//---------------------------------------------------------------------------// // 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