gem5  v22.0.0.1
Credit.cc
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1 /*
2  * Copyright (c) 2008 Princeton University
3  * Copyright (c) 2016 Georgia Institute of Technology
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5  *
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13  * neither the name of the copyright holders nor the names of its
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15  * this software without specific prior written permission.
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17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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28  */
29 
31 
32 #include "base/trace.hh"
33 #include "debug/RubyNetwork.hh"
34 
35 namespace gem5
36 {
37 
38 namespace ruby
39 {
40 
41 namespace garnet
42 {
43 
44 // Credit Signal for buffers inside VC
45 // Carries m_vc (inherits from flit.hh)
46 // and m_is_free_signal (whether VC is free or not)
47 
48 Credit::Credit(int vc, bool is_free_signal, Tick curTime)
49  : flit(0, 0, vc, 0, RouteInfo(), 0, nullptr, 0, 0, curTime)
50 {
52  m_type = CREDIT_;
53 }
54 
55 flit *
56 Credit::serialize(int ser_id, int parts, uint32_t bWidth)
57 {
58  DPRINTF(RubyNetwork, "Serializing a credit\n");
59  bool new_free = false;
60  if ((ser_id+1 == parts) && m_is_free_signal) {
61  new_free = true;
62  }
63  Credit *new_credit_flit = new Credit(m_vc, new_free, m_time);
64  return new_credit_flit;
65 }
66 
67 flit *
68 Credit::deserialize(int des_id, int num_flits, uint32_t bWidth)
69 {
70  DPRINTF(RubyNetwork, "DeSerializing a credit vc:%d free:%d\n",
72  if (m_is_free_signal) {
73  // We are not going to get anymore credits for this vc
74  // So send a credit in any case
75  return new Credit(m_vc, true, m_time);
76  }
77 
78  return new Credit(m_vc, false, m_time);
79 }
80 
81 void
82 Credit::print(std::ostream& out) const
83 {
84  out << "[Credit:: ";
85  out << "Type=" << m_type << " ";
86  out << "VC=" << m_vc << " ";
87  out << "FreeVC=" << m_is_free_signal << " ";
88  out << "Set Time=" << m_time << " ";
89  out << "]";
90 }
91 
92 } // namespace garnet
93 } // namespace ruby
94 } // namespace gem5
gem5::ruby::garnet::flit
Definition: flit.hh:50
gem5::ruby::garnet::Credit::m_is_free_signal
bool m_is_free_signal
Definition: Credit.hh:70
gem5::ruby::garnet::flit::m_vc
int m_vc
Definition: flit.hh:121
gem5::ruby::garnet::Credit
Definition: Credit.hh:54
gem5::ruby::garnet::RouteInfo
Definition: CommonTypes.hh:56
gem5::ruby::garnet::Credit::deserialize
flit * deserialize(int des_id, int num_flits, uint32_t bWidth)
Definition: Credit.cc:68
gem5::ruby::garnet::Credit::Credit
Credit()
Definition: Credit.hh:57
DPRINTF
#define DPRINTF(x,...)
Definition: trace.hh:186
gem5::Tick
uint64_t Tick
Tick count type.
Definition: types.hh:58
gem5::ruby::garnet::flit::m_time
Tick m_time
Definition: flit.hh:125
gem5::ruby::garnet::flit::m_type
flit_type m_type
Definition: flit.hh:126
gem5::ruby::garnet::Credit::is_free_signal
bool is_free_signal()
Definition: Credit.hh:67
Credit.hh
gem5::ruby::garnet::Credit::serialize
flit * serialize(int ser_id, int parts, uint32_t bWidth)
Definition: Credit.cc:56
trace.hh
gem5::ruby::garnet::Credit::print
void print(std::ostream &out) const
Definition: Credit.cc:82
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: gpu_translation_state.hh:37
gem5::ruby::garnet::CREDIT_
@ CREDIT_
Definition: CommonTypes.hh:48

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