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_debug.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_format.h"
  33 #include "util/ralloc.h"
  34
  35 #include <xf86drm.h>
  36 #include "vc4_drm.h"
  37 #include "vc4_screen.h"
  38 #include "vc4_context.h"
  39 #include "vc4_resource.h"
  40
  41 static const struct debug_named_value debug_options[] = {
  42         { "cl",       VC4_DEBUG_CL,
  43           "Dump command list during creation" },
  44         { "qpu",      VC4_DEBUG_QPU,
  45           "Dump generated QPU instructions" },
  46         { "qir",      VC4_DEBUG_QIR,
  47           "Dump QPU IR during program compile" },
  48         { "nir",      VC4_DEBUG_NIR,
  49           "Dump NIR during program compile" },
  50         { "tgsi",     VC4_DEBUG_TGSI,
  51           "Dump TGSI during program compile" },
  52         { "shaderdb", VC4_DEBUG_SHADERDB,
  53           "Dump program compile information for shader-db analysis" },
  54         { "perf",     VC4_DEBUG_PERF,
  55           "Print during performance-related events" },
  56         { "norast",   VC4_DEBUG_NORAST,
  57           "Skip actual hardware execution of commands" },
  58         { "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
  59           "Flush after each draw call" },
  60         { "always_sync", VC4_DEBUG_ALWAYS_SYNC,
  61           "Wait for finish after each flush" },
  62 #if USE_VC4_SIMULATOR
  63         { "dump", VC4_DEBUG_DUMP,
  64           "Write a GPU command stream trace file" },
  65 #endif
  66         { NULL }
  67 };
  68
  69 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  70 uint32_t vc4_debug;
  71
  72 static const char *
  73 vc4_screen_get_name(struct pipe_screen *pscreen)
  74 {
  75         return "VC4";
  76 }
  77
  78 static const char *
  79 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  80 {
  81         return "Broadcom";
  82 }
  83
  84 static void
  85 vc4_screen_destroy(struct pipe_screen *pscreen)
  86 {
  87         struct vc4_screen *screen = vc4_screen(pscreen);
  88
  89         vc4_bufmgr_destroy(pscreen);
  90         close(screen->fd);
  91         ralloc_free(pscreen);
  92 }
  93
  94 static int
  95 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  96 {
  97         switch (param) {
  98                 /* Supported features (boolean caps). */
  99         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 100         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 101         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 102         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 103         case PIPE_CAP_NPOT_TEXTURES:
 104         case PIPE_CAP_SHAREABLE_SHADERS:
 105         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 106         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 107         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 108         case PIPE_CAP_TWO_SIDED_STENCIL:
 109         case PIPE_CAP_USER_INDEX_BUFFERS:
 110         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 111         case PIPE_CAP_TEXTURE_SWIZZLE:
 112                 return 1;
 113
 114                 /* lying for GL 2.0 */
 115         case PIPE_CAP_OCCLUSION_QUERY:
 116         case PIPE_CAP_POINT_SPRITE:
 117                 return 1;
 118
 119         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 120                 return 256;
 121
 122         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 123                 return 120;
 124
 125         case PIPE_CAP_MAX_VIEWPORTS:
 126                 return 1;
 127
 128         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 129         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 130                 return 1;
 131
 132         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 133                 return 1;
 134
 135                 /* Unsupported features. */
 136         case PIPE_CAP_ANISOTROPIC_FILTER:
 137         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 138         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 139         case PIPE_CAP_CUBE_MAP_ARRAY:
 140         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 141         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 142         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 143         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 144         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 145         case PIPE_CAP_TGSI_INSTANCEID:
 146         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 147         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 148         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 149         case PIPE_CAP_COMPUTE:
 150         case PIPE_CAP_START_INSTANCE:
 151         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 152         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 153         case PIPE_CAP_TGSI_TEXCOORD:
 154         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 155         case PIPE_CAP_CONDITIONAL_RENDER:
 156         case PIPE_CAP_PRIMITIVE_RESTART:
 157         case PIPE_CAP_TEXTURE_BARRIER:
 158         case PIPE_CAP_SM3:
 159         case PIPE_CAP_INDEP_BLEND_ENABLE:
 160         case PIPE_CAP_INDEP_BLEND_FUNC:
 161         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 162         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 163         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 164         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 165         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 166         case PIPE_CAP_USER_VERTEX_BUFFERS:
 167         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 168         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 169         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 170         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 171         case PIPE_CAP_TEXTURE_GATHER_SM5:
 172         case PIPE_CAP_FAKE_SW_MSAA:
 173         case PIPE_CAP_TEXTURE_QUERY_LOD:
 174         case PIPE_CAP_SAMPLE_SHADING:
 175         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 176         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 177         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 178         case PIPE_CAP_MAX_TEXEL_OFFSET:
 179         case PIPE_CAP_MAX_VERTEX_STREAMS:
 180         case PIPE_CAP_DRAW_INDIRECT:
 181         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 182         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 183         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 184         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 185         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 186         case PIPE_CAP_CLIP_HALFZ:
 187         case PIPE_CAP_VERTEXID_NOBASE:
 188         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 189         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 190         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 191         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 192         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 193         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 194         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 195         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 196         case PIPE_CAP_TGSI_TXQS:
 197         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 198         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 199         case PIPE_CAP_CLEAR_TEXTURE:
 200         case PIPE_CAP_DRAW_PARAMETERS:
 201         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 202         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 203         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 204         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 205         case PIPE_CAP_INVALIDATE_BUFFER:
 206         case PIPE_CAP_GENERATE_MIPMAP:
 207         case PIPE_CAP_STRING_MARKER:
 208         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 209         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 210         case PIPE_CAP_QUERY_MEMORY_INFO:
 211         case PIPE_CAP_PCI_GROUP:
 212         case PIPE_CAP_PCI_BUS:
 213         case PIPE_CAP_PCI_DEVICE:
 214         case PIPE_CAP_PCI_FUNCTION:
 215         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 216         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 217         case PIPE_CAP_CULL_DISTANCE:
 218         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 219         case PIPE_CAP_TGSI_VOTE:
 220         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 221         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 222         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 223                 return 0;
 224
 225                 /* Stream output. */
 226         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 227         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 228         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 229         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 230                 return 0;
 231
 232                 /* Geometry shader output, unsupported. */
 233         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 234         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 235                 return 0;
 236
 237                 /* Texturing. */
 238         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 239         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 240                 return VC4_MAX_MIP_LEVELS;
 241         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 242                 /* Note: Not supported in hardware, just faking it. */
 243                 return 5;
 244         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 245                 return 0;
 246
 247                 /* Render targets. */
 248         case PIPE_CAP_MAX_RENDER_TARGETS:
 249                 return 1;
 250
 251                 /* Queries. */
 252         case PIPE_CAP_QUERY_TIME_ELAPSED:
 253         case PIPE_CAP_QUERY_TIMESTAMP:
 254                 return 0;
 255
 256         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 257         case PIPE_CAP_MIN_TEXEL_OFFSET:
 258                 return 0;
 259
 260         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 261                 return 2048;
 262
 263         case PIPE_CAP_ENDIANNESS:
 264                 return PIPE_ENDIAN_LITTLE;
 265
 266         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 267                 return 64;
 268
 269         case PIPE_CAP_VENDOR_ID:
 270                 return 0x14E4;
 271         case PIPE_CAP_DEVICE_ID:
 272                 return 0xFFFFFFFF;
 273         case PIPE_CAP_ACCELERATED:
 274                 return 1;
 275         case PIPE_CAP_VIDEO_MEMORY: {
 276                 uint64_t system_memory;
 277
 278                 if (!os_get_total_physical_memory(&system_memory))
 279                         return 0;
 280
 281                 return (int)(system_memory >> 20);
 282         }
 283         case PIPE_CAP_UMA:
 284                 return 1;
 285
 286         default:
 287                 fprintf(stderr, "unknown param %d\n", param);
 288                 return 0;
 289         }
 290 }
 291
 292 static float
 293 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 294 {
 295         switch (param) {
 296         case PIPE_CAPF_MAX_LINE_WIDTH:
 297         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 298                 return 32;
 299
 300         case PIPE_CAPF_MAX_POINT_WIDTH:
 301         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 302                 return 512.0f;
 303
 304         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 305                 return 0.0f;
 306         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 307                 return 0.0f;
 308         case PIPE_CAPF_GUARD_BAND_LEFT:
 309         case PIPE_CAPF_GUARD_BAND_TOP:
 310         case PIPE_CAPF_GUARD_BAND_RIGHT:
 311         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 312                 return 0.0f;
 313         default:
 314                 fprintf(stderr, "unknown paramf %d\n", param);
 315                 return 0;
 316         }
 317 }
 318
 319 static int
 320 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 321                            enum pipe_shader_cap param)
 322 {
 323         if (shader != PIPE_SHADER_VERTEX &&
 324             shader != PIPE_SHADER_FRAGMENT) {
 325                 return 0;
 326         }
 327
 328         /* this is probably not totally correct.. but it's a start: */
 329         switch (param) {
 330         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 331         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 332         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 333         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 334                 return 16384;
 335
 336         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 337                 return vc4_screen(pscreen)->has_control_flow;
 338
 339         case PIPE_SHADER_CAP_MAX_INPUTS:
 340                 if (shader == PIPE_SHADER_FRAGMENT)
 341                         return 8;
 342                 else
 343                         return 16;
 344         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 345                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 346         case PIPE_SHADER_CAP_MAX_TEMPS:
 347                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 348         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 349                 return 16 * 1024 * sizeof(float);
 350         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 351                 return 1;
 352         case PIPE_SHADER_CAP_MAX_PREDS:
 353                 return 0; /* nothing uses this */
 354         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 355                 return 0;
 356         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 357         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 358         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 359                 return 0;
 360         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 361                 return 1;
 362         case PIPE_SHADER_CAP_SUBROUTINES:
 363                 return 0;
 364         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 365                 return 0;
 366         case PIPE_SHADER_CAP_INTEGERS:
 367                 return 1;
 368         case PIPE_SHADER_CAP_DOUBLES:
 369         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 370         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 371         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 372         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 373                 return 0;
 374         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 375         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 376                 return VC4_MAX_TEXTURE_SAMPLERS;
 377         case PIPE_SHADER_CAP_PREFERRED_IR:
 378                 return PIPE_SHADER_IR_TGSI;
 379         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 380                 return 0;
 381         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 382                 return 32;
 383         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 384         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 385                 return 0;
 386         default:
 387                 fprintf(stderr, "unknown shader param %d\n", param);
 388                 return 0;
 389         }
 390         return 0;
 391 }
 392
 393 static boolean
 394 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 395                                enum pipe_format format,
 396                                enum pipe_texture_target target,
 397                                unsigned sample_count,
 398                                unsigned usage)
 399 {
 400         unsigned retval = 0;
 401
 402         if (sample_count > 1 && sample_count != VC4_MAX_SAMPLES)
 403                 return FALSE;
 404
 405         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 406             !util_format_is_supported(format, usage)) {
 407                 return FALSE;
 408         }
 409
 410         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 411                 switch (format) {
 412                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 413                 case PIPE_FORMAT_R32G32B32_FLOAT:
 414                 case PIPE_FORMAT_R32G32_FLOAT:
 415                 case PIPE_FORMAT_R32_FLOAT:
 416                 case PIPE_FORMAT_R32G32B32A32_SNORM:
 417                 case PIPE_FORMAT_R32G32B32_SNORM:
 418                 case PIPE_FORMAT_R32G32_SNORM:
 419                 case PIPE_FORMAT_R32_SNORM:
 420                 case PIPE_FORMAT_R32G32B32A32_SSCALED:
 421                 case PIPE_FORMAT_R32G32B32_SSCALED:
 422                 case PIPE_FORMAT_R32G32_SSCALED:
 423                 case PIPE_FORMAT_R32_SSCALED:
 424                 case PIPE_FORMAT_R16G16B16A16_UNORM:
 425                 case PIPE_FORMAT_R16G16B16_UNORM:
 426                 case PIPE_FORMAT_R16G16_UNORM:
 427                 case PIPE_FORMAT_R16_UNORM:
 428                 case PIPE_FORMAT_R16G16B16A16_SNORM:
 429                 case PIPE_FORMAT_R16G16B16_SNORM:
 430                 case PIPE_FORMAT_R16G16_SNORM:
 431                 case PIPE_FORMAT_R16_SNORM:
 432                 case PIPE_FORMAT_R16G16B16A16_USCALED:
 433                 case PIPE_FORMAT_R16G16B16_USCALED:
 434                 case PIPE_FORMAT_R16G16_USCALED:
 435                 case PIPE_FORMAT_R16_USCALED:
 436                 case PIPE_FORMAT_R16G16B16A16_SSCALED:
 437                 case PIPE_FORMAT_R16G16B16_SSCALED:
 438                 case PIPE_FORMAT_R16G16_SSCALED:
 439                 case PIPE_FORMAT_R16_SSCALED:
 440                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 441                 case PIPE_FORMAT_R8G8B8_UNORM:
 442                 case PIPE_FORMAT_R8G8_UNORM:
 443                 case PIPE_FORMAT_R8_UNORM:
 444                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 445                 case PIPE_FORMAT_R8G8B8_SNORM:
 446                 case PIPE_FORMAT_R8G8_SNORM:
 447                 case PIPE_FORMAT_R8_SNORM:
 448                 case PIPE_FORMAT_R8G8B8A8_USCALED:
 449                 case PIPE_FORMAT_R8G8B8_USCALED:
 450                 case PIPE_FORMAT_R8G8_USCALED:
 451                 case PIPE_FORMAT_R8_USCALED:
 452                 case PIPE_FORMAT_R8G8B8A8_SSCALED:
 453                 case PIPE_FORMAT_R8G8B8_SSCALED:
 454                 case PIPE_FORMAT_R8G8_SSCALED:
 455                 case PIPE_FORMAT_R8_SSCALED:
 456                         retval |= PIPE_BIND_VERTEX_BUFFER;
 457                         break;
 458                 default:
 459                         break;
 460                 }
 461         }
 462
 463         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 464             vc4_rt_format_supported(format)) {
 465                 retval |= PIPE_BIND_RENDER_TARGET;
 466         }
 467
 468         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 469             vc4_tex_format_supported(format)) {
 470                 retval |= PIPE_BIND_SAMPLER_VIEW;
 471         }
 472
 473         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 474             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 475              format == PIPE_FORMAT_X8Z24_UNORM)) {
 476                 retval |= PIPE_BIND_DEPTH_STENCIL;
 477         }
 478
 479         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 480             (format == PIPE_FORMAT_I8_UINT ||
 481              format == PIPE_FORMAT_I16_UINT)) {
 482                 retval |= PIPE_BIND_INDEX_BUFFER;
 483         }
 484
 485         if (usage & PIPE_BIND_TRANSFER_READ)
 486                 retval |= PIPE_BIND_TRANSFER_READ;
 487         if (usage & PIPE_BIND_TRANSFER_WRITE)
 488                 retval |= PIPE_BIND_TRANSFER_WRITE;
 489
 490 #if 0
 491         if (retval != usage) {
 492                 fprintf(stderr,
 493                         "not supported: format=%s, target=%d, sample_count=%d, "
 494                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 495                         target, sample_count, usage, retval);
 496         }
 497 #endif
 498
 499         return retval == usage;
 500 }
 501
 502 static bool
 503 vc4_supports_branches(struct vc4_screen *screen)
 504 {
 505 #if USE_VC4_SIMULATOR
 506         return true;
 507 #endif
 508
 509         struct drm_vc4_get_param p = {
 510                 .param = DRM_VC4_PARAM_SUPPORTS_BRANCHES,
 511         };
 512         int ret = drmIoctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &p);
 513
 514         if (ret != 0)
 515                 return false;
 516
 517         return p.value;
 518 }
 519
 520 static bool
 521 vc4_get_chip_info(struct vc4_screen *screen)
 522 {
 523 #if USE_VC4_SIMULATOR
 524         screen->v3d_ver = 21;
 525         return true;
 526 #endif
 527
 528         struct drm_vc4_get_param ident0 = {
 529                 .param = DRM_VC4_PARAM_V3D_IDENT0,
 530         };
 531         struct drm_vc4_get_param ident1 = {
 532                 .param = DRM_VC4_PARAM_V3D_IDENT1,
 533         };
 534         int ret;
 535
 536         ret = drmIoctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident0);
 537         if (ret != 0) {
 538                 if (errno == EINVAL) {
 539                         /* Backwards compatibility with 2835 kernels which
 540                          * only do V3D 2.1.
 541                          */
 542                         screen->v3d_ver = 21;
 543                         return true;
 544                 } else {
 545                         fprintf(stderr, "Couldn't get V3D IDENT0: %s\n",
 546                                 strerror(errno));
 547                         return false;
 548                 }
 549         }
 550         ret = drmIoctl(screen->fd, DRM_IOCTL_VC4_GET_PARAM, &ident1);
 551         if (ret != 0) {
 552                 fprintf(stderr, "Couldn't get V3D IDENT1: %s\n",
 553                         strerror(errno));
 554                 return false;
 555         }
 556
 557         uint32_t major = (ident0.value >> 24) & 0xff;
 558         uint32_t minor = (ident1.value >> 0) & 0xf;
 559         screen->v3d_ver = major * 10 + minor;
 560
 561         if (screen->v3d_ver != 21) {
 562                 fprintf(stderr,
 563                         "V3D %d.%d not supported by this version of Mesa.\n",
 564                         screen->v3d_ver / 10,
 565                         screen->v3d_ver % 10);
 566                 return false;
 567         }
 568
 569         return true;
 570 }
 571
 572 struct pipe_screen *
 573 vc4_screen_create(int fd)
 574 {
 575         struct vc4_screen *screen = rzalloc(NULL, struct vc4_screen);
 576         struct pipe_screen *pscreen;
 577
 578         pscreen = &screen->base;
 579
 580         pscreen->destroy = vc4_screen_destroy;
 581         pscreen->get_param = vc4_screen_get_param;
 582         pscreen->get_paramf = vc4_screen_get_paramf;
 583         pscreen->get_shader_param = vc4_screen_get_shader_param;
 584         pscreen->context_create = vc4_context_create;
 585         pscreen->is_format_supported = vc4_screen_is_format_supported;
 586
 587         screen->fd = fd;
 588         list_inithead(&screen->bo_cache.time_list);
 589
 590         if (vc4_supports_branches(screen))
 591                 screen->has_control_flow = true;
 592
 593         if (!vc4_get_chip_info(screen))
 594                 goto fail;
 595
 596         vc4_fence_init(screen);
 597
 598         vc4_debug = debug_get_option_vc4_debug();
 599         if (vc4_debug & VC4_DEBUG_SHADERDB)
 600                 vc4_debug |= VC4_DEBUG_NORAST;
 601
 602 #if USE_VC4_SIMULATOR
 603         vc4_simulator_init(screen);
 604 #endif
 605
 606         vc4_resource_screen_init(pscreen);
 607
 608         pscreen->get_name = vc4_screen_get_name;
 609         pscreen->get_vendor = vc4_screen_get_vendor;
 610         pscreen->get_device_vendor = vc4_screen_get_vendor;
 611
 612         return pscreen;
 613
 614 fail:
 615         close(fd);
 616         ralloc_free(pscreen);
 617         return NULL;
 618 }
 619
 620 boolean
 621 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 622                          struct vc4_bo *bo,
 623                          unsigned stride,
 624                          struct winsys_handle *whandle)
 625 {
 626         whandle->stride = stride;
 627
 628         /* If we're passing some reference to our BO out to some other part of
 629          * the system, then we can't do any optimizations about only us being
 630          * the ones seeing it (like BO caching or shadow update avoidance).
 631          */
 632         bo->private = false;
 633
 634         switch (whandle->type) {
 635         case DRM_API_HANDLE_TYPE_SHARED:
 636                 return vc4_bo_flink(bo, &whandle->handle);
 637         case DRM_API_HANDLE_TYPE_KMS:
 638                 whandle->handle = bo->handle;
 639                 return TRUE;
 640         case DRM_API_HANDLE_TYPE_FD:
 641                 whandle->handle = vc4_bo_get_dmabuf(bo);
 642                 return whandle->handle != -1;
 643         }
 644
 645         return FALSE;
 646 }
 647
 648 struct vc4_bo *
 649 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 650                           struct winsys_handle *whandle)
 651 {
 652         struct vc4_screen *screen = vc4_screen(pscreen);
 653
 654         if (whandle->offset != 0) {
 655                 fprintf(stderr,
 656                         "Attempt to import unsupported winsys offset %u\n",
 657                         whandle->offset);
 658                 return NULL;
 659         }
 660
 661         switch (whandle->type) {
 662         case DRM_API_HANDLE_TYPE_SHARED:
 663                 return vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 664         case DRM_API_HANDLE_TYPE_FD:
 665                 return vc4_bo_open_dmabuf(screen, whandle->handle, whandle->stride);
 666         default:
 667                 fprintf(stderr,
 668                         "Attempt to import unsupported handle type %d\n",
 669                         whandle->type);
 670                 return NULL;
 671         }
 672 }