[PATCH v4 0/2] Add p2p via dmabuf to habanalabs

Christoph Hellwig hch at lst.de
Tue Jul 6 12:21:10 UTC 2021

On Tue, Jul 06, 2021 at 10:40:37AM +0200, Daniel Vetter wrote:
> > Greg, I hope this will be good enough for you to merge this code.
> So we're officially going to use dri-devel for technical details review
> and then Greg for merging so we don't have to deal with other merge
> criteria dri-devel folks have?
> I don't expect anything less by now, but it does make the original claim
> that drivers/misc will not step all over accelerators folks a complete
> farce under the totally-not-a-gpu banner.
> This essentially means that for any other accelerator stack that doesn't
> fit the dri-devel merge criteria, even if it's acting like a gpu and uses
> other gpu driver stuff, you can just send it to Greg and it's good to go.
> There's quite a lot of these floating around actually (and many do have
> semi-open runtimes, like habanalabs have now too, just not open enough to
> be actually useful). It's going to be absolutely lovely having to explain
> to these companies in background chats why habanalabs gets away with their
> stack and they don't.

FYI, I fully agree with Daniel here.  Habanlabs needs to open up their
runtime if they want to push any additional feature in the kernel.
The current situation is not sustainable.

More information about the amd-gfx mailing list