1menu "CPU Idle" 2 3config CPU_IDLE 4 bool "CPU idle PM support" 5 default y if ACPI || PPC_PSERIES 6 select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE) 7 select CPU_IDLE_GOV_MENU if (NO_HZ || NO_HZ_IDLE) && !CPU_IDLE_GOV_TEO 8 help 9 CPU idle is a generic framework for supporting software-controlled 10 idle processor power management. It includes modular cross-platform 11 governors that can be swapped during runtime. 12 13 If you're using an ACPI-enabled platform, you should say Y here. 14 15if CPU_IDLE 16 17config CPU_IDLE_MULTIPLE_DRIVERS 18 bool 19 20config CPU_IDLE_GOV_LADDER 21 bool "Ladder governor (for periodic timer tick)" 22 23config CPU_IDLE_GOV_MENU 24 bool "Menu governor (for tickless system)" 25 26config CPU_IDLE_GOV_TEO 27 bool "Timer events oriented (TEO) governor (for tickless systems)" 28 help 29 This governor implements a simplified idle state selection method 30 focused on timer events and does not do any interactivity boosting. 31 32 Some workloads benefit from using it and it generally should be safe 33 to use. Say Y here if you are not happy with the alternatives. 34 35config DT_IDLE_STATES 36 bool 37 38menu "ARM CPU Idle Drivers" 39depends on ARM || ARM64 40source "drivers/cpuidle/Kconfig.arm" 41endmenu 42 43menu "MIPS CPU Idle Drivers" 44depends on MIPS 45source "drivers/cpuidle/Kconfig.mips" 46endmenu 47 48menu "POWERPC CPU Idle Drivers" 49depends on PPC 50source "drivers/cpuidle/Kconfig.powerpc" 51endmenu 52 53endif 54 55config ARCH_NEEDS_CPU_IDLE_COUPLED 56 def_bool n 57endmenu 58