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, 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 + crtc->x; 240 du->cursor_y = y + crtc->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, 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, num_clips, increment, 667 true, 668 NULL); 669 break; 670 case vmw_du_legacy: 671 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0, 672 clips, num_clips, increment); 673 break; 674 default: 675 ret = -EINVAL; 676 WARN_ONCE(true, "Dirty called with invalid display system.\n"); 677 break; 678 } 679 680 vmw_fifo_flush(dev_priv, false); 681 ttm_read_unlock(&dev_priv->reservation_sem); 682 683 drm_modeset_unlock_all(dev_priv->dev); 684 685 return ret; 686 } 687 688 static const struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = { 689 .destroy = vmw_framebuffer_dmabuf_destroy, 690 .dirty = vmw_framebuffer_dmabuf_dirty, 691 }; 692 693 /** 694 * Pin the dmabuffer to the start of vram. 695 */ 696 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb) 697 { 698 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); 699 struct vmw_dma_buffer *buf; 700 int ret; 701 702 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : 703 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; 704 705 if (!buf) 706 return 0; 707 708 switch (dev_priv->active_display_unit) { 709 case vmw_du_legacy: 710 vmw_overlay_pause_all(dev_priv); 711 ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false); 712 vmw_overlay_resume_all(dev_priv); 713 break; 714 case vmw_du_screen_object: 715 case vmw_du_screen_target: 716 if (vfb->dmabuf) 717 return vmw_dmabuf_pin_in_vram_or_gmr(dev_priv, buf, 718 false); 719 720 return vmw_dmabuf_pin_in_placement(dev_priv, buf, 721 &vmw_mob_placement, false); 722 default: 723 return -EINVAL; 724 } 725 726 return ret; 727 } 728 729 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb) 730 { 731 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); 732 struct vmw_dma_buffer *buf; 733 734 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : 735 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; 736 737 if (WARN_ON(!buf)) 738 return 0; 739 740 return vmw_dmabuf_unpin(dev_priv, buf, false); 741 } 742 743 /** 744 * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf 745 * 746 * @dev: DRM device 747 * @mode_cmd: parameters for the new surface 748 * @dmabuf_mob: MOB backing the DMA buf 749 * @srf_out: newly created surface 750 * 751 * When the content FB is a DMA buf, we create a surface as a proxy to the 752 * same buffer. This way we can do a surface copy rather than a surface DMA. 753 * This is a more efficient approach 754 * 755 * RETURNS: 756 * 0 on success, error code otherwise 757 */ 758 static int vmw_create_dmabuf_proxy(struct drm_device *dev, 759 const struct drm_mode_fb_cmd *mode_cmd, 760 struct vmw_dma_buffer *dmabuf_mob, 761 struct vmw_surface **srf_out) 762 { 763 uint32_t format; 764 struct drm_vmw_size content_base_size; 765 struct vmw_resource *res; 766 unsigned int bytes_pp; 767 int ret; 768 769 switch (mode_cmd->depth) { 770 case 32: 771 case 24: 772 format = SVGA3D_X8R8G8B8; 773 bytes_pp = 4; 774 break; 775 776 case 16: 777 case 15: 778 format = SVGA3D_R5G6B5; 779 bytes_pp = 2; 780 break; 781 782 case 8: 783 format = SVGA3D_P8; 784 bytes_pp = 1; 785 break; 786 787 default: 788 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth); 789 return -EINVAL; 790 } 791 792 content_base_size.width = mode_cmd->pitch / bytes_pp; 793 content_base_size.height = mode_cmd->height; 794 content_base_size.depth = 1; 795 796 ret = vmw_surface_gb_priv_define(dev, 797 0, /* kernel visible only */ 798 0, /* flags */ 799 format, 800 true, /* can be a scanout buffer */ 801 1, /* num of mip levels */ 802 0, 803 0, 804 content_base_size, 805 srf_out); 806 if (ret) { 807 DRM_ERROR("Failed to allocate proxy content buffer\n"); 808 return ret; 809 } 810 811 res = &(*srf_out)->res; 812 813 /* Reserve and switch the backing mob. */ 814 mutex_lock(&res->dev_priv->cmdbuf_mutex); 815 (void) vmw_resource_reserve(res, false, true); 816 vmw_dmabuf_unreference(&res->backup); 817 res->backup = vmw_dmabuf_reference(dmabuf_mob); 818 res->backup_offset = 0; 819 vmw_resource_unreserve(res, false, NULL, 0); 820 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 821 822 return 0; 823 } 824 825 826 827 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv, 828 struct vmw_dma_buffer *dmabuf, 829 struct vmw_framebuffer **out, 830 const struct drm_mode_fb_cmd 831 *mode_cmd) 832 833 { 834 struct drm_device *dev = dev_priv->dev; 835 struct vmw_framebuffer_dmabuf *vfbd; 836 unsigned int requested_size; 837 int ret; 838 839 requested_size = mode_cmd->height * mode_cmd->pitch; 840 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) { 841 DRM_ERROR("Screen buffer object size is too small " 842 "for requested mode.\n"); 843 return -EINVAL; 844 } 845 846 /* Limited framebuffer color depth support for screen objects */ 847 if (dev_priv->active_display_unit == vmw_du_screen_object) { 848 switch (mode_cmd->depth) { 849 case 32: 850 case 24: 851 /* Only support 32 bpp for 32 and 24 depth fbs */ 852 if (mode_cmd->bpp == 32) 853 break; 854 855 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 856 mode_cmd->depth, mode_cmd->bpp); 857 return -EINVAL; 858 case 16: 859 case 15: 860 /* Only support 16 bpp for 16 and 15 depth fbs */ 861 if (mode_cmd->bpp == 16) 862 break; 863 864 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 865 mode_cmd->depth, mode_cmd->bpp); 866 return -EINVAL; 867 default: 868 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); 869 return -EINVAL; 870 } 871 } 872 873 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); 874 if (!vfbd) { 875 ret = -ENOMEM; 876 goto out_err1; 877 } 878 879 vfbd->base.base.bits_per_pixel = mode_cmd->bpp; 880 vfbd->base.base.pitches[0] = mode_cmd->pitch; 881 vfbd->base.base.depth = mode_cmd->depth; 882 vfbd->base.base.width = mode_cmd->width; 883 vfbd->base.base.height = mode_cmd->height; 884 vfbd->base.dmabuf = true; 885 vfbd->buffer = vmw_dmabuf_reference(dmabuf); 886 vfbd->base.user_handle = mode_cmd->handle; 887 *out = &vfbd->base; 888 889 ret = drm_framebuffer_init(dev, &vfbd->base.base, 890 &vmw_framebuffer_dmabuf_funcs); 891 if (ret) 892 goto out_err2; 893 894 return 0; 895 896 out_err2: 897 vmw_dmabuf_unreference(&dmabuf); 898 kfree(vfbd); 899 out_err1: 900 return ret; 901 } 902 903 /** 904 * vmw_kms_new_framebuffer - Create a new framebuffer. 905 * 906 * @dev_priv: Pointer to device private struct. 907 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around. 908 * Either @dmabuf or @surface must be NULL. 909 * @surface: Pointer to a surface to wrap the kms framebuffer around. 910 * Either @dmabuf or @surface must be NULL. 911 * @only_2d: No presents will occur to this dma buffer based framebuffer. This 912 * Helps the code to do some important optimizations. 913 * @mode_cmd: Frame-buffer metadata. 914 */ 915 struct vmw_framebuffer * 916 vmw_kms_new_framebuffer(struct vmw_private *dev_priv, 917 struct vmw_dma_buffer *dmabuf, 918 struct vmw_surface *surface, 919 bool only_2d, 920 const struct drm_mode_fb_cmd *mode_cmd) 921 { 922 struct vmw_framebuffer *vfb = NULL; 923 bool is_dmabuf_proxy = false; 924 int ret; 925 926 /* 927 * We cannot use the SurfaceDMA command in an non-accelerated VM, 928 * therefore, wrap the DMA buf in a surface so we can use the 929 * SurfaceCopy command. 930 */ 931 if (dmabuf && only_2d && 932 dev_priv->active_display_unit == vmw_du_screen_target) { 933 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd, 934 dmabuf, &surface); 935 if (ret) 936 return ERR_PTR(ret); 937 938 is_dmabuf_proxy = true; 939 } 940 941 /* Create the new framebuffer depending one what we have */ 942 if (surface) { 943 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb, 944 mode_cmd, 945 is_dmabuf_proxy); 946 947 /* 948 * vmw_create_dmabuf_proxy() adds a reference that is no longer 949 * needed 950 */ 951 if (is_dmabuf_proxy) 952 vmw_surface_unreference(&surface); 953 } else if (dmabuf) { 954 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb, 955 mode_cmd); 956 } else { 957 BUG(); 958 } 959 960 if (ret) 961 return ERR_PTR(ret); 962 963 vfb->pin = vmw_framebuffer_pin; 964 vfb->unpin = vmw_framebuffer_unpin; 965 966 return vfb; 967 } 968 969 /* 970 * Generic Kernel modesetting functions 971 */ 972 973 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, 974 struct drm_file *file_priv, 975 const struct drm_mode_fb_cmd2 *mode_cmd2) 976 { 977 struct vmw_private *dev_priv = vmw_priv(dev); 978 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 979 struct vmw_framebuffer *vfb = NULL; 980 struct vmw_surface *surface = NULL; 981 struct vmw_dma_buffer *bo = NULL; 982 struct ttm_base_object *user_obj; 983 struct drm_mode_fb_cmd mode_cmd; 984 int ret; 985 986 mode_cmd.width = mode_cmd2->width; 987 mode_cmd.height = mode_cmd2->height; 988 mode_cmd.pitch = mode_cmd2->pitches[0]; 989 mode_cmd.handle = mode_cmd2->handles[0]; 990 drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth, 991 &mode_cmd.bpp); 992 993 /** 994 * This code should be conditioned on Screen Objects not being used. 995 * If screen objects are used, we can allocate a GMR to hold the 996 * requested framebuffer. 997 */ 998 999 if (!vmw_kms_validate_mode_vram(dev_priv, 1000 mode_cmd.pitch, 1001 mode_cmd.height)) { 1002 DRM_ERROR("Requested mode exceed bounding box limit.\n"); 1003 return ERR_PTR(-ENOMEM); 1004 } 1005 1006 /* 1007 * Take a reference on the user object of the resource 1008 * backing the kms fb. This ensures that user-space handle 1009 * lookups on that resource will always work as long as 1010 * it's registered with a kms framebuffer. This is important, 1011 * since vmw_execbuf_process identifies resources in the 1012 * command stream using user-space handles. 1013 */ 1014 1015 user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle); 1016 if (unlikely(user_obj == NULL)) { 1017 DRM_ERROR("Could not locate requested kms frame buffer.\n"); 1018 return ERR_PTR(-ENOENT); 1019 } 1020 1021 /** 1022 * End conditioned code. 1023 */ 1024 1025 /* returns either a dmabuf or surface */ 1026 ret = vmw_user_lookup_handle(dev_priv, tfile, 1027 mode_cmd.handle, 1028 &surface, &bo); 1029 if (ret) 1030 goto err_out; 1031 1032 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface, 1033 !(dev_priv->capabilities & SVGA_CAP_3D), 1034 &mode_cmd); 1035 if (IS_ERR(vfb)) { 1036 ret = PTR_ERR(vfb); 1037 goto err_out; 1038 } 1039 1040 err_out: 1041 /* vmw_user_lookup_handle takes one ref so does new_fb */ 1042 if (bo) 1043 vmw_dmabuf_unreference(&bo); 1044 if (surface) 1045 vmw_surface_unreference(&surface); 1046 1047 if (ret) { 1048 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); 1049 ttm_base_object_unref(&user_obj); 1050 return ERR_PTR(ret); 1051 } else 1052 vfb->user_obj = user_obj; 1053 1054 return &vfb->base; 1055 } 1056 1057 static const struct drm_mode_config_funcs vmw_kms_funcs = { 1058 .fb_create = vmw_kms_fb_create, 1059 }; 1060 1061 static int vmw_kms_generic_present(struct vmw_private *dev_priv, 1062 struct drm_file *file_priv, 1063 struct vmw_framebuffer *vfb, 1064 struct vmw_surface *surface, 1065 uint32_t sid, 1066 int32_t destX, int32_t destY, 1067 struct drm_vmw_rect *clips, 1068 uint32_t num_clips) 1069 { 1070 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips, 1071 &surface->res, destX, destY, 1072 num_clips, 1, NULL); 1073 } 1074 1075 1076 int vmw_kms_present(struct vmw_private *dev_priv, 1077 struct drm_file *file_priv, 1078 struct vmw_framebuffer *vfb, 1079 struct vmw_surface *surface, 1080 uint32_t sid, 1081 int32_t destX, int32_t destY, 1082 struct drm_vmw_rect *clips, 1083 uint32_t num_clips) 1084 { 1085 int ret; 1086 1087 switch (dev_priv->active_display_unit) { 1088 case vmw_du_screen_target: 1089 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips, 1090 &surface->res, destX, destY, 1091 num_clips, 1, NULL); 1092 break; 1093 case vmw_du_screen_object: 1094 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface, 1095 sid, destX, destY, clips, 1096 num_clips); 1097 break; 1098 default: 1099 WARN_ONCE(true, 1100 "Present called with invalid display system.\n"); 1101 ret = -ENOSYS; 1102 break; 1103 } 1104 if (ret) 1105 return ret; 1106 1107 vmw_fifo_flush(dev_priv, false); 1108 1109 return 0; 1110 } 1111 1112 int vmw_kms_init(struct vmw_private *dev_priv) 1113 { 1114 struct drm_device *dev = dev_priv->dev; 1115 int ret; 1116 1117 drm_mode_config_init(dev); 1118 dev->mode_config.funcs = &vmw_kms_funcs; 1119 dev->mode_config.min_width = 1; 1120 dev->mode_config.min_height = 1; 1121 dev->mode_config.max_width = dev_priv->texture_max_width; 1122 dev->mode_config.max_height = dev_priv->texture_max_height; 1123 1124 ret = vmw_kms_stdu_init_display(dev_priv); 1125 if (ret) { 1126 ret = vmw_kms_sou_init_display(dev_priv); 1127 if (ret) /* Fallback */ 1128 ret = vmw_kms_ldu_init_display(dev_priv); 1129 } 1130 1131 return ret; 1132 } 1133 1134 int vmw_kms_close(struct vmw_private *dev_priv) 1135 { 1136 int ret; 1137 1138 /* 1139 * Docs says we should take the lock before calling this function 1140 * but since it destroys encoders and our destructor calls 1141 * drm_encoder_cleanup which takes the lock we deadlock. 1142 */ 1143 drm_mode_config_cleanup(dev_priv->dev); 1144 if (dev_priv->active_display_unit == vmw_du_screen_object) 1145 ret = vmw_kms_sou_close_display(dev_priv); 1146 else if (dev_priv->active_display_unit == vmw_du_screen_target) 1147 ret = vmw_kms_stdu_close_display(dev_priv); 1148 else 1149 ret = vmw_kms_ldu_close_display(dev_priv); 1150 1151 return ret; 1152 } 1153 1154 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, 1155 struct drm_file *file_priv) 1156 { 1157 struct drm_vmw_cursor_bypass_arg *arg = data; 1158 struct vmw_display_unit *du; 1159 struct drm_crtc *crtc; 1160 int ret = 0; 1161 1162 1163 mutex_lock(&dev->mode_config.mutex); 1164 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) { 1165 1166 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1167 du = vmw_crtc_to_du(crtc); 1168 du->hotspot_x = arg->xhot; 1169 du->hotspot_y = arg->yhot; 1170 } 1171 1172 mutex_unlock(&dev->mode_config.mutex); 1173 return 0; 1174 } 1175 1176 crtc = drm_crtc_find(dev, arg->crtc_id); 1177 if (!crtc) { 1178 ret = -ENOENT; 1179 goto out; 1180 } 1181 1182 du = vmw_crtc_to_du(crtc); 1183 1184 du->hotspot_x = arg->xhot; 1185 du->hotspot_y = arg->yhot; 1186 1187 out: 1188 mutex_unlock(&dev->mode_config.mutex); 1189 1190 return ret; 1191 } 1192 1193 int vmw_kms_write_svga(struct vmw_private *vmw_priv, 1194 unsigned width, unsigned height, unsigned pitch, 1195 unsigned bpp, unsigned depth) 1196 { 1197 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1198 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch); 1199 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1200 vmw_mmio_write(pitch, vmw_priv->mmio_virt + 1201 SVGA_FIFO_PITCHLOCK); 1202 vmw_write(vmw_priv, SVGA_REG_WIDTH, width); 1203 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height); 1204 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp); 1205 1206 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) { 1207 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n", 1208 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH)); 1209 return -EINVAL; 1210 } 1211 1212 return 0; 1213 } 1214 1215 int vmw_kms_save_vga(struct vmw_private *vmw_priv) 1216 { 1217 struct vmw_vga_topology_state *save; 1218 uint32_t i; 1219 1220 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH); 1221 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT); 1222 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL); 1223 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1224 vmw_priv->vga_pitchlock = 1225 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK); 1226 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1227 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt + 1228 SVGA_FIFO_PITCHLOCK); 1229 1230 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1231 return 0; 1232 1233 vmw_priv->num_displays = vmw_read(vmw_priv, 1234 SVGA_REG_NUM_GUEST_DISPLAYS); 1235 1236 if (vmw_priv->num_displays == 0) 1237 vmw_priv->num_displays = 1; 1238 1239 for (i = 0; i < vmw_priv->num_displays; ++i) { 1240 save = &vmw_priv->vga_save[i]; 1241 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1242 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY); 1243 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X); 1244 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y); 1245 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH); 1246 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT); 1247 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1248 if (i == 0 && vmw_priv->num_displays == 1 && 1249 save->width == 0 && save->height == 0) { 1250 1251 /* 1252 * It should be fairly safe to assume that these 1253 * values are uninitialized. 1254 */ 1255 1256 save->width = vmw_priv->vga_width - save->pos_x; 1257 save->height = vmw_priv->vga_height - save->pos_y; 1258 } 1259 } 1260 1261 return 0; 1262 } 1263 1264 int vmw_kms_restore_vga(struct vmw_private *vmw_priv) 1265 { 1266 struct vmw_vga_topology_state *save; 1267 uint32_t i; 1268 1269 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width); 1270 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height); 1271 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp); 1272 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1273 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, 1274 vmw_priv->vga_pitchlock); 1275 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1276 vmw_mmio_write(vmw_priv->vga_pitchlock, 1277 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); 1278 1279 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1280 return 0; 1281 1282 for (i = 0; i < vmw_priv->num_displays; ++i) { 1283 save = &vmw_priv->vga_save[i]; 1284 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1285 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary); 1286 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x); 1287 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y); 1288 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width); 1289 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height); 1290 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1291 } 1292 1293 return 0; 1294 } 1295 1296 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, 1297 uint32_t pitch, 1298 uint32_t height) 1299 { 1300 return ((u64) pitch * (u64) height) < (u64) 1301 ((dev_priv->active_display_unit == vmw_du_screen_target) ? 1302 dev_priv->prim_bb_mem : dev_priv->vram_size); 1303 } 1304 1305 1306 /** 1307 * Function called by DRM code called with vbl_lock held. 1308 */ 1309 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe) 1310 { 1311 return 0; 1312 } 1313 1314 /** 1315 * Function called by DRM code called with vbl_lock held. 1316 */ 1317 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe) 1318 { 1319 return -ENOSYS; 1320 } 1321 1322 /** 1323 * Function called by DRM code called with vbl_lock held. 1324 */ 1325 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe) 1326 { 1327 } 1328 1329 1330 /* 1331 * Small shared kms functions. 1332 */ 1333 1334 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num, 1335 struct drm_vmw_rect *rects) 1336 { 1337 struct drm_device *dev = dev_priv->dev; 1338 struct vmw_display_unit *du; 1339 struct drm_connector *con; 1340 1341 mutex_lock(&dev->mode_config.mutex); 1342 1343 #if 0 1344 { 1345 unsigned int i; 1346 1347 DRM_INFO("%s: new layout ", __func__); 1348 for (i = 0; i < num; i++) 1349 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y, 1350 rects[i].w, rects[i].h); 1351 DRM_INFO("\n"); 1352 } 1353 #endif 1354 1355 list_for_each_entry(con, &dev->mode_config.connector_list, head) { 1356 du = vmw_connector_to_du(con); 1357 if (num > du->unit) { 1358 du->pref_width = rects[du->unit].w; 1359 du->pref_height = rects[du->unit].h; 1360 du->pref_active = true; 1361 du->gui_x = rects[du->unit].x; 1362 du->gui_y = rects[du->unit].y; 1363 } else { 1364 du->pref_width = 800; 1365 du->pref_height = 600; 1366 du->pref_active = false; 1367 } 1368 con->status = vmw_du_connector_detect(con, true); 1369 } 1370 1371 mutex_unlock(&dev->mode_config.mutex); 1372 1373 return 0; 1374 } 1375 1376 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc, 1377 u16 *r, u16 *g, u16 *b, 1378 uint32_t start, uint32_t size) 1379 { 1380 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 1381 int i; 1382 1383 for (i = 0; i < size; i++) { 1384 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i, 1385 r[i], g[i], b[i]); 1386 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8); 1387 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8); 1388 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8); 1389 } 1390 } 1391 1392 int vmw_du_connector_dpms(struct drm_connector *connector, int mode) 1393 { 1394 return 0; 1395 } 1396 1397 enum drm_connector_status 1398 vmw_du_connector_detect(struct drm_connector *connector, bool force) 1399 { 1400 uint32_t num_displays; 1401 struct drm_device *dev = connector->dev; 1402 struct vmw_private *dev_priv = vmw_priv(dev); 1403 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1404 1405 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); 1406 1407 return ((vmw_connector_to_du(connector)->unit < num_displays && 1408 du->pref_active) ? 1409 connector_status_connected : connector_status_disconnected); 1410 } 1411 1412 static struct drm_display_mode vmw_kms_connector_builtin[] = { 1413 /* 640x480@60Hz */ 1414 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, 1415 752, 800, 0, 480, 489, 492, 525, 0, 1416 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1417 /* 800x600@60Hz */ 1418 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, 1419 968, 1056, 0, 600, 601, 605, 628, 0, 1420 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1421 /* 1024x768@60Hz */ 1422 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, 1423 1184, 1344, 0, 768, 771, 777, 806, 0, 1424 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1425 /* 1152x864@75Hz */ 1426 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, 1427 1344, 1600, 0, 864, 865, 868, 900, 0, 1428 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1429 /* 1280x768@60Hz */ 1430 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344, 1431 1472, 1664, 0, 768, 771, 778, 798, 0, 1432 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1433 /* 1280x800@60Hz */ 1434 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352, 1435 1480, 1680, 0, 800, 803, 809, 831, 0, 1436 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1437 /* 1280x960@60Hz */ 1438 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376, 1439 1488, 1800, 0, 960, 961, 964, 1000, 0, 1440 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1441 /* 1280x1024@60Hz */ 1442 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328, 1443 1440, 1688, 0, 1024, 1025, 1028, 1066, 0, 1444 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1445 /* 1360x768@60Hz */ 1446 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424, 1447 1536, 1792, 0, 768, 771, 777, 795, 0, 1448 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1449 /* 1440x1050@60Hz */ 1450 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488, 1451 1632, 1864, 0, 1050, 1053, 1057, 1089, 0, 1452 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1453 /* 1440x900@60Hz */ 1454 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520, 1455 1672, 1904, 0, 900, 903, 909, 934, 0, 1456 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1457 /* 1600x1200@60Hz */ 1458 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664, 1459 1856, 2160, 0, 1200, 1201, 1204, 1250, 0, 1460 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1461 /* 1680x1050@60Hz */ 1462 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784, 1463 1960, 2240, 0, 1050, 1053, 1059, 1089, 0, 1464 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1465 /* 1792x1344@60Hz */ 1466 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920, 1467 2120, 2448, 0, 1344, 1345, 1348, 1394, 0, 1468 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1469 /* 1853x1392@60Hz */ 1470 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952, 1471 2176, 2528, 0, 1392, 1393, 1396, 1439, 0, 1472 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1473 /* 1920x1200@60Hz */ 1474 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056, 1475 2256, 2592, 0, 1200, 1203, 1209, 1245, 0, 1476 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1477 /* 1920x1440@60Hz */ 1478 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048, 1479 2256, 2600, 0, 1440, 1441, 1444, 1500, 0, 1480 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1481 /* 2560x1600@60Hz */ 1482 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752, 1483 3032, 3504, 0, 1600, 1603, 1609, 1658, 0, 1484 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1485 /* Terminate */ 1486 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) }, 1487 }; 1488 1489 /** 1490 * vmw_guess_mode_timing - Provide fake timings for a 1491 * 60Hz vrefresh mode. 1492 * 1493 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay 1494 * members filled in. 1495 */ 1496 void vmw_guess_mode_timing(struct drm_display_mode *mode) 1497 { 1498 mode->hsync_start = mode->hdisplay + 50; 1499 mode->hsync_end = mode->hsync_start + 50; 1500 mode->htotal = mode->hsync_end + 50; 1501 1502 mode->vsync_start = mode->vdisplay + 50; 1503 mode->vsync_end = mode->vsync_start + 50; 1504 mode->vtotal = mode->vsync_end + 50; 1505 1506 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6; 1507 mode->vrefresh = drm_mode_vrefresh(mode); 1508 } 1509 1510 1511 int vmw_du_connector_fill_modes(struct drm_connector *connector, 1512 uint32_t max_width, uint32_t max_height) 1513 { 1514 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1515 struct drm_device *dev = connector->dev; 1516 struct vmw_private *dev_priv = vmw_priv(dev); 1517 struct drm_display_mode *mode = NULL; 1518 struct drm_display_mode *bmode; 1519 struct drm_display_mode prefmode = { DRM_MODE("preferred", 1520 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, 1521 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1522 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) 1523 }; 1524 int i; 1525 u32 assumed_bpp = 2; 1526 1527 /* 1528 * If using screen objects, then assume 32-bpp because that's what the 1529 * SVGA device is assuming 1530 */ 1531 if (dev_priv->active_display_unit == vmw_du_screen_object) 1532 assumed_bpp = 4; 1533 1534 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1535 max_width = min(max_width, dev_priv->stdu_max_width); 1536 max_height = min(max_height, dev_priv->stdu_max_height); 1537 } 1538 1539 /* Add preferred mode */ 1540 mode = drm_mode_duplicate(dev, &prefmode); 1541 if (!mode) 1542 return 0; 1543 mode->hdisplay = du->pref_width; 1544 mode->vdisplay = du->pref_height; 1545 vmw_guess_mode_timing(mode); 1546 1547 if (vmw_kms_validate_mode_vram(dev_priv, 1548 mode->hdisplay * assumed_bpp, 1549 mode->vdisplay)) { 1550 drm_mode_probed_add(connector, mode); 1551 } else { 1552 drm_mode_destroy(dev, mode); 1553 mode = NULL; 1554 } 1555 1556 if (du->pref_mode) { 1557 list_del_init(&du->pref_mode->head); 1558 drm_mode_destroy(dev, du->pref_mode); 1559 } 1560 1561 /* mode might be null here, this is intended */ 1562 du->pref_mode = mode; 1563 1564 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) { 1565 bmode = &vmw_kms_connector_builtin[i]; 1566 if (bmode->hdisplay > max_width || 1567 bmode->vdisplay > max_height) 1568 continue; 1569 1570 if (!vmw_kms_validate_mode_vram(dev_priv, 1571 bmode->hdisplay * assumed_bpp, 1572 bmode->vdisplay)) 1573 continue; 1574 1575 mode = drm_mode_duplicate(dev, bmode); 1576 if (!mode) 1577 return 0; 1578 mode->vrefresh = drm_mode_vrefresh(mode); 1579 1580 drm_mode_probed_add(connector, mode); 1581 } 1582 1583 drm_mode_connector_list_update(connector); 1584 /* Move the prefered mode first, help apps pick the right mode. */ 1585 drm_mode_sort(&connector->modes); 1586 1587 return 1; 1588 } 1589 1590 int vmw_du_connector_set_property(struct drm_connector *connector, 1591 struct drm_property *property, 1592 uint64_t val) 1593 { 1594 return 0; 1595 } 1596 1597 1598 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 1599 struct drm_file *file_priv) 1600 { 1601 struct vmw_private *dev_priv = vmw_priv(dev); 1602 struct drm_vmw_update_layout_arg *arg = 1603 (struct drm_vmw_update_layout_arg *)data; 1604 void __user *user_rects; 1605 struct drm_vmw_rect *rects; 1606 unsigned rects_size; 1607 int ret; 1608 int i; 1609 u64 total_pixels = 0; 1610 struct drm_mode_config *mode_config = &dev->mode_config; 1611 struct drm_vmw_rect bounding_box = {0}; 1612 1613 if (!arg->num_outputs) { 1614 struct drm_vmw_rect def_rect = {0, 0, 800, 600}; 1615 vmw_du_update_layout(dev_priv, 1, &def_rect); 1616 return 0; 1617 } 1618 1619 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); 1620 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), 1621 GFP_KERNEL); 1622 if (unlikely(!rects)) 1623 return -ENOMEM; 1624 1625 user_rects = (void __user *)(unsigned long)arg->rects; 1626 ret = copy_from_user(rects, user_rects, rects_size); 1627 if (unlikely(ret != 0)) { 1628 DRM_ERROR("Failed to get rects.\n"); 1629 ret = -EFAULT; 1630 goto out_free; 1631 } 1632 1633 for (i = 0; i < arg->num_outputs; ++i) { 1634 if (rects[i].x < 0 || 1635 rects[i].y < 0 || 1636 rects[i].x + rects[i].w > mode_config->max_width || 1637 rects[i].y + rects[i].h > mode_config->max_height) { 1638 DRM_ERROR("Invalid GUI layout.\n"); 1639 ret = -EINVAL; 1640 goto out_free; 1641 } 1642 1643 /* 1644 * bounding_box.w and bunding_box.h are used as 1645 * lower-right coordinates 1646 */ 1647 if (rects[i].x + rects[i].w > bounding_box.w) 1648 bounding_box.w = rects[i].x + rects[i].w; 1649 1650 if (rects[i].y + rects[i].h > bounding_box.h) 1651 bounding_box.h = rects[i].y + rects[i].h; 1652 1653 total_pixels += (u64) rects[i].w * (u64) rects[i].h; 1654 } 1655 1656 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1657 /* 1658 * For Screen Targets, the limits for a toplogy are: 1659 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem 1660 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem 1661 */ 1662 u64 bb_mem = bounding_box.w * bounding_box.h * 4; 1663 u64 pixel_mem = total_pixels * 4; 1664 1665 if (bb_mem > dev_priv->prim_bb_mem) { 1666 DRM_ERROR("Topology is beyond supported limits.\n"); 1667 ret = -EINVAL; 1668 goto out_free; 1669 } 1670 1671 if (pixel_mem > dev_priv->prim_bb_mem) { 1672 DRM_ERROR("Combined output size too large\n"); 1673 ret = -EINVAL; 1674 goto out_free; 1675 } 1676 } 1677 1678 vmw_du_update_layout(dev_priv, arg->num_outputs, rects); 1679 1680 out_free: 1681 kfree(rects); 1682 return ret; 1683 } 1684 1685 /** 1686 * vmw_kms_helper_dirty - Helper to build commands and perform actions based 1687 * on a set of cliprects and a set of display units. 1688 * 1689 * @dev_priv: Pointer to a device private structure. 1690 * @framebuffer: Pointer to the framebuffer on which to perform the actions. 1691 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL. 1692 * Cliprects are given in framebuffer coordinates. 1693 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must 1694 * be NULL. Cliprects are given in source coordinates. 1695 * @dest_x: X coordinate offset for the crtc / destination clip rects. 1696 * @dest_y: Y coordinate offset for the crtc / destination clip rects. 1697 * @num_clips: Number of cliprects in the @clips or @vclips array. 1698 * @increment: Integer with which to increment the clip counter when looping. 1699 * Used to skip a predetermined number of clip rects. 1700 * @dirty: Closure structure. See the description of struct vmw_kms_dirty. 1701 */ 1702 int vmw_kms_helper_dirty(struct vmw_private *dev_priv, 1703 struct vmw_framebuffer *framebuffer, 1704 const struct drm_clip_rect *clips, 1705 const struct drm_vmw_rect *vclips, 1706 s32 dest_x, s32 dest_y, 1707 int num_clips, 1708 int increment, 1709 struct vmw_kms_dirty *dirty) 1710 { 1711 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; 1712 struct drm_crtc *crtc; 1713 u32 num_units = 0; 1714 u32 i, k; 1715 1716 dirty->dev_priv = dev_priv; 1717 1718 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { 1719 if (crtc->primary->fb != &framebuffer->base) 1720 continue; 1721 units[num_units++] = vmw_crtc_to_du(crtc); 1722 } 1723 1724 for (k = 0; k < num_units; k++) { 1725 struct vmw_display_unit *unit = units[k]; 1726 s32 crtc_x = unit->crtc.x; 1727 s32 crtc_y = unit->crtc.y; 1728 s32 crtc_width = unit->crtc.mode.hdisplay; 1729 s32 crtc_height = unit->crtc.mode.vdisplay; 1730 const struct drm_clip_rect *clips_ptr = clips; 1731 const struct drm_vmw_rect *vclips_ptr = vclips; 1732 1733 dirty->unit = unit; 1734 if (dirty->fifo_reserve_size > 0) { 1735 dirty->cmd = vmw_fifo_reserve(dev_priv, 1736 dirty->fifo_reserve_size); 1737 if (!dirty->cmd) { 1738 DRM_ERROR("Couldn't reserve fifo space " 1739 "for dirty blits.\n"); 1740 return -ENOMEM; 1741 } 1742 memset(dirty->cmd, 0, dirty->fifo_reserve_size); 1743 } 1744 dirty->num_hits = 0; 1745 for (i = 0; i < num_clips; i++, clips_ptr += increment, 1746 vclips_ptr += increment) { 1747 s32 clip_left; 1748 s32 clip_top; 1749 1750 /* 1751 * Select clip array type. Note that integer type 1752 * in @clips is unsigned short, whereas in @vclips 1753 * it's 32-bit. 1754 */ 1755 if (clips) { 1756 dirty->fb_x = (s32) clips_ptr->x1; 1757 dirty->fb_y = (s32) clips_ptr->y1; 1758 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x - 1759 crtc_x; 1760 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y - 1761 crtc_y; 1762 } else { 1763 dirty->fb_x = vclips_ptr->x; 1764 dirty->fb_y = vclips_ptr->y; 1765 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w + 1766 dest_x - crtc_x; 1767 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h + 1768 dest_y - crtc_y; 1769 } 1770 1771 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x; 1772 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y; 1773 1774 /* Skip this clip if it's outside the crtc region */ 1775 if (dirty->unit_x1 >= crtc_width || 1776 dirty->unit_y1 >= crtc_height || 1777 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0) 1778 continue; 1779 1780 /* Clip right and bottom to crtc limits */ 1781 dirty->unit_x2 = min_t(s32, dirty->unit_x2, 1782 crtc_width); 1783 dirty->unit_y2 = min_t(s32, dirty->unit_y2, 1784 crtc_height); 1785 1786 /* Clip left and top to crtc limits */ 1787 clip_left = min_t(s32, dirty->unit_x1, 0); 1788 clip_top = min_t(s32, dirty->unit_y1, 0); 1789 dirty->unit_x1 -= clip_left; 1790 dirty->unit_y1 -= clip_top; 1791 dirty->fb_x -= clip_left; 1792 dirty->fb_y -= clip_top; 1793 1794 dirty->clip(dirty); 1795 } 1796 1797 dirty->fifo_commit(dirty); 1798 } 1799 1800 return 0; 1801 } 1802 1803 /** 1804 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before 1805 * command submission. 1806 * 1807 * @dev_priv. Pointer to a device private structure. 1808 * @buf: The buffer object 1809 * @interruptible: Whether to perform waits as interruptible. 1810 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false, 1811 * The buffer will be validated as a GMR. Already pinned buffers will not be 1812 * validated. 1813 * 1814 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if 1815 * interrupted by a signal. 1816 */ 1817 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv, 1818 struct vmw_dma_buffer *buf, 1819 bool interruptible, 1820 bool validate_as_mob) 1821 { 1822 struct ttm_buffer_object *bo = &buf->base; 1823 int ret; 1824 1825 ttm_bo_reserve(bo, false, false, interruptible, NULL); 1826 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible, 1827 validate_as_mob); 1828 if (ret) 1829 ttm_bo_unreserve(bo); 1830 1831 return ret; 1832 } 1833 1834 /** 1835 * vmw_kms_helper_buffer_revert - Undo the actions of 1836 * vmw_kms_helper_buffer_prepare. 1837 * 1838 * @res: Pointer to the buffer object. 1839 * 1840 * Helper to be used if an error forces the caller to undo the actions of 1841 * vmw_kms_helper_buffer_prepare. 1842 */ 1843 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf) 1844 { 1845 if (buf) 1846 ttm_bo_unreserve(&buf->base); 1847 } 1848 1849 /** 1850 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after 1851 * kms command submission. 1852 * 1853 * @dev_priv: Pointer to a device private structure. 1854 * @file_priv: Pointer to a struct drm_file representing the caller's 1855 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely 1856 * if non-NULL, @user_fence_rep must be non-NULL. 1857 * @buf: The buffer object. 1858 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1859 * ref-counted fence pointer is returned here. 1860 * @user_fence_rep: Optional pointer to a user-space provided struct 1861 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the 1862 * function copies fence data to user-space in a fail-safe manner. 1863 */ 1864 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv, 1865 struct drm_file *file_priv, 1866 struct vmw_dma_buffer *buf, 1867 struct vmw_fence_obj **out_fence, 1868 struct drm_vmw_fence_rep __user * 1869 user_fence_rep) 1870 { 1871 struct vmw_fence_obj *fence; 1872 uint32_t handle; 1873 int ret; 1874 1875 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence, 1876 file_priv ? &handle : NULL); 1877 if (buf) 1878 vmw_fence_single_bo(&buf->base, fence); 1879 if (file_priv) 1880 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), 1881 ret, user_fence_rep, fence, 1882 handle); 1883 if (out_fence) 1884 *out_fence = fence; 1885 else 1886 vmw_fence_obj_unreference(&fence); 1887 1888 vmw_kms_helper_buffer_revert(buf); 1889 } 1890 1891 1892 /** 1893 * vmw_kms_helper_resource_revert - Undo the actions of 1894 * vmw_kms_helper_resource_prepare. 1895 * 1896 * @res: Pointer to the resource. Typically a surface. 1897 * 1898 * Helper to be used if an error forces the caller to undo the actions of 1899 * vmw_kms_helper_resource_prepare. 1900 */ 1901 void vmw_kms_helper_resource_revert(struct vmw_resource *res) 1902 { 1903 vmw_kms_helper_buffer_revert(res->backup); 1904 vmw_resource_unreserve(res, false, NULL, 0); 1905 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1906 } 1907 1908 /** 1909 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before 1910 * command submission. 1911 * 1912 * @res: Pointer to the resource. Typically a surface. 1913 * @interruptible: Whether to perform waits as interruptible. 1914 * 1915 * Reserves and validates also the backup buffer if a guest-backed resource. 1916 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1917 * interrupted by a signal. 1918 */ 1919 int vmw_kms_helper_resource_prepare(struct vmw_resource *res, 1920 bool interruptible) 1921 { 1922 int ret = 0; 1923 1924 if (interruptible) 1925 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex); 1926 else 1927 mutex_lock(&res->dev_priv->cmdbuf_mutex); 1928 1929 if (unlikely(ret != 0)) 1930 return -ERESTARTSYS; 1931 1932 ret = vmw_resource_reserve(res, interruptible, false); 1933 if (ret) 1934 goto out_unlock; 1935 1936 if (res->backup) { 1937 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup, 1938 interruptible, 1939 res->dev_priv->has_mob); 1940 if (ret) 1941 goto out_unreserve; 1942 } 1943 ret = vmw_resource_validate(res); 1944 if (ret) 1945 goto out_revert; 1946 return 0; 1947 1948 out_revert: 1949 vmw_kms_helper_buffer_revert(res->backup); 1950 out_unreserve: 1951 vmw_resource_unreserve(res, false, NULL, 0); 1952 out_unlock: 1953 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1954 return ret; 1955 } 1956 1957 /** 1958 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after 1959 * kms command submission. 1960 * 1961 * @res: Pointer to the resource. Typically a surface. 1962 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1963 * ref-counted fence pointer is returned here. 1964 */ 1965 void vmw_kms_helper_resource_finish(struct vmw_resource *res, 1966 struct vmw_fence_obj **out_fence) 1967 { 1968 if (res->backup || out_fence) 1969 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup, 1970 out_fence, NULL); 1971 1972 vmw_resource_unreserve(res, false, NULL, 0); 1973 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1974 } 1975 1976 /** 1977 * vmw_kms_update_proxy - Helper function to update a proxy surface from 1978 * its backing MOB. 1979 * 1980 * @res: Pointer to the surface resource 1981 * @clips: Clip rects in framebuffer (surface) space. 1982 * @num_clips: Number of clips in @clips. 1983 * @increment: Integer with which to increment the clip counter when looping. 1984 * Used to skip a predetermined number of clip rects. 1985 * 1986 * This function makes sure the proxy surface is updated from its backing MOB 1987 * using the region given by @clips. The surface resource @res and its backing 1988 * MOB needs to be reserved and validated on call. 1989 */ 1990 int vmw_kms_update_proxy(struct vmw_resource *res, 1991 const struct drm_clip_rect *clips, 1992 unsigned num_clips, 1993 int increment) 1994 { 1995 struct vmw_private *dev_priv = res->dev_priv; 1996 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size; 1997 struct { 1998 SVGA3dCmdHeader header; 1999 SVGA3dCmdUpdateGBImage body; 2000 } *cmd; 2001 SVGA3dBox *box; 2002 size_t copy_size = 0; 2003 int i; 2004 2005 if (!clips) 2006 return 0; 2007 2008 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips); 2009 if (!cmd) { 2010 DRM_ERROR("Couldn't reserve fifo space for proxy surface " 2011 "update.\n"); 2012 return -ENOMEM; 2013 } 2014 2015 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) { 2016 box = &cmd->body.box; 2017 2018 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; 2019 cmd->header.size = sizeof(cmd->body); 2020 cmd->body.image.sid = res->id; 2021 cmd->body.image.face = 0; 2022 cmd->body.image.mipmap = 0; 2023 2024 if (clips->x1 > size->width || clips->x2 > size->width || 2025 clips->y1 > size->height || clips->y2 > size->height) { 2026 DRM_ERROR("Invalid clips outsize of framebuffer.\n"); 2027 return -EINVAL; 2028 } 2029 2030 box->x = clips->x1; 2031 box->y = clips->y1; 2032 box->z = 0; 2033 box->w = clips->x2 - clips->x1; 2034 box->h = clips->y2 - clips->y1; 2035 box->d = 1; 2036 2037 copy_size += sizeof(*cmd); 2038 } 2039 2040 vmw_fifo_commit(dev_priv, copy_size); 2041 2042 return 0; 2043 } 2044 2045 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv, 2046 unsigned unit, 2047 u32 max_width, 2048 u32 max_height, 2049 struct drm_connector **p_con, 2050 struct drm_crtc **p_crtc, 2051 struct drm_display_mode **p_mode) 2052 { 2053 struct drm_connector *con; 2054 struct vmw_display_unit *du; 2055 struct drm_display_mode *mode; 2056 int i = 0; 2057 2058 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list, 2059 head) { 2060 if (i == unit) 2061 break; 2062 2063 ++i; 2064 } 2065 2066 if (i != unit) { 2067 DRM_ERROR("Could not find initial display unit.\n"); 2068 return -EINVAL; 2069 } 2070 2071 if (list_empty(&con->modes)) 2072 (void) vmw_du_connector_fill_modes(con, max_width, max_height); 2073 2074 if (list_empty(&con->modes)) { 2075 DRM_ERROR("Could not find initial display mode.\n"); 2076 return -EINVAL; 2077 } 2078 2079 du = vmw_connector_to_du(con); 2080 *p_con = con; 2081 *p_crtc = &du->crtc; 2082 2083 list_for_each_entry(mode, &con->modes, head) { 2084 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2085 break; 2086 } 2087 2088 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2089 *p_mode = mode; 2090 else { 2091 WARN_ONCE(true, "Could not find initial preferred mode.\n"); 2092 *p_mode = list_first_entry(&con->modes, 2093 struct drm_display_mode, 2094 head); 2095 } 2096 2097 return 0; 2098 } 2099