[PATCH v4 00/10] Driver of Intel(R) Gaussian & Neural Accelerator
Kwapulinski, Maciej
maciej.kwapulinski at intel.com
Thu Oct 20 13:35:15 UTC 2022
From: Maciej Kwapulinski <maciej.kwapulinski at linux.intel.com>
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
- 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
- number of other/minor fixes
v2->v3:
- PCI glue driver part split.
- GNA probe fail path made fully implicit.
- 'recovery_timeout' module parameter present under 'CONFIG_DEBUG_INTEL_GNA' flag only.
- build for X86_32 enabled.
- module initialization through 'module_pci_driver()'.
- gna_priv->file_list cleanup.
- 'gna_' prefix removed from source files' names.
- power management handling added.
- number of other/minor fixes
- tests performed on kernel v5.12
v3->v4:
- GNA driver adapted to DRM framework (+userspace GNA library adapted to use the driver)
- drm_managed (drmm) feature is used for objects lifetime management
- GNA memory objects use ~drm_gem_shmem_object~ objects as a base
- patches reorganized to meet symbols' usage with their declarations/definitions
- 'recovery_timeout' module parameter removed
- number of other/minor fixes from v3 review
- tests performed on kernel v6.0
Maciej Kwapulinski (4):
gna: add PCI driver module
gna: add GNA DRM device
gna: add GNA_GEM_NEW and GNA_GEM_FREE ioctls
gna: add power management
Tomasz Jankowski (6):
gna: read hardware info
gna: initialize MMU
gna: add GNA_GET_PARAMETER ioctl
gna: add GNA_COMPUTE ioctl
gna: add GNA_WAIT ioctl
gna: add open and close operations on GNA device
Documentation/gpu/drivers.rst | 1 +
Documentation/gpu/gna.rst | 64 +++++
MAINTAINERS | 7 +
drivers/gpu/drm/Kconfig | 2 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/gna/Kbuild | 5 +
drivers/gpu/drm/gna/Kconfig | 15 +
drivers/gpu/drm/gna/gna_device.c | 317 +++++++++++++++++++++
drivers/gpu/drm/gna/gna_device.h | 114 ++++++++
drivers/gpu/drm/gna/gna_gem.h | 22 ++
drivers/gpu/drm/gna/gna_hw.c | 110 ++++++++
drivers/gpu/drm/gna/gna_hw.h | 107 ++++++++
drivers/gpu/drm/gna/gna_ioctl.c | 208 ++++++++++++++
drivers/gpu/drm/gna/gna_mem.c | 249 +++++++++++++++++
drivers/gpu/drm/gna/gna_mem.h | 58 ++++
drivers/gpu/drm/gna/gna_pci.c | 148 ++++++++++
drivers/gpu/drm/gna/gna_pci.h | 12 +
drivers/gpu/drm/gna/gna_request.c | 441 ++++++++++++++++++++++++++++++
drivers/gpu/drm/gna/gna_request.h | 64 +++++
drivers/gpu/drm/gna/gna_score.c | 222 +++++++++++++++
drivers/gpu/drm/gna/gna_score.h | 11 +
include/uapi/drm/gna_drm.h | 169 ++++++++++++
22 files changed, 2347 insertions(+)
create mode 100644 Documentation/gpu/gna.rst
create mode 100644 drivers/gpu/drm/gna/Kbuild
create mode 100644 drivers/gpu/drm/gna/Kconfig
create mode 100644 drivers/gpu/drm/gna/gna_device.c
create mode 100644 drivers/gpu/drm/gna/gna_device.h
create mode 100644 drivers/gpu/drm/gna/gna_gem.h
create mode 100644 drivers/gpu/drm/gna/gna_hw.c
create mode 100644 drivers/gpu/drm/gna/gna_hw.h
create mode 100644 drivers/gpu/drm/gna/gna_ioctl.c
create mode 100644 drivers/gpu/drm/gna/gna_mem.c
create mode 100644 drivers/gpu/drm/gna/gna_mem.h
create mode 100644 drivers/gpu/drm/gna/gna_pci.c
create mode 100644 drivers/gpu/drm/gna/gna_pci.h
create mode 100644 drivers/gpu/drm/gna/gna_request.c
create mode 100644 drivers/gpu/drm/gna/gna_request.h
create mode 100644 drivers/gpu/drm/gna/gna_score.c
create mode 100644 drivers/gpu/drm/gna/gna_score.h
create mode 100644 include/uapi/drm/gna_drm.h
--
2.25.1
---------------------------------------------------------------------
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