1/*
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#include "sim/power/mathexpr_powermodel.hh"
41
42#include <string>
43
44#include "base/statistics.hh"
45#include "params/MathExprPowerModel.hh"
46#include "sim/mathexpr.hh"
47#include "sim/power/thermal_model.hh"
48#include "sim/sim_object.hh"
49
50MathExprPowerModel::MathExprPowerModel(const Params *p)
51 : PowerModelState(p), dyn_expr(p->dyn), st_expr(p->st), failed(false)
52{
53 // Calculate the name of the object we belong to
54 std::vector<std::string> path;
55 tokenize(path, name(), '.', true);
56 // It's something like xyz.power_model.pm2
57 assert(path.size() > 2);
58 for (unsigned i = 0; i < path.size() - 2; i++)
59 basename += path[i] + ".";
60}
61
62void
63MathExprPowerModel::startup()
64{
65 // Create a map with stats and pointers for quick access
66 // Has to be done here, since we need access to the statsList
67 for (auto & i: Stats::statsList()) {
68 if (i->name.find(basename) == 0) {
69 // Add stats for this sim object and its child objects
70 stats_map[i->name.substr(basename.size())] = i;
71 } else if (i->name.find(".") == std::string::npos) {
72 // Add global stats (sim_seconds, for example)
73 stats_map[i->name] = i;
74 }
75 }
76
77 tryEval(st_expr);
78 const bool st_failed = failed;
79
80 tryEval(dyn_expr);
81 const bool dyn_failed = failed;
82
83 if (st_failed || dyn_failed) {
84 const auto *p = dynamic_cast<const Params *>(params());
85 assert(p);
86
87 fatal("Failed to evaluate power expressions:\n%s%s%s\n",
88 st_failed ? p->st : "",
89 st_failed && dyn_failed ? "\n" : "",
90 dyn_failed ? p->dyn : "");
91 }
92}
93
94double
95MathExprPowerModel::eval(const MathExpr &expr) const
96{
97 const double value = tryEval(expr);
98
99 // This shouldn't happen unless something went wrong the equations
100 // were verified in startup().
101 panic_if(failed, "Failed to evaluate power expression '%s'\n",
102 expr.toStr());
103
104 return value;
105}
106
107double
108MathExprPowerModel::tryEval(const MathExpr &expr) const
109{
110 failed = false;
111 const double value = expr.eval(
112 std::bind(&MathExprPowerModel::getStatValue,
113 this, std::placeholders::_1)
114 );
115
116 return value;
117}
118
119
120double
121MathExprPowerModel::getStatValue(const std::string &name) const
122{
123 using namespace Stats;
124
125 // Automatic variables:
126 if (name == "temp") {
127 return _temp;
128 } else if (name == "voltage") {
129 return clocked_object->voltage();
| 1/*
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#include "sim/power/mathexpr_powermodel.hh"
41
42#include <string>
43
44#include "base/statistics.hh"
45#include "params/MathExprPowerModel.hh"
46#include "sim/mathexpr.hh"
47#include "sim/power/thermal_model.hh"
48#include "sim/sim_object.hh"
49
50MathExprPowerModel::MathExprPowerModel(const Params *p)
51 : PowerModelState(p), dyn_expr(p->dyn), st_expr(p->st), failed(false)
52{
53 // Calculate the name of the object we belong to
54 std::vector<std::string> path;
55 tokenize(path, name(), '.', true);
56 // It's something like xyz.power_model.pm2
57 assert(path.size() > 2);
58 for (unsigned i = 0; i < path.size() - 2; i++)
59 basename += path[i] + ".";
60}
61
62void
63MathExprPowerModel::startup()
64{
65 // Create a map with stats and pointers for quick access
66 // Has to be done here, since we need access to the statsList
67 for (auto & i: Stats::statsList()) {
68 if (i->name.find(basename) == 0) {
69 // Add stats for this sim object and its child objects
70 stats_map[i->name.substr(basename.size())] = i;
71 } else if (i->name.find(".") == std::string::npos) {
72 // Add global stats (sim_seconds, for example)
73 stats_map[i->name] = i;
74 }
75 }
76
77 tryEval(st_expr);
78 const bool st_failed = failed;
79
80 tryEval(dyn_expr);
81 const bool dyn_failed = failed;
82
83 if (st_failed || dyn_failed) {
84 const auto *p = dynamic_cast<const Params *>(params());
85 assert(p);
86
87 fatal("Failed to evaluate power expressions:\n%s%s%s\n",
88 st_failed ? p->st : "",
89 st_failed && dyn_failed ? "\n" : "",
90 dyn_failed ? p->dyn : "");
91 }
92}
93
94double
95MathExprPowerModel::eval(const MathExpr &expr) const
96{
97 const double value = tryEval(expr);
98
99 // This shouldn't happen unless something went wrong the equations
100 // were verified in startup().
101 panic_if(failed, "Failed to evaluate power expression '%s'\n",
102 expr.toStr());
103
104 return value;
105}
106
107double
108MathExprPowerModel::tryEval(const MathExpr &expr) const
109{
110 failed = false;
111 const double value = expr.eval(
112 std::bind(&MathExprPowerModel::getStatValue,
113 this, std::placeholders::_1)
114 );
115
116 return value;
117}
118
119
120double
121MathExprPowerModel::getStatValue(const std::string &name) const
122{
123 using namespace Stats;
124
125 // Automatic variables:
126 if (name == "temp") {
127 return _temp;
128 } else if (name == "voltage") {
129 return clocked_object->voltage();
|