On Fri, Jan 26, 2007 at 09:57:48AM +0100, Segher Boessenkool wrote:

quoted

quoted

You code appears to be nice simple clean and to not support MSI in
a useful way.  I may be reading too quickly but at the moment your
infrastructure appears useless if you are on a platform that doesn't
enforce MSI's get filtered with a legacy interrupt controller.

Hrm?
Isn't the point of MSI to avoid any sort of interrupt controller?

No, the point of MSI is that it travels in the normal data
stream (and stays ordered with it).  In the end it *has* to
touch an interrupt controller (maybe the CPU-internal one).

Yes, sorry. I thinking about the properties of a "legacy interrupt
controller" and didn't intend that to mean the physical device:
    out-of-band delivery
    each IRQ line routed to one CPU on the motherboard,
    one IRQ line per device.

thanks,
grant