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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 527 qxl_release_fence_buffer_objects(release); 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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 669 qxl_release_fence_buffer_objects(release); 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_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 717 qxl_release_fence_buffer_objects(release); 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 } 1242