search for: timeval_to_ns

Just updated versions of the patches send by Mario Kleiner. This ones are rebased on top of the nouveau tree and updated according to the review feedback. Regards, Lucas

Hi, these are two patches against the nouveau kms driver. The first patch makes sure that pageflip completion events get their vblank count and timestamp from the drm. The second patch from Lucas Stach, here included with his permission, makes sure that the timestamps of vblanks are calculated with high precision and robustness. Both patches together make sure that all timestamps returned by the

...lank interval of flip + * completion? If so, need to increment vblank count and + * add one videorefresh duration to returned timestamp + * to account for this. We assume this happened if we + * get called over 0.9 frame durations after the last + * timestamped vblank. + */ + if (10 * (timeval_to_ns(&tnow) - timeval_to_ns(&tvbl)) > + 9 * s->framedur_ns) { + e->event.sequence++; + tvbl = ns_to_timeval(timeval_to_ns(&tvbl) + + s->framedur_ns); + } + + e->event.tv_sec = tvbl.tv_sec; + e->event.tv_usec = tvbl.tv_usec; list_add_tail(&e->base.li...