73 lines
2.0 KiB
Plaintext
73 lines
2.0 KiB
Plaintext
|
//---------------------------------------------------------------------------//
|
||
|
|
// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
|
||
|
|
//
|
||
|
|
// Distributed under the Boost Software License, Version 1.0
|
||
|
|
// See accompanying file LICENSE_1_0.txt or copy at
|
||
|
|
// http://www.boost.org/LICENSE_1_0.txt
|
||
|
|
//
|
||
|
|
// See http://boostorg.github.com/compute for more information.
|
||
|
|
//---------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
#ifndef BOOST_COMPUTE_SVM_HPP
|
||
|
|
#define BOOST_COMPUTE_SVM_HPP
|
||
|
|
|
||
|
|
#include <boost/compute/config.hpp>
|
||
|
|
#include <boost/compute/context.hpp>
|
||
|
|
#include <boost/compute/memory/svm_ptr.hpp>
|
||
|
|
|
||
|
|
// svm functions require OpenCL 2.0
|
||
|
|
#if defined(CL_VERSION_2_0) || defined(BOOST_COMPUTE_DOXYGEN_INVOKED)
|
||
|
|
|
||
|
|
namespace boost {
|
||
|
|
namespace compute {
|
||
|
|
|
||
|
|
/// Allocates a shared virtual memory (SVM) buffer.
|
||
|
|
//
|
||
|
|
/// \opencl_version_warning{2,0}
|
||
|
|
///
|
||
|
|
/// \see_opencl2_ref{clSVMAlloc}
|
||
|
|
///
|
||
|
|
/// \see svm_free()
|
||
|
|
template<class T>
|
||
|
|
inline svm_ptr<T> svm_alloc(const context &context,
|
||
|
|
size_t size,
|
||
|
|
cl_svm_mem_flags flags = CL_MEM_READ_WRITE,
|
||
|
|
unsigned int alignment = 0)
|
||
|
|
{
|
||
|
|
svm_ptr<T> ptr(
|
||
|
|
clSVMAlloc(context.get(), flags, size * sizeof(T), alignment),
|
||
|
|
context
|
||
|
|
);
|
||
|
|
if(!ptr.get()){
|
||
|
|
BOOST_THROW_EXCEPTION(opencl_error(CL_MEM_OBJECT_ALLOCATION_FAILURE));
|
||
|
|
}
|
||
|
|
return ptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Deallocates a shared virtual memory (SVM) buffer.
|
||
|
|
///
|
||
|
|
/// \opencl_version_warning{2,0}
|
||
|
|
///
|
||
|
|
/// \see_opencl2_ref{clSVMFree}
|
||
|
|
///
|
||
|
|
/// \see svm_alloc(), command_queue::enqueue_svm_free()
|
||
|
|
template<class T>
|
||
|
|
inline void svm_free(svm_ptr<T> ptr)
|
||
|
|
{
|
||
|
|
clSVMFree(ptr.get_context(), ptr.get());
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \overload
|
||
|
|
template<class T>
|
||
|
|
inline void svm_free(const context &context, svm_ptr<T> ptr)
|
||
|
|
{
|
||
|
|
clSVMFree(context.get(), ptr.get());
|
||
|
|
}
|
||
|
|
|
||
|
|
} // end compute namespace
|
||
|
|
} // end boost namespace
|
||
|
|
|
||
|
|
#endif // CL_VERSION_2_0
|
||
|
|
|
||
|
|
#endif // BOOST_COMPUTE_PIPE_HPP
|