1/*
| 1/*
|
2 * Copyright (c) 2016 ARM Limited
| 2 * Copyright (c) 2016-2017 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 * Authors: David Guillen Fandos
38 */
39
40#ifndef __SIM_MATHEXPR_POWERMODEL_PM_HH__
41#define __SIM_MATHEXPR_POWERMODEL_PM_HH__
42
43#include <unordered_map>
44
45#include "params/MathExprPowerModel.hh"
46#include "sim/mathexpr.hh"
47#include "sim/power/power_model.hh"
48
49namespace Stats {
50 class Info;
51}
52
53/**
54 * A Equation power model. The power is represented as a combination
55 * of some stats and automatic variables (like temperature).
56 */
57class MathExprPowerModel : public PowerModelState
58{
59 public:
60
61 typedef MathExprPowerModelParams Params;
62 MathExprPowerModel(const Params *p);
63
64 /**
65 * Get the dynamic power consumption.
66 *
67 * @return Power (Watts) consumed by this object (dynamic component)
68 */
| 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 * Authors: David Guillen Fandos
38 */
39
40#ifndef __SIM_MATHEXPR_POWERMODEL_PM_HH__
41#define __SIM_MATHEXPR_POWERMODEL_PM_HH__
42
43#include <unordered_map>
44
45#include "params/MathExprPowerModel.hh"
46#include "sim/mathexpr.hh"
47#include "sim/power/power_model.hh"
48
49namespace Stats {
50 class Info;
51}
52
53/**
54 * A Equation power model. The power is represented as a combination
55 * of some stats and automatic variables (like temperature).
56 */
57class MathExprPowerModel : public PowerModelState
58{
59 public:
60
61 typedef MathExprPowerModelParams Params;
62 MathExprPowerModel(const Params *p);
63
64 /**
65 * Get the dynamic power consumption.
66 *
67 * @return Power (Watts) consumed by this object (dynamic component)
68 */
|
69 double getDynamicPower() const {
70 return dyn_expr.eval(
71 std::bind(&MathExprPowerModel::getStatValue,
72 this, std::placeholders::_1)
73 );
74 }
| 69 double getDynamicPower() const { return eval(dyn_expr); }
|
75
76 /**
77 * Get the static power consumption.
78 *
79 * @return Power (Watts) consumed by this object (static component)
80 */
| 70
71 /**
72 * Get the static power consumption.
73 *
74 * @return Power (Watts) consumed by this object (static component)
75 */
|
81 double getStaticPower() const {
82 return st_expr.eval(
83 std::bind(&MathExprPowerModel::getStatValue,
84 this, std::placeholders::_1)
85 );
86 }
| 76 double getStaticPower() const { return eval(st_expr); }
|
87
88 /**
89 * Get the value for a variable (maps to a stat)
90 *
91 * @param name Name of the variable to retrieve the value from
92 *
93 * @return Power (Watts) consumed by this object (static component)
94 */
95 double getStatValue(const std::string & name) const;
96
97 void startup();
98
99 void regStats();
100
101 private:
| 77
78 /**
79 * Get the value for a variable (maps to a stat)
80 *
81 * @param name Name of the variable to retrieve the value from
82 *
83 * @return Power (Watts) consumed by this object (static component)
84 */
85 double getStatValue(const std::string & name) const;
86
87 void startup();
88
89 void regStats();
90
91 private:
|
| 92 /**
93 * Evaluate an expression in the context of this object, fatal if
94 * evaluation fails.
95 *
96 * @param expr Expression to evaluate
97 * @return Value of expression.
98 */
99 double eval(const MathExpr &expr) const;
|
102
| 100
|
| 101 /**
102 * Evaluate an expression in the context of this object, set
103 * failed if evaluation failed.
104 *
105 * @param expr Expression to evaluate
106 * @return Value of expression.
107 */
108 double tryEval(const MathExpr &expr) const;
109
|
103 // Math expressions for dynamic and static power
104 MathExpr dyn_expr, st_expr;
105
106 // Basename of the object in the gem5 stats hierachy
107 std::string basename;
108
109 // Map that contains relevant stats for this power model
110 std::unordered_map<std::string, Stats::Info*> stats_map;
| 110 // Math expressions for dynamic and static power
111 MathExpr dyn_expr, st_expr;
112
113 // Basename of the object in the gem5 stats hierachy
114 std::string basename;
115
116 // Map that contains relevant stats for this power model
117 std::unordered_map<std::string, Stats::Info*> stats_map;
|
| 118
119 // Did the expression fail to evaluate (e.g., because a stat value
120 // can't be resolved)
121 mutable bool failed;
|
111};
112
113#endif
| 122};
123
124#endif
|