On Mon, 2006-11-20 at 17:56 +0100, Ingo Molnar wrote: > * Sergei Shtylyov <[email protected]> wrote: > > > >on PPC64, 'get the vector' initiates an ACK as well - is that done > > >before handle_irq() is done? > > > > Exactly. How else do_IRQ() would know the vector? > > the reason i'm asking is that in this case masking is a bit late at this > point and there's a chance for a repeat interrupt. What do you mean by a bit late ? You can't mask before you know what interrupt occured so you don't really have a choice there :-) I'm pretty sure that mask + eoi is what Apple does on Darwin too though. Cheers, Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- References:
- [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers
- From: Sergei Shtylyov <[email protected]>
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