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