Re: [PATCH v2 0/8] dma::Coherent & dma::CoherentBox API

Alexandre Courbot
2026-03-21T05:14:11Z

On Sat Mar 21, 2026 at 4:45 AM JST, Danilo Krummrich wrote:
> This patch series introduces the dma::Coherent API Gary worked out in the
> context of his I/O projection work.
>
> Additionally, introduce dma::CoherentBox, a type that encapsulates a
> dma::Coherent object before its DMA address is exposed to the device.
> dma::CoherentBox can guarantee exclusive access to the inner dma::Coherent
> object and implement Deref and DerefMut.
>
> Also add Coherent::init() and Coherent::init_with_attrs() so we can directly
> initialize a new dma::Coherent object through an impl Init<T, E>.

The series,

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>

Based on this I have been able to remove nova-core's `DmaObject` and
consequently its now-useless `dma` module. It's indeed much nicer. I'll
submit the series after some more cleanup and testing.