gem5  v20.1.0.0
intpin.cc
Go to the documentation of this file.
1 /*
2  * Copyright 2019 Google, Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met: redistributions of source code must retain the above copyright
7  * notice, this list of conditions and the following disclaimer;
8  * redistributions in binary form must reproduce the above copyright
9  * notice, this list of conditions and the following disclaimer in the
10  * documentation and/or other materials provided with the distribution;
11  * neither the name of the copyright holders nor the names of its
12  * contributors may be used to endorse or promote products derived from
13  * this software without specific prior written permission.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #include "dev/intpin.hh"
29 
30 #include "base/logging.hh"
31 
32 void
34 {
35  source = dynamic_cast<IntSourcePinBase *>(&peer);
36  fatal_if(!source, "Attempt to bind interrupt sink pin %s to "
37  "incompatible port %s.", name(), peer.name());
38  Port::bind(peer);
39 }
40 
41 void
43 {
44  source = nullptr;
45  Port::unbind();
46 }
47 
48 void
50 {
51  sink = dynamic_cast<IntSinkPinBase *>(&peer);
52  fatal_if(!sink, "Attempt to bind interrupt source pin %s to "
53  "incompatible port %s.", name(), peer.name());
54  Port::bind(peer);
55 
56  if (_state)
57  raise();
58  else
59  lower();
60 }
61 
62 void
64 {
65  sink = nullptr;
66  Port::unbind();
67 }
Port::unbind
virtual void unbind()
Dettach from a peer port.
Definition: port.hh:121
IntSourcePinBase::lower
void lower()
Definition: intpin.hh:102
IntSinkPinBase::unbind
void unbind() override
Dettach from a peer port.
Definition: intpin.cc:42
IntSinkPinBase
Definition: intpin.hh:35
IntSourcePinBase::unbind
void unbind() override
Dettach from a peer port.
Definition: intpin.cc:63
IntSourcePinBase::sink
IntSinkPinBase * sink
Definition: intpin.hh:93
IntSinkPinBase::source
IntSourcePinBase * source
Definition: intpin.hh:40
Port
Ports are used to interface objects to each other.
Definition: port.hh:56
Port::name
const std::string name() const
Return port name (for DPRINTF).
Definition: port.hh:106
IntSourcePinBase::bind
void bind(Port &peer) override
Attach to a peer port.
Definition: intpin.cc:49
IntSourcePinBase::_state
bool _state
Definition: intpin.hh:94
logging.hh
IntSourcePinBase
Definition: intpin.hh:90
intpin.hh
IntSinkPinBase::bind
void bind(Port &peer) override
Attach to a peer port.
Definition: intpin.cc:33
fatal_if
#define fatal_if(cond,...)
Conditional fatal macro that checks the supplied condition and only causes a fatal error if the condi...
Definition: logging.hh:219
Port::bind
virtual void bind(Port &peer)
Attach to a peer port.
Definition: port.hh:113

Generated on Wed Sep 30 2020 14:02:11 for gem5 by doxygen 1.8.17