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-rw-r--r--llvm/pmu/arm/arm-events.cpp42
1 files changed, 42 insertions, 0 deletions
diff --git a/llvm/pmu/arm/arm-events.cpp b/llvm/pmu/arm/arm-events.cpp
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+++ b/llvm/pmu/arm/arm-events.cpp
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+/*
+ * (C) 2018 by Computer System Laboratory, IIS, Academia Sinica, Taiwan.
+ * See COPYRIGHT in top-level directory.
+ */
+
+#include "pmu/pmu-global.h"
+
+namespace pmu {
+
+/* ARMv8 recommended implementation defined event types.
+ * (copied from linux-4.x/arch/arm64/kernel/perf_event.c) */
+#define ICACHE_MISS_CONFIG (0x01)
+#define MEM_LOADS_CONFIG (0x06)
+#define MEM_STORES_CONFIG (0x07)
+
+
+extern EventID PreEvents[PMU_EVENT_MAX]; /* Pre-defined events. */
+
+static void ARMSetupEventCode()
+{
+#define SetupEvent(_Event,_Config) \
+ PreEvents[_Event].Type = PERF_TYPE_RAW; \
+ PreEvents[_Event].Config = _Config;
+
+ SetupEvent(PMU_ICACHE_MISSES, ICACHE_MISS_CONFIG);
+ SetupEvent(PMU_MEM_LOADS, MEM_LOADS_CONFIG);
+ SetupEvent(PMU_MEM_STORES, MEM_STORES_CONFIG);
+
+#undef SetEventCode
+}
+
+int ARMInit()
+{
+ ARMSetupEventCode();
+ return PMU_OK;
+}
+
+} /* namespace pmu */
+
+/*
+ * vim: ts=8 sts=4 sw=4 expandtab
+ */
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