3  * initial domain support. We also handle the DSDT _PRT callbacks for GSI's
36 	u8 gsi;  in xen_pcifront_enable_irq()  local
38 	rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi);  in xen_pcifront_enable_irq()
45 	pirq = gsi;  in xen_pcifront_enable_irq()
47 	if (gsi < nr_legacy_irqs())  in xen_pcifront_enable_irq()
50 	rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront");  in xen_pcifront_enable_irq()
52 		dev_warn(&dev->dev, "Xen PCI: failed to bind GSI%d (PIRQ%d) to IRQ: %d\n",  in xen_pcifront_enable_irq()
53 			 gsi, pirq, rc);  in xen_pcifront_enable_irq()
58 	dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq);  in xen_pcifront_enable_irq()
63 static int xen_register_pirq(u32 gsi, int gsi_override, int triggering,  in xen_register_pirq()  argument
71 	irq = xen_irq_from_gsi(gsi);  in xen_register_pirq()
76 		pirq = gsi;  in xen_register_pirq()
80 	map_irq.index = gsi;  in xen_register_pirq()
98 		gsi = gsi_override;  in xen_register_pirq()
100 	irq = xen_bind_pirq_gsi_to_irq(gsi, map_irq.pirq, shareable, name);  in xen_register_pirq()
104 	printk(KERN_DEBUG "xen: --> pirq=%d -> irq=%d (gsi=%d)\n", map_irq.pirq, irq, gsi);  in xen_register_pirq()
109 static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,  in acpi_register_gsi_xen_hvm()  argument
115 	return xen_register_pirq(gsi, -1 /* no GSI override */, trigger,  in acpi_register_gsi_xen_hvm()
116 				 false /* no mapping of GSI to PIRQ */);  in acpi_register_gsi_xen_hvm()
120 static int xen_register_gsi(u32 gsi, int gsi_override, int triggering, int polarity)  in xen_register_gsi()  argument
128 	printk(KERN_DEBUG "xen: registering gsi %u triggering %d polarity %d\n",  in xen_register_gsi()
129 			gsi, triggering, polarity);  in xen_register_gsi()
131 	irq = xen_register_pirq(gsi, gsi_override, triggering, true);  in xen_register_gsi()
133 	setup_gsi.gsi = gsi;  in xen_register_gsi()
139 		printk(KERN_INFO "Already setup the GSI :%d\n", gsi);  in xen_register_gsi()
141 		printk(KERN_ERR "Failed to setup GSI :%d, err_code:%d\n",  in xen_register_gsi()
142 				gsi, rc);  in xen_register_gsi()
148 static int acpi_register_gsi_xen(struct device *dev, u32 gsi,  in acpi_register_gsi_xen()  argument
151 	return xen_register_gsi(gsi, -1 /* no GSI override */, trigger, polarity);  in acpi_register_gsi_xen()
494 		xen_register_pirq(irq, -1 /* no GSI override */,  in pci_xen_initial_domain()
496 			true /* Map GSI to PIRQ */);  in pci_xen_initial_domain()