[UR][L0] Add L0 teardown notification support and simply teardown with proxy loader support

- Add support for L0 teardown notification in the static L0 loader.
- Add loading of the L0 dynamic loader in the windows proxy loader
  to ensure that the L0 dynamic loader is usable during teardown.

Signed-off-by: Neil R. Spruit <[email protected]>

Author: nrspruit

sycl/ur_win_proxy_loader/ur_win_proxy_loader.cpp

@@ -146,6 +146,10 @@ void preloadLibraries() {
   loadAdapter(UR_LIBRARY_NAME(adapter_cuda));
   loadAdapter(UR_LIBRARY_NAME(adapter_hip));
   loadAdapter(UR_LIBRARY_NAME(adapter_native_cpu));
+  // Load the Level Zero loader dynamic library to ensure it is loaded during the runtime.
+  // This is necessary to avoid the level zero loader from being unloaded prematurely.
+  // the Only trusted loader is the one that is loaded from the system32 directory.
+  LoadLibraryExW(L"ze_loader.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
 
   // Restore system error handling.
   (void)SetErrorMode(SavedMode);

unified-runtime/cmake/FetchLevelZero.cmake

@@ -44,10 +44,10 @@ if (NOT DEFINED LEVEL_ZERO_LIBRARY OR NOT DEFINED LEVEL_ZERO_INCLUDE_DIR)
     set(BUILD_STATIC ON)
 
     if (UR_LEVEL_ZERO_LOADER_REPO STREQUAL "")
-        set(UR_LEVEL_ZERO_LOADER_REPO "https://github.com/oneapi-src/level-zero.git")
+        set(UR_LEVEL_ZERO_LOADER_REPO "https://github.com/nrspruit/level-zero.git")
     endif()
     if (UR_LEVEL_ZERO_LOADER_TAG STREQUAL "")
-        set(UR_LEVEL_ZERO_LOADER_TAG abc68a57e5d536a449a5e45f1aef85285fa70088)
+        set(UR_LEVEL_ZERO_LOADER_TAG dbdd143a024e515e670d8be8a96fe0fc3e7fc7bc)
     endif()
 
     # Disable due to a bug https://github.com/oneapi-src/level-zero/issues/104