| From: |
| Abdiel Janulgue <abdiel.janulgue-AT-gmail.com> |
| To: |
| rust-for-linux-AT-vger.kernel.org |
| Subject: |
| [PATCH v5 0/2] Add dma coherent allocator abstraction |
| Date: |
| Tue, 03 Dec 2024 19:07:42 +0200 |
| Message-ID: |
| <20241203170752.1834271-1-abdiel.janulgue@gmail.com> |
| Cc: |
| Miguel Ojeda <ojeda-AT-kernel.org>, Alex Gaynor <alex.gaynor-AT-gmail.com>, Boqun Feng <boqun.feng-AT-gmail.com>, Gary Guo <gary-AT-garyguo.net>, Björn Roy Baron <bjorn3_gh-AT-protonmail.com>, Benno Lossin <benno.lossin-AT-proton.me>, Andreas Hindborg <a.hindborg-AT-kernel.org>, Alice Ryhl <aliceryhl-AT-google.com>, Trevor Gross <tmgross-AT-umich.edu>, Danilo Krummrich <dakr-AT-kernel.org>, Wedson Almeida Filho <wedsonaf-AT-google.com>, Valentin Obst <kernel-AT-valentinobst.de>, linux-kernel-AT-vger.kernel.org (open list), Christoph Hellwig <hch-AT-lst.de>, Marek Szyprowski <m.szyprowski-AT-samsung.com>, Robin Murphy <robin.murphy-AT-arm.com>, airlied-AT-redhat.com, iommu-AT-lists.linux.dev (open list:DMA MAPPING HELPERS), Abdiel Janulgue <abdiel.janulgue-AT-gmail.com> |
| Archive-link: |
| Article |
This series adds support for a basic Rust abstraction for the dma coherent
allocator API.
Changes since v4:
- Documentation and example fixes, use Markdown formatting (Miguel Ojeda).
- Discard read()/write() helpers to remove bound on Copy and fix overhead
(Daniel Almeida).
- Improve error-handling in the constructor block (Andreas Hindborg).
- Link to v3: https://lore.kernel.org/all/20241105104726.3111058-1-abdi...
Changes since v3:
- Reject ZST types by checking the type size in the constructor in
addition to requiring FromBytes/AsBytes traits for the type (Alice Ryhl).
Changes since v2:
- Fixed missing header for generating the bindings.
Changes since v1:
- Fix missing info in commit log where EOVERFLOW is used.
- Restrict the dma coherent allocator to numeric types for now for valid
behaviour (Daniel Almeida).
- Build slice dynamically.
Abdiel Janulgue (2):
rust: error: Add EOVERFLOW
rust: add dma coherent allocator abstraction.
rust/bindings/bindings_helper.h | 1 +
rust/kernel/dma.rs | 136 ++++++++++++++++++++++++++++++++
rust/kernel/error.rs | 1 +
rust/kernel/lib.rs | 1 +
4 files changed, 139 insertions(+)
create mode 100644 rust/kernel/dma.rs
base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37
--
2.43.0
