33 static int cpufreq_stats_update(struct cpufreq_stats *stats)  in cpufreq_stats_update()  argument
38 	stats->time_in_state[stats->last_index] += cur_time - stats->last_time;  in cpufreq_stats_update()
39 	stats->last_time = cur_time;  in cpufreq_stats_update()
46 	return sprintf(buf, "%d\n", policy->stats->total_trans);  in show_total_trans()
51 	struct cpufreq_stats *stats = policy->stats;  in show_time_in_state()  local
55 	cpufreq_stats_update(stats);  in show_time_in_state()
56 	for (i = 0; i < stats->state_num; i++) {  in show_time_in_state()
57 		len += sprintf(buf + len, "%u %llu\n", stats->freq_table[i],  in show_time_in_state()
59 			jiffies_64_to_clock_t(stats->time_in_state[i]));  in show_time_in_state()
67 	struct cpufreq_stats *stats = policy->stats;  in show_trans_table()  local
73 	for (i = 0; i < stats->state_num; i++) {  in show_trans_table()
77 				stats->freq_table[i]);  in show_trans_table()
84 	for (i = 0; i < stats->state_num; i++) {  in show_trans_table()
89 				stats->freq_table[i]);  in show_trans_table()
91 		for (j = 0; j < stats->state_num; j++) {  in show_trans_table()
95 					stats->trans_table[i*stats->max_state+j]);  in show_trans_table()
124 static int freq_table_get_index(struct cpufreq_stats *stats, unsigned int freq)  in freq_table_get_index()  argument
127 	for (index = 0; index < stats->max_state; index++)  in freq_table_get_index()
128 		if (stats->freq_table[index] == freq)  in freq_table_get_index()
135 	struct cpufreq_stats *stats = policy->stats;  in __cpufreq_stats_free_table()  local
138 	if (!stats)  in __cpufreq_stats_free_table()
144 	kfree(stats->time_in_state);  in __cpufreq_stats_free_table()
145 	kfree(stats);  in __cpufreq_stats_free_table()
146 	policy->stats = NULL;  in __cpufreq_stats_free_table()
165 	struct cpufreq_stats *stats;  in __cpufreq_stats_create_table()  local
176 	if (policy->stats)  in __cpufreq_stats_create_table()
179 	stats = kzalloc(sizeof(*stats), GFP_KERNEL);  in __cpufreq_stats_create_table()
180 	if (!stats)  in __cpufreq_stats_create_table()
194 	stats->time_in_state = kzalloc(alloc_size, GFP_KERNEL);  in __cpufreq_stats_create_table()
195 	if (!stats->time_in_state)  in __cpufreq_stats_create_table()
198 	stats->freq_table = (unsigned int *)(stats->time_in_state + count);  in __cpufreq_stats_create_table()
201 	stats->trans_table = stats->freq_table + count;  in __cpufreq_stats_create_table()
204 	stats->max_state = count;  in __cpufreq_stats_create_table()
208 		if (freq_table_get_index(stats, pos->frequency) == -1)  in __cpufreq_stats_create_table()
209 			stats->freq_table[i++] = pos->frequency;  in __cpufreq_stats_create_table()
211 	stats->state_num = i;  in __cpufreq_stats_create_table()
212 	stats->last_time = get_jiffies_64();  in __cpufreq_stats_create_table()
213 	stats->last_index = freq_table_get_index(stats, policy->cur);  in __cpufreq_stats_create_table()
215 	policy->stats = stats;  in __cpufreq_stats_create_table()
221 	policy->stats = NULL;  in __cpufreq_stats_create_table()
222 	kfree(stats->time_in_state);  in __cpufreq_stats_create_table()
224 	kfree(stats);  in __cpufreq_stats_create_table()
265 	struct cpufreq_stats *stats;  in cpufreq_stat_notifier_trans()  local
276 	if (!policy->stats) {  in cpufreq_stat_notifier_trans()
281 	stats = policy->stats;  in cpufreq_stat_notifier_trans()
283 	old_index = stats->last_index;  in cpufreq_stat_notifier_trans()
284 	new_index = freq_table_get_index(stats, freq->new);  in cpufreq_stat_notifier_trans()
293 	cpufreq_stats_update(stats);  in cpufreq_stat_notifier_trans()
295 	stats->last_index = new_index;  in cpufreq_stat_notifier_trans()
297 	stats->trans_table[old_index * stats->max_state + new_index]++;  in cpufreq_stat_notifier_trans()
299 	stats->total_trans++;  in cpufreq_stat_notifier_trans()