coriolis/anabatic/src/AutoContact.cpp

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// -*- C++ -*-
//
// This file is part of the Coriolis Software.
// Copyright (c) UPMC 2008-2018, All Rights Reserved
//
// +-----------------------------------------------------------------+
// | C O R I O L I S |
// | A n a b a t i c - Routing Toolbox |
// | |
// | Author : Jean-Paul CHAPUT |
// | E-mail : Jean-Paul.Chaput@lip6.fr |
// | =============================================================== |
// | C++ Module : "./AutoContact.cpp" |
// +-----------------------------------------------------------------+
#include <cstdlib>
#include <climits>
#include <sstream>
#include "hurricane/Bug.h"
#include "hurricane/Error.h"
#include "hurricane/Warning.h"
#include "hurricane/Layer.h"
#include "hurricane/ViaLayer.h"
#include "hurricane/BasicLayer.h"
#include "hurricane/Technology.h"
#include "hurricane/Net.h"
#include "hurricane/Plug.h"
#include "hurricane/RoutingPad.h"
#include "hurricane/Vertical.h"
#include "hurricane/Horizontal.h"
#include "hurricane/DebugSession.h"
#include "crlcore/RoutingGauge.h"
#include "anabatic/AutoContact.h"
#include "anabatic/AutoContactTerminal.h"
#include "anabatic/AutoContactTurn.h"
#include "anabatic/AutoContactHTee.h"
#include "anabatic/AutoContactVTee.h"
#include "anabatic/AutoVertical.h"
#include "anabatic/AutoHorizontal.h"
#include "anabatic/AnabaticEngine.h"
#include "anabatic/Session.h"
namespace Anabatic {
using std::ostringstream;
using Hurricane::Bug;
using Hurricane::Error;
using Hurricane::Warning;
using Hurricane::DebugSession;
using Hurricane::ForEachIterator;
// -------------------------------------------------------------------
// Class : "Anabatic::AutoContact".
size_t AutoContact::_maxId = 0;
size_t AutoContact::_allocateds = 0;
const Name AutoContact::_goName = "Anabatic::AutoContact";
AutoContact::AutoContact ( GCell* gcell, Contact* contact )
: _id (contact->getId())
, _contact (contact)
, _gcell (gcell)
, _flags (CntInvalidatedCache|CntInCreationStage)
, _xMin (_gcell->getXMin())
, _xMax (_gcell->getConstraintXMax())
, _yMin (_gcell->getYMin())
, _yMax (_gcell->getConstraintYMax())
{
_allocateds++;
_gcell->addContact ( this );
}
void AutoContact::_preCreate ( GCell* gcell, Net* net, const Layer* layer )
{
if (not gcell) throw Error("AutoContact::_preCreate(): GCell* parameter must not be NULL.");
if (not net ) throw Error("AutoContact::_preCreate(): Net* parameter must not be NULL.");
if (not layer) throw Error("AutoContact::_preCreate(): const Layer* parameter must not be NULL.");
}
void AutoContact::_postCreate ()
{
restoreNativeConstraintBox();
cdebug_log(145,0) << "Native CBox: " << this
<< " <" << DbU::getValueString(getCBXMin())
<< " " << DbU::getValueString(getCBYMin())
<< " " << DbU::getValueString(getCBXMax())
<< " " << DbU::getValueString(getCBYMax()) << ">" << endl;
Session::link( this );
invalidate( Flags::Topology );
cdebug_log(145,0) << "AutoContact::_postCreate() - " << this << " in " << _gcell << endl;
}
void AutoContact::destroy ()
{
_preDestroy ();
delete this;
}
void AutoContact::_preDestroy ()
{
DebugSession::open( _contact->getNet(), 140, 150 );
cdebug_log(145,0) << "AutoContact::_preDestroy() - <AutoContact id:" << _id << ">" << endl;
#if 0
bool canDestroyBase = true;
if (not _contact->getSlaveComponents().isEmpty()) {
ostringstream message;
message << "Base contact still have slaves components, cancelled.\n"
<< " on: " << this;
for ( Component* component : _contact->getSlaveComponents() ) {
message << "\n | " << component;
}
cerr << Error( message.str() ) << endl;
canDestroyBase = false;
}
#endif
if (not Session::doDestroyTool()) {
_gcell->removeContact( this );
Session::unlink( this );
}
#if 0
if (Session::doDestroyBaseContact() and canDestroyBase)
_contact->destroy();
#endif
DebugSession::close();
}
AutoContact::~AutoContact ()
{ _allocateds--; }
size_t AutoContact::getAllocateds ()
{ return _allocateds; }
const Name& AutoContact::getStaticName ()
{ return _goName; }
bool AutoContact::canDestroy ( Flags flags ) const
{
if (not _contact->getSlaveComponents().isEmpty()) {
if (flags & Flags::WarnOnError) {
cerr << Error("Base contact still have slaves components, cancelled.\n"
" (%s)"
,_getString().c_str()) << endl;
}
return false;
}
return true;
}
Katana manage wide wires, and they can also be symmetric. * New: In Anabatic::AutoContact and the derived classes, manages wide wires. The contact self dimension itself according to the segments it is connected to. Special case for the AutoContactTerminal which also read the size of the component it is anchored upon. New refresh method "updateSize()" and flag CntInvalidatedWidth. to compute the size. In AutoContactTerminal, compute the constraint box according to the width of the segment. * New: In Anabatic::AutoSegment, flags are now implemented as "static const" attributes of the class. The flags are stored into a uint64_t as they are more than 32. Added new flag "SegWide" and associated predicates. * Change: In GCellTopology::_doHChannel() and GCellTopology::_doVChannel(), uses the simpler overload of AutoSegment::create() in order to detect the wire width automatically. * New: In Katana::Manipulator, split insertToTrack() and forceToTrack() into a one-track method and a segment level method that iterate over the track span of the segment. * New: In Katana::SegmentFsm, for each cost in the table, now allow access to a specific track. So the base functions have now two parameters: "icost" and "itrack" (has a cost can have multiple tracks in the case of wide segments). * Change: In Katana::TrackElement, remove the index of the element inside it's track, as for a wide segment it will not be meaningful for the non-base track. This means that we have to use the Track::find() method each time instead. Remove the wide flag, as it is a duplicate of the one in AutoSegment. Added a getTrackCount() method to tell the number of track the segment is inserted into. Needed in the Track destroy step to delete a segment only when the last track that refers it is destroyed. Added getSymmetricAxis() to correct the computation of the symmetric base track in case of wide segment as the base track is not centered but the the leftmost one. * Change: In Track::insert() insert wide segments in their whole track span. * Change: In TrackCost, create an array of costs according to the segment track span. * Change: In TrackSegment::create(), now activate the factory and create wide segments. * Bug: In Katana::AutoSegments_Perpandicular, correct the debug indentation problem (ever shifting to the right).
2017-07-28 08:30:22 -05:00
const Name& AutoContact::getName () const { return _goName; }
AutoSegments AutoContact::getAutoSegments () { return new AutoSegments_CachedOnContact(this); }
AutoSegment* AutoContact::getPerpandicular ( const AutoSegment* ) const { return NULL; }
AutoHorizontal* AutoContact::getHorizontal1 () const { return NULL; }
AutoHorizontal* AutoContact::getHorizontal2 () const { return NULL; }
AutoVertical* AutoContact::getVertical1 () const { return NULL; }
AutoVertical* AutoContact::getVertical2 () const { return NULL; }
Forgot to perform Track re-order after removing zero-length segments. * Change: In Anabatic::Autocontact, replace getMinDepth() and getMaxDepth() by getDepthSpan(). * New: In Anabatic::AutoSegment::canMoveUp(), add an optional check of low up density (Flags::CheckLowUpDensity). Allows to move up a segment if the up density is (very) low, and in this case it's more efficient than breaking it to fit in the lower layer. canMoveUp() is now able to perform the same work as canPivotUp() if *not* supplied the flag Flags::IgnoreContacts. * New: In Katana, in GlobalRouting::DigitalDistance() now take into account the cost of a VIA (currently set to 2.5). Need to known the Net currently routed in the DigitalDistance object itself. * Change: In Katana::Track::Element::canPivotUp(), now also takes a flag parameter. * Change: In Katana::Manipulator, new flag IgnoreContacts to mirror the one of Anabatic. * Change: In Katana::SegmentFsm, allocate once a Manipulator object instead of many times on the fly. In SegmentFsm::_slackenGlobal(), in the slacken state, if the up density is (very) low, bypass to move up instead of slackening. This solve better the routing of the control part of the register file. The register file having a pathological case of terminal placement: many punctual terminals aligneds in METAL2 *and* a grid of METAL2 and METAL3 blockages near below... * Bug: In Katana::Session::_revalidate(), after removing the zero-length segments, forgot to re-order the track, leading to many stranges effects as the indexes where no longer coherent in the Track.
2016-09-20 04:30:45 -05:00
void AutoContact::getDepthSpan ( size_t& minDepth, size_t& maxDepth ) const
{
Forgot to perform Track re-order after removing zero-length segments. * Change: In Anabatic::Autocontact, replace getMinDepth() and getMaxDepth() by getDepthSpan(). * New: In Anabatic::AutoSegment::canMoveUp(), add an optional check of low up density (Flags::CheckLowUpDensity). Allows to move up a segment if the up density is (very) low, and in this case it's more efficient than breaking it to fit in the lower layer. canMoveUp() is now able to perform the same work as canPivotUp() if *not* supplied the flag Flags::IgnoreContacts. * New: In Katana, in GlobalRouting::DigitalDistance() now take into account the cost of a VIA (currently set to 2.5). Need to known the Net currently routed in the DigitalDistance object itself. * Change: In Katana::Track::Element::canPivotUp(), now also takes a flag parameter. * Change: In Katana::Manipulator, new flag IgnoreContacts to mirror the one of Anabatic. * Change: In Katana::SegmentFsm, allocate once a Manipulator object instead of many times on the fly. In SegmentFsm::_slackenGlobal(), in the slacken state, if the up density is (very) low, bypass to move up instead of slackening. This solve better the routing of the control part of the register file. The register file having a pathological case of terminal placement: many punctual terminals aligneds in METAL2 *and* a grid of METAL2 and METAL3 blockages near below... * Bug: In Katana::Session::_revalidate(), after removing the zero-length segments, forgot to re-order the track, leading to many stranges effects as the indexes where no longer coherent in the Track.
2016-09-20 04:30:45 -05:00
minDepth = (size_t)-1;
maxDepth = 0;
Component* anchor = getAnchor ();
if (anchor) {
minDepth = std::min( minDepth, Session::getRoutingGauge()->getLayerDepth(anchor->getLayer()) );
Forgot to perform Track re-order after removing zero-length segments. * Change: In Anabatic::Autocontact, replace getMinDepth() and getMaxDepth() by getDepthSpan(). * New: In Anabatic::AutoSegment::canMoveUp(), add an optional check of low up density (Flags::CheckLowUpDensity). Allows to move up a segment if the up density is (very) low, and in this case it's more efficient than breaking it to fit in the lower layer. canMoveUp() is now able to perform the same work as canPivotUp() if *not* supplied the flag Flags::IgnoreContacts. * New: In Katana, in GlobalRouting::DigitalDistance() now take into account the cost of a VIA (currently set to 2.5). Need to known the Net currently routed in the DigitalDistance object itself. * Change: In Katana::Track::Element::canPivotUp(), now also takes a flag parameter. * Change: In Katana::Manipulator, new flag IgnoreContacts to mirror the one of Anabatic. * Change: In Katana::SegmentFsm, allocate once a Manipulator object instead of many times on the fly. In SegmentFsm::_slackenGlobal(), in the slacken state, if the up density is (very) low, bypass to move up instead of slackening. This solve better the routing of the control part of the register file. The register file having a pathological case of terminal placement: many punctual terminals aligneds in METAL2 *and* a grid of METAL2 and METAL3 blockages near below... * Bug: In Katana::Session::_revalidate(), after removing the zero-length segments, forgot to re-order the track, leading to many stranges effects as the indexes where no longer coherent in the Track.
2016-09-20 04:30:45 -05:00
maxDepth = std::max( maxDepth, Session::getRoutingGauge()->getLayerDepth(anchor->getLayer()) );
}
for ( AutoSegment* segment : const_cast<AutoContact*>(this)->getAutoSegments() ) {
minDepth = std::min( minDepth, Session::getRoutingGauge()->getLayerDepth(segment->getLayer()) );
Forgot to perform Track re-order after removing zero-length segments. * Change: In Anabatic::Autocontact, replace getMinDepth() and getMaxDepth() by getDepthSpan(). * New: In Anabatic::AutoSegment::canMoveUp(), add an optional check of low up density (Flags::CheckLowUpDensity). Allows to move up a segment if the up density is (very) low, and in this case it's more efficient than breaking it to fit in the lower layer. canMoveUp() is now able to perform the same work as canPivotUp() if *not* supplied the flag Flags::IgnoreContacts. * New: In Katana, in GlobalRouting::DigitalDistance() now take into account the cost of a VIA (currently set to 2.5). Need to known the Net currently routed in the DigitalDistance object itself. * Change: In Katana::Track::Element::canPivotUp(), now also takes a flag parameter. * Change: In Katana::Manipulator, new flag IgnoreContacts to mirror the one of Anabatic. * Change: In Katana::SegmentFsm, allocate once a Manipulator object instead of many times on the fly. In SegmentFsm::_slackenGlobal(), in the slacken state, if the up density is (very) low, bypass to move up instead of slackening. This solve better the routing of the control part of the register file. The register file having a pathological case of terminal placement: many punctual terminals aligneds in METAL2 *and* a grid of METAL2 and METAL3 blockages near below... * Bug: In Katana::Session::_revalidate(), after removing the zero-length segments, forgot to re-order the track, leading to many stranges effects as the indexes where no longer coherent in the Track.
2016-09-20 04:30:45 -05:00
maxDepth = std::max( maxDepth, Session::getRoutingGauge()->getLayerDepth(segment->getLayer()) );
}
}
void AutoContact::getLengths ( DbU::Unit* lengths, AutoSegment::DepthLengthSet& processeds )
{
DbU::Unit hSideLength = getGCell()->getSide( Flags::Horizontal ).getSize();
DbU::Unit vSideLength = getGCell()->getSide( Flags::Vertical ).getSize();
for ( AutoSegment* segment : getAutoSegments() ) {
bool isSourceHook = (segment->getAutoSource() == this);
if (processeds.find(segment) != processeds.end()) continue;
processeds.insert( segment );
size_t depth = Session::getRoutingGauge()->getLayerDepth(segment->getLayer());
DbU::Unit length;
if (segment->isLocal()) {
length = segment->getLength();
lengths[depth] += length;
DbU::Unit sideLength = (segment->isHorizontal()) ? hSideLength : vSideLength;
if ( not segment->isUnbound() and (abs(length) > sideLength) )
cerr << Error("Suspicious length:%.2f of %s."
,DbU::getValueString(length).c_str()
,getString(segment).c_str()) << endl;
} else {
if (segment->isHorizontal()) {
if (isSourceHook)
lengths[depth] += _gcell->getXMax() - segment->getSourceX();
else
lengths[depth] += segment->getTargetX() - _gcell->getXMin();
} else {
if (isSourceHook)
lengths[depth] += _gcell->getYMax() - segment->getSourceY();
else
lengths[depth] += segment->getTargetY() - _gcell->getYMin();
}
}
}
}
Box AutoContact::getNativeConstraintBox () const
{
if (isUserNativeConstraints()) return getConstraintBox();
if (isFixed()) return Box(_contact->getPosition());
return _gcell->getConstraintBox();
}
Interval AutoContact::getNativeUConstraints ( Flags direction ) const
{
Box nativeConstraints = getNativeConstraintBox();
Interval constraint;
if (direction & Flags::Horizontal) {
constraint = Interval( nativeConstraints.getXMin(), nativeConstraints.getXMax() );
} else {
constraint = Interval( nativeConstraints.getYMin(), nativeConstraints.getYMax() );
}
//if (direction & Flags::NoGCellShrink) constraint.inflate( 0, GCell::getTopRightShrink() );
return constraint;
}
Interval AutoContact::getUConstraints ( Flags direction ) const
{
Interval constraint;
if (direction & Flags::Horizontal) {
constraint = Interval( getCBXMin(), getCBXMax() );
} else {
constraint = Interval( getCBYMin(), getCBYMax() );
}
//if (direction & Flags::NoGCellShrink) constraint.inflate( 0, GCell::getTopRightShrink() );
return constraint;
}
void AutoContact::invalidate ( Flags flags )
{
if (not isInvalidated()) {
cdebug_log(145,1) << "AutoContact::invalidate() - " << this << endl;
cdebug_log(145,0) << "flags:" << flags.asString(FlagsFunction) << endl;
setFlags( CntInvalidated );
if (flags & Flags::Topology ) setFlags( CntInvalidatedCache );
Session::invalidate( this );
_invalidate( flags );
getGCell()->invalidate();
cdebug_tabw(145,-1);
}
}
void AutoContact::setGCell ( GCell* gcell )
{
invalidate();
if (_gcell) _gcell->removeContact( this );
_gcell = gcell;
if (_gcell) {
cdebug_log(145,0) << "AutoContact::setGCell() " << gcell << endl;
_gcell->addContact( this );
_contact->setPosition( _gcell->getCenter() );
_xMin = _gcell->getXMin();
_yMin = _gcell->getYMin();
_xMax = _gcell->getConstraintXMax();
_yMax = _gcell->getConstraintYMax();
if (cdebug.enabled()) {
cdebug_log(145,0) << "* deltas: [" << DbU::getValueString(_xMin)
<< " " << DbU::getValueString(_yMin)
<< " " << DbU::getValueString(_xMax)
<< " " << DbU::getValueString(_yMax)
<< "]" << endl;
}
} else {
cerr << Bug( "NULL GCell for %s.", _getString().c_str() ) << endl;
}
}
Katana manage wide wires, and they can also be symmetric. * New: In Anabatic::AutoContact and the derived classes, manages wide wires. The contact self dimension itself according to the segments it is connected to. Special case for the AutoContactTerminal which also read the size of the component it is anchored upon. New refresh method "updateSize()" and flag CntInvalidatedWidth. to compute the size. In AutoContactTerminal, compute the constraint box according to the width of the segment. * New: In Anabatic::AutoSegment, flags are now implemented as "static const" attributes of the class. The flags are stored into a uint64_t as they are more than 32. Added new flag "SegWide" and associated predicates. * Change: In GCellTopology::_doHChannel() and GCellTopology::_doVChannel(), uses the simpler overload of AutoSegment::create() in order to detect the wire width automatically. * New: In Katana::Manipulator, split insertToTrack() and forceToTrack() into a one-track method and a segment level method that iterate over the track span of the segment. * New: In Katana::SegmentFsm, for each cost in the table, now allow access to a specific track. So the base functions have now two parameters: "icost" and "itrack" (has a cost can have multiple tracks in the case of wide segments). * Change: In Katana::TrackElement, remove the index of the element inside it's track, as for a wide segment it will not be meaningful for the non-base track. This means that we have to use the Track::find() method each time instead. Remove the wide flag, as it is a duplicate of the one in AutoSegment. Added a getTrackCount() method to tell the number of track the segment is inserted into. Needed in the Track destroy step to delete a segment only when the last track that refers it is destroyed. Added getSymmetricAxis() to correct the computation of the symmetric base track in case of wide segment as the base track is not centered but the the leftmost one. * Change: In Track::insert() insert wide segments in their whole track span. * Change: In TrackCost, create an array of costs according to the segment track span. * Change: In TrackSegment::create(), now activate the factory and create wide segments. * Bug: In Katana::AutoSegments_Perpandicular, correct the debug indentation problem (ever shifting to the right).
2017-07-28 08:30:22 -05:00
void AutoContact::updateSize ()
{
if (isInvalidatedWidth()) {
size_t minDepth = 0;
size_t maxDepth = 0;
getDepthSpan( minDepth, maxDepth );
if (getVertical1() and getVertical1()->isWide()) {
size_t vdepth = (Session::getLayerDepth(getVertical1()->getLayer()) == maxDepth) ? maxDepth : minDepth;
DbU::Unit width = getVertical1()->getWidth();
width += Session::getViaWidth(vdepth) - Session::getWireWidth(vdepth);
setWidth( width );
}
if (getHorizontal1() and getHorizontal1()->isWide()) {
size_t hdepth = (Session::getLayerDepth(getHorizontal1()->getLayer()) == maxDepth) ? maxDepth : minDepth;
DbU::Unit width = getHorizontal1()->getWidth();
width += Session::getViaWidth(hdepth) - Session::getWireWidth(hdepth);
setHeight( width );
}
unsetFlags ( CntInvalidatedWidth );
}
}
void AutoContact::_getTopology ( Contact* support, Component*& anchor, Horizontal**& horizontals, Vertical**& verticals, size_t size )
{
size_t hcount = 0;
size_t vcount = 0;
for ( size_t i=0 ; i<size ; ++i ) {
horizontals[i] = NULL;
verticals [i] = NULL;
}
anchor = support->getAnchor();
for ( Component* component : support->getSlaveComponents() ) {
Horizontal* h = dynamic_cast<Horizontal*>(component);
if (h != NULL) {
if (hcount < size) horizontals[hcount++] = h;
} else {
Vertical* v = dynamic_cast<Vertical*>(component);
if ( (v != NULL) and (vcount < size) ) verticals[vcount++] = v;
}
}
}
void AutoContact::showTopologyError ( const std::string& message, Flags flags )
{
Component* anchor = NULL;
Horizontal** horizontals = new Horizontal* [10];
Vertical** verticals = new Vertical* [10];
if (not (flags & Flags::CParanoid)) cparanoid.setStreamMask( mstream::PassThrough );
_getTopology ( base(), anchor, horizontals, verticals, 10 );
cparanoid << Error("In topology of %s",getString(this).c_str()) << endl;
if (anchor) cparanoid << " A: " << anchor << endl;
for ( size_t i=0 ; (i<10) and (horizontals[i] != NULL); ++i ) {
AutoSegment* autoSegment = Session::lookup ( horizontals[i] );
if (autoSegment != NULL)
cparanoid << " " << (autoSegment->isGlobal()?'G':'L') << ": " << autoSegment << endl;
else
cparanoid << " ?: " << horizontals[i] << endl;
}
for ( size_t i=0 ; (i<10) and (verticals[i] != NULL); ++i ) {
AutoSegment* autoSegment = Session::lookup ( verticals[i] );
if (autoSegment != NULL)
cparanoid << " " << (autoSegment->isGlobal()?'G':'L') << ": " << autoSegment << endl;
else
cparanoid << " ?: " << verticals[i] << endl;
}
cparanoid << " " << message << endl;
if (not (flags & Flags::CParanoid)) cparanoid.unsetStreamMask( mstream::PassThrough );
delete [] horizontals;
delete [] verticals;
}
void AutoContact::checkTopology ()
{
//cdebug_log(145,0) << "checkTopology() NOT RE-IMPLEMENTED YET " << this << endl;
}
void AutoContact::forceOnGrid ( Point )
{
cerr << Warning( "AutoContact::forcedOnGrid() not implemented for this derived class.\n"
" %s\n"
, getString(this).c_str()
) << endl;
}
bool AutoContact::isTee ( Flags direction ) const
{
return (isHTee() and (direction & Flags::Horizontal))
or (isVTee() and (direction & Flags::Vertical ));
}
bool AutoContact::canMoveUp ( const AutoSegment* moved ) const
{
cdebug_log(149,0) << "AutoContact::canMoveUp() " << this << endl;
size_t viaDepth = 100;
RoutingGauge* rg = Session::getRoutingGauge();
size_t movedDepth = rg->getLayerDepth(moved->getLayer());
Component* anchor = getAnchor();
if (anchor) {
viaDepth = rg->getLayerDepth( anchor->getLayer() );
cdebug_log(149,0) << "| Anchor depth: " << viaDepth << endl;
}
for ( AutoSegment* segment : const_cast<AutoContact*>(this)->getAutoSegments() ) {
if (segment == moved) continue;
size_t depth = rg->getLayerDepth(segment->getLayer());
if (viaDepth == 100) viaDepth = depth;
else
if (viaDepth != depth) return false;
cdebug_log(149,0) << "| Segment depth: " << depth << endl;
}
return (movedDepth+1 == viaDepth);
}
void AutoContact::setConstraintBox ( const Box& box )
{
setCBXMin ( box.getXMin() );
setCBXMax ( box.getXMax() );
setCBYMin ( box.getYMin() );
setCBYMax ( box.getYMax() );
In Anabatic/Katana, add support for VH gauges (real technos). * Change: In Anabatic::AutoContactTerminal::getNativeConstraintBox(), when the anchor is a RoutingPad (which must be always the case), perform the true computation of it's position based on the segment occurrence. It is a important change, previously the area was in fact the "center line" of the connector while now it is really an area (mandatory for "half-offgrid" terminals of real technologies). The change is not complete yet, the area should be shrinked by the half size of a VIA, because the area applies to the center coordinate of the VIA (to be done quickly). * Bug: In Anabatic::AutoContactTurn::updateTopology(), when a dogleg is created (restore connexity after a layer change) the layer of the VIA, based on the segments it connects to must be re-computed *after* the dogleg has been made. * Change: In all files of Anabatic, when comparing two layers, no longer use the Layer pointer itself, but the layer mask. This allow a transparent management of both real and symbolic layers (which do share the same mask). Real metal layers (not VIAs) will be BasicLayer and symbolic metal layers will be RegularLayer. * New: Anabatic::Configuration::selectRpComponent(), select the best RoutingPad component for metal1 terminals. Look for the metal1 component with the biggest accessibility on-grid. RoutingPad using other metals are left untoucheds. * New: New function Anabatic::Vertex::getNeighbor(Edge*) to get the neighbor Vertex through an Edge*. This method allows to write clearer code as we no longer need to access the neighbor through the underlying GCell. Also add proxies for GCell methods in Vertex. * Bug: In Anabatic::Dijkstra::_toSources(), in the ripup stage, when a component with multiples vertexes is reached *and* two of it's vertexes are reached *at the same time* (one from which we backtrack and one still in the queue) extraneous edges may be created by _materialize(). Case occurs on snx/c35b4, "abc_5360_n903_1". To solve this, Dijkstra::_toSource() is modificated, the "from" edges of the newly reacheds vertexes are reset to NULL, *except* for the one we will be backtracking from. That is, the one given in the source argument. * Change: In Anabatic::NetBuilder class, put the various Hooks and RoutingPad sorting functions as class ones. * Bug: In AutoSegment::setLayer(), raise the SegInvalidatedFayer flag. This unset flag was causing AutoContactTurn::updateTopology() to not work as expected and making gaps, this was the cause of the last remaining warnings about layer connexity.
2018-01-06 09:55:53 -06:00
cdebug_log(149,0) << "setConstraintBox() - " << this << " " << getConstraintBox()
<< " from:" << box << endl;
cdebug_log(149,0) << "* " << _gcell << endl;
}
bool AutoContact::restrictConstraintBox ( DbU::Unit constraintMin
, DbU::Unit constraintMax
, Flags flags
)
{
cdebug_log(149,0) << "restrictConstraintBox() - " << this << " " << getConstraintBox() << endl;
if (flags & Flags::Horizontal) {
if ( (constraintMin > getCBYMax()) or (constraintMax < getCBYMin()) ) {
if ( Session::isInDemoMode() or not (flags & Flags::WarnOnError) ) return false;
cerr << Error ( "Incompatible DY restriction on %s", _getString().c_str() ) << endl;
if ( constraintMin > getCBYMax() )
cerr << Error ( "(constraintMin > CBYMax : %s > %s)"
, DbU::getValueString(constraintMin).c_str()
, DbU::getValueString(getCBYMax()).c_str() )
<< endl;
if ( constraintMax < getCBYMin() )
cerr << Error ( "(constraintMax < CBYMin : %s < %s)"
, DbU::getValueString(constraintMax).c_str()
, DbU::getValueString(getCBYMin()).c_str() )
<< endl;
return false;
}
setCBYMin ( std::max(getCBYMin(),constraintMin) );
setCBYMax ( std::min(getCBYMax(),constraintMax) );
} else if (flags & Flags::Vertical) {
if ( (constraintMin > getCBXMax()) || (constraintMax < getCBXMin()) ) {
if ( Session::isInDemoMode() or not (flags & Flags::WarnOnError) ) return false;
cerr << Error ( "Incompatible DX restriction on %s", _getString().c_str() ) << endl;
if ( constraintMin > getCBXMax() )
cerr << Error ( "(constraintMin > CBXMax : %s > %s)"
, DbU::getValueString(constraintMin).c_str()
, DbU::getValueString(getCBXMax()).c_str() )
<< endl;
if ( constraintMax < getCBXMin() )
cerr << Error ( "(constraintMax < CBXMin : %s < %s)"
, DbU::getValueString(constraintMax).c_str()
, DbU::getValueString(getCBXMin()).c_str() )
<< endl;
return false;
}
setCBXMin ( std::max(getCBXMin(),constraintMin) );
setCBXMax ( std::min(getCBXMax(),constraintMax) );
}
cdebug_log(149,0) << "restrictConstraintBox() - " << this << " " << getConstraintBox() << endl;
return true;
}
void AutoContact::restoreNativeConstraintBox ()
{ setConstraintBox ( getNativeConstraintBox() ); }
Box& AutoContact::intersectConstraintBox ( Box& box ) const
{ return box = box.getIntersection ( getConstraintBox() ); }
void AutoContact::migrateConstraintBox ( AutoContact* other )
{
if (_gcell != other->_gcell) {
cerr << Error( "AutoContact::migrateConstraintBox(): AutoContacts do not belongs to the same GCell:\n"
" from: %s\n"
" to: %s"
, getString(other).c_str()
, getString(this ).c_str()
) << endl;
return;
}
setConstraintBox( other->getConstraintBox() );
other->restoreNativeConstraintBox();
}
Box AutoContact::getBoundingBox () const
{ return _gcell->getBoundingBox (); }
void AutoContact::translate ( const DbU::Unit& tx, const DbU::Unit& ty )
{
cerr << Warning("Calling AutoContact::translate() is likely a bug.") << endl;
_contact->translate ( tx, ty );
}
void AutoContact::setLayerAndWidth ( size_t delta, size_t depth )
{
if (delta == 0) {
setLayer( Session::getRoutingLayer(depth) );
setSizes( Session::getWireWidth (depth)
, Session::getWireWidth (depth) );
} else {
setLayer( Session::getContactLayer(depth) );
setSizes( Session::getViaWidth (depth)
, Session::getViaWidth (depth) );
}
}
AutoContact* AutoContact::createFrom ( Contact* hurricaneContact )
{
AutoContact* autoContact = NULL;
Component* anchor;
size_t hSize = 0;
size_t vSize = 0;
Horizontal** horizontals = new Horizontal* [4];
Vertical** verticals = new Vertical* [4];
GCell* gcell = Session::getAnabatic()->getGCellUnder( hurricaneContact->getCenter() );
if (not gcell) {
throw Error("AutoContact::createFrom( %s ):\n"
" Contact is *not* under a GCell (outside routed area?)"
, getString(hurricaneContact).c_str()
);
}
_getTopology ( hurricaneContact, anchor, horizontals, verticals, 4 );
for ( size_t i=0 ; i<4 ; ++i ) {
hSize += (horizontals[i] != NULL) ? 1 : 0;
vSize += (verticals [i] != NULL) ? 1 : 0;
}
if (anchor) {
if (hSize+vSize == 1) {
autoContact = new AutoContactTerminal( gcell, hurricaneContact );
autoContact->_postCreate();
autoContact->unsetFlags( CntInCreationStage );
}
} else {
if ((hSize == 1) and (vSize == 1)) {
autoContact = new AutoContactTurn ( gcell, hurricaneContact );
autoContact->_postCreate();
autoContact->unsetFlags( CntInCreationStage );
} else if ((hSize == 2) and (vSize == 1)) {
autoContact = new AutoContactHTee ( gcell, hurricaneContact );
autoContact->_postCreate();
autoContact->unsetFlags( CntInCreationStage );
} else if ((hSize == 1) and (vSize == 2)) {
autoContact = new AutoContactVTee ( gcell, hurricaneContact );
}
}
if (not autoContact) {
throw Error("AutoContact::createFrom( %s ):\n"
" Contact do not have a manageable topology (a:%u, h:%u, v:%u)"
, getString(hurricaneContact).c_str()
, ((anchor) ? 1 : 0)
, hSize
, vSize
);
}
autoContact->_postCreate();
autoContact->unsetFlags( CntInCreationStage );
return autoContact;
}
string AutoContact::_getTypeName () const
{ return "AutoContact"; }
string AutoContact::_getString () const
{
string s = _contact->_getString();
size_t i = s.find(' ');
if (i != string::npos) {
s.erase ( i+1, 7 );
s.insert( i+1, _getTypeName() );
}
//s.insert( 1, "id: " );
//s.insert( 4, getString(_id) );
s.insert( s.size()-1, (isFixed ())?" F":" -" );
s.insert( s.size()-1, (isTerminal ())? "T": "-" );
Improved management of AutoContactTerminal for VH gauges (real ones). * New: In Anabatic & Katana, add the new "drag" feature. With VH gauges used by real technologies (M1-H, M2-V, M3-H) a new routing configuration that was not efficiently handled did appear. While the preferred routing direction for metal1 is officially horizontal, due to the way the standard cell must be designed, their metal1 terminals are still verticals (or punctuals). Thus, when connecting to them, we face the case where the metal1 terminal (RoutingPad) is vertical *and* the metal2 wire is also vertical. With that setup, the position of the AutoContactTerminal via12 cannot be deduced, it may range all the way over the metal1 RoutingPad. What may define it's position is the metal3 the metal2 finally connects to. That, is, when we have one horizontal (the metal3) and one vertical (the metal1 RoutingPad). The intermediate wire of metal2 can be kept to a minimum size by "dragging" the via12 close to the via23 when the metal3 wire is moved. * New: In Anabatic & Katana, problem of closely vertically aligneds RoutingPads in metal1 is managed first in PreProcess by restricting the span of the connecteds metal3 and in _makeDogleg also by restricting the span even more tightly (to the RoutingPad itself). * New: In Anabatic::AutoContactTerminal, add the "drag" support. Automatically check if the connecting segment is in the same direction as the RoutingPad, if so, sets the "SegDrag" flag. The dragging state can be known with the "::canDrag()" predicate. * New: In Anabatic::AutoHorizontal, add the "drag" support. The drag state can be known with the "::isDrag()" predicate. In "::_makeDogleg()", when making a dogleg on a dragable segment pass the drag state correctly and restrict the perpandicular span of the perpandicular to the RoutingPad (though segment user constraints). If we make a dogleg on the metal2 is it likely than we cannot go straigth out vertically from the RoutingPad, so the new perpandicular *is* restricted to the RoutingPad span. Idem for AutoVertical. * New: In Katana::Manipulator, add method "::dragMinimize()" which find a hole where to minimize a draggable segment. We finally did not use it, but keep it for potential further use. * New: In Katana::PreProcess, adds a "protectAlignedaccesses()" local function to check for vertically aligned metal1 RoutingPads, in that case setup user constraints on the metal3 segments so they cannot completly cover the other RoutingPad with metal2. We also keep a "metal2protect()" function that create a fixed segment to lock/protect a RoutingPad. Not used for now. * New: In Katana::Session, add a RoutingPad locking event mechanism. This allows us to request the creation of a locking (fixed segment) over a draggable segment. Not used for now. Lock events are processeds before all others as they create new TrackElements. * New: In Katana::Track, "::getNextFree()" and "::getPreviousFree()" method to find the nearest free interval in a Track after/before a position. * Bug: In Anabatic::AutoHorizontal::getConstraints(), merge with user constraints *only* if it's not an empty interval (as we use min/max functions). Idem for AutoVertical. * Bug: In AutoSegments_OnContacts::Locator::isValid(), the boolean test must be inverted. Seems it never worked, but we never used it until now...
2018-01-25 04:58:04 -06:00
s.insert( s.size()-1, (canDrag ())? "D": "-" );
s.insert( s.size()-1, (isHTee ())? "h": "-" );
s.insert( s.size()-1, (isVTee ())? "v": "-" );
s.insert( s.size()-1, (isInvalidated ())? "i": "-" );
s.insert( s.size()-1, (isInvalidatedCache())? "c": "-" );
//s.insert( s.size()-1, getString(getConstraintBox()));
return s;
}
Record* AutoContact::_getRecord () const
{
Record* record = _contact->_getRecord ();
record->add ( getSlot ( "_gcell" , _gcell ) );
record->add ( getSlot ( "_constraintBox", getConstraintBox() ) );
record->add ( getSlot ( "_flags" , _flags ) );
return record;
}
} // Anabatic namespace.