/*
* Currently this uses the really grody interface from kern/kern_intr.c
* (which really doesn't belong in kern/anything.c). Eventually, all of
* the code in kern_intr.c and machdep_intr.c should get moved here, since
* this is going to be the official interface.
*/
static int
nexus_setup_intr(device_t bus, device_t child, struct resource *irq,
int flags, driver_filter_t filter, void (*ihand)(void *),
void *arg, void **cookiep)
{
int error;
/* somebody tried to setup an irq that failed to allocate! */
if (irq == NULL)
panic("nexus_setup_intr: NULL irq resource!");
*cookiep = 0;
if ((rman_get_flags(irq) & RF_SHAREABLE) == 0)
flags |= INTR_EXCL;
/*
* We depend here on rman_activate_resource() being idempotent.
*/
error = rman_activate_resource(irq);
if (error)
return (error);
error = intr_add_handler(device_get_nameunit(child),
rman_get_start(irq), filter, ihand, arg, flags, cookiep);
return (error);
}
int
bind_ipi_to_irqhandler(unsigned int ipi, unsigned int cpu,
const char *devname, driver_filter_t filter,
unsigned long irqflags, unsigned int *irqp)
{
unsigned int irq;
int error;
irq = bind_ipi_to_irq(ipi, cpu);
intr_register_source(&xp->xp_pins[irq].xp_intsrc);
error = intr_add_handler(devname, irq, filter, NULL,
NULL, irqflags, &xp->xp_pins[irq].xp_cookie);
if (error) {
unbind_from_irq(irq);
return (error);
}
if (irqp)
*irqp = irq;
return (0);
}
int
bind_listening_port_to_irqhandler(unsigned int remote_domain,
const char *devname, driver_intr_t handler, void *arg,
unsigned long irqflags, unsigned int *irqp)
{
unsigned int irq;
int error;
irq = bind_listening_port_to_irq(remote_domain);
intr_register_source(&xp->xp_pins[irq].xp_intsrc);
error = intr_add_handler(devname, irq, NULL, handler, arg, irqflags,
&xp->xp_pins[irq].xp_cookie);
if (error) {
unbind_from_irq(irq);
return (error);
}
if (irqp)
*irqp = irq;
return (0);
}
int
bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
unsigned int remote_port, const char *devname,
driver_filter_t filter, driver_intr_t handler,
unsigned long irqflags, unsigned int *irqp)
{
unsigned int irq;
int error;
irq = bind_interdomain_evtchn_to_irq(remote_domain, remote_port);
intr_register_source(&xp->xp_pins[irq].xp_intsrc);
error = intr_add_handler(devname, irq, filter, handler, NULL,
irqflags, &xp->xp_pins[irq].xp_cookie);
if (error) {
unbind_from_irq(irq);
return (error);
}
if (irqp)
*irqp = irq;
return (0);
}
int
bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
const char *devname, driver_filter_t filter, driver_intr_t handler,
void *arg, unsigned long irqflags, unsigned int *irqp)
{
unsigned int irq;
int port = -1;
int error;
irq = bind_virq_to_irq(virq, cpu, &port);
intr_register_source(&xp->xp_pins[irq].xp_intsrc);
error = intr_add_handler(devname, irq, filter, handler,
arg, irqflags, &xp->xp_pins[irq].xp_cookie);
if (error) {
unbind_from_irq(irq);
return (error);
}
if (port != -1)
unmask_evtchn(port);
if (irqp)
*irqp = irq;
return (0);
}
