Help¶

Use separate stack for FIRQ handing. When the fast irq is also a direct irq, this will get the minimal interrupt latency.

Direct dependencies¶

ARC_FIRQ && RGF_NUM_BANKS > 1 && ARC

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Kconfig definition¶

At arch/arc/Kconfig:120

Included via Kconfig:8 → Kconfig.zephyr:29 → arch/Kconfig:12

Menu path: (Top) → ARC Options → ARCv2 Family Options → FIRQ enable

config ARC_FIRQ_STACK
    bool "Enable separate firq stack"
    depends on ARC_FIRQ && RGF_NUM_BANKS > 1 && ARC
    help
      Use separate stack for FIRQ handing. When the fast irq is also a direct
      irq, this will get the minimal interrupt latency.

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