:orphan:

.. title:: CONFIG_ARC_FIRQ

.. kconfig:: CONFIG_ARC_FIRQ

CONFIG_ARC_FIRQ
###############

*FIRQ enable*

Type: ``bool``

Help
====

.. code-block:: none

    Fast interrupts are supported (FIRQ). If FIRQ enabled, for interrupts
    with highest priority, status32 and pc will be saved in aux regs,
    other regs will be saved according to the number of register bank;
    If FIRQ is disabled, the handle of interrupts with highest priority
    will be same with other interrupts.
    NOTE: we don't allow the configuration with FIRQ enabled and only one
    interrupt priority level (so all interrupts are FIRQ). Such
    configuration isn't supported in software and it is not beneficial
    from the performance point of view.

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

\ :kconfig:`SOC_ARC_HSDK <CONFIG_SOC_ARC_HSDK>` || \ :kconfig:`SOC_ARC_IOT <CONFIG_SOC_ARC_IOT>` || (\ :kconfig:`SOC_EMSDP_EM4 <CONFIG_SOC_EMSDP_EM4>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM5D <CONFIG_SOC_EMSDP_EM5D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM6 <CONFIG_SOC_EMSDP_EM6>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM7D <CONFIG_SOC_EMSDP_EM7D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM7D_ESP <CONFIG_SOC_EMSDP_EM7D_ESP>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM9D <CONFIG_SOC_EMSDP_EM9D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM11D <CONFIG_SOC_EMSDP_EM11D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSK_EM7D <CONFIG_SOC_EMSK_EM7D>` && \ :kconfig:`SOC_EMSK <CONFIG_SOC_EMSK>`) || (\ :kconfig:`SOC_NSIM_EM <CONFIG_SOC_NSIM_EM>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_EM7D_V22 <CONFIG_SOC_NSIM_EM7D_V22>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_SEM <CONFIG_SOC_NSIM_SEM>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS <CONFIG_SOC_NSIM_HS>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS_SMP <CONFIG_SOC_NSIM_HS_SMP>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS_MPUV6 <CONFIG_SOC_NSIM_HS_MPUV6>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || \ :kconfig:`SOC_QEMU_ARC <CONFIG_SOC_QEMU_ARC>` || \ :kconfig:`SOC_ARC_HSDK <CONFIG_SOC_ARC_HSDK>` || \ :kconfig:`SOC_ARC_IOT <CONFIG_SOC_ARC_IOT>` || (\ :kconfig:`SOC_EMSDP_EM4 <CONFIG_SOC_EMSDP_EM4>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM5D <CONFIG_SOC_EMSDP_EM5D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM6 <CONFIG_SOC_EMSDP_EM6>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM7D <CONFIG_SOC_EMSDP_EM7D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM7D_ESP <CONFIG_SOC_EMSDP_EM7D_ESP>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM9D <CONFIG_SOC_EMSDP_EM9D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSDP_EM11D <CONFIG_SOC_EMSDP_EM11D>` && \ :kconfig:`SOC_ARC_EMSDP <CONFIG_SOC_ARC_EMSDP>`) || (\ :kconfig:`SOC_EMSK_EM7D <CONFIG_SOC_EMSK_EM7D>` && \ :kconfig:`SOC_EMSK <CONFIG_SOC_EMSK>`) || (\ :kconfig:`SOC_NSIM_EM <CONFIG_SOC_NSIM_EM>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_EM7D_V22 <CONFIG_SOC_NSIM_EM7D_V22>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_SEM <CONFIG_SOC_NSIM_SEM>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS <CONFIG_SOC_NSIM_HS>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS_SMP <CONFIG_SOC_NSIM_HS_SMP>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || (\ :kconfig:`SOC_NSIM_HS_MPUV6 <CONFIG_SOC_NSIM_HS_MPUV6>` && \ :kconfig:`SOC_NSIM <CONFIG_SOC_NSIM>`) || \ :kconfig:`SOC_QEMU_ARC <CONFIG_SOC_QEMU_ARC>` || (\ :kconfig:`ISA_ARCV2 <CONFIG_ISA_ARCV2>` && \ :kconfig:`NUM_IRQ_PRIO_LEVELS <CONFIG_NUM_IRQ_PRIO_LEVELS>` > 1 && \ :kconfig:`ARC <CONFIG_ARC>`)

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

Defaults
========

- y
- y
- y
- y
- y
- y
- n
- y
- y
- n if \ :kconfig:`BOARD_EM_STARTERKIT_R23 <CONFIG_BOARD_EM_STARTERKIT_R23>`
- y if \ :kconfig:`BOARD_EM_STARTERKIT_R22 <CONFIG_BOARD_EM_STARTERKIT_R22>`
- y
- y
- n
- y
- y
- y
- n
- y
- y
- y
- y
- y
- y
- n
- y
- y
- n if \ :kconfig:`BOARD_EM_STARTERKIT_R23 <CONFIG_BOARD_EM_STARTERKIT_R23>`
- y if \ :kconfig:`BOARD_EM_STARTERKIT_R22 <CONFIG_BOARD_EM_STARTERKIT_R22>`
- y
- y
- n
- y
- y
- y
- n
- y

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



At ``<Zephyr SoC>/arc/snps_arc_hsdk/Kconfig.defconfig:27``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_ARC_HSDK

----

At ``<Zephyr SoC>/arc/snps_arc_iot/Kconfig.defconfig:34``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_ARC_IOT

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em4:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:14``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM4 && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em5d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:15``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM5D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em6:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:16``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM6 && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em7d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:17``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM7D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em7d_esp:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:18``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_EMSDP_EM7D_ESP && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em9d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:19``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM9D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em11d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:20``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM11D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsk/Kconfig.defconfig.em7d:34``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_emsk/Kconfig.defconfig:10``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n if BOARD_EM_STARTERKIT_R23
    	default y if BOARD_EM_STARTERKIT_R22
    	depends on SOC_EMSK_EM7D && SOC_EMSK

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.em:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:12``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_EM && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.em7d_v22:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:13``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_EM7D_V22 && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.sem:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:14``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_NSIM_SEM && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs:27``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:15``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs_smp:28``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:16``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS_SMP && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs_mpuv6:33``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:19``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS_MPUV6 && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_qemu/Kconfig.defconfig:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:25`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_QEMU_ARC

----

At ``<Zephyr SoC>/arc/snps_arc_hsdk/Kconfig.defconfig:27``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_ARC_HSDK

----

At ``<Zephyr SoC>/arc/snps_arc_iot/Kconfig.defconfig:34``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_ARC_IOT

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em4:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:14``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM4 && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em5d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:15``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM5D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em6:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:16``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM6 && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em7d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:17``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM7D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em7d_esp:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:18``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_EMSDP_EM7D_ESP && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em9d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:19``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM9D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig.em11d:21``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsdp/Kconfig.defconfig:20``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_EMSDP_EM11D && SOC_ARC_EMSDP

----

At ``<Zephyr SoC>/arc/snps_emsk/Kconfig.defconfig.em7d:34``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_emsk/Kconfig.defconfig:10``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n if BOARD_EM_STARTERKIT_R23
    	default y if BOARD_EM_STARTERKIT_R22
    	depends on SOC_EMSK_EM7D && SOC_EMSK

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.em:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:12``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_EM && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.em7d_v22:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:13``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_EM7D_V22 && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.sem:30``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:14``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_NSIM_SEM && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs:27``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:15``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs_smp:28``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:16``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS_SMP && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig.hs_mpuv6:33``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27`` → ``<Zephyr SoC>/arc/snps_nsim/Kconfig.defconfig:19``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default y
    	depends on SOC_NSIM_HS_MPUV6 && SOC_NSIM

----

At ``<Zephyr SoC>/arc/snps_qemu/Kconfig.defconfig:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:27``

Menu path: (Top)

.. code-block:: kconfig

    config ARC_FIRQ
    	bool
    	default n
    	depends on SOC_QEMU_ARC

----

At ``<Zephyr Architecture>/arc/Kconfig:154``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:39`` → ``<Zephyr Architecture>/Kconfig:12``

Menu path: (Top) → ARC Options → ARC CPU Options

.. code-block:: kconfig

    config ARC_FIRQ
    	bool "FIRQ enable"
    	default y
    	depends on ISA_ARCV2 && NUM_IRQ_PRIO_LEVELS > 1 && ARC
    	help
    	  Fast interrupts are supported (FIRQ). If FIRQ enabled, for interrupts
    	  with highest priority, status32 and pc will be saved in aux regs,
    	  other regs will be saved according to the number of register bank;
    	  If FIRQ is disabled, the handle of interrupts with highest priority
    	  will be same with other interrupts.
    	  NOTE: we don't allow the configuration with FIRQ enabled and only one
    	  interrupt priority level (so all interrupts are FIRQ). Such
    	  configuration isn't supported in software and it is not beneficial
    	  from the performance point of view.

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