:orphan:

.. title:: CONFIG_HEAP_MEM_POOL_SIZE

.. kconfig:: CONFIG_HEAP_MEM_POOL_SIZE

CONFIG_HEAP_MEM_POOL_SIZE
#########################

*Heap memory pool size (in bytes)*

Type: ``int``

Help
====

.. code-block:: none

    This option specifies the size of the heap memory pool used when
    dynamically allocating memory using k_malloc(). The maximum size of
    the memory pool is only limited to available memory. A size of zero
    means that no heap memory pool is defined.

Direct dependencies
===================

\ :kconfig:`DMA_MCUX_LPC <CONFIG_DMA_MCUX_LPC>` || \ :kconfig:`DMA_MCUX_LPC <CONFIG_DMA_MCUX_LPC>` || (\ :kconfig:`DMA_MCUX_LPC <CONFIG_DMA_MCUX_LPC>` && \ :kconfig:`BOARD_MIMXRT685_EVK <CONFIG_BOARD_MIMXRT685_EVK>`) || (!\ :kconfig:`TRUSTED_EXECUTION_SECURE <CONFIG_TRUSTED_EXECUTION_SECURE>` && (\ :kconfig:`BOARD_THINGY53_NRF5340_CPUAPP <CONFIG_BOARD_THINGY53_NRF5340_CPUAPP>` || \ :kconfig:`BOARD_THINGY53_NRF5340_CPUAPP_NS <CONFIG_BOARD_THINGY53_NRF5340_CPUAPP_NS>`)) || \ :kconfig:`BT <CONFIG_BT>` || (\ :kconfig:`USB <CONFIG_USB>` && \ :kconfig:`SOC_FAMILY_SAM0 <CONFIG_SOC_FAMILY_SAM0>`) || (\ :kconfig:`SOC_NRF5340_CPUAPP_QKAA <CONFIG_SOC_NRF5340_CPUAPP_QKAA>` && \ :kconfig:`SOC_SERIES_NRF53X <CONFIG_SOC_SERIES_NRF53X>` && \ :kconfig:`SOC_FAMILY_NRF <CONFIG_SOC_FAMILY_NRF>`) || (\ :kconfig:`SOC_NRF5340_CPUNET_QKAA <CONFIG_SOC_NRF5340_CPUNET_QKAA>` && \ :kconfig:`SOC_SERIES_NRF53X <CONFIG_SOC_SERIES_NRF53X>` && \ :kconfig:`SOC_FAMILY_NRF <CONFIG_SOC_FAMILY_NRF>`) || (\ :kconfig:`USB <CONFIG_USB>` && \ :kconfig:`SOC_FAMILY_SAM0 <CONFIG_SOC_FAMILY_SAM0>`) || (\ :kconfig:`SOC_NRF5340_CPUAPP_QKAA <CONFIG_SOC_NRF5340_CPUAPP_QKAA>` && \ :kconfig:`SOC_SERIES_NRF53X <CONFIG_SOC_SERIES_NRF53X>` && \ :kconfig:`SOC_FAMILY_NRF <CONFIG_SOC_FAMILY_NRF>`) || (\ :kconfig:`SOC_NRF5340_CPUNET_QKAA <CONFIG_SOC_NRF5340_CPUNET_QKAA>` && \ :kconfig:`SOC_SERIES_NRF53X <CONFIG_SOC_SERIES_NRF53X>` && \ :kconfig:`SOC_FAMILY_NRF <CONFIG_SOC_FAMILY_NRF>`) || (\ :kconfig:`BT_RPC_CLIENT <CONFIG_BT_RPC_CLIENT>` && \ :kconfig:`BT_RPC <CONFIG_BT_RPC>`) || \ :kconfig:`NRF_MODEM_LIB <CONFIG_NRF_MODEM_LIB>` || \ :kconfig:`BOARD_BL5340_DVK_CPUAPP <CONFIG_BOARD_BL5340_DVK_CPUAPP>` || \ :kconfig:`BOARD_BL5340_DVK_CPUAPP_NS <CONFIG_BOARD_BL5340_DVK_CPUAPP_NS>` || \ :kconfig:`BOARD_NRF5340DK_NRF5340_CPUAPP <CONFIG_BOARD_NRF5340DK_NRF5340_CPUAPP>` || \ :kconfig:`BOARD_NRF5340DK_NRF5340_CPUAPP_NS <CONFIG_BOARD_NRF5340DK_NRF5340_CPUAPP_NS>` || \ :kconfig:`KERNEL_MEM_POOL <CONFIG_KERNEL_MEM_POOL>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

- 4096
- 4096
- 4096
- 4096 if \ :kconfig:`BT_RPMSG <CONFIG_BT_RPMSG>`
- 16384
- 1024
- 4096 if \ :kconfig:`NRF_802154_SER_HOST <CONFIG_NRF_802154_SER_HOST>`
- 4096 if \ :kconfig:`NRF_802154_SER_RADIO <CONFIG_NRF_802154_SER_RADIO>`
- 1024
- 4096 if \ :kconfig:`NRF_802154_SER_HOST <CONFIG_NRF_802154_SER_HOST>`
- 4096 if \ :kconfig:`NRF_802154_SER_RADIO <CONFIG_NRF_802154_SER_RADIO>`
- 4096
- 512
- 4096 if \ :kconfig:`BT_RPMSG <CONFIG_BT_RPMSG>`
- 4096 if \ :kconfig:`BT_RPMSG <CONFIG_BT_RPMSG>`
- 0 if !\ :kconfig:`POSIX_MQUEUE <CONFIG_POSIX_MQUEUE>`
- 1024 if \ :kconfig:`POSIX_MQUEUE <CONFIG_POSIX_MQUEUE>`

Kconfig definitions
===================



At ``<Zephyr>/boards/arm/lpcxpresso55s28/Kconfig.defconfig:39``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096
    	depends on DMA_MCUX_LPC

----

At ``<Zephyr>/boards/arm/lpcxpresso55s69/Kconfig.defconfig:57``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096
    	depends on DMA_MCUX_LPC

----

At ``<Zephyr>/boards/arm/mimxrt685_evk/Kconfig.defconfig:36``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096
    	depends on DMA_MCUX_LPC && BOARD_MIMXRT685_EVK

----

At ``<Zephyr>/boards/arm/thingy53_nrf5340/Kconfig.defconfig:65``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if BT_RPMSG
    	depends on !TRUSTED_EXECUTION_SECURE && (BOARD_THINGY53_NRF5340_CPUAPP || BOARD_THINGY53_NRF5340_CPUAPP_NS)

----

At ``<Zephyr>/boards/xtensa/esp32/Kconfig.defconfig:22``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:22``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 16384
    	depends on BT

----

At ``<Zephyr>/soc/arm/atmel_sam0/common/Kconfig.defconfig.series:49``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:25`` → ``<nRF>/doc/_build/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr>/soc/arm/atmel_sam0/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 1024
    	depends on USB && SOC_FAMILY_SAM0

----

At ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.nrf5340_CPUAPP_QKAA:20``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:25`` → ``<nRF>/doc/_build/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr>/soc/arm/nordic_nrf/Kconfig.defconfig:8`` → ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.series:8``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if NRF_802154_SER_HOST
    	depends on SOC_NRF5340_CPUAPP_QKAA && SOC_SERIES_NRF53X && SOC_FAMILY_NRF

----

At ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.nrf5340_CPUNET_QKAA:18``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:25`` → ``<nRF>/doc/_build/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr>/soc/arm/nordic_nrf/Kconfig.defconfig:8`` → ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.series:8``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if NRF_802154_SER_RADIO
    	depends on SOC_NRF5340_CPUNET_QKAA && SOC_SERIES_NRF53X && SOC_FAMILY_NRF

----

At ``<Zephyr>/soc/arm/atmel_sam0/common/Kconfig.defconfig.series:49``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:27`` → ``<Zephyr>/soc/arm/atmel_sam0/Kconfig.defconfig:6``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 1024
    	depends on USB && SOC_FAMILY_SAM0

----

At ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.nrf5340_CPUAPP_QKAA:20``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:27`` → ``<Zephyr>/soc/arm/nordic_nrf/Kconfig.defconfig:8`` → ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.series:8``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if NRF_802154_SER_HOST
    	depends on SOC_NRF5340_CPUAPP_QKAA && SOC_SERIES_NRF53X && SOC_FAMILY_NRF

----

At ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.nrf5340_CPUNET_QKAA:18``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:27`` → ``<Zephyr>/soc/arm/nordic_nrf/Kconfig.defconfig:8`` → ``<Zephyr>/soc/arm/nordic_nrf/nrf53/Kconfig.defconfig.series:8``

Menu path: (Top)

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if NRF_802154_SER_RADIO
    	depends on SOC_NRF5340_CPUNET_QKAA && SOC_SERIES_NRF53X && SOC_FAMILY_NRF

----

At ``<nRF>/subsys/bluetooth/rpc/Kconfig:83``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:31`` → ``<Zephyr>/modules/Kconfig:6`` → ``<nRF>/doc/_build/kconfig/Kconfig.modules:2`` → ``<nRF>/Kconfig.nrf:54`` → ``<nRF>/subsys/Kconfig:10`` → ``<nRF>/subsys/bluetooth/Kconfig:38``

Menu path: (Top) → Modules → nrf (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrf) → Nordic nRF Connect → Bluetooth Low Energy → BLE over nRF RPC → Bluetooth over RPC

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096
    	depends on BT_RPC_CLIENT && BT_RPC

----

At ``<nRF>/lib/nrf_modem_lib/Kconfig:21``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:31`` → ``<Zephyr>/modules/Kconfig:6`` → ``<nRF>/doc/_build/kconfig/Kconfig.modules:2`` → ``<nRF>/Kconfig.nrf:56`` → ``<nRF>/lib/Kconfig:11``

Menu path: (Top) → Modules → nrf (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrf) → Nordic nRF Connect → Libraries → Enable Modem library

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 512
    	depends on NRF_MODEM_LIB

----

At ``<Zephyr>/boards/arm/bl5340_dvk/Kconfig:64``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:35`` → ``<Zephyr>/boards/Kconfig:60``

Menu path: (Top) → Board Options

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if BT_RPMSG
    	depends on BOARD_BL5340_DVK_CPUAPP || BOARD_BL5340_DVK_CPUAPP_NS

----

At ``<Zephyr>/boards/arm/nrf5340dk_nrf5340/Kconfig:63``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:35`` → ``<Zephyr>/boards/Kconfig:60``

Menu path: (Top) → Board Options

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int
    	default 4096 if BT_RPMSG
    	depends on BOARD_NRF5340DK_NRF5340_CPUAPP || BOARD_NRF5340DK_NRF5340_CPUAPP_NS

----

At ``<Zephyr>/kernel/Kconfig:513``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:38``

Menu path: (Top) → General Kernel Options → Other Kernel Object Options → Use Kernel Memory Pool

.. code-block:: kconfig

    config HEAP_MEM_POOL_SIZE
    	int "Heap memory pool size (in bytes)"
    	default 0 if !POSIX_MQUEUE
    	default 1024 if POSIX_MQUEUE
    	depends on KERNEL_MEM_POOL
    	help
    	  This option specifies the size of the heap memory pool used when
    	  dynamically allocating memory using k_malloc(). The maximum size of
    	  the memory pool is only limited to available memory. A size of zero
    	  means that no heap memory pool is defined.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*