[RFC,1/3] drivers/accel: add new kconfig and update MAINTAINERS

Message ID 20221022214622.18042-2-ogabbay@kernel.org
State New
Headers
Series new subsystem for compute accelerator devices |

Commit Message

Oded Gabbay Oct. 22, 2022, 9:46 p.m. UTC
  Add a new Kconfig for the accel subsystem. The Kconfig currently
contains only the basic CONFIG_ACCEL option that will be used to
decide whether to compile the accel registration code as part of the
drm core functionality.

I have taken the liberty to appropriate the dri-devel mailing list and
the dri-devel IRC channel for the accel subsystem.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 MAINTAINERS           |  8 ++++++++
 drivers/Kconfig       |  2 ++
 drivers/accel/Kconfig | 24 ++++++++++++++++++++++++
 3 files changed, 34 insertions(+)
 create mode 100644 drivers/accel/Kconfig
  

Comments

Greg KH Oct. 23, 2022, 12:40 p.m. UTC | #1
On Sun, Oct 23, 2022 at 12:46:20AM +0300, Oded Gabbay wrote:
> Add a new Kconfig for the accel subsystem. The Kconfig currently
> contains only the basic CONFIG_ACCEL option that will be used to
> decide whether to compile the accel registration code as part of the
> drm core functionality.
> 
> I have taken the liberty to appropriate the dri-devel mailing list and
> the dri-devel IRC channel for the accel subsystem.
> 
> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
> ---
>  MAINTAINERS           |  8 ++++++++
>  drivers/Kconfig       |  2 ++
>  drivers/accel/Kconfig | 24 ++++++++++++++++++++++++

YOu never use drivers/accel/ again in this patch series, was that
intentional?

thanks,

greg k-h
  
Oded Gabbay Oct. 24, 2022, 7:19 a.m. UTC | #2
On Sun, Oct 23, 2022 at 3:40 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Sun, Oct 23, 2022 at 12:46:20AM +0300, Oded Gabbay wrote:
> > Add a new Kconfig for the accel subsystem. The Kconfig currently
> > contains only the basic CONFIG_ACCEL option that will be used to
> > decide whether to compile the accel registration code as part of the
> > drm core functionality.
> >
> > I have taken the liberty to appropriate the dri-devel mailing list and
> > the dri-devel IRC channel for the accel subsystem.
> >
> > Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
> > ---
> >  MAINTAINERS           |  8 ++++++++
> >  drivers/Kconfig       |  2 ++
> >  drivers/accel/Kconfig | 24 ++++++++++++++++++++++++
>
> YOu never use drivers/accel/ again in this patch series, was that
> intentional?
Yes, because I didn't plan for accel to have any core code at this stage.
But according to your other comments, this will probably change
(unless someone thinks otherwise).
Oded
>
> thanks,
>
> greg k-h
  
Jeffrey Hugo Oct. 24, 2022, 3:01 p.m. UTC | #3
On 10/22/2022 3:46 PM, Oded Gabbay wrote:
> Add a new Kconfig for the accel subsystem. The Kconfig currently
> contains only the basic CONFIG_ACCEL option that will be used to
> decide whether to compile the accel registration code as part of the
> drm core functionality.
> 
> I have taken the liberty to appropriate the dri-devel mailing list and
> the dri-devel IRC channel for the accel subsystem.
> 
> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
> ---
>   MAINTAINERS           |  8 ++++++++
>   drivers/Kconfig       |  2 ++
>   drivers/accel/Kconfig | 24 ++++++++++++++++++++++++
>   3 files changed, 34 insertions(+)
>   create mode 100644 drivers/accel/Kconfig
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index cf0f18502372..790d472801d5 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -6820,6 +6820,14 @@ F:	include/drm/drm*
>   F:	include/linux/vga*
>   F:	include/uapi/drm/drm*
>   
> +DRM COMPUTE ACCELERATORS DRIVERS AND FRAMEWORK
> +M:	Oded Gabbay <ogabbay@kernel.org>
> +L:	dri-devel@lists.freedesktop.org
> +S:	Maintained
> +C:	irc://irc.oftc.net/dri-devel
> +T:	git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/accel.git
> +F:	drivers/accel/

I'm willing to assist with reviews, etc.  While I appreciate your 
efforts to drive this, you shouldn't be taking on everything going 
forward. Feel free to add me (or don't) to this entry as you see fit.
  

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index cf0f18502372..790d472801d5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6820,6 +6820,14 @@  F:	include/drm/drm*
 F:	include/linux/vga*
 F:	include/uapi/drm/drm*
 
+DRM COMPUTE ACCELERATORS DRIVERS AND FRAMEWORK
+M:	Oded Gabbay <ogabbay@kernel.org>
+L:	dri-devel@lists.freedesktop.org
+S:	Maintained
+C:	irc://irc.oftc.net/dri-devel
+T:	git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/accel.git
+F:	drivers/accel/
+
 DRM DRIVERS FOR ALLWINNER A10
 M:	Maxime Ripard <mripard@kernel.org>
 M:	Chen-Yu Tsai <wens@csie.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 19ee995bd0ae..968bd0a6fd78 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -99,6 +99,8 @@  source "drivers/media/Kconfig"
 
 source "drivers/video/Kconfig"
 
+source "drivers/accel/Kconfig"
+
 source "sound/Kconfig"
 
 source "drivers/hid/Kconfig"
diff --git a/drivers/accel/Kconfig b/drivers/accel/Kconfig
new file mode 100644
index 000000000000..282ea24f90c5
--- /dev/null
+++ b/drivers/accel/Kconfig
@@ -0,0 +1,24 @@ 
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Compute Acceleration device configuration
+#
+# This framework provides support for compute acceleration devices, such
+# as, but not limited to, Machine-Learning and Deep-Learning acceleration
+# devices
+#
+menuconfig ACCEL
+	tristate "Compute Acceleration Framework"
+	depends on DRM
+	help
+	  Framework for device drivers of compute acceleration devices, such
+	  as, but not limited to, Machine-Learning and Deep-Learning
+	  acceleration devices.
+	  If you say Y here, you need to select the module that's right for
+	  your acceleration device from the list below.
+	  This framework is integrated with the DRM subsystem as compute
+	  accelerators and GPUs share a lot in common and can use almost the
+	  same infrastructure code.
+	  Having said that, acceleration devices will have a different
+	  major number than GPUs, and will be exposed to user-space using
+	  different device files, called accel/accel* (in /dev, sysfs
+	  and debugfs)