RFC: i8259.c & PCI int ack

Michael Sokolov msokolov at ivan.Harhan.ORG
Tue Dec 4 09:37:56 EST 2001

hollis at austin.ibm.com wrote:

> - i8259_init now takes a 'long intack_addr', which on PReP is 0xbffffff0.
>   For platforms that only poll, this argument is irrelevant and can be 0x0
> [...]
> If this is the right idea, I intend to change all 8259 users:
> - ppc_md.get_irq = i8259_irq       ->   ppc_md.get_irq = i8259_poll
> - i8259_init()                     ->   i8259_init(0x0)
> - i8259_irq(smp_processor_id())    ->   i8259_poll()

With this patch on platforms that only poll, your code will still do an ioremap
on i8259_init's argument, even if it's 0. I'm not sure that is good.


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