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Add refresh management (RFM) for HBM3

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This commit is contained in:
Derek Christ
2022-05-23 16:52:29 +02:00
parent ac78659229
commit f66a98b911
3 changed files with 32 additions and 3 deletions
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5
DRAMSys/library/resources/configs/memspecs/HBM3.json
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@@ -10,7 +10,10 @@
"nbrOfRows": 32768,
"width": 32,
"nbrOfDevices": 1,
"nbrOfChannels": 1
"nbrOfChannels": 1,
"RAAIMT" : 16,
"RAAMMT" : 96,
"RAACDR" : 16
},
"memoryId": "",
"memoryType": "HBM3",

22
DRAMSys/library/src/configuration/memspec/MemSpecHBM3.cpp
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@@ -56,6 +56,9 @@ MemSpecHBM3::MemSpecHBM3(const DRAMSysConfiguration::MemSpec &memSpec)
memSpec.memArchitectureSpec.entries.at("nbrOfBankGroups")
* memSpec.memArchitectureSpec.entries.at("nbrOfPseudoChannels"),
memSpec.memArchitectureSpec.entries.at("nbrOfDevices")),
RAAIMT(memSpec.memArchitectureSpec.entries.at("RAAIMT")),
RAAMMT(memSpec.memArchitectureSpec.entries.at("RAAMMT")),
RAACDR(memSpec.memArchitectureSpec.entries.at("RAACDR")),
tDQSCK (tCK * memSpec.memTimingSpec.entries.at("DQSCK")),
tRC (tCK * memSpec.memTimingSpec.entries.at("RC")),
tRAS (tCK * memSpec.memTimingSpec.entries.at("RAS")),
@@ -151,9 +154,9 @@ sc_time MemSpecHBM3::getExecutionTime(Command command, const tlm_generic_payload
return tWL + burstDuration;
else if (command == Command::WRA)
return tWL + burstDuration + tWR + tRP;
else if (command == Command::REFAB)
else if (command == Command::REFAB || command == Command::RFMAB)
return tRFC;
else if (command == Command::REFPB)
else if (command == Command::REFPB || command == Command::RFMPB)
return tRFCPB;
else
{
@@ -175,3 +178,18 @@ TimeInterval MemSpecHBM3::getIntervalOnDataStrobe(Command command, const tlm_gen
return {};
}
}
unsigned MemSpecHBM3::getRAACDR() const
{
return RAACDR;
}
unsigned MemSpecHBM3::getRAAIMT() const
{
return RAAIMT;
}
unsigned MemSpecHBM3::getRAAMMT() const
{
return RAAMMT;
}

8
DRAMSys/library/src/configuration/memspec/MemSpecHBM3.h
View File

@@ -45,6 +45,10 @@ class MemSpecHBM3 final : public MemSpec
public:
explicit MemSpecHBM3(const DRAMSysConfiguration::MemSpec &memSpec);
const unsigned RAAIMT;
const unsigned RAAMMT;
const unsigned RAACDR;
// Memspec Variables:
const sc_core::sc_time tDQSCK;
// sc_time tDQSQ; // TODO: check actual value of this parameter
@@ -85,6 +89,10 @@ public:
sc_core::sc_time getRefreshIntervalAB() const override;
sc_core::sc_time getRefreshIntervalPB() const override;
unsigned getRAACDR() const override;
unsigned getRAAIMT() const override;
unsigned getRAAMMT() const override;
bool hasRasAndCasBus() const override;
sc_core::sc_time getExecutionTime(Command command, const tlm::tlm_generic_payload &payload) const override;