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_s3tc.h>
  34 #include <util/u_transfer.h>
  35 #include <util/u_surface.h>
  36 #include <util/u_pack_color.h>
  37 #include <util/u_memory.h>
  38 #include <util/u_inlines.h>
  39 #include "util/u_upload_mgr.h"
  40 #include "os/os_time.h"
  41 #include <pipebuffer/pb_buffer.h>
  42 #include "r600.h"
  43 #include "r600d.h"
  44 #include "r600_resource.h"
  45 #include "r600_shader.h"
  46 #include "r600_pipe.h"
  47 #include "r600_state_inlines.h"
  48
  49 /*
  50  * pipe_context
  51  */
  52 static struct r600_fence *r600_create_fence(struct r600_pipe_context *ctx)
  53 {
  54         struct r600_fence *fence = NULL;
  55
  56         if (!ctx->fences.bo) {
  57                 /* Create the shared buffer object */
  58                 ctx->fences.bo = r600_bo(ctx->radeon, 4096, 0, 0, 0);
  59                 if (!ctx->fences.bo) {
  60                         R600_ERR("r600: failed to create bo for fence objects\n");
  61                         return NULL;
  62                 }
  63                 ctx->fences.data = r600_bo_map(ctx->radeon, ctx->fences.bo, PB_USAGE_UNSYNCHRONIZED, NULL);
  64         }
  65
  66         if (!LIST_IS_EMPTY(&ctx->fences.pool)) {
  67                 struct r600_fence *entry;
  68
  69                 /* Try to find a freed fence that has been signalled */
  70                 LIST_FOR_EACH_ENTRY(entry, &ctx->fences.pool, head) {
  71                         if (ctx->fences.data[entry->index] != 0) {
  72                                 LIST_DELINIT(&entry->head);
  73                                 fence = entry;
  74                                 break;
  75                         }
  76                 }
  77         }
  78
  79         if (!fence) {
  80                 /* Allocate a new fence */
  81                 struct r600_fence_block *block;
  82                 unsigned index;
  83
  84                 if ((ctx->fences.next_index + 1) >= 1024) {
  85                         R600_ERR("r600: too many concurrent fences\n");
  86                         return NULL;
  87                 }
  88
  89                 index = ctx->fences.next_index++;
  90
  91                 if (!(index % FENCE_BLOCK_SIZE)) {
  92                         /* Allocate a new block */
  93                         block = CALLOC_STRUCT(r600_fence_block);
  94                         if (block == NULL)
  95                                 return NULL;
  96
  97                         LIST_ADD(&block->head, &ctx->fences.blocks);
  98                 } else {
  99                         block = LIST_ENTRY(struct r600_fence_block, ctx->fences.blocks.next, head);
 100                 }
 101
 102                 fence = &block->fences[index % FENCE_BLOCK_SIZE];
 103                 fence->ctx = ctx;
 104                 fence->index = index;
 105         }
 106
 107         pipe_reference_init(&fence->reference, 1);
 108
 109         ctx->fences.data[fence->index] = 0;
 110         r600_context_emit_fence(&ctx->ctx, ctx->fences.bo, fence->index, 1);
 111         return fence;
 112 }
 113
 114 static void r600_flush(struct pipe_context *ctx,
 115                         struct pipe_fence_handle **fence)
 116 {
 117         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 118         struct r600_fence **rfence = (struct r600_fence**)fence;
 119
 120 #if 0
 121         static int dc = 0;
 122         char dname[256];
 123 #endif
 124
 125         if (rfence)
 126                 *rfence = r600_create_fence(rctx);
 127
 128         if (!rctx->ctx.pm4_cdwords)
 129                 return;
 130
 131 #if 0
 132         sprintf(dname, "gallium-%08d.bof", dc);
 133         if (dc < 20) {
 134                 r600_context_dump_bof(&rctx->ctx, dname);
 135                 R600_ERR("dumped %s\n", dname);
 136         }
 137         dc++;
 138 #endif
 139         r600_context_flush(&rctx->ctx);
 140
 141         /* XXX This shouldn't be really necessary, but removing it breaks some tests.
 142          * Needless buffer reallocations may significantly increase memory consumption,
 143          * so getting rid of this call is important. */
 144         u_upload_flush(rctx->vbuf_mgr->uploader);
 145 }
 146
 147 static void r600_update_num_contexts(struct r600_screen *rscreen, int diff)
 148 {
 149         pipe_mutex_lock(rscreen->mutex_num_contexts);
 150         if (diff > 0) {
 151                 rscreen->num_contexts++;
 152
 153                 if (rscreen->num_contexts > 1)
 154                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 155                                                     UTIL_SLAB_MULTITHREADED);
 156         } else {
 157                 rscreen->num_contexts--;
 158
 159                 if (rscreen->num_contexts <= 1)
 160                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 161                                                     UTIL_SLAB_SINGLETHREADED);
 162         }
 163         pipe_mutex_unlock(rscreen->mutex_num_contexts);
 164 }
 165
 166 static void r600_destroy_context(struct pipe_context *context)
 167 {
 168         struct r600_pipe_context *rctx = (struct r600_pipe_context *)context;
 169
 170         rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
 171         util_unreference_framebuffer_state(&rctx->framebuffer);
 172
 173         r600_context_fini(&rctx->ctx);
 174
 175         util_blitter_destroy(rctx->blitter);
 176
 177         for (int i = 0; i < R600_PIPE_NSTATES; i++) {
 178                 free(rctx->states[i]);
 179         }
 180
 181         u_vbuf_mgr_destroy(rctx->vbuf_mgr);
 182         util_slab_destroy(&rctx->pool_transfers);
 183
 184         if (rctx->fences.bo) {
 185                 struct r600_fence_block *entry, *tmp;
 186
 187                 LIST_FOR_EACH_ENTRY_SAFE(entry, tmp, &rctx->fences.blocks, head) {
 188                         LIST_DEL(&entry->head);
 189                         FREE(entry);
 190                 }
 191
 192                 r600_bo_unmap(rctx->radeon, rctx->fences.bo);
 193                 r600_bo_reference(rctx->radeon, &rctx->fences.bo, NULL);
 194         }
 195
 196         r600_update_num_contexts(rctx->screen, -1);
 197
 198         FREE(rctx);
 199 }
 200
 201 static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
 202 {
 203         struct r600_pipe_context *rctx = CALLOC_STRUCT(r600_pipe_context);
 204         struct r600_screen* rscreen = (struct r600_screen *)screen;
 205         enum chip_class class;
 206
 207         if (rctx == NULL)
 208                 return NULL;
 209
 210         r600_update_num_contexts(rscreen, 1);
 211
 212         rctx->context.winsys = rscreen->screen.winsys;
 213         rctx->context.screen = screen;
 214         rctx->context.priv = priv;
 215         rctx->context.destroy = r600_destroy_context;
 216         rctx->context.flush = r600_flush;
 217
 218         /* Easy accessing of screen/winsys. */
 219         rctx->screen = rscreen;
 220         rctx->radeon = rscreen->radeon;
 221         rctx->family = r600_get_family(rctx->radeon);
 222
 223         rctx->fences.bo = NULL;
 224         rctx->fences.data = NULL;
 225         rctx->fences.next_index = 0;
 226         LIST_INITHEAD(&rctx->fences.pool);
 227         LIST_INITHEAD(&rctx->fences.blocks);
 228
 229         r600_init_blit_functions(rctx);
 230         r600_init_query_functions(rctx);
 231         r600_init_context_resource_functions(rctx);
 232         r600_init_surface_functions(rctx);
 233         rctx->context.draw_vbo = r600_draw_vbo;
 234
 235         switch (r600_get_family(rctx->radeon)) {
 236         case CHIP_R600:
 237         case CHIP_RV610:
 238         case CHIP_RV630:
 239         case CHIP_RV670:
 240         case CHIP_RV620:
 241         case CHIP_RV635:
 242         case CHIP_RS780:
 243         case CHIP_RS880:
 244         case CHIP_RV770:
 245         case CHIP_RV730:
 246         case CHIP_RV710:
 247         case CHIP_RV740:
 248                 r600_init_state_functions(rctx);
 249                 if (r600_context_init(&rctx->ctx, rctx->radeon)) {
 250                         r600_destroy_context(&rctx->context);
 251                         return NULL;
 252                 }
 253                 r600_init_config(rctx);
 254                 break;
 255         case CHIP_CEDAR:
 256         case CHIP_REDWOOD:
 257         case CHIP_JUNIPER:
 258         case CHIP_CYPRESS:
 259         case CHIP_HEMLOCK:
 260         case CHIP_PALM:
 261         case CHIP_BARTS:
 262         case CHIP_TURKS:
 263         case CHIP_CAICOS:
 264                 evergreen_init_state_functions(rctx);
 265                 if (evergreen_context_init(&rctx->ctx, rctx->radeon)) {
 266                         r600_destroy_context(&rctx->context);
 267                         return NULL;
 268                 }
 269                 evergreen_init_config(rctx);
 270                 break;
 271         default:
 272                 R600_ERR("unsupported family %d\n", r600_get_family(rctx->radeon));
 273                 r600_destroy_context(&rctx->context);
 274                 return NULL;
 275         }
 276
 277         util_slab_create(&rctx->pool_transfers,
 278                          sizeof(struct pipe_transfer), 64,
 279                          UTIL_SLAB_SINGLETHREADED);
 280
 281         rctx->vbuf_mgr = u_vbuf_mgr_create(&rctx->context, 1024 * 1024, 256,
 282                                            PIPE_BIND_VERTEX_BUFFER |
 283                                            PIPE_BIND_INDEX_BUFFER |
 284                                            PIPE_BIND_CONSTANT_BUFFER,
 285                                            U_VERTEX_FETCH_DWORD_ALIGNED);
 286         if (!rctx->vbuf_mgr) {
 287                 r600_destroy_context(&rctx->context);
 288                 return NULL;
 289         }
 290
 291         rctx->blitter = util_blitter_create(&rctx->context);
 292         if (rctx->blitter == NULL) {
 293                 r600_destroy_context(&rctx->context);
 294                 return NULL;
 295         }
 296
 297         class = r600_get_family_class(rctx->radeon);
 298         if (class == R600 || class == R700)
 299                 rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
 300         else
 301                 rctx->custom_dsa_flush = evergreen_create_db_flush_dsa(rctx);
 302
 303         return &rctx->context;
 304 }
 305
 306 /*
 307  * pipe_screen
 308  */
 309 static const char* r600_get_vendor(struct pipe_screen* pscreen)
 310 {
 311         return "X.Org";
 312 }
 313
 314 static const char *r600_get_family_name(enum radeon_family family)
 315 {
 316         switch(family) {
 317         case CHIP_R600: return "AMD R600";
 318         case CHIP_RV610: return "AMD RV610";
 319         case CHIP_RV630: return "AMD RV630";
 320         case CHIP_RV670: return "AMD RV670";
 321         case CHIP_RV620: return "AMD RV620";
 322         case CHIP_RV635: return "AMD RV635";
 323         case CHIP_RS780: return "AMD RS780";
 324         case CHIP_RS880: return "AMD RS880";
 325         case CHIP_RV770: return "AMD RV770";
 326         case CHIP_RV730: return "AMD RV730";
 327         case CHIP_RV710: return "AMD RV710";
 328         case CHIP_RV740: return "AMD RV740";
 329         case CHIP_CEDAR: return "AMD CEDAR";
 330         case CHIP_REDWOOD: return "AMD REDWOOD";
 331         case CHIP_JUNIPER: return "AMD JUNIPER";
 332         case CHIP_CYPRESS: return "AMD CYPRESS";
 333         case CHIP_HEMLOCK: return "AMD HEMLOCK";
 334         case CHIP_PALM: return "AMD PALM";
 335         case CHIP_BARTS: return "AMD BARTS";
 336         case CHIP_TURKS: return "AMD TURKS";
 337         case CHIP_CAICOS: return "AMD CAICOS";
 338         default: return "AMD unknown";
 339         }
 340 }
 341
 342 static const char* r600_get_name(struct pipe_screen* pscreen)
 343 {
 344         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 345         enum radeon_family family = r600_get_family(rscreen->radeon);
 346
 347         return r600_get_family_name(family);
 348 }
 349
 350 static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 351 {
 352         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 353         enum radeon_family family = r600_get_family(rscreen->radeon);
 354
 355         switch (param) {
 356         /* Supported features (boolean caps). */
 357         case PIPE_CAP_NPOT_TEXTURES:
 358         case PIPE_CAP_TWO_SIDED_STENCIL:
 359         case PIPE_CAP_GLSL:
 360         case PIPE_CAP_DUAL_SOURCE_BLEND:
 361         case PIPE_CAP_ANISOTROPIC_FILTER:
 362         case PIPE_CAP_POINT_SPRITE:
 363         case PIPE_CAP_OCCLUSION_QUERY:
 364         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 365         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 366         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 367         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 368         case PIPE_CAP_SM3:
 369         case PIPE_CAP_TEXTURE_SWIZZLE:
 370         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 371         case PIPE_CAP_DEPTH_CLAMP:
 372         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 373         case PIPE_CAP_TGSI_INSTANCEID:
 374         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 375         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 376                 return 1;
 377         case PIPE_CAP_INDEP_BLEND_ENABLE:
 378                 /* R600 doesn't support per-MRT blends */
 379                 if (family == CHIP_R600)
 380                         return 0;
 381                 else
 382                         return 1;
 383
 384         /* Unsupported features (boolean caps). */
 385         case PIPE_CAP_STREAM_OUTPUT:
 386         case PIPE_CAP_PRIMITIVE_RESTART:
 387         case PIPE_CAP_INDEP_BLEND_FUNC: /* FIXME allow this */
 388         case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 389                 /* R600 doesn't support per-MRT blends */
 390                 if (family == CHIP_R600)
 391                         return 0;
 392                 else
 393                         return 0;
 394
 395         case PIPE_CAP_ARRAY_TEXTURES:
 396                 /* fix once the CS checker upstream is fixed */
 397                 return debug_get_bool_option("R600_ARRAY_TEXTURE", FALSE);
 398
 399         /* Texturing. */
 400         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 401         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 402         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 403                 if (family >= CHIP_CEDAR)
 404                         return 15;
 405                 else
 406                         return 14;
 407         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 408                 /* FIXME allow this once infrastructure is there */
 409                 return 16;
 410         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 411         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 412                 return 16;
 413
 414         /* Render targets. */
 415         case PIPE_CAP_MAX_RENDER_TARGETS:
 416                 /* FIXME some r6xx are buggy and can only do 4 */
 417                 return 8;
 418
 419         /* Fragment coordinate conventions. */
 420         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 421         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 422                 return 1;
 423         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 424         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 425                 return 0;
 426
 427         /* Timer queries, present when the clock frequency is non zero. */
 428         case PIPE_CAP_TIMER_QUERY:
 429                 return r600_get_clock_crystal_freq(rscreen->radeon) != 0;
 430
 431         default:
 432                 R600_ERR("r600: unknown param %d\n", param);
 433                 return 0;
 434         }
 435 }
 436
 437 static float r600_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 438 {
 439         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 440         enum radeon_family family = r600_get_family(rscreen->radeon);
 441
 442         switch (param) {
 443         case PIPE_CAP_MAX_LINE_WIDTH:
 444         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 445         case PIPE_CAP_MAX_POINT_WIDTH:
 446         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 447                 if (family >= CHIP_CEDAR)
 448                         return 16384.0f;
 449                 else
 450                         return 8192.0f;
 451         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 452                 return 16.0f;
 453         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 454                 return 16.0f;
 455         default:
 456                 R600_ERR("r600: unsupported paramf %d\n", param);
 457                 return 0.0f;
 458         }
 459 }
 460
 461 static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
 462 {
 463         switch(shader)
 464         {
 465         case PIPE_SHADER_FRAGMENT:
 466         case PIPE_SHADER_VERTEX:
 467                 break;
 468         case PIPE_SHADER_GEOMETRY:
 469                 /* TODO: support and enable geometry programs */
 470                 return 0;
 471         default:
 472                 /* TODO: support tessellation on Evergreen */
 473                 return 0;
 474         }
 475
 476         /* TODO: all these should be fixed, since r600 surely supports much more! */
 477         switch (param) {
 478         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 479         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 480         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 481         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 482                 return 16384;
 483         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 484                 return 8; /* FIXME */
 485         case PIPE_SHADER_CAP_MAX_INPUTS:
 486                 if(shader == PIPE_SHADER_FRAGMENT)
 487                         return 10;
 488                 else
 489                         return 16;
 490         case PIPE_SHADER_CAP_MAX_TEMPS:
 491                 return 256; //max native temporaries
 492         case PIPE_SHADER_CAP_MAX_ADDRS:
 493                 return 1; //max native address registers/* FIXME Isn't this equal to TEMPS? */
 494         case PIPE_SHADER_CAP_MAX_CONSTS:
 495                 return R600_MAX_CONST_BUFFER_SIZE;
 496         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 497                 return R600_MAX_CONST_BUFFERS;
 498         case PIPE_SHADER_CAP_MAX_PREDS:
 499                 return 0; /* FIXME */
 500         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 501                 return 1;
 502         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 503         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 504         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 505         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 506                 return 1;
 507         case PIPE_SHADER_CAP_SUBROUTINES:
 508                 return 0;
 509         default:
 510                 return 0;
 511         }
 512 }
 513
 514 static boolean r600_is_format_supported(struct pipe_screen* screen,
 515                                         enum pipe_format format,
 516                                         enum pipe_texture_target target,
 517                                         unsigned sample_count,
 518                                         unsigned usage)
 519 {
 520         unsigned retval = 0;
 521         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 522                 R600_ERR("r600: unsupported texture type %d\n", target);
 523                 return FALSE;
 524         }
 525
 526         /* Multisample */
 527         if (sample_count > 1)
 528                 return FALSE;
 529
 530         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 531             r600_is_sampler_format_supported(screen, format)) {
 532                 retval |= PIPE_BIND_SAMPLER_VIEW;
 533         }
 534
 535         if ((usage & (PIPE_BIND_RENDER_TARGET |
 536                         PIPE_BIND_DISPLAY_TARGET |
 537                         PIPE_BIND_SCANOUT |
 538                         PIPE_BIND_SHARED)) &&
 539                         r600_is_colorbuffer_format_supported(format)) {
 540                 retval |= usage &
 541                         (PIPE_BIND_RENDER_TARGET |
 542                          PIPE_BIND_DISPLAY_TARGET |
 543                          PIPE_BIND_SCANOUT |
 544                          PIPE_BIND_SHARED);
 545         }
 546
 547         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 548             r600_is_zs_format_supported(format)) {
 549                 retval |= PIPE_BIND_DEPTH_STENCIL;
 550         }
 551
 552         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 553                 struct r600_screen *rscreen = (struct r600_screen *)screen;
 554                 enum radeon_family family = r600_get_family(rscreen->radeon);
 555
 556                 if (r600_is_vertex_format_supported(format, family)) {
 557                         retval |= PIPE_BIND_VERTEX_BUFFER;
 558                 }
 559         }
 560
 561         if (usage & PIPE_BIND_TRANSFER_READ)
 562                 retval |= PIPE_BIND_TRANSFER_READ;
 563         if (usage & PIPE_BIND_TRANSFER_WRITE)
 564                 retval |= PIPE_BIND_TRANSFER_WRITE;
 565
 566         return retval == usage;
 567 }
 568
 569 static void r600_destroy_screen(struct pipe_screen* pscreen)
 570 {
 571         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 572
 573         if (rscreen == NULL)
 574                 return;
 575
 576         radeon_decref(rscreen->radeon);
 577
 578         util_slab_destroy(&rscreen->pool_buffers);
 579         pipe_mutex_destroy(rscreen->mutex_num_contexts);
 580         FREE(rscreen);
 581 }
 582
 583 static void r600_fence_reference(struct pipe_screen *pscreen,
 584                                  struct pipe_fence_handle **ptr,
 585                                  struct pipe_fence_handle *fence)
 586 {
 587         struct r600_fence **oldf = (struct r600_fence**)ptr;
 588         struct r600_fence *newf = (struct r600_fence*)fence;
 589
 590         if (pipe_reference(&(*oldf)->reference, &newf->reference)) {
 591                 struct r600_pipe_context *ctx = (*oldf)->ctx;
 592                 LIST_ADDTAIL(&(*oldf)->head, &ctx->fences.pool);
 593         }
 594
 595         *ptr = fence;
 596 }
 597
 598 static boolean r600_fence_signalled(struct pipe_screen *pscreen,
 599                                     struct pipe_fence_handle *fence)
 600 {
 601         struct r600_fence *rfence = (struct r600_fence*)fence;
 602         struct r600_pipe_context *ctx = rfence->ctx;
 603
 604         return ctx->fences.data[rfence->index];
 605 }
 606
 607 static boolean r600_fence_finish(struct pipe_screen *pscreen,
 608                                  struct pipe_fence_handle *fence,
 609                                  uint64_t timeout)
 610 {
 611         struct r600_fence *rfence = (struct r600_fence*)fence;
 612         struct r600_pipe_context *ctx = rfence->ctx;
 613         int64_t start_time = 0;
 614         unsigned spins = 0;
 615
 616         if (timeout != PIPE_TIMEOUT_INFINITE) {
 617                 start_time = os_time_get();
 618
 619                 /* Convert to microseconds. */
 620                 timeout /= 1000;
 621         }
 622
 623         while (ctx->fences.data[rfence->index] == 0) {
 624                 if (++spins % 256)
 625                         continue;
 626 #ifdef PIPE_OS_UNIX
 627                 sched_yield();
 628 #else
 629                 os_time_sleep(10);
 630 #endif
 631                 if (timeout != PIPE_TIMEOUT_INFINITE &&
 632                     os_time_get() - start_time >= timeout) {
 633                         return FALSE;
 634                 }
 635         }
 636
 637         return TRUE;
 638 }
 639
 640 struct pipe_screen *r600_screen_create(struct radeon *radeon)
 641 {
 642         struct r600_screen *rscreen;
 643
 644         rscreen = CALLOC_STRUCT(r600_screen);
 645         if (rscreen == NULL) {
 646                 return NULL;
 647         }
 648
 649         rscreen->radeon = radeon;
 650         rscreen->screen.winsys = (struct pipe_winsys*)radeon;
 651         rscreen->screen.destroy = r600_destroy_screen;
 652         rscreen->screen.get_name = r600_get_name;
 653         rscreen->screen.get_vendor = r600_get_vendor;
 654         rscreen->screen.get_param = r600_get_param;
 655         rscreen->screen.get_shader_param = r600_get_shader_param;
 656         rscreen->screen.get_paramf = r600_get_paramf;
 657         rscreen->screen.is_format_supported = r600_is_format_supported;
 658         rscreen->screen.context_create = r600_create_context;
 659         rscreen->screen.fence_reference = r600_fence_reference;
 660         rscreen->screen.fence_signalled = r600_fence_signalled;
 661         rscreen->screen.fence_finish = r600_fence_finish;
 662         r600_init_screen_resource_functions(&rscreen->screen);
 663
 664         rscreen->tiling_info = r600_get_tiling_info(radeon);
 665         util_format_s3tc_init();
 666
 667         util_slab_create(&rscreen->pool_buffers,
 668                          sizeof(struct r600_resource_buffer), 64,
 669                          UTIL_SLAB_SINGLETHREADED);
 670
 671         pipe_mutex_init(rscreen->mutex_num_contexts);
 672
 673         return &rscreen->screen;
 674 }