Separate open source core runtime code from DK makefiles.

[git-p4: depot-paths = "//depot/stg/hsa/drivers/hsa/runtime/": change = 1250152]

runtime/hsa-runtime/core/util/timer.h

@@ -0,0 +1,162 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+// The University of Illinois/NCSA
+// Open Source License (NCSA)
+// 
+// Copyright (c) 2014-2015, Advanced Micro Devices, Inc. All rights reserved.
+// 
+// Developed by:
+// 
+//                 AMD Research and AMD HSA Software Development
+// 
+//                 Advanced Micro Devices, Inc.
+// 
+//                 www.amd.com
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal with the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+// 
+//  - Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimers.
+//  - Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimers in
+//    the documentation and/or other materials provided with the distribution.
+//  - Neither the names of Advanced Micro Devices, Inc,
+//    nor the names of its contributors may be used to endorse or promote
+//    products derived from this Software without specific prior written
+//    permission.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS WITH THE SOFTWARE.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef HSA_RUNTIME_CORE_UTIL_TIMER_H_
+#define HSA_RUNTIME_CORE_UTIL_TIMER_H_
+
+#include "core/util/utils.h"
+#include "core/util/os.h"
+#include <chrono>
+
+#include <type_traits>
+
+namespace timer {
+
+// Needed to patch around a mixed arithmetic bug in MSVC's duration_cast as of
+// VS 2013.
+template <bool isFloat, bool isSigned>
+struct wide_type {
+  typedef double type;
+};
+template <>
+struct wide_type<false, false> {
+  typedef uintmax_t type;
+};
+template <>
+struct wide_type<false, true> {
+  typedef intmax_t type;
+};
+
+template <typename To, typename Rep, typename Period>
+static __forceinline To
+    duration_cast(const std::chrono::duration<Rep, Period>& d) {
+  typedef typename wide_type<std::is_floating_point<Rep>::value,
+                             std::is_signed<Rep>::value>::type wide;
+  typedef std::chrono::duration<wide, typename To::period> unit_convert_t;
+
+  unit_convert_t temp = std::chrono::duration_cast<unit_convert_t>(d);
+  return To(static_cast<typename To::rep>(temp.count()));
+}
+// End patch
+
+template <typename Rep, typename Period>
+static __forceinline double duration_in_seconds(
+    std::chrono::duration<Rep, Period> delta) {
+  typedef std::chrono::duration<double, std::ratio<1, 1>> seconds;
+  return seconds(delta).count();
+}
+
+template <typename rep>
+static __forceinline rep duration_from_seconds(double delta) {
+  typedef std::chrono::duration<double, std::ratio<1, 1>> seconds;
+  return std::chrono::duration_cast<rep>(seconds(delta));
+}
+
+// Provices a C++11 standard clock interface to the os::AccurateClock functions
+class accurate_clock {
+ public:
+  typedef double rep;
+  typedef std::nano period;
+  typedef std::chrono::duration<rep, period> duration;
+  typedef std::chrono::time_point<accurate_clock> time_point;
+
+  static const bool is_steady = true;
+
+  static __forceinline time_point now() {
+    return time_point(duration(raw_now() * period_ns));
+  }
+
+  // These two extra APIs and types let us use clocks without conversion to the
+  // arbitrary period unit
+  typedef uint64_t raw_rep;
+  typedef uint64_t raw_frequency;
+
+  static __forceinline raw_rep raw_now() { return os::ReadAccurateClock(); }
+  static __forceinline raw_frequency raw_freq() { return freq; }
+
+ private:
+  static double period_ns;
+  static raw_frequency freq;
+
+  class init {
+   public:
+    init();
+  };
+  static init accurate_clock_init;
+};
+
+// Provices a C++11 standard clock interface to the lowest latency approximate
+// clock
+class fast_clock {
+ public:
+  typedef double rep;
+  typedef std::pico period;
+  typedef std::chrono::duration<rep, period> duration;
+  typedef std::chrono::time_point<fast_clock> time_point;
+
+  static const bool is_steady = true;
+
+  static __forceinline time_point now() {
+    return time_point(duration(raw_now() * period_ps));
+  }
+
+  // These two extra APIs and types let us use clocks without conversion to the
+  // arbitrary period unit
+  typedef uint64_t raw_rep;
+  typedef double raw_frequency;
+
+  static __forceinline raw_rep raw_now() { return __rdtsc(); }
+  static __forceinline raw_frequency raw_freq() { return freq; }
+
+ private:
+  static double period_ps;
+  static raw_frequency freq;
+
+  class init {
+   public:
+    init();
+  };
+  static init fast_clock_init;
+};
+}
+
+#endif