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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-02-15 19:20:42 (GMT) |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-03-09 13:39:19 (GMT) |
commit | 34e2c555f3e13c90e9284e23d00f03be8a6e06c5 (patch) | |
tree | c04959660922300f51228923ad6e7e82cf05eefc /drivers/cpufreq/cpufreq_governor.h | |
parent | de1df26b7cef702a32ae876ed45c1112f523df48 (diff) | |
download | linux-34e2c555f3e13c90e9284e23d00f03be8a6e06c5.tar.xz |
cpufreq: Add mechanism for registering utilization update callbacks
Introduce a mechanism by which parts of the cpufreq subsystem
("setpolicy" drivers or the core) can register callbacks to be
executed from cpufreq_update_util() which is invoked by the
scheduler's update_load_avg() on CPU utilization changes.
This allows the "setpolicy" drivers to dispense with their timers
and do all of the computations they need and frequency/voltage
adjustments in the update_load_avg() code path, among other things.
The update_load_avg() changes were suggested by Peter Zijlstra.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.h')
0 files changed, 0 insertions, 0 deletions