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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-02-05 03:45:30 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-03-09 16:40:52 +0300
commita4675fbc4a7abe072ac6ba38c252f22a91ebcd94 (patch)
treeebdf3fb59ee26392b5bfd1291f3c99e980c9ce5e /drivers/cpufreq/Kconfig
parent34e2c555f3e13c90e9284e23d00f03be8a6e06c5 (diff)
downloadlinux-a4675fbc4a7abe072ac6ba38c252f22a91ebcd94.tar.xz
cpufreq: intel_pstate: Replace timers with utilization update callbacks
Instead of using a per-CPU deferrable timer for utilization sampling and P-states adjustments, register a utilization update callback that will be invoked from the scheduler on utilization changes. The sampling rate is still the same as what was used for the deferrable timers, so the functional impact of this patch should not be significant. Based on an earlier patch from Srinivas Pandruvada. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
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