acpi_status acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op) { acpi_status status; union acpi_operand_object *obj_desc; union acpi_operand_object **operand; struct acpi_namespace_node *node; union acpi_parse_object *next_op; u32 table_index; struct acpi_table_header *table; ACPI_FUNCTION_TRACE_PTR(ds_eval_table_region_operands, op); /* * This is where we evaluate the Signature string, oem_id string, * and oem_table_id string of the Data Table Region declaration */ node = op->common.node; /* next_op points to Signature string op */ next_op = op->common.value.arg; /* * Evaluate/create the Signature string, oem_id string, * and oem_table_id string operands */ status = acpi_ds_create_operands(walk_state, next_op); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } /* * Resolve the Signature string, oem_id string, * and oem_table_id string operands */ status = acpi_ex_resolve_operands(op->common.aml_opcode, ACPI_WALK_OPERANDS, walk_state); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } operand = &walk_state->operands[0]; /* Find the ACPI table */ status = acpi_tb_find_table(operand[0]->string.pointer, operand[1]->string.pointer, operand[2]->string.pointer, &table_index); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } acpi_ut_remove_reference(operand[0]); acpi_ut_remove_reference(operand[1]); acpi_ut_remove_reference(operand[2]); status = acpi_get_table_by_index(table_index, &table); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { return_ACPI_STATUS(AE_NOT_EXIST); } obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table); obj_desc->region.length = table->length; ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", obj_desc, ACPI_FORMAT_UINT64(obj_desc->region.address), obj_desc->region.length)); /* Now the address and length are valid for this opregion */ obj_desc->region.flags |= AOPOBJ_DATA_VALID; return_ACPI_STATUS(status); }
acpi_status acpi_ex_load_table_op(struct acpi_walk_state *walk_state, union acpi_operand_object **return_desc) { acpi_status status; union acpi_operand_object **operand = &walk_state->operands[0]; struct acpi_table_header *table; struct acpi_namespace_node *parent_node; struct acpi_namespace_node *start_node; struct acpi_namespace_node *parameter_node = NULL; union acpi_operand_object *ddb_handle; ACPI_FUNCTION_TRACE(ex_load_table_op); #if 0 /* * Make sure that the signature does not match one of the tables that * is already loaded. */ status = acpi_tb_match_signature(operand[0]->string.pointer, NULL); if (status == AE_OK) { /* Signature matched -- don't allow override */ return_ACPI_STATUS(AE_ALREADY_EXISTS); } #endif /* Find the ACPI table */ status = acpi_tb_find_table(operand[0]->string.pointer, operand[1]->string.pointer, operand[2]->string.pointer, &table); if (ACPI_FAILURE(status)) { if (status != AE_NOT_FOUND) { return_ACPI_STATUS(status); } /* Table not found, return an Integer=0 and AE_OK */ ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); if (!ddb_handle) { return_ACPI_STATUS(AE_NO_MEMORY); } ddb_handle->integer.value = 0; *return_desc = ddb_handle; return_ACPI_STATUS(AE_OK); } /* Default nodes */ start_node = walk_state->scope_info->scope.node; parent_node = acpi_gbl_root_node; /* root_path (optional parameter) */ if (operand[3]->string.length > 0) { /* * Find the node referenced by the root_path_string. This is the * location within the namespace where the table will be loaded. */ status = acpi_ns_get_node(start_node, operand[3]->string.pointer, ACPI_NS_SEARCH_PARENT, &parent_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } } /* parameter_path (optional parameter) */ if (operand[4]->string.length > 0) { if ((operand[4]->string.pointer[0] != '\\') && (operand[4]->string.pointer[0] != '^')) { /* * Path is not absolute, so it will be relative to the node * referenced by the root_path_string (or the NS root if omitted) */ start_node = parent_node; } /* Find the node referenced by the parameter_path_string */ status = acpi_ns_get_node(start_node, operand[4]->string.pointer, ACPI_NS_SEARCH_PARENT, ¶meter_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } } /* Load the table into the namespace */ status = acpi_ex_add_table(table, parent_node, &ddb_handle); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } /* Parameter Data (optional) */ if (parameter_node) { /* Store the parameter data into the optional parameter object */ status = acpi_ex_store(operand[5], ACPI_CAST_PTR(union acpi_operand_object, parameter_node), walk_state); if (ACPI_FAILURE(status)) { (void)acpi_ex_unload_table(ddb_handle); return_ACPI_STATUS(status); } } ACPI_INFO((AE_INFO, "Dynamic OEM Table Load - [%4.4s] OemId [%6.6s] OemTableId [%8.8s]", table->signature, table->oem_id, table->oem_table_id)); *return_desc = ddb_handle; return_ACPI_STATUS(status); }
acpi_status acpi_ex_load_table_op(struct acpi_walk_state *walk_state, union acpi_operand_object **return_desc) { acpi_status status; union acpi_operand_object **operand = &walk_state->operands[0]; struct acpi_namespace_node *parent_node; struct acpi_namespace_node *start_node; struct acpi_namespace_node *parameter_node = NULL; union acpi_operand_object *ddb_handle; struct acpi_table_header *table; u32 table_index; ACPI_FUNCTION_TRACE(ex_load_table_op); /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */ if ((operand[0]->string.length > ACPI_NAME_SIZE) || (operand[1]->string.length > ACPI_OEM_ID_SIZE) || (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Find the ACPI table in the RSDT/XSDT */ status = acpi_tb_find_table(operand[0]->string.pointer, operand[1]->string.pointer, operand[2]->string.pointer, &table_index); if (ACPI_FAILURE(status)) { if (status != AE_NOT_FOUND) { return_ACPI_STATUS(status); } /* Table not found, return an Integer=0 and AE_OK */ ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); if (!ddb_handle) { return_ACPI_STATUS(AE_NO_MEMORY); } ddb_handle->integer.value = 0; *return_desc = ddb_handle; return_ACPI_STATUS(AE_OK); } /* Default nodes */ start_node = walk_state->scope_info->scope.node; parent_node = acpi_gbl_root_node; /* root_path (optional parameter) */ if (operand[3]->string.length > 0) { /* * Find the node referenced by the root_path_string. This is the * location within the namespace where the table will be loaded. */ status = acpi_ns_get_node(start_node, operand[3]->string.pointer, ACPI_NS_SEARCH_PARENT, &parent_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } } /* parameter_path (optional parameter) */ if (operand[4]->string.length > 0) { if ((operand[4]->string.pointer[0] != '\\') && (operand[4]->string.pointer[0] != '^')) { /* * Path is not absolute, so it will be relative to the node * referenced by the root_path_string (or the NS root if omitted) */ start_node = parent_node; } /* Find the node referenced by the parameter_path_string */ status = acpi_ns_get_node(start_node, operand[4]->string.pointer, ACPI_NS_SEARCH_PARENT, ¶meter_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } } /* Load the table into the namespace */ status = acpi_ex_add_table(table_index, parent_node, &ddb_handle); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } /* Parameter Data (optional) */ if (parameter_node) { /* Store the parameter data into the optional parameter object */ status = acpi_ex_store(operand[5], ACPI_CAST_PTR(union acpi_operand_object, parameter_node), walk_state); if (ACPI_FAILURE(status)) { (void)acpi_ex_unload_table(ddb_handle); return_ACPI_STATUS(status); } } status = acpi_get_table_by_index(table_index, &table); if (ACPI_SUCCESS(status)) { ACPI_INFO((AE_INFO, "Dynamic OEM Table Load - [%.4s] OemId [%.6s] OemTableId [%.8s]", table->signature, table->oem_id, table->oem_table_id)); } /* Invoke table handler if present */ if (acpi_gbl_table_handler) { (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table, acpi_gbl_table_handler_context); } *return_desc = ddb_handle; return_ACPI_STATUS(status); }