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 static 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 enum {
  61         MONITORS_CONFIG_MODIFIED,
  62         MONITORS_CONFIG_UNCHANGED,
  63         MONITORS_CONFIG_BAD_CRC,
  64 };
  65
  66 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  67 {
  68         int i;
  69         int num_monitors;
  70         uint32_t crc;
  71         int status = MONITORS_CONFIG_UNCHANGED;
  72
  73         num_monitors = qdev->rom->client_monitors_config.count;
  74         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  75                   sizeof(qdev->rom->client_monitors_config));
  76         if (crc != qdev->rom->client_monitors_config_crc) {
  77                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
  78                            sizeof(qdev->rom->client_monitors_config),
  79                            qdev->rom->client_monitors_config_crc);
  80                 return MONITORS_CONFIG_BAD_CRC;
  81         }
  82         if (num_monitors > qdev->monitors_config->max_allowed) {
  83                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  84                               qdev->monitors_config->max_allowed, num_monitors);
  85                 num_monitors = qdev->monitors_config->max_allowed;
  86         } else {
  87                 num_monitors = qdev->rom->client_monitors_config.count;
  88         }
  89         if (qdev->client_monitors_config
  90               && (num_monitors != qdev->client_monitors_config->count)) {
  91                 status = MONITORS_CONFIG_MODIFIED;
  92         }
  93         qxl_alloc_client_monitors_config(qdev, num_monitors);
  94         /* we copy max from the client but it isn't used */
  95         qdev->client_monitors_config->max_allowed =
  96                                 qdev->monitors_config->max_allowed;
  97         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
  98                 struct qxl_urect *c_rect =
  99                         &qdev->rom->client_monitors_config.heads[i];
 100                 struct qxl_head *client_head =
 101                         &qdev->client_monitors_config->heads[i];
 102                 if (client_head->x != c_rect->left) {
 103                         client_head->x = c_rect->left;
 104                         status = MONITORS_CONFIG_MODIFIED;
 105                 }
 106                 if (client_head->y != c_rect->top) {
 107                         client_head->y = c_rect->top;
 108                         status = MONITORS_CONFIG_MODIFIED;
 109                 }
 110                 if (client_head->width != c_rect->right - c_rect->left) {
 111                         client_head->width = c_rect->right - c_rect->left;
 112                         status = MONITORS_CONFIG_MODIFIED;
 113                 }
 114                 if (client_head->height != c_rect->bottom - c_rect->top) {
 115                         client_head->height = c_rect->bottom - c_rect->top;
 116                         status = MONITORS_CONFIG_MODIFIED;
 117                 }
 118                 if (client_head->surface_id != 0) {
 119                         client_head->surface_id = 0;
 120                         status = MONITORS_CONFIG_MODIFIED;
 121                 }
 122                 if (client_head->id != i) {
 123                         client_head->id = i;
 124                         status = MONITORS_CONFIG_MODIFIED;
 125                 }
 126                 if (client_head->flags != 0) {
 127                         client_head->flags = 0;
 128                         status = MONITORS_CONFIG_MODIFIED;
 129                 }
 130                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 131                           client_head->x, client_head->y);
 132         }
 133
 134         return status;
 135 }
 136
 137 static void qxl_update_offset_props(struct qxl_device *qdev)
 138 {
 139         struct drm_device *dev = qdev->ddev;
 140         struct drm_connector *connector;
 141         struct qxl_output *output;
 142         struct qxl_head *head;
 143
 144         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 145                 output = drm_connector_to_qxl_output(connector);
 146
 147                 head = &qdev->client_monitors_config->heads[output->index];
 148
 149                 drm_object_property_set_value(&connector->base,
 150                         dev->mode_config.suggested_x_property, head->x);
 151                 drm_object_property_set_value(&connector->base,
 152                         dev->mode_config.suggested_y_property, head->y);
 153         }
 154 }
 155
 156 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 157 {
 158
 159         struct drm_device *dev = qdev->ddev;
 160         int status;
 161
 162         status = qxl_display_copy_rom_client_monitors_config(qdev);
 163         while (status == MONITORS_CONFIG_BAD_CRC) {
 164                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
 165                                  " retrying\n");
 166                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 167         }
 168         if (status == MONITORS_CONFIG_UNCHANGED) {
 169                 qxl_io_log(qdev, "config unchanged\n");
 170                 DRM_DEBUG("ignoring unchanged client monitors config");
 171                 return;
 172         }
 173
 174         drm_modeset_lock_all(dev);
 175         qxl_update_offset_props(qdev);
 176         drm_modeset_unlock_all(dev);
 177         if (!drm_helper_hpd_irq_event(qdev->ddev)) {
 178                 /* notify that the monitor configuration changed, to
 179                    adjust at the arbitrary resolution */
 180                 drm_kms_helper_hotplug_event(qdev->ddev);
 181         }
 182 }
 183
 184 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 185                                          unsigned *pwidth,
 186                                          unsigned *pheight)
 187 {
 188         struct drm_device *dev = connector->dev;
 189         struct qxl_device *qdev = dev->dev_private;
 190         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 191         int h = output->index;
 192         struct drm_display_mode *mode = NULL;
 193         struct qxl_head *head;
 194
 195         if (!qdev->client_monitors_config)
 196                 return 0;
 197         head = &qdev->client_monitors_config->heads[h];
 198
 199         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 200                             false);
 201         mode->type |= DRM_MODE_TYPE_PREFERRED;
 202         mode->hdisplay = head->width;
 203         mode->vdisplay = head->height;
 204         drm_mode_set_name(mode);
 205         *pwidth = head->width;
 206         *pheight = head->height;
 207         drm_mode_probed_add(connector, mode);
 208         /* remember the last custom size for mode validation */
 209         qdev->monitors_config_width = mode->hdisplay;
 210         qdev->monitors_config_height = mode->vdisplay;
 211         return 1;
 212 }
 213
 214 static struct mode_size {
 215         int w;
 216         int h;
 217 } common_modes[] = {
 218         { 640,  480},
 219         { 720,  480},
 220         { 800,  600},
 221         { 848,  480},
 222         {1024,  768},
 223         {1152,  768},
 224         {1280,  720},
 225         {1280,  800},
 226         {1280,  854},
 227         {1280,  960},
 228         {1280, 1024},
 229         {1440,  900},
 230         {1400, 1050},
 231         {1680, 1050},
 232         {1600, 1200},
 233         {1920, 1080},
 234         {1920, 1200}
 235 };
 236
 237 static int qxl_add_common_modes(struct drm_connector *connector,
 238                                 unsigned pwidth,
 239                                 unsigned pheight)
 240 {
 241         struct drm_device *dev = connector->dev;
 242         struct drm_display_mode *mode = NULL;
 243         int i;
 244         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 245                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 246                                     60, false, false, false);
 247                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 248                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 249                 drm_mode_probed_add(connector, mode);
 250         }
 251         return i - 1;
 252 }
 253
 254 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 255 {
 256         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 257
 258         drm_crtc_cleanup(crtc);
 259         qxl_bo_unref(&qxl_crtc->cursor_bo);
 260         kfree(qxl_crtc);
 261 }
 262
 263 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 264                               struct drm_framebuffer *fb,
 265                               struct drm_pending_vblank_event *event,
 266                               uint32_t page_flip_flags)
 267 {
 268         struct drm_device *dev = crtc->dev;
 269         struct qxl_device *qdev = dev->dev_private;
 270         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
 271         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
 272         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
 273         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
 274         unsigned long flags;
 275         struct drm_clip_rect norect = {
 276             .x1 = 0,
 277             .y1 = 0,
 278             .x2 = fb->width,
 279             .y2 = fb->height
 280         };
 281         int inc = 1;
 282         int one_clip_rect = 1;
 283         int ret = 0;
 284
 285         crtc->primary->fb = fb;
 286         bo_old->is_primary = false;
 287         bo->is_primary = true;
 288
 289         ret = qxl_bo_reserve(bo, false);
 290         if (ret)
 291                 return ret;
 292         ret = qxl_bo_pin(bo, bo->type, NULL);
 293         qxl_bo_unreserve(bo);
 294         if (ret)
 295                 return ret;
 296
 297         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 298                           &norect, one_clip_rect, inc);
 299
 300         drm_crtc_vblank_get(crtc);
 301
 302         if (event) {
 303                 spin_lock_irqsave(&dev->event_lock, flags);
 304                 drm_crtc_send_vblank_event(crtc, event);
 305                 spin_unlock_irqrestore(&dev->event_lock, flags);
 306         }
 307         drm_crtc_vblank_put(crtc);
 308
 309         ret = qxl_bo_reserve(bo, false);
 310         if (!ret) {
 311                 qxl_bo_unpin(bo);
 312                 qxl_bo_unreserve(bo);
 313         }
 314
 315         return 0;
 316 }
 317
 318 static int
 319 qxl_hide_cursor(struct qxl_device *qdev)
 320 {
 321         struct qxl_release *release;
 322         struct qxl_cursor_cmd *cmd;
 323         int ret;
 324
 325         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 326                                          &release, NULL);
 327         if (ret)
 328                 return ret;
 329
 330         ret = qxl_release_reserve_list(release, true);
 331         if (ret) {
 332                 qxl_release_free(qdev, release);
 333                 return ret;
 334         }
 335
 336         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 337         cmd->type = QXL_CURSOR_HIDE;
 338         qxl_release_unmap(qdev, release, &cmd->release_info);
 339
 340         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 341         qxl_release_fence_buffer_objects(release);
 342         return 0;
 343 }
 344
 345 static int qxl_crtc_apply_cursor(struct drm_crtc *crtc)
 346 {
 347         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 348         struct drm_device *dev = crtc->dev;
 349         struct qxl_device *qdev = dev->dev_private;
 350         struct qxl_cursor_cmd *cmd;
 351         struct qxl_release *release;
 352         int ret = 0;
 353
 354         if (!qcrtc->cursor_bo)
 355                 return 0;
 356
 357         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 358                                          QXL_RELEASE_CURSOR_CMD,
 359                                          &release, NULL);
 360         if (ret)
 361                 return ret;
 362
 363         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 364         if (ret)
 365                 goto out_free_release;
 366
 367         ret = qxl_release_reserve_list(release, false);
 368         if (ret)
 369                 goto out_free_release;
 370
 371         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 372         cmd->type = QXL_CURSOR_SET;
 373         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 374         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 375
 376         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 377
 378         cmd->u.set.visible = 1;
 379         qxl_release_unmap(qdev, release, &cmd->release_info);
 380
 381         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 382         qxl_release_fence_buffer_objects(release);
 383
 384         return ret;
 385
 386 out_free_release:
 387         qxl_release_free(qdev, release);
 388         return ret;
 389 }
 390
 391 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 392                                 struct drm_file *file_priv,
 393                                 uint32_t handle,
 394                                 uint32_t width,
 395                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 396 {
 397         struct drm_device *dev = crtc->dev;
 398         struct qxl_device *qdev = dev->dev_private;
 399         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 400         struct drm_gem_object *obj;
 401         struct qxl_cursor *cursor;
 402         struct qxl_cursor_cmd *cmd;
 403         struct qxl_bo *cursor_bo, *user_bo;
 404         struct qxl_release *release;
 405         void *user_ptr;
 406
 407         int size = 64*64*4;
 408         int ret = 0;
 409         if (!handle)
 410                 return qxl_hide_cursor(qdev);
 411
 412         obj = drm_gem_object_lookup(file_priv, handle);
 413         if (!obj) {
 414                 DRM_ERROR("cannot find cursor object\n");
 415                 return -ENOENT;
 416         }
 417
 418         user_bo = gem_to_qxl_bo(obj);
 419
 420         ret = qxl_bo_reserve(user_bo, false);
 421         if (ret)
 422                 goto out_unref;
 423
 424         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 425         qxl_bo_unreserve(user_bo);
 426         if (ret)
 427                 goto out_unref;
 428
 429         ret = qxl_bo_kmap(user_bo, &user_ptr);
 430         if (ret)
 431                 goto out_unpin;
 432
 433         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 434                                          QXL_RELEASE_CURSOR_CMD,
 435                                          &release, NULL);
 436         if (ret)
 437                 goto out_kunmap;
 438
 439         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 440                            &cursor_bo);
 441         if (ret)
 442                 goto out_free_release;
 443
 444         ret = qxl_release_reserve_list(release, false);
 445         if (ret)
 446                 goto out_free_bo;
 447
 448         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 449         if (ret)
 450                 goto out_backoff;
 451
 452         cursor->header.unique = 0;
 453         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 454         cursor->header.width = 64;
 455         cursor->header.height = 64;
 456         cursor->header.hot_spot_x = hot_x;
 457         cursor->header.hot_spot_y = hot_y;
 458         cursor->data_size = size;
 459         cursor->chunk.next_chunk = 0;
 460         cursor->chunk.prev_chunk = 0;
 461         cursor->chunk.data_size = size;
 462
 463         memcpy(cursor->chunk.data, user_ptr, size);
 464
 465         qxl_bo_kunmap(cursor_bo);
 466
 467         qxl_bo_kunmap(user_bo);
 468
 469         qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
 470         qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
 471         qcrtc->hot_spot_x = hot_x;
 472         qcrtc->hot_spot_y = hot_y;
 473
 474         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 475         cmd->type = QXL_CURSOR_SET;
 476         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 477         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 478
 479         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 480
 481         cmd->u.set.visible = 1;
 482         qxl_release_unmap(qdev, release, &cmd->release_info);
 483
 484         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 485         qxl_release_fence_buffer_objects(release);
 486
 487         /* finish with the userspace bo */
 488         ret = qxl_bo_reserve(user_bo, false);
 489         if (!ret) {
 490                 qxl_bo_unpin(user_bo);
 491                 qxl_bo_unreserve(user_bo);
 492         }
 493         drm_gem_object_unreference_unlocked(obj);
 494
 495         qxl_bo_unref (&qcrtc->cursor_bo);
 496         qcrtc->cursor_bo = cursor_bo;
 497
 498         return ret;
 499
 500 out_backoff:
 501         qxl_release_backoff_reserve_list(release);
 502 out_free_bo:
 503         qxl_bo_unref(&cursor_bo);
 504 out_free_release:
 505         qxl_release_free(qdev, release);
 506 out_kunmap:
 507         qxl_bo_kunmap(user_bo);
 508 out_unpin:
 509         qxl_bo_unpin(user_bo);
 510 out_unref:
 511         drm_gem_object_unreference_unlocked(obj);
 512         return ret;
 513 }
 514
 515 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 516                                 int x, int y)
 517 {
 518         struct drm_device *dev = crtc->dev;
 519         struct qxl_device *qdev = dev->dev_private;
 520         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 521         struct qxl_release *release;
 522         struct qxl_cursor_cmd *cmd;
 523         int ret;
 524
 525         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 526                                    &release, NULL);
 527         if (ret)
 528                 return ret;
 529
 530         ret = qxl_release_reserve_list(release, true);
 531         if (ret) {
 532                 qxl_release_free(qdev, release);
 533                 return ret;
 534         }
 535
 536         qcrtc->cur_x = x;
 537         qcrtc->cur_y = y;
 538
 539         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 540         cmd->type = QXL_CURSOR_MOVE;
 541         cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 542         cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 543         qxl_release_unmap(qdev, release, &cmd->release_info);
 544
 545         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 546         qxl_release_fence_buffer_objects(release);
 547
 548         return 0;
 549 }
 550
 551
 552 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 553         .cursor_set2 = qxl_crtc_cursor_set2,
 554         .cursor_move = qxl_crtc_cursor_move,
 555         .set_config = drm_crtc_helper_set_config,
 556         .destroy = qxl_crtc_destroy,
 557         .page_flip = qxl_crtc_page_flip,
 558 };
 559
 560 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 561 {
 562         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 563
 564         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 565         drm_framebuffer_cleanup(fb);
 566         kfree(qxl_fb);
 567 }
 568
 569 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 570                                          struct drm_file *file_priv,
 571                                          unsigned flags, unsigned color,
 572                                          struct drm_clip_rect *clips,
 573                                          unsigned num_clips)
 574 {
 575         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 576         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 577         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 578         struct drm_clip_rect norect;
 579         struct qxl_bo *qobj;
 580         int inc = 1;
 581
 582         drm_modeset_lock_all(fb->dev);
 583
 584         qobj = gem_to_qxl_bo(qxl_fb->obj);
 585         /* if we aren't primary surface ignore this */
 586         if (!qobj->is_primary) {
 587                 drm_modeset_unlock_all(fb->dev);
 588                 return 0;
 589         }
 590
 591         if (!num_clips) {
 592                 num_clips = 1;
 593                 clips = &norect;
 594                 norect.x1 = norect.y1 = 0;
 595                 norect.x2 = fb->width;
 596                 norect.y2 = fb->height;
 597         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 598                 num_clips /= 2;
 599                 inc = 2; /* skip source rects */
 600         }
 601
 602         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 603                           clips, num_clips, inc);
 604
 605         drm_modeset_unlock_all(fb->dev);
 606
 607         return 0;
 608 }
 609
 610 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 611         .destroy = qxl_user_framebuffer_destroy,
 612         .dirty = qxl_framebuffer_surface_dirty,
 613 /*      TODO?
 614  *      .create_handle = qxl_user_framebuffer_create_handle, */
 615 };
 616
 617 int
 618 qxl_framebuffer_init(struct drm_device *dev,
 619                      struct qxl_framebuffer *qfb,
 620                      const struct drm_mode_fb_cmd2 *mode_cmd,
 621                      struct drm_gem_object *obj,
 622                      const struct drm_framebuffer_funcs *funcs)
 623 {
 624         int ret;
 625
 626         qfb->obj = obj;
 627         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 628         if (ret) {
 629                 qfb->obj = NULL;
 630                 return ret;
 631         }
 632         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 633         return 0;
 634 }
 635
 636 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 637 {
 638 }
 639
 640 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 641                                   const struct drm_display_mode *mode,
 642                                   struct drm_display_mode *adjusted_mode)
 643 {
 644         struct drm_device *dev = crtc->dev;
 645         struct qxl_device *qdev = dev->dev_private;
 646
 647         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 648                    __func__,
 649                    mode->hdisplay, mode->vdisplay,
 650                    adjusted_mode->hdisplay,
 651                    adjusted_mode->vdisplay);
 652         return true;
 653 }
 654
 655 static void
 656 qxl_send_monitors_config(struct qxl_device *qdev)
 657 {
 658         int i;
 659
 660         BUG_ON(!qdev->ram_header->monitors_config);
 661
 662         if (qdev->monitors_config->count == 0) {
 663                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 664                 return;
 665         }
 666         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 667                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 668
 669                 if (head->y > 8192 || head->x > 8192 ||
 670                     head->width > 8192 || head->height > 8192) {
 671                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 672                                   i, head->width, head->height,
 673                                   head->x, head->y);
 674                         return;
 675                 }
 676         }
 677         qxl_io_monitors_config(qdev);
 678 }
 679
 680 static void qxl_monitors_config_set(struct qxl_device *qdev,
 681                                     int index,
 682                                     unsigned x, unsigned y,
 683                                     unsigned width, unsigned height,
 684                                     unsigned surf_id)
 685 {
 686         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 687         qdev->monitors_config->heads[index].x = x;
 688         qdev->monitors_config->heads[index].y = y;
 689         qdev->monitors_config->heads[index].width = width;
 690         qdev->monitors_config->heads[index].height = height;
 691         qdev->monitors_config->heads[index].surface_id = surf_id;
 692
 693 }
 694
 695 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 696                                struct drm_display_mode *mode,
 697                                struct drm_display_mode *adjusted_mode,
 698                                int x, int y,
 699                                struct drm_framebuffer *old_fb)
 700 {
 701         struct drm_device *dev = crtc->dev;
 702         struct qxl_device *qdev = dev->dev_private;
 703         struct qxl_framebuffer *qfb;
 704         struct qxl_bo *bo, *old_bo = NULL;
 705         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 706         bool recreate_primary = false;
 707         int ret;
 708         int surf_id;
 709         if (!crtc->primary->fb) {
 710                 DRM_DEBUG_KMS("No FB bound\n");
 711                 return 0;
 712         }
 713
 714         if (old_fb) {
 715                 qfb = to_qxl_framebuffer(old_fb);
 716                 old_bo = gem_to_qxl_bo(qfb->obj);
 717         }
 718         qfb = to_qxl_framebuffer(crtc->primary->fb);
 719         bo = gem_to_qxl_bo(qfb->obj);
 720         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 721                   x, y,
 722                   mode->hdisplay, mode->vdisplay,
 723                   adjusted_mode->hdisplay,
 724                   adjusted_mode->vdisplay);
 725
 726         if (bo->is_primary == false)
 727                 recreate_primary = true;
 728
 729         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 730                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 731                 return -EINVAL;
 732         }
 733
 734         ret = qxl_bo_reserve(bo, false);
 735         if (ret != 0)
 736                 return ret;
 737         ret = qxl_bo_pin(bo, bo->type, NULL);
 738         if (ret != 0) {
 739                 qxl_bo_unreserve(bo);
 740                 return -EINVAL;
 741         }
 742         qxl_bo_unreserve(bo);
 743         if (recreate_primary) {
 744                 qxl_io_destroy_primary(qdev);
 745                 qxl_io_log(qdev,
 746                            "recreate primary: %dx%d,%d,%d\n",
 747                            bo->surf.width, bo->surf.height,
 748                            bo->surf.stride, bo->surf.format);
 749                 qxl_io_create_primary(qdev, 0, bo);
 750                 bo->is_primary = true;
 751
 752                 ret = qxl_crtc_apply_cursor(crtc);
 753                 if (ret) {
 754                         DRM_ERROR("could not set cursor after modeset");
 755                         ret = 0;
 756                 }
 757         }
 758
 759         if (bo->is_primary) {
 760                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 761                 surf_id = 0;
 762         } else {
 763                 surf_id = bo->surface_id;
 764         }
 765
 766         if (old_bo && old_bo != bo) {
 767                 old_bo->is_primary = false;
 768                 ret = qxl_bo_reserve(old_bo, false);
 769                 qxl_bo_unpin(old_bo);
 770                 qxl_bo_unreserve(old_bo);
 771         }
 772
 773         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 774                                 mode->hdisplay,
 775                                 mode->vdisplay, surf_id);
 776         return 0;
 777 }
 778
 779 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 780 {
 781         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 782                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 783                   crtc->x, crtc->y, crtc->enabled);
 784 }
 785
 786 static void qxl_crtc_commit(struct drm_crtc *crtc)
 787 {
 788         DRM_DEBUG("\n");
 789 }
 790
 791 static void qxl_crtc_disable(struct drm_crtc *crtc)
 792 {
 793         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 794         struct drm_device *dev = crtc->dev;
 795         struct qxl_device *qdev = dev->dev_private;
 796         if (crtc->primary->fb) {
 797                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 798                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 799                 int ret;
 800                 ret = qxl_bo_reserve(bo, false);
 801                 qxl_bo_unpin(bo);
 802                 qxl_bo_unreserve(bo);
 803                 crtc->primary->fb = NULL;
 804         }
 805
 806         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 807
 808         qxl_send_monitors_config(qdev);
 809 }
 810
 811 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 812         .dpms = qxl_crtc_dpms,
 813         .disable = qxl_crtc_disable,
 814         .mode_fixup = qxl_crtc_mode_fixup,
 815         .mode_set = qxl_crtc_mode_set,
 816         .prepare = qxl_crtc_prepare,
 817         .commit = qxl_crtc_commit,
 818 };
 819
 820 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 821 {
 822         struct qxl_crtc *qxl_crtc;
 823
 824         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 825         if (!qxl_crtc)
 826                 return -ENOMEM;
 827
 828         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 829         qxl_crtc->index = crtc_id;
 830         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 831         return 0;
 832 }
 833
 834 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 835 {
 836         DRM_DEBUG("\n");
 837 }
 838
 839 static void qxl_enc_prepare(struct drm_encoder *encoder)
 840 {
 841         DRM_DEBUG("\n");
 842 }
 843
 844 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 845                 struct drm_encoder *encoder)
 846 {
 847         int i;
 848         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 849         struct qxl_head *head;
 850         struct drm_display_mode *mode;
 851
 852         BUG_ON(!encoder);
 853         /* TODO: ugly, do better */
 854         i = output->index;
 855         if (!qdev->monitors_config ||
 856             qdev->monitors_config->max_allowed <= i) {
 857                 DRM_ERROR(
 858                 "head number too large or missing monitors config: %p, %d",
 859                 qdev->monitors_config,
 860                 qdev->monitors_config ?
 861                         qdev->monitors_config->max_allowed : -1);
 862                 return;
 863         }
 864         if (!encoder->crtc) {
 865                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 866                 return;
 867         }
 868         if (i != 0)
 869                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 870         head = &qdev->monitors_config->heads[i];
 871         head->id = i;
 872         if (encoder->crtc->enabled) {
 873                 mode = &encoder->crtc->mode;
 874                 head->width = mode->hdisplay;
 875                 head->height = mode->vdisplay;
 876                 head->x = encoder->crtc->x;
 877                 head->y = encoder->crtc->y;
 878                 if (qdev->monitors_config->count < i + 1)
 879                         qdev->monitors_config->count = i + 1;
 880         } else {
 881                 head->width = 0;
 882                 head->height = 0;
 883                 head->x = 0;
 884                 head->y = 0;
 885         }
 886         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 887                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 888         head->flags = 0;
 889         /* TODO - somewhere else to call this for multiple monitors
 890          * (config_commit?) */
 891         qxl_send_monitors_config(qdev);
 892 }
 893
 894 static void qxl_enc_commit(struct drm_encoder *encoder)
 895 {
 896         struct qxl_device *qdev = encoder->dev->dev_private;
 897
 898         qxl_write_monitors_config_for_encoder(qdev, encoder);
 899         DRM_DEBUG("\n");
 900 }
 901
 902 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 903                                 struct drm_display_mode *mode,
 904                                 struct drm_display_mode *adjusted_mode)
 905 {
 906         DRM_DEBUG("\n");
 907 }
 908
 909 static int qxl_conn_get_modes(struct drm_connector *connector)
 910 {
 911         int ret = 0;
 912         struct qxl_device *qdev = connector->dev->dev_private;
 913         unsigned pwidth = 1024;
 914         unsigned pheight = 768;
 915
 916         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 917         /* TODO: what should we do here? only show the configured modes for the
 918          * device, or allow the full list, or both? */
 919         if (qdev->monitors_config && qdev->monitors_config->count) {
 920                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 921                 if (ret < 0)
 922                         return ret;
 923         }
 924         ret += qxl_add_common_modes(connector, pwidth, pheight);
 925         return ret;
 926 }
 927
 928 static int qxl_conn_mode_valid(struct drm_connector *connector,
 929                                struct drm_display_mode *mode)
 930 {
 931         struct drm_device *ddev = connector->dev;
 932         struct qxl_device *qdev = ddev->dev_private;
 933         int i;
 934
 935         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 936          * TODO: check that the mode fits in the framebuffer */
 937
 938         if(qdev->monitors_config_width == mode->hdisplay &&
 939            qdev->monitors_config_height == mode->vdisplay)
 940                 return MODE_OK;
 941
 942         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 943                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 944                         return MODE_OK;
 945         }
 946         return MODE_BAD;
 947 }
 948
 949 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 950 {
 951         struct qxl_output *qxl_output =
 952                 drm_connector_to_qxl_output(connector);
 953
 954         DRM_DEBUG("\n");
 955         return &qxl_output->enc;
 956 }
 957
 958
 959 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 960         .dpms = qxl_enc_dpms,
 961         .prepare = qxl_enc_prepare,
 962         .mode_set = qxl_enc_mode_set,
 963         .commit = qxl_enc_commit,
 964 };
 965
 966 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 967         .get_modes = qxl_conn_get_modes,
 968         .mode_valid = qxl_conn_mode_valid,
 969         .best_encoder = qxl_best_encoder,
 970 };
 971
 972 static enum drm_connector_status qxl_conn_detect(
 973                         struct drm_connector *connector,
 974                         bool force)
 975 {
 976         struct qxl_output *output =
 977                 drm_connector_to_qxl_output(connector);
 978         struct drm_device *ddev = connector->dev;
 979         struct qxl_device *qdev = ddev->dev_private;
 980         bool connected = false;
 981
 982         /* The first monitor is always connected */
 983         if (!qdev->client_monitors_config) {
 984                 if (output->index == 0)
 985                         connected = true;
 986         } else
 987                 connected = qdev->client_monitors_config->count > output->index &&
 988                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 989
 990         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 991         if (!connected)
 992                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 993
 994         return connected ? connector_status_connected
 995                          : connector_status_disconnected;
 996 }
 997
 998 static int qxl_conn_set_property(struct drm_connector *connector,
 999                                    struct drm_property *property,
1000                                    uint64_t value)
1001 {
1002         DRM_DEBUG("\n");
1003         return 0;
1004 }
1005
1006 static void qxl_conn_destroy(struct drm_connector *connector)
1007 {
1008         struct qxl_output *qxl_output =
1009                 drm_connector_to_qxl_output(connector);
1010
1011         drm_connector_unregister(connector);
1012         drm_connector_cleanup(connector);
1013         kfree(qxl_output);
1014 }
1015
1016 static const struct drm_connector_funcs qxl_connector_funcs = {
1017         .dpms = drm_helper_connector_dpms,
1018         .detect = qxl_conn_detect,
1019         .fill_modes = drm_helper_probe_single_connector_modes,
1020         .set_property = qxl_conn_set_property,
1021         .destroy = qxl_conn_destroy,
1022 };
1023
1024 static void qxl_enc_destroy(struct drm_encoder *encoder)
1025 {
1026         drm_encoder_cleanup(encoder);
1027 }
1028
1029 static const struct drm_encoder_funcs qxl_enc_funcs = {
1030         .destroy = qxl_enc_destroy,
1031 };
1032
1033 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1034 {
1035         if (qdev->hotplug_mode_update_property)
1036                 return 0;
1037
1038         qdev->hotplug_mode_update_property =
1039                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1040                                           "hotplug_mode_update", 0, 1);
1041
1042         return 0;
1043 }
1044
1045 static int qdev_output_init(struct drm_device *dev, int num_output)
1046 {
1047         struct qxl_device *qdev = dev->dev_private;
1048         struct qxl_output *qxl_output;
1049         struct drm_connector *connector;
1050         struct drm_encoder *encoder;
1051
1052         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1053         if (!qxl_output)
1054                 return -ENOMEM;
1055
1056         qxl_output->index = num_output;
1057
1058         connector = &qxl_output->base;
1059         encoder = &qxl_output->enc;
1060         drm_connector_init(dev, &qxl_output->base,
1061                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1062
1063         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1064                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1065
1066         /* we get HPD via client monitors config */
1067         connector->polled = DRM_CONNECTOR_POLL_HPD;
1068         encoder->possible_crtcs = 1 << num_output;
1069         drm_mode_connector_attach_encoder(&qxl_output->base,
1070                                           &qxl_output->enc);
1071         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1072         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1073
1074         drm_object_attach_property(&connector->base,
1075                                    qdev->hotplug_mode_update_property, 0);
1076         drm_object_attach_property(&connector->base,
1077                                    dev->mode_config.suggested_x_property, 0);
1078         drm_object_attach_property(&connector->base,
1079                                    dev->mode_config.suggested_y_property, 0);
1080         drm_connector_register(connector);
1081         return 0;
1082 }
1083
1084 static struct drm_framebuffer *
1085 qxl_user_framebuffer_create(struct drm_device *dev,
1086                             struct drm_file *file_priv,
1087                             const struct drm_mode_fb_cmd2 *mode_cmd)
1088 {
1089         struct drm_gem_object *obj;
1090         struct qxl_framebuffer *qxl_fb;
1091         int ret;
1092
1093         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1094         if (!obj)
1095                 return NULL;
1096
1097         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1098         if (qxl_fb == NULL)
1099                 return NULL;
1100
1101         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1102         if (ret) {
1103                 kfree(qxl_fb);
1104                 drm_gem_object_unreference_unlocked(obj);
1105                 return NULL;
1106         }
1107
1108         return &qxl_fb->base;
1109 }
1110
1111 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1112         .fb_create = qxl_user_framebuffer_create,
1113 };
1114
1115 int qxl_create_monitors_object(struct qxl_device *qdev)
1116 {
1117         int ret;
1118         struct drm_gem_object *gobj;
1119         int max_allowed = qxl_num_crtc;
1120         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1121                 max_allowed * sizeof(struct qxl_head);
1122
1123         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1124                                     QXL_GEM_DOMAIN_VRAM,
1125                                     false, false, NULL, &gobj);
1126         if (ret) {
1127                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1128                 return -ENOMEM;
1129         }
1130         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1131
1132         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1133         if (ret)
1134                 return ret;
1135
1136         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1137         if (ret) {
1138                 qxl_bo_unreserve(qdev->monitors_config_bo);
1139                 return ret;
1140         }
1141
1142         qxl_bo_unreserve(qdev->monitors_config_bo);
1143
1144         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1145
1146         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1147         qdev->ram_header->monitors_config =
1148                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1149
1150         memset(qdev->monitors_config, 0, monitors_config_size);
1151         qdev->monitors_config->max_allowed = max_allowed;
1152         return 0;
1153 }
1154
1155 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1156 {
1157         int ret;
1158
1159         qdev->monitors_config = NULL;
1160         qdev->ram_header->monitors_config = 0;
1161
1162         qxl_bo_kunmap(qdev->monitors_config_bo);
1163         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1164         if (ret)
1165                 return ret;
1166
1167         qxl_bo_unpin(qdev->monitors_config_bo);
1168         qxl_bo_unreserve(qdev->monitors_config_bo);
1169
1170         qxl_bo_unref(&qdev->monitors_config_bo);
1171         return 0;
1172 }
1173
1174 int qxl_modeset_init(struct qxl_device *qdev)
1175 {
1176         int i;
1177         int ret;
1178
1179         drm_mode_config_init(qdev->ddev);
1180
1181         ret = qxl_create_monitors_object(qdev);
1182         if (ret)
1183                 return ret;
1184
1185         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1186
1187         /* modes will be validated against the framebuffer size */
1188         qdev->ddev->mode_config.min_width = 320;
1189         qdev->ddev->mode_config.min_height = 200;
1190         qdev->ddev->mode_config.max_width = 8192;
1191         qdev->ddev->mode_config.max_height = 8192;
1192
1193         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1194
1195         drm_mode_create_suggested_offset_properties(qdev->ddev);
1196         qxl_mode_create_hotplug_mode_update_property(qdev);
1197
1198         for (i = 0 ; i < qxl_num_crtc; ++i) {
1199                 qdev_crtc_init(qdev->ddev, i);
1200                 qdev_output_init(qdev->ddev, i);
1201         }
1202
1203         qdev->mode_info.mode_config_initialized = true;
1204
1205         /* primary surface must be created by this point, to allow
1206          * issuing command queue commands and having them read by
1207          * spice server. */
1208         qxl_fbdev_init(qdev);
1209         return 0;
1210 }
1211
1212 void qxl_modeset_fini(struct qxl_device *qdev)
1213 {
1214         qxl_fbdev_fini(qdev);
1215
1216         qxl_destroy_monitors_object(qdev);
1217         if (qdev->mode_info.mode_config_initialized) {
1218                 drm_mode_config_cleanup(qdev->ddev);
1219                 qdev->mode_info.mode_config_initialized = false;
1220         }
1221 }