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path: root/drivers/cpufreq/cpufreq_stats.c
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Diffstat (limited to 'drivers/cpufreq/cpufreq_stats.c')
-rw-r--r--drivers/cpufreq/cpufreq_stats.c102
1 files changed, 51 insertions, 51 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 3792b2e2f4a8..cdc5233cf0c4 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -31,15 +31,15 @@ struct cpufreq_stats {
#endif
};
-static int cpufreq_stats_update(struct cpufreq_stats *stat)
+static int cpufreq_stats_update(struct cpufreq_stats *stats)
{
unsigned long long cur_time = get_jiffies_64();
spin_lock(&cpufreq_stats_lock);
- if (stat->time_in_state)
- stat->time_in_state[stat->last_index] +=
- cur_time - stat->last_time;
- stat->last_time = cur_time;
+ if (stats->time_in_state)
+ stats->time_in_state[stats->last_index] +=
+ cur_time - stats->last_time;
+ stats->last_time = cur_time;
spin_unlock(&cpufreq_stats_lock);
return 0;
}
@@ -51,15 +51,15 @@ static ssize_t show_total_trans(struct cpufreq_policy *policy, char *buf)
static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
{
- struct cpufreq_stats *stat = policy->stats;
+ struct cpufreq_stats *stats = policy->stats;
ssize_t len = 0;
int i;
- cpufreq_stats_update(stat);
- for (i = 0; i < stat->state_num; i++) {
- len += sprintf(buf + len, "%u %llu\n", stat->freq_table[i],
+ cpufreq_stats_update(stats);
+ for (i = 0; i < stats->state_num; i++) {
+ len += sprintf(buf + len, "%u %llu\n", stats->freq_table[i],
(unsigned long long)
- jiffies_64_to_clock_t(stat->time_in_state[i]));
+ jiffies_64_to_clock_t(stats->time_in_state[i]));
}
return len;
}
@@ -67,36 +67,36 @@ static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
{
- struct cpufreq_stats *stat = policy->stats;
+ struct cpufreq_stats *stats = policy->stats;
ssize_t len = 0;
int i, j;
- cpufreq_stats_update(stat);
+ cpufreq_stats_update(stats);
len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n");
len += snprintf(buf + len, PAGE_SIZE - len, " : ");
- for (i = 0; i < stat->state_num; i++) {
+ for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
- stat->freq_table[i]);
+ stats->freq_table[i]);
}
if (len >= PAGE_SIZE)
return PAGE_SIZE;
len += snprintf(buf + len, PAGE_SIZE - len, "\n");
- for (i = 0; i < stat->state_num; i++) {
+ for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ",
- stat->freq_table[i]);
+ stats->freq_table[i]);
- for (j = 0; j < stat->state_num; j++) {
+ for (j = 0; j < stats->state_num; j++) {
if (len >= PAGE_SIZE)
break;
len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
- stat->trans_table[i*stat->max_state+j]);
+ stats->trans_table[i*stats->max_state+j]);
}
if (len >= PAGE_SIZE)
break;
@@ -125,28 +125,28 @@ static struct attribute_group stats_attr_group = {
.name = "stats"
};
-static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
+static int freq_table_get_index(struct cpufreq_stats *stats, unsigned int freq)
{
int index;
- for (index = 0; index < stat->max_state; index++)
- if (stat->freq_table[index] == freq)
+ for (index = 0; index < stats->max_state; index++)
+ if (stats->freq_table[index] == freq)
return index;
return -1;
}
static void __cpufreq_stats_free_table(struct cpufreq_policy *policy)
{
- struct cpufreq_stats *stat = policy->stats;
+ struct cpufreq_stats *stats = policy->stats;
/* Already freed */
- if (!stat)
+ if (!stats)
return;
- pr_debug("%s: Free stat table\n", __func__);
+ pr_debug("%s: Free stats table\n", __func__);
sysfs_remove_group(&policy->kobj, &stats_attr_group);
- kfree(stat->time_in_state);
- kfree(stat);
+ kfree(stats->time_in_state);
+ kfree(stats);
policy->stats = NULL;
}
@@ -166,7 +166,7 @@ static void cpufreq_stats_free_table(unsigned int cpu)
static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
{
unsigned int i, count = 0, ret = 0;
- struct cpufreq_stats *stat;
+ struct cpufreq_stats *stats;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
struct cpufreq_frequency_table *pos, *table;
@@ -179,16 +179,16 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
if (policy->stats)
return -EEXIST;
- stat = kzalloc(sizeof(*stat), GFP_KERNEL);
- if ((stat) == NULL)
+ stats = kzalloc(sizeof(*stats), GFP_KERNEL);
+ if ((stats) == NULL)
return -ENOMEM;
ret = sysfs_create_group(&policy->kobj, &stats_attr_group);
if (ret)
goto error_out;
- stat->cpu = cpu;
- policy->stats = stat;
+ stats->cpu = cpu;
+ policy->stats = stats;
cpufreq_for_each_valid_entry(pos, table)
count++;
@@ -198,31 +198,31 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
alloc_size += count * count * sizeof(int);
#endif
- stat->max_state = count;
- stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
- if (!stat->time_in_state) {
+ stats->max_state = count;
+ stats->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
+ if (!stats->time_in_state) {
ret = -ENOMEM;
goto error_alloc;
}
- stat->freq_table = (unsigned int *)(stat->time_in_state + count);
+ stats->freq_table = (unsigned int *)(stats->time_in_state + count);
#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
- stat->trans_table = stat->freq_table + count;
+ stats->trans_table = stats->freq_table + count;
#endif
i = 0;
cpufreq_for_each_valid_entry(pos, table)
- if (freq_table_get_index(stat, pos->frequency) == -1)
- stat->freq_table[i++] = pos->frequency;
- stat->state_num = i;
+ if (freq_table_get_index(stats, pos->frequency) == -1)
+ stats->freq_table[i++] = pos->frequency;
+ stats->state_num = i;
spin_lock(&cpufreq_stats_lock);
- stat->last_time = get_jiffies_64();
- stat->last_index = freq_table_get_index(stat, policy->cur);
+ stats->last_time = get_jiffies_64();
+ stats->last_index = freq_table_get_index(stats, policy->cur);
spin_unlock(&cpufreq_stats_lock);
return 0;
error_alloc:
sysfs_remove_group(&policy->kobj, &stats_attr_group);
error_out:
- kfree(stat);
+ kfree(stats);
policy->stats = NULL;
return ret;
}
@@ -273,7 +273,7 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
{
struct cpufreq_freqs *freq = data;
struct cpufreq_policy *policy = cpufreq_cpu_get(freq->cpu);
- struct cpufreq_stats *stat;
+ struct cpufreq_stats *stats;
int old_index, new_index;
if (!policy) {
@@ -289,26 +289,26 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
goto put_policy;
}
- stat = policy->stats;
+ stats = policy->stats;
- old_index = stat->last_index;
- new_index = freq_table_get_index(stat, freq->new);
+ old_index = stats->last_index;
+ new_index = freq_table_get_index(stats, freq->new);
- /* We can't do stat->time_in_state[-1]= .. */
+ /* We can't do stats->time_in_state[-1]= .. */
if (old_index == -1 || new_index == -1)
goto put_policy;
- cpufreq_stats_update(stat);
+ cpufreq_stats_update(stats);
if (old_index == new_index)
goto put_policy;
spin_lock(&cpufreq_stats_lock);
- stat->last_index = new_index;
+ stats->last_index = new_index;
#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
- stat->trans_table[old_index * stat->max_state + new_index]++;
+ stats->trans_table[old_index * stats->max_state + new_index]++;
#endif
- stat->total_trans++;
+ stats->total_trans++;
spin_unlock(&cpufreq_stats_lock);
put_policy:
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 10:35:26 +0000