src/gallium/drivers/panfrost/pan_screen.c

   1 /*
   2  * Copyright (C) 2008 VMware, Inc.
   3  * Copyright (C) 2014 Broadcom
   4  * Copyright (C) 2018 Alyssa Rosenzweig
   5  * Copyright (C) 2019 Collabora, Ltd.
   6  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  25  * SOFTWARE.
  26  *
  27  */
  28
  29 #include "util/u_debug.h"
  30 #include "util/u_memory.h"
  31 #include "util/format/u_format.h"
  32 #include "util/format/u_format_s3tc.h"
  33 #include "util/u_video.h"
  34 #include "util/u_screen.h"
  35 #include "util/os_time.h"
  36 #include "util/u_process.h"
  37 #include "pipe/p_defines.h"
  38 #include "pipe/p_screen.h"
  39 #include "draw/draw_context.h"
  40
  41 #include <fcntl.h>
  42
  43 #include "drm-uapi/drm_fourcc.h"
  44 #include "drm-uapi/panfrost_drm.h"
  45
  46 #include "pan_bo.h"
  47 #include "pan_screen.h"
  48 #include "pan_resource.h"
  49 #include "pan_public.h"
  50 #include "pan_util.h"
  51 #include "pandecode/decode.h"
  52
  53 #include "pan_context.h"
  54 #include "midgard/midgard_compile.h"
  55 #include "bifrost/bifrost_compile.h"
  56 #include "panfrost-quirks.h"
  57
  58 static const struct debug_named_value debug_options[] = {
  59         {"msgs",      PAN_DBG_MSGS,     "Print debug messages"},
  60         {"trace",     PAN_DBG_TRACE,    "Trace the command stream"},
  61         {"deqp",      PAN_DBG_DEQP,     "Hacks for dEQP"},
  62         {"afbc",      PAN_DBG_AFBC,     "Enable non-conformant AFBC impl"},
  63         {"sync",      PAN_DBG_SYNC,     "Wait for each job's completion and check for any GPU fault"},
  64         {"precompile", PAN_DBG_PRECOMPILE, "Precompile shaders for shader-db"},
  65         {"gles3",     PAN_DBG_GLES3,    "Enable experimental GLES3 implementation"},
  66         {"fp16",     PAN_DBG_FP16,     "Enable buggy experimental (don't use!) fp16"},
  67         {"bifrost",   PAN_DBG_BIFROST, "Enable experimental Mali G31 and G52 support"},
  68         {"gl3",       PAN_DBG_GL3,      "Enable experimental GL 3.x implementation, up to 3.3"},
  69         DEBUG_NAMED_VALUE_END
  70 };
  71
  72 DEBUG_GET_ONCE_FLAGS_OPTION(pan_debug, "PAN_MESA_DEBUG", debug_options, 0)
  73
  74 int pan_debug = 0;
  75
  76 static const char *
  77 panfrost_get_name(struct pipe_screen *screen)
  78 {
  79         return panfrost_model_name(pan_device(screen)->gpu_id);
  80 }
  81
  82 static const char *
  83 panfrost_get_vendor(struct pipe_screen *screen)
  84 {
  85         return "Panfrost";
  86 }
  87
  88 static const char *
  89 panfrost_get_device_vendor(struct pipe_screen *screen)
  90 {
  91         return "Arm";
  92 }
  93
  94 static int
  95 panfrost_get_param(struct pipe_screen *screen, enum pipe_cap param)
  96 {
  97         /* We expose in-dev stuff for dEQP that we don't want apps to use yet */
  98         bool is_deqp = pan_debug & PAN_DBG_DEQP;
  99         struct panfrost_device *dev = pan_device(screen);
 100
 101         /* Our GL 3.x implementation is WIP */
 102         bool is_gl3 = pan_debug & PAN_DBG_GL3;
 103         is_gl3 |= is_deqp;
 104
 105         /* Same with GLES 3 */
 106         bool is_gles3 = pan_debug & PAN_DBG_GLES3;
 107         is_gles3 |= is_gl3;
 108
 109         switch (param) {
 110         case PIPE_CAP_NPOT_TEXTURES:
 111         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 112         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
 113         case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
 114         case PIPE_CAP_VERTEX_SHADER_SATURATE:
 115         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 116         case PIPE_CAP_POINT_SPRITE:
 117         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 118         case PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE:
 119                 return 1;
 120
 121         case PIPE_CAP_MAX_RENDER_TARGETS:
 122                 return is_gles3 ? 4 : 1;
 123
 124         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 125                 return is_gl3 ? 1 : 0;
 126
 127         /* Throttling frames breaks pipelining */
 128         case PIPE_CAP_THROTTLE:
 129                 return 0;
 130
 131         case PIPE_CAP_OCCLUSION_QUERY:
 132                 return 1;
 133         case PIPE_CAP_QUERY_TIME_ELAPSED:
 134         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 135         case PIPE_CAP_QUERY_SO_OVERFLOW:
 136                 return 0;
 137
 138         case PIPE_CAP_TEXTURE_SWIZZLE:
 139                 return 1;
 140
 141         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 142         case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
 143                 return 1;
 144
 145         case PIPE_CAP_TGSI_INSTANCEID:
 146         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 147         case PIPE_CAP_PRIMITIVE_RESTART:
 148         case PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX:
 149                 return 1;
 150
 151         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 152                 return is_gles3 ? 4 : 0;
 153         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 154         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 155                 return is_gles3 ? 64 : 0;
 156         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 157                 return 1;
 158
 159         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 160                 return 256;
 161
 162         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 163         case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
 164                 return is_gl3 ? 330 : (is_gles3 ? 140 : 120);
 165         case PIPE_CAP_ESSL_FEATURE_LEVEL:
 166                 return is_gles3 ? 300 : 120;
 167
 168         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 169                 return 16;
 170
 171         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 172                 return is_gles3;
 173
 174         /* For faking GLES 3.1 for dEQP-GLES31 */
 175         case PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS:
 176         case PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS:
 177         case PIPE_CAP_IMAGE_LOAD_FORMATTED:
 178         case PIPE_CAP_CUBE_MAP_ARRAY:
 179                 return is_deqp;
 180
 181         /* For faking compute shaders */
 182         case PIPE_CAP_COMPUTE:
 183                 return is_deqp;
 184
 185         case PIPE_CAP_QUERY_TIMESTAMP:
 186         case PIPE_CAP_CONDITIONAL_RENDER:
 187                 return is_gl3;
 188
 189         case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
 190                 return 4096;
 191         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 192         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 193                 return 13;
 194
 195         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 196         case PIPE_CAP_INDEP_BLEND_ENABLE:
 197         case PIPE_CAP_INDEP_BLEND_FUNC:
 198                 return 1;
 199
 200         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 201                 /* Hardware is natively upper left */
 202                 return 0;
 203
 204         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 205         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 206         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 207         case PIPE_CAP_GENERATE_MIPMAP:
 208                 return 1;
 209
 210         /* We would prefer varyings on Midgard, but proper sysvals on Bifrost */
 211         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 212         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 213         case PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL:
 214                 return dev->quirks & IS_BIFROST;
 215
 216         /* I really don't want to set this CAP but let's not swim against the
 217          * tide.. */
 218         case PIPE_CAP_TGSI_TEXCOORD:
 219                 return 1;
 220
 221         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 222         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 223                 return 1;
 224
 225         case PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET:
 226                 return 0xffff;
 227
 228         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 229                 return 1;
 230
 231         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 232                 return 65536;
 233
 234         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 235                 return 0;
 236
 237         case PIPE_CAP_ENDIANNESS:
 238                 return PIPE_ENDIAN_NATIVE;
 239
 240         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 241                 return 1;
 242
 243         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 244                 return -8;
 245
 246         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 247                 return 7;
 248
 249         case PIPE_CAP_VENDOR_ID:
 250         case PIPE_CAP_DEVICE_ID:
 251                 return 0xFFFFFFFF;
 252
 253         case PIPE_CAP_ACCELERATED:
 254         case PIPE_CAP_UMA:
 255         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 256         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 257         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 258         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 259                 return 1;
 260
 261         case PIPE_CAP_VIDEO_MEMORY: {
 262                 uint64_t system_memory;
 263
 264                 if (!os_get_total_physical_memory(&system_memory))
 265                         return 0;
 266
 267                 return (int)(system_memory >> 20);
 268         }
 269
 270         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 271                 return 1;
 272
 273         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 274                 return 4;
 275
 276         case PIPE_CAP_MAX_VARYINGS:
 277                 return 16;
 278
 279         case PIPE_CAP_ALPHA_TEST:
 280         case PIPE_CAP_FLATSHADE:
 281         case PIPE_CAP_TWO_SIDED_COLOR:
 282         case PIPE_CAP_CLIP_PLANES:
 283                 return 0;
 284
 285         case PIPE_CAP_PACKED_STREAM_OUTPUT:
 286                 return 0;
 287
 288         case PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED:
 289         case PIPE_CAP_PSIZ_CLAMPED:
 290                 return 1;
 291
 292         default:
 293                 return u_pipe_screen_get_param_defaults(screen, param);
 294         }
 295 }
 296
 297 static int
 298 panfrost_get_shader_param(struct pipe_screen *screen,
 299                           enum pipe_shader_type shader,
 300                           enum pipe_shader_cap param)
 301 {
 302         bool is_deqp = pan_debug & PAN_DBG_DEQP;
 303         bool is_fp16 = pan_debug & PAN_DBG_FP16;
 304         struct panfrost_device *dev = pan_device(screen);
 305
 306         if (shader != PIPE_SHADER_VERTEX &&
 307             shader != PIPE_SHADER_FRAGMENT &&
 308             !(shader == PIPE_SHADER_COMPUTE && is_deqp))
 309                 return 0;
 310
 311         /* this is probably not totally correct.. but it's a start: */
 312         switch (param) {
 313         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 314         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 315         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 316         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 317                 return 16384;
 318
 319         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 320                 return 1024;
 321
 322         case PIPE_SHADER_CAP_MAX_INPUTS:
 323                 return 16;
 324
 325         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 326                 return shader == PIPE_SHADER_FRAGMENT ? 4 : 16;
 327
 328         case PIPE_SHADER_CAP_MAX_TEMPS:
 329                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 330
 331         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 332                 return 16 * 1024 * sizeof(float);
 333
 334         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 335                 return PAN_MAX_CONST_BUFFERS;
 336
 337         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 338                 return 0;
 339
 340         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 341                 return 1;
 342         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 343                 return 0;
 344
 345         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 346                 return 0;
 347
 348         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 349                 return 1;
 350
 351         case PIPE_SHADER_CAP_SUBROUTINES:
 352                 return 0;
 353
 354         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 355                 return 0;
 356
 357         case PIPE_SHADER_CAP_INTEGERS:
 358                 return 1;
 359
 360         case PIPE_SHADER_CAP_FP16:
 361                 return !(dev->quirks & MIDGARD_BROKEN_FP16) || is_fp16;
 362
 363         case PIPE_SHADER_CAP_FP16_DERIVATIVES:
 364         case PIPE_SHADER_CAP_INT16:
 365         case PIPE_SHADER_CAP_INT64_ATOMICS:
 366         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 367         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 368         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 369         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 370         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 371                 return 0;
 372
 373         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 374         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 375                 return 16; /* XXX: How many? */
 376
 377         case PIPE_SHADER_CAP_PREFERRED_IR:
 378                 return PIPE_SHADER_IR_NIR;
 379
 380         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 381                 return (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_NIR_SERIALIZED);
 382
 383         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 384                 return 32;
 385
 386         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 387         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 388                 return is_deqp ? 8 : 0;
 389         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 390         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 391                 return 0;
 392
 393         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 394         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 395                 return 0;
 396
 397         default:
 398                 DBG("unknown shader param %d\n", param);
 399                 return 0;
 400         }
 401
 402         return 0;
 403 }
 404
 405 static float
 406 panfrost_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
 407 {
 408         switch (param) {
 409         case PIPE_CAPF_MAX_LINE_WIDTH:
 410
 411         /* fall-through */
 412         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 413                 return 255.0; /* arbitrary */
 414
 415         case PIPE_CAPF_MAX_POINT_WIDTH:
 416
 417         /* fall-through */
 418         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 419                 return 1024.0;
 420
 421         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 422                 return 16.0;
 423
 424         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 425                 return 16.0; /* arbitrary */
 426
 427         case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
 428         case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
 429         case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
 430                 return 0.0f;
 431
 432         default:
 433                 debug_printf("Unexpected PIPE_CAPF %d query\n", param);
 434                 return 0.0;
 435         }
 436 }
 437
 438 /**
 439  * Query format support for creating a texture, drawing surface, etc.
 440  * \param format  the format to test
 441  * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
 442  */
 443 static bool
 444 panfrost_is_format_supported( struct pipe_screen *screen,
 445                               enum pipe_format format,
 446                               enum pipe_texture_target target,
 447                               unsigned sample_count,
 448                               unsigned storage_sample_count,
 449                               unsigned bind)
 450 {
 451         const struct util_format_description *format_desc;
 452
 453         assert(target == PIPE_BUFFER ||
 454                target == PIPE_TEXTURE_1D ||
 455                target == PIPE_TEXTURE_1D_ARRAY ||
 456                target == PIPE_TEXTURE_2D ||
 457                target == PIPE_TEXTURE_2D_ARRAY ||
 458                target == PIPE_TEXTURE_RECT ||
 459                target == PIPE_TEXTURE_3D ||
 460                target == PIPE_TEXTURE_CUBE ||
 461                target == PIPE_TEXTURE_CUBE_ARRAY);
 462
 463         format_desc = util_format_description(format);
 464
 465         if (!format_desc)
 466                 return false;
 467
 468         /* MSAA 4x supported, but no more. Technically some revisions of the
 469          * hardware can go up to 16x but we don't support higher modes yet.
 470          * MSAA 2x is notably not supported and gets rounded up to MSAA 4x. */
 471
 472         if (sample_count > 1 && !(pan_debug & (PAN_DBG_GL3 | PAN_DBG_DEQP)))
 473                 return false;
 474
 475         if (!(sample_count == 0 || sample_count == 1 || sample_count == 4))
 476                 return false;
 477
 478         if (MAX2(sample_count, 1) != MAX2(storage_sample_count, 1))
 479                 return false;
 480
 481         /* Don't confuse poorly written apps (workaround dEQP bug) that expect
 482          * more alpha than they ask for */
 483
 484         bool scanout = bind & (PIPE_BIND_SCANOUT | PIPE_BIND_SHARED | PIPE_BIND_DISPLAY_TARGET);
 485         bool renderable = bind & PIPE_BIND_RENDER_TARGET;
 486
 487         if (scanout && renderable && !util_format_is_rgba8_variant(format_desc))
 488                 return false;
 489
 490         if (pan_debug & (PAN_DBG_GL3 | PAN_DBG_DEQP)) {
 491                 if (format_desc->layout == UTIL_FORMAT_LAYOUT_RGTC)
 492                         return true;
 493         }
 494
 495         /* Check we support the format with the given bind */
 496
 497         unsigned relevant_bind = bind &
 498                 ( PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET
 499                 | PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_SAMPLER_VIEW);
 500
 501         struct panfrost_format fmt = panfrost_pipe_format_table[format];
 502         return fmt.hw && ((relevant_bind & ~fmt.bind) == 0);
 503 }
 504
 505 static int
 506 panfrost_get_compute_param(struct pipe_screen *pscreen, enum pipe_shader_ir ir_type,
 507                 enum pipe_compute_cap param, void *ret)
 508 {
 509         const char * const ir = "panfrost";
 510
 511         if (!(pan_debug & PAN_DBG_DEQP))
 512                 return 0;
 513
 514 #define RET(x) do {                  \
 515    if (ret)                          \
 516       memcpy(ret, x, sizeof(x));     \
 517    return sizeof(x);                 \
 518 } while (0)
 519
 520         switch (param) {
 521         case PIPE_COMPUTE_CAP_ADDRESS_BITS:
 522                 RET((uint32_t []){ 64 });
 523
 524         case PIPE_COMPUTE_CAP_IR_TARGET:
 525                 if (ret)
 526                         sprintf(ret, "%s", ir);
 527                 return strlen(ir) * sizeof(char);
 528
 529         case PIPE_COMPUTE_CAP_GRID_DIMENSION:
 530                 RET((uint64_t []) { 3 });
 531
 532         case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
 533                 RET(((uint64_t []) { 65535, 65535, 65535 }));
 534
 535         case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
 536                 RET(((uint64_t []) { 1024, 1024, 64 }));
 537
 538         case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
 539                 RET((uint64_t []) { 1024 });
 540
 541         case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
 542                 RET((uint64_t []) { 1024*1024*512 /* Maybe get memory */ });
 543
 544         case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
 545                 RET((uint64_t []) { 32768 });
 546
 547         case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
 548         case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
 549                 RET((uint64_t []) { 4096 });
 550
 551         case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
 552                 RET((uint64_t []) { 1024*1024*512 /* Maybe get memory */ });
 553
 554         case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
 555                 RET((uint32_t []) { 800 /* MHz -- TODO */ });
 556
 557         case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
 558                 RET((uint32_t []) { 9999 });  // TODO
 559
 560         case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
 561                 RET((uint32_t []) { 1 }); // TODO
 562
 563         case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
 564                 RET((uint32_t []) { 32 });  // TODO
 565
 566         case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
 567                 RET((uint64_t []) { 1024 }); // TODO
 568         }
 569
 570         return 0;
 571 }
 572
 573 static void
 574 panfrost_destroy_screen(struct pipe_screen *pscreen)
 575 {
 576         panfrost_close_device(pan_device(pscreen));
 577         ralloc_free(pscreen);
 578 }
 579
 580 static uint64_t
 581 panfrost_get_timestamp(struct pipe_screen *_screen)
 582 {
 583         return os_time_get_nano();
 584 }
 585
 586 static void
 587 panfrost_fence_reference(struct pipe_screen *pscreen,
 588                          struct pipe_fence_handle **ptr,
 589                          struct pipe_fence_handle *fence)
 590 {
 591         struct panfrost_fence **p = (struct panfrost_fence **)ptr;
 592         struct panfrost_fence *f = (struct panfrost_fence *)fence;
 593         struct panfrost_fence *old = *p;
 594
 595         if (pipe_reference(&(*p)->reference, &f->reference)) {
 596                 util_dynarray_foreach(&old->syncfds, int, fd)
 597                         close(*fd);
 598                 util_dynarray_fini(&old->syncfds);
 599                 free(old);
 600         }
 601         *p = f;
 602 }
 603
 604 static bool
 605 panfrost_fence_finish(struct pipe_screen *pscreen,
 606                       struct pipe_context *ctx,
 607                       struct pipe_fence_handle *fence,
 608                       uint64_t timeout)
 609 {
 610         struct panfrost_device *dev = pan_device(pscreen);
 611         struct panfrost_fence *f = (struct panfrost_fence *)fence;
 612         struct util_dynarray syncobjs;
 613         int ret;
 614
 615         /* All fences were already signaled */
 616         if (!util_dynarray_num_elements(&f->syncfds, int))
 617                 return true;
 618
 619         util_dynarray_init(&syncobjs, NULL);
 620         util_dynarray_foreach(&f->syncfds, int, fd) {
 621                 uint32_t syncobj;
 622
 623                 ret = drmSyncobjCreate(dev->fd, 0, &syncobj);
 624                 assert(!ret);
 625
 626                 ret = drmSyncobjImportSyncFile(dev->fd, syncobj, *fd);
 627                 assert(!ret);
 628                 util_dynarray_append(&syncobjs, uint32_t, syncobj);
 629         }
 630
 631         uint64_t abs_timeout = os_time_get_absolute_timeout(timeout);
 632         if (abs_timeout == OS_TIMEOUT_INFINITE)
 633                 abs_timeout = INT64_MAX;
 634
 635         ret = drmSyncobjWait(dev->fd, util_dynarray_begin(&syncobjs),
 636                              util_dynarray_num_elements(&syncobjs, uint32_t),
 637                              abs_timeout, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL,
 638                              NULL);
 639
 640         util_dynarray_foreach(&syncobjs, uint32_t, syncobj)
 641                 drmSyncobjDestroy(dev->fd, *syncobj);
 642
 643         return ret >= 0;
 644 }
 645
 646 struct panfrost_fence *
 647 panfrost_fence_create(struct panfrost_context *ctx,
 648                       struct util_dynarray *fences)
 649 {
 650         struct panfrost_device *device = pan_device(ctx->base.screen);
 651         struct panfrost_fence *f = calloc(1, sizeof(*f));
 652         if (!f)
 653                 return NULL;
 654
 655         util_dynarray_init(&f->syncfds, NULL);
 656
 657         /* Export fences from all pending batches. */
 658         util_dynarray_foreach(fences, struct panfrost_batch_fence *, fence) {
 659                 int fd = -1;
 660
 661                 /* The fence is already signaled, no need to export it. */
 662                 if ((*fence)->signaled)
 663                         continue;
 664
 665                 drmSyncobjExportSyncFile(device->fd, (*fence)->syncobj, &fd);
 666                 if (fd == -1)
 667                         fprintf(stderr, "export failed: %m\n");
 668
 669                 assert(fd != -1);
 670                 util_dynarray_append(&f->syncfds, int, fd);
 671         }
 672
 673         pipe_reference_init(&f->reference, 1);
 674
 675         return f;
 676 }
 677
 678 static const void *
 679 panfrost_screen_get_compiler_options(struct pipe_screen *pscreen,
 680                                      enum pipe_shader_ir ir,
 681                                      enum pipe_shader_type shader)
 682 {
 683         if (pan_device(pscreen)->quirks & IS_BIFROST)
 684                 return &bifrost_nir_options;
 685         else
 686                 return &midgard_nir_options;
 687 }
 688
 689 struct pipe_screen *
 690 panfrost_create_screen(int fd, struct renderonly *ro)
 691 {
 692         pan_debug = debug_get_option_pan_debug();
 693
 694         /* Blacklist apps known to be buggy under Panfrost */
 695         const char *proc = util_get_process_name();
 696         const char *blacklist[] = {
 697                 "chromium",
 698                 "chrome",
 699         };
 700
 701         for (unsigned i = 0; i < ARRAY_SIZE(blacklist); ++i) {
 702                 if ((strcmp(blacklist[i], proc) == 0))
 703                         return NULL;
 704         }
 705
 706         /* Create the screen */
 707         struct panfrost_screen *screen = rzalloc(NULL, struct panfrost_screen);
 708
 709         if (!screen)
 710                 return NULL;
 711
 712         struct panfrost_device *dev = pan_device(&screen->base);
 713         panfrost_open_device(screen, fd, dev);
 714
 715         if (ro) {
 716                 dev->ro = renderonly_dup(ro);
 717                 if (!dev->ro) {
 718                         DBG("Failed to dup renderonly object\n");
 719                         free(screen);
 720                         return NULL;
 721                 }
 722         }
 723
 724         /* Check if we're loading against a supported GPU model. */
 725
 726         switch (dev->gpu_id) {
 727         case 0x720: /* T720 */
 728         case 0x750: /* T760 */
 729         case 0x820: /* T820 */
 730         case 0x860: /* T860 */
 731                 break;
 732         case 0x7093: /* G31 */
 733         case 0x7212: /* G52 */
 734                 if (pan_debug & PAN_DBG_BIFROST)
 735                         break;
 736
 737                 /* fallthrough */
 738         default:
 739                 /* Fail to load against untested models */
 740                 debug_printf("panfrost: Unsupported model %X", dev->gpu_id);
 741                 panfrost_destroy_screen(&(screen->base));
 742                 return NULL;
 743         }
 744
 745         if (pan_debug & (PAN_DBG_TRACE | PAN_DBG_SYNC))
 746                 pandecode_initialize(!(pan_debug & PAN_DBG_TRACE));
 747
 748         screen->base.destroy = panfrost_destroy_screen;
 749
 750         screen->base.get_name = panfrost_get_name;
 751         screen->base.get_vendor = panfrost_get_vendor;
 752         screen->base.get_device_vendor = panfrost_get_device_vendor;
 753         screen->base.get_param = panfrost_get_param;
 754         screen->base.get_shader_param = panfrost_get_shader_param;
 755         screen->base.get_compute_param = panfrost_get_compute_param;
 756         screen->base.get_paramf = panfrost_get_paramf;
 757         screen->base.get_timestamp = panfrost_get_timestamp;
 758         screen->base.is_format_supported = panfrost_is_format_supported;
 759         screen->base.context_create = panfrost_create_context;
 760         screen->base.get_compiler_options = panfrost_screen_get_compiler_options;
 761         screen->base.fence_reference = panfrost_fence_reference;
 762         screen->base.fence_finish = panfrost_fence_finish;
 763         screen->base.set_damage_region = panfrost_resource_set_damage_region;
 764
 765         panfrost_resource_screen_init(&screen->base);
 766
 767         return &screen->base;
 768 }