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                 return 0;
 168
 169                 /* Stream output. */
 170         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 171         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 172         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 173         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 174                 return 0;
 175
 176                 /* Geometry shader output, unsupported. */
 177         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 178         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 179                 return 0;
 180
 181                 /* Texturing. */
 182         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 183         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 184                 return VC4_MAX_MIP_LEVELS;
 185         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 186                 /* Note: Not supported in hardware, just faking it. */
 187                 return 5;
 188         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 189                 return 0;
 190
 191                 /* Render targets. */
 192         case PIPE_CAP_MAX_RENDER_TARGETS:
 193                 return 1;
 194
 195                 /* Queries. */
 196         case PIPE_CAP_QUERY_TIME_ELAPSED:
 197         case PIPE_CAP_QUERY_TIMESTAMP:
 198                 return 0;
 199
 200         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 201         case PIPE_CAP_MIN_TEXEL_OFFSET:
 202                 return 0;
 203
 204         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 205                 return 2048;
 206
 207         case PIPE_CAP_ENDIANNESS:
 208                 return PIPE_ENDIAN_LITTLE;
 209
 210         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 211                 return 64;
 212
 213         case PIPE_CAP_VENDOR_ID:
 214                 return 0x14E4;
 215         case PIPE_CAP_DEVICE_ID:
 216                 return 0xFFFFFFFF;
 217         case PIPE_CAP_ACCELERATED:
 218                 return 1;
 219         case PIPE_CAP_VIDEO_MEMORY: {
 220                 uint64_t system_memory;
 221
 222                 if (!os_get_total_physical_memory(&system_memory))
 223                         return 0;
 224
 225                 return (int)(system_memory >> 20);
 226         }
 227         case PIPE_CAP_UMA:
 228                 return 1;
 229
 230         default:
 231                 fprintf(stderr, "unknown param %d\n", param);
 232                 return 0;
 233         }
 234 }
 235
 236 static float
 237 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 238 {
 239         switch (param) {
 240         case PIPE_CAPF_MAX_LINE_WIDTH:
 241         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 242         case PIPE_CAPF_MAX_POINT_WIDTH:
 243         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 244                 return 8192.0f;
 245         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 246                 return 0.0f;
 247         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 248                 return 0.0f;
 249         case PIPE_CAPF_GUARD_BAND_LEFT:
 250         case PIPE_CAPF_GUARD_BAND_TOP:
 251         case PIPE_CAPF_GUARD_BAND_RIGHT:
 252         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 253                 return 0.0f;
 254         default:
 255                 fprintf(stderr, "unknown paramf %d\n", param);
 256                 return 0;
 257         }
 258 }
 259
 260 static int
 261 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 262                            enum pipe_shader_cap param)
 263 {
 264         if (shader != PIPE_SHADER_VERTEX &&
 265             shader != PIPE_SHADER_FRAGMENT) {
 266                 return 0;
 267         }
 268
 269         /* this is probably not totally correct.. but it's a start: */
 270         switch (param) {
 271         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 272         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 273         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 274         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 275                 return 16384;
 276         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 277                 return 0;
 278         case PIPE_SHADER_CAP_MAX_INPUTS:
 279                 return 16;
 280         case PIPE_SHADER_CAP_MAX_TEMPS:
 281                 return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
 282         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 283                 return 16 * 1024 * sizeof(float);
 284         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 285                 return 1;
 286         case PIPE_SHADER_CAP_MAX_PREDS:
 287                 return 0; /* nothing uses this */
 288         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 289                 return 0;
 290         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 291         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 292         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 293         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 294                 return 0;
 295         case PIPE_SHADER_CAP_SUBROUTINES:
 296                 return 0;
 297         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 298                 return 0;
 299         case PIPE_SHADER_CAP_INTEGERS:
 300                 return 1;
 301         case PIPE_SHADER_CAP_DOUBLES:
 302                 return 0;
 303         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 304         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 305                 return VC4_MAX_TEXTURE_SAMPLERS;
 306         case PIPE_SHADER_CAP_PREFERRED_IR:
 307                 return PIPE_SHADER_IR_TGSI;
 308         default:
 309                 fprintf(stderr, "unknown shader param %d\n", param);
 310                 return 0;
 311         }
 312         return 0;
 313 }
 314
 315 static boolean
 316 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 317                                enum pipe_format format,
 318                                enum pipe_texture_target target,
 319                                unsigned sample_count,
 320                                unsigned usage)
 321 {
 322         unsigned retval = 0;
 323
 324         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 325             (sample_count > 1) ||
 326             !util_format_is_supported(format, usage)) {
 327                 return FALSE;
 328         }
 329
 330         if (usage & PIPE_BIND_VERTEX_BUFFER &&
 331             (format == PIPE_FORMAT_R32G32B32A32_FLOAT ||
 332              format == PIPE_FORMAT_R32G32B32_FLOAT ||
 333              format == PIPE_FORMAT_R32G32_FLOAT ||
 334              format == PIPE_FORMAT_R32_FLOAT)) {
 335                 retval |= PIPE_BIND_VERTEX_BUFFER;
 336         }
 337
 338         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 339             vc4_rt_format_supported(format)) {
 340                 retval |= PIPE_BIND_RENDER_TARGET;
 341         }
 342
 343         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 344             (vc4_tex_format_supported(format))) {
 345                 retval |= PIPE_BIND_SAMPLER_VIEW;
 346         }
 347
 348         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 349             (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
 350              format == PIPE_FORMAT_X8Z24_UNORM)) {
 351                 retval |= PIPE_BIND_DEPTH_STENCIL;
 352         }
 353
 354         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 355             (format == PIPE_FORMAT_I8_UINT ||
 356              format == PIPE_FORMAT_I16_UINT)) {
 357                 retval |= PIPE_BIND_INDEX_BUFFER;
 358         }
 359
 360         if (usage & PIPE_BIND_TRANSFER_READ)
 361                 retval |= PIPE_BIND_TRANSFER_READ;
 362         if (usage & PIPE_BIND_TRANSFER_WRITE)
 363                 retval |= PIPE_BIND_TRANSFER_WRITE;
 364
 365 #if 0
 366         if (retval != usage) {
 367                 fprintf(stderr,
 368                         "not supported: format=%s, target=%d, sample_count=%d, "
 369                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 370                         target, sample_count, usage, retval);
 371         }
 372 #endif
 373
 374         return retval == usage;
 375 }
 376
 377 struct pipe_screen *
 378 vc4_screen_create(int fd)
 379 {
 380         struct vc4_screen *screen = CALLOC_STRUCT(vc4_screen);
 381         struct pipe_screen *pscreen;
 382
 383         pscreen = &screen->base;
 384
 385         pscreen->destroy = vc4_screen_destroy;
 386         pscreen->get_param = vc4_screen_get_param;
 387         pscreen->get_paramf = vc4_screen_get_paramf;
 388         pscreen->get_shader_param = vc4_screen_get_shader_param;
 389         pscreen->context_create = vc4_context_create;
 390         pscreen->is_format_supported = vc4_screen_is_format_supported;
 391
 392         screen->fd = fd;
 393
 394         vc4_debug = debug_get_option_vc4_debug();
 395         if (vc4_debug & VC4_DEBUG_SHADERDB)
 396                 vc4_debug |= VC4_DEBUG_NORAST;
 397
 398 #if USE_VC4_SIMULATOR
 399         vc4_simulator_init(screen);
 400 #endif
 401
 402         vc4_resource_screen_init(pscreen);
 403
 404         pscreen->get_name = vc4_screen_get_name;
 405         pscreen->get_vendor = vc4_screen_get_vendor;
 406
 407         return pscreen;
 408 }
 409
 410 boolean
 411 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 412                          struct vc4_bo *bo,
 413                          unsigned stride,
 414                          struct winsys_handle *whandle)
 415 {
 416         whandle->stride = stride;
 417
 418         switch (whandle->type) {
 419         case DRM_API_HANDLE_TYPE_SHARED:
 420                 return vc4_bo_flink(bo, &whandle->handle);
 421         case DRM_API_HANDLE_TYPE_KMS:
 422                 whandle->handle = bo->handle;
 423                 return TRUE;
 424         }
 425
 426         return FALSE;
 427 }
 428
 429 struct vc4_bo *
 430 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 431                           struct winsys_handle *whandle,
 432                           unsigned *out_stride)
 433 {
 434         struct vc4_screen *screen = vc4_screen(pscreen);
 435         struct vc4_bo *bo;
 436
 437         if (whandle->type != DRM_API_HANDLE_TYPE_SHARED) {
 438                 fprintf(stderr,
 439                         "Attempt to import unsupported handle type %d\n",
 440                         whandle->type);
 441                 return NULL;
 442         }
 443
 444         bo = vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 445         if (!bo) {
 446                 fprintf(stderr, "Open name %d failed\n", whandle->handle);
 447                 return NULL;
 448         }
 449
 450         *out_stride = whandle->stride;
 451
 452         return bo;
 453 }