1 // 2 // Copyright (c) 2010-2021 Antmicro 3 // 4 // This file is licensed under the MIT License. 5 // Full license text is available in 'licenses/MIT.txt'. 6 // 7 using System; 8 using Antmicro.Renode.Core; 9 using Antmicro.Renode.Core.Structure.Registers; 10 using Antmicro.Renode.Logging; 11 using Antmicro.Renode.Peripherals; 12 using Antmicro.Renode.Peripherals.Timers; 13 using Antmicro.Renode.Time; 14 15 namespace Antmicro.Renode.Peripherals.Miscellaneous 16 { 17 public class DWT: BasicDoubleWordPeripheral, IKnownSize 18 { DWT(IMachine machine, uint frequency)19 public DWT(IMachine machine, uint frequency): base(machine) 20 { 21 CreateRegisters(); 22 cycleCounter = new LimitTimer(machine.ClockSource, frequency, this, "CycleCounter", direction: Direction.Ascending); 23 } 24 Reset()25 public override void Reset() 26 { 27 base.Reset(); 28 cycleCounter.Reset(); 29 } 30 CreateRegisters()31 private void CreateRegisters() 32 { 33 Registers.Control.Define(this) 34 .WithFlag(0, writeCallback: (_, val) => 35 { 36 cycleCounter.Enabled = val; 37 this.Log(LogLevel.Debug, "{0}", val ? "Enabled" : "Disabled"); 38 }, valueProviderCallback: _ => cycleCounter.Enabled, name: "CYCCNTENA") 39 .WithTag("POSTPRESET", 1, 4) 40 .WithTag("POSTCNT", 5, 4) 41 .WithTag("CYCTAP", 9, 1) 42 .WithTag("SYNCTAP", 10, 2) 43 .WithTag("PCSAMPLEENA", 12, 1) 44 .WithReservedBits(13, 3) 45 .WithTag("EXCTRCENA", 16, 1) 46 .WithTag("CPIEVTENA", 17, 1) 47 .WithTag("EXCEVTENA", 18, 1) 48 .WithTag("SLEEPEVTENA", 19, 1) 49 .WithTag("LSUEVTENA", 20, 1) 50 .WithTag("FOLDEVTENA", 21, 1) 51 .WithTag("CYCEVTEN", 22, 1) 52 .WithReservedBits(23, 5) 53 .WithTag("NUMCOMP", 28, 4); 54 Registers.CycleCounter.Define(this) 55 .WithValueField(0, 32, writeCallback: (_, val) => { cycleCounter.Value = val; }, 56 valueProviderCallback: _ => (uint)cycleCounter.Value, name: "CYCCNT"); 57 Registers.Count.Define(this) 58 .WithTag("CPICNT", 0, 8) 59 .WithReservedBits(8, 24); 60 Registers.ExceptionOverheadCounter.Define(this) 61 .WithTag("EXCCNT", 0, 8) 62 .WithReservedBits(8, 24); 63 Registers.SleepCounter.Define(this) 64 .WithTag("SLEEPCNT", 0, 8) 65 .WithReservedBits(8, 24); 66 Registers.LoadStoreUnitCounter.Define(this) 67 .WithTag("LSUCNT", 0, 8) 68 .WithReservedBits(8, 24); 69 Registers.FoldCounter.Define(this) 70 .WithTag("FOLDCNT", 0, 8) 71 .WithReservedBits(8, 24); 72 Registers.ProgramCounterSample.Define(this) 73 .WithTag("EIASAMPLE", 0, 32); 74 Registers.Comparator0.Define(this) 75 .WithTag("COMP", 0, 32); 76 Registers.Mask0.Define(this) 77 .WithTag("MASK", 0, 4) 78 .WithReservedBits(4, 28); 79 Registers.Function0.Define(this) 80 .WithTaggedFlag("FUNCTION", 0) 81 .WithReservedBits(4, 1) 82 .WithTaggedFlag("EMITRANGE", 5) 83 .WithReservedBits(6, 1) 84 .WithTaggedFlag("CYCMATCH", 7) 85 .WithTaggedFlag("DATAVMATCH", 8) 86 .WithTaggedFlag("LNK1ENA", 9) 87 .WithTag("DATAVSIZE", 10, 2) 88 .WithTag("DATAVADDR0", 12, 4) 89 .WithTag("DATAVADDR1", 16, 4) 90 .WithReservedBits(20, 4) 91 .WithTaggedFlag("MATCHED", 24) 92 .WithReservedBits(25, 7); 93 Registers.Comparator1.Define(this) 94 .WithTag("COMP", 0, 32); 95 Registers.Mask1.Define(this) 96 .WithTag("MASK", 0, 4) 97 .WithReservedBits(4, 28); 98 Registers.Function1.Define(this) 99 .WithTaggedFlag("FUNCTION", 0) 100 .WithReservedBits(4, 1) 101 .WithTaggedFlag("EMITRANGE", 5) 102 .WithReservedBits(6, 1) 103 .WithTaggedFlag("CYCMATCH", 7) 104 .WithTaggedFlag("DATAVMATCH", 8) 105 .WithTaggedFlag("LNK1ENA", 9) 106 .WithTag("DATAVSIZE", 10, 2) 107 .WithTag("DATAVADDR0", 12, 4) 108 .WithTag("DATAVADDR1", 16, 4) 109 .WithReservedBits(20, 4) 110 .WithTaggedFlag("MATCHED", 24) 111 .WithReservedBits(25, 7); 112 Registers.Comparator2.Define(this) 113 .WithTag("COMP", 0, 32); 114 Registers.Mask2.Define(this) 115 .WithTag("MASK", 0, 4) 116 .WithReservedBits(4, 28); 117 Registers.Function2.Define(this) 118 .WithTaggedFlag("FUNCTION", 0) 119 .WithReservedBits(4, 1) 120 .WithTaggedFlag("EMITRANGE", 5) 121 .WithReservedBits(6, 1) 122 .WithTaggedFlag("CYCMATCH", 7) 123 .WithTaggedFlag("DATAVMATCH", 8) 124 .WithTaggedFlag("LNK1ENA", 9) 125 .WithTag("DATAVSIZE", 10, 2) 126 .WithTag("DATAVADDR0", 12, 4) 127 .WithTag("DATAVADDR1", 16, 4) 128 .WithReservedBits(20, 4) 129 .WithTaggedFlag("MATCHED", 24) 130 .WithReservedBits(25, 7); 131 Registers.Comparator3.Define(this) 132 .WithTag("COMP", 0, 32); 133 Registers.Mask3.Define(this) 134 .WithTag("MASK", 0, 4) 135 .WithReservedBits(4, 28); 136 Registers.Function3.Define(this) 137 .WithTaggedFlag("FUNCTION", 0) 138 .WithReservedBits(4, 1) 139 .WithTaggedFlag("EMITRANGE", 5) 140 .WithReservedBits(6, 1) 141 .WithTaggedFlag("CYCMATCH", 7) 142 .WithTaggedFlag("DATAVMATCH", 8) 143 .WithTaggedFlag("LNK1ENA", 9) 144 .WithTag("DATAVSIZE", 10, 2) 145 .WithTag("DATAVADDR0", 12, 4) 146 .WithTag("DATAVADDR1", 16, 4) 147 .WithReservedBits(20, 4) 148 .WithTaggedFlag("MATCHED", 24) 149 .WithReservedBits(25, 7); 150 Registers.PeripheralID4.Define(this, 0x04) 151 .WithTag("PID", 0, 32); 152 Registers.PeripheralID5.Define(this, 0x00) 153 .WithTag("PID", 0, 32); 154 Registers.PeripheralID6.Define(this, 0x00) 155 .WithTag("PID", 0, 32); 156 Registers.PeripheralID7.Define(this, 0x00) 157 .WithTag("PID", 0, 32); 158 Registers.PeripheralID0.Define(this, 0x02) 159 .WithTag("PID", 0, 32); 160 Registers.PeripheralID1.Define(this, 0xB0) 161 .WithTag("PID", 0, 32); 162 Registers.PeripheralID2.Define(this, 0x1B) 163 .WithTag("PID", 0, 32); 164 Registers.PeripheralID3.Define(this, 0x00) 165 .WithTag("PID", 0, 32); 166 Registers.ComponentID0.Define(this, 0x0D) 167 .WithTag("CID", 0, 32); 168 Registers.ComponentID1.Define(this, 0xE0) 169 .WithTag("CID", 0, 32); 170 Registers.ComponentID2.Define(this, 0x05) 171 .WithTag("CID", 0, 32); 172 Registers.ComponentID3.Define(this, 0xB1) 173 .WithTag("CID", 0, 32); 174 } 175 176 public long Size => 0x1000; 177 178 private readonly LimitTimer cycleCounter; 179 180 private enum Registers 181 { 182 Control = 0x000, // Control Register 183 CycleCounter = 0x004, // Cycle Count Register 184 Count = 0x008, // Count Register 185 ExceptionOverheadCounter = 0x00C, // Exception OverheadCount Register 186 SleepCounter = 0x010, // Sleep Counter Register 187 LoadStoreUnitCounter = 0x014, // Load-Store-UnitCounter Register 188 FoldCounter = 0x018, // Fold Counter Register 189 ProgramCounterSample = 0x01C, // Program CounterSample Register 190 Comparator0 = 0x020, // ComparatorRegister #0 191 Mask0 = 0x024, // Mask Register #0 192 Function0 = 0x028, // Function Register#0 193 Comparator1 = 0x030, // ComparatorRegister #1 194 Mask1 = 0x034, // Mask Register #1 195 Function1 = 0x038, // Function Register#1 196 Comparator2 = 0x040, // ComparatorRegister #2 197 Mask2 = 0x044, // Mask Register #2 198 Function2 = 0x048, // Function Register#2 199 Comparator3 = 0x050, // ComparatorRegister #3 200 Mask3 = 0x054, // Mask Register #3 201 Function3 = 0x058, // Function Register#3 202 PeripheralID4 = 0xFD0, // Peripheral ID4 203 PeripheralID5 = 0xFD4, // Peripheral ID5 204 PeripheralID6 = 0xFD8, // Peripheral ID6 205 PeripheralID7 = 0xFDC, // Peripheral ID7 206 PeripheralID0 = 0xFE0, // Peripheral ID0 207 PeripheralID1 = 0xFE4, // Peripheral ID1 208 PeripheralID2 = 0xFE8, // Peripheral ID2 209 PeripheralID3 = 0xFEC, // Peripheral ID3 210 ComponentID0 = 0xFF0, // Component ID0 211 ComponentID1 = 0xFF4, // Component ID1 212 ComponentID2 = 0xFF8, // Component ID2 213 ComponentID3 = 0xFFC, // Component ID3 214 } 215 } 216 } 217 218
