kernel/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         qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
 379         qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
 380         qcrtc->hot_spot_x = hot_x;
 381         qcrtc->hot_spot_y = hot_y;
 382
 383         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 384         cmd->type = QXL_CURSOR_SET;
 385         cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 386         cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 387
 388         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 389
 390         cmd->u.set.visible = 1;
 391         qxl_release_unmap(qdev, release, &cmd->release_info);
 392
 393         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 394         qxl_release_fence_buffer_objects(release);
 395
 396         /* finish with the userspace bo */
 397         ret = qxl_bo_reserve(user_bo, false);
 398         if (!ret) {
 399                 qxl_bo_unpin(user_bo);
 400                 qxl_bo_unreserve(user_bo);
 401         }
 402         drm_gem_object_unreference_unlocked(obj);
 403
 404         qxl_bo_unref(&cursor_bo);
 405
 406         return ret;
 407
 408 out_backoff:
 409         qxl_release_backoff_reserve_list(release);
 410 out_free_bo:
 411         qxl_bo_unref(&cursor_bo);
 412 out_free_release:
 413         qxl_release_free(qdev, release);
 414 out_kunmap:
 415         qxl_bo_kunmap(user_bo);
 416 out_unpin:
 417         qxl_bo_unpin(user_bo);
 418 out_unref:
 419         drm_gem_object_unreference_unlocked(obj);
 420         return ret;
 421 }
 422
 423 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 424                                 int x, int y)
 425 {
 426         struct drm_device *dev = crtc->dev;
 427         struct qxl_device *qdev = dev->dev_private;
 428         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 429         struct qxl_release *release;
 430         struct qxl_cursor_cmd *cmd;
 431         int ret;
 432
 433         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 434                                    &release, NULL);
 435         if (ret)
 436                 return ret;
 437
 438         ret = qxl_release_reserve_list(release, true);
 439         if (ret) {
 440                 qxl_release_free(qdev, release);
 441                 return ret;
 442         }
 443
 444         qcrtc->cur_x = x;
 445         qcrtc->cur_y = y;
 446
 447         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 448         cmd->type = QXL_CURSOR_MOVE;
 449         cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
 450         cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
 451         qxl_release_unmap(qdev, release, &cmd->release_info);
 452
 453         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 454         qxl_release_fence_buffer_objects(release);
 455
 456         return 0;
 457 }
 458
 459
 460 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 461         .cursor_set2 = qxl_crtc_cursor_set2,
 462         .cursor_move = qxl_crtc_cursor_move,
 463         .set_config = drm_crtc_helper_set_config,
 464         .destroy = qxl_crtc_destroy,
 465         .page_flip = qxl_crtc_page_flip,
 466 };
 467
 468 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 469 {
 470         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 471
 472         if (qxl_fb->obj)
 473                 drm_gem_object_unreference_unlocked(qxl_fb->obj);
 474         drm_framebuffer_cleanup(fb);
 475         kfree(qxl_fb);
 476 }
 477
 478 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 479                                          struct drm_file *file_priv,
 480                                          unsigned flags, unsigned color,
 481                                          struct drm_clip_rect *clips,
 482                                          unsigned num_clips)
 483 {
 484         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 485         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 486         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 487         struct drm_clip_rect norect;
 488         struct qxl_bo *qobj;
 489         int inc = 1;
 490
 491         drm_modeset_lock_all(fb->dev);
 492
 493         qobj = gem_to_qxl_bo(qxl_fb->obj);
 494         /* if we aren't primary surface ignore this */
 495         if (!qobj->is_primary) {
 496                 drm_modeset_unlock_all(fb->dev);
 497                 return 0;
 498         }
 499
 500         if (!num_clips) {
 501                 num_clips = 1;
 502                 clips = &norect;
 503                 norect.x1 = norect.y1 = 0;
 504                 norect.x2 = fb->width;
 505                 norect.y2 = fb->height;
 506         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 507                 num_clips /= 2;
 508                 inc = 2; /* skip source rects */
 509         }
 510
 511         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 512                           clips, num_clips, inc);
 513
 514         drm_modeset_unlock_all(fb->dev);
 515
 516         return 0;
 517 }
 518
 519 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 520         .destroy = qxl_user_framebuffer_destroy,
 521         .dirty = qxl_framebuffer_surface_dirty,
 522 /*      TODO?
 523  *      .create_handle = qxl_user_framebuffer_create_handle, */
 524 };
 525
 526 int
 527 qxl_framebuffer_init(struct drm_device *dev,
 528                      struct qxl_framebuffer *qfb,
 529                      struct drm_mode_fb_cmd2 *mode_cmd,
 530                      struct drm_gem_object *obj)
 531 {
 532         int ret;
 533
 534         qfb->obj = obj;
 535         ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
 536         if (ret) {
 537                 qfb->obj = NULL;
 538                 return ret;
 539         }
 540         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 541         return 0;
 542 }
 543
 544 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 545 {
 546 }
 547
 548 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 549                                   const struct drm_display_mode *mode,
 550                                   struct drm_display_mode *adjusted_mode)
 551 {
 552         struct drm_device *dev = crtc->dev;
 553         struct qxl_device *qdev = dev->dev_private;
 554
 555         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 556                    __func__,
 557                    mode->hdisplay, mode->vdisplay,
 558                    adjusted_mode->hdisplay,
 559                    adjusted_mode->vdisplay);
 560         return true;
 561 }
 562
 563 void
 564 qxl_send_monitors_config(struct qxl_device *qdev)
 565 {
 566         int i;
 567
 568         BUG_ON(!qdev->ram_header->monitors_config);
 569
 570         if (qdev->monitors_config->count == 0) {
 571                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 572                 return;
 573         }
 574         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 575                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 576
 577                 if (head->y > 8192 || head->x > 8192 ||
 578                     head->width > 8192 || head->height > 8192) {
 579                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 580                                   i, head->width, head->height,
 581                                   head->x, head->y);
 582                         return;
 583                 }
 584         }
 585         qxl_io_monitors_config(qdev);
 586 }
 587
 588 static void qxl_monitors_config_set(struct qxl_device *qdev,
 589                                     int index,
 590                                     unsigned x, unsigned y,
 591                                     unsigned width, unsigned height,
 592                                     unsigned surf_id)
 593 {
 594         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 595         qdev->monitors_config->heads[index].x = x;
 596         qdev->monitors_config->heads[index].y = y;
 597         qdev->monitors_config->heads[index].width = width;
 598         qdev->monitors_config->heads[index].height = height;
 599         qdev->monitors_config->heads[index].surface_id = surf_id;
 600
 601 }
 602
 603 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 604                                struct drm_display_mode *mode,
 605                                struct drm_display_mode *adjusted_mode,
 606                                int x, int y,
 607                                struct drm_framebuffer *old_fb)
 608 {
 609         struct drm_device *dev = crtc->dev;
 610         struct qxl_device *qdev = dev->dev_private;
 611         struct qxl_framebuffer *qfb;
 612         struct qxl_bo *bo, *old_bo = NULL;
 613         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 614         bool recreate_primary = false;
 615         int ret;
 616         int surf_id;
 617         if (!crtc->primary->fb) {
 618                 DRM_DEBUG_KMS("No FB bound\n");
 619                 return 0;
 620         }
 621
 622         if (old_fb) {
 623                 qfb = to_qxl_framebuffer(old_fb);
 624                 old_bo = gem_to_qxl_bo(qfb->obj);
 625         }
 626         qfb = to_qxl_framebuffer(crtc->primary->fb);
 627         bo = gem_to_qxl_bo(qfb->obj);
 628         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 629                   x, y,
 630                   mode->hdisplay, mode->vdisplay,
 631                   adjusted_mode->hdisplay,
 632                   adjusted_mode->vdisplay);
 633
 634         if (bo->is_primary == false)
 635                 recreate_primary = true;
 636
 637         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 638                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 639                 return -EINVAL;
 640         }
 641
 642         ret = qxl_bo_reserve(bo, false);
 643         if (ret != 0)
 644                 return ret;
 645         ret = qxl_bo_pin(bo, bo->type, NULL);
 646         if (ret != 0) {
 647                 qxl_bo_unreserve(bo);
 648                 return -EINVAL;
 649         }
 650         qxl_bo_unreserve(bo);
 651         if (recreate_primary) {
 652                 qxl_io_destroy_primary(qdev);
 653                 qxl_io_log(qdev,
 654                            "recreate primary: %dx%d,%d,%d\n",
 655                            bo->surf.width, bo->surf.height,
 656                            bo->surf.stride, bo->surf.format);
 657                 qxl_io_create_primary(qdev, 0, bo);
 658                 bo->is_primary = true;
 659         }
 660
 661         if (bo->is_primary) {
 662                 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
 663                 surf_id = 0;
 664         } else {
 665                 surf_id = bo->surface_id;
 666         }
 667
 668         if (old_bo && old_bo != bo) {
 669                 old_bo->is_primary = false;
 670                 ret = qxl_bo_reserve(old_bo, false);
 671                 qxl_bo_unpin(old_bo);
 672                 qxl_bo_unreserve(old_bo);
 673         }
 674
 675         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 676                                 mode->hdisplay,
 677                                 mode->vdisplay, surf_id);
 678         return 0;
 679 }
 680
 681 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 682 {
 683         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 684                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 685                   crtc->x, crtc->y, crtc->enabled);
 686 }
 687
 688 static void qxl_crtc_commit(struct drm_crtc *crtc)
 689 {
 690         DRM_DEBUG("\n");
 691 }
 692
 693 static void qxl_crtc_disable(struct drm_crtc *crtc)
 694 {
 695         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 696         struct drm_device *dev = crtc->dev;
 697         struct qxl_device *qdev = dev->dev_private;
 698         if (crtc->primary->fb) {
 699                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 700                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 701                 int ret;
 702                 ret = qxl_bo_reserve(bo, false);
 703                 qxl_bo_unpin(bo);
 704                 qxl_bo_unreserve(bo);
 705                 crtc->primary->fb = NULL;
 706         }
 707
 708         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 709
 710         qxl_send_monitors_config(qdev);
 711 }
 712
 713 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 714         .dpms = qxl_crtc_dpms,
 715         .disable = qxl_crtc_disable,
 716         .mode_fixup = qxl_crtc_mode_fixup,
 717         .mode_set = qxl_crtc_mode_set,
 718         .prepare = qxl_crtc_prepare,
 719         .commit = qxl_crtc_commit,
 720 };
 721
 722 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 723 {
 724         struct qxl_crtc *qxl_crtc;
 725
 726         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 727         if (!qxl_crtc)
 728                 return -ENOMEM;
 729
 730         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 731         qxl_crtc->index = crtc_id;
 732         drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
 733         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 734         return 0;
 735 }
 736
 737 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 738 {
 739         DRM_DEBUG("\n");
 740 }
 741
 742 static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
 743                                const struct drm_display_mode *mode,
 744                                struct drm_display_mode *adjusted_mode)
 745 {
 746         DRM_DEBUG("\n");
 747         return true;
 748 }
 749
 750 static void qxl_enc_prepare(struct drm_encoder *encoder)
 751 {
 752         DRM_DEBUG("\n");
 753 }
 754
 755 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 756                 struct drm_encoder *encoder)
 757 {
 758         int i;
 759         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 760         struct qxl_head *head;
 761         struct drm_display_mode *mode;
 762
 763         BUG_ON(!encoder);
 764         /* TODO: ugly, do better */
 765         i = output->index;
 766         if (!qdev->monitors_config ||
 767             qdev->monitors_config->max_allowed <= i) {
 768                 DRM_ERROR(
 769                 "head number too large or missing monitors config: %p, %d",
 770                 qdev->monitors_config,
 771                 qdev->monitors_config ?
 772                         qdev->monitors_config->max_allowed : -1);
 773                 return;
 774         }
 775         if (!encoder->crtc) {
 776                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 777                 return;
 778         }
 779         if (i != 0)
 780                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 781         head = &qdev->monitors_config->heads[i];
 782         head->id = i;
 783         if (encoder->crtc->enabled) {
 784                 mode = &encoder->crtc->mode;
 785                 head->width = mode->hdisplay;
 786                 head->height = mode->vdisplay;
 787                 head->x = encoder->crtc->x;
 788                 head->y = encoder->crtc->y;
 789                 if (qdev->monitors_config->count < i + 1)
 790                         qdev->monitors_config->count = i + 1;
 791         } else {
 792                 head->width = 0;
 793                 head->height = 0;
 794                 head->x = 0;
 795                 head->y = 0;
 796         }
 797         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 798                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 799         head->flags = 0;
 800         /* TODO - somewhere else to call this for multiple monitors
 801          * (config_commit?) */
 802         qxl_send_monitors_config(qdev);
 803 }
 804
 805 static void qxl_enc_commit(struct drm_encoder *encoder)
 806 {
 807         struct qxl_device *qdev = encoder->dev->dev_private;
 808
 809         qxl_write_monitors_config_for_encoder(qdev, encoder);
 810         DRM_DEBUG("\n");
 811 }
 812
 813 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 814                                 struct drm_display_mode *mode,
 815                                 struct drm_display_mode *adjusted_mode)
 816 {
 817         DRM_DEBUG("\n");
 818 }
 819
 820 static int qxl_conn_get_modes(struct drm_connector *connector)
 821 {
 822         int ret = 0;
 823         struct qxl_device *qdev = connector->dev->dev_private;
 824         unsigned pwidth = 1024;
 825         unsigned pheight = 768;
 826
 827         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 828         /* TODO: what should we do here? only show the configured modes for the
 829          * device, or allow the full list, or both? */
 830         if (qdev->monitors_config && qdev->monitors_config->count) {
 831                 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 832                 if (ret < 0)
 833                         return ret;
 834         }
 835         ret += qxl_add_common_modes(connector, pwidth, pheight);
 836         return ret;
 837 }
 838
 839 static int qxl_conn_mode_valid(struct drm_connector *connector,
 840                                struct drm_display_mode *mode)
 841 {
 842         struct drm_device *ddev = connector->dev;
 843         struct qxl_device *qdev = ddev->dev_private;
 844         int i;
 845
 846         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 847          * TODO: check that the mode fits in the framebuffer */
 848
 849         if(qdev->monitors_config_width == mode->hdisplay &&
 850            qdev->monitors_config_height == mode->vdisplay)
 851                 return MODE_OK;
 852
 853         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 854                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 855                         return MODE_OK;
 856         }
 857         return MODE_BAD;
 858 }
 859
 860 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 861 {
 862         struct qxl_output *qxl_output =
 863                 drm_connector_to_qxl_output(connector);
 864
 865         DRM_DEBUG("\n");
 866         return &qxl_output->enc;
 867 }
 868
 869
 870 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 871         .dpms = qxl_enc_dpms,
 872         .mode_fixup = qxl_enc_mode_fixup,
 873         .prepare = qxl_enc_prepare,
 874         .mode_set = qxl_enc_mode_set,
 875         .commit = qxl_enc_commit,
 876 };
 877
 878 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 879         .get_modes = qxl_conn_get_modes,
 880         .mode_valid = qxl_conn_mode_valid,
 881         .best_encoder = qxl_best_encoder,
 882 };
 883
 884 static void qxl_conn_save(struct drm_connector *connector)
 885 {
 886         DRM_DEBUG("\n");
 887 }
 888
 889 static void qxl_conn_restore(struct drm_connector *connector)
 890 {
 891         DRM_DEBUG("\n");
 892 }
 893
 894 static enum drm_connector_status qxl_conn_detect(
 895                         struct drm_connector *connector,
 896                         bool force)
 897 {
 898         struct qxl_output *output =
 899                 drm_connector_to_qxl_output(connector);
 900         struct drm_device *ddev = connector->dev;
 901         struct qxl_device *qdev = ddev->dev_private;
 902         bool connected = false;
 903
 904         /* The first monitor is always connected */
 905         if (!qdev->client_monitors_config) {
 906                 if (output->index == 0)
 907                         connected = true;
 908         } else
 909                 connected = qdev->client_monitors_config->count > output->index &&
 910                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 911
 912         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 913         if (!connected)
 914                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 915
 916         return connected ? connector_status_connected
 917                          : connector_status_disconnected;
 918 }
 919
 920 static int qxl_conn_set_property(struct drm_connector *connector,
 921                                    struct drm_property *property,
 922                                    uint64_t value)
 923 {
 924         DRM_DEBUG("\n");
 925         return 0;
 926 }
 927
 928 static void qxl_conn_destroy(struct drm_connector *connector)
 929 {
 930         struct qxl_output *qxl_output =
 931                 drm_connector_to_qxl_output(connector);
 932
 933         drm_connector_unregister(connector);
 934         drm_connector_cleanup(connector);
 935         kfree(qxl_output);
 936 }
 937
 938 static const struct drm_connector_funcs qxl_connector_funcs = {
 939         .dpms = drm_helper_connector_dpms,
 940         .save = qxl_conn_save,
 941         .restore = qxl_conn_restore,
 942         .detect = qxl_conn_detect,
 943         .fill_modes = drm_helper_probe_single_connector_modes_nomerge,
 944         .set_property = qxl_conn_set_property,
 945         .destroy = qxl_conn_destroy,
 946 };
 947
 948 static void qxl_enc_destroy(struct drm_encoder *encoder)
 949 {
 950         drm_encoder_cleanup(encoder);
 951 }
 952
 953 static const struct drm_encoder_funcs qxl_enc_funcs = {
 954         .destroy = qxl_enc_destroy,
 955 };
 956
 957 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 958 {
 959         if (qdev->hotplug_mode_update_property)
 960                 return 0;
 961
 962         qdev->hotplug_mode_update_property =
 963                 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 964                                           "hotplug_mode_update", 0, 1);
 965
 966         return 0;
 967 }
 968
 969 static int qdev_output_init(struct drm_device *dev, int num_output)
 970 {
 971         struct qxl_device *qdev = dev->dev_private;
 972         struct qxl_output *qxl_output;
 973         struct drm_connector *connector;
 974         struct drm_encoder *encoder;
 975
 976         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 977         if (!qxl_output)
 978                 return -ENOMEM;
 979
 980         qxl_output->index = num_output;
 981
 982         connector = &qxl_output->base;
 983         encoder = &qxl_output->enc;
 984         drm_connector_init(dev, &qxl_output->base,
 985                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 986
 987         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 988                          DRM_MODE_ENCODER_VIRTUAL);
 989
 990         /* we get HPD via client monitors config */
 991         connector->polled = DRM_CONNECTOR_POLL_HPD;
 992         encoder->possible_crtcs = 1 << num_output;
 993         drm_mode_connector_attach_encoder(&qxl_output->base,
 994                                           &qxl_output->enc);
 995         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 996         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 997
 998         drm_object_attach_property(&connector->base,
 999                                    qdev->hotplug_mode_update_property, 0);
1000         drm_object_attach_property(&connector->base,
1001                                    dev->mode_config.suggested_x_property, 0);
1002         drm_object_attach_property(&connector->base,
1003                                    dev->mode_config.suggested_y_property, 0);
1004         drm_connector_register(connector);
1005         return 0;
1006 }
1007
1008 static struct drm_framebuffer *
1009 qxl_user_framebuffer_create(struct drm_device *dev,
1010                             struct drm_file *file_priv,
1011                             struct drm_mode_fb_cmd2 *mode_cmd)
1012 {
1013         struct drm_gem_object *obj;
1014         struct qxl_framebuffer *qxl_fb;
1015         int ret;
1016
1017         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
1018
1019         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1020         if (qxl_fb == NULL)
1021                 return NULL;
1022
1023         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
1024         if (ret) {
1025                 kfree(qxl_fb);
1026                 drm_gem_object_unreference_unlocked(obj);
1027                 return NULL;
1028         }
1029
1030         return &qxl_fb->base;
1031 }
1032
1033 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1034         .fb_create = qxl_user_framebuffer_create,
1035 };
1036
1037 int qxl_create_monitors_object(struct qxl_device *qdev)
1038 {
1039         int ret;
1040         struct drm_gem_object *gobj;
1041         int max_allowed = qxl_num_crtc;
1042         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1043                 max_allowed * sizeof(struct qxl_head);
1044
1045         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1046                                     QXL_GEM_DOMAIN_VRAM,
1047                                     false, false, NULL, &gobj);
1048         if (ret) {
1049                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1050                 return -ENOMEM;
1051         }
1052         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1053
1054         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1055         if (ret)
1056                 return ret;
1057
1058         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1059         if (ret) {
1060                 qxl_bo_unreserve(qdev->monitors_config_bo);
1061                 return ret;
1062         }
1063
1064         qxl_bo_unreserve(qdev->monitors_config_bo);
1065
1066         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1067
1068         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1069         qdev->ram_header->monitors_config =
1070                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1071
1072         memset(qdev->monitors_config, 0, monitors_config_size);
1073         qdev->monitors_config->max_allowed = max_allowed;
1074         return 0;
1075 }
1076
1077 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1078 {
1079         int ret;
1080
1081         qdev->monitors_config = NULL;
1082         qdev->ram_header->monitors_config = 0;
1083
1084         qxl_bo_kunmap(qdev->monitors_config_bo);
1085         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1086         if (ret)
1087                 return ret;
1088
1089         qxl_bo_unpin(qdev->monitors_config_bo);
1090         qxl_bo_unreserve(qdev->monitors_config_bo);
1091
1092         qxl_bo_unref(&qdev->monitors_config_bo);
1093         return 0;
1094 }
1095
1096 int qxl_modeset_init(struct qxl_device *qdev)
1097 {
1098         int i;
1099         int ret;
1100
1101         drm_mode_config_init(qdev->ddev);
1102
1103         ret = qxl_create_monitors_object(qdev);
1104         if (ret)
1105                 return ret;
1106
1107         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1108
1109         /* modes will be validated against the framebuffer size */
1110         qdev->ddev->mode_config.min_width = 320;
1111         qdev->ddev->mode_config.min_height = 200;
1112         qdev->ddev->mode_config.max_width = 8192;
1113         qdev->ddev->mode_config.max_height = 8192;
1114
1115         qdev->ddev->mode_config.fb_base = qdev->vram_base;
1116
1117         drm_mode_create_suggested_offset_properties(qdev->ddev);
1118         qxl_mode_create_hotplug_mode_update_property(qdev);
1119
1120         for (i = 0 ; i < qxl_num_crtc; ++i) {
1121                 qdev_crtc_init(qdev->ddev, i);
1122                 qdev_output_init(qdev->ddev, i);
1123         }
1124
1125         qdev->mode_info.mode_config_initialized = true;
1126
1127         /* primary surface must be created by this point, to allow
1128          * issuing command queue commands and having them read by
1129          * spice server. */
1130         qxl_fbdev_init(qdev);
1131         return 0;
1132 }
1133
1134 void qxl_modeset_fini(struct qxl_device *qdev)
1135 {
1136         qxl_fbdev_fini(qdev);
1137
1138         qxl_destroy_monitors_object(qdev);
1139         if (qdev->mode_info.mode_config_initialized) {
1140                 drm_mode_config_cleanup(qdev->ddev);
1141                 qdev->mode_info.mode_config_initialized = false;
1142         }
1143 }