linux-kernel - [PATCH v2 0/4] Enable amd-pstate active mode by default

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Message-ID: <20230615062953.4028965-1-perry.yuan@amd.com>
Date:   Thu, 15 Jun 2023 02:29:53 -0400
From:   Perry Yuan <perry.yuan@....com>
To:     <rafael.j.wysocki@...el.com>, <viresh.kumar@...aro.org>,
        <Ray.Huang@....com>, <Mario.Limonciello@....com>
CC:     <Deepak.Sharma@....com>, <Wyes.Karny@....com>,
        <gautham.shenoy@....com>, <Sunpeng.Li@....com>,
        <Xinmei.Huang@....com>, <Xiaojian.Du@....com>, <Li.Meng@....com>,
        <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 0/4] Enable amd-pstate active mode by default

From: Perry Yuan <Perry.Yuan@....com>

Active mode for amd-pstate has shown enough success now that it makes sense
to enable it by default on client systems.

This series introduces a new kernel configuration option to set the default
policy for amd-pstate modes for a kernel.

Server systems will by identified by the PM preferred profile and still be
set as disabled by default for now.

changes from v1:
 * fix the 0-DAY CI Kernel build error for acpi_pm_profile_server()
   function, add CONFIG_ACPI check.

Mario Limonciello (4):
  ACPI: CPPC: Add a symbol to check if the preferred profile is a server
  cpufreq: amd-pstate: Set a fallback policy based on preferred_profile
  cpufreq: amd-pstate: Add a kernel config option to set default mode
  cpufreq: intel_pstate: Use the acpi_pm_profile_server() symbol

 drivers/acpi/cppc_acpi.c       | 34 +++++++++++++++
 drivers/cpufreq/Kconfig.x86    | 17 ++++++++
 drivers/cpufreq/amd-pstate.c   | 80 ++++++++++++++++++++++------------
 drivers/cpufreq/intel_pstate.c | 19 ++------
 include/acpi/actbl.h           |  3 +-
 include/acpi/processor.h       | 10 +++++
 include/linux/amd-pstate.h     |  4 +-
 7 files changed, 123 insertions(+), 44 deletions(-)

-- 
2.34.1