extern __u8 isa_irq_to_vector_map[16];
#define isa_irq_to_vector(x) isa_irq_to_vector_map[(x)]
-extern unsigned long ipi_base_addr;
-
extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */
extern int assign_irq_vector (int irq); /* allocate a free vector */