diff options
Diffstat (limited to 'drivers/cpuidle/Kconfig')
| -rw-r--r-- | drivers/cpuidle/Kconfig | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig new file mode 100644 index 000000000..ff71dd662 --- /dev/null +++ b/drivers/cpuidle/Kconfig @@ -0,0 +1,87 @@ +# SPDX-License-Identifier: GPL-2.0-only +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) && !CPU_IDLE_GOV_TEO + 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 CPU_IDLE_GOV_TEO + bool "Timer events oriented (TEO) governor (for tickless systems)" + help + This governor implements a simplified idle state selection method + focused on timer events and does not do any interactivity boosting. + + Some workloads benefit from using it and it generally should be safe + to use. Say Y here if you are not happy with the alternatives. + +config CPU_IDLE_GOV_HALTPOLL + bool "Haltpoll governor (for virtualized systems)" + depends on KVM_GUEST + help + This governor implements haltpoll idle state selection, to be + used in conjunction with the haltpoll cpuidle driver, allowing + for polling for a certain amount of time before entering idle + state. + + Some virtualized workloads benefit from using it. + +config DT_IDLE_STATES + bool + +config DT_IDLE_GENPD + depends on PM_GENERIC_DOMAINS_OF + 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 + +menu "RISC-V CPU Idle Drivers" +depends on RISCV +source "drivers/cpuidle/Kconfig.riscv" +endmenu + +config HALTPOLL_CPUIDLE + tristate "Halt poll cpuidle driver" + depends on X86 && KVM_GUEST + default y + help + This option enables halt poll cpuidle driver, which allows to poll + before halting in the guest (more efficient than polling in the + host via halt_poll_ns for some scenarios). + +endif + +config ARCH_NEEDS_CPU_IDLE_COUPLED + def_bool n +endmenu |