src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c

   1 /*
   2  * Copyright 2014, 2015 Red Hat.
   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 "virgl_vtest_winsys.h"
  25 #include "virgl_vtest_public.h"
  26 #include "util/u_memory.h"
  27 #include "util/u_format.h"
  28 #include "util/u_inlines.h"
  29 #include "state_tracker/drm_driver.h"
  30 #include "os/os_time.h"
  31
  32 static void *virgl_vtest_resource_map(struct virgl_winsys *vws, struct virgl_hw_res *res);
  33 static void virgl_vtest_resource_unmap(struct virgl_winsys *vws, struct virgl_hw_res *res);
  34 static inline boolean can_cache_resource(struct virgl_hw_res *res)
  35 {
  36    return res->cacheable == TRUE;
  37 }
  38
  39 static uint32_t vtest_get_transfer_size(struct virgl_hw_res *res,
  40                                         const struct pipe_box *box,
  41                                         uint32_t stride, uint32_t layer_stride,
  42                                         uint32_t level, uint32_t *valid_stride_p)
  43 {
  44    uint32_t valid_stride, valid_layer_stride;
  45
  46    valid_stride = util_format_get_stride(res->format, box->width);
  47    if (stride) {
  48       if (box->height > 1)
  49          valid_stride = stride;
  50    }
  51
  52    valid_layer_stride = util_format_get_2d_size(res->format, valid_stride,
  53                                                 box->height);
  54    if (layer_stride) {
  55       if (box->depth > 1)
  56          valid_layer_stride = layer_stride;
  57    }
  58
  59    *valid_stride_p = valid_stride;
  60    return valid_layer_stride * box->depth;
  61 }
  62
  63 static int
  64 virgl_vtest_transfer_put(struct virgl_winsys *vws,
  65                          struct virgl_hw_res *res,
  66                          const struct pipe_box *box,
  67                          uint32_t stride, uint32_t layer_stride,
  68                          uint32_t buf_offset, uint32_t level)
  69 {
  70    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
  71    uint32_t size;
  72    void *ptr;
  73    uint32_t valid_stride;
  74
  75    size = vtest_get_transfer_size(res, box, stride, layer_stride, level, &valid_stride);
  76
  77    virgl_vtest_send_transfer_cmd(vtws, VCMD_TRANSFER_PUT, res->res_handle,
  78                                  level, stride, layer_stride,
  79                                  box, size);
  80    ptr = virgl_vtest_resource_map(vws, res);
  81    virgl_vtest_send_transfer_put_data(vtws, ptr + buf_offset, size);
  82    virgl_vtest_resource_unmap(vws, res);
  83    return 0;
  84 }
  85
  86 static int
  87 virgl_vtest_transfer_get(struct virgl_winsys *vws,
  88                          struct virgl_hw_res *res,
  89                          const struct pipe_box *box,
  90                          uint32_t stride, uint32_t layer_stride,
  91                          uint32_t buf_offset, uint32_t level)
  92 {
  93    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
  94    uint32_t size;
  95    void *ptr;
  96    uint32_t valid_stride;
  97
  98    size = vtest_get_transfer_size(res, box, stride, layer_stride, level, &valid_stride);
  99
 100    virgl_vtest_send_transfer_cmd(vtws, VCMD_TRANSFER_GET, res->res_handle,
 101                                  level, stride, layer_stride,
 102                                  box, size);
 103
 104
 105    ptr = virgl_vtest_resource_map(vws, res);
 106    virgl_vtest_recv_transfer_get_data(vtws, ptr + buf_offset, size, valid_stride, box, res->format);
 107    virgl_vtest_resource_unmap(vws, res);
 108    return 0;
 109 }
 110
 111 static void virgl_hw_res_destroy(struct virgl_vtest_winsys *vtws,
 112                                  struct virgl_hw_res *res)
 113 {
 114    virgl_vtest_send_resource_unref(vtws, res->res_handle);
 115    if (res->dt)
 116       vtws->sws->displaytarget_destroy(vtws->sws, res->dt);
 117    free(res->ptr);
 118    FREE(res);
 119 }
 120
 121 static boolean virgl_vtest_resource_is_busy(struct virgl_vtest_winsys *vtws,
 122                                             struct virgl_hw_res *res)
 123 {
 124    /* implement busy check */
 125    int ret;
 126    ret = virgl_vtest_busy_wait(vtws, res->res_handle, 0);
 127
 128    if (ret < 0)
 129       return FALSE;
 130
 131    return ret == 1 ? TRUE : FALSE;
 132 }
 133
 134 static void
 135 virgl_cache_flush(struct virgl_vtest_winsys *vtws)
 136 {
 137    struct list_head *curr, *next;
 138    struct virgl_hw_res *res;
 139
 140    pipe_mutex_lock(vtws->mutex);
 141    curr = vtws->delayed.next;
 142    next = curr->next;
 143
 144    while (curr != &vtws->delayed) {
 145       res = LIST_ENTRY(struct virgl_hw_res, curr, head);
 146       LIST_DEL(&res->head);
 147       virgl_hw_res_destroy(vtws, res);
 148       curr = next;
 149       next = curr->next;
 150    }
 151    pipe_mutex_unlock(vtws->mutex);
 152 }
 153
 154 static void
 155 virgl_cache_list_check_free(struct virgl_vtest_winsys *vtws)
 156 {
 157    struct list_head *curr, *next;
 158    struct virgl_hw_res *res;
 159    int64_t now;
 160
 161    now = os_time_get();
 162    curr = vtws->delayed.next;
 163    next = curr->next;
 164    while (curr != &vtws->delayed) {
 165       res = LIST_ENTRY(struct virgl_hw_res, curr, head);
 166       if (!os_time_timeout(res->start, res->end, now))
 167          break;
 168
 169       LIST_DEL(&res->head);
 170       virgl_hw_res_destroy(vtws, res);
 171       curr = next;
 172       next = curr->next;
 173    }
 174 }
 175
 176 static void virgl_vtest_resource_reference(struct virgl_vtest_winsys *vtws,
 177                                            struct virgl_hw_res **dres,
 178                                            struct virgl_hw_res *sres)
 179 {
 180    struct virgl_hw_res *old = *dres;
 181    if (pipe_reference(&(*dres)->reference, &sres->reference)) {
 182       if (!can_cache_resource(old)) {
 183          virgl_hw_res_destroy(vtws, old);
 184       } else {
 185          pipe_mutex_lock(vtws->mutex);
 186          virgl_cache_list_check_free(vtws);
 187
 188          old->start = os_time_get();
 189          old->end = old->start + vtws->usecs;
 190          LIST_ADDTAIL(&old->head, &vtws->delayed);
 191          vtws->num_delayed++;
 192          pipe_mutex_unlock(vtws->mutex);
 193       }
 194    }
 195    *dres = sres;
 196 }
 197
 198 static struct virgl_hw_res *virgl_vtest_winsys_resource_create(
 199    struct virgl_winsys *vws,
 200    enum pipe_texture_target target,
 201    uint32_t format,
 202    uint32_t bind,
 203    uint32_t width,
 204    uint32_t height,
 205    uint32_t depth,
 206    uint32_t array_size,
 207    uint32_t last_level,
 208    uint32_t nr_samples,
 209    uint32_t size)
 210 {
 211    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 212    struct virgl_hw_res *res;
 213    static int handle = 1;
 214
 215    res = CALLOC_STRUCT(virgl_hw_res);
 216    if (!res)
 217       return NULL;
 218
 219    if (bind & (VIRGL_BIND_DISPLAY_TARGET | VIRGL_BIND_SCANOUT)) {
 220       res->dt = vtws->sws->displaytarget_create(vtws->sws,
 221                                                 bind,
 222                                                 format,
 223                                                 width,
 224                                                 height,
 225                                                 64,
 226                                                 &res->stride);
 227
 228    } else {
 229       res->ptr = align_malloc(size, 64);
 230       if (!res->ptr) {
 231          FREE(res);
 232          return NULL;
 233       }
 234    }
 235
 236    res->bind = bind;
 237    res->format = format;
 238    res->height = height;
 239    res->width = width;
 240    virgl_vtest_send_resource_create(vtws, handle, target, format, bind, width,
 241                                     height, depth, array_size, last_level,
 242                                     nr_samples);
 243
 244    res->res_handle = handle++;
 245    pipe_reference_init(&res->reference, 1);
 246    return res;
 247 }
 248
 249 static void virgl_vtest_winsys_resource_unref(struct virgl_winsys *vws,
 250                                               struct virgl_hw_res *hres)
 251 {
 252    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 253    virgl_vtest_resource_reference(vtws, &hres, NULL);
 254 }
 255
 256 static void *virgl_vtest_resource_map(struct virgl_winsys *vws, struct virgl_hw_res *res)
 257 {
 258    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 259
 260    if (res->dt) {
 261       return vtws->sws->displaytarget_map(vtws->sws, res->dt, 0);
 262    } else {
 263       res->mapped = res->ptr;
 264       return res->mapped;
 265    }
 266 }
 267
 268 static void virgl_vtest_resource_unmap(struct virgl_winsys *vws, struct virgl_hw_res *res)
 269 {
 270    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 271    if (res->mapped)
 272       res->mapped = NULL;
 273
 274    if (res->dt)
 275       vtws->sws->displaytarget_unmap(vtws->sws, res->dt);
 276 }
 277
 278 static void virgl_vtest_resource_wait(struct virgl_winsys *vws, struct virgl_hw_res *res)
 279 {
 280    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 281
 282    virgl_vtest_busy_wait(vtws, res->res_handle, VCMD_BUSY_WAIT_FLAG_WAIT);
 283 }
 284
 285 static inline int virgl_is_res_compat(struct virgl_vtest_winsys *vtws,
 286                                       struct virgl_hw_res *res,
 287                                       uint32_t size, uint32_t bind, uint32_t format)
 288 {
 289    if (res->bind != bind)
 290       return 0;
 291    if (res->format != format)
 292       return 0;
 293    if (res->size < size)
 294       return 0;
 295    if (res->size > size * 2)
 296       return 0;
 297
 298    if (virgl_vtest_resource_is_busy(vtws, res)) {
 299       return -1;
 300    }
 301
 302    return 1;
 303 }
 304
 305 static struct virgl_hw_res *virgl_vtest_winsys_resource_cache_create(struct virgl_winsys *vws,
 306                                                enum pipe_texture_target target,
 307                                                uint32_t format,
 308                                                uint32_t bind,
 309                                                uint32_t width,
 310                                                uint32_t height,
 311                                                uint32_t depth,
 312                                                uint32_t array_size,
 313                                                uint32_t last_level,
 314                                                uint32_t nr_samples,
 315                                                uint32_t size)
 316 {
 317    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 318    struct virgl_hw_res *res, *curr_res;
 319    struct list_head *curr, *next;
 320    int64_t now;
 321    int ret;
 322
 323    /* only store binds for vertex/index/const buffers */
 324    if (bind != VIRGL_BIND_CONSTANT_BUFFER && bind != VIRGL_BIND_INDEX_BUFFER &&
 325        bind != VIRGL_BIND_VERTEX_BUFFER && bind != VIRGL_BIND_CUSTOM)
 326       goto alloc;
 327
 328    pipe_mutex_lock(vtws->mutex);
 329
 330    res = NULL;
 331    curr = vtws->delayed.next;
 332    next = curr->next;
 333
 334    now = os_time_get();
 335    while (curr != &vtws->delayed) {
 336       curr_res = LIST_ENTRY(struct virgl_hw_res, curr, head);
 337
 338       if (!res && (ret = virgl_is_res_compat(vtws, curr_res, size, bind, format) > 0))
 339          res = curr_res;
 340       else if (os_time_timeout(curr_res->start, curr_res->end, now)) {
 341          LIST_DEL(&curr_res->head);
 342          virgl_hw_res_destroy(vtws, curr_res);
 343       } else
 344          break;
 345
 346       if (ret == -1)
 347          break;
 348
 349       curr = next;
 350       next = curr->next;
 351    }
 352
 353    if (!res && ret != -1) {
 354       while (curr != &vtws->delayed) {
 355          curr_res = LIST_ENTRY(struct virgl_hw_res, curr, head);
 356          ret = virgl_is_res_compat(vtws, curr_res, size, bind, format);
 357          if (ret > 0) {
 358             res = curr_res;
 359             break;
 360          }
 361          if (ret == -1)
 362             break;
 363          curr = next;
 364          next = curr->next;
 365       }
 366    }
 367
 368    if (res) {
 369       LIST_DEL(&res->head);
 370       --vtws->num_delayed;
 371       pipe_mutex_unlock(vtws->mutex);
 372       pipe_reference_init(&res->reference, 1);
 373       return res;
 374    }
 375
 376    pipe_mutex_unlock(vtws->mutex);
 377
 378 alloc:
 379    res = virgl_vtest_winsys_resource_create(vws, target, format, bind,
 380                                            width, height, depth, array_size,
 381                                            last_level, nr_samples, size);
 382    if (bind == VIRGL_BIND_CONSTANT_BUFFER || bind == VIRGL_BIND_INDEX_BUFFER ||
 383        bind == VIRGL_BIND_VERTEX_BUFFER)
 384       res->cacheable = TRUE;
 385    return res;
 386 }
 387
 388 static struct virgl_cmd_buf *virgl_vtest_cmd_buf_create(struct virgl_winsys *vws)
 389 {
 390    struct virgl_vtest_cmd_buf *cbuf;
 391
 392    cbuf = CALLOC_STRUCT(virgl_vtest_cmd_buf);
 393    if (!cbuf)
 394       return NULL;
 395
 396    cbuf->nres = 512;
 397    cbuf->res_bo = (struct virgl_hw_res **)
 398       CALLOC(cbuf->nres, sizeof(struct virgl_hw_buf*));
 399    if (!cbuf->res_bo) {
 400       FREE(cbuf);
 401       return NULL;
 402    }
 403    cbuf->ws = vws;
 404    cbuf->base.buf = cbuf->buf;
 405    return &cbuf->base;
 406 }
 407
 408 static void virgl_vtest_cmd_buf_destroy(struct virgl_cmd_buf *_cbuf)
 409 {
 410    struct virgl_vtest_cmd_buf *cbuf = virgl_vtest_cmd_buf(_cbuf);
 411
 412    FREE(cbuf->res_bo);
 413    FREE(cbuf);
 414 }
 415
 416 static boolean virgl_vtest_lookup_res(struct virgl_vtest_cmd_buf *cbuf,
 417                                     struct virgl_hw_res *res)
 418 {
 419    unsigned hash = res->res_handle & (sizeof(cbuf->is_handle_added)-1);
 420    int i;
 421
 422    if (cbuf->is_handle_added[hash]) {
 423       i = cbuf->reloc_indices_hashlist[hash];
 424       if (cbuf->res_bo[i] == res)
 425          return true;
 426
 427       for (i = 0; i < cbuf->cres; i++) {
 428          if (cbuf->res_bo[i] == res) {
 429             cbuf->reloc_indices_hashlist[hash] = i;
 430             return true;
 431          }
 432       }
 433    }
 434    return false;
 435 }
 436
 437 static void virgl_vtest_release_all_res(struct virgl_vtest_winsys *vtws,
 438                                         struct virgl_vtest_cmd_buf *cbuf)
 439 {
 440    int i;
 441
 442    for (i = 0; i < cbuf->cres; i++) {
 443       p_atomic_dec(&cbuf->res_bo[i]->num_cs_references);
 444       virgl_vtest_resource_reference(vtws, &cbuf->res_bo[i], NULL);
 445    }
 446    cbuf->cres = 0;
 447 }
 448
 449 static void virgl_vtest_add_res(struct virgl_vtest_winsys *vtws,
 450                             struct virgl_vtest_cmd_buf *cbuf, struct virgl_hw_res *res)
 451 {
 452    unsigned hash = res->res_handle & (sizeof(cbuf->is_handle_added)-1);
 453
 454    if (cbuf->cres > cbuf->nres) {
 455       fprintf(stderr,"failure to add relocation\n");
 456       return;
 457    }
 458
 459    cbuf->res_bo[cbuf->cres] = NULL;
 460    virgl_vtest_resource_reference(vtws, &cbuf->res_bo[cbuf->cres], res);
 461    cbuf->is_handle_added[hash] = TRUE;
 462
 463    cbuf->reloc_indices_hashlist[hash] = cbuf->cres;
 464    p_atomic_inc(&res->num_cs_references);
 465    cbuf->cres++;
 466 }
 467
 468 static int virgl_vtest_winsys_submit_cmd(struct virgl_winsys *vws, struct virgl_cmd_buf *_cbuf)
 469 {
 470    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 471    struct virgl_vtest_cmd_buf *cbuf = virgl_vtest_cmd_buf(_cbuf);
 472    int ret;
 473
 474    if (cbuf->base.cdw == 0)
 475       return 0;
 476
 477    ret = virgl_vtest_submit_cmd(vtws, cbuf);
 478
 479    virgl_vtest_release_all_res(vtws, cbuf);
 480    memset(cbuf->is_handle_added, 0, sizeof(cbuf->is_handle_added));
 481    cbuf->base.cdw = 0;
 482    return ret;
 483 }
 484
 485 static void virgl_vtest_emit_res(struct virgl_winsys *vws, struct virgl_cmd_buf *_cbuf, struct virgl_hw_res *res, boolean write_buf)
 486 {
 487    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 488    struct virgl_vtest_cmd_buf *cbuf = virgl_vtest_cmd_buf(_cbuf);
 489    boolean already_in_list = virgl_vtest_lookup_res(cbuf, res);
 490
 491    if (write_buf)
 492       cbuf->base.buf[cbuf->base.cdw++] = res->res_handle;
 493    if (!already_in_list)
 494       virgl_vtest_add_res(vtws, cbuf, res);
 495 }
 496
 497 static boolean virgl_vtest_res_is_ref(struct virgl_winsys *vws,
 498                                       struct virgl_cmd_buf *_cbuf,
 499                                       struct virgl_hw_res *res)
 500 {
 501    if (!res->num_cs_references)
 502       return FALSE;
 503
 504    return TRUE;
 505 }
 506
 507 static int virgl_vtest_get_caps(struct virgl_winsys *vws, struct virgl_drm_caps *caps)
 508 {
 509    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 510    return virgl_vtest_send_get_caps(vtws, caps);
 511 }
 512
 513 static struct pipe_fence_handle *
 514 virgl_cs_create_fence(struct virgl_winsys *vws)
 515 {
 516    struct virgl_hw_res *res;
 517
 518    res = virgl_vtest_winsys_resource_cache_create(vws,
 519                                                 PIPE_BUFFER,
 520                                                 PIPE_FORMAT_R8_UNORM,
 521                                                 PIPE_BIND_CUSTOM,
 522                                                 8, 1, 1, 0, 0, 0, 8);
 523
 524    return (struct pipe_fence_handle *)res;
 525 }
 526
 527 static bool virgl_fence_wait(struct virgl_winsys *vws,
 528                              struct pipe_fence_handle *fence,
 529                              uint64_t timeout)
 530 {
 531    struct virgl_vtest_winsys *vdws = virgl_vtest_winsys(vws);
 532    struct virgl_hw_res *res = virgl_hw_res(fence);
 533
 534    if (timeout == 0)
 535       return virgl_vtest_resource_is_busy(vdws, res);
 536
 537    if (timeout != PIPE_TIMEOUT_INFINITE) {
 538       int64_t start_time = os_time_get();
 539       timeout /= 1000;
 540       while (virgl_vtest_resource_is_busy(vdws, res)) {
 541          if (os_time_get() - start_time >= timeout)
 542             return FALSE;
 543          os_time_sleep(10);
 544       }
 545       return TRUE;
 546    }
 547    virgl_vtest_resource_wait(vws, res);
 548    return TRUE;
 549 }
 550
 551 static void virgl_fence_reference(struct virgl_winsys *vws,
 552                                   struct pipe_fence_handle **dst,
 553                                   struct pipe_fence_handle *src)
 554 {
 555    struct virgl_vtest_winsys *vdws = virgl_vtest_winsys(vws);
 556    virgl_vtest_resource_reference(vdws, (struct virgl_hw_res **)dst,
 557                                   virgl_hw_res(src));
 558 }
 559
 560 static void virgl_vtest_flush_frontbuffer(struct virgl_winsys *vws,
 561                                           struct virgl_hw_res *res,
 562                                           unsigned level, unsigned layer,
 563                                           void *winsys_drawable_handle,
 564                                           struct pipe_box *sub_box)
 565 {
 566    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 567    struct pipe_box box;
 568    void *map;
 569    uint32_t size;
 570    uint32_t offset = 0, valid_stride;
 571    if (!res->dt)
 572       return;
 573
 574    memset(&box, 0, sizeof(box));
 575
 576    if (sub_box) {
 577       box = *sub_box;
 578       offset = (res->stride * (box.y / util_format_get_blockheight(res->format))) + (box.x / util_format_get_blockwidth(res->format)) * util_format_get_blocksize(res->format);
 579    } else {
 580       box.z = layer;
 581       box.width = res->width;
 582       box.height = res->height;
 583       box.depth = 1;
 584    }
 585
 586    size = vtest_get_transfer_size(res, &box, res->stride, 0, level, &valid_stride);
 587
 588    virgl_vtest_busy_wait(vtws, res->res_handle, VCMD_BUSY_WAIT_FLAG_WAIT);
 589    map = vtws->sws->displaytarget_map(vtws->sws, res->dt, 0);
 590
 591    /* execute a transfer */
 592    virgl_vtest_send_transfer_cmd(vtws, VCMD_TRANSFER_GET, res->res_handle,
 593                                  level, res->stride, 0, &box, size);
 594    virgl_vtest_recv_transfer_get_data(vtws, map + offset, size, valid_stride, &box, res->format);
 595    vtws->sws->displaytarget_unmap(vtws->sws, res->dt);
 596
 597    vtws->sws->displaytarget_display(vtws->sws, res->dt, winsys_drawable_handle, sub_box);
 598 }
 599
 600 static void
 601 virgl_vtest_winsys_destroy(struct virgl_winsys *vws)
 602 {
 603    struct virgl_vtest_winsys *vtws = virgl_vtest_winsys(vws);
 604
 605    virgl_cache_flush(vtws);
 606
 607    pipe_mutex_destroy(vtws->mutex);
 608    FREE(vtws);
 609 }
 610
 611 struct virgl_winsys *
 612 virgl_vtest_winsys_wrap(struct sw_winsys *sws)
 613 {
 614    struct virgl_vtest_winsys *vtws;
 615
 616    vtws = CALLOC_STRUCT(virgl_vtest_winsys);
 617    if (!vtws)
 618       return NULL;
 619
 620    virgl_vtest_connect(vtws);
 621    vtws->sws = sws;
 622
 623    vtws->usecs = 1000000;
 624    LIST_INITHEAD(&vtws->delayed);
 625    pipe_mutex_init(vtws->mutex);
 626
 627    vtws->base.destroy = virgl_vtest_winsys_destroy;
 628
 629    vtws->base.transfer_put = virgl_vtest_transfer_put;
 630    vtws->base.transfer_get = virgl_vtest_transfer_get;
 631
 632    vtws->base.resource_create = virgl_vtest_winsys_resource_cache_create;
 633    vtws->base.resource_unref = virgl_vtest_winsys_resource_unref;
 634    vtws->base.resource_map = virgl_vtest_resource_map;
 635    vtws->base.resource_wait = virgl_vtest_resource_wait;
 636    vtws->base.cmd_buf_create = virgl_vtest_cmd_buf_create;
 637    vtws->base.cmd_buf_destroy = virgl_vtest_cmd_buf_destroy;
 638    vtws->base.submit_cmd = virgl_vtest_winsys_submit_cmd;
 639
 640    vtws->base.emit_res = virgl_vtest_emit_res;
 641    vtws->base.res_is_referenced = virgl_vtest_res_is_ref;
 642    vtws->base.get_caps = virgl_vtest_get_caps;
 643
 644    vtws->base.cs_create_fence = virgl_cs_create_fence;
 645    vtws->base.fence_wait = virgl_fence_wait;
 646    vtws->base.fence_reference = virgl_fence_reference;
 647
 648    vtws->base.flush_frontbuffer = virgl_vtest_flush_frontbuffer;
 649
 650    return &vtws->base;
 651 }