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[dv] Fix DUT probe IF paths

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- The testbench probes signals that are unqualified by instr_valid
- This causes events to trigger due to instructions that are not
  actually executed, leading to false timeout failures
- Note this fix alone doesn't eliminate such failures due to another
  issue which will be addressed separately

Signed-off-by: Tom Roberts <tomroberts@lowrisc.org>
This commit is contained in:
Tom Roberts 2020-06-15 09:25:23 +01:00 • committed by Tom Roberts
parent b060d37d8d
commit a2194a723b
1 changed files with 6 additions and 6 deletions
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12
dv/uvm/core_ibex/tb/core_ibex_tb_top.sv
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@ -121,12 +121,12 @@ module core_ibex_tb_top;
assign irq_vif.clock = clk;
assign irq_vif.reset = ~rst_n;
// Dut_if interface connections
assign dut_if.ecall = dut.u_ibex_core.id_stage_i.ecall_insn_dec;
assign dut_if.wfi = dut.u_ibex_core.id_stage_i.wfi_insn_dec;
assign dut_if.ebreak = dut.u_ibex_core.id_stage_i.ebrk_insn;
assign dut_if.illegal_instr = dut.u_ibex_core.id_stage_i.illegal_insn_dec;
assign dut_if.dret = dut.u_ibex_core.id_stage_i.dret_insn_dec;
assign dut_if.mret = dut.u_ibex_core.id_stage_i.mret_insn_dec;
assign dut_if.ecall = dut.u_ibex_core.id_stage_i.controller_i.ecall_insn;
assign dut_if.wfi = dut.u_ibex_core.id_stage_i.controller_i.wfi_insn;
assign dut_if.ebreak = dut.u_ibex_core.id_stage_i.controller_i.ebrk_insn;
assign dut_if.illegal_instr = dut.u_ibex_core.id_stage_i.controller_i.illegal_insn_d;
assign dut_if.dret = dut.u_ibex_core.id_stage_i.controller_i.dret_insn;
assign dut_if.mret = dut.u_ibex_core.id_stage_i.controller_i.mret_insn;
assign dut_if.reset = ~rst_n;
assign dut_if.priv_mode = dut.u_ibex_core.priv_mode_id;
// CSR interface connections