gem5  v20.1.0.0
dram_gen.hh
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37 
44 #ifndef __CPU_TRAFFIC_GEN_DRAM_GEN_HH__
45 #define __CPU_TRAFFIC_GEN_DRAM_GEN_HH__
46 
47 #include "base/bitfield.hh"
48 #include "base/intmath.hh"
49 #include "enums/AddrMap.hh"
50 #include "mem/packet.hh"
51 #include "random_gen.hh"
52 
58 class DramGen : public RandomGen
59 {
60 
61  public:
62 
85  DramGen(SimObject &obj,
86  RequestorID requestor_id, Tick _duration,
87  Addr start_addr, Addr end_addr,
88  Addr _blocksize, Addr cacheline_size,
89  Tick min_period, Tick max_period,
90  uint8_t read_percent, Addr data_limit,
91  unsigned int num_seq_pkts, unsigned int page_size,
92  unsigned int nbr_of_banks_DRAM, unsigned int nbr_of_banks_util,
93  Enums::AddrMap addr_mapping,
94  unsigned int nbr_of_ranks);
95 
97 
104  void genStartAddr(unsigned int new_bank , unsigned int new_rank);
105 
106  protected:
107 
109  const unsigned int numSeqPkts;
110 
112  unsigned int countNumSeqPkts;
113 
116 
118  bool isRead;
119 
121  const unsigned int pageSize;
122 
124  const unsigned int pageBits;
125 
127  const unsigned int bankBits;
128 
130  const unsigned int blockBits;
131 
133  const unsigned int nbrOfBanksDRAM;
134 
136  const unsigned int nbrOfBanksUtil;
137 
139  Enums::AddrMap addrMapping;
140 
142  const unsigned int rankBits;
143 
145  const unsigned int nbrOfRanks;
146 
147 };
148 
149 #endif
DramGen::nbrOfBanksDRAM
const unsigned int nbrOfBanksDRAM
Number of banks in DRAM.
Definition: dram_gen.hh:133
DramGen::getNextPacket
PacketPtr getNextPacket()
Get the next generated packet.
Definition: dram_gen.cc:78
DramGen::numSeqPkts
const unsigned int numSeqPkts
Number of sequential DRAM packets to be generated per cpu request.
Definition: dram_gen.hh:109
Tick
uint64_t Tick
Tick count type.
Definition: types.hh:63
DramGen
DRAM specific generator is for issuing request with variable page hit length and bank utilization.
Definition: dram_gen.hh:58
DramGen::countNumSeqPkts
unsigned int countNumSeqPkts
Track number of sequential packets generated for a request
Definition: dram_gen.hh:112
DramGen::blockBits
const unsigned int blockBits
Number of block bits in DRAM address.
Definition: dram_gen.hh:130
DramGen::rankBits
const unsigned int rankBits
Number of rank bits in DRAM address.
Definition: dram_gen.hh:142
DramGen::bankBits
const unsigned int bankBits
Number of bank bits in DRAM address.
Definition: dram_gen.hh:127
packet.hh
RequestorID
uint16_t RequestorID
Definition: request.hh:85
DramGen::pageBits
const unsigned int pageBits
Number of page bits in DRAM address.
Definition: dram_gen.hh:124
bitfield.hh
DramGen::genStartAddr
void genStartAddr(unsigned int new_bank, unsigned int new_rank)
Insert bank, rank, and column bits into packed address to create address for 1st command in a series.
Definition: dram_gen.cc:143
DramGen::nbrOfRanks
const unsigned int nbrOfRanks
Number of ranks to be utilized for a given configuration.
Definition: dram_gen.hh:145
DramGen::addr
Addr addr
Address of request.
Definition: dram_gen.hh:115
Addr
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition: types.hh:142
random_gen.hh
Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:257
DramGen::DramGen
DramGen(SimObject &obj, RequestorID requestor_id, Tick _duration, Addr start_addr, Addr end_addr, Addr _blocksize, Addr cacheline_size, Tick min_period, Tick max_period, uint8_t read_percent, Addr data_limit, unsigned int num_seq_pkts, unsigned int page_size, unsigned int nbr_of_banks_DRAM, unsigned int nbr_of_banks_util, Enums::AddrMap addr_mapping, unsigned int nbr_of_ranks)
Create a DRAM address sequence generator.
Definition: dram_gen.cc:47
RandomGen
The random generator is similar to the linear one, but does not generate sequential addresses.
Definition: random_gen.hh:57
intmath.hh
DramGen::isRead
bool isRead
Remember type of requests to be generated in series.
Definition: dram_gen.hh:118
DramGen::nbrOfBanksUtil
const unsigned int nbrOfBanksUtil
Number of banks to be utilized for a given configuration.
Definition: dram_gen.hh:136
DramGen::pageSize
const unsigned int pageSize
Page size of DRAM.
Definition: dram_gen.hh:121
DramGen::addrMapping
Enums::AddrMap addrMapping
Address mapping to be used.
Definition: dram_gen.hh:139
SimObject
Abstract superclass for simulation objects.
Definition: sim_object.hh:92

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