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ACPICA: Add deferred package support for the Load and loadTable operators
Completes the support and fixes a regression introduced in
version 20180209.
The regression caused package objects that were loaded by the Load and
loadTable operators. This created an error message like the following:
[ 0.251922] ACPI Error: No pointer back to namespace node in package
00000000fd2a44cd (20180313/dsargs-303)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=199413
Fixes: 5a8361f7ec
(ACPICA: Integrate package handling with module-level code)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
parent
67b8d5c708
commit
7b34c0fb1b
3 changed files with 74 additions and 20 deletions
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@ -56,6 +56,10 @@ acpi_status acpi_ns_initialize_objects(void);
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acpi_status acpi_ns_initialize_devices(u32 flags);
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acpi_status
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acpi_ns_init_one_package(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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/*
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* nsload - Namespace loading
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*/
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@ -174,6 +174,13 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
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return_ACPI_STATUS(status);
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}
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/* Complete the initialization/resolution of package objects */
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status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT,
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ACPI_UINT32_MAX, 0,
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acpi_ns_init_one_package, NULL, NULL,
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NULL);
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/* Parameter Data (optional) */
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if (parameter_node) {
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@ -430,6 +437,13 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
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return_ACPI_STATUS(status);
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}
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/* Complete the initialization/resolution of package objects */
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status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT,
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ACPI_UINT32_MAX, 0,
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acpi_ns_init_one_package, NULL, NULL,
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NULL);
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/* Store the ddb_handle into the Target operand */
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status = acpi_ex_store(ddb_handle, target, walk_state);
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@ -240,6 +240,58 @@ acpi_status acpi_ns_initialize_devices(u32 flags)
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return_ACPI_STATUS(status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_init_one_package
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*
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* PARAMETERS: obj_handle - Node
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* level - Current nesting level
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* context - Not used
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* return_value - Not used
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*
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* RETURN: Status
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*
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* DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every package
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* within the namespace. Used during dynamic load of an SSDT.
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*
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******************************************************************************/
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acpi_status
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acpi_ns_init_one_package(acpi_handle obj_handle,
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u32 level, void *context, void **return_value)
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{
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acpi_status status;
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union acpi_operand_object *obj_desc;
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struct acpi_namespace_node *node =
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(struct acpi_namespace_node *)obj_handle;
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obj_desc = acpi_ns_get_attached_object(node);
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if (!obj_desc) {
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return (AE_OK);
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}
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/* Exit if package is already initialized */
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if (obj_desc->package.flags & AOPOBJ_DATA_VALID) {
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return (AE_OK);
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}
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status = acpi_ds_get_package_arguments(obj_desc);
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if (ACPI_FAILURE(status)) {
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return (AE_OK);
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}
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status =
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acpi_ut_walk_package_tree(obj_desc, NULL,
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acpi_ds_init_package_element, NULL);
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if (ACPI_FAILURE(status)) {
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return (AE_OK);
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}
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obj_desc->package.flags |= AOPOBJ_DATA_VALID;
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ns_init_one_object
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@ -360,27 +412,11 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
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case ACPI_TYPE_PACKAGE:
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/* Complete the initialization/resolution of the package object */
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info->package_init++;
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status = acpi_ds_get_package_arguments(obj_desc);
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if (ACPI_FAILURE(status)) {
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break;
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}
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ACPI_DEBUG_PRINT_RAW((ACPI_DB_PARSE,
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"%s: Completing resolution of Package elements\n",
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ACPI_GET_FUNCTION_NAME));
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/*
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* Resolve all named references in package objects (and all
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* sub-packages). This action has been deferred until the entire
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* namespace has been loaded, in order to support external and
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* forward references from individual package elements (05/2017).
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*/
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status = acpi_ut_walk_package_tree(obj_desc, NULL,
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acpi_ds_init_package_element,
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NULL);
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obj_desc->package.flags |= AOPOBJ_DATA_VALID;
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status =
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acpi_ns_init_one_package(obj_handle, level, NULL, NULL);
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break;
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default:
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