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reset branch predictor after each test.

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This commit is contained in:
Ross Thompson 2023-02-19 23:48:16 -06:00
parent 0d79c0cebe
commit 100e100835
4 changed files with 49 additions and 28 deletions
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8
sim/wally-batch.do
View File

@ -43,7 +43,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
vlog -lint -work wkdir/work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 vlog -lint -work wkdir/work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583
# start and run simulation # start and run simulation
vopt wkdir/work_${1}_${2}.testbench -work wkdir/work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -o testbenchopt vopt wkdir/work_${1}_${2}.testbench -work wkdir/work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -o testbenchopt
vsim -lib wkdir/work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3691 -fatal 7 vsim -lib wkdir/work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3691,13286 -fatal 7
run -all run -all
run -all run -all
@ -52,7 +52,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583
# start and run simulation # start and run simulation
vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -G NO_SPOOFING=1 -o testbenchopt vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -G NO_SPOOFING=1 -o testbenchopt
vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829 -fatal 7 vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829,13286 -fatal 7
#-- Run the Simulation #-- Run the Simulation
echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
@ -63,7 +63,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
exec ./slack-notifier/slack-notifier.py exec ./slack-notifier/slack-notifier.py
} elseif {$2 eq "ahb"} { } elseif {$2 eq "ahb"} {
vlog -lint -work wkdir/work_${1}_${2}_${3}_${4} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063,2596 +define+RAM_LATENCY=$3 +define+BURST_EN=$4 vlog -lint -work wkdir/work_${1}_${2}_${3}_${4} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063,2596,13286 +define+RAM_LATENCY=$3 +define+BURST_EN=$4
# start and run simulation # start and run simulation
# remove +acc flag for faster sim during regressions if there is no need to access internal signals # remove +acc flag for faster sim during regressions if there is no need to access internal signals
vopt wkdir/work_${1}_${2}_${3}_${4}.testbench -work wkdir/work_${1}_${2}_${3}_${4} -G TEST=$2 -o testbenchopt vopt wkdir/work_${1}_${2}_${3}_${4}.testbench -work wkdir/work_${1}_${2}_${3}_${4} -G TEST=$2 -o testbenchopt
@ -77,7 +77,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
run -all run -all
# power off -r /dut/core/* # power off -r /dut/core/*
} else { } else {
vlog -lint -work wkdir/work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063,2596 vlog -lint -work wkdir/work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063,2596,13286
# start and run simulation # start and run simulation
# remove +acc flag for faster sim during regressions if there is no need to access internal signals # remove +acc flag for faster sim during regressions if there is no need to access internal signals
vopt wkdir/work_${1}_${2}.testbench -work wkdir/work_${1}_${2} -G TEST=$2 -o testbenchopt vopt wkdir/work_${1}_${2}.testbench -work wkdir/work_${1}_${2} -G TEST=$2 -o testbenchopt

10
sim/wally.do
View File

@ -36,7 +36,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583
# start and run simulation # start and run simulation
vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -G NO_SPOOFING=0 -o testbenchopt vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=$4 -G INSTR_WAVEON=$5 -G CHECKPOINT=$6 -G NO_SPOOFING=0 -o testbenchopt
vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829 -fatal 7 vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829,13286 -fatal 7
#-- Run the Simulation #-- Run the Simulation
#run -all #run -all
@ -50,7 +50,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 vlog -lint -work work_${1}_${2} +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench-linux.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583
# start and run simulation # start and run simulation
vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=0 -G INSTR_WAVEON=0 -G CHECKPOINT=0 -G NO_SPOOFING=1 -o testbenchopt vopt +acc work_${1}_${2}.testbench -work work_${1}_${2} -G RISCV_DIR=$3 -G INSTR_LIMIT=0 -G INSTR_WAVEON=0 -G CHECKPOINT=0 -G NO_SPOOFING=1 -o testbenchopt
vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829 -fatal 7 vsim -lib work_${1}_${2} testbenchopt -suppress 8852,12070,3084,3829,13286 -fatal 7
#-- Run the Simulation #-- Run the Simulation
echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
@ -68,7 +68,7 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
} elseif {$2 eq "fpga"} { } elseif {$2 eq "fpga"} {
echo "hello" echo "hello"
vlog -work work +incdir+../config/fpga +incdir+../config/shared ../testbench/testbench.sv ../testbench/sdc/*.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv ../../fpga/sim/*.sv -suppress 8852,12070,3084,3829,2583,7063 vlog -work work +incdir+../config/fpga +incdir+../config/shared ../testbench/testbench.sv ../testbench/sdc/*.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv ../../fpga/sim/*.sv -suppress 8852,12070,3084,3829,2583,7063,13286
vopt +acc work.testbench -G TEST=$2 -G DEBUG=0 -o workopt vopt +acc work.testbench -G TEST=$2 -G DEBUG=0 -o workopt
vsim workopt +nowarn3829 -fatal 7 vsim workopt +nowarn3829 -fatal 7
@ -78,10 +78,10 @@ if {$2 eq "buildroot" || $2 eq "buildroot-checkpoint"} {
} else { } else {
if {$2 eq "ahb"} { if {$2 eq "ahb"} {
vlog +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063 +define+RAM_LATENCY=$3 +define+BURST_EN=$4 vlog +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583,13286 -suppress 7063 +define+RAM_LATENCY=$3 +define+BURST_EN=$4
} else { } else {
# *** modelsim won't take `PA_BITS, but will take other defines for the lengths of DTIM_RANGE and IROM_LEN. For now just live with the warnings. # *** modelsim won't take `PA_BITS, but will take other defines for the lengths of DTIM_RANGE and IROM_LEN. For now just live with the warnings.
vlog +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583 -suppress 7063 vlog +incdir+../config/$1 +incdir+../config/shared ../testbench/testbench.sv ../testbench/common/*.sv ../src/*/*.sv ../src/*/*/*.sv -suppress 2583,13286 -suppress 7063
} }
vopt +acc work.testbench -G TEST=$2 -G DEBUG=1 -o workopt vopt +acc work.testbench -G TEST=$2 -G DEBUG=1 -o workopt

25
sim/wave.do
View File

@ -95,13 +95,15 @@ add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/
add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/InstrClassE add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/InstrClassE
add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE add wave -noupdate -group Bpred -group {bp wrong} /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE
add wave -noupdate -group Bpred /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE add wave -noupdate -group Bpred /testbench/dut/core/ifu/bpred/bpred/BPPredWrongE
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCNextF add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/PCNextF
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/NextValidPCE add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/NextValidPCE
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCF add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/PCF
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCPlus2or4F add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/PCPlus2or4F
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/PCNext0F add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/BPPredPCF
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/PCNext1F add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/SelBPPredF
add wave -noupdate -group {PCNext Generation} /testbench/dut/core/ifu/BPPredWrongE add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/bpred/bpred/PCNext0F
add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/PCNext1F
add wave -noupdate -expand -group {PCNext Generation} /testbench/dut/core/ifu/BPPredWrongE
add wave -noupdate -group RegFile -expand /testbench/dut/core/ieu/dp/regf/rf add wave -noupdate -group RegFile -expand /testbench/dut/core/ieu/dp/regf/rf
add wave -noupdate -group RegFile /testbench/dut/core/ieu/dp/regf/a1 add wave -noupdate -group RegFile /testbench/dut/core/ieu/dp/regf/a1
add wave -noupdate -group RegFile /testbench/dut/core/ieu/dp/regf/a2 add wave -noupdate -group RegFile /testbench/dut/core/ieu/dp/regf/a2
@ -355,11 +357,6 @@ add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/pmach
add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMAInstrAccessFaultF add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMAInstrAccessFaultF
add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMALoadAccessFaultM add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMALoadAccessFaultM
add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMAStoreAmoAccessFaultM add wave -noupdate -group lsu -group pma /testbench/dut/core/lsu/dmmu/dmmu/PMAStoreAmoAccessFaultM
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/pmpchecker/PhysicalAddress
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/pmpchecker/ReadAccessM
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/pmpchecker/WriteAccessM
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/pmpchecker/PMPADDR_ARRAY_REGW
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/pmpchecker/PMPCFG_ARRAY_REGW
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPInstrAccessFaultF add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPInstrAccessFaultF
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPLoadAccessFaultM add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPLoadAccessFaultM
add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPStoreAmoAccessFaultM add wave -noupdate -group lsu -group pmp /testbench/dut/core/lsu/dmmu/dmmu/PMPStoreAmoAccessFaultM
@ -631,7 +628,7 @@ add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/Di
add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/BranchInstrF add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/BranchInstrF
add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/MatchNextX add wave -noupdate /testbench/dut/core/ifu/bpred/bpred/Predictor/DirPredictor/MatchNextX
TreeUpdate [SetDefaultTree] TreeUpdate [SetDefaultTree]
WaveRestoreCursors {{Cursor 2} {314596 ns} 1} {{Cursor 3} {314460 ns} 1} {{Cursor 4} {391801 ns} 1} {{Cursor 4} {1156601 ns} 1} {{Cursor 5} {161886 ns} 0} WaveRestoreCursors {{Cursor 2} {314596 ns} 1} {{Cursor 3} {314460 ns} 1} {{Cursor 4} {391801 ns} 1} {{Cursor 4} {1156601 ns} 1} {{Cursor 5} {394986 ns} 0}
quietly wave cursor active 5 quietly wave cursor active 5
configure wave -namecolwidth 250 configure wave -namecolwidth 250
configure wave -valuecolwidth 194 configure wave -valuecolwidth 194
@ -647,4 +644,4 @@ configure wave -griddelta 40
configure wave -timeline 0 configure wave -timeline 0
configure wave -timelineunits ns configure wave -timelineunits ns
update update
WaveRestoreZoom {161823 ns} {161929 ns} WaveRestoreZoom {394883 ns} {395051 ns}

34
testbench/testbench.sv
View File

@ -461,13 +461,36 @@ logic [3:0] dummy;
.start(DCacheFlushStart), .start(DCacheFlushStart),
.done(DCacheFlushDone)); .done(DCacheFlushDone));
// initialize the branch predictor
if (`BPRED_SUPPORTED == 1)
begin
genvar adrindex;
// initialize the branch predictor
if (`BPRED_SUPPORTED == 1) begin
integer adrindex;
always @(*) begin
if(reset) begin
for(adrindex = 0; adrindex < 2**`BTB_SIZE; adrindex++) begin
force dut.core.ifu.bpred.bpred.TargetPredictor.memory.mem[adrindex] = 0;
end
for(adrindex = 0; adrindex < 2**`BPRED_SIZE; adrindex++) begin
force dut.core.ifu.bpred.bpred.Predictor.DirPredictor.PHT.mem[adrindex] = 0;
end
#1;
for(adrindex = 0; adrindex < 2**`BTB_SIZE; adrindex++) begin
release dut.core.ifu.bpred.bpred.TargetPredictor.memory.mem[adrindex];
end
for(adrindex = 0; adrindex < 2**`BPRED_SIZE; adrindex++) begin
release dut.core.ifu.bpred.bpred.Predictor.DirPredictor.PHT.mem[adrindex];
end
end
end
end
if (`BPRED_SUPPORTED == 1) begin
/* -----\/----- EXCLUDED -----\/-----
genvar adrindex;
// Initializing all zeroes into the branch predictor memory. // Initializing all zeroes into the branch predictor memory.
for(adrindex = 0; adrindex < 2**10; adrindex++) begin for(adrindex = 0; adrindex < 2**`BTB_SIZE; adrindex++) begin
initial begin initial begin
force dut.core.ifu.bpred.bpred.TargetPredictor.memory.mem[adrindex] = 0; force dut.core.ifu.bpred.bpred.TargetPredictor.memory.mem[adrindex] = 0;
#1; #1;
@ -481,6 +504,7 @@ logic [3:0] dummy;
release dut.core.ifu.bpred.bpred.Predictor.DirPredictor.PHT.mem[adrindex]; release dut.core.ifu.bpred.bpred.Predictor.DirPredictor.PHT.mem[adrindex];
end end
end end
-----/\----- EXCLUDED -----/\----- */
if (`BPRED_LOGGER) begin if (`BPRED_LOGGER) begin
string direction; string direction;