src/gallium/drivers/ilo/ilo_screen.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the 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
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "pipe/p_state.h"
  29 #include "os/os_misc.h"
  30 #include "util/u_format_s3tc.h"
  31 #include "vl/vl_decoder.h"
  32 #include "vl/vl_video_buffer.h"
  33 #include "genhw/genhw.h" /* for GEN6_REG_TIMESTAMP */
  34 #include "core/intel_winsys.h"
  35
  36 #include "ilo_context.h"
  37 #include "ilo_format.h"
  38 #include "ilo_resource.h"
  39 #include "ilo_transfer.h" /* for ILO_TRANSFER_MAP_BUFFER_ALIGNMENT */
  40 #include "ilo_public.h"
  41 #include "ilo_screen.h"
  42
  43 struct pipe_fence_handle {
  44    struct pipe_reference reference;
  45    struct intel_bo *seqno_bo;
  46 };
  47
  48 static float
  49 ilo_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
  50 {
  51    switch (param) {
  52    case PIPE_CAPF_MAX_LINE_WIDTH:
  53       /* in U3.7, defined in 3DSTATE_SF */
  54       return 7.0f;
  55    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
  56       /* line width minus one, which is reserved for AA region */
  57       return 6.0f;
  58    case PIPE_CAPF_MAX_POINT_WIDTH:
  59       /* in U8.3, defined in 3DSTATE_SF */
  60       return 255.0f;
  61    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
  62       /* same as point width, as we ignore rasterizer->point_smooth */
  63       return 255.0f;
  64    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
  65       /* [2.0, 16.0], defined in SAMPLER_STATE */
  66       return 16.0f;
  67    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
  68       /* [-16.0, 16.0), defined in SAMPLER_STATE */
  69       return 15.0f;
  70    case PIPE_CAPF_GUARD_BAND_LEFT:
  71    case PIPE_CAPF_GUARD_BAND_TOP:
  72    case PIPE_CAPF_GUARD_BAND_RIGHT:
  73    case PIPE_CAPF_GUARD_BAND_BOTTOM:
  74       /* what are these for? */
  75       return 0.0f;
  76
  77    default:
  78       return 0.0f;
  79    }
  80 }
  81
  82 static int
  83 ilo_get_shader_param(struct pipe_screen *screen, unsigned shader,
  84                      enum pipe_shader_cap param)
  85 {
  86    switch (shader) {
  87    case PIPE_SHADER_FRAGMENT:
  88    case PIPE_SHADER_VERTEX:
  89    case PIPE_SHADER_GEOMETRY:
  90       break;
  91    default:
  92       return 0;
  93    }
  94
  95    switch (param) {
  96    /* the limits are copied from the classic driver */
  97    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
  98       return (shader == PIPE_SHADER_FRAGMENT) ? 1024 : 16384;
  99    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 100       return (shader == PIPE_SHADER_FRAGMENT) ? 1024 : 0;
 101    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 102       return (shader == PIPE_SHADER_FRAGMENT) ? 1024 : 0;
 103    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 104       return (shader == PIPE_SHADER_FRAGMENT) ? 1024 : 0;
 105    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 106       return UINT_MAX;
 107    case PIPE_SHADER_CAP_MAX_INPUTS:
 108    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 109       /* this is limited by how many attributes SF can remap */
 110       return 16;
 111    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 112       return 1024 * sizeof(float[4]);
 113    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 114       return ILO_MAX_CONST_BUFFERS;
 115    case PIPE_SHADER_CAP_MAX_TEMPS:
 116       return 256;
 117    case PIPE_SHADER_CAP_MAX_PREDS:
 118       return 0;
 119    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 120       return 1;
 121    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 122       return 0;
 123    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 124       return 0;
 125    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 126       return (shader == PIPE_SHADER_FRAGMENT) ? 0 : 1;
 127    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 128       return 1;
 129    case PIPE_SHADER_CAP_SUBROUTINES:
 130       return 0;
 131    case PIPE_SHADER_CAP_INTEGERS:
 132       return 1;
 133    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 134       return ILO_MAX_SAMPLERS;
 135    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 136       return ILO_MAX_SAMPLER_VIEWS;
 137    case PIPE_SHADER_CAP_PREFERRED_IR:
 138       return PIPE_SHADER_IR_TGSI;
 139    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 140       return 0;
 141    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 142       return 1;
 143    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 144       return 32;
 145
 146    default:
 147       return 0;
 148    }
 149 }
 150
 151 static int
 152 ilo_get_video_param(struct pipe_screen *screen,
 153                     enum pipe_video_profile profile,
 154                     enum pipe_video_entrypoint entrypoint,
 155                     enum pipe_video_cap param)
 156 {
 157    switch (param) {
 158    case PIPE_VIDEO_CAP_SUPPORTED:
 159       return vl_profile_supported(screen, profile, entrypoint);
 160    case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 161       return 1;
 162    case PIPE_VIDEO_CAP_MAX_WIDTH:
 163    case PIPE_VIDEO_CAP_MAX_HEIGHT:
 164       return vl_video_buffer_max_size(screen);
 165    case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 166       return PIPE_FORMAT_NV12;
 167    case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 168       return 1;
 169    case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 170       return 1;
 171    case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 172       return 0;
 173    case PIPE_VIDEO_CAP_MAX_LEVEL:
 174       return vl_level_supported(screen, profile);
 175    default:
 176       return 0;
 177    }
 178 }
 179
 180 static int
 181 ilo_get_compute_param(struct pipe_screen *screen,
 182                       enum pipe_shader_ir ir_type,
 183                       enum pipe_compute_cap param,
 184                       void *ret)
 185 {
 186    struct ilo_screen *is = ilo_screen(screen);
 187    union {
 188       const char *ir_target;
 189       uint64_t grid_dimension;
 190       uint64_t max_grid_size[3];
 191       uint64_t max_block_size[3];
 192       uint64_t max_threads_per_block;
 193       uint64_t max_global_size;
 194       uint64_t max_local_size;
 195       uint64_t max_private_size;
 196       uint64_t max_input_size;
 197       uint64_t max_mem_alloc_size;
 198       uint32_t max_clock_frequency;
 199       uint32_t max_compute_units;
 200       uint32_t images_supported;
 201       uint32_t subgroup_size;
 202       uint32_t address_bits;
 203    } val;
 204    const void *ptr;
 205    int size;
 206
 207    switch (param) {
 208    case PIPE_COMPUTE_CAP_IR_TARGET:
 209       val.ir_target = "ilog";
 210
 211       ptr = val.ir_target;
 212       size = strlen(val.ir_target) + 1;
 213       break;
 214    case PIPE_COMPUTE_CAP_GRID_DIMENSION:
 215       val.grid_dimension = ARRAY_SIZE(val.max_grid_size);
 216
 217       ptr = &val.grid_dimension;
 218       size = sizeof(val.grid_dimension);
 219       break;
 220    case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
 221       val.max_grid_size[0] = 0xffffffffu;
 222       val.max_grid_size[1] = 0xffffffffu;
 223       val.max_grid_size[2] = 0xffffffffu;
 224
 225       ptr = &val.max_grid_size;
 226       size = sizeof(val.max_grid_size);
 227       break;
 228    case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
 229       val.max_block_size[0] = 1024;
 230       val.max_block_size[1] = 1024;
 231       val.max_block_size[2] = 1024;
 232
 233       ptr = &val.max_block_size;
 234       size = sizeof(val.max_block_size);
 235       break;
 236
 237    case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
 238       val.max_threads_per_block = 1024;
 239
 240       ptr = &val.max_threads_per_block;
 241       size = sizeof(val.max_threads_per_block);
 242       break;
 243    case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
 244       /* \see ilo_max_resource_size */
 245       val.max_global_size = 1u << 31;
 246
 247       ptr = &val.max_global_size;
 248       size = sizeof(val.max_global_size);
 249       break;
 250    case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
 251       /* Shared Local Memory Size of INTERFACE_DESCRIPTOR_DATA */
 252       val.max_local_size = 64 * 1024;
 253
 254       ptr = &val.max_local_size;
 255       size = sizeof(val.max_local_size);
 256       break;
 257    case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
 258       /* scratch size */
 259       val.max_private_size = 12 * 1024;
 260
 261       ptr = &val.max_private_size;
 262       size = sizeof(val.max_private_size);
 263       break;
 264    case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
 265       val.max_input_size = 1024;
 266
 267       ptr = &val.max_input_size;
 268       size = sizeof(val.max_input_size);
 269       break;
 270    case PIPE_COMPUTE_CAP_ADDRESS_BITS:
 271       val.address_bits = 32;
 272       ptr = &val.address_bits;
 273       size = sizeof(val.address_bits);
 274       break;
 275    case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
 276       val.max_mem_alloc_size = 1u << 31;
 277
 278       ptr = &val.max_mem_alloc_size;
 279       size = sizeof(val.max_mem_alloc_size);
 280       break;
 281    case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
 282       val.max_clock_frequency = 1000;
 283
 284       ptr = &val.max_clock_frequency;
 285       size = sizeof(val.max_clock_frequency);
 286       break;
 287    case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
 288       val.max_compute_units = is->dev.eu_count;
 289
 290       ptr = &val.max_compute_units;
 291       size = sizeof(val.max_compute_units);
 292       break;
 293    case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
 294       val.images_supported = 1;
 295
 296       ptr = &val.images_supported;
 297       size = sizeof(val.images_supported);
 298       break;
 299    case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
 300       /* best case is actually SIMD32 */
 301       val.subgroup_size = 16;
 302
 303       ptr = &val.subgroup_size;
 304       size = sizeof(val.subgroup_size);
 305       break;
 306    default:
 307       ptr = NULL;
 308       size = 0;
 309       break;
 310    }
 311
 312    if (ret)
 313       memcpy(ret, ptr, size);
 314
 315    return size;
 316 }
 317
 318 static int
 319 ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
 320 {
 321    struct ilo_screen *is = ilo_screen(screen);
 322
 323    switch (param) {
 324    case PIPE_CAP_NPOT_TEXTURES:
 325    case PIPE_CAP_TWO_SIDED_STENCIL:
 326       return true;
 327    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 328       return 0; /* TODO */
 329    case PIPE_CAP_ANISOTROPIC_FILTER:
 330    case PIPE_CAP_POINT_SPRITE:
 331       return true;
 332    case PIPE_CAP_MAX_RENDER_TARGETS:
 333       return ILO_MAX_DRAW_BUFFERS;
 334    case PIPE_CAP_OCCLUSION_QUERY:
 335    case PIPE_CAP_QUERY_TIME_ELAPSED:
 336    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 337    case PIPE_CAP_TEXTURE_SWIZZLE: /* must be supported for shadow map */
 338       return true;
 339    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 340       /*
 341        * As defined in SURFACE_STATE, we have
 342        *
 343        *           Max WxHxD for 2D and CUBE     Max WxHxD for 3D
 344        *  GEN6           8192x8192x512            2048x2048x2048
 345        *  GEN7         16384x16384x2048           2048x2048x2048
 346        */
 347       return (ilo_dev_gen(&is->dev) >= ILO_GEN(7)) ? 15 : 14;
 348    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 349       return 12;
 350    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 351       return (ilo_dev_gen(&is->dev) >= ILO_GEN(7)) ? 15 : 14;
 352    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 353       return false;
 354    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 355    case PIPE_CAP_SM3:
 356       return true;
 357    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 358       if (ilo_dev_gen(&is->dev) >= ILO_GEN(7) && !is->dev.has_gen7_sol_reset)
 359          return 0;
 360       return ILO_MAX_SO_BUFFERS;
 361    case PIPE_CAP_PRIMITIVE_RESTART:
 362       return true;
 363    case PIPE_CAP_INDEP_BLEND_ENABLE:
 364    case PIPE_CAP_INDEP_BLEND_FUNC:
 365       return true;
 366    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 367       return (ilo_dev_gen(&is->dev) >= ILO_GEN(7.5)) ? 2048 : 512;
 368    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 369    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 370    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 371    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 372    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 373       return true;
 374    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 375       return false;
 376    case PIPE_CAP_TGSI_INSTANCEID:
 377    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 378       return true;
 379    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 380       return false;
 381    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 382       return true;
 383    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 384    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 385       return true;
 386    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 387    case PIPE_CAP_MIN_TEXEL_OFFSET:
 388       return -8;
 389    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 390    case PIPE_CAP_MAX_TEXEL_OFFSET:
 391       return 7;
 392    case PIPE_CAP_CONDITIONAL_RENDER:
 393    case PIPE_CAP_TEXTURE_BARRIER:
 394       return true;
 395    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 396       return ILO_MAX_SO_BINDINGS / ILO_MAX_SO_BUFFERS;
 397    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 398       return ILO_MAX_SO_BINDINGS;
 399    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 400       if (ilo_dev_gen(&is->dev) >= ILO_GEN(7))
 401          return is->dev.has_gen7_sol_reset;
 402       else
 403          return false; /* TODO */
 404    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 405       return false;
 406    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 407       return true;
 408    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 409       return false;
 410    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 411       return 140;
 412    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 413    case PIPE_CAP_USER_VERTEX_BUFFERS:
 414       return false;
 415    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 416    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 417    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 418       return false;
 419    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 420       return 2048;
 421    case PIPE_CAP_COMPUTE:
 422       return false; /* TODO */
 423    case PIPE_CAP_USER_INDEX_BUFFERS:
 424    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 425       return true;
 426    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 427       /* imposed by OWord (Dual) Block Read */
 428       return 16;
 429    case PIPE_CAP_START_INSTANCE:
 430       return true;
 431    case PIPE_CAP_QUERY_TIMESTAMP:
 432       return is->dev.has_timestamp;
 433    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 434       return false; /* TODO */
 435    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 436       return ILO_TRANSFER_MAP_BUFFER_ALIGNMENT;
 437    case PIPE_CAP_CUBE_MAP_ARRAY:
 438    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 439       return true;
 440    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 441       return 0;
 442    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 443       return 1;
 444    case PIPE_CAP_TGSI_TEXCOORD:
 445       return false;
 446    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 447    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 448       return true;
 449    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 450       return 0;
 451    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 452       /* a GEN6_SURFTYPE_BUFFER can have up to 2^27 elements */
 453       return 1 << 27;
 454    case PIPE_CAP_MAX_VIEWPORTS:
 455       return ILO_MAX_VIEWPORTS;
 456    case PIPE_CAP_ENDIANNESS:
 457       return PIPE_ENDIAN_LITTLE;
 458    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 459    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 460       return true;
 461    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 462    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 463    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 464    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 465    case PIPE_CAP_TEXTURE_GATHER_SM5:
 466       return 0;
 467    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 468    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 469    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 470       return true;
 471    case PIPE_CAP_FAKE_SW_MSAA:
 472    case PIPE_CAP_TEXTURE_QUERY_LOD:
 473    case PIPE_CAP_SAMPLE_SHADING:
 474    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 475    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 476    case PIPE_CAP_MAX_VERTEX_STREAMS:
 477    case PIPE_CAP_DRAW_INDIRECT:
 478    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 479    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 480    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 481    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 482    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 483    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 484    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 485    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 486    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 487    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 488    case PIPE_CAP_TGSI_TXQS:
 489    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 490    case PIPE_CAP_SHAREABLE_SHADERS:
 491    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 492    case PIPE_CAP_CLEAR_TEXTURE:
 493    case PIPE_CAP_DRAW_PARAMETERS:
 494    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 495    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 496    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 497    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 498    case PIPE_CAP_INVALIDATE_BUFFER:
 499    case PIPE_CAP_GENERATE_MIPMAP:
 500    case PIPE_CAP_STRING_MARKER:
 501    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 502    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 503    case PIPE_CAP_QUERY_MEMORY_INFO:
 504    case PIPE_CAP_PCI_GROUP:
 505    case PIPE_CAP_PCI_BUS:
 506    case PIPE_CAP_PCI_DEVICE:
 507    case PIPE_CAP_PCI_FUNCTION:
 508    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 509    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 510    case PIPE_CAP_CULL_DISTANCE:
 511    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 512    case PIPE_CAP_TGSI_VOTE:
 513    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 514    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 515    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 516       return 0;
 517
 518    case PIPE_CAP_VENDOR_ID:
 519       return 0x8086;
 520    case PIPE_CAP_DEVICE_ID:
 521       return is->dev.devid;
 522    case PIPE_CAP_ACCELERATED:
 523       return true;
 524    case PIPE_CAP_VIDEO_MEMORY: {
 525       /* Once a batch uses more than 75% of the maximum mappable size, we
 526        * assume that there's some fragmentation, and we start doing extra
 527        * flushing, etc.  That's the big cliff apps will care about.
 528        */
 529       const uint64_t gpu_memory = is->dev.aperture_total * 3 / 4;
 530       uint64_t system_memory;
 531
 532       if (!os_get_total_physical_memory(&system_memory))
 533          return 0;
 534
 535       return (int) (MIN2(gpu_memory, system_memory) >> 20);
 536    }
 537    case PIPE_CAP_UMA:
 538       return true;
 539    case PIPE_CAP_CLIP_HALFZ:
 540       return true;
 541    case PIPE_CAP_VERTEXID_NOBASE:
 542       return false;
 543    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 544       return true;
 545
 546    default:
 547       return 0;
 548    }
 549 }
 550
 551 static const char *
 552 ilo_get_vendor(struct pipe_screen *screen)
 553 {
 554    return "LunarG, Inc.";
 555 }
 556
 557 static const char *
 558 ilo_get_device_vendor(struct pipe_screen *screen)
 559 {
 560    return "Intel";
 561 }
 562
 563 static const char *
 564 ilo_get_name(struct pipe_screen *screen)
 565 {
 566    struct ilo_screen *is = ilo_screen(screen);
 567    const char *chipset = NULL;
 568
 569    if (gen_is_chv(is->dev.devid)) {
 570       chipset = "Intel(R) Cherryview";
 571    } else if (gen_is_bdw(is->dev.devid)) {
 572       /* this is likely wrong */
 573       if (gen_is_desktop(is->dev.devid))
 574          chipset = "Intel(R) Broadwell Desktop";
 575       else if (gen_is_mobile(is->dev.devid))
 576          chipset = "Intel(R) Broadwell Mobile";
 577       else if (gen_is_server(is->dev.devid))
 578          chipset = "Intel(R) Broadwell Server";
 579    } else if (gen_is_vlv(is->dev.devid)) {
 580       chipset = "Intel(R) Bay Trail";
 581    } else if (gen_is_hsw(is->dev.devid)) {
 582       if (gen_is_desktop(is->dev.devid))
 583          chipset = "Intel(R) Haswell Desktop";
 584       else if (gen_is_mobile(is->dev.devid))
 585          chipset = "Intel(R) Haswell Mobile";
 586       else if (gen_is_server(is->dev.devid))
 587          chipset = "Intel(R) Haswell Server";
 588    } else if (gen_is_ivb(is->dev.devid)) {
 589       if (gen_is_desktop(is->dev.devid))
 590          chipset = "Intel(R) Ivybridge Desktop";
 591       else if (gen_is_mobile(is->dev.devid))
 592          chipset = "Intel(R) Ivybridge Mobile";
 593       else if (gen_is_server(is->dev.devid))
 594          chipset = "Intel(R) Ivybridge Server";
 595    } else if (gen_is_snb(is->dev.devid)) {
 596       if (gen_is_desktop(is->dev.devid))
 597          chipset = "Intel(R) Sandybridge Desktop";
 598       else if (gen_is_mobile(is->dev.devid))
 599          chipset = "Intel(R) Sandybridge Mobile";
 600       else if (gen_is_server(is->dev.devid))
 601          chipset = "Intel(R) Sandybridge Server";
 602    }
 603
 604    if (!chipset)
 605       chipset = "Unknown Intel Chipset";
 606
 607    return chipset;
 608 }
 609
 610 static uint64_t
 611 ilo_get_timestamp(struct pipe_screen *screen)
 612 {
 613    struct ilo_screen *is = ilo_screen(screen);
 614    union {
 615       uint64_t val;
 616       uint32_t dw[2];
 617    } timestamp;
 618
 619    intel_winsys_read_reg(is->dev.winsys, GEN6_REG_TIMESTAMP, &timestamp.val);
 620
 621    /*
 622     * From the Ivy Bridge PRM, volume 1 part 3, page 107:
 623     *
 624     *     "Note: This timestamp register reflects the value of the PCU TSC.
 625     *      The PCU TSC counts 10ns increments; this timestamp reflects bits
 626     *      38:3 of the TSC (i.e. 80ns granularity, rolling over every 1.5
 627     *      hours)."
 628     *
 629     * However, it seems dw[0] is garbage and dw[1] contains the lower 32 bits
 630     * of the timestamp.  We will have to live with a timestamp that rolls over
 631     * every ~343 seconds.
 632     *
 633     * See also brw_get_timestamp().
 634     */
 635    return (uint64_t) timestamp.dw[1] * 80;
 636 }
 637
 638 static boolean
 639 ilo_is_format_supported(struct pipe_screen *screen,
 640                         enum pipe_format format,
 641                         enum pipe_texture_target target,
 642                         unsigned sample_count,
 643                         unsigned bindings)
 644 {
 645    struct ilo_screen *is = ilo_screen(screen);
 646    const struct ilo_dev *dev = &is->dev;
 647
 648    if (!util_format_is_supported(format, bindings))
 649       return false;
 650
 651    /* no MSAA support yet */
 652    if (sample_count > 1)
 653       return false;
 654
 655    if ((bindings & PIPE_BIND_DEPTH_STENCIL) &&
 656        !ilo_format_support_zs(dev, format))
 657       return false;
 658
 659    if ((bindings & PIPE_BIND_RENDER_TARGET) &&
 660        !ilo_format_support_rt(dev, format))
 661       return false;
 662
 663    if ((bindings & PIPE_BIND_SAMPLER_VIEW) &&
 664        !ilo_format_support_sampler(dev, format))
 665       return false;
 666
 667    if ((bindings & PIPE_BIND_VERTEX_BUFFER) &&
 668        !ilo_format_support_vb(dev, format))
 669       return false;
 670
 671    return true;
 672 }
 673
 674 static boolean
 675 ilo_is_video_format_supported(struct pipe_screen *screen,
 676                               enum pipe_format format,
 677                               enum pipe_video_profile profile,
 678                               enum pipe_video_entrypoint entrypoint)
 679 {
 680    return vl_video_buffer_is_format_supported(screen, format, profile, entrypoint);
 681 }
 682
 683 static void
 684 ilo_screen_fence_reference(struct pipe_screen *screen,
 685                            struct pipe_fence_handle **ptr,
 686                            struct pipe_fence_handle *fence)
 687 {
 688    struct pipe_fence_handle *old;
 689
 690    if (likely(ptr)) {
 691       old = *ptr;
 692       *ptr = fence;
 693    } else {
 694       old = NULL;
 695    }
 696
 697    STATIC_ASSERT(&((struct pipe_fence_handle *) NULL)->reference == NULL);
 698    if (pipe_reference(&old->reference, &fence->reference)) {
 699       intel_bo_unref(old->seqno_bo);
 700       FREE(old);
 701    }
 702 }
 703
 704 static boolean
 705 ilo_screen_fence_finish(struct pipe_screen *screen,
 706                         struct pipe_context *ctx,
 707                         struct pipe_fence_handle *fence,
 708                         uint64_t timeout)
 709 {
 710    const int64_t wait_timeout = (timeout > INT64_MAX) ? -1 : timeout;
 711    bool signaled;
 712
 713    signaled = (!fence->seqno_bo ||
 714          intel_bo_wait(fence->seqno_bo, wait_timeout) == 0);
 715
 716    /* XXX not thread safe */
 717    if (signaled && fence->seqno_bo) {
 718       intel_bo_unref(fence->seqno_bo);
 719       fence->seqno_bo = NULL;
 720    }
 721
 722    return signaled;
 723 }
 724
 725 /**
 726  * Create a fence for \p bo.  When \p bo is not NULL, it must be submitted
 727  * before waited on or checked.
 728  */
 729 struct pipe_fence_handle *
 730 ilo_screen_fence_create(struct pipe_screen *screen, struct intel_bo *bo)
 731 {
 732    struct pipe_fence_handle *fence;
 733
 734    fence = CALLOC_STRUCT(pipe_fence_handle);
 735    if (!fence)
 736       return NULL;
 737
 738    pipe_reference_init(&fence->reference, 1);
 739
 740    fence->seqno_bo = intel_bo_ref(bo);
 741
 742    return fence;
 743 }
 744
 745 static void
 746 ilo_screen_destroy(struct pipe_screen *screen)
 747 {
 748    struct ilo_screen *is = ilo_screen(screen);
 749
 750    intel_winsys_destroy(is->dev.winsys);
 751
 752    FREE(is);
 753 }
 754
 755 struct pipe_screen *
 756 ilo_screen_create(struct intel_winsys *ws)
 757 {
 758    struct ilo_screen *is;
 759
 760    ilo_debug_init("ILO_DEBUG");
 761
 762    is = CALLOC_STRUCT(ilo_screen);
 763    if (!is)
 764       return NULL;
 765
 766    if (!ilo_dev_init(&is->dev, ws)) {
 767       FREE(is);
 768       return NULL;
 769    }
 770
 771    util_format_s3tc_init();
 772
 773    is->base.destroy = ilo_screen_destroy;
 774    is->base.get_name = ilo_get_name;
 775    is->base.get_vendor = ilo_get_vendor;
 776    is->base.get_device_vendor = ilo_get_device_vendor;
 777    is->base.get_param = ilo_get_param;
 778    is->base.get_paramf = ilo_get_paramf;
 779    is->base.get_shader_param = ilo_get_shader_param;
 780    is->base.get_video_param = ilo_get_video_param;
 781    is->base.get_compute_param = ilo_get_compute_param;
 782
 783    is->base.get_timestamp = ilo_get_timestamp;
 784
 785    is->base.is_format_supported = ilo_is_format_supported;
 786    is->base.is_video_format_supported = ilo_is_video_format_supported;
 787
 788    is->base.flush_frontbuffer = NULL;
 789
 790    is->base.fence_reference = ilo_screen_fence_reference;
 791    is->base.fence_finish = ilo_screen_fence_finish;
 792
 793    is->base.get_driver_query_info = NULL;
 794
 795    ilo_init_context_functions(is);
 796    ilo_init_resource_functions(is);
 797
 798    return &is->base;
 799 }