[PATCH v3 0/3] rust: Add irq abstraction, SpinLockIrq

From: Lyude Paul
Date: Thu Aug 01 2024 - 20:15:28 EST


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

(The kunit tests also compile)

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

rust/helpers.c | 22 +++++++
rust/kernel/irq.rs | 84 ++++++++++++++++++++++++
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 ++++++++++++++++++++++++++++++
7 files changed, 229 insertions(+), 3 deletions(-)
create mode 100644 rust/kernel/irq.rs


base-commit: 8400291e289ee6b2bf9779ff1c83a291501f017b
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2.45.2