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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.c21
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index cd83d477e32d..e85677653ef8 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -286,7 +286,7 @@ static inline void update_turbo_state(void)
cpu->pstate.max_pstate == cpu->pstate.turbo_pstate);
}
-static void intel_pstate_hwp_set(void)
+static void intel_pstate_hwp_set(const struct cpumask *cpumask)
{
int min, hw_min, max, hw_max, cpu, range, adj_range;
u64 value, cap;
@@ -296,9 +296,7 @@ static void intel_pstate_hwp_set(void)
hw_max = HWP_HIGHEST_PERF(cap);
range = hw_max - hw_min;
- get_online_cpus();
-
- for_each_online_cpu(cpu) {
+ for_each_cpu(cpu, cpumask) {
rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value);
adj_range = limits->min_perf_pct * range / 100;
min = hw_min + adj_range;
@@ -317,7 +315,12 @@ static void intel_pstate_hwp_set(void)
value |= HWP_MAX_PERF(max);
wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value);
}
+}
+static void intel_pstate_hwp_set_online_cpus(void)
+{
+ get_online_cpus();
+ intel_pstate_hwp_set(cpu_online_mask);
put_online_cpus();
}
@@ -439,7 +442,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b,
limits->no_turbo = clamp_t(int, input, 0, 1);
if (hwp_active)
- intel_pstate_hwp_set();
+ intel_pstate_hwp_set_online_cpus();
return count;
}
@@ -465,7 +468,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
int_tofp(100));
if (hwp_active)
- intel_pstate_hwp_set();
+ intel_pstate_hwp_set_online_cpus();
return count;
}
@@ -490,7 +493,7 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
int_tofp(100));
if (hwp_active)
- intel_pstate_hwp_set();
+ intel_pstate_hwp_set_online_cpus();
return count;
}
@@ -1141,7 +1144,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
pr_debug("intel_pstate: set performance\n");
limits = &performance_limits;
if (hwp_active)
- intel_pstate_hwp_set();
+ intel_pstate_hwp_set(policy->cpus);
return 0;
}
@@ -1173,7 +1176,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
int_tofp(100));
if (hwp_active)
- intel_pstate_hwp_set();
+ intel_pstate_hwp_set(policy->cpus);
return 0;
}