1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders 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
* OWNER 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.
*/
#ifndef __MEMTEST_HH__
#define __MEMTEST_HH__
#include "sim_object.hh"
#include "mem_interface.hh"
#include "functional_memory.hh"
#include "base_cpu.hh"
#include "exec_context.hh"
#include "statistics.hh"
#include "sim_stats.hh"
class MemTest : public BaseCPU
{
public:
MemTest(const std::string &name,
MemInterface *_cache_interface,
FunctionalMemory *main_mem,
FunctionalMemory *check_mem,
unsigned _memorySize,
unsigned _percentReads,
unsigned _percentUncacheable,
unsigned _maxReads,
unsigned _progressInterval,
Addr _traceAddr);
// register statistics
virtual void regStats();
// main simulation loop (one cycle)
void tick();
protected:
class TickEvent : public Event
{
private:
MemTest *cpu;
public:
TickEvent(MemTest *c)
: Event(&mainEventQueue, 100), cpu(c) {}
void process() {cpu->tick();}
virtual const char *description() { return "tick event"; }
};
TickEvent tickEvent;
MemInterface *cacheInterface;
FunctionalMemory *mainMem;
FunctionalMemory *checkMem;
ExecContext *xc;
unsigned size; // size of testing memory region
unsigned percentReads; // target percentage of read accesses
unsigned percentUncacheable;
Tick maxReads; // max # of reads to perform (then quit)
unsigned blockSize;
Addr blockAddrMask;
Addr blockAddr(Addr addr)
{
return (addr & ~blockAddrMask);
}
Addr traceBlockAddr;
Addr baseAddr1; // fix this to option
Addr baseAddr2; // fix this to option
Addr uncacheAddr;
unsigned progressInterval; // frequency of progress reports
Tick nextProgressMessage; // access # for next progress report
Tick noResponseCycles;
Statistics::Scalar<long long int> numReads;
Statistics::Scalar<long long int> numWrites;
Statistics::Scalar<long long int> numCopies;
// called by MemCompleteEvent::process()
void completeRequest(MemReqPtr req, uint8_t *data);
friend class MemCompleteEvent;
};
class MemCompleteEvent : public Event
{
MemReqPtr req;
uint8_t *data;
MemTest *tester;
public:
MemCompleteEvent(MemReqPtr _req, uint8_t *_data, MemTest *_tester)
: Event(&mainEventQueue),
req(_req), data(_data), tester(_tester)
{
}
void process();
virtual const char *description();
};
#endif // __MEMTEST_HH__
|
