diff options
| -rw-r--r-- | drivers/gpu/nova-core/firmware.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs index 4b8a38358a4f..2f4f5c7c7902 100644 --- a/drivers/gpu/nova-core/firmware.rs +++ b/drivers/gpu/nova-core/firmware.rs @@ -41,6 +41,51 @@ impl Firmware { } } +/// 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. + 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 { + /// Returns the size in bytes of the header. + pub(crate) fn size(&self) -> usize { + const HDR_SIZE_SHIFT: u32 = 16; + const HDR_SIZE_MASK: u32 = 0xffff0000; + + ((self.hdr & HDR_SIZE_MASK) >> HDR_SIZE_SHIFT) as usize + } +} + pub(crate) struct ModInfoBuilder<const N: usize>(firmware::ModInfoBuilder<N>); impl<const N: usize> ModInfoBuilder<N> { |