ACPICA: Debugger: Add a new command: "ALL <NameSeg>"

This command will execute/evaluate all objects with a match to the
<NameSeg> argument.

ACPICA commit a1a32ec054f067d1617067e2bafb0a27a8728e07

Link: https://github.com/acpica/acpica/commit/a1a32ec0
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 142 insertions, 25 deletions

diff --git a/drivers/acpi/acpica/dbmethod.c b/drivers/acpi/acpica/dbmethod.c
index 4e48a7de7413..889d13828e49 100644
--- a/drivers/acpi/acpica/dbmethod.c
+++ b/drivers/acpi/acpica/dbmethod.c
@@ -21,6 +21,8 @@ static acpi_status
 acpi_db_walk_for_execute(acpi_handle obj_handle,
 			 u32 nesting_level, void *context, void **return_value);
 
+static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_db_set_method_breakpoint
@@ -346,42 +348,26 @@ acpi_status acpi_db_disassemble_method(char *name)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_db_walk_for_execute
+ * FUNCTION:    acpi_db_evaluate_object
  *
- * PARAMETERS:  Callback from walk_namespace
+ * PARAMETERS:  node                - Namespace node for the object
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Batch execution module. Currently only executes predefined
- *              ACPI names.
+ * DESCRIPTION: Main execution function for the Evaluate/Execute/All debugger
+ *              commands.
  *
  ******************************************************************************/
 
-static acpi_status
-acpi_db_walk_for_execute(acpi_handle obj_handle,
-			 u32 nesting_level, void *context, void **return_value)
+static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node)
 {
-	struct acpi_namespace_node *node =
-	    (struct acpi_namespace_node *)obj_handle;
-	struct acpi_db_execute_walk *info =
-	    (struct acpi_db_execute_walk *)context;
-	struct acpi_buffer return_obj;
-	acpi_status status;
 	char *pathname;
 	u32 i;
 	struct acpi_device_info *obj_info;
 	struct acpi_object_list param_objects;
 	union acpi_object params[ACPI_METHOD_NUM_ARGS];
-	const union acpi_predefined_info *predefined;
-
-	predefined = acpi_ut_match_predefined_method(node->name.ascii);
-	if (!predefined) {
-		return (AE_OK);
-	}
-
-	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
-		return (AE_OK);
-	}
+	struct acpi_buffer return_obj;
+	acpi_status status;
 
 	pathname = acpi_ns_get_external_pathname(node);
 	if (!pathname) {
@@ -390,7 +376,7 @@ acpi_db_walk_for_execute(acpi_handle obj_handle,
 
 	/* Get the object info for number of method parameters */
 
-	status = acpi_get_object_info(obj_handle, &obj_info);
+	status = acpi_get_object_info(node, &obj_info);
 	if (ACPI_FAILURE(status)) {
 		ACPI_FREE(pathname);
 		return (status);
@@ -421,14 +407,67 @@ acpi_db_walk_for_execute(acpi_handle obj_handle,
 	acpi_gbl_method_executing = TRUE;
 
 	status = acpi_evaluate_object(node, NULL, &param_objects, &return_obj);
+	acpi_gbl_method_executing = FALSE;
 
 	acpi_os_printf("%-32s returned %s\n", pathname,
 		       acpi_format_exception(status));
-	acpi_gbl_method_executing = FALSE;
+	if (return_obj.length) {
+		acpi_os_printf("Evaluation of %s returned object %p, "
+			       "external buffer length %X\n",
+			       pathname, return_obj.pointer,
+			       (u32)return_obj.length);
+
+		acpi_db_dump_external_object(return_obj.pointer, 1);
+		acpi_os_printf("\n");
+	}
+
 	ACPI_FREE(pathname);
 
 	/* Ignore status from method execution */
 
+	return (AE_OK);
+
+	/* Update count, check if we have executed enough methods */
+
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_walk_for_execute
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Batch execution function. Evaluates all "predefined" objects --
+ *              the nameseg begins with an underscore.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_execute(acpi_handle obj_handle,
+			 u32 nesting_level, void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	struct acpi_db_execute_walk *info =
+	    (struct acpi_db_execute_walk *)context;
+	acpi_status status;
+	const union acpi_predefined_info *predefined;
+
+	predefined = acpi_ut_match_predefined_method(node->name.ascii);
+	if (!predefined) {
+		return (AE_OK);
+	}
+
+	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
+		return (AE_OK);
+	}
+
+	acpi_db_evaluate_object(node);
+
+	/* Ignore status from object evaluation */
+
 	status = AE_OK;
 
 	/* Update count, check if we have executed enough methods */
@@ -443,6 +482,52 @@ acpi_db_walk_for_execute(acpi_handle obj_handle,
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_db_walk_for_execute_all
+ *
+ * PARAMETERS:  Callback from walk_namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Batch execution function. Evaluates all objects whose path ends
+ *              with the nameseg "Info->NameSeg". Used for the "ALL" command.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_execute_all(acpi_handle obj_handle,
+			     u32 nesting_level,
+			     void *context, void **return_value)
+{
+	struct acpi_namespace_node *node =
+	    (struct acpi_namespace_node *)obj_handle;
+	struct acpi_db_execute_walk *info =
+	    (struct acpi_db_execute_walk *)context;
+	acpi_status status;
+
+	if (!ACPI_COMPARE_NAMESEG(node->name.ascii, info->name_seg)) {
+		return (AE_OK);
+	}
+
+	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
+		return (AE_OK);
+	}
+
+	/* Now evaluate the input object (node) */
+
+	acpi_db_evaluate_object(node);
+
+	/* Ignore status from method execution */
+
+	status = AE_OK;
+
+	/* Update count of executed methods/objects */
+
+	info->count++;
+	return (status);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_db_evaluate_predefined_names
  *
  * PARAMETERS:  None
@@ -470,3 +555,35 @@ void acpi_db_evaluate_predefined_names(void)
 	acpi_os_printf("Evaluated %u predefined names in the namespace\n",
 		       info.count);
 }
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_evaluate_all
+ *
+ * PARAMETERS:  none_acpi_gbl_db_method_info
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Namespace batch execution. Implements the "ALL" command.
+ *              Execute all namepaths whose final nameseg matches the
+ *              input nameseg.
+ *
+ ******************************************************************************/
+
+void acpi_db_evaluate_all(char *name_seg)
+{
+	struct acpi_db_execute_walk info;
+
+	info.count = 0;
+	info.max_count = ACPI_UINT32_MAX;
+	ACPI_COPY_NAMESEG(info.name_seg, name_seg);
+	info.name_seg[ACPI_NAMESEG_SIZE] = 0;
+
+	/* Search all nodes in namespace */
+
+	(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+				  ACPI_UINT32_MAX, acpi_db_walk_for_execute_all,
+				  NULL, (void *)&info, NULL);
+
+	acpi_os_printf("Evaluated %u names in the namespace\n", info.count);
+}