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SubjectRe: [PATCH V15 00/15] irqchip: Add LoongArch-related irqchip drivers
On Sun, 17 Jul 2022 12:29:05 +0100,
Jianmin Lv <> wrote:
> On 2022/7/17 下午6:02, Marc Zyngier wrote:
> > But the other issue is that you seem to call this function from two
> > different locations. This cannot be right, as there should be only one
> > probe order, and not multiple.
> >
> As we described two IRQ models(Legacy and Extended) in this cover
> letter, the parent domain of MSI domain can be htvec domain(Legacy) or
> eiointc domain(Extended). In MADT, only one APIC(HTPIC for htvec or
> EIOPIC for eiointc) is allowed to pass into kernel, and then in the
> irqchip driver, only one kind APIC of them can be parsed from MADT, so
> we have to support two probe order for them.

Do you really have the two variants in the wild? Or is this just
because this is a possibility?


Without deviation from the norm, progress is not possible.

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