gem5 v24.0.0.0
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dram_gen.hh
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1/*
2 * Copyright (c) 2012-2013, 2017-2019 ARM Limited
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13 *
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36 */
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
53namespace gem5
54{
55
61class DramGen : public RandomGen
62{
63
64 public:
65
88 DramGen(SimObject &obj,
89 RequestorID requestor_id, Tick _duration,
90 Addr start_addr, Addr end_addr,
91 Addr _blocksize, Addr cacheline_size,
92 Tick min_period, Tick max_period,
93 uint8_t read_percent, Addr data_limit,
94 unsigned int num_seq_pkts, unsigned int page_size,
95 unsigned int nbr_of_banks_DRAM, unsigned int nbr_of_banks_util,
96 enums::AddrMap addr_mapping,
97 unsigned int nbr_of_ranks);
98
100
107 void genStartAddr(unsigned int new_bank , unsigned int new_rank);
108
109 protected:
110
112 const unsigned int numSeqPkts;
113
115 unsigned int countNumSeqPkts;
116
119
121 bool isRead;
122
124 const unsigned int pageSize;
125
127 const unsigned int pageBits;
128
130 const unsigned int bankBits;
131
133 const unsigned int blockBits;
134
136 const unsigned int nbrOfBanksDRAM;
137
139 const unsigned int nbrOfBanksUtil;
140
142 enums::AddrMap addrMapping;
143
145 const unsigned int rankBits;
146
148 const unsigned int nbrOfRanks;
149
150};
151
152} // namespace gem5
153
154#endif
DRAM specific generator is for issuing request with variable page hit length and bank utilization.
Definition dram_gen.hh:62
bool isRead
Remember type of requests to be generated in series.
Definition dram_gen.hh:121
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:50
const unsigned int nbrOfBanksUtil
Number of banks to be utilized for a given configuration.
Definition dram_gen.hh:139
const unsigned int nbrOfBanksDRAM
Number of banks in DRAM.
Definition dram_gen.hh:136
const unsigned int blockBits
Number of block bits in DRAM address.
Definition dram_gen.hh:133
Addr addr
Address of request.
Definition dram_gen.hh:118
unsigned int countNumSeqPkts
Track number of sequential packets generated for a request
Definition dram_gen.hh:115
const unsigned int nbrOfRanks
Number of ranks to be utilized for a given configuration.
Definition dram_gen.hh:148
const unsigned int rankBits
Number of rank bits in DRAM address.
Definition dram_gen.hh:145
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:146
const unsigned int numSeqPkts
Number of sequential DRAM packets to be generated per cpu request.
Definition dram_gen.hh:112
enums::AddrMap addrMapping
Address mapping to be used.
Definition dram_gen.hh:142
PacketPtr getNextPacket()
Get the next generated packet.
Definition dram_gen.cc:81
const unsigned int pageBits
Number of page bits in DRAM address.
Definition dram_gen.hh:127
const unsigned int pageSize
Page size of DRAM.
Definition dram_gen.hh:124
const unsigned int bankBits
Number of bank bits in DRAM address.
Definition dram_gen.hh:130
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition packet.hh:295
The random generator is similar to the linear one, but does not generate sequential addresses.
Definition random_gen.hh:61
Abstract superclass for simulation objects.
Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.
Definition binary32.hh:36
uint64_t Addr
Address type This will probably be moved somewhere else in the near future.
Definition types.hh:147
uint64_t Tick
Tick count type.
Definition types.hh:58
uint16_t RequestorID
Definition request.hh:95
Declaration of the Packet class.
Declaration of the random generator that randomly selects addresses within a range.

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