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From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum
Date: Thu, 5 May 2016 17:39:37 +0100	[thread overview]
Message-ID: <572B7749.3070708@arm.com> (raw)
In-Reply-To: <1462465921-3220-2-git-send-email-ray.jui@broadcom.com>

On 05/05/16 17:32, Ray Jui wrote:
> Alex Barba <alex.barba@broadcom.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@broadcom.com>
> Signed-off-by: Ray Jui <ray.jui@broadcom.com>

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

I'll queue that for 4.7.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <marc.zyngier@arm.com>
To: Ray Jui <ray.jui@broadcom.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	Alex Barba <alex.barba@broadcom.com>
Subject: Re: [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum
Date: Thu, 5 May 2016 17:39:37 +0100	[thread overview]
Message-ID: <572B7749.3070708@arm.com> (raw)
In-Reply-To: <1462465921-3220-2-git-send-email-ray.jui@broadcom.com>

On 05/05/16 17:32, Ray Jui wrote:
> Alex Barba <alex.barba@broadcom.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@broadcom.com>
> Signed-off-by: Ray Jui <ray.jui@broadcom.com>

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

I'll queue that for 4.7.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

  reply	other threads:[~2016-05-05 16:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-05 16:32 [PATCH v3] Workaround for Broadcom NS2 gicv2m implementation Ray Jui
2016-05-05 16:32 ` Ray Jui
2016-05-05 16:32 ` [PATCH v3] irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum Ray Jui
2016-05-05 16:32   ` Ray Jui
2016-05-05 16:39   ` Marc Zyngier [this message]
2016-05-05 16:39     ` Marc Zyngier

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