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Introduce the structure that describes it. Signed-off-by: Alexandre Courbot --- 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/firm= ware.rs index cb79d039948858e657c9a23a62ed27ff780ac169..1eb216307cd01d975b3d5beda1d= c516f34b4b3f2 100644 --- a/drivers/gpu/nova-core/firmware.rs +++ b/drivers/gpu/nova-core/firmware.rs @@ -45,6 +45,49 @@ pub(crate) fn new( } } =20 +/// 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 Open= RM. + /// + /// Bits `31:16` contain the size of the header, after which the actua= l 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 sign= ature. + 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(firmware::ModInfoBuilder<= N>); =20 impl ModInfoBuilder { --=20 2.49.0