From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Giovanni Gherdovich <ggherdovich@suse.cz>,
Doug Smythies <dsmythies@telus.net>
Subject: [PATCH 1/2] cpufreq: intel_pstate: Select schedutil as the default governor
Date: Sat, 28 Mar 2020 13:57:06 +0100 [thread overview]
Message-ID: <2084178.yfvgZJeXvx@kreacher> (raw)
In-Reply-To: <2016232.ihCVsphvri@kreacher>
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Modify cpufreq Kconfig to select schedutil as the default governor
if the intel_pstate driver has been selected and SMP support is
enabled (because schedutil depends on SMP).
Also select schedutil as well as the performance governor from the
intel_pstate Kconfig section to ensure the equivalence of the passive
and active mode governor configuration options.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/cpufreq/Kconfig | 3 ++-
drivers/cpufreq/Kconfig.x86 | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index bff5295016ae..9f0e7e79ed14 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -37,10 +37,11 @@ config CPU_FREQ_STAT
choice
prompt "Default CPUFreq governor"
default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ
+ default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if X86_INTEL_PSTATE && SMP
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
help
This option sets which CPUFreq governor shall be loaded at
- startup. If in doubt, select 'performance'.
+ startup. If in doubt, use the default setting.
config CPU_FREQ_DEFAULT_GOV_PERFORMANCE
bool "performance"
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index a6528388952e..758c69a2e1bf 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -8,6 +8,8 @@ config X86_INTEL_PSTATE
depends on X86
select ACPI_PROCESSOR if ACPI
select ACPI_CPPC_LIB if X86_64 && ACPI && SCHED_MC_PRIO
+ select CPU_FREQ_GOV_PERFORMANCE
+ select CPU_FREQ_GOV_SCHEDUTIL if SMP
help
This driver provides a P state for Intel core processors.
The driver implements an internal governor and will become
--
2.16.4
next prev parent reply other threads:[~2020-03-28 12:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-28 12:54 [PATCH 0/2] cpufreq: intel_pstate: Run in the passive mode by default on systems without HWP Rafael J. Wysocki
2020-03-28 12:57 ` Rafael J. Wysocki [this message]
2020-03-28 12:57 ` [PATCH 2/2] cpufreq: intel_pstate: Use passive mode by default " Rafael J. Wysocki
2020-07-09 21:01 ` Doug Smythies
2020-07-13 12:16 ` Rafael J. Wysocki
2020-04-07 15:35 ` [PATCH 0/2] cpufreq: intel_pstate: Run in the passive mode by default on systems " Giovanni Gherdovich
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