From ab9a1cca3d172876ae9d5edb63abce7986045597 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 14 Mar 2013 12:49:19 +0000 Subject: xen/events: add struct evtchn_ops for the low-level port operations evtchn_ops contains the low-level operations that access the shared data structures. This allows alternate ABIs to be supported. Signed-off-by: David Vrabel Reviewed-by: Konrad Rzeszutek Wilk Reviewed-by: Boris Ostrovsky --- drivers/xen/events/events_internal.h | 63 +++++++++++++++++++++++++++++++----- 1 file changed, 55 insertions(+), 8 deletions(-) (limited to 'drivers/xen/events/events_internal.h') diff --git a/drivers/xen/events/events_internal.h b/drivers/xen/events/events_internal.h index 79ac70bbbd26..ba8142f0c635 100644 --- a/drivers/xen/events/events_internal.h +++ b/drivers/xen/events/events_internal.h @@ -54,21 +54,68 @@ struct irq_info { #define PIRQ_NEEDS_EOI (1 << 0) #define PIRQ_SHAREABLE (1 << 1) +struct evtchn_ops { + void (*bind_to_cpu)(struct irq_info *info, unsigned cpu); + + void (*clear_pending)(unsigned port); + void (*set_pending)(unsigned port); + bool (*is_pending)(unsigned port); + bool (*test_and_set_mask)(unsigned port); + void (*mask)(unsigned port); + void (*unmask)(unsigned port); + + void (*handle_events)(unsigned cpu); +}; + +extern const struct evtchn_ops *evtchn_ops; + extern int *evtchn_to_irq; struct irq_info *info_for_irq(unsigned irq); unsigned cpu_from_irq(unsigned irq); unsigned cpu_from_evtchn(unsigned int evtchn); -void xen_evtchn_port_bind_to_cpu(struct irq_info *info, int cpu); +static inline void xen_evtchn_port_bind_to_cpu(struct irq_info *info, + unsigned cpu) +{ + evtchn_ops->bind_to_cpu(info, cpu); +} + +static inline void clear_evtchn(unsigned port) +{ + evtchn_ops->clear_pending(port); +} + +static inline void set_evtchn(unsigned port) +{ + evtchn_ops->set_pending(port); +} + +static inline bool test_evtchn(unsigned port) +{ + return evtchn_ops->is_pending(port); +} + +static inline bool test_and_set_mask(unsigned port) +{ + return evtchn_ops->test_and_set_mask(port); +} + +static inline void mask_evtchn(unsigned port) +{ + return evtchn_ops->mask(port); +} + +static inline void unmask_evtchn(unsigned port) +{ + return evtchn_ops->unmask(port); +} -void clear_evtchn(int port); -void set_evtchn(int port); -int test_evtchn(int port); -int test_and_set_mask(int port); -void mask_evtchn(int port); -void unmask_evtchn(int port); +static inline void xen_evtchn_handle_events(unsigned cpu) +{ + return evtchn_ops->handle_events(cpu); +} -void xen_evtchn_handle_events(int cpu); +void xen_evtchn_2l_init(void); #endif /* #ifndef __EVENTS_INTERNAL_H__ */ -- cgit v1.2.3