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>
There is only one queue for now, so for non-shared semaphores, the
implementation is basically a no-op. For shared semaphores, this
always uses syncobjs. This depends on syncobj support in the msm
kernel driver.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2769>
This diverged back in f1374805a8 ("drm-uapi: use local files, not system
libdrm") to point at drm-uapi's copy, which we don't need now that we're
actually in drm-uapi.
Reviewed-by: Rob Clark <robdclark@gmail.com>
