diff options
Diffstat (limited to 'ext/dsent/model/std_cells/MUX2.cc')
| -rw-r--r-- | ext/dsent/model/std_cells/MUX2.cc | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/ext/dsent/model/std_cells/MUX2.cc b/ext/dsent/model/std_cells/MUX2.cc new file mode 100644 index 000000000..73f18f7b6 --- /dev/null +++ b/ext/dsent/model/std_cells/MUX2.cc @@ -0,0 +1,420 @@ +#include "model/std_cells/MUX2.h" + +#include <cmath> + +#include "model/PortInfo.h" +#include "model/TransitionInfo.h" +#include "model/EventInfo.h" +#include "model/std_cells/StdCellLib.h" +#include "model/std_cells/CellMacros.h" +#include "model/timing_graph/ElectricalNet.h" +#include "model/timing_graph/ElectricalDriver.h" +#include "model/timing_graph/ElectricalLoad.h" +#include "model/timing_graph/ElectricalDelay.h" + +namespace DSENT +{ + using std::ceil; + using std::max; + + MUX2::MUX2(const String& instance_name_, const TechModel* tech_model_) + : StdCell(instance_name_, tech_model_) + { + initProperties(); + } + + MUX2::~MUX2() + {} + + void MUX2::initProperties() + { + return; + } + + void MUX2::constructModel() + { + // All constructModel should do is create Area/NDDPower/Energy Results as + // well as instantiate any sub-instances using only the hard parameters + + createInputPort("A"); + createInputPort("B"); + createInputPort("S0"); + createOutputPort("Y"); + + createLoad("A_Cap"); + createLoad("B_Cap"); + createLoad("S0_Cap"); + createDelay("A_to_Y_delay"); + createDelay("B_to_Y_delay"); + createDelay("S0_to_Y_delay"); + createDriver("Y_Ron", true); + + ElectricalLoad* a_cap = getLoad("A_Cap"); + ElectricalLoad* b_cap = getLoad("B_Cap"); + ElectricalLoad* s0_cap = getLoad("S0_Cap"); + ElectricalDelay* a_to_y_delay = getDelay("A_to_Y_delay"); + ElectricalDelay* b_to_y_delay = getDelay("B_to_Y_delay"); + ElectricalDelay* s0_to_y_delay = getDelay("S0_to_Y_delay"); + ElectricalDriver* y_ron = getDriver("Y_Ron"); + + getNet("A")->addDownstreamNode(a_cap); + getNet("B")->addDownstreamNode(b_cap); + getNet("S0")->addDownstreamNode(s0_cap); + a_cap->addDownstreamNode(a_to_y_delay); + b_cap->addDownstreamNode(b_to_y_delay); + s0_cap->addDownstreamNode(s0_to_y_delay); + a_to_y_delay->addDownstreamNode(y_ron); + b_to_y_delay->addDownstreamNode(y_ron); + s0_to_y_delay->addDownstreamNode(y_ron); + y_ron->addDownstreamNode(getNet("Y")); + + // Create Area result + createElectricalAtomicResults(); + getEventInfo("Idle")->setStaticTransitionInfos(); + // Create MUX2 Event Energy Result + createElectricalEventAtomicResult("MUX2"); + + + return; + } + + void MUX2::updateModel() + { + // Get parameters + double drive_strength = getDrivingStrength(); + Map<double>* cache = getTechModel()->getStdCellLib()->getStdCellCache(); + + // Standard cell cache string + String cell_name = "MUX2_X" + (String) drive_strength; + + // Get timing parameters + getLoad("A_Cap")->setLoadCap(cache->get(cell_name + "->Cap->A")); + getLoad("B_Cap")->setLoadCap(cache->get(cell_name + "->Cap->B")); + getLoad("S0_Cap")->setLoadCap(cache->get(cell_name + "->Cap->S0")); + + getDelay("A_to_Y_delay")->setDelay(cache->get(cell_name + "->Delay->A_to_Y")); + getDelay("B_to_Y_delay")->setDelay(cache->get(cell_name + "->Delay->B_to_Y")); + getDelay("S0_to_Y_delay")->setDelay(cache->get(cell_name + "->Delay->S0_to_Y")); + + getDriver("Y_Ron")->setOutputRes(cache->get(cell_name + "->DriveRes->Y")); + + // Set the cell area + getAreaResult("Active")->setValue(cache->get(cell_name + "->ActiveArea")); + getAreaResult("Metal1Wire")->setValue(cache->get(cell_name + "->ActiveArea")); + + return; + } + + void MUX2::evaluateModel() + { + return; + } + + void MUX2::useModel() + { + // Get parameters + double drive_strength = getDrivingStrength(); + Map<double>* cache = getTechModel()->getStdCellLib()->getStdCellCache(); + + // Standard cell cache string + String cell_name = "MUX2_X" + (String) drive_strength; + + // Propagate the transition and get the 0->1 transition count + propagateTransitionInfo(); + double P_A = getInputPort("A")->getTransitionInfo().getProbability1(); + double P_B = getInputPort("B")->getTransitionInfo().getProbability1(); + double P_S0 = getInputPort("S0")->getTransitionInfo().getProbability1(); + double S0_num_trans_01 = getInputPort("S0")->getTransitionInfo().getNumberTransitions01(); + double Y_num_trans_01 = getOutputPort("Y")->getTransitionInfo().getNumberTransitions01(); + + // Calculate leakage + double leakage = 0; + leakage += cache->get(cell_name + "->Leakage->!A!B!S0") * (1 - P_A) * (1 - P_B) * (1 - P_S0); + leakage += cache->get(cell_name + "->Leakage->!A!BS0") * (1 - P_A) * (1 - P_B) * P_S0; + leakage += cache->get(cell_name + "->Leakage->!AB!S0") * (1 - P_A) * P_B * (1 - P_S0); + leakage += cache->get(cell_name + "->Leakage->!ABS0") * (1 - P_A) * P_B * P_S0; + leakage += cache->get(cell_name + "->Leakage->A!B!S0") * P_A * (1 - P_B) * (1 - P_S0); + leakage += cache->get(cell_name + "->Leakage->A!BS0") * P_A * (1 - P_B) * P_S0; + leakage += cache->get(cell_name + "->Leakage->AB!S0") * P_A * P_B * (1 - P_S0); + leakage += cache->get(cell_name + "->Leakage->ABS0") * P_A * P_B * P_S0; + getNddPowerResult("Leakage")->setValue(leakage); + + // Get VDD + double vdd = getTechModel()->get("Vdd"); + + // Get capacitances + double s0_b_cap = cache->get(cell_name + "->Cap->S0_b"); + double y_bar_cap = cache->get(cell_name + "->Cap->Y_b"); + double y_cap = cache->get(cell_name + "->Cap->Y"); + double y_load_cap = getNet("Y")->getTotalDownstreamCap(); + // Create mux2 event energy + double mux2_event_energy = 0.0; + mux2_event_energy += (s0_b_cap) * S0_num_trans_01; + mux2_event_energy += (y_bar_cap + y_cap + y_load_cap) * Y_num_trans_01; + mux2_event_energy *= vdd * vdd; + getEventResult("MUX2")->setValue(mux2_event_energy); + + return; + } + + void MUX2::propagateTransitionInfo() + { + // Get input signal transition info + const TransitionInfo& trans_A = getInputPort("A")->getTransitionInfo(); + const TransitionInfo& trans_B = getInputPort("B")->getTransitionInfo(); + const TransitionInfo& trans_S0 = getInputPort("S0")->getTransitionInfo(); + + // Scale all transition information to the highest freq multiplier + double max_freq_mult = max(max(trans_A.getFrequencyMultiplier(), trans_B.getFrequencyMultiplier()), trans_S0.getFrequencyMultiplier()); + const TransitionInfo& scaled_trans_A = trans_A.scaleFrequencyMultiplier(max_freq_mult); + const TransitionInfo& scaled_trans_B = trans_B.scaleFrequencyMultiplier(max_freq_mult); + const TransitionInfo& scaled_trans_S0 = trans_S0.scaleFrequencyMultiplier(max_freq_mult); + + // Compute the probability of each transition on a given cycle + double A_prob_00 = scaled_trans_A.getNumberTransitions00() / max_freq_mult; + double A_prob_01 = scaled_trans_A.getNumberTransitions01() / max_freq_mult; + double A_prob_10 = A_prob_01; + double A_prob_11 = scaled_trans_A.getNumberTransitions11() / max_freq_mult; + double B_prob_00 = scaled_trans_B.getNumberTransitions00() / max_freq_mult; + double B_prob_01 = scaled_trans_B.getNumberTransitions01() / max_freq_mult; + double B_prob_10 = B_prob_01; + double B_prob_11 = scaled_trans_B.getNumberTransitions11() / max_freq_mult; + double S0_prob_00 = scaled_trans_S0.getNumberTransitions00() / max_freq_mult; + double S0_prob_01 = scaled_trans_S0.getNumberTransitions01() / max_freq_mult; + double S0_prob_10 = S0_prob_01; + double S0_prob_11 = scaled_trans_S0.getNumberTransitions11() / max_freq_mult; + + // Compute output probabilities + double Y_prob_00 = S0_prob_00 * A_prob_00 + + S0_prob_01 * (A_prob_00 + A_prob_01) * (B_prob_00 + B_prob_10) + + S0_prob_10 * (A_prob_00 + A_prob_10) * (B_prob_00 + B_prob_01) + + S0_prob_11 * B_prob_00; + double Y_prob_01 = S0_prob_00 * A_prob_01 + + S0_prob_01 * (A_prob_00 + A_prob_01) * (B_prob_01 + B_prob_11) + + S0_prob_10 * (A_prob_01 + A_prob_11) * (B_prob_00 + B_prob_01) + + S0_prob_11 * B_prob_01; + double Y_prob_11 = S0_prob_00 * A_prob_11 + + S0_prob_01 * (A_prob_10 + A_prob_11) * (B_prob_01 + B_prob_11) + + S0_prob_10 * (A_prob_01 + A_prob_11) * (B_prob_10 + B_prob_11) + + S0_prob_11 * B_prob_11; + + // Check that probabilities add up to 1.0 with some finite tolerance + ASSERT(LibUtil::Math::isEqual((Y_prob_00 + Y_prob_01 + Y_prob_01 + Y_prob_11), 1.0), + "[Error] " + getInstanceName() + "Output transition probabilities must add up to 1 (" + + (String) Y_prob_00 + ", " + (String) Y_prob_01 + ", " + (String) Y_prob_11 + ")!"); + + // Turn probability of transitions per cycle into number of transitions per time unit + TransitionInfo trans_Y(Y_prob_00 * max_freq_mult, Y_prob_01 * max_freq_mult, Y_prob_11 * max_freq_mult); + getOutputPort("Y")->setTransitionInfo(trans_Y); + + return; + } + + // Creates the standard cell, characterizes and abstracts away the details + void MUX2::cacheStdCell(StdCellLib* cell_lib_, double drive_strength_) + { + // Get parameters + double gate_pitch = cell_lib_->getTechModel()->get("Gate->PitchContacted"); + Map<double>* cache = cell_lib_->getStdCellCache(); + + // Standard cell cache string + String cell_name = "MUX2_X" + (String) drive_strength_; + + Log::printLine("=== " + cell_name + " ==="); + + // Now actually build the full standard cell model + createInputPort("A"); + createInputPort("B"); + createInputPort("S0"); + createOutputPort("Y"); + + createNet("S0_b"); + createNet("Y_b"); + + // Adds macros + CellMacros::addInverter(this, "INV1", false, true, "S0", "S0_b"); + CellMacros::addInverter(this, "INV2", false, true, "Y_b", "Y"); + CellMacros::addTristate(this, "INVZ1", true, true, true, true, "A", "S0_b", "S0", "Y_b"); + CellMacros::addTristate(this, "INVZ2", true, true, true, true, "B", "S0", "S0_b", "Y_b"); + + // I have no idea how to size each of the parts haha + CellMacros::updateInverter(this, "INV1", drive_strength_ * 0.250); + CellMacros::updateInverter(this, "INV2", drive_strength_ * 1.000); + CellMacros::updateTristate(this, "INVZ1", drive_strength_ * 0.500); + CellMacros::updateTristate(this, "INVZ2", drive_strength_ * 0.500); + + // Cache area result + double area = 0.0; + area += gate_pitch * getTotalHeight() * 1; + area += gate_pitch * getTotalHeight() * getGenProperties()->get("INV1_GatePitches").toDouble(); + area += gate_pitch * getTotalHeight() * getGenProperties()->get("INV2_GatePitches").toDouble(); + area += gate_pitch * getTotalHeight() * getGenProperties()->get("INVZ1_GatePitches").toDouble(); + area += gate_pitch * getTotalHeight() * getGenProperties()->get("INVZ2_GatePitches").toDouble(); + cache->set(cell_name + "->ActiveArea", area); + Log::printLine(cell_name + "->ActiveArea=" + (String) area); + + // -------------------------------------------------------------------- + // Cache Leakage Power (for every single signal combination) + // -------------------------------------------------------------------- + double leakage_000 = 0; //!A, !B, !S0 + double leakage_001 = 0; //!A, !B, S0 + double leakage_010 = 0; //!A, B, !S0 + double leakage_011 = 0; //!A, B, S0 + double leakage_100 = 0; //A, !B, !S0 + double leakage_101 = 0; //A, !B, S0 + double leakage_110 = 0; //A, B, !S0 + double leakage_111 = 0; //A, B, S0 + + //This is so painful... + leakage_000 += getGenProperties()->get("INV1_LeakagePower_0").toDouble(); + leakage_000 += getGenProperties()->get("INV2_LeakagePower_1").toDouble(); + leakage_000 += getGenProperties()->get("INVZ1_LeakagePower_100_1").toDouble(); + leakage_000 += getGenProperties()->get("INVZ2_LeakagePower_010_1").toDouble(); + + leakage_001 += getGenProperties()->get("INV1_LeakagePower_1").toDouble(); + leakage_001 += getGenProperties()->get("INV2_LeakagePower_1").toDouble(); + leakage_001 += getGenProperties()->get("INVZ1_LeakagePower_010_1").toDouble(); + leakage_001 += getGenProperties()->get("INVZ2_LeakagePower_100_1").toDouble(); + + leakage_010 += getGenProperties()->get("INV1_LeakagePower_0").toDouble(); + leakage_010 += getGenProperties()->get("INV2_LeakagePower_1").toDouble(); + leakage_010 += getGenProperties()->get("INVZ1_LeakagePower_100_1").toDouble(); + leakage_010 += getGenProperties()->get("INVZ2_LeakagePower_011_1").toDouble(); + + leakage_011 += getGenProperties()->get("INV1_LeakagePower_1").toDouble(); + leakage_011 += getGenProperties()->get("INV2_LeakagePower_0").toDouble(); + leakage_011 += getGenProperties()->get("INVZ1_LeakagePower_010_0").toDouble(); + leakage_011 += getGenProperties()->get("INVZ2_LeakagePower_101_0").toDouble(); + + leakage_100 += getGenProperties()->get("INV1_LeakagePower_0").toDouble(); + leakage_100 += getGenProperties()->get("INV2_LeakagePower_0").toDouble(); + leakage_100 += getGenProperties()->get("INVZ1_LeakagePower_101_0").toDouble(); + leakage_100 += getGenProperties()->get("INVZ2_LeakagePower_010_0").toDouble(); + + leakage_101 += getGenProperties()->get("INV1_LeakagePower_1").toDouble(); + leakage_101 += getGenProperties()->get("INV2_LeakagePower_0").toDouble(); + leakage_101 += getGenProperties()->get("INVZ1_LeakagePower_011_1").toDouble(); + leakage_101 += getGenProperties()->get("INVZ2_LeakagePower_100_1").toDouble(); + + leakage_110 += getGenProperties()->get("INV1_LeakagePower_1").toDouble(); + leakage_110 += getGenProperties()->get("INV2_LeakagePower_1").toDouble(); + leakage_110 += getGenProperties()->get("INVZ1_LeakagePower_101_0").toDouble(); + leakage_110 += getGenProperties()->get("INVZ2_LeakagePower_011_0").toDouble(); + + leakage_111 += getGenProperties()->get("INV1_LeakagePower_1").toDouble(); + leakage_111 += getGenProperties()->get("INV2_LeakagePower_1").toDouble(); + leakage_111 += getGenProperties()->get("INVZ1_LeakagePower_011_0").toDouble(); + leakage_111 += getGenProperties()->get("INVZ2_LeakagePower_101_0").toDouble(); + + cache->set(cell_name + "->Leakage->!A!B!S0", leakage_000); + cache->set(cell_name + "->Leakage->!A!BS0", leakage_001); + cache->set(cell_name + "->Leakage->!AB!S0", leakage_010); + cache->set(cell_name + "->Leakage->!ABS0", leakage_011); + cache->set(cell_name + "->Leakage->A!B!S0", leakage_100); + cache->set(cell_name + "->Leakage->A!BS0", leakage_101); + cache->set(cell_name + "->Leakage->AB!S0", leakage_110); + cache->set(cell_name + "->Leakage->ABS0", leakage_111); + Log::printLine(cell_name + "->Leakage->!A!B!S0=" + (String) leakage_000); + Log::printLine(cell_name + "->Leakage->!A!BS0=" + (String) leakage_001); + Log::printLine(cell_name + "->Leakage->!AB!S0=" + (String) leakage_010); + Log::printLine(cell_name + "->Leakage->!ABS0=" + (String) leakage_011); + Log::printLine(cell_name + "->Leakage->A!B!S0=" + (String) leakage_100); + Log::printLine(cell_name + "->Leakage->A!BS0=" + (String) leakage_101); + Log::printLine(cell_name + "->Leakage->AB!S0=" + (String) leakage_110); + Log::printLine(cell_name + "->Leakage->ABS0=" + (String) leakage_111); + + // Cache event energy results + /* + double event_a_flip = 0.0; + event_a_flip += getGenProperties()->get("INVZ1_A_Flip").toDouble(); + cache->set(cell_name + "->Event_A_Flip", event_a_flip); + Log::printLine(cell_name + "->Event_A_Flip=" + (String) event_a_flip); + + double event_b_flip = 0.0; + event_b_flip += getGenProperties()->get("INVZ1_A_Flip").toDouble(); + cache->set(cell_name + "->Event_B_Flip", event_b_flip); + Log::printLine(cell_name + "->Event_B_Flip=" + (String) event_b_flip); + + double event_s0_flip = 0.0; + event_s0_flip += getGenProperties()->get("INV1_A_Flip").toDouble(); + event_s0_flip += getGenProperties()->get("INV1_ZN_Flip").toDouble(); + event_s0_flip += getGenProperties()->get("INVZ1_OE_Flip").toDouble() + getGenProperties()->get("INVZ1_OEN_Flip").toDouble(); + event_s0_flip += getGenProperties()->get("INVZ2_OE_Flip").toDouble() + getGenProperties()->get("INVZ2_OEN_Flip").toDouble(); + cache->set(cell_name + "->Event_S0_Flip", event_s0_flip); + Log::printLine(cell_name + "->Event_S0_Flip=" + (String) event_s0_flip); + + double event_y_flip = 0.0; + event_y_flip += getGenProperties()->get("INVZ1_ZN_Flip").toDouble(); + event_y_flip += getGenProperties()->get("INVZ2_ZN_Flip").toDouble(); + event_y_flip += getGenProperties()->get("INV2_A_Flip").toDouble(); + event_y_flip += getGenProperties()->get("INV2_ZN_Flip").toDouble(); + cache->set(cell_name + "->Event_Y_Flip", event_y_flip); + Log::printLine(cell_name + "->Event_Y_Flip=" + (String) event_y_flip); + + double a_cap = getLoad("INVZ1_CgA")->getLoadCap(); + double b_cap = getLoad("INVZ2_CgA")->getLoadCap(); + double s0_cap = getLoad("INV1_CgA")->getLoadCap() + getLoad("INVZ1_CgOEN")->getLoadCap() + getLoad("INVZ2_CgOE")->getLoadCap(); + double y_ron = getDriver("INV2_RonZN")->getOutputRes(); + */ + // -------------------------------------------------------------------- + + // -------------------------------------------------------------------- + // Get Node capacitances + // -------------------------------------------------------------------- + double a_cap = getNet("A")->getTotalDownstreamCap(); + double b_cap = getNet("B")->getTotalDownstreamCap(); + double s0_cap = getNet("S0")->getTotalDownstreamCap(); + double s0_b_cap = getNet("S0_b")->getTotalDownstreamCap(); + double y_b_cap = getNet("Y_b")->getTotalDownstreamCap(); + double y_cap = getNet("Y")->getTotalDownstreamCap(); + + cache->set(cell_name + "->Cap->A", a_cap); + cache->set(cell_name + "->Cap->B", b_cap); + cache->set(cell_name + "->Cap->S0", s0_cap); + cache->set(cell_name + "->Cap->S0_b", s0_b_cap); + cache->set(cell_name + "->Cap->Y_b", y_b_cap); + cache->set(cell_name + "->Cap->Y", y_cap); + + Log::printLine(cell_name + "->Cap->A=" + (String) a_cap); + Log::printLine(cell_name + "->Cap->B=" + (String) b_cap); + Log::printLine(cell_name + "->Cap->S0=" + (String) s0_cap); + Log::printLine(cell_name + "->Cap->S0_b=" + (String) s0_b_cap); + Log::printLine(cell_name + "->Cap->Y_b=" + (String) y_b_cap); + Log::printLine(cell_name + "->Cap->Y=" + (String) y_cap); + // -------------------------------------------------------------------- + + // -------------------------------------------------------------------- + // Build Internal Delay Model + // -------------------------------------------------------------------- + // Build abstracted timing model + double y_ron = getDriver("INV2_RonZN")->getOutputRes(); + + double a_to_y_delay = 0.0; + a_to_y_delay += getDriver("INVZ1_RonZN")->calculateDelay(); + a_to_y_delay += getDriver("INV2_RonZN")->calculateDelay(); + + double b_to_y_delay = 0.0; + b_to_y_delay += getDriver("INVZ1_RonZN")->calculateDelay(); + b_to_y_delay += getDriver("INV2_RonZN")->calculateDelay(); + + double s0_to_y_delay = 0.0; + s0_to_y_delay += getDriver("INV1_RonZN")->calculateDelay(); + s0_to_y_delay += max(getDriver("INVZ1_RonZN")->calculateDelay(), getDriver("INVZ1_RonZN")->calculateDelay()); + s0_to_y_delay += getDriver("INV2_RonZN")->calculateDelay(); + + cache->set(cell_name + "->DriveRes->Y", y_ron); + cache->set(cell_name + "->Delay->A_to_Y", a_to_y_delay); + cache->set(cell_name + "->Delay->B_to_Y", b_to_y_delay); + cache->set(cell_name + "->Delay->S0_to_Y", s0_to_y_delay); + + Log::printLine(cell_name + "->DriveRes->Y=" + (String) y_ron); + Log::printLine(cell_name + "->Delay->A_to_Y=" + (String) a_to_y_delay); + Log::printLine(cell_name + "->Delay->B_to_Y=" + (String) b_to_y_delay); + Log::printLine(cell_name + "->Delay->S0_to_Y=" + (String) s0_to_y_delay); + // -------------------------------------------------------------------- + + return; + } + +} // namespace DSENT + |