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
  36 #define VMW_RES_HT_ORDER 12
  37
  38 /*
  39  * Helper macro to get dx_ctx_node if available otherwise print an error
  40  * message. This is for use in command verifier function where if dx_ctx_node
  41  * is not set then command is invalid.
  42  */
  43 #define VMW_GET_CTX_NODE(__sw_context)                                        \
  44 ({                                                                            \
  45         __sw_context->dx_ctx_node ? __sw_context->dx_ctx_node : ({            \
  46                 VMW_DEBUG_USER("SM context is not set at %s\n", __func__);    \
  47                 __sw_context->dx_ctx_node;                                    \
  48         });                                                                   \
  49 })
  50
  51 #define VMW_DECLARE_CMD_VAR(__var, __type)                                    \
  52         struct {                                                              \
  53                 SVGA3dCmdHeader header;                                       \
  54                 __type body;                                                  \
  55         } __var
  56
  57 /**
  58  * struct vmw_relocation - Buffer object relocation
  59  *
  60  * @head: List head for the command submission context's relocation list
  61  * @vbo: Non ref-counted pointer to buffer object
  62  * @mob_loc: Pointer to location for mob id to be modified
  63  * @location: Pointer to location for guest pointer to be modified
  64  */
  65 struct vmw_relocation {
  66         struct list_head head;
  67         struct vmw_buffer_object *vbo;
  68         union {
  69                 SVGAMobId *mob_loc;
  70                 SVGAGuestPtr *location;
  71         };
  72 };
  73
  74 /**
  75  * enum vmw_resource_relocation_type - Relocation type for resources
  76  *
  77  * @vmw_res_rel_normal: Traditional relocation. The resource id in the
  78  * command stream is replaced with the actual id after validation.
  79  * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced
  80  * with a NOP.
  81  * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id after
  82  * validation is -1, the command is replaced with a NOP. Otherwise no action.
  83  * @vmw_res_rel_max: Last value in the enum - used for error checking
  84 */
  85 enum vmw_resource_relocation_type {
  86         vmw_res_rel_normal,
  87         vmw_res_rel_nop,
  88         vmw_res_rel_cond_nop,
  89         vmw_res_rel_max
  90 };
  91
  92 /**
  93  * struct vmw_resource_relocation - Relocation info for resources
  94  *
  95  * @head: List head for the software context's relocation list.
  96  * @res: Non-ref-counted pointer to the resource.
  97  * @offset: Offset of single byte entries into the command buffer where the id
  98  * that needs fixup is located.
  99  * @rel_type: Type of relocation.
 100  */
 101 struct vmw_resource_relocation {
 102         struct list_head head;
 103         const struct vmw_resource *res;
 104         u32 offset:29;
 105         enum vmw_resource_relocation_type rel_type:3;
 106 };
 107
 108 /**
 109  * struct vmw_ctx_validation_info - Extra validation metadata for contexts
 110  *
 111  * @head: List head of context list
 112  * @ctx: The context resource
 113  * @cur: The context's persistent binding state
 114  * @staged: The binding state changes of this command buffer
 115  */
 116 struct vmw_ctx_validation_info {
 117         struct list_head head;
 118         struct vmw_resource *ctx;
 119         struct vmw_ctx_binding_state *cur;
 120         struct vmw_ctx_binding_state *staged;
 121 };
 122
 123 /**
 124  * struct vmw_cmd_entry - Describe a command for the verifier
 125  *
 126  * @func: Call-back to handle the command.
 127  * @user_allow: Whether allowed from the execbuf ioctl.
 128  * @gb_disable: Whether disabled if guest-backed objects are available.
 129  * @gb_enable: Whether enabled iff guest-backed objects are available.
 130  * @cmd_name: Name of the command.
 131  */
 132 struct vmw_cmd_entry {
 133         int (*func) (struct vmw_private *, struct vmw_sw_context *,
 134                      SVGA3dCmdHeader *);
 135         bool user_allow;
 136         bool gb_disable;
 137         bool gb_enable;
 138         const char *cmd_name;
 139 };
 140
 141 #define VMW_CMD_DEF(_cmd, _func, _user_allow, _gb_disable, _gb_enable)  \
 142         [(_cmd) - SVGA_3D_CMD_BASE] = {(_func), (_user_allow),\
 143                                        (_gb_disable), (_gb_enable), #_cmd}
 144
 145 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
 146                                         struct vmw_sw_context *sw_context,
 147                                         struct vmw_resource *ctx);
 148 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
 149                                  struct vmw_sw_context *sw_context,
 150                                  SVGAMobId *id,
 151                                  struct vmw_buffer_object **vmw_bo_p);
 152 /**
 153  * vmw_ptr_diff - Compute the offset from a to b in bytes
 154  *
 155  * @a: A starting pointer.
 156  * @b: A pointer offset in the same address space.
 157  *
 158  * Returns: The offset in bytes between the two pointers.
 159  */
 160 static size_t vmw_ptr_diff(void *a, void *b)
 161 {
 162         return (unsigned long) b - (unsigned long) a;
 163 }
 164
 165 /**
 166  * vmw_execbuf_bindings_commit - Commit modified binding state
 167  *
 168  * @sw_context: The command submission context
 169  * @backoff: Whether this is part of the error path and binding state changes
 170  * should be ignored
 171  */
 172 static void vmw_execbuf_bindings_commit(struct vmw_sw_context *sw_context,
 173                                         bool backoff)
 174 {
 175         struct vmw_ctx_validation_info *entry;
 176
 177         list_for_each_entry(entry, &sw_context->ctx_list, head) {
 178                 if (!backoff)
 179                         vmw_binding_state_commit(entry->cur, entry->staged);
 180
 181                 if (entry->staged != sw_context->staged_bindings)
 182                         vmw_binding_state_free(entry->staged);
 183                 else
 184                         sw_context->staged_bindings_inuse = false;
 185         }
 186
 187         /* List entries are freed with the validation context */
 188         INIT_LIST_HEAD(&sw_context->ctx_list);
 189 }
 190
 191 /**
 192  * vmw_bind_dx_query_mob - Bind the DX query MOB if referenced
 193  *
 194  * @sw_context: The command submission context
 195  */
 196 static void vmw_bind_dx_query_mob(struct vmw_sw_context *sw_context)
 197 {
 198         if (sw_context->dx_query_mob)
 199                 vmw_context_bind_dx_query(sw_context->dx_query_ctx,
 200                                           sw_context->dx_query_mob);
 201 }
 202
 203 /**
 204  * vmw_cmd_ctx_first_setup - Perform the setup needed when a context is added to
 205  * the validate list.
 206  *
 207  * @dev_priv: Pointer to the device private:
 208  * @sw_context: The command submission context
 209  * @res: Pointer to the resource
 210  * @node: The validation node holding the context resource metadata
 211  */
 212 static int vmw_cmd_ctx_first_setup(struct vmw_private *dev_priv,
 213                                    struct vmw_sw_context *sw_context,
 214                                    struct vmw_resource *res,
 215                                    struct vmw_ctx_validation_info *node)
 216 {
 217         int ret;
 218
 219         ret = vmw_resource_context_res_add(dev_priv, sw_context, res);
 220         if (unlikely(ret != 0))
 221                 goto out_err;
 222
 223         if (!sw_context->staged_bindings) {
 224                 sw_context->staged_bindings = vmw_binding_state_alloc(dev_priv);
 225                 if (IS_ERR(sw_context->staged_bindings)) {
 226                         ret = PTR_ERR(sw_context->staged_bindings);
 227                         sw_context->staged_bindings = NULL;
 228                         goto out_err;
 229                 }
 230         }
 231
 232         if (sw_context->staged_bindings_inuse) {
 233                 node->staged = vmw_binding_state_alloc(dev_priv);
 234                 if (IS_ERR(node->staged)) {
 235                         ret = PTR_ERR(node->staged);
 236                         node->staged = NULL;
 237                         goto out_err;
 238                 }
 239         } else {
 240                 node->staged = sw_context->staged_bindings;
 241                 sw_context->staged_bindings_inuse = true;
 242         }
 243
 244         node->ctx = res;
 245         node->cur = vmw_context_binding_state(res);
 246         list_add_tail(&node->head, &sw_context->ctx_list);
 247
 248         return 0;
 249
 250 out_err:
 251         return ret;
 252 }
 253
 254 /**
 255  * vmw_execbuf_res_size - calculate extra size fore the resource validation node
 256  *
 257  * @dev_priv: Pointer to the device private struct.
 258  * @res_type: The resource type.
 259  *
 260  * Guest-backed contexts and DX contexts require extra size to store execbuf
 261  * private information in the validation node. Typically the binding manager
 262  * associated data structures.
 263  *
 264  * Returns: The extra size requirement based on resource type.
 265  */
 266 static unsigned int vmw_execbuf_res_size(struct vmw_private *dev_priv,
 267                                          enum vmw_res_type res_type)
 268 {
 269         return (res_type == vmw_res_dx_context ||
 270                 (res_type == vmw_res_context && dev_priv->has_mob)) ?
 271                 sizeof(struct vmw_ctx_validation_info) : 0;
 272 }
 273
 274 /**
 275  * vmw_execbuf_rcache_update - Update a resource-node cache entry
 276  *
 277  * @rcache: Pointer to the entry to update.
 278  * @res: Pointer to the resource.
 279  * @private: Pointer to the execbuf-private space in the resource validation
 280  * node.
 281  */
 282 static void vmw_execbuf_rcache_update(struct vmw_res_cache_entry *rcache,
 283                                       struct vmw_resource *res,
 284                                       void *private)
 285 {
 286         rcache->res = res;
 287         rcache->private = private;
 288         rcache->valid = 1;
 289         rcache->valid_handle = 0;
 290 }
 291
 292 /**
 293  * vmw_execbuf_res_noref_val_add - Add a resource described by an unreferenced
 294  * rcu-protected pointer to the validation list.
 295  *
 296  * @sw_context: Pointer to the software context.
 297  * @res: Unreferenced rcu-protected pointer to the resource.
 298  * @dirty: Whether to change dirty status.
 299  *
 300  * Returns: 0 on success. Negative error code on failure. Typical error codes
 301  * are %-EINVAL on inconsistency and %-ESRCH if the resource was doomed.
 302  */
 303 static int vmw_execbuf_res_noref_val_add(struct vmw_sw_context *sw_context,
 304                                          struct vmw_resource *res,
 305                                          u32 dirty)
 306 {
 307         struct vmw_private *dev_priv = res->dev_priv;
 308         int ret;
 309         enum vmw_res_type res_type = vmw_res_type(res);
 310         struct vmw_res_cache_entry *rcache;
 311         struct vmw_ctx_validation_info *ctx_info;
 312         bool first_usage;
 313         unsigned int priv_size;
 314
 315         rcache = &sw_context->res_cache[res_type];
 316         if (likely(rcache->valid && rcache->res == res)) {
 317                 if (dirty)
 318                         vmw_validation_res_set_dirty(sw_context->ctx,
 319                                                      rcache->private, dirty);
 320                 vmw_user_resource_noref_release();
 321                 return 0;
 322         }
 323
 324         priv_size = vmw_execbuf_res_size(dev_priv, res_type);
 325         ret = vmw_validation_add_resource(sw_context->ctx, res, priv_size,
 326                                           dirty, (void **)&ctx_info,
 327                                           &first_usage);
 328         vmw_user_resource_noref_release();
 329         if (ret)
 330                 return ret;
 331
 332         if (priv_size && first_usage) {
 333                 ret = vmw_cmd_ctx_first_setup(dev_priv, sw_context, res,
 334                                               ctx_info);
 335                 if (ret) {
 336                         VMW_DEBUG_USER("Failed first usage context setup.\n");
 337                         return ret;
 338                 }
 339         }
 340
 341         vmw_execbuf_rcache_update(rcache, res, ctx_info);
 342         return 0;
 343 }
 344
 345 /**
 346  * vmw_execbuf_res_noctx_val_add - Add a non-context resource to the resource
 347  * validation list if it's not already on it
 348  *
 349  * @sw_context: Pointer to the software context.
 350  * @res: Pointer to the resource.
 351  * @dirty: Whether to change dirty status.
 352  *
 353  * Returns: Zero on success. Negative error code on failure.
 354  */
 355 static int vmw_execbuf_res_noctx_val_add(struct vmw_sw_context *sw_context,
 356                                          struct vmw_resource *res,
 357                                          u32 dirty)
 358 {
 359         struct vmw_res_cache_entry *rcache;
 360         enum vmw_res_type res_type = vmw_res_type(res);
 361         void *ptr;
 362         int ret;
 363
 364         rcache = &sw_context->res_cache[res_type];
 365         if (likely(rcache->valid && rcache->res == res)) {
 366                 if (dirty)
 367                         vmw_validation_res_set_dirty(sw_context->ctx,
 368                                                      rcache->private, dirty);
 369                 return 0;
 370         }
 371
 372         ret = vmw_validation_add_resource(sw_context->ctx, res, 0, dirty,
 373                                           &ptr, NULL);
 374         if (ret)
 375                 return ret;
 376
 377         vmw_execbuf_rcache_update(rcache, res, ptr);
 378
 379         return 0;
 380 }
 381
 382 /**
 383  * vmw_view_res_val_add - Add a view and the surface it's pointing to to the
 384  * validation list
 385  *
 386  * @sw_context: The software context holding the validation list.
 387  * @view: Pointer to the view resource.
 388  *
 389  * Returns 0 if success, negative error code otherwise.
 390  */
 391 static int vmw_view_res_val_add(struct vmw_sw_context *sw_context,
 392                                 struct vmw_resource *view)
 393 {
 394         int ret;
 395
 396         /*
 397          * First add the resource the view is pointing to, otherwise it may be
 398          * swapped out when the view is validated.
 399          */
 400         ret = vmw_execbuf_res_noctx_val_add(sw_context, vmw_view_srf(view),
 401                                             vmw_view_dirtying(view));
 402         if (ret)
 403                 return ret;
 404
 405         return vmw_execbuf_res_noctx_val_add(sw_context, view,
 406                                              VMW_RES_DIRTY_NONE);
 407 }
 408
 409 /**
 410  * vmw_view_id_val_add - Look up a view and add it and the surface it's pointing
 411  * to to the validation list.
 412  *
 413  * @sw_context: The software context holding the validation list.
 414  * @view_type: The view type to look up.
 415  * @id: view id of the view.
 416  *
 417  * The view is represented by a view id and the DX context it's created on, or
 418  * scheduled for creation on. If there is no DX context set, the function will
 419  * return an -EINVAL error pointer.
 420  *
 421  * Returns: Unreferenced pointer to the resource on success, negative error
 422  * pointer on failure.
 423  */
 424 static struct vmw_resource *
 425 vmw_view_id_val_add(struct vmw_sw_context *sw_context,
 426                     enum vmw_view_type view_type, u32 id)
 427 {
 428         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
 429         struct vmw_resource *view;
 430         int ret;
 431
 432         if (!ctx_node)
 433                 return ERR_PTR(-EINVAL);
 434
 435         view = vmw_view_lookup(sw_context->man, view_type, id);
 436         if (IS_ERR(view))
 437                 return view;
 438
 439         ret = vmw_view_res_val_add(sw_context, view);
 440         if (ret)
 441                 return ERR_PTR(ret);
 442
 443         return view;
 444 }
 445
 446 /**
 447  * vmw_resource_context_res_add - Put resources previously bound to a context on
 448  * the validation list
 449  *
 450  * @dev_priv: Pointer to a device private structure
 451  * @sw_context: Pointer to a software context used for this command submission
 452  * @ctx: Pointer to the context resource
 453  *
 454  * This function puts all resources that were previously bound to @ctx on the
 455  * resource validation list. This is part of the context state reemission
 456  */
 457 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
 458                                         struct vmw_sw_context *sw_context,
 459                                         struct vmw_resource *ctx)
 460 {
 461         struct list_head *binding_list;
 462         struct vmw_ctx_bindinfo *entry;
 463         int ret = 0;
 464         struct vmw_resource *res;
 465         u32 i;
 466         u32 cotable_max = has_sm5_context(ctx->dev_priv) ?
 467                 SVGA_COTABLE_MAX : SVGA_COTABLE_DX10_MAX;
 468
 469         /* Add all cotables to the validation list. */
 470         if (has_sm4_context(dev_priv) &&
 471             vmw_res_type(ctx) == vmw_res_dx_context) {
 472                 for (i = 0; i < cotable_max; ++i) {
 473                         res = vmw_context_cotable(ctx, i);
 474                         if (IS_ERR(res))
 475                                 continue;
 476
 477                         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
 478                                                             VMW_RES_DIRTY_SET);
 479                         if (unlikely(ret != 0))
 480                                 return ret;
 481                 }
 482         }
 483
 484         /* Add all resources bound to the context to the validation list */
 485         mutex_lock(&dev_priv->binding_mutex);
 486         binding_list = vmw_context_binding_list(ctx);
 487
 488         list_for_each_entry(entry, binding_list, ctx_list) {
 489                 if (vmw_res_type(entry->res) == vmw_res_view)
 490                         ret = vmw_view_res_val_add(sw_context, entry->res);
 491                 else
 492                         ret = vmw_execbuf_res_noctx_val_add
 493                                 (sw_context, entry->res,
 494                                  vmw_binding_dirtying(entry->bt));
 495                 if (unlikely(ret != 0))
 496                         break;
 497         }
 498
 499         if (has_sm4_context(dev_priv) &&
 500             vmw_res_type(ctx) == vmw_res_dx_context) {
 501                 struct vmw_buffer_object *dx_query_mob;
 502
 503                 dx_query_mob = vmw_context_get_dx_query_mob(ctx);
 504                 if (dx_query_mob)
 505                         ret = vmw_validation_add_bo(sw_context->ctx,
 506                                                     dx_query_mob, true, false);
 507         }
 508
 509         mutex_unlock(&dev_priv->binding_mutex);
 510         return ret;
 511 }
 512
 513 /**
 514  * vmw_resource_relocation_add - Add a relocation to the relocation list
 515  *
 516  * @sw_context: Pointer to the software context.
 517  * @res: The resource.
 518  * @offset: Offset into the command buffer currently being parsed where the id
 519  * that needs fixup is located. Granularity is one byte.
 520  * @rel_type: Relocation type.
 521  */
 522 static int vmw_resource_relocation_add(struct vmw_sw_context *sw_context,
 523                                        const struct vmw_resource *res,
 524                                        unsigned long offset,
 525                                        enum vmw_resource_relocation_type
 526                                        rel_type)
 527 {
 528         struct vmw_resource_relocation *rel;
 529
 530         rel = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*rel));
 531         if (unlikely(!rel)) {
 532                 VMW_DEBUG_USER("Failed to allocate a resource relocation.\n");
 533                 return -ENOMEM;
 534         }
 535
 536         rel->res = res;
 537         rel->offset = offset;
 538         rel->rel_type = rel_type;
 539         list_add_tail(&rel->head, &sw_context->res_relocations);
 540
 541         return 0;
 542 }
 543
 544 /**
 545  * vmw_resource_relocations_free - Free all relocations on a list
 546  *
 547  * @list: Pointer to the head of the relocation list
 548  */
 549 static void vmw_resource_relocations_free(struct list_head *list)
 550 {
 551         /* Memory is validation context memory, so no need to free it */
 552         INIT_LIST_HEAD(list);
 553 }
 554
 555 /**
 556  * vmw_resource_relocations_apply - Apply all relocations on a list
 557  *
 558  * @cb: Pointer to the start of the command buffer bein patch. This need not be
 559  * the same buffer as the one being parsed when the relocation list was built,
 560  * but the contents must be the same modulo the resource ids.
 561  * @list: Pointer to the head of the relocation list.
 562  */
 563 static void vmw_resource_relocations_apply(uint32_t *cb,
 564                                            struct list_head *list)
 565 {
 566         struct vmw_resource_relocation *rel;
 567
 568         /* Validate the struct vmw_resource_relocation member size */
 569         BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29));
 570         BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3));
 571
 572         list_for_each_entry(rel, list, head) {
 573                 u32 *addr = (u32 *)((unsigned long) cb + rel->offset);
 574                 switch (rel->rel_type) {
 575                 case vmw_res_rel_normal:
 576                         *addr = rel->res->id;
 577                         break;
 578                 case vmw_res_rel_nop:
 579                         *addr = SVGA_3D_CMD_NOP;
 580                         break;
 581                 default:
 582                         if (rel->res->id == -1)
 583                                 *addr = SVGA_3D_CMD_NOP;
 584                         break;
 585                 }
 586         }
 587 }
 588
 589 static int vmw_cmd_invalid(struct vmw_private *dev_priv,
 590                            struct vmw_sw_context *sw_context,
 591                            SVGA3dCmdHeader *header)
 592 {
 593         return -EINVAL;
 594 }
 595
 596 static int vmw_cmd_ok(struct vmw_private *dev_priv,
 597                       struct vmw_sw_context *sw_context,
 598                       SVGA3dCmdHeader *header)
 599 {
 600         return 0;
 601 }
 602
 603 /**
 604  * vmw_resources_reserve - Reserve all resources on the sw_context's resource
 605  * list.
 606  *
 607  * @sw_context: Pointer to the software context.
 608  *
 609  * Note that since vmware's command submission currently is protected by the
 610  * cmdbuf mutex, no fancy deadlock avoidance is required for resources, since
 611  * only a single thread at once will attempt this.
 612  */
 613 static int vmw_resources_reserve(struct vmw_sw_context *sw_context)
 614 {
 615         int ret;
 616
 617         ret = vmw_validation_res_reserve(sw_context->ctx, true);
 618         if (ret)
 619                 return ret;
 620
 621         if (sw_context->dx_query_mob) {
 622                 struct vmw_buffer_object *expected_dx_query_mob;
 623
 624                 expected_dx_query_mob =
 625                         vmw_context_get_dx_query_mob(sw_context->dx_query_ctx);
 626                 if (expected_dx_query_mob &&
 627                     expected_dx_query_mob != sw_context->dx_query_mob) {
 628                         ret = -EINVAL;
 629                 }
 630         }
 631
 632         return ret;
 633 }
 634
 635 /**
 636  * vmw_cmd_res_check - Check that a resource is present and if so, put it on the
 637  * resource validate list unless it's already there.
 638  *
 639  * @dev_priv: Pointer to a device private structure.
 640  * @sw_context: Pointer to the software context.
 641  * @res_type: Resource type.
 642  * @dirty: Whether to change dirty status.
 643  * @converter: User-space visisble type specific information.
 644  * @id_loc: Pointer to the location in the command buffer currently being parsed
 645  * from where the user-space resource id handle is located.
 646  * @p_res: Pointer to pointer to resource validalidation node. Populated on
 647  * exit.
 648  */
 649 static int
 650 vmw_cmd_res_check(struct vmw_private *dev_priv,
 651                   struct vmw_sw_context *sw_context,
 652                   enum vmw_res_type res_type,
 653                   u32 dirty,
 654                   const struct vmw_user_resource_conv *converter,
 655                   uint32_t *id_loc,
 656                   struct vmw_resource **p_res)
 657 {
 658         struct vmw_res_cache_entry *rcache = &sw_context->res_cache[res_type];
 659         struct vmw_resource *res;
 660         int ret;
 661
 662         if (p_res)
 663                 *p_res = NULL;
 664
 665         if (*id_loc == SVGA3D_INVALID_ID) {
 666                 if (res_type == vmw_res_context) {
 667                         VMW_DEBUG_USER("Illegal context invalid id.\n");
 668                         return -EINVAL;
 669                 }
 670                 return 0;
 671         }
 672
 673         if (likely(rcache->valid_handle && *id_loc == rcache->handle)) {
 674                 res = rcache->res;
 675                 if (dirty)
 676                         vmw_validation_res_set_dirty(sw_context->ctx,
 677                                                      rcache->private, dirty);
 678         } else {
 679                 unsigned int size = vmw_execbuf_res_size(dev_priv, res_type);
 680
 681                 ret = vmw_validation_preload_res(sw_context->ctx, size);
 682                 if (ret)
 683                         return ret;
 684
 685                 res = vmw_user_resource_noref_lookup_handle
 686                         (dev_priv, sw_context->fp->tfile, *id_loc, converter);
 687                 if (IS_ERR(res)) {
 688                         VMW_DEBUG_USER("Could not find/use resource 0x%08x.\n",
 689                                        (unsigned int) *id_loc);
 690                         return PTR_ERR(res);
 691                 }
 692
 693                 ret = vmw_execbuf_res_noref_val_add(sw_context, res, dirty);
 694                 if (unlikely(ret != 0))
 695                         return ret;
 696
 697                 if (rcache->valid && rcache->res == res) {
 698                         rcache->valid_handle = true;
 699                         rcache->handle = *id_loc;
 700                 }
 701         }
 702
 703         ret = vmw_resource_relocation_add(sw_context, res,
 704                                           vmw_ptr_diff(sw_context->buf_start,
 705                                                        id_loc),
 706                                           vmw_res_rel_normal);
 707         if (p_res)
 708                 *p_res = res;
 709
 710         return 0;
 711 }
 712
 713 /**
 714  * vmw_rebind_all_dx_query - Rebind DX query associated with the context
 715  *
 716  * @ctx_res: context the query belongs to
 717  *
 718  * This function assumes binding_mutex is held.
 719  */
 720 static int vmw_rebind_all_dx_query(struct vmw_resource *ctx_res)
 721 {
 722         struct vmw_private *dev_priv = ctx_res->dev_priv;
 723         struct vmw_buffer_object *dx_query_mob;
 724         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindAllQuery);
 725
 726         dx_query_mob = vmw_context_get_dx_query_mob(ctx_res);
 727
 728         if (!dx_query_mob || dx_query_mob->dx_query_ctx)
 729                 return 0;
 730
 731         cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof(*cmd), ctx_res->id);
 732         if (cmd == NULL)
 733                 return -ENOMEM;
 734
 735         cmd->header.id = SVGA_3D_CMD_DX_BIND_ALL_QUERY;
 736         cmd->header.size = sizeof(cmd->body);
 737         cmd->body.cid = ctx_res->id;
 738         cmd->body.mobid = dx_query_mob->base.resource->start;
 739         vmw_cmd_commit(dev_priv, sizeof(*cmd));
 740
 741         vmw_context_bind_dx_query(ctx_res, dx_query_mob);
 742
 743         return 0;
 744 }
 745
 746 /**
 747  * vmw_rebind_contexts - Rebind all resources previously bound to referenced
 748  * contexts.
 749  *
 750  * @sw_context: Pointer to the software context.
 751  *
 752  * Rebind context binding points that have been scrubbed because of eviction.
 753  */
 754 static int vmw_rebind_contexts(struct vmw_sw_context *sw_context)
 755 {
 756         struct vmw_ctx_validation_info *val;
 757         int ret;
 758
 759         list_for_each_entry(val, &sw_context->ctx_list, head) {
 760                 ret = vmw_binding_rebind_all(val->cur);
 761                 if (unlikely(ret != 0)) {
 762                         if (ret != -ERESTARTSYS)
 763                                 VMW_DEBUG_USER("Failed to rebind context.\n");
 764                         return ret;
 765                 }
 766
 767                 ret = vmw_rebind_all_dx_query(val->ctx);
 768                 if (ret != 0) {
 769                         VMW_DEBUG_USER("Failed to rebind queries.\n");
 770                         return ret;
 771                 }
 772         }
 773
 774         return 0;
 775 }
 776
 777 /**
 778  * vmw_view_bindings_add - Add an array of view bindings to a context binding
 779  * state tracker.
 780  *
 781  * @sw_context: The execbuf state used for this command.
 782  * @view_type: View type for the bindings.
 783  * @binding_type: Binding type for the bindings.
 784  * @shader_slot: The shader slot to user for the bindings.
 785  * @view_ids: Array of view ids to be bound.
 786  * @num_views: Number of view ids in @view_ids.
 787  * @first_slot: The binding slot to be used for the first view id in @view_ids.
 788  */
 789 static int vmw_view_bindings_add(struct vmw_sw_context *sw_context,
 790                                  enum vmw_view_type view_type,
 791                                  enum vmw_ctx_binding_type binding_type,
 792                                  uint32 shader_slot,
 793                                  uint32 view_ids[], u32 num_views,
 794                                  u32 first_slot)
 795 {
 796         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
 797         u32 i;
 798
 799         if (!ctx_node)
 800                 return -EINVAL;
 801
 802         for (i = 0; i < num_views; ++i) {
 803                 struct vmw_ctx_bindinfo_view binding;
 804                 struct vmw_resource *view = NULL;
 805
 806                 if (view_ids[i] != SVGA3D_INVALID_ID) {
 807                         view = vmw_view_id_val_add(sw_context, view_type,
 808                                                    view_ids[i]);
 809                         if (IS_ERR(view)) {
 810                                 VMW_DEBUG_USER("View not found.\n");
 811                                 return PTR_ERR(view);
 812                         }
 813                 }
 814                 binding.bi.ctx = ctx_node->ctx;
 815                 binding.bi.res = view;
 816                 binding.bi.bt = binding_type;
 817                 binding.shader_slot = shader_slot;
 818                 binding.slot = first_slot + i;
 819                 vmw_binding_add(ctx_node->staged, &binding.bi,
 820                                 shader_slot, binding.slot);
 821         }
 822
 823         return 0;
 824 }
 825
 826 /**
 827  * vmw_cmd_cid_check - Check a command header for valid context information.
 828  *
 829  * @dev_priv: Pointer to a device private structure.
 830  * @sw_context: Pointer to the software context.
 831  * @header: A command header with an embedded user-space context handle.
 832  *
 833  * Convenience function: Call vmw_cmd_res_check with the user-space context
 834  * handle embedded in @header.
 835  */
 836 static int vmw_cmd_cid_check(struct vmw_private *dev_priv,
 837                              struct vmw_sw_context *sw_context,
 838                              SVGA3dCmdHeader *header)
 839 {
 840         VMW_DECLARE_CMD_VAR(*cmd, uint32_t) =
 841                 container_of(header, typeof(*cmd), header);
 842
 843         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
 844                                  VMW_RES_DIRTY_SET, user_context_converter,
 845                                  &cmd->body, NULL);
 846 }
 847
 848 /**
 849  * vmw_execbuf_info_from_res - Get the private validation metadata for a
 850  * recently validated resource
 851  *
 852  * @sw_context: Pointer to the command submission context
 853  * @res: The resource
 854  *
 855  * The resource pointed to by @res needs to be present in the command submission
 856  * context's resource cache and hence the last resource of that type to be
 857  * processed by the validation code.
 858  *
 859  * Return: a pointer to the private metadata of the resource, or NULL if it
 860  * wasn't found
 861  */
 862 static struct vmw_ctx_validation_info *
 863 vmw_execbuf_info_from_res(struct vmw_sw_context *sw_context,
 864                           struct vmw_resource *res)
 865 {
 866         struct vmw_res_cache_entry *rcache =
 867                 &sw_context->res_cache[vmw_res_type(res)];
 868
 869         if (rcache->valid && rcache->res == res)
 870                 return rcache->private;
 871
 872         WARN_ON_ONCE(true);
 873         return NULL;
 874 }
 875
 876 static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv,
 877                                            struct vmw_sw_context *sw_context,
 878                                            SVGA3dCmdHeader *header)
 879 {
 880         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetRenderTarget);
 881         struct vmw_resource *ctx;
 882         struct vmw_resource *res;
 883         int ret;
 884
 885         cmd = container_of(header, typeof(*cmd), header);
 886
 887         if (cmd->body.type >= SVGA3D_RT_MAX) {
 888                 VMW_DEBUG_USER("Illegal render target type %u.\n",
 889                                (unsigned int) cmd->body.type);
 890                 return -EINVAL;
 891         }
 892
 893         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
 894                                 VMW_RES_DIRTY_SET, user_context_converter,
 895                                 &cmd->body.cid, &ctx);
 896         if (unlikely(ret != 0))
 897                 return ret;
 898
 899         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 900                                 VMW_RES_DIRTY_SET, user_surface_converter,
 901                                 &cmd->body.target.sid, &res);
 902         if (unlikely(ret))
 903                 return ret;
 904
 905         if (dev_priv->has_mob) {
 906                 struct vmw_ctx_bindinfo_view binding;
 907                 struct vmw_ctx_validation_info *node;
 908
 909                 node = vmw_execbuf_info_from_res(sw_context, ctx);
 910                 if (!node)
 911                         return -EINVAL;
 912
 913                 binding.bi.ctx = ctx;
 914                 binding.bi.res = res;
 915                 binding.bi.bt = vmw_ctx_binding_rt;
 916                 binding.slot = cmd->body.type;
 917                 vmw_binding_add(node->staged, &binding.bi, 0, binding.slot);
 918         }
 919
 920         return 0;
 921 }
 922
 923 static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv,
 924                                       struct vmw_sw_context *sw_context,
 925                                       SVGA3dCmdHeader *header)
 926 {
 927         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceCopy);
 928         int ret;
 929
 930         cmd = container_of(header, typeof(*cmd), header);
 931
 932         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 933                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 934                                 &cmd->body.src.sid, NULL);
 935         if (ret)
 936                 return ret;
 937
 938         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 939                                  VMW_RES_DIRTY_SET, user_surface_converter,
 940                                  &cmd->body.dest.sid, NULL);
 941 }
 942
 943 static int vmw_cmd_buffer_copy_check(struct vmw_private *dev_priv,
 944                                      struct vmw_sw_context *sw_context,
 945                                      SVGA3dCmdHeader *header)
 946 {
 947         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBufferCopy);
 948         int ret;
 949
 950         cmd = container_of(header, typeof(*cmd), header);
 951         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 952                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 953                                 &cmd->body.src, NULL);
 954         if (ret != 0)
 955                 return ret;
 956
 957         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 958                                  VMW_RES_DIRTY_SET, user_surface_converter,
 959                                  &cmd->body.dest, NULL);
 960 }
 961
 962 static int vmw_cmd_pred_copy_check(struct vmw_private *dev_priv,
 963                                    struct vmw_sw_context *sw_context,
 964                                    SVGA3dCmdHeader *header)
 965 {
 966         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXPredCopyRegion);
 967         int ret;
 968
 969         cmd = container_of(header, typeof(*cmd), header);
 970         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 971                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 972                                 &cmd->body.srcSid, NULL);
 973         if (ret != 0)
 974                 return ret;
 975
 976         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 977                                  VMW_RES_DIRTY_SET, user_surface_converter,
 978                                  &cmd->body.dstSid, NULL);
 979 }
 980
 981 static int vmw_cmd_stretch_blt_check(struct vmw_private *dev_priv,
 982                                      struct vmw_sw_context *sw_context,
 983                                      SVGA3dCmdHeader *header)
 984 {
 985         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceStretchBlt);
 986         int ret;
 987
 988         cmd = container_of(header, typeof(*cmd), header);
 989         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 990                                 VMW_RES_DIRTY_NONE, user_surface_converter,
 991                                 &cmd->body.src.sid, NULL);
 992         if (unlikely(ret != 0))
 993                 return ret;
 994
 995         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
 996                                  VMW_RES_DIRTY_SET, user_surface_converter,
 997                                  &cmd->body.dest.sid, NULL);
 998 }
 999
1000 static int vmw_cmd_blt_surf_screen_check(struct vmw_private *dev_priv,
1001                                          struct vmw_sw_context *sw_context,
1002                                          SVGA3dCmdHeader *header)
1003 {
1004         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBlitSurfaceToScreen) =
1005                 container_of(header, typeof(*cmd), header);
1006
1007         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1008                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1009                                  &cmd->body.srcImage.sid, NULL);
1010 }
1011
1012 static int vmw_cmd_present_check(struct vmw_private *dev_priv,
1013                                  struct vmw_sw_context *sw_context,
1014                                  SVGA3dCmdHeader *header)
1015 {
1016         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdPresent) =
1017                 container_of(header, typeof(*cmd), header);
1018
1019         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1020                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1021                                  &cmd->body.sid, NULL);
1022 }
1023
1024 /**
1025  * vmw_query_bo_switch_prepare - Prepare to switch pinned buffer for queries.
1026  *
1027  * @dev_priv: The device private structure.
1028  * @new_query_bo: The new buffer holding query results.
1029  * @sw_context: The software context used for this command submission.
1030  *
1031  * This function checks whether @new_query_bo is suitable for holding query
1032  * results, and if another buffer currently is pinned for query results. If so,
1033  * the function prepares the state of @sw_context for switching pinned buffers
1034  * after successful submission of the current command batch.
1035  */
1036 static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
1037                                        struct vmw_buffer_object *new_query_bo,
1038                                        struct vmw_sw_context *sw_context)
1039 {
1040         struct vmw_res_cache_entry *ctx_entry =
1041                 &sw_context->res_cache[vmw_res_context];
1042         int ret;
1043
1044         BUG_ON(!ctx_entry->valid);
1045         sw_context->last_query_ctx = ctx_entry->res;
1046
1047         if (unlikely(new_query_bo != sw_context->cur_query_bo)) {
1048
1049                 if (unlikely(new_query_bo->base.resource->num_pages > 4)) {
1050                         VMW_DEBUG_USER("Query buffer too large.\n");
1051                         return -EINVAL;
1052                 }
1053
1054                 if (unlikely(sw_context->cur_query_bo != NULL)) {
1055                         sw_context->needs_post_query_barrier = true;
1056                         ret = vmw_validation_add_bo(sw_context->ctx,
1057                                                     sw_context->cur_query_bo,
1058                                                     dev_priv->has_mob, false);
1059                         if (unlikely(ret != 0))
1060                                 return ret;
1061                 }
1062                 sw_context->cur_query_bo = new_query_bo;
1063
1064                 ret = vmw_validation_add_bo(sw_context->ctx,
1065                                             dev_priv->dummy_query_bo,
1066                                             dev_priv->has_mob, false);
1067                 if (unlikely(ret != 0))
1068                         return ret;
1069         }
1070
1071         return 0;
1072 }
1073
1074 /**
1075  * vmw_query_bo_switch_commit - Finalize switching pinned query buffer
1076  *
1077  * @dev_priv: The device private structure.
1078  * @sw_context: The software context used for this command submission batch.
1079  *
1080  * This function will check if we're switching query buffers, and will then,
1081  * issue a dummy occlusion query wait used as a query barrier. When the fence
1082  * object following that query wait has signaled, we are sure that all preceding
1083  * queries have finished, and the old query buffer can be unpinned. However,
1084  * since both the new query buffer and the old one are fenced with that fence,
1085  * we can do an asynchronus unpin now, and be sure that the old query buffer
1086  * won't be moved until the fence has signaled.
1087  *
1088  * As mentioned above, both the new - and old query buffers need to be fenced
1089  * using a sequence emitted *after* calling this function.
1090  */
1091 static void vmw_query_bo_switch_commit(struct vmw_private *dev_priv,
1092                                      struct vmw_sw_context *sw_context)
1093 {
1094         /*
1095          * The validate list should still hold references to all
1096          * contexts here.
1097          */
1098         if (sw_context->needs_post_query_barrier) {
1099                 struct vmw_res_cache_entry *ctx_entry =
1100                         &sw_context->res_cache[vmw_res_context];
1101                 struct vmw_resource *ctx;
1102                 int ret;
1103
1104                 BUG_ON(!ctx_entry->valid);
1105                 ctx = ctx_entry->res;
1106
1107                 ret = vmw_cmd_emit_dummy_query(dev_priv, ctx->id);
1108
1109                 if (unlikely(ret != 0))
1110                         VMW_DEBUG_USER("Out of fifo space for dummy query.\n");
1111         }
1112
1113         if (dev_priv->pinned_bo != sw_context->cur_query_bo) {
1114                 if (dev_priv->pinned_bo) {
1115                         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
1116                         vmw_bo_unreference(&dev_priv->pinned_bo);
1117                 }
1118
1119                 if (!sw_context->needs_post_query_barrier) {
1120                         vmw_bo_pin_reserved(sw_context->cur_query_bo, true);
1121
1122                         /*
1123                          * We pin also the dummy_query_bo buffer so that we
1124                          * don't need to validate it when emitting dummy queries
1125                          * in context destroy paths.
1126                          */
1127                         if (!dev_priv->dummy_query_bo_pinned) {
1128                                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo,
1129                                                     true);
1130                                 dev_priv->dummy_query_bo_pinned = true;
1131                         }
1132
1133                         BUG_ON(sw_context->last_query_ctx == NULL);
1134                         dev_priv->query_cid = sw_context->last_query_ctx->id;
1135                         dev_priv->query_cid_valid = true;
1136                         dev_priv->pinned_bo =
1137                                 vmw_bo_reference(sw_context->cur_query_bo);
1138                 }
1139         }
1140 }
1141
1142 /**
1143  * vmw_translate_mob_ptr - Prepare to translate a user-space buffer handle
1144  * to a MOB id.
1145  *
1146  * @dev_priv: Pointer to a device private structure.
1147  * @sw_context: The software context used for this command batch validation.
1148  * @id: Pointer to the user-space handle to be translated.
1149  * @vmw_bo_p: Points to a location that, on successful return will carry a
1150  * non-reference-counted pointer to the buffer object identified by the
1151  * user-space handle in @id.
1152  *
1153  * This function saves information needed to translate a user-space buffer
1154  * handle to a MOB id. The translation does not take place immediately, but
1155  * during a call to vmw_apply_relocations().
1156  *
1157  * This function builds a relocation list and a list of buffers to validate. The
1158  * former needs to be freed using either vmw_apply_relocations() or
1159  * vmw_free_relocations(). The latter needs to be freed using
1160  * vmw_clear_validations.
1161  */
1162 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
1163                                  struct vmw_sw_context *sw_context,
1164                                  SVGAMobId *id,
1165                                  struct vmw_buffer_object **vmw_bo_p)
1166 {
1167         struct vmw_buffer_object *vmw_bo;
1168         uint32_t handle = *id;
1169         struct vmw_relocation *reloc;
1170         int ret;
1171
1172         vmw_validation_preload_bo(sw_context->ctx);
1173         vmw_bo = vmw_user_bo_noref_lookup(sw_context->fp->tfile, handle);
1174         if (IS_ERR(vmw_bo)) {
1175                 VMW_DEBUG_USER("Could not find or use MOB buffer.\n");
1176                 return PTR_ERR(vmw_bo);
1177         }
1178
1179         ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, true, false);
1180         vmw_user_bo_noref_release();
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->fp->tfile, handle);
1229         if (IS_ERR(vmw_bo)) {
1230                 VMW_DEBUG_USER("Could not find or use GMR region.\n");
1231                 return PTR_ERR(vmw_bo);
1232         }
1233
1234         ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, false, false);
1235         vmw_user_bo_noref_release();
1236         if (unlikely(ret != 0))
1237                 return ret;
1238
1239         reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
1240         if (!reloc)
1241                 return -ENOMEM;
1242
1243         reloc->location = ptr;
1244         reloc->vbo = vmw_bo;
1245         *vmw_bo_p = vmw_bo;
1246         list_add_tail(&reloc->head, &sw_context->bo_relocations);
1247
1248         return 0;
1249 }
1250
1251 /**
1252  * vmw_cmd_dx_define_query - validate SVGA_3D_CMD_DX_DEFINE_QUERY command.
1253  *
1254  * @dev_priv: Pointer to a device private struct.
1255  * @sw_context: The software context used for this command submission.
1256  * @header: Pointer to the command header in the command stream.
1257  *
1258  * This function adds the new query into the query COTABLE
1259  */
1260 static int vmw_cmd_dx_define_query(struct vmw_private *dev_priv,
1261                                    struct vmw_sw_context *sw_context,
1262                                    SVGA3dCmdHeader *header)
1263 {
1264         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineQuery);
1265         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
1266         struct vmw_resource *cotable_res;
1267         int ret;
1268
1269         if (!ctx_node)
1270                 return -EINVAL;
1271
1272         cmd = container_of(header, typeof(*cmd), header);
1273
1274         if (cmd->body.type <  SVGA3D_QUERYTYPE_MIN ||
1275             cmd->body.type >= SVGA3D_QUERYTYPE_MAX)
1276                 return -EINVAL;
1277
1278         cotable_res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXQUERY);
1279         ret = vmw_cotable_notify(cotable_res, cmd->body.queryId);
1280
1281         return ret;
1282 }
1283
1284 /**
1285  * vmw_cmd_dx_bind_query - validate SVGA_3D_CMD_DX_BIND_QUERY command.
1286  *
1287  * @dev_priv: Pointer to a device private struct.
1288  * @sw_context: The software context used for this command submission.
1289  * @header: Pointer to the command header in the command stream.
1290  *
1291  * The query bind operation will eventually associate the query ID with its
1292  * backing MOB.  In this function, we take the user mode MOB ID and use
1293  * vmw_translate_mob_ptr() to translate it to its kernel mode equivalent.
1294  */
1295 static int vmw_cmd_dx_bind_query(struct vmw_private *dev_priv,
1296                                  struct vmw_sw_context *sw_context,
1297                                  SVGA3dCmdHeader *header)
1298 {
1299         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindQuery);
1300         struct vmw_buffer_object *vmw_bo;
1301         int ret;
1302
1303         cmd = container_of(header, typeof(*cmd), header);
1304
1305         /*
1306          * Look up the buffer pointed to by q.mobid, put it on the relocation
1307          * list so its kernel mode MOB ID can be filled in later
1308          */
1309         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1310                                     &vmw_bo);
1311
1312         if (ret != 0)
1313                 return ret;
1314
1315         sw_context->dx_query_mob = vmw_bo;
1316         sw_context->dx_query_ctx = sw_context->dx_ctx_node->ctx;
1317         return 0;
1318 }
1319
1320 /**
1321  * vmw_cmd_begin_gb_query - validate SVGA_3D_CMD_BEGIN_GB_QUERY command.
1322  *
1323  * @dev_priv: Pointer to a device private struct.
1324  * @sw_context: The software context used for this command submission.
1325  * @header: Pointer to the command header in the command stream.
1326  */
1327 static int vmw_cmd_begin_gb_query(struct vmw_private *dev_priv,
1328                                   struct vmw_sw_context *sw_context,
1329                                   SVGA3dCmdHeader *header)
1330 {
1331         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginGBQuery) =
1332                 container_of(header, typeof(*cmd), header);
1333
1334         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1335                                  VMW_RES_DIRTY_SET, user_context_converter,
1336                                  &cmd->body.cid, NULL);
1337 }
1338
1339 /**
1340  * vmw_cmd_begin_query - validate SVGA_3D_CMD_BEGIN_QUERY command.
1341  *
1342  * @dev_priv: Pointer to a device private struct.
1343  * @sw_context: The software context used for this command submission.
1344  * @header: Pointer to the command header in the command stream.
1345  */
1346 static int vmw_cmd_begin_query(struct vmw_private *dev_priv,
1347                                struct vmw_sw_context *sw_context,
1348                                SVGA3dCmdHeader *header)
1349 {
1350         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginQuery) =
1351                 container_of(header, typeof(*cmd), header);
1352
1353         if (unlikely(dev_priv->has_mob)) {
1354                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdBeginGBQuery);
1355
1356                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1357
1358                 gb_cmd.header.id = SVGA_3D_CMD_BEGIN_GB_QUERY;
1359                 gb_cmd.header.size = cmd->header.size;
1360                 gb_cmd.body.cid = cmd->body.cid;
1361                 gb_cmd.body.type = cmd->body.type;
1362
1363                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1364                 return vmw_cmd_begin_gb_query(dev_priv, sw_context, header);
1365         }
1366
1367         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1368                                  VMW_RES_DIRTY_SET, user_context_converter,
1369                                  &cmd->body.cid, NULL);
1370 }
1371
1372 /**
1373  * vmw_cmd_end_gb_query - validate SVGA_3D_CMD_END_GB_QUERY command.
1374  *
1375  * @dev_priv: Pointer to a device private struct.
1376  * @sw_context: The software context used for this command submission.
1377  * @header: Pointer to the command header in the command stream.
1378  */
1379 static int vmw_cmd_end_gb_query(struct vmw_private *dev_priv,
1380                                 struct vmw_sw_context *sw_context,
1381                                 SVGA3dCmdHeader *header)
1382 {
1383         struct vmw_buffer_object *vmw_bo;
1384         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndGBQuery);
1385         int ret;
1386
1387         cmd = container_of(header, typeof(*cmd), header);
1388         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1389         if (unlikely(ret != 0))
1390                 return ret;
1391
1392         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1393                                     &vmw_bo);
1394         if (unlikely(ret != 0))
1395                 return ret;
1396
1397         ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
1398
1399         return ret;
1400 }
1401
1402 /**
1403  * vmw_cmd_end_query - validate SVGA_3D_CMD_END_QUERY command.
1404  *
1405  * @dev_priv: Pointer to a device private struct.
1406  * @sw_context: The software context used for this command submission.
1407  * @header: Pointer to the command header in the command stream.
1408  */
1409 static int vmw_cmd_end_query(struct vmw_private *dev_priv,
1410                              struct vmw_sw_context *sw_context,
1411                              SVGA3dCmdHeader *header)
1412 {
1413         struct vmw_buffer_object *vmw_bo;
1414         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndQuery);
1415         int ret;
1416
1417         cmd = container_of(header, typeof(*cmd), header);
1418         if (dev_priv->has_mob) {
1419                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdEndGBQuery);
1420
1421                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1422
1423                 gb_cmd.header.id = SVGA_3D_CMD_END_GB_QUERY;
1424                 gb_cmd.header.size = cmd->header.size;
1425                 gb_cmd.body.cid = cmd->body.cid;
1426                 gb_cmd.body.type = cmd->body.type;
1427                 gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
1428                 gb_cmd.body.offset = cmd->body.guestResult.offset;
1429
1430                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1431                 return vmw_cmd_end_gb_query(dev_priv, sw_context, header);
1432         }
1433
1434         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1435         if (unlikely(ret != 0))
1436                 return ret;
1437
1438         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1439                                       &cmd->body.guestResult, &vmw_bo);
1440         if (unlikely(ret != 0))
1441                 return ret;
1442
1443         ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
1444
1445         return ret;
1446 }
1447
1448 /**
1449  * vmw_cmd_wait_gb_query - validate SVGA_3D_CMD_WAIT_GB_QUERY command.
1450  *
1451  * @dev_priv: Pointer to a device private struct.
1452  * @sw_context: The software context used for this command submission.
1453  * @header: Pointer to the command header in the command stream.
1454  */
1455 static int vmw_cmd_wait_gb_query(struct vmw_private *dev_priv,
1456                                  struct vmw_sw_context *sw_context,
1457                                  SVGA3dCmdHeader *header)
1458 {
1459         struct vmw_buffer_object *vmw_bo;
1460         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForGBQuery);
1461         int ret;
1462
1463         cmd = container_of(header, typeof(*cmd), header);
1464         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1465         if (unlikely(ret != 0))
1466                 return ret;
1467
1468         ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
1469                                     &vmw_bo);
1470         if (unlikely(ret != 0))
1471                 return ret;
1472
1473         return 0;
1474 }
1475
1476 /**
1477  * vmw_cmd_wait_query - validate SVGA_3D_CMD_WAIT_QUERY command.
1478  *
1479  * @dev_priv: Pointer to a device private struct.
1480  * @sw_context: The software context used for this command submission.
1481  * @header: Pointer to the command header in the command stream.
1482  */
1483 static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
1484                               struct vmw_sw_context *sw_context,
1485                               SVGA3dCmdHeader *header)
1486 {
1487         struct vmw_buffer_object *vmw_bo;
1488         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForQuery);
1489         int ret;
1490
1491         cmd = container_of(header, typeof(*cmd), header);
1492         if (dev_priv->has_mob) {
1493                 VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdWaitForGBQuery);
1494
1495                 BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
1496
1497                 gb_cmd.header.id = SVGA_3D_CMD_WAIT_FOR_GB_QUERY;
1498                 gb_cmd.header.size = cmd->header.size;
1499                 gb_cmd.body.cid = cmd->body.cid;
1500                 gb_cmd.body.type = cmd->body.type;
1501                 gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
1502                 gb_cmd.body.offset = cmd->body.guestResult.offset;
1503
1504                 memcpy(cmd, &gb_cmd, sizeof(*cmd));
1505                 return vmw_cmd_wait_gb_query(dev_priv, sw_context, header);
1506         }
1507
1508         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1509         if (unlikely(ret != 0))
1510                 return ret;
1511
1512         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1513                                       &cmd->body.guestResult, &vmw_bo);
1514         if (unlikely(ret != 0))
1515                 return ret;
1516
1517         return 0;
1518 }
1519
1520 static int vmw_cmd_dma(struct vmw_private *dev_priv,
1521                        struct vmw_sw_context *sw_context,
1522                        SVGA3dCmdHeader *header)
1523 {
1524         struct vmw_buffer_object *vmw_bo = NULL;
1525         struct vmw_surface *srf = NULL;
1526         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceDMA);
1527         int ret;
1528         SVGA3dCmdSurfaceDMASuffix *suffix;
1529         uint32_t bo_size;
1530         bool dirty;
1531
1532         cmd = container_of(header, typeof(*cmd), header);
1533         suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->body +
1534                                                header->size - sizeof(*suffix));
1535
1536         /* Make sure device and verifier stays in sync. */
1537         if (unlikely(suffix->suffixSize != sizeof(*suffix))) {
1538                 VMW_DEBUG_USER("Invalid DMA suffix size.\n");
1539                 return -EINVAL;
1540         }
1541
1542         ret = vmw_translate_guest_ptr(dev_priv, sw_context,
1543                                       &cmd->body.guest.ptr, &vmw_bo);
1544         if (unlikely(ret != 0))
1545                 return ret;
1546
1547         /* Make sure DMA doesn't cross BO boundaries. */
1548         bo_size = vmw_bo->base.base.size;
1549         if (unlikely(cmd->body.guest.ptr.offset > bo_size)) {
1550                 VMW_DEBUG_USER("Invalid DMA offset.\n");
1551                 return -EINVAL;
1552         }
1553
1554         bo_size -= cmd->body.guest.ptr.offset;
1555         if (unlikely(suffix->maximumOffset > bo_size))
1556                 suffix->maximumOffset = bo_size;
1557
1558         dirty = (cmd->body.transfer == SVGA3D_WRITE_HOST_VRAM) ?
1559                 VMW_RES_DIRTY_SET : 0;
1560         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1561                                 dirty, user_surface_converter,
1562                                 &cmd->body.host.sid, NULL);
1563         if (unlikely(ret != 0)) {
1564                 if (unlikely(ret != -ERESTARTSYS))
1565                         VMW_DEBUG_USER("could not find surface for DMA.\n");
1566                 return ret;
1567         }
1568
1569         srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res);
1570
1571         vmw_kms_cursor_snoop(srf, sw_context->fp->tfile, &vmw_bo->base, header);
1572
1573         return 0;
1574 }
1575
1576 static int vmw_cmd_draw(struct vmw_private *dev_priv,
1577                         struct vmw_sw_context *sw_context,
1578                         SVGA3dCmdHeader *header)
1579 {
1580         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDrawPrimitives);
1581         SVGA3dVertexDecl *decl = (SVGA3dVertexDecl *)(
1582                 (unsigned long)header + sizeof(*cmd));
1583         SVGA3dPrimitiveRange *range;
1584         uint32_t i;
1585         uint32_t maxnum;
1586         int ret;
1587
1588         ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
1589         if (unlikely(ret != 0))
1590                 return ret;
1591
1592         cmd = container_of(header, typeof(*cmd), header);
1593         maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);
1594
1595         if (unlikely(cmd->body.numVertexDecls > maxnum)) {
1596                 VMW_DEBUG_USER("Illegal number of vertex declarations.\n");
1597                 return -EINVAL;
1598         }
1599
1600         for (i = 0; i < cmd->body.numVertexDecls; ++i, ++decl) {
1601                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1602                                         VMW_RES_DIRTY_NONE,
1603                                         user_surface_converter,
1604                                         &decl->array.surfaceId, NULL);
1605                 if (unlikely(ret != 0))
1606                         return ret;
1607         }
1608
1609         maxnum = (header->size - sizeof(cmd->body) -
1610                   cmd->body.numVertexDecls * sizeof(*decl)) / sizeof(*range);
1611         if (unlikely(cmd->body.numRanges > maxnum)) {
1612                 VMW_DEBUG_USER("Illegal number of index ranges.\n");
1613                 return -EINVAL;
1614         }
1615
1616         range = (SVGA3dPrimitiveRange *) decl;
1617         for (i = 0; i < cmd->body.numRanges; ++i, ++range) {
1618                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1619                                         VMW_RES_DIRTY_NONE,
1620                                         user_surface_converter,
1621                                         &range->indexArray.surfaceId, NULL);
1622                 if (unlikely(ret != 0))
1623                         return ret;
1624         }
1625         return 0;
1626 }
1627
1628 static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
1629                              struct vmw_sw_context *sw_context,
1630                              SVGA3dCmdHeader *header)
1631 {
1632         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetTextureState);
1633         SVGA3dTextureState *last_state = (SVGA3dTextureState *)
1634           ((unsigned long) header + header->size + sizeof(header));
1635         SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
1636                 ((unsigned long) header + sizeof(*cmd));
1637         struct vmw_resource *ctx;
1638         struct vmw_resource *res;
1639         int ret;
1640
1641         cmd = container_of(header, typeof(*cmd), header);
1642
1643         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1644                                 VMW_RES_DIRTY_SET, user_context_converter,
1645                                 &cmd->body.cid, &ctx);
1646         if (unlikely(ret != 0))
1647                 return ret;
1648
1649         for (; cur_state < last_state; ++cur_state) {
1650                 if (likely(cur_state->name != SVGA3D_TS_BIND_TEXTURE))
1651                         continue;
1652
1653                 if (cur_state->stage >= SVGA3D_NUM_TEXTURE_UNITS) {
1654                         VMW_DEBUG_USER("Illegal texture/sampler unit %u.\n",
1655                                        (unsigned int) cur_state->stage);
1656                         return -EINVAL;
1657                 }
1658
1659                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1660                                         VMW_RES_DIRTY_NONE,
1661                                         user_surface_converter,
1662                                         &cur_state->value, &res);
1663                 if (unlikely(ret != 0))
1664                         return ret;
1665
1666                 if (dev_priv->has_mob) {
1667                         struct vmw_ctx_bindinfo_tex binding;
1668                         struct vmw_ctx_validation_info *node;
1669
1670                         node = vmw_execbuf_info_from_res(sw_context, ctx);
1671                         if (!node)
1672                                 return -EINVAL;
1673
1674                         binding.bi.ctx = ctx;
1675                         binding.bi.res = res;
1676                         binding.bi.bt = vmw_ctx_binding_tex;
1677                         binding.texture_stage = cur_state->stage;
1678                         vmw_binding_add(node->staged, &binding.bi, 0,
1679                                         binding.texture_stage);
1680                 }
1681         }
1682
1683         return 0;
1684 }
1685
1686 static int vmw_cmd_check_define_gmrfb(struct vmw_private *dev_priv,
1687                                       struct vmw_sw_context *sw_context,
1688                                       void *buf)
1689 {
1690         struct vmw_buffer_object *vmw_bo;
1691
1692         struct {
1693                 uint32_t header;
1694                 SVGAFifoCmdDefineGMRFB body;
1695         } *cmd = buf;
1696
1697         return vmw_translate_guest_ptr(dev_priv, sw_context, &cmd->body.ptr,
1698                                        &vmw_bo);
1699 }
1700
1701 /**
1702  * vmw_cmd_res_switch_backup - Utility function to handle backup buffer
1703  * switching
1704  *
1705  * @dev_priv: Pointer to a device private struct.
1706  * @sw_context: The software context being used for this batch.
1707  * @res: Pointer to the resource.
1708  * @buf_id: Pointer to the user-space backup buffer handle in the command
1709  * stream.
1710  * @backup_offset: Offset of backup into MOB.
1711  *
1712  * This function prepares for registering a switch of backup buffers in the
1713  * resource metadata just prior to unreserving. It's basically a wrapper around
1714  * vmw_cmd_res_switch_backup with a different interface.
1715  */
1716 static int vmw_cmd_res_switch_backup(struct vmw_private *dev_priv,
1717                                      struct vmw_sw_context *sw_context,
1718                                      struct vmw_resource *res, uint32_t *buf_id,
1719                                      unsigned long backup_offset)
1720 {
1721         struct vmw_buffer_object *vbo;
1722         void *info;
1723         int ret;
1724
1725         info = vmw_execbuf_info_from_res(sw_context, res);
1726         if (!info)
1727                 return -EINVAL;
1728
1729         ret = vmw_translate_mob_ptr(dev_priv, sw_context, buf_id, &vbo);
1730         if (ret)
1731                 return ret;
1732
1733         vmw_validation_res_switch_backup(sw_context->ctx, info, vbo,
1734                                          backup_offset);
1735         return 0;
1736 }
1737
1738 /**
1739  * vmw_cmd_switch_backup - Utility function to handle backup buffer switching
1740  *
1741  * @dev_priv: Pointer to a device private struct.
1742  * @sw_context: The software context being used for this batch.
1743  * @res_type: The resource type.
1744  * @converter: Information about user-space binding for this resource type.
1745  * @res_id: Pointer to the user-space resource handle in the command stream.
1746  * @buf_id: Pointer to the user-space backup buffer handle in the command
1747  * stream.
1748  * @backup_offset: Offset of backup into MOB.
1749  *
1750  * This function prepares for registering a switch of backup buffers in the
1751  * resource metadata just prior to unreserving. It's basically a wrapper around
1752  * vmw_cmd_res_switch_backup with a different interface.
1753  */
1754 static int vmw_cmd_switch_backup(struct vmw_private *dev_priv,
1755                                  struct vmw_sw_context *sw_context,
1756                                  enum vmw_res_type res_type,
1757                                  const struct vmw_user_resource_conv
1758                                  *converter, uint32_t *res_id, uint32_t *buf_id,
1759                                  unsigned long backup_offset)
1760 {
1761         struct vmw_resource *res;
1762         int ret;
1763
1764         ret = vmw_cmd_res_check(dev_priv, sw_context, res_type,
1765                                 VMW_RES_DIRTY_NONE, converter, res_id, &res);
1766         if (ret)
1767                 return ret;
1768
1769         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res, buf_id,
1770                                          backup_offset);
1771 }
1772
1773 /**
1774  * vmw_cmd_bind_gb_surface - Validate SVGA_3D_CMD_BIND_GB_SURFACE command
1775  *
1776  * @dev_priv: Pointer to a device private struct.
1777  * @sw_context: The software context being used for this batch.
1778  * @header: Pointer to the command header in the command stream.
1779  */
1780 static int vmw_cmd_bind_gb_surface(struct vmw_private *dev_priv,
1781                                    struct vmw_sw_context *sw_context,
1782                                    SVGA3dCmdHeader *header)
1783 {
1784         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBSurface) =
1785                 container_of(header, typeof(*cmd), header);
1786
1787         return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_surface,
1788                                      user_surface_converter, &cmd->body.sid,
1789                                      &cmd->body.mobid, 0);
1790 }
1791
1792 /**
1793  * vmw_cmd_update_gb_image - Validate SVGA_3D_CMD_UPDATE_GB_IMAGE command
1794  *
1795  * @dev_priv: Pointer to a device private struct.
1796  * @sw_context: The software context being used for this batch.
1797  * @header: Pointer to the command header in the command stream.
1798  */
1799 static int vmw_cmd_update_gb_image(struct vmw_private *dev_priv,
1800                                    struct vmw_sw_context *sw_context,
1801                                    SVGA3dCmdHeader *header)
1802 {
1803         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBImage) =
1804                 container_of(header, typeof(*cmd), header);
1805
1806         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1807                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1808                                  &cmd->body.image.sid, NULL);
1809 }
1810
1811 /**
1812  * vmw_cmd_update_gb_surface - Validate SVGA_3D_CMD_UPDATE_GB_SURFACE command
1813  *
1814  * @dev_priv: Pointer to a device private struct.
1815  * @sw_context: The software context being used for this batch.
1816  * @header: Pointer to the command header in the command stream.
1817  */
1818 static int vmw_cmd_update_gb_surface(struct vmw_private *dev_priv,
1819                                      struct vmw_sw_context *sw_context,
1820                                      SVGA3dCmdHeader *header)
1821 {
1822         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBSurface) =
1823                 container_of(header, typeof(*cmd), header);
1824
1825         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1826                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1827                                  &cmd->body.sid, NULL);
1828 }
1829
1830 /**
1831  * vmw_cmd_readback_gb_image - Validate SVGA_3D_CMD_READBACK_GB_IMAGE command
1832  *
1833  * @dev_priv: Pointer to a device private struct.
1834  * @sw_context: The software context being used for this batch.
1835  * @header: Pointer to the command header in the command stream.
1836  */
1837 static int vmw_cmd_readback_gb_image(struct vmw_private *dev_priv,
1838                                      struct vmw_sw_context *sw_context,
1839                                      SVGA3dCmdHeader *header)
1840 {
1841         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBImage) =
1842                 container_of(header, typeof(*cmd), header);
1843
1844         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1845                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1846                                  &cmd->body.image.sid, NULL);
1847 }
1848
1849 /**
1850  * vmw_cmd_readback_gb_surface - Validate SVGA_3D_CMD_READBACK_GB_SURFACE
1851  * command
1852  *
1853  * @dev_priv: Pointer to a device private struct.
1854  * @sw_context: The software context being used for this batch.
1855  * @header: Pointer to the command header in the command stream.
1856  */
1857 static int vmw_cmd_readback_gb_surface(struct vmw_private *dev_priv,
1858                                        struct vmw_sw_context *sw_context,
1859                                        SVGA3dCmdHeader *header)
1860 {
1861         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBSurface) =
1862                 container_of(header, typeof(*cmd), header);
1863
1864         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1865                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1866                                  &cmd->body.sid, NULL);
1867 }
1868
1869 /**
1870  * vmw_cmd_invalidate_gb_image - Validate SVGA_3D_CMD_INVALIDATE_GB_IMAGE
1871  * command
1872  *
1873  * @dev_priv: Pointer to a device private struct.
1874  * @sw_context: The software context being used for this batch.
1875  * @header: Pointer to the command header in the command stream.
1876  */
1877 static int vmw_cmd_invalidate_gb_image(struct vmw_private *dev_priv,
1878                                        struct vmw_sw_context *sw_context,
1879                                        SVGA3dCmdHeader *header)
1880 {
1881         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBImage) =
1882                 container_of(header, typeof(*cmd), header);
1883
1884         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1885                                  VMW_RES_DIRTY_NONE, user_surface_converter,
1886                                  &cmd->body.image.sid, NULL);
1887 }
1888
1889 /**
1890  * vmw_cmd_invalidate_gb_surface - Validate SVGA_3D_CMD_INVALIDATE_GB_SURFACE
1891  * command
1892  *
1893  * @dev_priv: Pointer to a device private struct.
1894  * @sw_context: The software context being used for this batch.
1895  * @header: Pointer to the command header in the command stream.
1896  */
1897 static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
1898                                          struct vmw_sw_context *sw_context,
1899                                          SVGA3dCmdHeader *header)
1900 {
1901         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBSurface) =
1902                 container_of(header, typeof(*cmd), header);
1903
1904         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
1905                                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
1906                                  &cmd->body.sid, NULL);
1907 }
1908
1909 /**
1910  * vmw_cmd_shader_define - Validate SVGA_3D_CMD_SHADER_DEFINE command
1911  *
1912  * @dev_priv: Pointer to a device private struct.
1913  * @sw_context: The software context being used for this batch.
1914  * @header: Pointer to the command header in the command stream.
1915  */
1916 static int vmw_cmd_shader_define(struct vmw_private *dev_priv,
1917                                  struct vmw_sw_context *sw_context,
1918                                  SVGA3dCmdHeader *header)
1919 {
1920         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDefineShader);
1921         int ret;
1922         size_t size;
1923         struct vmw_resource *ctx;
1924
1925         cmd = container_of(header, typeof(*cmd), header);
1926
1927         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1928                                 VMW_RES_DIRTY_SET, user_context_converter,
1929                                 &cmd->body.cid, &ctx);
1930         if (unlikely(ret != 0))
1931                 return ret;
1932
1933         if (unlikely(!dev_priv->has_mob))
1934                 return 0;
1935
1936         size = cmd->header.size - sizeof(cmd->body);
1937         ret = vmw_compat_shader_add(dev_priv, vmw_context_res_man(ctx),
1938                                     cmd->body.shid, cmd + 1, cmd->body.type,
1939                                     size, &sw_context->staged_cmd_res);
1940         if (unlikely(ret != 0))
1941                 return ret;
1942
1943         return vmw_resource_relocation_add(sw_context, NULL,
1944                                            vmw_ptr_diff(sw_context->buf_start,
1945                                                         &cmd->header.id),
1946                                            vmw_res_rel_nop);
1947 }
1948
1949 /**
1950  * vmw_cmd_shader_destroy - Validate SVGA_3D_CMD_SHADER_DESTROY command
1951  *
1952  * @dev_priv: Pointer to a device private struct.
1953  * @sw_context: The software context being used for this batch.
1954  * @header: Pointer to the command header in the command stream.
1955  */
1956 static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv,
1957                                   struct vmw_sw_context *sw_context,
1958                                   SVGA3dCmdHeader *header)
1959 {
1960         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDestroyShader);
1961         int ret;
1962         struct vmw_resource *ctx;
1963
1964         cmd = container_of(header, typeof(*cmd), header);
1965
1966         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
1967                                 VMW_RES_DIRTY_SET, user_context_converter,
1968                                 &cmd->body.cid, &ctx);
1969         if (unlikely(ret != 0))
1970                 return ret;
1971
1972         if (unlikely(!dev_priv->has_mob))
1973                 return 0;
1974
1975         ret = vmw_shader_remove(vmw_context_res_man(ctx), cmd->body.shid,
1976                                 cmd->body.type, &sw_context->staged_cmd_res);
1977         if (unlikely(ret != 0))
1978                 return ret;
1979
1980         return vmw_resource_relocation_add(sw_context, NULL,
1981                                            vmw_ptr_diff(sw_context->buf_start,
1982                                                         &cmd->header.id),
1983                                            vmw_res_rel_nop);
1984 }
1985
1986 /**
1987  * vmw_cmd_set_shader - Validate SVGA_3D_CMD_SET_SHADER command
1988  *
1989  * @dev_priv: Pointer to a device private struct.
1990  * @sw_context: The software context being used for this batch.
1991  * @header: Pointer to the command header in the command stream.
1992  */
1993 static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
1994                               struct vmw_sw_context *sw_context,
1995                               SVGA3dCmdHeader *header)
1996 {
1997         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShader);
1998         struct vmw_ctx_bindinfo_shader binding;
1999         struct vmw_resource *ctx, *res = NULL;
2000         struct vmw_ctx_validation_info *ctx_info;
2001         int ret;
2002
2003         cmd = container_of(header, typeof(*cmd), header);
2004
2005         if (cmd->body.type >= SVGA3D_SHADERTYPE_PREDX_MAX) {
2006                 VMW_DEBUG_USER("Illegal shader type %u.\n",
2007                                (unsigned int) cmd->body.type);
2008                 return -EINVAL;
2009         }
2010
2011         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2012                                 VMW_RES_DIRTY_SET, user_context_converter,
2013                                 &cmd->body.cid, &ctx);
2014         if (unlikely(ret != 0))
2015                 return ret;
2016
2017         if (!dev_priv->has_mob)
2018                 return 0;
2019
2020         if (cmd->body.shid != SVGA3D_INVALID_ID) {
2021                 /*
2022                  * This is the compat shader path - Per device guest-backed
2023                  * shaders, but user-space thinks it's per context host-
2024                  * backed shaders.
2025                  */
2026                 res = vmw_shader_lookup(vmw_context_res_man(ctx),
2027                                         cmd->body.shid, cmd->body.type);
2028                 if (!IS_ERR(res)) {
2029                         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2030                                                             VMW_RES_DIRTY_NONE);
2031                         if (unlikely(ret != 0))
2032                                 return ret;
2033
2034                         ret = vmw_resource_relocation_add
2035                                 (sw_context, res,
2036                                  vmw_ptr_diff(sw_context->buf_start,
2037                                               &cmd->body.shid),
2038                                  vmw_res_rel_normal);
2039                         if (unlikely(ret != 0))
2040                                 return ret;
2041                 }
2042         }
2043
2044         if (IS_ERR_OR_NULL(res)) {
2045                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
2046                                         VMW_RES_DIRTY_NONE,
2047                                         user_shader_converter, &cmd->body.shid,
2048                                         &res);
2049                 if (unlikely(ret != 0))
2050                         return ret;
2051         }
2052
2053         ctx_info = vmw_execbuf_info_from_res(sw_context, ctx);
2054         if (!ctx_info)
2055                 return -EINVAL;
2056
2057         binding.bi.ctx = ctx;
2058         binding.bi.res = res;
2059         binding.bi.bt = vmw_ctx_binding_shader;
2060         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2061         vmw_binding_add(ctx_info->staged, &binding.bi, binding.shader_slot, 0);
2062
2063         return 0;
2064 }
2065
2066 /**
2067  * vmw_cmd_set_shader_const - Validate SVGA_3D_CMD_SET_SHADER_CONST command
2068  *
2069  * @dev_priv: Pointer to a device private struct.
2070  * @sw_context: The software context being used for this batch.
2071  * @header: Pointer to the command header in the command stream.
2072  */
2073 static int vmw_cmd_set_shader_const(struct vmw_private *dev_priv,
2074                                     struct vmw_sw_context *sw_context,
2075                                     SVGA3dCmdHeader *header)
2076 {
2077         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShaderConst);
2078         int ret;
2079
2080         cmd = container_of(header, typeof(*cmd), header);
2081
2082         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2083                                 VMW_RES_DIRTY_SET, user_context_converter,
2084                                 &cmd->body.cid, NULL);
2085         if (unlikely(ret != 0))
2086                 return ret;
2087
2088         if (dev_priv->has_mob)
2089                 header->id = SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE;
2090
2091         return 0;
2092 }
2093
2094 /**
2095  * vmw_cmd_bind_gb_shader - Validate SVGA_3D_CMD_BIND_GB_SHADER command
2096  *
2097  * @dev_priv: Pointer to a device private struct.
2098  * @sw_context: The software context being used for this batch.
2099  * @header: Pointer to the command header in the command stream.
2100  */
2101 static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv,
2102                                   struct vmw_sw_context *sw_context,
2103                                   SVGA3dCmdHeader *header)
2104 {
2105         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBShader) =
2106                 container_of(header, typeof(*cmd), header);
2107
2108         return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader,
2109                                      user_shader_converter, &cmd->body.shid,
2110                                      &cmd->body.mobid, cmd->body.offsetInBytes);
2111 }
2112
2113 /**
2114  * vmw_cmd_dx_set_single_constant_buffer - Validate
2115  * SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER command.
2116  *
2117  * @dev_priv: Pointer to a device private struct.
2118  * @sw_context: The software context being used for this batch.
2119  * @header: Pointer to the command header in the command stream.
2120  */
2121 static int
2122 vmw_cmd_dx_set_single_constant_buffer(struct vmw_private *dev_priv,
2123                                       struct vmw_sw_context *sw_context,
2124                                       SVGA3dCmdHeader *header)
2125 {
2126         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetSingleConstantBuffer);
2127         SVGA3dShaderType max_shader_num = has_sm5_context(dev_priv) ?
2128                 SVGA3D_NUM_SHADERTYPE : SVGA3D_NUM_SHADERTYPE_DX10;
2129
2130         struct vmw_resource *res = NULL;
2131         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2132         struct vmw_ctx_bindinfo_cb binding;
2133         int ret;
2134
2135         if (!ctx_node)
2136                 return -EINVAL;
2137
2138         cmd = container_of(header, typeof(*cmd), header);
2139         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2140                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2141                                 &cmd->body.sid, &res);
2142         if (unlikely(ret != 0))
2143                 return ret;
2144
2145         binding.bi.ctx = ctx_node->ctx;
2146         binding.bi.res = res;
2147         binding.bi.bt = vmw_ctx_binding_cb;
2148         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2149         binding.offset = cmd->body.offsetInBytes;
2150         binding.size = cmd->body.sizeInBytes;
2151         binding.slot = cmd->body.slot;
2152
2153         if (binding.shader_slot >= max_shader_num ||
2154             binding.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
2155                 VMW_DEBUG_USER("Illegal const buffer shader %u slot %u.\n",
2156                                (unsigned int) cmd->body.type,
2157                                (unsigned int) binding.slot);
2158                 return -EINVAL;
2159         }
2160
2161         vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot,
2162                         binding.slot);
2163
2164         return 0;
2165 }
2166
2167 /**
2168  * vmw_cmd_dx_set_shader_res - Validate SVGA_3D_CMD_DX_SET_SHADER_RESOURCES
2169  * command
2170  *
2171  * @dev_priv: Pointer to a device private struct.
2172  * @sw_context: The software context being used for this batch.
2173  * @header: Pointer to the command header in the command stream.
2174  */
2175 static int vmw_cmd_dx_set_shader_res(struct vmw_private *dev_priv,
2176                                      struct vmw_sw_context *sw_context,
2177                                      SVGA3dCmdHeader *header)
2178 {
2179         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShaderResources) =
2180                 container_of(header, typeof(*cmd), header);
2181         SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
2182                 SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
2183
2184         u32 num_sr_view = (cmd->header.size - sizeof(cmd->body)) /
2185                 sizeof(SVGA3dShaderResourceViewId);
2186
2187         if ((u64) cmd->body.startView + (u64) num_sr_view >
2188             (u64) SVGA3D_DX_MAX_SRVIEWS ||
2189             cmd->body.type >= max_allowed) {
2190                 VMW_DEBUG_USER("Invalid shader binding.\n");
2191                 return -EINVAL;
2192         }
2193
2194         return vmw_view_bindings_add(sw_context, vmw_view_sr,
2195                                      vmw_ctx_binding_sr,
2196                                      cmd->body.type - SVGA3D_SHADERTYPE_MIN,
2197                                      (void *) &cmd[1], num_sr_view,
2198                                      cmd->body.startView);
2199 }
2200
2201 /**
2202  * vmw_cmd_dx_set_shader - Validate SVGA_3D_CMD_DX_SET_SHADER command
2203  *
2204  * @dev_priv: Pointer to a device private struct.
2205  * @sw_context: The software context being used for this batch.
2206  * @header: Pointer to the command header in the command stream.
2207  */
2208 static int vmw_cmd_dx_set_shader(struct vmw_private *dev_priv,
2209                                  struct vmw_sw_context *sw_context,
2210                                  SVGA3dCmdHeader *header)
2211 {
2212         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShader);
2213         SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
2214                 SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
2215         struct vmw_resource *res = NULL;
2216         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2217         struct vmw_ctx_bindinfo_shader binding;
2218         int ret = 0;
2219
2220         if (!ctx_node)
2221                 return -EINVAL;
2222
2223         cmd = container_of(header, typeof(*cmd), header);
2224
2225         if (cmd->body.type >= max_allowed ||
2226             cmd->body.type < SVGA3D_SHADERTYPE_MIN) {
2227                 VMW_DEBUG_USER("Illegal shader type %u.\n",
2228                                (unsigned int) cmd->body.type);
2229                 return -EINVAL;
2230         }
2231
2232         if (cmd->body.shaderId != SVGA3D_INVALID_ID) {
2233                 res = vmw_shader_lookup(sw_context->man, cmd->body.shaderId, 0);
2234                 if (IS_ERR(res)) {
2235                         VMW_DEBUG_USER("Could not find shader for binding.\n");
2236                         return PTR_ERR(res);
2237                 }
2238
2239                 ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2240                                                     VMW_RES_DIRTY_NONE);
2241                 if (ret)
2242                         return ret;
2243         }
2244
2245         binding.bi.ctx = ctx_node->ctx;
2246         binding.bi.res = res;
2247         binding.bi.bt = vmw_ctx_binding_dx_shader;
2248         binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
2249
2250         vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot, 0);
2251
2252         return 0;
2253 }
2254
2255 /**
2256  * vmw_cmd_dx_set_vertex_buffers - Validates SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS
2257  * command
2258  *
2259  * @dev_priv: Pointer to a device private struct.
2260  * @sw_context: The software context being used for this batch.
2261  * @header: Pointer to the command header in the command stream.
2262  */
2263 static int vmw_cmd_dx_set_vertex_buffers(struct vmw_private *dev_priv,
2264                                          struct vmw_sw_context *sw_context,
2265                                          SVGA3dCmdHeader *header)
2266 {
2267         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2268         struct vmw_ctx_bindinfo_vb binding;
2269         struct vmw_resource *res;
2270         struct {
2271                 SVGA3dCmdHeader header;
2272                 SVGA3dCmdDXSetVertexBuffers body;
2273                 SVGA3dVertexBuffer buf[];
2274         } *cmd;
2275         int i, ret, num;
2276
2277         if (!ctx_node)
2278                 return -EINVAL;
2279
2280         cmd = container_of(header, typeof(*cmd), header);
2281         num = (cmd->header.size - sizeof(cmd->body)) /
2282                 sizeof(SVGA3dVertexBuffer);
2283         if ((u64)num + (u64)cmd->body.startBuffer >
2284             (u64)SVGA3D_DX_MAX_VERTEXBUFFERS) {
2285                 VMW_DEBUG_USER("Invalid number of vertex buffers.\n");
2286                 return -EINVAL;
2287         }
2288
2289         for (i = 0; i < num; i++) {
2290                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2291                                         VMW_RES_DIRTY_NONE,
2292                                         user_surface_converter,
2293                                         &cmd->buf[i].sid, &res);
2294                 if (unlikely(ret != 0))
2295                         return ret;
2296
2297                 binding.bi.ctx = ctx_node->ctx;
2298                 binding.bi.bt = vmw_ctx_binding_vb;
2299                 binding.bi.res = res;
2300                 binding.offset = cmd->buf[i].offset;
2301                 binding.stride = cmd->buf[i].stride;
2302                 binding.slot = i + cmd->body.startBuffer;
2303
2304                 vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
2305         }
2306
2307         return 0;
2308 }
2309
2310 /**
2311  * vmw_cmd_dx_set_index_buffer - Validate
2312  * SVGA_3D_CMD_DX_IA_SET_INDEX_BUFFER command.
2313  *
2314  * @dev_priv: Pointer to a device private struct.
2315  * @sw_context: The software context being used for this batch.
2316  * @header: Pointer to the command header in the command stream.
2317  */
2318 static int vmw_cmd_dx_set_index_buffer(struct vmw_private *dev_priv,
2319                                        struct vmw_sw_context *sw_context,
2320                                        SVGA3dCmdHeader *header)
2321 {
2322         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2323         struct vmw_ctx_bindinfo_ib binding;
2324         struct vmw_resource *res;
2325         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetIndexBuffer);
2326         int ret;
2327
2328         if (!ctx_node)
2329                 return -EINVAL;
2330
2331         cmd = container_of(header, typeof(*cmd), header);
2332         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2333                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2334                                 &cmd->body.sid, &res);
2335         if (unlikely(ret != 0))
2336                 return ret;
2337
2338         binding.bi.ctx = ctx_node->ctx;
2339         binding.bi.res = res;
2340         binding.bi.bt = vmw_ctx_binding_ib;
2341         binding.offset = cmd->body.offset;
2342         binding.format = cmd->body.format;
2343
2344         vmw_binding_add(ctx_node->staged, &binding.bi, 0, 0);
2345
2346         return 0;
2347 }
2348
2349 /**
2350  * vmw_cmd_dx_set_rendertargets - Validate SVGA_3D_CMD_DX_SET_RENDERTARGETS
2351  * command
2352  *
2353  * @dev_priv: Pointer to a device private struct.
2354  * @sw_context: The software context being used for this batch.
2355  * @header: Pointer to the command header in the command stream.
2356  */
2357 static int vmw_cmd_dx_set_rendertargets(struct vmw_private *dev_priv,
2358                                         struct vmw_sw_context *sw_context,
2359                                         SVGA3dCmdHeader *header)
2360 {
2361         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetRenderTargets) =
2362                 container_of(header, typeof(*cmd), header);
2363         u32 num_rt_view = (cmd->header.size - sizeof(cmd->body)) /
2364                 sizeof(SVGA3dRenderTargetViewId);
2365         int ret;
2366
2367         if (num_rt_view > SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS) {
2368                 VMW_DEBUG_USER("Invalid DX Rendertarget binding.\n");
2369                 return -EINVAL;
2370         }
2371
2372         ret = vmw_view_bindings_add(sw_context, vmw_view_ds, vmw_ctx_binding_ds,
2373                                     0, &cmd->body.depthStencilViewId, 1, 0);
2374         if (ret)
2375                 return ret;
2376
2377         return vmw_view_bindings_add(sw_context, vmw_view_rt,
2378                                      vmw_ctx_binding_dx_rt, 0, (void *)&cmd[1],
2379                                      num_rt_view, 0);
2380 }
2381
2382 /**
2383  * vmw_cmd_dx_clear_rendertarget_view - Validate
2384  * SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW command
2385  *
2386  * @dev_priv: Pointer to a device private struct.
2387  * @sw_context: The software context being used for this batch.
2388  * @header: Pointer to the command header in the command stream.
2389  */
2390 static int vmw_cmd_dx_clear_rendertarget_view(struct vmw_private *dev_priv,
2391                                               struct vmw_sw_context *sw_context,
2392                                               SVGA3dCmdHeader *header)
2393 {
2394         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearRenderTargetView) =
2395                 container_of(header, typeof(*cmd), header);
2396         struct vmw_resource *ret;
2397
2398         ret = vmw_view_id_val_add(sw_context, vmw_view_rt,
2399                                   cmd->body.renderTargetViewId);
2400
2401         return PTR_ERR_OR_ZERO(ret);
2402 }
2403
2404 /**
2405  * vmw_cmd_dx_clear_depthstencil_view - Validate
2406  * SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW command
2407  *
2408  * @dev_priv: Pointer to a device private struct.
2409  * @sw_context: The software context being used for this batch.
2410  * @header: Pointer to the command header in the command stream.
2411  */
2412 static int vmw_cmd_dx_clear_depthstencil_view(struct vmw_private *dev_priv,
2413                                               struct vmw_sw_context *sw_context,
2414                                               SVGA3dCmdHeader *header)
2415 {
2416         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearDepthStencilView) =
2417                 container_of(header, typeof(*cmd), header);
2418         struct vmw_resource *ret;
2419
2420         ret = vmw_view_id_val_add(sw_context, vmw_view_ds,
2421                                   cmd->body.depthStencilViewId);
2422
2423         return PTR_ERR_OR_ZERO(ret);
2424 }
2425
2426 static int vmw_cmd_dx_view_define(struct vmw_private *dev_priv,
2427                                   struct vmw_sw_context *sw_context,
2428                                   SVGA3dCmdHeader *header)
2429 {
2430         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2431         struct vmw_resource *srf;
2432         struct vmw_resource *res;
2433         enum vmw_view_type view_type;
2434         int ret;
2435         /*
2436          * This is based on the fact that all affected define commands have the
2437          * same initial command body layout.
2438          */
2439         struct {
2440                 SVGA3dCmdHeader header;
2441                 uint32 defined_id;
2442                 uint32 sid;
2443         } *cmd;
2444
2445         if (!ctx_node)
2446                 return -EINVAL;
2447
2448         view_type = vmw_view_cmd_to_type(header->id);
2449         if (view_type == vmw_view_max)
2450                 return -EINVAL;
2451
2452         cmd = container_of(header, typeof(*cmd), header);
2453         if (unlikely(cmd->sid == SVGA3D_INVALID_ID)) {
2454                 VMW_DEBUG_USER("Invalid surface id.\n");
2455                 return -EINVAL;
2456         }
2457         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2458                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2459                                 &cmd->sid, &srf);
2460         if (unlikely(ret != 0))
2461                 return ret;
2462
2463         res = vmw_context_cotable(ctx_node->ctx, vmw_view_cotables[view_type]);
2464         ret = vmw_cotable_notify(res, cmd->defined_id);
2465         if (unlikely(ret != 0))
2466                 return ret;
2467
2468         return vmw_view_add(sw_context->man, ctx_node->ctx, srf, view_type,
2469                             cmd->defined_id, header,
2470                             header->size + sizeof(*header),
2471                             &sw_context->staged_cmd_res);
2472 }
2473
2474 /**
2475  * vmw_cmd_dx_set_so_targets - Validate SVGA_3D_CMD_DX_SET_SOTARGETS command.
2476  *
2477  * @dev_priv: Pointer to a device private struct.
2478  * @sw_context: The software context being used for this batch.
2479  * @header: Pointer to the command header in the command stream.
2480  */
2481 static int vmw_cmd_dx_set_so_targets(struct vmw_private *dev_priv,
2482                                      struct vmw_sw_context *sw_context,
2483                                      SVGA3dCmdHeader *header)
2484 {
2485         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2486         struct vmw_ctx_bindinfo_so_target binding;
2487         struct vmw_resource *res;
2488         struct {
2489                 SVGA3dCmdHeader header;
2490                 SVGA3dCmdDXSetSOTargets body;
2491                 SVGA3dSoTarget targets[];
2492         } *cmd;
2493         int i, ret, num;
2494
2495         if (!ctx_node)
2496                 return -EINVAL;
2497
2498         cmd = container_of(header, typeof(*cmd), header);
2499         num = (cmd->header.size - sizeof(cmd->body)) / sizeof(SVGA3dSoTarget);
2500
2501         if (num > SVGA3D_DX_MAX_SOTARGETS) {
2502                 VMW_DEBUG_USER("Invalid DX SO binding.\n");
2503                 return -EINVAL;
2504         }
2505
2506         for (i = 0; i < num; i++) {
2507                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2508                                         VMW_RES_DIRTY_SET,
2509                                         user_surface_converter,
2510                                         &cmd->targets[i].sid, &res);
2511                 if (unlikely(ret != 0))
2512                         return ret;
2513
2514                 binding.bi.ctx = ctx_node->ctx;
2515                 binding.bi.res = res;
2516                 binding.bi.bt = vmw_ctx_binding_so_target;
2517                 binding.offset = cmd->targets[i].offset;
2518                 binding.size = cmd->targets[i].sizeInBytes;
2519                 binding.slot = i;
2520
2521                 vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
2522         }
2523
2524         return 0;
2525 }
2526
2527 static int vmw_cmd_dx_so_define(struct vmw_private *dev_priv,
2528                                 struct vmw_sw_context *sw_context,
2529                                 SVGA3dCmdHeader *header)
2530 {
2531         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2532         struct vmw_resource *res;
2533         /*
2534          * This is based on the fact that all affected define commands have
2535          * the same initial command body layout.
2536          */
2537         struct {
2538                 SVGA3dCmdHeader header;
2539                 uint32 defined_id;
2540         } *cmd;
2541         enum vmw_so_type so_type;
2542         int ret;
2543
2544         if (!ctx_node)
2545                 return -EINVAL;
2546
2547         so_type = vmw_so_cmd_to_type(header->id);
2548         res = vmw_context_cotable(ctx_node->ctx, vmw_so_cotables[so_type]);
2549         cmd = container_of(header, typeof(*cmd), header);
2550         ret = vmw_cotable_notify(res, cmd->defined_id);
2551
2552         return ret;
2553 }
2554
2555 /**
2556  * vmw_cmd_dx_check_subresource - Validate SVGA_3D_CMD_DX_[X]_SUBRESOURCE
2557  * command
2558  *
2559  * @dev_priv: Pointer to a device private struct.
2560  * @sw_context: The software context being used for this batch.
2561  * @header: Pointer to the command header in the command stream.
2562  */
2563 static int vmw_cmd_dx_check_subresource(struct vmw_private *dev_priv,
2564                                         struct vmw_sw_context *sw_context,
2565                                         SVGA3dCmdHeader *header)
2566 {
2567         struct {
2568                 SVGA3dCmdHeader header;
2569                 union {
2570                         SVGA3dCmdDXReadbackSubResource r_body;
2571                         SVGA3dCmdDXInvalidateSubResource i_body;
2572                         SVGA3dCmdDXUpdateSubResource u_body;
2573                         SVGA3dSurfaceId sid;
2574                 };
2575         } *cmd;
2576
2577         BUILD_BUG_ON(offsetof(typeof(*cmd), r_body.sid) !=
2578                      offsetof(typeof(*cmd), sid));
2579         BUILD_BUG_ON(offsetof(typeof(*cmd), i_body.sid) !=
2580                      offsetof(typeof(*cmd), sid));
2581         BUILD_BUG_ON(offsetof(typeof(*cmd), u_body.sid) !=
2582                      offsetof(typeof(*cmd), sid));
2583
2584         cmd = container_of(header, typeof(*cmd), header);
2585         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2586                                  VMW_RES_DIRTY_NONE, user_surface_converter,
2587                                  &cmd->sid, NULL);
2588 }
2589
2590 static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv,
2591                                 struct vmw_sw_context *sw_context,
2592                                 SVGA3dCmdHeader *header)
2593 {
2594         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2595
2596         if (!ctx_node)
2597                 return -EINVAL;
2598
2599         return 0;
2600 }
2601
2602 /**
2603  * vmw_cmd_dx_view_remove - validate a view remove command and schedule the view
2604  * resource for removal.
2605  *
2606  * @dev_priv: Pointer to a device private struct.
2607  * @sw_context: The software context being used for this batch.
2608  * @header: Pointer to the command header in the command stream.
2609  *
2610  * Check that the view exists, and if it was not created using this command
2611  * batch, conditionally make this command a NOP.
2612  */
2613 static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv,
2614                                   struct vmw_sw_context *sw_context,
2615                                   SVGA3dCmdHeader *header)
2616 {
2617         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2618         struct {
2619                 SVGA3dCmdHeader header;
2620                 union vmw_view_destroy body;
2621         } *cmd = container_of(header, typeof(*cmd), header);
2622         enum vmw_view_type view_type = vmw_view_cmd_to_type(header->id);
2623         struct vmw_resource *view;
2624         int ret;
2625
2626         if (!ctx_node)
2627                 return -EINVAL;
2628
2629         ret = vmw_view_remove(sw_context->man, cmd->body.view_id, view_type,
2630                               &sw_context->staged_cmd_res, &view);
2631         if (ret || !view)
2632                 return ret;
2633
2634         /*
2635          * If the view wasn't created during this command batch, it might
2636          * have been removed due to a context swapout, so add a
2637          * relocation to conditionally make this command a NOP to avoid
2638          * device errors.
2639          */
2640         return vmw_resource_relocation_add(sw_context, view,
2641                                            vmw_ptr_diff(sw_context->buf_start,
2642                                                         &cmd->header.id),
2643                                            vmw_res_rel_cond_nop);
2644 }
2645
2646 /**
2647  * vmw_cmd_dx_define_shader - Validate SVGA_3D_CMD_DX_DEFINE_SHADER command
2648  *
2649  * @dev_priv: Pointer to a device private struct.
2650  * @sw_context: The software context being used for this batch.
2651  * @header: Pointer to the command header in the command stream.
2652  */
2653 static int vmw_cmd_dx_define_shader(struct vmw_private *dev_priv,
2654                                     struct vmw_sw_context *sw_context,
2655                                     SVGA3dCmdHeader *header)
2656 {
2657         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2658         struct vmw_resource *res;
2659         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineShader) =
2660                 container_of(header, typeof(*cmd), header);
2661         int ret;
2662
2663         if (!ctx_node)
2664                 return -EINVAL;
2665
2666         res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXSHADER);
2667         ret = vmw_cotable_notify(res, cmd->body.shaderId);
2668         if (ret)
2669                 return ret;
2670
2671         return vmw_dx_shader_add(sw_context->man, ctx_node->ctx,
2672                                  cmd->body.shaderId, cmd->body.type,
2673                                  &sw_context->staged_cmd_res);
2674 }
2675
2676 /**
2677  * vmw_cmd_dx_destroy_shader - Validate SVGA_3D_CMD_DX_DESTROY_SHADER command
2678  *
2679  * @dev_priv: Pointer to a device private struct.
2680  * @sw_context: The software context being used for this batch.
2681  * @header: Pointer to the command header in the command stream.
2682  */
2683 static int vmw_cmd_dx_destroy_shader(struct vmw_private *dev_priv,
2684                                      struct vmw_sw_context *sw_context,
2685                                      SVGA3dCmdHeader *header)
2686 {
2687         struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
2688         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDestroyShader) =
2689                 container_of(header, typeof(*cmd), header);
2690         int ret;
2691
2692         if (!ctx_node)
2693                 return -EINVAL;
2694
2695         ret = vmw_shader_remove(sw_context->man, cmd->body.shaderId, 0,
2696                                 &sw_context->staged_cmd_res);
2697
2698         return ret;
2699 }
2700
2701 /**
2702  * vmw_cmd_dx_bind_shader - Validate SVGA_3D_CMD_DX_BIND_SHADER command
2703  *
2704  * @dev_priv: Pointer to a device private struct.
2705  * @sw_context: The software context being used for this batch.
2706  * @header: Pointer to the command header in the command stream.
2707  */
2708 static int vmw_cmd_dx_bind_shader(struct vmw_private *dev_priv,
2709                                   struct vmw_sw_context *sw_context,
2710                                   SVGA3dCmdHeader *header)
2711 {
2712         struct vmw_resource *ctx;
2713         struct vmw_resource *res;
2714         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindShader) =
2715                 container_of(header, typeof(*cmd), header);
2716         int ret;
2717
2718         if (cmd->body.cid != SVGA3D_INVALID_ID) {
2719                 ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
2720                                         VMW_RES_DIRTY_SET,
2721                                         user_context_converter, &cmd->body.cid,
2722                                         &ctx);
2723                 if (ret)
2724                         return ret;
2725         } else {
2726                 struct vmw_ctx_validation_info *ctx_node =
2727                         VMW_GET_CTX_NODE(sw_context);
2728
2729                 if (!ctx_node)
2730                         return -EINVAL;
2731
2732                 ctx = ctx_node->ctx;
2733         }
2734
2735         res = vmw_shader_lookup(vmw_context_res_man(ctx), cmd->body.shid, 0);
2736         if (IS_ERR(res)) {
2737                 VMW_DEBUG_USER("Could not find shader to bind.\n");
2738                 return PTR_ERR(res);
2739         }
2740
2741         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
2742                                             VMW_RES_DIRTY_NONE);
2743         if (ret) {
2744                 VMW_DEBUG_USER("Error creating resource validation node.\n");
2745                 return ret;
2746         }
2747
2748         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
2749                                          &cmd->body.mobid,
2750                                          cmd->body.offsetInBytes);
2751 }
2752
2753 /**
2754  * vmw_cmd_dx_genmips - Validate SVGA_3D_CMD_DX_GENMIPS command
2755  *
2756  * @dev_priv: Pointer to a device private struct.
2757  * @sw_context: The software context being used for this batch.
2758  * @header: Pointer to the command header in the command stream.
2759  */
2760 static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv,
2761                               struct vmw_sw_context *sw_context,
2762                               SVGA3dCmdHeader *header)
2763 {
2764         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXGenMips) =
2765                 container_of(header, typeof(*cmd), header);
2766         struct vmw_resource *view;
2767         struct vmw_res_cache_entry *rcache;
2768
2769         view = vmw_view_id_val_add(sw_context, vmw_view_sr,
2770                                    cmd->body.shaderResourceViewId);
2771         if (IS_ERR(view))
2772                 return PTR_ERR(view);
2773
2774         /*
2775          * Normally the shader-resource view is not gpu-dirtying, but for
2776          * this particular command it is...
2777          * So mark the last looked-up surface, which is the surface
2778          * the view points to, gpu-dirty.
2779          */
2780         rcache = &sw_context->res_cache[vmw_res_surface];
2781         vmw_validation_res_set_dirty(sw_context->ctx, rcache->private,
2782                                      VMW_RES_DIRTY_SET);
2783         return 0;
2784 }
2785
2786 /**
2787  * vmw_cmd_dx_transfer_from_buffer - Validate
2788  * SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
2789  *
2790  * @dev_priv: Pointer to a device private struct.
2791  * @sw_context: The software context being used for this batch.
2792  * @header: Pointer to the command header in the command stream.
2793  */
2794 static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv,
2795                                            struct vmw_sw_context *sw_context,
2796                                            SVGA3dCmdHeader *header)
2797 {
2798         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXTransferFromBuffer) =
2799                 container_of(header, typeof(*cmd), header);
2800         int ret;
2801
2802         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2803                                 VMW_RES_DIRTY_NONE, user_surface_converter,
2804                                 &cmd->body.srcSid, NULL);
2805         if (ret != 0)
2806                 return ret;
2807
2808         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2809                                  VMW_RES_DIRTY_SET, user_surface_converter,
2810                                  &cmd->body.destSid, NULL);
2811 }
2812
2813 /**
2814  * vmw_cmd_intra_surface_copy - Validate SVGA_3D_CMD_INTRA_SURFACE_COPY command
2815  *
2816  * @dev_priv: Pointer to a device private struct.
2817  * @sw_context: The software context being used for this batch.
2818  * @header: Pointer to the command header in the command stream.
2819  */
2820 static int vmw_cmd_intra_surface_copy(struct vmw_private *dev_priv,
2821                                            struct vmw_sw_context *sw_context,
2822                                            SVGA3dCmdHeader *header)
2823 {
2824         VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdIntraSurfaceCopy) =
2825                 container_of(header, typeof(*cmd), header);
2826
2827         if (!(dev_priv->capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY))
2828                 return -EINVAL;
2829
2830         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
2831                                  VMW_RES_DIRTY_SET, user_surface_converter,
2832                                  &cmd->body.surface.sid, NULL);
2833 }
2834
2835 static int vmw_cmd_sm5(struct vmw_private *dev_priv,
2836                        struct vmw_sw_context *sw_context,
2837                        SVGA3dCmdHeader *header)
2838 {
2839         if (!has_sm5_context(dev_priv))
2840                 return -EINVAL;
2841
2842         return 0;
2843 }
2844
2845 static int vmw_cmd_sm5_view_define(struct vmw_private *dev_priv,
2846                                    struct vmw_sw_context *sw_context,
2847                                    SVGA3dCmdHeader *header)
2848 {
2849         if (!has_sm5_context(dev_priv))
2850                 return -EINVAL;
2851
2852         return vmw_cmd_dx_view_define(dev_priv, sw_context, header);
2853 }
2854
2855 static int vmw_cmd_sm5_view_remove(struct vmw_private *dev_priv,
2856                                    struct vmw_sw_context *sw_context,
2857                                    SVGA3dCmdHeader *header)
2858 {
2859         if (!has_sm5_context(dev_priv))
2860                 return -EINVAL;
2861
2862         return vmw_cmd_dx_view_remove(dev_priv, sw_context, header);
2863 }
2864
2865 static int vmw_cmd_clear_uav_uint(struct vmw_private *dev_priv,
2866                                   struct vmw_sw_context *sw_context,
2867                                   SVGA3dCmdHeader *header)
2868 {
2869         struct {
2870                 SVGA3dCmdHeader header;
2871                 SVGA3dCmdDXClearUAViewUint body;
2872         } *cmd = container_of(header, typeof(*cmd), header);
2873         struct vmw_resource *ret;
2874
2875         if (!has_sm5_context(dev_priv))
2876                 return -EINVAL;
2877
2878         ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
2879                                   cmd->body.uaViewId);
2880
2881         return PTR_ERR_OR_ZERO(ret);
2882 }
2883
2884 static int vmw_cmd_clear_uav_float(struct vmw_private *dev_priv,
2885                                    struct vmw_sw_context *sw_context,
2886                                    SVGA3dCmdHeader *header)
2887 {
2888         struct {
2889                 SVGA3dCmdHeader header;
2890                 SVGA3dCmdDXClearUAViewFloat body;
2891         } *cmd = container_of(header, typeof(*cmd), header);
2892         struct vmw_resource *ret;
2893
2894         if (!has_sm5_context(dev_priv))
2895                 return -EINVAL;
2896
2897         ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
2898                                   cmd->body.uaViewId);
2899
2900         return PTR_ERR_OR_ZERO(ret);
2901 }
2902
2903 static int vmw_cmd_set_uav(struct vmw_private *dev_priv,
2904                            struct vmw_sw_context *sw_context,
2905                            SVGA3dCmdHeader *header)
2906 {
2907         struct {
2908                 SVGA3dCmdHeader header;
2909                 SVGA3dCmdDXSetUAViews body;
2910         } *cmd = container_of(header, typeof(*cmd), header);
2911         u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
2912                 sizeof(SVGA3dUAViewId);
2913         int ret;
2914
2915         if (!has_sm5_context(dev_priv))
2916                 return -EINVAL;
2917
2918         if (num_uav > SVGA3D_MAX_UAVIEWS) {
2919                 VMW_DEBUG_USER("Invalid UAV binding.\n");
2920                 return -EINVAL;
2921         }
2922
2923         ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
2924                                     vmw_ctx_binding_uav, 0, (void *)&cmd[1],
2925                                     num_uav, 0);
2926         if (ret)
2927                 return ret;
2928
2929         vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 0,
2930                                          cmd->body.uavSpliceIndex);
2931
2932         return ret;
2933 }
2934
2935 static int vmw_cmd_set_cs_uav(struct vmw_private *dev_priv,
2936                               struct vmw_sw_context *sw_context,
2937                               SVGA3dCmdHeader *header)
2938 {
2939         struct {
2940                 SVGA3dCmdHeader header;
2941                 SVGA3dCmdDXSetCSUAViews body;
2942         } *cmd = container_of(header, typeof(*cmd), header);
2943         u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
2944                 sizeof(SVGA3dUAViewId);
2945         int ret;
2946
2947         if (!has_sm5_context(dev_priv))
2948                 return -EINVAL;
2949
2950         if (num_uav > SVGA3D_MAX_UAVIEWS) {
2951                 VMW_DEBUG_USER("Invalid UAV binding.\n");
2952                 return -EINVAL;
2953         }
2954
2955         ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
2956                                     vmw_ctx_binding_cs_uav, 0, (void *)&cmd[1],
2957                                     num_uav, 0);
2958         if (ret)
2959                 return ret;
2960
2961         vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 1,
2962                                   cmd->body.startIndex);
2963
2964         return ret;
2965 }
2966
2967 static int vmw_cmd_dx_define_streamoutput(struct vmw_private *dev_priv,
2968                                           struct vmw_sw_context *sw_context,
2969                                           SVGA3dCmdHeader *header)
2970 {
2971         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
2972         struct vmw_resource *res;
2973         struct {
2974                 SVGA3dCmdHeader header;
2975                 SVGA3dCmdDXDefineStreamOutputWithMob body;
2976         } *cmd = container_of(header, typeof(*cmd), header);
2977         int ret;
2978
2979         if (!has_sm5_context(dev_priv))
2980                 return -EINVAL;
2981
2982         if (!ctx_node) {
2983                 DRM_ERROR("DX Context not set.\n");
2984                 return -EINVAL;
2985         }
2986
2987         res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_STREAMOUTPUT);
2988         ret = vmw_cotable_notify(res, cmd->body.soid);
2989         if (ret)
2990                 return ret;
2991
2992         return vmw_dx_streamoutput_add(sw_context->man, ctx_node->ctx,
2993                                        cmd->body.soid,
2994                                        &sw_context->staged_cmd_res);
2995 }
2996
2997 static int vmw_cmd_dx_destroy_streamoutput(struct vmw_private *dev_priv,
2998                                            struct vmw_sw_context *sw_context,
2999                                            SVGA3dCmdHeader *header)
3000 {
3001         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3002         struct vmw_resource *res;
3003         struct {
3004                 SVGA3dCmdHeader header;
3005                 SVGA3dCmdDXDestroyStreamOutput body;
3006         } *cmd = container_of(header, typeof(*cmd), header);
3007
3008         if (!ctx_node) {
3009                 DRM_ERROR("DX Context not set.\n");
3010                 return -EINVAL;
3011         }
3012
3013         /*
3014          * When device does not support SM5 then streamoutput with mob command is
3015          * not available to user-space. Simply return in this case.
3016          */
3017         if (!has_sm5_context(dev_priv))
3018                 return 0;
3019
3020         /*
3021          * With SM5 capable device if lookup fails then user-space probably used
3022          * old streamoutput define command. Return without an error.
3023          */
3024         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3025                                          cmd->body.soid);
3026         if (IS_ERR(res))
3027                 return 0;
3028
3029         return vmw_dx_streamoutput_remove(sw_context->man, cmd->body.soid,
3030                                           &sw_context->staged_cmd_res);
3031 }
3032
3033 static int vmw_cmd_dx_bind_streamoutput(struct vmw_private *dev_priv,
3034                                         struct vmw_sw_context *sw_context,
3035                                         SVGA3dCmdHeader *header)
3036 {
3037         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3038         struct vmw_resource *res;
3039         struct {
3040                 SVGA3dCmdHeader header;
3041                 SVGA3dCmdDXBindStreamOutput body;
3042         } *cmd = container_of(header, typeof(*cmd), header);
3043         int ret;
3044
3045         if (!has_sm5_context(dev_priv))
3046                 return -EINVAL;
3047
3048         if (!ctx_node) {
3049                 DRM_ERROR("DX Context not set.\n");
3050                 return -EINVAL;
3051         }
3052
3053         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3054                                          cmd->body.soid);
3055         if (IS_ERR(res)) {
3056                 DRM_ERROR("Could not find streamoutput to bind.\n");
3057                 return PTR_ERR(res);
3058         }
3059
3060         vmw_dx_streamoutput_set_size(res, cmd->body.sizeInBytes);
3061
3062         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
3063                                             VMW_RES_DIRTY_NONE);
3064         if (ret) {
3065                 DRM_ERROR("Error creating resource validation node.\n");
3066                 return ret;
3067         }
3068
3069         return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
3070                                          &cmd->body.mobid,
3071                                          cmd->body.offsetInBytes);
3072 }
3073
3074 static int vmw_cmd_dx_set_streamoutput(struct vmw_private *dev_priv,
3075                                        struct vmw_sw_context *sw_context,
3076                                        SVGA3dCmdHeader *header)
3077 {
3078         struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
3079         struct vmw_resource *res;
3080         struct vmw_ctx_bindinfo_so binding;
3081         struct {
3082                 SVGA3dCmdHeader header;
3083                 SVGA3dCmdDXSetStreamOutput body;
3084         } *cmd = container_of(header, typeof(*cmd), header);
3085         int ret;
3086
3087         if (!ctx_node) {
3088                 DRM_ERROR("DX Context not set.\n");
3089                 return -EINVAL;
3090         }
3091
3092         if (cmd->body.soid == SVGA3D_INVALID_ID)
3093                 return 0;
3094
3095         /*
3096          * When device does not support SM5 then streamoutput with mob command is
3097          * not available to user-space. Simply return in this case.
3098          */
3099         if (!has_sm5_context(dev_priv))
3100                 return 0;
3101
3102         /*
3103          * With SM5 capable device if lookup fails then user-space probably used
3104          * old streamoutput define command. Return without an error.
3105          */
3106         res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
3107                                          cmd->body.soid);
3108         if (IS_ERR(res)) {
3109                 return 0;
3110         }
3111
3112         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
3113                                             VMW_RES_DIRTY_NONE);
3114         if (ret) {
3115                 DRM_ERROR("Error creating resource validation node.\n");
3116                 return ret;
3117         }
3118
3119         binding.bi.ctx = ctx_node->ctx;
3120         binding.bi.res = res;
3121         binding.bi.bt = vmw_ctx_binding_so;
3122         binding.slot = 0; /* Only one SO set to context at a time. */
3123
3124         vmw_binding_add(sw_context->dx_ctx_node->staged, &binding.bi, 0,
3125                         binding.slot);
3126
3127         return ret;
3128 }
3129
3130 static int vmw_cmd_indexed_instanced_indirect(struct vmw_private *dev_priv,
3131                                               struct vmw_sw_context *sw_context,
3132                                               SVGA3dCmdHeader *header)
3133 {
3134         struct vmw_draw_indexed_instanced_indirect_cmd {
3135                 SVGA3dCmdHeader header;
3136                 SVGA3dCmdDXDrawIndexedInstancedIndirect body;
3137         } *cmd = container_of(header, typeof(*cmd), header);
3138
3139         if (!has_sm5_context(dev_priv))
3140                 return -EINVAL;
3141
3142         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3143                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3144                                  &cmd->body.argsBufferSid, NULL);
3145 }
3146
3147 static int vmw_cmd_instanced_indirect(struct vmw_private *dev_priv,
3148                                       struct vmw_sw_context *sw_context,
3149                                       SVGA3dCmdHeader *header)
3150 {
3151         struct vmw_draw_instanced_indirect_cmd {
3152                 SVGA3dCmdHeader header;
3153                 SVGA3dCmdDXDrawInstancedIndirect body;
3154         } *cmd = container_of(header, typeof(*cmd), header);
3155
3156         if (!has_sm5_context(dev_priv))
3157                 return -EINVAL;
3158
3159         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3160                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3161                                  &cmd->body.argsBufferSid, NULL);
3162 }
3163
3164 static int vmw_cmd_dispatch_indirect(struct vmw_private *dev_priv,
3165                                      struct vmw_sw_context *sw_context,
3166                                      SVGA3dCmdHeader *header)
3167 {
3168         struct vmw_dispatch_indirect_cmd {
3169                 SVGA3dCmdHeader header;
3170                 SVGA3dCmdDXDispatchIndirect body;
3171         } *cmd = container_of(header, typeof(*cmd), header);
3172
3173         if (!has_sm5_context(dev_priv))
3174                 return -EINVAL;
3175
3176         return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
3177                                  VMW_RES_DIRTY_NONE, user_surface_converter,
3178                                  &cmd->body.argsBufferSid, NULL);
3179 }
3180
3181 static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
3182                                 struct vmw_sw_context *sw_context,
3183                                 void *buf, uint32_t *size)
3184 {
3185         uint32_t size_remaining = *size;
3186         uint32_t cmd_id;
3187
3188         cmd_id = ((uint32_t *)buf)[0];
3189         switch (cmd_id) {
3190         case SVGA_CMD_UPDATE:
3191                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdUpdate);
3192                 break;
3193         case SVGA_CMD_DEFINE_GMRFB:
3194                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdDefineGMRFB);
3195                 break;
3196         case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
3197                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3198                 break;
3199         case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
3200                 *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3201                 break;
3202         default:
3203                 VMW_DEBUG_USER("Unsupported SVGA command: %u.\n", cmd_id);
3204                 return -EINVAL;
3205         }
3206
3207         if (*size > size_remaining) {
3208                 VMW_DEBUG_USER("Invalid SVGA command (size mismatch): %u.\n",
3209                                cmd_id);
3210                 return -EINVAL;
3211         }
3212
3213         if (unlikely(!sw_context->kernel)) {
3214                 VMW_DEBUG_USER("Kernel only SVGA command: %u.\n", cmd_id);
3215                 return -EPERM;
3216         }
3217
3218         if (cmd_id == SVGA_CMD_DEFINE_GMRFB)
3219                 return vmw_cmd_check_define_gmrfb(dev_priv, sw_context, buf);
3220
3221         return 0;
3222 }
3223
3224 static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
3225         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE, &vmw_cmd_invalid,
3226                     false, false, false),
3227         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DESTROY, &vmw_cmd_invalid,
3228                     false, false, false),
3229         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_COPY, &vmw_cmd_surface_copy_check,
3230                     true, false, false),
3231         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_STRETCHBLT, &vmw_cmd_stretch_blt_check,
3232                     true, false, false),
3233         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DMA, &vmw_cmd_dma,
3234                     true, false, false),
3235         VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DEFINE, &vmw_cmd_invalid,
3236                     false, false, false),
3237         VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DESTROY, &vmw_cmd_invalid,
3238                     false, false, false),
3239         VMW_CMD_DEF(SVGA_3D_CMD_SETTRANSFORM, &vmw_cmd_cid_check,
3240                     true, false, false),
3241         VMW_CMD_DEF(SVGA_3D_CMD_SETZRANGE, &vmw_cmd_cid_check,
3242                     true, false, false),
3243         VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERSTATE, &vmw_cmd_cid_check,
3244                     true, false, false),
3245         VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERTARGET,
3246                     &vmw_cmd_set_render_target_check, true, false, false),
3247         VMW_CMD_DEF(SVGA_3D_CMD_SETTEXTURESTATE, &vmw_cmd_tex_state,
3248                     true, false, false),
3249         VMW_CMD_DEF(SVGA_3D_CMD_SETMATERIAL, &vmw_cmd_cid_check,
3250                     true, false, false),
3251         VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTDATA, &vmw_cmd_cid_check,
3252                     true, false, false),
3253         VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTENABLED, &vmw_cmd_cid_check,
3254                     true, false, false),
3255         VMW_CMD_DEF(SVGA_3D_CMD_SETVIEWPORT, &vmw_cmd_cid_check,
3256                     true, false, false),
3257         VMW_CMD_DEF(SVGA_3D_CMD_SETCLIPPLANE, &vmw_cmd_cid_check,
3258                     true, false, false),
3259         VMW_CMD_DEF(SVGA_3D_CMD_CLEAR, &vmw_cmd_cid_check,
3260                     true, false, false),
3261         VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check,
3262                     false, false, false),
3263         VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_shader_define,
3264                     true, false, false),
3265         VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_shader_destroy,
3266                     true, false, false),
3267         VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader,
3268                     true, false, false),
3269         VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_set_shader_const,
3270                     true, false, false),
3271         VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw,
3272                     true, false, false),
3273         VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check,
3274                     true, false, false),
3275         VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_begin_query,
3276                     true, false, false),
3277         VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query,
3278                     true, false, false),
3279         VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query,
3280                     true, false, false),
3281         VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok,
3282                     true, false, false),
3283         VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
3284                     &vmw_cmd_blt_surf_screen_check, false, false, false),
3285         VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE_V2, &vmw_cmd_invalid,
3286                     false, false, false),
3287         VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid,
3288                     false, false, false),
3289         VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid,
3290                     false, false, false),
3291         VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid,
3292                     false, false, false),
3293         VMW_CMD_DEF(SVGA_3D_CMD_SCREEN_DMA, &vmw_cmd_invalid,
3294                     false, false, false),
3295         VMW_CMD_DEF(SVGA_3D_CMD_DEAD1, &vmw_cmd_invalid,
3296                     false, false, false),
3297         VMW_CMD_DEF(SVGA_3D_CMD_DEAD2, &vmw_cmd_invalid,
3298                     false, false, false),
3299         VMW_CMD_DEF(SVGA_3D_CMD_DEAD12, &vmw_cmd_invalid, false, false, false),
3300         VMW_CMD_DEF(SVGA_3D_CMD_DEAD13, &vmw_cmd_invalid, false, false, false),
3301         VMW_CMD_DEF(SVGA_3D_CMD_DEAD14, &vmw_cmd_invalid, false, false, false),
3302         VMW_CMD_DEF(SVGA_3D_CMD_DEAD15, &vmw_cmd_invalid, false, false, false),
3303         VMW_CMD_DEF(SVGA_3D_CMD_DEAD16, &vmw_cmd_invalid, false, false, false),
3304         VMW_CMD_DEF(SVGA_3D_CMD_DEAD17, &vmw_cmd_invalid, false, false, false),
3305         VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE, &vmw_cmd_invalid,
3306                     false, false, true),
3307         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_OTABLE, &vmw_cmd_invalid,
3308                     false, false, true),
3309         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_MOB, &vmw_cmd_invalid,
3310                     false, false, true),
3311         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_MOB, &vmw_cmd_invalid,
3312                     false, false, true),
3313         VMW_CMD_DEF(SVGA_3D_CMD_REDEFINE_GB_MOB64, &vmw_cmd_invalid,
3314                     false, false, true),
3315         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_MOB_MAPPING, &vmw_cmd_invalid,
3316                     false, false, true),
3317         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE, &vmw_cmd_invalid,
3318                     false, false, true),
3319         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SURFACE, &vmw_cmd_invalid,
3320                     false, false, true),
3321         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE, &vmw_cmd_bind_gb_surface,
3322                     true, false, true),
3323         VMW_CMD_DEF(SVGA_3D_CMD_COND_BIND_GB_SURFACE, &vmw_cmd_invalid,
3324                     false, false, true),
3325         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_IMAGE, &vmw_cmd_update_gb_image,
3326                     true, false, true),
3327         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SURFACE,
3328                     &vmw_cmd_update_gb_surface, true, false, true),
3329         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE,
3330                     &vmw_cmd_readback_gb_image, true, false, true),
3331         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_SURFACE,
3332                     &vmw_cmd_readback_gb_surface, true, false, true),
3333         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE,
3334                     &vmw_cmd_invalidate_gb_image, true, false, true),
3335         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_SURFACE,
3336                     &vmw_cmd_invalidate_gb_surface, true, false, true),
3337         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_CONTEXT, &vmw_cmd_invalid,
3338                     false, false, true),
3339         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_CONTEXT, &vmw_cmd_invalid,
3340                     false, false, true),
3341         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid,
3342                     false, false, true),
3343         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid,
3344                     false, false, true),
3345         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid,
3346                     false, false, true),
3347         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid,
3348                     false, false, true),
3349         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader,
3350                     true, false, true),
3351         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid,
3352                     false, false, true),
3353         VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE64, &vmw_cmd_invalid,
3354                     false, false, false),
3355         VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query,
3356                     true, false, true),
3357         VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query,
3358                     true, false, true),
3359         VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query,
3360                     true, false, true),
3361         VMW_CMD_DEF(SVGA_3D_CMD_NOP, &vmw_cmd_ok,
3362                     true, false, true),
3363         VMW_CMD_DEF(SVGA_3D_CMD_NOP_ERROR, &vmw_cmd_ok,
3364                     true, false, true),
3365         VMW_CMD_DEF(SVGA_3D_CMD_ENABLE_GART, &vmw_cmd_invalid,
3366                     false, false, true),
3367         VMW_CMD_DEF(SVGA_3D_CMD_DISABLE_GART, &vmw_cmd_invalid,
3368                     false, false, true),
3369         VMW_CMD_DEF(SVGA_3D_CMD_MAP_MOB_INTO_GART, &vmw_cmd_invalid,
3370                     false, false, true),
3371         VMW_CMD_DEF(SVGA_3D_CMD_UNMAP_GART_RANGE, &vmw_cmd_invalid,
3372                     false, false, true),
3373         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SCREENTARGET, &vmw_cmd_invalid,
3374                     false, false, true),
3375         VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SCREENTARGET, &vmw_cmd_invalid,
3376                     false, false, true),
3377         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SCREENTARGET, &vmw_cmd_invalid,
3378                     false, false, true),
3379         VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SCREENTARGET, &vmw_cmd_invalid,
3380                     false, false, true),
3381         VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
3382                     false, false, true),
3383         VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
3384                     false, false, true),
3385         VMW_CMD_DEF(SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE, &vmw_cmd_cid_check,
3386                     true, false, true),
3387         VMW_CMD_DEF(SVGA_3D_CMD_GB_SCREEN_DMA, &vmw_cmd_invalid,
3388                     false, false, true),
3389         VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE_WITH_PITCH, &vmw_cmd_invalid,
3390                     false, false, true),
3391         VMW_CMD_DEF(SVGA_3D_CMD_GB_MOB_FENCE, &vmw_cmd_invalid,
3392                     false, false, true),
3393         VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE_V2, &vmw_cmd_invalid,
3394                     false, false, true),
3395
3396         /* SM commands */
3397         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_CONTEXT, &vmw_cmd_invalid,
3398                     false, false, true),
3399         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_CONTEXT, &vmw_cmd_invalid,
3400                     false, false, true),
3401         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_CONTEXT, &vmw_cmd_invalid,
3402                     false, false, true),
3403         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_CONTEXT, &vmw_cmd_invalid,
3404                     false, false, true),
3405         VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_CONTEXT, &vmw_cmd_invalid,
3406                     false, false, true),
3407         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER,
3408                     &vmw_cmd_dx_set_single_constant_buffer, true, false, true),
3409         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER_RESOURCES,
3410                     &vmw_cmd_dx_set_shader_res, true, false, true),
3411         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER, &vmw_cmd_dx_set_shader,
3412                     true, false, true),
3413         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SAMPLERS, &vmw_cmd_dx_cid_check,
3414                     true, false, true),
3415         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW, &vmw_cmd_dx_cid_check,
3416                     true, false, true),
3417         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED, &vmw_cmd_dx_cid_check,
3418                     true, false, true),
3419         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED, &vmw_cmd_dx_cid_check,
3420                     true, false, true),
3421         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED,
3422                     &vmw_cmd_dx_cid_check, true, false, true),
3423         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_AUTO, &vmw_cmd_dx_cid_check,
3424                     true, false, true),
3425         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS,
3426                     &vmw_cmd_dx_set_vertex_buffers, true, false, true),
3427         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INDEX_BUFFER,
3428                     &vmw_cmd_dx_set_index_buffer, true, false, true),
3429         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RENDERTARGETS,
3430                     &vmw_cmd_dx_set_rendertargets, true, false, true),
3431         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_BLEND_STATE, &vmw_cmd_dx_cid_check,
3432                     true, false, true),
3433         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DEPTHSTENCIL_STATE,
3434                     &vmw_cmd_dx_cid_check, true, false, true),
3435         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RASTERIZER_STATE,
3436                     &vmw_cmd_dx_cid_check, true, false, true),
3437         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_QUERY, &vmw_cmd_dx_define_query,
3438                     true, false, true),
3439         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_dx_cid_check,
3440                     true, false, true),
3441         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_QUERY, &vmw_cmd_dx_bind_query,
3442                     true, false, true),
3443         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_QUERY_OFFSET,
3444                     &vmw_cmd_dx_cid_check, true, false, true),
3445         VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_dx_cid_check,
3446                     true, false, true),
3447         VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_dx_cid_check,
3448                     true, false, true),
3449         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_QUERY, &vmw_cmd_invalid,
3450                     true, false, true),
3451         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_dx_cid_check,
3452                     true, false, true),
3453         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VIEWPORTS, &vmw_cmd_dx_cid_check,
3454                     true, false, true),
3455         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SCISSORRECTS, &vmw_cmd_dx_cid_check,
3456                     true, false, true),
3457         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW,
3458                     &vmw_cmd_dx_clear_rendertarget_view, true, false, true),
3459         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW,
3460                     &vmw_cmd_dx_clear_depthstencil_view, true, false, true),
3461         VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY, &vmw_cmd_invalid,
3462                     true, false, true),
3463         VMW_CMD_DEF(SVGA_3D_CMD_DX_GENMIPS, &vmw_cmd_dx_genmips,
3464                     true, false, true),
3465         VMW_CMD_DEF(SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE,
3466                     &vmw_cmd_dx_check_subresource, true, false, true),
3467         VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_SUBRESOURCE,
3468                     &vmw_cmd_dx_check_subresource, true, false, true),
3469         VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_SUBRESOURCE,
3470                     &vmw_cmd_dx_check_subresource, true, false, true),
3471         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW,
3472                     &vmw_cmd_dx_view_define, true, false, true),
3473         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADERRESOURCE_VIEW,
3474                     &vmw_cmd_dx_view_remove, true, false, true),
3475         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RENDERTARGET_VIEW,
3476                     &vmw_cmd_dx_view_define, true, false, true),
3477         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RENDERTARGET_VIEW,
3478                     &vmw_cmd_dx_view_remove, true, false, true),
3479         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW,
3480                     &vmw_cmd_dx_view_define, true, false, true),
3481         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_VIEW,
3482                     &vmw_cmd_dx_view_remove, true, false, true),
3483         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT,
3484                     &vmw_cmd_dx_so_define, true, false, true),
3485         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT,
3486                     &vmw_cmd_dx_cid_check, true, false, true),
3487         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_BLEND_STATE,
3488                     &vmw_cmd_dx_so_define, true, false, true),
3489         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_BLEND_STATE,
3490                     &vmw_cmd_dx_cid_check, true, false, true),
3491         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE,
3492                     &vmw_cmd_dx_so_define, true, false, true),
3493         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE,
3494                     &vmw_cmd_dx_cid_check, true, false, true),
3495         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE,
3496                     &vmw_cmd_dx_so_define, true, false, true),
3497         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE,
3498                     &vmw_cmd_dx_cid_check, true, false, true),
3499         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE,
3500                     &vmw_cmd_dx_so_define, true, false, true),
3501         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE,
3502                     &vmw_cmd_dx_cid_check, true, false, true),
3503         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADER,
3504                     &vmw_cmd_dx_define_shader, true, false, true),
3505         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADER,
3506                     &vmw_cmd_dx_destroy_shader, true, false, true),
3507         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_SHADER,
3508                     &vmw_cmd_dx_bind_shader, true, false, true),
3509         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT,
3510                     &vmw_cmd_dx_so_define, true, false, true),
3511         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT,
3512                     &vmw_cmd_dx_destroy_streamoutput, true, false, true),
3513         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_STREAMOUTPUT,
3514                     &vmw_cmd_dx_set_streamoutput, true, false, true),
3515         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SOTARGETS,
3516                     &vmw_cmd_dx_set_so_targets, true, false, true),
3517         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INPUT_LAYOUT,
3518                     &vmw_cmd_dx_cid_check, true, false, true),
3519         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_TOPOLOGY,
3520                     &vmw_cmd_dx_cid_check, true, false, true),
3521         VMW_CMD_DEF(SVGA_3D_CMD_DX_BUFFER_COPY,
3522                     &vmw_cmd_buffer_copy_check, true, false, true),
3523         VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION,
3524                     &vmw_cmd_pred_copy_check, true, false, true),
3525         VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
3526                     &vmw_cmd_dx_transfer_from_buffer,
3527                     true, false, true),
3528         VMW_CMD_DEF(SVGA_3D_CMD_INTRA_SURFACE_COPY, &vmw_cmd_intra_surface_copy,
3529                     true, false, true),
3530
3531         /*
3532          * SM5 commands
3533          */
3534         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_UA_VIEW, &vmw_cmd_sm5_view_define,
3535                     true, false, true),
3536         VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_UA_VIEW, &vmw_cmd_sm5_view_remove,
3537                     true, false, true),
3538         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_UINT, &vmw_cmd_clear_uav_uint,
3539                     true, false, true),
3540         VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_FLOAT,
3541                     &vmw_cmd_clear_uav_float, true, false, true),
3542         VMW_CMD_DEF(SVGA_3D_CMD_DX_COPY_STRUCTURE_COUNT, &vmw_cmd_invalid, true,
3543                     false, true),
3544         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_UA_VIEWS, &vmw_cmd_set_uav, true, false,
3545                     true),
3546         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED_INDIRECT,
3547                     &vmw_cmd_indexed_instanced_indirect, true, false, true),
3548         VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED_INDIRECT,
3549                     &vmw_cmd_instanced_indirect, true, false, true),
3550         VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH, &vmw_cmd_sm5, true, false, true),
3551         VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH_INDIRECT,
3552                     &vmw_cmd_dispatch_indirect, true, false, true),
3553         VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_UA_VIEWS, &vmw_cmd_set_cs_uav, true,
3554                     false, true),
3555         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW_V2,
3556                     &vmw_cmd_sm5_view_define, true, false, true),
3557         VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT_WITH_MOB,
3558                     &vmw_cmd_dx_define_streamoutput, true, false, true),
3559         VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_STREAMOUTPUT,
3560                     &vmw_cmd_dx_bind_streamoutput, true, false, true),
3561 };
3562
3563 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd)
3564 {
3565         u32 cmd_id = ((u32 *) buf)[0];
3566
3567         if (cmd_id >= SVGA_CMD_MAX) {
3568                 SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
3569                 const struct vmw_cmd_entry *entry;
3570
3571                 *size = header->size + sizeof(SVGA3dCmdHeader);
3572                 cmd_id = header->id;
3573                 if (cmd_id >= SVGA_3D_CMD_MAX)
3574                         return false;
3575
3576                 cmd_id -= SVGA_3D_CMD_BASE;
3577                 entry = &vmw_cmd_entries[cmd_id];
3578                 *cmd = entry->cmd_name;
3579                 return true;
3580         }
3581
3582         switch (cmd_id) {
3583         case SVGA_CMD_UPDATE:
3584                 *cmd = "SVGA_CMD_UPDATE";
3585                 *size = sizeof(u32) + sizeof(SVGAFifoCmdUpdate);
3586                 break;
3587         case SVGA_CMD_DEFINE_GMRFB:
3588                 *cmd = "SVGA_CMD_DEFINE_GMRFB";
3589                 *size = sizeof(u32) + sizeof(SVGAFifoCmdDefineGMRFB);
3590                 break;
3591         case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
3592                 *cmd = "SVGA_CMD_BLIT_GMRFB_TO_SCREEN";
3593                 *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3594                 break;
3595         case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
3596                 *cmd = "SVGA_CMD_BLIT_SCREEN_TO_GMRFB";
3597                 *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
3598                 break;
3599         default:
3600                 *cmd = "UNKNOWN";
3601                 *size = 0;
3602                 return false;
3603         }
3604
3605         return true;
3606 }
3607
3608 static int vmw_cmd_check(struct vmw_private *dev_priv,
3609                          struct vmw_sw_context *sw_context, void *buf,
3610                          uint32_t *size)
3611 {
3612         uint32_t cmd_id;
3613         uint32_t size_remaining = *size;
3614         SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
3615         int ret;
3616         const struct vmw_cmd_entry *entry;
3617         bool gb = dev_priv->capabilities & SVGA_CAP_GBOBJECTS;
3618
3619         cmd_id = ((uint32_t *)buf)[0];
3620         /* Handle any none 3D commands */
3621         if (unlikely(cmd_id < SVGA_CMD_MAX))
3622                 return vmw_cmd_check_not_3d(dev_priv, sw_context, buf, size);
3623
3624
3625         cmd_id = header->id;
3626         *size = header->size + sizeof(SVGA3dCmdHeader);
3627
3628         cmd_id -= SVGA_3D_CMD_BASE;
3629         if (unlikely(*size > size_remaining))
3630                 goto out_invalid;
3631
3632         if (unlikely(cmd_id >= SVGA_3D_CMD_MAX - SVGA_3D_CMD_BASE))
3633                 goto out_invalid;
3634
3635         entry = &vmw_cmd_entries[cmd_id];
3636         if (unlikely(!entry->func))
3637                 goto out_invalid;
3638
3639         if (unlikely(!entry->user_allow && !sw_context->kernel))
3640                 goto out_privileged;
3641
3642         if (unlikely(entry->gb_disable && gb))
3643                 goto out_old;
3644
3645         if (unlikely(entry->gb_enable && !gb))
3646                 goto out_new;
3647
3648         ret = entry->func(dev_priv, sw_context, header);
3649         if (unlikely(ret != 0)) {
3650                 VMW_DEBUG_USER("SVGA3D command: %d failed with error %d\n",
3651                                cmd_id + SVGA_3D_CMD_BASE, ret);
3652                 return ret;
3653         }
3654
3655         return 0;
3656 out_invalid:
3657         VMW_DEBUG_USER("Invalid SVGA3D command: %d\n",
3658                        cmd_id + SVGA_3D_CMD_BASE);
3659         return -EINVAL;
3660 out_privileged:
3661         VMW_DEBUG_USER("Privileged SVGA3D command: %d\n",
3662                        cmd_id + SVGA_3D_CMD_BASE);
3663         return -EPERM;
3664 out_old:
3665         VMW_DEBUG_USER("Deprecated (disallowed) SVGA3D command: %d\n",
3666                        cmd_id + SVGA_3D_CMD_BASE);
3667         return -EINVAL;
3668 out_new:
3669         VMW_DEBUG_USER("SVGA3D command: %d not supported by virtual device.\n",
3670                        cmd_id + SVGA_3D_CMD_BASE);
3671         return -EINVAL;
3672 }
3673
3674 static int vmw_cmd_check_all(struct vmw_private *dev_priv,
3675                              struct vmw_sw_context *sw_context, void *buf,
3676                              uint32_t size)
3677 {
3678         int32_t cur_size = size;
3679         int ret;
3680
3681         sw_context->buf_start = buf;
3682
3683         while (cur_size > 0) {
3684                 size = cur_size;
3685                 ret = vmw_cmd_check(dev_priv, sw_context, buf, &size);
3686                 if (unlikely(ret != 0))
3687                         return ret;
3688                 buf = (void *)((unsigned long) buf + size);
3689                 cur_size -= size;
3690         }
3691
3692         if (unlikely(cur_size != 0)) {
3693                 VMW_DEBUG_USER("Command verifier out of sync.\n");
3694                 return -EINVAL;
3695         }
3696
3697         return 0;
3698 }
3699
3700 static void vmw_free_relocations(struct vmw_sw_context *sw_context)
3701 {
3702         /* Memory is validation context memory, so no need to free it */
3703         INIT_LIST_HEAD(&sw_context->bo_relocations);
3704 }
3705
3706 static void vmw_apply_relocations(struct vmw_sw_context *sw_context)
3707 {
3708         struct vmw_relocation *reloc;
3709         struct ttm_buffer_object *bo;
3710
3711         list_for_each_entry(reloc, &sw_context->bo_relocations, head) {
3712                 bo = &reloc->vbo->base;
3713                 switch (bo->resource->mem_type) {
3714                 case TTM_PL_VRAM:
3715                         reloc->location->offset += bo->resource->start << PAGE_SHIFT;
3716                         reloc->location->gmrId = SVGA_GMR_FRAMEBUFFER;
3717                         break;
3718                 case VMW_PL_GMR:
3719                         reloc->location->gmrId = bo->resource->start;
3720                         break;
3721                 case VMW_PL_MOB:
3722                         *reloc->mob_loc = bo->resource->start;
3723                         break;
3724                 default:
3725                         BUG();
3726                 }
3727         }
3728         vmw_free_relocations(sw_context);
3729 }
3730
3731 static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context,
3732                                  uint32_t size)
3733 {
3734         if (likely(sw_context->cmd_bounce_size >= size))
3735                 return 0;
3736
3737         if (sw_context->cmd_bounce_size == 0)
3738                 sw_context->cmd_bounce_size = VMWGFX_CMD_BOUNCE_INIT_SIZE;
3739
3740         while (sw_context->cmd_bounce_size < size) {
3741                 sw_context->cmd_bounce_size =
3742                         PAGE_ALIGN(sw_context->cmd_bounce_size +
3743                                    (sw_context->cmd_bounce_size >> 1));
3744         }
3745
3746         vfree(sw_context->cmd_bounce);
3747         sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size);
3748
3749         if (sw_context->cmd_bounce == NULL) {
3750                 VMW_DEBUG_USER("Failed to allocate command bounce buffer.\n");
3751                 sw_context->cmd_bounce_size = 0;
3752                 return -ENOMEM;
3753         }
3754
3755         return 0;
3756 }
3757
3758 /*
3759  * vmw_execbuf_fence_commands - create and submit a command stream fence
3760  *
3761  * Creates a fence object and submits a command stream marker.
3762  * If this fails for some reason, We sync the fifo and return NULL.
3763  * It is then safe to fence buffers with a NULL pointer.
3764  *
3765  * If @p_handle is not NULL @file_priv must also not be NULL. Creates a
3766  * userspace handle if @p_handle is not NULL, otherwise not.
3767  */
3768
3769 int vmw_execbuf_fence_commands(struct drm_file *file_priv,
3770                                struct vmw_private *dev_priv,
3771                                struct vmw_fence_obj **p_fence,
3772                                uint32_t *p_handle)
3773 {
3774         uint32_t sequence;
3775         int ret;
3776         bool synced = false;
3777
3778         /* p_handle implies file_priv. */
3779         BUG_ON(p_handle != NULL && file_priv == NULL);
3780
3781         ret = vmw_cmd_send_fence(dev_priv, &sequence);
3782         if (unlikely(ret != 0)) {
3783                 VMW_DEBUG_USER("Fence submission error. Syncing.\n");
3784                 synced = true;
3785         }
3786
3787         if (p_handle != NULL)
3788                 ret = vmw_user_fence_create(file_priv, dev_priv->fman,
3789                                             sequence, p_fence, p_handle);
3790         else
3791                 ret = vmw_fence_create(dev_priv->fman, sequence, p_fence);
3792
3793         if (unlikely(ret != 0 && !synced)) {
3794                 (void) vmw_fallback_wait(dev_priv, false, false, sequence,
3795                                          false, VMW_FENCE_WAIT_TIMEOUT);
3796                 *p_fence = NULL;
3797         }
3798
3799         return ret;
3800 }
3801
3802 /**
3803  * vmw_execbuf_copy_fence_user - copy fence object information to user-space.
3804  *
3805  * @dev_priv: Pointer to a vmw_private struct.
3806  * @vmw_fp: Pointer to the struct vmw_fpriv representing the calling file.
3807  * @ret: Return value from fence object creation.
3808  * @user_fence_rep: User space address of a struct drm_vmw_fence_rep to which
3809  * the information should be copied.
3810  * @fence: Pointer to the fenc object.
3811  * @fence_handle: User-space fence handle.
3812  * @out_fence_fd: exported file descriptor for the fence.  -1 if not used
3813  * @sync_file:  Only used to clean up in case of an error in this function.
3814  *
3815  * This function copies fence information to user-space. If copying fails, the
3816  * user-space struct drm_vmw_fence_rep::error member is hopefully left
3817  * untouched, and if it's preloaded with an -EFAULT by user-space, the error
3818  * will hopefully be detected.
3819  *
3820  * Also if copying fails, user-space will be unable to signal the fence object
3821  * so we wait for it immediately, and then unreference the user-space reference.
3822  */
3823 void
3824 vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
3825                             struct vmw_fpriv *vmw_fp, int ret,
3826                             struct drm_vmw_fence_rep __user *user_fence_rep,
3827                             struct vmw_fence_obj *fence, uint32_t fence_handle,
3828                             int32_t out_fence_fd, struct sync_file *sync_file)
3829 {
3830         struct drm_vmw_fence_rep fence_rep;
3831
3832         if (user_fence_rep == NULL)
3833                 return;
3834
3835         memset(&fence_rep, 0, sizeof(fence_rep));
3836
3837         fence_rep.error = ret;
3838         fence_rep.fd = out_fence_fd;
3839         if (ret == 0) {
3840                 BUG_ON(fence == NULL);
3841
3842                 fence_rep.handle = fence_handle;
3843                 fence_rep.seqno = fence->base.seqno;
3844                 vmw_update_seqno(dev_priv);
3845                 fence_rep.passed_seqno = dev_priv->last_read_seqno;
3846         }
3847
3848         /*
3849          * copy_to_user errors will be detected by user space not seeing
3850          * fence_rep::error filled in. Typically user-space would have pre-set
3851          * that member to -EFAULT.
3852          */
3853         ret = copy_to_user(user_fence_rep, &fence_rep,
3854                            sizeof(fence_rep));
3855
3856         /*
3857          * User-space lost the fence object. We need to sync and unreference the
3858          * handle.
3859          */
3860         if (unlikely(ret != 0) && (fence_rep.error == 0)) {
3861                 if (sync_file)
3862                         fput(sync_file->file);
3863
3864                 if (fence_rep.fd != -1) {
3865                         put_unused_fd(fence_rep.fd);
3866                         fence_rep.fd = -1;
3867                 }
3868
3869                 ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle,
3870                                           TTM_REF_USAGE);
3871                 VMW_DEBUG_USER("Fence copy error. Syncing.\n");
3872                 (void) vmw_fence_obj_wait(fence, false, false,
3873                                           VMW_FENCE_WAIT_TIMEOUT);
3874         }
3875 }
3876
3877 /**
3878  * vmw_execbuf_submit_fifo - Patch a command batch and submit it using the fifo.
3879  *
3880  * @dev_priv: Pointer to a device private structure.
3881  * @kernel_commands: Pointer to the unpatched command batch.
3882  * @command_size: Size of the unpatched command batch.
3883  * @sw_context: Structure holding the relocation lists.
3884  *
3885  * Side effects: If this function returns 0, then the command batch pointed to
3886  * by @kernel_commands will have been modified.
3887  */
3888 static int vmw_execbuf_submit_fifo(struct vmw_private *dev_priv,
3889                                    void *kernel_commands, u32 command_size,
3890                                    struct vmw_sw_context *sw_context)
3891 {
3892         void *cmd;
3893
3894         if (sw_context->dx_ctx_node)
3895                 cmd = VMW_CMD_CTX_RESERVE(dev_priv, command_size,
3896                                           sw_context->dx_ctx_node->ctx->id);
3897         else
3898                 cmd = VMW_CMD_RESERVE(dev_priv, command_size);
3899
3900         if (!cmd)
3901                 return -ENOMEM;
3902
3903         vmw_apply_relocations(sw_context);
3904         memcpy(cmd, kernel_commands, command_size);
3905         vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
3906         vmw_resource_relocations_free(&sw_context->res_relocations);
3907         vmw_cmd_commit(dev_priv, command_size);
3908
3909         return 0;
3910 }
3911
3912 /**
3913  * vmw_execbuf_submit_cmdbuf - Patch a command batch and submit it using the
3914  * command buffer manager.
3915  *
3916  * @dev_priv: Pointer to a device private structure.
3917  * @header: Opaque handle to the command buffer allocation.
3918  * @command_size: Size of the unpatched command batch.
3919  * @sw_context: Structure holding the relocation lists.
3920  *
3921  * Side effects: If this function returns 0, then the command buffer represented
3922  * by @header will have been modified.
3923  */
3924 static int vmw_execbuf_submit_cmdbuf(struct vmw_private *dev_priv,
3925                                      struct vmw_cmdbuf_header *header,
3926                                      u32 command_size,
3927                                      struct vmw_sw_context *sw_context)
3928 {
3929         u32 id = ((sw_context->dx_ctx_node) ? sw_context->dx_ctx_node->ctx->id :
3930                   SVGA3D_INVALID_ID);
3931         void *cmd = vmw_cmdbuf_reserve(dev_priv->cman, command_size, id, false,
3932                                        header);
3933
3934         vmw_apply_relocations(sw_context);
3935         vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
3936         vmw_resource_relocations_free(&sw_context->res_relocations);
3937         vmw_cmdbuf_commit(dev_priv->cman, command_size, header, false);
3938
3939         return 0;
3940 }
3941
3942 /**
3943  * vmw_execbuf_cmdbuf - Prepare, if possible, a user-space command batch for
3944  * submission using a command buffer.
3945  *
3946  * @dev_priv: Pointer to a device private structure.
3947  * @user_commands: User-space pointer to the commands to be submitted.
3948  * @command_size: Size of the unpatched command batch.
3949  * @header: Out parameter returning the opaque pointer to the command buffer.
3950  *
3951  * This function checks whether we can use the command buffer manager for
3952  * submission and if so, creates a command buffer of suitable size and copies
3953  * the user data into that buffer.
3954  *
3955  * On successful return, the function returns a pointer to the data in the
3956  * command buffer and *@header is set to non-NULL.
3957  *
3958  * @kernel_commands: If command buffers could not be used, the function will
3959  * return the value of @kernel_commands on function call. That value may be
3960  * NULL. In that case, the value of *@header will be set to NULL.
3961  *
3962  * If an error is encountered, the function will return a pointer error value.
3963  * If the function is interrupted by a signal while sleeping, it will return
3964  * -ERESTARTSYS casted to a pointer error value.
3965  */
3966 static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv,
3967                                 void __user *user_commands,
3968                                 void *kernel_commands, u32 command_size,
3969                                 struct vmw_cmdbuf_header **header)
3970 {
3971         size_t cmdbuf_size;
3972         int ret;
3973
3974         *header = NULL;
3975         if (command_size > SVGA_CB_MAX_SIZE) {
3976                 VMW_DEBUG_USER("Command buffer is too large.\n");
3977                 return ERR_PTR(-EINVAL);
3978         }
3979
3980         if (!dev_priv->cman || kernel_commands)
3981                 return kernel_commands;
3982
3983         /* If possible, add a little space for fencing. */
3984         cmdbuf_size = command_size + 512;
3985         cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
3986         kernel_commands = vmw_cmdbuf_alloc(dev_priv->cman, cmdbuf_size, true,
3987                                            header);
3988         if (IS_ERR(kernel_commands))
3989                 return kernel_commands;
3990
3991         ret = copy_from_user(kernel_commands, user_commands, command_size);
3992         if (ret) {
3993                 VMW_DEBUG_USER("Failed copying commands.\n");
3994                 vmw_cmdbuf_header_free(*header);
3995                 *header = NULL;
3996                 return ERR_PTR(-EFAULT);
3997         }
3998
3999         return kernel_commands;
4000 }
4001
4002 static int vmw_execbuf_tie_context(struct vmw_private *dev_priv,
4003                                    struct vmw_sw_context *sw_context,
4004                                    uint32_t handle)
4005 {
4006         struct vmw_resource *res;
4007         int ret;
4008         unsigned int size;
4009
4010         if (handle == SVGA3D_INVALID_ID)
4011                 return 0;
4012
4013         size = vmw_execbuf_res_size(dev_priv, vmw_res_dx_context);
4014         ret = vmw_validation_preload_res(sw_context->ctx, size);
4015         if (ret)
4016                 return ret;
4017
4018         res = vmw_user_resource_noref_lookup_handle
4019                 (dev_priv, sw_context->fp->tfile, handle,
4020                  user_context_converter);
4021         if (IS_ERR(res)) {
4022                 VMW_DEBUG_USER("Could not find or user DX context 0x%08x.\n",
4023                                (unsigned int) handle);
4024                 return PTR_ERR(res);
4025         }
4026
4027         ret = vmw_execbuf_res_noref_val_add(sw_context, res, VMW_RES_DIRTY_SET);
4028         if (unlikely(ret != 0))
4029                 return ret;
4030
4031         sw_context->dx_ctx_node = vmw_execbuf_info_from_res(sw_context, res);
4032         sw_context->man = vmw_context_res_man(res);
4033
4034         return 0;
4035 }
4036
4037 int vmw_execbuf_process(struct drm_file *file_priv,
4038                         struct vmw_private *dev_priv,
4039                         void __user *user_commands, void *kernel_commands,
4040                         uint32_t command_size, uint64_t throttle_us,
4041                         uint32_t dx_context_handle,
4042                         struct drm_vmw_fence_rep __user *user_fence_rep,
4043                         struct vmw_fence_obj **out_fence, uint32_t flags)
4044 {
4045         struct vmw_sw_context *sw_context = &dev_priv->ctx;
4046         struct vmw_fence_obj *fence = NULL;
4047         struct vmw_cmdbuf_header *header;
4048         uint32_t handle = 0;
4049         int ret;
4050         int32_t out_fence_fd = -1;
4051         struct sync_file *sync_file = NULL;
4052         DECLARE_VAL_CONTEXT(val_ctx, &sw_context->res_ht, 1);
4053
4054         vmw_validation_set_val_mem(&val_ctx, &dev_priv->vvm);
4055
4056         if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
4057                 out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
4058                 if (out_fence_fd < 0) {
4059                         VMW_DEBUG_USER("Failed to get a fence fd.\n");
4060                         return out_fence_fd;
4061                 }
4062         }
4063
4064         if (throttle_us) {
4065                 VMW_DEBUG_USER("Throttling is no longer supported.\n");
4066         }
4067
4068         kernel_commands = vmw_execbuf_cmdbuf(dev_priv, user_commands,
4069                                              kernel_commands, command_size,
4070                                              &header);
4071         if (IS_ERR(kernel_commands)) {
4072                 ret = PTR_ERR(kernel_commands);
4073                 goto out_free_fence_fd;
4074         }
4075
4076         ret = mutex_lock_interruptible(&dev_priv->cmdbuf_mutex);
4077         if (ret) {
4078                 ret = -ERESTARTSYS;
4079                 goto out_free_header;
4080         }
4081
4082         sw_context->kernel = false;
4083         if (kernel_commands == NULL) {
4084                 ret = vmw_resize_cmd_bounce(sw_context, command_size);
4085                 if (unlikely(ret != 0))
4086                         goto out_unlock;
4087
4088                 ret = copy_from_user(sw_context->cmd_bounce, user_commands,
4089                                      command_size);
4090                 if (unlikely(ret != 0)) {
4091                         ret = -EFAULT;
4092                         VMW_DEBUG_USER("Failed copying commands.\n");
4093                         goto out_unlock;
4094                 }
4095
4096                 kernel_commands = sw_context->cmd_bounce;
4097         } else if (!header) {
4098                 sw_context->kernel = true;
4099         }
4100
4101         sw_context->fp = vmw_fpriv(file_priv);
4102         INIT_LIST_HEAD(&sw_context->ctx_list);
4103         sw_context->cur_query_bo = dev_priv->pinned_bo;
4104         sw_context->last_query_ctx = NULL;
4105         sw_context->needs_post_query_barrier = false;
4106         sw_context->dx_ctx_node = NULL;
4107         sw_context->dx_query_mob = NULL;
4108         sw_context->dx_query_ctx = NULL;
4109         memset(sw_context->res_cache, 0, sizeof(sw_context->res_cache));
4110         INIT_LIST_HEAD(&sw_context->res_relocations);
4111         INIT_LIST_HEAD(&sw_context->bo_relocations);
4112
4113         if (sw_context->staged_bindings)
4114                 vmw_binding_state_reset(sw_context->staged_bindings);
4115
4116         if (!sw_context->res_ht_initialized) {
4117                 ret = drm_ht_create(&sw_context->res_ht, VMW_RES_HT_ORDER);
4118                 if (unlikely(ret != 0))
4119                         goto out_unlock;
4120
4121                 sw_context->res_ht_initialized = true;
4122         }
4123
4124         INIT_LIST_HEAD(&sw_context->staged_cmd_res);
4125         sw_context->ctx = &val_ctx;
4126         ret = vmw_execbuf_tie_context(dev_priv, sw_context, dx_context_handle);
4127         if (unlikely(ret != 0))
4128                 goto out_err_nores;
4129
4130         ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
4131                                 command_size);
4132         if (unlikely(ret != 0))
4133                 goto out_err_nores;
4134
4135         ret = vmw_resources_reserve(sw_context);
4136         if (unlikely(ret != 0))
4137                 goto out_err_nores;
4138
4139         ret = vmw_validation_bo_reserve(&val_ctx, true);
4140         if (unlikely(ret != 0))
4141                 goto out_err_nores;
4142
4143         ret = vmw_validation_bo_validate(&val_ctx, true);
4144         if (unlikely(ret != 0))
4145                 goto out_err;
4146
4147         ret = vmw_validation_res_validate(&val_ctx, true);
4148         if (unlikely(ret != 0))
4149                 goto out_err;
4150
4151         vmw_validation_drop_ht(&val_ctx);
4152
4153         ret = mutex_lock_interruptible(&dev_priv->binding_mutex);
4154         if (unlikely(ret != 0)) {
4155                 ret = -ERESTARTSYS;
4156                 goto out_err;
4157         }
4158
4159         if (dev_priv->has_mob) {
4160                 ret = vmw_rebind_contexts(sw_context);
4161                 if (unlikely(ret != 0))
4162                         goto out_unlock_binding;
4163         }
4164
4165         if (!header) {
4166                 ret = vmw_execbuf_submit_fifo(dev_priv, kernel_commands,
4167                                               command_size, sw_context);
4168         } else {
4169                 ret = vmw_execbuf_submit_cmdbuf(dev_priv, header, command_size,
4170                                                 sw_context);
4171                 header = NULL;
4172         }
4173         mutex_unlock(&dev_priv->binding_mutex);
4174         if (ret)
4175                 goto out_err;
4176
4177         vmw_query_bo_switch_commit(dev_priv, sw_context);
4178         ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
4179                                          (user_fence_rep) ? &handle : NULL);
4180         /*
4181          * This error is harmless, because if fence submission fails,
4182          * vmw_fifo_send_fence will sync. The error will be propagated to
4183          * user-space in @fence_rep
4184          */
4185         if (ret != 0)
4186                 VMW_DEBUG_USER("Fence submission error. Syncing.\n");
4187
4188         vmw_execbuf_bindings_commit(sw_context, false);
4189         vmw_bind_dx_query_mob(sw_context);
4190         vmw_validation_res_unreserve(&val_ctx, false);
4191
4192         vmw_validation_bo_fence(sw_context->ctx, fence);
4193
4194         if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
4195                 __vmw_execbuf_release_pinned_bo(dev_priv, fence);
4196
4197         /*
4198          * If anything fails here, give up trying to export the fence and do a
4199          * sync since the user mode will not be able to sync the fence itself.
4200          * This ensures we are still functionally correct.
4201          */
4202         if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
4203
4204                 sync_file = sync_file_create(&fence->base);
4205                 if (!sync_file) {
4206                         VMW_DEBUG_USER("Sync file create failed for fence\n");
4207                         put_unused_fd(out_fence_fd);
4208                         out_fence_fd = -1;
4209
4210                         (void) vmw_fence_obj_wait(fence, false, false,
4211                                                   VMW_FENCE_WAIT_TIMEOUT);
4212                 } else {
4213                         /* Link the fence with the FD created earlier */
4214                         fd_install(out_fence_fd, sync_file->file);
4215                 }
4216         }
4217
4218         vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
4219                                     user_fence_rep, fence, handle, out_fence_fd,
4220                                     sync_file);
4221
4222         /* Don't unreference when handing fence out */
4223         if (unlikely(out_fence != NULL)) {
4224                 *out_fence = fence;
4225                 fence = NULL;
4226         } else if (likely(fence != NULL)) {
4227                 vmw_fence_obj_unreference(&fence);
4228         }
4229
4230         vmw_cmdbuf_res_commit(&sw_context->staged_cmd_res);
4231         mutex_unlock(&dev_priv->cmdbuf_mutex);
4232
4233         /*
4234          * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
4235          * in resource destruction paths.
4236          */
4237         vmw_validation_unref_lists(&val_ctx);
4238
4239         return 0;
4240
4241 out_unlock_binding:
4242         mutex_unlock(&dev_priv->binding_mutex);
4243 out_err:
4244         vmw_validation_bo_backoff(&val_ctx);
4245 out_err_nores:
4246         vmw_execbuf_bindings_commit(sw_context, true);
4247         vmw_validation_res_unreserve(&val_ctx, true);
4248         vmw_resource_relocations_free(&sw_context->res_relocations);
4249         vmw_free_relocations(sw_context);
4250         if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
4251                 __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
4252 out_unlock:
4253         vmw_cmdbuf_res_revert(&sw_context->staged_cmd_res);
4254         vmw_validation_drop_ht(&val_ctx);
4255         WARN_ON(!list_empty(&sw_context->ctx_list));
4256         mutex_unlock(&dev_priv->cmdbuf_mutex);
4257
4258         /*
4259          * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
4260          * in resource destruction paths.
4261          */
4262         vmw_validation_unref_lists(&val_ctx);
4263 out_free_header:
4264         if (header)
4265                 vmw_cmdbuf_header_free(header);
4266 out_free_fence_fd:
4267         if (out_fence_fd >= 0)
4268                 put_unused_fd(out_fence_fd);
4269
4270         return ret;
4271 }
4272
4273 /**
4274  * vmw_execbuf_unpin_panic - Idle the fifo and unpin the query buffer.
4275  *
4276  * @dev_priv: The device private structure.
4277  *
4278  * This function is called to idle the fifo and unpin the query buffer if the
4279  * normal way to do this hits an error, which should typically be extremely
4280  * rare.
4281  */
4282 static void vmw_execbuf_unpin_panic(struct vmw_private *dev_priv)
4283 {
4284         VMW_DEBUG_USER("Can't unpin query buffer. Trying to recover.\n");
4285
4286         (void) vmw_fallback_wait(dev_priv, false, true, 0, false, 10*HZ);
4287         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
4288         if (dev_priv->dummy_query_bo_pinned) {
4289                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
4290                 dev_priv->dummy_query_bo_pinned = false;
4291         }
4292 }
4293
4294
4295 /**
4296  * __vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query
4297  * bo.
4298  *
4299  * @dev_priv: The device private structure.
4300  * @fence: If non-NULL should point to a struct vmw_fence_obj issued _after_ a
4301  * query barrier that flushes all queries touching the current buffer pointed to
4302  * by @dev_priv->pinned_bo
4303  *
4304  * This function should be used to unpin the pinned query bo, or as a query
4305  * barrier when we need to make sure that all queries have finished before the
4306  * next fifo command. (For example on hardware context destructions where the
4307  * hardware may otherwise leak unfinished queries).
4308  *
4309  * This function does not return any failure codes, but make attempts to do safe
4310  * unpinning in case of errors.
4311  *
4312  * The function will synchronize on the previous query barrier, and will thus
4313  * not finish until that barrier has executed.
4314  *
4315  * the @dev_priv->cmdbuf_mutex needs to be held by the current thread before
4316  * calling this function.
4317  */
4318 void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
4319                                      struct vmw_fence_obj *fence)
4320 {
4321         int ret = 0;
4322         struct vmw_fence_obj *lfence = NULL;
4323         DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
4324
4325         if (dev_priv->pinned_bo == NULL)
4326                 goto out_unlock;
4327
4328         ret = vmw_validation_add_bo(&val_ctx, dev_priv->pinned_bo, false,
4329                                     false);
4330         if (ret)
4331                 goto out_no_reserve;
4332
4333         ret = vmw_validation_add_bo(&val_ctx, dev_priv->dummy_query_bo, false,
4334                                     false);
4335         if (ret)
4336                 goto out_no_reserve;
4337
4338         ret = vmw_validation_bo_reserve(&val_ctx, false);
4339         if (ret)
4340                 goto out_no_reserve;
4341
4342         if (dev_priv->query_cid_valid) {
4343                 BUG_ON(fence != NULL);
4344                 ret = vmw_cmd_emit_dummy_query(dev_priv, dev_priv->query_cid);
4345                 if (ret)
4346                         goto out_no_emit;
4347                 dev_priv->query_cid_valid = false;
4348         }
4349
4350         vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
4351         if (dev_priv->dummy_query_bo_pinned) {
4352                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
4353                 dev_priv->dummy_query_bo_pinned = false;
4354         }
4355         if (fence == NULL) {
4356                 (void) vmw_execbuf_fence_commands(NULL, dev_priv, &lfence,
4357                                                   NULL);
4358                 fence = lfence;
4359         }
4360         vmw_validation_bo_fence(&val_ctx, fence);
4361         if (lfence != NULL)
4362                 vmw_fence_obj_unreference(&lfence);
4363
4364         vmw_validation_unref_lists(&val_ctx);
4365         vmw_bo_unreference(&dev_priv->pinned_bo);
4366
4367 out_unlock:
4368         return;
4369 out_no_emit:
4370         vmw_validation_bo_backoff(&val_ctx);
4371 out_no_reserve:
4372         vmw_validation_unref_lists(&val_ctx);
4373         vmw_execbuf_unpin_panic(dev_priv);
4374         vmw_bo_unreference(&dev_priv->pinned_bo);
4375 }
4376
4377 /**
4378  * vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query bo.
4379  *
4380  * @dev_priv: The device private structure.
4381  *
4382  * This function should be used to unpin the pinned query bo, or as a query
4383  * barrier when we need to make sure that all queries have finished before the
4384  * next fifo command. (For example on hardware context destructions where the
4385  * hardware may otherwise leak unfinished queries).
4386  *
4387  * This function does not return any failure codes, but make attempts to do safe
4388  * unpinning in case of errors.
4389  *
4390  * The function will synchronize on the previous query barrier, and will thus
4391  * not finish until that barrier has executed.
4392  */
4393 void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv)
4394 {
4395         mutex_lock(&dev_priv->cmdbuf_mutex);
4396         if (dev_priv->query_cid_valid)
4397                 __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
4398         mutex_unlock(&dev_priv->cmdbuf_mutex);
4399 }
4400
4401 int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
4402                       struct drm_file *file_priv)
4403 {
4404         struct vmw_private *dev_priv = vmw_priv(dev);
4405         struct drm_vmw_execbuf_arg *arg = data;
4406         int ret;
4407         struct dma_fence *in_fence = NULL;
4408
4409         /*
4410          * Extend the ioctl argument while maintaining backwards compatibility:
4411          * We take different code paths depending on the value of arg->version.
4412          *
4413          * Note: The ioctl argument is extended and zeropadded by core DRM.
4414          */
4415         if (unlikely(arg->version > DRM_VMW_EXECBUF_VERSION ||
4416                      arg->version == 0)) {
4417                 VMW_DEBUG_USER("Incorrect execbuf version.\n");
4418                 return -EINVAL;
4419         }
4420
4421         switch (arg->version) {
4422         case 1:
4423                 /* For v1 core DRM have extended + zeropadded the data */
4424                 arg->context_handle = (uint32_t) -1;
4425                 break;
4426         case 2:
4427         default:
4428                 /* For v2 and later core DRM would have correctly copied it */
4429                 break;
4430         }
4431
4432         /* If imported a fence FD from elsewhere, then wait on it */
4433         if (arg->flags & DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD) {
4434                 in_fence = sync_file_get_fence(arg->imported_fence_fd);
4435
4436                 if (!in_fence) {
4437                         VMW_DEBUG_USER("Cannot get imported fence\n");
4438                         return -EINVAL;
4439                 }
4440
4441                 ret = vmw_wait_dma_fence(dev_priv->fman, in_fence);
4442                 if (ret)
4443                         goto out;
4444         }
4445
4446         ret = vmw_execbuf_process(file_priv, dev_priv,
4447                                   (void __user *)(unsigned long)arg->commands,
4448                                   NULL, arg->command_size, arg->throttle_us,
4449                                   arg->context_handle,
4450                                   (void __user *)(unsigned long)arg->fence_rep,
4451                                   NULL, arg->flags);
4452
4453         if (unlikely(ret != 0))
4454                 goto out;
4455
4456         vmw_kms_cursor_post_execbuf(dev_priv);
4457
4458 out:
4459         if (in_fence)
4460                 dma_fence_put(in_fence);
4461         return ret;
4462 }