designs/asap7/mock-big-array: more configurable testcase

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/designs/asap7/mock-array-big/Element/config.mk

@@ -7,8 +7,9 @@ export SDC_FILE      = designs/asap7/mock-array-big/constraints.sdc
 export PLATFORM               = asap7
 
 export PLACE_DENSITY          = 0.40
-export CORE_UTILIZATION       = 20
-export CORE_ASPECT_RATIO      = 1
-export CORE_MARGIN            = 2
+export CORE_AREA = $(shell python3 designs/asap7/mock-array-big/ce_core_area.py)
+export DIE_AREA = $(shell python3 designs/asap7/mock-array-big/ce_die_area.py)
 
 export IO_CONSTRAINTS = designs/asap7/mock-array-big/Element/io.tcl
+
+export MACRO_PLACE_HALO = 1 1

flow/designs/asap7/mock-array-big/Element/io.tcl

@@ -6,7 +6,8 @@ proc pin1 {fmt p} {
     return $result
 }
 
-set data_width 8
+set data_width [expr {[info exists ::env(MOCK_ARRAY_DATAWIDTH)] ? $::env(MOCK_ARRAY_DATAWIDTH) : 8}]
+
 set assignments [list \
     top bottom \
     [list [ concat \
@@ -44,3 +45,5 @@ foreach {direction direction2 names} $assignments {
     set_io_pin_constraint -region $direction2:* -pin_names [lindex $names 1]
     set_io_pin_constraint -mirrored_pins $mirrored
 }
+
+set_io_pin_constraint -region top:* -pin_names clock

flow/designs/asap7/mock-array-big/README.md

@@ -0,0 +1,12 @@
+Mock array big
+==============
+
+A mock array that can be configured in different sizes to generate
+interesting test-cases.
+
+By default, the array is 8x8 elements and has an 8 bit datapath.
+
+To create a 4x4 element array with 4 bit datapath, run:
+
+    MOCK_ARRAY_WIDTH=4 MOCK_ARRAY_HEIGHT=4 MOCK_ARRAY_DATAWIDTH=4 ./configure.sh
+    MOCK_ARRAY_WIDTH=4 MOCK_ARRAY_HEIGHT=4 MOCK_ARRAY_DATAWIDTH=4 make DESIGN_CONFIG=designs/asap7/mock-array-big/config.mk

flow/designs/asap7/mock-array-big/ce_core_area.py

@@ -0,0 +1,3 @@
+import config
+
+print(f'1 1 {config.element_width - 1} {config.element_height - 1}')

flow/designs/asap7/mock-array-big/ce_die_area.py

@@ -0,0 +1,3 @@
+import config
+
+print(f'0 0 {config.element_width} {config.element_height}')

flow/designs/asap7/mock-array-big/config.mk

@@ -10,9 +10,8 @@ export PLATFORM               = asap7
 
 export PLACE_DENSITY          = 0.30
 
-export CORE_UTILIZATION       = 20
-export CORE_ASPECT_RATIO      = 1
-export CORE_MARGIN            = 2
+export CORE_AREA = $(shell python3 designs/asap7/mock-array-big/core_area.py)
+export DIE_AREA = $(shell python3 designs/asap7/mock-array-big/die_area.py)
 
 BLOCKS = Element
 
@@ -22,4 +21,4 @@ export MACRO_PLACEMENT = ./designs/asap7/mock-array-big/macro-placement.cfg
 
 export IO_CONSTRAINTS = designs/asap7/mock-array-big/io.tcl
 
-export MACRO_PLACE_HALO = 2 2
+export MACRO_PLACE_HALO = 1 1

flow/designs/asap7/mock-array-big/config.py

@@ -0,0 +1,25 @@
+# see flow/platforms/asap7/openRoad/pdn/grid_strategy-M2-M5-M7.tcl
+import os
+
+rows = int(os.environ.get("MOCK_ARRAY_HEIGHT", "8"))
+cols = int(os.environ.get("MOCK_ARRAY_WIDTH", "8"))
+pitch_scale = int(os.environ.get("MOCK_ARRAY_PITCH_SCALE", "10"))
+
+
+# from platforms/asap7/openRoad/make_tracks.tcl, smallest common x_pitch and y_pitch
+# denominator
+lowest_common_grid_denominator = 0.576
+
+power_x_pitch = 4 * lowest_common_grid_denominator
+power_y_pitch = 4 * lowest_common_grid_denominator
+y_pitch = (power_y_pitch * pitch_scale)
+x_pitch = (power_x_pitch * pitch_scale)
+offset_x = power_x_pitch * 4
+offset_y = power_y_pitch * 4
+margin = 4 * lowest_common_grid_denominator
+
+element_width = x_pitch - power_x_pitch * 4
+element_height = y_pitch - power_y_pitch * 4
+
+height = rows * y_pitch + offset_y
+width = cols * x_pitch + offset_x

flow/designs/asap7/mock-array-big/configure.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -ex
+
+# allow this script to be invoked from any folder
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+BASE=$DIR/../..
+
+cd $DIR
+
+python3 placement.py >macro-placement.cfg
+
+cd ../../src/mock-array-big
+
+sbt -Duser.home="$HOME" -Djline.terminal=jline.UnsupportedTerminal -batch \
+     "test:runMain GenerateMockArray --width ${MOCK_ARRAY_WIDTH:-8} --height ${MOCK_ARRAY_HEIGHT:-8} --dataWidth ${MOCK_ARRAY_DATAWIDTH:-8} -- --emit-modules verilog --target-dir ."

flow/designs/asap7/mock-array-big/constraints.sdc

@@ -1,9 +1,10 @@
 set sdc_version 2.0
-create_clock [get_ports clock] -period 250 -waveform {0 125}
+
+set clk_period 8000
+create_clock [get_ports clock] -period $clk_period -waveform [list 0 [expr $clk_period/2]]
 
 set clk_name  clock
 set clk_port_name clock
-set clk_period 250
 set clk_io_pct 0.2
 
 set clk_port [get_ports $clk_port_name]

flow/designs/asap7/mock-array-big/core_area.py

@@ -0,0 +1,6 @@
+import config
+
+x = config.margin
+y = config.margin
+
+print(f'{y} {x} {x+config.width} {y+config.height}')