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e446556173
Currently the dtpm supports the CPUs via cpufreq and the energy model. This change provides the same for the device which supports devfreq. Each device supporting devfreq and having an energy model can be added to the hierarchy. The concept is the same as the cpufreq DTPM support: the QoS is used to aggregate the requests and the energy model gives the value of the instantaneous power consumption ponderated by the load of the device. Cc: Chanwoo Choi <cwchoi00@gmail.com> Cc: Lukasz Luba <lukasz.luba@arm.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20220128163537.212248-5-daniel.lezcano@linaro.org
67 lines
2.1 KiB
Text
67 lines
2.1 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Generic power capping sysfs interface configuration
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#
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menuconfig POWERCAP
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bool "Generic powercap sysfs driver"
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help
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The power capping sysfs interface allows kernel subsystems to expose power
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capping settings to user space in a consistent way. Usually, it consists
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of multiple control types that determine which settings may be exposed and
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power zones representing parts of the system that can be subject to power
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capping.
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If you want this code to be compiled in, say Y here.
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if POWERCAP
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# Client driver configurations go here.
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config INTEL_RAPL_CORE
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tristate
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config INTEL_RAPL
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tristate "Intel RAPL Support via MSR Interface"
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depends on X86 && IOSF_MBI
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select INTEL_RAPL_CORE
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help
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This enables support for the Intel Running Average Power Limit (RAPL)
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technology via MSR interface, which allows power limits to be enforced
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and monitored on modern Intel processors (Sandy Bridge and later).
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In RAPL, the platform level settings are divided into domains for
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fine grained control. These domains include processor package, DRAM
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controller, CPU core (Power Plane 0), graphics uncore (Power Plane
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1), etc.
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config IDLE_INJECT
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bool "Idle injection framework"
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depends on CPU_IDLE
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default n
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help
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This enables support for the idle injection framework. It
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provides a way to force idle periods on a set of specified
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CPUs for power capping. Idle period can be injected
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synchronously on a set of specified CPUs or alternatively
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on a per CPU basis.
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config DTPM
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bool "Power capping for Dynamic Thermal Power Management (EXPERIMENTAL)"
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depends on OF
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help
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This enables support for the power capping for the dynamic
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thermal power management userspace engine.
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config DTPM_CPU
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bool "Add CPU power capping based on the energy model"
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depends on DTPM && ENERGY_MODEL
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help
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This enables support for CPU power limitation based on
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energy model.
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config DTPM_DEVFREQ
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bool "Add device power capping based on the energy model"
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depends on DTPM && ENERGY_MODEL
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help
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This enables support for device power limitation based on
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energy model.
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endif
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