src/gallium/drivers/vc4/vc4_screen.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include "os/os_misc.h"
  26 #include "pipe/p_defines.h"
  27 #include "pipe/p_screen.h"
  28 #include "pipe/p_state.h"
  29
  30 #include "util/u_debug.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_format.h"
  33 #include "util/ralloc.h"
  34
  35 #include "vc4_screen.h"
  36 #include "vc4_context.h"
  37 #include "vc4_resource.h"
  38
  39 static const struct debug_named_value debug_options[] = {
  40         { "cl",       VC4_DEBUG_CL,
  41           "Dump command list during creation" },
  42         { "qpu",      VC4_DEBUG_QPU,
  43           "Dump generated QPU instructions" },
  44         { "qir",      VC4_DEBUG_QIR,
  45           "Dump QPU IR during program compile" },
  46         { "nir",      VC4_DEBUG_NIR,
  47           "Dump NIR during program compile" },
  48         { "tgsi",     VC4_DEBUG_TGSI,
  49           "Dump TGSI during program compile" },
  50         { "shaderdb", VC4_DEBUG_SHADERDB,
  51           "Dump program compile information for shader-db analysis" },
  52         { "perf",     VC4_DEBUG_PERF,
  53           "Print during performance-related events" },
  54         { "norast",   VC4_DEBUG_NORAST,
  55           "Skip actual hardware execution of commands" },
  56         { "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
  57           "Flush after each draw call" },
  58         { "always_sync", VC4_DEBUG_ALWAYS_SYNC,
  59           "Wait for finish after each flush" },
  60 #if USE_VC4_SIMULATOR
  61         { "dump", VC4_DEBUG_DUMP,
  62           "Write a GPU command stream trace file" },
  63 #endif
  64         { NULL }
  65 };
  66
  67 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  68 uint32_t vc4_debug;
  69
  70 static const char *
  71 vc4_screen_get_name(struct pipe_screen *pscreen)
  72 {
  73         return "VC4";
  74 }
  75
  76 static const char *
  77 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  78 {
  79         return "Broadcom";
  80 }
  81
  82 static void
  83 vc4_screen_destroy(struct pipe_screen *pscreen)
  84 {
  85         struct vc4_screen *screen = vc4_screen(pscreen);
  86
  87         vc4_bufmgr_destroy(pscreen);
  88         close(screen->fd);
  89         ralloc_free(pscreen);
  90 }
  91
  92 static int
  93 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  94 {
  95         switch (param) {
  96                 /* Supported features (boolean caps). */
  97         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
  98         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  99         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 100         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 101         case PIPE_CAP_NPOT_TEXTURES:
 102         case PIPE_CAP_SHAREABLE_SHADERS:
 103         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 104         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 105         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 106         case PIPE_CAP_TWO_SIDED_STENCIL:
 107         case PIPE_CAP_USER_INDEX_BUFFERS:
 108         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 109         case PIPE_CAP_TEXTURE_SWIZZLE:
 110                 return 1;
 111
 112                 /* lying for GL 2.0 */
 113         case PIPE_CAP_OCCLUSION_QUERY:
 114         case PIPE_CAP_POINT_SPRITE:
 115                 return 1;
 116
 117         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 118                 return 256;
 119
 120         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 121                 return 120;
 122
 123         case PIPE_CAP_MAX_VIEWPORTS:
 124                 return 1;
 125
 126         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 127         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 128                 return 1;
 129
 130         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 131                 return 1;
 132
 133                 /* Unsupported features. */
 134         case PIPE_CAP_ANISOTROPIC_FILTER:
 135         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 136         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 137         case PIPE_CAP_CUBE_MAP_ARRAY:
 138         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 139         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 140         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 141         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 142         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 143         case PIPE_CAP_TGSI_INSTANCEID:
 144         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 145         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 146         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 147         case PIPE_CAP_COMPUTE:
 148         case PIPE_CAP_START_INSTANCE:
 149         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 150         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 151         case PIPE_CAP_TGSI_TEXCOORD:
 152         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 153         case PIPE_CAP_CONDITIONAL_RENDER:
 154         case PIPE_CAP_PRIMITIVE_RESTART:
 155         case PIPE_CAP_TEXTURE_BARRIER:
 156         case PIPE_CAP_SM3:
 157         case PIPE_CAP_INDEP_BLEND_ENABLE:
 158         case PIPE_CAP_INDEP_BLEND_FUNC:
 159         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 160         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 161         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 162         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 163         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 164         case PIPE_CAP_USER_VERTEX_BUFFERS:
 165         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 166         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 167         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 168         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 169         case PIPE_CAP_TEXTURE_GATHER_SM5:
 170         case PIPE_CAP_FAKE_SW_MSAA:
 171         case PIPE_CAP_TEXTURE_QUERY_LOD:
 172         case PIPE_CAP_SAMPLE_SHADING:
 173         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 174         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 175         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 176         case PIPE_CAP_MAX_TEXEL_OFFSET:
 177         case PIPE_CAP_MAX_VERTEX_STREAMS:
 178         case PIPE_CAP_DRAW_INDIRECT:
 179         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 180         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 181         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 182         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 183         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 184         case PIPE_CAP_CLIP_HALFZ:
 185         case PIPE_CAP_VERTEXID_NOBASE:
 186         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 187         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 188         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 189         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 190         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 191         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 192         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 193         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 194         case PIPE_CAP_TGSI_TXQS:
 195         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 196         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 197         case PIPE_CAP_CLEAR_TEXTURE:
 198         case PIPE_CAP_DRAW_PARAMETERS:
 199         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 200         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 201         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 202         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 203         case PIPE_CAP_INVALIDATE_BUFFER:
 204         case PIPE_CAP_GENERATE_MIPMAP:
 205         case PIPE_CAP_STRING_MARKER:
 206         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 207         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 208         case PIPE_CAP_QUERY_MEMORY_INFO:
 209         case PIPE_CAP_PCI_GROUP:
 210         case PIPE_CAP_PCI_BUS:
 211         case PIPE_CAP_PCI_DEVICE:
 212         case PIPE_CAP_PCI_FUNCTION:
 213         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 214         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 215         case PIPE_CAP_CULL_DISTANCE:
 216         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 217         case PIPE_CAP_TGSI_VOTE:
 218         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 219         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 220         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 221                 return 0;
 222
 223                 /* Stream output. */
 224         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 225         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 226         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 227         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 228                 return 0;
 229
 230                 /* Geometry shader output, unsupported. */
 231         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 232         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 233                 return 0;
 234
 235                 /* Texturing. */
 236         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 237         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 238                 return VC4_MAX_MIP_LEVELS;
 239         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 240                 /* Note: Not supported in hardware, just faking it. */
 241                 return 5;
 242         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 243                 return 0;
 244
 245                 /* Render targets. */
 246         case PIPE_CAP_MAX_RENDER_TARGETS:
 247                 return 1;
 248
 249                 /* Queries. */
 250         case PIPE_CAP_QUERY_TIME_ELAPSED:
 251         case PIPE_CAP_QUERY_TIMESTAMP:
 252                 return 0;
 253
 254         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 255         case PIPE_CAP_MIN_TEXEL_OFFSET:
 256                 return 0;
 257
 258         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 259                 return 2048;
 260
 261         case PIPE_CAP_ENDIANNESS:
 262                 return PIPE_ENDIAN_LITTLE;
 263
 264         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 265                 return 64;
 266
 267         case PIPE_CAP_VENDOR_ID:
 268                 return 0x14E4;
 269         case PIPE_CAP_DEVICE_ID:
 270                 return 0xFFFFFFFF;
 271         case PIPE_CAP_ACCELERATED:
 272                 return 1;
 273         case PIPE_CAP_VIDEO_MEMORY: {
 274                 uint64_t system_memory;
 275
 276                 if (!os_get_total_physical_memory(&system_memory))
 277                         return 0;
 278
 279                 return (int)(system_memory >> 20);
 280         }
 281         case PIPE_CAP_UMA:
 282                 return 1;
 283
 284         default:
 285                 fprintf(stderr, "unknown param %d\n", param);
 286                 return 0;
 287         }
 288 }
 289
 290 static float
 291 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 292 {
 293         switch (param) {
 294         case PIPE_CAPF_MAX_LINE_WIDTH:
 295         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 296                 return 32;
 297
 298         case PIPE_CAPF_MAX_POINT_WIDTH:
 299         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 300                 return 512.0f;
 301
 302         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 303                 return 0.0f;
 304         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 305                 return 0.0f;
 306         case PIPE_CAPF_GUARD_BAND_LEFT:
 307         case PIPE_CAPF_GUARD_BAND_TOP:
 308         case PIPE_CAPF_GUARD_BAND_RIGHT:
 309         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 310                 return 0.0f;
 311         default:
 312                 fprintf(stderr, "unknown paramf %d\n", param);
 313                 return 0;
 314         }
 315 }
 316
 317 static int
 318 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 319                            enum pipe_shader_cap param)
 320 {
 321         if (shader != PIPE_SHADER_VERTEX &&
 322             shader != PIPE_SHADER_FRAGMENT) {
 323                 return 0;
 324         }
 325
 326         /* this is probably not totally correct.. but it's a start: */
 327         switch (param) {
 328         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 329         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 330         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 331         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 332                 return 16384;
 333
 334         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 335                 return vc4_screen(pscreen)->has_control_flow;
 336
 337         case PIPE_SHADER_CAP_MAX_INPUTS:
 338                 if (shader == PIPE_SHADER_FRAGMENT)
 339                         return 8;
 340                 else
 341                         return 16;
 342         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 343                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 344         case PIPE_SHADER_CAP_MAX_TEMPS:
 345                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 346         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 347                 return 16 * 1024 * sizeof(float);
 348         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 349                 return 1;
 350         case PIPE_SHADER_CAP_MAX_PREDS:
 351                 return 0; /* nothing uses this */
 352         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 353                 return 0;
 354         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 355         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 356         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 357                 return 0;
 358         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 359                 return 1;
 360         case PIPE_SHADER_CAP_SUBROUTINES:
 361                 return 0;
 362         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 363                 return 0;
 364         case PIPE_SHADER_CAP_INTEGERS:
 365                 return 1;
 366         case PIPE_SHADER_CAP_DOUBLES:
 367         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 368         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 369         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 370         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 371                 return 0;
 372         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 373         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 374                 return VC4_MAX_TEXTURE_SAMPLERS;
 375         case PIPE_SHADER_CAP_PREFERRED_IR:
 376                 return PIPE_SHADER_IR_TGSI;
 377         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 378                 return 0;
 379         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 380                 return 32;
 381         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 382         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 383                 return 0;
 384         default:
 385                 fprintf(stderr, "unknown shader param %d\n", param);
 386                 return 0;
 387         }
 388         return 0;
 389 }
 390
 391 static boolean
 392 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 393                                enum pipe_format format,
 394                                enum pipe_texture_target target,
 395                                unsigned sample_count,
 396                                unsigned usage)
 397 {
 398         unsigned retval = 0;
 399
 400         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 401                 return FALSE;
 402
 403         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 404             !util_format_is_supported(format, usage)) {
 405                 return FALSE;
 406         }
 407
 408         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 409                 switch (format) {
 410                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 411                 case PIPE_FORMAT_R32G32B32_FLOAT:
 412                 case PIPE_FORMAT_R32G32_FLOAT:
 413                 case PIPE_FORMAT_R32_FLOAT:
 414                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 415                 case PIPE_FORMAT_R32G32B32_SNORM:
 416                 case PIPE_FORMAT_R32G32_SNORM:
 417                 case PIPE_FORMAT_R32_SNORM:
 418                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 419                 case PIPE_FORMAT_R32G32B32_SSCALED:
 420                 case PIPE_FORMAT_R32G32_SSCALED:
 421                 case PIPE_FORMAT_R32_SSCALED:
 422                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 423                 case PIPE_FORMAT_R16G16B16_UNORM:
 424                 case PIPE_FORMAT_R16G16_UNORM:
 425                 case PIPE_FORMAT_R16_UNORM:
 426                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 427                 case PIPE_FORMAT_R16G16B16_SNORM:
 428                 case PIPE_FORMAT_R16G16_SNORM:
 429                 case PIPE_FORMAT_R16_SNORM:
 430                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 431                 case PIPE_FORMAT_R16G16B16_USCALED:
 432                 case PIPE_FORMAT_R16G16_USCALED:
 433                 case PIPE_FORMAT_R16_USCALED:
 434                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 435                 case PIPE_FORMAT_R16G16B16_SSCALED:
 436                 case PIPE_FORMAT_R16G16_SSCALED:
 437                 case PIPE_FORMAT_R16_SSCALED:
 438                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 439                 case PIPE_FORMAT_R8G8B8_UNORM:
 440                 case PIPE_FORMAT_R8G8_UNORM:
 441                 case PIPE_FORMAT_R8_UNORM:
 442                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 443                 case PIPE_FORMAT_R8G8B8_SNORM:
 444                 case PIPE_FORMAT_R8G8_SNORM:
 445                 case PIPE_FORMAT_R8_SNORM:
 446                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 447                 case PIPE_FORMAT_R8G8B8_USCALED:
 448                 case PIPE_FORMAT_R8G8_USCALED:
 449                 case PIPE_FORMAT_R8_USCALED:
 450                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 451                 case PIPE_FORMAT_R8G8B8_SSCALED:
 452                 case PIPE_FORMAT_R8G8_SSCALED:
 453                 case PIPE_FORMAT_R8_SSCALED:
 454                         retval |= PIPE_BIND_VERTEX_BUFFER;
 455                         break;
 456                 default:
 457                         break;
 458                 }
 459         }
 460
 461         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 462             vc4_rt_format_supported(format)) {
 463                 retval |= PIPE_BIND_RENDER_TARGET;
 464         }
 465
 466         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 467             vc4_tex_format_supported(format)) {
 468                 retval |= PIPE_BIND_SAMPLER_VIEW;
 469         }
 470
 471         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 472             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 473              format == PIPE_FORMAT_X8Z24_UNORM)) {
 474                 retval |= PIPE_BIND_DEPTH_STENCIL;
 475         }
 476
 477         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 478             (format == PIPE_FORMAT_I8_UINT ||
 479              format == PIPE_FORMAT_I16_UINT)) {
 480                 retval |= PIPE_BIND_INDEX_BUFFER;
 481         }
 482
 483         if (usage & PIPE_BIND_TRANSFER_READ)
 484                 retval |= PIPE_BIND_TRANSFER_READ;
 485         if (usage & PIPE_BIND_TRANSFER_WRITE)
 486                 retval |= PIPE_BIND_TRANSFER_WRITE;
 487
 488 #if 0
 489         if (retval != usage) {
 490                 fprintf(stderr,
 491                         "not supported: format=%s, target=%d, sample_count=%d, "
 492                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 493                         target, sample_count, usage, retval);
 494         }
 495 #endif
 496
 497         return retval == usage;
 498 }
 499
 500 static bool
 501 vc4_supports_branches(struct vc4_screen *screen)
 502 {
 503 #if USE_VC4_SIMULATOR
 504         return true;
 505 #else
 506         return false;
 507 #endif
 508 }
 509
 510 struct pipe_screen *
 511 vc4_screen_create(int fd)
 512 {
 513         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 514         struct pipe_screen *pscreen;
 515
 516         pscreen = &screen->base;
 517
 518         pscreen->destroy = vc4_screen_destroy;
 519         pscreen->get_param = vc4_screen_get_param;
 520         pscreen->get_paramf = vc4_screen_get_paramf;
 521         pscreen->get_shader_param = vc4_screen_get_shader_param;
 522         pscreen->context_create = vc4_context_create;
 523         pscreen->is_format_supported = vc4_screen_is_format_supported;
 524
 525         screen->fd = fd;
 526         list_inithead(&screen->bo_cache.time_list);
 527
 528         if (vc4_supports_branches(screen))
 529                 screen->has_control_flow = true;
 530
 531         vc4_fence_init(screen);
 532
 533         vc4_debug = debug_get_option_vc4_debug();
 534         if (vc4_debug & VC4_DEBUG_SHADERDB)
 535                 vc4_debug |= VC4_DEBUG_NORAST;
 536
 537 #if USE_VC4_SIMULATOR
 538         vc4_simulator_init(screen);
 539 #endif
 540
 541         vc4_resource_screen_init(pscreen);
 542
 543         pscreen->get_name = vc4_screen_get_name;
 544         pscreen->get_vendor = vc4_screen_get_vendor;
 545         pscreen->get_device_vendor = vc4_screen_get_vendor;
 546
 547         return pscreen;
 548 }
 549
 550 boolean
 551 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 552                          struct vc4_bo *bo,
 553                          unsigned stride,
 554                          struct winsys_handle *whandle)
 555 {
 556         whandle->stride = stride;
 557
 558         /* If we're passing some reference to our BO out to some other part of
 559          * the system, then we can't do any optimizations about only us being
 560          * the ones seeing it (like BO caching or shadow update avoidance).
 561          */
 562         bo->private = false;
 563
 564         switch (whandle->type) {
 565         case DRM_API_HANDLE_TYPE_SHARED:
 566                 return vc4_bo_flink(bo, &whandle->handle);
 567         case DRM_API_HANDLE_TYPE_KMS:
 568                 whandle->handle = bo->handle;
 569                 return TRUE;
 570         case DRM_API_HANDLE_TYPE_FD:
 571                 whandle->handle = vc4_bo_get_dmabuf(bo);
 572                 return whandle->handle != -1;
 573         }
 574
 575         return FALSE;
 576 }
 577
 578 struct vc4_bo *
 579 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 580                           struct winsys_handle *whandle)
 581 {
 582         struct vc4_screen *screen = vc4_screen(pscreen);
 583
 584         if (whandle->offset != 0) {
 585                 fprintf(stderr,
 586                         "Attempt to import unsupported winsys offset %u\n",
 587                         whandle->offset);
 588                 return NULL;
 589         }
 590
 591         switch (whandle->type) {
 592         case DRM_API_HANDLE_TYPE_SHARED:
 593                 return vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 594         case DRM_API_HANDLE_TYPE_FD:
 595                 return vc4_bo_open_dmabuf(screen, whandle->handle, whandle->stride);
 596         default:
 597                 fprintf(stderr,
 598                         "Attempt to import unsupported handle type %d\n",
 599                         whandle->type);
 600                 return NULL;
 601         }
 602 }