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