drivers/gpu/drm/qxl/qxl_display.c

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