[v2,0/8] DRM Rust abstractions and Nova

Message

Danilo Krummrich June 18, 2024, 11:31 p.m. UTC

This patch series implements some basic DRM Rust abstractions and a stub
implementation of the Nova GPU driver.

Nova is intended to be developed upstream, starting out with just a stub driver
to lift some initial required infrastructure upstream. A more detailed
explanation can be found in [1].

This patch series is based on the "Device / Driver and PCI Rust abstractions"
series [2].

The DRM bits can also be found in [3] and the Nova bits in [4].

Changes in v2:
==============
- split up the DRM device / driver abstractions in three separate commits
- separate `struct drm_device` abstraction in a separte source file more
  cleanly
- switch `struct drm_driver` and `struct file_operations` to 'static const'
  allocations
- implement `Registration::new_foreign_owned` (using `Devres`), such that we
  don't need to keep the `Registration` alive on the Rust side, but
  automatically revoke it on device unbind
- add missing DRM driver features (Rob)
- use `module_pci_driver!` macro in Nova
- use a const sized `pci::Bar` in Nova
- increase the total amount of Documentation, rephrase some safety comments and
  commit messages for less ambiguity
- fix compilation issues with some documentation example

[1] https://lore.kernel.org/dri-devel/Zfsj0_tb-0-tNrJy@cassiopeiae/T/#u
[2] Reply to this mail titled "Device / Driver and PCI Rust abstractions".
[3] https://gitlab.freedesktop.org/drm/misc/kernel/-/tree/topic/rust-drm
[4] https://gitlab.freedesktop.org/drm/nova/-/tree/nova-next

Asahi Lina (4):
  rust: drm: ioctl: Add DRM ioctl abstraction
  rust: Add a Sealed trait
  rust: drm: file: Add File abstraction
  rust: drm: gem: Add GEM object abstraction

Danilo Krummrich (4):
  rust: drm: add driver abstractions
  rust: drm: add device abstraction
  rust: drm: add DRM driver registration
  nova: add initial driver stub

 MAINTAINERS                     |  10 +
 drivers/gpu/drm/Kconfig         |   2 +
 drivers/gpu/drm/Makefile        |   1 +
 drivers/gpu/drm/nova/Kconfig    |  12 +
 drivers/gpu/drm/nova/Makefile   |   3 +
 drivers/gpu/drm/nova/driver.rs  |  85 +++++++
 drivers/gpu/drm/nova/file.rs    |  70 ++++++
 drivers/gpu/drm/nova/gem.rs     |  50 ++++
 drivers/gpu/drm/nova/gpu.rs     | 173 ++++++++++++++
 drivers/gpu/drm/nova/nova.rs    |  18 ++
 include/uapi/drm/nova_drm.h     | 101 ++++++++
 rust/bindings/bindings_helper.h |   5 +
 rust/helpers.c                  |  23 ++
 rust/kernel/drm/device.rs       | 182 ++++++++++++++
 rust/kernel/drm/drv.rs          | 199 ++++++++++++++++
 rust/kernel/drm/file.rs         | 116 +++++++++
 rust/kernel/drm/gem/mod.rs      | 409 ++++++++++++++++++++++++++++++++
 rust/kernel/drm/ioctl.rs        | 153 ++++++++++++
 rust/kernel/drm/mod.rs          |   9 +
 rust/kernel/lib.rs              |   7 +
 rust/uapi/uapi_helper.h         |   2 +
 21 files changed, 1630 insertions(+)
 create mode 100644 drivers/gpu/drm/nova/Kconfig
 create mode 100644 drivers/gpu/drm/nova/Makefile
 create mode 100644 drivers/gpu/drm/nova/driver.rs
 create mode 100644 drivers/gpu/drm/nova/file.rs
 create mode 100644 drivers/gpu/drm/nova/gem.rs
 create mode 100644 drivers/gpu/drm/nova/gpu.rs
 create mode 100644 drivers/gpu/drm/nova/nova.rs
 create mode 100644 include/uapi/drm/nova_drm.h
 create mode 100644 rust/kernel/drm/device.rs
 create mode 100644 rust/kernel/drm/drv.rs
 create mode 100644 rust/kernel/drm/file.rs
 create mode 100644 rust/kernel/drm/gem/mod.rs
 create mode 100644 rust/kernel/drm/ioctl.rs
 create mode 100644 rust/kernel/drm/mod.rs


base-commit: 6646240d29b11de3177f71ff777d0ae683c32623

Comments

Danilo Krummrich June 18, 2024, 11:42 p.m. UTC | #1

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