src/gallium/state_trackers/clover/core/device.cpp

   1 //
   2 // Copyright 2012 Francisco Jerez
   3 //
   4 // Permission is hereby granted, free of charge, to any person obtaining a
   5 // copy of this software and associated documentation files (the "Software"),
   6 // to deal in the Software without restriction, including without limitation
   7 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 #include "core/device.hpp"
  24 #include "core/platform.hpp"
  25 #include "pipe/p_screen.h"
  26 #include "pipe/p_state.h"
  27
  28 using namespace clover;
  29
  30 namespace {
  31    template<typename T>
  32    std::vector<T>
  33    get_compute_param(pipe_screen *pipe, pipe_compute_cap cap) {
  34       int sz = pipe->get_compute_param(pipe, cap, NULL);
  35       std::vector<T> v(sz / sizeof(T));
  36
  37       pipe->get_compute_param(pipe, cap, &v.front());
  38       return v;
  39    }
  40 }
  41
  42 device::device(clover::platform &platform, pipe_loader_device *ldev) :
  43    platform(platform), ldev(ldev) {
  44    pipe = pipe_loader_create_screen(ldev, PIPE_SEARCH_DIR);
  45    if (!pipe || !pipe->get_param(pipe, PIPE_CAP_COMPUTE))
  46       throw error(CL_INVALID_DEVICE);
  47 }
  48
  49 device::~device() {
  50    if (pipe)
  51       pipe->destroy(pipe);
  52    if (ldev)
  53       pipe_loader_release(&ldev, 1);
  54 }
  55
  56 bool
  57 device::operator==(const device &dev) const {
  58    return this == &dev;
  59 }
  60
  61 cl_device_type
  62 device::type() const {
  63    switch (ldev->type) {
  64    case PIPE_LOADER_DEVICE_SOFTWARE:
  65       return CL_DEVICE_TYPE_CPU;
  66    case PIPE_LOADER_DEVICE_PCI:
  67    case PIPE_LOADER_DEVICE_PLATFORM:
  68       return CL_DEVICE_TYPE_GPU;
  69    default:
  70       assert(0);
  71       return 0;
  72    }
  73 }
  74
  75 cl_uint
  76 device::vendor_id() const {
  77    switch (ldev->type) {
  78    case PIPE_LOADER_DEVICE_SOFTWARE:
  79    case PIPE_LOADER_DEVICE_PLATFORM:
  80       return 0;
  81    case PIPE_LOADER_DEVICE_PCI:
  82       return ldev->u.pci.vendor_id;
  83    default:
  84       assert(0);
  85       return 0;
  86    }
  87 }
  88
  89 size_t
  90 device::max_images_read() const {
  91    return PIPE_MAX_SHADER_RESOURCES;
  92 }
  93
  94 size_t
  95 device::max_images_write() const {
  96    return PIPE_MAX_SHADER_RESOURCES;
  97 }
  98
  99 cl_uint
 100 device::max_image_levels_2d() const {
 101    return pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 102 }
 103
 104 cl_uint
 105 device::max_image_levels_3d() const {
 106    return pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_3D_LEVELS);
 107 }
 108
 109 cl_uint
 110 device::max_samplers() const {
 111    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 112                                  PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 113 }
 114
 115 cl_ulong
 116 device::max_mem_global() const {
 117    return get_compute_param<uint64_t>(pipe,
 118                                       PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE)[0];
 119 }
 120
 121 cl_ulong
 122 device::max_mem_local() const {
 123    return get_compute_param<uint64_t>(pipe,
 124                                       PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE)[0];
 125 }
 126
 127 cl_ulong
 128 device::max_mem_input() const {
 129    return get_compute_param<uint64_t>(pipe,
 130                                       PIPE_COMPUTE_CAP_MAX_INPUT_SIZE)[0];
 131 }
 132
 133 cl_ulong
 134 device::max_const_buffer_size() const {
 135    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 136                                  PIPE_SHADER_CAP_MAX_CONSTS) * 16;
 137 }
 138
 139 cl_uint
 140 device::max_const_buffers() const {
 141    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 142                                  PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
 143 }
 144
 145 size_t
 146 device::max_threads_per_block() const {
 147    return get_compute_param<uint64_t>(
 148       pipe, PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK)[0];
 149 }
 150
 151 cl_ulong
 152 device::max_mem_alloc_size() const {
 153    return get_compute_param<uint64_t>(pipe,
 154                                       PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE)[0];
 155 }
 156
 157 std::vector<size_t>
 158 device::max_block_size() const {
 159    auto v = get_compute_param<uint64_t>(pipe, PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE);
 160    return { v.begin(), v.end() };
 161 }
 162
 163 std::string
 164 device::device_name() const {
 165    return pipe->get_name(pipe);
 166 }
 167
 168 std::string
 169 device::vendor_name() const {
 170    return pipe->get_vendor(pipe);
 171 }
 172
 173 enum pipe_shader_ir
 174 device::ir_format() const {
 175    return (enum pipe_shader_ir) pipe->get_shader_param(
 176       pipe, PIPE_SHADER_COMPUTE, PIPE_SHADER_CAP_PREFERRED_IR);
 177 }
 178
 179 std::string
 180 device::ir_target() const {
 181    std::vector<char> target = get_compute_param<char>(
 182       pipe, PIPE_COMPUTE_CAP_IR_TARGET);
 183    return { target.data() };
 184 }
 185
 186 enum pipe_endian
 187 device::endianness() const {
 188    return (enum pipe_endian)pipe->get_param(pipe, PIPE_CAP_ENDIANNESS);
 189 }