Re: Regression by 01f779f4862b ("irqchip/GIC: Don't deactivate interrupts forwarded to a guest")

From: Thomas Gleixner
Date: Wed Sep 16 2015 - 12:53:41 EST


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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/