Re: [PATCH v2 3/5] irqchip: RISC-V Local Interrupt Controller Driver

[Christoph Hellwig]

On Mon, Sep 10, 2018 at 06:07:12PM +0200, Thomas Gleixner wrote:
> > Considering above, it is better to have a distinct irqchip and
> > irq_domain for all local interrupts (just like this patch).
> 
> If that's the future usage

It's not, at least there has been no proposal for that so far, and I
don't really think it is how the architecture was intended.

> and that's what my impression was, under which I
> changed my mind, yes, then having a domain model is certainly of advantage
> especially when those things end up being different per SoC.

And even if we went down the way of using the other bits it would
be architectureal in the RISC-V spec - these are not available for
vendor specific uses.