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 head.surface_id = 0; 332 oldcount = qdev->monitors_config->count; 333 if (crtc->state->active) { 334 struct drm_display_mode *mode = &crtc->mode; 335 336 head.width = mode->hdisplay; 337 head.height = mode->vdisplay; 338 head.x = crtc->x; 339 head.y = crtc->y; 340 if (qdev->monitors_config->count < i + 1) 341 qdev->monitors_config->count = i + 1; 342 if (qdev->primary_bo == qdev->dumb_shadow_bo) 343 head.x += qdev->dumb_heads[i].x; 344 } else if (i > 0) { 345 head.width = 0; 346 head.height = 0; 347 head.x = 0; 348 head.y = 0; 349 if (qdev->monitors_config->count == i + 1) 350 qdev->monitors_config->count = i; 351 } else { 352 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); 353 return; 354 } 355 356 if (head.width == qdev->monitors_config->heads[i].width && 357 head.height == qdev->monitors_config->heads[i].height && 358 head.x == qdev->monitors_config->heads[i].x && 359 head.y == qdev->monitors_config->heads[i].y && 360 oldcount == qdev->monitors_config->count) 361 return; 362 363 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", 364 i, head.width, head.height, head.x, head.y, 365 crtc->state->active ? "on" : "off", reason); 366 if (oldcount != qdev->monitors_config->count) 367 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", 368 oldcount, qdev->monitors_config->count, 369 qxl_num_crtc); 370 371 qdev->monitors_config->heads[i] = head; 372 qdev->monitors_config->max_allowed = qxl_num_crtc; 373 qxl_send_monitors_config(qdev); 374 } 375 376 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, 377 struct drm_atomic_state *state) 378 { 379 qxl_crtc_update_monitors_config(crtc, "flush"); 380 } 381 382 static void qxl_crtc_destroy(struct drm_crtc *crtc) 383 { 384 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 385 386 qxl_bo_unref(&qxl_crtc->cursor_bo); 387 drm_crtc_cleanup(crtc); 388 kfree(qxl_crtc); 389 } 390 391 static const struct drm_crtc_funcs qxl_crtc_funcs = { 392 .set_config = drm_atomic_helper_set_config, 393 .destroy = qxl_crtc_destroy, 394 .page_flip = drm_atomic_helper_page_flip, 395 .reset = drm_atomic_helper_crtc_reset, 396 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 397 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 398 }; 399 400 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 401 struct drm_file *file_priv, 402 unsigned int flags, unsigned int color, 403 struct drm_clip_rect *clips, 404 unsigned int num_clips) 405 { 406 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 407 struct qxl_device *qdev = to_qxl(fb->dev); 408 struct drm_clip_rect norect; 409 struct qxl_bo *qobj; 410 struct drm_modeset_acquire_ctx ctx; 411 bool is_primary; 412 int inc = 1, ret; 413 414 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 415 416 qobj = gem_to_qxl_bo(fb->obj[0]); 417 /* if we aren't primary surface ignore this */ 418 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 419 if (!is_primary) 420 goto out_lock_end; 421 422 if (!num_clips) { 423 num_clips = 1; 424 clips = &norect; 425 norect.x1 = norect.y1 = 0; 426 norect.x2 = fb->width; 427 norect.y2 = fb->height; 428 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 429 num_clips /= 2; 430 inc = 2; /* skip source rects */ 431 } 432 433 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, 434 clips, num_clips, inc, 0); 435 436 out_lock_end: 437 DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret); 438 439 return 0; 440 } 441 442 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 443 .destroy = drm_gem_fb_destroy, 444 .dirty = qxl_framebuffer_surface_dirty, 445 .create_handle = drm_gem_fb_create_handle, 446 }; 447 448 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 449 struct drm_atomic_state *state) 450 { 451 qxl_crtc_update_monitors_config(crtc, "enable"); 452 } 453 454 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 455 struct drm_atomic_state *state) 456 { 457 qxl_crtc_update_monitors_config(crtc, "disable"); 458 } 459 460 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 461 .atomic_flush = qxl_crtc_atomic_flush, 462 .atomic_enable = qxl_crtc_atomic_enable, 463 .atomic_disable = qxl_crtc_atomic_disable, 464 }; 465 466 static int qxl_primary_atomic_check(struct drm_plane *plane, 467 struct drm_plane_state *state) 468 { 469 struct qxl_device *qdev = to_qxl(plane->dev); 470 struct qxl_bo *bo; 471 472 if (!state->crtc || !state->fb) 473 return 0; 474 475 bo = gem_to_qxl_bo(state->fb->obj[0]); 476 477 return qxl_check_framebuffer(qdev, bo); 478 } 479 480 static int qxl_primary_apply_cursor(struct drm_plane *plane) 481 { 482 struct drm_device *dev = plane->dev; 483 struct qxl_device *qdev = to_qxl(dev); 484 struct drm_framebuffer *fb = plane->state->fb; 485 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 486 struct qxl_cursor_cmd *cmd; 487 struct qxl_release *release; 488 int ret = 0; 489 490 if (!qcrtc->cursor_bo) 491 return 0; 492 493 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 494 QXL_RELEASE_CURSOR_CMD, 495 &release, NULL); 496 if (ret) 497 return ret; 498 499 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 500 if (ret) 501 goto out_free_release; 502 503 ret = qxl_release_reserve_list(release, false); 504 if (ret) 505 goto out_free_release; 506 507 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 508 cmd->type = QXL_CURSOR_SET; 509 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x; 510 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y; 511 512 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 513 514 cmd->u.set.visible = 1; 515 qxl_release_unmap(qdev, release, &cmd->release_info); 516 517 qxl_release_fence_buffer_objects(release); 518 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 519 520 return ret; 521 522 out_free_release: 523 qxl_release_free(qdev, release); 524 return ret; 525 } 526 527 static void qxl_primary_atomic_update(struct drm_plane *plane, 528 struct drm_plane_state *old_state) 529 { 530 struct qxl_device *qdev = to_qxl(plane->dev); 531 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]); 532 struct qxl_bo *primary; 533 struct drm_clip_rect norect = { 534 .x1 = 0, 535 .y1 = 0, 536 .x2 = plane->state->fb->width, 537 .y2 = plane->state->fb->height 538 }; 539 uint32_t dumb_shadow_offset = 0; 540 541 primary = bo->shadow ? bo->shadow : bo; 542 543 if (!primary->is_primary) { 544 if (qdev->primary_bo) 545 qxl_io_destroy_primary(qdev); 546 qxl_io_create_primary(qdev, primary); 547 qxl_primary_apply_cursor(plane); 548 } 549 550 if (bo->is_dumb) 551 dumb_shadow_offset = 552 qdev->dumb_heads[plane->state->crtc->index].x; 553 554 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1, 555 dumb_shadow_offset); 556 } 557 558 static void qxl_primary_atomic_disable(struct drm_plane *plane, 559 struct drm_plane_state *old_state) 560 { 561 struct qxl_device *qdev = to_qxl(plane->dev); 562 563 if (old_state->fb) { 564 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 565 566 if (bo->is_primary) { 567 qxl_io_destroy_primary(qdev); 568 bo->is_primary = false; 569 } 570 } 571 } 572 573 static void qxl_cursor_atomic_update(struct drm_plane *plane, 574 struct drm_plane_state *old_state) 575 { 576 struct drm_device *dev = plane->dev; 577 struct qxl_device *qdev = to_qxl(dev); 578 struct drm_framebuffer *fb = plane->state->fb; 579 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc); 580 struct qxl_release *release; 581 struct qxl_cursor_cmd *cmd; 582 struct qxl_cursor *cursor; 583 struct drm_gem_object *obj; 584 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL; 585 int ret; 586 struct dma_buf_map user_map; 587 struct dma_buf_map cursor_map; 588 void *user_ptr; 589 int size = 64*64*4; 590 591 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 592 QXL_RELEASE_CURSOR_CMD, 593 &release, NULL); 594 if (ret) 595 return; 596 597 if (fb != old_state->fb) { 598 obj = fb->obj[0]; 599 user_bo = gem_to_qxl_bo(obj); 600 601 /* pinning is done in the prepare/cleanup framevbuffer */ 602 ret = qxl_bo_kmap(user_bo, &user_map); 603 if (ret) 604 goto out_free_release; 605 user_ptr = user_map.vaddr; /* TODO: Use mapping abstraction properly */ 606 607 ret = qxl_alloc_bo_reserved(qdev, release, 608 sizeof(struct qxl_cursor) + size, 609 &cursor_bo); 610 if (ret) 611 goto out_kunmap; 612 613 ret = qxl_bo_pin(cursor_bo); 614 if (ret) 615 goto out_free_bo; 616 617 ret = qxl_release_reserve_list(release, true); 618 if (ret) 619 goto out_unpin; 620 621 ret = qxl_bo_kmap(cursor_bo, &cursor_map); 622 if (ret) 623 goto out_backoff; 624 if (cursor_map.is_iomem) /* TODO: Use mapping abstraction properly */ 625 cursor = (struct qxl_cursor __force *)cursor_map.vaddr_iomem; 626 else 627 cursor = (struct qxl_cursor *)cursor_map.vaddr; 628 629 cursor->header.unique = 0; 630 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; 631 cursor->header.width = 64; 632 cursor->header.height = 64; 633 cursor->header.hot_spot_x = fb->hot_x; 634 cursor->header.hot_spot_y = fb->hot_y; 635 cursor->data_size = size; 636 cursor->chunk.next_chunk = 0; 637 cursor->chunk.prev_chunk = 0; 638 cursor->chunk.data_size = size; 639 memcpy(cursor->chunk.data, user_ptr, size); 640 qxl_bo_kunmap(cursor_bo); 641 qxl_bo_kunmap(user_bo); 642 643 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 644 cmd->u.set.visible = 1; 645 cmd->u.set.shape = qxl_bo_physical_address(qdev, 646 cursor_bo, 0); 647 cmd->type = QXL_CURSOR_SET; 648 649 old_cursor_bo = qcrtc->cursor_bo; 650 qcrtc->cursor_bo = cursor_bo; 651 cursor_bo = NULL; 652 } else { 653 654 ret = qxl_release_reserve_list(release, true); 655 if (ret) 656 goto out_free_release; 657 658 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release); 659 cmd->type = QXL_CURSOR_MOVE; 660 } 661 662 cmd->u.position.x = plane->state->crtc_x + fb->hot_x; 663 cmd->u.position.y = plane->state->crtc_y + fb->hot_y; 664 665 qxl_release_unmap(qdev, release, &cmd->release_info); 666 qxl_release_fence_buffer_objects(release); 667 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 668 669 if (old_cursor_bo != NULL) 670 qxl_bo_unpin(old_cursor_bo); 671 qxl_bo_unref(&old_cursor_bo); 672 qxl_bo_unref(&cursor_bo); 673 674 return; 675 676 out_backoff: 677 qxl_release_backoff_reserve_list(release); 678 out_unpin: 679 qxl_bo_unpin(cursor_bo); 680 out_free_bo: 681 qxl_bo_unref(&cursor_bo); 682 out_kunmap: 683 qxl_bo_kunmap(user_bo); 684 out_free_release: 685 qxl_release_free(qdev, release); 686 return; 687 688 } 689 690 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 691 struct drm_plane_state *old_state) 692 { 693 struct qxl_device *qdev = to_qxl(plane->dev); 694 struct qxl_release *release; 695 struct qxl_cursor_cmd *cmd; 696 int ret; 697 698 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 699 QXL_RELEASE_CURSOR_CMD, 700 &release, NULL); 701 if (ret) 702 return; 703 704 ret = qxl_release_reserve_list(release, true); 705 if (ret) { 706 qxl_release_free(qdev, release); 707 return; 708 } 709 710 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 711 cmd->type = QXL_CURSOR_HIDE; 712 qxl_release_unmap(qdev, release, &cmd->release_info); 713 714 qxl_release_fence_buffer_objects(release); 715 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 716 } 717 718 static void qxl_update_dumb_head(struct qxl_device *qdev, 719 int index, struct qxl_bo *bo) 720 { 721 uint32_t width, height; 722 723 if (index >= qdev->monitors_config->max_allowed) 724 return; 725 726 if (bo && bo->is_dumb) { 727 width = bo->surf.width; 728 height = bo->surf.height; 729 } else { 730 width = 0; 731 height = 0; 732 } 733 734 if (qdev->dumb_heads[index].width == width && 735 qdev->dumb_heads[index].height == height) 736 return; 737 738 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 739 qdev->dumb_heads[index].width, 740 qdev->dumb_heads[index].height, 741 width, height); 742 qdev->dumb_heads[index].width = width; 743 qdev->dumb_heads[index].height = height; 744 } 745 746 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 747 struct qxl_surface *surf) 748 { 749 struct qxl_head *head; 750 int i; 751 752 memset(surf, 0, sizeof(*surf)); 753 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 754 head = qdev->dumb_heads + i; 755 head->x = surf->width; 756 surf->width += head->width; 757 if (surf->height < head->height) 758 surf->height = head->height; 759 } 760 if (surf->width < 64) 761 surf->width = 64; 762 if (surf->height < 64) 763 surf->height = 64; 764 surf->format = SPICE_SURFACE_FMT_32_xRGB; 765 surf->stride = surf->width * 4; 766 767 if (!qdev->dumb_shadow_bo || 768 qdev->dumb_shadow_bo->surf.width != surf->width || 769 qdev->dumb_shadow_bo->surf.height != surf->height) 770 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 771 } 772 773 static int qxl_plane_prepare_fb(struct drm_plane *plane, 774 struct drm_plane_state *new_state) 775 { 776 struct qxl_device *qdev = to_qxl(plane->dev); 777 struct drm_gem_object *obj; 778 struct qxl_bo *user_bo; 779 struct qxl_surface surf; 780 781 if (!new_state->fb) 782 return 0; 783 784 obj = new_state->fb->obj[0]; 785 user_bo = gem_to_qxl_bo(obj); 786 787 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 788 user_bo->is_dumb) { 789 qxl_update_dumb_head(qdev, new_state->crtc->index, 790 user_bo); 791 qxl_calc_dumb_shadow(qdev, &surf); 792 if (!qdev->dumb_shadow_bo || 793 qdev->dumb_shadow_bo->surf.width != surf.width || 794 qdev->dumb_shadow_bo->surf.height != surf.height) { 795 if (qdev->dumb_shadow_bo) { 796 drm_gem_object_put 797 (&qdev->dumb_shadow_bo->tbo.base); 798 qdev->dumb_shadow_bo = NULL; 799 } 800 qxl_bo_create(qdev, surf.height * surf.stride, 801 true, true, QXL_GEM_DOMAIN_SURFACE, &surf, 802 &qdev->dumb_shadow_bo); 803 } 804 if (user_bo->shadow != qdev->dumb_shadow_bo) { 805 if (user_bo->shadow) { 806 drm_gem_object_put 807 (&user_bo->shadow->tbo.base); 808 user_bo->shadow = NULL; 809 } 810 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 811 user_bo->shadow = qdev->dumb_shadow_bo; 812 } 813 } 814 815 return qxl_bo_pin(user_bo); 816 } 817 818 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 819 struct drm_plane_state *old_state) 820 { 821 struct drm_gem_object *obj; 822 struct qxl_bo *user_bo; 823 824 if (!old_state->fb) { 825 /* 826 * we never executed prepare_fb, so there's nothing to 827 * unpin. 828 */ 829 return; 830 } 831 832 obj = old_state->fb->obj[0]; 833 user_bo = gem_to_qxl_bo(obj); 834 qxl_bo_unpin(user_bo); 835 836 if (old_state->fb != plane->state->fb && user_bo->shadow) { 837 drm_gem_object_put(&user_bo->shadow->tbo.base); 838 user_bo->shadow = NULL; 839 } 840 } 841 842 static const uint32_t qxl_cursor_plane_formats[] = { 843 DRM_FORMAT_ARGB8888, 844 }; 845 846 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 847 .atomic_update = qxl_cursor_atomic_update, 848 .atomic_disable = qxl_cursor_atomic_disable, 849 .prepare_fb = qxl_plane_prepare_fb, 850 .cleanup_fb = qxl_plane_cleanup_fb, 851 }; 852 853 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 854 .update_plane = drm_atomic_helper_update_plane, 855 .disable_plane = drm_atomic_helper_disable_plane, 856 .destroy = drm_primary_helper_destroy, 857 .reset = drm_atomic_helper_plane_reset, 858 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 859 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 860 }; 861 862 static const uint32_t qxl_primary_plane_formats[] = { 863 DRM_FORMAT_XRGB8888, 864 DRM_FORMAT_ARGB8888, 865 }; 866 867 static const struct drm_plane_helper_funcs primary_helper_funcs = { 868 .atomic_check = qxl_primary_atomic_check, 869 .atomic_update = qxl_primary_atomic_update, 870 .atomic_disable = qxl_primary_atomic_disable, 871 .prepare_fb = qxl_plane_prepare_fb, 872 .cleanup_fb = qxl_plane_cleanup_fb, 873 }; 874 875 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 876 .update_plane = drm_atomic_helper_update_plane, 877 .disable_plane = drm_atomic_helper_disable_plane, 878 .destroy = drm_primary_helper_destroy, 879 .reset = drm_atomic_helper_plane_reset, 880 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 881 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 882 }; 883 884 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 885 unsigned int possible_crtcs, 886 enum drm_plane_type type) 887 { 888 const struct drm_plane_helper_funcs *helper_funcs = NULL; 889 struct drm_plane *plane; 890 const struct drm_plane_funcs *funcs; 891 const uint32_t *formats; 892 int num_formats; 893 int err; 894 895 if (type == DRM_PLANE_TYPE_PRIMARY) { 896 funcs = &qxl_primary_plane_funcs; 897 formats = qxl_primary_plane_formats; 898 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 899 helper_funcs = &primary_helper_funcs; 900 } else if (type == DRM_PLANE_TYPE_CURSOR) { 901 funcs = &qxl_cursor_plane_funcs; 902 formats = qxl_cursor_plane_formats; 903 helper_funcs = &qxl_cursor_helper_funcs; 904 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 905 } else { 906 return ERR_PTR(-EINVAL); 907 } 908 909 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 910 if (!plane) 911 return ERR_PTR(-ENOMEM); 912 913 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 914 funcs, formats, num_formats, 915 NULL, type, NULL); 916 if (err) 917 goto free_plane; 918 919 drm_plane_helper_add(plane, helper_funcs); 920 921 return plane; 922 923 free_plane: 924 kfree(plane); 925 return ERR_PTR(-EINVAL); 926 } 927 928 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 929 { 930 struct qxl_crtc *qxl_crtc; 931 struct drm_plane *primary, *cursor; 932 struct qxl_device *qdev = to_qxl(dev); 933 int r; 934 935 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 936 if (!qxl_crtc) 937 return -ENOMEM; 938 939 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 940 if (IS_ERR(primary)) { 941 r = -ENOMEM; 942 goto free_mem; 943 } 944 945 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 946 if (IS_ERR(cursor)) { 947 r = -ENOMEM; 948 goto clean_primary; 949 } 950 951 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 952 &qxl_crtc_funcs, NULL); 953 if (r) 954 goto clean_cursor; 955 956 qxl_crtc->index = crtc_id; 957 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 958 return 0; 959 960 clean_cursor: 961 drm_plane_cleanup(cursor); 962 kfree(cursor); 963 clean_primary: 964 drm_plane_cleanup(primary); 965 kfree(primary); 966 free_mem: 967 kfree(qxl_crtc); 968 return r; 969 } 970 971 static int qxl_conn_get_modes(struct drm_connector *connector) 972 { 973 struct drm_device *dev = connector->dev; 974 struct qxl_device *qdev = to_qxl(dev); 975 struct qxl_output *output = drm_connector_to_qxl_output(connector); 976 unsigned int pwidth = 1024; 977 unsigned int pheight = 768; 978 int ret = 0; 979 980 if (qdev->client_monitors_config) { 981 struct qxl_head *head; 982 head = &qdev->client_monitors_config->heads[output->index]; 983 if (head->width) 984 pwidth = head->width; 985 if (head->height) 986 pheight = head->height; 987 } 988 989 ret += drm_add_modes_noedid(connector, 8192, 8192); 990 ret += qxl_add_extra_modes(connector); 991 ret += qxl_add_monitors_config_modes(connector); 992 drm_set_preferred_mode(connector, pwidth, pheight); 993 return ret; 994 } 995 996 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 997 struct drm_display_mode *mode) 998 { 999 struct drm_device *ddev = connector->dev; 1000 struct qxl_device *qdev = to_qxl(ddev); 1001 1002 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 1003 return MODE_BAD; 1004 1005 return MODE_OK; 1006 } 1007 1008 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1009 { 1010 struct qxl_output *qxl_output = 1011 drm_connector_to_qxl_output(connector); 1012 1013 DRM_DEBUG("\n"); 1014 return &qxl_output->enc; 1015 } 1016 1017 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1018 .get_modes = qxl_conn_get_modes, 1019 .mode_valid = qxl_conn_mode_valid, 1020 .best_encoder = qxl_best_encoder, 1021 }; 1022 1023 static enum drm_connector_status qxl_conn_detect( 1024 struct drm_connector *connector, 1025 bool force) 1026 { 1027 struct qxl_output *output = 1028 drm_connector_to_qxl_output(connector); 1029 struct drm_device *ddev = connector->dev; 1030 struct qxl_device *qdev = to_qxl(ddev); 1031 bool connected = false; 1032 1033 /* The first monitor is always connected */ 1034 if (!qdev->client_monitors_config) { 1035 if (output->index == 0) 1036 connected = true; 1037 } else 1038 connected = qdev->client_monitors_config->count > output->index && 1039 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1040 1041 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1042 1043 return connected ? connector_status_connected 1044 : connector_status_disconnected; 1045 } 1046 1047 static void qxl_conn_destroy(struct drm_connector *connector) 1048 { 1049 struct qxl_output *qxl_output = 1050 drm_connector_to_qxl_output(connector); 1051 1052 drm_connector_unregister(connector); 1053 drm_connector_cleanup(connector); 1054 kfree(qxl_output); 1055 } 1056 1057 static const struct drm_connector_funcs qxl_connector_funcs = { 1058 .detect = qxl_conn_detect, 1059 .fill_modes = drm_helper_probe_single_connector_modes, 1060 .destroy = qxl_conn_destroy, 1061 .reset = drm_atomic_helper_connector_reset, 1062 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1063 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1064 }; 1065 1066 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1067 { 1068 if (qdev->hotplug_mode_update_property) 1069 return 0; 1070 1071 qdev->hotplug_mode_update_property = 1072 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1073 "hotplug_mode_update", 0, 1); 1074 1075 return 0; 1076 } 1077 1078 static int qdev_output_init(struct drm_device *dev, int num_output) 1079 { 1080 struct qxl_device *qdev = to_qxl(dev); 1081 struct qxl_output *qxl_output; 1082 struct drm_connector *connector; 1083 struct drm_encoder *encoder; 1084 int ret; 1085 1086 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1087 if (!qxl_output) 1088 return -ENOMEM; 1089 1090 qxl_output->index = num_output; 1091 1092 connector = &qxl_output->base; 1093 encoder = &qxl_output->enc; 1094 drm_connector_init(dev, &qxl_output->base, 1095 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1096 1097 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1098 DRM_MODE_ENCODER_VIRTUAL); 1099 if (ret) { 1100 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1101 ret); 1102 goto err_drm_connector_cleanup; 1103 } 1104 1105 /* we get HPD via client monitors config */ 1106 connector->polled = DRM_CONNECTOR_POLL_HPD; 1107 encoder->possible_crtcs = 1 << num_output; 1108 drm_connector_attach_encoder(&qxl_output->base, 1109 &qxl_output->enc); 1110 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1111 1112 drm_object_attach_property(&connector->base, 1113 qdev->hotplug_mode_update_property, 0); 1114 drm_object_attach_property(&connector->base, 1115 dev->mode_config.suggested_x_property, 0); 1116 drm_object_attach_property(&connector->base, 1117 dev->mode_config.suggested_y_property, 0); 1118 return 0; 1119 1120 err_drm_connector_cleanup: 1121 drm_connector_cleanup(&qxl_output->base); 1122 kfree(qxl_output); 1123 return ret; 1124 } 1125 1126 static struct drm_framebuffer * 1127 qxl_user_framebuffer_create(struct drm_device *dev, 1128 struct drm_file *file_priv, 1129 const struct drm_mode_fb_cmd2 *mode_cmd) 1130 { 1131 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1132 &qxl_fb_funcs); 1133 } 1134 1135 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1136 .fb_create = qxl_user_framebuffer_create, 1137 .atomic_check = drm_atomic_helper_check, 1138 .atomic_commit = drm_atomic_helper_commit, 1139 }; 1140 1141 int qxl_create_monitors_object(struct qxl_device *qdev) 1142 { 1143 int ret; 1144 struct drm_gem_object *gobj; 1145 struct dma_buf_map map; 1146 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1147 qxl_num_crtc * sizeof(struct qxl_head); 1148 1149 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1150 QXL_GEM_DOMAIN_VRAM, 1151 false, false, NULL, &gobj); 1152 if (ret) { 1153 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1154 return -ENOMEM; 1155 } 1156 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1157 1158 ret = qxl_bo_pin(qdev->monitors_config_bo); 1159 if (ret) 1160 return ret; 1161 1162 qxl_bo_kmap(qdev->monitors_config_bo, &map); 1163 1164 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1165 qdev->ram_header->monitors_config = 1166 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1167 1168 memset(qdev->monitors_config, 0, monitors_config_size); 1169 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1170 GFP_KERNEL); 1171 if (!qdev->dumb_heads) { 1172 qxl_destroy_monitors_object(qdev); 1173 return -ENOMEM; 1174 } 1175 return 0; 1176 } 1177 1178 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1179 { 1180 int ret; 1181 1182 qdev->monitors_config = NULL; 1183 qdev->ram_header->monitors_config = 0; 1184 1185 qxl_bo_kunmap(qdev->monitors_config_bo); 1186 ret = qxl_bo_unpin(qdev->monitors_config_bo); 1187 if (ret) 1188 return ret; 1189 1190 qxl_bo_unref(&qdev->monitors_config_bo); 1191 return 0; 1192 } 1193 1194 int qxl_modeset_init(struct qxl_device *qdev) 1195 { 1196 int i; 1197 int ret; 1198 1199 drm_mode_config_init(&qdev->ddev); 1200 1201 ret = qxl_create_monitors_object(qdev); 1202 if (ret) 1203 return ret; 1204 1205 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1206 1207 /* modes will be validated against the framebuffer size */ 1208 qdev->ddev.mode_config.min_width = 0; 1209 qdev->ddev.mode_config.min_height = 0; 1210 qdev->ddev.mode_config.max_width = 8192; 1211 qdev->ddev.mode_config.max_height = 8192; 1212 1213 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1214 1215 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1216 qxl_mode_create_hotplug_mode_update_property(qdev); 1217 1218 for (i = 0 ; i < qxl_num_crtc; ++i) { 1219 qdev_crtc_init(&qdev->ddev, i); 1220 qdev_output_init(&qdev->ddev, i); 1221 } 1222 1223 qxl_display_read_client_monitors_config(qdev); 1224 1225 drm_mode_config_reset(&qdev->ddev); 1226 return 0; 1227 } 1228 1229 void qxl_modeset_fini(struct qxl_device *qdev) 1230 { 1231 qxl_destroy_monitors_object(qdev); 1232 drm_mode_config_cleanup(&qdev->ddev); 1233 } 1234