1 files changed, 56 insertions, 0 deletions

diff --git a/daemon/PerfDriver.h b/daemon/PerfDriver.h
new file mode 100644
index 0000000..3181b74
--- /dev/null
+++ b/daemon/PerfDriver.h
@@ -0,0 +1,56 @@
+/**
+ * Copyright (C) ARM Limited 2013-2014. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef PERFDRIVER_H
+#define PERFDRIVER_H
+
+#include "Driver.h"
+
+// If debugfs is not mounted at /sys/kernel/debug, update DEBUGFS_PATH
+#define DEBUGFS_PATH "/sys/kernel/debug"
+#define EVENTS_PATH DEBUGFS_PATH "/tracing/events"
+
+#define SCHED_SWITCH "sched/sched_switch"
+
+class Buffer;
+class DynBuf;
+class PerfCounter;
+class PerfGroup;
+
+class PerfDriver : public Driver {
+public:
+        PerfDriver();
+        ~PerfDriver();
+
+        bool setup();
+        bool summary(Buffer *const buffer);
+        bool isSetup() const { return mIsSetup; }
+
+        bool claimCounter(const Counter &counter) const;
+        void resetCounters();
+        void setupCounter(Counter &counter);
+
+        int writeCounters(mxml_node_t *root) const;
+
+        bool enable(PerfGroup *group, Buffer *const buffer) const;
+
+        static long long getTracepointId(const char *const name, DynBuf *const printb);
+
+private:
+        PerfCounter *findCounter(const Counter &counter) const;
+        void addCpuCounters(const char *const counterName, const int type, const int numCounters);
+
+        PerfCounter *mCounters;
+        bool mIsSetup;
+
+        // Intentionally undefined
+        PerfDriver(const PerfDriver &);
+        PerfDriver &operator=(const PerfDriver &);
+};
+
+#endif // PERFDRIVER_H