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xen: Provide a variant of xen_poll_irq with timeout.

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The 'xen_poll_irq_timeout' provides a method to pass in
the poll timeout for IRQs if requested. We also export
those two poll functions as Xen PCI fronted uses them.

Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
This commit is contained in:
Konrad Rzeszutek Wilk 2009-11-05 16:33:09 -05:00
commit d9a8814f27
2 changed files with 16 additions and 5 deletions
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4
include/xen/events.h
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@ -53,6 +53,10 @@ bool xen_test_irq_pending(int irq);
irq will be disabled so it won't deliver an interrupt. */
void xen_poll_irq(int irq);
/* Poll waiting for an irq to become pending with a timeout. In the usual case,
* the irq will be disabled so it won't deliver an interrupt. */
void xen_poll_irq_timeout(int irq, u64 timeout);
/* Determine the IRQ which is bound to an event channel */
unsigned irq_from_evtchn(unsigned int evtchn);