Some refinement from the earlier version, as Michal pointed some workarounds we needed to prevent an obstructive break in ABI. Preemption granularity affects how userspace should consider building batches, so we need to match sure that as we switch preemption on, the granulatity doesn't change. Sadly, this means we can't enable preemption on BDW/BSW unconditionally. At least not at this time. The usecase for this naked series is to enable preemption for pageflips. It is also exposed to userspace via a context priority, but we reserve for CAP_SYS_NICE processes for now as we have a very, very raw and unfair scheduler. But it should enable display servers to squeeze that last bit of vblank goodness out of the system. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
