[PATCH 0/4] Auxiliary bus Rust abstractions

From: Danilo Krummrich
Date: Tue Mar 11 2025 - 20:28:06 EST


This series adds Rust abstractions for the auxiliary bus.

It implements the required abstractions to write auxiliary drivers and create
auxiliary device registrations. A driver sample illustrates how the
corresponding abstractions work.

The auxiliary abstractions are required for the Nova driver project, in order to
connect nova-core with the nova-drm driver.

This patch series depends on [1] (taken through the nova tree for v6.15); a
branch containing the patches, including the dependency can be found in [2].

[1] https://lore.kernel.org/rust-for-linux/20250306222336.23482-2-dakr@xxxxxxxxxx/
[2] https://web.git.kernel.org/pub/scm/linux/kernel/git/dakr/linux.git/log/?h=rust/auxiliary

Danilo Krummrich (4):
rust: types: add `Opaque::zeroed`
rust: auxiliary: add auxiliary driver abstractions
rust: auxiliary: add auxiliary registration
samples: rust: add Rust auxiliary driver sample

MAINTAINERS | 2 +
rust/bindings/bindings_helper.h | 1 +
rust/helpers/auxiliary.c | 23 ++
rust/helpers/helpers.c | 1 +
rust/kernel/auxiliary.rs | 311 ++++++++++++++++++++++++++
rust/kernel/lib.rs | 2 +
rust/kernel/types.rs | 8 +
samples/rust/Kconfig | 10 +
samples/rust/Makefile | 1 +
samples/rust/rust_driver_auxiliary.rs | 99 ++++++++
10 files changed, 458 insertions(+)
create mode 100644 rust/helpers/auxiliary.c
create mode 100644 rust/kernel/auxiliary.rs
create mode 100644 samples/rust/rust_driver_auxiliary.rs


base-commit: b28786b190d1ae2df5e6a5181ad78c6f226ea3e1
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2.48.1