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[dv] Add known failure detection to riscv_debug_ebreakmu_test

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This commit is contained in:
Greg Chadwick 2021-03-26 14:28:21 +00:00
parent 25cd6600c6
commit 5504876110
1 changed files with 40 additions and 12 deletions
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52
dv/uvm/core_ibex/tests/core_ibex_test_lib.sv
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@ -1055,19 +1055,47 @@ class core_ibex_debug_ebreakmu_test extends core_ibex_directed_test;
`uvm_component_utils(core_ibex_debug_ebreakmu_test)
`uvm_component_new
bit seen_ebreak;
virtual task send_stimulus();
seen_ebreak = 0;
fork
begin : detect_ebreak
wait (dut_vif.dut_cb.ebreak === 1'b1);
seen_ebreak = 1;
end
begin : run_stimulus
core_ibex_directed_test::send_stimulus();
end
join
endtask
virtual task check_stimulus();
// send a single debug request after core initialization to configure dcsr
vseq.start_debug_single_seq();
check_next_core_status(IN_DEBUG_MODE,
"Core did not enter debug mode after debug_req stimulus", 2000);
check_priv_mode(PRIV_LVL_M);
// Read dcsr and verify the appropriate ebreak(m/s/u) bit has been set based on the prv field,
// as well as the cause field
wait_for_csr_write(CSR_DCSR, 500);
check_dcsr_prv(init_operating_mode);
check_dcsr_ebreak();
check_dcsr_cause(DBG_CAUSE_HALTREQ);
wait_ret("dret", 5000);
fork begin
fork
begin : dbg_setup
// send a single debug request after core initialization to configure dcsr
vseq.start_debug_single_seq();
check_next_core_status(IN_DEBUG_MODE,
"Core did not enter debug mode after debug_req stimulus", 2000);
check_priv_mode(PRIV_LVL_M);
// Read dcsr and verify the appropriate ebreak(m/s/u) bit has been set based on the prv field,
// as well as the cause field
wait_for_csr_write(CSR_DCSR, 500);
check_dcsr_prv(init_operating_mode);
check_dcsr_ebreak();
check_dcsr_cause(DBG_CAUSE_HALTREQ);
wait_ret("dret", 5000);
end
begin : detect_ebreak
wait (seen_ebreak == 1);
`uvm_fatal(`gfn, {"EBreak seen whilst doing initial debug initialization, KNOWN FAILURE ",
"SEE https://github.com/lowRISC/ibex/issues/1313"})
end
join_any
disable fork;
end join
forever begin
wait (dut_vif.dut_cb.ebreak === 1'b1);
check_next_core_status(IN_DEBUG_MODE,