src/vulkan/anv_pipeline.c

   1 /*
   2  * Copyright © 2015 Intel Corporation
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include <assert.h>
  25 #include <stdbool.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29
  30 #include "anv_private.h"
  31
  32 // Shader functions
  33
  34 VkResult anv_CreateShaderModule(
  35     VkDevice                                    _device,
  36     const VkShaderModuleCreateInfo*             pCreateInfo,
  37     VkShaderModule*                             pShaderModule)
  38 {
  39    ANV_FROM_HANDLE(anv_device, device, _device);
  40    struct anv_shader_module *module;
  41
  42    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO);
  43    assert(pCreateInfo->flags == 0);
  44
  45    module = anv_device_alloc(device, sizeof(*module) + pCreateInfo->codeSize, 8,
  46                              VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
  47    if (module == NULL)
  48       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  49
  50    module->nir = NULL;
  51    module->size = pCreateInfo->codeSize;
  52    memcpy(module->data, pCreateInfo->pCode, module->size);
  53
  54    *pShaderModule = anv_shader_module_to_handle(module);
  55
  56    return VK_SUCCESS;
  57 }
  58
  59 void anv_DestroyShaderModule(
  60     VkDevice                                    _device,
  61     VkShaderModule                              _module)
  62 {
  63    ANV_FROM_HANDLE(anv_device, device, _device);
  64    ANV_FROM_HANDLE(anv_shader_module, module, _module);
  65
  66    anv_device_free(device, module);
  67 }
  68
  69 VkResult anv_CreateShader(
  70     VkDevice                                    _device,
  71     const VkShaderCreateInfo*                   pCreateInfo,
  72     VkShader*                                   pShader)
  73 {
  74    ANV_FROM_HANDLE(anv_device, device, _device);
  75    ANV_FROM_HANDLE(anv_shader_module, module, pCreateInfo->module);
  76    struct anv_shader *shader;
  77
  78    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_SHADER_CREATE_INFO);
  79    assert(pCreateInfo->flags == 0);
  80
  81    const char *name = pCreateInfo->pName ? pCreateInfo->pName : "main";
  82    size_t name_len = strlen(name);
  83
  84    if (strcmp(name, "main") != 0) {
  85       anv_finishme("Multiple shaders per module not really supported");
  86    }
  87
  88    shader = anv_device_alloc(device, sizeof(*shader) + name_len + 1, 8,
  89                              VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
  90    if (shader == NULL)
  91       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
  92
  93    shader->module = module;
  94    memcpy(shader->entrypoint, name, name_len + 1);
  95
  96    *pShader = anv_shader_to_handle(shader);
  97
  98    return VK_SUCCESS;
  99 }
 100
 101 void anv_DestroyShader(
 102     VkDevice                                    _device,
 103     VkShader                                    _shader)
 104 {
 105    ANV_FROM_HANDLE(anv_device, device, _device);
 106    ANV_FROM_HANDLE(anv_shader, shader, _shader);
 107
 108    anv_device_free(device, shader);
 109 }
 110
 111
 112 VkResult anv_CreatePipelineCache(
 113     VkDevice                                    device,
 114     const VkPipelineCacheCreateInfo*            pCreateInfo,
 115     VkPipelineCache*                            pPipelineCache)
 116 {
 117    pPipelineCache->handle = 1;
 118
 119    stub_return(VK_SUCCESS);
 120 }
 121
 122 void anv_DestroyPipelineCache(
 123     VkDevice                                    _device,
 124     VkPipelineCache                             _cache)
 125 {
 126 }
 127
 128 size_t anv_GetPipelineCacheSize(
 129     VkDevice                                    device,
 130     VkPipelineCache                             pipelineCache)
 131 {
 132    stub_return(0);
 133 }
 134
 135 VkResult anv_GetPipelineCacheData(
 136     VkDevice                                    device,
 137     VkPipelineCache                             pipelineCache,
 138     void*                                       pData)
 139 {
 140    stub_return(VK_UNSUPPORTED);
 141 }
 142
 143 VkResult anv_MergePipelineCaches(
 144     VkDevice                                    device,
 145     VkPipelineCache                             destCache,
 146     uint32_t                                    srcCacheCount,
 147     const VkPipelineCache*                      pSrcCaches)
 148 {
 149    stub_return(VK_UNSUPPORTED);
 150 }
 151
 152 void anv_DestroyPipeline(
 153     VkDevice                                    _device,
 154     VkPipeline                                  _pipeline)
 155 {
 156    ANV_FROM_HANDLE(anv_device, device, _device);
 157    ANV_FROM_HANDLE(anv_pipeline, pipeline, _pipeline);
 158
 159    anv_compiler_free(pipeline);
 160    anv_reloc_list_finish(&pipeline->batch_relocs, pipeline->device);
 161    anv_state_stream_finish(&pipeline->program_stream);
 162    anv_state_pool_free(&device->dynamic_state_pool, pipeline->blend_state);
 163    anv_device_free(pipeline->device, pipeline);
 164 }
 165
 166 static const uint32_t vk_to_gen_primitive_type[] = {
 167    [VK_PRIMITIVE_TOPOLOGY_POINT_LIST]           = _3DPRIM_POINTLIST,
 168    [VK_PRIMITIVE_TOPOLOGY_LINE_LIST]            = _3DPRIM_LINELIST,
 169    [VK_PRIMITIVE_TOPOLOGY_LINE_STRIP]           = _3DPRIM_LINESTRIP,
 170    [VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST]        = _3DPRIM_TRILIST,
 171    [VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP]       = _3DPRIM_TRISTRIP,
 172    [VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN]         = _3DPRIM_TRIFAN,
 173    [VK_PRIMITIVE_TOPOLOGY_LINE_LIST_ADJ]        = _3DPRIM_LINELIST_ADJ,
 174    [VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_ADJ]       = _3DPRIM_LINESTRIP_ADJ,
 175    [VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_ADJ]    = _3DPRIM_TRILIST_ADJ,
 176    [VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_ADJ]   = _3DPRIM_TRISTRIP_ADJ,
 177    [VK_PRIMITIVE_TOPOLOGY_PATCH]                = _3DPRIM_PATCHLIST_1
 178 };
 179
 180 static void
 181 anv_pipeline_init_dynamic_state(struct anv_pipeline *pipeline,
 182                                 const VkGraphicsPipelineCreateInfo *pCreateInfo)
 183 {
 184    uint32_t states = ANV_DYNAMIC_STATE_DIRTY_MASK;
 185
 186    if (pCreateInfo->pDynamicState) {
 187       /* Remove all of the states that are marked as dynamic */
 188       uint32_t count = pCreateInfo->pDynamicState->dynamicStateCount;
 189       for (uint32_t s = 0; s < count; s++)
 190          states &= ~(1 << pCreateInfo->pDynamicState->pDynamicStates[s]);
 191    }
 192
 193    struct anv_dynamic_state *dynamic = &pipeline->dynamic_state;
 194
 195    dynamic->viewport.count = pCreateInfo->pViewportState->viewportCount;
 196    if (states & (1 << VK_DYNAMIC_STATE_VIEWPORT)) {
 197       typed_memcpy(dynamic->viewport.viewports,
 198                    pCreateInfo->pViewportState->pViewports,
 199                    pCreateInfo->pViewportState->viewportCount);
 200    }
 201
 202    dynamic->scissor.count = pCreateInfo->pViewportState->scissorCount;
 203    if (states & (1 << VK_DYNAMIC_STATE_SCISSOR)) {
 204       typed_memcpy(dynamic->scissor.scissors,
 205                    pCreateInfo->pViewportState->pScissors,
 206                    pCreateInfo->pViewportState->scissorCount);
 207    }
 208
 209    if (states & (1 << VK_DYNAMIC_STATE_LINE_WIDTH)) {
 210       assert(pCreateInfo->pRasterState);
 211       dynamic->line_width = pCreateInfo->pRasterState->lineWidth;
 212    }
 213
 214    if (states & (1 << VK_DYNAMIC_STATE_DEPTH_BIAS)) {
 215       assert(pCreateInfo->pRasterState);
 216       dynamic->depth_bias.bias = pCreateInfo->pRasterState->depthBias;
 217       dynamic->depth_bias.clamp = pCreateInfo->pRasterState->depthBiasClamp;
 218       dynamic->depth_bias.slope_scaled =
 219          pCreateInfo->pRasterState->slopeScaledDepthBias;
 220    }
 221
 222    if (states & (1 << VK_DYNAMIC_STATE_BLEND_CONSTANTS)) {
 223       assert(pCreateInfo->pColorBlendState);
 224       typed_memcpy(dynamic->blend_constants,
 225                    pCreateInfo->pColorBlendState->blendConst, 4);
 226    }
 227
 228    if (states & (1 << VK_DYNAMIC_STATE_DEPTH_BOUNDS)) {
 229       assert(pCreateInfo->pDepthStencilState);
 230       dynamic->depth_bounds.min =
 231          pCreateInfo->pDepthStencilState->minDepthBounds;
 232       dynamic->depth_bounds.max =
 233          pCreateInfo->pDepthStencilState->maxDepthBounds;
 234    }
 235
 236    if (states & (1 << VK_DYNAMIC_STATE_STENCIL_COMPARE_MASK)) {
 237       assert(pCreateInfo->pDepthStencilState);
 238       dynamic->stencil_compare_mask.front =
 239          pCreateInfo->pDepthStencilState->front.stencilCompareMask;
 240       dynamic->stencil_compare_mask.back =
 241          pCreateInfo->pDepthStencilState->back.stencilCompareMask;
 242    }
 243
 244    if (states & (1 << VK_DYNAMIC_STATE_STENCIL_WRITE_MASK)) {
 245       assert(pCreateInfo->pDepthStencilState);
 246       dynamic->stencil_write_mask.front =
 247          pCreateInfo->pDepthStencilState->front.stencilWriteMask;
 248       dynamic->stencil_write_mask.back =
 249          pCreateInfo->pDepthStencilState->back.stencilWriteMask;
 250    }
 251
 252    if (states & (1 << VK_DYNAMIC_STATE_STENCIL_REFERENCE)) {
 253       assert(pCreateInfo->pDepthStencilState);
 254       dynamic->stencil_reference.front =
 255          pCreateInfo->pDepthStencilState->front.stencilReference;
 256       dynamic->stencil_reference.back =
 257          pCreateInfo->pDepthStencilState->back.stencilReference;
 258    }
 259
 260    pipeline->dynamic_state_mask = states;
 261 }
 262
 263 static void
 264 anv_pipeline_validate_create_info(const VkGraphicsPipelineCreateInfo *info)
 265 {
 266    struct anv_render_pass *renderpass = NULL;
 267    struct anv_subpass *subpass = NULL;
 268
 269    /* Assert that all required members of VkGraphicsPipelineCreateInfo are
 270     * present, as explained by the Vulkan (20 Oct 2015, git-aa308cb), Section
 271     * 4.2 Graphics Pipeline.
 272     */
 273    assert(info->sType == VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO);
 274
 275    renderpass = anv_render_pass_from_handle(info->renderPass);
 276    assert(renderpass);
 277
 278    if (renderpass != &anv_meta_dummy_renderpass) {
 279       assert(info->subpass < renderpass->subpass_count);
 280       subpass = &renderpass->subpasses[info->subpass];
 281    }
 282
 283    assert(info->stageCount >= 1);
 284    assert(info->pVertexInputState);
 285    assert(info->pInputAssemblyState);
 286    assert(info->pViewportState);
 287    assert(info->pRasterState);
 288    assert(info->pMultisampleState);
 289
 290    if (subpass && subpass->depth_stencil_attachment != VK_ATTACHMENT_UNUSED)
 291       assert(info->pDepthStencilState);
 292
 293    if (subpass && subpass->color_count > 0)
 294       assert(info->pColorBlendState);
 295
 296    for (uint32_t i = 0; i < info->stageCount; ++i) {
 297       switch (info->pStages[i].stage) {
 298       case VK_SHADER_STAGE_TESS_CONTROL:
 299       case VK_SHADER_STAGE_TESS_EVALUATION:
 300          assert(info->pTessellationState);
 301          break;
 302       default:
 303          break;
 304       }
 305    }
 306 }
 307
 308 VkResult
 309 anv_pipeline_init(struct anv_pipeline *pipeline, struct anv_device *device,
 310                   const VkGraphicsPipelineCreateInfo *pCreateInfo,
 311                   const struct anv_graphics_pipeline_create_info *extra)
 312 {
 313    VkResult result;
 314
 315    anv_validate {
 316       anv_pipeline_validate_create_info(pCreateInfo);
 317    }
 318
 319    pipeline->device = device;
 320    pipeline->layout = anv_pipeline_layout_from_handle(pCreateInfo->layout);
 321    memset(pipeline->shaders, 0, sizeof(pipeline->shaders));
 322
 323    result = anv_reloc_list_init(&pipeline->batch_relocs, device);
 324    if (result != VK_SUCCESS) {
 325       anv_device_free(device, pipeline);
 326       return result;
 327    }
 328    pipeline->batch.next = pipeline->batch.start = pipeline->batch_data;
 329    pipeline->batch.end = pipeline->batch.start + sizeof(pipeline->batch_data);
 330    pipeline->batch.relocs = &pipeline->batch_relocs;
 331
 332    anv_state_stream_init(&pipeline->program_stream,
 333                          &device->instruction_block_pool);
 334
 335    for (uint32_t i = 0; i < pCreateInfo->stageCount; i++) {
 336       pipeline->shaders[pCreateInfo->pStages[i].stage] =
 337          anv_shader_from_handle(pCreateInfo->pStages[i].shader);
 338    }
 339
 340    anv_pipeline_init_dynamic_state(pipeline, pCreateInfo);
 341
 342    if (pCreateInfo->pTessellationState)
 343       anv_finishme("VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_STATE_CREATE_INFO");
 344    if (pCreateInfo->pMultisampleState &&
 345        pCreateInfo->pMultisampleState->rasterSamples > 1)
 346       anv_finishme("VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO");
 347
 348    pipeline->use_repclear = extra && extra->use_repclear;
 349
 350    anv_compiler_run(device->compiler, pipeline);
 351
 352    const struct brw_wm_prog_data *wm_prog_data = &pipeline->wm_prog_data;
 353
 354    pipeline->ps_ksp2 = 0;
 355    pipeline->ps_grf_start2 = 0;
 356    if (pipeline->ps_simd8 != NO_KERNEL) {
 357       pipeline->ps_ksp0 = pipeline->ps_simd8;
 358       pipeline->ps_grf_start0 = wm_prog_data->base.dispatch_grf_start_reg;
 359       if (pipeline->ps_simd16 != NO_KERNEL) {
 360          pipeline->ps_ksp2 = pipeline->ps_simd16;
 361          pipeline->ps_grf_start2 = wm_prog_data->dispatch_grf_start_reg_16;
 362       }
 363    } else if (pipeline->ps_simd16 != NO_KERNEL) {
 364       pipeline->ps_ksp0 = pipeline->ps_simd16;
 365       pipeline->ps_grf_start0 = wm_prog_data->dispatch_grf_start_reg_16;
 366    } else {
 367       unreachable("no ps shader");
 368    }
 369
 370    const VkPipelineVertexInputStateCreateInfo *vi_info =
 371       pCreateInfo->pVertexInputState;
 372    pipeline->vb_used = 0;
 373    for (uint32_t i = 0; i < vi_info->bindingCount; i++) {
 374       const VkVertexInputBindingDescription *desc =
 375          &vi_info->pVertexBindingDescriptions[i];
 376
 377       pipeline->vb_used |= 1 << desc->binding;
 378       pipeline->binding_stride[desc->binding] = desc->strideInBytes;
 379
 380       /* Step rate is programmed per vertex element (attribute), not
 381        * binding. Set up a map of which bindings step per instance, for
 382        * reference by vertex element setup. */
 383       switch (desc->stepRate) {
 384       default:
 385       case VK_VERTEX_INPUT_STEP_RATE_VERTEX:
 386          pipeline->instancing_enable[desc->binding] = false;
 387          break;
 388       case VK_VERTEX_INPUT_STEP_RATE_INSTANCE:
 389          pipeline->instancing_enable[desc->binding] = true;
 390          break;
 391       }
 392    }
 393
 394    const VkPipelineInputAssemblyStateCreateInfo *ia_info =
 395       pCreateInfo->pInputAssemblyState;
 396    pipeline->primitive_restart = ia_info->primitiveRestartEnable;
 397    pipeline->topology = vk_to_gen_primitive_type[ia_info->topology];
 398
 399    if (extra && extra->use_rectlist)
 400       pipeline->topology = _3DPRIM_RECTLIST;
 401
 402    return VK_SUCCESS;
 403 }
 404
 405 VkResult
 406 anv_graphics_pipeline_create(
 407    VkDevice _device,
 408    const VkGraphicsPipelineCreateInfo *pCreateInfo,
 409    const struct anv_graphics_pipeline_create_info *extra,
 410    VkPipeline *pPipeline)
 411 {
 412    ANV_FROM_HANDLE(anv_device, device, _device);
 413
 414    switch (device->info.gen) {
 415    case 7:
 416       return gen7_graphics_pipeline_create(_device, pCreateInfo, extra, pPipeline);
 417    case 8:
 418       return gen8_graphics_pipeline_create(_device, pCreateInfo, extra, pPipeline);
 419    default:
 420       unreachable("unsupported gen\n");
 421    }
 422 }
 423
 424 VkResult anv_CreateGraphicsPipelines(
 425     VkDevice                                    _device,
 426     VkPipelineCache                             pipelineCache,
 427     uint32_t                                    count,
 428     const VkGraphicsPipelineCreateInfo*         pCreateInfos,
 429     VkPipeline*                                 pPipelines)
 430 {
 431    VkResult result = VK_SUCCESS;
 432
 433    unsigned i = 0;
 434    for (; i < count; i++) {
 435       result = anv_graphics_pipeline_create(_device, &pCreateInfos[i],
 436                                             NULL, &pPipelines[i]);
 437       if (result != VK_SUCCESS) {
 438          for (unsigned j = 0; j < i; j++) {
 439             anv_DestroyPipeline(_device, pPipelines[j]);
 440          }
 441
 442          return result;
 443       }
 444    }
 445
 446    return VK_SUCCESS;
 447 }
 448
 449 static VkResult anv_compute_pipeline_create(
 450     VkDevice                                    _device,
 451     const VkComputePipelineCreateInfo*          pCreateInfo,
 452     VkPipeline*                                 pPipeline)
 453 {
 454    ANV_FROM_HANDLE(anv_device, device, _device);
 455
 456    switch (device->info.gen) {
 457    case 7:
 458       return gen7_compute_pipeline_create(_device, pCreateInfo, pPipeline);
 459    case 8:
 460       return gen8_compute_pipeline_create(_device, pCreateInfo, pPipeline);
 461    default:
 462       unreachable("unsupported gen\n");
 463    }
 464 }
 465
 466 VkResult anv_CreateComputePipelines(
 467     VkDevice                                    _device,
 468     VkPipelineCache                             pipelineCache,
 469     uint32_t                                    count,
 470     const VkComputePipelineCreateInfo*          pCreateInfos,
 471     VkPipeline*                                 pPipelines)
 472 {
 473    VkResult result = VK_SUCCESS;
 474
 475    unsigned i = 0;
 476    for (; i < count; i++) {
 477       result = anv_compute_pipeline_create(_device, &pCreateInfos[i],
 478                                            &pPipelines[i]);
 479       if (result != VK_SUCCESS) {
 480          for (unsigned j = 0; j < i; j++) {
 481             anv_DestroyPipeline(_device, pPipelines[j]);
 482          }
 483
 484          return result;
 485       }
 486    }
 487
 488    return VK_SUCCESS;
 489 }
 490
 491 // Pipeline layout functions
 492
 493 VkResult anv_CreatePipelineLayout(
 494     VkDevice                                    _device,
 495     const VkPipelineLayoutCreateInfo*           pCreateInfo,
 496     VkPipelineLayout*                           pPipelineLayout)
 497 {
 498    ANV_FROM_HANDLE(anv_device, device, _device);
 499    struct anv_pipeline_layout l, *layout;
 500
 501    assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO);
 502
 503    l.num_sets = pCreateInfo->descriptorSetCount;
 504
 505    unsigned dynamic_offset_count = 0;
 506
 507    memset(l.stage, 0, sizeof(l.stage));
 508    for (uint32_t set = 0; set < pCreateInfo->descriptorSetCount; set++) {
 509       ANV_FROM_HANDLE(anv_descriptor_set_layout, set_layout,
 510                       pCreateInfo->pSetLayouts[set]);
 511       l.set[set].layout = set_layout;
 512
 513       l.set[set].dynamic_offset_start = dynamic_offset_count;
 514       for (uint32_t b = 0; b < set_layout->binding_count; b++) {
 515          if (set_layout->binding[b].dynamic_offset_index >= 0)
 516             dynamic_offset_count += set_layout->binding[b].array_size;
 517       }
 518
 519       for (VkShaderStage s = 0; s < VK_SHADER_STAGE_NUM; s++) {
 520          l.set[set].stage[s].surface_start = l.stage[s].surface_count;
 521          l.set[set].stage[s].sampler_start = l.stage[s].sampler_count;
 522
 523          for (uint32_t b = 0; b < set_layout->binding_count; b++) {
 524             unsigned array_size = set_layout->binding[b].array_size;
 525
 526             if (set_layout->binding[b].stage[s].surface_index >= 0) {
 527                l.stage[s].surface_count += array_size;
 528
 529                if (set_layout->binding[b].dynamic_offset_index >= 0)
 530                   l.stage[s].has_dynamic_offsets = true;
 531             }
 532
 533             if (set_layout->binding[b].stage[s].sampler_index >= 0)
 534                l.stage[s].sampler_count += array_size;
 535          }
 536       }
 537    }
 538
 539    unsigned num_bindings = 0;
 540    for (VkShaderStage s = 0; s < VK_SHADER_STAGE_NUM; s++)
 541       num_bindings += l.stage[s].surface_count + l.stage[s].sampler_count;
 542
 543    size_t size = sizeof(*layout) + num_bindings * sizeof(layout->entries[0]);
 544
 545    layout = anv_device_alloc(device, size, 8, VK_SYSTEM_ALLOC_TYPE_API_OBJECT);
 546    if (layout == NULL)
 547       return vk_error(VK_ERROR_OUT_OF_HOST_MEMORY);
 548
 549    /* Now we can actually build our surface and sampler maps */
 550    struct anv_pipeline_binding *entry = layout->entries;
 551    for (VkShaderStage s = 0; s < VK_SHADER_STAGE_NUM; s++) {
 552       l.stage[s].surface_to_descriptor = entry;
 553       entry += l.stage[s].surface_count;
 554       l.stage[s].sampler_to_descriptor = entry;
 555       entry += l.stage[s].sampler_count;
 556
 557       int surface = 0;
 558       int sampler = 0;
 559       for (uint32_t set = 0; set < pCreateInfo->descriptorSetCount; set++) {
 560          struct anv_descriptor_set_layout *set_layout = l.set[set].layout;
 561
 562          unsigned set_offset = 0;
 563          for (uint32_t b = 0; b < set_layout->binding_count; b++) {
 564             unsigned array_size = set_layout->binding[b].array_size;
 565
 566             if (set_layout->binding[b].stage[s].surface_index >= 0) {
 567                assert(surface == l.set[set].stage[s].surface_start +
 568                                  set_layout->binding[b].stage[s].surface_index);
 569                for (unsigned i = 0; i < array_size; i++) {
 570                   l.stage[s].surface_to_descriptor[surface + i].set = set;
 571                   l.stage[s].surface_to_descriptor[surface + i].offset = set_offset + i;
 572                }
 573                surface += array_size;
 574             }
 575
 576             if (set_layout->binding[b].stage[s].sampler_index >= 0) {
 577                assert(sampler == l.set[set].stage[s].sampler_start +
 578                                  set_layout->binding[b].stage[s].sampler_index);
 579                for (unsigned i = 0; i < array_size; i++) {
 580                   l.stage[s].sampler_to_descriptor[sampler + i].set = set;
 581                   l.stage[s].sampler_to_descriptor[sampler + i].offset = set_offset + i;
 582                }
 583                sampler += array_size;
 584             }
 585
 586             set_offset += array_size;
 587          }
 588       }
 589    }
 590
 591    /* Finally, we're done setting it up, copy into the allocated version */
 592    *layout = l;
 593
 594    *pPipelineLayout = anv_pipeline_layout_to_handle(layout);
 595
 596    return VK_SUCCESS;
 597 }
 598
 599 void anv_DestroyPipelineLayout(
 600     VkDevice                                    _device,
 601     VkPipelineLayout                            _pipelineLayout)
 602 {
 603    ANV_FROM_HANDLE(anv_device, device, _device);
 604    ANV_FROM_HANDLE(anv_pipeline_layout, pipeline_layout, _pipelineLayout);
 605
 606    anv_device_free(device, pipeline_layout);
 607 }