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_simple_kms_helper.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 qxl_crtc_update_monitors_config(crtc, "flush"); 376 } 377 378 static void qxl_crtc_destroy(struct drm_crtc *crtc) 379 { 380 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 381 382 qxl_bo_unref(&qxl_crtc->cursor_bo); 383 drm_crtc_cleanup(crtc); 384 kfree(qxl_crtc); 385 } 386 387 static const struct drm_crtc_funcs qxl_crtc_funcs = { 388 .set_config = drm_atomic_helper_set_config, 389 .destroy = qxl_crtc_destroy, 390 .page_flip = drm_atomic_helper_page_flip, 391 .reset = drm_atomic_helper_crtc_reset, 392 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 393 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 394 }; 395 396 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 397 struct drm_file *file_priv, 398 unsigned int flags, unsigned int color, 399 struct drm_clip_rect *clips, 400 unsigned int num_clips) 401 { 402 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 403 struct qxl_device *qdev = fb->dev->dev_private; 404 struct drm_clip_rect norect; 405 struct qxl_bo *qobj; 406 bool is_primary; 407 int inc = 1; 408 409 drm_modeset_lock_all(fb->dev); 410 411 qobj = gem_to_qxl_bo(fb->obj[0]); 412 /* if we aren't primary surface ignore this */ 413 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 414 if (!is_primary) { 415 drm_modeset_unlock_all(fb->dev); 416 return 0; 417 } 418 419 if (!num_clips) { 420 num_clips = 1; 421 clips = &norect; 422 norect.x1 = norect.y1 = 0; 423 norect.x2 = fb->width; 424 norect.y2 = fb->height; 425 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 426 num_clips /= 2; 427 inc = 2; /* skip source rects */ 428 } 429 430 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, 431 clips, num_clips, inc, 0); 432 433 drm_modeset_unlock_all(fb->dev); 434 435 return 0; 436 } 437 438 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 439 .destroy = drm_gem_fb_destroy, 440 .dirty = qxl_framebuffer_surface_dirty, 441 .create_handle = drm_gem_fb_create_handle, 442 }; 443 444 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 445 struct drm_crtc_state *old_state) 446 { 447 qxl_crtc_update_monitors_config(crtc, "enable"); 448 } 449 450 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 451 struct drm_crtc_state *old_state) 452 { 453 qxl_crtc_update_monitors_config(crtc, "disable"); 454 } 455 456 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 457 .atomic_flush = qxl_crtc_atomic_flush, 458 .atomic_enable = qxl_crtc_atomic_enable, 459 .atomic_disable = qxl_crtc_atomic_disable, 460 }; 461 462 static int qxl_primary_atomic_check(struct drm_plane *plane, 463 struct drm_plane_state *state) 464 { 465 struct qxl_device *qdev = plane->dev->dev_private; 466 struct qxl_bo *bo; 467 468 if (!state->crtc || !state->fb) 469 return 0; 470 471 bo = gem_to_qxl_bo(state->fb->obj[0]); 472 473 return qxl_check_framebuffer(qdev, bo); 474 } 475 476 static int qxl_primary_apply_cursor(struct drm_plane *plane) 477 { 478 struct drm_device *dev = plane->dev; 479 struct qxl_device *qdev = dev->dev_private; 480 struct drm_framebuffer *fb = plane->state->fb; 481 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 482 struct qxl_cursor_cmd *cmd; 483 struct qxl_release *release; 484 int ret = 0; 485 486 if (!qcrtc->cursor_bo) 487 return 0; 488 489 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 490 QXL_RELEASE_CURSOR_CMD, 491 &release, NULL); 492 if (ret) 493 return ret; 494 495 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 496 if (ret) 497 goto out_free_release; 498 499 ret = qxl_release_reserve_list(release, false); 500 if (ret) 501 goto out_free_release; 502 503 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 504 cmd->type = QXL_CURSOR_SET; 505 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; 506 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; 507 508 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 509 510 cmd->u.set.visible = 1; 511 qxl_release_unmap(qdev, release, &cmd->release_info); 512 513 qxl_release_fence_buffer_objects(release); 514 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 515 516 return ret; 517 518 out_free_release: 519 qxl_release_free(qdev, release); 520 return ret; 521 } 522 523 static void qxl_primary_atomic_update(struct drm_plane *plane, 524 struct drm_plane_state *old_state) 525 { 526 struct qxl_device *qdev = plane->dev->dev_private; 527 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); 528 struct qxl_bo *primary; 529 struct drm_clip_rect norect = { 530 .x1 = 0, 531 .y1 = 0, 532 .x2 = plane->state->fb->width, 533 .y2 = plane->state->fb->height 534 }; 535 uint32_t dumb_shadow_offset = 0; 536 537 primary = bo->shadow ? bo->shadow : bo; 538 539 if (!primary->is_primary) { 540 if (qdev->primary_bo) 541 qxl_io_destroy_primary(qdev); 542 qxl_io_create_primary(qdev, primary); 543 qxl_primary_apply_cursor(plane); 544 } 545 546 if (bo->is_dumb) 547 dumb_shadow_offset = 548 qdev->dumb_heads[plane->state->crtc->index].x; 549 550 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, 551 dumb_shadow_offset); 552 } 553 554 static void qxl_primary_atomic_disable(struct drm_plane *plane, 555 struct drm_plane_state *old_state) 556 { 557 struct qxl_device *qdev = plane->dev->dev_private; 558 559 if (old_state->fb) { 560 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 561 562 if (bo->is_primary) { 563 qxl_io_destroy_primary(qdev); 564 bo->is_primary = false; 565 } 566 } 567 } 568 569 static void qxl_cursor_atomic_update(struct drm_plane *plane, 570 struct drm_plane_state *old_state) 571 { 572 struct drm_device *dev = plane->dev; 573 struct qxl_device *qdev = dev->dev_private; 574 struct drm_framebuffer *fb = plane->state->fb; 575 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 576 struct qxl_release *release; 577 struct qxl_cursor_cmd *cmd; 578 struct qxl_cursor *cursor; 579 struct drm_gem_object *obj; 580 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; 581 int ret; 582 void *user_ptr; 583 int size = 64*64*4; 584 585 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 586 QXL_RELEASE_CURSOR_CMD, 587 &release, NULL); 588 if (ret) 589 return; 590 591 if (fb != old_state->fb) { 592 obj = fb->obj[0]; 593 user_bo = gem_to_qxl_bo(obj); 594 595 /* pinning is done in the prepare/cleanup framevbuffer */ 596 ret = qxl_bo_kmap(user_bo, &user_ptr); 597 if (ret) 598 goto out_free_release; 599 600 ret = qxl_alloc_bo_reserved(qdev, release, 601 sizeof(struct qxl_cursor) + size, 602 &cursor_bo); 603 if (ret) 604 goto out_kunmap; 605 606 ret = qxl_bo_pin(cursor_bo); 607 if (ret) 608 goto out_free_bo; 609 610 ret = qxl_release_reserve_list(release, true); 611 if (ret) 612 goto out_unpin; 613 614 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); 615 if (ret) 616 goto out_backoff; 617 618 cursor->header.unique = 0; 619 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; 620 cursor->header.width = 64; 621 cursor->header.height = 64; 622 cursor->header.hot_spot_x = fb->hot_x; 623 cursor->header.hot_spot_y = fb->hot_y; 624 cursor->data_size = size; 625 cursor->chunk.next_chunk = 0; 626 cursor->chunk.prev_chunk = 0; 627 cursor->chunk.data_size = size; 628 memcpy(cursor->chunk.data, user_ptr, size); 629 qxl_bo_kunmap(cursor_bo); 630 qxl_bo_kunmap(user_bo); 631 632 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 633 cmd->u.set.visible = 1; 634 cmd->u.set.shape = qxl_bo_physical_address(qdev, 635 cursor_bo, 0); 636 cmd->type = QXL_CURSOR_SET; 637 638 old_cursor_bo = qcrtc->cursor_bo; 639 qcrtc->cursor_bo = cursor_bo; 640 cursor_bo = NULL; 641 } else { 642 643 ret = qxl_release_reserve_list(release, true); 644 if (ret) 645 goto out_free_release; 646 647 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 648 cmd->type = QXL_CURSOR_MOVE; 649 } 650 651 cmd->u.position.x = plane->state->crtc_x + fb->hot_x; 652 cmd->u.position.y = plane->state->crtc_y + fb->hot_y; 653 654 qxl_release_unmap(qdev, release, &cmd->release_info); 655 qxl_release_fence_buffer_objects(release); 656 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 657 658 if (old_cursor_bo != NULL) 659 qxl_bo_unpin(old_cursor_bo); 660 qxl_bo_unref(&old_cursor_bo); 661 qxl_bo_unref(&cursor_bo); 662 663 return; 664 665 out_backoff: 666 qxl_release_backoff_reserve_list(release); 667 out_unpin: 668 qxl_bo_unpin(cursor_bo); 669 out_free_bo: 670 qxl_bo_unref(&cursor_bo); 671 out_kunmap: 672 qxl_bo_kunmap(user_bo); 673 out_free_release: 674 qxl_release_free(qdev, release); 675 return; 676 677 } 678 679 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 680 struct drm_plane_state *old_state) 681 { 682 struct qxl_device *qdev = plane->dev->dev_private; 683 struct qxl_release *release; 684 struct qxl_cursor_cmd *cmd; 685 int ret; 686 687 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 688 QXL_RELEASE_CURSOR_CMD, 689 &release, NULL); 690 if (ret) 691 return; 692 693 ret = qxl_release_reserve_list(release, true); 694 if (ret) { 695 qxl_release_free(qdev, release); 696 return; 697 } 698 699 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 700 cmd->type = QXL_CURSOR_HIDE; 701 qxl_release_unmap(qdev, release, &cmd->release_info); 702 703 qxl_release_fence_buffer_objects(release); 704 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 705 } 706 707 static void qxl_update_dumb_head(struct qxl_device *qdev, 708 int index, struct qxl_bo *bo) 709 { 710 uint32_t width, height; 711 712 if (index >= qdev->monitors_config->max_allowed) 713 return; 714 715 if (bo && bo->is_dumb) { 716 width = bo->surf.width; 717 height = bo->surf.height; 718 } else { 719 width = 0; 720 height = 0; 721 } 722 723 if (qdev->dumb_heads[index].width == width && 724 qdev->dumb_heads[index].height == height) 725 return; 726 727 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 728 qdev->dumb_heads[index].width, 729 qdev->dumb_heads[index].height, 730 width, height); 731 qdev->dumb_heads[index].width = width; 732 qdev->dumb_heads[index].height = height; 733 } 734 735 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 736 struct qxl_surface *surf) 737 { 738 struct qxl_head *head; 739 int i; 740 741 memset(surf, 0, sizeof(*surf)); 742 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 743 head = qdev->dumb_heads + i; 744 head->x = surf->width; 745 surf->width += head->width; 746 if (surf->height < head->height) 747 surf->height = head->height; 748 } 749 if (surf->width < 64) 750 surf->width = 64; 751 if (surf->height < 64) 752 surf->height = 64; 753 surf->format = SPICE_SURFACE_FMT_32_xRGB; 754 surf->stride = surf->width * 4; 755 756 if (!qdev->dumb_shadow_bo || 757 qdev->dumb_shadow_bo->surf.width != surf->width || 758 qdev->dumb_shadow_bo->surf.height != surf->height) 759 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 760 } 761 762 static int qxl_plane_prepare_fb(struct drm_plane *plane, 763 struct drm_plane_state *new_state) 764 { 765 struct qxl_device *qdev = plane->dev->dev_private; 766 struct drm_gem_object *obj; 767 struct qxl_bo *user_bo; 768 struct qxl_surface surf; 769 int ret; 770 771 if (!new_state->fb) 772 return 0; 773 774 obj = new_state->fb->obj[0]; 775 user_bo = gem_to_qxl_bo(obj); 776 777 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 778 user_bo->is_dumb) { 779 qxl_update_dumb_head(qdev, new_state->crtc->index, 780 user_bo); 781 qxl_calc_dumb_shadow(qdev, &surf); 782 if (!qdev->dumb_shadow_bo || 783 qdev->dumb_shadow_bo->surf.width != surf.width || 784 qdev->dumb_shadow_bo->surf.height != surf.height) { 785 if (qdev->dumb_shadow_bo) { 786 drm_gem_object_put_unlocked 787 (&qdev->dumb_shadow_bo->tbo.base); 788 qdev->dumb_shadow_bo = NULL; 789 } 790 qxl_bo_create(qdev, surf.height * surf.stride, 791 true, true, QXL_GEM_DOMAIN_SURFACE, &surf, 792 &qdev->dumb_shadow_bo); 793 } 794 if (user_bo->shadow != qdev->dumb_shadow_bo) { 795 if (user_bo->shadow) { 796 drm_gem_object_put_unlocked 797 (&user_bo->shadow->tbo.base); 798 user_bo->shadow = NULL; 799 } 800 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 801 user_bo->shadow = qdev->dumb_shadow_bo; 802 } 803 } 804 805 ret = qxl_bo_pin(user_bo); 806 if (ret) 807 return ret; 808 809 return 0; 810 } 811 812 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 813 struct drm_plane_state *old_state) 814 { 815 struct drm_gem_object *obj; 816 struct qxl_bo *user_bo; 817 818 if (!old_state->fb) { 819 /* 820 * we never executed prepare_fb, so there's nothing to 821 * unpin. 822 */ 823 return; 824 } 825 826 obj = old_state->fb->obj[0]; 827 user_bo = gem_to_qxl_bo(obj); 828 qxl_bo_unpin(user_bo); 829 830 if (old_state->fb != plane->state->fb && user_bo->shadow) { 831 drm_gem_object_put_unlocked(&user_bo->shadow->tbo.base); 832 user_bo->shadow = NULL; 833 } 834 } 835 836 static const uint32_t qxl_cursor_plane_formats[] = { 837 DRM_FORMAT_ARGB8888, 838 }; 839 840 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 841 .atomic_update = qxl_cursor_atomic_update, 842 .atomic_disable = qxl_cursor_atomic_disable, 843 .prepare_fb = qxl_plane_prepare_fb, 844 .cleanup_fb = qxl_plane_cleanup_fb, 845 }; 846 847 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 848 .update_plane = drm_atomic_helper_update_plane, 849 .disable_plane = drm_atomic_helper_disable_plane, 850 .destroy = drm_primary_helper_destroy, 851 .reset = drm_atomic_helper_plane_reset, 852 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 853 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 854 }; 855 856 static const uint32_t qxl_primary_plane_formats[] = { 857 DRM_FORMAT_XRGB8888, 858 DRM_FORMAT_ARGB8888, 859 }; 860 861 static const struct drm_plane_helper_funcs primary_helper_funcs = { 862 .atomic_check = qxl_primary_atomic_check, 863 .atomic_update = qxl_primary_atomic_update, 864 .atomic_disable = qxl_primary_atomic_disable, 865 .prepare_fb = qxl_plane_prepare_fb, 866 .cleanup_fb = qxl_plane_cleanup_fb, 867 }; 868 869 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 870 .update_plane = drm_atomic_helper_update_plane, 871 .disable_plane = drm_atomic_helper_disable_plane, 872 .destroy = drm_primary_helper_destroy, 873 .reset = drm_atomic_helper_plane_reset, 874 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 875 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 876 }; 877 878 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 879 unsigned int possible_crtcs, 880 enum drm_plane_type type) 881 { 882 const struct drm_plane_helper_funcs *helper_funcs = NULL; 883 struct drm_plane *plane; 884 const struct drm_plane_funcs *funcs; 885 const uint32_t *formats; 886 int num_formats; 887 int err; 888 889 if (type == DRM_PLANE_TYPE_PRIMARY) { 890 funcs = &qxl_primary_plane_funcs; 891 formats = qxl_primary_plane_formats; 892 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 893 helper_funcs = &primary_helper_funcs; 894 } else if (type == DRM_PLANE_TYPE_CURSOR) { 895 funcs = &qxl_cursor_plane_funcs; 896 formats = qxl_cursor_plane_formats; 897 helper_funcs = &qxl_cursor_helper_funcs; 898 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 899 } else { 900 return ERR_PTR(-EINVAL); 901 } 902 903 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 904 if (!plane) 905 return ERR_PTR(-ENOMEM); 906 907 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 908 funcs, formats, num_formats, 909 NULL, type, NULL); 910 if (err) 911 goto free_plane; 912 913 drm_plane_helper_add(plane, helper_funcs); 914 915 return plane; 916 917 free_plane: 918 kfree(plane); 919 return ERR_PTR(-EINVAL); 920 } 921 922 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 923 { 924 struct qxl_crtc *qxl_crtc; 925 struct drm_plane *primary, *cursor; 926 struct qxl_device *qdev = dev->dev_private; 927 int r; 928 929 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 930 if (!qxl_crtc) 931 return -ENOMEM; 932 933 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 934 if (IS_ERR(primary)) { 935 r = -ENOMEM; 936 goto free_mem; 937 } 938 939 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 940 if (IS_ERR(cursor)) { 941 r = -ENOMEM; 942 goto clean_primary; 943 } 944 945 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 946 &qxl_crtc_funcs, NULL); 947 if (r) 948 goto clean_cursor; 949 950 qxl_crtc->index = crtc_id; 951 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 952 return 0; 953 954 clean_cursor: 955 drm_plane_cleanup(cursor); 956 kfree(cursor); 957 clean_primary: 958 drm_plane_cleanup(primary); 959 kfree(primary); 960 free_mem: 961 kfree(qxl_crtc); 962 return r; 963 } 964 965 static int qxl_conn_get_modes(struct drm_connector *connector) 966 { 967 struct drm_device *dev = connector->dev; 968 struct qxl_device *qdev = dev->dev_private; 969 struct qxl_output *output = drm_connector_to_qxl_output(connector); 970 unsigned int pwidth = 1024; 971 unsigned int pheight = 768; 972 int ret = 0; 973 974 if (qdev->client_monitors_config) { 975 struct qxl_head *head; 976 head = &qdev->client_monitors_config->heads[output->index]; 977 if (head->width) 978 pwidth = head->width; 979 if (head->height) 980 pheight = head->height; 981 } 982 983 ret += drm_add_modes_noedid(connector, 8192, 8192); 984 ret += qxl_add_extra_modes(connector); 985 ret += qxl_add_monitors_config_modes(connector); 986 drm_set_preferred_mode(connector, pwidth, pheight); 987 return ret; 988 } 989 990 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 991 struct drm_display_mode *mode) 992 { 993 struct drm_device *ddev = connector->dev; 994 struct qxl_device *qdev = ddev->dev_private; 995 996 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 997 return MODE_BAD; 998 999 return MODE_OK; 1000 } 1001 1002 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1003 { 1004 struct qxl_output *qxl_output = 1005 drm_connector_to_qxl_output(connector); 1006 1007 DRM_DEBUG("\n"); 1008 return &qxl_output->enc; 1009 } 1010 1011 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1012 .get_modes = qxl_conn_get_modes, 1013 .mode_valid = qxl_conn_mode_valid, 1014 .best_encoder = qxl_best_encoder, 1015 }; 1016 1017 static enum drm_connector_status qxl_conn_detect( 1018 struct drm_connector *connector, 1019 bool force) 1020 { 1021 struct qxl_output *output = 1022 drm_connector_to_qxl_output(connector); 1023 struct drm_device *ddev = connector->dev; 1024 struct qxl_device *qdev = ddev->dev_private; 1025 bool connected = false; 1026 1027 /* The first monitor is always connected */ 1028 if (!qdev->client_monitors_config) { 1029 if (output->index == 0) 1030 connected = true; 1031 } else 1032 connected = qdev->client_monitors_config->count > output->index && 1033 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1034 1035 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1036 1037 return connected ? connector_status_connected 1038 : connector_status_disconnected; 1039 } 1040 1041 static void qxl_conn_destroy(struct drm_connector *connector) 1042 { 1043 struct qxl_output *qxl_output = 1044 drm_connector_to_qxl_output(connector); 1045 1046 drm_connector_unregister(connector); 1047 drm_connector_cleanup(connector); 1048 kfree(qxl_output); 1049 } 1050 1051 static const struct drm_connector_funcs qxl_connector_funcs = { 1052 .detect = qxl_conn_detect, 1053 .fill_modes = drm_helper_probe_single_connector_modes, 1054 .destroy = qxl_conn_destroy, 1055 .reset = drm_atomic_helper_connector_reset, 1056 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1057 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1058 }; 1059 1060 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1061 { 1062 if (qdev->hotplug_mode_update_property) 1063 return 0; 1064 1065 qdev->hotplug_mode_update_property = 1066 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1067 "hotplug_mode_update", 0, 1); 1068 1069 return 0; 1070 } 1071 1072 static int qdev_output_init(struct drm_device *dev, int num_output) 1073 { 1074 struct qxl_device *qdev = dev->dev_private; 1075 struct qxl_output *qxl_output; 1076 struct drm_connector *connector; 1077 struct drm_encoder *encoder; 1078 int ret; 1079 1080 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1081 if (!qxl_output) 1082 return -ENOMEM; 1083 1084 qxl_output->index = num_output; 1085 1086 connector = &qxl_output->base; 1087 encoder = &qxl_output->enc; 1088 drm_connector_init(dev, &qxl_output->base, 1089 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1090 1091 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1092 DRM_MODE_ENCODER_VIRTUAL); 1093 if (ret) { 1094 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1095 ret); 1096 goto err_drm_connector_cleanup; 1097 } 1098 1099 /* we get HPD via client monitors config */ 1100 connector->polled = DRM_CONNECTOR_POLL_HPD; 1101 encoder->possible_crtcs = 1 << num_output; 1102 drm_connector_attach_encoder(&qxl_output->base, 1103 &qxl_output->enc); 1104 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1105 1106 drm_object_attach_property(&connector->base, 1107 qdev->hotplug_mode_update_property, 0); 1108 drm_object_attach_property(&connector->base, 1109 dev->mode_config.suggested_x_property, 0); 1110 drm_object_attach_property(&connector->base, 1111 dev->mode_config.suggested_y_property, 0); 1112 return 0; 1113 1114 err_drm_connector_cleanup: 1115 drm_connector_cleanup(&qxl_output->base); 1116 kfree(qxl_output); 1117 return ret; 1118 } 1119 1120 static struct drm_framebuffer * 1121 qxl_user_framebuffer_create(struct drm_device *dev, 1122 struct drm_file *file_priv, 1123 const struct drm_mode_fb_cmd2 *mode_cmd) 1124 { 1125 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1126 &qxl_fb_funcs); 1127 } 1128 1129 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1130 .fb_create = qxl_user_framebuffer_create, 1131 .atomic_check = drm_atomic_helper_check, 1132 .atomic_commit = drm_atomic_helper_commit, 1133 }; 1134 1135 int qxl_create_monitors_object(struct qxl_device *qdev) 1136 { 1137 int ret; 1138 struct drm_gem_object *gobj; 1139 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1140 qxl_num_crtc * sizeof(struct qxl_head); 1141 1142 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1143 QXL_GEM_DOMAIN_VRAM, 1144 false, false, NULL, &gobj); 1145 if (ret) { 1146 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1147 return -ENOMEM; 1148 } 1149 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1150 1151 ret = qxl_bo_pin(qdev->monitors_config_bo); 1152 if (ret) 1153 return ret; 1154 1155 qxl_bo_kmap(qdev->monitors_config_bo, NULL); 1156 1157 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1158 qdev->ram_header->monitors_config = 1159 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1160 1161 memset(qdev->monitors_config, 0, monitors_config_size); 1162 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1163 GFP_KERNEL); 1164 if (!qdev->dumb_heads) { 1165 qxl_destroy_monitors_object(qdev); 1166 return -ENOMEM; 1167 } 1168 return 0; 1169 } 1170 1171 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1172 { 1173 int ret; 1174 1175 qdev->monitors_config = NULL; 1176 qdev->ram_header->monitors_config = 0; 1177 1178 qxl_bo_kunmap(qdev->monitors_config_bo); 1179 ret = qxl_bo_unpin(qdev->monitors_config_bo); 1180 if (ret) 1181 return ret; 1182 1183 qxl_bo_unref(&qdev->monitors_config_bo); 1184 return 0; 1185 } 1186 1187 int qxl_modeset_init(struct qxl_device *qdev) 1188 { 1189 int i; 1190 int ret; 1191 1192 drm_mode_config_init(&qdev->ddev); 1193 1194 ret = qxl_create_monitors_object(qdev); 1195 if (ret) 1196 return ret; 1197 1198 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1199 1200 /* modes will be validated against the framebuffer size */ 1201 qdev->ddev.mode_config.min_width = 0; 1202 qdev->ddev.mode_config.min_height = 0; 1203 qdev->ddev.mode_config.max_width = 8192; 1204 qdev->ddev.mode_config.max_height = 8192; 1205 1206 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1207 1208 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1209 qxl_mode_create_hotplug_mode_update_property(qdev); 1210 1211 for (i = 0 ; i < qxl_num_crtc; ++i) { 1212 qdev_crtc_init(&qdev->ddev, i); 1213 qdev_output_init(&qdev->ddev, i); 1214 } 1215 1216 qxl_display_read_client_monitors_config(qdev); 1217 1218 drm_mode_config_reset(&qdev->ddev); 1219 return 0; 1220 } 1221 1222 void qxl_modeset_fini(struct qxl_device *qdev) 1223 { 1224 qxl_destroy_monitors_object(qdev); 1225 drm_mode_config_cleanup(&qdev->ddev); 1226 } 1227