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 struct drm_modeset_acquire_ctx ctx; 166 int status, retries, ret; 167 168 for (retries = 0; retries < 10; retries++) { 169 status = qxl_display_copy_rom_client_monitors_config(qdev); 170 if (status != MONITORS_CONFIG_BAD_CRC) 171 break; 172 udelay(5); 173 } 174 if (status == MONITORS_CONFIG_ERROR) { 175 DRM_DEBUG_KMS("ignoring client monitors config: error"); 176 return; 177 } 178 if (status == MONITORS_CONFIG_BAD_CRC) { 179 DRM_DEBUG_KMS("ignoring client monitors config: bad crc"); 180 return; 181 } 182 if (status == MONITORS_CONFIG_UNCHANGED) { 183 DRM_DEBUG_KMS("ignoring client monitors config: unchanged"); 184 return; 185 } 186 187 DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 188 qxl_update_offset_props(qdev); 189 DRM_MODESET_LOCK_ALL_END(ctx, ret); 190 if (!drm_helper_hpd_irq_event(dev)) { 191 /* notify that the monitor configuration changed, to 192 adjust at the arbitrary resolution */ 193 drm_kms_helper_hotplug_event(dev); 194 } 195 } 196 197 static int qxl_check_mode(struct qxl_device *qdev, 198 unsigned int width, 199 unsigned int height) 200 { 201 unsigned int stride; 202 unsigned int size; 203 204 if (check_mul_overflow(width, 4u, &stride)) 205 return -EINVAL; 206 if (check_mul_overflow(stride, height, &size)) 207 return -EINVAL; 208 if (size > qdev->vram_size) 209 return -ENOMEM; 210 return 0; 211 } 212 213 static int qxl_check_framebuffer(struct qxl_device *qdev, 214 struct qxl_bo *bo) 215 { 216 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height); 217 } 218 219 static int qxl_add_mode(struct drm_connector *connector, 220 unsigned int width, 221 unsigned int height, 222 bool preferred) 223 { 224 struct drm_device *dev = connector->dev; 225 struct qxl_device *qdev = to_qxl(dev); 226 struct drm_display_mode *mode = NULL; 227 int rc; 228 229 rc = qxl_check_mode(qdev, width, height); 230 if (rc != 0) 231 return 0; 232 233 mode = drm_cvt_mode(dev, width, height, 60, false, false, false); 234 if (preferred) 235 mode->type |= DRM_MODE_TYPE_PREFERRED; 236 mode->hdisplay = width; 237 mode->vdisplay = height; 238 drm_mode_set_name(mode); 239 drm_mode_probed_add(connector, mode); 240 return 1; 241 } 242 243 static int qxl_add_monitors_config_modes(struct drm_connector *connector) 244 { 245 struct drm_device *dev = connector->dev; 246 struct qxl_device *qdev = to_qxl(dev); 247 struct qxl_output *output = drm_connector_to_qxl_output(connector); 248 int h = output->index; 249 struct qxl_head *head; 250 251 if (!qdev->monitors_config) 252 return 0; 253 if (h >= qxl_num_crtc) 254 return 0; 255 if (!qdev->client_monitors_config) 256 return 0; 257 if (h >= qdev->client_monitors_config->count) 258 return 0; 259 260 head = &qdev->client_monitors_config->heads[h]; 261 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height); 262 263 return qxl_add_mode(connector, head->width, head->height, true); 264 } 265 266 static struct mode_size { 267 int w; 268 int h; 269 } extra_modes[] = { 270 { 720, 480}, 271 {1152, 768}, 272 {1280, 854}, 273 }; 274 275 static int qxl_add_extra_modes(struct drm_connector *connector) 276 { 277 int i, ret = 0; 278 279 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) 280 ret += qxl_add_mode(connector, 281 extra_modes[i].w, 282 extra_modes[i].h, 283 false); 284 return ret; 285 } 286 287 static void qxl_send_monitors_config(struct qxl_device *qdev) 288 { 289 int i; 290 291 BUG_ON(!qdev->ram_header->monitors_config); 292 293 if (qdev->monitors_config->count == 0) 294 return; 295 296 for (i = 0 ; i < qdev->monitors_config->count ; ++i) { 297 struct qxl_head *head = &qdev->monitors_config->heads[i]; 298 299 if (head->y > 8192 || head->x > 8192 || 300 head->width > 8192 || head->height > 8192) { 301 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n", 302 i, head->width, head->height, 303 head->x, head->y); 304 return; 305 } 306 } 307 qxl_io_monitors_config(qdev); 308 } 309 310 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, 311 const char *reason) 312 { 313 struct drm_device *dev = crtc->dev; 314 struct qxl_device *qdev = to_qxl(dev); 315 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc); 316 struct qxl_head head; 317 int oldcount, i = qcrtc->index; 318 319 if (!qdev->primary_bo) { 320 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason); 321 return; 322 } 323 324 if (!qdev->monitors_config || qxl_num_crtc <= i) 325 return; 326 327 head.id = i; 328 head.flags = 0; 329 oldcount = qdev->monitors_config->count; 330 if (crtc->state->active) { 331 struct drm_display_mode *mode = &crtc->mode; 332 333 head.width = mode->hdisplay; 334 head.height = mode->vdisplay; 335 head.x = crtc->x; 336 head.y = crtc->y; 337 if (qdev->monitors_config->count < i + 1) 338 qdev->monitors_config->count = i + 1; 339 if (qdev->primary_bo == qdev->dumb_shadow_bo) 340 head.x += qdev->dumb_heads[i].x; 341 } else if (i > 0) { 342 head.width = 0; 343 head.height = 0; 344 head.x = 0; 345 head.y = 0; 346 if (qdev->monitors_config->count == i + 1) 347 qdev->monitors_config->count = i; 348 } else { 349 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); 350 return; 351 } 352 353 if (head.width == qdev->monitors_config->heads[i].width && 354 head.height == qdev->monitors_config->heads[i].height && 355 head.x == qdev->monitors_config->heads[i].x && 356 head.y == qdev->monitors_config->heads[i].y && 357 oldcount == qdev->monitors_config->count) 358 return; 359 360 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", 361 i, head.width, head.height, head.x, head.y, 362 crtc->state->active ? "on" : "off", reason); 363 if (oldcount != qdev->monitors_config->count) 364 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", 365 oldcount, qdev->monitors_config->count, 366 qxl_num_crtc); 367 368 qdev->monitors_config->heads[i] = head; 369 qdev->monitors_config->max_allowed = qxl_num_crtc; 370 qxl_send_monitors_config(qdev); 371 } 372 373 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, 374 struct drm_crtc_state *old_crtc_state) 375 { 376 qxl_crtc_update_monitors_config(crtc, "flush"); 377 } 378 379 static void qxl_crtc_destroy(struct drm_crtc *crtc) 380 { 381 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 382 383 qxl_bo_unref(&qxl_crtc->cursor_bo); 384 drm_crtc_cleanup(crtc); 385 kfree(qxl_crtc); 386 } 387 388 static const struct drm_crtc_funcs qxl_crtc_funcs = { 389 .set_config = drm_atomic_helper_set_config, 390 .destroy = qxl_crtc_destroy, 391 .page_flip = drm_atomic_helper_page_flip, 392 .reset = drm_atomic_helper_crtc_reset, 393 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 394 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 395 }; 396 397 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 398 struct drm_file *file_priv, 399 unsigned int flags, unsigned int color, 400 struct drm_clip_rect *clips, 401 unsigned int num_clips) 402 { 403 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 404 struct qxl_device *qdev = to_qxl(fb->dev); 405 struct drm_clip_rect norect; 406 struct qxl_bo *qobj; 407 struct drm_modeset_acquire_ctx ctx; 408 bool is_primary; 409 int inc = 1, ret; 410 411 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 412 413 qobj = gem_to_qxl_bo(fb->obj[0]); 414 /* if we aren't primary surface ignore this */ 415 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 416 if (!is_primary) 417 goto out_lock_end; 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 out_lock_end: 434 DRM_MODESET_LOCK_ALL_END(ctx, ret); 435 436 return 0; 437 } 438 439 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 440 .destroy = drm_gem_fb_destroy, 441 .dirty = qxl_framebuffer_surface_dirty, 442 .create_handle = drm_gem_fb_create_handle, 443 }; 444 445 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 446 struct drm_crtc_state *old_state) 447 { 448 qxl_crtc_update_monitors_config(crtc, "enable"); 449 } 450 451 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 452 struct drm_crtc_state *old_state) 453 { 454 qxl_crtc_update_monitors_config(crtc, "disable"); 455 } 456 457 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 458 .atomic_flush = qxl_crtc_atomic_flush, 459 .atomic_enable = qxl_crtc_atomic_enable, 460 .atomic_disable = qxl_crtc_atomic_disable, 461 }; 462 463 static int qxl_primary_atomic_check(struct drm_plane *plane, 464 struct drm_plane_state *state) 465 { 466 struct qxl_device *qdev = to_qxl(plane->dev); 467 struct qxl_bo *bo; 468 469 if (!state->crtc || !state->fb) 470 return 0; 471 472 bo = gem_to_qxl_bo(state->fb->obj[0]); 473 474 return qxl_check_framebuffer(qdev, bo); 475 } 476 477 static int qxl_primary_apply_cursor(struct drm_plane *plane) 478 { 479 struct drm_device *dev = plane->dev; 480 struct qxl_device *qdev = to_qxl(dev); 481 struct drm_framebuffer *fb = plane->state->fb; 482 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 483 struct qxl_cursor_cmd *cmd; 484 struct qxl_release *release; 485 int ret = 0; 486 487 if (!qcrtc->cursor_bo) 488 return 0; 489 490 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 491 QXL_RELEASE_CURSOR_CMD, 492 &release, NULL); 493 if (ret) 494 return ret; 495 496 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 497 if (ret) 498 goto out_free_release; 499 500 ret = qxl_release_reserve_list(release, false); 501 if (ret) 502 goto out_free_release; 503 504 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 505 cmd->type = QXL_CURSOR_SET; 506 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; 507 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; 508 509 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 510 511 cmd->u.set.visible = 1; 512 qxl_release_unmap(qdev, release, &cmd->release_info); 513 514 qxl_release_fence_buffer_objects(release); 515 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 516 517 return ret; 518 519 out_free_release: 520 qxl_release_free(qdev, release); 521 return ret; 522 } 523 524 static void qxl_primary_atomic_update(struct drm_plane *plane, 525 struct drm_plane_state *old_state) 526 { 527 struct qxl_device *qdev = to_qxl(plane->dev); 528 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); 529 struct qxl_bo *primary; 530 struct drm_clip_rect norect = { 531 .x1 = 0, 532 .y1 = 0, 533 .x2 = plane->state->fb->width, 534 .y2 = plane->state->fb->height 535 }; 536 uint32_t dumb_shadow_offset = 0; 537 538 primary = bo->shadow ? bo->shadow : bo; 539 540 if (!primary->is_primary) { 541 if (qdev->primary_bo) 542 qxl_io_destroy_primary(qdev); 543 qxl_io_create_primary(qdev, primary); 544 qxl_primary_apply_cursor(plane); 545 } 546 547 if (bo->is_dumb) 548 dumb_shadow_offset = 549 qdev->dumb_heads[plane->state->crtc->index].x; 550 551 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, 552 dumb_shadow_offset); 553 } 554 555 static void qxl_primary_atomic_disable(struct drm_plane *plane, 556 struct drm_plane_state *old_state) 557 { 558 struct qxl_device *qdev = to_qxl(plane->dev); 559 560 if (old_state->fb) { 561 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 562 563 if (bo->is_primary) { 564 qxl_io_destroy_primary(qdev); 565 bo->is_primary = false; 566 } 567 } 568 } 569 570 static void qxl_cursor_atomic_update(struct drm_plane *plane, 571 struct drm_plane_state *old_state) 572 { 573 struct drm_device *dev = plane->dev; 574 struct qxl_device *qdev = to_qxl(dev); 575 struct drm_framebuffer *fb = plane->state->fb; 576 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 577 struct qxl_release *release; 578 struct qxl_cursor_cmd *cmd; 579 struct qxl_cursor *cursor; 580 struct drm_gem_object *obj; 581 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; 582 int ret; 583 void *user_ptr; 584 int size = 64*64*4; 585 586 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 587 QXL_RELEASE_CURSOR_CMD, 588 &release, NULL); 589 if (ret) 590 return; 591 592 if (fb != old_state->fb) { 593 obj = fb->obj[0]; 594 user_bo = gem_to_qxl_bo(obj); 595 596 /* pinning is done in the prepare/cleanup framevbuffer */ 597 ret = qxl_bo_kmap(user_bo, &user_ptr); 598 if (ret) 599 goto out_free_release; 600 601 ret = qxl_alloc_bo_reserved(qdev, release, 602 sizeof(struct qxl_cursor) + size, 603 &cursor_bo); 604 if (ret) 605 goto out_kunmap; 606 607 ret = qxl_bo_pin(cursor_bo); 608 if (ret) 609 goto out_free_bo; 610 611 ret = qxl_release_reserve_list(release, true); 612 if (ret) 613 goto out_unpin; 614 615 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); 616 if (ret) 617 goto out_backoff; 618 619 cursor->header.unique = 0; 620 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; 621 cursor->header.width = 64; 622 cursor->header.height = 64; 623 cursor->header.hot_spot_x = fb->hot_x; 624 cursor->header.hot_spot_y = fb->hot_y; 625 cursor->data_size = size; 626 cursor->chunk.next_chunk = 0; 627 cursor->chunk.prev_chunk = 0; 628 cursor->chunk.data_size = size; 629 memcpy(cursor->chunk.data, user_ptr, size); 630 qxl_bo_kunmap(cursor_bo); 631 qxl_bo_kunmap(user_bo); 632 633 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 634 cmd->u.set.visible = 1; 635 cmd->u.set.shape = qxl_bo_physical_address(qdev, 636 cursor_bo, 0); 637 cmd->type = QXL_CURSOR_SET; 638 639 old_cursor_bo = qcrtc->cursor_bo; 640 qcrtc->cursor_bo = cursor_bo; 641 cursor_bo = NULL; 642 } else { 643 644 ret = qxl_release_reserve_list(release, true); 645 if (ret) 646 goto out_free_release; 647 648 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 649 cmd->type = QXL_CURSOR_MOVE; 650 } 651 652 cmd->u.position.x = plane->state->crtc_x + fb->hot_x; 653 cmd->u.position.y = plane->state->crtc_y + fb->hot_y; 654 655 qxl_release_unmap(qdev, release, &cmd->release_info); 656 qxl_release_fence_buffer_objects(release); 657 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 658 659 if (old_cursor_bo != NULL) 660 qxl_bo_unpin(old_cursor_bo); 661 qxl_bo_unref(&old_cursor_bo); 662 qxl_bo_unref(&cursor_bo); 663 664 return; 665 666 out_backoff: 667 qxl_release_backoff_reserve_list(release); 668 out_unpin: 669 qxl_bo_unpin(cursor_bo); 670 out_free_bo: 671 qxl_bo_unref(&cursor_bo); 672 out_kunmap: 673 qxl_bo_kunmap(user_bo); 674 out_free_release: 675 qxl_release_free(qdev, release); 676 return; 677 678 } 679 680 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 681 struct drm_plane_state *old_state) 682 { 683 struct qxl_device *qdev = to_qxl(plane->dev); 684 struct qxl_release *release; 685 struct qxl_cursor_cmd *cmd; 686 int ret; 687 688 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 689 QXL_RELEASE_CURSOR_CMD, 690 &release, NULL); 691 if (ret) 692 return; 693 694 ret = qxl_release_reserve_list(release, true); 695 if (ret) { 696 qxl_release_free(qdev, release); 697 return; 698 } 699 700 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 701 cmd->type = QXL_CURSOR_HIDE; 702 qxl_release_unmap(qdev, release, &cmd->release_info); 703 704 qxl_release_fence_buffer_objects(release); 705 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 706 } 707 708 static void qxl_update_dumb_head(struct qxl_device *qdev, 709 int index, struct qxl_bo *bo) 710 { 711 uint32_t width, height; 712 713 if (index >= qdev->monitors_config->max_allowed) 714 return; 715 716 if (bo && bo->is_dumb) { 717 width = bo->surf.width; 718 height = bo->surf.height; 719 } else { 720 width = 0; 721 height = 0; 722 } 723 724 if (qdev->dumb_heads[index].width == width && 725 qdev->dumb_heads[index].height == height) 726 return; 727 728 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 729 qdev->dumb_heads[index].width, 730 qdev->dumb_heads[index].height, 731 width, height); 732 qdev->dumb_heads[index].width = width; 733 qdev->dumb_heads[index].height = height; 734 } 735 736 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 737 struct qxl_surface *surf) 738 { 739 struct qxl_head *head; 740 int i; 741 742 memset(surf, 0, sizeof(*surf)); 743 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 744 head = qdev->dumb_heads + i; 745 head->x = surf->width; 746 surf->width += head->width; 747 if (surf->height < head->height) 748 surf->height = head->height; 749 } 750 if (surf->width < 64) 751 surf->width = 64; 752 if (surf->height < 64) 753 surf->height = 64; 754 surf->format = SPICE_SURFACE_FMT_32_xRGB; 755 surf->stride = surf->width * 4; 756 757 if (!qdev->dumb_shadow_bo || 758 qdev->dumb_shadow_bo->surf.width != surf->width || 759 qdev->dumb_shadow_bo->surf.height != surf->height) 760 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 761 } 762 763 static int qxl_plane_prepare_fb(struct drm_plane *plane, 764 struct drm_plane_state *new_state) 765 { 766 struct qxl_device *qdev = to_qxl(plane->dev); 767 struct drm_gem_object *obj; 768 struct qxl_bo *user_bo; 769 struct qxl_surface surf; 770 int ret; 771 772 if (!new_state->fb) 773 return 0; 774 775 obj = new_state->fb->obj[0]; 776 user_bo = gem_to_qxl_bo(obj); 777 778 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 779 user_bo->is_dumb) { 780 qxl_update_dumb_head(qdev, new_state->crtc->index, 781 user_bo); 782 qxl_calc_dumb_shadow(qdev, &surf); 783 if (!qdev->dumb_shadow_bo || 784 qdev->dumb_shadow_bo->surf.width != surf.width || 785 qdev->dumb_shadow_bo->surf.height != surf.height) { 786 if (qdev->dumb_shadow_bo) { 787 drm_gem_object_put 788 (&qdev->dumb_shadow_bo->tbo.base); 789 qdev->dumb_shadow_bo = NULL; 790 } 791 qxl_bo_create(qdev, surf.height * surf.stride, 792 true, true, QXL_GEM_DOMAIN_SURFACE, &surf, 793 &qdev->dumb_shadow_bo); 794 } 795 if (user_bo->shadow != qdev->dumb_shadow_bo) { 796 if (user_bo->shadow) { 797 drm_gem_object_put 798 (&user_bo->shadow->tbo.base); 799 user_bo->shadow = NULL; 800 } 801 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 802 user_bo->shadow = qdev->dumb_shadow_bo; 803 } 804 } 805 806 ret = qxl_bo_pin(user_bo); 807 if (ret) 808 return ret; 809 810 return 0; 811 } 812 813 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 814 struct drm_plane_state *old_state) 815 { 816 struct drm_gem_object *obj; 817 struct qxl_bo *user_bo; 818 819 if (!old_state->fb) { 820 /* 821 * we never executed prepare_fb, so there's nothing to 822 * unpin. 823 */ 824 return; 825 } 826 827 obj = old_state->fb->obj[0]; 828 user_bo = gem_to_qxl_bo(obj); 829 qxl_bo_unpin(user_bo); 830 831 if (old_state->fb != plane->state->fb && user_bo->shadow) { 832 drm_gem_object_put(&user_bo->shadow->tbo.base); 833 user_bo->shadow = NULL; 834 } 835 } 836 837 static const uint32_t qxl_cursor_plane_formats[] = { 838 DRM_FORMAT_ARGB8888, 839 }; 840 841 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 842 .atomic_update = qxl_cursor_atomic_update, 843 .atomic_disable = qxl_cursor_atomic_disable, 844 .prepare_fb = qxl_plane_prepare_fb, 845 .cleanup_fb = qxl_plane_cleanup_fb, 846 }; 847 848 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 849 .update_plane = drm_atomic_helper_update_plane, 850 .disable_plane = drm_atomic_helper_disable_plane, 851 .destroy = drm_primary_helper_destroy, 852 .reset = drm_atomic_helper_plane_reset, 853 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 854 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 855 }; 856 857 static const uint32_t qxl_primary_plane_formats[] = { 858 DRM_FORMAT_XRGB8888, 859 DRM_FORMAT_ARGB8888, 860 }; 861 862 static const struct drm_plane_helper_funcs primary_helper_funcs = { 863 .atomic_check = qxl_primary_atomic_check, 864 .atomic_update = qxl_primary_atomic_update, 865 .atomic_disable = qxl_primary_atomic_disable, 866 .prepare_fb = qxl_plane_prepare_fb, 867 .cleanup_fb = qxl_plane_cleanup_fb, 868 }; 869 870 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 871 .update_plane = drm_atomic_helper_update_plane, 872 .disable_plane = drm_atomic_helper_disable_plane, 873 .destroy = drm_primary_helper_destroy, 874 .reset = drm_atomic_helper_plane_reset, 875 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 876 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 877 }; 878 879 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 880 unsigned int possible_crtcs, 881 enum drm_plane_type type) 882 { 883 const struct drm_plane_helper_funcs *helper_funcs = NULL; 884 struct drm_plane *plane; 885 const struct drm_plane_funcs *funcs; 886 const uint32_t *formats; 887 int num_formats; 888 int err; 889 890 if (type == DRM_PLANE_TYPE_PRIMARY) { 891 funcs = &qxl_primary_plane_funcs; 892 formats = qxl_primary_plane_formats; 893 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 894 helper_funcs = &primary_helper_funcs; 895 } else if (type == DRM_PLANE_TYPE_CURSOR) { 896 funcs = &qxl_cursor_plane_funcs; 897 formats = qxl_cursor_plane_formats; 898 helper_funcs = &qxl_cursor_helper_funcs; 899 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 900 } else { 901 return ERR_PTR(-EINVAL); 902 } 903 904 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 905 if (!plane) 906 return ERR_PTR(-ENOMEM); 907 908 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 909 funcs, formats, num_formats, 910 NULL, type, NULL); 911 if (err) 912 goto free_plane; 913 914 drm_plane_helper_add(plane, helper_funcs); 915 916 return plane; 917 918 free_plane: 919 kfree(plane); 920 return ERR_PTR(-EINVAL); 921 } 922 923 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 924 { 925 struct qxl_crtc *qxl_crtc; 926 struct drm_plane *primary, *cursor; 927 struct qxl_device *qdev = to_qxl(dev); 928 int r; 929 930 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 931 if (!qxl_crtc) 932 return -ENOMEM; 933 934 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 935 if (IS_ERR(primary)) { 936 r = -ENOMEM; 937 goto free_mem; 938 } 939 940 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 941 if (IS_ERR(cursor)) { 942 r = -ENOMEM; 943 goto clean_primary; 944 } 945 946 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 947 &qxl_crtc_funcs, NULL); 948 if (r) 949 goto clean_cursor; 950 951 qxl_crtc->index = crtc_id; 952 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 953 return 0; 954 955 clean_cursor: 956 drm_plane_cleanup(cursor); 957 kfree(cursor); 958 clean_primary: 959 drm_plane_cleanup(primary); 960 kfree(primary); 961 free_mem: 962 kfree(qxl_crtc); 963 return r; 964 } 965 966 static int qxl_conn_get_modes(struct drm_connector *connector) 967 { 968 struct drm_device *dev = connector->dev; 969 struct qxl_device *qdev = to_qxl(dev); 970 struct qxl_output *output = drm_connector_to_qxl_output(connector); 971 unsigned int pwidth = 1024; 972 unsigned int pheight = 768; 973 int ret = 0; 974 975 if (qdev->client_monitors_config) { 976 struct qxl_head *head; 977 head = &qdev->client_monitors_config->heads[output->index]; 978 if (head->width) 979 pwidth = head->width; 980 if (head->height) 981 pheight = head->height; 982 } 983 984 ret += drm_add_modes_noedid(connector, 8192, 8192); 985 ret += qxl_add_extra_modes(connector); 986 ret += qxl_add_monitors_config_modes(connector); 987 drm_set_preferred_mode(connector, pwidth, pheight); 988 return ret; 989 } 990 991 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 992 struct drm_display_mode *mode) 993 { 994 struct drm_device *ddev = connector->dev; 995 struct qxl_device *qdev = to_qxl(ddev); 996 997 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 998 return MODE_BAD; 999 1000 return MODE_OK; 1001 } 1002 1003 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1004 { 1005 struct qxl_output *qxl_output = 1006 drm_connector_to_qxl_output(connector); 1007 1008 DRM_DEBUG("\n"); 1009 return &qxl_output->enc; 1010 } 1011 1012 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1013 .get_modes = qxl_conn_get_modes, 1014 .mode_valid = qxl_conn_mode_valid, 1015 .best_encoder = qxl_best_encoder, 1016 }; 1017 1018 static enum drm_connector_status qxl_conn_detect( 1019 struct drm_connector *connector, 1020 bool force) 1021 { 1022 struct qxl_output *output = 1023 drm_connector_to_qxl_output(connector); 1024 struct drm_device *ddev = connector->dev; 1025 struct qxl_device *qdev = to_qxl(ddev); 1026 bool connected = false; 1027 1028 /* The first monitor is always connected */ 1029 if (!qdev->client_monitors_config) { 1030 if (output->index == 0) 1031 connected = true; 1032 } else 1033 connected = qdev->client_monitors_config->count > output->index && 1034 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1035 1036 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1037 1038 return connected ? connector_status_connected 1039 : connector_status_disconnected; 1040 } 1041 1042 static void qxl_conn_destroy(struct drm_connector *connector) 1043 { 1044 struct qxl_output *qxl_output = 1045 drm_connector_to_qxl_output(connector); 1046 1047 drm_connector_unregister(connector); 1048 drm_connector_cleanup(connector); 1049 kfree(qxl_output); 1050 } 1051 1052 static const struct drm_connector_funcs qxl_connector_funcs = { 1053 .detect = qxl_conn_detect, 1054 .fill_modes = drm_helper_probe_single_connector_modes, 1055 .destroy = qxl_conn_destroy, 1056 .reset = drm_atomic_helper_connector_reset, 1057 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1058 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1059 }; 1060 1061 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1062 { 1063 if (qdev->hotplug_mode_update_property) 1064 return 0; 1065 1066 qdev->hotplug_mode_update_property = 1067 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1068 "hotplug_mode_update", 0, 1); 1069 1070 return 0; 1071 } 1072 1073 static int qdev_output_init(struct drm_device *dev, int num_output) 1074 { 1075 struct qxl_device *qdev = to_qxl(dev); 1076 struct qxl_output *qxl_output; 1077 struct drm_connector *connector; 1078 struct drm_encoder *encoder; 1079 int ret; 1080 1081 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1082 if (!qxl_output) 1083 return -ENOMEM; 1084 1085 qxl_output->index = num_output; 1086 1087 connector = &qxl_output->base; 1088 encoder = &qxl_output->enc; 1089 drm_connector_init(dev, &qxl_output->base, 1090 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1091 1092 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1093 DRM_MODE_ENCODER_VIRTUAL); 1094 if (ret) { 1095 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1096 ret); 1097 goto err_drm_connector_cleanup; 1098 } 1099 1100 /* we get HPD via client monitors config */ 1101 connector->polled = DRM_CONNECTOR_POLL_HPD; 1102 encoder->possible_crtcs = 1 << num_output; 1103 drm_connector_attach_encoder(&qxl_output->base, 1104 &qxl_output->enc); 1105 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1106 1107 drm_object_attach_property(&connector->base, 1108 qdev->hotplug_mode_update_property, 0); 1109 drm_object_attach_property(&connector->base, 1110 dev->mode_config.suggested_x_property, 0); 1111 drm_object_attach_property(&connector->base, 1112 dev->mode_config.suggested_y_property, 0); 1113 return 0; 1114 1115 err_drm_connector_cleanup: 1116 drm_connector_cleanup(&qxl_output->base); 1117 kfree(qxl_output); 1118 return ret; 1119 } 1120 1121 static struct drm_framebuffer * 1122 qxl_user_framebuffer_create(struct drm_device *dev, 1123 struct drm_file *file_priv, 1124 const struct drm_mode_fb_cmd2 *mode_cmd) 1125 { 1126 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1127 &qxl_fb_funcs); 1128 } 1129 1130 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1131 .fb_create = qxl_user_framebuffer_create, 1132 .atomic_check = drm_atomic_helper_check, 1133 .atomic_commit = drm_atomic_helper_commit, 1134 }; 1135 1136 int qxl_create_monitors_object(struct qxl_device *qdev) 1137 { 1138 int ret; 1139 struct drm_gem_object *gobj; 1140 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1141 qxl_num_crtc * sizeof(struct qxl_head); 1142 1143 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1144 QXL_GEM_DOMAIN_VRAM, 1145 false, false, NULL, &gobj); 1146 if (ret) { 1147 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1148 return -ENOMEM; 1149 } 1150 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1151 1152 ret = qxl_bo_pin(qdev->monitors_config_bo); 1153 if (ret) 1154 return ret; 1155 1156 qxl_bo_kmap(qdev->monitors_config_bo, NULL); 1157 1158 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1159 qdev->ram_header->monitors_config = 1160 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1161 1162 memset(qdev->monitors_config, 0, monitors_config_size); 1163 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1164 GFP_KERNEL); 1165 if (!qdev->dumb_heads) { 1166 qxl_destroy_monitors_object(qdev); 1167 return -ENOMEM; 1168 } 1169 return 0; 1170 } 1171 1172 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1173 { 1174 int ret; 1175 1176 qdev->monitors_config = NULL; 1177 qdev->ram_header->monitors_config = 0; 1178 1179 qxl_bo_kunmap(qdev->monitors_config_bo); 1180 ret = qxl_bo_unpin(qdev->monitors_config_bo); 1181 if (ret) 1182 return ret; 1183 1184 qxl_bo_unref(&qdev->monitors_config_bo); 1185 return 0; 1186 } 1187 1188 int qxl_modeset_init(struct qxl_device *qdev) 1189 { 1190 int i; 1191 int ret; 1192 1193 drm_mode_config_init(&qdev->ddev); 1194 1195 ret = qxl_create_monitors_object(qdev); 1196 if (ret) 1197 return ret; 1198 1199 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1200 1201 /* modes will be validated against the framebuffer size */ 1202 qdev->ddev.mode_config.min_width = 0; 1203 qdev->ddev.mode_config.min_height = 0; 1204 qdev->ddev.mode_config.max_width = 8192; 1205 qdev->ddev.mode_config.max_height = 8192; 1206 1207 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1208 1209 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1210 qxl_mode_create_hotplug_mode_update_property(qdev); 1211 1212 for (i = 0 ; i < qxl_num_crtc; ++i) { 1213 qdev_crtc_init(&qdev->ddev, i); 1214 qdev_output_init(&qdev->ddev, i); 1215 } 1216 1217 qxl_display_read_client_monitors_config(qdev); 1218 1219 drm_mode_config_reset(&qdev->ddev); 1220 return 0; 1221 } 1222 1223 void qxl_modeset_fini(struct qxl_device *qdev) 1224 { 1225 qxl_destroy_monitors_object(qdev); 1226 drm_mode_config_cleanup(&qdev->ddev); 1227 } 1228