spin_lock_init(&gpstates->gpstate_lock);
ret = cpufreq_table_validate_and_show(policy, powernv_freqs);
- if (ret < 0)
+ if (ret < 0) {
kfree(policy->driver_data);
+ return ret;
+ }
+ policy->fast_switch_possible = true;
return ret;
}
del_timer_sync(&gpstates->timer);
}
+static unsigned int powernv_fast_switch(struct cpufreq_policy *policy,
+ unsigned int target_freq)
+{
+ int index;
+ struct powernv_smp_call_data freq_data;
+
+ index = cpufreq_table_find_index_dl(policy, target_freq);
+ freq_data.pstate_id = powernv_freqs[index].driver_data;
+ freq_data.gpstate_id = powernv_freqs[index].driver_data;
+ set_pstate(&freq_data);
+
+ return powernv_freqs[index].frequency;
+}
+
static struct cpufreq_driver powernv_cpufreq_driver = {
.name = "powernv-cpufreq",
.flags = CPUFREQ_CONST_LOOPS,
.exit = powernv_cpufreq_cpu_exit,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = powernv_cpufreq_target_index,
+ .fast_switch = powernv_fast_switch,
.get = powernv_cpufreq_get,
.stop_cpu = powernv_cpufreq_stop_cpu,
.attr = powernv_cpu_freq_attr,