On Tue, Mar 25, 2014 at 02:28:22PM +0530, Arun R Murthy wrote: > In wait for vblank use usleep_range, which will use hrtimers instead of > msleep. Using msleep(1~20) there are more chances of sleeping for 20ms. > Using usleep_range uses hrtimers and hence are precise, worst case will > trigger an interrupt at the higher/max timeout. > > As per kernel document "Documentation/timers/timers-howto.txt" sleeping > for 10us to 20ms its recomended to use usleep_range. > > Signed-off-by: Arun R Murthy <arun.r.murthy@xxxxxxxxx> Lgtm, I still feel that our use of W=1 is fairly arbitrary and worth tweaking in future. Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
