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
  33 static bool qxl_head_enabled(struct qxl_head *head)
  34 {
  35         return head->width && head->height;
  36 }
  37
  38 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
  39 {
  40         if (qdev->client_monitors_config &&
  41             count > qdev->client_monitors_config->count) {
  42                 kfree(qdev->client_monitors_config);
  43                 qdev->client_monitors_config = NULL;
  44         }
  45         if (!qdev->client_monitors_config) {
  46                 qdev->client_monitors_config = kzalloc(
  47                                 sizeof(struct qxl_monitors_config) +
  48                                 sizeof(struct qxl_head) * count, GFP_KERNEL);
  49                 if (!qdev->client_monitors_config) {
  50                         qxl_io_log(qdev,
  51                                    "%s: allocation failure for %u heads\n",
  52                                    __func__, count);
  53                         return;
  54                 }
  55         }
  56         qdev->client_monitors_config->count = count;
  57 }
  58
  59 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  60 {
  61         int i;
  62         int num_monitors;
  63         uint32_t crc;
  64
  65         num_monitors = qdev->rom->client_monitors_config.count;
  66         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  67                   sizeof(qdev->rom->client_monitors_config));
  68         if (crc != qdev->rom->client_monitors_config_crc) {
  69                 qxl_io_log(qdev, "crc mismatch: have %X (%d) != %X\n", crc,
  70                            sizeof(qdev->rom->client_monitors_config),
  71                            qdev->rom->client_monitors_config_crc);
  72                 return 1;
  73         }
  74         if (num_monitors > qdev->monitors_config->max_allowed) {
  75                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  76                               qdev->monitors_config->max_allowed, num_monitors);
  77                 num_monitors = qdev->monitors_config->max_allowed;
  78         } else {
  79                 num_monitors = qdev->rom->client_monitors_config.count;
  80         }
  81         qxl_alloc_client_monitors_config(qdev, num_monitors);
  82         /* we copy max from the client but it isn't used */
  83         qdev->client_monitors_config->max_allowed =
  84                                 qdev->monitors_config->max_allowed;
  85         for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
  86                 struct qxl_urect *c_rect =
  87                         &qdev->rom->client_monitors_config.heads[i];
  88                 struct qxl_head *client_head =
  89                         &qdev->client_monitors_config->heads[i];
  90                 client_head->x = c_rect->left;
  91                 client_head->y = c_rect->top;
  92                 client_head->width = c_rect->right - c_rect->left;
  93                 client_head->height = c_rect->bottom - c_rect->top;
  94                 client_head->surface_id = 0;
  95                 client_head->id = i;
  96                 client_head->flags = 0;
  97                 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
  98                           client_head->x, client_head->y);
  99         }
 100         return 0;
 101 }
 102
 103 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
 104 {
 105
 106         while (qxl_display_copy_rom_client_monitors_config(qdev)) {
 107                 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
 108                                  " retrying\n");
 109         }
 110         drm_sysfs_hotplug_event(qdev->ddev);
 111 }
 112
 113 static int qxl_add_monitors_config_modes(struct drm_connector *connector)
 114 {
 115         struct drm_device *dev = connector->dev;
 116         struct qxl_device *qdev = dev->dev_private;
 117         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 118         int h = output->index;
 119         struct drm_display_mode *mode = NULL;
 120         struct qxl_head *head;
 121
 122         if (!qdev->client_monitors_config)
 123                 return 0;
 124         head = &qdev->client_monitors_config->heads[h];
 125
 126         mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 127                             false);
 128         mode->type |= DRM_MODE_TYPE_PREFERRED;
 129         drm_mode_probed_add(connector, mode);
 130         return 1;
 131 }
 132
 133 static int qxl_add_common_modes(struct drm_connector *connector)
 134 {
 135         struct drm_device *dev = connector->dev;
 136         struct drm_display_mode *mode = NULL;
 137         int i;
 138         struct mode_size {
 139                 int w;
 140                 int h;
 141         } common_modes[] = {
 142                 { 640,  480},
 143                 { 720,  480},
 144                 { 800,  600},
 145                 { 848,  480},
 146                 {1024,  768},
 147                 {1152,  768},
 148                 {1280,  720},
 149                 {1280,  800},
 150                 {1280,  854},
 151                 {1280,  960},
 152                 {1280, 1024},
 153                 {1440,  900},
 154                 {1400, 1050},
 155                 {1680, 1050},
 156                 {1600, 1200},
 157                 {1920, 1080},
 158                 {1920, 1200}
 159         };
 160
 161         for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 162                 if (common_modes[i].w < 320 || common_modes[i].h < 200)
 163                         continue;
 164
 165                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 166                                     60, false, false, false);
 167                 if (common_modes[i].w == 1024 && common_modes[i].h == 768)
 168                         mode->type |= DRM_MODE_TYPE_PREFERRED;
 169                 drm_mode_probed_add(connector, mode);
 170         }
 171         return i - 1;
 172 }
 173
 174 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 175 {
 176         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 177
 178         drm_crtc_cleanup(crtc);
 179         kfree(qxl_crtc);
 180 }
 181
 182 static void
 183 qxl_hide_cursor(struct qxl_device *qdev)
 184 {
 185         struct qxl_release *release;
 186         struct qxl_cursor_cmd *cmd;
 187         int ret;
 188
 189         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 190                                          &release, NULL);
 191
 192         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 193         cmd->type = QXL_CURSOR_HIDE;
 194         qxl_release_unmap(qdev, release, &cmd->release_info);
 195
 196         qxl_fence_releaseable(qdev, release);
 197         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 198         qxl_release_unreserve(qdev, release);
 199 }
 200
 201 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 202                                 struct drm_file *file_priv,
 203                                 uint32_t handle,
 204                                 uint32_t width,
 205                                 uint32_t height, int32_t hot_x, int32_t hot_y)
 206 {
 207         struct drm_device *dev = crtc->dev;
 208         struct qxl_device *qdev = dev->dev_private;
 209         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 210         struct drm_gem_object *obj;
 211         struct qxl_cursor *cursor;
 212         struct qxl_cursor_cmd *cmd;
 213         struct qxl_bo *cursor_bo, *user_bo;
 214         struct qxl_release *release;
 215         void *user_ptr;
 216
 217         int size = 64*64*4;
 218         int ret = 0;
 219         if (!handle) {
 220                 qxl_hide_cursor(qdev);
 221                 return 0;
 222         }
 223
 224         obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
 225         if (!obj) {
 226                 DRM_ERROR("cannot find cursor object\n");
 227                 return -ENOENT;
 228         }
 229
 230         user_bo = gem_to_qxl_bo(obj);
 231
 232         ret = qxl_bo_reserve(user_bo, false);
 233         if (ret)
 234                 goto out_unref;
 235
 236         ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 237         if (ret)
 238                 goto out_unreserve;
 239
 240         ret = qxl_bo_kmap(user_bo, &user_ptr);
 241         if (ret)
 242                 goto out_unpin;
 243
 244         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 245                                          QXL_RELEASE_CURSOR_CMD,
 246                                          &release, NULL);
 247         if (ret)
 248                 goto out_kunmap;
 249         ret = qxl_alloc_bo_reserved(qdev, sizeof(struct qxl_cursor) + size,
 250                                     &cursor_bo);
 251         if (ret)
 252                 goto out_free_release;
 253         ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 254         if (ret)
 255                 goto out_free_bo;
 256
 257         cursor->header.unique = 0;
 258         cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 259         cursor->header.width = 64;
 260         cursor->header.height = 64;
 261         cursor->header.hot_spot_x = hot_x;
 262         cursor->header.hot_spot_y = hot_y;
 263         cursor->data_size = size;
 264         cursor->chunk.next_chunk = 0;
 265         cursor->chunk.prev_chunk = 0;
 266         cursor->chunk.data_size = size;
 267
 268         memcpy(cursor->chunk.data, user_ptr, size);
 269
 270         qxl_bo_kunmap(cursor_bo);
 271
 272         /* finish with the userspace bo */
 273         qxl_bo_kunmap(user_bo);
 274         qxl_bo_unpin(user_bo);
 275         qxl_bo_unreserve(user_bo);
 276         drm_gem_object_unreference_unlocked(obj);
 277
 278         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 279         cmd->type = QXL_CURSOR_SET;
 280         cmd->u.set.position.x = qcrtc->cur_x;
 281         cmd->u.set.position.y = qcrtc->cur_y;
 282
 283         cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 284         qxl_release_add_res(qdev, release, cursor_bo);
 285
 286         cmd->u.set.visible = 1;
 287         qxl_release_unmap(qdev, release, &cmd->release_info);
 288
 289         qxl_fence_releaseable(qdev, release);
 290         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 291         qxl_release_unreserve(qdev, release);
 292
 293         qxl_bo_unreserve(cursor_bo);
 294         qxl_bo_unref(&cursor_bo);
 295
 296         return ret;
 297 out_free_bo:
 298         qxl_bo_unref(&cursor_bo);
 299 out_free_release:
 300         qxl_release_unreserve(qdev, release);
 301         qxl_release_free(qdev, release);
 302 out_kunmap:
 303         qxl_bo_kunmap(user_bo);
 304 out_unpin:
 305         qxl_bo_unpin(user_bo);
 306 out_unreserve:
 307         qxl_bo_unreserve(user_bo);
 308 out_unref:
 309         drm_gem_object_unreference_unlocked(obj);
 310         return ret;
 311 }
 312
 313 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 314                                 int x, int y)
 315 {
 316         struct drm_device *dev = crtc->dev;
 317         struct qxl_device *qdev = dev->dev_private;
 318         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 319         struct qxl_release *release;
 320         struct qxl_cursor_cmd *cmd;
 321         int ret;
 322
 323         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 324                                    &release, NULL);
 325
 326         qcrtc->cur_x = x;
 327         qcrtc->cur_y = y;
 328
 329         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 330         cmd->type = QXL_CURSOR_MOVE;
 331         cmd->u.position.x = qcrtc->cur_x;
 332         cmd->u.position.y = qcrtc->cur_y;
 333         qxl_release_unmap(qdev, release, &cmd->release_info);
 334
 335         qxl_fence_releaseable(qdev, release);
 336         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 337         qxl_release_unreserve(qdev, release);
 338         return 0;
 339 }
 340
 341
 342 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 343         .cursor_set2 = qxl_crtc_cursor_set2,
 344         .cursor_move = qxl_crtc_cursor_move,
 345         .set_config = drm_crtc_helper_set_config,
 346         .destroy = qxl_crtc_destroy,
 347 };
 348
 349 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 350 {
 351         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 352
 353         if (qxl_fb->obj)
 354                 drm_gem_object_unreference_unlocked(qxl_fb->obj);
 355         drm_framebuffer_cleanup(fb);
 356         kfree(qxl_fb);
 357 }
 358
 359 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 360                                          struct drm_file *file_priv,
 361                                          unsigned flags, unsigned color,
 362                                          struct drm_clip_rect *clips,
 363                                          unsigned num_clips)
 364 {
 365         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 366         struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 367         struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 368         struct drm_clip_rect norect;
 369         struct qxl_bo *qobj;
 370         int inc = 1;
 371
 372         qobj = gem_to_qxl_bo(qxl_fb->obj);
 373         /* if we aren't primary surface ignore this */
 374         if (!qobj->is_primary)
 375                 return 0;
 376
 377         if (!num_clips) {
 378                 num_clips = 1;
 379                 clips = &norect;
 380                 norect.x1 = norect.y1 = 0;
 381                 norect.x2 = fb->width;
 382                 norect.y2 = fb->height;
 383         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 384                 num_clips /= 2;
 385                 inc = 2; /* skip source rects */
 386         }
 387
 388         qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 389                           clips, num_clips, inc);
 390         return 0;
 391 }
 392
 393 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 394         .destroy = qxl_user_framebuffer_destroy,
 395         .dirty = qxl_framebuffer_surface_dirty,
 396 /*      TODO?
 397  *      .create_handle = qxl_user_framebuffer_create_handle, */
 398 };
 399
 400 int
 401 qxl_framebuffer_init(struct drm_device *dev,
 402                      struct qxl_framebuffer *qfb,
 403                      struct drm_mode_fb_cmd2 *mode_cmd,
 404                      struct drm_gem_object *obj)
 405 {
 406         int ret;
 407
 408         qfb->obj = obj;
 409         ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
 410         if (ret) {
 411                 qfb->obj = NULL;
 412                 return ret;
 413         }
 414         drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 415         return 0;
 416 }
 417
 418 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 419 {
 420 }
 421
 422 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 423                                   const struct drm_display_mode *mode,
 424                                   struct drm_display_mode *adjusted_mode)
 425 {
 426         struct drm_device *dev = crtc->dev;
 427         struct qxl_device *qdev = dev->dev_private;
 428
 429         qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 430                    __func__,
 431                    mode->hdisplay, mode->vdisplay,
 432                    adjusted_mode->hdisplay,
 433                    adjusted_mode->vdisplay);
 434         return true;
 435 }
 436
 437 void
 438 qxl_send_monitors_config(struct qxl_device *qdev)
 439 {
 440         int i;
 441
 442         BUG_ON(!qdev->ram_header->monitors_config);
 443
 444         if (qdev->monitors_config->count == 0) {
 445                 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 446                 return;
 447         }
 448         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 449                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 450
 451                 if (head->y > 8192 || head->x > 8192 ||
 452                     head->width > 8192 || head->height > 8192) {
 453                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 454                                   i, head->width, head->height,
 455                                   head->x, head->y);
 456                         return;
 457                 }
 458         }
 459         qxl_io_monitors_config(qdev);
 460 }
 461
 462 static void qxl_monitors_config_set(struct qxl_device *qdev,
 463                                     int index,
 464                                     unsigned x, unsigned y,
 465                                     unsigned width, unsigned height,
 466                                     unsigned surf_id)
 467 {
 468         DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 469         qdev->monitors_config->heads[index].x = x;
 470         qdev->monitors_config->heads[index].y = y;
 471         qdev->monitors_config->heads[index].width = width;
 472         qdev->monitors_config->heads[index].height = height;
 473         qdev->monitors_config->heads[index].surface_id = surf_id;
 474
 475 }
 476
 477 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 478                                struct drm_display_mode *mode,
 479                                struct drm_display_mode *adjusted_mode,
 480                                int x, int y,
 481                                struct drm_framebuffer *old_fb)
 482 {
 483         struct drm_device *dev = crtc->dev;
 484         struct qxl_device *qdev = dev->dev_private;
 485         struct qxl_mode *m = (void *)mode->private;
 486         struct qxl_framebuffer *qfb;
 487         struct qxl_bo *bo, *old_bo = NULL;
 488         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 489         uint32_t width, height, base_offset;
 490         bool recreate_primary = false;
 491         int ret;
 492         int surf_id;
 493         if (!crtc->fb) {
 494                 DRM_DEBUG_KMS("No FB bound\n");
 495                 return 0;
 496         }
 497
 498         if (old_fb) {
 499                 qfb = to_qxl_framebuffer(old_fb);
 500                 old_bo = gem_to_qxl_bo(qfb->obj);
 501         }
 502         qfb = to_qxl_framebuffer(crtc->fb);
 503         bo = gem_to_qxl_bo(qfb->obj);
 504         if (!m)
 505                 /* and do we care? */
 506                 DRM_DEBUG("%dx%d: not a native mode\n", x, y);
 507         else
 508                 DRM_DEBUG("%dx%d: qxl id %d\n",
 509                           mode->hdisplay, mode->vdisplay, m->id);
 510         DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 511                   x, y,
 512                   mode->hdisplay, mode->vdisplay,
 513                   adjusted_mode->hdisplay,
 514                   adjusted_mode->vdisplay);
 515
 516         if (qcrtc->index == 0)
 517                 recreate_primary = true;
 518
 519         width = mode->hdisplay;
 520         height = mode->vdisplay;
 521         base_offset = 0;
 522
 523         ret = qxl_bo_reserve(bo, false);
 524         if (ret != 0)
 525                 return ret;
 526         ret = qxl_bo_pin(bo, bo->type, NULL);
 527         if (ret != 0) {
 528                 qxl_bo_unreserve(bo);
 529                 return -EINVAL;
 530         }
 531         qxl_bo_unreserve(bo);
 532         if (recreate_primary) {
 533                 qxl_io_destroy_primary(qdev);
 534                 qxl_io_log(qdev,
 535                            "recreate primary: %dx%d (was %dx%d,%d,%d)\n",
 536                            width, height, bo->surf.width,
 537                            bo->surf.height, bo->surf.stride, bo->surf.format);
 538                 qxl_io_create_primary(qdev, base_offset, bo);
 539                 bo->is_primary = true;
 540                 surf_id = 0;
 541         } else {
 542                 surf_id = bo->surface_id;
 543         }
 544
 545         if (old_bo && old_bo != bo) {
 546                 old_bo->is_primary = false;
 547                 ret = qxl_bo_reserve(old_bo, false);
 548                 qxl_bo_unpin(old_bo);
 549                 qxl_bo_unreserve(old_bo);
 550         }
 551
 552         qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 553                                 mode->hdisplay,
 554                                 mode->vdisplay, surf_id);
 555         return 0;
 556 }
 557
 558 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 559 {
 560         DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 561                   crtc->mode.hdisplay, crtc->mode.vdisplay,
 562                   crtc->x, crtc->y, crtc->enabled);
 563 }
 564
 565 static void qxl_crtc_commit(struct drm_crtc *crtc)
 566 {
 567         DRM_DEBUG("\n");
 568 }
 569
 570 static void qxl_crtc_disable(struct drm_crtc *crtc)
 571 {
 572         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 573         struct drm_device *dev = crtc->dev;
 574         struct qxl_device *qdev = dev->dev_private;
 575         if (crtc->fb) {
 576                 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->fb);
 577                 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 578                 int ret;
 579                 ret = qxl_bo_reserve(bo, false);
 580                 qxl_bo_unpin(bo);
 581                 qxl_bo_unreserve(bo);
 582                 crtc->fb = NULL;
 583         }
 584
 585         qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 586
 587         qxl_send_monitors_config(qdev);
 588 }
 589
 590 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 591         .dpms = qxl_crtc_dpms,
 592         .disable = qxl_crtc_disable,
 593         .mode_fixup = qxl_crtc_mode_fixup,
 594         .mode_set = qxl_crtc_mode_set,
 595         .prepare = qxl_crtc_prepare,
 596         .commit = qxl_crtc_commit,
 597 };
 598
 599 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 600 {
 601         struct qxl_crtc *qxl_crtc;
 602
 603         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 604         if (!qxl_crtc)
 605                 return -ENOMEM;
 606
 607         drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 608         qxl_crtc->index = crtc_id;
 609         drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
 610         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 611         return 0;
 612 }
 613
 614 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 615 {
 616         DRM_DEBUG("\n");
 617 }
 618
 619 static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
 620                                const struct drm_display_mode *mode,
 621                                struct drm_display_mode *adjusted_mode)
 622 {
 623         DRM_DEBUG("\n");
 624         return true;
 625 }
 626
 627 static void qxl_enc_prepare(struct drm_encoder *encoder)
 628 {
 629         DRM_DEBUG("\n");
 630 }
 631
 632 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 633                 struct drm_encoder *encoder)
 634 {
 635         int i;
 636         struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 637         struct qxl_head *head;
 638         struct drm_display_mode *mode;
 639
 640         BUG_ON(!encoder);
 641         /* TODO: ugly, do better */
 642         i = output->index;
 643         if (!qdev->monitors_config ||
 644             qdev->monitors_config->max_allowed <= i) {
 645                 DRM_ERROR(
 646                 "head number too large or missing monitors config: %p, %d",
 647                 qdev->monitors_config,
 648                 qdev->monitors_config ?
 649                         qdev->monitors_config->max_allowed : -1);
 650                 return;
 651         }
 652         if (!encoder->crtc) {
 653                 DRM_ERROR("missing crtc on encoder %p\n", encoder);
 654                 return;
 655         }
 656         if (i != 0)
 657                 DRM_DEBUG("missing for multiple monitors: no head holes\n");
 658         head = &qdev->monitors_config->heads[i];
 659         head->id = i;
 660         if (encoder->crtc->enabled) {
 661                 mode = &encoder->crtc->mode;
 662                 head->width = mode->hdisplay;
 663                 head->height = mode->vdisplay;
 664                 head->x = encoder->crtc->x;
 665                 head->y = encoder->crtc->y;
 666                 if (qdev->monitors_config->count < i + 1)
 667                         qdev->monitors_config->count = i + 1;
 668         } else {
 669                 head->width = 0;
 670                 head->height = 0;
 671                 head->x = 0;
 672                 head->y = 0;
 673         }
 674         DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 675                       i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 676         head->flags = 0;
 677         /* TODO - somewhere else to call this for multiple monitors
 678          * (config_commit?) */
 679         qxl_send_monitors_config(qdev);
 680 }
 681
 682 static void qxl_enc_commit(struct drm_encoder *encoder)
 683 {
 684         struct qxl_device *qdev = encoder->dev->dev_private;
 685
 686         qxl_write_monitors_config_for_encoder(qdev, encoder);
 687         DRM_DEBUG("\n");
 688 }
 689
 690 static void qxl_enc_mode_set(struct drm_encoder *encoder,
 691                                 struct drm_display_mode *mode,
 692                                 struct drm_display_mode *adjusted_mode)
 693 {
 694         DRM_DEBUG("\n");
 695 }
 696
 697 static int qxl_conn_get_modes(struct drm_connector *connector)
 698 {
 699         int ret = 0;
 700         struct qxl_device *qdev = connector->dev->dev_private;
 701
 702         DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 703         /* TODO: what should we do here? only show the configured modes for the
 704          * device, or allow the full list, or both? */
 705         if (qdev->monitors_config && qdev->monitors_config->count) {
 706                 ret = qxl_add_monitors_config_modes(connector);
 707                 if (ret < 0)
 708                         return ret;
 709         }
 710         ret += qxl_add_common_modes(connector);
 711         return ret;
 712 }
 713
 714 static int qxl_conn_mode_valid(struct drm_connector *connector,
 715                                struct drm_display_mode *mode)
 716 {
 717         /* TODO: is this called for user defined modes? (xrandr --add-mode)
 718          * TODO: check that the mode fits in the framebuffer */
 719         DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
 720                   mode->vdisplay, mode->status);
 721         return MODE_OK;
 722 }
 723
 724 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 725 {
 726         struct qxl_output *qxl_output =
 727                 drm_connector_to_qxl_output(connector);
 728
 729         DRM_DEBUG("\n");
 730         return &qxl_output->enc;
 731 }
 732
 733
 734 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 735         .dpms = qxl_enc_dpms,
 736         .mode_fixup = qxl_enc_mode_fixup,
 737         .prepare = qxl_enc_prepare,
 738         .mode_set = qxl_enc_mode_set,
 739         .commit = qxl_enc_commit,
 740 };
 741
 742 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 743         .get_modes = qxl_conn_get_modes,
 744         .mode_valid = qxl_conn_mode_valid,
 745         .best_encoder = qxl_best_encoder,
 746 };
 747
 748 static void qxl_conn_save(struct drm_connector *connector)
 749 {
 750         DRM_DEBUG("\n");
 751 }
 752
 753 static void qxl_conn_restore(struct drm_connector *connector)
 754 {
 755         DRM_DEBUG("\n");
 756 }
 757
 758 static enum drm_connector_status qxl_conn_detect(
 759                         struct drm_connector *connector,
 760                         bool force)
 761 {
 762         struct qxl_output *output =
 763                 drm_connector_to_qxl_output(connector);
 764         struct drm_device *ddev = connector->dev;
 765         struct qxl_device *qdev = ddev->dev_private;
 766         int connected;
 767
 768         /* The first monitor is always connected */
 769         connected = (output->index == 0) ||
 770                     (qdev->client_monitors_config &&
 771                      qdev->client_monitors_config->count > output->index &&
 772                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
 773
 774         DRM_DEBUG("\n");
 775         return connected ? connector_status_connected
 776                          : connector_status_disconnected;
 777 }
 778
 779 static int qxl_conn_set_property(struct drm_connector *connector,
 780                                    struct drm_property *property,
 781                                    uint64_t value)
 782 {
 783         DRM_DEBUG("\n");
 784         return 0;
 785 }
 786
 787 static void qxl_conn_destroy(struct drm_connector *connector)
 788 {
 789         struct qxl_output *qxl_output =
 790                 drm_connector_to_qxl_output(connector);
 791
 792         drm_sysfs_connector_remove(connector);
 793         drm_connector_cleanup(connector);
 794         kfree(qxl_output);
 795 }
 796
 797 static const struct drm_connector_funcs qxl_connector_funcs = {
 798         .dpms = drm_helper_connector_dpms,
 799         .save = qxl_conn_save,
 800         .restore = qxl_conn_restore,
 801         .detect = qxl_conn_detect,
 802         .fill_modes = drm_helper_probe_single_connector_modes,
 803         .set_property = qxl_conn_set_property,
 804         .destroy = qxl_conn_destroy,
 805 };
 806
 807 static void qxl_enc_destroy(struct drm_encoder *encoder)
 808 {
 809         drm_encoder_cleanup(encoder);
 810 }
 811
 812 static const struct drm_encoder_funcs qxl_enc_funcs = {
 813         .destroy = qxl_enc_destroy,
 814 };
 815
 816 static int qdev_output_init(struct drm_device *dev, int num_output)
 817 {
 818         struct qxl_output *qxl_output;
 819         struct drm_connector *connector;
 820         struct drm_encoder *encoder;
 821
 822         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 823         if (!qxl_output)
 824                 return -ENOMEM;
 825
 826         qxl_output->index = num_output;
 827
 828         connector = &qxl_output->base;
 829         encoder = &qxl_output->enc;
 830         drm_connector_init(dev, &qxl_output->base,
 831                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 832
 833         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 834                          DRM_MODE_ENCODER_VIRTUAL);
 835
 836         encoder->possible_crtcs = 1 << num_output;
 837         drm_mode_connector_attach_encoder(&qxl_output->base,
 838                                           &qxl_output->enc);
 839         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 840         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 841
 842         drm_sysfs_connector_add(connector);
 843         return 0;
 844 }
 845
 846 static struct drm_framebuffer *
 847 qxl_user_framebuffer_create(struct drm_device *dev,
 848                             struct drm_file *file_priv,
 849                             struct drm_mode_fb_cmd2 *mode_cmd)
 850 {
 851         struct drm_gem_object *obj;
 852         struct qxl_framebuffer *qxl_fb;
 853         int ret;
 854
 855         obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 856
 857         qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 858         if (qxl_fb == NULL)
 859                 return NULL;
 860
 861         ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
 862         if (ret) {
 863                 kfree(qxl_fb);
 864                 drm_gem_object_unreference_unlocked(obj);
 865                 return NULL;
 866         }
 867
 868         return &qxl_fb->base;
 869 }
 870
 871 static const struct drm_mode_config_funcs qxl_mode_funcs = {
 872         .fb_create = qxl_user_framebuffer_create,
 873 };
 874
 875 int qxl_create_monitors_object(struct qxl_device *qdev)
 876 {
 877         int ret;
 878         struct drm_gem_object *gobj;
 879         int max_allowed = qxl_num_crtc;
 880         int monitors_config_size = sizeof(struct qxl_monitors_config) +
 881                 max_allowed * sizeof(struct qxl_head);
 882
 883         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
 884                                     QXL_GEM_DOMAIN_VRAM,
 885                                     false, false, NULL, &gobj);
 886         if (ret) {
 887                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
 888                 return -ENOMEM;
 889         }
 890         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
 891
 892         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
 893         if (ret)
 894                 return ret;
 895
 896         ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
 897         if (ret) {
 898                 qxl_bo_unreserve(qdev->monitors_config_bo);
 899                 return ret;
 900         }
 901
 902         qxl_bo_unreserve(qdev->monitors_config_bo);
 903
 904         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
 905
 906         qdev->monitors_config = qdev->monitors_config_bo->kptr;
 907         qdev->ram_header->monitors_config =
 908                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
 909
 910         memset(qdev->monitors_config, 0, monitors_config_size);
 911         qdev->monitors_config->max_allowed = max_allowed;
 912         return 0;
 913 }
 914
 915 int qxl_destroy_monitors_object(struct qxl_device *qdev)
 916 {
 917         int ret;
 918
 919         qdev->monitors_config = NULL;
 920         qdev->ram_header->monitors_config = 0;
 921
 922         qxl_bo_kunmap(qdev->monitors_config_bo);
 923         ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
 924         if (ret)
 925                 return ret;
 926
 927         qxl_bo_unpin(qdev->monitors_config_bo);
 928         qxl_bo_unreserve(qdev->monitors_config_bo);
 929
 930         qxl_bo_unref(&qdev->monitors_config_bo);
 931         return 0;
 932 }
 933
 934 int qxl_modeset_init(struct qxl_device *qdev)
 935 {
 936         int i;
 937         int ret;
 938
 939         drm_mode_config_init(qdev->ddev);
 940
 941         ret = qxl_create_monitors_object(qdev);
 942         if (ret)
 943                 return ret;
 944
 945         qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
 946
 947         /* modes will be validated against the framebuffer size */
 948         qdev->ddev->mode_config.min_width = 320;
 949         qdev->ddev->mode_config.min_height = 200;
 950         qdev->ddev->mode_config.max_width = 8192;
 951         qdev->ddev->mode_config.max_height = 8192;
 952
 953         qdev->ddev->mode_config.fb_base = qdev->vram_base;
 954         for (i = 0 ; i < qxl_num_crtc; ++i) {
 955                 qdev_crtc_init(qdev->ddev, i);
 956                 qdev_output_init(qdev->ddev, i);
 957         }
 958
 959         qdev->mode_info.mode_config_initialized = true;
 960
 961         /* primary surface must be created by this point, to allow
 962          * issuing command queue commands and having them read by
 963          * spice server. */
 964         qxl_fbdev_init(qdev);
 965         return 0;
 966 }
 967
 968 void qxl_modeset_fini(struct qxl_device *qdev)
 969 {
 970         qxl_fbdev_fini(qdev);
 971
 972         qxl_destroy_monitors_object(qdev);
 973         if (qdev->mode_info.mode_config_initialized) {
 974                 drm_mode_config_cleanup(qdev->ddev);
 975                 qdev->mode_info.mode_config_initialized = false;
 976         }
 977 }