diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq_conservative.c | 7 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq_ondemand.c | 28 |
2 files changed, 20 insertions, 15 deletions
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index c4c578defabf..5ef5ede5b884 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -59,7 +59,7 @@ static unsigned int def_sampling_rate; #define MAX_SAMPLING_DOWN_FACTOR (10) #define TRANSITION_LATENCY_LIMIT (10 * 1000) -static void do_dbs_timer(void *data); +static void do_dbs_timer(struct work_struct *work); struct cpu_dbs_info_s { struct cpufreq_policy *cur_policy; @@ -82,7 +82,7 @@ static unsigned int dbs_enable; /* number of CPUs using this policy */ * is recursive for the same process. -Venki */ static DEFINE_MUTEX (dbs_mutex); -static DECLARE_WORK (dbs_work, do_dbs_timer, NULL); +static DECLARE_DELAYED_WORK(dbs_work, do_dbs_timer); struct dbs_tuners { unsigned int sampling_rate; @@ -420,7 +420,7 @@ static void dbs_check_cpu(int cpu) } } -static void do_dbs_timer(void *data) +static void do_dbs_timer(struct work_struct *work) { int i; lock_cpu_hotplug(); @@ -435,7 +435,6 @@ static void do_dbs_timer(void *data) static inline void dbs_timer_init(void) { - INIT_WORK(&dbs_work, do_dbs_timer, NULL); schedule_delayed_work(&dbs_work, usecs_to_jiffies(dbs_tuners_ins.sampling_rate)); return; diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index bf8aa45d4f01..e1cc5113c2ae 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -47,13 +47,17 @@ static unsigned int def_sampling_rate; #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER (1000) #define TRANSITION_LATENCY_LIMIT (10 * 1000) -static void do_dbs_timer(void *data); +static void do_dbs_timer(struct work_struct *work); + +/* Sampling types */ +enum dbs_sample {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE}; struct cpu_dbs_info_s { cputime64_t prev_cpu_idle; cputime64_t prev_cpu_wall; struct cpufreq_policy *cur_policy; - struct work_struct work; + struct delayed_work work; + enum dbs_sample sample_type; unsigned int enable; struct cpufreq_frequency_table *freq_table; unsigned int freq_lo; @@ -407,30 +411,31 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) } } -/* Sampling types */ -enum {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE}; - -static void do_dbs_timer(void *data) +static void do_dbs_timer(struct work_struct *work) { unsigned int cpu = smp_processor_id(); struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, cpu); + enum dbs_sample sample_type = dbs_info->sample_type; /* We want all CPUs to do sampling nearly on same jiffy */ int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); + + /* Permit rescheduling of this work item */ + work_release(work); + delay -= jiffies % delay; if (!dbs_info->enable) return; /* Common NORMAL_SAMPLE setup */ - INIT_WORK(&dbs_info->work, do_dbs_timer, (void *)DBS_NORMAL_SAMPLE); + dbs_info->sample_type = DBS_NORMAL_SAMPLE; if (!dbs_tuners_ins.powersave_bias || - (unsigned long) data == DBS_NORMAL_SAMPLE) { + sample_type == DBS_NORMAL_SAMPLE) { lock_cpu_hotplug(); dbs_check_cpu(dbs_info); unlock_cpu_hotplug(); if (dbs_info->freq_lo) { /* Setup timer for SUB_SAMPLE */ - INIT_WORK(&dbs_info->work, do_dbs_timer, - (void *)DBS_SUB_SAMPLE); + dbs_info->sample_type = DBS_SUB_SAMPLE; delay = dbs_info->freq_hi_jiffies; } } else { @@ -449,7 +454,8 @@ static inline void dbs_timer_init(unsigned int cpu) delay -= jiffies % delay; ondemand_powersave_bias_init(); - INIT_WORK(&dbs_info->work, do_dbs_timer, NULL); + INIT_DELAYED_WORK_NAR(&dbs_info->work, do_dbs_timer); + dbs_info->sample_type = DBS_NORMAL_SAMPLE; queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } |