gem5  v21.1.0.2
DataBlock.cc
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40 
42 
45 
46 namespace gem5
47 {
48 
49 namespace ruby
50 {
51 
53 {
54  m_data = new uint8_t[RubySystem::getBlockSizeBytes()];
56  m_alloc = true;
57 }
58 
59 void
61 {
62  m_data = new uint8_t[RubySystem::getBlockSizeBytes()];
63  m_alloc = true;
64  clear();
65 }
66 
67 void
69 {
71 }
72 
73 bool
74 DataBlock::equal(const DataBlock& obj) const
75 {
76  return !memcmp(m_data, obj.m_data, RubySystem::getBlockSizeBytes());
77 }
78 
79 void
81 {
82  for (int i = 0; i < RubySystem::getBlockSizeBytes(); i++) {
83  if (mask.getMask(i, 1)) {
84  m_data[i] = dblk.m_data[i];
85  }
86  }
87 }
88 
89 void
91 {
92  for (int i = 0; i < RubySystem::getBlockSizeBytes(); i++) {
93  m_data[i] = dblk.m_data[i];
94  }
95  mask.performAtomic(m_data);
96 }
97 
98 void
99 DataBlock::print(std::ostream& out) const
100 {
101  int size = RubySystem::getBlockSizeBytes();
102  out << "[ ";
103  for (int i = 0; i < size; i++) {
104  out << std::setw(2) << std::setfill('0') << std::hex
105  << "0x" << (int)m_data[i] << " " << std::setfill(' ');
106  }
107  out << std::dec << "]" << std::flush;
108 }
109 
110 const uint8_t*
112 {
114  return &m_data[offset];
115 }
116 
117 uint8_t*
119 {
120  return &m_data[offset];
121 }
122 
123 void
124 DataBlock::setData(const uint8_t *data, int offset, int len)
125 {
126  memcpy(&m_data[offset], data, len);
127 }
128 
129 void
131 {
132  int offset = getOffset(pkt->getAddr());
133  assert(offset + pkt->getSize() <= RubySystem::getBlockSizeBytes());
134  pkt->writeData(&m_data[offset]);
135 }
136 
137 DataBlock &
139 {
141  return *this;
142 }
143 
144 } // namespace ruby
145 } // namespace gem5
gem5::ruby::DataBlock::clear
void clear()
Definition: DataBlock.cc:68
gem5::ArmISA::len
Bitfield< 18, 16 > len
Definition: misc_types.hh:444
gem5::ruby::WriteMask
Definition: WriteMask.hh:59
data
const char data[]
Definition: circlebuf.test.cc:48
gem5::ruby::DataBlock::setData
void setData(const uint8_t *data, int offset, int len)
Definition: DataBlock.cc:124
gem5::ruby::DataBlock::m_data
uint8_t * m_data
Definition: DataBlock.hh:95
gem5::ruby::RubySystem::getBlockSizeBytes
static uint32_t getBlockSizeBytes()
Definition: RubySystem.hh:72
gem5::ArmISA::i
Bitfield< 7 > i
Definition: misc_types.hh:66
gem5::ruby::DataBlock::equal
bool equal(const DataBlock &obj) const
Definition: DataBlock.cc:74
gem5::mask
constexpr uint64_t mask(unsigned nbits)
Generate a 64-bit mask of 'nbits' 1s, right justified.
Definition: bitfield.hh:63
gem5::ruby::DataBlock::m_alloc
bool m_alloc
Definition: DataBlock.hh:96
gem5::ruby::DataBlock::copyPartial
void copyPartial(const DataBlock &dblk, int offset, int len)
Definition: DataBlock.hh:123
gem5::ruby::DataBlock::operator=
DataBlock & operator=(const DataBlock &obj)
Definition: DataBlock.cc:138
gem5::Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:283
DataBlock.hh
WriteMask.hh
gem5::ruby::DataBlock::DataBlock
DataBlock()
Definition: DataBlock.hh:63
gem5::ruby::DataBlock::atomicPartial
void atomicPartial(const DataBlock &dblk, const WriteMask &mask)
Definition: DataBlock.cc:90
gem5::ruby::getOffset
Addr getOffset(Addr addr)
Definition: Address.cc:54
gem5::ArmISA::offset
Bitfield< 23, 0 > offset
Definition: types.hh:144
RubySystem.hh
gem5::Packet::writeData
void writeData(uint8_t *p) const
Copy data from the packet to the memory at the provided pointer.
Definition: packet.hh:1281
gem5::ruby::DataBlock::print
void print(std::ostream &out) const
Definition: DataBlock.cc:99
gem5::ruby::DataBlock::getData
const uint8_t * getData(int offset, int len) const
Definition: DataBlock.cc:111
gem5::ruby::DataBlock::getDataMod
uint8_t * getDataMod(int offset)
Definition: DataBlock.cc:118
gem5::ruby::DataBlock
Definition: DataBlock.hh:60
gem5::Packet::getAddr
Addr getAddr() const
Definition: packet.hh:781
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::ruby::DataBlock::alloc
void alloc()
Definition: DataBlock.cc:60
gem5::Packet::getSize
unsigned getSize() const
Definition: packet.hh:791

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