コード例 #1
0
static gboolean
cpufreq_selector_libcpufreq_validate_governor (CPUFreqSelectorLibcpufreq *selector,
					       const gchar               *governor)
{
	guint                cpu;
	CPUFreqGovernorList *govs, *gov;

	g_object_get (G_OBJECT (selector),
		      "cpu", &cpu,
		      NULL);

	govs = cpufreq_get_available_governors (cpu);
	if (!govs)
		return FALSE;

	for (gov = govs; gov; gov = gov->next) {
		if (g_ascii_strcasecmp (gov->governor, governor) == 0) {
			cpufreq_put_available_governors (govs);

			return TRUE;
		}
	}

	cpufreq_put_available_governors (govs);

	return FALSE;
}
コード例 #2
0
ファイル: cpufreq.c プロジェクト: femdom/cpufreq
struct cpufreq_available_governors *cpufreq_get_available_governors(unsigned int cpu)
{
  if (cpu >= MAX_CPUS) {
    errno = ENOENT;
    return NULL;
  }

  struct cpufreq_available_governors *first = NULL;
  struct cpufreq_available_governors *current = NULL;

  char* governors[] = {
    "conservative", "ondemand", "powersave", "userspace", "performance"
  };

  unsigned long i;
  for(i = 0; i < 5; i++) {
    if (governors[i] == NULL) {
      continue;
    }

    struct cpufreq_available_governors *next = malloc(sizeof(struct cpufreq_available_governors));

    if (!next) {
      cpufreq_put_available_governors(first);
      return NULL;
    }

    if (current) {
      current->next = next;
    }
    current = next;
    current->governor = strndup(governors[i], BUFFER_SIZE);

    if (!current->governor) {
      cpufreq_put_available_governors(first);
      return NULL;
    }

    if (first == NULL) {
      first = current;
    }

    current->first = first;
  }

  return first;
}
コード例 #3
0
ファイル: cpupower.c プロジェクト: tomaszg7/gkrellm2-cpupower
static void next_governor(unsigned int cpu) {

  struct cpufreq_available_governors *govs;

  for ( govs = cpufreq_get_available_governors(cpu); (govs->next!= NULL) && strcmp(govs->governor,governor[cpu]); govs=govs->next ) {}

  char cmd[length];
  sprintf(cmd, "sudo cpupower -c %u frequency-set -g %s", cpu, govs->next==NULL ? govs->first->governor : govs->next->governor);
  system(cmd);
  cpufreq_put_available_governors(govs->first);
}
コード例 #4
0
ファイル: dvfs.c プロジェクト: adityaholla/Hammr
JNIEXPORT jobjectArray JNICALL Java_platforms_x86_X86_1DVFS_getAvailableGovernors
  (JNIEnv *env, jobject obj, jint cpu)
{
	struct cpufreq_available_governors *govs, *first = NULL;
	jobjectArray govNames;
	jclass cls;
	jstring str = NULL;
	int i = 0, length = 0;

	govs = cpufreq_get_available_governors((unsigned int)cpu);

	if (govs)
		first = govs->first;

	while (govs) {
		govs = govs->next;
		length++;
	}

	cls = (*env)->FindClass(env, "Ljava/lang/String;");
	govNames = (*env)->NewObjectArray(env, (jsize) length, cls, NULL);

	if (!first)
		return govNames;

	govs = first;
	while (govs) {
		str = (*env)->NewStringUTF(env, govs->governor);
		(*env)->SetObjectArrayElement(env, govNames, i, str);
		(*env)->DeleteLocalRef(env, str);

		i++;
		govs = govs->next;
	}

	(*env)->DeleteLocalRef(env, cls);
	cpufreq_put_available_governors(first);
	return govNames;
}
コード例 #5
0
static GList *
cpufreq_monitor_libcpufreq_get_available_governors (CPUFreqMonitor *monitor)
{
    guint                cpu;
    GList               *list = NULL;
    CPUFreqGovernorList *govs, *gov;

    g_object_get (G_OBJECT (monitor),
                  "cpu", &cpu, NULL);

    govs = cpufreq_get_available_governors (cpu);
    if (!govs)
        return NULL;

    for (gov = govs; gov; gov = gov->next) {
        list = g_list_prepend (list, g_strdup (gov->governor));
    }

    cpufreq_put_available_governors (govs);

    return list;
}
コード例 #6
0
ファイル: obcpufreq.c プロジェクト: poomon/obcpufreq
void print_cpu(unsigned int cpu, unsigned int n_cpus)
{
    int i;
    char str[MAXLEN];
    char premark[MAXLEN];
    char postmark[MAXLEN];
    unsigned long curfreq, freq;
    struct cpufreq_available_frequencies* freqs;
    struct cpufreq_available_governors* govs;
    struct cpufreq_policy* policy;

    if (cpu + 1 == n_cpus)
        // last cpu column
        printf("<item label='cpu %u'/>\n", cpu);
    else if (cpu + 1 < n_cpus)
    {
        printf("<menu label='cpu %u' id='obcpufreq-cpu%u'>\n", cpu, cpu + 1);
        print_cpu(cpu + 1, n_cpus);
        printf("</menu>\n");
    }
    printf(SEPARATOR);

    curfreq = cpufreq_get_freq_kernel(cpu);
    policy = cpufreq_get_policy(cpu);

    // print available governors
    govs = cpufreq_get_available_governors(cpu);
    if (govs)
    {
        printf("<menu label='governors' id='obcpufreq-governors%u'>\n", cpu);
        for (; govs; govs = govs->next)
        {
            premark[0] = ' ';
            premark[1] = '\0';
            if (!strcmp(govs->governor, policy->governor))
                premark[0] = '*';
            printf("  <item label='%s%s'><action name='Execute'><command>"
                   CPUFREQ_SET " --cpu %u -g %s</command></action></item>\n",
                   premark, govs->governor,
                   cpu, govs->governor);
        }
        printf("</menu>\n");
        cpufreq_put_available_governors(govs);
    }
    else
        printf("<item label='%s'/>\n", "no available governors");
    printf(SEPARATOR);

    // print available freqs
    freqs = cpufreq_get_available_frequencies(cpu);
    if (freqs)
    {
        for (i = 0; freqs; freqs = freqs->next, i++)
        {
            freq = freqs->frequency;
            get_human_speed(str, freq);
            premark[0] = ' ';
            premark[1] = '\0';
            if (freq == curfreq)
                premark[0] = '*';

            postmark[0] = '\0';
            if (policy)
            {
                if (freq == policy->max && freq == policy->min)
                    strcpy(postmark, " (max,min)");
                else if (freq == policy->max)
                    strcpy(postmark,  " (max)");
                else if (freq == policy->min)
                    strcpy(postmark, " (min)");
            }

            printf("<menu label='%s%s%s' id='obcpufreq-freq%d'>\n"
                   "  <item label='set as max'><action name='Execute'><command>"
                       CPUFREQ_SET " --cpu %u --max %lu</command></action></item>\n"
                   "  <item label='set as min'><action name='Execute'><command>"
                       CPUFREQ_SET " --cpu %u --min %lu</command></action></item>\n</menu>\n",
                   premark, str, postmark, i,
                   cpu, freqs->frequency,
                   cpu, freqs->frequency);
        }
        cpufreq_put_available_frequencies(freqs);
    }
    else
        printf("<item label='%s'/>\n", "no available freqs");

    cpufreq_put_policy(policy);
    return;
}