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authorJunjie Wu <junjiew@codeaurora.org>2015-04-06 11:16:45 -0700
committerRuchi Kandoi <kandoiruchi@google.com>2015-05-01 19:54:58 +0000
commit82973084c43d635d68dd1c848bfa3a645acd41d1 (patch)
treefa8ef649951d85e81407ae7a51902a64cd255139 /drivers
parent03e3404e522043dd487793a8e02042ecc09032da (diff)
downloadlinux-linaro-stable-82973084c43d635d68dd1c848bfa3a645acd41d1.tar.gz
cpufreq: interactive: Don't set floor_validate_time during boost
Frequency selection algorithm guarantees its chosen frequency is not lower than hispeed_freq as long as boost is enabled. Setting floor_freq and floor_validate_time during boost could block CPU frequency from going below hispeed_freq even after boostpulse_duration expires, if min_sample_time is higher than boostpulse_duration. This conflicts with the intention of commit de091367ead15b6e95dd1d0743a18f0da5a07ee5 (cpufreq: interactive: specify duration of CPU speed boost pulse) to allow CPU to ramp down immediately after boost expires. It also makes boost behavior inconsistent since it depends on min_sample_time. Avoid setting floor_freq and floor_validate_time when boost starts. Change-Id: I12852998af46cfbfaf8661eb5e8d5301b6f631e7 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/cpufreq/cpufreq_interactive.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c
index ee77f0efca84..12f7db3f4368 100644
--- a/drivers/cpufreq/cpufreq_interactive.c
+++ b/drivers/cpufreq/cpufreq_interactive.c
@@ -609,14 +609,6 @@ static void cpufreq_interactive_boost(struct cpufreq_interactive_tunables *tunab
ktime_to_us(ktime_get());
anyboost = 1;
}
-
- /*
- * Set floor freq and (re)start timer for when last
- * validated.
- */
-
- pcpu->floor_freq = tunables->hispeed_freq;
- pcpu->floor_validate_time = ktime_to_us(ktime_get());
spin_unlock_irqrestore(&pcpu->target_freq_lock, flags[1]);
}