linux-kernel - [PATCH v6 0/3] rust: Add irq abstraction, SpinLockIrq

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Message-ID: <20240916213025.477225-1-lyude@redhat.com>
Date: Mon, 16 Sep 2024 17:28:03 -0400
From: Lyude Paul <lyude@...hat.com>
To: rust-for-linux@...r.kernel.org
Cc: Danilo Krummrich <dakr@...hat.com>,
	airlied@...hat.com,
	Ingo Molnar <mingo@...hat.com>,
	Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...sung.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>
Subject: [PATCH v6 0/3] rust: Add irq abstraction, SpinLockIrq

This adds a simple interface for disabling and enabling CPUs, along with
the ability to mark a function as expecting interrupts be disabled -
along with adding bindings for spin_lock_irqsave/spin_lock_irqrestore().

Current example usecase (very much WIP driver) in rvkms:

https://gitlab.freedesktop.org/lyudess/linux/-/commits/rvkms-example-08012024

specifically drivers/gpu/drm/rvkms/crtc.rs

This series depends on
https://lore.kernel.org/rust-for-linux/ZuKNszXSw-LbgW1e@boqun-archlinux/

Lyude Paul (3):
  rust: Introduce irq module
  rust: sync: Introduce lock::Backend::Context
  rust: sync: Add SpinLockIrq

 rust/helpers/helpers.c            |   1 +
 rust/helpers/irq.c                |  22 +++++++
 rust/kernel/irq.rs                |  96 +++++++++++++++++++++++++++
 rust/kernel/lib.rs                |   1 +
 rust/kernel/sync.rs               |   2 +-
 rust/kernel/sync/lock.rs          |  17 ++++-
 rust/kernel/sync/lock/mutex.rs    |   1 +
 rust/kernel/sync/lock/spinlock.rs | 105 ++++++++++++++++++++++++++++++
 8 files changed, 242 insertions(+), 3 deletions(-)
 create mode 100644 rust/helpers/irq.c
 create mode 100644 rust/kernel/irq.rs


base-commit: a2f11547052001bd448ccec81dd1e68409078fbb
prerequisite-patch-id: 926565461e47df321ce1bed92894cc1f265896ef
-- 
2.46.0