diff options
Diffstat (limited to 'drivers/cpuidle/Kconfig.arm')
| -rw-r--r-- | drivers/cpuidle/Kconfig.arm | 89 |
1 files changed, 72 insertions, 17 deletions
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm index f52144808455..a1ee475d180d 100644 --- a/drivers/cpuidle/Kconfig.arm +++ b/drivers/cpuidle/Kconfig.arm @@ -1,20 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only # # ARM CPU Idle drivers # config ARM_CPUIDLE - bool "Generic ARM/ARM64 CPU idle Driver" - select DT_IDLE_STATES + bool "Generic ARM CPU idle Driver" + depends on ARM + select DT_IDLE_STATES + select CPU_IDLE_MULTIPLE_DRIVERS + help + Select this to enable generic cpuidle driver for ARM. + It provides a generic idle driver whose idle states are configured + at run-time through DT nodes. The CPUidle suspend backend is + initialized by calling the CPU operations init idle hook + provided by architecture code. + +config ARM_PSCI_CPUIDLE + bool "PSCI CPU idle Driver" + depends on ARM_PSCI_FW + select DT_IDLE_STATES select CPU_IDLE_MULTIPLE_DRIVERS - help - Select this to enable generic cpuidle driver for ARM. - It provides a generic idle driver whose idle states are configured - at run-time through DT nodes. The CPUidle suspend backend is - initialized by calling the CPU operations init idle hook - provided by architecture code. + help + Select this to enable PSCI firmware based CPUidle driver for ARM. + It provides an idle driver that is capable of detecting and + managing idle states through the PSCI firmware interface. + + The driver has limitations when used with PREEMPT_RT: + - If the idle states are described with the non-hierarchical layout, + all idle states are still available. + + - If the idle states are described with the hierarchical layout, + only the idle states defined per CPU are available, but not the ones + being shared among a group of CPUs (aka cluster idle states). + +config ARM_PSCI_CPUIDLE_DOMAIN + bool "PSCI CPU idle Domain" + depends on ARM_PSCI_CPUIDLE + depends on PM_GENERIC_DOMAINS_OF + select DT_IDLE_GENPD + default y + help + Select this to enable the PSCI based CPUidle driver to use PM domains, + which is needed to support the hierarchical DT based layout of the + idle states. config ARM_BIG_LITTLE_CPUIDLE bool "Support for ARM big.LITTLE processors" - depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS + depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST depends on MCPM && !ARM64 select ARM_CPU_SUSPEND select CPU_IDLE_MULTIPLE_DRIVERS @@ -40,13 +71,13 @@ config ARM_HIGHBANK_CPUIDLE config ARM_KIRKWOOD_CPUIDLE bool "CPU Idle Driver for Marvell Kirkwood SoCs" - depends on MACH_KIRKWOOD && !ARM64 + depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64 help This adds the CPU Idle driver for Marvell Kirkwood SoCs. config ARM_ZYNQ_CPUIDLE bool "CPU Idle Driver for Xilinx Zynq processors" - depends on ARCH_ZYNQ && !ARM64 + depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64 help Select this to enable cpuidle on Xilinx Zynq processors. @@ -54,24 +85,48 @@ config ARM_U8500_CPUIDLE bool "Cpu Idle Driver for the ST-E u8500 processors" depends on ARCH_U8500 && !ARM64 help - Select this to enable cpuidle for ST-E u8500 processors + Select this to enable cpuidle for ST-E u8500 processors. config ARM_AT91_CPUIDLE bool "Cpu Idle Driver for the AT91 processors" default y - depends on ARCH_AT91 && !ARM64 + depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64 help - Select this to enable cpuidle for AT91 processors + Select this to enable cpuidle for AT91 processors. config ARM_EXYNOS_CPUIDLE bool "Cpu Idle Driver for the Exynos processors" - depends on ARCH_EXYNOS && !ARM64 + depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64 select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP help - Select this to enable cpuidle for Exynos processors + Select this to enable cpuidle for Exynos processors. config ARM_MVEBU_V7_CPUIDLE bool "CPU Idle Driver for mvebu v7 family processors" - depends on ARCH_MVEBU && !ARM64 + depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64 help Select this to enable cpuidle on Armada 370, 38x and XP processors. + +config ARM_TEGRA_CPUIDLE + bool "CPU Idle Driver for NVIDIA Tegra SoCs" + depends on (ARCH_TEGRA || COMPILE_TEST) && !ARM64 && MMU + depends on ARCH_SUSPEND_POSSIBLE + select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP + select ARM_CPU_SUSPEND + help + Select this to enable cpuidle for NVIDIA Tegra20/30/114/124 SoCs. + +config ARM_QCOM_SPM_CPUIDLE + bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)" + depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU + depends on ARCH_SUSPEND_POSSIBLE + select ARM_CPU_SUSPEND + select CPU_IDLE_MULTIPLE_DRIVERS + select DT_IDLE_STATES + select QCOM_SCM + select QCOM_SPM + help + Select this to enable cpuidle for Qualcomm processors. + The Subsystem Power Manager (SPM) controls low power modes for the + CPU and L2 cores. It interface with various system drivers to put + the cores in low power modes. |