Move aub related files to aub directory

Additionally remove dependencies on opencl code from aub and tbx code.

Related-To: NEO-3964

Change-Id: Ie81b7d274e2f22b6090df0e07c45123618af5cae
Signed-off-by: Filip Hazubski <filip.hazubski@intel.com>

shared/source/memory_manager/physical_address_allocator.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2018-2020 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#pragma once
+#include "shared/source/helpers/aligned_memory.h"
+#include "shared/source/helpers/constants.h"
+#include "shared/source/helpers/debug_helpers.h"
+#include "shared/source/memory_manager/memory_banks.h"
+
+#include <atomic>
+#include <mutex>
+
+namespace NEO {
+
+class PhysicalAddressAllocator {
+  public:
+    PhysicalAddressAllocator() {
+        mainAllocator.store(initialPageAddress);
+    }
+
+    virtual ~PhysicalAddressAllocator() = default;
+
+    uint64_t reserve4kPage(uint32_t memoryBank) {
+        return reservePage(memoryBank, MemoryConstants::pageSize, MemoryConstants::pageSize);
+    }
+
+    uint64_t reserve64kPage(uint32_t memoryBank) {
+        return reservePage(memoryBank, MemoryConstants::pageSize64k, MemoryConstants::pageSize64k);
+    }
+
+    virtual uint64_t reservePage(uint32_t memoryBank, size_t pageSize, size_t alignement) {
+        UNRECOVERABLE_IF(memoryBank != MemoryBanks::MainBank);
+
+        std::unique_lock<std::mutex> lock(pageReserveMutex);
+
+        auto currentAddress = mainAllocator.load();
+        auto alignmentSize = alignUp(currentAddress, alignement) - currentAddress;
+        mainAllocator += alignmentSize;
+        return mainAllocator.fetch_add(pageSize);
+    }
+
+  protected:
+    std::atomic<uint64_t> mainAllocator;
+    std::mutex pageReserveMutex;
+    const uint64_t initialPageAddress = 0x1000;
+};
+
+} // namespace NEO