linux-kernel - Re: [PATCH v6 5/7] RISC-V: Parse cpu topology during boot.

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Message-ID: <alpine.DEB.2.21.9999.1906062159380.28147@viisi.sifive.com>
Date:   Thu, 6 Jun 2019 22:00:51 -0700 (PDT)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     Atish Patra <atish.patra@....com>
cc:     linux-kernel@...r.kernel.org, Russell King <linux@...linux.org.uk>,
        Sudeep Holla <sudeep.holla@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Anup Patel <anup@...infault.org>,
        Catalin Marinas <catalin.marinas@....com>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Jeremy Linton <jeremy.linton@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-riscv@...ts.infradead.org,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Morten Rasmussen <morten.rasmussen@....com>,
        Otto Sabart <ottosabart@...erm.com>,
        Palmer Dabbelt <palmer@...ive.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v6 5/7] RISC-V: Parse cpu topology during boot.

On Wed, 29 May 2019, Atish Patra wrote:

> Currently, there are no topology defined for RISC-V.
> Parse the cpu-map node from device tree and setup the
> cpu topology.
> 
> CPU topology after applying the patch.
> $cat /sys/devices/system/cpu/cpu2/topology/core_siblings_list
> 0-3
> $cat /sys/devices/system/cpu/cpu3/topology/core_siblings_list
> 0-3
> $cat /sys/devices/system/cpu/cpu3/topology/physical_package_id
> 0
> $cat /sys/devices/system/cpu/cpu3/topology/core_id
> 3
> 
> Signed-off-by: Atish Patra <atish.patra@....com>
> Acked-by: Sudeep Holla <sudeep.holla@....com>

Looks reasonable to me.

Acked-by: Paul Walmsley <paul.walmsley@...ive.com>

We're assuming, on the RISC-V side, that these patches will go in via 
another tree.


- Paul