CONFIG_NUM_2ND_LEVEL_AGGREGATORS

Total number of second level interrupt aggregators

Type: int

Help

The number of level 2 interrupt aggregators to support. Each aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 2 interrupts.

Direct dependencies

BOARD_INTEL_ADSP_CAVS15 || BOARD_INTEL_ADSP_CAVS18 || BOARD_INTEL_ADSP_CAVS20 || BOARD_INTEL_ADSP_CAVS25 || BOARD_INTEL_S1000_CRB || (MULTI_LEVEL_INTERRUPTS && SOC_OPENISA_RV32M1_RISCV32) || 2ND_LEVEL_INTERRUPTS

(Includes any dependencies from ifs and menus.)

Defaults

• 4

• 4

• 4

• 4

• 4

• 8 if RV32M1_INTMUX_CHANNEL_7

• 7 if RV32M1_INTMUX_CHANNEL_6

• 6 if RV32M1_INTMUX_CHANNEL_5

• 5 if RV32M1_INTMUX_CHANNEL_4

• 4 if RV32M1_INTMUX_CHANNEL_3

• 3 if RV32M1_INTMUX_CHANNEL_2

• 2 if RV32M1_INTMUX_CHANNEL_1

• 1

• 1

Kconfig definitions

At <Zephyr>/boards/xtensa/intel_adsp_cavs15/Kconfig.defconfig:30

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 4
    depends on BOARD_INTEL_ADSP_CAVS15

---

At <Zephyr>/boards/xtensa/intel_adsp_cavs18/Kconfig.defconfig:30

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 4
    depends on BOARD_INTEL_ADSP_CAVS18

---

At <Zephyr>/boards/xtensa/intel_adsp_cavs20/Kconfig.defconfig:30

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 4
    depends on BOARD_INTEL_ADSP_CAVS20

---

At <Zephyr>/boards/xtensa/intel_adsp_cavs25/Kconfig.defconfig:30

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 4
    depends on BOARD_INTEL_ADSP_CAVS25

---

At <Zephyr>/boards/xtensa/intel_s1000_crb/Kconfig.defconfig:34

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:18

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 4
    depends on BOARD_INTEL_S1000_CRB

---

At <Zephyr>/soc/riscv/openisa_rv32m1/Kconfig.defconfig:55

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config NUM_2ND_LEVEL_AGGREGATORS
    int
    default 8 if RV32M1_INTMUX_CHANNEL_7
    default 7 if RV32M1_INTMUX_CHANNEL_6
    default 6 if RV32M1_INTMUX_CHANNEL_5
    default 5 if RV32M1_INTMUX_CHANNEL_4
    default 4 if RV32M1_INTMUX_CHANNEL_3
    default 3 if RV32M1_INTMUX_CHANNEL_2
    default 2 if RV32M1_INTMUX_CHANNEL_1
    default 1
    depends on MULTI_LEVEL_INTERRUPTS && SOC_OPENISA_RV32M1_RISCV32

---

At <Zephyr>/drivers/interrupt_controller/Kconfig.multilevel:45

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:26 → <Zephyr>/drivers/interrupt_controller/Kconfig:49

Menu path: (Top) → Device Drivers → Interrupt Controllers → Multi-level interrupt support → Second-level interrupt support

config NUM_2ND_LEVEL_AGGREGATORS
    int "Total number of second level interrupt aggregators"
    range 1 8
    default 1
    depends on 2ND_LEVEL_INTERRUPTS
    help
      The number of level 2 interrupt aggregators to support. Each
      aggregator can manage at most MAX_IRQ_PER_AGGREGATOR level 2
      interrupts.

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