| Message ID | 20230605151133.2615-1-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Enable amd-pstate active mode by default | expand |
[AMD Official Use Only - General] Hi Mario, Raphael, > -----Original Message----- > From: Limonciello, Mario <Mario.Limonciello@amd.com> > Sent: Monday, June 5, 2023 11:11 PM > To: Huang, Ray <Ray.Huang@amd.com>; Srinivas Pandruvada > <srinivas.pandruvada@linux.intel.com> > Cc: Rafael J . Wysocki <rafael@kernel.org>; Len Brown <lenb@kernel.org>; > Viresh Kumar <viresh.kumar@linaro.org>; Robert Moore > <robert.moore@intel.com>; linux-acpi@vger.kernel.org; linux- > kernel@vger.kernel.org; linux-pm@vger.kernel.org; devel@acpica.org; Shenoy, > Gautham Ranjal <gautham.shenoy@amd.com>; Karny, Wyes > <Wyes.Karny@amd.com>; Yuan, Perry <Perry.Yuan@amd.com>; Limonciello, > Mario <Mario.Limonciello@amd.com> > Subject: [PATCH 0/4] Enable amd-pstate active mode by default > > 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. > > 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 | 17 +------- > include/acpi/actbl.h | 3 +- > include/acpi/processor.h | 10 +++++ > include/linux/amd-pstate.h | 4 +- > 7 files changed, 121 insertions(+), 44 deletions(-) > > -- > 2.34.1 The series is tested with commit 7736c431466abb54a2679dc257f739fddfa84295 (linux-pm/bleeding-edge) Default option will enable EPP mode without any parameters added to kernel command line, If user adds "amd_pstate=passive" to kernel command line, they still can choose other modes to use. Based the testing result. Tested-by: Yuan Perry <Perry.Yuan@amd.com> Perry.
[AMD Official Use Only - General] Hi Mario, Rafael, > -----Original Message----- > From: Limonciello, Mario <Mario.Limonciello@amd.com> > Sent: Monday, June 5, 2023 11:11 PM > To: Huang, Ray <Ray.Huang@amd.com>; Srinivas Pandruvada > <srinivas.pandruvada@linux.intel.com> > Cc: Rafael J . Wysocki <rafael@kernel.org>; Len Brown <lenb@kernel.org>; > Viresh Kumar <viresh.kumar@linaro.org>; Robert Moore > <robert.moore@intel.com>; linux-acpi@vger.kernel.org; linux- > kernel@vger.kernel.org; linux-pm@vger.kernel.org; devel@acpica.org; Shenoy, > Gautham Ranjal <gautham.shenoy@amd.com>; Karny, Wyes > <Wyes.Karny@amd.com>; Yuan, Perry <Perry.Yuan@amd.com>; Limonciello, > Mario <Mario.Limonciello@amd.com> > Subject: [PATCH 0/4] Enable amd-pstate active mode by default > > 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. > > 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 | 17 +------- > include/acpi/actbl.h | 3 +- > include/acpi/processor.h | 10 +++++ > include/linux/amd-pstate.h | 4 +- > 7 files changed, 121 insertions(+), 44 deletions(-) > > -- > 2.34.1 Sorry for the typo, send again. The series is tested with commit 7736c431466abb54a2679dc257f739fddfa84295 (linux-pm/bleeding-edge) Default option will enable EPP mode without any parameters added to kernel command line, If user adds "amd_pstate=passive" to kernel command line, they still can choose other modes to use. Based the testing result. Tested-by: Yuan Perry <Perry.Yuan@amd.com> Perry.