return pcidev->irq;
}
+static struct iosapic_info *iosapic_list;
+
+#ifdef CONFIG_64BIT
+int iosapic_serial_irq(struct parisc_device *dev)
+{
+ struct iosapic_info *isi;
+ struct irt_entry *irte;
+ struct vector_info *vi;
+ int cnt;
+ int intin;
+
+ intin = (dev->mod_info >> 24) & 15;
+
+ /* lookup IRT entry for isi/slot/pin set */
+ for (cnt = 0; cnt < irt_num_entry; cnt++) {
+ irte = &irt_cell[cnt];
+ if (COMPARE_IRTE_ADDR(irte, dev->mod0) &&
+ irte->dest_iosapic_intin == intin)
+ break;
+ }
+ if (cnt >= irt_num_entry)
+ return 0; /* no irq found, force polling */
+
+ DBG_IRT("iosapic_serial_irq(): irte %p %x %x %x %x %x %x %x %x\n",
+ irte,
+ irte->entry_type,
+ irte->entry_length,
+ irte->polarity_trigger,
+ irte->src_bus_irq_devno,
+ irte->src_bus_id,
+ irte->src_seg_id,
+ irte->dest_iosapic_intin,
+ (u32) irte->dest_iosapic_addr);
+
+ /* search for iosapic */
+ for (isi = iosapic_list; isi; isi = isi->isi_next)
+ if (isi->isi_hpa == dev->mod0)
+ break;
+ if (!isi)
+ return 0; /* no iosapic found, force polling */
+
+ /* get vector info for this input line */
+ vi = isi->isi_vector + intin;
+ DBG_IRT("iosapic_serial_irq: line %d vi 0x%p\n", iosapic_intin, vi);
+
+ /* If this IRQ line has already been setup, skip it */
+ if (vi->irte)
+ goto out;
+
+ vi->irte = irte;
+
+ /*
+ * Allocate processor IRQ
+ *
+ * XXX/FIXME The txn_alloc_irq() code and related code should be
+ * moved to enable_irq(). That way we only allocate processor IRQ
+ * bits for devices that actually have drivers claiming them.
+ * Right now we assign an IRQ to every PCI device present,
+ * regardless of whether it's used or not.
+ */
+ vi->txn_irq = txn_alloc_irq(8);
+
+ if (vi->txn_irq < 0)
+ panic("I/O sapic: couldn't get TXN IRQ\n");
+
+ /* enable_irq() will use txn_* to program IRdT */
+ vi->txn_addr = txn_alloc_addr(vi->txn_irq);
+ vi->txn_data = txn_alloc_data(vi->txn_irq);
+
+ vi->eoi_addr = isi->addr + IOSAPIC_REG_EOI;
+ vi->eoi_data = cpu_to_le32(vi->txn_data);
+
+ cpu_claim_irq(vi->txn_irq, &iosapic_interrupt_type, vi);
+
+ out:
+
+ return vi->txn_irq;
+}
+#endif
+
/*
** squirrel away the I/O Sapic Version
vip->irqline = (unsigned char) cnt;
vip->iosapic = isi;
}
+ isi->isi_next = iosapic_list;
+ iosapic_list = isi;
return isi;
}