text: /*
   * This file is part of hipSYCL, a SYCL implementation based on CUDA/HIP
   *
   * Copyright (c) 2019 Aksel Alpay
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef HIPSYCL_CUDA_ALLOCATOR_HPP
  #define HIPSYCL_CUDA_ALLOCATOR_HPP
  
  #include "../allocator.hpp"
  
  namespace hipsycl {
  namespace rt {
  
  class cuda_allocator : public backend_allocator 
  {
  public:
    cuda_allocator(backend_descriptor desc, int cuda_device);
  
    virtual void* allocate(size_t min_alignment, size_t size_bytes) override;
  
    virtual void *allocate_optimized_host(size_t min_alignment,
                                          size_t bytes) override;
    
    virtual void free(void *mem) override;
  
    virtual void *allocate_usm(size_t bytes) override;
    virtual bool is_usm_accessible_from(backend_descriptor b) const override;
  
    virtual result query_pointer(const void* ptr, pointer_info& out) const override;
  
    virtual result mem_advise(const void *addr, std::size_t num_bytes,
                              int advise) const override;
  private:
    backend_descriptor _backend_descriptor;
    int _dev;
  };
  
  }
  }
  
  #endif