diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq_stats.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 9dd58835456e..5793e1447fb1 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -180,7 +180,7 @@ static void cpufreq_stats_free_table(unsigned int cpu) cpufreq_cpu_put(policy); } -static int cpufreq_stats_create_table(struct cpufreq_policy *policy, +static int __cpufreq_stats_create_table(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table) { unsigned int i, j, count = 0, ret = 0; @@ -253,6 +253,26 @@ error_get_fail: return ret; } +static void cpufreq_stats_create_table(unsigned int cpu) +{ + struct cpufreq_policy *policy; + struct cpufreq_frequency_table *table; + + /* + * "likely(!policy)" because normally cpufreq_stats will be registered + * before cpufreq driver + */ + policy = cpufreq_cpu_get(cpu); + if (likely(!policy)) + return; + + table = cpufreq_frequency_get_table(policy->cpu); + if (likely(table)) + __cpufreq_stats_create_table(policy, table); + + cpufreq_cpu_put(policy); +} + static void cpufreq_stats_update_policy_cpu(struct cpufreq_policy *policy) { struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, @@ -284,7 +304,7 @@ static int cpufreq_stat_notifier_policy(struct notifier_block *nb, return 0; if (val == CPUFREQ_CREATE_POLICY) - ret = cpufreq_stats_create_table(policy, table); + ret = __cpufreq_stats_create_table(policy, table); else if (val == CPUFREQ_REMOVE_POLICY) __cpufreq_stats_free_table(policy); @@ -346,6 +366,9 @@ static int __init cpufreq_stats_init(void) if (ret) return ret; + for_each_online_cpu(cpu) + cpufreq_stats_create_table(cpu); + ret = cpufreq_register_notifier(¬ifier_trans_block, CPUFREQ_TRANSITION_NOTIFIER); if (ret) { |