Merge groveronline.com:/root/bk/linux-2.5

into groveronline.com:/root/bk/linux-acpi

arch/i386/kernel/mpparse.c

@@ -1027,8 +1027,19 @@ void __init mp_config_ioapic_for_sci(int irq)
 
 		while ((void *) entry < madt_end) {
                 	if (entry->header.type == ACPI_MADT_INT_SRC_OVR &&
-			    acpi_fadt.sci_int == entry->global_irq)
-                		return;
+			    acpi_fadt.sci_int == entry->bus_irq) {
+				/*
+				 * See the note at the end of ACPI 2.0b section
+				 * 5.2.10.8 for what this is about.
+				 */
+				if (entry->bus_irq != entry->global_irq) {
+					acpi_fadt.sci_int = entry->global_irq;
+					irq = entry->global_irq;
+					break;
+				}
+				else
+                			return;
+			}
 
                 	entry = (struct acpi_table_int_src_ovr *)
                 	        ((unsigned long) entry + entry->header.length);

drivers/acpi/osl.c

@@ -223,6 +223,13 @@ acpi_irq(int irq, void *dev_id, struct pt_regs *regs)
 acpi_status
 acpi_os_install_interrupt_handler(u32 irq, OSD_HANDLER handler, void *context)
 {
+	/*
+	 * Ignore the irq from the core, and use the value in our copy of the
+	 * FADT. It may not be the same if an interrupt source override exists
+	 * for the SCI.
+	 */
+	irq = acpi_fadt.sci_int;
+
 #ifdef CONFIG_IA64
 	irq = gsi_to_vector(irq);
 #endif

drivers/acpi/pci_link.c

@@ -306,13 +306,26 @@ acpi_pci_link_set (
 	memset(&resource, 0, sizeof(resource));
 
 	/* NOTE: PCI interrupts are always level / active_low / shared. */
-	resource.res.id = ACPI_RSTYPE_IRQ;
-	resource.res.length = sizeof(struct acpi_resource);
-	resource.res.data.irq.edge_level = ACPI_LEVEL_SENSITIVE;
-	resource.res.data.irq.active_high_low = ACPI_ACTIVE_LOW;
-	resource.res.data.irq.shared_exclusive = ACPI_SHARED;
-	resource.res.data.irq.number_of_interrupts = 1;
-	resource.res.data.irq.interrupts[0] = irq;
+	if (irq <= 15) {
+		resource.res.id = ACPI_RSTYPE_IRQ;
+		resource.res.length = sizeof(struct acpi_resource);
+		resource.res.data.irq.edge_level = ACPI_LEVEL_SENSITIVE;
+		resource.res.data.irq.active_high_low = ACPI_ACTIVE_LOW;
+		resource.res.data.irq.shared_exclusive = ACPI_SHARED;
+		resource.res.data.irq.number_of_interrupts = 1;
+		resource.res.data.irq.interrupts[0] = irq;
+	}
+	else {
+		resource.res.id = ACPI_RSTYPE_EXT_IRQ;
+		resource.res.length = sizeof(struct acpi_resource);
+		resource.res.data.extended_irq.producer_consumer = ACPI_CONSUMER;
+		resource.res.data.extended_irq.edge_level = ACPI_LEVEL_SENSITIVE;
+		resource.res.data.extended_irq.active_high_low = ACPI_ACTIVE_LOW;
+		resource.res.data.extended_irq.shared_exclusive = ACPI_SHARED;
+		resource.res.data.extended_irq.number_of_interrupts = 1;
+		resource.res.data.extended_irq.interrupts[0] = irq;
+		/* ignore resource_source, it's optional */
+	}
 	resource.end.id = ACPI_RSTYPE_END_TAG;
 
 	status = acpi_set_current_resources(link->handle, &buffer);