On Thu, Mar 02, 2017 at 06:13:15PM +0000, Chris Wilson wrote: > On Thu, Mar 02, 2017 at 08:01:40PM +0200, Mika Kuoppala wrote: > > We were passively acting on the high counter value bit > > and as it was never set, we were only utilizing the > > the 32bits of resolution. As the divisor with these platforms > > is quite high, the wrap around happened in the less than 13 seconds. > > > > If we toggle the resolution bit in the control register and > > read twice we can get 8 bits more, bringing the wrap in > > 54 minute range. > > > > Reported-by: Len Brown <len.brown@xxxxxxxxx> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94852 Hah, that was Len complaining about the wrap at 91 minutes. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
