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/iosys-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_edid.h> 34 #include <drm/drm_framebuffer.h> 35 #include <drm/drm_gem_framebuffer_helper.h> 36 #include <drm/drm_plane_helper.h> 37 #include <drm/drm_probe_helper.h> 38 #include <drm/drm_simple_kms_helper.h> 39 #include <drm/drm_gem_atomic_helper.h> 40 41 #include "qxl_drv.h" 42 #include "qxl_object.h" 43 44 static bool qxl_head_enabled(struct qxl_head *head) 45 { 46 return head->width && head->height; 47 } 48 49 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev, 50 unsigned int count) 51 { 52 if (qdev->client_monitors_config && 53 count > qdev->client_monitors_config->count) { 54 kfree(qdev->client_monitors_config); 55 qdev->client_monitors_config = NULL; 56 } 57 if (!qdev->client_monitors_config) { 58 qdev->client_monitors_config = kzalloc( 59 struct_size(qdev->client_monitors_config, 60 heads, count), GFP_KERNEL); 61 if (!qdev->client_monitors_config) 62 return -ENOMEM; 63 } 64 qdev->client_monitors_config->count = count; 65 return 0; 66 } 67 68 enum { 69 MONITORS_CONFIG_MODIFIED, 70 MONITORS_CONFIG_UNCHANGED, 71 MONITORS_CONFIG_BAD_CRC, 72 MONITORS_CONFIG_ERROR, 73 }; 74 75 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) 76 { 77 int i; 78 int num_monitors; 79 uint32_t crc; 80 int status = MONITORS_CONFIG_UNCHANGED; 81 82 num_monitors = qdev->rom->client_monitors_config.count; 83 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config, 84 sizeof(qdev->rom->client_monitors_config)); 85 if (crc != qdev->rom->client_monitors_config_crc) 86 return MONITORS_CONFIG_BAD_CRC; 87 if (!num_monitors) { 88 DRM_DEBUG_KMS("no client monitors configured\n"); 89 return status; 90 } 91 if (num_monitors > qxl_num_crtc) { 92 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", 93 qxl_num_crtc, num_monitors); 94 num_monitors = qxl_num_crtc; 95 } else { 96 num_monitors = qdev->rom->client_monitors_config.count; 97 } 98 if (qdev->client_monitors_config 99 && (num_monitors != qdev->client_monitors_config->count)) { 100 status = MONITORS_CONFIG_MODIFIED; 101 } 102 if (qxl_alloc_client_monitors_config(qdev, num_monitors)) { 103 status = MONITORS_CONFIG_ERROR; 104 return status; 105 } 106 /* we copy max from the client but it isn't used */ 107 qdev->client_monitors_config->max_allowed = qxl_num_crtc; 108 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) { 109 struct qxl_urect *c_rect = 110 &qdev->rom->client_monitors_config.heads[i]; 111 struct qxl_head *client_head = 112 &qdev->client_monitors_config->heads[i]; 113 if (client_head->x != c_rect->left) { 114 client_head->x = c_rect->left; 115 status = MONITORS_CONFIG_MODIFIED; 116 } 117 if (client_head->y != c_rect->top) { 118 client_head->y = c_rect->top; 119 status = MONITORS_CONFIG_MODIFIED; 120 } 121 if (client_head->width != c_rect->right - c_rect->left) { 122 client_head->width = c_rect->right - c_rect->left; 123 status = MONITORS_CONFIG_MODIFIED; 124 } 125 if (client_head->height != c_rect->bottom - c_rect->top) { 126 client_head->height = c_rect->bottom - c_rect->top; 127 status = MONITORS_CONFIG_MODIFIED; 128 } 129 if (client_head->surface_id != 0) { 130 client_head->surface_id = 0; 131 status = MONITORS_CONFIG_MODIFIED; 132 } 133 if (client_head->id != i) { 134 client_head->id = i; 135 status = MONITORS_CONFIG_MODIFIED; 136 } 137 if (client_head->flags != 0) { 138 client_head->flags = 0; 139 status = MONITORS_CONFIG_MODIFIED; 140 } 141 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height, 142 client_head->x, client_head->y); 143 } 144 145 return status; 146 } 147 148 static void qxl_update_offset_props(struct qxl_device *qdev) 149 { 150 struct drm_device *dev = &qdev->ddev; 151 struct drm_connector *connector; 152 struct qxl_output *output; 153 struct qxl_head *head; 154 155 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 156 output = drm_connector_to_qxl_output(connector); 157 158 head = &qdev->client_monitors_config->heads[output->index]; 159 160 drm_object_property_set_value(&connector->base, 161 dev->mode_config.suggested_x_property, head->x); 162 drm_object_property_set_value(&connector->base, 163 dev->mode_config.suggested_y_property, head->y); 164 } 165 } 166 167 void qxl_display_read_client_monitors_config(struct qxl_device *qdev) 168 { 169 struct drm_device *dev = &qdev->ddev; 170 struct drm_modeset_acquire_ctx ctx; 171 int status, retries, ret; 172 173 for (retries = 0; retries < 10; retries++) { 174 status = qxl_display_copy_rom_client_monitors_config(qdev); 175 if (status != MONITORS_CONFIG_BAD_CRC) 176 break; 177 udelay(5); 178 } 179 if (status == MONITORS_CONFIG_ERROR) { 180 DRM_DEBUG_KMS("ignoring client monitors config: error"); 181 return; 182 } 183 if (status == MONITORS_CONFIG_BAD_CRC) { 184 DRM_DEBUG_KMS("ignoring client monitors config: bad crc"); 185 return; 186 } 187 if (status == MONITORS_CONFIG_UNCHANGED) { 188 DRM_DEBUG_KMS("ignoring client monitors config: unchanged"); 189 return; 190 } 191 192 DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 193 qxl_update_offset_props(qdev); 194 DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); 195 if (!drm_helper_hpd_irq_event(dev)) { 196 /* notify that the monitor configuration changed, to 197 adjust at the arbitrary resolution */ 198 drm_kms_helper_hotplug_event(dev); 199 } 200 } 201 202 static int qxl_check_mode(struct qxl_device *qdev, 203 unsigned int width, 204 unsigned int height) 205 { 206 unsigned int stride; 207 unsigned int size; 208 209 if (check_mul_overflow(width, 4u, &stride)) 210 return -EINVAL; 211 if (check_mul_overflow(stride, height, &size)) 212 return -EINVAL; 213 if (size > qdev->vram_size) 214 return -ENOMEM; 215 return 0; 216 } 217 218 static int qxl_check_framebuffer(struct qxl_device *qdev, 219 struct qxl_bo *bo) 220 { 221 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height); 222 } 223 224 static int qxl_add_mode(struct drm_connector *connector, 225 unsigned int width, 226 unsigned int height, 227 bool preferred) 228 { 229 struct drm_device *dev = connector->dev; 230 struct qxl_device *qdev = to_qxl(dev); 231 struct drm_display_mode *mode = NULL; 232 int rc; 233 234 rc = qxl_check_mode(qdev, width, height); 235 if (rc != 0) 236 return 0; 237 238 mode = drm_cvt_mode(dev, width, height, 60, false, false, false); 239 if (!mode) 240 return 0; 241 242 if (preferred) 243 mode->type |= DRM_MODE_TYPE_PREFERRED; 244 mode->hdisplay = width; 245 mode->vdisplay = height; 246 drm_mode_set_name(mode); 247 drm_mode_probed_add(connector, mode); 248 return 1; 249 } 250 251 static int qxl_add_monitors_config_modes(struct drm_connector *connector) 252 { 253 struct drm_device *dev = connector->dev; 254 struct qxl_device *qdev = to_qxl(dev); 255 struct qxl_output *output = drm_connector_to_qxl_output(connector); 256 int h = output->index; 257 struct qxl_head *head; 258 259 if (!qdev->monitors_config) 260 return 0; 261 if (h >= qxl_num_crtc) 262 return 0; 263 if (!qdev->client_monitors_config) 264 return 0; 265 if (h >= qdev->client_monitors_config->count) 266 return 0; 267 268 head = &qdev->client_monitors_config->heads[h]; 269 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height); 270 271 return qxl_add_mode(connector, head->width, head->height, true); 272 } 273 274 static struct mode_size { 275 int w; 276 int h; 277 } extra_modes[] = { 278 { 720, 480}, 279 {1152, 768}, 280 {1280, 854}, 281 }; 282 283 static int qxl_add_extra_modes(struct drm_connector *connector) 284 { 285 int i, ret = 0; 286 287 for (i = 0; i < ARRAY_SIZE(extra_modes); i++) 288 ret += qxl_add_mode(connector, 289 extra_modes[i].w, 290 extra_modes[i].h, 291 false); 292 return ret; 293 } 294 295 static void qxl_send_monitors_config(struct qxl_device *qdev) 296 { 297 int i; 298 299 BUG_ON(!qdev->ram_header->monitors_config); 300 301 if (qdev->monitors_config->count == 0) 302 return; 303 304 for (i = 0 ; i < qdev->monitors_config->count ; ++i) { 305 struct qxl_head *head = &qdev->monitors_config->heads[i]; 306 307 if (head->y > 8192 || head->x > 8192 || 308 head->width > 8192 || head->height > 8192) { 309 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n", 310 i, head->width, head->height, 311 head->x, head->y); 312 return; 313 } 314 } 315 qxl_io_monitors_config(qdev); 316 } 317 318 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, 319 const char *reason) 320 { 321 struct drm_device *dev = crtc->dev; 322 struct qxl_device *qdev = to_qxl(dev); 323 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc); 324 struct qxl_head head; 325 int oldcount, i = qcrtc->index; 326 327 if (!qdev->primary_bo) { 328 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason); 329 return; 330 } 331 332 if (!qdev->monitors_config || qxl_num_crtc <= i) 333 return; 334 335 head.id = i; 336 head.flags = 0; 337 head.surface_id = 0; 338 oldcount = qdev->monitors_config->count; 339 if (crtc->state->active) { 340 struct drm_display_mode *mode = &crtc->mode; 341 342 head.width = mode->hdisplay; 343 head.height = mode->vdisplay; 344 head.x = crtc->x; 345 head.y = crtc->y; 346 if (qdev->monitors_config->count < i + 1) 347 qdev->monitors_config->count = i + 1; 348 if (qdev->primary_bo == qdev->dumb_shadow_bo) 349 head.x += qdev->dumb_heads[i].x; 350 } else if (i > 0) { 351 head.width = 0; 352 head.height = 0; 353 head.x = 0; 354 head.y = 0; 355 if (qdev->monitors_config->count == i + 1) 356 qdev->monitors_config->count = i; 357 } else { 358 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason); 359 return; 360 } 361 362 if (head.width == qdev->monitors_config->heads[i].width && 363 head.height == qdev->monitors_config->heads[i].height && 364 head.x == qdev->monitors_config->heads[i].x && 365 head.y == qdev->monitors_config->heads[i].y && 366 oldcount == qdev->monitors_config->count) 367 return; 368 369 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n", 370 i, head.width, head.height, head.x, head.y, 371 crtc->state->active ? "on" : "off", reason); 372 if (oldcount != qdev->monitors_config->count) 373 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", 374 oldcount, qdev->monitors_config->count, 375 qxl_num_crtc); 376 377 qdev->monitors_config->heads[i] = head; 378 qdev->monitors_config->max_allowed = qxl_num_crtc; 379 qxl_send_monitors_config(qdev); 380 } 381 382 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc, 383 struct drm_atomic_state *state) 384 { 385 qxl_crtc_update_monitors_config(crtc, "flush"); 386 } 387 388 static void qxl_crtc_destroy(struct drm_crtc *crtc) 389 { 390 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc); 391 392 qxl_bo_unref(&qxl_crtc->cursor_bo); 393 drm_crtc_cleanup(crtc); 394 kfree(qxl_crtc); 395 } 396 397 static const struct drm_crtc_funcs qxl_crtc_funcs = { 398 .set_config = drm_atomic_helper_set_config, 399 .destroy = qxl_crtc_destroy, 400 .page_flip = drm_atomic_helper_page_flip, 401 .reset = drm_atomic_helper_crtc_reset, 402 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, 403 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, 404 }; 405 406 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb, 407 struct drm_file *file_priv, 408 unsigned int flags, unsigned int color, 409 struct drm_clip_rect *clips, 410 unsigned int num_clips) 411 { 412 /* TODO: vmwgfx where this was cribbed from had locking. Why? */ 413 struct qxl_device *qdev = to_qxl(fb->dev); 414 struct drm_clip_rect norect; 415 struct qxl_bo *qobj; 416 struct drm_modeset_acquire_ctx ctx; 417 bool is_primary; 418 int inc = 1, ret; 419 420 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); 421 422 qobj = gem_to_qxl_bo(fb->obj[0]); 423 /* if we aren't primary surface ignore this */ 424 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; 425 if (!is_primary) 426 goto out_lock_end; 427 428 if (!num_clips) { 429 num_clips = 1; 430 clips = &norect; 431 norect.x1 = norect.y1 = 0; 432 norect.x2 = fb->width; 433 norect.y2 = fb->height; 434 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 435 num_clips /= 2; 436 inc = 2; /* skip source rects */ 437 } 438 439 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color, 440 clips, num_clips, inc, 0); 441 442 out_lock_end: 443 DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret); 444 445 return 0; 446 } 447 448 static const struct drm_framebuffer_funcs qxl_fb_funcs = { 449 .destroy = drm_gem_fb_destroy, 450 .dirty = qxl_framebuffer_surface_dirty, 451 .create_handle = drm_gem_fb_create_handle, 452 }; 453 454 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc, 455 struct drm_atomic_state *state) 456 { 457 qxl_crtc_update_monitors_config(crtc, "enable"); 458 } 459 460 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc, 461 struct drm_atomic_state *state) 462 { 463 qxl_crtc_update_monitors_config(crtc, "disable"); 464 } 465 466 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = { 467 .atomic_flush = qxl_crtc_atomic_flush, 468 .atomic_enable = qxl_crtc_atomic_enable, 469 .atomic_disable = qxl_crtc_atomic_disable, 470 }; 471 472 static int qxl_primary_atomic_check(struct drm_plane *plane, 473 struct drm_atomic_state *state) 474 { 475 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, 476 plane); 477 struct qxl_device *qdev = to_qxl(plane->dev); 478 struct qxl_bo *bo; 479 480 if (!new_plane_state->crtc || !new_plane_state->fb) 481 return 0; 482 483 bo = gem_to_qxl_bo(new_plane_state->fb->obj[0]); 484 485 return qxl_check_framebuffer(qdev, bo); 486 } 487 488 static int qxl_primary_apply_cursor(struct qxl_device *qdev, 489 struct drm_plane_state *plane_state) 490 { 491 struct drm_framebuffer *fb = plane_state->fb; 492 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc); 493 struct qxl_cursor_cmd *cmd; 494 struct qxl_release *release; 495 int ret = 0; 496 497 if (!qcrtc->cursor_bo) 498 return 0; 499 500 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 501 QXL_RELEASE_CURSOR_CMD, 502 &release, NULL); 503 if (ret) 504 return ret; 505 506 ret = qxl_release_list_add(release, qcrtc->cursor_bo); 507 if (ret) 508 goto out_free_release; 509 510 ret = qxl_release_reserve_list(release, false); 511 if (ret) 512 goto out_free_release; 513 514 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 515 cmd->type = QXL_CURSOR_SET; 516 cmd->u.set.position.x = plane_state->crtc_x + fb->hot_x; 517 cmd->u.set.position.y = plane_state->crtc_y + fb->hot_y; 518 519 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0); 520 521 cmd->u.set.visible = 1; 522 qxl_release_unmap(qdev, release, &cmd->release_info); 523 524 qxl_release_fence_buffer_objects(release); 525 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 526 527 return ret; 528 529 out_free_release: 530 qxl_release_free(qdev, release); 531 return ret; 532 } 533 534 static int qxl_primary_move_cursor(struct qxl_device *qdev, 535 struct drm_plane_state *plane_state) 536 { 537 struct drm_framebuffer *fb = plane_state->fb; 538 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc); 539 struct qxl_cursor_cmd *cmd; 540 struct qxl_release *release; 541 int ret = 0; 542 543 if (!qcrtc->cursor_bo) 544 return 0; 545 546 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 547 QXL_RELEASE_CURSOR_CMD, 548 &release, NULL); 549 if (ret) 550 return ret; 551 552 ret = qxl_release_reserve_list(release, true); 553 if (ret) { 554 qxl_release_free(qdev, release); 555 return ret; 556 } 557 558 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 559 cmd->type = QXL_CURSOR_MOVE; 560 cmd->u.position.x = plane_state->crtc_x + fb->hot_x; 561 cmd->u.position.y = plane_state->crtc_y + fb->hot_y; 562 qxl_release_unmap(qdev, release, &cmd->release_info); 563 564 qxl_release_fence_buffer_objects(release); 565 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 566 return ret; 567 } 568 569 static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev, 570 struct qxl_bo *user_bo, 571 int hot_x, int hot_y) 572 { 573 static const u32 size = 64 * 64 * 4; 574 struct qxl_bo *cursor_bo; 575 struct iosys_map cursor_map; 576 struct iosys_map user_map; 577 struct qxl_cursor cursor; 578 int ret; 579 580 if (!user_bo) 581 return NULL; 582 583 ret = qxl_bo_create(qdev, sizeof(struct qxl_cursor) + size, 584 false, true, QXL_GEM_DOMAIN_VRAM, 1, 585 NULL, &cursor_bo); 586 if (ret) 587 goto err; 588 589 ret = qxl_bo_vmap(cursor_bo, &cursor_map); 590 if (ret) 591 goto err_unref; 592 593 ret = qxl_bo_vmap(user_bo, &user_map); 594 if (ret) 595 goto err_unmap; 596 597 cursor.header.unique = 0; 598 cursor.header.type = SPICE_CURSOR_TYPE_ALPHA; 599 cursor.header.width = 64; 600 cursor.header.height = 64; 601 cursor.header.hot_spot_x = hot_x; 602 cursor.header.hot_spot_y = hot_y; 603 cursor.data_size = size; 604 cursor.chunk.next_chunk = 0; 605 cursor.chunk.prev_chunk = 0; 606 cursor.chunk.data_size = size; 607 if (cursor_map.is_iomem) { 608 memcpy_toio(cursor_map.vaddr_iomem, 609 &cursor, sizeof(cursor)); 610 memcpy_toio(cursor_map.vaddr_iomem + sizeof(cursor), 611 user_map.vaddr, size); 612 } else { 613 memcpy(cursor_map.vaddr, 614 &cursor, sizeof(cursor)); 615 memcpy(cursor_map.vaddr + sizeof(cursor), 616 user_map.vaddr, size); 617 } 618 619 qxl_bo_vunmap(user_bo); 620 qxl_bo_vunmap(cursor_bo); 621 return cursor_bo; 622 623 err_unmap: 624 qxl_bo_vunmap(cursor_bo); 625 err_unref: 626 qxl_bo_unpin(cursor_bo); 627 qxl_bo_unref(&cursor_bo); 628 err: 629 return NULL; 630 } 631 632 static void qxl_free_cursor(struct qxl_bo *cursor_bo) 633 { 634 if (!cursor_bo) 635 return; 636 637 qxl_bo_unpin(cursor_bo); 638 qxl_bo_unref(&cursor_bo); 639 } 640 641 static void qxl_primary_atomic_update(struct drm_plane *plane, 642 struct drm_atomic_state *state) 643 { 644 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, 645 plane); 646 struct qxl_device *qdev = to_qxl(plane->dev); 647 struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]); 648 struct qxl_bo *primary; 649 struct drm_clip_rect norect = { 650 .x1 = 0, 651 .y1 = 0, 652 .x2 = new_state->fb->width, 653 .y2 = new_state->fb->height 654 }; 655 uint32_t dumb_shadow_offset = 0; 656 657 primary = bo->shadow ? bo->shadow : bo; 658 659 if (!primary->is_primary) { 660 if (qdev->primary_bo) 661 qxl_io_destroy_primary(qdev); 662 qxl_io_create_primary(qdev, primary); 663 qxl_primary_apply_cursor(qdev, plane->state); 664 } 665 666 if (bo->is_dumb) 667 dumb_shadow_offset = 668 qdev->dumb_heads[new_state->crtc->index].x; 669 670 qxl_draw_dirty_fb(qdev, new_state->fb, bo, 0, 0, &norect, 1, 1, 671 dumb_shadow_offset); 672 } 673 674 static void qxl_primary_atomic_disable(struct drm_plane *plane, 675 struct drm_atomic_state *state) 676 { 677 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 678 plane); 679 struct qxl_device *qdev = to_qxl(plane->dev); 680 681 if (old_state->fb) { 682 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]); 683 684 if (bo->shadow) 685 bo = bo->shadow; 686 if (bo->is_primary) 687 qxl_io_destroy_primary(qdev); 688 } 689 } 690 691 static void qxl_cursor_atomic_update(struct drm_plane *plane, 692 struct drm_atomic_state *state) 693 { 694 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 695 plane); 696 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, 697 plane); 698 struct qxl_device *qdev = to_qxl(plane->dev); 699 struct drm_framebuffer *fb = new_state->fb; 700 701 if (fb != old_state->fb) { 702 qxl_primary_apply_cursor(qdev, new_state); 703 } else { 704 qxl_primary_move_cursor(qdev, new_state); 705 } 706 } 707 708 static void qxl_cursor_atomic_disable(struct drm_plane *plane, 709 struct drm_atomic_state *state) 710 { 711 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, 712 plane); 713 struct qxl_device *qdev = to_qxl(plane->dev); 714 struct qxl_crtc *qcrtc; 715 struct qxl_release *release; 716 struct qxl_cursor_cmd *cmd; 717 int ret; 718 719 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), 720 QXL_RELEASE_CURSOR_CMD, 721 &release, NULL); 722 if (ret) 723 return; 724 725 ret = qxl_release_reserve_list(release, true); 726 if (ret) { 727 qxl_release_free(qdev, release); 728 return; 729 } 730 731 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); 732 cmd->type = QXL_CURSOR_HIDE; 733 qxl_release_unmap(qdev, release, &cmd->release_info); 734 735 qxl_release_fence_buffer_objects(release); 736 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); 737 738 qcrtc = to_qxl_crtc(old_state->crtc); 739 qxl_free_cursor(qcrtc->cursor_bo); 740 qcrtc->cursor_bo = NULL; 741 } 742 743 static void qxl_update_dumb_head(struct qxl_device *qdev, 744 int index, struct qxl_bo *bo) 745 { 746 uint32_t width, height; 747 748 if (index >= qdev->monitors_config->max_allowed) 749 return; 750 751 if (bo && bo->is_dumb) { 752 width = bo->surf.width; 753 height = bo->surf.height; 754 } else { 755 width = 0; 756 height = 0; 757 } 758 759 if (qdev->dumb_heads[index].width == width && 760 qdev->dumb_heads[index].height == height) 761 return; 762 763 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index, 764 qdev->dumb_heads[index].width, 765 qdev->dumb_heads[index].height, 766 width, height); 767 qdev->dumb_heads[index].width = width; 768 qdev->dumb_heads[index].height = height; 769 } 770 771 static void qxl_calc_dumb_shadow(struct qxl_device *qdev, 772 struct qxl_surface *surf) 773 { 774 struct qxl_head *head; 775 int i; 776 777 memset(surf, 0, sizeof(*surf)); 778 for (i = 0; i < qdev->monitors_config->max_allowed; i++) { 779 head = qdev->dumb_heads + i; 780 head->x = surf->width; 781 surf->width += head->width; 782 if (surf->height < head->height) 783 surf->height = head->height; 784 } 785 if (surf->width < 64) 786 surf->width = 64; 787 if (surf->height < 64) 788 surf->height = 64; 789 surf->format = SPICE_SURFACE_FMT_32_xRGB; 790 surf->stride = surf->width * 4; 791 792 if (!qdev->dumb_shadow_bo || 793 qdev->dumb_shadow_bo->surf.width != surf->width || 794 qdev->dumb_shadow_bo->surf.height != surf->height) 795 DRM_DEBUG("%dx%d\n", surf->width, surf->height); 796 } 797 798 static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo, 799 int crtc_index) 800 { 801 struct qxl_surface surf; 802 803 qxl_update_dumb_head(qdev, crtc_index, 804 user_bo); 805 qxl_calc_dumb_shadow(qdev, &surf); 806 if (!qdev->dumb_shadow_bo || 807 qdev->dumb_shadow_bo->surf.width != surf.width || 808 qdev->dumb_shadow_bo->surf.height != surf.height) { 809 if (qdev->dumb_shadow_bo) { 810 qxl_bo_unpin(qdev->dumb_shadow_bo); 811 drm_gem_object_put 812 (&qdev->dumb_shadow_bo->tbo.base); 813 qdev->dumb_shadow_bo = NULL; 814 } 815 qxl_bo_create(qdev, surf.height * surf.stride, 816 true, true, QXL_GEM_DOMAIN_SURFACE, 0, 817 &surf, &qdev->dumb_shadow_bo); 818 } 819 if (user_bo->shadow != qdev->dumb_shadow_bo) { 820 if (user_bo->shadow) { 821 qxl_bo_unpin(user_bo->shadow); 822 drm_gem_object_put 823 (&user_bo->shadow->tbo.base); 824 user_bo->shadow = NULL; 825 } 826 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base); 827 user_bo->shadow = qdev->dumb_shadow_bo; 828 qxl_bo_pin(user_bo->shadow); 829 } 830 } 831 832 static int qxl_plane_prepare_fb(struct drm_plane *plane, 833 struct drm_plane_state *new_state) 834 { 835 struct qxl_device *qdev = to_qxl(plane->dev); 836 struct drm_gem_object *obj; 837 struct qxl_bo *user_bo; 838 int ret; 839 840 if (!new_state->fb) 841 return 0; 842 843 obj = new_state->fb->obj[0]; 844 user_bo = gem_to_qxl_bo(obj); 845 846 if (plane->type == DRM_PLANE_TYPE_PRIMARY && 847 user_bo->is_dumb) { 848 qxl_prepare_shadow(qdev, user_bo, new_state->crtc->index); 849 } 850 851 if (plane->type == DRM_PLANE_TYPE_CURSOR && 852 plane->state->fb != new_state->fb) { 853 struct qxl_crtc *qcrtc = to_qxl_crtc(new_state->crtc); 854 struct qxl_bo *old_cursor_bo = qcrtc->cursor_bo; 855 856 qcrtc->cursor_bo = qxl_create_cursor(qdev, user_bo, 857 new_state->fb->hot_x, 858 new_state->fb->hot_y); 859 qxl_free_cursor(old_cursor_bo); 860 } 861 862 ret = qxl_bo_pin(user_bo); 863 if (ret) 864 return ret; 865 866 return drm_gem_plane_helper_prepare_fb(plane, new_state); 867 } 868 869 static void qxl_plane_cleanup_fb(struct drm_plane *plane, 870 struct drm_plane_state *old_state) 871 { 872 struct drm_gem_object *obj; 873 struct qxl_bo *user_bo; 874 875 if (!old_state->fb) { 876 /* 877 * we never executed prepare_fb, so there's nothing to 878 * unpin. 879 */ 880 return; 881 } 882 883 obj = old_state->fb->obj[0]; 884 user_bo = gem_to_qxl_bo(obj); 885 qxl_bo_unpin(user_bo); 886 887 if (old_state->fb != plane->state->fb && user_bo->shadow) { 888 qxl_bo_unpin(user_bo->shadow); 889 drm_gem_object_put(&user_bo->shadow->tbo.base); 890 user_bo->shadow = NULL; 891 } 892 } 893 894 static const uint32_t qxl_cursor_plane_formats[] = { 895 DRM_FORMAT_ARGB8888, 896 }; 897 898 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = { 899 .atomic_update = qxl_cursor_atomic_update, 900 .atomic_disable = qxl_cursor_atomic_disable, 901 .prepare_fb = qxl_plane_prepare_fb, 902 .cleanup_fb = qxl_plane_cleanup_fb, 903 }; 904 905 static const struct drm_plane_funcs qxl_cursor_plane_funcs = { 906 .update_plane = drm_atomic_helper_update_plane, 907 .disable_plane = drm_atomic_helper_disable_plane, 908 .destroy = drm_plane_helper_destroy, 909 .reset = drm_atomic_helper_plane_reset, 910 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 911 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 912 }; 913 914 static const uint32_t qxl_primary_plane_formats[] = { 915 DRM_FORMAT_XRGB8888, 916 DRM_FORMAT_ARGB8888, 917 }; 918 919 static const struct drm_plane_helper_funcs primary_helper_funcs = { 920 .atomic_check = qxl_primary_atomic_check, 921 .atomic_update = qxl_primary_atomic_update, 922 .atomic_disable = qxl_primary_atomic_disable, 923 .prepare_fb = qxl_plane_prepare_fb, 924 .cleanup_fb = qxl_plane_cleanup_fb, 925 }; 926 927 static const struct drm_plane_funcs qxl_primary_plane_funcs = { 928 .update_plane = drm_atomic_helper_update_plane, 929 .disable_plane = drm_atomic_helper_disable_plane, 930 .destroy = drm_plane_helper_destroy, 931 .reset = drm_atomic_helper_plane_reset, 932 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, 933 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, 934 }; 935 936 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev, 937 unsigned int possible_crtcs, 938 enum drm_plane_type type) 939 { 940 const struct drm_plane_helper_funcs *helper_funcs = NULL; 941 struct drm_plane *plane; 942 const struct drm_plane_funcs *funcs; 943 const uint32_t *formats; 944 int num_formats; 945 int err; 946 947 if (type == DRM_PLANE_TYPE_PRIMARY) { 948 funcs = &qxl_primary_plane_funcs; 949 formats = qxl_primary_plane_formats; 950 num_formats = ARRAY_SIZE(qxl_primary_plane_formats); 951 helper_funcs = &primary_helper_funcs; 952 } else if (type == DRM_PLANE_TYPE_CURSOR) { 953 funcs = &qxl_cursor_plane_funcs; 954 formats = qxl_cursor_plane_formats; 955 helper_funcs = &qxl_cursor_helper_funcs; 956 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats); 957 } else { 958 return ERR_PTR(-EINVAL); 959 } 960 961 plane = kzalloc(sizeof(*plane), GFP_KERNEL); 962 if (!plane) 963 return ERR_PTR(-ENOMEM); 964 965 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs, 966 funcs, formats, num_formats, 967 NULL, type, NULL); 968 if (err) 969 goto free_plane; 970 971 drm_plane_helper_add(plane, helper_funcs); 972 973 return plane; 974 975 free_plane: 976 kfree(plane); 977 return ERR_PTR(-EINVAL); 978 } 979 980 static int qdev_crtc_init(struct drm_device *dev, int crtc_id) 981 { 982 struct qxl_crtc *qxl_crtc; 983 struct drm_plane *primary, *cursor; 984 struct qxl_device *qdev = to_qxl(dev); 985 int r; 986 987 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL); 988 if (!qxl_crtc) 989 return -ENOMEM; 990 991 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY); 992 if (IS_ERR(primary)) { 993 r = -ENOMEM; 994 goto free_mem; 995 } 996 997 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR); 998 if (IS_ERR(cursor)) { 999 r = -ENOMEM; 1000 goto clean_primary; 1001 } 1002 1003 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor, 1004 &qxl_crtc_funcs, NULL); 1005 if (r) 1006 goto clean_cursor; 1007 1008 qxl_crtc->index = crtc_id; 1009 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs); 1010 return 0; 1011 1012 clean_cursor: 1013 drm_plane_cleanup(cursor); 1014 kfree(cursor); 1015 clean_primary: 1016 drm_plane_cleanup(primary); 1017 kfree(primary); 1018 free_mem: 1019 kfree(qxl_crtc); 1020 return r; 1021 } 1022 1023 static int qxl_conn_get_modes(struct drm_connector *connector) 1024 { 1025 struct drm_device *dev = connector->dev; 1026 struct qxl_device *qdev = to_qxl(dev); 1027 struct qxl_output *output = drm_connector_to_qxl_output(connector); 1028 unsigned int pwidth = 1024; 1029 unsigned int pheight = 768; 1030 int ret = 0; 1031 1032 if (qdev->client_monitors_config) { 1033 struct qxl_head *head; 1034 head = &qdev->client_monitors_config->heads[output->index]; 1035 if (head->width) 1036 pwidth = head->width; 1037 if (head->height) 1038 pheight = head->height; 1039 } 1040 1041 ret += drm_add_modes_noedid(connector, 8192, 8192); 1042 ret += qxl_add_extra_modes(connector); 1043 ret += qxl_add_monitors_config_modes(connector); 1044 drm_set_preferred_mode(connector, pwidth, pheight); 1045 return ret; 1046 } 1047 1048 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector, 1049 struct drm_display_mode *mode) 1050 { 1051 struct drm_device *ddev = connector->dev; 1052 struct qxl_device *qdev = to_qxl(ddev); 1053 1054 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0) 1055 return MODE_BAD; 1056 1057 return MODE_OK; 1058 } 1059 1060 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector) 1061 { 1062 struct qxl_output *qxl_output = 1063 drm_connector_to_qxl_output(connector); 1064 1065 DRM_DEBUG("\n"); 1066 return &qxl_output->enc; 1067 } 1068 1069 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = { 1070 .get_modes = qxl_conn_get_modes, 1071 .mode_valid = qxl_conn_mode_valid, 1072 .best_encoder = qxl_best_encoder, 1073 }; 1074 1075 static enum drm_connector_status qxl_conn_detect( 1076 struct drm_connector *connector, 1077 bool force) 1078 { 1079 struct qxl_output *output = 1080 drm_connector_to_qxl_output(connector); 1081 struct drm_device *ddev = connector->dev; 1082 struct qxl_device *qdev = to_qxl(ddev); 1083 bool connected = false; 1084 1085 /* The first monitor is always connected */ 1086 if (!qdev->client_monitors_config) { 1087 if (output->index == 0) 1088 connected = true; 1089 } else 1090 connected = qdev->client_monitors_config->count > output->index && 1091 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]); 1092 1093 DRM_DEBUG("#%d connected: %d\n", output->index, connected); 1094 1095 return connected ? connector_status_connected 1096 : connector_status_disconnected; 1097 } 1098 1099 static void qxl_conn_destroy(struct drm_connector *connector) 1100 { 1101 struct qxl_output *qxl_output = 1102 drm_connector_to_qxl_output(connector); 1103 1104 drm_connector_unregister(connector); 1105 drm_connector_cleanup(connector); 1106 kfree(qxl_output); 1107 } 1108 1109 static const struct drm_connector_funcs qxl_connector_funcs = { 1110 .detect = qxl_conn_detect, 1111 .fill_modes = drm_helper_probe_single_connector_modes, 1112 .destroy = qxl_conn_destroy, 1113 .reset = drm_atomic_helper_connector_reset, 1114 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 1115 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 1116 }; 1117 1118 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev) 1119 { 1120 if (qdev->hotplug_mode_update_property) 1121 return 0; 1122 1123 qdev->hotplug_mode_update_property = 1124 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE, 1125 "hotplug_mode_update", 0, 1); 1126 1127 return 0; 1128 } 1129 1130 static int qdev_output_init(struct drm_device *dev, int num_output) 1131 { 1132 struct qxl_device *qdev = to_qxl(dev); 1133 struct qxl_output *qxl_output; 1134 struct drm_connector *connector; 1135 struct drm_encoder *encoder; 1136 int ret; 1137 1138 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL); 1139 if (!qxl_output) 1140 return -ENOMEM; 1141 1142 qxl_output->index = num_output; 1143 1144 connector = &qxl_output->base; 1145 encoder = &qxl_output->enc; 1146 drm_connector_init(dev, &qxl_output->base, 1147 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); 1148 1149 ret = drm_simple_encoder_init(dev, &qxl_output->enc, 1150 DRM_MODE_ENCODER_VIRTUAL); 1151 if (ret) { 1152 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n", 1153 ret); 1154 goto err_drm_connector_cleanup; 1155 } 1156 1157 /* we get HPD via client monitors config */ 1158 connector->polled = DRM_CONNECTOR_POLL_HPD; 1159 encoder->possible_crtcs = 1 << num_output; 1160 drm_connector_attach_encoder(&qxl_output->base, 1161 &qxl_output->enc); 1162 drm_connector_helper_add(connector, &qxl_connector_helper_funcs); 1163 1164 drm_object_attach_property(&connector->base, 1165 qdev->hotplug_mode_update_property, 0); 1166 drm_object_attach_property(&connector->base, 1167 dev->mode_config.suggested_x_property, 0); 1168 drm_object_attach_property(&connector->base, 1169 dev->mode_config.suggested_y_property, 0); 1170 return 0; 1171 1172 err_drm_connector_cleanup: 1173 drm_connector_cleanup(&qxl_output->base); 1174 kfree(qxl_output); 1175 return ret; 1176 } 1177 1178 static struct drm_framebuffer * 1179 qxl_user_framebuffer_create(struct drm_device *dev, 1180 struct drm_file *file_priv, 1181 const struct drm_mode_fb_cmd2 *mode_cmd) 1182 { 1183 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd, 1184 &qxl_fb_funcs); 1185 } 1186 1187 static const struct drm_mode_config_funcs qxl_mode_funcs = { 1188 .fb_create = qxl_user_framebuffer_create, 1189 .atomic_check = drm_atomic_helper_check, 1190 .atomic_commit = drm_atomic_helper_commit, 1191 }; 1192 1193 int qxl_create_monitors_object(struct qxl_device *qdev) 1194 { 1195 int ret; 1196 struct drm_gem_object *gobj; 1197 struct iosys_map map; 1198 int monitors_config_size = sizeof(struct qxl_monitors_config) + 1199 qxl_num_crtc * sizeof(struct qxl_head); 1200 1201 ret = qxl_gem_object_create(qdev, monitors_config_size, 0, 1202 QXL_GEM_DOMAIN_VRAM, 1203 false, false, NULL, &gobj); 1204 if (ret) { 1205 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret); 1206 return -ENOMEM; 1207 } 1208 qdev->monitors_config_bo = gem_to_qxl_bo(gobj); 1209 1210 ret = qxl_bo_vmap(qdev->monitors_config_bo, &map); 1211 if (ret) 1212 return ret; 1213 1214 qdev->monitors_config = qdev->monitors_config_bo->kptr; 1215 qdev->ram_header->monitors_config = 1216 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); 1217 1218 memset(qdev->monitors_config, 0, monitors_config_size); 1219 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), 1220 GFP_KERNEL); 1221 if (!qdev->dumb_heads) { 1222 qxl_destroy_monitors_object(qdev); 1223 return -ENOMEM; 1224 } 1225 return 0; 1226 } 1227 1228 int qxl_destroy_monitors_object(struct qxl_device *qdev) 1229 { 1230 int ret; 1231 1232 if (!qdev->monitors_config_bo) 1233 return 0; 1234 1235 kfree(qdev->dumb_heads); 1236 qdev->dumb_heads = NULL; 1237 1238 qdev->monitors_config = NULL; 1239 qdev->ram_header->monitors_config = 0; 1240 1241 ret = qxl_bo_vunmap(qdev->monitors_config_bo); 1242 if (ret) 1243 return ret; 1244 1245 qxl_bo_unref(&qdev->monitors_config_bo); 1246 return 0; 1247 } 1248 1249 int qxl_modeset_init(struct qxl_device *qdev) 1250 { 1251 int i; 1252 int ret; 1253 1254 ret = drmm_mode_config_init(&qdev->ddev); 1255 if (ret) 1256 return ret; 1257 1258 ret = qxl_create_monitors_object(qdev); 1259 if (ret) 1260 return ret; 1261 1262 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs; 1263 1264 /* modes will be validated against the framebuffer size */ 1265 qdev->ddev.mode_config.min_width = 0; 1266 qdev->ddev.mode_config.min_height = 0; 1267 qdev->ddev.mode_config.max_width = 8192; 1268 qdev->ddev.mode_config.max_height = 8192; 1269 1270 drm_mode_create_suggested_offset_properties(&qdev->ddev); 1271 qxl_mode_create_hotplug_mode_update_property(qdev); 1272 1273 for (i = 0 ; i < qxl_num_crtc; ++i) { 1274 qdev_crtc_init(&qdev->ddev, i); 1275 qdev_output_init(&qdev->ddev, i); 1276 } 1277 1278 qxl_display_read_client_monitors_config(qdev); 1279 1280 drm_mode_config_reset(&qdev->ddev); 1281 return 0; 1282 } 1283 1284 void qxl_modeset_fini(struct qxl_device *qdev) 1285 { 1286 if (qdev->dumb_shadow_bo) { 1287 qxl_bo_unpin(qdev->dumb_shadow_bo); 1288 drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base); 1289 qdev->dumb_shadow_bo = NULL; 1290 } 1291 qxl_destroy_monitors_object(qdev); 1292 } 1293