linux.git/drivers/gpu/nova-core/firmware, branch master

rust: dma: rename dma_handle to dma_address

2026-08-06T20:54:39+00:00

The `dma_handle` naming is inherited from the C API, but what this
really describes is the device DMA address; everything named
`dma_handle` is actually a `dma_addr_t`.

This naming introduces some confusion on the Rust API side, as handles
are supposed to be opaque tokens, yet we were doing address computation
on values returned by `dma_handle`.

Rename `dma_handle` to `dma_address` while nova-core is still its only
user.

Suggested-by: John Hubbard 
Suggested-by: Danilo Krummrich 
Link: https://lore.kernel.org/all/DK75LUA4NLGI.3P29AIZQE20V2@kernel.org/
Signed-off-by: Alexandre Courbot 
Reviewed-by: Robin Murphy 
Link: https://patch.msgid.link/20260805-falcon-dma-projections-v2-2-4cc9f3f13ee9@nvidia.com
[ Rebase and fix up build failures due to newly introduced dma_handle()
  calls. - Danilo ]
Signed-off-by: Danilo Krummrich

gpu: nova-core: transition fsp to TLV images

2026-08-05T23:54:12+00:00

Switch the FSP firmware loaders from the legacy ELF32 format to the new
TLV format.  This change requires the new TLV versions of the r570.144
firmware images.

Because we are no longer loading ELF images, we can also delete the ELF
parser.

Also remove function request_firmware() as this was the last user.

Signed-off-by: Timur Tabi 
Reviewed-by: Alexandre Courbot 
Tested-by: Alexandre Courbot 
Link: https://patch.msgid.link/20260731201017.2580713-8-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich

gpu: nova-core: transition gen_bootloader to TLV images

2026-08-05T23:54:12+00:00

Switch the generic bootloader firmware loader from the legacy binary
format to the TLV format.  This change requires the new TLV versions
of the r570.144 firmware images.

Signed-off-by: Timur Tabi 
Reviewed-by: Alexandre Courbot 
Tested-by: Alexandre Courbot 
Link: https://patch.msgid.link/20260731201017.2580713-7-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich

gpu: nova-core: transition gsp to TLV images

2026-08-05T23:54:12+00:00

Switch the GSP firmware loader from the legacy binary format to the
TLV format.  This change requires the new TLV versions of the r570.144
firmware images.

Unlike the other TLV firmware images, gsp.tlv contains a pointer to
the actual GSP firmware file instead of its contents.  This allows
each small gsp.tlv file to contain the distinct metadata for each GPU
while still allowing the very large gsp.bin to be shared by all
GPUs.

One key piece of metadata is the signature.  The legacy GSP firmware
image is an ELF file that contains multiple sections that needed
to be parsed, and the driver needed to determine which section is
relevant for the GPU.  Instead, gsp.tlv contains the pre-processed
metadata, so all the driver needs to do is to extract it.

Signed-off-by: Timur Tabi 
Reviewed-by: Alexandre Courbot 
Tested-by: Alexandre Courbot 
Link: https://patch.msgid.link/20260731201017.2580713-6-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich

gpu: nova-core: transition booter to TLV images

2026-08-05T23:54:12+00:00

Switch the booter firmware loader from the legacy binary format to the
TLV format.  This change requires the new TLV versions of the r570.144
firmware images.

The new TLV format has all of the metadata needed by Nova encoded as
separate tags, eliminating the need to parse legacy firmware headers
such as HsHeaderV2 and HsSignatureParams.  All of the structs and
code for parsing those headers is therefore deleted.

Signed-off-by: Timur Tabi 
Reviewed-by: Alexandre Courbot 
Tested-by: Alexandre Courbot 
Link: https://patch.msgid.link/20260731201017.2580713-5-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich

gpu: nova-core: add TLV parser for firmware files

2026-08-05T23:54:12+00:00

TLV (type, length, value) files are the new image format used by Nova
to encapsulate firmware images and their metadata.  Unlike the firmware
files for previous versions of the firmware, TLV filenames are not
versioned, and they have a .tlv suffix.

Add function request_tlv() to load TLV firmware images.

Add the Tlv struct and supporting types for parsing TLV firmware images.
TLV files begin with a 4-byte magic header, which must be "NVFW" for
Nvidia firmware files.  This is followed by a sequence of blocks each
containing a 4-byte ASCII tag, a 4-byte little-endian length, and a
payload padded to a 4-byte boundary.

Tlv::new() validates the entire image up front, so that the iterator can
subsequently yield blocks without fallible parsing.

Also add accessor methods for the various encoded types that will be used
by the driver.

Signed-off-by: Timur Tabi 
Reviewed-by: Alexandre Courbot 
Tested-by: Alexandre Courbot 
Link: https://patch.msgid.link/20260731201017.2580713-4-ttabi@nvidia.com
[ Drop unnecessary payload.is_empty() check in Tlv::new(), use EINVAL
  instead of ENODATA in Tlv::get_bytes() and add a corresponding TODO
  comment. - Danilo ]
Signed-off-by: Danilo Krummrich

gpu: nova-core: move GSP firmware files decision to GSP HAL

2026-07-15T23:00:52+00:00

The files to give the `ModInfoBuilder` depend on the chipset; this is
HAL information, so move it there. Doing so lets us remove the
`uses_fsp` and `needs_fwsec_bootloader` ad-hoc methods of `Chipset`.

Signed-off-by: Eliot Courtney 
Link: https://patch.msgid.link/20260709-nova-bootcontext-v6-9-520cbf8b9b50@nvidia.com
Signed-off-by: Alexandre Courbot

gpu: nova-core: falcon: store bar and dev in falcon

2026-06-29T12:36:52+00:00

Store the bound device and `BAR0` mapping in `Falcon` instead of passing
them through every `Falcon` operation. This simplifies the `Falcon` API and
removes repeated `dev`/`bar` plumbing from reset, load, boot, mailbox, DMA,
and GSP/FSP-specific Falcon helpers.

`FalconHal` now receives a reference to a `Falcon` and uses its methods and
members instead of passing them individually.

Suggested-by: Alexandre Courbot 
Link: https://rust-for-linux.zulipchat.com/#narrow/channel/509436-Nova/topic/Storing.20driver-bound.20references.20into.20sub-devices/near/599137882
Signed-off-by: Tim Kovalenko 
Acked-by: Danilo Krummrich 
Link: https://patch.msgid.link/20260625-drm-bar-refactor-v2-1-9db6b890d92e@proton.me
Signed-off-by: Alexandre Courbot

gpu: nova-core: remove imports available from prelude

2026-06-10T19:05:48+00:00

No functional changes intended.

Signed-off-by: Gary Guo 
Link: https://patch.msgid.link/20260610135716.1013688-1-gary@kernel.org
Signed-off-by: Danilo Krummrich

gpu: nova-core: move lifetime to `Bar0`

2026-06-03T20:10:51+00:00

Currently Nova code uses `&'a Bar0` a lot. This is `&'a Mmio`, where `Mmio`
represents an owned MMIO region; this type only exists as a target for
`Deref` so `Bar` and `IoMem` can share code and should be avoided to be
named directly. The upcoming I/O projection series would make `Io` trait
much simpler to implement, and thus the owned MMIO type would be removed
in favour of direct `Io` implementation on `Bar` and `IoMem`.

Add lifetime parameter to `Bar0<'a>` and change it to be alias of `&'a
pci::Bar<'a, ..>`. This also prepares Nova core so that when I/O projection
series land, this could be changed to using a MMIO view type directly which
avoids double indirection.

Signed-off-by: Gary Guo 
Acked-by: Alexandre Courbot 
Reviewed-by: Eliot Courtney 
Link: https://patch.msgid.link/20260602170416.2268531-1-gary@kernel.org
[ Rebase onto latest drm-rust-next (Blackwell enablement). - Danilo ]
Signed-off-by: Danilo Krummrich