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 #include <linux/crc32.h>
  27 #include <drm/drm_crtc_helper.h>
  28 #include <drm/drm_plane_helper.h>
  29 #include <drm/drm_atomic_helper.h>
  30 #include <drm/drm_atomic.h>
  31 #include <drm/drm_gem_framebuffer_helper.h>
  32
  33 #include "qxl_drv.h"
  34 #include "qxl_object.h"
  35
  36 static bool qxl_head_enabled(struct qxl_head *head)
  37 {
  38         return head->width && head->height;
  39 }
  40
  41 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
  42                 unsigned int count)
  43 {
  44         if (qdev->client_monitors_config &&
  45             count > qdev->client_monitors_config->count) {
  46                 kfree(qdev->client_monitors_config);
  47                 qdev->client_monitors_config = NULL;
  48         }
  49         if (!qdev->client_monitors_config) {
  50                 qdev->client_monitors_config = kzalloc(
  51                                 sizeof(struct qxl_monitors_config) +
  52                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  53                 if (!qdev->client_monitors_config)
  54                         return -ENOMEM;
  55         }
  56         qdev->client_monitors_config->count = count;
  57         return 0;
  58 }
  59
  60 enum {
  61         MONITORS_CONFIG_MODIFIED,
  62         MONITORS_CONFIG_UNCHANGED,
  63         MONITORS_CONFIG_BAD_CRC,
  64         MONITORS_CONFIG_ERROR,
  65 };
  66
  67 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  68 {
  69         int i;
  70         int num_monitors;
  71         uint32_t crc;
  72         int status = MONITORS_CONFIG_UNCHANGED;
  73
  74         num_monitors = qdev->rom->client_monitors_config.count;
  75         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  76                   sizeof(qdev->rom->client_monitors_config));
  77         if (crc != qdev->rom->client_monitors_config_crc)
  78                 return MONITORS_CONFIG_BAD_CRC;
  79         if (!num_monitors) {
  80                 DRM_DEBUG_KMS("no client monitors configured\n");
  81                 return status;
  82         }
  83         if (num_monitors > qdev->monitors_config->max_allowed) {
  84                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  85                               qdev->monitors_config->max_allowed, num_monitors);
  86                 num_monitors = qdev->monitors_config->max_allowed;
  87         } else {
  88                 num_monitors = qdev->rom->client_monitors_config.count;
  89         }
  90         if (qdev->client_monitors_config
  91               && (num_monitors != qdev->client_monitors_config->count)) {
  92                 status = MONITORS_CONFIG_MODIFIED;
  93         }
  94         if (qxl_alloc_client_monitors_config(qdev, num_monitors)) {
  95                 status = MONITORS_CONFIG_ERROR;
  96                 return status;
  97         }
  98         /* we copy max from the client but it isn't used */
  99         qdev->client_monitors_config->max_allowed =
 100                                 qdev->monitors_config->max_allowed;
 101         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
 102                 struct qxl_urect *c_rect =
 103                         &qdev->rom->client_monitors_config.heads[i];
 104                 struct qxl_head *client_head =
 105                         &qdev->client_monitors_config->heads[i];
 106                 if (client_head->x != c_rect->left) {
 107                         client_head->x = c_rect->left;
 108                         status = MONITORS_CONFIG_MODIFIED;
 109                 }
 110                 if (client_head->y != c_rect->top) {
 111                         client_head->y = c_rect->top;
 112                         status = MONITORS_CONFIG_MODIFIED;
 113                 }
 114                 if (client_head->width != c_rect->right - c_rect->left) {
 115                         client_head->width = c_rect->right - c_rect->left;
 116                         status = MONITORS_CONFIG_MODIFIED;
 117                 }
 118                 if (client_head->height != c_rect->bottom - c_rect->top) {
 119                         client_head->height = c_rect->bottom - c_rect->top;
 120                         status = MONITORS_CONFIG_MODIFIED;
 121                 }
 122                 if (client_head->surface_id != 0) {
 123                         client_head->surface_id = 0;
 124                         status = MONITORS_CONFIG_MODIFIED;
 125                 }
 126                 if (client_head->id != i) {
 127                         client_head->id = i;
 128                         status = MONITORS_CONFIG_MODIFIED;
 129                 }
 130                 if (client_head->flags != 0) {
 131                         client_head->flags = 0;
 132                         status = MONITORS_CONFIG_MODIFIED;
 133                 }
 134                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 135                           client_head->x, client_head->y);
 136         }
 137
 138         return status;
 139 }
 140
 141 static void qxl_update_offset_props(struct qxl_device *qdev)
 142 {
 143         struct drm_device *dev = &qdev->ddev;
 144         struct drm_connector *connector;
 145         struct qxl_output *output;
 146         struct qxl_head *head;
 147
 148         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 149                 output = drm_connector_to_qxl_output(connector);
 150
 151                 head = &qdev->client_monitors_config->heads[output->index];
 152
 153                 drm_object_property_set_value(&connector->base,
 154                         dev->mode_config.suggested_x_property, head->x);
 155                 drm_object_property_set_value(&connector->base,
 156                         dev->mode_config.suggested_y_property, head->y);
 157         }
 158 }
 159
 160 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 161 {
 162         struct drm_device *dev = &qdev->ddev;
 163         int status, retries;
 164
 165         for (retries = 0; retries < 10; retries++) {
 166                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 167                 if (status != MONITORS_CONFIG_BAD_CRC)
 168                         break;
 169                 udelay(5);
 170         }
 171         if (status == MONITORS_CONFIG_ERROR) {
 172                 DRM_DEBUG_KMS("ignoring client monitors config: error");
 173                 return;
 174         }
 175         if (status == MONITORS_CONFIG_BAD_CRC) {
 176                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 177                 return;
 178         }
 179         if (status == MONITORS_CONFIG_UNCHANGED) {
 180                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
 181                 return;
 182         }
 183
 184         drm_modeset_lock_all(dev);
 185         qxl_update_offset_props(qdev);
 186         drm_modeset_unlock_all(dev);
 187         if (!drm_helper_hpd_irq_event(dev)) {
 188                 /* notify that the monitor configuration changed, to
 189                    adjust at the arbitrary resolution */
 190                 drm_kms_helper_hotplug_event(dev);
 191         }
 192 }
 193
 194 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 195                                          unsigned *pwidth,
 196                                          unsigned *pheight)
 197 {
 198         struct drm_device *dev = connector->dev;
 199         struct qxl_device *qdev = dev->dev_private;
 200         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 201         int h = output->index;
 202         struct drm_display_mode *mode = NULL;
 203         struct qxl_head *head;
 204
 205         if (!qdev->monitors_config)
 206                 return 0;
 207         if (h >= qdev->monitors_config->max_allowed)
 208                 return 0;
 209         if (!qdev->client_monitors_config)
 210                 return 0;
 211         if (h >= qdev->client_monitors_config->count)
 212                 return 0;
 213
 214         head = &qdev->client_monitors_config->heads[h];
 215         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
 216
 217         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 218                             false);
 219         mode->type |= DRM_MODE_TYPE_PREFERRED;
 220         mode->hdisplay = head->width;
 221         mode->vdisplay = head->height;
 222         drm_mode_set_name(mode);
 223         *pwidth = head->width;
 224         *pheight = head->height;
 225         drm_mode_probed_add(connector, mode);
 226         /* remember the last custom size for mode validation */
 227         qdev->monitors_config_width = mode->hdisplay;
 228         qdev->monitors_config_height = mode->vdisplay;
 229         return 1;
 230 }
 231
 232 static struct mode_size {
 233         int w;
 234         int h;
 235 } common_modes[] = {
 236         { 640,  480},
 237         { 720,  480},
 238         { 800,  600},
 239         { 848,  480},
 240         {1024,  768},
 241         {1152,  768},
 242         {1280,  720},
 243         {1280,  800},
 244         {1280,  854},
 245         {1280,  960},
 246         {1280, 1024},
 247         {1440,  900},
 248         {1400, 1050},
 249         {1680, 1050},
 250         {1600, 1200},
 251         {1920, 1080},
 252         {1920, 1200}
 253 };
 254
 255 static int qxl_add_common_modes(struct drm_connector *connector,
 256                                 unsigned int pwidth,
 257                                 unsigned int pheight)
 258 {
 259         struct drm_device *dev = connector->dev;
 260         struct drm_display_mode *mode = NULL;
 261         int i;
 262
 263         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 264                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 265                                     60, false, false, false);
 266                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 267                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 268                 drm_mode_probed_add(connector, mode);
 269         }
 270         return i - 1;
 271 }
 272
 273 static void qxl_send_monitors_config(struct qxl_device *qdev)
 274 {
 275         int i;
 276
 277         BUG_ON(!qdev->ram_header->monitors_config);
 278
 279         if (qdev->monitors_config->count == 0)
 280                 return;
 281
 282         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 283                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 284
 285                 if (head->y > 8192 || head->x > 8192 ||
 286                     head->width > 8192 || head->height > 8192) {
 287                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 288                                   i, head->width, head->height,
 289                                   head->x, head->y);
 290                         return;
 291                 }
 292         }
 293         qxl_io_monitors_config(qdev);
 294 }
 295
 296 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
 297                                             const char *reason)
 298 {
 299         struct drm_device *dev = crtc->dev;
 300         struct qxl_device *qdev = dev->dev_private;
 301         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 302         struct qxl_head head;
 303         int oldcount, i = qcrtc->index;
 304
 305         if (!qdev->primary_created) {
 306                 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
 307                 return;
 308         }
 309
 310         if (!qdev->monitors_config ||
 311             qdev->monitors_config->max_allowed <= i)
 312                 return;
 313
 314         head.id = i;
 315         head.flags = 0;
 316         oldcount = qdev->monitors_config->count;
 317         if (crtc->state->active) {
 318                 struct drm_display_mode *mode = &crtc->mode;
 319
 320                 head.width = mode->hdisplay;
 321                 head.height = mode->vdisplay;
 322                 head.x = crtc->x;
 323                 head.y = crtc->y;
 324                 if (qdev->monitors_config->count < i + 1)
 325                         qdev->monitors_config->count = i + 1;
 326         } else if (i > 0) {
 327                 head.width = 0;
 328                 head.height = 0;
 329                 head.x = 0;
 330                 head.y = 0;
 331                 if (qdev->monitors_config->count == i + 1)
 332                         qdev->monitors_config->count = i;
 333         } else {
 334                 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
 335                 return;
 336         }
 337
 338         if (head.width  == qdev->monitors_config->heads[i].width  &&
 339             head.height == qdev->monitors_config->heads[i].height &&
 340             head.x      == qdev->monitors_config->heads[i].x      &&
 341             head.y      == qdev->monitors_config->heads[i].y      &&
 342             oldcount    == qdev->monitors_config->count)
 343                 return;
 344
 345         DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
 346                       i, head.width, head.height, head.x, head.y,
 347                       crtc->state->active ? "on" : "off", reason);
 348         if (oldcount != qdev->monitors_config->count)
 349                 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
 350                               oldcount, qdev->monitors_config->count,
 351                               qdev->monitors_config->max_allowed);
 352
 353         qdev->monitors_config->heads[i] = head;
 354         qxl_send_monitors_config(qdev);
 355 }
 356
 357 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 358                                   struct drm_crtc_state *old_crtc_state)
 359 {
 360         struct drm_device *dev = crtc->dev;
 361         struct drm_pending_vblank_event *event;
 362         unsigned long flags;
 363
 364         if (crtc->state && crtc->state->event) {
 365                 event = crtc->state->event;
 366                 crtc->state->event = NULL;
 367
 368                 spin_lock_irqsave(&dev->event_lock, flags);
 369                 drm_crtc_send_vblank_event(crtc, event);
 370                 spin_unlock_irqrestore(&dev->event_lock, flags);
 371         }
 372
 373         qxl_crtc_update_monitors_config(crtc, "flush");
 374 }
 375
 376 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 377 {
 378         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 379
 380         qxl_bo_unref(&qxl_crtc->cursor_bo);
 381         drm_crtc_cleanup(crtc);
 382         kfree(qxl_crtc);
 383 }
 384
 385 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 386         .set_config = drm_atomic_helper_set_config,
 387         .destroy = qxl_crtc_destroy,
 388         .page_flip = drm_atomic_helper_page_flip,
 389         .reset = drm_atomic_helper_crtc_reset,
 390         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 391         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 392 };
 393
 394 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 395                                          struct drm_file *file_priv,
 396                                          unsigned int flags, unsigned int color,
 397                                          struct drm_clip_rect *clips,
 398                                          unsigned int num_clips)
 399 {
 400         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 401         struct qxl_device *qdev = fb->dev->dev_private;
 402         struct drm_clip_rect norect;
 403         struct qxl_bo *qobj;
 404         int inc = 1;
 405
 406         drm_modeset_lock_all(fb->dev);
 407
 408         qobj = gem_to_qxl_bo(fb->obj[0]);
 409         /* if we aren't primary surface ignore this */
 410         if (!qobj->is_primary) {
 411                 drm_modeset_unlock_all(fb->dev);
 412                 return 0;
 413         }
 414
 415         if (!num_clips) {
 416                 num_clips = 1;
 417                 clips = &norect;
 418                 norect.x1 = norect.y1 = 0;
 419                 norect.x2 = fb->width;
 420                 norect.y2 = fb->height;
 421         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 422                 num_clips /= 2;
 423                 inc = 2; /* skip source rects */
 424         }
 425
 426         qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
 427                           clips, num_clips, inc);
 428
 429         drm_modeset_unlock_all(fb->dev);
 430
 431         return 0;
 432 }
 433
 434 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 435         .destroy = drm_gem_fb_destroy,
 436         .dirty = qxl_framebuffer_surface_dirty,
 437         .create_handle = drm_gem_fb_create_handle,
 438 };
 439
 440 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
 441                                    struct drm_crtc_state *old_state)
 442 {
 443         qxl_crtc_update_monitors_config(crtc, "enable");
 444 }
 445
 446 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
 447                                     struct drm_crtc_state *old_state)
 448 {
 449         qxl_crtc_update_monitors_config(crtc, "disable");
 450 }
 451
 452 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 453         .atomic_flush = qxl_crtc_atomic_flush,
 454         .atomic_enable = qxl_crtc_atomic_enable,
 455         .atomic_disable = qxl_crtc_atomic_disable,
 456 };
 457
 458 static int qxl_primary_atomic_check(struct drm_plane *plane,
 459                                     struct drm_plane_state *state)
 460 {
 461         struct qxl_device *qdev = plane->dev->dev_private;
 462         struct qxl_bo *bo;
 463
 464         if (!state->crtc || !state->fb)
 465                 return 0;
 466
 467         bo = gem_to_qxl_bo(state->fb->obj[0]);
 468
 469         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 470                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 471                 return -EINVAL;
 472         }
 473
 474         return 0;
 475 }
 476
 477 static int qxl_primary_apply_cursor(struct drm_plane *plane)
 478 {
 479         struct drm_device *dev = plane->dev;
 480         struct qxl_device *qdev = dev->dev_private;
 481         struct drm_framebuffer *fb = plane->state->fb;
 482         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 483         struct qxl_cursor_cmd *cmd;
 484         struct qxl_release *release;
 485         int ret = 0;
 486
 487         if (!qcrtc->cursor_bo)
 488                 return 0;
 489
 490         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 491                                          QXL_RELEASE_CURSOR_CMD,
 492                                          &release, NULL);
 493         if (ret)
 494                 return ret;
 495
 496         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 497         if (ret)
 498                 goto out_free_release;
 499
 500         ret = qxl_release_reserve_list(release, false);
 501         if (ret)
 502                 goto out_free_release;
 503
 504         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 505         cmd->type = QXL_CURSOR_SET;
 506         cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
 507         cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
 508
 509         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 510
 511         cmd->u.set.visible = 1;
 512         qxl_release_unmap(qdev, release, &cmd->release_info);
 513
 514         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 515         qxl_release_fence_buffer_objects(release);
 516
 517         return ret;
 518
 519 out_free_release:
 520         qxl_release_free(qdev, release);
 521         return ret;
 522 }
 523
 524 static void qxl_primary_atomic_update(struct drm_plane *plane,
 525                                       struct drm_plane_state *old_state)
 526 {
 527         struct qxl_device *qdev = plane->dev->dev_private;
 528         struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
 529         struct qxl_bo *bo_old;
 530         struct drm_clip_rect norect = {
 531             .x1 = 0,
 532             .y1 = 0,
 533             .x2 = plane->state->fb->width,
 534             .y2 = plane->state->fb->height
 535         };
 536         int ret;
 537         bool same_shadow = false;
 538
 539         if (old_state->fb) {
 540                 bo_old = gem_to_qxl_bo(old_state->fb->obj[0]);
 541         } else {
 542                 bo_old = NULL;
 543         }
 544
 545         if (bo == bo_old)
 546                 return;
 547
 548         if (bo_old && bo_old->shadow && bo->shadow &&
 549             bo_old->shadow == bo->shadow) {
 550                 same_shadow = true;
 551         }
 552
 553         if (bo_old && bo_old->is_primary) {
 554                 if (!same_shadow)
 555                         qxl_io_destroy_primary(qdev);
 556                 bo_old->is_primary = false;
 557
 558                 ret = qxl_primary_apply_cursor(plane);
 559                 if (ret)
 560                         DRM_ERROR(
 561                         "could not set cursor after creating primary");
 562         }
 563
 564         if (!bo->is_primary) {
 565                 if (!same_shadow)
 566                         qxl_io_create_primary(qdev, 0, bo);
 567                 bo->is_primary = true;
 568         }
 569
 570         qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1);
 571 }
 572
 573 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 574                                        struct drm_plane_state *old_state)
 575 {
 576         struct qxl_device *qdev = plane->dev->dev_private;
 577
 578         if (old_state->fb) {
 579                 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
 580
 581                 if (bo->is_primary) {
 582                         qxl_io_destroy_primary(qdev);
 583                         bo->is_primary = false;
 584                 }
 585         }
 586 }
 587
 588 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 589                                      struct drm_plane_state *old_state)
 590 {
 591         struct drm_device *dev = plane->dev;
 592         struct qxl_device *qdev = dev->dev_private;
 593         struct drm_framebuffer *fb = plane->state->fb;
 594         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 595         struct qxl_release *release;
 596         struct qxl_cursor_cmd *cmd;
 597         struct qxl_cursor *cursor;
 598         struct drm_gem_object *obj;
 599         struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
 600         int ret;
 601         void *user_ptr;
 602         int size = 64*64*4;
 603
 604         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 605                                          QXL_RELEASE_CURSOR_CMD,
 606                                          &release, NULL);
 607         if (ret)
 608                 return;
 609
 610         if (fb != old_state->fb) {
 611                 obj = fb->obj[0];
 612                 user_bo = gem_to_qxl_bo(obj);
 613
 614                 /* pinning is done in the prepare/cleanup framevbuffer */
 615                 ret = qxl_bo_kmap(user_bo, &user_ptr);
 616                 if (ret)
 617                         goto out_free_release;
 618
 619                 ret = qxl_alloc_bo_reserved(qdev, release,
 620                                             sizeof(struct qxl_cursor) + size,
 621                                             &cursor_bo);
 622                 if (ret)
 623                         goto out_kunmap;
 624
 625                 ret = qxl_bo_pin(cursor_bo);
 626                 if (ret)
 627                         goto out_free_bo;
 628
 629                 ret = qxl_release_reserve_list(release, true);
 630                 if (ret)
 631                         goto out_unpin;
 632
 633                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 634                 if (ret)
 635                         goto out_backoff;
 636
 637                 cursor->header.unique = 0;
 638                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 639                 cursor->header.width = 64;
 640                 cursor->header.height = 64;
 641                 cursor->header.hot_spot_x = fb->hot_x;
 642                 cursor->header.hot_spot_y = fb->hot_y;
 643                 cursor->data_size = size;
 644                 cursor->chunk.next_chunk = 0;
 645                 cursor->chunk.prev_chunk = 0;
 646                 cursor->chunk.data_size = size;
 647                 memcpy(cursor->chunk.data, user_ptr, size);
 648                 qxl_bo_kunmap(cursor_bo);
 649                 qxl_bo_kunmap(user_bo);
 650
 651                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 652                 cmd->u.set.visible = 1;
 653                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
 654                                                            cursor_bo, 0);
 655                 cmd->type = QXL_CURSOR_SET;
 656
 657                 old_cursor_bo = qcrtc->cursor_bo;
 658                 qcrtc->cursor_bo = cursor_bo;
 659                 cursor_bo = NULL;
 660         } else {
 661
 662                 ret = qxl_release_reserve_list(release, true);
 663                 if (ret)
 664                         goto out_free_release;
 665
 666                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 667                 cmd->type = QXL_CURSOR_MOVE;
 668         }
 669
 670         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
 671         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
 672
 673         qxl_release_unmap(qdev, release, &cmd->release_info);
 674         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 675         qxl_release_fence_buffer_objects(release);
 676
 677         if (old_cursor_bo != NULL)
 678                 qxl_bo_unpin(old_cursor_bo);
 679         qxl_bo_unref(&old_cursor_bo);
 680         qxl_bo_unref(&cursor_bo);
 681
 682         return;
 683
 684 out_backoff:
 685         qxl_release_backoff_reserve_list(release);
 686 out_unpin:
 687         qxl_bo_unpin(cursor_bo);
 688 out_free_bo:
 689         qxl_bo_unref(&cursor_bo);
 690 out_kunmap:
 691         qxl_bo_kunmap(user_bo);
 692 out_free_release:
 693         qxl_release_free(qdev, release);
 694         return;
 695
 696 }
 697
 698 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
 699                                       struct drm_plane_state *old_state)
 700 {
 701         struct qxl_device *qdev = plane->dev->dev_private;
 702         struct qxl_release *release;
 703         struct qxl_cursor_cmd *cmd;
 704         int ret;
 705
 706         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 707                                          QXL_RELEASE_CURSOR_CMD,
 708                                          &release, NULL);
 709         if (ret)
 710                 return;
 711
 712         ret = qxl_release_reserve_list(release, true);
 713         if (ret) {
 714                 qxl_release_free(qdev, release);
 715                 return;
 716         }
 717
 718         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 719         cmd->type = QXL_CURSOR_HIDE;
 720         qxl_release_unmap(qdev, release, &cmd->release_info);
 721
 722         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 723         qxl_release_fence_buffer_objects(release);
 724 }
 725
 726 static int qxl_plane_prepare_fb(struct drm_plane *plane,
 727                                 struct drm_plane_state *new_state)
 728 {
 729         struct qxl_device *qdev = plane->dev->dev_private;
 730         struct drm_gem_object *obj;
 731         struct qxl_bo *user_bo, *old_bo = NULL;
 732         int ret;
 733
 734         if (!new_state->fb)
 735                 return 0;
 736
 737         obj = new_state->fb->obj[0];
 738         user_bo = gem_to_qxl_bo(obj);
 739
 740         if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
 741             user_bo->is_dumb && !user_bo->shadow) {
 742                 if (plane->state->fb) {
 743                         obj = plane->state->fb->obj[0];
 744                         old_bo = gem_to_qxl_bo(obj);
 745                 }
 746                 if (old_bo && old_bo->shadow &&
 747                     user_bo->gem_base.size == old_bo->gem_base.size &&
 748                     plane->state->crtc     == new_state->crtc &&
 749                     plane->state->crtc_w   == new_state->crtc_w &&
 750                     plane->state->crtc_h   == new_state->crtc_h &&
 751                     plane->state->src_x    == new_state->src_x &&
 752                     plane->state->src_y    == new_state->src_y &&
 753                     plane->state->src_w    == new_state->src_w &&
 754                     plane->state->src_h    == new_state->src_h &&
 755                     plane->state->rotation == new_state->rotation &&
 756                     plane->state->zpos     == new_state->zpos) {
 757                         drm_gem_object_get(&old_bo->shadow->gem_base);
 758                         user_bo->shadow = old_bo->shadow;
 759                 } else {
 760                         qxl_bo_create(qdev, user_bo->gem_base.size,
 761                                       true, true, QXL_GEM_DOMAIN_VRAM, NULL,
 762                                       &user_bo->shadow);
 763                 }
 764         }
 765
 766         ret = qxl_bo_pin(user_bo);
 767         if (ret)
 768                 return ret;
 769
 770         return 0;
 771 }
 772
 773 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 774                                  struct drm_plane_state *old_state)
 775 {
 776         struct drm_gem_object *obj;
 777         struct qxl_bo *user_bo;
 778
 779         if (!old_state->fb) {
 780                 /*
 781                  * we never executed prepare_fb, so there's nothing to
 782                  * unpin.
 783                  */
 784                 return;
 785         }
 786
 787         obj = old_state->fb->obj[0];
 788         user_bo = gem_to_qxl_bo(obj);
 789         qxl_bo_unpin(user_bo);
 790
 791         if (user_bo->shadow && !user_bo->is_primary) {
 792                 drm_gem_object_put_unlocked(&user_bo->shadow->gem_base);
 793                 user_bo->shadow = NULL;
 794         }
 795 }
 796
 797 static const uint32_t qxl_cursor_plane_formats[] = {
 798         DRM_FORMAT_ARGB8888,
 799 };
 800
 801 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 802         .atomic_update = qxl_cursor_atomic_update,
 803         .atomic_disable = qxl_cursor_atomic_disable,
 804         .prepare_fb = qxl_plane_prepare_fb,
 805         .cleanup_fb = qxl_plane_cleanup_fb,
 806 };
 807
 808 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 809         .update_plane   = drm_atomic_helper_update_plane,
 810         .disable_plane  = drm_atomic_helper_disable_plane,
 811         .destroy        = drm_primary_helper_destroy,
 812         .reset          = drm_atomic_helper_plane_reset,
 813         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 814         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 815 };
 816
 817 static const uint32_t qxl_primary_plane_formats[] = {
 818         DRM_FORMAT_XRGB8888,
 819         DRM_FORMAT_ARGB8888,
 820 };
 821
 822 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 823         .atomic_check = qxl_primary_atomic_check,
 824         .atomic_update = qxl_primary_atomic_update,
 825         .atomic_disable = qxl_primary_atomic_disable,
 826         .prepare_fb = qxl_plane_prepare_fb,
 827         .cleanup_fb = qxl_plane_cleanup_fb,
 828 };
 829
 830 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 831         .update_plane   = drm_atomic_helper_update_plane,
 832         .disable_plane  = drm_atomic_helper_disable_plane,
 833         .destroy        = drm_primary_helper_destroy,
 834         .reset          = drm_atomic_helper_plane_reset,
 835         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 836         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 837 };
 838
 839 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 840                                           unsigned int possible_crtcs,
 841                                           enum drm_plane_type type)
 842 {
 843         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 844         struct drm_plane *plane;
 845         const struct drm_plane_funcs *funcs;
 846         const uint32_t *formats;
 847         int num_formats;
 848         int err;
 849
 850         if (type == DRM_PLANE_TYPE_PRIMARY) {
 851                 funcs = &qxl_primary_plane_funcs;
 852                 formats = qxl_primary_plane_formats;
 853                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 854                 helper_funcs = &primary_helper_funcs;
 855         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 856                 funcs = &qxl_cursor_plane_funcs;
 857                 formats = qxl_cursor_plane_formats;
 858                 helper_funcs = &qxl_cursor_helper_funcs;
 859                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 860         } else {
 861                 return ERR_PTR(-EINVAL);
 862         }
 863
 864         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 865         if (!plane)
 866                 return ERR_PTR(-ENOMEM);
 867
 868         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 869                                        funcs, formats, num_formats,
 870                                        NULL, type, NULL);
 871         if (err)
 872                 goto free_plane;
 873
 874         drm_plane_helper_add(plane, helper_funcs);
 875
 876         return plane;
 877
 878 free_plane:
 879         kfree(plane);
 880         return ERR_PTR(-EINVAL);
 881 }
 882
 883 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 884 {
 885         struct qxl_crtc *qxl_crtc;
 886         struct drm_plane *primary, *cursor;
 887         struct qxl_device *qdev = dev->dev_private;
 888         int r;
 889
 890         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 891         if (!qxl_crtc)
 892                 return -ENOMEM;
 893
 894         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 895         if (IS_ERR(primary)) {
 896                 r = -ENOMEM;
 897                 goto free_mem;
 898         }
 899
 900         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 901         if (IS_ERR(cursor)) {
 902                 r = -ENOMEM;
 903                 goto clean_primary;
 904         }
 905
 906         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 907                                       &qxl_crtc_funcs, NULL);
 908         if (r)
 909                 goto clean_cursor;
 910
 911         qxl_crtc->index = crtc_id;
 912         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 913         return 0;
 914
 915 clean_cursor:
 916         drm_plane_cleanup(cursor);
 917         kfree(cursor);
 918 clean_primary:
 919         drm_plane_cleanup(primary);
 920         kfree(primary);
 921 free_mem:
 922         kfree(qxl_crtc);
 923         return r;
 924 }
 925
 926 static int qxl_conn_get_modes(struct drm_connector *connector)
 927 {
 928         unsigned int pwidth = 1024;
 929         unsigned int pheight = 768;
 930         int ret = 0;
 931
 932         ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 933         if (ret < 0)
 934                 return ret;
 935         ret += qxl_add_common_modes(connector, pwidth, pheight);
 936         return ret;
 937 }
 938
 939 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
 940                                struct drm_display_mode *mode)
 941 {
 942         struct drm_device *ddev = connector->dev;
 943         struct qxl_device *qdev = ddev->dev_private;
 944         int i;
 945
 946         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 947          * TODO: check that the mode fits in the framebuffer */
 948
 949         if (qdev->monitors_config_width == mode->hdisplay &&
 950             qdev->monitors_config_height == mode->vdisplay)
 951                 return MODE_OK;
 952
 953         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 954                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 955                         return MODE_OK;
 956         }
 957         return MODE_BAD;
 958 }
 959
 960 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 961 {
 962         struct qxl_output *qxl_output =
 963                 drm_connector_to_qxl_output(connector);
 964
 965         DRM_DEBUG("\n");
 966         return &qxl_output->enc;
 967 }
 968
 969 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 970 };
 971
 972 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 973         .get_modes = qxl_conn_get_modes,
 974         .mode_valid = qxl_conn_mode_valid,
 975         .best_encoder = qxl_best_encoder,
 976 };
 977
 978 static enum drm_connector_status qxl_conn_detect(
 979                         struct drm_connector *connector,
 980                         bool force)
 981 {
 982         struct qxl_output *output =
 983                 drm_connector_to_qxl_output(connector);
 984         struct drm_device *ddev = connector->dev;
 985         struct qxl_device *qdev = ddev->dev_private;
 986         bool connected = false;
 987
 988         /* The first monitor is always connected */
 989         if (!qdev->client_monitors_config) {
 990                 if (output->index == 0)
 991                         connected = true;
 992         } else
 993                 connected = qdev->client_monitors_config->count > output->index &&
 994                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 995
 996         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 997
 998         return connected ? connector_status_connected
 999                          : connector_status_disconnected;
1000 }
1001
1002 static void qxl_conn_destroy(struct drm_connector *connector)
1003 {
1004         struct qxl_output *qxl_output =
1005                 drm_connector_to_qxl_output(connector);
1006
1007         drm_connector_unregister(connector);
1008         drm_connector_cleanup(connector);
1009         kfree(qxl_output);
1010 }
1011
1012 static const struct drm_connector_funcs qxl_connector_funcs = {
1013         .dpms = drm_helper_connector_dpms,
1014         .detect = qxl_conn_detect,
1015         .fill_modes = drm_helper_probe_single_connector_modes,
1016         .destroy = qxl_conn_destroy,
1017         .reset = drm_atomic_helper_connector_reset,
1018         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1019         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1020 };
1021
1022 static void qxl_enc_destroy(struct drm_encoder *encoder)
1023 {
1024         drm_encoder_cleanup(encoder);
1025 }
1026
1027 static const struct drm_encoder_funcs qxl_enc_funcs = {
1028         .destroy = qxl_enc_destroy,
1029 };
1030
1031 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1032 {
1033         if (qdev->hotplug_mode_update_property)
1034                 return 0;
1035
1036         qdev->hotplug_mode_update_property =
1037                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1038                                           "hotplug_mode_update", 0, 1);
1039
1040         return 0;
1041 }
1042
1043 static int qdev_output_init(struct drm_device *dev, int num_output)
1044 {
1045         struct qxl_device *qdev = dev->dev_private;
1046         struct qxl_output *qxl_output;
1047         struct drm_connector *connector;
1048         struct drm_encoder *encoder;
1049
1050         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1051         if (!qxl_output)
1052                 return -ENOMEM;
1053
1054         qxl_output->index = num_output;
1055
1056         connector = &qxl_output->base;
1057         encoder = &qxl_output->enc;
1058         drm_connector_init(dev, &qxl_output->base,
1059                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1060
1061         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1062                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1063
1064         /* we get HPD via client monitors config */
1065         connector->polled = DRM_CONNECTOR_POLL_HPD;
1066         encoder->possible_crtcs = 1 << num_output;
1067         drm_connector_attach_encoder(&qxl_output->base,
1068                                           &qxl_output->enc);
1069         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1070         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1071
1072         drm_object_attach_property(&connector->base,
1073                                    qdev->hotplug_mode_update_property, 0);
1074         drm_object_attach_property(&connector->base,
1075                                    dev->mode_config.suggested_x_property, 0);
1076         drm_object_attach_property(&connector->base,
1077                                    dev->mode_config.suggested_y_property, 0);
1078         return 0;
1079 }
1080
1081 static struct drm_framebuffer *
1082 qxl_user_framebuffer_create(struct drm_device *dev,
1083                             struct drm_file *file_priv,
1084                             const struct drm_mode_fb_cmd2 *mode_cmd)
1085 {
1086         return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1087                                             &qxl_fb_funcs);
1088 }
1089
1090 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1091         .fb_create = qxl_user_framebuffer_create,
1092         .atomic_check = drm_atomic_helper_check,
1093         .atomic_commit = drm_atomic_helper_commit,
1094 };
1095
1096 int qxl_create_monitors_object(struct qxl_device *qdev)
1097 {
1098         int ret;
1099         struct drm_gem_object *gobj;
1100         int max_allowed = qxl_num_crtc;
1101         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1102                 max_allowed * sizeof(struct qxl_head);
1103
1104         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1105                                     QXL_GEM_DOMAIN_VRAM,
1106                                     false, false, NULL, &gobj);
1107         if (ret) {
1108                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1109                 return -ENOMEM;
1110         }
1111         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1112
1113         ret = qxl_bo_pin(qdev->monitors_config_bo);
1114         if (ret)
1115                 return ret;
1116
1117         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1118
1119         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1120         qdev->ram_header->monitors_config =
1121                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1122
1123         memset(qdev->monitors_config, 0, monitors_config_size);
1124         qdev->monitors_config->max_allowed = max_allowed;
1125         return 0;
1126 }
1127
1128 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1129 {
1130         int ret;
1131
1132         qdev->monitors_config = NULL;
1133         qdev->ram_header->monitors_config = 0;
1134
1135         qxl_bo_kunmap(qdev->monitors_config_bo);
1136         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1137         if (ret)
1138                 return ret;
1139
1140         qxl_bo_unref(&qdev->monitors_config_bo);
1141         return 0;
1142 }
1143
1144 int qxl_modeset_init(struct qxl_device *qdev)
1145 {
1146         int i;
1147         int ret;
1148
1149         drm_mode_config_init(&qdev->ddev);
1150
1151         ret = qxl_create_monitors_object(qdev);
1152         if (ret)
1153                 return ret;
1154
1155         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1156
1157         /* modes will be validated against the framebuffer size */
1158         qdev->ddev.mode_config.min_width = 0;
1159         qdev->ddev.mode_config.min_height = 0;
1160         qdev->ddev.mode_config.max_width = 8192;
1161         qdev->ddev.mode_config.max_height = 8192;
1162
1163         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1164
1165         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1166         qxl_mode_create_hotplug_mode_update_property(qdev);
1167
1168         for (i = 0 ; i < qxl_num_crtc; ++i) {
1169                 qdev_crtc_init(&qdev->ddev, i);
1170                 qdev_output_init(&qdev->ddev, i);
1171         }
1172
1173         qxl_display_read_client_monitors_config(qdev);
1174
1175         drm_mode_config_reset(&qdev->ddev);
1176
1177         /* primary surface must be created by this point, to allow
1178          * issuing command queue commands and having them read by
1179          * spice server. */
1180         qxl_fbdev_init(qdev);
1181         return 0;
1182 }
1183
1184 void qxl_modeset_fini(struct qxl_device *qdev)
1185 {
1186         qxl_fbdev_fini(qdev);
1187
1188         qxl_destroy_monitors_object(qdev);
1189         drm_mode_config_cleanup(&qdev->ddev);
1190 }