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pmp coverage

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Divya2030 2024-05-02 11:53:32 -07:00
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testbench/coverage/test_pmp_coverage.sv Normal file
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module test_pmp_coverage import cvw::*; #(parameter cvw_t P) (input clk);
// Ensure the covergroup is defined correctly
covergroup cg_priv_mode @(posedge clk);
coverpoint dut.core.ifu.PrivilegeModeW {
bins user = {2'b00};
bins superv = {2'b01};
bins hyperv = {2'b10};
bins mach = {2'b11};
}
endgroup
covergroup cg_PMPConfig @(posedge clk);
coverpoint dut.core.ifu.PMPCFG_ARRAY_REGW[0][0] {
bins ones = {1};
bins zeros = {0};
}
endgroup
function bit [1:0] getPMPConfigSlice(int index);
return dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[index][4:3];
endfunction
//if (P.PMP_ENTRIES > 0) begin : pmp
covergroup cg_pmpcfg_mode @(posedge clk);
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[0][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[1][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[2][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[3][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[4][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[5][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[6][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
coverpoint dut.core.ifu.immu.immu.PMPCFG_ARRAY_REGW[7][4:3] {
bins off = {2'b00};
bins tor = {2'b01};
bins na4 = {2'b10};
bins napot = {2'b11};
}
endgroup
//end
// Ensure that the instantiation and sampling of covergroups are within the correct procedural context
initial begin
cg_priv_mode privmodeCG = new(); // Instantiate the privilege mode covergroup
cg_PMPConfig pmpconfigCG = new(); // Instantiate the PMP config covergroup
cg_pmpcfg_mode pmpcfgmodeCG = new();
forever begin
@(posedge clk) begin
privmodeCG.sample(); // Sample the privilege mode covergroup
pmpconfigCG.sample(); // Sample the PMP config covergroupi
pmpcfgmodeCG.sample();
end
end
end
endmodule