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 #include <linux/dma-buf-map.h> 29 30 #include <drm/drm_drv.h> 31 #include <drm/drm_atomic.h> 32 #include <drm/drm_atomic_helper.h> 33 #include <drm/drm_gem_framebuffer_helper.h> 34 #include <drm/drm_plane_helper.h> 35 #include <drm/drm_probe_helper.h> 36 #include <drm/drm_simple_kms_helper.h> 37 38 #include "qxl_drv.h" 39 #include "qxl_object.h" 40 41 static bool qxl_head_enabled(struct qxl_head *head) 42 { 43 return head->width && head->height; 44 } 45 46 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev, 47 unsigned int count) 48 { 49 if (qdev->client_monitors_config && 50 count > qdev->client_monitors_config->count) { 51 kfree(qdev->client_monitors_config); 52 qdev->client_monitors_config = NULL; 53 } 54 if (!qdev->client_monitors_config) { 55 qdev->client_monitors_config = kzalloc( 56 struct_size(qdev->client_monitors_config, 57 heads, count), GFP_KERNEL); 58 if (!qdev->client_monitors_config) 59 return -ENOMEM; 60 } 61 qdev->client_monitors_config->count = count; 62 return 0; 63 } 64 65 enum { 66 MONITORS_CONFIG_MODIFIED, 67 MONITORS_CONFIG_UNCHANGED, 68 MONITORS_CONFIG_BAD_CRC, 69 MONITORS_CONFIG_ERROR, 70 }; 71 72 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) 73 { 74 int i; 75 int num_monitors; 76 uint32_t crc; 77 int status = MONITORS_CONFIG_UNCHANGED; 78 79 num_monitors = qdev->rom->client_monitors_config.count; 80 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config, 81 sizeof(qdev->rom->client_monitors_config)); 82 if (crc != qdev->rom->client_monitors_config_crc) 83 return MONITORS_CONFIG_BAD_CRC; 84 if (!num_monitors) { 85 DRM_DEBUG_KMS("no client monitors configured\n"); 86 return status; 87 } 88 if (num_monitors > qxl_num_crtc) { 89 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", 90 qxl_num_crtc, num_monitors); 91 num_monitors = qxl_num_crtc; 92 } else { 93 num_monitors = qdev->rom->client_monitors_config.count; 94 } 95 if (qdev->client_monitors_config 96 && (num_monitors != qdev->client_monitors_config->count)) { 97 status = MONITORS_CONFIG_MODIFIED; 98 } 99 if (qxl_alloc_client_monitors_config(qdev, num_monitors)) { 100 status = MONITORS_CONFIG_ERROR; 101 return status; 102 } 103 /* we copy max from the client but it isn't used */ 104 qdev->client_monitors_config->max_allowed = qxl_num_crtc; 105 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) { 106 struct qxl_urect *c_rect = 107 &qdev->rom->client_monitors_config.heads[i]; 108 struct qxl_head *client_head = 109 &qdev->client_monitors_config->heads[i]; 110 if (client_head->x != c_rect->left) { 111 client_head->x = c_rect->left; 112 status = MONITORS_CONFIG_MODIFIED; 113 } 114 if (client_head->y != c_rect->top) { 115 client_head->y = c_rect->top; 116 status = MONITORS_CONFIG_MODIFIED; 117 } 118 if (client_head->width != c_rect->right - c_rect->left) { 119 client_head->width = c_rect->right - c_rect->left; 120 status = MONITORS_CONFIG_MODIFIED; 121 } 122 if (client_head->height != c_rect->bottom - c_rect->top) { 123 client_head->height = c_rect->bottom - c_rect->top; 124 status = MONITORS_CONFIG_MODIFIED; 125 } 126 if (client_head->surface_id != 0) { 127 client_head->surface_id = 0; 128 status = MONITORS_CONFIG_MODIFIED; 129 } 130 if (client_head->id != i) { 131 client_head->id = i; 132 status = MONITORS_CONFIG_MODIFIED; 133 } 134 if (client_head->flags != 0) { 135 client_head->flags = 0; 136 status = MONITORS_CONFIG_MODIFIED; 137 } 138 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height, 139 client_head->x, client_head->y); 140 } 141 142 return status; 143 } 144 145 static void qxl_update_offset_props(struct qxl_device *qdev) 146 { 147 struct drm_device *dev = &qdev->ddev; 148 struct drm_connector *connector; 149 struct qxl_output *output; 150 struct qxl_head *head; 151 152 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 153 output = drm_connector_to_qxl_output(connector); 154 155 head = &qdev->client_monitors_config->heads[output->index]; 156 157 drm_object_property_set_value(&connector->base, 158 dev->mode_config.suggested_x_property, head->x); 159 drm_object_property_set_value(&connector->base, 160 dev->mode_config.suggested_y_property, head->y); 161 } 162 } 163 164 void qxl_display_read_client_monitors_config(struct qxl_device *qdev) 165 { 166 struct drm_device *dev = &qdev->ddev; 167 struct drm_modeset_acquire_ctx ctx; 168 int status, retries, ret; 169 170 for (retries = 0; retries < 10; retries++) { 171 status = qxl_display_copy_rom_client_monitors_config(qdev); 172 if (status != MONITORS_CONFIG_BAD_CRC) 173 break; 174 udelay(5); 175 } 176 if (status == MONITORS_CONFIG_ERROR) { 177 DRM_DEBUG_KMS("ignoring client monitors config: error"); 178 return; 179 } 180 if (status == MONITORS_CONFIG_BAD_CRC) { 181 DRM_DEBUG_KMS("ignoring client monitors config: bad crc"); 182 return; 183 } 184 if (status == MONITORS_CONFIG_UNCHANGED) { 185 DRM_DEBUG_KMS("ignoring client monitors config: unchanged"); 186 return; 187 } 188 189 DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 190 qxl_update_offset_props(qdev); 191 DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); 192 if (!drm_helper_hpd_irq_event(dev)) { 193 /* notify that the monitor configuration changed, to 194 adjust at the arbitrary resolution */ 195 drm_kms_helper_hotplug_event(dev); 196 } 197 } 198 199 static int qxl_check_mode(struct qxl_device *qdev, 200 unsigned int width, 201 unsigned int height) 202 { 203 unsigned int stride; 204 unsigned int size; 205 206 if (check_mul_overflow(width, 4u, &stride)) 207 return -EINVAL; 208 if (check_mul_overflow(stride, height, &size)) 209 return -EINVAL; 210 if (size > qdev->vram_size) 211 return -ENOMEM; 212 return 0; 213 } 214 215 static int qxl_check_framebuffer(struct qxl_device *qdev, 216 struct qxl_bo *bo) 217 { 218 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height); 219 } 220 221 static int qxl_add_mode(struct drm_connector *connector, 222 unsigned int width, 223 unsigned int height, 224 bool preferred) 225 { 226 struct drm_device *dev = connector->dev; 227 struct qxl_device *qdev = to_qxl(dev); 228 struct drm_display_mode *mode = NULL; 229 int rc; 230 231 rc = qxl_check_mode(qdev, width, height); 232 if (rc != 0) 233 return 0; 234 235 mode = drm_cvt_mode(dev, width, height, 60, false, false, false); 236 if (preferred) 237 mode->type |= DRM_MODE_TYPE_PREFERRED; 238 mode->hdisplay = width; 239 mode->vdisplay = height; 240 drm_mode_set_name(mode); 241 drm_mode_probed_add(connector, mode); 242 return 1; 243 } 244 245 static int qxl_add_monitors_config_modes(struct drm_connector *connector) 246 { 247 struct drm_device *dev = connector->dev; 248 struct qxl_device *qdev = to_qxl(dev); 249 struct qxl_output *output = drm_connector_to_qxl_output(connector); 250 int h = output->index; 251 struct qxl_head *head; 252 253 if (!qdev->monitors_config) 254 return 0; 255 if (h >= qxl_num_crtc) 256 return 0; 257 if (!qdev->client_monitors_config) 258 return 0; 259 if (h >= qdev->client_monitors_config->count) 260 return 0; 261 262 head = &qdev->client_monitors_config->heads[h]; 263 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height); 264 265 return qxl_add_mode(connector, head->width, head->height, true); 266 } 267 268 static struct mode_size { 269 int w; 270 int h; 271 } extra_modes[] = { 272 { 720, 480}, 273 {1152, 768}, 274 {1280, 854}, 275 }; 276 277 static int qxl_add_extra_modes(struct drm_connector *connector) 278 { 279 int i, ret = 0; 280 281 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) 282 ret += qxl_add_mode(connector, 283 extra_modes[i].w, 284 extra_modes[i].h, 285 false); 286 return ret; 287 } 288 289 static void qxl_send_monitors_config(struct qxl_device *qdev) 290 { 291 int i; 292 293 BUG_ON(!qdev->ram_header->monitors_config); 294 295 if (qdev->monitors_config->count == 0) 296 return; 297 298 for (i = 0 ; i < qdev->monitors_config->count ; ++i) { 299 struct qxl_head *head = &qdev->monitors_config->heads[i]; 300 301 if (head->y > 8192 || head->x > 8192 || 302 head->width > 8192 || head->height > 8192) { 303 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n", 304 i, head->width, head->height, 305 head->x, head->y); 306 return; 307 } 308 } 309 qxl_io_monitors_config(qdev); 310 } 311 312 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, 313 const char *reason) 314 { 315 struct drm_device *dev = crtc->dev; 316 struct qxl_device *qdev = to_qxl(dev); 317 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc); 318 struct qxl_head head; 319 int oldcount, i = qcrtc->index; 320 321 if (!qdev->primary_bo) { 322 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason); 323 return; 324 } 325 326 if (!qdev->monitors_config || qxl_num_crtc <= i) 327 return; 328 329 head.id = i; 330 head.flags = 0; 331 oldcount = qdev->monitors_config->count; 332 if (crtc->state->active) { 333 struct drm_display_mode *mode = &crtc->mode; 334 335 head.width = mode->hdisplay; 336 head.height = mode->vdisplay; 337 head.x = crtc->x; 338 head.y = crtc->y; 339 if (qdev->monitors_config->count < i + 1) 340 qdev->monitors_config->count = i + 1; 341 if (qdev->primary_bo == qdev->dumb_shadow_bo) 342 head.x += qdev->dumb_heads[i].x; 343 } else if (i > 0) { 344 head.width = 0; 345 head.height = 0; 346 head.x = 0; 347 head.y = 0; 348 if (qdev->monitors_config->count == i + 1) 349 qdev->monitors_config->count = i; 350 } else { 351 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); 352 return; 353 } 354 355 if (head.width == qdev->monitors_config->heads[i].width && 356 head.height == qdev->monitors_config->heads[i].height && 357 head.x == qdev->monitors_config->heads[i].x && 358 head.y == qdev->monitors_config->heads[i].y && 359 oldcount == qdev->monitors_config->count) 360 return; 361 362 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", 363 i, head.width, head.height, head.x, head.y, 364 crtc->state->active ? "on" : "off", reason); 365 if (oldcount != qdev->monitors_config->count) 366 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", 367 oldcount, qdev->monitors_config->count, 368 qxl_num_crtc); 369 370 qdev->monitors_config->heads[i] = head; 371 qdev->monitors_config->max_allowed = qxl_num_crtc; 372 qxl_send_monitors_config(qdev); 373 } 374 375 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, 376 struct drm_atomic_state *state) 377 { 378 qxl_crtc_update_monitors_config(crtc, "flush"); 379 } 380 381 static void qxl_crtc_destroy(struct drm_crtc *crtc) 382 { 383 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 384 385 qxl_bo_unref(&qxl_crtc->cursor_bo); 386 drm_crtc_cleanup(crtc); 387 kfree(qxl_crtc); 388 } 389 390 static const struct drm_crtc_funcs qxl_crtc_funcs = { 391 .set_config = drm_atomic_helper_set_config, 392 .destroy = qxl_crtc_destroy, 393 .page_flip = drm_atomic_helper_page_flip, 394 .reset = drm_atomic_helper_crtc_reset, 395 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 396 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 397 }; 398 399 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 400 struct drm_file *file_priv, 401 unsigned int flags, unsigned int color, 402 struct drm_clip_rect *clips, 403 unsigned int num_clips) 404 { 405 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 406 struct qxl_device *qdev = to_qxl(fb->dev); 407 struct drm_clip_rect norect; 408 struct qxl_bo *qobj; 409 struct drm_modeset_acquire_ctx ctx; 410 bool is_primary; 411 int inc = 1, ret; 412 413 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 414 415 qobj = gem_to_qxl_bo(fb->obj[0]); 416 /* if we aren't primary surface ignore this */ 417 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 418 if (!is_primary) 419 goto out_lock_end; 420 421 if (!num_clips) { 422 num_clips = 1; 423 clips = &norect; 424 norect.x1 = norect.y1 = 0; 425 norect.x2 = fb->width; 426 norect.y2 = fb->height; 427 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 428 num_clips /= 2; 429 inc = 2; /* skip source rects */ 430 } 431 432 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, 433 clips, num_clips, inc, 0); 434 435 out_lock_end: 436 DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret); 437 438 return 0; 439 } 440 441 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 442 .destroy = drm_gem_fb_destroy, 443 .dirty = qxl_framebuffer_surface_dirty, 444 .create_handle = drm_gem_fb_create_handle, 445 }; 446 447 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 448 struct drm_atomic_state *state) 449 { 450 qxl_crtc_update_monitors_config(crtc, "enable"); 451 } 452 453 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 454 struct drm_atomic_state *state) 455 { 456 qxl_crtc_update_monitors_config(crtc, "disable"); 457 } 458 459 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 460 .atomic_flush = qxl_crtc_atomic_flush, 461 .atomic_enable = qxl_crtc_atomic_enable, 462 .atomic_disable = qxl_crtc_atomic_disable, 463 }; 464 465 static int qxl_primary_atomic_check(struct drm_plane *plane, 466 struct drm_plane_state *state) 467 { 468 struct qxl_device *qdev = to_qxl(plane->dev); 469 struct qxl_bo *bo; 470 471 if (!state->crtc || !state->fb) 472 return 0; 473 474 bo = gem_to_qxl_bo(state->fb->obj[0]); 475 476 return qxl_check_framebuffer(qdev, bo); 477 } 478 479 static int qxl_primary_apply_cursor(struct drm_plane *plane) 480 { 481 struct drm_device *dev = plane->dev; 482 struct qxl_device *qdev = to_qxl(dev); 483 struct drm_framebuffer *fb = plane->state->fb; 484 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 485 struct qxl_cursor_cmd *cmd; 486 struct qxl_release *release; 487 int ret = 0; 488 489 if (!qcrtc->cursor_bo) 490 return 0; 491 492 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 493 QXL_RELEASE_CURSOR_CMD, 494 &release, NULL); 495 if (ret) 496 return ret; 497 498 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 499 if (ret) 500 goto out_free_release; 501 502 ret = qxl_release_reserve_list(release, false); 503 if (ret) 504 goto out_free_release; 505 506 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 507 cmd->type = QXL_CURSOR_SET; 508 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; 509 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; 510 511 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 512 513 cmd->u.set.visible = 1; 514 qxl_release_unmap(qdev, release, &cmd->release_info); 515 516 qxl_release_fence_buffer_objects(release); 517 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 518 519 return ret; 520 521 out_free_release: 522 qxl_release_free(qdev, release); 523 return ret; 524 } 525 526 static void qxl_primary_atomic_update(struct drm_plane *plane, 527 struct drm_plane_state *old_state) 528 { 529 struct qxl_device *qdev = to_qxl(plane->dev); 530 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); 531 struct qxl_bo *primary; 532 struct drm_clip_rect norect = { 533 .x1 = 0, 534 .y1 = 0, 535 .x2 = plane->state->fb->width, 536 .y2 = plane->state->fb->height 537 }; 538 uint32_t dumb_shadow_offset = 0; 539 540 primary = bo->shadow ? bo->shadow : bo; 541 542 if (!primary->is_primary) { 543 if (qdev->primary_bo) 544 qxl_io_destroy_primary(qdev); 545 qxl_io_create_primary(qdev, primary); 546 qxl_primary_apply_cursor(plane); 547 } 548 549 if (bo->is_dumb) 550 dumb_shadow_offset = 551 qdev->dumb_heads[plane->state->crtc->index].x; 552 553 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, 554 dumb_shadow_offset); 555 } 556 557 static void qxl_primary_atomic_disable(struct drm_plane *plane, 558 struct drm_plane_state *old_state) 559 { 560 struct qxl_device *qdev = to_qxl(plane->dev); 561 562 if (old_state->fb) { 563 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 564 565 if (bo->is_primary) { 566 qxl_io_destroy_primary(qdev); 567 bo->is_primary = false; 568 } 569 } 570 } 571 572 static void qxl_cursor_atomic_update(struct drm_plane *plane, 573 struct drm_plane_state *old_state) 574 { 575 struct drm_device *dev = plane->dev; 576 struct qxl_device *qdev = to_qxl(dev); 577 struct drm_framebuffer *fb = plane->state->fb; 578 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 579 struct qxl_release *release; 580 struct qxl_cursor_cmd *cmd; 581 struct qxl_cursor *cursor; 582 struct drm_gem_object *obj; 583 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; 584 int ret; 585 struct dma_buf_map user_map; 586 struct dma_buf_map cursor_map; 587 void *user_ptr; 588 int size = 64*64*4; 589 590 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 591 QXL_RELEASE_CURSOR_CMD, 592 &release, NULL); 593 if (ret) 594 return; 595 596 if (fb != old_state->fb) { 597 obj = fb->obj[0]; 598 user_bo = gem_to_qxl_bo(obj); 599 600 /* pinning is done in the prepare/cleanup framevbuffer */ 601 ret = qxl_bo_kmap(user_bo, &user_map); 602 if (ret) 603 goto out_free_release; 604 user_ptr = user_map.vaddr; /* TODO: Use mapping abstraction properly */ 605 606 ret = qxl_alloc_bo_reserved(qdev, release, 607 sizeof(struct qxl_cursor) + size, 608 &cursor_bo); 609 if (ret) 610 goto out_kunmap; 611 612 ret = qxl_bo_pin(cursor_bo); 613 if (ret) 614 goto out_free_bo; 615 616 ret = qxl_release_reserve_list(release, true); 617 if (ret) 618 goto out_unpin; 619 620 ret = qxl_bo_kmap(cursor_bo, &cursor_map); 621 if (ret) 622 goto out_backoff; 623 if (cursor_map.is_iomem) /* TODO: Use mapping abstraction properly */ 624 cursor = (struct qxl_cursor __force *)cursor_map.vaddr_iomem; 625 else 626 cursor = (struct qxl_cursor *)cursor_map.vaddr; 627 628 cursor->header.unique = 0; 629 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; 630 cursor->header.width = 64; 631 cursor->header.height = 64; 632 cursor->header.hot_spot_x = fb->hot_x; 633 cursor->header.hot_spot_y = fb->hot_y; 634 cursor->data_size = size; 635 cursor->chunk.next_chunk = 0; 636 cursor->chunk.prev_chunk = 0; 637 cursor->chunk.data_size = size; 638 memcpy(cursor->chunk.data, user_ptr, size); 639 qxl_bo_kunmap(cursor_bo); 640 qxl_bo_kunmap(user_bo); 641 642 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 643 cmd->u.set.visible = 1; 644 cmd->u.set.shape = qxl_bo_physical_address(qdev, 645 cursor_bo, 0); 646 cmd->type = QXL_CURSOR_SET; 647 648 old_cursor_bo = qcrtc->cursor_bo; 649 qcrtc->cursor_bo = cursor_bo; 650 cursor_bo = NULL; 651 } else { 652 653 ret = qxl_release_reserve_list(release, true); 654 if (ret) 655 goto out_free_release; 656 657 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 658 cmd->type = QXL_CURSOR_MOVE; 659 } 660 661 cmd->u.position.x = plane->state->crtc_x + fb->hot_x; 662 cmd->u.position.y = plane->state->crtc_y + fb->hot_y; 663 664 qxl_release_unmap(qdev, release, &cmd->release_info); 665 qxl_release_fence_buffer_objects(release); 666 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 667 668 if (old_cursor_bo != NULL) 669 qxl_bo_unpin(old_cursor_bo); 670 qxl_bo_unref(&old_cursor_bo); 671 qxl_bo_unref(&cursor_bo); 672 673 return; 674 675 out_backoff: 676 qxl_release_backoff_reserve_list(release); 677 out_unpin: 678 qxl_bo_unpin(cursor_bo); 679 out_free_bo: 680 qxl_bo_unref(&cursor_bo); 681 out_kunmap: 682 qxl_bo_kunmap(user_bo); 683 out_free_release: 684 qxl_release_free(qdev, release); 685 return; 686 687 } 688 689 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 690 struct drm_plane_state *old_state) 691 { 692 struct qxl_device *qdev = to_qxl(plane->dev); 693 struct qxl_release *release; 694 struct qxl_cursor_cmd *cmd; 695 int ret; 696 697 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 698 QXL_RELEASE_CURSOR_CMD, 699 &release, NULL); 700 if (ret) 701 return; 702 703 ret = qxl_release_reserve_list(release, true); 704 if (ret) { 705 qxl_release_free(qdev, release); 706 return; 707 } 708 709 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 710 cmd->type = QXL_CURSOR_HIDE; 711 qxl_release_unmap(qdev, release, &cmd->release_info); 712 713 qxl_release_fence_buffer_objects(release); 714 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 715 } 716 717 static void qxl_update_dumb_head(struct qxl_device *qdev, 718 int index, struct qxl_bo *bo) 719 { 720 uint32_t width, height; 721 722 if (index >= qdev->monitors_config->max_allowed) 723 return; 724 725 if (bo && bo->is_dumb) { 726 width = bo->surf.width; 727 height = bo->surf.height; 728 } else { 729 width = 0; 730 height = 0; 731 } 732 733 if (qdev->dumb_heads[index].width == width && 734 qdev->dumb_heads[index].height == height) 735 return; 736 737 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 738 qdev->dumb_heads[index].width, 739 qdev->dumb_heads[index].height, 740 width, height); 741 qdev->dumb_heads[index].width = width; 742 qdev->dumb_heads[index].height = height; 743 } 744 745 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 746 struct qxl_surface *surf) 747 { 748 struct qxl_head *head; 749 int i; 750 751 memset(surf, 0, sizeof(*surf)); 752 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 753 head = qdev->dumb_heads + i; 754 head->x = surf->width; 755 surf->width += head->width; 756 if (surf->height < head->height) 757 surf->height = head->height; 758 } 759 if (surf->width < 64) 760 surf->width = 64; 761 if (surf->height < 64) 762 surf->height = 64; 763 surf->format = SPICE_SURFACE_FMT_32_xRGB; 764 surf->stride = surf->width * 4; 765 766 if (!qdev->dumb_shadow_bo || 767 qdev->dumb_shadow_bo->surf.width != surf->width || 768 qdev->dumb_shadow_bo->surf.height != surf->height) 769 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 770 } 771 772 static int qxl_plane_prepare_fb(struct drm_plane *plane, 773 struct drm_plane_state *new_state) 774 { 775 struct qxl_device *qdev = to_qxl(plane->dev); 776 struct drm_gem_object *obj; 777 struct qxl_bo *user_bo; 778 struct qxl_surface surf; 779 780 if (!new_state->fb) 781 return 0; 782 783 obj = new_state->fb->obj[0]; 784 user_bo = gem_to_qxl_bo(obj); 785 786 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 787 user_bo->is_dumb) { 788 qxl_update_dumb_head(qdev, new_state->crtc->index, 789 user_bo); 790 qxl_calc_dumb_shadow(qdev, &surf); 791 if (!qdev->dumb_shadow_bo || 792 qdev->dumb_shadow_bo->surf.width != surf.width || 793 qdev->dumb_shadow_bo->surf.height != surf.height) { 794 if (qdev->dumb_shadow_bo) { 795 drm_gem_object_put 796 (&qdev->dumb_shadow_bo->tbo.base); 797 qdev->dumb_shadow_bo = NULL; 798 } 799 qxl_bo_create(qdev, surf.height * surf.stride, 800 true, true, QXL_GEM_DOMAIN_SURFACE, &surf, 801 &qdev->dumb_shadow_bo); 802 } 803 if (user_bo->shadow != qdev->dumb_shadow_bo) { 804 if (user_bo->shadow) { 805 drm_gem_object_put 806 (&user_bo->shadow->tbo.base); 807 user_bo->shadow = NULL; 808 } 809 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 810 user_bo->shadow = qdev->dumb_shadow_bo; 811 } 812 } 813 814 return qxl_bo_pin(user_bo); 815 } 816 817 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 818 struct drm_plane_state *old_state) 819 { 820 struct drm_gem_object *obj; 821 struct qxl_bo *user_bo; 822 823 if (!old_state->fb) { 824 /* 825 * we never executed prepare_fb, so there's nothing to 826 * unpin. 827 */ 828 return; 829 } 830 831 obj = old_state->fb->obj[0]; 832 user_bo = gem_to_qxl_bo(obj); 833 qxl_bo_unpin(user_bo); 834 835 if (old_state->fb != plane->state->fb && user_bo->shadow) { 836 drm_gem_object_put(&user_bo->shadow->tbo.base); 837 user_bo->shadow = NULL; 838 } 839 } 840 841 static const uint32_t qxl_cursor_plane_formats[] = { 842 DRM_FORMAT_ARGB8888, 843 }; 844 845 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 846 .atomic_update = qxl_cursor_atomic_update, 847 .atomic_disable = qxl_cursor_atomic_disable, 848 .prepare_fb = qxl_plane_prepare_fb, 849 .cleanup_fb = qxl_plane_cleanup_fb, 850 }; 851 852 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 853 .update_plane = drm_atomic_helper_update_plane, 854 .disable_plane = drm_atomic_helper_disable_plane, 855 .destroy = drm_primary_helper_destroy, 856 .reset = drm_atomic_helper_plane_reset, 857 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 858 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 859 }; 860 861 static const uint32_t qxl_primary_plane_formats[] = { 862 DRM_FORMAT_XRGB8888, 863 DRM_FORMAT_ARGB8888, 864 }; 865 866 static const struct drm_plane_helper_funcs primary_helper_funcs = { 867 .atomic_check = qxl_primary_atomic_check, 868 .atomic_update = qxl_primary_atomic_update, 869 .atomic_disable = qxl_primary_atomic_disable, 870 .prepare_fb = qxl_plane_prepare_fb, 871 .cleanup_fb = qxl_plane_cleanup_fb, 872 }; 873 874 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 875 .update_plane = drm_atomic_helper_update_plane, 876 .disable_plane = drm_atomic_helper_disable_plane, 877 .destroy = drm_primary_helper_destroy, 878 .reset = drm_atomic_helper_plane_reset, 879 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 880 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 881 }; 882 883 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 884 unsigned int possible_crtcs, 885 enum drm_plane_type type) 886 { 887 const struct drm_plane_helper_funcs *helper_funcs = NULL; 888 struct drm_plane *plane; 889 const struct drm_plane_funcs *funcs; 890 const uint32_t *formats; 891 int num_formats; 892 int err; 893 894 if (type == DRM_PLANE_TYPE_PRIMARY) { 895 funcs = &qxl_primary_plane_funcs; 896 formats = qxl_primary_plane_formats; 897 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 898 helper_funcs = &primary_helper_funcs; 899 } else if (type == DRM_PLANE_TYPE_CURSOR) { 900 funcs = &qxl_cursor_plane_funcs; 901 formats = qxl_cursor_plane_formats; 902 helper_funcs = &qxl_cursor_helper_funcs; 903 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 904 } else { 905 return ERR_PTR(-EINVAL); 906 } 907 908 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 909 if (!plane) 910 return ERR_PTR(-ENOMEM); 911 912 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 913 funcs, formats, num_formats, 914 NULL, type, NULL); 915 if (err) 916 goto free_plane; 917 918 drm_plane_helper_add(plane, helper_funcs); 919 920 return plane; 921 922 free_plane: 923 kfree(plane); 924 return ERR_PTR(-EINVAL); 925 } 926 927 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 928 { 929 struct qxl_crtc *qxl_crtc; 930 struct drm_plane *primary, *cursor; 931 struct qxl_device *qdev = to_qxl(dev); 932 int r; 933 934 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 935 if (!qxl_crtc) 936 return -ENOMEM; 937 938 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 939 if (IS_ERR(primary)) { 940 r = -ENOMEM; 941 goto free_mem; 942 } 943 944 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 945 if (IS_ERR(cursor)) { 946 r = -ENOMEM; 947 goto clean_primary; 948 } 949 950 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 951 &qxl_crtc_funcs, NULL); 952 if (r) 953 goto clean_cursor; 954 955 qxl_crtc->index = crtc_id; 956 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 957 return 0; 958 959 clean_cursor: 960 drm_plane_cleanup(cursor); 961 kfree(cursor); 962 clean_primary: 963 drm_plane_cleanup(primary); 964 kfree(primary); 965 free_mem: 966 kfree(qxl_crtc); 967 return r; 968 } 969 970 static int qxl_conn_get_modes(struct drm_connector *connector) 971 { 972 struct drm_device *dev = connector->dev; 973 struct qxl_device *qdev = to_qxl(dev); 974 struct qxl_output *output = drm_connector_to_qxl_output(connector); 975 unsigned int pwidth = 1024; 976 unsigned int pheight = 768; 977 int ret = 0; 978 979 if (qdev->client_monitors_config) { 980 struct qxl_head *head; 981 head = &qdev->client_monitors_config->heads[output->index]; 982 if (head->width) 983 pwidth = head->width; 984 if (head->height) 985 pheight = head->height; 986 } 987 988 ret += drm_add_modes_noedid(connector, 8192, 8192); 989 ret += qxl_add_extra_modes(connector); 990 ret += qxl_add_monitors_config_modes(connector); 991 drm_set_preferred_mode(connector, pwidth, pheight); 992 return ret; 993 } 994 995 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 996 struct drm_display_mode *mode) 997 { 998 struct drm_device *ddev = connector->dev; 999 struct qxl_device *qdev = to_qxl(ddev); 1000 1001 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 1002 return MODE_BAD; 1003 1004 return MODE_OK; 1005 } 1006 1007 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1008 { 1009 struct qxl_output *qxl_output = 1010 drm_connector_to_qxl_output(connector); 1011 1012 DRM_DEBUG("\n"); 1013 return &qxl_output->enc; 1014 } 1015 1016 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1017 .get_modes = qxl_conn_get_modes, 1018 .mode_valid = qxl_conn_mode_valid, 1019 .best_encoder = qxl_best_encoder, 1020 }; 1021 1022 static enum drm_connector_status qxl_conn_detect( 1023 struct drm_connector *connector, 1024 bool force) 1025 { 1026 struct qxl_output *output = 1027 drm_connector_to_qxl_output(connector); 1028 struct drm_device *ddev = connector->dev; 1029 struct qxl_device *qdev = to_qxl(ddev); 1030 bool connected = false; 1031 1032 /* The first monitor is always connected */ 1033 if (!qdev->client_monitors_config) { 1034 if (output->index == 0) 1035 connected = true; 1036 } else 1037 connected = qdev->client_monitors_config->count > output->index && 1038 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1039 1040 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1041 1042 return connected ? connector_status_connected 1043 : connector_status_disconnected; 1044 } 1045 1046 static void qxl_conn_destroy(struct drm_connector *connector) 1047 { 1048 struct qxl_output *qxl_output = 1049 drm_connector_to_qxl_output(connector); 1050 1051 drm_connector_unregister(connector); 1052 drm_connector_cleanup(connector); 1053 kfree(qxl_output); 1054 } 1055 1056 static const struct drm_connector_funcs qxl_connector_funcs = { 1057 .detect = qxl_conn_detect, 1058 .fill_modes = drm_helper_probe_single_connector_modes, 1059 .destroy = qxl_conn_destroy, 1060 .reset = drm_atomic_helper_connector_reset, 1061 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1062 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1063 }; 1064 1065 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1066 { 1067 if (qdev->hotplug_mode_update_property) 1068 return 0; 1069 1070 qdev->hotplug_mode_update_property = 1071 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1072 "hotplug_mode_update", 0, 1); 1073 1074 return 0; 1075 } 1076 1077 static int qdev_output_init(struct drm_device *dev, int num_output) 1078 { 1079 struct qxl_device *qdev = to_qxl(dev); 1080 struct qxl_output *qxl_output; 1081 struct drm_connector *connector; 1082 struct drm_encoder *encoder; 1083 int ret; 1084 1085 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1086 if (!qxl_output) 1087 return -ENOMEM; 1088 1089 qxl_output->index = num_output; 1090 1091 connector = &qxl_output->base; 1092 encoder = &qxl_output->enc; 1093 drm_connector_init(dev, &qxl_output->base, 1094 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1095 1096 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1097 DRM_MODE_ENCODER_VIRTUAL); 1098 if (ret) { 1099 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1100 ret); 1101 goto err_drm_connector_cleanup; 1102 } 1103 1104 /* we get HPD via client monitors config */ 1105 connector->polled = DRM_CONNECTOR_POLL_HPD; 1106 encoder->possible_crtcs = 1 << num_output; 1107 drm_connector_attach_encoder(&qxl_output->base, 1108 &qxl_output->enc); 1109 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1110 1111 drm_object_attach_property(&connector->base, 1112 qdev->hotplug_mode_update_property, 0); 1113 drm_object_attach_property(&connector->base, 1114 dev->mode_config.suggested_x_property, 0); 1115 drm_object_attach_property(&connector->base, 1116 dev->mode_config.suggested_y_property, 0); 1117 return 0; 1118 1119 err_drm_connector_cleanup: 1120 drm_connector_cleanup(&qxl_output->base); 1121 kfree(qxl_output); 1122 return ret; 1123 } 1124 1125 static struct drm_framebuffer * 1126 qxl_user_framebuffer_create(struct drm_device *dev, 1127 struct drm_file *file_priv, 1128 const struct drm_mode_fb_cmd2 *mode_cmd) 1129 { 1130 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1131 &qxl_fb_funcs); 1132 } 1133 1134 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1135 .fb_create = qxl_user_framebuffer_create, 1136 .atomic_check = drm_atomic_helper_check, 1137 .atomic_commit = drm_atomic_helper_commit, 1138 }; 1139 1140 int qxl_create_monitors_object(struct qxl_device *qdev) 1141 { 1142 int ret; 1143 struct drm_gem_object *gobj; 1144 struct dma_buf_map map; 1145 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1146 qxl_num_crtc * sizeof(struct qxl_head); 1147 1148 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1149 QXL_GEM_DOMAIN_VRAM, 1150 false, false, NULL, &gobj); 1151 if (ret) { 1152 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1153 return -ENOMEM; 1154 } 1155 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1156 1157 ret = qxl_bo_pin(qdev->monitors_config_bo); 1158 if (ret) 1159 return ret; 1160 1161 qxl_bo_kmap(qdev->monitors_config_bo, &map); 1162 1163 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1164 qdev->ram_header->monitors_config = 1165 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1166 1167 memset(qdev->monitors_config, 0, monitors_config_size); 1168 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1169 GFP_KERNEL); 1170 if (!qdev->dumb_heads) { 1171 qxl_destroy_monitors_object(qdev); 1172 return -ENOMEM; 1173 } 1174 return 0; 1175 } 1176 1177 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1178 { 1179 int ret; 1180 1181 qdev->monitors_config = NULL; 1182 qdev->ram_header->monitors_config = 0; 1183 1184 qxl_bo_kunmap(qdev->monitors_config_bo); 1185 ret = qxl_bo_unpin(qdev->monitors_config_bo); 1186 if (ret) 1187 return ret; 1188 1189 qxl_bo_unref(&qdev->monitors_config_bo); 1190 return 0; 1191 } 1192 1193 int qxl_modeset_init(struct qxl_device *qdev) 1194 { 1195 int i; 1196 int ret; 1197 1198 drm_mode_config_init(&qdev->ddev); 1199 1200 ret = qxl_create_monitors_object(qdev); 1201 if (ret) 1202 return ret; 1203 1204 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1205 1206 /* modes will be validated against the framebuffer size */ 1207 qdev->ddev.mode_config.min_width = 0; 1208 qdev->ddev.mode_config.min_height = 0; 1209 qdev->ddev.mode_config.max_width = 8192; 1210 qdev->ddev.mode_config.max_height = 8192; 1211 1212 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1213 1214 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1215 qxl_mode_create_hotplug_mode_update_property(qdev); 1216 1217 for (i = 0 ; i < qxl_num_crtc; ++i) { 1218 qdev_crtc_init(&qdev->ddev, i); 1219 qdev_output_init(&qdev->ddev, i); 1220 } 1221 1222 qxl_display_read_client_monitors_config(qdev); 1223 1224 drm_mode_config_reset(&qdev->ddev); 1225 return 0; 1226 } 1227 1228 void qxl_modeset_fini(struct qxl_device *qdev) 1229 { 1230 qxl_destroy_monitors_object(qdev); 1231 drm_mode_config_cleanup(&qdev->ddev); 1232 } 1233