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_TILE_RASTER_ORDER:
 152                 return vc4_has_feature(screen,
 153                                        DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER);
 154
 155                 /* lying for GL 2.0 */
 156         case PIPE_CAP_OCCLUSION_QUERY:
 157         case PIPE_CAP_POINT_SPRITE:
 158                 return 1;
 159
 160         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 161                 return 256;
 162
 163         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 164                 return 120;
 165
 166         case PIPE_CAP_MAX_VIEWPORTS:
 167                 return 1;
 168
 169         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 170         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 171                 return 1;
 172
 173         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 174         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 175                 return 1;
 176
 177                 /* Unsupported features. */
 178         case PIPE_CAP_ANISOTROPIC_FILTER:
 179         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 180         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 181         case PIPE_CAP_CUBE_MAP_ARRAY:
 182         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 183         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 184         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 185         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 186         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 187         case PIPE_CAP_TGSI_INSTANCEID:
 188         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 189         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 190         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 191         case PIPE_CAP_COMPUTE:
 192         case PIPE_CAP_START_INSTANCE:
 193         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 194         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 195         case PIPE_CAP_TGSI_TEXCOORD:
 196         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 197         case PIPE_CAP_CONDITIONAL_RENDER:
 198         case PIPE_CAP_PRIMITIVE_RESTART:
 199         case PIPE_CAP_SM3:
 200         case PIPE_CAP_INDEP_BLEND_ENABLE:
 201         case PIPE_CAP_INDEP_BLEND_FUNC:
 202         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 203         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 204         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 205         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 206         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 207         case PIPE_CAP_USER_VERTEX_BUFFERS:
 208         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 209         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 210         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 211         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 212         case PIPE_CAP_TEXTURE_GATHER_SM5:
 213         case PIPE_CAP_FAKE_SW_MSAA:
 214         case PIPE_CAP_TEXTURE_QUERY_LOD:
 215         case PIPE_CAP_SAMPLE_SHADING:
 216         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 217         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 218         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 219         case PIPE_CAP_MAX_TEXEL_OFFSET:
 220         case PIPE_CAP_MAX_VERTEX_STREAMS:
 221         case PIPE_CAP_DRAW_INDIRECT:
 222         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 223         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 224         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 225         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 226         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 227         case PIPE_CAP_CLIP_HALFZ:
 228         case PIPE_CAP_VERTEXID_NOBASE:
 229         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 230         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 231         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 232         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 233         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 234         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 235         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 236         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 237         case PIPE_CAP_TGSI_TXQS:
 238         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 239         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 240         case PIPE_CAP_CLEAR_TEXTURE:
 241         case PIPE_CAP_DRAW_PARAMETERS:
 242         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 243         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 244         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 245         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 246         case PIPE_CAP_INVALIDATE_BUFFER:
 247         case PIPE_CAP_GENERATE_MIPMAP:
 248         case PIPE_CAP_STRING_MARKER:
 249         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 250         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 251         case PIPE_CAP_QUERY_MEMORY_INFO:
 252         case PIPE_CAP_PCI_GROUP:
 253         case PIPE_CAP_PCI_BUS:
 254         case PIPE_CAP_PCI_DEVICE:
 255         case PIPE_CAP_PCI_FUNCTION:
 256         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 257         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 258         case PIPE_CAP_CULL_DISTANCE:
 259         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 260         case PIPE_CAP_TGSI_VOTE:
 261         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 262         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 263         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 264         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 265         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 266         case PIPE_CAP_NATIVE_FENCE_FD:
 267         case PIPE_CAP_TGSI_FS_FBFETCH:
 268         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 269         case PIPE_CAP_DOUBLES:
 270         case PIPE_CAP_INT64:
 271         case PIPE_CAP_INT64_DIVMOD:
 272         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 273         case PIPE_CAP_TGSI_CLOCK:
 274         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 275         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 276         case PIPE_CAP_TGSI_BALLOT:
 277         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 278         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 279         case PIPE_CAP_POST_DEPTH_COVERAGE:
 280         case PIPE_CAP_BINDLESS_TEXTURE:
 281         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 282         case PIPE_CAP_QUERY_SO_OVERFLOW:
 283         case PIPE_CAP_MEMOBJ:
 284         case PIPE_CAP_LOAD_CONSTBUF:
 285         case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 286         case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 287         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 288         case PIPE_CAP_CONTEXT_PRIORITY_MASK:
 289                 return 0;
 290
 291                 /* Stream output. */
 292         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 293         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 294         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 295         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 296         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 297                 return 0;
 298
 299                 /* Geometry shader output, unsupported. */
 300         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 301         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 302                 return 0;
 303
 304                 /* Texturing. */
 305         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 306         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 307                 return VC4_MAX_MIP_LEVELS;
 308         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 309                 /* Note: Not supported in hardware, just faking it. */
 310                 return 5;
 311         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 312                 return 0;
 313
 314                 /* Render targets. */
 315         case PIPE_CAP_MAX_RENDER_TARGETS:
 316                 return 1;
 317
 318                 /* Queries. */
 319         case PIPE_CAP_QUERY_TIME_ELAPSED:
 320         case PIPE_CAP_QUERY_TIMESTAMP:
 321                 return 0;
 322
 323         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 324         case PIPE_CAP_MIN_TEXEL_OFFSET:
 325                 return 0;
 326
 327         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 328                 return 2048;
 329
 330         case PIPE_CAP_ENDIANNESS:
 331                 return PIPE_ENDIAN_LITTLE;
 332
 333         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 334                 return 64;
 335
 336         case PIPE_CAP_VENDOR_ID:
 337                 return 0x14E4;
 338         case PIPE_CAP_DEVICE_ID:
 339                 return 0xFFFFFFFF;
 340         case PIPE_CAP_ACCELERATED:
 341                 return 1;
 342         case PIPE_CAP_VIDEO_MEMORY: {
 343                 uint64_t system_memory;
 344
 345                 if (!os_get_total_physical_memory(&system_memory))
 346                         return 0;
 347
 348                 return (int)(system_memory >> 20);
 349         }
 350         case PIPE_CAP_UMA:
 351                 return 1;
 352
 353         default:
 354                 fprintf(stderr, "unknown param %d\n", param);
 355                 return 0;
 356         }
 357 }
 358
 359 static float
 360 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 361 {
 362         switch (param) {
 363         case PIPE_CAPF_MAX_LINE_WIDTH:
 364         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 365                 return 32;
 366
 367         case PIPE_CAPF_MAX_POINT_WIDTH:
 368         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 369                 return 512.0f;
 370
 371         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 372                 return 0.0f;
 373         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 374                 return 0.0f;
 375         case PIPE_CAPF_GUARD_BAND_LEFT:
 376         case PIPE_CAPF_GUARD_BAND_TOP:
 377         case PIPE_CAPF_GUARD_BAND_RIGHT:
 378         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 379                 return 0.0f;
 380         default:
 381                 fprintf(stderr, "unknown paramf %d\n", param);
 382                 return 0;
 383         }
 384 }
 385
 386 static int
 387 vc4_screen_get_shader_param(struct pipe_screen *pscreen,
 388                             enum pipe_shader_type shader,
 389                             enum pipe_shader_cap param)
 390 {
 391         if (shader != PIPE_SHADER_VERTEX &&
 392             shader != PIPE_SHADER_FRAGMENT) {
 393                 return 0;
 394         }
 395
 396         /* this is probably not totally correct.. but it's a start: */
 397         switch (param) {
 398         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 399         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 400         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 401         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 402                 return 16384;
 403
 404         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 405                 return vc4_screen(pscreen)->has_control_flow;
 406
 407         case PIPE_SHADER_CAP_MAX_INPUTS:
 408                 return 8;
 409         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 410                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 411         case PIPE_SHADER_CAP_MAX_TEMPS:
 412                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 413         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 414                 return 16 * 1024 * sizeof(float);
 415         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 416                 return 1;
 417         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 418                 return 0;
 419         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 420         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 421         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 422                 return 0;
 423         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 424                 return 1;
 425         case PIPE_SHADER_CAP_SUBROUTINES:
 426                 return 0;
 427         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 428                 return 0;
 429         case PIPE_SHADER_CAP_INTEGERS:
 430                 return 1;
 431         case PIPE_SHADER_CAP_INT64_ATOMICS:
 432         case PIPE_SHADER_CAP_FP16:
 433         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 434         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 435         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 436         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 437         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 438                 return 0;
 439         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 440         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 441                 return VC4_MAX_TEXTURE_SAMPLERS;
 442         case PIPE_SHADER_CAP_PREFERRED_IR:
 443                 return PIPE_SHADER_IR_NIR;
 444         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 445                 return 0;
 446         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 447                 return 32;
 448         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 449         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 450         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 451         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 452         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 453         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 454                 return 0;
 455         default:
 456                 fprintf(stderr, "unknown shader param %d\n", param);
 457                 return 0;
 458         }
 459         return 0;
 460 }
 461
 462 static boolean
 463 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 464                                enum pipe_format format,
 465                                enum pipe_texture_target target,
 466                                unsigned sample_count,
 467                                unsigned usage)
 468 {
 469         struct vc4_screen *screen = vc4_screen(pscreen);
 470         unsigned retval = 0;
 471
 472         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 473                 return FALSE;
 474
 475         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 476             !util_format_is_supported(format, usage)) {
 477                 return FALSE;
 478         }
 479
 480         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 481                 switch (format) {
 482                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 483                 case PIPE_FORMAT_R32G32B32_FLOAT:
 484                 case PIPE_FORMAT_R32G32_FLOAT:
 485                 case PIPE_FORMAT_R32_FLOAT:
 486                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 487                 case PIPE_FORMAT_R32G32B32_SNORM:
 488                 case PIPE_FORMAT_R32G32_SNORM:
 489                 case PIPE_FORMAT_R32_SNORM:
 490                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 491                 case PIPE_FORMAT_R32G32B32_SSCALED:
 492                 case PIPE_FORMAT_R32G32_SSCALED:
 493                 case PIPE_FORMAT_R32_SSCALED:
 494                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 495                 case PIPE_FORMAT_R16G16B16_UNORM:
 496                 case PIPE_FORMAT_R16G16_UNORM:
 497                 case PIPE_FORMAT_R16_UNORM:
 498                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 499                 case PIPE_FORMAT_R16G16B16_SNORM:
 500                 case PIPE_FORMAT_R16G16_SNORM:
 501                 case PIPE_FORMAT_R16_SNORM:
 502                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 503                 case PIPE_FORMAT_R16G16B16_USCALED:
 504                 case PIPE_FORMAT_R16G16_USCALED:
 505                 case PIPE_FORMAT_R16_USCALED:
 506                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 507                 case PIPE_FORMAT_R16G16B16_SSCALED:
 508                 case PIPE_FORMAT_R16G16_SSCALED:
 509                 case PIPE_FORMAT_R16_SSCALED:
 510                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 511                 case PIPE_FORMAT_R8G8B8_UNORM:
 512                 case PIPE_FORMAT_R8G8_UNORM:
 513                 case PIPE_FORMAT_R8_UNORM:
 514                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 515                 case PIPE_FORMAT_R8G8B8_SNORM:
 516                 case PIPE_FORMAT_R8G8_SNORM:
 517                 case PIPE_FORMAT_R8_SNORM:
 518                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 519                 case PIPE_FORMAT_R8G8B8_USCALED:
 520                 case PIPE_FORMAT_R8G8_USCALED:
 521                 case PIPE_FORMAT_R8_USCALED:
 522                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 523                 case PIPE_FORMAT_R8G8B8_SSCALED:
 524                 case PIPE_FORMAT_R8G8_SSCALED:
 525                 case PIPE_FORMAT_R8_SSCALED:
 526                         retval |= PIPE_BIND_VERTEX_BUFFER;
 527                         break;
 528                 default:
 529                         break;
 530                 }
 531         }
 532
 533         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 534             vc4_rt_format_supported(format)) {
 535                 retval |= PIPE_BIND_RENDER_TARGET;
 536         }
 537
 538         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 539             vc4_tex_format_supported(format) &&
 540             (format != PIPE_FORMAT_ETC1_RGB8 || screen->has_etc1)) {
 541                 retval |= PIPE_BIND_SAMPLER_VIEW;
 542         }
 543
 544         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 545             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 546              format == PIPE_FORMAT_X8Z24_UNORM)) {
 547                 retval |= PIPE_BIND_DEPTH_STENCIL;
 548         }
 549
 550         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 551             (format == PIPE_FORMAT_I8_UINT ||
 552              format == PIPE_FORMAT_I16_UINT)) {
 553                 retval |= PIPE_BIND_INDEX_BUFFER;
 554         }
 555
 556 #if 0
 557         if (retval != usage) {
 558                 fprintf(stderr,
 559                         "not supported: format=%s, target=%d, sample_count=%d, "
 560                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 561                         target, sample_count, usage, retval);
 562         }
 563 #endif
 564
 565         return retval == usage;
 566 }
 567
 568 static void
 569 vc4_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 570                                   enum pipe_format format, int max,
 571                                   uint64_t *modifiers,
 572                                   unsigned int *external_only,
 573                                   int *count)
 574 {
 575         int m, i;
 576         uint64_t available_modifiers[] = {
 577                 DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
 578                 DRM_FORMAT_MOD_LINEAR,
 579         };
 580         struct vc4_screen *screen = vc4_screen(pscreen);
 581         int num_modifiers = screen->has_tiling_ioctl ? 2 : 1;
 582
 583         if (!modifiers) {
 584                 *count = num_modifiers;
 585                 return;
 586         }
 587
 588         *count = MIN2(max, num_modifiers);
 589         m = screen->has_tiling_ioctl ? 0 : 1;
 590         /* We support both modifiers (tiled and linear) for all sampler
 591          * formats, but if we don't have the DRM_VC4_GET_TILING ioctl
 592          * we shouldn't advertise the tiled formats.
 593          */
 594         for (i = 0; i < *count; i++) {
 595                 modifiers[i] = available_modifiers[m++];
 596                 if (external_only)
 597                         external_only[i] = false;
 598        }
 599 }
 600
 601 #define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
 602
 603 static unsigned handle_hash(void *key)
 604 {
 605     return PTR_TO_UINT(key);
 606 }
 607
 608 static int handle_compare(void *key1, void *key2)
 609 {
 610     return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
 611 }
 612
 613 static bool
 614 vc4_get_chip_info(struct vc4_screen *screen)
 615 {
 616         struct drm_vc4_get_param ident0 = {
 617                 .param = DRM_VC4_PARAM_V3D_IDENT0,
 618         };
 619         struct drm_vc4_get_param ident1 = {
 620                 .param = DRM_VC4_PARAM_V3D_IDENT1,
 621         };
 622         int ret;
 623
 624         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
 625         if (ret != 0) {
 626                 if (errno == EINVAL) {
 627                         /* Backwards compatibility with 2835 kernels which
 628                          * only do V3D 2.1.
 629                          */
 630                         screen->v3d_ver = 21;
 631                         return true;
 632                 } else {
 633                         fprintf(stderr, "Couldn't get V3D IDENT0: %s\n",
 634                                 strerror(errno));
 635                         return false;
 636                 }
 637         }
 638         ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident1);
 639         if (ret != 0) {
 640                 fprintf(stderr, "Couldn't get V3D IDENT1: %s\n",
 641                         strerror(errno));
 642                 return false;
 643         }
 644
 645         uint32_t major = (ident0.value >> 24) & 0xff;
 646         uint32_t minor = (ident1.value >> 0) & 0xf;
 647         screen->v3d_ver = major * 10 + minor;
 648
 649         if (screen->v3d_ver != 21 && screen->v3d_ver != 26) {
 650                 fprintf(stderr,
 651                         "V3D %d.%d not supported by this version of Mesa.\n",
 652                         screen->v3d_ver / 10,
 653                         screen->v3d_ver % 10);
 654                 return false;
 655         }
 656
 657         return true;
 658 }
 659
 660 struct pipe_screen *
 661 vc4_screen_create(int fd, struct renderonly *ro)
 662 {
 663         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 664         struct pipe_screen *pscreen;
 665
 666         pscreen = &screen->base;
 667
 668         pscreen->destroy = vc4_screen_destroy;
 669         pscreen->get_param = vc4_screen_get_param;
 670         pscreen->get_paramf = vc4_screen_get_paramf;
 671         pscreen->get_shader_param = vc4_screen_get_shader_param;
 672         pscreen->context_create = vc4_context_create;
 673         pscreen->is_format_supported = vc4_screen_is_format_supported;
 674
 675         screen->fd = fd;
 676         if (ro) {
 677                 screen->ro = renderonly_dup(ro);
 678                 if (!screen->ro) {
 679                         fprintf(stderr, "Failed to dup renderonly object\n");
 680                         ralloc_free(screen);
 681                         return NULL;
 682                 }
 683         }
 684
 685         list_inithead(&screen->bo_cache.time_list);
 686         (void) mtx_init(&screen->bo_handles_mutex, mtx_plain);
 687         screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
 688
 689         screen->has_control_flow =
 690                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_BRANCHES);
 691         screen->has_etc1 =
 692                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_ETC1);
 693         screen->has_threaded_fs =
 694                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_THREADED_FS);
 695         screen->has_madvise =
 696                 vc4_has_feature(screen, DRM_VC4_PARAM_SUPPORTS_MADVISE);
 697
 698         if (!vc4_get_chip_info(screen))
 699                 goto fail;
 700
 701         util_cpu_detect();
 702
 703         slab_create_parent(&screen->transfer_pool, sizeof(struct vc4_transfer), 16);
 704
 705         vc4_fence_init(screen);
 706
 707         vc4_debug = debug_get_option_vc4_debug();
 708         if (vc4_debug & VC4_DEBUG_SHADERDB)
 709                 vc4_debug |= VC4_DEBUG_NORAST;
 710
 711 #ifdef USE_VC4_SIMULATOR
 712         vc4_simulator_init(screen);
 713 #endif
 714
 715         vc4_resource_screen_init(pscreen);
 716
 717         pscreen->get_name = vc4_screen_get_name;
 718         pscreen->get_vendor = vc4_screen_get_vendor;
 719         pscreen->get_device_vendor = vc4_screen_get_vendor;
 720         pscreen->get_compiler_options = vc4_screen_get_compiler_options;
 721         pscreen->query_dmabuf_modifiers = vc4_screen_query_dmabuf_modifiers;
 722
 723         return pscreen;
 724
 725 fail:
 726         close(fd);
 727         ralloc_free(pscreen);
 728         return NULL;
 729 }