Commit Graph

3025 Commits

Author SHA1 Message Date
Jean-Paul Chaput 49bcdb3195 One more remains of the previous routing configuration. 2022-11-26 15:05:56 +01:00
Jean-Paul Chaput c131e7a948 Clean parameters for routing topologies. Improved 2RL- support.
Previously, the relevant NetBuilder and routing strategies where
directly guessed from the RoutingGauge traits. This is no longer
doable as the combinations increases. Now to configure both the
global and detailed router we need three "parameters" :

1. The routing gauge itself (tells which layers are in which
   directions) and how to make the VIAs.
2. The NetBuilder to use, they are identified by strings.
   Currently we support:
   * "HV,3RL+", for all SxLib derived standard cells.
   * "VH,2RL", for hybrid routing (over the cell, but terminals
     are also in the first RL).
   * "2RL-", for strict channel routing.
   * "VH,3RL+", an attempt for FreePDK 45, not optimized enough
     to be considered as usable.
3. The routing style, mostly affect the way the GCell grid will be
   built.
   * VH      : first RL is V.
   * HV      : first RL is H.
   * OTH     : Run in full over-the-cell mode (needs at least 3RL).
   * Channel : Run in *strict* channel routing mode (no routing over
               the standard cells).
   * Hybrid  : Create channels, but can use H tracks over the
               standard cells.

Thoses three parameters are partly overlapping and must be sets in
a consistent manner, otherwise strange results may occurs.

* New: CRL::RoutingGauge::getFirstRoutingGauge(), to get the lowest
    layer available for routing (not a PinOnly, not a PowerSupply).
* Change: In CRL::RoutingGauge::isHV() and isVH(), were previously
    always returning false when the gauge was 2RL only. Now, check
    on the first usable RL.
* Bug: In cumulus/plugins.block.configuration._loadRoutingGauge(),
    there was a bad computation of the deep RLs when the top layer
    was not defined. Occured for 2RL gauges only.
* Bug: In Anabatic::RpsInRow::slacken() (LayerAssign), forgotten curly braces
    in the test to skip METAL2 terminals.
* Change: In Etestian::BloatChannel::getDx(), adjust the bloating
    policy to converge on Arlet6502. Always ensure that there is
    a 50% ratio between terminal used V-tracks and free ones.
      If there is more than 80% of terminals, add one more track.
* Bug: In AnabaticEngine & KatanaEngine, KatanaEngine is a derived
    class of AnabaticEngine.  They uses Anabatic::Configuration
    and Katana::Configuration that also derives from each other.
    I though I had made one configuration attribute in the base
    class that was using the right Configuration. But no. I did
    have two configurations attributes, one in AnabaticEngine and
    one in KatanaEngine, the later "shadowing" the former. As a
    results, parameters modified in AnabaticEngine, *after* the
    initial creation of the tool *where never seen* at Katana
    level (due to it's own duplicate). What a mess.
      Now there is only one attribute in the *base* class Anabatic,
    which is created through a new virtual function _createConfiguration()
    called in _postCreate() which allocate the right Configuration
    according to the dynamic type of the tool (KatanaEngine).
      In KatanaEngine, access the configuration through the
    attribute (_configuration) and not the accessor (getConfiguration()).
* Bug: In KatanaEngine, no longer directly use the _configuration attribute
    (which is not accessible anyway) but the getConfiguration() accessor.
    The accessor perform a static_cast from the Super::getConfiguration()
    into Katana::Configuration.
      Complete cleanup of the various configuration accessors.
* New: AnabaticEngine::setupNetBuilder(), perform an early check
    of the requested NetBuilderStyle. The NetBuilderStyle is just a
    string that will be matched against the (hard-coded) supported
    NetBuilders. Then check the topological characteristics against
    the capabilities of the gauge (HV, VH and so on).
      Still a bit too hard-coded for now.
      This function has been split from AnabaticEngine::_loadGrByNet().
* Change: AnabaticEngine::isChannelStyle() renamed from isChannelMode().
* New: In Anabatic::Configuration, two new attributes to select the
    topology and routing style:
      - _netBuilderStyle to explicitely select the NetBuilder to use.
        It's a string, which is provided by each NetBuilder.
      - _routingStyle to define how the overall routing will work.
        It's a set of flags (StyleFlags):
	* VH      : first RL is V.
	* HV      : first RL is H.
	* OTH     : Run in full over-the-cell mode (needs at least 3RL).
	* Channel : Run in *strict* channel routing mode (no routing over
	            the standard cells).
	* Hybrid  : Create channels, but can use H tracks over the
	            standard cells.
* New: In anabatic/Constants, add StyleFlags to define how the router
    should operate (see above).
* Bug: In Anabatic::GCell, in CTOR, no reason to set up the HChannelGCell flag.
* Bug: In Anabatic::GCell::updateDensity(), when computing layers non contiguous
    saturation, do not systematically skip RL 0, but only if it's PinOnly.
* Change: In Anabatic::NetBuilder, rename isTwoMetal by isStrictChannel.
* Change: In Anabatic::NetBuilderHV, rename doRp_AccessNorthPin() in
    doRp_AccessNorthSouthPin(). More accurate.
* Bug: In NetBuilderHV::_do_1G_xM1_1PinM2(), the wires to connect the M1
    terminals where created *twice*. Uterly stupid, there where placed in
    overlap by the router!
* New: In AnabaticEngine, new accessors to the NetBuilderStyle and
    RoutingStyle, proxies towards Configuration.
* Bug: In Manipulator::relax(), if there are two doglegs to be done, but
    they are in the same GCell, only do one (the conflicting interval)
    is short.
* Change: In Katana::Session, rename isChannelMode() into isChannelStyle().
* Change: In TrackSegment::isUnbreakable() and isStrap(), return false
    when the base segment is a *weak global* (aligned with a global one).
* Change: In Katana::Row::createChannel(), correctly distinguish between
    *strict channel* style and *hybrid* style. Tag the GCells as std cells
    row or channels only in the former case.
2022-11-26 13:07:12 +01:00
Jean-Paul Chaput e262c7bd1a Merge branch 'fix-duplicate-case-filenames' into 'devel'
Remove old generated files that clash on case-insensitive file systems

See merge request vlsi-eda/coriolis!15
2022-11-15 23:06:13 +00:00
Robert Taylor 68a3695780 Remove old generated files that clash on case-insensitive file systems 2022-11-15 11:51:43 +00:00
Jean-Paul Chaput 2b870fc609 Remove obsolete dependency towards LibXml2 in CMakeLists.txt. 2022-11-07 17:36:49 +01:00
Jean-Paul Chaput ecda00e154 Adjustments in AutoSegment::canReduce() and TrackSegment::canRealign().
* Change: In AutoSegment::canReduce(), allow reduction, when in channel
    mode, for bottom connected jumpers at depth 1. Forbidden otherwise
    as it may cause problems with the terminals (in OTC).
* Change: In TrackSegment::canRealign(), allow realignement of reduced
    segments. What really needs to be checked is that it do not have
    perpandiculars in reduced state.
2022-11-03 10:36:44 +01:00
Jean-Paul Chaput 15412317ec Add a second repair stage after the realing stage of the router.
* New: In Katana::NegotiateWindow::_negociate(), if the realign stage is
    enabled, perform a second stage of repair after it. To do this we
    need to reverse the state of events marked as FailedRepair to Repair.
      We isolate the repair stage in a new dedicated function,
    NegociateWindow::_negociateRepair(). Maybe should do the same for
    each other negociate stage.
2022-11-03 00:21:51 +01:00
Jean-Paul Chaput 8c182672dd Cleanly get rid of PyQt dependency.
* New: Hurricane::ErrorWidget, new widget exported to Python to replace
    helpers.io.ErrorWidget.
* New: Hurricane::AboutWindow, new window exported to Python to replace
    cumulus/plugins.aboutwindow.AboutWidget.
2022-11-02 00:21:00 +01:00
Jean-Paul Chaput 13795bec48 Add Environement attribute (pattern) to match the FF names. 2022-10-31 16:31:30 +01:00
Jean-Paul Chaput a0880da706 Issue a warning when the blockage net (for OBS) do not exists. 2022-10-31 16:29:07 +01:00
Jean-Paul Chaput 1253eeeef4 Allow the user to choose the name of the SRAM. Placement fix.
* Change: In cumulus/plugins.sram.sram_256x32, add a new parameter to
    __init__() so the user can choose the model name of the generated
    SRAM.
* Change: In cumulus/plugins.sram.sram.BaseSRAM.placeInstance(),
    placement status must be FIXED instead of PLACED so the placer do
    not "unplace" them.
      The Cell.updatePlacedFlag() method must also be called once
    the model if fully built.
2022-10-30 10:36:52 +01:00
Jean-Paul Chaput 11bae679f1 Export the Cell::updatePlacedFlag() to the Python interface. 2022-10-30 10:10:23 +01:00
Jean-Paul Chaput 3613ce0b5d Typo in LefImport, the conf variable name is "lefImport.unmatchedlayers". 2022-10-30 10:08:43 +01:00
Jean-Paul Chaput 47b26476b7 Fixed bad perpand interval computation in AutoSegment::getTopologicalinfos(). 2022-10-27 19:47:44 +02:00
Jean-Paul Chaput dbfcfae1e8 Update of the DefExport (work in progress).
* New: In CRL::DefExport, checkStatus() has a second argument to display
    a more comprehensive error message.
      Applied throughout all the DEF callbacks.
* Bug: In CRL::DefExport, the UNIT statement and associated toDefUnits()
    functions where wrong. Now always use a UNITS of 1000 in microns.
    Then toDefUnits() converts DbU into microns and multiply by 1000.
* Change: In CRL::defExport::_netCbk(), enable the net name renaming
    only when the ProtectNetNames flag is set.
* New: In CRL::PyDefExport, also export the flag values to Python.
2022-10-27 19:47:17 +02:00
Jean-Paul Chaput 775b6bf1fc Better management of discrepencies bewteen LEF & techno layers.
* Change: In CRL::LefImport::LefParser, layers defined in the LEF file
    are matched *in order* to the ones from the technology *in order*
    (not by name matching). But if there is a mismatch, that is more
    layers in the techno than in LEF, we got a shift. Now we can tell
    the parser to ignore a set of layers by setting up the configuration
    variable:
       LefImport.unmatchedLayers = 'DIFFP,POLY2,SMURF'
2022-10-27 19:46:29 +02:00
Jean-Paul Chaput 81920c622e Stricter layer management in the GDS parser.
* In CRL::GdsStream::_staticInit(), all the layers where added to the
    translation table, whether or not they where configured for the
    GDS stream. So the non GDS configured layers got a GDS layer
    id of 0 and were using this case. Either overwriting the legit
    layer or creating a new one while it should have been invalid.
      Now we check for the hasGds() predicate of the layers.
* In CRL::GdsStream, add a new option to tell that, layer id 0,
    if undefined, may be used as the definition of the boudary of
    the cell (abutment box).
* In CRL::PyGds, now also export the flags to the Python interface.
2022-10-27 19:45:20 +02:00
Jean-Paul Chaput 5a07033172 In BasicLayer, change GDS number types from "unsigned int" to "uint32_t". 2022-10-27 19:43:19 +02:00
Jean-Paul Chaput 7c85835c8f Added partial support for Pad (component) in RoutinPad.
* New: In Hurricane::RoutingPad, added support if the supporting component
    is a Pad. The source/target positions are computed according to the
    most likely direction.
      Change the _getEntityAsComponent() function into an inline template
    _getEntityAs<T>().
      Change the flags from an enum to static const uint32_t.
* Change: In Anabatic::Configuration, use _getEntityAs<T>.
* Change: In Anabatic::Dijkstra, use _getEntityAs<T>.
* Change: In Anabatic::NetBuilder, use _getEntityAs<T>.
* Change: In Katabatic::LoadGrByNet, use _getEntityAs<T>.
* Change: In Katana::ProtectRoutingPads, use _getEntityAs<T>.
* Change: In Bora::AnalogDistance, use _getEntityAs<T>.
* Change: In Etesian::EtesianEngine, use _getEntityAs<T>.
2022-10-27 19:42:13 +02:00
Jean-Paul Chaput 118b28b5a7 Prevent the absence of PyQt5 to stop lauching cgt.
* Change: In CRL/helpers.io, the ErrorWidget requires PyQt5 to execute but
    is not mandatory to run Coriolis/cgt. In order to be more portable,
    if it is not availble just evert to text display on the console.
      This widget will be directly supplied by Coriolis in the future
    completely removing the need for PyQt.
*Change: In cumulus/plugins/aboutwindow, same as above.
2022-10-26 16:37:16 +02:00
Jean-Paul Chaput 60c8bfe75e Remove reference to Foehn in SRAM generator (unpublished tool yet). 2022-10-26 16:32:00 +02:00
Jean-Paul Chaput 288d1c70b9 New bloat profile for channel routing (named "channel"). 2022-10-23 17:44:45 +02:00
Jean-Paul Chaput bba364eecc Fix: some AutoSegments where wrongly flagged as reduced.
* Bug: In Anabatic::AutoSegment::canReduce(), when looking at a fixed
    segment we were unconditionally flagging it as reduced if it was
    a "jumper", regardless of it's length.
      It was wrong, now also check for a length below the P-Pitch.
      This was introduced when implementing the channel routing.
2022-10-23 15:23:22 +02:00
Jean-Paul Chaput a6f61c1044 Update the channel routing feature to integrate with the OTC P&R.
* Update: In CRL/node600/phenitec/kite.py, update the routing gauge to
    the new format. So now we can use again SxLib-2M (channel routing
    SxLib for two metal technologies).
* Change: In CRL::BlifParser, if a master cell is not found in the
    AllianceFramework, then try in the Blif supplied libraries.
    This is used to load the zero, one and tie cells.
      Add a Blif::getCell() static function to look into the Blif
    supplied libraries.
* Change: In CRL::LefImport, sometimes there can be discrepencies between
    the LEF ROUTING layers and the Coriolis routing gauge. Now ignore
    routing layers that are *not* presents in the Coriolis gauge.

* Change: In AnabaticEngine, moved routingMode attribute from KatanaEngine,
    as some setup operations needs it.
* Change: In AutoSegment::canReduce(), allow fixed segments to be reduced
    if they are "jumpers" (turn+turn and top+top or bot+bot).
      This case arise on the edge of routing channels for fixed wires
    to connect terminals.
* Change: In AutoSegment::getTopologicalinfos(), compute differently the
    (leftBound,rightBound) interval when in channel mode.
       In over-the-cell mode, this interval is the one of the whole
    GCells under the wire. In channel mode, for fixed wires (that is,
    verticals connecteds to cells) this interval is reduced to half
    the GCell height, on the connected side of said channel.
      This allows Manipulator::_insertToTrack() to issue disantangling
    requests (push left/push right) for fixed segments that are face
    to face in the channel.
* Change: In Anabatic::Configuration CTOR, allow the cellGauge to have a
    different name from the routingGauge. Now if the cell gauge that
    should match the routing gauge is not found, fallback to the
    name set in "anabatic.cellGauge" parameter.
      Case occur when we try to match with CORE sites from LEF files.
* Change: In Etesian::Configuration CTOR, same change as in the
    Anabatic configuration.
* Change: In Anabatic::GCell::updateDensity(), never set the GoStraight
    flag in channel mode. This flag makes sense when there is at least
    4 routing layers (so we have 2 contiguous free of blockages).
* Bug: In Anabatic::Session::_getNearestGridpoint(), sometimes the nearest on
    grid point is outside the constraint box. Now force the point
    to remains inside constraints even if offgrid.

* Change: In Katana::DataNegociate::update(), perpandiculars that are
    either reduced or in non-preferred routing direction should not
    trigger a bug message.
* Change: In KatanaEngine::_check(), do not check for fixed, horizontal
    non-prefs AutoSegments in channel mode (avoid false bug display).
* Bug: In Manipulator::_forceToTrack(), slighty shrink (-1) the interval
    to free. The intersection function of intervals returns true when
    the two intervals *exactly* touches (1.vMax == 2.vMin). But in
    this specific case, they are not *overlapping* and no action
    should be taken...
* Bug: In Manipulator::_insertInTrack(), do not reject the track when
    we are overlapping a fixed vertical segment in channel mode.
    (Hmm, maybe already corrected by the previous one).
* Change: In Katana::NegociateOverlapCost(), in channel mode, do
    not put two overlaping vertical fixed segments into infinite cost.
    This happens when two cell connected verticals are face to face in
    a channel. We want them negociated the track (by shrinking their
    length) instead of excluding it right away.
* Change: In NegociateWindow::createTrackSegment(), in channel mode,
    do not attempt to create a track segment over a fixed and reduced
    AutoSegment.
      Do not attempt to put a non-preferred AutoSegment on a Track
    either.
* Bug: In RoutingEvent::revalidate(), the number of availables tracks
    was badly computed when in the pure constraint case, when there
    was only one it was reporting zero.
* Change: In TrackElements::TrackElements_Perpandicular::Locator,
    do not issue a bug when an non-pref or reduced AutoSegment do not
    have an associated TrackElement.
* Change: In TrackSegmentCost::update(), do not issue a bug when a
    perpandicular is reduded or non-pref and do not have a TrackElement.
2022-10-22 16:39:22 +02:00
Jean-Paul Chaput 9594476ab6 Improved SRAM output multiplexer, using NAND/NOR.
* New: In cumulus/plugins/sram_256x32.py, build the output mux using a
    NAND2/NOR2 binary tree instead of mux2/mux3. Use more, but much
    smaller cells. The reduction of wirelength (from Yosys) goes
    from 4% to 15% for the non-folded variant.
      Uses a specially placed tree to minimize wire length.
* New: In cumulus/plugins/sram.py, extend StdCellConf to convert names
    accross library flavors (FlexLib_TSMC_C180, FlexLib_Sky130 and
    generic SxLib).
2022-10-17 17:18:49 +02:00
Jean-Paul Chaput d294a770c4 Added Standard Cells based SRAM generator (Python).
The generator as been build in two parts:
1. A genereric sram.BaseSRAM class to provides support for all kind of
   SRAM (grouping column tree, headers, folding).
2. The specific SRAM_256x32 (256 words of 32 bits) suited for the
   ethmac.
The sram has been simulated with genpat+asimut and gives identical
results to the Yosys one (at gate level). No timing though.
2022-10-14 10:12:03 +02:00
Jean-Paul Chaput df1ba66c09 Fix a crash in PowerRails when a terminal is not connected.
* Bug: In Katana::GlobalNetTable::getRootNet(), when tracking up the
    net through the plug (to look if it's connected to a top level
    clock), we may encounter an *unconnected* plug.
      We where not checking that case, and went crashing. Now issue
    a warning and return NULL.
      This indicates that, up until now, we didn't encounter any
    unconnected Plug in our netlists. This did show up due to a
    building error in the SRAM Standard Cell generator.
2022-10-14 10:10:43 +02:00
Jean-Paul Chaput 82cd53b107 Display the length units in KatanaEngine::printCompletion() (unambiguous). 2022-10-13 10:54:50 +02:00
Jean-Paul Chaput 757284896c Remove extra debug messages in PythonAttributes. 2022-10-13 10:54:11 +02:00
Jean-Paul Chaput 7d31d6c457 Merge branch 'devel' of gitlab.lip6.fr:vlsi-eda/coriolis into devel 2022-09-22 10:35:21 +02:00
Jean-Paul Chaput 35f73ecec3 Added plugin for placing Yosys generated SRAM (failed experiment). 2022-09-21 17:48:26 +02:00
Jean-Paul Chaput 8980a01dae Added new tool "foehn" to create/manipulate DAG.
Build DAG then create an ordered list of gates from it. DAG starting
points could be Net or Instances (we take the output of the Instance).
Multiple DAG can be created, but once an Instance is part of a DAG,
it connot be part of another and is conidered as "reached" by all
subsequent DAG run. The ordered list build from a DAG contains both
Net and Instances.
   A new property has DagProperty, accessible through DagExtension
has been created to store relevant information of the DAG on each
Instance or Net (work in progress).
2022-09-21 17:46:48 +02:00
Jean-Paul Chaput 3f1148b105 Added support to map vectors of Entity into Python lists of PyEntity. 2022-09-21 17:30:30 +02:00
HoangAnhP 5b88929d23 Merge branch 'devel' of gitlab.lip6.fr:vlsi-eda/coriolis into devel 2022-08-23 14:36:25 +02:00
HoangAnhP 93fbc74f8d Seabreeze : nothing new, just some typos fixed 2022-08-23 14:35:55 +02:00
Jean-Paul Chaput 16428ffaa9 Updated documentation Python/Tutorial to catch up with API improvements. 2022-08-15 13:49:35 +02:00
Jean-Paul Chaput 440547a1c5 PyAttributesHolder, again (2). 2022-08-14 18:35:21 +02:00
Jean-Paul Chaput d0d0e3aa3d Fixing the PyAttributesHolder type definition, again. 2022-08-14 18:28:34 +02:00
Jean-Paul Chaput bdd78ce44a Right preprocess condition in PythonAttribues for old GCC 2022-08-14 18:14:35 +02:00
Jean-Paul Chaput c0b4a73f9e Alternate PyTypeObject inititalization in PythonAttributes for old GCC. 2022-08-14 13:05:35 +02:00
Jean-Paul Chaput 56aa978a9b Added management of Python attributes on DBo.
* New: Isobar::PyAttributesHolder, a PyObject with only a dictionary
    to hold the attributes associated to a DBo.
* New: Isobar::PyHolderProperty, the Property that encapsulate
    PyAttributesholder.
* New: Isobar::PythonAttributes, the extension to simplify the
    management of the PyAttributesholder.
* Change: In PyEntity, now use a dedicated tp_getattro and tp_setattro
    to delegate the Python attribute access towars the PyAttributesholder.
* New: In hurricane/doc & documentation, update docs regarding Python
    attributes managment.
2022-08-13 17:46:47 +02:00
Jean-Paul Chaput fefa47b2dc Remove submodule error that was painful under emacs. 2022-08-05 15:36:10 +02:00
HoangAnhP 5667797ae6 Seabreeze : More than 1 Contact in 1 RoutingPad 2022-08-01 10:58:59 +02:00
HoangAnhP af20ef092c Seabreeze : new case to be considered 2022-07-22 19:13:14 +02:00
HoangAnhP 2d181a592f Seabreeze : Finally fixed conflict 2022-07-22 13:25:17 +02:00
HoangAnhP 1e978d5149 Revert "Seabreeze : fixing conflict"
This reverts commit 0e9556676a.
2022-07-22 13:12:57 +02:00
HoangAnhP c8a15a3129 Revert "Revert "Seabreeze : fixing conflict""
This reverts commit 1016ae54a6.
2022-07-22 13:12:55 +02:00
HoangAnhP 1016ae54a6 Revert "Seabreeze : fixing conflict"
This reverts commit 0e9556676a.
2022-07-22 13:11:04 +02:00
HoangAnhP 0e9556676a Seabreeze : fixing conflict 2022-07-22 13:04:14 +02:00
HoangAnhP d16ec20966 Merge branch 'devel' of gitlab.lip6.fr:vlsi-eda/coriolis into devel
Conflicts:
	Seabreeze/src/Delay.cpp
2022-07-22 12:50:41 +02:00