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 "frontend/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       if (screen->mem_props.memoryHeaps[i].flags &
  85           VK_MEMORY_HEAP_DEVICE_LOCAL_BIT)
  86          size += screen->mem_props.memoryHeaps[i].size;
  87    }
  88    return (int)(size >> 20);
  89 }
  90
  91 static int
  92 zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  93 {
  94    struct zink_screen *screen = zink_screen(pscreen);
  95
  96    switch (param) {
  97    case PIPE_CAP_NPOT_TEXTURES:
  98    case PIPE_CAP_TGSI_TEXCOORD:
  99       return 1;
 100
 101    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 102       if (!screen->feats.dualSrcBlend)
 103          return 0;
 104       return screen->props.limits.maxFragmentDualSrcAttachments;
 105
 106    case PIPE_CAP_POINT_SPRITE:
 107       return 1;
 108
 109    case PIPE_CAP_MAX_RENDER_TARGETS:
 110       return screen->props.limits.maxColorAttachments;
 111
 112    case PIPE_CAP_OCCLUSION_QUERY:
 113       return 1;
 114
 115 #if 0 /* TODO: Enable me */
 116    case PIPE_CAP_QUERY_TIME_ELAPSED:
 117       return 1;
 118 #endif
 119
 120    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 121       return 1;
 122
 123    case PIPE_CAP_TEXTURE_SWIZZLE:
 124       return 1;
 125
 126    case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 127       return screen->props.limits.maxImageDimension2D;
 128    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 129       return 1 + util_logbase2(screen->props.limits.maxImageDimension3D);
 130    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 131       return 1 + util_logbase2(screen->props.limits.maxImageDimensionCube);
 132
 133    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 134    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 135    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 136    case PIPE_CAP_VERTEX_SHADER_SATURATE:
 137       return 1;
 138
 139    case PIPE_CAP_INDEP_BLEND_ENABLE:
 140    case PIPE_CAP_INDEP_BLEND_FUNC:
 141       return 1;
 142
 143    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 144       return screen->have_EXT_transform_feedback ? screen->tf_props.maxTransformFeedbackBuffers : 0;
 145    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 146    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 147       return 1;
 148
 149    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 150       return screen->props.limits.maxImageArrayLayers;
 151
 152    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 153       return screen->feats.depthClamp;
 154
 155    case PIPE_CAP_TGSI_INSTANCEID:
 156    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 157    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 158       return 1;
 159
 160    case PIPE_CAP_MIN_TEXEL_OFFSET:
 161       return screen->props.limits.minTexelOffset;
 162    case PIPE_CAP_MAX_TEXEL_OFFSET:
 163       return screen->props.limits.maxTexelOffset;
 164
 165    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 166       return 1;
 167
 168    case PIPE_CAP_CONDITIONAL_RENDER:
 169      return screen->have_EXT_conditional_rendering;
 170
 171    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 172    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 173       return 130;
 174
 175 #if 0 /* TODO: Enable me */
 176    case PIPE_CAP_COMPUTE:
 177       return 1;
 178 #endif
 179
 180    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 181       return screen->props.limits.minUniformBufferOffsetAlignment;
 182
 183 #if 0 /* TODO: Enable me */
 184    case PIPE_CAP_QUERY_TIMESTAMP:
 185       return 1;
 186 #endif
 187
 188    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 189       return screen->props.limits.minMemoryMapAlignment;
 190
 191    case PIPE_CAP_CUBE_MAP_ARRAY:
 192       return screen->feats.imageCubeArray;
 193
 194    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 195       return 1;
 196
 197    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 198       return screen->props.limits.minTexelBufferOffsetAlignment;
 199
 200    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 201       return 0; /* unsure */
 202
 203    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 204       return screen->props.limits.maxTexelBufferElements;
 205
 206    case PIPE_CAP_ENDIANNESS:
 207       return PIPE_ENDIAN_NATIVE; /* unsure */
 208
 209    case PIPE_CAP_MAX_VIEWPORTS:
 210       return 1; /* TODO: When GS is supported, use screen->props.limits.maxViewports */
 211
 212    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 213       return 1;
 214
 215    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 216       return screen->props.limits.maxGeometryOutputVertices;
 217    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 218       return screen->props.limits.maxGeometryOutputComponents;
 219
 220 #if 0 /* TODO: Enable me. Enables ARB_texture_gather */
 221    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 222       return 4;
 223 #endif
 224
 225    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 226       return screen->props.limits.minTexelGatherOffset;
 227    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 228       return screen->props.limits.maxTexelGatherOffset;
 229
 230    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 231       return 1;
 232
 233    case PIPE_CAP_VENDOR_ID:
 234       return screen->props.vendorID;
 235    case PIPE_CAP_DEVICE_ID:
 236       return screen->props.deviceID;
 237
 238    case PIPE_CAP_ACCELERATED:
 239       return 1;
 240    case PIPE_CAP_VIDEO_MEMORY:
 241       return get_video_mem(screen);
 242    case PIPE_CAP_UMA:
 243       return screen->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU;
 244
 245    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 246       return screen->props.limits.maxVertexInputBindingStride;
 247
 248 #if 0 /* TODO: Enable me */
 249    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 250       return 1;
 251 #endif
 252
 253 #if 0 /* TODO: Enable me */
 254    case PIPE_CAP_CLIP_HALFZ:
 255       return 1;
 256 #endif
 257
 258 #if 0 /* TODO: Enable me */
 259    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 260    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 261       return 1;
 262 #endif
 263
 264    case PIPE_CAP_SHAREABLE_SHADERS:
 265       return 1;
 266
 267 #if 0 /* TODO: Enable me. Enables GL_ARB_shader_storage_buffer_object */
 268    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 269       return screen->props.limits.minStorageBufferOffsetAlignment;
 270 #endif
 271
 272    case PIPE_CAP_PCI_GROUP:
 273    case PIPE_CAP_PCI_BUS:
 274    case PIPE_CAP_PCI_DEVICE:
 275    case PIPE_CAP_PCI_FUNCTION:
 276       return 0; /* TODO: figure these out */
 277
 278    case PIPE_CAP_CULL_DISTANCE:
 279       return screen->feats.shaderCullDistance;
 280
 281    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 282       return screen->props.limits.viewportSubPixelBits;
 283
 284    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 285       return 0; /* not sure */
 286
 287    case PIPE_CAP_MAX_GS_INVOCATIONS:
 288       return 0; /* not implemented */
 289
 290    case PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS:
 291       return screen->props.limits.maxDescriptorSetStorageBuffers;
 292
 293    case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 294       return screen->props.limits.maxStorageBufferRange; /* unsure */
 295
 296    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 297    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 298       return 1;
 299
 300    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 301    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 302       return 0;
 303
 304    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 305       return 0;
 306
 307    case PIPE_CAP_NIR_COMPACT_ARRAYS:
 308       return 1;
 309
 310    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 311       return 1;
 312
 313    case PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED:
 314       return 1;
 315
 316    case PIPE_CAP_FLATSHADE:
 317    case PIPE_CAP_ALPHA_TEST:
 318    case PIPE_CAP_CLIP_PLANES:
 319    case PIPE_CAP_POINT_SIZE_FIXED:
 320    case PIPE_CAP_TWO_SIDED_COLOR:
 321       return 0;
 322
 323    case PIPE_CAP_DMABUF:
 324       return screen->have_KHR_external_memory_fd;
 325
 326    default:
 327       return u_pipe_screen_get_param_defaults(pscreen, param);
 328    }
 329 }
 330
 331 static float
 332 zink_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 333 {
 334    struct zink_screen *screen = zink_screen(pscreen);
 335
 336    switch (param) {
 337    case PIPE_CAPF_MAX_LINE_WIDTH:
 338    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 339       return screen->props.limits.lineWidthRange[1];
 340
 341    case PIPE_CAPF_MAX_POINT_WIDTH:
 342    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 343       return screen->props.limits.pointSizeRange[1];
 344
 345    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 346       return screen->props.limits.maxSamplerAnisotropy;
 347
 348    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 349       return screen->props.limits.maxSamplerLodBias;
 350
 351    case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 352    case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 353    case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 354       return 0.0f; /* not implemented */
 355    }
 356
 357    /* should only get here on unhandled cases */
 358    return 0.0;
 359 }
 360
 361 static int
 362 zink_get_shader_param(struct pipe_screen *pscreen,
 363                        enum pipe_shader_type shader,
 364                        enum pipe_shader_cap param)
 365 {
 366    struct zink_screen *screen = zink_screen(pscreen);
 367
 368    switch (param) {
 369    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 370    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 371    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 372    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 373    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 374       if (shader == PIPE_SHADER_VERTEX ||
 375           shader == PIPE_SHADER_FRAGMENT)
 376          return INT_MAX;
 377       return 0;
 378
 379    case PIPE_SHADER_CAP_MAX_INPUTS:
 380       switch (shader) {
 381       case PIPE_SHADER_VERTEX:
 382          return MIN2(screen->props.limits.maxVertexInputAttributes,
 383                      PIPE_MAX_SHADER_INPUTS);
 384       case PIPE_SHADER_FRAGMENT:
 385          return MIN2(screen->props.limits.maxFragmentInputComponents / 4,
 386                      PIPE_MAX_SHADER_INPUTS);
 387       default:
 388          return 0; /* unsupported stage */
 389       }
 390
 391    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 392       switch (shader) {
 393       case PIPE_SHADER_VERTEX:
 394          return MIN2(screen->props.limits.maxVertexOutputComponents / 4,
 395                      PIPE_MAX_SHADER_OUTPUTS);
 396       case PIPE_SHADER_FRAGMENT:
 397          return MIN2(screen->props.limits.maxColorAttachments,
 398                 PIPE_MAX_SHADER_OUTPUTS);
 399       default:
 400          return 0; /* unsupported stage */
 401       }
 402
 403    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 404       switch (shader) {
 405       case PIPE_SHADER_VERTEX:
 406       case PIPE_SHADER_FRAGMENT:
 407          /* this might be a bit simplistic... */
 408          return MIN2(screen->props.limits.maxPerStageDescriptorSamplers,
 409                      PIPE_MAX_SAMPLERS);
 410       default:
 411          return 0; /* unsupported stage */
 412       }
 413
 414    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 415       return MIN2(screen->props.limits.maxUniformBufferRange, INT_MAX);
 416
 417    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 418       return screen->props.limits.maxPerStageDescriptorUniformBuffers;
 419
 420    case PIPE_SHADER_CAP_MAX_TEMPS:
 421       return INT_MAX;
 422
 423    case PIPE_SHADER_CAP_INTEGERS:
 424       return 1;
 425
 426    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 427    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 428    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 429    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 430    case PIPE_SHADER_CAP_SUBROUTINES:
 431    case PIPE_SHADER_CAP_INT64_ATOMICS:
 432    case PIPE_SHADER_CAP_FP16:
 433    case PIPE_SHADER_CAP_FP16_DERIVATIVES:
 434    case PIPE_SHADER_CAP_INT16:
 435    case PIPE_SHADER_CAP_GLSL_16BIT_TEMPS:
 436       return 0; /* not implemented */
 437
 438    case PIPE_SHADER_CAP_PREFERRED_IR:
 439       return PIPE_SHADER_IR_NIR;
 440
 441    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 442       return 0; /* not implemented */
 443
 444    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 445       return MIN2(screen->props.limits.maxPerStageDescriptorSampledImages,
 446                   PIPE_MAX_SHADER_SAMPLER_VIEWS);
 447
 448    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 449    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 450    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 451       return 0; /* not implemented */
 452
 453    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 454       return 0; /* no idea */
 455
 456    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 457       return 32; /* arbitrary */
 458
 459    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 460       /* TODO: this limitation is dumb, and will need some fixes in mesa */
 461       return MIN2(screen->props.limits.maxPerStageDescriptorStorageBuffers, PIPE_MAX_SHADER_BUFFERS);
 462
 463    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 464       return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_TGSI);
 465
 466    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 467 #if 0 /* TODO: needs compiler support */
 468       return MIN2(screen->props.limits.maxPerStageDescriptorStorageImages,
 469                   PIPE_MAX_SHADER_IMAGES);
 470 #else
 471       return 0;
 472 #endif
 473
 474    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 475    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 476       return 0; /* unsure */
 477
 478    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 479    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 480    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 481    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 482       return 0; /* not implemented */
 483    }
 484
 485    /* should only get here on unhandled cases */
 486    return 0;
 487 }
 488
 489 static VkSampleCountFlagBits
 490 vk_sample_count_flags(uint32_t sample_count)
 491 {
 492    switch (sample_count) {
 493    case 1: return VK_SAMPLE_COUNT_1_BIT;
 494    case 2: return VK_SAMPLE_COUNT_2_BIT;
 495    case 4: return VK_SAMPLE_COUNT_4_BIT;
 496    case 8: return VK_SAMPLE_COUNT_8_BIT;
 497    case 16: return VK_SAMPLE_COUNT_16_BIT;
 498    case 32: return VK_SAMPLE_COUNT_32_BIT;
 499    case 64: return VK_SAMPLE_COUNT_64_BIT;
 500    default:
 501       return 0;
 502    }
 503 }
 504
 505 static bool
 506 zink_is_format_supported(struct pipe_screen *pscreen,
 507                          enum pipe_format format,
 508                          enum pipe_texture_target target,
 509                          unsigned sample_count,
 510                          unsigned storage_sample_count,
 511                          unsigned bind)
 512 {
 513    struct zink_screen *screen = zink_screen(pscreen);
 514
 515    if (format == PIPE_FORMAT_NONE)
 516       return screen->props.limits.framebufferNoAttachmentsSampleCounts &
 517              vk_sample_count_flags(sample_count);
 518
 519    VkFormat vkformat = zink_get_format(screen, format);
 520    if (vkformat == VK_FORMAT_UNDEFINED)
 521       return false;
 522
 523    if (sample_count >= 1) {
 524       VkSampleCountFlagBits sample_mask = vk_sample_count_flags(sample_count);
 525       if (!sample_mask)
 526          return false;
 527       const struct util_format_description *desc = util_format_description(format);
 528       if (util_format_is_depth_or_stencil(format)) {
 529          if (util_format_has_depth(desc)) {
 530             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 531                 (screen->props.limits.framebufferDepthSampleCounts & sample_mask) != sample_mask)
 532                return false;
 533             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 534                 (screen->props.limits.sampledImageDepthSampleCounts & sample_mask) != sample_mask)
 535                return false;
 536          }
 537          if (util_format_has_stencil(desc)) {
 538             if (bind & PIPE_BIND_DEPTH_STENCIL &&
 539                 (screen->props.limits.framebufferStencilSampleCounts & sample_mask) != sample_mask)
 540                return false;
 541             if (bind & PIPE_BIND_SAMPLER_VIEW &&
 542                 (screen->props.limits.sampledImageStencilSampleCounts & sample_mask) != sample_mask)
 543                return false;
 544          }
 545       } else if (util_format_is_pure_integer(format)) {
 546          if (bind & PIPE_BIND_RENDER_TARGET &&
 547              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 548             return false;
 549          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 550              !(screen->props.limits.sampledImageIntegerSampleCounts & sample_mask))
 551             return false;
 552       } else {
 553          if (bind & PIPE_BIND_RENDER_TARGET &&
 554              !(screen->props.limits.framebufferColorSampleCounts & sample_mask))
 555             return false;
 556          if (bind & PIPE_BIND_SAMPLER_VIEW &&
 557              !(screen->props.limits.sampledImageColorSampleCounts & sample_mask))
 558             return false;
 559       }
 560    }
 561
 562    VkFormatProperties props;
 563    vkGetPhysicalDeviceFormatProperties(screen->pdev, vkformat, &props);
 564
 565    if (target == PIPE_BUFFER) {
 566       if (bind & PIPE_BIND_VERTEX_BUFFER &&
 567           !(props.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT))
 568          return false;
 569    } else {
 570       /* all other targets are texture-targets */
 571       if (bind & PIPE_BIND_RENDER_TARGET &&
 572           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT))
 573          return false;
 574
 575       if (bind & PIPE_BIND_BLENDABLE &&
 576          !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT))
 577         return false;
 578
 579       if (bind & PIPE_BIND_SAMPLER_VIEW &&
 580           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT))
 581          return false;
 582
 583       if (bind & PIPE_BIND_DEPTH_STENCIL &&
 584           !(props.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT))
 585          return false;
 586    }
 587
 588    if (util_format_is_compressed(format)) {
 589       const struct util_format_description *desc = util_format_description(format);
 590       if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC &&
 591           !screen->feats.textureCompressionBC)
 592          return false;
 593    }
 594
 595    return true;
 596 }
 597
 598 static void
 599 zink_destroy_screen(struct pipe_screen *pscreen)
 600 {
 601    struct zink_screen *screen = zink_screen(pscreen);
 602    slab_destroy_parent(&screen->transfer_pool);
 603    FREE(screen);
 604 }
 605
 606 static VkInstance
 607 create_instance()
 608 {
 609    VkApplicationInfo ai = {};
 610    ai.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
 611
 612    char proc_name[128];
 613    if (os_get_process_name(proc_name, ARRAY_SIZE(proc_name)))
 614       ai.pApplicationName = proc_name;
 615    else
 616       ai.pApplicationName = "unknown";
 617
 618    ai.pEngineName = "mesa zink";
 619    ai.apiVersion = VK_API_VERSION_1_0;
 620
 621    const char *extensions[] = {
 622       VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME,
 623       VK_KHR_EXTERNAL_MEMORY_CAPABILITIES_EXTENSION_NAME,
 624    };
 625
 626    VkInstanceCreateInfo ici = {};
 627    ici.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 628    ici.pApplicationInfo = &ai;
 629    ici.ppEnabledExtensionNames = extensions;
 630    ici.enabledExtensionCount = ARRAY_SIZE(extensions);
 631
 632    VkInstance instance = VK_NULL_HANDLE;
 633    VkResult err = vkCreateInstance(&ici, NULL, &instance);
 634    if (err != VK_SUCCESS)
 635       return VK_NULL_HANDLE;
 636
 637    return instance;
 638 }
 639
 640 static VkPhysicalDevice
 641 choose_pdev(const VkInstance instance)
 642 {
 643    uint32_t i, pdev_count;
 644    VkPhysicalDevice *pdevs, pdev;
 645    vkEnumeratePhysicalDevices(instance, &pdev_count, NULL);
 646    assert(pdev_count > 0);
 647
 648    pdevs = malloc(sizeof(*pdevs) * pdev_count);
 649    vkEnumeratePhysicalDevices(instance, &pdev_count, pdevs);
 650    assert(pdev_count > 0);
 651
 652    pdev = pdevs[0];
 653    for (i = 0; i < pdev_count; ++i) {
 654       VkPhysicalDeviceProperties props;
 655       vkGetPhysicalDeviceProperties(pdevs[i], &props);
 656       if (props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) {
 657          pdev = pdevs[i];
 658          break;
 659       }
 660    }
 661    free(pdevs);
 662    return pdev;
 663 }
 664
 665 static uint32_t
 666 find_gfx_queue(const VkPhysicalDevice pdev)
 667 {
 668    uint32_t num_queues;
 669    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, NULL);
 670    assert(num_queues > 0);
 671
 672    VkQueueFamilyProperties *props = malloc(sizeof(*props) * num_queues);
 673    vkGetPhysicalDeviceQueueFamilyProperties(pdev, &num_queues, props);
 674
 675    for (uint32_t i = 0; i < num_queues; i++) {
 676       if (props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 677          free(props);
 678          return i;
 679       }
 680    }
 681
 682    return UINT32_MAX;
 683 }
 684
 685 static void
 686 zink_flush_frontbuffer(struct pipe_screen *pscreen,
 687                        struct pipe_resource *pres,
 688                        unsigned level, unsigned layer,
 689                        void *winsys_drawable_handle,
 690                        struct pipe_box *sub_box)
 691 {
 692    struct zink_screen *screen = zink_screen(pscreen);
 693    struct sw_winsys *winsys = screen->winsys;
 694    struct zink_resource *res = zink_resource(pres);
 695
 696    if (!winsys)
 697      return;
 698    void *map = winsys->displaytarget_map(winsys, res->dt, 0);
 699
 700    if (map) {
 701       VkImageSubresource isr = {};
 702       isr.aspectMask = res->aspect;
 703       isr.mipLevel = level;
 704       isr.arrayLayer = layer;
 705       VkSubresourceLayout layout;
 706       vkGetImageSubresourceLayout(screen->dev, res->image, &isr, &layout);
 707
 708       void *ptr;
 709       VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
 710       if (result != VK_SUCCESS) {
 711          debug_printf("failed to map memory for display\n");
 712          return;
 713       }
 714       for (int i = 0; i < pres->height0; ++i) {
 715          uint8_t *src = (uint8_t *)ptr + i * layout.rowPitch;
 716          uint8_t *dst = (uint8_t *)map + i * res->dt_stride;
 717          memcpy(dst, src, res->dt_stride);
 718       }
 719       vkUnmapMemory(screen->dev, res->mem);
 720    }
 721
 722    winsys->displaytarget_unmap(winsys, res->dt);
 723
 724    assert(res->dt);
 725    if (res->dt)
 726       winsys->displaytarget_display(winsys, res->dt, winsys_drawable_handle, sub_box);
 727 }
 728
 729 static bool
 730 load_device_extensions(struct zink_screen *screen)
 731 {
 732 #define GET_PROC_ADDR(x) do {                                               \
 733       screen->vk_##x = (PFN_vk##x)vkGetDeviceProcAddr(screen->dev, "vk"#x); \
 734       if (!screen->vk_##x)                                                  \
 735          return false;                                                      \
 736    } while (0)
 737    if (screen->have_EXT_transform_feedback) {
 738       GET_PROC_ADDR(CmdBindTransformFeedbackBuffersEXT);
 739       GET_PROC_ADDR(CmdBeginTransformFeedbackEXT);
 740       GET_PROC_ADDR(CmdEndTransformFeedbackEXT);
 741       GET_PROC_ADDR(CmdBeginQueryIndexedEXT);
 742       GET_PROC_ADDR(CmdEndQueryIndexedEXT);
 743       GET_PROC_ADDR(CmdDrawIndirectByteCountEXT);
 744    }
 745    if (screen->have_KHR_external_memory_fd)
 746       GET_PROC_ADDR(GetMemoryFdKHR);
 747
 748    if (screen->have_EXT_conditional_rendering) {
 749       GET_PROC_ADDR(CmdBeginConditionalRenderingEXT);
 750       GET_PROC_ADDR(CmdEndConditionalRenderingEXT);
 751    }
 752
 753 #undef GET_PROC_ADDR
 754
 755    return true;
 756 }
 757
 758 static struct pipe_screen *
 759 zink_internal_create_screen(struct sw_winsys *winsys, int fd)
 760 {
 761    struct zink_screen *screen = CALLOC_STRUCT(zink_screen);
 762    bool have_tf_ext = false, have_cond_render_ext = false, have_EXT_index_type_uint8 = false,
 763       have_EXT_robustness2_features = false, have_EXT_vertex_attribute_divisor = false;
 764    if (!screen)
 765       return NULL;
 766
 767    zink_debug = debug_get_option_zink_debug();
 768
 769    screen->instance = create_instance();
 770    screen->pdev = choose_pdev(screen->instance);
 771    screen->gfx_queue = find_gfx_queue(screen->pdev);
 772
 773    vkGetPhysicalDeviceMemoryProperties(screen->pdev, &screen->mem_props);
 774
 775    screen->have_X8_D24_UNORM_PACK32 = zink_is_depth_format_supported(screen,
 776                                               VK_FORMAT_X8_D24_UNORM_PACK32);
 777    screen->have_D24_UNORM_S8_UINT = zink_is_depth_format_supported(screen,
 778                                               VK_FORMAT_D24_UNORM_S8_UINT);
 779
 780    uint32_t num_extensions = 0;
 781    if (vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 782        &num_extensions, NULL) == VK_SUCCESS && num_extensions > 0) {
 783       VkExtensionProperties *extensions = MALLOC(sizeof(VkExtensionProperties) *
 784                                                 num_extensions);
 785       if (extensions) {
 786          vkEnumerateDeviceExtensionProperties(screen->pdev, NULL,
 787                                               &num_extensions, extensions);
 788
 789          for (uint32_t  i = 0; i < num_extensions; ++i) {
 790             if (!strcmp(extensions[i].extensionName,
 791                         VK_KHR_MAINTENANCE1_EXTENSION_NAME))
 792                screen->have_KHR_maintenance1 = true;
 793             if (!strcmp(extensions[i].extensionName,
 794                         VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME))
 795                screen->have_KHR_external_memory_fd = true;
 796             if (!strcmp(extensions[i].extensionName,
 797                         VK_EXT_CONDITIONAL_RENDERING_EXTENSION_NAME))
 798                have_cond_render_ext = true;
 799             if (!strcmp(extensions[i].extensionName,
 800                         VK_EXT_TRANSFORM_FEEDBACK_EXTENSION_NAME))
 801                have_tf_ext = true;
 802             if (!strcmp(extensions[i].extensionName,
 803                         VK_EXT_INDEX_TYPE_UINT8_EXTENSION_NAME))
 804                have_EXT_index_type_uint8 = true;
 805             if (!strcmp(extensions[i].extensionName,
 806                         VK_EXT_ROBUSTNESS_2_EXTENSION_NAME))
 807                have_EXT_robustness2_features = true;
 808             if (!strcmp(extensions[i].extensionName,
 809                         VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME))
 810                have_EXT_vertex_attribute_divisor = true;
 811
 812          }
 813          FREE(extensions);
 814       }
 815    }
 816    VkPhysicalDeviceFeatures2 feats = {};
 817    VkPhysicalDeviceTransformFeedbackFeaturesEXT tf_feats = {};
 818    VkPhysicalDeviceConditionalRenderingFeaturesEXT cond_render_feats = {};
 819    VkPhysicalDeviceIndexTypeUint8FeaturesEXT index_uint8_feats = {};
 820
 821    feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;
 822    if (have_tf_ext) {
 823       tf_feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TRANSFORM_FEEDBACK_FEATURES_EXT;
 824       tf_feats.pNext = feats.pNext;
 825       feats.pNext = &tf_feats;
 826    }
 827    if (have_cond_render_ext) {
 828       cond_render_feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_CONDITIONAL_RENDERING_FEATURES_EXT;
 829       cond_render_feats.pNext = feats.pNext;
 830       feats.pNext = &cond_render_feats;
 831    }
 832    if (have_EXT_index_type_uint8) {
 833       index_uint8_feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_INDEX_TYPE_UINT8_FEATURES_EXT;
 834       index_uint8_feats.pNext = feats.pNext;
 835       feats.pNext = &index_uint8_feats;
 836    }
 837    if (have_EXT_robustness2_features) {
 838       screen->rb2_feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ROBUSTNESS_2_FEATURES_EXT;
 839       screen->rb2_feats.pNext = feats.pNext;
 840       feats.pNext = &screen->rb2_feats;
 841    }
 842    if (have_EXT_vertex_attribute_divisor) {
 843       screen->vdiv_feats.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_FEATURES_EXT;
 844       screen->vdiv_feats.pNext = feats.pNext;
 845       feats.pNext = &screen->vdiv_feats;
 846    }
 847    vkGetPhysicalDeviceFeatures2(screen->pdev, &feats);
 848    memcpy(&screen->feats, &feats.features, sizeof(screen->feats));
 849    if (have_tf_ext && tf_feats.transformFeedback)
 850       screen->have_EXT_transform_feedback = true;
 851    if (have_cond_render_ext && cond_render_feats.conditionalRendering)
 852       screen->have_EXT_conditional_rendering = true;
 853    if (have_EXT_index_type_uint8 && index_uint8_feats.indexTypeUint8)
 854       screen->have_EXT_index_type_uint8 = true;
 855    screen->have_EXT_robustness2_features = have_EXT_robustness2_features;
 856    if (have_EXT_vertex_attribute_divisor && screen->vdiv_feats.vertexAttributeInstanceRateDivisor)
 857       screen->have_EXT_vertex_attribute_divisor = true;
 858
 859    VkPhysicalDeviceProperties2 props = {};
 860    VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT vdiv_props = {};
 861    props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
 862    if (screen->have_EXT_transform_feedback) {
 863       screen->tf_props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TRANSFORM_FEEDBACK_PROPERTIES_EXT;
 864       screen->tf_props.pNext = props.pNext;
 865       props.pNext = &screen->tf_props;
 866    }
 867    if (have_EXT_robustness2_features) {
 868       screen->rb2_props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ROBUSTNESS_2_PROPERTIES_EXT;
 869       screen->rb2_props.pNext = props.pNext;
 870       props.pNext = &screen->rb2_props;
 871    }
 872    if (have_EXT_vertex_attribute_divisor) {
 873       vdiv_props.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VERTEX_ATTRIBUTE_DIVISOR_PROPERTIES_EXT;
 874       vdiv_props.pNext = props.pNext;
 875       props.pNext = &vdiv_props;
 876    }
 877    vkGetPhysicalDeviceProperties2(screen->pdev, &props);
 878    memcpy(&screen->props, &props.properties, sizeof(screen->props));
 879    screen->max_vertex_attrib_divisor = vdiv_props.maxVertexAttribDivisor;
 880
 881    if (!screen->have_KHR_maintenance1) {
 882       debug_printf("ZINK: VK_KHR_maintenance1 required!\n");
 883       goto fail;
 884    }
 885
 886    VkDeviceQueueCreateInfo qci = {};
 887    float dummy = 0.0f;
 888    qci.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 889    qci.queueFamilyIndex = screen->gfx_queue;
 890    qci.queueCount = 1;
 891    qci.pQueuePriorities = &dummy;
 892
 893    VkDeviceCreateInfo dci = {};
 894    dci.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 895    dci.queueCreateInfoCount = 1;
 896    dci.pQueueCreateInfos = &qci;
 897    /* extensions don't have bool members in pEnabledFeatures.
 898     * this requires us to pass the whole VkPhysicalDeviceFeatures2 struct
 899     */
 900    dci.pNext = &feats;
 901    const char *extensions[8] = {
 902       VK_KHR_MAINTENANCE1_EXTENSION_NAME,
 903    };
 904    num_extensions = 1;
 905
 906    if (fd >= 0 && !screen->have_KHR_external_memory_fd) {
 907       debug_printf("ZINK: KHR_external_memory_fd required!\n");
 908       goto fail;
 909    }
 910
 911    if (screen->have_KHR_external_memory_fd) {
 912       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME;
 913       extensions[num_extensions++] = VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME;
 914    }
 915
 916    if (screen->have_EXT_conditional_rendering)
 917       extensions[num_extensions++] = VK_EXT_CONDITIONAL_RENDERING_EXTENSION_NAME;
 918
 919    if (screen->have_EXT_index_type_uint8)
 920       extensions[num_extensions++] = VK_EXT_INDEX_TYPE_UINT8_EXTENSION_NAME;
 921
 922    if (screen->have_EXT_transform_feedback)
 923       extensions[num_extensions++] = VK_EXT_TRANSFORM_FEEDBACK_EXTENSION_NAME;
 924    if (screen->have_EXT_robustness2_features)
 925       extensions[num_extensions++] = VK_EXT_ROBUSTNESS_2_EXTENSION_NAME;
 926    if (screen->have_EXT_vertex_attribute_divisor)
 927       extensions[num_extensions++] = VK_EXT_VERTEX_ATTRIBUTE_DIVISOR_EXTENSION_NAME;
 928    assert(num_extensions <= ARRAY_SIZE(extensions));
 929
 930    dci.ppEnabledExtensionNames = extensions;
 931    dci.enabledExtensionCount = num_extensions;
 932    if (vkCreateDevice(screen->pdev, &dci, NULL, &screen->dev) != VK_SUCCESS)
 933       goto fail;
 934
 935    if (!load_device_extensions(screen))
 936       goto fail;
 937
 938    screen->winsys = winsys;
 939
 940    screen->base.get_name = zink_get_name;
 941    screen->base.get_vendor = zink_get_vendor;
 942    screen->base.get_device_vendor = zink_get_device_vendor;
 943    screen->base.get_param = zink_get_param;
 944    screen->base.get_paramf = zink_get_paramf;
 945    screen->base.get_shader_param = zink_get_shader_param;
 946    screen->base.get_compiler_options = zink_get_compiler_options;
 947    screen->base.is_format_supported = zink_is_format_supported;
 948    screen->base.context_create = zink_context_create;
 949    screen->base.flush_frontbuffer = zink_flush_frontbuffer;
 950    screen->base.destroy = zink_destroy_screen;
 951
 952    zink_screen_resource_init(&screen->base);
 953    zink_screen_fence_init(&screen->base);
 954
 955    slab_create_parent(&screen->transfer_pool, sizeof(struct zink_transfer), 16);
 956
 957    return &screen->base;
 958
 959 fail:
 960    FREE(screen);
 961    return NULL;
 962 }
 963
 964 struct pipe_screen *
 965 zink_create_screen(struct sw_winsys *winsys)
 966 {
 967    return zink_internal_create_screen(winsys, -1);
 968 }
 969
 970 struct pipe_screen *
 971 zink_drm_create_screen(int fd)
 972 {
 973    return zink_internal_create_screen(NULL, fd);
 974 }