1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4  * Module Name: exstore - AML Interpreter object store support
6  * Copyright (C) 2000 - 2023, Intel Corp.
35  * PARAMETERS:  *source_desc        - Value to be stored
36  *              *dest_desc          - Where to store it. Must be an NS node
39  *              walk_state          - Current walk state
46  *              the destination operand -- not just simply the actual "Store"
86 	switch (dest_desc->common.type) {  in acpi_ex_store()
93 		/* Allow stores to Constants -- a Noop as per ACPI spec */  in acpi_ex_store()
95 		if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) {  in acpi_ex_store()
106 			    "Target is not a Reference or Constant object - [%s] %p",  in acpi_ex_store()
121 	switch (ref_desc->reference.class) {  in acpi_ex_store()
124 		/* Storing an object into a Name "container" */  in acpi_ex_store()
127 						      ref_desc->reference.  in acpi_ex_store()
147 		    acpi_ds_store_object_to_local(ref_desc->reference.class,  in acpi_ex_store()
148 						  ref_desc->reference.value,  in acpi_ex_store()
155 		 * displayed and otherwise has no effect -- see ACPI Specification  in acpi_ex_store()
168 			    ref_desc->reference.class));  in acpi_ex_store()
182  * PARAMETERS:  *source_desc            - Value to be stored
183  *              *dest_desc              - Named object to receive the value
184  *              walk_state              - Current walk state
209 	switch (index_desc->reference.target_type) {  in acpi_ex_store_object_to_index()
216 		 * The object at *(index_desc->Reference.Where) is the  in acpi_ex_store_object_to_index()
218 		 * The parent package object is at index_desc->Reference.Object  in acpi_ex_store_object_to_index()
220 		obj_desc = *(index_desc->reference.where);  in acpi_ex_store_object_to_index()
222 		if (source_desc->common.type == ACPI_TYPE_LOCAL_REFERENCE &&  in acpi_ex_store_object_to_index()
223 		    source_desc->reference.class == ACPI_REFCLASS_TABLE) {  in acpi_ex_store_object_to_index()
246 					 index_desc->reference.object)->common.  in acpi_ex_store_object_to_index()
252 		*(index_desc->reference.where) = new_desc;  in acpi_ex_store_object_to_index()
254 		/* Increment ref count by the ref count of the parent package-1 */  in acpi_ex_store_object_to_index()
257 				 index_desc->reference.object)->common.  in acpi_ex_store_object_to_index()
269 		 * The first 8-bit element of the source object is written to the  in acpi_ex_store_object_to_index()
270 		 * 8-bit Buffer location defined by the Index destination object,  in acpi_ex_store_object_to_index()
279 		obj_desc = index_desc->reference.object;  in acpi_ex_store_object_to_index()
280 		if ((obj_desc->common.type != ACPI_TYPE_BUFFER) &&  in acpi_ex_store_object_to_index()
281 		    (obj_desc->common.type != ACPI_TYPE_STRING)) {  in acpi_ex_store_object_to_index()
289 		switch (source_desc->common.type) {  in acpi_ex_store_object_to_index()
292 			/* Use the least-significant byte of the integer */  in acpi_ex_store_object_to_index()
294 			value = (u8) (source_desc->integer.value);  in acpi_ex_store_object_to_index()
302 			value = source_desc->buffer.pointer[0];  in acpi_ex_store_object_to_index()
317 		obj_desc->buffer.pointer[index_desc->reference.value] = value;  in acpi_ex_store_object_to_index()
334  * PARAMETERS:  source_desc             - Value to be stored
335  *              node                    - Named object to receive the value
336  *              walk_state              - Current walk state
337  *              implicit_conversion     - Perform implicit conversion (yes/no)
354  * storing to an arg_x -- as per the rules of the ACPI spec.
385 	if (walk_state->opcode != AML_COPY_OBJECT_OP) {  in acpi_ex_store_object_to_node()
394 		 *      Integer     --> Integer (Named/Local/Arg)  in acpi_ex_store_object_to_node()
395 		 *      String      --> String  (Named/Local/Arg)  in acpi_ex_store_object_to_node()
396 		 *      Buffer      --> Buffer  (Named/Local/Arg)  in acpi_ex_store_object_to_node()
397 		 *      Package     --> Package (Named/Local/Arg)  in acpi_ex_store_object_to_node()
400 		 *      Integer     --> String or Buffer  (Named)  in acpi_ex_store_object_to_node()
401 		 *      String      --> Integer or Buffer (Named)  in acpi_ex_store_object_to_node()
402 		 *      Buffer      --> Integer or String (Named)  in acpi_ex_store_object_to_node()
411 			if (walk_state->opcode == AML_STORE_OP) {  in acpi_ex_store_object_to_node()
412 				if (source_desc->common.type !=  in acpi_ex_store_object_to_node()
438 				    acpi_ut_get_type_name(node->type),  in acpi_ex_store_object_to_node()
439 				    node->name.ascii));  in acpi_ex_store_object_to_node()
468 		if ((walk_state->opcode == AML_COPY_OBJECT_OP) ||  in acpi_ex_store_object_to_node()
502 						  new_desc->common.type);  in acpi_ex_store_object_to_node()
524 						     &walk_state->result_obj);  in acpi_ex_store_object_to_node()
532 		 * This is the ACPI spec-defined behavior for the copy_object  in acpi_ex_store_object_to_node()
548  * PARAMETERS:  source_desc             - Value to be stored
549  *              node                    - Named object to receive the value
550  *              walk_state              - Current walk state
573 			  source_desc, acpi_ut_get_type_name(node->type),  in acpi_ex_store_direct_to_node()
586 	status = acpi_ns_attach_object(node, new_desc, new_desc->common.type);  in acpi_ex_store_direct_to_node()