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
  27 #include <linux/crc32.h>
  28
  29 #include "qxl_drv.h"
  30 #include "qxl_object.h"
  31 #include "drm_crtc_helper.h"
  32 #include <drm/drm_plane_helper.h>
  33
  34 static bool qxl_head_enabled(struct qxl_head *head)
  35 {
  36         return head->width && head->height;
  37 }
  38
  39 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  40 {
  41         if (qdev->client_monitors_config &&
  42             count > qdev->client_monitors_config->count) {
  43                 kfree(qdev->client_monitors_config);
  44                 qdev->client_monitors_config = NULL;
  45         }
  46         if (!qdev->client_monitors_config) {
  47                 qdev->client_monitors_config = kzalloc(
  48                                 sizeof(struct qxl_monitors_config) +
  49                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  50                 if (!qdev->client_monitors_config) {
  51                         qxl_io_log(qdev,
  52                                    "%s: allocation failure for %u heads\n",
  53                                    __func__, count);
  54                         return;
  55                 }
  56         }
  57         qdev->client_monitors_config->count = count;
  58 }
  59
  60 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  61 {
  62         int i;
  63         int num_monitors;
  64         uint32_t crc;
  65
  66         num_monitors = qdev->rom->client_monitors_config.count;
  67         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  68                   sizeof(qdev->rom->client_monitors_config));
  69         if (crc != qdev->rom->client_monitors_config_crc) {
  70                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
  71                            sizeof(qdev->rom->client_monitors_config),
  72                            qdev->rom->client_monitors_config_crc);
  73                 return 1;
  74         }
  75         if (num_monitors > qdev->monitors_config->max_allowed) {
  76                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  77                               qdev->monitors_config->max_allowed, num_monitors);
  78                 num_monitors = qdev->monitors_config->max_allowed;
  79         } else {
  80                 num_monitors = qdev->rom->client_monitors_config.count;
  81         }
  82         qxl_alloc_client_monitors_config(qdev, num_monitors);
  83         /* we copy max from the client but it isn't used */
  84         qdev->client_monitors_config->max_allowed =
  85                                 qdev->monitors_config->max_allowed;
  86         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
  87                 struct qxl_urect *c_rect =
  88                         &qdev->rom->client_monitors_config.heads[i];
  89                 struct qxl_head *client_head =
  90                         &qdev->client_monitors_config->heads[i];
  91                 client_head->x = c_rect->left;
  92                 client_head->y = c_rect->top;
  93                 client_head->width = c_rect->right - c_rect->left;
  94                 client_head->height = c_rect->bottom - c_rect->top;
  95                 client_head->surface_id = 0;
  96                 client_head->id = i;
  97                 client_head->flags = 0;
  98                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
  99                           client_head->x, client_head->y);
 100         }
 101         return 0;
 102 }
 103
 104 static void qxl_update_offset_props(struct qxl_device *qdev)
 105 {
 106         struct drm_device *dev = qdev->ddev;
 107         struct drm_connector *connector;
 108         struct qxl_output *output;
 109         struct qxl_head *head;
 110
 111         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 112                 output = drm_connector_to_qxl_output(connector);
 113
 114                 head = &qdev->client_monitors_config->heads[output->index];
 115
 116                 drm_object_property_set_value(&connector->base,
 117                         dev->mode_config.suggested_x_property, head->x);
 118                 drm_object_property_set_value(&connector->base,
 119                         dev->mode_config.suggested_y_property, head->y);
 120         }
 121 }
 122
 123 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 124 {
 125
 126         struct drm_device *dev = qdev->ddev;
 127         while (qxl_display_copy_rom_client_monitors_config(qdev)) {
 128                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
 129                                  " retrying\n");
 130         }
 131
 132         drm_modeset_lock_all(dev);
 133         qxl_update_offset_props(qdev);
 134         drm_modeset_unlock_all(dev);
 135         if (!drm_helper_hpd_irq_event(qdev->ddev)) {
 136                 /* notify that the monitor configuration changed, to
 137                    adjust at the arbitrary resolution */
 138                 drm_kms_helper_hotplug_event(qdev->ddev);
 139         }
 140 }
 141
 142 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 143                                          unsigned *pwidth,
 144                                          unsigned *pheight)
 145 {
 146         struct drm_device *dev = connector->dev;
 147         struct qxl_device *qdev = dev->dev_private;
 148         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 149         int h = output->index;
 150         struct drm_display_mode *mode = NULL;
 151         struct qxl_head *head;
 152
 153         if (!qdev->client_monitors_config)
 154                 return 0;
 155         head = &qdev->client_monitors_config->heads[h];
 156
 157         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 158                             false);
 159         mode->type |= DRM_MODE_TYPE_PREFERRED;
 160         *pwidth = head->width;
 161         *pheight = head->height;
 162         drm_mode_probed_add(connector, mode);
 163         /* remember the last custom size for mode validation */
 164         qdev->monitors_config_width = mode->hdisplay;
 165         qdev->monitors_config_height = mode->vdisplay;
 166         return 1;
 167 }
 168
 169 static struct mode_size {
 170         int w;
 171         int h;
 172 } common_modes[] = {
 173         { 640,  480},
 174         { 720,  480},
 175         { 800,  600},
 176         { 848,  480},
 177         {1024,  768},
 178         {1152,  768},
 179         {1280,  720},
 180         {1280,  800},
 181         {1280,  854},
 182         {1280,  960},
 183         {1280, 1024},
 184         {1440,  900},
 185         {1400, 1050},
 186         {1680, 1050},
 187         {1600, 1200},
 188         {1920, 1080},
 189         {1920, 1200}
 190 };
 191
 192 static int qxl_add_common_modes(struct drm_connector *connector,
 193                                 unsigned pwidth,
 194                                 unsigned pheight)
 195 {
 196         struct drm_device *dev = connector->dev;
 197         struct drm_display_mode *mode = NULL;
 198         int i;
 199         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 200                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 201                                     60, false, false, false);
 202                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 203                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 204                 drm_mode_probed_add(connector, mode);
 205         }
 206         return i - 1;
 207 }
 208
 209 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 210 {
 211         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 212
 213         drm_crtc_cleanup(crtc);
 214         kfree(qxl_crtc);
 215 }
 216
 217 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 218                               struct drm_framebuffer *fb,
 219                               struct drm_pending_vblank_event *event,
 220                               uint32_t page_flip_flags)
 221 {
 222         struct drm_device *dev = crtc->dev;
 223         struct qxl_device *qdev = dev->dev_private;
 224         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
 225         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
 226         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
 227         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
 228         unsigned long flags;
 229         struct drm_clip_rect norect = {
 230             .x1 = 0,
 231             .y1 = 0,
 232             .x2 = fb->width,
 233             .y2 = fb->height
 234         };
 235         int inc = 1;
 236         int one_clip_rect = 1;
 237         int ret = 0;
 238
 239         crtc->primary->fb = fb;
 240         bo_old->is_primary = false;
 241         bo->is_primary = true;
 242
 243         ret = qxl_bo_reserve(bo, false);
 244         if (ret)
 245                 return ret;
 246         ret = qxl_bo_pin(bo, bo->type, NULL);
 247         qxl_bo_unreserve(bo);
 248         if (ret)
 249                 return ret;
 250
 251         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 252                           &norect, one_clip_rect, inc);
 253
 254         drm_crtc_vblank_get(crtc);
 255
 256         if (event) {
 257                 spin_lock_irqsave(&dev->event_lock, flags);
 258                 drm_crtc_send_vblank_event(crtc, event);
 259                 spin_unlock_irqrestore(&dev->event_lock, flags);
 260         }
 261         drm_crtc_vblank_put(crtc);
 262
 263         ret = qxl_bo_reserve(bo, false);
 264         if (!ret) {
 265                 qxl_bo_unpin(bo);
 266                 qxl_bo_unreserve(bo);
 267         }
 268
 269         return 0;
 270 }
 271
 272 static int
 273 qxl_hide_cursor(struct qxl_device *qdev)
 274 {
 275         struct qxl_release *release;
 276         struct qxl_cursor_cmd *cmd;
 277         int ret;
 278
 279         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 280                                          &release, NULL);
 281         if (ret)
 282                 return ret;
 283
 284         ret = qxl_release_reserve_list(release, true);
 285         if (ret) {
 286                 qxl_release_free(qdev, release);
 287                 return ret;
 288         }
 289
 290         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 291         cmd->type = QXL_CURSOR_HIDE;
 292         qxl_release_unmap(qdev, release, &cmd->release_info);
 293
 294         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 295         qxl_release_fence_buffer_objects(release);
 296         return 0;
 297 }
 298
 299 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 300                                 struct drm_file *file_priv,
 301                                 uint32_t handle,
 302                                 uint32_t width,
 303                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 304 {
 305         struct drm_device *dev = crtc->dev;
 306         struct qxl_device *qdev = dev->dev_private;
 307         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 308         struct drm_gem_object *obj;
 309         struct qxl_cursor *cursor;
 310         struct qxl_cursor_cmd *cmd;
 311         struct qxl_bo *cursor_bo, *user_bo;
 312         struct qxl_release *release;
 313         void *user_ptr;
 314
 315         int size = 64*64*4;
 316         int ret = 0;
 317         if (!handle)
 318                 return qxl_hide_cursor(qdev);
 319
 320         obj = drm_gem_object_lookup(file_priv, handle);
 321         if (!obj) {
 322                 DRM_ERROR("cannot find cursor object\n");
 323                 return -ENOENT;
 324         }
 325
 326         user_bo = gem_to_qxl_bo(obj);
 327
 328         ret = qxl_bo_reserve(user_bo, false);
 329         if (ret)
 330                 goto out_unref;
 331
 332         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 333         qxl_bo_unreserve(user_bo);
 334         if (ret)
 335                 goto out_unref;
 336
 337         ret = qxl_bo_kmap(user_bo, &user_ptr);
 338         if (ret)
 339                 goto out_unpin;
 340
 341         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 342                                          QXL_RELEASE_CURSOR_CMD,
 343                                          &release, NULL);
 344         if (ret)
 345                 goto out_kunmap;
 346
 347         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 348                            &cursor_bo);
 349         if (ret)
 350                 goto out_free_release;
 351
 352         ret = qxl_release_reserve_list(release, false);
 353         if (ret)
 354                 goto out_free_bo;
 355
 356         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 357         if (ret)
 358                 goto out_backoff;
 359
 360         cursor->header.unique = 0;
 361         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 362         cursor->header.width = 64;
 363         cursor->header.height = 64;
 364         cursor->header.hot_spot_x = hot_x;
 365         cursor->header.hot_spot_y = hot_y;
 366         cursor->data_size = size;
 367         cursor->chunk.next_chunk = 0;
 368         cursor->chunk.prev_chunk = 0;
 369         cursor->chunk.data_size = size;
 370
 371         memcpy(cursor->chunk.data, user_ptr, size);
 372
 373         qxl_bo_kunmap(cursor_bo);
 374
 375         qxl_bo_kunmap(user_bo);
 376
 377         qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
 378         qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
 379         qcrtc->hot_spot_x = hot_x;
 380         qcrtc->hot_spot_y = hot_y;
 381
 382         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 383         cmd->type = QXL_CURSOR_SET;
 384         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 385         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 386
 387         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 388
 389         cmd->u.set.visible = 1;
 390         qxl_release_unmap(qdev, release, &cmd->release_info);
 391
 392         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 393         qxl_release_fence_buffer_objects(release);
 394
 395         /* finish with the userspace bo */
 396         ret = qxl_bo_reserve(user_bo, false);
 397         if (!ret) {
 398                 qxl_bo_unpin(user_bo);
 399                 qxl_bo_unreserve(user_bo);
 400         }
 401         drm_gem_object_unreference_unlocked(obj);
 402
 403         qxl_bo_unref(&cursor_bo);
 404
 405         return ret;
 406
 407 out_backoff:
 408         qxl_release_backoff_reserve_list(release);
 409 out_free_bo:
 410         qxl_bo_unref(&cursor_bo);
 411 out_free_release:
 412         qxl_release_free(qdev, release);
 413 out_kunmap:
 414         qxl_bo_kunmap(user_bo);
 415 out_unpin:
 416         qxl_bo_unpin(user_bo);
 417 out_unref:
 418         drm_gem_object_unreference_unlocked(obj);
 419         return ret;
 420 }
 421
 422 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 423                                 int x, int y)
 424 {
 425         struct drm_device *dev = crtc->dev;
 426         struct qxl_device *qdev = dev->dev_private;
 427         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 428         struct qxl_release *release;
 429         struct qxl_cursor_cmd *cmd;
 430         int ret;
 431
 432         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 433                                    &release, NULL);
 434         if (ret)
 435                 return ret;
 436
 437         ret = qxl_release_reserve_list(release, true);
 438         if (ret) {
 439                 qxl_release_free(qdev, release);
 440                 return ret;
 441         }
 442
 443         qcrtc->cur_x = x;
 444         qcrtc->cur_y = y;
 445
 446         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 447         cmd->type = QXL_CURSOR_MOVE;
 448         cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 449         cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 450         qxl_release_unmap(qdev, release, &cmd->release_info);
 451
 452         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 453         qxl_release_fence_buffer_objects(release);
 454
 455         return 0;
 456 }
 457
 458
 459 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 460         .cursor_set2 = qxl_crtc_cursor_set2,
 461         .cursor_move = qxl_crtc_cursor_move,
 462         .set_config = drm_crtc_helper_set_config,
 463         .destroy = qxl_crtc_destroy,
 464         .page_flip = qxl_crtc_page_flip,
 465 };
 466
 467 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 468 {
 469         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 470
 471         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 472         drm_framebuffer_cleanup(fb);
 473         kfree(qxl_fb);
 474 }
 475
 476 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 477                                          struct drm_file *file_priv,
 478                                          unsigned flags, unsigned color,
 479                                          struct drm_clip_rect *clips,
 480                                          unsigned num_clips)
 481 {
 482         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 483         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 484         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 485         struct drm_clip_rect norect;
 486         struct qxl_bo *qobj;
 487         int inc = 1;
 488
 489         drm_modeset_lock_all(fb->dev);
 490
 491         qobj = gem_to_qxl_bo(qxl_fb->obj);
 492         /* if we aren't primary surface ignore this */
 493         if (!qobj->is_primary) {
 494                 drm_modeset_unlock_all(fb->dev);
 495                 return 0;
 496         }
 497
 498         if (!num_clips) {
 499                 num_clips = 1;
 500                 clips = &norect;
 501                 norect.x1 = norect.y1 = 0;
 502                 norect.x2 = fb->width;
 503                 norect.y2 = fb->height;
 504         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 505                 num_clips /= 2;
 506                 inc = 2; /* skip source rects */
 507         }
 508
 509         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 510                           clips, num_clips, inc);
 511
 512         drm_modeset_unlock_all(fb->dev);
 513
 514         return 0;
 515 }
 516
 517 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 518         .destroy = qxl_user_framebuffer_destroy,
 519         .dirty = qxl_framebuffer_surface_dirty,
 520 /*      TODO?
 521  *      .create_handle = qxl_user_framebuffer_create_handle, */
 522 };
 523
 524 int
 525 qxl_framebuffer_init(struct drm_device *dev,
 526                      struct qxl_framebuffer *qfb,
 527                      const struct drm_mode_fb_cmd2 *mode_cmd,
 528                      struct drm_gem_object *obj,
 529                      const struct drm_framebuffer_funcs *funcs)
 530 {
 531         int ret;
 532
 533         qfb->obj = obj;
 534         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 535         if (ret) {
 536                 qfb->obj = NULL;
 537                 return ret;
 538         }
 539         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 540         return 0;
 541 }
 542
 543 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 544 {
 545 }
 546
 547 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 548                                   const struct drm_display_mode *mode,
 549                                   struct drm_display_mode *adjusted_mode)
 550 {
 551         struct drm_device *dev = crtc->dev;
 552         struct qxl_device *qdev = dev->dev_private;
 553
 554         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 555                    __func__,
 556                    mode->hdisplay, mode->vdisplay,
 557                    adjusted_mode->hdisplay,
 558                    adjusted_mode->vdisplay);
 559         return true;
 560 }
 561
 562 void
 563 qxl_send_monitors_config(struct qxl_device *qdev)
 564 {
 565         int i;
 566
 567         BUG_ON(!qdev->ram_header->monitors_config);
 568
 569         if (qdev->monitors_config->count == 0) {
 570                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 571                 return;
 572         }
 573         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 574                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 575
 576                 if (head->y > 8192 || head->x > 8192 ||
 577                     head->width > 8192 || head->height > 8192) {
 578                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 579                                   i, head->width, head->height,
 580                                   head->x, head->y);
 581                         return;
 582                 }
 583         }
 584         qxl_io_monitors_config(qdev);
 585 }
 586
 587 static void qxl_monitors_config_set(struct qxl_device *qdev,
 588                                     int index,
 589                                     unsigned x, unsigned y,
 590                                     unsigned width, unsigned height,
 591                                     unsigned surf_id)
 592 {
 593         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 594         qdev->monitors_config->heads[index].x = x;
 595         qdev->monitors_config->heads[index].y = y;
 596         qdev->monitors_config->heads[index].width = width;
 597         qdev->monitors_config->heads[index].height = height;
 598         qdev->monitors_config->heads[index].surface_id = surf_id;
 599
 600 }
 601
 602 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 603                                struct drm_display_mode *mode,
 604                                struct drm_display_mode *adjusted_mode,
 605                                int x, int y,
 606                                struct drm_framebuffer *old_fb)
 607 {
 608         struct drm_device *dev = crtc->dev;
 609         struct qxl_device *qdev = dev->dev_private;
 610         struct qxl_framebuffer *qfb;
 611         struct qxl_bo *bo, *old_bo = NULL;
 612         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 613         bool recreate_primary = false;
 614         int ret;
 615         int surf_id;
 616         if (!crtc->primary->fb) {
 617                 DRM_DEBUG_KMS("No FB bound\n");
 618                 return 0;
 619         }
 620
 621         if (old_fb) {
 622                 qfb = to_qxl_framebuffer(old_fb);
 623                 old_bo = gem_to_qxl_bo(qfb->obj);
 624         }
 625         qfb = to_qxl_framebuffer(crtc->primary->fb);
 626         bo = gem_to_qxl_bo(qfb->obj);
 627         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 628                   x, y,
 629                   mode->hdisplay, mode->vdisplay,
 630                   adjusted_mode->hdisplay,
 631                   adjusted_mode->vdisplay);
 632
 633         if (bo->is_primary == false)
 634                 recreate_primary = true;
 635
 636         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 637                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 638                 return -EINVAL;
 639         }
 640
 641         ret = qxl_bo_reserve(bo, false);
 642         if (ret != 0)
 643                 return ret;
 644         ret = qxl_bo_pin(bo, bo->type, NULL);
 645         if (ret != 0) {
 646                 qxl_bo_unreserve(bo);
 647                 return -EINVAL;
 648         }
 649         qxl_bo_unreserve(bo);
 650         if (recreate_primary) {
 651                 qxl_io_destroy_primary(qdev);
 652                 qxl_io_log(qdev,
 653                            "recreate primary: %dx%d,%d,%d\n",
 654                            bo->surf.width, bo->surf.height,
 655                            bo->surf.stride, bo->surf.format);
 656                 qxl_io_create_primary(qdev, 0, bo);
 657                 bo->is_primary = true;
 658         }
 659
 660         if (bo->is_primary) {
 661                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 662                 surf_id = 0;
 663         } else {
 664                 surf_id = bo->surface_id;
 665         }
 666
 667         if (old_bo && old_bo != bo) {
 668                 old_bo->is_primary = false;
 669                 ret = qxl_bo_reserve(old_bo, false);
 670                 qxl_bo_unpin(old_bo);
 671                 qxl_bo_unreserve(old_bo);
 672         }
 673
 674         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 675                                 mode->hdisplay,
 676                                 mode->vdisplay, surf_id);
 677         return 0;
 678 }
 679
 680 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 681 {
 682         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 683                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 684                   crtc->x, crtc->y, crtc->enabled);
 685 }
 686
 687 static void qxl_crtc_commit(struct drm_crtc *crtc)
 688 {
 689         DRM_DEBUG("\n");
 690 }
 691
 692 static void qxl_crtc_disable(struct drm_crtc *crtc)
 693 {
 694         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 695         struct drm_device *dev = crtc->dev;
 696         struct qxl_device *qdev = dev->dev_private;
 697         if (crtc->primary->fb) {
 698                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 699                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 700                 int ret;
 701                 ret = qxl_bo_reserve(bo, false);
 702                 qxl_bo_unpin(bo);
 703                 qxl_bo_unreserve(bo);
 704                 crtc->primary->fb = NULL;
 705         }
 706
 707         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 708
 709         qxl_send_monitors_config(qdev);
 710 }
 711
 712 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 713         .dpms = qxl_crtc_dpms,
 714         .disable = qxl_crtc_disable,
 715         .mode_fixup = qxl_crtc_mode_fixup,
 716         .mode_set = qxl_crtc_mode_set,
 717         .prepare = qxl_crtc_prepare,
 718         .commit = qxl_crtc_commit,
 719 };
 720
 721 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 722 {
 723         struct qxl_crtc *qxl_crtc;
 724
 725         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 726         if (!qxl_crtc)
 727                 return -ENOMEM;
 728
 729         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 730         qxl_crtc->index = crtc_id;
 731         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 732         return 0;
 733 }
 734
 735 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 736 {
 737         DRM_DEBUG("\n");
 738 }
 739
 740 static void qxl_enc_prepare(struct drm_encoder *encoder)
 741 {
 742         DRM_DEBUG("\n");
 743 }
 744
 745 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 746                 struct drm_encoder *encoder)
 747 {
 748         int i;
 749         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 750         struct qxl_head *head;
 751         struct drm_display_mode *mode;
 752
 753         BUG_ON(!encoder);
 754         /* TODO: ugly, do better */
 755         i = output->index;
 756         if (!qdev->monitors_config ||
 757             qdev->monitors_config->max_allowed <= i) {
 758                 DRM_ERROR(
 759                 "head number too large or missing monitors config: %p, %d",
 760                 qdev->monitors_config,
 761                 qdev->monitors_config ?
 762                         qdev->monitors_config->max_allowed : -1);
 763                 return;
 764         }
 765         if (!encoder->crtc) {
 766                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 767                 return;
 768         }
 769         if (i != 0)
 770                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 771         head = &qdev->monitors_config->heads[i];
 772         head->id = i;
 773         if (encoder->crtc->enabled) {
 774                 mode = &encoder->crtc->mode;
 775                 head->width = mode->hdisplay;
 776                 head->height = mode->vdisplay;
 777                 head->x = encoder->crtc->x;
 778                 head->y = encoder->crtc->y;
 779                 if (qdev->monitors_config->count < i + 1)
 780                         qdev->monitors_config->count = i + 1;
 781         } else {
 782                 head->width = 0;
 783                 head->height = 0;
 784                 head->x = 0;
 785                 head->y = 0;
 786         }
 787         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 788                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 789         head->flags = 0;
 790         /* TODO - somewhere else to call this for multiple monitors
 791          * (config_commit?) */
 792         qxl_send_monitors_config(qdev);
 793 }
 794
 795 static void qxl_enc_commit(struct drm_encoder *encoder)
 796 {
 797         struct qxl_device *qdev = encoder->dev->dev_private;
 798
 799         qxl_write_monitors_config_for_encoder(qdev, encoder);
 800         DRM_DEBUG("\n");
 801 }
 802
 803 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 804                                 struct drm_display_mode *mode,
 805                                 struct drm_display_mode *adjusted_mode)
 806 {
 807         DRM_DEBUG("\n");
 808 }
 809
 810 static int qxl_conn_get_modes(struct drm_connector *connector)
 811 {
 812         int ret = 0;
 813         struct qxl_device *qdev = connector->dev->dev_private;
 814         unsigned pwidth = 1024;
 815         unsigned pheight = 768;
 816
 817         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 818         /* TODO: what should we do here? only show the configured modes for the
 819          * device, or allow the full list, or both? */
 820         if (qdev->monitors_config && qdev->monitors_config->count) {
 821                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 822                 if (ret < 0)
 823                         return ret;
 824         }
 825         ret += qxl_add_common_modes(connector, pwidth, pheight);
 826         return ret;
 827 }
 828
 829 static int qxl_conn_mode_valid(struct drm_connector *connector,
 830                                struct drm_display_mode *mode)
 831 {
 832         struct drm_device *ddev = connector->dev;
 833         struct qxl_device *qdev = ddev->dev_private;
 834         int i;
 835
 836         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 837          * TODO: check that the mode fits in the framebuffer */
 838
 839         if(qdev->monitors_config_width == mode->hdisplay &&
 840            qdev->monitors_config_height == mode->vdisplay)
 841                 return MODE_OK;
 842
 843         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 844                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 845                         return MODE_OK;
 846         }
 847         return MODE_BAD;
 848 }
 849
 850 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 851 {
 852         struct qxl_output *qxl_output =
 853                 drm_connector_to_qxl_output(connector);
 854
 855         DRM_DEBUG("\n");
 856         return &qxl_output->enc;
 857 }
 858
 859
 860 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 861         .dpms = qxl_enc_dpms,
 862         .prepare = qxl_enc_prepare,
 863         .mode_set = qxl_enc_mode_set,
 864         .commit = qxl_enc_commit,
 865 };
 866
 867 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 868         .get_modes = qxl_conn_get_modes,
 869         .mode_valid = qxl_conn_mode_valid,
 870         .best_encoder = qxl_best_encoder,
 871 };
 872
 873 static enum drm_connector_status qxl_conn_detect(
 874                         struct drm_connector *connector,
 875                         bool force)
 876 {
 877         struct qxl_output *output =
 878                 drm_connector_to_qxl_output(connector);
 879         struct drm_device *ddev = connector->dev;
 880         struct qxl_device *qdev = ddev->dev_private;
 881         bool connected = false;
 882
 883         /* The first monitor is always connected */
 884         if (!qdev->client_monitors_config) {
 885                 if (output->index == 0)
 886                         connected = true;
 887         } else
 888                 connected = qdev->client_monitors_config->count > output->index &&
 889                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 890
 891         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 892         if (!connected)
 893                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 894
 895         return connected ? connector_status_connected
 896                          : connector_status_disconnected;
 897 }
 898
 899 static int qxl_conn_set_property(struct drm_connector *connector,
 900                                    struct drm_property *property,
 901                                    uint64_t value)
 902 {
 903         DRM_DEBUG("\n");
 904         return 0;
 905 }
 906
 907 static void qxl_conn_destroy(struct drm_connector *connector)
 908 {
 909         struct qxl_output *qxl_output =
 910                 drm_connector_to_qxl_output(connector);
 911
 912         drm_connector_unregister(connector);
 913         drm_connector_cleanup(connector);
 914         kfree(qxl_output);
 915 }
 916
 917 static const struct drm_connector_funcs qxl_connector_funcs = {
 918         .dpms = drm_helper_connector_dpms,
 919         .detect = qxl_conn_detect,
 920         .fill_modes = drm_helper_probe_single_connector_modes,
 921         .set_property = qxl_conn_set_property,
 922         .destroy = qxl_conn_destroy,
 923 };
 924
 925 static void qxl_enc_destroy(struct drm_encoder *encoder)
 926 {
 927         drm_encoder_cleanup(encoder);
 928 }
 929
 930 static const struct drm_encoder_funcs qxl_enc_funcs = {
 931         .destroy = qxl_enc_destroy,
 932 };
 933
 934 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 935 {
 936         if (qdev->hotplug_mode_update_property)
 937                 return 0;
 938
 939         qdev->hotplug_mode_update_property =
 940                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 941                                           "hotplug_mode_update", 0, 1);
 942
 943         return 0;
 944 }
 945
 946 static int qdev_output_init(struct drm_device *dev, int num_output)
 947 {
 948         struct qxl_device *qdev = dev->dev_private;
 949         struct qxl_output *qxl_output;
 950         struct drm_connector *connector;
 951         struct drm_encoder *encoder;
 952
 953         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 954         if (!qxl_output)
 955                 return -ENOMEM;
 956
 957         qxl_output->index = num_output;
 958
 959         connector = &qxl_output->base;
 960         encoder = &qxl_output->enc;
 961         drm_connector_init(dev, &qxl_output->base,
 962                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 963
 964         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 965                          DRM_MODE_ENCODER_VIRTUAL, NULL);
 966
 967         /* we get HPD via client monitors config */
 968         connector->polled = DRM_CONNECTOR_POLL_HPD;
 969         encoder->possible_crtcs = 1 << num_output;
 970         drm_mode_connector_attach_encoder(&qxl_output->base,
 971                                           &qxl_output->enc);
 972         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 973         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 974
 975         drm_object_attach_property(&connector->base,
 976                                    qdev->hotplug_mode_update_property, 0);
 977         drm_object_attach_property(&connector->base,
 978                                    dev->mode_config.suggested_x_property, 0);
 979         drm_object_attach_property(&connector->base,
 980                                    dev->mode_config.suggested_y_property, 0);
 981         drm_connector_register(connector);
 982         return 0;
 983 }
 984
 985 static struct drm_framebuffer *
 986 qxl_user_framebuffer_create(struct drm_device *dev,
 987                             struct drm_file *file_priv,
 988                             const struct drm_mode_fb_cmd2 *mode_cmd)
 989 {
 990         struct drm_gem_object *obj;
 991         struct qxl_framebuffer *qxl_fb;
 992         int ret;
 993
 994         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 995         if (!obj)
 996                 return NULL;
 997
 998         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 999         if (qxl_fb == NULL)
1000                 return NULL;
1001
1002         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1003         if (ret) {
1004                 kfree(qxl_fb);
1005                 drm_gem_object_unreference_unlocked(obj);
1006                 return NULL;
1007         }
1008
1009         return &qxl_fb->base;
1010 }
1011
1012 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1013         .fb_create = qxl_user_framebuffer_create,
1014 };
1015
1016 int qxl_create_monitors_object(struct qxl_device *qdev)
1017 {
1018         int ret;
1019         struct drm_gem_object *gobj;
1020         int max_allowed = qxl_num_crtc;
1021         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1022                 max_allowed * sizeof(struct qxl_head);
1023
1024         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1025                                     QXL_GEM_DOMAIN_VRAM,
1026                                     false, false, NULL, &gobj);
1027         if (ret) {
1028                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1029                 return -ENOMEM;
1030         }
1031         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1032
1033         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1034         if (ret)
1035                 return ret;
1036
1037         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1038         if (ret) {
1039                 qxl_bo_unreserve(qdev->monitors_config_bo);
1040                 return ret;
1041         }
1042
1043         qxl_bo_unreserve(qdev->monitors_config_bo);
1044
1045         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1046
1047         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1048         qdev->ram_header->monitors_config =
1049                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1050
1051         memset(qdev->monitors_config, 0, monitors_config_size);
1052         qdev->monitors_config->max_allowed = max_allowed;
1053         return 0;
1054 }
1055
1056 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1057 {
1058         int ret;
1059
1060         qdev->monitors_config = NULL;
1061         qdev->ram_header->monitors_config = 0;
1062
1063         qxl_bo_kunmap(qdev->monitors_config_bo);
1064         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1065         if (ret)
1066                 return ret;
1067
1068         qxl_bo_unpin(qdev->monitors_config_bo);
1069         qxl_bo_unreserve(qdev->monitors_config_bo);
1070
1071         qxl_bo_unref(&qdev->monitors_config_bo);
1072         return 0;
1073 }
1074
1075 int qxl_modeset_init(struct qxl_device *qdev)
1076 {
1077         int i;
1078         int ret;
1079
1080         drm_mode_config_init(qdev->ddev);
1081
1082         ret = qxl_create_monitors_object(qdev);
1083         if (ret)
1084                 return ret;
1085
1086         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1087
1088         /* modes will be validated against the framebuffer size */
1089         qdev->ddev->mode_config.min_width = 320;
1090         qdev->ddev->mode_config.min_height = 200;
1091         qdev->ddev->mode_config.max_width = 8192;
1092         qdev->ddev->mode_config.max_height = 8192;
1093
1094         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1095
1096         drm_mode_create_suggested_offset_properties(qdev->ddev);
1097         qxl_mode_create_hotplug_mode_update_property(qdev);
1098
1099         for (i = 0 ; i < qxl_num_crtc; ++i) {
1100                 qdev_crtc_init(qdev->ddev, i);
1101                 qdev_output_init(qdev->ddev, i);
1102         }
1103
1104         qdev->mode_info.mode_config_initialized = true;
1105
1106         /* primary surface must be created by this point, to allow
1107          * issuing command queue commands and having them read by
1108          * spice server. */
1109         qxl_fbdev_init(qdev);
1110         return 0;
1111 }
1112
1113 void qxl_modeset_fini(struct qxl_device *qdev)
1114 {
1115         qxl_fbdev_fini(qdev);
1116
1117         qxl_destroy_monitors_object(qdev);
1118         if (qdev->mode_info.mode_config_initialized) {
1119                 drm_mode_config_cleanup(qdev->ddev);
1120                 qdev->mode_info.mode_config_initialized = false;
1121         }
1122 }