From: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
In the HWP enabled case pid_params.sample_rate_ns only needs to be
updated once, because it is global, so do that when setting hwp_active
instead of doing it during the initialization of every CPU.
Moreover, pid_params.sample_rate_ms is never used if HWP is enabled,
so do not update it at all then.
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
---
drivers/cpufreq/intel_pstate.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
Index: linux-pm/drivers/cpufreq/intel_pstate.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/intel_pstate.c
+++ linux-pm/drivers/cpufreq/intel_pstate.c
@@ -1911,8 +1911,6 @@ static int intel_pstate_init_cpu(unsigne
intel_pstate_disable_ee(cpunum);
intel_pstate_hwp_enable(cpu);
- pid_params.sample_rate_ms = 50;
- pid_params.sample_rate_ns = 50 * NSEC_PER_MSEC;
}
intel_pstate_get_cpu_pstates(cpu);
@@ -2563,6 +2561,7 @@ static int __init intel_pstate_init(void
} else {
hwp_active++;
intel_pstate.attr = hwp_cpufreq_attrs;
+ pid_params.sample_rate_ns = 50 * NSEC_PER_MSEC;
goto hwp_cpu_matched;
}
} else {
