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 #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_TWO_SIDED_STENCIL:
 129    case PIPE_CAP_ANISOTROPIC_FILTER:
 130    case PIPE_CAP_POINT_SPRITE:
 131    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 132    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 133    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 134    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 135    case PIPE_CAP_SM3:
 136    case PIPE_CAP_TEXTURE_BARRIER:
 137    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 138    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 139    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 140    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 141    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 142    case PIPE_CAP_TGSI_TEXCOORD:
 143    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 144       return 1;
 145    case PIPE_CAP_NATIVE_FENCE_FD:
 146       return screen->drm_version >= ETNA_DRM_VERSION_FENCE_FD;
 147
 148    /* Memory */
 149    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 150       return 256;
 151    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 152       return 4; /* XXX could easily be supported */
 153    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 154       return 120;
 155
 156    case PIPE_CAP_NPOT_TEXTURES:
 157       return true; /* VIV_FEATURE(priv->dev, chipMinorFeatures1,
 158                       NON_POWER_OF_TWO); */
 159
 160    case PIPE_CAP_TEXTURE_SWIZZLE:
 161    case PIPE_CAP_PRIMITIVE_RESTART:
 162       return VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 163
 164    case PIPE_CAP_ENDIANNESS:
 165       return PIPE_ENDIAN_LITTLE; /* on most Viv hw this is configurable (feature
 166                                     ENDIANNESS_CONFIG) */
 167
 168    /* Unsupported features. */
 169    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 170    case PIPE_CAP_COMPUTE: /* XXX supported on gc2000 */
 171    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: /* only one colorbuffer supported, so mixing makes no sense */
 172    case PIPE_CAP_CONDITIONAL_RENDER: /* no occlusion queries */
 173    case PIPE_CAP_TGSI_INSTANCEID: /* no idea, really */
 174    case PIPE_CAP_START_INSTANCE: /* instancing not supported AFAIK */
 175    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: /* instancing not supported AFAIK */
 176    case PIPE_CAP_SHADER_STENCIL_EXPORT: /* Fragment shader cannot export stencil value */
 177    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: /* no dual-source supported */
 178    case PIPE_CAP_TEXTURE_MULTISAMPLE: /* no texture multisample */
 179    case PIPE_CAP_TEXTURE_MIRROR_CLAMP: /* only mirrored repeat */
 180    case PIPE_CAP_INDEP_BLEND_ENABLE:
 181    case PIPE_CAP_INDEP_BLEND_FUNC:
 182    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 183    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 184    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 185    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 186    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: /* Don't skip strict max uniform limit check */
 187    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 188    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 189    case PIPE_CAP_USER_VERTEX_BUFFERS:
 190    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 191    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 192    case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 193    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES: /* TODO: test me out with piglit */
 194    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 195    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 196    case PIPE_CAP_TEXTURE_GATHER_SM5:
 197    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 198    case PIPE_CAP_FAKE_SW_MSAA:
 199    case PIPE_CAP_TEXTURE_QUERY_LOD:
 200    case PIPE_CAP_SAMPLE_SHADING:
 201    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 202    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 203    case PIPE_CAP_DRAW_INDIRECT:
 204    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 205    case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 206    case PIPE_CAP_SAMPLER_VIEW_TARGET:
 207    case PIPE_CAP_CLIP_HALFZ:
 208    case PIPE_CAP_VERTEXID_NOBASE:
 209    case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 210    case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 211    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 212    case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 213    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 214    case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 215    case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 216    case PIPE_CAP_DEPTH_BOUNDS_TEST:
 217    case PIPE_CAP_TGSI_TXQS:
 218    case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 219    case PIPE_CAP_SHAREABLE_SHADERS:
 220    case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 221    case PIPE_CAP_CLEAR_TEXTURE:
 222    case PIPE_CAP_DRAW_PARAMETERS:
 223    case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 224    case PIPE_CAP_MULTI_DRAW_INDIRECT:
 225    case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 226    case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 227    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 228    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 229    case PIPE_CAP_INVALIDATE_BUFFER:
 230    case PIPE_CAP_GENERATE_MIPMAP:
 231    case PIPE_CAP_STRING_MARKER:
 232    case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 233    case PIPE_CAP_QUERY_BUFFER_OBJECT:
 234    case PIPE_CAP_QUERY_MEMORY_INFO:
 235    case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 236    case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 237    case PIPE_CAP_CULL_DISTANCE:
 238    case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 239    case PIPE_CAP_TGSI_VOTE:
 240    case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 241    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 242    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 243    case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 244    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 245    case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 246    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 247    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 248    case PIPE_CAP_TGSI_FS_FBFETCH:
 249    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 250    case PIPE_CAP_DOUBLES:
 251    case PIPE_CAP_INT64:
 252    case PIPE_CAP_INT64_DIVMOD:
 253    case PIPE_CAP_TGSI_TEX_TXF_LZ:
 254    case PIPE_CAP_TGSI_CLOCK:
 255    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 256    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 257    case PIPE_CAP_TGSI_BALLOT:
 258    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 259    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 260    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 261    case PIPE_CAP_POST_DEPTH_COVERAGE:
 262    case PIPE_CAP_BINDLESS_TEXTURE:
 263    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 264    case PIPE_CAP_QUERY_SO_OVERFLOW:
 265    case PIPE_CAP_MEMOBJ:
 266    case PIPE_CAP_LOAD_CONSTBUF:
 267       return 0;
 268
 269    /* Stream output. */
 270    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 271    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 272    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 273    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 274       return 0;
 275
 276    /* Geometry shader output, unsupported. */
 277    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 278    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 279    case PIPE_CAP_MAX_VERTEX_STREAMS:
 280       return 0;
 281
 282    case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 283       return 128;
 284
 285    /* Texturing. */
 286    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 287    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 288    {
 289       int log2_max_tex_size = util_last_bit(screen->specs.max_texture_size);
 290       assert(log2_max_tex_size > 0);
 291       return log2_max_tex_size;
 292    }
 293    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: /* 3D textures not supported - fake it */
 294       return 5;
 295    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 296       return 0;
 297    case PIPE_CAP_CUBE_MAP_ARRAY:
 298       return 0;
 299    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 300    case PIPE_CAP_MIN_TEXEL_OFFSET:
 301       return -8;
 302    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 303    case PIPE_CAP_MAX_TEXEL_OFFSET:
 304       return 7;
 305    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 306       return 0;
 307    case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 308       return 65536;
 309
 310    /* Render targets. */
 311    case PIPE_CAP_MAX_RENDER_TARGETS:
 312       return 1;
 313
 314    /* Viewports and scissors. */
 315    case PIPE_CAP_MAX_VIEWPORTS:
 316       return 1;
 317
 318    /* Timer queries. */
 319    case PIPE_CAP_QUERY_TIME_ELAPSED:
 320    case PIPE_CAP_OCCLUSION_QUERY:
 321       return 0;
 322    case PIPE_CAP_QUERY_TIMESTAMP:
 323       return 1;
 324    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 325       return 0;
 326
 327    /* Preferences */
 328    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 329       return 0;
 330
 331    case PIPE_CAP_PCI_GROUP:
 332    case PIPE_CAP_PCI_BUS:
 333    case PIPE_CAP_PCI_DEVICE:
 334    case PIPE_CAP_PCI_FUNCTION:
 335       return 0;
 336    case PIPE_CAP_VENDOR_ID:
 337    case PIPE_CAP_DEVICE_ID:
 338       return 0xFFFFFFFF;
 339    case PIPE_CAP_ACCELERATED:
 340       return 1;
 341    case PIPE_CAP_VIDEO_MEMORY:
 342       return 0;
 343    case PIPE_CAP_UMA:
 344       return 1;
 345    }
 346
 347    debug_printf("unknown param %d", param);
 348    return 0;
 349 }
 350
 351 static float
 352 etna_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 353 {
 354    struct etna_screen *screen = etna_screen(pscreen);
 355
 356    switch (param) {
 357    case PIPE_CAPF_MAX_LINE_WIDTH:
 358    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 359    case PIPE_CAPF_MAX_POINT_WIDTH:
 360    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 361       return 8192.0f;
 362    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 363       return 16.0f;
 364    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 365       return util_last_bit(screen->specs.max_texture_size);
 366    case PIPE_CAPF_GUARD_BAND_LEFT:
 367    case PIPE_CAPF_GUARD_BAND_TOP:
 368    case PIPE_CAPF_GUARD_BAND_RIGHT:
 369    case PIPE_CAPF_GUARD_BAND_BOTTOM:
 370       return 0.0f;
 371    }
 372
 373    debug_printf("unknown paramf %d", param);
 374    return 0;
 375 }
 376
 377 static int
 378 etna_screen_get_shader_param(struct pipe_screen *pscreen,
 379                              enum pipe_shader_type shader,
 380                              enum pipe_shader_cap param)
 381 {
 382    struct etna_screen *screen = etna_screen(pscreen);
 383
 384    switch (shader) {
 385    case PIPE_SHADER_FRAGMENT:
 386    case PIPE_SHADER_VERTEX:
 387       break;
 388    case PIPE_SHADER_COMPUTE:
 389    case PIPE_SHADER_GEOMETRY:
 390    case PIPE_SHADER_TESS_CTRL:
 391    case PIPE_SHADER_TESS_EVAL:
 392       return 0;
 393    default:
 394       DBG("unknown shader type %d", shader);
 395       return 0;
 396    }
 397
 398    switch (param) {
 399    case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 400    case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 401    case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 402    case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 403       return ETNA_MAX_TOKENS;
 404    case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 405       return ETNA_MAX_DEPTH; /* XXX */
 406    case PIPE_SHADER_CAP_MAX_INPUTS:
 407       /* Maximum number of inputs for the vertex shader is the number
 408        * of vertex elements - each element defines one vertex shader
 409        * input register.  For the fragment shader, this is the number
 410        * of varyings. */
 411       return shader == PIPE_SHADER_FRAGMENT ? screen->specs.max_varyings
 412                                             : screen->specs.vertex_max_elements;
 413    case PIPE_SHADER_CAP_MAX_OUTPUTS:
 414       return 16; /* see VIVS_VS_OUTPUT */
 415    case PIPE_SHADER_CAP_MAX_TEMPS:
 416       return 64; /* Max native temporaries. */
 417    case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 418       return 1;
 419    case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 420       return 1;
 421    case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 422    case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 423    case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 424    case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 425       return 1;
 426    case PIPE_SHADER_CAP_SUBROUTINES:
 427       return 0;
 428    case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 429       return VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 430    case PIPE_SHADER_CAP_INTEGERS:
 431    case PIPE_SHADER_CAP_FP16:
 432       return 0;
 433    case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 434    case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 435       return shader == PIPE_SHADER_FRAGMENT
 436                 ? screen->specs.fragment_sampler_count
 437                 : screen->specs.vertex_sampler_count;
 438    case PIPE_SHADER_CAP_PREFERRED_IR:
 439       return PIPE_SHADER_IR_TGSI;
 440    case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 441       return 4096;
 442    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 443    case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 444    case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 445    case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 446       return false;
 447    case PIPE_SHADER_CAP_SUPPORTED_IRS:
 448       return 0;
 449    case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 450       return 32;
 451    case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 452    case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 453    case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 454    case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 455       return 0;
 456    }
 457
 458    debug_printf("unknown shader param %d", param);
 459    return 0;
 460 }
 461
 462 static uint64_t
 463 etna_screen_get_timestamp(struct pipe_screen *pscreen)
 464 {
 465    return os_time_get_nano();
 466 }
 467
 468 static bool
 469 gpu_supports_texure_format(struct etna_screen *screen, uint32_t fmt,
 470                            enum pipe_format format)
 471 {
 472    bool supported = true;
 473
 474    if (fmt == TEXTURE_FORMAT_ETC1)
 475       supported = VIV_FEATURE(screen, chipFeatures, ETC1_TEXTURE_COMPRESSION);
 476
 477    if (fmt >= TEXTURE_FORMAT_DXT1 && fmt <= TEXTURE_FORMAT_DXT4_DXT5)
 478       supported = VIV_FEATURE(screen, chipFeatures, DXT_TEXTURE_COMPRESSION);
 479
 480    if (fmt & EXT_FORMAT) {
 481       supported = VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 482
 483       /* ETC1 is checked above, as it has its own feature bit. ETC2 is
 484        * supported with HALTI0, however that implementation is buggy in hardware.
 485        * The blob driver does per-block patching to work around this. As this
 486        * is currently not implemented by etnaviv, enable it for HALTI1 (GC3000)
 487        * only.
 488        */
 489       if (util_format_is_etc(format))
 490          supported = VIV_FEATURE(screen, chipMinorFeatures2, HALTI1);
 491    }
 492
 493    if (!supported)
 494       return false;
 495
 496    if (texture_format_needs_swiz(format))
 497       return VIV_FEATURE(screen, chipMinorFeatures1, HALTI0);
 498
 499    return true;
 500 }
 501
 502 static boolean
 503 etna_screen_is_format_supported(struct pipe_screen *pscreen,
 504                                 enum pipe_format format,
 505                                 enum pipe_texture_target target,
 506                                 unsigned sample_count, unsigned usage)
 507 {
 508    struct etna_screen *screen = etna_screen(pscreen);
 509    unsigned allowed = 0;
 510
 511    if (target != PIPE_BUFFER &&
 512        target != PIPE_TEXTURE_1D &&
 513        target != PIPE_TEXTURE_2D &&
 514        target != PIPE_TEXTURE_3D &&
 515        target != PIPE_TEXTURE_CUBE &&
 516        target != PIPE_TEXTURE_RECT)
 517       return FALSE;
 518
 519    if (usage & PIPE_BIND_RENDER_TARGET) {
 520       /* if render target, must be RS-supported format */
 521       if (translate_rs_format(format) != ETNA_NO_MATCH) {
 522          /* Validate MSAA; number of samples must be allowed, and render target
 523           * must have MSAA'able format. */
 524          if (sample_count > 1) {
 525             if (translate_samples_to_xyscale(sample_count, NULL, NULL, NULL) &&
 526                 translate_msaa_format(format) != ETNA_NO_MATCH) {
 527                allowed |= PIPE_BIND_RENDER_TARGET;
 528             }
 529          } else {
 530             allowed |= PIPE_BIND_RENDER_TARGET;
 531          }
 532       }
 533    }
 534
 535    if (usage & PIPE_BIND_DEPTH_STENCIL) {
 536       if (translate_depth_format(format) != ETNA_NO_MATCH)
 537          allowed |= PIPE_BIND_DEPTH_STENCIL;
 538    }
 539
 540    if (usage & PIPE_BIND_SAMPLER_VIEW) {
 541       uint32_t fmt = translate_texture_format(format);
 542
 543       if (!gpu_supports_texure_format(screen, fmt, format))
 544          fmt = ETNA_NO_MATCH;
 545
 546       if (sample_count < 2 && fmt != ETNA_NO_MATCH)
 547          allowed |= PIPE_BIND_SAMPLER_VIEW;
 548    }
 549
 550    if (usage & PIPE_BIND_VERTEX_BUFFER) {
 551       if (translate_vertex_format_type(format) != ETNA_NO_MATCH)
 552          allowed |= PIPE_BIND_VERTEX_BUFFER;
 553    }
 554
 555    if (usage & PIPE_BIND_INDEX_BUFFER) {
 556       /* must be supported index format */
 557       if (format == PIPE_FORMAT_I8_UINT || format == PIPE_FORMAT_I16_UINT ||
 558           (format == PIPE_FORMAT_I32_UINT &&
 559            VIV_FEATURE(screen, chipFeatures, 32_BIT_INDICES))) {
 560          allowed |= PIPE_BIND_INDEX_BUFFER;
 561       }
 562    }
 563
 564    /* Always allowed */
 565    allowed |=
 566       usage & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
 567
 568    if (usage != allowed) {
 569       DBG("not supported: format=%s, target=%d, sample_count=%d, "
 570           "usage=%x, allowed=%x",
 571           util_format_name(format), target, sample_count, usage, allowed);
 572    }
 573
 574    return usage == allowed;
 575 }
 576
 577 const uint64_t supported_modifiers[] = {
 578    DRM_FORMAT_MOD_LINEAR,
 579    DRM_FORMAT_MOD_VIVANTE_TILED,
 580    DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
 581    DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED,
 582    DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED,
 583 };
 584
 585 static void
 586 etna_screen_query_dmabuf_modifiers(struct pipe_screen *pscreen,
 587                                    enum pipe_format format, int max,
 588                                    uint64_t *modifiers,
 589                                    unsigned int *external_only, int *count)
 590 {
 591    struct etna_screen *screen = etna_screen(pscreen);
 592    int i, num_modifiers = 0;
 593
 594    if (max > ARRAY_SIZE(supported_modifiers))
 595       max = ARRAY_SIZE(supported_modifiers);
 596
 597    if (!max) {
 598       modifiers = NULL;
 599       max = ARRAY_SIZE(supported_modifiers);
 600    }
 601
 602    for (i = 0; num_modifiers < max; i++) {
 603       /* don't advertise split tiled formats on single pipe/buffer GPUs */
 604       if ((screen->specs.pixel_pipes == 1 || screen->specs.single_buffer) &&
 605           i >= 3)
 606          break;
 607
 608       if (modifiers)
 609          modifiers[num_modifiers] = supported_modifiers[i];
 610       if (external_only)
 611          external_only[num_modifiers] = 0;
 612       num_modifiers++;
 613    }
 614
 615    *count = num_modifiers;
 616 }
 617
 618 static boolean
 619 etna_get_specs(struct etna_screen *screen)
 620 {
 621    uint64_t val;
 622    uint32_t instruction_count;
 623
 624    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_INSTRUCTION_COUNT, &val)) {
 625       DBG("could not get ETNA_GPU_INSTRUCTION_COUNT");
 626       goto fail;
 627    }
 628    instruction_count = val;
 629
 630    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE,
 631                           &val)) {
 632       DBG("could not get ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE");
 633       goto fail;
 634    }
 635    screen->specs.vertex_output_buffer_size = val;
 636
 637    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_VERTEX_CACHE_SIZE, &val)) {
 638       DBG("could not get ETNA_GPU_VERTEX_CACHE_SIZE");
 639       goto fail;
 640    }
 641    screen->specs.vertex_cache_size = val;
 642
 643    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_SHADER_CORE_COUNT, &val)) {
 644       DBG("could not get ETNA_GPU_SHADER_CORE_COUNT");
 645       goto fail;
 646    }
 647    screen->specs.shader_core_count = val;
 648
 649    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_STREAM_COUNT, &val)) {
 650       DBG("could not get ETNA_GPU_STREAM_COUNT");
 651       goto fail;
 652    }
 653    screen->specs.stream_count = val;
 654
 655    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REGISTER_MAX, &val)) {
 656       DBG("could not get ETNA_GPU_REGISTER_MAX");
 657       goto fail;
 658    }
 659    screen->specs.max_registers = val;
 660
 661    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_PIXEL_PIPES, &val)) {
 662       DBG("could not get ETNA_GPU_PIXEL_PIPES");
 663       goto fail;
 664    }
 665    screen->specs.pixel_pipes = val;
 666
 667    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_NUM_CONSTANTS, &val)) {
 668       DBG("could not get %s", "ETNA_GPU_NUM_CONSTANTS");
 669       goto fail;
 670    }
 671    if (val == 0) {
 672       fprintf(stderr, "Warning: zero num constants (update kernel?)\n");
 673       val = 168;
 674    }
 675    screen->specs.num_constants = val;
 676
 677    screen->specs.can_supertile =
 678       VIV_FEATURE(screen, chipMinorFeatures0, SUPER_TILED);
 679    screen->specs.bits_per_tile =
 680       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 2 : 4;
 681    screen->specs.ts_clear_value =
 682       VIV_FEATURE(screen, chipMinorFeatures0, 2BITPERTILE) ? 0x55555555
 683                                                            : 0x11111111;
 684
 685    /* vertex and fragment samplers live in one address space */
 686    screen->specs.vertex_sampler_offset = 8;
 687    screen->specs.fragment_sampler_count = 8;
 688    screen->specs.vertex_sampler_count = 4;
 689    screen->specs.vs_need_z_div =
 690       screen->model < 0x1000 && screen->model != 0x880;
 691    screen->specs.has_sin_cos_sqrt =
 692       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SQRT_TRIG);
 693    screen->specs.has_sign_floor_ceil =
 694       VIV_FEATURE(screen, chipMinorFeatures0, HAS_SIGN_FLOOR_CEIL);
 695    screen->specs.has_shader_range_registers =
 696       screen->model >= 0x1000 || screen->model == 0x880;
 697    screen->specs.npot_tex_any_wrap =
 698       VIV_FEATURE(screen, chipMinorFeatures1, NON_POWER_OF_TWO);
 699    screen->specs.has_new_transcendentals =
 700       VIV_FEATURE(screen, chipMinorFeatures3, HAS_FAST_TRANSCENDENTALS);
 701
 702    if (VIV_FEATURE(screen, chipMinorFeatures3, INSTRUCTION_CACHE)) {
 703       /* GC3000 - this core is capable of loading shaders from
 704        * memory. It can also run shaders from registers, as a fallback, but
 705        * "max_instructions" does not have the correct value. It has place for
 706        * 2*256 instructions just like GC2000, but the offsets are slightly
 707        * different.
 708        */
 709       screen->specs.vs_offset = 0xC000;
 710       /* State 08000-0C000 mirrors 0C000-0E000, and the Vivante driver uses
 711        * this mirror for writing PS instructions, probably safest to do the
 712        * same.
 713        */
 714       screen->specs.ps_offset = 0x8000 + 0x1000;
 715       screen->specs.max_instructions = 256; /* maximum number instructions for non-icache use */
 716       screen->specs.has_icache = true;
 717    } else {
 718       if (instruction_count > 256) { /* unified instruction memory? */
 719          screen->specs.vs_offset = 0xC000;
 720          screen->specs.ps_offset = 0xD000; /* like vivante driver */
 721          screen->specs.max_instructions = 256;
 722       } else {
 723          screen->specs.vs_offset = 0x4000;
 724          screen->specs.ps_offset = 0x6000;
 725          screen->specs.max_instructions = instruction_count / 2;
 726       }
 727       screen->specs.has_icache = false;
 728    }
 729
 730    if (VIV_FEATURE(screen, chipMinorFeatures1, HALTI0)) {
 731       screen->specs.max_varyings = 12;
 732       screen->specs.vertex_max_elements = 16;
 733    } else {
 734       screen->specs.max_varyings = 8;
 735       /* Etna_viv documentation seems confused over the correct value
 736        * here so choose the lower to be safe: HALTI0 says 16 i.s.o.
 737        * 10, but VERTEX_ELEMENT_CONFIG register says 16 i.s.o. 12. */
 738       screen->specs.vertex_max_elements = 10;
 739    }
 740
 741    /* Etna_viv documentation does not indicate where varyings above 8 are
 742     * stored. Moreover, if we are passed more than 8 varyings, we will
 743     * walk off the end of some arrays. Limit the maximum number of varyings. */
 744    if (screen->specs.max_varyings > ETNA_NUM_VARYINGS)
 745       screen->specs.max_varyings = ETNA_NUM_VARYINGS;
 746
 747    /* from QueryShaderCaps in kernel driver */
 748    if (screen->model < chipModel_GC4000) {
 749       screen->specs.max_vs_uniforms = 168;
 750       screen->specs.max_ps_uniforms = 64;
 751    } else {
 752       screen->specs.max_vs_uniforms = 256;
 753       screen->specs.max_ps_uniforms = 256;
 754    }
 755    /* unified uniform memory on GC3000 - HALTI1 feature bit is just a guess
 756    */
 757    if (VIV_FEATURE(screen, chipMinorFeatures2, HALTI1)) {
 758       screen->specs.has_unified_uniforms = true;
 759       screen->specs.vs_uniforms_offset = VIVS_SH_UNIFORMS(0);
 760       /* hardcode PS uniforms to start after end of VS uniforms -
 761        * for more flexibility this offset could be variable based on the
 762        * shader.
 763        */
 764       screen->specs.ps_uniforms_offset = VIVS_SH_UNIFORMS(screen->specs.max_vs_uniforms*4);
 765    } else {
 766       screen->specs.has_unified_uniforms = false;
 767       screen->specs.vs_uniforms_offset = VIVS_VS_UNIFORMS(0);
 768       screen->specs.ps_uniforms_offset = VIVS_PS_UNIFORMS(0);
 769    }
 770
 771    screen->specs.max_texture_size =
 772       VIV_FEATURE(screen, chipMinorFeatures0, TEXTURE_8K) ? 8192 : 2048;
 773    screen->specs.max_rendertarget_size =
 774       VIV_FEATURE(screen, chipMinorFeatures0, RENDERTARGET_8K) ? 8192 : 2048;
 775
 776    screen->specs.single_buffer = VIV_FEATURE(screen, chipMinorFeatures4, SINGLE_BUFFER);
 777    if (screen->specs.single_buffer)
 778       DBG("etnaviv: Single buffer mode enabled with %d pixel pipes\n", screen->specs.pixel_pipes);
 779
 780    return true;
 781
 782 fail:
 783    return false;
 784 }
 785
 786 struct etna_bo *
 787 etna_screen_bo_from_handle(struct pipe_screen *pscreen,
 788                            struct winsys_handle *whandle, unsigned *out_stride)
 789 {
 790    struct etna_screen *screen = etna_screen(pscreen);
 791    struct etna_bo *bo;
 792
 793    if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
 794       bo = etna_bo_from_name(screen->dev, whandle->handle);
 795    } else if (whandle->type == DRM_API_HANDLE_TYPE_FD) {
 796       bo = etna_bo_from_dmabuf(screen->dev, whandle->handle);
 797    } else {
 798       DBG("Attempt to import unsupported handle type %d", whandle->type);
 799       return NULL;
 800    }
 801
 802    if (!bo) {
 803       DBG("ref name 0x%08x failed", whandle->handle);
 804       return NULL;
 805    }
 806
 807    *out_stride = whandle->stride;
 808
 809    return bo;
 810 }
 811
 812 struct pipe_screen *
 813 etna_screen_create(struct etna_device *dev, struct etna_gpu *gpu,
 814                    struct renderonly *ro)
 815 {
 816    struct etna_screen *screen = CALLOC_STRUCT(etna_screen);
 817    struct pipe_screen *pscreen;
 818    drmVersionPtr version;
 819    uint64_t val;
 820
 821    if (!screen)
 822       return NULL;
 823
 824    pscreen = &screen->base;
 825    screen->dev = dev;
 826    screen->gpu = gpu;
 827    screen->ro = renderonly_dup(ro);
 828    screen->refcnt = 1;
 829
 830    if (!screen->ro) {
 831       DBG("could not create renderonly object");
 832       goto fail;
 833    }
 834
 835    version = drmGetVersion(screen->ro->gpu_fd);
 836    screen->drm_version = ETNA_DRM_VERSION(version->version_major,
 837                                           version->version_minor);
 838    drmFreeVersion(version);
 839
 840    etna_mesa_debug = debug_get_option_etna_mesa_debug();
 841
 842    /* Disable autodisable for correct rendering with TS */
 843    etna_mesa_debug |= ETNA_DBG_NO_AUTODISABLE;
 844
 845    screen->pipe = etna_pipe_new(gpu, ETNA_PIPE_3D);
 846    if (!screen->pipe) {
 847       DBG("could not create 3d pipe");
 848       goto fail;
 849    }
 850
 851    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_MODEL, &val)) {
 852       DBG("could not get ETNA_GPU_MODEL");
 853       goto fail;
 854    }
 855    screen->model = val;
 856
 857    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_REVISION, &val)) {
 858       DBG("could not get ETNA_GPU_REVISION");
 859       goto fail;
 860    }
 861    screen->revision = val;
 862
 863    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_0, &val)) {
 864       DBG("could not get ETNA_GPU_FEATURES_0");
 865       goto fail;
 866    }
 867    screen->features[0] = val;
 868
 869    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_1, &val)) {
 870       DBG("could not get ETNA_GPU_FEATURES_1");
 871       goto fail;
 872    }
 873    screen->features[1] = val;
 874
 875    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_2, &val)) {
 876       DBG("could not get ETNA_GPU_FEATURES_2");
 877       goto fail;
 878    }
 879    screen->features[2] = val;
 880
 881    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_3, &val)) {
 882       DBG("could not get ETNA_GPU_FEATURES_3");
 883       goto fail;
 884    }
 885    screen->features[3] = val;
 886
 887    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_4, &val)) {
 888       DBG("could not get ETNA_GPU_FEATURES_4");
 889       goto fail;
 890    }
 891    screen->features[4] = val;
 892
 893    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_5, &val)) {
 894       DBG("could not get ETNA_GPU_FEATURES_5");
 895       goto fail;
 896    }
 897    screen->features[5] = val;
 898
 899    if (etna_gpu_get_param(screen->gpu, ETNA_GPU_FEATURES_6, &val)) {
 900       DBG("could not get ETNA_GPU_FEATURES_6");
 901       goto fail;
 902    }
 903    screen->features[6] = val;
 904
 905    if (!etna_get_specs(screen))
 906       goto fail;
 907
 908    /* apply debug options that disable individual features */
 909    if (DBG_ENABLED(ETNA_DBG_NO_EARLY_Z))
 910       screen->features[viv_chipFeatures] |= chipFeatures_NO_EARLY_Z;
 911    if (DBG_ENABLED(ETNA_DBG_NO_TS))
 912          screen->features[viv_chipFeatures] &= ~chipFeatures_FAST_CLEAR;
 913    if (DBG_ENABLED(ETNA_DBG_NO_AUTODISABLE))
 914       screen->features[viv_chipMinorFeatures1] &= ~chipMinorFeatures1_AUTO_DISABLE;
 915    if (DBG_ENABLED(ETNA_DBG_NO_SUPERTILE))
 916       screen->specs.can_supertile = 0;
 917
 918    pscreen->destroy = etna_screen_destroy;
 919    pscreen->get_param = etna_screen_get_param;
 920    pscreen->get_paramf = etna_screen_get_paramf;
 921    pscreen->get_shader_param = etna_screen_get_shader_param;
 922
 923    pscreen->get_name = etna_screen_get_name;
 924    pscreen->get_vendor = etna_screen_get_vendor;
 925    pscreen->get_device_vendor = etna_screen_get_device_vendor;
 926
 927    pscreen->get_timestamp = etna_screen_get_timestamp;
 928    pscreen->context_create = etna_context_create;
 929    pscreen->is_format_supported = etna_screen_is_format_supported;
 930    pscreen->query_dmabuf_modifiers = etna_screen_query_dmabuf_modifiers;
 931
 932    etna_fence_screen_init(pscreen);
 933    etna_query_screen_init(pscreen);
 934    etna_resource_screen_init(pscreen);
 935
 936    slab_create_parent(&screen->transfer_pool, sizeof(struct etna_transfer), 16);
 937
 938    return pscreen;
 939
 940 fail:
 941    etna_screen_destroy(pscreen);
 942    return NULL;
 943 }