linux-kernel - Re: [PATCH v2] mips: smp-bmips: fix CPU mappings

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Message-ID: <20210301145046.GE11261@alpha.franken.de>
Date:   Mon, 1 Mar 2021 15:50:46 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Álvaro Fernández Rojas <noltari@...il.com>
Cc:     jonas.gorski@...il.com, Florian Fainelli <f.fainelli@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        bcm-kernel-feedback-list@...adcom.com, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mips: smp-bmips: fix CPU mappings

On Wed, Feb 24, 2021 at 08:33:36AM +0100, Álvaro Fernández Rojas wrote:
> When booting bmips with SMP enabled on a BCM6358 running on CPU #1 instead of
> CPU #0, the current CPU mapping code produces the following:
> - smp_processor_id(): 0
> - cpu_logical_map(0): 1
> - cpu_number_map(0): 1
> 
> This is because SMP isn't supported on BCM6358 since it has a shared TLB, so
> it is disabled and max_cpus is decreased from 2 to 1.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  v2: Fix duplicated line
> 
>  arch/mips/kernel/smp-bmips.c | 27 +++++++++++++++++----------
>  1 file changed, 17 insertions(+), 10 deletions(-)

applied to mips-next.

Thomas.

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