SWDEV-311270 - Add IPC support for memory pools

Initial implementation for hipMemPoolExportToShareableHandle,
hipMemPoolImportFromShareableHandle,
hipMemPoolExportPointer and hipMemPoolImportPointer

Change-Id: I0ebdc48e9163b394ded560adca6c38bbc5aee7d1


[ROCm/clr commit: 1a0c3e4dc4]

projects/clr/rocclr/platform/memory.cpp

@@ -1535,6 +1535,14 @@ void SvmBuffer::memFill(void* dst, const void* src, size_t srcSize, size_t times
   }
 }
 
+// ================================================================================================
 bool SvmBuffer::malloced(const void* ptr) { return Contains(reinterpret_cast<uintptr_t>(ptr)); }
 
+// ================================================================================================
+void IpcBuffer::initDeviceMemory() {
+  deviceMemories_ =
+      reinterpret_cast<DeviceMemory*>(reinterpret_cast<char*>(this) + sizeof(IpcBuffer));
+  memset(deviceMemories_, 0, NumDevicesWithP2P() * sizeof(DeviceMemory));
+}
+
 }  // namespace amd