update openlane configuration for `caravan_core`

openlane/caravan_core/config.tcl

@@ -172,7 +172,7 @@ set ::env(CTS_CLK_BUFFER_LIST) {sky130_fd_sc_hd__clkbuf_8 sky130_fd_sc_hd__clkbu
 set ::env(CTS_CLK_MAX_WIRE_LENGTH) 1000
 
 ##PLACEMENT
-set ::env(PL_ROUTABILITY_DRIVEN) 1
+set ::env(PL_ROUTABILITY_DRIVEN) 0
 set ::env(PL_TIME_DRIVEN) 1
 set ::env(PL_WIRELENGTH_COEF) 0.01
 set ::env(PL_TARGET_DENSITY) 0.24
@@ -198,7 +198,7 @@ set ::env(GRT_ADJUSTMENT) 0.08
 set ::env(GRT_ESTIMATE_PARASITICS) 1
 
 set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) 1
-set ::env(GLB_RESIZER_HOLD_SLACK_MARGIN) 0.08
+set ::env(GLB_RESIZER_HOLD_SLACK_MARGIN) 0.12
 set ::env(GLB_RESIZER_SETUP_SLACK_MARGIN) 1
 set ::env(GLB_RESIZER_MAX_WIRE_LENGTH) 600
 set ::env(GLB_RESIZER_MAX_SLEW_MARGIN) 30

openlane/caravan_core/floorplan_configuration/macro_placement.cfg

@@ -2,9 +2,9 @@ user_id_value 2962.655 129.19 N
 soc.core.RAM256.BANK128\[0\].RAM128 90.09 175 N
 soc.core.RAM256.BANK128\[1\].RAM128 581.97 175 FN
 soc.core.RAM128 1800 125 FN
-mgmt_buffers.mprj_logic_high_inst 1190.94 880 N
-mgmt_buffers.powergood_check 1794 880 N
-mgmt_buffers.mprj2_logic_high_inst 823 880 FN
+mgmt_buffers.mprj_logic_high_inst 1190.94 905 N
+mgmt_buffers.powergood_check 1794 905 N
+mgmt_buffers.mprj2_logic_high_inst 823 905 FN
 por 1063.15 135 MX
 mprj 115.04 1183.09 N
 housekeeping_alt 2650 190 N

openlane/caravan_core/interactive-netlist.tcl

@@ -0,0 +1,145 @@
+package require openlane
+variable SCRIPT_DIR [file dirname [file normalize [info script]]]
+# prep -ignore_mismatches -design $SCRIPT_DIR -tag techlef_for_antenna -overwrite -verbose 0
+prep -ignore_mismatches -design $SCRIPT_DIR -tag $::env(OPENLANE_RUN_TAG) -overwrite -verbose 0
+
+set save_path $::env(CARAVEL_ROOT)
+
+################   Netlist   ################
+set_netlist $::env(DESIGN_DIR)/synth_configuration/caravan_core.v
+set ::env(CURRENT_SDC) $::env(DESIGN_DIR)/sdc_files/base.sdc
+
+################   Floorplan   ################
+init_floorplan
+apply_def_template
+
+# Placing the macros in the core area and marking them fixed
+file copy -force $::env(MACRO_PLACEMENT_CFG) $::env(placement_tmpfiles)/macro_placement.cfg
+manual_macro_placement -f
+
+# Tap/Decap insertion
+tap_decap_or
+
+set ::env(GRT_OBS) "\
+    pwell 0 4195 3165 4767, \
+    nwell 0 4195 3165 4767, \
+    li1 0 4195 3165 4767, \
+    met1 0 4195 3165 4767, \
+    met2 0 4195 3165 4767, \
+    met3 0 4195 3165 4767, \
+    met4 0 4195 3165 4767, \
+    met5 0 4195 3165 4767, \
+    met4 990 0 1075 45, \
+    met5 0 128 22 205, \
+    met5 3123 2085 3165 2167, \
+    met5 0 1983 50 2071, \
+    met5 59.52 1183.09 3103.58 4703.09, \
+    met5 1943 1153 1944 1155, \
+    met5 1815 1130 1816 1132, \
+    met5 631 144 650 183, \
+    met4 1040 189 1052 190 \
+"
+add_route_obs
+
+run_power_grid_generation
+
+################ Place and route on the optmized netlist ################
+set ::env(PL_TARGET_DENSITY) 0.26
+set ::env(PL_ROUTABILITY_DRIVEN) 0
+set ::env(PL_TIME_DRIVEN) 1
+set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 0
+set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 0
+set ::env(GLB_RESIZER_DESIGN_OPTIMIZATIONS) 0
+set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) 0
+run_placement
+run_cts
+
+# Adding met4/5 routing obstructions over the the RAMs and housekeeping to prevent routing DRCs
+set ::env(GRT_OBS) "\
+    met5 90 175.0 496.18 612.92, \
+    met5 582.00 175.00 988.18 612.92, \
+    met5 1800 125.00 2206.18 562.92, \
+    met5 2650 190 3060.23 740.95, \
+    met4 90 175.0 496.18 612.92, \
+    met4 582.00 175.00 988.18 612.92, \
+    met4 1800 125.00 2206.18 562.92, \
+    met4 2650 190 3060.23 740.95 \
+"
+# adding hk_serial_clock and hk_serial_load as clocks after CTS by changing
+# the sdc file to another one which they are defined as clocks in it. 
+set ::env(CURRENT_SDC) $::env(DESIGN_DIR)/sdc_files/base_2.sdc
+
+set ::env(GRT_ALLOW_CONGESTION) 0
+run_routing
+################   RCX sta    ################
+run_parasitics_sta
+
+################   IR drop    ################
+# run_irdrop_report
+
+################   Antenna check    ################
+run_antenna_check
+
+################   magic    ################
+run_magic
+
+################   LVS    ################
+# run_magic_spice_export;
+# run_lvs;
+
+###############   DRC    ################
+run_magic_drc
+
+################   Saving views and reports    ################
+save_final_views
+save_views -save_path .. -tag $::env(OPENLANE_RUN_TAG)
+## 
+    calc_total_runtime
+    save_state
+    generate_final_summary_report
+    check_timing_violations
+    if { [info exists arg_values(-save_path)]\
+        && $arg_values(-save_path) != "" } {
+        set ::env(HOOK_OUTPUT_PATH) "[file normalize $arg_values(-save_path)]"
+    } else {
+        set ::env(HOOK_OUTPUT_PATH) $::env(RESULTS_DIR)/final
+    }
+    if {[info exists flags_map(-run_hooks)]} {
+        run_post_run_hooks
+    }
+    puts_success "Flow complete."
+    show_warnings "Note that the following warnings have been generated:"
+
+################   Copying reports    ################
+set run_dir $::env(DESIGN_DIR)/runs/$::env(RUN_TAG)
+## copying signoff reports
+set sourceDir $run_dir/reports/signoff
+set targetDir $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/openlane-signoff/
+foreach f [glob -directory $sourceDir -nocomplain *] {
+    file copy -force $f $targetDir
+}
+## copying spefs
+set sourceDir $run_dir/results/routing/mca/spef/
+set targetDir $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/openlane-signoff/spef/
+foreach f [glob -directory $sourceDir -nocomplain *] {
+    file copy -force $f $targetDir
+}
+## copying sdf
+set sourceDir $run_dir/results/routing/mca/sdf/nom/
+set targetDir $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/openlane-signoff/sdf/nom/
+foreach f [glob -directory $sourceDir -nocomplain *] {
+    file copy -force $f $targetDir
+}
+set sourceDir $run_dir/results/routing/mca/sdf/min/
+set targetDir $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/openlane-signoff/sdf/min/
+foreach f [glob -directory $sourceDir -nocomplain *] {
+    file copy -force $f $targetDir
+}
+set sourceDir $run_dir/results/routing/mca/sdf/max/
+set targetDir $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/openlane-signoff/sdf/max/
+foreach f [glob -directory $sourceDir -nocomplain *] {
+    file copy -force $f $targetDir
+}
+## coping other files
+set flist [list $run_dir/config.tcl $run_dir/openlane.log $run_dir/runtime.yaml $run_dir/warnings.log]
+file copy -force {*}$flist $::env(CARAVEL_ROOT)/signoff/$::env(DESIGN_NAME)/

openlane/caravan_core/interactive.tcl

@@ -7,7 +7,7 @@ set save_path $::env(CARAVEL_ROOT)
 
 ################   Synthesis   ################
 run_synthesis
-# set_netlist $::env(DESIGN_DIR)/synth_configuration/caravel_core.v
+# set_netlist $::env(DESIGN_DIR)/synth_configuration/caravan_core.v
 # set ::env(CURRENT_SDC) $::env(DESIGN_DIR)/sdc_files/base.sdc
 
 ################   Floorplan   ################
@@ -31,6 +31,10 @@ set ::env(GRT_OBS) "\
     met3 0 4195 3165 4767, \
     met4 0 4195 3165 4767, \
     met5 0 4195 3165 4767, \
+    met4 990 0 1075 45, \
+    met5 0 128 22 205, \
+    met5 3123 2085 3165 2167, \
+    met5 0 1983 50 2071, \
     met5 59.52 1183.09 3103.58 4703.09, \
     met5 1943 1153 1944 1155, \
     met5 1815 1130 1816 1132, \
@@ -91,7 +95,7 @@ set ::env(GRT_OBS) "\
 # the sdc file to another one which they are defined as clocks in it. 
 set ::env(CURRENT_SDC) $::env(DESIGN_DIR)/sdc_files/base_2.sdc
 
-# set ::env(GRT_ALLOW_CONGESTION) 0
+set ::env(GRT_ALLOW_CONGESTION) 0
 run_routing
 ################   RCX sta    ################
 run_parasitics_sta

openlane/caravan_core/pdn_configuration/pdn.tcl

@@ -116,7 +116,7 @@ add_pdn_stripe \
     add_pdn_stripe \
         -grid stdcell_grid \
         -layer met5 \
-        -width 12.8 \
+        -width 14.4 \
         -pitch 120 \
         -offset 239 \
         -spacing 2.4 \

openlane/update_signoff.py

@@ -5,7 +5,7 @@ openlane_folder = './'
 signoff_folder = '../signoff'
 
 # macro_folders = os.listdir(openlane_folder)
-macro_folders = ['housekeeping_alt']
+macro_folders = ['caravan_core']
 
 # iterate over each macro folder 
 for macro_folder in macro_folders: