1 /************************************************************************** 2 * 3 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 24 * USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #include "vmwgfx_kms.h" 29 30 31 /* Might need a hrtimer here? */ 32 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1) 33 34 void vmw_du_cleanup(struct vmw_display_unit *du) 35 { 36 if (du->cursor_surface) 37 vmw_surface_unreference(&du->cursor_surface); 38 if (du->cursor_dmabuf) 39 vmw_dmabuf_unreference(&du->cursor_dmabuf); 40 drm_connector_unregister(&du->connector); 41 drm_crtc_cleanup(&du->crtc); 42 drm_encoder_cleanup(&du->encoder); 43 drm_connector_cleanup(&du->connector); 44 } 45 46 /* 47 * Display Unit Cursor functions 48 */ 49 50 int vmw_cursor_update_image(struct vmw_private *dev_priv, 51 u32 *image, u32 width, u32 height, 52 u32 hotspotX, u32 hotspotY) 53 { 54 struct { 55 u32 cmd; 56 SVGAFifoCmdDefineAlphaCursor cursor; 57 } *cmd; 58 u32 image_size = width * height * 4; 59 u32 cmd_size = sizeof(*cmd) + image_size; 60 61 if (!image) 62 return -EINVAL; 63 64 cmd = vmw_fifo_reserve(dev_priv, cmd_size); 65 if (unlikely(cmd == NULL)) { 66 DRM_ERROR("Fifo reserve failed.\n"); 67 return -ENOMEM; 68 } 69 70 memset(cmd, 0, sizeof(*cmd)); 71 72 memcpy(&cmd[1], image, image_size); 73 74 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR; 75 cmd->cursor.id = 0; 76 cmd->cursor.width = width; 77 cmd->cursor.height = height; 78 cmd->cursor.hotspotX = hotspotX; 79 cmd->cursor.hotspotY = hotspotY; 80 81 vmw_fifo_commit_flush(dev_priv, cmd_size); 82 83 return 0; 84 } 85 86 int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv, 87 struct vmw_dma_buffer *dmabuf, 88 u32 width, u32 height, 89 u32 hotspotX, u32 hotspotY) 90 { 91 struct ttm_bo_kmap_obj map; 92 unsigned long kmap_offset; 93 unsigned long kmap_num; 94 void *virtual; 95 bool dummy; 96 int ret; 97 98 kmap_offset = 0; 99 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT; 100 101 ret = ttm_bo_reserve(&dmabuf->base, true, false, NULL); 102 if (unlikely(ret != 0)) { 103 DRM_ERROR("reserve failed\n"); 104 return -EINVAL; 105 } 106 107 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map); 108 if (unlikely(ret != 0)) 109 goto err_unreserve; 110 111 virtual = ttm_kmap_obj_virtual(&map, &dummy); 112 ret = vmw_cursor_update_image(dev_priv, virtual, width, height, 113 hotspotX, hotspotY); 114 115 ttm_bo_kunmap(&map); 116 err_unreserve: 117 ttm_bo_unreserve(&dmabuf->base); 118 119 return ret; 120 } 121 122 123 void vmw_cursor_update_position(struct vmw_private *dev_priv, 124 bool show, int x, int y) 125 { 126 u32 *fifo_mem = dev_priv->mmio_virt; 127 uint32_t count; 128 129 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON); 130 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X); 131 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y); 132 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT); 133 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT); 134 } 135 136 137 /* 138 * vmw_du_crtc_cursor_set2 - Driver cursor_set2 callback. 139 */ 140 int vmw_du_crtc_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, 141 uint32_t handle, uint32_t width, uint32_t height, 142 int32_t hot_x, int32_t hot_y) 143 { 144 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 145 struct vmw_display_unit *du = vmw_crtc_to_du(crtc); 146 struct vmw_surface *surface = NULL; 147 struct vmw_dma_buffer *dmabuf = NULL; 148 s32 hotspot_x, hotspot_y; 149 int ret; 150 151 /* 152 * FIXME: Unclear whether there's any global state touched by the 153 * cursor_set function, especially vmw_cursor_update_position looks 154 * suspicious. For now take the easy route and reacquire all locks. We 155 * can do this since the caller in the drm core doesn't check anything 156 * which is protected by any looks. 157 */ 158 drm_modeset_unlock_crtc(crtc); 159 drm_modeset_lock_all(dev_priv->dev); 160 hotspot_x = hot_x + du->hotspot_x; 161 hotspot_y = hot_y + du->hotspot_y; 162 163 /* A lot of the code assumes this */ 164 if (handle && (width != 64 || height != 64)) { 165 ret = -EINVAL; 166 goto out; 167 } 168 169 if (handle) { 170 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 171 172 ret = vmw_user_lookup_handle(dev_priv, tfile, 173 handle, &surface, &dmabuf); 174 if (ret) { 175 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret); 176 ret = -EINVAL; 177 goto out; 178 } 179 } 180 181 /* need to do this before taking down old image */ 182 if (surface && !surface->snooper.image) { 183 DRM_ERROR("surface not suitable for cursor\n"); 184 vmw_surface_unreference(&surface); 185 ret = -EINVAL; 186 goto out; 187 } 188 189 /* takedown old cursor */ 190 if (du->cursor_surface) { 191 du->cursor_surface->snooper.crtc = NULL; 192 vmw_surface_unreference(&du->cursor_surface); 193 } 194 if (du->cursor_dmabuf) 195 vmw_dmabuf_unreference(&du->cursor_dmabuf); 196 197 /* setup new image */ 198 ret = 0; 199 if (surface) { 200 /* vmw_user_surface_lookup takes one reference */ 201 du->cursor_surface = surface; 202 203 du->cursor_surface->snooper.crtc = crtc; 204 du->cursor_age = du->cursor_surface->snooper.age; 205 ret = vmw_cursor_update_image(dev_priv, surface->snooper.image, 206 64, 64, hotspot_x, hotspot_y); 207 } else if (dmabuf) { 208 /* vmw_user_surface_lookup takes one reference */ 209 du->cursor_dmabuf = dmabuf; 210 211 ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height, 212 hotspot_x, hotspot_y); 213 } else { 214 vmw_cursor_update_position(dev_priv, false, 0, 0); 215 goto out; 216 } 217 218 if (!ret) { 219 vmw_cursor_update_position(dev_priv, true, 220 du->cursor_x + hotspot_x, 221 du->cursor_y + hotspot_y); 222 du->core_hotspot_x = hot_x; 223 du->core_hotspot_y = hot_y; 224 } 225 226 out: 227 drm_modeset_unlock_all(dev_priv->dev); 228 drm_modeset_lock_crtc(crtc, crtc->cursor); 229 230 return ret; 231 } 232 233 int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) 234 { 235 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 236 struct vmw_display_unit *du = vmw_crtc_to_du(crtc); 237 bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false; 238 239 du->cursor_x = x + du->set_gui_x; 240 du->cursor_y = y + du->set_gui_y; 241 242 /* 243 * FIXME: Unclear whether there's any global state touched by the 244 * cursor_set function, especially vmw_cursor_update_position looks 245 * suspicious. For now take the easy route and reacquire all locks. We 246 * can do this since the caller in the drm core doesn't check anything 247 * which is protected by any looks. 248 */ 249 drm_modeset_unlock_crtc(crtc); 250 drm_modeset_lock_all(dev_priv->dev); 251 252 vmw_cursor_update_position(dev_priv, shown, 253 du->cursor_x + du->hotspot_x + 254 du->core_hotspot_x, 255 du->cursor_y + du->hotspot_y + 256 du->core_hotspot_y); 257 258 drm_modeset_unlock_all(dev_priv->dev); 259 drm_modeset_lock_crtc(crtc, crtc->cursor); 260 261 return 0; 262 } 263 264 void vmw_kms_cursor_snoop(struct vmw_surface *srf, 265 struct ttm_object_file *tfile, 266 struct ttm_buffer_object *bo, 267 SVGA3dCmdHeader *header) 268 { 269 struct ttm_bo_kmap_obj map; 270 unsigned long kmap_offset; 271 unsigned long kmap_num; 272 SVGA3dCopyBox *box; 273 unsigned box_count; 274 void *virtual; 275 bool dummy; 276 struct vmw_dma_cmd { 277 SVGA3dCmdHeader header; 278 SVGA3dCmdSurfaceDMA dma; 279 } *cmd; 280 int i, ret; 281 282 cmd = container_of(header, struct vmw_dma_cmd, header); 283 284 /* No snooper installed */ 285 if (!srf->snooper.image) 286 return; 287 288 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) { 289 DRM_ERROR("face and mipmap for cursors should never != 0\n"); 290 return; 291 } 292 293 if (cmd->header.size < 64) { 294 DRM_ERROR("at least one full copy box must be given\n"); 295 return; 296 } 297 298 box = (SVGA3dCopyBox *)&cmd[1]; 299 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) / 300 sizeof(SVGA3dCopyBox); 301 302 if (cmd->dma.guest.ptr.offset % PAGE_SIZE || 303 box->x != 0 || box->y != 0 || box->z != 0 || 304 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 || 305 box->d != 1 || box_count != 1) { 306 /* TODO handle none page aligned offsets */ 307 /* TODO handle more dst & src != 0 */ 308 /* TODO handle more then one copy */ 309 DRM_ERROR("Cant snoop dma request for cursor!\n"); 310 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n", 311 box->srcx, box->srcy, box->srcz, 312 box->x, box->y, box->z, 313 box->w, box->h, box->d, box_count, 314 cmd->dma.guest.ptr.offset); 315 return; 316 } 317 318 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT; 319 kmap_num = (64*64*4) >> PAGE_SHIFT; 320 321 ret = ttm_bo_reserve(bo, true, false, NULL); 322 if (unlikely(ret != 0)) { 323 DRM_ERROR("reserve failed\n"); 324 return; 325 } 326 327 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map); 328 if (unlikely(ret != 0)) 329 goto err_unreserve; 330 331 virtual = ttm_kmap_obj_virtual(&map, &dummy); 332 333 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) { 334 memcpy(srf->snooper.image, virtual, 64*64*4); 335 } else { 336 /* Image is unsigned pointer. */ 337 for (i = 0; i < box->h; i++) 338 memcpy(srf->snooper.image + i * 64, 339 virtual + i * cmd->dma.guest.pitch, 340 box->w * 4); 341 } 342 343 srf->snooper.age++; 344 345 ttm_bo_kunmap(&map); 346 err_unreserve: 347 ttm_bo_unreserve(bo); 348 } 349 350 /** 351 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots 352 * 353 * @dev_priv: Pointer to the device private struct. 354 * 355 * Clears all legacy hotspots. 356 */ 357 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv) 358 { 359 struct drm_device *dev = dev_priv->dev; 360 struct vmw_display_unit *du; 361 struct drm_crtc *crtc; 362 363 drm_modeset_lock_all(dev); 364 drm_for_each_crtc(crtc, dev) { 365 du = vmw_crtc_to_du(crtc); 366 367 du->hotspot_x = 0; 368 du->hotspot_y = 0; 369 } 370 drm_modeset_unlock_all(dev); 371 } 372 373 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv) 374 { 375 struct drm_device *dev = dev_priv->dev; 376 struct vmw_display_unit *du; 377 struct drm_crtc *crtc; 378 379 mutex_lock(&dev->mode_config.mutex); 380 381 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 382 du = vmw_crtc_to_du(crtc); 383 if (!du->cursor_surface || 384 du->cursor_age == du->cursor_surface->snooper.age) 385 continue; 386 387 du->cursor_age = du->cursor_surface->snooper.age; 388 vmw_cursor_update_image(dev_priv, 389 du->cursor_surface->snooper.image, 390 64, 64, 391 du->hotspot_x + du->core_hotspot_x, 392 du->hotspot_y + du->core_hotspot_y); 393 } 394 395 mutex_unlock(&dev->mode_config.mutex); 396 } 397 398 /* 399 * Generic framebuffer code 400 */ 401 402 /* 403 * Surface framebuffer code 404 */ 405 406 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer) 407 { 408 struct vmw_framebuffer_surface *vfbs = 409 vmw_framebuffer_to_vfbs(framebuffer); 410 411 drm_framebuffer_cleanup(framebuffer); 412 vmw_surface_unreference(&vfbs->surface); 413 if (vfbs->base.user_obj) 414 ttm_base_object_unref(&vfbs->base.user_obj); 415 416 kfree(vfbs); 417 } 418 419 static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer, 420 struct drm_file *file_priv, 421 unsigned flags, unsigned color, 422 struct drm_clip_rect *clips, 423 unsigned num_clips) 424 { 425 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev); 426 struct vmw_framebuffer_surface *vfbs = 427 vmw_framebuffer_to_vfbs(framebuffer); 428 struct drm_clip_rect norect; 429 int ret, inc = 1; 430 431 /* Legacy Display Unit does not support 3D */ 432 if (dev_priv->active_display_unit == vmw_du_legacy) 433 return -EINVAL; 434 435 drm_modeset_lock_all(dev_priv->dev); 436 437 ret = ttm_read_lock(&dev_priv->reservation_sem, true); 438 if (unlikely(ret != 0)) { 439 drm_modeset_unlock_all(dev_priv->dev); 440 return ret; 441 } 442 443 if (!num_clips) { 444 num_clips = 1; 445 clips = &norect; 446 norect.x1 = norect.y1 = 0; 447 norect.x2 = framebuffer->width; 448 norect.y2 = framebuffer->height; 449 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 450 num_clips /= 2; 451 inc = 2; /* skip source rects */ 452 } 453 454 if (dev_priv->active_display_unit == vmw_du_screen_object) 455 ret = vmw_kms_sou_do_surface_dirty(dev_priv, &vfbs->base, 456 clips, NULL, NULL, 0, 0, 457 num_clips, inc, NULL); 458 else 459 ret = vmw_kms_stdu_surface_dirty(dev_priv, &vfbs->base, 460 clips, NULL, NULL, 0, 0, 461 num_clips, inc, NULL); 462 463 vmw_fifo_flush(dev_priv, false); 464 ttm_read_unlock(&dev_priv->reservation_sem); 465 466 drm_modeset_unlock_all(dev_priv->dev); 467 468 return 0; 469 } 470 471 /** 472 * vmw_kms_readback - Perform a readback from the screen system to 473 * a dma-buffer backed framebuffer. 474 * 475 * @dev_priv: Pointer to the device private structure. 476 * @file_priv: Pointer to a struct drm_file identifying the caller. 477 * Must be set to NULL if @user_fence_rep is NULL. 478 * @vfb: Pointer to the dma-buffer backed framebuffer. 479 * @user_fence_rep: User-space provided structure for fence information. 480 * Must be set to non-NULL if @file_priv is non-NULL. 481 * @vclips: Array of clip rects. 482 * @num_clips: Number of clip rects in @vclips. 483 * 484 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 485 * interrupted. 486 */ 487 int vmw_kms_readback(struct vmw_private *dev_priv, 488 struct drm_file *file_priv, 489 struct vmw_framebuffer *vfb, 490 struct drm_vmw_fence_rep __user *user_fence_rep, 491 struct drm_vmw_rect *vclips, 492 uint32_t num_clips) 493 { 494 switch (dev_priv->active_display_unit) { 495 case vmw_du_screen_object: 496 return vmw_kms_sou_readback(dev_priv, file_priv, vfb, 497 user_fence_rep, vclips, num_clips); 498 case vmw_du_screen_target: 499 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb, 500 user_fence_rep, NULL, vclips, num_clips, 501 1, false, true); 502 default: 503 WARN_ONCE(true, 504 "Readback called with invalid display system.\n"); 505 } 506 507 return -ENOSYS; 508 } 509 510 511 static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = { 512 .destroy = vmw_framebuffer_surface_destroy, 513 .dirty = vmw_framebuffer_surface_dirty, 514 }; 515 516 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv, 517 struct vmw_surface *surface, 518 struct vmw_framebuffer **out, 519 const struct drm_mode_fb_cmd 520 *mode_cmd, 521 bool is_dmabuf_proxy) 522 523 { 524 struct drm_device *dev = dev_priv->dev; 525 struct vmw_framebuffer_surface *vfbs; 526 enum SVGA3dSurfaceFormat format; 527 int ret; 528 529 /* 3D is only supported on HWv8 and newer hosts */ 530 if (dev_priv->active_display_unit == vmw_du_legacy) 531 return -ENOSYS; 532 533 /* 534 * Sanity checks. 535 */ 536 537 /* Surface must be marked as a scanout. */ 538 if (unlikely(!surface->scanout)) 539 return -EINVAL; 540 541 if (unlikely(surface->mip_levels[0] != 1 || 542 surface->num_sizes != 1 || 543 surface->base_size.width < mode_cmd->width || 544 surface->base_size.height < mode_cmd->height || 545 surface->base_size.depth != 1)) { 546 DRM_ERROR("Incompatible surface dimensions " 547 "for requested mode.\n"); 548 return -EINVAL; 549 } 550 551 switch (mode_cmd->depth) { 552 case 32: 553 format = SVGA3D_A8R8G8B8; 554 break; 555 case 24: 556 format = SVGA3D_X8R8G8B8; 557 break; 558 case 16: 559 format = SVGA3D_R5G6B5; 560 break; 561 case 15: 562 format = SVGA3D_A1R5G5B5; 563 break; 564 default: 565 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); 566 return -EINVAL; 567 } 568 569 /* 570 * For DX, surface format validation is done when surface->scanout 571 * is set. 572 */ 573 if (!dev_priv->has_dx && format != surface->format) { 574 DRM_ERROR("Invalid surface format for requested mode.\n"); 575 return -EINVAL; 576 } 577 578 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL); 579 if (!vfbs) { 580 ret = -ENOMEM; 581 goto out_err1; 582 } 583 584 /* XXX get the first 3 from the surface info */ 585 vfbs->base.base.bits_per_pixel = mode_cmd->bpp; 586 vfbs->base.base.pitches[0] = mode_cmd->pitch; 587 vfbs->base.base.depth = mode_cmd->depth; 588 vfbs->base.base.width = mode_cmd->width; 589 vfbs->base.base.height = mode_cmd->height; 590 vfbs->surface = vmw_surface_reference(surface); 591 vfbs->base.user_handle = mode_cmd->handle; 592 vfbs->is_dmabuf_proxy = is_dmabuf_proxy; 593 594 *out = &vfbs->base; 595 596 ret = drm_framebuffer_init(dev, &vfbs->base.base, 597 &vmw_framebuffer_surface_funcs); 598 if (ret) 599 goto out_err2; 600 601 return 0; 602 603 out_err2: 604 vmw_surface_unreference(&surface); 605 kfree(vfbs); 606 out_err1: 607 return ret; 608 } 609 610 /* 611 * Dmabuf framebuffer code 612 */ 613 614 static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer) 615 { 616 struct vmw_framebuffer_dmabuf *vfbd = 617 vmw_framebuffer_to_vfbd(framebuffer); 618 619 drm_framebuffer_cleanup(framebuffer); 620 vmw_dmabuf_unreference(&vfbd->buffer); 621 if (vfbd->base.user_obj) 622 ttm_base_object_unref(&vfbd->base.user_obj); 623 624 kfree(vfbd); 625 } 626 627 static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer, 628 struct drm_file *file_priv, 629 unsigned flags, unsigned color, 630 struct drm_clip_rect *clips, 631 unsigned num_clips) 632 { 633 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev); 634 struct vmw_framebuffer_dmabuf *vfbd = 635 vmw_framebuffer_to_vfbd(framebuffer); 636 struct drm_clip_rect norect; 637 int ret, increment = 1; 638 639 drm_modeset_lock_all(dev_priv->dev); 640 641 ret = ttm_read_lock(&dev_priv->reservation_sem, true); 642 if (unlikely(ret != 0)) { 643 drm_modeset_unlock_all(dev_priv->dev); 644 return ret; 645 } 646 647 if (!num_clips) { 648 num_clips = 1; 649 clips = &norect; 650 norect.x1 = norect.y1 = 0; 651 norect.x2 = framebuffer->width; 652 norect.y2 = framebuffer->height; 653 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { 654 num_clips /= 2; 655 increment = 2; 656 } 657 658 switch (dev_priv->active_display_unit) { 659 case vmw_du_screen_target: 660 ret = vmw_kms_stdu_dma(dev_priv, NULL, &vfbd->base, NULL, 661 clips, NULL, num_clips, increment, 662 true, true); 663 break; 664 case vmw_du_screen_object: 665 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, &vfbd->base, 666 clips, NULL, num_clips, 667 increment, true, NULL); 668 break; 669 case vmw_du_legacy: 670 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0, 671 clips, num_clips, increment); 672 break; 673 default: 674 ret = -EINVAL; 675 WARN_ONCE(true, "Dirty called with invalid display system.\n"); 676 break; 677 } 678 679 vmw_fifo_flush(dev_priv, false); 680 ttm_read_unlock(&dev_priv->reservation_sem); 681 682 drm_modeset_unlock_all(dev_priv->dev); 683 684 return ret; 685 } 686 687 static const struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = { 688 .destroy = vmw_framebuffer_dmabuf_destroy, 689 .dirty = vmw_framebuffer_dmabuf_dirty, 690 }; 691 692 /** 693 * Pin the dmabuffer to the start of vram. 694 */ 695 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb) 696 { 697 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); 698 struct vmw_dma_buffer *buf; 699 int ret; 700 701 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : 702 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; 703 704 if (!buf) 705 return 0; 706 707 switch (dev_priv->active_display_unit) { 708 case vmw_du_legacy: 709 vmw_overlay_pause_all(dev_priv); 710 ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false); 711 vmw_overlay_resume_all(dev_priv); 712 break; 713 case vmw_du_screen_object: 714 case vmw_du_screen_target: 715 if (vfb->dmabuf) 716 return vmw_dmabuf_pin_in_vram_or_gmr(dev_priv, buf, 717 false); 718 719 return vmw_dmabuf_pin_in_placement(dev_priv, buf, 720 &vmw_mob_placement, false); 721 default: 722 return -EINVAL; 723 } 724 725 return ret; 726 } 727 728 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb) 729 { 730 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); 731 struct vmw_dma_buffer *buf; 732 733 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : 734 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; 735 736 if (WARN_ON(!buf)) 737 return 0; 738 739 return vmw_dmabuf_unpin(dev_priv, buf, false); 740 } 741 742 /** 743 * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf 744 * 745 * @dev: DRM device 746 * @mode_cmd: parameters for the new surface 747 * @dmabuf_mob: MOB backing the DMA buf 748 * @srf_out: newly created surface 749 * 750 * When the content FB is a DMA buf, we create a surface as a proxy to the 751 * same buffer. This way we can do a surface copy rather than a surface DMA. 752 * This is a more efficient approach 753 * 754 * RETURNS: 755 * 0 on success, error code otherwise 756 */ 757 static int vmw_create_dmabuf_proxy(struct drm_device *dev, 758 const struct drm_mode_fb_cmd *mode_cmd, 759 struct vmw_dma_buffer *dmabuf_mob, 760 struct vmw_surface **srf_out) 761 { 762 uint32_t format; 763 struct drm_vmw_size content_base_size; 764 struct vmw_resource *res; 765 unsigned int bytes_pp; 766 int ret; 767 768 switch (mode_cmd->depth) { 769 case 32: 770 case 24: 771 format = SVGA3D_X8R8G8B8; 772 bytes_pp = 4; 773 break; 774 775 case 16: 776 case 15: 777 format = SVGA3D_R5G6B5; 778 bytes_pp = 2; 779 break; 780 781 case 8: 782 format = SVGA3D_P8; 783 bytes_pp = 1; 784 break; 785 786 default: 787 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth); 788 return -EINVAL; 789 } 790 791 content_base_size.width = mode_cmd->pitch / bytes_pp; 792 content_base_size.height = mode_cmd->height; 793 content_base_size.depth = 1; 794 795 ret = vmw_surface_gb_priv_define(dev, 796 0, /* kernel visible only */ 797 0, /* flags */ 798 format, 799 true, /* can be a scanout buffer */ 800 1, /* num of mip levels */ 801 0, 802 0, 803 content_base_size, 804 srf_out); 805 if (ret) { 806 DRM_ERROR("Failed to allocate proxy content buffer\n"); 807 return ret; 808 } 809 810 res = &(*srf_out)->res; 811 812 /* Reserve and switch the backing mob. */ 813 mutex_lock(&res->dev_priv->cmdbuf_mutex); 814 (void) vmw_resource_reserve(res, false, true); 815 vmw_dmabuf_unreference(&res->backup); 816 res->backup = vmw_dmabuf_reference(dmabuf_mob); 817 res->backup_offset = 0; 818 vmw_resource_unreserve(res, false, NULL, 0); 819 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 820 821 return 0; 822 } 823 824 825 826 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv, 827 struct vmw_dma_buffer *dmabuf, 828 struct vmw_framebuffer **out, 829 const struct drm_mode_fb_cmd 830 *mode_cmd) 831 832 { 833 struct drm_device *dev = dev_priv->dev; 834 struct vmw_framebuffer_dmabuf *vfbd; 835 unsigned int requested_size; 836 int ret; 837 838 requested_size = mode_cmd->height * mode_cmd->pitch; 839 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) { 840 DRM_ERROR("Screen buffer object size is too small " 841 "for requested mode.\n"); 842 return -EINVAL; 843 } 844 845 /* Limited framebuffer color depth support for screen objects */ 846 if (dev_priv->active_display_unit == vmw_du_screen_object) { 847 switch (mode_cmd->depth) { 848 case 32: 849 case 24: 850 /* Only support 32 bpp for 32 and 24 depth fbs */ 851 if (mode_cmd->bpp == 32) 852 break; 853 854 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 855 mode_cmd->depth, mode_cmd->bpp); 856 return -EINVAL; 857 case 16: 858 case 15: 859 /* Only support 16 bpp for 16 and 15 depth fbs */ 860 if (mode_cmd->bpp == 16) 861 break; 862 863 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 864 mode_cmd->depth, mode_cmd->bpp); 865 return -EINVAL; 866 default: 867 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); 868 return -EINVAL; 869 } 870 } 871 872 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); 873 if (!vfbd) { 874 ret = -ENOMEM; 875 goto out_err1; 876 } 877 878 vfbd->base.base.bits_per_pixel = mode_cmd->bpp; 879 vfbd->base.base.pitches[0] = mode_cmd->pitch; 880 vfbd->base.base.depth = mode_cmd->depth; 881 vfbd->base.base.width = mode_cmd->width; 882 vfbd->base.base.height = mode_cmd->height; 883 vfbd->base.dmabuf = true; 884 vfbd->buffer = vmw_dmabuf_reference(dmabuf); 885 vfbd->base.user_handle = mode_cmd->handle; 886 *out = &vfbd->base; 887 888 ret = drm_framebuffer_init(dev, &vfbd->base.base, 889 &vmw_framebuffer_dmabuf_funcs); 890 if (ret) 891 goto out_err2; 892 893 return 0; 894 895 out_err2: 896 vmw_dmabuf_unreference(&dmabuf); 897 kfree(vfbd); 898 out_err1: 899 return ret; 900 } 901 902 /** 903 * vmw_kms_new_framebuffer - Create a new framebuffer. 904 * 905 * @dev_priv: Pointer to device private struct. 906 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around. 907 * Either @dmabuf or @surface must be NULL. 908 * @surface: Pointer to a surface to wrap the kms framebuffer around. 909 * Either @dmabuf or @surface must be NULL. 910 * @only_2d: No presents will occur to this dma buffer based framebuffer. This 911 * Helps the code to do some important optimizations. 912 * @mode_cmd: Frame-buffer metadata. 913 */ 914 struct vmw_framebuffer * 915 vmw_kms_new_framebuffer(struct vmw_private *dev_priv, 916 struct vmw_dma_buffer *dmabuf, 917 struct vmw_surface *surface, 918 bool only_2d, 919 const struct drm_mode_fb_cmd *mode_cmd) 920 { 921 struct vmw_framebuffer *vfb = NULL; 922 bool is_dmabuf_proxy = false; 923 int ret; 924 925 /* 926 * We cannot use the SurfaceDMA command in an non-accelerated VM, 927 * therefore, wrap the DMA buf in a surface so we can use the 928 * SurfaceCopy command. 929 */ 930 if (dmabuf && only_2d && 931 dev_priv->active_display_unit == vmw_du_screen_target) { 932 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd, 933 dmabuf, &surface); 934 if (ret) 935 return ERR_PTR(ret); 936 937 is_dmabuf_proxy = true; 938 } 939 940 /* Create the new framebuffer depending one what we have */ 941 if (surface) { 942 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb, 943 mode_cmd, 944 is_dmabuf_proxy); 945 946 /* 947 * vmw_create_dmabuf_proxy() adds a reference that is no longer 948 * needed 949 */ 950 if (is_dmabuf_proxy) 951 vmw_surface_unreference(&surface); 952 } else if (dmabuf) { 953 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb, 954 mode_cmd); 955 } else { 956 BUG(); 957 } 958 959 if (ret) 960 return ERR_PTR(ret); 961 962 vfb->pin = vmw_framebuffer_pin; 963 vfb->unpin = vmw_framebuffer_unpin; 964 965 return vfb; 966 } 967 968 /* 969 * Generic Kernel modesetting functions 970 */ 971 972 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, 973 struct drm_file *file_priv, 974 const struct drm_mode_fb_cmd2 *mode_cmd2) 975 { 976 struct vmw_private *dev_priv = vmw_priv(dev); 977 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 978 struct vmw_framebuffer *vfb = NULL; 979 struct vmw_surface *surface = NULL; 980 struct vmw_dma_buffer *bo = NULL; 981 struct ttm_base_object *user_obj; 982 struct drm_mode_fb_cmd mode_cmd; 983 int ret; 984 985 mode_cmd.width = mode_cmd2->width; 986 mode_cmd.height = mode_cmd2->height; 987 mode_cmd.pitch = mode_cmd2->pitches[0]; 988 mode_cmd.handle = mode_cmd2->handles[0]; 989 drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth, 990 &mode_cmd.bpp); 991 992 /** 993 * This code should be conditioned on Screen Objects not being used. 994 * If screen objects are used, we can allocate a GMR to hold the 995 * requested framebuffer. 996 */ 997 998 if (!vmw_kms_validate_mode_vram(dev_priv, 999 mode_cmd.pitch, 1000 mode_cmd.height)) { 1001 DRM_ERROR("Requested mode exceed bounding box limit.\n"); 1002 return ERR_PTR(-ENOMEM); 1003 } 1004 1005 /* 1006 * Take a reference on the user object of the resource 1007 * backing the kms fb. This ensures that user-space handle 1008 * lookups on that resource will always work as long as 1009 * it's registered with a kms framebuffer. This is important, 1010 * since vmw_execbuf_process identifies resources in the 1011 * command stream using user-space handles. 1012 */ 1013 1014 user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle); 1015 if (unlikely(user_obj == NULL)) { 1016 DRM_ERROR("Could not locate requested kms frame buffer.\n"); 1017 return ERR_PTR(-ENOENT); 1018 } 1019 1020 /** 1021 * End conditioned code. 1022 */ 1023 1024 /* returns either a dmabuf or surface */ 1025 ret = vmw_user_lookup_handle(dev_priv, tfile, 1026 mode_cmd.handle, 1027 &surface, &bo); 1028 if (ret) 1029 goto err_out; 1030 1031 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface, 1032 !(dev_priv->capabilities & SVGA_CAP_3D), 1033 &mode_cmd); 1034 if (IS_ERR(vfb)) { 1035 ret = PTR_ERR(vfb); 1036 goto err_out; 1037 } 1038 1039 err_out: 1040 /* vmw_user_lookup_handle takes one ref so does new_fb */ 1041 if (bo) 1042 vmw_dmabuf_unreference(&bo); 1043 if (surface) 1044 vmw_surface_unreference(&surface); 1045 1046 if (ret) { 1047 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); 1048 ttm_base_object_unref(&user_obj); 1049 return ERR_PTR(ret); 1050 } else 1051 vfb->user_obj = user_obj; 1052 1053 return &vfb->base; 1054 } 1055 1056 static const struct drm_mode_config_funcs vmw_kms_funcs = { 1057 .fb_create = vmw_kms_fb_create, 1058 }; 1059 1060 static int vmw_kms_generic_present(struct vmw_private *dev_priv, 1061 struct drm_file *file_priv, 1062 struct vmw_framebuffer *vfb, 1063 struct vmw_surface *surface, 1064 uint32_t sid, 1065 int32_t destX, int32_t destY, 1066 struct drm_vmw_rect *clips, 1067 uint32_t num_clips) 1068 { 1069 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips, 1070 &surface->res, destX, destY, 1071 num_clips, 1, NULL); 1072 } 1073 1074 1075 int vmw_kms_present(struct vmw_private *dev_priv, 1076 struct drm_file *file_priv, 1077 struct vmw_framebuffer *vfb, 1078 struct vmw_surface *surface, 1079 uint32_t sid, 1080 int32_t destX, int32_t destY, 1081 struct drm_vmw_rect *clips, 1082 uint32_t num_clips) 1083 { 1084 int ret; 1085 1086 switch (dev_priv->active_display_unit) { 1087 case vmw_du_screen_target: 1088 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips, 1089 &surface->res, destX, destY, 1090 num_clips, 1, NULL); 1091 break; 1092 case vmw_du_screen_object: 1093 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface, 1094 sid, destX, destY, clips, 1095 num_clips); 1096 break; 1097 default: 1098 WARN_ONCE(true, 1099 "Present called with invalid display system.\n"); 1100 ret = -ENOSYS; 1101 break; 1102 } 1103 if (ret) 1104 return ret; 1105 1106 vmw_fifo_flush(dev_priv, false); 1107 1108 return 0; 1109 } 1110 1111 static void 1112 vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv) 1113 { 1114 if (dev_priv->hotplug_mode_update_property) 1115 return; 1116 1117 dev_priv->hotplug_mode_update_property = 1118 drm_property_create_range(dev_priv->dev, 1119 DRM_MODE_PROP_IMMUTABLE, 1120 "hotplug_mode_update", 0, 1); 1121 1122 if (!dev_priv->hotplug_mode_update_property) 1123 return; 1124 1125 } 1126 1127 int vmw_kms_init(struct vmw_private *dev_priv) 1128 { 1129 struct drm_device *dev = dev_priv->dev; 1130 int ret; 1131 1132 drm_mode_config_init(dev); 1133 dev->mode_config.funcs = &vmw_kms_funcs; 1134 dev->mode_config.min_width = 1; 1135 dev->mode_config.min_height = 1; 1136 dev->mode_config.max_width = dev_priv->texture_max_width; 1137 dev->mode_config.max_height = dev_priv->texture_max_height; 1138 1139 drm_mode_create_suggested_offset_properties(dev); 1140 vmw_kms_create_hotplug_mode_update_property(dev_priv); 1141 1142 ret = vmw_kms_stdu_init_display(dev_priv); 1143 if (ret) { 1144 ret = vmw_kms_sou_init_display(dev_priv); 1145 if (ret) /* Fallback */ 1146 ret = vmw_kms_ldu_init_display(dev_priv); 1147 } 1148 1149 return ret; 1150 } 1151 1152 int vmw_kms_close(struct vmw_private *dev_priv) 1153 { 1154 int ret; 1155 1156 /* 1157 * Docs says we should take the lock before calling this function 1158 * but since it destroys encoders and our destructor calls 1159 * drm_encoder_cleanup which takes the lock we deadlock. 1160 */ 1161 drm_mode_config_cleanup(dev_priv->dev); 1162 if (dev_priv->active_display_unit == vmw_du_screen_object) 1163 ret = vmw_kms_sou_close_display(dev_priv); 1164 else if (dev_priv->active_display_unit == vmw_du_screen_target) 1165 ret = vmw_kms_stdu_close_display(dev_priv); 1166 else 1167 ret = vmw_kms_ldu_close_display(dev_priv); 1168 1169 return ret; 1170 } 1171 1172 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, 1173 struct drm_file *file_priv) 1174 { 1175 struct drm_vmw_cursor_bypass_arg *arg = data; 1176 struct vmw_display_unit *du; 1177 struct drm_crtc *crtc; 1178 int ret = 0; 1179 1180 1181 mutex_lock(&dev->mode_config.mutex); 1182 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) { 1183 1184 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1185 du = vmw_crtc_to_du(crtc); 1186 du->hotspot_x = arg->xhot; 1187 du->hotspot_y = arg->yhot; 1188 } 1189 1190 mutex_unlock(&dev->mode_config.mutex); 1191 return 0; 1192 } 1193 1194 crtc = drm_crtc_find(dev, arg->crtc_id); 1195 if (!crtc) { 1196 ret = -ENOENT; 1197 goto out; 1198 } 1199 1200 du = vmw_crtc_to_du(crtc); 1201 1202 du->hotspot_x = arg->xhot; 1203 du->hotspot_y = arg->yhot; 1204 1205 out: 1206 mutex_unlock(&dev->mode_config.mutex); 1207 1208 return ret; 1209 } 1210 1211 int vmw_kms_write_svga(struct vmw_private *vmw_priv, 1212 unsigned width, unsigned height, unsigned pitch, 1213 unsigned bpp, unsigned depth) 1214 { 1215 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1216 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch); 1217 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1218 vmw_mmio_write(pitch, vmw_priv->mmio_virt + 1219 SVGA_FIFO_PITCHLOCK); 1220 vmw_write(vmw_priv, SVGA_REG_WIDTH, width); 1221 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height); 1222 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp); 1223 1224 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) { 1225 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n", 1226 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH)); 1227 return -EINVAL; 1228 } 1229 1230 return 0; 1231 } 1232 1233 int vmw_kms_save_vga(struct vmw_private *vmw_priv) 1234 { 1235 struct vmw_vga_topology_state *save; 1236 uint32_t i; 1237 1238 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH); 1239 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT); 1240 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL); 1241 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1242 vmw_priv->vga_pitchlock = 1243 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK); 1244 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1245 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt + 1246 SVGA_FIFO_PITCHLOCK); 1247 1248 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1249 return 0; 1250 1251 vmw_priv->num_displays = vmw_read(vmw_priv, 1252 SVGA_REG_NUM_GUEST_DISPLAYS); 1253 1254 if (vmw_priv->num_displays == 0) 1255 vmw_priv->num_displays = 1; 1256 1257 for (i = 0; i < vmw_priv->num_displays; ++i) { 1258 save = &vmw_priv->vga_save[i]; 1259 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1260 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY); 1261 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X); 1262 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y); 1263 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH); 1264 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT); 1265 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1266 if (i == 0 && vmw_priv->num_displays == 1 && 1267 save->width == 0 && save->height == 0) { 1268 1269 /* 1270 * It should be fairly safe to assume that these 1271 * values are uninitialized. 1272 */ 1273 1274 save->width = vmw_priv->vga_width - save->pos_x; 1275 save->height = vmw_priv->vga_height - save->pos_y; 1276 } 1277 } 1278 1279 return 0; 1280 } 1281 1282 int vmw_kms_restore_vga(struct vmw_private *vmw_priv) 1283 { 1284 struct vmw_vga_topology_state *save; 1285 uint32_t i; 1286 1287 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width); 1288 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height); 1289 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp); 1290 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1291 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, 1292 vmw_priv->vga_pitchlock); 1293 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1294 vmw_mmio_write(vmw_priv->vga_pitchlock, 1295 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); 1296 1297 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1298 return 0; 1299 1300 for (i = 0; i < vmw_priv->num_displays; ++i) { 1301 save = &vmw_priv->vga_save[i]; 1302 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1303 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary); 1304 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x); 1305 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y); 1306 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width); 1307 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height); 1308 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1309 } 1310 1311 return 0; 1312 } 1313 1314 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, 1315 uint32_t pitch, 1316 uint32_t height) 1317 { 1318 return ((u64) pitch * (u64) height) < (u64) 1319 ((dev_priv->active_display_unit == vmw_du_screen_target) ? 1320 dev_priv->prim_bb_mem : dev_priv->vram_size); 1321 } 1322 1323 1324 /** 1325 * Function called by DRM code called with vbl_lock held. 1326 */ 1327 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe) 1328 { 1329 return 0; 1330 } 1331 1332 /** 1333 * Function called by DRM code called with vbl_lock held. 1334 */ 1335 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe) 1336 { 1337 return -ENOSYS; 1338 } 1339 1340 /** 1341 * Function called by DRM code called with vbl_lock held. 1342 */ 1343 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe) 1344 { 1345 } 1346 1347 1348 /* 1349 * Small shared kms functions. 1350 */ 1351 1352 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num, 1353 struct drm_vmw_rect *rects) 1354 { 1355 struct drm_device *dev = dev_priv->dev; 1356 struct vmw_display_unit *du; 1357 struct drm_connector *con; 1358 1359 mutex_lock(&dev->mode_config.mutex); 1360 1361 #if 0 1362 { 1363 unsigned int i; 1364 1365 DRM_INFO("%s: new layout ", __func__); 1366 for (i = 0; i < num; i++) 1367 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y, 1368 rects[i].w, rects[i].h); 1369 DRM_INFO("\n"); 1370 } 1371 #endif 1372 1373 list_for_each_entry(con, &dev->mode_config.connector_list, head) { 1374 du = vmw_connector_to_du(con); 1375 if (num > du->unit) { 1376 du->pref_width = rects[du->unit].w; 1377 du->pref_height = rects[du->unit].h; 1378 du->pref_active = true; 1379 du->gui_x = rects[du->unit].x; 1380 du->gui_y = rects[du->unit].y; 1381 drm_object_property_set_value 1382 (&con->base, dev->mode_config.suggested_x_property, 1383 du->gui_x); 1384 drm_object_property_set_value 1385 (&con->base, dev->mode_config.suggested_y_property, 1386 du->gui_y); 1387 } else { 1388 du->pref_width = 800; 1389 du->pref_height = 600; 1390 du->pref_active = false; 1391 drm_object_property_set_value 1392 (&con->base, dev->mode_config.suggested_x_property, 1393 0); 1394 drm_object_property_set_value 1395 (&con->base, dev->mode_config.suggested_y_property, 1396 0); 1397 } 1398 con->status = vmw_du_connector_detect(con, true); 1399 } 1400 1401 mutex_unlock(&dev->mode_config.mutex); 1402 drm_sysfs_hotplug_event(dev); 1403 1404 return 0; 1405 } 1406 1407 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc, 1408 u16 *r, u16 *g, u16 *b, 1409 uint32_t start, uint32_t size) 1410 { 1411 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 1412 int i; 1413 1414 for (i = 0; i < size; i++) { 1415 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i, 1416 r[i], g[i], b[i]); 1417 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8); 1418 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8); 1419 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8); 1420 } 1421 } 1422 1423 int vmw_du_connector_dpms(struct drm_connector *connector, int mode) 1424 { 1425 return 0; 1426 } 1427 1428 enum drm_connector_status 1429 vmw_du_connector_detect(struct drm_connector *connector, bool force) 1430 { 1431 uint32_t num_displays; 1432 struct drm_device *dev = connector->dev; 1433 struct vmw_private *dev_priv = vmw_priv(dev); 1434 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1435 1436 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); 1437 1438 return ((vmw_connector_to_du(connector)->unit < num_displays && 1439 du->pref_active) ? 1440 connector_status_connected : connector_status_disconnected); 1441 } 1442 1443 static struct drm_display_mode vmw_kms_connector_builtin[] = { 1444 /* 640x480@60Hz */ 1445 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, 1446 752, 800, 0, 480, 489, 492, 525, 0, 1447 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1448 /* 800x600@60Hz */ 1449 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, 1450 968, 1056, 0, 600, 601, 605, 628, 0, 1451 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1452 /* 1024x768@60Hz */ 1453 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, 1454 1184, 1344, 0, 768, 771, 777, 806, 0, 1455 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1456 /* 1152x864@75Hz */ 1457 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, 1458 1344, 1600, 0, 864, 865, 868, 900, 0, 1459 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1460 /* 1280x768@60Hz */ 1461 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344, 1462 1472, 1664, 0, 768, 771, 778, 798, 0, 1463 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1464 /* 1280x800@60Hz */ 1465 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352, 1466 1480, 1680, 0, 800, 803, 809, 831, 0, 1467 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1468 /* 1280x960@60Hz */ 1469 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376, 1470 1488, 1800, 0, 960, 961, 964, 1000, 0, 1471 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1472 /* 1280x1024@60Hz */ 1473 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328, 1474 1440, 1688, 0, 1024, 1025, 1028, 1066, 0, 1475 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1476 /* 1360x768@60Hz */ 1477 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424, 1478 1536, 1792, 0, 768, 771, 777, 795, 0, 1479 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1480 /* 1440x1050@60Hz */ 1481 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488, 1482 1632, 1864, 0, 1050, 1053, 1057, 1089, 0, 1483 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1484 /* 1440x900@60Hz */ 1485 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520, 1486 1672, 1904, 0, 900, 903, 909, 934, 0, 1487 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1488 /* 1600x1200@60Hz */ 1489 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664, 1490 1856, 2160, 0, 1200, 1201, 1204, 1250, 0, 1491 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1492 /* 1680x1050@60Hz */ 1493 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784, 1494 1960, 2240, 0, 1050, 1053, 1059, 1089, 0, 1495 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1496 /* 1792x1344@60Hz */ 1497 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920, 1498 2120, 2448, 0, 1344, 1345, 1348, 1394, 0, 1499 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1500 /* 1853x1392@60Hz */ 1501 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952, 1502 2176, 2528, 0, 1392, 1393, 1396, 1439, 0, 1503 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1504 /* 1920x1200@60Hz */ 1505 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056, 1506 2256, 2592, 0, 1200, 1203, 1209, 1245, 0, 1507 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1508 /* 1920x1440@60Hz */ 1509 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048, 1510 2256, 2600, 0, 1440, 1441, 1444, 1500, 0, 1511 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1512 /* 2560x1600@60Hz */ 1513 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752, 1514 3032, 3504, 0, 1600, 1603, 1609, 1658, 0, 1515 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1516 /* Terminate */ 1517 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) }, 1518 }; 1519 1520 /** 1521 * vmw_guess_mode_timing - Provide fake timings for a 1522 * 60Hz vrefresh mode. 1523 * 1524 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay 1525 * members filled in. 1526 */ 1527 void vmw_guess_mode_timing(struct drm_display_mode *mode) 1528 { 1529 mode->hsync_start = mode->hdisplay + 50; 1530 mode->hsync_end = mode->hsync_start + 50; 1531 mode->htotal = mode->hsync_end + 50; 1532 1533 mode->vsync_start = mode->vdisplay + 50; 1534 mode->vsync_end = mode->vsync_start + 50; 1535 mode->vtotal = mode->vsync_end + 50; 1536 1537 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6; 1538 mode->vrefresh = drm_mode_vrefresh(mode); 1539 } 1540 1541 1542 int vmw_du_connector_fill_modes(struct drm_connector *connector, 1543 uint32_t max_width, uint32_t max_height) 1544 { 1545 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1546 struct drm_device *dev = connector->dev; 1547 struct vmw_private *dev_priv = vmw_priv(dev); 1548 struct drm_display_mode *mode = NULL; 1549 struct drm_display_mode *bmode; 1550 struct drm_display_mode prefmode = { DRM_MODE("preferred", 1551 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, 1552 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1553 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) 1554 }; 1555 int i; 1556 u32 assumed_bpp = 4; 1557 1558 if (dev_priv->assume_16bpp) 1559 assumed_bpp = 2; 1560 1561 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1562 max_width = min(max_width, dev_priv->stdu_max_width); 1563 max_height = min(max_height, dev_priv->stdu_max_height); 1564 } 1565 1566 /* Add preferred mode */ 1567 mode = drm_mode_duplicate(dev, &prefmode); 1568 if (!mode) 1569 return 0; 1570 mode->hdisplay = du->pref_width; 1571 mode->vdisplay = du->pref_height; 1572 vmw_guess_mode_timing(mode); 1573 1574 if (vmw_kms_validate_mode_vram(dev_priv, 1575 mode->hdisplay * assumed_bpp, 1576 mode->vdisplay)) { 1577 drm_mode_probed_add(connector, mode); 1578 } else { 1579 drm_mode_destroy(dev, mode); 1580 mode = NULL; 1581 } 1582 1583 if (du->pref_mode) { 1584 list_del_init(&du->pref_mode->head); 1585 drm_mode_destroy(dev, du->pref_mode); 1586 } 1587 1588 /* mode might be null here, this is intended */ 1589 du->pref_mode = mode; 1590 1591 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) { 1592 bmode = &vmw_kms_connector_builtin[i]; 1593 if (bmode->hdisplay > max_width || 1594 bmode->vdisplay > max_height) 1595 continue; 1596 1597 if (!vmw_kms_validate_mode_vram(dev_priv, 1598 bmode->hdisplay * assumed_bpp, 1599 bmode->vdisplay)) 1600 continue; 1601 1602 mode = drm_mode_duplicate(dev, bmode); 1603 if (!mode) 1604 return 0; 1605 mode->vrefresh = drm_mode_vrefresh(mode); 1606 1607 drm_mode_probed_add(connector, mode); 1608 } 1609 1610 drm_mode_connector_list_update(connector); 1611 /* Move the prefered mode first, help apps pick the right mode. */ 1612 drm_mode_sort(&connector->modes); 1613 1614 return 1; 1615 } 1616 1617 int vmw_du_connector_set_property(struct drm_connector *connector, 1618 struct drm_property *property, 1619 uint64_t val) 1620 { 1621 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1622 struct vmw_private *dev_priv = vmw_priv(connector->dev); 1623 1624 if (property == dev_priv->implicit_placement_property) 1625 du->is_implicit = val; 1626 1627 return 0; 1628 } 1629 1630 1631 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 1632 struct drm_file *file_priv) 1633 { 1634 struct vmw_private *dev_priv = vmw_priv(dev); 1635 struct drm_vmw_update_layout_arg *arg = 1636 (struct drm_vmw_update_layout_arg *)data; 1637 void __user *user_rects; 1638 struct drm_vmw_rect *rects; 1639 unsigned rects_size; 1640 int ret; 1641 int i; 1642 u64 total_pixels = 0; 1643 struct drm_mode_config *mode_config = &dev->mode_config; 1644 struct drm_vmw_rect bounding_box = {0}; 1645 1646 if (!arg->num_outputs) { 1647 struct drm_vmw_rect def_rect = {0, 0, 800, 600}; 1648 vmw_du_update_layout(dev_priv, 1, &def_rect); 1649 return 0; 1650 } 1651 1652 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); 1653 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), 1654 GFP_KERNEL); 1655 if (unlikely(!rects)) 1656 return -ENOMEM; 1657 1658 user_rects = (void __user *)(unsigned long)arg->rects; 1659 ret = copy_from_user(rects, user_rects, rects_size); 1660 if (unlikely(ret != 0)) { 1661 DRM_ERROR("Failed to get rects.\n"); 1662 ret = -EFAULT; 1663 goto out_free; 1664 } 1665 1666 for (i = 0; i < arg->num_outputs; ++i) { 1667 if (rects[i].x < 0 || 1668 rects[i].y < 0 || 1669 rects[i].x + rects[i].w > mode_config->max_width || 1670 rects[i].y + rects[i].h > mode_config->max_height) { 1671 DRM_ERROR("Invalid GUI layout.\n"); 1672 ret = -EINVAL; 1673 goto out_free; 1674 } 1675 1676 /* 1677 * bounding_box.w and bunding_box.h are used as 1678 * lower-right coordinates 1679 */ 1680 if (rects[i].x + rects[i].w > bounding_box.w) 1681 bounding_box.w = rects[i].x + rects[i].w; 1682 1683 if (rects[i].y + rects[i].h > bounding_box.h) 1684 bounding_box.h = rects[i].y + rects[i].h; 1685 1686 total_pixels += (u64) rects[i].w * (u64) rects[i].h; 1687 } 1688 1689 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1690 /* 1691 * For Screen Targets, the limits for a toplogy are: 1692 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem 1693 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem 1694 */ 1695 u64 bb_mem = bounding_box.w * bounding_box.h * 4; 1696 u64 pixel_mem = total_pixels * 4; 1697 1698 if (bb_mem > dev_priv->prim_bb_mem) { 1699 DRM_ERROR("Topology is beyond supported limits.\n"); 1700 ret = -EINVAL; 1701 goto out_free; 1702 } 1703 1704 if (pixel_mem > dev_priv->prim_bb_mem) { 1705 DRM_ERROR("Combined output size too large\n"); 1706 ret = -EINVAL; 1707 goto out_free; 1708 } 1709 } 1710 1711 vmw_du_update_layout(dev_priv, arg->num_outputs, rects); 1712 1713 out_free: 1714 kfree(rects); 1715 return ret; 1716 } 1717 1718 /** 1719 * vmw_kms_helper_dirty - Helper to build commands and perform actions based 1720 * on a set of cliprects and a set of display units. 1721 * 1722 * @dev_priv: Pointer to a device private structure. 1723 * @framebuffer: Pointer to the framebuffer on which to perform the actions. 1724 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL. 1725 * Cliprects are given in framebuffer coordinates. 1726 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must 1727 * be NULL. Cliprects are given in source coordinates. 1728 * @dest_x: X coordinate offset for the crtc / destination clip rects. 1729 * @dest_y: Y coordinate offset for the crtc / destination clip rects. 1730 * @num_clips: Number of cliprects in the @clips or @vclips array. 1731 * @increment: Integer with which to increment the clip counter when looping. 1732 * Used to skip a predetermined number of clip rects. 1733 * @dirty: Closure structure. See the description of struct vmw_kms_dirty. 1734 */ 1735 int vmw_kms_helper_dirty(struct vmw_private *dev_priv, 1736 struct vmw_framebuffer *framebuffer, 1737 const struct drm_clip_rect *clips, 1738 const struct drm_vmw_rect *vclips, 1739 s32 dest_x, s32 dest_y, 1740 int num_clips, 1741 int increment, 1742 struct vmw_kms_dirty *dirty) 1743 { 1744 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; 1745 struct drm_crtc *crtc; 1746 u32 num_units = 0; 1747 u32 i, k; 1748 1749 dirty->dev_priv = dev_priv; 1750 1751 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { 1752 if (crtc->primary->fb != &framebuffer->base) 1753 continue; 1754 units[num_units++] = vmw_crtc_to_du(crtc); 1755 } 1756 1757 for (k = 0; k < num_units; k++) { 1758 struct vmw_display_unit *unit = units[k]; 1759 s32 crtc_x = unit->crtc.x; 1760 s32 crtc_y = unit->crtc.y; 1761 s32 crtc_width = unit->crtc.mode.hdisplay; 1762 s32 crtc_height = unit->crtc.mode.vdisplay; 1763 const struct drm_clip_rect *clips_ptr = clips; 1764 const struct drm_vmw_rect *vclips_ptr = vclips; 1765 1766 dirty->unit = unit; 1767 if (dirty->fifo_reserve_size > 0) { 1768 dirty->cmd = vmw_fifo_reserve(dev_priv, 1769 dirty->fifo_reserve_size); 1770 if (!dirty->cmd) { 1771 DRM_ERROR("Couldn't reserve fifo space " 1772 "for dirty blits.\n"); 1773 return -ENOMEM; 1774 } 1775 memset(dirty->cmd, 0, dirty->fifo_reserve_size); 1776 } 1777 dirty->num_hits = 0; 1778 for (i = 0; i < num_clips; i++, clips_ptr += increment, 1779 vclips_ptr += increment) { 1780 s32 clip_left; 1781 s32 clip_top; 1782 1783 /* 1784 * Select clip array type. Note that integer type 1785 * in @clips is unsigned short, whereas in @vclips 1786 * it's 32-bit. 1787 */ 1788 if (clips) { 1789 dirty->fb_x = (s32) clips_ptr->x1; 1790 dirty->fb_y = (s32) clips_ptr->y1; 1791 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x - 1792 crtc_x; 1793 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y - 1794 crtc_y; 1795 } else { 1796 dirty->fb_x = vclips_ptr->x; 1797 dirty->fb_y = vclips_ptr->y; 1798 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w + 1799 dest_x - crtc_x; 1800 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h + 1801 dest_y - crtc_y; 1802 } 1803 1804 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x; 1805 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y; 1806 1807 /* Skip this clip if it's outside the crtc region */ 1808 if (dirty->unit_x1 >= crtc_width || 1809 dirty->unit_y1 >= crtc_height || 1810 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0) 1811 continue; 1812 1813 /* Clip right and bottom to crtc limits */ 1814 dirty->unit_x2 = min_t(s32, dirty->unit_x2, 1815 crtc_width); 1816 dirty->unit_y2 = min_t(s32, dirty->unit_y2, 1817 crtc_height); 1818 1819 /* Clip left and top to crtc limits */ 1820 clip_left = min_t(s32, dirty->unit_x1, 0); 1821 clip_top = min_t(s32, dirty->unit_y1, 0); 1822 dirty->unit_x1 -= clip_left; 1823 dirty->unit_y1 -= clip_top; 1824 dirty->fb_x -= clip_left; 1825 dirty->fb_y -= clip_top; 1826 1827 dirty->clip(dirty); 1828 } 1829 1830 dirty->fifo_commit(dirty); 1831 } 1832 1833 return 0; 1834 } 1835 1836 /** 1837 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before 1838 * command submission. 1839 * 1840 * @dev_priv. Pointer to a device private structure. 1841 * @buf: The buffer object 1842 * @interruptible: Whether to perform waits as interruptible. 1843 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false, 1844 * The buffer will be validated as a GMR. Already pinned buffers will not be 1845 * validated. 1846 * 1847 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if 1848 * interrupted by a signal. 1849 */ 1850 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv, 1851 struct vmw_dma_buffer *buf, 1852 bool interruptible, 1853 bool validate_as_mob) 1854 { 1855 struct ttm_buffer_object *bo = &buf->base; 1856 int ret; 1857 1858 ttm_bo_reserve(bo, false, false, NULL); 1859 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible, 1860 validate_as_mob); 1861 if (ret) 1862 ttm_bo_unreserve(bo); 1863 1864 return ret; 1865 } 1866 1867 /** 1868 * vmw_kms_helper_buffer_revert - Undo the actions of 1869 * vmw_kms_helper_buffer_prepare. 1870 * 1871 * @res: Pointer to the buffer object. 1872 * 1873 * Helper to be used if an error forces the caller to undo the actions of 1874 * vmw_kms_helper_buffer_prepare. 1875 */ 1876 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf) 1877 { 1878 if (buf) 1879 ttm_bo_unreserve(&buf->base); 1880 } 1881 1882 /** 1883 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after 1884 * kms command submission. 1885 * 1886 * @dev_priv: Pointer to a device private structure. 1887 * @file_priv: Pointer to a struct drm_file representing the caller's 1888 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely 1889 * if non-NULL, @user_fence_rep must be non-NULL. 1890 * @buf: The buffer object. 1891 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1892 * ref-counted fence pointer is returned here. 1893 * @user_fence_rep: Optional pointer to a user-space provided struct 1894 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the 1895 * function copies fence data to user-space in a fail-safe manner. 1896 */ 1897 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv, 1898 struct drm_file *file_priv, 1899 struct vmw_dma_buffer *buf, 1900 struct vmw_fence_obj **out_fence, 1901 struct drm_vmw_fence_rep __user * 1902 user_fence_rep) 1903 { 1904 struct vmw_fence_obj *fence; 1905 uint32_t handle; 1906 int ret; 1907 1908 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence, 1909 file_priv ? &handle : NULL); 1910 if (buf) 1911 vmw_fence_single_bo(&buf->base, fence); 1912 if (file_priv) 1913 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), 1914 ret, user_fence_rep, fence, 1915 handle); 1916 if (out_fence) 1917 *out_fence = fence; 1918 else 1919 vmw_fence_obj_unreference(&fence); 1920 1921 vmw_kms_helper_buffer_revert(buf); 1922 } 1923 1924 1925 /** 1926 * vmw_kms_helper_resource_revert - Undo the actions of 1927 * vmw_kms_helper_resource_prepare. 1928 * 1929 * @res: Pointer to the resource. Typically a surface. 1930 * 1931 * Helper to be used if an error forces the caller to undo the actions of 1932 * vmw_kms_helper_resource_prepare. 1933 */ 1934 void vmw_kms_helper_resource_revert(struct vmw_resource *res) 1935 { 1936 vmw_kms_helper_buffer_revert(res->backup); 1937 vmw_resource_unreserve(res, false, NULL, 0); 1938 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1939 } 1940 1941 /** 1942 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before 1943 * command submission. 1944 * 1945 * @res: Pointer to the resource. Typically a surface. 1946 * @interruptible: Whether to perform waits as interruptible. 1947 * 1948 * Reserves and validates also the backup buffer if a guest-backed resource. 1949 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1950 * interrupted by a signal. 1951 */ 1952 int vmw_kms_helper_resource_prepare(struct vmw_resource *res, 1953 bool interruptible) 1954 { 1955 int ret = 0; 1956 1957 if (interruptible) 1958 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex); 1959 else 1960 mutex_lock(&res->dev_priv->cmdbuf_mutex); 1961 1962 if (unlikely(ret != 0)) 1963 return -ERESTARTSYS; 1964 1965 ret = vmw_resource_reserve(res, interruptible, false); 1966 if (ret) 1967 goto out_unlock; 1968 1969 if (res->backup) { 1970 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup, 1971 interruptible, 1972 res->dev_priv->has_mob); 1973 if (ret) 1974 goto out_unreserve; 1975 } 1976 ret = vmw_resource_validate(res); 1977 if (ret) 1978 goto out_revert; 1979 return 0; 1980 1981 out_revert: 1982 vmw_kms_helper_buffer_revert(res->backup); 1983 out_unreserve: 1984 vmw_resource_unreserve(res, false, NULL, 0); 1985 out_unlock: 1986 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1987 return ret; 1988 } 1989 1990 /** 1991 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after 1992 * kms command submission. 1993 * 1994 * @res: Pointer to the resource. Typically a surface. 1995 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1996 * ref-counted fence pointer is returned here. 1997 */ 1998 void vmw_kms_helper_resource_finish(struct vmw_resource *res, 1999 struct vmw_fence_obj **out_fence) 2000 { 2001 if (res->backup || out_fence) 2002 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup, 2003 out_fence, NULL); 2004 2005 vmw_resource_unreserve(res, false, NULL, 0); 2006 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 2007 } 2008 2009 /** 2010 * vmw_kms_update_proxy - Helper function to update a proxy surface from 2011 * its backing MOB. 2012 * 2013 * @res: Pointer to the surface resource 2014 * @clips: Clip rects in framebuffer (surface) space. 2015 * @num_clips: Number of clips in @clips. 2016 * @increment: Integer with which to increment the clip counter when looping. 2017 * Used to skip a predetermined number of clip rects. 2018 * 2019 * This function makes sure the proxy surface is updated from its backing MOB 2020 * using the region given by @clips. The surface resource @res and its backing 2021 * MOB needs to be reserved and validated on call. 2022 */ 2023 int vmw_kms_update_proxy(struct vmw_resource *res, 2024 const struct drm_clip_rect *clips, 2025 unsigned num_clips, 2026 int increment) 2027 { 2028 struct vmw_private *dev_priv = res->dev_priv; 2029 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size; 2030 struct { 2031 SVGA3dCmdHeader header; 2032 SVGA3dCmdUpdateGBImage body; 2033 } *cmd; 2034 SVGA3dBox *box; 2035 size_t copy_size = 0; 2036 int i; 2037 2038 if (!clips) 2039 return 0; 2040 2041 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips); 2042 if (!cmd) { 2043 DRM_ERROR("Couldn't reserve fifo space for proxy surface " 2044 "update.\n"); 2045 return -ENOMEM; 2046 } 2047 2048 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) { 2049 box = &cmd->body.box; 2050 2051 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; 2052 cmd->header.size = sizeof(cmd->body); 2053 cmd->body.image.sid = res->id; 2054 cmd->body.image.face = 0; 2055 cmd->body.image.mipmap = 0; 2056 2057 if (clips->x1 > size->width || clips->x2 > size->width || 2058 clips->y1 > size->height || clips->y2 > size->height) { 2059 DRM_ERROR("Invalid clips outsize of framebuffer.\n"); 2060 return -EINVAL; 2061 } 2062 2063 box->x = clips->x1; 2064 box->y = clips->y1; 2065 box->z = 0; 2066 box->w = clips->x2 - clips->x1; 2067 box->h = clips->y2 - clips->y1; 2068 box->d = 1; 2069 2070 copy_size += sizeof(*cmd); 2071 } 2072 2073 vmw_fifo_commit(dev_priv, copy_size); 2074 2075 return 0; 2076 } 2077 2078 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv, 2079 unsigned unit, 2080 u32 max_width, 2081 u32 max_height, 2082 struct drm_connector **p_con, 2083 struct drm_crtc **p_crtc, 2084 struct drm_display_mode **p_mode) 2085 { 2086 struct drm_connector *con; 2087 struct vmw_display_unit *du; 2088 struct drm_display_mode *mode; 2089 int i = 0; 2090 2091 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list, 2092 head) { 2093 if (i == unit) 2094 break; 2095 2096 ++i; 2097 } 2098 2099 if (i != unit) { 2100 DRM_ERROR("Could not find initial display unit.\n"); 2101 return -EINVAL; 2102 } 2103 2104 if (list_empty(&con->modes)) 2105 (void) vmw_du_connector_fill_modes(con, max_width, max_height); 2106 2107 if (list_empty(&con->modes)) { 2108 DRM_ERROR("Could not find initial display mode.\n"); 2109 return -EINVAL; 2110 } 2111 2112 du = vmw_connector_to_du(con); 2113 *p_con = con; 2114 *p_crtc = &du->crtc; 2115 2116 list_for_each_entry(mode, &con->modes, head) { 2117 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2118 break; 2119 } 2120 2121 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2122 *p_mode = mode; 2123 else { 2124 WARN_ONCE(true, "Could not find initial preferred mode.\n"); 2125 *p_mode = list_first_entry(&con->modes, 2126 struct drm_display_mode, 2127 head); 2128 } 2129 2130 return 0; 2131 } 2132 2133 /** 2134 * vmw_kms_del_active - unregister a crtc binding to the implicit framebuffer 2135 * 2136 * @dev_priv: Pointer to a device private struct. 2137 * @du: The display unit of the crtc. 2138 */ 2139 void vmw_kms_del_active(struct vmw_private *dev_priv, 2140 struct vmw_display_unit *du) 2141 { 2142 mutex_lock(&dev_priv->global_kms_state_mutex); 2143 if (du->active_implicit) { 2144 if (--(dev_priv->num_implicit) == 0) 2145 dev_priv->implicit_fb = NULL; 2146 du->active_implicit = false; 2147 } 2148 mutex_unlock(&dev_priv->global_kms_state_mutex); 2149 } 2150 2151 /** 2152 * vmw_kms_add_active - register a crtc binding to an implicit framebuffer 2153 * 2154 * @vmw_priv: Pointer to a device private struct. 2155 * @du: The display unit of the crtc. 2156 * @vfb: The implicit framebuffer 2157 * 2158 * Registers a binding to an implicit framebuffer. 2159 */ 2160 void vmw_kms_add_active(struct vmw_private *dev_priv, 2161 struct vmw_display_unit *du, 2162 struct vmw_framebuffer *vfb) 2163 { 2164 mutex_lock(&dev_priv->global_kms_state_mutex); 2165 WARN_ON_ONCE(!dev_priv->num_implicit && dev_priv->implicit_fb); 2166 2167 if (!du->active_implicit && du->is_implicit) { 2168 dev_priv->implicit_fb = vfb; 2169 du->active_implicit = true; 2170 dev_priv->num_implicit++; 2171 } 2172 mutex_unlock(&dev_priv->global_kms_state_mutex); 2173 } 2174 2175 /** 2176 * vmw_kms_screen_object_flippable - Check whether we can page-flip a crtc. 2177 * 2178 * @dev_priv: Pointer to device-private struct. 2179 * @crtc: The crtc we want to flip. 2180 * 2181 * Returns true or false depending whether it's OK to flip this crtc 2182 * based on the criterion that we must not have more than one implicit 2183 * frame-buffer at any one time. 2184 */ 2185 bool vmw_kms_crtc_flippable(struct vmw_private *dev_priv, 2186 struct drm_crtc *crtc) 2187 { 2188 struct vmw_display_unit *du = vmw_crtc_to_du(crtc); 2189 bool ret; 2190 2191 mutex_lock(&dev_priv->global_kms_state_mutex); 2192 ret = !du->is_implicit || dev_priv->num_implicit == 1; 2193 mutex_unlock(&dev_priv->global_kms_state_mutex); 2194 2195 return ret; 2196 } 2197 2198 /** 2199 * vmw_kms_update_implicit_fb - Update the implicit fb. 2200 * 2201 * @dev_priv: Pointer to device-private struct. 2202 * @crtc: The crtc the new implicit frame-buffer is bound to. 2203 */ 2204 void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv, 2205 struct drm_crtc *crtc) 2206 { 2207 struct vmw_display_unit *du = vmw_crtc_to_du(crtc); 2208 struct vmw_framebuffer *vfb; 2209 2210 mutex_lock(&dev_priv->global_kms_state_mutex); 2211 2212 if (!du->is_implicit) 2213 goto out_unlock; 2214 2215 vfb = vmw_framebuffer_to_vfb(crtc->primary->fb); 2216 WARN_ON_ONCE(dev_priv->num_implicit != 1 && 2217 dev_priv->implicit_fb != vfb); 2218 2219 dev_priv->implicit_fb = vfb; 2220 out_unlock: 2221 mutex_unlock(&dev_priv->global_kms_state_mutex); 2222 } 2223 2224 /** 2225 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement 2226 * property. 2227 * 2228 * @dev_priv: Pointer to a device private struct. 2229 * @immutable: Whether the property is immutable. 2230 * 2231 * Sets up the implicit placement property unless it's already set up. 2232 */ 2233 void 2234 vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv, 2235 bool immutable) 2236 { 2237 if (dev_priv->implicit_placement_property) 2238 return; 2239 2240 dev_priv->implicit_placement_property = 2241 drm_property_create_range(dev_priv->dev, 2242 immutable ? 2243 DRM_MODE_PROP_IMMUTABLE : 0, 2244 "implicit_placement", 0, 1); 2245 2246 } 2247