Re: [RFC] GPU reset notification interface

Adam Jackson
2012-07-18T16:36:26Z

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On Wed, 2012-07-18 at 09:23 -0700, Ian Romanick wrote:
> On 07/18/2012 02:20 AM, Daniel Vetter wrote:
> > A few things:
> > - I agree with Chris that reset_in_progress should go, if userspace can
> > sneak in and witness a reset event, we have a bug in the kernel. Since
> > very recently, we actually have a few bugs less in that area ;-)
>
> I'm operating under the assumption that, from user space's perspective,
> resets are not instantaneous. If resets are instantaneous, that may
> change things.

Do they need to be instantaneous, or do they merely need to be
atomic-and-reasonably-quick? Could just block new ioctl submission
until the reset completes.

- ajax

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