src/gallium/drivers/zink/zink_screen.c

   1 /*
   2  * Copyright 2018 Collabora Ltd.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "zink_screen.h"
  25
  26 #include "zink_compiler.h"
  27 #include "zink_context.h"
  28 #include "zink_fence.h"
  29 #include "zink_public.h"
  30 #include "zink_resource.h"
  31
  32 #include "os/os_process.h"
  33 #include "util/u_debug.h"
  34 #include "util/format/u_format.h"
  35 #include "util/u_math.h"
  36 #include "util/u_memory.h"
  37 #include "util/u_screen.h"
  38 #include "util/u_string.h"
  39
  40 #include "state_tracker/sw_winsys.h"
  41
  42 static const struct debug_named_value
  43 debug_options[] = {
  44    { "nir", ZINK_DEBUG_NIR, "Dump NIR during program compile" },
  45    { "spirv", ZINK_DEBUG_SPIRV, "Dump SPIR-V during program compile" },
  46    { "tgsi", ZINK_DEBUG_TGSI, "Dump TGSI during program compile" },
  47    DEBUG_NAMED_VALUE_END
  48 };
  49
  50 DEBUG_GET_ONCE_FLAGS_OPTION(zink_debug, "ZINK_DEBUG", debug_options, 0)
  51
  52 uint32_t
  53 zink_debug;
  54
  55 static const char *
  56 zink_get_vendor(struct pipe_screen *pscreen)
  57 {
  58    return "Collabora Ltd";
  59 }
  60
  61 static const char *
  62 zink_get_device_vendor(struct pipe_screen *pscreen)
  63 {
  64    struct zink_screen *screen = zink_screen(pscreen);
  65    static char buf[1000];
  66    snprintf(buf, sizeof(buf), "Unknown (vendor-id: 0x%04x)", screen->props.vendorID);
  67    return buf;
  68 }
  69
  70 static const char *
  71 zink_get_name(struct pipe_screen *pscreen)
  72 {
  73    struct zink_screen *screen = zink_screen(pscreen);
  74    static char buf[1000];
  75    snprintf(buf, sizeof(buf), "zink (%s)", screen->props.deviceName);
  76    return buf;
  77 }
  78
  79 static int
  80 get_video_mem(struct zink_screen *screen)
  81 {
  82    VkDeviceSize size = 0;
  83    for (uint32_t i = 0; i < screen->mem_props.memoryHeapCount; ++i)
  84       size += screen->mem_props.memoryHeaps[i].size;
  85    return (int)(size >> 20);
  86 }
  87
  88 static int
  89 zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  90 {
  91    struct zink_screen *screen = zink_screen(pscreen);
  92
  93    switch (param) {
  94    case PIPE_CAP_NPOT_TEXTURES:
  95       return 1;
  96
  97    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
  98       return screen->props.limits.maxFragmentDualSrcAttachments;
  99
 100    case PIPE_CAP_POINT_SPRITE:
 101       return 1;
 102
 103    case PIPE_CAP_MAX_RENDER_TARGETS:
 104       return screen->props.limits.maxColorAttachments;
 105
 106    case PIPE_CAP_OCCLUSION_QUERY:
 107       return 1;
 108
 109 #if 0 /* TODO: Enable me */
 110    case PIPE_CAP_QUERY_TIME_ELAPSED:
 111       return 1;
 112 #endif
 113
 114    case PIPE_CAP_TEXTURE_SWIZZLE:
 115       return 1;
 116
 117    case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 118       return screen->props.limits.maxImageDimension2D;
 119    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 120       return 1 + util_logbase2(screen->props.limits.maxImageDimension3D);
 121    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 122       return 1 + util_logbase2(screen->props.limits.maxImageDimensionCube);
 123
 124    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 125    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 126    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 127    case PIPE_CAP_VERTEX_SHADER_SATURATE:
 128       return 1;
 129
 130    case PIPE_CAP_INDEP_BLEND_ENABLE:
 131    case PIPE_CAP_INDEP_BLEND_FUNC:
 132       return 1;
 133
 134    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 135       return screen->props.limits.maxImageArrayLayers;
 136
 137 #if 0 /* TODO: Enable me */
 138    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 139       return 0;
 140 #endif
 141
 142    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 143       return 1;
 144
 145    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 146       return 1;
 147
 148    case PIPE_CAP_MIN_TEXEL_OFFSET:
 149       return screen->props.limits.minTexelOffset;
 150    case PIPE_CAP_MAX_TEXEL_OFFSET:
 151       return screen->props.limits.maxTexelOffset;
 152
 153    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 154       return 1;
 155
 156    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 157    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 158       return 120;
 159
 160 #if 0 /* TODO: Enable me */
 161    case PIPE_CAP_COMPUTE:
 162       return 1;
 163 #endif
 164
 165    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 166       return screen->props.limits.minUniformBufferOffsetAlignment;
 167
 168 #if 0 /* TODO: Enable me */
 169    case PIPE_CAP_QUERY_TIMESTAMP:
 170       return 1;
 171 #endif
 172
 173    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 174       return screen->props.limits.minMemoryMapAlignment;
 175
 176    case PIPE_CAP_CUBE_MAP_ARRAY:
 177       return screen->feats.imageCubeArray;
 178
 179    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 180       return 1;
 181
 182    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 183       return screen->props.limits.minTexelBufferOffsetAlignment;
 184
 185    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 186       return 0; /* unsure */
 187
 188    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 189       return screen->props.limits.maxTexelBufferElements;
 190
 191    case PIPE_CAP_ENDIANNESS:
 192       return PIPE_ENDIAN_NATIVE; /* unsure */
 193
 194    case PIPE_CAP_MAX_VIEWPORTS:
 195       return screen->props.limits.maxViewports;
 196
 197    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 198       return 1;
 199
 200    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 201       return screen->props.limits.maxGeometryOutputVertices;
 202    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 203       return screen->props.limits.maxGeometryOutputComponents;
 204
 205 #if 0 /* TODO: Enable me. Enables ARB_texture_gather */
 206    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 207       return 4;
 208 #endif
 209
 210    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 211       return screen->props.limits.minTexelGatherOffset;
 212    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 213       return screen->props.limits.maxTexelGatherOffset;
 214
 215    case PIPE_CAP_VENDOR_ID:
 216       return screen->props.vendorID;
 217    case PIPE_CAP_DEVICE_ID:
 218       return screen->props.deviceID;
 219
 220    case PIPE_CAP_ACCELERATED:
 221       return 1;
 222    case PIPE_CAP_VIDEO_MEMORY:
 223       return get_video_mem(screen);
 224    case PIPE_CAP_UMA:
 225       return screen->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
 226
 227    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 228       return screen->props.limits.maxVertexInputBindingStride;
 229
 230 #if 0 /* TODO: Enable me */
 231    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 232       return 1;
 233 #endif
 234
 235 #if 0 /* TODO: Enable me */
 236    case PIPE_CAP_CLIP_HALFZ:
 237       return 1;
 238 #endif
 239
 240 #if 0 /* TODO: Enable me */
 241    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 242    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 243       return 1;
 244 #endif
 245
 246    case PIPE_CAP_SHAREABLE_SHADERS:
 247       return 1;
 248
 249 #if 0 /* TODO: Enable me. Enables GL_ARB_shader_storage_buffer_object */
 250    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 251       return screen->props.limits.minStorageBufferOffsetAlignment;
 252 #endif
 253
 254    case PIPE_CAP_PCI_GROUP:
 255    case PIPE_CAP_PCI_BUS:
 256    case PIPE_CAP_PCI_DEVICE:
 257    case PIPE_CAP_PCI_FUNCTION:
 258       return 0; /* TODO: figure these out */
 259
 260 #if 0 /* TODO: Enable me */
 261    case PIPE_CAP_CULL_DISTANCE:
 262       return screen->feats.shaderCullDistance;
 263 #endif
 264
 265    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 266       return screen->props.limits.viewportSubPixelBits;
 267
 268    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 269       return 0; /* not sure */
 270
 271    case PIPE_CAP_MAX_GS_INVOCATIONS:
 272       return 0; /* not implemented */
 273
 274    case PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS:
 275       return screen->props.limits.maxDescriptorSetStorageBuffers;
 276
 277    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 278       return screen->props.limits.maxStorageBufferRange; /* unsure */
 279
 280    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 281    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 282       return 1;
 283
 284    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 285    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 286       return 0;
 287
 288    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 289       return 0;
 290
 291    case PIPE_CAP_NIR_COMPACT_ARRAYS:
 292       return 1;
 293
 294    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 295       return 1;
 296
 297    case PIPE_CAP_FLATSHADE:
 298    case PIPE_CAP_ALPHA_TEST:
 299    case PIPE_CAP_CLIP_PLANES:
 300    case PIPE_CAP_POINT_SIZE_FIXED:
 301    case PIPE_CAP_TWO_SIDED_COLOR:
 302       return 0;
 303
 304    case PIPE_CAP_DMABUF:
 305       return screen->have_KHR_external_memory_fd;
 306
 307    default:
 308       return u_pipe_screen_get_param_defaults(pscreen, param);
 309    }
 310 }
 311
 312 static float
 313 zink_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 314 {
 315    struct zink_screen *screen = zink_screen(pscreen);
 316
 317    switch (param) {
 318    case PIPE_CAPF_MAX_LINE_WIDTH:
 319    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 320       return screen->props.limits.lineWidthRange[1];
 321
 322    case PIPE_CAPF_MAX_POINT_WIDTH:
 323    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 324       return screen->props.limits.pointSizeRange[1];
 325
 326    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 327       return screen->props.limits.maxSamplerAnisotropy;
 328
 329    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 330       return screen->props.limits.maxSamplerLodBias;
 331
 332    case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 333    case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 334    case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 335       return 0.0f; /* not implemented */
 336    }
 337
 338    /* should only get here on unhandled cases */
 339    return 0.0;
 340 }
 341
 342 static int
 343 zink_get_shader_param(struct pipe_screen *pscreen,
 344                        enum pipe_shader_type shader,
 345                        enum pipe_shader_cap param)
 346 {
 347    struct zink_screen *screen = zink_screen(pscreen);
 348
 349    switch (param) {
 350    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 351    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 352    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 353    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 354    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 355       if (shader == PIPE_SHADER_VERTEX ||
 356           shader == PIPE_SHADER_FRAGMENT)
 357          return INT_MAX;
 358       return 0;
 359
 360    case PIPE_SHADER_CAP_MAX_INPUTS:
 361       switch (shader) {
 362       case PIPE_SHADER_VERTEX:
 363          return MIN2(screen->props.limits.maxVertexInputAttributes,
 364                      PIPE_MAX_SHADER_INPUTS);
 365       case PIPE_SHADER_FRAGMENT:
 366          return MIN2(screen->props.limits.maxFragmentInputComponents / 4,
 367                      PIPE_MAX_SHADER_INPUTS);
 368       default:
 369          return 0; /* unsupported stage */
 370       }
 371
 372    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 373       switch (shader) {
 374       case PIPE_SHADER_VERTEX:
 375          return MIN2(screen->props.limits.maxVertexOutputComponents / 4,
 376                      PIPE_MAX_SHADER_OUTPUTS);
 377       case PIPE_SHADER_FRAGMENT:
 378          return MIN2(screen->props.limits.maxColorAttachments,
 379                 PIPE_MAX_SHADER_OUTPUTS);
 380       default:
 381          return 0; /* unsupported stage */
 382       }
 383
 384    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 385       /* this might be a bit simplistic... */
 386       return MIN2(screen->props.limits.maxPerStageDescriptorSamplers,
 387                   PIPE_MAX_SAMPLERS);
 388
 389    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 390       return MIN2(screen->props.limits.maxUniformBufferRange, INT_MAX);
 391
 392    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 393       return screen->props.limits.maxPerStageDescriptorUniformBuffers;
 394
 395    case PIPE_SHADER_CAP_MAX_TEMPS:
 396       return INT_MAX;
 397
 398    case PIPE_SHADER_CAP_INTEGERS:
 399       return 1;
 400
 401    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 402    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 403    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 404    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 405    case PIPE_SHADER_CAP_SUBROUTINES:
 406    case PIPE_SHADER_CAP_INT64_ATOMICS:
 407    case PIPE_SHADER_CAP_FP16:
 408       return 0; /* not implemented */
 409
 410    case PIPE_SHADER_CAP_PREFERRED_IR:
 411       return PIPE_SHADER_IR_NIR;
 412
 413    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 414       return 0; /* not implemented */
 415
 416    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 417       return MIN2(screen->props.limits.maxPerStageDescriptorSampledImages,
 418                   PIPE_MAX_SHADER_SAMPLER_VIEWS);
 419
 420    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 421    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 422    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 423       return 0; /* not implemented */
 424
 425    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 426       return 0; /* no idea */
 427
 428    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 429       return 32; /* arbitrary */
 430
 431    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 432       /* TODO: this limitation is dumb, and will need some fixes in mesa */
 433       return MIN2(screen->props.limits.maxPerStageDescriptorStorageBuffers, 8);
 434
 435    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 436       return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
 437
 438    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 439       return MIN2(screen->props.limits.maxPerStageDescriptorStorageImages,
 440                   PIPE_MAX_SHADER_IMAGES);
 441
 442    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 443    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 444       return 0; /* unsure */
 445
 446    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 447    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 448    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 449    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 450       return 0; /* not implemented */
 451    }
 452
 453    /* should only get here on unhandled cases */
 454    return 0;
 455 }
 456
 457 static VkSampleCountFlagBits
 458 vk_sample_count_flags(uint32_t sample_count)
 459 {
 460    switch (sample_count) {
 461    case 1: return VK_SAMPLE_COUNT_1_BIT;
 462    case 2: return VK_SAMPLE_COUNT_2_BIT;
 463    case 4: return VK_SAMPLE_COUNT_4_BIT;
 464    case 8: return VK_SAMPLE_COUNT_8_BIT;
 465    case 16: return VK_SAMPLE_COUNT_16_BIT;
 466    case 32: return VK_SAMPLE_COUNT_32_BIT;
 467    case 64: return VK_SAMPLE_COUNT_64_BIT;
 468    default:
 469       return 0;
 470    }
 471 }
 472
 473 static bool
 474 zink_is_format_supported(struct pipe_screen *pscreen,
 475                          enum pipe_format format,
 476                          enum pipe_texture_target target,
 477                          unsigned sample_count,
 478                          unsigned storage_sample_count,
 479                          unsigned bind)
 480 {
 481    struct zink_screen *screen = zink_screen(pscreen);
 482
 483    if (format == PIPE_FORMAT_NONE)
 484       return screen->props.limits.framebufferNoAttachmentsSampleCounts &
 485              vk_sample_count_flags(sample_count);
 486
 487    VkFormat vkformat = zink_get_format(screen, format);
 488    if (vkformat == VK_FORMAT_UNDEFINED)
 489       return false;
 490
 491    if (sample_count >= 1) {
 492       VkSampleCountFlagBits sample_mask = vk_sample_count_flags(sample_count);
 493       if (!sample_mask)
 494          return false;
 495       const struct util_format_description *desc = util_format_description(format);
 496       if (util_format_is_depth_or_stencil(format)) {
 497          if (util_format_has_depth(desc)) {
 498             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 499                 (screen->props.limits.framebufferDepthSampleCounts & sample_mask) != sample_mask)
 500                return false;
 501             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 502                 (screen->props.limits.sampledImageDepthSampleCounts & sample_mask) != sample_mask)
 503                return false;
 504          }
 505          if (util_format_has_stencil(desc)) {
 506             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 507                 (screen->props.limits.framebufferStencilSampleCounts & sample_mask) != sample_mask)
 508                return false;
 509             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 510                 (screen->props.limits.sampledImageStencilSampleCounts & sample_mask) != sample_mask)
 511                return false;
 512          }
 513       } else if (util_format_is_pure_integer(format)) {
 514          if (bind & PIPE_BIND_RENDER_TARGET &&
 515              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 516             return false;
 517          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 518              !(screen->props.limits.sampledImageIntegerSampleCounts & sample_mask))
 519             return false;
 520       } else {
 521          if (bind & PIPE_BIND_RENDER_TARGET &&
 522              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 523             return false;
 524          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 525              !(screen->props.limits.sampledImageColorSampleCounts & sample_mask))
 526             return false;
 527       }
 528    }
 529
 530    VkFormatProperties props;
 531    vkGetPhysicalDeviceFormatProperties(screen->pdev, vkformat, &props);
 532
 533    if (target == PIPE_BUFFER) {
 534       if (bind & PIPE_BIND_VERTEX_BUFFER &&
 535           !(props.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT))
 536          return false;
 537    } else {
 538       /* all other targets are texture-targets */
 539       if (bind & PIPE_BIND_RENDER_TARGET &&
 540           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 541          return false;
 542
 543       if (bind & PIPE_BIND_BLENDABLE &&
 544          !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
 545         return false;
 546
 547       if (bind & PIPE_BIND_SAMPLER_VIEW &&
 548           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
 549          return false;
 550
 551       if (bind & PIPE_BIND_DEPTH_STENCIL &&
 552           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
 553          return false;
 554    }
 555
 556    if (util_format_is_compressed(format)) {
 557       const struct util_format_description *desc = util_format_description(format);
 558       if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC &&
 559           !screen->feats.textureCompressionBC)
 560          return false;
 561    }
 562
 563    return true;
 564 }
 565
 566 static void
 567 zink_destroy_screen(struct pipe_screen *pscreen)
 568 {
 569    struct zink_screen *screen = zink_screen(pscreen);
 570    slab_destroy_parent(&screen->transfer_pool);
 571    FREE(screen);
 572 }
 573
 574 static VkInstance
 575 create_instance()
 576 {
 577    VkApplicationInfo ai = {};
 578    ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 579
 580    char proc_name[128];
 581    if (os_get_process_name(proc_name, ARRAY_SIZE(proc_name)))
 582       ai.pApplicationName = proc_name;
 583    else
 584       ai.pApplicationName = "unknown";
 585
 586    ai.pEngineName = "mesa zink";
 587    ai.apiVersion = VK_API_VERSION_1_0;
 588
 589    const char *extensions[] = {
 590       VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
 591       VK_KHR_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
 592    };
 593
 594    VkInstanceCreateInfo ici = {};
 595    ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 596    ici.pApplicationInfo = &ai;
 597    ici.ppEnabledExtensionNames = extensions;
 598    ici.enabledExtensionCount = ARRAY_SIZE(extensions);
 599
 600    VkInstance instance = VK_NULL_HANDLE;
 601    VkResult err = vkCreateInstance(&ici, NULL, &instance);
 602    if (err != VK_SUCCESS)
 603       return VK_NULL_HANDLE;
 604
 605    return instance;
 606 }
 607
 608 static VkPhysicalDevice
 609 choose_pdev(const VkInstance instance)
 610 {
 611    uint32_t i, pdev_count;
 612    VkPhysicalDevice *pdevs, pdev;
 613    vkEnumeratePhysicalDevices(instance, &pdev_count, NULL);
 614    assert(pdev_count > 0);
 615
 616    pdevs = malloc(sizeof(*pdevs) * pdev_count);
 617    vkEnumeratePhysicalDevices(instance, &pdev_count, pdevs);
 618    assert(pdev_count > 0);
 619
 620    pdev = pdevs[0];
 621    for (i = 0; i < pdev_count; ++i) {
 622       VkPhysicalDeviceProperties props;
 623       vkGetPhysicalDeviceProperties(pdevs[i], &props);
 624       if (props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
 625          pdev = pdevs[i];
 626          break;
 627       }
 628    }
 629    free(pdevs);
 630    return pdev;
 631 }
 632
 633 static uint32_t
 634 find_gfx_queue(const VkPhysicalDevice pdev)
 635 {
 636    uint32_t num_queues;
 637    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, NULL);
 638    assert(num_queues > 0);
 639
 640    VkQueueFamilyProperties *props = malloc(sizeof(*props) * num_queues);
 641    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, props);
 642
 643    for (uint32_t i = 0; i < num_queues; i++) {
 644       if (props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 645          free(props);
 646          return i;
 647       }
 648    }
 649
 650    return UINT32_MAX;
 651 }
 652
 653 static void
 654 zink_flush_frontbuffer(struct pipe_screen *pscreen,
 655                        struct pipe_resource *pres,
 656                        unsigned level, unsigned layer,
 657                        void *winsys_drawable_handle,
 658                        struct pipe_box *sub_box)
 659 {
 660    struct zink_screen *screen = zink_screen(pscreen);
 661    struct sw_winsys *winsys = screen->winsys;
 662    struct zink_resource *res = zink_resource(pres);
 663
 664    if (!winsys)
 665      return;
 666    void *map = winsys->displaytarget_map(winsys, res->dt, 0);
 667
 668    if (map) {
 669       VkImageSubresource isr = {};
 670       isr.aspectMask = res->aspect;
 671       isr.mipLevel = level;
 672       isr.arrayLayer = layer;
 673       VkSubresourceLayout layout;
 674       vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &layout);
 675
 676       void *ptr;
 677       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 678       if (result != VK_SUCCESS) {
 679          debug_printf("failed to map memory for display\n");
 680          return;
 681       }
 682       for (int i = 0; i < pres->height0; ++i) {
 683          uint8_t *src = (uint8_t *)ptr + i * layout.rowPitch;
 684          uint8_t *dst = (uint8_t *)map + i * res->dt_stride;
 685          memcpy(dst, src, res->dt_stride);
 686       }
 687       vkUnmapMemory(screen->dev, res->mem);
 688    }
 689
 690    winsys->displaytarget_unmap(winsys, res->dt);
 691
 692    assert(res->dt);
 693    if (res->dt)
 694       winsys->displaytarget_display(winsys, res->dt, winsys_drawable_handle, sub_box);
 695 }
 696
 697 static struct pipe_screen *
 698 zink_internal_create_screen(struct sw_winsys *winsys, int fd)
 699 {
 700    struct zink_screen *screen = CALLOC_STRUCT(zink_screen);
 701    if (!screen)
 702       return NULL;
 703
 704    zink_debug = debug_get_option_zink_debug();
 705
 706    screen->instance = create_instance();
 707    screen->pdev = choose_pdev(screen->instance);
 708    screen->gfx_queue = find_gfx_queue(screen->pdev);
 709
 710    vkGetPhysicalDeviceProperties(screen->pdev, &screen->props);
 711    vkGetPhysicalDeviceFeatures(screen->pdev, &screen->feats);
 712    vkGetPhysicalDeviceMemoryProperties(screen->pdev, &screen->mem_props);
 713
 714    screen->have_X8_D24_UNORM_PACK32 = zink_is_depth_format_supported(screen,
 715                                               VK_FORMAT_X8_D24_UNORM_PACK32);
 716    screen->have_D24_UNORM_S8_UINT = zink_is_depth_format_supported(screen,
 717                                               VK_FORMAT_D24_UNORM_S8_UINT);
 718
 719    uint32_t num_extensions = 0;
 720    if (vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 721        &num_extensions, NULL) == VK_SUCCESS && num_extensions > 0) {
 722       VkExtensionProperties *extensions = MALLOC(sizeof(VkExtensionProperties) *
 723                                                 num_extensions);
 724       if (extensions) {
 725          vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 726                                               &num_extensions, extensions);
 727
 728          for (uint32_t  i = 0; i < num_extensions; ++i) {
 729             if (!strcmp(extensions[i].extensionName,
 730                         VK_KHR_MAINTENANCE1_EXTENSION_NAME))
 731                screen->have_KHR_maintenance1 = true;
 732             if (!strcmp(extensions[i].extensionName,
 733                         VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME))
 734                screen->have_KHR_external_memory_fd = true;
 735          }
 736          FREE(extensions);
 737       }
 738    }
 739
 740    if (!screen->have_KHR_maintenance1) {
 741       debug_printf("ZINK: VK_KHR_maintenance1 required!\n");
 742       goto fail;
 743    }
 744
 745    VkDeviceQueueCreateInfo qci = {};
 746    float dummy = 0.0f;
 747    qci.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 748    qci.queueFamilyIndex = screen->gfx_queue;
 749    qci.queueCount = 1;
 750    qci.pQueuePriorities = &dummy;
 751
 752    VkDeviceCreateInfo dci = {};
 753    dci.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 754    dci.queueCreateInfoCount = 1;
 755    dci.pQueueCreateInfos = &qci;
 756    dci.pEnabledFeatures = &screen->feats;
 757    const char *extensions[3] = {
 758       VK_KHR_MAINTENANCE1_EXTENSION_NAME,
 759    };
 760    num_extensions = 1;
 761
 762    if (fd >= 0 && !screen->have_KHR_external_memory_fd) {
 763       debug_printf("ZINK: KHR_external_memory_fd required!\n");
 764       goto fail;
 765    }
 766
 767    if (screen->have_KHR_external_memory_fd) {
 768       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME;
 769       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME;
 770    }
 771    assert(num_extensions <= ARRAY_SIZE(extensions));
 772
 773    dci.ppEnabledExtensionNames = extensions;
 774    dci.enabledExtensionCount = num_extensions;
 775    if (vkCreateDevice(screen->pdev, &dci, NULL, &screen->dev) != VK_SUCCESS)
 776       goto fail;
 777
 778    screen->winsys = winsys;
 779
 780    screen->base.get_name = zink_get_name;
 781    screen->base.get_vendor = zink_get_vendor;
 782    screen->base.get_device_vendor = zink_get_device_vendor;
 783    screen->base.get_param = zink_get_param;
 784    screen->base.get_paramf = zink_get_paramf;
 785    screen->base.get_shader_param = zink_get_shader_param;
 786    screen->base.get_compiler_options = zink_get_compiler_options;
 787    screen->base.is_format_supported = zink_is_format_supported;
 788    screen->base.context_create = zink_context_create;
 789    screen->base.flush_frontbuffer = zink_flush_frontbuffer;
 790    screen->base.destroy = zink_destroy_screen;
 791
 792    zink_screen_resource_init(&screen->base);
 793    zink_screen_fence_init(&screen->base);
 794
 795    slab_create_parent(&screen->transfer_pool, sizeof(struct zink_transfer), 16);
 796
 797    return &screen->base;
 798
 799 fail:
 800    FREE(screen);
 801    return NULL;
 802 }
 803
 804 struct pipe_screen *
 805 zink_create_screen(struct sw_winsys *winsys)
 806 {
 807    return zink_internal_create_screen(winsys, -1);
 808 }
 809
 810 struct pipe_screen *
 811 zink_drm_create_screen(int fd)
 812 {
 813    return zink_internal_create_screen(NULL, fd);
 814 }