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 };
  54
  55 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  56 uint32_t vc4_debug;
  57
  58 static const char *
  59 vc4_screen_get_name(struct pipe_screen *pscreen)
  60 {
  61         return "VC4";
  62 }
  63
  64 static const char *
  65 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  66 {
  67         return "Broadcom";
  68 }
  69
  70 static void
  71 vc4_screen_destroy(struct pipe_screen *pscreen)
  72 {
  73         free(pscreen);
  74 }
  75
  76 static int
  77 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  78 {
  79         switch (param) {
  80                 /* Supported features (boolean caps). */
  81         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  82         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  83         case PIPE_CAP_NPOT_TEXTURES:
  84         case PIPE_CAP_USER_CONSTANT_BUFFERS:
  85         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  86         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  87         case PIPE_CAP_TWO_SIDED_STENCIL:
  88                 return 1;
  89
  90                 /* lying for GL 2.0 */
  91         case PIPE_CAP_OCCLUSION_QUERY:
  92         case PIPE_CAP_POINT_SPRITE:
  93                 return 1;
  94
  95         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
  96                 return 256;
  97
  98         case PIPE_CAP_GLSL_FEATURE_LEVEL:
  99                 return 120;
 100
 101         case PIPE_CAP_MAX_VIEWPORTS:
 102                 return 1;
 103
 104         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 105         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 106                 return 1;
 107
 108                 /* Unsupported features. */
 109         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 110         case PIPE_CAP_ANISOTROPIC_FILTER:
 111         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 112         case PIPE_CAP_CUBE_MAP_ARRAY:
 113         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 114         case PIPE_CAP_TEXTURE_SWIZZLE:
 115         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 116         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 117         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 118         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 119         case PIPE_CAP_TGSI_INSTANCEID:
 120         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 121         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 122         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 123         case PIPE_CAP_COMPUTE:
 124         case PIPE_CAP_START_INSTANCE:
 125         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 126         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 127         case PIPE_CAP_TGSI_TEXCOORD:
 128         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 129         case PIPE_CAP_CONDITIONAL_RENDER:
 130         case PIPE_CAP_PRIMITIVE_RESTART:
 131         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 132         case PIPE_CAP_TEXTURE_BARRIER:
 133         case PIPE_CAP_SM3:
 134         case PIPE_CAP_INDEP_BLEND_ENABLE:
 135         case PIPE_CAP_INDEP_BLEND_FUNC:
 136         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 137         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 138         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 139         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 140         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 141         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 142         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 143         case PIPE_CAP_USER_VERTEX_BUFFERS:
 144         case PIPE_CAP_USER_INDEX_BUFFERS:
 145         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 146         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 147         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 148         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 149         case PIPE_CAP_TEXTURE_GATHER_SM5:
 150         case PIPE_CAP_FAKE_SW_MSAA:
 151         case PIPE_CAP_TEXTURE_QUERY_LOD:
 152         case PIPE_CAP_SAMPLE_SHADING:
 153         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 154         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 155         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 156         case PIPE_CAP_MAX_TEXEL_OFFSET:
 157         case PIPE_CAP_MAX_VERTEX_STREAMS:
 158         case PIPE_CAP_DRAW_INDIRECT:
 159         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 160         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 161                 return 0;
 162
 163                 /* Stream output. */
 164         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 165         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 166         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 167         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 168                 return 0;
 169
 170                 /* Geometry shader output, unsupported. */
 171         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 172         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 173                 return 0;
 174
 175                 /* Texturing. */
 176         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 177         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 178                 return VC4_MAX_MIP_LEVELS;
 179         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 180                 /* Note: Not supported in hardware, just faking it. */
 181                 return 5;
 182         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 183                 return 0;
 184
 185                 /* Render targets. */
 186         case PIPE_CAP_MAX_RENDER_TARGETS:
 187                 return 1;
 188
 189                 /* Queries. */
 190         case PIPE_CAP_QUERY_TIME_ELAPSED:
 191         case PIPE_CAP_QUERY_TIMESTAMP:
 192                 return 0;
 193
 194         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 195         case PIPE_CAP_MIN_TEXEL_OFFSET:
 196                 return 0;
 197
 198         case PIPE_CAP_ENDIANNESS:
 199                 return PIPE_ENDIAN_LITTLE;
 200
 201         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 202                 return 64;
 203
 204         case PIPE_CAP_VENDOR_ID:
 205                 return 0x14E4;
 206         case PIPE_CAP_DEVICE_ID:
 207                 return 0xFFFFFFFF;
 208         case PIPE_CAP_ACCELERATED:
 209                 return 1;
 210         case PIPE_CAP_VIDEO_MEMORY: {
 211                 uint64_t system_memory;
 212
 213                 if (!os_get_total_physical_memory(&system_memory))
 214                         return 0;
 215
 216                 return (int)(system_memory >> 20);
 217         }
 218         case PIPE_CAP_UMA:
 219                 return 1;
 220
 221         default:
 222                 fprintf(stderr, "unknown param %d\n", param);
 223                 return 0;
 224         }
 225 }
 226
 227 static float
 228 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 229 {
 230         switch (param) {
 231         case PIPE_CAPF_MAX_LINE_WIDTH:
 232         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 233         case PIPE_CAPF_MAX_POINT_WIDTH:
 234         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 235                 return 8192.0f;
 236         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 237                 return 0.0f;
 238         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 239                 return 0.0f;
 240         case PIPE_CAPF_GUARD_BAND_LEFT:
 241         case PIPE_CAPF_GUARD_BAND_TOP:
 242         case PIPE_CAPF_GUARD_BAND_RIGHT:
 243         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 244                 return 0.0f;
 245         default:
 246                 fprintf(stderr, "unknown paramf %d\n", param);
 247                 return 0;
 248         }
 249 }
 250
 251 static int
 252 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 253                            enum pipe_shader_cap param)
 254 {
 255         if (shader != PIPE_SHADER_VERTEX &&
 256             shader != PIPE_SHADER_FRAGMENT) {
 257                 return 0;
 258         }
 259
 260         /* this is probably not totally correct.. but it's a start: */
 261         switch (param) {
 262         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 263         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 264         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 265         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 266                 return 16384;
 267         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 268                 return 0;
 269         case PIPE_SHADER_CAP_MAX_INPUTS:
 270                 return 16;
 271         case PIPE_SHADER_CAP_MAX_TEMPS:
 272                 return 64; /* Max native temporaries. */
 273         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 274                 return 64 * sizeof(float[4]);
 275         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 276                 return 1;
 277         case PIPE_SHADER_CAP_MAX_PREDS:
 278                 return 0; /* nothing uses this */
 279         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 280                 return 0;
 281         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 282         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 283         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 284         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 285                 return 0;
 286         case PIPE_SHADER_CAP_SUBROUTINES:
 287                 return 0;
 288         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 289                 return 0;
 290         case PIPE_SHADER_CAP_INTEGERS:
 291         case PIPE_SHADER_CAP_DOUBLES:
 292                 return 0;
 293         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 294         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 295                 return VC4_MAX_TEXTURE_SAMPLERS;
 296         case PIPE_SHADER_CAP_PREFERRED_IR:
 297                 return PIPE_SHADER_IR_TGSI;
 298         default:
 299                 fprintf(stderr, "unknown shader param %d\n", param);
 300                 return 0;
 301         }
 302         return 0;
 303 }
 304
 305 static boolean
 306 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 307                                enum pipe_format format,
 308                                enum pipe_texture_target target,
 309                                unsigned sample_count,
 310                                unsigned usage)
 311 {
 312         unsigned retval = 0;
 313
 314         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 315             (sample_count > 1) ||
 316             !util_format_is_supported(format, usage)) {
 317                 return FALSE;
 318         }
 319
 320         if (usage & PIPE_BIND_VERTEX_BUFFER &&
 321             (format == PIPE_FORMAT_R32G32B32A32_FLOAT ||
 322              format == PIPE_FORMAT_R32G32B32_FLOAT ||
 323              format == PIPE_FORMAT_R32G32_FLOAT ||
 324              format == PIPE_FORMAT_R32_FLOAT)) {
 325                 retval |= PIPE_BIND_VERTEX_BUFFER;
 326         }
 327
 328         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 329             vc4_rt_format_supported(format)) {
 330                 retval |= PIPE_BIND_RENDER_TARGET;
 331         }
 332
 333         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 334             (vc4_tex_format_supported(format))) {
 335                 retval |= PIPE_BIND_SAMPLER_VIEW;
 336         }
 337
 338         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 339             (format == PIPE_FORMAT_Z24_UNORM_S8_UINT ||
 340              format == PIPE_FORMAT_Z24X8_UNORM)) {
 341                 retval |= PIPE_BIND_DEPTH_STENCIL;
 342         }
 343
 344         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 345             (format == PIPE_FORMAT_I8_UINT ||
 346              format == PIPE_FORMAT_I16_UINT)) {
 347                 retval |= PIPE_BIND_INDEX_BUFFER;
 348         }
 349
 350         if (usage & PIPE_BIND_TRANSFER_READ)
 351                 retval |= PIPE_BIND_TRANSFER_READ;
 352         if (usage & PIPE_BIND_TRANSFER_WRITE)
 353                 retval |= PIPE_BIND_TRANSFER_WRITE;
 354
 355 #if 0
 356         if (retval != usage) {
 357                 fprintf(stderr,
 358                         "not supported: format=%s, target=%d, sample_count=%d, "
 359                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 360                         target, sample_count, usage, retval);
 361         }
 362 #endif
 363
 364         return retval == usage;
 365 }
 366
 367 struct pipe_screen *
 368 vc4_screen_create(int fd)
 369 {
 370         struct vc4_screen *screen = CALLOC_STRUCT(vc4_screen);
 371         struct pipe_screen *pscreen;
 372
 373         pscreen = &screen->base;
 374
 375         pscreen->destroy = vc4_screen_destroy;
 376         pscreen->get_param = vc4_screen_get_param;
 377         pscreen->get_paramf = vc4_screen_get_paramf;
 378         pscreen->get_shader_param = vc4_screen_get_shader_param;
 379         pscreen->context_create = vc4_context_create;
 380         pscreen->is_format_supported = vc4_screen_is_format_supported;
 381
 382         screen->fd = fd;
 383
 384         vc4_debug = debug_get_option_vc4_debug();
 385         if (vc4_debug & VC4_DEBUG_SHADERDB)
 386                 vc4_debug |= VC4_DEBUG_NORAST;
 387
 388 #if USE_VC4_SIMULATOR
 389         vc4_simulator_init(screen);
 390 #endif
 391
 392         vc4_resource_screen_init(pscreen);
 393
 394         pscreen->get_name = vc4_screen_get_name;
 395         pscreen->get_vendor = vc4_screen_get_vendor;
 396
 397         return pscreen;
 398 }
 399
 400 boolean
 401 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 402                          struct vc4_bo *bo,
 403                          unsigned stride,
 404                          struct winsys_handle *whandle)
 405 {
 406         whandle->stride = stride;
 407
 408         switch (whandle->type) {
 409         case DRM_API_HANDLE_TYPE_SHARED:
 410                 return vc4_bo_flink(bo, &whandle->handle);
 411         case DRM_API_HANDLE_TYPE_KMS:
 412                 whandle->handle = bo->handle;
 413                 return TRUE;
 414         }
 415
 416         return FALSE;
 417 }
 418
 419 struct vc4_bo *
 420 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 421                           struct winsys_handle *whandle,
 422                           unsigned *out_stride)
 423 {
 424         struct vc4_screen *screen = vc4_screen(pscreen);
 425         struct vc4_bo *bo;
 426
 427         if (whandle->type != DRM_API_HANDLE_TYPE_SHARED) {
 428                 fprintf(stderr,
 429                         "Attempt to import unsupported handle type %d\n",
 430                         whandle->type);
 431                 return NULL;
 432         }
 433
 434         bo = vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 435         if (!bo) {
 436                 fprintf(stderr, "Open name %d failed\n", whandle->handle);
 437                 return NULL;
 438         }
 439
 440         *out_stride = whandle->stride;
 441
 442         return bo;
 443 }