linux-kernel - Re: [v2 PATCH] irqchip/sifive-plic: Add support for multiple PLICs

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Date:   Fri, 28 Feb 2020 19:03:00 +0000
From:   Atish Patra <Atish.Patra@....com>
To:     "maz@...nel.org" <maz@...nel.org>
CC:     "paul.walmsley@...ive.com" <paul.walmsley@...ive.com>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "palmer@...belt.com" <palmer@...belt.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jason@...edaemon.net" <jason@...edaemon.net>
Subject: Re: [v2 PATCH] irqchip/sifive-plic: Add support for multiple PLICs

On Fri, 2020-02-28 at 18:53 +0000, Marc Zyngier wrote:
> On 2020-02-21 23:22, Atish Patra wrote:
> > Current, PLIC driver can support only 1 PLIC on the board. However,
> > there can be multiple PLICs present on a two socket systems in
> > RISC-V.
> > 
> > Modify the driver so that each PLIC handler can have a information
> > about individual PLIC registers and an irqdomain associated with
> > it.
> > 
> > Tested on two socket RISC-V system based on VCU118 FPGA connected
> > via
> > OmniXtend protocol.
> > 
> > Signed-off-by: Atish Patra <atish.patra@....com>
> > ---
> > This patch is rebased on top of 5.6-rc2 and following plic fix from
> > hotplug series.
> > 
> > https://lkml.org/lkml/2020/2/20/1220
> 
> How do you want this to be merged? I haven't really followed the
> hotplug
> series, but given that this is a pretty simple patch, I'd rather
> have 
> things
> based the other way around so that it can be merged independently.
> 
I am fine with that or

I can remove the PLIC patch from the hotplug series and include this
series as that patch is not really dependant on hotplug code.

https://patchwork.kernel.org/patch/11407379/

Let me know what do you prefer.

> Thanks,
> 
>          M.

-- 
Regards,
Atish