extern u8 acpi_gbl_permanent_mmap;
/*
- * Globals that are publically available
+ * Ensure that the globals are actually defined and initialized only once.
+ *
+ * The use of these macros allows a single list of globals (here) in order
+ * to simplify maintenance of the code.
+ */
+#ifdef DEFINE_ACPI_GLOBALS
+#define ACPI_GLOBAL(type,name) \
+ extern type name; \
+ type name
+
+#define ACPI_INIT_GLOBAL(type,name,value) \
+ type name=value
+
+#else
+#ifndef ACPI_GLOBAL
+#define ACPI_GLOBAL(type,name) \
+ extern type name
+#endif
+
+#ifndef ACPI_INIT_GLOBAL
+#define ACPI_INIT_GLOBAL(type,name,value) \
+ extern type name
+#endif
+#endif
+
+/* Public globals, available from outside ACPICA subsystem */
+
+/*****************************************************************************
+ *
+ * Runtime configuration (static defaults that can be overriden at runtime)
+ *
+ ****************************************************************************/
+
+/*
+ * Enable "slack" in the AML interpreter? Default is FALSE, and the
+ * interpreter strictly follows the ACPI specification. Setting to TRUE
+ * allows the interpreter to ignore certain errors and/or bad AML constructs.
+ *
+ * Currently, these features are enabled by this flag:
+ *
+ * 1) Allow "implicit return" of last value in a control method
+ * 2) Allow access beyond the end of an operation region
+ * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
+ * 4) Allow ANY object type to be a source operand for the Store() operator
+ * 5) Allow unresolved references (invalid target name) in package objects
+ * 6) Enable warning messages for behavior that is not ACPI spec compliant
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_interpreter_slack, FALSE);
+
+/*
+ * Automatically serialize all methods that create named objects? Default
+ * is TRUE, meaning that all non_serialized methods are scanned once at
+ * table load time to determine those that create named objects. Methods
+ * that create named objects are marked Serialized in order to prevent
+ * possible run-time problems if they are entered by more than one thread.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_auto_serialize_methods, TRUE);
+
+/*
+ * Create the predefined _OSI method in the namespace? Default is TRUE
+ * because ACPICA is fully compatible with other ACPI implementations.
+ * Changing this will revert ACPICA (and machine ASL) to pre-OSI behavior.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
+
+/*
+ * Optionally use default values for the ACPI register widths. Set this to
+ * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
+
+/*
+ * Optionally enable output from the AML Debug Object.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_aml_debug_object, FALSE);
+
+/*
+ * Optionally copy the entire DSDT to local memory (instead of simply
+ * mapping it.) There are some BIOSs that corrupt or replace the original
+ * DSDT, creating the need for this option. Default is FALSE, do not copy
+ * the DSDT.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_copy_dsdt_locally, FALSE);
+
+/*
+ * Optionally ignore an XSDT if present and use the RSDT instead.
+ * Although the ACPI specification requires that an XSDT be used instead
+ * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
+ * some machines. Default behavior is to use the XSDT if present.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
+
+/*
+ * Optionally use 32-bit FADT addresses if and when there is a conflict
+ * (address mismatch) between the 32-bit and 64-bit versions of the
+ * address. Although ACPICA adheres to the ACPI specification which
+ * requires the use of the corresponding 64-bit address if it is non-zero,
+ * some machines have been found to have a corrupted non-zero 64-bit
+ * address. Default is FALSE, do not favor the 32-bit addresses.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
+
+/*
+ * Optionally truncate I/O addresses to 16 bits. Provides compatibility
+ * with other ACPI implementations. NOTE: During ACPICA initialization,
+ * this value is set to TRUE if any Windows OSI strings have been
+ * requested by the BIOS.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
+
+/*
+ * Disable runtime checking and repair of values returned by control methods.
+ * Use only if the repair is causing a problem on a particular machine.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
+
+/*
+ * Optionally do not install any SSDTs from the RSDT/XSDT during initialization.
+ * This can be useful for debugging ACPI problems on some machines.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_install, FALSE);
+
+/*
+ * We keep track of the latest version of Windows that has been requested by
+ * the BIOS. ACPI 5.0.
*/
-extern u32 acpi_current_gpe_count;
-extern struct acpi_table_fadt acpi_gbl_FADT;
-extern u8 acpi_gbl_system_awake_and_running;
-extern u8 acpi_gbl_reduced_hardware; /* ACPI 5.0 */
-extern u8 acpi_gbl_osi_data;
+ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
-/* Runtime configuration of debug print levels */
+/*
+ * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
+ * that the ACPI hardware is no longer required. A flag in the FADT indicates
+ * a reduced HW machine, and that flag is duplicated here for convenience.
+ */
+ACPI_INIT_GLOBAL(u8, acpi_gbl_reduced_hardware, FALSE);
-extern u32 acpi_dbg_level;
-extern u32 acpi_dbg_layer;
+/*
+ * This mechanism is used to trace a specified AML method. The method is
+ * traced each time it is executed.
+ */
+ACPI_INIT_GLOBAL(u32, acpi_gbl_trace_flags, 0);
+ACPI_INIT_GLOBAL(acpi_name, acpi_gbl_trace_method_name, 0);
-/* ACPICA runtime options */
+/*
+ * Runtime configuration of debug output control masks. We want the debug
+ * switches statically initialized so they are already set when the debugger
+ * is entered.
+ */
+ACPI_INIT_GLOBAL(u32, acpi_dbg_level, ACPI_DEBUG_DEFAULT);
+ACPI_INIT_GLOBAL(u32, acpi_dbg_layer, 0);
-extern u8 acpi_gbl_auto_serialize_methods;
-extern u8 acpi_gbl_copy_dsdt_locally;
-extern u8 acpi_gbl_create_osi_method;
-extern u8 acpi_gbl_disable_auto_repair;
-extern u8 acpi_gbl_disable_ssdt_table_install;
-extern u8 acpi_gbl_do_not_use_xsdt;
-extern u8 acpi_gbl_enable_aml_debug_object;
-extern u8 acpi_gbl_enable_interpreter_slack;
-extern u32 acpi_gbl_trace_flags;
-extern acpi_name acpi_gbl_trace_method_name;
-extern u8 acpi_gbl_truncate_io_addresses;
-extern u8 acpi_gbl_use32_bit_fadt_addresses;
-extern u8 acpi_gbl_use_default_register_widths;
+/*
+ * Globals that are publically available
+ */
+ACPI_GLOBAL(u32, acpi_current_gpe_count);
+ACPI_GLOBAL(struct acpi_table_fadt, acpi_gbl_FADT);
+ACPI_GLOBAL(u8, acpi_gbl_system_awake_and_running);
/*
* Hardware-reduced prototypes. All interfaces that use these macros will
#endif /* !ACPI_REDUCED_HARDWARE */
+/*
+ * Error-message prototypes. All interfaces that use these macros will
+ * be configured out of the ACPICA build if the ACPI_NO_ERROR_MESSAGE flag
+ * is defined.
+ */
+#ifndef ACPI_NO_ERROR_MESSAGES
+#define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
+ prototype;
+
+#else
+#define ACPI_MSG_DEPENDENT_RETURN_VOID(prototype) \
+ static ACPI_INLINE prototype {return;}
+
+#endif /* ACPI_NO_ERROR_MESSAGES */
+
/*
* Initialization
*/
/*
* Error/Warning output
*/
-ACPI_PRINTF_LIKE(3)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_error(const char *module_name, u32 line_number, const char *format, ...);
-
-ACPI_PRINTF_LIKE(4)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_exception(const char *module_name,
- u32 line_number, acpi_status status, const char *format, ...);
-
-ACPI_PRINTF_LIKE(3)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_warning(const char *module_name, u32 line_number, const char *format, ...);
-
-ACPI_PRINTF_LIKE(3)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_info(const char *module_name, u32 line_number, const char *format, ...);
-
-ACPI_PRINTF_LIKE(3)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_bios_error(const char *module_name,
- u32 line_number, const char *format, ...);
-
-ACPI_PRINTF_LIKE(3)
-void ACPI_INTERNAL_VAR_XFACE
-acpi_bios_warning(const char *module_name,
- u32 line_number, const char *format, ...);
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_error(const char *module_name,
+ u32 line_number,
+ const char *format, ...))
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(4)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_exception(const char *module_name,
+ u32 line_number,
+ acpi_status status,
+ const char *format, ...))
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_warning(const char *module_name,
+ u32 line_number,
+ const char *format, ...))
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_info(const char *module_name,
+ u32 line_number,
+ const char *format, ...))
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_bios_error(const char *module_name,
+ u32 line_number,
+ const char *format, ...))
+ACPI_MSG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(3)
+ void ACPI_INTERNAL_VAR_XFACE
+ acpi_bios_warning(const char *module_name,
+ u32 line_number,
+ const char *format, ...))
/*
* Debug output
*/
#ifdef ACPI_DEBUG_OUTPUT
-
ACPI_PRINTF_LIKE(6)
void ACPI_INTERNAL_VAR_XFACE
acpi_debug_print(u32 requested_debug_level,
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