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