openlane/scripts/openroad/layer_adjustments.tcl

# Copyright 2020-2021 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set_global_routing_layer_adjustment * $::env(GLB_RT_ADJUSTMENT)

# Legacy format for layer adjustments: Convert to new format
set array [split $::env(GLB_RT_LAYER_ADJUSTMENTS) ","]

set conversion_flag 0

set l1_adj [lindex $array 0]
if { [info exists ::env(GLB_RT_L1_ADJUSTMENT)] } {
    set conversion_flag 1
    set l1_adj $::env(GLB_RT_L1_ADJUSTMENT)
}
set l2_adj [lindex $array 1]
if { [info exists ::env(GLB_RT_L2_ADJUSTMENT)] } {
    set conversion_flag 1
    set l2_adj $::env(GLB_RT_L2_ADJUSTMENT)
}
set l3_adj [lindex $array 2]
if { [info exists ::env(GLB_RT_L3_ADJUSTMENT)] } {
    set conversion_flag 1
    set l3_adj $::env(GLB_RT_L3_ADJUSTMENT)
}
set l4_adj [lindex $array 3]
if { [info exists ::env(GLB_RT_L4_ADJUSTMENT)] } {
    set conversion_flag 1
    set l4_adj $::env(GLB_RT_L4_ADJUSTMENT)
}
set l5_adj [lindex $array 4]
if { [info exists ::env(GLB_RT_L5_ADJUSTMENT)] } {
    set conversion_flag 1
    set l5_adj $::env(GLB_RT_L5_ADJUSTMENT)
}
set l6_adj [lindex $array 5]
if { [info exists ::env(GLB_RT_L6_ADJUSTMENT)] } {
    set conversion_flag 1
    set l6_adj $::env(GLB_RT_L6_ADJUSTMENT)
}

if { $conversion_flag } {
    set ::env(GLB_RT_LAYER_ADJUSTMENTS) "$l1_adj,$l2_adj,$l3_adj,$l4_adj,$l5_adj,$l6_adj"

    puts stderr "You're using a GLB_RT_LX_ADJUSTMENT variable in your configuration, which is a deprecated variable that will be removed in the future."
    puts stderr "We recommend you update your configuration as follows:"
    puts stderr "\tset ::env(GLB_RT_LAYER_ADJUSTMENTS) $::env(GLB_RT_LAYER_ADJUSTMENTS)"
}

set i 0
foreach adjustment $array {
    set layer_name [lindex $::env(TECH_METAL_LAYERS) $i]
    set_global_routing_layer_adjustment $layer_name $adjustment
    incr i
}