diff -r 5b34a4ae0f58 -r 839c8ba29724 hotspot/src/cpu/ppc/vm/globalDefinitions_ppc.hpp
--- a/hotspot/src/cpu/ppc/vm/globalDefinitions_ppc.hpp	Fri Dec 04 14:06:38 2015 +0100
+++ b/hotspot/src/cpu/ppc/vm/globalDefinitions_ppc.hpp	Fri Dec 04 16:38:04 2015 +0100
@@ -36,4 +36,7 @@
 // The PPC CPUs are NOT multiple-copy-atomic.
 #define CPU_NOT_MULTIPLE_COPY_ATOMIC
 
+// The expected size in bytes of a cache line, used to pad data structures.
+#define DEFAULT_CACHE_LINE_SIZE 128
+
 #endif // CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP