diff options
| author | Vincent Guittot <vincent.guittot@stericsson.com> | 2011-02-10 11:06:42 +0100 |
|---|---|---|
| committer | Jonas ABERG <jonas.aberg@stericsson.com> | 2011-02-14 13:28:11 +0100 |
| commit | c3c885e5cbae01e25d444dbfb5229f40438f99e7 (patch) | |
| tree | b4a6c85dab12a8793b8a2b625d466348381a0e81 /drivers/cpufreq | |
| parent | f50accab7f3e693852cb2a139ad7c7b20319ea6d (diff) | |
update delay after dbs_cpu_check
calculate ondemand delay after dbs_check_cpu call because it can
modify rate_mult value
use freq_lo_jiffies value for the sub sample period of powersave_bias mode
ST-Ericsson ID: 320302
Change-Id: I5d322b9a8521c12231770bce6b26bc4a5a2e095d
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/15200
Reviewed-by: Martin PERSSON <martin.persson@stericsson.com>
Tested-by: Martin PERSSON <martin.persson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq_ondemand.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 58906e13029..dd0b605dbd1 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -663,10 +663,16 @@ static void do_dbs_timer(struct work_struct *work) /* Setup timer for SUB_SAMPLE */ dbs_info->sample_type = DBS_SUB_SAMPLE; delay = dbs_info->freq_hi_jiffies; + } else { + /* We want all CPUs to do sampling nearly on same jiffy */ + delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate + * dbs_info->rate_mult); + delay -= jiffies % delay; } } else { __cpufreq_driver_target(dbs_info->cur_policy, dbs_info->freq_lo, CPUFREQ_RELATION_H); + delay = dbs_info->freq_lo_jiffies; } queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); mutex_unlock(&dbs_info->timer_mutex); |