src/gallium/drivers/v3d/v3d_screen.c

   1 /*
   2  * Copyright © 2014-2017 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 <sys/sysinfo.h>
  26
  27 #include "common/v3d_device_info.h"
  28 #include "util/os_misc.h"
  29 #include "pipe/p_defines.h"
  30 #include "pipe/p_screen.h"
  31 #include "pipe/p_state.h"
  32
  33 #include "util/u_debug.h"
  34 #include "util/u_memory.h"
  35 #include "util/u_format.h"
  36 #include "util/u_hash_table.h"
  37 #include "util/u_screen.h"
  38 #include "util/u_transfer_helper.h"
  39 #include "util/ralloc.h"
  40 #include "util/xmlconfig.h"
  41
  42 #include <xf86drm.h>
  43 #include "v3d_screen.h"
  44 #include "v3d_context.h"
  45 #include "v3d_resource.h"
  46 #include "compiler/v3d_compiler.h"
  47 #include "drm-uapi/drm_fourcc.h"
  48
  49 static const char *
  50 v3d_screen_get_name(struct pipe_screen *pscreen)
  51 {
  52         struct v3d_screen *screen = v3d_screen(pscreen);
  53
  54         if (!screen->name) {
  55                 screen->name = ralloc_asprintf(screen,
  56                                                "V3D %d.%d",
  57                                                screen->devinfo.ver / 10,
  58                                                screen->devinfo.ver % 10);
  59         }
  60
  61         return screen->name;
  62 }
  63
  64 static const char *
  65 v3d_screen_get_vendor(struct pipe_screen *pscreen)
  66 {
  67         return "Broadcom";
  68 }
  69
  70 static void
  71 v3d_screen_destroy(struct pipe_screen *pscreen)
  72 {
  73         struct v3d_screen *screen = v3d_screen(pscreen);
  74
  75         util_hash_table_destroy(screen->bo_handles);
  76         v3d_bufmgr_destroy(pscreen);
  77         slab_destroy_parent(&screen->transfer_pool);
  78         free(screen->ro);
  79
  80         if (using_v3d_simulator)
  81                 v3d_simulator_destroy(screen);
  82
  83         v3d_compiler_free(screen->compiler);
  84         u_transfer_helper_destroy(pscreen->transfer_helper);
  85
  86         close(screen->fd);
  87         ralloc_free(pscreen);
  88 }
  89
  90 static bool
  91 v3d_has_feature(struct v3d_screen *screen, enum drm_v3d_param feature)
  92 {
  93         struct drm_v3d_get_param p = {
  94                 .param = feature,
  95         };
  96         int ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &p);
  97
  98         if (ret != 0)
  99                 return false;
 100
 101         return p.value;
 102 }
 103
 104 static int
 105 v3d_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 106 {
 107         struct v3d_screen *screen = v3d_screen(pscreen);
 108
 109         switch (param) {
 110                 /* Supported features (boolean caps). */
 111         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 112         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 113         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 114         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 115         case PIPE_CAP_NPOT_TEXTURES:
 116         case PIPE_CAP_SHAREABLE_SHADERS:
 117         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 118         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 119         case PIPE_CAP_TEXTURE_SWIZZLE:
 120         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 121         case PIPE_CAP_START_INSTANCE:
 122         case PIPE_CAP_TGSI_INSTANCEID:
 123         case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 124         case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
 125         case PIPE_CAP_VERTEX_SHADER_SATURATE:
 126         case PIPE_CAP_TEXTURE_QUERY_LOD:
 127         case PIPE_CAP_PRIMITIVE_RESTART:
 128         case PIPE_CAP_OCCLUSION_QUERY:
 129         case PIPE_CAP_POINT_SPRITE:
 130         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 131         case PIPE_CAP_DRAW_INDIRECT:
 132         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 133         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 134         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 135         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 136         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 137         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 138         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 139                 return 1;
 140
 141         case PIPE_CAP_PACKED_UNIFORMS:
 142                 /* We can't enable this flag, because it results in load_ubo
 143                  * intrinsics across a 16b boundary, but v3d's TMU general
 144                  * memory accesses wrap on 16b boundaries.
 145                  */
 146                 return 0;
 147
 148         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 149                 /* XXX perf: we don't want to emit these extra blits for
 150                  * glReadPixels(), since we still have to do an uncached read
 151                  * from the GPU of the result after waiting for the TFU blit
 152                  * to happen.  However, disabling this introduces instability
 153                  * in
 154                  * dEQP-GLES31.functional.image_load_store.early_fragment_tests.*
 155                  * and corruption in chromium's rendering.
 156                  */
 157                 return 1;
 158
 159         case PIPE_CAP_COMPUTE:
 160                 return screen->has_csd && screen->devinfo.ver >= 41;
 161
 162         case PIPE_CAP_GENERATE_MIPMAP:
 163                 return v3d_has_feature(screen, DRM_V3D_PARAM_SUPPORTS_TFU);
 164
 165         case PIPE_CAP_INDEP_BLEND_ENABLE:
 166                 return screen->devinfo.ver >= 40;
 167
 168         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 169                 return 256;
 170
 171         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 172                 if (screen->devinfo.ver < 40)
 173                         return 0;
 174                 return 4;
 175
 176         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 177                 return 4;
 178
 179         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 180                 return 330;
 181
 182         case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 183                 return 140;
 184
 185         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 186                 return 1;
 187         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 188                 return 0;
 189         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 190                 if (screen->devinfo.ver >= 40)
 191                         return 0;
 192                 else
 193                         return 1;
 194         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 195                 if (screen->devinfo.ver >= 40)
 196                         return 1;
 197                 else
 198                         return 0;
 199
 200         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 201         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 202         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 203                 return 1;
 204
 205         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 206                 return 4;
 207
 208         case PIPE_CAP_MAX_VARYINGS:
 209                 return V3D_MAX_FS_INPUTS / 4;
 210
 211                 /* Texturing. */
 212         case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 213                 if (screen->devinfo.ver < 40)
 214                         return 2048;
 215                 else if (screen->nonmsaa_texture_size_limit)
 216                         return 7680;
 217                 else
 218                         return 4096;
 219         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 220         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 221                 if (screen->devinfo.ver < 40)
 222                         return 12;
 223                 else
 224                         return V3D_MAX_MIP_LEVELS;
 225         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 226                 return 2048;
 227
 228                 /* Render targets. */
 229         case PIPE_CAP_MAX_RENDER_TARGETS:
 230                 return 4;
 231
 232         case PIPE_CAP_VENDOR_ID:
 233                 return 0x14E4;
 234         case PIPE_CAP_ACCELERATED:
 235                 return 1;
 236         case PIPE_CAP_VIDEO_MEMORY: {
 237                 uint64_t system_memory;
 238
 239                 if (!os_get_total_physical_memory(&system_memory))
 240                         return 0;
 241
 242                 return (int)(system_memory >> 20);
 243         }
 244         case PIPE_CAP_UMA:
 245                 return 1;
 246
 247         default:
 248                 return u_pipe_screen_get_param_defaults(pscreen, param);
 249         }
 250 }
 251
 252 static float
 253 v3d_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 254 {
 255         switch (param) {
 256         case PIPE_CAPF_MAX_LINE_WIDTH:
 257         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 258                 return 32;
 259
 260         case PIPE_CAPF_MAX_POINT_WIDTH:
 261         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 262                 return 512.0f;
 263
 264         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 265                 return 0.0f;
 266         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 267                 return 16.0f;
 268
 269         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 270         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 271         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 272                 return 0.0f;
 273         default:
 274                 fprintf(stderr, "unknown paramf %d\n", param);
 275                 return 0;
 276         }
 277 }
 278
 279 static int
 280 v3d_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 281                            enum pipe_shader_cap param)
 282 {
 283         struct v3d_screen *screen = v3d_screen(pscreen);
 284
 285         switch (shader) {
 286         case PIPE_SHADER_VERTEX:
 287         case PIPE_SHADER_FRAGMENT:
 288                 break;
 289         case PIPE_SHADER_COMPUTE:
 290                 if (!screen->has_csd)
 291                         return 0;
 292                 break;
 293         default:
 294                 return 0;
 295         }
 296
 297         /* this is probably not totally correct.. but it's a start: */
 298         switch (param) {
 299         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 300         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 301         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 302         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 303                 return 16384;
 304
 305         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 306                 return UINT_MAX;
 307
 308         case PIPE_SHADER_CAP_MAX_INPUTS:
 309                 if (shader == PIPE_SHADER_FRAGMENT)
 310                         return V3D_MAX_FS_INPUTS / 4;
 311                 else
 312                         return V3D_MAX_VS_INPUTS / 4;
 313         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 314                 if (shader == PIPE_SHADER_FRAGMENT)
 315                         return 4;
 316                 else
 317                         return V3D_MAX_FS_INPUTS / 4;
 318         case PIPE_SHADER_CAP_MAX_TEMPS:
 319                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 320         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 321                 /* Note: Limited by the offset size in
 322                  * v3d_unit_data_create().
 323                  */
 324                 return 16 * 1024 * sizeof(float);
 325         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 326                 return 16;
 327         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 328                 return 0;
 329         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 330         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 331                 return 0;
 332         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 333                 return 1;
 334         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 335                 return 1;
 336         case PIPE_SHADER_CAP_SUBROUTINES:
 337                 return 0;
 338         case PIPE_SHADER_CAP_INTEGERS:
 339                 return 1;
 340         case PIPE_SHADER_CAP_FP16:
 341         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 342         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 343         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 344         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 345         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 346         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 347         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 348         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 349                 return 0;
 350         case PIPE_SHADER_CAP_SCALAR_ISA:
 351                 return 1;
 352         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 353         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 354                 return V3D_MAX_TEXTURE_SAMPLERS;
 355
 356         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 357                 if (shader == PIPE_SHADER_VERTEX)
 358                         return 0;
 359
 360                 return PIPE_MAX_SHADER_BUFFERS;
 361
 362         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 363                 if (screen->devinfo.ver < 41)
 364                         return 0;
 365                 else
 366                         return PIPE_MAX_SHADER_IMAGES;
 367
 368         case PIPE_SHADER_CAP_PREFERRED_IR:
 369                 return PIPE_SHADER_IR_NIR;
 370         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 371                 return 1 << PIPE_SHADER_IR_NIR;
 372         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 373                 return 32;
 374         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 375         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 376                 return 0;
 377         default:
 378                 fprintf(stderr, "unknown shader param %d\n", param);
 379                 return 0;
 380         }
 381         return 0;
 382 }
 383
 384 static int
 385 v3d_get_compute_param(struct pipe_screen *pscreen, enum pipe_shader_ir ir_type,
 386                       enum pipe_compute_cap param, void *ret)
 387 {
 388         struct v3d_screen *screen = v3d_screen(pscreen);
 389
 390         if (!screen->has_csd)
 391                 return 0;
 392
 393 #define RET(x) do {                                     \
 394                 if (ret)                                \
 395                         memcpy(ret, x, sizeof(x));      \
 396                 return sizeof(x);                       \
 397         } while (0)
 398
 399         switch (param) {
 400         case PIPE_COMPUTE_CAP_ADDRESS_BITS:
 401                 RET((uint32_t []) { 32 });
 402                 break;
 403
 404         case PIPE_COMPUTE_CAP_IR_TARGET:
 405                 sprintf(ret, "v3d");
 406                 return strlen(ret);
 407
 408         case PIPE_COMPUTE_CAP_GRID_DIMENSION:
 409                 RET((uint64_t []) { 3 });
 410
 411         case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
 412                 /* GL_MAX_COMPUTE_SHADER_WORK_GROUP_COUNT: The CSD has a
 413                  * 16-bit field for the number of workgroups in each
 414                  * dimension.
 415                  */
 416                 RET(((uint64_t []) { 65535, 65535, 65535 }));
 417
 418         case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
 419                 /* GL_MAX_COMPUTE_WORK_GROUP_SIZE */
 420                 RET(((uint64_t []) { 256, 256, 256 }));
 421
 422         case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
 423         case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
 424                 /* GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS: This is
 425                  * limited by WG_SIZE in the CSD.
 426                  */
 427                 RET((uint64_t []) { 256 });
 428
 429         case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
 430                 RET((uint64_t []) { 1024 * 1024 * 1024 });
 431
 432         case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
 433                 /* GL_MAX_COMPUTE_SHARED_MEMORY_SIZE */
 434                 RET((uint64_t []) { 32768 });
 435
 436         case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
 437         case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
 438                 RET((uint64_t []) { 4096 });
 439
 440         case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE: {
 441                 struct sysinfo si;
 442                 sysinfo(&si);
 443                 RET((uint64_t []) { si.totalram });
 444         }
 445
 446         case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
 447                 /* OpenCL only */
 448                 RET((uint32_t []) { 0 });
 449
 450         case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
 451                 RET((uint32_t []) { 1 });
 452
 453         case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
 454                 RET((uint32_t []) { 1 });
 455
 456         case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
 457                 RET((uint32_t []) { 16 });
 458
 459         }
 460
 461         return 0;
 462 }
 463
 464 static boolean
 465 v3d_screen_is_format_supported(struct pipe_screen *pscreen,
 466                                enum pipe_format format,
 467                                enum pipe_texture_target target,
 468                                unsigned sample_count,
 469                                unsigned storage_sample_count,
 470                                unsigned usage)
 471 {
 472         struct v3d_screen *screen = v3d_screen(pscreen);
 473
 474         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
 475                 return false;
 476
 477         if (sample_count > 1 && sample_count != V3D_MAX_SAMPLES)
 478                 return FALSE;
 479
 480         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 481                 return FALSE;
 482         }
 483
 484         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 485                 switch (format) {
 486                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 487                 case PIPE_FORMAT_R32G32B32_FLOAT:
 488                 case PIPE_FORMAT_R32G32_FLOAT:
 489                 case PIPE_FORMAT_R32_FLOAT:
 490                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 491                 case PIPE_FORMAT_R32G32B32_SNORM:
 492                 case PIPE_FORMAT_R32G32_SNORM:
 493                 case PIPE_FORMAT_R32_SNORM:
 494                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 495                 case PIPE_FORMAT_R32G32B32_SSCALED:
 496                 case PIPE_FORMAT_R32G32_SSCALED:
 497                 case PIPE_FORMAT_R32_SSCALED:
 498                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 499                 case PIPE_FORMAT_R16G16B16_UNORM:
 500                 case PIPE_FORMAT_R16G16_UNORM:
 501                 case PIPE_FORMAT_R16_UNORM:
 502                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 503                 case PIPE_FORMAT_R16G16B16_SNORM:
 504                 case PIPE_FORMAT_R16G16_SNORM:
 505                 case PIPE_FORMAT_R16_SNORM:
 506                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 507                 case PIPE_FORMAT_R16G16B16_USCALED:
 508                 case PIPE_FORMAT_R16G16_USCALED:
 509                 case PIPE_FORMAT_R16_USCALED:
 510                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 511                 case PIPE_FORMAT_R16G16B16_SSCALED:
 512                 case PIPE_FORMAT_R16G16_SSCALED:
 513                 case PIPE_FORMAT_R16_SSCALED:
 514                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 515                 case PIPE_FORMAT_R8G8B8_UNORM:
 516                 case PIPE_FORMAT_R8G8_UNORM:
 517                 case PIPE_FORMAT_R8_UNORM:
 518                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 519                 case PIPE_FORMAT_R8G8B8_SNORM:
 520                 case PIPE_FORMAT_R8G8_SNORM:
 521                 case PIPE_FORMAT_R8_SNORM:
 522                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 523                 case PIPE_FORMAT_R8G8B8_USCALED:
 524                 case PIPE_FORMAT_R8G8_USCALED:
 525                 case PIPE_FORMAT_R8_USCALED:
 526                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 527                 case PIPE_FORMAT_R8G8B8_SSCALED:
 528                 case PIPE_FORMAT_R8G8_SSCALED:
 529                 case PIPE_FORMAT_R8_SSCALED:
 530                 case PIPE_FORMAT_R10G10B10A2_UNORM:
 531                 case PIPE_FORMAT_B10G10R10A2_UNORM:
 532                 case PIPE_FORMAT_R10G10B10A2_SNORM:
 533                 case PIPE_FORMAT_B10G10R10A2_SNORM:
 534                 case PIPE_FORMAT_R10G10B10A2_USCALED:
 535                 case PIPE_FORMAT_B10G10R10A2_USCALED:
 536                 case PIPE_FORMAT_R10G10B10A2_SSCALED:
 537                 case PIPE_FORMAT_B10G10R10A2_SSCALED:
 538                         break;
 539                 default:
 540                         return FALSE;
 541                 }
 542         }
 543
 544         /* FORMAT_NONE gets allowed for ARB_framebuffer_no_attachments's probe
 545          * of FRAMEBUFFER_MAX_SAMPLES
 546          */
 547         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 548             format != PIPE_FORMAT_NONE &&
 549             !v3d_rt_format_supported(&screen->devinfo, format)) {
 550                 return FALSE;
 551         }
 552
 553         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 554             !v3d_tex_format_supported(&screen->devinfo, format)) {
 555                 return FALSE;
 556         }
 557
 558         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 559             !(format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 560               format == PIPE_FORMAT_X8Z24_UNORM ||
 561               format == PIPE_FORMAT_Z16_UNORM ||
 562               format == PIPE_FORMAT_Z32_FLOAT ||
 563               format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)) {
 564                 return FALSE;
 565         }
 566
 567         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 568             !(format == PIPE_FORMAT_I8_UINT ||
 569               format == PIPE_FORMAT_I16_UINT ||
 570               format == PIPE_FORMAT_I32_UINT)) {
 571                 return FALSE;
 572         }
 573
 574         return TRUE;
 575 }
 576
 577 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 578
 579 static unsigned handle_hash(void *key)
 580 {
 581     return PTR_TO_UINT(key);
 582 }
 583
 584 static int handle_compare(void *key1, void *key2)
 585 {
 586     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 587 }
 588
 589 static const void *
 590 v3d_screen_get_compiler_options(struct pipe_screen *pscreen,
 591                                 enum pipe_shader_ir ir, unsigned shader)
 592 {
 593         return &v3d_nir_options;
 594 }
 595
 596 static void
 597 v3d_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 598                                   enum pipe_format format, int max,
 599                                   uint64_t *modifiers,
 600                                   unsigned int *external_only,
 601                                   int *count)
 602 {
 603         int i;
 604         uint64_t available_modifiers[] = {
 605                 DRM_FORMAT_MOD_BROADCOM_UIF,
 606                 DRM_FORMAT_MOD_LINEAR,
 607         };
 608         int num_modifiers = ARRAY_SIZE(available_modifiers);
 609
 610         if (!modifiers) {
 611                 *count = num_modifiers;
 612                 return;
 613         }
 614
 615         *count = MIN2(max, num_modifiers);
 616         for (i = 0; i < *count; i++) {
 617                 modifiers[i] = available_modifiers[i];
 618                 if (external_only)
 619                         external_only[i] = false;
 620        }
 621 }
 622
 623 struct pipe_screen *
 624 v3d_screen_create(int fd, const struct pipe_screen_config *config,
 625                   struct renderonly *ro)
 626 {
 627         struct v3d_screen *screen = rzalloc(NULL, struct v3d_screen);
 628         struct pipe_screen *pscreen;
 629
 630         pscreen = &screen->base;
 631
 632         pscreen->destroy = v3d_screen_destroy;
 633         pscreen->get_param = v3d_screen_get_param;
 634         pscreen->get_paramf = v3d_screen_get_paramf;
 635         pscreen->get_shader_param = v3d_screen_get_shader_param;
 636         pscreen->get_compute_param = v3d_get_compute_param;
 637         pscreen->context_create = v3d_context_create;
 638         pscreen->is_format_supported = v3d_screen_is_format_supported;
 639
 640         screen->fd = fd;
 641         if (ro) {
 642                 screen->ro = renderonly_dup(ro);
 643                 if (!screen->ro) {
 644                         fprintf(stderr, "Failed to dup renderonly object\n");
 645                         ralloc_free(screen);
 646                         return NULL;
 647                 }
 648         }
 649         list_inithead(&screen->bo_cache.time_list);
 650         (void)mtx_init(&screen->bo_handles_mutex, mtx_plain);
 651         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 652
 653 #if defined(USE_V3D_SIMULATOR)
 654         v3d_simulator_init(screen);
 655 #endif
 656
 657         if (!v3d_get_device_info(screen->fd, &screen->devinfo, &v3d_ioctl))
 658                 goto fail;
 659
 660         /* We have to driCheckOption for the simulator mode to not assertion
 661          * fail on not having our XML config.
 662          */
 663         const char *nonmsaa_name = "v3d_nonmsaa_texture_size_limit";
 664         screen->nonmsaa_texture_size_limit =
 665                 driCheckOption(config->options, nonmsaa_name, DRI_BOOL) &&
 666                 driQueryOptionb(config->options, nonmsaa_name);
 667
 668         slab_create_parent(&screen->transfer_pool, sizeof(struct v3d_transfer), 16);
 669
 670         screen->has_csd = false; /* until the UABI is enabled. */
 671
 672         v3d_fence_init(screen);
 673
 674         v3d_process_debug_variable();
 675
 676         v3d_resource_screen_init(pscreen);
 677
 678         screen->compiler = v3d_compiler_init(&screen->devinfo);
 679
 680         pscreen->get_name = v3d_screen_get_name;
 681         pscreen->get_vendor = v3d_screen_get_vendor;
 682         pscreen->get_device_vendor = v3d_screen_get_vendor;
 683         pscreen->get_compiler_options = v3d_screen_get_compiler_options;
 684         pscreen->query_dmabuf_modifiers = v3d_screen_query_dmabuf_modifiers;
 685
 686         return pscreen;
 687
 688 fail:
 689         close(fd);
 690         ralloc_free(pscreen);
 691         return NULL;
 692 }