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
[AMD Official Use Only - General]
Hi Mario, Raphael,
> -----Original Message-----
> From: Limonciello, Mario <[email protected]>
> Sent: Monday, June 5, 2023 11:11 PM
> To: Huang, Ray <[email protected]>; Srinivas Pandruvada
> <[email protected]>
> Cc: Rafael J . Wysocki <[email protected]>; Len Brown <[email protected]>;
> Viresh Kumar <[email protected]>; Robert Moore
> <[email protected]>; [email protected]; linux-
> [email protected]; [email protected]; [email protected]; Shenoy,
> Gautham Ranjal <[email protected]>; Karny, Wyes
> <[email protected]>; Yuan, Perry <[email protected]>; Limonciello,
> Mario <[email protected]>
> 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 <[email protected]>
Perry.
[AMD Official Use Only - General]
Hi Mario, Rafael,
> -----Original Message-----
> From: Limonciello, Mario <[email protected]>
> Sent: Monday, June 5, 2023 11:11 PM
> To: Huang, Ray <[email protected]>; Srinivas Pandruvada
> <[email protected]>
> Cc: Rafael J . Wysocki <[email protected]>; Len Brown <[email protected]>;
> Viresh Kumar <[email protected]>; Robert Moore
> <[email protected]>; [email protected]; linux-
> [email protected]; [email protected]; [email protected]; Shenoy,
> Gautham Ranjal <[email protected]>; Karny, Wyes
> <[email protected]>; Yuan, Perry <[email protected]>; Limonciello,
> Mario <[email protected]>
> 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 <[email protected]>
Perry.