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 <linux/delay.h>
  28 #include <linux/iosys-map.h>
  29
  30 #include <drm/drm_drv.h>
  31 #include <drm/drm_atomic.h>
  32 #include <drm/drm_atomic_helper.h>
  33 #include <drm/drm_edid.h>
  34 #include <drm/drm_framebuffer.h>
  35 #include <drm/drm_gem_framebuffer_helper.h>
  36 #include <drm/drm_plane_helper.h>
  37 #include <drm/drm_probe_helper.h>
  38 #include <drm/drm_simple_kms_helper.h>
  39 #include <drm/drm_gem_atomic_helper.h>
  40
  41 #include "qxl_drv.h"
  42 #include "qxl_object.h"
  43
  44 static bool qxl_head_enabled(struct qxl_head *head)
  45 {
  46         return head->width && head->height;
  47 }
  48
  49 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
  50                 unsigned int count)
  51 {
  52         if (qdev->client_monitors_config &&
  53             count > qdev->client_monitors_config->count) {
  54                 kfree(qdev->client_monitors_config);
  55                 qdev->client_monitors_config = NULL;
  56         }
  57         if (!qdev->client_monitors_config) {
  58                 qdev->client_monitors_config = kzalloc(
  59                                 struct_size(qdev->client_monitors_config,
  60                                 heads, count), GFP_KERNEL);
  61                 if (!qdev->client_monitors_config)
  62                         return -ENOMEM;
  63         }
  64         qdev->client_monitors_config->count = count;
  65         return 0;
  66 }
  67
  68 enum {
  69         MONITORS_CONFIG_MODIFIED,
  70         MONITORS_CONFIG_UNCHANGED,
  71         MONITORS_CONFIG_BAD_CRC,
  72         MONITORS_CONFIG_ERROR,
  73 };
  74
  75 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  76 {
  77         int i;
  78         int num_monitors;
  79         uint32_t crc;
  80         int status = MONITORS_CONFIG_UNCHANGED;
  81
  82         num_monitors = qdev->rom->client_monitors_config.count;
  83         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  84                   sizeof(qdev->rom->client_monitors_config));
  85         if (crc != qdev->rom->client_monitors_config_crc)
  86                 return MONITORS_CONFIG_BAD_CRC;
  87         if (!num_monitors) {
  88                 DRM_DEBUG_KMS("no client monitors configured\n");
  89                 return status;
  90         }
  91         if (num_monitors > qxl_num_crtc) {
  92                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  93                               qxl_num_crtc, num_monitors);
  94                 num_monitors = qxl_num_crtc;
  95         } else {
  96                 num_monitors = qdev->rom->client_monitors_config.count;
  97         }
  98         if (qdev->client_monitors_config
  99               && (num_monitors != qdev->client_monitors_config->count)) {
 100                 status = MONITORS_CONFIG_MODIFIED;
 101         }
 102         if (qxl_alloc_client_monitors_config(qdev, num_monitors)) {
 103                 status = MONITORS_CONFIG_ERROR;
 104                 return status;
 105         }
 106         /* we copy max from the client but it isn't used */
 107         qdev->client_monitors_config->max_allowed = qxl_num_crtc;
 108         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
 109                 struct qxl_urect *c_rect =
 110                         &qdev->rom->client_monitors_config.heads[i];
 111                 struct qxl_head *client_head =
 112                         &qdev->client_monitors_config->heads[i];
 113                 if (client_head->x != c_rect->left) {
 114                         client_head->x = c_rect->left;
 115                         status = MONITORS_CONFIG_MODIFIED;
 116                 }
 117                 if (client_head->y != c_rect->top) {
 118                         client_head->y = c_rect->top;
 119                         status = MONITORS_CONFIG_MODIFIED;
 120                 }
 121                 if (client_head->width != c_rect->right - c_rect->left) {
 122                         client_head->width = c_rect->right - c_rect->left;
 123                         status = MONITORS_CONFIG_MODIFIED;
 124                 }
 125                 if (client_head->height != c_rect->bottom - c_rect->top) {
 126                         client_head->height = c_rect->bottom - c_rect->top;
 127                         status = MONITORS_CONFIG_MODIFIED;
 128                 }
 129                 if (client_head->surface_id != 0) {
 130                         client_head->surface_id = 0;
 131                         status = MONITORS_CONFIG_MODIFIED;
 132                 }
 133                 if (client_head->id != i) {
 134                         client_head->id = i;
 135                         status = MONITORS_CONFIG_MODIFIED;
 136                 }
 137                 if (client_head->flags != 0) {
 138                         client_head->flags = 0;
 139                         status = MONITORS_CONFIG_MODIFIED;
 140                 }
 141                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 142                           client_head->x, client_head->y);
 143         }
 144
 145         return status;
 146 }
 147
 148 static void qxl_update_offset_props(struct qxl_device *qdev)
 149 {
 150         struct drm_device *dev = &qdev->ddev;
 151         struct drm_connector *connector;
 152         struct qxl_output *output;
 153         struct qxl_head *head;
 154
 155         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 156                 output = drm_connector_to_qxl_output(connector);
 157
 158                 head = &qdev->client_monitors_config->heads[output->index];
 159
 160                 drm_object_property_set_value(&connector->base,
 161                         dev->mode_config.suggested_x_property, head->x);
 162                 drm_object_property_set_value(&connector->base,
 163                         dev->mode_config.suggested_y_property, head->y);
 164         }
 165 }
 166
 167 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 168 {
 169         struct drm_device *dev = &qdev->ddev;
 170         struct drm_modeset_acquire_ctx ctx;
 171         int status, retries, ret;
 172
 173         for (retries = 0; retries < 10; retries++) {
 174                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 175                 if (status != MONITORS_CONFIG_BAD_CRC)
 176                         break;
 177                 udelay(5);
 178         }
 179         if (status == MONITORS_CONFIG_ERROR) {
 180                 DRM_DEBUG_KMS("ignoring client monitors config: error");
 181                 return;
 182         }
 183         if (status == MONITORS_CONFIG_BAD_CRC) {
 184                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 185                 return;
 186         }
 187         if (status == MONITORS_CONFIG_UNCHANGED) {
 188                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
 189                 return;
 190         }
 191
 192         DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
 193         qxl_update_offset_props(qdev);
 194         DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 195         if (!drm_helper_hpd_irq_event(dev)) {
 196                 /* notify that the monitor configuration changed, to
 197                    adjust at the arbitrary resolution */
 198                 drm_kms_helper_hotplug_event(dev);
 199         }
 200 }
 201
 202 static int qxl_check_mode(struct qxl_device *qdev,
 203                           unsigned int width,
 204                           unsigned int height)
 205 {
 206         unsigned int stride;
 207         unsigned int size;
 208
 209         if (check_mul_overflow(width, 4u, &stride))
 210                 return -EINVAL;
 211         if (check_mul_overflow(stride, height, &size))
 212                 return -EINVAL;
 213         if (size > qdev->vram_size)
 214                 return -ENOMEM;
 215         return 0;
 216 }
 217
 218 static int qxl_check_framebuffer(struct qxl_device *qdev,
 219                                  struct qxl_bo *bo)
 220 {
 221         return qxl_check_mode(qdev, bo->surf.width, bo->surf.height);
 222 }
 223
 224 static int qxl_add_mode(struct drm_connector *connector,
 225                         unsigned int width,
 226                         unsigned int height,
 227                         bool preferred)
 228 {
 229         struct drm_device *dev = connector->dev;
 230         struct qxl_device *qdev = to_qxl(dev);
 231         struct drm_display_mode *mode = NULL;
 232         int rc;
 233
 234         rc = qxl_check_mode(qdev, width, height);
 235         if (rc != 0)
 236                 return 0;
 237
 238         mode = drm_cvt_mode(dev, width, height, 60, false, false, false);
 239         if (!mode)
 240                 return 0;
 241
 242         if (preferred)
 243                 mode->type |= DRM_MODE_TYPE_PREFERRED;
 244         mode->hdisplay = width;
 245         mode->vdisplay = height;
 246         drm_mode_set_name(mode);
 247         drm_mode_probed_add(connector, mode);
 248         return 1;
 249 }
 250
 251 static int qxl_add_monitors_config_modes(struct drm_connector *connector)
 252 {
 253         struct drm_device *dev = connector->dev;
 254         struct qxl_device *qdev = to_qxl(dev);
 255         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 256         int h = output->index;
 257         struct qxl_head *head;
 258
 259         if (!qdev->monitors_config)
 260                 return 0;
 261         if (h >= qxl_num_crtc)
 262                 return 0;
 263         if (!qdev->client_monitors_config)
 264                 return 0;
 265         if (h >= qdev->client_monitors_config->count)
 266                 return 0;
 267
 268         head = &qdev->client_monitors_config->heads[h];
 269         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
 270
 271         return qxl_add_mode(connector, head->width, head->height, true);
 272 }
 273
 274 static struct mode_size {
 275         int w;
 276         int h;
 277 } extra_modes[] = {
 278         { 720,  480},
 279         {1152,  768},
 280         {1280,  854},
 281 };
 282
 283 static int qxl_add_extra_modes(struct drm_connector *connector)
 284 {
 285         int i, ret = 0;
 286
 287         for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
 288                 ret += qxl_add_mode(connector,
 289                                     extra_modes[i].w,
 290                                     extra_modes[i].h,
 291                                     false);
 292         return ret;
 293 }
 294
 295 static void qxl_send_monitors_config(struct qxl_device *qdev)
 296 {
 297         int i;
 298
 299         BUG_ON(!qdev->ram_header->monitors_config);
 300
 301         if (qdev->monitors_config->count == 0)
 302                 return;
 303
 304         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 305                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 306
 307                 if (head->y > 8192 || head->x > 8192 ||
 308                     head->width > 8192 || head->height > 8192) {
 309                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 310                                   i, head->width, head->height,
 311                                   head->x, head->y);
 312                         return;
 313                 }
 314         }
 315         qxl_io_monitors_config(qdev);
 316 }
 317
 318 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
 319                                             const char *reason)
 320 {
 321         struct drm_device *dev = crtc->dev;
 322         struct qxl_device *qdev = to_qxl(dev);
 323         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 324         struct qxl_head head;
 325         int oldcount, i = qcrtc->index;
 326
 327         if (!qdev->primary_bo) {
 328                 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
 329                 return;
 330         }
 331
 332         if (!qdev->monitors_config || qxl_num_crtc <= i)
 333                 return;
 334
 335         head.id = i;
 336         head.flags = 0;
 337         head.surface_id = 0;
 338         oldcount = qdev->monitors_config->count;
 339         if (crtc->state->active) {
 340                 struct drm_display_mode *mode = &crtc->mode;
 341
 342                 head.width = mode->hdisplay;
 343                 head.height = mode->vdisplay;
 344                 head.x = crtc->x;
 345                 head.y = crtc->y;
 346                 if (qdev->monitors_config->count < i + 1)
 347                         qdev->monitors_config->count = i + 1;
 348                 if (qdev->primary_bo == qdev->dumb_shadow_bo)
 349                         head.x += qdev->dumb_heads[i].x;
 350         } else if (i > 0) {
 351                 head.width = 0;
 352                 head.height = 0;
 353                 head.x = 0;
 354                 head.y = 0;
 355                 if (qdev->monitors_config->count == i + 1)
 356                         qdev->monitors_config->count = i;
 357         } else {
 358                 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
 359                 return;
 360         }
 361
 362         if (head.width  == qdev->monitors_config->heads[i].width  &&
 363             head.height == qdev->monitors_config->heads[i].height &&
 364             head.x      == qdev->monitors_config->heads[i].x      &&
 365             head.y      == qdev->monitors_config->heads[i].y      &&
 366             oldcount    == qdev->monitors_config->count)
 367                 return;
 368
 369         DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
 370                       i, head.width, head.height, head.x, head.y,
 371                       crtc->state->active ? "on" : "off", reason);
 372         if (oldcount != qdev->monitors_config->count)
 373                 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
 374                               oldcount, qdev->monitors_config->count,
 375                               qxl_num_crtc);
 376
 377         qdev->monitors_config->heads[i] = head;
 378         qdev->monitors_config->max_allowed = qxl_num_crtc;
 379         qxl_send_monitors_config(qdev);
 380 }
 381
 382 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 383                                   struct drm_atomic_state *state)
 384 {
 385         qxl_crtc_update_monitors_config(crtc, "flush");
 386 }
 387
 388 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 389 {
 390         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 391
 392         qxl_bo_unref(&qxl_crtc->cursor_bo);
 393         drm_crtc_cleanup(crtc);
 394         kfree(qxl_crtc);
 395 }
 396
 397 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 398         .set_config = drm_atomic_helper_set_config,
 399         .destroy = qxl_crtc_destroy,
 400         .page_flip = drm_atomic_helper_page_flip,
 401         .reset = drm_atomic_helper_crtc_reset,
 402         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 403         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 404 };
 405
 406 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 407                                          struct drm_file *file_priv,
 408                                          unsigned int flags, unsigned int color,
 409                                          struct drm_clip_rect *clips,
 410                                          unsigned int num_clips)
 411 {
 412         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 413         struct qxl_device *qdev = to_qxl(fb->dev);
 414         struct drm_clip_rect norect;
 415         struct qxl_bo *qobj;
 416         struct drm_modeset_acquire_ctx ctx;
 417         bool is_primary;
 418         int inc = 1, ret;
 419
 420         DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
 421
 422         qobj = gem_to_qxl_bo(fb->obj[0]);
 423         /* if we aren't primary surface ignore this */
 424         is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
 425         if (!is_primary)
 426                 goto out_lock_end;
 427
 428         if (!num_clips) {
 429                 num_clips = 1;
 430                 clips = &norect;
 431                 norect.x1 = norect.y1 = 0;
 432                 norect.x2 = fb->width;
 433                 norect.y2 = fb->height;
 434         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 435                 num_clips /= 2;
 436                 inc = 2; /* skip source rects */
 437         }
 438
 439         qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
 440                           clips, num_clips, inc, 0);
 441
 442 out_lock_end:
 443         DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret);
 444
 445         return 0;
 446 }
 447
 448 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 449         .destroy = drm_gem_fb_destroy,
 450         .dirty = qxl_framebuffer_surface_dirty,
 451         .create_handle = drm_gem_fb_create_handle,
 452 };
 453
 454 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
 455                                    struct drm_atomic_state *state)
 456 {
 457         qxl_crtc_update_monitors_config(crtc, "enable");
 458 }
 459
 460 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
 461                                     struct drm_atomic_state *state)
 462 {
 463         qxl_crtc_update_monitors_config(crtc, "disable");
 464 }
 465
 466 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 467         .atomic_flush = qxl_crtc_atomic_flush,
 468         .atomic_enable = qxl_crtc_atomic_enable,
 469         .atomic_disable = qxl_crtc_atomic_disable,
 470 };
 471
 472 static int qxl_primary_atomic_check(struct drm_plane *plane,
 473                                     struct drm_atomic_state *state)
 474 {
 475         struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 476                                                                                  plane);
 477         struct qxl_device *qdev = to_qxl(plane->dev);
 478         struct qxl_bo *bo;
 479
 480         if (!new_plane_state->crtc || !new_plane_state->fb)
 481                 return 0;
 482
 483         bo = gem_to_qxl_bo(new_plane_state->fb->obj[0]);
 484
 485         return qxl_check_framebuffer(qdev, bo);
 486 }
 487
 488 static int qxl_primary_apply_cursor(struct qxl_device *qdev,
 489                                     struct drm_plane_state *plane_state)
 490 {
 491         struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
 492         struct qxl_cursor_cmd *cmd;
 493         struct qxl_release *release;
 494         int ret = 0;
 495
 496         if (!qcrtc->cursor_bo)
 497                 return 0;
 498
 499         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 500                                          QXL_RELEASE_CURSOR_CMD,
 501                                          &release, NULL);
 502         if (ret)
 503                 return ret;
 504
 505         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 506         if (ret)
 507                 goto out_free_release;
 508
 509         ret = qxl_release_reserve_list(release, false);
 510         if (ret)
 511                 goto out_free_release;
 512
 513         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 514         cmd->type = QXL_CURSOR_SET;
 515         cmd->u.set.position.x = plane_state->crtc_x + plane_state->hotspot_x;
 516         cmd->u.set.position.y = plane_state->crtc_y + plane_state->hotspot_y;
 517
 518         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 519
 520         cmd->u.set.visible = 1;
 521         qxl_release_unmap(qdev, release, &cmd->release_info);
 522
 523         qxl_release_fence_buffer_objects(release);
 524         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 525
 526         return ret;
 527
 528 out_free_release:
 529         qxl_release_free(qdev, release);
 530         return ret;
 531 }
 532
 533 static int qxl_primary_move_cursor(struct qxl_device *qdev,
 534                                    struct drm_plane_state *plane_state)
 535 {
 536         struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
 537         struct qxl_cursor_cmd *cmd;
 538         struct qxl_release *release;
 539         int ret = 0;
 540
 541         if (!qcrtc->cursor_bo)
 542                 return 0;
 543
 544         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 545                                          QXL_RELEASE_CURSOR_CMD,
 546                                          &release, NULL);
 547         if (ret)
 548                 return ret;
 549
 550         ret = qxl_release_reserve_list(release, true);
 551         if (ret) {
 552                 qxl_release_free(qdev, release);
 553                 return ret;
 554         }
 555
 556         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 557         cmd->type = QXL_CURSOR_MOVE;
 558         cmd->u.position.x = plane_state->crtc_x + plane_state->hotspot_x;
 559         cmd->u.position.y = plane_state->crtc_y + plane_state->hotspot_y;
 560         qxl_release_unmap(qdev, release, &cmd->release_info);
 561
 562         qxl_release_fence_buffer_objects(release);
 563         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 564         return ret;
 565 }
 566
 567 static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
 568                                         struct qxl_bo *user_bo,
 569                                         int hot_x, int hot_y)
 570 {
 571         static const u32 size = 64 * 64 * 4;
 572         struct qxl_bo *cursor_bo;
 573         struct iosys_map cursor_map;
 574         struct iosys_map user_map;
 575         struct qxl_cursor cursor;
 576         int ret;
 577
 578         if (!user_bo)
 579                 return NULL;
 580
 581         ret = qxl_bo_create(qdev, sizeof(struct qxl_cursor) + size,
 582                             false, true, QXL_GEM_DOMAIN_VRAM, 1,
 583                             NULL, &cursor_bo);
 584         if (ret)
 585                 goto err;
 586
 587         ret = qxl_bo_pin_and_vmap(cursor_bo, &cursor_map);
 588         if (ret)
 589                 goto err_unref;
 590
 591         ret = qxl_bo_pin_and_vmap(user_bo, &user_map);
 592         if (ret)
 593                 goto err_unmap;
 594
 595         cursor.header.unique = 0;
 596         cursor.header.type = SPICE_CURSOR_TYPE_ALPHA;
 597         cursor.header.width = 64;
 598         cursor.header.height = 64;
 599         cursor.header.hot_spot_x = hot_x;
 600         cursor.header.hot_spot_y = hot_y;
 601         cursor.data_size = size;
 602         cursor.chunk.next_chunk = 0;
 603         cursor.chunk.prev_chunk = 0;
 604         cursor.chunk.data_size = size;
 605         if (cursor_map.is_iomem) {
 606                 memcpy_toio(cursor_map.vaddr_iomem,
 607                             &cursor, sizeof(cursor));
 608                 memcpy_toio(cursor_map.vaddr_iomem + sizeof(cursor),
 609                             user_map.vaddr, size);
 610         } else {
 611                 memcpy(cursor_map.vaddr,
 612                        &cursor, sizeof(cursor));
 613                 memcpy(cursor_map.vaddr + sizeof(cursor),
 614                        user_map.vaddr, size);
 615         }
 616
 617         qxl_bo_vunmap_and_unpin(user_bo);
 618         qxl_bo_vunmap_and_unpin(cursor_bo);
 619         return cursor_bo;
 620
 621 err_unmap:
 622         qxl_bo_vunmap_and_unpin(cursor_bo);
 623 err_unref:
 624         qxl_bo_unpin(cursor_bo);
 625         qxl_bo_unref(&cursor_bo);
 626 err:
 627         return NULL;
 628 }
 629
 630 static void qxl_free_cursor(struct qxl_bo *cursor_bo)
 631 {
 632         if (!cursor_bo)
 633                 return;
 634
 635         qxl_bo_unpin(cursor_bo);
 636         qxl_bo_unref(&cursor_bo);
 637 }
 638
 639 static void qxl_primary_atomic_update(struct drm_plane *plane,
 640                                       struct drm_atomic_state *state)
 641 {
 642         struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 643                                                                            plane);
 644         struct qxl_device *qdev = to_qxl(plane->dev);
 645         struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]);
 646         struct qxl_bo *primary;
 647         struct drm_clip_rect norect = {
 648             .x1 = 0,
 649             .y1 = 0,
 650             .x2 = new_state->fb->width,
 651             .y2 = new_state->fb->height
 652         };
 653         uint32_t dumb_shadow_offset = 0;
 654
 655         primary = bo->shadow ? bo->shadow : bo;
 656
 657         if (!primary->is_primary) {
 658                 if (qdev->primary_bo)
 659                         qxl_io_destroy_primary(qdev);
 660                 qxl_io_create_primary(qdev, primary);
 661                 qxl_primary_apply_cursor(qdev, plane->state);
 662         }
 663
 664         if (bo->is_dumb)
 665                 dumb_shadow_offset =
 666                         qdev->dumb_heads[new_state->crtc->index].x;
 667
 668         qxl_draw_dirty_fb(qdev, new_state->fb, bo, 0, 0, &norect, 1, 1,
 669                           dumb_shadow_offset);
 670 }
 671
 672 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 673                                        struct drm_atomic_state *state)
 674 {
 675         struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 676                                                                            plane);
 677         struct qxl_device *qdev = to_qxl(plane->dev);
 678
 679         if (old_state->fb) {
 680                 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
 681
 682                 if (bo->shadow)
 683                         bo = bo->shadow;
 684                 if (bo->is_primary)
 685                         qxl_io_destroy_primary(qdev);
 686         }
 687 }
 688
 689 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 690                                      struct drm_atomic_state *state)
 691 {
 692         struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 693                                                                            plane);
 694         struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 695                                                                            plane);
 696         struct qxl_device *qdev = to_qxl(plane->dev);
 697         struct drm_framebuffer *fb = new_state->fb;
 698
 699         if (fb != old_state->fb) {
 700                 qxl_primary_apply_cursor(qdev, new_state);
 701         } else {
 702                 qxl_primary_move_cursor(qdev, new_state);
 703         }
 704 }
 705
 706 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
 707                                       struct drm_atomic_state *state)
 708 {
 709         struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 710                                                                            plane);
 711         struct qxl_device *qdev = to_qxl(plane->dev);
 712         struct qxl_crtc *qcrtc;
 713         struct qxl_release *release;
 714         struct qxl_cursor_cmd *cmd;
 715         int ret;
 716
 717         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 718                                          QXL_RELEASE_CURSOR_CMD,
 719                                          &release, NULL);
 720         if (ret)
 721                 return;
 722
 723         ret = qxl_release_reserve_list(release, true);
 724         if (ret) {
 725                 qxl_release_free(qdev, release);
 726                 return;
 727         }
 728
 729         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 730         cmd->type = QXL_CURSOR_HIDE;
 731         qxl_release_unmap(qdev, release, &cmd->release_info);
 732
 733         qxl_release_fence_buffer_objects(release);
 734         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 735
 736         qcrtc = to_qxl_crtc(old_state->crtc);
 737         qxl_free_cursor(qcrtc->cursor_bo);
 738         qcrtc->cursor_bo = NULL;
 739 }
 740
 741 static void qxl_update_dumb_head(struct qxl_device *qdev,
 742                                  int index, struct qxl_bo *bo)
 743 {
 744         uint32_t width, height;
 745
 746         if (index >= qdev->monitors_config->max_allowed)
 747                 return;
 748
 749         if (bo && bo->is_dumb) {
 750                 width = bo->surf.width;
 751                 height = bo->surf.height;
 752         } else {
 753                 width = 0;
 754                 height = 0;
 755         }
 756
 757         if (qdev->dumb_heads[index].width == width &&
 758             qdev->dumb_heads[index].height == height)
 759                 return;
 760
 761         DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
 762                   qdev->dumb_heads[index].width,
 763                   qdev->dumb_heads[index].height,
 764                   width, height);
 765         qdev->dumb_heads[index].width = width;
 766         qdev->dumb_heads[index].height = height;
 767 }
 768
 769 static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
 770                                  struct qxl_surface *surf)
 771 {
 772         struct qxl_head *head;
 773         int i;
 774
 775         memset(surf, 0, sizeof(*surf));
 776         for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
 777                 head = qdev->dumb_heads + i;
 778                 head->x = surf->width;
 779                 surf->width += head->width;
 780                 if (surf->height < head->height)
 781                         surf->height = head->height;
 782         }
 783         if (surf->width < 64)
 784                 surf->width = 64;
 785         if (surf->height < 64)
 786                 surf->height = 64;
 787         surf->format = SPICE_SURFACE_FMT_32_xRGB;
 788         surf->stride = surf->width * 4;
 789
 790         if (!qdev->dumb_shadow_bo ||
 791             qdev->dumb_shadow_bo->surf.width != surf->width ||
 792             qdev->dumb_shadow_bo->surf.height != surf->height)
 793                 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
 794 }
 795
 796 static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo,
 797                                int crtc_index)
 798 {
 799         struct qxl_surface surf;
 800
 801         qxl_update_dumb_head(qdev, crtc_index,
 802                              user_bo);
 803         qxl_calc_dumb_shadow(qdev, &surf);
 804         if (!qdev->dumb_shadow_bo ||
 805             qdev->dumb_shadow_bo->surf.width  != surf.width ||
 806             qdev->dumb_shadow_bo->surf.height != surf.height) {
 807                 if (qdev->dumb_shadow_bo) {
 808                         qxl_bo_unpin(qdev->dumb_shadow_bo);
 809                         drm_gem_object_put
 810                                 (&qdev->dumb_shadow_bo->tbo.base);
 811                         qdev->dumb_shadow_bo = NULL;
 812                 }
 813                 qxl_bo_create(qdev, surf.height * surf.stride,
 814                               true, true, QXL_GEM_DOMAIN_SURFACE, 0,
 815                               &surf, &qdev->dumb_shadow_bo);
 816         }
 817         if (user_bo->shadow != qdev->dumb_shadow_bo) {
 818                 if (user_bo->shadow) {
 819                         qxl_bo_unpin(user_bo->shadow);
 820                         drm_gem_object_put
 821                                 (&user_bo->shadow->tbo.base);
 822                         user_bo->shadow = NULL;
 823                 }
 824                 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
 825                 user_bo->shadow = qdev->dumb_shadow_bo;
 826                 qxl_bo_pin(user_bo->shadow);
 827         }
 828 }
 829
 830 static int qxl_plane_prepare_fb(struct drm_plane *plane,
 831                                 struct drm_plane_state *new_state)
 832 {
 833         struct qxl_device *qdev = to_qxl(plane->dev);
 834         struct drm_gem_object *obj;
 835         struct qxl_bo *user_bo;
 836         int ret;
 837
 838         if (!new_state->fb)
 839                 return 0;
 840
 841         obj = new_state->fb->obj[0];
 842         user_bo = gem_to_qxl_bo(obj);
 843
 844         if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
 845             user_bo->is_dumb) {
 846                 qxl_prepare_shadow(qdev, user_bo, new_state->crtc->index);
 847         }
 848
 849         if (plane->type == DRM_PLANE_TYPE_CURSOR &&
 850             plane->state->fb != new_state->fb) {
 851                 struct qxl_crtc *qcrtc = to_qxl_crtc(new_state->crtc);
 852                 struct qxl_bo *old_cursor_bo = qcrtc->cursor_bo;
 853
 854                 qcrtc->cursor_bo = qxl_create_cursor(qdev, user_bo,
 855                                                      new_state->hotspot_x,
 856                                                      new_state->hotspot_y);
 857                 qxl_free_cursor(old_cursor_bo);
 858         }
 859
 860         ret = qxl_bo_pin(user_bo);
 861         if (ret)
 862                 return ret;
 863
 864         return drm_gem_plane_helper_prepare_fb(plane, new_state);
 865 }
 866
 867 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 868                                  struct drm_plane_state *old_state)
 869 {
 870         struct drm_gem_object *obj;
 871         struct qxl_bo *user_bo;
 872
 873         if (!old_state->fb) {
 874                 /*
 875                  * we never executed prepare_fb, so there's nothing to
 876                  * unpin.
 877                  */
 878                 return;
 879         }
 880
 881         obj = old_state->fb->obj[0];
 882         user_bo = gem_to_qxl_bo(obj);
 883         qxl_bo_unpin(user_bo);
 884
 885         if (old_state->fb != plane->state->fb && user_bo->shadow) {
 886                 qxl_bo_unpin(user_bo->shadow);
 887                 drm_gem_object_put(&user_bo->shadow->tbo.base);
 888                 user_bo->shadow = NULL;
 889         }
 890 }
 891
 892 static const uint32_t qxl_cursor_plane_formats[] = {
 893         DRM_FORMAT_ARGB8888,
 894 };
 895
 896 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 897         .atomic_update = qxl_cursor_atomic_update,
 898         .atomic_disable = qxl_cursor_atomic_disable,
 899         .prepare_fb = qxl_plane_prepare_fb,
 900         .cleanup_fb = qxl_plane_cleanup_fb,
 901 };
 902
 903 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 904         .update_plane   = drm_atomic_helper_update_plane,
 905         .disable_plane  = drm_atomic_helper_disable_plane,
 906         .destroy        = drm_plane_helper_destroy,
 907         .reset          = drm_atomic_helper_plane_reset,
 908         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 909         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 910 };
 911
 912 static const uint32_t qxl_primary_plane_formats[] = {
 913         DRM_FORMAT_XRGB8888,
 914         DRM_FORMAT_ARGB8888,
 915 };
 916
 917 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 918         .atomic_check = qxl_primary_atomic_check,
 919         .atomic_update = qxl_primary_atomic_update,
 920         .atomic_disable = qxl_primary_atomic_disable,
 921         .prepare_fb = qxl_plane_prepare_fb,
 922         .cleanup_fb = qxl_plane_cleanup_fb,
 923 };
 924
 925 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 926         .update_plane   = drm_atomic_helper_update_plane,
 927         .disable_plane  = drm_atomic_helper_disable_plane,
 928         .destroy        = drm_plane_helper_destroy,
 929         .reset          = drm_atomic_helper_plane_reset,
 930         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 931         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 932 };
 933
 934 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 935                                           unsigned int possible_crtcs,
 936                                           enum drm_plane_type type)
 937 {
 938         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 939         struct drm_plane *plane;
 940         const struct drm_plane_funcs *funcs;
 941         const uint32_t *formats;
 942         int num_formats;
 943         int err;
 944
 945         if (type == DRM_PLANE_TYPE_PRIMARY) {
 946                 funcs = &qxl_primary_plane_funcs;
 947                 formats = qxl_primary_plane_formats;
 948                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 949                 helper_funcs = &primary_helper_funcs;
 950         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 951                 funcs = &qxl_cursor_plane_funcs;
 952                 formats = qxl_cursor_plane_formats;
 953                 helper_funcs = &qxl_cursor_helper_funcs;
 954                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 955         } else {
 956                 return ERR_PTR(-EINVAL);
 957         }
 958
 959         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 960         if (!plane)
 961                 return ERR_PTR(-ENOMEM);
 962
 963         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 964                                        funcs, formats, num_formats,
 965                                        NULL, type, NULL);
 966         if (err)
 967                 goto free_plane;
 968
 969         drm_plane_helper_add(plane, helper_funcs);
 970
 971         return plane;
 972
 973 free_plane:
 974         kfree(plane);
 975         return ERR_PTR(-EINVAL);
 976 }
 977
 978 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 979 {
 980         struct qxl_crtc *qxl_crtc;
 981         struct drm_plane *primary, *cursor;
 982         struct qxl_device *qdev = to_qxl(dev);
 983         int r;
 984
 985         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 986         if (!qxl_crtc)
 987                 return -ENOMEM;
 988
 989         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 990         if (IS_ERR(primary)) {
 991                 r = -ENOMEM;
 992                 goto free_mem;
 993         }
 994
 995         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 996         if (IS_ERR(cursor)) {
 997                 r = -ENOMEM;
 998                 goto clean_primary;
 999         }
1000
1001         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
1002                                       &qxl_crtc_funcs, NULL);
1003         if (r)
1004                 goto clean_cursor;
1005
1006         qxl_crtc->index = crtc_id;
1007         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
1008         return 0;
1009
1010 clean_cursor:
1011         drm_plane_cleanup(cursor);
1012         kfree(cursor);
1013 clean_primary:
1014         drm_plane_cleanup(primary);
1015         kfree(primary);
1016 free_mem:
1017         kfree(qxl_crtc);
1018         return r;
1019 }
1020
1021 static int qxl_conn_get_modes(struct drm_connector *connector)
1022 {
1023         struct drm_device *dev = connector->dev;
1024         struct qxl_device *qdev = to_qxl(dev);
1025         struct qxl_output *output = drm_connector_to_qxl_output(connector);
1026         unsigned int pwidth = 1024;
1027         unsigned int pheight = 768;
1028         int ret = 0;
1029
1030         if (qdev->client_monitors_config) {
1031                 struct qxl_head *head;
1032                 head = &qdev->client_monitors_config->heads[output->index];
1033                 if (head->width)
1034                         pwidth = head->width;
1035                 if (head->height)
1036                         pheight = head->height;
1037         }
1038
1039         ret += drm_add_modes_noedid(connector, 8192, 8192);
1040         ret += qxl_add_extra_modes(connector);
1041         ret += qxl_add_monitors_config_modes(connector);
1042         drm_set_preferred_mode(connector, pwidth, pheight);
1043         return ret;
1044 }
1045
1046 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
1047                                struct drm_display_mode *mode)
1048 {
1049         struct drm_device *ddev = connector->dev;
1050         struct qxl_device *qdev = to_qxl(ddev);
1051
1052         if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
1053                 return MODE_BAD;
1054
1055         return MODE_OK;
1056 }
1057
1058 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1059 {
1060         struct qxl_output *qxl_output =
1061                 drm_connector_to_qxl_output(connector);
1062
1063         DRM_DEBUG("\n");
1064         return &qxl_output->enc;
1065 }
1066
1067 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1068         .get_modes = qxl_conn_get_modes,
1069         .mode_valid = qxl_conn_mode_valid,
1070         .best_encoder = qxl_best_encoder,
1071 };
1072
1073 static enum drm_connector_status qxl_conn_detect(
1074                         struct drm_connector *connector,
1075                         bool force)
1076 {
1077         struct qxl_output *output =
1078                 drm_connector_to_qxl_output(connector);
1079         struct drm_device *ddev = connector->dev;
1080         struct qxl_device *qdev = to_qxl(ddev);
1081         bool connected = false;
1082
1083         /* The first monitor is always connected */
1084         if (!qdev->client_monitors_config) {
1085                 if (output->index == 0)
1086                         connected = true;
1087         } else
1088                 connected = qdev->client_monitors_config->count > output->index &&
1089                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1090
1091         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1092
1093         return connected ? connector_status_connected
1094                          : connector_status_disconnected;
1095 }
1096
1097 static void qxl_conn_destroy(struct drm_connector *connector)
1098 {
1099         struct qxl_output *qxl_output =
1100                 drm_connector_to_qxl_output(connector);
1101
1102         drm_connector_unregister(connector);
1103         drm_connector_cleanup(connector);
1104         kfree(qxl_output);
1105 }
1106
1107 static const struct drm_connector_funcs qxl_connector_funcs = {
1108         .detect = qxl_conn_detect,
1109         .fill_modes = drm_helper_probe_single_connector_modes,
1110         .destroy = qxl_conn_destroy,
1111         .reset = drm_atomic_helper_connector_reset,
1112         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1113         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1114 };
1115
1116 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1117 {
1118         if (qdev->hotplug_mode_update_property)
1119                 return 0;
1120
1121         qdev->hotplug_mode_update_property =
1122                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1123                                           "hotplug_mode_update", 0, 1);
1124
1125         return 0;
1126 }
1127
1128 static int qdev_output_init(struct drm_device *dev, int num_output)
1129 {
1130         struct qxl_device *qdev = to_qxl(dev);
1131         struct qxl_output *qxl_output;
1132         struct drm_connector *connector;
1133         struct drm_encoder *encoder;
1134         int ret;
1135
1136         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1137         if (!qxl_output)
1138                 return -ENOMEM;
1139
1140         qxl_output->index = num_output;
1141
1142         connector = &qxl_output->base;
1143         encoder = &qxl_output->enc;
1144         drm_connector_init(dev, &qxl_output->base,
1145                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1146
1147         ret = drm_simple_encoder_init(dev, &qxl_output->enc,
1148                                       DRM_MODE_ENCODER_VIRTUAL);
1149         if (ret) {
1150                 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n",
1151                         ret);
1152                 goto err_drm_connector_cleanup;
1153         }
1154
1155         /* we get HPD via client monitors config */
1156         connector->polled = DRM_CONNECTOR_POLL_HPD;
1157         encoder->possible_crtcs = 1 << num_output;
1158         drm_connector_attach_encoder(&qxl_output->base,
1159                                           &qxl_output->enc);
1160         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1161
1162         drm_object_attach_property(&connector->base,
1163                                    qdev->hotplug_mode_update_property, 0);
1164         drm_object_attach_property(&connector->base,
1165                                    dev->mode_config.suggested_x_property, 0);
1166         drm_object_attach_property(&connector->base,
1167                                    dev->mode_config.suggested_y_property, 0);
1168         return 0;
1169
1170 err_drm_connector_cleanup:
1171         drm_connector_cleanup(&qxl_output->base);
1172         kfree(qxl_output);
1173         return ret;
1174 }
1175
1176 static struct drm_framebuffer *
1177 qxl_user_framebuffer_create(struct drm_device *dev,
1178                             struct drm_file *file_priv,
1179                             const struct drm_mode_fb_cmd2 *mode_cmd)
1180 {
1181         return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1182                                             &qxl_fb_funcs);
1183 }
1184
1185 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1186         .fb_create = qxl_user_framebuffer_create,
1187         .atomic_check = drm_atomic_helper_check,
1188         .atomic_commit = drm_atomic_helper_commit,
1189 };
1190
1191 int qxl_create_monitors_object(struct qxl_device *qdev)
1192 {
1193         int ret;
1194         struct drm_gem_object *gobj;
1195         struct iosys_map map;
1196         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1197                 qxl_num_crtc * sizeof(struct qxl_head);
1198
1199         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1200                                     QXL_GEM_DOMAIN_VRAM,
1201                                     false, false, NULL, &gobj);
1202         if (ret) {
1203                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1204                 return -ENOMEM;
1205         }
1206         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1207
1208         ret = qxl_bo_pin_and_vmap(qdev->monitors_config_bo, &map);
1209         if (ret)
1210                 return ret;
1211
1212         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1213         qdev->ram_header->monitors_config =
1214                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1215
1216         memset(qdev->monitors_config, 0, monitors_config_size);
1217         qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1218                                    GFP_KERNEL);
1219         if (!qdev->dumb_heads) {
1220                 qxl_destroy_monitors_object(qdev);
1221                 return -ENOMEM;
1222         }
1223         return 0;
1224 }
1225
1226 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1227 {
1228         int ret;
1229
1230         if (!qdev->monitors_config_bo)
1231                 return 0;
1232
1233         kfree(qdev->dumb_heads);
1234         qdev->dumb_heads = NULL;
1235
1236         qdev->monitors_config = NULL;
1237         qdev->ram_header->monitors_config = 0;
1238
1239         ret = qxl_bo_vunmap_and_unpin(qdev->monitors_config_bo);
1240         if (ret)
1241                 return ret;
1242
1243         qxl_bo_unref(&qdev->monitors_config_bo);
1244         return 0;
1245 }
1246
1247 int qxl_modeset_init(struct qxl_device *qdev)
1248 {
1249         int i;
1250         int ret;
1251
1252         ret = drmm_mode_config_init(&qdev->ddev);
1253         if (ret)
1254                 return ret;
1255
1256         ret = qxl_create_monitors_object(qdev);
1257         if (ret)
1258                 return ret;
1259
1260         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1261
1262         /* modes will be validated against the framebuffer size */
1263         qdev->ddev.mode_config.min_width = 0;
1264         qdev->ddev.mode_config.min_height = 0;
1265         qdev->ddev.mode_config.max_width = 8192;
1266         qdev->ddev.mode_config.max_height = 8192;
1267
1268         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1269         qxl_mode_create_hotplug_mode_update_property(qdev);
1270
1271         for (i = 0 ; i < qxl_num_crtc; ++i) {
1272                 qdev_crtc_init(&qdev->ddev, i);
1273                 qdev_output_init(&qdev->ddev, i);
1274         }
1275
1276         qxl_display_read_client_monitors_config(qdev);
1277
1278         drm_mode_config_reset(&qdev->ddev);
1279         return 0;
1280 }
1281
1282 void qxl_modeset_fini(struct qxl_device *qdev)
1283 {
1284         if (qdev->dumb_shadow_bo) {
1285                 qxl_bo_unpin(qdev->dumb_shadow_bo);
1286                 drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base);
1287                 qdev->dumb_shadow_bo = NULL;
1288         }
1289         qxl_destroy_monitors_object(qdev);
1290 }