From e0eb459df7b25c6dc0dbca9a5c80000bf025472a Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 26 Oct 2021 16:32:42 +0800
Subject: [PATCH] cpufreq: intel_pstate: Fix cpu->pstate.turbo_freq initialization
Git-commit: c72bcf0ab87a92634e58af62e89af0f40dfd0b88
Patch-mainline: v5.16-rc1
References: stable-5.14.19

[ Upstream commit c72bcf0ab87a92634e58af62e89af0f40dfd0b88 ]

Fix a problem in active mode that cpu->pstate.turbo_freq is initialized
only if HWP-to-frequency scaling factor is refined.

In passive mode, this problem is not exposed, because
cpu->pstate.turbo_freq is set again, later in
intel_cpufreq_cpu_init()->intel_pstate_get_hwp_cap().

Fixes: eb3693f0521e ("cpufreq: intel_pstate: hybrid: CPU-specific scaling factor")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/cpufreq/intel_pstate.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index e7cd3882bda4..2789cad7403d 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -615,9 +615,8 @@ static void intel_pstate_hybrid_hwp_calibrate(struct cpudata *cpu)
 	 * the scaling factor is too high, so recompute it so that the HWP_CAP
 	 * highest performance corresponds to the maximum turbo frequency.
 	 */
-	if (turbo_freq < cpu->pstate.turbo_pstate * scaling) {
-		pr_debug("CPU%d: scaling too high (%d)\n", cpu->cpu, scaling);
-
+	cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling;
+	if (turbo_freq < cpu->pstate.turbo_freq) {
 		cpu->pstate.turbo_freq = turbo_freq;
 		scaling = DIV_ROUND_UP(turbo_freq, cpu->pstate.turbo_pstate);
 	}
-- 
2.26.2