linux-kernel - [PATCH v4 1/6] rust: irq: add irq module

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Message-Id: <20250608-topics-tyr-request_irq-v4-1-81cb81fb8073@collabora.com>
Date: Sun, 08 Jun 2025 19:51:06 -0300
From: Daniel Almeida <daniel.almeida@...labora.com>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
 Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Thomas Gleixner <tglx@...utronix.de>, Benno Lossin <lossin@...nel.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, 
 Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Benno Lossin <lossin@...nel.org>
Cc: linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
 linux-pci@...r.kernel.org, Daniel Almeida <daniel.almeida@...labora.com>
Subject: [PATCH v4 1/6] rust: irq: add irq module

Add the IRQ module. Future patches will then introduce support for IRQ
registrations and handlers.

Signed-off-by: Daniel Almeida <daniel.almeida@...labora.com>
---
 rust/kernel/irq.rs | 11 +++++++++++
 rust/kernel/lib.rs |  1 +
 2 files changed, 12 insertions(+)

diff --git a/rust/kernel/irq.rs b/rust/kernel/irq.rs
new file mode 100644
index 0000000000000000000000000000000000000000..fae7b15effc80c936d6bffbd5b4150000d6c2898
--- /dev/null
+++ b/rust/kernel/irq.rs
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+
+//! IRQ abstractions.
+//!
+//! An IRQ is an interrupt request from a device. It is used to get the CPU's
+//! attention so it can service a hardware event in a timely manner.
+//!
+//! The current abstractions handle IRQ requests and handlers, i.e.: it allows
+//! drivers to register a handler for a given IRQ line.
+//!
+//! C header: [`include/linux/device.h`](srctree/include/linux/interrupt.h)
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
index 6b4774b2b1c37f4da1866e993be6230bc6715841..28dd0ef077fa47211fc0eae899ae4ac82fb6be24 100644
--- a/rust/kernel/lib.rs
+++ b/rust/kernel/lib.rs
@@ -81,6 +81,7 @@
 pub mod init;
 pub mod io;
 pub mod ioctl;
+pub mod irq;
 pub mod jump_label;
 #[cfg(CONFIG_KUNIT)]
 pub mod kunit;

-- 
2.49.0