drivers/gpu/drm/qxl/qxl_display.c

   1 /*
   2  * Copyright 2013 Red Hat Inc.
   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  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Dave Airlie
  23  *          Alon Levy
  24  */
  25
  26 #include <linux/crc32.h>
  27 #include <drm/drm_crtc_helper.h>
  28 #include <drm/drm_plane_helper.h>
  29 #include <drm/drm_atomic_helper.h>
  30 #include <drm/drm_atomic.h>
  31
  32 #include "qxl_drv.h"
  33 #include "qxl_object.h"
  34
  35 static bool qxl_head_enabled(struct qxl_head *head)
  36 {
  37         return head->width && head->height;
  38 }
  39
  40 static void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  41 {
  42         if (qdev->client_monitors_config &&
  43             count > qdev->client_monitors_config->count) {
  44                 kfree(qdev->client_monitors_config);
  45                 qdev->client_monitors_config = NULL;
  46         }
  47         if (!qdev->client_monitors_config) {
  48                 qdev->client_monitors_config = kzalloc(
  49                                 sizeof(struct qxl_monitors_config) +
  50                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  51                 if (!qdev->client_monitors_config) {
  52                         qxl_io_log(qdev,
  53                                    "%s: allocation failure for %u heads\n",
  54                                    __func__, count);
  55                         return;
  56                 }
  57         }
  58         qdev->client_monitors_config->count = count;
  59 }
  60
  61 enum {
  62         MONITORS_CONFIG_MODIFIED,
  63         MONITORS_CONFIG_UNCHANGED,
  64         MONITORS_CONFIG_BAD_CRC,
  65 };
  66
  67 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  68 {
  69         int i;
  70         int num_monitors;
  71         uint32_t crc;
  72         int status = MONITORS_CONFIG_UNCHANGED;
  73
  74         num_monitors = qdev->rom->client_monitors_config.count;
  75         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  76                   sizeof(qdev->rom->client_monitors_config));
  77         if (crc != qdev->rom->client_monitors_config_crc) {
  78                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
  79                            sizeof(qdev->rom->client_monitors_config),
  80                            qdev->rom->client_monitors_config_crc);
  81                 return MONITORS_CONFIG_BAD_CRC;
  82         }
  83         if (!num_monitors) {
  84                 DRM_DEBUG_KMS("no client monitors configured\n");
  85                 return status;
  86         }
  87         if (num_monitors > qdev->monitors_config->max_allowed) {
  88                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  89                               qdev->monitors_config->max_allowed, num_monitors);
  90                 num_monitors = qdev->monitors_config->max_allowed;
  91         } else {
  92                 num_monitors = qdev->rom->client_monitors_config.count;
  93         }
  94         if (qdev->client_monitors_config
  95               && (num_monitors != qdev->client_monitors_config->count)) {
  96                 status = MONITORS_CONFIG_MODIFIED;
  97         }
  98         qxl_alloc_client_monitors_config(qdev, num_monitors);
  99         /* we copy max from the client but it isn't used */
 100         qdev->client_monitors_config->max_allowed =
 101                                 qdev->monitors_config->max_allowed;
 102         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
 103                 struct qxl_urect *c_rect =
 104                         &qdev->rom->client_monitors_config.heads[i];
 105                 struct qxl_head *client_head =
 106                         &qdev->client_monitors_config->heads[i];
 107                 if (client_head->x != c_rect->left) {
 108                         client_head->x = c_rect->left;
 109                         status = MONITORS_CONFIG_MODIFIED;
 110                 }
 111                 if (client_head->y != c_rect->top) {
 112                         client_head->y = c_rect->top;
 113                         status = MONITORS_CONFIG_MODIFIED;
 114                 }
 115                 if (client_head->width != c_rect->right - c_rect->left) {
 116                         client_head->width = c_rect->right - c_rect->left;
 117                         status = MONITORS_CONFIG_MODIFIED;
 118                 }
 119                 if (client_head->height != c_rect->bottom - c_rect->top) {
 120                         client_head->height = c_rect->bottom - c_rect->top;
 121                         status = MONITORS_CONFIG_MODIFIED;
 122                 }
 123                 if (client_head->surface_id != 0) {
 124                         client_head->surface_id = 0;
 125                         status = MONITORS_CONFIG_MODIFIED;
 126                 }
 127                 if (client_head->id != i) {
 128                         client_head->id = i;
 129                         status = MONITORS_CONFIG_MODIFIED;
 130                 }
 131                 if (client_head->flags != 0) {
 132                         client_head->flags = 0;
 133                         status = MONITORS_CONFIG_MODIFIED;
 134                 }
 135                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 136                           client_head->x, client_head->y);
 137         }
 138
 139         return status;
 140 }
 141
 142 static void qxl_update_offset_props(struct qxl_device *qdev)
 143 {
 144         struct drm_device *dev = &qdev->ddev;
 145         struct drm_connector *connector;
 146         struct qxl_output *output;
 147         struct qxl_head *head;
 148
 149         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 150                 output = drm_connector_to_qxl_output(connector);
 151
 152                 head = &qdev->client_monitors_config->heads[output->index];
 153
 154                 drm_object_property_set_value(&connector->base,
 155                         dev->mode_config.suggested_x_property, head->x);
 156                 drm_object_property_set_value(&connector->base,
 157                         dev->mode_config.suggested_y_property, head->y);
 158         }
 159 }
 160
 161 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 162 {
 163         struct drm_device *dev = &qdev->ddev;
 164         int status, retries;
 165
 166         for (retries = 0; retries < 10; retries++) {
 167                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 168                 if (status != MONITORS_CONFIG_BAD_CRC)
 169                         break;
 170                 udelay(5);
 171         }
 172         if (status == MONITORS_CONFIG_BAD_CRC) {
 173                 qxl_io_log(qdev, "config: bad crc\n");
 174                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 175                 return;
 176         }
 177         if (status == MONITORS_CONFIG_UNCHANGED) {
 178                 qxl_io_log(qdev, "config: unchanged\n");
 179                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
 180                 return;
 181         }
 182
 183         drm_modeset_lock_all(dev);
 184         qxl_update_offset_props(qdev);
 185         drm_modeset_unlock_all(dev);
 186         if (!drm_helper_hpd_irq_event(dev)) {
 187                 /* notify that the monitor configuration changed, to
 188                    adjust at the arbitrary resolution */
 189                 drm_kms_helper_hotplug_event(dev);
 190         }
 191 }
 192
 193 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 194                                          unsigned *pwidth,
 195                                          unsigned *pheight)
 196 {
 197         struct drm_device *dev = connector->dev;
 198         struct qxl_device *qdev = dev->dev_private;
 199         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 200         int h = output->index;
 201         struct drm_display_mode *mode = NULL;
 202         struct qxl_head *head;
 203
 204         if (!qdev->monitors_config)
 205                 return 0;
 206         if (h >= qdev->monitors_config->max_allowed)
 207                 return 0;
 208         if (!qdev->client_monitors_config)
 209                 return 0;
 210         if (h >= qdev->client_monitors_config->count)
 211                 return 0;
 212
 213         head = &qdev->client_monitors_config->heads[h];
 214         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
 215
 216         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 217                             false);
 218         mode->type |= DRM_MODE_TYPE_PREFERRED;
 219         mode->hdisplay = head->width;
 220         mode->vdisplay = head->height;
 221         drm_mode_set_name(mode);
 222         *pwidth = head->width;
 223         *pheight = head->height;
 224         drm_mode_probed_add(connector, mode);
 225         /* remember the last custom size for mode validation */
 226         qdev->monitors_config_width = mode->hdisplay;
 227         qdev->monitors_config_height = mode->vdisplay;
 228         return 1;
 229 }
 230
 231 static struct mode_size {
 232         int w;
 233         int h;
 234 } common_modes[] = {
 235         { 640,  480},
 236         { 720,  480},
 237         { 800,  600},
 238         { 848,  480},
 239         {1024,  768},
 240         {1152,  768},
 241         {1280,  720},
 242         {1280,  800},
 243         {1280,  854},
 244         {1280,  960},
 245         {1280, 1024},
 246         {1440,  900},
 247         {1400, 1050},
 248         {1680, 1050},
 249         {1600, 1200},
 250         {1920, 1080},
 251         {1920, 1200}
 252 };
 253
 254 static int qxl_add_common_modes(struct drm_connector *connector,
 255                                 unsigned pwidth,
 256                                 unsigned pheight)
 257 {
 258         struct drm_device *dev = connector->dev;
 259         struct drm_display_mode *mode = NULL;
 260         int i;
 261         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 262                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 263                                     60, false, false, false);
 264                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 265                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 266                 drm_mode_probed_add(connector, mode);
 267         }
 268         return i - 1;
 269 }
 270
 271 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 272                                   struct drm_crtc_state *old_crtc_state)
 273 {
 274         struct drm_device *dev = crtc->dev;
 275         struct drm_pending_vblank_event *event;
 276         unsigned long flags;
 277
 278         if (crtc->state && crtc->state->event) {
 279                 event = crtc->state->event;
 280                 crtc->state->event = NULL;
 281
 282                 spin_lock_irqsave(&dev->event_lock, flags);
 283                 drm_crtc_send_vblank_event(crtc, event);
 284                 spin_unlock_irqrestore(&dev->event_lock, flags);
 285         }
 286 }
 287
 288 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 289 {
 290         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 291
 292         qxl_bo_unref(&qxl_crtc->cursor_bo);
 293         drm_crtc_cleanup(crtc);
 294         kfree(qxl_crtc);
 295 }
 296
 297 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 298         .set_config = drm_atomic_helper_set_config,
 299         .destroy = qxl_crtc_destroy,
 300         .page_flip = drm_atomic_helper_page_flip,
 301         .reset = drm_atomic_helper_crtc_reset,
 302         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 303         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 304 };
 305
 306 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 307 {
 308         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 309         struct qxl_bo *bo = gem_to_qxl_bo(qxl_fb->obj);
 310
 311         WARN_ON(bo->shadow);
 312         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 313         drm_framebuffer_cleanup(fb);
 314         kfree(qxl_fb);
 315 }
 316
 317 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 318                                          struct drm_file *file_priv,
 319                                          unsigned flags, unsigned color,
 320                                          struct drm_clip_rect *clips,
 321                                          unsigned num_clips)
 322 {
 323         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 324         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 325         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 326         struct drm_clip_rect norect;
 327         struct qxl_bo *qobj;
 328         int inc = 1;
 329
 330         drm_modeset_lock_all(fb->dev);
 331
 332         qobj = gem_to_qxl_bo(qxl_fb->obj);
 333         /* if we aren't primary surface ignore this */
 334         if (!qobj->is_primary) {
 335                 drm_modeset_unlock_all(fb->dev);
 336                 return 0;
 337         }
 338
 339         if (!num_clips) {
 340                 num_clips = 1;
 341                 clips = &norect;
 342                 norect.x1 = norect.y1 = 0;
 343                 norect.x2 = fb->width;
 344                 norect.y2 = fb->height;
 345         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 346                 num_clips /= 2;
 347                 inc = 2; /* skip source rects */
 348         }
 349
 350         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 351                           clips, num_clips, inc);
 352
 353         drm_modeset_unlock_all(fb->dev);
 354
 355         return 0;
 356 }
 357
 358 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 359         .destroy = qxl_user_framebuffer_destroy,
 360         .dirty = qxl_framebuffer_surface_dirty,
 361 /*      TODO?
 362  *      .create_handle = qxl_user_framebuffer_create_handle, */
 363 };
 364
 365 int
 366 qxl_framebuffer_init(struct drm_device *dev,
 367                      struct qxl_framebuffer *qfb,
 368                      const struct drm_mode_fb_cmd2 *mode_cmd,
 369                      struct drm_gem_object *obj,
 370                      const struct drm_framebuffer_funcs *funcs)
 371 {
 372         int ret;
 373
 374         qfb->obj = obj;
 375         drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
 376         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 377         if (ret) {
 378                 qfb->obj = NULL;
 379                 return ret;
 380         }
 381         return 0;
 382 }
 383
 384 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 385                                   const struct drm_display_mode *mode,
 386                                   struct drm_display_mode *adjusted_mode)
 387 {
 388         struct drm_device *dev = crtc->dev;
 389         struct qxl_device *qdev = dev->dev_private;
 390
 391         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 392                    __func__,
 393                    mode->hdisplay, mode->vdisplay,
 394                    adjusted_mode->hdisplay,
 395                    adjusted_mode->vdisplay);
 396         return true;
 397 }
 398
 399 static void
 400 qxl_send_monitors_config(struct qxl_device *qdev)
 401 {
 402         int i;
 403
 404         BUG_ON(!qdev->ram_header->monitors_config);
 405
 406         if (qdev->monitors_config->count == 0) {
 407                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 408                 return;
 409         }
 410         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 411                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 412
 413                 if (head->y > 8192 || head->x > 8192 ||
 414                     head->width > 8192 || head->height > 8192) {
 415                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 416                                   i, head->width, head->height,
 417                                   head->x, head->y);
 418                         return;
 419                 }
 420         }
 421         qxl_io_monitors_config(qdev);
 422 }
 423
 424 static void qxl_monitors_config_set(struct qxl_device *qdev,
 425                                     int index,
 426                                     unsigned x, unsigned y,
 427                                     unsigned width, unsigned height,
 428                                     unsigned surf_id)
 429 {
 430         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 431         qdev->monitors_config->heads[index].x = x;
 432         qdev->monitors_config->heads[index].y = y;
 433         qdev->monitors_config->heads[index].width = width;
 434         qdev->monitors_config->heads[index].height = height;
 435         qdev->monitors_config->heads[index].surface_id = surf_id;
 436
 437 }
 438
 439 static void qxl_mode_set_nofb(struct drm_crtc *crtc)
 440 {
 441         struct qxl_device *qdev = crtc->dev->dev_private;
 442         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 443         struct drm_display_mode *mode = &crtc->mode;
 444
 445         DRM_DEBUG("Mode set (%d,%d)\n",
 446                   mode->hdisplay, mode->vdisplay);
 447
 448         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
 449                                 mode->hdisplay, mode->vdisplay, 0);
 450
 451 }
 452
 453 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
 454                                    struct drm_crtc_state *old_state)
 455 {
 456         DRM_DEBUG("\n");
 457 }
 458
 459 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
 460                                     struct drm_crtc_state *old_state)
 461 {
 462         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 463         struct qxl_device *qdev = crtc->dev->dev_private;
 464
 465         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 466
 467         qxl_send_monitors_config(qdev);
 468 }
 469
 470 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 471         .mode_fixup = qxl_crtc_mode_fixup,
 472         .mode_set_nofb = qxl_mode_set_nofb,
 473         .atomic_flush = qxl_crtc_atomic_flush,
 474         .atomic_enable = qxl_crtc_atomic_enable,
 475         .atomic_disable = qxl_crtc_atomic_disable,
 476 };
 477
 478 static int qxl_primary_atomic_check(struct drm_plane *plane,
 479                                     struct drm_plane_state *state)
 480 {
 481         struct qxl_device *qdev = plane->dev->dev_private;
 482         struct qxl_framebuffer *qfb;
 483         struct qxl_bo *bo;
 484
 485         if (!state->crtc || !state->fb)
 486                 return 0;
 487
 488         qfb = to_qxl_framebuffer(state->fb);
 489         bo = gem_to_qxl_bo(qfb->obj);
 490
 491         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 492                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 493                 return -EINVAL;
 494         }
 495
 496         return 0;
 497 }
 498
 499 static int qxl_primary_apply_cursor(struct drm_plane *plane)
 500 {
 501         struct drm_device *dev = plane->dev;
 502         struct qxl_device *qdev = dev->dev_private;
 503         struct drm_framebuffer *fb = plane->state->fb;
 504         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 505         struct qxl_cursor_cmd *cmd;
 506         struct qxl_release *release;
 507         int ret = 0;
 508
 509         if (!qcrtc->cursor_bo)
 510                 return 0;
 511
 512         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 513                                          QXL_RELEASE_CURSOR_CMD,
 514                                          &release, NULL);
 515         if (ret)
 516                 return ret;
 517
 518         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 519         if (ret)
 520                 goto out_free_release;
 521
 522         ret = qxl_release_reserve_list(release, false);
 523         if (ret)
 524                 goto out_free_release;
 525
 526         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 527         cmd->type = QXL_CURSOR_SET;
 528         cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
 529         cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
 530
 531         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 532
 533         cmd->u.set.visible = 1;
 534         qxl_release_unmap(qdev, release, &cmd->release_info);
 535
 536         qxl_release_fence_buffer_objects(release);
 537         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 538
 539         return ret;
 540
 541 out_free_release:
 542         qxl_release_free(qdev, release);
 543         return ret;
 544 }
 545
 546 static void qxl_primary_atomic_update(struct drm_plane *plane,
 547                                       struct drm_plane_state *old_state)
 548 {
 549         struct qxl_device *qdev = plane->dev->dev_private;
 550         struct qxl_framebuffer *qfb =
 551                 to_qxl_framebuffer(plane->state->fb);
 552         struct qxl_framebuffer *qfb_old;
 553         struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 554         struct qxl_bo *bo_old;
 555         struct drm_clip_rect norect = {
 556             .x1 = 0,
 557             .y1 = 0,
 558             .x2 = qfb->base.width,
 559             .y2 = qfb->base.height
 560         };
 561         int ret;
 562         bool same_shadow = false;
 563
 564         if (old_state->fb) {
 565                 qfb_old = to_qxl_framebuffer(old_state->fb);
 566                 bo_old = gem_to_qxl_bo(qfb_old->obj);
 567         } else {
 568                 bo_old = NULL;
 569         }
 570
 571         if (bo == bo_old)
 572                 return;
 573
 574         if (bo_old && bo_old->shadow && bo->shadow &&
 575             bo_old->shadow == bo->shadow) {
 576                 same_shadow = true;
 577         }
 578
 579         if (bo_old && bo_old->is_primary) {
 580                 if (!same_shadow)
 581                         qxl_io_destroy_primary(qdev);
 582                 bo_old->is_primary = false;
 583
 584                 ret = qxl_primary_apply_cursor(plane);
 585                 if (ret)
 586                         DRM_ERROR(
 587                         "could not set cursor after creating primary");
 588         }
 589
 590         if (!bo->is_primary) {
 591                 if (!same_shadow)
 592                         qxl_io_create_primary(qdev, 0, bo);
 593                 bo->is_primary = true;
 594         }
 595
 596         qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
 597 }
 598
 599 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 600                                        struct drm_plane_state *old_state)
 601 {
 602         struct qxl_device *qdev = plane->dev->dev_private;
 603
 604         if (old_state->fb) {
 605                 struct qxl_framebuffer *qfb =
 606                         to_qxl_framebuffer(old_state->fb);
 607                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 608
 609                 if (bo->is_primary) {
 610                         qxl_io_destroy_primary(qdev);
 611                         bo->is_primary = false;
 612                 }
 613         }
 614 }
 615
 616 static int qxl_plane_atomic_check(struct drm_plane *plane,
 617                                   struct drm_plane_state *state)
 618 {
 619         return 0;
 620 }
 621
 622 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 623                                      struct drm_plane_state *old_state)
 624 {
 625         struct drm_device *dev = plane->dev;
 626         struct qxl_device *qdev = dev->dev_private;
 627         struct drm_framebuffer *fb = plane->state->fb;
 628         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 629         struct qxl_release *release;
 630         struct qxl_cursor_cmd *cmd;
 631         struct qxl_cursor *cursor;
 632         struct drm_gem_object *obj;
 633         struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
 634         int ret;
 635         void *user_ptr;
 636         int size = 64*64*4;
 637
 638         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 639                                          QXL_RELEASE_CURSOR_CMD,
 640                                          &release, NULL);
 641         if (ret)
 642                 return;
 643
 644         if (fb != old_state->fb) {
 645                 obj = to_qxl_framebuffer(fb)->obj;
 646                 user_bo = gem_to_qxl_bo(obj);
 647
 648                 /* pinning is done in the prepare/cleanup framevbuffer */
 649                 ret = qxl_bo_kmap(user_bo, &user_ptr);
 650                 if (ret)
 651                         goto out_free_release;
 652
 653                 ret = qxl_alloc_bo_reserved(qdev, release,
 654                                             sizeof(struct qxl_cursor) + size,
 655                                             &cursor_bo);
 656                 if (ret)
 657                         goto out_kunmap;
 658
 659                 ret = qxl_release_reserve_list(release, true);
 660                 if (ret)
 661                         goto out_free_bo;
 662
 663                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 664                 if (ret)
 665                         goto out_backoff;
 666
 667                 cursor->header.unique = 0;
 668                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 669                 cursor->header.width = 64;
 670                 cursor->header.height = 64;
 671                 cursor->header.hot_spot_x = fb->hot_x;
 672                 cursor->header.hot_spot_y = fb->hot_y;
 673                 cursor->data_size = size;
 674                 cursor->chunk.next_chunk = 0;
 675                 cursor->chunk.prev_chunk = 0;
 676                 cursor->chunk.data_size = size;
 677                 memcpy(cursor->chunk.data, user_ptr, size);
 678                 qxl_bo_kunmap(cursor_bo);
 679                 qxl_bo_kunmap(user_bo);
 680
 681                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 682                 cmd->u.set.visible = 1;
 683                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
 684                                                            cursor_bo, 0);
 685                 cmd->type = QXL_CURSOR_SET;
 686
 687                 old_cursor_bo = qcrtc->cursor_bo;
 688                 qcrtc->cursor_bo = cursor_bo;
 689                 cursor_bo = NULL;
 690         } else {
 691
 692                 ret = qxl_release_reserve_list(release, true);
 693                 if (ret)
 694                         goto out_free_release;
 695
 696                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 697                 cmd->type = QXL_CURSOR_MOVE;
 698         }
 699
 700         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
 701         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
 702
 703         qxl_release_unmap(qdev, release, &cmd->release_info);
 704         qxl_release_fence_buffer_objects(release);
 705         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 706
 707         if (old_cursor_bo)
 708                 qxl_bo_unref(&old_cursor_bo);
 709
 710         qxl_bo_unref(&cursor_bo);
 711
 712         return;
 713
 714 out_backoff:
 715         qxl_release_backoff_reserve_list(release);
 716 out_free_bo:
 717         qxl_bo_unref(&cursor_bo);
 718 out_kunmap:
 719         qxl_bo_kunmap(user_bo);
 720 out_free_release:
 721         qxl_release_free(qdev, release);
 722         return;
 723
 724 }
 725
 726 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
 727                                       struct drm_plane_state *old_state)
 728 {
 729         struct qxl_device *qdev = plane->dev->dev_private;
 730         struct qxl_release *release;
 731         struct qxl_cursor_cmd *cmd;
 732         int ret;
 733
 734         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 735                                          QXL_RELEASE_CURSOR_CMD,
 736                                          &release, NULL);
 737         if (ret)
 738                 return;
 739
 740         ret = qxl_release_reserve_list(release, true);
 741         if (ret) {
 742                 qxl_release_free(qdev, release);
 743                 return;
 744         }
 745
 746         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 747         cmd->type = QXL_CURSOR_HIDE;
 748         qxl_release_unmap(qdev, release, &cmd->release_info);
 749
 750         qxl_release_fence_buffer_objects(release);
 751         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 752 }
 753
 754 static int qxl_plane_prepare_fb(struct drm_plane *plane,
 755                                 struct drm_plane_state *new_state)
 756 {
 757         struct qxl_device *qdev = plane->dev->dev_private;
 758         struct drm_gem_object *obj;
 759         struct qxl_bo *user_bo, *old_bo = NULL;
 760         int ret;
 761
 762         if (!new_state->fb)
 763                 return 0;
 764
 765         obj = to_qxl_framebuffer(new_state->fb)->obj;
 766         user_bo = gem_to_qxl_bo(obj);
 767
 768         if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
 769             user_bo->is_dumb && !user_bo->shadow) {
 770                 if (plane->state->fb) {
 771                         obj = to_qxl_framebuffer(plane->state->fb)->obj;
 772                         old_bo = gem_to_qxl_bo(obj);
 773                 }
 774                 if (old_bo && old_bo->shadow &&
 775                     user_bo->gem_base.size == old_bo->gem_base.size &&
 776                     plane->state->crtc     == new_state->crtc &&
 777                     plane->state->crtc_w   == new_state->crtc_w &&
 778                     plane->state->crtc_h   == new_state->crtc_h &&
 779                     plane->state->src_x    == new_state->src_x &&
 780                     plane->state->src_y    == new_state->src_y &&
 781                     plane->state->src_w    == new_state->src_w &&
 782                     plane->state->src_h    == new_state->src_h &&
 783                     plane->state->rotation == new_state->rotation &&
 784                     plane->state->zpos     == new_state->zpos) {
 785                         drm_gem_object_get(&old_bo->shadow->gem_base);
 786                         user_bo->shadow = old_bo->shadow;
 787                 } else {
 788                         qxl_bo_create(qdev, user_bo->gem_base.size,
 789                                       true, true, QXL_GEM_DOMAIN_VRAM, NULL,
 790                                       &user_bo->shadow);
 791                 }
 792         }
 793
 794         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 795         if (ret)
 796                 return ret;
 797
 798         return 0;
 799 }
 800
 801 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 802                                  struct drm_plane_state *old_state)
 803 {
 804         struct drm_gem_object *obj;
 805         struct qxl_bo *user_bo;
 806
 807         if (!old_state->fb) {
 808                 /*
 809                  * we never executed prepare_fb, so there's nothing to
 810                  * unpin.
 811                  */
 812                 return;
 813         }
 814
 815         obj = to_qxl_framebuffer(old_state->fb)->obj;
 816         user_bo = gem_to_qxl_bo(obj);
 817         qxl_bo_unpin(user_bo);
 818
 819         if (user_bo->shadow && !user_bo->is_primary) {
 820                 drm_gem_object_put_unlocked(&user_bo->shadow->gem_base);
 821                 user_bo->shadow = NULL;
 822         }
 823 }
 824
 825 static const uint32_t qxl_cursor_plane_formats[] = {
 826         DRM_FORMAT_ARGB8888,
 827 };
 828
 829 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 830         .atomic_check = qxl_plane_atomic_check,
 831         .atomic_update = qxl_cursor_atomic_update,
 832         .atomic_disable = qxl_cursor_atomic_disable,
 833         .prepare_fb = qxl_plane_prepare_fb,
 834         .cleanup_fb = qxl_plane_cleanup_fb,
 835 };
 836
 837 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 838         .update_plane   = drm_atomic_helper_update_plane,
 839         .disable_plane  = drm_atomic_helper_disable_plane,
 840         .destroy        = drm_primary_helper_destroy,
 841         .reset          = drm_atomic_helper_plane_reset,
 842         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 843         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 844 };
 845
 846 static const uint32_t qxl_primary_plane_formats[] = {
 847         DRM_FORMAT_XRGB8888,
 848         DRM_FORMAT_ARGB8888,
 849 };
 850
 851 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 852         .atomic_check = qxl_primary_atomic_check,
 853         .atomic_update = qxl_primary_atomic_update,
 854         .atomic_disable = qxl_primary_atomic_disable,
 855         .prepare_fb = qxl_plane_prepare_fb,
 856         .cleanup_fb = qxl_plane_cleanup_fb,
 857 };
 858
 859 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 860         .update_plane   = drm_atomic_helper_update_plane,
 861         .disable_plane  = drm_atomic_helper_disable_plane,
 862         .destroy        = drm_primary_helper_destroy,
 863         .reset          = drm_atomic_helper_plane_reset,
 864         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 865         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 866 };
 867
 868 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 869                                           unsigned int possible_crtcs,
 870                                           enum drm_plane_type type)
 871 {
 872         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 873         struct drm_plane *plane;
 874         const struct drm_plane_funcs *funcs;
 875         const uint32_t *formats;
 876         int num_formats;
 877         int err;
 878
 879         if (type == DRM_PLANE_TYPE_PRIMARY) {
 880                 funcs = &qxl_primary_plane_funcs;
 881                 formats = qxl_primary_plane_formats;
 882                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 883                 helper_funcs = &primary_helper_funcs;
 884         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 885                 funcs = &qxl_cursor_plane_funcs;
 886                 formats = qxl_cursor_plane_formats;
 887                 helper_funcs = &qxl_cursor_helper_funcs;
 888                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 889         } else {
 890                 return ERR_PTR(-EINVAL);
 891         }
 892
 893         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 894         if (!plane)
 895                 return ERR_PTR(-ENOMEM);
 896
 897         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 898                                        funcs, formats, num_formats,
 899                                        NULL, type, NULL);
 900         if (err)
 901                 goto free_plane;
 902
 903         drm_plane_helper_add(plane, helper_funcs);
 904
 905         return plane;
 906
 907 free_plane:
 908         kfree(plane);
 909         return ERR_PTR(-EINVAL);
 910 }
 911
 912 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 913 {
 914         struct qxl_crtc *qxl_crtc;
 915         struct drm_plane *primary, *cursor;
 916         struct qxl_device *qdev = dev->dev_private;
 917         int r;
 918
 919         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 920         if (!qxl_crtc)
 921                 return -ENOMEM;
 922
 923         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 924         if (IS_ERR(primary)) {
 925                 r = -ENOMEM;
 926                 goto free_mem;
 927         }
 928
 929         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 930         if (IS_ERR(cursor)) {
 931                 r = -ENOMEM;
 932                 goto clean_primary;
 933         }
 934
 935         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 936                                       &qxl_crtc_funcs, NULL);
 937         if (r)
 938                 goto clean_cursor;
 939
 940         qxl_crtc->index = crtc_id;
 941         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 942         return 0;
 943
 944 clean_cursor:
 945         drm_plane_cleanup(cursor);
 946         kfree(cursor);
 947 clean_primary:
 948         drm_plane_cleanup(primary);
 949         kfree(primary);
 950 free_mem:
 951         kfree(qxl_crtc);
 952         return r;
 953 }
 954
 955 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 956 {
 957         DRM_DEBUG("\n");
 958 }
 959
 960 static void qxl_enc_prepare(struct drm_encoder *encoder)
 961 {
 962         DRM_DEBUG("\n");
 963 }
 964
 965 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 966                 struct drm_encoder *encoder)
 967 {
 968         int i;
 969         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 970         struct qxl_head *head;
 971         struct drm_display_mode *mode;
 972
 973         BUG_ON(!encoder);
 974         /* TODO: ugly, do better */
 975         i = output->index;
 976         if (!qdev->monitors_config ||
 977             qdev->monitors_config->max_allowed <= i) {
 978                 DRM_ERROR(
 979                 "head number too large or missing monitors config: %p, %d",
 980                 qdev->monitors_config,
 981                 qdev->monitors_config ?
 982                         qdev->monitors_config->max_allowed : -1);
 983                 return;
 984         }
 985         if (!encoder->crtc) {
 986                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 987                 return;
 988         }
 989         if (i != 0)
 990                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 991         head = &qdev->monitors_config->heads[i];
 992         head->id = i;
 993         if (encoder->crtc->enabled) {
 994                 mode = &encoder->crtc->mode;
 995                 head->width = mode->hdisplay;
 996                 head->height = mode->vdisplay;
 997                 head->x = encoder->crtc->x;
 998                 head->y = encoder->crtc->y;
 999                 if (qdev->monitors_config->count < i + 1)
1000                         qdev->monitors_config->count = i + 1;
1001         } else {
1002                 head->width = 0;
1003                 head->height = 0;
1004                 head->x = 0;
1005                 head->y = 0;
1006         }
1007         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
1008                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
1009         head->flags = 0;
1010         /* TODO - somewhere else to call this for multiple monitors
1011          * (config_commit?) */
1012         qxl_send_monitors_config(qdev);
1013 }
1014
1015 static void qxl_enc_commit(struct drm_encoder *encoder)
1016 {
1017         struct qxl_device *qdev = encoder->dev->dev_private;
1018
1019         qxl_write_monitors_config_for_encoder(qdev, encoder);
1020         DRM_DEBUG("\n");
1021 }
1022
1023 static void qxl_enc_mode_set(struct drm_encoder *encoder,
1024                                 struct drm_display_mode *mode,
1025                                 struct drm_display_mode *adjusted_mode)
1026 {
1027         DRM_DEBUG("\n");
1028 }
1029
1030 static int qxl_conn_get_modes(struct drm_connector *connector)
1031 {
1032         unsigned pwidth = 1024;
1033         unsigned pheight = 768;
1034         int ret = 0;
1035
1036         ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
1037         if (ret < 0)
1038                 return ret;
1039         ret += qxl_add_common_modes(connector, pwidth, pheight);
1040         return ret;
1041 }
1042
1043 static int qxl_conn_mode_valid(struct drm_connector *connector,
1044                                struct drm_display_mode *mode)
1045 {
1046         struct drm_device *ddev = connector->dev;
1047         struct qxl_device *qdev = ddev->dev_private;
1048         int i;
1049
1050         /* TODO: is this called for user defined modes? (xrandr --add-mode)
1051          * TODO: check that the mode fits in the framebuffer */
1052
1053         if(qdev->monitors_config_width == mode->hdisplay &&
1054            qdev->monitors_config_height == mode->vdisplay)
1055                 return MODE_OK;
1056
1057         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
1058                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
1059                         return MODE_OK;
1060         }
1061         return MODE_BAD;
1062 }
1063
1064 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1065 {
1066         struct qxl_output *qxl_output =
1067                 drm_connector_to_qxl_output(connector);
1068
1069         DRM_DEBUG("\n");
1070         return &qxl_output->enc;
1071 }
1072
1073
1074 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
1075         .dpms = qxl_enc_dpms,
1076         .prepare = qxl_enc_prepare,
1077         .mode_set = qxl_enc_mode_set,
1078         .commit = qxl_enc_commit,
1079 };
1080
1081 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1082         .get_modes = qxl_conn_get_modes,
1083         .mode_valid = qxl_conn_mode_valid,
1084         .best_encoder = qxl_best_encoder,
1085 };
1086
1087 static enum drm_connector_status qxl_conn_detect(
1088                         struct drm_connector *connector,
1089                         bool force)
1090 {
1091         struct qxl_output *output =
1092                 drm_connector_to_qxl_output(connector);
1093         struct drm_device *ddev = connector->dev;
1094         struct qxl_device *qdev = ddev->dev_private;
1095         bool connected = false;
1096
1097         /* The first monitor is always connected */
1098         if (!qdev->client_monitors_config) {
1099                 if (output->index == 0)
1100                         connected = true;
1101         } else
1102                 connected = qdev->client_monitors_config->count > output->index &&
1103                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1104
1105         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1106         if (!connected)
1107                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
1108
1109         return connected ? connector_status_connected
1110                          : connector_status_disconnected;
1111 }
1112
1113 static int qxl_conn_set_property(struct drm_connector *connector,
1114                                    struct drm_property *property,
1115                                    uint64_t value)
1116 {
1117         DRM_DEBUG("\n");
1118         return 0;
1119 }
1120
1121 static void qxl_conn_destroy(struct drm_connector *connector)
1122 {
1123         struct qxl_output *qxl_output =
1124                 drm_connector_to_qxl_output(connector);
1125
1126         drm_connector_unregister(connector);
1127         drm_connector_cleanup(connector);
1128         kfree(qxl_output);
1129 }
1130
1131 static const struct drm_connector_funcs qxl_connector_funcs = {
1132         .dpms = drm_helper_connector_dpms,
1133         .detect = qxl_conn_detect,
1134         .fill_modes = drm_helper_probe_single_connector_modes,
1135         .set_property = qxl_conn_set_property,
1136         .destroy = qxl_conn_destroy,
1137         .reset = drm_atomic_helper_connector_reset,
1138         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1139         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1140 };
1141
1142 static void qxl_enc_destroy(struct drm_encoder *encoder)
1143 {
1144         drm_encoder_cleanup(encoder);
1145 }
1146
1147 static const struct drm_encoder_funcs qxl_enc_funcs = {
1148         .destroy = qxl_enc_destroy,
1149 };
1150
1151 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1152 {
1153         if (qdev->hotplug_mode_update_property)
1154                 return 0;
1155
1156         qdev->hotplug_mode_update_property =
1157                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1158                                           "hotplug_mode_update", 0, 1);
1159
1160         return 0;
1161 }
1162
1163 static int qdev_output_init(struct drm_device *dev, int num_output)
1164 {
1165         struct qxl_device *qdev = dev->dev_private;
1166         struct qxl_output *qxl_output;
1167         struct drm_connector *connector;
1168         struct drm_encoder *encoder;
1169
1170         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1171         if (!qxl_output)
1172                 return -ENOMEM;
1173
1174         qxl_output->index = num_output;
1175
1176         connector = &qxl_output->base;
1177         encoder = &qxl_output->enc;
1178         drm_connector_init(dev, &qxl_output->base,
1179                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1180
1181         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1182                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1183
1184         /* we get HPD via client monitors config */
1185         connector->polled = DRM_CONNECTOR_POLL_HPD;
1186         encoder->possible_crtcs = 1 << num_output;
1187         drm_mode_connector_attach_encoder(&qxl_output->base,
1188                                           &qxl_output->enc);
1189         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1190         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1191
1192         drm_object_attach_property(&connector->base,
1193                                    qdev->hotplug_mode_update_property, 0);
1194         drm_object_attach_property(&connector->base,
1195                                    dev->mode_config.suggested_x_property, 0);
1196         drm_object_attach_property(&connector->base,
1197                                    dev->mode_config.suggested_y_property, 0);
1198         return 0;
1199 }
1200
1201 static struct drm_framebuffer *
1202 qxl_user_framebuffer_create(struct drm_device *dev,
1203                             struct drm_file *file_priv,
1204                             const struct drm_mode_fb_cmd2 *mode_cmd)
1205 {
1206         struct drm_gem_object *obj;
1207         struct qxl_framebuffer *qxl_fb;
1208         int ret;
1209
1210         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1211         if (!obj)
1212                 return NULL;
1213
1214         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1215         if (qxl_fb == NULL)
1216                 return NULL;
1217
1218         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1219         if (ret) {
1220                 kfree(qxl_fb);
1221                 drm_gem_object_unreference_unlocked(obj);
1222                 return NULL;
1223         }
1224
1225         return &qxl_fb->base;
1226 }
1227
1228 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1229         .fb_create = qxl_user_framebuffer_create,
1230         .atomic_check = drm_atomic_helper_check,
1231         .atomic_commit = drm_atomic_helper_commit,
1232 };
1233
1234 int qxl_create_monitors_object(struct qxl_device *qdev)
1235 {
1236         int ret;
1237         struct drm_gem_object *gobj;
1238         int max_allowed = qxl_num_crtc;
1239         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1240                 max_allowed * sizeof(struct qxl_head);
1241
1242         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1243                                     QXL_GEM_DOMAIN_VRAM,
1244                                     false, false, NULL, &gobj);
1245         if (ret) {
1246                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1247                 return -ENOMEM;
1248         }
1249         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1250
1251         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1252         if (ret)
1253                 return ret;
1254
1255         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1256
1257         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1258         qdev->ram_header->monitors_config =
1259                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1260
1261         memset(qdev->monitors_config, 0, monitors_config_size);
1262         qdev->monitors_config->max_allowed = max_allowed;
1263         return 0;
1264 }
1265
1266 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1267 {
1268         int ret;
1269
1270         qdev->monitors_config = NULL;
1271         qdev->ram_header->monitors_config = 0;
1272
1273         qxl_bo_kunmap(qdev->monitors_config_bo);
1274         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1275         if (ret)
1276                 return ret;
1277
1278         qxl_bo_unref(&qdev->monitors_config_bo);
1279         return 0;
1280 }
1281
1282 int qxl_modeset_init(struct qxl_device *qdev)
1283 {
1284         int i;
1285         int ret;
1286
1287         drm_mode_config_init(&qdev->ddev);
1288
1289         ret = qxl_create_monitors_object(qdev);
1290         if (ret)
1291                 return ret;
1292
1293         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1294
1295         /* modes will be validated against the framebuffer size */
1296         qdev->ddev.mode_config.min_width = 0;
1297         qdev->ddev.mode_config.min_height = 0;
1298         qdev->ddev.mode_config.max_width = 8192;
1299         qdev->ddev.mode_config.max_height = 8192;
1300
1301         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1302
1303         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1304         qxl_mode_create_hotplug_mode_update_property(qdev);
1305
1306         for (i = 0 ; i < qxl_num_crtc; ++i) {
1307                 qdev_crtc_init(&qdev->ddev, i);
1308                 qdev_output_init(&qdev->ddev, i);
1309         }
1310
1311         qxl_display_read_client_monitors_config(qdev);
1312         qdev->mode_info.mode_config_initialized = true;
1313
1314         drm_mode_config_reset(&qdev->ddev);
1315
1316         /* primary surface must be created by this point, to allow
1317          * issuing command queue commands and having them read by
1318          * spice server. */
1319         qxl_fbdev_init(qdev);
1320         return 0;
1321 }
1322
1323 void qxl_modeset_fini(struct qxl_device *qdev)
1324 {
1325         qxl_fbdev_fini(qdev);
1326
1327         qxl_destroy_monitors_object(qdev);
1328         if (qdev->mode_info.mode_config_initialized) {
1329                 drm_mode_config_cleanup(&qdev->ddev);
1330                 qdev->mode_info.mode_config_initialized = false;
1331         }
1332 }