51 	int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq);
52 	int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq,
54 	int (*lvl)(struct pci_dev *router, struct pci_dev *dev, int pirq,
60 	int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
256 static int pirq_finali_get(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_get()  argument
273 static int pirq_finali_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_set()  argument
293 static int pirq_finali_lvl(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_lvl()  argument
315 static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr)  in read_config_nybble()  argument
320 	pci_read_config_byte(router, reg, &x);  in read_config_nybble()
324 static void write_config_nybble(struct pci_dev *router, unsigned offset,  in write_config_nybble()  argument
330 	pci_read_config_byte(router, reg, &x);  in write_config_nybble()
332 	pci_write_config_byte(router, reg, x);  in write_config_nybble()
340 static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ali_get()  argument
345 	return irqmap[read_config_nybble(router, 0x48, pirq-1)];  in pirq_ali_get()
348 static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_ali_set()  argument
355 		write_config_nybble(router, 0x48, pirq-1, val);  in pirq_ali_set()
371  *	with the PIIX router.
393 static int pirq_esc_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_esc_get()  argument
411 static int pirq_esc_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_esc_set()  argument
433 static int pirq_piix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_piix_get()  argument
437 	pci_read_config_byte(router, pirq, &x);  in pirq_piix_get()
441 static int pirq_piix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_piix_set()  argument
443 	pci_write_config_byte(router, pirq, irq);  in pirq_piix_set()
454  *	the same as with the PIIX router.
465 static int pirq_ib_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ib_get()  argument
474 	pci_read_config_byte(router, reg, &x);  in pirq_ib_get()
478 static int pirq_ib_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_ib_set()  argument
487 	pci_write_config_byte(router, reg, irq);  in pirq_ib_set()
496 static int pirq_via_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_via_get()  argument
498 	return read_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq);  in pirq_via_get()
501 static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_via_set()  argument
503 	write_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq, irq);  in pirq_via_set()
512 static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_via586_get()  argument
517 	return read_config_nybble(router, 0x55, pirqmap[pirq-1]);  in pirq_via586_get()
520 static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_via586_set()  argument
525 	write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);  in pirq_via586_set()
534 static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ite_get()  argument
539 	return read_config_nybble(router, 0x43, pirqmap[pirq-1]);  in pirq_ite_get()
542 static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_ite_set()  argument
547 	write_config_nybble(router, 0x43, pirqmap[pirq-1], irq);  in pirq_ite_set()
555 static int pirq_opti_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_opti_get()  argument
557 	return read_config_nybble(router, 0xb8, pirq >> 4);  in pirq_opti_get()
560 static int pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_opti_set()  argument
562 	write_config_nybble(router, 0xb8, pirq >> 4, irq);  in pirq_opti_set()
571 static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_cyrix_get()  argument
573 	return read_config_nybble(router, 0x5C, (pirq-1)^1);  in pirq_cyrix_get()
576 static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_cyrix_set()  argument
578 	write_config_nybble(router, 0x5C, (pirq-1)^1, irq);  in pirq_cyrix_set()
583  *	PIRQ routing for SiS 85C503 router used in several SiS chipsets.
588  *	- different revision of the router have a different layout for
608  *	router (ISA-bridge) should be 0x01 or 0xb0.
616  *	Onchip routing for router rev-id 0x01/0xb0 and probably 0x00/0xb1:
634  *	router revision 0x04 and there are changes in the register layout
637  *	Onchip routing for router rev-id 0x04 (try-and-error observation)
647 static int pirq_sis_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_sis_get()  argument
655 	pci_read_config_byte(router, reg, &x);  in pirq_sis_get()
659 static int pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_sis_set()  argument
667 	pci_read_config_byte(router, reg, &x);  in pirq_sis_set()
670 	pci_write_config_byte(router, reg, x);  in pirq_sis_set()
677  *       config space of VLSI 82C534 PCI-bridge/router (1004:0102)
683 static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_vlsi_get()  argument
687 		dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);  in pirq_vlsi_get()
690 	return read_config_nybble(router, 0x74, pirq-1);  in pirq_vlsi_get()
693 static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_vlsi_set()  argument
697 		dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);  in pirq_vlsi_set()
700 	write_config_nybble(router, 0x74, pirq-1, irq);  in pirq_vlsi_set()
715 static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_serverworks_get()  argument
721 static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_serverworks_set()  argument
737 static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_amd756_get()  argument
742 		irq = read_config_nybble(router, 0x56, pirq - 1);  in pirq_amd756_get()
744 		 "AMD756: dev [%04x:%04x], router PIRQ %d get IRQ %d\n",  in pirq_amd756_get()
749 static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_amd756_set()  argument
752 		 "AMD756: dev [%04x:%04x], router PIRQ %d set IRQ %d\n",  in pirq_amd756_set()
755 		write_config_nybble(router, 0x56, pirq - 1, irq);  in pirq_amd756_set()
762 static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_pico_get()  argument
768 static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_pico_set()  argument
781 static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_bios_set()  argument
790 static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in intel_router_probe()  argument
798 	/* 440GX has a proprietary PIRQ router -- don't use it */  in intel_router_probe()
878 				struct pci_dev *router, u16 device)  in via_router_probe()  argument
886 		switch (router->device) {  in via_router_probe()
932 static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in vlsi_router_probe()  argument
946 		struct pci_dev *router, u16 device)  in serverworks_router_probe()  argument
959 static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in sis_router_probe()  argument
970 static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in cyrix_router_probe()  argument
982 static __init int opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in opti_router_probe()  argument
994 static __init int ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in ite_router_probe()  argument
1006 static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in ali_router_probe()  argument
1025 static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in amd_router_probe()  argument
1045 static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in pico_router_probe()  argument
1106 	DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for [%04x:%04x]\n",  in pirq_find_router()
1112 		DBG(KERN_DEBUG "PCI: Interrupt router not found at "  in pirq_find_router()
1118 		/* First look for a router match */  in pirq_find_router()
1127 	dev_info(&pirq_router_dev->dev, "%s IRQ router [%04x:%04x]\n",  in pirq_find_router()