70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#include "xmlAddressdecoder.h"
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#include <systemc.h>
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#include "Utils.h"
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#include "bitset"
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using namespace std;
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using namespace tinyxml2;
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tinyxml2::XMLElement* xmlAddressDecoder::addressmapping = NULL;
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xmlAddressDecoder::xmlAddressDecoder(string addressConfigURI)
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{
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tinyxml2::XMLDocument doc;
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loadXML(addressConfigURI, doc);
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xmlAddressDecoder(doc.FirstChildElement("dramconfig")->FirstChildElement("addressmap"));
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}
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xmlAddressDecoder::xmlAddressDecoder(XMLElement* addressmap)
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{
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tinyxml2::XMLDocument doc;
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string xmlNodeName(addressmap->Name());
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if( xmlNodeName != "addressmapping")
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reportFatal("AddressDecorder", "addressmap node expected");
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if(addressmap->Attribute("src"))
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{
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string src(addressmap->Attribute("src"));
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loadXML(src, doc);
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addressmap = (doc.FirstChildElement("addressmapping"));
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}
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for(XMLElement* child = addressmap->FirstChildElement(); child != NULL; child = child->NextSiblingElement())
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{
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int from;
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int to;
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child->QueryAttribute("from", &from);
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child->QueryAttribute("to", &to);
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shifts[child->Name()] = from;
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masks[child->Name()] = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
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}
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}
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DecodedAddress xmlAddressDecoder::decodeAddress(sc_dt::uint64 addr)
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{
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DecodedAddress result;
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result.channel = (addr & masks["channel"]) >> shifts["channel"];
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result.rank = (addr & masks["rank"]) >> shifts["rank"];
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result.bankgroup = (addr & masks["bankgroup"]) >> shifts["bankgroup"];
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result.row = (addr & masks["row"]) >> shifts["row"];
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result.bank = (addr & masks["bank"]) >> shifts["bank"];
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result.column = (addr & masks["column"]) >> shifts["column"];
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result.bytes = (addr & masks["bytes"]) >> shifts["bytes"];
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return result;
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}
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void xmlAddressDecoder::print()
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{
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cout << "Used addressmapping:" << endl;
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cout<<"===================="<<endl;
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for(auto& pair : masks)
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{
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cout<<pair.first<<"\t:\t" << bitset<32>(pair.second)<<endl;
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}
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cout<<"\n"<<endl;
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}
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