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address decoder simplified

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This commit is contained in:
Janik Schlemminger
2014-07-15 14:35:13 +02:00
parent 9d276335fa
commit dc9d1b4b1f
4 changed files with 33 additions and 139 deletions
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120
dram/src/common/xmlAddressdecoder.cpp
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@@ -9,113 +9,31 @@ string xmlAddressDecoder::addressConfigURI = "";
xmlAddressDecoder::xmlAddressDecoder(string addressConfigURI)
{
doc = new XMLDocument();
loadXML(addressConfigURI,*doc);
addressmap = doc->FirstChildElement("dramconfig")->FirstChildElement("addressmap");
int from;
int to;
tinyxml2::XMLDocument doc;
// get channel:
// TiXmlElement* channel = addressmap->FirstChildElement("channel");
//
//
// from = getAttribute<unsigned int>(channel, "from");
// to = getAttribute<unsigned int>(channel, "to");
//
// channelShift = from;
// channelMask = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
// channelSize = pow(2.0, to - from + 1.0);
loadXML(addressConfigURI, doc);
tinyxml2::XMLElement* addressmap = doc.FirstChildElement("dramconfig")->FirstChildElement("addressmap");
// get row:
XMLElement* row = addressmap->FirstChildElement("row");
row->QueryIntAttribute("from",&from);
row->QueryIntAttribute("to",&to);
for(XMLElement* child = addressmap->FirstChildElement(); child != NULL; child = child->NextSiblingElement())
{
int from;
int to;
rowShift = from;
rowMask = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
rowSize = pow(2.0, to - from + 1.0);
// get bank:
XMLElement* bank = addressmap->FirstChildElement("bank");
bank->QueryIntAttribute("from",&from);
bank->QueryIntAttribute("to",&to);
bankShift = from;
bankMask = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
bankSize = pow(2.0, to - from + 1.0);
// get colum:
XMLElement* colum = addressmap->FirstChildElement("colum");
colum->QueryIntAttribute("from",&from);
colum->QueryIntAttribute("to",&to);
columShift = from;
columMask = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
columSize = pow(2.0, to - from + 1.0);
// get bytes:
// TiXmlElement* bytes = addressmap->FirstChildElement("bytes");
//
// from = getAttribute<unsigned int>(bytes, "from");
// to = getAttribute<unsigned int>(bytes, "to");
// bytesShift = from;
// bytesMask = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
// bytesSize = pow(2.0, to - from + 1.0);
child->QueryAttribute("from", &from);
child->QueryAttribute("to", &to);
shifts[child->Name()] = from;
masks[child->Name()] = pow(2.0, to + 1.0) - pow(2.0, from + 0.0);
}
}
xmlAddressDecoder::~xmlAddressDecoder()
DecodedAddress xmlAddressDecoder::decodeAddress(sc_dt::uint64 addr)
{
delete doc;
}
void xmlAddressDecoder::getNode(unsigned int addr, node * n)
{
n->channel = 0;
n->row = (addr & rowMask) >> rowShift;
n->bank = (addr & bankMask) >> bankShift;
n->colum = (addr & columMask) >> columShift;
}
void xmlAddressDecoder::getBRC(unsigned int addr, unsigned int &bank, unsigned int &row,
unsigned int &colum)
{
row = (addr & rowMask) >> rowShift;
bank = (addr & bankMask) >> bankShift;
colum = (addr & columMask) >> columShift;
}
void xmlAddressDecoder::getCBRC(unsigned int addr, unsigned int &channel, unsigned int &bank,
unsigned int &row, unsigned int &colum)
{
channel = (addr & channelMask) >> channelShift;
getBRC(addr, bank, row, colum);
}
void xmlAddressDecoder::getC(unsigned int addr, unsigned int &channel)
{
channel = (addr & channelMask) >> channelShift;
}
unsigned int xmlAddressDecoder::getNumberOfBanks()
{
return bankSize;
}
unsigned int xmlAddressDecoder::getNumberOfRowsPerBank()
{
return rowSize;
}
unsigned int xmlAddressDecoder::getNumberOfColumsPerRow()
{
return columSize;
}
unsigned int xmlAddressDecoder::getNumberOfBytesPerColumn()
{
return 1;
DecodedAddress n;
n.channel = 0;
n.row = (addr & masks["row"]) >> shifts["row"];
n.bank = (addr & masks["bank"]) >> shifts["bank"];
n.column = (addr & masks["column"]) >> shifts["column"];
return n;
}