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 #include "r600_video_context.h"
  50
  51 /*
  52  * pipe_context
  53  */
  54 static struct r600_fence *r600_create_fence(struct r600_pipe_context *ctx)
  55 {
  56         struct r600_fence *fence = NULL;
  57
  58         if (!ctx->fences.bo) {
  59                 /* Create the shared buffer object */
  60                 ctx->fences.bo = r600_bo(ctx->radeon, 4096, 0, 0, 0);
  61                 if (!ctx->fences.bo) {
  62                         R600_ERR("r600: failed to create bo for fence objects\n");
  63                         return NULL;
  64                 }
  65                 ctx->fences.data = r600_bo_map(ctx->radeon, ctx->fences.bo, PB_USAGE_UNSYNCHRONIZED, NULL);
  66         }
  67
  68         if (!LIST_IS_EMPTY(&ctx->fences.pool)) {
  69                 struct r600_fence *entry;
  70
  71                 /* Try to find a freed fence that has been signalled */
  72                 LIST_FOR_EACH_ENTRY(entry, &ctx->fences.pool, head) {
  73                         if (ctx->fences.data[entry->index] != 0) {
  74                                 LIST_DELINIT(&entry->head);
  75                                 fence = entry;
  76                                 break;
  77                         }
  78                 }
  79         }
  80
  81         if (!fence) {
  82                 /* Allocate a new fence */
  83                 struct r600_fence_block *block;
  84                 unsigned index;
  85
  86                 if ((ctx->fences.next_index + 1) >= 1024) {
  87                         R600_ERR("r600: too many concurrent fences\n");
  88                         return NULL;
  89                 }
  90
  91                 index = ctx->fences.next_index++;
  92
  93                 if (!(index % FENCE_BLOCK_SIZE)) {
  94                         /* Allocate a new block */
  95                         block = CALLOC_STRUCT(r600_fence_block);
  96                         if (block == NULL)
  97                                 return NULL;
  98
  99                         LIST_ADD(&block->head, &ctx->fences.blocks);
 100                 } else {
 101                         block = LIST_ENTRY(struct r600_fence_block, ctx->fences.blocks.next, head);
 102                 }
 103
 104                 fence = &block->fences[index % FENCE_BLOCK_SIZE];
 105                 fence->ctx = ctx;
 106                 fence->index = index;
 107         }
 108
 109         pipe_reference_init(&fence->reference, 1);
 110
 111         ctx->fences.data[fence->index] = 0;
 112         r600_context_emit_fence(&ctx->ctx, ctx->fences.bo, fence->index, 1);
 113         return fence;
 114 }
 115
 116 static void r600_flush(struct pipe_context *ctx,
 117                         struct pipe_fence_handle **fence)
 118 {
 119         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 120         struct r600_fence **rfence = (struct r600_fence**)fence;
 121
 122 #if 0
 123         static int dc = 0;
 124         char dname[256];
 125 #endif
 126
 127         if (rfence)
 128                 *rfence = r600_create_fence(rctx);
 129
 130         if (!rctx->ctx.pm4_cdwords)
 131                 return;
 132
 133 #if 0
 134         sprintf(dname, "gallium-%08d.bof", dc);
 135         if (dc < 20) {
 136                 r600_context_dump_bof(&rctx->ctx, dname);
 137                 R600_ERR("dumped %s\n", dname);
 138         }
 139         dc++;
 140 #endif
 141         r600_context_flush(&rctx->ctx);
 142
 143         /* XXX This shouldn't be really necessary, but removing it breaks some tests.
 144          * Needless buffer reallocations may significantly increase memory consumption,
 145          * so getting rid of this call is important. */
 146         u_upload_flush(rctx->vbuf_mgr->uploader);
 147 }
 148
 149 static void r600_update_num_contexts(struct r600_screen *rscreen, int diff)
 150 {
 151         pipe_mutex_lock(rscreen->mutex_num_contexts);
 152         if (diff > 0) {
 153                 rscreen->num_contexts++;
 154
 155                 if (rscreen->num_contexts > 1)
 156                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 157                                                     UTIL_SLAB_MULTITHREADED);
 158         } else {
 159                 rscreen->num_contexts--;
 160
 161                 if (rscreen->num_contexts <= 1)
 162                         util_slab_set_thread_safety(&rscreen->pool_buffers,
 163                                                     UTIL_SLAB_SINGLETHREADED);
 164         }
 165         pipe_mutex_unlock(rscreen->mutex_num_contexts);
 166 }
 167
 168 static void r600_destroy_context(struct pipe_context *context)
 169 {
 170         struct r600_pipe_context *rctx = (struct r600_pipe_context *)context;
 171
 172         rctx->context.delete_depth_stencil_alpha_state(&rctx->context, rctx->custom_dsa_flush);
 173         util_unreference_framebuffer_state(&rctx->framebuffer);
 174
 175         r600_context_fini(&rctx->ctx);
 176
 177         util_blitter_destroy(rctx->blitter);
 178
 179         for (int i = 0; i < R600_PIPE_NSTATES; i++) {
 180                 free(rctx->states[i]);
 181         }
 182
 183         u_vbuf_mgr_destroy(rctx->vbuf_mgr);
 184         util_slab_destroy(&rctx->pool_transfers);
 185
 186         if (rctx->fences.bo) {
 187                 struct r600_fence_block *entry, *tmp;
 188
 189                 LIST_FOR_EACH_ENTRY_SAFE(entry, tmp, &rctx->fences.blocks, head) {
 190                         LIST_DEL(&entry->head);
 191                         FREE(entry);
 192                 }
 193
 194                 r600_bo_unmap(rctx->radeon, rctx->fences.bo);
 195                 r600_bo_reference(rctx->radeon, &rctx->fences.bo, NULL);
 196         }
 197
 198         r600_update_num_contexts(rctx->screen, -1);
 199
 200         FREE(rctx);
 201 }
 202
 203 static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
 204 {
 205         struct r600_pipe_context *rctx = CALLOC_STRUCT(r600_pipe_context);
 206         struct r600_screen* rscreen = (struct r600_screen *)screen;
 207         enum chip_class class;
 208
 209         if (rctx == NULL)
 210                 return NULL;
 211
 212         r600_update_num_contexts(rscreen, 1);
 213
 214         rctx->context.winsys = rscreen->screen.winsys;
 215         rctx->context.screen = screen;
 216         rctx->context.priv = priv;
 217         rctx->context.destroy = r600_destroy_context;
 218         rctx->context.flush = r600_flush;
 219
 220         /* Easy accessing of screen/winsys. */
 221         rctx->screen = rscreen;
 222         rctx->radeon = rscreen->radeon;
 223         rctx->family = r600_get_family(rctx->radeon);
 224
 225         rctx->fences.bo = NULL;
 226         rctx->fences.data = NULL;
 227         rctx->fences.next_index = 0;
 228         LIST_INITHEAD(&rctx->fences.pool);
 229         LIST_INITHEAD(&rctx->fences.blocks);
 230
 231         r600_init_blit_functions(rctx);
 232         r600_init_query_functions(rctx);
 233         r600_init_context_resource_functions(rctx);
 234         r600_init_surface_functions(rctx);
 235         rctx->context.draw_vbo = r600_draw_vbo;
 236
 237         switch (r600_get_family(rctx->radeon)) {
 238         case CHIP_R600:
 239         case CHIP_RV610:
 240         case CHIP_RV630:
 241         case CHIP_RV670:
 242         case CHIP_RV620:
 243         case CHIP_RV635:
 244         case CHIP_RS780:
 245         case CHIP_RS880:
 246         case CHIP_RV770:
 247         case CHIP_RV730:
 248         case CHIP_RV710:
 249         case CHIP_RV740:
 250                 r600_init_state_functions(rctx);
 251                 if (r600_context_init(&rctx->ctx, rctx->radeon)) {
 252                         r600_destroy_context(&rctx->context);
 253                         return NULL;
 254                 }
 255                 r600_init_config(rctx);
 256                 break;
 257         case CHIP_CEDAR:
 258         case CHIP_REDWOOD:
 259         case CHIP_JUNIPER:
 260         case CHIP_CYPRESS:
 261         case CHIP_HEMLOCK:
 262         case CHIP_PALM:
 263         case CHIP_BARTS:
 264         case CHIP_TURKS:
 265         case CHIP_CAICOS:
 266                 evergreen_init_state_functions(rctx);
 267                 if (evergreen_context_init(&rctx->ctx, rctx->radeon)) {
 268                         r600_destroy_context(&rctx->context);
 269                         return NULL;
 270                 }
 271                 evergreen_init_config(rctx);
 272                 break;
 273         default:
 274                 R600_ERR("unsupported family %d\n", r600_get_family(rctx->radeon));
 275                 r600_destroy_context(&rctx->context);
 276                 return NULL;
 277         }
 278
 279         util_slab_create(&rctx->pool_transfers,
 280                          sizeof(struct pipe_transfer), 64,
 281                          UTIL_SLAB_SINGLETHREADED);
 282
 283         rctx->vbuf_mgr = u_vbuf_mgr_create(&rctx->context, 1024 * 1024, 256,
 284                                            PIPE_BIND_VERTEX_BUFFER |
 285                                            PIPE_BIND_INDEX_BUFFER |
 286                                            PIPE_BIND_CONSTANT_BUFFER,
 287                                            U_VERTEX_FETCH_DWORD_ALIGNED);
 288         if (!rctx->vbuf_mgr) {
 289                 r600_destroy_context(&rctx->context);
 290                 return NULL;
 291         }
 292
 293         rctx->blitter = util_blitter_create(&rctx->context);
 294         if (rctx->blitter == NULL) {
 295                 r600_destroy_context(&rctx->context);
 296                 return NULL;
 297         }
 298
 299         class = r600_get_family_class(rctx->radeon);
 300         if (class == R600 || class == R700)
 301                 rctx->custom_dsa_flush = r600_create_db_flush_dsa(rctx);
 302         else
 303                 rctx->custom_dsa_flush = evergreen_create_db_flush_dsa(rctx);
 304
 305         return &rctx->context;
 306 }
 307
 308 /*
 309  * pipe_screen
 310  */
 311 static const char* r600_get_vendor(struct pipe_screen* pscreen)
 312 {
 313         return "X.Org";
 314 }
 315
 316 static const char *r600_get_family_name(enum radeon_family family)
 317 {
 318         switch(family) {
 319         case CHIP_R600: return "AMD R600";
 320         case CHIP_RV610: return "AMD RV610";
 321         case CHIP_RV630: return "AMD RV630";
 322         case CHIP_RV670: return "AMD RV670";
 323         case CHIP_RV620: return "AMD RV620";
 324         case CHIP_RV635: return "AMD RV635";
 325         case CHIP_RS780: return "AMD RS780";
 326         case CHIP_RS880: return "AMD RS880";
 327         case CHIP_RV770: return "AMD RV770";
 328         case CHIP_RV730: return "AMD RV730";
 329         case CHIP_RV710: return "AMD RV710";
 330         case CHIP_RV740: return "AMD RV740";
 331         case CHIP_CEDAR: return "AMD CEDAR";
 332         case CHIP_REDWOOD: return "AMD REDWOOD";
 333         case CHIP_JUNIPER: return "AMD JUNIPER";
 334         case CHIP_CYPRESS: return "AMD CYPRESS";
 335         case CHIP_HEMLOCK: return "AMD HEMLOCK";
 336         case CHIP_PALM: return "AMD PALM";
 337         case CHIP_BARTS: return "AMD BARTS";
 338         case CHIP_TURKS: return "AMD TURKS";
 339         case CHIP_CAICOS: return "AMD CAICOS";
 340         default: return "AMD unknown";
 341         }
 342 }
 343
 344 static const char* r600_get_name(struct pipe_screen* pscreen)
 345 {
 346         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 347         enum radeon_family family = r600_get_family(rscreen->radeon);
 348
 349         return r600_get_family_name(family);
 350 }
 351
 352 static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 353 {
 354         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 355         enum radeon_family family = r600_get_family(rscreen->radeon);
 356
 357         switch (param) {
 358         /* Supported features (boolean caps). */
 359         case PIPE_CAP_NPOT_TEXTURES:
 360         case PIPE_CAP_TWO_SIDED_STENCIL:
 361         case PIPE_CAP_GLSL:
 362         case PIPE_CAP_DUAL_SOURCE_BLEND:
 363         case PIPE_CAP_ANISOTROPIC_FILTER:
 364         case PIPE_CAP_POINT_SPRITE:
 365         case PIPE_CAP_OCCLUSION_QUERY:
 366         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 367         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 368         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 369         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 370         case PIPE_CAP_SM3:
 371         case PIPE_CAP_TEXTURE_SWIZZLE:
 372         case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 373         case PIPE_CAP_DEPTH_CLAMP:
 374         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 375         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 376         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 377                 return 1;
 378         case PIPE_CAP_INDEP_BLEND_ENABLE:
 379                 /* R600 doesn't support per-MRT blends */
 380                 if (family == CHIP_R600)
 381                         return 0;
 382                 else
 383                         return 1;
 384
 385         case PIPE_CAP_TGSI_INSTANCEID:
 386                 return 0;
 387
 388         /* Unsupported features (boolean caps). */
 389         case PIPE_CAP_STREAM_OUTPUT:
 390         case PIPE_CAP_PRIMITIVE_RESTART:
 391         case PIPE_CAP_INDEP_BLEND_FUNC: /* FIXME allow this */
 392         case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 393                 /* R600 doesn't support per-MRT blends */
 394                 if (family == CHIP_R600)
 395                         return 0;
 396                 else
 397                         return 0;
 398
 399         case PIPE_CAP_ARRAY_TEXTURES:
 400                 /* fix once the CS checker upstream is fixed */
 401                 return debug_get_bool_option("R600_ARRAY_TEXTURE", FALSE);
 402
 403         /* Texturing. */
 404         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 405         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 406         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 407                 if (family >= CHIP_CEDAR)
 408                         return 15;
 409                 else
 410                         return 14;
 411         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 412                 /* FIXME allow this once infrastructure is there */
 413                 return 16;
 414         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 415         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 416                 return 16;
 417
 418         /* Render targets. */
 419         case PIPE_CAP_MAX_RENDER_TARGETS:
 420                 /* FIXME some r6xx are buggy and can only do 4 */
 421                 return 8;
 422
 423         /* Fragment coordinate conventions. */
 424         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 425         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 426                 return 1;
 427         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 428         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 429                 return 0;
 430
 431         /* Timer queries, present when the clock frequency is non zero. */
 432         case PIPE_CAP_TIMER_QUERY:
 433                 return r600_get_clock_crystal_freq(rscreen->radeon) != 0;
 434
 435         default:
 436                 R600_ERR("r600: unknown param %d\n", param);
 437                 return 0;
 438         }
 439 }
 440
 441 static float r600_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param)
 442 {
 443         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 444         enum radeon_family family = r600_get_family(rscreen->radeon);
 445
 446         switch (param) {
 447         case PIPE_CAP_MAX_LINE_WIDTH:
 448         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 449         case PIPE_CAP_MAX_POINT_WIDTH:
 450         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 451                 if (family >= CHIP_CEDAR)
 452                         return 16384.0f;
 453                 else
 454                         return 8192.0f;
 455         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 456                 return 16.0f;
 457         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 458                 return 16.0f;
 459         default:
 460                 R600_ERR("r600: unsupported paramf %d\n", param);
 461                 return 0.0f;
 462         }
 463 }
 464
 465 static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enum pipe_shader_cap param)
 466 {
 467         switch(shader)
 468         {
 469         case PIPE_SHADER_FRAGMENT:
 470         case PIPE_SHADER_VERTEX:
 471                 break;
 472         case PIPE_SHADER_GEOMETRY:
 473                 /* TODO: support and enable geometry programs */
 474                 return 0;
 475         default:
 476                 /* TODO: support tessellation on Evergreen */
 477                 return 0;
 478         }
 479
 480         /* TODO: all these should be fixed, since r600 surely supports much more! */
 481         switch (param) {
 482         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 483         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 484         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 485         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 486                 return 16384;
 487         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 488                 return 8; /* FIXME */
 489         case PIPE_SHADER_CAP_MAX_INPUTS:
 490                 if(shader == PIPE_SHADER_FRAGMENT)
 491                         return 10;
 492                 else
 493                         return 16;
 494         case PIPE_SHADER_CAP_MAX_TEMPS:
 495                 return 256; //max native temporaries
 496         case PIPE_SHADER_CAP_MAX_ADDRS:
 497                 return 1; //max native address registers/* FIXME Isn't this equal to TEMPS? */
 498         case PIPE_SHADER_CAP_MAX_CONSTS:
 499                 return R600_MAX_CONST_BUFFER_SIZE;
 500         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 501                 return R600_MAX_CONST_BUFFERS;
 502         case PIPE_SHADER_CAP_MAX_PREDS:
 503                 return 0; /* FIXME */
 504         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 505                 return 1;
 506         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 507         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 508         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 509         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 510                 return 1;
 511         case PIPE_SHADER_CAP_SUBROUTINES:
 512                 return 0;
 513         default:
 514                 return 0;
 515         }
 516 }
 517
 518 static boolean r600_is_format_supported(struct pipe_screen* screen,
 519                                         enum pipe_format format,
 520                                         enum pipe_texture_target target,
 521                                         unsigned sample_count,
 522                                         unsigned usage)
 523 {
 524         unsigned retval = 0;
 525         if (target >= PIPE_MAX_TEXTURE_TYPES) {
 526                 R600_ERR("r600: unsupported texture type %d\n", target);
 527                 return FALSE;
 528         }
 529
 530         if (!util_format_is_supported(format, usage))
 531                 return FALSE;
 532
 533         /* Multisample */
 534         if (sample_count > 1)
 535                 return FALSE;
 536
 537         if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 538             r600_is_sampler_format_supported(screen, format)) {
 539                 retval |= PIPE_BIND_SAMPLER_VIEW;
 540         }
 541
 542         if ((usage & (PIPE_BIND_RENDER_TARGET |
 543                         PIPE_BIND_DISPLAY_TARGET |
 544                         PIPE_BIND_SCANOUT |
 545                         PIPE_BIND_SHARED)) &&
 546                         r600_is_colorbuffer_format_supported(format)) {
 547                 retval |= usage &
 548                         (PIPE_BIND_RENDER_TARGET |
 549                          PIPE_BIND_DISPLAY_TARGET |
 550                          PIPE_BIND_SCANOUT |
 551                          PIPE_BIND_SHARED);
 552         }
 553
 554         if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
 555             r600_is_zs_format_supported(format)) {
 556                 retval |= PIPE_BIND_DEPTH_STENCIL;
 557         }
 558
 559         if (usage & PIPE_BIND_VERTEX_BUFFER) {
 560                 struct r600_screen *rscreen = (struct r600_screen *)screen;
 561                 enum radeon_family family = r600_get_family(rscreen->radeon);
 562
 563                 if (r600_is_vertex_format_supported(format, family)) {
 564                         retval |= PIPE_BIND_VERTEX_BUFFER;
 565                 }
 566         }
 567
 568         if (usage & PIPE_BIND_TRANSFER_READ)
 569                 retval |= PIPE_BIND_TRANSFER_READ;
 570         if (usage & PIPE_BIND_TRANSFER_WRITE)
 571                 retval |= PIPE_BIND_TRANSFER_WRITE;
 572
 573         return retval == usage;
 574 }
 575
 576 static void r600_destroy_screen(struct pipe_screen* pscreen)
 577 {
 578         struct r600_screen *rscreen = (struct r600_screen *)pscreen;
 579
 580         if (rscreen == NULL)
 581                 return;
 582
 583         radeon_decref(rscreen->radeon);
 584
 585         util_slab_destroy(&rscreen->pool_buffers);
 586         pipe_mutex_destroy(rscreen->mutex_num_contexts);
 587         FREE(rscreen);
 588 }
 589
 590 static void r600_fence_reference(struct pipe_screen *pscreen,
 591                                  struct pipe_fence_handle **ptr,
 592                                  struct pipe_fence_handle *fence)
 593 {
 594         struct r600_fence **oldf = (struct r600_fence**)ptr;
 595         struct r600_fence *newf = (struct r600_fence*)fence;
 596
 597         if (pipe_reference(&(*oldf)->reference, &newf->reference)) {
 598                 struct r600_pipe_context *ctx = (*oldf)->ctx;
 599                 LIST_ADDTAIL(&(*oldf)->head, &ctx->fences.pool);
 600         }
 601
 602         *ptr = fence;
 603 }
 604
 605 static boolean r600_fence_signalled(struct pipe_screen *pscreen,
 606                                     struct pipe_fence_handle *fence)
 607 {
 608         struct r600_fence *rfence = (struct r600_fence*)fence;
 609         struct r600_pipe_context *ctx = rfence->ctx;
 610
 611         return ctx->fences.data[rfence->index];
 612 }
 613
 614 static boolean r600_fence_finish(struct pipe_screen *pscreen,
 615                                  struct pipe_fence_handle *fence,
 616                                  uint64_t timeout)
 617 {
 618         struct r600_fence *rfence = (struct r600_fence*)fence;
 619         struct r600_pipe_context *ctx = rfence->ctx;
 620         int64_t start_time = 0;
 621         unsigned spins = 0;
 622
 623         if (timeout != PIPE_TIMEOUT_INFINITE) {
 624                 start_time = os_time_get();
 625
 626                 /* Convert to microseconds. */
 627                 timeout /= 1000;
 628         }
 629
 630         while (ctx->fences.data[rfence->index] == 0) {
 631                 if (++spins % 256)
 632                         continue;
 633 #ifdef PIPE_OS_UNIX
 634                 sched_yield();
 635 #else
 636                 os_time_sleep(10);
 637 #endif
 638                 if (timeout != PIPE_TIMEOUT_INFINITE &&
 639                     os_time_get() - start_time >= timeout) {
 640                         return FALSE;
 641                 }
 642         }
 643
 644         return TRUE;
 645 }
 646
 647 struct pipe_screen *r600_screen_create(struct radeon *radeon)
 648 {
 649         struct r600_screen *rscreen;
 650
 651         rscreen = CALLOC_STRUCT(r600_screen);
 652         if (rscreen == NULL) {
 653                 return NULL;
 654         }
 655
 656         rscreen->radeon = radeon;
 657         rscreen->screen.winsys = (struct pipe_winsys*)radeon;
 658         rscreen->screen.destroy = r600_destroy_screen;
 659         rscreen->screen.get_name = r600_get_name;
 660         rscreen->screen.get_vendor = r600_get_vendor;
 661         rscreen->screen.get_param = r600_get_param;
 662         rscreen->screen.get_shader_param = r600_get_shader_param;
 663         rscreen->screen.get_paramf = r600_get_paramf;
 664         rscreen->screen.is_format_supported = r600_is_format_supported;
 665         rscreen->screen.context_create = r600_create_context;
 666         rscreen->screen.video_context_create = r600_video_create;
 667         rscreen->screen.fence_reference = r600_fence_reference;
 668         rscreen->screen.fence_signalled = r600_fence_signalled;
 669         rscreen->screen.fence_finish = r600_fence_finish;
 670         r600_init_screen_resource_functions(&rscreen->screen);
 671
 672         rscreen->tiling_info = r600_get_tiling_info(radeon);
 673         util_format_s3tc_init();
 674
 675         util_slab_create(&rscreen->pool_buffers,
 676                          sizeof(struct r600_resource_buffer), 64,
 677                          UTIL_SLAB_SINGLETHREADED);
 678
 679         pipe_mutex_init(rscreen->mutex_num_contexts);
 680
 681         return &rscreen->screen;
 682 }