gem5 v24.0.0.0
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nvm_gen.hh
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1/*
2 * Copyright (c) 2020 ARM Limited
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4 *
5 * The license below extends only to copyright in the software and shall
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8 * to a hardware implementation of the functionality of the software
9 * licensed here under. You may use the software subject to the license
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13 *
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36 */
37
44#ifndef __CPU_TRAFFIC_GEN_NVM_GEN_HH__
45#define __CPU_TRAFFIC_GEN_NVM_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 NvmGen : public RandomGen
62{
63
64 public:
65
88 NvmGen(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 buffer_size,
95 unsigned int nbr_of_banks, 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 bufferSize;
125
127 const unsigned int bufferBits;
128
130 const unsigned int bankBits;
131
133 const unsigned int blockBits;
134
136 const unsigned int nbrOfBanksNVM;
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
NVM specific generator is for issuing request with variable buffer hit length and bank utilization.
Definition nvm_gen.hh:62
const unsigned int blockBits
Number of block bits in NVM address.
Definition nvm_gen.hh:133
Addr addr
Address of request.
Definition nvm_gen.hh:118
PacketPtr getNextPacket()
Get the next generated packet.
Definition nvm_gen.cc:81
enums::AddrMap addrMapping
Address mapping to be used.
Definition nvm_gen.hh:142
unsigned int countNumSeqPkts
Track number of sequential packets generated for a request
Definition nvm_gen.hh:115
const unsigned int bufferBits
Number of buffer bits in NVM address.
Definition nvm_gen.hh:127
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 nvm_gen.cc:147
const unsigned int rankBits
Number of rank bits in NVM address.
Definition nvm_gen.hh:145
const unsigned int bufferSize
Buffer size of NVM.
Definition nvm_gen.hh:124
bool isRead
Remember type of requests to be generated in series.
Definition nvm_gen.hh:121
const unsigned int numSeqPkts
Number of sequential NVM packets to be generated per cpu request.
Definition nvm_gen.hh:112
const unsigned int nbrOfBanksUtil
Number of banks to be utilized for a given configuration.
Definition nvm_gen.hh:139
const unsigned int bankBits
Number of bank bits in NVM address.
Definition nvm_gen.hh:130
const unsigned int nbrOfRanks
Number of ranks to be utilized for a given configuration.
Definition nvm_gen.hh:148
NvmGen(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 buffer_size, unsigned int nbr_of_banks, unsigned int nbr_of_banks_util, enums::AddrMap addr_mapping, unsigned int nbr_of_ranks)
Create a NVM address sequence generator.
Definition nvm_gen.cc:50
const unsigned int nbrOfBanksNVM
Number of banks in NVM.
Definition nvm_gen.hh:136
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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