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Always assert ready in core driver for ICache UVM testbench

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This works around a bug tracked in issue #850.
This commit is contained in:
Rupert Swarbrick 2020-05-11 12:41:28 +01:00 • committed by Rupert Swarbrick
parent 863fb56eb1
commit ff5c0c5823
1 changed files with 9 additions and 3 deletions
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6
dv/uvm/icache/dv/ibex_icache_core_agent/ibex_icache_core_driver.sv
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@ -112,10 +112,16 @@ class ibex_icache_core_driver
virtual task automatic read_insn(); virtual task automatic read_insn();
int unsigned delay; int unsigned delay;
// TODO: The icache sometimes currently requires the ready signal before it asserts valid. This
// is tracked by issue #850.
if (0) begin
// Maybe (1 time in 10) wait for a valid signal before even considering asserting ready. // Maybe (1 time in 10) wait for a valid signal before even considering asserting ready.
if ($urandom_range(9) == 0) if ($urandom_range(9) == 0)
wait (cfg.vif.driver_cb.valid); wait (cfg.vif.driver_cb.valid);
end
// Then pick how long we wait before asserting that we are ready. // Then pick how long we wait before asserting that we are ready.
// //
// TODO: Make this configurable and weight 0 more heavily. // TODO: Make this configurable and weight 0 more heavily.