cpufreq: governor: Keep single copy of information common to policy->cpus

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Some information is common to all CPUs belonging to a policy, but are
kept on per-cpu basis. Lets keep that in another structure common to all
policy->cpus. That will make updates/reads to that less complex and less
error prone.

The memory for cpu_common_dbs_info is allocated/freed at INIT/EXIT, so
that it we don't reallocate it for STOP/START sequence. It will be also
be used (in next patch) while the governor is stopped and so must not be
freed that early.

Reviewed-and-tested-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

This commit is contained in:

Viresh Kumar 2015-07-18 11:30:59 +05:30 • committed by Rafael J. Wysocki

parent 42994af63c

commit 44152cb82d

4 changed files with 114 additions and 58 deletions

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18

drivers/cpufreq/cpufreq_conservative.c

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92

drivers/cpufreq/cpufreq_governor.c

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24

drivers/cpufreq/cpufreq_governor.h

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38

drivers/cpufreq/cpufreq_ondemand.c

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