Messages in this thread | | | Subject | Re: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers | From | Benjamin Herrenschmidt <> | Date | Mon, 20 Nov 2006 07:19:50 +1100 |
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On Sun, 2006-11-19 at 21:06 +0100, Ingo Molnar wrote: > * Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote: > > > Wait wait wait .... Can somebody (Ingo ?) explain me why the fasteoi > > handler is being changed and what is the rationale for adding an ack > > that was not necessary before ? > > dont worry, it's -rt only stuff.
Still, I'm curious :-) Besides, there have been people talking about having -rt work on ppc64 so ...
What do you need an ack() for on fasteoi ? On all fasteoi controllers I have, ack is implicit by obtaining the vector number and all there is is an eoi...
Cheers, Ben.
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