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
|
/*
* Copyright (c) 2008 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: Gabe Black
*/
#ifndef __DEV_X86_INTDEV_HH__
#define __DEV_X86_INTDEV_HH__
#include <assert.h>
#include <string>
#include "arch/x86/x86_traits.hh"
#include "arch/x86/intmessage.hh"
#include "mem/mem_object.hh"
#include "mem/mport.hh"
#include "sim/sim_object.hh"
#include "params/X86IntSourcePin.hh"
#include "params/X86IntSinkPin.hh"
#include "params/X86IntLine.hh"
namespace X86ISA {
class IntDev
{
protected:
class IntPort : public MessagePort
{
IntDev * device;
Tick latency;
Addr intAddr;
public:
IntPort(const std::string &_name, MemObject * _parent,
IntDev *dev, Tick _latency) :
MessagePort(_name, _parent), device(dev), latency(_latency)
{
}
void getDeviceAddressRanges(AddrRangeList &resp, bool &snoop)
{
snoop = false;
device->getIntAddrRange(resp);
}
Tick recvMessage(PacketPtr pkt)
{
return device->recvMessage(pkt);
}
// This is x86 focused, so if this class becomes generic, this would
// need to be moved into a subclass.
void sendMessage(TriggerIntMessage message, bool timing);
void recvStatusChange(Status status)
{
if (status == RangeChange) {
sendStatusChange(Port::RangeChange);
}
}
};
IntPort * intPort;
public:
IntDev(MemObject * parent, Tick latency = 0)
{
if (parent != NULL) {
intPort = new IntPort(parent->name() + ".int_port",
parent, this, latency);
} else {
intPort = NULL;
}
}
virtual ~IntDev()
{}
virtual void
signalInterrupt(int line)
{
panic("signalInterrupt not implemented.\n");
}
virtual void
raiseInterruptPin(int number)
{
panic("raiseInterruptPin not implemented.\n");
}
virtual void
lowerInterruptPin(int number)
{
panic("lowerInterruptPin not implemented.\n");
}
virtual Tick
recvMessage(PacketPtr pkt)
{
panic("recvMessage not implemented.\n");
return 0;
}
virtual void
getIntAddrRange(AddrRangeList &range_list)
{
panic("intAddrRange not implemented.\n");
}
};
class IntSinkPin : public SimObject
{
public:
IntDev * device;
int number;
typedef X86IntSinkPinParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
IntSinkPin(Params *p) : SimObject(p),
device(dynamic_cast<IntDev *>(p->device)), number(p->number)
{
assert(device);
}
};
class IntSourcePin : public SimObject
{
protected:
std::vector<IntSinkPin *> sinks;
public:
typedef X86IntSourcePinParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
void
addSink(IntSinkPin *sink)
{
sinks.push_back(sink);
}
void
raise()
{
for (int i = 0; i < sinks.size(); i++) {
const IntSinkPin &pin = *sinks[i];
pin.device->raiseInterruptPin(pin.number);
}
}
void
lower()
{
for (int i = 0; i < sinks.size(); i++) {
const IntSinkPin &pin = *sinks[i];
pin.device->lowerInterruptPin(pin.number);
}
}
IntSourcePin(Params *p) : SimObject(p)
{}
};
class IntLine : public SimObject
{
protected:
IntSourcePin *source;
IntSinkPin *sink;
public:
typedef X86IntLineParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
IntLine(Params *p) : SimObject(p), source(p->source), sink(p->sink)
{
source->addSink(sink);
}
};
}; // namespace X86ISA
#endif //__DEV_X86_INTDEV_HH__
|
