From 4c8952de6a499928eeed9133d676a4c14a57215c Mon Sep 17 00:00:00 2001 From: Ross Thompson Date: Mon, 15 Mar 2021 12:39:44 -0500 Subject: [PATCH] Converted branch predictor preloads to use system verilog rather than modelsim's load command. --- .../busybear}/twoBitPredictor.txt | 0 .../config/busybear/wally-config.vh | 3 + .../config/coremark/twoBitPredictor.txt | 1024 +++++++++++++++++ .../config/coremark/wally-config.vh | 3 + .../config/rv32ic/twoBitPredictor.txt | 1024 +++++++++++++++++ wally-pipelined/config/rv32ic/wally-config.vh | 3 + .../config/rv64ic/twoBitPredictor.txt | 1024 +++++++++++++++++ wally-pipelined/config/rv64ic/wally-config.vh | 3 + .../config/rv64icfd/twoBitPredictor.txt | 1024 +++++++++++++++++ .../config/rv64icfd/wally-config.vh | 3 + .../regression/wally-busybear-batch.do | 9 +- wally-pipelined/regression/wally-busybear.do | 7 - wally-pipelined/regression/wally-coremark.do | 8 - .../regression/wally-peripherals.do | 7 - .../wally-pipelined-batch-parallel.do | 5 +- .../regression/wally-pipelined-batch.do | 10 +- .../regression/wally-pipelined-ross.do | 7 - wally-pipelined/regression/wally-pipelined.do | 7 - .../testbench/testbench-imperas.sv | 6 + 19 files changed, 4120 insertions(+), 57 deletions(-) rename wally-pipelined/{regression => config/busybear}/twoBitPredictor.txt (100%) create mode 100644 wally-pipelined/config/coremark/twoBitPredictor.txt create mode 100644 wally-pipelined/config/rv32ic/twoBitPredictor.txt create mode 100644 wally-pipelined/config/rv64ic/twoBitPredictor.txt create mode 100644 wally-pipelined/config/rv64icfd/twoBitPredictor.txt diff --git a/wally-pipelined/regression/twoBitPredictor.txt b/wally-pipelined/config/busybear/twoBitPredictor.txt similarity index 100% rename from wally-pipelined/regression/twoBitPredictor.txt rename to wally-pipelined/config/busybear/twoBitPredictor.txt diff --git a/wally-pipelined/config/busybear/wally-config.vh b/wally-pipelined/config/busybear/wally-config.vh index b01a2e30..dc4d6451 100644 --- a/wally-pipelined/config/busybear/wally-config.vh +++ b/wally-pipelined/config/busybear/wally-config.vh @@ -86,3 +86,6 @@ /* verilator lint_off STMTDLY */ /* verilator lint_off WIDTH */ + +`define TWO_BIT_PRELOAD "../config/busybear/twoBitPredictor.txt" +`define BTB_PRELOAD "../config/busybear/BTBPredictor.txt" diff --git a/wally-pipelined/config/coremark/twoBitPredictor.txt b/wally-pipelined/config/coremark/twoBitPredictor.txt new file mode 100644 index 00000000..ff57bd47 --- /dev/null +++ b/wally-pipelined/config/coremark/twoBitPredictor.txt @@ -0,0 +1,1024 @@ +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 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+00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 diff --git a/wally-pipelined/config/coremark/wally-config.vh b/wally-pipelined/config/coremark/wally-config.vh index 906373f9..8a0fdfbc 100644 --- a/wally-pipelined/config/coremark/wally-config.vh +++ b/wally-pipelined/config/coremark/wally-config.vh @@ -88,3 +88,6 @@ /* verilator lint_off WIDTH */ /* verilator lint_off ASSIGNDLY */ /* verilator lint_off PINCONNECTEMPTY */ + +`define TWO_BIT_PRELOAD "../config/coremark/twoBitPredictor.txt" +`define BTB_PRELOAD "../config/coremark/BTBPredictor.txt" diff --git a/wally-pipelined/config/rv32ic/twoBitPredictor.txt b/wally-pipelined/config/rv32ic/twoBitPredictor.txt new file mode 100644 index 00000000..ff57bd47 --- /dev/null +++ b/wally-pipelined/config/rv32ic/twoBitPredictor.txt @@ -0,0 +1,1024 @@ +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 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a/wally-pipelined/config/rv64ic/twoBitPredictor.txt b/wally-pipelined/config/rv64ic/twoBitPredictor.txt new file mode 100644 index 00000000..ff57bd47 --- /dev/null +++ b/wally-pipelined/config/rv64ic/twoBitPredictor.txt @@ -0,0 +1,1024 @@ +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 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/dev/null +++ b/wally-pipelined/config/rv64icfd/twoBitPredictor.txt @@ -0,0 +1,1024 @@ +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 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+00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 +00 diff --git a/wally-pipelined/config/rv64icfd/wally-config.vh b/wally-pipelined/config/rv64icfd/wally-config.vh index 9e8dccc9..2e685e6e 100644 --- a/wally-pipelined/config/rv64icfd/wally-config.vh +++ b/wally-pipelined/config/rv64icfd/wally-config.vh @@ -87,3 +87,6 @@ /* verilator lint_off WIDTH */ /* verilator lint_off ASSIGNDLY */ /* verilator lint_off PINCONNECTEMPTY */ + +`define TWO_BIT_PRELOAD "../config/rv64icfd/twoBitPredictor.txt" +`define BTB_PRELOAD "../config/rv64icfd/BTBPredictor.txt" diff --git a/wally-pipelined/regression/wally-busybear-batch.do b/wally-pipelined/regression/wally-busybear-batch.do index a9874973..036fed32 100644 --- a/wally-pipelined/regression/wally-busybear-batch.do +++ b/wally-pipelined/regression/wally-busybear-batch.do @@ -31,16 +31,9 @@ vlog +incdir+../config/busybear ../testbench/*.sv ../src/*/*.sv -suppress 2583 # start and run simulation # remove +acc flag for faster sim during regressions if there is no need to access internal signals -vopt +acc=+/testbench_busybear/dut/hart/ifu/bpred/DirPredictor/memory/memory +acc=+/testbench_busybear/dut/hart/ifu/bpred/TargetPredictor/memory/memory work.testbench_busybear -o workopt +vopt work.testbench_busybear -o workopt vsim workopt -suppress 8852,12070 -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} run -all quit diff --git a/wally-pipelined/regression/wally-busybear.do b/wally-pipelined/regression/wally-busybear.do index 42d04cb7..e4b75a08 100644 --- a/wally-pipelined/regression/wally-busybear.do +++ b/wally-pipelined/regression/wally-busybear.do @@ -34,13 +34,6 @@ vlog +incdir+../config/busybear ../testbench/*.sv ../src/*/*.sv -suppress 2583 vopt +acc work.testbench_busybear -o workopt vsim workopt -suppress 8852,12070 -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench_busybear/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} view wave diff --git a/wally-pipelined/regression/wally-coremark.do b/wally-pipelined/regression/wally-coremark.do index 5517fe11..056b34cb 100644 --- a/wally-pipelined/regression/wally-coremark.do +++ b/wally-pipelined/regression/wally-coremark.do @@ -35,14 +35,6 @@ vlog +incdir+../config/coremark ../testbench/testbench-coremark.sv ../src/*/*.sv vopt +acc work.testbench -o workopt vsim workopt -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} - view wave -- display input and output signals as hexidecimal values diff --git a/wally-pipelined/regression/wally-peripherals.do b/wally-pipelined/regression/wally-peripherals.do index c8472c88..ea860b95 100644 --- a/wally-pipelined/regression/wally-peripherals.do +++ b/wally-pipelined/regression/wally-peripherals.do @@ -38,13 +38,6 @@ switch $argc { vopt +acc work.testbench -o workopt vsim workopt -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} view wave do wally-peripherals-signals.do diff --git a/wally-pipelined/regression/wally-pipelined-batch-parallel.do b/wally-pipelined/regression/wally-pipelined-batch-parallel.do index c4202edb..8b5fa5c5 100644 --- a/wally-pipelined/regression/wally-pipelined-batch-parallel.do +++ b/wally-pipelined/regression/wally-pipelined-batch-parallel.do @@ -31,11 +31,8 @@ vlog +incdir+$1 ../testbench/testbench-imperas.sv ../testbench/function_radix.sv # start and run simulation # remove +acc flag for faster sim during regressions if there is no need to access internal signals -vopt +acc=+/testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory +acc=+/testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory work.testbench -o workopt +vopt work.testbench -o workopt vsim workopt -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory - run -all quit diff --git a/wally-pipelined/regression/wally-pipelined-batch.do b/wally-pipelined/regression/wally-pipelined-batch.do index 593e3018..040c03c5 100644 --- a/wally-pipelined/regression/wally-pipelined-batch.do +++ b/wally-pipelined/regression/wally-pipelined-batch.do @@ -35,16 +35,8 @@ switch $argc { } # start and run simulation # remove +acc flag for faster sim during regressions if there is no need to access internal signals -vopt +acc=+/testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory +acc=+/testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory work.testbench -o workopt +vopt work.testbench -o workopt vsim workopt -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} - run -all quit diff --git a/wally-pipelined/regression/wally-pipelined-ross.do b/wally-pipelined/regression/wally-pipelined-ross.do index d1fc7eea..9ea5c2eb 100644 --- a/wally-pipelined/regression/wally-pipelined-ross.do +++ b/wally-pipelined/regression/wally-pipelined-ross.do @@ -38,13 +38,6 @@ switch $argc { vopt +acc -gDEBUG=1 work.testbench -o workopt vsim workopt -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} do wave.do add log -r /* diff --git a/wally-pipelined/regression/wally-pipelined.do b/wally-pipelined/regression/wally-pipelined.do index 49e349ed..5f3b0d71 100644 --- a/wally-pipelined/regression/wally-pipelined.do +++ b/wally-pipelined/regression/wally-pipelined.do @@ -38,13 +38,6 @@ switch $argc { vopt +acc work.testbench -o workopt vsim workopt -# load the branch predictors with known data. The value of the data is not important for function, but -# is important for perventing pessimistic x propagation. -mem load -infile twoBitPredictor.txt -format bin testbench/dut/hart/ifu/bpred/DirPredictor/memory/memory -switch $argc { - 0 {mem load -infile ../config/rv64ic/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} - 1 {mem load -infile ../config/$1/BTBPredictor.txt -format bin testbench/dut/hart/ifu/bpred/TargetPredictor/memory/memory} -} view wave diff --git a/wally-pipelined/testbench/testbench-imperas.sv b/wally-pipelined/testbench/testbench-imperas.sv index e55fa1b7..3c9c4cc9 100644 --- a/wally-pipelined/testbench/testbench-imperas.sv +++ b/wally-pipelined/testbench/testbench-imperas.sv @@ -471,6 +471,12 @@ string tests32i[] = { .ProgramAddrMapFile(ProgramAddrMapFile), .ProgramLabelMapFile(ProgramLabelMapFile)); end + + // initialize the branch predictor + initial begin + $readmemb(`TWO_BIT_PRELOAD, dut.hart.ifu.bpred.DirPredictor.memory.memory); + $readmemb(`BTB_PRELOAD, dut.hart.ifu.bpred.TargetPredictor.memory.memory); + end endmodule