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authorRobert Moore <robert.moore@intel.com>2005-07-08 00:00:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-14 00:42:23 -0400
commitf9f4601f331aa1226d7a798a01950efbb388f07f (patch)
tree62e079a9275749d16a4a0da56a427be201e15d27 /include/acpi/aclocal.h
parent4c3ffbd79529b680b3c3ef2b6f42f0c89c694ec5 (diff)
downloadlinux-f9f4601f331aa1226d7a798a01950efbb388f07f.tar.bz2
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 These have been replaced by UINT8_BIT in order to increase the code portability of the subsystem.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>
Diffstat (limited to 'include/acpi/aclocal.h')
-rw-r--r--include/acpi/aclocal.h57
1 files changed, 27 insertions, 30 deletions
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index 58f9ba1a34e7..4d2635698e10 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -56,6 +56,13 @@ typedef u32 acpi_mutex_handle;
#define AML_NUM_OPCODES 0x7F
+/* Forward declarations */
+
+struct acpi_walk_state ;
+struct acpi_obj_mutex;
+union acpi_parse_object ;
+
+
/*****************************************************************************
*
* Mutex typedefs and structs
@@ -116,19 +123,24 @@ static char *acpi_gbl_mutex_names[] =
#endif
+/* Owner IDs are used to track namespace nodes for selective deletion */
+
+typedef u8 acpi_owner_id;
+#define ACPI_OWNER_ID_MAX 0xFF
+
+/* This Thread ID means that the mutex is not in use (unlocked) */
+
+#define ACPI_MUTEX_NOT_ACQUIRED (u32) -1
+
/* Table for the global mutexes */
struct acpi_mutex_info
{
acpi_mutex mutex;
u32 use_count;
- u32 owner_id;
+ u32 thread_id;
};
-/* This owner ID means that the mutex is not in use (unlocked) */
-
-#define ACPI_MUTEX_NOT_ACQUIRED (u32) (-1)
-
/* Lock flag parameter for various interfaces */
@@ -136,13 +148,6 @@ struct acpi_mutex_info
#define ACPI_MTX_LOCK 1
-typedef u16 acpi_owner_id;
-#define ACPI_OWNER_TYPE_TABLE 0x0
-#define ACPI_OWNER_TYPE_METHOD 0x1
-#define ACPI_FIRST_METHOD_ID 0x0001
-#define ACPI_FIRST_TABLE_ID 0xF000
-
-
/* Field access granularities */
#define ACPI_FIELD_BYTE_GRANULARITY 1
@@ -185,13 +190,20 @@ struct acpi_namespace_node
{
u8 descriptor; /* Used to differentiate object descriptor types */
u8 type; /* Type associated with this name */
- u16 owner_id;
+ u16 reference_count; /* Current count of references and children */
union acpi_name_union name; /* ACPI Name, always 4 chars per ACPI spec */
union acpi_operand_object *object; /* Pointer to attached ACPI object (optional) */
struct acpi_namespace_node *child; /* First child */
struct acpi_namespace_node *peer; /* Next peer*/
- u16 reference_count; /* Current count of references and children */
+ u8 owner_id; /* Who created this node */
u8 flags;
+
+ /* Fields used by the ASL compiler only */
+
+#ifdef ACPI_ASL_COMPILER
+ u32 value;
+ union acpi_parse_object *op;
+#endif
};
@@ -222,7 +234,7 @@ struct acpi_table_desc
u64 physical_address;
u32 aml_length;
acpi_size length;
- acpi_owner_id table_id;
+ acpi_owner_id owner_id;
u8 type;
u8 allocation;
u8 loaded_into_namespace;
@@ -420,13 +432,6 @@ struct acpi_field_info
#define ACPI_CONTROL_PREDICATE_TRUE 0xC4
-/* Forward declarations */
-
-struct acpi_walk_state ;
-struct acpi_obj_mutex;
-union acpi_parse_object ;
-
-
#define ACPI_STATE_COMMON /* Two 32-bit fields and a pointer */\
u8 data_type; /* To differentiate various internal objs */\
u8 flags; \
@@ -916,14 +921,6 @@ struct acpi_integrity_info
*
****************************************************************************/
-struct acpi_debug_print_info
-{
- u32 component_id;
- char *proc_name;
- char *module_name;
-};
-
-
/* Entry for a memory allocation (debug only) */
#define ACPI_MEM_MALLOC 0