1 files changed, 54 insertions, 36 deletions

diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h
index b8a6d6110d57..5e8095f0f78f 100644
--- a/include/acpi/acstruct.h
+++ b/include/acpi/acstruct.h
@@ -53,17 +53,25 @@
  ****************************************************************************/
 
 /*
- * Walk state - current state of a parse tree walk.  Used for both a leisurely stroll through
- * the tree (for whatever reason), and for control method execution.
+ * Walk state - current state of a parse tree walk.  Used for both a leisurely
+ * stroll through the tree (for whatever reason), and for control method
+ * execution.
  */
 #define ACPI_NEXT_OP_DOWNWARD       1
 #define ACPI_NEXT_OP_UPWARD         2
 
+/*
+ * Groups of definitions for walk_type used for different implementations of
+ * walkers (never simultaneously) - flags for interpreter:
+ */
 #define ACPI_WALK_NON_METHOD        0
-#define ACPI_WALK_METHOD            1
-#define ACPI_WALK_METHOD_RESTART    2
-#define ACPI_WALK_CONST_REQUIRED    3
-#define ACPI_WALK_CONST_OPTIONAL    4
+#define ACPI_WALK_METHOD            0x01
+#define ACPI_WALK_METHOD_RESTART    0x02
+
+/* Flags for i_aSL compiler only */
+
+#define ACPI_WALK_CONST_REQUIRED    0x10
+#define ACPI_WALK_CONST_OPTIONAL    0x20
 
 struct acpi_walk_state {
         struct acpi_walk_state *next;   /* Next walk_state in list */
@@ -134,32 +142,6 @@ struct acpi_init_walk_info {
         struct acpi_table_desc *table_desc;
 };
 
-/* Info used by acpi_ns_initialize_devices */
-
-struct acpi_device_walk_info {
-        u16 device_count;
-        u16 num_STA;
-        u16 num_INI;
-        struct acpi_table_desc *table_desc;
-};
-
-/* TBD: [Restructure] Merge with struct above */
-
-struct acpi_walk_info {
-        u32 debug_level;
-        u32 count;
-        acpi_owner_id owner_id;
-        u8 display_type;
-};
-
-/* Display Types */
-
-#define ACPI_DISPLAY_SUMMARY        (u8) 0
-#define ACPI_DISPLAY_OBJECTS        (u8) 1
-#define ACPI_DISPLAY_MASK           (u8) 1
-
-#define ACPI_DISPLAY_SHORT          (u8) 2
-
 struct acpi_get_devices_info {
         acpi_walk_callback user_function;
         void *context;
@@ -192,16 +174,21 @@ union acpi_aml_operands {
         } mid;
 };
 
-/* Internal method parameter list */
-
-struct acpi_parameter_info {
-        struct acpi_namespace_node *node;
+/*
+ * Structure used to pass object evaluation parameters.
+ * Purpose is to reduce CPU stack use.
+ */
+struct acpi_evaluate_info {
+        struct acpi_namespace_node *prefix_node;
+        char *pathname;
         union acpi_operand_object *obj_desc;
         union acpi_operand_object **parameters;
+        struct acpi_namespace_node *resolved_node;
         union acpi_operand_object *return_object;
         u8 pass_number;
         u8 parameter_type;
         u8 return_object_type;
+        u8 flags;
 };
 
 /* Types for parameter_type above */
@@ -209,4 +196,35 @@ struct acpi_parameter_info {
 #define ACPI_PARAM_ARGS                 0
 #define ACPI_PARAM_GPE                  1
 
+/* Values for Flags above */
+
+#define ACPI_IGNORE_RETURN_VALUE        1
+
+/* Info used by acpi_ns_initialize_devices */
+
+struct acpi_device_walk_info {
+        u16 device_count;
+        u16 num_STA;
+        u16 num_INI;
+        struct acpi_table_desc *table_desc;
+        struct acpi_evaluate_info *evaluate_info;
+};
+
+/* TBD: [Restructure] Merge with struct above */
+
+struct acpi_walk_info {
+        u32 debug_level;
+        u32 count;
+        acpi_owner_id owner_id;
+        u8 display_type;
+};
+
+/* Display Types */
+
+#define ACPI_DISPLAY_SUMMARY        (u8) 0
+#define ACPI_DISPLAY_OBJECTS        (u8) 1
+#define ACPI_DISPLAY_MASK           (u8) 1
+
+#define ACPI_DISPLAY_SHORT          (u8) 2
+
 #endif