Quoting Kenneth Graunke (2018-05-04 02:12:38) > We'd like to start using soft-pin to assign BO addresses up front, and > never move them again. Our previous plan for dealing with 48-bit VF > cache bugs was to relocate vertex buffers to the low 4GB, so we'd never > have addresses that alias in the low 32 bits. But that requires moving > buffers dynamically. > > This patch tracks the last seen BO address for each vertex/index buffer, > and emits a VF cache invalidate if the high bits change. (Ideally, we > won't hit this case very often.) This should work for the soft-pin > case, but unfortunately won't work in the relocation case, as we don't > actually know the addresses. So, we have to use both methods.
It can only be moved between batches; and between batches there is a PIPE_CONTROL_VF_CACHE_INVALIDATE. Is there more to this w/a, or is it truly unnecessary? See gen8_emit_flush_render() and double check that is sufficient. -Chris _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
