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 "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/u_hash_table.h"
  34 #include "util/ralloc.h"
  35
  36 #include <xf86drm.h>
  37 #include "v3d_screen.h"
  38 #include "v3d_context.h"
  39 #include "v3d_resource.h"
  40 #include "compiler/v3d_compiler.h"
  41
  42 static const char *
  43 v3d_screen_get_name(struct pipe_screen *pscreen)
  44 {
  45         struct v3d_screen *screen = v3d_screen(pscreen);
  46
  47         if (!screen->name) {
  48                 screen->name = ralloc_asprintf(screen,
  49                                                "V3D %d.%d",
  50                                                screen->devinfo.ver / 10,
  51                                                screen->devinfo.ver % 10);
  52         }
  53
  54         return screen->name;
  55 }
  56
  57 static const char *
  58 v3d_screen_get_vendor(struct pipe_screen *pscreen)
  59 {
  60         return "Broadcom";
  61 }
  62
  63 static void
  64 v3d_screen_destroy(struct pipe_screen *pscreen)
  65 {
  66         struct v3d_screen *screen = v3d_screen(pscreen);
  67
  68         util_hash_table_destroy(screen->bo_handles);
  69         v3d_bufmgr_destroy(pscreen);
  70         slab_destroy_parent(&screen->transfer_pool);
  71
  72         if (using_v3d_simulator)
  73                 v3d_simulator_destroy(screen);
  74
  75         v3d_compiler_free(screen->compiler);
  76
  77         close(screen->fd);
  78         ralloc_free(pscreen);
  79 }
  80
  81 static int
  82 v3d_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  83 {
  84         struct v3d_screen *screen = v3d_screen(pscreen);
  85
  86         switch (param) {
  87                 /* Supported features (boolean caps). */
  88         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
  89         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  90         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
  91         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  92         case PIPE_CAP_NPOT_TEXTURES:
  93         case PIPE_CAP_SHAREABLE_SHADERS:
  94         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  95         case PIPE_CAP_TEXTURE_MULTISAMPLE:
  96         case PIPE_CAP_TEXTURE_SWIZZLE:
  97         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
  98         case PIPE_CAP_START_INSTANCE:
  99         case PIPE_CAP_TGSI_INSTANCEID:
 100         case PIPE_CAP_SM3:
 101         case PIPE_CAP_TEXTURE_QUERY_LOD:
 102         case PIPE_CAP_PRIMITIVE_RESTART:
 103         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 104         case PIPE_CAP_OCCLUSION_QUERY:
 105         case PIPE_CAP_POINT_SPRITE:
 106         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 107         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 108         case PIPE_CAP_COMPUTE:
 109         case PIPE_CAP_DRAW_INDIRECT:
 110         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 111         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 112         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 113                 return 1;
 114
 115         case PIPE_CAP_INDEP_BLEND_ENABLE:
 116                 return screen->devinfo.ver >= 40;
 117
 118         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 119                 return 256;
 120
 121         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 122                 return 4;
 123
 124         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 125                 return 400;
 126
 127         case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 128                 return 140;
 129
 130         case PIPE_CAP_MAX_VIEWPORTS:
 131                 return 1;
 132
 133         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 134                 return 1;
 135         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 136                 return 0;
 137         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 138                 if (screen->devinfo.ver >= 40)
 139                         return 0;
 140                 else
 141                         return 1;
 142         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 143                 if (screen->devinfo.ver >= 40)
 144                         return 1;
 145                 else
 146                         return 0;
 147
 148         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 149         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 150         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 151                 return 1;
 152
 153
 154                 /* Stream output. */
 155         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 156                 return 4;
 157         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 158         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 159                 return 64;
 160
 161         case PIPE_CAP_MIN_TEXEL_OFFSET:
 162         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 163                 return -8;
 164         case PIPE_CAP_MAX_TEXEL_OFFSET:
 165         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 166                 return 7;
 167
 168                 /* Unsupported features. */
 169         case PIPE_CAP_ANISOTROPIC_FILTER:
 170         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 171         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 172         case PIPE_CAP_CUBE_MAP_ARRAY:
 173         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 174         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 175         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 176         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 177         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 178         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 179         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 180         case PIPE_CAP_TGSI_TEXCOORD:
 181         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 182         case PIPE_CAP_CONDITIONAL_RENDER:
 183         case PIPE_CAP_TEXTURE_BARRIER:
 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_CAN_COMPACT_CONSTANTS:
 188         case PIPE_CAP_USER_VERTEX_BUFFERS:
 189         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 190         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 191         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 192         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 193         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 194         case PIPE_CAP_TEXTURE_GATHER_SM5:
 195         case PIPE_CAP_FAKE_SW_MSAA:
 196         case PIPE_CAP_SAMPLE_SHADING:
 197         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 198         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 199         case PIPE_CAP_MAX_VERTEX_STREAMS:
 200         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 201         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 202         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 203         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 204         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 205         case PIPE_CAP_CLIP_HALFZ:
 206         case PIPE_CAP_VERTEXID_NOBASE:
 207         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 208         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 209         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 210         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 211         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 212         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 213         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 214         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 215         case PIPE_CAP_TGSI_TXQS:
 216         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 217         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 218         case PIPE_CAP_CLEAR_TEXTURE:
 219         case PIPE_CAP_DRAW_PARAMETERS:
 220         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 221         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 222         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 223         case PIPE_CAP_INVALIDATE_BUFFER:
 224         case PIPE_CAP_GENERATE_MIPMAP:
 225         case PIPE_CAP_STRING_MARKER:
 226         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 227         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 228         case PIPE_CAP_QUERY_MEMORY_INFO:
 229         case PIPE_CAP_PCI_GROUP:
 230         case PIPE_CAP_PCI_BUS:
 231         case PIPE_CAP_PCI_DEVICE:
 232         case PIPE_CAP_PCI_FUNCTION:
 233         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 234         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 235         case PIPE_CAP_CULL_DISTANCE:
 236         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 237         case PIPE_CAP_TGSI_VOTE:
 238         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 239         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 240         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 241         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 242         case PIPE_CAP_TGSI_FS_FBFETCH:
 243         case PIPE_CAP_INT64:
 244         case PIPE_CAP_INT64_DIVMOD:
 245         case PIPE_CAP_DOUBLES:
 246         case PIPE_CAP_BINDLESS_TEXTURE:
 247         case PIPE_CAP_POST_DEPTH_COVERAGE:
 248         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 249         case PIPE_CAP_TGSI_BALLOT:
 250         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 251         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 252         case PIPE_CAP_TGSI_CLOCK:
 253         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 254         case PIPE_CAP_NATIVE_FENCE_FD:
 255         case PIPE_CAP_FENCE_SIGNAL:
 256         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 257         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 258         case PIPE_CAP_QUERY_SO_OVERFLOW:
 259         case PIPE_CAP_MEMOBJ:
 260         case PIPE_CAP_LOAD_CONSTBUF:
 261         case PIPE_CAP_TILE_RASTER_ORDER:
 262         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 263         case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 264         case PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS:
 265         case PIPE_CAP_CONTEXT_PRIORITY_MASK:
 266         case PIPE_CAP_CONSTBUF0_FLAGS:
 267         case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
 268         case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
 269         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
 270         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
 271         case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
 272         case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
 273         case PIPE_CAP_PACKED_UNIFORMS:
 274         case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
 275                 return 0;
 276
 277                 /* Geometry shader output, unsupported. */
 278         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 279         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 280         case PIPE_CAP_MAX_GS_INVOCATIONS:
 281                 return 0;
 282
 283                 /* Texturing. */
 284         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 285         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 286         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 287                 return VC5_MAX_MIP_LEVELS;
 288         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 289                 return 2048;
 290
 291                 /* Render targets. */
 292         case PIPE_CAP_MAX_RENDER_TARGETS:
 293                 return 4;
 294
 295                 /* Queries. */
 296         case PIPE_CAP_QUERY_TIME_ELAPSED:
 297         case PIPE_CAP_QUERY_TIMESTAMP:
 298                 return 0;
 299
 300         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 301                 return 2048;
 302
 303         case PIPE_CAP_ENDIANNESS:
 304                 return PIPE_ENDIAN_LITTLE;
 305
 306         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 307                 return 64;
 308
 309         case PIPE_CAP_VENDOR_ID:
 310                 return 0x14E4;
 311         case PIPE_CAP_DEVICE_ID:
 312                 return 0xFFFFFFFF;
 313         case PIPE_CAP_ACCELERATED:
 314                 return 1;
 315         case PIPE_CAP_VIDEO_MEMORY: {
 316                 uint64_t system_memory;
 317
 318                 if (!os_get_total_physical_memory(&system_memory))
 319                         return 0;
 320
 321                 return (int)(system_memory >> 20);
 322         }
 323         case PIPE_CAP_UMA:
 324                 return 1;
 325
 326         default:
 327                 fprintf(stderr, "unknown param %d\n", param);
 328                 return 0;
 329         }
 330 }
 331
 332 static float
 333 v3d_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 334 {
 335         switch (param) {
 336         case PIPE_CAPF_MAX_LINE_WIDTH:
 337         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 338                 return 32;
 339
 340         case PIPE_CAPF_MAX_POINT_WIDTH:
 341         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 342                 return 512.0f;
 343
 344         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 345                 return 0.0f;
 346         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 347                 return 16.0f;
 348
 349         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 350         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 351         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 352                 return 0.0f;
 353         default:
 354                 fprintf(stderr, "unknown paramf %d\n", param);
 355                 return 0;
 356         }
 357 }
 358
 359 static int
 360 v3d_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 361                            enum pipe_shader_cap param)
 362 {
 363         if (shader != PIPE_SHADER_VERTEX &&
 364             shader != PIPE_SHADER_FRAGMENT) {
 365                 return 0;
 366         }
 367
 368         /* this is probably not totally correct.. but it's a start: */
 369         switch (param) {
 370         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 371         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 372         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 373         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 374                 return 16384;
 375
 376         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 377                 return UINT_MAX;
 378
 379         case PIPE_SHADER_CAP_MAX_INPUTS:
 380                 if (shader == PIPE_SHADER_FRAGMENT)
 381                         return VC5_MAX_FS_INPUTS / 4;
 382                 else
 383                         return VC5_MAX_ATTRIBUTES;
 384         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 385                 if (shader == PIPE_SHADER_FRAGMENT)
 386                         return 4;
 387                 else
 388                         return VC5_MAX_FS_INPUTS / 4;
 389         case PIPE_SHADER_CAP_MAX_TEMPS:
 390                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 391         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 392                 return 16 * 1024 * sizeof(float);
 393         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 394                 return 16;
 395         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 396                 return 0;
 397         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 398         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 399         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 400                 return 0;
 401         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 402                 return 1;
 403         case PIPE_SHADER_CAP_SUBROUTINES:
 404                 return 0;
 405         case PIPE_SHADER_CAP_INTEGERS:
 406                 return 1;
 407         case PIPE_SHADER_CAP_FP16:
 408         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 409         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 410         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 411         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 412         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 413         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 414         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 415         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 416                 return 0;
 417         case PIPE_SHADER_CAP_SCALAR_ISA:
 418                 return 1;
 419         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 420         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 421         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 422         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 423                 return VC5_MAX_TEXTURE_SAMPLERS;
 424         case PIPE_SHADER_CAP_PREFERRED_IR:
 425                 return PIPE_SHADER_IR_NIR;
 426         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 427                 return 0;
 428         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 429                 return 32;
 430         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 431         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 432                 return 0;
 433         default:
 434                 fprintf(stderr, "unknown shader param %d\n", param);
 435                 return 0;
 436         }
 437         return 0;
 438 }
 439
 440 static boolean
 441 v3d_screen_is_format_supported(struct pipe_screen *pscreen,
 442                                enum pipe_format format,
 443                                enum pipe_texture_target target,
 444                                unsigned sample_count,
 445                                unsigned storage_sample_count,
 446                                unsigned usage)
 447 {
 448         struct v3d_screen *screen = v3d_screen(pscreen);
 449
 450         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
 451                 return false;
 452
 453         if (sample_count > 1 && sample_count != VC5_MAX_SAMPLES)
 454                 return FALSE;
 455
 456         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 457                 return FALSE;
 458         }
 459
 460         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 461                 switch (format) {
 462                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 463                 case PIPE_FORMAT_R32G32B32_FLOAT:
 464                 case PIPE_FORMAT_R32G32_FLOAT:
 465                 case PIPE_FORMAT_R32_FLOAT:
 466                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 467                 case PIPE_FORMAT_R32G32B32_SNORM:
 468                 case PIPE_FORMAT_R32G32_SNORM:
 469                 case PIPE_FORMAT_R32_SNORM:
 470                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 471                 case PIPE_FORMAT_R32G32B32_SSCALED:
 472                 case PIPE_FORMAT_R32G32_SSCALED:
 473                 case PIPE_FORMAT_R32_SSCALED:
 474                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 475                 case PIPE_FORMAT_R16G16B16_UNORM:
 476                 case PIPE_FORMAT_R16G16_UNORM:
 477                 case PIPE_FORMAT_R16_UNORM:
 478                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 479                 case PIPE_FORMAT_R16G16B16_SNORM:
 480                 case PIPE_FORMAT_R16G16_SNORM:
 481                 case PIPE_FORMAT_R16_SNORM:
 482                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 483                 case PIPE_FORMAT_R16G16B16_USCALED:
 484                 case PIPE_FORMAT_R16G16_USCALED:
 485                 case PIPE_FORMAT_R16_USCALED:
 486                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 487                 case PIPE_FORMAT_R16G16B16_SSCALED:
 488                 case PIPE_FORMAT_R16G16_SSCALED:
 489                 case PIPE_FORMAT_R16_SSCALED:
 490                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 491                 case PIPE_FORMAT_R8G8B8_UNORM:
 492                 case PIPE_FORMAT_R8G8_UNORM:
 493                 case PIPE_FORMAT_R8_UNORM:
 494                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 495                 case PIPE_FORMAT_R8G8B8_SNORM:
 496                 case PIPE_FORMAT_R8G8_SNORM:
 497                 case PIPE_FORMAT_R8_SNORM:
 498                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 499                 case PIPE_FORMAT_R8G8B8_USCALED:
 500                 case PIPE_FORMAT_R8G8_USCALED:
 501                 case PIPE_FORMAT_R8_USCALED:
 502                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 503                 case PIPE_FORMAT_R8G8B8_SSCALED:
 504                 case PIPE_FORMAT_R8G8_SSCALED:
 505                 case PIPE_FORMAT_R8_SSCALED:
 506                 case PIPE_FORMAT_R10G10B10A2_UNORM:
 507                 case PIPE_FORMAT_B10G10R10A2_UNORM:
 508                 case PIPE_FORMAT_R10G10B10A2_SNORM:
 509                 case PIPE_FORMAT_B10G10R10A2_SNORM:
 510                 case PIPE_FORMAT_R10G10B10A2_USCALED:
 511                 case PIPE_FORMAT_B10G10R10A2_USCALED:
 512                 case PIPE_FORMAT_R10G10B10A2_SSCALED:
 513                 case PIPE_FORMAT_B10G10R10A2_SSCALED:
 514                         break;
 515                 default:
 516                         return FALSE;
 517                 }
 518         }
 519
 520         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 521             !v3d_rt_format_supported(&screen->devinfo, format)) {
 522                 return FALSE;
 523         }
 524
 525         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 526             !v3d_tex_format_supported(&screen->devinfo, format)) {
 527                 return FALSE;
 528         }
 529
 530         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 531             !(format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 532               format == PIPE_FORMAT_X8Z24_UNORM ||
 533               format == PIPE_FORMAT_Z16_UNORM ||
 534               format == PIPE_FORMAT_Z32_FLOAT ||
 535               format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)) {
 536                 return FALSE;
 537         }
 538
 539         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 540             !(format == PIPE_FORMAT_I8_UINT ||
 541               format == PIPE_FORMAT_I16_UINT ||
 542               format == PIPE_FORMAT_I32_UINT)) {
 543                 return FALSE;
 544         }
 545
 546         return TRUE;
 547 }
 548
 549 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 550
 551 static unsigned handle_hash(void *key)
 552 {
 553     return PTR_TO_UINT(key);
 554 }
 555
 556 static int handle_compare(void *key1, void *key2)
 557 {
 558     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 559 }
 560
 561 static bool
 562 v3d_get_device_info(struct v3d_screen *screen)
 563 {
 564         struct drm_v3d_get_param ident0 = {
 565                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT0,
 566         };
 567         struct drm_v3d_get_param ident1 = {
 568                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT1,
 569         };
 570         int ret;
 571
 572         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident0);
 573         if (ret != 0) {
 574                 fprintf(stderr, "Couldn't get V3D core IDENT0: %s\n",
 575                         strerror(errno));
 576                 return false;
 577         }
 578         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident1);
 579         if (ret != 0) {
 580                 fprintf(stderr, "Couldn't get V3D core IDENT1: %s\n",
 581                         strerror(errno));
 582                 return false;
 583         }
 584
 585         uint32_t major = (ident0.value >> 24) & 0xff;
 586         uint32_t minor = (ident1.value >> 0) & 0xf;
 587         screen->devinfo.ver = major * 10 + minor;
 588
 589         screen->devinfo.vpm_size = (ident1.value >> 28 & 0xf) * 1024;
 590
 591         switch (screen->devinfo.ver) {
 592         case 33:
 593         case 41:
 594         case 42:
 595                 break;
 596         default:
 597                 fprintf(stderr,
 598                         "V3D %d.%d not supported by this version of Mesa.\n",
 599                         screen->devinfo.ver / 10,
 600                         screen->devinfo.ver % 10);
 601                 return false;
 602         }
 603
 604         return true;
 605 }
 606
 607 static const void *
 608 v3d_screen_get_compiler_options(struct pipe_screen *pscreen,
 609                                 enum pipe_shader_ir ir, unsigned shader)
 610 {
 611         return &v3d_nir_options;
 612 }
 613
 614 struct pipe_screen *
 615 v3d_screen_create(int fd)
 616 {
 617         struct v3d_screen *screen = rzalloc(NULL, struct v3d_screen);
 618         struct pipe_screen *pscreen;
 619
 620         pscreen = &screen->base;
 621
 622         pscreen->destroy = v3d_screen_destroy;
 623         pscreen->get_param = v3d_screen_get_param;
 624         pscreen->get_paramf = v3d_screen_get_paramf;
 625         pscreen->get_shader_param = v3d_screen_get_shader_param;
 626         pscreen->context_create = v3d_context_create;
 627         pscreen->is_format_supported = v3d_screen_is_format_supported;
 628
 629         screen->fd = fd;
 630         list_inithead(&screen->bo_cache.time_list);
 631         (void)mtx_init(&screen->bo_handles_mutex, mtx_plain);
 632         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 633
 634 #if defined(USE_V3D_SIMULATOR)
 635         v3d_simulator_init(screen);
 636 #endif
 637
 638         if (!v3d_get_device_info(screen))
 639                 goto fail;
 640
 641         slab_create_parent(&screen->transfer_pool, sizeof(struct v3d_transfer), 16);
 642
 643         v3d_fence_init(screen);
 644
 645         v3d_process_debug_variable();
 646
 647         v3d_resource_screen_init(pscreen);
 648
 649         screen->compiler = v3d_compiler_init(&screen->devinfo);
 650
 651         pscreen->get_name = v3d_screen_get_name;
 652         pscreen->get_vendor = v3d_screen_get_vendor;
 653         pscreen->get_device_vendor = v3d_screen_get_vendor;
 654         pscreen->get_compiler_options = v3d_screen_get_compiler_options;
 655
 656         return pscreen;
 657
 658 fail:
 659         close(fd);
 660         ralloc_free(pscreen);
 661         return NULL;
 662 }