tree 123419c69c342982299daea88cb1c1cc35ee5e65
parent e190b64c93b214ff311f493cfa64a56ea67d300c
author Cindy Chen <chencindy@google.com> 1594850057 -0700
committer cindychip <cindy.chen0316@gmail.com> 1594917697 -0700

[sv/alert] add alert support in cip_base

In cip_base_scoreboard, add the following alert_esc_agent support:
1. Add tlm_analysis port to detect alert sent from DUT
2. Use process_alert_fifos task to filter out illegal alert_items (ping
responses and sig_int_err). If real alert happened, or real alert
handshake finished, both condition will call "process_alert_sig"
function.

In cip_base_vseq, add support:
1. add a knob to en_auto_alerts_response in cip_base_vseq - default on
2. add run_alert_response_nonblocking in dut_init
3. If user disabled the en_auto_alerts_response knob, the nonblocking
sequence will wait for current response to finish then exit
4. If user wants to re-enable the en_auto_alerts_response knob, they
have to also trigger dut_init() again

Signed-off-by: Cindy Chen <chencindy@google.com>