drivers/gpu/drm/qxl/qxl_display.c

   1 /*
   2  * Copyright 2013 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Dave Airlie
  23  *          Alon Levy
  24  */
  25
  26
  27 #include <linux/crc32.h>
  28
  29 #include "qxl_drv.h"
  30 #include "qxl_object.h"
  31 #include "drm_crtc_helper.h"
  32 #include <drm/drm_plane_helper.h>
  33
  34 static bool qxl_head_enabled(struct qxl_head *head)
  35 {
  36         return head->width && head->height;
  37 }
  38
  39 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  40 {
  41         if (qdev->client_monitors_config &&
  42             count > qdev->client_monitors_config->count) {
  43                 kfree(qdev->client_monitors_config);
  44                 qdev->client_monitors_config = NULL;
  45         }
  46         if (!qdev->client_monitors_config) {
  47                 qdev->client_monitors_config = kzalloc(
  48                                 sizeof(struct qxl_monitors_config) +
  49                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  50                 if (!qdev->client_monitors_config) {
  51                         qxl_io_log(qdev,
  52                                    "%s: allocation failure for %u heads\n",
  53                                    __func__, count);
  54                         return;
  55                 }
  56         }
  57         qdev->client_monitors_config->count = count;
  58 }
  59
  60 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  61 {
  62         int i;
  63         int num_monitors;
  64         uint32_t crc;
  65
  66         num_monitors = qdev->rom->client_monitors_config.count;
  67         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  68                   sizeof(qdev->rom->client_monitors_config));
  69         if (crc != qdev->rom->client_monitors_config_crc) {
  70                 qxl_io_log(qdev, "crc mismatch: have %X (%d) != %X\n", crc,
  71                            sizeof(qdev->rom->client_monitors_config),
  72                            qdev->rom->client_monitors_config_crc);
  73                 return 1;
  74         }
  75         if (num_monitors > qdev->monitors_config->max_allowed) {
  76                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  77                               qdev->monitors_config->max_allowed, num_monitors);
  78                 num_monitors = qdev->monitors_config->max_allowed;
  79         } else {
  80                 num_monitors = qdev->rom->client_monitors_config.count;
  81         }
  82         qxl_alloc_client_monitors_config(qdev, num_monitors);
  83         /* we copy max from the client but it isn't used */
  84         qdev->client_monitors_config->max_allowed =
  85                                 qdev->monitors_config->max_allowed;
  86         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
  87                 struct qxl_urect *c_rect =
  88                         &qdev->rom->client_monitors_config.heads[i];
  89                 struct qxl_head *client_head =
  90                         &qdev->client_monitors_config->heads[i];
  91                 client_head->x = c_rect->left;
  92                 client_head->y = c_rect->top;
  93                 client_head->width = c_rect->right - c_rect->left;
  94                 client_head->height = c_rect->bottom - c_rect->top;
  95                 client_head->surface_id = 0;
  96                 client_head->id = i;
  97                 client_head->flags = 0;
  98                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
  99                           client_head->x, client_head->y);
 100         }
 101         return 0;
 102 }
 103
 104 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 105 {
 106
 107         while (qxl_display_copy_rom_client_monitors_config(qdev)) {
 108                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
 109                                  " retrying\n");
 110         }
 111
 112         if (!drm_helper_hpd_irq_event(qdev->ddev)) {
 113                 /* notify that the monitor configuration changed, to
 114                    adjust at the arbitrary resolution */
 115                 drm_kms_helper_hotplug_event(qdev->ddev);
 116         }
 117 }
 118
 119 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 120                                          unsigned *pwidth,
 121                                          unsigned *pheight)
 122 {
 123         struct drm_device *dev = connector->dev;
 124         struct qxl_device *qdev = dev->dev_private;
 125         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 126         int h = output->index;
 127         struct drm_display_mode *mode = NULL;
 128         struct qxl_head *head;
 129
 130         if (!qdev->client_monitors_config)
 131                 return 0;
 132         head = &qdev->client_monitors_config->heads[h];
 133
 134         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 135                             false);
 136         mode->type |= DRM_MODE_TYPE_PREFERRED;
 137         *pwidth = head->width;
 138         *pheight = head->height;
 139         drm_mode_probed_add(connector, mode);
 140         return 1;
 141 }
 142
 143 static int qxl_add_common_modes(struct drm_connector *connector,
 144                                 unsigned pwidth,
 145                                 unsigned pheight)
 146 {
 147         struct drm_device *dev = connector->dev;
 148         struct drm_display_mode *mode = NULL;
 149         int i;
 150         struct mode_size {
 151                 int w;
 152                 int h;
 153         } common_modes[] = {
 154                 { 640,  480},
 155                 { 720,  480},
 156                 { 800,  600},
 157                 { 848,  480},
 158                 {1024,  768},
 159                 {1152,  768},
 160                 {1280,  720},
 161                 {1280,  800},
 162                 {1280,  854},
 163                 {1280,  960},
 164                 {1280, 1024},
 165                 {1440,  900},
 166                 {1400, 1050},
 167                 {1680, 1050},
 168                 {1600, 1200},
 169                 {1920, 1080},
 170                 {1920, 1200}
 171         };
 172
 173         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 174                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 175                                     60, false, false, false);
 176                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 177                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 178                 drm_mode_probed_add(connector, mode);
 179         }
 180         return i - 1;
 181 }
 182
 183 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 184 {
 185         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 186
 187         drm_crtc_cleanup(crtc);
 188         kfree(qxl_crtc);
 189 }
 190
 191 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 192                               struct drm_framebuffer *fb,
 193                               struct drm_pending_vblank_event *event,
 194                               uint32_t page_flip_flags)
 195 {
 196         struct drm_device *dev = crtc->dev;
 197         struct qxl_device *qdev = dev->dev_private;
 198         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 199         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
 200         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
 201         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
 202         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
 203         unsigned long flags;
 204         struct drm_clip_rect norect = {
 205             .x1 = 0,
 206             .y1 = 0,
 207             .x2 = fb->width,
 208             .y2 = fb->height
 209         };
 210         int inc = 1;
 211         int one_clip_rect = 1;
 212         int ret = 0;
 213
 214         crtc->primary->fb = fb;
 215         bo_old->is_primary = false;
 216         bo->is_primary = true;
 217
 218         ret = qxl_bo_reserve(bo, false);
 219         if (ret)
 220                 return ret;
 221
 222         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 223                           &norect, one_clip_rect, inc);
 224
 225         drm_vblank_get(dev, qcrtc->index);
 226
 227         if (event) {
 228                 spin_lock_irqsave(&dev->event_lock, flags);
 229                 drm_send_vblank_event(dev, qcrtc->index, event);
 230                 spin_unlock_irqrestore(&dev->event_lock, flags);
 231         }
 232         drm_vblank_put(dev, qcrtc->index);
 233
 234         qxl_bo_unreserve(bo);
 235
 236         return 0;
 237 }
 238
 239 static int
 240 qxl_hide_cursor(struct qxl_device *qdev)
 241 {
 242         struct qxl_release *release;
 243         struct qxl_cursor_cmd *cmd;
 244         int ret;
 245
 246         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 247                                          &release, NULL);
 248         if (ret)
 249                 return ret;
 250
 251         ret = qxl_release_reserve_list(release, true);
 252         if (ret) {
 253                 qxl_release_free(qdev, release);
 254                 return ret;
 255         }
 256
 257         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 258         cmd->type = QXL_CURSOR_HIDE;
 259         qxl_release_unmap(qdev, release, &cmd->release_info);
 260
 261         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 262         qxl_release_fence_buffer_objects(release);
 263         return 0;
 264 }
 265
 266 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 267                                 struct drm_file *file_priv,
 268                                 uint32_t handle,
 269                                 uint32_t width,
 270                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 271 {
 272         struct drm_device *dev = crtc->dev;
 273         struct qxl_device *qdev = dev->dev_private;
 274         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 275         struct drm_gem_object *obj;
 276         struct qxl_cursor *cursor;
 277         struct qxl_cursor_cmd *cmd;
 278         struct qxl_bo *cursor_bo, *user_bo;
 279         struct qxl_release *release;
 280         void *user_ptr;
 281
 282         int size = 64*64*4;
 283         int ret = 0;
 284         if (!handle)
 285                 return qxl_hide_cursor(qdev);
 286
 287         obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
 288         if (!obj) {
 289                 DRM_ERROR("cannot find cursor object\n");
 290                 return -ENOENT;
 291         }
 292
 293         user_bo = gem_to_qxl_bo(obj);
 294
 295         ret = qxl_bo_reserve(user_bo, false);
 296         if (ret)
 297                 goto out_unref;
 298
 299         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 300         qxl_bo_unreserve(user_bo);
 301         if (ret)
 302                 goto out_unref;
 303
 304         ret = qxl_bo_kmap(user_bo, &user_ptr);
 305         if (ret)
 306                 goto out_unpin;
 307
 308         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 309                                          QXL_RELEASE_CURSOR_CMD,
 310                                          &release, NULL);
 311         if (ret)
 312                 goto out_kunmap;
 313
 314         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 315                            &cursor_bo);
 316         if (ret)
 317                 goto out_free_release;
 318
 319         ret = qxl_release_reserve_list(release, false);
 320         if (ret)
 321                 goto out_free_bo;
 322
 323         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 324         if (ret)
 325                 goto out_backoff;
 326
 327         cursor->header.unique = 0;
 328         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 329         cursor->header.width = 64;
 330         cursor->header.height = 64;
 331         cursor->header.hot_spot_x = hot_x;
 332         cursor->header.hot_spot_y = hot_y;
 333         cursor->data_size = size;
 334         cursor->chunk.next_chunk = 0;
 335         cursor->chunk.prev_chunk = 0;
 336         cursor->chunk.data_size = size;
 337
 338         memcpy(cursor->chunk.data, user_ptr, size);
 339
 340         qxl_bo_kunmap(cursor_bo);
 341
 342         qxl_bo_kunmap(user_bo);
 343
 344         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 345         cmd->type = QXL_CURSOR_SET;
 346         cmd->u.set.position.x = qcrtc->cur_x;
 347         cmd->u.set.position.y = qcrtc->cur_y;
 348
 349         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 350
 351         cmd->u.set.visible = 1;
 352         qxl_release_unmap(qdev, release, &cmd->release_info);
 353
 354         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 355         qxl_release_fence_buffer_objects(release);
 356
 357         /* finish with the userspace bo */
 358         ret = qxl_bo_reserve(user_bo, false);
 359         if (!ret) {
 360                 qxl_bo_unpin(user_bo);
 361                 qxl_bo_unreserve(user_bo);
 362         }
 363         drm_gem_object_unreference_unlocked(obj);
 364
 365         qxl_bo_unref(&cursor_bo);
 366
 367         return ret;
 368
 369 out_backoff:
 370         qxl_release_backoff_reserve_list(release);
 371 out_free_bo:
 372         qxl_bo_unref(&cursor_bo);
 373 out_free_release:
 374         qxl_release_free(qdev, release);
 375 out_kunmap:
 376         qxl_bo_kunmap(user_bo);
 377 out_unpin:
 378         qxl_bo_unpin(user_bo);
 379 out_unref:
 380         drm_gem_object_unreference_unlocked(obj);
 381         return ret;
 382 }
 383
 384 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 385                                 int x, int y)
 386 {
 387         struct drm_device *dev = crtc->dev;
 388         struct qxl_device *qdev = dev->dev_private;
 389         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 390         struct qxl_release *release;
 391         struct qxl_cursor_cmd *cmd;
 392         int ret;
 393
 394         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 395                                    &release, NULL);
 396         if (ret)
 397                 return ret;
 398
 399         ret = qxl_release_reserve_list(release, true);
 400         if (ret) {
 401                 qxl_release_free(qdev, release);
 402                 return ret;
 403         }
 404
 405         qcrtc->cur_x = x;
 406         qcrtc->cur_y = y;
 407
 408         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 409         cmd->type = QXL_CURSOR_MOVE;
 410         cmd->u.position.x = qcrtc->cur_x;
 411         cmd->u.position.y = qcrtc->cur_y;
 412         qxl_release_unmap(qdev, release, &cmd->release_info);
 413
 414         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 415         qxl_release_fence_buffer_objects(release);
 416
 417         return 0;
 418 }
 419
 420
 421 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 422         .cursor_set2 = qxl_crtc_cursor_set2,
 423         .cursor_move = qxl_crtc_cursor_move,
 424         .set_config = drm_crtc_helper_set_config,
 425         .destroy = qxl_crtc_destroy,
 426         .page_flip = qxl_crtc_page_flip,
 427 };
 428
 429 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 430 {
 431         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 432
 433         if (qxl_fb->obj)
 434                 drm_gem_object_unreference_unlocked(qxl_fb->obj);
 435         drm_framebuffer_cleanup(fb);
 436         kfree(qxl_fb);
 437 }
 438
 439 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 440                                          struct drm_file *file_priv,
 441                                          unsigned flags, unsigned color,
 442                                          struct drm_clip_rect *clips,
 443                                          unsigned num_clips)
 444 {
 445         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 446         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 447         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 448         struct drm_clip_rect norect;
 449         struct qxl_bo *qobj;
 450         int inc = 1;
 451
 452         drm_modeset_lock_all(fb->dev);
 453
 454         qobj = gem_to_qxl_bo(qxl_fb->obj);
 455         /* if we aren't primary surface ignore this */
 456         if (!qobj->is_primary) {
 457                 drm_modeset_unlock_all(fb->dev);
 458                 return 0;
 459         }
 460
 461         if (!num_clips) {
 462                 num_clips = 1;
 463                 clips = &norect;
 464                 norect.x1 = norect.y1 = 0;
 465                 norect.x2 = fb->width;
 466                 norect.y2 = fb->height;
 467         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 468                 num_clips /= 2;
 469                 inc = 2; /* skip source rects */
 470         }
 471
 472         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 473                           clips, num_clips, inc);
 474
 475         drm_modeset_unlock_all(fb->dev);
 476
 477         return 0;
 478 }
 479
 480 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 481         .destroy = qxl_user_framebuffer_destroy,
 482         .dirty = qxl_framebuffer_surface_dirty,
 483 /*      TODO?
 484  *      .create_handle = qxl_user_framebuffer_create_handle, */
 485 };
 486
 487 int
 488 qxl_framebuffer_init(struct drm_device *dev,
 489                      struct qxl_framebuffer *qfb,
 490                      struct drm_mode_fb_cmd2 *mode_cmd,
 491                      struct drm_gem_object *obj)
 492 {
 493         int ret;
 494
 495         qfb->obj = obj;
 496         ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
 497         if (ret) {
 498                 qfb->obj = NULL;
 499                 return ret;
 500         }
 501         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 502         return 0;
 503 }
 504
 505 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 506 {
 507 }
 508
 509 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 510                                   const struct drm_display_mode *mode,
 511                                   struct drm_display_mode *adjusted_mode)
 512 {
 513         struct drm_device *dev = crtc->dev;
 514         struct qxl_device *qdev = dev->dev_private;
 515
 516         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 517                    __func__,
 518                    mode->hdisplay, mode->vdisplay,
 519                    adjusted_mode->hdisplay,
 520                    adjusted_mode->vdisplay);
 521         return true;
 522 }
 523
 524 void
 525 qxl_send_monitors_config(struct qxl_device *qdev)
 526 {
 527         int i;
 528
 529         BUG_ON(!qdev->ram_header->monitors_config);
 530
 531         if (qdev->monitors_config->count == 0) {
 532                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 533                 return;
 534         }
 535         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 536                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 537
 538                 if (head->y > 8192 || head->x > 8192 ||
 539                     head->width > 8192 || head->height > 8192) {
 540                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 541                                   i, head->width, head->height,
 542                                   head->x, head->y);
 543                         return;
 544                 }
 545         }
 546         qxl_io_monitors_config(qdev);
 547 }
 548
 549 static void qxl_monitors_config_set(struct qxl_device *qdev,
 550                                     int index,
 551                                     unsigned x, unsigned y,
 552                                     unsigned width, unsigned height,
 553                                     unsigned surf_id)
 554 {
 555         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 556         qdev->monitors_config->heads[index].x = x;
 557         qdev->monitors_config->heads[index].y = y;
 558         qdev->monitors_config->heads[index].width = width;
 559         qdev->monitors_config->heads[index].height = height;
 560         qdev->monitors_config->heads[index].surface_id = surf_id;
 561
 562 }
 563
 564 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 565                                struct drm_display_mode *mode,
 566                                struct drm_display_mode *adjusted_mode,
 567                                int x, int y,
 568                                struct drm_framebuffer *old_fb)
 569 {
 570         struct drm_device *dev = crtc->dev;
 571         struct qxl_device *qdev = dev->dev_private;
 572         struct qxl_mode *m = (void *)mode->private;
 573         struct qxl_framebuffer *qfb;
 574         struct qxl_bo *bo, *old_bo = NULL;
 575         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 576         bool recreate_primary = false;
 577         int ret;
 578         int surf_id;
 579         if (!crtc->primary->fb) {
 580                 DRM_DEBUG_KMS("No FB bound\n");
 581                 return 0;
 582         }
 583
 584         if (old_fb) {
 585                 qfb = to_qxl_framebuffer(old_fb);
 586                 old_bo = gem_to_qxl_bo(qfb->obj);
 587         }
 588         qfb = to_qxl_framebuffer(crtc->primary->fb);
 589         bo = gem_to_qxl_bo(qfb->obj);
 590         if (!m)
 591                 /* and do we care? */
 592                 DRM_DEBUG("%dx%d: not a native mode\n", x, y);
 593         else
 594                 DRM_DEBUG("%dx%d: qxl id %d\n",
 595                           mode->hdisplay, mode->vdisplay, m->id);
 596         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 597                   x, y,
 598                   mode->hdisplay, mode->vdisplay,
 599                   adjusted_mode->hdisplay,
 600                   adjusted_mode->vdisplay);
 601
 602         if (qcrtc->index == 0)
 603                 recreate_primary = true;
 604
 605         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 606                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 607                 return -EINVAL;
 608         }
 609
 610         ret = qxl_bo_reserve(bo, false);
 611         if (ret != 0)
 612                 return ret;
 613         ret = qxl_bo_pin(bo, bo->type, NULL);
 614         if (ret != 0) {
 615                 qxl_bo_unreserve(bo);
 616                 return -EINVAL;
 617         }
 618         qxl_bo_unreserve(bo);
 619         if (recreate_primary) {
 620                 qxl_io_destroy_primary(qdev);
 621                 qxl_io_log(qdev,
 622                            "recreate primary: %dx%d,%d,%d\n",
 623                            bo->surf.width, bo->surf.height,
 624                            bo->surf.stride, bo->surf.format);
 625                 qxl_io_create_primary(qdev, 0, bo);
 626                 bo->is_primary = true;
 627         }
 628
 629         if (bo->is_primary) {
 630                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 631                 surf_id = 0;
 632         } else {
 633                 surf_id = bo->surface_id;
 634         }
 635
 636         if (old_bo && old_bo != bo) {
 637                 old_bo->is_primary = false;
 638                 ret = qxl_bo_reserve(old_bo, false);
 639                 qxl_bo_unpin(old_bo);
 640                 qxl_bo_unreserve(old_bo);
 641         }
 642
 643         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 644                                 mode->hdisplay,
 645                                 mode->vdisplay, surf_id);
 646         return 0;
 647 }
 648
 649 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 650 {
 651         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 652                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 653                   crtc->x, crtc->y, crtc->enabled);
 654 }
 655
 656 static void qxl_crtc_commit(struct drm_crtc *crtc)
 657 {
 658         DRM_DEBUG("\n");
 659 }
 660
 661 static void qxl_crtc_disable(struct drm_crtc *crtc)
 662 {
 663         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 664         struct drm_device *dev = crtc->dev;
 665         struct qxl_device *qdev = dev->dev_private;
 666         if (crtc->primary->fb) {
 667                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 668                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 669                 int ret;
 670                 ret = qxl_bo_reserve(bo, false);
 671                 qxl_bo_unpin(bo);
 672                 qxl_bo_unreserve(bo);
 673                 crtc->primary->fb = NULL;
 674         }
 675
 676         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 677
 678         qxl_send_monitors_config(qdev);
 679 }
 680
 681 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 682         .dpms = qxl_crtc_dpms,
 683         .disable = qxl_crtc_disable,
 684         .mode_fixup = qxl_crtc_mode_fixup,
 685         .mode_set = qxl_crtc_mode_set,
 686         .prepare = qxl_crtc_prepare,
 687         .commit = qxl_crtc_commit,
 688 };
 689
 690 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 691 {
 692         struct qxl_crtc *qxl_crtc;
 693
 694         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 695         if (!qxl_crtc)
 696                 return -ENOMEM;
 697
 698         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 699         qxl_crtc->index = crtc_id;
 700         drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
 701         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 702         return 0;
 703 }
 704
 705 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 706 {
 707         DRM_DEBUG("\n");
 708 }
 709
 710 static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
 711                                const struct drm_display_mode *mode,
 712                                struct drm_display_mode *adjusted_mode)
 713 {
 714         DRM_DEBUG("\n");
 715         return true;
 716 }
 717
 718 static void qxl_enc_prepare(struct drm_encoder *encoder)
 719 {
 720         DRM_DEBUG("\n");
 721 }
 722
 723 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 724                 struct drm_encoder *encoder)
 725 {
 726         int i;
 727         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 728         struct qxl_head *head;
 729         struct drm_display_mode *mode;
 730
 731         BUG_ON(!encoder);
 732         /* TODO: ugly, do better */
 733         i = output->index;
 734         if (!qdev->monitors_config ||
 735             qdev->monitors_config->max_allowed <= i) {
 736                 DRM_ERROR(
 737                 "head number too large or missing monitors config: %p, %d",
 738                 qdev->monitors_config,
 739                 qdev->monitors_config ?
 740                         qdev->monitors_config->max_allowed : -1);
 741                 return;
 742         }
 743         if (!encoder->crtc) {
 744                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 745                 return;
 746         }
 747         if (i != 0)
 748                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 749         head = &qdev->monitors_config->heads[i];
 750         head->id = i;
 751         if (encoder->crtc->enabled) {
 752                 mode = &encoder->crtc->mode;
 753                 head->width = mode->hdisplay;
 754                 head->height = mode->vdisplay;
 755                 head->x = encoder->crtc->x;
 756                 head->y = encoder->crtc->y;
 757                 if (qdev->monitors_config->count < i + 1)
 758                         qdev->monitors_config->count = i + 1;
 759         } else {
 760                 head->width = 0;
 761                 head->height = 0;
 762                 head->x = 0;
 763                 head->y = 0;
 764         }
 765         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 766                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 767         head->flags = 0;
 768         /* TODO - somewhere else to call this for multiple monitors
 769          * (config_commit?) */
 770         qxl_send_monitors_config(qdev);
 771 }
 772
 773 static void qxl_enc_commit(struct drm_encoder *encoder)
 774 {
 775         struct qxl_device *qdev = encoder->dev->dev_private;
 776
 777         qxl_write_monitors_config_for_encoder(qdev, encoder);
 778         DRM_DEBUG("\n");
 779 }
 780
 781 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 782                                 struct drm_display_mode *mode,
 783                                 struct drm_display_mode *adjusted_mode)
 784 {
 785         DRM_DEBUG("\n");
 786 }
 787
 788 static int qxl_conn_get_modes(struct drm_connector *connector)
 789 {
 790         int ret = 0;
 791         struct qxl_device *qdev = connector->dev->dev_private;
 792         unsigned pwidth = 1024;
 793         unsigned pheight = 768;
 794
 795         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 796         /* TODO: what should we do here? only show the configured modes for the
 797          * device, or allow the full list, or both? */
 798         if (qdev->monitors_config && qdev->monitors_config->count) {
 799                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 800                 if (ret < 0)
 801                         return ret;
 802         }
 803         ret += qxl_add_common_modes(connector, pwidth, pheight);
 804         return ret;
 805 }
 806
 807 static int qxl_conn_mode_valid(struct drm_connector *connector,
 808                                struct drm_display_mode *mode)
 809 {
 810         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 811          * TODO: check that the mode fits in the framebuffer */
 812         DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
 813                   mode->vdisplay, mode->status);
 814         return MODE_OK;
 815 }
 816
 817 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 818 {
 819         struct qxl_output *qxl_output =
 820                 drm_connector_to_qxl_output(connector);
 821
 822         DRM_DEBUG("\n");
 823         return &qxl_output->enc;
 824 }
 825
 826
 827 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 828         .dpms = qxl_enc_dpms,
 829         .mode_fixup = qxl_enc_mode_fixup,
 830         .prepare = qxl_enc_prepare,
 831         .mode_set = qxl_enc_mode_set,
 832         .commit = qxl_enc_commit,
 833 };
 834
 835 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 836         .get_modes = qxl_conn_get_modes,
 837         .mode_valid = qxl_conn_mode_valid,
 838         .best_encoder = qxl_best_encoder,
 839 };
 840
 841 static void qxl_conn_save(struct drm_connector *connector)
 842 {
 843         DRM_DEBUG("\n");
 844 }
 845
 846 static void qxl_conn_restore(struct drm_connector *connector)
 847 {
 848         DRM_DEBUG("\n");
 849 }
 850
 851 static enum drm_connector_status qxl_conn_detect(
 852                         struct drm_connector *connector,
 853                         bool force)
 854 {
 855         struct qxl_output *output =
 856                 drm_connector_to_qxl_output(connector);
 857         struct drm_device *ddev = connector->dev;
 858         struct qxl_device *qdev = ddev->dev_private;
 859         int connected;
 860
 861         /* The first monitor is always connected */
 862         connected = (output->index == 0) ||
 863                     (qdev->client_monitors_config &&
 864                      qdev->client_monitors_config->count > output->index &&
 865                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
 866
 867         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 868         if (!connected)
 869                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 870
 871         return connected ? connector_status_connected
 872                          : connector_status_disconnected;
 873 }
 874
 875 static int qxl_conn_set_property(struct drm_connector *connector,
 876                                    struct drm_property *property,
 877                                    uint64_t value)
 878 {
 879         DRM_DEBUG("\n");
 880         return 0;
 881 }
 882
 883 static void qxl_conn_destroy(struct drm_connector *connector)
 884 {
 885         struct qxl_output *qxl_output =
 886                 drm_connector_to_qxl_output(connector);
 887
 888         drm_connector_unregister(connector);
 889         drm_connector_cleanup(connector);
 890         kfree(qxl_output);
 891 }
 892
 893 static const struct drm_connector_funcs qxl_connector_funcs = {
 894         .dpms = drm_helper_connector_dpms,
 895         .save = qxl_conn_save,
 896         .restore = qxl_conn_restore,
 897         .detect = qxl_conn_detect,
 898         .fill_modes = drm_helper_probe_single_connector_modes_nomerge,
 899         .set_property = qxl_conn_set_property,
 900         .destroy = qxl_conn_destroy,
 901 };
 902
 903 static void qxl_enc_destroy(struct drm_encoder *encoder)
 904 {
 905         drm_encoder_cleanup(encoder);
 906 }
 907
 908 static const struct drm_encoder_funcs qxl_enc_funcs = {
 909         .destroy = qxl_enc_destroy,
 910 };
 911
 912 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 913 {
 914         if (qdev->hotplug_mode_update_property)
 915                 return 0;
 916
 917         qdev->hotplug_mode_update_property =
 918                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 919                                           "hotplug_mode_update", 0, 1);
 920
 921         return 0;
 922 }
 923
 924 static int qdev_output_init(struct drm_device *dev, int num_output)
 925 {
 926         struct qxl_device *qdev = dev->dev_private;
 927         struct qxl_output *qxl_output;
 928         struct drm_connector *connector;
 929         struct drm_encoder *encoder;
 930
 931         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 932         if (!qxl_output)
 933                 return -ENOMEM;
 934
 935         qxl_output->index = num_output;
 936
 937         connector = &qxl_output->base;
 938         encoder = &qxl_output->enc;
 939         drm_connector_init(dev, &qxl_output->base,
 940                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 941
 942         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 943                          DRM_MODE_ENCODER_VIRTUAL);
 944
 945         /* we get HPD via client monitors config */
 946         connector->polled = DRM_CONNECTOR_POLL_HPD;
 947         encoder->possible_crtcs = 1 << num_output;
 948         drm_mode_connector_attach_encoder(&qxl_output->base,
 949                                           &qxl_output->enc);
 950         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 951         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 952
 953         drm_object_attach_property(&connector->base,
 954                                    qdev->hotplug_mode_update_property, 0);
 955         drm_connector_register(connector);
 956         return 0;
 957 }
 958
 959 static struct drm_framebuffer *
 960 qxl_user_framebuffer_create(struct drm_device *dev,
 961                             struct drm_file *file_priv,
 962                             struct drm_mode_fb_cmd2 *mode_cmd)
 963 {
 964         struct drm_gem_object *obj;
 965         struct qxl_framebuffer *qxl_fb;
 966         int ret;
 967
 968         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 969
 970         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 971         if (qxl_fb == NULL)
 972                 return NULL;
 973
 974         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
 975         if (ret) {
 976                 kfree(qxl_fb);
 977                 drm_gem_object_unreference_unlocked(obj);
 978                 return NULL;
 979         }
 980
 981         return &qxl_fb->base;
 982 }
 983
 984 static const struct drm_mode_config_funcs qxl_mode_funcs = {
 985         .fb_create = qxl_user_framebuffer_create,
 986 };
 987
 988 int qxl_create_monitors_object(struct qxl_device *qdev)
 989 {
 990         int ret;
 991         struct drm_gem_object *gobj;
 992         int max_allowed = qxl_num_crtc;
 993         int monitors_config_size = sizeof(struct qxl_monitors_config) +
 994                 max_allowed * sizeof(struct qxl_head);
 995
 996         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
 997                                     QXL_GEM_DOMAIN_VRAM,
 998                                     false, false, NULL, &gobj);
 999         if (ret) {
1000                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1001                 return -ENOMEM;
1002         }
1003         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1004
1005         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1006         if (ret)
1007                 return ret;
1008
1009         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1010         if (ret) {
1011                 qxl_bo_unreserve(qdev->monitors_config_bo);
1012                 return ret;
1013         }
1014
1015         qxl_bo_unreserve(qdev->monitors_config_bo);
1016
1017         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1018
1019         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1020         qdev->ram_header->monitors_config =
1021                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1022
1023         memset(qdev->monitors_config, 0, monitors_config_size);
1024         qdev->monitors_config->max_allowed = max_allowed;
1025         return 0;
1026 }
1027
1028 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1029 {
1030         int ret;
1031
1032         qdev->monitors_config = NULL;
1033         qdev->ram_header->monitors_config = 0;
1034
1035         qxl_bo_kunmap(qdev->monitors_config_bo);
1036         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1037         if (ret)
1038                 return ret;
1039
1040         qxl_bo_unpin(qdev->monitors_config_bo);
1041         qxl_bo_unreserve(qdev->monitors_config_bo);
1042
1043         qxl_bo_unref(&qdev->monitors_config_bo);
1044         return 0;
1045 }
1046
1047 int qxl_modeset_init(struct qxl_device *qdev)
1048 {
1049         int i;
1050         int ret;
1051
1052         drm_mode_config_init(qdev->ddev);
1053
1054         ret = qxl_create_monitors_object(qdev);
1055         if (ret)
1056                 return ret;
1057
1058         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1059
1060         /* modes will be validated against the framebuffer size */
1061         qdev->ddev->mode_config.min_width = 320;
1062         qdev->ddev->mode_config.min_height = 200;
1063         qdev->ddev->mode_config.max_width = 8192;
1064         qdev->ddev->mode_config.max_height = 8192;
1065
1066         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1067
1068         qxl_mode_create_hotplug_mode_update_property(qdev);
1069
1070         for (i = 0 ; i < qxl_num_crtc; ++i) {
1071                 qdev_crtc_init(qdev->ddev, i);
1072                 qdev_output_init(qdev->ddev, i);
1073         }
1074
1075         qdev->mode_info.mode_config_initialized = true;
1076
1077         /* primary surface must be created by this point, to allow
1078          * issuing command queue commands and having them read by
1079          * spice server. */
1080         qxl_fbdev_init(qdev);
1081         return 0;
1082 }
1083
1084 void qxl_modeset_fini(struct qxl_device *qdev)
1085 {
1086         qxl_fbdev_fini(qdev);
1087
1088         qxl_destroy_monitors_object(qdev);
1089         if (qdev->mode_info.mode_config_initialized) {
1090                 drm_mode_config_cleanup(qdev->ddev);
1091                 qdev->mode_info.mode_config_initialized = false;
1092         }
1093 }