src/gallium/winsys/radeon/drm/radeon_drm_winsys.c

   1 /*
   2  * Copyright © 2009 Corbin Simpson
   3  * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  15  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  16  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  17  * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
  18  * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * The above copyright notice and this permission notice (including the
  24  * next paragraph) shall be included in all copies or substantial portions
  25  * of the Software.
  26  */
  27 /*
  28  * Authors:
  29  *      Corbin Simpson <MostAwesomeDude@gmail.com>
  30  *      Joakim Sindholt <opensource@zhasha.com>
  31  *      Marek Olšák <maraeo@gmail.com>
  32  */
  33
  34 #include "radeon_drm_bo.h"
  35 #include "radeon_drm_cs.h"
  36 #include "radeon_drm_public.h"
  37
  38 #include "pipebuffer/pb_bufmgr.h"
  39 #include "util/u_memory.h"
  40 #include "util/u_hash_table.h"
  41
  42 #include <xf86drm.h>
  43 #include <stdio.h>
  44 #include <sys/types.h>
  45 #include <sys/stat.h>
  46 #include <unistd.h>
  47
  48 /*
  49  * this are copy from radeon_drm, once an updated libdrm is released
  50  * we should bump configure.ac requirement for it and remove the following
  51  * field
  52  */
  53 #ifndef RADEON_INFO_TILING_CONFIG
  54 #define RADEON_INFO_TILING_CONFIG 6
  55 #endif
  56
  57 #ifndef RADEON_INFO_WANT_HYPERZ
  58 #define RADEON_INFO_WANT_HYPERZ 7
  59 #endif
  60
  61 #ifndef RADEON_INFO_WANT_CMASK
  62 #define RADEON_INFO_WANT_CMASK 8
  63 #endif
  64
  65 #ifndef RADEON_INFO_CLOCK_CRYSTAL_FREQ
  66 #define RADEON_INFO_CLOCK_CRYSTAL_FREQ 9
  67 #endif
  68
  69 #ifndef RADEON_INFO_NUM_BACKENDS
  70 #define RADEON_INFO_NUM_BACKENDS 0xa
  71 #endif
  72
  73 #ifndef RADEON_INFO_NUM_TILE_PIPES
  74 #define RADEON_INFO_NUM_TILE_PIPES 0xb
  75 #endif
  76
  77 #ifndef RADEON_INFO_BACKEND_MAP
  78 #define RADEON_INFO_BACKEND_MAP 0xd
  79 #endif
  80
  81 #ifndef RADEON_INFO_VA_START
  82 /* virtual address start, va < start are reserved by the kernel */
  83 #define RADEON_INFO_VA_START        0x0e
  84 /* maximum size of ib using the virtual memory cs */
  85 #define RADEON_INFO_IB_VM_MAX_SIZE  0x0f
  86 #endif
  87
  88 #ifndef RADEON_INFO_MAX_PIPES
  89 #define RADEON_INFO_MAX_PIPES 0x10
  90 #endif
  91
  92 #ifndef RADEON_INFO_TIMESTAMP
  93 #define RADEON_INFO_TIMESTAMP 0x11
  94 #endif
  95
  96 #ifndef RADEON_INFO_RING_WORKING
  97 #define RADEON_INFO_RING_WORKING 0x15
  98 #endif
  99
 100 #ifndef RADEON_CS_RING_UVD
 101 #define RADEON_CS_RING_UVD      3
 102 #endif
 103
 104 static struct util_hash_table *fd_tab = NULL;
 105
 106 /* Enable/disable feature access for one command stream.
 107  * If enable == TRUE, return TRUE on success.
 108  * Otherwise, return FALSE.
 109  *
 110  * We basically do the same thing kernel does, because we have to deal
 111  * with multiple contexts (here command streams) backed by one winsys. */
 112 static boolean radeon_set_fd_access(struct radeon_drm_cs *applier,
 113                                     struct radeon_drm_cs **owner,
 114                                     pipe_mutex *mutex,
 115                                     unsigned request, const char *request_name,
 116                                     boolean enable)
 117 {
 118     struct drm_radeon_info info;
 119     unsigned value = enable ? 1 : 0;
 120
 121     memset(&info, 0, sizeof(info));
 122
 123     pipe_mutex_lock(*mutex);
 124
 125     /* Early exit if we are sure the request will fail. */
 126     if (enable) {
 127         if (*owner) {
 128             pipe_mutex_unlock(*mutex);
 129             return FALSE;
 130         }
 131     } else {
 132         if (*owner != applier) {
 133             pipe_mutex_unlock(*mutex);
 134             return FALSE;
 135         }
 136     }
 137
 138     /* Pass through the request to the kernel. */
 139     info.value = (unsigned long)&value;
 140     info.request = request;
 141     if (drmCommandWriteRead(applier->ws->fd, DRM_RADEON_INFO,
 142                             &info, sizeof(info)) != 0) {
 143         pipe_mutex_unlock(*mutex);
 144         return FALSE;
 145     }
 146
 147     /* Update the rights in the winsys. */
 148     if (enable) {
 149         if (value) {
 150             *owner = applier;
 151             printf("radeon: Acquired access to %s.\n", request_name);
 152             pipe_mutex_unlock(*mutex);
 153             return TRUE;
 154         }
 155     } else {
 156         *owner = NULL;
 157         printf("radeon: Released access to %s.\n", request_name);
 158     }
 159
 160     pipe_mutex_unlock(*mutex);
 161     return FALSE;
 162 }
 163
 164 static boolean radeon_get_drm_value(int fd, unsigned request,
 165                                     const char *errname, uint32_t *out)
 166 {
 167     struct drm_radeon_info info;
 168     int retval;
 169
 170     memset(&info, 0, sizeof(info));
 171
 172     info.value = (unsigned long)out;
 173     info.request = request;
 174
 175     retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info));
 176     if (retval) {
 177         if (errname) {
 178             fprintf(stderr, "radeon: Failed to get %s, error number %d\n",
 179                     errname, retval);
 180         }
 181         return FALSE;
 182     }
 183     return TRUE;
 184 }
 185
 186 /* Helper function to do the ioctls needed for setup and init. */
 187 static boolean do_winsys_init(struct radeon_drm_winsys *ws)
 188 {
 189     struct drm_radeon_gem_info gem_info;
 190     int retval;
 191     drmVersionPtr version;
 192
 193     memset(&gem_info, 0, sizeof(gem_info));
 194
 195     /* We do things in a specific order here.
 196      *
 197      * DRM version first. We need to be sure we're running on a KMS chipset.
 198      * This is also for some features.
 199      *
 200      * Then, the PCI ID. This is essential and should return usable numbers
 201      * for all Radeons. If this fails, we probably got handed an FD for some
 202      * non-Radeon card.
 203      *
 204      * The GEM info is actually bogus on the kernel side, as well as our side
 205      * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
 206      * we don't actually use the info for anything yet.
 207      *
 208      * The GB and Z pipe requests should always succeed, but they might not
 209      * return sensical values for all chipsets, but that's alright because
 210      * the pipe drivers already know that.
 211      */
 212
 213     /* Get DRM version. */
 214     version = drmGetVersion(ws->fd);
 215     if (version->version_major != 2 ||
 216         version->version_minor < 3) {
 217         fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is "
 218                 "only compatible with 2.3.x (kernel 2.6.34) or later.\n",
 219                 __FUNCTION__,
 220                 version->version_major,
 221                 version->version_minor,
 222                 version->version_patchlevel);
 223         drmFreeVersion(version);
 224         return FALSE;
 225     }
 226
 227     ws->info.drm_major = version->version_major;
 228     ws->info.drm_minor = version->version_minor;
 229     ws->info.drm_patchlevel = version->version_patchlevel;
 230     drmFreeVersion(version);
 231
 232     /* Get PCI ID. */
 233     if (!radeon_get_drm_value(ws->fd, RADEON_INFO_DEVICE_ID, "PCI ID",
 234                               &ws->info.pci_id))
 235         return FALSE;
 236
 237     /* Check PCI ID. */
 238     switch (ws->info.pci_id) {
 239 #define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_R300; break;
 240 #include "pci_ids/r300_pci_ids.h"
 241 #undef CHIPSET
 242
 243 #define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_R600; break;
 244 #include "pci_ids/r600_pci_ids.h"
 245 #undef CHIPSET
 246
 247 #define CHIPSET(pci_id, name, cfamily) case pci_id: ws->info.family = CHIP_##cfamily; ws->gen = DRV_SI; break;
 248 #include "pci_ids/radeonsi_pci_ids.h"
 249 #undef CHIPSET
 250
 251     default:
 252         fprintf(stderr, "radeon: Invalid PCI ID.\n");
 253         return FALSE;
 254     }
 255
 256     switch (ws->info.family) {
 257     default:
 258     case CHIP_UNKNOWN:
 259         fprintf(stderr, "radeon: Unknown family.\n");
 260         return FALSE;
 261     case CHIP_R300:
 262     case CHIP_R350:
 263     case CHIP_RV350:
 264     case CHIP_RV370:
 265     case CHIP_RV380:
 266     case CHIP_RS400:
 267     case CHIP_RC410:
 268     case CHIP_RS480:
 269         ws->info.chip_class = R300;
 270         break;
 271     case CHIP_R420:     /* R4xx-based cores. */
 272     case CHIP_R423:
 273     case CHIP_R430:
 274     case CHIP_R480:
 275     case CHIP_R481:
 276     case CHIP_RV410:
 277     case CHIP_RS600:
 278     case CHIP_RS690:
 279     case CHIP_RS740:
 280         ws->info.chip_class = R400;
 281         break;
 282     case CHIP_RV515:    /* R5xx-based cores. */
 283     case CHIP_R520:
 284     case CHIP_RV530:
 285     case CHIP_R580:
 286     case CHIP_RV560:
 287     case CHIP_RV570:
 288         ws->info.chip_class = R500;
 289         break;
 290     case CHIP_R600:
 291     case CHIP_RV610:
 292     case CHIP_RV630:
 293     case CHIP_RV670:
 294     case CHIP_RV620:
 295     case CHIP_RV635:
 296     case CHIP_RS780:
 297     case CHIP_RS880:
 298         ws->info.chip_class = R600;
 299         break;
 300     case CHIP_RV770:
 301     case CHIP_RV730:
 302     case CHIP_RV710:
 303     case CHIP_RV740:
 304         ws->info.chip_class = R700;
 305         break;
 306     case CHIP_CEDAR:
 307     case CHIP_REDWOOD:
 308     case CHIP_JUNIPER:
 309     case CHIP_CYPRESS:
 310     case CHIP_HEMLOCK:
 311     case CHIP_PALM:
 312     case CHIP_SUMO:
 313     case CHIP_SUMO2:
 314     case CHIP_BARTS:
 315     case CHIP_TURKS:
 316     case CHIP_CAICOS:
 317         ws->info.chip_class = EVERGREEN;
 318         break;
 319     case CHIP_CAYMAN:
 320     case CHIP_ARUBA:
 321         ws->info.chip_class = CAYMAN;
 322         break;
 323     case CHIP_TAHITI:
 324     case CHIP_PITCAIRN:
 325     case CHIP_VERDE:
 326     case CHIP_OLAND:
 327     case CHIP_HAINAN:
 328         ws->info.chip_class = SI;
 329         break;
 330     case CHIP_BONAIRE:
 331     case CHIP_KAVERI:
 332     case CHIP_KABINI:
 333     case CHIP_HAWAII:
 334         ws->info.chip_class = CIK;
 335         break;
 336     }
 337
 338     /* Check for dma */
 339     ws->info.r600_has_dma = FALSE;
 340     if (ws->info.chip_class >= R700 && ws->info.drm_minor >= 27) {
 341         ws->info.r600_has_dma = TRUE;
 342     }
 343
 344     /* Check for UVD */
 345     ws->info.has_uvd = FALSE;
 346     if (ws->info.drm_minor >= 32) {
 347         uint32_t value = RADEON_CS_RING_UVD;
 348         if (radeon_get_drm_value(ws->fd, RADEON_INFO_RING_WORKING,
 349                                  "UVD Ring working", &value))
 350             ws->info.has_uvd = value;
 351     }
 352
 353     /* Get GEM info. */
 354     retval = drmCommandWriteRead(ws->fd, DRM_RADEON_GEM_INFO,
 355             &gem_info, sizeof(gem_info));
 356     if (retval) {
 357         fprintf(stderr, "radeon: Failed to get MM info, error number %d\n",
 358                 retval);
 359         return FALSE;
 360     }
 361     ws->info.gart_size = gem_info.gart_size;
 362     ws->info.vram_size = gem_info.vram_size;
 363
 364     ws->num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
 365
 366     /* Generation-specific queries. */
 367     if (ws->gen == DRV_R300) {
 368         if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_GB_PIPES,
 369                                   "GB pipe count",
 370                                   &ws->info.r300_num_gb_pipes))
 371             return FALSE;
 372
 373         if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_Z_PIPES,
 374                                   "Z pipe count",
 375                                   &ws->info.r300_num_z_pipes))
 376             return FALSE;
 377     }
 378     else if (ws->gen >= DRV_R600) {
 379         if (ws->info.drm_minor >= 9 &&
 380             !radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_BACKENDS,
 381                                   "num backends",
 382                                   &ws->info.r600_num_backends))
 383             return FALSE;
 384
 385         /* get the GPU counter frequency, failure is not fatal */
 386         radeon_get_drm_value(ws->fd, RADEON_INFO_CLOCK_CRYSTAL_FREQ, NULL,
 387                              &ws->info.r600_clock_crystal_freq);
 388
 389         radeon_get_drm_value(ws->fd, RADEON_INFO_TILING_CONFIG, NULL,
 390                              &ws->info.r600_tiling_config);
 391
 392         if (ws->info.drm_minor >= 11) {
 393             radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_TILE_PIPES, NULL,
 394                                  &ws->info.r600_num_tile_pipes);
 395
 396             if (radeon_get_drm_value(ws->fd, RADEON_INFO_BACKEND_MAP, NULL,
 397                                       &ws->info.r600_backend_map))
 398                 ws->info.r600_backend_map_valid = TRUE;
 399         }
 400
 401         ws->info.r600_virtual_address = FALSE;
 402         if (ws->info.drm_minor >= 13) {
 403             ws->info.r600_virtual_address = TRUE;
 404             if (!radeon_get_drm_value(ws->fd, RADEON_INFO_VA_START, NULL,
 405                                       &ws->info.r600_va_start))
 406                 ws->info.r600_virtual_address = FALSE;
 407             if (!radeon_get_drm_value(ws->fd, RADEON_INFO_IB_VM_MAX_SIZE, NULL,
 408                                       &ws->info.r600_ib_vm_max_size))
 409                 ws->info.r600_virtual_address = FALSE;
 410         }
 411         if (ws->gen == DRV_R600 && !debug_get_bool_option("RADEON_VA", FALSE))
 412                 ws->info.r600_virtual_address = FALSE;
 413     }
 414
 415     /* Get max pipes, this is only needed for compute shaders.  All evergreen+
 416      * chips have at least 2 pipes, so we use 2 as a default. */
 417     ws->info.r600_max_pipes = 2;
 418     radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_PIPES, NULL,
 419                          &ws->info.r600_max_pipes);
 420
 421     if (radeon_get_drm_value(ws->fd, RADEON_INFO_SI_TILE_MODE_ARRAY, NULL,
 422                              ws->info.si_tile_mode_array)) {
 423         ws->info.si_tile_mode_array_valid = TRUE;
 424     }
 425
 426     if (radeon_get_drm_value(ws->fd, RADEON_INFO_CIK_MACROTILE_MODE_ARRAY, NULL,
 427                              ws->info.cik_macrotile_mode_array)) {
 428         ws->info.cik_macrotile_mode_array_valid = TRUE;
 429     }
 430
 431     return TRUE;
 432 }
 433
 434 static void radeon_winsys_destroy(struct radeon_winsys *rws)
 435 {
 436     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
 437
 438     if (ws->thread) {
 439         ws->kill_thread = 1;
 440         pipe_semaphore_signal(&ws->cs_queued);
 441         pipe_thread_wait(ws->thread);
 442     }
 443     pipe_semaphore_destroy(&ws->cs_queued);
 444
 445     pipe_mutex_destroy(ws->hyperz_owner_mutex);
 446     pipe_mutex_destroy(ws->cmask_owner_mutex);
 447     pipe_mutex_destroy(ws->cs_stack_lock);
 448
 449     ws->cman->destroy(ws->cman);
 450     ws->kman->destroy(ws->kman);
 451     if (ws->gen >= DRV_R600) {
 452         radeon_surface_manager_free(ws->surf_man);
 453     }
 454     if (fd_tab) {
 455         util_hash_table_remove(fd_tab, intptr_to_pointer(ws->fd));
 456     }
 457     FREE(rws);
 458 }
 459
 460 static void radeon_query_info(struct radeon_winsys *rws,
 461                               struct radeon_info *info)
 462 {
 463     *info = ((struct radeon_drm_winsys *)rws)->info;
 464 }
 465
 466 static boolean radeon_cs_request_feature(struct radeon_winsys_cs *rcs,
 467                                          enum radeon_feature_id fid,
 468                                          boolean enable)
 469 {
 470     struct radeon_drm_cs *cs = radeon_drm_cs(rcs);
 471
 472     switch (fid) {
 473     case RADEON_FID_R300_HYPERZ_ACCESS:
 474         return radeon_set_fd_access(cs, &cs->ws->hyperz_owner,
 475                                     &cs->ws->hyperz_owner_mutex,
 476                                     RADEON_INFO_WANT_HYPERZ, "Hyper-Z",
 477                                     enable);
 478
 479     case RADEON_FID_R300_CMASK_ACCESS:
 480         return radeon_set_fd_access(cs, &cs->ws->cmask_owner,
 481                                     &cs->ws->cmask_owner_mutex,
 482                                     RADEON_INFO_WANT_CMASK, "AA optimizations",
 483                                     enable);
 484     }
 485     return FALSE;
 486 }
 487
 488 static int radeon_drm_winsys_surface_init(struct radeon_winsys *rws,
 489                                           struct radeon_surface *surf)
 490 {
 491     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
 492
 493     return radeon_surface_init(ws->surf_man, surf);
 494 }
 495
 496 static int radeon_drm_winsys_surface_best(struct radeon_winsys *rws,
 497                                           struct radeon_surface *surf)
 498 {
 499     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
 500
 501     return radeon_surface_best(ws->surf_man, surf);
 502 }
 503
 504 static uint64_t radeon_query_value(struct radeon_winsys *rws,
 505                                    enum radeon_value_id value)
 506 {
 507     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws;
 508     uint64_t ts = 0;
 509
 510     switch (value) {
 511     case RADEON_REQUESTED_VRAM_MEMORY:
 512         return ws->allocated_vram;
 513     case RADEON_REQUESTED_GTT_MEMORY:
 514         return ws->allocated_gtt;
 515     case RADEON_BUFFER_WAIT_TIME_NS:
 516         return ws->buffer_wait_time;
 517     case RADEON_TIMESTAMP:
 518         if (ws->info.drm_minor < 20 || ws->gen < DRV_R600) {
 519             assert(0);
 520             return 0;
 521         }
 522
 523         radeon_get_drm_value(ws->fd, RADEON_INFO_TIMESTAMP, "timestamp",
 524                              (uint32_t*)&ts);
 525         return ts;
 526     }
 527     return 0;
 528 }
 529
 530 static unsigned hash_fd(void *key)
 531 {
 532     int fd = pointer_to_intptr(key);
 533     struct stat stat;
 534     fstat(fd, &stat);
 535
 536     return stat.st_dev ^ stat.st_ino ^ stat.st_rdev;
 537 }
 538
 539 static int compare_fd(void *key1, void *key2)
 540 {
 541     int fd1 = pointer_to_intptr(key1);
 542     int fd2 = pointer_to_intptr(key2);
 543     struct stat stat1, stat2;
 544     fstat(fd1, &stat1);
 545     fstat(fd2, &stat2);
 546
 547     return stat1.st_dev != stat2.st_dev ||
 548            stat1.st_ino != stat2.st_ino ||
 549            stat1.st_rdev != stat2.st_rdev;
 550 }
 551
 552 void radeon_drm_ws_queue_cs(struct radeon_drm_winsys *ws, struct radeon_drm_cs *cs)
 553 {
 554 retry:
 555     pipe_mutex_lock(ws->cs_stack_lock);
 556     if (ws->ncs >= RING_LAST) {
 557         /* no room left for a flush */
 558         pipe_mutex_unlock(ws->cs_stack_lock);
 559         goto retry;
 560     }
 561     ws->cs_stack[ws->ncs++] = cs;
 562     pipe_mutex_unlock(ws->cs_stack_lock);
 563     pipe_semaphore_signal(&ws->cs_queued);
 564 }
 565
 566 static PIPE_THREAD_ROUTINE(radeon_drm_cs_emit_ioctl, param)
 567 {
 568     struct radeon_drm_winsys *ws = (struct radeon_drm_winsys *)param;
 569     struct radeon_drm_cs *cs;
 570     unsigned i;
 571
 572     while (1) {
 573         pipe_semaphore_wait(&ws->cs_queued);
 574         if (ws->kill_thread)
 575             break;
 576
 577         pipe_mutex_lock(ws->cs_stack_lock);
 578         cs = ws->cs_stack[0];
 579         for (i = 1; i < ws->ncs; i++)
 580             ws->cs_stack[i - 1] = ws->cs_stack[i];
 581         ws->cs_stack[--ws->ncs] = NULL;
 582         pipe_mutex_unlock(ws->cs_stack_lock);
 583
 584         if (cs) {
 585             radeon_drm_cs_emit_ioctl_oneshot(cs, cs->cst);
 586             pipe_semaphore_signal(&cs->flush_completed);
 587         }
 588     }
 589     pipe_mutex_lock(ws->cs_stack_lock);
 590     for (i = 0; i < ws->ncs; i++) {
 591         pipe_semaphore_signal(&ws->cs_stack[i]->flush_completed);
 592         ws->cs_stack[i] = NULL;
 593     }
 594     ws->ncs = 0;
 595     pipe_mutex_unlock(ws->cs_stack_lock);
 596     return 0;
 597 }
 598
 599 DEBUG_GET_ONCE_BOOL_OPTION(thread, "RADEON_THREAD", TRUE)
 600 static PIPE_THREAD_ROUTINE(radeon_drm_cs_emit_ioctl, param);
 601
 602 PUBLIC struct radeon_winsys *radeon_drm_winsys_create(int fd)
 603 {
 604     struct radeon_drm_winsys *ws;
 605
 606     if (!fd_tab) {
 607         fd_tab = util_hash_table_create(hash_fd, compare_fd);
 608     }
 609
 610     ws = util_hash_table_get(fd_tab, intptr_to_pointer(fd));
 611     if (ws) {
 612         pipe_reference(NULL, &ws->base.reference);
 613         return &ws->base;
 614     }
 615
 616     ws = CALLOC_STRUCT(radeon_drm_winsys);
 617     if (!ws) {
 618         return NULL;
 619     }
 620     ws->fd = fd;
 621     util_hash_table_set(fd_tab, intptr_to_pointer(fd), ws);
 622
 623     if (!do_winsys_init(ws))
 624         goto fail;
 625
 626     /* Create managers. */
 627     ws->kman = radeon_bomgr_create(ws);
 628     if (!ws->kman)
 629         goto fail;
 630     ws->cman = pb_cache_manager_create(ws->kman, 1000000);
 631     if (!ws->cman)
 632         goto fail;
 633
 634     if (ws->gen >= DRV_R600) {
 635         ws->surf_man = radeon_surface_manager_new(fd);
 636         if (!ws->surf_man)
 637             goto fail;
 638     }
 639
 640     /* init reference */
 641     pipe_reference_init(&ws->base.reference, 1);
 642
 643     /* Set functions. */
 644     ws->base.destroy = radeon_winsys_destroy;
 645     ws->base.query_info = radeon_query_info;
 646     ws->base.cs_request_feature = radeon_cs_request_feature;
 647     ws->base.surface_init = radeon_drm_winsys_surface_init;
 648     ws->base.surface_best = radeon_drm_winsys_surface_best;
 649     ws->base.query_value = radeon_query_value;
 650
 651     radeon_bomgr_init_functions(ws);
 652     radeon_drm_cs_init_functions(ws);
 653
 654     pipe_mutex_init(ws->hyperz_owner_mutex);
 655     pipe_mutex_init(ws->cmask_owner_mutex);
 656     pipe_mutex_init(ws->cs_stack_lock);
 657
 658     ws->ncs = 0;
 659     pipe_semaphore_init(&ws->cs_queued, 0);
 660     if (ws->num_cpus > 1 && debug_get_option_thread())
 661         ws->thread = pipe_thread_create(radeon_drm_cs_emit_ioctl, ws);
 662
 663     return &ws->base;
 664
 665 fail:
 666     if (ws->cman)
 667         ws->cman->destroy(ws->cman);
 668     if (ws->kman)
 669         ws->kman->destroy(ws->kman);
 670     if (ws->surf_man)
 671         radeon_surface_manager_free(ws->surf_man);
 672     FREE(ws);
 673     return NULL;
 674 }