[SPARC64]: Proper multi-core scheduling support.

The scheduling domain hierarchy is:

   all cpus -->
      cpus that share an instruction cache -->
          cpus that share an integer execution unit

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index f76e149..5400212 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -33,6 +33,7 @@
 #define cpu_possible_map phys_cpu_present_map
 
 extern cpumask_t cpu_sibling_map[NR_CPUS];
+extern cpumask_t cpu_core_map[NR_CPUS];
 
 /*
  *	General functions that each host system must provide.