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From: Thomas Gleixner <tglx@linutronix.de>
To: Jisheng Zhang <jszhang@marvell.com>
Cc: jason@lakedaemon.net, linux-arm-kernel@lists.infradead.org,
	marc.zyngier@arm.com, linux-kernel@vger.kernel.org
Subject: Re: Regression by 01f779f4862b ("irqchip/GIC: Don't deactivate interrupts forwarded to a guest")
Date: Wed, 16 Sep 2015 18:52:41 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1509161851330.3951@nanos> (raw)
In-Reply-To: <20150917003202.498ff83c@xhacker>

On Thu, 17 Sep 2015, Jisheng Zhang wrote:

> Hi Marc,
> 
> Commit 01f779f4862b ("irqchip/GIC: Don't deactivate interrupts forwarded to a
> guest") causes a regression on Marvell BG4CT SoC. In this SoC, there's only one
> GIC, the secondary irq controller is Synopsys DW iCtl:
> drivers/irqchip/irq-dw-apb-ictl.c
> 
> So cascading_gic_irq() should return true on Marvell BG4CT SoC, but it returns
> false. The logic in cascading_gic_irq() doesn't take cascaded irq controller
> which is provided by non-gic controllers.

I have a fix pending for this in

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.irq

714665351cc7: irqchip/gic: Use IRQD_FORWARDED_TO_VCPU flag

Can you please give that a try?

Thanks,

	tglx

  parent reply	other threads:[~2015-09-16 16:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-16 16:32 Jisheng Zhang
2015-09-16 16:43 ` Jisheng Zhang
2015-09-16 16:55   ` Marc Zyngier
2015-09-16 16:52 ` Thomas Gleixner [this message]
2015-09-16 16:59   ` Jisheng Zhang
2015-09-16 17:10     ` Jisheng Zhang
2015-09-16 17:16       ` Marc Zyngier
2015-09-17 20:51 ` Linus Walleij

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