menu "CPU Idle" config 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 config CPU_IDLE_GOV_LADDER bool "Ladder governor (for periodic timer tick)" config CPU_IDLE_GOV_MENU bool "Menu governor (for tickless system)" config DT_IDLE_STATES bool menu "ARM CPU Idle Drivers" depends on ARM || ARM64 source "drivers/cpuidle/Kconfig.arm" endmenu menu "MIPS CPU Idle Drivers" depends on MIPS source "drivers/cpuidle/Kconfig.mips" endmenu menu "POWERPC CPU Idle Drivers" depends on PPC source "drivers/cpuidle/Kconfig.powerpc" endmenu endif config ARCH_NEEDS_CPU_IDLE_COUPLED def_bool n endmenu