On 22/07/14 12:21, Daniel Vetter wrote:
> On Tue, Jul 22, 2014 at 10:19 AM, Oded Gabbay <oded.gabbay at amd.com> 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
