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Message-ID: <20240520172554.182094-1-dakr@redhat.com>
Date: Mon, 20 May 2024 19:25:37 +0200
From: Danilo Krummrich <dakr@...hat.com>
To: gregkh@...uxfoundation.org,
rafael@...nel.org,
bhelgaas@...gle.com,
ojeda@...nel.org,
alex.gaynor@...il.com,
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bjorn3_gh@...tonmail.com,
benno.lossin@...ton.me,
a.hindborg@...sung.com,
aliceryhl@...gle.com,
airlied@...il.com,
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ajanulgu@...hat.com,
lyude@...hat.com
Cc: rust-for-linux@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org,
Danilo Krummrich <dakr@...hat.com>
Subject: [RFC PATCH 00/11] [RFC] Device / Driver and PCI Rust abstractions
This patch sereis implements basic generic device / driver Rust abstractions,
as well as some basic PCI abstractions.
This patch series is sent in the context of [1], and the corresponding patch
series [2], which contains 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].
Some patches, which implement the generic device / driver Rust abstractions have
been sent a couple of weeks ago already [3]. For those patches the following
changes have been made since then:
- remove RawDevice::name()
- remove rust helper for dev_name() and dev_get_drvdata()
- use AlwaysRefCounted for struct Device
- drop trait RawDevice entirely in favor of AsRef and provide
Device::from_raw(), Device::as_raw() and Device::as_ref() instead
- implement RevocableGuard
- device::Data, remove resources and replace it with a Devres abstraction
- implement Devres abstraction for resources
As mentioned above, a driver serving as example on how these abstractions are
used within a (DRM) driver can be found in [2].
Additionally, the device / driver bits can also be found in [3], all
abstractions required for Nova in [4] and Nova in [5].
[1] https://lore.kernel.org/dri-devel/Zfsj0_tb-0-tNrJy@cassiopeiae/T/#u
[2] https://lore.kernel.org/dri-devel/20240520172059.181256-1-dakr@redhat.com/
[3] https://github.com/Rust-for-Linux/linux/tree/staging/rust-device
[4] https://github.com/Rust-for-Linux/linux/tree/staging/dev
[5] https://gitlab.freedesktop.org/drm/nova/-/tree/nova-next
Danilo Krummrich (2):
rust: add abstraction for struct device
rust: add devres abstraction
FUJITA Tomonori (1):
rust: add basic PCI driver abstractions
Philipp Stanner (2):
rust: add basic abstractions for iomem operations
rust: PCI: add BAR request and ioremap
Wedson Almeida Filho (6):
rust: add driver abstraction
rust: add rcu abstraction
rust: add revocable mutex
rust: add revocable objects
rust: add device::Data
rust: add `dev_*` print macros.
rust/bindings/bindings_helper.h | 1 +
rust/helpers.c | 145 ++++++++++
rust/kernel/device.rs | 498 ++++++++++++++++++++++++++++++++
rust/kernel/devres.rs | 151 ++++++++++
rust/kernel/driver.rs | 492 +++++++++++++++++++++++++++++++
rust/kernel/iomem.rs | 135 +++++++++
rust/kernel/lib.rs | 10 +-
rust/kernel/pci.rs | 449 ++++++++++++++++++++++++++++
rust/kernel/prelude.rs | 2 +
rust/kernel/revocable.rs | 441 ++++++++++++++++++++++++++++
rust/kernel/sync.rs | 3 +
rust/kernel/sync/rcu.rs | 52 ++++
rust/kernel/sync/revocable.rs | 148 ++++++++++
rust/macros/module.rs | 2 +-
samples/rust/rust_minimal.rs | 2 +-
samples/rust/rust_print.rs | 2 +-
16 files changed, 2529 insertions(+), 4 deletions(-)
create mode 100644 rust/kernel/device.rs
create mode 100644 rust/kernel/devres.rs
create mode 100644 rust/kernel/driver.rs
create mode 100644 rust/kernel/iomem.rs
create mode 100644 rust/kernel/pci.rs
create mode 100644 rust/kernel/revocable.rs
create mode 100644 rust/kernel/sync/rcu.rs
create mode 100644 rust/kernel/sync/revocable.rs
base-commit: 97ab3e8eec0ce79d9e265e6c9e4c480492180409
--
2.45.1
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