On Wed, Mar 15, 2017 at 05:43:03PM +0200, Mika Kuoppala wrote: > We have used cz timestamp register to gain a reference time wrt > to residency calculations. The residency counts are in cz clk ticks > (333Mhz clock) but for some reason the cz timestamp register gives > 100us units. Perhaps for some other usage, the base-ten based values > are easier, but in residency calculations raw units would have been > the easiest. > > As there is not much advantage of using base-ten clock through > a more costly punit access, take our reference times directly from > kernel clock. > > v2: use ktime (Chris, Ville) > > Cc: Chris Wilson <[email protected]> > Cc: Ville Syrjälä <[email protected]> > Signed-off-by: Mika Kuoppala <[email protected]> Reviewed-by: Chris Wilson <[email protected]> -Chris
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