[dv/alert] temp support/hack for top_level async alert
This PR provides a temp solution for async alert in top_level. This PR
adds a two clock cycles delay to match design behavior for async alerts.
This PR only tries unblock CI failures. More comprehensive support will
be implemented in a separate PR.
Signed-off-by: Cindy Chen <chencindy@google.com>
diff --git a/hw/dv/sv/alert_esc_agent/alert_esc_agent_cfg.sv b/hw/dv/sv/alert_esc_agent/alert_esc_agent_cfg.sv
index 1df3056..c06d8b1 100644
--- a/hw/dv/sv/alert_esc_agent/alert_esc_agent_cfg.sv
+++ b/hw/dv/sv/alert_esc_agent/alert_esc_agent_cfg.sv
@@ -10,6 +10,7 @@
virtual alert_esc_if vif;
virtual alert_esc_probe_if probe_vif;
bit is_alert = 1;
+ bit is_async = 0;
// sender mode
bit use_seq_item_alert_delay;
diff --git a/hw/dv/sv/alert_esc_agent/alert_monitor.sv b/hw/dv/sv/alert_esc_agent/alert_monitor.sv
index 9243c0d..ffc156a 100644
--- a/hw/dv/sv/alert_esc_agent/alert_monitor.sv
+++ b/hw/dv/sv/alert_esc_agent/alert_monitor.sv
@@ -90,6 +90,11 @@
bit alert_p;
forever @(cfg.vif.monitor_cb) begin
if (!alert_p && is_valid_alert() && !under_ping_rsp) begin
+ // TODO: temp solution for alert async mode - it adds another diff_reg to pass the
+ // alert_trigger signal. Needs more testing on different clk freqs.
+ if (cfg.is_async) begin
+ repeat (2) @(cfg.vif.monitor_cb);
+ end
req = alert_esc_seq_item::type_id::create("req");
req.alert_esc_type = AlertEscSigTrans;
req.alert_handshake_sta = AlertReceived;
diff --git a/hw/ip/alert_handler/dv/env/alert_handler_env_cfg.sv b/hw/ip/alert_handler/dv/env/alert_handler_env_cfg.sv
index b7201d9..5f828a2 100644
--- a/hw/ip/alert_handler/dv/env/alert_handler_env_cfg.sv
+++ b/hw/ip/alert_handler/dv/env/alert_handler_env_cfg.sv
@@ -38,6 +38,7 @@
alert_host_cfg[i] =
alert_esc_agent_cfg::type_id::create($sformatf("alert_host_cfg[%0d]", i));
alert_host_cfg[i].if_mode = dv_utils_pkg::Host;
+ alert_host_cfg[i].is_async = ASYNC_ON[i];
end
foreach (esc_device_cfg[i]) begin
esc_device_cfg[i] =
