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-rw-r--r--arch/x86/events/perf_event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index bcbb1d2ae10b..be3d36254040 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -79,6 +79,7 @@ struct amd_nb {
/* The maximal number of PEBS events: */
#define MAX_PEBS_EVENTS 8
+#define PEBS_COUNTER_MASK ((1ULL << MAX_PEBS_EVENTS) - 1)
/*
* Flags PEBS can handle without an PMI.