generic irq handler and stack?

[Russell King - ARM Linux]

On Tue, Dec 07, 2010 at 11:29:26AM +0100, Tim Sander wrote:
> The interrupt handling on the i.mx35x seems to handle only one interrupt at a 
> time. This generates larger then nessecary interrupt jitter. I am currently 
> investigating to reprogram the AVIC to enable higher priority interrupts to 
> interrupt lower priority interrupts. The mechanism is outlined in section 
> 13,3.8 of the IMX35 Reference Manual.

The kernel now runs _all_ interrupts with IRQs masked on the CPU.  See
e58aa3d2d0cc01ad8d6f7f640a0670433f794922.