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                 return 0;
 281
 282                 /* Texturing. */
 283         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 284         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 285         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 286                 return VC5_MAX_MIP_LEVELS;
 287         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 288                 return 2048;
 289
 290                 /* Render targets. */
 291         case PIPE_CAP_MAX_RENDER_TARGETS:
 292                 return 4;
 293
 294                 /* Queries. */
 295         case PIPE_CAP_QUERY_TIME_ELAPSED:
 296         case PIPE_CAP_QUERY_TIMESTAMP:
 297                 return 0;
 298
 299         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 300                 return 2048;
 301
 302         case PIPE_CAP_ENDIANNESS:
 303                 return PIPE_ENDIAN_LITTLE;
 304
 305         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 306                 return 64;
 307
 308         case PIPE_CAP_VENDOR_ID:
 309                 return 0x14E4;
 310         case PIPE_CAP_DEVICE_ID:
 311                 return 0xFFFFFFFF;
 312         case PIPE_CAP_ACCELERATED:
 313                 return 1;
 314         case PIPE_CAP_VIDEO_MEMORY: {
 315                 uint64_t system_memory;
 316
 317                 if (!os_get_total_physical_memory(&system_memory))
 318                         return 0;
 319
 320                 return (int)(system_memory >> 20);
 321         }
 322         case PIPE_CAP_UMA:
 323                 return 1;
 324
 325         default:
 326                 fprintf(stderr, "unknown param %d\n", param);
 327                 return 0;
 328         }
 329 }
 330
 331 static float
 332 v3d_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 333 {
 334         switch (param) {
 335         case PIPE_CAPF_MAX_LINE_WIDTH:
 336         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 337                 return 32;
 338
 339         case PIPE_CAPF_MAX_POINT_WIDTH:
 340         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 341                 return 512.0f;
 342
 343         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 344                 return 0.0f;
 345         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 346                 return 16.0f;
 347
 348         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 349         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 350         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 351                 return 0.0f;
 352         default:
 353                 fprintf(stderr, "unknown paramf %d\n", param);
 354                 return 0;
 355         }
 356 }
 357
 358 static int
 359 v3d_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 360                            enum pipe_shader_cap param)
 361 {
 362         if (shader != PIPE_SHADER_VERTEX &&
 363             shader != PIPE_SHADER_FRAGMENT) {
 364                 return 0;
 365         }
 366
 367         /* this is probably not totally correct.. but it's a start: */
 368         switch (param) {
 369         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 370         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 371         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 372         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 373                 return 16384;
 374
 375         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 376                 return UINT_MAX;
 377
 378         case PIPE_SHADER_CAP_MAX_INPUTS:
 379                 if (shader == PIPE_SHADER_FRAGMENT)
 380                         return VC5_MAX_FS_INPUTS / 4;
 381                 else
 382                         return VC5_MAX_ATTRIBUTES;
 383         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 384                 if (shader == PIPE_SHADER_FRAGMENT)
 385                         return 4;
 386                 else
 387                         return VC5_MAX_FS_INPUTS / 4;
 388         case PIPE_SHADER_CAP_MAX_TEMPS:
 389                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 390         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 391                 return 16 * 1024 * sizeof(float);
 392         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 393                 return 16;
 394         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 395                 return 0;
 396         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 397         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 398         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 399                 return 0;
 400         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 401                 return 1;
 402         case PIPE_SHADER_CAP_SUBROUTINES:
 403                 return 0;
 404         case PIPE_SHADER_CAP_INTEGERS:
 405                 return 1;
 406         case PIPE_SHADER_CAP_FP16:
 407         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 408         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 409         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 410         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 411         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 412         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 413         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 414         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 415                 return 0;
 416         case PIPE_SHADER_CAP_SCALAR_ISA:
 417                 return 1;
 418         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 419         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 420         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 421         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 422                 return VC5_MAX_TEXTURE_SAMPLERS;
 423         case PIPE_SHADER_CAP_PREFERRED_IR:
 424                 return PIPE_SHADER_IR_NIR;
 425         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 426                 return 0;
 427         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 428                 return 32;
 429         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 430         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 431                 return 0;
 432         default:
 433                 fprintf(stderr, "unknown shader param %d\n", param);
 434                 return 0;
 435         }
 436         return 0;
 437 }
 438
 439 static boolean
 440 v3d_screen_is_format_supported(struct pipe_screen *pscreen,
 441                                enum pipe_format format,
 442                                enum pipe_texture_target target,
 443                                unsigned sample_count,
 444                                unsigned storage_sample_count,
 445                                unsigned usage)
 446 {
 447         struct v3d_screen *screen = v3d_screen(pscreen);
 448
 449         if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
 450                 return false;
 451
 452         if (sample_count > 1 && sample_count != VC5_MAX_SAMPLES)
 453                 return FALSE;
 454
 455         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 456                 return FALSE;
 457         }
 458
 459         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 460                 switch (format) {
 461                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 462                 case PIPE_FORMAT_R32G32B32_FLOAT:
 463                 case PIPE_FORMAT_R32G32_FLOAT:
 464                 case PIPE_FORMAT_R32_FLOAT:
 465                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 466                 case PIPE_FORMAT_R32G32B32_SNORM:
 467                 case PIPE_FORMAT_R32G32_SNORM:
 468                 case PIPE_FORMAT_R32_SNORM:
 469                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 470                 case PIPE_FORMAT_R32G32B32_SSCALED:
 471                 case PIPE_FORMAT_R32G32_SSCALED:
 472                 case PIPE_FORMAT_R32_SSCALED:
 473                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 474                 case PIPE_FORMAT_R16G16B16_UNORM:
 475                 case PIPE_FORMAT_R16G16_UNORM:
 476                 case PIPE_FORMAT_R16_UNORM:
 477                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 478                 case PIPE_FORMAT_R16G16B16_SNORM:
 479                 case PIPE_FORMAT_R16G16_SNORM:
 480                 case PIPE_FORMAT_R16_SNORM:
 481                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 482                 case PIPE_FORMAT_R16G16B16_USCALED:
 483                 case PIPE_FORMAT_R16G16_USCALED:
 484                 case PIPE_FORMAT_R16_USCALED:
 485                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 486                 case PIPE_FORMAT_R16G16B16_SSCALED:
 487                 case PIPE_FORMAT_R16G16_SSCALED:
 488                 case PIPE_FORMAT_R16_SSCALED:
 489                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 490                 case PIPE_FORMAT_R8G8B8_UNORM:
 491                 case PIPE_FORMAT_R8G8_UNORM:
 492                 case PIPE_FORMAT_R8_UNORM:
 493                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 494                 case PIPE_FORMAT_R8G8B8_SNORM:
 495                 case PIPE_FORMAT_R8G8_SNORM:
 496                 case PIPE_FORMAT_R8_SNORM:
 497                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 498                 case PIPE_FORMAT_R8G8B8_USCALED:
 499                 case PIPE_FORMAT_R8G8_USCALED:
 500                 case PIPE_FORMAT_R8_USCALED:
 501                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 502                 case PIPE_FORMAT_R8G8B8_SSCALED:
 503                 case PIPE_FORMAT_R8G8_SSCALED:
 504                 case PIPE_FORMAT_R8_SSCALED:
 505                 case PIPE_FORMAT_R10G10B10A2_UNORM:
 506                 case PIPE_FORMAT_B10G10R10A2_UNORM:
 507                 case PIPE_FORMAT_R10G10B10A2_SNORM:
 508                 case PIPE_FORMAT_B10G10R10A2_SNORM:
 509                 case PIPE_FORMAT_R10G10B10A2_USCALED:
 510                 case PIPE_FORMAT_B10G10R10A2_USCALED:
 511                 case PIPE_FORMAT_R10G10B10A2_SSCALED:
 512                 case PIPE_FORMAT_B10G10R10A2_SSCALED:
 513                         break;
 514                 default:
 515                         return FALSE;
 516                 }
 517         }
 518
 519         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 520             !v3d_rt_format_supported(&screen->devinfo, format)) {
 521                 return FALSE;
 522         }
 523
 524         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 525             !v3d_tex_format_supported(&screen->devinfo, format)) {
 526                 return FALSE;
 527         }
 528
 529         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 530             !(format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 531               format == PIPE_FORMAT_X8Z24_UNORM ||
 532               format == PIPE_FORMAT_Z16_UNORM ||
 533               format == PIPE_FORMAT_Z32_FLOAT ||
 534               format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)) {
 535                 return FALSE;
 536         }
 537
 538         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 539             !(format == PIPE_FORMAT_I8_UINT ||
 540               format == PIPE_FORMAT_I16_UINT ||
 541               format == PIPE_FORMAT_I32_UINT)) {
 542                 return FALSE;
 543         }
 544
 545         return TRUE;
 546 }
 547
 548 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 549
 550 static unsigned handle_hash(void *key)
 551 {
 552     return PTR_TO_UINT(key);
 553 }
 554
 555 static int handle_compare(void *key1, void *key2)
 556 {
 557     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 558 }
 559
 560 static bool
 561 v3d_get_device_info(struct v3d_screen *screen)
 562 {
 563         struct drm_v3d_get_param ident0 = {
 564                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT0,
 565         };
 566         struct drm_v3d_get_param ident1 = {
 567                 .param = DRM_V3D_PARAM_V3D_CORE0_IDENT1,
 568         };
 569         int ret;
 570
 571         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident0);
 572         if (ret != 0) {
 573                 fprintf(stderr, "Couldn't get V3D core IDENT0: %s\n",
 574                         strerror(errno));
 575                 return false;
 576         }
 577         ret = v3d_ioctl(screen->fd, DRM_IOCTL_V3D_GET_PARAM, &ident1);
 578         if (ret != 0) {
 579                 fprintf(stderr, "Couldn't get V3D core IDENT1: %s\n",
 580                         strerror(errno));
 581                 return false;
 582         }
 583
 584         uint32_t major = (ident0.value >> 24) & 0xff;
 585         uint32_t minor = (ident1.value >> 0) & 0xf;
 586         screen->devinfo.ver = major * 10 + minor;
 587
 588         screen->devinfo.vpm_size = (ident1.value >> 28 & 0xf) * 1024;
 589
 590         switch (screen->devinfo.ver) {
 591         case 33:
 592         case 41:
 593         case 42:
 594                 break;
 595         default:
 596                 fprintf(stderr,
 597                         "V3D %d.%d not supported by this version of Mesa.\n",
 598                         screen->devinfo.ver / 10,
 599                         screen->devinfo.ver % 10);
 600                 return false;
 601         }
 602
 603         return true;
 604 }
 605
 606 static const void *
 607 v3d_screen_get_compiler_options(struct pipe_screen *pscreen,
 608                                 enum pipe_shader_ir ir, unsigned shader)
 609 {
 610         return &v3d_nir_options;
 611 }
 612
 613 struct pipe_screen *
 614 v3d_screen_create(int fd)
 615 {
 616         struct v3d_screen *screen = rzalloc(NULL, struct v3d_screen);
 617         struct pipe_screen *pscreen;
 618
 619         pscreen = &screen->base;
 620
 621         pscreen->destroy = v3d_screen_destroy;
 622         pscreen->get_param = v3d_screen_get_param;
 623         pscreen->get_paramf = v3d_screen_get_paramf;
 624         pscreen->get_shader_param = v3d_screen_get_shader_param;
 625         pscreen->context_create = v3d_context_create;
 626         pscreen->is_format_supported = v3d_screen_is_format_supported;
 627
 628         screen->fd = fd;
 629         list_inithead(&screen->bo_cache.time_list);
 630         (void)mtx_init(&screen->bo_handles_mutex, mtx_plain);
 631         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 632
 633 #if defined(USE_V3D_SIMULATOR)
 634         v3d_simulator_init(screen);
 635 #endif
 636
 637         if (!v3d_get_device_info(screen))
 638                 goto fail;
 639
 640         slab_create_parent(&screen->transfer_pool, sizeof(struct v3d_transfer), 16);
 641
 642         v3d_fence_init(screen);
 643
 644         v3d_process_debug_variable();
 645
 646         v3d_resource_screen_init(pscreen);
 647
 648         screen->compiler = v3d_compiler_init(&screen->devinfo);
 649
 650         pscreen->get_name = v3d_screen_get_name;
 651         pscreen->get_vendor = v3d_screen_get_vendor;
 652         pscreen->get_device_vendor = v3d_screen_get_vendor;
 653         pscreen->get_compiler_options = v3d_screen_get_compiler_options;
 654
 655         return pscreen;
 656
 657 fail:
 658         close(fd);
 659         ralloc_free(pscreen);
 660         return NULL;
 661 }