diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1150444..99cf83f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -217,20 +217,47 @@
 	acpi.debug_level=	[HW,ACPI]
 			Format: <int>
 			Each bit of the <int> indicates an ACPI debug level,
-			1: enable, 0: disable. It is useful for boot time
-			debugging. After system has booted up, it can be set
-			via /sys/module/acpi/parameters/debug_level.
-			CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
-			Available bits (add the numbers together) to enable different
-			debug output levels of the ACPI subsystem:
-			0x01 error 0x02 warn 0x04 init 0x08 debug object
-			0x10 info 0x20 init names 0x40 parse 0x80 load
-			0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
-			0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
-			0x10000 resources 0x20000 user requests 0x40000 package.
-			The number can be in decimal or prefixed with 0x in hex.
-			Warning: Many of these options can produce a lot of
-			output and make your system unusable. Be very careful.
+			which corresponds to the level in an ACPI_DEBUG_PRINT
+			statement.  After system has booted up, this mask
+			can be set via /sys/module/acpi/parameters/debug_level.
+
+			CONFIG_ACPI_DEBUG must be enabled for this to produce
+			any output.  The number can be in decimal or prefixed
+			with 0x in hex.  Some of these options produce so much
+			output that the system is unusable.
+
+			The following global components are defined by the
+			ACPI CA:
+			       0x01 error
+			       0x02 warn
+			       0x04 init
+			       0x08 debug object
+			       0x10 info
+			       0x20 init names
+			       0x40 parse
+			       0x80 load
+			      0x100 dispatch
+			      0x200 execute
+			      0x400 names
+			      0x800 operation region
+			     0x1000 bfield
+			     0x2000 tables
+			     0x4000 values
+			     0x8000 objects
+			    0x10000 resources
+			    0x20000 user requests
+			    0x40000 package
+ 			The number can be in decimal or prefixed with 0x in hex.
+ 			Warning: Many of these options can produce a lot of
+ 			output and make your system unusable. Be very careful.
+
+ 	acpi.power_nocheck=	[HW,ACPI]
+ 			Format: 1/0 enable/disable the check of power state.
+ 			On some bogus BIOS the _PSC object/_STA object of
+ 			power resource can't return the correct device power
+ 			state. In such case it is unneccessary to check its
+ 			power state again in power transition.
+ 			1 : disable the power state check
 
 	acpi_pm_good	[X86-32,X86-64]
 			Override the pmtimer bug detection: force the kernel
diff --git a/Documentation/laptops/acer-wmi.txt b/Documentation/laptops/acer-wmi.txt
index 69b5dd4..2b3a6b5 100644
--- a/Documentation/laptops/acer-wmi.txt
+++ b/Documentation/laptops/acer-wmi.txt
@@ -1,7 +1,7 @@
 Acer Laptop WMI Extras Driver
 http://code.google.com/p/aceracpi
-Version 0.1
-9th February 2008
+Version 0.2
+18th August 2008
 
 Copyright 2007-2008 Carlos Corbacho <carlos@strangeworlds.co.uk>
 
@@ -87,17 +87,7 @@
 ever wish to remove the card, or swap it out at some point, please get in touch
 with me, as we may well be able to gain some data on wireless card detection.
 
-To read the status of the wireless radio (0=off, 1=on):
-cat /sys/devices/platform/acer-wmi/wireless
-
-To enable the wireless radio:
-echo 1 > /sys/devices/platform/acer-wmi/wireless
-
-To disable the wireless radio:
-echo 0 > /sys/devices/platform/acer-wmi/wireless
-
-To set the state of the wireless radio when loading acer-wmi, pass:
-wireless=X (where X is 0 or 1)
+The wireless radio is exposed through rfkill.
 
 Bluetooth
 *********
@@ -117,17 +107,7 @@
 module off the internet that is compatible with your laptop and fit it, then
 it will work just fine with acer-wmi.
 
-To read the status of the bluetooth module (0=off, 1=on):
-cat /sys/devices/platform/acer-wmi/wireless
-
-To enable the bluetooth module:
-echo 1 > /sys/devices/platform/acer-wmi/bluetooth
-
-To disable the bluetooth module:
-echo 0 > /sys/devices/platform/acer-wmi/bluetooth
-
-To set the state of the bluetooth module when loading acer-wmi, pass:
-bluetooth=X (where X is 0 or 1)
+Bluetooth is exposed through rfkill.
 
 3G
 **
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 84bb395..4e0c6ab 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -45,7 +45,6 @@
 #endif
 
 #define PFX "powernow-k8: "
-#define BFX PFX "BIOS error: "
 #define VERSION "version 2.20.00"
 #include "powernow-k8.h"
 
@@ -536,35 +535,40 @@
 
 	for (j = 0; j < data->numps; j++) {
 		if (pst[j].vid > LEAST_VID) {
-			printk(KERN_ERR PFX "vid %d invalid : 0x%x\n", j, pst[j].vid);
+			printk(KERN_ERR FW_BUG PFX "vid %d invalid : 0x%x\n",
+			       j, pst[j].vid);
 			return -EINVAL;
 		}
 		if (pst[j].vid < data->rvo) {	/* vid + rvo >= 0 */
-			printk(KERN_ERR BFX "0 vid exceeded with pstate %d\n", j);
+			printk(KERN_ERR FW_BUG PFX "0 vid exceeded with pstate"
+			       " %d\n", j);
 			return -ENODEV;
 		}
 		if (pst[j].vid < maxvid + data->rvo) {	/* vid + rvo >= maxvid */
-			printk(KERN_ERR BFX "maxvid exceeded with pstate %d\n", j);
+			printk(KERN_ERR FW_BUG PFX "maxvid exceeded with pstate"
+			       " %d\n", j);
 			return -ENODEV;
 		}
 		if (pst[j].fid > MAX_FID) {
-			printk(KERN_ERR BFX "maxfid exceeded with pstate %d\n", j);
+			printk(KERN_ERR FW_BUG PFX "maxfid exceeded with pstate"
+			       " %d\n", j);
 			return -ENODEV;
 		}
 		if (j && (pst[j].fid < HI_FID_TABLE_BOTTOM)) {
 			/* Only first fid is allowed to be in "low" range */
-			printk(KERN_ERR BFX "two low fids - %d : 0x%x\n", j, pst[j].fid);
+			printk(KERN_ERR FW_BUG PFX "two low fids - %d : "
+			       "0x%x\n", j, pst[j].fid);
 			return -EINVAL;
 		}
 		if (pst[j].fid < lastfid)
 			lastfid = pst[j].fid;
 	}
 	if (lastfid & 1) {
-		printk(KERN_ERR BFX "lastfid invalid\n");
+		printk(KERN_ERR FW_BUG PFX "lastfid invalid\n");
 		return -EINVAL;
 	}
 	if (lastfid > LO_FID_TABLE_TOP)
-		printk(KERN_INFO BFX  "first fid not from lo freq table\n");
+		printk(KERN_INFO FW_BUG PFX  "first fid not from lo freq table\n");
 
 	return 0;
 }
@@ -672,13 +676,13 @@
 
 		dprintk("table vers: 0x%x\n", psb->tableversion);
 		if (psb->tableversion != PSB_VERSION_1_4) {
-			printk(KERN_ERR BFX "PSB table is not v1.4\n");
+			printk(KERN_ERR FW_BUG PFX "PSB table is not v1.4\n");
 			return -ENODEV;
 		}
 
 		dprintk("flags: 0x%x\n", psb->flags1);
 		if (psb->flags1) {
-			printk(KERN_ERR BFX "unknown flags\n");
+			printk(KERN_ERR FW_BUG PFX "unknown flags\n");
 			return -ENODEV;
 		}
 
@@ -705,7 +709,7 @@
 			}
 		}
 		if (cpst != 1) {
-			printk(KERN_ERR BFX "numpst must be 1\n");
+			printk(KERN_ERR FW_BUG PFX "numpst must be 1\n");
 			return -ENODEV;
 		}
 
@@ -1130,17 +1134,19 @@
 			       "ACPI Processor module before starting this "
 			       "driver.\n");
 #else
-			printk(KERN_ERR PFX "Your BIOS does not provide ACPI "
-			       "_PSS objects in a way that Linux understands. "
-			       "Please report this to the Linux ACPI maintainers"
-			       " and complain to your BIOS vendor.\n");
+			printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
+			       " ACPI _PSS objects in a way that Linux "
+			       "understands. Please report this to the Linux "
+			       "ACPI maintainers and complain to your BIOS "
+			       "vendor.\n");
 #endif
 			kfree(data);
 			return -ENODEV;
 		}
 		if (pol->cpu != 0) {
-			printk(KERN_ERR PFX "No ACPI _PSS objects for CPU other than "
-			       "CPU0. Complain to your BIOS vendor.\n");
+			printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
+			       "CPU other than CPU0. Complain to your BIOS "
+			       "vendor.\n");
 			kfree(data);
 			return -ENODEV;
 		}
@@ -1193,7 +1199,7 @@
 
 	/* min/max the cpu is capable of */
 	if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) {
-		printk(KERN_ERR PFX "invalid powernow_table\n");
+		printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
 		powernow_k8_cpu_exit_acpi(data);
 		kfree(data->powernow_table);
 		kfree(data);
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 5f1127a..bbad9b6 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -454,8 +454,8 @@
 		/* call add_memory func */
 		result = acpi_memory_enable_device(mem_device);
 		if (result)
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				"Error in acpi_memory_enable_device\n"));
+			printk(KERN_ERR PREFIX
+				"Error in acpi_memory_enable_device\n");
 	}
 	return result;
 }
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index d3d0886..3f7adf6 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -42,7 +42,7 @@
 
 #define ASUS_ACPI_VERSION "0.30"
 
-#define PROC_ASUS       "asus"	//the directory
+#define PROC_ASUS       "asus"	/* The directory */
 #define PROC_MLED       "mled"
 #define PROC_WLED       "wled"
 #define PROC_TLED       "tled"
@@ -66,10 +66,10 @@
 /*
  * Flags for hotk status
  */
-#define MLED_ON     0x01	//mail LED
-#define WLED_ON     0x02	//wireless LED
-#define TLED_ON     0x04	//touchpad LED
-#define BT_ON       0x08	//internal Bluetooth
+#define MLED_ON     0x01	/* Mail LED */
+#define WLED_ON     0x02	/* Wireless LED */
+#define TLED_ON     0x04	/* Touchpad LED */
+#define BT_ON       0x08	/* Internal Bluetooth */
 
 MODULE_AUTHOR("Julien Lerouge, Karol Kozimor");
 MODULE_DESCRIPTION(ACPI_HOTK_NAME);
@@ -82,28 +82,28 @@
 module_param(asus_gid, uint, 0);
 MODULE_PARM_DESC(asus_gid, "GID for entries in /proc/acpi/asus");
 
-/* For each model, all features implemented, 
+/* For each model, all features implemented,
  * those marked with R are relative to HOTK, A for absolute */
 struct model_data {
-	char *name;		//name of the laptop________________A
-	char *mt_mled;		//method to handle mled_____________R
-	char *mled_status;	//node to handle mled reading_______A
-	char *mt_wled;		//method to handle wled_____________R
-	char *wled_status;	//node to handle wled reading_______A
-	char *mt_tled;		//method to handle tled_____________R
-	char *tled_status;	//node to handle tled reading_______A
-	char *mt_ledd;		//method to handle LED display______R
-	char *mt_bt_switch;	//method to switch Bluetooth on/off_R
-	char *bt_status;	//no model currently supports this__?
-	char *mt_lcd_switch;	//method to turn LCD on/off_________A
-	char *lcd_status;	//node to read LCD panel state______A
-	char *brightness_up;	//method to set brightness up_______A
-	char *brightness_down;	//guess what ?______________________A
-	char *brightness_set;	//method to set absolute brightness_R
-	char *brightness_get;	//method to get absolute brightness_R
-	char *brightness_status;	//node to get brightness____________A
-	char *display_set;	//method to set video output________R
-	char *display_get;	//method to get video output________R
+	char *name;		/* name of the laptop________________A */
+	char *mt_mled;		/* method to handle mled_____________R */
+	char *mled_status;	/* node to handle mled reading_______A */
+	char *mt_wled;		/* method to handle wled_____________R */
+	char *wled_status;	/* node to handle wled reading_______A */
+	char *mt_tled;		/* method to handle tled_____________R */
+	char *tled_status;	/* node to handle tled reading_______A */
+	char *mt_ledd;		/* method to handle LED display______R */
+	char *mt_bt_switch;	/* method to switch Bluetooth on/off_R */
+	char *bt_status;	/* no model currently supports this__? */
+	char *mt_lcd_switch;	/* method to turn LCD on/off_________A */
+	char *lcd_status;	/* node to read LCD panel state______A */
+	char *brightness_up;	/* method to set brightness up_______A */
+	char *brightness_down;	/* method to set brightness down ____A */
+	char *brightness_set;	/* method to set absolute brightness_R */
+	char *brightness_get;	/* method to get absolute brightness_R */
+	char *brightness_status;/* node to get brightness____________A */
+	char *display_set;	/* method to set video output________R */
+	char *display_get;	/* method to get video output________R */
 };
 
 /*
@@ -111,41 +111,41 @@
  * about the hotk device
  */
 struct asus_hotk {
-	struct acpi_device *device;	//the device we are in
-	acpi_handle handle;	//the handle of the hotk device
-	char status;		//status of the hotk, for LEDs, ...
-	u32 ledd_status;	//status of the LED display
-	struct model_data *methods;	//methods available on the laptop
-	u8 brightness;		//brightness level
+	struct acpi_device *device;	/* the device we are in */
+	acpi_handle handle;		/* the handle of the hotk device */
+	char status;			/* status of the hotk, for LEDs */
+	u32 ledd_status;		/* status of the LED display */
+	struct model_data *methods;	/* methods available on the laptop */
+	u8 brightness;			/* brightness level */
 	enum {
-		A1x = 0,	//A1340D, A1300F
-		A2x,		//A2500H
-		A4G,		//A4700G
-		D1x,		//D1
-		L2D,		//L2000D
-		L3C,		//L3800C
-		L3D,		//L3400D
-		L3H,		//L3H, L2000E, L5D
-		L4R,		//L4500R
-		L5x,		//L5800C 
-		L8L,		//L8400L
-		M1A,		//M1300A
-		M2E,		//M2400E, L4400L
-		M6N,		//M6800N, W3400N
-		M6R,		//M6700R, A3000G
-		P30,		//Samsung P30
-		S1x,		//S1300A, but also L1400B and M2400A (L84F)
-		S2x,		//S200 (J1 reported), Victor MP-XP7210
-		W1N,		//W1000N
-		W5A,		//W5A
-		W3V,            //W3030V
-		xxN,		//M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
-		A4S,            //Z81sp
-		//(Centrino)
-		F3Sa,
+		A1x = 0,	/* A1340D, A1300F */
+		A2x,		/* A2500H */
+		A4G,		/* A4700G */
+		D1x,		/* D1 */
+		L2D,		/* L2000D */
+		L3C,		/* L3800C */
+		L3D,		/* L3400D */
+		L3H,		/* L3H, L2000E, L5D */
+		L4R,		/* L4500R */
+		L5x,		/* L5800C */
+		L8L,		/* L8400L */
+		M1A,		/* M1300A */
+		M2E,		/* M2400E, L4400L */
+		M6N,		/* M6800N, W3400N */
+		M6R,		/* M6700R, A3000G */
+		P30,		/* Samsung P30 */
+		S1x,		/* S1300A, but also L1400B and M2400A (L84F) */
+		S2x,		/* S200 (J1 reported), Victor MP-XP7210 */
+		W1N,		/* W1000N */
+		W5A,		/* W5A */
+		W3V,            /* W3030V */
+		xxN,		/* M2400N, M3700N, M5200N, M6800N,
+							 S1300N, S5200N*/
+		A4S,            /* Z81sp */
+		F3Sa,		/* (Centrino) */
 		END_MODEL
-	} model;		//Models currently supported
-	u16 event_count[128];	//count for each event TODO make this better
+	} model;		/* Models currently supported */
+	u16 event_count[128];	/* Count for each event TODO make this better */
 };
 
 /* Here we go */
@@ -459,18 +459,18 @@
 		},
 };
 
-/* 
+/*
  * This function evaluates an ACPI method, given an int as parameter, the
  * method is searched within the scope of the handle, can be NULL. The output
  * of the method is written is output, which can also be NULL
  *
- * returns 1 if write is successful, 0 else. 
+ * returns 1 if write is successful, 0 else.
  */
 static int write_acpi_int(acpi_handle handle, const char *method, int val,
 			  struct acpi_buffer *output)
 {
-	struct acpi_object_list params;	//list of input parameters (an int here)
-	union acpi_object in_obj;	//the only param we use
+	struct acpi_object_list params;	/* list of input parameters (int) */
+	union acpi_object in_obj;	/* the only param we use */
 	acpi_status status;
 
 	params.count = 1;
@@ -507,18 +507,18 @@
 {
 	int len = 0;
 	int temp;
-	char buf[16];		//enough for all info
+	char buf[16];		/* enough for all info */
 	/*
-	 * We use the easy way, we don't care of off and count, so we don't set eof
-	 * to 1
+	 * We use the easy way, we don't care of off and count,
+	 * so we don't set eof to 1
 	 */
 
 	len += sprintf(page, ACPI_HOTK_NAME " " ASUS_ACPI_VERSION "\n");
 	len += sprintf(page + len, "Model reference    : %s\n",
 		       hotk->methods->name);
-	/* 
-	 * The SFUN method probably allows the original driver to get the list 
-	 * of features supported by a given model. For now, 0x0100 or 0x0800 
+	/*
+	 * The SFUN method probably allows the original driver to get the list
+	 * of features supported by a given model. For now, 0x0100 or 0x0800
 	 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
 	 * The significance of others is yet to be found.
 	 */
@@ -528,7 +528,7 @@
 	/*
 	 * Another value for userspace: the ASYM method returns 0x02 for
 	 * battery low and 0x04 for battery critical, its readings tend to be
-	 * more accurate than those provided by _BST. 
+	 * more accurate than those provided by _BST.
 	 * Note: since not all the laptops provide this method, errors are
 	 * silently ignored.
 	 */
@@ -579,7 +579,7 @@
 	return (hotk->status & ledmask) ? 1 : 0;
 }
 
-static int parse_arg(const char __user * buf, unsigned long count, int *val)
+static int parse_arg(const char __user *buf, unsigned long count, int *val)
 {
 	char s[32];
 	if (!count)
@@ -596,7 +596,7 @@
 
 /* FIXME: kill extraneous args so it can be called independently */
 static int
-write_led(const char __user * buffer, unsigned long count,
+write_led(const char __user *buffer, unsigned long count,
 	  char *ledname, int ledmask, int invert)
 {
 	int rv, value;
@@ -631,7 +631,7 @@
 }
 
 static int
-proc_write_mled(struct file *file, const char __user * buffer,
+proc_write_mled(struct file *file, const char __user *buffer,
 		unsigned long count, void *data)
 {
 	return write_led(buffer, count, hotk->methods->mt_mled, MLED_ON, 1);
@@ -648,7 +648,7 @@
 }
 
 static int
-proc_write_ledd(struct file *file, const char __user * buffer,
+proc_write_ledd(struct file *file, const char __user *buffer,
 		unsigned long count, void *data)
 {
 	int rv, value;
@@ -677,7 +677,7 @@
 }
 
 static int
-proc_write_wled(struct file *file, const char __user * buffer,
+proc_write_wled(struct file *file, const char __user *buffer,
 		unsigned long count, void *data)
 {
 	return write_led(buffer, count, hotk->methods->mt_wled, WLED_ON, 0);
@@ -694,10 +694,10 @@
 }
 
 static int
-proc_write_bluetooth(struct file *file, const char __user * buffer,
+proc_write_bluetooth(struct file *file, const char __user *buffer,
 		     unsigned long count, void *data)
 {
-	/* Note: mt_bt_switch controls both internal Bluetooth adapter's 
+	/* Note: mt_bt_switch controls both internal Bluetooth adapter's
 	   presence and its LED */
 	return write_led(buffer, count, hotk->methods->mt_bt_switch, BT_ON, 0);
 }
@@ -714,7 +714,7 @@
 }
 
 static int
-proc_write_tled(struct file *file, const char __user * buffer,
+proc_write_tled(struct file *file, const char __user *buffer,
 		unsigned long count, void *data)
 {
 	return write_led(buffer, count, hotk->methods->mt_tled, TLED_ON, 0);
@@ -734,7 +734,7 @@
 
 		input.count = 2;
 		input.pointer = mt_params;
-		/* Note: the following values are partly guessed up, but 
+		/* Note: the following values are partly guessed up, but
 		   otherwise they seem to work */
 		mt_params[0].type = ACPI_TYPE_INTEGER;
 		mt_params[0].integer.value = 0x02;
@@ -796,12 +796,13 @@
 			    acpi_evaluate_object(NULL,
 						 hotk->methods->mt_lcd_switch,
 						 NULL, NULL);
-		} else {	/* L3H and the like have to be handled differently */
+		} else {
+			/* L3H and the like must be handled differently */
 			if (!write_acpi_int
 			    (hotk->handle, hotk->methods->mt_lcd_switch, 0x07,
 			     NULL))
 				status = AE_ERROR;
-			/* L3H's AML executes EHK (0x07) upon Fn+F7 keypress, 
+			/* L3H's AML executes EHK (0x07) upon Fn+F7 keypress,
 			   the exact behaviour is simulated here */
 		}
 		if (ACPI_FAILURE(status))
@@ -819,7 +820,7 @@
 }
 
 static int
-proc_write_lcd(struct file *file, const char __user * buffer,
+proc_write_lcd(struct file *file, const char __user *buffer,
 	       unsigned long count, void *data)
 {
 	int rv, value;
@@ -897,7 +898,7 @@
 }
 
 static int
-proc_write_brn(struct file *file, const char __user * buffer,
+proc_write_brn(struct file *file, const char __user *buffer,
 	       unsigned long count, void *data)
 {
 	int rv, value;
@@ -921,7 +922,7 @@
 }
 
 /*
- * Now, *this* one could be more user-friendly, but so far, no-one has 
+ * Now, *this* one could be more user-friendly, but so far, no-one has
  * complained. The significance of bits is the same as in proc_write_disp()
  */
 static int
@@ -933,18 +934,18 @@
 	if (!read_acpi_int(hotk->handle, hotk->methods->display_get, &value))
 		printk(KERN_WARNING
 		       "Asus ACPI: Error reading display status\n");
-	value &= 0x07;		/* needed for some models, shouldn't hurt others */
+	value &= 0x07;	/* needed for some models, shouldn't hurt others */
 	return sprintf(page, "%d\n", value);
 }
 
 /*
- * Experimental support for display switching. As of now: 1 should activate 
- * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination 
- * (bitwise) of these will suffice. I never actually tested 3 displays hooked up 
- * simultaneously, so be warned. See the acpi4asus README for more info.
+ * Experimental support for display switching. As of now: 1 should activate
+ * the LCD output, 2 should do for CRT, and 4 for TV-Out. Any combination
+ * (bitwise) of these will suffice. I never actually tested 3 displays hooked
+ * up simultaneously, so be warned. See the acpi4asus README for more info.
  */
 static int
-proc_write_disp(struct file *file, const char __user * buffer,
+proc_write_disp(struct file *file, const char __user *buffer,
 		unsigned long count, void *data)
 {
 	int rv, value;
@@ -957,12 +958,12 @@
 
 typedef int (proc_readfunc) (char *page, char **start, off_t off, int count,
 			     int *eof, void *data);
-typedef int (proc_writefunc) (struct file * file, const char __user * buffer,
+typedef int (proc_writefunc) (struct file *file, const char __user *buffer,
 			      unsigned long count, void *data);
 
 static int
-asus_proc_add(char *name, proc_writefunc * writefunc,
-		     proc_readfunc * readfunc, mode_t mode,
+asus_proc_add(char *name, proc_writefunc *writefunc,
+		     proc_readfunc *readfunc, mode_t mode,
 		     struct acpi_device *device)
 {
 	struct proc_dir_entry *proc =
@@ -1040,9 +1041,9 @@
 			      &proc_read_bluetooth, mode, device);
 	}
 
-	/* 
-	 * We need both read node and write method as LCD switch is also accessible
-	 * from keyboard 
+	/*
+	 * We need both read node and write method as LCD switch is also
+	 * accessible from the keyboard
 	 */
 	if (hotk->methods->mt_lcd_switch && hotk->methods->lcd_status) {
 		asus_proc_add(PROC_LCD, &proc_write_lcd, &proc_read_lcd, mode,
@@ -1096,11 +1097,10 @@
 	if (!hotk)
 		return;
 
-	if ((event & ~((u32) BR_UP)) < 16) {
+	if ((event & ~((u32) BR_UP)) < 16)
 		hotk->brightness = (event & ~((u32) BR_UP));
-	} else if ((event & ~((u32) BR_DOWN)) < 16) {
+	else if ((event & ~((u32) BR_DOWN)) < 16)
 		hotk->brightness = (event & ~((u32) BR_DOWN));
-	}
 
 	acpi_bus_generate_proc_event(hotk->device, event,
 				hotk->event_count[event % 128]++);
@@ -1186,8 +1186,8 @@
 	acpi_status status;
 
 	/*
-	 * Get DSDT headers early enough to allow for differentiating between 
-	 * models, but late enough to allow acpi_bus_register_driver() to fail 
+	 * Get DSDT headers early enough to allow for differentiating between
+	 * models, but late enough to allow acpi_bus_register_driver() to fail
 	 * before doing anything ACPI-specific. Should we encounter a machine,
 	 * which needs special handling (i.e. its hotkey device has a different
 	 * HID), this bit will be moved. A global variable asus_info contains
@@ -1212,8 +1212,8 @@
 
 	/*
 	 * Try to match the object returned by INIT to the specific model.
-	 * Handle every possible object (or the lack of thereof) the DSDT 
-	 * writers might throw at us. When in trouble, we pass NULL to 
+	 * Handle every possible object (or the lack of thereof) the DSDT
+	 * writers might throw at us. When in trouble, we pass NULL to
 	 * asus_model_match() and try something completely different.
 	 */
 	if (buffer.pointer) {
@@ -1254,7 +1254,7 @@
 	/* Sort of per-model blacklist */
 	if (strncmp(string, "L2B", 3) == 0)
 		hotk->methods->lcd_status = NULL;
-	/* L2B is similar enough to L3C to use its settings, with this only 
+	/* L2B is similar enough to L3C to use its settings, with this only
 	   exception */
 	else if (strncmp(string, "A3G", 3) == 0)
 		hotk->methods->lcd_status = "\\BLFG";
@@ -1366,10 +1366,9 @@
 	/* LED display is off by default */
 	hotk->ledd_status = 0xFFF;
 
-      end:
-	if (result) {
+end:
+	if (result)
 		kfree(hotk);
-	}
 
 	return result;
 }
@@ -1394,8 +1393,8 @@
 }
 
 static struct backlight_ops asus_backlight_data = {
-        .get_brightness = read_brightness,
-        .update_status  = set_brightness_status,
+	.get_brightness = read_brightness,
+	.update_status  = set_brightness_status,
 };
 
 static void asus_acpi_exit(void)
@@ -1442,15 +1441,15 @@
 		return -ENODEV;
 	}
 
-	asus_backlight_device = backlight_device_register("asus",NULL,NULL,
+	asus_backlight_device = backlight_device_register("asus", NULL, NULL,
 							  &asus_backlight_data);
-        if (IS_ERR(asus_backlight_device)) {
+	if (IS_ERR(asus_backlight_device)) {
 		printk(KERN_ERR "Could not register asus backlight device\n");
 		asus_backlight_device = NULL;
 		asus_acpi_exit();
 		return -ENODEV;
 	}
-        asus_backlight_device->props.max_brightness = 15;
+	asus_backlight_device->props.max_brightness = 15;
 
 	return 0;
 }
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index ccae305..e9b116d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -48,6 +48,23 @@
 
 #define STRUCT_TO_INT(s)	(*((int*)&s))
 
+static int set_power_nocheck(const struct dmi_system_id *id)
+{
+	printk(KERN_NOTICE PREFIX "%s detected - "
+		"disable power check in power transistion\n", id->ident);
+	acpi_power_nocheck = 1;
+	return 0;
+}
+static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = {
+	{
+	set_power_nocheck, "HP Pavilion 05", {
+	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+	DMI_MATCH(DMI_SYS_VENDOR, "HP Pavilion 05"),
+	DMI_MATCH(DMI_PRODUCT_VERSION, "2001211RE101GLEND") }, NULL},
+	{},
+};
+
+
 /* --------------------------------------------------------------------------
                                 Device Management
    -------------------------------------------------------------------------- */
@@ -95,21 +112,21 @@
 	}
 
 	/*
-	 * Otherwise we assume the status of our parent (unless we don't
-	 * have one, in which case status is implied).
+	 * According to ACPI spec some device can be present and functional
+	 * even if the parent is not present but functional.
+	 * In such conditions the child device should not inherit the status
+	 * from the parent.
 	 */
-	else if (device->parent)
-		device->status = device->parent->status;
 	else
 		STRUCT_TO_INT(device->status) =
 		    ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
 		    ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
 
 	if (device->status.functional && !device->status.present) {
-		printk(KERN_WARNING PREFIX "Device [%s] status [%08x]: "
-		       "functional but not present; setting present\n",
-		       device->pnp.bus_id, (u32) STRUCT_TO_INT(device->status));
-		device->status.present = 1;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: "
+		       "functional but not present;\n",
+			device->pnp.bus_id,
+			(u32) STRUCT_TO_INT(device->status)));
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n",
@@ -223,7 +240,19 @@
 	/*
 	 * Get device's current power state
 	 */
-	acpi_bus_get_power(device->handle, &device->power.state);
+	if (!acpi_power_nocheck) {
+		/*
+		 * Maybe the incorrect power state is returned on the bogus
+		 * bios, which is different with the real power state.
+		 * For example: the bios returns D0 state and the real power
+		 * state is D3. OS expects to set the device to D0 state. In
+		 * such case if OS uses the power state returned by the BIOS,
+		 * the device can't be transisted to the correct power state.
+		 * So if the acpi_power_nocheck is set, it is unnecessary to
+		 * get the power state by calling acpi_bus_get_power.
+		 */
+		acpi_bus_get_power(device->handle, &device->power.state);
+	}
 	if ((state == device->power.state) && !device->flags.force_power_state) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
 				  state));
@@ -818,7 +847,11 @@
 		}
 	} else
 		disable_acpi();
-
+	/*
+	 * If the laptop falls into the DMI check table, the power state check
+	 * will be disabled in the course of device power transistion.
+	 */
+	dmi_check_system(power_nocheck_dmi_table);
 	return result;
 }
 
diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c
index f9db4f4..4441e84 100644
--- a/drivers/acpi/cm_sbs.c
+++ b/drivers/acpi/cm_sbs.c
@@ -52,8 +52,8 @@
 	if (acpi_ac_dir) {
 		lock_ac_dir_cnt++;
 	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Cannot create %s\n", ACPI_AC_CLASS));
+		printk(KERN_ERR PREFIX
+				  "Cannot create %s\n", ACPI_AC_CLASS);
 	}
 	mutex_unlock(&cm_sbs_mutex);
 	return acpi_ac_dir;
@@ -83,8 +83,8 @@
 	if (acpi_battery_dir) {
 		lock_battery_dir_cnt++;
 	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Cannot create %s\n", ACPI_BATTERY_CLASS));
+		printk(KERN_ERR PREFIX
+				  "Cannot create %s\n", ACPI_BATTERY_CLASS);
 	}
 	mutex_unlock(&cm_sbs_mutex);
 	return acpi_battery_dir;
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index 6df564f..abf36b4 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -47,8 +47,6 @@
 };
 
 static const struct acpi_dlevel acpi_debug_levels[] = {
-	ACPI_DEBUG_INIT(ACPI_LV_ERROR),
-	ACPI_DEBUG_INIT(ACPI_LV_WARN),
 	ACPI_DEBUG_INIT(ACPI_LV_INIT),
 	ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
 	ACPI_DEBUG_INIT(ACPI_LV_INFO),
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 4613b9c..279a5a6 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -103,6 +103,9 @@
 						    NULL);
 		acpi_ex_enter_interpreter();
 	}
+
+	acpi_ds_clear_implicit_return(walk_state);
+
 #ifdef ACPI_DISASSEMBLER
 	if (ACPI_FAILURE(status)) {
 
diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c
index 13c43ea..d03f81b 100644
--- a/drivers/acpi/dispatcher/dsmthdat.c
+++ b/drivers/acpi/dispatcher/dsmthdat.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acdispat.h>
-#include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acinterp.h>
 
@@ -52,11 +51,11 @@
 
 /* Local prototypes */
 static void
-acpi_ds_method_data_delete_value(u16 opcode,
+acpi_ds_method_data_delete_value(u8 type,
 				 u32 index, struct acpi_walk_state *walk_state);
 
 static acpi_status
-acpi_ds_method_data_set_value(u16 opcode,
+acpi_ds_method_data_set_value(u8 type,
 			      u32 index,
 			      union acpi_operand_object *object,
 			      struct acpi_walk_state *walk_state);
@@ -216,7 +215,7 @@
 		 * Store the argument in the method/walk descriptor.
 		 * Do not copy the arg in order to implement call by reference
 		 */
-		status = acpi_ds_method_data_set_value(AML_ARG_OP, index,
+		status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
 						       params[index],
 						       walk_state);
 		if (ACPI_FAILURE(status)) {
@@ -234,7 +233,8 @@
  *
  * FUNCTION:    acpi_ds_method_data_get_node
  *
- * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  Type                - Either ACPI_REFCLASS_LOCAL or
+ *                                    ACPI_REFCLASS_ARG
  *              Index               - Which Local or Arg whose type to get
  *              walk_state          - Current walk state object
  *              Node                - Where the node is returned.
@@ -246,7 +246,7 @@
  ******************************************************************************/
 
 acpi_status
-acpi_ds_method_data_get_node(u16 opcode,
+acpi_ds_method_data_get_node(u8 type,
 			     u32 index,
 			     struct acpi_walk_state *walk_state,
 			     struct acpi_namespace_node **node)
@@ -256,8 +256,8 @@
 	/*
 	 * Method Locals and Arguments are supported
 	 */
-	switch (opcode) {
-	case AML_LOCAL_OP:
+	switch (type) {
+	case ACPI_REFCLASS_LOCAL:
 
 		if (index > ACPI_METHOD_MAX_LOCAL) {
 			ACPI_ERROR((AE_INFO,
@@ -271,7 +271,7 @@
 		*node = &walk_state->local_variables[index];
 		break;
 
-	case AML_ARG_OP:
+	case ACPI_REFCLASS_ARG:
 
 		if (index > ACPI_METHOD_MAX_ARG) {
 			ACPI_ERROR((AE_INFO,
@@ -286,8 +286,8 @@
 		break;
 
 	default:
-		ACPI_ERROR((AE_INFO, "Opcode %d is invalid", opcode));
-		return_ACPI_STATUS(AE_AML_BAD_OPCODE);
+		ACPI_ERROR((AE_INFO, "Type %d is invalid", type));
+		return_ACPI_STATUS(AE_TYPE);
 	}
 
 	return_ACPI_STATUS(AE_OK);
@@ -297,7 +297,8 @@
  *
  * FUNCTION:    acpi_ds_method_data_set_value
  *
- * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  Type                - Either ACPI_REFCLASS_LOCAL or
+ *                                    ACPI_REFCLASS_ARG
  *              Index               - Which Local or Arg to get
  *              Object              - Object to be inserted into the stack entry
  *              walk_state          - Current walk state object
@@ -310,7 +311,7 @@
  ******************************************************************************/
 
 static acpi_status
-acpi_ds_method_data_set_value(u16 opcode,
+acpi_ds_method_data_set_value(u8 type,
 			      u32 index,
 			      union acpi_operand_object *object,
 			      struct acpi_walk_state *walk_state)
@@ -321,13 +322,13 @@
 	ACPI_FUNCTION_TRACE(ds_method_data_set_value);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-			  "NewObj %p Opcode %X, Refs=%d [%s]\n", object,
-			  opcode, object->common.reference_count,
+			  "NewObj %p Type %2.2X, Refs=%d [%s]\n", object,
+			  type, object->common.reference_count,
 			  acpi_ut_get_type_name(object->common.type)));
 
 	/* Get the namespace node for the arg/local */
 
-	status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
+	status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -350,7 +351,8 @@
  *
  * FUNCTION:    acpi_ds_method_data_get_value
  *
- * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  Type                - Either ACPI_REFCLASS_LOCAL or
+ *                                    ACPI_REFCLASS_ARG
  *              Index               - Which local_var or argument to get
  *              walk_state          - Current walk state object
  *              dest_desc           - Where Arg or Local value is returned
@@ -363,7 +365,7 @@
  ******************************************************************************/
 
 acpi_status
-acpi_ds_method_data_get_value(u16 opcode,
+acpi_ds_method_data_get_value(u8 type,
 			      u32 index,
 			      struct acpi_walk_state *walk_state,
 			      union acpi_operand_object **dest_desc)
@@ -383,7 +385,7 @@
 
 	/* Get the namespace node for the arg/local */
 
-	status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
+	status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -419,8 +421,8 @@
 		/* Otherwise, return the error */
 
 		else
-			switch (opcode) {
-			case AML_ARG_OP:
+			switch (type) {
+			case ACPI_REFCLASS_ARG:
 
 				ACPI_ERROR((AE_INFO,
 					    "Uninitialized Arg[%d] at node %p",
@@ -428,7 +430,7 @@
 
 				return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG);
 
-			case AML_LOCAL_OP:
+			case ACPI_REFCLASS_LOCAL:
 
 				ACPI_ERROR((AE_INFO,
 					    "Uninitialized Local[%d] at node %p",
@@ -437,9 +439,10 @@
 				return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL);
 
 			default:
+
 				ACPI_ERROR((AE_INFO,
 					    "Not a Arg/Local opcode: %X",
-					    opcode));
+					    type));
 				return_ACPI_STATUS(AE_AML_INTERNAL);
 			}
 	}
@@ -458,7 +461,8 @@
  *
  * FUNCTION:    acpi_ds_method_data_delete_value
  *
- * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  Type                - Either ACPI_REFCLASS_LOCAL or
+ *                                    ACPI_REFCLASS_ARG
  *              Index               - Which local_var or argument to delete
  *              walk_state          - Current walk state object
  *
@@ -470,7 +474,7 @@
  ******************************************************************************/
 
 static void
-acpi_ds_method_data_delete_value(u16 opcode,
+acpi_ds_method_data_delete_value(u8 type,
 				 u32 index, struct acpi_walk_state *walk_state)
 {
 	acpi_status status;
@@ -481,7 +485,7 @@
 
 	/* Get the namespace node for the arg/local */
 
-	status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
+	status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
 	if (ACPI_FAILURE(status)) {
 		return_VOID;
 	}
@@ -514,7 +518,8 @@
  *
  * FUNCTION:    acpi_ds_store_object_to_local
  *
- * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
+ * PARAMETERS:  Type                - Either ACPI_REFCLASS_LOCAL or
+ *                                    ACPI_REFCLASS_ARG
  *              Index               - Which Local or Arg to set
  *              obj_desc            - Value to be stored
  *              walk_state          - Current walk state
@@ -528,7 +533,7 @@
  ******************************************************************************/
 
 acpi_status
-acpi_ds_store_object_to_local(u16 opcode,
+acpi_ds_store_object_to_local(u8 type,
 			      u32 index,
 			      union acpi_operand_object *obj_desc,
 			      struct acpi_walk_state *walk_state)
@@ -539,8 +544,8 @@
 	union acpi_operand_object *new_obj_desc;
 
 	ACPI_FUNCTION_TRACE(ds_store_object_to_local);
-	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Opcode=%X Index=%d Obj=%p\n",
-			  opcode, index, obj_desc));
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n",
+			  type, index, obj_desc));
 
 	/* Parameter validation */
 
@@ -550,7 +555,7 @@
 
 	/* Get the namespace node for the arg/local */
 
-	status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
+	status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
@@ -602,7 +607,7 @@
 		 *
 		 * Weird, but true.
 		 */
-		if (opcode == AML_ARG_OP) {
+		if (type == ACPI_REFCLASS_ARG) {
 			/*
 			 * If we have a valid reference object that came from ref_of(),
 			 * do the indirect store
@@ -611,8 +616,8 @@
 			     ACPI_DESC_TYPE_OPERAND)
 			    && (current_obj_desc->common.type ==
 				ACPI_TYPE_LOCAL_REFERENCE)
-			    && (current_obj_desc->reference.opcode ==
-				AML_REF_OF_OP)) {
+			    && (current_obj_desc->reference.class ==
+				ACPI_REFCLASS_REFOF)) {
 				ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 						  "Arg (%p) is an ObjRef(Node), storing in node %p\n",
 						  new_obj_desc,
@@ -640,11 +645,9 @@
 			}
 		}
 
-		/*
-		 * Delete the existing object
-		 * before storing the new one
-		 */
-		acpi_ds_method_data_delete_value(opcode, index, walk_state);
+		/* Delete the existing object before storing the new one */
+
+		acpi_ds_method_data_delete_value(type, index, walk_state);
 	}
 
 	/*
@@ -653,7 +656,7 @@
 	 * (increments the object reference count by one)
 	 */
 	status =
-	    acpi_ds_method_data_set_value(opcode, index, new_obj_desc,
+	    acpi_ds_method_data_set_value(type, index, new_obj_desc,
 					  walk_state);
 
 	/* Remove local reference if we copied the object above */
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index 0f28058..4f08e59 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -731,54 +731,70 @@
 		switch (op_info->type) {
 		case AML_TYPE_LOCAL_VARIABLE:
 
-			/* Split the opcode into a base opcode + offset */
+			/* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
 
-			obj_desc->reference.opcode = AML_LOCAL_OP;
-			obj_desc->reference.offset = opcode - AML_LOCAL_OP;
+			obj_desc->reference.value = opcode - AML_LOCAL_OP;
+			obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
 
 #ifndef ACPI_NO_METHOD_EXECUTION
-			status = acpi_ds_method_data_get_node(AML_LOCAL_OP,
-							      obj_desc->
-							      reference.offset,
-							      walk_state,
-							      (struct
-							       acpi_namespace_node
-							       **)&obj_desc->
-							      reference.object);
+			status =
+			    acpi_ds_method_data_get_node(ACPI_REFCLASS_LOCAL,
+							 obj_desc->reference.
+							 value, walk_state,
+							 ACPI_CAST_INDIRECT_PTR
+							 (struct
+							  acpi_namespace_node,
+							  &obj_desc->reference.
+							  object));
 #endif
 			break;
 
 		case AML_TYPE_METHOD_ARGUMENT:
 
-			/* Split the opcode into a base opcode + offset */
+			/* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
 
-			obj_desc->reference.opcode = AML_ARG_OP;
-			obj_desc->reference.offset = opcode - AML_ARG_OP;
+			obj_desc->reference.value = opcode - AML_ARG_OP;
+			obj_desc->reference.class = ACPI_REFCLASS_ARG;
 
 #ifndef ACPI_NO_METHOD_EXECUTION
-			status = acpi_ds_method_data_get_node(AML_ARG_OP,
+			status = acpi_ds_method_data_get_node(ACPI_REFCLASS_ARG,
 							      obj_desc->
-							      reference.offset,
+							      reference.value,
 							      walk_state,
+							      ACPI_CAST_INDIRECT_PTR
 							      (struct
-							       acpi_namespace_node
-							       **)&obj_desc->
-							      reference.object);
+							       acpi_namespace_node,
+							       &obj_desc->
+							       reference.
+							       object));
 #endif
 			break;
 
-		default:	/* Other literals, etc.. */
+		default:	/* Object name or Debug object */
 
-			if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) {
+			switch (op->common.aml_opcode) {
+			case AML_INT_NAMEPATH_OP:
 
 				/* Node was saved in Op */
 
 				obj_desc->reference.node = op->common.node;
 				obj_desc->reference.object =
 				    op->common.node->object;
-			}
+				obj_desc->reference.class = ACPI_REFCLASS_NAME;
+				break;
 
-			obj_desc->reference.opcode = opcode;
+			case AML_DEBUG_OP:
+
+				obj_desc->reference.class = ACPI_REFCLASS_DEBUG;
+				break;
+
+			default:
+
+				ACPI_ERROR((AE_INFO,
+					    "Unimplemented reference type for AML opcode: %4.4X",
+					    opcode));
+				return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+			}
 			break;
 		}
 		break;
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index 6a81c44..69fae59 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -1330,7 +1330,7 @@
 			     (walk_state->results->results.obj_desc[0]) ==
 			     ACPI_TYPE_LOCAL_REFERENCE)
 			    && ((walk_state->results->results.obj_desc[0])->
-				reference.opcode != AML_INDEX_OP)) {
+				reference.class != ACPI_REFCLASS_INDEX)) {
 				status =
 				    acpi_ex_resolve_to_value(&walk_state->
 							     results->results.
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index b5072fa..396fe12 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -166,6 +166,10 @@
 		status = AE_CTRL_FALSE;
 	}
 
+	/* Predicate can be used for an implicit return value */
+
+	(void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE);
+
       cleanup:
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
@@ -429,10 +433,10 @@
 			     ACPI_TYPE_LOCAL_REFERENCE)
 			    && (walk_state->operands[1]->common.type ==
 				ACPI_TYPE_LOCAL_REFERENCE)
-			    && (walk_state->operands[0]->reference.opcode ==
-				walk_state->operands[1]->reference.opcode)
-			    && (walk_state->operands[0]->reference.offset ==
-				walk_state->operands[1]->reference.offset)) {
+			    && (walk_state->operands[0]->reference.class ==
+				walk_state->operands[1]->reference.class)
+			    && (walk_state->operands[0]->reference.value ==
+				walk_state->operands[1]->reference.value)) {
 				status = AE_OK;
 			} else {
 				ACPI_EXCEPTION((AE_INFO, status,
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 13593f9..4c00428 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -862,8 +862,19 @@
 						    &acpi_ec_space_handler,
 						    NULL, ec);
 	if (ACPI_FAILURE(status)) {
-		acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler);
-		return -ENODEV;
+		if (status == AE_NOT_FOUND) {
+			/*
+			 * Maybe OS fails in evaluating the _REG object.
+			 * The AE_NOT_FOUND error will be ignored and OS
+			 * continue to initialize EC.
+			 */
+			printk(KERN_ERR "Fail in evaluating the _REG object"
+				" of EC device. Broken bios is suspected.\n");
+		} else {
+			acpi_remove_gpe_handler(NULL, ec->gpe,
+				&acpi_ec_gpe_handler);
+			return -ENODEV;
+		}
 	}
 
 	ec->handlers_installed = 1;
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 8892b98..74da6fa 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acinterp.h>
-#include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
 #include <acpi/actables.h>
 #include <acpi/acdispat.h>
@@ -91,13 +90,12 @@
 
 	/* Init the table handle */
 
-	obj_desc->reference.opcode = AML_LOAD_OP;
+	obj_desc->reference.class = ACPI_REFCLASS_TABLE;
 	*ddb_handle = obj_desc;
 
 	/* Install the new table into the local data structures */
 
-	obj_desc->reference.object = ACPI_CAST_PTR(void,
-			(unsigned long)table_index);
+	obj_desc->reference.value = table_index;
 
 	/* Add the table to the namespace */
 
@@ -280,6 +278,7 @@
 		struct acpi_walk_state *walk_state)
 {
 	union acpi_operand_object *ddb_handle;
+	struct acpi_table_header *table;
 	struct acpi_table_desc table_desc;
 	u32 table_index;
 	acpi_status status;
@@ -294,9 +293,8 @@
 	switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
 	case ACPI_TYPE_REGION:
 
-		ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Load from Region %p %s\n",
-				  obj_desc,
-				  acpi_ut_get_object_type_name(obj_desc)));
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+				  "Load table from Region %p\n", obj_desc));
 
 		/* Region must be system_memory (from ACPI spec) */
 
@@ -316,22 +314,17 @@
 		}
 
 		/*
-		 * We will simply map the memory region for the table. However, the
-		 * memory region is technically not guaranteed to remain stable and
-		 * we may eventually have to copy the table to a local buffer.
+		 * Map the table header and get the actual table length. The region
+		 * length is not guaranteed to be the same as the table length.
 		 */
-		table_desc.address = obj_desc->region.address;
-		table_desc.length = obj_desc->region.length;
-		table_desc.flags = ACPI_TABLE_ORIGIN_MAPPED;
-		break;
+		table = acpi_os_map_memory(obj_desc->region.address,
+					   sizeof(struct acpi_table_header));
+		if (!table) {
+			return_ACPI_STATUS(AE_NO_MEMORY);
+		}
 
-	case ACPI_TYPE_BUFFER:	/* Buffer or resolved region_field */
-
-		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "Load from Buffer or Field %p %s\n", obj_desc,
-				  acpi_ut_get_object_type_name(obj_desc)));
-
-		length = obj_desc->buffer.length;
+		length = table->length;
+		acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
 
 		/* Must have at least an ACPI table header */
 
@@ -339,38 +332,94 @@
 			return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
 		}
 
-		/* Validate checksum here. It won't get validated in tb_add_table */
+		/*
+		 * The memory region is not guaranteed to remain stable and we must
+		 * copy the table to a local buffer. For example, the memory region
+		 * is corrupted after suspend on some machines. Dynamically loaded
+		 * tables are usually small, so this overhead is minimal.
+		 */
 
-		status =
-		    acpi_tb_verify_checksum(ACPI_CAST_PTR
-					    (struct acpi_table_header,
-					     obj_desc->buffer.pointer), length);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
+		/* Allocate a buffer for the table */
+
+		table_desc.pointer = ACPI_ALLOCATE(length);
+		if (!table_desc.pointer) {
+			return_ACPI_STATUS(AE_NO_MEMORY);
+		}
+
+		/* Map the entire table and copy it */
+
+		table = acpi_os_map_memory(obj_desc->region.address, length);
+		if (!table) {
+			ACPI_FREE(table_desc.pointer);
+			return_ACPI_STATUS(AE_NO_MEMORY);
+		}
+
+		ACPI_MEMCPY(table_desc.pointer, table, length);
+		acpi_os_unmap_memory(table, length);
+
+		table_desc.address = obj_desc->region.address;
+		break;
+
+	case ACPI_TYPE_BUFFER:	/* Buffer or resolved region_field */
+
+		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+				  "Load table from Buffer or Field %p\n",
+				  obj_desc));
+
+		/* Must have at least an ACPI table header */
+
+		if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) {
+			return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+		}
+
+		/* Get the actual table length from the table header */
+
+		table =
+		    ACPI_CAST_PTR(struct acpi_table_header,
+				  obj_desc->buffer.pointer);
+		length = table->length;
+
+		/* Table cannot extend beyond the buffer */
+
+		if (length > obj_desc->buffer.length) {
+			return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
+		}
+		if (length < sizeof(struct acpi_table_header)) {
+			return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
 		}
 
 		/*
-		 * We need to copy the buffer since the original buffer could be
-		 * changed or deleted in the future
+		 * Copy the table from the buffer because the buffer could be modified
+		 * or even deleted in the future
 		 */
 		table_desc.pointer = ACPI_ALLOCATE(length);
 		if (!table_desc.pointer) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
-		ACPI_MEMCPY(table_desc.pointer, obj_desc->buffer.pointer,
-			    length);
-		table_desc.length = length;
-		table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED;
+		ACPI_MEMCPY(table_desc.pointer, table, length);
+		table_desc.address = ACPI_TO_INTEGER(table_desc.pointer);
 		break;
 
 	default:
 		return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 	}
 
-	/*
-	 * Install the new table into the local data structures
-	 */
+	/* Validate table checksum (will not get validated in tb_add_table) */
+
+	status = acpi_tb_verify_checksum(table_desc.pointer, length);
+	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(table_desc.pointer);
+		return_ACPI_STATUS(status);
+	}
+
+	/* Complete the table descriptor */
+
+	table_desc.length = length;
+	table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED;
+
+	/* Install the new table into the local data structures */
+
 	status = acpi_tb_add_table(&table_desc, &table_index);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
@@ -379,7 +428,7 @@
 	/*
 	 * Add the table to the namespace.
 	 *
-	 * Note: We load the table objects relative to the root of the namespace.
+	 * Note: Load the table objects relative to the root of the namespace.
 	 * This appears to go against the ACPI specification, but we do it for
 	 * compatibility with other ACPI implementations.
 	 */
@@ -415,7 +464,7 @@
       cleanup:
 	if (ACPI_FAILURE(status)) {
 
-		/* Delete allocated buffer or mapping */
+		/* Delete allocated table buffer */
 
 		acpi_tb_delete_table(&table_desc);
 	}
@@ -455,9 +504,9 @@
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Get the table index from the ddb_handle (acpi_size for 64-bit case) */
+	/* Get the table index from the ddb_handle */
 
-	table_index = (u32) (acpi_size) table_desc->reference.object;
+	table_index = table_desc->reference.value;
 
 	/* Invoke table handler if present */
 
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index 261d975..1d1f35a 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -57,7 +57,7 @@
  *
  * FUNCTION:    acpi_ex_convert_to_integer
  *
- * PARAMETERS:  obj_desc        - Object to be converted.  Must be an
+ * PARAMETERS:  obj_desc        - Object to be converted. Must be an
  *                                Integer, Buffer, or String
  *              result_desc     - Where the new Integer object is returned
  *              Flags           - Used for string conversion
@@ -103,7 +103,7 @@
 	}
 
 	/*
-	 * Convert the buffer/string to an integer.  Note that both buffers and
+	 * Convert the buffer/string to an integer. Note that both buffers and
 	 * strings are treated as raw data - we don't convert ascii to hex for
 	 * strings.
 	 *
@@ -120,7 +120,7 @@
 
 		/*
 		 * Convert string to an integer - for most cases, the string must be
-		 * hexadecimal as per the ACPI specification.  The only exception (as
+		 * hexadecimal as per the ACPI specification. The only exception (as
 		 * of ACPI 3.0) is that the to_integer() operator allows both decimal
 		 * and hexadecimal strings (hex prefixed with "0x").
 		 */
@@ -159,6 +159,7 @@
 		break;
 
 	default:
+
 		/* No other types can get here */
 		break;
 	}
@@ -185,7 +186,7 @@
  *
  * FUNCTION:    acpi_ex_convert_to_buffer
  *
- * PARAMETERS:  obj_desc        - Object to be converted.  Must be an
+ * PARAMETERS:  obj_desc        - Object to be converted. Must be an
  *                                Integer, Buffer, or String
  *              result_desc     - Where the new buffer object is returned
  *
@@ -365,7 +366,7 @@
 	}
 
 	/*
-	 * Since leading zeros are supressed, we must check for the case where
+	 * Since leading zeros are suppressed, we must check for the case where
 	 * the integer equals 0
 	 *
 	 * Finally, null terminate the string and return the length
@@ -383,7 +384,7 @@
  *
  * FUNCTION:    acpi_ex_convert_to_string
  *
- * PARAMETERS:  obj_desc        - Object to be converted.  Must be an
+ * PARAMETERS:  obj_desc        - Object to be converted. Must be an
  *                                Integer, Buffer, or String
  *              result_desc     - Where the string object is returned
  *              Type            - String flags (base and conversion type)
@@ -472,7 +473,7 @@
 			base = 10;
 
 			/*
-			 * Calculate the final string length.  Individual string values
+			 * Calculate the final string length. Individual string values
 			 * are variable length (include separator for each)
 			 */
 			for (i = 0; i < obj_desc->buffer.length; i++) {
@@ -511,9 +512,14 @@
 		/*
 		 * Create a new string object and string buffer
 		 * (-1 because of extra separator included in string_length from above)
+		 * Allow creation of zero-length strings from zero-length buffers.
 		 */
+		if (string_length) {
+			string_length--;
+		}
+
 		return_desc = acpi_ut_create_string_object((acpi_size)
-							   (string_length - 1));
+							   string_length);
 		if (!return_desc) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
@@ -536,7 +542,9 @@
 		 * Null terminate the string
 		 * (overwrites final comma/space from above)
 		 */
-		new_buf--;
+		if (obj_desc->buffer.length) {
+			new_buf--;
+		}
 		*new_buf = 0;
 		break;
 
@@ -617,7 +625,7 @@
 		case ACPI_TYPE_LOCAL_BANK_FIELD:
 		case ACPI_TYPE_LOCAL_INDEX_FIELD:
 			/*
-			 * These types require an Integer operand.  We can convert
+			 * These types require an Integer operand. We can convert
 			 * a Buffer or a String to an Integer if necessary.
 			 */
 			status =
@@ -627,7 +635,7 @@
 
 		case ACPI_TYPE_STRING:
 			/*
-			 * The operand must be a String.  We can convert an
+			 * The operand must be a String. We can convert an
 			 * Integer or Buffer if necessary
 			 */
 			status =
@@ -637,7 +645,7 @@
 
 		case ACPI_TYPE_BUFFER:
 			/*
-			 * The operand must be a Buffer.  We can convert an
+			 * The operand must be a Buffer. We can convert an
 			 * Integer or String if necessary
 			 */
 			status =
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index 2be2e2b..d087a7d 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -45,7 +45,6 @@
 #include <acpi/acinterp.h>
 #include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exdump")
@@ -214,10 +213,11 @@
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(index_field.data_obj), "Data Object"}
 };
 
-static struct acpi_exdump_info acpi_ex_dump_reference[7] = {
+static struct acpi_exdump_info acpi_ex_dump_reference[8] = {
 	{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_reference), NULL},
+	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.class), "Class"},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(reference.target_type), "Target Type"},
-	{ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.offset), "Offset"},
+	{ACPI_EXD_UINT32, ACPI_EXD_OFFSET(reference.value), "Value"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.object), "Object Desc"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.node), "Node"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(reference.where), "Where"},
@@ -413,10 +413,10 @@
 
 		case ACPI_EXD_REFERENCE:
 
-			acpi_ex_out_string("Opcode",
-					   (acpi_ps_get_opcode_info
-					    (obj_desc->reference.opcode))->
-					   name);
+			acpi_ex_out_string("Class Name",
+					   (char *)
+					   acpi_ut_get_reference_name
+					   (obj_desc));
 			acpi_ex_dump_reference_obj(obj_desc);
 			break;
 
@@ -494,40 +494,41 @@
 	switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		switch (obj_desc->reference.opcode) {
-		case AML_DEBUG_OP:
+		acpi_os_printf("Reference: [%s] ",
+			       acpi_ut_get_reference_name(obj_desc));
 
-			acpi_os_printf("Reference: Debug\n");
+		switch (obj_desc->reference.class) {
+		case ACPI_REFCLASS_DEBUG:
+
+			acpi_os_printf("\n");
 			break;
 
-		case AML_INDEX_OP:
+		case ACPI_REFCLASS_INDEX:
 
-			acpi_os_printf("Reference: Index %p\n",
-				       obj_desc->reference.object);
+			acpi_os_printf("%p\n", obj_desc->reference.object);
 			break;
 
-		case AML_LOAD_OP:
+		case ACPI_REFCLASS_TABLE:
 
-			acpi_os_printf("Reference: [DdbHandle] TableIndex %p\n",
-				       obj_desc->reference.object);
+			acpi_os_printf("Table Index %X\n",
+				       obj_desc->reference.value);
 			break;
 
-		case AML_REF_OF_OP:
+		case ACPI_REFCLASS_REFOF:
 
-			acpi_os_printf("Reference: (RefOf) %p [%s]\n",
-				       obj_desc->reference.object,
+			acpi_os_printf("%p [%s]\n", obj_desc->reference.object,
 				       acpi_ut_get_type_name(((union
 							       acpi_operand_object
-							       *)obj_desc->
+							       *)
+							      obj_desc->
 							      reference.
 							      object)->common.
 							     type));
 			break;
 
-		case AML_ARG_OP:
+		case ACPI_REFCLASS_ARG:
 
-			acpi_os_printf("Reference: Arg%d",
-				       obj_desc->reference.offset);
+			acpi_os_printf("%X", obj_desc->reference.value);
 
 			if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
 
@@ -542,10 +543,9 @@
 			acpi_os_printf("\n");
 			break;
 
-		case AML_LOCAL_OP:
+		case ACPI_REFCLASS_LOCAL:
 
-			acpi_os_printf("Reference: Local%d",
-				       obj_desc->reference.offset);
+			acpi_os_printf("%X", obj_desc->reference.value);
 
 			if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) {
 
@@ -560,21 +560,16 @@
 			acpi_os_printf("\n");
 			break;
 
-		case AML_INT_NAMEPATH_OP:
+		case ACPI_REFCLASS_NAME:
 
-			acpi_os_printf("Reference: Namepath %X [%4.4s]\n",
-				       obj_desc->reference.node->name.integer,
+			acpi_os_printf("- [%4.4s]\n",
 				       obj_desc->reference.node->name.ascii);
 			break;
 
-		default:
+		default:	/* Unknown reference class */
 
-			/* Unknown opcode */
-
-			acpi_os_printf("Unknown Reference opcode=%X\n",
-				       obj_desc->reference.opcode);
+			acpi_os_printf("%2.2X\n", obj_desc->reference.class);
 			break;
-
 		}
 		break;
 
@@ -865,8 +860,8 @@
 
 	ret_buf.length = ACPI_ALLOCATE_LOCAL_BUFFER;
 
-	if (obj_desc->reference.opcode == AML_INT_NAMEPATH_OP) {
-		acpi_os_printf(" Named Object %p ", obj_desc->reference.node);
+	if (obj_desc->reference.class == ACPI_REFCLASS_NAME) {
+		acpi_os_printf(" %p ", obj_desc->reference.node);
 
 		status =
 		    acpi_ns_handle_to_pathname(obj_desc->reference.node,
@@ -882,14 +877,12 @@
 		    ACPI_DESC_TYPE_OPERAND) {
 			acpi_os_printf(" Target: %p",
 				       obj_desc->reference.object);
-			if (obj_desc->reference.opcode == AML_LOAD_OP) {
-				/*
-				 * For DDBHandle reference,
-				 * obj_desc->Reference.Object is the table index
-				 */
-				acpi_os_printf(" [DDBHandle]\n");
+			if (obj_desc->reference.class == ACPI_REFCLASS_TABLE) {
+				acpi_os_printf(" Table Index: %X\n",
+					       obj_desc->reference.value);
 			} else {
-				acpi_os_printf(" [%s]\n",
+				acpi_os_printf(" Target: %p [%s]\n",
+					       obj_desc->reference.object,
 					       acpi_ut_get_type_name(((union
 								       acpi_operand_object
 								       *)
@@ -988,9 +981,9 @@
 
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		acpi_os_printf("[Object Reference] %s",
-			       (acpi_ps_get_opcode_info
-				(obj_desc->reference.opcode))->name);
+		acpi_os_printf("[Object Reference] Type [%s] %2.2X",
+			       acpi_ut_get_reference_name(obj_desc),
+			       obj_desc->reference.class);
 		acpi_ex_dump_reference_obj(obj_desc);
 		break;
 
diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c
index 731414a..efb1913 100644
--- a/drivers/acpi/executer/exmisc.c
+++ b/drivers/acpi/executer/exmisc.c
@@ -86,10 +86,10 @@
 		/*
 		 * Must be a reference to a Local or Arg
 		 */
-		switch (obj_desc->reference.opcode) {
-		case AML_LOCAL_OP:
-		case AML_ARG_OP:
-		case AML_DEBUG_OP:
+		switch (obj_desc->reference.class) {
+		case ACPI_REFCLASS_LOCAL:
+		case ACPI_REFCLASS_ARG:
+		case ACPI_REFCLASS_DEBUG:
 
 			/* The referenced object is the pseudo-node for the local/arg */
 
@@ -98,8 +98,8 @@
 
 		default:
 
-			ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X",
-				    obj_desc->reference.opcode));
+			ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
+				    obj_desc->reference.class));
 			return_ACPI_STATUS(AE_AML_INTERNAL);
 		}
 		break;
@@ -127,7 +127,7 @@
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	reference_obj->reference.opcode = AML_REF_OF_OP;
+	reference_obj->reference.class = ACPI_REFCLASS_REFOF;
 	reference_obj->reference.object = referenced_obj;
 	*return_desc = reference_obj;
 
diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index 7c3bea5..f622f9e 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -825,16 +825,16 @@
 				 *
 				 * Must resolve/dereference the local/arg reference first
 				 */
-				switch (operand[0]->reference.opcode) {
-				case AML_LOCAL_OP:
-				case AML_ARG_OP:
+				switch (operand[0]->reference.class) {
+				case ACPI_REFCLASS_LOCAL:
+				case ACPI_REFCLASS_ARG:
 
 					/* Set Operand[0] to the value of the local/arg */
 
 					status =
 					    acpi_ds_method_data_get_value
-					    (operand[0]->reference.opcode,
-					     operand[0]->reference.offset,
+					    (operand[0]->reference.class,
+					     operand[0]->reference.value,
 					     walk_state, &temp_desc);
 					if (ACPI_FAILURE(status)) {
 						goto cleanup;
@@ -848,7 +848,7 @@
 					operand[0] = temp_desc;
 					break;
 
-				case AML_REF_OF_OP:
+				case ACPI_REFCLASS_REFOF:
 
 					/* Get the object to which the reference refers */
 
@@ -928,8 +928,8 @@
 			 * This must be a reference object produced by either the
 			 * Index() or ref_of() operator
 			 */
-			switch (operand[0]->reference.opcode) {
-			case AML_INDEX_OP:
+			switch (operand[0]->reference.class) {
+			case ACPI_REFCLASS_INDEX:
 
 				/*
 				 * The target type for the Index operator must be
@@ -965,7 +965,7 @@
 					return_desc->integer.value =
 					    temp_desc->buffer.
 					    pointer[operand[0]->reference.
-						    offset];
+						    value];
 					break;
 
 				case ACPI_TYPE_PACKAGE:
@@ -985,7 +985,7 @@
 				default:
 
 					ACPI_ERROR((AE_INFO,
-						    "Unknown Index TargetType %X in obj %p",
+						    "Unknown Index TargetType %X in reference object %p",
 						    operand[0]->reference.
 						    target_type, operand[0]));
 					status = AE_AML_OPERAND_TYPE;
@@ -993,7 +993,7 @@
 				}
 				break;
 
-			case AML_REF_OF_OP:
+			case ACPI_REFCLASS_REFOF:
 
 				return_desc = operand[0]->reference.object;
 
@@ -1013,9 +1013,9 @@
 
 			default:
 				ACPI_ERROR((AE_INFO,
-					    "Unknown opcode in reference(%p) - %X",
+					    "Unknown class in reference(%p) - %2.2X",
 					    operand[0],
-					    operand[0]->reference.opcode));
+					    operand[0]->reference.class));
 
 				status = AE_TYPE;
 				goto cleanup;
diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c
index 8e8bbb6..368def5 100644
--- a/drivers/acpi/executer/exoparg2.c
+++ b/drivers/acpi/executer/exoparg2.c
@@ -391,8 +391,8 @@
 		/* Initialize the Index reference object */
 
 		index = operand[1]->integer.value;
-		return_desc->reference.offset = (u32) index;
-		return_desc->reference.opcode = AML_INDEX_OP;
+		return_desc->reference.value = (u32) index;
+		return_desc->reference.class = ACPI_REFCLASS_INDEX;
 
 		/*
 		 * At this point, the Source operand is a String, Buffer, or Package.
diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c
index 5596f42..423ad36 100644
--- a/drivers/acpi/executer/exresnte.c
+++ b/drivers/acpi/executer/exresnte.c
@@ -46,8 +46,6 @@
 #include <acpi/acdispat.h>
 #include <acpi/acinterp.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
-#include <acpi/amlcode.h>
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exresnte")
@@ -238,10 +236,10 @@
 
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		switch (source_desc->reference.opcode) {
-		case AML_LOAD_OP:	/* This is a ddb_handle */
-		case AML_REF_OF_OP:
-		case AML_INDEX_OP:
+		switch (source_desc->reference.class) {
+		case ACPI_REFCLASS_TABLE:	/* This is a ddb_handle */
+		case ACPI_REFCLASS_REFOF:
+		case ACPI_REFCLASS_INDEX:
 
 			/* Return an additional reference to the object */
 
@@ -253,10 +251,8 @@
 			/* No named references are allowed here */
 
 			ACPI_ERROR((AE_INFO,
-				    "Unsupported Reference opcode %X (%s)",
-				    source_desc->reference.opcode,
-				    acpi_ps_get_opcode_name(source_desc->
-							    reference.opcode)));
+				    "Unsupported Reference type %X",
+				    source_desc->reference.class));
 
 			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 		}
diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c
index b35f7c8..89571b9 100644
--- a/drivers/acpi/executer/exresolv.c
+++ b/drivers/acpi/executer/exresolv.c
@@ -47,7 +47,6 @@
 #include <acpi/acdispat.h>
 #include <acpi/acinterp.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exresolv")
@@ -141,7 +140,7 @@
 	acpi_status status = AE_OK;
 	union acpi_operand_object *stack_desc;
 	union acpi_operand_object *obj_desc = NULL;
-	u16 opcode;
+	u8 ref_type;
 
 	ACPI_FUNCTION_TRACE(ex_resolve_object_to_value);
 
@@ -152,19 +151,19 @@
 	switch (ACPI_GET_OBJECT_TYPE(stack_desc)) {
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		opcode = stack_desc->reference.opcode;
+		ref_type = stack_desc->reference.class;
 
-		switch (opcode) {
-		case AML_LOCAL_OP:
-		case AML_ARG_OP:
+		switch (ref_type) {
+		case ACPI_REFCLASS_LOCAL:
+		case ACPI_REFCLASS_ARG:
 
 			/*
 			 * Get the local from the method's state info
 			 * Note: this increments the local's object reference count
 			 */
-			status = acpi_ds_method_data_get_value(opcode,
+			status = acpi_ds_method_data_get_value(ref_type,
 							       stack_desc->
-							       reference.offset,
+							       reference.value,
 							       walk_state,
 							       &obj_desc);
 			if (ACPI_FAILURE(status)) {
@@ -173,7 +172,7 @@
 
 			ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 					  "[Arg/Local %X] ValueObj is %p\n",
-					  stack_desc->reference.offset,
+					  stack_desc->reference.value,
 					  obj_desc));
 
 			/*
@@ -184,7 +183,7 @@
 			*stack_ptr = obj_desc;
 			break;
 
-		case AML_INDEX_OP:
+		case ACPI_REFCLASS_INDEX:
 
 			switch (stack_desc->reference.target_type) {
 			case ACPI_TYPE_BUFFER_FIELD:
@@ -239,15 +238,15 @@
 			}
 			break;
 
-		case AML_REF_OF_OP:
-		case AML_DEBUG_OP:
-		case AML_LOAD_OP:
+		case ACPI_REFCLASS_REFOF:
+		case ACPI_REFCLASS_DEBUG:
+		case ACPI_REFCLASS_TABLE:
 
 			/* Just leave the object as-is, do not dereference */
 
 			break;
 
-		case AML_INT_NAMEPATH_OP:	/* Reference to a named object */
+		case ACPI_REFCLASS_NAME:	/* Reference to a named object */
 
 			/* Dereference the name */
 
@@ -273,8 +272,7 @@
 		default:
 
 			ACPI_ERROR((AE_INFO,
-				    "Unknown Reference opcode %X (%s) in %p",
-				    opcode, acpi_ps_get_opcode_name(opcode),
+				    "Unknown Reference type %X in %p", ref_type,
 				    stack_desc));
 			status = AE_AML_INTERNAL;
 			break;
@@ -388,13 +386,13 @@
 	 * traversing the list of possibly many nested references.
 	 */
 	while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) {
-		switch (obj_desc->reference.opcode) {
-		case AML_REF_OF_OP:
-		case AML_INT_NAMEPATH_OP:
+		switch (obj_desc->reference.class) {
+		case ACPI_REFCLASS_REFOF:
+		case ACPI_REFCLASS_NAME:
 
 			/* Dereference the reference pointer */
 
-			if (obj_desc->reference.opcode == AML_REF_OF_OP) {
+			if (obj_desc->reference.class == ACPI_REFCLASS_REFOF) {
 				node = obj_desc->reference.object;
 			} else {	/* AML_INT_NAMEPATH_OP */
 
@@ -429,7 +427,7 @@
 			}
 			break;
 
-		case AML_INDEX_OP:
+		case ACPI_REFCLASS_INDEX:
 
 			/* Get the type of this reference (index into another object) */
 
@@ -455,22 +453,22 @@
 			}
 			break;
 
-		case AML_LOAD_OP:
+		case ACPI_REFCLASS_TABLE:
 
 			type = ACPI_TYPE_DDB_HANDLE;
 			goto exit;
 
-		case AML_LOCAL_OP:
-		case AML_ARG_OP:
+		case ACPI_REFCLASS_LOCAL:
+		case ACPI_REFCLASS_ARG:
 
 			if (return_desc) {
 				status =
 				    acpi_ds_method_data_get_value(obj_desc->
 								  reference.
-								  opcode,
+								  class,
 								  obj_desc->
 								  reference.
-								  offset,
+								  value,
 								  walk_state,
 								  &obj_desc);
 				if (ACPI_FAILURE(status)) {
@@ -481,10 +479,10 @@
 				status =
 				    acpi_ds_method_data_get_node(obj_desc->
 								 reference.
-								 opcode,
+								 class,
 								 obj_desc->
 								 reference.
-								 offset,
+								 value,
 								 walk_state,
 								 &node);
 				if (ACPI_FAILURE(status)) {
@@ -499,7 +497,7 @@
 			}
 			break;
 
-		case AML_DEBUG_OP:
+		case ACPI_REFCLASS_DEBUG:
 
 			/* The Debug Object is of type "DebugObject" */
 
@@ -509,8 +507,8 @@
 		default:
 
 			ACPI_ERROR((AE_INFO,
-				    "Unknown Reference subtype %X",
-				    obj_desc->reference.opcode));
+				    "Unknown Reference Class %2.2X",
+				    obj_desc->reference.class));
 			return_ACPI_STATUS(AE_AML_INTERNAL);
 		}
 	}
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index 54085f1..0bb8259 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -225,41 +225,36 @@
 
 			if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
 
-				/* Decode the Reference */
+				/* Validate the Reference */
 
-				op_info = acpi_ps_get_opcode_info(opcode);
-				if (op_info->class == AML_CLASS_UNKNOWN) {
-					return_ACPI_STATUS(AE_AML_BAD_OPCODE);
-				}
+				switch (obj_desc->reference.class) {
+				case ACPI_REFCLASS_DEBUG:
 
-				switch (obj_desc->reference.opcode) {
-				case AML_DEBUG_OP:
 					target_op = AML_DEBUG_OP;
 
 					/*lint -fallthrough */
 
-				case AML_INDEX_OP:
-				case AML_REF_OF_OP:
-				case AML_ARG_OP:
-				case AML_LOCAL_OP:
-				case AML_LOAD_OP:	/* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
-				case AML_INT_NAMEPATH_OP:	/* Reference to a named object */
+				case ACPI_REFCLASS_ARG:
+				case ACPI_REFCLASS_LOCAL:
+				case ACPI_REFCLASS_INDEX:
+				case ACPI_REFCLASS_REFOF:
+				case ACPI_REFCLASS_TABLE:	/* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
+				case ACPI_REFCLASS_NAME:	/* Reference to a named object */
 
-					ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT
-								((ACPI_DB_EXEC,
-								  "Operand is a Reference, RefOpcode [%s]\n",
-								  (acpi_ps_get_opcode_info
-								   (obj_desc->
-								    reference.
-								    opcode))->
-								  name)));
+					ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+							  "Operand is a Reference, Class [%s] %2.2X\n",
+							  acpi_ut_get_reference_name
+							  (obj_desc),
+							  obj_desc->reference.
+							  class));
 					break;
 
 				default:
+
 					ACPI_ERROR((AE_INFO,
-						    "Operand is a Reference, Unknown Reference Opcode: %X",
-						    obj_desc->reference.
-						    opcode));
+						    "Unknown Reference Class %2.2X in %p",
+						    obj_desc->reference.class,
+						    obj_desc));
 
 					return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 				}
@@ -270,8 +265,7 @@
 
 			/* Invalid descriptor */
 
-			ACPI_ERROR((AE_INFO,
-				    "Invalid descriptor %p [%s]",
+			ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]",
 				    obj_desc,
 				    acpi_ut_get_descriptor_name(obj_desc)));
 
@@ -343,7 +337,7 @@
 			if ((opcode == AML_STORE_OP) &&
 			    (ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
 			     ACPI_TYPE_LOCAL_REFERENCE)
-			    && ((*stack_ptr)->reference.opcode == AML_INDEX_OP)) {
+			    && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) {
 				goto next_operand;
 			}
 			break;
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
index 38b55e3..3318df4 100644
--- a/drivers/acpi/executer/exstore.c
+++ b/drivers/acpi/executer/exstore.c
@@ -47,7 +47,6 @@
 #include <acpi/acinterp.h>
 #include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exstore")
@@ -179,22 +178,26 @@
 
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		if (source_desc->reference.opcode == AML_INDEX_OP) {
-			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-					      "[%s, 0x%X]\n",
-					      acpi_ps_get_opcode_name
-					      (source_desc->reference.opcode),
-					      source_desc->reference.offset));
-		} else {
-			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s]",
-					      acpi_ps_get_opcode_name
-					      (source_desc->reference.opcode)));
-		}
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ",
+				      acpi_ut_get_reference_name(source_desc)));
 
-		if (source_desc->reference.opcode == AML_LOAD_OP) {	/* Load and load_table */
+		/* Decode the reference */
+
+		switch (source_desc->reference.class) {
+		case ACPI_REFCLASS_INDEX:
+
+			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n",
+					      source_desc->reference.value));
+			break;
+
+		case ACPI_REFCLASS_TABLE:
+
 			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
-					      " Table OwnerId %p\n",
-					      source_desc->reference.object));
+					      "Table Index 0x%X\n",
+					      source_desc->reference.value));
+			break;
+
+		default:
 			break;
 		}
 
@@ -347,15 +350,15 @@
 	}
 
 	/*
-	 * Examine the Reference opcode.  These cases are handled:
+	 * Examine the Reference class. These cases are handled:
 	 *
 	 * 1) Store to Name (Change the object associated with a name)
 	 * 2) Store to an indexed area of a Buffer or Package
 	 * 3) Store to a Method Local or Arg
 	 * 4) Store to the debug object
 	 */
-	switch (ref_desc->reference.opcode) {
-	case AML_REF_OF_OP:
+	switch (ref_desc->reference.class) {
+	case ACPI_REFCLASS_REFOF:
 
 		/* Storing an object into a Name "container" */
 
@@ -365,7 +368,7 @@
 						      ACPI_IMPLICIT_CONVERSION);
 		break;
 
-	case AML_INDEX_OP:
+	case ACPI_REFCLASS_INDEX:
 
 		/* Storing to an Index (pointer into a packager or buffer) */
 
@@ -374,18 +377,18 @@
 						  walk_state);
 		break;
 
-	case AML_LOCAL_OP:
-	case AML_ARG_OP:
+	case ACPI_REFCLASS_LOCAL:
+	case ACPI_REFCLASS_ARG:
 
 		/* Store to a method local/arg  */
 
 		status =
-		    acpi_ds_store_object_to_local(ref_desc->reference.opcode,
-						  ref_desc->reference.offset,
+		    acpi_ds_store_object_to_local(ref_desc->reference.class,
+						  ref_desc->reference.value,
 						  source_desc, walk_state);
 		break;
 
-	case AML_DEBUG_OP:
+	case ACPI_REFCLASS_DEBUG:
 
 		/*
 		 * Storing to the Debug object causes the value stored to be
@@ -401,9 +404,9 @@
 
 	default:
 
-		ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X",
-			    ref_desc->reference.opcode));
-		ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_ERROR);
+		ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
+			    ref_desc->reference.class));
+		ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO);
 
 		status = AE_AML_INTERNAL;
 		break;
@@ -458,7 +461,7 @@
 
 		if (ACPI_GET_OBJECT_TYPE(source_desc) ==
 		    ACPI_TYPE_LOCAL_REFERENCE
-		    && source_desc->reference.opcode == AML_LOAD_OP) {
+		    && source_desc->reference.class == ACPI_REFCLASS_TABLE) {
 
 			/* This is a DDBHandle, just add a reference to it */
 
@@ -553,7 +556,7 @@
 
 		/* Store the source value into the target buffer byte */
 
-		obj_desc->buffer.pointer[index_desc->reference.offset] = value;
+		obj_desc->buffer.pointer[index_desc->reference.value] = value;
 		break;
 
 	default:
diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c
index a6d2168..eef61a0 100644
--- a/drivers/acpi/executer/exstoren.c
+++ b/drivers/acpi/executer/exstoren.c
@@ -121,7 +121,8 @@
 		    (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_STRING) &&
 		    !((ACPI_GET_OBJECT_TYPE(source_desc) ==
 		       ACPI_TYPE_LOCAL_REFERENCE)
-		      && (source_desc->reference.opcode == AML_LOAD_OP))) {
+		      && (source_desc->reference.class ==
+			  ACPI_REFCLASS_TABLE))) {
 
 			/* Conversion successful but still not a valid type */
 
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 2655bc1..dfc0486 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -327,8 +327,8 @@
 
 	result = acpi_bus_get_power(device->handle, &power_state);
 	if (result) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Error reading fan power state\n"));
+		printk(KERN_ERR PREFIX
+				  "Error reading fan power state\n");
 		return result;
 	}
 
diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile
index 3f63d36..371a2da 100644
--- a/drivers/acpi/namespace/Makefile
+++ b/drivers/acpi/namespace/Makefile
@@ -5,7 +5,7 @@
 obj-y := nsaccess.o  nsload.o    nssearch.o  nsxfeval.o \
 	 nsalloc.o   nseval.o    nsnames.o   nsutils.o   nsxfname.o \
 	 nsdump.o    nsinit.o    nsobject.o  nswalk.o    nsxfobj.o  \
-	 nsparse.o
+	 nsparse.o   nspredef.o
 
 obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
 
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
index 0ab2200..cc0ae39 100644
--- a/drivers/acpi/namespace/nsdump.c
+++ b/drivers/acpi/namespace/nsdump.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
-#include <acpi/acparser.h>
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsdump")
@@ -334,9 +333,7 @@
 		case ACPI_TYPE_LOCAL_REFERENCE:
 
 			acpi_os_printf("[%s]\n",
-				       acpi_ps_get_opcode_name(obj_desc->
-							       reference.
-							       opcode));
+				       acpi_ut_get_reference_name(obj_desc));
 			break;
 
 		case ACPI_TYPE_BUFFER_FIELD:
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index d369164..4cdf03a 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -78,6 +78,7 @@
 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
 {
 	acpi_status status;
+	struct acpi_namespace_node *node;
 
 	ACPI_FUNCTION_TRACE(ns_evaluate);
 
@@ -117,6 +118,8 @@
 			  info->resolved_node,
 			  acpi_ns_get_attached_object(info->resolved_node)));
 
+	node = info->resolved_node;
+
 	/*
 	 * Two major cases here:
 	 *
@@ -148,21 +151,22 @@
 				info->param_count++;
 		}
 
-		/* Error if too few arguments were passed in */
+		/*
+		 * Warning if too few or too many arguments have been passed by the
+		 * caller. We don't want to abort here with an error because an
+		 * incorrect number of arguments may not cause the method to fail.
+		 * However, the method will fail if there are too few arguments passed
+		 * and the method attempts to use one of the missing ones.
+		 */
 
 		if (info->param_count < info->obj_desc->method.param_count) {
-			ACPI_ERROR((AE_INFO,
+			ACPI_WARNING((AE_INFO,
 				    "Insufficient arguments - "
 				    "method [%4.4s] needs %d, found %d",
 				    acpi_ut_get_node_name(info->resolved_node),
 				    info->obj_desc->method.param_count,
 				    info->param_count));
-			return_ACPI_STATUS(AE_MISSING_ARGUMENTS);
-		}
-
-		/* Just a warning if too many arguments */
-
-		else if (info->param_count >
+		} else if (info->param_count >
 				info->obj_desc->method.param_count) {
 			ACPI_WARNING((AE_INFO,
 				      "Excess arguments - "
@@ -195,7 +199,28 @@
 	} else {
 		/*
 		 * 2) Object is not a method, return its current value
+		 *
+		 * Disallow certain object types. For these, "evaluation" is undefined.
 		 */
+		switch (info->resolved_node->type) {
+		case ACPI_TYPE_DEVICE:
+		case ACPI_TYPE_EVENT:
+		case ACPI_TYPE_MUTEX:
+		case ACPI_TYPE_REGION:
+		case ACPI_TYPE_THERMAL:
+		case ACPI_TYPE_LOCAL_SCOPE:
+
+			ACPI_ERROR((AE_INFO,
+				    "[%4.4s] Evaluation of object type [%s] is not supported",
+				    info->resolved_node->name.ascii,
+				    acpi_ut_get_type_name(info->resolved_node->
+							  type)));
+
+			return_ACPI_STATUS(AE_TYPE);
+
+		default:
+			break;
+		}
 
 		/*
 		 * Objects require additional resolution steps (e.g., the Node may be
@@ -239,9 +264,35 @@
 		}
 	}
 
-	/*
-	 * Check if there is a return value that must be dealt with
-	 */
+	/* Validation of return values for ACPI-predefined methods and objects */
+
+	if ((status == AE_OK) || (status == AE_CTRL_RETURN_VALUE)) {
+		/*
+		 * If this is the first evaluation, check the return value. This
+		 * ensures that any warnings will only be emitted during the very
+		 * first evaluation of the object.
+		 */
+		if (!(node->flags & ANOBJ_EVALUATED)) {
+			/*
+			 * Check for a predefined ACPI name. If found, validate the
+			 * returned object.
+			 *
+			 * Note: Ignore return status for now, emit warnings if there are
+			 * problems with the returned object. May change later to abort
+			 * the method on invalid return object.
+			 */
+			(void)acpi_ns_check_predefined_names(node,
+							     info->
+							     return_object);
+		}
+
+		/* Mark the node as having been evaluated */
+
+		node->flags |= ANOBJ_EVALUATED;
+	}
+
+	/* Check if there is a return value that must be dealt with */
+
 	if (status == AE_CTRL_RETURN_VALUE) {
 
 		/* If caller does not want the return value, delete it */
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index bd57738..42a39a7 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -115,7 +115,6 @@
 	return (AE_OK);
 }
 
-#ifdef ACPI_DEBUG_OUTPUT
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_get_external_pathname
@@ -142,7 +141,7 @@
 
 	size = acpi_ns_get_pathname_length(node);
 	if (!size) {
-		return (NULL);
+		return_PTR(NULL);
 	}
 
 	/* Allocate a buffer to be returned to caller */
@@ -157,12 +156,12 @@
 
 	status = acpi_ns_build_external_path(node, size, name_buffer);
 	if (ACPI_FAILURE(status)) {
-		return (NULL);
+		ACPI_FREE(name_buffer);
+		return_PTR(NULL);
 	}
 
 	return_PTR(name_buffer);
 }
-#endif
 
 /*******************************************************************************
  *
diff --git a/drivers/acpi/namespace/nspredef.c b/drivers/acpi/namespace/nspredef.c
new file mode 100644
index 0000000..0f17cf0
--- /dev/null
+++ b/drivers/acpi/namespace/nspredef.c
@@ -0,0 +1,900 @@
+/******************************************************************************
+ *
+ * Module Name: nspredef - Validation of ACPI predefined methods and objects
+ *              $Revision: 1.1 $
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, 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 <acpi/acnamesp.h>
+#include <acpi/acpredef.h>
+
+#define _COMPONENT          ACPI_NAMESPACE
+ACPI_MODULE_NAME("nspredef")
+
+/*******************************************************************************
+ *
+ * This module validates predefined ACPI objects that appear in the namespace,
+ * at the time they are evaluated (via acpi_evaluate_object). The purpose of this
+ * validation is to detect problems with BIOS-exposed predefined ACPI objects
+ * before the results are returned to the ACPI-related drivers.
+ *
+ * There are several areas that are validated:
+ *
+ *  1) The number of input arguments as defined by the method/object in the
+ *      ASL is validated against the ACPI specification.
+ *  2) The type of the return object (if any) is validated against the ACPI
+ *      specification.
+ *  3) For returned package objects, the count of package elements is
+ *      validated, as well as the type of each package element. Nested
+ *      packages are supported.
+ *
+ * For any problems found, a warning message is issued.
+ *
+ ******************************************************************************/
+/* Local prototypes */
+static acpi_status
+acpi_ns_check_package(char *pathname,
+		      union acpi_operand_object *return_object,
+		      const union acpi_predefined_info *predefined);
+
+static acpi_status
+acpi_ns_check_package_elements(char *pathname,
+			       union acpi_operand_object **elements,
+			       u8 type1, u32 count1, u8 type2, u32 count2);
+
+static acpi_status
+acpi_ns_check_object_type(char *pathname,
+			  union acpi_operand_object *return_object,
+			  u32 expected_btypes, u32 package_index);
+
+static acpi_status
+acpi_ns_check_reference(char *pathname,
+			union acpi_operand_object *return_object);
+
+/*
+ * Names for the types that can be returned by the predefined objects.
+ * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
+ */
+static const char *acpi_rtype_names[] = {
+	"/Integer",
+	"/String",
+	"/Buffer",
+	"/Package",
+	"/Reference",
+};
+
+#define ACPI_NOT_PACKAGE    ACPI_UINT32_MAX
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_predefined_names
+ *
+ * PARAMETERS:  Node            - Namespace node for the method/object
+ *              return_object   - Object returned from the evaluation of this
+ *                                method/object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check an ACPI name for a match in the predefined name list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
+			       union acpi_operand_object *return_object)
+{
+	acpi_status status = AE_OK;
+	const union acpi_predefined_info *predefined;
+	char *pathname;
+
+	/* Match the name for this method/object against the predefined list */
+
+	predefined = acpi_ns_check_for_predefined_name(node);
+	if (!predefined) {
+
+		/* Name was not one of the predefined names */
+
+		return (AE_OK);
+	}
+
+	/* Get the full pathname to the object, for use in error messages */
+
+	pathname = acpi_ns_get_external_pathname(node);
+	if (!pathname) {
+		pathname = ACPI_CAST_PTR(char, predefined->info.name);
+	}
+
+	/*
+	 * Check that the parameter count for this method is in accordance
+	 * with the ACPI specification.
+	 */
+	acpi_ns_check_parameter_count(pathname, node, predefined);
+
+	/*
+	 * If there is no return value, check if we require a return value for
+	 * this predefined name. Either one return value is expected, or none,
+	 * for both methods and other objects.
+	 *
+	 * Exit now if there is no return object. Warning if one was expected.
+	 */
+	if (!return_object) {
+		if ((predefined->info.expected_btypes) &&
+		    (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) {
+			ACPI_ERROR((AE_INFO,
+				    "%s: Missing expected return value",
+				    pathname));
+
+			status = AE_AML_NO_RETURN_VALUE;
+		}
+		goto exit;
+	}
+
+	/*
+	 * We have a return value, but if one wasn't expected, just exit, this is
+	 * not a problem
+	 *
+	 * For example, if "Implicit return value" is enabled, methods will
+	 * always return a value
+	 */
+	if (!predefined->info.expected_btypes) {
+		goto exit;
+	}
+
+	/*
+	 * Check that the type of the return object is what is expected for
+	 * this predefined name
+	 */
+	status = acpi_ns_check_object_type(pathname, return_object,
+					   predefined->info.expected_btypes,
+					   ACPI_NOT_PACKAGE);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* For returned Package objects, check the type of all sub-objects */
+
+	if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) {
+		status =
+		    acpi_ns_check_package(pathname, return_object, predefined);
+	}
+
+      exit:
+	if (pathname) {
+		ACPI_FREE(pathname);
+	}
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_parameter_count
+ *
+ * PARAMETERS:  Pathname        - Full pathname to the node (for error msgs)
+ *              Node            - Namespace node for the method/object
+ *              Predefined      - Pointer to entry in predefined name table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a
+ *              predefined name is what is expected (i.e., what is defined in
+ *              the ACPI specification for this predefined name.)
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_check_parameter_count(char *pathname,
+			      struct acpi_namespace_node *node,
+			      const union acpi_predefined_info *predefined)
+{
+	u32 param_count;
+	u32 required_params_current;
+	u32 required_params_old;
+
+	/*
+	 * Check that the ASL-defined parameter count is what is expected for
+	 * this predefined name.
+	 *
+	 * Methods have 0-7 parameters. All other types have zero.
+	 */
+	param_count = 0;
+	if (node->type == ACPI_TYPE_METHOD) {
+		param_count = node->object->method.param_count;
+	}
+
+	/* Validate parameter count - allow two different legal counts (_SCP) */
+
+	required_params_current = predefined->info.param_count & 0x0F;
+	required_params_old = predefined->info.param_count >> 4;
+
+	if ((param_count != required_params_current) &&
+	    (param_count != required_params_old)) {
+		ACPI_WARNING((AE_INFO,
+			      "%s: Parameter count mismatch - ASL declared %d, expected %d",
+			      pathname, param_count, required_params_current));
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_for_predefined_name
+ *
+ * PARAMETERS:  Node            - Namespace node for the method/object
+ *
+ * RETURN:      Pointer to entry in predefined table. NULL indicates not found.
+ *
+ * DESCRIPTION: Check an object name against the predefined object list.
+ *
+ ******************************************************************************/
+
+const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
+								    acpi_namespace_node
+								    *node)
+{
+	const union acpi_predefined_info *this_name;
+
+	/* Quick check for a predefined name, first character must be underscore */
+
+	if (node->name.ascii[0] != '_') {
+		return (NULL);
+	}
+
+	/* Search info table for a predefined method/object name */
+
+	this_name = predefined_names;
+	while (this_name->info.name[0]) {
+		if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) {
+
+			/* Return pointer to this table entry */
+
+			return (this_name);
+		}
+
+		/*
+		 * Skip next entry in the table if this name returns a Package
+		 * (next entry contains the package info)
+		 */
+		if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
+			this_name++;
+		}
+
+		this_name++;
+	}
+
+	return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_package
+ *
+ * PARAMETERS:  Pathname        - Full pathname to the node (for error msgs)
+ *              return_object   - Object returned from the evaluation of a
+ *                                method or object
+ *              Predefined      - Pointer to entry in predefined name table
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check a returned package object for the correct count and
+ *              correct type of all sub-objects.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package(char *pathname,
+		      union acpi_operand_object *return_object,
+		      const union acpi_predefined_info *predefined)
+{
+	const union acpi_predefined_info *package;
+	union acpi_operand_object *sub_package;
+	union acpi_operand_object **elements;
+	union acpi_operand_object **sub_elements;
+	acpi_status status;
+	u32 expected_count;
+	u32 count;
+	u32 i;
+	u32 j;
+
+	ACPI_FUNCTION_NAME(ns_check_package);
+
+	/* The package info for this name is in the next table entry */
+
+	package = predefined + 1;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
+			  "%s Validating return Package of Type %X, Count %X\n",
+			  pathname, package->ret_info.type,
+			  return_object->package.count));
+
+	/* Extract package count and elements array */
+
+	elements = return_object->package.elements;
+	count = return_object->package.count;
+
+	/* The package must have at least one element, else invalid */
+
+	if (!count) {
+		ACPI_WARNING((AE_INFO,
+			      "%s: Return Package has no elements (empty)",
+			      pathname));
+
+		return (AE_AML_OPERAND_VALUE);
+	}
+
+	/*
+	 * Decode the type of the expected package contents
+	 *
+	 * PTYPE1 packages contain no subpackages
+	 * PTYPE2 packages contain sub-packages
+	 */
+	switch (package->ret_info.type) {
+	case ACPI_PTYPE1_FIXED:
+
+		/*
+		 * The package count is fixed and there are no sub-packages
+		 *
+		 * If package is too small, exit.
+		 * If package is larger than expected, issue warning but continue
+		 */
+		expected_count =
+		    package->ret_info.count1 + package->ret_info.count2;
+		if (count < expected_count) {
+			goto package_too_small;
+		} else if (count > expected_count) {
+			ACPI_WARNING((AE_INFO,
+				      "%s: Return Package is larger than needed - "
+				      "found %u, expected %u", pathname, count,
+				      expected_count));
+		}
+
+		/* Validate all elements of the returned package */
+
+		status = acpi_ns_check_package_elements(pathname, elements,
+							package->ret_info.
+							object_type1,
+							package->ret_info.
+							count1,
+							package->ret_info.
+							object_type2,
+							package->ret_info.
+							count2);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+		break;
+
+	case ACPI_PTYPE1_VAR:
+
+		/*
+		 * The package count is variable, there are no sub-packages, and all
+		 * elements must be of the same type
+		 */
+		for (i = 0; i < count; i++) {
+			status = acpi_ns_check_object_type(pathname, *elements,
+							   package->ret_info.
+							   object_type1, i);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			elements++;
+		}
+		break;
+
+	case ACPI_PTYPE1_OPTION:
+
+		/*
+		 * The package count is variable, there are no sub-packages. There are
+		 * a fixed number of required elements, and a variable number of
+		 * optional elements.
+		 *
+		 * Check if package is at least as large as the minimum required
+		 */
+		expected_count = package->ret_info3.count;
+		if (count < expected_count) {
+			goto package_too_small;
+		}
+
+		/* Variable number of sub-objects */
+
+		for (i = 0; i < count; i++) {
+			if (i < package->ret_info3.count) {
+
+				/* These are the required package elements (0, 1, or 2) */
+
+				status =
+				    acpi_ns_check_object_type(pathname,
+							      *elements,
+							      package->
+							      ret_info3.
+							      object_type[i],
+							      i);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+			} else {
+				/* These are the optional package elements */
+
+				status =
+				    acpi_ns_check_object_type(pathname,
+							      *elements,
+							      package->
+							      ret_info3.
+							      tail_object_type,
+							      i);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+			}
+			elements++;
+		}
+		break;
+
+	case ACPI_PTYPE2_PKG_COUNT:
+
+		/* First element is the (Integer) count of sub-packages to follow */
+
+		status = acpi_ns_check_object_type(pathname, *elements,
+						   ACPI_RTYPE_INTEGER, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		/*
+		 * Count cannot be larger than the parent package length, but allow it
+		 * to be smaller. The >= accounts for the Integer above.
+		 */
+		expected_count = (u32) (*elements)->integer.value;
+		if (expected_count >= count) {
+			goto package_too_small;
+		}
+
+		count = expected_count;
+		elements++;
+
+		/* Now we can walk the sub-packages */
+
+		/*lint -fallthrough */
+
+	case ACPI_PTYPE2:
+	case ACPI_PTYPE2_FIXED:
+	case ACPI_PTYPE2_MIN:
+	case ACPI_PTYPE2_COUNT:
+
+		/*
+		 * These types all return a single package that consists of a variable
+		 * number of sub-packages
+		 */
+		for (i = 0; i < count; i++) {
+			sub_package = *elements;
+			sub_elements = sub_package->package.elements;
+
+			/* Each sub-object must be of type Package */
+
+			status =
+			    acpi_ns_check_object_type(pathname, sub_package,
+						      ACPI_RTYPE_PACKAGE, i);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+
+			/* Examine the different types of sub-packages */
+
+			switch (package->ret_info.type) {
+			case ACPI_PTYPE2:
+			case ACPI_PTYPE2_PKG_COUNT:
+
+				/* Each subpackage has a fixed number of elements */
+
+				expected_count =
+				    package->ret_info.count1 +
+				    package->ret_info.count2;
+				if (sub_package->package.count !=
+				    expected_count) {
+					count = sub_package->package.count;
+					goto package_too_small;
+				}
+
+				status =
+				    acpi_ns_check_package_elements(pathname,
+								   sub_elements,
+								   package->
+								   ret_info.
+								   object_type1,
+								   package->
+								   ret_info.
+								   count1,
+								   package->
+								   ret_info.
+								   object_type2,
+								   package->
+								   ret_info.
+								   count2);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+				break;
+
+			case ACPI_PTYPE2_FIXED:
+
+				/* Each sub-package has a fixed length */
+
+				expected_count = package->ret_info2.count;
+				if (sub_package->package.count < expected_count) {
+					count = sub_package->package.count;
+					goto package_too_small;
+				}
+
+				/* Check the type of each sub-package element */
+
+				for (j = 0; j < expected_count; j++) {
+					status =
+					    acpi_ns_check_object_type(pathname,
+								      sub_elements
+								      [j],
+								      package->
+								      ret_info2.
+								      object_type
+								      [j], j);
+					if (ACPI_FAILURE(status)) {
+						return (status);
+					}
+				}
+				break;
+
+			case ACPI_PTYPE2_MIN:
+
+				/* Each sub-package has a variable but minimum length */
+
+				expected_count = package->ret_info.count1;
+				if (sub_package->package.count < expected_count) {
+					count = sub_package->package.count;
+					goto package_too_small;
+				}
+
+				/* Check the type of each sub-package element */
+
+				status =
+				    acpi_ns_check_package_elements(pathname,
+								   sub_elements,
+								   package->
+								   ret_info.
+								   object_type1,
+								   sub_package->
+								   package.
+								   count, 0, 0);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+				break;
+
+			case ACPI_PTYPE2_COUNT:
+
+				/* First element is the (Integer) count of elements to follow */
+
+				status =
+				    acpi_ns_check_object_type(pathname,
+							      *sub_elements,
+							      ACPI_RTYPE_INTEGER,
+							      0);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+
+				/* Make sure package is large enough for the Count */
+
+				expected_count =
+				    (u32) (*sub_elements)->integer.value;
+				if (sub_package->package.count < expected_count) {
+					count = sub_package->package.count;
+					goto package_too_small;
+				}
+
+				/* Check the type of each sub-package element */
+
+				status =
+				    acpi_ns_check_package_elements(pathname,
+								   (sub_elements
+								    + 1),
+								   package->
+								   ret_info.
+								   object_type1,
+								   (expected_count
+								    - 1), 0, 0);
+				if (ACPI_FAILURE(status)) {
+					return (status);
+				}
+				break;
+
+			default:
+				break;
+			}
+
+			elements++;
+		}
+		break;
+
+	default:
+
+		/* Should not get here if predefined info table is correct */
+
+		ACPI_WARNING((AE_INFO,
+			      "%s: Invalid internal return type in table entry: %X",
+			      pathname, package->ret_info.type));
+
+		return (AE_AML_INTERNAL);
+	}
+
+	return (AE_OK);
+
+      package_too_small:
+
+	/* Error exit for the case with an incorrect package count */
+
+	ACPI_WARNING((AE_INFO, "%s: Return Package is too small - "
+		      "found %u, expected %u", pathname, count,
+		      expected_count));
+
+	return (AE_AML_OPERAND_VALUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_package_elements
+ *
+ * PARAMETERS:  Pathname        - Full pathname to the node (for error msgs)
+ *              Elements        - Pointer to the package elements array
+ *              Type1           - Object type for first group
+ *              Count1          - Count for first group
+ *              Type2           - Object type for second group
+ *              Count2          - Count for second group
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check that all elements of a package are of the correct object
+ *              type. Supports up to two groups of different object types.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_package_elements(char *pathname,
+			       union acpi_operand_object **elements,
+			       u8 type1, u32 count1, u8 type2, u32 count2)
+{
+	union acpi_operand_object **this_element = elements;
+	acpi_status status;
+	u32 i;
+
+	/*
+	 * Up to two groups of package elements are supported by the data
+	 * structure. All elements in each group must be of the same type.
+	 * The second group can have a count of zero.
+	 */
+	for (i = 0; i < count1; i++) {
+		status = acpi_ns_check_object_type(pathname, *this_element,
+						   type1, i);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+		this_element++;
+	}
+
+	for (i = 0; i < count2; i++) {
+		status = acpi_ns_check_object_type(pathname, *this_element,
+						   type2, (i + count1));
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+		this_element++;
+	}
+
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_object_type
+ *
+ * PARAMETERS:  Pathname        - Full pathname to the node (for error msgs)
+ *              return_object   - Object return from the execution of this
+ *                                method/object
+ *              expected_btypes - Bitmap of expected return type(s)
+ *              package_index   - Index of object within parent package (if
+ *                                applicable - ACPI_NOT_PACKAGE otherwise)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check the type of the return object against the expected object
+ *              type(s). Use of Btype allows multiple expected object types.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_object_type(char *pathname,
+			  union acpi_operand_object *return_object,
+			  u32 expected_btypes, u32 package_index)
+{
+	acpi_status status = AE_OK;
+	u32 return_btype;
+	char type_buffer[48];	/* Room for 5 types */
+	u32 this_rtype;
+	u32 i;
+	u32 j;
+
+	/*
+	 * If we get a NULL return_object here, it is a NULL package element,
+	 * and this is always an error.
+	 */
+	if (!return_object) {
+		goto type_error_exit;
+	}
+
+	/* A Namespace node should not get here, but make sure */
+
+	if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
+		ACPI_WARNING((AE_INFO,
+			      "%s: Invalid return type - Found a Namespace node [%4.4s] type %s",
+			      pathname, return_object->node.name.ascii,
+			      acpi_ut_get_type_name(return_object->node.type)));
+		return (AE_AML_OPERAND_TYPE);
+	}
+
+	/*
+	 * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type.
+	 * The bitmapped type allows multiple possible return types.
+	 *
+	 * Note, the cases below must handle all of the possible types returned
+	 * from all of the predefined names (including elements of returned
+	 * packages)
+	 */
+	switch (ACPI_GET_OBJECT_TYPE(return_object)) {
+	case ACPI_TYPE_INTEGER:
+		return_btype = ACPI_RTYPE_INTEGER;
+		break;
+
+	case ACPI_TYPE_BUFFER:
+		return_btype = ACPI_RTYPE_BUFFER;
+		break;
+
+	case ACPI_TYPE_STRING:
+		return_btype = ACPI_RTYPE_STRING;
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+		return_btype = ACPI_RTYPE_PACKAGE;
+		break;
+
+	case ACPI_TYPE_LOCAL_REFERENCE:
+		return_btype = ACPI_RTYPE_REFERENCE;
+		break;
+
+	default:
+		/* Not one of the supported objects, must be incorrect */
+
+		goto type_error_exit;
+	}
+
+	/* Is the object one of the expected types? */
+
+	if (!(return_btype & expected_btypes)) {
+		goto type_error_exit;
+	}
+
+	/* For reference objects, check that the reference type is correct */
+
+	if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) {
+		status = acpi_ns_check_reference(pathname, return_object);
+	}
+
+	return (status);
+
+      type_error_exit:
+
+	/* Create a string with all expected types for this predefined object */
+
+	j = 1;
+	type_buffer[0] = 0;
+	this_rtype = ACPI_RTYPE_INTEGER;
+
+	for (i = 0; i < ACPI_NUM_RTYPES; i++) {
+
+		/* If one of the expected types, concatenate the name of this type */
+
+		if (expected_btypes & this_rtype) {
+			ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]);
+			j = 0;	/* Use name separator from now on */
+		}
+		this_rtype <<= 1;	/* Next Rtype */
+	}
+
+	if (package_index == ACPI_NOT_PACKAGE) {
+		ACPI_WARNING((AE_INFO,
+			      "%s: Return type mismatch - found %s, expected %s",
+			      pathname,
+			      acpi_ut_get_object_type_name(return_object),
+			      type_buffer));
+	} else {
+		ACPI_WARNING((AE_INFO,
+			      "%s: Return Package type mismatch at index %u - "
+			      "found %s, expected %s", pathname, package_index,
+			      acpi_ut_get_object_type_name(return_object),
+			      type_buffer));
+	}
+
+	return (AE_AML_OPERAND_TYPE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_check_reference
+ *
+ * PARAMETERS:  Pathname        - Full pathname to the node (for error msgs)
+ *              return_object   - Object returned from the evaluation of a
+ *                                method or object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check a returned reference object for the correct reference
+ *              type. The only reference type that can be returned from a
+ *              predefined method is a named reference. All others are invalid.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_check_reference(char *pathname,
+			union acpi_operand_object *return_object)
+{
+
+	/*
+	 * Check the reference object for the correct reference type (opcode).
+	 * The only type of reference that can be converted to an union acpi_object is
+	 * a reference to a named object (reference class: NAME)
+	 */
+	if (return_object->reference.class == ACPI_REFCLASS_NAME) {
+		return (AE_OK);
+	}
+
+	ACPI_WARNING((AE_INFO,
+		      "%s: Return type mismatch - unexpected reference object type [%s] %2.2X",
+		      pathname, acpi_ut_get_reference_name(return_object),
+		      return_object->reference.class));
+
+	return (AE_AML_OPERAND_TYPE);
+}
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
index 8399276..a9a80bf 100644
--- a/drivers/acpi/namespace/nssearch.c
+++ b/drivers/acpi/namespace/nssearch.c
@@ -331,7 +331,7 @@
 				      "Found bad character(s) in name, repaired: [%4.4s]\n",
 				      ACPI_CAST_PTR(char, &target_name)));
 		} else {
-			ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "Found bad character(s) in name, repaired: [%4.4s]\n",
 					  ACPI_CAST_PTR(char, &target_name)));
 		}
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index 38be586..a085cc3 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -48,6 +48,10 @@
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsxfeval")
+
+/* Local prototypes */
+static void acpi_ns_resolve_references(struct acpi_evaluate_info *info);
+
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -69,6 +73,7 @@
  *              be valid (non-null)
  *
  ******************************************************************************/
+
 acpi_status
 acpi_evaluate_object_typed(acpi_handle handle,
 			   acpi_string pathname,
@@ -283,6 +288,10 @@
 
 			if (ACPI_SUCCESS(status)) {
 
+				/* Dereference Index and ref_of references */
+
+				acpi_ns_resolve_references(info);
+
 				/* Get the size of the returned object */
 
 				status =
@@ -352,6 +361,74 @@
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ns_resolve_references
+ *
+ * PARAMETERS:  Info                    - Evaluation info block
+ *
+ * RETURN:      Info->return_object is replaced with the dereferenced object
+ *
+ * DESCRIPTION: Dereference certain reference objects. Called before an
+ *              internal return object is converted to an external union acpi_object.
+ *
+ * Performs an automatic dereference of Index and ref_of reference objects.
+ * These reference objects are not supported by the union acpi_object, so this is a
+ * last resort effort to return something useful. Also, provides compatibility
+ * with other ACPI implementations.
+ *
+ * NOTE: does not handle references within returned package objects or nested
+ * references, but this support could be added later if found to be necessary.
+ *
+ ******************************************************************************/
+static void acpi_ns_resolve_references(struct acpi_evaluate_info *info)
+{
+	union acpi_operand_object *obj_desc = NULL;
+	struct acpi_namespace_node *node;
+
+	/* We are interested in reference objects only */
+
+	if (ACPI_GET_OBJECT_TYPE(info->return_object) !=
+	    ACPI_TYPE_LOCAL_REFERENCE) {
+		return;
+	}
+
+	/*
+	 * Two types of references are supported - those created by Index and
+	 * ref_of operators. A name reference (AML_NAMEPATH_OP) can be converted
+	 * to an union acpi_object, so it is not dereferenced here. A ddb_handle
+	 * (AML_LOAD_OP) cannot be dereferenced, nor can it be converted to
+	 * an union acpi_object.
+	 */
+	switch (info->return_object->reference.class) {
+	case ACPI_REFCLASS_INDEX:
+
+		obj_desc = *(info->return_object->reference.where);
+		break;
+
+	case ACPI_REFCLASS_REFOF:
+
+		node = info->return_object->reference.object;
+		if (node) {
+			obj_desc = node->object;
+		}
+		break;
+
+	default:
+		return;
+	}
+
+	/* Replace the existing reference object */
+
+	if (obj_desc) {
+		acpi_ut_add_reference(obj_desc);
+		acpi_ut_remove_reference(info->return_object);
+		info->return_object = obj_desc;
+	}
+
+	return;
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_walk_namespace
  *
  * PARAMETERS:  Type                - acpi_object_type to search for
@@ -379,6 +456,7 @@
  *              function, etc.
  *
  ******************************************************************************/
+
 acpi_status
 acpi_walk_namespace(acpi_object_type type,
 		    acpi_handle start_object,
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c
index a287ed5..5efa4e7 100644
--- a/drivers/acpi/namespace/nsxfname.c
+++ b/drivers/acpi/namespace/nsxfname.c
@@ -253,6 +253,7 @@
 	node = acpi_ns_map_handle_to_node(handle);
 	if (!node) {
 		(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+		status = AE_BAD_PARAMETER;
 		goto cleanup;
 	}
 
@@ -264,6 +265,10 @@
 	info->name = node->name.integer;
 	info->valid = 0;
 
+	if (node->type == ACPI_TYPE_METHOD) {
+		info->param_count = node->object->method.param_count;
+	}
+
 	status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 235a138..1420a9f 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -729,8 +729,8 @@
 	INIT_WORK(&dpc->work, acpi_os_execute_deferred);
 	queue = (type == OSL_NOTIFY_HANDLER) ? kacpi_notify_wq : kacpid_wq;
 	if (!queue_work(queue, &dpc->work)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			  "Call to queue_work() failed.\n"));
+		printk(KERN_ERR PREFIX
+			  "Call to queue_work() failed.\n");
 		status = AE_ERROR;
 		kfree(dpc);
 	}
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c
index c06238e..4647039 100644
--- a/drivers/acpi/parser/psloop.c
+++ b/drivers/acpi/parser/psloop.c
@@ -719,6 +719,8 @@
 		*op = NULL;
 	}
 
+	ACPI_PREEMPTION_POINT();
+
 	return_ACPI_STATUS(AE_OK);
 }
 
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index 15e1702..68e932f 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -137,6 +137,7 @@
 	union acpi_parse_object *next;
 	const struct acpi_opcode_info *parent_info;
 	union acpi_parse_object *replacement_op = NULL;
+	acpi_status status = AE_OK;
 
 	ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op);
 
@@ -186,7 +187,7 @@
 			replacement_op =
 			    acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
 			if (!replacement_op) {
-				goto allocate_error;
+				status = AE_NO_MEMORY;
 			}
 			break;
 
@@ -211,7 +212,7 @@
 				replacement_op =
 				    acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
 				if (!replacement_op) {
-					goto allocate_error;
+					status = AE_NO_MEMORY;
 				}
 			} else
 			    if ((op->common.parent->common.aml_opcode ==
@@ -226,13 +227,13 @@
 					    acpi_ps_alloc_op(op->common.
 							     aml_opcode);
 					if (!replacement_op) {
-						goto allocate_error;
+						status = AE_NO_MEMORY;
+					} else {
+						replacement_op->named.data =
+						    op->named.data;
+						replacement_op->named.length =
+						    op->named.length;
 					}
-
-					replacement_op->named.data =
-					    op->named.data;
-					replacement_op->named.length =
-					    op->named.length;
 				}
 			}
 			break;
@@ -242,7 +243,7 @@
 			replacement_op =
 			    acpi_ps_alloc_op(AML_INT_RETURN_VALUE_OP);
 			if (!replacement_op) {
-				goto allocate_error;
+				status = AE_NO_MEMORY;
 			}
 		}
 
@@ -302,14 +303,7 @@
 	/* Now we can actually delete the subtree rooted at Op */
 
 	acpi_ps_delete_parse_tree(op);
-	return_ACPI_STATUS(AE_OK);
-
-      allocate_error:
-
-	/* Always delete the subtree, even on error */
-
-	acpi_ps_delete_parse_tree(op);
-	return_ACPI_STATUS(AE_NO_MEMORY);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
@@ -641,10 +635,12 @@
 					    ACPI_WALK_METHOD_RESTART;
 				}
 			} else {
-				/* On error, delete any return object */
+				/* On error, delete any return object or implicit return */
 
 				acpi_ut_remove_reference(previous_walk_state->
 							 return_desc);
+				acpi_ds_clear_implicit_return
+				    (previous_walk_state);
 			}
 		}
 
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index cf47805..65bf4fa 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -709,7 +709,7 @@
 			  acpi_device_bid(link->device)));
 
 	if (link->refcnt == 0) {
-		acpi_ut_evaluate_object(link->device->handle, "_DIS", 0, NULL);
+		acpi_evaluate_object(link->device->handle, "_DIS", NULL, NULL);
 	}
 	mutex_unlock(&acpi_link_lock);
 	return (link->irq.active);
@@ -773,7 +773,7 @@
 
       end:
 	/* disable all links -- to be activated on use */
-	acpi_ut_evaluate_object(device->handle, "_DIS", 0, NULL);
+	acpi_evaluate_object(device->handle, "_DIS", NULL, NULL);
 	mutex_unlock(&acpi_link_lock);
 
 	if (result)
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 4ab21cb..7ff7349 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -54,6 +54,14 @@
 #define ACPI_POWER_RESOURCE_STATE_OFF	0x00
 #define ACPI_POWER_RESOURCE_STATE_ON	0x01
 #define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF
+
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "acpi."
+int acpi_power_nocheck;
+module_param_named(power_nocheck, acpi_power_nocheck, bool, 000);
+
 static int acpi_power_add(struct acpi_device *device);
 static int acpi_power_remove(struct acpi_device *device, int type);
 static int acpi_power_resume(struct acpi_device *device);
@@ -128,16 +136,16 @@
 	return 0;
 }
 
-static int acpi_power_get_state(struct acpi_power_resource *resource, int *state)
+static int acpi_power_get_state(acpi_handle handle, int *state)
 {
 	acpi_status status = AE_OK;
 	unsigned long sta = 0;
 
 
-	if (!resource || !state)
+	if (!handle || !state)
 		return -EINVAL;
 
-	status = acpi_evaluate_integer(resource->device->handle, "_STA", NULL, &sta);
+	status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -145,7 +153,7 @@
 			      ACPI_POWER_RESOURCE_STATE_OFF;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] is %s\n",
-			  resource->name, state ? "on" : "off"));
+			  acpi_ut_get_node_name(handle), state ? "on" : "off"));
 
 	return 0;
 }
@@ -153,7 +161,6 @@
 static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
 {
 	int result = 0, state1;
-	struct acpi_power_resource *resource = NULL;
 	u32 i = 0;
 
 
@@ -161,12 +168,15 @@
 		return -EINVAL;
 
 	/* The state of the list is 'on' IFF all resources are 'on'. */
+	/* */
 
 	for (i = 0; i < list->count; i++) {
-		result = acpi_power_get_context(list->handles[i], &resource);
-		if (result)
-			return result;
-		result = acpi_power_get_state(resource, &state1);
+		/*
+		 * The state of the power resource can be obtained by
+		 * using the ACPI handle. In such case it is unnecessary to
+		 * get the Power resource first and then get its state again.
+		 */
+		result = acpi_power_get_state(list->handles[i], &state1);
 		if (result)
 			return result;
 
@@ -226,12 +236,18 @@
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-	result = acpi_power_get_state(resource, &state);
-	if (result)
-		return result;
-	if (state != ACPI_POWER_RESOURCE_STATE_ON)
-		return -ENOEXEC;
-
+	if (!acpi_power_nocheck) {
+		/*
+		 * If acpi_power_nocheck is set, it is unnecessary to check
+		 * the power state after power transition.
+		 */
+		result = acpi_power_get_state(resource->device->handle,
+				&state);
+		if (result)
+			return result;
+		if (state != ACPI_POWER_RESOURCE_STATE_ON)
+			return -ENOEXEC;
+	}
 	/* Update the power resource's _device_ power state */
 	resource->device->power.state = ACPI_STATE_D0;
 
@@ -277,11 +293,17 @@
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-	result = acpi_power_get_state(resource, &state);
-	if (result)
-		return result;
-	if (state != ACPI_POWER_RESOURCE_STATE_OFF)
-		return -ENOEXEC;
+	if (!acpi_power_nocheck) {
+		/*
+		 * If acpi_power_nocheck is set, it is unnecessary to check
+		 * the power state after power transition.
+		 */
+		result = acpi_power_get_state(handle, &state);
+		if (result)
+			return result;
+		if (state != ACPI_POWER_RESOURCE_STATE_OFF)
+			return -ENOEXEC;
+	}
 
 	/* Update the power resource's _device_ power state */
 	resource->device->power.state = ACPI_STATE_D3;
@@ -555,7 +577,7 @@
 	if (!resource)
 		goto end;
 
-	result = acpi_power_get_state(resource, &state);
+	result = acpi_power_get_state(resource->device->handle, &state);
 	if (result)
 		goto end;
 
@@ -668,7 +690,7 @@
 	resource->system_level = acpi_object.power_resource.system_level;
 	resource->order = acpi_object.power_resource.resource_order;
 
-	result = acpi_power_get_state(resource, &state);
+	result = acpi_power_get_state(device->handle, &state);
 	if (result)
 		goto end;
 
@@ -735,7 +757,7 @@
 
 	resource = (struct acpi_power_resource *)acpi_driver_data(device);
 
-	result = acpi_power_get_state(resource, &state);
+	result = acpi_power_get_state(device->handle, &state);
 	if (result)
 		return result;
 
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 80c251e..b0614f3 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -38,6 +38,7 @@
 
 #include <asm/uaccess.h>
 #endif
+#include <asm/cpufeature.h>
 
 #include <acpi/acpi_bus.h>
 #include <acpi/processor.h>
@@ -334,7 +335,6 @@
 	acpi_status status = AE_OK;
 	acpi_handle handle = NULL;
 
-
 	if (!pr || !pr->performance || !pr->handle)
 		return -EINVAL;
 
@@ -347,13 +347,25 @@
 
 	result = acpi_processor_get_performance_control(pr);
 	if (result)
-		return result;
+		goto update_bios;
 
 	result = acpi_processor_get_performance_states(pr);
 	if (result)
-		return result;
+		goto update_bios;
 
 	return 0;
+
+	/*
+	 * Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that
+	 * the BIOS is older than the CPU and does not know its frequencies
+	 */
+ update_bios:
+	if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){
+		if(boot_cpu_has(X86_FEATURE_EST))
+			printk(KERN_WARNING FW_BUG "BIOS needs update for CPU "
+			       "frequency support\n");
+	}
+	return result;
 }
 
 int acpi_processor_notify_smm(struct module *calling_module)
@@ -524,13 +536,13 @@
 
 	psd = buffer.pointer;
 	if (!psd || (psd->type != ACPI_TYPE_PACKAGE)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _PSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (psd->package.count != 1) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _PSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
@@ -543,19 +555,19 @@
 	status = acpi_extract_package(&(psd->package.elements[0]),
 		&format, &state);
 	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _PSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:num_entries\n"));
+		printk(KERN_ERR PREFIX "Unknown _PSD:num_entries\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (pdomain->revision != ACPI_PSD_REV0_REVISION) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:revision\n"));
+		printk(KERN_ERR PREFIX "Unknown _PSD:revision\n");
 		result = -EFAULT;
 		goto end;
 	}
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index a56fc6c..e89a258 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -528,13 +528,13 @@
 
 	tsd = buffer.pointer;
 	if (!tsd || (tsd->type != ACPI_TYPE_PACKAGE)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _TSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (tsd->package.count != 1) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _TSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
@@ -547,19 +547,19 @@
 	status = acpi_extract_package(&(tsd->package.elements[0]),
 				      &format, &state);
 	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _TSD data\n"));
+		printk(KERN_ERR PREFIX "Invalid _TSD data\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (pdomain->num_entries != ACPI_TSD_REV0_ENTRIES) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _TSD:num_entries\n"));
+		printk(KERN_ERR PREFIX "Unknown _TSD:num_entries\n");
 		result = -EFAULT;
 		goto end;
 	}
 
 	if (pdomain->revision != ACPI_TSD_REV0_REVISION) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _TSD:revision\n"));
+		printk(KERN_ERR PREFIX "Unknown _TSD:revision\n");
 		result = -EFAULT;
 		goto end;
 	}
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index a6b662c..755baf2 100644
--- a/drivers/acpi/reboot.c
+++ b/drivers/acpi/reboot.c
@@ -15,9 +15,28 @@
 
 	rr = &acpi_gbl_FADT.reset_register;
 
-	/* Is the reset register supported? */
-	if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) ||
-	    rr->bit_width != 8 || rr->bit_offset != 0)
+	/*
+	 * Is the ACPI reset register supported?
+	 *
+	 * According to ACPI 3.0, FADT.flags.RESET_REG_SUP indicates
+	 * whether the ACPI reset mechanism is supported.
+	 *
+	 * However, some boxes have this bit clear, yet a valid
+	 * ACPI_RESET_REG & RESET_VALUE, and ACPI reboot is the only
+	 * mechanism that works for them after S3.
+	 *
+	 * This suggests that other operating systems may not be checking
+	 * the RESET_REG_SUP bit, and are using other means to decide
+	 * whether to use the ACPI reboot mechanism or not.
+	 *
+	 * So when acpi reboot is requested,
+	 * only the reset_register is checked. If the following
+	 * conditions are met, it indicates that the reset register is supported.
+	 * 	a. reset_register is not zero
+	 * 	b. the access width is eight
+	 * 	c. the bit_offset is zero
+	 */
+	if (!(rr->address) || rr->bit_width != 8 || rr->bit_offset != 0)
 		return;
 
 	reset_value = acpi_gbl_FADT.reset_value;
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index d9063ea..8eaaecf 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acresrc.h>
-#include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
 
 #define _COMPONENT          ACPI_RESOURCES
@@ -560,8 +559,8 @@
 			      ACPI_GET_OBJECT_TYPE(*sub_object_list)) ||
 			     ((ACPI_TYPE_LOCAL_REFERENCE ==
 			       ACPI_GET_OBJECT_TYPE(*sub_object_list)) &&
-			      ((*sub_object_list)->reference.opcode ==
-			       AML_INT_NAMEPATH_OP)))) {
+			      ((*sub_object_list)->reference.class ==
+			       ACPI_REFCLASS_NAME)))) {
 				name_found = TRUE;
 			} else {
 				/* Look at the next element */
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 7804a8c..c0bbfa2 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acresrc.h>
-#include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
 
 #define _COMPONENT          ACPI_RESOURCES
@@ -310,13 +309,12 @@
 			switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
 			case ACPI_TYPE_LOCAL_REFERENCE:
 
-				if (obj_desc->reference.opcode !=
-				    AML_INT_NAMEPATH_OP) {
+				if (obj_desc->reference.class !=
+				    ACPI_REFCLASS_NAME) {
 					ACPI_ERROR((AE_INFO,
-						    "(PRT[%X].Source) Need name, found reference op %X",
+						    "(PRT[%X].Source) Need name, found Reference Class %X",
 						    index,
-						    obj_desc->reference.
-						    opcode));
+						    obj_desc->reference.class));
 					return_ACPI_STATUS(AE_BAD_DATA);
 				}
 
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index f6f52c1..3196749 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -113,16 +113,16 @@
 
 
 	if (acpi_bus_trim(device, 1)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				"Removing device failed\n"));
+		printk(KERN_ERR PREFIX
+				"Removing device failed\n");
 		return -1;
 	}
 
 	/* power off device */
 	status = acpi_evaluate_object(handle, "_PS3", NULL, NULL);
 	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-				"Power-off device failed\n"));
+		printk(KERN_WARNING PREFIX
+				"Power-off device failed\n");
 
 	if (device->flags.lockable) {
 		arg_list.count = 1;
@@ -276,6 +276,13 @@
 {
 	const struct acpi_device_id *id;
 
+	/*
+	 * If the device is not present, it is unnecessary to load device
+	 * driver for it.
+	 */
+	if (!device->status.present)
+		return -ENODEV;
+
 	if (device->flags.hardware_id) {
 		for (id = ids; id->id[0]; id++) {
 			if (!strcmp((char*)id->id, device->pnp.hardware_id))
@@ -477,7 +484,7 @@
 
 	result = acpi_device_setup_files(device);
 	if(result)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error creating sysfs interface for device %s\n", device->dev.bus_id));
+		printk(KERN_ERR PREFIX "Error creating sysfs interface for device %s\n", device->dev.bus_id);
 
 	device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
 	return 0;
@@ -744,6 +751,16 @@
 	if (!acpi_match_device_ids(device, button_device_ids))
 		device->wakeup.flags.run_wake = 1;
 
+	/*
+	 * Don't set Power button GPE as run_wake
+	 * if Fixed Power button is used
+	 */
+	if (!strcmp(device->pnp.hardware_id, "PNP0C0C") &&
+		!(acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON)) {
+		device->wakeup.flags.run_wake = 0;
+		device->wakeup.flags.valid = 0;
+	}
+
       end:
 	if (ACPI_FAILURE(status))
 		device->flags.wake_capable = 0;
@@ -807,6 +824,7 @@
 	/* TBD: System wake support and resource requirements. */
 
 	device->power.state = ACPI_STATE_UNKNOWN;
+	acpi_bus_get_power(device->handle, &(device->power.state));
 
 	return 0;
 }
@@ -1153,20 +1171,6 @@
 }
 
 static int
-acpi_is_child_device(struct acpi_device *device,
-			int (*matcher)(struct acpi_device *))
-{
-	int result = -ENODEV;
-
-	do {
-		if (ACPI_SUCCESS(matcher(device)))
-			return AE_OK;
-	} while ((device = device->parent));
-
-	return result;
-}
-
-static int
 acpi_add_single_object(struct acpi_device **child,
 		       struct acpi_device *parent, acpi_handle handle, int type,
 			struct acpi_bus_ops *ops)
@@ -1221,15 +1225,18 @@
 			result = -ENODEV;
 			goto end;
 		}
-		if (!device->status.present) {
-			/* Bay and dock should be handled even if absent */
-			if (!ACPI_SUCCESS(
-			     acpi_is_child_device(device, acpi_bay_match)) &&
-			    !ACPI_SUCCESS(
-			     acpi_is_child_device(device, acpi_dock_match))) {
-					result = -ENODEV;
-					goto end;
-			}
+		/*
+		 * When the device is neither present nor functional, the
+		 * device should not be added to Linux ACPI device tree.
+		 * When the status of the device is not present but functinal,
+		 * it should be added to Linux ACPI tree. For example : bay
+		 * device , dock device.
+		 * In such conditions it is unncessary to check whether it is
+		 * bay device or dock device.
+		 */
+		if (!device->status.present && !device->status.functional) {
+			result = -ENODEV;
+			goto end;
 		}
 		break;
 	default:
@@ -1252,6 +1259,16 @@
 	acpi_device_set_id(device, parent, handle, type);
 
 	/*
+	 * The ACPI device is attached to acpi handle before getting
+	 * the power/wakeup/peformance flags. Otherwise OS can't get
+	 * the corresponding ACPI device by the acpi handle in the course
+	 * of getting the power/wakeup/performance flags.
+	 */
+	result = acpi_device_set_context(device, type);
+	if (result)
+		goto end;
+
+	/*
 	 * Power Management
 	 * ----------------
 	 */
@@ -1281,8 +1298,6 @@
 			goto end;
 	}
 
-	if ((result = acpi_device_set_context(device, type)))
-		goto end;
 
 	result = acpi_device_register(device, parent);
 
@@ -1402,7 +1417,12 @@
 		 * TBD: Need notifications and other detection mechanisms
 		 *      in place before we can fully implement this.
 		 */
-		if (child->status.present) {
+		 /*
+		 * When the device is not present but functional, it is also
+		 * necessary to scan the children of this device.
+		 */
+		if (child->status.present || (!child->status.present &&
+					child->status.functional)) {
 			status = acpi_get_next_object(ACPI_TYPE_ANY, chandle,
 						      NULL, NULL);
 			if (ACPI_SUCCESS(status)) {
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 91dec44..3eefd6d 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -387,8 +387,8 @@
 		goto end;
 
 	if (!(all_counters[index].flags & ACPI_EVENT_VALID)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-			"Can not change Invalid GPE/Fixed Event status\n"));
+		printk(KERN_WARNING PREFIX
+			"Can not change Invalid GPE/Fixed Event status\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index b22185f..18747ce 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -110,7 +110,6 @@
 acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 {
 	u32 i;
-	u32 length;
 	acpi_status status = AE_OK;
 
 	ACPI_FUNCTION_TRACE(tb_add_table);
@@ -145,25 +144,64 @@
 			}
 		}
 
-		length = ACPI_MIN(table_desc->length,
-				  acpi_gbl_root_table_list.tables[i].length);
-		if (ACPI_MEMCMP(table_desc->pointer,
-				acpi_gbl_root_table_list.tables[i].pointer,
-				length)) {
+		/*
+		 * Check for a table match on the entire table length,
+		 * not just the header.
+		 */
+		if (table_desc->length !=
+		    acpi_gbl_root_table_list.tables[i].length) {
 			continue;
 		}
 
-		/* Table is already registered */
+		if (ACPI_MEMCMP(table_desc->pointer,
+				acpi_gbl_root_table_list.tables[i].pointer,
+				acpi_gbl_root_table_list.tables[i].length)) {
+			continue;
+		}
 
+		/*
+		 * Note: the current mechanism does not unregister a table if it is
+		 * dynamically unloaded. The related namespace entries are deleted,
+		 * but the table remains in the root table list.
+		 *
+		 * The assumption here is that the number of different tables that
+		 * will be loaded is actually small, and there is minimal overhead
+		 * in just keeping the table in case it is needed again.
+		 *
+		 * If this assumption changes in the future (perhaps on large
+		 * machines with many table load/unload operations), tables will
+		 * need to be unregistered when they are unloaded, and slots in the
+		 * root table list should be reused when empty.
+		 */
+
+		/*
+		 * Table is already registered.
+		 * We can delete the table that was passed as a parameter.
+		 */
 		acpi_tb_delete_table(table_desc);
 		*table_index = i;
-		status = AE_ALREADY_EXISTS;
-		goto release;
+
+		if (acpi_gbl_root_table_list.tables[i].
+		    flags & ACPI_TABLE_IS_LOADED) {
+
+			/* Table is still loaded, this is an error */
+
+			status = AE_ALREADY_EXISTS;
+			goto release;
+		} else {
+			/* Table was unloaded, allow it to be reloaded */
+
+			table_desc->pointer =
+			    acpi_gbl_root_table_list.tables[i].pointer;
+			table_desc->address =
+			    acpi_gbl_root_table_list.tables[i].address;
+			status = AE_OK;
+			goto print_header;
+		}
 	}
 
-	/*
-	 * Add the table to the global table list
-	 */
+	/* Add the table to the global root table list */
+
 	status = acpi_tb_store_table(table_desc->address, table_desc->pointer,
 				     table_desc->length, table_desc->flags,
 				     table_index);
@@ -171,6 +209,7 @@
 		goto release;
 	}
 
+      print_header:
 	acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
 
       release:
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 9127036..263ec08 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1213,8 +1213,8 @@
 				  acpi_bus_private_data_handler,
 				  tz->thermal_zone);
 	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				"Error attaching device data\n"));
+		printk(KERN_ERR PREFIX
+				"Error attaching device data\n");
 		return -ENODEV;
 	}
 
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 7dcb67e..241c535 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -232,7 +232,7 @@
  * RETURN:      Status
  *
  * DESCRIPTION: Validate that the buffer is of the required length or
- *              allocate a new buffer.  Returned buffer is always zeroed.
+ *              allocate a new buffer. Returned buffer is always zeroed.
  *
  ******************************************************************************/
 
@@ -240,7 +240,7 @@
 acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 			  acpi_size required_length)
 {
-	acpi_status status = AE_OK;
+	acpi_size input_buffer_length;
 
 	/* Parameter validation */
 
@@ -248,55 +248,58 @@
 		return (AE_BAD_PARAMETER);
 	}
 
-	switch (buffer->length) {
+	/*
+	 * Buffer->Length is used as both an input and output parameter. Get the
+	 * input actual length and set the output required buffer length.
+	 */
+	input_buffer_length = buffer->length;
+	buffer->length = required_length;
+
+	/*
+	 * The input buffer length contains the actual buffer length, or the type
+	 * of buffer to be allocated by this routine.
+	 */
+	switch (input_buffer_length) {
 	case ACPI_NO_BUFFER:
 
-		/* Set the exception and returned the required length */
+		/* Return the exception (and the required buffer length) */
 
-		status = AE_BUFFER_OVERFLOW;
-		break;
+		return (AE_BUFFER_OVERFLOW);
 
 	case ACPI_ALLOCATE_BUFFER:
 
 		/* Allocate a new buffer */
 
 		buffer->pointer = acpi_os_allocate(required_length);
-		if (!buffer->pointer) {
-			return (AE_NO_MEMORY);
-		}
-
-		/* Clear the buffer */
-
-		ACPI_MEMSET(buffer->pointer, 0, required_length);
 		break;
 
 	case ACPI_ALLOCATE_LOCAL_BUFFER:
 
 		/* Allocate a new buffer with local interface to allow tracking */
 
-		buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length);
-		if (!buffer->pointer) {
-			return (AE_NO_MEMORY);
-		}
+		buffer->pointer = ACPI_ALLOCATE(required_length);
 		break;
 
 	default:
 
 		/* Existing buffer: Validate the size of the buffer */
 
-		if (buffer->length < required_length) {
-			status = AE_BUFFER_OVERFLOW;
-			break;
+		if (input_buffer_length < required_length) {
+			return (AE_BUFFER_OVERFLOW);
 		}
-
-		/* Clear the buffer */
-
-		ACPI_MEMSET(buffer->pointer, 0, required_length);
 		break;
 	}
 
-	buffer->length = required_length;
-	return (status);
+	/* Validate allocation from above or input buffer pointer */
+
+	if (!buffer->pointer) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Have a valid buffer, clear it */
+
+	ACPI_MEMSET(buffer->pointer, 0, required_length);
+	return (AE_OK);
 }
 
 #ifdef NOT_USED_BY_LINUX
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index 53499ac..5b2f7c2 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -42,7 +42,6 @@
  */
 
 #include <acpi/acpi.h>
-#include <acpi/amlcode.h>
 #include <acpi/acnamesp.h>
 
 
@@ -176,20 +175,24 @@
 
 		/* This is an object reference. */
 
-		switch (internal_object->reference.opcode) {
-		case AML_INT_NAMEPATH_OP:
+		switch (internal_object->reference.class) {
+		case ACPI_REFCLASS_NAME:
 
-			/* For namepath, return the object handle ("reference") */
-
-		default:
-
-			/* We are referring to the namespace node */
-
+			/*
+			 * For namepath, return the object handle ("reference")
+			 * We are referring to the namespace node
+			 */
 			external_object->reference.handle =
 			    internal_object->reference.node;
 			external_object->reference.actual_type =
 			    acpi_ns_get_type(internal_object->reference.node);
 			break;
+
+		default:
+
+			/* All other reference types are unsupported */
+
+			return_ACPI_STATUS(AE_TYPE);
 		}
 		break;
 
@@ -533,7 +536,7 @@
 
 		/* TBD: should validate incoming handle */
 
-		internal_object->reference.opcode = AML_INT_NAMEPATH_OP;
+		internal_object->reference.class = ACPI_REFCLASS_NAME;
 		internal_object->reference.node =
 		    external_object->reference.handle;
 		break;
@@ -743,11 +746,11 @@
 		 * We copied the reference object, so we now must add a reference
 		 * to the object pointed to by the reference
 		 *
-		 * DDBHandle reference (from Load/load_table is a special reference,
-		 * it's Reference.Object is the table index, so does not need to
+		 * DDBHandle reference (from Load/load_table) is a special reference,
+		 * it does not have a Reference.Object, so does not need to
 		 * increase the reference count
 		 */
-		if (source_desc->reference.opcode == AML_LOAD_OP) {
+		if (source_desc->reference.class == ACPI_REFCLASS_TABLE) {
 			break;
 		}
 
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 42609d3..d197c6b 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -45,7 +45,6 @@
 #include <acpi/acinterp.h>
 #include <acpi/acnamesp.h>
 #include <acpi/acevents.h>
-#include <acpi/amlcode.h>
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utdelete")
@@ -548,8 +547,8 @@
 			 * reference must track changes to the ref count of the index or
 			 * target object.
 			 */
-			if ((object->reference.opcode == AML_INDEX_OP) ||
-			    (object->reference.opcode == AML_INT_NAMEPATH_OP)) {
+			if ((object->reference.class == ACPI_REFCLASS_INDEX) ||
+			    (object->reference.class == ACPI_REFCLASS_NAME)) {
 				next_object = object->reference.object;
 			}
 			break;
@@ -586,6 +585,13 @@
 	ACPI_EXCEPTION((AE_INFO, status,
 			"Could not update object reference count"));
 
+	/* Free any stacked Update State objects */
+
+	while (state_list) {
+		state = acpi_ut_pop_generic_state(&state_list);
+		acpi_ut_delete_generic_state(state);
+	}
+
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index a6e71b8..670551b 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -281,7 +281,6 @@
 	/* ACPI_BITREG_RT_CLOCK_ENABLE      */ {ACPI_REGISTER_PM1_ENABLE,
 						ACPI_BITPOSITION_RT_CLOCK_ENABLE,
 						ACPI_BITMASK_RT_CLOCK_ENABLE},
-	/* ACPI_BITREG_WAKE_ENABLE          */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
 	/* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */ {ACPI_REGISTER_PM1_ENABLE,
 						ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
 						ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
@@ -575,6 +574,47 @@
 
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_get_reference_name
+ *
+ * PARAMETERS:  Object               - An ACPI reference object
+ *
+ * RETURN:      Pointer to a string
+ *
+ * DESCRIPTION: Decode a reference object sub-type to a string.
+ *
+ ******************************************************************************/
+
+/* Printable names of reference object sub-types */
+
+static const char *acpi_gbl_ref_class_names[] = {
+	/* 00 */ "Local",
+	/* 01 */ "Argument",
+	/* 02 */ "RefOf",
+	/* 03 */ "Index",
+	/* 04 */ "DdbHandle",
+	/* 05 */ "Named Object",
+	/* 06 */ "Debug"
+};
+
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
+{
+	if (!object)
+		return "NULL Object";
+
+	if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
+		return "Not an Operand object";
+
+	if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
+		return "Not a Reference object";
+
+	if (object->reference.class > ACPI_REFCLASS_MAX)
+		return "Unknown Reference class";
+
+	return acpi_gbl_ref_class_names[object->reference.class];
+}
+
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 /*
  * Strings and procedures used for debug only
@@ -677,14 +717,14 @@
  *
  * PARAMETERS:  None
  *
- * RETURN:      None
+ * RETURN:      Status
  *
  * DESCRIPTION: Init library globals.  All globals that require specific
  *              initialization should be initialized here!
  *
  ******************************************************************************/
 
-void acpi_ut_init_globals(void)
+acpi_status acpi_ut_init_globals(void)
 {
 	acpi_status status;
 	u32 i;
@@ -695,7 +735,7 @@
 
 	status = acpi_ut_create_caches();
 	if (ACPI_FAILURE(status)) {
-		return;
+		return_ACPI_STATUS(status);
 	}
 
 	/* Mutex locked flags */
@@ -772,8 +812,8 @@
 	acpi_gbl_display_final_mem_stats = FALSE;
 #endif
 
-	return_VOID;
+	return_ACPI_STATUS(AE_OK);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
-    ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index f34be67..9089a15 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -995,6 +995,15 @@
 							 state->pkg.
 							 this_target_obj, 0);
 			if (!state) {
+
+				/* Free any stacked Update State objects */
+
+				while (state_list) {
+					state =
+					    acpi_ut_pop_generic_state
+					    (&state_list);
+					acpi_ut_delete_generic_state(state);
+				}
 				return_ACPI_STATUS(AE_NO_MEMORY);
 			}
 		}
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index 916eff3..c354e7a 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -43,7 +43,6 @@
 
 #include <acpi/acpi.h>
 #include <acpi/acnamesp.h>
-#include <acpi/amlcode.h>
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utobject")
@@ -478,8 +477,8 @@
 
 	case ACPI_TYPE_LOCAL_REFERENCE:
 
-		switch (internal_object->reference.opcode) {
-		case AML_INT_NAMEPATH_OP:
+		switch (internal_object->reference.class) {
+		case ACPI_REFCLASS_NAME:
 
 			/*
 			 * Get the actual length of the full pathname to this object.
@@ -503,8 +502,10 @@
 			 * required eventually.
 			 */
 			ACPI_ERROR((AE_INFO,
-				    "Unsupported Reference opcode=%X in object %p",
-				    internal_object->reference.opcode,
+				    "Cannot convert to external object - "
+				    "unsupported Reference Class [%s] %X in object %p",
+				    acpi_ut_get_reference_name(internal_object),
+				    internal_object->reference.class,
 				    internal_object));
 			status = AE_TYPE;
 			break;
@@ -513,7 +514,9 @@
 
 	default:
 
-		ACPI_ERROR((AE_INFO, "Unsupported type=%X in object %p",
+		ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
+			    "unsupported type [%s] %X in object %p",
+			    acpi_ut_get_object_type_name(internal_object),
 			    ACPI_GET_OBJECT_TYPE(internal_object),
 			    internal_object));
 		status = AE_TYPE;
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index f8bdadf..c198a4d 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -81,7 +81,12 @@
 
 	/* Initialize all globals used by the subsystem */
 
-	acpi_ut_init_globals();
+	status = acpi_ut_init_globals();
+	if (ACPI_FAILURE(status)) {
+		ACPI_EXCEPTION((AE_INFO, status,
+				"During initialization of globals"));
+		return_ACPI_STATUS(status);
+	}
 
 	/* Create the default mutex objects */
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index e8a51a1..4ae39ee 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1530,8 +1530,8 @@
 						     acpi_video_device_notify,
 						     data);
 		if (ACPI_FAILURE(status)) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-					  "Error installing notify handler\n"));
+			printk(KERN_ERR PREFIX
+					  "Error installing notify handler\n");
 			if(data->brightness)
 				kfree(data->brightness->levels);
 			kfree(data->brightness);
@@ -1745,8 +1745,8 @@
 
 		status = acpi_video_bus_get_one_device(dev, video);
 		if (ACPI_FAILURE(status)) {
-			ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-					"Cant attach device"));
+			printk(KERN_WARNING PREFIX
+					"Cant attach device");
 			continue;
 		}
 	}
@@ -2003,8 +2003,8 @@
 					     ACPI_DEVICE_NOTIFY,
 					     acpi_video_bus_notify, video);
 	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Error installing notify handler\n"));
+		printk(KERN_ERR PREFIX
+				  "Error installing notify handler\n");
 		error = -ENODEV;
 		goto err_stop_video;
 	}
diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c
index cfe2c83..47cd7ba 100644
--- a/drivers/acpi/wmi.c
+++ b/drivers/acpi/wmi.c
@@ -217,6 +217,35 @@
 	return 0;
 }
 
+static acpi_status wmi_method_enable(struct wmi_block *wblock, int enable)
+{
+	struct guid_block *block = NULL;
+	char method[5];
+	struct acpi_object_list input;
+	union acpi_object params[1];
+	acpi_status status;
+	acpi_handle handle;
+
+	block = &wblock->gblock;
+	handle = wblock->handle;
+
+	if (!block)
+		return AE_NOT_EXIST;
+
+	input.count = 1;
+	input.pointer = params;
+	params[0].type = ACPI_TYPE_INTEGER;
+	params[0].integer.value = enable;
+
+	snprintf(method, 5, "WE%02X", block->notify_id);
+	status = acpi_evaluate_object(handle, method, &input, NULL);
+
+	if (status != AE_OK && status != AE_NOT_FOUND)
+		return status;
+	else
+		return AE_OK;
+}
+
 /*
  * Exported WMI functions
  */
@@ -242,7 +271,7 @@
 	char method[4] = "WM";
 
 	if (!find_guid(guid_string, &wblock))
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 
 	block = &wblock->gblock;
 	handle = wblock->handle;
@@ -304,7 +333,7 @@
 		return AE_BAD_PARAMETER;
 
 	if (!find_guid(guid_string, &wblock))
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 
 	block = &wblock->gblock;
 	handle = wblock->handle;
@@ -314,7 +343,7 @@
 
 	/* Check GUID is a data block */
 	if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 
 	input.count = 1;
 	input.pointer = wq_params;
@@ -385,7 +414,7 @@
 		return AE_BAD_DATA;
 
 	if (!find_guid(guid_string, &wblock))
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 
 	block = &wblock->gblock;
 	handle = wblock->handle;
@@ -395,7 +424,7 @@
 
 	/* Check GUID is a data block */
 	if (block->flags & (ACPI_WMI_EVENT | ACPI_WMI_METHOD))
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 
 	input.count = 2;
 	input.pointer = params;
@@ -427,6 +456,7 @@
 wmi_notify_handler handler, void *data)
 {
 	struct wmi_block *block;
+	acpi_status status;
 
 	if (!guid || !handler)
 		return AE_BAD_PARAMETER;
@@ -441,7 +471,9 @@
 	block->handler = handler;
 	block->handler_data = data;
 
-	return AE_OK;
+	status = wmi_method_enable(block, 1);
+
+	return status;
 }
 EXPORT_SYMBOL_GPL(wmi_install_notify_handler);
 
@@ -453,6 +485,7 @@
 acpi_status wmi_remove_notify_handler(const char *guid)
 {
 	struct wmi_block *block;
+	acpi_status status;
 
 	if (!guid)
 		return AE_BAD_PARAMETER;
@@ -464,10 +497,12 @@
 	if (!block->handler)
 		return AE_NULL_ENTRY;
 
+	status = wmi_method_enable(block, 0);
+
 	block->handler = NULL;
 	block->handler_data = NULL;
 
-	return AE_OK;
+	return status;
 }
 EXPORT_SYMBOL_GPL(wmi_remove_notify_handler);
 
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index a726f3b..6abb959 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -145,6 +145,7 @@
 	depends on NEW_LEDS
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on SERIO_I8042
+	depends on RFKILL
 	select ACPI_WMI
 	---help---
 	  This is a driver for newer Acer (and Wistron) laptops. It adds
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index d8b0d32..0532a2d 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -33,6 +33,8 @@
 #include <linux/platform_device.h>
 #include <linux/acpi.h>
 #include <linux/i8042.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
 #include <linux/debugfs.h>
 
 #include <acpi/acpi_drivers.h>
@@ -123,21 +125,15 @@
 
 static int max_brightness = 0xF;
 
-static int wireless = -1;
-static int bluetooth = -1;
 static int mailled = -1;
 static int brightness = -1;
 static int threeg = -1;
 static int force_series;
 
 module_param(mailled, int, 0444);
-module_param(wireless, int, 0444);
-module_param(bluetooth, int, 0444);
 module_param(brightness, int, 0444);
 module_param(threeg, int, 0444);
 module_param(force_series, int, 0444);
-MODULE_PARM_DESC(wireless, "Set initial state of Wireless hardware");
-MODULE_PARM_DESC(bluetooth, "Set initial state of Bluetooth hardware");
 MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
 MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
 MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
@@ -145,8 +141,6 @@
 
 struct acer_data {
 	int mailled;
-	int wireless;
-	int bluetooth;
 	int threeg;
 	int brightness;
 };
@@ -157,6 +151,9 @@
 	u32 wmid_devices;
 };
 
+static struct rfkill *wireless_rfkill;
+static struct rfkill *bluetooth_rfkill;
+
 /* Each low-level interface must define at least some of the following */
 struct wmi_interface {
 	/* The WMI device type */
@@ -476,7 +473,7 @@
 		}
 		break;
 	default:
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 	}
 	return AE_OK;
 }
@@ -514,7 +511,7 @@
 			break;
 		}
 	default:
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 	}
 
 	/* Actually do the set */
@@ -689,7 +686,7 @@
 			return 0;
 		}
 	default:
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 	}
 	status = WMI_execute_u32(method_id, 0, &result);
 
@@ -735,7 +732,7 @@
 		}
 		break;
 	default:
-		return AE_BAD_ADDRESS;
+		return AE_ERROR;
 	}
 	return WMI_execute_u32(method_id, (u32)value, NULL);
 }
@@ -785,7 +782,7 @@
 
 static acpi_status get_u32(u32 *value, u32 cap)
 {
-	acpi_status status = AE_BAD_ADDRESS;
+	acpi_status status = AE_ERROR;
 
 	switch (interface->type) {
 	case ACER_AMW0:
@@ -846,8 +843,6 @@
 	 * capability isn't available on the given interface
 	 */
 	set_u32(mailled, ACER_CAP_MAILLED);
-	set_u32(wireless, ACER_CAP_WIRELESS);
-	set_u32(bluetooth, ACER_CAP_BLUETOOTH);
 	set_u32(threeg, ACER_CAP_THREEG);
 	set_u32(brightness, ACER_CAP_BRIGHTNESS);
 }
@@ -933,40 +928,135 @@
 }
 
 /*
- * Read/ write bool sysfs macro
+ * Rfkill devices
  */
-#define show_set_bool(value, cap) \
-static ssize_t \
-show_bool_##value(struct device *dev, struct device_attribute *attr, \
-	char *buf) \
-{ \
-	u32 result; \
-	acpi_status status = get_u32(&result, cap); \
-	if (ACPI_SUCCESS(status)) \
-		return sprintf(buf, "%u\n", result); \
-	return sprintf(buf, "Read error\n"); \
-} \
-\
-static ssize_t \
-set_bool_##value(struct device *dev, struct device_attribute *attr, \
-	const char *buf, size_t count) \
-{ \
-	u32 tmp = simple_strtoul(buf, NULL, 10); \
-	acpi_status status = set_u32(tmp, cap); \
-		if (ACPI_FAILURE(status)) \
-			return -EINVAL; \
-	return count; \
-} \
-static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
-	show_bool_##value, set_bool_##value);
+static void acer_rfkill_update(struct work_struct *ignored);
+static DECLARE_DELAYED_WORK(acer_rfkill_work, acer_rfkill_update);
+static void acer_rfkill_update(struct work_struct *ignored)
+{
+	u32 state;
+	acpi_status status;
 
-show_set_bool(wireless, ACER_CAP_WIRELESS);
-show_set_bool(bluetooth, ACER_CAP_BLUETOOTH);
-show_set_bool(threeg, ACER_CAP_THREEG);
+	status = get_u32(&state, ACER_CAP_WIRELESS);
+	if (ACPI_SUCCESS(status))
+		rfkill_force_state(wireless_rfkill, state ?
+			RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED);
+
+	if (has_cap(ACER_CAP_BLUETOOTH)) {
+		status = get_u32(&state, ACER_CAP_BLUETOOTH);
+		if (ACPI_SUCCESS(status))
+			rfkill_force_state(bluetooth_rfkill, state ?
+				RFKILL_STATE_UNBLOCKED :
+				RFKILL_STATE_SOFT_BLOCKED);
+	}
+
+	schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
+}
+
+static int acer_rfkill_set(void *data, enum rfkill_state state)
+{
+	acpi_status status;
+	u32 *cap = data;
+	status = set_u32((u32) (state == RFKILL_STATE_UNBLOCKED), *cap);
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+	return 0;
+}
+
+static struct rfkill * acer_rfkill_register(struct device *dev,
+enum rfkill_type type, char *name, u32 cap)
+{
+	int err;
+	u32 state;
+	u32 *data;
+	struct rfkill *rfkill_dev;
+
+	rfkill_dev = rfkill_allocate(dev, type);
+	if (!rfkill_dev)
+		return ERR_PTR(-ENOMEM);
+	rfkill_dev->name = name;
+	get_u32(&state, cap);
+	rfkill_dev->state = state ? RFKILL_STATE_UNBLOCKED :
+		RFKILL_STATE_SOFT_BLOCKED;
+	data = kzalloc(sizeof(u32), GFP_KERNEL);
+	if (!data) {
+		rfkill_free(rfkill_dev);
+		return ERR_PTR(-ENOMEM);
+	}
+	*data = cap;
+	rfkill_dev->data = data;
+	rfkill_dev->toggle_radio = acer_rfkill_set;
+	rfkill_dev->user_claim_unsupported = 1;
+
+	err = rfkill_register(rfkill_dev);
+	if (err) {
+		kfree(rfkill_dev->data);
+		rfkill_free(rfkill_dev);
+		return ERR_PTR(err);
+	}
+	return rfkill_dev;
+}
+
+static int acer_rfkill_init(struct device *dev)
+{
+	wireless_rfkill = acer_rfkill_register(dev, RFKILL_TYPE_WLAN,
+		"acer-wireless", ACER_CAP_WIRELESS);
+	if (IS_ERR(wireless_rfkill))
+		return PTR_ERR(wireless_rfkill);
+
+	if (has_cap(ACER_CAP_BLUETOOTH)) {
+		bluetooth_rfkill = acer_rfkill_register(dev,
+			RFKILL_TYPE_BLUETOOTH, "acer-bluetooth",
+			ACER_CAP_BLUETOOTH);
+		if (IS_ERR(bluetooth_rfkill)) {
+			kfree(wireless_rfkill->data);
+			rfkill_unregister(wireless_rfkill);
+			return PTR_ERR(bluetooth_rfkill);
+		}
+	}
+
+	schedule_delayed_work(&acer_rfkill_work, round_jiffies_relative(HZ));
+
+	return 0;
+}
+
+static void acer_rfkill_exit(void)
+{
+	cancel_delayed_work_sync(&acer_rfkill_work);
+	kfree(wireless_rfkill->data);
+	rfkill_unregister(wireless_rfkill);
+	if (has_cap(ACER_CAP_BLUETOOTH)) {
+		kfree(wireless_rfkill->data);
+		rfkill_unregister(bluetooth_rfkill);
+	}
+	return;
+}
 
 /*
- * Read interface sysfs macro
+ * sysfs interface
  */
+static ssize_t show_bool_threeg(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	u32 result; \
+	acpi_status status = get_u32(&result, ACER_CAP_THREEG);
+	if (ACPI_SUCCESS(status))
+		return sprintf(buf, "%u\n", result);
+	return sprintf(buf, "Read error\n");
+}
+
+static ssize_t set_bool_threeg(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	u32 tmp = simple_strtoul(buf, NULL, 10);
+	acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
+		if (ACPI_FAILURE(status))
+			return -EINVAL;
+	return count;
+}
+static DEVICE_ATTR(threeg, S_IWUGO | S_IRUGO | S_IWUSR, show_bool_threeg,
+	set_bool_threeg);
+
 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
 	char *buf)
 {
@@ -1026,7 +1116,9 @@
 			goto error_brightness;
 	}
 
-	return 0;
+	err = acer_rfkill_init(&device->dev);
+
+	return err;
 
 error_brightness:
 	acer_led_exit();
@@ -1040,6 +1132,8 @@
 		acer_led_exit();
 	if (has_cap(ACER_CAP_BRIGHTNESS))
 		acer_backlight_exit();
+
+	acer_rfkill_exit();
 	return 0;
 }
 
@@ -1052,16 +1146,6 @@
 	if (!data)
 		return -ENOMEM;
 
-	if (has_cap(ACER_CAP_WIRELESS)) {
-		get_u32(&value, ACER_CAP_WIRELESS);
-		data->wireless = value;
-	}
-
-	if (has_cap(ACER_CAP_BLUETOOTH)) {
-		get_u32(&value, ACER_CAP_BLUETOOTH);
-		data->bluetooth = value;
-	}
-
 	if (has_cap(ACER_CAP_MAILLED)) {
 		get_u32(&value, ACER_CAP_MAILLED);
 		data->mailled = value;
@@ -1082,15 +1166,6 @@
 	if (!data)
 		return -ENOMEM;
 
-	if (has_cap(ACER_CAP_WIRELESS))
-		set_u32(data->wireless, ACER_CAP_WIRELESS);
-
-	if (has_cap(ACER_CAP_BLUETOOTH))
-		set_u32(data->bluetooth, ACER_CAP_BLUETOOTH);
-
-	if (has_cap(ACER_CAP_THREEG))
-		set_u32(data->threeg, ACER_CAP_THREEG);
-
 	if (has_cap(ACER_CAP_MAILLED))
 		set_u32(data->mailled, ACER_CAP_MAILLED);
 
@@ -1115,12 +1190,6 @@
 
 static int remove_sysfs(struct platform_device *device)
 {
-	if (has_cap(ACER_CAP_WIRELESS))
-		device_remove_file(&device->dev, &dev_attr_wireless);
-
-	if (has_cap(ACER_CAP_BLUETOOTH))
-		device_remove_file(&device->dev, &dev_attr_bluetooth);
-
 	if (has_cap(ACER_CAP_THREEG))
 		device_remove_file(&device->dev, &dev_attr_threeg);
 
@@ -1133,20 +1202,6 @@
 {
 	int retval = -ENOMEM;
 
-	if (has_cap(ACER_CAP_WIRELESS)) {
-		retval = device_create_file(&acer_platform_device->dev,
-			&dev_attr_wireless);
-		if (retval)
-			goto error_sysfs;
-	}
-
-	if (has_cap(ACER_CAP_BLUETOOTH)) {
-		retval = device_create_file(&acer_platform_device->dev,
-			&dev_attr_bluetooth);
-		if (retval)
-			goto error_sysfs;
-	}
-
 	if (has_cap(ACER_CAP_THREEG)) {
 		retval = device_create_file(&acer_platform_device->dev,
 			&dev_attr_threeg);
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index c1b9ea3..98b9df7 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -148,9 +148,13 @@
 	acpi_status status;
 	struct pnp_dev *dev;
 
+	/*
+	 * If a PnPacpi device is not present , the device
+	 * driver should not be loaded.
+	 */
 	status = acpi_get_handle(device->handle, "_CRS", &temp);
 	if (ACPI_FAILURE(status) || !ispnpidacpi(acpi_device_hid(device)) ||
-	    is_exclusive_device(device))
+	    is_exclusive_device(device) || (!device->status.present))
 		return 0;
 
 	dev = pnp_alloc_dev(&pnpacpi_protocol, num, acpi_device_hid(device));
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 4eb75a8..29feee2 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -63,7 +63,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION 		0x20080609
+#define ACPI_CA_VERSION                 0x20080926
 
 /*
  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
diff --git a/include/acpi/acdebug.h b/include/acpi/acdebug.h
index c5a1b50..62c59df 100644
--- a/include/acpi/acdebug.h
+++ b/include/acpi/acdebug.h
@@ -123,6 +123,10 @@
 
 void acpi_db_generate_gpe(char *gpe_arg, char *block_arg);
 
+void acpi_db_check_predefined_names(void);
+
+void acpi_db_batch_execute(void);
+
 /*
  * dbdisply - debug display commands
  */
@@ -150,6 +154,10 @@
 acpi_db_display_argument_object(union acpi_operand_object *obj_desc,
 				struct acpi_walk_state *walk_state);
 
+void acpi_db_check_predefined_names(void);
+
+void acpi_db_batch_execute(void);
+
 /*
  * dbexec - debugger control method execution
  */
diff --git a/include/acpi/acdisasm.h b/include/acpi/acdisasm.h
index f53faca..0c1ed38 100644
--- a/include/acpi/acdisasm.h
+++ b/include/acpi/acdisasm.h
@@ -186,6 +186,8 @@
 extern struct acpi_dmtable_info acpi_dm_table_info_madt6[];
 extern struct acpi_dmtable_info acpi_dm_table_info_madt7[];
 extern struct acpi_dmtable_info acpi_dm_table_info_madt8[];
+extern struct acpi_dmtable_info acpi_dm_table_info_madt9[];
+extern struct acpi_dmtable_info acpi_dm_table_info_madt10[];
 extern struct acpi_dmtable_info acpi_dm_table_info_madt_hdr[];
 extern struct acpi_dmtable_info acpi_dm_table_info_mcfg[];
 extern struct acpi_dmtable_info acpi_dm_table_info_mcfg0[];
@@ -197,8 +199,10 @@
 extern struct acpi_dmtable_info acpi_dm_table_info_spcr[];
 extern struct acpi_dmtable_info acpi_dm_table_info_spmi[];
 extern struct acpi_dmtable_info acpi_dm_table_info_srat[];
+extern struct acpi_dmtable_info acpi_dm_table_info_srat_hdr[];
 extern struct acpi_dmtable_info acpi_dm_table_info_srat0[];
 extern struct acpi_dmtable_info acpi_dm_table_info_srat1[];
+extern struct acpi_dmtable_info acpi_dm_table_info_srat2[];
 extern struct acpi_dmtable_info acpi_dm_table_info_tcpa[];
 extern struct acpi_dmtable_info acpi_dm_table_info_wdrt[];
 
diff --git a/include/acpi/acdispat.h b/include/acpi/acdispat.h
index 21a73a1..6291904 100644
--- a/include/acpi/acdispat.h
+++ b/include/acpi/acdispat.h
@@ -157,7 +157,7 @@
  * dsmthdat - method data (locals/args)
  */
 acpi_status
-acpi_ds_store_object_to_local(u16 opcode,
+acpi_ds_store_object_to_local(u8 type,
 			      u32 index,
 			      union acpi_operand_object *src_desc,
 			      struct acpi_walk_state *walk_state);
@@ -173,7 +173,7 @@
 u8 acpi_ds_is_method_value(union acpi_operand_object *obj_desc);
 
 acpi_status
-acpi_ds_method_data_get_value(u16 opcode,
+acpi_ds_method_data_get_value(u8 type,
 			      u32 index,
 			      struct acpi_walk_state *walk_state,
 			      union acpi_operand_object **dest_desc);
@@ -184,7 +184,7 @@
 			      struct acpi_walk_state *walk_state);
 
 acpi_status
-acpi_ds_method_data_get_node(u16 opcode,
+acpi_ds_method_data_get_node(u8 type,
 			     u32 index,
 			     struct acpi_walk_state *walk_state,
 			     struct acpi_namespace_node **node);
diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index e5a890f..84f5cb2 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -76,25 +76,21 @@
 #define AE_STACK_OVERFLOW               (acpi_status) (0x000C | AE_CODE_ENVIRONMENTAL)
 #define AE_STACK_UNDERFLOW              (acpi_status) (0x000D | AE_CODE_ENVIRONMENTAL)
 #define AE_NOT_IMPLEMENTED              (acpi_status) (0x000E | AE_CODE_ENVIRONMENTAL)
-#define AE_VERSION_MISMATCH             (acpi_status) (0x000F | AE_CODE_ENVIRONMENTAL)
-#define AE_SUPPORT                      (acpi_status) (0x0010 | AE_CODE_ENVIRONMENTAL)
-#define AE_SHARE                        (acpi_status) (0x0011 | AE_CODE_ENVIRONMENTAL)
-#define AE_LIMIT                        (acpi_status) (0x0012 | AE_CODE_ENVIRONMENTAL)
-#define AE_TIME                         (acpi_status) (0x0013 | AE_CODE_ENVIRONMENTAL)
-#define AE_UNKNOWN_STATUS               (acpi_status) (0x0014 | AE_CODE_ENVIRONMENTAL)
-#define AE_ACQUIRE_DEADLOCK             (acpi_status) (0x0015 | AE_CODE_ENVIRONMENTAL)
-#define AE_RELEASE_DEADLOCK             (acpi_status) (0x0016 | AE_CODE_ENVIRONMENTAL)
-#define AE_NOT_ACQUIRED                 (acpi_status) (0x0017 | AE_CODE_ENVIRONMENTAL)
-#define AE_ALREADY_ACQUIRED             (acpi_status) (0x0018 | AE_CODE_ENVIRONMENTAL)
-#define AE_NO_HARDWARE_RESPONSE         (acpi_status) (0x0019 | AE_CODE_ENVIRONMENTAL)
-#define AE_NO_GLOBAL_LOCK               (acpi_status) (0x001A | AE_CODE_ENVIRONMENTAL)
-#define AE_LOGICAL_ADDRESS              (acpi_status) (0x001B | AE_CODE_ENVIRONMENTAL)
-#define AE_ABORT_METHOD                 (acpi_status) (0x001C | AE_CODE_ENVIRONMENTAL)
-#define AE_SAME_HANDLER                 (acpi_status) (0x001D | AE_CODE_ENVIRONMENTAL)
-#define AE_WAKE_ONLY_GPE                (acpi_status) (0x001E | AE_CODE_ENVIRONMENTAL)
-#define AE_OWNER_ID_LIMIT               (acpi_status) (0x001F | AE_CODE_ENVIRONMENTAL)
+#define AE_SUPPORT                      (acpi_status) (0x000F | AE_CODE_ENVIRONMENTAL)
+#define AE_LIMIT                        (acpi_status) (0x0010 | AE_CODE_ENVIRONMENTAL)
+#define AE_TIME                         (acpi_status) (0x0011 | AE_CODE_ENVIRONMENTAL)
+#define AE_ACQUIRE_DEADLOCK             (acpi_status) (0x0012 | AE_CODE_ENVIRONMENTAL)
+#define AE_RELEASE_DEADLOCK             (acpi_status) (0x0013 | AE_CODE_ENVIRONMENTAL)
+#define AE_NOT_ACQUIRED                 (acpi_status) (0x0014 | AE_CODE_ENVIRONMENTAL)
+#define AE_ALREADY_ACQUIRED             (acpi_status) (0x0015 | AE_CODE_ENVIRONMENTAL)
+#define AE_NO_HARDWARE_RESPONSE         (acpi_status) (0x0016 | AE_CODE_ENVIRONMENTAL)
+#define AE_NO_GLOBAL_LOCK               (acpi_status) (0x0017 | AE_CODE_ENVIRONMENTAL)
+#define AE_ABORT_METHOD                 (acpi_status) (0x0018 | AE_CODE_ENVIRONMENTAL)
+#define AE_SAME_HANDLER                 (acpi_status) (0x0019 | AE_CODE_ENVIRONMENTAL)
+#define AE_WAKE_ONLY_GPE                (acpi_status) (0x001A | AE_CODE_ENVIRONMENTAL)
+#define AE_OWNER_ID_LIMIT               (acpi_status) (0x001B | AE_CODE_ENVIRONMENTAL)
 
-#define AE_CODE_ENV_MAX                 0x001F
+#define AE_CODE_ENV_MAX                 0x001B
 
 /*
  * Programmer exceptions
@@ -103,14 +99,12 @@
 #define AE_BAD_CHARACTER                (acpi_status) (0x0002 | AE_CODE_PROGRAMMER)
 #define AE_BAD_PATHNAME                 (acpi_status) (0x0003 | AE_CODE_PROGRAMMER)
 #define AE_BAD_DATA                     (acpi_status) (0x0004 | AE_CODE_PROGRAMMER)
-#define AE_BAD_ADDRESS                  (acpi_status) (0x0005 | AE_CODE_PROGRAMMER)
-#define AE_ALIGNMENT                    (acpi_status) (0x0006 | AE_CODE_PROGRAMMER)
-#define AE_BAD_HEX_CONSTANT             (acpi_status) (0x0007 | AE_CODE_PROGRAMMER)
-#define AE_BAD_OCTAL_CONSTANT           (acpi_status) (0x0008 | AE_CODE_PROGRAMMER)
-#define AE_BAD_DECIMAL_CONSTANT         (acpi_status) (0x0009 | AE_CODE_PROGRAMMER)
-#define AE_MISSING_ARGUMENTS		(acpi_status) (0x000A | AE_CODE_PROGRAMMER)
+#define AE_BAD_HEX_CONSTANT             (acpi_status) (0x0005 | AE_CODE_PROGRAMMER)
+#define AE_BAD_OCTAL_CONSTANT           (acpi_status) (0x0006 | AE_CODE_PROGRAMMER)
+#define AE_BAD_DECIMAL_CONSTANT         (acpi_status) (0x0007 | AE_CODE_PROGRAMMER)
+#define AE_MISSING_ARGUMENTS            (acpi_status) (0x0008 | AE_CODE_PROGRAMMER)
 
-#define AE_CODE_PGM_MAX 		0x000A
+#define AE_CODE_PGM_MAX                 0x0008
 
 /*
  * Acpi table exceptions
@@ -119,51 +113,48 @@
 #define AE_BAD_HEADER                   (acpi_status) (0x0002 | AE_CODE_ACPI_TABLES)
 #define AE_BAD_CHECKSUM                 (acpi_status) (0x0003 | AE_CODE_ACPI_TABLES)
 #define AE_BAD_VALUE                    (acpi_status) (0x0004 | AE_CODE_ACPI_TABLES)
-#define AE_TABLE_NOT_SUPPORTED          (acpi_status) (0x0005 | AE_CODE_ACPI_TABLES)
-#define AE_INVALID_TABLE_LENGTH         (acpi_status) (0x0006 | AE_CODE_ACPI_TABLES)
+#define AE_INVALID_TABLE_LENGTH         (acpi_status) (0x0005 | AE_CODE_ACPI_TABLES)
 
-#define AE_CODE_TBL_MAX                 0x0006
+#define AE_CODE_TBL_MAX                 0x0005
 
 /*
  * AML exceptions.  These are caused by problems with
  * the actual AML byte stream
  */
-#define AE_AML_ERROR                    (acpi_status) (0x0001 | AE_CODE_AML)
-#define AE_AML_PARSE                    (acpi_status) (0x0002 | AE_CODE_AML)
-#define AE_AML_BAD_OPCODE               (acpi_status) (0x0003 | AE_CODE_AML)
-#define AE_AML_NO_OPERAND               (acpi_status) (0x0004 | AE_CODE_AML)
-#define AE_AML_OPERAND_TYPE             (acpi_status) (0x0005 | AE_CODE_AML)
-#define AE_AML_OPERAND_VALUE            (acpi_status) (0x0006 | AE_CODE_AML)
-#define AE_AML_UNINITIALIZED_LOCAL      (acpi_status) (0x0007 | AE_CODE_AML)
-#define AE_AML_UNINITIALIZED_ARG        (acpi_status) (0x0008 | AE_CODE_AML)
-#define AE_AML_UNINITIALIZED_ELEMENT    (acpi_status) (0x0009 | AE_CODE_AML)
-#define AE_AML_NUMERIC_OVERFLOW         (acpi_status) (0x000A | AE_CODE_AML)
-#define AE_AML_REGION_LIMIT             (acpi_status) (0x000B | AE_CODE_AML)
-#define AE_AML_BUFFER_LIMIT             (acpi_status) (0x000C | AE_CODE_AML)
-#define AE_AML_PACKAGE_LIMIT            (acpi_status) (0x000D | AE_CODE_AML)
-#define AE_AML_DIVIDE_BY_ZERO           (acpi_status) (0x000E | AE_CODE_AML)
-#define AE_AML_BAD_NAME                 (acpi_status) (0x000F | AE_CODE_AML)
-#define AE_AML_NAME_NOT_FOUND           (acpi_status) (0x0010 | AE_CODE_AML)
-#define AE_AML_INTERNAL                 (acpi_status) (0x0011 | AE_CODE_AML)
-#define AE_AML_INVALID_SPACE_ID         (acpi_status) (0x0012 | AE_CODE_AML)
-#define AE_AML_STRING_LIMIT             (acpi_status) (0x0013 | AE_CODE_AML)
-#define AE_AML_NO_RETURN_VALUE          (acpi_status) (0x0014 | AE_CODE_AML)
-#define AE_AML_METHOD_LIMIT             (acpi_status) (0x0015 | AE_CODE_AML)
-#define AE_AML_NOT_OWNER                (acpi_status) (0x0016 | AE_CODE_AML)
-#define AE_AML_MUTEX_ORDER              (acpi_status) (0x0017 | AE_CODE_AML)
-#define AE_AML_MUTEX_NOT_ACQUIRED       (acpi_status) (0x0018 | AE_CODE_AML)
-#define AE_AML_INVALID_RESOURCE_TYPE    (acpi_status) (0x0019 | AE_CODE_AML)
-#define AE_AML_INVALID_INDEX            (acpi_status) (0x001A | AE_CODE_AML)
-#define AE_AML_REGISTER_LIMIT           (acpi_status) (0x001B | AE_CODE_AML)
-#define AE_AML_NO_WHILE                 (acpi_status) (0x001C | AE_CODE_AML)
-#define AE_AML_ALIGNMENT                (acpi_status) (0x001D | AE_CODE_AML)
-#define AE_AML_NO_RESOURCE_END_TAG      (acpi_status) (0x001E | AE_CODE_AML)
-#define AE_AML_BAD_RESOURCE_VALUE       (acpi_status) (0x001F | AE_CODE_AML)
-#define AE_AML_CIRCULAR_REFERENCE       (acpi_status) (0x0020 | AE_CODE_AML)
-#define AE_AML_BAD_RESOURCE_LENGTH      (acpi_status) (0x0021 | AE_CODE_AML)
-#define AE_AML_ILLEGAL_ADDRESS          (acpi_status) (0x0022 | AE_CODE_AML)
+#define AE_AML_BAD_OPCODE               (acpi_status) (0x0001 | AE_CODE_AML)
+#define AE_AML_NO_OPERAND               (acpi_status) (0x0002 | AE_CODE_AML)
+#define AE_AML_OPERAND_TYPE             (acpi_status) (0x0003 | AE_CODE_AML)
+#define AE_AML_OPERAND_VALUE            (acpi_status) (0x0004 | AE_CODE_AML)
+#define AE_AML_UNINITIALIZED_LOCAL      (acpi_status) (0x0005 | AE_CODE_AML)
+#define AE_AML_UNINITIALIZED_ARG        (acpi_status) (0x0006 | AE_CODE_AML)
+#define AE_AML_UNINITIALIZED_ELEMENT    (acpi_status) (0x0007 | AE_CODE_AML)
+#define AE_AML_NUMERIC_OVERFLOW         (acpi_status) (0x0008 | AE_CODE_AML)
+#define AE_AML_REGION_LIMIT             (acpi_status) (0x0009 | AE_CODE_AML)
+#define AE_AML_BUFFER_LIMIT             (acpi_status) (0x000A | AE_CODE_AML)
+#define AE_AML_PACKAGE_LIMIT            (acpi_status) (0x000B | AE_CODE_AML)
+#define AE_AML_DIVIDE_BY_ZERO           (acpi_status) (0x000C | AE_CODE_AML)
+#define AE_AML_BAD_NAME                 (acpi_status) (0x000D | AE_CODE_AML)
+#define AE_AML_NAME_NOT_FOUND           (acpi_status) (0x000E | AE_CODE_AML)
+#define AE_AML_INTERNAL                 (acpi_status) (0x000F | AE_CODE_AML)
+#define AE_AML_INVALID_SPACE_ID         (acpi_status) (0x0010 | AE_CODE_AML)
+#define AE_AML_STRING_LIMIT             (acpi_status) (0x0011 | AE_CODE_AML)
+#define AE_AML_NO_RETURN_VALUE          (acpi_status) (0x0012 | AE_CODE_AML)
+#define AE_AML_METHOD_LIMIT             (acpi_status) (0x0013 | AE_CODE_AML)
+#define AE_AML_NOT_OWNER                (acpi_status) (0x0014 | AE_CODE_AML)
+#define AE_AML_MUTEX_ORDER              (acpi_status) (0x0015 | AE_CODE_AML)
+#define AE_AML_MUTEX_NOT_ACQUIRED       (acpi_status) (0x0016 | AE_CODE_AML)
+#define AE_AML_INVALID_RESOURCE_TYPE    (acpi_status) (0x0017 | AE_CODE_AML)
+#define AE_AML_INVALID_INDEX            (acpi_status) (0x0018 | AE_CODE_AML)
+#define AE_AML_REGISTER_LIMIT           (acpi_status) (0x0019 | AE_CODE_AML)
+#define AE_AML_NO_WHILE                 (acpi_status) (0x001A | AE_CODE_AML)
+#define AE_AML_ALIGNMENT                (acpi_status) (0x001B | AE_CODE_AML)
+#define AE_AML_NO_RESOURCE_END_TAG      (acpi_status) (0x001C | AE_CODE_AML)
+#define AE_AML_BAD_RESOURCE_VALUE       (acpi_status) (0x001D | AE_CODE_AML)
+#define AE_AML_CIRCULAR_REFERENCE       (acpi_status) (0x001E | AE_CODE_AML)
+#define AE_AML_BAD_RESOURCE_LENGTH      (acpi_status) (0x001F | AE_CODE_AML)
+#define AE_AML_ILLEGAL_ADDRESS          (acpi_status) (0x0020 | AE_CODE_AML)
 
-#define AE_CODE_AML_MAX                 0x0022
+#define AE_CODE_AML_MAX                 0x0020
 
 /*
  * Internal exceptions used for control
@@ -206,19 +197,15 @@
 	"AE_STACK_OVERFLOW",
 	"AE_STACK_UNDERFLOW",
 	"AE_NOT_IMPLEMENTED",
-	"AE_VERSION_MISMATCH",
 	"AE_SUPPORT",
-	"AE_SHARE",
 	"AE_LIMIT",
 	"AE_TIME",
-	"AE_UNKNOWN_STATUS",
 	"AE_ACQUIRE_DEADLOCK",
 	"AE_RELEASE_DEADLOCK",
 	"AE_NOT_ACQUIRED",
 	"AE_ALREADY_ACQUIRED",
 	"AE_NO_HARDWARE_RESPONSE",
 	"AE_NO_GLOBAL_LOCK",
-	"AE_LOGICAL_ADDRESS",
 	"AE_ABORT_METHOD",
 	"AE_SAME_HANDLER",
 	"AE_WAKE_ONLY_GPE",
@@ -231,8 +218,6 @@
 	"AE_BAD_CHARACTER",
 	"AE_BAD_PATHNAME",
 	"AE_BAD_DATA",
-	"AE_BAD_ADDRESS",
-	"AE_ALIGNMENT",
 	"AE_BAD_HEX_CONSTANT",
 	"AE_BAD_OCTAL_CONSTANT",
 	"AE_BAD_DECIMAL_CONSTANT",
@@ -245,14 +230,11 @@
 	"AE_BAD_HEADER",
 	"AE_BAD_CHECKSUM",
 	"AE_BAD_VALUE",
-	"AE_TABLE_NOT_SUPPORTED",
 	"AE_INVALID_TABLE_LENGTH"
 };
 
 char const *acpi_gbl_exception_names_aml[] = {
 	NULL,
-	"AE_AML_ERROR",
-	"AE_AML_PARSE",
 	"AE_AML_BAD_OPCODE",
 	"AE_AML_NO_OPERAND",
 	"AE_AML_OPERAND_TYPE",
@@ -284,7 +266,7 @@
 	"AE_AML_BAD_RESOURCE_VALUE",
 	"AE_AML_CIRCULAR_REFERENCE",
 	"AE_AML_BAD_RESOURCE_LENGTH",
-	"AE_AML_ILLEGAL_ADDRESS"
+	"AE_AML_ILLEGAL_ADDRESS",
 };
 
 char const *acpi_gbl_exception_names_ctrl[] = {
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index b221c85..ecab527 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -208,6 +208,7 @@
 #define ANOBJ_METHOD_ARG                0x04	/* Node is a method argument */
 #define ANOBJ_METHOD_LOCAL              0x08	/* Node is a method local */
 #define ANOBJ_SUBTREE_HAS_INI           0x10	/* Used to optimize device initialization */
+#define ANOBJ_EVALUATED                 0x20	/* Set on first evaluation of node */
 
 #define ANOBJ_IS_EXTERNAL               0x08	/* i_aSL only: This object created via External() */
 #define ANOBJ_METHOD_NO_RETVAL          0x10	/* i_aSL only: Method has no return value */
@@ -340,6 +341,82 @@
 #define ACPI_BTYPE_OBJECTS_AND_REFS     0x0001FFFF	/* ARG or LOCAL */
 #define ACPI_BTYPE_ALL_OBJECTS          0x0000FFFF
 
+/*
+ * Information structure for ACPI predefined names.
+ * Each entry in the table contains the following items:
+ *
+ * Name                 - The ACPI reserved name
+ * param_count          - Number of arguments to the method
+ * expected_return_btypes - Allowed type(s) for the return value
+ */
+struct acpi_name_info {
+	char name[ACPI_NAME_SIZE];
+	u8 param_count;
+	u8 expected_btypes;
+};
+
+/*
+ * Secondary information structures for ACPI predefined objects that return
+ * package objects. This structure appears as the next entry in the table
+ * after the NAME_INFO structure above.
+ *
+ * The reason for this is to minimize the size of the predefined name table.
+ */
+
+/*
+ * Used for ACPI_PTYPE1_FIXED, ACPI_PTYPE1_VAR, ACPI_PTYPE2,
+ * ACPI_PTYPE2_MIN, ACPI_PTYPE2_PKG_COUNT, ACPI_PTYPE2_COUNT
+ */
+struct acpi_package_info {
+	u8 type;
+	u8 object_type1;
+	u8 count1;
+	u8 object_type2;
+	u8 count2;
+	u8 reserved;
+};
+
+/* Used for ACPI_PTYPE2_FIXED */
+
+struct acpi_package_info2 {
+	u8 type;
+	u8 count;
+	u8 object_type[4];
+};
+
+/* Used for ACPI_PTYPE1_OPTION */
+
+struct acpi_package_info3 {
+	u8 type;
+	u8 count;
+	u8 object_type[2];
+	u8 tail_object_type;
+	u8 reserved;
+};
+
+union acpi_predefined_info {
+	struct acpi_name_info info;
+	struct acpi_package_info ret_info;
+	struct acpi_package_info2 ret_info2;
+	struct acpi_package_info3 ret_info3;
+};
+
+/*
+ * Bitmapped return value types
+ * Note: the actual data types must be contiguous, a loop in nspredef.c
+ * depends on this.
+ */
+#define ACPI_RTYPE_ANY                  0x00
+#define ACPI_RTYPE_NONE                 0x01
+#define ACPI_RTYPE_INTEGER              0x02
+#define ACPI_RTYPE_STRING               0x04
+#define ACPI_RTYPE_BUFFER               0x08
+#define ACPI_RTYPE_PACKAGE              0x10
+#define ACPI_RTYPE_REFERENCE            0x20
+#define ACPI_RTYPE_ALL                  0x3F
+
+#define ACPI_NUM_RTYPES                 5	/* Number of actual object types */
+
 /*****************************************************************************
  *
  * Event typedefs and structs
diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h
index 57ab9e9..a1e3240 100644
--- a/include/acpi/acmacros.h
+++ b/include/acpi/acmacros.h
@@ -62,7 +62,7 @@
 #define ACPI_ARRAY_LENGTH(x)            (sizeof(x) / sizeof((x)[0]))
 
 /*
- * Extract data using a pointer.  Any more than a byte and we
+ * Extract data using a pointer. Any more than a byte and we
  * get into potential aligment issues -- see the STORE macros below.
  * Use with care.
  */
@@ -80,21 +80,21 @@
  */
 #define ACPI_CAST_PTR(t, p)             ((t *) (acpi_uintptr_t) (p))
 #define ACPI_CAST_INDIRECT_PTR(t, p)    ((t **) (acpi_uintptr_t) (p))
-#define ACPI_ADD_PTR(t, a, b)		ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8,(a)) + (acpi_size)(b)))
-#define ACPI_PTR_DIFF(a, b)		(acpi_size) (ACPI_CAST_PTR (u8,(a)) - ACPI_CAST_PTR (u8,(b)))
+#define ACPI_ADD_PTR(t, a, b)		ACPI_CAST_PTR (t, (ACPI_CAST_PTR (u8, (a)) + (acpi_size)(b)))
+#define ACPI_PTR_DIFF(a, b)		(acpi_size) (ACPI_CAST_PTR (u8, (a)) - ACPI_CAST_PTR (u8, (b)))
 
 /* Pointer/Integer type conversions */
 
 #define ACPI_TO_POINTER(i)		ACPI_ADD_PTR (void, (void *) NULL, (acpi_size) i)
-#define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p,(void *) NULL)
-#define ACPI_OFFSET(d,f)                (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f),(void *) NULL)
+#define ACPI_TO_INTEGER(p)              ACPI_PTR_DIFF (p, (void *) NULL)
+#define ACPI_OFFSET(d, f)               (acpi_size) ACPI_PTR_DIFF (&(((d *)0)->f), (void *) NULL)
 #define ACPI_PHYSADDR_TO_PTR(i)         ACPI_TO_POINTER(i)
 #define ACPI_PTR_TO_PHYSADDR(i)         ACPI_TO_INTEGER(i)
 
 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
-#define ACPI_COMPARE_NAME(a,b)          (*ACPI_CAST_PTR (u32,(a)) == *ACPI_CAST_PTR (u32,(b)))
+#define ACPI_COMPARE_NAME(a, b)         (*ACPI_CAST_PTR (u32, (a)) == *ACPI_CAST_PTR (u32, (b)))
 #else
-#define ACPI_COMPARE_NAME(a,b)          (!ACPI_STRNCMP (ACPI_CAST_PTR (char,(a)), ACPI_CAST_PTR (char,(b)), ACPI_NAME_SIZE))
+#define ACPI_COMPARE_NAME(a, b)         (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_CAST_PTR (char, (b)), ACPI_NAME_SIZE))
 #endif
 
 /*
@@ -114,7 +114,7 @@
 
 /* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
 
-#define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i),ACPI_LODWORD(i)
+#define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i), ACPI_LODWORD(i)
 
 #if ACPI_MACHINE_WIDTH == 64
 #define ACPI_FORMAT_NATIVE_UINT(i)      ACPI_FORMAT_UINT64(i)
@@ -132,37 +132,33 @@
  * Macros for big-endian machines
  */
 
-/* This macro sets a buffer index, starting from the end of the buffer */
-
-#define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) ((buf_len) - (((buf_offset)+1) * (byte_gran)))
-
 /* These macros reverse the bytes during the move, converting little-endian to big endian */
 
 			  /* Big Endian      <==        Little Endian */
 			  /*  Hi...Lo                     Lo...Hi     */
 /* 16-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_16_TO_16(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
+#define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[1];\
 					   ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[0];}
 
-#define ACPI_MOVE_16_TO_32(d,s)         {(*(u32 *)(void *)(d))=0;\
+#define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d))=0;\
 							   ((u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
 							   ((u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
 
-#define ACPI_MOVE_16_TO_64(d,s)         {(*(u64 *)(void *)(d))=0;\
+#define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
 									 ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
 									 ((u8 *)(void *)(d))[7] = ((u8 *)(void *)(s))[0];}
 
 /* 32-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
+#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
 
-#define ACPI_MOVE_32_TO_32(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
+#define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[3];\
 										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[2];\
 										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[1];\
 										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[0];}
 
-#define ACPI_MOVE_32_TO_64(d,s)         {(*(u64 *)(void *)(d))=0;\
+#define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d))=0;\
 										   ((u8 *)(void *)(d))[4] = ((u8 *)(void *)(s))[3];\
 										   ((u8 *)(void *)(d))[5] = ((u8 *)(void *)(s))[2];\
 										   ((u8 *)(void *)(d))[6] = ((u8 *)(void *)(s))[1];\
@@ -170,11 +166,11 @@
 
 /* 64-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
+#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
 
-#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s)	/* Truncate to 32 */
+#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */
 
-#define ACPI_MOVE_64_TO_64(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
+#define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[7];\
 										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[6];\
 										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[5];\
 										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[4];\
@@ -187,63 +183,59 @@
  * Macros for little-endian machines
  */
 
-/* This macro sets a buffer index, starting from the beginning of the buffer */
-
-#define ACPI_BUFFER_INDEX(buf_len,buf_offset,byte_gran) (buf_offset)
-
 #ifndef ACPI_MISALIGNMENT_NOT_SUPPORTED
 
 /* The hardware supports unaligned transfers, just do the little-endian move */
 
 /* 16-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_16_TO_16(d,s)         *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
-#define ACPI_MOVE_16_TO_32(d,s)         *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
-#define ACPI_MOVE_16_TO_64(d,s)         *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
+#define ACPI_MOVE_16_TO_16(d, s)        *(u16 *)(void *)(d) = *(u16 *)(void *)(s)
+#define ACPI_MOVE_16_TO_32(d, s)        *(u32 *)(void *)(d) = *(u16 *)(void *)(s)
+#define ACPI_MOVE_16_TO_64(d, s)        *(u64 *)(void *)(d) = *(u16 *)(void *)(s)
 
 /* 32-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
-#define ACPI_MOVE_32_TO_32(d,s)         *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
-#define ACPI_MOVE_32_TO_64(d,s)         *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
+#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
+#define ACPI_MOVE_32_TO_32(d, s)        *(u32 *)(void *)(d) = *(u32 *)(void *)(s)
+#define ACPI_MOVE_32_TO_64(d, s)        *(u64 *)(void *)(d) = *(u32 *)(void *)(s)
 
 /* 64-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
-#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s)	/* Truncate to 32 */
-#define ACPI_MOVE_64_TO_64(d,s)         *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
+#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
+#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */
+#define ACPI_MOVE_64_TO_64(d, s)        *(u64 *)(void *)(d) = *(u64 *)(void *)(s)
 
 #else
 /*
- * The hardware does not support unaligned transfers.  We must move the
- * data one byte at a time.  These macros work whether the source or
+ * The hardware does not support unaligned transfers. We must move the
+ * data one byte at a time. These macros work whether the source or
  * the destination (or both) is/are unaligned.  (Little-endian move)
  */
 
 /* 16-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_16_TO_16(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
+#define ACPI_MOVE_16_TO_16(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];}
 
-#define ACPI_MOVE_16_TO_32(d,s)         {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
-#define ACPI_MOVE_16_TO_64(d,s)         {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d,s);}
+#define ACPI_MOVE_16_TO_32(d, s)        {(*(u32 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
+#define ACPI_MOVE_16_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_16_TO_16(d, s);}
 
 /* 32-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_32_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
+#define ACPI_MOVE_32_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
 
-#define ACPI_MOVE_32_TO_32(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
+#define ACPI_MOVE_32_TO_32(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
 										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
 										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];}
 
-#define ACPI_MOVE_32_TO_64(d,s)         {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d,s);}
+#define ACPI_MOVE_32_TO_64(d, s)        {(*(u64 *)(void *)(d)) = 0; ACPI_MOVE_32_TO_32(d, s);}
 
 /* 64-bit source, 16/32/64 destination */
 
-#define ACPI_MOVE_64_TO_16(d,s)         ACPI_MOVE_16_TO_16(d,s)	/* Truncate to 16 */
-#define ACPI_MOVE_64_TO_32(d,s)         ACPI_MOVE_32_TO_32(d,s)	/* Truncate to 32 */
-#define ACPI_MOVE_64_TO_64(d,s)         {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
+#define ACPI_MOVE_64_TO_16(d, s)        ACPI_MOVE_16_TO_16(d, s)	/* Truncate to 16 */
+#define ACPI_MOVE_64_TO_32(d, s)        ACPI_MOVE_32_TO_32(d, s)	/* Truncate to 32 */
+#define ACPI_MOVE_64_TO_64(d, s)        {((  u8 *)(void *)(d))[0] = ((u8 *)(void *)(s))[0];\
 										 ((  u8 *)(void *)(d))[1] = ((u8 *)(void *)(s))[1];\
 										 ((  u8 *)(void *)(d))[2] = ((u8 *)(void *)(s))[2];\
 										 ((  u8 *)(void *)(d))[3] = ((u8 *)(void *)(s))[3];\
@@ -257,10 +249,10 @@
 /* Macros based on machine integer width */
 
 #if ACPI_MACHINE_WIDTH == 32
-#define ACPI_MOVE_SIZE_TO_16(d,s)       ACPI_MOVE_32_TO_16(d,s)
+#define ACPI_MOVE_SIZE_TO_16(d, s)       ACPI_MOVE_32_TO_16(d, s)
 
 #elif ACPI_MACHINE_WIDTH == 64
-#define ACPI_MOVE_SIZE_TO_16(d,s)       ACPI_MOVE_64_TO_16(d,s)
+#define ACPI_MOVE_SIZE_TO_16(d, s)       ACPI_MOVE_64_TO_16(d, s)
 
 #else
 #error unknown ACPI_MACHINE_WIDTH
@@ -269,29 +261,29 @@
 /*
  * Fast power-of-two math macros for non-optimized compilers
  */
-#define _ACPI_DIV(value,power_of2)      ((u32) ((value) >> (power_of2)))
-#define _ACPI_MUL(value,power_of2)      ((u32) ((value) << (power_of2)))
-#define _ACPI_MOD(value,divisor)        ((u32) ((value) & ((divisor) -1)))
+#define _ACPI_DIV(value, power_of2)      ((u32) ((value) >> (power_of2)))
+#define _ACPI_MUL(value, power_of2)      ((u32) ((value) << (power_of2)))
+#define _ACPI_MOD(value, divisor)        ((u32) ((value) & ((divisor) -1)))
 
-#define ACPI_DIV_2(a)                   _ACPI_DIV(a,1)
-#define ACPI_MUL_2(a)                   _ACPI_MUL(a,1)
-#define ACPI_MOD_2(a)                   _ACPI_MOD(a,2)
+#define ACPI_DIV_2(a)                   _ACPI_DIV(a, 1)
+#define ACPI_MUL_2(a)                   _ACPI_MUL(a, 1)
+#define ACPI_MOD_2(a)                   _ACPI_MOD(a, 2)
 
-#define ACPI_DIV_4(a)                   _ACPI_DIV(a,2)
-#define ACPI_MUL_4(a)                   _ACPI_MUL(a,2)
-#define ACPI_MOD_4(a)                   _ACPI_MOD(a,4)
+#define ACPI_DIV_4(a)                   _ACPI_DIV(a, 2)
+#define ACPI_MUL_4(a)                   _ACPI_MUL(a, 2)
+#define ACPI_MOD_4(a)                   _ACPI_MOD(a, 4)
 
-#define ACPI_DIV_8(a)                   _ACPI_DIV(a,3)
-#define ACPI_MUL_8(a)                   _ACPI_MUL(a,3)
-#define ACPI_MOD_8(a)                   _ACPI_MOD(a,8)
+#define ACPI_DIV_8(a)                   _ACPI_DIV(a, 3)
+#define ACPI_MUL_8(a)                   _ACPI_MUL(a, 3)
+#define ACPI_MOD_8(a)                   _ACPI_MOD(a, 8)
 
-#define ACPI_DIV_16(a)                  _ACPI_DIV(a,4)
-#define ACPI_MUL_16(a)                  _ACPI_MUL(a,4)
-#define ACPI_MOD_16(a)                  _ACPI_MOD(a,16)
+#define ACPI_DIV_16(a)                  _ACPI_DIV(a, 4)
+#define ACPI_MUL_16(a)                  _ACPI_MUL(a, 4)
+#define ACPI_MOD_16(a)                  _ACPI_MOD(a, 16)
 
-#define ACPI_DIV_32(a)                  _ACPI_DIV(a,5)
-#define ACPI_MUL_32(a)                  _ACPI_MUL(a,5)
-#define ACPI_MOD_32(a)                  _ACPI_MOD(a,32)
+#define ACPI_DIV_32(a)                  _ACPI_DIV(a, 5)
+#define ACPI_MUL_32(a)                  _ACPI_MUL(a, 5)
+#define ACPI_MOD_32(a)                  _ACPI_MOD(a, 32)
 
 /*
  * Rounding macros (Power of two boundaries only)
@@ -305,13 +297,13 @@
 
 /* Note: sizeof(acpi_size) evaluates to either 4 or 8 (32- vs 64-bit mode) */
 
-#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a,4)
-#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a,8)
-#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a,sizeof(acpi_size))
+#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a, 4)
+#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a, 8)
+#define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a, sizeof(acpi_size))
 
-#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a,4)
-#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a,8)
-#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a,sizeof(acpi_size))
+#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a, 4)
+#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a, 8)
+#define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a, sizeof(acpi_size))
 
 #define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
 #define ACPI_ROUND_BITS_DOWN_TO_BYTES(a)    ACPI_DIV_8((a))
@@ -320,9 +312,9 @@
 
 /* Generic (non-power-of-two) rounding */
 
-#define ACPI_ROUND_UP_TO(value,boundary)    (((value) + ((boundary)-1)) / (boundary))
+#define ACPI_ROUND_UP_TO(value, boundary)   (((value) + ((boundary)-1)) / (boundary))
 
-#define ACPI_IS_MISALIGNED(value)	    (((acpi_size)value) & (sizeof(acpi_size)-1))
+#define ACPI_IS_MISALIGNED(value)	    (((acpi_size) value) & (sizeof(acpi_size)-1))
 
 /*
  * Bitmask creation
@@ -333,8 +325,6 @@
 #define ACPI_MASK_BITS_ABOVE(position)      (~((ACPI_INTEGER_MAX) << ((u32) (position))))
 #define ACPI_MASK_BITS_BELOW(position)      ((ACPI_INTEGER_MAX) << ((u32) (position)))
 
-#define ACPI_IS_OCTAL_DIGIT(d)              (((char)(d) >= '0') && ((char)(d) <= '7'))
-
 /* Bitfields within ACPI registers */
 
 #define ACPI_REGISTER_PREPARE_BITS(val, pos, mask)      ((val << pos) & mask)
@@ -342,39 +332,29 @@
 
 #define ACPI_INSERT_BITS(target, mask, source)          target = ((target & (~(mask))) | (source & mask))
 
-/* Generate a UUID */
-
-#define ACPI_INIT_UUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
-	(a) & 0xFF, ((a) >> 8) & 0xFF, ((a) >> 16) & 0xFF, ((a) >> 24) & 0xFF, \
-	(b) & 0xFF, ((b) >> 8) & 0xFF, \
-	(c) & 0xFF, ((c) >> 8) & 0xFF, \
-	(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7)
-
 /*
- * An struct acpi_namespace_node * can appear in some contexts,
- * where a pointer to an union acpi_operand_object    can also
- * appear.  This macro is used to distinguish them.
+ * An struct acpi_namespace_node can appear in some contexts
+ * where a pointer to an union acpi_operand_object can also
+ * appear. This macro is used to distinguish them.
  *
  * The "Descriptor" field is the first field in both structures.
  */
 #define ACPI_GET_DESCRIPTOR_TYPE(d)     (((union acpi_descriptor *)(void *)(d))->common.descriptor_type)
-#define ACPI_SET_DESCRIPTOR_TYPE(d,t)   (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
+#define ACPI_SET_DESCRIPTOR_TYPE(d, t)  (((union acpi_descriptor *)(void *)(d))->common.descriptor_type = t)
 
 /* Macro to test the object type */
 
 #define ACPI_GET_OBJECT_TYPE(d)         (((union acpi_operand_object *)(void *)(d))->common.type)
 
-/* Macro to check the table flags for SINGLE or MULTIPLE tables are allowed */
-
-#define ACPI_IS_SINGLE_TABLE(x)         (((x) & 0x01) == ACPI_TABLE_SINGLE ? 1 : 0)
-
 /*
  * Macros for the master AML opcode table
  */
-#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
-#define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags)    {name,(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
+#if defined (ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)
+#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
+	{name, (u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
 #else
-#define ACPI_OP(name,Pargs,Iargs,obj_type,class,type,flags)    {(u32)(Pargs),(u32)(Iargs),(u32)(flags),obj_type,class,type}
+#define ACPI_OP(name, Pargs, Iargs, obj_type, class, type, flags) \
+	{(u32)(Pargs), (u32)(Iargs), (u32)(flags), obj_type, class, type}
 #endif
 
 #ifdef ACPI_DISASSEMBLER
@@ -392,18 +372,18 @@
 #define ARG_6(x)                        ((u32)(x) << (5 * ARG_TYPE_WIDTH))
 
 #define ARGI_LIST1(a)                   (ARG_1(a))
-#define ARGI_LIST2(a,b)                 (ARG_1(b)|ARG_2(a))
-#define ARGI_LIST3(a,b,c)               (ARG_1(c)|ARG_2(b)|ARG_3(a))
-#define ARGI_LIST4(a,b,c,d)             (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
-#define ARGI_LIST5(a,b,c,d,e)           (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
-#define ARGI_LIST6(a,b,c,d,e,f)         (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
+#define ARGI_LIST2(a, b)                (ARG_1(b)|ARG_2(a))
+#define ARGI_LIST3(a, b, c)             (ARG_1(c)|ARG_2(b)|ARG_3(a))
+#define ARGI_LIST4(a, b, c, d)          (ARG_1(d)|ARG_2(c)|ARG_3(b)|ARG_4(a))
+#define ARGI_LIST5(a, b, c, d, e)       (ARG_1(e)|ARG_2(d)|ARG_3(c)|ARG_4(b)|ARG_5(a))
+#define ARGI_LIST6(a, b, c, d, e, f)    (ARG_1(f)|ARG_2(e)|ARG_3(d)|ARG_4(c)|ARG_5(b)|ARG_6(a))
 
 #define ARGP_LIST1(a)                   (ARG_1(a))
-#define ARGP_LIST2(a,b)                 (ARG_1(a)|ARG_2(b))
-#define ARGP_LIST3(a,b,c)               (ARG_1(a)|ARG_2(b)|ARG_3(c))
-#define ARGP_LIST4(a,b,c,d)             (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
-#define ARGP_LIST5(a,b,c,d,e)           (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
-#define ARGP_LIST6(a,b,c,d,e,f)         (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
+#define ARGP_LIST2(a, b)                (ARG_1(a)|ARG_2(b))
+#define ARGP_LIST3(a, b, c)             (ARG_1(a)|ARG_2(b)|ARG_3(c))
+#define ARGP_LIST4(a, b, c, d)          (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d))
+#define ARGP_LIST5(a, b, c, d, e)       (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e))
+#define ARGP_LIST6(a, b, c, d, e, f)    (ARG_1(a)|ARG_2(b)|ARG_3(c)|ARG_4(d)|ARG_5(e)|ARG_6(f))
 
 #define GET_CURRENT_ARG_TYPE(list)      (list & ((u32) 0x1F))
 #define INCREMENT_ARG_LIST(list)        (list >>= ((u32) ARG_TYPE_WIDTH))
@@ -434,8 +414,8 @@
 #define ACPI_WARNING(plist)             acpi_ut_warning plist
 #define ACPI_EXCEPTION(plist)           acpi_ut_exception plist
 #define ACPI_ERROR(plist)               acpi_ut_error plist
-#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_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);
 
 #else
 
@@ -445,8 +425,8 @@
 #define ACPI_WARNING(plist)
 #define ACPI_EXCEPTION(plist)
 #define ACPI_ERROR(plist)
-#define ACPI_ERROR_NAMESPACE(s,e)
-#define ACPI_ERROR_METHOD(s,n,p,e)
+#define ACPI_ERROR_NAMESPACE(s, e)
+#define ACPI_ERROR_METHOD(s, n, p, e)
 #endif
 
 /*
@@ -489,18 +469,18 @@
 
 #define ACPI_FUNCTION_TRACE(a)          ACPI_FUNCTION_NAME(a) \
 			  acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
-#define ACPI_FUNCTION_TRACE_PTR(a,b)    ACPI_FUNCTION_NAME(a) \
-					   acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS,(void *)b)
-#define ACPI_FUNCTION_TRACE_U32(a,b)    ACPI_FUNCTION_NAME(a) \
-							 acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS,(u32)b)
-#define ACPI_FUNCTION_TRACE_STR(a,b)    ACPI_FUNCTION_NAME(a) \
-									  acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS,(char *)b)
+#define ACPI_FUNCTION_TRACE_PTR(a, b)   ACPI_FUNCTION_NAME(a) \
+					   acpi_ut_trace_ptr(ACPI_DEBUG_PARAMETERS, (void *)b)
+#define ACPI_FUNCTION_TRACE_U32(a, b)   ACPI_FUNCTION_NAME(a) \
+							 acpi_ut_trace_u32(ACPI_DEBUG_PARAMETERS, (u32)b)
+#define ACPI_FUNCTION_TRACE_STR(a, b)   ACPI_FUNCTION_NAME(a) \
+									  acpi_ut_trace_str(ACPI_DEBUG_PARAMETERS, (char *)b)
 
 #define ACPI_FUNCTION_ENTRY()           acpi_ut_track_stack_ptr()
 
 /*
  * Function exit tracing.
- * WARNING: These macros include a return statement.  This is usually considered
+ * WARNING: These macros include a return statement. This is usually considered
  * bad form, but having a separate exit macro is very ugly and difficult to maintain.
  * One of the FUNCTION_TRACE macros above must be used in conjunction with these macros
  * so that "_AcpiFunctionName" is defined.
@@ -596,13 +576,13 @@
 
 /* Stack and buffer dumping */
 
-#define ACPI_DUMP_STACK_ENTRY(a)        acpi_ex_dump_operand((a),0)
-#define ACPI_DUMP_OPERANDS(a,b,c)	acpi_ex_dump_operands(a,b,c)
+#define ACPI_DUMP_STACK_ENTRY(a)        acpi_ex_dump_operand((a), 0)
+#define ACPI_DUMP_OPERANDS(a, b, c)	acpi_ex_dump_operands(a, b, c)
 
-#define ACPI_DUMP_ENTRY(a,b)            acpi_ns_dump_entry (a,b)
-#define ACPI_DUMP_PATHNAME(a,b,c,d)     acpi_ns_dump_pathname(a,b,c,d)
+#define ACPI_DUMP_ENTRY(a, b)           acpi_ns_dump_entry (a, b)
+#define ACPI_DUMP_PATHNAME(a, b, c, d)  acpi_ns_dump_pathname(a, b, c, d)
 #define ACPI_DUMP_RESOURCE_LIST(a)      acpi_rs_dump_resource_list(a)
-#define ACPI_DUMP_BUFFER(a,b)           acpi_ut_dump_buffer((u8 *)a,b,DB_BYTE_DISPLAY,_COMPONENT)
+#define ACPI_DUMP_BUFFER(a, b)          acpi_ut_dump_buffer((u8 *) a, b, DB_BYTE_DISPLAY, _COMPONENT)
 
 /*
  * Master debug print macros
@@ -625,20 +605,20 @@
 #define ACPI_DEBUG_ONLY_MEMBERS(a)	do { } while(0)
 #define ACPI_FUNCTION_NAME(a)		do { } while(0)
 #define ACPI_FUNCTION_TRACE(a)		do { } while(0)
-#define ACPI_FUNCTION_TRACE_PTR(a,b)	do { } while(0)
-#define ACPI_FUNCTION_TRACE_U32(a,b)	do { } while(0)
-#define ACPI_FUNCTION_TRACE_STR(a,b)	do { } while(0)
+#define ACPI_FUNCTION_TRACE_PTR(a, b)	do { } while(0)
+#define ACPI_FUNCTION_TRACE_U32(a, b)	do { } while(0)
+#define ACPI_FUNCTION_TRACE_STR(a, b)	do { } while(0)
 #define ACPI_FUNCTION_EXIT		do { } while(0)
 #define ACPI_FUNCTION_STATUS_EXIT(s)	do { } while(0)
 #define ACPI_FUNCTION_VALUE_EXIT(s)	do { } while(0)
 #define ACPI_FUNCTION_ENTRY()		do { } while(0)
 #define ACPI_DUMP_STACK_ENTRY(a)	do { } while(0)
-#define ACPI_DUMP_OPERANDS(a,b,c)      do { } while(0)
-#define ACPI_DUMP_ENTRY(a,b)		do { } while(0)
-#define ACPI_DUMP_TABLES(a,b)		do { } while(0)
-#define ACPI_DUMP_PATHNAME(a,b,c,d)	do { } while(0)
+#define ACPI_DUMP_OPERANDS(a, b, c)     do { } while(0)
+#define ACPI_DUMP_ENTRY(a, b)		do { } while(0)
+#define ACPI_DUMP_TABLES(a, b)		do { } while(0)
+#define ACPI_DUMP_PATHNAME(a, b, c, d)	do { } while(0)
 #define ACPI_DUMP_RESOURCE_LIST(a)	do { } while(0)
-#define ACPI_DUMP_BUFFER(a,b)		do { } while(0)
+#define ACPI_DUMP_BUFFER(a, b)		do { } while(0)
 #define ACPI_DEBUG_PRINT(pl)		do { } while(0)
 #define ACPI_DEBUG_PRINT_RAW(pl)	do { } while(0)
 
@@ -677,15 +657,17 @@
 /*
  * Memory allocation tracking (DEBUG ONLY)
  */
+#define ACPI_MEM_PARAMETERS         _COMPONENT, _acpi_module_name, __LINE__
+
 #ifndef ACPI_DBG_TRACK_ALLOCATIONS
 
 /* Memory allocation */
 
 #ifndef ACPI_ALLOCATE
-#define ACPI_ALLOCATE(a)            acpi_ut_allocate((acpi_size)(a),_COMPONENT,_acpi_module_name,__LINE__)
+#define ACPI_ALLOCATE(a)            acpi_ut_allocate((acpi_size)(a), ACPI_MEM_PARAMETERS)
 #endif
 #ifndef ACPI_ALLOCATE_ZEROED
-#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed((acpi_size)(a), _COMPONENT,_acpi_module_name,__LINE__)
+#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed((acpi_size)(a), ACPI_MEM_PARAMETERS)
 #endif
 #ifndef ACPI_FREE
 #define ACPI_FREE(a)                acpio_os_free(a)
@@ -696,11 +678,16 @@
 
 /* Memory allocation */
 
-#define ACPI_ALLOCATE(a)            acpi_ut_allocate_and_track((acpi_size)(a),_COMPONENT,_acpi_module_name,__LINE__)
-#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed_and_track((acpi_size)(a), _COMPONENT,_acpi_module_name,__LINE__)
-#define ACPI_FREE(a)                acpi_ut_free_and_track(a,_COMPONENT,_acpi_module_name,__LINE__)
+#define ACPI_ALLOCATE(a)            acpi_ut_allocate_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
+#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed_and_track((acpi_size)(a), ACPI_MEM_PARAMETERS)
+#define ACPI_FREE(a)                acpi_ut_free_and_track(a, ACPI_MEM_PARAMETERS)
 #define ACPI_MEM_TRACKING(a)        a
 
 #endif				/* ACPI_DBG_TRACK_ALLOCATIONS */
 
+/* Preemption point */
+#ifndef ACPI_PREEMPTION_POINT
+#define ACPI_PREEMPTION_POINT() /* no preemption */
+#endif
+
 #endif				/* ACMACROS_H */
diff --git a/include/acpi/acnamesp.h b/include/acpi/acnamesp.h
index c340085..db4e6f6 100644
--- a/include/acpi/acnamesp.h
+++ b/include/acpi/acnamesp.h
@@ -178,6 +178,22 @@
 acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
 
 /*
+ * nspredef - Support for predefined/reserved names
+ */
+acpi_status
+acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
+			       union acpi_operand_object *return_object);
+
+const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
+								    acpi_namespace_node
+								    *node);
+
+void
+acpi_ns_check_parameter_count(char *pathname,
+			      struct acpi_namespace_node *node,
+			      const union acpi_predefined_info *info);
+
+/*
  * nsnames - Name and Scope manipulation
  */
 u32 acpi_ns_opens_scope(acpi_object_type type);
diff --git a/include/acpi/acobject.h b/include/acpi/acobject.h
index e9657da..eb6f038 100644
--- a/include/acpi/acobject.h
+++ b/include/acpi/acobject.h
@@ -308,18 +308,34 @@
  *****************************************************************************/
 
 /*
- * The Reference object type is used for these opcodes:
- * Arg[0-6], Local[0-7], index_op, name_op, zero_op, one_op, ones_op, debug_op
+ * The Reference object is used for these opcodes:
+ * Arg[0-6], Local[0-7], index_op, name_op, ref_of_op, load_op, load_table_op, debug_op
+ * The Reference.Class differentiates these types.
  */
 struct acpi_object_reference {
-	ACPI_OBJECT_COMMON_HEADER u8 target_type;	/* Used for index_op */
-	u16 opcode;
+	ACPI_OBJECT_COMMON_HEADER u8 class;	/* Reference Class */
+	u8 target_type;		/* Used for Index Op */
+	u8 reserved;
 	void *object;		/* name_op=>HANDLE to obj, index_op=>union acpi_operand_object */
-	struct acpi_namespace_node *node;
-	union acpi_operand_object **where;
-	u32 offset;		/* Used for arg_op, local_op, and index_op */
+	struct acpi_namespace_node *node;	/* ref_of or Namepath */
+	union acpi_operand_object **where;	/* Target of Index */
+	u32 value;		/* Used for Local/Arg/Index/ddb_handle */
 };
 
+/* Values for Reference.Class above */
+
+typedef enum {
+	ACPI_REFCLASS_LOCAL = 0,	/* Method local */
+	ACPI_REFCLASS_ARG = 1,	/* Method argument */
+	ACPI_REFCLASS_REFOF = 2,	/* Result of ref_of() TBD: Split to Ref/Node and Ref/operand_obj? */
+	ACPI_REFCLASS_INDEX = 3,	/* Result of Index() */
+	ACPI_REFCLASS_TABLE = 4,	/* ddb_handle - Load(), load_table() */
+	ACPI_REFCLASS_NAME = 5,	/* Reference to a named object */
+	ACPI_REFCLASS_DEBUG = 6,	/* Debug object */
+
+	ACPI_REFCLASS_MAX = 6
+} ACPI_REFERENCE_CLASSES;
+
 /*
  * Extra object is used as additional storage for types that
  * have AML code in their declarations (term_args) that must be
@@ -379,6 +395,13 @@
 	struct acpi_object_extra extra;
 	struct acpi_object_data data;
 	struct acpi_object_cache_list cache;
+
+	/*
+	 * Add namespace node to union in order to simplify code that accepts both
+	 * ACPI_OPERAND_OBJECTs and ACPI_NAMESPACE_NODEs. The structures share
+	 * a common descriptor_type field in order to differentiate them.
+	 */
+	struct acpi_namespace_node node;
 };
 
 /******************************************************************************
diff --git a/include/acpi/acoutput.h b/include/acpi/acoutput.h
index e17873d..09d33c7 100644
--- a/include/acpi/acoutput.h
+++ b/include/acpi/acoutput.h
@@ -80,12 +80,10 @@
 /*
  * Raw debug output levels, do not use these in the DEBUG_PRINT macros
  */
-#define ACPI_LV_ERROR               0x00000001
-#define ACPI_LV_WARN                0x00000002
-#define ACPI_LV_INIT                0x00000004
-#define ACPI_LV_DEBUG_OBJECT        0x00000008
-#define ACPI_LV_INFO                0x00000010
-#define ACPI_LV_ALL_EXCEPTIONS      0x0000001F
+#define ACPI_LV_INIT                0x00000001
+#define ACPI_LV_DEBUG_OBJECT        0x00000002
+#define ACPI_LV_INFO                0x00000004
+#define ACPI_LV_ALL_EXCEPTIONS      0x00000007
 
 /* Trace verbosity level 1 [Standard Trace Level] */
 
@@ -127,7 +125,6 @@
 #define ACPI_LV_VERBOSE_INFO        0x20000000
 #define ACPI_LV_FULL_TABLES         0x40000000
 #define ACPI_LV_EVENTS              0x80000000
-
 #define ACPI_LV_VERBOSE             0xF0000000
 
 /*
@@ -135,21 +132,17 @@
  */
 #define ACPI_DEBUG_LEVEL(dl)        (u32) dl,ACPI_DEBUG_PARAMETERS
 
-/* Exception level -- used in the global "DebugLevel" */
-
+/*
+ * Exception level -- used in the global "DebugLevel"
+ *
+ * Note: For errors, use the ACPI_ERROR or ACPI_EXCEPTION interfaces.
+ * For warnings, use ACPI_WARNING.
+ */
 #define ACPI_DB_INIT                ACPI_DEBUG_LEVEL (ACPI_LV_INIT)
 #define ACPI_DB_DEBUG_OBJECT        ACPI_DEBUG_LEVEL (ACPI_LV_DEBUG_OBJECT)
 #define ACPI_DB_INFO                ACPI_DEBUG_LEVEL (ACPI_LV_INFO)
 #define ACPI_DB_ALL_EXCEPTIONS      ACPI_DEBUG_LEVEL (ACPI_LV_ALL_EXCEPTIONS)
 
-/*
- * These two levels are essentially obsolete, all instances in the
- * ACPICA core code have been replaced by ACPI_ERROR and ACPI_WARNING
- * (Kept here because some drivers may still use them)
- */
-#define ACPI_DB_ERROR               ACPI_DEBUG_LEVEL (ACPI_LV_ERROR)
-#define ACPI_DB_WARN                ACPI_DEBUG_LEVEL (ACPI_LV_WARN)
-
 /* Trace level -- also used in the global "DebugLevel" */
 
 #define ACPI_DB_INIT_NAMES          ACPI_DEBUG_LEVEL (ACPI_LV_INIT_NAMES)
@@ -173,13 +166,14 @@
 #define ACPI_DB_USER_REQUESTS       ACPI_DEBUG_LEVEL (ACPI_LV_USER_REQUESTS)
 #define ACPI_DB_PACKAGE             ACPI_DEBUG_LEVEL (ACPI_LV_PACKAGE)
 #define ACPI_DB_MUTEX               ACPI_DEBUG_LEVEL (ACPI_LV_MUTEX)
+#define ACPI_DB_EVENTS              ACPI_DEBUG_LEVEL (ACPI_LV_EVENTS)
 
 #define ACPI_DB_ALL                 ACPI_DEBUG_LEVEL (ACPI_LV_ALL)
 
 /* Defaults for debug_level, debug and normal */
 
-#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
-#define ACPI_NORMAL_DEFAULT         (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
+#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT)
+#define ACPI_NORMAL_DEFAULT         (ACPI_LV_INIT | ACPI_LV_DEBUG_OBJECT)
 #define ACPI_DEBUG_ALL              (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
 
 #endif				/* __ACOUTPUT_H__ */
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index e5f38e5..efbaa27 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -93,6 +93,7 @@
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
 int acpi_power_get_inferred_state(struct acpi_device *device);
 int acpi_power_transition(struct acpi_device *device, int state);
+extern int acpi_power_nocheck;
 #endif
 
 /* --------------------------------------------------------------------------
diff --git a/include/acpi/acpredef.h b/include/acpi/acpredef.h
new file mode 100644
index 0000000..619fb75
--- /dev/null
+++ b/include/acpi/acpredef.h
@@ -0,0 +1,371 @@
+/******************************************************************************
+ *
+ * Name: acpredef - Information table for ACPI predefined methods and objects
+ *              $Revision: 1.1 $
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, 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.
+ */
+
+#ifndef __ACPREDEF_H__
+#define __ACPREDEF_H__
+
+/******************************************************************************
+ *
+ * Return Package types
+ *
+ * 1) PTYPE1 packages do not contain sub-packages.
+ *
+ * ACPI_PTYPE1_FIXED: Fixed length, 1 or 2 object types:
+ *     object type
+ *     count
+ *     object type
+ *     count
+ *
+ * ACPI_PTYPE1_VAR: Variable length:
+ *    object type (Int/Buf/Ref)
+ *
+ * ACPI_PTYPE1_OPTION: Package has some required and some optional elements:
+ *      Used for _PRW
+ *
+ *
+ * 2) PTYPE2 packages contain a variable number of sub-packages. Each of the
+ *    different types describe the contents of each of the sub-packages.
+ *
+ * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types:
+ *     object type
+ *     count
+ *     object type
+ *     count
+ *
+ * ACPI_PTYPE2_COUNT: Each subpackage has a count as first element:
+ *     object type
+ *
+ * ACPI_PTYPE2_PKG_COUNT: Count of subpackages at start, 1 or 2 object types:
+ *     object type
+ *     count
+ *     object type
+ *     count
+ *
+ * ACPI_PTYPE2_FIXED: Each subpackage is of fixed length:
+ *      Used for _PRT
+ *
+ * ACPI_PTYPE2_MIN: Each subpackage has a variable but minimum length
+ *      Used for _HPX
+ *
+ *****************************************************************************/
+
+enum acpi_return_package_types {
+	ACPI_PTYPE1_FIXED = 1,
+	ACPI_PTYPE1_VAR = 2,
+	ACPI_PTYPE1_OPTION = 3,
+	ACPI_PTYPE2 = 4,
+	ACPI_PTYPE2_COUNT = 5,
+	ACPI_PTYPE2_PKG_COUNT = 6,
+	ACPI_PTYPE2_FIXED = 7,
+	ACPI_PTYPE2_MIN = 8
+};
+
+/*
+ * Predefined method/object information table.
+ *
+ * These are the names that can actually be evaluated via acpi_evaluate_object.
+ * Not present in this table are the following:
+ *
+ *      1) Predefined/Reserved names that are never evaluated via acpi_evaluate_object:
+ *          _Lxx and _Exx GPE methods
+ *          _Qxx EC methods
+ *          _T_x compiler temporary variables
+ *
+ *      2) Predefined names that never actually exist within the AML code:
+ *          Predefined resource descriptor field names
+ *
+ *      3) Predefined names that are implemented within ACPICA:
+ *          _OSI
+ *
+ *      4) Some predefined names that are not documented within the ACPI spec.
+ *          _WDG, _WED
+ *
+ * The main entries in the table each contain the following items:
+ *
+ * Name                 - The ACPI reserved name
+ * param_count          - Number of arguments to the method
+ * expected_btypes      - Allowed type(s) for the return value.
+ *                        0 means that no return value is expected.
+ *
+ * For methods that return packages, the next entry in the table contains
+ * information about the expected structure of the package. This information
+ * is saved here (rather than in a separate table) in order to minimize the
+ * overall size of the stored data.
+ */
+static const union acpi_predefined_info predefined_names[] = {
+	{.info = {"_AC0", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC1", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC2", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC3", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC4", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC5", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC6", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC7", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC8", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AC9", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_ADR", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_AL0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL3", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL4", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL5", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL6", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL7", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL8", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_AL9", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_ALC", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_ALI", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_ALP", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_ALR", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}},	/* variable (Pkgs) each 2 (Ints) */
+	{.info = {"_ALT", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_BBN", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_BCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}},	/* variable (Ints) */
+	{.info = {"_BCM", 1, 0}},
+	{.info = {"_BDN", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_BFS", 1, 0}},
+	{.info = {"_BIF", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER,
+					  9,
+					  ACPI_RTYPE_STRING, 4, 0}},	/* fixed (9 Int),(4 Str) */
+	{.info = {"_BLT", 3, 0}},
+	{.info = {"_BMC", 1, 0}},
+	{.info = {"_BMD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}},	/* fixed (5 Int) */
+	{.info = {"_BQC", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_BST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}},	/* fixed (4 Int) */
+	{.info = {"_BTM", 1, ACPI_RTYPE_INTEGER}},
+	{.info = {"_BTP", 1, 0}},
+	{.info = {"_CBA", 0, ACPI_RTYPE_INTEGER}},	/* see PCI firmware spec 3.0 */
+	{.info = {"_CID", 0,
+	 ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}},
+	{.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0, 0, 0}},	/* variable (Ints/Strs) */
+	{.info = {"_CRS", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_CRT", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_CSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}},	/* variable (1 Int(n), n-1 Int) */
+	{.info = {"_CST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_PKG_COUNT,
+					  ACPI_RTYPE_BUFFER, 1,
+					  ACPI_RTYPE_INTEGER, 3, 0}},	/* variable (1 Int(n), n Pkg (1 Buf/3 Int) */
+	{.info = {"_DCK", 1, ACPI_RTYPE_INTEGER}},
+	{.info = {"_DCS", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}},
+	{.info = {"_DDN", 0, ACPI_RTYPE_STRING}},
+	{.info = {"_DGS", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_DIS", 0, 0}},
+	{.info = {"_DMA", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_DOD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}},	/* variable (Ints) */
+	{.info = {"_DOS", 1, 0}},
+	{.info = {"_DSM", 4, ACPI_RTYPE_ALL}},	/* Must return a type, but it can be of any type */
+	{.info = {"_DSS", 1, 0}},
+	{.info = {"_DSW", 3, 0}},
+	{.info = {"_EC_", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_EDL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_EJ0", 1, 0}},
+	{.info = {"_EJ1", 1, 0}},
+	{.info = {"_EJ2", 1, 0}},
+	{.info = {"_EJ3", 1, 0}},
+	{.info = {"_EJ4", 1, 0}},
+	{.info = {"_EJD", 0, ACPI_RTYPE_STRING}},
+	{.info = {"_FDE", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_FDI", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, 0, 0, 0}},	/* fixed (16 Int) */
+	{.info = {"_FDM", 1, 0}},
+	{.info = {"_FIX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}},	/* variable (Ints) */
+	{.info = {"_GLK", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_GPD", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_GPE", 0, ACPI_RTYPE_INTEGER}},	/* _GPE method, not _GPE scope */
+	{.info = {"_GSB", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_GTF", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_GTM", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_GTS", 1, 0}},
+	{.info = {"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
+	{.info = {"_HOT", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_HPP", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}},	/* fixed (4 Int) */
+
+	/*
+	 * For _HPX, a single package is returned, containing a variable number of sub-packages.
+	 * Each sub-package contains a PCI record setting. There are several different type of
+	 * record settings, of different lengths, but all elements of all settings are Integers.
+	 */
+	{.info = {"_HPX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}},	/* variable (Pkgs) each (var Ints) */
+	{.info = {"_IFT", 0, ACPI_RTYPE_INTEGER}},	/* see IPMI spec */
+	{.info = {"_INI", 0, 0}},
+	{.info = {"_IRC", 0, 0}},
+	{.info = {"_LCK", 1, 0}},
+	{.info = {"_LID", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_MAT", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_MLS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_STRING, 2, 0, 0, 0}},	/* variable (Pkgs) each (2 Str) */
+	{.info = {"_MSG", 1, 0}},
+	{.info = {"_OFF", 0, 0}},
+	{.info = {"_ON_", 0, 0}},
+	{.info = {"_OS_", 0, ACPI_RTYPE_STRING}},
+	{.info = {"_OSC", 4, ACPI_RTYPE_BUFFER}},
+	{.info = {"_OST", 3, 0}},
+	{.info = {"_PCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_PCT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}},	/* fixed (2 Buf) */
+	{.info = {"_PDC", 1, 0}},
+	{.info = {"_PIC", 1, 0}},
+	{.info = {"_PLD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0, 0, 0, 0}},	/* variable (Bufs) */
+	{.info = {"_PPC", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_PPE", 0, ACPI_RTYPE_INTEGER}},	/* see dig64 spec */
+	{.info = {"_PR0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_PR1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_PR2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_PRS", 0, ACPI_RTYPE_BUFFER}},
+
+	/*
+	 * For _PRT, many BIOSs reverse the 2nd and 3rd Package elements. This bug is so prevalent that there
+	 * is code in the ACPICA Resource Manager to detect this and switch them back. For now, do not allow
+	 * and issue a warning. To allow this and eliminate the warning, add the ACPI_RTYPE_REFERENCE
+	 * type to the 2nd element (index 1) in the statement below.
+	 */
+	{.info = {"_PRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_FIXED, 4,
+					  ACPI_RTYPE_INTEGER,
+					  ACPI_RTYPE_INTEGER,
+					  ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE, ACPI_RTYPE_INTEGER}},	/* variable (Pkgs) each (4): Int,Int,Int/Ref,Int */
+
+	{.info = {"_PRW", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_OPTION, 2,
+					  ACPI_RTYPE_INTEGER |
+					  ACPI_RTYPE_PACKAGE,
+					  ACPI_RTYPE_INTEGER, ACPI_RTYPE_REFERENCE, 0}},	/* variable (Pkgs) each: Pkg/Int,Int,[variable Refs] (Pkg is Ref/Int) */
+
+	{.info = {"_PS0", 0, 0}},
+	{.info = {"_PS1", 0, 0}},
+	{.info = {"_PS2", 0, 0}},
+	{.info = {"_PS3", 0, 0}},
+	{.info = {"_PSC", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_PSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}},	/* variable (Pkgs) each (5 Int) with count */
+	{.info = {"_PSL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_PSR", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_PSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6, 0, 0, 0}},	/* variable (Pkgs) each (6 Int) */
+	{.info = {"_PSV", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_PSW", 1, 0}},
+	{.info = {"_PTC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}},	/* fixed (2 Buf) */
+	{.info = {"_PTS", 1, 0}},
+	{.info = {"_PXM", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_REG", 2, 0}},
+	{.info = {"_REV", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_RMV", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_ROM", 2, ACPI_RTYPE_BUFFER}},
+	{.info = {"_RTV", 0, ACPI_RTYPE_INTEGER}},
+
+	/*
+	 * For _S0_ through _S5_, the ACPI spec defines a return Package containing 1 Integer,
+	 * but most DSDTs have it wrong - 2,3, or 4 integers. Allow this by making the objects "variable length",
+	 * but all elements must be Integers.
+	 */
+	{.info = {"_S0_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+	{.info = {"_S1_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+	{.info = {"_S2_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+	{.info = {"_S3_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+	{.info = {"_S4_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+	{.info = {"_S5_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}},	/* fixed (1 Int) */
+
+	{.info = {"_S1D", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S2D", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S3D", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S4D", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S0W", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S1W", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S2W", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S3W", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_S4W", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_SBS", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_SCP", 0x13, 0}},	/* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */
+	/* Note: the 3-arg definition may be removed for ACPI 4.0 */
+	{.info = {"_SDD", 1, 0}},
+	{.info = {"_SEG", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_SLI", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_SPD", 1, ACPI_RTYPE_INTEGER}},
+	{.info = {"_SRS", 1, 0}},
+	{.info = {"_SRV", 0, ACPI_RTYPE_INTEGER}},	/* see IPMI spec */
+	{.info = {"_SST", 1, 0}},
+	{.info = {"_STA", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_STM", 3, 0}},
+	{.info = {"_STR", 0, ACPI_RTYPE_BUFFER}},
+	{.info = {"_SUN", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_SWS", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TC1", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TC2", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TMP", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TPC", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TPT", 1, 0}},
+	{.info = {"_TRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2,
+					  ACPI_RTYPE_INTEGER, 6, 0}},	/* variable (Pkgs) each 2_ref/6_int */
+	{.info = {"_TSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}},	/* variable (Pkgs) each 5_int with count */
+	{.info = {"_TSP", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}},	/* variable (Pkgs) each 5_int */
+	{.info = {"_TST", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_TTS", 1, 0}},
+	{.info = {"_TZD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}},	/* variable (Refs) */
+	{.info = {"_TZM", 0, ACPI_RTYPE_REFERENCE}},
+	{.info = {"_TZP", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
+	{.info = {"_UPC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}},	/* fixed (4 Int) */
+	{.info = {"_UPD", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_UPP", 0, ACPI_RTYPE_INTEGER}},
+	{.info = {"_VPO", 0, ACPI_RTYPE_INTEGER}},
+
+	/* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */
+
+	{.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_PACKAGE}},
+	{.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}},	/* fixed (2 Int), but is optional */
+	{.ret_info = {0, 0, 0, 0, 0, 0}}	/* Table terminator */
+};
+
+#if 0
+	/* Not implemented */
+
+{
+"_WDG", 0, ACPI_RTYPE_BUFFER},	/* MS Extension */
+
+{
+"_WED", 1, ACPI_RTYPE_PACKAGE},	/* MS Extension */
+
+    /* This is an internally implemented control method, no need to check */
+{
+"_OSI", 1, ACPI_RTYPE_INTEGER},
+
+    /* TBD: */
+    _PRT - currently ignore reversed entries.attempt to fix here ?
+    think about code that attempts to fix package elements like _BIF, etc.
+#endif
+#endif
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index d38f9be2..63f5b4c 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -908,7 +908,9 @@
 	ACPI_MADT_TYPE_IO_SAPIC = 6,
 	ACPI_MADT_TYPE_LOCAL_SAPIC = 7,
 	ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8,
-	ACPI_MADT_TYPE_RESERVED = 9	/* 9 and greater are reserved */
+	ACPI_MADT_TYPE_LOCAL_X2APIC = 9,
+	ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10,
+	ACPI_MADT_TYPE_RESERVED = 11	/* 11 and greater are reserved */
 };
 
 /*
@@ -1009,6 +1011,26 @@
 
 #define ACPI_MADT_CPEI_OVERRIDE     (1)
 
+/* 9: Processor Local X2_APIC (07/2008) */
+
+struct acpi_madt_local_x2apic {
+	struct acpi_subtable_header header;
+	u16 reserved;		/* Reserved - must be zero */
+	u32 local_apic_id;	/* Processor X2_APIC ID  */
+	u32 lapic_flags;
+	u32 uid;		/* Extended X2_APIC processor ID */
+};
+
+/* 10: Local X2APIC NMI (07/2008) */
+
+struct acpi_madt_local_x2apic_nmi {
+	struct acpi_subtable_header header;
+	u16 inti_flags;
+	u32 uid;		/* Processor X2_APIC ID */
+	u8 lint;		/* LINTn to which NMI is connected */
+	u8 reserved[3];
+};
+
 /*
  * Common flags fields for MADT subtables
  */
@@ -1150,10 +1172,15 @@
 enum acpi_srat_type {
 	ACPI_SRAT_TYPE_CPU_AFFINITY = 0,
 	ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
-	ACPI_SRAT_TYPE_RESERVED = 2
+	ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
+	ACPI_SRAT_TYPE_RESERVED = 3	/* 3 and greater are reserved */
 };
 
-/* SRAT sub-tables */
+/*
+ * SRAT Sub-tables, correspond to Type in struct acpi_subtable_header
+ */
+
+/* 0: Processor Local APIC/SAPIC Affinity */
 
 struct acpi_srat_cpu_affinity {
 	struct acpi_subtable_header header;
@@ -1165,9 +1192,7 @@
 	u32 reserved;		/* Reserved, must be zero */
 };
 
-/* Flags */
-
-#define ACPI_SRAT_CPU_ENABLED       (1)	/* 00: Use affinity structure */
+/* 1: Memory Affinity */
 
 struct acpi_srat_mem_affinity {
 	struct acpi_subtable_header header;
@@ -1186,6 +1211,20 @@
 #define ACPI_SRAT_MEM_HOT_PLUGGABLE (1<<1)	/* 01: Memory region is hot pluggable */
 #define ACPI_SRAT_MEM_NON_VOLATILE  (1<<2)	/* 02: Memory region is non-volatile */
 
+/* 2: Processor Local X2_APIC Affinity (07/2008) */
+
+struct acpi_srat_x2apic_cpu_affinity {
+	struct acpi_subtable_header header;
+	u16 reserved;		/* Reserved, must be zero */
+	u32 proximity_domain;
+	u32 apic_id;
+	u32 flags;
+};
+
+/* Flags for struct acpi_srat_cpu_affinity and struct acpi_srat_x2apic_cpu_affinity */
+
+#define ACPI_SRAT_CPU_ENABLED       (1)	/* 00: Use affinity structure */
+
 /*******************************************************************************
  *
  * TCPA - Trusted Computing Platform Alliance table
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 4ea4f40..e8936ab 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -607,8 +607,15 @@
 
 /*
  * bit_register IDs
- * These are bitfields defined within the full ACPI registers
+ *
+ * These values are intended to be used by the hardware interfaces
+ * and are mapped to individual bitfields defined within the ACPI
+ * registers. See the acpi_gbl_bit_register_info global table in utglobal.c
+ * for this mapping.
  */
+
+/* PM1 Status register */
+
 #define ACPI_BITREG_TIMER_STATUS                0x00
 #define ACPI_BITREG_BUS_MASTER_STATUS           0x01
 #define ACPI_BITREG_GLOBAL_LOCK_STATUS          0x02
@@ -618,24 +625,29 @@
 #define ACPI_BITREG_WAKE_STATUS                 0x06
 #define ACPI_BITREG_PCIEXP_WAKE_STATUS          0x07
 
+/* PM1 Enable register */
+
 #define ACPI_BITREG_TIMER_ENABLE                0x08
 #define ACPI_BITREG_GLOBAL_LOCK_ENABLE          0x09
 #define ACPI_BITREG_POWER_BUTTON_ENABLE         0x0A
 #define ACPI_BITREG_SLEEP_BUTTON_ENABLE         0x0B
 #define ACPI_BITREG_RT_CLOCK_ENABLE             0x0C
-#define ACPI_BITREG_WAKE_ENABLE                 0x0D
-#define ACPI_BITREG_PCIEXP_WAKE_DISABLE         0x0E
+#define ACPI_BITREG_PCIEXP_WAKE_DISABLE         0x0D
 
-#define ACPI_BITREG_SCI_ENABLE                  0x0F
-#define ACPI_BITREG_BUS_MASTER_RLD              0x10
-#define ACPI_BITREG_GLOBAL_LOCK_RELEASE         0x11
-#define ACPI_BITREG_SLEEP_TYPE_A                0x12
-#define ACPI_BITREG_SLEEP_TYPE_B                0x13
-#define ACPI_BITREG_SLEEP_ENABLE                0x14
+/* PM1 Control register */
 
-#define ACPI_BITREG_ARB_DISABLE                 0x15
+#define ACPI_BITREG_SCI_ENABLE                  0x0E
+#define ACPI_BITREG_BUS_MASTER_RLD              0x0F
+#define ACPI_BITREG_GLOBAL_LOCK_RELEASE         0x10
+#define ACPI_BITREG_SLEEP_TYPE_A                0x11
+#define ACPI_BITREG_SLEEP_TYPE_B                0x12
+#define ACPI_BITREG_SLEEP_ENABLE                0x13
 
-#define ACPI_BITREG_MAX                         0x15
+/* PM2 Control register */
+
+#define ACPI_BITREG_ARB_DISABLE                 0x14
+
+#define ACPI_BITREG_MAX                         0x14
 #define ACPI_NUM_BITREG                         ACPI_BITREG_MAX + 1
 
 /*
@@ -859,6 +871,7 @@
 struct acpi_device_info {
 	ACPI_COMMON_OBJ_INFO;
 
+	u32 param_count;	/* If a method, required parameter count */
 	u32 valid;		/* Indicates which fields below are valid */
 	u32 current_status;	/* _STA value */
 	acpi_integer address;	/* _ADR value if any */
@@ -1225,8 +1238,8 @@
 
 #pragma pack()
 
-#define ACPI_RS_SIZE_MIN                    12
 #define ACPI_RS_SIZE_NO_DATA                8	/* Id + Length fields */
+#define ACPI_RS_SIZE_MIN                    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD (12)
 #define ACPI_RS_SIZE(type)                  (u32) (ACPI_RS_SIZE_NO_DATA + sizeof (type))
 
 #define ACPI_NEXT_RESOURCE(res)             (struct acpi_resource *)((u8 *) res + res->length)
diff --git a/include/acpi/acutils.h b/include/acpi/acutils.h
index 69f8888..d8307b2 100644
--- a/include/acpi/acutils.h
+++ b/include/acpi/acutils.h
@@ -110,7 +110,7 @@
 /*
  * utglobal - Global data structures and procedures
  */
-void acpi_ut_init_globals(void);
+acpi_status acpi_ut_init_globals(void);
 
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 
@@ -126,6 +126,8 @@
 
 char *acpi_ut_get_descriptor_name(void *object);
 
+const char *acpi_ut_get_reference_name(union acpi_operand_object *object);
+
 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc);
 
 char *acpi_ut_get_region_name(u8 space_id);
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 9af4645..029c8c0 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -53,6 +53,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
+#include <linux/sched.h>
 #include <asm/system.h>
 #include <asm/atomic.h>
 #include <asm/div64.h>
@@ -137,4 +138,9 @@
 #define ACPI_ALLOCATE_ZEROED(a)	acpi_os_allocate_zeroed(a)
 #define ACPI_FREE(a)		kfree(a)
 
+/*
+ * We need to show where it is safe to preempt execution of ACPICA
+ */
+#define ACPI_PREEMPTION_POINT()	cond_resched()
+
 #endif				/* __ACLINUX_H__ */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2651f80..0b19848 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -190,6 +190,30 @@
 struct pid;
 extern struct pid *session_of_pgrp(struct pid *pgrp);
 
+/*
+ * FW_BUG
+ * Add this to a message where you are sure the firmware is buggy or behaves
+ * really stupid or out of spec. Be aware that the responsible BIOS developer
+ * should be able to fix this issue or at least get a concrete idea of the
+ * problem by reading your message without the need of looking at the kernel
+ * code.
+ * 
+ * Use it for definite and high priority BIOS bugs.
+ *
+ * FW_WARN
+ * Use it for not that clear (e.g. could the kernel messed up things already?)
+ * and medium priority BIOS bugs.
+ *
+ * FW_INFO
+ * Use this one if you want to tell the user or vendor about something
+ * suspicious, but generally harmless related to the firmware.
+ *
+ * Use it for information or very low priority BIOS bugs.
+ */
+#define FW_BUG		"[Firmware Bug]: "
+#define FW_WARN		"[Firmware Warn]: "
+#define FW_INFO		"[Firmware Info]: "
+
 #ifdef CONFIG_PRINTK
 asmlinkage int vprintk(const char *fmt, va_list args)
 	__attribute__ ((format (printf, 1, 0)));