70  * IRQ			1
73  * IRQ			1
245 		 * Only use the current value if there's one IRQ.  Some  in link_add_crs()
250 			if (res->Data.Irq.InterruptCount == 1)  in link_add_crs()
251 				link->l_irq = res->Data.Irq.Interrupts[0];  in link_add_crs()
256 		 * An IRQ of zero means that the link isn't routed.  in link_add_crs()
343 			bcopy(res, tmp, ACPI_RS_SIZE(tmp->Data.Irq));  in link_add_prs()
344 			link->l_num_irqs = res->Data.Irq.InterruptCount;  in link_add_prs()
345 			irqs = res->Data.Irq.Interrupts;  in link_add_prs()
371 		 * If this is not an ISA IRQ but _CRS used a non-extended  in link_add_prs()
372 		 * IRQ descriptor, don't use _CRS as a template for _SRS.  in link_add_prs()
391 link_valid_irq(struct link *link, int irq)  in link_valid_irq()  argument
398 	if (!PCI_INTERRUPT_VALID(irq))  in link_valid_irq()
403 		if (link->l_irqs[i] == irq)  in link_valid_irq()
408 	 * an ISA interrupt, the SCI is always treated as a valid IRQ.  in link_valid_irq()
410 	if (link->l_isa_irq && AcpiGbl_FADT.SciInterrupt == irq &&  in link_valid_irq()
411 	    irq < NUM_ISA_INTERRUPTS)  in link_valid_irq()
429 		printf("%-16.16s  Index  IRQ  Rtd  Ref  IRQs\n", buf);  in acpi_pci_link_dump()
546 	 * Try to disable this link.  If successful, set the current IRQ to  in acpi_pci_link_attach()
549 	 * IRQ was routed by the BIOS.  in acpi_pci_link_attach()
674 	 * (8259As).  Thus, if this link is routed via an ISA IRQ, go  in acpi_pci_link_add_reference()
675 	 * look to see if the BIOS routed an IRQ for this link at the  in acpi_pci_link_add_reference()
676 	 * indicated (domain, bus, slot, pin).  If so, we prefer that IRQ for  in acpi_pci_link_add_reference()
677 	 * this link and add that IRQ to our list of known-good IRQs.  in acpi_pci_link_add_reference()
680 	 * returned by _CRS if we can't find a valid IRQ via this method  in acpi_pci_link_add_reference()
683 	 * If this link is not routed via an ISA IRQ (because we are using  in acpi_pci_link_add_reference()
684 	 * APIC for example), then don't bother looking up the BIOS IRQ  in acpi_pci_link_add_reference()
692 	/* Try to find a BIOS IRQ setting from any matching devices. */  in acpi_pci_link_add_reference()
699 	/* Validate the BIOS IRQ. */  in acpi_pci_link_add_reference()
701 		device_printf(dev, "BIOS IRQ %u for %d.%d.INT%c is invalid\n",  in acpi_pci_link_add_reference()
710 			    "BIOS IRQ %u does not match initial IRQ %u\n",  in acpi_pci_link_add_reference()
714 	    "BIOS IRQ %u for %d.%d.INT%c does not match previous BIOS IRQ %u\n",  in acpi_pci_link_add_reference()
743 	/* Fill in IRQ resources via link structures. */  in acpi_pci_link_srs_from_crs()
773 			res->Data.Irq.InterruptCount = 1;  in acpi_pci_link_srs_from_crs()
776 		("%s: can't put non-ISA IRQ %d in legacy IRQ resource type",  in acpi_pci_link_srs_from_crs()
778 				res->Data.Irq.Interrupts[0] = link->l_irq;  in acpi_pci_link_srs_from_crs()
780 				res->Data.Irq.Interrupts[0] = 0;  in acpi_pci_link_srs_from_crs()
818 		/* Add a new IRQ resource from each link. */  in acpi_pci_link_srs_from_links()
821 			/* Build an IRQ resource. */  in acpi_pci_link_srs_from_links()
823 			    ACPI_RS_SIZE(newres.Data.Irq));  in acpi_pci_link_srs_from_links()
824 			newres.Data.Irq.InterruptCount = 1;  in acpi_pci_link_srs_from_links()
827 		("%s: can't put non-ISA IRQ %d in legacy IRQ resource type",  in acpi_pci_link_srs_from_links()
829 				newres.Data.Irq.Interrupts[0] = link->l_irq;  in acpi_pci_link_srs_from_links()
831 				newres.Data.Irq.Interrupts[0] = 0;  in acpi_pci_link_srs_from_links()
889 	 * Perform acpi_config_intr() on each IRQ resource if it was just  in acpi_pci_link_route_irqs()
906 			 * weights if this link has a valid IRQ and was  in acpi_pci_link_route_irqs()
959  * Pick an IRQ to use for this unrouted link.
970 	    ("%s: link already has an IRQ", __func__));  in acpi_pci_link_choose_irq()
976 		    "hw.pci.link.%s.%d.irq", link_name, link->l_res_index);  in acpi_pci_link_choose_irq()
980 				    "Warning, IRQ %d is not listed as valid\n",  in acpi_pci_link_choose_irq()
985 		    "hw.pci.link.%s.irq", link_name);  in acpi_pci_link_choose_irq()
989 				    "Warning, IRQ %d is not listed as valid\n",  in acpi_pci_link_choose_irq()
996 	 * If we have a valid BIOS IRQ, use that.  We trust what the BIOS  in acpi_pci_link_choose_irq()
1003 	 * If we don't have a BIOS IRQ but do have a valid IRQ from _CRS,  in acpi_pci_link_choose_irq()
1029 	 * If this is an ISA IRQ, try using the SCI if it is also an ISA  in acpi_pci_link_choose_irq()
1043 			device_printf(dev, "Picked IRQ %u with weight %d\n",  in acpi_pci_link_choose_irq()
1046 		device_printf(dev, "Unable to choose an IRQ\n");  in acpi_pci_link_choose_irq()
1069 		    ("%s: link is routed but has an invalid IRQ", __func__));  in acpi_pci_link_route_interrupt()
1074 	/* Choose an IRQ if we need one. */  in acpi_pci_link_route_interrupt()
1102 	 * If the SCI is an ISA IRQ, add it to the bitmask of known good  in acpi_pci_link_identify()