Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-07 21:53:44 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

xen: add irq_from_evtchn

Browse Source 
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>
This commit is contained in:
Ian Campbell 2009-02-06 19:20:31 -08:00 committed by Jeremy Fitzhardinge
parent 6d02c42698
commit d4c045364d
2 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/xen/events.c
View File

@ -151,6 +151,12 @@ static unsigned int evtchn_from_irq(unsigned irq)
return info_for_irq(irq)->evtchn; 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) static enum ipi_vector ipi_from_irq(unsigned irq)
{ {
struct irq_info *info = info_for_irq(irq); struct irq_info *info = info_for_irq(irq);

3
include/xen/events.h
View File

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