PlatformIntegrator.cc

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/*
    Copyright (c) 2002-2010 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file PlatformIntegerator.cc
 *
 * Implementation of PlatformIntegrator class.
 *
 * @author Otto Esko 2010 (otto.esko-no.spam-tut.fi)
 * @note rating: red
 */
 
#include <iostream>
#include <vector>
#include <string>
#include "PlatformIntegrator.hh"
#include "MemoryGenerator.hh"
#include "FileSystem.hh"
#include "StringTools.hh"
#include "Exception.hh"
#include "Netlist.hh"
#include "NetlistBlock.hh"
#include "NetlistPort.hh"
#include "VHDLNetlistWriter.hh"
#include "ProjectFileGenerator.hh"
#include "Machine.hh"
#include "HWOperation.hh"
#include "MachineImplementation.hh"
#include "FUPort.hh"
#include "FUEntry.hh"
#include "FUArchitecture.hh"
#include "MathTools.hh"
#include "HDBManager.hh"
#include "HDBRegistry.hh"
#include "FUImplementation.hh"
#include "FUExternalPort.hh"
using std::vector;
using std::endl;
using std::multimap;
using ProGe::NetlistBlock;
using ProGe::NetlistPort;
using ProGe::Netlist;
using TTAMachine::FunctionUnit;
 
const TCEString PlatformIntegrator::TTA_CORE_CLK = "clk";
const TCEString PlatformIntegrator::TTA_CORE_RSTX = "rstx";
 
PlatformIntegrator::PlatformIntegrator()
    : machine_(NULL),
      idf_(NULL),
      integratorBlock_(NULL),
      hdl_(ProGe::VHDL),
      progeOutputDir_(""),
      coreEntityName_(""),
      outputDir_(""),
      programName_(""),
      targetFrequency_(0),
      warningStream_(std::cout),
      errorStream_(std::cerr),
      ttaCores_(NULL),
      imem_(),
      dmemType_(UNKNOWN),
      dmem_(),
      lsus_(),
      clkPort_(NULL),
      resetPort_(NULL),
      unconnectedPorts_(NULL) {
    imem_.type = UNKNOWN;
}
 
PlatformIntegrator::PlatformIntegrator(
    const TTAMachine::Machine* machine, const IDF::MachineImplementation* idf,
    ProGe::HDL hdl, TCEString progeOutputDir, TCEString coreEntityName,
    TCEString outputDir, TCEString programName, int targetClockFreq,
    std::ostream& warningStream, std::ostream& errorStream,
    const MemInfo& imem, MemType dmemType)
    : machine_(machine),
      idf_(idf),
      integratorBlock_(NULL),
      hdl_(hdl),
      progeOutputDir_(progeOutputDir),
      sharedOutputDir_(""),
      coreEntityName_(coreEntityName),
      outputDir_(outputDir),
      programName_(programName),
      targetFrequency_(targetClockFreq),
      warningStream_(warningStream),
      errorStream_(errorStream),
      ttaCores_(NULL),
      imem_(imem),
      dmemType_(dmemType),
      dmem_(),
      lsus_(),
      clkPort_(NULL),
      resetPort_(NULL),
      unconnectedPorts_(NULL) {
    integratorBlock_ =
        new NetlistBlock(platformEntityName(), platformEntityName() + "inst");
 
    createOutputDir();
}
 
PlatformIntegrator::~PlatformIntegrator() { delete integratorBlock_; }
 
TCEString 
PlatformIntegrator::coreEntityName() const {
    
    return coreEntityName_;
}
 
 
TCEString
PlatformIntegrator::programName() const {
 
    return programName_;
}
 
 
TCEString 
PlatformIntegrator::progeFilePath(TCEString fileName, bool absolute) const {
 
    TCEString pathToFile =
        progeOutputDir_ + FileSystem::DIRECTORY_SEPARATOR + fileName;
 
    if (absolute) {
        pathToFile = FileSystem::absolutePathOf(pathToFile);
    }
 
    return pathToFile;
}
 
 
TCEString
PlatformIntegrator::outputFilePath(
    TCEString fileName, bool absolute) const {
 
    TCEString pathToFile =
        outputDir_ + FileSystem::DIRECTORY_SEPARATOR + fileName;
    
    if (absolute) {
        pathToFile = FileSystem::absolutePathOf(pathToFile);
    }
    
    return pathToFile;
}
 
 
void
PlatformIntegrator::setSharedOutputDir(const TCEString& sharedDir) {
 
    if (FileSystem::absolutePathOf(sharedDir) != 
        FileSystem::absolutePathOf(progeOutputDir_)) {
        sharedOutputDir_ = sharedDir;
    }
}
 
 
TCEString
PlatformIntegrator::outputPath() const {
    return outputDir_;
}
 
 
TCEString
PlatformIntegrator::chopSignalToTag(
    const TCEString& original,
    const TCEString& tag) const {
 
    TCEString signal = original;
    if (original.find(tag) != TCEString::npos) {
        signal = original.substr(original.find(tag));
    }
    return StringTools::trim(signal);
}
 
 
void 
PlatformIntegrator::progeOutputHdlFiles(
    std::vector<TCEString>& files) const {
 
    bool makeAbsolute = false;
    try {
        TCEString gcuPath = 
            progeOutputDir_ + FileSystem::DIRECTORY_SEPARATOR + "gcu_ic";
        std::vector<std::string> gcuFiles = 
            FileSystem::directoryContents(gcuPath, makeAbsolute);
 
        for (unsigned int i = 0; i < gcuFiles.size(); i++) {
            files.push_back(gcuFiles.at(i));
        }
    } catch (FileNotFound& e) {
        errorStream() << "Error: " << e.errorMessage() << std::endl;
        throw e;
    }
    
    try {
        bool foundImemMau = false;
        TCEString imemMau = coreEntityName() + "_imem_mau_pkg.vhdl";
 
        TCEString vhdlPath =
            progeOutputDir_ + FileSystem::DIRECTORY_SEPARATOR + "vhdl";
        std::vector<std::string> vhdlFiles =
            FileSystem::directoryContents(vhdlPath, makeAbsolute);
        for (unsigned int i = 0; i < vhdlFiles.size(); i++) {
            if (vhdlFiles.at(i).find(imemMau) != TCEString::npos) {
                foundImemMau = true;
            }
            files.push_back(vhdlFiles.at(i));
        }
        
        // imem_mau_pkg was not yet present, but add it to file list
        if (!foundImemMau) {
            TCEString path = 
                vhdlPath + FileSystem::DIRECTORY_SEPARATOR + imemMau;
            files.push_back(path);
        }
    } catch (FileNotFound& e) {
        errorStream() << "Error: " << e.errorMessage() << std::endl;
        throw e;
    }
 
    if (!sharedOutputDir_.empty()) {
        try {
            std::string sharedVhdl =
                sharedOutputDir_ + FileSystem::DIRECTORY_SEPARATOR + "vhdl";
            std::vector<std::string> sharedFiles = 
                FileSystem::directoryContents(sharedVhdl, makeAbsolute);
            for (unsigned int i = 0; i < sharedFiles.size(); i++) {
                files.push_back(sharedFiles.at(i));
            }
        } catch (FileNotFound& e) {
            errorStream() << "Error: " << e.errorMessage() << std::endl;
            throw e;
        }
    }
}
 
 
void
PlatformIntegrator::createOutputDir() {
 
    TCEString absolute = FileSystem::absolutePathOf(outputDir_);
    if (!FileSystem::createDirectory(absolute)) {
        throw IOException(__FILE__, __LINE__, "PlatformIntegrator",
                          "Couldn't create dir " + absolute);
    }
}
 
 
std::ostream&
PlatformIntegrator::warningStream() const {
 
    return warningStream_;
}
 
 
std::ostream&
PlatformIntegrator::errorStream() const {
 
    return errorStream_;
}
 
 
int
PlatformIntegrator::targetClockFrequency() const {
 
    return targetFrequency_;
}
 
ProGe::NetlistBlock*
PlatformIntegrator::integratorBlock() {
    assert(integratorBlock_ != NULL);
    return integratorBlock_;
}
 
const TTAMachine::Machine*
PlatformIntegrator::machine() const {
 
    return machine_;
}
 
 
const IDF::MachineImplementation*
PlatformIntegrator::idf() const {
 
    return idf_;
}
 
 
TCEString
PlatformIntegrator::platformEntityName() const {
 
    return coreEntityName() + "_toplevel";
}
 
void
PlatformIntegrator::initPlatformNetlist(
    const ProGe::NetlistBlock* progeBlock) {
    NetlistBlock* highestBlock = integratorBlock_;
    // Must add ports to highest block *before* copying tta toplevel
    clkPort_ = new NetlistPort(
        TTA_CORE_CLK, "0", 1, ProGe::BIT, ProGe::IN, *highestBlock);
    resetPort_ = new NetlistPort(
        TTA_CORE_RSTX, "0", 1, ProGe::BIT, ProGe::IN, *highestBlock);
    copyProgeBlockToNetlist(progeBlock);
 
    if (dmemType_ != NONE) {
        parseDataMemories();
    }
}
 
 
void
PlatformIntegrator::parseDataMemories() {
    TTAMachine::Machine::FunctionUnitNavigator fuNav =
        machine_->functionUnitNavigator();
    for (int i = 0; i < fuNav.count(); i++) {
        TTAMachine::FunctionUnit* fu = fuNav.item(i);
        if (fu->hasAddressSpace()) {
            TTAMachine::AddressSpace* as = fu->addressSpace();
 
            bool isLSU = false;
            for (int i = 0; i < fu->operationCount(); ++i) {
                std::string operation = fu->operation(i)->name();
                std::string prefix = operation.substr(0, 2);
                if (prefix == "ld" || prefix == "st") {
                    isLSU = true;
                    break;
                }
            }
 
            if (isLSU) {
                dmem_[as] = readLsuParameters(*fu);
                lsus_.push_back(fu);
            }
        }
    }
}
 
void
PlatformIntegrator::clearDataMemories() {
    dmem_.clear();
    lsus_.clear();
}
 
std::vector<std::string>
PlatformIntegrator::loadFUExternalPorts(TTAMachine::FunctionUnit& fu) const {
    if (idf()->hasFUImplementation(fu.name())) {
        IDF::FUImplementationLocation location =
            idf()->fuImplementation(fu.name());
        TCEString hdb = location.hdbFile();
        int id = location.id();
        HDB::HDBManager& manager = HDB::HDBRegistry::instance().hdb(hdb);
        HDB::FUEntry* entry = manager.fuByEntryID(id);
 
        if (!entry->hasImplementation()) {
            TCEString msg = "HDB entry for " + fu.name() +
                            " does not contain " + "implementation!";
            throw InvalidData(__FILE__, __LINE__, "PlatformIntegrator", msg);
        }
 
        auto implementation = entry->implementation();
 
        std::vector<std::string> ports;
        for (int i = 0; i > implementation.externalPortCount(); ++i) {
            ports.push_back(implementation.externalPort(i).name());
        }
        return ports;
    } else if (idf()->hasFUGeneration(fu.name())) {
        // quick fix: assume AlmaIF ports
        std::vector<std::string> ports = {
            "avalid_out", "aready_in",  "aaddr_out", "awren_out", "astrb_out",
            "rvalid_in",  "rready_out", "rdata_in",  "adata_out"};
        return ports;
    } else {
        TCEString msg = "Function Unit " + fu.name() + " does not have an " +
                        "implementation!";
        throw InvalidData(__FILE__, __LINE__, "PlatformIntegrator", msg);
    }
}
 
MemInfo
PlatformIntegrator::readLsuParameters(const TTAMachine::FunctionUnit& lsu) {
    
    MemInfo dmem;
    dmem.type = dmemType_;
    dmem.mauWidth = lsu.addressSpace()->width();
    unsigned int internalAddrw =
        MathTools::requiredBits(lsu.addressSpace()->end());
    unsigned int dataWidth = 0;
    for (int i = 0; i < lsu.operationPortCount(); i++) {
        TTAMachine::FUPort* port = lsu.operationPort(i);
        if (port->isInput() && !port->isTriggering()) {
            dataWidth = std::max((unsigned)port->width(), dataWidth);
        }
    }
    dmem.widthInMaus = static_cast<int>(
        ceil(static_cast<double>(dataWidth)/dmem.mauWidth));
     int bytemaskWidth = 0;
    if (dmem.widthInMaus > 1) {
        unsigned int maus = static_cast<unsigned int>(dmem.widthInMaus) - 1;
        bytemaskWidth = MathTools::requiredBits(maus);
    }
    dmem.portAddrw = internalAddrw - bytemaskWidth;
    unsigned long int lastAddr = lsu.addressSpace()->end();
    dmem.asAddrw = MathTools::requiredBits(lastAddr);
    dmem.asName = lsu.addressSpace()->name();
    dmem.lsuName = lsu.name();
    dmem.isShared = false;
    return dmem;
}
 
bool
PlatformIntegrator::integrateCore(
    const ProGe::NetlistBlock& cores, int coreId) {
    TCEString clkPortName = PlatformIntegrator::TTA_CORE_CLK;
    TCEString resetPortName = PlatformIntegrator::TTA_CORE_RSTX;
    const NetlistPort* coreClk = cores.port(clkPortName);
    const NetlistPort* coreRstx = cores.port(resetPortName);
    integratorBlock()->netlist().connect(*clockPort(), *coreClk);
    integratorBlock()->netlist().connect(*resetPort(), *coreRstx);
 
    if (!createMemories(coreId)) {
        return false;
    }
 
    exportUnconnectedPorts(coreId);
 
    return true;
}
 
void
PlatformIntegrator::exportUnconnectedPorts(int /* coreId */) {
    const NetlistBlock& core = progeBlock();
    for (size_t i = 0; i < core.portCount(); i++) {
        const NetlistPort& port = core.port(i);
        if (!integratorBlock()->netlist().isPortConnected(port)) {
            connectToplevelPort(port);
        }
    }
}
 
void
PlatformIntegrator::connectToplevelPort(
    const ProGe::NetlistPort& corePort, const TCEString signalPrefix) {
    TCEString toplevelName = corePort.name();
    if (chopTaggedSignals() && hasPinTag(toplevelName)) {
        toplevelName = signalPrefix + chopSignalToTag(toplevelName, pinTag());
    }
    NetlistPort* topPort = NULL;
    if (corePort.realWidthAvailable()) {
        int width = corePort.realWidth();
        if (width == 0 || width == 1) {
            topPort = new NetlistPort(
                toplevelName, corePort.widthFormula(), corePort.realWidth(),
                ProGe::BIT, corePort.direction(), *integratorBlock());
        } else {
            topPort = new NetlistPort(
                toplevelName, corePort.widthFormula(), corePort.realWidth(),
                ProGe::BIT_VECTOR, corePort.direction(), *integratorBlock());
        }
    } else {
        topPort = new NetlistPort(
            toplevelName, corePort.widthFormula(), corePort.dataType(),
            corePort.direction(), *integratorBlock());
    }
    if (topPort->dataType() == corePort.dataType()) {
        integratorBlock()->netlist().connect(*topPort, corePort);
    } else {
        integratorBlock()->netlist().connect(*topPort, corePort, 0, 0, 1);
    }
}
 
bool
PlatformIntegrator::hasPinTag(const TCEString& signal) const {
    
    return signal.find(pinTag()) != TCEString::npos;
}
 
 
void
PlatformIntegrator::copyProgeBlockToNetlist(
    const ProGe::NetlistBlock* progeBlock) {
    ttaCores_ = progeBlock->shallowCopy("core");
    NetlistBlock& top = *integratorBlock_;
    top.addSubBlock(ttaCores_);
 
    // copy parameters to the current toplevel
    for (size_t i = 0; i < ttaCores_->parameterCount(); i++) {
        // Filter out some parameters not usable in the integrator block.
        if (ttaCores_->parameter(i).name() == "core_id") {
            continue;
        }
 
        top.setParameter(ttaCores_->parameter(i));
    }
 
    // copy package references to the current toplevel
    for (size_t i = 0; i < ttaCores_->packageCount(); i++) {
        top.addPackage(ttaCores_->package(i));
    }
 
    for (size_t i = 0; i < ttaCores_->netlist().parameterCount(); i++) {
        top.netlist().setParameter(ttaCores_->netlist().parameter(i));
    }
}
 
 
const ProGe::NetlistBlock&
PlatformIntegrator::progeBlock() const {
    assert(ttaCores_ != NULL);
    return *ttaCores_;
}
 
 
const ProGe::NetlistBlock&
PlatformIntegrator::toplevelBlock() const {
    return *integratorBlock_;
}
 
bool
PlatformIntegrator::createMemories(int coreId) {
    assert(imem_.type != UNKNOWN);
 
    int imemIndex = 0;
    MemoryGenerator& imemGen = imemInstance(imem_, coreId);
    vector<TCEString> imemFiles;
 
    if (imem_.type != NONE) {
        if (!generateMemory(imemGen, imemFiles, imemIndex, coreId)) {
            return false;
        }
        if (imemFiles.size() != 0) {
            projectFileGenerator()->addHdlFiles(imemFiles);
        }
    }
 
    for (unsigned int i = 0; i < lsus_.size(); i++) {
        TTAMachine::FunctionUnit* lsuArch = lsus_.at(i);
        std::vector<std::string> ports = loadFUExternalPorts(*lsuArch);
 
        TTAMachine::AddressSpace* as = lsuArch->addressSpace();
        assert(dmem_.find(as) != dmem_.end() && "Address space not found!");
 
        MemoryGenerator& dmemGen =
            dmemInstance(dmem_.find(as)->second, *lsuArch, ports);
        vector<TCEString> dmemFiles;
        if (!generateMemory(dmemGen, dmemFiles, i, coreId)) {
            return false;
        }
        if (dmemFiles.size() != 0) {
            projectFileGenerator()->addHdlFiles(dmemFiles);
        }
    }
    return true;
}
 
bool
PlatformIntegrator::generateMemory(
    MemoryGenerator& memGen, std::vector<TCEString>& generatedFiles,
    int memIndex, int coreId) {
    const NetlistBlock& ttaCores = progeBlock();
 
    vector<TCEString> reasons;
    if (!memGen.isCompatible(ttaCores, coreId, reasons)) {
        errorStream() << "TTA core doesn't have compatible memory "
                      <<"interface:" << std::endl;
        for (unsigned int i = 0; i < reasons.size(); i++) {
            errorStream() << reasons.at(i) << std::endl;
        }
        return false;
    }
 
    memGen.addMemory(ttaCores, *integratorBlock(), memIndex, coreId);
 
    if (memGen.generatesComponentHdlFile()) {
        generatedFiles =
            memGen.generateComponentFile(outputPath());
        if (generatedFiles.size() == 0) {
            errorStream() << "Failed to create mem component" << endl;
            return false;
        }
    }
 
    return true;
}
 
void
PlatformIntegrator::writeNewToplevel() {
    
    ProGe::NetlistWriter* writer;
    if (hdl_ == ProGe::VHDL) {
        writer = new ProGe::VHDLNetlistWriter(*integratorBlock_);
    } else {
        assert(false);
    }
 
    TCEString platformDir = outputPath();
    writer->write(platformDir);
    delete writer;
 
    
    TCEString toplevelFile =
        outputFilePath(coreEntityName() + "_toplevel.vhdl");
    if (!FileSystem::fileExists(toplevelFile)) {
        TCEString msg = "NetlistWriter failed to create file " + toplevelFile;
        throw FileNotFound(__FILE__, __LINE__, "platformIntegrator", msg);
    }
    projectFileGenerator()->addHdlFile(toplevelFile);
 
    TCEString paramFile =
        outputFilePath(platformEntityName() + "_params_pkg.vhdl");
    if (FileSystem::fileExists(paramFile)) {
        projectFileGenerator()->addHdlFile(paramFile);
    }
}
 
 
void
PlatformIntegrator::addProGeFiles() const {
 
    vector<TCEString> progeOutFiles;
    progeOutputHdlFiles(progeOutFiles);
    for (unsigned int i = 0; i < progeOutFiles.size(); i++) {
        projectFileGenerator()->addHdlFile(progeOutFiles.at(i));
    }
}
 
 
const MemInfo&
PlatformIntegrator::imemInfo() const {
 
    return imem_;
}
 
const MemInfo&
PlatformIntegrator::dmemInfo(TTAMachine::AddressSpace* as) const {
 
    if (as == NULL || dmem_.find(as) == dmem_.end()) {
        TCEString msg = "Invalid address space";
        throw InvalidData(__FILE__, __LINE__, "PlatformIntegrator", msg);
    }
    return dmem_.find(as)->second;
}
 
const MemInfo&
PlatformIntegrator::dmemInfo(int index) const {
 
    if (index > static_cast<int>(dmem_.size())) {
        TCEString msg = "Data memory index out of range";
        throw OutOfRange(__FILE__, __LINE__, "PlatformIntegrator", msg);
    }
    std::map<TTAMachine::AddressSpace*, MemInfo>::const_iterator iter =
        dmem_.begin();
    int i = 0;
    while (i < index) {
        iter++;
        i++;
    }
    assert(iter != dmem_.end());
    return iter->second;
}
 
int
PlatformIntegrator::dmemCount() const {
 
    return dmem_.size();
}
 
 
ProGe::NetlistPort*
PlatformIntegrator::clockPort() const {
 
    if (clkPort_ == NULL) {
        TCEString msg;
        msg << "PlatformIntegrator was not initialized properly";
        throw ObjectNotInitialized(__FILE__, __LINE__, __func__, msg);
    }
    return clkPort_;
}
 
 
ProGe::NetlistPort*
PlatformIntegrator::resetPort() const {
 
    if (resetPort_ == NULL) {
        TCEString msg;
        msg << "PlatformIntegrator was not initialized properly";
        throw ObjectNotInitialized(__FILE__, __LINE__, __func__, msg);
    }
    return resetPort_;
}