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SubjectRe: [PATCH] irqchip/jcore-aic: Fix missing allocation of IRQ descriptors
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On Thu, 2023-05-11 at 09:47 +0100, Marc Zyngier wrote:
> On Thu, 11 May 2023 08:22:20 +0100,
> John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> wrote:
> >
> > Hi Jason!
>
> ???

Sorry, I was confused by this:

> > > [- Jason]
> > >
> > > It really begs the question: how has it ever been working before?
> >
> > Users already used a locally patched kernel to work around this problem.
>
> You're not answering my question. Does it mean JCore never worked
> upstream?

It did still work which is why the previously suggested change was to make a
failing call to irq_alloc_descs() non-fatal. The boards still booted up.

> > > Is there any plan to modernise the port and get it to allocate
> > > irq_descs on demand, as we do on most architectures?
> >
> > Yes, there are plans to modernize the port. We're first working on
> > upstreaming all kinds of patches that have been queuing up over the
> > time.
>
> I'd rather you skip that step and focus on making it work as a modern
> architecture. This really looks like ARM circa 2007... :-/

We have a patch-set for switching it to device tree in the pipeline.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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