xen: SMP guest support
[linux-2.6.git] / include / xen / events.h
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_irqhandler(unsigned int evtchn,
17                               irq_handler_t handler,
18                               unsigned long irqflags, const char *devname,
19                               void *dev_id);
20 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
21                             irq_handler_t handler,
22                             unsigned long irqflags, const char *devname,
23                             void *dev_id);
24 int bind_ipi_to_irqhandler(enum ipi_vector ipi,
25                            unsigned int cpu,
26                            irq_handler_t handler,
27                            unsigned long irqflags,
28                            const char *devname,
29                            void *dev_id);
30
31 /*
32  * Common unbind function for all event sources. Takes IRQ to unbind from.
33  * Automatically closes the underlying event channel (even for bindings
34  * made with bind_evtchn_to_irqhandler()).
35  */
36 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
37
38 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
39
40 static inline void notify_remote_via_evtchn(int port)
41 {
42         struct evtchn_send send = { .port = port };
43         (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
44 }
45
46 extern void notify_remote_via_irq(int irq);
47 #endif  /* _XEN_EVENTS_H */