Re: [PATCH v8 06/11] irqchip: mips-cpu: Convert to simple domain

[Marc Zyngier]

On 2020-03-25 13:59, Jiaxun Yang wrote:

[...]

> > > So probably we can use legacy domain when  MIPS IRQ BASE is in the
> > > range of legacy IRQ
> > > and switch to simple domain when it's not in that range?
> >
> > No, see below.
> >
> > > Here in Loongson systems IRQ 0-15 is occupied by I8259 so I did this
> > > hack.
> >
> > Well, if you have to consider which Linux IRQ gets assigned,
> > then your platform is definitely not ready for non-legacy
> > irqdomains. Just stick to legacy for now until you have removed
> > all the code that knows the hwirq mapping.
>
> Thanks.
>
> So I have to allocate irq_desc here in driver manually?

No, you are probably better off just dropping this patch, as MIPS
doesn't seem to be ready for a wholesale switch to virtual interrupts.

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