diff options
Diffstat (limited to 'runtime/time.c')
| -rw-r--r-- | runtime/time.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/runtime/time.c b/runtime/time.c index a1a7accc..82b2cca7 100644 --- a/runtime/time.c +++ b/runtime/time.c @@ -88,10 +88,14 @@ __stp_init_time(void *info) do_gettimeofday(&time->base_time); time->base_cycles = get_cycles(); +#ifdef CONFIG_CPU_FREQ time->cpufreq = cpufreq_get(smp_processor_id()) / 1000; - if (!time->cpufreq) { + if (time->cpufreq == 0) { time->cpufreq = __stp_estimate_cpufreq(); } +#else + time->cpufreq = __stp_estimate_cpufreq(); +#endif init_timer(&time->timer); time->timer.expires = jiffies + 1; @@ -99,11 +103,11 @@ __stp_init_time(void *info) add_timer(&time->timer); } +#ifdef CONFIG_CPU_FREQ static int __stp_time_cpufreq_callback(struct notifier_block *self, unsigned long state, void *vfreqs) { - int ret = 0; unsigned long flags; struct cpufreq_freqs *freqs; unsigned int freq_mhz; @@ -128,6 +132,7 @@ __stp_time_cpufreq_callback(struct notifier_block *self, struct notifier_block __stp_time_notifier = { .notifier_call = __stp_time_cpufreq_callback, }; +#endif /* CONFIG_CPU_FREQ */ void _stp_kill_time(void) @@ -137,7 +142,10 @@ _stp_kill_time(void) stp_time_t *time = &per_cpu(stp_time, cpu); del_timer_sync(&time->timer); } - cpufreq_unregister_notifier(&__stp_time_notifier, CPUFREQ_TRANSITION_NOTIFIER); +#ifdef CONFIG_CPU_FREQ + cpufreq_unregister_notifier(&__stp_time_notifier, + CPUFREQ_TRANSITION_NOTIFIER); +#endif } int @@ -145,10 +153,15 @@ _stp_init_time(void) { int ret = 0; - if ((ret = on_each_cpu(__stp_init_time, NULL, 0, 1))) - return ret; + ret = on_each_cpu(__stp_init_time, NULL, 0, 1); + +#ifdef CONFIG_CPU_FREQ + if (ret == 0) + ret = cpufreq_register_notifier(&__stp_time_notifier, + CPUFREQ_TRANSITION_NOTIFIER); +#endif - return cpufreq_register_notifier(&__stp_time_notifier, CPUFREQ_TRANSITION_NOTIFIER); + return ret; } int64_t |