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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18 // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19 // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20 // SOFTWARE.
  21 //
  22
  23 #include "core/device.hpp"
  24 #include "pipe/p_screen.h"
  25 #include "pipe/p_state.h"
  26
  27 using namespace clover;
  28
  29 namespace {
  30    template<typename T>
  31    std::vector<T>
  32    get_compute_param(pipe_screen *pipe, pipe_compute_cap cap) {
  33       int sz = pipe->get_compute_param(pipe, cap, NULL);
  34       std::vector<T> v(sz / sizeof(T));
  35
  36       pipe->get_compute_param(pipe, cap, &v.front());
  37       return v;
  38    }
  39 }
  40
  41 _cl_device_id::_cl_device_id(pipe_loader_device *ldev) : ldev(ldev) {
  42    pipe = pipe_loader_create_screen(ldev, PIPE_SEARCH_DIR);
  43    if (!pipe || !pipe->get_param(pipe, PIPE_CAP_COMPUTE))
  44       throw error(CL_INVALID_DEVICE);
  45 }
  46
  47 _cl_device_id::_cl_device_id(_cl_device_id &&dev) : pipe(dev.pipe), ldev(dev.ldev) {
  48    dev.ldev = NULL;
  49    dev.pipe = NULL;
  50 }
  51
  52 _cl_device_id::~_cl_device_id() {
  53    if (pipe)
  54       pipe->destroy(pipe);
  55    if (ldev)
  56       pipe_loader_release(&ldev, 1);
  57 }
  58
  59 cl_device_type
  60 _cl_device_id::type() const {
  61    switch (ldev->type) {
  62    case PIPE_LOADER_DEVICE_SOFTWARE:
  63       return CL_DEVICE_TYPE_CPU;
  64    case PIPE_LOADER_DEVICE_PCI:
  65       return CL_DEVICE_TYPE_GPU;
  66    default:
  67       assert(0);
  68       return 0;
  69    }
  70 }
  71
  72 cl_uint
  73 _cl_device_id::vendor_id() const {
  74    switch (ldev->type) {
  75    case PIPE_LOADER_DEVICE_SOFTWARE:
  76       return 0;
  77    case PIPE_LOADER_DEVICE_PCI:
  78       return ldev->u.pci.vendor_id;
  79    default:
  80       assert(0);
  81       return 0;
  82    }
  83 }
  84
  85 size_t
  86 _cl_device_id::max_images_read() const {
  87    return PIPE_MAX_SHADER_RESOURCES;
  88 }
  89
  90 size_t
  91 _cl_device_id::max_images_write() const {
  92    return PIPE_MAX_SHADER_RESOURCES;
  93 }
  94
  95 cl_uint
  96 _cl_device_id::max_image_levels_2d() const {
  97    return pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
  98 }
  99
 100 cl_uint
 101 _cl_device_id::max_image_levels_3d() const {
 102    return pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_3D_LEVELS);
 103 }
 104
 105 cl_uint
 106 _cl_device_id::max_samplers() const {
 107    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 108                                  PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 109 }
 110
 111 cl_ulong
 112 _cl_device_id::max_mem_global() const {
 113    return get_compute_param<uint64_t>(pipe,
 114                                       PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE)[0];
 115 }
 116
 117 cl_ulong
 118 _cl_device_id::max_mem_local() const {
 119    return get_compute_param<uint64_t>(pipe,
 120                                       PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE)[0];
 121 }
 122
 123 cl_ulong
 124 _cl_device_id::max_mem_input() const {
 125    return get_compute_param<uint64_t>(pipe,
 126                                       PIPE_COMPUTE_CAP_MAX_INPUT_SIZE)[0];
 127 }
 128
 129 cl_ulong
 130 _cl_device_id::max_const_buffer_size() const {
 131    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 132                                  PIPE_SHADER_CAP_MAX_CONSTS) * 16;
 133 }
 134
 135 cl_uint
 136 _cl_device_id::max_const_buffers() const {
 137    return pipe->get_shader_param(pipe, PIPE_SHADER_COMPUTE,
 138                                  PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
 139 }
 140
 141 size_t
 142 _cl_device_id::max_threads_per_block() const {
 143    return get_compute_param<uint64_t>(
 144       pipe, PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK)[0];
 145 }
 146
 147 cl_ulong
 148 _cl_device_id::max_mem_alloc_size() const {
 149    return get_compute_param<uint64_t>(pipe,
 150                                       PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE)[0];
 151 }
 152
 153 std::vector<size_t>
 154 _cl_device_id::max_block_size() const {
 155    auto v = get_compute_param<uint64_t>(pipe, PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE);
 156    return { v.begin(), v.end() };
 157 }
 158
 159 std::string
 160 _cl_device_id::device_name() const {
 161    return pipe->get_name(pipe);
 162 }
 163
 164 std::string
 165 _cl_device_id::vendor_name() const {
 166    return pipe->get_vendor(pipe);
 167 }
 168
 169 enum pipe_shader_ir
 170 _cl_device_id::ir_format() const {
 171    return (enum pipe_shader_ir) pipe->get_shader_param(pipe,
 172                                                   PIPE_SHADER_COMPUTE,
 173                                                   PIPE_SHADER_CAP_PREFERRED_IR);
 174 }
 175
 176 std::string
 177 _cl_device_id::ir_target() const {
 178    std::vector<char> target = get_compute_param<char>(pipe,
 179                                                     PIPE_COMPUTE_CAP_IR_TARGET);
 180    return { target.data() };
 181 }
 182
 183 device_registry::device_registry() {
 184    int n = pipe_loader_probe(NULL, 0);
 185    std::vector<pipe_loader_device *> ldevs(n);
 186
 187    pipe_loader_probe(&ldevs.front(), n);
 188
 189    for (pipe_loader_device *ldev : ldevs) {
 190       try {
 191          devs.emplace_back(ldev);
 192       } catch (error &) {}
 193    }
 194 }