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

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Message-ID: <kzcncrqchl42itomsncvgjem6iddwhslw3djcgkyzxl6xtfi76@wsuswv3vty2x>
Date: Fri, 5 Jul 2024 11:40:13 +0300
From: Serge Semin <fancer.lancer@...il.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
	Florian Fainelli <florian.fainelli@...adcom.com>, Jiaxun Yang <jiaxun.yang@...goat.com>, 
	"Maciej W. Rozycki" <macro@...am.me.uk>
Cc: Jiaxun Yang <jiaxun.yang@...goat.com>, 
	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>, Paul Burton <paulburton@...nel.org>, linux-mips@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/10] MIPS: smp: Make IPI interrupts scalable

Hi folks,

On Wed, Jul 03, 2024 at 05:04:49PM +0200, Thomas Bogendoerfer wrote:
> On Sun, Jun 16, 2024 at 10:03:05PM +0100, Jiaxun Yang wrote:
> > Define enum ipi_message_type as other architectures did to
> > allow easy extension to number of IPI interrupts, fiddle
> > around platform IPI code to adopt to the new infra, add
> > extensive BUILD_BUG_ON on IPI numbers to ensure future
> > extensions won't break existing platforms.
> > 
> > IPI related stuff are pulled to asm/ipi.h to avoid include
> > linux/interrupt.h in asm/smp.h.
> > 
> > Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> > ---
> >  arch/mips/cavium-octeon/smp.c   | 109 ++++++++++++-----------------------
> >  arch/mips/include/asm/ipi.h     |  34 +++++++++++
> >  arch/mips/include/asm/smp-ops.h |   8 +--
> >  arch/mips/include/asm/smp.h     |  42 ++++++--------
> >  arch/mips/kernel/smp-bmips.c    |  43 +++++++-------
> >  arch/mips/kernel/smp-cps.c      |   1 +
> >  arch/mips/kernel/smp.c          | 124 ++++++++++++++++++++--------------------
> >  arch/mips/loongson64/smp.c      |  51 +++++++++--------
> >  arch/mips/mm/c-octeon.c         |   2 +-
> >  arch/mips/sgi-ip27/ip27-smp.c   |  15 +++--
> >  arch/mips/sgi-ip30/ip30-smp.c   |  15 +++--
> >  arch/mips/sibyte/bcm1480/smp.c  |  19 +++---
> >  arch/mips/sibyte/sb1250/smp.c   |  13 +++--
> >  13 files changed, 236 insertions(+), 240 deletions(-)
> 
> you are touching a lot of platforms, how many did you test ?

In a one or two days I'll be able to test the series on the SoC with
2x MIPS P5600 Warrior.

-Serge(y)

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