# # Synthesis Synopsys Flow # james.stine@okstate.edu 27 Sep 2015 # # start run clock set t1 [clock seconds] # Ignore unnecessary warnings: # intraassignment delays for nonblocking assignments are ignored suppress_message {VER-130} # statements in initial blocks are ignored suppress_message {VER-281} suppress_message {VER-173} # Unsupported system task '$warn' suppress_message {VER-274} # Enable Multicore set_host_options -max_cores $::env(MAXCORES) # get outputDir and configDir from environment (Makefile) set outputDir $::env(OUTPUTDIR) set cfg $::env(CONFIGDIR) set hdl_src "../src" set saifpower $::env(SAIFPOWER) set maxopt $::env(MAXOPT) set drive $::env(DRIVE) set width $::env(WIDTH) eval file copy -force [glob ${cfg}/*.vh] {$outputDir/hdl/} eval file copy -force [glob ${hdl_src}/cvw.sv] {$outputDir/hdl/} eval file copy -force [glob ${hdl_src}/*/*.sv] {$outputDir/hdl/} eval file copy -force [glob ${hdl_src}/*/*/*.sv] {$outputDir/hdl/} # Check if a wrapper is needed and create it (to pass parameters when cvw_t parameters are used) set wrapper 0 if {[catch {eval exec grep "cvw_t" $outputDir/hdl/$::env(DESIGN).sv}] == 0} { echo "Creating wrapper" set wrapper 1 # make the wrapper exec python3 $::env(WALLY)/synthDC/scripts/wrapperGen.py $::env(DESIGN) $outputDir/hdl } # Enables name mapping if { $saifpower == 1 } { saif_map -start } # Verilog files set my_verilog_files [glob $outputDir/hdl/cvw.sv $outputDir/hdl/*.sv] # Set toplevel if { $wrapper == 1 } { set my_toplevel $::env(DESIGN)wrapper } else { set my_toplevel $::env(DESIGN) } set my_design $::env(DESIGN) # Set number of significant digits set report_default_significant_digits 6 # V(HDL) Unconnectoed Pins Output set verilogout_show_unconnected_pins "true" set vhdlout_show_unconnected_pins "true" # Set up MW List set MY_LIB_NAME $my_toplevel # Create MW if { [shell_is_in_topographical_mode] } { echo "In Topographical Mode...processing\n" create_mw_lib -technology $MW_REFERENCE_LIBRARY/$MW_TECH_FILE.tf \ -mw_reference_library $mw_reference_library $outputDir/$MY_LIB_NAME # Open MW open_mw_lib $outputDir/$MY_LIB_NAME # TLU+ set_tlu_plus_files -max_tluplus $MAX_TLU_FILE -min_tluplus $MIN_TLU_FILE \ -tech2itf_map $PRS_MAP_FILE } else { echo "In normal DC mode...processing\n" } # Due to parameterized Verilog must use analyze/elaborate and not # read_verilog/vhdl (change to pull in Verilog and/or VHDL) # #set alib_library_analysis_path ./$outputDir define_design_lib WORK -path ./$outputDir/WORK analyze -f sverilog -lib WORK $my_verilog_files # If wrapper=0, we want to run against a specific module and pass # width to DC if { $wrapper == 1 } { elaborate $my_toplevel -lib WORK } else { elaborate $my_toplevel -lib WORK -parameters WIDTH=$width } # Set the current_design current_design $my_toplevel link # Reset all constraints reset_design # Power Dissipation Analysis ######### OPTIONAL !!!!!!!!!!!!!!!! if { $saifpower == 1 } { read_saif -input power.saif -instance_name testbench/dut/core -auto_map_names -verbose } # Set reset false path if {$drive != "INV"} { set_false_path -from [get_ports reset] } # for PPA multiplexer synthesis if {(($::env(DESIGN) == "ppa_mux2d_1") || ($::env(DESIGN) == "ppa_mux4d_1") || ($::env(DESIGN) == "ppa_mux8d_1"))} { set_false_path -from {s} } # Set Frequency in [MHz] or period in [ns] set my_clock_pin clk set my_uncertainty 0.0 set my_clk_freq_MHz $::env(FREQ) set my_period [expr 1000.0 / $my_clk_freq_MHz] # Create clock object set find_clock [ find port [list $my_clock_pin] ] if { $find_clock != [list] } { echo "Found clock!" set my_clk $my_clock_pin create_clock -period $my_period $my_clk set_clock_uncertainty $my_uncertainty [get_clocks $my_clk] } else { echo "Did not find clock! Design is probably combinational!" set my_clk vclk create_clock -period $my_period -name $my_clk } # Optimize paths that are close to critical set_critical_range 0.05 $current_design # Partitioning - flatten or hierarchically synthesize if { $maxopt == 1 } { ungroup -all -simple_names -flatten } # Set input pins except clock set all_in_ex_clk [remove_from_collection [all_inputs] [get_ports $my_clk]] # Specifies delays be propagated through the clock network # This is getting optimized poorly in the current flow, causing a lot of clock skew # and unrealistic bad timing results. # set_propagated_clock [get_clocks $my_clk] # Setting constraints on input ports if {$tech == "sky130"} { if {$drive == "INV"} { set_driving_cell -lib_cell inv -pin Y $all_in_ex_clk } elseif {$drive == "FLOP"} { set_driving_cell -lib_cell sky130_osu_sc_12T_ms__dff_1 -pin Q $all_in_ex_clk } } elseif {$tech == "sky90"} { if {$drive == "INV"} { set_driving_cell -lib_cell scc9gena_inv_1 -pin Y $all_in_ex_clk } elseif {$drive == "FLOP"} { set_driving_cell -lib_cell scc9gena_dfxbp_1 -pin Q $all_in_ex_clk } } elseif {$tech == "tsmc28" || $tech=="tsmc28psyn"} { if {$drive == "INV"} { set_driving_cell -lib_cell INVD1BWP30P140 -pin ZN $all_in_ex_clk } elseif {$drive == "FLOP"} { set_driving_cell -lib_cell DFQD1BWP30P140 -pin Q $all_in_ex_clk } } # Set input/output delay if {$drive == "FLOP"} { set_input_delay 0.0 -max -clock $my_clk $all_in_ex_clk set_output_delay 0.0 -max -clock $my_clk [all_outputs] } else { set_input_delay 0.0 -max -clock $my_clk $all_in_ex_clk set_output_delay 0.0 -max -clock $my_clk [all_outputs] } # Setting load constraint on output ports if {$tech == "sky130"} { if {$drive == "INV"} { set_load [expr [load_of sky130_osu_sc_12T_ms_TT_1P8_25C.ccs/sky130_osu_sc_12T_ms__inv_4/A] * 1] [all_outputs] } elseif {$drive == "FLOP"} { set_load [expr [load_of sky130_osu_sc_12T_ms_TT_1P8_25C.ccs/sky130_osu_sc_12T_ms__dff_1/D] * 1] [all_outputs] } } elseif {$tech == "sky90"} { if {$drive == "INV"} { set_load [expr [load_of scc9gena_tt_1.2v_25C/scc9gena_inv_4/A] * 1] [all_outputs] } elseif {$drive == "FLOP"} { set_load [expr [load_of scc9gena_tt_1.2v_25C/scc9gena_dfxbp_1/D] * 1] [all_outputs] } } elseif {$tech == "tsmc28" || $tech == "tsmc28psyn"} { if {$drive == "INV"} { set_load [expr [load_of tcbn28hpcplusbwp30p140tt0p9v25c/INVD4BWP30P140/I] * 1] [all_outputs] } elseif {$drive == "FLOP"} { set_load [expr [load_of tcbn28hpcplusbwp30p140tt0p9v25c/DFQD1BWP30P140/D] * 1] [all_outputs] } } if {$tech != "tsmc28psyn"} { # Set the wire load model set_wire_load_mode "top" } # Set switching activities # default activity factors are 1 for clocks, 0.1 for others # static probability of 0.5 is used for leakage # Attempt Area Recovery - if looking for minimal area # set_max_area 2000 # Set fanout set_max_fanout 6 $all_in_ex_clk # Fix hold time violations (DH: this doesn't seem to be working right now) #set_fix_hold [all_clocks] # Deal with constants and buffers to isolate ports set_fix_multiple_port_nets -all -buffer_constants # setting up the group paths to find out the required timings # group_path -name OUTPUTS -to [all_outputs] # group_path -name INPUTS -from [all_inputs] # group_path -name COMBO -from [all_inputs] -to [all_outputs] # Save Unmapped Design # set filename [format "%s%s%s%s" $outputDir "/unmapped/" $my_toplevel ".ddc"] # write_file -format ddc -hierarchy -o $filename # Compile statements if { $maxopt == 1 } { compile_ultra -retime optimize_registers } else { compile_ultra -no_seq_output_inversion -no_boundary_optimization } # Eliminate need for assign statements (yuck!) set verilogout_no_tri true set verilogout_equation false # setting to generate output files set write_v 1 ;# generates structual netlist set write_sdc 1 ;# generates synopsys design constraint file for p&r set write_ddc 1 ;# compiler file in ddc format set write_sdf 1 ;# sdf file for backannotated timing sim set write_pow 1 ;# genrates estimated power report set write_rep 1 ;# generates estimated area and timing report set write_cst 1 ;# generate report of constraints set write_hier 1 ;# generate hierarchy report # Report on DESIGN, not wrapper. However, design has a suffix for the parameters. if { $wrapper == 1 } { set designname [format "%s%s" $my_design "__*"] current_design $designname # recreate clock below wrapper level or reporting doesn't work properly set find_clock [ find port [list $my_clock_pin] ] if { $find_clock != [list] } { echo "Found clock!" set my_clk $my_clock_pin create_clock -period $my_period $my_clk set_clock_uncertainty $my_uncertainty [get_clocks $my_clk] } else { echo "Did not find clock! Design is probably combinational!" set my_clk vclk create_clock -period $my_period -name $my_clk } } # Report Constraint Violators set filename [format "%s%s" $outputDir "/reports/constraint_all_violators.rpt"] redirect $filename {report_constraint -all_violators} # Check design redirect $outputDir/reports/check_design.rpt { check_design } # Report Final Netlist (Hierarchical) set filename [format "%s%s%s%s" $outputDir "/mapped/" $my_design ".sv"] write_file -f verilog -hierarchy -output $filename set filename [format "%s%s%s%s" $outputDir "/mapped/" $my_design ".sdc"] write_sdc $filename set filename [format "%s%s%s%s" $outputDir "/mapped/" $my_design ".ddc"] write_file -format ddc -hierarchy -o $filename set filename [format "%s%s%s%s" $outputDir "/mapped/" $my_design ".sdf"] write_sdf $filename # Write SPEF file in case need more precision power exploration for TSMC28psyn if {$tech == "tsmc28psyn"} { set filename [format "%s%s%s%s" $outputDir "/mapped/" $my_toplevel ".spef"] redirect $filename { write_parasitics } } # QoR set filename [format "%s%s" $outputDir "/reports/qor.rep"] redirect $filename { report_qor } # Report Timing set filename [format "%s%s" $outputDir "/reports/reportpath.rep"] #redirect $filename { report_path_group } set filename [format "%s%s" $outputDir "/reports/report_clock.rep"] # redirect $filename { report_clock } set filename [format "%s%s" $outputDir "/reports/timing.rep"] redirect $filename { report_timing -capacitance -transition_time -nets -nworst 1 } set filename [format "%s%s" $outputDir "/reports/mindelay.rep"] redirect $filename { report_timing -capacitance -transition_time -nets -delay_type min -nworst 1 } set filename [format "%s%s" $outputDir "/reports/per_module_timing.rep"] redirect -append $filename { echo "\n\n\n//// Critical paths through Stall ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {Stall*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through ifu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through ieu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through lsu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {lsu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through ebu (ahblite) ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ebu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through mdu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through hzu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {hzu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through priv ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {priv/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through fpu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fpu/*} -nworst 1 } set filename [format "%s%s" $outputDir "/reports/mdu_timing.rep"] redirect -append $filename { echo "\n\n\n//// Critical paths through entire mdu ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through multiply unit ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.mul/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through redundant multiplier ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.mul/bigmul/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through ProdM (mul output) ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.ProdM} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through PP0E (mul partial product) ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.mul/PP0E} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical paths through divide unit ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.div/*} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through QuotM (div output) ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.QuotM} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through RemM (div output) ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.RemM} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through div/WNextE ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.div/WNextE} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through div/XQNextE ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.div/XQNextE} -nworst 1 } redirect -append $filename { echo "\n\n\n//// Critical path through div/DAbsBE ////\n\n\n" } redirect -append $filename { report_timing -capacitance -transition_time -nets -through {mdu/genblk1.div/DAbsBE} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/fpu_timing.rep"] # redirect $filename { echo "\n\n\n//// Critical paths through fma ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fpu/fpu.fma/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through fpdiv ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fpu/fpu.fdivsqrt/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through faddcvt ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fpu/fpu.faddcvt/*} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/ifu_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical path through PCF ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/PCF} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through PCNextF ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/PCNextF} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through FinalInstrRawF ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/FinalInstrRawF} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through InstrD ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/decomp/InstrD} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/stall_flush_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical path through StallD ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/StallD} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through StallE ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/StallE} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through StallM ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/StallM} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through StallW ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/StallW} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through FlushD ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/FlushD} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through FlushE ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/FlushE} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through FlushM ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/FlushM} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through FlushW ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/FlushW} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/ieu_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/R1D ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/R1D} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/R2D ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/R2D} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/SrcAE ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/SrcAE} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/ALUResultE ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/ALUResultE} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/WriteDataW ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/WriteDataW} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical path through datapath/ReadDataM ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ieu/dp/ReadDataM} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/fpu_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical paths through fma ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fma/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through fma1 ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fma/fma1/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through fma2 ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {postprocess/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through fpdiv ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {divsqrt/*} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through fcvt ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {fcvt/*} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/mmu_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical paths through immu/physicaladdress ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {ifu/immu/PhysicalAddress} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through dmmu/physicaladdress ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {lsu/dmmu/PhysicalAddress} -nworst 1 } # set filename [format "%s%s%s%s" $outputDir "/reports/priv_timing.rep"] # redirect -append $filename { echo "\n\n\n//// Critical paths through priv/TrapM ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {priv/TrapM} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through priv/CSRReadValM ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {priv/csr/CSRReadValM} -nworst 1 } # redirect -append $filename { echo "\n\n\n//// Critical paths through priv/CSRReadValW ////\n\n\n" } # redirect -append $filename { report_timing -capacitance -transition_time -nets -through {priv/CSRReadValW} -nworst 1 } set filename [format "%s%s" $outputDir "/reports/area.rep"] redirect $filename { report_area -hierarchy -nosplit -physical -designware} set filename [format "%s%s" $outputDir "/reports/cell.rep"] #redirect $filename { report_cell [get_cells -hier *] } # not too useful set filename [format "%s%s" $outputDir "/reports/power.rep"] redirect $filename { report_power -hierarchy -levels 1 } set filename [format "%s%s" $outputDir "/reports/constraint.rep"] redirect $filename { report_constraint } set filename [format "%s%s" $outputDir "/reports/hier.rep"] # redirect $filename { report_hierarchy } # end run clock and echo run time in minutes set t2 [clock seconds] set t [expr $t2 - $t1] echo [expr $t/60] quit