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coriolis
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Support for non-stacked VIAs in Katana. 

* New: In Katana::Configuration, added option:
    "cfg.katana.disableStackedVias" (default to false), so the router
    do not stack VIAs on top of each other.
* Bug: In NegociateWindow::loadRoutingPads(), create TrackMarkers using
    the right depth when the gauge starts with non-routable ones.
* New: In Track::addOverlapCost(), when disableStackedVias is active,
    uses the markers from the below terminals to tag the cost as
    "infinite", so the track *cannot* be used by the marker's net
    owner. Can be refined by checking that we are not at a segment's
    end but will do for now.
This commit is contained in:
Jean-Paul Chaput 2023-01-14 22:35:57 +01:00
parent 7d88b14334
commit 9df5fc838c
6 changed files with 28 additions and 6 deletions
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2
katana/src/Configuration.cpp
View File

@ -57,6 +57,7 @@ namespace Katana {
, _flags (0)
, _profileEventCosts (Cfg::getParamBool ("katana.profileEventCosts" ,false )->asBool())
, _runRealignStage (Cfg::getParamBool ("katana.runRealignStage" ,true )->asBool())
, _disableStackedVias (Cfg::getParamBool ("katana.disableStackedVias" ,false )->asBool())
{
_ripupLimits[StrapRipupLimit] = Cfg::getParamInt("katana.strapRipupLimit" ,16)->asInt();
_ripupLimits[LocalRipupLimit] = Cfg::getParamInt("katana.localRipupLimit" , 7)->asInt();
@ -108,6 +109,7 @@ namespace Katana {
, _flags (other._flags)
, _profileEventCosts (other._profileEventCosts)
, _runRealignStage (other._runRealignStage)
, _disableStackedVias (other._disableStackedVias)
{
_ripupLimits[StrapRipupLimit] = other._ripupLimits[StrapRipupLimit];
_ripupLimits[LocalRipupLimit] = other._ripupLimits[LocalRipupLimit];

14
katana/src/NegociateWindow.cpp
View File

@ -181,13 +181,15 @@ namespace {
if (af->isBLOCKAGE(net->getName())) continue;
for( RoutingPad* rp : net->getRoutingPads() ) {
size_t depth = rg->getLayerDepth(rp->getLayer());
if (depth == 0) {
TrackMarker::create( rp, 1 );
//if (isVH) TrackMarker::create( rp, 2 );
size_t depth = rg->getLayerDepth(rp->getLayer());
size_t rlDepth = depth - rg->getFirstRoutingLayer();
if (rlDepth == 0) {
TrackMarker::create( rp, depth+1 );
//if (isVH) TrackMarker::create( rp, depth+2 );
}
if (depth == 1) {
TrackMarker::create( rp, 1 );
if (rlDepth == 1) {
if (depth+1 < rg->getDepth())
TrackMarker::create( rp, depth+1 );
}
}
}

4
katana/src/Session.cpp
View File

@ -401,6 +401,10 @@ namespace Katana {
}
bool Session::_disableStackedVias ()
{ return _getKatanaEngine()->getConfiguration()->disableStackedVias(); }
void Session::_addInsertEvent ( TrackMarker* marker, Track* track )
{
_insertEvents.push_back( Event(marker,track) );

6
katana/src/Track.cpp
View File

@ -543,6 +543,12 @@ namespace Katana {
for ( ; (mbegin < _markers.size())
and (_markers[mbegin]->getSourceU() <= interval.getVMax()) ; mbegin++ ) {
cdebug_log(155,0) << "| @" << DbU::getValueString(_axis) << " " << _markers[mbegin] << endl;
if (Session::disableStackedVias()
and (_markers[mbegin]->getNet() == cost.getNet()) ) {
cost.setInfinite();
cdebug_tabw(155,-1);
return cost;
}
if (_markers[mbegin]->getNet() != cost.getNet()) {
cdebug_log(155,0) << "* Mark: @" << DbU::getValueString(_axis) << " " << _markers[mbegin] << endl;
cost.incTerminals( _markers[mbegin]->getWeight(this) );

3
katana/src/katana/Configuration.h
View File

@ -66,6 +66,7 @@ namespace Katana {
inline bool useStaticBloatProfile () const;
inline bool profileEventCosts () const;
inline bool runRealignStage () const;
inline bool disableStackedVias () const;
// Methods.
inline Anabatic::Configuration* base ();
inline const Anabatic::Configuration* base () const;
@ -121,6 +122,7 @@ namespace Katana {
unsigned int _flags;
bool _profileEventCosts;
bool _runRealignStage;
bool _disableStackedVias;
private:
Configuration ( const Configuration& other );
Configuration& operator= ( const Configuration& );
@ -153,6 +155,7 @@ namespace Katana {
inline bool Configuration::useStaticBloatProfile () const { return _flags & UseStaticBloatProfile; }
inline bool Configuration::profileEventCosts () const { return _profileEventCosts; }
inline bool Configuration::runRealignStage () const { return _runRealignStage; }
inline bool Configuration::disableStackedVias () const { return _disableStackedVias; }
inline void Configuration::setFlags ( unsigned int flags ) { _flags |= flags; }
inline void Configuration::unsetFlags ( unsigned int flags ) { _flags &= ~flags; }
inline void Configuration::setProfileEventCosts ( bool state ) { _profileEventCosts = state; }

5
katana/src/katana/Session.h
View File

@ -66,6 +66,7 @@ namespace Katana {
static Session* get ( const char* message=NULL );
inline static Super* base ();
inline static bool isEmpty ();
inline static bool disableStackedVias ();
static uint32_t getStage ();
inline static KatanaEngine* getKatanaEngine ();
static Configuration* getConfiguration ();
@ -102,6 +103,7 @@ namespace Katana {
void _doRemovalEvents ( bool reschedule=false );
virtual size_t _revalidate ();
bool _isEmpty () const;
bool _disableStackedVias ();
NegociateWindow* _getNegociateWindow ();
inline const std::vector<TrackElement*>&
_getIndirectInvalids ();
@ -212,6 +214,9 @@ namespace Katana {
inline bool Session::isEmpty ()
{ return get("isEmpty()")->_isEmpty(); }
inline bool Session::disableStackedVias ()
{ return get("disableStackedVias()")->_disableStackedVias(); }
inline const std::vector<TrackElement*>& Session::_getIndirectInvalids ()
{ return _indirectInvalids; }