~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/xen/events.h

Version: ~ [ linux-5.10-rc1 ] ~ [ linux-5.9.1 ] ~ [ linux-5.8.16 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.72 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.152 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.202 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.240 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.240 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 #include <asm/xen/events.h>
  9 
 10 int bind_evtchn_to_irq(unsigned int evtchn);
 11 int bind_evtchn_to_irqhandler(unsigned int evtchn,
 12                               irq_handler_t handler,
 13                               unsigned long irqflags, const char *devname,
 14                               void *dev_id);
 15 int bind_virq_to_irq(unsigned int virq, unsigned int cpu);
 16 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
 17                             irq_handler_t handler,
 18                             unsigned long irqflags, const char *devname,
 19                             void *dev_id);
 20 int bind_ipi_to_irqhandler(enum ipi_vector ipi,
 21                            unsigned int cpu,
 22                            irq_handler_t handler,
 23                            unsigned long irqflags,
 24                            const char *devname,
 25                            void *dev_id);
 26 int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
 27                                           unsigned int remote_port,
 28                                           irq_handler_t handler,
 29                                           unsigned long irqflags,
 30                                           const char *devname,
 31                                           void *dev_id);
 32 
 33 /*
 34  * Common unbind function for all event sources. Takes IRQ to unbind from.
 35  * Automatically closes the underlying event channel (even for bindings
 36  * made with bind_evtchn_to_irqhandler()).
 37  */
 38 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
 39 
 40 /*
 41  * Allow extra references to event channels exposed to userspace by evtchn
 42  */
 43 int evtchn_make_refcounted(unsigned int evtchn);
 44 int evtchn_get(unsigned int evtchn);
 45 void evtchn_put(unsigned int evtchn);
 46 
 47 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
 48 int resend_irq_on_evtchn(unsigned int irq);
 49 void rebind_evtchn_irq(int evtchn, int irq);
 50 
 51 static inline void notify_remote_via_evtchn(int port)
 52 {
 53         struct evtchn_send send = { .port = port };
 54         (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
 55 }
 56 
 57 void notify_remote_via_irq(int irq);
 58 
 59 void xen_irq_resume(void);
 60 
 61 /* Clear an irq's pending state, in preparation for polling on it */
 62 void xen_clear_irq_pending(int irq);
 63 void xen_set_irq_pending(int irq);
 64 bool xen_test_irq_pending(int irq);
 65 
 66 /* Poll waiting for an irq to become pending.  In the usual case, the
 67    irq will be disabled so it won't deliver an interrupt. */
 68 void xen_poll_irq(int irq);
 69 
 70 /* Poll waiting for an irq to become pending with a timeout.  In the usual case,
 71  * the irq will be disabled so it won't deliver an interrupt. */
 72 void xen_poll_irq_timeout(int irq, u64 timeout);
 73 
 74 /* Determine the IRQ which is bound to an event channel */
 75 unsigned irq_from_evtchn(unsigned int evtchn);
 76 
 77 /* Xen HVM evtchn vector callback */
 78 void xen_hvm_callback_vector(void);
 79 extern int xen_have_vector_callback;
 80 int xen_set_callback_via(uint64_t via);
 81 void xen_evtchn_do_upcall(struct pt_regs *regs);
 82 void xen_hvm_evtchn_do_upcall(void);
 83 
 84 /* Bind a pirq for a physical interrupt to an irq. */
 85 int xen_bind_pirq_gsi_to_irq(unsigned gsi,
 86                              unsigned pirq, int shareable, char *name);
 87 
 88 #ifdef CONFIG_PCI_MSI
 89 /* Allocate a pirq for a MSI style physical interrupt. */
 90 int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc);
 91 /* Bind an PSI pirq to an irq. */
 92 int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
 93                              int pirq, const char *name, domid_t domid);
 94 #endif
 95 
 96 /* De-allocates the above mentioned physical interrupt. */
 97 int xen_destroy_irq(int irq);
 98 
 99 /* Return irq from pirq */
100 int xen_irq_from_pirq(unsigned pirq);
101 
102 /* Return the pirq allocated to the irq. */
103 int xen_pirq_from_irq(unsigned irq);
104 
105 /* Return the irq allocated to the gsi */
106 int xen_irq_from_gsi(unsigned gsi);
107 
108 /* Determine whether to ignore this IRQ if it is passed to a guest. */
109 int xen_test_irq_shared(int irq);
110 
111 /* initialize Xen IRQ subsystem */
112 void xen_init_IRQ(void);
113 #endif  /* _XEN_EVENTS_H */
114 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp