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