[PATCH v4 0/4] new subsystem for compute accelerator devices

[Sonal Santan]

On 11/19/22 12:44, Oded Gabbay wrote:
> This is the fourth (and hopefully last) version of the patch-set to add the
> new subsystem for compute accelerators. I removed the RFC headline as
> I believe it is now ready for merging.
> 
> Compare to v3, this patch-set contains one additional patch that adds
> documentation regarding the accel subsystem. I hope it's good enough for
> this stage. In addition, there were few very minor fixes according to
> comments received on v3.
> 
> The patches are in the following repo:
> https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/accel.git/log/?h=accel_v4
> 
> As in v3, The HEAD of that branch is a commit adding a dummy driver that
> registers an accel device using the new framework. This can be served
> as a simple reference.
> 
> v1 cover letter:
> https://lkml.org/lkml/2022/10/22/544
> 
> v2 cover letter:
> https://lore.kernel.org/lkml/20221102203405.1797491-1-ogabbay@kernel.org/T/
> 
> v3 cover letter:
> https://lore.kernel.org/lkml/20221106210225.2065371-1-ogabbay@kernel.org/T/

Thanks for defining the new accel subsystem. We are currently working on
DRM based drivers for unannounced acceleration devices. I am fine with
these changes with the assumption that the choice of using classic DRM
or accel is left up to the individual driver.

-Sonal

> 
> Thanks,
> Oded.
> 
> Oded Gabbay (4):
>   drivers/accel: define kconfig and register a new major
>   accel: add dedicated minor for accelerator devices
>   drm: initialize accel framework
>   doc: add documentation for accel subsystem
> 
>  Documentation/accel/index.rst         |  17 ++
>  Documentation/accel/introduction.rst  | 109 +++++++++
>  Documentation/admin-guide/devices.txt |   5 +
>  Documentation/subsystem-apis.rst      |   1 +
>  MAINTAINERS                           |   9 +
>  drivers/Kconfig                       |   2 +
>  drivers/accel/Kconfig                 |  24 ++
>  drivers/accel/drm_accel.c             | 323 ++++++++++++++++++++++++++
>  drivers/gpu/drm/Makefile              |   1 +
>  drivers/gpu/drm/drm_drv.c             | 102 +++++---
>  drivers/gpu/drm/drm_file.c            |   2 +-
>  drivers/gpu/drm/drm_sysfs.c           |  24 +-
>  include/drm/drm_accel.h               |  97 ++++++++
>  include/drm/drm_device.h              |   3 +
>  include/drm/drm_drv.h                 |   8 +
>  include/drm/drm_file.h                |  21 +-
>  16 files changed, 711 insertions(+), 37 deletions(-)
>  create mode 100644 Documentation/accel/index.rst
>  create mode 100644 Documentation/accel/introduction.rst
>  create mode 100644 drivers/accel/Kconfig
>  create mode 100644 drivers/accel/drm_accel.c
>  create mode 100644 include/drm/drm_accel.h
> 
> --
> 2.25.1
>