Added LVS results for caravel and scripts for running caravel and

caravan LVS using the new PDK to update the chip GDS.  Moved files
to their proper places.  Still waiting on caravan LVS result file.

scripts/run_caravan_lvs_3.sh

@@ -0,0 +1,158 @@
+#!/bin/bash
+#
+# run_caravan_lvs_3.sh ---
+#
+# Run LVS on caravan.  Read GDS using the recipe developed for open_pdks.
+# Read I/O cells from vendor GDS first so that they get replaced.
+#
+echo ${PDK_ROOT:=/usr/share/pdk} > /dev/null
+echo ${PDK:=sky130A} > /dev/null
+echo ${CARAVEL_ROOT:=/home/tim/gits/caravel} > /dev/null
+echo ${LITEX_ROOT:=/home/tim/gits/caravel_mgmt_soc_litex} > /dev/null
+
+echo "Running LVS on caravan."
+if [ $# -eq 0 ]; then
+   echo "No arguments---running LVS on existing spice if it exists."
+elif [ $1 == "extract" ]; then
+   echo "Forced new extraction."
+   rm -f $CARAVEL_ROOT/spi/lvs/caravan.spice
+else
+   echo "Ending without running LVS."
+   exit 0
+fi
+
+if [ ! -f $CARAVEL_ROOT/spi/lvs/caravan.spice ]; then
+magic -dnull -noconsole -rcfile $PDK_ROOT/$PDK/libs.tech/magic/$PDK.magicrc << EOF
+drc off
+crashbackups stop
+
+# ! This recipe taken from open_pdks/sky130/custom/scripts/gds_import_io.tcl
+gds flatten true
+gds flatglob *_cdns_*
+gds flatglob *sky130_fd_pr__*_example_*
+
+# ! flatten within the 120x2 ESD device
+gds flatglob *sky130_fd_io__gnd2gnd_*
+
+# The following cells have to be flattened for the gpiov2 pad to read in
+# correctly, and produce a layout that can be extracted and generate an
+# LVS clean netlist.
+
+### flatten within the analog mux isolated P region
+gds flatglob *sky130_fd_io__amx*
+gds flatglob *sky130_fd_io__xor*
+gds flatglob *sky130_fd_io__gpiov2_amx*
+gds flatglob *sky130_fd_io__gpiov2_amux*
+
+### flatten within the isolated VSSIO domain
+gds flatglob *sky130_fd_io__feas_com_pupredrvr*
+gds flatglob *sky130_fd_io__com_pupredrvr_strong_slowv2*
+gds flatglob *sky130_fd_io__com_pdpredrvr_pbiasv2*
+gds flatglob *sky130_fd_io__gpiov2_pdpredrvr_strong*
+
+### flatten in opathv2
+gds flatglob *sky130_fd_io__com_pudrvr_strong_slowv2*
+gds flatglob *sky130_fd_io__com_pdpredrvr_strong_slowv2*
+gds flatglob *sky130_fd_io__gpiov2_obpredrvr*
+gds flatglob *sky130_fd_io__hvsbt_*
+
+### flatten in ipath
+gds flatglob *sky130_fd_io__gpiov2_ictl_logic*
+
+### avoid splitting a netlist that passes in contorted ways through the
+### layout hierarchy
+gds flatglob *sky130_fd_io__gpio_pddrvr_strong_slowv2*
+gds flatglob *sky130_fd_io__gpiov2_pddrvr_strong*
+
+gds read $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/gds/sky130_fd_io.gds
+gds read $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/gds/sky130_ef_io.gds
+
+# Now assert that existing views must take precedence
+gds noduplicates true
+
+# GDS is still written in legacy mode
+cif istyle sky130(legacy)
+
+# And read in the full chip (except for cells already read)
+gds read $CARAVEL_ROOT/gds/caravan-signoff.gds.gz
+load caravan
+select top cell
+expand
+extract do local
+extract no all
+extract unique
+extract all
+ext2spice lvs
+ext2spice
+EOF
+rm -f *.ext
+fi
+
+cat > netgenD.tcl << EOF
+puts stdout "Reading netlist caravan.spice"
+set circuit1 [readnet spice $CARAVEL_ROOT/spi/lvs/caravan.spice]
+puts stdout "Reading SPICE netlists of I/O"
+set circuit2 [readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/spice/sky130_fd_io.spice]
+readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/spice/sky130_ef_io.spice \$circuit2
+readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/spice/sky130_ef_io__analog_pad.spice \$circuit2
+readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hd/spice/sky130_fd_sc_hd.spice \$circuit2
+readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hd/spice/sky130_ef_sc_hd__decap_12.spice \$circuit2
+readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hvl/spice/sky130_fd_sc_hvl.spice \$circuit2
+readnet spice $CARAVEL_ROOT/xschem/simple_por.spice \$circuit2
+puts stdout "Reading all gate-level verilog submodules"
+readnet verilog $CARAVEL_ROOT/verilog/rtl/defines.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/constant_block.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/digital_pll.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_control_block.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_defaults_block.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_defaults_block_0403.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_defaults_block_0801.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_defaults_block_1803.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_logic_high.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/gpio_signal_buffering_alt.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/mprj_logic_high.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/mprj2_logic_high.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/mgmt_protect_hv.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/mgmt_protect.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/spare_logic_block.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/caravel_clocking.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/user_id_programming.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/xres_buf.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/buff_flash_clkrst.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/housekeeping.v \$circuit2
+readnet verilog $CARAVEL_ROOT/verilog/gl/chip_io_alt.v \$circuit2
+puts stdout "Reading LiteX gate-level verilog submodules"
+readnet verilog $LITEX_ROOT/verilog/gl/RAM128.v \$circuit2
+readnet verilog $LITEX_ROOT/verilog/gl/RAM256.v \$circuit2
+readnet verilog $LITEX_ROOT/verilog/gl/mgmt_core_wrapper.v \$circuit2
+puts stdout "Reading top gate-level verilog module"
+readnet verilog $CARAVEL_ROOT/verilog/gl/caravan-signoff.v \$circuit2
+
+# Cells in management core wrapper (layout) are prefixed with RL_ or KF_
+set cells1 [cells list -all \$circuit1]
+set cells2 [cells list -all \$circuit2]
+foreach cell \$cells1 {
+    if {[regexp "\\[A-Z\\]\\[A-Z\\]_(.+)" \$cell match cellname]} {
+        if {([lsearch \$cells2 \$cell] < 0) && ([lsearch \$cells2 \$cellname] >= 0) && ([lsearch \$cells1 \$cellname] < 0)} {
+            equate classes "\$circuit1 \$cell" "\$circuit2 \$cellname"
+            puts stdout "Matching pins of \$cell in circuit 1 and \$cellname in circuit 2"
+            equate pins "\$circuit1 \$cell" "\$circuit2 \$cellname"
+        }
+    }
+    # Ignore fill cells in standard cell sets that have two-letter prefixes.
+    if {[regexp {\\[A-Z\\]\\[A-Z\\]_sky130_fd_sc_[^_]+__fill_[[:digit:]]+} \$cell match]} {
+	ignore class "\$circuit1 \$cell"
+    }
+}
+
+# Run LVS
+flatten class "\$circuit2 user_analog_project_wrapper"
+lvs "\$circuit1 caravan" "\$circuit2 caravan" $PDK_ROOT/$PDK/libs.tech/netgen/${PDK}_setup.tcl caravan_3_comp.out -json
+EOF
+
+export NETGEN_COLUMNS=90
+export MAGIC_EXT_USE_GDS=1
+netgen -batch source netgenD.tcl >& caravan_3_lvs.log
+rm netgenD.tcl
+
+exit 0

scripts/run_caravel_lvs_3.sh

@@ -15,13 +15,13 @@ if [ $# -eq 0 ]; then
    echo "No arguments---running LVS on existing spice if it exists."
 elif [ $1 == "extract" ]; then
    echo "Forced new extraction."
-   rm -f caravel.spice
+   rm -f $CARAVEL_ROOT/spi/lvs/caravel.spice
 else
    echo "Ending without running LVS."
    exit 0
 fi
 
-if [ ! -f caravel.spice ]; then
+if [ ! -f $CARAVEL_ROOT/spi/lvs/caravel.spice ]; then
 magic -dnull -noconsole -rcfile $PDK_ROOT/$PDK/libs.tech/magic/$PDK.magicrc << EOF
 drc off
 crashbackups stop
@@ -90,13 +90,14 @@ fi
 
 cat > netgenD.tcl << EOF
 puts stdout "Reading netlist caravel.spice"
-set circuit1 [readnet spice caravel.spice]
+set circuit1 [readnet spice $CARAVEL_ROOT/spi/lvs/caravel.spice]
 puts stdout "Reading SPICE netlists of I/O"
 set circuit2 [readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/spice/sky130_fd_io.spice]
 readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_io/spice/sky130_ef_io.spice \$circuit2
 readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hd/spice/sky130_fd_sc_hd.spice \$circuit2
 readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hd/spice/sky130_ef_sc_hd__decap_12.spice \$circuit2
 readnet spice $PDK_ROOT/$PDK/libs.ref/sky130_fd_sc_hvl/spice/sky130_fd_sc_hvl.spice \$circuit2
+readnet spice $CARAVEL_ROOT/xschem/simple_por.spice \$circuit2
 puts stdout "Reading all gate-level verilog submodules"
 readnet verilog $CARAVEL_ROOT/verilog/rtl/defines.v \$circuit2
 readnet verilog $CARAVEL_ROOT/verilog/gl/constant_block.v \$circuit2
@@ -145,12 +146,12 @@ foreach cell \$cells1 {
 
 # Run LVS
 flatten class "\$circuit2 user_project_wrapper"
-lvs "\$circuit1 caravel" "\$circuit2 caravel" $PDK_ROOT/$PDK/libs.tech/netgen/${PDK}_setup.tcl caravel_3_comp.out
+lvs "\$circuit1 caravel" "\$circuit2 caravel" $PDK_ROOT/$PDK/libs.tech/netgen/${PDK}_setup.tcl caravel_3_comp.out -json
 EOF
 
 export NETGEN_COLUMNS=90
 export MAGIC_EXT_USE_GDS=1
-netgen -batch source netgenD.tcl
-# rm netgenD.tcl
+netgen -batch source netgenD.tcl >& caravel_3_lvs.log
+rm netgenD.tcl
 
 exit 0

signoff/caravel/standalone_pvr/lvs_summary.rpt

@@ -1,7 +0,0 @@
-LVS reports:
-    net count difference = 32
-    device count difference = 357
-    unmatched nets = 373
-    unmatched devices = 128
-    unmatched pins = 41
-    property failures = 0

xschem/xschemrc

@@ -31,15 +31,10 @@ set XSCHEM_LIBRARY_PATH {}
 append XSCHEM_LIBRARY_PATH ${XSCHEM_SHAREDIR}/xschem_library
 #### include skywater libraries. Here i use [pwd]. This works if i start xschem from here.
 append XSCHEM_LIBRARY_PATH :$env(PWD)
-append XSCHEM_LIBRARY_PATH :/usr/share/pdk/$env(PDK)/libs.tech/xschem
-# append XSCHEM_LIBRARY_PATH :/mnt/sda7/home/schippes/pdks/$env(PDK)/libs.tech/xschem
+# append XSCHEM_LIBRARY_PATH :/mnt/sda7/home/schippes/pdks/sky130A/libs.tech/xschem
 #### add ~/.xschem/xschem_library (USER_CONF_DIR is normally ~/.xschem)
 append XSCHEM_LIBRARY_PATH :$USER_CONF_DIR/xschem_library 
 
-if {[catch {set PDKPATH $env(PDKPATH)}]} {
-    set PDKPATH "/usr/local/share/pdk/$env(PDK)"
-}
-
 ###########################################################################
 #### SET CUSTOM COLORS FOR XSCHEM LIBRARIES MATCHING CERTAIN PATTERNS
 ###########################################################################
@@ -66,7 +61,22 @@ set XSCHEM_START_WINDOW {sky130_tests/top.sch}
 ###########################################################################
 #### If unset $USER_CONF_DIR/simulations is assumed (normally ~/.xschem/simulations) 
 # set netlist_dir $env(HOME)/.xschem/simulations
-set netlist_dir .
+
+###########################################################################
+#### NETLIST AND HIERARCHICAL PRINT EXCLUDE PATTERNS
+###########################################################################
+#### xschem_libs is a list of patterns of cells to exclude from netlisting.
+#### Matching is done as regular expression on full cell path
+#### Example:
+#### set xschem_libs { {/cmoslib/} {/analoglib/.*pass} buffer }
+#### in this case all schematic cells of directory cmoslib and cells containing
+#### /analoglib/...pass and buffer will be excluded from netlisting
+#### default value: empty
+# set xschem_libs {}
+#### noprint_libs is a list with same rules as for xschem_libs. This
+#### variable controls hierarchical print
+#### default value: empty
+# set noprint_libs {}
 
 ###########################################################################
 #### CHANGE DEFAULT [] WITH SOME OTHER CHARACTERS FOR BUSSED SIGNALS 
@@ -84,7 +94,6 @@ set netlist_dir .
 # set netlist_type spice
 
 #### Some netlisting options (these are the defaults)
-# set hspice_netlist 1
 # set verilog_2001 1
 
 #### to use a fixed line with set change_lw to 0 and set some value to line_width
@@ -113,6 +122,10 @@ set netlist_dir .
 #### default: 0
 # set persistent_command 1
 
+#### if set to 1 a wire is inserted when separating components that are
+#### connected by pins. Default: not enabled (0)
+# set connect_by_kissing 1
+
 #### if set to 1 automatically join/trim wires while editing
 #### this may slow down on rally big designs. Can be disabled via menu 
 #### default: 0
@@ -142,6 +155,17 @@ set netlist_dir .
 # set to_pdf ps2pdf
 set to_pdf {ps2pdf -dAutoRotatePages=/None}
 
+###########################################################################
+#### UNDO: SAVE ON DISK OR KEEP IN MEMORY
+###########################################################################
+#### Alloved: 'disk'or 'memory'. 
+#### Saving undo on disk is safer but slower on extremely big schematics.
+#### In most cases you won't notice any delay. Undo on disk allows previous
+#### state recovery in case of crashes. In-memory undo is extremely fast
+#### but should a crash occur everything is lost.
+#### It is highly recommended to keep undo on disk.
+#### Default: disk
+# set undo_type disk
 
 ###########################################################################
 #### CUSTOM GRID / SNAP VALUE SETTINGS
@@ -231,14 +255,6 @@ set to_pdf {ps2pdf -dAutoRotatePages=/None}
 #### default: 0 (can be enabled by menu)
 # set show_infowindow 0
 
-###########################################################################
-#### CONFIGURE COMPUTER FARM JOB REDIRECTORS FOR SIMULATIONS
-###########################################################################
-#### RTDA NC
-# set computerfarm {nc run -Il}
-#### LSF BSUB
-# set computerfarm {bsub -Is}
-
 ###########################################################################
 #### TCP CONNECTION WITH GAW
 ###########################################################################
@@ -258,34 +274,102 @@ set to_pdf {ps2pdf -dAutoRotatePages=/None}
 #### set bespice wave listening port; default: not enabled
 set bespice_listen_port 2022
 
-
-
-###########################################################################
-#### UTILE SPICE STIMULI DESCRIPTION LANGUAGE AND TRANSLATOR
-###########################################################################
-#### default paths are set as shown here: 
-# set utile_gui_path ${XSCHEM_SHAREDIR}/utile/utile3
-# set utile_cmd_path ${XSCHEM_SHAREDIR}/utile/utile
-
 ###########################################################################
 #### TCL FILES TO LOAD AT STARTUP
 ###########################################################################
 #### list of tcl files to preload.
 # lappend tcl_files ${XSCHEM_SHAREDIR}/change_index.tcl
 lappend tcl_files ${XSCHEM_SHAREDIR}/ngspice_backannotate.tcl
-lappend tcl_files ${PDKPATH}/libs.tech/xschem/scripts/sky130_models.tcl
+
 ###########################################################################
 #### XSCHEM TOOLBAR
 ###########################################################################
 #### default: not enabled.
-# set toolbar_visible 1
+set toolbar_visible 1
 # set toolbar_horiz   1
 
+###########################################################################
+#### TABBED WINDOWS
+###########################################################################
+# default: not enabled. Interface can be changed runtime if only one window 
+# or tab is open.
+set tabbed_interface 1
+
+###########################################################################
+#### CASE INSENSITIVE SYMBOL LOOKUP
+###########################################################################
+## this option might be useful on filesystems that are case insensitive and
+## on designs ported from windows where case of file names does not matter.
+## if this option is set symbol lookup will be case insensitive,
+## so a symbol reference 'AMPLI.SYM' will match with 'ampli.sym' or
+## Amply.sym on disk. File system must be case insensitive for this to work,
+## like FAT32 or NTFS.
+## Do not set this option if you don't know what you are doing.
+## Default: not enabled (0)
+# set case_insensitive 1
+
+###########################################################################
+#### HIDE GRAPHS IF NO SPICE DATA LOADED
+###########################################################################
+## if enabled graphs will be hidden if no data is loaded.
+## default: not enabled (0)
+# set hide_empty_graphs 0
+
+###########################################################################
+#### SHOW HIDDEN TEXTS
+###########################################################################
+## This option shows text objects even if they have attribute 'hide=true' set
+## default: 0 (not set) 
+# set show_hidden_texts 1
+
+###########################################################################
+#### LIVE BACKANNOTATION OF DATA AT CURSOR 2 (B) POSITION
+###########################################################################
+## if enabled will backannotate values in schematic at cursor 'b' position
+## in graph. Default: not enabled (0)
+# set live_cursor2_backannotate 1
+
 ###########################################################################
 #### SKYWATER PDK SPECIFIC VARIABLES
 ###########################################################################
 
-## (spice patched) skywater-pdk install
-## opencircuitdesign pdks install. You need to change these to point to your open_pdks installation
-set SKYWATER_MODELS $env(PDKPATH)/libs.tech/ngspice
-set SKYWATER_STDCELLS $env(PDKPATH)/libs.ref/sky130_fd_sc_hd/spice
+## check if env var PDK_ROOT exists, and use it for building open_pdks paths
+if { [info exists env(PDK_ROOT)] && $env(PDK_ROOT) ne {} } {
+  ## found variable, set tcl PDK_ROOT var
+  if {![file isdir $env(PDK_ROOT)]} {
+    puts stderr "Warning: PDK_ROOT environment variable is set but path not found on the system."
+  }
+  set PDK_ROOT $env(PDK_ROOT)
+} else {
+  ## not existing or empty. 
+  puts stderr "Warning: PDK_ROOT env. var. not found or empty, trying to find an open_pdks install"
+  if {[file isdir /usr/share/pdk]} {set PDK_ROOT /usr/share/pdk
+  } elseif {[file isdir /usr/local/share/pdk]} {set PDK_ROOT /usr/local/share/pdk
+  } elseif {[file isdir $env(HOME)/share/pdk]} {set PDK_ROOT $env(HOME)/share/pdk
+  } else {
+    puts stderr {No open_pdks installation found, set PDK_ROOT env. var. and restart xschem}
+  }
+}
+
+if {[info exists PDK_ROOT]} {
+  ## get process variant
+  if {[info exists env(PDK)]} {
+    set PDK $env(PDK)
+  } else {
+    set PDK sky130A
+  }
+  set SKYWATER_MODELS ${PDK_ROOT}/${PDK}/libs.tech/ngspice
+  set SKYWATER_STDCELLS ${PDK_ROOT}/${PDK}/libs.ref/sky130_fd_sc_hd/spice
+  puts stderr "open_pdks installation: using $PDK_ROOT"
+  puts stderr "SKYWATER_MODELS: $SKYWATER_MODELS"
+  puts stderr "SKYWATER_STDCELLS: $SKYWATER_STDCELLS"
+}
+
+
+# open_pdks specific:
+# Set variables after ${PDK_ROOT} is known
+# This overrides some of the variables set above.
+
+set XSCHEM_START_WINDOW ${PDK_ROOT}/${PDK}/libs.tech/xschem/sky130_tests/top.sch
+append XSCHEM_LIBRARY_PATH :${PDK_ROOT}/${PDK}/libs.tech/xschem
+