[Intel-gfx] ✗ Fi.CI.BAT: failure for Update whitelist support for new hardware

[John Harrison]

On 6/14/2019 10:19, Tvrtko Ursulin wrote:
>
> Read-back of 0x20ec (GEN9_CS_DEBUG_MODE1) seems to be causing issues. 
> It could be put on the wo_register list if appropriate. And/or made 
> RING_FORCE_TO_NONPRIV_RW.
>
> However now I realize that handling of new whitelisting modes is 
> missing from the selftest altogether. All RING_FORCE_TO_NONPRIV_RD and 
> RING_FORCE_TO_NONPRIV_WR probably need explicit handling there - first 
> ones to check they cannot be written to, and skip read-back on the 
> second one.
>
> Regards,
>
> Tvrtko

It looks like there are multiple issues.

I think the quickest/simplest option right now is to drop a bunch of the 
ICL updates (because there are too many for the current 12 slot maximum) 
and to drop the problematic CFL updates.

The only changes that are urgently needed are the HUC status registers. 
Unfortunately, they are read-only entries. So the self-test will need to 
be updated to cope with those. Not sure what it can do though. Do we 
just skip read-only entries? The test can't know what a valid value to 
read back is.

The rest we can put back in later on once all the other issues have been 
resolved.

John.