80814ae4da
It seems that even though Punit reports the frequency change to have been completed, it still reports the old frequency in the status register for some time. So rather than polling for Punit to complete the frequency change after each request, poll before. This gets rid of the spurious "Punit overrode GPU freq" messages. This also lets us continue working while Punit is performing the actual frequency change. As a result, openarena demo088-test1 timedemo average fps is increased by ~5 fps, and the slowest frame duration is reduced by ~25%. The sysfs cur_freq file always reads the current frequency from Punit anyway, so having rps.cur_delay be slightly off at times doesn't matter. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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