linux-kernel - Re: [PATCH v5] irqchip, gicv3-its, numa: Enable workaround for Cavium thunderx erratum 23144

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Message-ID: <20160421174042.GD24726@rric.localdomain>
Date:	Thu, 21 Apr 2016 19:40:42 +0200
From:	Robert Richter <robert.richter@...iumnetworks.com>
To:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Jonathan Corbet <corbet@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>
CC:	David Daney <david.daney@...iumnetworks.com>,
	<gpkulkarni@...il.com>,
	Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5] irqchip, gicv3-its, numa: Enable workaround for
 Cavium thunderx erratum 23144

On 15.04.16 21:30:05, Robert Richter wrote:
> From: Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>
> 
> The erratum fixes the hang of ITS SYNC command by avoiding inter node
> io and collections/cpu mapping on thunderx dual-socket platform.
> 
> This fix is only applicable for Cavium's ThunderX dual-socket platform.
> 
> This is based on NUMA v16 series.
> Message-Id: <1460155828-8690-1-git-send-email-ddaney.cavm@...il.com>

Will, Catalin,

after NUMA base patches went into linux-next (many thanks), please
consider this pass 1.x errata workaround for inclusion too.

Thanks,

-Robert

> 
> v5 (by Robert Richter):
> fixed use of cpumask_of_node() only for (node >= 0)
> minor style fixes
> 
> v4:
> updated silicon-errata.txt
> updated as per Robert Richter review comment.
> 
> v3:
> updatated as per Marc Zyngier's review comments.
> http://www.spinics.net/lists/arm-kernel/msg443462.html
> 
> v2:
> updatated as per Marc Zyngier's review comments.
> 
> Reviewed-by: Robert Richter <rrichter@...ium.com>
> Signed-off-by: Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>
> Signed-off-by: Robert Richter <rrichter@...ium.com>
> ---
>  Documentation/arm64/silicon-errata.txt |  1 +
>  arch/arm64/Kconfig                     |  9 +++++++
>  drivers/irqchip/irq-gic-v3-its.c       | 49 ++++++++++++++++++++++++++++++++--
>  3 files changed, 57 insertions(+), 2 deletions(-)