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 *p_base = NULL; 687 vmw_resource_unreference(&res); 688 } 689 690 /** 691 * vmw_surface_destroy_ioctl - Ioctl function implementing 692 * the user surface destroy functionality. 693 * 694 * @dev: Pointer to a struct drm_device. 695 * @data: Pointer to data copied from / to user-space. 696 * @file_priv: Pointer to a drm file private structure. 697 */ 698 int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, 699 struct drm_file *file_priv) 700 { 701 struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; 702 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 703 704 return ttm_ref_object_base_unref(tfile, arg->sid); 705 } 706 707 /** 708 * vmw_surface_define_ioctl - Ioctl function implementing 709 * the user surface define functionality. 710 * 711 * @dev: Pointer to a struct drm_device. 712 * @data: Pointer to data copied from / to user-space. 713 * @file_priv: Pointer to a drm file private structure. 714 */ 715 int vmw_surface_define_ioctl(struct drm_device *dev, void *data, 716 struct drm_file *file_priv) 717 { 718 struct vmw_private *dev_priv = vmw_priv(dev); 719 struct vmw_user_surface *user_srf; 720 struct vmw_surface *srf; 721 struct vmw_surface_metadata *metadata; 722 struct vmw_resource *res; 723 struct vmw_resource *tmp; 724 union drm_vmw_surface_create_arg *arg = 725 (union drm_vmw_surface_create_arg *)data; 726 struct drm_vmw_surface_create_req *req = &arg->req; 727 struct drm_vmw_surface_arg *rep = &arg->rep; 728 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 729 int ret; 730 int i, j; 731 uint32_t cur_bo_offset; 732 struct drm_vmw_size *cur_size; 733 struct vmw_surface_offset *cur_offset; 734 uint32_t num_sizes; 735 const SVGA3dSurfaceDesc *desc; 736 737 num_sizes = 0; 738 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { 739 if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS) 740 return -EINVAL; 741 num_sizes += req->mip_levels[i]; 742 } 743 744 if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS || 745 num_sizes == 0) 746 return -EINVAL; 747 748 desc = vmw_surface_get_desc(req->format); 749 if (unlikely(desc->blockDesc == SVGA3DBLOCKDESC_NONE)) { 750 VMW_DEBUG_USER("Invalid format %d for surface creation.\n", 751 req->format); 752 return -EINVAL; 753 } 754 755 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); 756 if (unlikely(!user_srf)) { 757 ret = -ENOMEM; 758 goto out_unlock; 759 } 760 761 srf = &user_srf->srf; 762 metadata = &srf->metadata; 763 res = &srf->res; 764 765 /* Driver internally stores as 64-bit flags */ 766 metadata->flags = (SVGA3dSurfaceAllFlags)req->flags; 767 metadata->format = req->format; 768 metadata->scanout = req->scanout; 769 770 memcpy(metadata->mip_levels, req->mip_levels, 771 sizeof(metadata->mip_levels)); 772 metadata->num_sizes = num_sizes; 773 metadata->sizes = 774 memdup_user((struct drm_vmw_size __user *)(unsigned long) 775 req->size_addr, 776 sizeof(*metadata->sizes) * metadata->num_sizes); 777 if (IS_ERR(metadata->sizes)) { 778 ret = PTR_ERR(metadata->sizes); 779 goto out_no_sizes; 780 } 781 srf->offsets = kmalloc_array(metadata->num_sizes, sizeof(*srf->offsets), 782 GFP_KERNEL); 783 if (unlikely(!srf->offsets)) { 784 ret = -ENOMEM; 785 goto out_no_offsets; 786 } 787 788 metadata->base_size = *srf->metadata.sizes; 789 metadata->autogen_filter = SVGA3D_TEX_FILTER_NONE; 790 metadata->multisample_count = 0; 791 metadata->multisample_pattern = SVGA3D_MS_PATTERN_NONE; 792 metadata->quality_level = SVGA3D_MS_QUALITY_NONE; 793 794 cur_bo_offset = 0; 795 cur_offset = srf->offsets; 796 cur_size = metadata->sizes; 797 798 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { 799 for (j = 0; j < metadata->mip_levels[i]; ++j) { 800 uint32_t stride = vmw_surface_calculate_pitch( 801 desc, cur_size); 802 803 cur_offset->face = i; 804 cur_offset->mip = j; 805 cur_offset->bo_offset = cur_bo_offset; 806 cur_bo_offset += vmw_surface_get_image_buffer_size 807 (desc, cur_size, stride); 808 ++cur_offset; 809 ++cur_size; 810 } 811 } 812 res->backup_size = cur_bo_offset; 813 if (metadata->scanout && 814 metadata->num_sizes == 1 && 815 metadata->sizes[0].width == 64 && 816 metadata->sizes[0].height == 64 && 817 metadata->format == SVGA3D_A8R8G8B8) { 818 819 srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL); 820 if (!srf->snooper.image) { 821 DRM_ERROR("Failed to allocate cursor_image\n"); 822 ret = -ENOMEM; 823 goto out_no_copy; 824 } 825 } else { 826 srf->snooper.image = NULL; 827 } 828 829 user_srf->prime.base.shareable = false; 830 user_srf->prime.base.tfile = NULL; 831 if (drm_is_primary_client(file_priv)) 832 user_srf->master = drm_file_get_master(file_priv); 833 834 /** 835 * From this point, the generic resource management functions 836 * destroy the object on failure. 837 */ 838 839 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); 840 if (unlikely(ret != 0)) 841 goto out_unlock; 842 843 /* 844 * A gb-aware client referencing a shared surface will 845 * expect a backup buffer to be present. 846 */ 847 if (dev_priv->has_mob && req->shareable) { 848 uint32_t backup_handle; 849 850 ret = vmw_gem_object_create_with_handle(dev_priv, 851 file_priv, 852 res->backup_size, 853 &backup_handle, 854 &res->backup); 855 if (unlikely(ret != 0)) { 856 vmw_resource_unreference(&res); 857 goto out_unlock; 858 } 859 vmw_bo_reference(res->backup); 860 } 861 862 tmp = vmw_resource_reference(&srf->res); 863 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, 864 req->shareable, VMW_RES_SURFACE, 865 &vmw_user_surface_base_release); 866 867 if (unlikely(ret != 0)) { 868 vmw_resource_unreference(&tmp); 869 vmw_resource_unreference(&res); 870 goto out_unlock; 871 } 872 873 rep->sid = user_srf->prime.base.handle; 874 vmw_resource_unreference(&res); 875 876 return 0; 877 out_no_copy: 878 kfree(srf->offsets); 879 out_no_offsets: 880 kfree(metadata->sizes); 881 out_no_sizes: 882 ttm_prime_object_kfree(user_srf, prime); 883 out_unlock: 884 return ret; 885 } 886 887 888 static int 889 vmw_surface_handle_reference(struct vmw_private *dev_priv, 890 struct drm_file *file_priv, 891 uint32_t u_handle, 892 enum drm_vmw_handle_type handle_type, 893 struct ttm_base_object **base_p) 894 { 895 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 896 struct vmw_user_surface *user_srf; 897 uint32_t handle; 898 struct ttm_base_object *base; 899 int ret; 900 901 if (handle_type == DRM_VMW_HANDLE_PRIME) { 902 ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle); 903 if (unlikely(ret != 0)) 904 return ret; 905 } else { 906 handle = u_handle; 907 } 908 909 ret = -EINVAL; 910 base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle); 911 if (unlikely(!base)) { 912 VMW_DEBUG_USER("Could not find surface to reference.\n"); 913 goto out_no_lookup; 914 } 915 916 if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) { 917 VMW_DEBUG_USER("Referenced object is not a surface.\n"); 918 goto out_bad_resource; 919 } 920 if (handle_type != DRM_VMW_HANDLE_PRIME) { 921 bool require_exist = false; 922 923 user_srf = container_of(base, struct vmw_user_surface, 924 prime.base); 925 926 /* Error out if we are unauthenticated primary */ 927 if (drm_is_primary_client(file_priv) && 928 !file_priv->authenticated) { 929 ret = -EACCES; 930 goto out_bad_resource; 931 } 932 933 /* 934 * Make sure the surface creator has the same 935 * authenticating master, or is already registered with us. 936 */ 937 if (drm_is_primary_client(file_priv) && 938 user_srf->master != file_priv->master) 939 require_exist = true; 940 941 if (unlikely(drm_is_render_client(file_priv))) 942 require_exist = true; 943 944 ret = ttm_ref_object_add(tfile, base, NULL, require_exist); 945 if (unlikely(ret != 0)) { 946 DRM_ERROR("Could not add a reference to a surface.\n"); 947 goto out_bad_resource; 948 } 949 } 950 951 *base_p = base; 952 return 0; 953 954 out_bad_resource: 955 ttm_base_object_unref(&base); 956 out_no_lookup: 957 if (handle_type == DRM_VMW_HANDLE_PRIME) 958 (void) ttm_ref_object_base_unref(tfile, handle); 959 960 return ret; 961 } 962 963 /** 964 * vmw_surface_reference_ioctl - Ioctl function implementing 965 * the user surface reference functionality. 966 * 967 * @dev: Pointer to a struct drm_device. 968 * @data: Pointer to data copied from / to user-space. 969 * @file_priv: Pointer to a drm file private structure. 970 */ 971 int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, 972 struct drm_file *file_priv) 973 { 974 struct vmw_private *dev_priv = vmw_priv(dev); 975 union drm_vmw_surface_reference_arg *arg = 976 (union drm_vmw_surface_reference_arg *)data; 977 struct drm_vmw_surface_arg *req = &arg->req; 978 struct drm_vmw_surface_create_req *rep = &arg->rep; 979 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 980 struct vmw_surface *srf; 981 struct vmw_user_surface *user_srf; 982 struct drm_vmw_size __user *user_sizes; 983 struct ttm_base_object *base; 984 int ret; 985 986 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, 987 req->handle_type, &base); 988 if (unlikely(ret != 0)) 989 return ret; 990 991 user_srf = container_of(base, struct vmw_user_surface, prime.base); 992 srf = &user_srf->srf; 993 994 /* Downcast of flags when sending back to user space */ 995 rep->flags = (uint32_t)srf->metadata.flags; 996 rep->format = srf->metadata.format; 997 memcpy(rep->mip_levels, srf->metadata.mip_levels, 998 sizeof(srf->metadata.mip_levels)); 999 user_sizes = (struct drm_vmw_size __user *)(unsigned long) 1000 rep->size_addr; 1001 1002 if (user_sizes) 1003 ret = copy_to_user(user_sizes, &srf->metadata.base_size, 1004 sizeof(srf->metadata.base_size)); 1005 if (unlikely(ret != 0)) { 1006 VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes, 1007 srf->metadata.num_sizes); 1008 ttm_ref_object_base_unref(tfile, base->handle); 1009 ret = -EFAULT; 1010 } 1011 1012 ttm_base_object_unref(&base); 1013 1014 return ret; 1015 } 1016 1017 /** 1018 * vmw_gb_surface_create - Encode a surface_define command. 1019 * 1020 * @res: Pointer to a struct vmw_resource embedded in a struct 1021 * vmw_surface. 1022 */ 1023 static int vmw_gb_surface_create(struct vmw_resource *res) 1024 { 1025 struct vmw_private *dev_priv = res->dev_priv; 1026 struct vmw_surface *srf = vmw_res_to_srf(res); 1027 struct vmw_surface_metadata *metadata = &srf->metadata; 1028 uint32_t cmd_len, cmd_id, submit_len; 1029 int ret; 1030 struct { 1031 SVGA3dCmdHeader header; 1032 SVGA3dCmdDefineGBSurface body; 1033 } *cmd; 1034 struct { 1035 SVGA3dCmdHeader header; 1036 SVGA3dCmdDefineGBSurface_v2 body; 1037 } *cmd2; 1038 struct { 1039 SVGA3dCmdHeader header; 1040 SVGA3dCmdDefineGBSurface_v3 body; 1041 } *cmd3; 1042 struct { 1043 SVGA3dCmdHeader header; 1044 SVGA3dCmdDefineGBSurface_v4 body; 1045 } *cmd4; 1046 1047 if (likely(res->id != -1)) 1048 return 0; 1049 1050 vmw_fifo_resource_inc(dev_priv); 1051 ret = vmw_resource_alloc_id(res); 1052 if (unlikely(ret != 0)) { 1053 DRM_ERROR("Failed to allocate a surface id.\n"); 1054 goto out_no_id; 1055 } 1056 1057 if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) { 1058 ret = -EBUSY; 1059 goto out_no_fifo; 1060 } 1061 1062 if (has_sm5_context(dev_priv) && metadata->array_size > 0) { 1063 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V4; 1064 cmd_len = sizeof(cmd4->body); 1065 submit_len = sizeof(*cmd4); 1066 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { 1067 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3; 1068 cmd_len = sizeof(cmd3->body); 1069 submit_len = sizeof(*cmd3); 1070 } else if (metadata->array_size > 0) { 1071 /* VMW_SM_4 support verified at creation time. */ 1072 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2; 1073 cmd_len = sizeof(cmd2->body); 1074 submit_len = sizeof(*cmd2); 1075 } else { 1076 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE; 1077 cmd_len = sizeof(cmd->body); 1078 submit_len = sizeof(*cmd); 1079 } 1080 1081 cmd = VMW_CMD_RESERVE(dev_priv, submit_len); 1082 cmd2 = (typeof(cmd2))cmd; 1083 cmd3 = (typeof(cmd3))cmd; 1084 cmd4 = (typeof(cmd4))cmd; 1085 if (unlikely(!cmd)) { 1086 ret = -ENOMEM; 1087 goto out_no_fifo; 1088 } 1089 1090 if (has_sm5_context(dev_priv) && metadata->array_size > 0) { 1091 cmd4->header.id = cmd_id; 1092 cmd4->header.size = cmd_len; 1093 cmd4->body.sid = srf->res.id; 1094 cmd4->body.surfaceFlags = metadata->flags; 1095 cmd4->body.format = metadata->format; 1096 cmd4->body.numMipLevels = metadata->mip_levels[0]; 1097 cmd4->body.multisampleCount = metadata->multisample_count; 1098 cmd4->body.multisamplePattern = metadata->multisample_pattern; 1099 cmd4->body.qualityLevel = metadata->quality_level; 1100 cmd4->body.autogenFilter = metadata->autogen_filter; 1101 cmd4->body.size.width = metadata->base_size.width; 1102 cmd4->body.size.height = metadata->base_size.height; 1103 cmd4->body.size.depth = metadata->base_size.depth; 1104 cmd4->body.arraySize = metadata->array_size; 1105 cmd4->body.bufferByteStride = metadata->buffer_byte_stride; 1106 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) { 1107 cmd3->header.id = cmd_id; 1108 cmd3->header.size = cmd_len; 1109 cmd3->body.sid = srf->res.id; 1110 cmd3->body.surfaceFlags = metadata->flags; 1111 cmd3->body.format = metadata->format; 1112 cmd3->body.numMipLevels = metadata->mip_levels[0]; 1113 cmd3->body.multisampleCount = metadata->multisample_count; 1114 cmd3->body.multisamplePattern = metadata->multisample_pattern; 1115 cmd3->body.qualityLevel = metadata->quality_level; 1116 cmd3->body.autogenFilter = metadata->autogen_filter; 1117 cmd3->body.size.width = metadata->base_size.width; 1118 cmd3->body.size.height = metadata->base_size.height; 1119 cmd3->body.size.depth = metadata->base_size.depth; 1120 cmd3->body.arraySize = metadata->array_size; 1121 } else if (metadata->array_size > 0) { 1122 cmd2->header.id = cmd_id; 1123 cmd2->header.size = cmd_len; 1124 cmd2->body.sid = srf->res.id; 1125 cmd2->body.surfaceFlags = metadata->flags; 1126 cmd2->body.format = metadata->format; 1127 cmd2->body.numMipLevels = metadata->mip_levels[0]; 1128 cmd2->body.multisampleCount = metadata->multisample_count; 1129 cmd2->body.autogenFilter = metadata->autogen_filter; 1130 cmd2->body.size.width = metadata->base_size.width; 1131 cmd2->body.size.height = metadata->base_size.height; 1132 cmd2->body.size.depth = metadata->base_size.depth; 1133 cmd2->body.arraySize = metadata->array_size; 1134 } else { 1135 cmd->header.id = cmd_id; 1136 cmd->header.size = cmd_len; 1137 cmd->body.sid = srf->res.id; 1138 cmd->body.surfaceFlags = metadata->flags; 1139 cmd->body.format = metadata->format; 1140 cmd->body.numMipLevels = metadata->mip_levels[0]; 1141 cmd->body.multisampleCount = metadata->multisample_count; 1142 cmd->body.autogenFilter = metadata->autogen_filter; 1143 cmd->body.size.width = metadata->base_size.width; 1144 cmd->body.size.height = metadata->base_size.height; 1145 cmd->body.size.depth = metadata->base_size.depth; 1146 } 1147 1148 vmw_cmd_commit(dev_priv, submit_len); 1149 1150 return 0; 1151 1152 out_no_fifo: 1153 vmw_resource_release_id(res); 1154 out_no_id: 1155 vmw_fifo_resource_dec(dev_priv); 1156 return ret; 1157 } 1158 1159 1160 static int vmw_gb_surface_bind(struct vmw_resource *res, 1161 struct ttm_validate_buffer *val_buf) 1162 { 1163 struct vmw_private *dev_priv = res->dev_priv; 1164 struct { 1165 SVGA3dCmdHeader header; 1166 SVGA3dCmdBindGBSurface body; 1167 } *cmd1; 1168 struct { 1169 SVGA3dCmdHeader header; 1170 SVGA3dCmdUpdateGBSurface body; 1171 } *cmd2; 1172 uint32_t submit_size; 1173 struct ttm_buffer_object *bo = val_buf->bo; 1174 1175 BUG_ON(bo->resource->mem_type != VMW_PL_MOB); 1176 1177 submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0); 1178 1179 cmd1 = VMW_CMD_RESERVE(dev_priv, submit_size); 1180 if (unlikely(!cmd1)) 1181 return -ENOMEM; 1182 1183 cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; 1184 cmd1->header.size = sizeof(cmd1->body); 1185 cmd1->body.sid = res->id; 1186 cmd1->body.mobid = bo->resource->start; 1187 if (res->backup_dirty) { 1188 cmd2 = (void *) &cmd1[1]; 1189 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE; 1190 cmd2->header.size = sizeof(cmd2->body); 1191 cmd2->body.sid = res->id; 1192 } 1193 vmw_cmd_commit(dev_priv, submit_size); 1194 1195 if (res->backup->dirty && res->backup_dirty) { 1196 /* We've just made a full upload. Cear dirty regions. */ 1197 vmw_bo_dirty_clear_res(res); 1198 } 1199 1200 res->backup_dirty = false; 1201 1202 return 0; 1203 } 1204 1205 static int vmw_gb_surface_unbind(struct vmw_resource *res, 1206 bool readback, 1207 struct ttm_validate_buffer *val_buf) 1208 { 1209 struct vmw_private *dev_priv = res->dev_priv; 1210 struct ttm_buffer_object *bo = val_buf->bo; 1211 struct vmw_fence_obj *fence; 1212 1213 struct { 1214 SVGA3dCmdHeader header; 1215 SVGA3dCmdReadbackGBSurface body; 1216 } *cmd1; 1217 struct { 1218 SVGA3dCmdHeader header; 1219 SVGA3dCmdInvalidateGBSurface body; 1220 } *cmd2; 1221 struct { 1222 SVGA3dCmdHeader header; 1223 SVGA3dCmdBindGBSurface body; 1224 } *cmd3; 1225 uint32_t submit_size; 1226 uint8_t *cmd; 1227 1228 1229 BUG_ON(bo->resource->mem_type != VMW_PL_MOB); 1230 1231 submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2)); 1232 cmd = VMW_CMD_RESERVE(dev_priv, submit_size); 1233 if (unlikely(!cmd)) 1234 return -ENOMEM; 1235 1236 if (readback) { 1237 cmd1 = (void *) cmd; 1238 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; 1239 cmd1->header.size = sizeof(cmd1->body); 1240 cmd1->body.sid = res->id; 1241 cmd3 = (void *) &cmd1[1]; 1242 } else { 1243 cmd2 = (void *) cmd; 1244 cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE; 1245 cmd2->header.size = sizeof(cmd2->body); 1246 cmd2->body.sid = res->id; 1247 cmd3 = (void *) &cmd2[1]; 1248 } 1249 1250 cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE; 1251 cmd3->header.size = sizeof(cmd3->body); 1252 cmd3->body.sid = res->id; 1253 cmd3->body.mobid = SVGA3D_INVALID_ID; 1254 1255 vmw_cmd_commit(dev_priv, submit_size); 1256 1257 /* 1258 * Create a fence object and fence the backup buffer. 1259 */ 1260 1261 (void) vmw_execbuf_fence_commands(NULL, dev_priv, 1262 &fence, NULL); 1263 1264 vmw_bo_fence_single(val_buf->bo, fence); 1265 1266 if (likely(fence != NULL)) 1267 vmw_fence_obj_unreference(&fence); 1268 1269 return 0; 1270 } 1271 1272 static int vmw_gb_surface_destroy(struct vmw_resource *res) 1273 { 1274 struct vmw_private *dev_priv = res->dev_priv; 1275 struct vmw_surface *srf = vmw_res_to_srf(res); 1276 struct { 1277 SVGA3dCmdHeader header; 1278 SVGA3dCmdDestroyGBSurface body; 1279 } *cmd; 1280 1281 if (likely(res->id == -1)) 1282 return 0; 1283 1284 mutex_lock(&dev_priv->binding_mutex); 1285 vmw_view_surface_list_destroy(dev_priv, &srf->view_list); 1286 vmw_binding_res_list_scrub(&res->binding_head); 1287 1288 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); 1289 if (unlikely(!cmd)) { 1290 mutex_unlock(&dev_priv->binding_mutex); 1291 return -ENOMEM; 1292 } 1293 1294 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE; 1295 cmd->header.size = sizeof(cmd->body); 1296 cmd->body.sid = res->id; 1297 vmw_cmd_commit(dev_priv, sizeof(*cmd)); 1298 mutex_unlock(&dev_priv->binding_mutex); 1299 vmw_resource_release_id(res); 1300 vmw_fifo_resource_dec(dev_priv); 1301 1302 return 0; 1303 } 1304 1305 /** 1306 * vmw_gb_surface_define_ioctl - Ioctl function implementing 1307 * the user surface define functionality. 1308 * 1309 * @dev: Pointer to a struct drm_device. 1310 * @data: Pointer to data copied from / to user-space. 1311 * @file_priv: Pointer to a drm file private structure. 1312 */ 1313 int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data, 1314 struct drm_file *file_priv) 1315 { 1316 union drm_vmw_gb_surface_create_arg *arg = 1317 (union drm_vmw_gb_surface_create_arg *)data; 1318 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; 1319 struct drm_vmw_gb_surface_create_ext_req req_ext; 1320 1321 req_ext.base = arg->req; 1322 req_ext.version = drm_vmw_gb_surface_v1; 1323 req_ext.svga3d_flags_upper_32_bits = 0; 1324 req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE; 1325 req_ext.quality_level = SVGA3D_MS_QUALITY_NONE; 1326 req_ext.buffer_byte_stride = 0; 1327 req_ext.must_be_zero = 0; 1328 1329 return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv); 1330 } 1331 1332 /** 1333 * vmw_gb_surface_reference_ioctl - Ioctl function implementing 1334 * the user surface reference functionality. 1335 * 1336 * @dev: Pointer to a struct drm_device. 1337 * @data: Pointer to data copied from / to user-space. 1338 * @file_priv: Pointer to a drm file private structure. 1339 */ 1340 int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data, 1341 struct drm_file *file_priv) 1342 { 1343 union drm_vmw_gb_surface_reference_arg *arg = 1344 (union drm_vmw_gb_surface_reference_arg *)data; 1345 struct drm_vmw_surface_arg *req = &arg->req; 1346 struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep; 1347 struct drm_vmw_gb_surface_ref_ext_rep rep_ext; 1348 int ret; 1349 1350 ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv); 1351 1352 if (unlikely(ret != 0)) 1353 return ret; 1354 1355 rep->creq = rep_ext.creq.base; 1356 rep->crep = rep_ext.crep; 1357 1358 return ret; 1359 } 1360 1361 /** 1362 * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing 1363 * the user surface define functionality. 1364 * 1365 * @dev: Pointer to a struct drm_device. 1366 * @data: Pointer to data copied from / to user-space. 1367 * @file_priv: Pointer to a drm file private structure. 1368 */ 1369 int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data, 1370 struct drm_file *file_priv) 1371 { 1372 union drm_vmw_gb_surface_create_ext_arg *arg = 1373 (union drm_vmw_gb_surface_create_ext_arg *)data; 1374 struct drm_vmw_gb_surface_create_ext_req *req = &arg->req; 1375 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep; 1376 1377 return vmw_gb_surface_define_internal(dev, req, rep, file_priv); 1378 } 1379 1380 /** 1381 * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing 1382 * the user surface reference functionality. 1383 * 1384 * @dev: Pointer to a struct drm_device. 1385 * @data: Pointer to data copied from / to user-space. 1386 * @file_priv: Pointer to a drm file private structure. 1387 */ 1388 int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data, 1389 struct drm_file *file_priv) 1390 { 1391 union drm_vmw_gb_surface_reference_ext_arg *arg = 1392 (union drm_vmw_gb_surface_reference_ext_arg *)data; 1393 struct drm_vmw_surface_arg *req = &arg->req; 1394 struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep; 1395 1396 return vmw_gb_surface_reference_internal(dev, req, rep, file_priv); 1397 } 1398 1399 /** 1400 * vmw_gb_surface_define_internal - Ioctl function implementing 1401 * the user surface define functionality. 1402 * 1403 * @dev: Pointer to a struct drm_device. 1404 * @req: Request argument from user-space. 1405 * @rep: Response argument to user-space. 1406 * @file_priv: Pointer to a drm file private structure. 1407 */ 1408 static int 1409 vmw_gb_surface_define_internal(struct drm_device *dev, 1410 struct drm_vmw_gb_surface_create_ext_req *req, 1411 struct drm_vmw_gb_surface_create_rep *rep, 1412 struct drm_file *file_priv) 1413 { 1414 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; 1415 struct vmw_private *dev_priv = vmw_priv(dev); 1416 struct vmw_user_surface *user_srf; 1417 struct vmw_surface_metadata metadata = {0}; 1418 struct vmw_surface *srf; 1419 struct vmw_resource *res; 1420 struct vmw_resource *tmp; 1421 int ret = 0; 1422 uint32_t backup_handle = 0; 1423 SVGA3dSurfaceAllFlags svga3d_flags_64 = 1424 SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits, 1425 req->base.svga3d_flags); 1426 1427 /* array_size must be null for non-GL3 host. */ 1428 if (req->base.array_size > 0 && !has_sm4_context(dev_priv)) { 1429 VMW_DEBUG_USER("SM4 surface not supported.\n"); 1430 return -EINVAL; 1431 } 1432 1433 if (!has_sm4_1_context(dev_priv)) { 1434 if (req->svga3d_flags_upper_32_bits != 0) 1435 ret = -EINVAL; 1436 1437 if (req->base.multisample_count != 0) 1438 ret = -EINVAL; 1439 1440 if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE) 1441 ret = -EINVAL; 1442 1443 if (req->quality_level != SVGA3D_MS_QUALITY_NONE) 1444 ret = -EINVAL; 1445 1446 if (ret) { 1447 VMW_DEBUG_USER("SM4.1 surface not supported.\n"); 1448 return ret; 1449 } 1450 } 1451 1452 if (req->buffer_byte_stride > 0 && !has_sm5_context(dev_priv)) { 1453 VMW_DEBUG_USER("SM5 surface not supported.\n"); 1454 return -EINVAL; 1455 } 1456 1457 if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) && 1458 req->base.multisample_count == 0) { 1459 VMW_DEBUG_USER("Invalid sample count.\n"); 1460 return -EINVAL; 1461 } 1462 1463 if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS) { 1464 VMW_DEBUG_USER("Invalid mip level.\n"); 1465 return -EINVAL; 1466 } 1467 1468 metadata.flags = svga3d_flags_64; 1469 metadata.format = req->base.format; 1470 metadata.mip_levels[0] = req->base.mip_levels; 1471 metadata.multisample_count = req->base.multisample_count; 1472 metadata.multisample_pattern = req->multisample_pattern; 1473 metadata.quality_level = req->quality_level; 1474 metadata.array_size = req->base.array_size; 1475 metadata.buffer_byte_stride = req->buffer_byte_stride; 1476 metadata.num_sizes = 1; 1477 metadata.base_size = req->base.base_size; 1478 metadata.scanout = req->base.drm_surface_flags & 1479 drm_vmw_surface_flag_scanout; 1480 1481 /* Define a surface based on the parameters. */ 1482 ret = vmw_gb_surface_define(dev_priv, &metadata, &srf); 1483 if (ret != 0) { 1484 VMW_DEBUG_USER("Failed to define surface.\n"); 1485 return ret; 1486 } 1487 1488 user_srf = container_of(srf, struct vmw_user_surface, srf); 1489 if (drm_is_primary_client(file_priv)) 1490 user_srf->master = drm_file_get_master(file_priv); 1491 1492 res = &user_srf->srf.res; 1493 1494 if (req->base.buffer_handle != SVGA3D_INVALID_ID) { 1495 ret = vmw_user_bo_lookup(file_priv, req->base.buffer_handle, 1496 &res->backup); 1497 if (ret == 0) { 1498 if (res->backup->base.base.size < res->backup_size) { 1499 VMW_DEBUG_USER("Surface backup buffer too small.\n"); 1500 vmw_bo_unreference(&res->backup); 1501 ret = -EINVAL; 1502 goto out_unlock; 1503 } else { 1504 backup_handle = req->base.buffer_handle; 1505 } 1506 } 1507 } else if (req->base.drm_surface_flags & 1508 (drm_vmw_surface_flag_create_buffer | 1509 drm_vmw_surface_flag_coherent)) { 1510 ret = vmw_gem_object_create_with_handle(dev_priv, file_priv, 1511 res->backup_size, 1512 &backup_handle, 1513 &res->backup); 1514 if (ret == 0) 1515 vmw_bo_reference(res->backup); 1516 1517 } 1518 1519 if (unlikely(ret != 0)) { 1520 vmw_resource_unreference(&res); 1521 goto out_unlock; 1522 } 1523 1524 if (req->base.drm_surface_flags & drm_vmw_surface_flag_coherent) { 1525 struct vmw_buffer_object *backup = res->backup; 1526 1527 ttm_bo_reserve(&backup->base, false, false, NULL); 1528 if (!res->func->dirty_alloc) 1529 ret = -EINVAL; 1530 if (!ret) 1531 ret = vmw_bo_dirty_add(backup); 1532 if (!ret) { 1533 res->coherent = true; 1534 ret = res->func->dirty_alloc(res); 1535 } 1536 ttm_bo_unreserve(&backup->base); 1537 if (ret) { 1538 vmw_resource_unreference(&res); 1539 goto out_unlock; 1540 } 1541 1542 } 1543 1544 tmp = vmw_resource_reference(res); 1545 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, 1546 req->base.drm_surface_flags & 1547 drm_vmw_surface_flag_shareable, 1548 VMW_RES_SURFACE, 1549 &vmw_user_surface_base_release); 1550 1551 if (unlikely(ret != 0)) { 1552 vmw_resource_unreference(&tmp); 1553 vmw_resource_unreference(&res); 1554 goto out_unlock; 1555 } 1556 1557 rep->handle = user_srf->prime.base.handle; 1558 rep->backup_size = res->backup_size; 1559 if (res->backup) { 1560 rep->buffer_map_handle = 1561 drm_vma_node_offset_addr(&res->backup->base.base.vma_node); 1562 rep->buffer_size = res->backup->base.base.size; 1563 rep->buffer_handle = backup_handle; 1564 } else { 1565 rep->buffer_map_handle = 0; 1566 rep->buffer_size = 0; 1567 rep->buffer_handle = SVGA3D_INVALID_ID; 1568 } 1569 vmw_resource_unreference(&res); 1570 1571 out_unlock: 1572 return ret; 1573 } 1574 1575 /** 1576 * vmw_gb_surface_reference_internal - Ioctl function implementing 1577 * the user surface reference functionality. 1578 * 1579 * @dev: Pointer to a struct drm_device. 1580 * @req: Pointer to user-space request surface arg. 1581 * @rep: Pointer to response to user-space. 1582 * @file_priv: Pointer to a drm file private structure. 1583 */ 1584 static int 1585 vmw_gb_surface_reference_internal(struct drm_device *dev, 1586 struct drm_vmw_surface_arg *req, 1587 struct drm_vmw_gb_surface_ref_ext_rep *rep, 1588 struct drm_file *file_priv) 1589 { 1590 struct vmw_private *dev_priv = vmw_priv(dev); 1591 struct vmw_surface *srf; 1592 struct vmw_user_surface *user_srf; 1593 struct vmw_surface_metadata *metadata; 1594 struct ttm_base_object *base; 1595 u32 backup_handle; 1596 int ret; 1597 1598 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid, 1599 req->handle_type, &base); 1600 if (unlikely(ret != 0)) 1601 return ret; 1602 1603 user_srf = container_of(base, struct vmw_user_surface, prime.base); 1604 srf = &user_srf->srf; 1605 if (!srf->res.backup) { 1606 DRM_ERROR("Shared GB surface is missing a backup buffer.\n"); 1607 goto out_bad_resource; 1608 } 1609 metadata = &srf->metadata; 1610 1611 mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */ 1612 ret = drm_gem_handle_create(file_priv, &srf->res.backup->base.base, 1613 &backup_handle); 1614 mutex_unlock(&dev_priv->cmdbuf_mutex); 1615 if (ret != 0) { 1616 drm_err(dev, "Wasn't able to create a backing handle for surface sid = %u.\n", 1617 req->sid); 1618 goto out_bad_resource; 1619 } 1620 1621 rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(metadata->flags); 1622 rep->creq.base.format = metadata->format; 1623 rep->creq.base.mip_levels = metadata->mip_levels[0]; 1624 rep->creq.base.drm_surface_flags = 0; 1625 rep->creq.base.multisample_count = metadata->multisample_count; 1626 rep->creq.base.autogen_filter = metadata->autogen_filter; 1627 rep->creq.base.array_size = metadata->array_size; 1628 rep->creq.base.buffer_handle = backup_handle; 1629 rep->creq.base.base_size = metadata->base_size; 1630 rep->crep.handle = user_srf->prime.base.handle; 1631 rep->crep.backup_size = srf->res.backup_size; 1632 rep->crep.buffer_handle = backup_handle; 1633 rep->crep.buffer_map_handle = 1634 drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node); 1635 rep->crep.buffer_size = srf->res.backup->base.base.size; 1636 1637 rep->creq.version = drm_vmw_gb_surface_v1; 1638 rep->creq.svga3d_flags_upper_32_bits = 1639 SVGA3D_FLAGS_UPPER_32(metadata->flags); 1640 rep->creq.multisample_pattern = metadata->multisample_pattern; 1641 rep->creq.quality_level = metadata->quality_level; 1642 rep->creq.must_be_zero = 0; 1643 1644 out_bad_resource: 1645 ttm_base_object_unref(&base); 1646 1647 return ret; 1648 } 1649 1650 /** 1651 * vmw_subres_dirty_add - Add a dirty region to a subresource 1652 * @dirty: The surfaces's dirty tracker. 1653 * @loc_start: The location corresponding to the start of the region. 1654 * @loc_end: The location corresponding to the end of the region. 1655 * 1656 * As we are assuming that @loc_start and @loc_end represent a sequential 1657 * range of backing store memory, if the region spans multiple lines then 1658 * regardless of the x coordinate, the full lines are dirtied. 1659 * Correspondingly if the region spans multiple z slices, then full rather 1660 * than partial z slices are dirtied. 1661 */ 1662 static void vmw_subres_dirty_add(struct vmw_surface_dirty *dirty, 1663 const struct vmw_surface_loc *loc_start, 1664 const struct vmw_surface_loc *loc_end) 1665 { 1666 const struct vmw_surface_cache *cache = &dirty->cache; 1667 SVGA3dBox *box = &dirty->boxes[loc_start->sub_resource]; 1668 u32 mip = loc_start->sub_resource % cache->num_mip_levels; 1669 const struct drm_vmw_size *size = &cache->mip[mip].size; 1670 u32 box_c2 = box->z + box->d; 1671 1672 if (WARN_ON(loc_start->sub_resource >= dirty->num_subres)) 1673 return; 1674 1675 if (box->d == 0 || box->z > loc_start->z) 1676 box->z = loc_start->z; 1677 if (box_c2 < loc_end->z) 1678 box->d = loc_end->z - box->z; 1679 1680 if (loc_start->z + 1 == loc_end->z) { 1681 box_c2 = box->y + box->h; 1682 if (box->h == 0 || box->y > loc_start->y) 1683 box->y = loc_start->y; 1684 if (box_c2 < loc_end->y) 1685 box->h = loc_end->y - box->y; 1686 1687 if (loc_start->y + 1 == loc_end->y) { 1688 box_c2 = box->x + box->w; 1689 if (box->w == 0 || box->x > loc_start->x) 1690 box->x = loc_start->x; 1691 if (box_c2 < loc_end->x) 1692 box->w = loc_end->x - box->x; 1693 } else { 1694 box->x = 0; 1695 box->w = size->width; 1696 } 1697 } else { 1698 box->y = 0; 1699 box->h = size->height; 1700 box->x = 0; 1701 box->w = size->width; 1702 } 1703 } 1704 1705 /** 1706 * vmw_subres_dirty_full - Mark a full subresource as dirty 1707 * @dirty: The surface's dirty tracker. 1708 * @subres: The subresource 1709 */ 1710 static void vmw_subres_dirty_full(struct vmw_surface_dirty *dirty, u32 subres) 1711 { 1712 const struct vmw_surface_cache *cache = &dirty->cache; 1713 u32 mip = subres % cache->num_mip_levels; 1714 const struct drm_vmw_size *size = &cache->mip[mip].size; 1715 SVGA3dBox *box = &dirty->boxes[subres]; 1716 1717 box->x = 0; 1718 box->y = 0; 1719 box->z = 0; 1720 box->w = size->width; 1721 box->h = size->height; 1722 box->d = size->depth; 1723 } 1724 1725 /* 1726 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for texture 1727 * surfaces. 1728 */ 1729 static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res, 1730 size_t start, size_t end) 1731 { 1732 struct vmw_surface_dirty *dirty = 1733 (struct vmw_surface_dirty *) res->dirty; 1734 size_t backup_end = res->backup_offset + res->backup_size; 1735 struct vmw_surface_loc loc1, loc2; 1736 const struct vmw_surface_cache *cache; 1737 1738 start = max_t(size_t, start, res->backup_offset) - res->backup_offset; 1739 end = min(end, backup_end) - res->backup_offset; 1740 cache = &dirty->cache; 1741 vmw_surface_get_loc(cache, &loc1, start); 1742 vmw_surface_get_loc(cache, &loc2, end - 1); 1743 vmw_surface_inc_loc(cache, &loc2); 1744 1745 if (loc1.sheet != loc2.sheet) { 1746 u32 sub_res; 1747 1748 /* 1749 * Multiple multisample sheets. To do this in an optimized 1750 * fashion, compute the dirty region for each sheet and the 1751 * resulting union. Since this is not a common case, just dirty 1752 * the whole surface. 1753 */ 1754 for (sub_res = 0; sub_res < dirty->num_subres; ++sub_res) 1755 vmw_subres_dirty_full(dirty, sub_res); 1756 return; 1757 } 1758 if (loc1.sub_resource + 1 == loc2.sub_resource) { 1759 /* Dirty range covers a single sub-resource */ 1760 vmw_subres_dirty_add(dirty, &loc1, &loc2); 1761 } else { 1762 /* Dirty range covers multiple sub-resources */ 1763 struct vmw_surface_loc loc_min, loc_max; 1764 u32 sub_res; 1765 1766 vmw_surface_max_loc(cache, loc1.sub_resource, &loc_max); 1767 vmw_subres_dirty_add(dirty, &loc1, &loc_max); 1768 vmw_surface_min_loc(cache, loc2.sub_resource - 1, &loc_min); 1769 vmw_subres_dirty_add(dirty, &loc_min, &loc2); 1770 for (sub_res = loc1.sub_resource + 1; 1771 sub_res < loc2.sub_resource - 1; ++sub_res) 1772 vmw_subres_dirty_full(dirty, sub_res); 1773 } 1774 } 1775 1776 /* 1777 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for buffer 1778 * surfaces. 1779 */ 1780 static void vmw_surface_buf_dirty_range_add(struct vmw_resource *res, 1781 size_t start, size_t end) 1782 { 1783 struct vmw_surface_dirty *dirty = 1784 (struct vmw_surface_dirty *) res->dirty; 1785 const struct vmw_surface_cache *cache = &dirty->cache; 1786 size_t backup_end = res->backup_offset + cache->mip_chain_bytes; 1787 SVGA3dBox *box = &dirty->boxes[0]; 1788 u32 box_c2; 1789 1790 box->h = box->d = 1; 1791 start = max_t(size_t, start, res->backup_offset) - res->backup_offset; 1792 end = min(end, backup_end) - res->backup_offset; 1793 box_c2 = box->x + box->w; 1794 if (box->w == 0 || box->x > start) 1795 box->x = start; 1796 if (box_c2 < end) 1797 box->w = end - box->x; 1798 } 1799 1800 /* 1801 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for surfaces 1802 */ 1803 static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start, 1804 size_t end) 1805 { 1806 struct vmw_surface *srf = vmw_res_to_srf(res); 1807 1808 if (WARN_ON(end <= res->backup_offset || 1809 start >= res->backup_offset + res->backup_size)) 1810 return; 1811 1812 if (srf->metadata.format == SVGA3D_BUFFER) 1813 vmw_surface_buf_dirty_range_add(res, start, end); 1814 else 1815 vmw_surface_tex_dirty_range_add(res, start, end); 1816 } 1817 1818 /* 1819 * vmw_surface_dirty_sync - The surface's dirty_sync callback. 1820 */ 1821 static int vmw_surface_dirty_sync(struct vmw_resource *res) 1822 { 1823 struct vmw_private *dev_priv = res->dev_priv; 1824 u32 i, num_dirty; 1825 struct vmw_surface_dirty *dirty = 1826 (struct vmw_surface_dirty *) res->dirty; 1827 size_t alloc_size; 1828 const struct vmw_surface_cache *cache = &dirty->cache; 1829 struct { 1830 SVGA3dCmdHeader header; 1831 SVGA3dCmdDXUpdateSubResource body; 1832 } *cmd1; 1833 struct { 1834 SVGA3dCmdHeader header; 1835 SVGA3dCmdUpdateGBImage body; 1836 } *cmd2; 1837 void *cmd; 1838 1839 num_dirty = 0; 1840 for (i = 0; i < dirty->num_subres; ++i) { 1841 const SVGA3dBox *box = &dirty->boxes[i]; 1842 1843 if (box->d) 1844 num_dirty++; 1845 } 1846 1847 if (!num_dirty) 1848 goto out; 1849 1850 alloc_size = num_dirty * ((has_sm4_context(dev_priv)) ? sizeof(*cmd1) : sizeof(*cmd2)); 1851 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); 1852 if (!cmd) 1853 return -ENOMEM; 1854 1855 cmd1 = cmd; 1856 cmd2 = cmd; 1857 1858 for (i = 0; i < dirty->num_subres; ++i) { 1859 const SVGA3dBox *box = &dirty->boxes[i]; 1860 1861 if (!box->d) 1862 continue; 1863 1864 /* 1865 * DX_UPDATE_SUBRESOURCE is aware of array surfaces. 1866 * UPDATE_GB_IMAGE is not. 1867 */ 1868 if (has_sm4_context(dev_priv)) { 1869 cmd1->header.id = SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE; 1870 cmd1->header.size = sizeof(cmd1->body); 1871 cmd1->body.sid = res->id; 1872 cmd1->body.subResource = i; 1873 cmd1->body.box = *box; 1874 cmd1++; 1875 } else { 1876 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; 1877 cmd2->header.size = sizeof(cmd2->body); 1878 cmd2->body.image.sid = res->id; 1879 cmd2->body.image.face = i / cache->num_mip_levels; 1880 cmd2->body.image.mipmap = i - 1881 (cache->num_mip_levels * cmd2->body.image.face); 1882 cmd2->body.box = *box; 1883 cmd2++; 1884 } 1885 1886 } 1887 vmw_cmd_commit(dev_priv, alloc_size); 1888 out: 1889 memset(&dirty->boxes[0], 0, sizeof(dirty->boxes[0]) * 1890 dirty->num_subres); 1891 1892 return 0; 1893 } 1894 1895 /* 1896 * vmw_surface_dirty_alloc - The surface's dirty_alloc callback. 1897 */ 1898 static int vmw_surface_dirty_alloc(struct vmw_resource *res) 1899 { 1900 struct vmw_surface *srf = vmw_res_to_srf(res); 1901 const struct vmw_surface_metadata *metadata = &srf->metadata; 1902 struct vmw_surface_dirty *dirty; 1903 u32 num_layers = 1; 1904 u32 num_mip; 1905 u32 num_subres; 1906 u32 num_samples; 1907 size_t dirty_size; 1908 int ret; 1909 1910 if (metadata->array_size) 1911 num_layers = metadata->array_size; 1912 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) 1913 num_layers *= SVGA3D_MAX_SURFACE_FACES; 1914 1915 num_mip = metadata->mip_levels[0]; 1916 if (!num_mip) 1917 num_mip = 1; 1918 1919 num_subres = num_layers * num_mip; 1920 dirty_size = struct_size(dirty, boxes, num_subres); 1921 1922 dirty = kvzalloc(dirty_size, GFP_KERNEL); 1923 if (!dirty) { 1924 ret = -ENOMEM; 1925 goto out_no_dirty; 1926 } 1927 1928 num_samples = max_t(u32, 1, metadata->multisample_count); 1929 ret = vmw_surface_setup_cache(&metadata->base_size, metadata->format, 1930 num_mip, num_layers, num_samples, 1931 &dirty->cache); 1932 if (ret) 1933 goto out_no_cache; 1934 1935 dirty->num_subres = num_subres; 1936 res->dirty = (struct vmw_resource_dirty *) dirty; 1937 1938 return 0; 1939 1940 out_no_cache: 1941 kvfree(dirty); 1942 out_no_dirty: 1943 return ret; 1944 } 1945 1946 /* 1947 * vmw_surface_dirty_free - The surface's dirty_free callback 1948 */ 1949 static void vmw_surface_dirty_free(struct vmw_resource *res) 1950 { 1951 struct vmw_surface_dirty *dirty = 1952 (struct vmw_surface_dirty *) res->dirty; 1953 1954 kvfree(dirty); 1955 res->dirty = NULL; 1956 } 1957 1958 /* 1959 * vmw_surface_clean - The surface's clean callback 1960 */ 1961 static int vmw_surface_clean(struct vmw_resource *res) 1962 { 1963 struct vmw_private *dev_priv = res->dev_priv; 1964 size_t alloc_size; 1965 struct { 1966 SVGA3dCmdHeader header; 1967 SVGA3dCmdReadbackGBSurface body; 1968 } *cmd; 1969 1970 alloc_size = sizeof(*cmd); 1971 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size); 1972 if (!cmd) 1973 return -ENOMEM; 1974 1975 cmd->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE; 1976 cmd->header.size = sizeof(cmd->body); 1977 cmd->body.sid = res->id; 1978 vmw_cmd_commit(dev_priv, alloc_size); 1979 1980 return 0; 1981 } 1982 1983 /* 1984 * vmw_gb_surface_define - Define a private GB surface 1985 * 1986 * @dev_priv: Pointer to a device private. 1987 * @metadata: Metadata representing the surface to create. 1988 * @user_srf_out: allocated user_srf. Set to NULL on failure. 1989 * 1990 * GB surfaces allocated by this function will not have a user mode handle, and 1991 * thus will only be visible to vmwgfx. For optimization reasons the 1992 * surface may later be given a user mode handle by another function to make 1993 * it available to user mode drivers. 1994 */ 1995 int vmw_gb_surface_define(struct vmw_private *dev_priv, 1996 const struct vmw_surface_metadata *req, 1997 struct vmw_surface **srf_out) 1998 { 1999 struct vmw_surface_metadata *metadata; 2000 struct vmw_user_surface *user_srf; 2001 struct vmw_surface *srf; 2002 u32 sample_count = 1; 2003 u32 num_layers = 1; 2004 int ret; 2005 2006 *srf_out = NULL; 2007 2008 if (req->scanout) { 2009 if (!vmw_surface_is_screen_target_format(req->format)) { 2010 VMW_DEBUG_USER("Invalid Screen Target surface format."); 2011 return -EINVAL; 2012 } 2013 2014 if (req->base_size.width > dev_priv->texture_max_width || 2015 req->base_size.height > dev_priv->texture_max_height) { 2016 VMW_DEBUG_USER("%ux%u\n, exceed max surface size %ux%u", 2017 req->base_size.width, 2018 req->base_size.height, 2019 dev_priv->texture_max_width, 2020 dev_priv->texture_max_height); 2021 return -EINVAL; 2022 } 2023 } else { 2024 const SVGA3dSurfaceDesc *desc = 2025 vmw_surface_get_desc(req->format); 2026 2027 if (desc->blockDesc == SVGA3DBLOCKDESC_NONE) { 2028 VMW_DEBUG_USER("Invalid surface format.\n"); 2029 return -EINVAL; 2030 } 2031 } 2032 2033 if (req->autogen_filter != SVGA3D_TEX_FILTER_NONE) 2034 return -EINVAL; 2035 2036 if (req->num_sizes != 1) 2037 return -EINVAL; 2038 2039 if (req->sizes != NULL) 2040 return -EINVAL; 2041 2042 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); 2043 if (unlikely(!user_srf)) { 2044 ret = -ENOMEM; 2045 goto out_unlock; 2046 } 2047 2048 *srf_out = &user_srf->srf; 2049 user_srf->prime.base.shareable = false; 2050 user_srf->prime.base.tfile = NULL; 2051 2052 srf = &user_srf->srf; 2053 srf->metadata = *req; 2054 srf->offsets = NULL; 2055 2056 metadata = &srf->metadata; 2057 2058 if (metadata->array_size) 2059 num_layers = req->array_size; 2060 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP) 2061 num_layers = SVGA3D_MAX_SURFACE_FACES; 2062 2063 if (metadata->flags & SVGA3D_SURFACE_MULTISAMPLE) 2064 sample_count = metadata->multisample_count; 2065 2066 srf->res.backup_size = 2067 vmw_surface_get_serialized_size_extended( 2068 metadata->format, 2069 metadata->base_size, 2070 metadata->mip_levels[0], 2071 num_layers, 2072 sample_count); 2073 2074 if (metadata->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT) 2075 srf->res.backup_size += sizeof(SVGA3dDXSOState); 2076 2077 /* 2078 * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with 2079 * size greater than STDU max width/height. This is really a workaround 2080 * to support creation of big framebuffer requested by some user-space 2081 * for whole topology. That big framebuffer won't really be used for 2082 * binding with screen target as during prepare_fb a separate surface is 2083 * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag. 2084 */ 2085 if (dev_priv->active_display_unit == vmw_du_screen_target && 2086 metadata->scanout && 2087 metadata->base_size.width <= dev_priv->stdu_max_width && 2088 metadata->base_size.height <= dev_priv->stdu_max_height) 2089 metadata->flags |= SVGA3D_SURFACE_SCREENTARGET; 2090 2091 /* 2092 * From this point, the generic resource management functions 2093 * destroy the object on failure. 2094 */ 2095 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); 2096 2097 return ret; 2098 2099 out_unlock: 2100 return ret; 2101 } 2102