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Date: Wed, 24 Mar 2021 21:14:16 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Arnd Bergmann <arnd@...db.de>,
Jonathan Corbet <corbet@....net>,
Derek Kiernan <derek.kiernan@...inx.com>,
Dragan Cvetic <dragan.cvetic@...inx.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Documentation List <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v2 00/13] Driver of Intel(R) Gaussian & Neural Accelerator
On Wed, Mar 24, 2021 at 8:38 PM Maciej Kwapulinski
<maciej.kwapulinski@...ux.intel.com> 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
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