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 #include <drm/drm_atomic_helper.h>
  34 #include <drm/drm_atomic.h>
  35
  36 static bool qxl_head_enabled(struct qxl_head *head)
  37 {
  38         return head->width && head->height;
  39 }
  40
  41 static void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  42 {
  43         if (qdev->client_monitors_config &&
  44             count > qdev->client_monitors_config->count) {
  45                 kfree(qdev->client_monitors_config);
  46                 qdev->client_monitors_config = NULL;
  47         }
  48         if (!qdev->client_monitors_config) {
  49                 qdev->client_monitors_config = kzalloc(
  50                                 sizeof(struct qxl_monitors_config) +
  51                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  52                 if (!qdev->client_monitors_config) {
  53                         qxl_io_log(qdev,
  54                                    "%s: allocation failure for %u heads\n",
  55                                    __func__, count);
  56                         return;
  57                 }
  58         }
  59         qdev->client_monitors_config->count = count;
  60 }
  61
  62 enum {
  63         MONITORS_CONFIG_MODIFIED,
  64         MONITORS_CONFIG_UNCHANGED,
  65         MONITORS_CONFIG_BAD_CRC,
  66 };
  67
  68 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  69 {
  70         int i;
  71         int num_monitors;
  72         uint32_t crc;
  73         int status = MONITORS_CONFIG_UNCHANGED;
  74
  75         num_monitors = qdev->rom->client_monitors_config.count;
  76         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  77                   sizeof(qdev->rom->client_monitors_config));
  78         if (crc != qdev->rom->client_monitors_config_crc) {
  79                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
  80                            sizeof(qdev->rom->client_monitors_config),
  81                            qdev->rom->client_monitors_config_crc);
  82                 return MONITORS_CONFIG_BAD_CRC;
  83         }
  84         if (!num_monitors) {
  85                 DRM_DEBUG_KMS("no client monitors configured\n");
  86                 return status;
  87         }
  88         if (num_monitors > qdev->monitors_config->max_allowed) {
  89                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  90                               qdev->monitors_config->max_allowed, num_monitors);
  91                 num_monitors = qdev->monitors_config->max_allowed;
  92         } else {
  93                 num_monitors = qdev->rom->client_monitors_config.count;
  94         }
  95         if (qdev->client_monitors_config
  96               && (num_monitors != qdev->client_monitors_config->count)) {
  97                 status = MONITORS_CONFIG_MODIFIED;
  98         }
  99         qxl_alloc_client_monitors_config(qdev, num_monitors);
 100         /* we copy max from the client but it isn't used */
 101         qdev->client_monitors_config->max_allowed =
 102                                 qdev->monitors_config->max_allowed;
 103         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
 104                 struct qxl_urect *c_rect =
 105                         &qdev->rom->client_monitors_config.heads[i];
 106                 struct qxl_head *client_head =
 107                         &qdev->client_monitors_config->heads[i];
 108                 if (client_head->x != c_rect->left) {
 109                         client_head->x = c_rect->left;
 110                         status = MONITORS_CONFIG_MODIFIED;
 111                 }
 112                 if (client_head->y != c_rect->top) {
 113                         client_head->y = c_rect->top;
 114                         status = MONITORS_CONFIG_MODIFIED;
 115                 }
 116                 if (client_head->width != c_rect->right - c_rect->left) {
 117                         client_head->width = c_rect->right - c_rect->left;
 118                         status = MONITORS_CONFIG_MODIFIED;
 119                 }
 120                 if (client_head->height != c_rect->bottom - c_rect->top) {
 121                         client_head->height = c_rect->bottom - c_rect->top;
 122                         status = MONITORS_CONFIG_MODIFIED;
 123                 }
 124                 if (client_head->surface_id != 0) {
 125                         client_head->surface_id = 0;
 126                         status = MONITORS_CONFIG_MODIFIED;
 127                 }
 128                 if (client_head->id != i) {
 129                         client_head->id = i;
 130                         status = MONITORS_CONFIG_MODIFIED;
 131                 }
 132                 if (client_head->flags != 0) {
 133                         client_head->flags = 0;
 134                         status = MONITORS_CONFIG_MODIFIED;
 135                 }
 136                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 137                           client_head->x, client_head->y);
 138         }
 139
 140         return status;
 141 }
 142
 143 static void qxl_update_offset_props(struct qxl_device *qdev)
 144 {
 145         struct drm_device *dev = &qdev->ddev;
 146         struct drm_connector *connector;
 147         struct qxl_output *output;
 148         struct qxl_head *head;
 149
 150         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 151                 output = drm_connector_to_qxl_output(connector);
 152
 153                 head = &qdev->client_monitors_config->heads[output->index];
 154
 155                 drm_object_property_set_value(&connector->base,
 156                         dev->mode_config.suggested_x_property, head->x);
 157                 drm_object_property_set_value(&connector->base,
 158                         dev->mode_config.suggested_y_property, head->y);
 159         }
 160 }
 161
 162 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 163 {
 164         struct drm_device *dev = &qdev->ddev;
 165         int status, retries;
 166
 167         for (retries = 0; retries < 10; retries++) {
 168                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 169                 if (status != MONITORS_CONFIG_BAD_CRC)
 170                         break;
 171                 udelay(5);
 172         }
 173         if (status == MONITORS_CONFIG_BAD_CRC) {
 174                 qxl_io_log(qdev, "config: bad crc\n");
 175                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 176                 return;
 177         }
 178         if (status == MONITORS_CONFIG_UNCHANGED) {
 179                 qxl_io_log(qdev, "config: unchanged\n");
 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 pwidth,
 257                                 unsigned pheight)
 258 {
 259         struct drm_device *dev = connector->dev;
 260         struct drm_display_mode *mode = NULL;
 261         int i;
 262         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 263                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 264                                     60, false, false, false);
 265                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 266                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 267                 drm_mode_probed_add(connector, mode);
 268         }
 269         return i - 1;
 270 }
 271
 272 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 273                                   struct drm_crtc_state *old_crtc_state)
 274 {
 275         struct drm_device *dev = crtc->dev;
 276         struct drm_pending_vblank_event *event;
 277         unsigned long flags;
 278
 279         if (crtc->state && crtc->state->event) {
 280                 event = crtc->state->event;
 281                 crtc->state->event = NULL;
 282
 283                 spin_lock_irqsave(&dev->event_lock, flags);
 284                 drm_crtc_send_vblank_event(crtc, event);
 285                 spin_unlock_irqrestore(&dev->event_lock, flags);
 286         }
 287 }
 288
 289 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 290 {
 291         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 292
 293         drm_crtc_cleanup(crtc);
 294         kfree(qxl_crtc);
 295 }
 296
 297 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 298         .set_config = drm_atomic_helper_set_config,
 299         .destroy = qxl_crtc_destroy,
 300         .page_flip = drm_atomic_helper_page_flip,
 301         .reset = drm_atomic_helper_crtc_reset,
 302         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 303         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 304 };
 305
 306 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 307 {
 308         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 309
 310         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 311         drm_framebuffer_cleanup(fb);
 312         kfree(qxl_fb);
 313 }
 314
 315 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 316                                          struct drm_file *file_priv,
 317                                          unsigned flags, unsigned color,
 318                                          struct drm_clip_rect *clips,
 319                                          unsigned num_clips)
 320 {
 321         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 322         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 323         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 324         struct drm_clip_rect norect;
 325         struct qxl_bo *qobj;
 326         int inc = 1;
 327
 328         drm_modeset_lock_all(fb->dev);
 329
 330         qobj = gem_to_qxl_bo(qxl_fb->obj);
 331         /* if we aren't primary surface ignore this */
 332         if (!qobj->is_primary) {
 333                 drm_modeset_unlock_all(fb->dev);
 334                 return 0;
 335         }
 336
 337         if (!num_clips) {
 338                 num_clips = 1;
 339                 clips = &norect;
 340                 norect.x1 = norect.y1 = 0;
 341                 norect.x2 = fb->width;
 342                 norect.y2 = fb->height;
 343         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 344                 num_clips /= 2;
 345                 inc = 2; /* skip source rects */
 346         }
 347
 348         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 349                           clips, num_clips, inc);
 350
 351         drm_modeset_unlock_all(fb->dev);
 352
 353         return 0;
 354 }
 355
 356 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 357         .destroy = qxl_user_framebuffer_destroy,
 358         .dirty = qxl_framebuffer_surface_dirty,
 359 /*      TODO?
 360  *      .create_handle = qxl_user_framebuffer_create_handle, */
 361 };
 362
 363 int
 364 qxl_framebuffer_init(struct drm_device *dev,
 365                      struct qxl_framebuffer *qfb,
 366                      const struct drm_mode_fb_cmd2 *mode_cmd,
 367                      struct drm_gem_object *obj,
 368                      const struct drm_framebuffer_funcs *funcs)
 369 {
 370         int ret;
 371
 372         qfb->obj = obj;
 373         drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
 374         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 375         if (ret) {
 376                 qfb->obj = NULL;
 377                 return ret;
 378         }
 379         return 0;
 380 }
 381
 382 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 383 {
 384 }
 385
 386 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 387                                   const struct drm_display_mode *mode,
 388                                   struct drm_display_mode *adjusted_mode)
 389 {
 390         struct drm_device *dev = crtc->dev;
 391         struct qxl_device *qdev = dev->dev_private;
 392
 393         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 394                    __func__,
 395                    mode->hdisplay, mode->vdisplay,
 396                    adjusted_mode->hdisplay,
 397                    adjusted_mode->vdisplay);
 398         return true;
 399 }
 400
 401 static void
 402 qxl_send_monitors_config(struct qxl_device *qdev)
 403 {
 404         int i;
 405
 406         BUG_ON(!qdev->ram_header->monitors_config);
 407
 408         if (qdev->monitors_config->count == 0) {
 409                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 410                 return;
 411         }
 412         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 413                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 414
 415                 if (head->y > 8192 || head->x > 8192 ||
 416                     head->width > 8192 || head->height > 8192) {
 417                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 418                                   i, head->width, head->height,
 419                                   head->x, head->y);
 420                         return;
 421                 }
 422         }
 423         qxl_io_monitors_config(qdev);
 424 }
 425
 426 static void qxl_monitors_config_set(struct qxl_device *qdev,
 427                                     int index,
 428                                     unsigned x, unsigned y,
 429                                     unsigned width, unsigned height,
 430                                     unsigned surf_id)
 431 {
 432         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 433         qdev->monitors_config->heads[index].x = x;
 434         qdev->monitors_config->heads[index].y = y;
 435         qdev->monitors_config->heads[index].width = width;
 436         qdev->monitors_config->heads[index].height = height;
 437         qdev->monitors_config->heads[index].surface_id = surf_id;
 438
 439 }
 440
 441 void qxl_mode_set_nofb(struct drm_crtc *crtc)
 442 {
 443         struct qxl_device *qdev = crtc->dev->dev_private;
 444         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 445         struct drm_display_mode *mode = &crtc->mode;
 446
 447         DRM_DEBUG("Mode set (%d,%d)\n",
 448                   mode->hdisplay, mode->vdisplay);
 449
 450         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
 451                                 mode->hdisplay, mode->vdisplay, 0);
 452
 453 }
 454
 455 static void qxl_crtc_commit(struct drm_crtc *crtc)
 456 {
 457         DRM_DEBUG("\n");
 458 }
 459
 460 static void qxl_crtc_disable(struct drm_crtc *crtc)
 461 {
 462         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 463         struct qxl_device *qdev = crtc->dev->dev_private;
 464
 465         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 466
 467         qxl_send_monitors_config(qdev);
 468 }
 469
 470 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 471         .dpms = qxl_crtc_dpms,
 472         .disable = qxl_crtc_disable,
 473         .mode_fixup = qxl_crtc_mode_fixup,
 474         .mode_set_nofb = qxl_mode_set_nofb,
 475         .commit = qxl_crtc_commit,
 476         .atomic_flush = qxl_crtc_atomic_flush,
 477 };
 478
 479 int qxl_primary_atomic_check(struct drm_plane *plane,
 480                              struct drm_plane_state *state)
 481 {
 482         struct qxl_device *qdev = plane->dev->dev_private;
 483         struct qxl_framebuffer *qfb;
 484         struct qxl_bo *bo;
 485
 486         if (!state->crtc || !state->fb)
 487                 return 0;
 488
 489         qfb = to_qxl_framebuffer(state->fb);
 490         bo = gem_to_qxl_bo(qfb->obj);
 491
 492         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 493                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 494                 return -EINVAL;
 495         }
 496
 497         return 0;
 498 }
 499
 500 static void qxl_primary_atomic_update(struct drm_plane *plane,
 501                                       struct drm_plane_state *old_state)
 502 {
 503         struct qxl_device *qdev = plane->dev->dev_private;
 504         struct qxl_framebuffer *qfb =
 505                 to_qxl_framebuffer(plane->state->fb);
 506         struct qxl_framebuffer *qfb_old;
 507         struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 508         struct qxl_bo *bo_old;
 509         struct drm_clip_rect norect = {
 510             .x1 = 0,
 511             .y1 = 0,
 512             .x2 = qfb->base.width,
 513             .y2 = qfb->base.height
 514         };
 515
 516         if (!old_state->fb) {
 517                 qxl_io_log(qdev,
 518                            "create primary fb: %dx%d,%d,%d\n",
 519                            bo->surf.width, bo->surf.height,
 520                            bo->surf.stride, bo->surf.format);
 521
 522                 qxl_io_create_primary(qdev, 0, bo);
 523                 bo->is_primary = true;
 524                 return;
 525
 526         } else {
 527                 qfb_old = to_qxl_framebuffer(old_state->fb);
 528                 bo_old = gem_to_qxl_bo(qfb_old->obj);
 529                 bo_old->is_primary = false;
 530         }
 531
 532         bo->is_primary = true;
 533         qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
 534 }
 535
 536 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 537                                        struct drm_plane_state *old_state)
 538 {
 539         struct qxl_device *qdev = plane->dev->dev_private;
 540
 541         if (old_state->fb)
 542         {       struct qxl_framebuffer *qfb =
 543                         to_qxl_framebuffer(old_state->fb);
 544                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 545
 546                 qxl_io_destroy_primary(qdev);
 547                 bo->is_primary = false;
 548         }
 549 }
 550
 551 int qxl_plane_atomic_check(struct drm_plane *plane,
 552                            struct drm_plane_state *state)
 553 {
 554         return 0;
 555 }
 556
 557 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 558                                      struct drm_plane_state *old_state)
 559 {
 560         struct drm_device *dev = plane->dev;
 561         struct qxl_device *qdev = dev->dev_private;
 562         struct drm_framebuffer *fb = plane->state->fb;
 563         struct qxl_release *release;
 564         struct qxl_cursor_cmd *cmd;
 565         struct qxl_cursor *cursor;
 566         struct drm_gem_object *obj;
 567         struct qxl_bo *cursor_bo, *user_bo = NULL;
 568         int ret;
 569         void *user_ptr;
 570         int size = 64*64*4;
 571
 572         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 573                                          QXL_RELEASE_CURSOR_CMD,
 574                                          &release, NULL);
 575         if (ret)
 576                 return;
 577
 578         if (fb != old_state->fb) {
 579                 obj = to_qxl_framebuffer(fb)->obj;
 580                 user_bo = gem_to_qxl_bo(obj);
 581
 582                 /* pinning is done in the prepare/cleanup framevbuffer */
 583                 ret = qxl_bo_kmap(user_bo, &user_ptr);
 584                 if (ret)
 585                         goto out_free_release;
 586
 587                 ret = qxl_alloc_bo_reserved(qdev, release,
 588                                             sizeof(struct qxl_cursor) + size,
 589                                             &cursor_bo);
 590                 if (ret)
 591                         goto out_kunmap;
 592
 593                 ret = qxl_release_reserve_list(release, true);
 594                 if (ret)
 595                         goto out_free_bo;
 596
 597                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 598                 if (ret)
 599                         goto out_backoff;
 600
 601                 cursor->header.unique = 0;
 602                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 603                 cursor->header.width = 64;
 604                 cursor->header.height = 64;
 605                 cursor->header.hot_spot_x = fb->hot_x;
 606                 cursor->header.hot_spot_y = fb->hot_y;
 607                 cursor->data_size = size;
 608                 cursor->chunk.next_chunk = 0;
 609                 cursor->chunk.prev_chunk = 0;
 610                 cursor->chunk.data_size = size;
 611                 memcpy(cursor->chunk.data, user_ptr, size);
 612                 qxl_bo_kunmap(cursor_bo);
 613                 qxl_bo_kunmap(user_bo);
 614
 615                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 616                 cmd->u.set.visible = 1;
 617                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
 618                                                            cursor_bo, 0);
 619                 cmd->type = QXL_CURSOR_SET;
 620         } else {
 621
 622                 ret = qxl_release_reserve_list(release, true);
 623                 if (ret)
 624                         goto out_free_release;
 625
 626                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 627                 cmd->type = QXL_CURSOR_MOVE;
 628         }
 629
 630         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
 631         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
 632
 633         qxl_release_unmap(qdev, release, &cmd->release_info);
 634         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 635         qxl_release_fence_buffer_objects(release);
 636
 637         return;
 638
 639 out_backoff:
 640         qxl_release_backoff_reserve_list(release);
 641 out_free_bo:
 642         qxl_bo_unref(&cursor_bo);
 643 out_kunmap:
 644         qxl_bo_kunmap(user_bo);
 645 out_free_release:
 646         qxl_release_free(qdev, release);
 647         return;
 648
 649 }
 650
 651 void qxl_cursor_atomic_disable(struct drm_plane *plane,
 652                                struct drm_plane_state *old_state)
 653 {
 654         struct qxl_device *qdev = plane->dev->dev_private;
 655         struct qxl_release *release;
 656         struct qxl_cursor_cmd *cmd;
 657         int ret;
 658
 659         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 660                                          QXL_RELEASE_CURSOR_CMD,
 661                                          &release, NULL);
 662         if (ret)
 663                 return;
 664
 665         ret = qxl_release_reserve_list(release, true);
 666         if (ret) {
 667                 qxl_release_free(qdev, release);
 668                 return;
 669         }
 670
 671         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 672         cmd->type = QXL_CURSOR_HIDE;
 673         qxl_release_unmap(qdev, release, &cmd->release_info);
 674
 675         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 676         qxl_release_fence_buffer_objects(release);
 677 }
 678
 679 int qxl_plane_prepare_fb(struct drm_plane *plane,
 680                          struct drm_plane_state *new_state)
 681 {
 682         struct drm_gem_object *obj;
 683         struct qxl_bo *user_bo;
 684         int ret;
 685
 686         if (!new_state->fb)
 687                 return 0;
 688
 689         obj = to_qxl_framebuffer(new_state->fb)->obj;
 690         user_bo = gem_to_qxl_bo(obj);
 691
 692         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 693         if (ret)
 694                 return ret;
 695
 696         return 0;
 697 }
 698
 699 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 700                                  struct drm_plane_state *old_state)
 701 {
 702         struct drm_gem_object *obj;
 703         struct qxl_bo *user_bo;
 704
 705         if (!plane->state->fb) {
 706                 /* we never executed prepare_fb, so there's nothing to
 707                  * unpin.
 708                  */
 709                 return;
 710         }
 711
 712         obj = to_qxl_framebuffer(plane->state->fb)->obj;
 713         user_bo = gem_to_qxl_bo(obj);
 714         qxl_bo_unpin(user_bo);
 715 }
 716
 717 static const uint32_t qxl_cursor_plane_formats[] = {
 718         DRM_FORMAT_ARGB8888,
 719 };
 720
 721 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 722         .atomic_check = qxl_plane_atomic_check,
 723         .atomic_update = qxl_cursor_atomic_update,
 724         .atomic_disable = qxl_cursor_atomic_disable,
 725         .prepare_fb = qxl_plane_prepare_fb,
 726         .cleanup_fb = qxl_plane_cleanup_fb,
 727 };
 728
 729 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 730         .update_plane   = drm_atomic_helper_update_plane,
 731         .disable_plane  = drm_atomic_helper_disable_plane,
 732         .destroy        = drm_primary_helper_destroy,
 733         .reset          = drm_atomic_helper_plane_reset,
 734         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 735         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 736 };
 737
 738 static const uint32_t qxl_primary_plane_formats[] = {
 739         DRM_FORMAT_XRGB8888,
 740         DRM_FORMAT_ARGB8888,
 741 };
 742
 743 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 744         .atomic_check = qxl_primary_atomic_check,
 745         .atomic_update = qxl_primary_atomic_update,
 746         .atomic_disable = qxl_primary_atomic_disable,
 747         .prepare_fb = qxl_plane_prepare_fb,
 748         .cleanup_fb = qxl_plane_cleanup_fb,
 749 };
 750
 751 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 752         .update_plane   = drm_atomic_helper_update_plane,
 753         .disable_plane  = drm_atomic_helper_disable_plane,
 754         .destroy        = drm_primary_helper_destroy,
 755         .reset          = drm_atomic_helper_plane_reset,
 756         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 757         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 758 };
 759
 760 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 761                                           unsigned int possible_crtcs,
 762                                           enum drm_plane_type type)
 763 {
 764         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 765         struct drm_plane *plane;
 766         const struct drm_plane_funcs *funcs;
 767         const uint32_t *formats;
 768         int num_formats;
 769         int err;
 770
 771         if (type == DRM_PLANE_TYPE_PRIMARY) {
 772                 funcs = &qxl_primary_plane_funcs;
 773                 formats = qxl_primary_plane_formats;
 774                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 775                 helper_funcs = &primary_helper_funcs;
 776         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 777                 funcs = &qxl_cursor_plane_funcs;
 778                 formats = qxl_cursor_plane_formats;
 779                 helper_funcs = &qxl_cursor_helper_funcs;
 780                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 781         } else {
 782                 return ERR_PTR(-EINVAL);
 783         }
 784
 785         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 786         if (!plane)
 787                 return ERR_PTR(-ENOMEM);
 788
 789         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 790                                        funcs, formats, num_formats,
 791                                        type, NULL);
 792         if (err)
 793                 goto free_plane;
 794
 795         drm_plane_helper_add(plane, helper_funcs);
 796
 797         return plane;
 798
 799 free_plane:
 800         kfree(plane);
 801         return ERR_PTR(-EINVAL);
 802 }
 803
 804 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 805 {
 806         struct qxl_crtc *qxl_crtc;
 807         struct drm_plane *primary, *cursor;
 808         struct qxl_device *qdev = dev->dev_private;
 809         int r;
 810
 811         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 812         if (!qxl_crtc)
 813                 return -ENOMEM;
 814
 815         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 816         if (IS_ERR(primary)) {
 817                 r = -ENOMEM;
 818                 goto free_mem;
 819         }
 820
 821         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 822         if (IS_ERR(cursor)) {
 823                 r = -ENOMEM;
 824                 goto clean_primary;
 825         }
 826
 827         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 828                                       &qxl_crtc_funcs, NULL);
 829         if (r)
 830                 goto clean_cursor;
 831
 832         qxl_crtc->index = crtc_id;
 833         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 834         return 0;
 835
 836 clean_cursor:
 837         drm_plane_cleanup(cursor);
 838         kfree(cursor);
 839 clean_primary:
 840         drm_plane_cleanup(primary);
 841         kfree(primary);
 842 free_mem:
 843         kfree(qxl_crtc);
 844         return r;
 845 }
 846
 847 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 848 {
 849         DRM_DEBUG("\n");
 850 }
 851
 852 static void qxl_enc_prepare(struct drm_encoder *encoder)
 853 {
 854         DRM_DEBUG("\n");
 855 }
 856
 857 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 858                 struct drm_encoder *encoder)
 859 {
 860         int i;
 861         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 862         struct qxl_head *head;
 863         struct drm_display_mode *mode;
 864
 865         BUG_ON(!encoder);
 866         /* TODO: ugly, do better */
 867         i = output->index;
 868         if (!qdev->monitors_config ||
 869             qdev->monitors_config->max_allowed <= i) {
 870                 DRM_ERROR(
 871                 "head number too large or missing monitors config: %p, %d",
 872                 qdev->monitors_config,
 873                 qdev->monitors_config ?
 874                         qdev->monitors_config->max_allowed : -1);
 875                 return;
 876         }
 877         if (!encoder->crtc) {
 878                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 879                 return;
 880         }
 881         if (i != 0)
 882                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 883         head = &qdev->monitors_config->heads[i];
 884         head->id = i;
 885         if (encoder->crtc->enabled) {
 886                 mode = &encoder->crtc->mode;
 887                 head->width = mode->hdisplay;
 888                 head->height = mode->vdisplay;
 889                 head->x = encoder->crtc->x;
 890                 head->y = encoder->crtc->y;
 891                 if (qdev->monitors_config->count < i + 1)
 892                         qdev->monitors_config->count = i + 1;
 893         } else {
 894                 head->width = 0;
 895                 head->height = 0;
 896                 head->x = 0;
 897                 head->y = 0;
 898         }
 899         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 900                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 901         head->flags = 0;
 902         /* TODO - somewhere else to call this for multiple monitors
 903          * (config_commit?) */
 904         qxl_send_monitors_config(qdev);
 905 }
 906
 907 static void qxl_enc_commit(struct drm_encoder *encoder)
 908 {
 909         struct qxl_device *qdev = encoder->dev->dev_private;
 910
 911         qxl_write_monitors_config_for_encoder(qdev, encoder);
 912         DRM_DEBUG("\n");
 913 }
 914
 915 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 916                                 struct drm_display_mode *mode,
 917                                 struct drm_display_mode *adjusted_mode)
 918 {
 919         DRM_DEBUG("\n");
 920 }
 921
 922 static int qxl_conn_get_modes(struct drm_connector *connector)
 923 {
 924         unsigned pwidth = 1024;
 925         unsigned pheight = 768;
 926         int ret = 0;
 927
 928         ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 929         if (ret < 0)
 930                 return ret;
 931         ret += qxl_add_common_modes(connector, pwidth, pheight);
 932         return ret;
 933 }
 934
 935 static int qxl_conn_mode_valid(struct drm_connector *connector,
 936                                struct drm_display_mode *mode)
 937 {
 938         struct drm_device *ddev = connector->dev;
 939         struct qxl_device *qdev = ddev->dev_private;
 940         int i;
 941
 942         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 943          * TODO: check that the mode fits in the framebuffer */
 944
 945         if(qdev->monitors_config_width == mode->hdisplay &&
 946            qdev->monitors_config_height == mode->vdisplay)
 947                 return MODE_OK;
 948
 949         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 950                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 951                         return MODE_OK;
 952         }
 953         return MODE_BAD;
 954 }
 955
 956 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 957 {
 958         struct qxl_output *qxl_output =
 959                 drm_connector_to_qxl_output(connector);
 960
 961         DRM_DEBUG("\n");
 962         return &qxl_output->enc;
 963 }
 964
 965
 966 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 967         .dpms = qxl_enc_dpms,
 968         .prepare = qxl_enc_prepare,
 969         .mode_set = qxl_enc_mode_set,
 970         .commit = qxl_enc_commit,
 971 };
 972
 973 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 974         .get_modes = qxl_conn_get_modes,
 975         .mode_valid = qxl_conn_mode_valid,
 976         .best_encoder = qxl_best_encoder,
 977 };
 978
 979 static enum drm_connector_status qxl_conn_detect(
 980                         struct drm_connector *connector,
 981                         bool force)
 982 {
 983         struct qxl_output *output =
 984                 drm_connector_to_qxl_output(connector);
 985         struct drm_device *ddev = connector->dev;
 986         struct qxl_device *qdev = ddev->dev_private;
 987         bool connected = false;
 988
 989         /* The first monitor is always connected */
 990         if (!qdev->client_monitors_config) {
 991                 if (output->index == 0)
 992                         connected = true;
 993         } else
 994                 connected = qdev->client_monitors_config->count > output->index &&
 995                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 996
 997         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 998         if (!connected)
 999                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
1000
1001         return connected ? connector_status_connected
1002                          : connector_status_disconnected;
1003 }
1004
1005 static int qxl_conn_set_property(struct drm_connector *connector,
1006                                    struct drm_property *property,
1007                                    uint64_t value)
1008 {
1009         DRM_DEBUG("\n");
1010         return 0;
1011 }
1012
1013 static void qxl_conn_destroy(struct drm_connector *connector)
1014 {
1015         struct qxl_output *qxl_output =
1016                 drm_connector_to_qxl_output(connector);
1017
1018         drm_connector_unregister(connector);
1019         drm_connector_cleanup(connector);
1020         kfree(qxl_output);
1021 }
1022
1023 static const struct drm_connector_funcs qxl_connector_funcs = {
1024         .dpms = drm_helper_connector_dpms,
1025         .detect = qxl_conn_detect,
1026         .fill_modes = drm_helper_probe_single_connector_modes,
1027         .set_property = qxl_conn_set_property,
1028         .destroy = qxl_conn_destroy,
1029         .reset = drm_atomic_helper_connector_reset,
1030         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1031         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1032 };
1033
1034 static void qxl_enc_destroy(struct drm_encoder *encoder)
1035 {
1036         drm_encoder_cleanup(encoder);
1037 }
1038
1039 static const struct drm_encoder_funcs qxl_enc_funcs = {
1040         .destroy = qxl_enc_destroy,
1041 };
1042
1043 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1044 {
1045         if (qdev->hotplug_mode_update_property)
1046                 return 0;
1047
1048         qdev->hotplug_mode_update_property =
1049                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1050                                           "hotplug_mode_update", 0, 1);
1051
1052         return 0;
1053 }
1054
1055 static int qdev_output_init(struct drm_device *dev, int num_output)
1056 {
1057         struct qxl_device *qdev = dev->dev_private;
1058         struct qxl_output *qxl_output;
1059         struct drm_connector *connector;
1060         struct drm_encoder *encoder;
1061
1062         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1063         if (!qxl_output)
1064                 return -ENOMEM;
1065
1066         qxl_output->index = num_output;
1067
1068         connector = &qxl_output->base;
1069         encoder = &qxl_output->enc;
1070         drm_connector_init(dev, &qxl_output->base,
1071                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1072
1073         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1074                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1075
1076         /* we get HPD via client monitors config */
1077         connector->polled = DRM_CONNECTOR_POLL_HPD;
1078         encoder->possible_crtcs = 1 << num_output;
1079         drm_mode_connector_attach_encoder(&qxl_output->base,
1080                                           &qxl_output->enc);
1081         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1082         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1083
1084         drm_object_attach_property(&connector->base,
1085                                    qdev->hotplug_mode_update_property, 0);
1086         drm_object_attach_property(&connector->base,
1087                                    dev->mode_config.suggested_x_property, 0);
1088         drm_object_attach_property(&connector->base,
1089                                    dev->mode_config.suggested_y_property, 0);
1090         return 0;
1091 }
1092
1093 static struct drm_framebuffer *
1094 qxl_user_framebuffer_create(struct drm_device *dev,
1095                             struct drm_file *file_priv,
1096                             const struct drm_mode_fb_cmd2 *mode_cmd)
1097 {
1098         struct drm_gem_object *obj;
1099         struct qxl_framebuffer *qxl_fb;
1100         int ret;
1101
1102         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1103         if (!obj)
1104                 return NULL;
1105
1106         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1107         if (qxl_fb == NULL)
1108                 return NULL;
1109
1110         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1111         if (ret) {
1112                 kfree(qxl_fb);
1113                 drm_gem_object_unreference_unlocked(obj);
1114                 return NULL;
1115         }
1116
1117         return &qxl_fb->base;
1118 }
1119
1120 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1121         .fb_create = qxl_user_framebuffer_create,
1122         .atomic_check = drm_atomic_helper_check,
1123         .atomic_commit = drm_atomic_helper_commit,
1124 };
1125
1126 int qxl_create_monitors_object(struct qxl_device *qdev)
1127 {
1128         int ret;
1129         struct drm_gem_object *gobj;
1130         int max_allowed = qxl_num_crtc;
1131         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1132                 max_allowed * sizeof(struct qxl_head);
1133
1134         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1135                                     QXL_GEM_DOMAIN_VRAM,
1136                                     false, false, NULL, &gobj);
1137         if (ret) {
1138                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1139                 return -ENOMEM;
1140         }
1141         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1142
1143         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1144         if (ret)
1145                 return ret;
1146
1147         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1148
1149         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1150         qdev->ram_header->monitors_config =
1151                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1152
1153         memset(qdev->monitors_config, 0, monitors_config_size);
1154         qdev->monitors_config->max_allowed = max_allowed;
1155         return 0;
1156 }
1157
1158 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1159 {
1160         int ret;
1161
1162         qdev->monitors_config = NULL;
1163         qdev->ram_header->monitors_config = 0;
1164
1165         qxl_bo_kunmap(qdev->monitors_config_bo);
1166         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1167         if (ret)
1168                 return ret;
1169
1170         qxl_bo_unref(&qdev->monitors_config_bo);
1171         return 0;
1172 }
1173
1174 int qxl_modeset_init(struct qxl_device *qdev)
1175 {
1176         int i;
1177         int ret;
1178
1179         drm_mode_config_init(&qdev->ddev);
1180
1181         ret = qxl_create_monitors_object(qdev);
1182         if (ret)
1183                 return ret;
1184
1185         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1186
1187         /* modes will be validated against the framebuffer size */
1188         qdev->ddev.mode_config.min_width = 0;
1189         qdev->ddev.mode_config.min_height = 0;
1190         qdev->ddev.mode_config.max_width = 8192;
1191         qdev->ddev.mode_config.max_height = 8192;
1192
1193         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1194
1195         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1196         qxl_mode_create_hotplug_mode_update_property(qdev);
1197
1198         for (i = 0 ; i < qxl_num_crtc; ++i) {
1199                 qdev_crtc_init(&qdev->ddev, i);
1200                 qdev_output_init(&qdev->ddev, i);
1201         }
1202
1203         qxl_display_read_client_monitors_config(qdev);
1204         qdev->mode_info.mode_config_initialized = true;
1205
1206         drm_mode_config_reset(&qdev->ddev);
1207
1208         /* primary surface must be created by this point, to allow
1209          * issuing command queue commands and having them read by
1210          * spice server. */
1211         qxl_fbdev_init(qdev);
1212         return 0;
1213 }
1214
1215 void qxl_modeset_fini(struct qxl_device *qdev)
1216 {
1217         qxl_fbdev_fini(qdev);
1218
1219         qxl_destroy_monitors_object(qdev);
1220         if (qdev->mode_info.mode_config_initialized) {
1221                 drm_mode_config_cleanup(&qdev->ddev);
1222                 qdev->mode_info.mode_config_initialized = false;
1223         }
1224 }