[PATCH v9 0/6] iio: new DMABUF based API

[Paul Cercueil <paul@xxxxxxxxxxxxxxx>]

Hi Jonathan,

Here's the final-er version of the IIO DMABUF patchset.

This v9 fixes the few issues reported by the kernel bot.

This was based on next-20240308.

Changelog:

- [3/6]:
    - Select DMA_SHARED_BUFFER in Kconfig
    - Remove useless forward declaration of 'iio_dma_fence'
    - Import DMA-BUF namespace
    - Add missing __user tag to iio_buffer_detach_dmabuf() argument

Cheers,
-Paul

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/Kconfig                           |   1 +
 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 +
 11 files changed, 891 insertions(+), 17 deletions(-)
 create mode 100644 Documentation/iio/iio_dmabuf_api.rst

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2.43.0