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 (%zd) != %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         /* remember the last custom size for mode validation */
 164         qdev->monitors_config_width = mode->hdisplay;
 165         qdev->monitors_config_height = mode->vdisplay;
 166         return 1;
 167 }
 168
 169 static struct mode_size {
 170         int w;
 171         int h;
 172 } common_modes[] = {
 173         { 640,  480},
 174         { 720,  480},
 175         { 800,  600},
 176         { 848,  480},
 177         {1024,  768},
 178         {1152,  768},
 179         {1280,  720},
 180         {1280,  800},
 181         {1280,  854},
 182         {1280,  960},
 183         {1280, 1024},
 184         {1440,  900},
 185         {1400, 1050},
 186         {1680, 1050},
 187         {1600, 1200},
 188         {1920, 1080},
 189         {1920, 1200}
 190 };
 191
 192 static int qxl_add_common_modes(struct drm_connector *connector,
 193                                 unsigned pwidth,
 194                                 unsigned pheight)
 195 {
 196         struct drm_device *dev = connector->dev;
 197         struct drm_display_mode *mode = NULL;
 198         int i;
 199         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 200                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 201                                     60, false, false, false);
 202                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 203                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 204                 drm_mode_probed_add(connector, mode);
 205         }
 206         return i - 1;
 207 }
 208
 209 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 210 {
 211         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 212
 213         drm_crtc_cleanup(crtc);
 214         qxl_bo_unref(&qxl_crtc->cursor_bo);
 215         kfree(qxl_crtc);
 216 }
 217
 218 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 219                               struct drm_framebuffer *fb,
 220                               struct drm_pending_vblank_event *event,
 221                               uint32_t page_flip_flags)
 222 {
 223         struct drm_device *dev = crtc->dev;
 224         struct qxl_device *qdev = dev->dev_private;
 225         struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
 226         struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
 227         struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
 228         struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
 229         unsigned long flags;
 230         struct drm_clip_rect norect = {
 231             .x1 = 0,
 232             .y1 = 0,
 233             .x2 = fb->width,
 234             .y2 = fb->height
 235         };
 236         int inc = 1;
 237         int one_clip_rect = 1;
 238         int ret = 0;
 239
 240         crtc->primary->fb = fb;
 241         bo_old->is_primary = false;
 242         bo->is_primary = true;
 243
 244         ret = qxl_bo_reserve(bo, false);
 245         if (ret)
 246                 return ret;
 247         ret = qxl_bo_pin(bo, bo->type, NULL);
 248         qxl_bo_unreserve(bo);
 249         if (ret)
 250                 return ret;
 251
 252         qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 253                           &norect, one_clip_rect, inc);
 254
 255         drm_crtc_vblank_get(crtc);
 256
 257         if (event) {
 258                 spin_lock_irqsave(&dev->event_lock, flags);
 259                 drm_crtc_send_vblank_event(crtc, event);
 260                 spin_unlock_irqrestore(&dev->event_lock, flags);
 261         }
 262         drm_crtc_vblank_put(crtc);
 263
 264         ret = qxl_bo_reserve(bo, false);
 265         if (!ret) {
 266                 qxl_bo_unpin(bo);
 267                 qxl_bo_unreserve(bo);
 268         }
 269
 270         return 0;
 271 }
 272
 273 static int
 274 qxl_hide_cursor(struct qxl_device *qdev)
 275 {
 276         struct qxl_release *release;
 277         struct qxl_cursor_cmd *cmd;
 278         int ret;
 279
 280         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 281                                          &release, NULL);
 282         if (ret)
 283                 return ret;
 284
 285         ret = qxl_release_reserve_list(release, true);
 286         if (ret) {
 287                 qxl_release_free(qdev, release);
 288                 return ret;
 289         }
 290
 291         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 292         cmd->type = QXL_CURSOR_HIDE;
 293         qxl_release_unmap(qdev, release, &cmd->release_info);
 294
 295         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 296         qxl_release_fence_buffer_objects(release);
 297         return 0;
 298 }
 299
 300 static int qxl_crtc_apply_cursor(struct drm_crtc *crtc)
 301 {
 302         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 303         struct drm_device *dev = crtc->dev;
 304         struct qxl_device *qdev = dev->dev_private;
 305         struct qxl_cursor_cmd *cmd;
 306         struct qxl_release *release;
 307         int ret = 0;
 308
 309         if (!qcrtc->cursor_bo)
 310                 return 0;
 311
 312         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 313                                          QXL_RELEASE_CURSOR_CMD,
 314                                          &release, NULL);
 315         if (ret)
 316                 return ret;
 317
 318         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 319         if (ret)
 320                 goto out_free_release;
 321
 322         ret = qxl_release_reserve_list(release, false);
 323         if (ret)
 324                 goto out_free_release;
 325
 326         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 327         cmd->type = QXL_CURSOR_SET;
 328         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 329         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 330
 331         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 332
 333         cmd->u.set.visible = 1;
 334         qxl_release_unmap(qdev, release, &cmd->release_info);
 335
 336         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 337         qxl_release_fence_buffer_objects(release);
 338
 339         return ret;
 340
 341 out_free_release:
 342         qxl_release_free(qdev, release);
 343         return ret;
 344 }
 345
 346 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 347                                 struct drm_file *file_priv,
 348                                 uint32_t handle,
 349                                 uint32_t width,
 350                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 351 {
 352         struct drm_device *dev = crtc->dev;
 353         struct qxl_device *qdev = dev->dev_private;
 354         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 355         struct drm_gem_object *obj;
 356         struct qxl_cursor *cursor;
 357         struct qxl_cursor_cmd *cmd;
 358         struct qxl_bo *cursor_bo, *user_bo;
 359         struct qxl_release *release;
 360         void *user_ptr;
 361
 362         int size = 64*64*4;
 363         int ret = 0;
 364         if (!handle)
 365                 return qxl_hide_cursor(qdev);
 366
 367         obj = drm_gem_object_lookup(file_priv, handle);
 368         if (!obj) {
 369                 DRM_ERROR("cannot find cursor object\n");
 370                 return -ENOENT;
 371         }
 372
 373         user_bo = gem_to_qxl_bo(obj);
 374
 375         ret = qxl_bo_reserve(user_bo, false);
 376         if (ret)
 377                 goto out_unref;
 378
 379         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 380         qxl_bo_unreserve(user_bo);
 381         if (ret)
 382                 goto out_unref;
 383
 384         ret = qxl_bo_kmap(user_bo, &user_ptr);
 385         if (ret)
 386                 goto out_unpin;
 387
 388         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 389                                          QXL_RELEASE_CURSOR_CMD,
 390                                          &release, NULL);
 391         if (ret)
 392                 goto out_kunmap;
 393
 394         ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 395                            &cursor_bo);
 396         if (ret)
 397                 goto out_free_release;
 398
 399         ret = qxl_release_reserve_list(release, false);
 400         if (ret)
 401                 goto out_free_bo;
 402
 403         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 404         if (ret)
 405                 goto out_backoff;
 406
 407         cursor->header.unique = 0;
 408         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 409         cursor->header.width = 64;
 410         cursor->header.height = 64;
 411         cursor->header.hot_spot_x = hot_x;
 412         cursor->header.hot_spot_y = hot_y;
 413         cursor->data_size = size;
 414         cursor->chunk.next_chunk = 0;
 415         cursor->chunk.prev_chunk = 0;
 416         cursor->chunk.data_size = size;
 417
 418         memcpy(cursor->chunk.data, user_ptr, size);
 419
 420         qxl_bo_kunmap(cursor_bo);
 421
 422         qxl_bo_kunmap(user_bo);
 423
 424         qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
 425         qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
 426         qcrtc->hot_spot_x = hot_x;
 427         qcrtc->hot_spot_y = hot_y;
 428
 429         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 430         cmd->type = QXL_CURSOR_SET;
 431         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 432         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 433
 434         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 435
 436         cmd->u.set.visible = 1;
 437         qxl_release_unmap(qdev, release, &cmd->release_info);
 438
 439         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 440         qxl_release_fence_buffer_objects(release);
 441
 442         /* finish with the userspace bo */
 443         ret = qxl_bo_reserve(user_bo, false);
 444         if (!ret) {
 445                 qxl_bo_unpin(user_bo);
 446                 qxl_bo_unreserve(user_bo);
 447         }
 448         drm_gem_object_unreference_unlocked(obj);
 449
 450         qxl_bo_unref (&qcrtc->cursor_bo);
 451         qcrtc->cursor_bo = cursor_bo;
 452
 453         return ret;
 454
 455 out_backoff:
 456         qxl_release_backoff_reserve_list(release);
 457 out_free_bo:
 458         qxl_bo_unref(&cursor_bo);
 459 out_free_release:
 460         qxl_release_free(qdev, release);
 461 out_kunmap:
 462         qxl_bo_kunmap(user_bo);
 463 out_unpin:
 464         qxl_bo_unpin(user_bo);
 465 out_unref:
 466         drm_gem_object_unreference_unlocked(obj);
 467         return ret;
 468 }
 469
 470 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 471                                 int x, int y)
 472 {
 473         struct drm_device *dev = crtc->dev;
 474         struct qxl_device *qdev = dev->dev_private;
 475         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 476         struct qxl_release *release;
 477         struct qxl_cursor_cmd *cmd;
 478         int ret;
 479
 480         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 481                                    &release, NULL);
 482         if (ret)
 483                 return ret;
 484
 485         ret = qxl_release_reserve_list(release, true);
 486         if (ret) {
 487                 qxl_release_free(qdev, release);
 488                 return ret;
 489         }
 490
 491         qcrtc->cur_x = x;
 492         qcrtc->cur_y = y;
 493
 494         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 495         cmd->type = QXL_CURSOR_MOVE;
 496         cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 497         cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 498         qxl_release_unmap(qdev, release, &cmd->release_info);
 499
 500         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 501         qxl_release_fence_buffer_objects(release);
 502
 503         return 0;
 504 }
 505
 506
 507 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 508         .cursor_set2 = qxl_crtc_cursor_set2,
 509         .cursor_move = qxl_crtc_cursor_move,
 510         .set_config = drm_crtc_helper_set_config,
 511         .destroy = qxl_crtc_destroy,
 512         .page_flip = qxl_crtc_page_flip,
 513 };
 514
 515 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 516 {
 517         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 518
 519         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 520         drm_framebuffer_cleanup(fb);
 521         kfree(qxl_fb);
 522 }
 523
 524 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 525                                          struct drm_file *file_priv,
 526                                          unsigned flags, unsigned color,
 527                                          struct drm_clip_rect *clips,
 528                                          unsigned num_clips)
 529 {
 530         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 531         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 532         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 533         struct drm_clip_rect norect;
 534         struct qxl_bo *qobj;
 535         int inc = 1;
 536
 537         drm_modeset_lock_all(fb->dev);
 538
 539         qobj = gem_to_qxl_bo(qxl_fb->obj);
 540         /* if we aren't primary surface ignore this */
 541         if (!qobj->is_primary) {
 542                 drm_modeset_unlock_all(fb->dev);
 543                 return 0;
 544         }
 545
 546         if (!num_clips) {
 547                 num_clips = 1;
 548                 clips = &norect;
 549                 norect.x1 = norect.y1 = 0;
 550                 norect.x2 = fb->width;
 551                 norect.y2 = fb->height;
 552         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 553                 num_clips /= 2;
 554                 inc = 2; /* skip source rects */
 555         }
 556
 557         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 558                           clips, num_clips, inc);
 559
 560         drm_modeset_unlock_all(fb->dev);
 561
 562         return 0;
 563 }
 564
 565 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 566         .destroy = qxl_user_framebuffer_destroy,
 567         .dirty = qxl_framebuffer_surface_dirty,
 568 /*      TODO?
 569  *      .create_handle = qxl_user_framebuffer_create_handle, */
 570 };
 571
 572 int
 573 qxl_framebuffer_init(struct drm_device *dev,
 574                      struct qxl_framebuffer *qfb,
 575                      const struct drm_mode_fb_cmd2 *mode_cmd,
 576                      struct drm_gem_object *obj,
 577                      const struct drm_framebuffer_funcs *funcs)
 578 {
 579         int ret;
 580
 581         qfb->obj = obj;
 582         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 583         if (ret) {
 584                 qfb->obj = NULL;
 585                 return ret;
 586         }
 587         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 588         return 0;
 589 }
 590
 591 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 592 {
 593 }
 594
 595 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 596                                   const struct drm_display_mode *mode,
 597                                   struct drm_display_mode *adjusted_mode)
 598 {
 599         struct drm_device *dev = crtc->dev;
 600         struct qxl_device *qdev = dev->dev_private;
 601
 602         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 603                    __func__,
 604                    mode->hdisplay, mode->vdisplay,
 605                    adjusted_mode->hdisplay,
 606                    adjusted_mode->vdisplay);
 607         return true;
 608 }
 609
 610 void
 611 qxl_send_monitors_config(struct qxl_device *qdev)
 612 {
 613         int i;
 614
 615         BUG_ON(!qdev->ram_header->monitors_config);
 616
 617         if (qdev->monitors_config->count == 0) {
 618                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 619                 return;
 620         }
 621         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 622                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 623
 624                 if (head->y > 8192 || head->x > 8192 ||
 625                     head->width > 8192 || head->height > 8192) {
 626                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 627                                   i, head->width, head->height,
 628                                   head->x, head->y);
 629                         return;
 630                 }
 631         }
 632         qxl_io_monitors_config(qdev);
 633 }
 634
 635 static void qxl_monitors_config_set(struct qxl_device *qdev,
 636                                     int index,
 637                                     unsigned x, unsigned y,
 638                                     unsigned width, unsigned height,
 639                                     unsigned surf_id)
 640 {
 641         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 642         qdev->monitors_config->heads[index].x = x;
 643         qdev->monitors_config->heads[index].y = y;
 644         qdev->monitors_config->heads[index].width = width;
 645         qdev->monitors_config->heads[index].height = height;
 646         qdev->monitors_config->heads[index].surface_id = surf_id;
 647
 648 }
 649
 650 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 651                                struct drm_display_mode *mode,
 652                                struct drm_display_mode *adjusted_mode,
 653                                int x, int y,
 654                                struct drm_framebuffer *old_fb)
 655 {
 656         struct drm_device *dev = crtc->dev;
 657         struct qxl_device *qdev = dev->dev_private;
 658         struct qxl_framebuffer *qfb;
 659         struct qxl_bo *bo, *old_bo = NULL;
 660         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 661         bool recreate_primary = false;
 662         int ret;
 663         int surf_id;
 664         if (!crtc->primary->fb) {
 665                 DRM_DEBUG_KMS("No FB bound\n");
 666                 return 0;
 667         }
 668
 669         if (old_fb) {
 670                 qfb = to_qxl_framebuffer(old_fb);
 671                 old_bo = gem_to_qxl_bo(qfb->obj);
 672         }
 673         qfb = to_qxl_framebuffer(crtc->primary->fb);
 674         bo = gem_to_qxl_bo(qfb->obj);
 675         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 676                   x, y,
 677                   mode->hdisplay, mode->vdisplay,
 678                   adjusted_mode->hdisplay,
 679                   adjusted_mode->vdisplay);
 680
 681         if (bo->is_primary == false)
 682                 recreate_primary = true;
 683
 684         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 685                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 686                 return -EINVAL;
 687         }
 688
 689         ret = qxl_bo_reserve(bo, false);
 690         if (ret != 0)
 691                 return ret;
 692         ret = qxl_bo_pin(bo, bo->type, NULL);
 693         if (ret != 0) {
 694                 qxl_bo_unreserve(bo);
 695                 return -EINVAL;
 696         }
 697         qxl_bo_unreserve(bo);
 698         if (recreate_primary) {
 699                 qxl_io_destroy_primary(qdev);
 700                 qxl_io_log(qdev,
 701                            "recreate primary: %dx%d,%d,%d\n",
 702                            bo->surf.width, bo->surf.height,
 703                            bo->surf.stride, bo->surf.format);
 704                 qxl_io_create_primary(qdev, 0, bo);
 705                 bo->is_primary = true;
 706
 707                 ret = qxl_crtc_apply_cursor(crtc);
 708                 if (ret) {
 709                         DRM_ERROR("could not set cursor after modeset");
 710                         ret = 0;
 711                 }
 712         }
 713
 714         if (bo->is_primary) {
 715                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 716                 surf_id = 0;
 717         } else {
 718                 surf_id = bo->surface_id;
 719         }
 720
 721         if (old_bo && old_bo != bo) {
 722                 old_bo->is_primary = false;
 723                 ret = qxl_bo_reserve(old_bo, false);
 724                 qxl_bo_unpin(old_bo);
 725                 qxl_bo_unreserve(old_bo);
 726         }
 727
 728         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 729                                 mode->hdisplay,
 730                                 mode->vdisplay, surf_id);
 731         return 0;
 732 }
 733
 734 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 735 {
 736         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 737                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 738                   crtc->x, crtc->y, crtc->enabled);
 739 }
 740
 741 static void qxl_crtc_commit(struct drm_crtc *crtc)
 742 {
 743         DRM_DEBUG("\n");
 744 }
 745
 746 static void qxl_crtc_disable(struct drm_crtc *crtc)
 747 {
 748         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 749         struct drm_device *dev = crtc->dev;
 750         struct qxl_device *qdev = dev->dev_private;
 751         if (crtc->primary->fb) {
 752                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 753                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 754                 int ret;
 755                 ret = qxl_bo_reserve(bo, false);
 756                 qxl_bo_unpin(bo);
 757                 qxl_bo_unreserve(bo);
 758                 crtc->primary->fb = NULL;
 759         }
 760
 761         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 762
 763         qxl_send_monitors_config(qdev);
 764 }
 765
 766 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 767         .dpms = qxl_crtc_dpms,
 768         .disable = qxl_crtc_disable,
 769         .mode_fixup = qxl_crtc_mode_fixup,
 770         .mode_set = qxl_crtc_mode_set,
 771         .prepare = qxl_crtc_prepare,
 772         .commit = qxl_crtc_commit,
 773 };
 774
 775 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 776 {
 777         struct qxl_crtc *qxl_crtc;
 778
 779         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 780         if (!qxl_crtc)
 781                 return -ENOMEM;
 782
 783         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 784         qxl_crtc->index = crtc_id;
 785         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 786         return 0;
 787 }
 788
 789 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 790 {
 791         DRM_DEBUG("\n");
 792 }
 793
 794 static void qxl_enc_prepare(struct drm_encoder *encoder)
 795 {
 796         DRM_DEBUG("\n");
 797 }
 798
 799 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 800                 struct drm_encoder *encoder)
 801 {
 802         int i;
 803         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 804         struct qxl_head *head;
 805         struct drm_display_mode *mode;
 806
 807         BUG_ON(!encoder);
 808         /* TODO: ugly, do better */
 809         i = output->index;
 810         if (!qdev->monitors_config ||
 811             qdev->monitors_config->max_allowed <= i) {
 812                 DRM_ERROR(
 813                 "head number too large or missing monitors config: %p, %d",
 814                 qdev->monitors_config,
 815                 qdev->monitors_config ?
 816                         qdev->monitors_config->max_allowed : -1);
 817                 return;
 818         }
 819         if (!encoder->crtc) {
 820                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 821                 return;
 822         }
 823         if (i != 0)
 824                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 825         head = &qdev->monitors_config->heads[i];
 826         head->id = i;
 827         if (encoder->crtc->enabled) {
 828                 mode = &encoder->crtc->mode;
 829                 head->width = mode->hdisplay;
 830                 head->height = mode->vdisplay;
 831                 head->x = encoder->crtc->x;
 832                 head->y = encoder->crtc->y;
 833                 if (qdev->monitors_config->count < i + 1)
 834                         qdev->monitors_config->count = i + 1;
 835         } else {
 836                 head->width = 0;
 837                 head->height = 0;
 838                 head->x = 0;
 839                 head->y = 0;
 840         }
 841         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 842                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 843         head->flags = 0;
 844         /* TODO - somewhere else to call this for multiple monitors
 845          * (config_commit?) */
 846         qxl_send_monitors_config(qdev);
 847 }
 848
 849 static void qxl_enc_commit(struct drm_encoder *encoder)
 850 {
 851         struct qxl_device *qdev = encoder->dev->dev_private;
 852
 853         qxl_write_monitors_config_for_encoder(qdev, encoder);
 854         DRM_DEBUG("\n");
 855 }
 856
 857 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 858                                 struct drm_display_mode *mode,
 859                                 struct drm_display_mode *adjusted_mode)
 860 {
 861         DRM_DEBUG("\n");
 862 }
 863
 864 static int qxl_conn_get_modes(struct drm_connector *connector)
 865 {
 866         int ret = 0;
 867         struct qxl_device *qdev = connector->dev->dev_private;
 868         unsigned pwidth = 1024;
 869         unsigned pheight = 768;
 870
 871         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 872         /* TODO: what should we do here? only show the configured modes for the
 873          * device, or allow the full list, or both? */
 874         if (qdev->monitors_config && qdev->monitors_config->count) {
 875                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 876                 if (ret < 0)
 877                         return ret;
 878         }
 879         ret += qxl_add_common_modes(connector, pwidth, pheight);
 880         return ret;
 881 }
 882
 883 static int qxl_conn_mode_valid(struct drm_connector *connector,
 884                                struct drm_display_mode *mode)
 885 {
 886         struct drm_device *ddev = connector->dev;
 887         struct qxl_device *qdev = ddev->dev_private;
 888         int i;
 889
 890         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 891          * TODO: check that the mode fits in the framebuffer */
 892
 893         if(qdev->monitors_config_width == mode->hdisplay &&
 894            qdev->monitors_config_height == mode->vdisplay)
 895                 return MODE_OK;
 896
 897         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 898                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 899                         return MODE_OK;
 900         }
 901         return MODE_BAD;
 902 }
 903
 904 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 905 {
 906         struct qxl_output *qxl_output =
 907                 drm_connector_to_qxl_output(connector);
 908
 909         DRM_DEBUG("\n");
 910         return &qxl_output->enc;
 911 }
 912
 913
 914 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 915         .dpms = qxl_enc_dpms,
 916         .prepare = qxl_enc_prepare,
 917         .mode_set = qxl_enc_mode_set,
 918         .commit = qxl_enc_commit,
 919 };
 920
 921 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 922         .get_modes = qxl_conn_get_modes,
 923         .mode_valid = qxl_conn_mode_valid,
 924         .best_encoder = qxl_best_encoder,
 925 };
 926
 927 static enum drm_connector_status qxl_conn_detect(
 928                         struct drm_connector *connector,
 929                         bool force)
 930 {
 931         struct qxl_output *output =
 932                 drm_connector_to_qxl_output(connector);
 933         struct drm_device *ddev = connector->dev;
 934         struct qxl_device *qdev = ddev->dev_private;
 935         bool connected = false;
 936
 937         /* The first monitor is always connected */
 938         if (!qdev->client_monitors_config) {
 939                 if (output->index == 0)
 940                         connected = true;
 941         } else
 942                 connected = qdev->client_monitors_config->count > output->index &&
 943                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 944
 945         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 946         if (!connected)
 947                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 948
 949         return connected ? connector_status_connected
 950                          : connector_status_disconnected;
 951 }
 952
 953 static int qxl_conn_set_property(struct drm_connector *connector,
 954                                    struct drm_property *property,
 955                                    uint64_t value)
 956 {
 957         DRM_DEBUG("\n");
 958         return 0;
 959 }
 960
 961 static void qxl_conn_destroy(struct drm_connector *connector)
 962 {
 963         struct qxl_output *qxl_output =
 964                 drm_connector_to_qxl_output(connector);
 965
 966         drm_connector_unregister(connector);
 967         drm_connector_cleanup(connector);
 968         kfree(qxl_output);
 969 }
 970
 971 static const struct drm_connector_funcs qxl_connector_funcs = {
 972         .dpms = drm_helper_connector_dpms,
 973         .detect = qxl_conn_detect,
 974         .fill_modes = drm_helper_probe_single_connector_modes,
 975         .set_property = qxl_conn_set_property,
 976         .destroy = qxl_conn_destroy,
 977 };
 978
 979 static void qxl_enc_destroy(struct drm_encoder *encoder)
 980 {
 981         drm_encoder_cleanup(encoder);
 982 }
 983
 984 static const struct drm_encoder_funcs qxl_enc_funcs = {
 985         .destroy = qxl_enc_destroy,
 986 };
 987
 988 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 989 {
 990         if (qdev->hotplug_mode_update_property)
 991                 return 0;
 992
 993         qdev->hotplug_mode_update_property =
 994                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 995                                           "hotplug_mode_update", 0, 1);
 996
 997         return 0;
 998 }
 999
1000 static int qdev_output_init(struct drm_device *dev, int num_output)
1001 {
1002         struct qxl_device *qdev = dev->dev_private;
1003         struct qxl_output *qxl_output;
1004         struct drm_connector *connector;
1005         struct drm_encoder *encoder;
1006
1007         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1008         if (!qxl_output)
1009                 return -ENOMEM;
1010
1011         qxl_output->index = num_output;
1012
1013         connector = &qxl_output->base;
1014         encoder = &qxl_output->enc;
1015         drm_connector_init(dev, &qxl_output->base,
1016                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1017
1018         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1019                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1020
1021         /* we get HPD via client monitors config */
1022         connector->polled = DRM_CONNECTOR_POLL_HPD;
1023         encoder->possible_crtcs = 1 << num_output;
1024         drm_mode_connector_attach_encoder(&qxl_output->base,
1025                                           &qxl_output->enc);
1026         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1027         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1028
1029         drm_object_attach_property(&connector->base,
1030                                    qdev->hotplug_mode_update_property, 0);
1031         drm_object_attach_property(&connector->base,
1032                                    dev->mode_config.suggested_x_property, 0);
1033         drm_object_attach_property(&connector->base,
1034                                    dev->mode_config.suggested_y_property, 0);
1035         drm_connector_register(connector);
1036         return 0;
1037 }
1038
1039 static struct drm_framebuffer *
1040 qxl_user_framebuffer_create(struct drm_device *dev,
1041                             struct drm_file *file_priv,
1042                             const struct drm_mode_fb_cmd2 *mode_cmd)
1043 {
1044         struct drm_gem_object *obj;
1045         struct qxl_framebuffer *qxl_fb;
1046         int ret;
1047
1048         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1049         if (!obj)
1050                 return NULL;
1051
1052         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1053         if (qxl_fb == NULL)
1054                 return NULL;
1055
1056         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1057         if (ret) {
1058                 kfree(qxl_fb);
1059                 drm_gem_object_unreference_unlocked(obj);
1060                 return NULL;
1061         }
1062
1063         return &qxl_fb->base;
1064 }
1065
1066 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1067         .fb_create = qxl_user_framebuffer_create,
1068 };
1069
1070 int qxl_create_monitors_object(struct qxl_device *qdev)
1071 {
1072         int ret;
1073         struct drm_gem_object *gobj;
1074         int max_allowed = qxl_num_crtc;
1075         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1076                 max_allowed * sizeof(struct qxl_head);
1077
1078         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1079                                     QXL_GEM_DOMAIN_VRAM,
1080                                     false, false, NULL, &gobj);
1081         if (ret) {
1082                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1083                 return -ENOMEM;
1084         }
1085         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1086
1087         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1088         if (ret)
1089                 return ret;
1090
1091         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1092         if (ret) {
1093                 qxl_bo_unreserve(qdev->monitors_config_bo);
1094                 return ret;
1095         }
1096
1097         qxl_bo_unreserve(qdev->monitors_config_bo);
1098
1099         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1100
1101         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1102         qdev->ram_header->monitors_config =
1103                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1104
1105         memset(qdev->monitors_config, 0, monitors_config_size);
1106         qdev->monitors_config->max_allowed = max_allowed;
1107         return 0;
1108 }
1109
1110 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1111 {
1112         int ret;
1113
1114         qdev->monitors_config = NULL;
1115         qdev->ram_header->monitors_config = 0;
1116
1117         qxl_bo_kunmap(qdev->monitors_config_bo);
1118         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1119         if (ret)
1120                 return ret;
1121
1122         qxl_bo_unpin(qdev->monitors_config_bo);
1123         qxl_bo_unreserve(qdev->monitors_config_bo);
1124
1125         qxl_bo_unref(&qdev->monitors_config_bo);
1126         return 0;
1127 }
1128
1129 int qxl_modeset_init(struct qxl_device *qdev)
1130 {
1131         int i;
1132         int ret;
1133
1134         drm_mode_config_init(qdev->ddev);
1135
1136         ret = qxl_create_monitors_object(qdev);
1137         if (ret)
1138                 return ret;
1139
1140         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1141
1142         /* modes will be validated against the framebuffer size */
1143         qdev->ddev->mode_config.min_width = 320;
1144         qdev->ddev->mode_config.min_height = 200;
1145         qdev->ddev->mode_config.max_width = 8192;
1146         qdev->ddev->mode_config.max_height = 8192;
1147
1148         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1149
1150         drm_mode_create_suggested_offset_properties(qdev->ddev);
1151         qxl_mode_create_hotplug_mode_update_property(qdev);
1152
1153         for (i = 0 ; i < qxl_num_crtc; ++i) {
1154                 qdev_crtc_init(qdev->ddev, i);
1155                 qdev_output_init(qdev->ddev, i);
1156         }
1157
1158         qdev->mode_info.mode_config_initialized = true;
1159
1160         /* primary surface must be created by this point, to allow
1161          * issuing command queue commands and having them read by
1162          * spice server. */
1163         qxl_fbdev_init(qdev);
1164         return 0;
1165 }
1166
1167 void qxl_modeset_fini(struct qxl_device *qdev)
1168 {
1169         qxl_fbdev_fini(qdev);
1170
1171         qxl_destroy_monitors_object(qdev);
1172         if (qdev->mode_info.mode_config_initialized) {
1173                 drm_mode_config_cleanup(qdev->ddev);
1174                 qdev->mode_info.mode_config_initialized = false;
1175         }
1176 }