git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| e46cdb66 JF |
1 | #ifndef _XEN_EVENTS_H |
| 2 | #define _XEN_EVENTS_H | |
| 3 | ||
| f87e4cac JF |
4 | #include <linux/interrupt.h> |
| 5 | ||
| 6 | #include <xen/interface/event_channel.h> | |
| 7 | #include <asm/xen/hypercall.h> | |
| e849c3e9 | 8 | #include <asm/xen/events.h> |
| e46cdb66 | 9 | |
| b536b4b9 | 10 | int bind_evtchn_to_irq(unsigned int evtchn); |
| e46cdb66 | 11 | int bind_evtchn_to_irqhandler(unsigned int evtchn, |
| f87e4cac | 12 | irq_handler_t handler, |
| e46cdb66 JF |
13 | unsigned long irqflags, const char *devname, |
| 14 | void *dev_id); | |
| 15 | int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, | |
| f87e4cac JF |
16 | irq_handler_t handler, |
| 17 | unsigned long irqflags, const char *devname, | |
| 18 | void *dev_id); | |
| 19 | int bind_ipi_to_irqhandler(enum ipi_vector ipi, | |
| 20 | unsigned int cpu, | |
| 21 | irq_handler_t handler, | |
| 22 | unsigned long irqflags, | |
| 23 | const char *devname, | |
| 24 | void *dev_id); | |
| e46cdb66 JF |
25 | |
| 26 | /* | |
| 27 | * Common unbind function for all event sources. Takes IRQ to unbind from. | |
| 28 | * Automatically closes the underlying event channel (even for bindings | |
| 29 | * made with bind_evtchn_to_irqhandler()). | |
| 30 | */ | |
| 31 | void unbind_from_irqhandler(unsigned int irq, void *dev_id); | |
| 32 | ||
| f87e4cac | 33 | void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector); |
| 642e0c88 | 34 | int resend_irq_on_evtchn(unsigned int irq); |
| eb1e305f | 35 | void rebind_evtchn_irq(int evtchn, int irq); |
| f87e4cac | 36 | |
| e46cdb66 JF |
37 | static inline void notify_remote_via_evtchn(int port) |
| 38 | { | |
| 39 | struct evtchn_send send = { .port = port }; | |
| 40 | (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send); | |
| 41 | } | |
| 42 | ||
| 43 | extern void notify_remote_via_irq(int irq); | |
| 0e91398f JF |
44 | |
| 45 | extern void xen_irq_resume(void); | |
| 46 | ||
| 2d9e1e2f JF |
47 | /* Clear an irq's pending state, in preparation for polling on it */ |
| 48 | void xen_clear_irq_pending(int irq); | |
| 168d2f46 JF |
49 | void xen_set_irq_pending(int irq); |
| 50 | bool xen_test_irq_pending(int irq); | |
| 2d9e1e2f JF |
51 | |
| 52 | /* Poll waiting for an irq to become pending. In the usual case, the | |
| 53 | irq will be disabled so it won't deliver an interrupt. */ | |
| 54 | void xen_poll_irq(int irq); | |
| 55 | ||
| d4c04536 IC |
56 | /* Determine the IRQ which is bound to an event channel */ |
| 57 | unsigned irq_from_evtchn(unsigned int evtchn); | |
| 58 | ||
| 38e20b07 SY |
59 | /* Xen HVM evtchn vector callback */ |
| 60 | extern void xen_hvm_callback_vector(void); | |
| 61 | extern int xen_have_vector_callback; | |
| 62 | int xen_set_callback_via(uint64_t via); | |
| 63 | void xen_evtchn_do_upcall(struct pt_regs *regs); | |
| 64 | void xen_hvm_evtchn_do_upcall(void); | |
| 65 | ||
| e46cdb66 | 66 | #endif /* _XEN_EVENTS_H */ |