drm/vmwgfx/vmwgfx_so.c

38  * to it, and all context bindings of that view. Similarly we must restore
39  * the view bindings, views and surfaces pointed to by the views when a
44  * struct vmw_view - view metadata
48  * @ctx: Non-refcounted pointer to the context this view belongs to.
49  * @srf: Refcounted pointer to the surface pointed to by this view.
50  * @cotable: Refcounted pointer to the cotable holding this view.
51  * @srf_head: List head for the surface-to-view list.
54  * @view_id: User-space per context view id. Currently used also as per
55  * context device view id.
56  * @cmd_size: Size of the SVGA3D define view command that we've copied from the
58  * @committed: Whether the view is actually created or pending creation at the
60  * @cmd: The SVGA3D define view command copied from the command stream.
87 	.type_name = "DX view",
95  * struct vmw_view_define - view define command body stub
97  * @view_id: The device id of the view being defined
98  * @sid: The surface id of the view being defined
101  * saved view define command.
121  * vmw_view_commit_notify - Notify that a view operation has been committed to
124  * @res: Pointer to the view resource.
131 	struct vmw_view *view = vmw_view(res);
136 		struct vmw_surface *srf = vmw_res_to_srf(view->srf);
138 		list_add_tail(&view->srf_head, &srf->view_list);
139 		vmw_cotable_add_resource(view->cotable, &view->cotable_head);
140 		view->committed = true;
141 		res->id = view->view_id;
144 		list_del_init(&view->cotable_head);
145 		list_del_init(&view->srf_head);
146 		view->committed = false;
153  * vmw_view_create - Create a hardware view.
155  * @res: Pointer to the view resource.
157  * Create a hardware view. Typically used if that view has previously been
162 	struct vmw_view *view = vmw_view(res);
163 	struct vmw_surface *srf = vmw_res_to_srf(view->srf);
171 	if (!view->committed) {
176 	cmd = VMW_CMD_CTX_RESERVE(res->dev_priv, view->cmd_size, view->ctx->id);
182 	memcpy(cmd, &view->cmd, view->cmd_size);
183 	WARN_ON(cmd->body.view_id != view->view_id);
185 	WARN_ON(view->srf->id == SVGA3D_INVALID_ID);
186 	cmd->body.sid = view->srf->id;
187 	vmw_cmd_commit(res->dev_priv, view->cmd_size);
188 	res->id = view->view_id;
189 	list_add_tail(&view->srf_head, &srf->view_list);
190 	vmw_cotable_add_resource(view->cotable, &view->cotable_head);
197  * vmw_view_destroy - Destroy a hardware view.
199  * @res: Pointer to the view resource.
201  * Destroy a hardware view. Typically used on unexpected termination of the
202  * owning process or if the surface the view is pointing to is destroyed.
207 	struct vmw_view *view = vmw_view(res);
216 	if (!view->committed || res->id == -1)
219 	cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof(*cmd), view->ctx->id);
223 	cmd->header.id = vmw_view_destroy_cmds[view->view_type];
225 	cmd->body.view_id = view->view_id;
228 	list_del_init(&view->cotable_head);
229 	list_del_init(&view->srf_head);
235  * vmw_hw_view_destroy - Destroy a hardware view as part of resource cleanup.
237  * @res: Pointer to the view resource.
239  * Destroy a hardware view if it's still present.
252  * vmw_view_key - Compute a view key suitable for the cmdbuf resource manager
254  * @user_key: The user-space id used for the view.
255  * @view_type: The view type.
257  * Destroy a hardware view if it's still present.
265  * vmw_view_id_ok - Basic view id and type range checks.
267  * @user_key: The user-space id used for the view.
268  * @view_type: The view type.
270  * Checks that the view id and type (typically provided by user-space) is
280  * vmw_view_res_free - resource res_free callback for view resources
288 	struct vmw_view *view = vmw_view(res);
290 	vmw_resource_unreference(&view->cotable);
291 	vmw_resource_unreference(&view->srf);
292 	kfree_rcu(view, rcu);
296  * vmw_view_add - Create a view resource and stage it for addition
301  * @srf: Pointer to a struct vmw_resource identifying the surface the view
303  * @view_type: The view type deduced from the view create command.
305  * unique to the view type and to the context.
306  * @cmd: Pointer to the view create command in the command stream.
307  * @cmd_size: Size of the view create command in the command stream.
328 	struct vmw_view *view;
334 		VMW_DEBUG_USER("Illegal view create command size.\n");
339 		VMW_DEBUG_USER("Illegal view add view id.\n");
345 	view = kmalloc(size, GFP_KERNEL);
346 	if (!view) {
350 	res = &view->res;
351 	view->ctx = ctx;
352 	view->srf = vmw_resource_reference(srf);
353 	view->cotable = vmw_resource_reference
355 	view->view_type = view_type;
356 	view->view_id = user_key;
357 	view->cmd_size = cmd_size;
358 	view->committed = false;
359 	INIT_LIST_HEAD(&view->srf_head);
360 	INIT_LIST_HEAD(&view->cotable_head);
361 	memcpy(&view->cmd, cmd, cmd_size);
373 	res->id = view->view_id;
383  * vmw_view_remove - Stage a view for removal.
385  * @man: Pointer to the view manager identifying the shader namespace.
386  * @user_key: The key that is used to identify the view. The key is
387  * unique to the view type.
400 		VMW_DEBUG_USER("Illegal view remove view id.\n");
418  * a reference to the view resource. This is typically called before the
454  * vmw_view_srf - Return a non-refcounted pointer to the surface a view is
457  * @res: pointer to a view resource.
459  * Note that the view itself is holding a reference, so as long
460  * the view resource is alive, the surface resource will be.
468  * vmw_view_lookup - Look up a view.
471  * @view_type: The view type.
472  * @user_key: The view user id.
474  * returns a refcounted pointer to a view or an error pointer if not found.
485  * vmw_view_dirtying - Return whether a view type is dirtying its resource
486  * @res: Pointer to the view
489  * view pointing to it, we need to determine whether that resource will
494  * Return: Whether the view type of @res dirties the resource it points to.
504 	/* Update this function as we add more view types */
559 	/* Assert that the view key space can hold all view ids. */
563 	 * Assert that the offset of sid in all view define commands