#include <linux/init.h>
#include <linux/cpufreq.h>
+#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "freq-table", msg)
+
/*********************************************************************
* FREQUENCY TABLE HELPERS *
*********************************************************************/
for (i=0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
unsigned int freq = table[i].frequency;
- if (freq == CPUFREQ_ENTRY_INVALID)
+ if (freq == CPUFREQ_ENTRY_INVALID) {
+ dprintk("table entry %u is invalid, skipping\n", i);
+
continue;
+ }
+ dprintk("table entry %u: %u kHz, %u index\n", i, freq, table[i].index);
if (freq < min_freq)
min_freq = freq;
if (freq > max_freq)
unsigned int i = 0;
unsigned int count = 0;
+ dprintk("request for verification of policy (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu);
+
if (!cpu_online(policy->cpu))
return -EINVAL;
policy->cpuinfo.min_freq,
policy->cpuinfo.max_freq);
+ dprintk("verification lead to (%u - %u kHz) for cpu %u\n", policy->min, policy->max, policy->cpu);
+
return 0;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
struct cpufreq_frequency_table suboptimal = { .index = ~0, };
unsigned int i;
+ dprintk("request for target %u kHz (relation: %u) for cpu %u\n", target_freq, relation, policy->cpu);
+
switch (relation) {
case CPUFREQ_RELATION_H:
optimal.frequency = 0;
*index = suboptimal.index;
} else
*index = optimal.index;
-
+
+ dprintk("target is %u (%u kHz, %u)\n", *index, table[*index].frequency,
+ table[*index].index);
+
return 0;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_target);
}
struct freq_attr cpufreq_freq_attr_scaling_available_freqs = {
- .attr = { .name = "scaling_available_frequencies", .mode = 0444 },
+ .attr = { .name = "scaling_available_frequencies", .mode = 0444, .owner=THIS_MODULE },
.show = show_available_freqs,
};
EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
unsigned int cpu)
{
+ dprintk("setting show_table for cpu %u to %p\n", cpu, table);
show_table[cpu] = table;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_attr);
void cpufreq_frequency_table_put_attr(unsigned int cpu)
{
+ dprintk("clearing show_table for cpu %u\n", cpu);
show_table[cpu] = NULL;
}
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
+struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu)
+{
+ return show_table[cpu];
+}
+EXPORT_SYMBOL_GPL(cpufreq_frequency_get_table);
MODULE_AUTHOR ("Dominik Brodowski <linux@brodo.de>");
MODULE_DESCRIPTION ("CPUfreq frequency table helpers");