rocr/aie: Support VMEM handle creation

Adds support for AllocateMemoryOnly inside XDNA driver.

Move the IsLocalMemory() check inside the KFD driver
since the XDNA driver can, and needs to, create handles
on system memory buffer objects.

Changed handle variable name from thunk_handle to user_mode_driver_handle,
which is more representative if we support non-GPU drivers.

Change-Id: I95db9d575afd1ab0ff2de74cea5175d9a12a721b


[ROCm/ROCR-Runtime commit: 4bf102dc6b]

projects/rocr-runtime/runtime/hsa-runtime/core/runtime/runtime.cpp

@@ -3111,20 +3111,22 @@ hsa_status_t Runtime::VMemoryHandleCreate(const MemoryRegion* region, size_t siz
                                           uint64_t flags_unused,
                                           hsa_amd_vmem_alloc_handle_t* memoryOnlyHandle) {
   const AMD::MemoryRegion* memRegion = static_cast<const AMD::MemoryRegion*>(region);
-  if (!memRegion->IsLocalMemory()) return HSA_STATUS_ERROR_INVALID_ARGUMENT;
 
   if (!IsMultipleOf(size, memRegion->GetPageSize()))
     return HSA_STATUS_ERROR_INVALID_ARGUMENT;
 
   ScopedAcquire<KernelSharedMutex> lock(&memory_lock_);
-  void* thunk_handle;
-  hsa_status_t status = region->Allocate(size, alloc_flags, &thunk_handle, 0);
+  void *user_mode_driver_handle;
+  hsa_status_t status =
+      region->Allocate(size, alloc_flags, &user_mode_driver_handle, 0);
   if (status == HSA_STATUS_SUCCESS) {
     memory_handle_map_.emplace(std::piecewise_construct,
-          std::forward_as_tuple(thunk_handle),
-          std::forward_as_tuple(region, size, flags_unused, thunk_handle, alloc_flags));
+                               std::forward_as_tuple(user_mode_driver_handle),
+                               std::forward_as_tuple(region, size, flags_unused,
+                                                     user_mode_driver_handle,
+                                                     alloc_flags));
 
-    *memoryOnlyHandle = MemoryHandle::Convert(thunk_handle);
+    *memoryOnlyHandle = MemoryHandle::Convert(user_mode_driver_handle);
   }
   return status;
 }