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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