src/gallium/drivers/vc4/vc4_screen.c

   1 /*
   2  * Copyright © 2014 Broadcom
   3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include "os/os_misc.h"
  26 #include "pipe/p_defines.h"
  27 #include "pipe/p_screen.h"
  28 #include "pipe/p_state.h"
  29
  30 #include "util/u_debug.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_format.h"
  33
  34 #include "vc4_screen.h"
  35 #include "vc4_context.h"
  36 #include "vc4_resource.h"
  37
  38 static const struct debug_named_value debug_options[] = {
  39         { "cl",       VC4_DEBUG_CL,
  40           "Dump command list during creation" },
  41         { "qpu",      VC4_DEBUG_QPU,
  42           "Dump generated QPU instructions" },
  43         { "qir",      VC4_DEBUG_QIR,
  44           "Dump QPU IR during program compile" },
  45         { "tgsi",     VC4_DEBUG_TGSI,
  46           "Dump TGSI during program compile" },
  47         { "shaderdb", VC4_DEBUG_SHADERDB,
  48           "Dump program compile information for shader-db analysis" },
  49         { "perf",     VC4_DEBUG_PERF,
  50           "Print during performance-related events" },
  51         { "norast",   VC4_DEBUG_NORAST,
  52           "Skip actual hardware execution of commands" },
  53         { "always_flush", VC4_DEBUG_ALWAYS_FLUSH,
  54           "Flush after each draw call" },
  55         { NULL }
  56 };
  57
  58 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  59 uint32_t vc4_debug;
  60
  61 static const char *
  62 vc4_screen_get_name(struct pipe_screen *pscreen)
  63 {
  64         return "VC4";
  65 }
  66
  67 static const char *
  68 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  69 {
  70         return "Broadcom";
  71 }
  72
  73 static void
  74 vc4_screen_destroy(struct pipe_screen *pscreen)
  75 {
  76         free(pscreen);
  77 }
  78
  79 static int
  80 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  81 {
  82         switch (param) {
  83                 /* Supported features (boolean caps). */
  84         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  85         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  86         case PIPE_CAP_NPOT_TEXTURES:
  87         case PIPE_CAP_USER_CONSTANT_BUFFERS:
  88         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  89         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  90         case PIPE_CAP_TWO_SIDED_STENCIL:
  91                 return 1;
  92
  93                 /* lying for GL 2.0 */
  94         case PIPE_CAP_OCCLUSION_QUERY:
  95         case PIPE_CAP_POINT_SPRITE:
  96                 return 1;
  97
  98         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
  99                 return 256;
 100
 101         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 102                 return 120;
 103
 104         case PIPE_CAP_MAX_VIEWPORTS:
 105                 return 1;
 106
 107         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 108         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 109                 return 1;
 110
 111         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 112                 return 1;
 113
 114                 /* Unsupported features. */
 115         case PIPE_CAP_ANISOTROPIC_FILTER:
 116         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 117         case PIPE_CAP_CUBE_MAP_ARRAY:
 118         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 119         case PIPE_CAP_TEXTURE_SWIZZLE:
 120         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 121         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 122         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 123         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 124         case PIPE_CAP_TGSI_INSTANCEID:
 125         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 126         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 127         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 128         case PIPE_CAP_COMPUTE:
 129         case PIPE_CAP_START_INSTANCE:
 130         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 131         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 132         case PIPE_CAP_TGSI_TEXCOORD:
 133         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 134         case PIPE_CAP_CONDITIONAL_RENDER:
 135         case PIPE_CAP_PRIMITIVE_RESTART:
 136         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 137         case PIPE_CAP_TEXTURE_BARRIER:
 138         case PIPE_CAP_SM3:
 139         case PIPE_CAP_INDEP_BLEND_ENABLE:
 140         case PIPE_CAP_INDEP_BLEND_FUNC:
 141         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 142         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 143         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 144         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 145         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 146         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 147         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 148         case PIPE_CAP_USER_VERTEX_BUFFERS:
 149         case PIPE_CAP_USER_INDEX_BUFFERS:
 150         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 151         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 152         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 153         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 154         case PIPE_CAP_TEXTURE_GATHER_SM5:
 155         case PIPE_CAP_FAKE_SW_MSAA:
 156         case PIPE_CAP_TEXTURE_QUERY_LOD:
 157         case PIPE_CAP_SAMPLE_SHADING:
 158         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 159         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 160         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 161         case PIPE_CAP_MAX_TEXEL_OFFSET:
 162         case PIPE_CAP_MAX_VERTEX_STREAMS:
 163         case PIPE_CAP_DRAW_INDIRECT:
 164         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 165         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 166         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 167         case PIPE_CAP_CLIP_HALFZ:
 168                 return 0;
 169
 170                 /* Stream output. */
 171         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 172         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 173         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 174         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 175                 return 0;
 176
 177                 /* Geometry shader output, unsupported. */
 178         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 179         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 180                 return 0;
 181
 182                 /* Texturing. */
 183         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 184         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 185                 return VC4_MAX_MIP_LEVELS;
 186         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 187                 /* Note: Not supported in hardware, just faking it. */
 188                 return 5;
 189         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 190                 return 0;
 191
 192                 /* Render targets. */
 193         case PIPE_CAP_MAX_RENDER_TARGETS:
 194                 return 1;
 195
 196                 /* Queries. */
 197         case PIPE_CAP_QUERY_TIME_ELAPSED:
 198         case PIPE_CAP_QUERY_TIMESTAMP:
 199                 return 0;
 200
 201         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 202         case PIPE_CAP_MIN_TEXEL_OFFSET:
 203                 return 0;
 204
 205         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 206                 return 2048;
 207
 208         case PIPE_CAP_ENDIANNESS:
 209                 return PIPE_ENDIAN_LITTLE;
 210
 211         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 212                 return 64;
 213
 214         case PIPE_CAP_VENDOR_ID:
 215                 return 0x14E4;
 216         case PIPE_CAP_DEVICE_ID:
 217                 return 0xFFFFFFFF;
 218         case PIPE_CAP_ACCELERATED:
 219                 return 1;
 220         case PIPE_CAP_VIDEO_MEMORY: {
 221                 uint64_t system_memory;
 222
 223                 if (!os_get_total_physical_memory(&system_memory))
 224                         return 0;
 225
 226                 return (int)(system_memory >> 20);
 227         }
 228         case PIPE_CAP_UMA:
 229                 return 1;
 230
 231         default:
 232                 fprintf(stderr, "unknown param %d\n", param);
 233                 return 0;
 234         }
 235 }
 236
 237 static float
 238 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 239 {
 240         switch (param) {
 241         case PIPE_CAPF_MAX_LINE_WIDTH:
 242         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 243                 return 32;
 244
 245         case PIPE_CAPF_MAX_POINT_WIDTH:
 246         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 247                 return 512.0f;
 248
 249         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 250                 return 0.0f;
 251         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 252                 return 0.0f;
 253         case PIPE_CAPF_GUARD_BAND_LEFT:
 254         case PIPE_CAPF_GUARD_BAND_TOP:
 255         case PIPE_CAPF_GUARD_BAND_RIGHT:
 256         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 257                 return 0.0f;
 258         default:
 259                 fprintf(stderr, "unknown paramf %d\n", param);
 260                 return 0;
 261         }
 262 }
 263
 264 static int
 265 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 266                            enum pipe_shader_cap param)
 267 {
 268         if (shader != PIPE_SHADER_VERTEX &&
 269             shader != PIPE_SHADER_FRAGMENT) {
 270                 return 0;
 271         }
 272
 273         /* this is probably not totally correct.. but it's a start: */
 274         switch (param) {
 275         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 276         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 277         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 278         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 279                 return 16384;
 280         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 281                 return 0;
 282         case PIPE_SHADER_CAP_MAX_INPUTS:
 283                 if (shader == PIPE_SHADER_FRAGMENT)
 284                         return 8;
 285                 else
 286                         return 16;
 287         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 288                 return shader == PIPE_SHADER_FRAGMENT ? 1 : 8;
 289         case PIPE_SHADER_CAP_MAX_TEMPS:
 290                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 291         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 292                 return 16 * 1024 * sizeof(float);
 293         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 294                 return 1;
 295         case PIPE_SHADER_CAP_MAX_PREDS:
 296                 return 0; /* nothing uses this */
 297         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 298                 return 0;
 299         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 300         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 301         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 302                 return 0;
 303         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 304                 return 1;
 305         case PIPE_SHADER_CAP_SUBROUTINES:
 306                 return 0;
 307         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 308                 return 0;
 309         case PIPE_SHADER_CAP_INTEGERS:
 310                 return 1;
 311         case PIPE_SHADER_CAP_DOUBLES:
 312                 return 0;
 313         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 314         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 315                 return VC4_MAX_TEXTURE_SAMPLERS;
 316         case PIPE_SHADER_CAP_PREFERRED_IR:
 317                 return PIPE_SHADER_IR_TGSI;
 318         default:
 319                 fprintf(stderr, "unknown shader param %d\n", param);
 320                 return 0;
 321         }
 322         return 0;
 323 }
 324
 325 static boolean
 326 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 327                                enum pipe_format format,
 328                                enum pipe_texture_target target,
 329                                unsigned sample_count,
 330                                unsigned usage)
 331 {
 332         unsigned retval = 0;
 333
 334         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 335             (sample_count > 1) ||
 336             !util_format_is_supported(format, usage)) {
 337                 return FALSE;
 338         }
 339
 340         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 341                 switch (format) {
 342                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
 343                 case PIPE_FORMAT_R32G32B32_FLOAT:
 344                 case PIPE_FORMAT_R32G32_FLOAT:
 345                 case PIPE_FORMAT_R32_FLOAT:
 346                 case PIPE_FORMAT_R8G8B8A8_UNORM:
 347                 case PIPE_FORMAT_R8G8B8_UNORM:
 348                 case PIPE_FORMAT_R8G8_UNORM:
 349                 case PIPE_FORMAT_R8_UNORM:
 350                 case PIPE_FORMAT_R8G8B8A8_SNORM:
 351                 case PIPE_FORMAT_R8G8B8_SNORM:
 352                 case PIPE_FORMAT_R8G8_SNORM:
 353                 case PIPE_FORMAT_R8_SNORM:
 354                         retval |= PIPE_BIND_VERTEX_BUFFER;
 355                         break;
 356                 default:
 357                         break;
 358                 }
 359         }
 360
 361         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 362             vc4_rt_format_supported(format)) {
 363                 retval |= PIPE_BIND_RENDER_TARGET;
 364         }
 365
 366         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 367             (vc4_tex_format_supported(format))) {
 368                 retval |= PIPE_BIND_SAMPLER_VIEW;
 369         }
 370
 371         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 372             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 373              format == PIPE_FORMAT_X8Z24_UNORM)) {
 374                 retval |= PIPE_BIND_DEPTH_STENCIL;
 375         }
 376
 377         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 378             (format == PIPE_FORMAT_I8_UINT ||
 379              format == PIPE_FORMAT_I16_UINT)) {
 380                 retval |= PIPE_BIND_INDEX_BUFFER;
 381         }
 382
 383         if (usage & PIPE_BIND_TRANSFER_READ)
 384                 retval |= PIPE_BIND_TRANSFER_READ;
 385         if (usage & PIPE_BIND_TRANSFER_WRITE)
 386                 retval |= PIPE_BIND_TRANSFER_WRITE;
 387
 388 #if 0
 389         if (retval != usage) {
 390                 fprintf(stderr,
 391                         "not supported: format=%s, target=%d, sample_count=%d, "
 392                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 393                         target, sample_count, usage, retval);
 394         }
 395 #endif
 396
 397         return retval == usage;
 398 }
 399
 400 struct pipe_screen *
 401 vc4_screen_create(int fd)
 402 {
 403         struct vc4_screen *screen = CALLOC_STRUCT(vc4_screen);
 404         struct pipe_screen *pscreen;
 405
 406         pscreen = &screen->base;
 407
 408         pscreen->destroy = vc4_screen_destroy;
 409         pscreen->get_param = vc4_screen_get_param;
 410         pscreen->get_paramf = vc4_screen_get_paramf;
 411         pscreen->get_shader_param = vc4_screen_get_shader_param;
 412         pscreen->context_create = vc4_context_create;
 413         pscreen->is_format_supported = vc4_screen_is_format_supported;
 414
 415         screen->fd = fd;
 416
 417         vc4_debug = debug_get_option_vc4_debug();
 418         if (vc4_debug & VC4_DEBUG_SHADERDB)
 419                 vc4_debug |= VC4_DEBUG_NORAST;
 420
 421 #if USE_VC4_SIMULATOR
 422         vc4_simulator_init(screen);
 423 #endif
 424
 425         vc4_resource_screen_init(pscreen);
 426
 427         pscreen->get_name = vc4_screen_get_name;
 428         pscreen->get_vendor = vc4_screen_get_vendor;
 429
 430         return pscreen;
 431 }
 432
 433 boolean
 434 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 435                          struct vc4_bo *bo,
 436                          unsigned stride,
 437                          struct winsys_handle *whandle)
 438 {
 439         whandle->stride = stride;
 440
 441         switch (whandle->type) {
 442         case DRM_API_HANDLE_TYPE_SHARED:
 443                 return vc4_bo_flink(bo, &whandle->handle);
 444         case DRM_API_HANDLE_TYPE_KMS:
 445                 whandle->handle = bo->handle;
 446                 return TRUE;
 447         }
 448
 449         return FALSE;
 450 }
 451
 452 struct vc4_bo *
 453 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 454                           struct winsys_handle *whandle,
 455                           unsigned *out_stride)
 456 {
 457         struct vc4_screen *screen = vc4_screen(pscreen);
 458         struct vc4_bo *bo;
 459
 460         if (whandle->type != DRM_API_HANDLE_TYPE_SHARED) {
 461                 fprintf(stderr,
 462                         "Attempt to import unsupported handle type %d\n",
 463                         whandle->type);
 464                 return NULL;
 465         }
 466
 467         bo = vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 468         if (!bo) {
 469                 fprintf(stderr, "Open name %d failed\n", whandle->handle);
 470                 return NULL;
 471         }
 472
 473         *out_stride = whandle->stride;
 474
 475         return bo;
 476 }