From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Wed, 22 Mar 2017 22:53:54 +0000 (+0100)
Subject: cpufreq: intel_pstate: Use load-based P-state selection more widely
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=553953453b4b64fbccba31691257d006cee36613;p=openwrt%2Fstaging%2Fblogic.git

cpufreq: intel_pstate: Use load-based P-state selection more widely

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>
---

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 87725e2ac3ac..2ef02fd568a6 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2469,9 +2469,15 @@ static void __init copy_pid_params(struct pstate_adjust_policy *policy)
 #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)