int xics_alloc(XICSState *icp, int src, int irq_hint, bool lsi, Error **errp)
{
ICSState *ics = &icp->ics[src];
int irq;
if (irq_hint) {
assert(src == xics_find_source(icp, irq_hint));
if (!ICS_IRQ_FREE(ics, irq_hint - ics->offset)) {
error_setg(errp, "can't allocate IRQ %d: already in use", irq_hint);
return -1;
}
irq = irq_hint;
} else {
irq = ics_find_free_block(ics, 1, 1);
if (irq < 0) {
error_setg(errp, "can't allocate IRQ: no IRQ left");
return -1;
}
irq += ics->offset;
}
ics_set_irq_type(ics, irq - ics->offset, lsi);
trace_xics_alloc(src, irq);
return irq;
}
int xics_alloc(XICSState *icp, int src, int irq_hint, bool lsi)
{
ICSState *ics = &icp->ics[src];
int irq;
if (irq_hint) {
assert(src == xics_find_source(icp, irq_hint));
if (!ICS_IRQ_FREE(ics, irq_hint - ics->offset)) {
trace_xics_alloc_failed_hint(src, irq_hint);
return -1;
}
irq = irq_hint;
} else {
irq = ics_find_free_block(ics, 1, 1);
if (irq < 0) {
trace_xics_alloc_failed_no_left(src);
return -1;
}
irq += ics->offset;
}
ics_set_irq_type(ics, irq - ics->offset, lsi);
trace_xics_alloc(src, irq);
return irq;
}
void xics_set_irq_type(XICSState *icp, int irq, bool lsi)
{
int src = xics_find_source(icp, irq);
ICSState *ics;
assert(src >= 0);
ics = &icp->ics[src];
ics_set_irq_type(ics, irq - ics->offset, lsi);
}
qemu_irq xics_get_qirq(XICSState *icp, int irq)
{
int src = xics_find_source(icp, irq);
if (src >= 0) {
ICSState *ics = &icp->ics[src];
return ics->qirqs[irq - ics->offset];
}
return NULL;
}
void xics_free(XICSState *icp, int irq, int num)
{
int src = xics_find_source(icp, irq);
if (src >= 0) {
ICSState *ics = &icp->ics[src];
/* FIXME: implement multiple sources */
assert(src == 0);
trace_xics_ics_free(ics - icp->ics, irq, num);
ics_free(ics, irq - ics->offset, num);
}
}