kernel/acpi/boot.c

105  * any gsi as specified by an interrupt source override.
404 						u8 trigger, u32 gsi);
407 					  u32 gsi)
425 	if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0)
428 	 * Reset default identity mapping if gsi is also an legacy IRQ,
432 	if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi)
433 		isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ;
434 	isa_irq_to_gsi[bus_irq] = gsi;
437 static void mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
464 	ioapic = mp_find_ioapic(gsi);
466 	mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi);
473 						u8 trigger, u32 gsi)
478 	/* Convert 'gsi' to 'ioapic.pin'(INTIN#) */
479 	ioapic = mp_find_ioapic(gsi);
481 		pr_warn("Failed to find ioapic for gsi : %u\n", gsi);
485 	pin = mp_find_ioapic_pin(ioapic, gsi);
529 static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger, u32 gsi)
545 		mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
547 		mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi);
555 	acpi_sci_override_gsi = gsi;
673 int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp)
678 		*irqp = gsi;
682 	rc = acpi_get_override_irq(gsi, &trigger, &polarity);
688 	irq = acpi_register_gsi(NULL, gsi, trigger, polarity);
697 int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
701 		*gsi = isa_irq_to_gsi[isa_irq];
708 static int acpi_register_gsi_pic(struct device *dev, u32 gsi,
716 		elcr_set_level_irq(gsi);
719 	return gsi;
723 static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi,
726 	int irq = gsi;
737 	irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info);
739 	if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt)
740 		mp_config_acpi_gsi(dev, gsi, trigger, polarity);
747 static void acpi_unregister_gsi_ioapic(u32 gsi)
753 	irq = mp_map_gsi_to_irq(gsi, 0, NULL);
761 int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
763 void (*__acpi_unregister_gsi)(u32 gsi) = NULL;
775 int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
777 	return __acpi_register_gsi(dev, gsi, trigger, polarity);
781 void acpi_unregister_gsi(u32 gsi)
784 		__acpi_unregister_gsi(gsi);
1175 		u32 gsi;
1177 		/* Locate the gsi that irq i maps to. */
1178 		if (acpi_isa_irq_to_gsi(i, &gsi))
1184 		ioapic = mp_find_ioapic(gsi);
1187 		pin = mp_find_ioapic_pin(ioapic, gsi);