cpupowerutils: lib - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Dominik Brodowski
parent
02af3cb5aa
commit
6c2b818551
4 changed files with 258 additions and 221 deletions
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@ -42,21 +42,25 @@ int cpufreq_get_hardware_limits(unsigned int cpu,
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return sysfs_get_freq_hardware_limits(cpu, min, max);
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}
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char * cpufreq_get_driver(unsigned int cpu) {
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char *cpufreq_get_driver(unsigned int cpu)
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{
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return sysfs_get_freq_driver(cpu);
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}
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void cpufreq_put_driver(char * ptr) {
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void cpufreq_put_driver(char *ptr)
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{
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if (!ptr)
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return;
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free(ptr);
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}
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struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu) {
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struct cpufreq_policy *cpufreq_get_policy(unsigned int cpu)
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{
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return sysfs_get_freq_policy(cpu);
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}
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void cpufreq_put_policy(struct cpufreq_policy *policy) {
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void cpufreq_put_policy(struct cpufreq_policy *policy)
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{
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if ((!policy) || (!policy->governor))
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return;
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@ -65,11 +69,14 @@ void cpufreq_put_policy(struct cpufreq_policy *policy) {
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free(policy);
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}
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struct cpufreq_available_governors * cpufreq_get_available_governors(unsigned int cpu) {
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struct cpufreq_available_governors *cpufreq_get_available_governors(unsigned
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int cpu)
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{
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return sysfs_get_freq_available_governors(cpu);
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}
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void cpufreq_put_available_governors(struct cpufreq_available_governors *any) {
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void cpufreq_put_available_governors(struct cpufreq_available_governors *any)
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{
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struct cpufreq_available_governors *tmp, *next;
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if (!any)
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@ -86,11 +93,14 @@ void cpufreq_put_available_governors(struct cpufreq_available_governors *any) {
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}
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struct cpufreq_available_frequencies * cpufreq_get_available_frequencies(unsigned int cpu) {
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struct cpufreq_available_frequencies
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*cpufreq_get_available_frequencies(unsigned int cpu)
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{
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return sysfs_get_available_frequencies(cpu);
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}
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void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *any) {
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void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies
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*any) {
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struct cpufreq_available_frequencies *tmp, *next;
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if (!any)
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@ -105,11 +115,13 @@ void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *any
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}
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struct cpufreq_affected_cpus * cpufreq_get_affected_cpus(unsigned int cpu) {
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struct cpufreq_affected_cpus *cpufreq_get_affected_cpus(unsigned int cpu)
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{
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return sysfs_get_freq_affected_cpus(cpu);
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}
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void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any) {
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void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any)
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{
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struct cpufreq_affected_cpus *tmp, *next;
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if (!any)
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@ -124,16 +136,19 @@ void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any) {
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}
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struct cpufreq_affected_cpus * cpufreq_get_related_cpus(unsigned int cpu) {
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struct cpufreq_affected_cpus *cpufreq_get_related_cpus(unsigned int cpu)
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{
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return sysfs_get_freq_related_cpus(cpu);
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}
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void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any) {
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void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any)
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{
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cpufreq_put_affected_cpus(any);
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}
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int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy) {
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int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy)
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{
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if (!policy || !(policy->governor))
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return -EINVAL;
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@ -141,35 +156,39 @@ int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy) {
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}
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int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq) {
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int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq)
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{
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return sysfs_modify_freq_policy_min(cpu, min_freq);
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}
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int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq) {
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int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq)
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{
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return sysfs_modify_freq_policy_max(cpu, max_freq);
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}
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int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) {
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int cpufreq_modify_policy_governor(unsigned int cpu, char *governor)
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{
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if ((!governor) || (strlen(governor) > 19))
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return -EINVAL;
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return sysfs_modify_freq_policy_governor(cpu, governor);
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}
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int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) {
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int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency)
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{
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return sysfs_set_frequency(cpu, target_frequency);
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}
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struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time) {
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struct cpufreq_stats *ret;
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ret = sysfs_get_freq_stats(cpu, total_time);
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return (ret);
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struct cpufreq_stats *cpufreq_get_stats(unsigned int cpu,
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unsigned long long *total_time)
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{
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return sysfs_get_freq_stats(cpu, total_time);
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}
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void cpufreq_put_stats(struct cpufreq_stats *any) {
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void cpufreq_put_stats(struct cpufreq_stats *any)
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{
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struct cpufreq_stats *tmp, *next;
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if (!any)
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@ -183,8 +202,7 @@ void cpufreq_put_stats(struct cpufreq_stats *any) {
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}
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}
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unsigned long cpufreq_get_transitions(unsigned int cpu) {
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unsigned long ret = sysfs_get_freq_transitions(cpu);
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return (ret);
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unsigned long cpufreq_get_transitions(unsigned int cpu)
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{
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return sysfs_get_freq_transitions(cpu);
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}
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@ -93,9 +93,9 @@ extern unsigned long cpufreq_get_transition_latency(unsigned int cpu);
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* considerations by cpufreq policy notifiers in the kernel.
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*/
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extern int cpufreq_get_hardware_limits(unsigned int cpu,
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unsigned long *min,
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unsigned long *max);
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extern int cpufreq_get_hardware_limits(unsigned int cpu,
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unsigned long *min,
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unsigned long *max);
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/* determine CPUfreq driver used
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@ -104,9 +104,9 @@ extern int cpufreq_get_hardware_limits(unsigned int cpu,
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* to avoid memory leakage, please.
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*/
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extern char * cpufreq_get_driver(unsigned int cpu);
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extern char *cpufreq_get_driver(unsigned int cpu);
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extern void cpufreq_put_driver(char * ptr);
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extern void cpufreq_put_driver(char *ptr);
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/* determine CPUfreq policy currently used
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@ -116,7 +116,7 @@ extern void cpufreq_put_driver(char * ptr);
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*/
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extern struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu);
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extern struct cpufreq_policy *cpufreq_get_policy(unsigned int cpu);
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extern void cpufreq_put_policy(struct cpufreq_policy *policy);
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@ -129,41 +129,47 @@ extern void cpufreq_put_policy(struct cpufreq_policy *policy);
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*/
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extern struct cpufreq_available_governors * cpufreq_get_available_governors(unsigned int cpu);
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extern struct cpufreq_available_governors
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*cpufreq_get_available_governors(unsigned int cpu);
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extern void cpufreq_put_available_governors(struct cpufreq_available_governors *first);
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extern void cpufreq_put_available_governors(
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struct cpufreq_available_governors *first);
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/* determine CPU frequency states available
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*
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* only present on _some_ ->target() cpufreq drivers. For information purposes
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* only. Please free allocated memory by calling cpufreq_put_available_frequencies
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* after use.
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* Only present on _some_ ->target() cpufreq drivers. For information purposes
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* only. Please free allocated memory by calling
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* cpufreq_put_available_frequencies after use.
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*/
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extern struct cpufreq_available_frequencies * cpufreq_get_available_frequencies(unsigned int cpu);
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extern struct cpufreq_available_frequencies
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*cpufreq_get_available_frequencies(unsigned int cpu);
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extern void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *first);
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extern void cpufreq_put_available_frequencies(
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struct cpufreq_available_frequencies *first);
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/* determine affected CPUs
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/* determine affected CPUs
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*
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* Remember to call cpufreq_put_affected_cpus when no longer needed
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* to avoid memory leakage, please.
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*/
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extern struct cpufreq_affected_cpus * cpufreq_get_affected_cpus(unsigned int cpu);
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extern struct cpufreq_affected_cpus *cpufreq_get_affected_cpus(unsigned
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int cpu);
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extern void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *first);
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/* determine related CPUs
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/* determine related CPUs
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*
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* Remember to call cpufreq_put_related_cpus when no longer needed
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* to avoid memory leakage, please.
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*/
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extern struct cpufreq_affected_cpus * cpufreq_get_related_cpus(unsigned int cpu);
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extern struct cpufreq_affected_cpus *cpufreq_get_related_cpus(unsigned
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int cpu);
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extern void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *first);
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@ -173,15 +179,16 @@ extern void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *first);
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* This is not available in all kernel versions or configurations.
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*/
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extern struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time);
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extern struct cpufreq_stats *cpufreq_get_stats(unsigned int cpu,
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unsigned long long *total_time);
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extern void cpufreq_put_stats(struct cpufreq_stats *stats);
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extern unsigned long cpufreq_get_transitions(unsigned int cpu);
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/* set new cpufreq policy
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*
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/* set new cpufreq policy
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*
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* Tries to set the passed policy as new policy as close as possible,
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* but results may differ depending e.g. on governors being available.
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*/
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@ -189,7 +196,7 @@ extern unsigned long cpufreq_get_transitions(unsigned int cpu);
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extern int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy);
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/* modify a policy by only changing min/max freq or governor
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/* modify a policy by only changing min/max freq or governor
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*
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* Does not check whether result is what was intended.
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*/
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@ -202,11 +209,12 @@ extern int cpufreq_modify_policy_governor(unsigned int cpu, char *governor);
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/* set a specific frequency
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*
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* Does only work if userspace governor can be used and no external
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* interference (other calls to this function or to set/modify_policy)
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* interference (other calls to this function or to set/modify_policy)
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* occurs. Also does not work on ->range() cpufreq drivers.
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*/
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extern int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency);
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extern int cpufreq_set_frequency(unsigned int cpu,
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unsigned long target_frequency);
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#ifdef __cplusplus
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}
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@ -24,14 +24,14 @@
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static unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen)
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{
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int fd;
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size_t numread;
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ssize_t numread;
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if ( ( fd = open(path, O_RDONLY) ) == -1 )
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fd = open(path, O_RDONLY);
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if (fd == -1)
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return 0;
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numread = read(fd, buf, buflen - 1);
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if ( numread < 1 )
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{
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if (numread < 1) {
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close(fd);
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return 0;
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}
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@ -39,7 +39,7 @@ static unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen)
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buf[numread] = '\0';
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close(fd);
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return numread;
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return (unsigned int) numread;
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}
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@ -65,24 +65,24 @@ static unsigned int sysfs_cpufreq_write_file(unsigned int cpu,
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{
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char path[SYSFS_PATH_MAX];
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int fd;
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size_t numwrite;
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ssize_t numwrite;
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snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpufreq/%s",
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cpu, fname);
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if ( ( fd = open(path, O_WRONLY) ) == -1 )
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fd = open(path, O_WRONLY);
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if (fd == -1)
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return 0;
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numwrite = write(fd, value, len);
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if ( numwrite < 1 )
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{
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if (numwrite < 1) {
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close(fd);
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return 0;
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}
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close(fd);
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return numwrite;
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return (unsigned int) numwrite;
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}
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/* read access to files which contain one numeric value */
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@ -114,21 +114,23 @@ static const char *cpufreq_value_files[MAX_CPUFREQ_VALUE_READ_FILES] = {
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static unsigned long sysfs_cpufreq_get_one_value(unsigned int cpu,
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enum cpufreq_value which)
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{
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unsigned long value;
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unsigned long value;
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unsigned int len;
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char linebuf[MAX_LINE_LEN];
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char *endp;
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if ( which >= MAX_CPUFREQ_VALUE_READ_FILES )
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if (which >= MAX_CPUFREQ_VALUE_READ_FILES)
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return 0;
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if ( ( len = sysfs_cpufreq_read_file(cpu, cpufreq_value_files[which],
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linebuf, sizeof(linebuf))) == 0 )
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len = sysfs_cpufreq_read_file(cpu, cpufreq_value_files[which],
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linebuf, sizeof(linebuf));
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if (len == 0)
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return 0;
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value = strtoul(linebuf, &endp, 0);
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if ( endp == linebuf || errno == ERANGE )
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if (endp == linebuf || errno == ERANGE)
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return 0;
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return value;
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@ -148,7 +150,7 @@ static const char *cpufreq_string_files[MAX_CPUFREQ_STRING_FILES] = {
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};
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static char * sysfs_cpufreq_get_one_string(unsigned int cpu,
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static char *sysfs_cpufreq_get_one_string(unsigned int cpu,
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enum cpufreq_string which)
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{
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char linebuf[MAX_LINE_LEN];
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@ -158,11 +160,13 @@ static char * sysfs_cpufreq_get_one_string(unsigned int cpu,
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if (which >= MAX_CPUFREQ_STRING_FILES)
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return NULL;
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if ( ( len = sysfs_cpufreq_read_file(cpu, cpufreq_string_files[which],
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linebuf, sizeof(linebuf))) == 0 )
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len = sysfs_cpufreq_read_file(cpu, cpufreq_string_files[which],
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linebuf, sizeof(linebuf));
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if (len == 0)
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return NULL;
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if ( ( result = strdup(linebuf) ) == NULL )
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result = strdup(linebuf);
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if (result == NULL)
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return NULL;
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if (result[strlen(result) - 1] == '\n')
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@ -195,8 +199,8 @@ static int sysfs_cpufreq_write_one_value(unsigned int cpu,
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if (which >= MAX_CPUFREQ_WRITE_FILES)
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return 0;
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if ( sysfs_cpufreq_write_file(cpu, cpufreq_write_files[which],
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new_value, len) != len )
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if (sysfs_cpufreq_write_file(cpu, cpufreq_write_files[which],
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new_value, len) != len)
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return -ENODEV;
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return 0;
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@ -235,11 +239,13 @@ int sysfs_get_freq_hardware_limits(unsigned int cpu,
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return 0;
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}
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char * sysfs_get_freq_driver(unsigned int cpu) {
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char *sysfs_get_freq_driver(unsigned int cpu)
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{
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return sysfs_cpufreq_get_one_string(cpu, SCALING_DRIVER);
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}
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struct cpufreq_policy * sysfs_get_freq_policy(unsigned int cpu) {
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struct cpufreq_policy *sysfs_get_freq_policy(unsigned int cpu)
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{
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struct cpufreq_policy *policy;
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policy = malloc(sizeof(struct cpufreq_policy));
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@ -270,27 +276,24 @@ sysfs_get_freq_available_governors(unsigned int cpu) {
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unsigned int pos, i;
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unsigned int len;
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if ( ( len = sysfs_cpufreq_read_file(cpu, "scaling_available_governors",
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linebuf, sizeof(linebuf))) == 0 )
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{
|
||||
len = sysfs_cpufreq_read_file(cpu, "scaling_available_governors",
|
||||
linebuf, sizeof(linebuf));
|
||||
if (len == 0)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
pos = 0;
|
||||
for ( i = 0; i < len; i++ )
|
||||
{
|
||||
if ( linebuf[i] == ' ' || linebuf[i] == '\n' )
|
||||
{
|
||||
if ( i - pos < 2 )
|
||||
for (i = 0; i < len; i++) {
|
||||
if (linebuf[i] == ' ' || linebuf[i] == '\n') {
|
||||
if (i - pos < 2)
|
||||
continue;
|
||||
if ( current ) {
|
||||
current->next = malloc(sizeof *current );
|
||||
if ( ! current->next )
|
||||
if (current) {
|
||||
current->next = malloc(sizeof(*current));
|
||||
if (!current->next)
|
||||
goto error_out;
|
||||
current = current->next;
|
||||
} else {
|
||||
first = malloc( sizeof *first );
|
||||
if ( ! first )
|
||||
first = malloc(sizeof(*first));
|
||||
if (!first)
|
||||
goto error_out;
|
||||
current = first;
|
||||
}
|
||||
|
|
@ -298,10 +301,10 @@ sysfs_get_freq_available_governors(unsigned int cpu) {
|
|||
current->next = NULL;
|
||||
|
||||
current->governor = malloc(i - pos + 1);
|
||||
if ( ! current->governor )
|
||||
if (!current->governor)
|
||||
goto error_out;
|
||||
|
||||
memcpy( current->governor, linebuf + pos, i - pos);
|
||||
memcpy(current->governor, linebuf + pos, i - pos);
|
||||
current->governor[i - pos] = '\0';
|
||||
pos = i + 1;
|
||||
}
|
||||
|
|
@ -310,11 +313,11 @@ sysfs_get_freq_available_governors(unsigned int cpu) {
|
|||
return first;
|
||||
|
||||
error_out:
|
||||
while ( first ) {
|
||||
while (first) {
|
||||
current = first->next;
|
||||
if ( first->governor )
|
||||
free( first->governor );
|
||||
free( first );
|
||||
if (first->governor)
|
||||
free(first->governor);
|
||||
free(first);
|
||||
first = current;
|
||||
}
|
||||
return NULL;
|
||||
|
|
@ -330,30 +333,26 @@ sysfs_get_available_frequencies(unsigned int cpu) {
|
|||
unsigned int pos, i;
|
||||
unsigned int len;
|
||||
|
||||
if ( ( len = sysfs_cpufreq_read_file(cpu,
|
||||
"scaling_available_frequencies",
|
||||
linebuf, sizeof(linebuf))) == 0 )
|
||||
{
|
||||
len = sysfs_cpufreq_read_file(cpu, "scaling_available_frequencies",
|
||||
linebuf, sizeof(linebuf));
|
||||
if (len == 0)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
pos = 0;
|
||||
for ( i = 0; i < len; i++ )
|
||||
{
|
||||
if ( linebuf[i] == ' ' || linebuf[i] == '\n' )
|
||||
{
|
||||
if ( i - pos < 2 )
|
||||
for (i = 0; i < len; i++) {
|
||||
if (linebuf[i] == ' ' || linebuf[i] == '\n') {
|
||||
if (i - pos < 2)
|
||||
continue;
|
||||
if ( i - pos >= SYSFS_PATH_MAX )
|
||||
if (i - pos >= SYSFS_PATH_MAX)
|
||||
goto error_out;
|
||||
if ( current ) {
|
||||
current->next = malloc(sizeof *current );
|
||||
if ( ! current->next )
|
||||
if (current) {
|
||||
current->next = malloc(sizeof(*current));
|
||||
if (!current->next)
|
||||
goto error_out;
|
||||
current = current->next;
|
||||
} else {
|
||||
first = malloc(sizeof *first );
|
||||
if ( ! first )
|
||||
first = malloc(sizeof(*first));
|
||||
if (!first)
|
||||
goto error_out;
|
||||
current = first;
|
||||
}
|
||||
|
|
@ -362,66 +361,7 @@ sysfs_get_available_frequencies(unsigned int cpu) {
|
|||
|
||||
memcpy(one_value, linebuf + pos, i - pos);
|
||||
one_value[i - pos] = '\0';
|
||||
if ( sscanf(one_value, "%lu", ¤t->frequency) != 1 )
|
||||
goto error_out;
|
||||
|
||||
pos = i + 1;
|
||||
}
|
||||
}
|
||||
|
||||
return first;
|
||||
|
||||
error_out:
|
||||
while ( first ) {
|
||||
current = first->next;
|
||||
free(first);
|
||||
first = current;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct cpufreq_affected_cpus * sysfs_get_cpu_list(unsigned int cpu,
|
||||
const char *file) {
|
||||
struct cpufreq_affected_cpus *first = NULL;
|
||||
struct cpufreq_affected_cpus *current = NULL;
|
||||
char one_value[SYSFS_PATH_MAX];
|
||||
char linebuf[MAX_LINE_LEN];
|
||||
unsigned int pos, i;
|
||||
unsigned int len;
|
||||
|
||||
if ( ( len = sysfs_cpufreq_read_file(cpu, file, linebuf,
|
||||
sizeof(linebuf))) == 0 )
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
pos = 0;
|
||||
for ( i = 0; i < len; i++ )
|
||||
{
|
||||
if ( i == len || linebuf[i] == ' ' || linebuf[i] == '\n' )
|
||||
{
|
||||
if ( i - pos < 1 )
|
||||
continue;
|
||||
if ( i - pos >= SYSFS_PATH_MAX )
|
||||
goto error_out;
|
||||
if ( current ) {
|
||||
current->next = malloc(sizeof *current);
|
||||
if ( ! current->next )
|
||||
goto error_out;
|
||||
current = current->next;
|
||||
} else {
|
||||
first = malloc(sizeof *first);
|
||||
if ( ! first )
|
||||
goto error_out;
|
||||
current = first;
|
||||
}
|
||||
current->first = first;
|
||||
current->next = NULL;
|
||||
|
||||
memcpy(one_value, linebuf + pos, i - pos);
|
||||
one_value[i - pos] = '\0';
|
||||
|
||||
if ( sscanf(one_value, "%u", ¤t->cpu) != 1 )
|
||||
if (sscanf(one_value, "%lu", ¤t->frequency) != 1)
|
||||
goto error_out;
|
||||
|
||||
pos = i + 1;
|
||||
|
|
@ -439,44 +379,35 @@ static struct cpufreq_affected_cpus * sysfs_get_cpu_list(unsigned int cpu,
|
|||
return NULL;
|
||||
}
|
||||
|
||||
struct cpufreq_affected_cpus * sysfs_get_freq_affected_cpus(unsigned int cpu) {
|
||||
return sysfs_get_cpu_list(cpu, "affected_cpus");
|
||||
}
|
||||
|
||||
struct cpufreq_affected_cpus * sysfs_get_freq_related_cpus(unsigned int cpu) {
|
||||
return sysfs_get_cpu_list(cpu, "related_cpus");
|
||||
}
|
||||
|
||||
struct cpufreq_stats * sysfs_get_freq_stats(unsigned int cpu, unsigned long long *total_time) {
|
||||
struct cpufreq_stats *first = NULL;
|
||||
struct cpufreq_stats *current = NULL;
|
||||
static struct cpufreq_affected_cpus *sysfs_get_cpu_list(unsigned int cpu,
|
||||
const char *file)
|
||||
{
|
||||
struct cpufreq_affected_cpus *first = NULL;
|
||||
struct cpufreq_affected_cpus *current = NULL;
|
||||
char one_value[SYSFS_PATH_MAX];
|
||||
char linebuf[MAX_LINE_LEN];
|
||||
unsigned int pos, i;
|
||||
unsigned int len;
|
||||
|
||||
if ( ( len = sysfs_cpufreq_read_file(cpu, "stats/time_in_state",
|
||||
linebuf, sizeof(linebuf))) == 0 )
|
||||
len = sysfs_cpufreq_read_file(cpu, file, linebuf, sizeof(linebuf));
|
||||
if (len == 0)
|
||||
return NULL;
|
||||
|
||||
*total_time = 0;
|
||||
pos = 0;
|
||||
for ( i = 0; i < len; i++ )
|
||||
{
|
||||
if ( i == strlen(linebuf) || linebuf[i] == '\n' )
|
||||
{
|
||||
if ( i - pos < 2 )
|
||||
for (i = 0; i < len; i++) {
|
||||
if (i == len || linebuf[i] == ' ' || linebuf[i] == '\n') {
|
||||
if (i - pos < 1)
|
||||
continue;
|
||||
if ( (i - pos) >= SYSFS_PATH_MAX )
|
||||
if (i - pos >= SYSFS_PATH_MAX)
|
||||
goto error_out;
|
||||
if ( current ) {
|
||||
current->next = malloc(sizeof *current );
|
||||
if ( ! current->next )
|
||||
if (current) {
|
||||
current->next = malloc(sizeof(*current));
|
||||
if (!current->next)
|
||||
goto error_out;
|
||||
current = current->next;
|
||||
} else {
|
||||
first = malloc(sizeof *first );
|
||||
if ( ! first )
|
||||
first = malloc(sizeof(*first));
|
||||
if (!first)
|
||||
goto error_out;
|
||||
current = first;
|
||||
}
|
||||
|
|
@ -485,7 +416,76 @@ struct cpufreq_stats * sysfs_get_freq_stats(unsigned int cpu, unsigned long long
|
|||
|
||||
memcpy(one_value, linebuf + pos, i - pos);
|
||||
one_value[i - pos] = '\0';
|
||||
if ( sscanf(one_value, "%lu %llu", ¤t->frequency, ¤t->time_in_state) != 2 )
|
||||
|
||||
if (sscanf(one_value, "%u", ¤t->cpu) != 1)
|
||||
goto error_out;
|
||||
|
||||
pos = i + 1;
|
||||
}
|
||||
}
|
||||
|
||||
return first;
|
||||
|
||||
error_out:
|
||||
while (first) {
|
||||
current = first->next;
|
||||
free(first);
|
||||
first = current;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct cpufreq_affected_cpus *sysfs_get_freq_affected_cpus(unsigned int cpu)
|
||||
{
|
||||
return sysfs_get_cpu_list(cpu, "affected_cpus");
|
||||
}
|
||||
|
||||
struct cpufreq_affected_cpus *sysfs_get_freq_related_cpus(unsigned int cpu)
|
||||
{
|
||||
return sysfs_get_cpu_list(cpu, "related_cpus");
|
||||
}
|
||||
|
||||
struct cpufreq_stats *sysfs_get_freq_stats(unsigned int cpu,
|
||||
unsigned long long *total_time) {
|
||||
struct cpufreq_stats *first = NULL;
|
||||
struct cpufreq_stats *current = NULL;
|
||||
char one_value[SYSFS_PATH_MAX];
|
||||
char linebuf[MAX_LINE_LEN];
|
||||
unsigned int pos, i;
|
||||
unsigned int len;
|
||||
|
||||
len = sysfs_cpufreq_read_file(cpu, "stats/time_in_state",
|
||||
linebuf, sizeof(linebuf));
|
||||
if (len == 0)
|
||||
return NULL;
|
||||
|
||||
*total_time = 0;
|
||||
pos = 0;
|
||||
for (i = 0; i < len; i++) {
|
||||
if (i == strlen(linebuf) || linebuf[i] == '\n') {
|
||||
if (i - pos < 2)
|
||||
continue;
|
||||
if ((i - pos) >= SYSFS_PATH_MAX)
|
||||
goto error_out;
|
||||
if (current) {
|
||||
current->next = malloc(sizeof(*current));
|
||||
if (!current->next)
|
||||
goto error_out;
|
||||
current = current->next;
|
||||
} else {
|
||||
first = malloc(sizeof(*first));
|
||||
if (!first)
|
||||
goto error_out;
|
||||
current = first;
|
||||
}
|
||||
current->first = first;
|
||||
current->next = NULL;
|
||||
|
||||
memcpy(one_value, linebuf + pos, i - pos);
|
||||
one_value[i - pos] = '\0';
|
||||
if (sscanf(one_value, "%lu %llu",
|
||||
¤t->frequency,
|
||||
¤t->time_in_state) != 2)
|
||||
goto error_out;
|
||||
|
||||
*total_time = *total_time + current->time_in_state;
|
||||
|
|
@ -496,7 +496,7 @@ struct cpufreq_stats * sysfs_get_freq_stats(unsigned int cpu, unsigned long long
|
|||
return first;
|
||||
|
||||
error_out:
|
||||
while ( first ) {
|
||||
while (first) {
|
||||
current = first->next;
|
||||
free(first);
|
||||
first = current;
|
||||
|
|
@ -511,29 +511,29 @@ unsigned long sysfs_get_freq_transitions(unsigned int cpu)
|
|||
|
||||
static int verify_gov(char *new_gov, char *passed_gov)
|
||||
{
|
||||
unsigned int i, j=0;
|
||||
unsigned int i, j = 0;
|
||||
|
||||
if (!passed_gov || (strlen(passed_gov) > 19))
|
||||
return -EINVAL;
|
||||
|
||||
strncpy(new_gov, passed_gov, 20);
|
||||
for (i=0;i<20;i++) {
|
||||
for (i = 0; i < 20; i++) {
|
||||
if (j) {
|
||||
new_gov[i] = '\0';
|
||||
continue;
|
||||
}
|
||||
if ((new_gov[i] >= 'a') && (new_gov[i] <= 'z')) {
|
||||
if ((new_gov[i] >= 'a') && (new_gov[i] <= 'z'))
|
||||
continue;
|
||||
}
|
||||
if ((new_gov[i] >= 'A') && (new_gov[i] <= 'Z')) {
|
||||
|
||||
if ((new_gov[i] >= 'A') && (new_gov[i] <= 'Z'))
|
||||
continue;
|
||||
}
|
||||
if (new_gov[i] == '-') {
|
||||
|
||||
if (new_gov[i] == '-')
|
||||
continue;
|
||||
}
|
||||
if (new_gov[i] == '_') {
|
||||
|
||||
if (new_gov[i] == '_')
|
||||
continue;
|
||||
}
|
||||
|
||||
if (new_gov[i] == '\0') {
|
||||
j = 1;
|
||||
continue;
|
||||
|
|
@ -627,7 +627,8 @@ int sysfs_set_freq_policy(unsigned int cpu, struct cpufreq_policy *policy)
|
|||
gov, strlen(gov));
|
||||
}
|
||||
|
||||
int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency) {
|
||||
int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency)
|
||||
{
|
||||
struct cpufreq_policy *pol = sysfs_get_freq_policy(cpu);
|
||||
char userspace_gov[] = "userspace";
|
||||
char freq[SYSFS_PATH_MAX];
|
||||
|
|
@ -640,7 +641,7 @@ int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency) {
|
|||
ret = sysfs_modify_freq_policy_governor(cpu, userspace_gov);
|
||||
if (ret) {
|
||||
cpufreq_put_policy(pol);
|
||||
return (ret);
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -662,7 +663,7 @@ int sysfs_cpu_exists(unsigned int cpu)
|
|||
|
||||
snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/", cpu);
|
||||
|
||||
if ( stat(file, &statbuf) != 0 )
|
||||
if (stat(file, &statbuf) != 0)
|
||||
return -ENOSYS;
|
||||
|
||||
return S_ISDIR(statbuf.st_mode) ? 0 : -ENOSYS;
|
||||
|
|
|
|||
|
|
@ -5,17 +5,27 @@ extern unsigned int sysfs_cpu_exists(unsigned int cpu);
|
|||
extern unsigned long sysfs_get_freq_kernel(unsigned int cpu);
|
||||
extern unsigned long sysfs_get_freq_hardware(unsigned int cpu);
|
||||
extern unsigned long sysfs_get_freq_transition_latency(unsigned int cpu);
|
||||
extern int sysfs_get_freq_hardware_limits(unsigned int cpu, unsigned long *min, unsigned long *max);
|
||||
extern char * sysfs_get_freq_driver(unsigned int cpu);
|
||||
extern struct cpufreq_policy * sysfs_get_freq_policy(unsigned int cpu);
|
||||
extern struct cpufreq_available_governors * sysfs_get_freq_available_governors(unsigned int cpu);
|
||||
extern struct cpufreq_available_frequencies * sysfs_get_available_frequencies(unsigned int cpu);
|
||||
extern struct cpufreq_affected_cpus * sysfs_get_freq_affected_cpus(unsigned int cpu);
|
||||
extern struct cpufreq_affected_cpus * sysfs_get_freq_related_cpus(unsigned int cpu);
|
||||
extern struct cpufreq_stats * sysfs_get_freq_stats(unsigned int cpu, unsigned long long *total_time);
|
||||
extern int sysfs_get_freq_hardware_limits(unsigned int cpu,
|
||||
unsigned long *min, unsigned long *max);
|
||||
extern char *sysfs_get_freq_driver(unsigned int cpu);
|
||||
extern struct cpufreq_policy *sysfs_get_freq_policy(unsigned int cpu);
|
||||
extern struct cpufreq_available_governors *sysfs_get_freq_available_governors(
|
||||
unsigned int cpu);
|
||||
extern struct cpufreq_available_frequencies *sysfs_get_available_frequencies(
|
||||
unsigned int cpu);
|
||||
extern struct cpufreq_affected_cpus *sysfs_get_freq_affected_cpus(
|
||||
unsigned int cpu);
|
||||
extern struct cpufreq_affected_cpus *sysfs_get_freq_related_cpus(
|
||||
unsigned int cpu);
|
||||
extern struct cpufreq_stats *sysfs_get_freq_stats(unsigned int cpu,
|
||||
unsigned long long *total_time);
|
||||
extern unsigned long sysfs_get_freq_transitions(unsigned int cpu);
|
||||
extern int sysfs_set_freq_policy(unsigned int cpu, struct cpufreq_policy *policy);
|
||||
extern int sysfs_modify_freq_policy_min(unsigned int cpu, unsigned long min_freq);
|
||||
extern int sysfs_modify_freq_policy_max(unsigned int cpu, unsigned long max_freq);
|
||||
extern int sysfs_set_freq_policy(unsigned int cpu,
|
||||
struct cpufreq_policy *policy);
|
||||
extern int sysfs_modify_freq_policy_min(unsigned int cpu,
|
||||
unsigned long min_freq);
|
||||
extern int sysfs_modify_freq_policy_max(unsigned int cpu,
|
||||
unsigned long max_freq);
|
||||
extern int sysfs_modify_freq_policy_governor(unsigned int cpu, char *governor);
|
||||
extern int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency);
|
||||
extern int sysfs_set_frequency(unsigned int cpu,
|
||||
unsigned long target_frequency);
|
||||
|
|
|
|||
Loading…
Reference in a new issue