1/*
2 * Copyright (c) 2012-2014, TU Delft
3 * Copyright (c) 2012-2014, TU Eindhoven
4 * Copyright (c) 2012-2014, TU Kaiserslautern
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are

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26 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
28 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji
35 *
36 */
37
38#ifndef MEMORY_POWER_MODEL_H
39#define MEMORY_POWER_MODEL_H
40
41#include "MemorySpecification.h"
42#include "CommandAnalysis.h"
43
44namespace Data {
45class MemoryPowerModel {
46 public:
47 // Calculate energy and average power consumption for the given memory
48 // command trace
49 void power_calc(const MemorySpecification& memSpec,
50 const CommandAnalysis& c,
51 int term);
52
53 // Used to calculate self-refresh active energy
54 static double engy_sref(double idd6,
55 double idd3n,
56 double idd5,
57 double vdd,
58 double sref_cycles,
59 double sref_ref_act_cycles,
60 double sref_ref_pre_cycles,
61 double spup_ref_act_cycles,
62 double spup_ref_pre_cycles,
63 double clk);
64
65 int64_t total_cycles;
66
67 struct Energy {
68 // Total energy of all activates
69 double act_energy;
70
71 // Total energy of all precharges
72 double pre_energy;
73
74 // Total energy of all reads
75 double read_energy;
76
77 // Total energy of all writes
78 double write_energy;
79
80 // Total energy of all refreshes
81 double ref_energy;
82
83 // Total background energy of all active standby cycles
84 double act_stdby_energy;
85
86 // Total background energy of all precharge standby cycles
87 double pre_stdby_energy;
88
89 // Total energy of idle cycles in the active mode
90 double idle_energy_act;
91
92 // Total energy of idle cycles in the precharge mode
93 double idle_energy_pre;
94
95 // Total trace/pattern energy
96 double total_energy;
97
98 // Average Power
99 double average_power;
100
101 // Energy consumed in active/precharged fast/slow-exit modes
102 double f_act_pd_energy;
103 double f_pre_pd_energy;
104 double s_act_pd_energy;
105 double s_pre_pd_energy;
106
107 // Energy consumed in self-refresh mode
108 double sref_energy;
109
110 // Energy consumed in auto-refresh during self-refresh mode
111 double sref_ref_energy;
112 double sref_ref_act_energy;
113 double sref_ref_pre_energy;
114
115 // Energy consumed in powering-up from self-refresh mode
116 double spup_energy;
117
118 // Energy consumed in auto-refresh during self-refresh power-up
119 double spup_ref_energy;
120 double spup_ref_act_energy;
121 double spup_ref_pre_energy;
122
123 // Energy consumed in powering-up from active/precharged power-down modes
124 double pup_act_energy;
125 double pup_pre_energy;
126
127 // Energy consumed by IO and Termination
128 double read_io_energy; // Read IO Energy
129 double write_term_energy; // Write Termination Energy
130 double read_oterm_energy; // Read Termination Energy from idle rank
131 double write_oterm_energy; // Write Termination Energy from idle rank
132 // Total IO and Termination Energy
133 double io_term_energy;
134 };
135
136 struct Power {
137 // Power measures corresponding to IO and Termination
138 double IO_power; // Read IO Power
139 double WR_ODT_power; // Write ODT Power
140 double TermRD_power; // Read Termination in idle rank (in dual-rank systems)
141 double TermWR_power; // Write Termination in idle rank (in dual-rank systems)
142
143 // Average Power
144 double average_power;
145 };
146
147 // Print the power and energy
148 void power_print(const MemorySpecification& memSpec,
149 int term,
150 const CommandAnalysis& c) const;
151
152 // To derive IO and Termination Power measures using DRAM specification
153 void io_term_power(const MemorySpecification& memSpec);
154
155 Energy energy;
156 Power power;
157
158 private:
159 double calcIoTermEnergy(int64_t cycles, double period, double power, int64_t numBits) const;
160};
161
162class EnergyDomain {
163 public:
164 EnergyDomain(double voltage, double clkPeriod) :
165 voltage(voltage),
166 clkPeriod(clkPeriod)
167 {}
168
169 double calcTivEnergy(int64_t cycles, double current) const;
170 private:
171 const double voltage;
172 const double clkPeriod;
173};
174
175}
176#endif // ifndef MEMORY_POWER_MODEL_H