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[PATCH 2/5] cpufreq: intel_pstate: Use load-based P-state selection more widely

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  [PATCH 2/5] cpufreq: intel_pstate: Use load-based P-state selection more widely "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-03-23 00:50 +0100

#1607069 — [PATCH 2/5] cpufreq: intel_pstate: Use load-based P-state selection more widely

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Extend the set of systems for which intel_pstate will use the
"powersave" P-state selection algorithm based on CPU load in the
active mode by systems with ACPI preferred profile set to "tablet",
"appliance PC", "desktop", or "workstation" (ie. everything with a
specified preferred profile that is not a "server").

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Index: linux-pm/drivers/cpufreq/intel_pstate.c
===================================================================
--- linux-pm.orig/drivers/cpufreq/intel_pstate.c
+++ linux-pm/drivers/cpufreq/intel_pstate.c
@@ -2469,9 +2469,15 @@ static void __init copy_pid_params(struc
 #ifdef CONFIG_ACPI
 static void intel_pstate_use_acpi_profile(void)
 {
-	if (acpi_gbl_FADT.preferred_profile == PM_MOBILE)
+	switch (acpi_gbl_FADT.preferred_profile) {
+	case PM_MOBILE:
+	case PM_TABLET:
+	case PM_APPLIANCE_PC:
+	case PM_DESKTOP:
+	case PM_WORKSTATION:
 		pstate_funcs.get_target_pstate =
 				get_target_pstate_use_cpu_load;
+	}
 }
 #else
 static void intel_pstate_use_acpi_profile(void)

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