ACPICA 20050708 from Bob Moore <robert.moore@intel.com>

The use of the CPU stack in the debug version of the
subsystem has been considerably reduced.  Previously, a
debug structure was declared in every function that used
the debug macros.  This structure has been removed in
favor of declaring the individual elements as parameters
to the debug functions.  This reduces the cumulative stack
use during nested execution of ACPI function calls at the
cost of a small increase in the code size of the debug
version of the subsystem.  With assistance from Alexey
Starikovskiy and Len Brown.

Added the ACPI_GET_FUNCTION_NAME macro to enable the
compiler-dependent headers to define a macro that will
return the current function name at runtime (such as
__FUNCTION__ or _func_, etc.) The function name is used
by the debug trace output.  If ACPI_GET_FUNCTION_NAME
is not defined in the compiler-dependent header, the
function name is saved on the CPU stack (one pointer per
function.) This mechanism is used because apparently there
exists no standard ANSI-C defined macro that that returns
the function name.

Alexey Starikovskiy redesigned and reimplemented the
"Owner ID" mechanism used to track namespace objects
created/deleted by ACPI tables and control method
execution.  A bitmap is now used to allocate and free the
IDs, thus solving the wraparound problem present in the
previous implementation.  The size of the namespace node
descriptor was reduced by 2 bytes as a result.

Removed the UINT32_BIT and UINT16_BIT types that were used
for the bitfield flag definitions within the headers for
the predefined ACPI tables.  These have been replaced by
UINT8_BIT in order to increase the code portability of
the subsystem.  If the use of UINT8 remains a problem,
we may be forced to eliminate bitfields entirely because
of a lack of portability.

Alexey Starikovksiy enhanced the performance of
acpi_ut_update_object_reference.  This is a frequently used
function and this improvement increases the performance
of the entire subsystem.

Alexey Starikovskiy fixed several possible memory leaks
and the inverse - premature object deletion.

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 40 insertions, 16 deletions

diff --git a/include/acpi/acutils.h b/include/acpi/acutils.h
index e9c1584dd785..9c05c10e379a 100644
--- a/include/acpi/acutils.h
+++ b/include/acpi/acutils.h
@@ -120,10 +120,6 @@ u8
 acpi_ut_valid_object_type (
         acpi_object_type                type);
 
-acpi_owner_id
-acpi_ut_allocate_owner_id (
-        u32                             id_type);
-
 
 /*
  * utinit - miscellaneous initialization and shutdown
@@ -306,47 +302,63 @@ acpi_ut_track_stack_ptr (
 void
 acpi_ut_trace (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info);
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id);
 
 void
 acpi_ut_trace_ptr (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         void                            *pointer);
 
 void
 acpi_ut_trace_u32 (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         u32                             integer);
 
 void
 acpi_ut_trace_str (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         char                            *string);
 
 void
 acpi_ut_exit (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info);
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id);
 
 void
 acpi_ut_status_exit (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         acpi_status                     status);
 
 void
 acpi_ut_value_exit (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         acpi_integer                    value);
 
 void
 acpi_ut_ptr_exit (
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         u8                              *ptr);
 
 void
@@ -378,7 +390,9 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_debug_print (
         u32                             requested_debug_level,
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         char                            *format,
         ...) ACPI_PRINTF_LIKE_FUNC;
 
@@ -386,7 +400,9 @@ void ACPI_INTERNAL_VAR_XFACE
 acpi_ut_debug_print_raw (
         u32                             requested_debug_level,
         u32                             line_number,
-        struct acpi_debug_print_info    *dbg_info,
+        char                            *function_name,
+        char                            *module_name,
+        u32                             component_id,
         char                            *format,
         ...) ACPI_PRINTF_LIKE_FUNC;
 
@@ -477,8 +493,8 @@ acpi_ut_allocate_object_desc_dbg (
         u32                             line_number,
         u32                             component_id);
 
-#define acpi_ut_create_internal_object(t) acpi_ut_create_internal_object_dbg (_THIS_MODULE,__LINE__,_COMPONENT,t)
-#define acpi_ut_allocate_object_desc()  acpi_ut_allocate_object_desc_dbg (_THIS_MODULE,__LINE__,_COMPONENT)
+#define acpi_ut_create_internal_object(t) acpi_ut_create_internal_object_dbg (_acpi_module_name,__LINE__,_COMPONENT,t)
+#define acpi_ut_allocate_object_desc()  acpi_ut_allocate_object_desc_dbg (_acpi_module_name,__LINE__,_COMPONENT)
 
 void
 acpi_ut_delete_object_desc (
@@ -579,6 +595,14 @@ acpi_ut_short_divide (
  * utmisc
  */
 acpi_status
+acpi_ut_allocate_owner_id (
+        acpi_owner_id                   *owner_id);
+
+acpi_status
+acpi_ut_release_owner_id (
+        acpi_owner_id                   owner_id);
+
+acpi_status
 acpi_ut_walk_package_tree (
         union acpi_operand_object       *source_object,
         void                            *target_object,