[PATCH v5 0/3] rust: Add irq abstraction, SpinLockIrq

From: Lyude Paul
Date: Thu Sep 12 2024 - 15:07:27 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

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 | 90 +++++++++++++++++++++++++
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, 236 insertions(+), 3 deletions(-)
create mode 100644 rust/helpers/irq.c
create mode 100644 rust/kernel/irq.rs


base-commit: 93dc3be19450447a3a7090bd1dfb9f3daac3e8d2
--
2.46.0