On Fri, Jan 20, 2017 at 09:18:24AM +0530, Sagar Arun Kamble wrote: > When we reach the user's RPS limits, stop requesting an adjustment. Even > though we will clamp the requested frequency later, we rely on interrupt > masking to disable further adjustments in the same direction. Even > though it is unlikely (one scenario is a bug in the driver, another is > careful manipulation through the uAPI) if we keep exponentially > increasing the adjustment value, it will wrap and cause a negative > adjustment. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx> Grabbed this one because I know it is safe. There's some underlying trouble fouling guc so judging results for patch 1 is tricky. A single run suggests that all guc machines are affected by an unrecoverable hang following that patch - but the same issue seems present without the patch just on isolated machines. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
