Re: [PATCH v8 0/6] iio: new DMABUF based API

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On Fri,  8 Mar 2024 18:00:40 +0100
Paul Cercueil <paul@xxxxxxxxxxxxxxx> wrote:

> Hi Jonathan,
> 
> Here's the final(tm) version of the IIO DMABUF patchset.
> 
> This v8 fixes the remaining few issues that Christian reported.
> 
> I also updated the documentation patch as there has been changes to
> index.rst.
> 
> This was based on next-20240308.
> 
> Changelog:
> 
> - [3/6]:
>     - Fix swapped fence direction
>     - Simplify fence wait mechanism
>     - Remove "Buffer closed with active transfers" print, as it was dead
>       code
>     - Un-export iio_buffer_dmabuf_{get,put}. They are not used anywhere
>       else so they can even be static.
>     - Prevent attaching already-attached DMABUFs
> - [6/6]:
>     Renamed dmabuf_api.rst -> iio_dmabuf_api.rst, and updated index.rst
>     whose format changed in iio/togreg.
> 
> Cheers,
> -Paul
Given nature of the build bug issues reported, I'm guessing you never
built this as a module :(  Not sure how one instance of a missing 
user marking got through but also easy to fix.

Anyhow, no need to wait before sending a v9 with those sorted.

0-day does it's job again - even better is that it's whilst it's
still your problem and not mine :)

Jonathan

> 
> Paul Cercueil (6):
>   dmaengine: Add API function dmaengine_prep_peripheral_dma_vec()
>   dmaengine: dma-axi-dmac: Implement device_prep_peripheral_dma_vec
>   iio: core: Add new DMABUF interface infrastructure
>   iio: buffer-dma: Enable support for DMABUFs
>   iio: buffer-dmaengine: Support new DMABUF based userspace API
>   Documentation: iio: Document high-speed DMABUF based API
> 
>  Documentation/iio/iio_dmabuf_api.rst          |  54 ++
>  Documentation/iio/index.rst                   |   1 +
>  drivers/dma/dma-axi-dmac.c                    |  40 ++
>  drivers/iio/buffer/industrialio-buffer-dma.c  | 181 ++++++-
>  .../buffer/industrialio-buffer-dmaengine.c    |  59 ++-
>  drivers/iio/industrialio-buffer.c             | 462 ++++++++++++++++++
>  include/linux/dmaengine.h                     |  27 +
>  include/linux/iio/buffer-dma.h                |  31 ++
>  include/linux/iio/buffer_impl.h               |  30 ++
>  include/uapi/linux/iio/buffer.h               |  22 +
>  10 files changed, 890 insertions(+), 17 deletions(-)
>  create mode 100644 Documentation/iio/iio_dmabuf_api.rst
> 





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