CONFIG_RGF_NUM_BANKS

Number of General Purpose Register Banks

Type: int

Help

The ARC CPU can be configured to have more than one register bank. If fast interrupts are supported (FIRQ), the 2nd register bank, in the set, will be used by FIRQ interrupts. If fast interrupts are supported but there is only 1 register bank, the fast interrupt handler must save and restore general purpose registers.

Direct dependencies

SOC_ARC_HSDK || SOC_ARC_IOT || (SOC_EMSDP_EM4 && SOC_ARC_EMSDP) || (SOC_EMSDP_EM5D && SOC_ARC_EMSDP) || (SOC_EMSDP_EM6 && SOC_ARC_EMSDP) || (SOC_EMSDP_EM7D && SOC_ARC_EMSDP) || (SOC_EMSDP_EM7D_ESP && SOC_ARC_EMSDP) || (SOC_EMSDP_EM9D && SOC_ARC_EMSDP) || (SOC_EMSDP_EM11D && SOC_ARC_EMSDP) || (SOC_EMSK_EM7D && SOC_EMSK) || (SOC_EMSK_EM11D && SOC_EMSK) || (SOC_EMSK_EM9D && SOC_EMSK) || (SOC_NSIM_EM && SOC_NSIM) || (SOC_NSIM_EM7D_V22 && SOC_NSIM) || (SOC_NSIM_SEM && SOC_NSIM) || (SOC_NSIM_HS && SOC_NSIM) || (SOC_NSIM_HS_SMP && SOC_NSIM) || SOC_QEMU_ARC || (CPU_ARCV2 && ARC)

(Includes any dependencies from ifs and menus.)

Defaults

• 2

• 2

• 2

• 2

• 2

• 2

• 1

• 2

• 2

• 1

• 2

• 2

• 2

• 1

• 1

• 2

• 2

• 1

• 2

Kconfig definitions

At <Zephyr>/soc/arc/snps_arc_hsdk/Kconfig.defconfig:18

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

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_ARC_HSDK

---

At <Zephyr>/soc/arc/snps_arc_iot/Kconfig.defconfig:25

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

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_ARC_IOT

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em4:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:14

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM4 && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em5d:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:15

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM5D && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em6:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:16

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM6 && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em7d:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:17

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM7D && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em7d_esp:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:18

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 1
    depends on SOC_EMSDP_EM7D_ESP && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em9d:15

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

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM9D && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em11d:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:20

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSDP_EM11D && SOC_ARC_EMSDP

---

At <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig.em7d:24

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig:10

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 1
    depends on SOC_EMSK_EM7D && SOC_EMSK

---

At <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig.em11d:20

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig:11

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSK_EM11D && SOC_EMSK

---

At <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig.em9d:20

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig:12

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_EMSK_EM9D && SOC_EMSK

---

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.em:21

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:15

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_NSIM_EM && SOC_NSIM

---

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.em7d_v22:21

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:16

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 1
    depends on SOC_NSIM_EM7D_V22 && SOC_NSIM

---

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.sem:21

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:17

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 1
    depends on SOC_NSIM_SEM && SOC_NSIM

---

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.hs:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:18

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_NSIM_HS && SOC_NSIM

---

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.hs_smp:15

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

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 2
    depends on SOC_NSIM_HS_SMP && SOC_NSIM

---

At <Zephyr>/soc/arc/snps_qemu/Kconfig.defconfig:18

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

Menu path: (Top)

config RGF_NUM_BANKS
    int
    default 1
    depends on SOC_QEMU_ARC

---

At <Zephyr>/arch/arc/Kconfig:97

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

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

config RGF_NUM_BANKS
    int "Number of General Purpose Register Banks"
    range 1 2
    default 2
    depends on CPU_ARCV2 && ARC
    help
      The ARC CPU can be configured to have more than one register
      bank. If fast interrupts are supported (FIRQ), the 2nd
      register bank, in the set, will be used by FIRQ interrupts.
      If fast interrupts are supported but there is only 1
      register bank, the fast interrupt handler must save
      and restore general purpose registers.

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