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Linux/drivers/cpuidle/Kconfig

  1 menu "CPU Idle"
  2 
  3 config 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)
  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 
 15 if CPU_IDLE
 16 
 17 config CPU_IDLE_MULTIPLE_DRIVERS
 18         bool "Support multiple cpuidle drivers"
 19         default n
 20         help
 21          Allows the cpuidle framework to use different drivers for each CPU.
 22          This is useful if you have a system with different CPU latencies and
 23          states. If unsure say N.
 24 
 25 config CPU_IDLE_GOV_LADDER
 26         bool "Ladder governor (for periodic timer tick)"
 27         default y
 28 
 29 config CPU_IDLE_GOV_MENU
 30         bool "Menu governor (for tickless system)"
 31         default y
 32 
 33 menu "ARM CPU Idle Drivers"
 34 depends on ARM
 35 source "drivers/cpuidle/Kconfig.arm"
 36 endmenu
 37 
 38 menu "MIPS CPU Idle Drivers"
 39 depends on MIPS
 40 source "drivers/cpuidle/Kconfig.mips"
 41 endmenu
 42 
 43 menu "POWERPC CPU Idle Drivers"
 44 depends on PPC
 45 source "drivers/cpuidle/Kconfig.powerpc"
 46 endmenu
 47 
 48 endif
 49 
 50 config ARCH_NEEDS_CPU_IDLE_COUPLED
 51         def_bool n
 52 endmenu

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