plat_irq_dispatch

[Chris Rhodin <chris@notav8.com>]

Hi,

I've been digging through the interrupt code trying to figure out what 
would be required to make it "generic irq" clean.  I have a couple of 
questions that I haven't been able to answer myself.

1) I count 24 different versions of plat_irq_dispatch, many of them only 
seem to vary in the use and priority of the 8 sources in the cause 
register.  Is this really the case or am I missing something subtle?

2) Why isn't plat_irq_dispatch looping until all active interrupts are 
serviced?

I already have what I believe is a generic plat_irq_dispatch that finds 
the highest priority irq in (almost) constant time.  It needs one block 
of defines to identify the 8 sources and another block to set the 
priorities.

Thanks,

Chris Rhodin