Merge branch 'acpica' into acpi-lpss

The following commits depend on the 'acpica' material.

14 files changed, 473 insertions, 242 deletions

diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 0943457e0fa5..101d5fef6b21 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -138,7 +138,7 @@
 
 /* Maximum sleep allowed via Sleep() operator */
 
-#define ACPI_MAX_SLEEP                  2000    /* Two seconds */
+#define ACPI_MAX_SLEEP                  2000    /* 2000 millisec == two seconds */
 
 /* Address Range lists are per-space_id (Memory and I/O only) */
 
@@ -150,11 +150,6 @@
  *
  *****************************************************************************/
 
-/* Number of distinct GPE register blocks and register width */
-
-#define ACPI_MAX_GPE_BLOCKS             2
-#define ACPI_GPE_REGISTER_WIDTH         8
-
 /* Method info (in WALK_STATE), containing local variables and argumetns */
 
 #define ACPI_METHOD_NUM_LOCALS          8
@@ -163,12 +158,6 @@
 #define ACPI_METHOD_NUM_ARGS            7
 #define ACPI_METHOD_MAX_ARG             6
 
-/* Length of _HID, _UID, _CID, and UUID values */
-
-#define ACPI_DEVICE_ID_LENGTH           0x09
-#define ACPI_MAX_CID_LENGTH             48
-#define ACPI_UUID_LENGTH                16
-
 /*
  * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
  */
@@ -186,17 +175,6 @@
  */
 #define ACPI_RESULTS_OBJ_NUM_MAX        255
 
-/* Names within the namespace are 4 bytes long */
-
-#define ACPI_NAME_SIZE                  4
-#define ACPI_PATH_SEGMENT_LENGTH        5       /* 4 chars for name + 1 char for separator */
-#define ACPI_PATH_SEPARATOR             '.'
-
-/* Sizes for ACPI table headers */
-
-#define ACPI_OEM_ID_SIZE                6
-#define ACPI_OEM_TABLE_ID_SIZE          8
-
 /* Constants used in searching for the RSDP in low memory */
 
 #define ACPI_EBDA_PTR_LOCATION          0x0000040E      /* Physical Address */
@@ -213,6 +191,7 @@
 /* Maximum space_ids for Operation Regions */
 
 #define ACPI_MAX_ADDRESS_SPACE          255
+#define ACPI_NUM_DEFAULT_SPACES         4
 
 /* Array sizes.  Used for range checking also */
 
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index 2457ac849655..b48cb3459778 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -72,6 +72,7 @@
 #define ACPI_EXAMPLE                0x00004000
 #define ACPI_DRIVER                 0x00008000
 #define DT_COMPILER                 0x00010000
+#define ASL_PREPROCESSOR            0x00020000
 
 #define ACPI_ALL_COMPONENTS         0x0001FFFF
 #define ACPI_COMPONENT_DEFAULT      (ACPI_ALL_COMPONENTS)
@@ -262,18 +263,140 @@
  * Common parameters used for debug output functions:
  * line number, function name, module(file) name, component ID
  */
-#define ACPI_DEBUG_PARAMETERS           __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
+#define ACPI_DEBUG_PARAMETERS \
+        __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
+
+/* Check if debug output is currently dynamically enabled */
+
+#define ACPI_IS_DEBUG_ENABLED(level, component) \
+        ((level & acpi_dbg_level) && (component & acpi_dbg_layer))
 
 /*
  * Master debug print macros
  * Print message if and only if:
  *    1) Debug print for the current component is enabled
  *    2) Debug error level or trace level for the print statement is enabled
+ *
+ * November 2012: Moved the runtime check for whether to actually emit the
+ * debug message outside of the print function itself. This improves overall
+ * performance at a relatively small code cost. Implementation involves the
+ * use of variadic macros supported by C99.
+ *
+ * Note: the ACPI_DO_WHILE0 macro is used to prevent some compilers from
+ * complaining about these constructs. On other compilers the do...while
+ * adds some extra code, so this feature is optional.
  */
-#define ACPI_DEBUG_PRINT(plist)         acpi_debug_print plist
-#define ACPI_DEBUG_PRINT_RAW(plist)     acpi_debug_print_raw plist
-
+#ifdef ACPI_USE_DO_WHILE_0
+#define ACPI_DO_WHILE0(a)               do a while(0)
 #else
+#define ACPI_DO_WHILE0(a)               a
+#endif
+
+/* DEBUG_PRINT functions */
+
+#define ACPI_DEBUG_PRINT(plist)         ACPI_ACTUAL_DEBUG plist
+#define ACPI_DEBUG_PRINT_RAW(plist)     ACPI_ACTUAL_DEBUG_RAW plist
+
+/* Helper macros for DEBUG_PRINT */
+
+#define ACPI_DO_DEBUG_PRINT(function, level, line, filename, modulename, component, ...) \
+        ACPI_DO_WHILE0 ({ \
+                if (ACPI_IS_DEBUG_ENABLED (level, component)) \
+                { \
+                        function (level, line, filename, modulename, component, __VA_ARGS__); \
+                } \
+        })
+
+#define ACPI_ACTUAL_DEBUG(level, line, filename, modulename, component, ...) \
+        ACPI_DO_DEBUG_PRINT (acpi_debug_print, level, line, \
+                filename, modulename, component, __VA_ARGS__)
+
+#define ACPI_ACTUAL_DEBUG_RAW(level, line, filename, modulename, component, ...) \
+        ACPI_DO_DEBUG_PRINT (acpi_debug_print_raw, level, line, \
+                filename, modulename, component, __VA_ARGS__)
+
+/*
+ * Function entry tracing
+ *
+ * The name of the function is emitted as a local variable that is
+ * intended to be used by both the entry trace and the exit trace.
+ */
+
+/* Helper macro */
+
+#define ACPI_TRACE_ENTRY(name, function, cast, param) \
+        ACPI_FUNCTION_NAME (name) \
+        function (ACPI_DEBUG_PARAMETERS, cast (param))
+
+/* The actual entry trace macros */
+
+#define ACPI_FUNCTION_TRACE(name) \
+        ACPI_FUNCTION_NAME(name) \
+        acpi_ut_trace (ACPI_DEBUG_PARAMETERS)
+
+#define ACPI_FUNCTION_TRACE_PTR(name, pointer) \
+        ACPI_TRACE_ENTRY (name, acpi_ut_trace_ptr, (void *), pointer)
+
+#define ACPI_FUNCTION_TRACE_U32(name, value) \
+        ACPI_TRACE_ENTRY (name, acpi_ut_trace_u32, (u32), value)
+