feat: expose more OpenROAD options

openlane/scripts/openroad/common/io.tcl

@@ -474,3 +474,23 @@ if { [namespace exists utl] } {
         puts "%OL_METRIC $metric $value"
     }
 }
+
+proc append_if_exists_argument {list_arg glob_variable_name option} {
+    upvar $list_arg local_array
+    if [info exists ::env($glob_variable_name) ] { 
+        lappend local_array $option $::env($glob_variable_name)
+    }
+}
+
+proc append_if_flag {list_arg glob_variable_name flag} {
+    upvar $list_arg local_array
+    if { [info exists ::env($glob_variable_name)] && $::env($glob_variable_name) } { 
+        lappend local_array $flag
+    }
+}
+proc append_if_not_flag {list_arg glob_variable_name flag} {
+    upvar $list_arg local_array
+    if { [info exists ::env($glob_variable_name)] && !$::env($glob_variable_name) } { 
+        lappend local_array $flag
+    }
+}

openlane/scripts/openroad/gpl.tcl

@@ -66,12 +66,17 @@ if { [info exists ::env(PL_MAX_PHI_COEFFICIENT)] } {
 	lappend arg_list -max_phi_coef $::env(PL_MAX_PHI_COEFFICIENT)
 }
 
+if { [info exists ::env(PL_ROUTABILITY_MAX_DENSITY_PCT)] } {
+	lappend arg_list -routability_max_density $::env(PL_ROUTABILITY_MAX_DENSITY_PCT)
+}
+
 set cell_pad_side [expr $::env(GPL_CELL_PADDING) / 2]
 
 lappend arg_list -pad_right $cell_pad_side
 lappend arg_list -pad_left $cell_pad_side
 lappend arg_list -init_wirelength_coef $::env(PL_WIRE_LENGTH_COEF)
 
+puts "\[INFO\] args: $arg_list"
 global_placement {*}$arg_list
 
 

openlane/scripts/openroad/repair_design.tcl

@@ -42,17 +42,25 @@ if { $::env(DESIGN_REPAIR_BUFFER_OUTPUT_PORTS) } {
     buffer_ports -outputs
 }
 
+set arg_list [list]
+lappend arg_list -verbose
+lappend arg_list -max_wire_length $::env(DESIGN_REPAIR_MAX_WIRE_LENGTH)
+lappend arg_list -slew_margin $::env(DESIGN_REPAIR_MAX_SLEW_PCT)
+lappend arg_list -cap_margin $::env(DESIGN_REPAIR_MAX_CAP_PCT)
+if { [info exists ::env(DESIGN_REPAIR_MAX_UTIL_PCT)] } {
+    lappend arg_list -max_utilization $::env(DESIGN_REPAIR_MAX_UTIL_PCT)
+}
+if { [info exists ::env(DESIGN_REPAIR_BUFFER_GAIN)] } {
+    lappend arg_list -buffer_gain $::env(DESIGN_REPAIR_BUFFER_GAIN)
+}
 # Repair Design
-repair_design -verbose \
-    -max_wire_length $::env(DESIGN_REPAIR_MAX_WIRE_LENGTH) \
-    -slew_margin $::env(DESIGN_REPAIR_MAX_SLEW_PCT) \
-    -cap_margin $::env(DESIGN_REPAIR_MAX_CAP_PCT)
+repair_design {*}$arg_list
 
 if { $::env(DESIGN_REPAIR_TIE_FANOUT) } {
     # repair tie lo fanout
-    repair_tie_fanout -separation $::env(DESIGN_REPAIR_TIE_SEPARATION) $::env(SYNTH_TIELO_CELL)
+    repair_tie_fanout -verbose -separation $::env(DESIGN_REPAIR_TIE_SEPARATION) $::env(SYNTH_TIELO_CELL)
     # repair tie hi fanout
-    repair_tie_fanout -separation $::env(DESIGN_REPAIR_TIE_SEPARATION) $::env(SYNTH_TIEHI_CELL)
+    repair_tie_fanout -verbose -separation $::env(DESIGN_REPAIR_TIE_SEPARATION) $::env(SYNTH_TIEHI_CELL)
 }
 
 report_floating_nets -verbose

openlane/scripts/openroad/repair_design_postgrt.tcl

@@ -31,11 +31,19 @@ source $::env(SCRIPTS_DIR)/openroad/common/grt.tcl
 #}
 estimate_parasitics -global_routing
 
-# Repair design
-repair_design -verbose \
-    -max_wire_length $::env(GRT_DESIGN_REPAIR_MAX_WIRE_LENGTH) \
-    -slew_margin $::env(GRT_DESIGN_REPAIR_MAX_SLEW_PCT) \
-    -cap_margin $::env(GRT_DESIGN_REPAIR_MAX_CAP_PCT)
+set arg_list [list]
+lappend arg_list -verbose
+lappend arg_list -max_wire_length $::env(GRT_DESIGN_REPAIR_MAX_WIRE_LENGTH)
+lappend arg_list -slew_margin $::env(GRT_DESIGN_REPAIR_MAX_SLEW_PCT)
+lappend arg_list -cap_margin $::env(GRT_DESIGN_REPAIR_MAX_CAP_PCT)
+if { [info exists ::env(GRT_DESIGN_REPAIR_MAX_UTIL_PCT)] } {
+    lappend arg_list -max_utilization $::env(GRT_DESIGN_REPAIR_MAX_UTIL_PCT)
+}
+if { [info exists ::env(GRT_DESIGN_REPAIR_BUFFER_GAIN)] } {
+    lappend arg_list -buffer_gain $::env(GRT_DESIGN_REPAIR_BUFFER_GAIN)
+}
+# Repair Design
+repair_design {*}$arg_list
 
 # Re-DPL and GRT
 source $::env(SCRIPTS_DIR)/openroad/common/dpl.tcl

openlane/scripts/openroad/rsz_timing_postcts.tcl

@@ -1,4 +1,4 @@
-# Copyright 2020-2023 Efabless Corporation
+# Copyright 2020-2024 Efabless Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -34,9 +34,12 @@ lappend arg_list -verbose
 lappend arg_list -setup
 lappend arg_list -setup_margin $::env(PL_RESIZER_SETUP_SLACK_MARGIN)
 lappend arg_list -max_buffer_percent $::env(PL_RESIZER_SETUP_MAX_BUFFER_PCT)
-if { $::env(PL_RESIZER_GATE_CLONING) != 1 } {
-    lappend arg_list -skip_gate_cloning
-}
+append_if_not_flag arg_list PL_RESIZER_SETUP_BUFFERING -skip_buffering
+append_if_not_flag arg_list PL_RESIZER_SETUP_BUFFER_REMOVAL -skip_buffer_removal
+append_if_not_flag arg_list PL_RESIZER_SETUP_GATE_CLONING -skip_gate_cloning
+append_if_exists_argument arg_list PL_RESIZER_SETUP_REPAIR_TNS_PCT -repair_tns
+append_if_exists_argument arg_list PL_RESIZER_SETUP_MAX_UTIL_PCT -max_utilization
+
 repair_timing {*}$arg_list
 
 set arg_list [list]
@@ -45,10 +48,11 @@ lappend arg_list -hold
 lappend arg_list -setup_margin $::env(PL_RESIZER_SETUP_SLACK_MARGIN)
 lappend arg_list -hold_margin $::env(PL_RESIZER_HOLD_SLACK_MARGIN)
 lappend arg_list -max_buffer_percent $::env(PL_RESIZER_HOLD_MAX_BUFFER_PCT)
-if { $::env(PL_RESIZER_ALLOW_SETUP_VIOS) == 1 } {
-    lappend arg_list -allow_setup_violations
-}
+append_if_flag arg_list PL_RESIZER_ALLOW_SETUP_VIOS -allow_setup_violations
+append_if_exists_argument arg_list PL_RESIZER_HOLD_REPAIR_TNS_PCT -repair_tns
+append_if_exists_argument arg_list PL_RESIZER_HOLD_MAX_UTIL_PCT -max_utilization
 repair_timing {*}$arg_list
+puts "{*}$arg_list"
 
 # Legalize
 source $::env(SCRIPTS_DIR)/openroad/common/dpl.tcl

openlane/scripts/openroad/rsz_timing_postgrt.tcl

@@ -1,4 +1,4 @@
-# Copyright 2020-2023 Efabless Corporation
+# Copyright 2020-2024 Efabless Corporation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -37,9 +37,12 @@ lappend arg_list -verbose
 lappend arg_list -setup
 lappend arg_list -setup_margin $::env(GRT_RESIZER_SETUP_SLACK_MARGIN)
 lappend arg_list -max_buffer_percent $::env(GRT_RESIZER_SETUP_MAX_BUFFER_PCT)
-if { $::env(GRT_RESIZER_GATE_CLONING) != 1 } {
-    lappend arg_list -skip_gate_cloning
-}
+append_if_not_flag arg_list GRT_RESIZER_SETUP_BUFFERING -skip_buffering
+append_if_not_flag arg_list GRT_RESIZER_SETUP_BUFFER_REMOVAL -skip_buffer_removal
+append_if_not_flag arg_list GRT_RESIZER_SETUP_GATE_CLONING -skip_gate_cloning
+append_if_exists_argument arg_list GRT_RESIZER_SETUP_REPAIR_TNS_PCT -repair_tns
+append_if_exists_argument arg_list GRT_RESIZER_SETUP_MAX_UTIL_PCT -max_utilization
+
 repair_timing {*}$arg_list
 
 set arg_list [list]
@@ -48,11 +51,12 @@ lappend arg_list -hold
 lappend arg_list -setup_margin $::env(GRT_RESIZER_SETUP_SLACK_MARGIN)
 lappend arg_list -hold_margin $::env(GRT_RESIZER_HOLD_SLACK_MARGIN)
 lappend arg_list -max_buffer_percent $::env(GRT_RESIZER_HOLD_MAX_BUFFER_PCT)
-if { $::env(GRT_RESIZER_ALLOW_SETUP_VIOS) == 1 } {
-    lappend arg_list -allow_setup_violations
-}
-repair_timing {*}$arg_list
+append_if_flag arg_list GRT_RESIZER_ALLOW_SETUP_VIOS -allow_setup_violations
+append_if_exists_argument arg_list GRT_RESIZER_HOLD_REPAIR_TNS_PCT -repair_tns
+append_if_exists_argument arg_list GRT_RESIZER_HOLD_MAX_UTIL_PCT -max_utilization
 
+repair_timing {*}$arg_list
+#
 # Re-DPL and GRT
 source $::env(SCRIPTS_DIR)/openroad/common/dpl.tcl
 unset_dont_touch_objects

openlane/steps/openroad.py

@@ -1240,6 +1240,12 @@ class _GlobalPlacement(OpenROADStep):
                 units="sites",
                 pdk=True,
             ),
+            Variable(
+                "PL_ROUTABILITY_MAX_DENSITY_PCT",
+                Optional[Decimal],
+                "Upper bound for placement density in routability mode.",
+                units="%",
+            ),
         ]
     )
 
@@ -2170,6 +2176,11 @@ class RepairDesignPostGPL(ResizerStep):
             "Invokes OpenROAD's remove_buffers command to remove buffers from synthesis, which gives OpenROAD more flexibility when buffering nets.",
             default=False,
         ),
+        Variable(
+            "DESIGN_REPAIR_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during design repair.",
+        ),
     ]
 
     def get_script_path(self):
@@ -2226,6 +2237,12 @@ class RepairDesignPostGRT(ResizerStep):
             units="%",
             deprecated_names=["GLB_RESIZER_MAX_CAP_MARGIN"],
         ),
+        Variable(
+            "GRT_DESIGN_REPAIR_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during design post-grt repair.",
+            units="%",
+        ),
     ]
 
     def get_script_path(self):
@@ -2283,10 +2300,47 @@ class ResizerTimingPostCTS(ResizerStep):
             default=False,
         ),
         Variable(
-            "PL_RESIZER_GATE_CLONING",
+            "PL_RESIZER_SETUP_GATE_CLONING",
             bool,
             "Enables gate cloning when attempting to fix setup violations",
             default=True,
+            deprecated_names=["PL_RESIZER_GATE_CLONING"],
+        ),
+        Variable(
+            "PL_RESIZER_SETUP_BUFFERING",
+            bool,
+            "Rebuffering and load splitting during setup fixing.",
+            default=True,
+        ),
+        Variable(
+            "PL_RESIZER_SETUP_BUFFER_REMOVAL",
+            bool,
+            "Buffer removal transform during setup fixing.",
+            default=True,
+        ),
+        Variable(
+            "PL_RESIZER_SETUP_REPAIR_TNS_PCT",
+            Optional[Decimal],
+            "Percentage of violating endpoints to repair during setup fixing.",
+            units="%",
+        ),
+        Variable(
+            "PL_RESIZER_SETUP_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during setup fixing.",
+            units="%",
+        ),
+        Variable(
+            "PL_RESIZER_HOLD_REPAIR_TNS_PCT",
+            Optional[Decimal],
+            "Percentage of violating endpoints to repair during hold fixing.",
+            units="%",
+        ),
+        Variable(
+            "PL_RESIZER_HOLD_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during hold fixing.",
+            units="%",
         ),
     ]
 
@@ -2350,17 +2404,54 @@ class ResizerTimingPostGRT(ResizerStep):
             deprecated_names=["GLB_RESIZER_ALLOW_SETUP_VIOS"],
         ),
         Variable(
-            "GRT_RESIZER_GATE_CLONING",
+            "GRT_RESIZER_SETUP_GATE_CLONING",
             bool,
             "Enables gate cloning when attempting to fix setup violations",
             default=True,
+            deprecated_names=["GRT_RESIZER_GATE_CLONING"],
         ),
         Variable(
             "GRT_RESIZER_RUN_GRT",
             bool,
             "Gates running global routing after resizer steps. May be useful to disable for designs where global routing takes non-trivial time.",
             default=True,
         ),
+        Variable(
+            "GRT_RESIZER_SETUP_BUFFERING",
+            bool,
+            "Rebuffering and load splitting during setup fixing.",
+            default=True,
+        ),
+        Variable(
+            "GRT_RESIZER_SETUP_BUFFER_REMOVAL",
+            bool,
+            "Buffer removal transform during setup fixing.",
+            default=True,
+        ),
+        Variable(
+            "GRT_RESIZER_SETUP_REPAIR_TNS_PCT",
+            Optional[Decimal],
+            "Percentage of violating endpoints to repair during setup fixing.",
+            units="%",
+        ),
+        Variable(
+            "GRT_RESIZER_SETUP_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during setup fixing.",
+            units="%",
+        ),
+        Variable(
+            "GRT_RESIZER_HOLD_REPAIR_TNS_PCT",
+            Optional[Decimal],
+            "Percentage of violating endpoints to repair during hold fixing.",
+            units="%",
+        ),
+        Variable(
+            "GRT_RESIZER_HOLD_MAX_UTIL_PCT",
+            Optional[Decimal],
+            "Defines the percentage of core area used during hold fixing.",
+            units="%",
+        ),
     ]
 
     def get_script_path(self):