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power cleanup 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2023-10-25 12:57:29 -07:00
parent 73cd5ca002
commit 0968cc8cbf
2 changed files with 12 additions and 32 deletions
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37
power/Power.cc
View File

@ -1049,6 +1049,7 @@ Power::findSwitchingPower(const Instance *inst,
PowerResult &result)
{
const DcalcAnalysisPt *dcalc_ap = corner->findDcalcAnalysisPt(MinMax::max());
LibertyCell *corner_cell = cell->cornerCell(dcalc_ap);
InstancePinIterator *pin_iter = network_->pinIterator(inst);
while (pin_iter->hasNext()) {
const Pin *to_pin = pin_iter->next();
@ -1058,36 +1059,22 @@ Power::findSwitchingPower(const Instance *inst,
? graph_delay_calc_->loadCap(to_pin, dcalc_ap)
: 0.0;
PwrActivity activity = findClkedActivity(to_pin, inst_clk);
if (to_port->direction()->isAnyOutput())
findSwitchingPower(cell, to_port, activity, load_cap, corner, result);
if (to_port->direction()->isAnyOutput()) {
float volt = portVoltage(corner_cell, to_port, dcalc_ap);
float switching = .5 * load_cap * volt * volt * activity.activity();
debugPrint(debug_, "power", 2, "switching %s/%s activity = %.2e volt = %.2f %.3e",
cell->name(),
to_port->name(),
activity.activity(),
volt,
switching);
result.switching() += switching;
}
}
}
delete pin_iter;
}
void
Power::findSwitchingPower(LibertyCell *cell,
const LibertyPort *to_port,
PwrActivity &activity,
float load_cap,
const Corner *corner,
// Return values.
PowerResult &result)
{
MinMax *mm = MinMax::max();
const DcalcAnalysisPt *dcalc_ap = corner->findDcalcAnalysisPt(mm);
LibertyCell *corner_cell = cell->cornerCell(dcalc_ap);
float volt = portVoltage(corner_cell, to_port, dcalc_ap);
float switching = .5 * load_cap * volt * volt * activity.activity();
debugPrint(debug_, "power", 2, "switching %s/%s activity = %.2e volt = %.2f %.3e",
cell->name(),
to_port->name(),
activity.activity(),
volt,
switching);
result.switching() += switching;
}
////////////////////////////////////////////////////////////////

7
power/Power.hh
View File

@ -144,13 +144,6 @@ protected:
const Clock *inst_clk,
// Return values.
PowerResult &result);
void findSwitchingPower(LibertyCell *cell,
const LibertyPort *to_port,
PwrActivity &activity,
float load_cap,
const Corner *corner,
// Return values.
PowerResult &result);
float getSlew(Vertex *vertex,
const RiseFall *rf,
const Corner *corner);