Re: [PATCH v16 0/9] RISC-V IPI Improvements

From: Marc Zyngier
Date: Sun Feb 05 2023 - 06:04:27 EST


On Tue, 03 Jan 2023 14:12:12 +0000,
Anup Patel <apatel@xxxxxxxxxxxxxxxx> wrote:
>
> This series aims to improve IPI support in Linux RISC-V in following ways:
> 1) Treat IPIs as normal per-CPU interrupts instead of having custom RISC-V
> specific hooks. This also makes Linux RISC-V IPI support aligned with
> other architectures.
> 2) Remote TLB flushes and icache flushes should prefer local IPIs instead
> of SBI calls whenever we have specialized hardware (such as RISC-V AIA
> IMSIC and RISC-V SWI) which allows S-mode software to directly inject
> IPIs without any assistance from M-mode runtime firmware.

[...]

I'm queuing patches 3 and 9 via the irqchip tree as they are
standalone.

For the rest, I need an Ack from the riscv maintainers as they change
a large amount of arch-specific code, and the couple of irqchip
patches depend on these changes.

Palmer, Paul?

Thanks,

M.

--
Without deviation from the norm, progress is not possible.