drivers/cpuidle/Kconfig.arm

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # ARM CPU Idle drivers
   4 #
   5 config ARM_CPUIDLE
   6         bool "Generic ARM CPU idle Driver"
   7         depends on ARM
   8         select DT_IDLE_STATES
   9         select CPU_IDLE_MULTIPLE_DRIVERS
  10         help
  11           Select this to enable generic cpuidle driver for ARM.
  12           It provides a generic idle driver whose idle states are configured
  13           at run-time through DT nodes. The CPUidle suspend backend is
  14           initialized by calling the CPU operations init idle hook
  15           provided by architecture code.
  16
  17 config ARM_PSCI_CPUIDLE
  18         bool "PSCI CPU idle Driver"
  19         depends on ARM_PSCI_FW
  20         select DT_IDLE_STATES
  21         select CPU_IDLE_MULTIPLE_DRIVERS
  22         help
  23           Select this to enable PSCI firmware based CPUidle driver for ARM.
  24           It provides an idle driver that is capable of detecting and
  25           managing idle states through the PSCI firmware interface.
  26
  27           The driver has limitations when used with PREEMPT_RT:
  28           - If the idle states are described with the non-hierarchical layout,
  29             all idle states are still available.
  30
  31           - If the idle states are described with the hierarchical layout,
  32             only the idle states defined per CPU are available, but not the ones
  33             being shared among a group of CPUs (aka cluster idle states).
  34
  35 config ARM_PSCI_CPUIDLE_DOMAIN
  36         bool "PSCI CPU idle Domain"
  37         depends on ARM_PSCI_CPUIDLE
  38         depends on PM_GENERIC_DOMAINS_OF
  39         select DT_IDLE_GENPD
  40         default y
  41         help
  42           Select this to enable the PSCI based CPUidle driver to use PM domains,
  43           which is needed to support the hierarchical DT based layout of the
  44           idle states.
  45
  46 config ARM_BIG_LITTLE_CPUIDLE
  47         bool "Support for ARM big.LITTLE processors"
  48         depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST
  49         depends on MCPM && !ARM64
  50         select ARM_CPU_SUSPEND
  51         select CPU_IDLE_MULTIPLE_DRIVERS
  52         select DT_IDLE_STATES
  53         help
  54           Select this option to enable CPU idle driver for big.LITTLE based
  55           ARM systems. Driver manages CPUs coordination through MCPM and
  56           define different C-states for little and big cores through the
  57           multiple CPU idle drivers infrastructure.
  58
  59 config ARM_CLPS711X_CPUIDLE
  60         bool "CPU Idle Driver for CLPS711X processors"
  61         depends on ARCH_CLPS711X && !ARM64 || COMPILE_TEST
  62         help
  63           Select this to enable cpuidle on Cirrus Logic CLPS711X SOCs.
  64
  65 config ARM_HIGHBANK_CPUIDLE
  66         bool "CPU Idle Driver for Calxeda processors"
  67         depends on ARM_PSCI && !ARM64
  68         select ARM_CPU_SUSPEND
  69         help
  70           Select this to enable cpuidle on Calxeda processors.
  71
  72 config ARM_KIRKWOOD_CPUIDLE
  73         bool "CPU Idle Driver for Marvell Kirkwood SoCs"
  74         depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64
  75         help
  76           This adds the CPU Idle driver for Marvell Kirkwood SoCs.
  77
  78 config ARM_ZYNQ_CPUIDLE
  79         bool "CPU Idle Driver for Xilinx Zynq processors"
  80         depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64
  81         help
  82           Select this to enable cpuidle on Xilinx Zynq processors.
  83
  84 config ARM_U8500_CPUIDLE
  85         bool "Cpu Idle Driver for the ST-E u8500 processors"
  86         depends on ARCH_U8500 && !ARM64
  87         help
  88           Select this to enable cpuidle for ST-E u8500 processors.
  89
  90 config ARM_AT91_CPUIDLE
  91         bool "Cpu Idle Driver for the AT91 processors"
  92         default y
  93         depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64
  94         help
  95           Select this to enable cpuidle for AT91 processors.
  96
  97 config ARM_EXYNOS_CPUIDLE
  98         bool "Cpu Idle Driver for the Exynos processors"
  99         depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64
 100         select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
 101         help
 102           Select this to enable cpuidle for Exynos processors.
 103
 104 config ARM_MVEBU_V7_CPUIDLE
 105         bool "CPU Idle Driver for mvebu v7 family processors"
 106         depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64
 107         help
 108           Select this to enable cpuidle on Armada 370, 38x and XP processors.
 109
 110 config ARM_TEGRA_CPUIDLE
 111         bool "CPU Idle Driver for NVIDIA Tegra SoCs"
 112         depends on (ARCH_TEGRA || COMPILE_TEST) && !ARM64 && MMU
 113         depends on ARCH_SUSPEND_POSSIBLE
 114         select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
 115         select ARM_CPU_SUSPEND
 116         help
 117           Select this to enable cpuidle for NVIDIA Tegra20/30/114/124 SoCs.
 118
 119 config ARM_QCOM_SPM_CPUIDLE
 120         bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)"
 121         depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU
 122         depends on ARCH_SUSPEND_POSSIBLE
 123         select ARM_CPU_SUSPEND
 124         select CPU_IDLE_MULTIPLE_DRIVERS
 125         select DT_IDLE_STATES
 126         select QCOM_SCM
 127         select QCOM_SPM
 128         help
 129           Select this to enable cpuidle for Qualcomm processors.
 130           The Subsystem Power Manager (SPM) controls low power modes for the
 131           CPU and L2 cores. It interface with various system drivers to put
 132           the cores in low power modes.