On Wed, Jul 16, 2014 at 10:21:14AM +0200, Daniel Vetter wrote: > On Tue, Jul 15, 2014 at 7:53 PM, Bridgman, John <[email protected]> wrote: > [snip away the discussion about hsa device discover, I'm hijacking > this thread just for the event/fence stuff here.] > > > ... There's an event mechanism still to come - mostly for communicating > > fences and shader interrupts back to userspace, but also used for "device > > change" notifications, so no polling of sysfs. > > That could would be interesting. On i915 my plan is to internally use > the recently added struct fence from Maarten. For the external > interface for userspace that wants explicit control over fences I'm > leaning towards polishing the android syncpt stuff (currently in > staging). But in any case I _really_ want to avoid that we end up with > multiple different and incompatible explicit fencing interfaces on > linux.
I agree, and I'll say it stronger than that, we WILL NOT have different and incompatible fencing interfaces in the kernel. That way lies madness. John, take a look at what is now in linux-next, it should provide what you need here, right? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
