Testplan - OpenTitan Documentation

Testpoints

Stage	Name	Tests	Description
V1	xbar_smoke	xbar_smoke	Sequentially test each host to access any device
V2	xbar_base_random_sequence	xbar_random	Enable all hosts to randomly send transactions to any device
V2	xbar_random_delay	xbar_smoke_zero_delays xbar_smoke_large_delays xbar_smoke_slow_rsp xbar_random_zero_delays xbar_random_large_delays xbar_random_slow_rsp	Control delays through plusargs to create tests for below types of delay Zero delay for sending a/d_valid and a/d_ready Large delay from 0 ~ 1000 cycles Small delay (0-10 cycles) for a_channel, large delay (0-1000 cycles) for d_channel
V2	xbar_unmapped_address	xbar_unmapped_addr xbar_error_and_unmapped_addr	Host randomly drives transactions with mapped and unmapped address Ensure DUT returns d_error=1 if address is unmapped and transaction isn't passed down to any device
V2	xbar_error_cases	xbar_error_random xbar_error_and_unmapped_addr	Drive any random value on size, mask, opcode in both channels Ensure everything just pass through host to device or device to host
V2	xbar_all_access_same_device	xbar_access_same_device xbar_access_same_device_slow_rsp	Randomly pick a device, make all hosts to access this device If the device isn't accessible for the host, let the host randomly access the other devices
V2	xbar_all_hosts_use_same_source_id	xbar_same_source	Test all hosts use same ID at the same same
V2	xbar_stress_all	xbar_stress_all xbar_stress_all_with_error	Combine all sequences and run in parallel Add random reset between each iteration
V2	xbar_stress_with_reset	xbar_stress_all_with_rand_reset xbar_stress_all_with_reset_error	Inject reset while stress_all is running, after reset is completed, kill the stress seq and then start a new stress seq Run a few iteration to ensure reset doesn't break the design