+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
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"
- depends on CPU_IDLE
- 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.
+ bool
config CPU_IDLE_GOV_LADDER
- bool
- depends on CPU_IDLE
+ bool "Ladder governor (for periodic timer tick)"
default y
config CPU_IDLE_GOV_MENU
- bool
- depends on CPU_IDLE && NO_HZ
+ bool "Menu governor (for tickless system)"
default y
-config ARCH_NEEDS_CPU_IDLE_COUPLED
- def_bool n
-
config DT_IDLE_STATES
bool
-if CPU_IDLE
+menu "ARM CPU Idle Drivers"
+depends on ARM || ARM64
+source "drivers/cpuidle/Kconfig.arm"
+endmenu
-menu "ARM64 CPU Idle Drivers"
-depends on ARM64
-source "drivers/cpuidle/Kconfig.arm64"
+menu "MIPS CPU Idle Drivers"
+depends on MIPS
+source "drivers/cpuidle/Kconfig.mips"
endmenu
-config CPU_IDLE_CALXEDA
- bool "CPU Idle Driver for Calxeda processors"
- depends on ARCH_HIGHBANK
- help
- Select this to enable cpuidle on Calxeda processors.
+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