perf_counter: Rename L2 to LL cache

The top (fastest) and last level (biggest) caches are the most
interesting ones, performance wise.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
[ Fixed the Nehalem LL table to LLC Reference/Miss events ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c
index 060e0de..b3f7d12 100644
--- a/arch/powerpc/kernel/power7-pmu.c
+++ b/arch/powerpc/kernel/power7-pmu.c
@@ -320,7 +320,7 @@
 		[C(OP_WRITE)] = {	-1,		-1	},
 		[C(OP_PREFETCH)] = {	0x408a,		0	},
 	},
-	[C(L2)] = {		/* 	RESULT_ACCESS	RESULT_MISS */
+	[C(LL)] = {		/* 	RESULT_ACCESS	RESULT_MISS */
 		[C(OP_READ)] = {	0x6080,		0x6084	},
 		[C(OP_WRITE)] = {	0x6082,		0x6086	},
 		[C(OP_PREFETCH)] = {	0,		0	},