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Fixed the multliple reads of the same preload memory file.

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This commit is contained in:
Ross Thompson 2023-06-13 13:52:02 -05:00
parent df62f3964c
commit 9869b26556
1 changed files with 29 additions and 182 deletions
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211
testbench/testbench.sv
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@ -182,8 +182,7 @@ module testbench;
logic ResetCntRst;
string signame, memfilename, pathname, objdumpfilename, adrstr, outputfile;
integer outputFilePointer;
string signame, memfilename, pathname;
integer begin_signature_addr;
assign ResetThreshold = 3'd5;
@ -214,7 +213,6 @@ module testbench;
STATE_TESTBENCH_RESET: begin
NextState = STATE_INIT_TEST;
test = 1;
ResetMem = 1; // only need to reset the memories once. Assumes the tests don't write xs to memory.
reset_ext = 1;
end
STATE_INIT_TEST: begin
@ -258,6 +256,8 @@ module testbench;
STATE_RESET_MEMORIES: begin
NextState = STATE_LOAD_MEMORIES;
reset_ext = 1;
// this initialization is very expensive, only do it for coremark.
if (TEST == "coremark") ResetMem = 1;
end
STATE_LOAD_MEMORIES: begin
NextState = STATE_RESET_TEST;
@ -295,6 +295,11 @@ module testbench;
end
STATE_VALIDATE: begin
NextState = STATE_INIT_TEST;
if (TEST == "coremark")
if (dut.core.priv.priv.EcallFaultM) begin
$display("Benchmark: coremark is done.");
$stop;
end
if (!begin_signature_addr)
$display("begin_signature addr not found in %s", ProgramLabelMapFile);
else begin
@ -350,20 +355,22 @@ module testbench;
////////////////////////////////////////////////////////////////////////////////
// load memories with program image
////////////////////////////////////////////////////////////////////////////////
always @(posedge LoadMem) begin
if (P.FPGA) begin
string romfilename, sdcfilename;
romfilename = {"../tests/custom/fpga-test-sdc/bin/fpga-test-sdc.memfile"};
sdcfilename = {"../testbench/sdc/ramdisk2.hex"};
$readmemh(romfilename, dut.uncore.uncore.bootrom.bootrom.memory.ROM);
$readmemh(sdcfilename, sdcard.sdcard.FLASHmem);
// shorten sdc timers for simulation
dut.uncore.uncore.sdc.SDC.LimitTimers = 1;
end
else if (P.IROM_SUPPORTED) $readmemh(memfilename, dut.core.ifu.irom.irom.rom.ROM);
else if (P.BUS_SUPPORTED) $readmemh(memfilename, dut.uncore.uncore.ram.ram.memory.RAM);
if (P.DTIM_SUPPORTED) $readmemh(memfilename, dut.core.lsu.dtim.dtim.ram.RAM);
$display("Read memfile %s", memfilename);
always @(posedge clk) begin
if (LoadMem) begin
if (P.FPGA) begin
string romfilename, sdcfilename;
romfilename = {"../tests/custom/fpga-test-sdc/bin/fpga-test-sdc.memfile"};
sdcfilename = {"../testbench/sdc/ramdisk2.hex"};
$readmemh(romfilename, dut.uncore.uncore.bootrom.bootrom.memory.ROM);
$readmemh(sdcfilename, sdcard.sdcard.FLASHmem);
// shorten sdc timers for simulation
dut.uncore.uncore.sdc.SDC.LimitTimers = 1;
end
else if (P.IROM_SUPPORTED) $readmemh(memfilename, dut.core.ifu.irom.irom.rom.ROM);
else if (P.BUS_SUPPORTED) $readmemh(memfilename, dut.uncore.uncore.ram.ram.memory.RAM);
if (P.DTIM_SUPPORTED) $readmemh(memfilename, dut.core.lsu.dtim.dtim.ram.RAM);
$display("Read memfile %s", memfilename);
end
end
@ -382,8 +389,6 @@ module testbench;
logic HREADY;
logic HSELEXT;
logic InitializingMemories;
integer ResetCountOld, ResetThresholdOld;
logic InReset;
logic BeginSample;
@ -428,70 +433,6 @@ module testbench;
dut.core.ifu.InstrM, InstrW,
InstrFName, InstrDName, InstrEName, InstrMName, InstrWName);
// initialize tests
localparam MemStartAddr = 0;
localparam MemEndAddr = P.UNCORE_RAM_RANGE>>1+(P.XLEN/32);
initial
begin
ResetCountOld = 0;
ResetThresholdOld = 2;
InReset = 1;
//test = 1;
//totalerrors = 0;
testadr = 0;
testadrNoBase = 0;
// riscof tests have a different signature, tests[0] == "1" refers to RiscvArchTests
// and tests[0] == "2" refers to WallyRiscvArchTests
//riscofTest = tests[0] == "1" | tests[0] == "2";
// fill memory with defined values to reduce Xs in simulation
// Quick note the memory will need to be initialized. The C library does not
// guarantee the initialized reads. For example a strcmp can read 6 byte
// strings, but uses a load double to read them in. If the last 2 bytes are
// not initialized the compare results in an 'x' which propagates through
// the design.
/* -----\/----- EXCLUDED -----\/-----
if (TEST == "coremark")
for (i=MemStartAddr; i<MemEndAddr; i = i+1)
dut.uncore.uncore.ram.ram.memory.RAM[i] = 64'h0;
// read test vectors into memory
pathname = tvpaths[tests[0].atoi()];
/-* if (tests[0] == P.IMPERASTEST)
pathname = tvpaths[0];
else pathname = tvpaths[1]; *-/
if (riscofTest) memfilename = {pathname, tests[test], "/ref/ref.elf.memfile"};
else memfilename = {pathname, tests[test], ".elf.memfile"};
if (P.FPGA) begin
string romfilename, sdcfilename;
romfilename = {"../tests/custom/fpga-test-sdc/bin/fpga-test-sdc.memfile"};
sdcfilename = {"../testbench/sdc/ramdisk2.hex"};
$readmemh(romfilename, dut.uncore.uncore.bootrom.bootrom.memory.ROM);
$readmemh(sdcfilename, sdcard.sdcard.FLASHmem);
// force sdc timers
dut.uncore.uncore.sdc.SDC.LimitTimers = 1;
end else begin
if (P.IROM_SUPPORTED) $readmemh(memfilename, dut.core.ifu.irom.irom.rom.ROM);
else if (P.BUS_SUPPORTED) $readmemh(memfilename, dut.uncore.uncore.ram.ram.memory.RAM);
if (P.DTIM_SUPPORTED) $readmemh(memfilename, dut.core.lsu.dtim.dtim.ram.RAM);
end
if (riscofTest) begin
ProgramAddrMapFile = {pathname, tests[test], "/ref/ref.elf.objdump.addr"};
ProgramLabelMapFile = {pathname, tests[test], "/ref/ref.elf.objdump.lab"};
end else begin
ProgramAddrMapFile = {pathname, tests[test], ".elf.objdump.addr"};
ProgramLabelMapFile = {pathname, tests[test], ".elf.objdump.lab"};
end
// declare memory labels that interest us, the updateProgramAddrLabelArray task will find
// the addr of each label and fill the array. To expand, add more elements to this array
// and initialize them to zero (also initilaize them to zero at the start of the next test)
if(!P.FPGA) begin
updateProgramAddrLabelArray(ProgramAddrMapFile, ProgramLabelMapFile, ProgramAddrLabelArray);
$display("Read memfile %s", memfilename);
end
-----/\----- EXCLUDED -----/\----- */
end
// generate clock to sequence tests
always
@ -501,24 +442,13 @@ module testbench;
end
// check results
//assign reset_ext = InReset;
// *** Probably need to take some of this code about embench and transfer to new fsm.
/* -----\/----- EXCLUDED -----\/-----
always @(negedge clk)
begin
InitializingMemories = 0;
if(InReset == 1) begin
// once the test inidicates it's done we need to immediately hold reset for a number of cycles.
if(ResetCountOld < ResetThresholdOld) ResetCountOld = ResetCountOld + 1;
else begin // hit reset threshold so we remove reset.
InReset = 0;
ResetCountOld = 0;
end
end else begin
if (TEST == "coremark")
if (dut.core.priv.priv.EcallFaultM) begin
$display("Benchmark: coremark is done.");
$stop;
end
// Termination condition (i.e. we finished running current test)
if (DCacheFlushDone) begin
InReset = 1;
@ -546,94 +476,11 @@ module testbench;
end else begin
// for tests with no self checking mechanism, read .signature.output file and compare to check for errors
// clear signature to prevent contamination from previous tests
/* -----\/----- EXCLUDED -----\/-----
for(i=0; i<SIGNATURESIZE; i=i+1) begin
sig32[i] = 'bx;
end
if (riscofTest) signame = {pathname, tests[test], "/ref/Reference-sail_c_simulator.signature"};
else signame = {pathname, tests[test], ".signature.output"};
// read signature, reformat in 64 bits if necessary
$readmemh(signame, sig32);
i = 0;
while (i < SIGNATURESIZE) begin
if (P.XLEN == 32) begin
signature[i] = sig32[i];
i = i+1;
end else begin
signature[i/2] = {sig32[i+1], sig32[i]};
i = i + 2;
end
if (i >= 4 & sig32[i-4] === 'bx) begin
if (i == 4) begin
i = SIGNATURESIZE+1; // flag empty file
$display(" Error: empty test file");
end else i = SIGNATURESIZE; // skip over the rest of the x's for efficiency
end
end
// Check errors
errors = (i == SIGNATURESIZE+1); // error if file is empty
i = 0;
/-* verilator lint_off INFINITELOOP *-/
while (signature[i] !== 'bx) begin
logic [P.XLEN-1:0] sig;
if (P.DTIM_SUPPORTED) sig = dut.core.lsu.dtim.dtim.ram.RAM[testadrNoBase+i];
else if (P.UNCORE_RAM_SUPPORTED) sig = dut.uncore.uncore.ram.ram.memory.RAM[testadrNoBase+i];
//$display("signature[%h] = %h sig = %h", i, signature[i], sig);
if (signature[i] !== sig & (signature[i] !== DCacheFlushFSM.ShadowRAM[testadr+i])) begin
errors = errors+1;
$display(" Error on test %s result %d: adr = %h sim (D$) %h sim (DTIM_SUPPORTED) = %h, signature = %h",
tests[test], i, (testadr+i)*(P.XLEN/8), DCacheFlushFSM.ShadowRAM[testadr+i], sig, signature[i]);
$stop; //-***debug
end
i = i + 1;
end
/-* verilator lint_on INFINITELOOP *-/
if (errors == 0) begin
$display("%s succeeded. Brilliant!!!", tests[test]);
end else begin
$display("%s failed with %d errors. :(", tests[test], errors);
//totalerrors = totalerrors+1;
end
-----/\----- EXCLUDED -----/\----- */
// end
// move onto the next test, check to see if we're done
/* -----\/----- EXCLUDED -----\/-----
test = test + 1;
if (test == tests.size()) begin
if (totalerrors == 0) $display("SUCCESS! All tests ran without failures.");
else $display("FAIL: %d test programs had errors", totalerrors);
$stop;
end else begin
InitializingMemories = 1;
-----/\----- EXCLUDED -----/\----- */
// If there are still additional tests to run, read in information for the next test
//pathname = tvpaths[tests[0]];
/* -----\/----- EXCLUDED -----\/-----
if (riscofTest) memfilename = {pathname, tests[test], "/ref/ref.elf.memfile"};
else memfilename = {pathname, tests[test], ".elf.memfile"};
//$readmemh(memfilename, dut.uncore.uncore.ram.ram.memory.RAM);
if (P.IROM_SUPPORTED) $readmemh(memfilename, dut.core.ifu.irom.irom.rom.ROM);
else if (P.UNCORE_RAM_SUPPORTED) $readmemh(memfilename, dut.uncore.uncore.ram.ram.memory.RAM);
if (P.DTIM_SUPPORTED) $readmemh(memfilename, dut.core.lsu.dtim.dtim.ram.RAM);
if (riscofTest) begin
ProgramAddrMapFile = {pathname, tests[test], "/ref/ref.elf.objdump.addr"};
ProgramLabelMapFile = {pathname, tests[test], "/ref/ref.elf.objdump.lab"};
end else begin
ProgramAddrMapFile = {pathname, tests[test], ".elf.objdump.addr"};
ProgramLabelMapFile = {pathname, tests[test], ".elf.objdump.lab"};
end
ProgramAddrLabelArray = '{ "begin_signature" : 0, "tohost" : 0 };
if(!P.FPGA) begin
updateProgramAddrLabelArray(ProgramAddrMapFile, ProgramLabelMapFile, ProgramAddrLabelArray);
$display("Read memfile %s", memfilename);
end
-----/\----- EXCLUDED -----/\----- */
end
end // if (DCacheFlushDone)
end
end // always @ (negedge clk)
-----/\----- EXCLUDED -----/\----- */
if(`PrintHPMCounters & P.ZICOUNTERS_SUPPORTED) begin : HPMCSample
@ -695,7 +542,7 @@ module testbench;
end else begin
// default start condiction is reset
// default end condiction is end of test (DCacheFlushDone)
assign StartSampleFirst = InReset;
assign StartSampleFirst = reset;
flopr #(1) StartSampleReg(clk, reset, StartSampleFirst, StartSampleDelayed);
assign StartSample = StartSampleFirst & ~ StartSampleDelayed;
assign EndSample = DCacheFlushStart & ~DCacheFlushDone;