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 "util/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/u_hash_table.h"
  34 #include "util/u_screen.h"
  35 #include "util/u_transfer_helper.h"
  36 #include "util/ralloc.h"
  37
  38 #include <xf86drm.h>
  39 #include "v3d_screen.h"
  40 #include "v3d_context.h"
  41 #include "v3d_resource.h"
  42 #include "compiler/v3d_compiler.h"
  43 #include "drm-uapi/drm_fourcc.h"
  44
  45 static const char *
  46 v3d_screen_get_name(struct pipe_screen *pscreen)
  47 {
  48         struct v3d_screen *screen = v3d_screen(pscreen);
  49
  50         if (!screen->name) {
  51                 screen->name = ralloc_asprintf(screen,
  52                                                "V3D %d.%d",
  53                                                screen->devinfo.ver / 10,
  54                                                screen->devinfo.ver % 10);
  55         }
  56
  57         return screen->name;
  58 }
  59
  60 static const char *
  61 v3d_screen_get_vendor(struct pipe_screen *pscreen)
  62 {
  63         return "Broadcom";
  64 }
  65
  66 static void
  67 v3d_screen_destroy(struct pipe_screen *pscreen)
  68 {
  69         struct v3d_screen *screen = v3d_screen(pscreen);
  70
  71         util_hash_table_destroy(screen->bo_handles);
  72         v3d_bufmgr_destroy(pscreen);
  73         slab_destroy_parent(&screen->transfer_pool);
  74         free(screen->ro);
  75
  76         if (using_v3d_simulator)
  77                 v3d_simulator_destroy(screen);
  78
  79         v3d_compiler_free(screen->compiler);
  80         u_transfer_helper_destroy(pscreen->transfer_helper);
  81
  82         close(screen->fd);
  83         ralloc_free(pscreen);
  84 }
  85
  86 static bool
  87 v3d_has_feature(struct v3d_screen *screen, enum drm_v3d_param feature)
  88 {
  89         struct drm_v3d_get_param p = {
  90                 .param = feature,
  91         };
  92         int ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &p);
  93
  94         if (ret != 0)
  95                 return false;
  96
  97         return p.value;
  98 }
  99
 100 static int
 101 v3d_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 102 {
 103         struct v3d_screen *screen = v3d_screen(pscreen);
 104
 105         switch (param) {
 106                 /* Supported features (boolean caps). */
 107         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 108         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 109         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 110         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 111         case PIPE_CAP_NPOT_TEXTURES:
 112         case PIPE_CAP_SHAREABLE_SHADERS:
 113         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 114         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 115         case PIPE_CAP_TEXTURE_SWIZZLE:
 116         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 117         case PIPE_CAP_START_INSTANCE:
 118         case PIPE_CAP_TGSI_INSTANCEID:
 119         case PIPE_CAP_SM3:
 120         case PIPE_CAP_TEXTURE_QUERY_LOD:
 121         case PIPE_CAP_PRIMITIVE_RESTART:
 122         case PIPE_CAP_OCCLUSION_QUERY:
 123         case PIPE_CAP_POINT_SPRITE:
 124         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 125         case PIPE_CAP_COMPUTE:
 126         case PIPE_CAP_DRAW_INDIRECT:
 127         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 128         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 129         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 130         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 131         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 132         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 133         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 134                 return 1;
 135
 136         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 137            return 0;
 138
 139         case PIPE_CAP_GENERATE_MIPMAP:
 140                 return v3d_has_feature(screen, DRM_V3D_PARAM_SUPPORTS_TFU);
 141
 142         case PIPE_CAP_INDEP_BLEND_ENABLE:
 143                 return screen->devinfo.ver >= 40;
 144
 145         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 146                 return 256;
 147
 148         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 149                 if (screen->devinfo.ver < 40)
 150                         return 0;
 151                 return 4;
 152
 153         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 154                 return 4;
 155
 156         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 157                 return 330;
 158
 159         case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 160                 return 140;
 161
 162         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 163                 return 1;
 164         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 165                 return 0;
 166         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 167                 if (screen->devinfo.ver >= 40)
 168                         return 0;
 169                 else
 170                         return 1;
 171         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 172                 if (screen->devinfo.ver >= 40)
 173                         return 1;
 174                 else
 175                         return 0;
 176
 177         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 178         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 179         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 180                 return 1;
 181
 182         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 183                 return 4;
 184
 185         case PIPE_CAP_MAX_VARYINGS:
 186                 return V3D_MAX_FS_INPUTS / 4;
 187
 188                 /* Texturing. */
 189         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 190         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 191         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 192                 if (screen->devinfo.ver < 40)
 193                         return 12;
 194                 else
 195                         return V3D_MAX_MIP_LEVELS;
 196         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 197                 return 2048;
 198
 199                 /* Render targets. */
 200         case PIPE_CAP_MAX_RENDER_TARGETS:
 201                 return 4;
 202
 203         case PIPE_CAP_VENDOR_ID:
 204                 return 0x14E4;
 205         case PIPE_CAP_ACCELERATED:
 206                 return 1;
 207         case PIPE_CAP_VIDEO_MEMORY: {
 208                 uint64_t system_memory;
 209
 210                 if (!os_get_total_physical_memory(&system_memory))
 211                         return 0;
 212
 213                 return (int)(system_memory >> 20);
 214         }
 215         case PIPE_CAP_UMA:
 216                 return 1;
 217
 218         default:
 219                 return u_pipe_screen_get_param_defaults(pscreen, param);
 220         }
 221 }
 222
 223 static float
 224 v3d_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 225 {
 226         switch (param) {
 227         case PIPE_CAPF_MAX_LINE_WIDTH:
 228         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 229                 return 32;
 230
 231         case PIPE_CAPF_MAX_POINT_WIDTH:
 232         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 233                 return 512.0f;
 234
 235         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 236                 return 0.0f;
 237         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 238                 return 16.0f;
 239
 240         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 241         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 242         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 243                 return 0.0f;
 244         default:
 245                 fprintf(stderr, "unknown paramf %d\n", param);
 246                 return 0;
 247         }
 248 }
 249
 250 static int
 251 v3d_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 252                            enum pipe_shader_cap param)
 253 {
 254         struct v3d_screen *screen = v3d_screen(pscreen);
 255
 256         if (shader != PIPE_SHADER_VERTEX &&
 257             shader != PIPE_SHADER_FRAGMENT) {
 258                 return 0;
 259         }
 260
 261         /* this is probably not totally correct.. but it's a start: */
 262         switch (param) {
 263         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 264         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 265         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 266         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 267                 return 16384;
 268
 269         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 270                 return UINT_MAX;
 271
 272         case PIPE_SHADER_CAP_MAX_INPUTS:
 273                 if (shader == PIPE_SHADER_FRAGMENT)
 274                         return V3D_MAX_FS_INPUTS / 4;
 275                 else
 276                         return V3D_MAX_VS_INPUTS / 4;
 277         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 278                 if (shader == PIPE_SHADER_FRAGMENT)
 279                         return 4;
 280                 else
 281                         return V3D_MAX_FS_INPUTS / 4;
 282         case PIPE_SHADER_CAP_MAX_TEMPS:
 283                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 284         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 285                 /* Note: Limited by the offset size in
 286                  * v3d_unit_data_create().
 287                  */
 288                 return 16 * 1024 * sizeof(float);
 289         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 290                 return 16;
 291         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 292                 return 0;
 293         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 294         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 295         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 296                 return 0;
 297         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 298                 return 1;
 299         case PIPE_SHADER_CAP_SUBROUTINES:
 300                 return 0;
 301         case PIPE_SHADER_CAP_INTEGERS:
 302                 return 1;
 303         case PIPE_SHADER_CAP_FP16:
 304         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 305         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 306         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 307         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 308         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 309         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 310         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 311         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 312                 return 0;
 313         case PIPE_SHADER_CAP_SCALAR_ISA:
 314                 return 1;
 315         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 316         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 317                 return V3D_MAX_TEXTURE_SAMPLERS;
 318
 319         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 320                 return PIPE_MAX_SHADER_BUFFERS;
 321
 322         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 323                 if (screen->devinfo.ver < 41)
 324                         return 0;
 325                 else
 326                         return PIPE_MAX_SHADER_IMAGES;
 327
 328         case PIPE_SHADER_CAP_PREFERRED_IR:
 329                 return PIPE_SHADER_IR_NIR;
 330         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 331                 return 0;
 332         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 333                 return 32;
 334         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 335         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 336                 return 0;
 337         default:
 338                 fprintf(stderr, "unknown shader param %d\n", param);
 339                 return 0;
 340         }
 341         return 0;
 342 }
 343
 344 static boolean
 345 v3d_screen_is_format_supported(struct pipe_screen *pscreen,
 346                                enum pipe_format format,
 347                                enum pipe_texture_target target,
 348                                unsigned sample_count,
 349                                unsigned storage_sample_count,
 350                                unsigned usage)
 351 {
 352         struct v3d_screen *screen = v3d_screen(pscreen);
 353
 354         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
 355                 return false;
 356
 357         if (sample_count > 1 && sample_count != V3D_MAX_SAMPLES)
 358                 return FALSE;
 359
 360         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 361                 return FALSE;
 362         }
 363
 364         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 365                 switch (format) {
 366                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 367                 case PIPE_FORMAT_R32G32B32_FLOAT:
 368                 case PIPE_FORMAT_R32G32_FLOAT:
 369                 case PIPE_FORMAT_R32_FLOAT:
 370                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 371                 case PIPE_FORMAT_R32G32B32_SNORM:
 372                 case PIPE_FORMAT_R32G32_SNORM:
 373                 case PIPE_FORMAT_R32_SNORM:
 374                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 375                 case PIPE_FORMAT_R32G32B32_SSCALED:
 376                 case PIPE_FORMAT_R32G32_SSCALED:
 377                 case PIPE_FORMAT_R32_SSCALED:
 378                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 379                 case PIPE_FORMAT_R16G16B16_UNORM:
 380                 case PIPE_FORMAT_R16G16_UNORM:
 381                 case PIPE_FORMAT_R16_UNORM:
 382                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 383                 case PIPE_FORMAT_R16G16B16_SNORM:
 384                 case PIPE_FORMAT_R16G16_SNORM:
 385                 case PIPE_FORMAT_R16_SNORM:
 386                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 387                 case PIPE_FORMAT_R16G16B16_USCALED:
 388                 case PIPE_FORMAT_R16G16_USCALED:
 389                 case PIPE_FORMAT_R16_USCALED:
 390                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 391                 case PIPE_FORMAT_R16G16B16_SSCALED:
 392                 case PIPE_FORMAT_R16G16_SSCALED:
 393                 case PIPE_FORMAT_R16_SSCALED:
 394                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 395                 case PIPE_FORMAT_R8G8B8_UNORM:
 396                 case PIPE_FORMAT_R8G8_UNORM:
 397                 case PIPE_FORMAT_R8_UNORM:
 398                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 399                 case PIPE_FORMAT_R8G8B8_SNORM:
 400                 case PIPE_FORMAT_R8G8_SNORM:
 401                 case PIPE_FORMAT_R8_SNORM:
 402                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 403                 case PIPE_FORMAT_R8G8B8_USCALED:
 404                 case PIPE_FORMAT_R8G8_USCALED:
 405                 case PIPE_FORMAT_R8_USCALED:
 406                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 407                 case PIPE_FORMAT_R8G8B8_SSCALED:
 408                 case PIPE_FORMAT_R8G8_SSCALED:
 409                 case PIPE_FORMAT_R8_SSCALED:
 410                 case PIPE_FORMAT_R10G10B10A2_UNORM:
 411                 case PIPE_FORMAT_B10G10R10A2_UNORM:
 412                 case PIPE_FORMAT_R10G10B10A2_SNORM:
 413                 case PIPE_FORMAT_B10G10R10A2_SNORM:
 414                 case PIPE_FORMAT_R10G10B10A2_USCALED:
 415                 case PIPE_FORMAT_B10G10R10A2_USCALED:
 416                 case PIPE_FORMAT_R10G10B10A2_SSCALED:
 417                 case PIPE_FORMAT_B10G10R10A2_SSCALED:
 418                         break;
 419                 default:
 420                         return FALSE;
 421                 }
 422         }
 423
 424         /* FORMAT_NONE gets allowed for ARB_framebuffer_no_attachments's probe
 425          * of FRAMEBUFFER_MAX_SAMPLES
 426          */
 427         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 428             format != PIPE_FORMAT_NONE &&
 429             !v3d_rt_format_supported(&screen->devinfo, format)) {
 430                 return FALSE;
 431         }
 432
 433         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 434             !v3d_tex_format_supported(&screen->devinfo, format)) {
 435                 return FALSE;
 436         }
 437
 438         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 439             !(format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 440               format == PIPE_FORMAT_X8Z24_UNORM ||
 441               format == PIPE_FORMAT_Z16_UNORM ||
 442               format == PIPE_FORMAT_Z32_FLOAT ||
 443               format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)) {
 444                 return FALSE;
 445         }
 446
 447         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 448             !(format == PIPE_FORMAT_I8_UINT ||
 449               format == PIPE_FORMAT_I16_UINT ||
 450               format == PIPE_FORMAT_I32_UINT)) {
 451                 return FALSE;
 452         }
 453
 454         return TRUE;
 455 }
 456
 457 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 458
 459 static unsigned handle_hash(void *key)
 460 {
 461     return PTR_TO_UINT(key);
 462 }
 463
 464 static int handle_compare(void *key1, void *key2)
 465 {
 466     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 467 }
 468
 469 static bool
 470 v3d_get_device_info(struct v3d_screen *screen)
 471 {
 472         struct drm_v3d_get_param ident0 = {
 473                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT0,
 474         };
 475         struct drm_v3d_get_param ident1 = {
 476                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT1,
 477         };
 478         int ret;
 479
 480         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident0);
 481         if (ret != 0) {
 482                 fprintf(stderr, "Couldn't get V3D core IDENT0: %s\n",
 483                         strerror(errno));
 484                 return false;
 485         }
 486         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident1);
 487         if (ret != 0) {
 488                 fprintf(stderr, "Couldn't get V3D core IDENT1: %s\n",
 489                         strerror(errno));
 490                 return false;
 491         }
 492
 493         uint32_t major = (ident0.value >> 24) & 0xff;
 494         uint32_t minor = (ident1.value >> 0) & 0xf;
 495         screen->devinfo.ver = major * 10 + minor;
 496
 497         screen->devinfo.vpm_size = (ident1.value >> 28 & 0xf) * 8192;
 498
 499         switch (screen->devinfo.ver) {
 500         case 33:
 501         case 41:
 502         case 42:
 503                 break;
 504         default:
 505                 fprintf(stderr,
 506                         "V3D %d.%d not supported by this version of Mesa.\n",
 507                         screen->devinfo.ver / 10,
 508                         screen->devinfo.ver % 10);
 509                 return false;
 510         }
 511
 512         return true;
 513 }
 514
 515 static const void *
 516 v3d_screen_get_compiler_options(struct pipe_screen *pscreen,
 517                                 enum pipe_shader_ir ir, unsigned shader)
 518 {
 519         return &v3d_nir_options;
 520 }
 521
 522 static void
 523 v3d_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 524                                   enum pipe_format format, int max,
 525                                   uint64_t *modifiers,
 526                                   unsigned int *external_only,
 527                                   int *count)
 528 {
 529         int i;
 530         uint64_t available_modifiers[] = {
 531                 DRM_FORMAT_MOD_BROADCOM_UIF,
 532                 DRM_FORMAT_MOD_LINEAR,
 533         };
 534         int num_modifiers = ARRAY_SIZE(available_modifiers);
 535
 536         if (!modifiers) {
 537                 *count = num_modifiers;
 538                 return;
 539         }
 540
 541         *count = MIN2(max, num_modifiers);
 542         for (i = 0; i < *count; i++) {
 543                 modifiers[i] = available_modifiers[i];
 544                 if (external_only)
 545                         external_only[i] = false;
 546        }
 547 }
 548
 549 struct pipe_screen *
 550 v3d_screen_create(int fd, struct renderonly *ro)
 551 {
 552         struct v3d_screen *screen = rzalloc(NULL, struct v3d_screen);
 553         struct pipe_screen *pscreen;
 554
 555         pscreen = &screen->base;
 556
 557         pscreen->destroy = v3d_screen_destroy;
 558         pscreen->get_param = v3d_screen_get_param;
 559         pscreen->get_paramf = v3d_screen_get_paramf;
 560         pscreen->get_shader_param = v3d_screen_get_shader_param;
 561         pscreen->context_create = v3d_context_create;
 562         pscreen->is_format_supported = v3d_screen_is_format_supported;
 563
 564         screen->fd = fd;
 565         if (ro) {
 566                 screen->ro = renderonly_dup(ro);
 567                 if (!screen->ro) {
 568                         fprintf(stderr, "Failed to dup renderonly object\n");
 569                         ralloc_free(screen);
 570                         return NULL;
 571                 }
 572         }
 573         list_inithead(&screen->bo_cache.time_list);
 574         (void)mtx_init(&screen->bo_handles_mutex, mtx_plain);
 575         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 576
 577 #if defined(USE_V3D_SIMULATOR)
 578         v3d_simulator_init(screen);
 579 #endif
 580
 581         if (!v3d_get_device_info(screen))
 582                 goto fail;
 583
 584         slab_create_parent(&screen->transfer_pool, sizeof(struct v3d_transfer), 16);
 585
 586         v3d_fence_init(screen);
 587
 588         v3d_process_debug_variable();
 589
 590         v3d_resource_screen_init(pscreen);
 591
 592         screen->compiler = v3d_compiler_init(&screen->devinfo);
 593
 594         pscreen->get_name = v3d_screen_get_name;
 595         pscreen->get_vendor = v3d_screen_get_vendor;
 596         pscreen->get_device_vendor = v3d_screen_get_vendor;
 597         pscreen->get_compiler_options = v3d_screen_get_compiler_options;
 598         pscreen->query_dmabuf_modifiers = v3d_screen_query_dmabuf_modifiers;
 599
 600         return pscreen;
 601
 602 fail:
 603         close(fd);
 604         ralloc_free(pscreen);
 605         return NULL;
 606 }