1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 275d2364eSSrinivas Pandruvada# 375d2364eSSrinivas Pandruvada# Generic power capping sysfs interface configuration 475d2364eSSrinivas Pandruvada# 575d2364eSSrinivas Pandruvada 675d2364eSSrinivas Pandruvadamenuconfig POWERCAP 775d2364eSSrinivas Pandruvada bool "Generic powercap sysfs driver" 875d2364eSSrinivas Pandruvada help 975d2364eSSrinivas Pandruvada The power capping sysfs interface allows kernel subsystems to expose power 1075d2364eSSrinivas Pandruvada capping settings to user space in a consistent way. Usually, it consists 1175d2364eSSrinivas Pandruvada of multiple control types that determine which settings may be exposed and 1275d2364eSSrinivas Pandruvada power zones representing parts of the system that can be subject to power 1375d2364eSSrinivas Pandruvada capping. 1475d2364eSSrinivas Pandruvada 1575d2364eSSrinivas Pandruvada If you want this code to be compiled in, say Y here. 1675d2364eSSrinivas Pandruvada 1775d2364eSSrinivas Pandruvadaif POWERCAP 1875d2364eSSrinivas Pandruvada# Client driver configurations go here. 193382388dSZhang Ruiconfig INTEL_RAPL_CORE 203382388dSZhang Rui tristate 213382388dSZhang Rui 222d281d81SJacob Panconfig INTEL_RAPL 233382388dSZhang Rui tristate "Intel RAPL Support via MSR Interface" 2424b59841SJacob Pan depends on X86 && IOSF_MBI 253382388dSZhang Rui select INTEL_RAPL_CORE 26a7f7f624SMasahiro Yamada help 272d281d81SJacob Pan This enables support for the Intel Running Average Power Limit (RAPL) 283382388dSZhang Rui technology via MSR interface, which allows power limits to be enforced 293382388dSZhang Rui and monitored on modern Intel processors (Sandy Bridge and later). 302d281d81SJacob Pan 312d281d81SJacob Pan In RAPL, the platform level settings are divided into domains for 322d281d81SJacob Pan fine grained control. These domains include processor package, DRAM 33*f8fee6e6SHubert Jasudowicz controller, CPU core (Power Plane 0), graphics uncore (Power Plane 342d281d81SJacob Pan 1), etc. 3575d2364eSSrinivas Pandruvada 3688763a5cSDaniel Lezcanoconfig IDLE_INJECT 3788763a5cSDaniel Lezcano bool "Idle injection framework" 3888763a5cSDaniel Lezcano depends on CPU_IDLE 3988763a5cSDaniel Lezcano default n 4088763a5cSDaniel Lezcano help 4188763a5cSDaniel Lezcano This enables support for the idle injection framework. It 4288763a5cSDaniel Lezcano provides a way to force idle periods on a set of specified 4388763a5cSDaniel Lezcano CPUs for power capping. Idle period can be injected 4488763a5cSDaniel Lezcano synchronously on a set of specified CPUs or alternatively 4588763a5cSDaniel Lezcano on a per CPU basis. 4675d2364eSSrinivas Pandruvadaendif 47