This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.
CONFIG_SMP

Enable symmetric multithreading support

Type: bool

Help

When true, kernel will be built with SMP support, allowing more than one CPU to schedule Zephyr tasks at a time.

Direct dependencies

SOC_SERIES_INTEL_CAVS_V15 || SOC_SERIES_INTEL_CAVS_V18 || SOC_SERIES_INTEL_CAVS_V20 || SOC_SERIES_INTEL_CAVS_V25 || USE_SWITCH

(Includes any dependencies from ifs and menus.)

Defaults

  • y

  • y

  • y

  • y

Kconfig definitions

At soc/xtensa/intel_adsp/cavs_v15/Kconfig.defconfig.series:18

Included via Kconfig:8Kconfig.zephyr:19doc/_build/Kconfig/Kconfig.soc.defconfig:1soc/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config SMP
    bool
    default y
    depends on SOC_SERIES_INTEL_CAVS_V15

At soc/xtensa/intel_adsp/cavs_v18/Kconfig.defconfig.series:18

Included via Kconfig:8Kconfig.zephyr:19doc/_build/Kconfig/Kconfig.soc.defconfig:1soc/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config SMP
    bool
    default y
    depends on SOC_SERIES_INTEL_CAVS_V18

At soc/xtensa/intel_adsp/cavs_v20/Kconfig.defconfig.series:18

Included via Kconfig:8Kconfig.zephyr:19doc/_build/Kconfig/Kconfig.soc.defconfig:1soc/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config SMP
    bool
    default y
    depends on SOC_SERIES_INTEL_CAVS_V20

At soc/xtensa/intel_adsp/cavs_v25/Kconfig.defconfig.series:18

Included via Kconfig:8Kconfig.zephyr:19doc/_build/Kconfig/Kconfig.soc.defconfig:1soc/xtensa/intel_adsp/Kconfig.defconfig:6

Menu path: (Top)

config SMP
    bool
    default y
    depends on SOC_SERIES_INTEL_CAVS_V25

At kernel/Kconfig:788

Included via Kconfig:8Kconfig.zephyr:30

Menu path: (Top) → General Kernel Options → SMP Options

config SMP
    bool "Enable symmetric multithreading support"
    depends on USE_SWITCH
    help
      When true, kernel will be built with SMP support, allowing
      more than one CPU to schedule Zephyr tasks at a time.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)