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/*
* 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 MEMCOMMAND_H
#define MEMCOMMAND_H
#include <stdint.h>
#include <cassert>
#include <string>
#include "MemorySpecification.h"
namespace Data {
class MemCommand {
public:
/*
* 1. ACT - Activate
* 2. RD - Read
* 3. WR - Write
* 4. PRE - Explicit Precharge per bank
* 5. REF - Refresh all banks
* 6 REFB- Refresh a particular bank
* 7. END - To indicate end of trace
* 8. RDA - Read with auto-precharge
* 9. WRA - Write with auto-precharge
* 10. PREA - Precharge all banks
* 11. PDN_F_PRE - Precharge Power-down Entry command (Fast-Exit)
* 12. PDN_S_PRE - Precharge Power-down Entry command (Slow-Exit)
* 13. PDN_F_ACT - Active Power-down Entry command (Fast-Exit)
* 14. PDN_S_ACT - Active Power-down Entry command (Slow-Exit)
* 15. PUP_PRE - Precharge Power-down Exit
* 16. PUP_ACT - Active Power-down Exit
* 17. SREN - Self-Refresh Entry command
* 18. SREX - Self-refresh Exit
* 19. NOP - To indicate end of trace
*/
enum cmds {
ACT = 0,
RD = 1,
WR = 2,
PRE = 3,
REF = 4,
REFB = 5,
END = 6,
RDA = 7,
WRA = 8,
PREA = 9,
PDN_F_PRE = 10,
PDN_S_PRE = 11,
PDN_F_ACT = 12,
PDN_S_ACT = 13,
PUP_PRE = 14,
PUP_ACT = 15,
SREN = 16,
SREX = 17,
NOP = 18,
UNINITIALIZED = 19
};
// MemCommand();
MemCommand(
// Command Type
MemCommand::cmds type = UNINITIALIZED,
// Target Bank
unsigned bank = 0,
// Command Issue Timestamp (in cc)
int64_t timestamp = 0L);
// Get command type
cmds getType() const;
// Set command type
void setType(MemCommand::cmds type);
// Set target Bank
void setBank(unsigned bank);
// Get target Bank
unsigned getBank() const;
// Set timestamp
void setTime(int64_t _timestamp);
// Get timestamp
int64_t getTimeInt64() const;
cmds typeWithoutAutoPrechargeFlag() const;
// To calculate precharge offset after read or write with auto-precharge
int64_t getPrechargeOffset(const MemorySpecification& memSpec,
MemCommand::cmds type) const;
// To check for equivalence
bool operator==(const MemCommand& other) const
{
if ((getType() == other.getType()) &&
(getBank() == other.getBank())
) {
return true;
} else {
return false;
}
}
static const unsigned int nCommands = 20;
static std::string* getCommandTypeStrings()
{
static std::string type_map[nCommands] = { "ACT",
"RD",
"WR",
"PRE",
"REF",
"REFB",
"END",
"RDA",
"WRA",
"PREA",
"PDN_F_PRE",
"PDN_S_PRE",
"PDN_F_ACT",
"PDN_S_ACT",
"PUP_PRE",
"PUP_ACT",
"SREN",
"SREX",
"NOP",
"UNINITIALIZED" };
return type_map;
}
// To identify command type from name
static cmds getTypeFromName(const std::string& name)
{
std::string* typeStrings = getCommandTypeStrings();
for (size_t typeId = 0; typeId < nCommands; typeId++) {
if (typeStrings[typeId] == name) {
cmds commandType = static_cast<cmds>(typeId);
return commandType;
}
}
assert(false); // Unknown name.
return NOP; // For clang compilation
}
private:
MemCommand::cmds type;
unsigned bank;
int64_t timestamp;
};
}
#endif // ifndef MEMCOMMAND_H
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