[PATCH] Add irq host and hwirq pair fields to outputwhenshowing interrupts.

[Zhang Wei-r63237]

> > > Now, regarding the patch itself, printing the hw irq is not 
> > > that useful
> > > without some indication of which host it belongs to. Best 
> is to add a
> > > name() or something like that to the host ops.
> > > 
> > 
> > Sure, can I use the PIC controller node full name from 
> of_tree as the
> > host name?
> 
> There is no 1:1 relationship between an OF node and an irq 
> host. (There
> is -most- of the time but I left the irq core on purpose more 
> flexible,
> hence the match() method. On some setups it makes sense to 
> have multiple
> HW PICs share a single domain number (for example on cell).
> 
> Thus I'd rather have a way for the host to give you that 
> name, which in
> turn can be the OF path if there is such a thing, or something else...
> 
> Best might be 4 columns:
> 
> <virq> <hwirq> <pic name> <host name>
> 
> (PIC name is the same as in /proc/interrupts).
>  
> > Do you prefer debugfs instead of /proc/interrupts?
> 
> Yes, at least for now. Maybe if we can convince ourselves that nothing
> significant would break of changing /proc/interrupts, then we can add
> stuffs to it, but I'd rather avoid.
> 

Hi, Ben, 

How about set the host name when calling irq_alloc_host?
In the mpic, the host name can be the mpic->name, is it ok?

Thanks!
Best Regards,
Zhang Wei