1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /************************************************************************** 3 * 4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA 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 <drm/ttm/ttm_placement.h> 29 30 #include "vmwgfx_drv.h" 31 #include "vmwgfx_resource_priv.h" 32 #include "vmwgfx_so.h" 33 #include "vmwgfx_binding.h" 34 #include "vmw_surface_cache.h" 35 #include "device_include/svga3d_surfacedefs.h" 36 37 #define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32) 38 #define SVGA3D_FLAGS_UPPER_32(svga3d_flags) (svga3d_flags >> 32) 39 #define SVGA3D_FLAGS_LOWER_32(svga3d_flags) \ 40 (svga3d_flags & ((uint64_t)U32_MAX)) 41 42 /** 43 * struct vmw_user_surface - User-space visible surface resource 44 * 45 * @prime: The TTM prime object. 46 * @base: The TTM base object handling user-space visibility. 47 * @srf: The surface metadata. 48 * @master: Master of the creating client. Used for security check. 49 */ 50 struct vmw_user_surface { 51 struct ttm_prime_object prime; 52 struct vmw_surface srf; 53 struct drm_master *master; 54 }; 55 56 /** 57 * struct vmw_surface_offset - Backing store mip level offset info 58 * 59 * @face: Surface face. 60 * @mip: Mip level. 61 * @bo_offset: Offset into backing store of this mip level. 62 * 63 */ 64 struct vmw_surface_offset { 65 uint32_t face; 66 uint32_t mip; 67 uint32_t bo_offset; 68 }; 69 70 /** 71 * struct vmw_surface_dirty - Surface dirty-tracker 72 * @cache: Cached layout information of the surface. 73 * @num_subres: Number of subresources. 74 * @boxes: Array of SVGA3dBoxes indicating dirty regions. One per subresource. 75 */ 76 struct vmw_surface_dirty { 77 struct vmw_surface_cache cache; 78 u32 num_subres; 79 SVGA3dBox boxes[]; 80 }; 81 82 static void vmw_user_surface_free(struct vmw_resource *res); 83 static struct vmw_resource * 84 vmw_user_surface_base_to_res(struct ttm_base_object *base); 85 static int vmw_legacy_srf_bind(struct vmw_resource *res, 86 struct ttm_validate_buffer *val_buf); 87 static int vmw_legacy_srf_unbind(struct vmw_resource *res, 88 bool readback, 89 struct ttm_validate_buffer *val_buf); 90 static int vmw_legacy_srf_create(struct vmw_resource *res); 91 static int vmw_legacy_srf_destroy(struct vmw_resource *res); 92 static int vmw_gb_surface_create(struct vmw_resource *res); 93 static int vmw_gb_surface_bind(struct vmw_resource *res, 94 struct ttm_validate_buffer *val_buf); 95 static int vmw_gb_surface_unbind(struct vmw_resource *res, 96 bool readback, 97 struct ttm_validate_buffer *val_buf); 98 static int vmw_gb_surface_destroy(struct vmw_resource *res); 99 static int 100 vmw_gb_surface_define_internal(struct drm_device *dev, 101 struct drm_vmw_gb_surface_create_ext_req *req, 102 struct drm_vmw_gb_surface_create_rep *rep, 103 struct drm_file *file_priv); 104 static int 105 vmw_gb_surface_reference_internal(struct drm_device *dev, 106 struct drm_vmw_surface_arg *req, 107 struct drm_vmw_gb_surface_ref_ext_rep *rep, 108 struct drm_file *file_priv); 109 110 static void vmw_surface_dirty_free(struct vmw_resource *res); 111 static int vmw_surface_dirty_alloc(struct vmw_resource *res); 112 static int vmw_surface_dirty_sync(struct vmw_resource *res); 113 static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, 114 size_t end); 115 static int vmw_surface_clean(struct vmw_resource *res); 116 117 static const struct vmw_user_resource_conv user_surface_conv = { 118 .object_type = VMW_RES_SURFACE, 119 .base_obj_to_res = vmw_user_surface_base_to_res, 120 .res_free = vmw_user_surface_free 121 }; 122 123 const struct vmw_user_resource_conv *user_surface_converter = 124 &user_surface_conv; 125 126 static const struct vmw_res_func vmw_legacy_surface_func = { 127 .res_type = vmw_res_surface, 128 .needs_backup = false, 129 .may_evict = true, 130 .prio = 1, 131 .dirty_prio = 1, 132 .type_name = "legacy surfaces", 133 .backup_placement = &vmw_srf_placement, 134 .create = &vmw_legacy_srf_create, 135 .destroy = &vmw_legacy_srf_destroy, 136 .bind = &vmw_legacy_srf_bind, 137 .unbind = &vmw_legacy_srf_unbind 138 }; 139 140 static const struct vmw_res_func vmw_gb_surface_func = { 141 .res_type = vmw_res_surface, 142 .needs_backup = true, 143 .may_evict = true, 144 .prio = 1, 145 .dirty_prio = 2, 146 .type_name = "guest backed surfaces", 147 .backup_placement = &vmw_mob_placement, 148 .create = vmw_gb_surface_create, 149 .destroy = vmw_gb_surface_destroy, 150 .bind = vmw_gb_surface_bind, 151 .unbind = vmw_gb_surface_unbind, 152 .dirty_alloc = vmw_surface_dirty_alloc, 153 .dirty_free = vmw_surface_dirty_free, 154 .dirty_sync = vmw_surface_dirty_sync, 155 .dirty_range_add = vmw_surface_dirty_range_add, 156 .clean = vmw_surface_clean, 157 }; 158 159 /* 160 * struct vmw_surface_dma - SVGA3D DMA command 161 */ 162 struct vmw_surface_dma { 163 SVGA3dCmdHeader header; 164 SVGA3dCmdSurfaceDMA body; 165 SVGA3dCopyBox cb; 166 SVGA3dCmdSurfaceDMASuffix suffix; 167 }; 168 169 /* 170 * struct vmw_surface_define - SVGA3D Surface Define command 171 */ 172 struct vmw_surface_define { 173 SVGA3dCmdHeader header; 174 SVGA3dCmdDefineSurface body; 175 }; 176 177 /* 178 * struct vmw_surface_destroy - SVGA3D Surface Destroy command 179 */ 180 struct vmw_surface_destroy { 181 SVGA3dCmdHeader header; 182 SVGA3dCmdDestroySurface body; 183 }; 184 185 186 /** 187 * vmw_surface_dma_size - Compute fifo size for a dma command. 188 * 189 * @srf: Pointer to a struct vmw_surface 190 * 191 * Computes the required size for a surface dma command for backup or 192 * restoration of the surface represented by @srf. 193 */ 194 static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf) 195 { 196 return srf->metadata.num_sizes * sizeof(struct vmw_surface_dma); 197 } 198 199 200 /** 201 * vmw_surface_define_size - Compute fifo size for a surface define command. 202 * 203 * @srf: Pointer to a struct vmw_surface 204 * 205 * Computes the required size for a surface define command for the definition 206 * of the surface represented by @srf. 207 */ 208 static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf) 209 { 210 return sizeof(struct vmw_surface_define) + srf->metadata.num_sizes * 211 sizeof(SVGA3dSize); 212 } 213 214 215 /** 216 * vmw_surface_destroy_size - Compute fifo size for a surface destroy command. 217 * 218 * Computes the required size for a surface destroy command for the destruction 219 * of a hw surface. 220 */ 221 static inline uint32_t vmw_surface_destroy_size(void) 222 { 223 return sizeof(struct vmw_surface_destroy); 224 } 225 226 /** 227 * vmw_surface_destroy_encode - Encode a surface_destroy command. 228 * 229 * @id: The surface id 230 * @cmd_space: Pointer to memory area in which the commands should be encoded. 231 */ 232 static void vmw_surface_destroy_encode(uint32_t id, 233 void *cmd_space) 234 { 235 struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *) 236 cmd_space; 237 238 cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY; 239 cmd->header.size = sizeof(cmd->body); 240 cmd->body.sid = id; 241 } 242 243 /** 244 * vmw_surface_define_encode - Encode a surface_define command. 245 * 246 * @srf: Pointer to a struct vmw_surface object. 247 * @cmd_space: Pointer to memory area in which the commands should be encoded. 248 */ 249 static void vmw_surface_define_encode(const struct vmw_surface *srf, 250 void *cmd_space) 251 { 252 struct vmw_surface_define *cmd = (struct vmw_surface_define *) 253 cmd_space; 254 struct drm_vmw_size *src_size; 255 SVGA3dSize *cmd_size; 256 uint32_t cmd_len; 257 int i; 258 259 cmd_len = sizeof(cmd->body) + srf->metadata.num_sizes * 260 sizeof(SVGA3dSize); 261 262 cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE; 263 cmd->header.size = cmd_len; 264 cmd->body.sid = srf->res.id; 265 /* 266 * Downcast of surfaceFlags, was upcasted when received from user-space, 267 * since driver internally stores as 64 bit. 268 * For legacy surface define only 32 bit flag is supported. 269 */ 270 cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->metadata.flags; 271 cmd->body.format = srf->metadata.format; 272 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) 273 cmd->body.face[i].numMipLevels = srf->metadata.mip_levels[i]; 274 275 cmd += 1; 276 cmd_size = (SVGA3dSize *) cmd; 277 src_size = srf->metadata.sizes; 278 279 for (i = 0; i < srf->metadata.num_sizes; ++i, cmd_size++, src_size++) { 280 cmd_size->width = src_size->width; 281 cmd_size->height = src_size->height; 282 cmd_size->depth = src_size->depth; 283 } 284 } 285 286 /** 287 * vmw_surface_dma_encode - Encode a surface_dma command. 288 * 289 * @srf: Pointer to a struct vmw_surface object. 290 * @cmd_space: Pointer to memory area in which the commands should be encoded. 291 * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents 292 * should be placed or read from. 293 * @to_surface: Boolean whether to DMA to the surface or from the surface. 294 */ 295 static void vmw_surface_dma_encode(struct vmw_surface *srf, 296 void *cmd_space, 297 const SVGAGuestPtr *ptr, 298 bool to_surface) 299 { 300 uint32_t i; 301 struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space; 302 const struct SVGA3dSurfaceDesc *desc = 303 vmw_surface_get_desc(srf->metadata.format); 304 305 for (i = 0; i < srf->metadata.num_sizes; ++i) { 306 SVGA3dCmdHeader *header = &cmd->header; 307 SVGA3dCmdSurfaceDMA *body = &cmd->body; 308 SVGA3dCopyBox *cb = &cmd->cb; 309 SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix; 310 const struct vmw_surface_offset *cur_offset = &srf->offsets[i]; 311 const struct drm_vmw_size *cur_size = &srf->metadata.sizes[i]; 312 313 header->id = SVGA_3D_CMD_SURFACE_DMA; 314 header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix); 315 316 body->guest.ptr = *ptr; 317 body->guest.ptr.offset += cur_offset->bo_offset; 318 body->guest.pitch = vmw_surface_calculate_pitch(desc, cur_size); 319 body->host.sid = srf->res.id; 320 body->host.face = cur_offset->face; 321 body->host.mipmap = cur_offset->mip; 322 body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM : 323 SVGA3D_READ_HOST_VRAM); 324 cb->x = 0; 325 cb->y = 0; 326 cb->z = 0; 327 cb->srcx = 0; 328 cb->srcy = 0; 329 cb->srcz = 0; 330 cb->w = cur_size->width; 331 cb->h = cur_size->height; 332 cb->d = cur_size->depth; 333 334 suffix->suffixSize = sizeof(*suffix); 335 suffix->maximumOffset = 336 vmw_surface_get_image_buffer_size(desc, cur_size, 337 body->guest.pitch); 338 suffix->flags.discard = 0; 339 suffix->flags.unsynchronized = 0; 340 suffix->flags.reserved = 0; 341 ++cmd; 342 } 343 }; 344 345 346 /** 347 * vmw_hw_surface_destroy - destroy a Device surface 348 * 349 * @res: Pointer to a struct vmw_resource embedded in a struct 350 * vmw_surface. 351 * 352 * Destroys a the device surface associated with a struct vmw_surface if 353 * any, and adjusts resource count accordingly. 354 */ 355 static void vmw_hw_surface_destroy(struct vmw_resource *res) 356 { 357 358 struct vmw_private *dev_priv = res->dev_priv; 359 void *cmd; 360 361 if (res->func->destroy == vmw_gb_surface_destroy) { 362 (void) vmw_gb_surface_destroy(res); 363 return; 364 } 365 366 if (res->id != -1) { 367 368 cmd = VMW_CMD_RESERVE(dev_priv, vmw_surface_destroy_size()); 369 if (unlikely(!cmd)) 370 return; 371 372 vmw_surface_destroy_encode(res->id, cmd); 373 vmw_cmd_commit(dev_priv, vmw_surface_destroy_size()); 374 375 /* 376 * used_memory_size_atomic, or separate lock 377 * to avoid taking dev_priv::cmdbuf_mutex in 378 * the destroy path. 379 */ 380 381 mutex_lock(&dev_priv->cmdbuf_mutex); 382 dev_priv->used_memory_size -= res->backup_size; 383 mutex_unlock(&dev_priv->cmdbuf_mutex); 384 } 385 } 386 387 /** 388 * vmw_legacy_srf_create - Create a device surface as part of the 389 * resource validation process. 390 * 391 * @res: Pointer to a struct vmw_surface. 392 * 393 * If the surface doesn't have a hw id. 394 * 395 * Returns -EBUSY if there wasn't sufficient device resources to 396 * complete the validation. Retry after freeing up resources. 397 * 398 * May return other errors if the kernel is out of guest resources. 399 */ 400 static int vmw_legacy_srf_create(struct vmw_resource *res) 401 { 402 struct vmw_private *dev_priv = res->dev_priv; 403 struct vmw_surface *srf; 404 uint32_t submit_size; 405 uint8_t *cmd; 406 int ret; 407 408 if (likely(res->id != -1)) 409 return 0; 410 411 srf = vmw_res_to_srf(res); 412 if (unlikely(dev_priv->used_memory_size + res->backup_size >= 413 dev_priv->memory_size)) 414 return -EBUSY; 415 416 /* 417 * Alloc id for the resource. 418 */ 419 420 ret = vmw_resource_alloc_id(res); 421 if (unlikely(ret != 0)) { 422 DRM_ERROR("Failed to allocate a surface id.\n"); 423 goto out_no_id; 424 } 425 426 if (unlikely(res->id >= SVGA3D_HB_MAX_SURFACE_IDS)) { 427 ret = -EBUSY; 428 goto out_no_fifo; 429 } 430 431 /* 432 * Encode surface define- commands. 433 */ 434 435 submit_size = vmw_surface_define_size(srf); 436 cmd = VMW_CMD_RESERVE(dev_priv, submit_size); 437 if (unlikely(!cmd)) { 438 ret = -ENOMEM; 439 goto out_no_fifo; 440 } 441 442 vmw_surface_define_encode(srf, cmd); 443 vmw_cmd_commit(dev_priv, submit_size); 444 vmw_fifo_resource_inc(dev_priv); 445 446 /* 447 * Surface memory usage accounting. 448 */ 449 450 dev_priv->used_memory_size += res->backup_size; 451 return 0; 452 453 out_no_fifo: 454 vmw_resource_release_id(res); 455 out_no_id: 456 return ret; 457 } 458 459 /** 460 * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface. 461 * 462 * @res: Pointer to a struct vmw_res embedded in a struct 463 * vmw_surface. 464 * @val_buf: Pointer to a struct ttm_validate_buffer containing 465 * information about the backup buffer. 466 * @bind: Boolean wether to DMA to the surface. 467 * 468 * Transfer backup data to or from a legacy surface as part of the 469 * validation process. 470 * May return other errors if the kernel is out of guest resources. 471 * The backup buffer will be fenced or idle upon successful completion, 472 * and if the surface needs persistent backup storage, the backup buffer 473 * will also be returned reserved iff @bind is true. 474 */ 475 static int vmw_legacy_srf_dma(struct vmw_resource *res, 476 struct ttm_validate_buffer *val_buf, 477 bool bind) 478 { 479 SVGAGuestPtr ptr; 480 struct vmw_fence_obj *fence; 481 uint32_t submit_size; 482 struct vmw_surface *srf = vmw_res_to_srf(res); 483 uint8_t *cmd; 484 struct vmw_private *dev_priv = res->dev_priv; 485 486 BUG_ON(!val_buf->bo); 487 submit_size = vmw_surface_dma_size(srf); 488 cmd = VMW_CMD_RESERVE(dev_priv, submit_size); 489 if (unlikely(!cmd)) 490 return -ENOMEM; 491 492 vmw_bo_get_guest_ptr(val_buf->bo, &ptr); 493 vmw_surface_dma_encode(srf, cmd, &ptr, bind); 494 495 vmw_cmd_commit(dev_priv, submit_size); 496 497 /* 498 * Create a fence object and fence the backup buffer. 499 */ 500 501 (void) vmw_execbuf_fence_commands(NULL, dev_priv, 502 &fence, NULL); 503 504 vmw_bo_fence_single(val_buf->bo, fence); 505 506 if (likely(fence != NULL)) 507 vmw_fence_obj_unreference(&fence); 508 509 return 0; 510 } 511 512 /** 513 * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the 514 * surface validation process. 515 * 516 * @res: Pointer to a struct vmw_res embedded in a struct 517 * vmw_surface. 518 * @val_buf: Pointer to a struct ttm_validate_buffer containing 519 * information about the backup buffer. 520 * 521 * This function will copy backup data to the surface if the 522 * backup buffer is dirty. 523 */ 524 static int vmw_legacy_srf_bind(struct vmw_resource *res, 525 struct ttm_validate_buffer *val_buf) 526 { 527 if (!res->backup_dirty) 528 return 0; 529 530 return vmw_legacy_srf_dma(res, val_buf, true); 531 } 532 533 534 /** 535 * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the 536 * surface eviction process. 537 * 538 * @res: Pointer to a struct vmw_res embedded in a struct 539 * vmw_surface. 540 * @readback: Readback - only true if dirty 541 * @val_buf: Pointer to a struct ttm_validate_buffer containing 542 * information about the backup buffer. 543 * 544 * This function will copy backup data from the surface. 545 */ 546 static int vmw_legacy_srf_unbind(struct vmw_resource *res, 547 bool readback, 548 struct ttm_validate_buffer *val_buf) 549 { 550 if (unlikely(readback)) 551 return vmw_legacy_srf_dma(res, val_buf, false); 552 return 0; 553 } 554 555 /** 556 * vmw_legacy_srf_destroy - Destroy a device surface as part of a 557 * resource eviction process. 558 * 559 * @res: Pointer to a struct vmw_res embedded in a struct 560 * vmw_surface. 561 */ 562 static int vmw_legacy_srf_destroy(struct vmw_resource *res) 563 { 564 struct vmw_private *dev_priv = res->dev_priv; 565 uint32_t submit_size; 566 uint8_t *cmd; 567 568 BUG_ON(res->id == -1); 569 570 /* 571 * Encode the dma- and surface destroy commands. 572 */ 573 574 submit_size = vmw_surface_destroy_size(); 575 cmd = VMW_CMD_RESERVE(dev_priv, submit_size); 576 if (unlikely(!cmd)) 577 return -ENOMEM; 578 579 vmw_surface_destroy_encode(res->id, cmd); 580 vmw_cmd_commit(dev_priv, submit_size); 581 582 /* 583 * Surface memory usage accounting. 584 */ 585 586 dev_priv->used_memory_size -= res->backup_size; 587 588 /* 589 * Release the surface ID. 590 */ 591 592 vmw_resource_release_id(res); 593 vmw_fifo_resource_dec(dev_priv); 594 595 return 0; 596 } 597 598 599 /** 600 * vmw_surface_init - initialize a struct vmw_surface 601 * 602 * @dev_priv: Pointer to a device private struct. 603 * @srf: Pointer to the struct vmw_surface to initialize. 604 * @res_free: Pointer to a resource destructor used to free 605 * the object. 606 */ 607 static int vmw_surface_init(struct vmw_private *dev_priv, 608 struct vmw_surface *srf, 609 void (*res_free) (struct vmw_resource *res)) 610 { 611 int ret; 612 struct vmw_resource *res = &srf->res; 613 614 BUG_ON(!res_free); 615 ret = vmw_resource_init(dev_priv, res, true, res_free, 616 (dev_priv->has_mob) ? &vmw_gb_surface_func : 617 &vmw_legacy_surface_func); 618 619 if (unlikely(ret != 0)) { 620 res_free(res); 621 return ret; 622 } 623 624 /* 625 * The surface won't be visible to hardware until a 626 * surface validate. 627 */ 628 629 INIT_LIST_HEAD(&srf->view_list); 630 res->hw_destroy = vmw_hw_surface_destroy; 631 return ret; 632 } 633 634 /** 635 * vmw_user_surface_base_to_res - TTM base object to resource converter for 636 * user visible surfaces 637 * 638 * @base: Pointer to a TTM base object 639 * 640 * Returns the struct vmw_resource embedded in a struct vmw_surface 641 * for the user-visible object identified by the TTM base object @base. 642 */ 643 static struct vmw_resource * 644 vmw_user_surface_base_to_res(struct ttm_base_object *base) 645 { 646 return &(container_of(base, struct vmw_user_surface, 647 prime.base)->srf.res); 648 } 649 650 /** 651 * vmw_user_surface_free - User visible surface resource destructor 652 * 653 * @res: A struct vmw_resource embedded in a struct vmw_surface. 654 */ 655 static void vmw_user_surface_free(struct vmw_resource *res) 656 { 657 struct vmw_surface *srf = vmw_res_to_srf(res); 658 struct vmw_user_surface *user_srf = 659 container_of(srf, struct vmw_user_surface, srf); 660 661 WARN_ON_ONCE(res->dirty); 662 if (user_srf->master) 663 drm_master_put(&user_srf->master); 664 kfree(srf->offsets); 665 kfree(srf->metadata.sizes); 666 kfree(srf->snooper.image); 667 ttm_prime_object_kfree(user_srf, prime); 668 } 669 670 /** 671 * vmw_user_surface_base_release - User visible surface TTM base object destructor 672 * 673 * @p_base: Pointer to a pointer to a TTM base object 674 * embedded in a struct vmw_user_surface. 675 * 676 * Drops the base object's reference on its resource, and the 677 * pointer pointed to by *p_base is set to NULL. 678 */ 679 static void vmw_user_surface_base_release(struct ttm_base_object **p_base) 680 { 681 struct ttm_base_object *base = *p_base; 682 struct vmw_user_surface *user_srf = 683 container_of(base, struct vmw_user_surface, prime.base); 684 struct vmw_resource *res = &user_srf->srf.res; 685 686 if (base->shareable && res && res->backup) 687 drm_gem_object_put(&res->backup->base.base); 688 689 *p_base = NULL; 690 vmw_resource_unreference(&res); 691 } 692 693 /** 694 * vmw_surface_destroy_ioctl - Ioctl function implementing 695 * the user surface destroy functionality. 696 * 697 * @dev: Pointer to a struct drm_device. 698 * @data: Pointer to data copied from / to user-space. 699 * @file_priv: Pointer to a drm file private structure. 700 */ 701 int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, 702 struct drm_file *file_priv) 703 { 704 struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; 705 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 706 707 return ttm_ref_object_base_unref(tfile, arg->sid); 708 } 709 710 /** 711 * vmw_surface_define_ioctl - Ioctl function implementing 712 * the user surface define functionality. 713 * 714 * @dev: Pointer to a struct drm_device. 715 * @data: Pointer to data copied from / to user-space. 716 * @file_priv: Pointer to a drm file private structure. 717 */ 718 int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 719 struct drm_file *file_priv) 720 { 721 struct vmw_private *dev_priv = vmw_priv(dev); 722 struct vmw_user_surface *user_srf; 723 struct vmw_surface *srf; 724 struct vmw_surface_metadata *metadata; 725 struct vmw_resource *res; 726 struct vmw_resource *tmp; 727 union drm_vmw_surface_create_arg *arg = 728 (union drm_vmw_surface_create_arg *)data; 729 struct drm_vmw_surface_create_req *req = &arg->req; 730 struct drm_vmw_surface_arg *rep = &arg->rep; 731 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 732 int ret; 733 int i, j; 734 uint32_t cur_bo_offset; 735 struct drm_vmw_size *cur_size; 736 struct vmw_surface_offset *cur_offset; 737 uint32_t num_sizes; 738 const SVGA3dSurfaceDesc *desc; 739 740 num_sizes = 0; 741 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { 742 if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS) 743 return -EINVAL; 744 num_sizes += req->mip_levels[i]; 745 } 746 747 if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS || 748 num_sizes == 0) 749 return -EINVAL; 750 751 desc = vmw_surface_get_desc(req->format); 752 if (unlikely(desc->blockDesc == SVGA3DBLOCKDESC_NONE)) { 753 VMW_DEBUG_USER("Invalid format %d for surface creation.\n", 754 req->format); 755 return -EINVAL; 756 } 757 758 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); 759 if (unlikely(!user_srf)) { 760 ret = -ENOMEM; 761 goto out_unlock; 762 } 763 764 srf = &user_srf->srf; 765 metadata = &srf->metadata; 766 res = &srf->res; 767 768 /* Driver internally stores as 64-bit flags */ 769 metadata->flags = (SVGA3dSurfaceAllFlags)req->flags; 770 metadata->format = req->format; 771 metadata->scanout = req->scanout; 772 773 memcpy(metadata->mip_levels, req->mip_levels, 774 sizeof(metadata->mip_levels)); 775 metadata->num_sizes = num_sizes; 776 metadata->sizes = 777 memdup_user((struct drm_vmw_size __user *)(unsigned long) 778 req->size_addr, 779 sizeof(*metadata->sizes) * metadata->num_sizes); 780 if (IS_ERR(metadata->sizes)) { 781 ret = PTR_ERR(metadata->sizes); 782 goto out_no_sizes; 783 } 784 srf->offsets = kmalloc_array(metadata->num_sizes, sizeof(*srf->offsets), 785 GFP_KERNEL); 786 if (unlikely(!srf->offsets)) { 787 ret = -ENOMEM; 788 goto out_no_offsets; 789 } 790 791 metadata->base_size = *srf->metadata.sizes; 792 metadata->autogen_filter = SVGA3D_TEX_FILTER_NONE; 793 metadata->multisample_count = 0; 794 metadata->multisample_pattern = SVGA3D_MS_PATTERN_NONE; 795 metadata->quality_level = SVGA3D_MS_QUALITY_NONE; 796 797 cur_bo_offset = 0; 798 cur_offset = srf->offsets; 799 cur_size = metadata->sizes; 800 801 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { 802 for (j = 0; j < metadata->mip_levels[i]; ++j) { 803 uint32_t stride = vmw_surface_calculate_pitch( 804 desc, cur_size); 805 806 cur_offset->face = i; 807 cur_offset->mip = j; 808 cur_offset->bo_offset = cur_bo_offset; 809 cur_bo_offset += vmw_surface_get_image_buffer_size 810 (desc, cur_size, stride); 811 ++cur_offset; 812 ++cur_size; 813 } 814 } 815 res->backup_size = cur_bo_offset; 816 if (metadata->scanout && 817 metadata->num_sizes == 1 && 818 metadata->sizes[0].width == 64 && 819 metadata->sizes[0].height == 64 && 820 metadata->format == SVGA3D_A8R8G8B8) { 821 822 srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL); 823 if (!srf->snooper.image) { 824 DRM_ERROR("Failed to allocate cursor_image\n"); 825 ret = -ENOMEM; 826 goto out_no_copy; 827 } 828 } else { 829 srf->snooper.image = NULL; 830 } 831 832 user_srf->prime.base.shareable = false; 833 user_srf->prime.base.tfile = NULL; 834 if (drm_is_primary_client(file_priv)) 835 user_srf->master = drm_file_get_master(file_priv); 836 837 /** 838 * From this point, the generic resource management functions 839 * destroy the object on failure. 840 */ 841 842 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); 843 if (unlikely(ret != 0)) 844 goto out_unlock; 845 846 /* 847 * A gb-aware client referencing a shared surface will 848 * expect a backup buffer to be present. 849 */ 850 if (dev_priv->has_mob && req->shareable) { 851 uint32_t backup_handle; 852 853 ret = vmw_gem_object_create_with_handle(dev_priv, 854 file_priv, 855 res->backup_size, 856 &backup_handle, 857 &res->backup); 858 if (unlikely(ret != 0)) { 859 vmw_resource_unreference(&res); 860 goto out_unlock; 861 } 862 vmw_bo_reference(res->backup); 863 drm_gem_object_get(&res->backup->base.base); 864 } 865 866 tmp = vmw_resource_reference(&srf->res); 867 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, 868 req->shareable, VMW_RES_SURFACE, 869 &vmw_user_surface_base_release); 870 871 if (unlikely(ret != 0)) { 872 vmw_resource_unreference(&tmp); 873 vmw_resource_unreference(&res); 874 goto out_unlock; 875 } 876 877 rep->sid = user_srf->prime.base.handle; 878 vmw_resource_unreference(&res); 879 880 return 0; 881 out_no_copy: 882 kfree(srf->offsets); 883 out_no_offsets: 884 kfree(metadata->sizes); 885 out_no_sizes: 886 ttm_prime_object_kfree(user_srf, prime); 887 out_unlock: 888 return ret; 889 } 890 891 892 static int 893 vmw_surface_handle_reference(struct vmw_private *dev_priv, 894 struct drm_file *file_priv, 895 uint32_t u_handle, 896 enum drm_vmw_handle_type handle_type, 897 struct ttm_base_object **base_p) 898 { 899 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 900 struct vmw_user_surface *user_srf; 901 uint32_t handle; 902 struct ttm_base_object *base; 903 int ret; 904 905 if (handle_type == DRM_VMW_HANDLE_PRIME) { 906 ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle); 907 if (unlikely(ret != 0)) 908 return ret; 909 } else { 910 handle = u_handle; 911 } 912 913 ret = -EINVAL; 914 base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle); 915 if (unlikely(!base)) { 916 VMW_DEBUG_USER("Could not find surface to reference.\n"); 917 goto out_no_lookup; 918 } 919 920 if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) { 921 VMW_DEBUG_USER("Referenced object is not a surface.\n"); 922 goto out_bad_resource; 923 } 924 if (handle_type != DRM_VMW_HANDLE_PRIME) { 925 bool require_exist = false; 926 927 user_srf = container_of(base, struct vmw_user_surface, 928 prime.base); 929 930 /* Error out if we are unauthenticated primary */ 931 if (drm_is_primary_client(file_priv) && 932 !file_priv->authenticated) { 933 ret = -EACCES; 934 goto out_bad_resource; 935 } 936 937 /* 938 * Make sure the surface creator has the same 939 * authenticating master, or is already registered with us. 940 */ 941 if (drm_is_primary_client(file_priv) && 942 user_srf->master != file_priv->master) 943 require_exist = true; 944 945 if (unlikely(drm_is_render_client(file_priv))) 946 require_exist = true; 947 948 ret = ttm_ref_object_add(tfile, base, NULL, require_exist); 949 if (unlikely(ret != 0)) { 950 DRM_ERROR("Could not add a reference to a surface.\n"); 951 goto out_bad_resource; 952 } 953 } 954 955 *base_p = base; 956 return 0; 957 958 out_bad_resource: 959 ttm_base_object_unref(&base); 960 out_no_lookup: 961 if (handle_type == DRM_VMW_HANDLE_PRIME) 962 (void) ttm_ref_object_base_unref(tfile, handle); 963 964 return ret; 965 } 966 967 /** 968 * vmw_surface_reference_ioctl - Ioctl function implementing 969 * the user surface reference functionality. 970 * 971 * @dev: Pointer to a struct drm_device. 972 * @data: Pointer to data copied from / to user-space. 973 * @file_priv: Pointer to a drm file private structure. 974 */ 975 int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, 976 struct drm_file *file_priv) 977 { 978 struct vmw_private *dev_priv = vmw_priv(dev); 979 union drm_vmw_surface_reference_arg *arg = 980 (union drm_vmw_surface_reference_arg *)data; 981 struct drm_vmw_surface_arg *req = &arg->req; 982 struct drm_vmw_surface_create_req *rep = &arg->rep; 983 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 984 struct vmw_surface *srf; 985 struct vmw_user_surface *user_srf; 986 struct drm_vmw_size __user *user_sizes; 987 struct ttm_base_object *base; 988 int ret; 989 990 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, 991 req->handle_type, &base); 992 if (unlikely(ret != 0)) 993 return ret; 994 995 user_srf = container_of(base, struct vmw_user_surface, prime.base); 996 srf = &user_srf->srf; 997 998 /* Downcast of flags when sending back to user space */ 999 rep->flags = (uint32_t)srf->metadata.flags; 1000 rep->format = srf->metadata.format; 1001 memcpy(rep->mip_levels, srf->metadata.mip_levels, 1002 sizeof(srf->metadata.mip_levels)); 1003 user_sizes = (struct drm_vmw_size __user *)(unsigned long) 1004 rep->size_addr; 1005 1006 if (user_sizes) 1007 ret = copy_to_user(user_sizes, &srf->metadata.base_size, 1008 sizeof(srf->metadata.base_size)); 1009 if (unlikely(ret != 0)) { 1010 VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes, 1011 srf->metadata.num_sizes); 1012 ttm_ref_object_base_unref(tfile, base->handle); 1013 ret = -EFAULT; 1014 } 1015 1016 ttm_base_object_unref(&base); 1017 1018 return ret; 1019 } 1020 1021 /** 1022 * vmw_gb_surface_create - Encode a surface_define command. 1023 * 1024 * @res: Pointer to a struct vmw_resource embedded in a struct 1025 * vmw_surface. 1026 */ 1027 static int vmw_gb_surface_create(struct vmw_resource *res) 1028 { 1029 struct vmw_private *dev_priv = res->dev_priv; 1030 struct vmw_surface *srf = vmw_res_to_srf(res); 1031 struct vmw_surface_metadata *metadata = &srf->metadata; 1032 uint32_t cmd_len, cmd_id, submit_len; 1033 int ret; 1034 struct { 1035 SVGA3dCmdHeader header; 1036 SVGA3dCmdDefineGBSurface body; 1037 } *cmd; 1038 struct { 1039 SVGA3dCmdHeader header; 1040 SVGA3dCmdDefineGBSurface_v2 body; 1041 } *cmd2; 1042 struct { 1043 SVGA3dCmdHeader header; 1044 SVGA3dCmdDefineGBSurface_v3 body; 1045 } *cmd3; 1046 struct { 1047 SVGA3dCmdHeader header; 1048 SVGA3dCmdDefineGBSurface_v4 body; 1049 } *cmd4; 1050 1051 if (likely(res->id != -1)) 1052 return 0; 1053 1054 vmw_fifo_resource_inc(dev_priv); 1055 ret = vmw_resource_alloc_id(res); 1056 if (unlikely(ret != 0)) { 1057 DRM_ERROR("Failed to allocate a surface id.\n"); 1058 goto out_no_id; 1059 } 1060 1061 if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) { 1062 ret = -EBUSY; 1063 goto out_no_fifo; 1064 } 1065 1066 if (has_sm5_context(dev_priv) && metadata->array_size > 0) { 1067 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V4; 1068 cmd_len = sizeof(cmd4->body); 1069 submit_len = sizeof(*cmd4); 1070 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { 1071 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3; 1072 cmd_len = sizeof(cmd3->body); 1073 submit_len = sizeof(*cmd3); 1074 } else if (metadata->array_size > 0) { 1075 /* VMW_SM_4 support verified at creation time. */ 1076 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2; 1077 cmd_len = sizeof(cmd2->body); 1078 submit_len = sizeof(*cmd2); 1079 } else { 1080 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE; 1081 cmd_len = sizeof(cmd->body); 1082 submit_len = sizeof(*cmd); 1083 } 1084 1085 cmd = VMW_CMD_RESERVE(dev_priv, submit_len); 1086 cmd2 = (typeof(cmd2))cmd; 1087 cmd3 = (typeof(cmd3))cmd; 1088 cmd4 = (typeof(cmd4))cmd; 1089 if (unlikely(!cmd)) { 1090 ret = -ENOMEM; 1091 goto out_no_fifo; 1092 } 1093 1094 if (has_sm5_context(dev_priv) && metadata->array_size > 0) { 1095 cmd4->header.id = cmd_id; 1096 cmd4->header.size = cmd_len; 1097 cmd4->body.sid = srf->res.id; 1098 cmd4->body.surfaceFlags = metadata->flags; 1099 cmd4->body.format = metadata->format; 1100 cmd4->body.numMipLevels = metadata->mip_levels[0]; 1101 cmd4->body.multisampleCount = metadata->multisample_count; 1102 cmd4->body.multisamplePattern = metadata->multisample_pattern; 1103 cmd4->body.qualityLevel = metadata->quality_level; 1104 cmd4->body.autogenFilter = metadata->autogen_filter; 1105 cmd4->body.size.width = metadata->base_size.width; 1106 cmd4->body.size.height = metadata->base_size.height; 1107 cmd4->body.size.depth = metadata->base_size.depth; 1108 cmd4->body.arraySize = metadata->array_size; 1109 cmd4->body.bufferByteStride = metadata->buffer_byte_stride; 1110 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { 1111 cmd3->header.id = cmd_id; 1112 cmd3->header.size = cmd_len; 1113 cmd3->body.sid = srf->res.id; 1114 cmd3->body.surfaceFlags = metadata->flags; 1115 cmd3->body.format = metadata->format; 1116 cmd3->body.numMipLevels = metadata->mip_levels[0]; 1117 cmd3->body.multisampleCount = metadata->multisample_count; 1118 cmd3->body.multisamplePattern = metadata->multisample_pattern; 1119 cmd3->body.qualityLevel = metadata->quality_level; 1120 cmd3->body.autogenFilter = metadata->autogen_filter; 1121 cmd3->body.size.width = metadata->base_size.width; 1122 cmd3->body.size.height = metadata->base_size.height; 1123 cmd3->body.size.depth = metadata->base_size.depth; 1124 cmd3->body.arraySize = metadata->array_size; 1125 } else if (metadata->array_size > 0) { 1126 cmd2->header.id = cmd_id; 1127 cmd2->header.size = cmd_len; 1128 cmd2->body.sid = srf->res.id; 1129 cmd2->body.surfaceFlags = metadata->flags; 1130 cmd2->body.format = metadata->format; 1131 cmd2->body.numMipLevels = metadata->mip_levels[0]; 1132 cmd2->body.multisampleCount = metadata->multisample_count; 1133 cmd2->body.autogenFilter = metadata->autogen_filter; 1134 cmd2->body.size.width = metadata->base_size.width; 1135 cmd2->body.size.height = metadata->base_size.height; 1136 cmd2->body.size.depth = metadata->base_size.depth; 1137 cmd2->body.arraySize = metadata->array_size; 1138 } else { 1139 cmd->header.id = cmd_id; 1140 cmd->header.size = cmd_len; 1141 cmd->body.sid = srf->res.id; 1142 cmd->body.surfaceFlags = metadata->flags; 1143 cmd->body.format = metadata->format; 1144 cmd->body.numMipLevels = metadata->mip_levels[0]; 1145 cmd->body.multisampleCount = metadata->multisample_count; 1146 cmd->body.autogenFilter = metadata->autogen_filter; 1147 cmd->body.size.width = metadata->base_size.width; 1148 cmd->body.size.height = metadata->base_size.height; 1149 cmd->body.size.depth = metadata->base_size.depth; 1150 } 1151 1152 vmw_cmd_commit(dev_priv, submit_len); 1153 1154 return 0; 1155 1156 out_no_fifo: 1157 vmw_resource_release_id(res); 1158 out_no_id: 1159 vmw_fifo_resource_dec(dev_priv); 1160 return ret; 1161 } 1162 1163 1164 static int vmw_gb_surface_bind(struct vmw_resource *res, 1165 struct ttm_validate_buffer *val_buf) 1166 { 1167 struct vmw_private *dev_priv = res->dev_priv; 1168 struct { 1169 SVGA3dCmdHeader header; 1170 SVGA3dCmdBindGBSurface body; 1171 } *cmd1; 1172 struct { 1173 SVGA3dCmdHeader header; 1174 SVGA3dCmdUpdateGBSurface body; 1175 } *cmd2; 1176 uint32_t submit_size; 1177 struct ttm_buffer_object *bo = val_buf->bo; 1178 1179 BUG_ON(bo->resource->mem_type != VMW_PL_MOB); 1180 1181 submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0); 1182 1183 cmd1 = VMW_CMD_RESERVE(dev_priv, submit_size); 1184 if (unlikely(!cmd1)) 1185 return -ENOMEM; 1186 1187 cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; 1188 cmd1->header.size = sizeof(cmd1->body); 1189 cmd1->body.sid = res->id; 1190 cmd1->body.mobid = bo->resource->start; 1191 if (res->backup_dirty) { 1192 cmd2 = (void *) &cmd1[1]; 1193 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE; 1194 cmd2->header.size = sizeof(cmd2->body); 1195 cmd2->body.sid = res->id; 1196 } 1197 vmw_cmd_commit(dev_priv, submit_size); 1198 1199 if (res->backup->dirty && res->backup_dirty) { 1200 /* We've just made a full upload. Cear dirty regions. */ 1201 vmw_bo_dirty_clear_res(res); 1202 } 1203 1204 res->backup_dirty = false; 1205 1206 return 0; 1207 } 1208 1209 static int vmw_gb_surface_unbind(struct vmw_resource *res, 1210 bool readback, 1211 struct ttm_validate_buffer *val_buf) 1212 { 1213 struct vmw_private *dev_priv = res->dev_priv; 1214 struct ttm_buffer_object *bo = val_buf->bo; 1215 struct vmw_fence_obj *fence; 1216 1217 struct { 1218 SVGA3dCmdHeader header; 1219 SVGA3dCmdReadbackGBSurface body; 1220 } *cmd1; 1221 struct { 1222 SVGA3dCmdHeader header; 1223 SVGA3dCmdInvalidateGBSurface body; 1224 } *cmd2; 1225 struct { 1226 SVGA3dCmdHeader header; 1227 SVGA3dCmdBindGBSurface body; 1228 } *cmd3; 1229 uint32_t submit_size; 1230 uint8_t *cmd; 1231 1232 1233 BUG_ON(bo->resource->mem_type != VMW_PL_MOB); 1234 1235 submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2)); 1236 cmd = VMW_CMD_RESERVE(dev_priv, submit_size); 1237 if (unlikely(!cmd)) 1238 return -ENOMEM; 1239 1240 if (readback) { 1241 cmd1 = (void *) cmd; 1242 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; 1243 cmd1->header.size = sizeof(cmd1->body); 1244 cmd1->body.sid = res->id; 1245 cmd3 = (void *) &cmd1[1]; 1246 } else { 1247 cmd2 = (void *) cmd; 1248 cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE; 1249 cmd2->header.size = sizeof(cmd2->body); 1250 cmd2->body.sid = res->id; 1251 cmd3 = (void *) &cmd2[1]; 1252 } 1253 1254 cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; 1255 cmd3->header.size = sizeof(cmd3->body); 1256 cmd3->body.sid = res->id; 1257 cmd3->body.mobid = SVGA3D_INVALID_ID; 1258 1259 vmw_cmd_commit(dev_priv, submit_size); 1260 1261 /* 1262 * Create a fence object and fence the backup buffer. 1263 */ 1264 1265 (void) vmw_execbuf_fence_commands(NULL, dev_priv, 1266 &fence, NULL); 1267 1268 vmw_bo_fence_single(val_buf->bo, fence); 1269 1270 if (likely(fence != NULL)) 1271 vmw_fence_obj_unreference(&fence); 1272 1273 return 0; 1274 } 1275 1276 static int vmw_gb_surface_destroy(struct vmw_resource *res) 1277 { 1278 struct vmw_private *dev_priv = res->dev_priv; 1279 struct vmw_surface *srf = vmw_res_to_srf(res); 1280 struct { 1281 SVGA3dCmdHeader header; 1282 SVGA3dCmdDestroyGBSurface body; 1283 } *cmd; 1284 1285 if (likely(res->id == -1)) 1286 return 0; 1287 1288 mutex_lock(&dev_priv->binding_mutex); 1289 vmw_view_surface_list_destroy(dev_priv, &srf->view_list); 1290 vmw_binding_res_list_scrub(&res->binding_head); 1291 1292 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); 1293 if (unlikely(!cmd)) { 1294 mutex_unlock(&dev_priv->binding_mutex); 1295 return -ENOMEM; 1296 } 1297 1298 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE; 1299 cmd->header.size = sizeof(cmd->body); 1300 cmd->body.sid = res->id; 1301 vmw_cmd_commit(dev_priv, sizeof(*cmd)); 1302 mutex_unlock(&dev_priv->binding_mutex); 1303 vmw_resource_release_id(res); 1304 vmw_fifo_resource_dec(dev_priv); 1305 1306 return 0; 1307 } 1308 1309 /** 1310 * vmw_gb_surface_define_ioctl - Ioctl function implementing 1311 * the user surface define functionality. 1312 * 1313 * @dev: Pointer to a struct drm_device. 1314 * @data: Pointer to data copied from / to user-space. 1315 * @file_priv: Pointer to a drm file private structure. 1316 */ 1317 int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data, 1318 struct drm_file *file_priv) 1319 { 1320 union drm_vmw_gb_surface_create_arg *arg = 1321 (union drm_vmw_gb_surface_create_arg *)data; 1322 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; 1323 struct drm_vmw_gb_surface_create_ext_req req_ext; 1324 1325 req_ext.base = arg->req; 1326 req_ext.version = drm_vmw_gb_surface_v1; 1327 req_ext.svga3d_flags_upper_32_bits = 0; 1328 req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE; 1329 req_ext.quality_level = SVGA3D_MS_QUALITY_NONE; 1330 req_ext.buffer_byte_stride = 0; 1331 req_ext.must_be_zero = 0; 1332 1333 return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv); 1334 } 1335 1336 /** 1337 * vmw_gb_surface_reference_ioctl - Ioctl function implementing 1338 * the user surface reference functionality. 1339 * 1340 * @dev: Pointer to a struct drm_device. 1341 * @data: Pointer to data copied from / to user-space. 1342 * @file_priv: Pointer to a drm file private structure. 1343 */ 1344 int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, 1345 struct drm_file *file_priv) 1346 { 1347 union drm_vmw_gb_surface_reference_arg *arg = 1348 (union drm_vmw_gb_surface_reference_arg *)data; 1349 struct drm_vmw_surface_arg *req = &arg->req; 1350 struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep; 1351 struct drm_vmw_gb_surface_ref_ext_rep rep_ext; 1352 int ret; 1353 1354 ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv); 1355 1356 if (unlikely(ret != 0)) 1357 return ret; 1358 1359 rep->creq = rep_ext.creq.base; 1360 rep->crep = rep_ext.crep; 1361 1362 return ret; 1363 } 1364 1365 /** 1366 * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing 1367 * the user surface define functionality. 1368 * 1369 * @dev: Pointer to a struct drm_device. 1370 * @data: Pointer to data copied from / to user-space. 1371 * @file_priv: Pointer to a drm file private structure. 1372 */ 1373 int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data, 1374 struct drm_file *file_priv) 1375 { 1376 union drm_vmw_gb_surface_create_ext_arg *arg = 1377 (union drm_vmw_gb_surface_create_ext_arg *)data; 1378 struct drm_vmw_gb_surface_create_ext_req *req = &arg->req; 1379 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; 1380 1381 return vmw_gb_surface_define_internal(dev, req, rep, file_priv); 1382 } 1383 1384 /** 1385 * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing 1386 * the user surface reference functionality. 1387 * 1388 * @dev: Pointer to a struct drm_device. 1389 * @data: Pointer to data copied from / to user-space. 1390 * @file_priv: Pointer to a drm file private structure. 1391 */ 1392 int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data, 1393 struct drm_file *file_priv) 1394 { 1395 union drm_vmw_gb_surface_reference_ext_arg *arg = 1396 (union drm_vmw_gb_surface_reference_ext_arg *)data; 1397 struct drm_vmw_surface_arg *req = &arg->req; 1398 struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep; 1399 1400 return vmw_gb_surface_reference_internal(dev, req, rep, file_priv); 1401 } 1402 1403 /** 1404 * vmw_gb_surface_define_internal - Ioctl function implementing 1405 * the user surface define functionality. 1406 * 1407 * @dev: Pointer to a struct drm_device. 1408 * @req: Request argument from user-space. 1409 * @rep: Response argument to user-space. 1410 * @file_priv: Pointer to a drm file private structure. 1411 */ 1412 static int 1413 vmw_gb_surface_define_internal(struct drm_device *dev, 1414 struct drm_vmw_gb_surface_create_ext_req *req, 1415 struct drm_vmw_gb_surface_create_rep *rep, 1416 struct drm_file *file_priv) 1417 { 1418 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 1419 struct vmw_private *dev_priv = vmw_priv(dev); 1420 struct vmw_user_surface *user_srf; 1421 struct vmw_surface_metadata metadata = {0}; 1422 struct vmw_surface *srf; 1423 struct vmw_resource *res; 1424 struct vmw_resource *tmp; 1425 int ret = 0; 1426 uint32_t backup_handle = 0; 1427 SVGA3dSurfaceAllFlags svga3d_flags_64 = 1428 SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits, 1429 req->base.svga3d_flags); 1430 1431 /* array_size must be null for non-GL3 host. */ 1432 if (req->base.array_size > 0 && !has_sm4_context(dev_priv)) { 1433 VMW_DEBUG_USER("SM4 surface not supported.\n"); 1434 return -EINVAL; 1435 } 1436 1437 if (!has_sm4_1_context(dev_priv)) { 1438 if (req->svga3d_flags_upper_32_bits != 0) 1439 ret = -EINVAL; 1440 1441 if (req->base.multisample_count != 0) 1442 ret = -EINVAL; 1443 1444 if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE) 1445 ret = -EINVAL; 1446 1447 if (req->quality_level != SVGA3D_MS_QUALITY_NONE) 1448 ret = -EINVAL; 1449 1450 if (ret) { 1451 VMW_DEBUG_USER("SM4.1 surface not supported.\n"); 1452 return ret; 1453 } 1454 } 1455 1456 if (req->buffer_byte_stride > 0 && !has_sm5_context(dev_priv)) { 1457 VMW_DEBUG_USER("SM5 surface not supported.\n"); 1458 return -EINVAL; 1459 } 1460 1461 if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) && 1462 req->base.multisample_count == 0) { 1463 VMW_DEBUG_USER("Invalid sample count.\n"); 1464 return -EINVAL; 1465 } 1466 1467 if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS) { 1468 VMW_DEBUG_USER("Invalid mip level.\n"); 1469 return -EINVAL; 1470 } 1471 1472 metadata.flags = svga3d_flags_64; 1473 metadata.format = req->base.format; 1474 metadata.mip_levels[0] = req->base.mip_levels; 1475 metadata.multisample_count = req->base.multisample_count; 1476 metadata.multisample_pattern = req->multisample_pattern; 1477 metadata.quality_level = req->quality_level; 1478 metadata.array_size = req->base.array_size; 1479 metadata.buffer_byte_stride = req->buffer_byte_stride; 1480 metadata.num_sizes = 1; 1481 metadata.base_size = req->base.base_size; 1482 metadata.scanout = req->base.drm_surface_flags & 1483 drm_vmw_surface_flag_scanout; 1484 1485 /* Define a surface based on the parameters. */ 1486 ret = vmw_gb_surface_define(dev_priv, &metadata, &srf); 1487 if (ret != 0) { 1488 VMW_DEBUG_USER("Failed to define surface.\n"); 1489 return ret; 1490 } 1491 1492 user_srf = container_of(srf, struct vmw_user_surface, srf); 1493 if (drm_is_primary_client(file_priv)) 1494 user_srf->master = drm_file_get_master(file_priv); 1495 1496 res = &user_srf->srf.res; 1497 1498 if (req->base.buffer_handle != SVGA3D_INVALID_ID) { 1499 ret = vmw_user_bo_lookup(file_priv, req->base.buffer_handle, 1500 &res->backup); 1501 if (ret == 0) { 1502 if (res->backup->base.base.size < res->backup_size) { 1503 VMW_DEBUG_USER("Surface backup buffer too small.\n"); 1504 vmw_bo_unreference(&res->backup); 1505 ret = -EINVAL; 1506 goto out_unlock; 1507 } else { 1508 backup_handle = req->base.buffer_handle; 1509 } 1510 } 1511 } else if (req->base.drm_surface_flags & 1512 (drm_vmw_surface_flag_create_buffer | 1513 drm_vmw_surface_flag_coherent)) { 1514 ret = vmw_gem_object_create_with_handle(dev_priv, file_priv, 1515 res->backup_size, 1516 &backup_handle, 1517 &res->backup); 1518 if (ret == 0) 1519 vmw_bo_reference(res->backup); 1520 } 1521 1522 if (unlikely(ret != 0)) { 1523 vmw_resource_unreference(&res); 1524 goto out_unlock; 1525 } 1526 1527 if (req->base.drm_surface_flags & drm_vmw_surface_flag_coherent) { 1528 struct vmw_buffer_object *backup = res->backup; 1529 1530 ttm_bo_reserve(&backup->base, false, false, NULL); 1531 if (!res->func->dirty_alloc) 1532 ret = -EINVAL; 1533 if (!ret) 1534 ret = vmw_bo_dirty_add(backup); 1535 if (!ret) { 1536 res->coherent = true; 1537 ret = res->func->dirty_alloc(res); 1538 } 1539 ttm_bo_unreserve(&backup->base); 1540 if (ret) { 1541 vmw_resource_unreference(&res); 1542 goto out_unlock; 1543 } 1544 1545 } 1546 1547 tmp = vmw_resource_reference(res); 1548 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, 1549 req->base.drm_surface_flags & 1550 drm_vmw_surface_flag_shareable, 1551 VMW_RES_SURFACE, 1552 &vmw_user_surface_base_release); 1553 1554 if (unlikely(ret != 0)) { 1555 vmw_resource_unreference(&tmp); 1556 vmw_resource_unreference(&res); 1557 goto out_unlock; 1558 } 1559 1560 rep->handle = user_srf->prime.base.handle; 1561 rep->backup_size = res->backup_size; 1562 if (res->backup) { 1563 rep->buffer_map_handle = 1564 drm_vma_node_offset_addr(&res->backup->base.base.vma_node); 1565 rep->buffer_size = res->backup->base.base.size; 1566 rep->buffer_handle = backup_handle; 1567 if (user_srf->prime.base.shareable) 1568 drm_gem_object_get(&res->backup->base.base); 1569 } else { 1570 rep->buffer_map_handle = 0; 1571 rep->buffer_size = 0; 1572 rep->buffer_handle = SVGA3D_INVALID_ID; 1573 } 1574 vmw_resource_unreference(&res); 1575 1576 out_unlock: 1577 return ret; 1578 } 1579 1580 /** 1581 * vmw_gb_surface_reference_internal - Ioctl function implementing 1582 * the user surface reference functionality. 1583 * 1584 * @dev: Pointer to a struct drm_device. 1585 * @req: Pointer to user-space request surface arg. 1586 * @rep: Pointer to response to user-space. 1587 * @file_priv: Pointer to a drm file private structure. 1588 */ 1589 static int 1590 vmw_gb_surface_reference_internal(struct drm_device *dev, 1591 struct drm_vmw_surface_arg *req, 1592 struct drm_vmw_gb_surface_ref_ext_rep *rep, 1593 struct drm_file *file_priv) 1594 { 1595 struct vmw_private *dev_priv = vmw_priv(dev); 1596 struct vmw_surface *srf; 1597 struct vmw_user_surface *user_srf; 1598 struct vmw_surface_metadata *metadata; 1599 struct ttm_base_object *base; 1600 u32 backup_handle; 1601 int ret; 1602 1603 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, 1604 req->handle_type, &base); 1605 if (unlikely(ret != 0)) 1606 return ret; 1607 1608 user_srf = container_of(base, struct vmw_user_surface, prime.base); 1609 srf = &user_srf->srf; 1610 if (!srf->res.backup) { 1611 DRM_ERROR("Shared GB surface is missing a backup buffer.\n"); 1612 goto out_bad_resource; 1613 } 1614 metadata = &srf->metadata; 1615 1616 mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */ 1617 ret = drm_gem_handle_create(file_priv, &srf->res.backup->base.base, 1618 &backup_handle); 1619 mutex_unlock(&dev_priv->cmdbuf_mutex); 1620 if (ret != 0) { 1621 drm_err(dev, "Wasn't able to create a backing handle for surface sid = %u.\n", 1622 req->sid); 1623 goto out_bad_resource; 1624 } 1625 1626 rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(metadata->flags); 1627 rep->creq.base.format = metadata->format; 1628 rep->creq.base.mip_levels = metadata->mip_levels[0]; 1629 rep->creq.base.drm_surface_flags = 0; 1630 rep->creq.base.multisample_count = metadata->multisample_count; 1631 rep->creq.base.autogen_filter = metadata->autogen_filter; 1632 rep->creq.base.array_size = metadata->array_size; 1633 rep->creq.base.buffer_handle = backup_handle; 1634 rep->creq.base.base_size = metadata->base_size; 1635 rep->crep.handle = user_srf->prime.base.handle; 1636 rep->crep.backup_size = srf->res.backup_size; 1637 rep->crep.buffer_handle = backup_handle; 1638 rep->crep.buffer_map_handle = 1639 drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node); 1640 rep->crep.buffer_size = srf->res.backup->base.base.size; 1641 1642 rep->creq.version = drm_vmw_gb_surface_v1; 1643 rep->creq.svga3d_flags_upper_32_bits = 1644 SVGA3D_FLAGS_UPPER_32(metadata->flags); 1645 rep->creq.multisample_pattern = metadata->multisample_pattern; 1646 rep->creq.quality_level = metadata->quality_level; 1647 rep->creq.must_be_zero = 0; 1648 1649 out_bad_resource: 1650 ttm_base_object_unref(&base); 1651 1652 return ret; 1653 } 1654 1655 /** 1656 * vmw_subres_dirty_add - Add a dirty region to a subresource 1657 * @dirty: The surfaces's dirty tracker. 1658 * @loc_start: The location corresponding to the start of the region. 1659 * @loc_end: The location corresponding to the end of the region. 1660 * 1661 * As we are assuming that @loc_start and @loc_end represent a sequential 1662 * range of backing store memory, if the region spans multiple lines then 1663 * regardless of the x coordinate, the full lines are dirtied. 1664 * Correspondingly if the region spans multiple z slices, then full rather 1665 * than partial z slices are dirtied. 1666 */ 1667 static void vmw_subres_dirty_add(struct vmw_surface_dirty *dirty, 1668 const struct vmw_surface_loc *loc_start, 1669 const struct vmw_surface_loc *loc_end) 1670 { 1671 const struct vmw_surface_cache *cache = &dirty->cache; 1672 SVGA3dBox *box = &dirty->boxes[loc_start->sub_resource]; 1673 u32 mip = loc_start->sub_resource % cache->num_mip_levels; 1674 const struct drm_vmw_size *size = &cache->mip[mip].size; 1675 u32 box_c2 = box->z + box->d; 1676 1677 if (WARN_ON(loc_start->sub_resource >= dirty->num_subres)) 1678 return; 1679 1680 if (box->d == 0 || box->z > loc_start->z) 1681 box->z = loc_start->z; 1682 if (box_c2 < loc_end->z) 1683 box->d = loc_end->z - box->z; 1684 1685 if (loc_start->z + 1 == loc_end->z) { 1686 box_c2 = box->y + box->h; 1687 if (box->h == 0 || box->y > loc_start->y) 1688 box->y = loc_start->y; 1689 if (box_c2 < loc_end->y) 1690 box->h = loc_end->y - box->y; 1691 1692 if (loc_start->y + 1 == loc_end->y) { 1693 box_c2 = box->x + box->w; 1694 if (box->w == 0 || box->x > loc_start->x) 1695 box->x = loc_start->x; 1696 if (box_c2 < loc_end->x) 1697 box->w = loc_end->x - box->x; 1698 } else { 1699 box->x = 0; 1700 box->w = size->width; 1701 } 1702 } else { 1703 box->y = 0; 1704 box->h = size->height; 1705 box->x = 0; 1706 box->w = size->width; 1707 } 1708 } 1709 1710 /** 1711 * vmw_subres_dirty_full - Mark a full subresource as dirty 1712 * @dirty: The surface's dirty tracker. 1713 * @subres: The subresource 1714 */ 1715 static void vmw_subres_dirty_full(struct vmw_surface_dirty *dirty, u32 subres) 1716 { 1717 const struct vmw_surface_cache *cache = &dirty->cache; 1718 u32 mip = subres % cache->num_mip_levels; 1719 const struct drm_vmw_size *size = &cache->mip[mip].size; 1720 SVGA3dBox *box = &dirty->boxes[subres]; 1721 1722 box->x = 0; 1723 box->y = 0; 1724 box->z = 0; 1725 box->w = size->width; 1726 box->h = size->height; 1727 box->d = size->depth; 1728 } 1729 1730 /* 1731 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for texture 1732 * surfaces. 1733 */ 1734 static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res, 1735 size_t start, size_t end) 1736 { 1737 struct vmw_surface_dirty *dirty = 1738 (struct vmw_surface_dirty *) res->dirty; 1739 size_t backup_end = res->backup_offset + res->backup_size; 1740 struct vmw_surface_loc loc1, loc2; 1741 const struct vmw_surface_cache *cache; 1742 1743 start = max_t(size_t, start, res->backup_offset) - res->backup_offset; 1744 end = min(end, backup_end) - res->backup_offset; 1745 cache = &dirty->cache; 1746 vmw_surface_get_loc(cache, &loc1, start); 1747 vmw_surface_get_loc(cache, &loc2, end - 1); 1748 vmw_surface_inc_loc(cache, &loc2); 1749 1750 if (loc1.sheet != loc2.sheet) { 1751 u32 sub_res; 1752 1753 /* 1754 * Multiple multisample sheets. To do this in an optimized 1755 * fashion, compute the dirty region for each sheet and the 1756 * resulting union. Since this is not a common case, just dirty 1757 * the whole surface. 1758 */ 1759 for (sub_res = 0; sub_res < dirty->num_subres; ++sub_res) 1760 vmw_subres_dirty_full(dirty, sub_res); 1761 return; 1762 } 1763 if (loc1.sub_resource + 1 == loc2.sub_resource) { 1764 /* Dirty range covers a single sub-resource */ 1765 vmw_subres_dirty_add(dirty, &loc1, &loc2); 1766 } else { 1767 /* Dirty range covers multiple sub-resources */ 1768 struct vmw_surface_loc loc_min, loc_max; 1769 u32 sub_res; 1770 1771 vmw_surface_max_loc(cache, loc1.sub_resource, &loc_max); 1772 vmw_subres_dirty_add(dirty, &loc1, &loc_max); 1773 vmw_surface_min_loc(cache, loc2.sub_resource - 1, &loc_min); 1774 vmw_subres_dirty_add(dirty, &loc_min, &loc2); 1775 for (sub_res = loc1.sub_resource + 1; 1776 sub_res < loc2.sub_resource - 1; ++sub_res) 1777 vmw_subres_dirty_full(dirty, sub_res); 1778 } 1779 } 1780 1781 /* 1782 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for buffer 1783 * surfaces. 1784 */ 1785 static void vmw_surface_buf_dirty_range_add(struct vmw_resource *res, 1786 size_t start, size_t end) 1787 { 1788 struct vmw_surface_dirty *dirty = 1789 (struct vmw_surface_dirty *) res->dirty; 1790 const struct vmw_surface_cache *cache = &dirty->cache; 1791 size_t backup_end = res->backup_offset + cache->mip_chain_bytes; 1792 SVGA3dBox *box = &dirty->boxes[0]; 1793 u32 box_c2; 1794 1795 box->h = box->d = 1; 1796 start = max_t(size_t, start, res->backup_offset) - res->backup_offset; 1797 end = min(end, backup_end) - res->backup_offset; 1798 box_c2 = box->x + box->w; 1799 if (box->w == 0 || box->x > start) 1800 box->x = start; 1801 if (box_c2 < end) 1802 box->w = end - box->x; 1803 } 1804 1805 /* 1806 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for surfaces 1807 */ 1808 static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, 1809 size_t end) 1810 { 1811 struct vmw_surface *srf = vmw_res_to_srf(res); 1812 1813 if (WARN_ON(end <= res->backup_offset || 1814 start >= res->backup_offset + res->backup_size)) 1815 return; 1816 1817 if (srf->metadata.format == SVGA3D_BUFFER) 1818 vmw_surface_buf_dirty_range_add(res, start, end); 1819 else 1820 vmw_surface_tex_dirty_range_add(res, start, end); 1821 } 1822 1823 /* 1824 * vmw_surface_dirty_sync - The surface's dirty_sync callback. 1825 */ 1826 static int vmw_surface_dirty_sync(struct vmw_resource *res) 1827 { 1828 struct vmw_private *dev_priv = res->dev_priv; 1829 u32 i, num_dirty; 1830 struct vmw_surface_dirty *dirty = 1831 (struct vmw_surface_dirty *) res->dirty; 1832 size_t alloc_size; 1833 const struct vmw_surface_cache *cache = &dirty->cache; 1834 struct { 1835 SVGA3dCmdHeader header; 1836 SVGA3dCmdDXUpdateSubResource body; 1837 } *cmd1; 1838 struct { 1839 SVGA3dCmdHeader header; 1840 SVGA3dCmdUpdateGBImage body; 1841 } *cmd2; 1842 void *cmd; 1843 1844 num_dirty = 0; 1845 for (i = 0; i < dirty->num_subres; ++i) { 1846 const SVGA3dBox *box = &dirty->boxes[i]; 1847 1848 if (box->d) 1849 num_dirty++; 1850 } 1851 1852 if (!num_dirty) 1853 goto out; 1854 1855 alloc_size = num_dirty * ((has_sm4_context(dev_priv)) ? sizeof(*cmd1) : sizeof(*cmd2)); 1856 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); 1857 if (!cmd) 1858 return -ENOMEM; 1859 1860 cmd1 = cmd; 1861 cmd2 = cmd; 1862 1863 for (i = 0; i < dirty->num_subres; ++i) { 1864 const SVGA3dBox *box = &dirty->boxes[i]; 1865 1866 if (!box->d) 1867 continue; 1868 1869 /* 1870 * DX_UPDATE_SUBRESOURCE is aware of array surfaces. 1871 * UPDATE_GB_IMAGE is not. 1872 */ 1873 if (has_sm4_context(dev_priv)) { 1874 cmd1->header.id = SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE; 1875 cmd1->header.size = sizeof(cmd1->body); 1876 cmd1->body.sid = res->id; 1877 cmd1->body.subResource = i; 1878 cmd1->body.box = *box; 1879 cmd1++; 1880 } else { 1881 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; 1882 cmd2->header.size = sizeof(cmd2->body); 1883 cmd2->body.image.sid = res->id; 1884 cmd2->body.image.face = i / cache->num_mip_levels; 1885 cmd2->body.image.mipmap = i - 1886 (cache->num_mip_levels * cmd2->body.image.face); 1887 cmd2->body.box = *box; 1888 cmd2++; 1889 } 1890 1891 } 1892 vmw_cmd_commit(dev_priv, alloc_size); 1893 out: 1894 memset(&dirty->boxes[0], 0, sizeof(dirty->boxes[0]) * 1895 dirty->num_subres); 1896 1897 return 0; 1898 } 1899 1900 /* 1901 * vmw_surface_dirty_alloc - The surface's dirty_alloc callback. 1902 */ 1903 static int vmw_surface_dirty_alloc(struct vmw_resource *res) 1904 { 1905 struct vmw_surface *srf = vmw_res_to_srf(res); 1906 const struct vmw_surface_metadata *metadata = &srf->metadata; 1907 struct vmw_surface_dirty *dirty; 1908 u32 num_layers = 1; 1909 u32 num_mip; 1910 u32 num_subres; 1911 u32 num_samples; 1912 size_t dirty_size; 1913 int ret; 1914 1915 if (metadata->array_size) 1916 num_layers = metadata->array_size; 1917 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) 1918 num_layers *= SVGA3D_MAX_SURFACE_FACES; 1919 1920 num_mip = metadata->mip_levels[0]; 1921 if (!num_mip) 1922 num_mip = 1; 1923 1924 num_subres = num_layers * num_mip; 1925 dirty_size = struct_size(dirty, boxes, num_subres); 1926 1927 dirty = kvzalloc(dirty_size, GFP_KERNEL); 1928 if (!dirty) { 1929 ret = -ENOMEM; 1930 goto out_no_dirty; 1931 } 1932 1933 num_samples = max_t(u32, 1, metadata->multisample_count); 1934 ret = vmw_surface_setup_cache(&metadata->base_size, metadata->format, 1935 num_mip, num_layers, num_samples, 1936 &dirty->cache); 1937 if (ret) 1938 goto out_no_cache; 1939 1940 dirty->num_subres = num_subres; 1941 res->dirty = (struct vmw_resource_dirty *) dirty; 1942 1943 return 0; 1944 1945 out_no_cache: 1946 kvfree(dirty); 1947 out_no_dirty: 1948 return ret; 1949 } 1950 1951 /* 1952 * vmw_surface_dirty_free - The surface's dirty_free callback 1953 */ 1954 static void vmw_surface_dirty_free(struct vmw_resource *res) 1955 { 1956 struct vmw_surface_dirty *dirty = 1957 (struct vmw_surface_dirty *) res->dirty; 1958 1959 kvfree(dirty); 1960 res->dirty = NULL; 1961 } 1962 1963 /* 1964 * vmw_surface_clean - The surface's clean callback 1965 */ 1966 static int vmw_surface_clean(struct vmw_resource *res) 1967 { 1968 struct vmw_private *dev_priv = res->dev_priv; 1969 size_t alloc_size; 1970 struct { 1971 SVGA3dCmdHeader header; 1972 SVGA3dCmdReadbackGBSurface body; 1973 } *cmd; 1974 1975 alloc_size = sizeof(*cmd); 1976 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); 1977 if (!cmd) 1978 return -ENOMEM; 1979 1980 cmd->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; 1981 cmd->header.size = sizeof(cmd->body); 1982 cmd->body.sid = res->id; 1983 vmw_cmd_commit(dev_priv, alloc_size); 1984 1985 return 0; 1986 } 1987 1988 /* 1989 * vmw_gb_surface_define - Define a private GB surface 1990 * 1991 * @dev_priv: Pointer to a device private. 1992 * @metadata: Metadata representing the surface to create. 1993 * @user_srf_out: allocated user_srf. Set to NULL on failure. 1994 * 1995 * GB surfaces allocated by this function will not have a user mode handle, and 1996 * thus will only be visible to vmwgfx. For optimization reasons the 1997 * surface may later be given a user mode handle by another function to make 1998 * it available to user mode drivers. 1999 */ 2000 int vmw_gb_surface_define(struct vmw_private *dev_priv, 2001 const struct vmw_surface_metadata *req, 2002 struct vmw_surface **srf_out) 2003 { 2004 struct vmw_surface_metadata *metadata; 2005 struct vmw_user_surface *user_srf; 2006 struct vmw_surface *srf; 2007 u32 sample_count = 1; 2008 u32 num_layers = 1; 2009 int ret; 2010 2011 *srf_out = NULL; 2012 2013 if (req->scanout) { 2014 if (!vmw_surface_is_screen_target_format(req->format)) { 2015 VMW_DEBUG_USER("Invalid Screen Target surface format."); 2016 return -EINVAL; 2017 } 2018 2019 if (req->base_size.width > dev_priv->texture_max_width || 2020 req->base_size.height > dev_priv->texture_max_height) { 2021 VMW_DEBUG_USER("%ux%u\n, exceed max surface size %ux%u", 2022 req->base_size.width, 2023 req->base_size.height, 2024 dev_priv->texture_max_width, 2025 dev_priv->texture_max_height); 2026 return -EINVAL; 2027 } 2028 } else { 2029 const SVGA3dSurfaceDesc *desc = 2030 vmw_surface_get_desc(req->format); 2031 2032 if (desc->blockDesc == SVGA3DBLOCKDESC_NONE) { 2033 VMW_DEBUG_USER("Invalid surface format.\n"); 2034 return -EINVAL; 2035 } 2036 } 2037 2038 if (req->autogen_filter != SVGA3D_TEX_FILTER_NONE) 2039 return -EINVAL; 2040 2041 if (req->num_sizes != 1) 2042 return -EINVAL; 2043 2044 if (req->sizes != NULL) 2045 return -EINVAL; 2046 2047 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); 2048 if (unlikely(!user_srf)) { 2049 ret = -ENOMEM; 2050 goto out_unlock; 2051 } 2052 2053 *srf_out = &user_srf->srf; 2054 user_srf->prime.base.shareable = false; 2055 user_srf->prime.base.tfile = NULL; 2056 2057 srf = &user_srf->srf; 2058 srf->metadata = *req; 2059 srf->offsets = NULL; 2060 2061 metadata = &srf->metadata; 2062 2063 if (metadata->array_size) 2064 num_layers = req->array_size; 2065 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) 2066 num_layers = SVGA3D_MAX_SURFACE_FACES; 2067 2068 if (metadata->flags & SVGA3D_SURFACE_MULTISAMPLE) 2069 sample_count = metadata->multisample_count; 2070 2071 srf->res.backup_size = 2072 vmw_surface_get_serialized_size_extended( 2073 metadata->format, 2074 metadata->base_size, 2075 metadata->mip_levels[0], 2076 num_layers, 2077 sample_count); 2078 2079 if (metadata->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT) 2080 srf->res.backup_size += sizeof(SVGA3dDXSOState); 2081 2082 /* 2083 * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with 2084 * size greater than STDU max width/height. This is really a workaround 2085 * to support creation of big framebuffer requested by some user-space 2086 * for whole topology. That big framebuffer won't really be used for 2087 * binding with screen target as during prepare_fb a separate surface is 2088 * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag. 2089 */ 2090 if (dev_priv->active_display_unit == vmw_du_screen_target && 2091 metadata->scanout && 2092 metadata->base_size.width <= dev_priv->stdu_max_width && 2093 metadata->base_size.height <= dev_priv->stdu_max_height) 2094 metadata->flags |= SVGA3D_SURFACE_SCREENTARGET; 2095 2096 /* 2097 * From this point, the generic resource management functions 2098 * destroy the object on failure. 2099 */ 2100 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); 2101 2102 return ret; 2103 2104 out_unlock: 2105 return ret; 2106 } 2107