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cpufreq: create cpufreq_table_count_valid_entries()

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We need such a routine at two places already, lets create one.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Viresh Kumar 2017-04-25 15:57:15 +05:30 committed by Eduardo Valentin
parent 4d753aa7b6
commit 55d8529313
3 changed files with 27 additions and 22 deletions
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13
drivers/cpufreq/cpufreq_stats.c
View File

@ -170,11 +170,10 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
unsigned int i = 0, count = 0, ret = -ENOMEM;
struct cpufreq_stats *stats;
unsigned int alloc_size;
struct cpufreq_frequency_table *pos, *table;
struct cpufreq_frequency_table *pos;
/* We need cpufreq table for creating stats table */
table = policy->freq_table;
if (unlikely(!table))
count = cpufreq_table_count_valid_entries(policy);
if (!count)
return;
/* stats already initialized */
@ -185,10 +184,6 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
if (!stats)
return;
/* Find total allocation size */
cpufreq_for_each_valid_entry(pos, table)
count++;
alloc_size = count * sizeof(int) + count * sizeof(u64);
alloc_size += count * count * sizeof(int);
@ -205,7 +200,7 @@ void cpufreq_stats_create_table(struct cpufreq_policy *policy)
stats->max_state = count;
/* Find valid-unique entries */
cpufreq_for_each_valid_entry(pos, table)
cpufreq_for_each_valid_entry(pos, policy->freq_table)
if (freq_table_get_index(stats, pos->frequency) == -1)
stats->freq_table[i++] = pos->frequency;

22
drivers/thermal/cpu_cooling.c
View File

@ -739,7 +739,6 @@ __cpufreq_cooling_register(struct device_node *np,
struct thermal_cooling_device *cdev;
struct cpufreq_cooling_device *cpufreq_cdev;
char dev_name[THERMAL_NAME_LENGTH];
struct cpufreq_frequency_table *pos, *table;
unsigned int freq, i, num_cpus;
int ret;
struct thermal_cooling_device_ops *cooling_ops;
@ -750,9 +749,10 @@ __cpufreq_cooling_register(struct device_node *np,
return ERR_PTR(-EINVAL);
}
table = policy->freq_table;
if (!table) {
pr_debug("%s: CPUFreq table not found\n", __func__);
i = cpufreq_table_count_valid_entries(policy);
if (!i) {
pr_debug("%s: CPUFreq table not found or has no valid entries\n",
__func__);
return ERR_PTR(-ENODEV);
}
@ -777,20 +777,16 @@ __cpufreq_cooling_register(struct device_node *np,
goto free_time_in_idle;
}
/* Find max levels */
cpufreq_for_each_valid_entry(pos, table)
cpufreq_cdev->max_level++;
/* max_level is an index, not a counter */
cpufreq_cdev->max_level = i - 1;
cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) *
cpufreq_cdev->max_level, GFP_KERNEL);
cpufreq_cdev->freq_table = kmalloc(sizeof(*cpufreq_cdev->freq_table) * i,
GFP_KERNEL);
if (!cpufreq_cdev->freq_table) {
cdev = ERR_PTR(-ENOMEM);
goto free_time_in_idle_timestamp;
}
/* max_level is an index, not a counter */
cpufreq_cdev->max_level--;
cpumask_copy(&cpufreq_cdev->allowed_cpus, policy->related_cpus);
if (capacitance) {
@ -816,7 +812,7 @@ __cpufreq_cooling_register(struct device_node *np,
/* Fill freq-table in descending order of frequencies */
for (i = 0, freq = -1; i <= cpufreq_cdev->max_level; i++) {
freq = find_next_max(table, freq);
freq = find_next_max(policy->freq_table, freq);
cpufreq_cdev->freq_table[i] = freq;
/* Warn for duplicate entries */

14
include/linux/cpufreq.h
View File

@ -862,6 +862,20 @@ static inline int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
return -EINVAL;
}
}
static inline int cpufreq_table_count_valid_entries(const struct cpufreq_policy *policy)
{
struct cpufreq_frequency_table *pos;
int count = 0;
if (unlikely(!policy->freq_table))
return 0;
cpufreq_for_each_valid_entry(pos, policy->freq_table)
count++;
return count;
}
#else
static inline int cpufreq_boost_trigger_state(int state)
{