From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 5 Jun 2018 14:42:42 -0700
Subject: cpufreq: intel_pstate: enable boost for Skylake Xeon
Patch-mainline: v4.18-rc1
Git-commit: 41ab43c9c89e06ff08a4750d1b09e227ea97894f
References: bsc#1066110

Enable HWP boost on Skylake server and workstations.

Reported-by: Mel Gorman <mgorman@techsingularity.net>
Tested-by: Giovanni Gherdovich <ggherdovich@suse.cz>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Giovanni Gherdovich <ggherdovich@suse.cz>
---
 drivers/cpufreq/intel_pstate.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2066,6 +2066,12 @@ static const struct x86_cpu_id intel_pst
 
 static bool pid_in_use(void);
 
+static const struct x86_cpu_id intel_pstate_hwp_boost_ids[] = {
+	ICPU(INTEL_FAM6_SKYLAKE_X, core_funcs),
+	ICPU(INTEL_FAM6_SKYLAKE_DESKTOP, core_funcs),
+	{}
+};
+
 static int intel_pstate_init_cpu(unsigned int cpunum)
 {
 	struct cpudata *cpu;
@@ -2096,6 +2102,10 @@ static int intel_pstate_init_cpu(unsigne
 			intel_pstate_disable_ee(cpunum);
 
 		intel_pstate_hwp_enable(cpu);
+
+		id = x86_match_cpu(intel_pstate_hwp_boost_ids);
+		if (id)
+			hwp_boost = true;
 	} else if (pid_in_use()) {
 		intel_pstate_pid_reset(cpu);
 	}