Re: irq cleanup
From: Dan Malek <hidden>
Date: 1999-01-05 05:33:15
Cort Dougan wrote:
Right, that's the plan. }To support PCI or ISA devices that interrupt on the MBX }you would need to modify irq.c to support a multilevel interrupt }scheme. The 8259 would interrupt on one of the 8xx interrupt }controller levels, then you would have to process all 8259 }interrupts.
Are there other systems designed like this with a multilevel
interrupt controller? It's not hard to imagine, although I have
never seen one before the MBX. This is one reason I didn't
spend any effort when I did the iniitial port. It seemed like
lots of work for a single board not likely to use them
-- Dan
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