diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2024-03-07 17:03:05 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-03-25 19:38:29 +0300 |
| commit | ca8df97fe6798afbe395fc4a8e23bac0c7fbd248 (patch) | |
| tree | 69249e22caf0efc1419b39a47b12b68f9c86a567 /drivers/irqchip/Kconfig | |
| parent | 2333df5ae51ead2188d07c99e841e159a664741e (diff) | |
| download | linux-ca8df97fe6798afbe395fc4a8e23bac0c7fbd248.tar.xz | |
irqchip/riscv-aplic: Add support for MSI-mode
The RISC-V advanced platform-level interrupt controller (APLIC) has
two modes of operation: 1) Direct mode and 2) MSI mode.
(For more details, refer https://github.com/riscv/riscv-aia)
In APLIC MSI-mode, wired interrupts are forwared as message signaled
interrupts (MSIs) to CPUs via IMSIC.
Extend the existing APLIC irqchip driver to support MSI-mode for
RISC-V platforms having both wired interrupts and MSIs.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20240307140307.646078-8-apatel@ventanamicro.com
Diffstat (limited to 'drivers/irqchip/Kconfig')
| -rw-r--r-- | drivers/irqchip/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index f6728471f592..687d17e47556 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -545,6 +545,12 @@ config RISCV_APLIC depends on RISCV select IRQ_DOMAIN_HIERARCHY +config RISCV_APLIC_MSI + bool + depends on RISCV_APLIC + select GENERIC_MSI_IRQ + default RISCV_APLIC + config RISCV_IMSIC bool depends on RISCV |