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cpufreq: interactive: Report CPU loads through govinfo notifier

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Report CPU load to modules subscribed to cpufreq govinfo notification
chain every time governor timer expires to evaluate load.

Change-Id: I0b35947b1924c179649aafa0b7b93d974164af1a
[junjiew@codeaurora.org: Resolved trivial merge conflicts]
Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
This commit is contained in:
Rohit Gupta 2014-11-14 17:59:42 -08:00 • committed by David Keitel
parent 2d91526439
commit f4d69aec4f
1 changed files with 9 additions and 1 deletions
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10
drivers/cpufreq/cpufreq_interactive.c
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@ -421,6 +421,7 @@ static void cpufreq_interactive_timer(unsigned long data)
unsigned int index; unsigned int index;
unsigned long flags; unsigned long flags;
u64 max_fvtime; u64 max_fvtime;
struct cpufreq_govinfo int_info;
if (!down_read_trylock(&pcpu->enable_sem)) if (!down_read_trylock(&pcpu->enable_sem))
return; return;
@ -459,8 +460,15 @@ static void cpufreq_interactive_timer(unsigned long data)
do_div(cputime_speedadj, delta_time); do_div(cputime_speedadj, delta_time);
} }
spin_lock_irqsave(&pcpu->target_freq_lock, flags);
loadadjfreq = (unsigned int)cputime_speedadj * 100; loadadjfreq = (unsigned int)cputime_speedadj * 100;
int_info.cpu = data;
int_info.load = loadadjfreq / pcpu->policy->max;
int_info.sampling_rate_us = tunables->timer_rate;
atomic_notifier_call_chain(&cpufreq_govinfo_notifier_list,
CPUFREQ_LOAD_CHANGE, &int_info);
spin_lock_irqsave(&pcpu->target_freq_lock, flags);
cpu_load = loadadjfreq / pcpu->policy->cur; cpu_load = loadadjfreq / pcpu->policy->cur;
tunables->boosted = tunables->boost_val || now < tunables->boostpulse_endtime; tunables->boosted = tunables->boost_val || now < tunables->boostpulse_endtime;