drivers/gpu/drm/qxl/qxl

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This source file includes following definitions.
qxl_head_enabled
qxl_alloc_client_monitors_config
qxl_display_copy_rom_client_monitors_config
qxl_update_offset_props
qxl_display_read_client_monitors_config
qxl_check_mode
qxl_check_framebuffer
qxl_add_mode
qxl_add_monitors_config_modes
qxl_add_extra_modes
qxl_send_monitors_config
qxl_crtc_update_monitors_config
qxl_crtc_atomic_flush
qxl_crtc_destroy
qxl_framebuffer_surface_dirty
qxl_crtc_atomic_enable
qxl_crtc_atomic_disable
qxl_primary_atomic_check
qxl_primary_apply_cursor
qxl_primary_atomic_update
qxl_primary_atomic_disable
qxl_cursor_atomic_update
qxl_cursor_atomic_disable
qxl_update_dumb_head
qxl_calc_dumb_shadow
qxl_plane_prepare_fb
qxl_plane_cleanup_fb
qxl_create_plane
qdev_crtc_init
qxl_conn_get_modes
qxl_conn_mode_valid
qxl_best_encoder
qxl_conn_detect
qxl_conn_destroy
qxl_enc_destroy
qxl_mode_create_hotplug_mode_update_property
qdev_output_init
qxl_user_framebuffer_create
qxl_create_monitors_object
qxl_destroy_monitors_object
qxl_modeset_init
qxl_modeset_fini
   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 <linux/delay.h>
  28 
  29 #include <drm/drm_atomic.h>
  30 #include <drm/drm_atomic_helper.h>
  31 #include <drm/drm_gem_framebuffer_helper.h>
  32 #include <drm/drm_plane_helper.h>
  33 #include <drm/drm_probe_helper.h>
  34 #include <drm/drm_vblank.h>
  35 
  36 #include "qxl_drv.h"
  37 #include "qxl_object.h"
  38 
  39 static bool qxl_head_enabled(struct qxl_head *head)
  40 {
  41         return head->width && head->height;
  42 }
  43 
  44 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
  45                 unsigned int count)
  46 {
  47         if (qdev->client_monitors_config &&
  48             count > qdev->client_monitors_config->count) {
  49                 kfree(qdev->client_monitors_config);
  50                 qdev->client_monitors_config = NULL;
  51         }
  52         if (!qdev->client_monitors_config) {
  53                 qdev->client_monitors_config = kzalloc(
  54                                 struct_size(qdev->client_monitors_config,
  55                                 heads, count), GFP_KERNEL);
  56                 if (!qdev->client_monitors_config)
  57                         return -ENOMEM;
  58         }
  59         qdev->client_monitors_config->count = count;
  60         return 0;
  61 }
  62 
  63 enum {
  64         MONITORS_CONFIG_MODIFIED,
  65         MONITORS_CONFIG_UNCHANGED,
  66         MONITORS_CONFIG_BAD_CRC,
  67         MONITORS_CONFIG_ERROR,
  68 };
  69 
  70 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
  71 {
  72         int i;
  73         int num_monitors;
  74         uint32_t crc;
  75         int status = MONITORS_CONFIG_UNCHANGED;
  76 
  77         num_monitors = qdev->rom->client_monitors_config.count;
  78         crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
  79                   sizeof(qdev->rom->client_monitors_config));
  80         if (crc != qdev->rom->client_monitors_config_crc)
  81                 return MONITORS_CONFIG_BAD_CRC;
  82         if (!num_monitors) {
  83                 DRM_DEBUG_KMS("no client monitors configured\n");
  84                 return status;
  85         }
  86         if (num_monitors > qxl_num_crtc) {
  87                 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
  88                               qxl_num_crtc, num_monitors);
  89                 num_monitors = qxl_num_crtc;
  90         } else {
  91                 num_monitors = qdev->rom->client_monitors_config.count;
  92         }
  93         if (qdev->client_monitors_config
  94               && (num_monitors != qdev->client_monitors_config->count)) {
  95                 status = MONITORS_CONFIG_MODIFIED;
  96         }
  97         if (qxl_alloc_client_monitors_config(qdev, num_monitors)) {
  98                 status = MONITORS_CONFIG_ERROR;
  99                 return status;
 100         }
 101         /* we copy max from the client but it isn't used */
 102         qdev->client_monitors_config->max_allowed = qxl_num_crtc;
 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_ERROR) {
 174                 DRM_DEBUG_KMS("ignoring client monitors config: error");
 175                 return;
 176         }
 177         if (status == MONITORS_CONFIG_BAD_CRC) {
 178                 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
 179                 return;
 180         }
 181         if (status == MONITORS_CONFIG_UNCHANGED) {
 182                 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
 183                 return;
 184         }
 185 
 186         drm_modeset_lock_all(dev);
 187         qxl_update_offset_props(qdev);
 188         drm_modeset_unlock_all(dev);
 189         if (!drm_helper_hpd_irq_event(dev)) {
 190                 /* notify that the monitor configuration changed, to
 191                    adjust at the arbitrary resolution */
 192                 drm_kms_helper_hotplug_event(dev);
 193         }
 194 }
 195 
 196 static int qxl_check_mode(struct qxl_device *qdev,
 197                           unsigned int width,
 198                           unsigned int height)
 199 {
 200         unsigned int stride;
 201         unsigned int size;
 202 
 203         if (check_mul_overflow(width, 4u, &stride))
 204                 return -EINVAL;
 205         if (check_mul_overflow(stride, height, &size))
 206                 return -EINVAL;
 207         if (size > qdev->vram_size)
 208                 return -ENOMEM;
 209         return 0;
 210 }
 211 
 212 static int qxl_check_framebuffer(struct qxl_device *qdev,
 213                                  struct qxl_bo *bo)
 214 {
 215         return qxl_check_mode(qdev, bo->surf.width, bo->surf.height);
 216 }
 217 
 218 static int qxl_add_mode(struct drm_connector *connector,
 219                         unsigned int width,
 220                         unsigned int height,
 221                         bool preferred)
 222 {
 223         struct drm_device *dev = connector->dev;
 224         struct qxl_device *qdev = dev->dev_private;
 225         struct drm_display_mode *mode = NULL;
 226         int rc;
 227 
 228         rc = qxl_check_mode(qdev, width, height);
 229         if (rc != 0)
 230                 return 0;
 231 
 232         mode = drm_cvt_mode(dev, width, height, 60, false, false, false);
 233         if (preferred)
 234                 mode->type |= DRM_MODE_TYPE_PREFERRED;
 235         mode->hdisplay = width;
 236         mode->vdisplay = height;
 237         drm_mode_set_name(mode);
 238         drm_mode_probed_add(connector, mode);
 239         return 1;
 240 }
 241 
 242 static int qxl_add_monitors_config_modes(struct drm_connector *connector)
 243 {
 244         struct drm_device *dev = connector->dev;
 245         struct qxl_device *qdev = dev->dev_private;
 246         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 247         int h = output->index;
 248         struct qxl_head *head;
 249 
 250         if (!qdev->monitors_config)
 251                 return 0;
 252         if (h >= qxl_num_crtc)
 253                 return 0;
 254         if (!qdev->client_monitors_config)
 255                 return 0;
 256         if (h >= qdev->client_monitors_config->count)
 257                 return 0;
 258 
 259         head = &qdev->client_monitors_config->heads[h];
 260         DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
 261 
 262         return qxl_add_mode(connector, head->width, head->height, true);
 263 }
 264 
 265 static struct mode_size {
 266         int w;
 267         int h;
 268 } extra_modes[] = {
 269         { 720,  480},
 270         {1152,  768},
 271         {1280,  854},
 272 };
 273 
 274 static int qxl_add_extra_modes(struct drm_connector *connector)
 275 {
 276         int i, ret = 0;
 277 
 278         for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
 279                 ret += qxl_add_mode(connector,
 280                                     extra_modes[i].w,
 281                                     extra_modes[i].h,
 282                                     false);
 283         return ret;
 284 }
 285 
 286 static void qxl_send_monitors_config(struct qxl_device *qdev)
 287 {
 288         int i;
 289 
 290         BUG_ON(!qdev->ram_header->monitors_config);
 291 
 292         if (qdev->monitors_config->count == 0)
 293                 return;
 294 
 295         for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 296                 struct qxl_head *head = &qdev->monitors_config->heads[i];
 297 
 298                 if (head->y > 8192 || head->x > 8192 ||
 299                     head->width > 8192 || head->height > 8192) {
 300                         DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 301                                   i, head->width, head->height,
 302                                   head->x, head->y);
 303                         return;
 304                 }
 305         }
 306         qxl_io_monitors_config(qdev);
 307 }
 308 
 309 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
 310                                             const char *reason)
 311 {
 312         struct drm_device *dev = crtc->dev;
 313         struct qxl_device *qdev = dev->dev_private;
 314         struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 315         struct qxl_head head;
 316         int oldcount, i = qcrtc->index;
 317 
 318         if (!qdev->primary_bo) {
 319                 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
 320                 return;
 321         }
 322 
 323         if (!qdev->monitors_config || qxl_num_crtc <= i)
 324                 return;
 325 
 326         head.id = i;
 327         head.flags = 0;
 328         oldcount = qdev->monitors_config->count;
 329         if (crtc->state->active) {
 330                 struct drm_display_mode *mode = &crtc->mode;
 331 
 332                 head.width = mode->hdisplay;
 333                 head.height = mode->vdisplay;
 334                 head.x = crtc->x;
 335                 head.y = crtc->y;
 336                 if (qdev->monitors_config->count < i + 1)
 337                         qdev->monitors_config->count = i + 1;
 338                 if (qdev->primary_bo == qdev->dumb_shadow_bo)
 339                         head.x += qdev->dumb_heads[i].x;
 340         } else if (i > 0) {
 341                 head.width = 0;
 342                 head.height = 0;
 343                 head.x = 0;
 344                 head.y = 0;
 345                 if (qdev->monitors_config->count == i + 1)
 346                         qdev->monitors_config->count = i;
 347         } else {
 348                 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
 349                 return;
 350         }
 351 
 352         if (head.width  == qdev->monitors_config->heads[i].width  &&
 353             head.height == qdev->monitors_config->heads[i].height &&
 354             head.x      == qdev->monitors_config->heads[i].x      &&
 355             head.y      == qdev->monitors_config->heads[i].y      &&
 356             oldcount    == qdev->monitors_config->count)
 357                 return;
 358 
 359         DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
 360                       i, head.width, head.height, head.x, head.y,
 361                       crtc->state->active ? "on" : "off", reason);
 362         if (oldcount != qdev->monitors_config->count)
 363                 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
 364                               oldcount, qdev->monitors_config->count,
 365                               qxl_num_crtc);
 366 
 367         qdev->monitors_config->heads[i] = head;
 368         qdev->monitors_config->max_allowed = qxl_num_crtc;
 369         qxl_send_monitors_config(qdev);
 370 }
 371 
 372 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
 373                                   struct drm_crtc_state *old_crtc_state)
 374 {
 375         struct drm_device *dev = crtc->dev;
 376         struct drm_pending_vblank_event *event;
 377         unsigned long flags;
 378 
 379         if (crtc->state && crtc->state->event) {
 380                 event = crtc->state->event;
 381                 crtc->state->event = NULL;
 382 
 383                 spin_lock_irqsave(&dev->event_lock, flags);
 384                 drm_crtc_send_vblank_event(crtc, event);
 385                 spin_unlock_irqrestore(&dev->event_lock, flags);
 386         }
 387 
 388         qxl_crtc_update_monitors_config(crtc, "flush");
 389 }
 390 
 391 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 392 {
 393         struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 394 
 395         qxl_bo_unref(&qxl_crtc->cursor_bo);
 396         drm_crtc_cleanup(crtc);
 397         kfree(qxl_crtc);
 398 }
 399 
 400 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 401         .set_config = drm_atomic_helper_set_config,
 402         .destroy = qxl_crtc_destroy,
 403         .page_flip = drm_atomic_helper_page_flip,
 404         .reset = drm_atomic_helper_crtc_reset,
 405         .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 406         .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 407 };
 408 
 409 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 410                                          struct drm_file *file_priv,
 411                                          unsigned int flags, unsigned int color,
 412                                          struct drm_clip_rect *clips,
 413                                          unsigned int num_clips)
 414 {
 415         /* TODO: vmwgfx where this was cribbed from had locking. Why? */
 416         struct qxl_device *qdev = fb->dev->dev_private;
 417         struct drm_clip_rect norect;
 418         struct qxl_bo *qobj;
 419         bool is_primary;
 420         int inc = 1;
 421 
 422         drm_modeset_lock_all(fb->dev);
 423 
 424         qobj = gem_to_qxl_bo(fb->obj[0]);
 425         /* if we aren't primary surface ignore this */
 426         is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
 427         if (!is_primary) {
 428                 drm_modeset_unlock_all(fb->dev);
 429                 return 0;
 430         }
 431 
 432         if (!num_clips) {
 433                 num_clips = 1;
 434                 clips = &norect;
 435                 norect.x1 = norect.y1 = 0;
 436                 norect.x2 = fb->width;
 437                 norect.y2 = fb->height;
 438         } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 439                 num_clips /= 2;
 440                 inc = 2; /* skip source rects */
 441         }
 442 
 443         qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
 444                           clips, num_clips, inc, 0);
 445 
 446         drm_modeset_unlock_all(fb->dev);
 447 
 448         return 0;
 449 }
 450 
 451 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 452         .destroy = drm_gem_fb_destroy,
 453         .dirty = qxl_framebuffer_surface_dirty,
 454         .create_handle = drm_gem_fb_create_handle,
 455 };
 456 
 457 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
 458                                    struct drm_crtc_state *old_state)
 459 {
 460         qxl_crtc_update_monitors_config(crtc, "enable");
 461 }
 462 
 463 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
 464                                     struct drm_crtc_state *old_state)
 465 {
 466         qxl_crtc_update_monitors_config(crtc, "disable");
 467 }
 468 
 469 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 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_bo *bo;
 480 
 481         if (!state->crtc || !state->fb)
 482                 return 0;
 483 
 484         bo = gem_to_qxl_bo(state->fb->obj[0]);
 485 
 486         return qxl_check_framebuffer(qdev, bo);
 487 }
 488 
 489 static int qxl_primary_apply_cursor(struct drm_plane *plane)
 490 {
 491         struct drm_device *dev = plane->dev;
 492         struct qxl_device *qdev = dev->dev_private;
 493         struct drm_framebuffer *fb = plane->state->fb;
 494         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 495         struct qxl_cursor_cmd *cmd;
 496         struct qxl_release *release;
 497         int ret = 0;
 498 
 499         if (!qcrtc->cursor_bo)
 500                 return 0;
 501 
 502         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 503                                          QXL_RELEASE_CURSOR_CMD,
 504                                          &release, NULL);
 505         if (ret)
 506                 return ret;
 507 
 508         ret = qxl_release_list_add(release, qcrtc->cursor_bo);
 509         if (ret)
 510                 goto out_free_release;
 511 
 512         ret = qxl_release_reserve_list(release, false);
 513         if (ret)
 514                 goto out_free_release;
 515 
 516         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 517         cmd->type = QXL_CURSOR_SET;
 518         cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
 519         cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
 520 
 521         cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
 522 
 523         cmd->u.set.visible = 1;
 524         qxl_release_unmap(qdev, release, &cmd->release_info);
 525 
 526         qxl_release_fence_buffer_objects(release);
 527         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 528 
 529         return ret;
 530 
 531 out_free_release:
 532         qxl_release_free(qdev, release);
 533         return ret;
 534 }
 535 
 536 static void qxl_primary_atomic_update(struct drm_plane *plane,
 537                                       struct drm_plane_state *old_state)
 538 {
 539         struct qxl_device *qdev = plane->dev->dev_private;
 540         struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
 541         struct qxl_bo *primary;
 542         struct drm_clip_rect norect = {
 543             .x1 = 0,
 544             .y1 = 0,
 545             .x2 = plane->state->fb->width,
 546             .y2 = plane->state->fb->height
 547         };
 548         uint32_t dumb_shadow_offset = 0;
 549 
 550         primary = bo->shadow ? bo->shadow : bo;
 551 
 552         if (!primary->is_primary) {
 553                 if (qdev->primary_bo)
 554                         qxl_io_destroy_primary(qdev);
 555                 qxl_io_create_primary(qdev, primary);
 556                 qxl_primary_apply_cursor(plane);
 557         }
 558 
 559         if (bo->is_dumb)
 560                 dumb_shadow_offset =
 561                         qdev->dumb_heads[plane->state->crtc->index].x;
 562 
 563         qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1,
 564                           dumb_shadow_offset);
 565 }
 566 
 567 static void qxl_primary_atomic_disable(struct drm_plane *plane,
 568                                        struct drm_plane_state *old_state)
 569 {
 570         struct qxl_device *qdev = plane->dev->dev_private;
 571 
 572         if (old_state->fb) {
 573                 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
 574 
 575                 if (bo->is_primary) {
 576                         qxl_io_destroy_primary(qdev);
 577                         bo->is_primary = false;
 578                 }
 579         }
 580 }
 581 
 582 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 583                                      struct drm_plane_state *old_state)
 584 {
 585         struct drm_device *dev = plane->dev;
 586         struct qxl_device *qdev = dev->dev_private;
 587         struct drm_framebuffer *fb = plane->state->fb;
 588         struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
 589         struct qxl_release *release;
 590         struct qxl_cursor_cmd *cmd;
 591         struct qxl_cursor *cursor;
 592         struct drm_gem_object *obj;
 593         struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
 594         int ret;
 595         void *user_ptr;
 596         int size = 64*64*4;
 597 
 598         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 599                                          QXL_RELEASE_CURSOR_CMD,
 600                                          &release, NULL);
 601         if (ret)
 602                 return;
 603 
 604         if (fb != old_state->fb) {
 605                 obj = fb->obj[0];
 606                 user_bo = gem_to_qxl_bo(obj);
 607 
 608                 /* pinning is done in the prepare/cleanup framevbuffer */
 609                 ret = qxl_bo_kmap(user_bo, &user_ptr);
 610                 if (ret)
 611                         goto out_free_release;
 612 
 613                 ret = qxl_alloc_bo_reserved(qdev, release,
 614                                             sizeof(struct qxl_cursor) + size,
 615                                             &cursor_bo);
 616                 if (ret)
 617                         goto out_kunmap;
 618 
 619                 ret = qxl_bo_pin(cursor_bo);
 620                 if (ret)
 621                         goto out_free_bo;
 622 
 623                 ret = qxl_release_reserve_list(release, true);
 624                 if (ret)
 625                         goto out_unpin;
 626 
 627                 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 628                 if (ret)
 629                         goto out_backoff;
 630 
 631                 cursor->header.unique = 0;
 632                 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 633                 cursor->header.width = 64;
 634                 cursor->header.height = 64;
 635                 cursor->header.hot_spot_x = fb->hot_x;
 636                 cursor->header.hot_spot_y = fb->hot_y;
 637                 cursor->data_size = size;
 638                 cursor->chunk.next_chunk = 0;
 639                 cursor->chunk.prev_chunk = 0;
 640                 cursor->chunk.data_size = size;
 641                 memcpy(cursor->chunk.data, user_ptr, size);
 642                 qxl_bo_kunmap(cursor_bo);
 643                 qxl_bo_kunmap(user_bo);
 644 
 645                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 646                 cmd->u.set.visible = 1;
 647                 cmd->u.set.shape = qxl_bo_physical_address(qdev,
 648                                                            cursor_bo, 0);
 649                 cmd->type = QXL_CURSOR_SET;
 650 
 651                 old_cursor_bo = qcrtc->cursor_bo;
 652                 qcrtc->cursor_bo = cursor_bo;
 653                 cursor_bo = NULL;
 654         } else {
 655 
 656                 ret = qxl_release_reserve_list(release, true);
 657                 if (ret)
 658                         goto out_free_release;
 659 
 660                 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
 661                 cmd->type = QXL_CURSOR_MOVE;
 662         }
 663 
 664         cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
 665         cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
 666 
 667         qxl_release_unmap(qdev, release, &cmd->release_info);
 668         qxl_release_fence_buffer_objects(release);
 669         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 670 
 671         if (old_cursor_bo != NULL)
 672                 qxl_bo_unpin(old_cursor_bo);
 673         qxl_bo_unref(&old_cursor_bo);
 674         qxl_bo_unref(&cursor_bo);
 675 
 676         return;
 677 
 678 out_backoff:
 679         qxl_release_backoff_reserve_list(release);
 680 out_unpin:
 681         qxl_bo_unpin(cursor_bo);
 682 out_free_bo:
 683         qxl_bo_unref(&cursor_bo);
 684 out_kunmap:
 685         qxl_bo_kunmap(user_bo);
 686 out_free_release:
 687         qxl_release_free(qdev, release);
 688         return;
 689 
 690 }
 691 
 692 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
 693                                       struct drm_plane_state *old_state)
 694 {
 695         struct qxl_device *qdev = plane->dev->dev_private;
 696         struct qxl_release *release;
 697         struct qxl_cursor_cmd *cmd;
 698         int ret;
 699 
 700         ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 701                                          QXL_RELEASE_CURSOR_CMD,
 702                                          &release, NULL);
 703         if (ret)
 704                 return;
 705 
 706         ret = qxl_release_reserve_list(release, true);
 707         if (ret) {
 708                 qxl_release_free(qdev, release);
 709                 return;
 710         }
 711 
 712         cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 713         cmd->type = QXL_CURSOR_HIDE;
 714         qxl_release_unmap(qdev, release, &cmd->release_info);
 715 
 716         qxl_release_fence_buffer_objects(release);
 717         qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 718 }
 719 
 720 static void qxl_update_dumb_head(struct qxl_device *qdev,
 721                                  int index, struct qxl_bo *bo)
 722 {
 723         uint32_t width, height;
 724 
 725         if (index >= qdev->monitors_config->max_allowed)
 726                 return;
 727 
 728         if (bo && bo->is_dumb) {
 729                 width = bo->surf.width;
 730                 height = bo->surf.height;
 731         } else {
 732                 width = 0;
 733                 height = 0;
 734         }
 735 
 736         if (qdev->dumb_heads[index].width == width &&
 737             qdev->dumb_heads[index].height == height)
 738                 return;
 739 
 740         DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
 741                   qdev->dumb_heads[index].width,
 742                   qdev->dumb_heads[index].height,
 743                   width, height);
 744         qdev->dumb_heads[index].width = width;
 745         qdev->dumb_heads[index].height = height;
 746 }
 747 
 748 static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
 749                                  struct qxl_surface *surf)
 750 {
 751         struct qxl_head *head;
 752         int i;
 753 
 754         memset(surf, 0, sizeof(*surf));
 755         for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
 756                 head = qdev->dumb_heads + i;
 757                 head->x = surf->width;
 758                 surf->width += head->width;
 759                 if (surf->height < head->height)
 760                         surf->height = head->height;
 761         }
 762         if (surf->width < 64)
 763                 surf->width = 64;
 764         if (surf->height < 64)
 765                 surf->height = 64;
 766         surf->format = SPICE_SURFACE_FMT_32_xRGB;
 767         surf->stride = surf->width * 4;
 768 
 769         if (!qdev->dumb_shadow_bo ||
 770             qdev->dumb_shadow_bo->surf.width != surf->width ||
 771             qdev->dumb_shadow_bo->surf.height != surf->height)
 772                 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
 773 }
 774 
 775 static int qxl_plane_prepare_fb(struct drm_plane *plane,
 776                                 struct drm_plane_state *new_state)
 777 {
 778         struct qxl_device *qdev = plane->dev->dev_private;
 779         struct drm_gem_object *obj;
 780         struct qxl_bo *user_bo;
 781         struct qxl_surface surf;
 782         int ret;
 783 
 784         if (!new_state->fb)
 785                 return 0;
 786 
 787         obj = new_state->fb->obj[0];
 788         user_bo = gem_to_qxl_bo(obj);
 789 
 790         if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
 791             user_bo->is_dumb) {
 792                 qxl_update_dumb_head(qdev, new_state->crtc->index,
 793                                      user_bo);
 794                 qxl_calc_dumb_shadow(qdev, &surf);
 795                 if (!qdev->dumb_shadow_bo ||
 796                     qdev->dumb_shadow_bo->surf.width  != surf.width ||
 797                     qdev->dumb_shadow_bo->surf.height != surf.height) {
 798                         if (qdev->dumb_shadow_bo) {
 799                                 drm_gem_object_put_unlocked
 800                                         (&qdev->dumb_shadow_bo->tbo.base);
 801                                 qdev->dumb_shadow_bo = NULL;
 802                         }
 803                         qxl_bo_create(qdev, surf.height * surf.stride,
 804                                       true, true, QXL_GEM_DOMAIN_SURFACE, &surf,
 805                                       &qdev->dumb_shadow_bo);
 806                 }
 807                 if (user_bo->shadow != qdev->dumb_shadow_bo) {
 808                         if (user_bo->shadow) {
 809                                 drm_gem_object_put_unlocked
 810                                         (&user_bo->shadow->tbo.base);
 811                                 user_bo->shadow = NULL;
 812                         }
 813                         drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
 814                         user_bo->shadow = qdev->dumb_shadow_bo;
 815                 }
 816         }
 817 
 818         ret = qxl_bo_pin(user_bo);
 819         if (ret)
 820                 return ret;
 821 
 822         return 0;
 823 }
 824 
 825 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 826                                  struct drm_plane_state *old_state)
 827 {
 828         struct drm_gem_object *obj;
 829         struct qxl_bo *user_bo;
 830 
 831         if (!old_state->fb) {
 832                 /*
 833                  * we never executed prepare_fb, so there's nothing to
 834                  * unpin.
 835                  */
 836                 return;
 837         }
 838 
 839         obj = old_state->fb->obj[0];
 840         user_bo = gem_to_qxl_bo(obj);
 841         qxl_bo_unpin(user_bo);
 842 
 843         if (old_state->fb != plane->state->fb && user_bo->shadow) {
 844                 drm_gem_object_put_unlocked(&user_bo->shadow->tbo.base);
 845                 user_bo->shadow = NULL;
 846         }
 847 }
 848 
 849 static const uint32_t qxl_cursor_plane_formats[] = {
 850         DRM_FORMAT_ARGB8888,
 851 };
 852 
 853 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 854         .atomic_update = qxl_cursor_atomic_update,
 855         .atomic_disable = qxl_cursor_atomic_disable,
 856         .prepare_fb = qxl_plane_prepare_fb,
 857         .cleanup_fb = qxl_plane_cleanup_fb,
 858 };
 859 
 860 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 861         .update_plane   = drm_atomic_helper_update_plane,
 862         .disable_plane  = drm_atomic_helper_disable_plane,
 863         .destroy        = drm_primary_helper_destroy,
 864         .reset          = drm_atomic_helper_plane_reset,
 865         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 866         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 867 };
 868 
 869 static const uint32_t qxl_primary_plane_formats[] = {
 870         DRM_FORMAT_XRGB8888,
 871         DRM_FORMAT_ARGB8888,
 872 };
 873 
 874 static const struct drm_plane_helper_funcs primary_helper_funcs = {
 875         .atomic_check = qxl_primary_atomic_check,
 876         .atomic_update = qxl_primary_atomic_update,
 877         .atomic_disable = qxl_primary_atomic_disable,
 878         .prepare_fb = qxl_plane_prepare_fb,
 879         .cleanup_fb = qxl_plane_cleanup_fb,
 880 };
 881 
 882 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 883         .update_plane   = drm_atomic_helper_update_plane,
 884         .disable_plane  = drm_atomic_helper_disable_plane,
 885         .destroy        = drm_primary_helper_destroy,
 886         .reset          = drm_atomic_helper_plane_reset,
 887         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 888         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 889 };
 890 
 891 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 892                                           unsigned int possible_crtcs,
 893                                           enum drm_plane_type type)
 894 {
 895         const struct drm_plane_helper_funcs *helper_funcs = NULL;
 896         struct drm_plane *plane;
 897         const struct drm_plane_funcs *funcs;
 898         const uint32_t *formats;
 899         int num_formats;
 900         int err;
 901 
 902         if (type == DRM_PLANE_TYPE_PRIMARY) {
 903                 funcs = &qxl_primary_plane_funcs;
 904                 formats = qxl_primary_plane_formats;
 905                 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
 906                 helper_funcs = &primary_helper_funcs;
 907         } else if (type == DRM_PLANE_TYPE_CURSOR) {
 908                 funcs = &qxl_cursor_plane_funcs;
 909                 formats = qxl_cursor_plane_formats;
 910                 helper_funcs = &qxl_cursor_helper_funcs;
 911                 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 912         } else {
 913                 return ERR_PTR(-EINVAL);
 914         }
 915 
 916         plane = kzalloc(sizeof(*plane), GFP_KERNEL);
 917         if (!plane)
 918                 return ERR_PTR(-ENOMEM);
 919 
 920         err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
 921                                        funcs, formats, num_formats,
 922                                        NULL, type, NULL);
 923         if (err)
 924                 goto free_plane;
 925 
 926         drm_plane_helper_add(plane, helper_funcs);
 927 
 928         return plane;
 929 
 930 free_plane:
 931         kfree(plane);
 932         return ERR_PTR(-EINVAL);
 933 }
 934 
 935 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 936 {
 937         struct qxl_crtc *qxl_crtc;
 938         struct drm_plane *primary, *cursor;
 939         struct qxl_device *qdev = dev->dev_private;
 940         int r;
 941 
 942         qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 943         if (!qxl_crtc)
 944                 return -ENOMEM;
 945 
 946         primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
 947         if (IS_ERR(primary)) {
 948                 r = -ENOMEM;
 949                 goto free_mem;
 950         }
 951 
 952         cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
 953         if (IS_ERR(cursor)) {
 954                 r = -ENOMEM;
 955                 goto clean_primary;
 956         }
 957 
 958         r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 959                                       &qxl_crtc_funcs, NULL);
 960         if (r)
 961                 goto clean_cursor;
 962 
 963         qxl_crtc->index = crtc_id;
 964         drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 965         return 0;
 966 
 967 clean_cursor:
 968         drm_plane_cleanup(cursor);
 969         kfree(cursor);
 970 clean_primary:
 971         drm_plane_cleanup(primary);
 972         kfree(primary);
 973 free_mem:
 974         kfree(qxl_crtc);
 975         return r;
 976 }
 977 
 978 static int qxl_conn_get_modes(struct drm_connector *connector)
 979 {
 980         struct drm_device *dev = connector->dev;
 981         struct qxl_device *qdev = dev->dev_private;
 982         struct qxl_output *output = drm_connector_to_qxl_output(connector);
 983         unsigned int pwidth = 1024;
 984         unsigned int pheight = 768;
 985         int ret = 0;
 986 
 987         if (qdev->client_monitors_config) {
 988                 struct qxl_head *head;
 989                 head = &qdev->client_monitors_config->heads[output->index];
 990                 if (head->width)
 991                         pwidth = head->width;
 992                 if (head->height)
 993                         pheight = head->height;
 994         }
 995 
 996         ret += drm_add_modes_noedid(connector, 8192, 8192);
 997         ret += qxl_add_extra_modes(connector);
 998         ret += qxl_add_monitors_config_modes(connector);
 999         drm_set_preferred_mode(connector, pwidth, pheight);
1000         return ret;
1001 }
1002 
1003 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
1004                                struct drm_display_mode *mode)
1005 {
1006         struct drm_device *ddev = connector->dev;
1007         struct qxl_device *qdev = ddev->dev_private;
1008 
1009         if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
1010                 return MODE_BAD;
1011 
1012         return MODE_OK;
1013 }
1014 
1015 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1016 {
1017         struct qxl_output *qxl_output =
1018                 drm_connector_to_qxl_output(connector);
1019 
1020         DRM_DEBUG("\n");
1021         return &qxl_output->enc;
1022 }
1023 
1024 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
1025 };
1026 
1027 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1028         .get_modes = qxl_conn_get_modes,
1029         .mode_valid = qxl_conn_mode_valid,
1030         .best_encoder = qxl_best_encoder,
1031 };
1032 
1033 static enum drm_connector_status qxl_conn_detect(
1034                         struct drm_connector *connector,
1035                         bool force)
1036 {
1037         struct qxl_output *output =
1038                 drm_connector_to_qxl_output(connector);
1039         struct drm_device *ddev = connector->dev;
1040         struct qxl_device *qdev = ddev->dev_private;
1041         bool connected = false;
1042 
1043         /* The first monitor is always connected */
1044         if (!qdev->client_monitors_config) {
1045                 if (output->index == 0)
1046                         connected = true;
1047         } else
1048                 connected = qdev->client_monitors_config->count > output->index &&
1049                      qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1050 
1051         DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1052 
1053         return connected ? connector_status_connected
1054                          : connector_status_disconnected;
1055 }
1056 
1057 static void qxl_conn_destroy(struct drm_connector *connector)
1058 {
1059         struct qxl_output *qxl_output =
1060                 drm_connector_to_qxl_output(connector);
1061 
1062         drm_connector_unregister(connector);
1063         drm_connector_cleanup(connector);
1064         kfree(qxl_output);
1065 }
1066 
1067 static const struct drm_connector_funcs qxl_connector_funcs = {
1068         .detect = qxl_conn_detect,
1069         .fill_modes = drm_helper_probe_single_connector_modes,
1070         .destroy = qxl_conn_destroy,
1071         .reset = drm_atomic_helper_connector_reset,
1072         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1073         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1074 };
1075 
1076 static void qxl_enc_destroy(struct drm_encoder *encoder)
1077 {
1078         drm_encoder_cleanup(encoder);
1079 }
1080 
1081 static const struct drm_encoder_funcs qxl_enc_funcs = {
1082         .destroy = qxl_enc_destroy,
1083 };
1084 
1085 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1086 {
1087         if (qdev->hotplug_mode_update_property)
1088                 return 0;
1089 
1090         qdev->hotplug_mode_update_property =
1091                 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1092                                           "hotplug_mode_update", 0, 1);
1093 
1094         return 0;
1095 }
1096 
1097 static int qdev_output_init(struct drm_device *dev, int num_output)
1098 {
1099         struct qxl_device *qdev = dev->dev_private;
1100         struct qxl_output *qxl_output;
1101         struct drm_connector *connector;
1102         struct drm_encoder *encoder;
1103 
1104         qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1105         if (!qxl_output)
1106                 return -ENOMEM;
1107 
1108         qxl_output->index = num_output;
1109 
1110         connector = &qxl_output->base;
1111         encoder = &qxl_output->enc;
1112         drm_connector_init(dev, &qxl_output->base,
1113                            &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1114 
1115         drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1116                          DRM_MODE_ENCODER_VIRTUAL, NULL);
1117 
1118         /* we get HPD via client monitors config */
1119         connector->polled = DRM_CONNECTOR_POLL_HPD;
1120         encoder->possible_crtcs = 1 << num_output;
1121         drm_connector_attach_encoder(&qxl_output->base,
1122                                           &qxl_output->enc);
1123         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1124         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1125 
1126         drm_object_attach_property(&connector->base,
1127                                    qdev->hotplug_mode_update_property, 0);
1128         drm_object_attach_property(&connector->base,
1129                                    dev->mode_config.suggested_x_property, 0);
1130         drm_object_attach_property(&connector->base,
1131                                    dev->mode_config.suggested_y_property, 0);
1132         return 0;
1133 }
1134 
1135 static struct drm_framebuffer *
1136 qxl_user_framebuffer_create(struct drm_device *dev,
1137                             struct drm_file *file_priv,
1138                             const struct drm_mode_fb_cmd2 *mode_cmd)
1139 {
1140         return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1141                                             &qxl_fb_funcs);
1142 }
1143 
1144 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1145         .fb_create = qxl_user_framebuffer_create,
1146         .atomic_check = drm_atomic_helper_check,
1147         .atomic_commit = drm_atomic_helper_commit,
1148 };
1149 
1150 int qxl_create_monitors_object(struct qxl_device *qdev)
1151 {
1152         int ret;
1153         struct drm_gem_object *gobj;
1154         int monitors_config_size = sizeof(struct qxl_monitors_config) +
1155                 qxl_num_crtc * sizeof(struct qxl_head);
1156 
1157         ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1158                                     QXL_GEM_DOMAIN_VRAM,
1159                                     false, false, NULL, &gobj);
1160         if (ret) {
1161                 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1162                 return -ENOMEM;
1163         }
1164         qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1165 
1166         ret = qxl_bo_pin(qdev->monitors_config_bo);
1167         if (ret)
1168                 return ret;
1169 
1170         qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1171 
1172         qdev->monitors_config = qdev->monitors_config_bo->kptr;
1173         qdev->ram_header->monitors_config =
1174                 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1175 
1176         memset(qdev->monitors_config, 0, monitors_config_size);
1177         qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1178                                    GFP_KERNEL);
1179         if (!qdev->dumb_heads) {
1180                 qxl_destroy_monitors_object(qdev);
1181                 return -ENOMEM;
1182         }
1183         return 0;
1184 }
1185 
1186 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1187 {
1188         int ret;
1189 
1190         qdev->monitors_config = NULL;
1191         qdev->ram_header->monitors_config = 0;
1192 
1193         qxl_bo_kunmap(qdev->monitors_config_bo);
1194         ret = qxl_bo_unpin(qdev->monitors_config_bo);
1195         if (ret)
1196                 return ret;
1197 
1198         qxl_bo_unref(&qdev->monitors_config_bo);
1199         return 0;
1200 }
1201 
1202 int qxl_modeset_init(struct qxl_device *qdev)
1203 {
1204         int i;
1205         int ret;
1206 
1207         drm_mode_config_init(&qdev->ddev);
1208 
1209         ret = qxl_create_monitors_object(qdev);
1210         if (ret)
1211                 return ret;
1212 
1213         qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1214 
1215         /* modes will be validated against the framebuffer size */
1216         qdev->ddev.mode_config.min_width = 0;
1217         qdev->ddev.mode_config.min_height = 0;
1218         qdev->ddev.mode_config.max_width = 8192;
1219         qdev->ddev.mode_config.max_height = 8192;
1220 
1221         qdev->ddev.mode_config.fb_base = qdev->vram_base;
1222 
1223         drm_mode_create_suggested_offset_properties(&qdev->ddev);
1224         qxl_mode_create_hotplug_mode_update_property(qdev);
1225 
1226         for (i = 0 ; i < qxl_num_crtc; ++i) {
1227                 qdev_crtc_init(&qdev->ddev, i);
1228                 qdev_output_init(&qdev->ddev, i);
1229         }
1230 
1231         qxl_display_read_client_monitors_config(qdev);
1232 
1233         drm_mode_config_reset(&qdev->ddev);
1234         return 0;
1235 }
1236 
1237 void qxl_modeset_fini(struct qxl_device *qdev)
1238 {
1239         qxl_destroy_monitors_object(qdev);
1240         drm_mode_config_cleanup(&qdev->ddev);
1241 }
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root/drivers/gpu/drm/qxl/qxl_display.c

DEFINITIONS
