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 "util/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 #include <drm_fourcc.h>
  49
  50 #define ETNA_DRM_VERSION(major, minor) ((major) << 16 | (minor))
  51 #define ETNA_DRM_VERSION_FENCE_FD      ETNA_DRM_VERSION(1, 1)
  52
  53 static const struct debug_named_value debug_options[] = {
  54    {"dbg_msgs",       ETNA_DBG_MSGS, "Print debug messages"},
  55    {"frame_msgs",     ETNA_DBG_FRAME_MSGS, "Print frame messages"},
  56    {"resource_msgs",  ETNA_DBG_RESOURCE_MSGS, "Print resource messages"},
  57    {"compiler_msgs",  ETNA_DBG_COMPILER_MSGS, "Print compiler messages"},
  58    {"linker_msgs",    ETNA_DBG_LINKER_MSGS, "Print linker messages"},
  59    {"dump_shaders",   ETNA_DBG_DUMP_SHADERS, "Dump shaders"},
  60    {"no_ts",          ETNA_DBG_NO_TS, "Disable TS"},
  61    {"no_autodisable", ETNA_DBG_NO_AUTODISABLE, "Disable autodisable"},
  62    {"no_supertile",   ETNA_DBG_NO_SUPERTILE, "Disable supertiles"},
  63    {"no_early_z",     ETNA_DBG_NO_EARLY_Z, "Disable early z"},
  64    {"cflush_all",     ETNA_DBG_CFLUSH_ALL, "Flush every cash before state update"},
  65    {"msaa2x",         ETNA_DBG_MSAA_2X, "Force 2x msaa"},
  66    {"msaa4x",         ETNA_DBG_MSAA_4X, "Force 4x msaa"},
  67    {"flush_all",      ETNA_DBG_FLUSH_ALL, "Flush after every rendered primitive"},
  68    {"zero",           ETNA_DBG_ZERO, "Zero all resources after allocation"},
  69    {"draw_stall",     ETNA_DBG_DRAW_STALL, "Stall FE/PE after each rendered primitive"},
  70    {"shaderdb",       ETNA_DBG_SHADERDB, "Enable shaderdb output"},
  71    DEBUG_NAMED_VALUE_END
  72 };
  73
  74 DEBUG_GET_ONCE_FLAGS_OPTION(etna_mesa_debug, "ETNA_MESA_DEBUG", debug_options, 0)
  75 int etna_mesa_debug = 0;
  76
  77 static void
  78 etna_screen_destroy(struct pipe_screen *pscreen)
  79 {
  80    struct etna_screen *screen = etna_screen(pscreen);
  81
  82    if (screen->pipe)
  83       etna_pipe_del(screen->pipe);
  84
  85    if (screen->gpu)
  86       etna_gpu_del(screen->gpu);
  87
  88    if (screen->ro)
  89       FREE(screen->ro);
  90
  91    if (screen->dev)
  92       etna_device_del(screen->dev);
  93
  94    FREE(screen);
  95 }
  96
  97 static const char *
  98 etna_screen_get_name(struct pipe_screen *pscreen)
  99 {
 100    struct etna_screen *priv = etna_screen(pscreen);
 101    static char buffer[128];
 102
 103    util_snprintf(buffer, sizeof(buffer), "Vivante GC%x rev %04x", priv->model,
 104                  priv->revision);
 105
 106    return buffer;
 107 }
 108
 109 static const char *
 110 etna_screen_get_vendor(struct pipe_screen *pscreen)
 111 {
 112    return "etnaviv";
 113 }
 114
 115 static const char *
 116 etna_screen_get_device_vendor(struct pipe_screen *pscreen)
 117 {
 118    return "Vivante";
 119 }
 120
 121 static int
 122 etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 123 {
 124    struct etna_screen *screen = etna_screen(pscreen);
 125
 126    switch (param) {
 127    /* Supported features (boolean caps). */
 128    case PIPE_CAP_ANISOTROPIC_FILTER:
 129    case PIPE_CAP_POINT_SPRITE:
 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_TGSI_TEXCOORD:
 140    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 141       return 1;
 142    case PIPE_CAP_NATIVE_FENCE_FD:
 143       return screen->drm_version >= ETNA_DRM_VERSION_FENCE_FD;
 144
 145    /* Memory */
 146    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 147       return 256;
 148    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 149       return 4; /* XXX could easily be supported */
 150    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 151       return 120;
 152
 153    case PIPE_CAP_NPOT_TEXTURES:
 154       return true; /* VIV_FEATURE(priv->dev, chipMinorFeatures1,
 155                       NON_POWER_OF_TWO); */
 156
 157    case PIPE_CAP_TEXTURE_SWIZZLE:
 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_COMPUTE: /* XXX supported on gc2000 */
 168    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: /* only one colorbuffer supported, so mixing makes no sense */
 169    case PIPE_CAP_CONDITIONAL_RENDER: /* no occlusion queries */
 170    case PIPE_CAP_TGSI_INSTANCEID: /* no idea, really */
 171    case PIPE_CAP_START_INSTANCE: /* instancing not supported AFAIK */
 172    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: /* instancing not supported AFAIK */
 173    case PIPE_CAP_SHADER_STENCIL_EXPORT: /* Fragment shader cannot export stencil value */
 174    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: /* no dual-source supported */
 175    case PIPE_CAP_TEXTURE_MULTISAMPLE: /* no texture multisample */
 176    case PIPE_CAP_TEXTURE_MIRROR_CLAMP: /* only mirrored repeat */
 177    case PIPE_CAP_INDEP_BLEND_ENABLE:
 178    case PIPE_CAP_INDEP_BLEND_FUNC:
 179    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 180    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 181    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 182    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 183    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: /* Don't skip strict max uniform limit check */
 184    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 185    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 186    case PIPE_CAP_USER_VERTEX_BUFFERS:
 187    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 188    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 189    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 190    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES: /* TODO: test me out with piglit */
 191    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 192    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 193    case PIPE_CAP_TEXTURE_GATHER_SM5:
 194    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 195    case PIPE_CAP_FAKE_SW_MSAA:
 196    case PIPE_CAP_TEXTURE_QUERY_LOD:
 197    case PIPE_CAP_SAMPLE_SHADING:
 198    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 199    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 200    case PIPE_CAP_DRAW_INDIRECT:
 201    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 202    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 203    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 204    case PIPE_CAP_CLIP_HALFZ:
 205    case PIPE_CAP_VERTEXID_NOBASE:
 206    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 207    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 208    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 209    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 210    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 211    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 212    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 213    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 214    case PIPE_CAP_TGSI_TXQS:
 215    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 216    case PIPE_CAP_SHAREABLE_SHADERS:
 217    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 218    case PIPE_CAP_CLEAR_TEXTURE:
 219    case PIPE_CAP_DRAW_PARAMETERS:
 220    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 221    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 222    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 223    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 224    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 225    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 226    case PIPE_CAP_INVALIDATE_BUFFER:
 227    case PIPE_CAP_GENERATE_MIPMAP:
 228    case PIPE_CAP_STRING_MARKER:
 229    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 230    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 231    case PIPE_CAP_QUERY_MEMORY_INFO:
 232    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 233    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 234    case PIPE_CAP_CULL_DISTANCE:
 235    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 236    case PIPE_CAP_TGSI_VOTE:
 237    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 238    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 239    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 240    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 241    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 242    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 243    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 244    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 245    case PIPE_CAP_TGSI_FS_FBFETCH:
 246    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 247    case PIPE_CAP_DOUBLES:
 248    case PIPE_CAP_INT64:
 249    case PIPE_CAP_INT64_DIVMOD:
 250    case PIPE_CAP_TGSI_TEX_TXF_LZ:
 251    case PIPE_CAP_TGSI_CLOCK:
 252    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 253    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 254    case PIPE_CAP_TGSI_BALLOT:
 255    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 256    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 257    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 258    case PIPE_CAP_POST_DEPTH_COVERAGE:
 259    case PIPE_CAP_BINDLESS_TEXTURE:
 260    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 261    case PIPE_CAP_QUERY_SO_OVERFLOW:
 262    case PIPE_CAP_MEMOBJ:
 263    case PIPE_CAP_LOAD_CONSTBUF:
 264    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 265    case PIPE_CAP_TILE_RASTER_ORDER:
 266    case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 267    case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 268    case PIPE_CAP_CONTEXT_PRIORITY_MASK:
 269       return 0;
 270
 271    /* Stream output. */
 272    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 273    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 274    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 275    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 276       return 0;
 277
 278    /* Geometry shader output, unsupported. */
 279    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 280    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 281    case PIPE_CAP_MAX_VERTEX_STREAMS:
 282       return 0;
 283
 284    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 285       return 128;
 286
 287    /* Texturing. */
 288    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 289    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 290    {
 291       int log2_max_tex_size = util_last_bit(screen->specs.max_texture_size);
 292       assert(log2_max_tex_size > 0);
 293       return log2_max_tex_size;
 294    }
 295    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: /* 3D textures not supported - fake it */
 296       return 5;
 297    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 298       return 0;
 299    case PIPE_CAP_CUBE_MAP_ARRAY:
 300       return 0;
 301    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 302    case PIPE_CAP_MIN_TEXEL_OFFSET:
 303       return -8;
 304    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 305    case PIPE_CAP_MAX_TEXEL_OFFSET:
 306       return 7;
 307    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 308       return 0;
 309    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 310       return 65536;
 311
 312    /* Render targets. */
 313    case PIPE_CAP_MAX_RENDER_TARGETS:
 314       return 1;
 315
 316    /* Viewports and scissors. */
 317    case PIPE_CAP_MAX_VIEWPORTS:
 318       return 1;
 319
 320    /* Timer queries. */
 321    case PIPE_CAP_QUERY_TIME_ELAPSED:
 322       return 0;
 323    case PIPE_CAP_OCCLUSION_QUERY:
 324       return VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 325    case PIPE_CAP_QUERY_TIMESTAMP:
 326       return 1;
 327    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 328       return 0;
 329
 330    /* Preferences */
 331    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 332       return 0;
 333
 334    case PIPE_CAP_PCI_GROUP:
 335    case PIPE_CAP_PCI_BUS:
 336    case PIPE_CAP_PCI_DEVICE:
 337    case PIPE_CAP_PCI_FUNCTION:
 338       return 0;
 339    case PIPE_CAP_VENDOR_ID:
 340    case PIPE_CAP_DEVICE_ID:
 341       return 0xFFFFFFFF;
 342    case PIPE_CAP_ACCELERATED:
 343       return 1;
 344    case PIPE_CAP_VIDEO_MEMORY:
 345       return 0;
 346    case PIPE_CAP_UMA:
 347       return 1;
 348    }
 349
 350    debug_printf("unknown param %d", param);
 351    return 0;
 352 }
 353
 354 static float
 355 etna_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 356 {
 357    struct etna_screen *screen = etna_screen(pscreen);
 358
 359    switch (param) {
 360    case PIPE_CAPF_MAX_LINE_WIDTH:
 361    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 362    case PIPE_CAPF_MAX_POINT_WIDTH:
 363    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 364       return 8192.0f;
 365    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 366       return 16.0f;
 367    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 368       return util_last_bit(screen->specs.max_texture_size);
 369    case PIPE_CAPF_GUARD_BAND_LEFT:
 370    case PIPE_CAPF_GUARD_BAND_TOP:
 371    case PIPE_CAPF_GUARD_BAND_RIGHT:
 372    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 373       return 0.0f;
 374    }
 375
 376    debug_printf("unknown paramf %d", param);
 377    return 0;
 378 }
 379
 380 static int
 381 etna_screen_get_shader_param(struct pipe_screen *pscreen,
 382                              enum pipe_shader_type shader,
 383                              enum pipe_shader_cap param)
 384 {
 385    struct etna_screen *screen = etna_screen(pscreen);
 386
 387    switch (shader) {
 388    case PIPE_SHADER_FRAGMENT:
 389    case PIPE_SHADER_VERTEX:
 390       break;
 391    case PIPE_SHADER_COMPUTE:
 392    case PIPE_SHADER_GEOMETRY:
 393    case PIPE_SHADER_TESS_CTRL:
 394    case PIPE_SHADER_TESS_EVAL:
 395       return 0;
 396    default:
 397       DBG("unknown shader type %d", shader);
 398       return 0;
 399    }
 400
 401    switch (param) {
 402    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 403    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 404    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 405    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 406       return ETNA_MAX_TOKENS;
 407    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 408       return ETNA_MAX_DEPTH; /* XXX */
 409    case PIPE_SHADER_CAP_MAX_INPUTS:
 410       /* Maximum number of inputs for the vertex shader is the number
 411        * of vertex elements - each element defines one vertex shader
 412        * input register.  For the fragment shader, this is the number
 413        * of varyings. */
 414       return shader == PIPE_SHADER_FRAGMENT ? screen->specs.max_varyings
 415                                             : screen->specs.vertex_max_elements;
 416    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 417       return 16; /* see VIVS_VS_OUTPUT */
 418    case PIPE_SHADER_CAP_MAX_TEMPS:
 419       return 64; /* Max native temporaries. */
 420    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 421       return 1;
 422    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 423       return 1;
 424    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 425    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 426    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 427    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 428       return 1;
 429    case PIPE_SHADER_CAP_SUBROUTINES:
 430       return 0;
 431    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 432       return VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 433    case PIPE_SHADER_CAP_INTEGERS:
 434    case PIPE_SHADER_CAP_INT64_ATOMICS:
 435    case PIPE_SHADER_CAP_FP16:
 436       return 0;
 437    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 438    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 439       return shader == PIPE_SHADER_FRAGMENT
 440                 ? screen->specs.fragment_sampler_count
 441                 : screen->specs.vertex_sampler_count;
 442    case PIPE_SHADER_CAP_PREFERRED_IR:
 443       return PIPE_SHADER_IR_TGSI;
 444    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 445       return 4096;
 446    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 447    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 448    case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 449    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 450    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 451       return false;
 452    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 453       return 0;
 454    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 455       return 32;
 456    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 457    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 458    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 459    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 460    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 461    case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 462       return 0;
 463    }
 464
 465    debug_printf("unknown shader param %d", param);
 466    return 0;
 467 }
 468
 469 static uint64_t
 470 etna_screen_get_timestamp(struct pipe_screen *pscreen)
 471 {
 472    return os_time_get_nano();
 473 }
 474
 475 static bool
 476 gpu_supports_texure_format(struct etna_screen *screen, uint32_t fmt,
 477                            enum pipe_format format)
 478 {
 479    bool supported = true;
 480
 481    if (fmt == TEXTURE_FORMAT_ETC1)
 482       supported = VIV_FEATURE(screen, chipFeatures, ETC1_TEXTURE_COMPRESSION);
 483
 484    if (fmt >= TEXTURE_FORMAT_DXT1 && fmt <= TEXTURE_FORMAT_DXT4_DXT5)
 485       supported = VIV_FEATURE(screen, chipFeatures, DXT_TEXTURE_COMPRESSION);
 486
 487    if (util_format_is_srgb(format))
 488       supported = VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 489
 490    if (fmt & EXT_FORMAT) {
 491       supported = VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 492
 493       /* ETC1 is checked above, as it has its own feature bit. ETC2 is
 494        * supported with HALTI0, however that implementation is buggy in hardware.
 495        * The blob driver does per-block patching to work around this. As this
 496        * is currently not implemented by etnaviv, enable it for HALTI1 (GC3000)
 497        * only.
 498        */
 499       if (util_format_is_etc(format))
 500          supported = VIV_FEATURE(screen, chipMinorFeatures2, HALTI1);
 501    }
 502
 503    if (fmt & ASTC_FORMAT) {
 504       supported = screen->specs.tex_astc;
 505    }
 506
 507    if (!supported)
 508       return false;
 509
 510    if (texture_format_needs_swiz(format))
 511       return VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 512
 513    return true;
 514 }
 515
 516 static boolean
 517 etna_screen_is_format_supported(struct pipe_screen *pscreen,
 518                                 enum pipe_format format,
 519                                 enum pipe_texture_target target,
 520                                 unsigned sample_count, unsigned usage)
 521 {
 522    struct etna_screen *screen = etna_screen(pscreen);
 523    unsigned allowed = 0;
 524
 525    if (target != PIPE_BUFFER &&
 526        target != PIPE_TEXTURE_1D &&
 527        target != PIPE_TEXTURE_2D &&
 528        target != PIPE_TEXTURE_3D &&
 529        target != PIPE_TEXTURE_CUBE &&
 530        target != PIPE_TEXTURE_RECT)
 531       return FALSE;
 532
 533    if (usage & PIPE_BIND_RENDER_TARGET) {
 534       /* if render target, must be RS-supported format */
 535       if (translate_rs_format(format) != ETNA_NO_MATCH) {
 536          /* Validate MSAA; number of samples must be allowed, and render target
 537           * must have MSAA'able format. */
 538          if (sample_count > 1) {
 539             if (translate_samples_to_xyscale(sample_count, NULL, NULL, NULL) &&
 540                 translate_msaa_format(format) != ETNA_NO_MATCH) {
 541                allowed |= PIPE_BIND_RENDER_TARGET;
 542             }
 543          } else {
 544             allowed |= PIPE_BIND_RENDER_TARGET;
 545          }
 546       }
 547    }
 548
 549    if (usage & PIPE_BIND_DEPTH_STENCIL) {
 550       if (translate_depth_format(format) != ETNA_NO_MATCH)
 551          allowed |= PIPE_BIND_DEPTH_STENCIL;
 552    }
 553
 554    if (usage & PIPE_BIND_SAMPLER_VIEW) {
 555       uint32_t fmt = translate_texture_format(format);
 556
 557       if (!gpu_supports_texure_format(screen, fmt, format))
 558          fmt = ETNA_NO_MATCH;
 559
 560       if (sample_count < 2 && fmt != ETNA_NO_MATCH)
 561          allowed |= PIPE_BIND_SAMPLER_VIEW;
 562    }
 563
 564    if (usage & PIPE_BIND_VERTEX_BUFFER) {
 565       if (translate_vertex_format_type(format) != ETNA_NO_MATCH)
 566          allowed |= PIPE_BIND_VERTEX_BUFFER;
 567    }
 568
 569    if (usage & PIPE_BIND_INDEX_BUFFER) {
 570       /* must be supported index format */
 571       if (format == PIPE_FORMAT_I8_UINT || format == PIPE_FORMAT_I16_UINT ||
 572           (format == PIPE_FORMAT_I32_UINT &&
 573            VIV_FEATURE(screen, chipFeatures, 32_BIT_INDICES))) {
 574          allowed |= PIPE_BIND_INDEX_BUFFER;
 575       }
 576    }
 577
 578    /* Always allowed */
 579    allowed |=
 580       usage & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
 581
 582    if (usage != allowed) {
 583       DBG("not supported: format=%s, target=%d, sample_count=%d, "
 584           "usage=%x, allowed=%x",
 585           util_format_name(format), target, sample_count, usage, allowed);
 586    }
 587
 588    return usage == allowed;
 589 }
 590
 591 const uint64_t supported_modifiers[] = {
 592    DRM_FORMAT_MOD_LINEAR,
 593    DRM_FORMAT_MOD_VIVANTE_TILED,
 594    DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
 595    DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED,
 596    DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED,
 597 };
 598
 599 static void
 600 etna_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 601                                    enum pipe_format format, int max,
 602                                    uint64_t *modifiers,
 603                                    unsigned int *external_only, int *count)
 604 {
 605    struct etna_screen *screen = etna_screen(pscreen);
 606    int i, num_modifiers = 0;
 607
 608    if (max > ARRAY_SIZE(supported_modifiers))
 609       max = ARRAY_SIZE(supported_modifiers);
 610
 611    if (!max) {
 612       modifiers = NULL;
 613       max = ARRAY_SIZE(supported_modifiers);
 614    }
 615
 616    for (i = 0; num_modifiers < max; i++) {
 617       /* don't advertise split tiled formats on single pipe/buffer GPUs */
 618       if ((screen->specs.pixel_pipes == 1 || screen->specs.single_buffer) &&
 619           i >= 3)
 620          break;
 621
 622       if (modifiers)
 623          modifiers[num_modifiers] = supported_modifiers[i];
 624       if (external_only)
 625          external_only[num_modifiers] = 0;
 626       num_modifiers++;
 627    }
 628
 629    *count = num_modifiers;
 630 }
 631
 632 static boolean
 633 etna_get_specs(struct etna_screen *screen)
 634 {
 635    uint64_t val;
 636    uint32_t instruction_count;
 637
 638    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_INSTRUCTION_COUNT, &val)) {
 639       DBG("could not get ETNA_GPU_INSTRUCTION_COUNT");
 640       goto fail;
 641    }
 642    instruction_count = val;
 643
 644    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE,
 645                           &val)) {
 646       DBG("could not get ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE");
 647       goto fail;
 648    }
 649    screen->specs.vertex_output_buffer_size = val;
 650
 651    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_CACHE_SIZE, &val)) {
 652       DBG("could not get ETNA_GPU_VERTEX_CACHE_SIZE");
 653       goto fail;
 654    }
 655    screen->specs.vertex_cache_size = val;
 656
 657    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_SHADER_CORE_COUNT, &val)) {
 658       DBG("could not get ETNA_GPU_SHADER_CORE_COUNT");
 659       goto fail;
 660    }
 661    screen->specs.shader_core_count = val;
 662
 663    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_STREAM_COUNT, &val)) {
 664       DBG("could not get ETNA_GPU_STREAM_COUNT");
 665       goto fail;
 666    }
 667    screen->specs.stream_count = val;
 668
 669    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REGISTER_MAX, &val)) {
 670       DBG("could not get ETNA_GPU_REGISTER_MAX");
 671       goto fail;
 672    }
 673    screen->specs.max_registers = val;
 674
 675    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_PIXEL_PIPES, &val)) {
 676       DBG("could not get ETNA_GPU_PIXEL_PIPES");
 677       goto fail;
 678    }
 679    screen->specs.pixel_pipes = val;
 680
 681    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_NUM_CONSTANTS, &val)) {
 682       DBG("could not get %s", "ETNA_GPU_NUM_CONSTANTS");
 683       goto fail;
 684    }
 685    if (val == 0) {
 686       fprintf(stderr, "Warning: zero num constants (update kernel?)\n");
 687       val = 168;
 688    }
 689    screen->specs.num_constants = val;
 690
 691    /* Figure out gross GPU architecture. See rnndb/common.xml for a specific
 692     * description of the differences. */
 693    if (VIV_FEATURE(screen, chipMinorFeatures5, HALTI5))
 694       screen->specs.halti = 5; /* New GC7000/GC8x00  */
 695    else if (VIV_FEATURE(screen, chipMinorFeatures5, HALTI4))
 696       screen->specs.halti = 4; /* Old GC7000/GC7400 */
 697    else if (VIV_FEATURE(screen, chipMinorFeatures5, HALTI3))
 698       screen->specs.halti = 3; /* None? */
 699    else if (VIV_FEATURE(screen, chipMinorFeatures4, HALTI2))
 700       screen->specs.halti = 2; /* GC2500/GC3000/GC5000/GC6400 */
 701    else if (VIV_FEATURE(screen, chipMinorFeatures2, HALTI1))
 702       screen->specs.halti = 1; /* GC900/GC4000/GC7000UL */
 703    else if (VIV_FEATURE(screen, chipMinorFeatures1, HALTI0))
 704       screen->specs.halti = 0; /* GC880/GC2000/GC7000TM */
 705    else
 706       screen->specs.halti = -1; /* GC7000nanolite / pre-GC2000 except GC880 */
 707    if (screen->specs.halti >= 0)
 708       DBG("etnaviv: GPU arch: HALTI%d\n", screen->specs.halti);
 709    else
 710       DBG("etnaviv: GPU arch: pre-HALTI\n");
 711
 712    screen->specs.can_supertile =
 713       VIV_FEATURE(screen, chipMinorFeatures0, SUPER_TILED);
 714    screen->specs.bits_per_tile =
 715       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 2 : 4;
 716    screen->specs.ts_clear_value =
 717       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 0x55555555
 718                                                            : 0x11111111;
 719
 720    /* vertex and fragment samplers live in one address space */
 721    screen->specs.vertex_sampler_offset = 8;
 722    screen->specs.fragment_sampler_count = 8;
 723    screen->specs.vertex_sampler_count = 4;
 724    screen->specs.vs_need_z_div =
 725       screen->model < 0x1000 && screen->model != 0x880;
 726    screen->specs.has_sin_cos_sqrt =
 727       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 728    screen->specs.has_sign_floor_ceil =
 729       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SIGN_FLOOR_CEIL);
 730    screen->specs.has_shader_range_registers =
 731       screen->model >= 0x1000 || screen->model == 0x880;
 732    screen->specs.npot_tex_any_wrap =
 733       VIV_FEATURE(screen, chipMinorFeatures1, NON_POWER_OF_TWO);
 734    screen->specs.has_new_transcendentals =
 735       VIV_FEATURE(screen, chipMinorFeatures3, HAS_FAST_TRANSCENDENTALS);
 736    screen->specs.has_halti2_instructions =
 737       VIV_FEATURE(screen, chipMinorFeatures4, HALTI2);
 738
 739    if (screen->specs.halti >= 5) {
 740       /* GC7000 - this core must load shaders from memory. */
 741       screen->specs.vs_offset = 0;
 742       screen->specs.ps_offset = 0;
 743       screen->specs.max_instructions = 0; /* Do not program shaders manually */
 744       screen->specs.has_icache = true;
 745    } else if (VIV_FEATURE(screen, chipMinorFeatures3, INSTRUCTION_CACHE)) {
 746       /* GC3000 - this core is capable of loading shaders from
 747        * memory. It can also run shaders from registers, as a fallback, but
 748        * "max_instructions" does not have the correct value. It has place for
 749        * 2*256 instructions just like GC2000, but the offsets are slightly
 750        * different.
 751        */
 752       screen->specs.vs_offset = 0xC000;
 753       /* State 08000-0C000 mirrors 0C000-0E000, and the Vivante driver uses
 754        * this mirror for writing PS instructions, probably safest to do the
 755        * same.
 756        */
 757       screen->specs.ps_offset = 0x8000 + 0x1000;
 758       screen->specs.max_instructions = 256; /* maximum number instructions for non-icache use */
 759       screen->specs.has_icache = true;
 760    } else {
 761       if (instruction_count > 256) { /* unified instruction memory? */
 762          screen->specs.vs_offset = 0xC000;
 763          screen->specs.ps_offset = 0xD000; /* like vivante driver */
 764          screen->specs.max_instructions = 256;
 765       } else {
 766          screen->specs.vs_offset = 0x4000;
 767          screen->specs.ps_offset = 0x6000;
 768          screen->specs.max_instructions = instruction_count / 2;
 769       }
 770       screen->specs.has_icache = false;
 771    }
 772
 773    if (VIV_FEATURE(screen, chipMinorFeatures1, HALTI0)) {
 774       screen->specs.max_varyings = 12;
 775       screen->specs.vertex_max_elements = 16;
 776    } else {
 777       screen->specs.max_varyings = 8;
 778       /* Etna_viv documentation seems confused over the correct value
 779        * here so choose the lower to be safe: HALTI0 says 16 i.s.o.
 780        * 10, but VERTEX_ELEMENT_CONFIG register says 16 i.s.o. 12. */
 781       screen->specs.vertex_max_elements = 10;
 782    }
 783
 784    /* Etna_viv documentation does not indicate where varyings above 8 are
 785     * stored. Moreover, if we are passed more than 8 varyings, we will
 786     * walk off the end of some arrays. Limit the maximum number of varyings. */
 787    if (screen->specs.max_varyings > ETNA_NUM_VARYINGS)
 788       screen->specs.max_varyings = ETNA_NUM_VARYINGS;
 789
 790    /* from QueryShaderCaps in kernel driver */
 791    if (screen->model < chipModel_GC4000) {
 792       screen->specs.max_vs_uniforms = 168;
 793       screen->specs.max_ps_uniforms = 64;
 794    } else {
 795       screen->specs.max_vs_uniforms = 256;
 796       screen->specs.max_ps_uniforms = 256;
 797    }
 798
 799    if (screen->specs.halti >= 5) {
 800       screen->specs.has_unified_uniforms = true;
 801       screen->specs.vs_uniforms_offset = VIVS_SH_HALTI5_UNIFORMS_MIRROR(0);
 802       screen->specs.ps_uniforms_offset = VIVS_SH_HALTI5_UNIFORMS(screen->specs.max_vs_uniforms*4);
 803    } else if (screen->specs.halti >= 1) {
 804       /* unified uniform memory on GC3000 - HALTI1 feature bit is just a guess
 805       */
 806       screen->specs.has_unified_uniforms = true;
 807       screen->specs.vs_uniforms_offset = VIVS_SH_UNIFORMS(0);
 808       /* hardcode PS uniforms to start after end of VS uniforms -
 809        * for more flexibility this offset could be variable based on the
 810        * shader.
 811        */
 812       screen->specs.ps_uniforms_offset = VIVS_SH_UNIFORMS(screen->specs.max_vs_uniforms*4);
 813    } else {
 814       screen->specs.has_unified_uniforms = false;
 815       screen->specs.vs_uniforms_offset = VIVS_VS_UNIFORMS(0);
 816       screen->specs.ps_uniforms_offset = VIVS_PS_UNIFORMS(0);
 817    }
 818
 819    screen->specs.max_texture_size =
 820       VIV_FEATURE(screen, chipMinorFeatures0, TEXTURE_8K) ? 8192 : 2048;
 821    screen->specs.max_rendertarget_size =
 822       VIV_FEATURE(screen, chipMinorFeatures0, RENDERTARGET_8K) ? 8192 : 2048;
 823
 824    screen->specs.single_buffer = VIV_FEATURE(screen, chipMinorFeatures4, SINGLE_BUFFER);
 825    if (screen->specs.single_buffer)
 826       DBG("etnaviv: Single buffer mode enabled with %d pixel pipes\n", screen->specs.pixel_pipes);
 827
 828    screen->specs.tex_astc = VIV_FEATURE(screen, chipMinorFeatures4, TEXTURE_ASTC);
 829
 830    screen->specs.use_blt = VIV_FEATURE(screen, chipMinorFeatures5, BLT_ENGINE);
 831
 832    return true;
 833
 834 fail:
 835    return false;
 836 }
 837
 838 struct etna_bo *
 839 etna_screen_bo_from_handle(struct pipe_screen *pscreen,
 840                            struct winsys_handle *whandle, unsigned *out_stride)
 841 {
 842    struct etna_screen *screen = etna_screen(pscreen);
 843    struct etna_bo *bo;
 844
 845    if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
 846       bo = etna_bo_from_name(screen->dev, whandle->handle);
 847    } else if (whandle->type == DRM_API_HANDLE_TYPE_FD) {
 848       bo = etna_bo_from_dmabuf(screen->dev, whandle->handle);
 849    } else {
 850       DBG("Attempt to import unsupported handle type %d", whandle->type);
 851       return NULL;
 852    }
 853
 854    if (!bo) {
 855       DBG("ref name 0x%08x failed", whandle->handle);
 856       return NULL;
 857    }
 858
 859    *out_stride = whandle->stride;
 860
 861    return bo;
 862 }
 863
 864 struct pipe_screen *
 865 etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
 866                    struct renderonly *ro)
 867 {
 868    struct etna_screen *screen = CALLOC_STRUCT(etna_screen);
 869    struct pipe_screen *pscreen;
 870    drmVersionPtr version;
 871    uint64_t val;
 872
 873    if (!screen)
 874       return NULL;
 875
 876    pscreen = &screen->base;
 877    screen->dev = dev;
 878    screen->gpu = gpu;
 879    screen->ro = renderonly_dup(ro);
 880    screen->refcnt = 1;
 881
 882    if (!screen->ro) {
 883       DBG("could not create renderonly object");
 884       goto fail;
 885    }
 886
 887    version = drmGetVersion(screen->ro->gpu_fd);
 888    screen->drm_version = ETNA_DRM_VERSION(version->version_major,
 889                                           version->version_minor);
 890    drmFreeVersion(version);
 891
 892    etna_mesa_debug = debug_get_option_etna_mesa_debug();
 893
 894    /* Disable autodisable for correct rendering with TS */
 895    etna_mesa_debug |= ETNA_DBG_NO_AUTODISABLE;
 896
 897    screen->pipe = etna_pipe_new(gpu, ETNA_PIPE_3D);
 898    if (!screen->pipe) {
 899       DBG("could not create 3d pipe");
 900       goto fail;
 901    }
 902
 903    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_MODEL, &val)) {
 904       DBG("could not get ETNA_GPU_MODEL");
 905       goto fail;
 906    }
 907    screen->model = val;
 908
 909    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REVISION, &val)) {
 910       DBG("could not get ETNA_GPU_REVISION");
 911       goto fail;
 912    }
 913    screen->revision = val;
 914
 915    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_0, &val)) {
 916       DBG("could not get ETNA_GPU_FEATURES_0");
 917       goto fail;
 918    }
 919    screen->features[0] = val;
 920
 921    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_1, &val)) {
 922       DBG("could not get ETNA_GPU_FEATURES_1");
 923       goto fail;
 924    }
 925    screen->features[1] = val;
 926
 927    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_2, &val)) {
 928       DBG("could not get ETNA_GPU_FEATURES_2");
 929       goto fail;
 930    }
 931    screen->features[2] = val;
 932
 933    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_3, &val)) {
 934       DBG("could not get ETNA_GPU_FEATURES_3");
 935       goto fail;
 936    }
 937    screen->features[3] = val;
 938
 939    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_4, &val)) {
 940       DBG("could not get ETNA_GPU_FEATURES_4");
 941       goto fail;
 942    }
 943    screen->features[4] = val;
 944
 945    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_5, &val)) {
 946       DBG("could not get ETNA_GPU_FEATURES_5");
 947       goto fail;
 948    }
 949    screen->features[5] = val;
 950
 951    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_6, &val)) {
 952       DBG("could not get ETNA_GPU_FEATURES_6");
 953       goto fail;
 954    }
 955    screen->features[6] = val;
 956
 957    if (!etna_get_specs(screen))
 958       goto fail;
 959
 960    /* apply debug options that disable individual features */
 961    if (DBG_ENABLED(ETNA_DBG_NO_EARLY_Z))
 962       screen->features[viv_chipFeatures] |= chipFeatures_NO_EARLY_Z;
 963    if (DBG_ENABLED(ETNA_DBG_NO_TS))
 964          screen->features[viv_chipFeatures] &= ~chipFeatures_FAST_CLEAR;
 965    if (DBG_ENABLED(ETNA_DBG_NO_AUTODISABLE))
 966       screen->features[viv_chipMinorFeatures1] &= ~chipMinorFeatures1_AUTO_DISABLE;
 967    if (DBG_ENABLED(ETNA_DBG_NO_SUPERTILE))
 968       screen->specs.can_supertile = 0;
 969
 970    pscreen->destroy = etna_screen_destroy;
 971    pscreen->get_param = etna_screen_get_param;
 972    pscreen->get_paramf = etna_screen_get_paramf;
 973    pscreen->get_shader_param = etna_screen_get_shader_param;
 974
 975    pscreen->get_name = etna_screen_get_name;
 976    pscreen->get_vendor = etna_screen_get_vendor;
 977    pscreen->get_device_vendor = etna_screen_get_device_vendor;
 978
 979    pscreen->get_timestamp = etna_screen_get_timestamp;
 980    pscreen->context_create = etna_context_create;
 981    pscreen->is_format_supported = etna_screen_is_format_supported;
 982    pscreen->query_dmabuf_modifiers = etna_screen_query_dmabuf_modifiers;
 983
 984    etna_fence_screen_init(pscreen);
 985    etna_query_screen_init(pscreen);
 986    etna_resource_screen_init(pscreen);
 987
 988    slab_create_parent(&screen->transfer_pool, sizeof(struct etna_transfer), 16);
 989
 990    return pscreen;
 991
 992 fail:
 993    etna_screen_destroy(pscreen);
 994    return NULL;
 995 }