Re: [PATCH v2 00/13] Driver of Intel(R) Gaussian & Neural Accelerator

[Andy Shevchenko]

On Wed, Mar 24, 2021 at 8:38 PM Maciej Kwapulinski
<maciej.kwapulinski@xxxxxxxxxxxxxxx> wrote:
>
> Dear kernel maintainers,
>
> This submission is a kernel driver to support Intel(R) Gaussian & Neural
> Accelerator (Intel(R) GNA). Intel(R) GNA is a PCI-based neural co-processor
> available on multiple Intel platforms. AI developers and users can offload
> continuous inference workloads to an Intel(R) GNA device in order to free
> processor resources and save power. Noise reduction and speech recognition
> are the examples of the workloads Intel(R) GNA deals with while its usage
> is not limited to the two.
>
> For a list of processors equipped with Intel(R) GNA device, please refer to
> this link:
> https://docs.openvinotoolkit.org/latest/openvino_docs_IE_DG_supported_plugins_GNA.html
>
> We think contributing this driver to the upstream kernel project is the
> best way for developers and users to get the latest Intel(R) GNA support in
> a Linux kernel, through the mainline to any Linux distributions installed
> on their systems. Upstreaming also enables contribution from developers
> around the world to the driver once it is merged.
>
> The driver works with Intel(R) libraries in user space. The Intel(R) driver
> exposes a few IOCTL interfaces for use by libraries in user space. The
> libraries are open sourced and are available at:
> https://github.com/intel/gna
>
> ---
>
> Changelogs:
>
> v1->v2:
>  - driver's new layout:
>    - driver name: gna -> intel_gna
>    - module name: gna -> intel_gna

>    - device file name: /dev/gnaN -> /dev/intel_gnaN

Not sure we need this, but if Greg asked for that (I haven't followed)
than it's okay.

>    - driver's source directory: drivers/misc/gna/ -> drivers/misc/intel/gna/
>    - UAPI: include/uapi/misc/gna.h -> include/uapi/misc/intel/gna.h
>    - DOC: Documentation/misc-devices/gna.rst ->
>        Documentation/misc-devices/intel/gna.rst
>  - 'MISC' device framework used
>  - fixes throughout GNA device's PCI management
>  - header files' includes and forward declarations cleanup
>  - ISR made static
>  - unused comments cleanup
>  - "_priv_" segment removed from function names

>  - tested: v5.11-rc3 -> v5.11

We are at v5.12-rc4. The rule of thumb is latest rc or release +
subsystem tree against which the driver is created.

>  - number of other/minor fixes
>
> ---
>
> Maciej Kwapulinski (1):
>   intel_gna: add a 'misc' device
>
> Tomasz Jankowski (12):
>   intel_gna: add driver module
>   intel_gna: add component of hardware operation
>   intel_gna: read hardware info in the driver
>   intel_gna: add memory handling
>   intel_gna: initialize mmu
>   intel_gna: add hardware ids
>   intel_gna: add request component
>   intel_gna: implement scoring
>   intel_gna: add a work queue to process scoring requests
>   intel_gna: add interrupt handler
>   intel_gna: add ioctl handler
>   intel_gna: add file operations to a 'misc' device
>
>  Documentation/misc-devices/index.rst          |   1 +
>  Documentation/misc-devices/intel/gna.rst      |  48 ++
>  .../userspace-api/ioctl/ioctl-number.rst      |   1 +
>  MAINTAINERS                                   |   7 +
>  drivers/misc/Kconfig                          |   1 +
>  drivers/misc/Makefile                         |   1 +
>  drivers/misc/intel/gna/Kbuild                 |   5 +
>  drivers/misc/intel/gna/Kconfig                |  13 +
>  drivers/misc/intel/gna/gna_device.c           | 429 ++++++++++++++++
>  drivers/misc/intel/gna/gna_device.h           |  89 ++++
>  drivers/misc/intel/gna/gna_driver.c           |  43 ++
>  drivers/misc/intel/gna/gna_driver.h           |  33 ++
>  drivers/misc/intel/gna/gna_hw.c               | 125 +++++
>  drivers/misc/intel/gna/gna_hw.h               |  61 +++
>  drivers/misc/intel/gna/gna_ioctl.c            | 249 +++++++++
>  drivers/misc/intel/gna/gna_ioctl.h            |  11 +
>  drivers/misc/intel/gna/gna_mem.c              | 473 ++++++++++++++++++
>  drivers/misc/intel/gna/gna_mem.h              | 107 ++++
>  drivers/misc/intel/gna/gna_request.c          | 463 +++++++++++++++++
>  drivers/misc/intel/gna/gna_request.h          |  62 +++
>  drivers/misc/intel/gna/gna_score.c            | 298 +++++++++++
>  drivers/misc/intel/gna/gna_score.h            |  18 +
>  include/uapi/misc/intel/gna.h                 | 155 ++++++
>  23 files changed, 2693 insertions(+)
>  create mode 100644 Documentation/misc-devices/intel/gna.rst
>  create mode 100644 drivers/misc/intel/gna/Kbuild
>  create mode 100644 drivers/misc/intel/gna/Kconfig
>  create mode 100644 drivers/misc/intel/gna/gna_device.c
>  create mode 100644 drivers/misc/intel/gna/gna_device.h
>  create mode 100644 drivers/misc/intel/gna/gna_driver.c
>  create mode 100644 drivers/misc/intel/gna/gna_driver.h
>  create mode 100644 drivers/misc/intel/gna/gna_hw.c
>  create mode 100644 drivers/misc/intel/gna/gna_hw.h
>  create mode 100644 drivers/misc/intel/gna/gna_ioctl.c
>  create mode 100644 drivers/misc/intel/gna/gna_ioctl.h
>  create mode 100644 drivers/misc/intel/gna/gna_mem.c
>  create mode 100644 drivers/misc/intel/gna/gna_mem.h
>  create mode 100644 drivers/misc/intel/gna/gna_request.c
>  create mode 100644 drivers/misc/intel/gna/gna_request.h
>  create mode 100644 drivers/misc/intel/gna/gna_score.c
>  create mode 100644 drivers/misc/intel/gna/gna_score.h
>  create mode 100644 include/uapi/misc/intel/gna.h
>
> --
> 2.28.0
>


-- 
With Best Regards,
Andy Shevchenko