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make testbench successfully deactivate TimerIntM so as to create a nice pulse

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bbracker 2021-09-07 15:36:47 -04:00
parent 28fed18421
commit b3f00f2682
1 changed files with 61 additions and 67 deletions
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126
wally-pipelined/testbench/testbench-linux.sv
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@ -126,6 +126,7 @@ module testbench();
string ExpectedCSRArrayW[10:0]; string ExpectedCSRArrayW[10:0];
logic [`XLEN-1:0] ExpectedCSRArrayValueW[10:0]; logic [`XLEN-1:0] ExpectedCSRArrayValueW[10:0];
logic [`XLEN-1:0] ExpectedIntType; logic [`XLEN-1:0] ExpectedIntType;
logic forcedInterrupt;
integer NumCSRMIndex; integer NumCSRMIndex;
integer NumCSRWIndex; integer NumCSRWIndex;
integer NumCSRPostWIndex; integer NumCSRPostWIndex;
@ -207,61 +208,59 @@ module testbench();
#2; #2;
while(TokenIndex > MarkerIndex) begin while(TokenIndex > MarkerIndex) begin
// parse the GPR // parse the GPR
if (ExpectedTokens[MarkerIndex] == "GPR") begin if (ExpectedTokens[MarkerIndex] == "GPR") begin
RegWriteM = ExpectedTokens[MarkerIndex]; RegWriteM = ExpectedTokens[MarkerIndex];
matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%d", ExpectedRegAdrM); matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%d", ExpectedRegAdrM);
matchCount = $sscanf(ExpectedTokens[MarkerIndex+2], "%x", ExpectedRegValueM); matchCount = $sscanf(ExpectedTokens[MarkerIndex+2], "%x", ExpectedRegValueM);
MarkerIndex += 3; MarkerIndex += 3;
// parse memory address, read data, and/or write data // parse memory address, read data, and/or write data
end else if(ExpectedTokens[MarkerIndex].substr(0, 2) == "Mem") begin end else if(ExpectedTokens[MarkerIndex].substr(0, 2) == "Mem") begin
MemOpM = ExpectedTokens[MarkerIndex]; MemOpM = ExpectedTokens[MarkerIndex];
matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%x", ExpectedMemAdrM); matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%x", ExpectedMemAdrM);
matchCount = $sscanf(ExpectedTokens[MarkerIndex+2], "%x", ExpectedMemWriteDataM); matchCount = $sscanf(ExpectedTokens[MarkerIndex+2], "%x", ExpectedMemWriteDataM);
matchCount = $sscanf(ExpectedTokens[MarkerIndex+3], "%x", ExpectedMemReadDataM); matchCount = $sscanf(ExpectedTokens[MarkerIndex+3], "%x", ExpectedMemReadDataM);
MarkerIndex += 4; MarkerIndex += 4;
// parse CSRs, because there are 1 or more CSRs after the CSR token // parse CSRs, because there are 1 or more CSRs after the CSR token
// we check if the CSR token or the number of CSRs is greater than 0. // we check if the CSR token or the number of CSRs is greater than 0.
// if so then we want to parse for a CSR. // if so then we want to parse for a CSR.
end else if(ExpectedTokens[MarkerIndex] == "CSR" || NumCSRM > 0) begin end else if(ExpectedTokens[MarkerIndex] == "CSR" || NumCSRM > 0) begin
if(ExpectedTokens[MarkerIndex] == "CSR") begin if(ExpectedTokens[MarkerIndex] == "CSR") begin
// all additional CSR's won't have this token. // all additional CSR's won't have this token.
MarkerIndex++; MarkerIndex++;
end end
matchCount = $sscanf(ExpectedTokens[MarkerIndex], "%s", ExpectedCSRArrayM[NumCSRM]); matchCount = $sscanf(ExpectedTokens[MarkerIndex], "%s", ExpectedCSRArrayM[NumCSRM]);
matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%x", ExpectedCSRArrayValueM[NumCSRM]); matchCount = $sscanf(ExpectedTokens[MarkerIndex+1], "%x", ExpectedCSRArrayValueM[NumCSRM]);
MarkerIndex += 2; MarkerIndex += 2;
// if we get an xcause with the interrupt bit set we must generate an interrupt as interrupts // if we get an xcause with the interrupt bit set we must generate an interrupt as interrupts
// are imprecise. Forcing the trap at this time will allow wally to track what qemu does. // are imprecise. Forcing the trap at this time will allow wally to track what qemu does.
// the msb of xcause will be set. // the msb of xcause will be set.
// bits 1:0 select mode; 0 = user, 1 = superviser, 3 = machine // bits 1:0 select mode; 0 = user, 1 = superviser, 3 = machine
// bits 3:2 select the type of interrupt, 0 = software, 1 = timer, 2 = external // bits 3:2 select the type of interrupt, 0 = software, 1 = timer, 2 = external
if(ExpectedCSRArrayM[NumCSRM].substr(1, 5) == "cause" && (ExpectedCSRArrayValueM[NumCSRM][`XLEN-1] == 1'b1)) begin if(ExpectedCSRArrayM[NumCSRM].substr(1, 5) == "cause" && (ExpectedCSRArrayValueM[NumCSRM][`XLEN-1] == 1'b1)) begin
//what type? //what type?
ExpectedIntType = ExpectedCSRArrayValueM[NumCSRM] & 64'h0000_000C; ExpectedIntType = ExpectedCSRArrayValueM[NumCSRM] & 64'h0000_000C;
$display("%tns, %d instrs: CSR = %s. Forcing interrupt of cause = %x", $time, InstrCountW, ExpectedCSRArrayM[NumCSRM], ExpectedCSRArrayValueM[NumCSRM]); $display("%tns, %d instrs: CSR = %s. Forcing interrupt of cause = %x", $time, InstrCountW, ExpectedCSRArrayM[NumCSRM], ExpectedCSRArrayValueM[NumCSRM]);
forcedInterrupt = 1;
if(ExpectedIntType == 0) begin if(ExpectedIntType == 0) begin
force dut.hart.priv.SwIntM = 1'b1; force dut.hart.priv.SwIntM = 1'b1;
$display("Force SwIntM"); $display("Force SwIntM");
end else if(ExpectedIntType == 4) begin
force dut.hart.priv.TimerIntM = 1'b1;
$display("Force TimeIntM");
end else if(ExpectedIntType == 8) begin
force dut.hart.priv.ExtIntM = 1'b1;
$display("Force ExtIntM");
end else forcedInterrupt = 0;
end
NumCSRM++;
end end
else if(ExpectedIntType == 4) begin
force dut.hart.priv.TimerIntM = 1'b1;
$display("Force TimeIntM");
end
else if(ExpectedIntType == 8) begin
force dut.hart.priv.ExtIntM = 1'b1;
$display("Force ExtIntM");
end
end
NumCSRM++;
end
end end
// override on special conditions // override on special conditions
if (ExpectedMemAdrM == 'h10000005) begin if (ExpectedMemAdrM == 'h10000005) begin
@ -338,24 +337,19 @@ module testbench();
end end
// force interrupts to 0 // force interrupts to 0
for(NumCSRMIndex = 0; NumCSRMIndex < NumCSRM; NumCSRMIndex++) begin if (forcedInterrupt) begin
if(ExpectedCSRArrayM[NumCSRMIndex].substr(1, 5) == "cause" && (ExpectedCSRArrayValueM[NumCSRMIndex][`XLEN-1] == 1'b1)) begin forcedInterrupt = 0;
//what type? if(ExpectedIntType == 0) begin
ExpectedIntType = ExpectedCSRArrayValueM[NumCSRM] & 64'h0000_000C; force dut.hart.priv.SwIntM = 1'b0;
$display("%tns, %d instrs: CSR = %s. Forcing interrupt of cause = %x back to 0", $time, InstrCountW, ExpectedCSRArrayM[NumCSRM], ExpectedCSRArrayValueM[NumCSRM]); $display("Force SwIntM");
end
if(ExpectedIntType == 0) begin else if(ExpectedIntType == 4) begin
force dut.hart.priv.SwIntM = 1'b0; force dut.hart.priv.TimerIntM = 1'b0;
$display("Force SwIntM"); $display("Force TimeIntM");
end end
else if(ExpectedIntType == 4) begin else if(ExpectedIntType == 8) begin
force dut.hart.priv.TimerIntM = 1'b0; force dut.hart.priv.ExtIntM = 1'b0;
$display("Force TimeIntM"); $display("Force ExtIntM");
end
else if(ExpectedIntType == 8) begin
force dut.hart.priv.ExtIntM = 1'b0;
$display("Force ExtIntM");
end
end end
end end
end end