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cpufreq: interactive: prevents the frequency to directly raise above the hispeed_freq from a lower frequency.

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When the load was below go_hispeed_load, there is a possibility that
choose_freq() would return a frequency which would be higher than the
hispeed_freq. According to the policy we should first jump to the
hispeed_freq, stay there for above_hispeed_delay and then be allowed to
raise higher than that.

Added a check to prevent the frequency to be directly raised to
something higher than the hispeed_freq.

Change-Id: Icda5d848dd9beadcc18835082ddf269732c75bd0
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
This commit is contained in:
Ruchi Kandoi 2014-06-13 16:24:15 -07:00 • committed by John Stultz
parent 61a37b31dc
commit bc88e631b2
1 changed files with 3 additions and 0 deletions
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3
drivers/cpufreq/cpufreq_interactive.c
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@ -377,6 +377,9 @@ static void cpufreq_interactive_timer(unsigned long data)
}
} else {
new_freq = choose_freq(pcpu, loadadjfreq);
if (new_freq > tunables->hispeed_freq &&
pcpu->target_freq < tunables->hispeed_freq)
new_freq = tunables->hispeed_freq;
}
if (pcpu->target_freq >= tunables->hispeed_freq &&