From: Oded Gabbay <firstname.lastname@example.org>
To: Jiho Chu <email@example.com>
Cc: Yuji Ishikawa <firstname.lastname@example.org>,
Greg Kroah-Hartman <email@example.com>,
Arnd Bergmann <firstname.lastname@example.org>,
"Linux-Kernel@Vger. Kernel. Org" <email@example.com>
Subject: Re: New subsystem for acceleration devices
Date: Tue, 2 Aug 2022 22:07:38 +0300 [thread overview]
Message-ID: <CAFCwf12nGdzWUW8TZ46_wopmDGRWPLgh8hanHuPuiu6uRrqzqQ@mail.gmail.com> (raw)
On Tue, Aug 2, 2022 at 8:25 PM Jiho Chu <firstname.lastname@example.org> wrote:
> On Sun, 31 Jul 2022 14:45:34 +0300
> Oded Gabbay <email@example.com> wrote:
> > Hi,
> > Greg and I talked a couple of months ago about preparing a new accel
> > subsystem for compute/acceleration devices that are not GPUs and I
> > think your drivers that you are now trying to upstream fit it as well.
> > Would you be open/interested in migrating your drivers to this new subsystem ?
> > Because there were no outstanding candidates, I have done so far only
> > a basic and partial implementation of the infrastructure for this
> > subsystem, but if you are willing to join I believe I can finish it
> > rather quickly.
> > At start, the new subsystem will provide only a common device
> > character (e.g. /dev/acX) so everyone will do open/close/ioctl on the
> > same device character. Also sysfs/debugfs entries will be under that
> > device and maybe an IOCTL to retrieve information.
> > In the future I plan to move some of habanalabs driver's code into the
> > subsystem itself, for common tasks such as memory management, dma
> > memory allocation, etc.
> > Of course, you will be able to add your own IOCTLs as you see fit.
> > There will be a range of IOCTLs which are device-specific (similar to
> > drm).
> > wdyt ?
> > Thanks,
> > Oded
> Hi, Oded.
> Thanks for sharing your idea. And I'm really positive on the subsystem for ai acceleration devices.
> Samsung NPU driver is trying to upstream now, so I wonder new subsystem can cover all of the operations.
> I'll appreciate if you share the code when you ready, so I can figure out our driver can be migrated.
I'm working on it.
I'm also preparing a small demo driver so you will be able to better
understand how to integrate a driver with this subsystem.
I believe I will be able to post the link during the weekend.
> Jiho Chu
next prev parent reply other threads:[~2022-08-02 19:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220731114605epcas1p1afff6b948f542e2062b60d49a8023f6f@epcas1p1.samsung.com>
2022-07-31 11:45 ` New subsystem for acceleration devices Oded Gabbay
2022-07-31 15:37 ` Greg Kroah-Hartman
2022-08-01 2:29 ` yuji2.ishikawa
2022-08-01 8:21 ` Oded Gabbay
2022-08-03 4:39 ` yuji2.ishikawa
2022-08-03 5:34 ` Greg KH
2022-08-03 20:28 ` Oded Gabbay
2022-08-02 17:25 ` Jiho Chu
2022-08-02 19:07 ` Oded Gabbay [this message]
2022-08-03 19:04 ` Dave Airlie
2022-08-03 20:20 ` Oded Gabbay
2022-08-03 23:31 ` Daniel Stone
2022-08-04 6:46 ` Oded Gabbay
2022-08-04 9:27 ` Jiho Chu
2022-08-03 23:54 ` Dave Airlie
2022-08-04 7:43 ` Oded Gabbay
2022-08-04 14:50 ` Jason Gunthorpe
2022-08-04 17:48 ` Oded Gabbay
2022-08-05 0:22 ` Jason Gunthorpe
2022-08-07 6:43 ` Oded Gabbay
2022-08-07 11:25 ` Oded Gabbay
2022-08-08 6:10 ` Greg Kroah-Hartman
2022-08-08 17:55 ` Jason Gunthorpe
2022-08-09 6:23 ` Greg Kroah-Hartman
2022-08-09 8:04 ` Christoph Hellwig
2022-08-09 8:32 ` Arnd Bergmann
2022-08-09 12:18 ` Jason Gunthorpe
2022-08-09 12:46 ` Arnd Bergmann
2022-08-09 14:22 ` Jason Gunthorpe
2022-08-09 8:45 ` Greg Kroah-Hartman
2022-08-08 17:46 ` Jason Gunthorpe
2022-08-08 20:26 ` Oded Gabbay
2022-08-09 12:43 ` Jason Gunthorpe
2022-08-05 3:02 ` Dave Airlie
2022-08-07 6:50 ` Oded Gabbay
2022-08-09 21:42 ` Oded Gabbay
2022-08-10 9:00 ` Jiho Chu
2022-08-10 14:05 ` yuji2.ishikawa
2022-08-10 14:37 ` Oded Gabbay
2022-08-23 18:23 ` Kevin Hilman
2022-08-23 20:45 ` Oded Gabbay
2022-08-29 20:54 ` Kevin Hilman
2022-09-23 16:21 ` Oded Gabbay
2022-09-26 8:16 ` Christoph Hellwig
2022-09-29 6:50 ` Oded Gabbay
2022-08-04 12:00 ` Tvrtko Ursulin
2022-08-04 15:03 ` Jeffrey Hugo
2022-08-04 17:53 ` Oded Gabbay
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