linux-kernel - Re: [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum

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Date:	Thu, 5 May 2016 17:39:37 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	Ray Jui <ray.jui@...adcom.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>
Cc:	linux-kernel@...r.kernel.org,
	bcm-kernel-feedback-list@...adcom.com,
	linux-arm-kernel@...ts.infradead.org,
	Alex Barba <alex.barba@...adcom.com>
Subject: Re: [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2
 GICv2m erratum

On 05/05/16 17:32, Ray Jui wrote:
> Alex Barba <alex.barba@...adcom.com> discovered Broadcom NS2 GICv2m
> implementation has an erratum where the MSI data needs to be the SPI
> number subtracted by an offset of 32, for the correct MSI interrupt
> to be triggered.
> 
> Here we are adding the workaround based on readings from the MSI_IIDR
> register, which contains a value unique to Broadcom NS2 GICv2m
> 
> Reported-by: Alex Barba <alex.barba@...adcom.com>
> Signed-off-by: Ray Jui <ray.jui@...adcom.com>

Acked-by: Marc Zyngier <marc.zyngier@....com>

I'll queue that for 4.7.

Thanks,

	M.
-- 
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