SWDEV-232894 Port hipMemcpy optimizations from HCC to VDI

Change-Id: I6bebe9ac503a9f80d067aeea8a848409ad210338

rocclr/platform/context.cpp

@@ -50,7 +50,8 @@ Context::Context(const std::vector<Device*>& devices, const Info& info)
       info_(info),
       properties_(NULL),
       glenv_(NULL),
-      customHostAllocDevice_(NULL) {
+      customHostAllocDevice_(NULL),
+      largeBar_(true) {
   for (const auto& device : devices) {
     device->retain();
     if (customHostAllocDevice_ == NULL && device->customHostAllocator()) {
@@ -59,7 +60,11 @@ Context::Context(const std::vector<Device*>& devices, const Info& info)
     if (device->svmSupport()) {
       svmAllocDevice_.push_back(device);
     }
+    if (!device->isLargeBar()) {
+      largeBar_ = false;
+    }
   }
+
   if (svmAllocDevice_.size() > 1) {
     uint isFirstDeviceFGSEnabled = svmAllocDevice_.front()->isFineGrainedSystem(true);
     for (auto& dev : svmAllocDevice_) {