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Fixed busybear by restoring InstrValidW needed by testbench

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This commit is contained in:
David Harris 2021-07-13 14:17:36 -04:00
parent 9af5cef65a
commit 516b710db6
3 changed files with 12 additions and 11 deletions
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12
wally-pipelined/regression/wave-all.do
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@ -152,7 +152,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/PCTargetE
add wave -noupdate -radix hexadecimal /testbench/dut/hart/CSRReadValW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/PrivilegedNextPCM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/MemRWM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/InstrMisalignedFaultM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/DataMisalignedM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/IllegalBaseInstrFaultD
@ -337,7 +337,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/Funct3M
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/ReadDataW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/CSRReadValW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/PCLinkW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/StallD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/FlushD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/FlushE
@ -397,7 +397,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/RegWriteM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/FlushW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/RegWriteW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/ResultSrcW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/CSRWritePendingDEM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/RegWriteD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/ieu/c/RegWriteE
@ -740,7 +740,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/CSRReadValW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/PrivilegedNextPCM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/RetM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/TrapM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/FRegWriteM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/LoadStallD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/PrivilegedM
@ -842,7 +842,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/uretM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/TimerIntM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/ExtIntM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/SwIntM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/FRegWriteM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/LoadStallD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/NextPrivilegeModeM
@ -972,7 +972,7 @@ add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/csrsr
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/csrsr/STATUS_UIE
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/clk
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/reset
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/InstrValidW
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/InstrValidM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/LoadStallD
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/CSRMWriteM
add wave -noupdate -radix hexadecimal /testbench/dut/hart/priv/csr/genblk1/counters/CSRAdrM

8
wally-pipelined/src/ieu/controller.sv
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@ -55,7 +55,7 @@ module controller(
output logic [1:0] AtomicM,
output logic [2:0] Funct3M,
output logic RegWriteM, // for Hazard Unit
output logic InstrValidM,
output logic InstrValidM, InstrValidW,
// Writeback stage control signals
input logic StallW, FlushW,
output logic RegWriteW, // for datapath and Hazard Unit
@ -213,9 +213,9 @@ module controller(
{RegWriteM, ResultSrcM, MemRWM, CSRReadM, CSRWriteM, PrivilegedM, Funct3M, AtomicM, InstrValidM});
// Writeback stage pipeline control register
flopenrc #(4) controlregW(clk, reset, FlushW, ~StallW,
{RegWriteM, ResultSrcM},
{RegWriteW, ResultSrcW});
flopenrc #(5) controlregW(clk, reset, FlushW, ~StallW,
{RegWriteM, ResultSrcM, InstrValidM},
{RegWriteW, ResultSrcW, InstrValidW});
assign CSRWritePendingDEM = CSRWriteD | CSRWriteE | CSRWriteM;
endmodule

3
wally-pipelined/src/ieu/ieu.sv
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@ -60,7 +60,7 @@ module ieu (
input logic [`XLEN-1:0] CSRReadValW, ReadDataW, MulDivResultW,
input logic FWriteIntW,
// input logic [`XLEN-1:0] PCLinkW,
output logic InstrValidM,
output logic InstrValidM,
// hazards
input logic StallD, StallE, StallM, StallW,
input logic FlushD, FlushE, FlushM, FlushW,
@ -79,6 +79,7 @@ module ieu (
logic [2:0] ResultSrcW;
logic TargetSrcE;
logic SCE;
logic InstrValidW;
// forwarding signals
logic [4:0] Rs1D, Rs2D, Rs1E, Rs2E, RdE, RdM, RdW;