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- menuconfig CPU_IDLE
- bool "CPU idle PM support"
- default y if ACPI || PPC_PSERIES
- select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE)
- select CPU_IDLE_GOV_MENU if (NO_HZ || NO_HZ_IDLE)
- help
- CPU idle is a generic framework for supporting software-controlled
- idle processor power management. It includes modular cross-platform
- governors that can be swapped during runtime.
- If you're using an ACPI-enabled platform, you should say Y here.
- if CPU_IDLE
- config CPU_IDLE_MULTIPLE_DRIVERS
- bool "Support multiple cpuidle drivers"
- default n
- help
- Allows the cpuidle framework to use different drivers for each CPU.
- This is useful if you have a system with different CPU latencies and
- states. If unsure say N.
- config CPU_IDLE_GOV_LADDER
- bool "Ladder governor (for periodic timer tick)"
- default y
- config CPU_IDLE_GOV_MENU
- bool "Menu governor (for tickless system)"
- default y
- config CPU_IDLE_CALXEDA
- bool "CPU Idle Driver for Calxeda processors"
- depends on ARCH_HIGHBANK
- select ARM_CPU_SUSPEND
- help
- Select this to enable cpuidle on Calxeda processors.
- config CPU_IDLE_ZYNQ
- bool "CPU Idle Driver for Xilinx Zynq processors"
- depends on ARCH_ZYNQ
- help
- Select this to enable cpuidle on Xilinx Zynq processors.
- config CPU_IDLE_BIG_LITTLE
- bool "Support for ARM big.LITTLE processors"
- depends on ARCH_VEXPRESS_TC2_PM
- select ARM_CPU_SUSPEND
- select CPU_IDLE_MULTIPLE_DRIVERS
- help
- Select this option to enable CPU idle driver for big.LITTLE based
- ARM systems. Driver manages CPUs coordination through MCPM and
- define different C-states for little and big cores through the
- multiple CPU idle drivers infrastructure.
- endif
- config ARCH_NEEDS_CPU_IDLE_COUPLED
- def_bool n
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