src/gallium/drivers/r600/r600_pipe.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #include <stdio.h>
  24 #include <errno.h>
  25 #include <pipe/p_defines.h>
  26 #include <pipe/p_state.h>
  27 #include <pipe/p_context.h>
  28 #include <tgsi/tgsi_scan.h>
  29 #include <tgsi/tgsi_parse.h>
  30 #include <tgsi/tgsi_util.h>
  31 #include <util/u_blitter.h>
  32 #include <util/u_double_list.h>
  33 #include "util/u_format.h"
  34 #include <util/u_format_s3tc.h>
  35 #include <util/u_transfer.h>
  36 #include <util/u_surface.h>
  37 #include <util/u_pack_color.h>
  38 #include <util/u_memory.h>
  39 #include <util/u_inlines.h>
  40 #include "util/u_upload_mgr.h"
  41 #include "os/os_time.h"
  42 #include <pipebuffer/pb_buffer.h>
  43 #include "r600.h"
  44 #include "r600d.h"
  45 #include "r600_resource.h"
  46 #include "r600_shader.h"
  47 #include "r600_pipe.h"
  48 #include "r600_state_inlines.h"
  49
  50 /*
  51  * pipe_context
  52  */
  53 static struct r600_fence *r600_create_fence(struct r600_pipe_context *ctx)
  54 {
  55         struct r600_fence *fence = NULL;
  56
  57         if (!ctx->fences.bo) {
  58                 /* Create the shared buffer object */
  59                 ctx->fences.bo = r600_bo(ctx->radeon, 4096, 0, 0, 0);
  60                 if (!ctx->fences.bo) {
  61                         R600_ERR("r600: failed to create bo for fence objects\n");
  62                         return NULL;
  63                 }
  64                 ctx->fences.data = r600_bo_map(ctx->radeon, ctx->fences.bo, PB_USAGE_UNSYNCHRONIZED, NULL);
  65         }
  66
  67         if (!LIST_IS_EMPTY(&ctx->fences.pool)) {
  68                 struct r600_fence *entry;
  69
  70                 /* Try to find a freed fence that has been signalled */
  71                 LIST_FOR_EACH_ENTRY(entry, &ctx->fences.pool, head) {
  72                         if (ctx->fences.data[entry->index] != 0) {
  73                                 LIST_DELINIT(&entry->head);
  74                                 fence = entry;
  75                                 break;
  76                         }
  77                 }
  78         }
  79
  80         if (!fence) {
  81                 /* Allocate a new fence */
  82                 struct r600_fence_block *block;
  83                 unsigned index;
  84
  85                 if ((ctx->fences.next_index + 1) >= 1024) {
  86                         R600_ERR("r600: too many concurrent fences\n");
  87                         return NULL;
  88                 }
  89
  90                 index = ctx->fences.next_index++;
  91
  92                 if (!(index % FENCE_BLOCK_SIZE)) {
  93                         /* Allocate a new block */
  94                         block = CALLOC_STRUCT(r600_fence_block);
  95                         if (block == NULL)
  96                                 return NULL;
  97
  98                         LIST_ADD(&block->head, &ctx->fences.blocks);
  99                 } else {
 100                         block = LIST_ENTRY(struct r600_fence_block, ctx->fences.blocks.next, head);
 101                 }
 102
 103                 fence = &block->fences[index % FENCE_BLOCK_SIZE];
 104                 fence->ctx = ctx;
 105                 fence->index = index;
 106         }
 107
 108         pipe_reference_init(&fence->reference, 1);
 109
 110         ctx->fences.data[fence->index] = 0;
 111         r600_context_emit_fence(&ctx->ctx, ctx->fences.bo, fence->index, 1);
 112         return fence;
 113 }
 114
 115 static void r600_flush(struct pipe_context *ctx,
 116                         struct pipe_fence_handle **fence)
 117 {
 118         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 119         struct r600_fence **rfence = (struct r600_fence**)fence;
 120
 121 #if 0
 122         static int dc = 0;
 123         char dname[256];
 124 #endif
 125
 126         if (rfence)
 127                 *rfence = r600_create_fence(rctx);
 128
 129 #if 0
 130         sprintf(dname, "gallium-%08d.bof", dc);
 131         if (dc < 20) {
 132                 r600_context_dump_bof(&rctx->ctx, dname);
 133                 R600_ERR("dumped %s\n", dname);
 134         }
 135         dc++;
 136 #endif
 137         r600_context_flush(&rctx->ctx);
 138 }
 139
 140 static void r600_update_num_contexts(struct r600_screen *rscreen, int diff)
 141 {
 142         pipe_mutex_lock(rscreen->mutex_num_contexts);
 143         if (diff > 0) {
 144                 rscreen->num_contexts++;
 145
 146                 if (rscreen->num_contexts > 1)
 147                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 148                                                     UTIL_SLAB_MULTITHREADED);
 149         } else {
 150                 rscreen->num_contexts--;
 151
 152                 if (rscreen->num_contexts <= 1)
 153                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 154                                                     UTIL_SLAB_SINGLETHREADED);
 155         }
 156         pipe_mutex_unlock(rscreen->mutex_num_contexts);
 157 }
 158
 159 static void r600_destroy_context(struct pipe_context *context)
 160 {
 161         struct r600_pipe_context *rctx = (struct r600_pipe_context *)context;
 162
 163         rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
 164         util_unreference_framebuffer_state(&rctx->framebuffer);
 165
 166         r600_context_fini(&rctx->ctx);
 167
 168         util_blitter_destroy(rctx->blitter);
 169
 170         for (int i = 0; i < R600_PIPE_NSTATES; i++) {
 171                 free(rctx->states[i]);
 172         }
 173
 174         u_vbuf_destroy(rctx->vbuf_mgr);
 175         util_slab_destroy(&rctx->pool_transfers);
 176
 177         if (rctx->fences.bo) {
 178                 struct r600_fence_block *entry, *tmp;
 179
 180                 LIST_FOR_EACH_ENTRY_SAFE(entry, tmp, &rctx->fences.blocks, head) {
 181                         LIST_DEL(&entry->head);
 182                         FREE(entry);
 183                 }
 184
 185                 r600_bo_unmap(rctx->radeon, rctx->fences.bo);
 186                 r600_bo_reference(rctx->radeon, &rctx->fences.bo, NULL);
 187         }
 188
 189         r600_update_num_contexts(rctx->screen, -1);
 190
 191         FREE(rctx);
 192 }
 193
 194 static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
 195 {
 196         struct r600_pipe_context *rctx = CALLOC_STRUCT(r600_pipe_context);
 197         struct r600_screen* rscreen = (struct r600_screen *)screen;
 198         enum chip_class class;
 199
 200         if (rctx == NULL)
 201                 return NULL;
 202
 203         r600_update_num_contexts(rscreen, 1);
 204
 205         rctx->context.winsys = rscreen->screen.winsys;
 206         rctx->context.screen = screen;
 207         rctx->context.priv = priv;
 208         rctx->context.destroy = r600_destroy_context;
 209         rctx->context.flush = r600_flush;
 210
 211         /* Easy accessing of screen/winsys. */
 212         rctx->screen = rscreen;
 213         rctx->radeon = rscreen->radeon;
 214         rctx->family = r600_get_family(rctx->radeon);
 215
 216         rctx->fences.bo = NULL;
 217         rctx->fences.data = NULL;
 218         rctx->fences.next_index = 0;
 219         LIST_INITHEAD(&rctx->fences.pool);
 220         LIST_INITHEAD(&rctx->fences.blocks);
 221
 222         r600_init_blit_functions(rctx);
 223         r600_init_query_functions(rctx);
 224         r600_init_context_resource_functions(rctx);
 225         r600_init_surface_functions(rctx);
 226         rctx->context.draw_vbo = r600_draw_vbo;
 227
 228         switch (r600_get_family(rctx->radeon)) {
 229         case CHIP_R600:
 230         case CHIP_RV610:
 231         case CHIP_RV630:
 232         case CHIP_RV670:
 233         case CHIP_RV620:
 234         case CHIP_RV635:
 235         case CHIP_RS780:
 236         case CHIP_RS880:
 237         case CHIP_RV770:
 238         case CHIP_RV730:
 239         case CHIP_RV710:
 240         case CHIP_RV740:
 241                 r600_init_state_functions(rctx);
 242                 if (r600_context_init(&rctx->ctx, rctx->radeon)) {
 243                         r600_destroy_context(&rctx->context);
 244                         return NULL;
 245                 }
 246                 r600_init_config(rctx);
 247                 break;
 248         case CHIP_CEDAR:
 249         case CHIP_REDWOOD:
 250         case CHIP_JUNIPER:
 251         case CHIP_CYPRESS:
 252         case CHIP_HEMLOCK:
 253         case CHIP_PALM:
 254         case CHIP_SUMO:
 255         case CHIP_SUMO2:
 256         case CHIP_BARTS:
 257         case CHIP_TURKS:
 258         case CHIP_CAICOS:
 259         case CHIP_CAYMAN:
 260                 evergreen_init_state_functions(rctx);
 261                 if (evergreen_context_init(&rctx->ctx, rctx->radeon)) {
 262                         r600_destroy_context(&rctx->context);
 263                         return NULL;
 264                 }
 265                 evergreen_init_config(rctx);
 266                 break;
 267         default:
 268                 R600_ERR("unsupported family %d\n", r600_get_family(rctx->radeon));
 269                 r600_destroy_context(&rctx->context);
 270                 return NULL;
 271         }
 272
 273         util_slab_create(&rctx->pool_transfers,
 274                          sizeof(struct pipe_transfer), 64,
 275                          UTIL_SLAB_SINGLETHREADED);
 276
 277         rctx->vbuf_mgr = u_vbuf_create(&rctx->context, 1024 * 1024, 256,
 278                                            PIPE_BIND_VERTEX_BUFFER |
 279                                            PIPE_BIND_INDEX_BUFFER |
 280                                            PIPE_BIND_CONSTANT_BUFFER,
 281                                            U_VERTEX_FETCH_DWORD_ALIGNED);
 282         if (!rctx->vbuf_mgr) {
 283                 r600_destroy_context(&rctx->context);
 284                 return NULL;
 285         }
 286
 287         rctx->blitter = util_blitter_create(&rctx->context);
 288         if (rctx->blitter == NULL) {
 289                 r600_destroy_context(&rctx->context);
 290                 return NULL;
 291         }
 292
 293         class = r600_get_family_class(rctx->radeon);
 294         if (class == R600 || class == R700)
 295                 rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
 296         else
 297                 rctx->custom_dsa_flush = evergreen_create_db_flush_dsa(rctx);
 298
 299         return &rctx->context;
 300 }
 301
 302 /*
 303  * pipe_screen
 304  */
 305 static const char* r600_get_vendor(struct pipe_screen* pscreen)
 306 {
 307         return "X.Org";
 308 }
 309
 310 static const char *r600_get_family_name(enum radeon_family family)
 311 {
 312         switch(family) {
 313         case CHIP_R600: return "AMD R600";
 314         case CHIP_RV610: return "AMD RV610";
 315         case CHIP_RV630: return "AMD RV630";
 316         case CHIP_RV670: return "AMD RV670";
 317         case CHIP_RV620: return "AMD RV620";
 318         case CHIP_RV635: return "AMD RV635";
 319         case CHIP_RS780: return "AMD RS780";
 320         case CHIP_RS880: return "AMD RS880";
 321         case CHIP_RV770: return "AMD RV770";
 322         case CHIP_RV730: return "AMD RV730";
 323         case CHIP_RV710: return "AMD RV710";
 324         case CHIP_RV740: return "AMD RV740";
 325         case CHIP_CEDAR: return "AMD CEDAR";
 326         case CHIP_REDWOOD: return "AMD REDWOOD";
 327         case CHIP_JUNIPER: return "AMD JUNIPER";
 328         case CHIP_CYPRESS: return "AMD CYPRESS";
 329         case CHIP_HEMLOCK: return "AMD HEMLOCK";
 330         case CHIP_PALM: return "AMD PALM";
 331         case CHIP_SUMO: return "AMD SUMO";
 332         case CHIP_SUMO2: return "AMD SUMO2";
 333         case CHIP_BARTS: return "AMD BARTS";
 334         case CHIP_TURKS: return "AMD TURKS";
 335         case CHIP_CAICOS: return "AMD CAICOS";
 336         case CHIP_CAYMAN: return "AMD CAYMAN";
 337         default: return "AMD unknown";
 338         }
 339 }
 340
 341 static const char* r600_get_name(struct pipe_screen* pscreen)
 342 {
 343         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 344         enum radeon_family family = r600_get_family(rscreen->radeon);
 345
 346         return r600_get_family_name(family);
 347 }
 348
 349 static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 350 {
 351         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 352         enum radeon_family family = r600_get_family(rscreen->radeon);
 353
 354         switch (param) {
 355         /* Supported features (boolean caps). */
 356         case PIPE_CAP_NPOT_TEXTURES:
 357         case PIPE_CAP_TWO_SIDED_STENCIL:
 358         case PIPE_CAP_GLSL:
 359         case PIPE_CAP_DUAL_SOURCE_BLEND:
 360         case PIPE_CAP_ANISOTROPIC_FILTER:
 361         case PIPE_CAP_POINT_SPRITE:
 362         case PIPE_CAP_OCCLUSION_QUERY:
 363         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 364         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 365         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 366         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 367         case PIPE_CAP_TEXTURE_SWIZZLE:
 368         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 369         case PIPE_CAP_DEPTH_CLAMP:
 370         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 371         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 372         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 373         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 374         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 375         case PIPE_CAP_SM3:
 376         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 377         case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 378                 return 1;
 379
 380         /* Supported except the original R600. */
 381         case PIPE_CAP_INDEP_BLEND_ENABLE:
 382         case PIPE_CAP_INDEP_BLEND_FUNC:
 383                 /* R600 doesn't support per-MRT blends */
 384                 return family == CHIP_R600 ? 0 : 1;
 385
 386         /* Supported on Evergreen. */
 387         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 388                 return family >= CHIP_CEDAR ? 1 : 0;
 389
 390         /* Unsupported features. */
 391         case PIPE_CAP_STREAM_OUTPUT:
 392         case PIPE_CAP_PRIMITIVE_RESTART:
 393         case PIPE_CAP_TGSI_INSTANCEID:
 394         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 395         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 396                 return 0;
 397
 398         case PIPE_CAP_ARRAY_TEXTURES:
 399                 /* fix once the CS checker upstream is fixed */
 400                 return debug_get_bool_option("R600_ARRAY_TEXTURE", FALSE);
 401
 402         /* Texturing. */
 403         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 404         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 405         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 406                 if (family >= CHIP_CEDAR)
 407                         return 15;
 408                 else
 409                         return 14;
 410         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 411         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 412                 return 16;
 413         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 414                 return 32;
 415
 416         /* Render targets. */
 417         case PIPE_CAP_MAX_RENDER_TARGETS:
 418                 /* FIXME some r6xx are buggy and can only do 4 */
 419                 return 8;
 420
 421         /* Timer queries, present when the clock frequency is non zero. */
 422         case PIPE_CAP_TIMER_QUERY:
 423                 return r600_get_clock_crystal_freq(rscreen->radeon) != 0;
 424
 425         default:
 426                 R600_ERR("r600: unknown param %d\n", param);
 427                 return 0;
 428         }
 429 }
 430
 431 static float r600_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 432 {
 433         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 434         enum radeon_family family = r600_get_family(rscreen->radeon);
 435
 436         switch (param) {
 437         case PIPE_CAP_MAX_LINE_WIDTH:
 438         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 439         case PIPE_CAP_MAX_POINT_WIDTH:
 440         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 441                 if (family >= CHIP_CEDAR)
 442                         return 16384.0f;
 443                 else
 444                         return 8192.0f;
 445         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 446                 return 16.0f;
 447         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 448                 return 16.0f;
 449         default:
 450                 R600_ERR("r600: unsupported paramf %d\n", param);
 451                 return 0.0f;
 452         }
 453 }
 454
 455 static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
 456 {
 457         switch(shader)
 458         {
 459         case PIPE_SHADER_FRAGMENT:
 460         case PIPE_SHADER_VERTEX:
 461                 break;
 462         case PIPE_SHADER_GEOMETRY:
 463                 /* TODO: support and enable geometry programs */
 464                 return 0;
 465         default:
 466                 /* TODO: support tessellation on Evergreen */
 467                 return 0;
 468         }
 469
 470         /* TODO: all these should be fixed, since r600 surely supports much more! */
 471         switch (param) {
 472         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 473         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 474         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 475         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 476                 return 16384;
 477         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 478                 return 8; /* FIXME */
 479         case PIPE_SHADER_CAP_MAX_INPUTS:
 480                 if(shader == PIPE_SHADER_FRAGMENT)
 481                         return 34;
 482                 else
 483                         return 32;
 484         case PIPE_SHADER_CAP_MAX_TEMPS:
 485                 return 256; /* Max native temporaries. */
 486         case PIPE_SHADER_CAP_MAX_ADDRS:
 487                 /* FIXME Isn't this equal to TEMPS? */
 488                 return 1; /* Max native address registers */
 489         case PIPE_SHADER_CAP_MAX_CONSTS:
 490                 return R600_MAX_CONST_BUFFER_SIZE;
 491         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 492                 return R600_MAX_CONST_BUFFERS;
 493         case PIPE_SHADER_CAP_MAX_PREDS:
 494                 return 0; /* FIXME */
 495         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 496                 return 1;
 497         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 498         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 499         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 500         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 501                 return 1;
 502         case PIPE_SHADER_CAP_SUBROUTINES:
 503                 return 0;
 504         default:
 505                 return 0;
 506         }
 507 }
 508
 509 static boolean r600_is_format_supported(struct pipe_screen* screen,
 510                                         enum pipe_format format,
 511                                         enum pipe_texture_target target,
 512                                         unsigned sample_count,
 513                                         unsigned usage)
 514 {
 515         unsigned retval = 0;
 516         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 517                 R600_ERR("r600: unsupported texture type %d\n", target);
 518                 return FALSE;
 519         }
 520
 521         if (!util_format_is_supported(format, usage))
 522                 return FALSE;
 523
 524         /* Multisample */
 525         if (sample_count > 1)
 526                 return FALSE;
 527
 528         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 529             r600_is_sampler_format_supported(screen, format)) {
 530                 retval |= PIPE_BIND_SAMPLER_VIEW;
 531         }
 532
 533         if ((usage & (PIPE_BIND_RENDER_TARGET |
 534                         PIPE_BIND_DISPLAY_TARGET |
 535                         PIPE_BIND_SCANOUT |
 536                         PIPE_BIND_SHARED)) &&
 537                         r600_is_colorbuffer_format_supported(format)) {
 538                 retval |= usage &
 539                         (PIPE_BIND_RENDER_TARGET |
 540                          PIPE_BIND_DISPLAY_TARGET |
 541                          PIPE_BIND_SCANOUT |
 542                          PIPE_BIND_SHARED);
 543         }
 544
 545         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 546             r600_is_zs_format_supported(format)) {
 547                 retval |= PIPE_BIND_DEPTH_STENCIL;
 548         }
 549
 550         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 551                 struct r600_screen *rscreen = (struct r600_screen *)screen;
 552                 enum radeon_family family = r600_get_family(rscreen->radeon);
 553
 554                 if (r600_is_vertex_format_supported(format, family)) {
 555                         retval |= PIPE_BIND_VERTEX_BUFFER;
 556                 }
 557         }
 558
 559         if (usage & PIPE_BIND_TRANSFER_READ)
 560                 retval |= PIPE_BIND_TRANSFER_READ;
 561         if (usage & PIPE_BIND_TRANSFER_WRITE)
 562                 retval |= PIPE_BIND_TRANSFER_WRITE;
 563
 564         return retval == usage;
 565 }
 566
 567 static void r600_destroy_screen(struct pipe_screen* pscreen)
 568 {
 569         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 570
 571         if (rscreen == NULL)
 572                 return;
 573
 574         radeon_decref(rscreen->radeon);
 575
 576         util_slab_destroy(&rscreen->pool_buffers);
 577         pipe_mutex_destroy(rscreen->mutex_num_contexts);
 578         FREE(rscreen);
 579 }
 580
 581 static void r600_fence_reference(struct pipe_screen *pscreen,
 582                                  struct pipe_fence_handle **ptr,
 583                                  struct pipe_fence_handle *fence)
 584 {
 585         struct r600_fence **oldf = (struct r600_fence**)ptr;
 586         struct r600_fence *newf = (struct r600_fence*)fence;
 587
 588         if (pipe_reference(&(*oldf)->reference, &newf->reference)) {
 589                 struct r600_pipe_context *ctx = (*oldf)->ctx;
 590                 LIST_ADDTAIL(&(*oldf)->head, &ctx->fences.pool);
 591         }
 592
 593         *ptr = fence;
 594 }
 595
 596 static boolean r600_fence_signalled(struct pipe_screen *pscreen,
 597                                     struct pipe_fence_handle *fence)
 598 {
 599         struct r600_fence *rfence = (struct r600_fence*)fence;
 600         struct r600_pipe_context *ctx = rfence->ctx;
 601
 602         return ctx->fences.data[rfence->index];
 603 }
 604
 605 static boolean r600_fence_finish(struct pipe_screen *pscreen,
 606                                  struct pipe_fence_handle *fence,
 607                                  uint64_t timeout)
 608 {
 609         struct r600_fence *rfence = (struct r600_fence*)fence;
 610         struct r600_pipe_context *ctx = rfence->ctx;
 611         int64_t start_time = 0;
 612         unsigned spins = 0;
 613
 614         if (timeout != PIPE_TIMEOUT_INFINITE) {
 615                 start_time = os_time_get();
 616
 617                 /* Convert to microseconds. */
 618                 timeout /= 1000;
 619         }
 620
 621         while (ctx->fences.data[rfence->index] == 0) {
 622                 if (++spins % 256)
 623                         continue;
 624 #ifdef PIPE_OS_UNIX
 625                 sched_yield();
 626 #else
 627                 os_time_sleep(10);
 628 #endif
 629                 if (timeout != PIPE_TIMEOUT_INFINITE &&
 630                     os_time_get() - start_time >= timeout) {
 631                         return FALSE;
 632                 }
 633         }
 634
 635         return TRUE;
 636 }
 637
 638 struct pipe_screen *r600_screen_create(struct radeon *radeon)
 639 {
 640         struct r600_screen *rscreen;
 641
 642         rscreen = CALLOC_STRUCT(r600_screen);
 643         if (rscreen == NULL) {
 644                 return NULL;
 645         }
 646
 647         rscreen->radeon = radeon;
 648         rscreen->screen.winsys = (struct pipe_winsys*)radeon;
 649         rscreen->screen.destroy = r600_destroy_screen;
 650         rscreen->screen.get_name = r600_get_name;
 651         rscreen->screen.get_vendor = r600_get_vendor;
 652         rscreen->screen.get_param = r600_get_param;
 653         rscreen->screen.get_shader_param = r600_get_shader_param;
 654         rscreen->screen.get_paramf = r600_get_paramf;
 655         rscreen->screen.is_format_supported = r600_is_format_supported;
 656         rscreen->screen.context_create = r600_create_context;
 657         rscreen->screen.fence_reference = r600_fence_reference;
 658         rscreen->screen.fence_signalled = r600_fence_signalled;
 659         rscreen->screen.fence_finish = r600_fence_finish;
 660         r600_init_screen_resource_functions(&rscreen->screen);
 661
 662         rscreen->tiling_info = r600_get_tiling_info(radeon);
 663         util_format_s3tc_init();
 664
 665         util_slab_create(&rscreen->pool_buffers,
 666                          sizeof(struct r600_resource_buffer), 64,
 667                          UTIL_SLAB_SINGLETHREADED);
 668
 669         pipe_mutex_init(rscreen->mutex_num_contexts);
 670
 671         return &rscreen->screen;
 672 }