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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
* Copyright (c) 2011 ARM Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2004-2006 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.
*
* Authors: Kevin Lim
*/
#ifndef __CPU_BASE_DYN_INST_IMPL_HH__
#define __CPU_BASE_DYN_INST_IMPL_HH__
#include <iostream>
#include <set>
#include <sstream>
#include <string>
#include "base/cprintf.hh"
#include "base/trace.hh"
#include "config/the_isa.hh"
#include "cpu/base_dyn_inst.hh"
#include "cpu/exetrace.hh"
#include "debug/DynInst.hh"
#include "debug/IQ.hh"
#include "mem/request.hh"
#include "sim/faults.hh"
template <class Impl>
BaseDynInst<Impl>::BaseDynInst(const StaticInstPtr &_staticInst,
const StaticInstPtr &_macroop,
TheISA::PCState _pc, TheISA::PCState _predPC,
InstSeqNum seq_num, ImplCPU *cpu)
: staticInst(_staticInst), cpu(cpu), traceData(NULL), macroop(_macroop)
{
seqNum = seq_num;
pc = _pc;
predPC = _predPC;
initVars();
}
template <class Impl>
BaseDynInst<Impl>::BaseDynInst(const StaticInstPtr &_staticInst,
const StaticInstPtr &_macroop)
: staticInst(_staticInst), traceData(NULL), macroop(_macroop)
{
seqNum = 0;
initVars();
}
template <class Impl>
void
BaseDynInst<Impl>::initVars()
{
memData = NULL;
effAddr = 0;
physEffAddrLow = 0;
physEffAddrHigh = 0;
readyRegs = 0;
memReqFlags = 0;
status.reset();
instFlags.reset();
instFlags[RecordResult] = true;
instFlags[Predicate] = true;
lqIdx = -1;
sqIdx = -1;
// Eventually make this a parameter.
threadNumber = 0;
// Also make this a parameter, or perhaps get it from xc or cpu.
asid = 0;
// Initialize the fault to be NoFault.
fault = NoFault;
#ifndef NDEBUG
++cpu->instcount;
if (cpu->instcount > 1500) {
#ifdef DEBUG
cpu->dumpInsts();
dumpSNList();
#endif
assert(cpu->instcount <= 1500);
}
DPRINTF(DynInst,
"DynInst: [sn:%lli] Instruction created. Instcount for %s = %i\n",
seqNum, cpu->name(), cpu->instcount);
#endif
#ifdef DEBUG
cpu->snList.insert(seqNum);
#endif
}
template <class Impl>
BaseDynInst<Impl>::~BaseDynInst()
{
if (memData) {
delete [] memData;
}
if (traceData) {
delete traceData;
}
fault = NoFault;
#ifndef NDEBUG
--cpu->instcount;
DPRINTF(DynInst,
"DynInst: [sn:%lli] Instruction destroyed. Instcount for %s = %i\n",
seqNum, cpu->name(), cpu->instcount);
#endif
#ifdef DEBUG
cpu->snList.erase(seqNum);
#endif
}
#ifdef DEBUG
template <class Impl>
void
BaseDynInst<Impl>::dumpSNList()
{
std::set<InstSeqNum>::iterator sn_it = cpu->snList.begin();
int count = 0;
while (sn_it != cpu->snList.end()) {
cprintf("%i: [sn:%lli] not destroyed\n", count, (*sn_it));
count++;
sn_it++;
}
}
#endif
template <class Impl>
void
BaseDynInst<Impl>::dump()
{
cprintf("T%d : %#08d `", threadNumber, pc.instAddr());
std::cout << staticInst->disassemble(pc.instAddr());
cprintf("'\n");
}
template <class Impl>
void
BaseDynInst<Impl>::dump(std::string &outstring)
{
std::ostringstream s;
s << "T" << threadNumber << " : 0x" << pc.instAddr() << " "
<< staticInst->disassemble(pc.instAddr());
outstring = s.str();
}
template <class Impl>
void
BaseDynInst<Impl>::markSrcRegReady()
{
DPRINTF(IQ, "[sn:%lli] has %d ready out of %d sources. RTI %d)\n",
seqNum, readyRegs+1, numSrcRegs(), readyToIssue());
if (++readyRegs == numSrcRegs()) {
setCanIssue();
}
}
template <class Impl>
void
BaseDynInst<Impl>::markSrcRegReady(RegIndex src_idx)
{
_readySrcRegIdx[src_idx] = true;
markSrcRegReady();
}
template <class Impl>
bool
BaseDynInst<Impl>::eaSrcsReady()
{
// For now I am assuming that src registers 1..n-1 are the ones that the
// EA calc depends on. (i.e. src reg 0 is the source of the data to be
// stored)
for (int i = 1; i < numSrcRegs(); ++i) {
if (!_readySrcRegIdx[i])
return false;
}
return true;
}
#endif//__CPU_BASE_DYN_INST_IMPL_HH__
|
