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_atomic_state *state) 468 { 469 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, 470 plane); 471 struct qxl_device *qdev = to_qxl(plane->dev); 472 struct qxl_bo *bo; 473 474 if (!new_plane_state->crtc || !new_plane_state->fb) 475 return 0; 476 477 bo = gem_to_qxl_bo(new_plane_state->fb->obj[0]); 478 479 return qxl_check_framebuffer(qdev, bo); 480 } 481 482 static int qxl_primary_apply_cursor(struct qxl_device *qdev, 483 struct drm_plane_state *plane_state) 484 { 485 struct drm_framebuffer *fb = plane_state->fb; 486 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc); 487 struct qxl_cursor_cmd *cmd; 488 struct qxl_release *release; 489 int ret = 0; 490 491 if (!qcrtc->cursor_bo) 492 return 0; 493 494 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 495 QXL_RELEASE_CURSOR_CMD, 496 &release, NULL); 497 if (ret) 498 return ret; 499 500 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 501 if (ret) 502 goto out_free_release; 503 504 ret = qxl_release_reserve_list(release, false); 505 if (ret) 506 goto out_free_release; 507 508 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 509 cmd->type = QXL_CURSOR_SET; 510 cmd->u.set.position.x = plane_state->crtc_x + fb->hot_x; 511 cmd->u.set.position.y = plane_state->crtc_y + fb->hot_y; 512 513 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 514 515 cmd->u.set.visible = 1; 516 qxl_release_unmap(qdev, release, &cmd->release_info); 517 518 qxl_release_fence_buffer_objects(release); 519 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 520 521 return ret; 522 523 out_free_release: 524 qxl_release_free(qdev, release); 525 return ret; 526 } 527 528 static int qxl_primary_move_cursor(struct qxl_device *qdev, 529 struct drm_plane_state *plane_state) 530 { 531 struct drm_framebuffer *fb = plane_state->fb; 532 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc); 533 struct qxl_cursor_cmd *cmd; 534 struct qxl_release *release; 535 int ret = 0; 536 537 if (!qcrtc->cursor_bo) 538 return 0; 539 540 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 541 QXL_RELEASE_CURSOR_CMD, 542 &release, NULL); 543 if (ret) 544 return ret; 545 546 ret = qxl_release_reserve_list(release, true); 547 if (ret) { 548 qxl_release_free(qdev, release); 549 return ret; 550 } 551 552 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 553 cmd->type = QXL_CURSOR_MOVE; 554 cmd->u.position.x = plane_state->crtc_x + fb->hot_x; 555 cmd->u.position.y = plane_state->crtc_y + fb->hot_y; 556 qxl_release_unmap(qdev, release, &cmd->release_info); 557 558 qxl_release_fence_buffer_objects(release); 559 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 560 return ret; 561 } 562 563 static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev, 564 struct qxl_bo *user_bo, 565 int hot_x, int hot_y) 566 { 567 static const u32 size = 64 * 64 * 4; 568 struct qxl_bo *cursor_bo; 569 struct dma_buf_map cursor_map; 570 struct dma_buf_map user_map; 571 struct qxl_cursor cursor; 572 int ret; 573 574 if (!user_bo) 575 return NULL; 576 577 ret = qxl_bo_create(qdev, sizeof(struct qxl_cursor) + size, 578 false, true, QXL_GEM_DOMAIN_VRAM, 1, 579 NULL, &cursor_bo); 580 if (ret) 581 goto err; 582 583 ret = qxl_bo_vmap(cursor_bo, &cursor_map); 584 if (ret) 585 goto err_unref; 586 587 ret = qxl_bo_vmap(user_bo, &user_map); 588 if (ret) 589 goto err_unmap; 590 591 cursor.header.unique = 0; 592 cursor.header.type = SPICE_CURSOR_TYPE_ALPHA; 593 cursor.header.width = 64; 594 cursor.header.height = 64; 595 cursor.header.hot_spot_x = hot_x; 596 cursor.header.hot_spot_y = hot_y; 597 cursor.data_size = size; 598 cursor.chunk.next_chunk = 0; 599 cursor.chunk.prev_chunk = 0; 600 cursor.chunk.data_size = size; 601 if (cursor_map.is_iomem) { 602 memcpy_toio(cursor_map.vaddr_iomem, 603 &cursor, sizeof(cursor)); 604 memcpy_toio(cursor_map.vaddr_iomem + sizeof(cursor), 605 user_map.vaddr, size); 606 } else { 607 memcpy(cursor_map.vaddr, 608 &cursor, sizeof(cursor)); 609 memcpy(cursor_map.vaddr + sizeof(cursor), 610 user_map.vaddr, size); 611 } 612 613 qxl_bo_vunmap(user_bo); 614 qxl_bo_vunmap(cursor_bo); 615 return cursor_bo; 616 617 err_unmap: 618 qxl_bo_vunmap(cursor_bo); 619 err_unref: 620 qxl_bo_unpin(cursor_bo); 621 qxl_bo_unref(&cursor_bo); 622 err: 623 return NULL; 624 } 625 626 static void qxl_free_cursor(struct qxl_bo *cursor_bo) 627 { 628 if (!cursor_bo) 629 return; 630 631 qxl_bo_unpin(cursor_bo); 632 qxl_bo_unref(&cursor_bo); 633 } 634 635 static void qxl_primary_atomic_update(struct drm_plane *plane, 636 struct drm_atomic_state *state) 637 { 638 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, 639 plane); 640 struct qxl_device *qdev = to_qxl(plane->dev); 641 struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]); 642 struct qxl_bo *primary; 643 struct drm_clip_rect norect = { 644 .x1 = 0, 645 .y1 = 0, 646 .x2 = new_state->fb->width, 647 .y2 = new_state->fb->height 648 }; 649 uint32_t dumb_shadow_offset = 0; 650 651 primary = bo->shadow ? bo->shadow : bo; 652 653 if (!primary->is_primary) { 654 if (qdev->primary_bo) 655 qxl_io_destroy_primary(qdev); 656 qxl_io_create_primary(qdev, primary); 657 qxl_primary_apply_cursor(qdev, plane->state); 658 } 659 660 if (bo->is_dumb) 661 dumb_shadow_offset = 662 qdev->dumb_heads[new_state->crtc->index].x; 663 664 qxl_draw_dirty_fb(qdev, new_state->fb, bo, 0, 0, &norect, 1, 1, 665 dumb_shadow_offset); 666 } 667 668 static void qxl_primary_atomic_disable(struct drm_plane *plane, 669 struct drm_atomic_state *state) 670 { 671 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 672 plane); 673 struct qxl_device *qdev = to_qxl(plane->dev); 674 675 if (old_state->fb) { 676 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 677 678 if (bo->shadow) 679 bo = bo->shadow; 680 if (bo->is_primary) { 681 qxl_io_destroy_primary(qdev); 682 bo->is_primary = false; 683 } 684 } 685 } 686 687 static void qxl_cursor_atomic_update(struct drm_plane *plane, 688 struct drm_atomic_state *state) 689 { 690 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 691 plane); 692 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, 693 plane); 694 struct qxl_device *qdev = to_qxl(plane->dev); 695 struct drm_framebuffer *fb = new_state->fb; 696 697 if (fb != old_state->fb) { 698 qxl_primary_apply_cursor(qdev, new_state); 699 } else { 700 qxl_primary_move_cursor(qdev, new_state); 701 } 702 } 703 704 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 705 struct drm_atomic_state *state) 706 { 707 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 708 plane); 709 struct qxl_device *qdev = to_qxl(plane->dev); 710 struct qxl_crtc *qcrtc; 711 struct qxl_release *release; 712 struct qxl_cursor_cmd *cmd; 713 int ret; 714 715 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 716 QXL_RELEASE_CURSOR_CMD, 717 &release, NULL); 718 if (ret) 719 return; 720 721 ret = qxl_release_reserve_list(release, true); 722 if (ret) { 723 qxl_release_free(qdev, release); 724 return; 725 } 726 727 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 728 cmd->type = QXL_CURSOR_HIDE; 729 qxl_release_unmap(qdev, release, &cmd->release_info); 730 731 qxl_release_fence_buffer_objects(release); 732 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 733 734 qcrtc = to_qxl_crtc(old_state->crtc); 735 qxl_free_cursor(qcrtc->cursor_bo); 736 qcrtc->cursor_bo = NULL; 737 } 738 739 static void qxl_update_dumb_head(struct qxl_device *qdev, 740 int index, struct qxl_bo *bo) 741 { 742 uint32_t width, height; 743 744 if (index >= qdev->monitors_config->max_allowed) 745 return; 746 747 if (bo && bo->is_dumb) { 748 width = bo->surf.width; 749 height = bo->surf.height; 750 } else { 751 width = 0; 752 height = 0; 753 } 754 755 if (qdev->dumb_heads[index].width == width && 756 qdev->dumb_heads[index].height == height) 757 return; 758 759 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 760 qdev->dumb_heads[index].width, 761 qdev->dumb_heads[index].height, 762 width, height); 763 qdev->dumb_heads[index].width = width; 764 qdev->dumb_heads[index].height = height; 765 } 766 767 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 768 struct qxl_surface *surf) 769 { 770 struct qxl_head *head; 771 int i; 772 773 memset(surf, 0, sizeof(*surf)); 774 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 775 head = qdev->dumb_heads + i; 776 head->x = surf->width; 777 surf->width += head->width; 778 if (surf->height < head->height) 779 surf->height = head->height; 780 } 781 if (surf->width < 64) 782 surf->width = 64; 783 if (surf->height < 64) 784 surf->height = 64; 785 surf->format = SPICE_SURFACE_FMT_32_xRGB; 786 surf->stride = surf->width * 4; 787 788 if (!qdev->dumb_shadow_bo || 789 qdev->dumb_shadow_bo->surf.width != surf->width || 790 qdev->dumb_shadow_bo->surf.height != surf->height) 791 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 792 } 793 794 static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo, 795 int crtc_index) 796 { 797 struct qxl_surface surf; 798 799 qxl_update_dumb_head(qdev, crtc_index, 800 user_bo); 801 qxl_calc_dumb_shadow(qdev, &surf); 802 if (!qdev->dumb_shadow_bo || 803 qdev->dumb_shadow_bo->surf.width != surf.width || 804 qdev->dumb_shadow_bo->surf.height != surf.height) { 805 if (qdev->dumb_shadow_bo) { 806 drm_gem_object_put 807 (&qdev->dumb_shadow_bo->tbo.base); 808 qdev->dumb_shadow_bo = NULL; 809 } 810 qxl_bo_create(qdev, surf.height * surf.stride, 811 true, true, QXL_GEM_DOMAIN_SURFACE, 0, 812 &surf, &qdev->dumb_shadow_bo); 813 } 814 if (user_bo->shadow != qdev->dumb_shadow_bo) { 815 if (user_bo->shadow) { 816 qxl_bo_unpin(user_bo->shadow); 817 drm_gem_object_put 818 (&user_bo->shadow->tbo.base); 819 user_bo->shadow = NULL; 820 } 821 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 822 user_bo->shadow = qdev->dumb_shadow_bo; 823 qxl_bo_pin(user_bo->shadow); 824 } 825 } 826 827 static int qxl_plane_prepare_fb(struct drm_plane *plane, 828 struct drm_plane_state *new_state) 829 { 830 struct qxl_device *qdev = to_qxl(plane->dev); 831 struct drm_gem_object *obj; 832 struct qxl_bo *user_bo; 833 834 if (!new_state->fb) 835 return 0; 836 837 obj = new_state->fb->obj[0]; 838 user_bo = gem_to_qxl_bo(obj); 839 840 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 841 user_bo->is_dumb) { 842 qxl_prepare_shadow(qdev, user_bo, new_state->crtc->index); 843 } 844 845 if (plane->type == DRM_PLANE_TYPE_CURSOR && 846 plane->state->fb != new_state->fb) { 847 struct qxl_crtc *qcrtc = to_qxl_crtc(new_state->crtc); 848 struct qxl_bo *old_cursor_bo = qcrtc->cursor_bo; 849 850 qcrtc->cursor_bo = qxl_create_cursor(qdev, user_bo, 851 new_state->fb->hot_x, 852 new_state->fb->hot_y); 853 qxl_free_cursor(old_cursor_bo); 854 } 855 856 return qxl_bo_pin(user_bo); 857 } 858 859 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 860 struct drm_plane_state *old_state) 861 { 862 struct drm_gem_object *obj; 863 struct qxl_bo *user_bo; 864 865 if (!old_state->fb) { 866 /* 867 * we never executed prepare_fb, so there's nothing to 868 * unpin. 869 */ 870 return; 871 } 872 873 obj = old_state->fb->obj[0]; 874 user_bo = gem_to_qxl_bo(obj); 875 qxl_bo_unpin(user_bo); 876 877 if (old_state->fb != plane->state->fb && user_bo->shadow) { 878 qxl_bo_unpin(user_bo->shadow); 879 drm_gem_object_put(&user_bo->shadow->tbo.base); 880 user_bo->shadow = NULL; 881 } 882 } 883 884 static const uint32_t qxl_cursor_plane_formats[] = { 885 DRM_FORMAT_ARGB8888, 886 }; 887 888 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 889 .atomic_update = qxl_cursor_atomic_update, 890 .atomic_disable = qxl_cursor_atomic_disable, 891 .prepare_fb = qxl_plane_prepare_fb, 892 .cleanup_fb = qxl_plane_cleanup_fb, 893 }; 894 895 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 896 .update_plane = drm_atomic_helper_update_plane, 897 .disable_plane = drm_atomic_helper_disable_plane, 898 .destroy = drm_primary_helper_destroy, 899 .reset = drm_atomic_helper_plane_reset, 900 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 901 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 902 }; 903 904 static const uint32_t qxl_primary_plane_formats[] = { 905 DRM_FORMAT_XRGB8888, 906 DRM_FORMAT_ARGB8888, 907 }; 908 909 static const struct drm_plane_helper_funcs primary_helper_funcs = { 910 .atomic_check = qxl_primary_atomic_check, 911 .atomic_update = qxl_primary_atomic_update, 912 .atomic_disable = qxl_primary_atomic_disable, 913 .prepare_fb = qxl_plane_prepare_fb, 914 .cleanup_fb = qxl_plane_cleanup_fb, 915 }; 916 917 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 918 .update_plane = drm_atomic_helper_update_plane, 919 .disable_plane = drm_atomic_helper_disable_plane, 920 .destroy = drm_primary_helper_destroy, 921 .reset = drm_atomic_helper_plane_reset, 922 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 923 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 924 }; 925 926 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 927 unsigned int possible_crtcs, 928 enum drm_plane_type type) 929 { 930 const struct drm_plane_helper_funcs *helper_funcs = NULL; 931 struct drm_plane *plane; 932 const struct drm_plane_funcs *funcs; 933 const uint32_t *formats; 934 int num_formats; 935 int err; 936 937 if (type == DRM_PLANE_TYPE_PRIMARY) { 938 funcs = &qxl_primary_plane_funcs; 939 formats = qxl_primary_plane_formats; 940 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 941 helper_funcs = &primary_helper_funcs; 942 } else if (type == DRM_PLANE_TYPE_CURSOR) { 943 funcs = &qxl_cursor_plane_funcs; 944 formats = qxl_cursor_plane_formats; 945 helper_funcs = &qxl_cursor_helper_funcs; 946 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 947 } else { 948 return ERR_PTR(-EINVAL); 949 } 950 951 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 952 if (!plane) 953 return ERR_PTR(-ENOMEM); 954 955 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 956 funcs, formats, num_formats, 957 NULL, type, NULL); 958 if (err) 959 goto free_plane; 960 961 drm_plane_helper_add(plane, helper_funcs); 962 963 return plane; 964 965 free_plane: 966 kfree(plane); 967 return ERR_PTR(-EINVAL); 968 } 969 970 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 971 { 972 struct qxl_crtc *qxl_crtc; 973 struct drm_plane *primary, *cursor; 974 struct qxl_device *qdev = to_qxl(dev); 975 int r; 976 977 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 978 if (!qxl_crtc) 979 return -ENOMEM; 980 981 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 982 if (IS_ERR(primary)) { 983 r = -ENOMEM; 984 goto free_mem; 985 } 986 987 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 988 if (IS_ERR(cursor)) { 989 r = -ENOMEM; 990 goto clean_primary; 991 } 992 993 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 994 &qxl_crtc_funcs, NULL); 995 if (r) 996 goto clean_cursor; 997 998 qxl_crtc->index = crtc_id; 999 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 1000 return 0; 1001 1002 clean_cursor: 1003 drm_plane_cleanup(cursor); 1004 kfree(cursor); 1005 clean_primary: 1006 drm_plane_cleanup(primary); 1007 kfree(primary); 1008 free_mem: 1009 kfree(qxl_crtc); 1010 return r; 1011 } 1012 1013 static int qxl_conn_get_modes(struct drm_connector *connector) 1014 { 1015 struct drm_device *dev = connector->dev; 1016 struct qxl_device *qdev = to_qxl(dev); 1017 struct qxl_output *output = drm_connector_to_qxl_output(connector); 1018 unsigned int pwidth = 1024; 1019 unsigned int pheight = 768; 1020 int ret = 0; 1021 1022 if (qdev->client_monitors_config) { 1023 struct qxl_head *head; 1024 head = &qdev->client_monitors_config->heads[output->index]; 1025 if (head->width) 1026 pwidth = head->width; 1027 if (head->height) 1028 pheight = head->height; 1029 } 1030 1031 ret += drm_add_modes_noedid(connector, 8192, 8192); 1032 ret += qxl_add_extra_modes(connector); 1033 ret += qxl_add_monitors_config_modes(connector); 1034 drm_set_preferred_mode(connector, pwidth, pheight); 1035 return ret; 1036 } 1037 1038 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 1039 struct drm_display_mode *mode) 1040 { 1041 struct drm_device *ddev = connector->dev; 1042 struct qxl_device *qdev = to_qxl(ddev); 1043 1044 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 1045 return MODE_BAD; 1046 1047 return MODE_OK; 1048 } 1049 1050 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1051 { 1052 struct qxl_output *qxl_output = 1053 drm_connector_to_qxl_output(connector); 1054 1055 DRM_DEBUG("\n"); 1056 return &qxl_output->enc; 1057 } 1058 1059 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1060 .get_modes = qxl_conn_get_modes, 1061 .mode_valid = qxl_conn_mode_valid, 1062 .best_encoder = qxl_best_encoder, 1063 }; 1064 1065 static enum drm_connector_status qxl_conn_detect( 1066 struct drm_connector *connector, 1067 bool force) 1068 { 1069 struct qxl_output *output = 1070 drm_connector_to_qxl_output(connector); 1071 struct drm_device *ddev = connector->dev; 1072 struct qxl_device *qdev = to_qxl(ddev); 1073 bool connected = false; 1074 1075 /* The first monitor is always connected */ 1076 if (!qdev->client_monitors_config) { 1077 if (output->index == 0) 1078 connected = true; 1079 } else 1080 connected = qdev->client_monitors_config->count > output->index && 1081 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1082 1083 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1084 1085 return connected ? connector_status_connected 1086 : connector_status_disconnected; 1087 } 1088 1089 static void qxl_conn_destroy(struct drm_connector *connector) 1090 { 1091 struct qxl_output *qxl_output = 1092 drm_connector_to_qxl_output(connector); 1093 1094 drm_connector_unregister(connector); 1095 drm_connector_cleanup(connector); 1096 kfree(qxl_output); 1097 } 1098 1099 static const struct drm_connector_funcs qxl_connector_funcs = { 1100 .detect = qxl_conn_detect, 1101 .fill_modes = drm_helper_probe_single_connector_modes, 1102 .destroy = qxl_conn_destroy, 1103 .reset = drm_atomic_helper_connector_reset, 1104 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1105 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1106 }; 1107 1108 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1109 { 1110 if (qdev->hotplug_mode_update_property) 1111 return 0; 1112 1113 qdev->hotplug_mode_update_property = 1114 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1115 "hotplug_mode_update", 0, 1); 1116 1117 return 0; 1118 } 1119 1120 static int qdev_output_init(struct drm_device *dev, int num_output) 1121 { 1122 struct qxl_device *qdev = to_qxl(dev); 1123 struct qxl_output *qxl_output; 1124 struct drm_connector *connector; 1125 struct drm_encoder *encoder; 1126 int ret; 1127 1128 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1129 if (!qxl_output) 1130 return -ENOMEM; 1131 1132 qxl_output->index = num_output; 1133 1134 connector = &qxl_output->base; 1135 encoder = &qxl_output->enc; 1136 drm_connector_init(dev, &qxl_output->base, 1137 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1138 1139 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1140 DRM_MODE_ENCODER_VIRTUAL); 1141 if (ret) { 1142 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1143 ret); 1144 goto err_drm_connector_cleanup; 1145 } 1146 1147 /* we get HPD via client monitors config */ 1148 connector->polled = DRM_CONNECTOR_POLL_HPD; 1149 encoder->possible_crtcs = 1 << num_output; 1150 drm_connector_attach_encoder(&qxl_output->base, 1151 &qxl_output->enc); 1152 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1153 1154 drm_object_attach_property(&connector->base, 1155 qdev->hotplug_mode_update_property, 0); 1156 drm_object_attach_property(&connector->base, 1157 dev->mode_config.suggested_x_property, 0); 1158 drm_object_attach_property(&connector->base, 1159 dev->mode_config.suggested_y_property, 0); 1160 return 0; 1161 1162 err_drm_connector_cleanup: 1163 drm_connector_cleanup(&qxl_output->base); 1164 kfree(qxl_output); 1165 return ret; 1166 } 1167 1168 static struct drm_framebuffer * 1169 qxl_user_framebuffer_create(struct drm_device *dev, 1170 struct drm_file *file_priv, 1171 const struct drm_mode_fb_cmd2 *mode_cmd) 1172 { 1173 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1174 &qxl_fb_funcs); 1175 } 1176 1177 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1178 .fb_create = qxl_user_framebuffer_create, 1179 .atomic_check = drm_atomic_helper_check, 1180 .atomic_commit = drm_atomic_helper_commit, 1181 }; 1182 1183 int qxl_create_monitors_object(struct qxl_device *qdev) 1184 { 1185 int ret; 1186 struct drm_gem_object *gobj; 1187 struct dma_buf_map map; 1188 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1189 qxl_num_crtc * sizeof(struct qxl_head); 1190 1191 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1192 QXL_GEM_DOMAIN_VRAM, 1193 false, false, NULL, &gobj); 1194 if (ret) { 1195 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1196 return -ENOMEM; 1197 } 1198 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1199 1200 ret = qxl_bo_vmap(qdev->monitors_config_bo, &map); 1201 if (ret) 1202 return ret; 1203 1204 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1205 qdev->ram_header->monitors_config = 1206 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1207 1208 memset(qdev->monitors_config, 0, monitors_config_size); 1209 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1210 GFP_KERNEL); 1211 if (!qdev->dumb_heads) { 1212 qxl_destroy_monitors_object(qdev); 1213 return -ENOMEM; 1214 } 1215 return 0; 1216 } 1217 1218 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1219 { 1220 int ret; 1221 1222 if (!qdev->monitors_config_bo) 1223 return 0; 1224 1225 qdev->monitors_config = NULL; 1226 qdev->ram_header->monitors_config = 0; 1227 1228 ret = qxl_bo_vunmap(qdev->monitors_config_bo); 1229 if (ret) 1230 return ret; 1231 1232 qxl_bo_unref(&qdev->monitors_config_bo); 1233 return 0; 1234 } 1235 1236 int qxl_modeset_init(struct qxl_device *qdev) 1237 { 1238 int i; 1239 int ret; 1240 1241 ret = drmm_mode_config_init(&qdev->ddev); 1242 if (ret) 1243 return ret; 1244 1245 ret = qxl_create_monitors_object(qdev); 1246 if (ret) 1247 return ret; 1248 1249 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1250 1251 /* modes will be validated against the framebuffer size */ 1252 qdev->ddev.mode_config.min_width = 0; 1253 qdev->ddev.mode_config.min_height = 0; 1254 qdev->ddev.mode_config.max_width = 8192; 1255 qdev->ddev.mode_config.max_height = 8192; 1256 1257 qdev->ddev.mode_config.fb_base = qdev->vram_base; 1258 1259 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1260 qxl_mode_create_hotplug_mode_update_property(qdev); 1261 1262 for (i = 0 ; i < qxl_num_crtc; ++i) { 1263 qdev_crtc_init(&qdev->ddev, i); 1264 qdev_output_init(&qdev->ddev, i); 1265 } 1266 1267 qxl_display_read_client_monitors_config(qdev); 1268 1269 drm_mode_config_reset(&qdev->ddev); 1270 return 0; 1271 } 1272 1273 void qxl_modeset_fini(struct qxl_device *qdev) 1274 { 1275 if (qdev->dumb_shadow_bo) { 1276 qxl_bo_unpin(qdev->dumb_shadow_bo); 1277 drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base); 1278 qdev->dumb_shadow_bo = NULL; 1279 } 1280 qxl_destroy_monitors_object(qdev); 1281 } 1282