Add a fairly simple test of the IPM-over-IPC driver. This hits all
the code, but works by implementing the host side of the protocol
partially in the C test code. The message is sent with an initial
payload, and then IPC commands from the firmware copy the data over
into the "inbox" region to simulate data being sent via the host.
Then we make sure it lands correctly as if the host driver had done it
directly.
This requries a new command in the cavstool script that will copy a
word from the "outbox" region to the "inbox" region (both are just
different SRAM windows, conceptually no different than the way the
script is already managing log output), but no significant surgery.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
As Zephyr begins to absorb drivers for these platforms that had
previously been managed by the SOF app, there's a need for a rapid
board-specific smoke test to use during development.
This starts with the smp_boot_delay test (itself a unit test for a
SOF-derived feature) and adds a host IPC case (that needs to match
code in cavstool.py on the other side of the PCI bus!).
It will grow more features over time as needed.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Andy Ross