kernel/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 static void qxl_update_offset_props(struct qxl_device *qdev)
 105 {
 106         struct drm_device *dev = qdev->ddev;
 107         struct drm_connector *connector;
 108         struct qxl_output *output;
 109         struct qxl_head *head;
 110
 111         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 112                 output = drm_connector_to_qxl_output(connector);
 113
 114                 head = &qdev->client_monitors_config->heads[output->index];
 115
 116                 drm_object_property_set_value(&connector->base,
 117                         dev->mode_config.suggested_x_property, head->x);
 118                 drm_object_property_set_value(&connector->base,
 119                         dev->mode_config.suggested_y_property, head->y);
 120         }
 121 }
 122
 123 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 124 {
 125
 126         struct drm_device *dev = qdev->ddev;
 127         while (qxl_display_copy_rom_client_monitors_config(qdev)) {
 128                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
 129                                  " retrying\n");
 130         }
 131
 132         drm_modeset_lock_all(dev);
 133         qxl_update_offset_props(qdev);
 134         drm_modeset_unlock_all(dev);
 135         if (!drm_helper_hpd_irq_event(qdev->ddev)) {
 136                 /* notify that the monitor configuration changed, to
 137                    adjust at the arbitrary resolution */
 138                 drm_kms_helper_hotplug_event(qdev->ddev);
 139         }
 140 }
 141
 142 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 143                                          unsigned *pwidth,
 144                                          unsigned *pheight)
 145 {
 146         struct drm_device *dev = connector->dev;
 147         struct qxl_device *qdev = dev->dev_private;
 148         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 149         int h = output->index;
 150         struct drm_display_mode *mode = NULL;
 151         struct qxl_head *head;
 152
 153         if (!qdev->client_monitors_config)
 154                 return 0;
 155         head = &qdev->client_monitors_config->heads[h];
 156
 157         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 158                             false);
 159         mode->type |= DRM_MODE_TYPE_PREFERRED;
 160         *pwidth = head->width;
 161         *pheight = head->height;
 162         drm_mode_probed_add(connector, mode);
 163         return 1;
 164 }
 165
 166 static int qxl_add_common_modes(struct drm_connector *connector,
 167                                 unsigned pwidth,
 168                                 unsigned pheight)
 169 {
 170         struct drm_device *dev = connector->dev;
 171         struct drm_display_mode *mode = NULL;
 172         int i;
 173         struct mode_size {
 174                 int w;
 175                 int h;
 176         } common_modes[] = {
 177                 { 640,  480},
 178                 { 720,  480},
 179                 { 800,  600},
 180                 { 848,  480},
 181                 {1024,  768},
 182                 {1152,  768},
 183                 {1280,  720},
 184                 {1280,  800},
 185                 {1280,  854},
 186                 {1280,  960},
 187                 {1280, 1024},
 188                 {1440,  900},
 189                 {1400, 1050},
 190                 {1680, 1050},
 191                 {1600, 1200},
 192                 {1920, 1080},
 193                 {1920, 1200}
 194         };
 195
 196         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 197                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 198                                     60, false, false, false);
 199                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 200                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 201                 drm_mode_probed_add(connector, mode);
 202         }
 203         return i - 1;
 204 }
 205
 206 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 207 {
 208         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 209
 210         drm_crtc_cleanup(crtc);
 211         kfree(qxl_crtc);
 212 }
 213
 214 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 215                               struct drm_framebuffer *fb,
 216                               struct drm_pending_vblank_event *event,
 217                               uint32_t page_flip_flags)
 218 {
 219         struct drm_device *dev = crtc->dev;
 220         struct qxl_device *qdev = dev->dev_private;
 221         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 222         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
 223         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
 224         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
 225         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
 226         unsigned long flags;
 227         struct drm_clip_rect norect = {
 228             .x1 = 0,
 229             .y1 = 0,
 230             .x2 = fb->width,
 231             .y2 = fb->height
 232         };
 233         int inc = 1;
 234         int one_clip_rect = 1;
 235         int ret = 0;
 236
 237         crtc->primary->fb = fb;
 238         bo_old->is_primary = false;
 239         bo->is_primary = true;
 240
 241         ret = qxl_bo_reserve(bo, false);
 242         if (ret)
 243                 return ret;
 244
 245         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 246                           &norect, one_clip_rect, inc);
 247
 248         drm_vblank_get(dev, qcrtc->index);
 249
 250         if (event) {
 251                 spin_lock_irqsave(&dev->event_lock, flags);
 252                 drm_send_vblank_event(dev, qcrtc->index, event);
 253                 spin_unlock_irqrestore(&dev->event_lock, flags);
 254         }
 255         drm_vblank_put(dev, qcrtc->index);
 256
 257         qxl_bo_unreserve(bo);
 258
 259         return 0;
 260 }
 261
 262 static int
 263 qxl_hide_cursor(struct qxl_device *qdev)
 264 {
 265         struct qxl_release *release;
 266         struct qxl_cursor_cmd *cmd;
 267         int ret;
 268
 269         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 270                                          &release, NULL);
 271         if (ret)
 272                 return ret;
 273
 274         ret = qxl_release_reserve_list(release, true);
 275         if (ret) {
 276                 qxl_release_free(qdev, release);
 277                 return ret;
 278         }
 279
 280         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 281         cmd->type = QXL_CURSOR_HIDE;
 282         qxl_release_unmap(qdev, release, &cmd->release_info);
 283
 284         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 285         qxl_release_fence_buffer_objects(release);
 286         return 0;
 287 }
 288
 289 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 290                                 struct drm_file *file_priv,
 291                                 uint32_t handle,
 292                                 uint32_t width,
 293                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 294 {
 295         struct drm_device *dev = crtc->dev;
 296         struct qxl_device *qdev = dev->dev_private;
 297         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 298         struct drm_gem_object *obj;
 299         struct qxl_cursor *cursor;
 300         struct qxl_cursor_cmd *cmd;
 301         struct qxl_bo *cursor_bo, *user_bo;
 302         struct qxl_release *release;
 303         void *user_ptr;
 304
 305         int size = 64*64*4;
 306         int ret = 0;
 307         if (!handle)
 308                 return qxl_hide_cursor(qdev);
 309
 310         obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
 311         if (!obj) {
 312                 DRM_ERROR("cannot find cursor object\n");
 313                 return -ENOENT;
 314         }
 315
 316         user_bo = gem_to_qxl_bo(obj);
 317
 318         ret = qxl_bo_reserve(user_bo, false);
 319         if (ret)
 320                 goto out_unref;
 321
 322         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 323         qxl_bo_unreserve(user_bo);
 324         if (ret)
 325                 goto out_unref;
 326
 327         ret = qxl_bo_kmap(user_bo, &user_ptr);
 328         if (ret)
 329                 goto out_unpin;
 330
 331         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 332                                          QXL_RELEASE_CURSOR_CMD,
 333                                          &release, NULL);
 334         if (ret)
 335                 goto out_kunmap;
 336
 337         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 338                            &cursor_bo);
 339         if (ret)
 340                 goto out_free_release;
 341
 342         ret = qxl_release_reserve_list(release, false);
 343         if (ret)
 344                 goto out_free_bo;
 345
 346         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 347         if (ret)
 348                 goto out_backoff;
 349
 350         cursor->header.unique = 0;
 351         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 352         cursor->header.width = 64;
 353         cursor->header.height = 64;
 354         cursor->header.hot_spot_x = hot_x;
 355         cursor->header.hot_spot_y = hot_y;
 356         cursor->data_size = size;
 357         cursor->chunk.next_chunk = 0;
 358         cursor->chunk.prev_chunk = 0;
 359         cursor->chunk.data_size = size;
 360
 361         memcpy(cursor->chunk.data, user_ptr, size);
 362
 363         qxl_bo_kunmap(cursor_bo);
 364
 365         qxl_bo_kunmap(user_bo);
 366
 367         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 368         cmd->type = QXL_CURSOR_SET;
 369         cmd->u.set.position.x = qcrtc->cur_x;
 370         cmd->u.set.position.y = qcrtc->cur_y;
 371
 372         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 373
 374         cmd->u.set.visible = 1;
 375         qxl_release_unmap(qdev, release, &cmd->release_info);
 376
 377         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 378         qxl_release_fence_buffer_objects(release);
 379
 380         /* finish with the userspace bo */
 381         ret = qxl_bo_reserve(user_bo, false);
 382         if (!ret) {
 383                 qxl_bo_unpin(user_bo);
 384                 qxl_bo_unreserve(user_bo);
 385         }
 386         drm_gem_object_unreference_unlocked(obj);
 387
 388         qxl_bo_unref(&cursor_bo);
 389
 390         return ret;
 391
 392 out_backoff:
 393         qxl_release_backoff_reserve_list(release);
 394 out_free_bo:
 395         qxl_bo_unref(&cursor_bo);
 396 out_free_release:
 397         qxl_release_free(qdev, release);
 398 out_kunmap:
 399         qxl_bo_kunmap(user_bo);
 400 out_unpin:
 401         qxl_bo_unpin(user_bo);
 402 out_unref:
 403         drm_gem_object_unreference_unlocked(obj);
 404         return ret;
 405 }
 406
 407 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 408                                 int x, int y)
 409 {
 410         struct drm_device *dev = crtc->dev;
 411         struct qxl_device *qdev = dev->dev_private;
 412         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 413         struct qxl_release *release;
 414         struct qxl_cursor_cmd *cmd;
 415         int ret;
 416
 417         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 418                                    &release, NULL);
 419         if (ret)
 420                 return ret;
 421
 422         ret = qxl_release_reserve_list(release, true);
 423         if (ret) {
 424                 qxl_release_free(qdev, release);
 425                 return ret;
 426         }
 427
 428         qcrtc->cur_x = x;
 429         qcrtc->cur_y = y;
 430
 431         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 432         cmd->type = QXL_CURSOR_MOVE;
 433         cmd->u.position.x = qcrtc->cur_x;
 434         cmd->u.position.y = qcrtc->cur_y;
 435         qxl_release_unmap(qdev, release, &cmd->release_info);
 436
 437         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 438         qxl_release_fence_buffer_objects(release);
 439
 440         return 0;
 441 }
 442
 443
 444 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 445         .cursor_set2 = qxl_crtc_cursor_set2,
 446         .cursor_move = qxl_crtc_cursor_move,
 447         .set_config = drm_crtc_helper_set_config,
 448         .destroy = qxl_crtc_destroy,
 449         .page_flip = qxl_crtc_page_flip,
 450 };
 451
 452 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 453 {
 454         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 455
 456         if (qxl_fb->obj)
 457                 drm_gem_object_unreference_unlocked(qxl_fb->obj);
 458         drm_framebuffer_cleanup(fb);
 459         kfree(qxl_fb);
 460 }
 461
 462 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 463                                          struct drm_file *file_priv,
 464                                          unsigned flags, unsigned color,
 465                                          struct drm_clip_rect *clips,
 466                                          unsigned num_clips)
 467 {
 468         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 469         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 470         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 471         struct drm_clip_rect norect;
 472         struct qxl_bo *qobj;
 473         int inc = 1;
 474
 475         drm_modeset_lock_all(fb->dev);
 476
 477         qobj = gem_to_qxl_bo(qxl_fb->obj);
 478         /* if we aren't primary surface ignore this */
 479         if (!qobj->is_primary) {
 480                 drm_modeset_unlock_all(fb->dev);
 481                 return 0;
 482         }
 483
 484         if (!num_clips) {
 485                 num_clips = 1;
 486                 clips = &norect;
 487                 norect.x1 = norect.y1 = 0;
 488                 norect.x2 = fb->width;
 489                 norect.y2 = fb->height;
 490         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 491                 num_clips /= 2;
 492                 inc = 2; /* skip source rects */
 493         }
 494
 495         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 496                           clips, num_clips, inc);
 497
 498         drm_modeset_unlock_all(fb->dev);
 499
 500         return 0;
 501 }
 502
 503 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 504         .destroy = qxl_user_framebuffer_destroy,
 505         .dirty = qxl_framebuffer_surface_dirty,
 506 /*      TODO?
 507  *      .create_handle = qxl_user_framebuffer_create_handle, */
 508 };
 509
 510 int
 511 qxl_framebuffer_init(struct drm_device *dev,
 512                      struct qxl_framebuffer *qfb,
 513                      struct drm_mode_fb_cmd2 *mode_cmd,
 514                      struct drm_gem_object *obj)
 515 {
 516         int ret;
 517
 518         qfb->obj = obj;
 519         ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
 520         if (ret) {
 521                 qfb->obj = NULL;
 522                 return ret;
 523         }
 524         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 525         return 0;
 526 }
 527
 528 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 529 {
 530 }
 531
 532 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 533                                   const struct drm_display_mode *mode,
 534                                   struct drm_display_mode *adjusted_mode)
 535 {
 536         struct drm_device *dev = crtc->dev;
 537         struct qxl_device *qdev = dev->dev_private;
 538
 539         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 540                    __func__,
 541                    mode->hdisplay, mode->vdisplay,
 542                    adjusted_mode->hdisplay,
 543                    adjusted_mode->vdisplay);
 544         return true;
 545 }
 546
 547 void
 548 qxl_send_monitors_config(struct qxl_device *qdev)
 549 {
 550         int i;
 551
 552         BUG_ON(!qdev->ram_header->monitors_config);
 553
 554         if (qdev->monitors_config->count == 0) {
 555                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 556                 return;
 557         }
 558         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 559                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 560
 561                 if (head->y > 8192 || head->x > 8192 ||
 562                     head->width > 8192 || head->height > 8192) {
 563                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 564                                   i, head->width, head->height,
 565                                   head->x, head->y);
 566                         return;
 567                 }
 568         }
 569         qxl_io_monitors_config(qdev);
 570 }
 571
 572 static void qxl_monitors_config_set(struct qxl_device *qdev,
 573                                     int index,
 574                                     unsigned x, unsigned y,
 575                                     unsigned width, unsigned height,
 576                                     unsigned surf_id)
 577 {
 578         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 579         qdev->monitors_config->heads[index].x = x;
 580         qdev->monitors_config->heads[index].y = y;
 581         qdev->monitors_config->heads[index].width = width;
 582         qdev->monitors_config->heads[index].height = height;
 583         qdev->monitors_config->heads[index].surface_id = surf_id;
 584
 585 }
 586
 587 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 588                                struct drm_display_mode *mode,
 589                                struct drm_display_mode *adjusted_mode,
 590                                int x, int y,
 591                                struct drm_framebuffer *old_fb)
 592 {
 593         struct drm_device *dev = crtc->dev;
 594         struct qxl_device *qdev = dev->dev_private;
 595         struct qxl_framebuffer *qfb;
 596         struct qxl_bo *bo, *old_bo = NULL;
 597         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 598         bool recreate_primary = false;
 599         int ret;
 600         int surf_id;
 601         if (!crtc->primary->fb) {
 602                 DRM_DEBUG_KMS("No FB bound\n");
 603                 return 0;
 604         }
 605
 606         if (old_fb) {
 607                 qfb = to_qxl_framebuffer(old_fb);
 608                 old_bo = gem_to_qxl_bo(qfb->obj);
 609         }
 610         qfb = to_qxl_framebuffer(crtc->primary->fb);
 611         bo = gem_to_qxl_bo(qfb->obj);
 612         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 613                   x, y,
 614                   mode->hdisplay, mode->vdisplay,
 615                   adjusted_mode->hdisplay,
 616                   adjusted_mode->vdisplay);
 617
 618         if (qcrtc->index == 0)
 619                 recreate_primary = true;
 620
 621         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 622                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 623                 return -EINVAL;
 624         }
 625
 626         ret = qxl_bo_reserve(bo, false);
 627         if (ret != 0)
 628                 return ret;
 629         ret = qxl_bo_pin(bo, bo->type, NULL);
 630         if (ret != 0) {
 631                 qxl_bo_unreserve(bo);
 632                 return -EINVAL;
 633         }
 634         qxl_bo_unreserve(bo);
 635         if (recreate_primary) {
 636                 qxl_io_destroy_primary(qdev);
 637                 qxl_io_log(qdev,
 638                            "recreate primary: %dx%d,%d,%d\n",
 639                            bo->surf.width, bo->surf.height,
 640                            bo->surf.stride, bo->surf.format);
 641                 qxl_io_create_primary(qdev, 0, bo);
 642                 bo->is_primary = true;
 643         }
 644
 645         if (bo->is_primary) {
 646                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 647                 surf_id = 0;
 648         } else {
 649                 surf_id = bo->surface_id;
 650         }
 651
 652         if (old_bo && old_bo != bo) {
 653                 old_bo->is_primary = false;
 654                 ret = qxl_bo_reserve(old_bo, false);
 655                 qxl_bo_unpin(old_bo);
 656                 qxl_bo_unreserve(old_bo);
 657         }
 658
 659         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 660                                 mode->hdisplay,
 661                                 mode->vdisplay, surf_id);
 662         return 0;
 663 }
 664
 665 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 666 {
 667         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 668                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 669                   crtc->x, crtc->y, crtc->enabled);
 670 }
 671
 672 static void qxl_crtc_commit(struct drm_crtc *crtc)
 673 {
 674         DRM_DEBUG("\n");
 675 }
 676
 677 static void qxl_crtc_disable(struct drm_crtc *crtc)
 678 {
 679         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 680         struct drm_device *dev = crtc->dev;
 681         struct qxl_device *qdev = dev->dev_private;
 682         if (crtc->primary->fb) {
 683                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 684                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 685                 int ret;
 686                 ret = qxl_bo_reserve(bo, false);
 687                 qxl_bo_unpin(bo);
 688                 qxl_bo_unreserve(bo);
 689                 crtc->primary->fb = NULL;
 690         }
 691
 692         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 693
 694         qxl_send_monitors_config(qdev);
 695 }
 696
 697 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 698         .dpms = qxl_crtc_dpms,
 699         .disable = qxl_crtc_disable,
 700         .mode_fixup = qxl_crtc_mode_fixup,
 701         .mode_set = qxl_crtc_mode_set,
 702         .prepare = qxl_crtc_prepare,
 703         .commit = qxl_crtc_commit,
 704 };
 705
 706 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 707 {
 708         struct qxl_crtc *qxl_crtc;
 709
 710         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 711         if (!qxl_crtc)
 712                 return -ENOMEM;
 713
 714         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 715         qxl_crtc->index = crtc_id;
 716         drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
 717         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 718         return 0;
 719 }
 720
 721 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 722 {
 723         DRM_DEBUG("\n");
 724 }
 725
 726 static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
 727                                const struct drm_display_mode *mode,
 728                                struct drm_display_mode *adjusted_mode)
 729 {
 730         DRM_DEBUG("\n");
 731         return true;
 732 }
 733
 734 static void qxl_enc_prepare(struct drm_encoder *encoder)
 735 {
 736         DRM_DEBUG("\n");
 737 }
 738
 739 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 740                 struct drm_encoder *encoder)
 741 {
 742         int i;
 743         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 744         struct qxl_head *head;
 745         struct drm_display_mode *mode;
 746
 747         BUG_ON(!encoder);
 748         /* TODO: ugly, do better */
 749         i = output->index;
 750         if (!qdev->monitors_config ||
 751             qdev->monitors_config->max_allowed <= i) {
 752                 DRM_ERROR(
 753                 "head number too large or missing monitors config: %p, %d",
 754                 qdev->monitors_config,
 755                 qdev->monitors_config ?
 756                         qdev->monitors_config->max_allowed : -1);
 757                 return;
 758         }
 759         if (!encoder->crtc) {
 760                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 761                 return;
 762         }
 763         if (i != 0)
 764                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 765         head = &qdev->monitors_config->heads[i];
 766         head->id = i;
 767         if (encoder->crtc->enabled) {
 768                 mode = &encoder->crtc->mode;
 769                 head->width = mode->hdisplay;
 770                 head->height = mode->vdisplay;
 771                 head->x = encoder->crtc->x;
 772                 head->y = encoder->crtc->y;
 773                 if (qdev->monitors_config->count < i + 1)
 774                         qdev->monitors_config->count = i + 1;
 775         } else {
 776                 head->width = 0;
 777                 head->height = 0;
 778                 head->x = 0;
 779                 head->y = 0;
 780         }
 781         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 782                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 783         head->flags = 0;
 784         /* TODO - somewhere else to call this for multiple monitors
 785          * (config_commit?) */
 786         qxl_send_monitors_config(qdev);
 787 }
 788
 789 static void qxl_enc_commit(struct drm_encoder *encoder)
 790 {
 791         struct qxl_device *qdev = encoder->dev->dev_private;
 792
 793         qxl_write_monitors_config_for_encoder(qdev, encoder);
 794         DRM_DEBUG("\n");
 795 }
 796
 797 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 798                                 struct drm_display_mode *mode,
 799                                 struct drm_display_mode *adjusted_mode)
 800 {
 801         DRM_DEBUG("\n");
 802 }
 803
 804 static int qxl_conn_get_modes(struct drm_connector *connector)
 805 {
 806         int ret = 0;
 807         struct qxl_device *qdev = connector->dev->dev_private;
 808         unsigned pwidth = 1024;
 809         unsigned pheight = 768;
 810
 811         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 812         /* TODO: what should we do here? only show the configured modes for the
 813          * device, or allow the full list, or both? */
 814         if (qdev->monitors_config && qdev->monitors_config->count) {
 815                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 816                 if (ret < 0)
 817                         return ret;
 818         }
 819         ret += qxl_add_common_modes(connector, pwidth, pheight);
 820         return ret;
 821 }
 822
 823 static int qxl_conn_mode_valid(struct drm_connector *connector,
 824                                struct drm_display_mode *mode)
 825 {
 826         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 827          * TODO: check that the mode fits in the framebuffer */
 828         DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
 829                   mode->vdisplay, mode->status);
 830         return MODE_OK;
 831 }
 832
 833 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 834 {
 835         struct qxl_output *qxl_output =
 836                 drm_connector_to_qxl_output(connector);
 837
 838         DRM_DEBUG("\n");
 839         return &qxl_output->enc;
 840 }
 841
 842
 843 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 844         .dpms = qxl_enc_dpms,
 845         .mode_fixup = qxl_enc_mode_fixup,
 846         .prepare = qxl_enc_prepare,
 847         .mode_set = qxl_enc_mode_set,
 848         .commit = qxl_enc_commit,
 849 };
 850
 851 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 852         .get_modes = qxl_conn_get_modes,
 853         .mode_valid = qxl_conn_mode_valid,
 854         .best_encoder = qxl_best_encoder,
 855 };
 856
 857 static void qxl_conn_save(struct drm_connector *connector)
 858 {
 859         DRM_DEBUG("\n");
 860 }
 861
 862 static void qxl_conn_restore(struct drm_connector *connector)
 863 {
 864         DRM_DEBUG("\n");
 865 }
 866
 867 static enum drm_connector_status qxl_conn_detect(
 868                         struct drm_connector *connector,
 869                         bool force)
 870 {
 871         struct qxl_output *output =
 872                 drm_connector_to_qxl_output(connector);
 873         struct drm_device *ddev = connector->dev;
 874         struct qxl_device *qdev = ddev->dev_private;
 875         int connected;
 876
 877         /* The first monitor is always connected */
 878         connected = (output->index == 0) ||
 879                     (qdev->client_monitors_config &&
 880                      qdev->client_monitors_config->count > output->index &&
 881                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
 882
 883         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 884         if (!connected)
 885                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 886
 887         return connected ? connector_status_connected
 888                          : connector_status_disconnected;
 889 }
 890
 891 static int qxl_conn_set_property(struct drm_connector *connector,
 892                                    struct drm_property *property,
 893                                    uint64_t value)
 894 {
 895         DRM_DEBUG("\n");
 896         return 0;
 897 }
 898
 899 static void qxl_conn_destroy(struct drm_connector *connector)
 900 {
 901         struct qxl_output *qxl_output =
 902                 drm_connector_to_qxl_output(connector);
 903
 904         drm_connector_unregister(connector);
 905         drm_connector_cleanup(connector);
 906         kfree(qxl_output);
 907 }
 908
 909 static const struct drm_connector_funcs qxl_connector_funcs = {
 910         .dpms = drm_helper_connector_dpms,
 911         .save = qxl_conn_save,
 912         .restore = qxl_conn_restore,
 913         .detect = qxl_conn_detect,
 914         .fill_modes = drm_helper_probe_single_connector_modes_nomerge,
 915         .set_property = qxl_conn_set_property,
 916         .destroy = qxl_conn_destroy,
 917 };
 918
 919 static void qxl_enc_destroy(struct drm_encoder *encoder)
 920 {
 921         drm_encoder_cleanup(encoder);
 922 }
 923
 924 static const struct drm_encoder_funcs qxl_enc_funcs = {
 925         .destroy = qxl_enc_destroy,
 926 };
 927
 928 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 929 {
 930         if (qdev->hotplug_mode_update_property)
 931                 return 0;
 932
 933         qdev->hotplug_mode_update_property =
 934                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 935                                           "hotplug_mode_update", 0, 1);
 936
 937         return 0;
 938 }
 939
 940 static int qdev_output_init(struct drm_device *dev, int num_output)
 941 {
 942         struct qxl_device *qdev = dev->dev_private;
 943         struct qxl_output *qxl_output;
 944         struct drm_connector *connector;
 945         struct drm_encoder *encoder;
 946
 947         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 948         if (!qxl_output)
 949                 return -ENOMEM;
 950
 951         qxl_output->index = num_output;
 952
 953         connector = &qxl_output->base;
 954         encoder = &qxl_output->enc;
 955         drm_connector_init(dev, &qxl_output->base,
 956                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 957
 958         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 959                          DRM_MODE_ENCODER_VIRTUAL);
 960
 961         /* we get HPD via client monitors config */
 962         connector->polled = DRM_CONNECTOR_POLL_HPD;
 963         encoder->possible_crtcs = 1 << num_output;
 964         drm_mode_connector_attach_encoder(&qxl_output->base,
 965                                           &qxl_output->enc);
 966         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 967         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 968
 969         drm_object_attach_property(&connector->base,
 970                                    qdev->hotplug_mode_update_property, 0);
 971         drm_object_attach_property(&connector->base,
 972                                    dev->mode_config.suggested_x_property, 0);
 973         drm_object_attach_property(&connector->base,
 974                                    dev->mode_config.suggested_y_property, 0);
 975         drm_connector_register(connector);
 976         return 0;
 977 }
 978
 979 static struct drm_framebuffer *
 980 qxl_user_framebuffer_create(struct drm_device *dev,
 981                             struct drm_file *file_priv,
 982                             struct drm_mode_fb_cmd2 *mode_cmd)
 983 {
 984         struct drm_gem_object *obj;
 985         struct qxl_framebuffer *qxl_fb;
 986         int ret;
 987
 988         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 989
 990         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 991         if (qxl_fb == NULL)
 992                 return NULL;
 993
 994         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
 995         if (ret) {
 996                 kfree(qxl_fb);
 997                 drm_gem_object_unreference_unlocked(obj);
 998                 return NULL;
 999         }
1000
1001         return &qxl_fb->base;
1002 }
1003
1004 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1005         .fb_create = qxl_user_framebuffer_create,
1006 };
1007
1008 int qxl_create_monitors_object(struct qxl_device *qdev)
1009 {
1010         int ret;
1011         struct drm_gem_object *gobj;
1012         int max_allowed = qxl_num_crtc;
1013         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1014                 max_allowed * sizeof(struct qxl_head);
1015
1016         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1017                                     QXL_GEM_DOMAIN_VRAM,
1018                                     false, false, NULL, &gobj);
1019         if (ret) {
1020                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1021                 return -ENOMEM;
1022         }
1023         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1024
1025         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1026         if (ret)
1027                 return ret;
1028
1029         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1030         if (ret) {
1031                 qxl_bo_unreserve(qdev->monitors_config_bo);
1032                 return ret;
1033         }
1034
1035         qxl_bo_unreserve(qdev->monitors_config_bo);
1036
1037         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1038
1039         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1040         qdev->ram_header->monitors_config =
1041                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1042
1043         memset(qdev->monitors_config, 0, monitors_config_size);
1044         qdev->monitors_config->max_allowed = max_allowed;
1045         return 0;
1046 }
1047
1048 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1049 {
1050         int ret;
1051
1052         qdev->monitors_config = NULL;
1053         qdev->ram_header->monitors_config = 0;
1054
1055         qxl_bo_kunmap(qdev->monitors_config_bo);
1056         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1057         if (ret)
1058                 return ret;
1059
1060         qxl_bo_unpin(qdev->monitors_config_bo);
1061         qxl_bo_unreserve(qdev->monitors_config_bo);
1062
1063         qxl_bo_unref(&qdev->monitors_config_bo);
1064         return 0;
1065 }
1066
1067 int qxl_modeset_init(struct qxl_device *qdev)
1068 {
1069         int i;
1070         int ret;
1071
1072         drm_mode_config_init(qdev->ddev);
1073
1074         ret = qxl_create_monitors_object(qdev);
1075         if (ret)
1076                 return ret;
1077
1078         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1079
1080         /* modes will be validated against the framebuffer size */
1081         qdev->ddev->mode_config.min_width = 320;
1082         qdev->ddev->mode_config.min_height = 200;
1083         qdev->ddev->mode_config.max_width = 8192;
1084         qdev->ddev->mode_config.max_height = 8192;
1085
1086         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1087
1088         drm_mode_create_suggested_offset_properties(qdev->ddev);
1089         qxl_mode_create_hotplug_mode_update_property(qdev);
1090
1091         for (i = 0 ; i < qxl_num_crtc; ++i) {
1092                 qdev_crtc_init(qdev->ddev, i);
1093                 qdev_output_init(qdev->ddev, i);
1094         }
1095
1096         qdev->mode_info.mode_config_initialized = true;
1097
1098         /* primary surface must be created by this point, to allow
1099          * issuing command queue commands and having them read by
1100          * spice server. */
1101         qxl_fbdev_init(qdev);
1102         return 0;
1103 }
1104
1105 void qxl_modeset_fini(struct qxl_device *qdev)
1106 {
1107         qxl_fbdev_fini(qdev);
1108
1109         qxl_destroy_monitors_object(qdev);
1110         if (qdev->mode_info.mode_config_initialized) {
1111                 drm_mode_config_cleanup(qdev->ddev);
1112                 qdev->mode_info.mode_config_initialized = false;
1113         }
1114 }