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