include/xen/events.h

   1 #ifndef _XEN_EVENTS_H
   2 #define _XEN_EVENTS_H
   3
   4 #include <linux/irq.h>
   5
   6 int bind_evtchn_to_irqhandler(unsigned int evtchn,
   7                               irqreturn_t (*handler)(int, void *),
   8                               unsigned long irqflags, const char *devname,
   9                               void *dev_id);
  10 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
  11                             irqreturn_t (*handler)(int, void *),
  12                             unsigned long irqflags, const char *devname, void *dev_id);
  13
  14 /*
  15  * Common unbind function for all event sources. Takes IRQ to unbind from.
  16  * Automatically closes the underlying event channel (even for bindings
  17  * made with bind_evtchn_to_irqhandler()).
  18  */
  19 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
  20
  21 static inline void notify_remote_via_evtchn(int port)
  22 {
  23         struct evtchn_send send = { .port = port };
  24         (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
  25 }
  26
  27 extern void notify_remote_via_irq(int irq);
  28 #endif  /* _XEN_EVENTS_H */