DRM Rust changes for v7.0-rc1

Hi Dave and Sima,

Please pull these DRM Rust changes.

Most changes have been in -next for a couple of rounds; there's one minor conflict with the drm-misc tree [1] due to a Panthor/Tyr UAPI change.

In general, there are not a lot of changes this cycle, the biggest thing is the preparation work for Turing support, but even this is rather small.

Expect quite a bit more for the next cycle, e.g. GPUVM, DRM buddy, DeviceContext for DRM devices and Hopper/Blackwell support plus some MM stuff on the nova-core side.

- Danilo

[1] https://lore.kernel.org/all/[email protected]/

The following changes since commit 0f61b1860cc3f52aef9036d7235ed1f017632193:

Linux 6.19-rc5 (2026-01-11 17:03:14 -1000)

are available in the Git repository at:

https://gitlab.freedesktop.org/drm/rust/kernel.git tags/drm-rust-next-2026-01-26

for you to fetch changes up to cea7b66a80412e2a5b74627b89ae25f1d0110a4b:

Documentation: nova: update pending tasks (2026-01-26 18:16:14 +0100)

----------------------------------------------------------------
DRM Rust changes for v7.0-rc1

DRM:
- Fix documentation for Registration constructors.
- Use pin_init::zeroed() for fops initialization.
- Annotate DRM helpers with __rust_helper.
- Improve safety documentation for gem::Object::new().
- Update AlwaysRefCounted imports.

MM:
- Prevent integer overflow in page_align().

Nova (Core):
- Prepare for Turing support. This includes parsing and handling Turing-specific firmware headers and sections as well as a Turing Falcon HAL implementation.
- Get rid of the Result<impl PinInit<T, E>> anti-pattern.
- Relocate initializer-specific code into the appropriate initializer.
- Use CStr::from_bytes_until_nul() to remove custom helpers.
- Improve handling of unexpected firmware values.
- Clean up redundant debug prints.
- Replace c_str!() with native Rust C-string literals.
- Update nova-core task list.

Nova (DRM):
- Align GEM object size to system page size.

Tyr:
- Use generated uAPI bindings for GpuInfo.
- Replace manual sleeps with read_poll_timeout().
- Replace c_str!() with native Rust C-string literals.
- Suppress warnings for unread fields.
- Fix incorrect register name in print statement.

----------------------------------------------------------------
Alexandre Courbot (1):
gpu: nova-core: align LibosMemoryRegionInitArgument size to page size

Alice Ryhl (1):
rust: drm: add __rust_helper to helpers

Atharv Dubey (1):
rust: drm: use pin_init::zeroed() for file operations initialization

Brendan Shephard (2):
rust: Return Option from page_align and ensure no usize overflow drm/nova: Align GEM memory allocation to system page size

Danilo Krummrich (7):
gpu: nova-core: fw: get rid of redundant Result in GspFirmware::new()
gpu: nova-core: fw: move appropriate code into pin initializer
gpu: nova-core: gsp: get rid of redundant Result in Gsp::new()
gpu: nova-core: gsp: move appropriate code into pin initializer Merge tag 'v6.19-rc5' into drm-rust-next
Documentation: nova: remove completed tasks
Documentation: nova: update pending tasks

Deborah Brouwer (3):
drm/tyr: use generated bindings for GpuInfo
drm/tyr: use read_poll_timeout
drm/tyr: suppress unread field warnings

Dirk Behme (1):
drm/tyr: fix register name in error print

Ewan Chorynski (1):
rust: drm: Improve safety comment when using Pin::into_inner_unchecked

John Hubbard (4):
gpu: nova-core: use CStr::from_bytes_until_nul() and remove util.rs
gpu: nova-core: use CStr::from_bytes_until_nul() in elf64_section()
gpu: nova-core: preserve error information in gpu_name()
gpu: nova-core: don't print raw PMU table entries

Lyude Paul (1):
rust/drm: Fix Registration::{new,new_foreign_owned}() docs

Shankari Anand (2):
drivers: gpu: Update ARef imports from sync::aref
rust: drm: Update AlwaysRefCounted imports to use sync::aref

Tamir Duberstein (2):
gpu: nova: replace kernel::c_str! with C-Strings
drm: tyr: replace kernel::c_str! with C-Strings

Timur Tabi (12):
gpu: nova-core: check for overflow to DMATRFBASE1
gpu: nova-core: add missing newlines to several print strings
gpu: nova-core: rename Imem to ImemSecure
gpu: nova-core: add ImemNonSecure section infrastructure
gpu: nova-core: support header parsing on Turing/GA100
gpu: nova-core: add support for Turing/GA100 fwsignature
gpu: nova-core: add NV_PFALCON_FALCON_DMATRFCMD::with_falcon_mem()
gpu: nova-core: move some functions into the HAL
gpu: nova-core: Add basic Turing HAL
gpu: nova-core: add NV_PFALCON_FALCON_ENGINE::reset_engine()
gpu: nova-core: add Falcon HAL method load_method()
gpu: nova-core: add FalconUCodeDescV2 support

 Documentation/gpu/nova/core/todo.rst      |  59 +++++++++-----------------------
 drivers/gpu/drm/nova/driver.rs            |  18 +++++++---
 drivers/gpu/drm/nova/gem.rs               |   6 ++--
 drivers/gpu/drm/tyr/driver.rs             |  55 +++++++++++++-----------------
 drivers/gpu/drm/tyr/gpu.rs                |  66 ++++++++++++++++++------------------
 drivers/gpu/nova-core/driver.rs           |   5 ++-
 drivers/gpu/nova-core/falcon.rs           | 107 +++++++++++++++++++++++++++-------------------------------
 drivers/gpu/nova-core/falcon/hal.rs       |  26 ++++++++++++++
 drivers/gpu/nova-core/falcon/hal/ga102.rs |  43 ++++++++++++++++++++++--
 drivers/gpu/nova-core/falcon/hal/tu102.rs |  77 ++++++++++++++++++++++++++++++++++++++++++
 drivers/gpu/nova-core/fb.rs               |   2 +-
 drivers/gpu/nova-core/firmware.rs         | 203 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 drivers/gpu/nova-core/firmware/booter.rs  |  43 ++++++++++++++++++++----
 drivers/gpu/nova-core/firmware/fwsec.rs   |  51 +++++++++++++---------------
 drivers/gpu/nova-core/firmware/gsp.rs     | 146 +++++++++++++++++++++++++++++++++++++++++--------------------------------------
 drivers/gpu/nova-core/gpu.rs              |   4 +--
 drivers/gpu/nova-core/gsp.rs              |  77 ++++++++++++++++++++----------------------
 drivers/gpu/nova-core/gsp/boot.rs         |  18 ++++------
 drivers/gpu/nova-core/gsp/cmdq.rs         |   2 +-
 drivers/gpu/nova-core/gsp/commands.rs     |  29 ++++++++++++----
 drivers/gpu/nova-core/gsp/fw.rs           |  14 +++++++-
 drivers/gpu/nova-core/gsp/sequencer.rs    |  14 ++++----
 drivers/gpu/nova-core/nova_core.rs        |   1 -
 drivers/gpu/nova-core/regs.rs             |  42 ++++++++++++++++++++++-
 drivers/gpu/nova-core/util.rs             |  16 ---------
 drivers/gpu/nova-core/vbios.rs            |  73 ++++++++++++++++++----------------------
 rust/helpers/drm.c                        |   7 ++--
 rust/kernel/drm/driver.rs                 |   6 ++--
 rust/kernel/drm/gem/mod.rs                |   8 ++---
 rust/kernel/page.rs                       |  36 ++++++++++++++++----
 30 files changed, 823 insertions(+), 431 deletions(-)
 create mode 100644 drivers/gpu/nova-core/falcon/hal/tu102.rs
 delete mode 100644 drivers/gpu/nova-core/util.rs