Merge pull request #3217 from jeffng-or/asap7-cva6-switch-to-util

switched asap7 cva6 from die/core area to utilization with margin

Author: maliberty

flow/designs/asap7/cva6/config.mk

@@ -79,10 +79,10 @@ export ADDITIONAL_LIBS = $(PLATFORM_DIR)/lib/NLDM/fakeram7_256x256.lib
 
 export SDC_FILE               = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NAME)/constraint.sdc
 
-export DIE_AREA               = 0 0 350 350
-export CORE_AREA              = 1.08 1.08 340 340
+export CORE_UTILIZATION       = 40
+export CORE_MARGIN            = 2
+export MACRO_HALO             = 5
 export PLACE_DENSITY          = 0.50
-export MACRO_HALO             = 5 5
 
 # a smoketest for this option, there are a
 # few last gasp iterations

flow/designs/asap7/cva6/rules-base.json

@@ -1,6 +1,6 @@
 {
     "synth__design__instance__area__stdcell": {
-        "value": 40692.1,
+        "value": 40631.65,
         "compare": "<="
     },
     "constraints__clocks__count": {
@@ -12,27 +12,27 @@
         "compare": "<="
     },
     "placeopt__design__instance__count__stdcell": {
-        "value": 164118,
+        "value": 163049,
         "compare": "<="
     },
     "detailedplace__design__violations": {
         "value": 0,
         "compare": "=="
     },
     "cts__design__instance__count__setup_buffer": {
-        "value": 14271,
+        "value": 14178,
         "compare": "<="
     },
     "cts__design__instance__count__hold_buffer": {
-        "value": 14271,
+        "value": 14178,
         "compare": "<="
     },
     "globalroute__antenna_diodes_count": {
         "value": 0,
         "compare": "<="
     },
     "detailedroute__route__wirelength": {
-        "value": 1618999,
+        "value": 1884562,
         "compare": "<="
     },
     "detailedroute__route__drc_errors": {
@@ -56,15 +56,15 @@
         "compare": "<="
     },
     "finish__timing__drv__setup_violation_count": {
-        "value": 7136,
+        "value": 7089,
         "compare": "<="
     },
     "finish__timing__drv__hold_violation_count": {
-        "value": 105,
+        "value": 101,
         "compare": "<="
     },
     "finish__timing__wns_percent_delay": {
-        "value": -20.43,
+        "value": -20.3,
         "compare": ">="
     }
 }