[v4] rust: Add irq abstraction, SpinLockIrq

[PATCH v4 0/3] rust: Add irq abstraction, SpinLockIrq

Lyude Paul posted 3 patches 2 months, 2 weeks ago

Diff against v3 v5 v6
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rust/helpers.c                    |  23 +++++++
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 ++++++++++++++++++++++++++++++
7 files changed, 236 insertions(+), 3 deletions(-)
create mode 100644 rust/kernel/irq.rs

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[PATCH v4 0/3] rust: Add irq abstraction, SpinLockIrq

Posted by Lyude Paul 2 months, 2 weeks ago

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.c                    |  23 +++++++
 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 ++++++++++++++++++++++++++++++
 7 files changed, 236 insertions(+), 3 deletions(-)
 create mode 100644 rust/kernel/irq.rs


base-commit: 8d8d276ba2fb5f9ac4984f5c10ae60858090babc
-- 
2.46.0