Add the MCTP (Management Component Transport Protocol) and NVDM (NVIDIA
Data Model) wire-format types used for communication between the kernel
driver and GPU firmware processors.

This includes typed MCTP transport headers, NVDM message headers, and
NVDM message type identifiers. Both the FSP boot path and the upcoming
GSP RPC message queue share this protocol layer.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260603-b4-blackwell-v13-3-d9f3a06939e0@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

Hopper and Blackwell use FSP instead of SEC2 for secure boot. The
driver must wait for FSP secure boot to complete before continuing
with GSP bring-up. Poll for boot success with a 5-second timeout, and
return the FSP interface only on success so that later Chain of Trust
operations cannot run before FSP is ready. The interface owns the FSP
falcon and the FMC firmware.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260602032111.224790-13-jhubbard@nvidia.com
[acourbot: use `inspect_err` instead of `map_err` and display actual error]
[acourbot: limit visibility of `fsp_hal` to `super``]
Co-developed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

Higher-Ranked Lifetime Types for Rust device drivers

Replace drvdata() with registration data on the auxiliary bus. Private
data is now scoped to the registration object, removing the ordering
constraints and lifetime complications that came with drvdata().

Add Higher-Ranked Lifetime Types (HRT) so driver structs can borrow
device resources like pci::Bar and IoMem directly, tied to the device
binding scope. This removes the need for Devres indirection and
ARef<Device> in most driver code.

This is a stable tag for other trees to merge.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Introduce NovaCoreDriver as the driver type implementing pci::Driver,
keeping NovaCore as the per-device data type. This prepares for making
NovaCore lifetime-parameterized once auxiliary::Registration requires a
lifetime for the binding scope.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260525202921.124698-22-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Update nova/Makefile and nova-core/Makefile so that nova-drm.ko and
nova-core.ko are produced, matching the module names set in patch 1.

Update drm::DriverInfo with the correct driver name and vendor
description. Fix Kconfig help text for both drivers and the debugfs
directory name in nova-core to match the new module names.

Closes: https://github.com/Rust-for-Linux/linux/issues/1228
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Link: https://patch.msgid.link/20260507185012.1527139-3-yphbchou0911@gmail.com
[ Change commit subject to "gpu: nova: Use module names consistently";
  slightly adjust commit message. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Driver names must follow kernel kebab-case convention before they are
exposed as UAPI via driver_override.

Rename the nova-drm module from "Nova" to "nova-drm" and the nova-core
module from "NovaCore" to "nova-core".

Update NOVA_CORE_MODULE_NAME to match the renamed nova-core module.

Suggested-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Timur Tabi <ttabi@nvidia.com>
Closes: https://github.com/Rust-for-Linux/linux/issues/1228
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Link: https://patch.msgid.link/20260507185012.1527139-2-yphbchou0911@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Introduce a GpuHal trait and per-family dispatch so GPU boot
behavior can vary by architecture. Move wait_gfw_boot_completion()
from the standalone gfw module into gpu/hal/tu102.rs as the first
GpuHal implementation. All architectures currently dispatch to this
implementation, preserving existing behavior.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260411024953.473149-7-jhubbard@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

Replace the nova-core local `DmaObject` with a `CoherentBox` that can
fulfill the same role.

Since `CoherentBox` is more flexible than `DmaObject`, we can use the
native `u64` type for page table entries instead of messing with bytes.

The `dma` module becomes unused with that change, so remove it as well.

Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260327-b4-nova-dma-removal-v2-7-616e1d0b5cb3@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

Introduce a powered-up version of our ad-hoc `impl_from_enum_to_u8`
macro that allows the definition of an enum type associated to a
`Bounded` of a given width, and provides the `From` and `TryFrom`
implementations required to use that enum as a register field member.

This allows us to generate the required conversion implementations for
using the kernel register macro and skip some tedious boilerplate.

Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-1-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

Create the 'nova_core' root debugfs entry when the driver loads.

Normally, non-const global variables need to be protected by a
mutex.  Instead, we use unsafe code, as we know the entry is never
modified after the driver is loaded.  This solves the lifetime
issue of the mutex guard, which would otherwise have required the
use of `pin_init_scope`.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260319212658.2541610-6-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>