move utility headers from library/include to include path (#1697)

include/ck/library/utility/device_memory.hpp

@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
+
+#pragma once
+
+#include <hip/hip_runtime.h>
+
+template <typename T>
+__global__ void set_buffer_value(T* p, T x, uint64_t buffer_element_size)
+{
+    for(uint64_t i = threadIdx.x; i < buffer_element_size; i += blockDim.x)
+    {
+        p[i] = x;
+    }
+}
+
+/**
+ * @brief Container for storing data in GPU device memory
+ *
+ */
+struct DeviceMem
+{
+    DeviceMem() : mpDeviceBuf(nullptr), mMemSize(0) {}
+    DeviceMem(std::size_t mem_size);
+    void Realloc(std::size_t mem_size);
+    void* GetDeviceBuffer() const;
+    std::size_t GetBufferSize() const;
+    void ToDevice(const void* p) const;
+    void ToDevice(const void* p, const std::size_t cpySize) const;
+    void FromDevice(void* p) const;
+    void FromDevice(void* p, const std::size_t cpySize) const;
+    void SetZero() const;
+    template <typename T>
+    void SetValue(T x) const;
+    ~DeviceMem();
+
+    void* mpDeviceBuf;
+    std::size_t mMemSize;
+};
+
+template <typename T>
+void DeviceMem::SetValue(T x) const
+{
+    if(mMemSize % sizeof(T) != 0)
+    {
+        throw std::runtime_error("wrong! not entire DeviceMem will be set");
+    }
+
+    set_buffer_value<T><<<1, 1024>>>(static_cast<T*>(mpDeviceBuf), x, mMemSize / sizeof(T));
+}