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Date:   Fri, 11 Nov 2022 14:02:16 +0100
From:   Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To:     Cye Borg <cyborgyn@gmail.com>
Cc:     Ahelenia =?utf-8?Q?Ziemia=C5=84ska?= 
        <nabijaczleweli@nabijaczleweli.xyz>,
        Jonathan Corbet <corbet@lwn.net>,
        Federico Vaga <federico.vaga@vaga.pv.it>,
        Alex Shi <alexs@kernel.org>,
        Yanteng Si <siyanteng@loongson.cn>,
        Hu Haowen <src.res@email.cn>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        Jakub Kicinski <kuba@kernel.org>,
        Bagas Sanjaya <bagasdotme@gmail.com>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-doc-tw-discuss@lists.sourceforge.net,
        linux-mips@vger.kernel.org
Subject: Re: [PATCH v3 08/15] MIPS: IP27: remove KV_MAGIC
Message-ID: <20221111130216.GA11187@alpha.franken.de>
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On Fri, Nov 11, 2022 at 06:39:10AM +0100, Cye Borg wrote:
> Just asking:
> This code in SGI seems to help bring online other CPUs.
> - Does it use the firmware to do it?
> - Is there a possibility that the magic number in this case is used by the
> firmware?
> - If yes: do we break multiprocessing on SGI if we delete this "useless
> relic", which is not referenced in the linux code elsewhere?

this magic is just for a internal struct not used by firmware. It came
from IRIX code, but there is no point in keeping it

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]