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
  32 #include "qxl_drv.h"
  33 #include "qxl_object.h"
  34
  35 static bool qxl_head_enabled(struct qxl_head *head)
  36 {
  37         return head->width && head->height;
  38 }
  39
  40 static void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  41 {
  42         if (qdev->client_monitors_config &&
  43             count > qdev->client_monitors_config->count) {
  44                 kfree(qdev->client_monitors_config);
  45                 qdev->client_monitors_config = NULL;
  46         }
  47         if (!qdev->client_monitors_config) {
  48                 qdev->client_monitors_config = kzalloc(
  49                                 sizeof(struct qxl_monitors_config) +
  50                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  51                 if (!qdev->client_monitors_config) {
  52                         qxl_io_log(qdev,
  53                                    "%s: allocation failure for %u heads\n",
  54                                    __func__, count);
  55                         return;
  56                 }
  57         }
  58         qdev->client_monitors_config->count = count;
  59 }
  60
  61 enum {
  62         MONITORS_CONFIG_MODIFIED,
  63         MONITORS_CONFIG_UNCHANGED,
  64         MONITORS_CONFIG_BAD_CRC,
  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                 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
  79                            sizeof(qdev->rom->client_monitors_config),
  80                            qdev->rom->client_monitors_config_crc);
  81                 return MONITORS_CONFIG_BAD_CRC;
  82         }
  83         if (!num_monitors) {
  84                 DRM_DEBUG_KMS("no client monitors configured\n");
  85                 return status;
  86         }
  87         if (num_monitors > qdev->monitors_config->max_allowed) {
  88                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  89                               qdev->monitors_config->max_allowed, num_monitors);
  90                 num_monitors = qdev->monitors_config->max_allowed;
  91         } else {
  92                 num_monitors = qdev->rom->client_monitors_config.count;
  93         }
  94         if (qdev->client_monitors_config
  95               && (num_monitors != qdev->client_monitors_config->count)) {
  96                 status = MONITORS_CONFIG_MODIFIED;
  97         }
  98         qxl_alloc_client_monitors_config(qdev, num_monitors);
  99         /* we copy max from the client but it isn't used */
 100         qdev->client_monitors_config->max_allowed =
 101                                 qdev->monitors_config->max_allowed;
 102         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
 103                 struct qxl_urect *c_rect =
 104                         &qdev->rom->client_monitors_config.heads[i];
 105                 struct qxl_head *client_head =
 106                         &qdev->client_monitors_config->heads[i];
 107                 if (client_head->x != c_rect->left) {
 108                         client_head->x = c_rect->left;
 109                         status = MONITORS_CONFIG_MODIFIED;
 110                 }
 111                 if (client_head->y != c_rect->top) {
 112                         client_head->y = c_rect->top;
 113                         status = MONITORS_CONFIG_MODIFIED;
 114                 }
 115                 if (client_head->width != c_rect->right - c_rect->left) {
 116                         client_head->width = c_rect->right - c_rect->left;
 117                         status = MONITORS_CONFIG_MODIFIED;
 118                 }
 119                 if (client_head->height != c_rect->bottom - c_rect->top) {
 120                         client_head->height = c_rect->bottom - c_rect->top;
 121                         status = MONITORS_CONFIG_MODIFIED;
 122                 }
 123                 if (client_head->surface_id != 0) {
 124                         client_head->surface_id = 0;
 125                         status = MONITORS_CONFIG_MODIFIED;
 126                 }
 127                 if (client_head->id != i) {
 128                         client_head->id = i;
 129                         status = MONITORS_CONFIG_MODIFIED;
 130                 }
 131                 if (client_head->flags != 0) {
 132                         client_head->flags = 0;
 133                         status = MONITORS_CONFIG_MODIFIED;
 134                 }
 135                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
 136                           client_head->x, client_head->y);
 137         }
 138
 139         return status;
 140 }
 141
 142 static void qxl_update_offset_props(struct qxl_device *qdev)
 143 {
 144         struct drm_device *dev = &qdev->ddev;
 145         struct drm_connector *connector;
 146         struct qxl_output *output;
 147         struct qxl_head *head;
 148
 149         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 150                 output = drm_connector_to_qxl_output(connector);
 151
 152                 head = &qdev->client_monitors_config->heads[output->index];
 153
 154                 drm_object_property_set_value(&connector->base,
 155                         dev->mode_config.suggested_x_property, head->x);
 156                 drm_object_property_set_value(&connector->base,
 157                         dev->mode_config.suggested_y_property, head->y);
 158         }
 159 }
 160
 161 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 162 {
 163         struct drm_device *dev = &qdev->ddev;
 164         int status, retries;
 165
 166         for (retries = 0; retries < 10; retries++) {
 167                 status = qxl_display_copy_rom_client_monitors_config(qdev);
 168                 if (status != MONITORS_CONFIG_BAD_CRC)
 169                         break;
 170                 udelay(5);
 171         }
 172         if (status == MONITORS_CONFIG_BAD_CRC) {
 173                 qxl_io_log(qdev, "config: bad crc\n");
 174                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 175                 return;
 176         }
 177         if (status == MONITORS_CONFIG_UNCHANGED) {
 178                 qxl_io_log(qdev, "config: unchanged\n");
 179                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
 180                 return;
 181         }
 182
 183         drm_modeset_lock_all(dev);
 184         qxl_update_offset_props(qdev);
 185         drm_modeset_unlock_all(dev);
 186         if (!drm_helper_hpd_irq_event(dev)) {
 187                 /* notify that the monitor configuration changed, to
 188                    adjust at the arbitrary resolution */
 189                 drm_kms_helper_hotplug_event(dev);
 190         }
 191 }
 192
 193 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 194                                          unsigned *pwidth,
 195                                          unsigned *pheight)
 196 {
 197         struct drm_device *dev = connector->dev;
 198         struct qxl_device *qdev = dev->dev_private;
 199         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 200         int h = output->index;
 201         struct drm_display_mode *mode = NULL;
 202         struct qxl_head *head;
 203
 204         if (!qdev->monitors_config)
 205                 return 0;
 206         if (h >= qdev->monitors_config->max_allowed)
 207                 return 0;
 208         if (!qdev->client_monitors_config)
 209                 return 0;
 210         if (h >= qdev->client_monitors_config->count)
 211                 return 0;
 212
 213         head = &qdev->client_monitors_config->heads[h];
 214         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
 215
 216         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 217                             false);
 218         mode->type |= DRM_MODE_TYPE_PREFERRED;
 219         mode->hdisplay = head->width;
 220         mode->vdisplay = head->height;
 221         drm_mode_set_name(mode);
 222         *pwidth = head->width;
 223         *pheight = head->height;
 224         drm_mode_probed_add(connector, mode);
 225         /* remember the last custom size for mode validation */
 226         qdev->monitors_config_width = mode->hdisplay;
 227         qdev->monitors_config_height = mode->vdisplay;
 228         return 1;
 229 }
 230
 231 static struct mode_size {
 232         int w;
 233         int h;
 234 } common_modes[] = {
 235         { 640,  480},
 236         { 720,  480},
 237         { 800,  600},
 238         { 848,  480},
 239         {1024,  768},
 240         {1152,  768},
 241         {1280,  720},
 242         {1280,  800},
 243         {1280,  854},
 244         {1280,  960},
 245         {1280, 1024},
 246         {1440,  900},
 247         {1400, 1050},
 248         {1680, 1050},
 249         {1600, 1200},
 250         {1920, 1080},
 251         {1920, 1200}
 252 };
 253
 254 static int qxl_add_common_modes(struct drm_connector *connector,
 255                                 unsigned pwidth,
 256                                 unsigned pheight)
 257 {
 258         struct drm_device *dev = connector->dev;
 259         struct drm_display_mode *mode = NULL;
 260         int i;
 261         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 262                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 263                                     60, false, false, false);
 264                 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 265                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 266                 drm_mode_probed_add(connector, mode);
 267         }
 268         return i - 1;
 269 }
 270
 271 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 272                                   struct drm_crtc_state *old_crtc_state)
 273 {
 274         struct drm_device *dev = crtc->dev;
 275         struct drm_pending_vblank_event *event;
 276         unsigned long flags;
 277
 278         if (crtc->state && crtc->state->event) {
 279                 event = crtc->state->event;
 280                 crtc->state->event = NULL;
 281
 282                 spin_lock_irqsave(&dev->event_lock, flags);
 283                 drm_crtc_send_vblank_event(crtc, event);
 284                 spin_unlock_irqrestore(&dev->event_lock, flags);
 285         }
 286 }
 287
 288 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 289 {
 290         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 291
 292         drm_crtc_cleanup(crtc);
 293         kfree(qxl_crtc);
 294 }
 295
 296 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 297         .set_config = drm_atomic_helper_set_config,
 298         .destroy = qxl_crtc_destroy,
 299         .page_flip = drm_atomic_helper_page_flip,
 300         .reset = drm_atomic_helper_crtc_reset,
 301         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 302         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 303 };
 304
 305 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 306 {
 307         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 308
 309         drm_gem_object_unreference_unlocked(qxl_fb->obj);
 310         drm_framebuffer_cleanup(fb);
 311         kfree(qxl_fb);
 312 }
 313
 314 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 315                                          struct drm_file *file_priv,
 316                                          unsigned flags, unsigned color,
 317                                          struct drm_clip_rect *clips,
 318                                          unsigned num_clips)
 319 {
 320         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 321         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 322         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 323         struct drm_clip_rect norect;
 324         struct qxl_bo *qobj;
 325         int inc = 1;
 326
 327         drm_modeset_lock_all(fb->dev);
 328
 329         qobj = gem_to_qxl_bo(qxl_fb->obj);
 330         /* if we aren't primary surface ignore this */
 331         if (!qobj->is_primary) {
 332                 drm_modeset_unlock_all(fb->dev);
 333                 return 0;
 334         }
 335
 336         if (!num_clips) {
 337                 num_clips = 1;
 338                 clips = &norect;
 339                 norect.x1 = norect.y1 = 0;
 340                 norect.x2 = fb->width;
 341                 norect.y2 = fb->height;
 342         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 343                 num_clips /= 2;
 344                 inc = 2; /* skip source rects */
 345         }
 346
 347         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 348                           clips, num_clips, inc);
 349
 350         drm_modeset_unlock_all(fb->dev);
 351
 352         return 0;
 353 }
 354
 355 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 356         .destroy = qxl_user_framebuffer_destroy,
 357         .dirty = qxl_framebuffer_surface_dirty,
 358 /*      TODO?
 359  *      .create_handle = qxl_user_framebuffer_create_handle, */
 360 };
 361
 362 int
 363 qxl_framebuffer_init(struct drm_device *dev,
 364                      struct qxl_framebuffer *qfb,
 365                      const struct drm_mode_fb_cmd2 *mode_cmd,
 366                      struct drm_gem_object *obj,
 367                      const struct drm_framebuffer_funcs *funcs)
 368 {
 369         int ret;
 370
 371         qfb->obj = obj;
 372         drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
 373         ret = drm_framebuffer_init(dev, &qfb->base, funcs);
 374         if (ret) {
 375                 qfb->obj = NULL;
 376                 return ret;
 377         }
 378         return 0;
 379 }
 380
 381 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 382                                   const struct drm_display_mode *mode,
 383                                   struct drm_display_mode *adjusted_mode)
 384 {
 385         struct drm_device *dev = crtc->dev;
 386         struct qxl_device *qdev = dev->dev_private;
 387
 388         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 389                    __func__,
 390                    mode->hdisplay, mode->vdisplay,
 391                    adjusted_mode->hdisplay,
 392                    adjusted_mode->vdisplay);
 393         return true;
 394 }
 395
 396 static void
 397 qxl_send_monitors_config(struct qxl_device *qdev)
 398 {
 399         int i;
 400
 401         BUG_ON(!qdev->ram_header->monitors_config);
 402
 403         if (qdev->monitors_config->count == 0) {
 404                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 405                 return;
 406         }
 407         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 408                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 409
 410                 if (head->y > 8192 || head->x > 8192 ||
 411                     head->width > 8192 || head->height > 8192) {
 412                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 413                                   i, head->width, head->height,
 414                                   head->x, head->y);
 415                         return;
 416                 }
 417         }
 418         qxl_io_monitors_config(qdev);
 419 }
 420
 421 static void qxl_monitors_config_set(struct qxl_device *qdev,
 422                                     int index,
 423                                     unsigned x, unsigned y,
 424                                     unsigned width, unsigned height,
 425                                     unsigned surf_id)
 426 {
 427         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 428         qdev->monitors_config->heads[index].x = x;
 429         qdev->monitors_config->heads[index].y = y;
 430         qdev->monitors_config->heads[index].width = width;
 431         qdev->monitors_config->heads[index].height = height;
 432         qdev->monitors_config->heads[index].surface_id = surf_id;
 433
 434 }
 435
 436 static void qxl_mode_set_nofb(struct drm_crtc *crtc)
 437 {
 438         struct qxl_device *qdev = crtc->dev->dev_private;
 439         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 440         struct drm_display_mode *mode = &crtc->mode;
 441
 442         DRM_DEBUG("Mode set (%d,%d)\n",
 443                   mode->hdisplay, mode->vdisplay);
 444
 445         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
 446                                 mode->hdisplay, mode->vdisplay, 0);
 447
 448 }
 449
 450 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
 451                                    struct drm_crtc_state *old_state)
 452 {
 453         DRM_DEBUG("\n");
 454 }
 455
 456 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
 457                                     struct drm_crtc_state *old_state)
 458 {
 459         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 460         struct qxl_device *qdev = crtc->dev->dev_private;
 461
 462         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 463
 464         qxl_send_monitors_config(qdev);
 465 }
 466
 467 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 468         .mode_fixup = qxl_crtc_mode_fixup,
 469         .mode_set_nofb = qxl_mode_set_nofb,
 470         .atomic_flush = qxl_crtc_atomic_flush,
 471         .atomic_enable = qxl_crtc_atomic_enable,
 472         .atomic_disable = qxl_crtc_atomic_disable,
 473 };
 474
 475 static int qxl_primary_atomic_check(struct drm_plane *plane,
 476                                     struct drm_plane_state *state)
 477 {
 478         struct qxl_device *qdev = plane->dev->dev_private;
 479         struct qxl_framebuffer *qfb;
 480         struct qxl_bo *bo;
 481
 482         if (!state->crtc || !state->fb)
 483                 return 0;
 484
 485         qfb = to_qxl_framebuffer(state->fb);
 486         bo = gem_to_qxl_bo(qfb->obj);
 487
 488         if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
 489                 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
 490                 return -EINVAL;
 491         }
 492
 493         return 0;
 494 }
 495
 496 static void qxl_primary_atomic_update(struct drm_plane *plane,
 497                                       struct drm_plane_state *old_state)
 498 {
 499         struct qxl_device *qdev = plane->dev->dev_private;
 500         struct qxl_framebuffer *qfb =
 501                 to_qxl_framebuffer(plane->state->fb);
 502         struct qxl_framebuffer *qfb_old;
 503         struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 504         struct qxl_bo *bo_old;
 505         struct drm_clip_rect norect = {
 506             .x1 = 0,
 507             .y1 = 0,
 508             .x2 = qfb->base.width,
 509             .y2 = qfb->base.height
 510         };
 511
 512         if (!old_state->fb) {
 513                 qxl_io_log(qdev,
 514                            "create primary fb: %dx%d,%d,%d\n",
 515                            bo->surf.width, bo->surf.height,
 516                            bo->surf.stride, bo->surf.format);
 517
 518                 qxl_io_create_primary(qdev, 0, bo);
 519                 bo->is_primary = true;
 520                 return;
 521
 522         } else {
 523                 qfb_old = to_qxl_framebuffer(old_state->fb);
 524                 bo_old = gem_to_qxl_bo(qfb_old->obj);
 525                 bo_old->is_primary = false;
 526         }
 527
 528         bo->is_primary = true;
 529         qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
 530 }
 531
 532 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 533                                        struct drm_plane_state *old_state)
 534 {
 535         struct qxl_device *qdev = plane->dev->dev_private;
 536
 537         if (old_state->fb)
 538         {       struct qxl_framebuffer *qfb =
 539                         to_qxl_framebuffer(old_state->fb);
 540                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 541
 542                 qxl_io_destroy_primary(qdev);
 543                 bo->is_primary = false;
 544         }
 545 }
 546
 547 static int qxl_plane_atomic_check(struct drm_plane *plane,
 548                                   struct drm_plane_state *state)
 549 {
 550         return 0;
 551 }
 552
 553 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 554                                      struct drm_plane_state *old_state)
 555 {
 556         struct drm_device *dev = plane->dev;
 557         struct qxl_device *qdev = dev->dev_private;
 558         struct drm_framebuffer *fb = plane->state->fb;
 559         struct qxl_release *release;
 560         struct qxl_cursor_cmd *cmd;
 561         struct qxl_cursor *cursor;
 562         struct drm_gem_object *obj;
 563         struct qxl_bo *cursor_bo, *user_bo = NULL;
 564         int ret;
 565         void *user_ptr;
 566         int size = 64*64*4;
 567
 568         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 569                                          QXL_RELEASE_CURSOR_CMD,
 570                                          &release, NULL);
 571         if (ret)
 572                 return;
 573
 574         if (fb != old_state->fb) {
 575                 obj = to_qxl_framebuffer(fb)->obj;
 576                 user_bo = gem_to_qxl_bo(obj);
 577
 578                 /* pinning is done in the prepare/cleanup framevbuffer */
 579                 ret = qxl_bo_kmap(user_bo, &user_ptr);
 580                 if (ret)
 581                         goto out_free_release;
 582
 583                 ret = qxl_alloc_bo_reserved(qdev, release,
 584                                             sizeof(struct qxl_cursor) + size,
 585                                             &cursor_bo);
 586                 if (ret)
 587                         goto out_kunmap;
 588
 589                 ret = qxl_release_reserve_list(release, true);
 590                 if (ret)
 591                         goto out_free_bo;
 592
 593                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 594                 if (ret)
 595                         goto out_backoff;
 596
 597                 cursor->header.unique = 0;
 598                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 599                 cursor->header.width = 64;
 600                 cursor->header.height = 64;
 601                 cursor->header.hot_spot_x = fb->hot_x;
 602                 cursor->header.hot_spot_y = fb->hot_y;
 603                 cursor->data_size = size;
 604                 cursor->chunk.next_chunk = 0;
 605                 cursor->chunk.prev_chunk = 0;
 606                 cursor->chunk.data_size = size;
 607                 memcpy(cursor->chunk.data, user_ptr, size);
 608                 qxl_bo_kunmap(cursor_bo);
 609                 qxl_bo_kunmap(user_bo);
 610
 611                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 612                 cmd->u.set.visible = 1;
 613                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
 614                                                            cursor_bo, 0);
 615                 cmd->type = QXL_CURSOR_SET;
 616         } else {
 617
 618                 ret = qxl_release_reserve_list(release, true);
 619                 if (ret)
 620                         goto out_free_release;
 621
 622                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 623                 cmd->type = QXL_CURSOR_MOVE;
 624         }
 625
 626         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
 627         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
 628
 629         qxl_release_unmap(qdev, release, &cmd->release_info);
 630         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 631         qxl_release_fence_buffer_objects(release);
 632
 633         return;
 634
 635 out_backoff:
 636         qxl_release_backoff_reserve_list(release);
 637 out_free_bo:
 638         qxl_bo_unref(&cursor_bo);
 639 out_kunmap:
 640         qxl_bo_kunmap(user_bo);
 641 out_free_release:
 642         qxl_release_free(qdev, release);
 643         return;
 644
 645 }
 646
 647 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
 648                                       struct drm_plane_state *old_state)
 649 {
 650         struct qxl_device *qdev = plane->dev->dev_private;
 651         struct qxl_release *release;
 652         struct qxl_cursor_cmd *cmd;
 653         int ret;
 654
 655         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 656                                          QXL_RELEASE_CURSOR_CMD,
 657                                          &release, NULL);
 658         if (ret)
 659                 return;
 660
 661         ret = qxl_release_reserve_list(release, true);
 662         if (ret) {
 663                 qxl_release_free(qdev, release);
 664                 return;
 665         }
 666
 667         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 668         cmd->type = QXL_CURSOR_HIDE;
 669         qxl_release_unmap(qdev, release, &cmd->release_info);
 670
 671         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 672         qxl_release_fence_buffer_objects(release);
 673 }
 674
 675 static int qxl_plane_prepare_fb(struct drm_plane *plane,
 676                                 struct drm_plane_state *new_state)
 677 {
 678         struct drm_gem_object *obj;
 679         struct qxl_bo *user_bo;
 680         int ret;
 681
 682         if (!new_state->fb)
 683                 return 0;
 684
 685         obj = to_qxl_framebuffer(new_state->fb)->obj;
 686         user_bo = gem_to_qxl_bo(obj);
 687
 688         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 689         if (ret)
 690                 return ret;
 691
 692         return 0;
 693 }
 694
 695 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 696                                  struct drm_plane_state *old_state)
 697 {
 698         struct drm_gem_object *obj;
 699         struct qxl_bo *user_bo;
 700
 701         if (!plane->state->fb) {
 702                 /* we never executed prepare_fb, so there's nothing to
 703                  * unpin.
 704                  */
 705                 return;
 706         }
 707
 708         obj = to_qxl_framebuffer(plane->state->fb)->obj;
 709         user_bo = gem_to_qxl_bo(obj);
 710         qxl_bo_unpin(user_bo);
 711 }
 712
 713 static const uint32_t qxl_cursor_plane_formats[] = {
 714         DRM_FORMAT_ARGB8888,
 715 };
 716
 717 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 718         .atomic_check = qxl_plane_atomic_check,
 719         .atomic_update = qxl_cursor_atomic_update,
 720         .atomic_disable = qxl_cursor_atomic_disable,
 721         .prepare_fb = qxl_plane_prepare_fb,
 722         .cleanup_fb = qxl_plane_cleanup_fb,
 723 };
 724
 725 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 726         .update_plane   = drm_atomic_helper_update_plane,
 727         .disable_plane  = drm_atomic_helper_disable_plane,
 728         .destroy        = drm_primary_helper_destroy,
 729         .reset          = drm_atomic_helper_plane_reset,
 730         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 731         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 732 };
 733
 734 static const uint32_t qxl_primary_plane_formats[] = {
 735         DRM_FORMAT_XRGB8888,
 736         DRM_FORMAT_ARGB8888,
 737 };
 738
 739 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 740         .atomic_check = qxl_primary_atomic_check,
 741         .atomic_update = qxl_primary_atomic_update,
 742         .atomic_disable = qxl_primary_atomic_disable,
 743         .prepare_fb = qxl_plane_prepare_fb,
 744         .cleanup_fb = qxl_plane_cleanup_fb,
 745 };
 746
 747 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 748         .update_plane   = drm_atomic_helper_update_plane,
 749         .disable_plane  = drm_atomic_helper_disable_plane,
 750         .destroy        = drm_primary_helper_destroy,
 751         .reset          = drm_atomic_helper_plane_reset,
 752         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 753         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 754 };
 755
 756 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 757                                           unsigned int possible_crtcs,
 758                                           enum drm_plane_type type)
 759 {
 760         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 761         struct drm_plane *plane;
 762         const struct drm_plane_funcs *funcs;
 763         const uint32_t *formats;
 764         int num_formats;
 765         int err;
 766
 767         if (type == DRM_PLANE_TYPE_PRIMARY) {
 768                 funcs = &qxl_primary_plane_funcs;
 769                 formats = qxl_primary_plane_formats;
 770                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 771                 helper_funcs = &primary_helper_funcs;
 772         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 773                 funcs = &qxl_cursor_plane_funcs;
 774                 formats = qxl_cursor_plane_formats;
 775                 helper_funcs = &qxl_cursor_helper_funcs;
 776                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 777         } else {
 778                 return ERR_PTR(-EINVAL);
 779         }
 780
 781         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 782         if (!plane)
 783                 return ERR_PTR(-ENOMEM);
 784
 785         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 786                                        funcs, formats, num_formats,
 787                                        NULL, type, NULL);
 788         if (err)
 789                 goto free_plane;
 790
 791         drm_plane_helper_add(plane, helper_funcs);
 792
 793         return plane;
 794
 795 free_plane:
 796         kfree(plane);
 797         return ERR_PTR(-EINVAL);
 798 }
 799
 800 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 801 {
 802         struct qxl_crtc *qxl_crtc;
 803         struct drm_plane *primary, *cursor;
 804         struct qxl_device *qdev = dev->dev_private;
 805         int r;
 806
 807         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 808         if (!qxl_crtc)
 809                 return -ENOMEM;
 810
 811         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 812         if (IS_ERR(primary)) {
 813                 r = -ENOMEM;
 814                 goto free_mem;
 815         }
 816
 817         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 818         if (IS_ERR(cursor)) {
 819                 r = -ENOMEM;
 820                 goto clean_primary;
 821         }
 822
 823         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 824                                       &qxl_crtc_funcs, NULL);
 825         if (r)
 826                 goto clean_cursor;
 827
 828         qxl_crtc->index = crtc_id;
 829         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 830         return 0;
 831
 832 clean_cursor:
 833         drm_plane_cleanup(cursor);
 834         kfree(cursor);
 835 clean_primary:
 836         drm_plane_cleanup(primary);
 837         kfree(primary);
 838 free_mem:
 839         kfree(qxl_crtc);
 840         return r;
 841 }
 842
 843 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 844 {
 845         DRM_DEBUG("\n");
 846 }
 847
 848 static void qxl_enc_prepare(struct drm_encoder *encoder)
 849 {
 850         DRM_DEBUG("\n");
 851 }
 852
 853 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 854                 struct drm_encoder *encoder)
 855 {
 856         int i;
 857         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 858         struct qxl_head *head;
 859         struct drm_display_mode *mode;
 860
 861         BUG_ON(!encoder);
 862         /* TODO: ugly, do better */
 863         i = output->index;
 864         if (!qdev->monitors_config ||
 865             qdev->monitors_config->max_allowed <= i) {
 866                 DRM_ERROR(
 867                 "head number too large or missing monitors config: %p, %d",
 868                 qdev->monitors_config,
 869                 qdev->monitors_config ?
 870                         qdev->monitors_config->max_allowed : -1);
 871                 return;
 872         }
 873         if (!encoder->crtc) {
 874                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 875                 return;
 876         }
 877         if (i != 0)
 878                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 879         head = &qdev->monitors_config->heads[i];
 880         head->id = i;
 881         if (encoder->crtc->enabled) {
 882                 mode = &encoder->crtc->mode;
 883                 head->width = mode->hdisplay;
 884                 head->height = mode->vdisplay;
 885                 head->x = encoder->crtc->x;
 886                 head->y = encoder->crtc->y;
 887                 if (qdev->monitors_config->count < i + 1)
 888                         qdev->monitors_config->count = i + 1;
 889         } else {
 890                 head->width = 0;
 891                 head->height = 0;
 892                 head->x = 0;
 893                 head->y = 0;
 894         }
 895         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 896                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 897         head->flags = 0;
 898         /* TODO - somewhere else to call this for multiple monitors
 899          * (config_commit?) */
 900         qxl_send_monitors_config(qdev);
 901 }
 902
 903 static void qxl_enc_commit(struct drm_encoder *encoder)
 904 {
 905         struct qxl_device *qdev = encoder->dev->dev_private;
 906
 907         qxl_write_monitors_config_for_encoder(qdev, encoder);
 908         DRM_DEBUG("\n");
 909 }
 910
 911 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 912                                 struct drm_display_mode *mode,
 913                                 struct drm_display_mode *adjusted_mode)
 914 {
 915         DRM_DEBUG("\n");
 916 }
 917
 918 static int qxl_conn_get_modes(struct drm_connector *connector)
 919 {
 920         unsigned pwidth = 1024;
 921         unsigned pheight = 768;
 922         int ret = 0;
 923
 924         ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 925         if (ret < 0)
 926                 return ret;
 927         ret += qxl_add_common_modes(connector, pwidth, pheight);
 928         return ret;
 929 }
 930
 931 static int qxl_conn_mode_valid(struct drm_connector *connector,
 932                                struct drm_display_mode *mode)
 933 {
 934         struct drm_device *ddev = connector->dev;
 935         struct qxl_device *qdev = ddev->dev_private;
 936         int i;
 937
 938         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 939          * TODO: check that the mode fits in the framebuffer */
 940
 941         if(qdev->monitors_config_width == mode->hdisplay &&
 942            qdev->monitors_config_height == mode->vdisplay)
 943                 return MODE_OK;
 944
 945         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 946                 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
 947                         return MODE_OK;
 948         }
 949         return MODE_BAD;
 950 }
 951
 952 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 953 {
 954         struct qxl_output *qxl_output =
 955                 drm_connector_to_qxl_output(connector);
 956
 957         DRM_DEBUG("\n");
 958         return &qxl_output->enc;
 959 }
 960
 961
 962 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 963         .dpms = qxl_enc_dpms,
 964         .prepare = qxl_enc_prepare,
 965         .mode_set = qxl_enc_mode_set,
 966         .commit = qxl_enc_commit,
 967 };
 968
 969 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 970         .get_modes = qxl_conn_get_modes,
 971         .mode_valid = qxl_conn_mode_valid,
 972         .best_encoder = qxl_best_encoder,
 973 };
 974
 975 static enum drm_connector_status qxl_conn_detect(
 976                         struct drm_connector *connector,
 977                         bool force)
 978 {
 979         struct qxl_output *output =
 980                 drm_connector_to_qxl_output(connector);
 981         struct drm_device *ddev = connector->dev;
 982         struct qxl_device *qdev = ddev->dev_private;
 983         bool connected = false;
 984
 985         /* The first monitor is always connected */
 986         if (!qdev->client_monitors_config) {
 987                 if (output->index == 0)
 988                         connected = true;
 989         } else
 990                 connected = qdev->client_monitors_config->count > output->index &&
 991                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
 992
 993         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 994         if (!connected)
 995                 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 996
 997         return connected ? connector_status_connected
 998                          : connector_status_disconnected;
 999 }
1000
1001 static int qxl_conn_set_property(struct drm_connector *connector,
1002                                    struct drm_property *property,
1003                                    uint64_t value)
1004 {
1005         DRM_DEBUG("\n");
1006         return 0;
1007 }
1008
1009 static void qxl_conn_destroy(struct drm_connector *connector)
1010 {
1011         struct qxl_output *qxl_output =
1012                 drm_connector_to_qxl_output(connector);
1013
1014         drm_connector_unregister(connector);
1015         drm_connector_cleanup(connector);
1016         kfree(qxl_output);
1017 }
1018
1019 static const struct drm_connector_funcs qxl_connector_funcs = {
1020         .dpms = drm_helper_connector_dpms,
1021         .detect = qxl_conn_detect,
1022         .fill_modes = drm_helper_probe_single_connector_modes,
1023         .set_property = qxl_conn_set_property,
1024         .destroy = qxl_conn_destroy,
1025         .reset = drm_atomic_helper_connector_reset,
1026         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1027         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1028 };
1029
1030 static void qxl_enc_destroy(struct drm_encoder *encoder)
1031 {
1032         drm_encoder_cleanup(encoder);
1033 }
1034
1035 static const struct drm_encoder_funcs qxl_enc_funcs = {
1036         .destroy = qxl_enc_destroy,
1037 };
1038
1039 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1040 {
1041         if (qdev->hotplug_mode_update_property)
1042                 return 0;
1043
1044         qdev->hotplug_mode_update_property =
1045                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1046                                           "hotplug_mode_update", 0, 1);
1047
1048         return 0;
1049 }
1050
1051 static int qdev_output_init(struct drm_device *dev, int num_output)
1052 {
1053         struct qxl_device *qdev = dev->dev_private;
1054         struct qxl_output *qxl_output;
1055         struct drm_connector *connector;
1056         struct drm_encoder *encoder;
1057
1058         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1059         if (!qxl_output)
1060                 return -ENOMEM;
1061
1062         qxl_output->index = num_output;
1063
1064         connector = &qxl_output->base;
1065         encoder = &qxl_output->enc;
1066         drm_connector_init(dev, &qxl_output->base,
1067                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1068
1069         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1070                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1071
1072         /* we get HPD via client monitors config */
1073         connector->polled = DRM_CONNECTOR_POLL_HPD;
1074         encoder->possible_crtcs = 1 << num_output;
1075         drm_mode_connector_attach_encoder(&qxl_output->base,
1076                                           &qxl_output->enc);
1077         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1078         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1079
1080         drm_object_attach_property(&connector->base,
1081                                    qdev->hotplug_mode_update_property, 0);
1082         drm_object_attach_property(&connector->base,
1083                                    dev->mode_config.suggested_x_property, 0);
1084         drm_object_attach_property(&connector->base,
1085                                    dev->mode_config.suggested_y_property, 0);
1086         return 0;
1087 }
1088
1089 static struct drm_framebuffer *
1090 qxl_user_framebuffer_create(struct drm_device *dev,
1091                             struct drm_file *file_priv,
1092                             const struct drm_mode_fb_cmd2 *mode_cmd)
1093 {
1094         struct drm_gem_object *obj;
1095         struct qxl_framebuffer *qxl_fb;
1096         int ret;
1097
1098         obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1099         if (!obj)
1100                 return NULL;
1101
1102         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1103         if (qxl_fb == NULL)
1104                 return NULL;
1105
1106         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1107         if (ret) {
1108                 kfree(qxl_fb);
1109                 drm_gem_object_unreference_unlocked(obj);
1110                 return NULL;
1111         }
1112
1113         return &qxl_fb->base;
1114 }
1115
1116 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1117         .fb_create = qxl_user_framebuffer_create,
1118         .atomic_check = drm_atomic_helper_check,
1119         .atomic_commit = drm_atomic_helper_commit,
1120 };
1121
1122 int qxl_create_monitors_object(struct qxl_device *qdev)
1123 {
1124         int ret;
1125         struct drm_gem_object *gobj;
1126         int max_allowed = qxl_num_crtc;
1127         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1128                 max_allowed * sizeof(struct qxl_head);
1129
1130         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1131                                     QXL_GEM_DOMAIN_VRAM,
1132                                     false, false, NULL, &gobj);
1133         if (ret) {
1134                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1135                 return -ENOMEM;
1136         }
1137         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1138
1139         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1140         if (ret)
1141                 return ret;
1142
1143         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1144
1145         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1146         qdev->ram_header->monitors_config =
1147                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1148
1149         memset(qdev->monitors_config, 0, monitors_config_size);
1150         qdev->monitors_config->max_allowed = max_allowed;
1151         return 0;
1152 }
1153
1154 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1155 {
1156         int ret;
1157
1158         qdev->monitors_config = NULL;
1159         qdev->ram_header->monitors_config = 0;
1160
1161         qxl_bo_kunmap(qdev->monitors_config_bo);
1162         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1163         if (ret)
1164                 return ret;
1165
1166         qxl_bo_unref(&qdev->monitors_config_bo);
1167         return 0;
1168 }
1169
1170 int qxl_modeset_init(struct qxl_device *qdev)
1171 {
1172         int i;
1173         int ret;
1174
1175         drm_mode_config_init(&qdev->ddev);
1176
1177         ret = qxl_create_monitors_object(qdev);
1178         if (ret)
1179                 return ret;
1180
1181         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1182
1183         /* modes will be validated against the framebuffer size */
1184         qdev->ddev.mode_config.min_width = 0;
1185         qdev->ddev.mode_config.min_height = 0;
1186         qdev->ddev.mode_config.max_width = 8192;
1187         qdev->ddev.mode_config.max_height = 8192;
1188
1189         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1190
1191         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1192         qxl_mode_create_hotplug_mode_update_property(qdev);
1193
1194         for (i = 0 ; i < qxl_num_crtc; ++i) {
1195                 qdev_crtc_init(&qdev->ddev, i);
1196                 qdev_output_init(&qdev->ddev, i);
1197         }
1198
1199         qxl_display_read_client_monitors_config(qdev);
1200         qdev->mode_info.mode_config_initialized = true;
1201
1202         drm_mode_config_reset(&qdev->ddev);
1203
1204         /* primary surface must be created by this point, to allow
1205          * issuing command queue commands and having them read by
1206          * spice server. */
1207         qxl_fbdev_init(qdev);
1208         return 0;
1209 }
1210
1211 void qxl_modeset_fini(struct qxl_device *qdev)
1212 {
1213         qxl_fbdev_fini(qdev);
1214
1215         qxl_destroy_monitors_object(qdev);
1216         if (qdev->mode_info.mode_config_initialized) {
1217                 drm_mode_config_cleanup(&qdev->ddev);
1218                 qdev->mode_info.mode_config_initialized = false;
1219         }
1220 }