1e46cdb66SJeremy Fitzhardinge #ifndef _XEN_EVENTS_H 2e46cdb66SJeremy Fitzhardinge #define _XEN_EVENTS_H 3e46cdb66SJeremy Fitzhardinge 4f87e4cacSJeremy Fitzhardinge #include <linux/interrupt.h> 5f87e4cacSJeremy Fitzhardinge 6f87e4cacSJeremy Fitzhardinge #include <xen/interface/event_channel.h> 7f87e4cacSJeremy Fitzhardinge #include <asm/xen/hypercall.h> 8f87e4cacSJeremy Fitzhardinge 9f87e4cacSJeremy Fitzhardinge enum ipi_vector { 10f87e4cacSJeremy Fitzhardinge XEN_RESCHEDULE_VECTOR, 11f87e4cacSJeremy Fitzhardinge XEN_CALL_FUNCTION_VECTOR, 12f87e4cacSJeremy Fitzhardinge 13f87e4cacSJeremy Fitzhardinge XEN_NR_IPIS, 14f87e4cacSJeremy Fitzhardinge }; 15e46cdb66SJeremy Fitzhardinge 16e46cdb66SJeremy Fitzhardinge int bind_evtchn_to_irqhandler(unsigned int evtchn, 17f87e4cacSJeremy Fitzhardinge irq_handler_t handler, 18e46cdb66SJeremy Fitzhardinge unsigned long irqflags, const char *devname, 19e46cdb66SJeremy Fitzhardinge void *dev_id); 20e46cdb66SJeremy Fitzhardinge int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, 21f87e4cacSJeremy Fitzhardinge irq_handler_t handler, 22f87e4cacSJeremy Fitzhardinge unsigned long irqflags, const char *devname, 23f87e4cacSJeremy Fitzhardinge void *dev_id); 24f87e4cacSJeremy Fitzhardinge int bind_ipi_to_irqhandler(enum ipi_vector ipi, 25f87e4cacSJeremy Fitzhardinge unsigned int cpu, 26f87e4cacSJeremy Fitzhardinge irq_handler_t handler, 27f87e4cacSJeremy Fitzhardinge unsigned long irqflags, 28f87e4cacSJeremy Fitzhardinge const char *devname, 29f87e4cacSJeremy Fitzhardinge void *dev_id); 30e46cdb66SJeremy Fitzhardinge 31e46cdb66SJeremy Fitzhardinge /* 32e46cdb66SJeremy Fitzhardinge * Common unbind function for all event sources. Takes IRQ to unbind from. 33e46cdb66SJeremy Fitzhardinge * Automatically closes the underlying event channel (even for bindings 34e46cdb66SJeremy Fitzhardinge * made with bind_evtchn_to_irqhandler()). 35e46cdb66SJeremy Fitzhardinge */ 36e46cdb66SJeremy Fitzhardinge void unbind_from_irqhandler(unsigned int irq, void *dev_id); 37e46cdb66SJeremy Fitzhardinge 38f87e4cacSJeremy Fitzhardinge void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector); 39f87e4cacSJeremy Fitzhardinge 40e46cdb66SJeremy Fitzhardinge static inline void notify_remote_via_evtchn(int port) 41e46cdb66SJeremy Fitzhardinge { 42e46cdb66SJeremy Fitzhardinge struct evtchn_send send = { .port = port }; 43e46cdb66SJeremy Fitzhardinge (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send); 44e46cdb66SJeremy Fitzhardinge } 45e46cdb66SJeremy Fitzhardinge 46e46cdb66SJeremy Fitzhardinge extern void notify_remote_via_irq(int irq); 47e46cdb66SJeremy Fitzhardinge #endif /* _XEN_EVENTS_H */ 48