Messages in this thread | | | Subject | Re: SMP in 2.4 | Date | Sat, 21 Apr 2001 10:50:23 +0100 (BST) | From | Alan Cox <> |
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> > especially if you want to do it right on the BX. But you can do this and rtlinux > > does > > There is already desc->handler->ack(irq) in do_IRQ which does that. Is any > more special handling needed?
You need to keep the IRQ line masked not just ack it. The code for handling all the BX and other cases is there but its a bit more than 3 clock cycles long
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