linux-kernel - Re: [PATCH v4 0/2] Fix RISC-V's arch-topology reporting

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Date:   Tue, 26 Jul 2022 01:12:28 -0700
From:   Atish Patra <atishp@...shpatra.org>
To:     Conor Dooley <Conor.Dooley@...rochip.com>
Cc:     "will@...nel.org" <will@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Palmer Dabbelt <palmer@...osinc.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Sudeep Holla <sudeep.holla@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daire McNamara <Daire.McNamara@...rochip.com>,
        Niklas Cassel <niklas.cassel@....com>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Zong Li <zong.li@...ive.com>,
        Emil Renner Berhing <kernel@...il.dk>,
        Jonas Hahnfeld <hahnjo@...njo.de>, Guo Ren <guoren@...nel.org>,
        Anup Patel <anup@...infault.org>,
        Heiko Stübner <heiko@...ech.de>,
        Philipp Tomsich <philipp.tomsich@...ll.eu>,
        Rob Herring <robh@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Brice Goglin <Brice.Goglin@...ia.fr>
Subject: Re: [PATCH v4 0/2] Fix RISC-V's arch-topology reporting

On Mon, Jul 25, 2022 at 2:20 AM <Conor.Dooley@...rochip.com> wrote:
>
> On 25/07/2022 10:13, Will Deacon wrote:
> > On Sat, Jul 23, 2022 at 11:22:01AM +0000, Conor.Dooley@...rochip.com wrote:
> >> On 15/07/2022 18:51, Conor Dooley wrote:
> >>
> >> Hey,
> >>
> >> Not got any feedback on the smpboot changes from the RISC-V side.
> >> I tested it on polarfire, the d1 (with both SMP & !SMP set iirc)
> >> & on the u540. It all looked good to me.
> >>
> >> I'd like to have this fixed for v5.20, but there isn't too much
> >> time left before the mw. Not too sure about the cross-tree changes,
> >> does it need an immutable branch or could it go through driver-core?
> >> Catalin suggested removing the CC stable from patch 1/2 & adding it
> >> as a dependency for the 2/2 patch - but obviously that's up to the
> >> committer to sort out.
> >
> > I'm finalising the arm64 queue today, so I don't really want to pull in
> > additional changes beyond critical fixes at this point, I'm afraid. I was
> > half-expecting a pull request from the riscv side last week but I didn't
> > see anything.
>
> Yeah, that's fair. It's late in the game for cross-tree messing.
> I know Palmer has been p busy recently.
>
> > FWIW, if there's still no movement by -rc1, then I'm happy to queue all
> > of this on its own branch in the arm64 tree for 5.21.
>
> Hopefully someone on the riscv side will have confirmed what I am doing
> is sane by then.
>
> >
> > Let me know.
>
> I will, thanks!

Sorry for the delayed response here. I was planning to test the series
last week itself
but got dragged into something else and a qemu bug for NUMA.

Thanks for the fixes. I have tested this on Qemu(removing the topology
node) for the following configurations.
SMP, !SMP, NUMA (2 sockets)

FWIW,
Tested-by: Atish Patra <atishp@...osinc.com>

-- 
Regards,
Atish