53 	int (*get)(struct pci_dev *router, struct pci_dev *dev, int pirq);
54 	int (*set)(struct pci_dev *router, struct pci_dev *dev, int pirq,
56 	int (*lvl)(struct pci_dev *router, struct pci_dev *dev, int pirq,
62 	int (*probe)(struct irq_router *r, struct pci_dev *router, u16 device);
117  * have no information as to the router device to use, but we can handle
349 static int pirq_finali_get(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_get()  argument
368 static int pirq_finali_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_set()  argument
390 static int pirq_finali_lvl(struct pci_dev *router, struct pci_dev *dev,  in pirq_finali_lvl()  argument
412 static unsigned int read_config_nybble(struct pci_dev *router, unsigned offset, unsigned nr)  in read_config_nybble()  argument
417 	pci_read_config_byte(router, reg, &x);  in read_config_nybble()
421 static void write_config_nybble(struct pci_dev *router, unsigned offset,  in write_config_nybble()  argument
427 	pci_read_config_byte(router, reg, &x);  in write_config_nybble()
429 	pci_write_config_byte(router, reg, x);  in write_config_nybble()
437 static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ali_get()  argument
442 	return irqmap[read_config_nybble(router, 0x48, pirq-1)];  in pirq_ali_get()
445 static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_ali_set()  argument
452 		write_config_nybble(router, 0x48, pirq-1, val);  in pirq_ali_set()
468  *	with the PIIX router.
490 static int pirq_esc_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_esc_get()  argument
508 static int pirq_esc_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_esc_set()  argument
530 static int pirq_piix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_piix_get()  argument
534 	pci_read_config_byte(router, pirq, &x);  in pirq_piix_get()
538 static int pirq_piix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_piix_set()  argument
540 	pci_write_config_byte(router, pirq, irq);  in pirq_piix_set()
551  *	the same as with the PIIX router.
562 static int pirq_ib_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ib_get()  argument
571 	pci_read_config_byte(router, reg, &x);  in pirq_ib_get()
575 static int pirq_ib_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_ib_set()  argument
584 	pci_write_config_byte(router, reg, irq);  in pirq_ib_set()
593 static int pirq_via_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_via_get()  argument
595 	return read_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq);  in pirq_via_get()
598 static int pirq_via_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_via_set()  argument
600 	write_config_nybble(router, 0x55, pirq == 4 ? 5 : pirq, irq);  in pirq_via_set()
609 static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_via586_get()  argument
614 	return read_config_nybble(router, 0x55, pirqmap[pirq-1]);  in pirq_via586_get()
617 static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_via586_set()  argument
622 	write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);  in pirq_via586_set()
631 static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_ite_get()  argument
636 	return read_config_nybble(router, 0x43, pirqmap[pirq-1]);  in pirq_ite_get()
639 static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_ite_set()  argument
644 	write_config_nybble(router, 0x43, pirqmap[pirq-1], irq);  in pirq_ite_set()
652 static int pirq_opti_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_opti_get()  argument
654 	return read_config_nybble(router, 0xb8, pirq >> 4);  in pirq_opti_get()
657 static int pirq_opti_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_opti_set()  argument
659 	write_config_nybble(router, 0xb8, pirq >> 4, irq);  in pirq_opti_set()
668 static int pirq_cyrix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_cyrix_get()  argument
670 	return read_config_nybble(router, 0x5C, (pirq-1)^1);  in pirq_cyrix_get()
673 static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_cyrix_set()  argument
675 	write_config_nybble(router, 0x5C, (pirq-1)^1, irq);  in pirq_cyrix_set()
723 static int pirq_sis497_get(struct pci_dev *router, struct pci_dev *dev,  in pirq_sis497_get()  argument
733 	pci_read_config_byte(router, reg, &x);  in pirq_sis497_get()
737 static int pirq_sis497_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_sis497_set()  argument
747 	pci_read_config_byte(router, reg, &x);  in pirq_sis497_set()
750 	pci_write_config_byte(router, reg, x);  in pirq_sis497_set()
755  *	PIRQ routing for SiS 85C503 router used in several SiS chipsets.
760  *	- different revision of the router have a different layout for
780  *	router (ISA-bridge) should be 0x01 or 0xb0.
788  *	Onchip routing for router rev-id 0x01/0xb0 and probably 0x00/0xb1:
806  *	router revision 0x04 and there are changes in the register layout
809  *	Onchip routing for router rev-id 0x04 (try-and-error observation)
819 static int pirq_sis503_get(struct pci_dev *router, struct pci_dev *dev,  in pirq_sis503_get()  argument
828 	pci_read_config_byte(router, reg, &x);  in pirq_sis503_get()
832 static int pirq_sis503_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_sis503_set()  argument
841 	pci_read_config_byte(router, reg, &x);  in pirq_sis503_set()
844 	pci_write_config_byte(router, reg, x);  in pirq_sis503_set()
851  *       config space of VLSI 82C534 PCI-bridge/router (1004:0102)
857 static int pirq_vlsi_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_vlsi_get()  argument
861 		dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);  in pirq_vlsi_get()
864 	return read_config_nybble(router, 0x74, pirq-1);  in pirq_vlsi_get()
867 static int pirq_vlsi_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_vlsi_set()  argument
871 		dev_info(&dev->dev, "VLSI router PIRQ escape (%d)\n", pirq);  in pirq_vlsi_set()
874 	write_config_nybble(router, 0x74, pirq-1, irq);  in pirq_vlsi_set()
889 static int pirq_serverworks_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_serverworks_get()  argument
895 static int pirq_serverworks_set(struct pci_dev *router, struct pci_dev *dev,  in pirq_serverworks_set()  argument
911 static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_amd756_get()  argument
916 		irq = read_config_nybble(router, 0x56, pirq - 1);  in pirq_amd756_get()
918 		 "AMD756: dev [%04x:%04x], router PIRQ %d get IRQ %d\n",  in pirq_amd756_get()
923 static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_amd756_set()  argument
926 		 "AMD756: dev [%04x:%04x], router PIRQ %d set IRQ %d\n",  in pirq_amd756_set()
929 		write_config_nybble(router, 0x56, pirq - 1, irq);  in pirq_amd756_set()
936 static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev, int pirq)  in pirq_pico_get()  argument
942 static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq,  in pirq_pico_set()  argument
955 static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)  in pirq_bios_set()  argument
964 static __init int intel_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in intel_router_probe()  argument
972 	/* 440GX has a proprietary PIRQ router -- don't use it */  in intel_router_probe()
1052 				struct pci_dev *router, u16 device)  in via_router_probe()  argument
1060 		switch (router->device) {  in via_router_probe()
1106 static __init int vlsi_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in vlsi_router_probe()  argument
1120 		struct pci_dev *router, u16 device)  in serverworks_router_probe()  argument
1133 static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in sis_router_probe()  argument
1150 static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in cyrix_router_probe()  argument
1162 static __init int opti_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in opti_router_probe()  argument
1174 static __init int ite_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in ite_router_probe()  argument
1186 static __init int ali_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in ali_router_probe()  argument
1205 static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in amd_router_probe()  argument
1225 static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)  in pico_router_probe()  argument
1273 	DBG(KERN_DEBUG "PCI: Trying IRQ router for [%04x:%04x]\n",  in pirq_try_router()
1277 		/* First look for a router match */  in pirq_try_router()
1308 	DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for [%04x:%04x]\n",  in pirq_find_router()
1328 		dev_info(&pirq_router_dev->dev, "%s IRQ router [%04x:%04x]\n",  in pirq_find_router()
1332 		DBG(KERN_DEBUG "PCI: Interrupt router not found at "  in pirq_find_router()