File size: 5,999 Bytes
d1be154 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 | #include <ot/timer/timer.hpp>
namespace ot {
// Function: read_sdc
Timer& Timer::read_sdc(std::filesystem::path path) {
// Create a shared sdc object
auto sdc = std::make_shared<sdc::SDC>();
std::scoped_lock lock(_mutex);
// parser
auto parser = _taskflow.emplace([sdc, path=std::move(path)] () {
sdc->read(path);
});
// reader
auto reader = _taskflow.emplace([this, sdc] () mutable {
_read_sdc(*sdc);
OT_LOGI("added ", sdc->commands.size(), " sdc commands");
});
// Build the task dependency
parser.precede(reader);
_add_to_lineage(reader);
return *this;
}
// Procedure: _sdc
void Timer::_read_sdc(sdc::SDC& sdc) {
for(auto& command : sdc.commands) {
std::visit(Functors{
[this] (auto&& cmd) {
_read_sdc(cmd);
}
}, command);
}
}
// Procedure: _sdc
// Sets input delay on pins or input ports relative to a clock signal.
void Timer::_read_sdc(sdc::SetInputDelay& obj) {
assert(obj.delay_value && obj.port_pin_list);
auto mask = sdc::TimingMask(obj.min, obj.max, obj.rise, obj.fall);
std::visit(Functors{
[&] (sdc::AllInputs&) {
for(auto& kvp : _pis) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_at(kvp.second, el, rf, obj.delay_value);
}
}
},
[&] (sdc::GetPorts& get_ports) {
for(auto& port : get_ports.ports) {
if(auto itr = _pis.find(port); itr != _pis.end()) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_at(itr->second, el, rf, obj.delay_value);
}
}
else {
OT_LOGE(obj.command, ": port ", std::quoted(port), " not found");
}
}
},
[] (auto&&) {
assert(false);
}
}, *obj.port_pin_list);
}
// Procedure: _sdc
// Sets input transition on pins or input ports relative to a clock signal.
void Timer::_read_sdc(sdc::SetInputTransition& obj) {
assert(obj.transition && obj.port_list);
auto mask = sdc::TimingMask(obj.min, obj.max, obj.rise, obj.fall);
std::visit(Functors{
[&] (sdc::AllInputs&) {
for(auto& kvp : _pis) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_slew(kvp.second, el, rf, obj.transition);
}
}
},
[&] (sdc::GetPorts& get_ports) {
for(auto& port : get_ports.ports) {
if(auto itr = _pis.find(port); itr != _pis.end()) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_slew(itr->second, el, rf, obj.transition);
}
}
else {
OT_LOGE(obj.command, ": port ", std::quoted(port), " not found");
}
}
},
[] (auto&&) {
assert(false);
}
}, *obj.port_list);
}
// Procedure: _sdc
// Sets output delay on pins or input ports relative to a clock signal.
void Timer::_read_sdc(sdc::SetOutputDelay& obj) {
assert(obj.delay_value && obj.port_pin_list);
if(_clocks.find(obj.clock) == _clocks.end()) {
OT_LOGE(obj.command, ": clock ", std::quoted(obj.clock), " not found");
return;
}
auto& clock = _clocks.at(obj.clock);
auto mask = sdc::TimingMask(obj.min, obj.max, obj.rise, obj.fall);
std::visit(Functors{
[&] (sdc::AllOutputs&) {
for(auto& kvp : _pos) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_rat(
kvp.second,
el,
rf,
el == MIN ? -(*obj.delay_value) : clock._period - (*obj.delay_value)
);
}
}
},
[&] (sdc::GetPorts& get_ports) {
for(auto& port : get_ports.ports) {
if(auto itr = _pos.find(port); itr != _pos.end()) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_rat(
itr->second,
el,
rf,
el == MIN ? -(*obj.delay_value) : clock._period - (*obj.delay_value)
);
}
}
else {
OT_LOGE(obj.command, ": port ", std::quoted(port), " not found");
}
}
},
[] (auto&&) {
assert(false);
}
}, *obj.port_pin_list);
}
// Procedure: _sdc
// Sets the load attribute to a specified value on specified ports and nets.
void Timer::_read_sdc(sdc::SetLoad& obj) {
assert(obj.value && obj.objects);
auto mask = sdc::TimingMask(obj.min, obj.max, std::nullopt, std::nullopt);
std::visit(Functors{
[&] (sdc::AllOutputs&) {
for(auto& kvp : _pos) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_load(kvp.second, el, rf, obj.value);
}
}
},
[&] (sdc::GetPorts& get_ports) {
for(auto& port : get_ports.ports) {
if(auto itr = _pos.find(port); itr != _pos.end()) {
FOR_EACH_EL_RF_IF(el, rf, (mask | el) && (mask | rf)) {
_set_load(itr->second, el, rf, obj.value);
}
}
else {
OT_LOGE(obj.command, ": port ", std::quoted(port), " not found");
}
}
},
[] (auto&&) {
assert(false);
}
}, *obj.objects);
}
// Procedure: _sdc
// create a clock object and defines its waveform in the current design.
void Timer::_read_sdc(sdc::CreateClock& obj) {
assert(obj.period && !obj.name.empty());
// create clock from given sources
if(obj.port_pin_list) {
std::visit(Functors{
[&] (sdc::GetPorts& get_ports) {
auto& ports = get_ports.ports;
assert(ports.size() == 1);
if(auto itr = _pins.find(ports.front()); itr != _pins.end()) {
_create_clock(obj.name, itr->second, *obj.period);
}
else {
OT_LOGE(obj.command, ": port ", std::quoted(ports.front()), " not found");
}
},
[] (auto&&) {
assert(false);
}
}, *obj.port_pin_list);
}
// create virtual clock
else {
_create_clock(obj.name, *obj.period);
}
}
}; // end of namespace ot. -----------------------------------------------------------------------
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