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 // SPDX-License-Identifier: GPL-2.0 OR MIT
 /**************************************************************************
  *
  * Copyright 2009 - 2015 VMware, Inc., Palo Alto, CA., USA
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
  **************************************************************************/
 #include <linux/sync_file.h>
 
 #include "vmwgfx_drv.h"
 #include "vmwgfx_reg.h"
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_placement.h>
 #include "vmwgfx_so.h"
 #include "vmwgfx_binding.h"
 #include "vmwgfx_mksstat.h"
 
 #define VMW_RES_HT_ORDER 12
 
 /*
  * Helper macro to get dx_ctx_node if available otherwise print an error
  * message. This is for use in command verifier function where if dx_ctx_node
  * is not set then command is invalid.
  */
 #define VMW_GET_CTX_NODE(__sw_context)                                        \
 ({                                                                            \
     __sw_context->dx_ctx_node ? __sw_context->dx_ctx_node : ({            \
         VMW_DEBUG_USER("SM context is not set at %s\n", __func__);    \
         __sw_context->dx_ctx_node;                                    \
     });                                                                   \
 })
 
 #define VMW_DECLARE_CMD_VAR(__var, __type)                                    \
     struct {                                                              \
         SVGA3dCmdHeader header;                                       \
         __type body;                                                  \
     } __var
 
 /**
  * struct vmw_relocation - Buffer object relocation
  *
  * @head: List head for the command submission context's relocation list
  * @vbo: Non ref-counted pointer to buffer object
  * @mob_loc: Pointer to location for mob id to be modified
  * @location: Pointer to location for guest pointer to be modified
  */
 struct vmw_relocation {
     struct list_head head;
     struct vmw_buffer_object *vbo;
     union {
         SVGAMobId *mob_loc;
         SVGAGuestPtr *location;
     };
 };
 
 /**
  * enum vmw_resource_relocation_type - Relocation type for resources
  *
  * @vmw_res_rel_normal: Traditional relocation. The resource id in the
  * command stream is replaced with the actual id after validation.
  * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced
  * with a NOP.
  * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id after
  * validation is -1, the command is replaced with a NOP. Otherwise no action.
  * @vmw_res_rel_max: Last value in the enum - used for error checking
 */
 enum vmw_resource_relocation_type {
     vmw_res_rel_normal,
     vmw_res_rel_nop,
     vmw_res_rel_cond_nop,
     vmw_res_rel_max
 };
 
 /**
  * struct vmw_resource_relocation - Relocation info for resources
  *
  * @head: List head for the software context's relocation list.
  * @res: Non-ref-counted pointer to the resource.
  * @offset: Offset of single byte entries into the command buffer where the id
  * that needs fixup is located.
  * @rel_type: Type of relocation.
  */
 struct vmw_resource_relocation {
     struct list_head head;
     const struct vmw_resource *res;
     u32 offset:29;
     enum vmw_resource_relocation_type rel_type:3;
 };
 
 /**
  * struct vmw_ctx_validation_info - Extra validation metadata for contexts
  *
  * @head: List head of context list
  * @ctx: The context resource
  * @cur: The context's persistent binding state
  * @staged: The binding state changes of this command buffer
  */
 struct vmw_ctx_validation_info {
     struct list_head head;
     struct vmw_resource *ctx;
     struct vmw_ctx_binding_state *cur;
     struct vmw_ctx_binding_state *staged;
 };
 
 /**
  * struct vmw_cmd_entry - Describe a command for the verifier
  *
  * @func: Call-back to handle the command.
  * @user_allow: Whether allowed from the execbuf ioctl.
  * @gb_disable: Whether disabled if guest-backed objects are available.
  * @gb_enable: Whether enabled iff guest-backed objects are available.
  * @cmd_name: Name of the command.
  */
 struct vmw_cmd_entry {
     int (*func) (struct vmw_private *, struct vmw_sw_context *,
              SVGA3dCmdHeader *);
     bool user_allow;
     bool gb_disable;
     bool gb_enable;
     const char *cmd_name;
 };
 
 #define VMW_CMD_DEF(_cmd, _func, _user_allow, _gb_disable, _gb_enable)  \
     [(_cmd) - SVGA_3D_CMD_BASE] = {(_func), (_user_allow),\
                        (_gb_disable), (_gb_enable), #_cmd}
 
 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     struct vmw_resource *ctx);
 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGAMobId *id,
                  struct vmw_buffer_object **vmw_bo_p);
 /**
  * vmw_ptr_diff - Compute the offset from a to b in bytes
  *
  * @a: A starting pointer.
  * @b: A pointer offset in the same address space.
  *
  * Returns: The offset in bytes between the two pointers.
  */
 static size_t vmw_ptr_diff(void *a, void *b)
 {
     return (unsigned long) b - (unsigned long) a;
 }
 
 /**
  * vmw_execbuf_bindings_commit - Commit modified binding state
  *
  * @sw_context: The command submission context
  * @backoff: Whether this is part of the error path and binding state changes
  * should be ignored
  */
 static void vmw_execbuf_bindings_commit(struct vmw_sw_context *sw_context,
                     bool backoff)
 {
     struct vmw_ctx_validation_info *entry;
 
     list_for_each_entry(entry, &sw_context->ctx_list, head) {
         if (!backoff)
             vmw_binding_state_commit(entry->cur, entry->staged);
 
         if (entry->staged != sw_context->staged_bindings)
             vmw_binding_state_free(entry->staged);
         else
             sw_context->staged_bindings_inuse = false;
     }
 
     /* List entries are freed with the validation context */
     INIT_LIST_HEAD(&sw_context->ctx_list);
 }
 
 /**
  * vmw_bind_dx_query_mob - Bind the DX query MOB if referenced
  *
  * @sw_context: The command submission context
  */
 static void vmw_bind_dx_query_mob(struct vmw_sw_context *sw_context)
 {
     if (sw_context->dx_query_mob)
         vmw_context_bind_dx_query(sw_context->dx_query_ctx,
                       sw_context->dx_query_mob);
 }
 
 /**
  * vmw_cmd_ctx_first_setup - Perform the setup needed when a context is added to
  * the validate list.
  *
  * @dev_priv: Pointer to the device private:
  * @sw_context: The command submission context
  * @res: Pointer to the resource
  * @node: The validation node holding the context resource metadata
  */
 static int vmw_cmd_ctx_first_setup(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    struct vmw_resource *res,
                    struct vmw_ctx_validation_info *node)
 {
     int ret;
 
     ret = vmw_resource_context_res_add(dev_priv, sw_context, res);
     if (unlikely(ret != 0))
         goto out_err;
 
     if (!sw_context->staged_bindings) {
         sw_context->staged_bindings = vmw_binding_state_alloc(dev_priv);
         if (IS_ERR(sw_context->staged_bindings)) {
             ret = PTR_ERR(sw_context->staged_bindings);
             sw_context->staged_bindings = NULL;
             goto out_err;
         }
     }
 
     if (sw_context->staged_bindings_inuse) {
         node->staged = vmw_binding_state_alloc(dev_priv);
         if (IS_ERR(node->staged)) {
             ret = PTR_ERR(node->staged);
             node->staged = NULL;
             goto out_err;
         }
     } else {
         node->staged = sw_context->staged_bindings;
         sw_context->staged_bindings_inuse = true;
     }
 
     node->ctx = res;
     node->cur = vmw_context_binding_state(res);
     list_add_tail(&node->head, &sw_context->ctx_list);
 
     return 0;
 
 out_err:
     return ret;
 }
 
 /**
  * vmw_execbuf_res_size - calculate extra size fore the resource validation node
  *
  * @dev_priv: Pointer to the device private struct.
  * @res_type: The resource type.
  *
  * Guest-backed contexts and DX contexts require extra size to store execbuf
  * private information in the validation node. Typically the binding manager
  * associated data structures.
  *
  * Returns: The extra size requirement based on resource type.
  */
 static unsigned int vmw_execbuf_res_size(struct vmw_private *dev_priv,
                      enum vmw_res_type res_type)
 {
     return (res_type == vmw_res_dx_context ||
         (res_type == vmw_res_context && dev_priv->has_mob)) ?
         sizeof(struct vmw_ctx_validation_info) : 0;
 }
 
 /**
  * vmw_execbuf_rcache_update - Update a resource-node cache entry
  *
  * @rcache: Pointer to the entry to update.
  * @res: Pointer to the resource.
  * @private: Pointer to the execbuf-private space in the resource validation
  * node.
  */
 static void vmw_execbuf_rcache_update(struct vmw_res_cache_entry *rcache,
                       struct vmw_resource *res,
                       void *private)
 {
     rcache->res = res;
     rcache->private = private;
     rcache->valid = 1;
     rcache->valid_handle = 0;
 }
 
 /**
  * vmw_execbuf_res_noref_val_add - Add a resource described by an unreferenced
  * rcu-protected pointer to the validation list.
  *
  * @sw_context: Pointer to the software context.
  * @res: Unreferenced rcu-protected pointer to the resource.
  * @dirty: Whether to change dirty status.
  *
  * Returns: 0 on success. Negative error code on failure. Typical error codes
  * are %-EINVAL on inconsistency and %-ESRCH if the resource was doomed.
  */
 static int vmw_execbuf_res_noref_val_add(struct vmw_sw_context *sw_context,
                      struct vmw_resource *res,
                      u32 dirty)
 {
     struct vmw_private *dev_priv = res->dev_priv;
     int ret;
     enum vmw_res_type res_type = vmw_res_type(res);
     struct vmw_res_cache_entry *rcache;
     struct vmw_ctx_validation_info *ctx_info;
     bool first_usage;
     unsigned int priv_size;
 
     rcache = &sw_context->res_cache[res_type];
     if (likely(rcache->valid && rcache->res == res)) {
         if (dirty)
             vmw_validation_res_set_dirty(sw_context->ctx,
                              rcache->private, dirty);
         vmw_user_resource_noref_release();
         return 0;
     }
 
     priv_size = vmw_execbuf_res_size(dev_priv, res_type);
     ret = vmw_validation_add_resource(sw_context->ctx, res, priv_size,
                       dirty, (void **)&ctx_info,
                       &first_usage);
     vmw_user_resource_noref_release();
     if (ret)
         return ret;
 
     if (priv_size && first_usage) {
         ret = vmw_cmd_ctx_first_setup(dev_priv, sw_context, res,
                           ctx_info);
         if (ret) {
             VMW_DEBUG_USER("Failed first usage context setup.\n");
             return ret;
         }
     }
 
     vmw_execbuf_rcache_update(rcache, res, ctx_info);
     return 0;
 }
 
 /**
  * vmw_execbuf_res_noctx_val_add - Add a non-context resource to the resource
  * validation list if it's not already on it
  *
  * @sw_context: Pointer to the software context.
  * @res: Pointer to the resource.
  * @dirty: Whether to change dirty status.
  *
  * Returns: Zero on success. Negative error code on failure.
  */
 static int vmw_execbuf_res_noctx_val_add(struct vmw_sw_context *sw_context,
                      struct vmw_resource *res,
                      u32 dirty)
 {
     struct vmw_res_cache_entry *rcache;
     enum vmw_res_type res_type = vmw_res_type(res);
     void *ptr;
     int ret;
 
     rcache = &sw_context->res_cache[res_type];
     if (likely(rcache->valid && rcache->res == res)) {
         if (dirty)
             vmw_validation_res_set_dirty(sw_context->ctx,
                              rcache->private, dirty);
         return 0;
     }
 
     ret = vmw_validation_add_resource(sw_context->ctx, res, 0, dirty,
                       &ptr, NULL);
     if (ret)
         return ret;
 
     vmw_execbuf_rcache_update(rcache, res, ptr);
 
     return 0;
 }
 
 /**
  * vmw_view_res_val_add - Add a view and the surface it's pointing to to the
  * validation list
  *
  * @sw_context: The software context holding the validation list.
  * @view: Pointer to the view resource.
  *
  * Returns 0 if success, negative error code otherwise.
  */
 static int vmw_view_res_val_add(struct vmw_sw_context *sw_context,
                 struct vmw_resource *view)
 {
     int ret;
 
     /*
      * First add the resource the view is pointing to, otherwise it may be
      * swapped out when the view is validated.
      */
     ret = vmw_execbuf_res_noctx_val_add(sw_context, vmw_view_srf(view),
                         vmw_view_dirtying(view));
     if (ret)
         return ret;
 
     return vmw_execbuf_res_noctx_val_add(sw_context, view,
                          VMW_RES_DIRTY_NONE);
 }
 
 /**
  * vmw_view_id_val_add - Look up a view and add it and the surface it's pointing
  * to to the validation list.
  *
  * @sw_context: The software context holding the validation list.
  * @view_type: The view type to look up.
  * @id: view id of the view.
  *
  * The view is represented by a view id and the DX context it's created on, or
  * scheduled for creation on. If there is no DX context set, the function will
  * return an -EINVAL error pointer.
  *
  * Returns: Unreferenced pointer to the resource on success, negative error
  * pointer on failure.
  */
 static struct vmw_resource *
 vmw_view_id_val_add(struct vmw_sw_context *sw_context,
             enum vmw_view_type view_type, u32 id)
 {
     struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
     struct vmw_resource *view;
     int ret;
 
     if (!ctx_node)
         return ERR_PTR(-EINVAL);
 
     view = vmw_view_lookup(sw_context->man, view_type, id);
     if (IS_ERR(view))
         return view;
 
     ret = vmw_view_res_val_add(sw_context, view);
     if (ret)
         return ERR_PTR(ret);
 
     return view;
 }
 
 /**
  * vmw_resource_context_res_add - Put resources previously bound to a context on
  * the validation list
  *
  * @dev_priv: Pointer to a device private structure
  * @sw_context: Pointer to a software context used for this command submission
  * @ctx: Pointer to the context resource
  *
  * This function puts all resources that were previously bound to @ctx on the
  * resource validation list. This is part of the context state reemission
  */
 static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     struct vmw_resource *ctx)
 {
     struct list_head *binding_list;
     struct vmw_ctx_bindinfo *entry;
     int ret = 0;
     struct vmw_resource *res;
     u32 i;
     u32 cotable_max = has_sm5_context(ctx->dev_priv) ?
         SVGA_COTABLE_MAX : SVGA_COTABLE_DX10_MAX;
 
     /* Add all cotables to the validation list. */
     if (has_sm4_context(dev_priv) &&
         vmw_res_type(ctx) == vmw_res_dx_context) {
         for (i = 0; i < cotable_max; ++i) {
             res = vmw_context_cotable(ctx, i);
             if (IS_ERR(res))
                 continue;
 
             ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                                 VMW_RES_DIRTY_SET);
             if (unlikely(ret != 0))
                 return ret;
         }
     }
 
     /* Add all resources bound to the context to the validation list */
     mutex_lock(&dev_priv->binding_mutex);
     binding_list = vmw_context_binding_list(ctx);
 
     list_for_each_entry(entry, binding_list, ctx_list) {
         if (vmw_res_type(entry->res) == vmw_res_view)
             ret = vmw_view_res_val_add(sw_context, entry->res);
         else
             ret = vmw_execbuf_res_noctx_val_add
                 (sw_context, entry->res,
                  vmw_binding_dirtying(entry->bt));
         if (unlikely(ret != 0))
             break;
     }
 
     if (has_sm4_context(dev_priv) &&
         vmw_res_type(ctx) == vmw_res_dx_context) {
         struct vmw_buffer_object *dx_query_mob;
 
         dx_query_mob = vmw_context_get_dx_query_mob(ctx);
         if (dx_query_mob)
             ret = vmw_validation_add_bo(sw_context->ctx,
                             dx_query_mob, true, false);
     }
 
     mutex_unlock(&dev_priv->binding_mutex);
     return ret;
 }
 
 /**
  * vmw_resource_relocation_add - Add a relocation to the relocation list
  *
  * @sw_context: Pointer to the software context.
  * @res: The resource.
  * @offset: Offset into the command buffer currently being parsed where the id
  * that needs fixup is located. Granularity is one byte.
  * @rel_type: Relocation type.
  */
 static int vmw_resource_relocation_add(struct vmw_sw_context *sw_context,
                        const struct vmw_resource *res,
                        unsigned long offset,
                        enum vmw_resource_relocation_type
                        rel_type)
 {
     struct vmw_resource_relocation *rel;
 
     rel = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*rel));
     if (unlikely(!rel)) {
         VMW_DEBUG_USER("Failed to allocate a resource relocation.\n");
         return -ENOMEM;
     }
 
     rel->res = res;
     rel->offset = offset;
     rel->rel_type = rel_type;
     list_add_tail(&rel->head, &sw_context->res_relocations);
 
     return 0;
 }
 
 /**
  * vmw_resource_relocations_free - Free all relocations on a list
  *
  * @list: Pointer to the head of the relocation list
  */
 static void vmw_resource_relocations_free(struct list_head *list)
 {
     /* Memory is validation context memory, so no need to free it */
     INIT_LIST_HEAD(list);
 }
 
 /**
  * vmw_resource_relocations_apply - Apply all relocations on a list
  *
  * @cb: Pointer to the start of the command buffer bein patch. This need not be
  * the same buffer as the one being parsed when the relocation list was built,
  * but the contents must be the same modulo the resource ids.
  * @list: Pointer to the head of the relocation list.
  */
 static void vmw_resource_relocations_apply(uint32_t *cb,
                        struct list_head *list)
 {
     struct vmw_resource_relocation *rel;
 
     /* Validate the struct vmw_resource_relocation member size */
     BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29));
     BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3));
 
     list_for_each_entry(rel, list, head) {
         u32 *addr = (u32 *)((unsigned long) cb + rel->offset);
         switch (rel->rel_type) {
         case vmw_res_rel_normal:
             *addr = rel->res->id;
             break;
         case vmw_res_rel_nop:
             *addr = SVGA_3D_CMD_NOP;
             break;
         default:
             if (rel->res->id == -1)
                 *addr = SVGA_3D_CMD_NOP;
             break;
         }
     }
 }
 
 static int vmw_cmd_invalid(struct vmw_private *dev_priv,
                struct vmw_sw_context *sw_context,
                SVGA3dCmdHeader *header)
 {
     return -EINVAL;
 }
 
 static int vmw_cmd_ok(struct vmw_private *dev_priv,
               struct vmw_sw_context *sw_context,
               SVGA3dCmdHeader *header)
 {
     return 0;
 }
 
 /**
  * vmw_resources_reserve - Reserve all resources on the sw_context's resource
  * list.
  *
  * @sw_context: Pointer to the software context.
  *
  * Note that since vmware's command submission currently is protected by the
  * cmdbuf mutex, no fancy deadlock avoidance is required for resources, since
  * only a single thread at once will attempt this.
  */
 static int vmw_resources_reserve(struct vmw_sw_context *sw_context)
 {
     int ret;
 
     ret = vmw_validation_res_reserve(sw_context->ctx, true);
     if (ret)
         return ret;
 
     if (sw_context->dx_query_mob) {
         struct vmw_buffer_object *expected_dx_query_mob;
 
         expected_dx_query_mob =
             vmw_context_get_dx_query_mob(sw_context->dx_query_ctx);
         if (expected_dx_query_mob &&
             expected_dx_query_mob != sw_context->dx_query_mob) {
             ret = -EINVAL;
         }
     }
 
     return ret;
 }
 
 /**
  * vmw_cmd_res_check - Check that a resource is present and if so, put it on the
  * resource validate list unless it's already there.
  *
  * @dev_priv: Pointer to a device private structure.
  * @sw_context: Pointer to the software context.
  * @res_type: Resource type.
  * @dirty: Whether to change dirty status.
  * @converter: User-space visisble type specific information.
  * @id_loc: Pointer to the location in the command buffer currently being parsed
  * from where the user-space resource id handle is located.
  * @p_res: Pointer to pointer to resource validalidation node. Populated on
  * exit.
  */
 static int
 vmw_cmd_res_check(struct vmw_private *dev_priv,
           struct vmw_sw_context *sw_context,
           enum vmw_res_type res_type,
           u32 dirty,
           const struct vmw_user_resource_conv *converter,
           uint32_t *id_loc,
           struct vmw_resource **p_res)
 {
     struct vmw_res_cache_entry *rcache = &sw_context->res_cache[res_type];
     struct vmw_resource *res;
     int ret;
 
     if (p_res)
         *p_res = NULL;
 
     if (*id_loc == SVGA3D_INVALID_ID) {
         if (res_type == vmw_res_context) {
             VMW_DEBUG_USER("Illegal context invalid id.\n");
             return -EINVAL;
         }
         return 0;
     }
 
     if (likely(rcache->valid_handle && *id_loc == rcache->handle)) {
         res = rcache->res;
         if (dirty)
             vmw_validation_res_set_dirty(sw_context->ctx,
                              rcache->private, dirty);
     } else {
         unsigned int size = vmw_execbuf_res_size(dev_priv, res_type);
 
         ret = vmw_validation_preload_res(sw_context->ctx, size);
         if (ret)
             return ret;
 
         res = vmw_user_resource_noref_lookup_handle
             (dev_priv, sw_context->fp->tfile, *id_loc, converter);
         if (IS_ERR(res)) {
             VMW_DEBUG_USER("Could not find/use resource 0x%08x.\n",
                        (unsigned int) *id_loc);
             return PTR_ERR(res);
         }
 
         ret = vmw_execbuf_res_noref_val_add(sw_context, res, dirty);
         if (unlikely(ret != 0))
             return ret;
 
         if (rcache->valid && rcache->res == res) {
             rcache->valid_handle = true;
             rcache->handle = *id_loc;
         }
     }
 
     ret = vmw_resource_relocation_add(sw_context, res,
                       vmw_ptr_diff(sw_context->buf_start,
                                id_loc),
                       vmw_res_rel_normal);
     if (p_res)
         *p_res = res;
 
     return 0;
 }
 
 /**
  * vmw_rebind_all_dx_query - Rebind DX query associated with the context
  *
  * @ctx_res: context the query belongs to
  *
  * This function assumes binding_mutex is held.
  */
 static int vmw_rebind_all_dx_query(struct vmw_resource *ctx_res)
 {
     struct vmw_private *dev_priv = ctx_res->dev_priv;
     struct vmw_buffer_object *dx_query_mob;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindAllQuery);
 
     dx_query_mob = vmw_context_get_dx_query_mob(ctx_res);
 
     if (!dx_query_mob || dx_query_mob->dx_query_ctx)
         return 0;
 
     cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof(*cmd), ctx_res->id);
     if (cmd == NULL)
         return -ENOMEM;
 
     cmd->header.id = SVGA_3D_CMD_DX_BIND_ALL_QUERY;
     cmd->header.size = sizeof(cmd->body);
     cmd->body.cid = ctx_res->id;
     cmd->body.mobid = dx_query_mob->base.resource->start;
     vmw_cmd_commit(dev_priv, sizeof(*cmd));
 
     vmw_context_bind_dx_query(ctx_res, dx_query_mob);
 
     return 0;
 }
 
 /**
  * vmw_rebind_contexts - Rebind all resources previously bound to referenced
  * contexts.
  *
  * @sw_context: Pointer to the software context.
  *
  * Rebind context binding points that have been scrubbed because of eviction.
  */
 static int vmw_rebind_contexts(struct vmw_sw_context *sw_context)
 {
     struct vmw_ctx_validation_info *val;
     int ret;
 
     list_for_each_entry(val, &sw_context->ctx_list, head) {
         ret = vmw_binding_rebind_all(val->cur);
         if (unlikely(ret != 0)) {
             if (ret != -ERESTARTSYS)
                 VMW_DEBUG_USER("Failed to rebind context.\n");
             return ret;
         }
 
         ret = vmw_rebind_all_dx_query(val->ctx);
         if (ret != 0) {
             VMW_DEBUG_USER("Failed to rebind queries.\n");
             return ret;
         }
     }
 
     return 0;
 }
 
 /**
  * vmw_view_bindings_add - Add an array of view bindings to a context binding
  * state tracker.
  *
  * @sw_context: The execbuf state used for this command.
  * @view_type: View type for the bindings.
  * @binding_type: Binding type for the bindings.
  * @shader_slot: The shader slot to user for the bindings.
  * @view_ids: Array of view ids to be bound.
  * @num_views: Number of view ids in @view_ids.
  * @first_slot: The binding slot to be used for the first view id in @view_ids.
  */
 static int vmw_view_bindings_add(struct vmw_sw_context *sw_context,
                  enum vmw_view_type view_type,
                  enum vmw_ctx_binding_type binding_type,
                  uint32 shader_slot,
                  uint32 view_ids[], u32 num_views,
                  u32 first_slot)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     u32 i;
 
     if (!ctx_node)
         return -EINVAL;
 
     for (i = 0; i < num_views; ++i) {
         struct vmw_ctx_bindinfo_view binding;
         struct vmw_resource *view = NULL;
 
         if (view_ids[i] != SVGA3D_INVALID_ID) {
             view = vmw_view_id_val_add(sw_context, view_type,
                            view_ids[i]);
             if (IS_ERR(view)) {
                 VMW_DEBUG_USER("View not found.\n");
                 return PTR_ERR(view);
             }
         }
         binding.bi.ctx = ctx_node->ctx;
         binding.bi.res = view;
         binding.bi.bt = binding_type;
         binding.shader_slot = shader_slot;
         binding.slot = first_slot + i;
         vmw_binding_add(ctx_node->staged, &binding.bi,
                 shader_slot, binding.slot);
     }
 
     return 0;
 }
 
 /**
  * vmw_cmd_cid_check - Check a command header for valid context information.
  *
  * @dev_priv: Pointer to a device private structure.
  * @sw_context: Pointer to the software context.
  * @header: A command header with an embedded user-space context handle.
  *
  * Convenience function: Call vmw_cmd_res_check with the user-space context
  * handle embedded in @header.
  */
 static int vmw_cmd_cid_check(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, uint32_t) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                  VMW_RES_DIRTY_SET, user_context_converter,
                  &cmd->body, NULL);
 }
 
 /**
  * vmw_execbuf_info_from_res - Get the private validation metadata for a
  * recently validated resource
  *
  * @sw_context: Pointer to the command submission context
  * @res: The resource
  *
  * The resource pointed to by @res needs to be present in the command submission
  * context's resource cache and hence the last resource of that type to be
  * processed by the validation code.
  *
  * Return: a pointer to the private metadata of the resource, or NULL if it
  * wasn't found
  */
 static struct vmw_ctx_validation_info *
 vmw_execbuf_info_from_res(struct vmw_sw_context *sw_context,
               struct vmw_resource *res)
 {
     struct vmw_res_cache_entry *rcache =
         &sw_context->res_cache[vmw_res_type(res)];
 
     if (rcache->valid && rcache->res == res)
         return rcache->private;
 
     WARN_ON_ONCE(true);
     return NULL;
 }
 
 static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetRenderTarget);
     struct vmw_resource *ctx;
     struct vmw_resource *res;
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     if (cmd->body.type >= SVGA3D_RT_MAX) {
         VMW_DEBUG_USER("Illegal render target type %u.\n",
                    (unsigned int) cmd->body.type);
         return -EINVAL;
     }
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, &ctx);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_SET, user_surface_converter,
                 &cmd->body.target.sid, &res);
     if (unlikely(ret))
         return ret;
 
     if (dev_priv->has_mob) {
         struct vmw_ctx_bindinfo_view binding;
         struct vmw_ctx_validation_info *node;
 
         node = vmw_execbuf_info_from_res(sw_context, ctx);
         if (!node)
             return -EINVAL;
 
         binding.bi.ctx = ctx;
         binding.bi.res = res;
         binding.bi.bt = vmw_ctx_binding_rt;
         binding.slot = cmd->body.type;
         vmw_binding_add(node->staged, &binding.bi, 0, binding.slot);
     }
 
     return 0;
 }
 
 static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceCopy);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.src.sid, NULL);
     if (ret)
         return ret;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.dest.sid, NULL);
 }
 
 static int vmw_cmd_buffer_copy_check(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBufferCopy);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.src, NULL);
     if (ret != 0)
         return ret;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.dest, NULL);
 }
 
 static int vmw_cmd_pred_copy_check(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXPredCopyRegion);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.srcSid, NULL);
     if (ret != 0)
         return ret;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.dstSid, NULL);
 }
 
 static int vmw_cmd_stretch_blt_check(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceStretchBlt);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.src.sid, NULL);
     if (unlikely(ret != 0))
         return ret;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.dest.sid, NULL);
 }
 
 static int vmw_cmd_blt_surf_screen_check(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBlitSurfaceToScreen) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.srcImage.sid, NULL);
 }
 
 static int vmw_cmd_present_check(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdPresent) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.sid, NULL);
 }
 
 /**
  * vmw_query_bo_switch_prepare - Prepare to switch pinned buffer for queries.
  *
  * @dev_priv: The device private structure.
  * @new_query_bo: The new buffer holding query results.
  * @sw_context: The software context used for this command submission.
  *
  * This function checks whether @new_query_bo is suitable for holding query
  * results, and if another buffer currently is pinned for query results. If so,
  * the function prepares the state of @sw_context for switching pinned buffers
  * after successful submission of the current command batch.
  */
 static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
                        struct vmw_buffer_object *new_query_bo,
                        struct vmw_sw_context *sw_context)
 {
     struct vmw_res_cache_entry *ctx_entry =
         &sw_context->res_cache[vmw_res_context];
     int ret;
 
     BUG_ON(!ctx_entry->valid);
     sw_context->last_query_ctx = ctx_entry->res;
 
     if (unlikely(new_query_bo != sw_context->cur_query_bo)) {
 
         if (unlikely(new_query_bo->base.resource->num_pages > 4)) {
             VMW_DEBUG_USER("Query buffer too large.\n");
             return -EINVAL;
         }
 
         if (unlikely(sw_context->cur_query_bo != NULL)) {
             sw_context->needs_post_query_barrier = true;
             ret = vmw_validation_add_bo(sw_context->ctx,
                             sw_context->cur_query_bo,
                             dev_priv->has_mob, false);
             if (unlikely(ret != 0))
                 return ret;
         }
         sw_context->cur_query_bo = new_query_bo;
 
         ret = vmw_validation_add_bo(sw_context->ctx,
                         dev_priv->dummy_query_bo,
                         dev_priv->has_mob, false);
         if (unlikely(ret != 0))
             return ret;
     }
 
     return 0;
 }
 
 /**
  * vmw_query_bo_switch_commit - Finalize switching pinned query buffer
  *
  * @dev_priv: The device private structure.
  * @sw_context: The software context used for this command submission batch.
  *
  * This function will check if we're switching query buffers, and will then,
  * issue a dummy occlusion query wait used as a query barrier. When the fence
  * object following that query wait has signaled, we are sure that all preceding
  * queries have finished, and the old query buffer can be unpinned. However,
  * since both the new query buffer and the old one are fenced with that fence,
  * we can do an asynchronus unpin now, and be sure that the old query buffer
  * won't be moved until the fence has signaled.
  *
  * As mentioned above, both the new - and old query buffers need to be fenced
  * using a sequence emitted *after* calling this function.
  */
 static void vmw_query_bo_switch_commit(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context)
 {
     /*
      * The validate list should still hold references to all
      * contexts here.
      */
     if (sw_context->needs_post_query_barrier) {
         struct vmw_res_cache_entry *ctx_entry =
             &sw_context->res_cache[vmw_res_context];
         struct vmw_resource *ctx;
         int ret;
 
         BUG_ON(!ctx_entry->valid);
         ctx = ctx_entry->res;
 
         ret = vmw_cmd_emit_dummy_query(dev_priv, ctx->id);
 
         if (unlikely(ret != 0))
             VMW_DEBUG_USER("Out of fifo space for dummy query.\n");
     }
 
     if (dev_priv->pinned_bo != sw_context->cur_query_bo) {
         if (dev_priv->pinned_bo) {
             vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
             vmw_bo_unreference(&dev_priv->pinned_bo);
         }
 
         if (!sw_context->needs_post_query_barrier) {
             vmw_bo_pin_reserved(sw_context->cur_query_bo, true);
 
             /*
              * We pin also the dummy_query_bo buffer so that we
              * don't need to validate it when emitting dummy queries
              * in context destroy paths.
              */
             if (!dev_priv->dummy_query_bo_pinned) {
                 vmw_bo_pin_reserved(dev_priv->dummy_query_bo,
                             true);
                 dev_priv->dummy_query_bo_pinned = true;
             }
 
             BUG_ON(sw_context->last_query_ctx == NULL);
             dev_priv->query_cid = sw_context->last_query_ctx->id;
             dev_priv->query_cid_valid = true;
             dev_priv->pinned_bo =
                 vmw_bo_reference(sw_context->cur_query_bo);
         }
     }
 }
 
 /**
  * vmw_translate_mob_ptr - Prepare to translate a user-space buffer handle
  * to a MOB id.
  *
  * @dev_priv: Pointer to a device private structure.
  * @sw_context: The software context used for this command batch validation.
  * @id: Pointer to the user-space handle to be translated.
  * @vmw_bo_p: Points to a location that, on successful return will carry a
  * non-reference-counted pointer to the buffer object identified by the
  * user-space handle in @id.
  *
  * This function saves information needed to translate a user-space buffer
  * handle to a MOB id. The translation does not take place immediately, but
  * during a call to vmw_apply_relocations().
  *
  * This function builds a relocation list and a list of buffers to validate. The
  * former needs to be freed using either vmw_apply_relocations() or
  * vmw_free_relocations(). The latter needs to be freed using
  * vmw_clear_validations.
  */
 static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGAMobId *id,
                  struct vmw_buffer_object **vmw_bo_p)
 {
     struct vmw_buffer_object *vmw_bo;
     uint32_t handle = *id;
     struct vmw_relocation *reloc;
     int ret;
 
     vmw_validation_preload_bo(sw_context->ctx);
     vmw_bo = vmw_user_bo_noref_lookup(sw_context->filp, handle);
     if (IS_ERR_OR_NULL(vmw_bo)) {
         VMW_DEBUG_USER("Could not find or use MOB buffer.\n");
         return PTR_ERR(vmw_bo);
     }
     ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, true, false);
     ttm_bo_put(&vmw_bo->base);
     if (unlikely(ret != 0))
         return ret;
 
     reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
     if (!reloc)
         return -ENOMEM;
 
     reloc->mob_loc = id;
     reloc->vbo = vmw_bo;
 
     *vmw_bo_p = vmw_bo;
     list_add_tail(&reloc->head, &sw_context->bo_relocations);
 
     return 0;
 }
 
 /**
  * vmw_translate_guest_ptr - Prepare to translate a user-space buffer handle
  * to a valid SVGAGuestPtr
  *
  * @dev_priv: Pointer to a device private structure.
  * @sw_context: The software context used for this command batch validation.
  * @ptr: Pointer to the user-space handle to be translated.
  * @vmw_bo_p: Points to a location that, on successful return will carry a
  * non-reference-counted pointer to the DMA buffer identified by the user-space
  * handle in @id.
  *
  * This function saves information needed to translate a user-space buffer
  * handle to a valid SVGAGuestPtr. The translation does not take place
  * immediately, but during a call to vmw_apply_relocations().
  *
  * This function builds a relocation list and a list of buffers to validate.
  * The former needs to be freed using either vmw_apply_relocations() or
  * vmw_free_relocations(). The latter needs to be freed using
  * vmw_clear_validations.
  */
 static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGAGuestPtr *ptr,
                    struct vmw_buffer_object **vmw_bo_p)
 {
     struct vmw_buffer_object *vmw_bo;
     uint32_t handle = ptr->gmrId;
     struct vmw_relocation *reloc;
     int ret;
 
     vmw_validation_preload_bo(sw_context->ctx);
     vmw_bo = vmw_user_bo_noref_lookup(sw_context->filp, handle);
     if (IS_ERR_OR_NULL(vmw_bo)) {
         VMW_DEBUG_USER("Could not find or use GMR region.\n");
         return PTR_ERR(vmw_bo);
     }
     ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, false, false);
     ttm_bo_put(&vmw_bo->base);
     if (unlikely(ret != 0))
         return ret;
 
     reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
     if (!reloc)
         return -ENOMEM;
 
     reloc->location = ptr;
     reloc->vbo = vmw_bo;
     *vmw_bo_p = vmw_bo;
     list_add_tail(&reloc->head, &sw_context->bo_relocations);
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_define_query - validate SVGA_3D_CMD_DX_DEFINE_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  *
  * This function adds the new query into the query COTABLE
  */
 static int vmw_cmd_dx_define_query(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineQuery);
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_resource *cotable_res;
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     if (cmd->body.type <  SVGA3D_QUERYTYPE_MIN ||
         cmd->body.type >= SVGA3D_QUERYTYPE_MAX)
         return -EINVAL;
 
     cotable_res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXQUERY);
     ret = vmw_cotable_notify(cotable_res, cmd->body.queryId);
 
     return ret;
 }
 
 /**
  * vmw_cmd_dx_bind_query - validate SVGA_3D_CMD_DX_BIND_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  *
  * The query bind operation will eventually associate the query ID with its
  * backing MOB.  In this function, we take the user mode MOB ID and use
  * vmw_translate_mob_ptr() to translate it to its kernel mode equivalent.
  */
 static int vmw_cmd_dx_bind_query(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindQuery);
     struct vmw_buffer_object *vmw_bo;
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     /*
      * Look up the buffer pointed to by q.mobid, put it on the relocation
      * list so its kernel mode MOB ID can be filled in later
      */
     ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
                     &vmw_bo);
 
     if (ret != 0)
         return ret;
 
     sw_context->dx_query_mob = vmw_bo;
     sw_context->dx_query_ctx = sw_context->dx_ctx_node->ctx;
     return 0;
 }
 
 /**
  * vmw_cmd_begin_gb_query - validate SVGA_3D_CMD_BEGIN_GB_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_begin_gb_query(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginGBQuery) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                  VMW_RES_DIRTY_SET, user_context_converter,
                  &cmd->body.cid, NULL);
 }
 
 /**
  * vmw_cmd_begin_query - validate SVGA_3D_CMD_BEGIN_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_begin_query(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginQuery) =
         container_of(header, typeof(*cmd), header);
 
     if (unlikely(dev_priv->has_mob)) {
         VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdBeginGBQuery);
 
         BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
 
         gb_cmd.header.id = SVGA_3D_CMD_BEGIN_GB_QUERY;
         gb_cmd.header.size = cmd->header.size;
         gb_cmd.body.cid = cmd->body.cid;
         gb_cmd.body.type = cmd->body.type;
 
         memcpy(cmd, &gb_cmd, sizeof(*cmd));
         return vmw_cmd_begin_gb_query(dev_priv, sw_context, header);
     }
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                  VMW_RES_DIRTY_SET, user_context_converter,
                  &cmd->body.cid, NULL);
 }
 
 /**
  * vmw_cmd_end_gb_query - validate SVGA_3D_CMD_END_GB_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_end_gb_query(struct vmw_private *dev_priv,
                 struct vmw_sw_context *sw_context,
                 SVGA3dCmdHeader *header)
 {
     struct vmw_buffer_object *vmw_bo;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndGBQuery);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
                     &vmw_bo);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
 
     return ret;
 }
 
 /**
  * vmw_cmd_end_query - validate SVGA_3D_CMD_END_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_end_query(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     struct vmw_buffer_object *vmw_bo;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndQuery);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     if (dev_priv->has_mob) {
         VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdEndGBQuery);
 
         BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
 
         gb_cmd.header.id = SVGA_3D_CMD_END_GB_QUERY;
         gb_cmd.header.size = cmd->header.size;
         gb_cmd.body.cid = cmd->body.cid;
         gb_cmd.body.type = cmd->body.type;
         gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
         gb_cmd.body.offset = cmd->body.guestResult.offset;
 
         memcpy(cmd, &gb_cmd, sizeof(*cmd));
         return vmw_cmd_end_gb_query(dev_priv, sw_context, header);
     }
 
     ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_translate_guest_ptr(dev_priv, sw_context,
                       &cmd->body.guestResult, &vmw_bo);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
 
     return ret;
 }
 
 /**
  * vmw_cmd_wait_gb_query - validate SVGA_3D_CMD_WAIT_GB_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_wait_gb_query(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     struct vmw_buffer_object *vmw_bo;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForGBQuery);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
                     &vmw_bo);
     if (unlikely(ret != 0))
         return ret;
 
     return 0;
 }
 
 /**
  * vmw_cmd_wait_query - validate SVGA_3D_CMD_WAIT_QUERY command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context used for this command submission.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct vmw_buffer_object *vmw_bo;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForQuery);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     if (dev_priv->has_mob) {
         VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdWaitForGBQuery);
 
         BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
 
         gb_cmd.header.id = SVGA_3D_CMD_WAIT_FOR_GB_QUERY;
         gb_cmd.header.size = cmd->header.size;
         gb_cmd.body.cid = cmd->body.cid;
         gb_cmd.body.type = cmd->body.type;
         gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
         gb_cmd.body.offset = cmd->body.guestResult.offset;
 
         memcpy(cmd, &gb_cmd, sizeof(*cmd));
         return vmw_cmd_wait_gb_query(dev_priv, sw_context, header);
     }
 
     ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
     if (unlikely(ret != 0))
         return ret;
 
     ret = vmw_translate_guest_ptr(dev_priv, sw_context,
                       &cmd->body.guestResult, &vmw_bo);
     if (unlikely(ret != 0))
         return ret;
 
     return 0;
 }
 
 static int vmw_cmd_dma(struct vmw_private *dev_priv,
                struct vmw_sw_context *sw_context,
                SVGA3dCmdHeader *header)
 {
     struct vmw_buffer_object *vmw_bo = NULL;
     struct vmw_surface *srf = NULL;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceDMA);
     int ret;
     SVGA3dCmdSurfaceDMASuffix *suffix;
     uint32_t bo_size;
     bool dirty;
 
     cmd = container_of(header, typeof(*cmd), header);
     suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->body +
                            header->size - sizeof(*suffix));
 
     /* Make sure device and verifier stays in sync. */
     if (unlikely(suffix->suffixSize != sizeof(*suffix))) {
         VMW_DEBUG_USER("Invalid DMA suffix size.\n");
         return -EINVAL;
     }
 
     ret = vmw_translate_guest_ptr(dev_priv, sw_context,
                       &cmd->body.guest.ptr, &vmw_bo);
     if (unlikely(ret != 0))
         return ret;
 
     /* Make sure DMA doesn't cross BO boundaries. */
     bo_size = vmw_bo->base.base.size;
     if (unlikely(cmd->body.guest.ptr.offset > bo_size)) {
         VMW_DEBUG_USER("Invalid DMA offset.\n");
         return -EINVAL;
     }
 
     bo_size -= cmd->body.guest.ptr.offset;
     if (unlikely(suffix->maximumOffset > bo_size))
         suffix->maximumOffset = bo_size;
 
     dirty = (cmd->body.transfer == SVGA3D_WRITE_HOST_VRAM) ?
         VMW_RES_DIRTY_SET : 0;
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 dirty, user_surface_converter,
                 &cmd->body.host.sid, NULL);
     if (unlikely(ret != 0)) {
         if (unlikely(ret != -ERESTARTSYS))
             VMW_DEBUG_USER("could not find surface for DMA.\n");
         return ret;
     }
 
     srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res);
 
     vmw_kms_cursor_snoop(srf, sw_context->fp->tfile, &vmw_bo->base, header);
 
     return 0;
 }
 
 static int vmw_cmd_draw(struct vmw_private *dev_priv,
             struct vmw_sw_context *sw_context,
             SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDrawPrimitives);
     SVGA3dVertexDecl *decl = (SVGA3dVertexDecl *)(
         (unsigned long)header + sizeof(*cmd));
     SVGA3dPrimitiveRange *range;
     uint32_t i;
     uint32_t maxnum;
     int ret;
 
     ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
     if (unlikely(ret != 0))
         return ret;
 
     cmd = container_of(header, typeof(*cmd), header);
     maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);
 
     if (unlikely(cmd->body.numVertexDecls > maxnum)) {
         VMW_DEBUG_USER("Illegal number of vertex declarations.\n");
         return -EINVAL;
     }
 
     for (i = 0; i < cmd->body.numVertexDecls; ++i, ++decl) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                     VMW_RES_DIRTY_NONE,
                     user_surface_converter,
                     &decl->array.surfaceId, NULL);
         if (unlikely(ret != 0))
             return ret;
     }
 
     maxnum = (header->size - sizeof(cmd->body) -
           cmd->body.numVertexDecls * sizeof(*decl)) / sizeof(*range);
     if (unlikely(cmd->body.numRanges > maxnum)) {
         VMW_DEBUG_USER("Illegal number of index ranges.\n");
         return -EINVAL;
     }
 
     range = (SVGA3dPrimitiveRange *) decl;
     for (i = 0; i < cmd->body.numRanges; ++i, ++range) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                     VMW_RES_DIRTY_NONE,
                     user_surface_converter,
                     &range->indexArray.surfaceId, NULL);
         if (unlikely(ret != 0))
             return ret;
     }
     return 0;
 }
 
 static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetTextureState);
     SVGA3dTextureState *last_state = (SVGA3dTextureState *)
       ((unsigned long) header + header->size + sizeof(header));
     SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
         ((unsigned long) header + sizeof(*cmd));
     struct vmw_resource *ctx;
     struct vmw_resource *res;
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, &ctx);
     if (unlikely(ret != 0))
         return ret;
 
     for (; cur_state < last_state; ++cur_state) {
         if (likely(cur_state->name != SVGA3D_TS_BIND_TEXTURE))
             continue;
 
         if (cur_state->stage >= SVGA3D_NUM_TEXTURE_UNITS) {
             VMW_DEBUG_USER("Illegal texture/sampler unit %u.\n",
                        (unsigned int) cur_state->stage);
             return -EINVAL;
         }
 
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                     VMW_RES_DIRTY_NONE,
                     user_surface_converter,
                     &cur_state->value, &res);
         if (unlikely(ret != 0))
             return ret;
 
         if (dev_priv->has_mob) {
             struct vmw_ctx_bindinfo_tex binding;
             struct vmw_ctx_validation_info *node;
 
             node = vmw_execbuf_info_from_res(sw_context, ctx);
             if (!node)
                 return -EINVAL;
 
             binding.bi.ctx = ctx;
             binding.bi.res = res;
             binding.bi.bt = vmw_ctx_binding_tex;
             binding.texture_stage = cur_state->stage;
             vmw_binding_add(node->staged, &binding.bi, 0,
                     binding.texture_stage);
         }
     }
 
     return 0;
 }
 
 static int vmw_cmd_check_define_gmrfb(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       void *buf)
 {
     struct vmw_buffer_object *vmw_bo;
 
     struct {
         uint32_t header;
         SVGAFifoCmdDefineGMRFB body;
     } *cmd = buf;
 
     return vmw_translate_guest_ptr(dev_priv, sw_context, &cmd->body.ptr,
                        &vmw_bo);
 }
 
 /**
  * vmw_cmd_res_switch_backup - Utility function to handle backup buffer
  * switching
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @res: Pointer to the resource.
  * @buf_id: Pointer to the user-space backup buffer handle in the command
  * stream.
  * @backup_offset: Offset of backup into MOB.
  *
  * This function prepares for registering a switch of backup buffers in the
  * resource metadata just prior to unreserving. It's basically a wrapper around
  * vmw_cmd_res_switch_backup with a different interface.
  */
 static int vmw_cmd_res_switch_backup(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      struct vmw_resource *res, uint32_t *buf_id,
                      unsigned long backup_offset)
 {
     struct vmw_buffer_object *vbo;
     void *info;
     int ret;
 
     info = vmw_execbuf_info_from_res(sw_context, res);
     if (!info)
         return -EINVAL;
 
     ret = vmw_translate_mob_ptr(dev_priv, sw_context, buf_id, &vbo);
     if (ret)
         return ret;
 
     vmw_validation_res_switch_backup(sw_context->ctx, info, vbo,
                      backup_offset);
     return 0;
 }
 
 /**
  * vmw_cmd_switch_backup - Utility function to handle backup buffer switching
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @res_type: The resource type.
  * @converter: Information about user-space binding for this resource type.
  * @res_id: Pointer to the user-space resource handle in the command stream.
  * @buf_id: Pointer to the user-space backup buffer handle in the command
  * stream.
  * @backup_offset: Offset of backup into MOB.
  *
  * This function prepares for registering a switch of backup buffers in the
  * resource metadata just prior to unreserving. It's basically a wrapper around
  * vmw_cmd_res_switch_backup with a different interface.
  */
 static int vmw_cmd_switch_backup(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  enum vmw_res_type res_type,
                  const struct vmw_user_resource_conv
                  *converter, uint32_t *res_id, uint32_t *buf_id,
                  unsigned long backup_offset)
 {
     struct vmw_resource *res;
     int ret;
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, res_type,
                 VMW_RES_DIRTY_NONE, converter, res_id, &res);
     if (ret)
         return ret;
 
     return vmw_cmd_res_switch_backup(dev_priv, sw_context, res, buf_id,
                      backup_offset);
 }
 
 /**
  * vmw_cmd_bind_gb_surface - Validate SVGA_3D_CMD_BIND_GB_SURFACE command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_bind_gb_surface(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBSurface) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_surface,
                      user_surface_converter, &cmd->body.sid,
                      &cmd->body.mobid, 0);
 }
 
 /**
  * vmw_cmd_update_gb_image - Validate SVGA_3D_CMD_UPDATE_GB_IMAGE command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_update_gb_image(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBImage) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.image.sid, NULL);
 }
 
 /**
  * vmw_cmd_update_gb_surface - Validate SVGA_3D_CMD_UPDATE_GB_SURFACE command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_update_gb_surface(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBSurface) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
                  &cmd->body.sid, NULL);
 }
 
 /**
  * vmw_cmd_readback_gb_image - Validate SVGA_3D_CMD_READBACK_GB_IMAGE command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_readback_gb_image(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBImage) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.image.sid, NULL);
 }
 
 /**
  * vmw_cmd_readback_gb_surface - Validate SVGA_3D_CMD_READBACK_GB_SURFACE
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_readback_gb_surface(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBSurface) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
                  &cmd->body.sid, NULL);
 }
 
 /**
  * vmw_cmd_invalidate_gb_image - Validate SVGA_3D_CMD_INVALIDATE_GB_IMAGE
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_invalidate_gb_image(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBImage) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.image.sid, NULL);
 }
 
 /**
  * vmw_cmd_invalidate_gb_surface - Validate SVGA_3D_CMD_INVALIDATE_GB_SURFACE
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBSurface) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_CLEAR, user_surface_converter,
                  &cmd->body.sid, NULL);
 }
 
 /**
  * vmw_cmd_shader_define - Validate SVGA_3D_CMD_SHADER_DEFINE command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_shader_define(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDefineShader);
     int ret;
     size_t size;
     struct vmw_resource *ctx;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, &ctx);
     if (unlikely(ret != 0))
         return ret;
 
     if (unlikely(!dev_priv->has_mob))
         return 0;
 
     size = cmd->header.size - sizeof(cmd->body);
     ret = vmw_compat_shader_add(dev_priv, vmw_context_res_man(ctx),
                     cmd->body.shid, cmd + 1, cmd->body.type,
                     size, &sw_context->staged_cmd_res);
     if (unlikely(ret != 0))
         return ret;
 
     return vmw_resource_relocation_add(sw_context, NULL,
                        vmw_ptr_diff(sw_context->buf_start,
                             &cmd->header.id),
                        vmw_res_rel_nop);
 }
 
 /**
  * vmw_cmd_shader_destroy - Validate SVGA_3D_CMD_SHADER_DESTROY command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDestroyShader);
     int ret;
     struct vmw_resource *ctx;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, &ctx);
     if (unlikely(ret != 0))
         return ret;
 
     if (unlikely(!dev_priv->has_mob))
         return 0;
 
     ret = vmw_shader_remove(vmw_context_res_man(ctx), cmd->body.shid,
                 cmd->body.type, &sw_context->staged_cmd_res);
     if (unlikely(ret != 0))
         return ret;
 
     return vmw_resource_relocation_add(sw_context, NULL,
                        vmw_ptr_diff(sw_context->buf_start,
                             &cmd->header.id),
                        vmw_res_rel_nop);
 }
 
 /**
  * vmw_cmd_set_shader - Validate SVGA_3D_CMD_SET_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShader);
     struct vmw_ctx_bindinfo_shader binding;
     struct vmw_resource *ctx, *res = NULL;
     struct vmw_ctx_validation_info *ctx_info;
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     if (cmd->body.type >= SVGA3D_SHADERTYPE_PREDX_MAX) {
         VMW_DEBUG_USER("Illegal shader type %u.\n",
                    (unsigned int) cmd->body.type);
         return -EINVAL;
     }
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, &ctx);
     if (unlikely(ret != 0))
         return ret;
 
     if (!dev_priv->has_mob)
         return 0;
 
     if (cmd->body.shid != SVGA3D_INVALID_ID) {
         /*
          * This is the compat shader path - Per device guest-backed
          * shaders, but user-space thinks it's per context host-
          * backed shaders.
          */
         res = vmw_shader_lookup(vmw_context_res_man(ctx),
                     cmd->body.shid, cmd->body.type);
         if (!IS_ERR(res)) {
             ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                                 VMW_RES_DIRTY_NONE);
             if (unlikely(ret != 0))
                 return ret;
 
             ret = vmw_resource_relocation_add
                 (sw_context, res,
                  vmw_ptr_diff(sw_context->buf_start,
                           &cmd->body.shid),
                  vmw_res_rel_normal);
             if (unlikely(ret != 0))
                 return ret;
         }
     }
 
     if (IS_ERR_OR_NULL(res)) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
                     VMW_RES_DIRTY_NONE,
                     user_shader_converter, &cmd->body.shid,
                     &res);
         if (unlikely(ret != 0))
             return ret;
     }
 
     ctx_info = vmw_execbuf_info_from_res(sw_context, ctx);
     if (!ctx_info)
         return -EINVAL;
 
     binding.bi.ctx = ctx;
     binding.bi.res = res;
     binding.bi.bt = vmw_ctx_binding_shader;
     binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
     vmw_binding_add(ctx_info->staged, &binding.bi, binding.shader_slot, 0);
 
     return 0;
 }
 
 /**
  * vmw_cmd_set_shader_const - Validate SVGA_3D_CMD_SET_SHADER_CONST command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_set_shader_const(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShaderConst);
     int ret;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                 VMW_RES_DIRTY_SET, user_context_converter,
                 &cmd->body.cid, NULL);
     if (unlikely(ret != 0))
         return ret;
 
     if (dev_priv->has_mob)
         header->id = SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE;
 
     return 0;
 }
 
 /**
  * vmw_cmd_bind_gb_shader - Validate SVGA_3D_CMD_BIND_GB_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBShader) =
         container_of(header, typeof(*cmd), header);
 
     return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader,
                      user_shader_converter, &cmd->body.shid,
                      &cmd->body.mobid, cmd->body.offsetInBytes);
 }
 
 /**
  * vmw_cmd_dx_set_single_constant_buffer - Validate
  * SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int
 vmw_cmd_dx_set_single_constant_buffer(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetSingleConstantBuffer);
     SVGA3dShaderType max_shader_num = has_sm5_context(dev_priv) ?
         SVGA3D_NUM_SHADERTYPE : SVGA3D_NUM_SHADERTYPE_DX10;
 
     struct vmw_resource *res = NULL;
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_ctx_bindinfo_cb binding;
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.sid, &res);
     if (unlikely(ret != 0))
         return ret;
 
     binding.bi.ctx = ctx_node->ctx;
     binding.bi.res = res;
     binding.bi.bt = vmw_ctx_binding_cb;
     binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
     binding.offset = cmd->body.offsetInBytes;
     binding.size = cmd->body.sizeInBytes;
     binding.slot = cmd->body.slot;
 
     if (binding.shader_slot >= max_shader_num ||
         binding.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
         VMW_DEBUG_USER("Illegal const buffer shader %u slot %u.\n",
                    (unsigned int) cmd->body.type,
                    (unsigned int) binding.slot);
         return -EINVAL;
     }
 
     vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot,
             binding.slot);
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_set_constant_buffer_offset - Validate
  * SVGA_3D_CMD_DX_SET_VS/PS/GS/HS/DS/CS_CONSTANT_BUFFER_OFFSET command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int
 vmw_cmd_dx_set_constant_buffer_offset(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetConstantBufferOffset);
 
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     u32 shader_slot;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     if (cmd->body.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
         VMW_DEBUG_USER("Illegal const buffer slot %u.\n",
                    (unsigned int) cmd->body.slot);
         return -EINVAL;
     }
 
     shader_slot = cmd->header.id - SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET;
     vmw_binding_cb_offset_update(ctx_node->staged, shader_slot,
                      cmd->body.slot, cmd->body.offsetInBytes);
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_set_shader_res - Validate SVGA_3D_CMD_DX_SET_SHADER_RESOURCES
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_shader_res(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShaderResources) =
         container_of(header, typeof(*cmd), header);
     SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
         SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
 
     u32 num_sr_view = (cmd->header.size - sizeof(cmd->body)) /
         sizeof(SVGA3dShaderResourceViewId);
 
     if ((u64) cmd->body.startView + (u64) num_sr_view >
         (u64) SVGA3D_DX_MAX_SRVIEWS ||
         cmd->body.type >= max_allowed) {
         VMW_DEBUG_USER("Invalid shader binding.\n");
         return -EINVAL;
     }
 
     return vmw_view_bindings_add(sw_context, vmw_view_sr,
                      vmw_ctx_binding_sr,
                      cmd->body.type - SVGA3D_SHADERTYPE_MIN,
                      (void *) &cmd[1], num_sr_view,
                      cmd->body.startView);
 }
 
 /**
  * vmw_cmd_dx_set_shader - Validate SVGA_3D_CMD_DX_SET_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_shader(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context,
                  SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShader);
     SVGA3dShaderType max_allowed = has_sm5_context(dev_priv) ?
         SVGA3D_SHADERTYPE_MAX : SVGA3D_SHADERTYPE_DX10_MAX;
     struct vmw_resource *res = NULL;
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_ctx_bindinfo_shader binding;
     int ret = 0;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
 
     if (cmd->body.type >= max_allowed ||
         cmd->body.type < SVGA3D_SHADERTYPE_MIN) {
         VMW_DEBUG_USER("Illegal shader type %u.\n",
                    (unsigned int) cmd->body.type);
         return -EINVAL;
     }
 
     if (cmd->body.shaderId != SVGA3D_INVALID_ID) {
         res = vmw_shader_lookup(sw_context->man, cmd->body.shaderId, 0);
         if (IS_ERR(res)) {
             VMW_DEBUG_USER("Could not find shader for binding.\n");
             return PTR_ERR(res);
         }
 
         ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                             VMW_RES_DIRTY_NONE);
         if (ret)
             return ret;
     }
 
     binding.bi.ctx = ctx_node->ctx;
     binding.bi.res = res;
     binding.bi.bt = vmw_ctx_binding_dx_shader;
     binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
 
     vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot, 0);
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_set_vertex_buffers - Validates SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_vertex_buffers(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_ctx_bindinfo_vb binding;
     struct vmw_resource *res;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXSetVertexBuffers body;
         SVGA3dVertexBuffer buf[];
     } *cmd;
     int i, ret, num;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     num = (cmd->header.size - sizeof(cmd->body)) /
         sizeof(SVGA3dVertexBuffer);
     if ((u64)num + (u64)cmd->body.startBuffer >
         (u64)SVGA3D_DX_MAX_VERTEXBUFFERS) {
         VMW_DEBUG_USER("Invalid number of vertex buffers.\n");
         return -EINVAL;
     }
 
     for (i = 0; i < num; i++) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                     VMW_RES_DIRTY_NONE,
                     user_surface_converter,
                     &cmd->buf[i].sid, &res);
         if (unlikely(ret != 0))
             return ret;
 
         binding.bi.ctx = ctx_node->ctx;
         binding.bi.bt = vmw_ctx_binding_vb;
         binding.bi.res = res;
         binding.offset = cmd->buf[i].offset;
         binding.stride = cmd->buf[i].stride;
         binding.slot = i + cmd->body.startBuffer;
 
         vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
     }
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_set_index_buffer - Validate
  * SVGA_3D_CMD_DX_IA_SET_INDEX_BUFFER command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_index_buffer(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_ctx_bindinfo_ib binding;
     struct vmw_resource *res;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetIndexBuffer);
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.sid, &res);
     if (unlikely(ret != 0))
         return ret;
 
     binding.bi.ctx = ctx_node->ctx;
     binding.bi.res = res;
     binding.bi.bt = vmw_ctx_binding_ib;
     binding.offset = cmd->body.offset;
     binding.format = cmd->body.format;
 
     vmw_binding_add(ctx_node->staged, &binding.bi, 0, 0);
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_set_rendertargets - Validate SVGA_3D_CMD_DX_SET_RENDERTARGETS
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_rendertargets(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetRenderTargets) =
         container_of(header, typeof(*cmd), header);
     u32 num_rt_view = (cmd->header.size - sizeof(cmd->body)) /
         sizeof(SVGA3dRenderTargetViewId);
     int ret;
 
     if (num_rt_view > SVGA3D_DX_MAX_RENDER_TARGETS) {
         VMW_DEBUG_USER("Invalid DX Rendertarget binding.\n");
         return -EINVAL;
     }
 
     ret = vmw_view_bindings_add(sw_context, vmw_view_ds, vmw_ctx_binding_ds,
                     0, &cmd->body.depthStencilViewId, 1, 0);
     if (ret)
         return ret;
 
     return vmw_view_bindings_add(sw_context, vmw_view_rt,
                      vmw_ctx_binding_dx_rt, 0, (void *)&cmd[1],
                      num_rt_view, 0);
 }
 
 /**
  * vmw_cmd_dx_clear_rendertarget_view - Validate
  * SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_clear_rendertarget_view(struct vmw_private *dev_priv,
                           struct vmw_sw_context *sw_context,
                           SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearRenderTargetView) =
         container_of(header, typeof(*cmd), header);
     struct vmw_resource *ret;
 
     ret = vmw_view_id_val_add(sw_context, vmw_view_rt,
                   cmd->body.renderTargetViewId);
 
     return PTR_ERR_OR_ZERO(ret);
 }
 
 /**
  * vmw_cmd_dx_clear_depthstencil_view - Validate
  * SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_clear_depthstencil_view(struct vmw_private *dev_priv,
                           struct vmw_sw_context *sw_context,
                           SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearDepthStencilView) =
         container_of(header, typeof(*cmd), header);
     struct vmw_resource *ret;
 
     ret = vmw_view_id_val_add(sw_context, vmw_view_ds,
                   cmd->body.depthStencilViewId);
 
     return PTR_ERR_OR_ZERO(ret);
 }
 
 static int vmw_cmd_dx_view_define(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_resource *srf;
     struct vmw_resource *res;
     enum vmw_view_type view_type;
     int ret;
     /*
      * This is based on the fact that all affected define commands have the
      * same initial command body layout.
      */
     struct {
         SVGA3dCmdHeader header;
         uint32 defined_id;
         uint32 sid;
     } *cmd;
 
     if (!ctx_node)
         return -EINVAL;
 
     view_type = vmw_view_cmd_to_type(header->id);
     if (view_type == vmw_view_max)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     if (unlikely(cmd->sid == SVGA3D_INVALID_ID)) {
         VMW_DEBUG_USER("Invalid surface id.\n");
         return -EINVAL;
     }
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->sid, &srf);
     if (unlikely(ret != 0))
         return ret;
 
     res = vmw_context_cotable(ctx_node->ctx, vmw_view_cotables[view_type]);
     ret = vmw_cotable_notify(res, cmd->defined_id);
     if (unlikely(ret != 0))
         return ret;
 
     return vmw_view_add(sw_context->man, ctx_node->ctx, srf, view_type,
                 cmd->defined_id, header,
                 header->size + sizeof(*header),
                 &sw_context->staged_cmd_res);
 }
 
 /**
  * vmw_cmd_dx_set_so_targets - Validate SVGA_3D_CMD_DX_SET_SOTARGETS command.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_set_so_targets(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_ctx_bindinfo_so_target binding;
     struct vmw_resource *res;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXSetSOTargets body;
         SVGA3dSoTarget targets[];
     } *cmd;
     int i, ret, num;
 
     if (!ctx_node)
         return -EINVAL;
 
     cmd = container_of(header, typeof(*cmd), header);
     num = (cmd->header.size - sizeof(cmd->body)) / sizeof(SVGA3dSoTarget);
 
     if (num > SVGA3D_DX_MAX_SOTARGETS) {
         VMW_DEBUG_USER("Invalid DX SO binding.\n");
         return -EINVAL;
     }
 
     for (i = 0; i < num; i++) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                     VMW_RES_DIRTY_SET,
                     user_surface_converter,
                     &cmd->targets[i].sid, &res);
         if (unlikely(ret != 0))
             return ret;
 
         binding.bi.ctx = ctx_node->ctx;
         binding.bi.res = res;
         binding.bi.bt = vmw_ctx_binding_so_target;
         binding.offset = cmd->targets[i].offset;
         binding.size = cmd->targets[i].sizeInBytes;
         binding.slot = i;
 
         vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
     }
 
     return 0;
 }
 
 static int vmw_cmd_dx_so_define(struct vmw_private *dev_priv,
                 struct vmw_sw_context *sw_context,
                 SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_resource *res;
     /*
      * This is based on the fact that all affected define commands have
      * the same initial command body layout.
      */
     struct {
         SVGA3dCmdHeader header;
         uint32 defined_id;
     } *cmd;
     enum vmw_so_type so_type;
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     so_type = vmw_so_cmd_to_type(header->id);
     res = vmw_context_cotable(ctx_node->ctx, vmw_so_cotables[so_type]);
     if (IS_ERR(res))
         return PTR_ERR(res);
     cmd = container_of(header, typeof(*cmd), header);
     ret = vmw_cotable_notify(res, cmd->defined_id);
 
     return ret;
 }
 
 /**
  * vmw_cmd_dx_check_subresource - Validate SVGA_3D_CMD_DX_[X]_SUBRESOURCE
  * command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_check_subresource(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     SVGA3dCmdHeader *header)
 {
     struct {
         SVGA3dCmdHeader header;
         union {
             SVGA3dCmdDXReadbackSubResource r_body;
             SVGA3dCmdDXInvalidateSubResource i_body;
             SVGA3dCmdDXUpdateSubResource u_body;
             SVGA3dSurfaceId sid;
         };
     } *cmd;
 
     BUILD_BUG_ON(offsetof(typeof(*cmd), r_body.sid) !=
              offsetof(typeof(*cmd), sid));
     BUILD_BUG_ON(offsetof(typeof(*cmd), i_body.sid) !=
              offsetof(typeof(*cmd), sid));
     BUILD_BUG_ON(offsetof(typeof(*cmd), u_body.sid) !=
              offsetof(typeof(*cmd), sid));
 
     cmd = container_of(header, typeof(*cmd), header);
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->sid, NULL);
 }
 
 static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv,
                 struct vmw_sw_context *sw_context,
                 SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
 
     if (!ctx_node)
         return -EINVAL;
 
     return 0;
 }
 
 /**
  * vmw_cmd_dx_view_remove - validate a view remove command and schedule the view
  * resource for removal.
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  *
  * Check that the view exists, and if it was not created using this command
  * batch, conditionally make this command a NOP.
  */
 static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct {
         SVGA3dCmdHeader header;
         union vmw_view_destroy body;
     } *cmd = container_of(header, typeof(*cmd), header);
     enum vmw_view_type view_type = vmw_view_cmd_to_type(header->id);
     struct vmw_resource *view;
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     ret = vmw_view_remove(sw_context->man, cmd->body.view_id, view_type,
                   &sw_context->staged_cmd_res, &view);
     if (ret || !view)
         return ret;
 
     /*
      * If the view wasn't created during this command batch, it might
      * have been removed due to a context swapout, so add a
      * relocation to conditionally make this command a NOP to avoid
      * device errors.
      */
     return vmw_resource_relocation_add(sw_context, view,
                        vmw_ptr_diff(sw_context->buf_start,
                             &cmd->header.id),
                        vmw_res_rel_cond_nop);
 }
 
 /**
  * vmw_cmd_dx_define_shader - Validate SVGA_3D_CMD_DX_DEFINE_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_define_shader(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     struct vmw_resource *res;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineShader) =
         container_of(header, typeof(*cmd), header);
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXSHADER);
     ret = vmw_cotable_notify(res, cmd->body.shaderId);
     if (ret)
         return ret;
 
     return vmw_dx_shader_add(sw_context->man, ctx_node->ctx,
                  cmd->body.shaderId, cmd->body.type,
                  &sw_context->staged_cmd_res);
 }
 
 /**
  * vmw_cmd_dx_destroy_shader - Validate SVGA_3D_CMD_DX_DESTROY_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_destroy_shader(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDestroyShader) =
         container_of(header, typeof(*cmd), header);
     int ret;
 
     if (!ctx_node)
         return -EINVAL;
 
     ret = vmw_shader_remove(sw_context->man, cmd->body.shaderId, 0,
                 &sw_context->staged_cmd_res);
 
     return ret;
 }
 
 /**
  * vmw_cmd_dx_bind_shader - Validate SVGA_3D_CMD_DX_BIND_SHADER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_bind_shader(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct vmw_resource *ctx;
     struct vmw_resource *res;
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindShader) =
         container_of(header, typeof(*cmd), header);
     int ret;
 
     if (cmd->body.cid != SVGA3D_INVALID_ID) {
         ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
                     VMW_RES_DIRTY_SET,
                     user_context_converter, &cmd->body.cid,
                     &ctx);
         if (ret)
             return ret;
     } else {
         struct vmw_ctx_validation_info *ctx_node =
             VMW_GET_CTX_NODE(sw_context);
 
         if (!ctx_node)
             return -EINVAL;
 
         ctx = ctx_node->ctx;
     }
 
     res = vmw_shader_lookup(vmw_context_res_man(ctx), cmd->body.shid, 0);
     if (IS_ERR(res)) {
         VMW_DEBUG_USER("Could not find shader to bind.\n");
         return PTR_ERR(res);
     }
 
     ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                         VMW_RES_DIRTY_NONE);
     if (ret) {
         VMW_DEBUG_USER("Error creating resource validation node.\n");
         return ret;
     }
 
     return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
                      &cmd->body.mobid,
                      cmd->body.offsetInBytes);
 }
 
 /**
  * vmw_cmd_dx_genmips - Validate SVGA_3D_CMD_DX_GENMIPS command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXGenMips) =
         container_of(header, typeof(*cmd), header);
     struct vmw_resource *view;
     struct vmw_res_cache_entry *rcache;
 
     view = vmw_view_id_val_add(sw_context, vmw_view_sr,
                    cmd->body.shaderResourceViewId);
     if (IS_ERR(view))
         return PTR_ERR(view);
 
     /*
      * Normally the shader-resource view is not gpu-dirtying, but for
      * this particular command it is...
      * So mark the last looked-up surface, which is the surface
      * the view points to, gpu-dirty.
      */
     rcache = &sw_context->res_cache[vmw_res_surface];
     vmw_validation_res_set_dirty(sw_context->ctx, rcache->private,
                      VMW_RES_DIRTY_SET);
     return 0;
 }
 
 /**
  * vmw_cmd_dx_transfer_from_buffer - Validate
  * SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXTransferFromBuffer) =
         container_of(header, typeof(*cmd), header);
     int ret;
 
     ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                 VMW_RES_DIRTY_NONE, user_surface_converter,
                 &cmd->body.srcSid, NULL);
     if (ret != 0)
         return ret;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.destSid, NULL);
 }
 
 /**
  * vmw_cmd_intra_surface_copy - Validate SVGA_3D_CMD_INTRA_SURFACE_COPY command
  *
  * @dev_priv: Pointer to a device private struct.
  * @sw_context: The software context being used for this batch.
  * @header: Pointer to the command header in the command stream.
  */
 static int vmw_cmd_intra_surface_copy(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdIntraSurfaceCopy) =
         container_of(header, typeof(*cmd), header);
 
     if (!(dev_priv->capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY))
         return -EINVAL;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_SET, user_surface_converter,
                  &cmd->body.surface.sid, NULL);
 }
 
 static int vmw_cmd_sm5(struct vmw_private *dev_priv,
                struct vmw_sw_context *sw_context,
                SVGA3dCmdHeader *header)
 {
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return 0;
 }
 
 static int vmw_cmd_sm5_view_define(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return vmw_cmd_dx_view_define(dev_priv, sw_context, header);
 }
 
 static int vmw_cmd_sm5_view_remove(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return vmw_cmd_dx_view_remove(dev_priv, sw_context, header);
 }
 
 static int vmw_cmd_clear_uav_uint(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXClearUAViewUint body;
     } *cmd = container_of(header, typeof(*cmd), header);
     struct vmw_resource *ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
                   cmd->body.uaViewId);
 
     return PTR_ERR_OR_ZERO(ret);
 }
 
 static int vmw_cmd_clear_uav_float(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    SVGA3dCmdHeader *header)
 {
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXClearUAViewFloat body;
     } *cmd = container_of(header, typeof(*cmd), header);
     struct vmw_resource *ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     ret = vmw_view_id_val_add(sw_context, vmw_view_ua,
                   cmd->body.uaViewId);
 
     return PTR_ERR_OR_ZERO(ret);
 }
 
 static int vmw_cmd_set_uav(struct vmw_private *dev_priv,
                struct vmw_sw_context *sw_context,
                SVGA3dCmdHeader *header)
 {
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXSetUAViews body;
     } *cmd = container_of(header, typeof(*cmd), header);
     u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
         sizeof(SVGA3dUAViewId);
     int ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     if (num_uav > vmw_max_num_uavs(dev_priv)) {
         VMW_DEBUG_USER("Invalid UAV binding.\n");
         return -EINVAL;
     }
 
     ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
                     vmw_ctx_binding_uav, 0, (void *)&cmd[1],
                     num_uav, 0);
     if (ret)
         return ret;
 
     vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 0,
                      cmd->body.uavSpliceIndex);
 
     return ret;
 }
 
 static int vmw_cmd_set_cs_uav(struct vmw_private *dev_priv,
                   struct vmw_sw_context *sw_context,
                   SVGA3dCmdHeader *header)
 {
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXSetCSUAViews body;
     } *cmd = container_of(header, typeof(*cmd), header);
     u32 num_uav = (cmd->header.size - sizeof(cmd->body)) /
         sizeof(SVGA3dUAViewId);
     int ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     if (num_uav > vmw_max_num_uavs(dev_priv)) {
         VMW_DEBUG_USER("Invalid UAV binding.\n");
         return -EINVAL;
     }
 
     ret = vmw_view_bindings_add(sw_context, vmw_view_ua,
                     vmw_ctx_binding_cs_uav, 0, (void *)&cmd[1],
                     num_uav, 0);
     if (ret)
         return ret;
 
     vmw_binding_add_uav_index(sw_context->dx_ctx_node->staged, 1,
                   cmd->body.startIndex);
 
     return ret;
 }
 
 static int vmw_cmd_dx_define_streamoutput(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
     struct vmw_resource *res;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXDefineStreamOutputWithMob body;
     } *cmd = container_of(header, typeof(*cmd), header);
     int ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     if (!ctx_node) {
         DRM_ERROR("DX Context not set.\n");
         return -EINVAL;
     }
 
     res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_STREAMOUTPUT);
     ret = vmw_cotable_notify(res, cmd->body.soid);
     if (ret)
         return ret;
 
     return vmw_dx_streamoutput_add(sw_context->man, ctx_node->ctx,
                        cmd->body.soid,
                        &sw_context->staged_cmd_res);
 }
 
 static int vmw_cmd_dx_destroy_streamoutput(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
     struct vmw_resource *res;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXDestroyStreamOutput body;
     } *cmd = container_of(header, typeof(*cmd), header);
 
     if (!ctx_node) {
         DRM_ERROR("DX Context not set.\n");
         return -EINVAL;
     }
 
     /*
      * When device does not support SM5 then streamoutput with mob command is
      * not available to user-space. Simply return in this case.
      */
     if (!has_sm5_context(dev_priv))
         return 0;
 
     /*
      * With SM5 capable device if lookup fails then user-space probably used
      * old streamoutput define command. Return without an error.
      */
     res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
                      cmd->body.soid);
     if (IS_ERR(res))
         return 0;
 
     return vmw_dx_streamoutput_remove(sw_context->man, cmd->body.soid,
                       &sw_context->staged_cmd_res);
 }
 
 static int vmw_cmd_dx_bind_streamoutput(struct vmw_private *dev_priv,
                     struct vmw_sw_context *sw_context,
                     SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
     struct vmw_resource *res;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXBindStreamOutput body;
     } *cmd = container_of(header, typeof(*cmd), header);
     int ret;
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     if (!ctx_node) {
         DRM_ERROR("DX Context not set.\n");
         return -EINVAL;
     }
 
     res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
                      cmd->body.soid);
     if (IS_ERR(res)) {
         DRM_ERROR("Could not find streamoutput to bind.\n");
         return PTR_ERR(res);
     }
 
     vmw_dx_streamoutput_set_size(res, cmd->body.sizeInBytes);
 
     ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                         VMW_RES_DIRTY_NONE);
     if (ret) {
         DRM_ERROR("Error creating resource validation node.\n");
         return ret;
     }
 
     return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
                      &cmd->body.mobid,
                      cmd->body.offsetInBytes);
 }
 
 static int vmw_cmd_dx_set_streamoutput(struct vmw_private *dev_priv,
                        struct vmw_sw_context *sw_context,
                        SVGA3dCmdHeader *header)
 {
     struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
     struct vmw_resource *res;
     struct vmw_ctx_bindinfo_so binding;
     struct {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXSetStreamOutput body;
     } *cmd = container_of(header, typeof(*cmd), header);
     int ret;
 
     if (!ctx_node) {
         DRM_ERROR("DX Context not set.\n");
         return -EINVAL;
     }
 
     if (cmd->body.soid == SVGA3D_INVALID_ID)
         return 0;
 
     /*
      * When device does not support SM5 then streamoutput with mob command is
      * not available to user-space. Simply return in this case.
      */
     if (!has_sm5_context(dev_priv))
         return 0;
 
     /*
      * With SM5 capable device if lookup fails then user-space probably used
      * old streamoutput define command. Return without an error.
      */
     res = vmw_dx_streamoutput_lookup(vmw_context_res_man(ctx_node->ctx),
                      cmd->body.soid);
     if (IS_ERR(res)) {
         return 0;
     }
 
     ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
                         VMW_RES_DIRTY_NONE);
     if (ret) {
         DRM_ERROR("Error creating resource validation node.\n");
         return ret;
     }
 
     binding.bi.ctx = ctx_node->ctx;
     binding.bi.res = res;
     binding.bi.bt = vmw_ctx_binding_so;
     binding.slot = 0; /* Only one SO set to context at a time. */
 
     vmw_binding_add(sw_context->dx_ctx_node->staged, &binding.bi, 0,
             binding.slot);
 
     return ret;
 }
 
 static int vmw_cmd_indexed_instanced_indirect(struct vmw_private *dev_priv,
                           struct vmw_sw_context *sw_context,
                           SVGA3dCmdHeader *header)
 {
     struct vmw_draw_indexed_instanced_indirect_cmd {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXDrawIndexedInstancedIndirect body;
     } *cmd = container_of(header, typeof(*cmd), header);
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.argsBufferSid, NULL);
 }
 
 static int vmw_cmd_instanced_indirect(struct vmw_private *dev_priv,
                       struct vmw_sw_context *sw_context,
                       SVGA3dCmdHeader *header)
 {
     struct vmw_draw_instanced_indirect_cmd {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXDrawInstancedIndirect body;
     } *cmd = container_of(header, typeof(*cmd), header);
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.argsBufferSid, NULL);
 }
 
 static int vmw_cmd_dispatch_indirect(struct vmw_private *dev_priv,
                      struct vmw_sw_context *sw_context,
                      SVGA3dCmdHeader *header)
 {
     struct vmw_dispatch_indirect_cmd {
         SVGA3dCmdHeader header;
         SVGA3dCmdDXDispatchIndirect body;
     } *cmd = container_of(header, typeof(*cmd), header);
 
     if (!has_sm5_context(dev_priv))
         return -EINVAL;
 
     return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
                  VMW_RES_DIRTY_NONE, user_surface_converter,
                  &cmd->body.argsBufferSid, NULL);
 }
 
 static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
                 struct vmw_sw_context *sw_context,
                 void *buf, uint32_t *size)
 {
     uint32_t size_remaining = *size;
     uint32_t cmd_id;
 
     cmd_id = ((uint32_t *)buf)[0];
     switch (cmd_id) {
     case SVGA_CMD_UPDATE:
         *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdUpdate);
         break;
     case SVGA_CMD_DEFINE_GMRFB:
         *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdDefineGMRFB);
         break;
     case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
         *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
         break;
     case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
         *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
         break;
     default:
         VMW_DEBUG_USER("Unsupported SVGA command: %u.\n", cmd_id);
         return -EINVAL;
     }
 
     if (*size > size_remaining) {
         VMW_DEBUG_USER("Invalid SVGA command (size mismatch): %u.\n",
                    cmd_id);
         return -EINVAL;
     }
 
     if (unlikely(!sw_context->kernel)) {
         VMW_DEBUG_USER("Kernel only SVGA command: %u.\n", cmd_id);
         return -EPERM;
     }
 
     if (cmd_id == SVGA_CMD_DEFINE_GMRFB)
         return vmw_cmd_check_define_gmrfb(dev_priv, sw_context, buf);
 
     return 0;
 }
 
 static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DESTROY, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_COPY, &vmw_cmd_surface_copy_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_STRETCHBLT, &vmw_cmd_stretch_blt_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DMA, &vmw_cmd_dma,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DEFINE, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DESTROY, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETTRANSFORM, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETZRANGE, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERSTATE, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERTARGET,
             &vmw_cmd_set_render_target_check, true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETTEXTURESTATE, &vmw_cmd_tex_state,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETMATERIAL, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTDATA, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTENABLED, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETVIEWPORT, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETCLIPPLANE, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_CLEAR, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_shader_define,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_shader_destroy,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_set_shader_const,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_begin_query,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok,
             true, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
             &vmw_cmd_blt_surf_screen_check, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE_V2, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SCREEN_DMA, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD1, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD2, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD12, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD13, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD14, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD15, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD16, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_DEAD17, &vmw_cmd_invalid, false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_READBACK_OTABLE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_MOB, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_MOB, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_REDEFINE_GB_MOB64, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_MOB_MAPPING, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SURFACE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE, &vmw_cmd_bind_gb_surface,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_COND_BIND_GB_SURFACE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_IMAGE, &vmw_cmd_update_gb_image,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SURFACE,
             &vmw_cmd_update_gb_surface, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE,
             &vmw_cmd_readback_gb_image, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_SURFACE,
             &vmw_cmd_readback_gb_surface, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE,
             &vmw_cmd_invalidate_gb_image, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_SURFACE,
             &vmw_cmd_invalidate_gb_surface, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE64, &vmw_cmd_invalid,
             false, false, false),
     VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_NOP, &vmw_cmd_ok,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_NOP_ERROR, &vmw_cmd_ok,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_ENABLE_GART, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DISABLE_GART, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_MAP_MOB_INTO_GART, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_UNMAP_GART_RANGE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SCREENTARGET, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SCREENTARGET, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SCREENTARGET, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SCREENTARGET, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE, &vmw_cmd_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_GB_SCREEN_DMA, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE_WITH_PITCH, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_GB_MOB_FENCE, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE_V2, &vmw_cmd_invalid,
             false, false, true),
 
     /* SM commands */
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_CONTEXT, &vmw_cmd_invalid,
             false, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER,
             &vmw_cmd_dx_set_single_constant_buffer, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER_RESOURCES,
             &vmw_cmd_dx_set_shader_res, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER, &vmw_cmd_dx_set_shader,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SAMPLERS, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_AUTO, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS,
             &vmw_cmd_dx_set_vertex_buffers, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INDEX_BUFFER,
             &vmw_cmd_dx_set_index_buffer, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RENDERTARGETS,
             &vmw_cmd_dx_set_rendertargets, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_BLEND_STATE, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DEPTHSTENCIL_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RASTERIZER_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_QUERY, &vmw_cmd_dx_define_query,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_QUERY, &vmw_cmd_dx_bind_query,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_QUERY_OFFSET,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_QUERY, &vmw_cmd_invalid,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VIEWPORTS, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SCISSORRECTS, &vmw_cmd_dx_cid_check,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW,
             &vmw_cmd_dx_clear_rendertarget_view, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW,
             &vmw_cmd_dx_clear_depthstencil_view, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY, &vmw_cmd_invalid,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_GENMIPS, &vmw_cmd_dx_genmips,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE,
             &vmw_cmd_dx_check_subresource, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_SUBRESOURCE,
             &vmw_cmd_dx_check_subresource, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_SUBRESOURCE,
             &vmw_cmd_dx_check_subresource, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW,
             &vmw_cmd_dx_view_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADERRESOURCE_VIEW,
             &vmw_cmd_dx_view_remove, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RENDERTARGET_VIEW,
             &vmw_cmd_dx_view_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RENDERTARGET_VIEW,
             &vmw_cmd_dx_view_remove, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW,
             &vmw_cmd_dx_view_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_VIEW,
             &vmw_cmd_dx_view_remove, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_BLEND_STATE,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_BLEND_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADER,
             &vmw_cmd_dx_define_shader, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADER,
             &vmw_cmd_dx_destroy_shader, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_SHADER,
             &vmw_cmd_dx_bind_shader, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT,
             &vmw_cmd_dx_so_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT,
             &vmw_cmd_dx_destroy_streamoutput, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_STREAMOUTPUT,
             &vmw_cmd_dx_set_streamoutput, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SOTARGETS,
             &vmw_cmd_dx_set_so_targets, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INPUT_LAYOUT,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_TOPOLOGY,
             &vmw_cmd_dx_cid_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BUFFER_COPY,
             &vmw_cmd_buffer_copy_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION,
             &vmw_cmd_pred_copy_check, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
             &vmw_cmd_dx_transfer_from_buffer,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_GS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_HS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_CONSTANT_BUFFER_OFFSET,
             &vmw_cmd_dx_set_constant_buffer_offset,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_INTRA_SURFACE_COPY, &vmw_cmd_intra_surface_copy,
             true, false, true),
 
     /*
      * SM5 commands
      */
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_UA_VIEW, &vmw_cmd_sm5_view_define,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_UA_VIEW, &vmw_cmd_sm5_view_remove,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_UINT, &vmw_cmd_clear_uav_uint,
             true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_UA_VIEW_FLOAT,
             &vmw_cmd_clear_uav_float, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_COPY_STRUCTURE_COUNT, &vmw_cmd_invalid, true,
             false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_UA_VIEWS, &vmw_cmd_set_uav, true, false,
             true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED_INDIRECT,
             &vmw_cmd_indexed_instanced_indirect, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED_INDIRECT,
             &vmw_cmd_instanced_indirect, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH, &vmw_cmd_sm5, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DISPATCH_INDIRECT,
             &vmw_cmd_dispatch_indirect, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_CS_UA_VIEWS, &vmw_cmd_set_cs_uav, true,
             false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW_V2,
             &vmw_cmd_sm5_view_define, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT_WITH_MOB,
             &vmw_cmd_dx_define_streamoutput, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_STREAMOUTPUT,
             &vmw_cmd_dx_bind_streamoutput, true, false, true),
     VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE_V2,
             &vmw_cmd_dx_so_define, true, false, true),
 };
 
 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd)
 {
     u32 cmd_id = ((u32 *) buf)[0];
 
     if (cmd_id >= SVGA_CMD_MAX) {
         SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
         const struct vmw_cmd_entry *entry;
 
         *size = header->size + sizeof(SVGA3dCmdHeader);
         cmd_id = header->id;
         if (cmd_id >= SVGA_3D_CMD_MAX)
             return false;
 
         cmd_id -= SVGA_3D_CMD_BASE;
         entry = &vmw_cmd_entries[cmd_id];
         *cmd = entry->cmd_name;
         return true;
     }
 
     switch (cmd_id) {
     case SVGA_CMD_UPDATE:
         *cmd = "SVGA_CMD_UPDATE";
         *size = sizeof(u32) + sizeof(SVGAFifoCmdUpdate);
         break;
     case SVGA_CMD_DEFINE_GMRFB:
         *cmd = "SVGA_CMD_DEFINE_GMRFB";
         *size = sizeof(u32) + sizeof(SVGAFifoCmdDefineGMRFB);
         break;
     case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
         *cmd = "SVGA_CMD_BLIT_GMRFB_TO_SCREEN";
         *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
         break;
     case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
         *cmd = "SVGA_CMD_BLIT_SCREEN_TO_GMRFB";
         *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
         break;
     default:
         *cmd = "UNKNOWN";
         *size = 0;
         return false;
     }
 
     return true;
 }
 
 static int vmw_cmd_check(struct vmw_private *dev_priv,
              struct vmw_sw_context *sw_context, void *buf,
              uint32_t *size)
 {
     uint32_t cmd_id;
     uint32_t size_remaining = *size;
     SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
     int ret;
     const struct vmw_cmd_entry *entry;
     bool gb = dev_priv->capabilities & SVGA_CAP_GBOBJECTS;
 
     cmd_id = ((uint32_t *)buf)[0];
     /* Handle any none 3D commands */
     if (unlikely(cmd_id < SVGA_CMD_MAX))
         return vmw_cmd_check_not_3d(dev_priv, sw_context, buf, size);
 
 
     cmd_id = header->id;
     *size = header->size + sizeof(SVGA3dCmdHeader);
 
     cmd_id -= SVGA_3D_CMD_BASE;
     if (unlikely(*size > size_remaining))
         goto out_invalid;
 
     if (unlikely(cmd_id >= SVGA_3D_CMD_MAX - SVGA_3D_CMD_BASE))
         goto out_invalid;
 
     entry = &vmw_cmd_entries[cmd_id];
     if (unlikely(!entry->func))
         goto out_invalid;
 
     if (unlikely(!entry->user_allow && !sw_context->kernel))
         goto out_privileged;
 
     if (unlikely(entry->gb_disable && gb))
         goto out_old;
 
     if (unlikely(entry->gb_enable && !gb))
         goto out_new;
 
     ret = entry->func(dev_priv, sw_context, header);
     if (unlikely(ret != 0)) {
         VMW_DEBUG_USER("SVGA3D command: %d failed with error %d\n",
                    cmd_id + SVGA_3D_CMD_BASE, ret);
         return ret;
     }
 
     return 0;
 out_invalid:
     VMW_DEBUG_USER("Invalid SVGA3D command: %d\n",
                cmd_id + SVGA_3D_CMD_BASE);
     return -EINVAL;
 out_privileged:
     VMW_DEBUG_USER("Privileged SVGA3D command: %d\n",
                cmd_id + SVGA_3D_CMD_BASE);
     return -EPERM;
 out_old:
     VMW_DEBUG_USER("Deprecated (disallowed) SVGA3D command: %d\n",
                cmd_id + SVGA_3D_CMD_BASE);
     return -EINVAL;
 out_new:
     VMW_DEBUG_USER("SVGA3D command: %d not supported by virtual device.\n",
                cmd_id + SVGA_3D_CMD_BASE);
     return -EINVAL;
 }
 
 static int vmw_cmd_check_all(struct vmw_private *dev_priv,
                  struct vmw_sw_context *sw_context, void *buf,
                  uint32_t size)
 {
     int32_t cur_size = size;
     int ret;
 
     sw_context->buf_start = buf;
 
     while (cur_size > 0) {
         size = cur_size;
         ret = vmw_cmd_check(dev_priv, sw_context, buf, &size);
         if (unlikely(ret != 0))
             return ret;
         buf = (void *)((unsigned long) buf + size);
         cur_size -= size;
     }
 
     if (unlikely(cur_size != 0)) {
         VMW_DEBUG_USER("Command verifier out of sync.\n");
         return -EINVAL;
     }
 
     return 0;
 }
 
 static void vmw_free_relocations(struct vmw_sw_context *sw_context)
 {
     /* Memory is validation context memory, so no need to free it */
     INIT_LIST_HEAD(&sw_context->bo_relocations);
 }
 
 static void vmw_apply_relocations(struct vmw_sw_context *sw_context)
 {
     struct vmw_relocation *reloc;
     struct ttm_buffer_object *bo;
 
     list_for_each_entry(reloc, &sw_context->bo_relocations, head) {
         bo = &reloc->vbo->base;
         switch (bo->resource->mem_type) {
         case TTM_PL_VRAM:
             reloc->location->offset += bo->resource->start << PAGE_SHIFT;
             reloc->location->gmrId = SVGA_GMR_FRAMEBUFFER;
             break;
         case VMW_PL_GMR:
             reloc->location->gmrId = bo->resource->start;
             break;
         case VMW_PL_MOB:
             *reloc->mob_loc = bo->resource->start;
             break;
         default:
             BUG();
         }
     }
     vmw_free_relocations(sw_context);
 }
 
 static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context,
                  uint32_t size)
 {
     if (likely(sw_context->cmd_bounce_size >= size))
         return 0;
 
     if (sw_context->cmd_bounce_size == 0)
         sw_context->cmd_bounce_size = VMWGFX_CMD_BOUNCE_INIT_SIZE;
 
     while (sw_context->cmd_bounce_size < size) {
         sw_context->cmd_bounce_size =
             PAGE_ALIGN(sw_context->cmd_bounce_size +
                    (sw_context->cmd_bounce_size >> 1));
     }
 
     vfree(sw_context->cmd_bounce);
     sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size);
 
     if (sw_context->cmd_bounce == NULL) {
         VMW_DEBUG_USER("Failed to allocate command bounce buffer.\n");
         sw_context->cmd_bounce_size = 0;
         return -ENOMEM;
     }
 
     return 0;
 }
 
 /*
  * vmw_execbuf_fence_commands - create and submit a command stream fence
  *
  * Creates a fence object and submits a command stream marker.
  * If this fails for some reason, We sync the fifo and return NULL.
  * It is then safe to fence buffers with a NULL pointer.
  *
  * If @p_handle is not NULL @file_priv must also not be NULL. Creates a
  * userspace handle if @p_handle is not NULL, otherwise not.
  */
 
 int vmw_execbuf_fence_commands(struct drm_file *file_priv,
                    struct vmw_private *dev_priv,
                    struct vmw_fence_obj **p_fence,
                    uint32_t *p_handle)
 {
     uint32_t sequence;
     int ret;
     bool synced = false;
 
     /* p_handle implies file_priv. */
     BUG_ON(p_handle != NULL && file_priv == NULL);
 
     ret = vmw_cmd_send_fence(dev_priv, &sequence);
     if (unlikely(ret != 0)) {
         VMW_DEBUG_USER("Fence submission error. Syncing.\n");
         synced = true;
     }
 
     if (p_handle != NULL)
         ret = vmw_user_fence_create(file_priv, dev_priv->fman,
                         sequence, p_fence, p_handle);
     else
         ret = vmw_fence_create(dev_priv->fman, sequence, p_fence);
 
     if (unlikely(ret != 0 && !synced)) {
         (void) vmw_fallback_wait(dev_priv, false, false, sequence,
                      false, VMW_FENCE_WAIT_TIMEOUT);
         *p_fence = NULL;
     }
 
     return ret;
 }
 
 /**
  * vmw_execbuf_copy_fence_user - copy fence object information to user-space.
  *
  * @dev_priv: Pointer to a vmw_private struct.
  * @vmw_fp: Pointer to the struct vmw_fpriv representing the calling file.
  * @ret: Return value from fence object creation.
  * @user_fence_rep: User space address of a struct drm_vmw_fence_rep to which
  * the information should be copied.
  * @fence: Pointer to the fenc object.
  * @fence_handle: User-space fence handle.
  * @out_fence_fd: exported file descriptor for the fence.  -1 if not used
  * @sync_file:  Only used to clean up in case of an error in this function.
  *
  * This function copies fence information to user-space. If copying fails, the
  * user-space struct drm_vmw_fence_rep::error member is hopefully left
  * untouched, and if it's preloaded with an -EFAULT by user-space, the error
  * will hopefully be detected.
  *
  * Also if copying fails, user-space will be unable to signal the fence object
  * so we wait for it immediately, and then unreference the user-space reference.
  */
 int
 vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
                 struct vmw_fpriv *vmw_fp, int ret,
                 struct drm_vmw_fence_rep __user *user_fence_rep,
                 struct vmw_fence_obj *fence, uint32_t fence_handle,
                 int32_t out_fence_fd)
 {
     struct drm_vmw_fence_rep fence_rep;
 
     if (user_fence_rep == NULL)
         return 0;
 
     memset(&fence_rep, 0, sizeof(fence_rep));
 
     fence_rep.error = ret;
     fence_rep.fd = out_fence_fd;
     if (ret == 0) {
         BUG_ON(fence == NULL);
 
         fence_rep.handle = fence_handle;
         fence_rep.seqno = fence->base.seqno;
         vmw_update_seqno(dev_priv);
         fence_rep.passed_seqno = dev_priv->last_read_seqno;
     }
 
     /*
      * copy_to_user errors will be detected by user space not seeing
      * fence_rep::error filled in. Typically user-space would have pre-set
      * that member to -EFAULT.
      */
     ret = copy_to_user(user_fence_rep, &fence_rep,
                sizeof(fence_rep));
 
     /*
      * User-space lost the fence object. We need to sync and unreference the
      * handle.
      */
     if (unlikely(ret != 0) && (fence_rep.error == 0)) {
         ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle);
         VMW_DEBUG_USER("Fence copy error. Syncing.\n");
         (void) vmw_fence_obj_wait(fence, false, false,
                       VMW_FENCE_WAIT_TIMEOUT);
     }
 
     return ret ? -EFAULT : 0;
 }
 
 /**
  * vmw_execbuf_submit_fifo - Patch a command batch and submit it using the fifo.
  *
  * @dev_priv: Pointer to a device private structure.
  * @kernel_commands: Pointer to the unpatched command batch.
  * @command_size: Size of the unpatched command batch.
  * @sw_context: Structure holding the relocation lists.
  *
  * Side effects: If this function returns 0, then the command batch pointed to
  * by @kernel_commands will have been modified.
  */
 static int vmw_execbuf_submit_fifo(struct vmw_private *dev_priv,
                    void *kernel_commands, u32 command_size,
                    struct vmw_sw_context *sw_context)
 {
     void *cmd;
 
     if (sw_context->dx_ctx_node)
         cmd = VMW_CMD_CTX_RESERVE(dev_priv, command_size,
                       sw_context->dx_ctx_node->ctx->id);
     else
         cmd = VMW_CMD_RESERVE(dev_priv, command_size);
 
     if (!cmd)
         return -ENOMEM;
 
     vmw_apply_relocations(sw_context);
     memcpy(cmd, kernel_commands, command_size);
     vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
     vmw_resource_relocations_free(&sw_context->res_relocations);
     vmw_cmd_commit(dev_priv, command_size);
 
     return 0;
 }
 
 /**
  * vmw_execbuf_submit_cmdbuf - Patch a command batch and submit it using the
  * command buffer manager.
  *
  * @dev_priv: Pointer to a device private structure.
  * @header: Opaque handle to the command buffer allocation.
  * @command_size: Size of the unpatched command batch.
  * @sw_context: Structure holding the relocation lists.
  *
  * Side effects: If this function returns 0, then the command buffer represented
  * by @header will have been modified.
  */
 static int vmw_execbuf_submit_cmdbuf(struct vmw_private *dev_priv,
                      struct vmw_cmdbuf_header *header,
                      u32 command_size,
                      struct vmw_sw_context *sw_context)
 {
     u32 id = ((sw_context->dx_ctx_node) ? sw_context->dx_ctx_node->ctx->id :
           SVGA3D_INVALID_ID);
     void *cmd = vmw_cmdbuf_reserve(dev_priv->cman, command_size, id, false,
                        header);
 
     vmw_apply_relocations(sw_context);
     vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
     vmw_resource_relocations_free(&sw_context->res_relocations);
     vmw_cmdbuf_commit(dev_priv->cman, command_size, header, false);
 
     return 0;
 }
 
 /**
  * vmw_execbuf_cmdbuf - Prepare, if possible, a user-space command batch for
  * submission using a command buffer.
  *
  * @dev_priv: Pointer to a device private structure.
  * @user_commands: User-space pointer to the commands to be submitted.
  * @command_size: Size of the unpatched command batch.
  * @header: Out parameter returning the opaque pointer to the command buffer.
  *
  * This function checks whether we can use the command buffer manager for
  * submission and if so, creates a command buffer of suitable size and copies
  * the user data into that buffer.
  *
  * On successful return, the function returns a pointer to the data in the
  * command buffer and *@header is set to non-NULL.
  *
  * @kernel_commands: If command buffers could not be used, the function will
  * return the value of @kernel_commands on function call. That value may be
  * NULL. In that case, the value of *@header will be set to NULL.
  *
  * If an error is encountered, the function will return a pointer error value.
  * If the function is interrupted by a signal while sleeping, it will return
  * -ERESTARTSYS casted to a pointer error value.
  */
 static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv,
                 void __user *user_commands,
                 void *kernel_commands, u32 command_size,
                 struct vmw_cmdbuf_header **header)
 {
     size_t cmdbuf_size;
     int ret;
 
     *header = NULL;
     if (command_size > SVGA_CB_MAX_SIZE) {
         VMW_DEBUG_USER("Command buffer is too large.\n");
         return ERR_PTR(-EINVAL);
     }
 
     if (!dev_priv->cman || kernel_commands)
         return kernel_commands;
 
     /* If possible, add a little space for fencing. */
     cmdbuf_size = command_size + 512;
     cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
     kernel_commands = vmw_cmdbuf_alloc(dev_priv->cman, cmdbuf_size, true,
                        header);
     if (IS_ERR(kernel_commands))
         return kernel_commands;
 
     ret = copy_from_user(kernel_commands, user_commands, command_size);
     if (ret) {
         VMW_DEBUG_USER("Failed copying commands.\n");
         vmw_cmdbuf_header_free(*header);
         *header = NULL;
         return ERR_PTR(-EFAULT);
     }
 
     return kernel_commands;
 }
 
 static int vmw_execbuf_tie_context(struct vmw_private *dev_priv,
                    struct vmw_sw_context *sw_context,
                    uint32_t handle)
 {
     struct vmw_resource *res;
     int ret;
     unsigned int size;
 
     if (handle == SVGA3D_INVALID_ID)
         return 0;
 
     size = vmw_execbuf_res_size(dev_priv, vmw_res_dx_context);
     ret = vmw_validation_preload_res(sw_context->ctx, size);
     if (ret)
         return ret;
 
     res = vmw_user_resource_noref_lookup_handle
         (dev_priv, sw_context->fp->tfile, handle,
          user_context_converter);
     if (IS_ERR(res)) {
         VMW_DEBUG_USER("Could not find or user DX context 0x%08x.\n",
                    (unsigned int) handle);
         return PTR_ERR(res);
     }
 
     ret = vmw_execbuf_res_noref_val_add(sw_context, res, VMW_RES_DIRTY_SET);
     if (unlikely(ret != 0))
         return ret;
 
     sw_context->dx_ctx_node = vmw_execbuf_info_from_res(sw_context, res);
     sw_context->man = vmw_context_res_man(res);
 
     return 0;
 }
 
 int vmw_execbuf_process(struct drm_file *file_priv,
             struct vmw_private *dev_priv,
             void __user *user_commands, void *kernel_commands,
             uint32_t command_size, uint64_t throttle_us,
             uint32_t dx_context_handle,
             struct drm_vmw_fence_rep __user *user_fence_rep,
             struct vmw_fence_obj **out_fence, uint32_t flags)
 {
     struct vmw_sw_context *sw_context = &dev_priv->ctx;
     struct vmw_fence_obj *fence = NULL;
     struct vmw_cmdbuf_header *header;
     uint32_t handle = 0;
     int ret;
     int32_t out_fence_fd = -1;
     struct sync_file *sync_file = NULL;
     DECLARE_VAL_CONTEXT(val_ctx, &sw_context->res_ht, 1);
 
     if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
         out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
         if (out_fence_fd < 0) {
             VMW_DEBUG_USER("Failed to get a fence fd.\n");
             return out_fence_fd;
         }
     }
 
     if (throttle_us) {
         VMW_DEBUG_USER("Throttling is no longer supported.\n");
     }
 
     kernel_commands = vmw_execbuf_cmdbuf(dev_priv, user_commands,
                          kernel_commands, command_size,
                          &header);
     if (IS_ERR(kernel_commands)) {
         ret = PTR_ERR(kernel_commands);
         goto out_free_fence_fd;
     }
 
     ret = mutex_lock_interruptible(&dev_priv->cmdbuf_mutex);
     if (ret) {
         ret = -ERESTARTSYS;
         goto out_free_header;
     }
 
     sw_context->kernel = false;
     if (kernel_commands == NULL) {
         ret = vmw_resize_cmd_bounce(sw_context, command_size);
         if (unlikely(ret != 0))
             goto out_unlock;
 
         ret = copy_from_user(sw_context->cmd_bounce, user_commands,
                      command_size);
         if (unlikely(ret != 0)) {
             ret = -EFAULT;
             VMW_DEBUG_USER("Failed copying commands.\n");
             goto out_unlock;
         }
 
         kernel_commands = sw_context->cmd_bounce;
     } else if (!header) {
         sw_context->kernel = true;
     }
 
     sw_context->filp = file_priv;
     sw_context->fp = vmw_fpriv(file_priv);
     INIT_LIST_HEAD(&sw_context->ctx_list);
     sw_context->cur_query_bo = dev_priv->pinned_bo;
     sw_context->last_query_ctx = NULL;
     sw_context->needs_post_query_barrier = false;
     sw_context->dx_ctx_node = NULL;
     sw_context->dx_query_mob = NULL;
     sw_context->dx_query_ctx = NULL;
     memset(sw_context->res_cache, 0, sizeof(sw_context->res_cache));
     INIT_LIST_HEAD(&sw_context->res_relocations);
     INIT_LIST_HEAD(&sw_context->bo_relocations);
 
     if (sw_context->staged_bindings)
         vmw_binding_state_reset(sw_context->staged_bindings);
 
     if (!sw_context->res_ht_initialized) {
         ret = vmwgfx_ht_create(&sw_context->res_ht, VMW_RES_HT_ORDER);
         if (unlikely(ret != 0))
             goto out_unlock;
 
         sw_context->res_ht_initialized = true;
     }
 
     INIT_LIST_HEAD(&sw_context->staged_cmd_res);
     sw_context->ctx = &val_ctx;
     ret = vmw_execbuf_tie_context(dev_priv, sw_context, dx_context_handle);
     if (unlikely(ret != 0))
         goto out_err_nores;
 
     ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
                 command_size);
     if (unlikely(ret != 0))
         goto out_err_nores;
 
     ret = vmw_resources_reserve(sw_context);
     if (unlikely(ret != 0))
         goto out_err_nores;
 
     ret = vmw_validation_bo_reserve(&val_ctx, true);
     if (unlikely(ret != 0))
         goto out_err_nores;
 
     ret = vmw_validation_bo_validate(&val_ctx, true);
     if (unlikely(ret != 0))
         goto out_err;
 
     ret = vmw_validation_res_validate(&val_ctx, true);
     if (unlikely(ret != 0))
         goto out_err;
 
     vmw_validation_drop_ht(&val_ctx);
 
     ret = mutex_lock_interruptible(&dev_priv->binding_mutex);
     if (unlikely(ret != 0)) {
         ret = -ERESTARTSYS;
         goto out_err;
     }
 
     if (dev_priv->has_mob) {
         ret = vmw_rebind_contexts(sw_context);
         if (unlikely(ret != 0))
             goto out_unlock_binding;
     }
 
     if (!header) {
         ret = vmw_execbuf_submit_fifo(dev_priv, kernel_commands,
                           command_size, sw_context);
     } else {
         ret = vmw_execbuf_submit_cmdbuf(dev_priv, header, command_size,
                         sw_context);
         header = NULL;
     }
     mutex_unlock(&dev_priv->binding_mutex);
     if (ret)
         goto out_err;
 
     vmw_query_bo_switch_commit(dev_priv, sw_context);
     ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
                      (user_fence_rep) ? &handle : NULL);
     /*
      * This error is harmless, because if fence submission fails,
      * vmw_fifo_send_fence will sync. The error will be propagated to
      * user-space in @fence_rep
      */
     if (ret != 0)
         VMW_DEBUG_USER("Fence submission error. Syncing.\n");
 
     vmw_execbuf_bindings_commit(sw_context, false);
     vmw_bind_dx_query_mob(sw_context);
     vmw_validation_res_unreserve(&val_ctx, false);
 
     vmw_validation_bo_fence(sw_context->ctx, fence);
 
     if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
         __vmw_execbuf_release_pinned_bo(dev_priv, fence);
 
     /*
      * If anything fails here, give up trying to export the fence and do a
      * sync since the user mode will not be able to sync the fence itself.
      * This ensures we are still functionally correct.
      */
     if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
 
         sync_file = sync_file_create(&fence->base);
         if (!sync_file) {
             VMW_DEBUG_USER("Sync file create failed for fence\n");
             put_unused_fd(out_fence_fd);
             out_fence_fd = -1;
 
             (void) vmw_fence_obj_wait(fence, false, false,
                           VMW_FENCE_WAIT_TIMEOUT);
         }
     }
 
     ret = vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
                     user_fence_rep, fence, handle, out_fence_fd);
 
     if (sync_file) {
         if (ret) {
             /* usercopy of fence failed, put the file object */
             fput(sync_file->file);
             put_unused_fd(out_fence_fd);
         } else {
             /* Link the fence with the FD created earlier */
             fd_install(out_fence_fd, sync_file->file);
         }
     }
 
     /* Don't unreference when handing fence out */
     if (unlikely(out_fence != NULL)) {
         *out_fence = fence;
         fence = NULL;
     } else if (likely(fence != NULL)) {
         vmw_fence_obj_unreference(&fence);
     }
 
     vmw_cmdbuf_res_commit(&sw_context->staged_cmd_res);
     mutex_unlock(&dev_priv->cmdbuf_mutex);
 
     /*
      * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
      * in resource destruction paths.
      */
     vmw_validation_unref_lists(&val_ctx);
 
     return ret;
 
 out_unlock_binding:
     mutex_unlock(&dev_priv->binding_mutex);
 out_err:
     vmw_validation_bo_backoff(&val_ctx);
 out_err_nores:
     vmw_execbuf_bindings_commit(sw_context, true);
     vmw_validation_res_unreserve(&val_ctx, true);
     vmw_resource_relocations_free(&sw_context->res_relocations);
     vmw_free_relocations(sw_context);
     if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
         __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
 out_unlock:
     vmw_cmdbuf_res_revert(&sw_context->staged_cmd_res);
     vmw_validation_drop_ht(&val_ctx);
     WARN_ON(!list_empty(&sw_context->ctx_list));
     mutex_unlock(&dev_priv->cmdbuf_mutex);
 
     /*
      * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
      * in resource destruction paths.
      */
     vmw_validation_unref_lists(&val_ctx);
 out_free_header:
     if (header)
         vmw_cmdbuf_header_free(header);
 out_free_fence_fd:
     if (out_fence_fd >= 0)
         put_unused_fd(out_fence_fd);
 
     return ret;
 }
 
 /**
  * vmw_execbuf_unpin_panic - Idle the fifo and unpin the query buffer.
  *
  * @dev_priv: The device private structure.
  *
  * This function is called to idle the fifo and unpin the query buffer if the
  * normal way to do this hits an error, which should typically be extremely
  * rare.
  */
 static void vmw_execbuf_unpin_panic(struct vmw_private *dev_priv)
 {
     VMW_DEBUG_USER("Can't unpin query buffer. Trying to recover.\n");
 
     (void) vmw_fallback_wait(dev_priv, false, true, 0, false, 10*HZ);
     vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
     if (dev_priv->dummy_query_bo_pinned) {
         vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
         dev_priv->dummy_query_bo_pinned = false;
     }
 }
 
 
 /**
  * __vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query
  * bo.
  *
  * @dev_priv: The device private structure.
  * @fence: If non-NULL should point to a struct vmw_fence_obj issued _after_ a
  * query barrier that flushes all queries touching the current buffer pointed to
  * by @dev_priv->pinned_bo
  *
  * This function should be used to unpin the pinned query bo, or as a query
  * barrier when we need to make sure that all queries have finished before the
  * next fifo command. (For example on hardware context destructions where the
  * hardware may otherwise leak unfinished queries).
  *
  * This function does not return any failure codes, but make attempts to do safe
  * unpinning in case of errors.
  *
  * The function will synchronize on the previous query barrier, and will thus
  * not finish until that barrier has executed.
  *
  * the @dev_priv->cmdbuf_mutex needs to be held by the current thread before
  * calling this function.
  */
 void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
                      struct vmw_fence_obj *fence)
 {
     int ret = 0;
     struct vmw_fence_obj *lfence = NULL;
     DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
 
     if (dev_priv->pinned_bo == NULL)
         goto out_unlock;
 
     ret = vmw_validation_add_bo(&val_ctx, dev_priv->pinned_bo, false,
                     false);
     if (ret)
         goto out_no_reserve;
 
     ret = vmw_validation_add_bo(&val_ctx, dev_priv->dummy_query_bo, false,
                     false);
     if (ret)
         goto out_no_reserve;
 
     ret = vmw_validation_bo_reserve(&val_ctx, false);
     if (ret)
         goto out_no_reserve;
 
     if (dev_priv->query_cid_valid) {
         BUG_ON(fence != NULL);
         ret = vmw_cmd_emit_dummy_query(dev_priv, dev_priv->query_cid);
         if (ret)
             goto out_no_emit;
         dev_priv->query_cid_valid = false;
     }
 
     vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
     if (dev_priv->dummy_query_bo_pinned) {
         vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
         dev_priv->dummy_query_bo_pinned = false;
     }
     if (fence == NULL) {
         (void) vmw_execbuf_fence_commands(NULL, dev_priv, &lfence,
                           NULL);
         fence = lfence;
     }
     vmw_validation_bo_fence(&val_ctx, fence);
     if (lfence != NULL)
         vmw_fence_obj_unreference(&lfence);
 
     vmw_validation_unref_lists(&val_ctx);
     vmw_bo_unreference(&dev_priv->pinned_bo);
 
 out_unlock:
     return;
 out_no_emit:
     vmw_validation_bo_backoff(&val_ctx);
 out_no_reserve:
     vmw_validation_unref_lists(&val_ctx);
     vmw_execbuf_unpin_panic(dev_priv);
     vmw_bo_unreference(&dev_priv->pinned_bo);
 }
 
 /**
  * vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query bo.
  *
  * @dev_priv: The device private structure.
  *
  * This function should be used to unpin the pinned query bo, or as a query
  * barrier when we need to make sure that all queries have finished before the
  * next fifo command. (For example on hardware context destructions where the
  * hardware may otherwise leak unfinished queries).
  *
  * This function does not return any failure codes, but make attempts to do safe
  * unpinning in case of errors.
  *
  * The function will synchronize on the previous query barrier, and will thus
  * not finish until that barrier has executed.
  */
 void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv)
 {
     mutex_lock(&dev_priv->cmdbuf_mutex);
     if (dev_priv->query_cid_valid)
         __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
     mutex_unlock(&dev_priv->cmdbuf_mutex);
 }
 
 int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
               struct drm_file *file_priv)
 {
     struct vmw_private *dev_priv = vmw_priv(dev);
     struct drm_vmw_execbuf_arg *arg = data;
     int ret;
     struct dma_fence *in_fence = NULL;
 
     MKS_STAT_TIME_DECL(MKSSTAT_KERN_EXECBUF);
     MKS_STAT_TIME_PUSH(MKSSTAT_KERN_EXECBUF);
 
     /*
      * Extend the ioctl argument while maintaining backwards compatibility:
      * We take different code paths depending on the value of arg->version.
      *
      * Note: The ioctl argument is extended and zeropadded by core DRM.
      */
     if (unlikely(arg->version > DRM_VMW_EXECBUF_VERSION ||
              arg->version == 0)) {
         VMW_DEBUG_USER("Incorrect execbuf version.\n");
         ret = -EINVAL;
         goto mksstats_out;
     }
 
     switch (arg->version) {
     case 1:
         /* For v1 core DRM have extended + zeropadded the data */
         arg->context_handle = (uint32_t) -1;
         break;
     case 2:
     default:
         /* For v2 and later core DRM would have correctly copied it */
         break;
     }
 
     /* If imported a fence FD from elsewhere, then wait on it */
     if (arg->flags & DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD) {
         in_fence = sync_file_get_fence(arg->imported_fence_fd);
 
         if (!in_fence) {
             VMW_DEBUG_USER("Cannot get imported fence\n");
             ret = -EINVAL;
             goto mksstats_out;
         }
 
         ret = dma_fence_wait(in_fence, true);
         if (ret)
             goto out;
     }
 
     ret = vmw_execbuf_process(file_priv, dev_priv,
                   (void __user *)(unsigned long)arg->commands,
                   NULL, arg->command_size, arg->throttle_us,
                   arg->context_handle,
                   (void __user *)(unsigned long)arg->fence_rep,
                   NULL, arg->flags);
 
     if (unlikely(ret != 0))
         goto out;
 
     vmw_kms_cursor_post_execbuf(dev_priv);
 
 out:
     if (in_fence)
         dma_fence_put(in_fence);
 
 mksstats_out:
     MKS_STAT_TIME_POP(MKSSTAT_KERN_EXECBUF);
     return ret;
 }