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_cpu_detect.h"
  31 #include "util/u_debug.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_format.h"
  34 #include "util/u_hash_table.h"
  35 #include "util/ralloc.h"
  36
  37 #include <xf86drm.h>
  38 #include "drm_fourcc.h"
  39 #include "vc4_drm.h"
  40 #include "vc4_screen.h"
  41 #include "vc4_context.h"
  42 #include "vc4_resource.h"
  43
  44 static const struct debug_named_value debug_options[] = {
  45         { "cl",       VC4_DEBUG_CL,
  46           "Dump command list during creation" },
  47         { "surf",       VC4_DEBUG_SURFACE,
  48           "Dump surface layouts" },
  49         { "qpu",      VC4_DEBUG_QPU,
  50           "Dump generated QPU instructions" },
  51         { "qir",      VC4_DEBUG_QIR,
  52           "Dump QPU IR during program compile" },
  53         { "nir",      VC4_DEBUG_NIR,
  54           "Dump NIR during program compile" },
  55         { "tgsi",     VC4_DEBUG_TGSI,
  56           "Dump TGSI during program compile" },
  57         { "shaderdb", VC4_DEBUG_SHADERDB,
  58           "Dump program compile information for shader-db analysis" },
  59         { "perf",     VC4_DEBUG_PERF,
  60           "Print during performance-related events" },
  61         { "norast",   VC4_DEBUG_NORAST,
  62           "Skip actual hardware execution of commands" },
  63         { "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
  64           "Flush after each draw call" },
  65         { "always_sync", VC4_DEBUG_ALWAYS_SYNC,
  66           "Wait for finish after each flush" },
  67 #if USE_VC4_SIMULATOR
  68         { "dump", VC4_DEBUG_DUMP,
  69           "Write a GPU command stream trace file" },
  70 #endif
  71         { NULL }
  72 };
  73
  74 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  75 uint32_t vc4_debug;
  76
  77 static const char *
  78 vc4_screen_get_name(struct pipe_screen *pscreen)
  79 {
  80         struct vc4_screen *screen = vc4_screen(pscreen);
  81
  82         if (!screen->name) {
  83                 screen->name = ralloc_asprintf(screen,
  84                                                "VC4 V3D %d.%d",
  85                                                screen->v3d_ver / 10,
  86                                                screen->v3d_ver % 10);
  87         }
  88
  89         return screen->name;
  90 }
  91
  92 static const char *
  93 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  94 {
  95         return "Broadcom";
  96 }
  97
  98 static void
  99 vc4_screen_destroy(struct pipe_screen *pscreen)
 100 {
 101         struct vc4_screen *screen = vc4_screen(pscreen);
 102
 103         util_hash_table_destroy(screen->bo_handles);
 104         vc4_bufmgr_destroy(pscreen);
 105         slab_destroy_parent(&screen->transfer_pool);
 106         free(screen->ro);
 107
 108 #if USE_VC4_SIMULATOR
 109         vc4_simulator_destroy(screen);
 110 #endif
 111
 112         close(screen->fd);
 113         ralloc_free(pscreen);
 114 }
 115
 116 static int
 117 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 118 {
 119         switch (param) {
 120                 /* Supported features (boolean caps). */
 121         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 122         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 123         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 124         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 125         case PIPE_CAP_NPOT_TEXTURES:
 126         case PIPE_CAP_SHAREABLE_SHADERS:
 127         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 128         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 129         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 130         case PIPE_CAP_TWO_SIDED_STENCIL:
 131         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 132         case PIPE_CAP_TEXTURE_SWIZZLE:
 133         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 134         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 135                 return 1;
 136
 137                 /* lying for GL 2.0 */
 138         case PIPE_CAP_OCCLUSION_QUERY:
 139         case PIPE_CAP_POINT_SPRITE:
 140                 return 1;
 141
 142         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 143                 return 256;
 144
 145         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 146                 return 120;
 147
 148         case PIPE_CAP_MAX_VIEWPORTS:
 149                 return 1;
 150
 151         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 152         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 153                 return 1;
 154
 155         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 156         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 157                 return 1;
 158
 159                 /* Unsupported features. */
 160         case PIPE_CAP_ANISOTROPIC_FILTER:
 161         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 162         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 163         case PIPE_CAP_CUBE_MAP_ARRAY:
 164         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 165         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 166         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 167         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 168         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 169         case PIPE_CAP_TGSI_INSTANCEID:
 170         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 171         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 172         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 173         case PIPE_CAP_COMPUTE:
 174         case PIPE_CAP_START_INSTANCE:
 175         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 176         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 177         case PIPE_CAP_TGSI_TEXCOORD:
 178         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 179         case PIPE_CAP_CONDITIONAL_RENDER:
 180         case PIPE_CAP_PRIMITIVE_RESTART:
 181         case PIPE_CAP_TEXTURE_BARRIER:
 182         case PIPE_CAP_SM3:
 183         case PIPE_CAP_INDEP_BLEND_ENABLE:
 184         case PIPE_CAP_INDEP_BLEND_FUNC:
 185         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 186         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 187         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 188         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 189         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 190         case PIPE_CAP_USER_VERTEX_BUFFERS:
 191         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 192         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 193         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 194         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 195         case PIPE_CAP_TEXTURE_GATHER_SM5:
 196         case PIPE_CAP_FAKE_SW_MSAA:
 197         case PIPE_CAP_TEXTURE_QUERY_LOD:
 198         case PIPE_CAP_SAMPLE_SHADING:
 199         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 200         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 201         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 202         case PIPE_CAP_MAX_TEXEL_OFFSET:
 203         case PIPE_CAP_MAX_VERTEX_STREAMS:
 204         case PIPE_CAP_DRAW_INDIRECT:
 205         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 206         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 207         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 208         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 209         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 210         case PIPE_CAP_CLIP_HALFZ:
 211         case PIPE_CAP_VERTEXID_NOBASE:
 212         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 213         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 214         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 215         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 216         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 217         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 218         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 219         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 220         case PIPE_CAP_TGSI_TXQS:
 221         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 222         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 223         case PIPE_CAP_CLEAR_TEXTURE:
 224         case PIPE_CAP_DRAW_PARAMETERS:
 225         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 226         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 227         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 228         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 229         case PIPE_CAP_INVALIDATE_BUFFER:
 230         case PIPE_CAP_GENERATE_MIPMAP:
 231         case PIPE_CAP_STRING_MARKER:
 232         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 233         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 234         case PIPE_CAP_QUERY_MEMORY_INFO:
 235         case PIPE_CAP_PCI_GROUP:
 236         case PIPE_CAP_PCI_BUS:
 237         case PIPE_CAP_PCI_DEVICE:
 238         case PIPE_CAP_PCI_FUNCTION:
 239         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 240         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 241         case PIPE_CAP_CULL_DISTANCE:
 242         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 243         case PIPE_CAP_TGSI_VOTE:
 244         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 245         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 246         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 247         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 248         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 249         case PIPE_CAP_NATIVE_FENCE_FD:
 250         case PIPE_CAP_TGSI_FS_FBFETCH:
 251         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 252         case PIPE_CAP_DOUBLES:
 253         case PIPE_CAP_INT64:
 254         case PIPE_CAP_INT64_DIVMOD:
 255         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 256         case PIPE_CAP_TGSI_CLOCK:
 257         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 258         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 259         case PIPE_CAP_TGSI_BALLOT:
 260         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 261         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 262         case PIPE_CAP_POST_DEPTH_COVERAGE:
 263         case PIPE_CAP_BINDLESS_TEXTURE:
 264                 return 0;
 265
 266                 /* Stream output. */
 267         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 268         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 269         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 270         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 271         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 272                 return 0;
 273
 274                 /* Geometry shader output, unsupported. */
 275         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 276         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 277                 return 0;
 278
 279                 /* Texturing. */
 280         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 281         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 282                 return VC4_MAX_MIP_LEVELS;
 283         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 284                 /* Note: Not supported in hardware, just faking it. */
 285                 return 5;
 286         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 287                 return 0;
 288
 289                 /* Render targets. */
 290         case PIPE_CAP_MAX_RENDER_TARGETS:
 291                 return 1;
 292
 293                 /* Queries. */
 294         case PIPE_CAP_QUERY_TIME_ELAPSED:
 295         case PIPE_CAP_QUERY_TIMESTAMP:
 296                 return 0;
 297
 298         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 299         case PIPE_CAP_MIN_TEXEL_OFFSET:
 300                 return 0;
 301
 302         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 303                 return 2048;
 304
 305         case PIPE_CAP_ENDIANNESS:
 306                 return PIPE_ENDIAN_LITTLE;
 307
 308         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 309                 return 64;
 310
 311         case PIPE_CAP_VENDOR_ID:
 312                 return 0x14E4;
 313         case PIPE_CAP_DEVICE_ID:
 314                 return 0xFFFFFFFF;
 315         case PIPE_CAP_ACCELERATED:
 316                 return 1;
 317         case PIPE_CAP_VIDEO_MEMORY: {
 318                 uint64_t system_memory;
 319
 320                 if (!os_get_total_physical_memory(&system_memory))
 321                         return 0;
 322
 323                 return (int)(system_memory >> 20);
 324         }
 325         case PIPE_CAP_UMA:
 326                 return 1;
 327
 328         default:
 329                 fprintf(stderr, "unknown param %d\n", param);
 330                 return 0;
 331         }
 332 }
 333
 334 static float
 335 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 336 {
 337         switch (param) {
 338         case PIPE_CAPF_MAX_LINE_WIDTH:
 339         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 340                 return 32;
 341
 342         case PIPE_CAPF_MAX_POINT_WIDTH:
 343         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 344                 return 512.0f;
 345
 346         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 347                 return 0.0f;
 348         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 349                 return 0.0f;
 350         case PIPE_CAPF_GUARD_BAND_LEFT:
 351         case PIPE_CAPF_GUARD_BAND_TOP:
 352         case PIPE_CAPF_GUARD_BAND_RIGHT:
 353         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 354                 return 0.0f;
 355         default:
 356                 fprintf(stderr, "unknown paramf %d\n", param);
 357                 return 0;
 358         }
 359 }
 360
 361 static int
 362 vc4_screen_get_shader_param(struct pipe_screen *pscreen,
 363                             enum pipe_shader_type shader,
 364                             enum pipe_shader_cap param)
 365 {
 366         if (shader != PIPE_SHADER_VERTEX &&
 367             shader != PIPE_SHADER_FRAGMENT) {
 368                 return 0;
 369         }
 370
 371         /* this is probably not totally correct.. but it's a start: */
 372         switch (param) {
 373         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 374         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 375         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 376         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 377                 return 16384;
 378
 379         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 380                 return vc4_screen(pscreen)->has_control_flow;
 381
 382         case PIPE_SHADER_CAP_MAX_INPUTS:
 383                 return 8;
 384         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 385                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 386         case PIPE_SHADER_CAP_MAX_TEMPS:
 387                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 388         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 389                 return 16 * 1024 * sizeof(float);
 390         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 391                 return 1;
 392         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 393                 return 0;
 394         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 395         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 396         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 397                 return 0;
 398         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 399                 return 1;
 400         case PIPE_SHADER_CAP_SUBROUTINES:
 401                 return 0;
 402         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 403                 return 0;
 404         case PIPE_SHADER_CAP_INTEGERS:
 405                 return 1;
 406         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 407         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 408         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 409         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 410                 return 0;
 411         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 412         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 413                 return VC4_MAX_TEXTURE_SAMPLERS;
 414         case PIPE_SHADER_CAP_PREFERRED_IR:
 415                 return PIPE_SHADER_IR_NIR;
 416         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 417                 return 0;
 418         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 419                 return 32;
 420         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 421         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 422         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 423         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 424                 return 0;
 425         default:
 426                 fprintf(stderr, "unknown shader param %d\n", param);
 427                 return 0;
 428         }
 429         return 0;
 430 }
 431
 432 static boolean
 433 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 434                                enum pipe_format format,
 435                                enum pipe_texture_target target,
 436                                unsigned sample_count,
 437                                unsigned usage)
 438 {
 439         struct vc4_screen *screen = vc4_screen(pscreen);
 440         unsigned retval = 0;
 441
 442         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 443                 return FALSE;
 444
 445         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 446             !util_format_is_supported(format, usage)) {
 447                 return FALSE;
 448         }
 449
 450         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 451                 switch (format) {
 452                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 453                 case PIPE_FORMAT_R32G32B32_FLOAT:
 454                 case PIPE_FORMAT_R32G32_FLOAT:
 455                 case PIPE_FORMAT_R32_FLOAT:
 456                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 457                 case PIPE_FORMAT_R32G32B32_SNORM:
 458                 case PIPE_FORMAT_R32G32_SNORM:
 459                 case PIPE_FORMAT_R32_SNORM:
 460                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 461                 case PIPE_FORMAT_R32G32B32_SSCALED:
 462                 case PIPE_FORMAT_R32G32_SSCALED:
 463                 case PIPE_FORMAT_R32_SSCALED:
 464                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 465                 case PIPE_FORMAT_R16G16B16_UNORM:
 466                 case PIPE_FORMAT_R16G16_UNORM:
 467                 case PIPE_FORMAT_R16_UNORM:
 468                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 469                 case PIPE_FORMAT_R16G16B16_SNORM:
 470                 case PIPE_FORMAT_R16G16_SNORM:
 471                 case PIPE_FORMAT_R16_SNORM:
 472                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 473                 case PIPE_FORMAT_R16G16B16_USCALED:
 474                 case PIPE_FORMAT_R16G16_USCALED:
 475                 case PIPE_FORMAT_R16_USCALED:
 476                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 477                 case PIPE_FORMAT_R16G16B16_SSCALED:
 478                 case PIPE_FORMAT_R16G16_SSCALED:
 479                 case PIPE_FORMAT_R16_SSCALED:
 480                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 481                 case PIPE_FORMAT_R8G8B8_UNORM:
 482                 case PIPE_FORMAT_R8G8_UNORM:
 483                 case PIPE_FORMAT_R8_UNORM:
 484                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 485                 case PIPE_FORMAT_R8G8B8_SNORM:
 486                 case PIPE_FORMAT_R8G8_SNORM:
 487                 case PIPE_FORMAT_R8_SNORM:
 488                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 489                 case PIPE_FORMAT_R8G8B8_USCALED:
 490                 case PIPE_FORMAT_R8G8_USCALED:
 491                 case PIPE_FORMAT_R8_USCALED:
 492                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 493                 case PIPE_FORMAT_R8G8B8_SSCALED:
 494                 case PIPE_FORMAT_R8G8_SSCALED:
 495                 case PIPE_FORMAT_R8_SSCALED:
 496                         retval |= PIPE_BIND_VERTEX_BUFFER;
 497                         break;
 498                 default:
 499                         break;
 500                 }
 501         }
 502
 503         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 504             vc4_rt_format_supported(format)) {
 505                 retval |= PIPE_BIND_RENDER_TARGET;
 506         }
 507
 508         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 509             vc4_tex_format_supported(format) &&
 510             (format != PIPE_FORMAT_ETC1_RGB8 || screen->has_etc1)) {
 511                 retval |= PIPE_BIND_SAMPLER_VIEW;
 512         }
 513
 514         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 515             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 516              format == PIPE_FORMAT_X8Z24_UNORM)) {
 517                 retval |= PIPE_BIND_DEPTH_STENCIL;
 518         }
 519
 520         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 521             (format == PIPE_FORMAT_I8_UINT ||
 522              format == PIPE_FORMAT_I16_UINT)) {
 523                 retval |= PIPE_BIND_INDEX_BUFFER;
 524         }
 525
 526 #if 0
 527         if (retval != usage) {
 528                 fprintf(stderr,
 529                         "not supported: format=%s, target=%d, sample_count=%d, "
 530                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 531                         target, sample_count, usage, retval);
 532         }
 533 #endif
 534
 535         return retval == usage;
 536 }
 537
 538 static void
 539 vc4_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 540                                   enum pipe_format format, int max,
 541                                   uint64_t *modifiers,
 542                                   unsigned int *external_only,
 543                                   int *count)
 544 {
 545         if (!modifiers) {
 546                 *count = 2;
 547                 return;
 548         }
 549
 550         *count = MIN2(max, 2);
 551
 552         /* We support both modifiers (tiled and linear) for all sampler
 553          * formats.
 554          */
 555         modifiers[0] = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
 556         if (external_only)
 557                 external_only[0] = false;
 558         if (max < 2)
 559                 return;
 560
 561         modifiers[1] = DRM_FORMAT_MOD_LINEAR;
 562         if (external_only)
 563                 external_only[1] = false;
 564 }
 565
 566 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 567
 568 static unsigned handle_hash(void *key)
 569 {
 570     return PTR_TO_UINT(key);
 571 }
 572
 573 static int handle_compare(void *key1, void *key2)
 574 {
 575     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 576 }
 577
 578 static bool
 579 vc4_has_feature(struct vc4_screen *screen, uint32_t feature)
 580 {
 581         struct drm_vc4_get_param p = {
 582                 .param = feature,
 583         };
 584         int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &p);
 585
 586         if (ret != 0)
 587                 return false;
 588
 589         return p.value;
 590 }
 591
 592 static bool
 593 vc4_get_chip_info(struct vc4_screen *screen)
 594 {
 595         struct drm_vc4_get_param ident0 = {
 596                 .param = DRM_VC4_PARAM_V3D_IDENT0,
 597         };
 598         struct drm_vc4_get_param ident1 = {
 599                 .param = DRM_VC4_PARAM_V3D_IDENT1,
 600         };
 601         int ret;
 602
 603         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
 604         if (ret != 0) {
 605                 if (errno == EINVAL) {
 606                         /* Backwards compatibility with 2835 kernels which
 607                          * only do V3D 2.1.
 608                          */
 609                         screen->v3d_ver = 21;
 610                         return true;
 611                 } else {
 612                         fprintf(stderr, "Couldn't get V3D IDENT0: %s\n",
 613                                 strerror(errno));
 614                         return false;
 615                 }
 616         }
 617         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident1);
 618         if (ret != 0) {
 619                 fprintf(stderr, "Couldn't get V3D IDENT1: %s\n",
 620                         strerror(errno));
 621                 return false;
 622         }
 623
 624         uint32_t major = (ident0.value >> 24) & 0xff;
 625         uint32_t minor = (ident1.value >> 0) & 0xf;
 626         screen->v3d_ver = major * 10 + minor;
 627
 628         if (screen->v3d_ver != 21 && screen->v3d_ver != 26) {
 629                 fprintf(stderr,
 630                         "V3D %d.%d not supported by this version of Mesa.\n",
 631                         screen->v3d_ver / 10,
 632                         screen->v3d_ver % 10);
 633                 return false;
 634         }
 635
 636         return true;
 637 }
 638
 639 struct pipe_screen *
 640 vc4_screen_create(int fd, struct renderonly *ro)
 641 {
 642         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 643         struct pipe_screen *pscreen;
 644
 645         pscreen = &screen->base;
 646
 647         pscreen->destroy = vc4_screen_destroy;
 648         pscreen->get_param = vc4_screen_get_param;
 649         pscreen->get_paramf = vc4_screen_get_paramf;
 650         pscreen->get_shader_param = vc4_screen_get_shader_param;
 651         pscreen->context_create = vc4_context_create;
 652         pscreen->is_format_supported = vc4_screen_is_format_supported;
 653
 654         screen->fd = fd;
 655         if (ro) {
 656                 screen->ro = renderonly_dup(ro);
 657                 if (!screen->ro) {
 658                         fprintf(stderr, "Failed to dup renderonly object\n");
 659                         ralloc_free(screen);
 660                         return NULL;
 661                 }
 662         }
 663
 664         list_inithead(&screen->bo_cache.time_list);
 665         (void) mtx_init(&screen->bo_handles_mutex, mtx_plain);
 666         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 667
 668         screen->has_control_flow =
 669                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_BRANCHES);
 670         screen->has_etc1 =
 671                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_ETC1);
 672         screen->has_threaded_fs =
 673                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_THREADED_FS);
 674
 675         if (!vc4_get_chip_info(screen))
 676                 goto fail;
 677
 678         util_cpu_detect();
 679
 680         slab_create_parent(&screen->transfer_pool, sizeof(struct vc4_transfer), 16);
 681
 682         vc4_fence_init(screen);
 683
 684         vc4_debug = debug_get_option_vc4_debug();
 685         if (vc4_debug & VC4_DEBUG_SHADERDB)
 686                 vc4_debug |= VC4_DEBUG_NORAST;
 687
 688 #if USE_VC4_SIMULATOR
 689         vc4_simulator_init(screen);
 690 #endif
 691
 692         vc4_resource_screen_init(pscreen);
 693
 694         pscreen->get_name = vc4_screen_get_name;
 695         pscreen->get_vendor = vc4_screen_get_vendor;
 696         pscreen->get_device_vendor = vc4_screen_get_vendor;
 697         pscreen->get_compiler_options = vc4_screen_get_compiler_options;
 698         pscreen->query_dmabuf_modifiers = vc4_screen_query_dmabuf_modifiers;
 699
 700         return pscreen;
 701
 702 fail:
 703         close(fd);
 704         ralloc_free(pscreen);
 705         return NULL;
 706 }