1 #ifndef _XEN_EVENTS_H
2 #define _XEN_EVENTS_H
3
4 #include <linux/interrupt.h>
5
6 #include <xen/interface/event_channel.h>
7 #include <asm/xen/hypercall.h>
8
9 enum ipi_vector {
10 XEN_RESCHEDULE_VECTOR,
11 XEN_CALL_FUNCTION_VECTOR,
12
13 XEN_NR_IPIS,
14 };
15
16 int bind_evtchn_to_irq(unsigned int evtchn);
17 int bind_evtchn_to_irqhandler(unsigned int evtchn,
18 irq_handler_t handler,
19 unsigned long irqflags, const char *devname,
20 void *dev_id);
21 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
22 irq_handler_t handler,
23 unsigned long irqflags, const char *devname,
24 void *dev_id);
25 int bind_ipi_to_irqhandler(enum ipi_vector ipi,
26 unsigned int cpu,
27 irq_handler_t handler,
28 unsigned long irqflags,
29 const char *devname,
30 void *dev_id);
31
32 /*
33 * Common unbind function for all event sources. Takes IRQ to unbind from.
34 * Automatically closes the underlying event channel (even for bindings
35 * made with bind_evtchn_to_irqhandler()).
36 */
37 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
38
39 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
40
41 static inline void notify_remote_via_evtchn(int port)
42 {
43 struct evtchn_send send = { .port = port };
44 (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
45 }
46
47 extern void notify_remote_via_irq(int irq);
48 #endif /* _XEN_EVENTS_H */
49
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