u32,
+ /// Offset after the code segment at which the app headers are located.
+ pub(crate) interface_offset: u32,
+ /// Base address at which to load the code segment into `IMEM`.
+ pub(crate) imem_phys_base: u32,
+ /// Size in bytes of the code to copy into `IMEM`.
+ pub(crate) imem_load_size: u32,
+ /// Virtual `IMEM` address (i.e. `tag`) at which the code should start.
+ pub(crate) imem_virt_base: u32,
+ /// Base address at which to load the data segment into `DMEM`.
+ pub(crate) dmem_phys_base: u32,
+ /// Size in bytes of the data to copy into `DMEM`.
+ pub(crate) dmem_load_size: u32,
+ /// Mask of the falcon engines on which this firmware can run.
+ pub(crate) engine_id_mask: u16,
+ /// ID of the ucode used to infer a fuse register to validate the signature.
+ pub(crate) ucode_id: u8,
+ /// Number of signatures in this firmware.
+ pub(crate) signature_count: u8,
+ /// Versions of the signatures, used to infer a valid signature to use.
+ pub(crate) signature_versions: u16,
+ _reserved: u16,
+}
+
+// To be removed once that code is used.
+#[expect(dead_code)]
+impl FalconUCodeDescV3 {
+ pub(crate) fn size(&self) -> usize {
+ ((self.hdr & 0xffff0000) >> 16) as usize
+ }
+}
+
pub(crate) struct ModInfoBuilder<const N: usize>(firmware::ModInfoBuilder<N>);
impl<const N: usize> ModInfoBuilder<N> {
--
2.49.0
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