xen: use the hvc console infrastructure for Xen console
[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_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 */