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         { NULL }
  54 };
  55
  56 DEBUG_GET_ONCE_FLAGS_OPTION(vc4_debug, "VC4_DEBUG", debug_options, 0)
  57 uint32_t vc4_debug;
  58
  59 static const char *
  60 vc4_screen_get_name(struct pipe_screen *pscreen)
  61 {
  62         return "VC4";
  63 }
  64
  65 static const char *
  66 vc4_screen_get_vendor(struct pipe_screen *pscreen)
  67 {
  68         return "Broadcom";
  69 }
  70
  71 static void
  72 vc4_screen_destroy(struct pipe_screen *pscreen)
  73 {
  74         free(pscreen);
  75 }
  76
  77 static int
  78 vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
  79 {
  80         switch (param) {
  81                 /* Supported features (boolean caps). */
  82         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
  83         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
  84         case PIPE_CAP_NPOT_TEXTURES:
  85         case PIPE_CAP_USER_CONSTANT_BUFFERS:
  86         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  87         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
  88         case PIPE_CAP_TWO_SIDED_STENCIL:
  89                 return 1;
  90
  91                 /* lying for GL 2.0 */
  92         case PIPE_CAP_OCCLUSION_QUERY:
  93         case PIPE_CAP_POINT_SPRITE:
  94                 return 1;
  95
  96         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
  97                 return 256;
  98
  99         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 100                 return 120;
 101
 102         case PIPE_CAP_MAX_VIEWPORTS:
 103                 return 1;
 104
 105         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 106         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 107                 return 1;
 108
 109                 /* Unsupported features. */
 110         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 111         case PIPE_CAP_ANISOTROPIC_FILTER:
 112         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 113         case PIPE_CAP_CUBE_MAP_ARRAY:
 114         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 115         case PIPE_CAP_TEXTURE_SWIZZLE:
 116         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 117         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 118         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 119         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 120         case PIPE_CAP_TGSI_INSTANCEID:
 121         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 122         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 123         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 124         case PIPE_CAP_COMPUTE:
 125         case PIPE_CAP_START_INSTANCE:
 126         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 127         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 128         case PIPE_CAP_TGSI_TEXCOORD:
 129         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 130         case PIPE_CAP_CONDITIONAL_RENDER:
 131         case PIPE_CAP_PRIMITIVE_RESTART:
 132         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 133         case PIPE_CAP_TEXTURE_BARRIER:
 134         case PIPE_CAP_SM3:
 135         case PIPE_CAP_INDEP_BLEND_ENABLE:
 136         case PIPE_CAP_INDEP_BLEND_FUNC:
 137         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 138         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 139         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 140         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 141         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 142         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 143         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 144         case PIPE_CAP_USER_VERTEX_BUFFERS:
 145         case PIPE_CAP_USER_INDEX_BUFFERS:
 146         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 147         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 148         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 149         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 150         case PIPE_CAP_TEXTURE_GATHER_SM5:
 151         case PIPE_CAP_FAKE_SW_MSAA:
 152         case PIPE_CAP_TEXTURE_QUERY_LOD:
 153         case PIPE_CAP_SAMPLE_SHADING:
 154         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 155         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 156         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 157         case PIPE_CAP_MAX_TEXEL_OFFSET:
 158         case PIPE_CAP_MAX_VERTEX_STREAMS:
 159         case PIPE_CAP_DRAW_INDIRECT:
 160         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 161         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 162                 return 0;
 163
 164                 /* Stream output. */
 165         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 166         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 167         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 168         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 169                 return 0;
 170
 171                 /* Geometry shader output, unsupported. */
 172         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 173         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 174                 return 0;
 175
 176                 /* Texturing. */
 177         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 178         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 179                 return VC4_MAX_MIP_LEVELS;
 180         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 181                 /* Note: Not supported in hardware, just faking it. */
 182                 return 5;
 183         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 184                 return 0;
 185
 186                 /* Render targets. */
 187         case PIPE_CAP_MAX_RENDER_TARGETS:
 188                 return 1;
 189
 190                 /* Queries. */
 191         case PIPE_CAP_QUERY_TIME_ELAPSED:
 192         case PIPE_CAP_QUERY_TIMESTAMP:
 193                 return 0;
 194
 195         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 196         case PIPE_CAP_MIN_TEXEL_OFFSET:
 197                 return 0;
 198
 199         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 200                 return 2048;
 201
 202         case PIPE_CAP_ENDIANNESS:
 203                 return PIPE_ENDIAN_LITTLE;
 204
 205         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 206                 return 64;
 207
 208         case PIPE_CAP_VENDOR_ID:
 209                 return 0x14E4;
 210         case PIPE_CAP_DEVICE_ID:
 211                 return 0xFFFFFFFF;
 212         case PIPE_CAP_ACCELERATED:
 213                 return 1;
 214         case PIPE_CAP_VIDEO_MEMORY: {
 215                 uint64_t system_memory;
 216
 217                 if (!os_get_total_physical_memory(&system_memory))
 218                         return 0;
 219
 220                 return (int)(system_memory >> 20);
 221         }
 222         case PIPE_CAP_UMA:
 223                 return 1;
 224
 225         default:
 226                 fprintf(stderr, "unknown param %d\n", param);
 227                 return 0;
 228         }
 229 }
 230
 231 static float
 232 vc4_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
 233 {
 234         switch (param) {
 235         case PIPE_CAPF_MAX_LINE_WIDTH:
 236         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 237         case PIPE_CAPF_MAX_POINT_WIDTH:
 238         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 239                 return 8192.0f;
 240         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 241                 return 0.0f;
 242         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 243                 return 0.0f;
 244         case PIPE_CAPF_GUARD_BAND_LEFT:
 245         case PIPE_CAPF_GUARD_BAND_TOP:
 246         case PIPE_CAPF_GUARD_BAND_RIGHT:
 247         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 248                 return 0.0f;
 249         default:
 250                 fprintf(stderr, "unknown paramf %d\n", param);
 251                 return 0;
 252         }
 253 }
 254
 255 static int
 256 vc4_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
 257                            enum pipe_shader_cap param)
 258 {
 259         if (shader != PIPE_SHADER_VERTEX &&
 260             shader != PIPE_SHADER_FRAGMENT) {
 261                 return 0;
 262         }
 263
 264         /* this is probably not totally correct.. but it's a start: */
 265         switch (param) {
 266         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 267         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 268         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 269         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 270                 return 16384;
 271         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 272                 return 0;
 273         case PIPE_SHADER_CAP_MAX_INPUTS:
 274                 return 16;
 275         case PIPE_SHADER_CAP_MAX_TEMPS:
 276                 return 64; /* Max native temporaries. */
 277         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 278                 return 64 * sizeof(float[4]);
 279         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 280                 return 1;
 281         case PIPE_SHADER_CAP_MAX_PREDS:
 282                 return 0; /* nothing uses this */
 283         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 284                 return 0;
 285         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 286         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 287         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 288         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 289                 return 0;
 290         case PIPE_SHADER_CAP_SUBROUTINES:
 291                 return 0;
 292         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 293                 return 0;
 294         case PIPE_SHADER_CAP_INTEGERS:
 295                 return 1;
 296         case PIPE_SHADER_CAP_DOUBLES:
 297                 return 0;
 298         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 299         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 300                 return VC4_MAX_TEXTURE_SAMPLERS;
 301         case PIPE_SHADER_CAP_PREFERRED_IR:
 302                 return PIPE_SHADER_IR_TGSI;
 303         default:
 304                 fprintf(stderr, "unknown shader param %d\n", param);
 305                 return 0;
 306         }
 307         return 0;
 308 }
 309
 310 static boolean
 311 vc4_screen_is_format_supported(struct pipe_screen *pscreen,
 312                                enum pipe_format format,
 313                                enum pipe_texture_target target,
 314                                unsigned sample_count,
 315                                unsigned usage)
 316 {
 317         unsigned retval = 0;
 318
 319         if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
 320             (sample_count > 1) ||
 321             !util_format_is_supported(format, usage)) {
 322                 return FALSE;
 323         }
 324
 325         if (usage & PIPE_BIND_VERTEX_BUFFER &&
 326             (format == PIPE_FORMAT_R32G32B32A32_FLOAT ||
 327              format == PIPE_FORMAT_R32G32B32_FLOAT ||
 328              format == PIPE_FORMAT_R32G32_FLOAT ||
 329              format == PIPE_FORMAT_R32_FLOAT)) {
 330                 retval |= PIPE_BIND_VERTEX_BUFFER;
 331         }
 332
 333         if ((usage & PIPE_BIND_RENDER_TARGET) &&
 334             vc4_rt_format_supported(format)) {
 335                 retval |= PIPE_BIND_RENDER_TARGET;
 336         }
 337
 338         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 339             (vc4_tex_format_supported(format))) {
 340                 retval |= PIPE_BIND_SAMPLER_VIEW;
 341         }
 342
 343         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 344             (format == PIPE_FORMAT_Z24_UNORM_S8_UINT ||
 345              format == PIPE_FORMAT_Z24X8_UNORM)) {
 346                 retval |= PIPE_BIND_DEPTH_STENCIL;
 347         }
 348
 349         if ((usage & PIPE_BIND_INDEX_BUFFER) &&
 350             (format == PIPE_FORMAT_I8_UINT ||
 351              format == PIPE_FORMAT_I16_UINT)) {
 352                 retval |= PIPE_BIND_INDEX_BUFFER;
 353         }
 354
 355         if (usage & PIPE_BIND_TRANSFER_READ)
 356                 retval |= PIPE_BIND_TRANSFER_READ;
 357         if (usage & PIPE_BIND_TRANSFER_WRITE)
 358                 retval |= PIPE_BIND_TRANSFER_WRITE;
 359
 360 #if 0
 361         if (retval != usage) {
 362                 fprintf(stderr,
 363                         "not supported: format=%s, target=%d, sample_count=%d, "
 364                         "usage=0x%x, retval=0x%x\n", util_format_name(format),
 365                         target, sample_count, usage, retval);
 366         }
 367 #endif
 368
 369         return retval == usage;
 370 }
 371
 372 struct pipe_screen *
 373 vc4_screen_create(int fd)
 374 {
 375         struct vc4_screen *screen = CALLOC_STRUCT(vc4_screen);
 376         struct pipe_screen *pscreen;
 377
 378         pscreen = &screen->base;
 379
 380         pscreen->destroy = vc4_screen_destroy;
 381         pscreen->get_param = vc4_screen_get_param;
 382         pscreen->get_paramf = vc4_screen_get_paramf;
 383         pscreen->get_shader_param = vc4_screen_get_shader_param;
 384         pscreen->context_create = vc4_context_create;
 385         pscreen->is_format_supported = vc4_screen_is_format_supported;
 386
 387         screen->fd = fd;
 388
 389         vc4_debug = debug_get_option_vc4_debug();
 390         if (vc4_debug & VC4_DEBUG_SHADERDB)
 391                 vc4_debug |= VC4_DEBUG_NORAST;
 392
 393 #if USE_VC4_SIMULATOR
 394         vc4_simulator_init(screen);
 395 #endif
 396
 397         vc4_resource_screen_init(pscreen);
 398
 399         pscreen->get_name = vc4_screen_get_name;
 400         pscreen->get_vendor = vc4_screen_get_vendor;
 401
 402         return pscreen;
 403 }
 404
 405 boolean
 406 vc4_screen_bo_get_handle(struct pipe_screen *pscreen,
 407                          struct vc4_bo *bo,
 408                          unsigned stride,
 409                          struct winsys_handle *whandle)
 410 {
 411         whandle->stride = stride;
 412
 413         switch (whandle->type) {
 414         case DRM_API_HANDLE_TYPE_SHARED:
 415                 return vc4_bo_flink(bo, &whandle->handle);
 416         case DRM_API_HANDLE_TYPE_KMS:
 417                 whandle->handle = bo->handle;
 418                 return TRUE;
 419         }
 420
 421         return FALSE;
 422 }
 423
 424 struct vc4_bo *
 425 vc4_screen_bo_from_handle(struct pipe_screen *pscreen,
 426                           struct winsys_handle *whandle,
 427                           unsigned *out_stride)
 428 {
 429         struct vc4_screen *screen = vc4_screen(pscreen);
 430         struct vc4_bo *bo;
 431
 432         if (whandle->type != DRM_API_HANDLE_TYPE_SHARED) {
 433                 fprintf(stderr,
 434                         "Attempt to import unsupported handle type %d\n",
 435                         whandle->type);
 436                 return NULL;
 437         }
 438
 439         bo = vc4_bo_open_name(screen, whandle->handle, whandle->stride);
 440         if (!bo) {
 441                 fprintf(stderr, "Open name %d failed\n", whandle->handle);
 442                 return NULL;
 443         }
 444
 445         *out_stride = whandle->stride;
 446
 447         return bo;
 448 }