linux-kernel - Re: [PATCH 01/10] MIPS: smp: Make IPI interrupts scalable

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Message-ID: <alpine.DEB.2.21.2407042324300.38148@angie.orcam.me.uk>
Date: Thu, 4 Jul 2024 23:36:02 +0100 (BST)
From: "Maciej W. Rozycki" <macro@...am.me.uk>
To: Jiaxun Yang <jiaxun.yang@...goat.com>
cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
    Florian Fainelli <florian.fainelli@...adcom.com>, 
    Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
    Huacai Chen <chenhuacai@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
    Serge Semin <fancer.lancer@...il.com>, 
    "paulburton@...nel.org" <paulburton@...nel.org>, 
    "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>, 
    linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/10] MIPS: smp: Make IPI interrupts scalable

On Thu, 4 Jul 2024, Jiaxun Yang wrote:

> >  SOC-it (or SOC-it 101 to be precise) is the name of a bus controller:
> >
> > System controller/revision =    MIPS SOC-it 101 OCP / 1.3   SDR-FW-4:1
> >
> > used across numerous platforms from the M4K core onwards, UP, MT, or MP.  
> > I think it would make sense if you revealed the processor type instead.
> 
> Sure, sorry to be vague on the platform detail.
> 
> I actually tried on two Malta configurations, CoreFPGA6 interAptiv 2MPF (2 cores, 2 VPE, 4TC),
> and CoreFPGA3 34Kc MT (2VPE 9TC).

 This is much better, thanks, and the choice of CPUs feels adequate.  The 
mention of the 34K CPU brings fond memories too, as I was a member of the 
development team for this design, very innovative at its time, and still 
nowadays I believe.

> >  Technically I could run it on my SB1250, but I'm too overloaded now to 
> > commit to any timescale.  Sorry.
> 
> No worries, I'll try to fetch a BMIPS3000 SMP router to get Broadcom platform
> undercover.

 But that's a completely different design from the SB-1 line, isn't it?

  Maciej