SWDEV-322620 - Virtual Memory Management

Hooked up the start VA hint address to PAL.

Change-Id: I4301d3eaaabcc85faf63fb25291291dcc3e8ebd1


[ROCm/clr commit: 470c4d7335]

projects/clr/rocclr/device/pal/palcdefs

@@ -1,3 +1,3 @@
 # PAL interface versions
-PAL_MAJOR_VERSION = 734
+PAL_MAJOR_VERSION = 761
 GPUOPEN_MAJOR_VERSION = 42

projects/clr/rocclr/device/pal/palresource.cpp

@@ -1255,6 +1255,10 @@ bool Resource::create(MemoryType memType, CreateParams* params, bool forceLinear
     createInfo.flags.busAddressable = true;
   } else if (memoryType() == VaRange) {
     createInfo.flags.virtualAlloc = true;
+    if (params->owner_->getSvmPtr() != nullptr) {
+      createInfo.flags.startVaHintFlag = true;
+      createInfo.startVaHint = reinterpret_cast<Pal::gpusize>(params->owner_->getSvmPtr());
+    }
   }
 
   memTypeToHeap(&createInfo);