Quoting Chris Wilson (2018-05-31 10:19:23) > On gen8 and onwards, we can mark GPU accesses through the ppGTT as being > read-only, that is cause any GPU write onto that page to be discarded > (not triggering a fault). This is all that we need to finally support > the read-only flag for userptr!
For full disclosure, I should say I have some caveats about ro support around the API: I think both pwrite and GGTT mmap should reject bogus writes. Hmm, indeed in this case, GGTT mmap will explode. -Chris _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
