Re: [RFC PATCH, x86]: Disable CPA cache flush for selfsnoop targets

Andi Kleen
2019-07-15T22:53:08Z

> I haven't tested on a real kernel with i915. Does i915 really hit
> this code path? Does it happen more than once or twice at boot?

Yes some workloads allocate/free a lot of write combined memory
for graphics objects.

-Andi