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