Merge branch 'acpica' into release

Conflicts:
	drivers/acpi/acpica/aclocal.h

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

40 files changed, 1826 insertions, 717 deletions

diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index d93cc06f4bf8..a7e1d1aa4107 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -21,7 +21,7 @@ acpi-y += exconfig.o  exfield.o  exnames.o   exoparg6.o  exresolv.o  exstorob.o\
          excreate.o  exmisc.o   exoparg2.o  exregion.o  exstore.o   exutils.o \
          exdump.o    exmutex.o  exoparg3.o  exresnte.o  exstoren.o  exdebug.o
 
-acpi-y += hwacpi.o  hwgpe.o  hwregs.o  hwsleep.o hwxface.o hwvalid.o
+acpi-y += hwacpi.o  hwgpe.o  hwregs.o  hwsleep.o hwxface.o hwvalid.o hwpci.o
 
 acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
 
@@ -44,4 +44,5 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
 
 acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
                 utcopy.o utdelete.o utglobal.o utmath.o utobject.o \
-                utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o
+                utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o \
+                utosi.o utxferror.o
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 48faf3eba9fb..72e9d5eb083c 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -105,6 +105,8 @@ void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg);
 acpi_status
 acpi_db_display_objects(char *obj_type_arg, char *display_count_arg);
 
+void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg);
+
 acpi_status acpi_db_find_name_in_namespace(char *name_arg);
 
 void acpi_db_set_scope(char *name);
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 1d192142c691..b8dbb9bd6962 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -132,6 +132,7 @@ struct acpi_table_fadt acpi_gbl_FADT;
 u32 acpi_current_gpe_count;
 u32 acpi_gbl_trace_flags;
 acpi_name acpi_gbl_trace_method_name;
+u8 acpi_gbl_system_awake_and_running;
 
 #endif
 
@@ -187,6 +188,10 @@ ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
 ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
 
+/* Mutex for _OSI support */
+
+ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex;
+
 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
 
 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
@@ -255,6 +260,7 @@ ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
 ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
 ACPI_EXTERN void *acpi_gbl_table_handler_context;
 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
+ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;
 
 /* Owner ID support */
 
@@ -273,8 +279,8 @@ ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
 ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
 ACPI_EXTERN u8 acpi_gbl_events_initialized;
-ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
 ACPI_EXTERN u8 acpi_gbl_osi_data;
+ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces;
 
 #ifndef DEFINE_ACPI_GLOBALS
 
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 120b3af56596..167470ad2d21 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -121,6 +121,13 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
                                  struct acpi_gpe_block_info *gpe_block,
                                  void *context);
 
+/*
+ * hwpci - PCI configuration support
+ */
+acpi_status
+acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
+                      acpi_handle root_pci_device, acpi_handle pci_region);
+
 #ifdef  ACPI_FUTURE_USAGE
 /*
  * hwtimer - ACPI Timer prototypes
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 7dad9160f209..8acf1e8e479f 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -854,7 +854,7 @@ struct acpi_bit_register_info {
         ACPI_BITMASK_POWER_BUTTON_STATUS   | \
         ACPI_BITMASK_SLEEP_BUTTON_STATUS   | \
         ACPI_BITMASK_RT_CLOCK_STATUS       | \
-        ACPI_BITMASK_PCIEXP_WAKE_DISABLE   | \
+        ACPI_BITMASK_PCIEXP_WAKE_STATUS    | \
         ACPI_BITMASK_WAKE_STATUS)
 
 #define ACPI_BITMASK_TIMER_ENABLE               0x0001
@@ -909,15 +909,21 @@ struct acpi_bit_register_info {
 #define ACPI_OSI_WIN_VISTA              0x07
 #define ACPI_OSI_WINSRV_2008            0x08
 #define ACPI_OSI_WIN_VISTA_SP1          0x09
-#define ACPI_OSI_WIN_7                  0x0A
+#define ACPI_OSI_WIN_VISTA_SP2          0x0A
+#define ACPI_OSI_WIN_7                  0x0B
 
 #define ACPI_ALWAYS_ILLEGAL             0x00
 
 struct acpi_interface_info {
         char *name;
+        struct acpi_interface_info *next;
+        u8 flags;
         u8 value;
 };
 
+#define ACPI_OSI_INVALID                0x01
+#define ACPI_OSI_DYNAMIC                0x02
+
 struct acpi_port_info {
         char *name;
         u16 start;
@@ -997,7 +1003,7 @@ struct acpi_port_info {
 struct acpi_db_method_info {
         acpi_handle main_thread_gate;
         acpi_handle thread_complete_gate;
-        u32 *threads;
+        acpi_thread_id *threads;
         u32 num_threads;
         u32 num_created;
         u32 num_completed;
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 9894929a2abb..8d5c9e0a495f 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -338,8 +338,8 @@
  * the plist contains a set of parens to allow variable-length lists.
  * These macros are used for both the debug and non-debug versions of the code.
  */
-#define ACPI_ERROR_NAMESPACE(s, e)      acpi_ns_report_error (AE_INFO, s, e);
-#define ACPI_ERROR_METHOD(s, n, p, e)   acpi_ns_report_method_error (AE_INFO, s, n, p, e);
+#define ACPI_ERROR_NAMESPACE(s, e)      acpi_ut_namespace_error (AE_INFO, s, e);
+#define ACPI_ERROR_METHOD(s, n, p, e)   acpi_ut_method_error (AE_INFO, s, n, p, e);
 #define ACPI_WARN_PREDEFINED(plist)     acpi_ut_predefined_warning plist
 #define ACPI_INFO_PREDEFINED(plist)     acpi_ut_predefined_info plist
 
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 9f60ff002203..d44d3bc5b847 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -339,18 +339,6 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node *node);
 u32 acpi_ns_local(acpi_object_type type);
 
 void
-acpi_ns_report_error(const char *module_name,
-                     u32 line_number,
-                     const char *internal_name, acpi_status lookup_status);
-
-void
-acpi_ns_report_method_error(const char *module_name,
-                            u32 line_number,
-                            const char *message,
-                            struct acpi_namespace_node *node,
-                            const char *path, acpi_status lookup_status);
-
-void
 acpi_ns_print_node_pathname(struct acpi_namespace_node *node, const char *msg);
 
 acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info);
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 54857fa87aaf..bdbfaf22bd14 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -248,7 +248,7 @@ ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_NOTIFY_INFO};
         u32                             base_byte_offset;   /* Byte offset within containing object */\
         u32                             value;              /* Value to store into the Bank or Index register */\
         u8                              start_field_bit_offset;/* Bit offset within first field datum (0-63) */\
-        u8                              access_bit_width;       /* Read/Write size in bits (8-64) */
+
 
 struct acpi_object_field_common {       /* COMMON FIELD (for BUFFER, REGION, BANK, and INDEX fields) */
         ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *region_obj; /* Parent Operation Region object (REGION/BANK fields only) */
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 35df755251ce..72e4183c1937 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -312,8 +312,6 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list);
 /*
  * uteval - object evaluation
  */
-acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
-
 acpi_status
 acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
                         char *path,
@@ -395,6 +393,21 @@ acpi_status
 acpi_ut_get_object_size(union acpi_operand_object *obj, acpi_size * obj_length);
 
 /*
+ * utosi - Support for the _OSI predefined control method
+ */
+acpi_status acpi_ut_initialize_interfaces(void);
+
+void acpi_ut_interface_terminate(void);
+
+acpi_status acpi_ut_install_interface(acpi_string interface_name);
+
+acpi_status acpi_ut_remove_interface(acpi_string interface_name);
+
+struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);
+
+acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
+
+/*
  * utstate - Generic state creation/cache routines
  */
 void
@@ -473,17 +486,6 @@ u8 acpi_ut_valid_acpi_char(char character, u32 position);
 
 acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 * ret_integer);
 
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_predefined_warning(const char *module_name,
-                           u32 line_number,
-                           char *pathname,
-                           u8 node_flags, const char *format, ...);
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_predefined_info(const char *module_name,
-                        u32 line_number,
-                        char *pathname, u8 node_flags, const char *format, ...);
-
 /* Values for Base above (16=Hex, 10=Decimal) */
 
 #define ACPI_ANY_BASE        0
@@ -574,6 +576,32 @@ acpi_status
 acpi_ut_create_list(char *list_name,
                     u16 object_size, struct acpi_memory_list **return_cache);
 
-#endif
+#endif                          /* ACPI_DBG_TRACK_ALLOCATIONS */
+
+/*
+ * utxferror - various error/warning output functions
+ */
+void ACPI_INTERNAL_VAR_XFACE
+acpi_ut_predefined_warning(const char *module_name,
+                           u32 line_number,
+                           char *pathname,
+                           u8 node_flags, const char *format, ...);
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_ut_predefined_info(const char *module_name,
+                        u32 line_number,
+                        char *pathname, u8 node_flags, const char *format, ...);
+
+void
+acpi_ut_namespace_error(const char *module_name,
+                        u32 line_number,
+                        const char *internal_name, acpi_status lookup_status);
+
+void
+acpi_ut_method_error(const char *module_name,
+                     u32 line_number,
+                     const char *message,
+                     struct acpi_namespace_node *node,
+                     const char *path, acpi_status lookup_status);
 
 #endif                          /* _ACUTILS_H */
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index 64750ee96e20..d94dd8974b55 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -573,7 +573,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
 
                                 acpi_os_release_mutex(method_desc->method.
                                                       mutex->mutex.os_mutex);
-                                method_desc->method.mutex->mutex.thread_id = NULL;
+                                method_desc->method.mutex->mutex.thread_id = 0;
                         }
                 }
 
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index d555b374e314..6b0b5d08d97a 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -300,10 +300,25 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
                          * we must enter this object into the namespace.  The created
                          * object is temporary and will be deleted upon completion of
                          * the execution of this method.
+                         *
+                         * Note 10/2010: Except for the Scope() op. This opcode does
+                         * not actually create a new object, it refers to an existing
+                         * object. However, for Scope(), we want to indeed open a
+                         * new scope.
                          */
-                        status = acpi_ds_load2_begin_op(walk_state, NULL);
+                        if (op->common.aml_opcode != AML_SCOPE_OP) {
+                                status =
+                                    acpi_ds_load2_begin_op(walk_state, NULL);
+                        } else {
+                                status =
+                                    acpi_ds_scope_stack_push(op->named.node,
+                                                             op->named.node->
+                                                             type, walk_state);
+                                if (ACPI_FAILURE(status)) {
+                                        return_ACPI_STATUS(status);
+                                }
+                        }
                 }
-
                 break;
 
         case AML_CLASS_EXECUTE:
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index df0aea9a8cfd..fcaed9fb44ff 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -553,7 +553,7 @@ acpi_status acpi_ev_release_global_lock(void)
         acpi_gbl_global_lock_acquired = FALSE;
 
         /* Release the local GL mutex */
-        acpi_ev_global_lock_thread_id = NULL;
+        acpi_ev_global_lock_thread_id = 0;
         acpi_ev_global_lock_acquired = 0;
         acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex);
         return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index f40d271bf568..0b47a6dc9290 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -289,8 +289,8 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
         }
 
         /*
-         * Get the PCI device and function numbers from the _ADR object contained
-         * in the parent's scope.
+         * Get the PCI device and function numbers from the _ADR object
+         * contained in the parent's scope.
          */
         status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR,
                                                  pci_device_node, &pci_value);
@@ -320,9 +320,15 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
                 pci_id->bus = ACPI_LOWORD(pci_value);
         }
 
-        /* Complete this device's pci_id */
+        /* Complete/update the PCI ID for this device */
 
-        acpi_os_derive_pci_id(pci_root_node, region_obj->region.node, &pci_id);
+        status =
+            acpi_hw_derive_pci_id(pci_id, pci_root_node,
+                                  region_obj->region.node);
+        if (ACPI_FAILURE(status)) {
+                ACPI_FREE(pci_id);
+                return_ACPI_STATUS(status);
+        }
 
         *region_context = pci_id;
         return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 541cbc1544d5..ce9314f79451 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -64,6 +64,12 @@ ACPI_MODULE_NAME("evxfregn")
  *
  * DESCRIPTION: Install a handler for all op_regions of a given space_id.
  *
+ * NOTE: This function should only be called after acpi_enable_subsystem has
+ * been called. This is because any _REG methods associated with the Space ID
+ * are executed here, and these methods can only be safely executed after
+ * the default handlers have been installed and the hardware has been
+ * initialized (via acpi_enable_subsystem.)
+ *
  ******************************************************************************/
 acpi_status
 acpi_install_address_space_handler(acpi_handle device,
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 047217303a4b..38293fd3e088 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -119,8 +119,8 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
         }
 
         /*
-         * Exit now for SMBus or IPMI address space, it has a non-linear address space
-         * and the request cannot be directly validated
+         * Exit now for SMBus or IPMI address space, it has a non-linear
+         * address space and the request cannot be directly validated
          */
         if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS ||
             rgn_desc->region.space_id == ACPI_ADR_SPACE_IPMI) {
@@ -147,8 +147,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
          * (Region length is specified in bytes)
          */
         if (rgn_desc->region.length <
-            (obj_desc->common_field.base_byte_offset +
-             field_datum_byte_offset +
+            (obj_desc->common_field.base_byte_offset + field_datum_byte_offset +
              obj_desc->common_field.access_byte_width)) {
                 if (acpi_gbl_enable_interpreter_slack) {
                         /*
@@ -680,6 +679,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
         u32 buffer_tail_bits;
         u32 datum_count;
         u32 field_datum_count;
+        u32 access_bit_width;
         u32 i;
 
         ACPI_FUNCTION_TRACE(ex_extract_from_field);
@@ -694,16 +694,36 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 
                 return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
         }
+
         ACPI_MEMSET(buffer, 0, buffer_length);
+        access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width);
+
+        /* Handle the simple case here */
+
+        if ((obj_desc->common_field.start_field_bit_offset == 0) &&
+            (obj_desc->common_field.bit_length == access_bit_width)) {
+                status = acpi_ex_field_datum_io(obj_desc, 0, buffer, ACPI_READ);
+                return_ACPI_STATUS(status);
+        }
+
+/* TBD: Move to common setup code */
+
+        /* Field algorithm is limited to sizeof(u64), truncate if needed */
+
+        if (obj_desc->common_field.access_byte_width > sizeof(u64)) {
+                obj_desc->common_field.access_byte_width = sizeof(u64);
+                access_bit_width = sizeof(u64) * 8;
+        }
 
         /* Compute the number of datums (access width data items) */
 
-        datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
-                                       obj_desc->common_field.access_bit_width);
+        datum_count =
+            ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+                             access_bit_width);
+
         field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
                                              obj_desc->common_field.
                                              start_field_bit_offset,
-                                             obj_desc->common_field.
                                              access_bit_width);
 
         /* Priming read from the field */
@@ -738,12 +758,11 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
                  * This avoids the differences in behavior between different compilers
                  * concerning shift values larger than the target data width.
                  */
-                if ((obj_desc->common_field.access_bit_width -
-                     obj_desc->common_field.start_field_bit_offset) <
+                if (access_bit_width -
+                    obj_desc->common_field.start_field_bit_offset <
                     ACPI_INTEGER_BIT_SIZE) {
                         merged_datum |=
-                            raw_datum << (obj_desc->common_field.
-                                          access_bit_width -
+                            raw_datum << (access_bit_width -
                                           obj_desc->common_field.
                                           start_field_bit_offset);
                 }
@@ -765,8 +784,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
 
         /* Mask off any extra bits in the last datum */
 
-        buffer_tail_bits = obj_desc->common_field.bit_length %
-            obj_desc->common_field.access_bit_width;
+        buffer_tail_bits = obj_desc->common_field.bit_length % access_bit_width;
         if (buffer_tail_bits) {
                 merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
         }
@@ -798,6 +816,7 @@ acpi_status
 acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
                           void *buffer, u32 buffer_length)
 {
+        void *new_buffer;
         acpi_status status;
         u64 mask;
         u64 width_mask;
@@ -808,9 +827,9 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
         u32 buffer_tail_bits;
         u32 datum_count;
         u32 field_datum_count;
-        u32 i;
+        u32 access_bit_width;
         u32 required_length;
-        void *new_buffer;
+        u32 i;
 
         ACPI_FUNCTION_TRACE(ex_insert_into_field);
 
@@ -844,17 +863,24 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
                 buffer_length = required_length;
         }
 
+/* TBD: Move to common setup code */
+
+        /* Algo is limited to sizeof(u64), so cut the access_byte_width */
+        if (obj_desc->common_field.access_byte_width > sizeof(u64)) {
+                obj_desc->common_field.access_byte_width = sizeof(u64);
+        }
+
+        access_bit_width = ACPI_MUL_8(obj_desc->common_field.access_byte_width);
+
         /*
          * Create the bitmasks used for bit insertion.
          * Note: This if/else is used to bypass compiler differences with the
          * shift operator
          */
-        if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) {
+        if (access_bit_width == ACPI_INTEGER_BIT_SIZE) {
                 width_mask = ACPI_UINT64_MAX;
         } else {
-                width_mask =
-                    ACPI_MASK_BITS_ABOVE(obj_desc->common_field.
-                                         access_bit_width);
+                width_mask = ACPI_MASK_BITS_ABOVE(access_bit_width);
         }
 
         mask = width_mask &
@@ -863,12 +889,11 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
         /* Compute the number of datums (access width data items) */
 
         datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
-                                       obj_desc->common_field.access_bit_width);
+                                       access_bit_width);
 
         field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
                                              obj_desc->common_field.
                                              start_field_bit_offset,
-                                             obj_desc->common_field.
                                              access_bit_width);
 
         /* Get initial Datum from the input buffer */
@@ -905,12 +930,11 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
                  * This avoids the differences in behavior between different compilers
                  * concerning shift values larger than the target data width.
                  */
-                if ((obj_desc->common_field.access_bit_width -
+                if ((access_bit_width -
                      obj_desc->common_field.start_field_bit_offset) <
                     ACPI_INTEGER_BIT_SIZE) {
                         merged_datum =
-                            raw_datum >> (obj_desc->common_field.
-                                          access_bit_width -
+                            raw_datum >> (access_bit_width -
                                           obj_desc->common_field.
                                           start_field_bit_offset);
                 } else {
@@ -929,6 +953,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
                 ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
                             ACPI_MIN(obj_desc->common_field.access_byte_width,
                                      buffer_length - buffer_offset));
+
                 merged_datum |=
                     raw_datum << obj_desc->common_field.start_field_bit_offset;
         }
@@ -937,7 +962,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 
         buffer_tail_bits = (obj_desc->common_field.bit_length +
                             obj_desc->common_field.start_field_bit_offset) %
-            obj_desc->common_field.access_bit_width;
+            access_bit_width;
         if (buffer_tail_bits) {
                 mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
         }
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index f73be97043c0..6af14e43f839 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -336,7 +336,7 @@ acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc)
 
         /* Clear mutex info */
 
-        obj_desc->mutex.thread_id = NULL;
+        obj_desc->mutex.thread_id = 0;
         return_ACPI_STATUS(status);
 }
 
@@ -393,10 +393,10 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
         if ((owner_thread->thread_id != walk_state->thread->thread_id) &&
             (obj_desc != acpi_gbl_global_lock_mutex)) {
                 ACPI_ERROR((AE_INFO,
-                            "Thread %p cannot release Mutex [%4.4s] acquired by thread %p",
-                            ACPI_CAST_PTR(void, walk_state->thread->thread_id),
+                            "Thread %u cannot release Mutex [%4.4s] acquired by thread %u",
+                            (u32)walk_state->thread->thread_id,
                             acpi_ut_get_node_name(obj_desc->mutex.node),
-                            ACPI_CAST_PTR(void, owner_thread->thread_id)));
+                            (u32)owner_thread->thread_id));
                 return_ACPI_STATUS(AE_AML_NOT_OWNER);
         }
 
@@ -488,7 +488,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
                 /* Mark mutex unowned */
 
                 obj_desc->mutex.owner_thread = NULL;
-                obj_desc->mutex.thread_id = NULL;
+                obj_desc->mutex.thread_id = 0;
 
                 /* Update Thread sync_level (Last mutex is the important one) */
 
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 98a331d2249b..7aae29f73d3f 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -355,12 +355,10 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc,
                 return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
         }
 
-        /* Setup width (access granularity) fields */
+        /* Setup width (access granularity) fields (values are: 1, 2, 4, 8) */
 
         obj_desc->common_field.access_byte_width = (u8)
-            ACPI_DIV_8(access_bit_width);       /* 1,  2,  4,  8 */
-
-        obj_desc->common_field.access_bit_width = (u8) access_bit_width;
+            ACPI_DIV_8(access_bit_width);
 
         /*
          * base_byte_offset is the address of the start of the field within the
@@ -405,8 +403,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 {
         union acpi_operand_object *obj_desc;
         union acpi_operand_object *second_desc = NULL;
-        u32 type;
         acpi_status status;
+        u32 access_byte_width;
+        u32 type;
 
         ACPI_FUNCTION_TRACE(ex_prep_field_value);
 
@@ -421,8 +420,8 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                 type = acpi_ns_get_type(info->region_node);
                 if (type != ACPI_TYPE_REGION) {
                         ACPI_ERROR((AE_INFO,
-                                    "Needed Region, found type 0x%X (%s)",
-                                    type, acpi_ut_get_type_name(type)));
+                                    "Needed Region, found type 0x%X (%s)", type,
+                                    acpi_ut_get_type_name(type)));
 
                         return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
                 }
@@ -438,7 +437,8 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
         /* Initialize areas of the object that are common to all fields */
 
         obj_desc->common_field.node = info->field_node;
-        status = acpi_ex_prep_common_field_object(obj_desc, info->field_flags,
+        status = acpi_ex_prep_common_field_object(obj_desc,
+                                                  info->field_flags,
                                                   info->attribute,
                                                   info->field_bit_position,
                                                   info->field_bit_length);
@@ -455,26 +455,25 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
                 obj_desc->field.region_obj =
                     acpi_ns_get_attached_object(info->region_node);
 
-                /* An additional reference for the container */
+                /* Allow full data read from EC address space */
 
-                acpi_ut_add_reference(obj_desc->field.region_obj);
+                if ((obj_desc->field.region_obj->region.space_id ==
+                     ACPI_ADR_SPACE_EC)
+                    && (obj_desc->common_field.bit_length > 8)) {
+                        access_byte_width =
+                            ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.
+                                                        bit_length);
+
+                        /* Maximum byte width supported is 255 */
 
-                /* allow full data read from EC address space */
-                if (obj_desc->field.region_obj->region.space_id ==
-                        ACPI_ADR_SPACE_EC) {
-                        if (obj_desc->common_field.bit_length > 8) {
-                                unsigned width =
-                                        ACPI_ROUND_BITS_UP_TO_BYTES(
-                                        obj_desc->common_field.bit_length);
-                                // access_bit_width is u8, don't overflow it
-                                if (width > 8)
-                                        width = 8;
+                        if (access_byte_width < 256) {
                                 obj_desc->common_field.access_byte_width =
-                                                        width;
-                                obj_desc->common_field.access_bit_width =
-                                                        8 * width;
+                                    (u8)access_byte_width;
                         }
                 }
+                /* An additional reference for the container */
+
+                acpi_ut_add_reference(obj_desc->field.region_obj);
 
                 ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
                                   "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n",
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 8819d2ac5aee..de17e10da0ed 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -353,7 +353,6 @@ acpi_ex_pci_config_space_handler(u32 function,
         acpi_status status = AE_OK;
         struct acpi_pci_id *pci_id;
         u16 pci_register;
-        u32 value32;
 
         ACPI_FUNCTION_TRACE(ex_pci_config_space_handler);
 
@@ -381,8 +380,7 @@ acpi_ex_pci_config_space_handler(u32 function,
         case ACPI_READ:
 
                 status = acpi_os_read_pci_configuration(pci_id, pci_register,
-                                                        &value32, bit_width);
-                *value = value32;
+                                                        value, bit_width);
                 break;
 
         case ACPI_WRITE:
diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c
new file mode 100644
index 000000000000..ad21c7d8bf4f
--- /dev/null
+++ b/drivers/acpi/acpica/hwpci.c
@@ -0,0 +1,412 @@
+/*******************************************************************************
+ *
+ * Module Name: hwpci - Obtain PCI bus, device, and function numbers
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2010, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT          ACPI_NAMESPACE
+ACPI_MODULE_NAME("hwpci")
+
+/* PCI configuration space values */
+#define PCI_CFG_HEADER_TYPE_REG             0x0E
+#define PCI_CFG_PRIMARY_BUS_NUMBER_REG      0x18
+#define PCI_CFG_SECONDARY_BUS_NUMBER_REG    0x19
+/* PCI header values */
+#define PCI_HEADER_TYPE_MASK                0x7F
+#define PCI_TYPE_BRIDGE                     0x01
+#define PCI_TYPE_CARDBUS_BRIDGE             0x02
+typedef struct acpi_pci_device {
+        acpi_handle device;
+        struct acpi_pci_device *next;
+
+} acpi_pci_device;
+
+/* Local prototypes */
+
+static acpi_status
+acpi_hw_build_pci_list(acpi_handle root_pci_device,
+                       acpi_handle pci_region,
+                       struct acpi_pci_device **return_list_head);
+
+static acpi_status
+acpi_hw_process_pci_list(struct acpi_pci_id *pci_id,
+                         struct acpi_pci_device *list_head);
+
+static void acpi_hw_delete_pci_list(struct acpi_pci_device *list_head);
+
+static acpi_status
+acpi_hw_get_pci_device_info(struct acpi_pci_id *pci_id,
+                            acpi_handle pci_device,
+                            u16 *bus_number, u8 *is_bridge);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_derive_pci_id
+ *
+ * PARAMETERS:  pci_id              - Initial values for the PCI ID. May be
+ *                                    modified by this function.
+ *              root_pci_device     - A handle to a PCI device object. This
+ *                                    object must be a PCI Root Bridge having a
+ *                                    _HID value of either PNP0A03 or PNP0A08
+ *              pci_region          - A handle to a PCI configuration space
+ *                                    Operation Region being initialized
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function derives a full PCI ID for a PCI device,
+ *              consisting of a Segment number, Bus number, Device number,
+ *              and function code.
+ *
+ *              The PCI hardware dynamically configures PCI bus numbers
+ *              depending on the bus topology discovered during system
+ *              initialization. This function is invoked during configuration
+ *              of a PCI_Config Operation Region in order to (possibly) update
+ *              the Bus/Device/Function numbers in the pci_id with the actual
+ *              values as determined by the hardware and operating system
+ *              configuration.
+ *
+ *              The pci_id parameter is initially populated during the Operation
+ *              Region initialization. This function is then called, and is
+ *              will make any necessary modifications to the Bus, Device, or
+ *              Function number PCI ID subfields as appropriate for the
+ *              current hardware and OS configuration.
+ *
+ * NOTE:        Created 08/2010. Replaces the previous OSL acpi_os_derive_pci_id
+ *              interface since this feature is OS-independent. This module
+ *              specifically avoids any use of recursion by building a local
+ *              temporary device list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
+                      acpi_handle root_pci_device, acpi_handle pci_region)
+{
+        acpi_status status;
+        struct acpi_pci_device *list_head = NULL;
+
+        ACPI_FUNCTION_TRACE(hw_derive_pci_id);
+
+        if (!pci_id) {
+                return_ACPI_STATUS(AE_BAD_PARAMETER);
+        }
+
+        /* Build a list of PCI devices, from pci_region up to root_pci_device */
+
+        status =
+            acpi_hw_build_pci_list(root_pci_device, pci_region, &list_head);
+        if (ACPI_SUCCESS(status)) {
+
+                /* Walk the list, updating the PCI device/function/bus numbers */
+
+                status = acpi_hw_process_pci_list(pci_id, list_head);
+        }
+
+        /* Always delete the list */
+
+        acpi_hw_delete_pci_list(list_head);
+        return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_build_pci_list
+ *
+ * PARAMETERS:  root_pci_device     - A handle to a PCI device object. This
+ *                                    object is guaranteed to be a PCI Root
+ *                                    Bridge having a _HID value of either
+ *                                    PNP0A03 or PNP0A08
+ *              pci_region          - A handle to the PCI configuration space
+ *                                    Operation Region
+ *              return_list_head    - Where the PCI device list is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Builds a list of devices from the input PCI region up to the
+ *              Root PCI device for this namespace subtree.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_hw_build_pci_list(acpi_handle root_pci_device,
+                       acpi_handle pci_region,
+                       struct acpi_pci_device **return_list_head)
+{
+        acpi_handle current_device;
+        acpi_handle parent_device;
+        acpi_status status;
+        struct acpi_pci_device *list_element;
+        struct acpi_pci_device *list_head = NULL;
+
+        /*
+         * Ascend namespace branch until the root_pci_device is reached, building
+         * a list of device nodes. Loop will exit when either the PCI device is
+         * found, or the root of the namespace is reached.
+         */
+        current_device = pci_region;
+        while (1) {
+                status = acpi_get_parent(current_device, &parent_device);
+                if (ACPI_FAILURE(status)) {
+                        return (status);
+                }
+
+                /* Finished when we reach the PCI root device (PNP0A03 or PNP0A08) */
+
+                if (parent_device == root_pci_device) {
+                        *return_list_head = list_head;
+                        return (AE_OK);
+                }
+
+                list_element = ACPI_ALLOCATE(sizeof(struct acpi_pci_device));
+                if (!list_element) {
+                        return (AE_NO_MEMORY);
+                }
+
+                /* Put new element at the head of the list */
+
+                list_element->next = list_head;
+                list_element->device = parent_device;
+                list_head = list_element;
+
+                current_device = parent_device;
+        }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_process_pci_list
+ *
+ * PARAMETERS:  pci_id              - Initial values for the PCI ID. May be
+ *                                    modified by this function.
+ *              list_head           - Device list created by
+ *                                    acpi_hw_build_pci_list
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Walk downward through the PCI device list, getting the device
+ *              info for each, via the PCI configuration space and updating
+ *              the PCI ID as necessary. Deletes the list during traversal.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_hw_process_pci_list(struct acpi_pci_id *pci_id,
+                         struct acpi_pci_device *list_head)
+{
+        acpi_status status = AE_OK;
+        struct acpi_pci_device *info;
+        u16 bus_number;
+        u8 is_bridge = TRUE;
+
+        ACPI_FUNCTION_NAME(hw_process_pci_list);
+
+        ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+                          "Input PciId:  Seg %4.4X Bus %4.4X Dev %4.4X Func %4.4X\n",
+                          pci_id->segment, pci_id->bus, pci_id->device,
+                          pci_id->function));
+
+        bus_number = pci_id->bus;
+
+        /*
+         * Descend down the namespace tree, collecting PCI device, function,
+         * and bus numbers. bus_number is only important for PCI bridges.
+         * Algorithm: As we descend the tree, use the last valid PCI device,
+         * function, and bus numbers that are discovered, and assign them
+         * to the PCI ID for the target device.
+         */
+        info = list_head;
+        while (info) {
+                status = acpi_hw_get_pci_device_info(pci_id, info->device,
+                                                     &bus_number, &is_bridge);
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+
+                info = info->next;
+        }
+
+        ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
+                          "Output PciId: Seg %4.4X Bus %4.4X Dev %4.4X Func %4.4X "
+                          "Status %X BusNumber %X IsBridge %X\n",
+                          pci_id->segment, pci_id->bus, pci_id->device,
+                          pci_id->function, status, bus_number, is_bridge));
+
+        return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_delete_pci_list
+ *
+ * PARAMETERS:  list_head           - Device list created by
+ *                                    acpi_hw_build_pci_list
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Free the entire PCI list.
+ *
+ ******************************************************************************/
+
+static void acpi_hw_delete_pci_list(struct acpi_pci_device *list_head)
+{
+        struct acpi_pci_device *next;
+        struct acpi_pci_device *previous;
+
+        next = list_head;
+        while (next) {
+                previous = next;
+                next = previous->next;
+                ACPI_FREE(previous);
+        }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_get_pci_device_info
+ *
+ * PARAMETERS:  pci_id              - Initial values for the PCI ID. May be
+ *                                    modified by this function.
+ *              pci_device          - Handle for the PCI device object
+ *              bus_number          - Where a PCI bridge bus number is returned
+ *              is_bridge           - Return value, indicates if this PCI
+ *                                    device is a PCI bridge
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get the device info for a single PCI device object. Get the
+ *              _ADR (contains PCI device and function numbers), and for PCI
+ *              bridge devices, get the bus number from PCI configuration
+ *              space.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_hw_get_pci_device_info(struct acpi_pci_id *pci_id,
+                            acpi_handle pci_device,
+                            u16 *bus_number, u8 *is_bridge)
+{
+        acpi_status status;
+        acpi_object_type object_type;
+        u64 return_value;
+        u64 pci_value;
+
+        /* We only care about objects of type Device */
+
+        status = acpi_get_type(pci_device, &object_type);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        if (object_type != ACPI_TYPE_DEVICE) {
+                return (AE_OK);
+        }
+
+        /* We need an _ADR. Ignore device if not present */
+
+        status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR,
+                                                 pci_device, &return_value);
+        if (ACPI_FAILURE(status)) {
+                return (AE_OK);
+        }
+
+        /*
+         * From _ADR, get the PCI Device and Function and
+         * update the PCI ID.
+         */
+        pci_id->device = ACPI_HIWORD(ACPI_LODWORD(return_value));
+        pci_id->function = ACPI_LOWORD(ACPI_LODWORD(return_value));
+
+        /*
+         * If the previous device was a bridge, use the previous
+         * device bus number
+         */
+        if (*is_bridge) {
+                pci_id->bus = *bus_number;
+        }
+
+        /*
+         * Get the bus numbers from PCI Config space:
+         *
+         * First, get the PCI header_type
+         */
+        *is_bridge = FALSE;
+        status = acpi_os_read_pci_configuration(pci_id,
+                                                PCI_CFG_HEADER_TYPE_REG,
+                                                &pci_value, 8);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        /* We only care about bridges (1=pci_bridge, 2=card_bus_bridge) */
+
+        pci_value &= PCI_HEADER_TYPE_MASK;
+
+        if ((pci_value != PCI_TYPE_BRIDGE) &&
+            (pci_value != PCI_TYPE_CARDBUS_BRIDGE)) {
+                return (AE_OK);
+        }
+
+        /* Bridge: Get the Primary bus_number */
+
+        status = acpi_os_read_pci_configuration(pci_id,
+                                                PCI_CFG_PRIMARY_BUS_NUMBER_REG,
+                                                &pci_value, 8);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        *is_bridge = TRUE;
+        pci_id->bus = (u16)pci_value;
+
+        /* Bridge: Get the Secondary bus_number */
+
+        status = acpi_os_read_pci_configuration(pci_id,
+                                                PCI_CFG_SECONDARY_BUS_NUMBER_REG,
+                                                &pci_value, 8);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        *bus_number = (u16)pci_value;
+        return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 4009498fbabd..4ef9f43ea926 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -74,10 +74,18 @@ acpi_ns_repair_ALR(struct acpi_predefined_data *data,
                    union acpi_operand_object **return_object_ptr);
 
 static acpi_status
+acpi_ns_repair_CID(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr);
+
+static acpi_status
 acpi_ns_repair_FDE(struct acpi_predefined_data *data,
                    union acpi_operand_object **return_object_ptr);
 
 static acpi_status
+acpi_ns_repair_HID(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr);
+
+static acpi_status
 acpi_ns_repair_PSS(struct acpi_predefined_data *data,
                    union acpi_operand_object **return_object_ptr);
 
@@ -108,8 +116,10 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
  * As necessary:
  *
  * _ALR: Sort the list ascending by ambient_illuminance
+ * _CID: Strings: uppercase all, remove any leading asterisk
  * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs
  * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs
+ * _HID: Strings: uppercase all, remove any leading asterisk
  * _PSS: Sort the list descending by Power
  * _TSS: Sort the list descending by Power
  *
@@ -122,8 +132,10 @@ acpi_ns_sort_list(union acpi_operand_object **elements,
  */
 static const struct acpi_repair_info acpi_ns_repairable_names[] = {
         {"_ALR", acpi_ns_repair_ALR},
+        {"_CID", acpi_ns_repair_CID},
         {"_FDE", acpi_ns_repair_FDE},
         {"_GTM", acpi_ns_repair_FDE},   /* _GTM has same repair as _FDE */
+        {"_HID", acpi_ns_repair_HID},
         {"_PSS", acpi_ns_repair_PSS},
         {"_TSS", acpi_ns_repair_TSS},
         {{0, 0, 0, 0}, NULL}    /* Table terminator */
@@ -321,6 +333,157 @@ acpi_ns_repair_FDE(struct acpi_predefined_data *data,
 
 /******************************************************************************
  *
+ * FUNCTION:    acpi_ns_repair_CID
+ *
+ * PARAMETERS:  Data                - Pointer to validation data structure
+ *              return_object_ptr   - Pointer to the object returned from the
+ *                                    evaluation of a method or object
+ *
+ * RETURN:      Status. AE_OK if object is OK or was repaired successfully
+ *
+ * DESCRIPTION: Repair for the _CID object. If a string, ensure that all
+ *              letters are uppercase and that there is no leading asterisk.
+ *              If a Package, ensure same for all string elements.
+ *
+ *****************************************************************************/
+
+static acpi_status
+acpi_ns_repair_CID(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr)
+{
+        acpi_status status;
+        union acpi_operand_object *return_object = *return_object_ptr;
+        union acpi_operand_object **element_ptr;
+        union acpi_operand_object *original_element;
+        u16 original_ref_count;
+        u32 i;
+
+        /* Check for _CID as a simple string */
+
+        if (return_object->common.type == ACPI_TYPE_STRING) {
+                status = acpi_ns_repair_HID(data, return_object_ptr);
+                return (status);
+        }
+
+        /* Exit if not a Package */
+
+        if (return_object->common.type != ACPI_TYPE_PACKAGE) {
+                return (AE_OK);
+        }
+
+        /* Examine each element of the _CID package */
+
+        element_ptr = return_object->package.elements;
+        for (i = 0; i < return_object->package.count; i++) {
+                original_element = *element_ptr;
+                original_ref_count = original_element->common.reference_count;
+
+                status = acpi_ns_repair_HID(data, element_ptr);
+                if (ACPI_FAILURE(status)) {
+                        return (status);
+                }
+
+                /* Take care with reference counts */
+
+                if (original_element != *element_ptr) {
+
+                        /* Element was replaced */
+
+                        (*element_ptr)->common.reference_count =
+                            original_ref_count;
+
+                        acpi_ut_remove_reference(original_element);
+                }
+
+                element_ptr++;
+        }
+
+        return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_repair_HID
+ *
+ * PARAMETERS:  Data                - Pointer to validation data structure
+ *              return_object_ptr   - Pointer to the object returned from the
+ *                                    evaluation of a method or object
+ *
+ * RETURN:      Status. AE_OK if object is OK or was repaired successfully
+ *
+ * DESCRIPTION: Repair for the _HID object. If a string, ensure that all
+ *              letters are uppercase and that there is no leading asterisk.
+ *
+ *****************************************************************************/
+
+static acpi_status
+acpi_ns_repair_HID(struct acpi_predefined_data *data,
+                   union acpi_operand_object **return_object_ptr)
+{
+        union acpi_operand_object *return_object = *return_object_ptr;
+        union acpi_operand_object *new_string;
+        char *source;
+        char *dest;
+
+        ACPI_FUNCTION_NAME(ns_repair_HID);
+
+        /* We only care about string _HID objects (not integers) */
+
+        if (return_object->common.type != ACPI_TYPE_STRING) {
+                return (AE_OK);
+        }
+
+        if (return_object->string.length == 0) {
+                ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags,
+                                      "Invalid zero-length _HID or _CID string"));
+
+                /* Return AE_OK anyway, let driver handle it */
+
+                data->flags |= ACPI_OBJECT_REPAIRED;
+                return (AE_OK);
+        }
+
+        /* It is simplest to always create a new string object */
+
+        new_string = acpi_ut_create_string_object(return_object->string.length);
+        if (!new_string) {
+                return (AE_NO_MEMORY);
+        }
+
+        /*
+         * Remove a leading asterisk if present. For some unknown reason, there
+         * are many machines in the field that contains IDs like this.
+         *
+         * Examples: "*PNP0C03", "*ACPI0003"
+         */
+        source = return_object->string.pointer;
+        if (*source == '*') {
+                source++;
+                new_string->string.length--;
+
+                ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+                                  "%s: Removed invalid leading asterisk\n",
+                                  data->pathname));
+        }
+
+        /*
+         * Copy and uppercase the string. From the ACPI specification:
+         *
+         * A valid PNP ID must be of the form "AAA####" where A is an uppercase
+         * letter and # is a hex digit. A valid ACPI ID must be of the form
+         * "ACPI####" where # is a hex digit.
+         */
+        for (dest = new_string->string.pointer; *source; dest++, source++) {
+                *dest = (char)ACPI_TOUPPER(*source);
+        }
+
+        acpi_ut_remove_reference(return_object);
+        *return_object_ptr = new_string;
+        return (AE_OK);
+}
+
+/******************************************************************************
+ *
  * FUNCTION:    acpi_ns_repair_TSS
  *
  * PARAMETERS:  Data                - Pointer to validation data structure
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index e1add3491b04..a7d6ad9c111b 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -60,104 +60,6 @@ acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node *node_to_search);
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_report_error
- *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
- *              internal_name       - Name or path of the namespace node
- *              lookup_status       - Exception code from NS lookup
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print warning message with full pathname
- *
- ******************************************************************************/
-
-void
-acpi_ns_report_error(const char *module_name,
-                     u32 line_number,
-                     const char *internal_name, acpi_status lookup_status)
-{
-        acpi_status status;
-        u32 bad_name;
-        char *name = NULL;
-
-        acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-
-        if (lookup_status == AE_BAD_CHARACTER) {
-
-                /* There is a non-ascii character in the name */
-
-                ACPI_MOVE_32_TO_32(&bad_name,
-                                   ACPI_CAST_PTR(u32, internal_name));
-                acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
-        } else {
-                /* Convert path to external format */
-
-                status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
-                                                  internal_name, NULL, &name);
-
-                /* Print target name */
-
-                if (ACPI_SUCCESS(status)) {
-                        acpi_os_printf("[%s]", name);
-                } else {
-                        acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
-                }
-
-                if (name) {
-                        ACPI_FREE(name);
-                }
-        }
-
-        acpi_os_printf(" Namespace lookup failure, %s\n",
-                       acpi_format_exception(lookup_status));
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ns_report_method_error
- *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
- *              Message             - Error message to use on failure
- *              prefix_node         - Prefix relative to the path
- *              Path                - Path to the node (optional)
- *              method_status       - Execution status
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print warning message with full pathname
- *
- ******************************************************************************/
-
-void
-acpi_ns_report_method_error(const char *module_name,
-                            u32 line_number,
-                            const char *message,
-                            struct acpi_namespace_node *prefix_node,
-                            const char *path, acpi_status method_status)
-{
-        acpi_status status;
-        struct acpi_namespace_node *node = prefix_node;
-
-        acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
-
-        if (path) {
-                status =
-                    acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
-                                     &node);
-                if (ACPI_FAILURE(status)) {
-                        acpi_os_printf("[Could not get node by pathname]");
-                }
-        }
-
-        acpi_ns_print_node_pathname(node, message);
-        acpi_os_printf(", %s\n", acpi_format_exception(method_status));
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ns_print_node_pathname
  *
  * PARAMETERS:  Node            - Object
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 1728cb9bf600..d2ff4325c427 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -49,7 +49,7 @@
 ACPI_MODULE_NAME("tbfadt")
 
 /* Local prototypes */
-static inline void
+static ACPI_INLINE void
 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
                              u8 space_id, u8 byte_width, u64 address);
 
@@ -181,7 +181,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = {
  *
  ******************************************************************************/
 
-static inline void
+static ACPI_INLINE void
 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
                              u8 space_id, u8 byte_width, u64 address)
 {
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 983510640059..f21c486929a5 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -179,9 +179,8 @@ acpi_debug_print(u32 requested_debug_level,
         if (thread_id != acpi_gbl_prev_thread_id) {
                 if (ACPI_LV_THREADS & acpi_dbg_level) {
                         acpi_os_printf
-                            ("\n**** Context Switch from TID %p to TID %p ****\n\n",
-                             ACPI_CAST_PTR(void, acpi_gbl_prev_thread_id),
-                             ACPI_CAST_PTR(void, thread_id));
+                            ("\n**** Context Switch from TID %u to TID %u ****\n\n",
+                             (u32)acpi_gbl_prev_thread_id, (u32)thread_id);
                 }
 
                 acpi_gbl_prev_thread_id = thread_id;
@@ -194,7 +193,7 @@ acpi_debug_print(u32 requested_debug_level,
         acpi_os_printf("%8s-%04ld ", module_name, line_number);
 
         if (ACPI_LV_THREADS & acpi_dbg_level) {
-                acpi_os_printf("[%p] ", ACPI_CAST_PTR(void, thread_id));
+                acpi_os_printf("[%u] ", (u32)thread_id);
         }
 
         acpi_os_printf("[%02ld] %-22.22s: ",
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 6dfdeb653490..22f59ef604e0 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -48,153 +48,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("uteval")
 
-/*
- * Strings supported by the _OSI predefined (internal) method.
- *
- * March 2009: Removed "Linux" as this host no longer wants to respond true
- * for this string. Basically, the only safe OS strings are windows-related
- * and in many or most cases represent the only test path within the
- * BIOS-provided ASL code.
- *
- * The second element of each entry is used to track the newest version of
- * Windows that the BIOS has requested.
- */
-static struct acpi_interface_info acpi_interfaces_supported[] = {
-        /* Operating System Vendor Strings */
-
-        {"Windows 2000", ACPI_OSI_WIN_2000},    /* Windows 2000 */
-        {"Windows 2001", ACPI_OSI_WIN_XP},      /* Windows XP */
-        {"Windows 2001 SP1", ACPI_OSI_WIN_XP_SP1},      /* Windows XP SP1 */
-        {"Windows 2001.1", ACPI_OSI_WINSRV_2003},       /* Windows Server 2003 */
-        {"Windows 2001 SP2", ACPI_OSI_WIN_XP_SP2},      /* Windows XP SP2 */
-        {"Windows 2001.1 SP1", ACPI_OSI_WINSRV_2003_SP1},       /* Windows Server 2003 SP1 - Added 03/2006 */
-        {"Windows 2006", ACPI_OSI_WIN_VISTA},   /* Windows Vista - Added 03/2006 */
-        {"Windows 2006.1", ACPI_OSI_WINSRV_2008},       /* Windows Server 2008 - Added 09/2009 */
-        {"Windows 2006 SP1", ACPI_OSI_WIN_VISTA_SP1},   /* Windows Vista SP1 - Added 09/2009 */
-        {"Windows 2009", ACPI_OSI_WIN_7},       /* Windows 7 and Server 2008 R2 - Added 09/2009 */
-
-        /* Feature Group Strings */
-
-        {"Extended Address Space Descriptor", 0}
-
-        /*
-         * All "optional" feature group strings (features that are implemented
-         * by the host) should be implemented in the host version of
-         * acpi_os_validate_interface and should not be added here.
-         */
-};
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_osi_implementation
- *
- * PARAMETERS:  walk_state          - Current walk state
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Implementation of the _OSI predefined control method
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state)
-{
-        acpi_status status;
-        union acpi_operand_object *string_desc;
-        union acpi_operand_object *return_desc;
-        u32 return_value;
-        u32 i;
-
-        ACPI_FUNCTION_TRACE(ut_osi_implementation);
-
-        /* Validate the string input argument */
-
-        string_desc = walk_state->arguments[0].object;
-        if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
-                return_ACPI_STATUS(AE_TYPE);
-        }
-
-        /* Create a return object */
-
-        return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
-        if (!return_desc) {
-                return_ACPI_STATUS(AE_NO_MEMORY);
-        }
-
-        /* Default return value is 0, NOT SUPPORTED */
-
-        return_value = 0;
-
-        /* Compare input string to static table of supported interfaces */
-
-        for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
-                if (!ACPI_STRCMP(string_desc->string.pointer,
-                                 acpi_interfaces_supported[i].name)) {
-                        /*
-                         * The interface is supported.
-                         * Update the osi_data if necessary. We keep track of the latest
-                         * version of Windows that has been requested by the BIOS.
-                         */
-                        if (acpi_interfaces_supported[i].value >
-                            acpi_gbl_osi_data) {
-                                acpi_gbl_osi_data =
-                                    acpi_interfaces_supported[i].value;
-                        }
-
-                        return_value = ACPI_UINT32_MAX;
-                        goto exit;
-                }
-        }
-
-        /*
-         * Did not match the string in the static table, call the host OSL to
-         * check for a match with one of the optional strings (such as
-         * "Module Device", "3.0 Thermal Model", etc.)
-         */
-        status = acpi_os_validate_interface(string_desc->string.pointer);
-        if (ACPI_SUCCESS(status)) {
-
-                /* The interface is supported */
-
-                return_value = ACPI_UINT32_MAX;
-        }
-
-exit:
-        ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO,
-                "ACPI: BIOS _OSI(%s) is %ssupported\n",
-                string_desc->string.pointer, return_value == 0 ? "not " : ""));
-
-        /* Complete the return value */
-
-        return_desc->integer.value = return_value;
-        walk_state->return_desc = return_desc;
-        return_ACPI_STATUS (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_osi_invalidate
- *
- * PARAMETERS:  interface_string
- *
- * RETURN:      Status
- *
- * DESCRIPTION: invalidate string in pre-defiend _OSI string list
- *
- ******************************************************************************/
-
-acpi_status acpi_osi_invalidate(char *interface)
-{
-        int i;
-
-        for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) {
-                if (!ACPI_STRCMP(interface, acpi_interfaces_supported[i].name)) {
-                        *acpi_interfaces_supported[i].name = '\0';
-                        return AE_OK;
-                }
-        }
-        return AE_NOT_FOUND;
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_evaluate_object
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 0558747579ef..4a5dcaa268de 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -154,14 +154,16 @@ ACPI_EXPORT_SYMBOL(acpi_format_exception)
  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
  *    during the initialization sequence.
  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
- *    perform a Notify() operation on it.
+ *    perform a Notify() operation on it. 09/2010: Changed to type Device.
+ *    This still allows notifies, but does not confuse host code that
+ *    searches for valid thermal_zone objects.
  */
 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
         {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
         {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
         {"_SB_", ACPI_TYPE_DEVICE, NULL},
         {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
-        {"_TZ_", ACPI_TYPE_THERMAL, NULL},
+        {"_TZ_", ACPI_TYPE_DEVICE, NULL},
         {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
         {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
         {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
@@ -774,6 +776,7 @@ acpi_status acpi_ut_init_globals(void)
         acpi_gbl_exception_handler = NULL;
         acpi_gbl_init_handler = NULL;
         acpi_gbl_table_handler = NULL;
+        acpi_gbl_interface_handler = NULL;
 
         /* Global Lock support */
 
@@ -800,6 +803,7 @@ acpi_status acpi_ut_init_globals(void)
         acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
         acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
         acpi_gbl_osi_data = 0;
+        acpi_gbl_osi_mutex = NULL;
 
         /* Hardware oriented */
 
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 1397fadd0d4b..d2906328535d 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -48,42 +48,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utids")
 
-/* Local prototypes */
-static void acpi_ut_copy_id_string(char *destination, char *source);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_copy_id_string
- *
- * PARAMETERS:  Destination         - Where to copy the string
- *              Source              - Source string
- *
- * RETURN:      None
- *
- * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods.
- *              Performs removal of a leading asterisk if present -- workaround
- *              for a known issue on a bunch of machines.
- *
- ******************************************************************************/
-
-static void acpi_ut_copy_id_string(char *destination, char *source)
-{
-
-        /*
-         * Workaround for ID strings that have a leading asterisk. This construct
-         * is not allowed by the ACPI specification  (ID strings must be
-         * alphanumeric), but enough existing machines have this embedded in their
-         * ID strings that the following code is useful.
-         */
-        if (*source == '*') {
-                source++;
-        }
-
-        /* Do the actual copy */
-
-        ACPI_STRCPY(destination, source);
-}
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_execute_HID
@@ -101,7 +65,6 @@ static void acpi_ut_copy_id_string(char *destination, char *source)
  *              NOTE: Internal function, no parameter validation
  *
  ******************************************************************************/
-
 acpi_status
 acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
                     struct acpica_device_id **return_id)
@@ -147,7 +110,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node,
         if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
                 acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value);
         } else {
-                acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer);
+                ACPI_STRCPY(hid->string, obj_desc->string.pointer);
         }
 
         hid->length = length;
@@ -224,7 +187,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node,
         if (obj_desc->common.type == ACPI_TYPE_INTEGER) {
                 acpi_ex_integer_to_string(uid->string, obj_desc->integer.value);
         } else {
-                acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer);
+                ACPI_STRCPY(uid->string, obj_desc->string.pointer);
         }
 
         uid->length = length;
@@ -357,8 +320,8 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
 
                         /* Copy the String CID from the returned object */
 
-                        acpi_ut_copy_id_string(next_id_string,
-                                               cid_objects[i]->string.pointer);
+                        ACPI_STRCPY(next_id_string,
+                                    cid_objects[i]->string.pointer);
                         length = cid_objects[i]->string.length + 1;
                 }
 
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index a39c93dac719..c1b1c803ea9b 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -117,6 +117,10 @@ void acpi_ut_subsystem_shutdown(void)
         /* Close the acpi_event Handling */
 
         acpi_ev_terminate();
+
+        /* Delete any dynamic _OSI interfaces */
+
+        acpi_ut_interface_terminate();
 #endif
 
         /* Close the Namespace */
diff --git a/drivers/acpi/acpica/utmath.c b/drivers/acpi/acpica/utmath.c
index 35059a14eb72..49cf7b7fd816 100644
--- a/drivers/acpi/acpica/utmath.c
+++ b/drivers/acpi/acpica/utmath.c
@@ -48,11 +48,27 @@
 ACPI_MODULE_NAME("utmath")
 
 /*
- * Support for double-precision integer divide.  This code is included here
- * in order to support kernel environments where the double-precision math
- * library is not available.
+ * Optional support for 64-bit double-precision integer divide. This code
+ * is configurable and is implemented in order to support 32-bit kernel
+ * environments where a 64-bit double-precision math library is not available.
+ *
+ * Support for a more normal 64-bit divide/modulo (with check for a divide-
+ * by-zero) appears after this optional section of code.
  */
 #ifndef ACPI_USE_NATIVE_DIVIDE
+/* Structures used only for 64-bit divide */
+typedef struct uint64_struct {
+        u32 lo;
+        u32 hi;
+
+} uint64_struct;
+
+typedef union uint64_overlay {
+        u64 full;
+        struct uint64_struct part;
+
+} uint64_overlay;
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_short_divide
@@ -69,6 +85,7 @@ ACPI_MODULE_NAME("utmath")
  *              32-bit remainder.
  *
  ******************************************************************************/
+
 acpi_status
 acpi_ut_short_divide(u64 dividend,
                      u32 divisor, u64 *out_quotient, u32 *out_remainder)
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index e8d0724ee403..c7d0e05ef5a4 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -50,11 +50,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utmisc")
 
-/*
- * Common suffix for messages
- */
-#define ACPI_COMMON_MSG_SUFFIX \
-        acpi_os_printf(" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number)
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_validate_exception
@@ -1044,160 +1039,3 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object,
 
         return_ACPI_STATUS(AE_AML_INTERNAL);
 }
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_error, acpi_exception, acpi_warning, acpi_info
- *
- * PARAMETERS:  module_name         - Caller's module name (for error output)
- *              line_number         - Caller's line number (for error output)
- *              Format              - Printf format string + additional args
- *
- * RETURN:      None
- *
- * DESCRIPTION: Print message with module/line/version info
- *
- ******************************************************************************/
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_error(const char *module_name, u32 line_number, const char *format, ...)
-{
-        va_list args;
-
-        acpi_os_printf("ACPI Error: ");
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        ACPI_COMMON_MSG_SUFFIX;
-        va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_exception(const char *module_name,
-               u32 line_number, acpi_status status, const char *format, ...)
-{
-        va_list args;
-
-        acpi_os_printf("ACPI Exception: %s, ", acpi_format_exception(status));
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        ACPI_COMMON_MSG_SUFFIX;
-        va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
-{
-        va_list args;
-
-        acpi_os_printf("ACPI Warning: ");
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        ACPI_COMMON_MSG_SUFFIX;
-        va_end(args);
-}
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_info(const char *module_name, u32 line_number, const char *format, ...)
-{
-        va_list args;
-
-        acpi_os_printf("ACPI: ");
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        acpi_os_printf("\n");
-        va_end(args);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_error)
-ACPI_EXPORT_SYMBOL(acpi_exception)
-ACPI_EXPORT_SYMBOL(acpi_warning)
-ACPI_EXPORT_SYMBOL(acpi_info)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_predefined_warning
- *
- * PARAMETERS:  module_name     - Caller's module name (for error output)
- *              line_number     - Caller's line number (for error output)
- *              Pathname        - Full pathname to the node
- *              node_flags      - From Namespace node for the method/object
- *              Format          - Printf format string + additional args
- *
- * RETURN:      None
- *
- * DESCRIPTION: Warnings for the predefined validation module. Messages are
- *              only emitted the first time a problem with a particular
- *              method/object is detected. This prevents a flood of error
- *              messages for methods that are repeatedly evaluated.
- *
-******************************************************************************/
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_predefined_warning(const char *module_name,
-                           u32 line_number,
-                           char *pathname,
-                           u8 node_flags, const char *format, ...)
-{
-        va_list args;
-
-        /*
-         * Warning messages for this method/object will be disabled after the
-         * first time a validation fails or an object is successfully repaired.
-         */
-        if (node_flags & ANOBJ_EVALUATED) {
-                return;
-        }
-
-        acpi_os_printf("ACPI Warning for %s: ", pathname);
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        ACPI_COMMON_MSG_SUFFIX;
-        va_end(args);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_predefined_info
- *
- * PARAMETERS:  module_name     - Caller's module name (for error output)
- *              line_number     - Caller's line number (for error output)
- *              Pathname        - Full pathname to the node
- *              node_flags      - From Namespace node for the method/object
- *              Format          - Printf format string + additional args
- *
- * RETURN:      None
- *
- * DESCRIPTION: Info messages for the predefined validation module. Messages
- *              are only emitted the first time a problem with a particular
- *              method/object is detected. This prevents a flood of
- *              messages for methods that are repeatedly evaluated.
- *
- ******************************************************************************/
-
-void ACPI_INTERNAL_VAR_XFACE
-acpi_ut_predefined_info(const char *module_name,
-                        u32 line_number,
-                        char *pathname, u8 node_flags, const char *format, ...)
-{
-        va_list args;
-
-        /*
-         * Warning messages for this method/object will be disabled after the
-         * first time a validation fails or an object is successfully repaired.
-         */
-        if (node_flags & ANOBJ_EVALUATED) {
-                return;
-        }
-
-        acpi_os_printf("ACPI Info for %s: ", pathname);
-
-        va_start(args, format);
-        acpi_os_vprintf(format, args);
-        ACPI_COMMON_MSG_SUFFIX;
-        va_end(args);
-}
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index f5cca3a1300c..d9efa495b433 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -86,6 +86,12 @@ acpi_status acpi_ut_mutex_initialize(void)
         spin_lock_init(acpi_gbl_gpe_lock);
         spin_lock_init(acpi_gbl_hardware_lock);
 
+        /* Mutex for _OSI support */
+        status = acpi_os_create_mutex(&acpi_gbl_osi_mutex);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
         /* Create the reader/writer lock for namespace access */
 
         status = acpi_ut_create_rw_lock(&acpi_gbl_namespace_rw_lock);
@@ -117,6 +123,8 @@ void acpi_ut_mutex_terminate(void)
                 acpi_ut_delete_mutex(i);
         }
 
+        acpi_os_delete_mutex(acpi_gbl_osi_mutex);
+
         /* Delete the spinlocks */
 
         acpi_os_delete_lock(acpi_gbl_gpe_lock);
@@ -220,18 +228,17 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
                         if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
                                 if (i == mutex_id) {
                                         ACPI_ERROR((AE_INFO,
-                                                    "Mutex [%s] already acquired by this thread [%p]",
+                                                    "Mutex [%s] already acquired by this thread [%u]",
                                                     acpi_ut_get_mutex_name
                                                     (mutex_id),
-                                                    ACPI_CAST_PTR(void,
-                                                                  this_thread_id)));
+                                                    (u32)this_thread_id));
 
                                         return (AE_ALREADY_ACQUIRED);
                                 }
 
                                 ACPI_ERROR((AE_INFO,
-                                            "Invalid acquire order: Thread %p owns [%s], wants [%s]",
-                                            ACPI_CAST_PTR(void, this_thread_id),
+                                            "Invalid acquire order: Thread %u owns [%s], wants [%s]",
+                                            (u32)this_thread_id,
                                             acpi_ut_get_mutex_name(i),
                                             acpi_ut_get_mutex_name(mutex_id)));
 
@@ -242,24 +249,24 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 #endif
 
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
-                          "Thread %p attempting to acquire Mutex [%s]\n",
-                          ACPI_CAST_PTR(void, this_thread_id),
+                          "Thread %u attempting to acquire Mutex [%s]\n",
+                          (u32)this_thread_id,
                           acpi_ut_get_mutex_name(mutex_id)));
 
         status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
                                        ACPI_WAIT_FOREVER);
         if (ACPI_SUCCESS(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
-                                  "Thread %p acquired Mutex [%s]\n",
-                                  ACPI_CAST_PTR(void, this_thread_id),
+                                  "Thread %u acquired Mutex [%s]\n",
+                                  (u32)this_thread_id,
                                   acpi_ut_get_mutex_name(mutex_id)));
 
                 acpi_gbl_mutex_info[mutex_id].use_count++;
                 acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id;
         } else {
                 ACPI_EXCEPTION((AE_INFO, status,
-                                "Thread %p could not acquire Mutex [0x%X]",
-                                ACPI_CAST_PTR(void, this_thread_id), mutex_id));
+                                "Thread %u could not acquire Mutex [0x%X]",
+                                (u32)this_thread_id, mutex_id));
         }
 
         return (status);
@@ -279,10 +286,14 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 
 acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
 {
+        acpi_thread_id this_thread_id;
+
         ACPI_FUNCTION_NAME(ut_release_mutex);
 
-        ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %p releasing Mutex [%s]\n",
-                          ACPI_CAST_PTR(void, acpi_os_get_thread_id()),
+        this_thread_id = acpi_os_get_thread_id();
+
+        ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %u releasing Mutex [%s]\n",
+                          (u32)this_thread_id,
                           acpi_ut_get_mutex_name(mutex_id)));
 
         if (mutex_id > ACPI_MAX_MUTEX) {
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
new file mode 100644
index 000000000000..18c59a85fdca
--- /dev/null
+++ b/drivers/acpi/acpica/utosi.c
@@ -0,0 +1,380 @@
+/******************************************************************************
+ *
+ * Module Name: utosi - Support for the _OSI predefined control method
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2010, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utosi")
+
+/*
+ * Strings supported by the _OSI predefined control method (which is
+ * implemented internally within this module.)
+ *
+ * March 2009: Removed "Linux" as this host no longer wants to respond true
+ * for this string. Basically, the only safe OS strings are windows-related
+ * and in many or most cases represent the only test path within the
+ * BIOS-provided ASL code.
+ *
+ * The last element of each entry is used to track the newest version of
+ * Windows that the BIOS has requested.
+ */
+static struct acpi_interface_info acpi_default_supported_interfaces[] = {
+        /* Operating System Vendor Strings */
+
+        {"Windows 2000", NULL, 0, ACPI_OSI_WIN_2000},   /* Windows 2000 */
+        {"Windows 2001", NULL, 0, ACPI_OSI_WIN_XP},     /* Windows XP */
+        {"Windows 2001 SP1", NULL, 0, ACPI_OSI_WIN_XP_SP1},     /* Windows XP SP1 */
+        {"Windows 2001.1", NULL, 0, ACPI_OSI_WINSRV_2003},      /* Windows Server 2003 */
+        {"Windows 2001 SP2", NULL, 0, ACPI_OSI_WIN_XP_SP2},     /* Windows XP SP2 */
+        {"Windows 2001.1 SP1", NULL, 0, ACPI_OSI_WINSRV_2003_SP1},      /* Windows Server 2003 SP1 - Added 03/2006 */
+        {"Windows 2006", NULL, 0, ACPI_OSI_WIN_VISTA},  /* Windows Vista - Added 03/2006 */
+        {"Windows 2006.1", NULL, 0, ACPI_OSI_WINSRV_2008},      /* Windows Server 2008 - Added 09/2009 */
+        {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1},  /* Windows Vista SP1 - Added 09/2009 */
+        {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2},  /* Windows Vista SP2 - Added 09/2010 */
+        {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7},      /* Windows 7 and Server 2008 R2 - Added 09/2009 */
+
+        /* Feature Group Strings */
+
+        {"Extended Address Space Descriptor", NULL, 0, 0}
+
+        /*
+         * All "optional" feature group strings (features that are implemented
+         * by the host) should be dynamically added by the host via
+         * acpi_install_interface and should not be manually added here.
+         *
+         * Examples of optional feature group strings:
+         *
+         * "Module Device"
+         * "Processor Device"
+         * "3.0 Thermal Model"
+         * "3.0 _SCP Extensions"
+         * "Processor Aggregator Device"
+         */
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_initialize_interfaces
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize the global _OSI supported interfaces list
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_initialize_interfaces(void)
+{
+        u32 i;
+
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+        acpi_gbl_supported_interfaces = acpi_default_supported_interfaces;
+
+        /* Link the static list of supported interfaces */
+
+        for (i = 0;
+             i < (ACPI_ARRAY_LENGTH(acpi_default_supported_interfaces) - 1);
+             i++) {
+                acpi_default_supported_interfaces[i].next =
+                    &acpi_default_supported_interfaces[(acpi_size) i + 1];
+        }
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_interface_terminate
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete all interfaces in the global list. Sets
+ *              acpi_gbl_supported_interfaces to NULL.
+ *
+ ******************************************************************************/
+
+void acpi_ut_interface_terminate(void)
+{
+        struct acpi_interface_info *next_interface;
+
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+        next_interface = acpi_gbl_supported_interfaces;
+
+        while (next_interface) {
+                acpi_gbl_supported_interfaces = next_interface->next;
+
+                /* Only interfaces added at runtime can be freed */
+
+                if (next_interface->flags & ACPI_OSI_DYNAMIC) {
+                        ACPI_FREE(next_interface->name);
+                        ACPI_FREE(next_interface);
+                }
+
+                next_interface = acpi_gbl_supported_interfaces;
+        }
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_install_interface
+ *
+ * PARAMETERS:  interface_name      - The interface to install
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install the interface into the global interface list.
+ *              Caller MUST hold acpi_gbl_osi_mutex
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_install_interface(acpi_string interface_name)
+{
+        struct acpi_interface_info *interface_info;
+
+        /* Allocate info block and space for the name string */
+
+        interface_info =
+            ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_interface_info));
+        if (!interface_info) {
+                return (AE_NO_MEMORY);
+        }
+
+        interface_info->name =
+            ACPI_ALLOCATE_ZEROED(ACPI_STRLEN(interface_name) + 1);
+        if (!interface_info->name) {
+                ACPI_FREE(interface_info);
+                return (AE_NO_MEMORY);
+        }
+
+        /* Initialize new info and insert at the head of the global list */
+
+        ACPI_STRCPY(interface_info->name, interface_name);
+        interface_info->flags = ACPI_OSI_DYNAMIC;
+        interface_info->next = acpi_gbl_supported_interfaces;
+
+        acpi_gbl_supported_interfaces = interface_info;
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_remove_interface
+ *
+ * PARAMETERS:  interface_name      - The interface to remove
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Remove the interface from the global interface list.
+ *              Caller MUST hold acpi_gbl_osi_mutex
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_remove_interface(acpi_string interface_name)
+{
+        struct acpi_interface_info *previous_interface;
+        struct acpi_interface_info *next_interface;
+
+        previous_interface = next_interface = acpi_gbl_supported_interfaces;
+        while (next_interface) {
+                if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+
+                        /* Found: name is in either the static list or was added at runtime */
+
+                        if (next_interface->flags & ACPI_OSI_DYNAMIC) {
+
+                                /* Interface was added dynamically, remove and free it */
+
+                                if (previous_interface == next_interface) {
+                                        acpi_gbl_supported_interfaces =
+                                            next_interface->next;
+                                } else {
+                                        previous_interface->next =
+                                            next_interface->next;
+                                }
+
+                                ACPI_FREE(next_interface->name);
+                                ACPI_FREE(next_interface);
+                        } else {
+                                /*
+                                 * Interface is in static list. If marked invalid, then it
+                                 * does not actually exist. Else, mark it invalid.
+                                 */
+                                if (next_interface->flags & ACPI_OSI_INVALID) {
+                                        return (AE_NOT_EXIST);
+                                }
+
+                                next_interface->flags |= ACPI_OSI_INVALID;
+                        }
+
+                        return (AE_OK);
+                }
+
+                previous_interface = next_interface;
+                next_interface = next_interface->next;
+        }
+
+        /* Interface was not found */
+
+        return (AE_NOT_EXIST);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_interface
+ *
+ * PARAMETERS:  interface_name      - The interface to find
+ *
+ * RETURN:      struct acpi_interface_info if found. NULL if not found.
+ *
+ * DESCRIPTION: Search for the specified interface name in the global list.
+ *              Caller MUST hold acpi_gbl_osi_mutex
+ *
+ ******************************************************************************/
+
+struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name)
+{
+        struct acpi_interface_info *next_interface;
+
+        next_interface = acpi_gbl_supported_interfaces;
+        while (next_interface) {
+                if (!ACPI_STRCMP(interface_name, next_interface->name)) {
+                        return (next_interface);
+                }
+
+                next_interface = next_interface->next;
+        }
+
+        return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_osi_implementation
+ *
+ * PARAMETERS:  walk_state          - Current walk state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Implementation of the _OSI predefined control method. When
+ *              an invocation of _OSI is encountered in the system AML,
+ *              control is transferred to this function.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
+{
+        union acpi_operand_object *string_desc;
+        union acpi_operand_object *return_desc;
+        struct acpi_interface_info *interface_info;
+        acpi_interface_handler interface_handler;
+        u32 return_value;
+
+        ACPI_FUNCTION_TRACE(ut_osi_implementation);
+
+        /* Validate the string input argument (from the AML caller) */
+
+        string_desc = walk_state->arguments[0].object;
+        if (!string_desc || (string_desc->common.type != ACPI_TYPE_STRING)) {
+                return_ACPI_STATUS(AE_TYPE);
+        }
+
+        /* Create a return object */
+
+        return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+        if (!return_desc) {
+                return_ACPI_STATUS(AE_NO_MEMORY);
+        }
+
+        /* Default return value is 0, NOT SUPPORTED */
+
+        return_value = 0;
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+
+        /* Lookup the interface in the global _OSI list */
+
+        interface_info = acpi_ut_get_interface(string_desc->string.pointer);
+        if (interface_info && !(interface_info->flags & ACPI_OSI_INVALID)) {
+                /*
+                 * The interface is supported.
+                 * Update the osi_data if necessary. We keep track of the latest
+                 * version of Windows that has been requested by the BIOS.
+                 */
+                if (interface_info->value > acpi_gbl_osi_data) {
+                        acpi_gbl_osi_data = interface_info->value;
+                }
+
+                return_value = ACPI_UINT32_MAX;
+        }
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+
+        /*
+         * Invoke an optional _OSI interface handler. The host OS may wish
+         * to do some interface-specific handling. For example, warn about
+         * certain interfaces or override the true/false support value.
+         */
+        interface_handler = acpi_gbl_interface_handler;
+        if (interface_handler) {
+                return_value =
+                    interface_handler(string_desc->string.pointer,
+                                      return_value);
+        }
+
+        ACPI_DEBUG_PRINT_RAW((ACPI_DB_INFO,
+                              "ACPI: BIOS _OSI(\"%s\") is %ssupported\n",
+                              string_desc->string.pointer,
+                              return_value == 0 ? "not " : ""));
+
+        /* Complete the return object */
+
+        return_desc->integer.value = return_value;
+        walk_state->return_desc = return_desc;
+        return_ACPI_STATUS(AE_OK);
+}
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 7f8cefcb2b32..c2da90f5fbe9 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -110,6 +110,15 @@ acpi_status __init acpi_initialize_subsystem(void)
                 return_ACPI_STATUS(status);
         }
 
+        /* Initialize the global OSI interfaces list with the static names */
+
+        status = acpi_ut_initialize_interfaces();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During OSI interfaces initialization"));
+                return_ACPI_STATUS(status);
+        }
+
         /* If configured, initialize the AML debugger */
 
         ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
@@ -506,6 +515,7 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
 
 ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
 #endif                          /*  ACPI_FUTURE_USAGE  */
+
 /*****************************************************************************
  *
  * FUNCTION:    acpi_purge_cached_objects
@@ -529,4 +539,117 @@ acpi_status acpi_purge_cached_objects(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects)
-#endif
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_install_interface
+ *
+ * PARAMETERS:  interface_name      - The interface to install
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install an _OSI interface to the global list
+ *
+ ****************************************************************************/
+acpi_status acpi_install_interface(acpi_string interface_name)
+{
+        acpi_status status;
+        struct acpi_interface_info *interface_info;
+
+        /* Parameter validation */
+
+        if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+                return (AE_BAD_PARAMETER);
+        }
+
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+
+        /* Check if the interface name is already in the global list */
+
+        interface_info = acpi_ut_get_interface(interface_name);
+        if (interface_info) {
+                /*
+                 * The interface already exists in the list. This is OK if the
+                 * interface has been marked invalid -- just clear the bit.
+                 */
+                if (interface_info->flags & ACPI_OSI_INVALID) {
+                        interface_info->flags &= ~ACPI_OSI_INVALID;
+                        status = AE_OK;
+                } else {
+                        status = AE_ALREADY_EXISTS;
+                }
+        } else {
+                /* New interface name, install into the global list */
+
+                status = acpi_ut_install_interface(interface_name);
+        }
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+        return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_interface)
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_remove_interface
+ *
+ * PARAMETERS:  interface_name      - The interface to remove
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Remove an _OSI interface from the global list
+ *
+ ****************************************************************************/
+acpi_status acpi_remove_interface(acpi_string interface_name)
+{
+        acpi_status status;
+
+        /* Parameter validation */
+
+        if (!interface_name || (ACPI_STRLEN(interface_name) == 0)) {
+                return (AE_BAD_PARAMETER);
+        }
+
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+
+        status = acpi_ut_remove_interface(interface_name);
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+        return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_interface)
+
+/*****************************************************************************
+ *
+ * FUNCTION:    acpi_install_interface_handler
+ *
+ * PARAMETERS:  Handler             - The _OSI interface handler to install
+ *                                    NULL means "remove existing handler"
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install a handler for the predefined _OSI ACPI method.
+ *              invoked during execution of the internal implementation of
+ *              _OSI. A NULL handler simply removes any existing handler.
+ *
+ ****************************************************************************/
+acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
+{
+        acpi_status status = AE_OK;
+
+        (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+
+        if (handler && acpi_gbl_interface_handler) {
+                status = AE_ALREADY_EXISTS;
+        } else {
+                acpi_gbl_interface_handler = handler;
+        }
+
+        acpi_os_release_mutex(acpi_gbl_osi_mutex);
+        return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
+#endif                          /* !ACPI_ASL_COMPILER */
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
new file mode 100644
index 000000000000..6f12e314fbae
--- /dev/null
+++ b/drivers/acpi/acpica/utxferror.c
@@ -0,0 +1,415 @@
+/*******************************************************************************
+ *
+ * Module Name: utxferror - Various error/warning output functions
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2010, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utxferror")
+
+/*
+ * This module is used for the in-kernel ACPICA as well as the ACPICA
+ * tools/applications.
+ *
+ * For the i_aSL compiler case, the output is redirected to stderr so that
+ * any of the various ACPI errors and warnings do not appear in the output
+ * files, for either the compiler or disassembler portions of the tool.
+ */
+#ifdef ACPI_ASL_COMPILER
+#include <stdio.h>
+extern FILE *acpi_gbl_output_file;
+
+#define ACPI_MSG_REDIRECT_BEGIN \
+        FILE                            *output_file = acpi_gbl_output_file; \
+        acpi_os_redirect_output (stderr);
+
+#define ACPI_MSG_REDIRECT_END \
+        acpi_os_redirect_output (output_file);
+
+#else
+/*
+ * non-i_aSL case - no redirection, nothing to do
+ */
+#define ACPI_MSG_REDIRECT_BEGIN
+#define ACPI_MSG_REDIRECT_END
+#endif
+/*
+ * Common message prefixes
+ */
+#define ACPI_MSG_ERROR          "ACPI Error: "
+#define ACPI_MSG_EXCEPTION      "ACPI Exception: "
+#define ACPI_MSG_WARNING        "ACPI Warning: "
+#define ACPI_MSG_INFO           "ACPI: "
+/*
+ * Common message suffix
+ */
+#define ACPI_MSG_SUFFIX \
+        acpi_os_printf (" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_error
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              Format              - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print "ACPI Error" message with module/line/version info
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_error(const char *module_name, u32 line_number, const char *format, ...)
+{
+        va_list arg_list;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_ERROR);
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        ACPI_MSG_SUFFIX;
+        va_end(arg_list);
+
+        ACPI_MSG_REDIRECT_END;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_error)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_exception
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              Status              - Status to be formatted
+ *              Format              - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print "ACPI Exception" message with module/line/version info
+ *              and decoded acpi_status.
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_exception(const char *module_name,
+               u32 line_number, acpi_status status, const char *format, ...)
+{
+        va_list arg_list;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_EXCEPTION "%s, ",
+                       acpi_format_exception(status));
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        ACPI_MSG_SUFFIX;
+        va_end(arg_list);
+
+        ACPI_MSG_REDIRECT_END;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_exception)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_warning
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              Format              - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print "ACPI Warning" message with module/line/version info
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_warning(const char *module_name, u32 line_number, const char *format, ...)
+{
+        va_list arg_list;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_WARNING);
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        ACPI_MSG_SUFFIX;
+        va_end(arg_list);
+
+        ACPI_MSG_REDIRECT_END;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_warning)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_info
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              Format              - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print generic "ACPI:" information message. There is no
+ *              module/line/version info in order to keep the message simple.
+ *
+ * TBD: module_name and line_number args are not needed, should be removed.
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_info(const char *module_name, u32 line_number, const char *format, ...)
+{
+        va_list arg_list;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_INFO);
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        acpi_os_printf("\n");
+        va_end(arg_list);
+
+        ACPI_MSG_REDIRECT_END;
+}
+
+ACPI_EXPORT_SYMBOL(acpi_info)
+
+/*
+ * The remainder of this module contains internal error functions that may
+ * be configured out.
+ */
+#if !defined (ACPI_NO_ERROR_MESSAGES) && !defined (ACPI_BIN_APP)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_predefined_warning
+ *
+ * PARAMETERS:  module_name     - Caller's module name (for error output)
+ *              line_number     - Caller's line number (for error output)
+ *              Pathname        - Full pathname to the node
+ *              node_flags      - From Namespace node for the method/object
+ *              Format          - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Warnings for the predefined validation module. Messages are
+ *              only emitted the first time a problem with a particular
+ *              method/object is detected. This prevents a flood of error
+ *              messages for methods that are repeatedly evaluated.
+ *
+ ******************************************************************************/
+void ACPI_INTERNAL_VAR_XFACE
+acpi_ut_predefined_warning(const char *module_name,
+                           u32 line_number,
+                           char *pathname,
+                           u8 node_flags, const char *format, ...)
+{
+        va_list arg_list;
+
+        /*
+         * Warning messages for this method/object will be disabled after the
+         * first time a validation fails or an object is successfully repaired.
+         */
+        if (node_flags & ANOBJ_EVALUATED) {
+                return;
+        }
+
+        acpi_os_printf(ACPI_MSG_WARNING "For %s: ", pathname);
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        ACPI_MSG_SUFFIX;
+        va_end(arg_list);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_predefined_info
+ *
+ * PARAMETERS:  module_name     - Caller's module name (for error output)
+ *              line_number     - Caller's line number (for error output)
+ *              Pathname        - Full pathname to the node
+ *              node_flags      - From Namespace node for the method/object
+ *              Format          - Printf format string + additional args
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Info messages for the predefined validation module. Messages
+ *              are only emitted the first time a problem with a particular
+ *              method/object is detected. This prevents a flood of
+ *              messages for methods that are repeatedly evaluated.
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE
+acpi_ut_predefined_info(const char *module_name,
+                        u32 line_number,
+                        char *pathname, u8 node_flags, const char *format, ...)
+{
+        va_list arg_list;
+
+        /*
+         * Warning messages for this method/object will be disabled after the
+         * first time a validation fails or an object is successfully repaired.
+         */
+        if (node_flags & ANOBJ_EVALUATED) {
+                return;
+        }
+
+        acpi_os_printf(ACPI_MSG_INFO "For %s: ", pathname);
+
+        va_start(arg_list, format);
+        acpi_os_vprintf(format, arg_list);
+        ACPI_MSG_SUFFIX;
+        va_end(arg_list);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_namespace_error
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              internal_name       - Name or path of the namespace node
+ *              lookup_status       - Exception code from NS lookup
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print error message with the full pathname for the NS node.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_namespace_error(const char *module_name,
+                        u32 line_number,
+                        const char *internal_name, acpi_status lookup_status)
+{
+        acpi_status status;
+        u32 bad_name;
+        char *name = NULL;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_ERROR);
+
+        if (lookup_status == AE_BAD_CHARACTER) {
+
+                /* There is a non-ascii character in the name */
+
+                ACPI_MOVE_32_TO_32(&bad_name,
+                                   ACPI_CAST_PTR(u32, internal_name));
+                acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
+        } else {
+                /* Convert path to external format */
+
+                status = acpi_ns_externalize_name(ACPI_UINT32_MAX,
+                                                  internal_name, NULL, &name);
+
+                /* Print target name */
+
+                if (ACPI_SUCCESS(status)) {
+                        acpi_os_printf("[%s]", name);
+                } else {
+                        acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
+                }
+
+                if (name) {
+                        ACPI_FREE(name);
+                }
+        }
+
+        acpi_os_printf(" Namespace lookup failure, %s",
+                       acpi_format_exception(lookup_status));
+
+        ACPI_MSG_SUFFIX;
+        ACPI_MSG_REDIRECT_END;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_method_error
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              Message             - Error message to use on failure
+ *              prefix_node         - Prefix relative to the path
+ *              Path                - Path to the node (optional)
+ *              method_status       - Execution status
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print error message with the full pathname for the method.
+ *
+ ******************************************************************************/
+
+void
+acpi_ut_method_error(const char *module_name,
+                     u32 line_number,
+                     const char *message,
+                     struct acpi_namespace_node *prefix_node,
+                     const char *path, acpi_status method_status)
+{
+        acpi_status status;
+        struct acpi_namespace_node *node = prefix_node;
+
+        ACPI_MSG_REDIRECT_BEGIN;
+        acpi_os_printf(ACPI_MSG_ERROR);
+
+        if (path) {
+                status =
+                    acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
+                                     &node);
+                if (ACPI_FAILURE(status)) {
+                        acpi_os_printf("[Could not get node by pathname]");
+                }
+        }
+
+        acpi_ns_print_node_pathname(node, message);
+        acpi_os_printf(", %s", acpi_format_exception(method_status));
+
+        ACPI_MSG_SUFFIX;
+        ACPI_MSG_REDIRECT_END;
+}
+
+#endif                          /* ACPI_NO_ERROR_MESSAGES */
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 65b25a303b86..d3bed219c442 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -96,7 +96,9 @@ static LIST_HEAD(resource_list_head);
 static DEFINE_SPINLOCK(acpi_res_lock);
 
 #define OSI_STRING_LENGTH_MAX 64        /* arbitrary */
-static char osi_additional_string[OSI_STRING_LENGTH_MAX];
+static char osi_setup_string[OSI_STRING_LENGTH_MAX];
+
+static void __init acpi_osi_setup_late(void);
 
 /*
  * The story of _OSI(Linux)
@@ -138,6 +140,20 @@ static struct osi_linux {
         unsigned int    known:1;
 } osi_linux = { 0, 0, 0, 0};
 
+static u32 acpi_osi_handler(acpi_string interface, u32 supported)
+{
+        if (!strcmp("Linux", interface)) {
+
+                printk(KERN_NOTICE FW_BUG PREFIX
+                        "BIOS _OSI(Linux) query %s%s\n",
+                        osi_linux.enable ? "honored" : "ignored",
+                        osi_linux.cmdline ? " via cmdline" :
+                        osi_linux.dmi ? " via DMI" : "");
+        }
+
+        return supported;
+}
+
 static void __init acpi_request_region (struct acpi_generic_address *addr,
         unsigned int length, char *desc)
 {
@@ -198,6 +214,8 @@ acpi_status acpi_os_initialize1(void)
         BUG_ON(!kacpid_wq);
         BUG_ON(!kacpi_notify_wq);
         BUG_ON(!kacpi_hotplug_wq);
+        acpi_install_interface_handler(acpi_osi_handler);
+        acpi_osi_setup_late();
         return AE_OK;
 }
 
@@ -547,9 +565,10 @@ acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width)
 
 acpi_status
 acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
-                               u32 *value, u32 width)
+                               u64 *value, u32 width)
 {
         int result, size;
+        u32 value32;
 
         if (!value)
                 return AE_BAD_PARAMETER;
@@ -570,7 +589,8 @@ acpi_os_read_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
 
         result = raw_pci_read(pci_id->segment, pci_id->bus,
                                 PCI_DEVFN(pci_id->device, pci_id->function),
-                                reg, size, value);
+                                reg, size, &value32);
+        *value = value32;
 
         return (result ? AE_ERROR : AE_OK);
 }
@@ -602,74 +622,6 @@ acpi_os_write_pci_configuration(struct acpi_pci_id * pci_id, u32 reg,
         return (result ? AE_ERROR : AE_OK);
 }
 
-/* TODO: Change code to take advantage of driver model more */
-static void acpi_os_derive_pci_id_2(acpi_handle rhandle,        /* upper bound  */
-                                    acpi_handle chandle,        /* current node */
-                                    struct acpi_pci_id **id,
-                                    int *is_bridge, u8 * bus_number)
-{
-        acpi_handle handle;
-        struct acpi_pci_id *pci_id = *id;
-        acpi_status status;
-        unsigned long long temp;
-        acpi_object_type type;
-
-        acpi_get_parent(chandle, &handle);
-        if (handle != rhandle) {
-                acpi_os_derive_pci_id_2(rhandle, handle, &pci_id, is_bridge,
-                                        bus_number);
-
-                status = acpi_get_type(handle, &type);
-                if ((ACPI_FAILURE(status)) || (type != ACPI_TYPE_DEVICE))
-                        return;
-
-                status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL,
-                                          &temp);
-                if (ACPI_SUCCESS(status)) {
-                        u32 val;
-                        pci_id->device = ACPI_HIWORD(ACPI_LODWORD(temp));
-                        pci_id->function = ACPI_LOWORD(ACPI_LODWORD(temp));
-
-                        if (*is_bridge)
-                                pci_id->bus = *bus_number;
-
-                        /* any nicer way to get bus number of bridge ? */
-                        status =
-                            acpi_os_read_pci_configuration(pci_id, 0x0e, &val,
-                                                           8);
-                        if (ACPI_SUCCESS(status)
-                            && ((val & 0x7f) == 1 || (val & 0x7f) == 2)) {
-                                status =
-                                    acpi_os_read_pci_configuration(pci_id, 0x18,
-                                                                   &val, 8);
-                                if (!ACPI_SUCCESS(status)) {
-                                        /* Certainly broken...  FIX ME */
-                                        return;
-                                }
-                                *is_bridge = 1;
-                                pci_id->bus = val;
-                                status =
-                                    acpi_os_read_pci_configuration(pci_id, 0x19,
-                                                                   &val, 8);
-                                if (ACPI_SUCCESS(status)) {
-                                        *bus_number = val;
-                                }
-                        } else
-                                *is_bridge = 0;
-                }
-        }
-}
-
-void acpi_os_derive_pci_id(acpi_handle rhandle, /* upper bound  */
-                           acpi_handle chandle, /* current node */
-                           struct acpi_pci_id **id)
-{
-        int is_bridge = 1;
-        u8 bus_number = (*id)->bus;
-
-        acpi_os_derive_pci_id_2(rhandle, chandle, id, &is_bridge, &bus_number);
-}
-
 static void acpi_os_execute_deferred(struct work_struct *work)
 {
         struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
@@ -977,6 +929,12 @@ static void __init set_osi_linux(unsigned int enable)
                 printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n",
                         enable ? "Add": "Delet");
         }
+
+        if (osi_linux.enable)
+                acpi_osi_setup("Linux");
+        else
+                acpi_osi_setup("!Linux");
+
         return;
 }
 
@@ -1011,21 +969,33 @@ void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d)
  * string starting with '!' disables that string
  * otherwise string is added to list, augmenting built-in strings
  */
-int __init acpi_osi_setup(char *str)
+static void __init acpi_osi_setup_late(void)
 {
-        if (str == NULL || *str == '\0') {
-                printk(KERN_INFO PREFIX "_OSI method disabled\n");
-                acpi_gbl_create_osi_method = FALSE;
-        } else if (!strcmp("!Linux", str)) {
+        char *str = osi_setup_string;
+
+        if (*str == '\0')
+                return;
+
+        if (!strcmp("!Linux", str)) {
                 acpi_cmdline_osi_linux(0);      /* !enable */
         } else if (*str == '!') {
-                if (acpi_osi_invalidate(++str) == AE_OK)
+                if (acpi_remove_interface(++str) == AE_OK)
                         printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str);
         } else if (!strcmp("Linux", str)) {
                 acpi_cmdline_osi_linux(1);      /* enable */
-        } else if (*osi_additional_string == '\0') {
-                strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX);
-                printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str);
+        } else {
+                if (acpi_install_interface(str) == AE_OK)
+                        printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str);
+        }
+}
+
+int __init acpi_osi_setup(char *str)
+{
+        if (str == NULL || *str == '\0') {
+                printk(KERN_INFO PREFIX "_OSI method disabled\n");
+                acpi_gbl_create_osi_method = FALSE;
+        } else {
+                strncpy(osi_setup_string, str, OSI_STRING_LENGTH_MAX);
         }
 
         return 1;
@@ -1282,38 +1252,6 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
         return (AE_OK);
 }
 
-/******************************************************************************
- *
- * FUNCTION:    acpi_os_validate_interface
- *
- * PARAMETERS:  interface           - Requested interface to be validated
- *
- * RETURN:      AE_OK if interface is supported, AE_SUPPORT otherwise
- *
- * DESCRIPTION: Match an interface string to the interfaces supported by the
- *              host. Strings originate from an AML call to the _OSI method.
- *
- *****************************************************************************/
-
-acpi_status
-acpi_os_validate_interface (char *interface)
-{
-        if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX))
-                return AE_OK;
-        if (!strcmp("Linux", interface)) {
-
-                printk(KERN_NOTICE PREFIX
-                        "BIOS _OSI(Linux) query %s%s\n",
-                        osi_linux.enable ? "honored" : "ignored",
-                        osi_linux.cmdline ? " via cmdline" :
-                        osi_linux.dmi ? " via DMI" : "");
-
-                if (osi_linux.enable)
-                        return AE_OK;
-        }
-        return AE_SUPPORT;
-}
-
 static inline int acpi_res_list_add(struct acpi_res_list *res)
 {
         struct acpi_res_list *res_list_elem;
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 29bf945143e8..43027432a055 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -223,25 +223,15 @@ acpi_os_write_memory(acpi_physical_address address, u32 value, u32 width);
  */
 acpi_status
 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
-                               u32 reg, u32 *value, u32 width);
+                               u32 reg, u64 *value, u32 width);
 
 acpi_status
 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
                                 u32 reg, u64 value, u32 width);
 
 /*
- * Interim function needed for PCI IRQ routing
- */
-void
-acpi_os_derive_pci_id(acpi_handle device,
-                      acpi_handle region, struct acpi_pci_id **pci_id);
-
-/*
  * Miscellaneous
  */
-acpi_status acpi_os_validate_interface(char *interface);
-acpi_status acpi_osi_invalidate(char* interface);
-
 acpi_status
 acpi_os_validate_address(u8 space_id, acpi_physical_address address,
                          acpi_size length, char *name);
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 984cdc62e30b..7db647c96283 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,7 +47,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20100702
+#define ACPI_CA_VERSION                 0x20101013
 
 #include "actypes.h"
 #include "actbl.h"
@@ -72,6 +72,7 @@ extern u8 acpi_gbl_truncate_io_addresses;
 
 extern u32 acpi_current_gpe_count;
 extern struct acpi_table_fadt acpi_gbl_FADT;
+extern u8 acpi_gbl_system_awake_and_running;
 
 extern u32 acpi_rsdt_forced;
 /*
@@ -105,6 +106,10 @@ const char *acpi_format_exception(acpi_status exception);
 
 acpi_status acpi_purge_cached_objects(void);
 
+acpi_status acpi_install_interface(acpi_string interface_name);
+
+acpi_status acpi_remove_interface(acpi_string interface_name);
+
 /*
  * ACPI Memory management
  */
@@ -263,6 +268,8 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 acpi_status acpi_install_exception_handler(acpi_exception_handler handler);
 #endif
 
+acpi_status acpi_install_interface_handler(acpi_interface_handler handler);
+
 /*
  * Event interfaces
  */
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 5db8f472fec9..2b134b691e34 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -115,7 +115,6 @@
  *
  * ACPI_SIZE        16/32/64-bit unsigned value
  * ACPI_NATIVE_INT  16/32/64-bit signed value
- *
  */
 
 /*******************************************************************************
@@ -132,6 +131,16 @@ typedef COMPILER_DEPENDENT_INT64 INT64;
 
 /*! [End] no source code translation !*/
 
+/*
+ * Value returned by acpi_os_get_thread_id. There is no standard "thread_id"
+ * across operating systems or even the various UNIX systems. Since ACPICA
+ * only needs the thread ID as a unique thread identifier, we use a u64
+ * as the only common data type - it will accommodate any type of pointer or
+ * any type of integer. It is up to the host-dependent OSL to cast the
+ * native thread ID type to a u64 (in acpi_os_get_thread_id).
+ */
+#define acpi_thread_id                  u64
+
 /*******************************************************************************
  *
  * Types specific to 64-bit targets
@@ -211,12 +220,6 @@ typedef u32 acpi_physical_address;
  *
  ******************************************************************************/
 
-/* Value returned by acpi_os_get_thread_id */
-
-#ifndef acpi_thread_id
-#define acpi_thread_id                  acpi_size
-#endif
-
 /* Flags for acpi_os_acquire_lock/acpi_os_release_lock */
 
 #ifndef acpi_cpu_flags
@@ -375,16 +378,6 @@ typedef void *acpi_handle;	/* Actually a ptr to a NS Node */
 typedef u8 acpi_owner_id;
 #define ACPI_OWNER_ID_MAX               0xFF
 
-struct uint64_struct {
-        u32 lo;
-        u32 hi;
-};
-
-union uint64_overlay {
-        u64 full;
-        struct uint64_struct part;
-};
-
 #define ACPI_INTEGER_BIT_SIZE           64
 #define ACPI_MAX_DECIMAL_DIGITS         20      /* 2^64 = 18,446,744,073,709,551,616 */
 
@@ -950,6 +943,9 @@ acpi_status(*acpi_walk_callback) (acpi_handle object,
                                   u32 nesting_level,
                                   void *context, void **return_value);
 
+typedef
+u32 (*acpi_interface_handler) (acpi_string interface_name, u32 supported);
+
 /* Interrupt handler return values */
 
 #define ACPI_INTERRUPT_NOT_HANDLED      0x00
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index c05aeba9e8f0..a3e334ab1119 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -193,6 +193,12 @@
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 #endif
 
+/* "inline" keywords - configurable since inline is not standardized */
+
+#ifndef ACPI_INLINE
+#define ACPI_INLINE
+#endif
+
 /*
  * Debugger threading model
  * Use single threaded if the entire subsystem is contained in an application
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 0cd53e3cd1a3..5dcb9537343c 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -44,6 +44,8 @@
 #ifndef __ACGCC_H__
 #define __ACGCC_H__
 
+#define ACPI_INLINE             __inline__
+
 /* Function name is used for debug output. Non-ANSI, compiler-dependent */
 
 #define ACPI_GET_FUNCTION_NAME          __func__
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 103f08aca764..572189e37133 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -75,7 +75,6 @@
 #define acpi_cache_t                        struct kmem_cache
 #define acpi_spinlock                       spinlock_t *
 #define acpi_cpu_flags                      unsigned long
-#define acpi_thread_id                      struct task_struct *
 
 #else /* !__KERNEL__ */
 
@@ -88,7 +87,7 @@
 /* Host-dependent types and defines for user-space ACPICA */
 
 #define ACPI_FLUSH_CPU_CACHE()
-#define acpi_thread_id                      pthread_t
+#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
 
 #if defined(__ia64__) || defined(__x86_64__)
 #define ACPI_MACHINE_WIDTH          64
@@ -113,12 +112,13 @@
 
 
 #ifdef __KERNEL__
+#include <acpi/actypes.h>
 /*
  * Overrides for in-kernel ACPICA
  */
 static inline acpi_thread_id acpi_os_get_thread_id(void)
 {
-        return current;
+        return (acpi_thread_id)(unsigned long)current;
 }
 
 /*
@@ -127,7 +127,6 @@ static inline acpi_thread_id acpi_os_get_thread_id(void)
  * However, boot has  (system_state != SYSTEM_RUNNING)
  * to quiet __might_sleep() in kmalloc() and resume does not.
  */
-#include <acpi/actypes.h>
 static inline void *acpi_os_allocate(acpi_size size)
 {
         return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);