Dietmar Eggemann c4ed8aa44d
ANDROID: implement max frequency capping ...
Implements the Max Frequency Capping Engine (MFCE) getter function
topology_get_max_freq_scale() to provide the scheduler with a
maximum frequency scaling correction factor for more accurate cpu
capacity handling by being able to deal with max frequency capping.
This scaling factor describes the influence of running a cpu with a
current maximum frequency (policy) lower than the maximum possible
frequency (cpuinfo).
The factor is:
policy_max_freq(cpu) << SCHED_CAPACITY_SHIFT / cpuinfo_max_freq(cpu)
It also implements the MFCE setter function arch_set_max_freq_scale()
which is called from cpufreq_set_policy().
Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com >
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com >
[Trivial cherry-pick issue in cpufreq.c]
Signed-off-by: Quentin Perret <quentin.perret@arm.com >
Change-Id: I59e52861ee260755ab0518fe1f7183a2e4e3d0fc
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