Re: [PATCH v3 08/16] irqchip/gic: Configure SGIs as standard interrupts

[Marc Zyngier]

On 2020-09-17 08:54, Jon Hunter wrote:
> On 17/09/2020 08:50, Marc Zyngier wrote:
> > Hi Linus,
> >
> > On 2020-09-17 08:40, Linus Walleij wrote:
> > > On Wed, Sep 16, 2020 at 5:11 PM Marc Zyngier <maz@xxxxxxxxxx> wrote:
> > >
> > > > Can you try the patch below and let me know?
> > >
> > > I tried this patch and now Ux500 WORKS. So this patch is definitely
> > > something you should apply.
> > >
> > > > -                       if (is_frankengic())
> > > > -                               set_sgi_intid(irqstat);
> > > > +                       this_cpu_write(sgi_intid, intid);
> > >
> > > This needs changing to irqstat to compile as pointed out by Jon.
> > >
> > > With that:
> > > Tested-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> >
> > Thanks a lot for that.
> >
> > Still need to understand why some of Jon's systems are left 
> > unbootable,
> > despite having similar GIC implementations (Tegra194 and Tegra210 use
> > the same GIC-400, and yet only one of the two boots correctly...).
>
> So far, I have only tested this patch on Tegra20. Let me try the other
> failing boards this morning and see if those still fail.

Tegra20 (if I remember well) is a dual A9 with the same GIC 
implementation
as Ux500, hence requiring the source CPU bits to be written back. So 
this
patch should have cured it, but didn't...

/me puzzled.

        M.
--
Jazz is not dead. It just smells funny...