+#if defined(CONFIG_X86_IO_APIC) && (defined(CONFIG_ACPI_INTERPRETER) || defined(CONFIG_ACPI_BOOT))
+#define IOAPIC_GSI_BOUND(ioapic) ((ioapic+1) * (nr_ioapic_registers[ioapic]-1))
+#define MAX_GSI_MAPSIZE 32
+#endif
+
+extern unsigned long io_apic_irqs;
+
+extern int parse_unisys_oem (char *oemptr, int oem_entries);