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
|
/*
* Copyright (c) 2015, University of Kaiserslautern
* Copyright (c) 2016, Dresden University of Technology (TU Dresden)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder 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 HOLDER
* 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: Matthias Jung
* Christian Menard
*/
#ifndef PAYLOAD_EVENT_H_
#define PAYLOAD_EVENT_H_
// TLM includes
#include <tlm.h>
// gem5 includes
#include <sim/eventq.hh>
namespace Gem5SystemC {
/**
* A 'Fake Payload Event Queue', similar to the TLM PEQs. This helps the
* transactors to schedule events in gem5.
*/
template <typename OWNER>
class PayloadEvent : public Event
{
public:
OWNER& port;
const std::string eventName;
void (OWNER::*handler)(PayloadEvent<OWNER>* pe,
tlm::tlm_generic_payload& trans,
const tlm::tlm_phase& phase);
protected:
tlm::tlm_generic_payload* t;
tlm::tlm_phase p;
void process() { (port.*handler)(this, *t, p); }
public:
const std::string name() const { return eventName; }
PayloadEvent(OWNER& port_,
void (OWNER::*handler_)(PayloadEvent<OWNER>* pe,
tlm::tlm_generic_payload& trans,
const tlm::tlm_phase& phase),
const std::string& event_name)
: port(port_)
, eventName(event_name)
, handler(handler_)
{
}
/// Schedule an event into gem5
void notify(tlm::tlm_generic_payload& trans, const tlm::tlm_phase& phase,
const sc_core::sc_time& delay)
{
assert(!scheduled());
t = &trans;
p = phase;
/**
* Get time from SystemC as this will always be more up to date
* than gem5's
*/
Tick nextEventTick = sc_core::sc_time_stamp().value() + delay.value();
port.owner.wakeupEventQueue(nextEventTick);
port.owner.schedule(this, nextEventTick);
}
};
}
#endif
|
