gem5  v21.1.0.2
simpoint.hh
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2012-2014 ARM Limited
3  * All rights reserved.
4  *
5  * The license below extends only to copyright in the software and shall
6  * not be construed as granting a license to any other intellectual
7  * property including but not limited to intellectual property relating
8  * to a hardware implementation of the functionality of the software
9  * licensed hereunder. You may use the software subject to the license
10  * terms below provided that you ensure that this notice is replicated
11  * unmodified and in its entirety in all distributions of the software,
12  * modified or unmodified, in source code or in binary form.
13  *
14  * Redistribution and use in source and binary forms, with or without
15  * modification, are permitted provided that the following conditions are
16  * met: redistributions of source code must retain the above copyright
17  * notice, this list of conditions and the following disclaimer;
18  * redistributions in binary form must reproduce the above copyright
19  * notice, this list of conditions and the following disclaimer in the
20  * documentation and/or other materials provided with the distribution;
21  * neither the name of the copyright holders nor the names of its
22  * contributors may be used to endorse or promote products derived from
23  * this software without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36  */
37 
38 #ifndef __CPU_SIMPLE_PROBES_SIMPOINT_HH__
39 #define __CPU_SIMPLE_PROBES_SIMPOINT_HH__
40 
41 #include <unordered_map>
42 
43 #include "base/output.hh"
44 #include "cpu/simple_thread.hh"
45 #include "params/SimPoint.hh"
46 #include "sim/probe/probe.hh"
47 
48 namespace gem5
49 {
50 
62 
63 } // namespace gem5
64 
66 namespace std
67 {
68 template <>
69 struct hash<gem5::BasicBlockRange>
70 {
71  public:
72  size_t operator()(const gem5::BasicBlockRange &bb) const
73  {
74  return hash<gem5::Addr>()(bb.first + bb.second);
75  }
76 };
77 } // namespace std
78 
79 namespace gem5
80 {
81 
83 {
84  public:
85  SimPoint(const SimPointParams &params);
86  virtual ~SimPoint();
87 
88  virtual void init();
89 
90  virtual void regProbeListeners();
91 
98 
99  private:
101  const uint64_t intervalSize;
102 
104  uint64_t intervalCount;
106  uint64_t intervalDrift;
109 
111  struct BBInfo
112  {
114  uint64_t id;
116  uint64_t insts;
118  uint64_t count;
119  };
120 
122  std::unordered_map<BasicBlockRange, BBInfo> bbMap;
127 };
128 
129 } // namespace gem5
130 
131 #endif // __CPU_SIMPLE_PROBES_SIMPOINT_HH__
gem5::SimPoint::BBInfo::insts
uint64_t insts
Num of static insts in BB.
Definition: simpoint.hh:116
gem5::SimPoint::BBInfo::id
uint64_t id
Unique ID.
Definition: simpoint.hh:114
gem5::SimPoint::intervalSize
const uint64_t intervalSize
SimPoint profiling interval size in instructions.
Definition: simpoint.hh:101
gem5::SimPoint::BBInfo
Basic Block information.
Definition: simpoint.hh:111
gem5::ProbeListenerObject
This class is a minimal wrapper around SimObject.
Definition: probe.hh:107
output.hh
gem5::SimPoint::regProbeListeners
virtual void regProbeListeners()
Register probe listeners for this object.
Definition: simpoint.cc:69
gem5::SimPoint::intervalCount
uint64_t intervalCount
Inst count in current basic block.
Definition: simpoint.hh:104
gem5::SimPoint::~SimPoint
virtual ~SimPoint()
Definition: simpoint.cc:59
gem5::SimObject::params
const Params & params() const
Definition: sim_object.hh:176
gem5::SimPoint::currentBBV
BasicBlockRange currentBBV
Currently executing basic block.
Definition: simpoint.hh:124
gem5::SimPoint::profile
void profile(const std::pair< SimpleThread *, StaticInstPtr > &)
Profile basic blocks for SimPoints.
Definition: simpoint.cc:78
std::hash< gem5::BasicBlockRange >::operator()
size_t operator()(const gem5::BasicBlockRange &bb) const
Definition: simpoint.hh:72
gem5::SimPoint::bbMap
std::unordered_map< BasicBlockRange, BBInfo > bbMap
Hash table containing all previously seen basic blocks.
Definition: simpoint.hh:122
gem5::SimPoint::SimPoint
SimPoint(const SimPointParams &params)
Definition: simpoint.cc:45
gem5::SimPoint::currentBBVInstCount
uint64_t currentBBVInstCount
inst count in current basic block
Definition: simpoint.hh:126
std::pair< Addr, Addr >
gem5::BasicBlockRange
std::pair< Addr, Addr > BasicBlockRange
Probe for SimPoints BBV generation.
Definition: simpoint.hh:61
gem5::SimPoint::init
virtual void init()
init() is called after all C++ SimObjects have been created and all ports are connected.
Definition: simpoint.cc:65
gem5::SimPoint::intervalDrift
uint64_t intervalDrift
Excess inst count from previous interval.
Definition: simpoint.hh:106
simple_thread.hh
std
Overload hash function for BasicBlockRange type.
Definition: types.hh:111
gem5::PowerISA::bb
Bitfield< 15, 11 > bb
Definition: types.hh:93
gem5::SimPoint::BBInfo::count
uint64_t count
Accumulated dynamic inst count executed by BB.
Definition: simpoint.hh:118
gem5::SimPoint
Definition: simpoint.hh:82
probe.hh
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::OutputStream
Definition: output.hh:56
gem5::SimPoint::simpointStream
OutputStream * simpointStream
Pointer to SimPoint BBV output stream.
Definition: simpoint.hh:108

Generated on Tue Sep 21 2021 12:25:06 for gem5 by doxygen 1.8.17