58  *     Each interrupt line has a unique Global System Interrupt (GSI) number
59  *     which can be calculated as the sum of the controller's base GSI number
74  *	PCI pin -> global system interrupt (GSI) -> IA-64 vector <-> IRQ
119 	unsigned int	gsi_base;	/* GSI base */
161  * Find an IOSAPIC associated with a GSI
164 find_iosapic (unsigned int gsi)  in find_iosapic()  argument
169 		if ((unsigned) (gsi - iosapic_lists[i].gsi_base) <  in find_iosapic()
177 static inline int __gsi_to_irq(unsigned int gsi)  in __gsi_to_irq()  argument
186 			if (rte->iosapic->gsi_base + rte->rte_index == gsi)  in __gsi_to_irq()
193 gsi_to_irq (unsigned int gsi)  in gsi_to_irq()  argument
199 	irq = __gsi_to_irq(gsi);  in gsi_to_irq()
204 static struct iosapic_rte_info *find_rte(unsigned int irq, unsigned int gsi)  in find_rte()  argument
209 		if (rte->iosapic->gsi_base + rte->rte_index == gsi)  in find_rte()
215 set_rte (unsigned int gsi, unsigned int irq, unsigned int dest, int mask)  in set_rte()  argument
226 	rte = find_rte(irq, gsi);  in set_rte()
552 register_intr (unsigned int gsi, int irq, unsigned char delivery,  in register_intr()  argument
559 	index = find_iosapic(gsi);  in register_intr()
561 		printk(KERN_WARNING "%s: No IOSAPIC for GSI %u\n",  in register_intr()
562 		       __func__, gsi);  in register_intr()
566 	rte = find_rte(irq, gsi);  in register_intr()
576 		rte->rte_index	= gsi - rte->iosapic->gsi_base;  in register_intr()
618 get_target_cpu (unsigned int gsi, int irq)  in get_target_cpu()  argument
654 		iosapic_index = find_iosapic(gsi);  in get_target_cpu()
712 iosapic_register_intr (unsigned int gsi,  in iosapic_register_intr()  argument
724 	 * If this GSI has already been registered (i.e., it's a  in iosapic_register_intr()
729 	irq = __gsi_to_irq(gsi);  in iosapic_register_intr()
731 		rte = find_rte(irq, gsi);  in iosapic_register_intr()
751 	dest = get_target_cpu(gsi, irq);  in iosapic_register_intr()
753 	err = register_intr(gsi, irq, dmode, polarity, trigger);  in iosapic_register_intr()
767 	set_rte(gsi, irq, dest, mask);  in iosapic_register_intr()
769 	printk(KERN_INFO "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d\n",  in iosapic_register_intr()
770 	       gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),  in iosapic_register_intr()
781 iosapic_unregister_intr (unsigned int gsi)  in iosapic_unregister_intr()  argument
791 	 * If the irq associated with the gsi is not found,  in iosapic_unregister_intr()
795 	irq = gsi_to_irq(gsi);  in iosapic_unregister_intr()
798 		       gsi);  in iosapic_unregister_intr()
804 	if ((rte = find_rte(irq, gsi)) == NULL) {  in iosapic_unregister_intr()
806 		       gsi);  in iosapic_unregister_intr()
821 	index = find_iosapic(gsi);  in iosapic_unregister_intr()
829 	       "GSI %u (%s, %s) -> CPU %d (0x%04x) vector %d unregistered\n",  in iosapic_unregister_intr()
830 	       gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),  in iosapic_unregister_intr()
857 iosapic_register_platform_intr (u32 int_type, unsigned int gsi,  in iosapic_register_platform_intr()  argument
896 	register_intr(gsi, irq, delivery, polarity, trigger);  in iosapic_register_platform_intr()
899 	       "PLATFORM int %s (0x%x): GSI %u (%s, %s) -> CPU %d (0x%04x)"  in iosapic_register_platform_intr()
902 	       int_type, gsi, (trigger == IOSAPIC_EDGE ? "edge" : "level"),  in iosapic_register_platform_intr()
906 	set_rte(gsi, irq, dest, mask);  in iosapic_register_platform_intr()
913 void iosapic_override_isa_irq(unsigned int isa_irq, unsigned int gsi,  in iosapic_override_isa_irq()  argument
923 	register_intr(gsi, irq, dmode, polarity, trigger);  in iosapic_override_isa_irq()
925 	DBG("ISA: IRQ %u -> GSI %u (%s,%s) -> CPU %d (0x%04x) vector %d\n",  in iosapic_override_isa_irq()
926 	    isa_irq, gsi, trigger == IOSAPIC_EDGE ? "edge" : "level",  in iosapic_override_isa_irq()
930 	set_rte(gsi, irq, dest, 1);  in iosapic_override_isa_irq()
992 	/* check gsi range */  in iosapic_check_gsi_range()
1010 iosapic_delete_rte(unsigned int irq, unsigned int gsi)  in iosapic_delete_rte()  argument
1016 		if (rte->iosapic->gsi_base + rte->rte_index == gsi) {  in iosapic_delete_rte()
1094 		printk(KERN_WARNING "%s: No IOSAPIC for GSI base %u\n",  in iosapic_remove()
1101 		printk(KERN_WARNING "%s: IOSAPIC for GSI base %u is busy\n",  in iosapic_remove()
1130 		printk(KERN_WARNING "%s: No IOSAPIC for GSI %u\n",  in map_iosapic_to_node()