linux-kernel - Re: CN80xx (octeontx/thunderx) breakage from f2d8340

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Message-ID: <20200312094322.bohnhgnyb7nogpq5@rric.localdomain>
Date:   Thu, 12 Mar 2020 10:43:23 +0100
From:   Robert Richter <rrichter@...vell.com>
To:     Marc Zyngier <maz@...nel.org>
CC:     Tim Harvey <tharvey@...eworks.com>,
        open list <linux-kernel@...r.kernel.org>,
        Sunil Goutham <sgoutham@...vell.com>
Subject: Re: CN80xx (octeontx/thunderx) breakage from f2d8340

Adding Sunil here.

-Robert

On 12.03.20 08:55:52, Marc Zyngier wrote:
> 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...