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                 return 0;
 221
 222                 /* Stream output. */
 223         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 224         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 225         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 226         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 227                 return 0;
 228
 229                 /* Geometry shader output, unsupported. */
 230         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 231         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 232                 return 0;
 233
 234                 /* Texturing. */
 235         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 236         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 237                 return VC4_MAX_MIP_LEVELS;
 238         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 239                 /* Note: Not supported in hardware, just faking it. */
 240                 return 5;
 241         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 242                 return 0;
 243
 244                 /* Render targets. */
 245         case PIPE_CAP_MAX_RENDER_TARGETS:
 246                 return 1;
 247
 248                 /* Queries. */
 249         case PIPE_CAP_QUERY_TIME_ELAPSED:
 250         case PIPE_CAP_QUERY_TIMESTAMP:
 251                 return 0;
 252
 253         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 254         case PIPE_CAP_MIN_TEXEL_OFFSET:
 255                 return 0;
 256
 257         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 258                 return 2048;
 259
 260         case PIPE_CAP_ENDIANNESS:
 261                 return PIPE_ENDIAN_LITTLE;
 262
 263         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 264                 return 64;
 265
 266         case PIPE_CAP_VENDOR_ID:
 267                 return 0x14E4;
 268         case PIPE_CAP_DEVICE_ID:
 269                 return 0xFFFFFFFF;
 270         case PIPE_CAP_ACCELERATED:
 271                 return 1;
 272         case PIPE_CAP_VIDEO_MEMORY: {
 273                 uint64_t system_memory;
 274
 275                 if (!os_get_total_physical_memory(&system_memory))
 276                         return 0;
 277
 278                 return (int)(system_memory >> 20);
 279         }
 280         case PIPE_CAP_UMA:
 281                 return 1;
 282
 283         default:
 284                 fprintf(stderr, "unknown param %d\n", param);
 285                 return 0;
 286         }
 287 }
 288
 289 static float
 290 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 291 {
 292         switch (param) {
 293         case PIPE_CAPF_MAX_LINE_WIDTH:
 294         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 295                 return 32;
 296
 297         case PIPE_CAPF_MAX_POINT_WIDTH:
 298         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 299                 return 512.0f;
 300
 301         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 302                 return 0.0f;
 303         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 304                 return 0.0f;
 305         case PIPE_CAPF_GUARD_BAND_LEFT:
 306         case PIPE_CAPF_GUARD_BAND_TOP:
 307         case PIPE_CAPF_GUARD_BAND_RIGHT:
 308         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 309                 return 0.0f;
 310         default:
 311                 fprintf(stderr, "unknown paramf %d\n", param);
 312                 return 0;
 313         }
 314 }
 315
 316 static int
 317 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 318                            enum pipe_shader_cap param)
 319 {
 320         if (shader != PIPE_SHADER_VERTEX &&
 321             shader != PIPE_SHADER_FRAGMENT) {
 322                 return 0;
 323         }
 324
 325         /* this is probably not totally correct.. but it's a start: */
 326         switch (param) {
 327         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 328         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 329         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 330         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 331                 return 16384;
 332
 333         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 334                 return vc4_screen(pscreen)->has_control_flow;
 335
 336         case PIPE_SHADER_CAP_MAX_INPUTS:
 337                 if (shader == PIPE_SHADER_FRAGMENT)
 338                         return 8;
 339                 else
 340                         return 16;
 341         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 342                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 343         case PIPE_SHADER_CAP_MAX_TEMPS:
 344                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 345         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 346                 return 16 * 1024 * sizeof(float);
 347         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 348                 return 1;
 349         case PIPE_SHADER_CAP_MAX_PREDS:
 350                 return 0; /* nothing uses this */
 351         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 352                 return 0;
 353         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 354         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 355         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 356                 return 0;
 357         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 358                 return 1;
 359         case PIPE_SHADER_CAP_SUBROUTINES:
 360                 return 0;
 361         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 362                 return 0;
 363         case PIPE_SHADER_CAP_INTEGERS:
 364                 return 1;
 365         case PIPE_SHADER_CAP_DOUBLES:
 366         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 367         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 368         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 369         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 370                 return 0;
 371         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 372         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 373                 return VC4_MAX_TEXTURE_SAMPLERS;
 374         case PIPE_SHADER_CAP_PREFERRED_IR:
 375                 return PIPE_SHADER_IR_TGSI;
 376         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 377                 return 0;
 378         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 379                 return 32;
 380         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 381         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 382                 return 0;
 383         default:
 384                 fprintf(stderr, "unknown shader param %d\n", param);
 385                 return 0;
 386         }
 387         return 0;
 388 }
 389
 390 static boolean
 391 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 392                                enum pipe_format format,
 393                                enum pipe_texture_target target,
 394                                unsigned sample_count,
 395                                unsigned usage)
 396 {
 397         unsigned retval = 0;
 398
 399         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 400                 return FALSE;
 401
 402         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 403             !util_format_is_supported(format, usage)) {
 404                 return FALSE;
 405         }
 406
 407         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 408                 switch (format) {
 409                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 410                 case PIPE_FORMAT_R32G32B32_FLOAT:
 411                 case PIPE_FORMAT_R32G32_FLOAT:
 412                 case PIPE_FORMAT_R32_FLOAT:
 413                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 414                 case PIPE_FORMAT_R32G32B32_SNORM:
 415                 case PIPE_FORMAT_R32G32_SNORM:
 416                 case PIPE_FORMAT_R32_SNORM:
 417                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 418                 case PIPE_FORMAT_R32G32B32_SSCALED:
 419                 case PIPE_FORMAT_R32G32_SSCALED:
 420                 case PIPE_FORMAT_R32_SSCALED:
 421                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 422                 case PIPE_FORMAT_R16G16B16_UNORM:
 423                 case PIPE_FORMAT_R16G16_UNORM:
 424                 case PIPE_FORMAT_R16_UNORM:
 425                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 426                 case PIPE_FORMAT_R16G16B16_SNORM:
 427                 case PIPE_FORMAT_R16G16_SNORM:
 428                 case PIPE_FORMAT_R16_SNORM:
 429                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 430                 case PIPE_FORMAT_R16G16B16_USCALED:
 431                 case PIPE_FORMAT_R16G16_USCALED:
 432                 case PIPE_FORMAT_R16_USCALED:
 433                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 434                 case PIPE_FORMAT_R16G16B16_SSCALED:
 435                 case PIPE_FORMAT_R16G16_SSCALED:
 436                 case PIPE_FORMAT_R16_SSCALED:
 437                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 438                 case PIPE_FORMAT_R8G8B8_UNORM:
 439                 case PIPE_FORMAT_R8G8_UNORM:
 440                 case PIPE_FORMAT_R8_UNORM:
 441                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 442                 case PIPE_FORMAT_R8G8B8_SNORM:
 443                 case PIPE_FORMAT_R8G8_SNORM:
 444                 case PIPE_FORMAT_R8_SNORM:
 445                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 446                 case PIPE_FORMAT_R8G8B8_USCALED:
 447                 case PIPE_FORMAT_R8G8_USCALED:
 448                 case PIPE_FORMAT_R8_USCALED:
 449                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 450                 case PIPE_FORMAT_R8G8B8_SSCALED:
 451                 case PIPE_FORMAT_R8G8_SSCALED:
 452                 case PIPE_FORMAT_R8_SSCALED:
 453                         retval |= PIPE_BIND_VERTEX_BUFFER;
 454                         break;
 455                 default:
 456                         break;
 457                 }
 458         }
 459
 460         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 461             vc4_rt_format_supported(format)) {
 462                 retval |= PIPE_BIND_RENDER_TARGET;
 463         }
 464
 465         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 466             vc4_tex_format_supported(format)) {
 467                 retval |= PIPE_BIND_SAMPLER_VIEW;
 468         }
 469
 470         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 471             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 472              format == PIPE_FORMAT_X8Z24_UNORM)) {
 473                 retval |= PIPE_BIND_DEPTH_STENCIL;
 474         }
 475
 476         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 477             (format == PIPE_FORMAT_I8_UINT ||
 478              format == PIPE_FORMAT_I16_UINT)) {
 479                 retval |= PIPE_BIND_INDEX_BUFFER;
 480         }
 481
 482         if (usage & PIPE_BIND_TRANSFER_READ)
 483                 retval |= PIPE_BIND_TRANSFER_READ;
 484         if (usage & PIPE_BIND_TRANSFER_WRITE)
 485                 retval |= PIPE_BIND_TRANSFER_WRITE;
 486
 487 #if 0
 488         if (retval != usage) {
 489                 fprintf(stderr,
 490                         "not supported: format=%s, target=%d, sample_count=%d, "
 491                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 492                         target, sample_count, usage, retval);
 493         }
 494 #endif
 495
 496         return retval == usage;
 497 }
 498
 499 static bool
 500 vc4_supports_branches(struct vc4_screen *screen)
 501 {
 502 #if USE_VC4_SIMULATOR
 503         return true;
 504 #else
 505         return false;
 506 #endif
 507 }
 508
 509 struct pipe_screen *
 510 vc4_screen_create(int fd)
 511 {
 512         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 513         struct pipe_screen *pscreen;
 514
 515         pscreen = &screen->base;
 516
 517         pscreen->destroy = vc4_screen_destroy;
 518         pscreen->get_param = vc4_screen_get_param;
 519         pscreen->get_paramf = vc4_screen_get_paramf;
 520         pscreen->get_shader_param = vc4_screen_get_shader_param;
 521         pscreen->context_create = vc4_context_create;
 522         pscreen->is_format_supported = vc4_screen_is_format_supported;
 523
 524         screen->fd = fd;
 525         list_inithead(&screen->bo_cache.time_list);
 526
 527         if (vc4_supports_branches(screen))
 528                 screen->has_control_flow = true;
 529
 530         vc4_fence_init(screen);
 531
 532         vc4_debug = debug_get_option_vc4_debug();
 533         if (vc4_debug & VC4_DEBUG_SHADERDB)
 534                 vc4_debug |= VC4_DEBUG_NORAST;
 535
 536 #if USE_VC4_SIMULATOR
 537         vc4_simulator_init(screen);
 538 #endif
 539
 540         vc4_resource_screen_init(pscreen);
 541
 542         pscreen->get_name = vc4_screen_get_name;
 543         pscreen->get_vendor = vc4_screen_get_vendor;
 544         pscreen->get_device_vendor = vc4_screen_get_vendor;
 545
 546         return pscreen;
 547 }
 548
 549 boolean
 550 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 551                          struct vc4_bo *bo,
 552                          unsigned stride,
 553                          struct winsys_handle *whandle)
 554 {
 555         whandle->stride = stride;
 556
 557         /* If we're passing some reference to our BO out to some other part of
 558          * the system, then we can't do any optimizations about only us being
 559          * the ones seeing it (like BO caching or shadow update avoidance).
 560          */
 561         bo->private = false;
 562
 563         switch (whandle->type) {
 564         case DRM_API_HANDLE_TYPE_SHARED:
 565                 return vc4_bo_flink(bo, &whandle->handle);
 566         case DRM_API_HANDLE_TYPE_KMS:
 567                 whandle->handle = bo->handle;
 568                 return TRUE;
 569         case DRM_API_HANDLE_TYPE_FD:
 570                 whandle->handle = vc4_bo_get_dmabuf(bo);
 571                 return whandle->handle != -1;
 572         }
 573
 574         return FALSE;
 575 }
 576
 577 struct vc4_bo *
 578 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 579                           struct winsys_handle *whandle)
 580 {
 581         struct vc4_screen *screen = vc4_screen(pscreen);
 582
 583         if (whandle->offset != 0) {
 584                 fprintf(stderr,
 585                         "Attempt to import unsupported winsys offset %u\n",
 586                         whandle->offset);
 587                 return NULL;
 588         }
 589
 590         switch (whandle->type) {
 591         case DRM_API_HANDLE_TYPE_SHARED:
 592                 return vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 593         case DRM_API_HANDLE_TYPE_FD:
 594                 return vc4_bo_open_dmabuf(screen, whandle->handle, whandle->stride);
 595         default:
 596                 fprintf(stderr,
 597                         "Attempt to import unsupported handle type %d\n",
 598                         whandle->type);
 599                 return NULL;
 600         }
 601 }