tree ecc3cdb115f9218828d833103a812be95fbe5a70
parent 6279228432352f43f43f5e760771151605bf6d82
author Anup Patel <apatel@ventanamicro.com> 1679975543 +0530
committer Marc Zyngier <maz@kernel.org> 1680949584 +0100

irqchip/riscv-intc: Add empty irq_eoi() for chained irq handlers

We add empty irq_eoi() in RISC-V INTC driver for child irqchip
drivers (such as PLIC, SBI IPI, CLINT, APLIC, IMSIC, etc) which
implement chained handlers for parent per-HART local interrupts.
This hels us avoid unnecessary mask/unmask of per-HART local
interrupts at the time of handling interrupts.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230328035223.1480939-8-apatel@ventanamicro.com