[SPARC64]: Sun4v cross-call sending support.

Technically the hypervisor call supports sending in a list
of all cpus to get the cross-call, but I only pass in one
cpu at a time for now.

The multi-cpu support is there, just ifdef'd out so it's easy to
enable or delete it later.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 5417ff1..ac17116 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2377,7 +2377,11 @@
 	    (TRAP_PER_CPU_NONRESUM_KBUF_PA !=
 	     offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) ||
 	    (TRAP_PER_CPU_FAULT_INFO !=
-	     offsetof(struct trap_per_cpu, fault_info)))
+	     offsetof(struct trap_per_cpu, fault_info)) ||
+	    (TRAP_PER_CPU_CPU_MONDO_BLOCK_PA !=
+	     offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) ||
+	    (TRAP_PER_CPU_CPU_LIST_PA !=
+	     offsetof(struct trap_per_cpu, cpu_list_pa)))
 		trap_per_cpu_offsets_are_bolixed_dave();
 
 	/* Attach to the address space of init_task.  On SMP we