src/gallium/drivers/etnaviv/etnaviv_screen.c

   1 /*
   2  * Copyright (c) 2012-2015 Etnaviv Project
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Wladimir J. van der Laan <laanwj@gmail.com>
  25  *    Christian Gmeiner <christian.gmeiner@gmail.com>
  26  */
  27
  28 #include "etnaviv_screen.h"
  29
  30 #include "hw/common.xml.h"
  31
  32 #include "etnaviv_compiler.h"
  33 #include "etnaviv_context.h"
  34 #include "etnaviv_debug.h"
  35 #include "etnaviv_fence.h"
  36 #include "etnaviv_format.h"
  37 #include "etnaviv_query.h"
  38 #include "etnaviv_resource.h"
  39 #include "etnaviv_translate.h"
  40
  41 #include "os/os_time.h"
  42 #include "util/u_math.h"
  43 #include "util/u_memory.h"
  44 #include "util/u_string.h"
  45
  46 #include "state_tracker/drm_driver.h"
  47
  48 #define ETNA_DRM_VERSION(major, minor) ((major) << 16 | (minor))
  49 #define ETNA_DRM_VERSION_FENCE_FD      ETNA_DRM_VERSION(1, 1)
  50
  51 static const struct debug_named_value debug_options[] = {
  52    {"dbg_msgs",       ETNA_DBG_MSGS, "Print debug messages"},
  53    {"frame_msgs",     ETNA_DBG_FRAME_MSGS, "Print frame messages"},
  54    {"resource_msgs",  ETNA_DBG_RESOURCE_MSGS, "Print resource messages"},
  55    {"compiler_msgs",  ETNA_DBG_COMPILER_MSGS, "Print compiler messages"},
  56    {"linker_msgs",    ETNA_DBG_LINKER_MSGS, "Print linker messages"},
  57    {"dump_shaders",   ETNA_DBG_DUMP_SHADERS, "Dump shaders"},
  58    {"no_ts",          ETNA_DBG_NO_TS, "Disable TS"},
  59    {"no_autodisable", ETNA_DBG_NO_AUTODISABLE, "Disable autodisable"},
  60    {"no_supertile",   ETNA_DBG_NO_SUPERTILE, "Disable supertiles"},
  61    {"no_early_z",     ETNA_DBG_NO_EARLY_Z, "Disable early z"},
  62    {"cflush_all",     ETNA_DBG_CFLUSH_ALL, "Flush every cash before state update"},
  63    {"msaa2x",         ETNA_DBG_MSAA_2X, "Force 2x msaa"},
  64    {"msaa4x",         ETNA_DBG_MSAA_4X, "Force 4x msaa"},
  65    {"flush_all",      ETNA_DBG_FLUSH_ALL, "Flush after every rendered primitive"},
  66    {"zero",           ETNA_DBG_ZERO, "Zero all resources after allocation"},
  67    {"draw_stall",     ETNA_DBG_DRAW_STALL, "Stall FE/PE after each rendered primitive"},
  68    {"shaderdb",       ETNA_DBG_SHADERDB, "Enable shaderdb output"},
  69    DEBUG_NAMED_VALUE_END
  70 };
  71
  72 DEBUG_GET_ONCE_FLAGS_OPTION(etna_mesa_debug, "ETNA_MESA_DEBUG", debug_options, 0)
  73 int etna_mesa_debug = 0;
  74
  75 static void
  76 etna_screen_destroy(struct pipe_screen *pscreen)
  77 {
  78    struct etna_screen *screen = etna_screen(pscreen);
  79
  80    if (screen->pipe)
  81       etna_pipe_del(screen->pipe);
  82
  83    if (screen->gpu)
  84       etna_gpu_del(screen->gpu);
  85
  86    if (screen->ro)
  87       FREE(screen->ro);
  88
  89    if (screen->dev)
  90       etna_device_del(screen->dev);
  91
  92    FREE(screen);
  93 }
  94
  95 static const char *
  96 etna_screen_get_name(struct pipe_screen *pscreen)
  97 {
  98    struct etna_screen *priv = etna_screen(pscreen);
  99    static char buffer[128];
 100
 101    util_snprintf(buffer, sizeof(buffer), "Vivante GC%x rev %04x", priv->model,
 102                  priv->revision);
 103
 104    return buffer;
 105 }
 106
 107 static const char *
 108 etna_screen_get_vendor(struct pipe_screen *pscreen)
 109 {
 110    return "etnaviv";
 111 }
 112
 113 static const char *
 114 etna_screen_get_device_vendor(struct pipe_screen *pscreen)
 115 {
 116    return "Vivante";
 117 }
 118
 119 static int
 120 etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 121 {
 122    struct etna_screen *screen = etna_screen(pscreen);
 123
 124    switch (param) {
 125    /* Supported features (boolean caps). */
 126    case PIPE_CAP_TWO_SIDED_STENCIL:
 127    case PIPE_CAP_ANISOTROPIC_FILTER:
 128    case PIPE_CAP_POINT_SPRITE:
 129    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 130    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 131    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 132    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 133    case PIPE_CAP_SM3:
 134    case PIPE_CAP_TEXTURE_BARRIER:
 135    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 136    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 137    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 138    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 139    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 140    case PIPE_CAP_TGSI_TEXCOORD:
 141    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 142       return 1;
 143    case PIPE_CAP_NATIVE_FENCE_FD:
 144       return screen->drm_version >= ETNA_DRM_VERSION_FENCE_FD;
 145
 146    /* Memory */
 147    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 148       return 256;
 149    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 150       return 4; /* XXX could easily be supported */
 151    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 152       return 120;
 153
 154    case PIPE_CAP_NPOT_TEXTURES:
 155       return true; /* VIV_FEATURE(priv->dev, chipMinorFeatures1,
 156                       NON_POWER_OF_TWO); */
 157
 158    case PIPE_CAP_PRIMITIVE_RESTART:
 159       return VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 160
 161    case PIPE_CAP_ENDIANNESS:
 162       return PIPE_ENDIAN_LITTLE; /* on most Viv hw this is configurable (feature
 163                                     ENDIANNESS_CONFIG) */
 164
 165    /* Unsupported features. */
 166    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 167    case PIPE_CAP_TEXTURE_SWIZZLE: /* XXX supported on gc2000 */
 168    case PIPE_CAP_COMPUTE: /* XXX supported on gc2000 */
 169    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: /* only one colorbuffer supported, so mixing makes no sense */
 170    case PIPE_CAP_CONDITIONAL_RENDER: /* no occlusion queries */
 171    case PIPE_CAP_TGSI_INSTANCEID: /* no idea, really */
 172    case PIPE_CAP_START_INSTANCE: /* instancing not supported AFAIK */
 173    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: /* instancing not supported AFAIK */
 174    case PIPE_CAP_SHADER_STENCIL_EXPORT: /* Fragment shader cannot export stencil value */
 175    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: /* no dual-source supported */
 176    case PIPE_CAP_TEXTURE_MULTISAMPLE: /* no texture multisample */
 177    case PIPE_CAP_TEXTURE_MIRROR_CLAMP: /* only mirrored repeat */
 178    case PIPE_CAP_INDEP_BLEND_ENABLE:
 179    case PIPE_CAP_INDEP_BLEND_FUNC:
 180    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 181    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 182    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 183    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 184    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: /* Don't skip strict max uniform limit check */
 185    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 186    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 187    case PIPE_CAP_USER_VERTEX_BUFFERS:
 188    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 189    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 190    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 191    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES: /* TODO: test me out with piglit */
 192    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 193    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 194    case PIPE_CAP_TEXTURE_GATHER_SM5:
 195    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 196    case PIPE_CAP_FAKE_SW_MSAA:
 197    case PIPE_CAP_TEXTURE_QUERY_LOD:
 198    case PIPE_CAP_SAMPLE_SHADING:
 199    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 200    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 201    case PIPE_CAP_DRAW_INDIRECT:
 202    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 203    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 204    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 205    case PIPE_CAP_CLIP_HALFZ:
 206    case PIPE_CAP_VERTEXID_NOBASE:
 207    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 208    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 209    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 210    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 211    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 212    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 213    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 214    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 215    case PIPE_CAP_TGSI_TXQS:
 216    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 217    case PIPE_CAP_SHAREABLE_SHADERS:
 218    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 219    case PIPE_CAP_CLEAR_TEXTURE:
 220    case PIPE_CAP_DRAW_PARAMETERS:
 221    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 222    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 223    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 224    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 225    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 226    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 227    case PIPE_CAP_INVALIDATE_BUFFER:
 228    case PIPE_CAP_GENERATE_MIPMAP:
 229    case PIPE_CAP_STRING_MARKER:
 230    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 231    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 232    case PIPE_CAP_QUERY_MEMORY_INFO:
 233    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 234    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 235    case PIPE_CAP_CULL_DISTANCE:
 236    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 237    case PIPE_CAP_TGSI_VOTE:
 238    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 239    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 240    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 241    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 242    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 243    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 244    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 245    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 246    case PIPE_CAP_TGSI_FS_FBFETCH:
 247    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 248    case PIPE_CAP_DOUBLES:
 249    case PIPE_CAP_INT64:
 250    case PIPE_CAP_INT64_DIVMOD:
 251    case PIPE_CAP_TGSI_TEX_TXF_LZ:
 252    case PIPE_CAP_TGSI_CLOCK:
 253    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 254    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 255    case PIPE_CAP_TGSI_BALLOT:
 256    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 257    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 258       return 0;
 259
 260    /* Stream output. */
 261    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 262    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 263    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 264    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 265       return 0;
 266
 267    /* Geometry shader output, unsupported. */
 268    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 269    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 270    case PIPE_CAP_MAX_VERTEX_STREAMS:
 271       return 0;
 272
 273    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 274       return 128;
 275
 276    /* Texturing. */
 277    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 278    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 279    {
 280       int log2_max_tex_size = util_last_bit(screen->specs.max_texture_size);
 281       assert(log2_max_tex_size > 0);
 282       return log2_max_tex_size;
 283    }
 284    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: /* 3D textures not supported - fake it */
 285       return 5;
 286    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 287       return 0;
 288    case PIPE_CAP_CUBE_MAP_ARRAY:
 289       return 0;
 290    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 291    case PIPE_CAP_MIN_TEXEL_OFFSET:
 292       return -8;
 293    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 294    case PIPE_CAP_MAX_TEXEL_OFFSET:
 295       return 7;
 296    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 297       return 0;
 298    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 299       return 65536;
 300
 301    /* Render targets. */
 302    case PIPE_CAP_MAX_RENDER_TARGETS:
 303       return 1;
 304
 305    /* Viewports and scissors. */
 306    case PIPE_CAP_MAX_VIEWPORTS:
 307       return 1;
 308
 309    /* Timer queries. */
 310    case PIPE_CAP_QUERY_TIME_ELAPSED:
 311    case PIPE_CAP_OCCLUSION_QUERY:
 312       return 0;
 313    case PIPE_CAP_QUERY_TIMESTAMP:
 314       return 1;
 315    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 316       return 0;
 317
 318    /* Preferences */
 319    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 320       return 0;
 321
 322    case PIPE_CAP_PCI_GROUP:
 323    case PIPE_CAP_PCI_BUS:
 324    case PIPE_CAP_PCI_DEVICE:
 325    case PIPE_CAP_PCI_FUNCTION:
 326       return 0;
 327    case PIPE_CAP_VENDOR_ID:
 328    case PIPE_CAP_DEVICE_ID:
 329       return 0xFFFFFFFF;
 330    case PIPE_CAP_ACCELERATED:
 331       return 1;
 332    case PIPE_CAP_VIDEO_MEMORY:
 333       return 0;
 334    case PIPE_CAP_UMA:
 335       return 1;
 336    }
 337
 338    debug_printf("unknown param %d", param);
 339    return 0;
 340 }
 341
 342 static float
 343 etna_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 344 {
 345    switch (param) {
 346    case PIPE_CAPF_MAX_LINE_WIDTH:
 347    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 348    case PIPE_CAPF_MAX_POINT_WIDTH:
 349    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 350       return 8192.0f;
 351    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 352       return 16.0f;
 353    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 354       return 16.0f;
 355    case PIPE_CAPF_GUARD_BAND_LEFT:
 356    case PIPE_CAPF_GUARD_BAND_TOP:
 357    case PIPE_CAPF_GUARD_BAND_RIGHT:
 358    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 359       return 0.0f;
 360    }
 361
 362    debug_printf("unknown paramf %d", param);
 363    return 0;
 364 }
 365
 366 static int
 367 etna_screen_get_shader_param(struct pipe_screen *pscreen,
 368                              enum pipe_shader_type shader,
 369                              enum pipe_shader_cap param)
 370 {
 371    struct etna_screen *screen = etna_screen(pscreen);
 372
 373    switch (shader) {
 374    case PIPE_SHADER_FRAGMENT:
 375    case PIPE_SHADER_VERTEX:
 376       break;
 377    case PIPE_SHADER_COMPUTE:
 378    case PIPE_SHADER_GEOMETRY:
 379    case PIPE_SHADER_TESS_CTRL:
 380    case PIPE_SHADER_TESS_EVAL:
 381       return 0;
 382    default:
 383       DBG("unknown shader type %d", shader);
 384       return 0;
 385    }
 386
 387    switch (param) {
 388    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 389    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 390    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 391    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 392       return ETNA_MAX_TOKENS;
 393    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 394       return ETNA_MAX_DEPTH; /* XXX */
 395    case PIPE_SHADER_CAP_MAX_INPUTS:
 396       /* Maximum number of inputs for the vertex shader is the number
 397        * of vertex elements - each element defines one vertex shader
 398        * input register.  For the fragment shader, this is the number
 399        * of varyings. */
 400       return shader == PIPE_SHADER_FRAGMENT ? screen->specs.max_varyings
 401                                             : screen->specs.vertex_max_elements;
 402    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 403       return 16; /* see VIVS_VS_OUTPUT */
 404    case PIPE_SHADER_CAP_MAX_TEMPS:
 405       return 64; /* Max native temporaries. */
 406    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 407       return 1;
 408    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 409       return 1;
 410    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 411    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 412    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 413    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 414       return 1;
 415    case PIPE_SHADER_CAP_SUBROUTINES:
 416       return 0;
 417    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 418       return VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 419    case PIPE_SHADER_CAP_INTEGERS:
 420       return 0;
 421    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 422    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 423       return shader == PIPE_SHADER_FRAGMENT
 424                 ? screen->specs.fragment_sampler_count
 425                 : screen->specs.vertex_sampler_count;
 426    case PIPE_SHADER_CAP_PREFERRED_IR:
 427       return PIPE_SHADER_IR_TGSI;
 428    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 429       return 4096;
 430    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 431    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 432    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 433    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 434       return false;
 435    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 436       return 0;
 437    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 438       return 32;
 439    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 440    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 441    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 442    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 443       return 0;
 444    }
 445
 446    debug_printf("unknown shader param %d", param);
 447    return 0;
 448 }
 449
 450 static uint64_t
 451 etna_screen_get_timestamp(struct pipe_screen *pscreen)
 452 {
 453    return os_time_get_nano();
 454 }
 455
 456 static bool
 457 gpu_supports_texure_format(struct etna_screen *screen, uint32_t fmt)
 458 {
 459    if (fmt == TEXTURE_FORMAT_ETC1)
 460       return VIV_FEATURE(screen, chipFeatures, ETC1_TEXTURE_COMPRESSION);
 461
 462    if (fmt >= TEXTURE_FORMAT_DXT1 && fmt <= TEXTURE_FORMAT_DXT4_DXT5)
 463       return VIV_FEATURE(screen, chipFeatures, DXT_TEXTURE_COMPRESSION);
 464
 465    return true;
 466 }
 467
 468 static boolean
 469 etna_screen_is_format_supported(struct pipe_screen *pscreen,
 470                                 enum pipe_format format,
 471                                 enum pipe_texture_target target,
 472                                 unsigned sample_count, unsigned usage)
 473 {
 474    struct etna_screen *screen = etna_screen(pscreen);
 475    unsigned allowed = 0;
 476
 477    if (target != PIPE_BUFFER &&
 478        target != PIPE_TEXTURE_1D &&
 479        target != PIPE_TEXTURE_2D &&
 480        target != PIPE_TEXTURE_3D &&
 481        target != PIPE_TEXTURE_CUBE &&
 482        target != PIPE_TEXTURE_RECT)
 483       return FALSE;
 484
 485    if (usage & PIPE_BIND_RENDER_TARGET) {
 486       /* if render target, must be RS-supported format */
 487       if (translate_rs_format(format) != ETNA_NO_MATCH) {
 488          /* Validate MSAA; number of samples must be allowed, and render target
 489           * must have MSAA'able format. */
 490          if (sample_count > 1) {
 491             if (translate_samples_to_xyscale(sample_count, NULL, NULL, NULL) &&
 492                 translate_msaa_format(format) != ETNA_NO_MATCH) {
 493                allowed |= PIPE_BIND_RENDER_TARGET;
 494             }
 495          } else {
 496             allowed |= PIPE_BIND_RENDER_TARGET;
 497          }
 498       }
 499    }
 500
 501    if (usage & PIPE_BIND_DEPTH_STENCIL) {
 502       if (translate_depth_format(format) != ETNA_NO_MATCH)
 503          allowed |= PIPE_BIND_DEPTH_STENCIL;
 504    }
 505
 506    if (usage & PIPE_BIND_SAMPLER_VIEW) {
 507       uint32_t fmt = translate_texture_format(format);
 508
 509       if (!gpu_supports_texure_format(screen, fmt))
 510          fmt = ETNA_NO_MATCH;
 511
 512       if (sample_count < 2 && fmt != ETNA_NO_MATCH)
 513          allowed |= PIPE_BIND_SAMPLER_VIEW;
 514    }
 515
 516    if (usage & PIPE_BIND_VERTEX_BUFFER) {
 517       if (translate_vertex_format_type(format) != ETNA_NO_MATCH)
 518          allowed |= PIPE_BIND_VERTEX_BUFFER;
 519    }
 520
 521    if (usage & PIPE_BIND_INDEX_BUFFER) {
 522       /* must be supported index format */
 523       if (format == PIPE_FORMAT_I8_UINT || format == PIPE_FORMAT_I16_UINT ||
 524           (format == PIPE_FORMAT_I32_UINT &&
 525            VIV_FEATURE(screen, chipFeatures, 32_BIT_INDICES))) {
 526          allowed |= PIPE_BIND_INDEX_BUFFER;
 527       }
 528    }
 529
 530    /* Always allowed */
 531    allowed |=
 532       usage & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
 533
 534    if (usage != allowed) {
 535       DBG("not supported: format=%s, target=%d, sample_count=%d, "
 536           "usage=%x, allowed=%x",
 537           util_format_name(format), target, sample_count, usage, allowed);
 538    }
 539
 540    return usage == allowed;
 541 }
 542
 543 static boolean
 544 etna_get_specs(struct etna_screen *screen)
 545 {
 546    uint64_t val;
 547    uint32_t instruction_count;
 548
 549    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_INSTRUCTION_COUNT, &val)) {
 550       DBG("could not get ETNA_GPU_INSTRUCTION_COUNT");
 551       goto fail;
 552    }
 553    instruction_count = val;
 554
 555    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE,
 556                           &val)) {
 557       DBG("could not get ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE");
 558       goto fail;
 559    }
 560    screen->specs.vertex_output_buffer_size = val;
 561
 562    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_CACHE_SIZE, &val)) {
 563       DBG("could not get ETNA_GPU_VERTEX_CACHE_SIZE");
 564       goto fail;
 565    }
 566    screen->specs.vertex_cache_size = val;
 567
 568    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_SHADER_CORE_COUNT, &val)) {
 569       DBG("could not get ETNA_GPU_SHADER_CORE_COUNT");
 570       goto fail;
 571    }
 572    screen->specs.shader_core_count = val;
 573
 574    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_STREAM_COUNT, &val)) {
 575       DBG("could not get ETNA_GPU_STREAM_COUNT");
 576       goto fail;
 577    }
 578    screen->specs.stream_count = val;
 579
 580    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REGISTER_MAX, &val)) {
 581       DBG("could not get ETNA_GPU_REGISTER_MAX");
 582       goto fail;
 583    }
 584    screen->specs.max_registers = val;
 585
 586    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_PIXEL_PIPES, &val)) {
 587       DBG("could not get ETNA_GPU_PIXEL_PIPES");
 588       goto fail;
 589    }
 590    screen->specs.pixel_pipes = val;
 591
 592    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_NUM_CONSTANTS, &val)) {
 593       DBG("could not get %s", "ETNA_GPU_NUM_CONSTANTS");
 594       goto fail;
 595    }
 596    if (val == 0) {
 597       fprintf(stderr, "Warning: zero num constants (update kernel?)\n");
 598       val = 168;
 599    }
 600    screen->specs.num_constants = val;
 601
 602    screen->specs.can_supertile =
 603       VIV_FEATURE(screen, chipMinorFeatures0, SUPER_TILED);
 604    screen->specs.bits_per_tile =
 605       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 2 : 4;
 606    screen->specs.ts_clear_value =
 607       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 0x55555555
 608                                                            : 0x11111111;
 609
 610    /* vertex and fragment samplers live in one address space */
 611    screen->specs.vertex_sampler_offset = 8;
 612    screen->specs.fragment_sampler_count = 8;
 613    screen->specs.vertex_sampler_count = 4;
 614    screen->specs.vs_need_z_div =
 615       screen->model < 0x1000 && screen->model != 0x880;
 616    screen->specs.has_sin_cos_sqrt =
 617       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 618    screen->specs.has_sign_floor_ceil =
 619       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SIGN_FLOOR_CEIL);
 620    screen->specs.has_shader_range_registers =
 621       screen->model >= 0x1000 || screen->model == 0x880;
 622    screen->specs.npot_tex_any_wrap =
 623       VIV_FEATURE(screen, chipMinorFeatures1, NON_POWER_OF_TWO);
 624    screen->specs.has_new_sin_cos =
 625       VIV_FEATURE(screen, chipMinorFeatures3, HAS_FAST_TRANSCENDENTALS);
 626
 627    if (VIV_FEATURE(screen, chipMinorFeatures3, INSTRUCTION_CACHE)) {
 628       /* GC3000 - this core is capable of loading shaders from
 629        * memory. It can also run shaders from registers, as a fallback, but
 630        * "max_instructions" does not have the correct value. It has place for
 631        * 2*256 instructions just like GC2000, but the offsets are slightly
 632        * different.
 633        */
 634       screen->specs.vs_offset = 0xC000;
 635       /* State 08000-0C000 mirrors 0C000-0E000, and the Vivante driver uses
 636        * this mirror for writing PS instructions, probably safest to do the
 637        * same.
 638        */
 639       screen->specs.ps_offset = 0x8000 + 0x1000;
 640       screen->specs.max_instructions = 256;
 641    } else {
 642       if (instruction_count > 256) { /* unified instruction memory? */
 643          screen->specs.vs_offset = 0xC000;
 644          screen->specs.ps_offset = 0xD000; /* like vivante driver */
 645          screen->specs.max_instructions = 256;
 646       } else {
 647          screen->specs.vs_offset = 0x4000;
 648          screen->specs.ps_offset = 0x6000;
 649          screen->specs.max_instructions = instruction_count / 2;
 650       }
 651    }
 652
 653    if (VIV_FEATURE(screen, chipMinorFeatures1, HALTI0)) {
 654       screen->specs.max_varyings = 12;
 655       screen->specs.vertex_max_elements = 16;
 656    } else {
 657       screen->specs.max_varyings = 8;
 658       /* Etna_viv documentation seems confused over the correct value
 659        * here so choose the lower to be safe: HALTI0 says 16 i.s.o.
 660        * 10, but VERTEX_ELEMENT_CONFIG register says 16 i.s.o. 12. */
 661       screen->specs.vertex_max_elements = 10;
 662    }
 663
 664    /* Etna_viv documentation does not indicate where varyings above 8 are
 665     * stored. Moreover, if we are passed more than 8 varyings, we will
 666     * walk off the end of some arrays. Limit the maximum number of varyings. */
 667    if (screen->specs.max_varyings > ETNA_NUM_VARYINGS)
 668       screen->specs.max_varyings = ETNA_NUM_VARYINGS;
 669
 670    /* from QueryShaderCaps in kernel driver */
 671    if (screen->model < chipModel_GC4000) {
 672       screen->specs.max_vs_uniforms = 168;
 673       screen->specs.max_ps_uniforms = 64;
 674    } else {
 675       screen->specs.max_vs_uniforms = 256;
 676       screen->specs.max_ps_uniforms = 256;
 677    }
 678
 679    screen->specs.max_texture_size =
 680       VIV_FEATURE(screen, chipMinorFeatures0, TEXTURE_8K) ? 8192 : 2048;
 681    screen->specs.max_rendertarget_size =
 682       VIV_FEATURE(screen, chipMinorFeatures0, RENDERTARGET_8K) ? 8192 : 2048;
 683
 684    screen->specs.single_buffer = VIV_FEATURE(screen, chipMinorFeatures4, SINGLE_BUFFER);
 685    if (screen->specs.single_buffer)
 686       DBG("etnaviv: Single buffer mode enabled with %d pixel pipes\n", screen->specs.pixel_pipes);
 687
 688    return true;
 689
 690 fail:
 691    return false;
 692 }
 693
 694 boolean
 695 etna_screen_bo_get_handle(struct pipe_screen *pscreen, struct etna_bo *bo,
 696                           unsigned stride, struct winsys_handle *whandle)
 697 {
 698    whandle->stride = stride;
 699
 700    if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
 701       return etna_bo_get_name(bo, &whandle->handle) == 0;
 702    } else if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
 703       whandle->handle = etna_bo_handle(bo);
 704       return TRUE;
 705    } else if (whandle->type == DRM_API_HANDLE_TYPE_FD) {
 706       whandle->handle = etna_bo_dmabuf(bo);
 707       return TRUE;
 708    } else {
 709       return FALSE;
 710    }
 711 }
 712
 713 struct etna_bo *
 714 etna_screen_bo_from_handle(struct pipe_screen *pscreen,
 715                            struct winsys_handle *whandle, unsigned *out_stride)
 716 {
 717    struct etna_screen *screen = etna_screen(pscreen);
 718    struct etna_bo *bo;
 719
 720    if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
 721       bo = etna_bo_from_name(screen->dev, whandle->handle);
 722    } else if (whandle->type == DRM_API_HANDLE_TYPE_FD) {
 723       bo = etna_bo_from_dmabuf(screen->dev, whandle->handle);
 724    } else {
 725       DBG("Attempt to import unsupported handle type %d", whandle->type);
 726       return NULL;
 727    }
 728
 729    if (!bo) {
 730       DBG("ref name 0x%08x failed", whandle->handle);
 731       return NULL;
 732    }
 733
 734    *out_stride = whandle->stride;
 735
 736    return bo;
 737 }
 738
 739 struct pipe_screen *
 740 etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
 741                    struct renderonly *ro)
 742 {
 743    struct etna_screen *screen = CALLOC_STRUCT(etna_screen);
 744    struct pipe_screen *pscreen;
 745    drmVersionPtr version;
 746    uint64_t val;
 747
 748    if (!screen)
 749       return NULL;
 750
 751    pscreen = &screen->base;
 752    screen->dev = dev;
 753    screen->gpu = gpu;
 754    screen->ro = renderonly_dup(ro);
 755
 756    if (!screen->ro) {
 757       DBG("could not create renderonly object");
 758       goto fail;
 759    }
 760
 761    version = drmGetVersion(screen->ro->gpu_fd);
 762    screen->drm_version = ETNA_DRM_VERSION(version->version_major,
 763                                           version->version_minor);
 764    drmFreeVersion(version);
 765
 766    etna_mesa_debug = debug_get_option_etna_mesa_debug();
 767
 768    /* Disable autodisable for correct rendering with TS */
 769    etna_mesa_debug |= ETNA_DBG_NO_AUTODISABLE;
 770
 771    screen->pipe = etna_pipe_new(gpu, ETNA_PIPE_3D);
 772    if (!screen->pipe) {
 773       DBG("could not create 3d pipe");
 774       goto fail;
 775    }
 776
 777    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_MODEL, &val)) {
 778       DBG("could not get ETNA_GPU_MODEL");
 779       goto fail;
 780    }
 781    screen->model = val;
 782
 783    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REVISION, &val)) {
 784       DBG("could not get ETNA_GPU_REVISION");
 785       goto fail;
 786    }
 787    screen->revision = val;
 788
 789    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_0, &val)) {
 790       DBG("could not get ETNA_GPU_FEATURES_0");
 791       goto fail;
 792    }
 793    screen->features[0] = val;
 794
 795    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_1, &val)) {
 796       DBG("could not get ETNA_GPU_FEATURES_1");
 797       goto fail;
 798    }
 799    screen->features[1] = val;
 800
 801    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_2, &val)) {
 802       DBG("could not get ETNA_GPU_FEATURES_2");
 803       goto fail;
 804    }
 805    screen->features[2] = val;
 806
 807    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_3, &val)) {
 808       DBG("could not get ETNA_GPU_FEATURES_3");
 809       goto fail;
 810    }
 811    screen->features[3] = val;
 812
 813    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_4, &val)) {
 814       DBG("could not get ETNA_GPU_FEATURES_4");
 815       goto fail;
 816    }
 817    screen->features[4] = val;
 818
 819    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_5, &val)) {
 820       DBG("could not get ETNA_GPU_FEATURES_5");
 821       goto fail;
 822    }
 823    screen->features[5] = val;
 824
 825    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_6, &val)) {
 826       DBG("could not get ETNA_GPU_FEATURES_6");
 827       goto fail;
 828    }
 829    screen->features[6] = val;
 830
 831    if (!etna_get_specs(screen))
 832       goto fail;
 833
 834    /* apply debug options that disable individual features */
 835    if (DBG_ENABLED(ETNA_DBG_NO_EARLY_Z))
 836       screen->features[viv_chipFeatures] |= chipFeatures_NO_EARLY_Z;
 837    if (DBG_ENABLED(ETNA_DBG_NO_TS))
 838          screen->features[viv_chipFeatures] &= ~chipFeatures_FAST_CLEAR;
 839    if (DBG_ENABLED(ETNA_DBG_NO_AUTODISABLE))
 840       screen->features[viv_chipMinorFeatures1] &= ~chipMinorFeatures1_AUTO_DISABLE;
 841    if (DBG_ENABLED(ETNA_DBG_NO_SUPERTILE))
 842       screen->specs.can_supertile = 0;
 843
 844    pscreen->destroy = etna_screen_destroy;
 845    pscreen->get_param = etna_screen_get_param;
 846    pscreen->get_paramf = etna_screen_get_paramf;
 847    pscreen->get_shader_param = etna_screen_get_shader_param;
 848
 849    pscreen->get_name = etna_screen_get_name;
 850    pscreen->get_vendor = etna_screen_get_vendor;
 851    pscreen->get_device_vendor = etna_screen_get_device_vendor;
 852
 853    pscreen->get_timestamp = etna_screen_get_timestamp;
 854    pscreen->context_create = etna_context_create;
 855    pscreen->is_format_supported = etna_screen_is_format_supported;
 856
 857    etna_fence_screen_init(pscreen);
 858    etna_query_screen_init(pscreen);
 859    etna_resource_screen_init(pscreen);
 860
 861    slab_create_parent(&screen->transfer_pool, sizeof(struct etna_transfer), 16);
 862
 863    return pscreen;
 864
 865 fail:
 866    etna_screen_destroy(pscreen);
 867    return NULL;
 868 }