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