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_atomic.h> 28 #include <drm/drm_atomic_helper.h> 29 #include <drm/drm_gem_framebuffer_helper.h> 30 #include <drm/drm_plane_helper.h> 31 #include <drm/drm_probe_helper.h> 32 33 #include "qxl_drv.h" 34 #include "qxl_object.h" 35 36 static bool qxl_head_enabled(struct qxl_head *head) 37 { 38 return head->width && head->height; 39 } 40 41 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev, 42 unsigned int count) 43 { 44 if (qdev->client_monitors_config && 45 count > qdev->client_monitors_config->count) { 46 kfree(qdev->client_monitors_config); 47 qdev->client_monitors_config = NULL; 48 } 49 if (!qdev->client_monitors_config) { 50 qdev->client_monitors_config = kzalloc( 51 struct_size(qdev->client_monitors_config, 52 heads, count), GFP_KERNEL); 53 if (!qdev->client_monitors_config) 54 return -ENOMEM; 55 } 56 qdev->client_monitors_config->count = count; 57 return 0; 58 } 59 60 enum { 61 MONITORS_CONFIG_MODIFIED, 62 MONITORS_CONFIG_UNCHANGED, 63 MONITORS_CONFIG_BAD_CRC, 64 MONITORS_CONFIG_ERROR, 65 }; 66 67 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) 68 { 69 int i; 70 int num_monitors; 71 uint32_t crc; 72 int status = MONITORS_CONFIG_UNCHANGED; 73 74 num_monitors = qdev->rom->client_monitors_config.count; 75 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config, 76 sizeof(qdev->rom->client_monitors_config)); 77 if (crc != qdev->rom->client_monitors_config_crc) 78 return MONITORS_CONFIG_BAD_CRC; 79 if (!num_monitors) { 80 DRM_DEBUG_KMS("no client monitors configured\n"); 81 return status; 82 } 83 if (num_monitors > qxl_num_crtc) { 84 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", 85 qxl_num_crtc, num_monitors); 86 num_monitors = qxl_num_crtc; 87 } else { 88 num_monitors = qdev->rom->client_monitors_config.count; 89 } 90 if (qdev->client_monitors_config 91 && (num_monitors != qdev->client_monitors_config->count)) { 92 status = MONITORS_CONFIG_MODIFIED; 93 } 94 if (qxl_alloc_client_monitors_config(qdev, num_monitors)) { 95 status = MONITORS_CONFIG_ERROR; 96 return status; 97 } 98 /* we copy max from the client but it isn't used */ 99 qdev->client_monitors_config->max_allowed = qxl_num_crtc; 100 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) { 101 struct qxl_urect *c_rect = 102 &qdev->rom->client_monitors_config.heads[i]; 103 struct qxl_head *client_head = 104 &qdev->client_monitors_config->heads[i]; 105 if (client_head->x != c_rect->left) { 106 client_head->x = c_rect->left; 107 status = MONITORS_CONFIG_MODIFIED; 108 } 109 if (client_head->y != c_rect->top) { 110 client_head->y = c_rect->top; 111 status = MONITORS_CONFIG_MODIFIED; 112 } 113 if (client_head->width != c_rect->right - c_rect->left) { 114 client_head->width = c_rect->right - c_rect->left; 115 status = MONITORS_CONFIG_MODIFIED; 116 } 117 if (client_head->height != c_rect->bottom - c_rect->top) { 118 client_head->height = c_rect->bottom - c_rect->top; 119 status = MONITORS_CONFIG_MODIFIED; 120 } 121 if (client_head->surface_id != 0) { 122 client_head->surface_id = 0; 123 status = MONITORS_CONFIG_MODIFIED; 124 } 125 if (client_head->id != i) { 126 client_head->id = i; 127 status = MONITORS_CONFIG_MODIFIED; 128 } 129 if (client_head->flags != 0) { 130 client_head->flags = 0; 131 status = MONITORS_CONFIG_MODIFIED; 132 } 133 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height, 134 client_head->x, client_head->y); 135 } 136 137 return status; 138 } 139 140 static void qxl_update_offset_props(struct qxl_device *qdev) 141 { 142 struct drm_device *dev = &qdev->ddev; 143 struct drm_connector *connector; 144 struct qxl_output *output; 145 struct qxl_head *head; 146 147 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 148 output = drm_connector_to_qxl_output(connector); 149 150 head = &qdev->client_monitors_config->heads[output->index]; 151 152 drm_object_property_set_value(&connector->base, 153 dev->mode_config.suggested_x_property, head->x); 154 drm_object_property_set_value(&connector->base, 155 dev->mode_config.suggested_y_property, head->y); 156 } 157 } 158 159 void qxl_display_read_client_monitors_config(struct qxl_device *qdev) 160 { 161 struct drm_device *dev = &qdev->ddev; 162 int status, retries; 163 164 for (retries = 0; retries < 10; retries++) { 165 status = qxl_display_copy_rom_client_monitors_config(qdev); 166 if (status != MONITORS_CONFIG_BAD_CRC) 167 break; 168 udelay(5); 169 } 170 if (status == MONITORS_CONFIG_ERROR) { 171 DRM_DEBUG_KMS("ignoring client monitors config: error"); 172 return; 173 } 174 if (status == MONITORS_CONFIG_BAD_CRC) { 175 DRM_DEBUG_KMS("ignoring client monitors config: bad crc"); 176 return; 177 } 178 if (status == MONITORS_CONFIG_UNCHANGED) { 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_check_mode(struct qxl_device *qdev, 194 unsigned int width, 195 unsigned int height) 196 { 197 unsigned int stride; 198 unsigned int size; 199 200 if (check_mul_overflow(width, 4u, &stride)) 201 return -EINVAL; 202 if (check_mul_overflow(stride, height, &size)) 203 return -EINVAL; 204 if (size > qdev->vram_size) 205 return -ENOMEM; 206 return 0; 207 } 208 209 static int qxl_check_framebuffer(struct qxl_device *qdev, 210 struct qxl_bo *bo) 211 { 212 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height); 213 } 214 215 static int qxl_add_mode(struct drm_connector *connector, 216 unsigned int width, 217 unsigned int height, 218 bool preferred) 219 { 220 struct drm_device *dev = connector->dev; 221 struct qxl_device *qdev = dev->dev_private; 222 struct drm_display_mode *mode = NULL; 223 int rc; 224 225 rc = qxl_check_mode(qdev, width, height); 226 if (rc != 0) 227 return 0; 228 229 mode = drm_cvt_mode(dev, width, height, 60, false, false, false); 230 if (preferred) 231 mode->type |= DRM_MODE_TYPE_PREFERRED; 232 mode->hdisplay = width; 233 mode->vdisplay = height; 234 drm_mode_set_name(mode); 235 drm_mode_probed_add(connector, mode); 236 return 1; 237 } 238 239 static int qxl_add_monitors_config_modes(struct drm_connector *connector) 240 { 241 struct drm_device *dev = connector->dev; 242 struct qxl_device *qdev = dev->dev_private; 243 struct qxl_output *output = drm_connector_to_qxl_output(connector); 244 int h = output->index; 245 struct qxl_head *head; 246 247 if (!qdev->monitors_config) 248 return 0; 249 if (h >= qxl_num_crtc) 250 return 0; 251 if (!qdev->client_monitors_config) 252 return 0; 253 if (h >= qdev->client_monitors_config->count) 254 return 0; 255 256 head = &qdev->client_monitors_config->heads[h]; 257 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height); 258 259 return qxl_add_mode(connector, head->width, head->height, true); 260 } 261 262 static struct mode_size { 263 int w; 264 int h; 265 } extra_modes[] = { 266 { 720, 480}, 267 {1152, 768}, 268 {1280, 854}, 269 }; 270 271 static int qxl_add_extra_modes(struct drm_connector *connector) 272 { 273 int i, ret = 0; 274 275 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) 276 ret += qxl_add_mode(connector, 277 extra_modes[i].w, 278 extra_modes[i].h, 279 false); 280 return ret; 281 } 282 283 static void qxl_send_monitors_config(struct qxl_device *qdev) 284 { 285 int i; 286 287 BUG_ON(!qdev->ram_header->monitors_config); 288 289 if (qdev->monitors_config->count == 0) 290 return; 291 292 for (i = 0 ; i < qdev->monitors_config->count ; ++i) { 293 struct qxl_head *head = &qdev->monitors_config->heads[i]; 294 295 if (head->y > 8192 || head->x > 8192 || 296 head->width > 8192 || head->height > 8192) { 297 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n", 298 i, head->width, head->height, 299 head->x, head->y); 300 return; 301 } 302 } 303 qxl_io_monitors_config(qdev); 304 } 305 306 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, 307 const char *reason) 308 { 309 struct drm_device *dev = crtc->dev; 310 struct qxl_device *qdev = dev->dev_private; 311 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc); 312 struct qxl_head head; 313 int oldcount, i = qcrtc->index; 314 315 if (!qdev->primary_bo) { 316 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason); 317 return; 318 } 319 320 if (!qdev->monitors_config || qxl_num_crtc <= i) 321 return; 322 323 head.id = i; 324 head.flags = 0; 325 oldcount = qdev->monitors_config->count; 326 if (crtc->state->active) { 327 struct drm_display_mode *mode = &crtc->mode; 328 329 head.width = mode->hdisplay; 330 head.height = mode->vdisplay; 331 head.x = crtc->x; 332 head.y = crtc->y; 333 if (qdev->monitors_config->count < i + 1) 334 qdev->monitors_config->count = i + 1; 335 if (qdev->primary_bo == qdev->dumb_shadow_bo) 336 head.x += qdev->dumb_heads[i].x; 337 } else if (i > 0) { 338 head.width = 0; 339 head.height = 0; 340 head.x = 0; 341 head.y = 0; 342 if (qdev->monitors_config->count == i + 1) 343 qdev->monitors_config->count = i; 344 } else { 345 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); 346 return; 347 } 348 349 if (head.width == qdev->monitors_config->heads[i].width && 350 head.height == qdev->monitors_config->heads[i].height && 351 head.x == qdev->monitors_config->heads[i].x && 352 head.y == qdev->monitors_config->heads[i].y && 353 oldcount == qdev->monitors_config->count) 354 return; 355 356 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", 357 i, head.width, head.height, head.x, head.y, 358 crtc->state->active ? "on" : "off", reason); 359 if (oldcount != qdev->monitors_config->count) 360 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", 361 oldcount, qdev->monitors_config->count, 362 qxl_num_crtc); 363 364 qdev->monitors_config->heads[i] = head; 365 qdev->monitors_config->max_allowed = qxl_num_crtc; 366 qxl_send_monitors_config(qdev); 367 } 368 369 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, 370 struct drm_crtc_state *old_crtc_state) 371 { 372 struct drm_device *dev = crtc->dev; 373 struct drm_pending_vblank_event *event; 374 unsigned long flags; 375 376 if (crtc->state && crtc->state->event) { 377 event = crtc->state->event; 378 crtc->state->event = NULL; 379 380 spin_lock_irqsave(&dev->event_lock, flags); 381 drm_crtc_send_vblank_event(crtc, event); 382 spin_unlock_irqrestore(&dev->event_lock, flags); 383 } 384 385 qxl_crtc_update_monitors_config(crtc, "flush"); 386 } 387 388 static void qxl_crtc_destroy(struct drm_crtc *crtc) 389 { 390 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 391 392 qxl_bo_unref(&qxl_crtc->cursor_bo); 393 drm_crtc_cleanup(crtc); 394 kfree(qxl_crtc); 395 } 396 397 static const struct drm_crtc_funcs qxl_crtc_funcs = { 398 .set_config = drm_atomic_helper_set_config, 399 .destroy = qxl_crtc_destroy, 400 .page_flip = drm_atomic_helper_page_flip, 401 .reset = drm_atomic_helper_crtc_reset, 402 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 403 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 404 }; 405 406 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 407 struct drm_file *file_priv, 408 unsigned int flags, unsigned int color, 409 struct drm_clip_rect *clips, 410 unsigned int num_clips) 411 { 412 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 413 struct qxl_device *qdev = fb->dev->dev_private; 414 struct drm_clip_rect norect; 415 struct qxl_bo *qobj; 416 bool is_primary; 417 int inc = 1; 418 419 drm_modeset_lock_all(fb->dev); 420 421 qobj = gem_to_qxl_bo(fb->obj[0]); 422 /* if we aren't primary surface ignore this */ 423 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 424 if (!is_primary) { 425 drm_modeset_unlock_all(fb->dev); 426 return 0; 427 } 428 429 if (!num_clips) { 430 num_clips = 1; 431 clips = &norect; 432 norect.x1 = norect.y1 = 0; 433 norect.x2 = fb->width; 434 norect.y2 = fb->height; 435 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 436 num_clips /= 2; 437 inc = 2; /* skip source rects */ 438 } 439 440 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, 441 clips, num_clips, inc, 0); 442 443 drm_modeset_unlock_all(fb->dev); 444 445 return 0; 446 } 447 448 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 449 .destroy = drm_gem_fb_destroy, 450 .dirty = qxl_framebuffer_surface_dirty, 451 .create_handle = drm_gem_fb_create_handle, 452 }; 453 454 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 455 struct drm_crtc_state *old_state) 456 { 457 qxl_crtc_update_monitors_config(crtc, "enable"); 458 } 459 460 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 461 struct drm_crtc_state *old_state) 462 { 463 qxl_crtc_update_monitors_config(crtc, "disable"); 464 } 465 466 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 467 .atomic_flush = qxl_crtc_atomic_flush, 468 .atomic_enable = qxl_crtc_atomic_enable, 469 .atomic_disable = qxl_crtc_atomic_disable, 470 }; 471 472 static int qxl_primary_atomic_check(struct drm_plane *plane, 473 struct drm_plane_state *state) 474 { 475 struct qxl_device *qdev = plane->dev->dev_private; 476 struct qxl_bo *bo; 477 478 if (!state->crtc || !state->fb) 479 return 0; 480 481 bo = gem_to_qxl_bo(state->fb->obj[0]); 482 483 return qxl_check_framebuffer(qdev, bo); 484 } 485 486 static int qxl_primary_apply_cursor(struct drm_plane *plane) 487 { 488 struct drm_device *dev = plane->dev; 489 struct qxl_device *qdev = dev->dev_private; 490 struct drm_framebuffer *fb = plane->state->fb; 491 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 492 struct qxl_cursor_cmd *cmd; 493 struct qxl_release *release; 494 int ret = 0; 495 496 if (!qcrtc->cursor_bo) 497 return 0; 498 499 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 500 QXL_RELEASE_CURSOR_CMD, 501 &release, NULL); 502 if (ret) 503 return ret; 504 505 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 506 if (ret) 507 goto out_free_release; 508 509 ret = qxl_release_reserve_list(release, false); 510 if (ret) 511 goto out_free_release; 512 513 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 514 cmd->type = QXL_CURSOR_SET; 515 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; 516 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; 517 518 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 519 520 cmd->u.set.visible = 1; 521 qxl_release_unmap(qdev, release, &cmd->release_info); 522 523 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 524 qxl_release_fence_buffer_objects(release); 525 526 return ret; 527 528 out_free_release: 529 qxl_release_free(qdev, release); 530 return ret; 531 } 532 533 static void qxl_primary_atomic_update(struct drm_plane *plane, 534 struct drm_plane_state *old_state) 535 { 536 struct qxl_device *qdev = plane->dev->dev_private; 537 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); 538 struct qxl_bo *primary; 539 struct drm_clip_rect norect = { 540 .x1 = 0, 541 .y1 = 0, 542 .x2 = plane->state->fb->width, 543 .y2 = plane->state->fb->height 544 }; 545 uint32_t dumb_shadow_offset = 0; 546 547 primary = bo->shadow ? bo->shadow : bo; 548 549 if (!primary->is_primary) { 550 if (qdev->primary_bo) 551 qxl_io_destroy_primary(qdev); 552 qxl_io_create_primary(qdev, primary); 553 qxl_primary_apply_cursor(plane); 554 } 555 556 if (bo->is_dumb) 557 dumb_shadow_offset = 558 qdev->dumb_heads[plane->state->crtc->index].x; 559 560 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, 561 dumb_shadow_offset); 562 } 563 564 static void qxl_primary_atomic_disable(struct drm_plane *plane, 565 struct drm_plane_state *old_state) 566 { 567 struct qxl_device *qdev = plane->dev->dev_private; 568 569 if (old_state->fb) { 570 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 571 572 if (bo->is_primary) { 573 qxl_io_destroy_primary(qdev); 574 bo->is_primary = false; 575 } 576 } 577 } 578 579 static void qxl_cursor_atomic_update(struct drm_plane *plane, 580 struct drm_plane_state *old_state) 581 { 582 struct drm_device *dev = plane->dev; 583 struct qxl_device *qdev = dev->dev_private; 584 struct drm_framebuffer *fb = plane->state->fb; 585 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 586 struct qxl_release *release; 587 struct qxl_cursor_cmd *cmd; 588 struct qxl_cursor *cursor; 589 struct drm_gem_object *obj; 590 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; 591 int ret; 592 void *user_ptr; 593 int size = 64*64*4; 594 595 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 596 QXL_RELEASE_CURSOR_CMD, 597 &release, NULL); 598 if (ret) 599 return; 600 601 if (fb != old_state->fb) { 602 obj = fb->obj[0]; 603 user_bo = gem_to_qxl_bo(obj); 604 605 /* pinning is done in the prepare/cleanup framevbuffer */ 606 ret = qxl_bo_kmap(user_bo, &user_ptr); 607 if (ret) 608 goto out_free_release; 609 610 ret = qxl_alloc_bo_reserved(qdev, release, 611 sizeof(struct qxl_cursor) + size, 612 &cursor_bo); 613 if (ret) 614 goto out_kunmap; 615 616 ret = qxl_bo_pin(cursor_bo); 617 if (ret) 618 goto out_free_bo; 619 620 ret = qxl_release_reserve_list(release, true); 621 if (ret) 622 goto out_unpin; 623 624 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); 625 if (ret) 626 goto out_backoff; 627 628 cursor->header.unique = 0; 629 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; 630 cursor->header.width = 64; 631 cursor->header.height = 64; 632 cursor->header.hot_spot_x = fb->hot_x; 633 cursor->header.hot_spot_y = fb->hot_y; 634 cursor->data_size = size; 635 cursor->chunk.next_chunk = 0; 636 cursor->chunk.prev_chunk = 0; 637 cursor->chunk.data_size = size; 638 memcpy(cursor->chunk.data, user_ptr, size); 639 qxl_bo_kunmap(cursor_bo); 640 qxl_bo_kunmap(user_bo); 641 642 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 643 cmd->u.set.visible = 1; 644 cmd->u.set.shape = qxl_bo_physical_address(qdev, 645 cursor_bo, 0); 646 cmd->type = QXL_CURSOR_SET; 647 648 old_cursor_bo = qcrtc->cursor_bo; 649 qcrtc->cursor_bo = cursor_bo; 650 cursor_bo = NULL; 651 } else { 652 653 ret = qxl_release_reserve_list(release, true); 654 if (ret) 655 goto out_free_release; 656 657 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 658 cmd->type = QXL_CURSOR_MOVE; 659 } 660 661 cmd->u.position.x = plane->state->crtc_x + fb->hot_x; 662 cmd->u.position.y = plane->state->crtc_y + fb->hot_y; 663 664 qxl_release_unmap(qdev, release, &cmd->release_info); 665 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 666 qxl_release_fence_buffer_objects(release); 667 668 if (old_cursor_bo != NULL) 669 qxl_bo_unpin(old_cursor_bo); 670 qxl_bo_unref(&old_cursor_bo); 671 qxl_bo_unref(&cursor_bo); 672 673 return; 674 675 out_backoff: 676 qxl_release_backoff_reserve_list(release); 677 out_unpin: 678 qxl_bo_unpin(cursor_bo); 679 out_free_bo: 680 qxl_bo_unref(&cursor_bo); 681 out_kunmap: 682 qxl_bo_kunmap(user_bo); 683 out_free_release: 684 qxl_release_free(qdev, release); 685 return; 686 687 } 688 689 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 690 struct drm_plane_state *old_state) 691 { 692 struct qxl_device *qdev = plane->dev->dev_private; 693 struct qxl_release *release; 694 struct qxl_cursor_cmd *cmd; 695 int ret; 696 697 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 698 QXL_RELEASE_CURSOR_CMD, 699 &release, NULL); 700 if (ret) 701 return; 702 703 ret = qxl_release_reserve_list(release, true); 704 if (ret) { 705 qxl_release_free(qdev, release); 706 return; 707 } 708 709 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 710 cmd->type = QXL_CURSOR_HIDE; 711 qxl_release_unmap(qdev, release, &cmd->release_info); 712 713 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 714 qxl_release_fence_buffer_objects(release); 715 } 716 717 static void qxl_update_dumb_head(struct qxl_device *qdev, 718 int index, struct qxl_bo *bo) 719 { 720 uint32_t width, height; 721 722 if (index >= qdev->monitors_config->max_allowed) 723 return; 724 725 if (bo && bo->is_dumb) { 726 width = bo->surf.width; 727 height = bo->surf.height; 728 } else { 729 width = 0; 730 height = 0; 731 } 732 733 if (qdev->dumb_heads[index].width == width && 734 qdev->dumb_heads[index].height == height) 735 return; 736 737 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 738 qdev->dumb_heads[index].width, 739 qdev->dumb_heads[index].height, 740 width, height); 741 qdev->dumb_heads[index].width = width; 742 qdev->dumb_heads[index].height = height; 743 } 744 745 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 746 struct qxl_surface *surf) 747 { 748 struct qxl_head *head; 749 int i; 750 751 memset(surf, 0, sizeof(*surf)); 752 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 753 head = qdev->dumb_heads + i; 754 head->x = surf->width; 755 surf->width += head->width; 756 if (surf->height < head->height) 757 surf->height = head->height; 758 } 759 if (surf->width < 64) 760 surf->width = 64; 761 if (surf->height < 64) 762 surf->height = 64; 763 surf->format = SPICE_SURFACE_FMT_32_xRGB; 764 surf->stride = surf->width * 4; 765 766 if (!qdev->dumb_shadow_bo || 767 qdev->dumb_shadow_bo->surf.width != surf->width || 768 qdev->dumb_shadow_bo->surf.height != surf->height) 769 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 770 } 771 772 static int qxl_plane_prepare_fb(struct drm_plane *plane, 773 struct drm_plane_state *new_state) 774 { 775 struct qxl_device *qdev = plane->dev->dev_private; 776 struct drm_gem_object *obj; 777 struct qxl_bo *user_bo; 778 struct qxl_surface surf; 779 int ret; 780 781 if (!new_state->fb) 782 return 0; 783 784 obj = new_state->fb->obj[0]; 785 user_bo = gem_to_qxl_bo(obj); 786 787 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 788 user_bo->is_dumb) { 789 qxl_update_dumb_head(qdev, new_state->crtc->index, 790 user_bo); 791 qxl_calc_dumb_shadow(qdev, &surf); 792 if (!qdev->dumb_shadow_bo || 793 qdev->dumb_shadow_bo->surf.width != surf.width || 794 qdev->dumb_shadow_bo->surf.height != surf.height) { 795 if (qdev->dumb_shadow_bo) { 796 drm_gem_object_put_unlocked 797 (&qdev->dumb_shadow_bo->gem_base); 798 qdev->dumb_shadow_bo = NULL; 799 } 800 qxl_bo_create(qdev, surf.height * surf.stride, 801 true, true, QXL_GEM_DOMAIN_SURFACE, &surf, 802 &qdev->dumb_shadow_bo); 803 } 804 if (user_bo->shadow != qdev->dumb_shadow_bo) { 805 if (user_bo->shadow) { 806 drm_gem_object_put_unlocked 807 (&user_bo->shadow->gem_base); 808 user_bo->shadow = NULL; 809 } 810 drm_gem_object_get(&qdev->dumb_shadow_bo->gem_base); 811 user_bo->shadow = qdev->dumb_shadow_bo; 812 } 813 } 814 815 ret = qxl_bo_pin(user_bo); 816 if (ret) 817 return ret; 818 819 return 0; 820 } 821 822 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 823 struct drm_plane_state *old_state) 824 { 825 struct drm_gem_object *obj; 826 struct qxl_bo *user_bo; 827 828 if (!old_state->fb) { 829 /* 830 * we never executed prepare_fb, so there's nothing to 831 * unpin. 832 */ 833 return; 834 } 835 836 obj = old_state->fb->obj[0]; 837 user_bo = gem_to_qxl_bo(obj); 838 qxl_bo_unpin(user_bo); 839 840 if (old_state->fb != plane->state->fb && user_bo->shadow) { 841 drm_gem_object_put_unlocked(&user_bo->shadow->gem_base); 842 user_bo->shadow = NULL; 843 } 844 } 845 846 static const uint32_t qxl_cursor_plane_formats[] = { 847 DRM_FORMAT_ARGB8888, 848 }; 849 850 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 851 .atomic_update = qxl_cursor_atomic_update, 852 .atomic_disable = qxl_cursor_atomic_disable, 853 .prepare_fb = qxl_plane_prepare_fb, 854 .cleanup_fb = qxl_plane_cleanup_fb, 855 }; 856 857 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 858 .update_plane = drm_atomic_helper_update_plane, 859 .disable_plane = drm_atomic_helper_disable_plane, 860 .destroy = drm_primary_helper_destroy, 861 .reset = drm_atomic_helper_plane_reset, 862 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 863 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 864 }; 865 866 static const uint32_t qxl_primary_plane_formats[] = { 867 DRM_FORMAT_XRGB8888, 868 DRM_FORMAT_ARGB8888, 869 }; 870 871 static const struct drm_plane_helper_funcs primary_helper_funcs = { 872 .atomic_check = qxl_primary_atomic_check, 873 .atomic_update = qxl_primary_atomic_update, 874 .atomic_disable = qxl_primary_atomic_disable, 875 .prepare_fb = qxl_plane_prepare_fb, 876 .cleanup_fb = qxl_plane_cleanup_fb, 877 }; 878 879 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 880 .update_plane = drm_atomic_helper_update_plane, 881 .disable_plane = drm_atomic_helper_disable_plane, 882 .destroy = drm_primary_helper_destroy, 883 .reset = drm_atomic_helper_plane_reset, 884 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 885 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 886 }; 887 888 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 889 unsigned int possible_crtcs, 890 enum drm_plane_type type) 891 { 892 const struct drm_plane_helper_funcs *helper_funcs = NULL; 893 struct drm_plane *plane; 894 const struct drm_plane_funcs *funcs; 895 const uint32_t *formats; 896 int num_formats; 897 int err; 898 899 if (type == DRM_PLANE_TYPE_PRIMARY) { 900 funcs = &qxl_primary_plane_funcs; 901 formats = qxl_primary_plane_formats; 902 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 903 helper_funcs = &primary_helper_funcs; 904 } else if (type == DRM_PLANE_TYPE_CURSOR) { 905 funcs = &qxl_cursor_plane_funcs; 906 formats = qxl_cursor_plane_formats; 907 helper_funcs = &qxl_cursor_helper_funcs; 908 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 909 } else { 910 return ERR_PTR(-EINVAL); 911 } 912 913 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 914 if (!plane) 915 return ERR_PTR(-ENOMEM); 916 917 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 918 funcs, formats, num_formats, 919 NULL, type, NULL); 920 if (err) 921 goto free_plane; 922 923 drm_plane_helper_add(plane, helper_funcs); 924 925 return plane; 926 927 free_plane: 928 kfree(plane); 929 return ERR_PTR(-EINVAL); 930 } 931 932 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 933 { 934 struct qxl_crtc *qxl_crtc; 935 struct drm_plane *primary, *cursor; 936 struct qxl_device *qdev = dev->dev_private; 937 int r; 938 939 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 940 if (!qxl_crtc) 941 return -ENOMEM; 942 943 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 944 if (IS_ERR(primary)) { 945 r = -ENOMEM; 946 goto free_mem; 947 } 948 949 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 950 if (IS_ERR(cursor)) { 951 r = -ENOMEM; 952 goto clean_primary; 953 } 954 955 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 956 &qxl_crtc_funcs, NULL); 957 if (r) 958 goto clean_cursor; 959 960 qxl_crtc->index = crtc_id; 961 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 962 return 0; 963 964 clean_cursor: 965 drm_plane_cleanup(cursor); 966 kfree(cursor); 967 clean_primary: 968 drm_plane_cleanup(primary); 969 kfree(primary); 970 free_mem: 971 kfree(qxl_crtc); 972 return r; 973 } 974 975 static int qxl_conn_get_modes(struct drm_connector *connector) 976 { 977 struct drm_device *dev = connector->dev; 978 struct qxl_device *qdev = dev->dev_private; 979 struct qxl_output *output = drm_connector_to_qxl_output(connector); 980 unsigned int pwidth = 1024; 981 unsigned int pheight = 768; 982 int ret = 0; 983 984 if (qdev->client_monitors_config) { 985 struct qxl_head *head; 986 head = &qdev->client_monitors_config->heads[output->index]; 987 if (head->width) 988 pwidth = head->width; 989 if (head->height) 990 pheight = head->height; 991 } 992 993 ret += drm_add_modes_noedid(connector, 8192, 8192); 994 ret += qxl_add_extra_modes(connector); 995 ret += qxl_add_monitors_config_modes(connector); 996 drm_set_preferred_mode(connector, pwidth, pheight); 997 return ret; 998 } 999 1000 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 1001 struct drm_display_mode *mode) 1002 { 1003 struct drm_device *ddev = connector->dev; 1004 struct qxl_device *qdev = ddev->dev_private; 1005 1006 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 1007 return MODE_BAD; 1008 1009 return MODE_OK; 1010 } 1011 1012 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1013 { 1014 struct qxl_output *qxl_output = 1015 drm_connector_to_qxl_output(connector); 1016 1017 DRM_DEBUG("\n"); 1018 return &qxl_output->enc; 1019 } 1020 1021 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = { 1022 }; 1023 1024 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1025 .get_modes = qxl_conn_get_modes, 1026 .mode_valid = qxl_conn_mode_valid, 1027 .best_encoder = qxl_best_encoder, 1028 }; 1029 1030 static enum drm_connector_status qxl_conn_detect( 1031 struct drm_connector *connector, 1032 bool force) 1033 { 1034 struct qxl_output *output = 1035 drm_connector_to_qxl_output(connector); 1036 struct drm_device *ddev = connector->dev; 1037 struct qxl_device *qdev = ddev->dev_private; 1038 bool connected = false; 1039 1040 /* The first monitor is always connected */ 1041 if (!qdev->client_monitors_config) { 1042 if (output->index == 0) 1043 connected = true; 1044 } else 1045 connected = qdev->client_monitors_config->count > output->index && 1046 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1047 1048 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1049 1050 return connected ? connector_status_connected 1051 : connector_status_disconnected; 1052 } 1053 1054 static void qxl_conn_destroy(struct drm_connector *connector) 1055 { 1056 struct qxl_output *qxl_output = 1057 drm_connector_to_qxl_output(connector); 1058 1059 drm_connector_unregister(connector); 1060 drm_connector_cleanup(connector); 1061 kfree(qxl_output); 1062 } 1063 1064 static const struct drm_connector_funcs qxl_connector_funcs = { 1065 .detect = qxl_conn_detect, 1066 .fill_modes = drm_helper_probe_single_connector_modes, 1067 .destroy = qxl_conn_destroy, 1068 .reset = drm_atomic_helper_connector_reset, 1069 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1070 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1071 }; 1072 1073 static void qxl_enc_destroy(struct drm_encoder *encoder) 1074 { 1075 drm_encoder_cleanup(encoder); 1076 } 1077 1078 static const struct drm_encoder_funcs qxl_enc_funcs = { 1079 .destroy = qxl_enc_destroy, 1080 }; 1081 1082 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1083 { 1084 if (qdev->hotplug_mode_update_property) 1085 return 0; 1086 1087 qdev->hotplug_mode_update_property = 1088 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1089 "hotplug_mode_update", 0, 1); 1090 1091 return 0; 1092 } 1093 1094 static int qdev_output_init(struct drm_device *dev, int num_output) 1095 { 1096 struct qxl_device *qdev = dev->dev_private; 1097 struct qxl_output *qxl_output; 1098 struct drm_connector *connector; 1099 struct drm_encoder *encoder; 1100 1101 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1102 if (!qxl_output) 1103 return -ENOMEM; 1104 1105 qxl_output->index = num_output; 1106 1107 connector = &qxl_output->base; 1108 encoder = &qxl_output->enc; 1109 drm_connector_init(dev, &qxl_output->base, 1110 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1111 1112 drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs, 1113 DRM_MODE_ENCODER_VIRTUAL, NULL); 1114 1115 /* we get HPD via client monitors config */ 1116 connector->polled = DRM_CONNECTOR_POLL_HPD; 1117 encoder->possible_crtcs = 1 << num_output; 1118 drm_connector_attach_encoder(&qxl_output->base, 1119 &qxl_output->enc); 1120 drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs); 1121 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1122 1123 drm_object_attach_property(&connector->base, 1124 qdev->hotplug_mode_update_property, 0); 1125 drm_object_attach_property(&connector->base, 1126 dev->mode_config.suggested_x_property, 0); 1127 drm_object_attach_property(&connector->base, 1128 dev->mode_config.suggested_y_property, 0); 1129 return 0; 1130 } 1131 1132 static struct drm_framebuffer * 1133 qxl_user_framebuffer_create(struct drm_device *dev, 1134 struct drm_file *file_priv, 1135 const struct drm_mode_fb_cmd2 *mode_cmd) 1136 { 1137 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1138 &qxl_fb_funcs); 1139 } 1140 1141 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1142 .fb_create = qxl_user_framebuffer_create, 1143 .atomic_check = drm_atomic_helper_check, 1144 .atomic_commit = drm_atomic_helper_commit, 1145 }; 1146 1147 int qxl_create_monitors_object(struct qxl_device *qdev) 1148 { 1149 int ret; 1150 struct drm_gem_object *gobj; 1151 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1152 qxl_num_crtc * sizeof(struct qxl_head); 1153 1154 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1155 QXL_GEM_DOMAIN_VRAM, 1156 false, false, NULL, &gobj); 1157 if (ret) { 1158 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1159 return -ENOMEM; 1160 } 1161 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1162 1163 ret = qxl_bo_pin(qdev->monitors_config_bo); 1164 if (ret) 1165 return ret; 1166 1167 qxl_bo_kmap(qdev->monitors_config_bo, NULL); 1168 1169 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1170 qdev->ram_header->monitors_config = 1171 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1172 1173 memset(qdev->monitors_config, 0, monitors_config_size); 1174 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1175 GFP_KERNEL); 1176 if (!qdev->dumb_heads) { 1177 qxl_destroy_monitors_object(qdev); 1178 return -ENOMEM; 1179 } 1180 return 0; 1181 } 1182 1183 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1184 { 1185 int ret; 1186 1187 qdev->monitors_config = NULL; 1188 qdev->ram_header->monitors_config = 0; 1189 1190 qxl_bo_kunmap(qdev->monitors_config_bo); 1191 ret = qxl_bo_unpin(qdev->monitors_config_bo); 1192 if (ret) 1193 return ret; 1194 1195 qxl_bo_unref(&qdev->monitors_config_bo); 1196 return 0; 1197 } 1198 1199 int qxl_modeset_init(struct qxl_device *qdev) 1200 { 1201 int i; 1202 int ret; 1203 1204 drm_mode_config_init(&qdev->ddev); 1205 1206 ret = qxl_create_monitors_object(qdev); 1207 if (ret) 1208 return ret; 1209 1210 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1211 1212 /* modes will be validated against the framebuffer size */ 1213 qdev->ddev.mode_config.min_width = 0; 1214 qdev->ddev.mode_config.min_height = 0; 1215 qdev->ddev.mode_config.max_width = 8192; 1216 qdev->ddev.mode_config.max_height = 8192; 1217 1218 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1219 1220 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1221 qxl_mode_create_hotplug_mode_update_property(qdev); 1222 1223 for (i = 0 ; i < qxl_num_crtc; ++i) { 1224 qdev_crtc_init(&qdev->ddev, i); 1225 qdev_output_init(&qdev->ddev, i); 1226 } 1227 1228 qxl_display_read_client_monitors_config(qdev); 1229 1230 drm_mode_config_reset(&qdev->ddev); 1231 return 0; 1232 } 1233 1234 void qxl_modeset_fini(struct qxl_device *qdev) 1235 { 1236 qxl_destroy_monitors_object(qdev); 1237 drm_mode_config_cleanup(&qdev->ddev); 1238 } 1239