From: Huaisheng HS1 Ye <yehs1@lenovo.com>
To: "srinivas.pandruvada@linux.intel.com"
<srinivas.pandruvada@linux.intel.com>
Cc: "lenb@kernel.org" <lenb@kernel.org>,
"rjw@rjwysocki.net" <rjw@rjwysocki.net>,
"viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Huaisheng HS1 Ye <yehs1@lenovo.com>
Subject: [PATCH] cpufreq: intel_pstate: Fix cpuinfo_cur_freq after performance governor changes
Date: Mon, 24 Jul 2017 05:43:14 +0000 [thread overview]
Message-ID: <1500875013-123321-1-git-send-email-yehs1@lenovo.com> (raw)
After commit 82b4e03e01bc (intel_pstate: skip scheduler hook when
in "performance" mode) Software P-state control modes couldn't get
dynamic value during performance mode, and it still in last value from
powersave mode, so clear its value to get same behavior as Hardware
P-state to avoid confusion.
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
---
drivers/cpufreq/intel_pstate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 6cd5035..c675626 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2050,6 +2050,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
*/
intel_pstate_clear_update_util_hook(policy->cpu);
intel_pstate_max_within_limits(cpu);
+ cpu->sample.core_avg_perf = 0;
} else {
intel_pstate_set_update_util_hook(policy->cpu);
}
--
1.8.3.1
next reply other threads:[~2017-07-24 5:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-24 5:43 Huaisheng HS1 Ye [this message]
2017-07-24 11:36 ` [PATCH] cpufreq: intel_pstate: Fix cpuinfo_cur_freq after performance governor changes Rafael J. Wysocki
2017-07-24 15:32 ` Huaisheng HS1 Ye
2017-07-24 23:51 ` Rafael J. Wysocki
2017-07-25 1:46 ` Huaisheng HS1 Ye
2017-07-25 2:57 ` Srinivas Pandruvada
2017-07-25 7:03 ` Huaisheng HS1 Ye
2017-07-25 14:37 ` Srinivas Pandruvada
2017-07-25 15:22 ` Huaisheng HS1 Ye
2017-07-25 21:46 ` Rafael J. Wysocki
2017-07-25 15:35 ` Rafael J. Wysocki
2017-07-25 22:42 ` [PATCH] cpufreq: intel_pstate: Drop ->get from intel_pstate structure Rafael J. Wysocki
2017-07-27 3:47 ` Viresh Kumar
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