Re: CN80xx (octeontx/thunderx) breakage from f2d8340

[Marc Zyngier <maz@kernel.org>]

Hi Tim,

On 2020-03-11 20:17, Tim Harvey wrote:
> Marc,
> 
> Im seeing a failure to boot on an octeontx CN80xx (thunderx) due to
> f2d8340 ("irqchip/gic-v3: Add GICv4.1 VPEID size discovery"). I'm not
> sure if something is hanging, I just get no console output from the
> kernel.

That's odd. It probably means that a SError has been taken to EL3,
and the firmware is not equipped to deal with it. Great stuff!

> Is there perhaps something in the dt that requires change? The
> board/dts I'm using is:
> https://github.com/Gateworks/dts-newport/blob/sdk-10.1.1.0-newport/gw6404-linux.dts
> https://github.com/Gateworks/dts-newport/blob/sdk-10.1.1.0-newport/gw640x-linux.dtsi
> https://github.com/Gateworks/dts-newport/blob/sdk-10.1.1.0-newport/cn81xx-linux.dtsi
> 
> Any ideas? I've cc'd the Cavium/Marvell folk to see if they know
> what's up or can reproduce on some of their hardware.

This is most probably Cavium erratum 38539. Please give [1] a go and
let me know whether it helps by replying to the patch.

Thanks,

         M.

[1] https://lore.kernel.org/lkml/20200311115649.26060-1-maz@kernel.org/
-- 
Jazz is not dead. It just smells funny...