1 files changed, 8 insertions, 1 deletions

diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h
index e074948d8143..625cd621a436 100644
--- a/arch/arm/include/asm/perf_event.h
+++ b/arch/arm/include/asm/perf_event.h
@@ -12,6 +12,13 @@
 #ifndef __ARM_PERF_EVENT_H__
 #define __ARM_PERF_EVENT_H__
 
-/* Nothing to see here... */
+/*
+ * The ARMv7 CPU PMU supports up to 32 event counters.
+ */
+#define ARMPMU_MAX_HWEVENTS             32
+
+#define HW_OP_UNSUPPORTED               0xFFFF
+#define C(_x)                           PERF_COUNT_HW_CACHE_##_x
+#define CACHE_OP_UNSUPPORTED            0xFFFF
 
 #endif /* __ARM_PERF_EVENT_H__ */