linux-kernel - Re: [PATCH 2/2] armv8: aarch32: Add SMP support for 32-bit Linux kernel

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Message-ID: <1728374.uyXUDC3UK8@wuerfel>
Date:   Fri, 23 Sep 2016 13:58:43 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Alison Wang <b18965@...escale.com>, shawnguo@...nel.org,
        kernel@...gutronix.de, fabio.estevam@....com,
        linux@...linux.org.uk, linux-kernel@...r.kernel.org,
        scott.wood@....com, stuart.yoder@....com, leoyang.li@....com,
        jason.jin@....com
Subject: Re: [PATCH 2/2] armv8: aarch32: Add SMP support for 32-bit Linux kernel

On Friday, September 23, 2016 10:19:06 AM CEST Alison Wang wrote:
> The patch adds SMP support for running 32-bit Linux kernel for
> Layerscape platforms. Spin-table method is used for SMP support.
> 
> Signed-off-by: Alison Wang <alison.wang@....com>
> Signed-off-by: Chenhui Zhao <chenhui.zhao@....com>
> ---
>  arch/arm/mach-imx/common.h          |  1 +
>  arch/arm/mach-imx/mach-layerscape.c |  1 +
>  arch/arm/mach-imx/platsmp.c         | 49 +++++++++++++++++++++++++++++++++++++
>  3 files changed, 51 insertions(+)
> 

This really shouldn't be needed: if it works on a 64-bit kernel
without platform specific SMP operations, why do you need it on 32-bit
kernels?

	Arnd