Files
linux/rust
Gary Guo 1d409d1e7a rust: io: implement a view type for Coherent
Implement a `CoherentView` type which is a view of `Coherent`. To be able
to give out DMA handles, the view type contains both CPU and DMA pointers,
and the projection method projects both at once.

Delegate most of the `Io` implementation to `SysMemBackend`. Provide a
method to erase the DMA handle and give out a `SysMem` view, if the user
does not need the `dma_handle`.

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20260706-io_projection-v6-15-72cd5d055d54@garyguo.net
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-07-11 18:09:04 +02:00
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