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 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 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 int ret; 767 768 switch (mode_cmd->depth) { 769 case 32: 770 case 24: 771 format = SVGA3D_X8R8G8B8; 772 break; 773 774 case 16: 775 case 15: 776 format = SVGA3D_R5G6B5; 777 break; 778 779 case 8: 780 format = SVGA3D_P8; 781 break; 782 783 default: 784 DRM_ERROR("Invalid framebuffer format %d\n", mode_cmd->depth); 785 return -EINVAL; 786 } 787 788 content_base_size.width = mode_cmd->width; 789 content_base_size.height = mode_cmd->height; 790 content_base_size.depth = 1; 791 792 ret = vmw_surface_gb_priv_define(dev, 793 0, /* kernel visible only */ 794 0, /* flags */ 795 format, 796 true, /* can be a scanout buffer */ 797 1, /* num of mip levels */ 798 0, 799 0, 800 content_base_size, 801 srf_out); 802 if (ret) { 803 DRM_ERROR("Failed to allocate proxy content buffer\n"); 804 return ret; 805 } 806 807 res = &(*srf_out)->res; 808 809 /* Reserve and switch the backing mob. */ 810 mutex_lock(&res->dev_priv->cmdbuf_mutex); 811 (void) vmw_resource_reserve(res, false, true); 812 vmw_dmabuf_unreference(&res->backup); 813 res->backup = vmw_dmabuf_reference(dmabuf_mob); 814 res->backup_offset = 0; 815 vmw_resource_unreserve(res, false, NULL, 0); 816 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 817 818 return 0; 819 } 820 821 822 823 static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv, 824 struct vmw_dma_buffer *dmabuf, 825 struct vmw_framebuffer **out, 826 const struct drm_mode_fb_cmd 827 *mode_cmd) 828 829 { 830 struct drm_device *dev = dev_priv->dev; 831 struct vmw_framebuffer_dmabuf *vfbd; 832 unsigned int requested_size; 833 int ret; 834 835 requested_size = mode_cmd->height * mode_cmd->pitch; 836 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) { 837 DRM_ERROR("Screen buffer object size is too small " 838 "for requested mode.\n"); 839 return -EINVAL; 840 } 841 842 /* Limited framebuffer color depth support for screen objects */ 843 if (dev_priv->active_display_unit == vmw_du_screen_object) { 844 switch (mode_cmd->depth) { 845 case 32: 846 case 24: 847 /* Only support 32 bpp for 32 and 24 depth fbs */ 848 if (mode_cmd->bpp == 32) 849 break; 850 851 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 852 mode_cmd->depth, mode_cmd->bpp); 853 return -EINVAL; 854 case 16: 855 case 15: 856 /* Only support 16 bpp for 16 and 15 depth fbs */ 857 if (mode_cmd->bpp == 16) 858 break; 859 860 DRM_ERROR("Invalid color depth/bbp: %d %d\n", 861 mode_cmd->depth, mode_cmd->bpp); 862 return -EINVAL; 863 default: 864 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); 865 return -EINVAL; 866 } 867 } 868 869 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); 870 if (!vfbd) { 871 ret = -ENOMEM; 872 goto out_err1; 873 } 874 875 vfbd->base.base.bits_per_pixel = mode_cmd->bpp; 876 vfbd->base.base.pitches[0] = mode_cmd->pitch; 877 vfbd->base.base.depth = mode_cmd->depth; 878 vfbd->base.base.width = mode_cmd->width; 879 vfbd->base.base.height = mode_cmd->height; 880 vfbd->base.dmabuf = true; 881 vfbd->buffer = vmw_dmabuf_reference(dmabuf); 882 vfbd->base.user_handle = mode_cmd->handle; 883 *out = &vfbd->base; 884 885 ret = drm_framebuffer_init(dev, &vfbd->base.base, 886 &vmw_framebuffer_dmabuf_funcs); 887 if (ret) 888 goto out_err2; 889 890 return 0; 891 892 out_err2: 893 vmw_dmabuf_unreference(&dmabuf); 894 kfree(vfbd); 895 out_err1: 896 return ret; 897 } 898 899 /** 900 * vmw_kms_new_framebuffer - Create a new framebuffer. 901 * 902 * @dev_priv: Pointer to device private struct. 903 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around. 904 * Either @dmabuf or @surface must be NULL. 905 * @surface: Pointer to a surface to wrap the kms framebuffer around. 906 * Either @dmabuf or @surface must be NULL. 907 * @only_2d: No presents will occur to this dma buffer based framebuffer. This 908 * Helps the code to do some important optimizations. 909 * @mode_cmd: Frame-buffer metadata. 910 */ 911 struct vmw_framebuffer * 912 vmw_kms_new_framebuffer(struct vmw_private *dev_priv, 913 struct vmw_dma_buffer *dmabuf, 914 struct vmw_surface *surface, 915 bool only_2d, 916 const struct drm_mode_fb_cmd *mode_cmd) 917 { 918 struct vmw_framebuffer *vfb = NULL; 919 bool is_dmabuf_proxy = false; 920 int ret; 921 922 /* 923 * We cannot use the SurfaceDMA command in an non-accelerated VM, 924 * therefore, wrap the DMA buf in a surface so we can use the 925 * SurfaceCopy command. 926 */ 927 if (dmabuf && only_2d && 928 dev_priv->active_display_unit == vmw_du_screen_target) { 929 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd, 930 dmabuf, &surface); 931 if (ret) 932 return ERR_PTR(ret); 933 934 is_dmabuf_proxy = true; 935 } 936 937 /* Create the new framebuffer depending one what we have */ 938 if (surface) { 939 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb, 940 mode_cmd, 941 is_dmabuf_proxy); 942 943 /* 944 * vmw_create_dmabuf_proxy() adds a reference that is no longer 945 * needed 946 */ 947 if (is_dmabuf_proxy) 948 vmw_surface_unreference(&surface); 949 } else if (dmabuf) { 950 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb, 951 mode_cmd); 952 } else { 953 BUG(); 954 } 955 956 if (ret) 957 return ERR_PTR(ret); 958 959 vfb->pin = vmw_framebuffer_pin; 960 vfb->unpin = vmw_framebuffer_unpin; 961 962 return vfb; 963 } 964 965 /* 966 * Generic Kernel modesetting functions 967 */ 968 969 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, 970 struct drm_file *file_priv, 971 struct drm_mode_fb_cmd2 *mode_cmd2) 972 { 973 struct vmw_private *dev_priv = vmw_priv(dev); 974 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 975 struct vmw_framebuffer *vfb = NULL; 976 struct vmw_surface *surface = NULL; 977 struct vmw_dma_buffer *bo = NULL; 978 struct ttm_base_object *user_obj; 979 struct drm_mode_fb_cmd mode_cmd; 980 int ret; 981 982 mode_cmd.width = mode_cmd2->width; 983 mode_cmd.height = mode_cmd2->height; 984 mode_cmd.pitch = mode_cmd2->pitches[0]; 985 mode_cmd.handle = mode_cmd2->handles[0]; 986 drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth, 987 &mode_cmd.bpp); 988 989 /** 990 * This code should be conditioned on Screen Objects not being used. 991 * If screen objects are used, we can allocate a GMR to hold the 992 * requested framebuffer. 993 */ 994 995 if (!vmw_kms_validate_mode_vram(dev_priv, 996 mode_cmd.pitch, 997 mode_cmd.height)) { 998 DRM_ERROR("Requested mode exceed bounding box limit.\n"); 999 return ERR_PTR(-ENOMEM); 1000 } 1001 1002 /* 1003 * Take a reference on the user object of the resource 1004 * backing the kms fb. This ensures that user-space handle 1005 * lookups on that resource will always work as long as 1006 * it's registered with a kms framebuffer. This is important, 1007 * since vmw_execbuf_process identifies resources in the 1008 * command stream using user-space handles. 1009 */ 1010 1011 user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle); 1012 if (unlikely(user_obj == NULL)) { 1013 DRM_ERROR("Could not locate requested kms frame buffer.\n"); 1014 return ERR_PTR(-ENOENT); 1015 } 1016 1017 /** 1018 * End conditioned code. 1019 */ 1020 1021 /* returns either a dmabuf or surface */ 1022 ret = vmw_user_lookup_handle(dev_priv, tfile, 1023 mode_cmd.handle, 1024 &surface, &bo); 1025 if (ret) 1026 goto err_out; 1027 1028 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface, 1029 !(dev_priv->capabilities & SVGA_CAP_3D), 1030 &mode_cmd); 1031 if (IS_ERR(vfb)) { 1032 ret = PTR_ERR(vfb); 1033 goto err_out; 1034 } 1035 1036 err_out: 1037 /* vmw_user_lookup_handle takes one ref so does new_fb */ 1038 if (bo) 1039 vmw_dmabuf_unreference(&bo); 1040 if (surface) 1041 vmw_surface_unreference(&surface); 1042 1043 if (ret) { 1044 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); 1045 ttm_base_object_unref(&user_obj); 1046 return ERR_PTR(ret); 1047 } else 1048 vfb->user_obj = user_obj; 1049 1050 return &vfb->base; 1051 } 1052 1053 static const struct drm_mode_config_funcs vmw_kms_funcs = { 1054 .fb_create = vmw_kms_fb_create, 1055 }; 1056 1057 static int vmw_kms_generic_present(struct vmw_private *dev_priv, 1058 struct drm_file *file_priv, 1059 struct vmw_framebuffer *vfb, 1060 struct vmw_surface *surface, 1061 uint32_t sid, 1062 int32_t destX, int32_t destY, 1063 struct drm_vmw_rect *clips, 1064 uint32_t num_clips) 1065 { 1066 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips, 1067 &surface->res, destX, destY, 1068 num_clips, 1, NULL); 1069 } 1070 1071 1072 int vmw_kms_present(struct vmw_private *dev_priv, 1073 struct drm_file *file_priv, 1074 struct vmw_framebuffer *vfb, 1075 struct vmw_surface *surface, 1076 uint32_t sid, 1077 int32_t destX, int32_t destY, 1078 struct drm_vmw_rect *clips, 1079 uint32_t num_clips) 1080 { 1081 int ret; 1082 1083 switch (dev_priv->active_display_unit) { 1084 case vmw_du_screen_target: 1085 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips, 1086 &surface->res, destX, destY, 1087 num_clips, 1, NULL); 1088 break; 1089 case vmw_du_screen_object: 1090 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface, 1091 sid, destX, destY, clips, 1092 num_clips); 1093 break; 1094 default: 1095 WARN_ONCE(true, 1096 "Present called with invalid display system.\n"); 1097 ret = -ENOSYS; 1098 break; 1099 } 1100 if (ret) 1101 return ret; 1102 1103 vmw_fifo_flush(dev_priv, false); 1104 1105 return 0; 1106 } 1107 1108 int vmw_kms_init(struct vmw_private *dev_priv) 1109 { 1110 struct drm_device *dev = dev_priv->dev; 1111 int ret; 1112 1113 drm_mode_config_init(dev); 1114 dev->mode_config.funcs = &vmw_kms_funcs; 1115 dev->mode_config.min_width = 1; 1116 dev->mode_config.min_height = 1; 1117 dev->mode_config.max_width = dev_priv->texture_max_width; 1118 dev->mode_config.max_height = dev_priv->texture_max_height; 1119 1120 ret = vmw_kms_stdu_init_display(dev_priv); 1121 if (ret) { 1122 ret = vmw_kms_sou_init_display(dev_priv); 1123 if (ret) /* Fallback */ 1124 ret = vmw_kms_ldu_init_display(dev_priv); 1125 } 1126 1127 return ret; 1128 } 1129 1130 int vmw_kms_close(struct vmw_private *dev_priv) 1131 { 1132 int ret; 1133 1134 /* 1135 * Docs says we should take the lock before calling this function 1136 * but since it destroys encoders and our destructor calls 1137 * drm_encoder_cleanup which takes the lock we deadlock. 1138 */ 1139 drm_mode_config_cleanup(dev_priv->dev); 1140 if (dev_priv->active_display_unit == vmw_du_screen_object) 1141 ret = vmw_kms_sou_close_display(dev_priv); 1142 else if (dev_priv->active_display_unit == vmw_du_screen_target) 1143 ret = vmw_kms_stdu_close_display(dev_priv); 1144 else 1145 ret = vmw_kms_ldu_close_display(dev_priv); 1146 1147 return ret; 1148 } 1149 1150 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, 1151 struct drm_file *file_priv) 1152 { 1153 struct drm_vmw_cursor_bypass_arg *arg = data; 1154 struct vmw_display_unit *du; 1155 struct drm_crtc *crtc; 1156 int ret = 0; 1157 1158 1159 mutex_lock(&dev->mode_config.mutex); 1160 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) { 1161 1162 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 1163 du = vmw_crtc_to_du(crtc); 1164 du->hotspot_x = arg->xhot; 1165 du->hotspot_y = arg->yhot; 1166 } 1167 1168 mutex_unlock(&dev->mode_config.mutex); 1169 return 0; 1170 } 1171 1172 crtc = drm_crtc_find(dev, arg->crtc_id); 1173 if (!crtc) { 1174 ret = -ENOENT; 1175 goto out; 1176 } 1177 1178 du = vmw_crtc_to_du(crtc); 1179 1180 du->hotspot_x = arg->xhot; 1181 du->hotspot_y = arg->yhot; 1182 1183 out: 1184 mutex_unlock(&dev->mode_config.mutex); 1185 1186 return ret; 1187 } 1188 1189 int vmw_kms_write_svga(struct vmw_private *vmw_priv, 1190 unsigned width, unsigned height, unsigned pitch, 1191 unsigned bpp, unsigned depth) 1192 { 1193 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1194 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch); 1195 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1196 vmw_mmio_write(pitch, vmw_priv->mmio_virt + 1197 SVGA_FIFO_PITCHLOCK); 1198 vmw_write(vmw_priv, SVGA_REG_WIDTH, width); 1199 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height); 1200 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp); 1201 1202 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) { 1203 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n", 1204 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH)); 1205 return -EINVAL; 1206 } 1207 1208 return 0; 1209 } 1210 1211 int vmw_kms_save_vga(struct vmw_private *vmw_priv) 1212 { 1213 struct vmw_vga_topology_state *save; 1214 uint32_t i; 1215 1216 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH); 1217 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT); 1218 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL); 1219 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1220 vmw_priv->vga_pitchlock = 1221 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK); 1222 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1223 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt + 1224 SVGA_FIFO_PITCHLOCK); 1225 1226 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1227 return 0; 1228 1229 vmw_priv->num_displays = vmw_read(vmw_priv, 1230 SVGA_REG_NUM_GUEST_DISPLAYS); 1231 1232 if (vmw_priv->num_displays == 0) 1233 vmw_priv->num_displays = 1; 1234 1235 for (i = 0; i < vmw_priv->num_displays; ++i) { 1236 save = &vmw_priv->vga_save[i]; 1237 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1238 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY); 1239 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X); 1240 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y); 1241 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH); 1242 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT); 1243 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1244 if (i == 0 && vmw_priv->num_displays == 1 && 1245 save->width == 0 && save->height == 0) { 1246 1247 /* 1248 * It should be fairly safe to assume that these 1249 * values are uninitialized. 1250 */ 1251 1252 save->width = vmw_priv->vga_width - save->pos_x; 1253 save->height = vmw_priv->vga_height - save->pos_y; 1254 } 1255 } 1256 1257 return 0; 1258 } 1259 1260 int vmw_kms_restore_vga(struct vmw_private *vmw_priv) 1261 { 1262 struct vmw_vga_topology_state *save; 1263 uint32_t i; 1264 1265 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width); 1266 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height); 1267 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp); 1268 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) 1269 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, 1270 vmw_priv->vga_pitchlock); 1271 else if (vmw_fifo_have_pitchlock(vmw_priv)) 1272 vmw_mmio_write(vmw_priv->vga_pitchlock, 1273 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); 1274 1275 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) 1276 return 0; 1277 1278 for (i = 0; i < vmw_priv->num_displays; ++i) { 1279 save = &vmw_priv->vga_save[i]; 1280 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); 1281 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary); 1282 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x); 1283 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y); 1284 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width); 1285 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height); 1286 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); 1287 } 1288 1289 return 0; 1290 } 1291 1292 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, 1293 uint32_t pitch, 1294 uint32_t height) 1295 { 1296 return ((u64) pitch * (u64) height) < (u64) 1297 ((dev_priv->active_display_unit == vmw_du_screen_target) ? 1298 dev_priv->prim_bb_mem : dev_priv->vram_size); 1299 } 1300 1301 1302 /** 1303 * Function called by DRM code called with vbl_lock held. 1304 */ 1305 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe) 1306 { 1307 return 0; 1308 } 1309 1310 /** 1311 * Function called by DRM code called with vbl_lock held. 1312 */ 1313 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe) 1314 { 1315 return -ENOSYS; 1316 } 1317 1318 /** 1319 * Function called by DRM code called with vbl_lock held. 1320 */ 1321 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe) 1322 { 1323 } 1324 1325 1326 /* 1327 * Small shared kms functions. 1328 */ 1329 1330 static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num, 1331 struct drm_vmw_rect *rects) 1332 { 1333 struct drm_device *dev = dev_priv->dev; 1334 struct vmw_display_unit *du; 1335 struct drm_connector *con; 1336 1337 mutex_lock(&dev->mode_config.mutex); 1338 1339 #if 0 1340 { 1341 unsigned int i; 1342 1343 DRM_INFO("%s: new layout ", __func__); 1344 for (i = 0; i < num; i++) 1345 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y, 1346 rects[i].w, rects[i].h); 1347 DRM_INFO("\n"); 1348 } 1349 #endif 1350 1351 list_for_each_entry(con, &dev->mode_config.connector_list, head) { 1352 du = vmw_connector_to_du(con); 1353 if (num > du->unit) { 1354 du->pref_width = rects[du->unit].w; 1355 du->pref_height = rects[du->unit].h; 1356 du->pref_active = true; 1357 du->gui_x = rects[du->unit].x; 1358 du->gui_y = rects[du->unit].y; 1359 } else { 1360 du->pref_width = 800; 1361 du->pref_height = 600; 1362 du->pref_active = false; 1363 } 1364 con->status = vmw_du_connector_detect(con, true); 1365 } 1366 1367 mutex_unlock(&dev->mode_config.mutex); 1368 1369 return 0; 1370 } 1371 1372 void vmw_du_crtc_save(struct drm_crtc *crtc) 1373 { 1374 } 1375 1376 void vmw_du_crtc_restore(struct drm_crtc *crtc) 1377 { 1378 } 1379 1380 void vmw_du_crtc_gamma_set(struct drm_crtc *crtc, 1381 u16 *r, u16 *g, u16 *b, 1382 uint32_t start, uint32_t size) 1383 { 1384 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 1385 int i; 1386 1387 for (i = 0; i < size; i++) { 1388 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i, 1389 r[i], g[i], b[i]); 1390 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8); 1391 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8); 1392 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8); 1393 } 1394 } 1395 1396 int vmw_du_connector_dpms(struct drm_connector *connector, int mode) 1397 { 1398 return 0; 1399 } 1400 1401 void vmw_du_connector_save(struct drm_connector *connector) 1402 { 1403 } 1404 1405 void vmw_du_connector_restore(struct drm_connector *connector) 1406 { 1407 } 1408 1409 enum drm_connector_status 1410 vmw_du_connector_detect(struct drm_connector *connector, bool force) 1411 { 1412 uint32_t num_displays; 1413 struct drm_device *dev = connector->dev; 1414 struct vmw_private *dev_priv = vmw_priv(dev); 1415 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1416 1417 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); 1418 1419 return ((vmw_connector_to_du(connector)->unit < num_displays && 1420 du->pref_active) ? 1421 connector_status_connected : connector_status_disconnected); 1422 } 1423 1424 static struct drm_display_mode vmw_kms_connector_builtin[] = { 1425 /* 640x480@60Hz */ 1426 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, 1427 752, 800, 0, 480, 489, 492, 525, 0, 1428 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1429 /* 800x600@60Hz */ 1430 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, 1431 968, 1056, 0, 600, 601, 605, 628, 0, 1432 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1433 /* 1024x768@60Hz */ 1434 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, 1435 1184, 1344, 0, 768, 771, 777, 806, 0, 1436 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1437 /* 1152x864@75Hz */ 1438 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, 1439 1344, 1600, 0, 864, 865, 868, 900, 0, 1440 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1441 /* 1280x768@60Hz */ 1442 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344, 1443 1472, 1664, 0, 768, 771, 778, 798, 0, 1444 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1445 /* 1280x800@60Hz */ 1446 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352, 1447 1480, 1680, 0, 800, 803, 809, 831, 0, 1448 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, 1449 /* 1280x960@60Hz */ 1450 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376, 1451 1488, 1800, 0, 960, 961, 964, 1000, 0, 1452 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1453 /* 1280x1024@60Hz */ 1454 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328, 1455 1440, 1688, 0, 1024, 1025, 1028, 1066, 0, 1456 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1457 /* 1360x768@60Hz */ 1458 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424, 1459 1536, 1792, 0, 768, 771, 777, 795, 0, 1460 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1461 /* 1440x1050@60Hz */ 1462 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488, 1463 1632, 1864, 0, 1050, 1053, 1057, 1089, 0, 1464 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1465 /* 1440x900@60Hz */ 1466 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520, 1467 1672, 1904, 0, 900, 903, 909, 934, 0, 1468 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1469 /* 1600x1200@60Hz */ 1470 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664, 1471 1856, 2160, 0, 1200, 1201, 1204, 1250, 0, 1472 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1473 /* 1680x1050@60Hz */ 1474 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784, 1475 1960, 2240, 0, 1050, 1053, 1059, 1089, 0, 1476 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1477 /* 1792x1344@60Hz */ 1478 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920, 1479 2120, 2448, 0, 1344, 1345, 1348, 1394, 0, 1480 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1481 /* 1853x1392@60Hz */ 1482 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952, 1483 2176, 2528, 0, 1392, 1393, 1396, 1439, 0, 1484 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1485 /* 1920x1200@60Hz */ 1486 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056, 1487 2256, 2592, 0, 1200, 1203, 1209, 1245, 0, 1488 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1489 /* 1920x1440@60Hz */ 1490 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048, 1491 2256, 2600, 0, 1440, 1441, 1444, 1500, 0, 1492 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1493 /* 2560x1600@60Hz */ 1494 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752, 1495 3032, 3504, 0, 1600, 1603, 1609, 1658, 0, 1496 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, 1497 /* Terminate */ 1498 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) }, 1499 }; 1500 1501 /** 1502 * vmw_guess_mode_timing - Provide fake timings for a 1503 * 60Hz vrefresh mode. 1504 * 1505 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay 1506 * members filled in. 1507 */ 1508 void vmw_guess_mode_timing(struct drm_display_mode *mode) 1509 { 1510 mode->hsync_start = mode->hdisplay + 50; 1511 mode->hsync_end = mode->hsync_start + 50; 1512 mode->htotal = mode->hsync_end + 50; 1513 1514 mode->vsync_start = mode->vdisplay + 50; 1515 mode->vsync_end = mode->vsync_start + 50; 1516 mode->vtotal = mode->vsync_end + 50; 1517 1518 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6; 1519 mode->vrefresh = drm_mode_vrefresh(mode); 1520 } 1521 1522 1523 int vmw_du_connector_fill_modes(struct drm_connector *connector, 1524 uint32_t max_width, uint32_t max_height) 1525 { 1526 struct vmw_display_unit *du = vmw_connector_to_du(connector); 1527 struct drm_device *dev = connector->dev; 1528 struct vmw_private *dev_priv = vmw_priv(dev); 1529 struct drm_display_mode *mode = NULL; 1530 struct drm_display_mode *bmode; 1531 struct drm_display_mode prefmode = { DRM_MODE("preferred", 1532 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, 1533 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1534 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) 1535 }; 1536 int i; 1537 u32 assumed_bpp = 2; 1538 1539 /* 1540 * If using screen objects, then assume 32-bpp because that's what the 1541 * SVGA device is assuming 1542 */ 1543 if (dev_priv->active_display_unit == vmw_du_screen_object) 1544 assumed_bpp = 4; 1545 1546 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1547 max_width = min(max_width, dev_priv->stdu_max_width); 1548 max_height = min(max_height, dev_priv->stdu_max_height); 1549 } 1550 1551 /* Add preferred mode */ 1552 mode = drm_mode_duplicate(dev, &prefmode); 1553 if (!mode) 1554 return 0; 1555 mode->hdisplay = du->pref_width; 1556 mode->vdisplay = du->pref_height; 1557 vmw_guess_mode_timing(mode); 1558 1559 if (vmw_kms_validate_mode_vram(dev_priv, 1560 mode->hdisplay * assumed_bpp, 1561 mode->vdisplay)) { 1562 drm_mode_probed_add(connector, mode); 1563 } else { 1564 drm_mode_destroy(dev, mode); 1565 mode = NULL; 1566 } 1567 1568 if (du->pref_mode) { 1569 list_del_init(&du->pref_mode->head); 1570 drm_mode_destroy(dev, du->pref_mode); 1571 } 1572 1573 /* mode might be null here, this is intended */ 1574 du->pref_mode = mode; 1575 1576 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) { 1577 bmode = &vmw_kms_connector_builtin[i]; 1578 if (bmode->hdisplay > max_width || 1579 bmode->vdisplay > max_height) 1580 continue; 1581 1582 if (!vmw_kms_validate_mode_vram(dev_priv, 1583 bmode->hdisplay * assumed_bpp, 1584 bmode->vdisplay)) 1585 continue; 1586 1587 mode = drm_mode_duplicate(dev, bmode); 1588 if (!mode) 1589 return 0; 1590 mode->vrefresh = drm_mode_vrefresh(mode); 1591 1592 drm_mode_probed_add(connector, mode); 1593 } 1594 1595 drm_mode_connector_list_update(connector, true); 1596 /* Move the prefered mode first, help apps pick the right mode. */ 1597 drm_mode_sort(&connector->modes); 1598 1599 return 1; 1600 } 1601 1602 int vmw_du_connector_set_property(struct drm_connector *connector, 1603 struct drm_property *property, 1604 uint64_t val) 1605 { 1606 return 0; 1607 } 1608 1609 1610 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, 1611 struct drm_file *file_priv) 1612 { 1613 struct vmw_private *dev_priv = vmw_priv(dev); 1614 struct drm_vmw_update_layout_arg *arg = 1615 (struct drm_vmw_update_layout_arg *)data; 1616 void __user *user_rects; 1617 struct drm_vmw_rect *rects; 1618 unsigned rects_size; 1619 int ret; 1620 int i; 1621 u64 total_pixels = 0; 1622 struct drm_mode_config *mode_config = &dev->mode_config; 1623 struct drm_vmw_rect bounding_box = {0}; 1624 1625 if (!arg->num_outputs) { 1626 struct drm_vmw_rect def_rect = {0, 0, 800, 600}; 1627 vmw_du_update_layout(dev_priv, 1, &def_rect); 1628 return 0; 1629 } 1630 1631 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); 1632 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), 1633 GFP_KERNEL); 1634 if (unlikely(!rects)) 1635 return -ENOMEM; 1636 1637 user_rects = (void __user *)(unsigned long)arg->rects; 1638 ret = copy_from_user(rects, user_rects, rects_size); 1639 if (unlikely(ret != 0)) { 1640 DRM_ERROR("Failed to get rects.\n"); 1641 ret = -EFAULT; 1642 goto out_free; 1643 } 1644 1645 for (i = 0; i < arg->num_outputs; ++i) { 1646 if (rects[i].x < 0 || 1647 rects[i].y < 0 || 1648 rects[i].x + rects[i].w > mode_config->max_width || 1649 rects[i].y + rects[i].h > mode_config->max_height) { 1650 DRM_ERROR("Invalid GUI layout.\n"); 1651 ret = -EINVAL; 1652 goto out_free; 1653 } 1654 1655 /* 1656 * bounding_box.w and bunding_box.h are used as 1657 * lower-right coordinates 1658 */ 1659 if (rects[i].x + rects[i].w > bounding_box.w) 1660 bounding_box.w = rects[i].x + rects[i].w; 1661 1662 if (rects[i].y + rects[i].h > bounding_box.h) 1663 bounding_box.h = rects[i].y + rects[i].h; 1664 1665 total_pixels += (u64) rects[i].w * (u64) rects[i].h; 1666 } 1667 1668 if (dev_priv->active_display_unit == vmw_du_screen_target) { 1669 /* 1670 * For Screen Targets, the limits for a toplogy are: 1671 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem 1672 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem 1673 */ 1674 u64 bb_mem = bounding_box.w * bounding_box.h * 4; 1675 u64 pixel_mem = total_pixels * 4; 1676 1677 if (bb_mem > dev_priv->prim_bb_mem) { 1678 DRM_ERROR("Topology is beyond supported limits.\n"); 1679 ret = -EINVAL; 1680 goto out_free; 1681 } 1682 1683 if (pixel_mem > dev_priv->prim_bb_mem) { 1684 DRM_ERROR("Combined output size too large\n"); 1685 ret = -EINVAL; 1686 goto out_free; 1687 } 1688 } 1689 1690 vmw_du_update_layout(dev_priv, arg->num_outputs, rects); 1691 1692 out_free: 1693 kfree(rects); 1694 return ret; 1695 } 1696 1697 /** 1698 * vmw_kms_helper_dirty - Helper to build commands and perform actions based 1699 * on a set of cliprects and a set of display units. 1700 * 1701 * @dev_priv: Pointer to a device private structure. 1702 * @framebuffer: Pointer to the framebuffer on which to perform the actions. 1703 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL. 1704 * Cliprects are given in framebuffer coordinates. 1705 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must 1706 * be NULL. Cliprects are given in source coordinates. 1707 * @dest_x: X coordinate offset for the crtc / destination clip rects. 1708 * @dest_y: Y coordinate offset for the crtc / destination clip rects. 1709 * @num_clips: Number of cliprects in the @clips or @vclips array. 1710 * @increment: Integer with which to increment the clip counter when looping. 1711 * Used to skip a predetermined number of clip rects. 1712 * @dirty: Closure structure. See the description of struct vmw_kms_dirty. 1713 */ 1714 int vmw_kms_helper_dirty(struct vmw_private *dev_priv, 1715 struct vmw_framebuffer *framebuffer, 1716 const struct drm_clip_rect *clips, 1717 const struct drm_vmw_rect *vclips, 1718 s32 dest_x, s32 dest_y, 1719 int num_clips, 1720 int increment, 1721 struct vmw_kms_dirty *dirty) 1722 { 1723 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; 1724 struct drm_crtc *crtc; 1725 u32 num_units = 0; 1726 u32 i, k; 1727 1728 dirty->dev_priv = dev_priv; 1729 1730 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { 1731 if (crtc->primary->fb != &framebuffer->base) 1732 continue; 1733 units[num_units++] = vmw_crtc_to_du(crtc); 1734 } 1735 1736 for (k = 0; k < num_units; k++) { 1737 struct vmw_display_unit *unit = units[k]; 1738 s32 crtc_x = unit->crtc.x; 1739 s32 crtc_y = unit->crtc.y; 1740 s32 crtc_width = unit->crtc.mode.hdisplay; 1741 s32 crtc_height = unit->crtc.mode.vdisplay; 1742 const struct drm_clip_rect *clips_ptr = clips; 1743 const struct drm_vmw_rect *vclips_ptr = vclips; 1744 1745 dirty->unit = unit; 1746 if (dirty->fifo_reserve_size > 0) { 1747 dirty->cmd = vmw_fifo_reserve(dev_priv, 1748 dirty->fifo_reserve_size); 1749 if (!dirty->cmd) { 1750 DRM_ERROR("Couldn't reserve fifo space " 1751 "for dirty blits.\n"); 1752 return -ENOMEM; 1753 } 1754 memset(dirty->cmd, 0, dirty->fifo_reserve_size); 1755 } 1756 dirty->num_hits = 0; 1757 for (i = 0; i < num_clips; i++, clips_ptr += increment, 1758 vclips_ptr += increment) { 1759 s32 clip_left; 1760 s32 clip_top; 1761 1762 /* 1763 * Select clip array type. Note that integer type 1764 * in @clips is unsigned short, whereas in @vclips 1765 * it's 32-bit. 1766 */ 1767 if (clips) { 1768 dirty->fb_x = (s32) clips_ptr->x1; 1769 dirty->fb_y = (s32) clips_ptr->y1; 1770 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x - 1771 crtc_x; 1772 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y - 1773 crtc_y; 1774 } else { 1775 dirty->fb_x = vclips_ptr->x; 1776 dirty->fb_y = vclips_ptr->y; 1777 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w + 1778 dest_x - crtc_x; 1779 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h + 1780 dest_y - crtc_y; 1781 } 1782 1783 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x; 1784 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y; 1785 1786 /* Skip this clip if it's outside the crtc region */ 1787 if (dirty->unit_x1 >= crtc_width || 1788 dirty->unit_y1 >= crtc_height || 1789 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0) 1790 continue; 1791 1792 /* Clip right and bottom to crtc limits */ 1793 dirty->unit_x2 = min_t(s32, dirty->unit_x2, 1794 crtc_width); 1795 dirty->unit_y2 = min_t(s32, dirty->unit_y2, 1796 crtc_height); 1797 1798 /* Clip left and top to crtc limits */ 1799 clip_left = min_t(s32, dirty->unit_x1, 0); 1800 clip_top = min_t(s32, dirty->unit_y1, 0); 1801 dirty->unit_x1 -= clip_left; 1802 dirty->unit_y1 -= clip_top; 1803 dirty->fb_x -= clip_left; 1804 dirty->fb_y -= clip_top; 1805 1806 dirty->clip(dirty); 1807 } 1808 1809 dirty->fifo_commit(dirty); 1810 } 1811 1812 return 0; 1813 } 1814 1815 /** 1816 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before 1817 * command submission. 1818 * 1819 * @dev_priv. Pointer to a device private structure. 1820 * @buf: The buffer object 1821 * @interruptible: Whether to perform waits as interruptible. 1822 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false, 1823 * The buffer will be validated as a GMR. Already pinned buffers will not be 1824 * validated. 1825 * 1826 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if 1827 * interrupted by a signal. 1828 */ 1829 int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv, 1830 struct vmw_dma_buffer *buf, 1831 bool interruptible, 1832 bool validate_as_mob) 1833 { 1834 struct ttm_buffer_object *bo = &buf->base; 1835 int ret; 1836 1837 ttm_bo_reserve(bo, false, false, interruptible, NULL); 1838 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible, 1839 validate_as_mob); 1840 if (ret) 1841 ttm_bo_unreserve(bo); 1842 1843 return ret; 1844 } 1845 1846 /** 1847 * vmw_kms_helper_buffer_revert - Undo the actions of 1848 * vmw_kms_helper_buffer_prepare. 1849 * 1850 * @res: Pointer to the buffer object. 1851 * 1852 * Helper to be used if an error forces the caller to undo the actions of 1853 * vmw_kms_helper_buffer_prepare. 1854 */ 1855 void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf) 1856 { 1857 if (buf) 1858 ttm_bo_unreserve(&buf->base); 1859 } 1860 1861 /** 1862 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after 1863 * kms command submission. 1864 * 1865 * @dev_priv: Pointer to a device private structure. 1866 * @file_priv: Pointer to a struct drm_file representing the caller's 1867 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely 1868 * if non-NULL, @user_fence_rep must be non-NULL. 1869 * @buf: The buffer object. 1870 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1871 * ref-counted fence pointer is returned here. 1872 * @user_fence_rep: Optional pointer to a user-space provided struct 1873 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the 1874 * function copies fence data to user-space in a fail-safe manner. 1875 */ 1876 void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv, 1877 struct drm_file *file_priv, 1878 struct vmw_dma_buffer *buf, 1879 struct vmw_fence_obj **out_fence, 1880 struct drm_vmw_fence_rep __user * 1881 user_fence_rep) 1882 { 1883 struct vmw_fence_obj *fence; 1884 uint32_t handle; 1885 int ret; 1886 1887 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence, 1888 file_priv ? &handle : NULL); 1889 if (buf) 1890 vmw_fence_single_bo(&buf->base, fence); 1891 if (file_priv) 1892 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), 1893 ret, user_fence_rep, fence, 1894 handle); 1895 if (out_fence) 1896 *out_fence = fence; 1897 else 1898 vmw_fence_obj_unreference(&fence); 1899 1900 vmw_kms_helper_buffer_revert(buf); 1901 } 1902 1903 1904 /** 1905 * vmw_kms_helper_resource_revert - Undo the actions of 1906 * vmw_kms_helper_resource_prepare. 1907 * 1908 * @res: Pointer to the resource. Typically a surface. 1909 * 1910 * Helper to be used if an error forces the caller to undo the actions of 1911 * vmw_kms_helper_resource_prepare. 1912 */ 1913 void vmw_kms_helper_resource_revert(struct vmw_resource *res) 1914 { 1915 vmw_kms_helper_buffer_revert(res->backup); 1916 vmw_resource_unreserve(res, false, NULL, 0); 1917 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1918 } 1919 1920 /** 1921 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before 1922 * command submission. 1923 * 1924 * @res: Pointer to the resource. Typically a surface. 1925 * @interruptible: Whether to perform waits as interruptible. 1926 * 1927 * Reserves and validates also the backup buffer if a guest-backed resource. 1928 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1929 * interrupted by a signal. 1930 */ 1931 int vmw_kms_helper_resource_prepare(struct vmw_resource *res, 1932 bool interruptible) 1933 { 1934 int ret = 0; 1935 1936 if (interruptible) 1937 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex); 1938 else 1939 mutex_lock(&res->dev_priv->cmdbuf_mutex); 1940 1941 if (unlikely(ret != 0)) 1942 return -ERESTARTSYS; 1943 1944 ret = vmw_resource_reserve(res, interruptible, false); 1945 if (ret) 1946 goto out_unlock; 1947 1948 if (res->backup) { 1949 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup, 1950 interruptible, 1951 res->dev_priv->has_mob); 1952 if (ret) 1953 goto out_unreserve; 1954 } 1955 ret = vmw_resource_validate(res); 1956 if (ret) 1957 goto out_revert; 1958 return 0; 1959 1960 out_revert: 1961 vmw_kms_helper_buffer_revert(res->backup); 1962 out_unreserve: 1963 vmw_resource_unreserve(res, false, NULL, 0); 1964 out_unlock: 1965 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1966 return ret; 1967 } 1968 1969 /** 1970 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after 1971 * kms command submission. 1972 * 1973 * @res: Pointer to the resource. Typically a surface. 1974 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a 1975 * ref-counted fence pointer is returned here. 1976 */ 1977 void vmw_kms_helper_resource_finish(struct vmw_resource *res, 1978 struct vmw_fence_obj **out_fence) 1979 { 1980 if (res->backup || out_fence) 1981 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup, 1982 out_fence, NULL); 1983 1984 vmw_resource_unreserve(res, false, NULL, 0); 1985 mutex_unlock(&res->dev_priv->cmdbuf_mutex); 1986 } 1987 1988 /** 1989 * vmw_kms_update_proxy - Helper function to update a proxy surface from 1990 * its backing MOB. 1991 * 1992 * @res: Pointer to the surface resource 1993 * @clips: Clip rects in framebuffer (surface) space. 1994 * @num_clips: Number of clips in @clips. 1995 * @increment: Integer with which to increment the clip counter when looping. 1996 * Used to skip a predetermined number of clip rects. 1997 * 1998 * This function makes sure the proxy surface is updated from its backing MOB 1999 * using the region given by @clips. The surface resource @res and its backing 2000 * MOB needs to be reserved and validated on call. 2001 */ 2002 int vmw_kms_update_proxy(struct vmw_resource *res, 2003 const struct drm_clip_rect *clips, 2004 unsigned num_clips, 2005 int increment) 2006 { 2007 struct vmw_private *dev_priv = res->dev_priv; 2008 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size; 2009 struct { 2010 SVGA3dCmdHeader header; 2011 SVGA3dCmdUpdateGBImage body; 2012 } *cmd; 2013 SVGA3dBox *box; 2014 size_t copy_size = 0; 2015 int i; 2016 2017 if (!clips) 2018 return 0; 2019 2020 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips); 2021 if (!cmd) { 2022 DRM_ERROR("Couldn't reserve fifo space for proxy surface " 2023 "update.\n"); 2024 return -ENOMEM; 2025 } 2026 2027 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) { 2028 box = &cmd->body.box; 2029 2030 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; 2031 cmd->header.size = sizeof(cmd->body); 2032 cmd->body.image.sid = res->id; 2033 cmd->body.image.face = 0; 2034 cmd->body.image.mipmap = 0; 2035 2036 if (clips->x1 > size->width || clips->x2 > size->width || 2037 clips->y1 > size->height || clips->y2 > size->height) { 2038 DRM_ERROR("Invalid clips outsize of framebuffer.\n"); 2039 return -EINVAL; 2040 } 2041 2042 box->x = clips->x1; 2043 box->y = clips->y1; 2044 box->z = 0; 2045 box->w = clips->x2 - clips->x1; 2046 box->h = clips->y2 - clips->y1; 2047 box->d = 1; 2048 2049 copy_size += sizeof(*cmd); 2050 } 2051 2052 vmw_fifo_commit(dev_priv, copy_size); 2053 2054 return 0; 2055 } 2056 2057 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv, 2058 unsigned unit, 2059 u32 max_width, 2060 u32 max_height, 2061 struct drm_connector **p_con, 2062 struct drm_crtc **p_crtc, 2063 struct drm_display_mode **p_mode) 2064 { 2065 struct drm_connector *con; 2066 struct vmw_display_unit *du; 2067 struct drm_display_mode *mode; 2068 int i = 0; 2069 2070 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list, 2071 head) { 2072 if (i == unit) 2073 break; 2074 2075 ++i; 2076 } 2077 2078 if (i != unit) { 2079 DRM_ERROR("Could not find initial display unit.\n"); 2080 return -EINVAL; 2081 } 2082 2083 if (list_empty(&con->modes)) 2084 (void) vmw_du_connector_fill_modes(con, max_width, max_height); 2085 2086 if (list_empty(&con->modes)) { 2087 DRM_ERROR("Could not find initial display mode.\n"); 2088 return -EINVAL; 2089 } 2090 2091 du = vmw_connector_to_du(con); 2092 *p_con = con; 2093 *p_crtc = &du->crtc; 2094 2095 list_for_each_entry(mode, &con->modes, head) { 2096 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2097 break; 2098 } 2099 2100 if (mode->type & DRM_MODE_TYPE_PREFERRED) 2101 *p_mode = mode; 2102 else { 2103 WARN_ONCE(true, "Could not find initial preferred mode.\n"); 2104 *p_mode = list_first_entry(&con->modes, 2105 struct drm_display_mode, 2106 head); 2107 } 2108 2109 return 0; 2110 } 2111