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(dev)) {
 178                 /* notify that the monitor configuration changed, to
 179                    adjust at the arbitrary resolution */
 180                 drm_kms_helper_hotplug_event(dev);
 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_pin(bo, bo->type, NULL);
 290         if (ret)
 291                 return ret;
 292
 293         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 294                           &norect, one_clip_rect, inc);
 295
 296         drm_crtc_vblank_get(crtc);
 297
 298         if (event) {
 299                 spin_lock_irqsave(&dev->event_lock, flags);
 300                 drm_crtc_send_vblank_event(crtc, event);
 301                 spin_unlock_irqrestore(&dev->event_lock, flags);
 302         }
 303         drm_crtc_vblank_put(crtc);
 304
 305         qxl_bo_unpin(bo);
 306
 307         return 0;
 308 }
 309
 310 static int
 311 qxl_hide_cursor(struct qxl_device *qdev)
 312 {
 313         struct qxl_release *release;
 314         struct qxl_cursor_cmd *cmd;
 315         int ret;
 316
 317         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 318                                          &release, NULL);
 319         if (ret)
 320                 return ret;
 321
 322         ret = qxl_release_reserve_list(release, true);
 323         if (ret) {
 324                 qxl_release_free(qdev, release);
 325                 return ret;
 326         }
 327
 328         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 329         cmd->type = QXL_CURSOR_HIDE;
 330         qxl_release_unmap(qdev, release, &cmd->release_info);
 331
 332         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 333         qxl_release_fence_buffer_objects(release);
 334         return 0;
 335 }
 336
 337 static int qxl_crtc_apply_cursor(struct drm_crtc *crtc)
 338 {
 339         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 340         struct drm_device *dev = crtc->dev;
 341         struct qxl_device *qdev = dev->dev_private;
 342         struct qxl_cursor_cmd *cmd;
 343         struct qxl_release *release;
 344         int ret = 0;
 345
 346         if (!qcrtc->cursor_bo)
 347                 return 0;
 348
 349         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 350                                          QXL_RELEASE_CURSOR_CMD,
 351                                          &release, NULL);
 352         if (ret)
 353                 return ret;
 354
 355         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 356         if (ret)
 357                 goto out_free_release;
 358
 359         ret = qxl_release_reserve_list(release, false);
 360         if (ret)
 361                 goto out_free_release;
 362
 363         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 364         cmd->type = QXL_CURSOR_SET;
 365         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 366         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 367
 368         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 369
 370         cmd->u.set.visible = 1;
 371         qxl_release_unmap(qdev, release, &cmd->release_info);
 372
 373         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 374         qxl_release_fence_buffer_objects(release);
 375
 376         return ret;
 377
 378 out_free_release:
 379         qxl_release_free(qdev, release);
 380         return ret;
 381 }
 382
 383 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 384                                 struct drm_file *file_priv,
 385                                 uint32_t handle,
 386                                 uint32_t width,
 387                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 388 {
 389         struct drm_device *dev = crtc->dev;
 390         struct qxl_device *qdev = dev->dev_private;
 391         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 392         struct drm_gem_object *obj;
 393         struct qxl_cursor *cursor;
 394         struct qxl_cursor_cmd *cmd;
 395         struct qxl_bo *cursor_bo, *user_bo;
 396         struct qxl_release *release;
 397         void *user_ptr;
 398
 399         int size = 64*64*4;
 400         int ret = 0;
 401         if (!handle)
 402                 return qxl_hide_cursor(qdev);
 403
 404         obj = drm_gem_object_lookup(file_priv, handle);
 405         if (!obj) {
 406                 DRM_ERROR("cannot find cursor object\n");
 407                 return -ENOENT;
 408         }
 409
 410         user_bo = gem_to_qxl_bo(obj);
 411
 412         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 413         if (ret)
 414                 goto out_unref;
 415
 416         ret = qxl_bo_kmap(user_bo, &user_ptr);
 417         if (ret)
 418                 goto out_unpin;
 419
 420         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 421                                          QXL_RELEASE_CURSOR_CMD,
 422                                          &release, NULL);
 423         if (ret)
 424                 goto out_kunmap;
 425
 426         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 427                            &cursor_bo);
 428         if (ret)
 429                 goto out_free_release;
 430
 431         ret = qxl_release_reserve_list(release, false);
 432         if (ret)
 433                 goto out_free_bo;
 434
 435         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 436         if (ret)
 437                 goto out_backoff;
 438
 439         cursor->header.unique = 0;
 440         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 441         cursor->header.width = 64;
 442         cursor->header.height = 64;
 443         cursor->header.hot_spot_x = hot_x;
 444         cursor->header.hot_spot_y = hot_y;
 445         cursor->data_size = size;
 446         cursor->chunk.next_chunk = 0;
 447         cursor->chunk.prev_chunk = 0;
 448         cursor->chunk.data_size = size;
 449
 450         memcpy(cursor->chunk.data, user_ptr, size);
 451
 452         qxl_bo_kunmap(cursor_bo);
 453
 454         qxl_bo_kunmap(user_bo);
 455
 456         qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
 457         qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
 458         qcrtc->hot_spot_x = hot_x;
 459         qcrtc->hot_spot_y = hot_y;
 460
 461         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 462         cmd->type = QXL_CURSOR_SET;
 463         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 464         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 465
 466         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 467
 468         cmd->u.set.visible = 1;
 469         qxl_release_unmap(qdev, release, &cmd->release_info);
 470
 471         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 472         qxl_release_fence_buffer_objects(release);
 473
 474         /* finish with the userspace bo */
 475         qxl_bo_unpin(user_bo);
 476
 477         drm_gem_object_unreference_unlocked(obj);
 478
 479         qxl_bo_unref (&qcrtc->cursor_bo);
 480         qcrtc->cursor_bo = cursor_bo;
 481
 482         return ret;
 483
 484 out_backoff:
 485         qxl_release_backoff_reserve_list(release);
 486 out_free_bo:
 487         qxl_bo_unref(&cursor_bo);
 488 out_free_release:
 489         qxl_release_free(qdev, release);
 490 out_kunmap:
 491         qxl_bo_kunmap(user_bo);
 492 out_unpin:
 493         qxl_bo_unpin(user_bo);
 494 out_unref:
 495         drm_gem_object_unreference_unlocked(obj);
 496         return ret;
 497 }
 498
 499 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 500                                 int x, int y)
 501 {
 502         struct drm_device *dev = crtc->dev;
 503         struct qxl_device *qdev = dev->dev_private;
 504         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 505         struct qxl_release *release;
 506         struct qxl_cursor_cmd *cmd;
 507         int ret;
 508
 509         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 510                                    &release, NULL);
 511         if (ret)
 512                 return ret;
 513
 514         ret = qxl_release_reserve_list(release, true);
 515         if (ret) {
 516                 qxl_release_free(qdev, release);
 517                 return ret;
 518         }
 519
 520         qcrtc->cur_x = x;
 521         qcrtc->cur_y = y;
 522
 523         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 524         cmd->type = QXL_CURSOR_MOVE;
 525         cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 526         cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 527         qxl_release_unmap(qdev, release, &cmd->release_info);
 528
 529         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 530         qxl_release_fence_buffer_objects(release);
 531
 532         return 0;
 533 }
 534
 535 static u32 qxl_noop_get_vblank_counter(struct drm_crtc *crtc)
 536 {
 537         return 0;
 538 }
 539
 540 static int qxl_noop_enable_vblank(struct drm_crtc *crtc)
 541 {
 542         return 0;
 543 }
 544
 545 static void qxl_noop_disable_vblank(struct drm_crtc *crtc)
 546 {
 547 }
 548
 549 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 550         .cursor_set2 = qxl_crtc_cursor_set2,
 551         .cursor_move = qxl_crtc_cursor_move,
 552         .set_config = drm_crtc_helper_set_config,
 553         .destroy = qxl_crtc_destroy,
 554         .page_flip = qxl_crtc_page_flip,
 555         .get_vblank_counter = qxl_noop_get_vblank_counter,
 556         .enable_vblank = qxl_noop_enable_vblank,
 557         .disable_vblank = qxl_noop_disable_vblank,
 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         drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
 628         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 629         if (ret) {
 630                 qfb->obj = NULL;
 631                 return ret;
 632         }
 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_pin(bo, bo->type, NULL);
 735         if (ret != 0)
 736                 return -EINVAL;
 737
 738         if (recreate_primary) {
 739                 qxl_io_destroy_primary(qdev);
 740                 qxl_io_log(qdev,
 741                            "recreate primary: %dx%d,%d,%d\n",
 742                            bo->surf.width, bo->surf.height,
 743                            bo->surf.stride, bo->surf.format);
 744                 qxl_io_create_primary(qdev, 0, bo);
 745                 bo->is_primary = true;
 746
 747                 ret = qxl_crtc_apply_cursor(crtc);
 748                 if (ret) {
 749                         DRM_ERROR("could not set cursor after modeset");
 750                         ret = 0;
 751                 }
 752         }
 753
 754         if (bo->is_primary) {
 755                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 756                 surf_id = 0;
 757         } else {
 758                 surf_id = bo->surface_id;
 759         }
 760
 761         if (old_bo && old_bo != bo) {
 762                 old_bo->is_primary = false;
 763                 qxl_bo_unpin(old_bo);
 764         }
 765
 766         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 767                                 mode->hdisplay,
 768                                 mode->vdisplay, surf_id);
 769         return 0;
 770 }
 771
 772 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 773 {
 774         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 775                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 776                   crtc->x, crtc->y, crtc->enabled);
 777 }
 778
 779 static void qxl_crtc_commit(struct drm_crtc *crtc)
 780 {
 781         DRM_DEBUG("\n");
 782 }
 783
 784 static void qxl_crtc_disable(struct drm_crtc *crtc)
 785 {
 786         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 787         struct drm_device *dev = crtc->dev;
 788         struct qxl_device *qdev = dev->dev_private;
 789         if (crtc->primary->fb) {
 790                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 791                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 792
 793                 qxl_bo_unpin(bo);
 794                 crtc->primary->fb = NULL;
 795         }
 796
 797         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 798
 799         qxl_send_monitors_config(qdev);
 800 }
 801
 802 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 803         .dpms = qxl_crtc_dpms,
 804         .disable = qxl_crtc_disable,
 805         .mode_fixup = qxl_crtc_mode_fixup,
 806         .mode_set = qxl_crtc_mode_set,
 807         .prepare = qxl_crtc_prepare,
 808         .commit = qxl_crtc_commit,
 809 };
 810
 811 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 812 {
 813         struct qxl_crtc *qxl_crtc;
 814
 815         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 816         if (!qxl_crtc)
 817                 return -ENOMEM;
 818
 819         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 820         qxl_crtc->index = crtc_id;
 821         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 822         return 0;
 823 }
 824
 825 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 826 {
 827         DRM_DEBUG("\n");
 828 }
 829
 830 static void qxl_enc_prepare(struct drm_encoder *encoder)
 831 {
 832         DRM_DEBUG("\n");
 833 }
 834
 835 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 836                 struct drm_encoder *encoder)
 837 {
 838         int i;
 839         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 840         struct qxl_head *head;
 841         struct drm_display_mode *mode;
 842
 843         BUG_ON(!encoder);
 844         /* TODO: ugly, do better */
 845         i = output->index;
 846         if (!qdev->monitors_config ||
 847             qdev->monitors_config->max_allowed <= i) {
 848                 DRM_ERROR(
 849                 "head number too large or missing monitors config: %p, %d",
 850                 qdev->monitors_config,
 851                 qdev->monitors_config ?
 852                         qdev->monitors_config->max_allowed : -1);
 853                 return;
 854         }
 855         if (!encoder->crtc) {
 856                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 857                 return;
 858         }
 859         if (i != 0)
 860                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 861         head = &qdev->monitors_config->heads[i];
 862         head->id = i;
 863         if (encoder->crtc->enabled) {
 864                 mode = &encoder->crtc->mode;
 865                 head->width = mode->hdisplay;
 866                 head->height = mode->vdisplay;
 867                 head->x = encoder->crtc->x;
 868                 head->y = encoder->crtc->y;
 869                 if (qdev->monitors_config->count < i + 1)
 870                         qdev->monitors_config->count = i + 1;
 871         } else {
 872                 head->width = 0;
 873                 head->height = 0;
 874                 head->x = 0;
 875                 head->y = 0;
 876         }
 877         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 878                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 879         head->flags = 0;
 880         /* TODO - somewhere else to call this for multiple monitors
 881          * (config_commit?) */
 882         qxl_send_monitors_config(qdev);
 883 }
 884
 885 static void qxl_enc_commit(struct drm_encoder *encoder)
 886 {
 887         struct qxl_device *qdev = encoder->dev->dev_private;
 888
 889         qxl_write_monitors_config_for_encoder(qdev, encoder);
 890         DRM_DEBUG("\n");
 891 }
 892
 893 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 894                                 struct drm_display_mode *mode,
 895                                 struct drm_display_mode *adjusted_mode)
 896 {
 897         DRM_DEBUG("\n");
 898 }
 899
 900 static int qxl_conn_get_modes(struct drm_connector *connector)
 901 {
 902         int ret = 0;
 903         struct qxl_device *qdev = connector->dev->dev_private;
 904         unsigned pwidth = 1024;
 905         unsigned pheight = 768;
 906
 907         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 908         /* TODO: what should we do here? only show the configured modes for the
 909          * device, or allow the full list, or both? */
 910         if (qdev->monitors_config && qdev->monitors_config->count) {
 911                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 912                 if (ret < 0)
 913                         return ret;
 914         }
 915         ret += qxl_add_common_modes(connector, pwidth, pheight);
 916         return ret;
 917 }
 918
 919 static int qxl_conn_mode_valid(struct drm_connector *connector,
 920                                struct drm_display_mode *mode)
 921 {
 922         struct drm_device *ddev = connector->dev;
 923         struct qxl_device *qdev = ddev->dev_private;
 924         int i;
 925
 926         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 927          * TODO: check that the mode fits in the framebuffer */
 928
 929         if(qdev->monitors_config_width == mode->hdisplay &&
 930            qdev->monitors_config_height == mode->vdisplay)
 931                 return MODE_OK;
 932
 933         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 934                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 935                         return MODE_OK;
 936         }
 937         return MODE_BAD;
 938 }
 939
 940 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 941 {
 942         struct qxl_output *qxl_output =
 943                 drm_connector_to_qxl_output(connector);
 944
 945         DRM_DEBUG("\n");
 946         return &qxl_output->enc;
 947 }
 948
 949
 950 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 951         .dpms = qxl_enc_dpms,
 952         .prepare = qxl_enc_prepare,
 953         .mode_set = qxl_enc_mode_set,
 954         .commit = qxl_enc_commit,
 955 };
 956
 957 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 958         .get_modes = qxl_conn_get_modes,
 959         .mode_valid = qxl_conn_mode_valid,
 960         .best_encoder = qxl_best_encoder,
 961 };
 962
 963 static enum drm_connector_status qxl_conn_detect(
 964                         struct drm_connector *connector,
 965                         bool force)
 966 {
 967         struct qxl_output *output =
 968                 drm_connector_to_qxl_output(connector);
 969         struct drm_device *ddev = connector->dev;
 970         struct qxl_device *qdev = ddev->dev_private;
 971         bool connected = false;
 972
 973         /* The first monitor is always connected */
 974         if (!qdev->client_monitors_config) {
 975                 if (output->index == 0)
 976                         connected = true;
 977         } else
 978                 connected = qdev->client_monitors_config->count > output->index &&
 979                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 980
 981         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 982         if (!connected)
 983                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 984
 985         return connected ? connector_status_connected
 986                          : connector_status_disconnected;
 987 }
 988
 989 static int qxl_conn_set_property(struct drm_connector *connector,
 990                                    struct drm_property *property,
 991                                    uint64_t value)
 992 {
 993         DRM_DEBUG("\n");
 994         return 0;
 995 }
 996
 997 static void qxl_conn_destroy(struct drm_connector *connector)
 998 {
 999         struct qxl_output *qxl_output =
1000                 drm_connector_to_qxl_output(connector);
1001
1002         drm_connector_unregister(connector);
1003         drm_connector_cleanup(connector);
1004         kfree(qxl_output);
1005 }
1006
1007 static const struct drm_connector_funcs qxl_connector_funcs = {
1008         .dpms = drm_helper_connector_dpms,
1009         .detect = qxl_conn_detect,
1010         .fill_modes = drm_helper_probe_single_connector_modes,
1011         .set_property = qxl_conn_set_property,
1012         .destroy = qxl_conn_destroy,
1013 };
1014
1015 static void qxl_enc_destroy(struct drm_encoder *encoder)
1016 {
1017         drm_encoder_cleanup(encoder);
1018 }
1019
1020 static const struct drm_encoder_funcs qxl_enc_funcs = {
1021         .destroy = qxl_enc_destroy,
1022 };
1023
1024 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1025 {
1026         if (qdev->hotplug_mode_update_property)
1027                 return 0;
1028
1029         qdev->hotplug_mode_update_property =
1030                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1031                                           "hotplug_mode_update", 0, 1);
1032
1033         return 0;
1034 }
1035
1036 static int qdev_output_init(struct drm_device *dev, int num_output)
1037 {
1038         struct qxl_device *qdev = dev->dev_private;
1039         struct qxl_output *qxl_output;
1040         struct drm_connector *connector;
1041         struct drm_encoder *encoder;
1042
1043         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1044         if (!qxl_output)
1045                 return -ENOMEM;
1046
1047         qxl_output->index = num_output;
1048
1049         connector = &qxl_output->base;
1050         encoder = &qxl_output->enc;
1051         drm_connector_init(dev, &qxl_output->base,
1052                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1053
1054         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1055                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1056
1057         /* we get HPD via client monitors config */
1058         connector->polled = DRM_CONNECTOR_POLL_HPD;
1059         encoder->possible_crtcs = 1 << num_output;
1060         drm_mode_connector_attach_encoder(&qxl_output->base,
1061                                           &qxl_output->enc);
1062         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1063         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1064
1065         drm_object_attach_property(&connector->base,
1066                                    qdev->hotplug_mode_update_property, 0);
1067         drm_object_attach_property(&connector->base,
1068                                    dev->mode_config.suggested_x_property, 0);
1069         drm_object_attach_property(&connector->base,
1070                                    dev->mode_config.suggested_y_property, 0);
1071         return 0;
1072 }
1073
1074 static struct drm_framebuffer *
1075 qxl_user_framebuffer_create(struct drm_device *dev,
1076                             struct drm_file *file_priv,
1077                             const struct drm_mode_fb_cmd2 *mode_cmd)
1078 {
1079         struct drm_gem_object *obj;
1080         struct qxl_framebuffer *qxl_fb;
1081         int ret;
1082
1083         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1084         if (!obj)
1085                 return NULL;
1086
1087         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1088         if (qxl_fb == NULL)
1089                 return NULL;
1090
1091         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1092         if (ret) {
1093                 kfree(qxl_fb);
1094                 drm_gem_object_unreference_unlocked(obj);
1095                 return NULL;
1096         }
1097
1098         return &qxl_fb->base;
1099 }
1100
1101 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1102         .fb_create = qxl_user_framebuffer_create,
1103 };
1104
1105 int qxl_create_monitors_object(struct qxl_device *qdev)
1106 {
1107         int ret;
1108         struct drm_gem_object *gobj;
1109         int max_allowed = qxl_num_crtc;
1110         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1111                 max_allowed * sizeof(struct qxl_head);
1112
1113         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1114                                     QXL_GEM_DOMAIN_VRAM,
1115                                     false, false, NULL, &gobj);
1116         if (ret) {
1117                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1118                 return -ENOMEM;
1119         }
1120         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1121
1122         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1123         if (ret)
1124                 return ret;
1125
1126         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1127
1128         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1129         qdev->ram_header->monitors_config =
1130                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1131
1132         memset(qdev->monitors_config, 0, monitors_config_size);
1133         qdev->monitors_config->max_allowed = max_allowed;
1134         return 0;
1135 }
1136
1137 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1138 {
1139         int ret;
1140
1141         qdev->monitors_config = NULL;
1142         qdev->ram_header->monitors_config = 0;
1143
1144         qxl_bo_kunmap(qdev->monitors_config_bo);
1145         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1146         if (ret)
1147                 return ret;
1148
1149         qxl_bo_unref(&qdev->monitors_config_bo);
1150         return 0;
1151 }
1152
1153 int qxl_modeset_init(struct qxl_device *qdev)
1154 {
1155         int i;
1156         int ret;
1157
1158         drm_mode_config_init(&qdev->ddev);
1159
1160         ret = qxl_create_monitors_object(qdev);
1161         if (ret)
1162                 return ret;
1163
1164         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1165
1166         /* modes will be validated against the framebuffer size */
1167         qdev->ddev.mode_config.min_width = 320;
1168         qdev->ddev.mode_config.min_height = 200;
1169         qdev->ddev.mode_config.max_width = 8192;
1170         qdev->ddev.mode_config.max_height = 8192;
1171
1172         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1173
1174         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1175         qxl_mode_create_hotplug_mode_update_property(qdev);
1176
1177         for (i = 0 ; i < qxl_num_crtc; ++i) {
1178                 qdev_crtc_init(&qdev->ddev, i);
1179                 qdev_output_init(&qdev->ddev, i);
1180         }
1181
1182         qdev->mode_info.mode_config_initialized = true;
1183
1184         /* primary surface must be created by this point, to allow
1185          * issuing command queue commands and having them read by
1186          * spice server. */
1187         qxl_fbdev_init(qdev);
1188         return 0;
1189 }
1190
1191 void qxl_modeset_fini(struct qxl_device *qdev)
1192 {
1193         qxl_fbdev_fini(qdev);
1194
1195         qxl_destroy_monitors_object(qdev);
1196         if (qdev->mode_info.mode_config_initialized) {
1197                 drm_mode_config_cleanup(&qdev->ddev);
1198                 qdev->mode_info.mode_config_initialized = false;
1199         }
1200 }