Commit d4c04536 authored Feb 06, 2009 by Ian Campbell Committed by Jeremy Fitzhardinge Mar 30, 2009

xen: add irq_from_evtchn



Given an evtchn, return the corresponding irq.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

parent 6d02c426

drivers/xen/events.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -151,6 +151,12 @@ static unsigned int evtchn_from_irq(unsigned irq)
		return info_for_irq(irq)->evtchn;
		}

		unsigned irq_from_evtchn(unsigned int evtchn)
		{
		return evtchn_to_irq[evtchn];
		}
		EXPORT_SYMBOL_GPL(irq_from_evtchn);

		static enum ipi_vector ipi_from_irq(unsigned irq)
		{
		struct irq_info *info = info_for_irq(irq);

include/xen/events.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -53,4 +53,7 @@ bool xen_test_irq_pending(int irq);
		irq will be disabled so it won't deliver an interrupt. */
		void xen_poll_irq(int irq);

		/* Determine the IRQ which is bound to an event channel */
		unsigned irq_from_evtchn(unsigned int evtchn);

		#endif /* _XEN_EVENTS_H */