Matthew Auld writes:
> But in the bug report the pciid=0x5916 and rev=0x0, which makes it KBL
> A0, right? So something else must be going on here.
You are right. This patch can't affect the bug in question.
I haven't yet found a similar machine so it is still mystery why the
write doesn't stick
But in the bug report the pciid=0x5916 and rev=0x0, which makes it KBL
A0, right? So something else must be going on here. There also seems
to be a mismatch between #2226938, #2225763 and #2225601 in terms of
what the wa should be, some make reference to bit[30].
___
Bspec states that this wa is for A0/B0 revs and this is noted in
commit b90420467232 ("drm/i915/kbl: Add WaDisableDynamicCreditSharing")
But other sources state that this is for A0 only. Also evidence indicates
that with some kbl variants the bit doesn't stick. So trust the other
sources and limit
