ceph/src/boost/boost/compute/detail/nvidia_compute_capability.hpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #ifndef BOOST_COMPUTE_DETAIL_NVIDIA_COMPUTE_CAPABILITY_HPP
  12 #define BOOST_COMPUTE_DETAIL_NVIDIA_COMPUTE_CAPABILITY_HPP
  13
  14 #include <boost/compute/device.hpp>
  15
  16 #ifdef BOOST_COMPUTE_HAVE_HDR_CL_EXT
  17   #include <boost/compute/detail/cl_versions.hpp>
  18   #include <CL/cl_ext.h>
  19 #endif
  20
  21 namespace boost {
  22 namespace compute {
  23 namespace detail {
  24
  25 #ifdef CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV
  26     #define BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV
  27 #else
  28     #define BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV 0x4000
  29 #endif
  30
  31 #ifdef CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV
  32     #define BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV
  33 #else
  34     #define BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV 0x4001
  35 #endif
  36
  37 inline void get_nvidia_compute_capability(const device &device, int &major, int &minor)
  38 {
  39     if(!device.supports_extension("cl_nv_device_attribute_query")){
  40         major = minor = 0;
  41         return;
  42     }
  43
  44     major = device.get_info<uint_>(BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV);
  45     minor = device.get_info<uint_>(BOOST_COMPUTE_CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV);
  46 }
  47
  48 inline bool check_nvidia_compute_capability(const device &device, int major, int minor)
  49 {
  50     int actual_major, actual_minor;
  51     get_nvidia_compute_capability(device, actual_major, actual_minor);
  52
  53     return actual_major > major ||
  54            (actual_major == major && actual_minor >= minor);
  55 }
  56
  57 } // end detail namespace
  58 } // end compute namespace
  59 } // end boost namespace
  60
  61 #endif // BOOST_COMPUTE_DETAIL_NVIDIA_COMPUTE_CAPABILITY_HPP