86e9a6ffec
Sync DRAMPower to external tool This patch syncs the DRAMPower library of gem5 to the external one on github (https://github.com/ravenrd/DRAMPower) of which I am a maintainer. The version used is the commit: 902a00a1797c48a9df97ec88868f20e847680ae6 from 07. May. 2016. Committed by Jason Lowe-Power <jason@lowepower.com>
243 lines
6.6 KiB
C++
243 lines
6.6 KiB
C++
/*
|
|
* Copyright (c) 2012-2014, TU Delft
|
|
* Copyright (c) 2012-2014, TU Eindhoven
|
|
* Copyright (c) 2012-2014, TU Kaiserslautern
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
|
|
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
|
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* Authors: Karthik Chandrasekar
|
|
*
|
|
*/
|
|
|
|
#ifndef TOOLS_MEMORY_SPECIFICATION_H
|
|
#define TOOLS_MEMORY_SPECIFICATION_H
|
|
|
|
#include <cassert>
|
|
#include <string>
|
|
|
|
#include "MemArchitectureSpec.h"
|
|
#include "MemTimingSpec.h"
|
|
#include "MemPowerSpec.h"
|
|
#include "Parametrisable.h"
|
|
|
|
|
|
namespace Data {
|
|
// Supported memory types
|
|
class MemoryType {
|
|
public:
|
|
enum MemoryType_t {
|
|
DDR2 = 0,
|
|
DDR3,
|
|
DDR4,
|
|
LPDDR,
|
|
LPDDR2,
|
|
LPDDR3,
|
|
WIDEIO_SDR,
|
|
MEMORY_TYPE_INVALID
|
|
};
|
|
|
|
MemoryType(MemoryType_t _val) :
|
|
val(_val)
|
|
{
|
|
}
|
|
|
|
MemoryType() :
|
|
val(MEMORY_TYPE_INVALID)
|
|
{
|
|
}
|
|
|
|
MemoryType(const std::string& _val) :
|
|
val(MEMORY_TYPE_INVALID)
|
|
{
|
|
if (_val == "DDR2") {
|
|
val = DDR2;
|
|
} else if (_val == "DDR3") {
|
|
val = DDR3;
|
|
} else if (_val == "DDR4") {
|
|
val = DDR4;
|
|
} else if (_val == "LPDDR") {
|
|
val = LPDDR;
|
|
} else if (_val == "LPDDR2") {
|
|
val = LPDDR2;
|
|
} else if (_val == "LPDDR3") {
|
|
val = LPDDR3;
|
|
} else if (_val == "WIDEIO_SDR") {
|
|
val = WIDEIO_SDR;
|
|
}
|
|
assert("Unknown memory type." && val != MEMORY_TYPE_INVALID);
|
|
}
|
|
|
|
bool isLPDDRFamily() const
|
|
{
|
|
return val == LPDDR ||
|
|
val == LPDDR2 ||
|
|
val == LPDDR3 ||
|
|
val == WIDEIO_SDR;
|
|
}
|
|
|
|
bool hasTwoVoltageDomains() const
|
|
{
|
|
return val == LPDDR ||
|
|
val == LPDDR2 ||
|
|
val == LPDDR3 ||
|
|
val == WIDEIO_SDR ||
|
|
val == DDR4;
|
|
}
|
|
|
|
bool isDDRFamily() const
|
|
{
|
|
return val == DDR2 ||
|
|
val == DDR3 ||
|
|
val == DDR4;
|
|
}
|
|
|
|
bool hasDll() const
|
|
{
|
|
return val == DDR2 ||
|
|
val == DDR3 ||
|
|
val == DDR4;
|
|
}
|
|
|
|
bool hasTermination() const
|
|
{
|
|
return val == DDR2 ||
|
|
val == DDR3 ||
|
|
val == DDR4;
|
|
}
|
|
|
|
double getCapacitance() const
|
|
{
|
|
// LPDDR1/2 memories only have IO Power (no ODT)
|
|
// LPDDR3 has optional ODT, but it is typically not used (reflections are elimitated by other means (layout))
|
|
// The capacitance values are conservative and based on Micron Mobile LPDDR2 Power Calculator
|
|
|
|
// LPDDR/2/3 IO Capacitance in mF
|
|
if (val == LPDDR) {
|
|
return 0.0000000045;
|
|
} else if (val == LPDDR2) {
|
|
return 0.0000000025;
|
|
} else if (val == LPDDR3) {
|
|
return 0.0000000018;
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double getIoPower() const
|
|
{
|
|
if (val == DDR2) {
|
|
// Conservative estimates based on Micron DDR2 Power Calculator
|
|
return 1.5; // in mW
|
|
} else if (val == DDR3) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
return 4.6; // in mW
|
|
} else if (val == DDR4) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
// using available termination resistance values from Micron DDR4 Datasheets
|
|
return 3.7; // in mW
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double getWrOdtPower() const
|
|
{
|
|
if (val == DDR2) {
|
|
// Conservative estimates based on Micron DDR2 Power Calculator
|
|
return 8.2; // in mW
|
|
} else if (val == DDR3) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
return 21.2; // in mW
|
|
} else if (val == DDR4) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
// using available termination resistance values from Micron DDR4 Datasheets
|
|
return 17.0; // in mW
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double getTermRdPower() const
|
|
{
|
|
if (val == DDR2) {
|
|
// Conservative estimates based on Micron DDR2 Power Calculator
|
|
return 13.1; // in mW
|
|
} else if (val == DDR3) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
return 15.5; // in mW
|
|
} else if (val == DDR4) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
// using available termination resistance values from Micron DDR4 Datasheets
|
|
return 12.4; // in mW
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double getTermWrPower() const
|
|
{
|
|
if (val == DDR2) {
|
|
// Conservative estimates based on Micron DDR2 Power Calculator
|
|
return 14.6; // in mW
|
|
} else if (val == DDR3) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
return 15.4; // in mW
|
|
} else if (val == DDR4) {
|
|
// Conservative estimates based on Micron DDR3 Power Calculator
|
|
// using available termination resistance values from Micron DDR4 Datasheets
|
|
return 12.3; // in mW
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
operator MemoryType_t() const {
|
|
return val;
|
|
}
|
|
|
|
private:
|
|
MemoryType_t val;
|
|
};
|
|
|
|
class MemorySpecification : public virtual Parametrisable {
|
|
public:
|
|
std::string id;
|
|
MemoryType memoryType;
|
|
|
|
MemArchitectureSpec memArchSpec;
|
|
MemTimingSpec memTimingSpec;
|
|
MemPowerSpec memPowerSpec;
|
|
|
|
void processParameters();
|
|
|
|
static MemorySpecification getMemSpecFromXML(const std::string& id);
|
|
};
|
|
} // namespace Data
|
|
#endif // ifndef TOOLS_MEMORY_SPECIFICATION_H
|