1 files changed, 71 insertions, 50 deletions

diff --git a/include/acpi/acstruct.h b/include/acpi/acstruct.h
index d8c1c2cdac0c..5e8095f0f78f 100644
--- a/include/acpi/acstruct.h
+++ b/include/acpi/acstruct.h
@@ -44,6 +44,8 @@
 #ifndef __ACSTRUCT_H__
 #define __ACSTRUCT_H__
 
+/* acpisrc:struct_defs -- for acpisrc conversion */
+
 /*****************************************************************************
  *
  * Tree walking typedefs and structs
@@ -51,67 +53,76 @@
  ****************************************************************************/
 
 /*
- * 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 {
-        u8 data_type;           /* To differentiate various internal objs MUST BE FIRST! */
+        struct acpi_walk_state *next;   /* Next walk_state in list */
+        u8 descriptor_type;     /* To differentiate various internal objs */
         u8 walk_type;
-        acpi_owner_id owner_id; /* Owner of objects created during the walk */
-        u8 last_predicate;      /* Result of last predicate */
-        u8 current_result;      /* */
+        u16 opcode;             /* Current AML opcode */
         u8 next_op_info;        /* Info about next_op */
         u8 num_operands;        /* Stack pointer for Operands[] array */
+        acpi_owner_id owner_id; /* Owner of objects created during the walk */
+        u8 last_predicate;      /* Result of last predicate */
+        u8 current_result;
         u8 return_used;
-        u16 opcode;             /* Current AML opcode */
         u8 scope_depth;
         u8 pass_number;         /* Parse pass during table load */
-        u32 arg_count;          /* push for fixed or var args */
         u32 aml_offset;
         u32 arg_types;
         u32 method_breakpoint;  /* For single stepping */
         u32 user_breakpoint;    /* User AML breakpoint */
         u32 parse_flags;
+
+        struct acpi_parse_state parser_state;   /* Current state of parser */
         u32 prev_arg_types;
+        u32 arg_count;          /* push for fixed or var args */
 
-        u8 *aml_last_while;
         struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS];     /* Control method arguments */
+        struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS];     /* Control method locals */
+        union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
+        union acpi_operand_object **params;
+
+        u8 *aml_last_while;
         union acpi_operand_object **caller_return_desc;
         union acpi_generic_state *control_state;        /* List of control states (nested IFs) */
         struct acpi_namespace_node *deferred_node;      /* Used when executing deferred opcodes */
         struct acpi_gpe_event_info *gpe_event_info;     /* Info for GPE (_Lxx/_Exx methods only */
         union acpi_operand_object *implicit_return_obj;
-        struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS];     /* Control method locals */
         struct acpi_namespace_node *method_call_node;   /* Called method Node */
         union acpi_parse_object *method_call_op;        /* method_call Op if running a method */
         union acpi_operand_object *method_desc; /* Method descriptor if running a method */
         struct acpi_namespace_node *method_node;        /* Method node if running a method. */
         union acpi_parse_object *op;    /* Current parser op */
-        union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
         const struct acpi_opcode_info *op_info; /* Info on current opcode */
         union acpi_parse_object *origin;        /* Start of walk [Obsolete] */
-        union acpi_operand_object **params;
-        struct acpi_parse_state parser_state;   /* Current state of parser */
         union acpi_operand_object *result_obj;
         union acpi_generic_state *results;      /* Stack of accumulated results */
         union acpi_operand_object *return_desc; /* Return object, if any */
         union acpi_generic_state *scope_info;   /* Stack of nested scopes */
-
         union acpi_parse_object *prev_op;       /* Last op that was processed */
         union acpi_parse_object *next_op;       /* next op to be processed */
+        struct acpi_thread_state *thread;
         acpi_parse_downwards descending_callback;
         acpi_parse_upwards ascending_callback;
-        struct acpi_thread_state *thread;
-        struct acpi_walk_state *next;   /* Next walk_state in list */
 };
 
 /* Info used by acpi_ps_init_objects */
@@ -131,32 +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;
@@ -189,16 +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 */
@@ -206,4 +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