Pass the target utilitization to macro placement

Refactor the common code to set_place_density.tcl

Signed-off-by: Matt Liberty <[email protected]>

Author: maliberty

flow/scripts/global_place.tcl

@@ -15,18 +15,7 @@ if {[info exist env(FASTROUTE_TCL)]} {
   }
 }
 
-# check the lower boundary of the PLACE_DENSITY and add PLACE_DENSITY_LB_ADDON if it exists
-if {[info exist ::env(PLACE_DENSITY_LB_ADDON)]} {
-  set place_density_lb [gpl::get_global_placement_uniform_density \
-  -pad_left $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT) \
-  -pad_right $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT)]
-  set place_density [expr $place_density_lb + ((1.0 - $place_density_lb) * $::env(PLACE_DENSITY_LB_ADDON)) + 0.01]
-  if {$place_density > 1.0} {
-    utl::error FLW 24 "Place density exceeds 1.0 (current PLACE_DENSITY_LB_ADDON = $::env(PLACE_DENSITY_LB_ADDON)). Please check if the value of PLACE_DENSITY_LB_ADDON is between 0 and 0.99."
-  }
-} else {
-  set place_density $::env(PLACE_DENSITY)
-}
+source $::env(SCRIPTS_DIR)/set_place_density.tcl
 
 set global_placement_args {}
 

flow/scripts/global_place_skip_io.tcl

@@ -24,18 +24,7 @@ if {
 } {
   puts "Has top down IO Constraints. Skip global placement without IOs"
 } else {
-# check the lower boundary of the PLACE_DENSITY and add PLACE_DENSITY_LB_ADDON if it exists
-  if {[info exist ::env(PLACE_DENSITY_LB_ADDON)]} {
-    set place_density_lb [gpl::get_global_placement_uniform_density \
-    -pad_left $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT) \
-    -pad_right $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT)]
-    set place_density [expr $place_density_lb + $::env(PLACE_DENSITY_LB_ADDON) + 0.01]
-    if {$place_density > 1.0} {
-      set place_density 1.0
-    }
-  } else {
-    set place_density $::env(PLACE_DENSITY)
-  }
+  source $::env(SCRIPTS_DIR)/set_place_density.tcl
 
   if { 0 != [llength [array get ::env GLOBAL_PLACEMENT_ARGS]] } {
   global_placement -skip_io -density $place_density \

flow/scripts/macro_place_util.tcl

@@ -118,6 +118,9 @@ if {[find_macros] != ""} {
         append additional_rtlmp_args " -fence_uy $env(RTLMP_FENCE_UY)"
     }
 
+    source $::env(SCRIPTS_DIR)/set_place_density.tcl
+    append additional_rtlmp_args " -target_util $place_density"
+
     set all_args $additional_rtlmp_args
 
     if { [info exists ::env(RTLMP_ARGS)] } {

flow/scripts/set_place_density.tcl

@@ -0,0 +1,12 @@
+# check the lower boundary of the PLACE_DENSITY and add PLACE_DENSITY_LB_ADDON if it exists
+if {[info exist ::env(PLACE_DENSITY_LB_ADDON)]} {
+  set place_density_lb [gpl::get_global_placement_uniform_density \
+  -pad_left $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT) \
+  -pad_right $::env(CELL_PAD_IN_SITES_GLOBAL_PLACEMENT)]
+  set place_density [expr $place_density_lb + ((1.0 - $place_density_lb) * $::env(PLACE_DENSITY_LB_ADDON)) + 0.01]
+  if {$place_density > 1.0} {
+    utl::error FLW 24 "Place density exceeds 1.0 (current PLACE_DENSITY_LB_ADDON = $::env(PLACE_DENSITY_LB_ADDON)). Please check if the value of PLACE_DENSITY_LB_ADDON is between 0 and 0.99."
+  }
+} else {
+  set place_density $::env(PLACE_DENSITY)
+}