e6b2785811
If supported by host virglrenderer and host kernel, use userspace allocated GPU virtual addresses. This lets us avoid stalling on waiting for response from host kernel until we need to know the host handle (which is usually not until submit time). Handling the async response from host to get host_handle is done thru the submit_queue, so that in the submit path (hot) we do not need any additional synchronization to know that the host_handle is valid. Signed-off-by: Rob Clark <robdclark@chromium.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16086>