Re: [PATCH 2/2] rust: add dma coherent allocator abstraction.

[Abdiel Janulgue]

On 23/10/2024 14:32, Abdiel Janulgue wrote:
> Add a simple dma coherent allocator rust abstraction which was based on
> Andreas Hindborg's dma abstractions from the rnvme driver.
>
> This version:
> - Does not introduce the unused dma pool functionality for now.
> - Represents the internal CPU buffer as a slice instead of using raw
>    pointer reads and writes.
> - Ensures both 32 and 64-bit DMA addressing works.
> - Make use of Result error-handling instead of Some.


Ping! Does this approach make sense? :)

> Co-developed-by: Wedson Almeida Filho <wedsonaf@xxxxxxxxx>
> Signed-off-by: Wedson Almeida Filho <wedsonaf@xxxxxxxxx>
> Co-developed-by: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
> Signed-off-by: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxx>
> ---
>   rust/kernel/dma.rs | 153 +++++++++++++++++++++++++++++++++++++++++++++
>   rust/kernel/lib.rs |   1 +
>   2 files changed, 154 insertions(+)
>   create mode 100644 rust/kernel/dma.rs