mirror of
https://github.com/torvalds/linux.git
synced 2024-11-23 20:51:44 +00:00
2504ba8b01
- Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
Karny, Arnd Bergmann, Bagas Sanjaya).
- Drop the custom cpufreq driver for loongson1 that is not necessary
any more and the corresponding cpufreq platform device (Keguang
Zhang).
- Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
entries (Paul E. McKenney).
- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi).
- Make kobj_type structure in the cpufreq core constant (Thomas
Weißschuh).
- Make cpufreq_unregister_driver() return void (Uwe Kleine-König).
- Make the TEO cpuidle governor check CPU utilization in order to refine
idle state selection (Kajetan Puchalski).
- Make Kconfig select the haltpoll cpuidle governor when the haltpoll
cpuidle driver is selected and replace a default_idle() call in that
driver with arch_cpu_idle() to allow MWAIT to be used (Li RongQing).
- Add Emerald Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy).
- Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
avoid randconfig build failures (Arnd Bergmann).
- Make kobj_type structures used in the cpuidle sysfs interface
constant (Thomas Weißschuh).
- Make the cpuidle driver registration code update microsecond values
of idle state parameters in accordance with their nanosecond values
if they are provided (Rafael Wysocki).
- Make the PSCI cpuidle driver prevent topology CPUs from being
suspended on PREEMPT_RT (Krzysztof Kozlowski).
- Document that pm_runtime_force_suspend() cannot be used with
DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald).
- Add EXPORT macros for exporting PM functions from drivers (Richard
Fitzgerald).
- Remove /** from non-kernel-doc comments in hibernation code (Randy
Dunlap).
- Fix possible name leak in powercap_register_zone() (Yang Yingliang).
- Add Meteor Lake and Emerald Rapids support to the intel_rapl power
capping driver (Zhang Rui).
- Modify the idle_inject power capping facility to support 100% idle
injection (Srinivas Pandruvada).
- Fix large time windows handling in the intel_rapl power capping
driver (Zhang Rui).
- Fix memory leaks with using debugfs_lookup() in the generic PM
domains and Energy Model code (Greg Kroah-Hartman).
- Add missing 'cache-unified' property in the example for kryo OPP
bindings (Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio).
- Modify some power management utilities to use the canonical ftrace
path (Ross Zwisler).
- Correct spelling problems for Documentation/power/ as reported by
codespell (Randy Dunlap).
-----BEGIN PGP SIGNATURE-----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=lZLx
-----END PGP SIGNATURE-----
Merge tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add EPP support to the AMD P-state cpufreq driver, add support
for new platforms to the Intel RAPL power capping driver, intel_idle
and the Qualcomm cpufreq driver, enable thermal cooling for Tegra194,
drop the custom cpufreq driver for loongson1 that is not necessary any
more (and the corresponding cpufreq platform device), fix assorted
issues and clean up code.
Specifics:
- Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
Karny, Arnd Bergmann, Bagas Sanjaya)
- Drop the custom cpufreq driver for loongson1 that is not necessary
any more and the corresponding cpufreq platform device (Keguang
Zhang)
- Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
entries (Paul E. McKenney)
- Enable thermal cooling for Tegra194 (Yi-Wei Wang)
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss)
- Various dt binding updates for qcom-cpufreq-nvmem and
opp-v2-kryo-cpu (Christian Marangi)
- Make kobj_type structure in the cpufreq core constant (Thomas
Weißschuh)
- Make cpufreq_unregister_driver() return void (Uwe Kleine-König)
- Make the TEO cpuidle governor check CPU utilization in order to
refine idle state selection (Kajetan Puchalski)
- Make Kconfig select the haltpoll cpuidle governor when the haltpoll
cpuidle driver is selected and replace a default_idle() call in
that driver with arch_cpu_idle() to allow MWAIT to be used (Li
RongQing)
- Add Emerald Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy)
- Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
avoid randconfig build failures (Arnd Bergmann)
- Make kobj_type structures used in the cpuidle sysfs interface
constant (Thomas Weißschuh)
- Make the cpuidle driver registration code update microsecond values
of idle state parameters in accordance with their nanosecond values
if they are provided (Rafael Wysocki)
- Make the PSCI cpuidle driver prevent topology CPUs from being
suspended on PREEMPT_RT (Krzysztof Kozlowski)
- Document that pm_runtime_force_suspend() cannot be used with
DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald)
- Add EXPORT macros for exporting PM functions from drivers (Richard
Fitzgerald)
- Remove /** from non-kernel-doc comments in hibernation code (Randy
Dunlap)
- Fix possible name leak in powercap_register_zone() (Yang Yingliang)
- Add Meteor Lake and Emerald Rapids support to the intel_rapl power
capping driver (Zhang Rui)
- Modify the idle_inject power capping facility to support 100% idle
injection (Srinivas Pandruvada)
- Fix large time windows handling in the intel_rapl power capping
driver (Zhang Rui)
- Fix memory leaks with using debugfs_lookup() in the generic PM
domains and Energy Model code (Greg Kroah-Hartman)
- Add missing 'cache-unified' property in the example for kryo OPP
bindings (Rob Herring)
- Fix error checking in opp_migrate_dentry() (Qi Zheng)
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio)
- Modify some power management utilities to use the canonical ftrace
path (Ross Zwisler)
- Correct spelling problems for Documentation/power/ as reported by
codespell (Randy Dunlap)"
* tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
Documentation: amd-pstate: disambiguate user space sections
cpufreq: amd-pstate: Fix invalid write to MSR_AMD_CPPC_REQ
dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
PM: Add EXPORT macros for exporting PM functions
cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
MIPS: loongson32: Drop obsolete cpufreq platform device
powercap: intel_rapl: Fix handling for large time window
cpuidle: driver: Update microsecond values of state parameters as needed
cpuidle: sysfs: make kobj_type structures constant
cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies
PM: EM: fix memory leak with using debugfs_lookup()
PM: domains: fix memory leak with using debugfs_lookup()
cpufreq: Make kobj_type structure constant
cpufreq: davinci: Fix clk use after free
cpufreq: amd-pstate: avoid uninitialized variable use
cpufreq: Make cpufreq_unregister_driver() return void
OPP: fix error checking in opp_migrate_dentry()
dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
...
316 lines
9.4 KiB
Plaintext
316 lines
9.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
menu "CPU Frequency scaling"
|
|
|
|
config CPU_FREQ
|
|
bool "CPU Frequency scaling"
|
|
help
|
|
CPU Frequency scaling allows you to change the clock speed of
|
|
CPUs on the fly. This is a nice method to save power, because
|
|
the lower the CPU clock speed, the less power the CPU consumes.
|
|
|
|
Note that this driver doesn't automatically change the CPU
|
|
clock speed, you need to either enable a dynamic cpufreq governor
|
|
(see below) after boot, or use a userspace tool.
|
|
|
|
For details, take a look at
|
|
<file:Documentation/admin-guide/pm/cpufreq.rst>.
|
|
|
|
If in doubt, say N.
|
|
|
|
if CPU_FREQ
|
|
|
|
config CPU_FREQ_GOV_ATTR_SET
|
|
bool
|
|
|
|
config CPU_FREQ_GOV_COMMON
|
|
select CPU_FREQ_GOV_ATTR_SET
|
|
select IRQ_WORK
|
|
bool
|
|
|
|
config CPU_FREQ_STAT
|
|
bool "CPU frequency transition statistics"
|
|
help
|
|
Export CPU frequency statistics information through sysfs.
|
|
|
|
If in doubt, say N.
|
|
|
|
choice
|
|
prompt "Default CPUFreq governor"
|
|
default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1110_CPUFREQ
|
|
default CPU_FREQ_DEFAULT_GOV_SCHEDUTIL if ARM64 || ARM
|
|
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, use the default setting.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_PERFORMANCE
|
|
bool "performance"
|
|
select CPU_FREQ_GOV_PERFORMANCE
|
|
help
|
|
Use the CPUFreq governor 'performance' as default. This sets
|
|
the frequency statically to the highest frequency supported by
|
|
the CPU.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_POWERSAVE
|
|
bool "powersave"
|
|
select CPU_FREQ_GOV_POWERSAVE
|
|
help
|
|
Use the CPUFreq governor 'powersave' as default. This sets
|
|
the frequency statically to the lowest frequency supported by
|
|
the CPU.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_USERSPACE
|
|
bool "userspace"
|
|
select CPU_FREQ_GOV_USERSPACE
|
|
help
|
|
Use the CPUFreq governor 'userspace' as default. This allows
|
|
you to set the CPU frequency manually or when a userspace
|
|
program shall be able to set the CPU dynamically without having
|
|
to enable the userspace governor manually.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_ONDEMAND
|
|
bool "ondemand"
|
|
depends on !(X86_INTEL_PSTATE && SMP)
|
|
select CPU_FREQ_GOV_ONDEMAND
|
|
select CPU_FREQ_GOV_PERFORMANCE
|
|
help
|
|
Use the CPUFreq governor 'ondemand' as default. This allows
|
|
you to get a full dynamic frequency capable system by simply
|
|
loading your cpufreq low-level hardware driver.
|
|
Be aware that not all cpufreq drivers support the ondemand
|
|
governor. If unsure have a look at the help section of the
|
|
driver. Fallback governor will be the performance governor.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
|
|
bool "conservative"
|
|
depends on !(X86_INTEL_PSTATE && SMP)
|
|
select CPU_FREQ_GOV_CONSERVATIVE
|
|
select CPU_FREQ_GOV_PERFORMANCE
|
|
help
|
|
Use the CPUFreq governor 'conservative' as default. This allows
|
|
you to get a full dynamic frequency capable system by simply
|
|
loading your cpufreq low-level hardware driver.
|
|
Be aware that not all cpufreq drivers support the conservative
|
|
governor. If unsure have a look at the help section of the
|
|
driver. Fallback governor will be the performance governor.
|
|
|
|
config CPU_FREQ_DEFAULT_GOV_SCHEDUTIL
|
|
bool "schedutil"
|
|
depends on SMP
|
|
select CPU_FREQ_GOV_SCHEDUTIL
|
|
select CPU_FREQ_GOV_PERFORMANCE
|
|
help
|
|
Use the 'schedutil' CPUFreq governor by default. If unsure,
|
|
have a look at the help section of that governor. The fallback
|
|
governor will be 'performance'.
|
|
|
|
endchoice
|
|
|
|
config CPU_FREQ_GOV_PERFORMANCE
|
|
tristate "'performance' governor"
|
|
help
|
|
This cpufreq governor sets the frequency statically to the
|
|
highest available CPU frequency.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpufreq_performance.
|
|
|
|
If in doubt, say Y.
|
|
|
|
config CPU_FREQ_GOV_POWERSAVE
|
|
tristate "'powersave' governor"
|
|
help
|
|
This cpufreq governor sets the frequency statically to the
|
|
lowest available CPU frequency.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpufreq_powersave.
|
|
|
|
If in doubt, say Y.
|
|
|
|
config CPU_FREQ_GOV_USERSPACE
|
|
tristate "'userspace' governor for userspace frequency scaling"
|
|
help
|
|
Enable this cpufreq governor when you either want to set the
|
|
CPU frequency manually or when a userspace program shall
|
|
be able to set the CPU dynamically, like on LART
|
|
<http://www.lartmaker.nl/>.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpufreq_userspace.
|
|
|
|
If in doubt, say Y.
|
|
|
|
config CPU_FREQ_GOV_ONDEMAND
|
|
tristate "'ondemand' cpufreq policy governor"
|
|
select CPU_FREQ_GOV_COMMON
|
|
help
|
|
'ondemand' - This driver adds a dynamic cpufreq policy governor.
|
|
The governor does a periodic polling and
|
|
changes frequency based on the CPU utilization.
|
|
The support for this governor depends on CPU capability to
|
|
do fast frequency switching (i.e, very low latency frequency
|
|
transitions).
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpufreq_ondemand.
|
|
|
|
For details, take a look at
|
|
<file:Documentation/admin-guide/pm/cpufreq.rst>.
|
|
|
|
If in doubt, say N.
|
|
|
|
config CPU_FREQ_GOV_CONSERVATIVE
|
|
tristate "'conservative' cpufreq governor"
|
|
depends on CPU_FREQ
|
|
select CPU_FREQ_GOV_COMMON
|
|
help
|
|
'conservative' - this driver is rather similar to the 'ondemand'
|
|
governor both in its source code and its purpose, the difference is
|
|
its optimisation for better suitability in a battery powered
|
|
environment. The frequency is gracefully increased and decreased
|
|
rather than jumping to 100% when speed is required.
|
|
|
|
If you have a desktop machine then you should really be considering
|
|
the 'ondemand' governor instead, however if you are using a laptop,
|
|
PDA or even an AMD64 based computer (due to the unacceptable
|
|
step-by-step latency issues between the minimum and maximum frequency
|
|
transitions in the CPU) you will probably want to use this governor.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpufreq_conservative.
|
|
|
|
For details, take a look at
|
|
<file:Documentation/admin-guide/pm/cpufreq.rst>.
|
|
|
|
If in doubt, say N.
|
|
|
|
config CPU_FREQ_GOV_SCHEDUTIL
|
|
bool "'schedutil' cpufreq policy governor"
|
|
depends on CPU_FREQ && SMP
|
|
select CPU_FREQ_GOV_ATTR_SET
|
|
select IRQ_WORK
|
|
help
|
|
This governor makes decisions based on the utilization data provided
|
|
by the scheduler. It sets the CPU frequency to be proportional to
|
|
the utilization/capacity ratio coming from the scheduler. If the
|
|
utilization is frequency-invariant, the new frequency is also
|
|
proportional to the maximum available frequency. If that is not the
|
|
case, it is proportional to the current frequency of the CPU. The
|
|
frequency tipping point is at utilization/capacity equal to 80% in
|
|
both cases.
|
|
|
|
If in doubt, say N.
|
|
|
|
comment "CPU frequency scaling drivers"
|
|
|
|
config CPUFREQ_DT
|
|
tristate "Generic DT based cpufreq driver"
|
|
depends on HAVE_CLK && OF
|
|
select CPUFREQ_DT_PLATDEV
|
|
select PM_OPP
|
|
help
|
|
This adds a generic DT based cpufreq driver for frequency management.
|
|
It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
|
|
systems.
|
|
|
|
If in doubt, say N.
|
|
|
|
config CPUFREQ_DT_PLATDEV
|
|
bool
|
|
help
|
|
This adds a generic DT based cpufreq platdev driver for frequency
|
|
management. This creates a 'cpufreq-dt' platform device, on the
|
|
supported platforms.
|
|
|
|
If in doubt, say N.
|
|
|
|
if X86
|
|
source "drivers/cpufreq/Kconfig.x86"
|
|
endif
|
|
|
|
if ARM || ARM64
|
|
source "drivers/cpufreq/Kconfig.arm"
|
|
endif
|
|
|
|
if PPC32 || PPC64
|
|
source "drivers/cpufreq/Kconfig.powerpc"
|
|
endif
|
|
|
|
if IA64
|
|
config IA64_ACPI_CPUFREQ
|
|
tristate "ACPI Processor P-States driver"
|
|
depends on ACPI_PROCESSOR
|
|
help
|
|
This driver adds a CPUFreq driver which utilizes the ACPI
|
|
Processor Performance States.
|
|
|
|
If in doubt, say N.
|
|
endif
|
|
|
|
if MIPS
|
|
config BMIPS_CPUFREQ
|
|
tristate "BMIPS CPUfreq Driver"
|
|
help
|
|
This option adds a CPUfreq driver for BMIPS processors with
|
|
support for configurable CPU frequency.
|
|
|
|
For now, BMIPS5 chips are supported (such as the Broadcom 7425).
|
|
|
|
If in doubt, say N.
|
|
|
|
config LOONGSON2_CPUFREQ
|
|
tristate "Loongson2 CPUFreq Driver"
|
|
depends on LEMOTE_MACH2F
|
|
help
|
|
This option adds a CPUFreq driver for loongson processors which
|
|
support software configurable cpu frequency.
|
|
|
|
Loongson2F and its successors support this feature.
|
|
|
|
If in doubt, say N.
|
|
endif
|
|
|
|
if SPARC64
|
|
config SPARC_US3_CPUFREQ
|
|
tristate "UltraSPARC-III CPU Frequency driver"
|
|
help
|
|
This adds the CPUFreq driver for UltraSPARC-III processors.
|
|
|
|
If in doubt, say N.
|
|
|
|
config SPARC_US2E_CPUFREQ
|
|
tristate "UltraSPARC-IIe CPU Frequency driver"
|
|
help
|
|
This adds the CPUFreq driver for UltraSPARC-IIe processors.
|
|
|
|
If in doubt, say N.
|
|
endif
|
|
|
|
if SUPERH
|
|
config SH_CPU_FREQ
|
|
tristate "SuperH CPU Frequency driver"
|
|
help
|
|
This adds the cpufreq driver for SuperH. Any CPU that supports
|
|
clock rate rounding through the clock framework can use this
|
|
driver. While it will make the kernel slightly larger, this is
|
|
harmless for CPUs that don't support rate rounding. The driver
|
|
will also generate a notice in the boot log before disabling
|
|
itself if the CPU in question is not capable of rate rounding.
|
|
|
|
If unsure, say N.
|
|
endif
|
|
|
|
config QORIQ_CPUFREQ
|
|
tristate "CPU frequency scaling driver for Freescale QorIQ SoCs"
|
|
depends on OF && COMMON_CLK
|
|
depends on PPC_E500MC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
|
|
select CLK_QORIQ
|
|
help
|
|
This adds the CPUFreq driver support for Freescale QorIQ SoCs
|
|
which are capable of changing the CPU's frequency dynamically.
|
|
|
|
endif
|
|
endmenu
|