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path: root/drivers/cpufreq/intel_pstate.c
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Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
-rw-r--r--drivers/cpufreq/intel_pstate.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index f1d6de05bcab..02f9e494e86e 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1153,18 +1153,32 @@ static void intel_pstate_update_policies(void)
static void __intel_pstate_update_max_freq(struct cpudata *cpudata,
struct cpufreq_policy *policy)
{
+ intel_pstate_get_hwp_cap(cpudata);
+
policy->cpuinfo.max_freq = READ_ONCE(global.no_turbo) ?
cpudata->pstate.max_freq : cpudata->pstate.turbo_freq;
+
refresh_frequency_limits(policy);
}
static void intel_pstate_update_limits(unsigned int cpu)
{
- mutex_lock(&intel_pstate_driver_lock);
+ struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu);
- cpufreq_update_policy(cpu);
+ if (!policy)
+ return;
- mutex_unlock(&intel_pstate_driver_lock);
+ __intel_pstate_update_max_freq(all_cpu_data[cpu], policy);
+
+ cpufreq_cpu_release(policy);
+}
+
+static void intel_pstate_update_limits_for_all(void)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ intel_pstate_update_limits(cpu);
}
/************************** sysfs begin ************************/
@@ -1311,7 +1325,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b,
mutex_unlock(&intel_pstate_limits_lock);
- intel_pstate_update_policies();
+ intel_pstate_update_limits_for_all();
arch_set_max_freq_ratio(no_turbo);
unlock_driver:
@@ -1595,7 +1609,6 @@ static void intel_pstate_notify_work(struct work_struct *work)
struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpudata->cpu);
if (policy) {
- intel_pstate_get_hwp_cap(cpudata);
__intel_pstate_update_max_freq(cpudata, policy);
cpufreq_cpu_release(policy);