Re: [PATCH v2 00/25] AMDKFD kernel driver

[Oded Gabbay]

On 22/07/14 12:21, Daniel Vetter wrote:
> On Tue, Jul 22, 2014 at 10:19 AM, Oded Gabbay <oded.gabbay@xxxxxxx> wrote:
> > > Exactly, just prevent userspace from submitting more. And if you have
> > > misbehaving userspace that submits too much, reset the gpu and tell it
> > > that you're sorry but won't schedule any more work.
> >
> > I'm not sure how you intend to know if a userspace misbehaves or not. Can
> > you elaborate ?
>
> Well that's mostly policy, currently in i915 we only have a check for
> hangs, and if userspace hangs a bit too often then we stop it. I guess
> you can do that with the queue unmapping you've describe in reply to
> Jerome's mail.
> -Daniel
What do you mean by hang ? Like the tdr mechanism in Windows (checks if a gpu 
job takes more than 2 seconds, I think, and if so, terminates the job).

	Oded
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