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