Merge pull request #2636 from gudeh/gpl-swerv_wrapper-virtual-TD

maliberty · web-flow · commit ad3512e9058c · 2024-12-20T13:10:46.000-08:00
gpl: swerv wrapper only virtual timing-driven iterations
diff --git a/flow/designs/nangate45/swerv_wrapper/config.mk b/flow/designs/nangate45/swerv_wrapper/config.mk
@@ -33,3 +33,4 @@ export TNS_END_PERCENT        = 100
 
 export FASTROUTE_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/fastroute.tcl
 
+export GPL_KEEP_OVERFLOW = 0
diff --git a/flow/scripts/global_place.tcl b/flow/scripts/global_place.tcl
@@ -17,6 +17,9 @@ if {$::env(GPL_ROUTABILITY_DRIVEN)} {
 # Parameters for timing driven mode in global placement
 if {$::env(GPL_TIMING_DRIVEN)} {
   lappend global_placement_args {-timing_driven}
+  if {[info exists ::env(GPL_KEEP_OVERFLOW)]} {
+    lappend global_placement_args -keep_resize_below_overflow $::env(GPL_KEEP_OVERFLOW)
+  }
 }
 
 proc do_placement {global_placement_args} {

Original file line number	Diff line number	Diff line change
`@@ -33,3 +33,4 @@ export TNS_END_PERCENT = 100`
`33`	`33`
`34`	`34`	`export FASTROUTE_TCL = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/fastroute.tcl`
`35`	`35`
	`36`	`+export GPL_KEEP_OVERFLOW = 0`
Original file line number	Diff line number	Diff line change
`@@ -17,6 +17,9 @@ if {$::env(GPL_ROUTABILITY_DRIVEN)} {`
`17`	`17`	`# Parameters for timing driven mode in global placement`
`18`	`18`	`if {$::env(GPL_TIMING_DRIVEN)} {`
`19`	`19`	`lappend global_placement_args {-timing_driven}`
	`20`	`+ if {[info exists ::env(GPL_KEEP_OVERFLOW)]} {`
	`21`	`+ lappend global_placement_args -keep_resize_below_overflow $::env(GPL_KEEP_OVERFLOW)`
	`22`	`+ }`
`20`	`23`	`}`
`21`	`24`
`22`	`25`	`proc do_placement {global_placement_args} {`