Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
In general, the display miniport driver (KMD) is reentrant. That is, multiple threads can be present within a KMD at the same time. However, some calls into the KMD shouldn't be reentrant because they either access graphics hardware or access global cross-thread data structures.
Although reentrancy or nonreentrancy can't be selected at a per-call level, WDDM pre-assigns, per call, synchronization levels that define precisely what the driver should expect for the call. These synchronization levels are as follows: