drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

   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 #include <linux/sync_file.h>
  28
  29 #include "vmwgfx_drv.h"
  30 #include "vmwgfx_reg.h"
  31 #include <drm/ttm/ttm_bo_api.h>
  32 #include <drm/ttm/ttm_placement.h>
  33 #include "vmwgfx_so.h"
  34 #include "vmwgfx_binding.h"
  35 #include "vmwgfx_mksstat.h"
  36
  37 #define VMW_RES_HT_ORDER 12
  38
  39 /*
  40  * Helper macro to get dx_ctx_node if available otherwise print an error
  41  * message. This is for use in command verifier function where if dx_ctx_node
  42  * is not set then command is invalid.
  43  */
  44 #define VMW_GET_CTX_NODE(__sw_context)                                        \
  45 ({                                                                            \
  46         __sw_context->dx_ctx_node ? __sw_context->dx_ctx_node : ({            \
  47                 VMW_DEBUG_USER("SM context is not set at %s\n", __func__);    \
  48                 __sw_context->dx_ctx_node;                                    \
  49         });                                                                   \
  50 })
  51
  52 #define VMW_DECLARE_CMD_VAR(__var, __type)                                    \
  53         struct {                                                              \
  54                 SVGA3dCmdHeader header;                                       \
  55                 __type body;                                                  \
  56         } __var
  57
  58 /**
  59  * struct vmw_relocation - Buffer object relocation
  60  *
  61  * @head: List head for the command submission context's relocation list
  62  * @vbo: Non ref-counted pointer to buffer object
  63  * @mob_loc: Pointer to location for mob id to be modified
  64  * @location: Pointer to location for guest pointer to be modified
  65  */
  66 struct vmw_relocation {
  67         struct list_head head;
  68         struct vmw_buffer_object *vbo;
  69         union {
  70                 SVGAMobId *mob_loc;
  71                 SVGAGuestPtr *location;
  72         };
  73 };
  74
  75 /**
  76  * enum vmw_resource_relocation_type - Relocation type for resources
  77  *
  78  * @vmw_res_rel_normal: Traditional relocation. The resource id in the
  79  * command stream is replaced with the actual id after validation.
  80  * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced
  81  * with a NOP.
  82  * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id after
  83  * validation is -1, the command is replaced with a NOP. Otherwise no action.
  84  * @vmw_res_rel_max: Last value in the enum - used for error checking
  85 */
  86 enum vmw_resource_relocation_type {
  87         vmw_res_rel_normal,
  88         vmw_res_rel_nop,
  89         vmw_res_rel_cond_nop,
  90         vmw_res_rel_max
  91 };
  92
  93 /**
  94  * struct vmw_resource_relocation - Relocation info for resources
  95  *
  96  * @head: List head for the software context's relocation list.
  97  * @res: Non-ref-counted pointer to the resource.
  98  * @offset: Offset of single byte entries into the command buffer where the id
  99  * that needs fixup is located.
 100  * @rel_type: Type of relocation.
 101  */
 102 struct vmw_resource_relocation {
 103         struct list_head head;
 104         const struct vmw_resource *res;
 105         u32 offset:29;
 106         enum vmw_resource_relocation_type rel_type:3;
 107 };
 108
 109 /**
 110  * struct vmw_ctx_validation_info - Extra validation metadata for contexts
 111  *
 112  * @head: List head of context list
 113  * @ctx: The context resource
 114  * @cur: The context's persistent binding state
 115  * @staged: The binding state changes of this command buffer
 116  */
 117 struct vmw_ctx_validation_info {
 118         struct list_head head;
 119         struct vmw_resource *ctx;
 120         struct vmw_ctx_binding_state *cur;
 121         struct vmw_ctx_binding_state *staged;
 122 };
 123
 124 /**
 125  * struct vmw_cmd_entry - Describe a command for the verifier
 126  *
 127  * @func: Call-back to handle the command.
 128  * @user_allow: Whether allowed from the execbuf ioctl.
 129  * @gb_disable: Whether disabled if guest-backed objects are available.
 130  * @gb_enable: Whether enabled iff guest-backed objects are available.
 131  * @cmd_name: Name of the command.
 132  */
 133 struct vmw_cmd_entry {
 134         int (*func) (struct vmw_private *, struct vmw_sw_context *,
 135                      SVGA3dCmdHeader *);
 136         bool user_allow;
 137         bool gb_disable;
 138         bool gb_enable;
 139         const char *cmd_name;
 140 };
 141
 142 #define VMW_CMD_DEF(_cmd, _func, _user_allow, _gb_disable, _gb_enable)  \
 143         [(_cmd) - SVGA_3D_CMD_BASE] = {(_func), (_user_allow),\
 144                                        (_gb_disable), (_gb_enable), #_cmd}
 145
 146 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
 147                                         struct vmw_sw_context *sw_context,
 148                                         struct vmw_resource *ctx);
 149 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
 150                                  struct vmw_sw_context *sw_context,
 151                                  SVGAMobId *id,
 152                                  struct vmw_buffer_object **vmw_bo_p);
 153 /**
 154  * vmw_ptr_diff - Compute the offset from a to b in bytes
 155  *
 156  * @a: A starting pointer.
 157  * @b: A pointer offset in the same address space.
 158  *
 159  * Returns: The offset in bytes between the two pointers.
 160  */
 161 static size_t vmw_ptr_diff(void *a, void *b)
 162 {
 163         return (unsigned long) b - (unsigned long) a;
 164 }
 165
 166 /**
 167  * vmw_execbuf_bindings_commit - Commit modified binding state
 168  *
 169  * @sw_context: The command submission context
 170  * @backoff: Whether this is part of the error path and binding state changes
 171  * should be ignored
 172  */
 173 static void vmw_execbuf_bindings_commit(struct vmw_sw_context *sw_context,
 174                                         bool backoff)
 175 {
 176         struct vmw_ctx_validation_info *entry;
 177
 178         list_for_each_entry(entry, &sw_context->ctx_list, head) {
 179                 if (!backoff)
 180                         vmw_binding_state_commit(entry->cur, entry->staged);
 181
 182                 if (entry->staged != sw_context->staged_bindings)
 183                         vmw_binding_state_free(entry->staged);
 184                 else
 185                         sw_context->staged_bindings_inuse = false;
 186         }
 187
 188         /* List entries are freed with the validation context */
 189         INIT_LIST_HEAD(&sw_context->ctx_list);
 190 }
 191
 192 /**
 193  * vmw_bind_dx_query_mob - Bind the DX query MOB if referenced
 194  *
 195  * @sw_context: The command submission context
 196  */
 197 static void vmw_bind_dx_query_mob(struct vmw_sw_context *sw_context)
 198 {
 199         if (sw_context->dx_query_mob)
 200                 vmw_context_bind_dx_query(sw_context->dx_query_ctx,
 201                                           sw_context->dx_query_mob);
 202 }
 203
 204 /**
 205  * vmw_cmd_ctx_first_setup - Perform the setup needed when a context is added to
 206  * the validate list.
 207  *
 208  * @dev_priv: Pointer to the device private:
 209  * @sw_context: The command submission context
 210  * @res: Pointer to the resource
 211  * @node: The validation node holding the context resource metadata
 212  */
 213 static int vmw_cmd_ctx_first_setup(struct vmw_private *dev_priv,
 214                                    struct vmw_sw_context *sw_context,
 215                                    struct vmw_resource *res,
 216                                    struct vmw_ctx_validation_info *node)
 217 {
 218         int ret;
 219
 220         ret = vmw_resource_context_res_add(dev_priv, sw_context, res);
 221         if (unlikely(ret != 0))
 222                 goto out_err;
 223
 224         if (!sw_context->staged_bindings) {
 225                 sw_context->staged_bindings = vmw_binding_state_alloc(dev_priv);
 226                 if (IS_ERR(sw_context->staged_bindings)) {
 227                         ret = PTR_ERR(sw_context->staged_bindings);
 228                         sw_context->staged_bindings = NULL;
 229                         goto out_err;
 230                 }
 231         }
 232
 233         if (sw_context->staged_bindings_inuse) {
 234                 node->staged = vmw_binding_state_alloc(dev_priv);
 235                 if (IS_ERR(node->staged)) {
 236                         ret = PTR_ERR(node->staged);
 237                         node->staged = NULL;
 238                         goto out_err;
 239                 }
 240         } else {
 241                 node->staged = sw_context->staged_bindings;
 242                 sw_context->staged_bindings_inuse = true;
 243         }
 244
 245         node->ctx = res;
 246         node->cur = vmw_context_binding_state(res);
 247         list_add_tail(&node->head, &sw_context->ctx_list);
 248
 249         return 0;
 250
 251 out_err:
 252         return ret;
 253 }
 254
 255 /**
 256  * vmw_execbuf_res_size - calculate extra size fore the resource validation node
 257  *
 258  * @dev_priv: Pointer to the device private struct.
 259  * @res_type: The resource type.
 260  *
 261  * Guest-backed contexts and DX contexts require extra size to store execbuf
 262  * private information in the validation node. Typically the binding manager
 263  * associated data structures.
 264  *
 265  * Returns: The extra size requirement based on resource type.
 266  */
 267 static unsigned int vmw_execbuf_res_size(struct vmw_private *dev_priv,
 268                                          enum vmw_res_type res_type)
 269 {
 270         return (res_type == vmw_res_dx_context ||
 271                 (res_type == vmw_res_context && dev_priv->has_mob)) ?
 272                 sizeof(struct vmw_ctx_validation_info) : 0;
 273 }
 274
 275 /**
 276  * vmw_execbuf_rcache_update - Update a resource-node cache entry
 277  *
 278  * @rcache: Pointer to the entry to update.
 279  * @res: Pointer to the resource.
 280  * @private: Pointer to the execbuf-private space in the resource validation
 281  * node.
 282  */
 283 static void vmw_execbuf_rcache_update(struct vmw_res_cache_entry *rcache,
 284                                       struct vmw_resource *res,
 285                                       void *private)
 286 {
 287         rcache->res = res;
 288         rcache->private = private;
 289         rcache->valid = 1;
 290         rcache->valid_handle = 0;
 291 }
 292
 293 /**
 294  * vmw_execbuf_res_noref_val_add - Add a resource described by an unreferenced
 295  * rcu-protected pointer to the validation list.
 296  *
 297  * @sw_context: Pointer to the software context.
 298  * @res: Unreferenced rcu-protected pointer to the resource.
 299  * @dirty: Whether to change dirty status.
 300  *
 301  * Returns: 0 on success. Negative error code on failure. Typical error codes
 302  * are %-EINVAL on inconsistency and %-ESRCH if the resource was doomed.
 303  */
 304 static int vmw_execbuf_res_noref_val_add(struct vmw_sw_context *sw_context,
 305                                          struct vmw_resource *res,
 306                                          u32 dirty)
 307 {
 308         struct vmw_private *dev_priv = res->dev_priv;
 309         int ret;
 310         enum vmw_res_type res_type = vmw_res_type(res);
 311         struct vmw_res_cache_entry *rcache;
 312         struct vmw_ctx_validation_info *ctx_info;
 313         bool first_usage;
 314         unsigned int priv_size;
 315
 316         rcache = &sw_context->res_cache[res_type];
 317         if (likely(rcache->valid && rcache->res == res)) {
 318                 if (dirty)
 319                         vmw_validation_res_set_dirty(sw_context->ctx,
 320                                                      rcache->private, dirty);
 321                 vmw_user_resource_noref_release();
 322                 return 0;
 323         }
 324
 325         priv_size = vmw_execbuf_res_size(dev_priv, res_type);
 326         ret = vmw_validation_add_resource(sw_context->ctx, res, priv_size,
 327                                           dirty, (void **)&ctx_info,
 328                                           &first_usage);
 329         vmw_user_resource_noref_release();
 330         if (ret)
 331                 return ret;
 332
 333         if (priv_size && first_usage) {
 334                 ret = vmw_cmd_ctx_first_setup(dev_priv, sw_context, res,
 335                                               ctx_info);
 336                 if (ret) {
 337                         VMW_DEBUG_USER("Failed first usage context setup.\n");
 338                         return ret;
 339                 }
 340         }
 341
 342         vmw_execbuf_rcache_update(rcache, res, ctx_info);
 343         return 0;
 344 }
 345
 346 /**
 347  * vmw_execbuf_res_noctx_val_add - Add a non-context resource to the resource
 348  * validation list if it's not already on it
 349  *
 350  * @sw_context: Pointer to the software context.
 351  * @res: Pointer to the resource.
 352  * @dirty: Whether to change dirty status.
 353  *
 354  * Returns: Zero on success. Negative error code on failure.
 355  */
 356 static int vmw_execbuf_res_noctx_val_add(struct vmw_sw_context *sw_context,
 357                                          struct vmw_resource *res,
 358                                          u32 dirty)
 359 {
 360         struct vmw_res_cache_entry *rcache;
 361         enum vmw_res_type res_type = vmw_res_type(res);
 362         void *ptr;
 363         int ret;
 364
 365         rcache = &sw_context->res_cache[res_type];
 366         if (likely(rcache->valid && rcache->res == res)) {
 367                 if (dirty)
 368                         vmw_validation_res_set_dirty(sw_context->ctx,
 369                                                      rcache->private, dirty);
 370                 return 0;
 371         }
 372
 373         ret = vmw_validation_add_resource(sw_context->ctx, res, 0, dirty,
 374                                           &ptr, NULL);
 375         if (ret)
 376                 return ret;
 377
 378         vmw_execbuf_rcache_update(rcache, res, ptr);
 379
 380         return 0;
 381 }
 382
 383 /**
 384  * vmw_view_res_val_add - Add a view and the surface it's pointing to to the
 385  * validation list
 386  *
 387  * @sw_context: The software context holding the validation list.
 388  * @view: Pointer to the view resource.
 389  *
 390  * Returns 0 if success, negative error code otherwise.
 391  */
 392 static int vmw_view_res_val_add(struct vmw_sw_context *sw_context,
 393                                 struct vmw_resource *view)
 394 {
 395         int ret;
 396
 397         /*
 398          * First add the resource the view is pointing to, otherwise it may be
 399          * swapped out when the view is validated.
 400          */
 401         ret = vmw_execbuf_res_noctx_val_add(sw_context, vmw_view_srf(view),
 402                                             vmw_view_dirtying(view));
 403         if (ret)
 404                 return ret;
 405
 406         return vmw_execbuf_res_noctx_val_add(sw_context, view,
 407                                              VMW_RES_DIRTY_NONE);
 408 }
 409
 410 /**
 411  * vmw_view_id_val_add - Look up a view and add it and the surface it's pointing
 412  * to to the validation list.
 413  *
 414  * @sw_context: The software context holding the validation list.
 415  * @view_type: The view type to look up.
 416  * @id: view id of the view.
 417  *
 418  * The view is represented by a view id and the DX context it's created on, or
 419  * scheduled for creation on. If there is no DX context set, the function will
 420  * return an -EINVAL error pointer.
 421  *
 422  * Returns: Unreferenced pointer to the resource on success, negative error
 423  * pointer on failure.
 424  */
 425 static struct vmw_resource *
 426 vmw_view_id_val_add(struct vmw_sw_context *sw_context,
 427                     enum vmw_view_type view_type, u32 id)
 428 {
 429         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
 430         struct vmw_resource *view;
 431         int ret;
 432
 433         if (!ctx_node)
 434                 return ERR_PTR(-EINVAL);
 435
 436         view = vmw_view_lookup(sw_context->man, view_type, id);
 437         if (IS_ERR(view))
 438                 return view;
 439
 440         ret = vmw_view_res_val_add(sw_context, view);
 441         if (ret)
 442                 return ERR_PTR(ret);
 443
 444         return view;
 445 }
 446
 447 /**
 448  * vmw_resource_context_res_add - Put resources previously bound to a context on
 449  * the validation list
 450  *
 451  * @dev_priv: Pointer to a device private structure
 452  * @sw_context: Pointer to a software context used for this command submission
 453  * @ctx: Pointer to the context resource
 454  *
 455  * This function puts all resources that were previously bound to @ctx on the
 456  * resource validation list. This is part of the context state reemission
 457  */
 458 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
 459                                         struct vmw_sw_context *sw_context,
 460                                         struct vmw_resource *ctx)
 461 {
 462         struct list_head *binding_list;
 463         struct vmw_ctx_bindinfo *entry;
 464         int ret = 0;
 465         struct vmw_resource *res;
 466         u32 i;
 467         u32 cotable_max = has_sm5_context(ctx->dev_priv) ?
 468                 SVGA_COTABLE_MAX : SVGA_COTABLE_DX10_MAX;
 469
 470         /* Add all cotables to the validation list. */
 471         if (has_sm4_context(dev_priv) &&
 472             vmw_res_type(ctx) == vmw_res_dx_context) {
 473                 for (i = 0; i < cotable_max; ++i) {
 474                         res = vmw_context_cotable(ctx, i);
 475                         if (IS_ERR(res))
 476                                 continue;
 477
 478                         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
 479                                                             VMW_RES_DIRTY_SET);
 480                         if (unlikely(ret != 0))
 481                                 return ret;
 482                 }
 483         }
 484
 485         /* Add all resources bound to the context to the validation list */
 486         mutex_lock(&dev_priv->binding_mutex);
 487         binding_list = vmw_context_binding_list(ctx);
 488
 489         list_for_each_entry(entry, binding_list, ctx_list) {
 490                 if (vmw_res_type(entry->res) == vmw_res_view)
 491                         ret = vmw_view_res_val_add(sw_context, entry->res);
 492                 else
 493                         ret = vmw_execbuf_res_noctx_val_add
 494                                 (sw_context, entry->res,
 495                                  vmw_binding_dirtying(entry->bt));
 496                 if (unlikely(ret != 0))
 497                         break;
 498         }
 499
 500         if (has_sm4_context(dev_priv) &&
 501             vmw_res_type(ctx) == vmw_res_dx_context) {
 502                 struct vmw_buffer_object *dx_query_mob;
 503
 504                 dx_query_mob = vmw_context_get_dx_query_mob(ctx);
 505                 if (dx_query_mob)
 506                         ret = vmw_validation_add_bo(sw_context->ctx,
 507                                                     dx_query_mob, true, false);
 508         }
 509
 510         mutex_unlock(&dev_priv->binding_mutex);
 511         return ret;
 512 }
 513
 514 /**
 515  * vmw_resource_relocation_add - Add a relocation to the relocation list
 516  *
 517  * @sw_context: Pointer to the software context.
 518  * @res: The resource.
 519  * @offset: Offset into the command buffer currently being parsed where the id
 520  * that needs fixup is located. Granularity is one byte.
 521  * @rel_type: Relocation type.
 522  */
 523 static int vmw_resource_relocation_add(struct vmw_sw_context *sw_context,
 524                                        const struct vmw_resource *res,
 525                                        unsigned long offset,
 526                                        enum vmw_resource_relocation_type
 527                                        rel_type)
 528 {
 529         struct vmw_resource_relocation *rel;
 530
 531         rel = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*rel));
 532         if (unlikely(!rel)) {
 533                 VMW_DEBUG_USER("Failed to allocate a resource relocation.\n");
 534                 return -ENOMEM;
 535         }
 536
 537         rel->res = res;
 538         rel->offset = offset;
 539         rel->rel_type = rel_type;
 540         list_add_tail(&rel->head, &sw_context->res_relocations);
 541
 542         return 0;
 543 }
 544
 545 /**
 546  * vmw_resource_relocations_free - Free all relocations on a list
 547  *
 548  * @list: Pointer to the head of the relocation list
 549  */
 550 static void vmw_resource_relocations_free(struct list_head *list)
 551 {
 552         /* Memory is validation context memory, so no need to free it */
 553         INIT_LIST_HEAD(list);
 554 }
 555
 556 /**
 557  * vmw_resource_relocations_apply - Apply all relocations on a list
 558  *
 559  * @cb: Pointer to the start of the command buffer bein patch. This need not be
 560  * the same buffer as the one being parsed when the relocation list was built,
 561  * but the contents must be the same modulo the resource ids.
 562  * @list: Pointer to the head of the relocation list.
 563  */
 564 static void vmw_resource_relocations_apply(uint32_t *cb,
 565                                            struct list_head *list)
 566 {
 567         struct vmw_resource_relocation *rel;
 568
 569         /* Validate the struct vmw_resource_relocation member size */
 570         BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29));
 571         BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3));
 572
 573         list_for_each_entry(rel, list, head) {
 574                 u32 *addr = (u32 *)((unsigned long) cb + rel->offset);
 575                 switch (rel->rel_type) {
 576                 case vmw_res_rel_normal:
 577                         *addr = rel->res->id;
 578                         break;
 579                 case vmw_res_rel_nop:
 580                         *addr = SVGA_3D_CMD_NOP;
 581                         break;
 582                 default:
 583                         if (rel->res->id == -1)
 584                                 *addr = SVGA_3D_CMD_NOP;
 585                         break;
 586                 }
 587         }
 588 }
 589
 590 static int vmw_cmd_invalid(struct vmw_private *dev_priv,
 591                            struct vmw_sw_context *sw_context,
 592                            SVGA3dCmdHeader *header)
 593 {
 594         return -EINVAL;
 595 }
 596
 597 static int vmw_cmd_ok(struct vmw_private *dev_priv,
 598                       struct vmw_sw_context *sw_context,
 599                       SVGA3dCmdHeader *header)
 600 {
 601         return 0;
 602 }
 603
 604 /**
 605  * vmw_resources_reserve - Reserve all resources on the sw_context's resource
 606  * list.
 607  *
 608  * @sw_context: Pointer to the software context.
 609  *
 610  * Note that since vmware's command submission currently is protected by the
 611  * cmdbuf mutex, no fancy deadlock avoidance is required for resources, since
 612  * only a single thread at once will attempt this.
 613  */
 614 static int vmw_resources_reserve(struct vmw_sw_context *sw_context)
 615 {
 616         int ret;
 617
 618         ret = vmw_validation_res_reserve(sw_context->ctx, true);
 619         if (ret)
 620                 return ret;
 621
 622         if (sw_context->dx_query_mob) {
 623                 struct vmw_buffer_object *expected_dx_query_mob;
 624
 625                 expected_dx_query_mob =
 626                         vmw_context_get_dx_query_mob(sw_context->dx_query_ctx);
 627                 if (expected_dx_query_mob &&
 628                     expected_dx_query_mob != sw_context->dx_query_mob) {
 629                         ret = -EINVAL;
 630                 }
 631         }
 632
 633         return ret;
 634 }
 635
 636 /**
 637  * vmw_cmd_res_check - Check that a resource is present and if so, put it on the
 638  * resource validate list unless it's already there.
 639  *
 640  * @dev_priv: Pointer to a device private structure.
 641  * @sw_context: Pointer to the software context.
 642  * @res_type: Resource type.
 643  * @dirty: Whether to change dirty status.
 644  * @converter: User-space visisble type specific information.
 645  * @id_loc: Pointer to the location in the command buffer currently being parsed
 646  * from where the user-space resource id handle is located.
 647  * @p_res: Pointer to pointer to resource validalidation node. Populated on
 648  * exit.
 649  */
 650 static int
 651 vmw_cmd_res_check(struct vmw_private *dev_priv,
 652                   struct vmw_sw_context *sw_context,
 653                   enum vmw_res_type res_type,
 654                   u32 dirty,
 655                   const struct vmw_user_resource_conv *converter,
 656                   uint32_t *id_loc,
 657                   struct vmw_resource **p_res)
 658 {
 659         struct vmw_res_cache_entry *rcache = &sw_context->res_cache[res_type];
 660         struct vmw_resource *res;
 661         int ret;
 662
 663         if (p_res)
 664                 *p_res = NULL;
 665
 666         if (*id_loc == SVGA3D_INVALID_ID) {
 667                 if (res_type == vmw_res_context) {
 668                         VMW_DEBUG_USER("Illegal context invalid id.\n");
 669                         return -EINVAL;
 670                 }
 671                 return 0;
 672         }
 673
 674         if (likely(rcache->valid_handle && *id_loc == rcache->handle)) {
 675                 res = rcache->res;
 676                 if (dirty)
 677                         vmw_validation_res_set_dirty(sw_context->ctx,
 678                                                      rcache->private, dirty);
 679         } else {
 680                 unsigned int size = vmw_execbuf_res_size(dev_priv, res_type);
 681
 682                 ret = vmw_validation_preload_res(sw_context->ctx, size);
 683                 if (ret)
 684                         return ret;
 685
 686                 res = vmw_user_resource_noref_lookup_handle
 687                         (dev_priv, sw_context->fp->tfile, *id_loc, converter);
 688                 if (IS_ERR(res)) {
 689                         VMW_DEBUG_USER("Could not find/use resource 0x%08x.\n",
 690                                        (unsigned int) *id_loc);
 691                         return PTR_ERR(res);
 692                 }
 693
 694                 ret = vmw_execbuf_res_noref_val_add(sw_context, res, dirty);
 695                 if (unlikely(ret != 0))
 696                         return ret;
 697
 698                 if (rcache->valid && rcache->res == res) {
 699                         rcache->valid_handle = true;
 700                         rcache->handle = *id_loc;
 701                 }
 702         }
 703
 704         ret = vmw_resource_relocation_add(sw_context, res,
 705                                           vmw_ptr_diff(sw_context->buf_start,
 706                                                        id_loc),
 707                                           vmw_res_rel_normal);
 708         if (p_res)
 709                 *p_res = res;
 710
 711         return 0;
 712 }
 713
 714 /**
 715  * vmw_rebind_all_dx_query - Rebind DX query associated with the context
 716  *
 717  * @ctx_res: context the query belongs to
 718  *
 719  * This function assumes binding_mutex is held.
 720  */
 721 static int vmw_rebind_all_dx_query(struct vmw_resource *ctx_res)
 722 {
 723         struct vmw_private *dev_priv = ctx_res->dev_priv;
 724         struct vmw_buffer_object *dx_query_mob;
 725         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindAllQuery);
 726
 727         dx_query_mob = vmw_context_get_dx_query_mob(ctx_res);
 728
 729         if (!dx_query_mob || dx_query_mob->dx_query_ctx)
 730                 return 0;
 731
 732         cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof(*cmd), ctx_res->id);
 733         if (cmd == NULL)
 734                 return -ENOMEM;
 735
 736         cmd->header.id = SVGA_3D_CMD_DX_BIND_ALL_QUERY;
 737         cmd->header.size = sizeof(cmd->body);
 738         cmd->body.cid = ctx_res->id;
 739         cmd->body.mobid = dx_query_mob->base.resource->start;
 740         vmw_cmd_commit(dev_priv, sizeof(*cmd));
 741
 742         vmw_context_bind_dx_query(ctx_res, dx_query_mob);
 743
 744         return 0;
 745 }
 746
 747 /**
 748  * vmw_rebind_contexts - Rebind all resources previously bound to referenced
 749  * contexts.
 750  *
 751  * @sw_context: Pointer to the software context.
 752  *
 753  * Rebind context binding points that have been scrubbed because of eviction.
 754  */
 755 static int vmw_rebind_contexts(struct vmw_sw_context *sw_context)
 756 {
 757         struct vmw_ctx_validation_info *val;
 758         int ret;
 759
 760         list_for_each_entry(val, &sw_context->ctx_list, head) {
 761                 ret = vmw_binding_rebind_all(val->cur);
 762                 if (unlikely(ret != 0)) {
 763                         if (ret != -ERESTARTSYS)
 764                                 VMW_DEBUG_USER("Failed to rebind context.\n");
 765                         return ret;
 766                 }
 767
 768                 ret = vmw_rebind_all_dx_query(val->ctx);
 769                 if (ret != 0) {
 770                         VMW_DEBUG_USER("Failed to rebind queries.\n");
 771                         return ret;
 772                 }
 773         }
 774
 775         return 0;
 776 }
 777
 778 /**
 779  * vmw_view_bindings_add - Add an array of view bindings to a context binding
 780  * state tracker.
 781  *
 782  * @sw_context: The execbuf state used for this command.
 783  * @view_type: View type for the bindings.
 784  * @binding_type: Binding type for the bindings.
 785  * @shader_slot: The shader slot to user for the bindings.
 786  * @view_ids: Array of view ids to be bound.
 787  * @num_views: Number of view ids in @view_ids.
 788  * @first_slot: The binding slot to be used for the first view id in @view_ids.
 789  */
 790 static int vmw_view_bindings_add(struct vmw_sw_context *sw_context,
 791                                  enum vmw_view_type view_type,
 792                                  enum vmw_ctx_binding_type binding_type,
 793                                  uint32 shader_slot,
 794                                  uint32 view_ids[], u32 num_views,
 795                                  u32 first_slot)
 796 {
 797         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
 798         u32 i;
 799
 800         if (!ctx_node)
 801                 return -EINVAL;
 802
 803         for (i = 0; i < num_views; ++i) {
 804                 struct vmw_ctx_bindinfo_view binding;
 805                 struct vmw_resource *view = NULL;
 806
 807                 if (view_ids[i] != SVGA3D_INVALID_ID) {
 808                         view = vmw_view_id_val_add(sw_context, view_type,
 809                                                    view_ids[i]);
 810                         if (IS_ERR(view)) {
 811                                 VMW_DEBUG_USER("View not found.\n");
 812                                 return PTR_ERR(view);
 813                         }
 814                 }
 815                 binding.bi.ctx = ctx_node->ctx;
 816                 binding.bi.res = view;
 817                 binding.bi.bt = binding_type;
 818                 binding.shader_slot = shader_slot;
 819                 binding.slot = first_slot + i;
 820                 vmw_binding_add(ctx_node->staged, &binding.bi,
 821                                 shader_slot, binding.slot);
 822         }
 823
 824         return 0;
 825 }
 826
 827 /**
 828  * vmw_cmd_cid_check - Check a command header for valid context information.
 829  *
 830  * @dev_priv: Pointer to a device private structure.
 831  * @sw_context: Pointer to the software context.
 832  * @header: A command header with an embedded user-space context handle.
 833  *
 834  * Convenience function: Call vmw_cmd_res_check with the user-space context
 835  * handle embedded in @header.
 836  */
 837 static int vmw_cmd_cid_check(struct vmw_private *dev_priv,
 838                              struct vmw_sw_context *sw_context,
 839                              SVGA3dCmdHeader *header)
 840 {
 841         VMW_DECLARE_CMD_VAR(*cmd, uint32_t) =
 842                 container_of(header, typeof(*cmd), header);
 843
 844         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
 845                                  VMW_RES_DIRTY_SET, user_context_converter,
 846                                  &cmd->body, NULL);
 847 }
 848
 849 /**
 850  * vmw_execbuf_info_from_res - Get the private validation metadata for a
 851  * recently validated resource
 852  *
 853  * @sw_context: Pointer to the command submission context
 854  * @res: The resource
 855  *
 856  * The resource pointed to by @res needs to be present in the command submission
 857  * context's resource cache and hence the last resource of that type to be
 858  * processed by the validation code.
 859  *
 860  * Return: a pointer to the private metadata of the resource, or NULL if it
 861  * wasn't found
 862  */
 863 static struct vmw_ctx_validation_info *
 864 vmw_execbuf_info_from_res(struct vmw_sw_context *sw_context,
 865                           struct vmw_resource *res)
 866 {
 867         struct vmw_res_cache_entry *rcache =
 868                 &sw_context->res_cache[vmw_res_type(res)];
 869
 870         if (rcache->valid && rcache->res == res)
 871                 return rcache->private;
 872
 873         WARN_ON_ONCE(true);
 874         return NULL;
 875 }
 876
 877 static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv,
 878                                            struct vmw_sw_context *sw_context,
 879                                            SVGA3dCmdHeader *header)
 880 {
 881         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetRenderTarget);
 882         struct vmw_resource *ctx;
 883         struct vmw_resource *res;
 884         int ret;
 885
 886         cmd = container_of(header, typeof(*cmd), header);
 887
 888         if (cmd->body.type >= SVGA3D_RT_MAX) {
 889                 VMW_DEBUG_USER("Illegal render target type %u.\n",
 890                                (unsigned int) cmd->body.type);
 891                 return -EINVAL;
 892         }
 893
 894         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
 895                                 VMW_RES_DIRTY_SET, user_context_converter,
 896                                 &cmd->body.cid, &ctx);
 897         if (unlikely(ret != 0))
 898                 return ret;
 899
 900         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 901                                 VMW_RES_DIRTY_SET, user_surface_converter,
 902                                 &cmd->body.target.sid, &res);
 903         if (unlikely(ret))
 904                 return ret;
 905
 906         if (dev_priv->has_mob) {
 907                 struct vmw_ctx_bindinfo_view binding;
 908                 struct vmw_ctx_validation_info *node;
 909
 910                 node = vmw_execbuf_info_from_res(sw_context, ctx);
 911                 if (!node)
 912                         return -EINVAL;
 913
 914                 binding.bi.ctx = ctx;
 915                 binding.bi.res = res;
 916                 binding.bi.bt = vmw_ctx_binding_rt;
 917                 binding.slot = cmd->body.type;
 918                 vmw_binding_add(node->staged, &binding.bi, 0, binding.slot);
 919         }
 920
 921         return 0;
 922 }
 923
 924 static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv,
 925                                       struct vmw_sw_context *sw_context,
 926                                       SVGA3dCmdHeader *header)
 927 {
 928         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceCopy);
 929         int ret;
 930
 931         cmd = container_of(header, typeof(*cmd), header);
 932
 933         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 934                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 935                                 &cmd->body.src.sid, NULL);
 936         if (ret)
 937                 return ret;
 938
 939         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 940                                  VMW_RES_DIRTY_SET, user_surface_converter,
 941                                  &cmd->body.dest.sid, NULL);
 942 }
 943
 944 static int vmw_cmd_buffer_copy_check(struct vmw_private *dev_priv,
 945                                      struct vmw_sw_context *sw_context,
 946                                      SVGA3dCmdHeader *header)
 947 {
 948         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBufferCopy);
 949         int ret;
 950
 951         cmd = container_of(header, typeof(*cmd), header);
 952         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 953                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 954                                 &cmd->body.src, NULL);
 955         if (ret != 0)
 956                 return ret;
 957
 958         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 959                                  VMW_RES_DIRTY_SET, user_surface_converter,
 960                                  &cmd->body.dest, NULL);
 961 }
 962
 963 static int vmw_cmd_pred_copy_check(struct vmw_private *dev_priv,
 964                                    struct vmw_sw_context *sw_context,
 965                                    SVGA3dCmdHeader *header)
 966 {
 967         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXPredCopyRegion);
 968         int ret;
 969
 970         cmd = container_of(header, typeof(*cmd), header);
 971         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 972                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 973                                 &cmd->body.srcSid, NULL);
 974         if (ret != 0)
 975                 return ret;
 976
 977         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 978                                  VMW_RES_DIRTY_SET, user_surface_converter,
 979                                  &cmd->body.dstSid, NULL);
 980 }
 981
 982 static int vmw_cmd_stretch_blt_check(struct vmw_private *dev_priv,
 983                                      struct vmw_sw_context *sw_context,
 984                                      SVGA3dCmdHeader *header)
 985 {
 986         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceStretchBlt);
 987         int ret;
 988
 989         cmd = container_of(header, typeof(*cmd), header);
 990         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 991                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 992                                 &cmd->body.src.sid, NULL);
 993         if (unlikely(ret != 0))
 994                 return ret;
 995
 996         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 997                                  VMW_RES_DIRTY_SET, user_surface_converter,
 998                                  &cmd->body.dest.sid, NULL);
 999 }
1000
1001 static int vmw_cmd_blt_surf_screen_check(struct vmw_private *dev_priv,
1002                                          struct vmw_sw_context *sw_context,
1003                                          SVGA3dCmdHeader *header)
1004 {
1005         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBlitSurfaceToScreen) =
1006                 container_of(header, typeof(*cmd), header);
1007
1008         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1009                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1010                                  &cmd->body.srcImage.sid, NULL);
1011 }
1012
1013 static int vmw_cmd_present_check(struct vmw_private *dev_priv,
1014                                  struct vmw_sw_context *sw_context,
1015                                  SVGA3dCmdHeader *header)
1016 {
1017         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdPresent) =
1018                 container_of(header, typeof(*cmd), header);
1019
1020         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1021                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1022                                  &cmd->body.sid, NULL);
1023 }
1024
1025 /**
1026  * vmw_query_bo_switch_prepare - Prepare to switch pinned buffer for queries.
1027  *
1028  * @dev_priv: The device private structure.
1029  * @new_query_bo: The new buffer holding query results.
1030  * @sw_context: The software context used for this command submission.
1031  *
1032  * This function checks whether @new_query_bo is suitable for holding query
1033  * results, and if another buffer currently is pinned for query results. If so,
1034  * the function prepares the state of @sw_context for switching pinned buffers
1035  * after successful submission of the current command batch.
1036  */
1037 static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
1038                                        struct vmw_buffer_object *new_query_bo,
1039                                        struct vmw_sw_context *sw_context)
1040 {
1041         struct vmw_res_cache_entry *ctx_entry =
1042                 &sw_context->res_cache[vmw_res_context];
1043         int ret;
1044
1045         BUG_ON(!ctx_entry->valid);
1046         sw_context->last_query_ctx = ctx_entry->res;
1047
1048         if (unlikely(new_query_bo != sw_context->cur_query_bo)) {
1049
1050                 if (unlikely(new_query_bo->base.resource->num_pages > 4)) {
1051                         VMW_DEBUG_USER("Query buffer too large.\n");
1052                         return -EINVAL;
1053                 }
1054
1055                 if (unlikely(sw_context->cur_query_bo != NULL)) {
1056                         sw_context->needs_post_query_barrier = true;
1057                         ret = vmw_validation_add_bo(sw_context->ctx,
1058                                                     sw_context->cur_query_bo,
1059                                                     dev_priv->has_mob, false);
1060                         if (unlikely(ret != 0))
1061                                 return ret;
1062                 }
1063                 sw_context->cur_query_bo = new_query_bo;
1064
1065                 ret = vmw_validation_add_bo(sw_context->ctx,
1066                                             dev_priv->dummy_query_bo,
1067                                             dev_priv->has_mob, false);
1068                 if (unlikely(ret != 0))
1069                         return ret;
1070         }
1071
1072         return 0;
1073 }
1074
1075 /**
1076  * vmw_query_bo_switch_commit - Finalize switching pinned query buffer
1077  *
1078  * @dev_priv: The device private structure.
1079  * @sw_context: The software context used for this command submission batch.
1080  *
1081  * This function will check if we're switching query buffers, and will then,
1082  * issue a dummy occlusion query wait used as a query barrier. When the fence
1083  * object following that query wait has signaled, we are sure that all preceding
1084  * queries have finished, and the old query buffer can be unpinned. However,
1085  * since both the new query buffer and the old one are fenced with that fence,
1086  * we can do an asynchronus unpin now, and be sure that the old query buffer
1087  * won't be moved until the fence has signaled.
1088  *
1089  * As mentioned above, both the new - and old query buffers need to be fenced
1090  * using a sequence emitted *after* calling this function.
1091  */
1092 static void vmw_query_bo_switch_commit(struct vmw_private *dev_priv,
1093                                      struct vmw_sw_context *sw_context)
1094 {
1095         /*
1096          * The validate list should still hold references to all
1097          * contexts here.
1098          */
1099         if (sw_context->needs_post_query_barrier) {
1100                 struct vmw_res_cache_entry *ctx_entry =
1101                         &sw_context->res_cache[vmw_res_context];
1102                 struct vmw_resource *ctx;
1103                 int ret;
1104
1105                 BUG_ON(!ctx_entry->valid);
1106                 ctx = ctx_entry->res;
1107
1108                 ret = vmw_cmd_emit_dummy_query(dev_priv, ctx->id);
1109
1110                 if (unlikely(ret != 0))
1111                         VMW_DEBUG_USER("Out of fifo space for dummy query.\n");
1112         }
1113
1114         if (dev_priv->pinned_bo != sw_context->cur_query_bo) {
1115                 if (dev_priv->pinned_bo) {
1116                         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
1117                         vmw_bo_unreference(&dev_priv->pinned_bo);
1118                 }
1119
1120                 if (!sw_context->needs_post_query_barrier) {
1121                         vmw_bo_pin_reserved(sw_context->cur_query_bo, true);
1122
1123                         /*
1124                          * We pin also the dummy_query_bo buffer so that we
1125                          * don't need to validate it when emitting dummy queries
1126                          * in context destroy paths.
1127                          */
1128                         if (!dev_priv->dummy_query_bo_pinned) {
1129                                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo,
1130                                                     true);
1131                                 dev_priv->dummy_query_bo_pinned = true;
1132                         }
1133
1134                         BUG_ON(sw_context->last_query_ctx == NULL);
1135                         dev_priv->query_cid = sw_context->last_query_ctx->id;
1136                         dev_priv->query_cid_valid = true;
1137                         dev_priv->pinned_bo =
1138                                 vmw_bo_reference(sw_context->cur_query_bo);
1139                 }
1140         }
1141 }
1142
1143 /**
1144  * vmw_translate_mob_ptr - Prepare to translate a user-space buffer handle
1145  * to a MOB id.
1146  *
1147  * @dev_priv: Pointer to a device private structure.
1148  * @sw_context: The software context used for this command batch validation.
1149  * @id: Pointer to the user-space handle to be translated.
1150  * @vmw_bo_p: Points to a location that, on successful return will carry a
1151  * non-reference-counted pointer to the buffer object identified by the
1152  * user-space handle in @id.
1153  *
1154  * This function saves information needed to translate a user-space buffer
1155  * handle to a MOB id. The translation does not take place immediately, but
1156  * during a call to vmw_apply_relocations().
1157  *
1158  * This function builds a relocation list and a list of buffers to validate. The
1159  * former needs to be freed using either vmw_apply_relocations() or
1160  * vmw_free_relocations(). The latter needs to be freed using
1161  * vmw_clear_validations.
1162  */
1163 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
1164                                  struct vmw_sw_context *sw_context,
1165                                  SVGAMobId *id,
1166                                  struct vmw_buffer_object **vmw_bo_p)
1167 {
1168         struct vmw_buffer_object *vmw_bo;
1169         uint32_t handle = *id;
1170         struct vmw_relocation *reloc;
1171         int ret;
1172
1173         vmw_validation_preload_bo(sw_context->ctx);
1174         vmw_bo = vmw_user_bo_noref_lookup(sw_context->filp, handle);
1175         if (IS_ERR_OR_NULL(vmw_bo)) {
1176                 VMW_DEBUG_USER("Could not find or use MOB buffer.\n");
1177                 return PTR_ERR(vmw_bo);
1178         }
1179         ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, true, false);
1180         ttm_bo_put(&vmw_bo->base);
1181         if (unlikely(ret != 0))
1182                 return ret;
1183
1184         reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
1185         if (!reloc)
1186                 return -ENOMEM;
1187
1188         reloc->mob_loc = id;
1189         reloc->vbo = vmw_bo;
1190
1191         *vmw_bo_p = vmw_bo;
1192         list_add_tail(&reloc->head, &sw_context->bo_relocations);
1193
1194         return 0;
1195 }
1196
1197 /**
1198  * vmw_translate_guest_ptr - Prepare to translate a user-space buffer handle
1199  * to a valid SVGAGuestPtr
1200  *
1201  * @dev_priv: Pointer to a device private structure.
1202  * @sw_context: The software context used for this command batch validation.
1203  * @ptr: Pointer to the user-space handle to be translated.
1204  * @vmw_bo_p: Points to a location that, on successful return will carry a
1205  * non-reference-counted pointer to the DMA buffer identified by the user-space
1206  * handle in @id.
1207  *
1208  * This function saves information needed to translate a user-space buffer
1209  * handle to a valid SVGAGuestPtr. The translation does not take place
1210  * immediately, but during a call to vmw_apply_relocations().
1211  *
1212  * This function builds a relocation list and a list of buffers to validate.
1213  * The former needs to be freed using either vmw_apply_relocations() or
1214  * vmw_free_relocations(). The latter needs to be freed using
1215  * vmw_clear_validations.
1216  */
1217 static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
1218                                    struct vmw_sw_context *sw_context,
1219                                    SVGAGuestPtr *ptr,
1220                                    struct vmw_buffer_object **vmw_bo_p)
1221 {
1222         struct vmw_buffer_object *vmw_bo;
1223         uint32_t handle = ptr->gmrId;
1224         struct vmw_relocation *reloc;
1225         int ret;
1226
1227         vmw_validation_preload_bo(sw_context->ctx);
1228         vmw_bo = vmw_user_bo_noref_lookup(sw_context->filp, handle);
1229         if (IS_ERR_OR_NULL(vmw_bo)) {
1230                 VMW_DEBUG_USER("Could not find or use GMR region.\n");
1231                 return PTR_ERR(vmw_bo);
1232         }
1233         ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, false, false);
1234         ttm_bo_put(&vmw_bo->base);
1235         if (unlikely(ret != 0))
1236                 return ret;
1237
1238         reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
1239         if (!reloc)
1240                 return -ENOMEM;
1241
1242         reloc->location = ptr;
1243         reloc->vbo = vmw_bo;
1244         *vmw_bo_p = vmw_bo;
1245         list_add_tail(&reloc->head, &sw_context->bo_relocations);
1246
1247         return 0;
1248 }
1249
1250 /**
1251  * vmw_cmd_dx_define_query - validate SVGA_3D_CMD_DX_DEFINE_QUERY command.
1252  *
1253  * @dev_priv: Pointer to a device private struct.
1254  * @sw_context: The software context used for this command submission.
1255  * @header: Pointer to the command header in the command stream.
1256  *
1257  * This function adds the new query into the query COTABLE
1258  */
1259 static int vmw_cmd_dx_define_query(struct vmw_private *dev_priv,
1260                                    struct vmw_sw_context *sw_context,
1261                                    SVGA3dCmdHeader *header)
1262 {
1263         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineQuery);
1264         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
1265         struct vmw_resource *cotable_res;
1266         int ret;
1267
1268         if (!ctx_node)
1269                 return -EINVAL;
1270
1271         cmd = container_of(header, typeof(*cmd), header);
1272
1273         if (cmd->body.type <  SVGA3D_QUERYTYPE_MIN ||
1274             cmd->body.type >= SVGA3D_QUERYTYPE_MAX)
1275                 return -EINVAL;
1276
1277         cotable_res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXQUERY);
1278         ret = vmw_cotable_notify(cotable_res, cmd->body.queryId);
1279
1280         return ret;
1281 }
1282
1283 /**
1284  * vmw_cmd_dx_bind_query - validate SVGA_3D_CMD_DX_BIND_QUERY command.
1285  *
1286  * @dev_priv: Pointer to a device private struct.
1287  * @sw_context: The software context used for this command submission.
1288  * @header: Pointer to the command header in the command stream.
1289  *
1290  * The query bind operation will eventually associate the query ID with its
1291  * backing MOB.  In this function, we take the user mode MOB ID and use
1292  * vmw_translate_mob_ptr() to translate it to its kernel mode equivalent.
1293  */
1294 static int vmw_cmd_dx_bind_query(struct vmw_private *dev_priv,
1295                                  struct vmw_sw_context *sw_context,
1296                                  SVGA3dCmdHeader *header)
1297 {
1298         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindQuery);
1299         struct vmw_buffer_object *vmw_bo;
1300         int ret;
1301
1302         cmd = container_of(header, typeof(*cmd), header);
1303
1304         /*
1305          * Look up the buffer pointed to by q.mobid, put it on the relocation
1306          * list so its kernel mode MOB ID can be filled in later
1307          */
1308         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1309                                     &vmw_bo);
1310
1311         if (ret != 0)
1312                 return ret;
1313
1314         sw_context->dx_query_mob = vmw_bo;
1315         sw_context->dx_query_ctx = sw_context->dx_ctx_node->ctx;
1316         return 0;
1317 }
1318
1319 /**
1320  * vmw_cmd_begin_gb_query - validate SVGA_3D_CMD_BEGIN_GB_QUERY command.
1321  *
1322  * @dev_priv: Pointer to a device private struct.
1323  * @sw_context: The software context used for this command submission.
1324  * @header: Pointer to the command header in the command stream.
1325  */
1326 static int vmw_cmd_begin_gb_query(struct vmw_private *dev_priv,
1327                                   struct vmw_sw_context *sw_context,
1328                                   SVGA3dCmdHeader *header)
1329 {
1330         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginGBQuery) =
1331                 container_of(header, typeof(*cmd), header);
1332
1333         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1334                                  VMW_RES_DIRTY_SET, user_context_converter,
1335                                  &cmd->body.cid, NULL);
1336 }
1337
1338 /**
1339  * vmw_cmd_begin_query - validate SVGA_3D_CMD_BEGIN_QUERY command.
1340  *
1341  * @dev_priv: Pointer to a device private struct.
1342  * @sw_context: The software context used for this command submission.
1343  * @header: Pointer to the command header in the command stream.
1344  */
1345 static int vmw_cmd_begin_query(struct vmw_private *dev_priv,
1346                                struct vmw_sw_context *sw_context,
1347                                SVGA3dCmdHeader *header)
1348 {
1349         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginQuery) =
1350                 container_of(header, typeof(*cmd), header);
1351
1352         if (unlikely(dev_priv->has_mob)) {
1353                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdBeginGBQuery);
1354
1355                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1356
1357                 gb_cmd.header.id = SVGA_3D_CMD_BEGIN_GB_QUERY;
1358                 gb_cmd.header.size = cmd->header.size;
1359                 gb_cmd.body.cid = cmd->body.cid;
1360                 gb_cmd.body.type = cmd->body.type;
1361
1362                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1363                 return vmw_cmd_begin_gb_query(dev_priv, sw_context, header);
1364         }
1365
1366         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1367                                  VMW_RES_DIRTY_SET, user_context_converter,
1368                                  &cmd->body.cid, NULL);
1369 }
1370
1371 /**
1372  * vmw_cmd_end_gb_query - validate SVGA_3D_CMD_END_GB_QUERY command.
1373  *
1374  * @dev_priv: Pointer to a device private struct.
1375  * @sw_context: The software context used for this command submission.
1376  * @header: Pointer to the command header in the command stream.
1377  */
1378 static int vmw_cmd_end_gb_query(struct vmw_private *dev_priv,
1379                                 struct vmw_sw_context *sw_context,
1380                                 SVGA3dCmdHeader *header)
1381 {
1382         struct vmw_buffer_object *vmw_bo;
1383         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndGBQuery);
1384         int ret;
1385
1386         cmd = container_of(header, typeof(*cmd), header);
1387         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1388         if (unlikely(ret != 0))
1389                 return ret;
1390
1391         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1392                                     &vmw_bo);
1393         if (unlikely(ret != 0))
1394                 return ret;
1395
1396         ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
1397
1398         return ret;
1399 }
1400
1401 /**
1402  * vmw_cmd_end_query - validate SVGA_3D_CMD_END_QUERY command.
1403  *
1404  * @dev_priv: Pointer to a device private struct.
1405  * @sw_context: The software context used for this command submission.
1406  * @header: Pointer to the command header in the command stream.
1407  */
1408 static int vmw_cmd_end_query(struct vmw_private *dev_priv,
1409                              struct vmw_sw_context *sw_context,
1410                              SVGA3dCmdHeader *header)
1411 {
1412         struct vmw_buffer_object *vmw_bo;
1413         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndQuery);
1414         int ret;
1415
1416         cmd = container_of(header, typeof(*cmd), header);
1417         if (dev_priv->has_mob) {
1418                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdEndGBQuery);
1419
1420                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1421
1422                 gb_cmd.header.id = SVGA_3D_CMD_END_GB_QUERY;
1423                 gb_cmd.header.size = cmd->header.size;
1424                 gb_cmd.body.cid = cmd->body.cid;
1425                 gb_cmd.body.type = cmd->body.type;
1426                 gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
1427                 gb_cmd.body.offset = cmd->body.guestResult.offset;
1428
1429                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1430                 return vmw_cmd_end_gb_query(dev_priv, sw_context, header);
1431         }
1432
1433         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1434         if (unlikely(ret != 0))
1435                 return ret;
1436
1437         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1438                                       &cmd->body.guestResult, &vmw_bo);
1439         if (unlikely(ret != 0))
1440                 return ret;
1441
1442         ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
1443
1444         return ret;
1445 }
1446
1447 /**
1448  * vmw_cmd_wait_gb_query - validate SVGA_3D_CMD_WAIT_GB_QUERY command.
1449  *
1450  * @dev_priv: Pointer to a device private struct.
1451  * @sw_context: The software context used for this command submission.
1452  * @header: Pointer to the command header in the command stream.
1453  */
1454 static int vmw_cmd_wait_gb_query(struct vmw_private *dev_priv,
1455                                  struct vmw_sw_context *sw_context,
1456                                  SVGA3dCmdHeader *header)
1457 {
1458         struct vmw_buffer_object *vmw_bo;
1459         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForGBQuery);
1460         int ret;
1461
1462         cmd = container_of(header, typeof(*cmd), header);
1463         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1464         if (unlikely(ret != 0))
1465                 return ret;
1466
1467         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1468                                     &vmw_bo);
1469         if (unlikely(ret != 0))
1470                 return ret;
1471
1472         return 0;
1473 }
1474
1475 /**
1476  * vmw_cmd_wait_query - validate SVGA_3D_CMD_WAIT_QUERY command.
1477  *
1478  * @dev_priv: Pointer to a device private struct.
1479  * @sw_context: The software context used for this command submission.
1480  * @header: Pointer to the command header in the command stream.
1481  */
1482 static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
1483                               struct vmw_sw_context *sw_context,
1484                               SVGA3dCmdHeader *header)
1485 {
1486         struct vmw_buffer_object *vmw_bo;
1487         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForQuery);
1488         int ret;
1489
1490         cmd = container_of(header, typeof(*cmd), header);
1491         if (dev_priv->has_mob) {
1492                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdWaitForGBQuery);
1493
1494                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1495
1496                 gb_cmd.header.id = SVGA_3D_CMD_WAIT_FOR_GB_QUERY;
1497                 gb_cmd.header.size = cmd->header.size;
1498                 gb_cmd.body.cid = cmd->body.cid;
1499                 gb_cmd.body.type = cmd->body.type;
1500                 gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
1501                 gb_cmd.body.offset = cmd->body.guestResult.offset;
1502
1503                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1504                 return vmw_cmd_wait_gb_query(dev_priv, sw_context, header);
1505         }
1506
1507         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1508         if (unlikely(ret != 0))
1509                 return ret;
1510
1511         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1512                                       &cmd->body.guestResult, &vmw_bo);
1513         if (unlikely(ret != 0))
1514                 return ret;
1515
1516         return 0;
1517 }
1518
1519 static int vmw_cmd_dma(struct vmw_private *dev_priv,
1520                        struct vmw_sw_context *sw_context,
1521                        SVGA3dCmdHeader *header)
1522 {
1523         struct vmw_buffer_object *vmw_bo = NULL;
1524         struct vmw_surface *srf = NULL;
1525         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceDMA);
1526         int ret;
1527         SVGA3dCmdSurfaceDMASuffix *suffix;
1528         uint32_t bo_size;
1529         bool dirty;
1530
1531         cmd = container_of(header, typeof(*cmd), header);
1532         suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->body +
1533                                                header->size - sizeof(*suffix));
1534
1535         /* Make sure device and verifier stays in sync. */
1536         if (unlikely(suffix->suffixSize != sizeof(*suffix))) {
1537                 VMW_DEBUG_USER("Invalid DMA suffix size.\n");
1538                 return -EINVAL;
1539         }
1540
1541         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1542                                       &cmd->body.guest.ptr, &vmw_bo);
1543         if (unlikely(ret != 0))
1544                 return ret;
1545
1546         /* Make sure DMA doesn't cross BO boundaries. */
1547         bo_size = vmw_bo->base.base.size;
1548         if (unlikely(cmd->body.guest.ptr.offset > bo_size)) {
1549                 VMW_DEBUG_USER("Invalid DMA offset.\n");
1550                 return -EINVAL;
1551         }
1552
1553         bo_size -= cmd->body.guest.ptr.offset;
1554         if (unlikely(suffix->maximumOffset > bo_size))
1555                 suffix->maximumOffset = bo_size;
1556
1557         dirty = (cmd->body.transfer == SVGA3D_WRITE_HOST_VRAM) ?
1558                 VMW_RES_DIRTY_SET : 0;
1559         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1560                                 dirty, user_surface_converter,
1561                                 &cmd->body.host.sid, NULL);
1562         if (unlikely(ret != 0)) {
1563                 if (unlikely(ret != -ERESTARTSYS))
1564                         VMW_DEBUG_USER("could not find surface for DMA.\n");
1565                 return ret;
1566         }
1567
1568         srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res);
1569
1570         vmw_kms_cursor_snoop(srf, sw_context->fp->tfile, &vmw_bo->base, header);
1571
1572         return 0;
1573 }
1574
1575 static int vmw_cmd_draw(struct vmw_private *dev_priv,
1576                         struct vmw_sw_context *sw_context,
1577                         SVGA3dCmdHeader *header)
1578 {
1579         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDrawPrimitives);
1580         SVGA3dVertexDecl *decl = (SVGA3dVertexDecl *)(
1581                 (unsigned long)header + sizeof(*cmd));
1582         SVGA3dPrimitiveRange *range;
1583         uint32_t i;
1584         uint32_t maxnum;
1585         int ret;
1586
1587         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1588         if (unlikely(ret != 0))
1589                 return ret;
1590
1591         cmd = container_of(header, typeof(*cmd), header);
1592         maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);
1593
1594         if (unlikely(cmd->body.numVertexDecls > maxnum)) {
1595                 VMW_DEBUG_USER("Illegal number of vertex declarations.\n");
1596                 return -EINVAL;
1597         }
1598
1599         for (i = 0; i < cmd->body.numVertexDecls; ++i, ++decl) {
1600                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1601                                         VMW_RES_DIRTY_NONE,
1602                                         user_surface_converter,
1603                                         &decl->array.surfaceId, NULL);
1604                 if (unlikely(ret != 0))
1605                         return ret;
1606         }
1607
1608         maxnum = (header->size - sizeof(cmd->body) -
1609                   cmd->body.numVertexDecls * sizeof(*decl)) / sizeof(*range);
1610         if (unlikely(cmd->body.numRanges > maxnum)) {
1611                 VMW_DEBUG_USER("Illegal number of index ranges.\n");
1612                 return -EINVAL;
1613         }
1614
1615         range = (SVGA3dPrimitiveRange *) decl;
1616         for (i = 0; i < cmd->body.numRanges; ++i, ++range) {
1617                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1618                                         VMW_RES_DIRTY_NONE,
1619                                         user_surface_converter,
1620                                         &range->indexArray.surfaceId, NULL);
1621                 if (unlikely(ret != 0))
1622                         return ret;
1623         }
1624         return 0;
1625 }
1626
1627 static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
1628                              struct vmw_sw_context *sw_context,
1629                              SVGA3dCmdHeader *header)
1630 {
1631         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetTextureState);
1632         SVGA3dTextureState *last_state = (SVGA3dTextureState *)
1633           ((unsigned long) header + header->size + sizeof(header));
1634         SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
1635                 ((unsigned long) header + sizeof(*cmd));
1636         struct vmw_resource *ctx;
1637         struct vmw_resource *res;
1638         int ret;
1639
1640         cmd = container_of(header, typeof(*cmd), header);
1641
1642         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1643                                 VMW_RES_DIRTY_SET, user_context_converter,
1644                                 &cmd->body.cid, &ctx);
1645         if (unlikely(ret != 0))
1646                 return ret;
1647
1648         for (; cur_state < last_state; ++cur_state) {
1649                 if (likely(cur_state->name != SVGA3D_TS_BIND_TEXTURE))
1650                         continue;
1651
1652                 if (cur_state->stage >= SVGA3D_NUM_TEXTURE_UNITS) {
1653                         VMW_DEBUG_USER("Illegal texture/sampler unit %u.\n",
1654                                        (unsigned int) cur_state->stage);
1655                         return -EINVAL;
1656                 }
1657
1658                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1659                                         VMW_RES_DIRTY_NONE,
1660                                         user_surface_converter,
1661                                         &cur_state->value, &res);
1662                 if (unlikely(ret != 0))
1663                         return ret;
1664
1665                 if (dev_priv->has_mob) {
1666                         struct vmw_ctx_bindinfo_tex binding;
1667                         struct vmw_ctx_validation_info *node;
1668
1669                         node = vmw_execbuf_info_from_res(sw_context, ctx);
1670                         if (!node)
1671                                 return -EINVAL;
1672
1673                         binding.bi.ctx = ctx;
1674                         binding.bi.res = res;
1675                         binding.bi.bt = vmw_ctx_binding_tex;
1676                         binding.texture_stage = cur_state->stage;
1677                         vmw_binding_add(node->staged, &binding.bi, 0,
1678                                         binding.texture_stage);
1679                 }
1680         }
1681
1682         return 0;
1683 }
1684
1685 static int vmw_cmd_check_define_gmrfb(struct vmw_private *dev_priv,
1686                                       struct vmw_sw_context *sw_context,
1687                                       void *buf)
1688 {
1689         struct vmw_buffer_object *vmw_bo;
1690
1691         struct {
1692                 uint32_t header;
1693                 SVGAFifoCmdDefineGMRFB body;
1694         } *cmd = buf;
1695
1696         return vmw_translate_guest_ptr(dev_priv, sw_context, &cmd->body.ptr,
1697                                        &vmw_bo);
1698 }
1699
1700 /**
1701  * vmw_cmd_res_switch_backup - Utility function to handle backup buffer
1702  * switching
1703  *
1704  * @dev_priv: Pointer to a device private struct.
1705  * @sw_context: The software context being used for this batch.
1706  * @res: Pointer to the resource.
1707  * @buf_id: Pointer to the user-space backup buffer handle in the command
1708  * stream.
1709  * @backup_offset: Offset of backup into MOB.
1710  *
1711  * This function prepares for registering a switch of backup buffers in the
1712  * resource metadata just prior to unreserving. It's basically a wrapper around
1713  * vmw_cmd_res_switch_backup with a different interface.
1714  */
1715 static int vmw_cmd_res_switch_backup(struct vmw_private *dev_priv,
1716                                      struct vmw_sw_context *sw_context,
1717                                      struct vmw_resource *res, uint32_t *buf_id,
1718                                      unsigned long backup_offset)
1719 {
1720         struct vmw_buffer_object *vbo;
1721         void *info;
1722         int ret;
1723
1724         info = vmw_execbuf_info_from_res(sw_context, res);
1725         if (!info)
1726                 return -EINVAL;
1727
1728         ret = vmw_translate_mob_ptr(dev_priv, sw_context, buf_id, &vbo);
1729         if (ret)
1730                 return ret;
1731
1732         vmw_validation_res_switch_backup(sw_context->ctx, info, vbo,
1733                                          backup_offset);
1734         return 0;
1735 }
1736
1737 /**
1738  * vmw_cmd_switch_backup - Utility function to handle backup buffer switching
1739  *
1740  * @dev_priv: Pointer to a device private struct.
1741  * @sw_context: The software context being used for this batch.
1742  * @res_type: The resource type.
1743  * @converter: Information about user-space binding for this resource type.
1744  * @res_id: Pointer to the user-space resource handle in the command stream.
1745  * @buf_id: Pointer to the user-space backup buffer handle in the command
1746  * stream.
1747  * @backup_offset: Offset of backup into MOB.
1748  *
1749  * This function prepares for registering a switch of backup buffers in the
1750  * resource metadata just prior to unreserving. It's basically a wrapper around
1751  * vmw_cmd_res_switch_backup with a different interface.
1752  */
1753 static int vmw_cmd_switch_backup(struct vmw_private *dev_priv,
1754                                  struct vmw_sw_context *sw_context,
1755                                  enum vmw_res_type res_type,
1756                                  const struct vmw_user_resource_conv
1757                                  *converter, uint32_t *res_id, uint32_t *buf_id,
1758                                  unsigned long backup_offset)
1759 {
1760         struct vmw_resource *res;
1761         int ret;
1762
1763         ret = vmw_cmd_res_check(dev_priv, sw_context, res_type,
1764                                 VMW_RES_DIRTY_NONE, converter, res_id, &res);
1765         if (ret)
1766                 return ret;
1767
1768         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res, buf_id,
1769                                          backup_offset);
1770 }
1771
1772 /**
1773  * vmw_cmd_bind_gb_surface - Validate SVGA_3D_CMD_BIND_GB_SURFACE command
1774  *
1775  * @dev_priv: Pointer to a device private struct.
1776  * @sw_context: The software context being used for this batch.
1777  * @header: Pointer to the command header in the command stream.
1778  */
1779 static int vmw_cmd_bind_gb_surface(struct vmw_private *dev_priv,
1780                                    struct vmw_sw_context *sw_context,
1781                                    SVGA3dCmdHeader *header)
1782 {
1783         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBSurface) =
1784                 container_of(header, typeof(*cmd), header);
1785
1786         return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_surface,
1787                                      user_surface_converter, &cmd->body.sid,
1788                                      &cmd->body.mobid, 0);
1789 }
1790
1791 /**
1792  * vmw_cmd_update_gb_image - Validate SVGA_3D_CMD_UPDATE_GB_IMAGE command
1793  *
1794  * @dev_priv: Pointer to a device private struct.
1795  * @sw_context: The software context being used for this batch.
1796  * @header: Pointer to the command header in the command stream.
1797  */
1798 static int vmw_cmd_update_gb_image(struct vmw_private *dev_priv,
1799                                    struct vmw_sw_context *sw_context,
1800                                    SVGA3dCmdHeader *header)
1801 {
1802         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBImage) =
1803                 container_of(header, typeof(*cmd), header);
1804
1805         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1806                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1807                                  &cmd->body.image.sid, NULL);
1808 }
1809
1810 /**
1811  * vmw_cmd_update_gb_surface - Validate SVGA_3D_CMD_UPDATE_GB_SURFACE command
1812  *
1813  * @dev_priv: Pointer to a device private struct.
1814  * @sw_context: The software context being used for this batch.
1815  * @header: Pointer to the command header in the command stream.
1816  */
1817 static int vmw_cmd_update_gb_surface(struct vmw_private *dev_priv,
1818                                      struct vmw_sw_context *sw_context,
1819                                      SVGA3dCmdHeader *header)
1820 {
1821         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBSurface) =
1822                 container_of(header, typeof(*cmd), header);
1823
1824         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1825                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1826                                  &cmd->body.sid, NULL);
1827 }
1828
1829 /**
1830  * vmw_cmd_readback_gb_image - Validate SVGA_3D_CMD_READBACK_GB_IMAGE command
1831  *
1832  * @dev_priv: Pointer to a device private struct.
1833  * @sw_context: The software context being used for this batch.
1834  * @header: Pointer to the command header in the command stream.
1835  */
1836 static int vmw_cmd_readback_gb_image(struct vmw_private *dev_priv,
1837                                      struct vmw_sw_context *sw_context,
1838                                      SVGA3dCmdHeader *header)
1839 {
1840         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBImage) =
1841                 container_of(header, typeof(*cmd), header);
1842
1843         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1844                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1845                                  &cmd->body.image.sid, NULL);
1846 }
1847
1848 /**
1849  * vmw_cmd_readback_gb_surface - Validate SVGA_3D_CMD_READBACK_GB_SURFACE
1850  * command
1851  *
1852  * @dev_priv: Pointer to a device private struct.
1853  * @sw_context: The software context being used for this batch.
1854  * @header: Pointer to the command header in the command stream.
1855  */
1856 static int vmw_cmd_readback_gb_surface(struct vmw_private *dev_priv,
1857                                        struct vmw_sw_context *sw_context,
1858                                        SVGA3dCmdHeader *header)
1859 {
1860         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBSurface) =
1861                 container_of(header, typeof(*cmd), header);
1862
1863         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1864                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1865                                  &cmd->body.sid, NULL);
1866 }
1867
1868 /**
1869  * vmw_cmd_invalidate_gb_image - Validate SVGA_3D_CMD_INVALIDATE_GB_IMAGE
1870  * command
1871  *
1872  * @dev_priv: Pointer to a device private struct.
1873  * @sw_context: The software context being used for this batch.
1874  * @header: Pointer to the command header in the command stream.
1875  */
1876 static int vmw_cmd_invalidate_gb_image(struct vmw_private *dev_priv,
1877                                        struct vmw_sw_context *sw_context,
1878                                        SVGA3dCmdHeader *header)
1879 {
1880         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBImage) =
1881                 container_of(header, typeof(*cmd), header);
1882
1883         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1884                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1885                                  &cmd->body.image.sid, NULL);
1886 }
1887
1888 /**
1889  * vmw_cmd_invalidate_gb_surface - Validate SVGA_3D_CMD_INVALIDATE_GB_SURFACE
1890  * command
1891  *
1892  * @dev_priv: Pointer to a device private struct.
1893  * @sw_context: The software context being used for this batch.
1894  * @header: Pointer to the command header in the command stream.
1895  */
1896 static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
1897                                          struct vmw_sw_context *sw_context,
1898                                          SVGA3dCmdHeader *header)
1899 {
1900         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBSurface) =
1901                 container_of(header, typeof(*cmd), header);
1902
1903         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1904                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1905                                  &cmd->body.sid, NULL);
1906 }
1907
1908 /**
1909  * vmw_cmd_shader_define - Validate SVGA_3D_CMD_SHADER_DEFINE command
1910  *
1911  * @dev_priv: Pointer to a device private struct.
1912  * @sw_context: The software context being used for this batch.
1913  * @header: Pointer to the command header in the command stream.
1914  */
1915 static int vmw_cmd_shader_define(struct vmw_private *dev_priv,
1916                                  struct vmw_sw_context *sw_context,
1917                                  SVGA3dCmdHeader *header)
1918 {
1919         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDefineShader);
1920         int ret;
1921         size_t size;
1922         struct vmw_resource *ctx;
1923
1924         cmd = container_of(header, typeof(*cmd), header);
1925
1926         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1927                                 VMW_RES_DIRTY_SET, user_context_converter,
1928                                 &cmd->body.cid, &ctx);
1929         if (unlikely(ret != 0))
1930                 return ret;
1931
1932         if (unlikely(!dev_priv->has_mob))
1933                 return 0;
1934
1935         size = cmd->header.size - sizeof(cmd->body);
1936         ret = vmw_compat_shader_add(dev_priv, vmw_context_res_man(ctx),
1937                                     cmd->body.shid, cmd + 1, cmd->body.type,
1938                                     size, &sw_context->staged_cmd_res);
1939         if (unlikely(ret != 0))
1940                 return ret;
1941
1942         return vmw_resource_relocation_add(sw_context, NULL,
1943                                            vmw_ptr_diff(sw_context->buf_start,
1944                                                         &cmd->header.id),
1945                                            vmw_res_rel_nop);
1946 }
1947
1948 /**
1949  * vmw_cmd_shader_destroy - Validate SVGA_3D_CMD_SHADER_DESTROY command
1950  *
1951  * @dev_priv: Pointer to a device private struct.
1952  * @sw_context: The software context being used for this batch.
1953  * @header: Pointer to the command header in the command stream.
1954  */
1955 static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv,
1956                                   struct vmw_sw_context *sw_context,
1957                                   SVGA3dCmdHeader *header)
1958 {
1959         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDestroyShader);
1960         int ret;
1961         struct vmw_resource *ctx;
1962
1963         cmd = container_of(header, typeof(*cmd), header);
1964
1965         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1966                                 VMW_RES_DIRTY_SET, user_context_converter,
1967                                 &cmd->body.cid, &ctx);
1968         if (unlikely(ret != 0))
1969                 return ret;
1970
1971         if (unlikely(!dev_priv->has_mob))
1972                 return 0;
1973
1974         ret = vmw_shader_remove(vmw_context_res_man(ctx), cmd->body.shid,
1975                                 cmd->body.type, &sw_context->staged_cmd_res);
1976         if (unlikely(ret != 0))
1977                 return ret;
1978
1979         return vmw_resource_relocation_add(sw_context, NULL,
1980                                            vmw_ptr_diff(sw_context->buf_start,
1981                                                         &cmd->header.id),
1982                                            vmw_res_rel_nop);
1983 }
1984
1985 /**
1986  * vmw_cmd_set_shader - Validate SVGA_3D_CMD_SET_SHADER command
1987  *
1988  * @dev_priv: Pointer to a device private struct.
1989  * @sw_context: The software context being used for this batch.
1990  * @header: Pointer to the command header in the command stream.
1991  */
1992 static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
1993                               struct vmw_sw_context *sw_context,
1994                               SVGA3dCmdHeader *header)
1995 {
1996         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShader);
1997         struct vmw_ctx_bindinfo_shader binding;
1998         struct vmw_resource *ctx, *res = NULL;
1999         struct vmw_ctx_validation_info *ctx_info;
2000         int ret;
2001
2002         cmd = container_of(header, typeof(*cmd), header);
2003
2004         if (cmd->body.type >= SVGA3D_SHADERTYPE_PREDX_MAX) {
2005                 VMW_DEBUG_USER("Illegal shader type %u.\n",
2006                                (unsigned int) cmd->body.type);
2007                 return -EINVAL;
2008         }
2009
2010         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2011                                 VMW_RES_DIRTY_SET, user_context_converter,
2012                                 &cmd->body.cid, &ctx);
2013         if (unlikely(ret != 0))
2014                 return ret;
2015
2016         if (!dev_priv->has_mob)
2017                 return 0;
2018
2019         if (cmd->body.shid != SVGA3D_INVALID_ID) {
2020                 /*
2021                  * This is the compat shader path - Per device guest-backed
2022                  * shaders, but user-space thinks it's per context host-
2023                  * backed shaders.
2024                  */
2025                 res = vmw_shader_lookup(vmw_context_res_man(ctx),
2026                                         cmd->body.shid, cmd->body.type);
2027                 if (!IS_ERR(res)) {
2028                         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2029                                                             VMW_RES_DIRTY_NONE);
2030                         if (unlikely(ret != 0))
2031                                 return ret;
2032
2033                         ret = vmw_resource_relocation_add
2034                                 (sw_context, res,
2035                                  vmw_ptr_diff(sw_context->buf_start,
2036                                               &cmd->body.shid),
2037                                  vmw_res_rel_normal);
2038                         if (unlikely(ret != 0))
2039                                 return ret;
2040                 }
2041         }
2042
2043         if (IS_ERR_OR_NULL(res)) {
2044                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
2045                                         VMW_RES_DIRTY_NONE,
2046                                         user_shader_converter, &cmd->body.shid,
2047                                         &res);
2048                 if (unlikely(ret != 0))
2049                         return ret;
2050         }
2051
2052         ctx_info = vmw_execbuf_info_from_res(sw_context, ctx);
2053         if (!ctx_info)
2054                 return -EINVAL;
2055
2056         binding.bi.ctx = ctx;
2057         binding.bi.res = res;
2058         binding.bi.bt = vmw_ctx_binding_shader;
2059         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2060         vmw_binding_add(ctx_info->staged, &binding.bi, binding.shader_slot, 0);
2061
2062         return 0;
2063 }
2064
2065 /**
2066  * vmw_cmd_set_shader_const - Validate SVGA_3D_CMD_SET_SHADER_CONST command
2067  *
2068  * @dev_priv: Pointer to a device private struct.
2069  * @sw_context: The software context being used for this batch.
2070  * @header: Pointer to the command header in the command stream.
2071  */
2072 static int vmw_cmd_set_shader_const(struct vmw_private *dev_priv,
2073                                     struct vmw_sw_context *sw_context,
2074                                     SVGA3dCmdHeader *header)
2075 {
2076         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShaderConst);
2077         int ret;
2078
2079         cmd = container_of(header, typeof(*cmd), header);
2080
2081         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2082                                 VMW_RES_DIRTY_SET, user_context_converter,
2083                                 &cmd->body.cid, NULL);
2084         if (unlikely(ret != 0))
2085                 return ret;
2086
2087         if (dev_priv->has_mob)
2088                 header->id = SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE;
2089
2090         return 0;
2091 }
2092
2093 /**
2094  * vmw_cmd_bind_gb_shader - Validate SVGA_3D_CMD_BIND_GB_SHADER command
2095  *
2096  * @dev_priv: Pointer to a device private struct.
2097  * @sw_context: The software context being used for this batch.
2098  * @header: Pointer to the command header in the command stream.
2099  */
2100 static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv,
2101                                   struct vmw_sw_context *sw_context,
2102                                   SVGA3dCmdHeader *header)
2103 {
2104         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBShader) =
2105                 container_of(header, typeof(*cmd), header);
2106
2107         return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader,
2108                                      user_shader_converter, &cmd->body.shid,
2109                                      &cmd->body.mobid, cmd->body.offsetInBytes);
2110 }
2111
2112 /**
2113  * vmw_cmd_dx_set_single_constant_buffer - Validate
2114  * SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER command.
2115  *
2116  * @dev_priv: Pointer to a device private struct.
2117  * @sw_context: The software context being used for this batch.
2118  * @header: Pointer to the command header in the command stream.
2119  */
2120 static int
2121 vmw_cmd_dx_set_single_constant_buffer(struct vmw_private *dev_priv,
2122                                       struct vmw_sw_context *sw_context,
2123                                       SVGA3dCmdHeader *header)
2124 {
2125         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetSingleConstantBuffer);
2126         SVGA3dShaderType max_shader_num = has_sm5_context(dev_priv) ?
2127                 SVGA3D_NUM_SHADERTYPE : SVGA3D_NUM_SHADERTYPE_DX10;
2128
2129         struct vmw_resource *res = NULL;
2130         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2131         struct vmw_ctx_bindinfo_cb binding;
2132         int ret;
2133
2134         if (!ctx_node)
2135                 return -EINVAL;
2136
2137         cmd = container_of(header, typeof(*cmd), header);
2138         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2139                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2140                                 &cmd->body.sid, &res);
2141         if (unlikely(ret != 0))
2142                 return ret;
2143
2144         binding.bi.ctx = ctx_node->ctx;
2145         binding.bi.res = res;
2146         binding.bi.bt = vmw_ctx_binding_cb;
2147         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2148         binding.offset = cmd->body.offsetInBytes;
2149         binding.size = cmd->body.sizeInBytes;
2150         binding.slot = cmd->body.slot;
2151
2152         if (binding.shader_slot >= max_shader_num ||
2153             binding.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
2154                 VMW_DEBUG_USER("Illegal const buffer shader %u slot %u.\n",
2155                                (unsigned int) cmd->body.type,
2156                                (unsigned int) binding.slot);
2157                 return -EINVAL;
2158         }
2159
2160         vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot,
2161                         binding.slot);
2162
2163         return 0;
2164 }
2165
2166 /**
2167  * vmw_cmd_dx_set_constant_buffer_offset - Validate
2168  * SVGA_3D_CMD_DX_SET_VS/PS/GS/HS/DS/CS_CONSTANT_BUFFER_OFFSET command.
2169  *
2170  * @dev_priv: Pointer to a device private struct.
2171  * @sw_context: The software context being used for this batch.
2172  * @header: Pointer to the command header in the command stream.
2173  */
2174 static int
2175 vmw_cmd_dx_set_constant_buffer_offset(struct vmw_private *dev_priv,
2176                                       struct vmw_sw_context *sw_context,
2177                                       SVGA3dCmdHeader *header)
2178 {
2179         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetConstantBufferOffset);
2180
2181         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2182         u32 shader_slot;
2183
2184         if (!has_sm5_context(dev_priv))
2185                 return -EINVAL;
2186
2187         if (!ctx_node)
2188                 return -EINVAL;
2189
2190         cmd = container_of(header, typeof(*cmd), header);
2191         if (cmd->body.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
2192                 VMW_DEBUG_USER("Illegal const buffer slot %u.\n",
2193                                (unsigned int) cmd->body.slot);
2194                 return -EINVAL;
2195         }
2196
2197         shader_slot = cmd->header.id - SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET;
2198         vmw_binding_cb_offset_update(ctx_node->staged, shader_slot,
2199                                      cmd->body.slot, cmd->body.offsetInBytes);
2200
2201         return 0;
2202 }
2203
2204 /**
2205  * vmw_cmd_dx_set_shader_res - Validate SVGA_3D_CMD_DX_SET_SHADER_RESOURCES
2206  * command
2207  *
2208  * @dev_priv: Pointer to a device private struct.
2209  * @sw_context: The software context being used for this batch.
2210  * @header: Pointer to the command header in the command stream.
2211  */
2212 static int vmw_cmd_dx_set_shader_res(struct vmw_private *dev_priv,
2213                                      struct vmw_sw_context *sw_context,
2214                                      SVGA3dCmdHeader *header)
2215 {
2216         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShaderResources) =
2217                 container_of(header, typeof(*cmd), header);
2218         SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
2219                 SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
2220
2221         u32 num_sr_view = (cmd->header.size - sizeof(cmd->body)) /
2222                 sizeof(SVGA3dShaderResourceViewId);
2223
2224         if ((u64) cmd->body.startView + (u64) num_sr_view >
2225             (u64) SVGA3D_DX_MAX_SRVIEWS ||
2226             cmd->body.type >= max_allowed) {
2227                 VMW_DEBUG_USER("Invalid shader binding.\n");
2228                 return -EINVAL;
2229         }
2230
2231         return vmw_view_bindings_add(sw_context, vmw_view_sr,
2232                                      vmw_ctx_binding_sr,
2233                                      cmd->body.type - SVGA3D_SHADERTYPE_MIN,
2234                                      (void *) &cmd[1], num_sr_view,
2235                                      cmd->body.startView);
2236 }
2237
2238 /**
2239  * vmw_cmd_dx_set_shader - Validate SVGA_3D_CMD_DX_SET_SHADER command
2240  *
2241  * @dev_priv: Pointer to a device private struct.
2242  * @sw_context: The software context being used for this batch.
2243  * @header: Pointer to the command header in the command stream.
2244  */
2245 static int vmw_cmd_dx_set_shader(struct vmw_private *dev_priv,
2246                                  struct vmw_sw_context *sw_context,
2247                                  SVGA3dCmdHeader *header)
2248 {
2249         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShader);
2250         SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
2251                 SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
2252         struct vmw_resource *res = NULL;
2253         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2254         struct vmw_ctx_bindinfo_shader binding;
2255         int ret = 0;
2256
2257         if (!ctx_node)
2258                 return -EINVAL;
2259
2260         cmd = container_of(header, typeof(*cmd), header);
2261
2262         if (cmd->body.type >= max_allowed ||
2263             cmd->body.type < SVGA3D_SHADERTYPE_MIN) {
2264                 VMW_DEBUG_USER("Illegal shader type %u.\n",
2265                                (unsigned int) cmd->body.type);
2266                 return -EINVAL;
2267         }
2268
2269         if (cmd->body.shaderId != SVGA3D_INVALID_ID) {
2270                 res = vmw_shader_lookup(sw_context->man, cmd->body.shaderId, 0);
2271                 if (IS_ERR(res)) {
2272                         VMW_DEBUG_USER("Could not find shader for binding.\n");
2273                         return PTR_ERR(res);
2274                 }
2275
2276                 ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2277                                                     VMW_RES_DIRTY_NONE);
2278                 if (ret)
2279                         return ret;
2280         }
2281
2282         binding.bi.ctx = ctx_node->ctx;
2283         binding.bi.res = res;
2284         binding.bi.bt = vmw_ctx_binding_dx_shader;
2285         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2286
2287         vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot, 0);
2288
2289         return 0;
2290 }
2291
2292 /**
2293  * vmw_cmd_dx_set_vertex_buffers - Validates SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS
2294  * command
2295  *
2296  * @dev_priv: Pointer to a device private struct.
2297  * @sw_context: The software context being used for this batch.
2298  * @header: Pointer to the command header in the command stream.
2299  */
2300 static int vmw_cmd_dx_set_vertex_buffers(struct vmw_private *dev_priv,
2301                                          struct vmw_sw_context *sw_context,
2302                                          SVGA3dCmdHeader *header)
2303 {
2304         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2305         struct vmw_ctx_bindinfo_vb binding;
2306         struct vmw_resource *res;
2307         struct {
2308                 SVGA3dCmdHeader header;
2309                 SVGA3dCmdDXSetVertexBuffers body;
2310                 SVGA3dVertexBuffer buf[];
2311         } *cmd;
2312         int i, ret, num;
2313
2314         if (!ctx_node)
2315                 return -EINVAL;
2316
2317         cmd = container_of(header, typeof(*cmd), header);
2318         num = (cmd->header.size - sizeof(cmd->body)) /
2319                 sizeof(SVGA3dVertexBuffer);
2320         if ((u64)num + (u64)cmd->body.startBuffer >
2321             (u64)SVGA3D_DX_MAX_VERTEXBUFFERS) {
2322                 VMW_DEBUG_USER("Invalid number of vertex buffers.\n");
2323                 return -EINVAL;
2324         }
2325
2326         for (i = 0; i < num; i++) {
2327                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2328                                         VMW_RES_DIRTY_NONE,
2329                                         user_surface_converter,
2330                                         &cmd->buf[i].sid, &res);
2331                 if (unlikely(ret != 0))
2332                         return ret;
2333
2334                 binding.bi.ctx = ctx_node->ctx;
2335                 binding.bi.bt = vmw_ctx_binding_vb;
2336                 binding.bi.res = res;
2337                 binding.offset = cmd->buf[i].offset;
2338                 binding.stride = cmd->buf[i].stride;
2339                 binding.slot = i + cmd->body.startBuffer;
2340
2341                 vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
2342         }
2343
2344         return 0;
2345 }
2346
2347 /**
2348  * vmw_cmd_dx_set_index_buffer - Validate
2349  * SVGA_3D_CMD_DX_IA_SET_INDEX_BUFFER command.
2350  *
2351  * @dev_priv: Pointer to a device private struct.
2352  * @sw_context: The software context being used for this batch.
2353  * @header: Pointer to the command header in the command stream.
2354  */
2355 static int vmw_cmd_dx_set_index_buffer(struct vmw_private *dev_priv,
2356                                        struct vmw_sw_context *sw_context,
2357                                        SVGA3dCmdHeader *header)
2358 {
2359         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2360         struct vmw_ctx_bindinfo_ib binding;
2361         struct vmw_resource *res;
2362         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetIndexBuffer);
2363         int ret;
2364
2365         if (!ctx_node)
2366                 return -EINVAL;
2367
2368         cmd = container_of(header, typeof(*cmd), header);
2369         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2370                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2371                                 &cmd->body.sid, &res);
2372         if (unlikely(ret != 0))
2373                 return ret;
2374
2375         binding.bi.ctx = ctx_node->ctx;
2376         binding.bi.res = res;
2377         binding.bi.bt = vmw_ctx_binding_ib;
2378         binding.offset = cmd->body.offset;
2379         binding.format = cmd->body.format;
2380
2381         vmw_binding_add(ctx_node->staged, &binding.bi, 0, 0);
2382
2383         return 0;
2384 }
2385
2386 /**
2387  * vmw_cmd_dx_set_rendertargets - Validate SVGA_3D_CMD_DX_SET_RENDERTARGETS
2388  * command
2389  *
2390  * @dev_priv: Pointer to a device private struct.
2391  * @sw_context: The software context being used for this batch.
2392  * @header: Pointer to the command header in the command stream.
2393  */
2394 static int vmw_cmd_dx_set_rendertargets(struct vmw_private *dev_priv,
2395                                         struct vmw_sw_context *sw_context,
2396                                         SVGA3dCmdHeader *header)
2397 {
2398         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetRenderTargets) =
2399                 container_of(header, typeof(*cmd), header);
2400         u32 num_rt_view = (cmd->header.size - sizeof(cmd->body)) /
2401                 sizeof(SVGA3dRenderTargetViewId);
2402         int ret;
2403
2404         if (num_rt_view > SVGA3D_DX_MAX_RENDER_TARGETS) {
2405                 VMW_DEBUG_USER("Invalid DX Rendertarget binding.\n");
2406                 return -EINVAL;
2407         }
2408
2409         ret = vmw_view_bindings_add(sw_context, vmw_view_ds, vmw_ctx_binding_ds,
2410                                     0, &cmd->body.depthStencilViewId, 1, 0);
2411         if (ret)
2412                 return ret;
2413
2414         return vmw_view_bindings_add(sw_context, vmw_view_rt,
2415                                      vmw_ctx_binding_dx_rt, 0, (void *)&cmd[1],
2416                                      num_rt_view, 0);
2417 }
2418
2419 /**
2420  * vmw_cmd_dx_clear_rendertarget_view - Validate
2421  * SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW command
2422  *
2423  * @dev_priv: Pointer to a device private struct.
2424  * @sw_context: The software context being used for this batch.
2425  * @header: Pointer to the command header in the command stream.
2426  */
2427 static int vmw_cmd_dx_clear_rendertarget_view(struct vmw_private *dev_priv,
2428                                               struct vmw_sw_context *sw_context,
2429                                               SVGA3dCmdHeader *header)
2430 {
2431         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearRenderTargetView) =
2432                 container_of(header, typeof(*cmd), header);
2433         struct vmw_resource *ret;
2434
2435         ret = vmw_view_id_val_add(sw_context, vmw_view_rt,
2436                                   cmd->body.renderTargetViewId);
2437
2438         return PTR_ERR_OR_ZERO(ret);
2439 }
2440
2441 /**
2442  * vmw_cmd_dx_clear_depthstencil_view - Validate
2443  * SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW command
2444  *
2445  * @dev_priv: Pointer to a device private struct.
2446  * @sw_context: The software context being used for this batch.
2447  * @header: Pointer to the command header in the command stream.
2448  */
2449 static int vmw_cmd_dx_clear_depthstencil_view(struct vmw_private *dev_priv,
2450                                               struct vmw_sw_context *sw_context,
2451                                               SVGA3dCmdHeader *header)
2452 {
2453         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearDepthStencilView) =
2454                 container_of(header, typeof(*cmd), header);
2455         struct vmw_resource *ret;
2456
2457         ret = vmw_view_id_val_add(sw_context, vmw_view_ds,
2458                                   cmd->body.depthStencilViewId);
2459
2460         return PTR_ERR_OR_ZERO(ret);
2461 }
2462
2463 static int vmw_cmd_dx_view_define(struct vmw_private *dev_priv,
2464                                   struct vmw_sw_context *sw_context,
2465                                   SVGA3dCmdHeader *header)
2466 {
2467         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2468         struct vmw_resource *srf;
2469         struct vmw_resource *res;
2470         enum vmw_view_type view_type;
2471         int ret;
2472         /*
2473          * This is based on the fact that all affected define commands have the
2474          * same initial command body layout.
2475          */
2476         struct {
2477                 SVGA3dCmdHeader header;
2478                 uint32 defined_id;
2479                 uint32 sid;
2480         } *cmd;
2481
2482         if (!ctx_node)
2483                 return -EINVAL;
2484
2485         view_type = vmw_view_cmd_to_type(header->id);
2486         if (view_type == vmw_view_max)
2487                 return -EINVAL;
2488
2489         cmd = container_of(header, typeof(*cmd), header);
2490         if (unlikely(cmd->sid == SVGA3D_INVALID_ID)) {
2491                 VMW_DEBUG_USER("Invalid surface id.\n");
2492                 return -EINVAL;
2493         }
2494         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2495                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2496                                 &cmd->sid, &srf);
2497         if (unlikely(ret != 0))
2498                 return ret;
2499
2500         res = vmw_context_cotable(ctx_node->ctx, vmw_view_cotables[view_type]);
2501         ret = vmw_cotable_notify(res, cmd->defined_id);
2502         if (unlikely(ret != 0))
2503                 return ret;
2504
2505         return vmw_view_add(sw_context->man, ctx_node->ctx, srf, view_type,
2506                             cmd->defined_id, header,
2507                             header->size + sizeof(*header),
2508                             &sw_context->staged_cmd_res);
2509 }
2510
2511 /**
2512  * vmw_cmd_dx_set_so_targets - Validate SVGA_3D_CMD_DX_SET_SOTARGETS command.
2513  *
2514  * @dev_priv: Pointer to a device private struct.
2515  * @sw_context: The software context being used for this batch.
2516  * @header: Pointer to the command header in the command stream.
2517  */
2518 static int vmw_cmd_dx_set_so_targets(struct vmw_private *dev_priv,
2519                                      struct vmw_sw_context *sw_context,
2520                                      SVGA3dCmdHeader *header)
2521 {
2522         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2523         struct vmw_ctx_bindinfo_so_target binding;
2524         struct vmw_resource *res;
2525         struct {
2526                 SVGA3dCmdHeader header;
2527                 SVGA3dCmdDXSetSOTargets body;
2528                 SVGA3dSoTarget targets[];
2529         } *cmd;
2530         int i, ret, num;
2531
2532         if (!ctx_node)
2533                 return -EINVAL;
2534
2535         cmd = container_of(header, typeof(*cmd), header);
2536         num = (cmd->header.size - sizeof(cmd->body)) / sizeof(SVGA3dSoTarget);
2537
2538         if (num > SVGA3D_DX_MAX_SOTARGETS) {
2539                 VMW_DEBUG_USER("Invalid DX SO binding.\n");
2540                 return -EINVAL;
2541         }
2542
2543         for (i = 0; i < num; i++) {
2544                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2545                                         VMW_RES_DIRTY_SET,
2546                                         user_surface_converter,
2547                                         &cmd->targets[i].sid, &res);
2548                 if (unlikely(ret != 0))
2549                         return ret;
2550
2551                 binding.bi.ctx = ctx_node->ctx;
2552                 binding.bi.res = res;
2553                 binding.bi.bt = vmw_ctx_binding_so_target;
2554                 binding.offset = cmd->targets[i].offset;
2555                 binding.size = cmd->targets[i].sizeInBytes;
2556                 binding.slot = i;
2557
2558                 vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
2559         }
2560
2561         return 0;
2562 }
2563
2564 static int vmw_cmd_dx_so_define(struct vmw_private *dev_priv,
2565                                 struct vmw_sw_context *sw_context,
2566                                 SVGA3dCmdHeader *header)
2567 {
2568         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2569         struct vmw_resource *res;
2570         /*
2571          * This is based on the fact that all affected define commands have
2572          * the same initial command body layout.
2573          */
2574         struct {
2575                 SVGA3dCmdHeader header;
2576                 uint32 defined_id;
2577         } *cmd;
2578         enum vmw_so_type so_type;
2579         int ret;
2580
2581         if (!ctx_node)
2582                 return -EINVAL;
2583
2584         so_type = vmw_so_cmd_to_type(header->id);
2585         res = vmw_context_cotable(ctx_node->ctx, vmw_so_cotables[so_type]);
2586         if (IS_ERR(res))
2587                 return PTR_ERR(res);
2588         cmd = container_of(header, typeof(*cmd), header);
2589         ret = vmw_cotable_notify(res, cmd->defined_id);
2590
2591         return ret;
2592 }
2593
2594 /**
2595  * vmw_cmd_dx_check_subresource - Validate SVGA_3D_CMD_DX_[X]_SUBRESOURCE
2596  * command
2597  *
2598  * @dev_priv: Pointer to a device private struct.
2599  * @sw_context: The software context being used for this batch.
2600  * @header: Pointer to the command header in the command stream.
2601  */
2602 static int vmw_cmd_dx_check_subresource(struct vmw_private *dev_priv,
2603                                         struct vmw_sw_context *sw_context,
2604                                         SVGA3dCmdHeader *header)
2605 {
2606         struct {
2607                 SVGA3dCmdHeader header;
2608                 union {
2609                         SVGA3dCmdDXReadbackSubResource r_body;
2610                         SVGA3dCmdDXInvalidateSubResource i_body;
2611                         SVGA3dCmdDXUpdateSubResource u_body;
2612                         SVGA3dSurfaceId sid;
2613                 };
2614         } *cmd;
2615
2616         BUILD_BUG_ON(offsetof(typeof(*cmd), r_body.sid) !=
2617                      offsetof(typeof(*cmd), sid));
2618         BUILD_BUG_ON(offsetof(typeof(*cmd), i_body.sid) !=
2619                      offsetof(typeof(*cmd), sid));
2620         BUILD_BUG_ON(offsetof(typeof(*cmd), u_body.sid) !=
2621                      offsetof(typeof(*cmd), sid));
2622
2623         cmd = container_of(header, typeof(*cmd), header);
2624         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2625                                  VMW_RES_DIRTY_NONE, user_surface_converter,
2626                                  &cmd->sid, NULL);
2627 }
2628
2629 static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv,
2630                                 struct vmw_sw_context *sw_context,
2631                                 SVGA3dCmdHeader *header)
2632 {
2633         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2634
2635         if (!ctx_node)
2636                 return -EINVAL;
2637
2638         return 0;
2639 }
2640
2641 /**
2642  * vmw_cmd_dx_view_remove - validate a view remove command and schedule the view
2643  * resource for removal.
2644  *
2645  * @dev_priv: Pointer to a device private struct.
2646  * @sw_context: The software context being used for this batch.
2647  * @header: Pointer to the command header in the command stream.
2648  *
2649  * Check that the view exists, and if it was not created using this command
2650  * batch, conditionally make this command a NOP.
2651  */
2652 static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv,
2653                                   struct vmw_sw_context *sw_context,
2654                                   SVGA3dCmdHeader *header)
2655 {
2656         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2657         struct {
2658                 SVGA3dCmdHeader header;
2659                 union vmw_view_destroy body;
2660         } *cmd = container_of(header, typeof(*cmd), header);
2661         enum vmw_view_type view_type = vmw_view_cmd_to_type(header->id);
2662         struct vmw_resource *view;
2663         int ret;
2664
2665         if (!ctx_node)
2666                 return -EINVAL;
2667
2668         ret = vmw_view_remove(sw_context->man, cmd->body.view_id, view_type,
2669                               &sw_context->staged_cmd_res, &view);
2670         if (ret || !view)
2671                 return ret;
2672
2673         /*
2674          * If the view wasn't created during this command batch, it might
2675          * have been removed due to a context swapout, so add a
2676          * relocation to conditionally make this command a NOP to avoid
2677          * device errors.
2678          */
2679         return vmw_resource_relocation_add(sw_context, view,
2680                                            vmw_ptr_diff(sw_context->buf_start,
2681                                                         &cmd->header.id),
2682                                            vmw_res_rel_cond_nop);
2683 }
2684
2685 /**
2686  * vmw_cmd_dx_define_shader - Validate SVGA_3D_CMD_DX_DEFINE_SHADER command
2687  *
2688  * @dev_priv: Pointer to a device private struct.
2689  * @sw_context: The software context being used for this batch.
2690  * @header: Pointer to the command header in the command stream.
2691  */
2692 static int vmw_cmd_dx_define_shader(struct vmw_private *dev_priv,
2693                                     struct vmw_sw_context *sw_context,
2694                                     SVGA3dCmdHeader *header)
2695 {
2696         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2697         struct vmw_resource *res;
2698         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineShader) =
2699                 container_of(header, typeof(*cmd), header);
2700         int ret;
2701
2702         if (!ctx_node)
2703                 return -EINVAL;
2704
2705         res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXSHADER);
2706         ret = vmw_cotable_notify(res, cmd->body.shaderId);
2707         if (ret)
2708                 return ret;
2709
2710         return vmw_dx_shader_add(sw_context->man, ctx_node->ctx,
2711                                  cmd->body.shaderId, cmd->body.type,
2712                                  &sw_context->staged_cmd_res);
2713 }
2714
2715 /**
2716  * vmw_cmd_dx_destroy_shader - Validate SVGA_3D_CMD_DX_DESTROY_SHADER command
2717  *
2718  * @dev_priv: Pointer to a device private struct.
2719  * @sw_context: The software context being used for this batch.
2720  * @header: Pointer to the command header in the command stream.
2721  */
2722 static int vmw_cmd_dx_destroy_shader(struct vmw_private *dev_priv,
2723                                      struct vmw_sw_context *sw_context,
2724                                      SVGA3dCmdHeader *header)
2725 {
2726         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2727         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDestroyShader) =
2728                 container_of(header, typeof(*cmd), header);
2729         int ret;
2730
2731         if (!ctx_node)
2732                 return -EINVAL;
2733
2734         ret = vmw_shader_remove(sw_context->man, cmd->body.shaderId, 0,
2735                                 &sw_context->staged_cmd_res);
2736
2737         return ret;
2738 }
2739
2740 /**
2741  * vmw_cmd_dx_bind_shader - Validate SVGA_3D_CMD_DX_BIND_SHADER command
2742  *
2743  * @dev_priv: Pointer to a device private struct.
2744  * @sw_context: The software context being used for this batch.
2745  * @header: Pointer to the command header in the command stream.
2746  */
2747 static int vmw_cmd_dx_bind_shader(struct vmw_private *dev_priv,
2748                                   struct vmw_sw_context *sw_context,
2749                                   SVGA3dCmdHeader *header)
2750 {
2751         struct vmw_resource *ctx;
2752         struct vmw_resource *res;
2753         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindShader) =
2754                 container_of(header, typeof(*cmd), header);
2755         int ret;
2756
2757         if (cmd->body.cid != SVGA3D_INVALID_ID) {
2758                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2759                                         VMW_RES_DIRTY_SET,
2760                                         user_context_converter, &cmd->body.cid,
2761                                         &ctx);
2762                 if (ret)
2763                         return ret;
2764         } else {
2765                 struct vmw_ctx_validation_info *ctx_node =
2766                         VMW_GET_CTX_NODE(sw_context);
2767
2768                 if (!ctx_node)
2769                         return -EINVAL;
2770
2771                 ctx = ctx_node->ctx;
2772         }
2773
2774         res = vmw_shader_lookup(vmw_context_res_man(ctx), cmd->body.shid, 0);
2775         if (IS_ERR(res)) {
2776                 VMW_DEBUG_USER("Could not find shader to bind.\n");
2777                 return PTR_ERR(res);
2778         }
2779
2780         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2781                                             VMW_RES_DIRTY_NONE);
2782         if (ret) {
2783                 VMW_DEBUG_USER("Error creating resource validation node.\n");
2784                 return ret;
2785         }
2786
2787         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
2788                                          &cmd->body.mobid,
2789                                          cmd->body.offsetInBytes);
2790 }
2791
2792 /**
2793  * vmw_cmd_dx_genmips - Validate SVGA_3D_CMD_DX_GENMIPS command
2794  *
2795  * @dev_priv: Pointer to a device private struct.
2796  * @sw_context: The software context being used for this batch.
2797  * @header: Pointer to the command header in the command stream.
2798  */
2799 static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv,
2800                               struct vmw_sw_context *sw_context,
2801                               SVGA3dCmdHeader *header)
2802 {
2803         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXGenMips) =
2804                 container_of(header, typeof(*cmd), header);
2805         struct vmw_resource *view;
2806         struct vmw_res_cache_entry *rcache;
2807
2808         view = vmw_view_id_val_add(sw_context, vmw_view_sr,
2809                                    cmd->body.shaderResourceViewId);
2810         if (IS_ERR(view))
2811                 return PTR_ERR(view);
2812
2813         /*
2814          * Normally the shader-resource view is not gpu-dirtying, but for
2815          * this particular command it is...
2816          * So mark the last looked-up surface, which is the surface
2817          * the view points to, gpu-dirty.
2818          */
2819         rcache = &sw_context->res_cache[vmw_res_surface];
2820         vmw_validation_res_set_dirty(sw_context->ctx, rcache->private,
2821                                      VMW_RES_DIRTY_SET);
2822         return 0;
2823 }
2824
2825 /**
2826  * vmw_cmd_dx_transfer_from_buffer - Validate
2827  * SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
2828  *
2829  * @dev_priv: Pointer to a device private struct.
2830  * @sw_context: The software context being used for this batch.
2831  * @header: Pointer to the command header in the command stream.
2832  */
2833 static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv,
2834                                            struct vmw_sw_context *sw_context,
2835                                            SVGA3dCmdHeader *header)
2836 {
2837         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXTransferFromBuffer) =
2838                 container_of(header, typeof(*cmd), header);
2839         int ret;
2840
2841         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2842                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2843                                 &cmd->body.srcSid, NULL);
2844         if (ret != 0)
2845                 return ret;
2846
2847         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2848                                  VMW_RES_DIRTY_SET, user_surface_converter,
2849                                  &cmd->body.destSid, NULL);
2850 }
2851
2852 /**
2853  * vmw_cmd_intra_surface_copy - Validate SVGA_3D_CMD_INTRA_SURFACE_COPY command
2854  *
2855  * @dev_priv: Pointer to a device private struct.
2856  * @sw_context: The software context being used for this batch.
2857  * @header: Pointer to the command header in the command stream.
2858  */
2859 static int vmw_cmd_intra_surface_copy(struct vmw_private *dev_priv,
2860                                            struct vmw_sw_context *sw_context,
2861                                            SVGA3dCmdHeader *header)
2862 {
2863         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdIntraSurfaceCopy) =
2864                 container_of(header, typeof(*cmd), header);
2865
2866         if (!(dev_priv->capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY))
2867                 return -EINVAL;
2868
2869         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2870                                  VMW_RES_DIRTY_SET, user_surface_converter,
2871                                  &cmd->body.surface.sid, NULL);
2872 }
2873
2874 static int vmw_cmd_sm5(struct vmw_private *dev_priv,
2875                        struct vmw_sw_context *sw_context,
2876                        SVGA3dCmdHeader *header)
2877 {
2878         if (!has_sm5_context(dev_priv))
2879                 return -EINVAL;
2880
2881         return 0;
2882 }
2883
2884 static int vmw_cmd_sm5_view_define(struct vmw_private *dev_priv,
2885                                    struct vmw_sw_context *sw_context,
2886                                    SVGA3dCmdHeader *header)
2887 {
2888         if (!has_sm5_context(dev_priv))
2889                 return -EINVAL;
2890
2891         return vmw_cmd_dx_view_define(dev_priv, sw_context, header);
2892 }
2893
2894 static int vmw_cmd_sm5_view_remove(struct vmw_private *dev_priv,
2895                                    struct vmw_sw_context *sw_context,
2896                                    SVGA3dCmdHeader *header)
2897 {
2898         if (!has_sm5_context(dev_priv))
2899                 return -EINVAL;
2900
2901         return vmw_cmd_dx_view_remove(dev_priv, sw_context, header);
2902 }
2903
2904 static int vmw_cmd_clear_uav_uint(struct vmw_private *dev_priv,
2905                                   struct vmw_sw_context *sw_context,
2906                                   SVGA3dCmdHeader *header)
2907 {
2908         struct {
2909                 SVGA3dCmdHeader header;
2910                 SVGA3dCmdDXClearUAViewUint body;
2911         } *cmd = container_of(header, typeof(*cmd), header);
2912         struct vmw_resource *ret;
2913
2914         if (!has_sm5_context(dev_priv))
2915                 return -EINVAL;
2916
2917         ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
2918                                   cmd->body.uaViewId);
2919
2920         return PTR_ERR_OR_ZERO(ret);
2921 }
2922
2923 static int vmw_cmd_clear_uav_float(struct vmw_private *dev_priv,
2924                                    struct vmw_sw_context *sw_context,
2925                                    SVGA3dCmdHeader *header)
2926 {
2927         struct {
2928                 SVGA3dCmdHeader header;
2929                 SVGA3dCmdDXClearUAViewFloat body;
2930         } *cmd = container_of(header, typeof(*cmd), header);
2931         struct vmw_resource *ret;
2932
2933         if (!has_sm5_context(dev_priv))
2934                 return -EINVAL;
2935
2936         ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
2937                                   cmd->body.uaViewId);
2938
2939         return PTR_ERR_OR_ZERO(ret);
2940 }
2941
2942 static int vmw_cmd_set_uav(struct vmw_private *dev_priv,
2943                            struct vmw_sw_context *sw_context,
2944                            SVGA3dCmdHeader *header)
2945 {
2946         struct {
2947                 SVGA3dCmdHeader header;
2948                 SVGA3dCmdDXSetUAViews body;
2949         } *cmd = container_of(header, typeof(*cmd), header);
2950         u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
2951                 sizeof(SVGA3dUAViewId);
2952         int ret;
2953
2954         if (!has_sm5_context(dev_priv))
2955                 return -EINVAL;
2956
2957         if (num_uav > vmw_max_num_uavs(dev_priv)) {
2958                 VMW_DEBUG_USER("Invalid UAV binding.\n");
2959                 return -EINVAL;
2960         }
2961
2962         ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
2963                                     vmw_ctx_binding_uav, 0, (void *)&cmd[1],
2964                                     num_uav, 0);
2965         if (ret)
2966                 return ret;
2967
2968         vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 0,
2969                                          cmd->body.uavSpliceIndex);
2970
2971         return ret;
2972 }
2973
2974 static int vmw_cmd_set_cs_uav(struct vmw_private *dev_priv,
2975                               struct vmw_sw_context *sw_context,
2976                               SVGA3dCmdHeader *header)
2977 {
2978         struct {
2979                 SVGA3dCmdHeader header;
2980                 SVGA3dCmdDXSetCSUAViews body;
2981         } *cmd = container_of(header, typeof(*cmd), header);
2982         u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
2983                 sizeof(SVGA3dUAViewId);
2984         int ret;
2985
2986         if (!has_sm5_context(dev_priv))
2987                 return -EINVAL;
2988
2989         if (num_uav > vmw_max_num_uavs(dev_priv)) {
2990                 VMW_DEBUG_USER("Invalid UAV binding.\n");
2991                 return -EINVAL;
2992         }
2993
2994         ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
2995                                     vmw_ctx_binding_cs_uav, 0, (void *)&cmd[1],
2996                                     num_uav, 0);
2997         if (ret)
2998                 return ret;
2999
3000         vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 1,
3001                                   cmd->body.startIndex);
3002
3003         return ret;
3004 }
3005
3006 static int vmw_cmd_dx_define_streamoutput(struct vmw_private *dev_priv,
3007                                           struct vmw_sw_context *sw_context,
3008                                           SVGA3dCmdHeader *header)
3009 {
3010         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3011         struct vmw_resource *res;
3012         struct {
3013                 SVGA3dCmdHeader header;
3014                 SVGA3dCmdDXDefineStreamOutputWithMob body;
3015         } *cmd = container_of(header, typeof(*cmd), header);
3016         int ret;
3017
3018         if (!has_sm5_context(dev_priv))
3019                 return -EINVAL;
3020
3021         if (!ctx_node) {
3022                 DRM_ERROR("DX Context not set.\n");
3023                 return -EINVAL;
3024         }
3025
3026         res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_STREAMOUTPUT);
3027         ret = vmw_cotable_notify(res, cmd->body.soid);
3028         if (ret)
3029                 return ret;
3030
3031         return vmw_dx_streamoutput_add(sw_context->man, ctx_node->ctx,
3032                                        cmd->body.soid,
3033                                        &sw_context->staged_cmd_res);
3034 }
3035
3036 static int vmw_cmd_dx_destroy_streamoutput(struct vmw_private *dev_priv,
3037                                            struct vmw_sw_context *sw_context,
3038                                            SVGA3dCmdHeader *header)
3039 {
3040         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3041         struct vmw_resource *res;
3042         struct {
3043                 SVGA3dCmdHeader header;
3044                 SVGA3dCmdDXDestroyStreamOutput body;
3045         } *cmd = container_of(header, typeof(*cmd), header);
3046
3047         if (!ctx_node) {
3048                 DRM_ERROR("DX Context not set.\n");
3049                 return -EINVAL;
3050         }
3051
3052         /*
3053          * When device does not support SM5 then streamoutput with mob command is
3054          * not available to user-space. Simply return in this case.
3055          */
3056         if (!has_sm5_context(dev_priv))
3057                 return 0;
3058
3059         /*
3060          * With SM5 capable device if lookup fails then user-space probably used
3061          * old streamoutput define command. Return without an error.
3062          */
3063         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3064                                          cmd->body.soid);
3065         if (IS_ERR(res))
3066                 return 0;
3067
3068         return vmw_dx_streamoutput_remove(sw_context->man, cmd->body.soid,
3069                                           &sw_context->staged_cmd_res);
3070 }
3071
3072 static int vmw_cmd_dx_bind_streamoutput(struct vmw_private *dev_priv,
3073                                         struct vmw_sw_context *sw_context,
3074                                         SVGA3dCmdHeader *header)
3075 {
3076         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3077         struct vmw_resource *res;
3078         struct {
3079                 SVGA3dCmdHeader header;
3080                 SVGA3dCmdDXBindStreamOutput body;
3081         } *cmd = container_of(header, typeof(*cmd), header);
3082         int ret;
3083
3084         if (!has_sm5_context(dev_priv))
3085                 return -EINVAL;
3086
3087         if (!ctx_node) {
3088                 DRM_ERROR("DX Context not set.\n");
3089                 return -EINVAL;
3090         }
3091
3092         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3093                                          cmd->body.soid);
3094         if (IS_ERR(res)) {
3095                 DRM_ERROR("Could not find streamoutput to bind.\n");
3096                 return PTR_ERR(res);
3097         }
3098
3099         vmw_dx_streamoutput_set_size(res, cmd->body.sizeInBytes);
3100
3101         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
3102                                             VMW_RES_DIRTY_NONE);
3103         if (ret) {
3104                 DRM_ERROR("Error creating resource validation node.\n");
3105                 return ret;
3106         }
3107
3108         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
3109                                          &cmd->body.mobid,
3110                                          cmd->body.offsetInBytes);
3111 }
3112
3113 static int vmw_cmd_dx_set_streamoutput(struct vmw_private *dev_priv,
3114                                        struct vmw_sw_context *sw_context,
3115                                        SVGA3dCmdHeader *header)
3116 {
3117         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3118         struct vmw_resource *res;
3119         struct vmw_ctx_bindinfo_so binding;
3120         struct {
3121                 SVGA3dCmdHeader header;
3122                 SVGA3dCmdDXSetStreamOutput body;
3123         } *cmd = container_of(header, typeof(*cmd), header);
3124         int ret;
3125
3126         if (!ctx_node) {
3127                 DRM_ERROR("DX Context not set.\n");
3128                 return -EINVAL;
3129         }
3130
3131         if (cmd->body.soid == SVGA3D_INVALID_ID)
3132                 return 0;
3133
3134         /*
3135          * When device does not support SM5 then streamoutput with mob command is
3136          * not available to user-space. Simply return in this case.
3137          */
3138         if (!has_sm5_context(dev_priv))
3139                 return 0;
3140
3141         /*
3142          * With SM5 capable device if lookup fails then user-space probably used
3143          * old streamoutput define command. Return without an error.
3144          */
3145         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3146                                          cmd->body.soid);
3147         if (IS_ERR(res)) {
3148                 return 0;
3149         }
3150
3151         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
3152                                             VMW_RES_DIRTY_NONE);
3153         if (ret) {
3154                 DRM_ERROR("Error creating resource validation node.\n");
3155                 return ret;
3156         }
3157
3158         binding.bi.ctx = ctx_node->ctx;
3159         binding.bi.res = res;
3160         binding.bi.bt = vmw_ctx_binding_so;
3161         binding.slot = 0; /* Only one SO set to context at a time. */
3162
3163         vmw_binding_add(sw_context->dx_ctx_node->staged, &binding.bi, 0,
3164                         binding.slot);
3165
3166         return ret;
3167 }
3168
3169 static int vmw_cmd_indexed_instanced_indirect(struct vmw_private *dev_priv,
3170                                               struct vmw_sw_context *sw_context,
3171                                               SVGA3dCmdHeader *header)
3172 {
3173         struct vmw_draw_indexed_instanced_indirect_cmd {
3174                 SVGA3dCmdHeader header;
3175                 SVGA3dCmdDXDrawIndexedInstancedIndirect body;
3176         } *cmd = container_of(header, typeof(*cmd), header);
3177
3178         if (!has_sm5_context(dev_priv))
3179                 return -EINVAL;
3180
3181         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3182                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3183                                  &cmd->body.argsBufferSid, NULL);
3184 }
3185
3186 static int vmw_cmd_instanced_indirect(struct vmw_private *dev_priv,
3187                                       struct vmw_sw_context *sw_context,
3188                                       SVGA3dCmdHeader *header)
3189 {
3190         struct vmw_draw_instanced_indirect_cmd {
3191                 SVGA3dCmdHeader header;
3192                 SVGA3dCmdDXDrawInstancedIndirect body;
3193         } *cmd = container_of(header, typeof(*cmd), header);
3194
3195         if (!has_sm5_context(dev_priv))
3196                 return -EINVAL;
3197
3198         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3199                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3200                                  &cmd->body.argsBufferSid, NULL);
3201 }
3202
3203 static int vmw_cmd_dispatch_indirect(struct vmw_private *dev_priv,
3204                                      struct vmw_sw_context *sw_context,
3205                                      SVGA3dCmdHeader *header)
3206 {
3207         struct vmw_dispatch_indirect_cmd {
3208                 SVGA3dCmdHeader header;
3209                 SVGA3dCmdDXDispatchIndirect body;
3210         } *cmd = container_of(header, typeof(*cmd), header);
3211
3212         if (!has_sm5_context(dev_priv))
3213                 return -EINVAL;
3214
3215         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3216                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3217                                  &cmd->body.argsBufferSid, NULL);
3218 }
3219
3220 static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
3221                                 struct vmw_sw_context *sw_context,
3222                                 void *buf, uint32_t *size)
3223 {
3224         uint32_t size_remaining = *size;
3225         uint32_t cmd_id;
3226
3227         cmd_id = ((uint32_t *)buf)[0];
3228         switch (cmd_id) {
3229         case SVGA_CMD_UPDATE:
3230                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdUpdate);
3231                 break;
3232         case SVGA_CMD_DEFINE_GMRFB:
3233                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdDefineGMRFB);
3234                 break;
3235         case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
3236                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3237                 break;
3238         case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
3239                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3240                 break;
3241         default:
3242                 VMW_DEBUG_USER("Unsupported SVGA command: %u.\n", cmd_id);
3243                 return -EINVAL;
3244         }
3245
3246         if (*size > size_remaining) {
3247                 VMW_DEBUG_USER("Invalid SVGA command (size mismatch): %u.\n",
3248                                cmd_id);
3249                 return -EINVAL;
3250         }
3251
3252         if (unlikely(!sw_context->kernel)) {
3253                 VMW_DEBUG_USER("Kernel only SVGA command: %u.\n", cmd_id);
3254                 return -EPERM;
3255         }
3256
3257         if (cmd_id == SVGA_CMD_DEFINE_GMRFB)
3258                 return vmw_cmd_check_define_gmrfb(dev_priv, sw_context, buf);
3259
3260         return 0;
3261 }
3262
3263 static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
3264         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE, &vmw_cmd_invalid,
3265                     false, false, false),
3266         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DESTROY, &vmw_cmd_invalid,
3267                     false, false, false),
3268         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_COPY, &vmw_cmd_surface_copy_check,
3269                     true, false, false),
3270         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_STRETCHBLT, &vmw_cmd_stretch_blt_check,
3271                     true, false, false),
3272         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DMA, &vmw_cmd_dma,
3273                     true, false, false),
3274         VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DEFINE, &vmw_cmd_invalid,
3275                     false, false, false),
3276         VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DESTROY, &vmw_cmd_invalid,
3277                     false, false, false),
3278         VMW_CMD_DEF(SVGA_3D_CMD_SETTRANSFORM, &vmw_cmd_cid_check,
3279                     true, false, false),
3280         VMW_CMD_DEF(SVGA_3D_CMD_SETZRANGE, &vmw_cmd_cid_check,
3281                     true, false, false),
3282         VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERSTATE, &vmw_cmd_cid_check,
3283                     true, false, false),
3284         VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERTARGET,
3285                     &vmw_cmd_set_render_target_check, true, false, false),
3286         VMW_CMD_DEF(SVGA_3D_CMD_SETTEXTURESTATE, &vmw_cmd_tex_state,
3287                     true, false, false),
3288         VMW_CMD_DEF(SVGA_3D_CMD_SETMATERIAL, &vmw_cmd_cid_check,
3289                     true, false, false),
3290         VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTDATA, &vmw_cmd_cid_check,
3291                     true, false, false),
3292         VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTENABLED, &vmw_cmd_cid_check,
3293                     true, false, false),
3294         VMW_CMD_DEF(SVGA_3D_CMD_SETVIEWPORT, &vmw_cmd_cid_check,
3295                     true, false, false),
3296         VMW_CMD_DEF(SVGA_3D_CMD_SETCLIPPLANE, &vmw_cmd_cid_check,
3297                     true, false, false),
3298         VMW_CMD_DEF(SVGA_3D_CMD_CLEAR, &vmw_cmd_cid_check,
3299                     true, false, false),
3300         VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check,
3301                     false, false, false),
3302         VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_shader_define,
3303                     true, false, false),
3304         VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_shader_destroy,
3305                     true, false, false),
3306         VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader,
3307                     true, false, false),
3308         VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_set_shader_const,
3309                     true, false, false),
3310         VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw,
3311                     true, false, false),
3312         VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check,
3313                     true, false, false),
3314         VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_begin_query,
3315                     true, false, false),
3316         VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query,
3317                     true, false, false),
3318         VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query,
3319                     true, false, false),
3320         VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok,
3321                     true, false, false),
3322         VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
3323                     &vmw_cmd_blt_surf_screen_check, false, false, false),
3324         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE_V2, &vmw_cmd_invalid,
3325                     false, false, false),
3326         VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid,
3327                     false, false, false),
3328         VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid,
3329                     false, false, false),
3330         VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid,
3331                     false, false, false),
3332         VMW_CMD_DEF(SVGA_3D_CMD_SCREEN_DMA, &vmw_cmd_invalid,
3333                     false, false, false),
3334         VMW_CMD_DEF(SVGA_3D_CMD_DEAD1, &vmw_cmd_invalid,
3335                     false, false, false),
3336         VMW_CMD_DEF(SVGA_3D_CMD_DEAD2, &vmw_cmd_invalid,
3337                     false, false, false),
3338         VMW_CMD_DEF(SVGA_3D_CMD_DEAD12, &vmw_cmd_invalid, false, false, false),
3339         VMW_CMD_DEF(SVGA_3D_CMD_DEAD13, &vmw_cmd_invalid, false, false, false),
3340         VMW_CMD_DEF(SVGA_3D_CMD_DEAD14, &vmw_cmd_invalid, false, false, false),
3341         VMW_CMD_DEF(SVGA_3D_CMD_DEAD15, &vmw_cmd_invalid, false, false, false),
3342         VMW_CMD_DEF(SVGA_3D_CMD_DEAD16, &vmw_cmd_invalid, false, false, false),
3343         VMW_CMD_DEF(SVGA_3D_CMD_DEAD17, &vmw_cmd_invalid, false, false, false),
3344         VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE, &vmw_cmd_invalid,
3345                     false, false, true),
3346         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_OTABLE, &vmw_cmd_invalid,
3347                     false, false, true),
3348         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_MOB, &vmw_cmd_invalid,
3349                     false, false, true),
3350         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_MOB, &vmw_cmd_invalid,
3351                     false, false, true),
3352         VMW_CMD_DEF(SVGA_3D_CMD_REDEFINE_GB_MOB64, &vmw_cmd_invalid,
3353                     false, false, true),
3354         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_MOB_MAPPING, &vmw_cmd_invalid,
3355                     false, false, true),
3356         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE, &vmw_cmd_invalid,
3357                     false, false, true),
3358         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SURFACE, &vmw_cmd_invalid,
3359                     false, false, true),
3360         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE, &vmw_cmd_bind_gb_surface,
3361                     true, false, true),
3362         VMW_CMD_DEF(SVGA_3D_CMD_COND_BIND_GB_SURFACE, &vmw_cmd_invalid,
3363                     false, false, true),
3364         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_IMAGE, &vmw_cmd_update_gb_image,
3365                     true, false, true),
3366         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SURFACE,
3367                     &vmw_cmd_update_gb_surface, true, false, true),
3368         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE,
3369                     &vmw_cmd_readback_gb_image, true, false, true),
3370         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_SURFACE,
3371                     &vmw_cmd_readback_gb_surface, true, false, true),
3372         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE,
3373                     &vmw_cmd_invalidate_gb_image, true, false, true),
3374         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_SURFACE,
3375                     &vmw_cmd_invalidate_gb_surface, true, false, true),
3376         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_CONTEXT, &vmw_cmd_invalid,
3377                     false, false, true),
3378         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_CONTEXT, &vmw_cmd_invalid,
3379                     false, false, true),
3380         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid,
3381                     false, false, true),
3382         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid,
3383                     false, false, true),
3384         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid,
3385                     false, false, true),
3386         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid,
3387                     false, false, true),
3388         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader,
3389                     true, false, true),
3390         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid,
3391                     false, false, true),
3392         VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE64, &vmw_cmd_invalid,
3393                     false, false, false),
3394         VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query,
3395                     true, false, true),
3396         VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query,
3397                     true, false, true),
3398         VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query,
3399                     true, false, true),
3400         VMW_CMD_DEF(SVGA_3D_CMD_NOP, &vmw_cmd_ok,
3401                     true, false, true),
3402         VMW_CMD_DEF(SVGA_3D_CMD_NOP_ERROR, &vmw_cmd_ok,
3403                     true, false, true),
3404         VMW_CMD_DEF(SVGA_3D_CMD_ENABLE_GART, &vmw_cmd_invalid,
3405                     false, false, true),
3406         VMW_CMD_DEF(SVGA_3D_CMD_DISABLE_GART, &vmw_cmd_invalid,
3407                     false, false, true),
3408         VMW_CMD_DEF(SVGA_3D_CMD_MAP_MOB_INTO_GART, &vmw_cmd_invalid,
3409                     false, false, true),
3410         VMW_CMD_DEF(SVGA_3D_CMD_UNMAP_GART_RANGE, &vmw_cmd_invalid,
3411                     false, false, true),
3412         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SCREENTARGET, &vmw_cmd_invalid,
3413                     false, false, true),
3414         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SCREENTARGET, &vmw_cmd_invalid,
3415                     false, false, true),
3416         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SCREENTARGET, &vmw_cmd_invalid,
3417                     false, false, true),
3418         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SCREENTARGET, &vmw_cmd_invalid,
3419                     false, false, true),
3420         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
3421                     false, false, true),
3422         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
3423                     false, false, true),
3424         VMW_CMD_DEF(SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE, &vmw_cmd_cid_check,
3425                     true, false, true),
3426         VMW_CMD_DEF(SVGA_3D_CMD_GB_SCREEN_DMA, &vmw_cmd_invalid,
3427                     false, false, true),
3428         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE_WITH_PITCH, &vmw_cmd_invalid,
3429                     false, false, true),
3430         VMW_CMD_DEF(SVGA_3D_CMD_GB_MOB_FENCE, &vmw_cmd_invalid,
3431                     false, false, true),
3432         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE_V2, &vmw_cmd_invalid,
3433                     false, false, true),
3434
3435         /* SM commands */
3436         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_CONTEXT, &vmw_cmd_invalid,
3437                     false, false, true),
3438         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_CONTEXT, &vmw_cmd_invalid,
3439                     false, false, true),
3440         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_CONTEXT, &vmw_cmd_invalid,
3441                     false, false, true),
3442         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_CONTEXT, &vmw_cmd_invalid,
3443                     false, false, true),
3444         VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_CONTEXT, &vmw_cmd_invalid,
3445                     false, false, true),
3446         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER,
3447                     &vmw_cmd_dx_set_single_constant_buffer, true, false, true),
3448         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER_RESOURCES,
3449                     &vmw_cmd_dx_set_shader_res, true, false, true),
3450         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER, &vmw_cmd_dx_set_shader,
3451                     true, false, true),
3452         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SAMPLERS, &vmw_cmd_dx_cid_check,
3453                     true, false, true),
3454         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW, &vmw_cmd_dx_cid_check,
3455                     true, false, true),
3456         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED, &vmw_cmd_dx_cid_check,
3457                     true, false, true),
3458         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED, &vmw_cmd_dx_cid_check,
3459                     true, false, true),
3460         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED,
3461                     &vmw_cmd_dx_cid_check, true, false, true),
3462         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_AUTO, &vmw_cmd_dx_cid_check,
3463                     true, false, true),
3464         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS,
3465                     &vmw_cmd_dx_set_vertex_buffers, true, false, true),
3466         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INDEX_BUFFER,
3467                     &vmw_cmd_dx_set_index_buffer, true, false, true),
3468         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RENDERTARGETS,
3469                     &vmw_cmd_dx_set_rendertargets, true, false, true),
3470         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_BLEND_STATE, &vmw_cmd_dx_cid_check,
3471                     true, false, true),
3472         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DEPTHSTENCIL_STATE,
3473                     &vmw_cmd_dx_cid_check, true, false, true),
3474         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RASTERIZER_STATE,
3475                     &vmw_cmd_dx_cid_check, true, false, true),
3476         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_QUERY, &vmw_cmd_dx_define_query,
3477                     true, false, true),
3478         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_dx_cid_check,
3479                     true, false, true),
3480         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_QUERY, &vmw_cmd_dx_bind_query,
3481                     true, false, true),
3482         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_QUERY_OFFSET,
3483                     &vmw_cmd_dx_cid_check, true, false, true),
3484         VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_dx_cid_check,
3485                     true, false, true),
3486         VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_dx_cid_check,
3487                     true, false, true),
3488         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_QUERY, &vmw_cmd_invalid,
3489                     true, false, true),
3490         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_dx_cid_check,
3491                     true, false, true),
3492         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VIEWPORTS, &vmw_cmd_dx_cid_check,
3493                     true, false, true),
3494         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SCISSORRECTS, &vmw_cmd_dx_cid_check,
3495                     true, false, true),
3496         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW,
3497                     &vmw_cmd_dx_clear_rendertarget_view, true, false, true),
3498         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW,
3499                     &vmw_cmd_dx_clear_depthstencil_view, true, false, true),
3500         VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY, &vmw_cmd_invalid,
3501                     true, false, true),
3502         VMW_CMD_DEF(SVGA_3D_CMD_DX_GENMIPS, &vmw_cmd_dx_genmips,
3503                     true, false, true),
3504         VMW_CMD_DEF(SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE,
3505                     &vmw_cmd_dx_check_subresource, true, false, true),
3506         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_SUBRESOURCE,
3507                     &vmw_cmd_dx_check_subresource, true, false, true),
3508         VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_SUBRESOURCE,
3509                     &vmw_cmd_dx_check_subresource, true, false, true),
3510         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW,
3511                     &vmw_cmd_dx_view_define, true, false, true),
3512         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADERRESOURCE_VIEW,
3513                     &vmw_cmd_dx_view_remove, true, false, true),
3514         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RENDERTARGET_VIEW,
3515                     &vmw_cmd_dx_view_define, true, false, true),
3516         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RENDERTARGET_VIEW,
3517                     &vmw_cmd_dx_view_remove, true, false, true),
3518         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW,
3519                     &vmw_cmd_dx_view_define, true, false, true),
3520         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_VIEW,
3521                     &vmw_cmd_dx_view_remove, true, false, true),
3522         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT,
3523                     &vmw_cmd_dx_so_define, true, false, true),
3524         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT,
3525                     &vmw_cmd_dx_cid_check, true, false, true),
3526         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_BLEND_STATE,
3527                     &vmw_cmd_dx_so_define, true, false, true),
3528         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_BLEND_STATE,
3529                     &vmw_cmd_dx_cid_check, true, false, true),
3530         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE,
3531                     &vmw_cmd_dx_so_define, true, false, true),
3532         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE,
3533                     &vmw_cmd_dx_cid_check, true, false, true),
3534         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE,
3535                     &vmw_cmd_dx_so_define, true, false, true),
3536         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE,
3537                     &vmw_cmd_dx_cid_check, true, false, true),
3538         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE,
3539                     &vmw_cmd_dx_so_define, true, false, true),
3540         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE,
3541                     &vmw_cmd_dx_cid_check, true, false, true),
3542         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADER,
3543                     &vmw_cmd_dx_define_shader, true, false, true),
3544         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADER,
3545                     &vmw_cmd_dx_destroy_shader, true, false, true),
3546         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_SHADER,
3547                     &vmw_cmd_dx_bind_shader, true, false, true),
3548         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT,
3549                     &vmw_cmd_dx_so_define, true, false, true),
3550         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT,
3551                     &vmw_cmd_dx_destroy_streamoutput, true, false, true),
3552         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_STREAMOUTPUT,
3553                     &vmw_cmd_dx_set_streamoutput, true, false, true),
3554         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SOTARGETS,
3555                     &vmw_cmd_dx_set_so_targets, true, false, true),
3556         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INPUT_LAYOUT,
3557                     &vmw_cmd_dx_cid_check, true, false, true),
3558         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_TOPOLOGY,
3559                     &vmw_cmd_dx_cid_check, true, false, true),
3560         VMW_CMD_DEF(SVGA_3D_CMD_DX_BUFFER_COPY,
3561                     &vmw_cmd_buffer_copy_check, true, false, true),
3562         VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION,
3563                     &vmw_cmd_pred_copy_check, true, false, true),
3564         VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
3565                     &vmw_cmd_dx_transfer_from_buffer,
3566                     true, false, true),
3567         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET,
3568                     &vmw_cmd_dx_set_constant_buffer_offset,
3569                     true, false, true),
3570         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PS_CONSTANT_BUFFER_OFFSET,
3571                     &vmw_cmd_dx_set_constant_buffer_offset,
3572                     true, false, true),
3573         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_GS_CONSTANT_BUFFER_OFFSET,
3574                     &vmw_cmd_dx_set_constant_buffer_offset,
3575                     true, false, true),
3576         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_HS_CONSTANT_BUFFER_OFFSET,
3577                     &vmw_cmd_dx_set_constant_buffer_offset,
3578                     true, false, true),
3579         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DS_CONSTANT_BUFFER_OFFSET,
3580                     &vmw_cmd_dx_set_constant_buffer_offset,
3581                     true, false, true),
3582         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_CONSTANT_BUFFER_OFFSET,
3583                     &vmw_cmd_dx_set_constant_buffer_offset,
3584                     true, false, true),
3585         VMW_CMD_DEF(SVGA_3D_CMD_INTRA_SURFACE_COPY, &vmw_cmd_intra_surface_copy,
3586                     true, false, true),
3587
3588         /*
3589          * SM5 commands
3590          */
3591         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_UA_VIEW, &vmw_cmd_sm5_view_define,
3592                     true, false, true),
3593         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_UA_VIEW, &vmw_cmd_sm5_view_remove,
3594                     true, false, true),
3595         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_UINT, &vmw_cmd_clear_uav_uint,
3596                     true, false, true),
3597         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_FLOAT,
3598                     &vmw_cmd_clear_uav_float, true, false, true),
3599         VMW_CMD_DEF(SVGA_3D_CMD_DX_COPY_STRUCTURE_COUNT, &vmw_cmd_invalid, true,
3600                     false, true),
3601         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_UA_VIEWS, &vmw_cmd_set_uav, true, false,
3602                     true),
3603         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED_INDIRECT,
3604                     &vmw_cmd_indexed_instanced_indirect, true, false, true),
3605         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED_INDIRECT,
3606                     &vmw_cmd_instanced_indirect, true, false, true),
3607         VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH, &vmw_cmd_sm5, true, false, true),
3608         VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH_INDIRECT,
3609                     &vmw_cmd_dispatch_indirect, true, false, true),
3610         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_UA_VIEWS, &vmw_cmd_set_cs_uav, true,
3611                     false, true),
3612         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW_V2,
3613                     &vmw_cmd_sm5_view_define, true, false, true),
3614         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT_WITH_MOB,
3615                     &vmw_cmd_dx_define_streamoutput, true, false, true),
3616         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_STREAMOUTPUT,
3617                     &vmw_cmd_dx_bind_streamoutput, true, false, true),
3618         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE_V2,
3619                     &vmw_cmd_dx_so_define, true, false, true),
3620 };
3621
3622 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd)
3623 {
3624         u32 cmd_id = ((u32 *) buf)[0];
3625
3626         if (cmd_id >= SVGA_CMD_MAX) {
3627                 SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
3628                 const struct vmw_cmd_entry *entry;
3629
3630                 *size = header->size + sizeof(SVGA3dCmdHeader);
3631                 cmd_id = header->id;
3632                 if (cmd_id >= SVGA_3D_CMD_MAX)
3633                         return false;
3634
3635                 cmd_id -= SVGA_3D_CMD_BASE;
3636                 entry = &vmw_cmd_entries[cmd_id];
3637                 *cmd = entry->cmd_name;
3638                 return true;
3639         }
3640
3641         switch (cmd_id) {
3642         case SVGA_CMD_UPDATE:
3643                 *cmd = "SVGA_CMD_UPDATE";
3644                 *size = sizeof(u32) + sizeof(SVGAFifoCmdUpdate);
3645                 break;
3646         case SVGA_CMD_DEFINE_GMRFB:
3647                 *cmd = "SVGA_CMD_DEFINE_GMRFB";
3648                 *size = sizeof(u32) + sizeof(SVGAFifoCmdDefineGMRFB);
3649                 break;
3650         case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
3651                 *cmd = "SVGA_CMD_BLIT_GMRFB_TO_SCREEN";
3652                 *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3653                 break;
3654         case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
3655                 *cmd = "SVGA_CMD_BLIT_SCREEN_TO_GMRFB";
3656                 *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3657                 break;
3658         default:
3659                 *cmd = "UNKNOWN";
3660                 *size = 0;
3661                 return false;
3662         }
3663
3664         return true;
3665 }
3666
3667 static int vmw_cmd_check(struct vmw_private *dev_priv,
3668                          struct vmw_sw_context *sw_context, void *buf,
3669                          uint32_t *size)
3670 {
3671         uint32_t cmd_id;
3672         uint32_t size_remaining = *size;
3673         SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
3674         int ret;
3675         const struct vmw_cmd_entry *entry;
3676         bool gb = dev_priv->capabilities & SVGA_CAP_GBOBJECTS;
3677
3678         cmd_id = ((uint32_t *)buf)[0];
3679         /* Handle any none 3D commands */
3680         if (unlikely(cmd_id < SVGA_CMD_MAX))
3681                 return vmw_cmd_check_not_3d(dev_priv, sw_context, buf, size);
3682
3683
3684         cmd_id = header->id;
3685         *size = header->size + sizeof(SVGA3dCmdHeader);
3686
3687         cmd_id -= SVGA_3D_CMD_BASE;
3688         if (unlikely(*size > size_remaining))
3689                 goto out_invalid;
3690
3691         if (unlikely(cmd_id >= SVGA_3D_CMD_MAX - SVGA_3D_CMD_BASE))
3692                 goto out_invalid;
3693
3694         entry = &vmw_cmd_entries[cmd_id];
3695         if (unlikely(!entry->func))
3696                 goto out_invalid;
3697
3698         if (unlikely(!entry->user_allow && !sw_context->kernel))
3699                 goto out_privileged;
3700
3701         if (unlikely(entry->gb_disable && gb))
3702                 goto out_old;
3703
3704         if (unlikely(entry->gb_enable && !gb))
3705                 goto out_new;
3706
3707         ret = entry->func(dev_priv, sw_context, header);
3708         if (unlikely(ret != 0)) {
3709                 VMW_DEBUG_USER("SVGA3D command: %d failed with error %d\n",
3710                                cmd_id + SVGA_3D_CMD_BASE, ret);
3711                 return ret;
3712         }
3713
3714         return 0;
3715 out_invalid:
3716         VMW_DEBUG_USER("Invalid SVGA3D command: %d\n",
3717                        cmd_id + SVGA_3D_CMD_BASE);
3718         return -EINVAL;
3719 out_privileged:
3720         VMW_DEBUG_USER("Privileged SVGA3D command: %d\n",
3721                        cmd_id + SVGA_3D_CMD_BASE);
3722         return -EPERM;
3723 out_old:
3724         VMW_DEBUG_USER("Deprecated (disallowed) SVGA3D command: %d\n",
3725                        cmd_id + SVGA_3D_CMD_BASE);
3726         return -EINVAL;
3727 out_new:
3728         VMW_DEBUG_USER("SVGA3D command: %d not supported by virtual device.\n",
3729                        cmd_id + SVGA_3D_CMD_BASE);
3730         return -EINVAL;
3731 }
3732
3733 static int vmw_cmd_check_all(struct vmw_private *dev_priv,
3734                              struct vmw_sw_context *sw_context, void *buf,
3735                              uint32_t size)
3736 {
3737         int32_t cur_size = size;
3738         int ret;
3739
3740         sw_context->buf_start = buf;
3741
3742         while (cur_size > 0) {
3743                 size = cur_size;
3744                 ret = vmw_cmd_check(dev_priv, sw_context, buf, &size);
3745                 if (unlikely(ret != 0))
3746                         return ret;
3747                 buf = (void *)((unsigned long) buf + size);
3748                 cur_size -= size;
3749         }
3750
3751         if (unlikely(cur_size != 0)) {
3752                 VMW_DEBUG_USER("Command verifier out of sync.\n");
3753                 return -EINVAL;
3754         }
3755
3756         return 0;
3757 }
3758
3759 static void vmw_free_relocations(struct vmw_sw_context *sw_context)
3760 {
3761         /* Memory is validation context memory, so no need to free it */
3762         INIT_LIST_HEAD(&sw_context->bo_relocations);
3763 }
3764
3765 static void vmw_apply_relocations(struct vmw_sw_context *sw_context)
3766 {
3767         struct vmw_relocation *reloc;
3768         struct ttm_buffer_object *bo;
3769
3770         list_for_each_entry(reloc, &sw_context->bo_relocations, head) {
3771                 bo = &reloc->vbo->base;
3772                 switch (bo->resource->mem_type) {
3773                 case TTM_PL_VRAM:
3774                         reloc->location->offset += bo->resource->start << PAGE_SHIFT;
3775                         reloc->location->gmrId = SVGA_GMR_FRAMEBUFFER;
3776                         break;
3777                 case VMW_PL_GMR:
3778                         reloc->location->gmrId = bo->resource->start;
3779                         break;
3780                 case VMW_PL_MOB:
3781                         *reloc->mob_loc = bo->resource->start;
3782                         break;
3783                 default:
3784                         BUG();
3785                 }
3786         }
3787         vmw_free_relocations(sw_context);
3788 }
3789
3790 static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context,
3791                                  uint32_t size)
3792 {
3793         if (likely(sw_context->cmd_bounce_size >= size))
3794                 return 0;
3795
3796         if (sw_context->cmd_bounce_size == 0)
3797                 sw_context->cmd_bounce_size = VMWGFX_CMD_BOUNCE_INIT_SIZE;
3798
3799         while (sw_context->cmd_bounce_size < size) {
3800                 sw_context->cmd_bounce_size =
3801                         PAGE_ALIGN(sw_context->cmd_bounce_size +
3802                                    (sw_context->cmd_bounce_size >> 1));
3803         }
3804
3805         vfree(sw_context->cmd_bounce);
3806         sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size);
3807
3808         if (sw_context->cmd_bounce == NULL) {
3809                 VMW_DEBUG_USER("Failed to allocate command bounce buffer.\n");
3810                 sw_context->cmd_bounce_size = 0;
3811                 return -ENOMEM;
3812         }
3813
3814         return 0;
3815 }
3816
3817 /*
3818  * vmw_execbuf_fence_commands - create and submit a command stream fence
3819  *
3820  * Creates a fence object and submits a command stream marker.
3821  * If this fails for some reason, We sync the fifo and return NULL.
3822  * It is then safe to fence buffers with a NULL pointer.
3823  *
3824  * If @p_handle is not NULL @file_priv must also not be NULL. Creates a
3825  * userspace handle if @p_handle is not NULL, otherwise not.
3826  */
3827
3828 int vmw_execbuf_fence_commands(struct drm_file *file_priv,
3829                                struct vmw_private *dev_priv,
3830                                struct vmw_fence_obj **p_fence,
3831                                uint32_t *p_handle)
3832 {
3833         uint32_t sequence;
3834         int ret;
3835         bool synced = false;
3836
3837         /* p_handle implies file_priv. */
3838         BUG_ON(p_handle != NULL && file_priv == NULL);
3839
3840         ret = vmw_cmd_send_fence(dev_priv, &sequence);
3841         if (unlikely(ret != 0)) {
3842                 VMW_DEBUG_USER("Fence submission error. Syncing.\n");
3843                 synced = true;
3844         }
3845
3846         if (p_handle != NULL)
3847                 ret = vmw_user_fence_create(file_priv, dev_priv->fman,
3848                                             sequence, p_fence, p_handle);
3849         else
3850                 ret = vmw_fence_create(dev_priv->fman, sequence, p_fence);
3851
3852         if (unlikely(ret != 0 && !synced)) {
3853                 (void) vmw_fallback_wait(dev_priv, false, false, sequence,
3854                                          false, VMW_FENCE_WAIT_TIMEOUT);
3855                 *p_fence = NULL;
3856         }
3857
3858         return ret;
3859 }
3860
3861 /**
3862  * vmw_execbuf_copy_fence_user - copy fence object information to user-space.
3863  *
3864  * @dev_priv: Pointer to a vmw_private struct.
3865  * @vmw_fp: Pointer to the struct vmw_fpriv representing the calling file.
3866  * @ret: Return value from fence object creation.
3867  * @user_fence_rep: User space address of a struct drm_vmw_fence_rep to which
3868  * the information should be copied.
3869  * @fence: Pointer to the fenc object.
3870  * @fence_handle: User-space fence handle.
3871  * @out_fence_fd: exported file descriptor for the fence.  -1 if not used
3872  * @sync_file:  Only used to clean up in case of an error in this function.
3873  *
3874  * This function copies fence information to user-space. If copying fails, the
3875  * user-space struct drm_vmw_fence_rep::error member is hopefully left
3876  * untouched, and if it's preloaded with an -EFAULT by user-space, the error
3877  * will hopefully be detected.
3878  *
3879  * Also if copying fails, user-space will be unable to signal the fence object
3880  * so we wait for it immediately, and then unreference the user-space reference.
3881  */
3882 int
3883 vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
3884                             struct vmw_fpriv *vmw_fp, int ret,
3885                             struct drm_vmw_fence_rep __user *user_fence_rep,
3886                             struct vmw_fence_obj *fence, uint32_t fence_handle,
3887                             int32_t out_fence_fd)
3888 {
3889         struct drm_vmw_fence_rep fence_rep;
3890
3891         if (user_fence_rep == NULL)
3892                 return 0;
3893
3894         memset(&fence_rep, 0, sizeof(fence_rep));
3895
3896         fence_rep.error = ret;
3897         fence_rep.fd = out_fence_fd;
3898         if (ret == 0) {
3899                 BUG_ON(fence == NULL);
3900
3901                 fence_rep.handle = fence_handle;
3902                 fence_rep.seqno = fence->base.seqno;
3903                 vmw_update_seqno(dev_priv);
3904                 fence_rep.passed_seqno = dev_priv->last_read_seqno;
3905         }
3906
3907         /*
3908          * copy_to_user errors will be detected by user space not seeing
3909          * fence_rep::error filled in. Typically user-space would have pre-set
3910          * that member to -EFAULT.
3911          */
3912         ret = copy_to_user(user_fence_rep, &fence_rep,
3913                            sizeof(fence_rep));
3914
3915         /*
3916          * User-space lost the fence object. We need to sync and unreference the
3917          * handle.
3918          */
3919         if (unlikely(ret != 0) && (fence_rep.error == 0)) {
3920                 ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle);
3921                 VMW_DEBUG_USER("Fence copy error. Syncing.\n");
3922                 (void) vmw_fence_obj_wait(fence, false, false,
3923                                           VMW_FENCE_WAIT_TIMEOUT);
3924         }
3925
3926         return ret ? -EFAULT : 0;
3927 }
3928
3929 /**
3930  * vmw_execbuf_submit_fifo - Patch a command batch and submit it using the fifo.
3931  *
3932  * @dev_priv: Pointer to a device private structure.
3933  * @kernel_commands: Pointer to the unpatched command batch.
3934  * @command_size: Size of the unpatched command batch.
3935  * @sw_context: Structure holding the relocation lists.
3936  *
3937  * Side effects: If this function returns 0, then the command batch pointed to
3938  * by @kernel_commands will have been modified.
3939  */
3940 static int vmw_execbuf_submit_fifo(struct vmw_private *dev_priv,
3941                                    void *kernel_commands, u32 command_size,
3942                                    struct vmw_sw_context *sw_context)
3943 {
3944         void *cmd;
3945
3946         if (sw_context->dx_ctx_node)
3947                 cmd = VMW_CMD_CTX_RESERVE(dev_priv, command_size,
3948                                           sw_context->dx_ctx_node->ctx->id);
3949         else
3950                 cmd = VMW_CMD_RESERVE(dev_priv, command_size);
3951
3952         if (!cmd)
3953                 return -ENOMEM;
3954
3955         vmw_apply_relocations(sw_context);
3956         memcpy(cmd, kernel_commands, command_size);
3957         vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
3958         vmw_resource_relocations_free(&sw_context->res_relocations);
3959         vmw_cmd_commit(dev_priv, command_size);
3960
3961         return 0;
3962 }
3963
3964 /**
3965  * vmw_execbuf_submit_cmdbuf - Patch a command batch and submit it using the
3966  * command buffer manager.
3967  *
3968  * @dev_priv: Pointer to a device private structure.
3969  * @header: Opaque handle to the command buffer allocation.
3970  * @command_size: Size of the unpatched command batch.
3971  * @sw_context: Structure holding the relocation lists.
3972  *
3973  * Side effects: If this function returns 0, then the command buffer represented
3974  * by @header will have been modified.
3975  */
3976 static int vmw_execbuf_submit_cmdbuf(struct vmw_private *dev_priv,
3977                                      struct vmw_cmdbuf_header *header,
3978                                      u32 command_size,
3979                                      struct vmw_sw_context *sw_context)
3980 {
3981         u32 id = ((sw_context->dx_ctx_node) ? sw_context->dx_ctx_node->ctx->id :
3982                   SVGA3D_INVALID_ID);
3983         void *cmd = vmw_cmdbuf_reserve(dev_priv->cman, command_size, id, false,
3984                                        header);
3985
3986         vmw_apply_relocations(sw_context);
3987         vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
3988         vmw_resource_relocations_free(&sw_context->res_relocations);
3989         vmw_cmdbuf_commit(dev_priv->cman, command_size, header, false);
3990
3991         return 0;
3992 }
3993
3994 /**
3995  * vmw_execbuf_cmdbuf - Prepare, if possible, a user-space command batch for
3996  * submission using a command buffer.
3997  *
3998  * @dev_priv: Pointer to a device private structure.
3999  * @user_commands: User-space pointer to the commands to be submitted.
4000  * @command_size: Size of the unpatched command batch.
4001  * @header: Out parameter returning the opaque pointer to the command buffer.
4002  *
4003  * This function checks whether we can use the command buffer manager for
4004  * submission and if so, creates a command buffer of suitable size and copies
4005  * the user data into that buffer.
4006  *
4007  * On successful return, the function returns a pointer to the data in the
4008  * command buffer and *@header is set to non-NULL.
4009  *
4010  * @kernel_commands: If command buffers could not be used, the function will
4011  * return the value of @kernel_commands on function call. That value may be
4012  * NULL. In that case, the value of *@header will be set to NULL.
4013  *
4014  * If an error is encountered, the function will return a pointer error value.
4015  * If the function is interrupted by a signal while sleeping, it will return
4016  * -ERESTARTSYS casted to a pointer error value.
4017  */
4018 static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv,
4019                                 void __user *user_commands,
4020                                 void *kernel_commands, u32 command_size,
4021                                 struct vmw_cmdbuf_header **header)
4022 {
4023         size_t cmdbuf_size;
4024         int ret;
4025
4026         *header = NULL;
4027         if (command_size > SVGA_CB_MAX_SIZE) {
4028                 VMW_DEBUG_USER("Command buffer is too large.\n");
4029                 return ERR_PTR(-EINVAL);
4030         }
4031
4032         if (!dev_priv->cman || kernel_commands)
4033                 return kernel_commands;
4034
4035         /* If possible, add a little space for fencing. */
4036         cmdbuf_size = command_size + 512;
4037         cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
4038         kernel_commands = vmw_cmdbuf_alloc(dev_priv->cman, cmdbuf_size, true,
4039                                            header);
4040         if (IS_ERR(kernel_commands))
4041                 return kernel_commands;
4042
4043         ret = copy_from_user(kernel_commands, user_commands, command_size);
4044         if (ret) {
4045                 VMW_DEBUG_USER("Failed copying commands.\n");
4046                 vmw_cmdbuf_header_free(*header);
4047                 *header = NULL;
4048                 return ERR_PTR(-EFAULT);
4049         }
4050
4051         return kernel_commands;
4052 }
4053
4054 static int vmw_execbuf_tie_context(struct vmw_private *dev_priv,
4055                                    struct vmw_sw_context *sw_context,
4056                                    uint32_t handle)
4057 {
4058         struct vmw_resource *res;
4059         int ret;
4060         unsigned int size;
4061
4062         if (handle == SVGA3D_INVALID_ID)
4063                 return 0;
4064
4065         size = vmw_execbuf_res_size(dev_priv, vmw_res_dx_context);
4066         ret = vmw_validation_preload_res(sw_context->ctx, size);
4067         if (ret)
4068                 return ret;
4069
4070         res = vmw_user_resource_noref_lookup_handle
4071                 (dev_priv, sw_context->fp->tfile, handle,
4072                  user_context_converter);
4073         if (IS_ERR(res)) {
4074                 VMW_DEBUG_USER("Could not find or user DX context 0x%08x.\n",
4075                                (unsigned int) handle);
4076                 return PTR_ERR(res);
4077         }
4078
4079         ret = vmw_execbuf_res_noref_val_add(sw_context, res, VMW_RES_DIRTY_SET);
4080         if (unlikely(ret != 0))
4081                 return ret;
4082
4083         sw_context->dx_ctx_node = vmw_execbuf_info_from_res(sw_context, res);
4084         sw_context->man = vmw_context_res_man(res);
4085
4086         return 0;
4087 }
4088
4089 int vmw_execbuf_process(struct drm_file *file_priv,
4090                         struct vmw_private *dev_priv,
4091                         void __user *user_commands, void *kernel_commands,
4092                         uint32_t command_size, uint64_t throttle_us,
4093                         uint32_t dx_context_handle,
4094                         struct drm_vmw_fence_rep __user *user_fence_rep,
4095                         struct vmw_fence_obj **out_fence, uint32_t flags)
4096 {
4097         struct vmw_sw_context *sw_context = &dev_priv->ctx;
4098         struct vmw_fence_obj *fence = NULL;
4099         struct vmw_cmdbuf_header *header;
4100         uint32_t handle = 0;
4101         int ret;
4102         int32_t out_fence_fd = -1;
4103         struct sync_file *sync_file = NULL;
4104         DECLARE_VAL_CONTEXT(val_ctx, &sw_context->res_ht, 1);
4105
4106         if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
4107                 out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
4108                 if (out_fence_fd < 0) {
4109                         VMW_DEBUG_USER("Failed to get a fence fd.\n");
4110                         return out_fence_fd;
4111                 }
4112         }
4113
4114         if (throttle_us) {
4115                 VMW_DEBUG_USER("Throttling is no longer supported.\n");
4116         }
4117
4118         kernel_commands = vmw_execbuf_cmdbuf(dev_priv, user_commands,
4119                                              kernel_commands, command_size,
4120                                              &header);
4121         if (IS_ERR(kernel_commands)) {
4122                 ret = PTR_ERR(kernel_commands);
4123                 goto out_free_fence_fd;
4124         }
4125
4126         ret = mutex_lock_interruptible(&dev_priv->cmdbuf_mutex);
4127         if (ret) {
4128                 ret = -ERESTARTSYS;
4129                 goto out_free_header;
4130         }
4131
4132         sw_context->kernel = false;
4133         if (kernel_commands == NULL) {
4134                 ret = vmw_resize_cmd_bounce(sw_context, command_size);
4135                 if (unlikely(ret != 0))
4136                         goto out_unlock;
4137
4138                 ret = copy_from_user(sw_context->cmd_bounce, user_commands,
4139                                      command_size);
4140                 if (unlikely(ret != 0)) {
4141                         ret = -EFAULT;
4142                         VMW_DEBUG_USER("Failed copying commands.\n");
4143                         goto out_unlock;
4144                 }
4145
4146                 kernel_commands = sw_context->cmd_bounce;
4147         } else if (!header) {
4148                 sw_context->kernel = true;
4149         }
4150
4151         sw_context->filp = file_priv;
4152         sw_context->fp = vmw_fpriv(file_priv);
4153         INIT_LIST_HEAD(&sw_context->ctx_list);
4154         sw_context->cur_query_bo = dev_priv->pinned_bo;
4155         sw_context->last_query_ctx = NULL;
4156         sw_context->needs_post_query_barrier = false;
4157         sw_context->dx_ctx_node = NULL;
4158         sw_context->dx_query_mob = NULL;
4159         sw_context->dx_query_ctx = NULL;
4160         memset(sw_context->res_cache, 0, sizeof(sw_context->res_cache));
4161         INIT_LIST_HEAD(&sw_context->res_relocations);
4162         INIT_LIST_HEAD(&sw_context->bo_relocations);
4163
4164         if (sw_context->staged_bindings)
4165                 vmw_binding_state_reset(sw_context->staged_bindings);
4166
4167         if (!sw_context->res_ht_initialized) {
4168                 ret = vmwgfx_ht_create(&sw_context->res_ht, VMW_RES_HT_ORDER);
4169                 if (unlikely(ret != 0))
4170                         goto out_unlock;
4171
4172                 sw_context->res_ht_initialized = true;
4173         }
4174
4175         INIT_LIST_HEAD(&sw_context->staged_cmd_res);
4176         sw_context->ctx = &val_ctx;
4177         ret = vmw_execbuf_tie_context(dev_priv, sw_context, dx_context_handle);
4178         if (unlikely(ret != 0))
4179                 goto out_err_nores;
4180
4181         ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
4182                                 command_size);
4183         if (unlikely(ret != 0))
4184                 goto out_err_nores;
4185
4186         ret = vmw_resources_reserve(sw_context);
4187         if (unlikely(ret != 0))
4188                 goto out_err_nores;
4189
4190         ret = vmw_validation_bo_reserve(&val_ctx, true);
4191         if (unlikely(ret != 0))
4192                 goto out_err_nores;
4193
4194         ret = vmw_validation_bo_validate(&val_ctx, true);
4195         if (unlikely(ret != 0))
4196                 goto out_err;
4197
4198         ret = vmw_validation_res_validate(&val_ctx, true);
4199         if (unlikely(ret != 0))
4200                 goto out_err;
4201
4202         vmw_validation_drop_ht(&val_ctx);
4203
4204         ret = mutex_lock_interruptible(&dev_priv->binding_mutex);
4205         if (unlikely(ret != 0)) {
4206                 ret = -ERESTARTSYS;
4207                 goto out_err;
4208         }
4209
4210         if (dev_priv->has_mob) {
4211                 ret = vmw_rebind_contexts(sw_context);
4212                 if (unlikely(ret != 0))
4213                         goto out_unlock_binding;
4214         }
4215
4216         if (!header) {
4217                 ret = vmw_execbuf_submit_fifo(dev_priv, kernel_commands,
4218                                               command_size, sw_context);
4219         } else {
4220                 ret = vmw_execbuf_submit_cmdbuf(dev_priv, header, command_size,
4221                                                 sw_context);
4222                 header = NULL;
4223         }
4224         mutex_unlock(&dev_priv->binding_mutex);
4225         if (ret)
4226                 goto out_err;
4227
4228         vmw_query_bo_switch_commit(dev_priv, sw_context);
4229         ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
4230                                          (user_fence_rep) ? &handle : NULL);
4231         /*
4232          * This error is harmless, because if fence submission fails,
4233          * vmw_fifo_send_fence will sync. The error will be propagated to
4234          * user-space in @fence_rep
4235          */
4236         if (ret != 0)
4237                 VMW_DEBUG_USER("Fence submission error. Syncing.\n");
4238
4239         vmw_execbuf_bindings_commit(sw_context, false);
4240         vmw_bind_dx_query_mob(sw_context);
4241         vmw_validation_res_unreserve(&val_ctx, false);
4242
4243         vmw_validation_bo_fence(sw_context->ctx, fence);
4244
4245         if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
4246                 __vmw_execbuf_release_pinned_bo(dev_priv, fence);
4247
4248         /*
4249          * If anything fails here, give up trying to export the fence and do a
4250          * sync since the user mode will not be able to sync the fence itself.
4251          * This ensures we are still functionally correct.
4252          */
4253         if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
4254
4255                 sync_file = sync_file_create(&fence->base);
4256                 if (!sync_file) {
4257                         VMW_DEBUG_USER("Sync file create failed for fence\n");
4258                         put_unused_fd(out_fence_fd);
4259                         out_fence_fd = -1;
4260
4261                         (void) vmw_fence_obj_wait(fence, false, false,
4262                                                   VMW_FENCE_WAIT_TIMEOUT);
4263                 }
4264         }
4265
4266         ret = vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
4267                                     user_fence_rep, fence, handle, out_fence_fd);
4268
4269         if (sync_file) {
4270                 if (ret) {
4271                         /* usercopy of fence failed, put the file object */
4272                         fput(sync_file->file);
4273                         put_unused_fd(out_fence_fd);
4274                 } else {
4275                         /* Link the fence with the FD created earlier */
4276                         fd_install(out_fence_fd, sync_file->file);
4277                 }
4278         }
4279
4280         /* Don't unreference when handing fence out */
4281         if (unlikely(out_fence != NULL)) {
4282                 *out_fence = fence;
4283                 fence = NULL;
4284         } else if (likely(fence != NULL)) {
4285                 vmw_fence_obj_unreference(&fence);
4286         }
4287
4288         vmw_cmdbuf_res_commit(&sw_context->staged_cmd_res);
4289         mutex_unlock(&dev_priv->cmdbuf_mutex);
4290
4291         /*
4292          * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
4293          * in resource destruction paths.
4294          */
4295         vmw_validation_unref_lists(&val_ctx);
4296
4297         return ret;
4298
4299 out_unlock_binding:
4300         mutex_unlock(&dev_priv->binding_mutex);
4301 out_err:
4302         vmw_validation_bo_backoff(&val_ctx);
4303 out_err_nores:
4304         vmw_execbuf_bindings_commit(sw_context, true);
4305         vmw_validation_res_unreserve(&val_ctx, true);
4306         vmw_resource_relocations_free(&sw_context->res_relocations);
4307         vmw_free_relocations(sw_context);
4308         if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
4309                 __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
4310 out_unlock:
4311         vmw_cmdbuf_res_revert(&sw_context->staged_cmd_res);
4312         vmw_validation_drop_ht(&val_ctx);
4313         WARN_ON(!list_empty(&sw_context->ctx_list));
4314         mutex_unlock(&dev_priv->cmdbuf_mutex);
4315
4316         /*
4317          * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
4318          * in resource destruction paths.
4319          */
4320         vmw_validation_unref_lists(&val_ctx);
4321 out_free_header:
4322         if (header)
4323                 vmw_cmdbuf_header_free(header);
4324 out_free_fence_fd:
4325         if (out_fence_fd >= 0)
4326                 put_unused_fd(out_fence_fd);
4327
4328         return ret;
4329 }
4330
4331 /**
4332  * vmw_execbuf_unpin_panic - Idle the fifo and unpin the query buffer.
4333  *
4334  * @dev_priv: The device private structure.
4335  *
4336  * This function is called to idle the fifo and unpin the query buffer if the
4337  * normal way to do this hits an error, which should typically be extremely
4338  * rare.
4339  */
4340 static void vmw_execbuf_unpin_panic(struct vmw_private *dev_priv)
4341 {
4342         VMW_DEBUG_USER("Can't unpin query buffer. Trying to recover.\n");
4343
4344         (void) vmw_fallback_wait(dev_priv, false, true, 0, false, 10*HZ);
4345         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
4346         if (dev_priv->dummy_query_bo_pinned) {
4347                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
4348                 dev_priv->dummy_query_bo_pinned = false;
4349         }
4350 }
4351
4352
4353 /**
4354  * __vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query
4355  * bo.
4356  *
4357  * @dev_priv: The device private structure.
4358  * @fence: If non-NULL should point to a struct vmw_fence_obj issued _after_ a
4359  * query barrier that flushes all queries touching the current buffer pointed to
4360  * by @dev_priv->pinned_bo
4361  *
4362  * This function should be used to unpin the pinned query bo, or as a query
4363  * barrier when we need to make sure that all queries have finished before the
4364  * next fifo command. (For example on hardware context destructions where the
4365  * hardware may otherwise leak unfinished queries).
4366  *
4367  * This function does not return any failure codes, but make attempts to do safe
4368  * unpinning in case of errors.
4369  *
4370  * The function will synchronize on the previous query barrier, and will thus
4371  * not finish until that barrier has executed.
4372  *
4373  * the @dev_priv->cmdbuf_mutex needs to be held by the current thread before
4374  * calling this function.
4375  */
4376 void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
4377                                      struct vmw_fence_obj *fence)
4378 {
4379         int ret = 0;
4380         struct vmw_fence_obj *lfence = NULL;
4381         DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
4382
4383         if (dev_priv->pinned_bo == NULL)
4384                 goto out_unlock;
4385
4386         ret = vmw_validation_add_bo(&val_ctx, dev_priv->pinned_bo, false,
4387                                     false);
4388         if (ret)
4389                 goto out_no_reserve;
4390
4391         ret = vmw_validation_add_bo(&val_ctx, dev_priv->dummy_query_bo, false,
4392                                     false);
4393         if (ret)
4394                 goto out_no_reserve;
4395
4396         ret = vmw_validation_bo_reserve(&val_ctx, false);
4397         if (ret)
4398                 goto out_no_reserve;
4399
4400         if (dev_priv->query_cid_valid) {
4401                 BUG_ON(fence != NULL);
4402                 ret = vmw_cmd_emit_dummy_query(dev_priv, dev_priv->query_cid);
4403                 if (ret)
4404                         goto out_no_emit;
4405                 dev_priv->query_cid_valid = false;
4406         }
4407
4408         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
4409         if (dev_priv->dummy_query_bo_pinned) {
4410                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
4411                 dev_priv->dummy_query_bo_pinned = false;
4412         }
4413         if (fence == NULL) {
4414                 (void) vmw_execbuf_fence_commands(NULL, dev_priv, &lfence,
4415                                                   NULL);
4416                 fence = lfence;
4417         }
4418         vmw_validation_bo_fence(&val_ctx, fence);
4419         if (lfence != NULL)
4420                 vmw_fence_obj_unreference(&lfence);
4421
4422         vmw_validation_unref_lists(&val_ctx);
4423         vmw_bo_unreference(&dev_priv->pinned_bo);
4424
4425 out_unlock:
4426         return;
4427 out_no_emit:
4428         vmw_validation_bo_backoff(&val_ctx);
4429 out_no_reserve:
4430         vmw_validation_unref_lists(&val_ctx);
4431         vmw_execbuf_unpin_panic(dev_priv);
4432         vmw_bo_unreference(&dev_priv->pinned_bo);
4433 }
4434
4435 /**
4436  * vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query bo.
4437  *
4438  * @dev_priv: The device private structure.
4439  *
4440  * This function should be used to unpin the pinned query bo, or as a query
4441  * barrier when we need to make sure that all queries have finished before the
4442  * next fifo command. (For example on hardware context destructions where the
4443  * hardware may otherwise leak unfinished queries).
4444  *
4445  * This function does not return any failure codes, but make attempts to do safe
4446  * unpinning in case of errors.
4447  *
4448  * The function will synchronize on the previous query barrier, and will thus
4449  * not finish until that barrier has executed.
4450  */
4451 void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv)
4452 {
4453         mutex_lock(&dev_priv->cmdbuf_mutex);
4454         if (dev_priv->query_cid_valid)
4455                 __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
4456         mutex_unlock(&dev_priv->cmdbuf_mutex);
4457 }
4458
4459 int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
4460                       struct drm_file *file_priv)
4461 {
4462         struct vmw_private *dev_priv = vmw_priv(dev);
4463         struct drm_vmw_execbuf_arg *arg = data;
4464         int ret;
4465         struct dma_fence *in_fence = NULL;
4466
4467         MKS_STAT_TIME_DECL(MKSSTAT_KERN_EXECBUF);
4468         MKS_STAT_TIME_PUSH(MKSSTAT_KERN_EXECBUF);
4469
4470         /*
4471          * Extend the ioctl argument while maintaining backwards compatibility:
4472          * We take different code paths depending on the value of arg->version.
4473          *
4474          * Note: The ioctl argument is extended and zeropadded by core DRM.
4475          */
4476         if (unlikely(arg->version > DRM_VMW_EXECBUF_VERSION ||
4477                      arg->version == 0)) {
4478                 VMW_DEBUG_USER("Incorrect execbuf version.\n");
4479                 ret = -EINVAL;
4480                 goto mksstats_out;
4481         }
4482
4483         switch (arg->version) {
4484         case 1:
4485                 /* For v1 core DRM have extended + zeropadded the data */
4486                 arg->context_handle = (uint32_t) -1;
4487                 break;
4488         case 2:
4489         default:
4490                 /* For v2 and later core DRM would have correctly copied it */
4491                 break;
4492         }
4493
4494         /* If imported a fence FD from elsewhere, then wait on it */
4495         if (arg->flags & DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD) {
4496                 in_fence = sync_file_get_fence(arg->imported_fence_fd);
4497
4498                 if (!in_fence) {
4499                         VMW_DEBUG_USER("Cannot get imported fence\n");
4500                         ret = -EINVAL;
4501                         goto mksstats_out;
4502                 }
4503
4504                 ret = vmw_wait_dma_fence(dev_priv->fman, in_fence);
4505                 if (ret)
4506                         goto out;
4507         }
4508
4509         ret = vmw_execbuf_process(file_priv, dev_priv,
4510                                   (void __user *)(unsigned long)arg->commands,
4511                                   NULL, arg->command_size, arg->throttle_us,
4512                                   arg->context_handle,
4513                                   (void __user *)(unsigned long)arg->fence_rep,
4514                                   NULL, arg->flags);
4515
4516         if (unlikely(ret != 0))
4517                 goto out;
4518
4519         vmw_kms_cursor_post_execbuf(dev_priv);
4520
4521 out:
4522         if (in_fence)
4523                 dma_fence_put(in_fence);
4524
4525 mksstats_out:
4526         MKS_STAT_TIME_POP(MKSSTAT_KERN_EXECBUF);
4527         return ret;
4528 }