src/gallium/drivers/vc4/vc4_screen.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include "os/os_misc.h"
  26 #include "pipe/p_defines.h"
  27 #include "pipe/p_screen.h"
  28 #include "pipe/p_state.h"
  29
  30 #include "util/u_cpu_detect.h"
  31 #include "util/u_debug.h"
  32 #include "util/u_memory.h"
  33 #include "util/u_format.h"
  34 #include "util/u_hash_table.h"
  35 #include "util/ralloc.h"
  36
  37 #include <xf86drm.h>
  38 #include "drm_fourcc.h"
  39 #include "vc4_drm.h"
  40 #include "vc4_screen.h"
  41 #include "vc4_context.h"
  42 #include "vc4_resource.h"
  43
  44 static const struct debug_named_value debug_options[] = {
  45         { "cl",       VC4_DEBUG_CL,
  46           "Dump command list during creation" },
  47         { "surf",       VC4_DEBUG_SURFACE,
  48           "Dump surface layouts" },
  49         { "qpu",      VC4_DEBUG_QPU,
  50           "Dump generated QPU instructions" },
  51         { "qir",      VC4_DEBUG_QIR,
  52           "Dump QPU IR during program compile" },
  53         { "nir",      VC4_DEBUG_NIR,
  54           "Dump NIR during program compile" },
  55         { "tgsi",     VC4_DEBUG_TGSI,
  56           "Dump TGSI during program compile" },
  57         { "shaderdb", VC4_DEBUG_SHADERDB,
  58           "Dump program compile information for shader-db analysis" },
  59         { "perf",     VC4_DEBUG_PERF,
  60           "Print during performance-related events" },
  61         { "norast",   VC4_DEBUG_NORAST,
  62           "Skip actual hardware execution of commands" },
  63         { "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
  64           "Flush after each draw call" },
  65         { "always_sync", VC4_DEBUG_ALWAYS_SYNC,
  66           "Wait for finish after each flush" },
  67 #ifdef USE_VC4_SIMULATOR
  68         { "dump", VC4_DEBUG_DUMP,
  69           "Write a GPU command stream trace file" },
  70 #endif
  71         { NULL }
  72 };
  73
  74 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  75 uint32_t vc4_debug;
  76
  77 static const char *
  78 vc4_screen_get_name(struct pipe_screen *pscreen)
  79 {
  80         struct vc4_screen *screen = vc4_screen(pscreen);
  81
  82         if (!screen->name) {
  83                 screen->name = ralloc_asprintf(screen,
  84                                                "VC4 V3D %d.%d",
  85                                                screen->v3d_ver / 10,
  86                                                screen->v3d_ver % 10);
  87         }
  88
  89         return screen->name;
  90 }
  91
  92 static const char *
  93 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  94 {
  95         return "Broadcom";
  96 }
  97
  98 static void
  99 vc4_screen_destroy(struct pipe_screen *pscreen)
 100 {
 101         struct vc4_screen *screen = vc4_screen(pscreen);
 102
 103         util_hash_table_destroy(screen->bo_handles);
 104         vc4_bufmgr_destroy(pscreen);
 105         slab_destroy_parent(&screen->transfer_pool);
 106         free(screen->ro);
 107
 108 #ifdef USE_VC4_SIMULATOR
 109         vc4_simulator_destroy(screen);
 110 #endif
 111
 112         close(screen->fd);
 113         ralloc_free(pscreen);
 114 }
 115
 116 static bool
 117 vc4_has_feature(struct vc4_screen *screen, uint32_t feature)
 118 {
 119         struct drm_vc4_get_param p = {
 120                 .param = feature,
 121         };
 122         int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &p);
 123
 124         if (ret != 0)
 125                 return false;
 126
 127         return p.value;
 128 }
 129
 130 static int
 131 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 132 {
 133         struct vc4_screen *screen = vc4_screen(pscreen);
 134
 135         switch (param) {
 136                 /* Supported features (boolean caps). */
 137         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 138         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 139         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 140         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 141         case PIPE_CAP_NPOT_TEXTURES:
 142         case PIPE_CAP_SHAREABLE_SHADERS:
 143         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 144         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 145         case PIPE_CAP_TEXTURE_SWIZZLE:
 146         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 147         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 148         case PIPE_CAP_TEXTURE_BARRIER:
 149                 return 1;
 150
 151         case PIPE_CAP_NATIVE_FENCE_FD:
 152                 return screen->has_syncobj;
 153
 154         case PIPE_CAP_TILE_RASTER_ORDER:
 155                 return vc4_has_feature(screen,
 156                                        DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER);
 157
 158                 /* lying for GL 2.0 */
 159         case PIPE_CAP_OCCLUSION_QUERY:
 160         case PIPE_CAP_POINT_SPRITE:
 161                 return 1;
 162
 163         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 164                 return 256;
 165
 166         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 167         case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 168                 return 120;
 169
 170         case PIPE_CAP_MAX_VIEWPORTS:
 171                 return 1;
 172
 173         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 174         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 175                 return 1;
 176
 177         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 178         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 179                 return 1;
 180
 181                 /* Unsupported features. */
 182         case PIPE_CAP_ANISOTROPIC_FILTER:
 183         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 184         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 185         case PIPE_CAP_CUBE_MAP_ARRAY:
 186         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 187         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 188         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 189         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 190         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 191         case PIPE_CAP_TGSI_INSTANCEID:
 192         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 193         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 194         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 195         case PIPE_CAP_COMPUTE:
 196         case PIPE_CAP_START_INSTANCE:
 197         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 198         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 199         case PIPE_CAP_TGSI_TEXCOORD:
 200         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 201         case PIPE_CAP_CONDITIONAL_RENDER:
 202         case PIPE_CAP_PRIMITIVE_RESTART:
 203         case PIPE_CAP_SM3:
 204         case PIPE_CAP_INDEP_BLEND_ENABLE:
 205         case PIPE_CAP_INDEP_BLEND_FUNC:
 206         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 207         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 208         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 209         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 210         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 211         case PIPE_CAP_USER_VERTEX_BUFFERS:
 212         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 213         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 214         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 215         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 216         case PIPE_CAP_TEXTURE_GATHER_SM5:
 217         case PIPE_CAP_FAKE_SW_MSAA:
 218         case PIPE_CAP_TEXTURE_QUERY_LOD:
 219         case PIPE_CAP_SAMPLE_SHADING:
 220         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 221         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 222         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 223         case PIPE_CAP_MAX_TEXEL_OFFSET:
 224         case PIPE_CAP_MAX_VERTEX_STREAMS:
 225         case PIPE_CAP_DRAW_INDIRECT:
 226         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 227         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 228         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 229         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 230         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 231         case PIPE_CAP_CLIP_HALFZ:
 232         case PIPE_CAP_VERTEXID_NOBASE:
 233         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 234         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 235         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 236         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 237         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 238         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 239         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 240         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 241         case PIPE_CAP_TGSI_TXQS:
 242         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 243         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 244         case PIPE_CAP_CLEAR_TEXTURE:
 245         case PIPE_CAP_DRAW_PARAMETERS:
 246         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 247         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 248         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 249         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 250         case PIPE_CAP_INVALIDATE_BUFFER:
 251         case PIPE_CAP_GENERATE_MIPMAP:
 252         case PIPE_CAP_STRING_MARKER:
 253         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 254         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 255         case PIPE_CAP_QUERY_MEMORY_INFO:
 256         case PIPE_CAP_PCI_GROUP:
 257         case PIPE_CAP_PCI_BUS:
 258         case PIPE_CAP_PCI_DEVICE:
 259         case PIPE_CAP_PCI_FUNCTION:
 260         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 261         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 262         case PIPE_CAP_CULL_DISTANCE:
 263         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 264         case PIPE_CAP_TGSI_VOTE:
 265         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 266         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 267         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 268         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 269         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 270         case PIPE_CAP_TGSI_FS_FBFETCH:
 271         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 272         case PIPE_CAP_DOUBLES:
 273         case PIPE_CAP_INT64:
 274         case PIPE_CAP_INT64_DIVMOD:
 275         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 276         case PIPE_CAP_TGSI_CLOCK:
 277         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 278         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 279         case PIPE_CAP_TGSI_BALLOT:
 280         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 281         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 282         case PIPE_CAP_POST_DEPTH_COVERAGE:
 283         case PIPE_CAP_BINDLESS_TEXTURE:
 284         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 285         case PIPE_CAP_QUERY_SO_OVERFLOW:
 286         case PIPE_CAP_MEMOBJ:
 287         case PIPE_CAP_LOAD_CONSTBUF:
 288         case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 289         case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 290         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 291         case PIPE_CAP_CONTEXT_PRIORITY_MASK:
 292         case PIPE_CAP_FENCE_SIGNAL:
 293         case PIPE_CAP_CONSTBUF0_FLAGS:
 294         case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
 295         case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
 296         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
 297         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
 298         case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
 299         case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
 300         case PIPE_CAP_PACKED_UNIFORMS:
 301                 return 0;
 302
 303                 /* Stream output. */
 304         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 305         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 306         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 307         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 308         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 309                 return 0;
 310
 311                 /* Geometry shader output, unsupported. */
 312         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 313         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 314                 return 0;
 315
 316                 /* Texturing. */
 317         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 318         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 319                 return VC4_MAX_MIP_LEVELS;
 320         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 321                 /* Note: Not supported in hardware, just faking it. */
 322                 return 5;
 323         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 324                 return 0;
 325
 326                 /* Render targets. */
 327         case PIPE_CAP_MAX_RENDER_TARGETS:
 328                 return 1;
 329
 330                 /* Queries. */
 331         case PIPE_CAP_QUERY_TIME_ELAPSED:
 332         case PIPE_CAP_QUERY_TIMESTAMP:
 333                 return 0;
 334
 335         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 336         case PIPE_CAP_MIN_TEXEL_OFFSET:
 337                 return 0;
 338
 339         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 340                 return 2048;
 341
 342         case PIPE_CAP_ENDIANNESS:
 343                 return PIPE_ENDIAN_LITTLE;
 344
 345         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 346                 return 64;
 347
 348         case PIPE_CAP_VENDOR_ID:
 349                 return 0x14E4;
 350         case PIPE_CAP_DEVICE_ID:
 351                 return 0xFFFFFFFF;
 352         case PIPE_CAP_ACCELERATED:
 353                 return 1;
 354         case PIPE_CAP_VIDEO_MEMORY: {
 355                 uint64_t system_memory;
 356
 357                 if (!os_get_total_physical_memory(&system_memory))
 358                         return 0;
 359
 360                 return (int)(system_memory >> 20);
 361         }
 362         case PIPE_CAP_UMA:
 363                 return 1;
 364
 365         default:
 366                 fprintf(stderr, "unknown param %d\n", param);
 367                 return 0;
 368         }
 369 }
 370
 371 static float
 372 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 373 {
 374         switch (param) {
 375         case PIPE_CAPF_MAX_LINE_WIDTH:
 376         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 377                 return 32;
 378
 379         case PIPE_CAPF_MAX_POINT_WIDTH:
 380         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 381                 return 512.0f;
 382
 383         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 384                 return 0.0f;
 385         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 386                 return 0.0f;
 387
 388         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 389         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 390         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 391                 return 0.0f;
 392         default:
 393                 fprintf(stderr, "unknown paramf %d\n", param);
 394                 return 0;
 395         }
 396 }
 397
 398 static int
 399 vc4_screen_get_shader_param(struct pipe_screen *pscreen,
 400                             enum pipe_shader_type shader,
 401                             enum pipe_shader_cap param)
 402 {
 403         if (shader != PIPE_SHADER_VERTEX &&
 404             shader != PIPE_SHADER_FRAGMENT) {
 405                 return 0;
 406         }
 407
 408         /* this is probably not totally correct.. but it's a start: */
 409         switch (param) {
 410         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 411         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 412         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 413         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 414                 return 16384;
 415
 416         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 417                 return vc4_screen(pscreen)->has_control_flow;
 418
 419         case PIPE_SHADER_CAP_MAX_INPUTS:
 420                 return 8;
 421         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 422                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 423         case PIPE_SHADER_CAP_MAX_TEMPS:
 424                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 425         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 426                 return 16 * 1024 * sizeof(float);
 427         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 428                 return 1;
 429         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 430                 return 0;
 431         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 432         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 433         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 434                 return 0;
 435         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 436                 return 1;
 437         case PIPE_SHADER_CAP_SUBROUTINES:
 438                 return 0;
 439         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 440                 return 0;
 441         case PIPE_SHADER_CAP_INTEGERS:
 442                 return 1;
 443         case PIPE_SHADER_CAP_INT64_ATOMICS:
 444         case PIPE_SHADER_CAP_FP16:
 445         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 446         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 447         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 448         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 449         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 450                 return 0;
 451         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 452         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 453                 return VC4_MAX_TEXTURE_SAMPLERS;
 454         case PIPE_SHADER_CAP_PREFERRED_IR:
 455                 return PIPE_SHADER_IR_NIR;
 456         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 457                 return 0;
 458         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 459                 return 32;
 460         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 461         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 462         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 463         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 464         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 465         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 466                 return 0;
 467         default:
 468                 fprintf(stderr, "unknown shader param %d\n", param);
 469                 return 0;
 470         }
 471         return 0;
 472 }
 473
 474 static boolean
 475 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 476                                enum pipe_format format,
 477                                enum pipe_texture_target target,
 478                                unsigned sample_count,
 479                                unsigned usage)
 480 {
 481         struct vc4_screen *screen = vc4_screen(pscreen);
 482
 483         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 484                 return FALSE;
 485
 486         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 487             !util_format_is_supported(format, usage)) {
 488                 return FALSE;
 489         }
 490
 491         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 492                 switch (format) {
 493                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 494                 case PIPE_FORMAT_R32G32B32_FLOAT:
 495                 case PIPE_FORMAT_R32G32_FLOAT:
 496                 case PIPE_FORMAT_R32_FLOAT:
 497                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 498                 case PIPE_FORMAT_R32G32B32_SNORM:
 499                 case PIPE_FORMAT_R32G32_SNORM:
 500                 case PIPE_FORMAT_R32_SNORM:
 501                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 502                 case PIPE_FORMAT_R32G32B32_SSCALED:
 503                 case PIPE_FORMAT_R32G32_SSCALED:
 504                 case PIPE_FORMAT_R32_SSCALED:
 505                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 506                 case PIPE_FORMAT_R16G16B16_UNORM:
 507                 case PIPE_FORMAT_R16G16_UNORM:
 508                 case PIPE_FORMAT_R16_UNORM:
 509                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 510                 case PIPE_FORMAT_R16G16B16_SNORM:
 511                 case PIPE_FORMAT_R16G16_SNORM:
 512                 case PIPE_FORMAT_R16_SNORM:
 513                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 514                 case PIPE_FORMAT_R16G16B16_USCALED:
 515                 case PIPE_FORMAT_R16G16_USCALED:
 516                 case PIPE_FORMAT_R16_USCALED:
 517                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 518                 case PIPE_FORMAT_R16G16B16_SSCALED:
 519                 case PIPE_FORMAT_R16G16_SSCALED:
 520                 case PIPE_FORMAT_R16_SSCALED:
 521                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 522                 case PIPE_FORMAT_R8G8B8_UNORM:
 523                 case PIPE_FORMAT_R8G8_UNORM:
 524                 case PIPE_FORMAT_R8_UNORM:
 525                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 526                 case PIPE_FORMAT_R8G8B8_SNORM:
 527                 case PIPE_FORMAT_R8G8_SNORM:
 528                 case PIPE_FORMAT_R8_SNORM:
 529                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 530                 case PIPE_FORMAT_R8G8B8_USCALED:
 531                 case PIPE_FORMAT_R8G8_USCALED:
 532                 case PIPE_FORMAT_R8_USCALED:
 533                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 534                 case PIPE_FORMAT_R8G8B8_SSCALED:
 535                 case PIPE_FORMAT_R8G8_SSCALED:
 536                 case PIPE_FORMAT_R8_SSCALED:
 537                         break;
 538                 default:
 539                         return FALSE;
 540                 }
 541         }
 542
 543         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 544             !vc4_rt_format_supported(format)) {
 545                 return FALSE;
 546         }
 547
 548         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 549             (!vc4_tex_format_supported(format) ||
 550              (format == PIPE_FORMAT_ETC1_RGB8 && !screen->has_etc1))) {
 551                 return FALSE;
 552         }
 553
 554         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 555             format != PIPE_FORMAT_S8_UINT_Z24_UNORM &&
 556             format != PIPE_FORMAT_X8Z24_UNORM) {
 557                 return FALSE;
 558         }
 559
 560         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 561             format != PIPE_FORMAT_I8_UINT &&
 562             format != PIPE_FORMAT_I16_UINT) {
 563                 return FALSE;
 564         }
 565
 566         return TRUE;
 567 }
 568
 569 static void
 570 vc4_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 571                                   enum pipe_format format, int max,
 572                                   uint64_t *modifiers,
 573                                   unsigned int *external_only,
 574                                   int *count)
 575 {
 576         int m, i;
 577         uint64_t available_modifiers[] = {
 578                 DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
 579                 DRM_FORMAT_MOD_LINEAR,
 580         };
 581         struct vc4_screen *screen = vc4_screen(pscreen);
 582         int num_modifiers = screen->has_tiling_ioctl ? 2 : 1;
 583
 584         if (!modifiers) {
 585                 *count = num_modifiers;
 586                 return;
 587         }
 588
 589         *count = MIN2(max, num_modifiers);
 590         m = screen->has_tiling_ioctl ? 0 : 1;
 591         /* We support both modifiers (tiled and linear) for all sampler
 592          * formats, but if we don't have the DRM_VC4_GET_TILING ioctl
 593          * we shouldn't advertise the tiled formats.
 594          */
 595         for (i = 0; i < *count; i++) {
 596                 modifiers[i] = available_modifiers[m++];
 597                 if (external_only)
 598                         external_only[i] = false;
 599        }
 600 }
 601
 602 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 603
 604 static unsigned handle_hash(void *key)
 605 {
 606     return PTR_TO_UINT(key);
 607 }
 608
 609 static int handle_compare(void *key1, void *key2)
 610 {
 611     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 612 }
 613
 614 static bool
 615 vc4_get_chip_info(struct vc4_screen *screen)
 616 {
 617         struct drm_vc4_get_param ident0 = {
 618                 .param = DRM_VC4_PARAM_V3D_IDENT0,
 619         };
 620         struct drm_vc4_get_param ident1 = {
 621                 .param = DRM_VC4_PARAM_V3D_IDENT1,
 622         };
 623         int ret;
 624
 625         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
 626         if (ret != 0) {
 627                 if (errno == EINVAL) {
 628                         /* Backwards compatibility with 2835 kernels which
 629                          * only do V3D 2.1.
 630                          */
 631                         screen->v3d_ver = 21;
 632                         return true;
 633                 } else {
 634                         fprintf(stderr, "Couldn't get V3D IDENT0: %s\n",
 635                                 strerror(errno));
 636                         return false;
 637                 }
 638         }
 639         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident1);
 640         if (ret != 0) {
 641                 fprintf(stderr, "Couldn't get V3D IDENT1: %s\n",
 642                         strerror(errno));
 643                 return false;
 644         }
 645
 646         uint32_t major = (ident0.value >> 24) & 0xff;
 647         uint32_t minor = (ident1.value >> 0) & 0xf;
 648         screen->v3d_ver = major * 10 + minor;
 649
 650         if (screen->v3d_ver != 21 && screen->v3d_ver != 26) {
 651                 fprintf(stderr,
 652                         "V3D %d.%d not supported by this version of Mesa.\n",
 653                         screen->v3d_ver / 10,
 654                         screen->v3d_ver % 10);
 655                 return false;
 656         }
 657
 658         return true;
 659 }
 660
 661 struct pipe_screen *
 662 vc4_screen_create(int fd, struct renderonly *ro)
 663 {
 664         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 665         uint64_t syncobj_cap = 0;
 666         struct pipe_screen *pscreen;
 667         int err;
 668
 669         pscreen = &screen->base;
 670
 671         pscreen->destroy = vc4_screen_destroy;
 672         pscreen->get_param = vc4_screen_get_param;
 673         pscreen->get_paramf = vc4_screen_get_paramf;
 674         pscreen->get_shader_param = vc4_screen_get_shader_param;
 675         pscreen->context_create = vc4_context_create;
 676         pscreen->is_format_supported = vc4_screen_is_format_supported;
 677
 678         screen->fd = fd;
 679         if (ro) {
 680                 screen->ro = renderonly_dup(ro);
 681                 if (!screen->ro) {
 682                         fprintf(stderr, "Failed to dup renderonly object\n");
 683                         ralloc_free(screen);
 684                         return NULL;
 685                 }
 686         }
 687
 688         list_inithead(&screen->bo_cache.time_list);
 689         (void) mtx_init(&screen->bo_handles_mutex, mtx_plain);
 690         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 691
 692         screen->has_control_flow =
 693                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_BRANCHES);
 694         screen->has_etc1 =
 695                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_ETC1);
 696         screen->has_threaded_fs =
 697                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_THREADED_FS);
 698         screen->has_madvise =
 699                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_MADVISE);
 700         screen->has_perfmon_ioctl =
 701                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_PERFMON);
 702
 703         err = drmGetCap(fd, DRM_CAP_SYNCOBJ, &syncobj_cap);
 704         if (err == 0 && syncobj_cap)
 705                 screen->has_syncobj = true;
 706
 707         if (!vc4_get_chip_info(screen))
 708                 goto fail;
 709
 710         util_cpu_detect();
 711
 712         slab_create_parent(&screen->transfer_pool, sizeof(struct vc4_transfer), 16);
 713
 714         vc4_fence_screen_init(screen);
 715
 716         vc4_debug = debug_get_option_vc4_debug();
 717         if (vc4_debug & VC4_DEBUG_SHADERDB)
 718                 vc4_debug |= VC4_DEBUG_NORAST;
 719
 720 #ifdef USE_VC4_SIMULATOR
 721         vc4_simulator_init(screen);
 722 #endif
 723
 724         vc4_resource_screen_init(pscreen);
 725
 726         pscreen->get_name = vc4_screen_get_name;
 727         pscreen->get_vendor = vc4_screen_get_vendor;
 728         pscreen->get_device_vendor = vc4_screen_get_vendor;
 729         pscreen->get_compiler_options = vc4_screen_get_compiler_options;
 730         pscreen->query_dmabuf_modifiers = vc4_screen_query_dmabuf_modifiers;
 731
 732         if (screen->has_perfmon_ioctl) {
 733                 pscreen->get_driver_query_group_info = vc4_get_driver_query_group_info;
 734                 pscreen->get_driver_query_info = vc4_get_driver_query_info;
 735         }
 736
 737         return pscreen;
 738
 739 fail:
 740         close(fd);
 741         ralloc_free(pscreen);
 742         return NULL;
 743 }