diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index 5147be5..b58b84b 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -132,6 +132,11 @@
 		 If you want to use ATTR_RO as read-only flag even for
 		 the directory, set this option.
 
+errors=panic|continue|remount-ro
+	      -- specify FAT behavior on critical errors: panic, continue
+		 without doing anything or remount the partition in
+		 read-only mode (default behavior).
+
 <bool>: 0,1,yes,no,true,false
 
 TODO
diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg
index a832126..bee4c30 100644
--- a/Documentation/hwmon/f71882fg
+++ b/Documentation/hwmon/f71882fg
@@ -2,14 +2,18 @@
 ======================
 
 Supported chips:
-  * Fintek F71882FG and F71883FG
-    Prefix: 'f71882fg'
+  * Fintek F71858FG
+    Prefix: 'f71858fg'
     Addresses scanned: none, address read from Super I/O config space
     Datasheet: Available from the Fintek website
   * Fintek F71862FG and F71863FG
     Prefix: 'f71862fg'
     Addresses scanned: none, address read from Super I/O config space
     Datasheet: Available from the Fintek website
+  * Fintek F71882FG and F71883FG
+    Prefix: 'f71882fg'
+    Addresses scanned: none, address read from Super I/O config space
+    Datasheet: Available from the Fintek website
   * Fintek F8000
     Prefix: 'f8000'
     Addresses scanned: none, address read from Super I/O config space
@@ -66,13 +70,13 @@
 
 Three different fan control modes are supported; the mode number is written
 to the pwm#_enable file. Note that not all modes are supported on all
-chips, and some modes may only be available in RPM / PWM mode on the F8000.
+chips, and some modes may only be available in RPM / PWM mode.
 Writing an unsupported mode will result in an invalid parameter error.
 
 * 1: Manual mode
   You ask for a specific PWM duty cycle / DC voltage or a specific % of
   fan#_full_speed by writing to the pwm# file. This mode is only
-  available on the F8000 if the fan channel is in RPM mode.
+  available on the F71858FG / F8000 if the fan channel is in RPM mode.
 
 * 2: Normal auto mode
   You can define a number of temperature/fan speed trip points, which % the
diff --git a/Documentation/hwmon/ibmaem b/Documentation/hwmon/ibmaem
index e98bdfe..1e0d59e 100644
--- a/Documentation/hwmon/ibmaem
+++ b/Documentation/hwmon/ibmaem
@@ -7,7 +7,7 @@
 Supported systems:
   * Any recent IBM System X server with AEM support.
     This includes the x3350, x3550, x3650, x3655, x3755, x3850 M2,
-    x3950 M2, and certain HS2x/LS2x/QS2x blades.  The IPMI host interface
+    x3950 M2, and certain HC10/HS2x/LS2x/QS2x blades.  The IPMI host interface
     driver ("ipmi-si") needs to be loaded for this driver to do anything.
     Prefix: 'ibmaem'
     Datasheet: Not available
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 004ee16..dcbd502 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -70,6 +70,7 @@
 [0-*]	denotes any positive number starting from 0
 [1-*]	denotes any positive number starting from 1
 RO	read only value
+WO	write only value
 RW	read/write value
 
 Read/write values may be read-only for some chips, depending on the
@@ -295,6 +296,24 @@
 		user-space.
 		RO
 
+temp[1-*]_lowest
+		Historical minimum temperature
+		Unit: millidegree Celsius
+		RO
+
+temp[1-*]_highest
+		Historical maximum temperature
+		Unit: millidegree Celsius
+		RO
+
+temp[1-*]_reset_history
+		Reset temp_lowest and temp_highest
+		WO
+
+temp_reset_history
+		Reset temp_lowest and temp_highest for all sensors
+		WO
+
 Some chips measure temperature using external thermistors and an ADC, and
 report the temperature measurement as a voltage. Converting this voltage
 back to a temperature (or the other way around for limits) requires
diff --git a/Documentation/hwmon/tmp401 b/Documentation/hwmon/tmp401
new file mode 100644
index 0000000..9fc4472
--- /dev/null
+++ b/Documentation/hwmon/tmp401
@@ -0,0 +1,42 @@
+Kernel driver tmp401
+====================
+
+Supported chips:
+  * Texas Instruments TMP401
+    Prefix: 'tmp401'
+    Addresses scanned: I2C 0x4c
+    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
+  * Texas Instruments TMP411
+    Prefix: 'tmp411'
+    Addresses scanned: I2C 0x4c
+    Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
+
+Authors:
+         Hans de Goede <hdegoede@redhat.com>
+	 Andre Prendel <andre.prendel@gmx.de>
+
+Description
+-----------
+
+This driver implements support for Texas Instruments TMP401 and
+TMP411 chips. These chips implements one remote and one local
+temperature sensor. Temperature is measured in degrees
+Celsius. Resolution of the remote sensor is 0.0625 degree. Local
+sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
+supported by the driver so far, so using the default resolution of 0.5
+degree).
+
+The driver provides the common sysfs-interface for temperatures (see
+/Documentation/hwmon/sysfs-interface under Temperatures).
+
+The TMP411 chip is compatible with TMP401. It provides some additional
+features.
+
+* Minimum and Maximum temperature measured since power-on, chip-reset
+
+  Exported via sysfs attributes tempX_lowest and tempX_highest.
+
+* Reset of historical minimum/maximum temperature measurements
+
+  Exported via sysfs attribute temp_reset_history. Writing 1 to this
+  file triggers a reset.
diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf
index b6eb593..02b7489 100644
--- a/Documentation/hwmon/w83627ehf
+++ b/Documentation/hwmon/w83627ehf
@@ -12,6 +12,10 @@
     Addresses scanned: ISA address retrieved from Super I/O registers
     Datasheet:
         http://www.nuvoton.com.tw/NR/rdonlyres/7885623D-A487-4CF9-A47F-30C5F73D6FE6/0/W83627DHG.pdf
+  * Winbond W83627DHG-P
+    Prefix: 'w83627dhg'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+    Datasheet: not available
   * Winbond W83667HG
     Prefix: 'w83667hg'
     Addresses scanned: ISA address retrieved from Super I/O registers
@@ -28,8 +32,8 @@
 -----------
 
 This driver implements support for the Winbond W83627EHF, W83627EHG,
-W83627DHG and W83667HG super I/O chips. We will refer to them collectively
-as Winbond chips.
+W83627DHG, W83627DHG-P and W83667HG super I/O chips. We will refer to them
+collectively as Winbond chips.
 
 The chips implement three temperature sensors, five fan rotation
 speed sensors, ten analog voltage sensors (only nine for the 627DHG), one
@@ -135,3 +139,6 @@
 The DHG also supports PECI, where the DHG queries Intel CPU temperatures, and
 the ICH8 southbridge gets that data via PECI from the DHG, so that the
 southbridge drives the fans. And the DHG supports SST, a one-wire serial bus.
+
+The DHG-P has an additional automatic fan speed control mode named Smart Fan
+(TM) III+. This mode is not yet supported by the driver.
diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro
index 22efedf..2e758b0 100644
--- a/Documentation/i2c/busses/i2c-viapro
+++ b/Documentation/i2c/busses/i2c-viapro
@@ -19,6 +19,9 @@
   * VIA Technologies, Inc. VX800/VX820
     Datasheet: available on http://linux.via.com.tw
 
+  * VIA Technologies, Inc. VX855/VX875
+    Datasheet: Availability unknown
+
 Authors:
 	Kyösti Mälkki <kmalkki@cc.hut.fi>,
 	Mark D. Studebaker <mdsxyz123@yahoo.com>,
@@ -53,6 +56,7 @@
  device 1106:3287   (VT8251)
  device 1106:8324   (CX700)
  device 1106:8353   (VX800/VX820)
+ device 1106:8409   (VX855/VX875)
 
 If none of these show up, you should look in the BIOS for settings like
 enable ACPI / SMBus or even USB.
diff --git a/MAINTAINERS b/MAINTAINERS
index 2cb7566..09f6b3e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -157,9 +157,10 @@
 F:	drivers/net/r8169.c
 
 8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
+P:	Alan Cox
+M:	alan@lxorguk.ukuu.org.uk
 L:	linux-serial@vger.kernel.org
 W:	http://serial.sourceforge.net
-M:	alan@lxorguk.ukuu.org.uk
 S:	Odd Fixes
 F:	drivers/serial/8250*
 F:	include/linux/serial_8250.h
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a60cfe7..8ea0d942 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -6,59 +6,65 @@
 mainmenu "Blackfin Kernel Configuration"
 
 config MMU
-	bool
-	default n
+	def_bool n
 
 config FPU
-	bool
-	default n
+	def_bool n
 
 config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
+	def_bool y
 
 config RWSEM_XCHGADD_ALGORITHM
-	bool
-	default n
+	def_bool n
 
 config BLACKFIN
-	bool
-	default y
+	def_bool y
+	select HAVE_FUNCTION_GRAPH_TRACER
+	select HAVE_FUNCTION_TRACER
 	select HAVE_IDE
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZMA
 	select HAVE_OPROFILE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 
+config GENERIC_BUG
+	def_bool y
+	depends on BUG
+
 config ZONE_DMA
-	bool
-	default y
+	def_bool y
 
 config GENERIC_FIND_NEXT_BIT
-	bool
-	default y
+	def_bool y
 
 config GENERIC_HWEIGHT
-	bool
-	default y
+	def_bool y
 
 config GENERIC_HARDIRQS
-	bool
-	default y
+	def_bool y
 
 config GENERIC_IRQ_PROBE
-	bool
-	default y
+	def_bool y
 
 config GENERIC_GPIO
-	bool
-	default y
+	def_bool y
 
 config FORCE_MAX_ZONEORDER
 	int
 	default "14"
 
 config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
+	def_bool y
+
+config LOCKDEP_SUPPORT
+	def_bool y
+
+config STACKTRACE_SUPPORT
+	def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+	def_bool y
 
 source "init/Kconfig"
 
@@ -408,12 +414,12 @@
 
 config CLKIN_HZ
 	int "Frequency of the crystal on the board in Hz"
-	default "11059200" if BFIN533_STAMP
-	default "27000000" if BFIN533_EZKIT
-	default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN538_EZKIT || BFIN518F-EZBRD)
-	default "30000000" if BFIN561_EZKIT
-	default "24576000" if PNAV10
 	default "10000000" if BFIN532_IP0X
+	default "11059200" if BFIN533_STAMP
+	default "24576000" if PNAV10
+	default "25000000" # most people use this
+	default "27000000" if BFIN533_EZKIT
+	default "30000000" if BFIN561_EZKIT
 	help
 	  The frequency of CLKIN crystal oscillator on the board in Hz.
 	  Warning: This value should match the crystal on the board. Otherwise,
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index d54c828..6f9533c 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -137,7 +137,7 @@
 
 INSTALL_PATH ?= /tftpboot
 boot := arch/$(ARCH)/boot
-BOOT_TARGETS = vmImage
+BOOT_TARGETS = vmImage vmImage.bz2 vmImage.gz vmImage.lzma
 PHONY += $(BOOT_TARGETS) install
 KBUILD_IMAGE := $(boot)/vmImage
 
@@ -150,7 +150,10 @@
 	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
 
 define archhelp
-  echo  '* vmImage         - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)'
+  echo  '* vmImage         - Alias to selected kernel format (vmImage.gz by default)'
+  echo  '  vmImage.bz2     - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
+  echo  '* vmImage.gz      - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
+  echo  '  vmImage.lzma    - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
   echo  '  install         - Install kernel using'
   echo  '                     (your) ~/bin/$(CROSS_COMPILE)installkernel or'
   echo  '                     (distribution) PATH: $(CROSS_COMPILE)installkernel or'
diff --git a/arch/blackfin/boot/.gitignore b/arch/blackfin/boot/.gitignore
index 3ae0399..229e508 100644
--- a/arch/blackfin/boot/.gitignore
+++ b/arch/blackfin/boot/.gitignore
@@ -1 +1,2 @@
-+vmImage
+vmImage*
+vmlinux*
diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile
index e028d13..3ab6f23 100644
--- a/arch/blackfin/boot/Makefile
+++ b/arch/blackfin/boot/Makefile
@@ -8,24 +8,41 @@
 
 MKIMAGE := $(srctree)/scripts/mkuboot.sh
 
-targets := vmImage
-extra-y += vmlinux.bin vmlinux.gz
+targets := vmImage vmImage.bz2 vmImage.gz vmImage.lzma
+extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma
 
 quiet_cmd_uimage = UIMAGE  $@
       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \
-                   -C gzip -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
+                   -C $(2) -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
                    -e $(shell $(NM) vmlinux | awk '$$NF == "__start" {print $$1}') \
                    -d $< $@
 
 $(obj)/vmlinux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
 
-$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,gzip)
 
-$(obj)/vmImage: $(obj)/vmlinux.gz
-	$(call if_changed,uimage)
-	@$(kecho) 'Kernel: $@ is ready'
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,bzip2)
+
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,lzma)
+
+$(obj)/vmImage.bz2: $(obj)/vmlinux.bin.bz2
+	$(call if_changed,uimage,bzip2)
+
+$(obj)/vmImage.gz: $(obj)/vmlinux.bin.gz
+	$(call if_changed,uimage,gzip)
+
+$(obj)/vmImage.lzma: $(obj)/vmlinux.bin.lzma
+	$(call if_changed,uimage,lzma)
+
+suffix-$(CONFIG_KERNEL_GZIP)  := gz
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_LZMA)  := lzma
+$(obj)/vmImage: $(obj)/vmImage.$(suffix-y)
+	@ln -sf $(notdir $<) $@
 
 install:
 	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h
index 7bbf44e..b1d92f1 100644
--- a/arch/blackfin/include/asm/atomic.h
+++ b/arch/blackfin/include/asm/atomic.h
@@ -90,7 +90,7 @@
 
 static inline void atomic_add(int i, atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter += i;
@@ -99,7 +99,7 @@
 
 static inline void atomic_sub(int i, atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter -= i;
@@ -110,7 +110,7 @@
 static inline int atomic_add_return(int i, atomic_t *v)
 {
 	int __temp = 0;
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter += i;
@@ -124,7 +124,7 @@
 static inline int atomic_sub_return(int i, atomic_t *v)
 {
 	int __temp = 0;
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter -= i;
@@ -136,7 +136,7 @@
 
 static inline void atomic_inc(volatile atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter++;
@@ -145,7 +145,7 @@
 
 static inline void atomic_dec(volatile atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter--;
@@ -154,7 +154,7 @@
 
 static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter &= ~mask;
@@ -163,7 +163,7 @@
 
 static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
 {
-	long flags;
+	unsigned long flags;
 
 	local_irq_save_hw(flags);
 	v->counter |= mask;
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index daffc06..e39277e 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -31,7 +31,7 @@
 
 #ifndef __ASSEMBLY__
 
-#include <asm-generic/sections.h>
+#include <asm/sections.h>
 #include <asm/ptrace.h>
 #include <asm/user.h>
 #include <linux/linkage.h>
@@ -99,15 +99,6 @@
 extern unsigned long bfin_sic_iwr[];
 extern unsigned vr_wakeup;
 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
-extern unsigned long _ramstart, _ramend, _rambase;
-extern unsigned long memory_start, memory_end, physical_mem_end;
-extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
-	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
-	_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
-	_ebss_l2[], _l2_lma_start[];
-
-/* only used when MTD_UCLINUX */
-extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
 
 #ifdef CONFIG_BFIN_ICACHE_LOCK
 extern void cache_grab_lock(int way);
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h
index 21b036e..75fee2f 100644
--- a/arch/blackfin/include/asm/bitops.h
+++ b/arch/blackfin/include/asm/bitops.h
@@ -109,7 +109,8 @@
 
 static inline void change_bit(int nr, volatile unsigned long *addr)
 {
-	int mask, flags;
+	int mask;
+	unsigned long flags;
 	unsigned long *ADDR = (unsigned long *)addr;
 
 	ADDR += nr >> 5;
diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h
index 6d3e11b..655e495 100644
--- a/arch/blackfin/include/asm/bug.h
+++ b/arch/blackfin/include/asm/bug.h
@@ -2,13 +2,58 @@
 #define _BLACKFIN_BUG_H
 
 #ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
 
-#define BUG() do { \
-	dump_bfin_trace_buffer(); \
-	printk(KERN_EMERG "BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
-	panic("BUG!"); \
-} while (0)
+#define BFIN_BUG_OPCODE	0xefcd
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define _BUG_OR_WARN(flags)						\
+	asm volatile(							\
+		"1:	.hword	%0\n"					\
+		"	.section __bug_table,\"a\",@progbits\n"		\
+		"2:	.long	1b\n"					\
+		"	.long	%1\n"					\
+		"	.short	%2\n"					\
+		"	.short	%3\n"					\
+		"	.org	2b + %4\n"				\
+		"	.previous"					\
+		:							\
+		: "i"(BFIN_BUG_OPCODE), "i"(__FILE__),			\
+		  "i"(__LINE__), "i"(flags),				\
+		  "i"(sizeof(struct bug_entry)))
+
+#else
+
+#define _BUG_OR_WARN(flags)						\
+	asm volatile(							\
+		"1:	.hword	%0\n"					\
+		"	.section __bug_table,\"a\",@progbits\n"		\
+		"2:	.long	1b\n"					\
+		"	.short	%1\n"					\
+		"	.org	2b + %2\n"				\
+		"	.previous"					\
+		:							\
+		: "i"(BFIN_BUG_OPCODE), "i"(flags),			\
+		  "i"(sizeof(struct bug_entry)))
+
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
+#define BUG()								\
+	do {								\
+		_BUG_OR_WARN(0);					\
+		for (;;);						\
+	} while (0)
+
+#define WARN_ON(condition)							\
+	({								\
+		int __ret_warn_on = !!(condition);			\
+		if (unlikely(__ret_warn_on))				\
+			_BUG_OR_WARN(BUGFLAG_WARNING);			\
+		unlikely(__ret_warn_on);				\
+	})
+
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
 
 #endif
 
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 8663781..2ef669e 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -34,9 +34,13 @@
 #define L1_CACHE_SHIFT_MAX	5
 
 #if defined(CONFIG_SMP) && \
-    !defined(CONFIG_BFIN_CACHE_COHERENT) && \
-    defined(CONFIG_BFIN_DCACHE)
-#define __ARCH_SYNC_CORE_DCACHE
+    !defined(CONFIG_BFIN_CACHE_COHERENT)
+# if defined(CONFIG_BFIN_ICACHE)
+# define __ARCH_SYNC_CORE_ICACHE
+# endif
+# if defined(CONFIG_BFIN_DCACHE)
+# define __ARCH_SYNC_CORE_DCACHE
+# endif
 #ifndef __ASSEMBLY__
 asmlinkage void __raw_smp_mark_barrier_asm(void);
 asmlinkage void __raw_smp_check_barrier_asm(void);
@@ -51,6 +55,7 @@
 }
 
 void resync_core_dcache(void);
+void resync_core_icache(void);
 #endif
 #endif
 
diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h
index 94697f0..5c17dee 100644
--- a/arch/blackfin/include/asm/cacheflush.h
+++ b/arch/blackfin/include/asm/cacheflush.h
@@ -37,6 +37,7 @@
 extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address);
 extern void blackfin_dflush_page(void *page);
 extern void blackfin_invalidate_entire_dcache(void);
+extern void blackfin_invalidate_entire_icache(void);
 
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
@@ -97,7 +98,7 @@
 extern unsigned long reserved_mem_dcache_on;
 extern unsigned long reserved_mem_icache_on;
 
-static inline int bfin_addr_dcachable(unsigned long addr)
+static inline int bfin_addr_dcacheable(unsigned long addr)
 {
 #ifdef CONFIG_BFIN_DCACHE
 	if (addr < (_ramend - DMA_UNCACHED_REGION))
diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h
index c2594ef..565b813 100644
--- a/arch/blackfin/include/asm/cpu.h
+++ b/arch/blackfin/include/asm/cpu.h
@@ -34,6 +34,7 @@
 	unsigned int dmemctl;
 	unsigned long loops_per_jiffy;
 	unsigned long dcache_invld_count;
+	unsigned long icache_invld_count;
 };
 
 DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data);
diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h
index 40a8c178..8643680 100644
--- a/arch/blackfin/include/asm/ftrace.h
+++ b/arch/blackfin/include/asm/ftrace.h
@@ -1 +1,13 @@
-/* empty */
+/*
+ * Blackfin ftrace code
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_FTRACE_H__
+#define __ASM_BFIN_FTRACE_H__
+
+#define MCOUNT_INSN_SIZE	8 /* sizeof mcount call: LINK + CALL */
+
+#endif
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 51d0bf5..bbe1c37 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -35,10 +35,10 @@
 #include <asm/atomic.h>
 #include <asm/traps.h>
 
-#define IPIPE_ARCH_STRING     "1.9-01"
+#define IPIPE_ARCH_STRING     "1.10-00"
 #define IPIPE_MAJOR_NUMBER    1
-#define IPIPE_MINOR_NUMBER    9
-#define IPIPE_PATCH_NUMBER    1
+#define IPIPE_MINOR_NUMBER    10
+#define IPIPE_PATCH_NUMBER    0
 
 #ifdef CONFIG_SMP
 #error "I-pipe/blackfin: SMP not implemented"
@@ -54,10 +54,11 @@
 
 #define task_hijacked(p)						\
 	({								\
-		int __x__ = ipipe_current_domain != ipipe_root_domain;	\
-		/* We would need to clear the SYNC flag for the root domain */ \
-		/* over the current processor in SMP mode. */		\
-		local_irq_enable_hw(); __x__;				\
+		int __x__ = __ipipe_root_domain_p;			\
+		__clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \
+		if (__x__)						\
+			local_irq_enable_hw();				\
+		!__x__;							\
 	})
 
 struct ipipe_domain;
@@ -179,23 +180,24 @@
 
 #define __ipipe_run_isr(ipd, irq)					\
 	do {								\
-		if (ipd == ipipe_root_domain) {				\
+		if (!__ipipe_pipeline_head_p(ipd))			\
 			local_irq_enable_hw();				\
-			if (ipipe_virtual_irq_p(irq))			\
+		if (ipd == ipipe_root_domain) {				\
+			if (unlikely(ipipe_virtual_irq_p(irq))) {	\
+				irq_enter();				\
 				ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
-			else						\
+				irq_exit();				\
+			} else 						\
 				ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \
-			local_irq_disable_hw();				\
 		} else {						\
 			__clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
-			local_irq_enable_nohead(ipd);			\
 			ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \
 			/* Attempt to exit the outer interrupt level before \
 			 * starting the deferred IRQ processing. */	\
-			local_irq_disable_nohead(ipd);			\
 			__ipipe_run_irqtail();				\
 			__set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \
 		}							\
+		local_irq_disable_hw();					\
 	} while (0)
 
 #define __ipipe_syscall_watched_p(p, sc)	\
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index 7645e85..400bdd5 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/arch/blackfin/include/asm/irq.h
@@ -17,270 +17,17 @@
 #ifndef _BFIN_IRQ_H_
 #define _BFIN_IRQ_H_
 
-/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
+#include <linux/irqflags.h>
+
+/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */
 #include <mach/irq.h>
-#include <asm/pda.h>
-#include <asm/processor.h>
 
-#ifdef CONFIG_SMP
-/* Forward decl needed due to cdef inter dependencies */
-static inline uint32_t __pure bfin_dspid(void);
-# define blackfin_core_id() (bfin_dspid() & 0xff)
-# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
-#else
-extern unsigned long bfin_irq_flags;
-#endif
-
-#ifdef CONFIG_IPIPE
-
-#include <linux/ipipe_trace.h>
-
-void __ipipe_unstall_root(void);
-
-void __ipipe_restore_root(unsigned long flags);
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __all_masked_irq_flags 0x3f
-# define __save_and_cli_hw(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		"sti %1;" \
-		: "=&d"(x) \
-		: "d" (0x3F) \
-	)
-#else
-# define __all_masked_irq_flags 0x1f
-# define __save_and_cli_hw(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		: "=&d"(x) \
-	)
-#endif
-
-#define irqs_enabled_from_flags_hw(x)	((x) != __all_masked_irq_flags)
-#define raw_irqs_disabled_flags(flags)	(!irqs_enabled_from_flags_hw(flags))
-#define local_test_iflag_hw(x)		irqs_enabled_from_flags_hw(x)
-
-#define local_save_flags(x)					 \
-	do {							 \
-		(x) = __ipipe_test_root() ?			 \
-			__all_masked_irq_flags : bfin_irq_flags; \
-		barrier();					 \
-	} while (0)
-
-#define local_irq_save(x)					 \
-	do {						 	 \
-		(x) = __ipipe_test_and_stall_root() ?		 \
-			__all_masked_irq_flags : bfin_irq_flags; \
-		barrier();					 \
-	} while (0)
-
-static inline void local_irq_restore(unsigned long x)
-{
-	barrier();
-	__ipipe_restore_root(x == __all_masked_irq_flags);
-}
-
-#define local_irq_disable()			\
-	do {					\
-		__ipipe_stall_root();		\
-		barrier();			\
-	} while (0)
-
-static inline void local_irq_enable(void)
-{
-	barrier();
-	__ipipe_unstall_root();
-}
-
-#define irqs_disabled()		__ipipe_test_root()
-
-#define local_save_flags_hw(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		"sti %0;" \
-		: "=d"(x) \
-	)
-
-#define	irqs_disabled_hw()				\
-	({						\
-		unsigned long flags;			\
-		local_save_flags_hw(flags);		\
-		!irqs_enabled_from_flags_hw(flags);	\
-	})
-
-static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real)
-{
-	/* Merge virtual and real interrupt mask bits into a single
-	   32bit word. */
-	return (real & ~(1 << 31)) | ((virt != 0) << 31);
-}
-
-static inline int raw_demangle_irq_bits(unsigned long *x)
-{
-	int virt = (*x & (1 << 31)) != 0;
-	*x &= ~(1L << 31);
-	return virt;
-}
-
-#ifdef CONFIG_IPIPE_TRACE_IRQSOFF
-
-#define local_irq_disable_hw()						\
-	do {								\
-		int _tmp_dummy;						\
-		if (!irqs_disabled_hw())				\
-			ipipe_trace_begin(0x80000000);			\
-		__asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : );	\
-	} while (0)
-
-#define local_irq_enable_hw()						\
-	do {								\
-		if (irqs_disabled_hw())					\
-			ipipe_trace_end(0x80000000);			\
-		__asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags));	\
-	} while (0)
-
-#define local_irq_save_hw(x)				\
-	do {						\
-		__save_and_cli_hw(x);			\
-		if (local_test_iflag_hw(x))		\
-			ipipe_trace_begin(0x80000001);	\
-	} while (0)
-
-#define local_irq_restore_hw(x)				\
-	do {						\
-		if (local_test_iflag_hw(x)) {		\
-			ipipe_trace_end(0x80000001);	\
-			local_irq_enable_hw_notrace();	\
-		}					\
-	} while (0)
-
-#define local_irq_disable_hw_notrace()					\
-	do {								\
-		int _tmp_dummy;						\
-		__asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : );	\
-	} while (0)
-
-#define local_irq_enable_hw_notrace() \
-	__asm__ __volatile__( \
-		"sti %0;" \
-		: \
-		: "d"(bfin_irq_flags) \
-	)
-
-#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x)
-
-#define local_irq_restore_hw_notrace(x)			\
-	do {						\
-		if (local_test_iflag_hw(x))		\
-			local_irq_enable_hw_notrace();	\
-	} while (0)
-
-#else /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#define local_irq_enable_hw() \
-	__asm__ __volatile__( \
-		"sti %0;" \
-		: \
-		: "d"(bfin_irq_flags) \
-	)
-
-#define local_irq_disable_hw()			\
-	do {					\
-		int _tmp_dummy;			\
-		__asm__ __volatile__ (		\
-			"cli %0;"		\
-			: "=d" (_tmp_dummy));	\
-	} while (0)
-
-#define local_irq_restore_hw(x) \
-	do { \
-		if (irqs_enabled_from_flags_hw(x)) \
-			local_irq_enable_hw(); \
-	} while (0)
-
-#define local_irq_save_hw(x)		__save_and_cli_hw(x)
-
-#define local_irq_disable_hw_notrace()	local_irq_disable_hw()
-#define local_irq_enable_hw_notrace()	local_irq_enable_hw()
-#define local_irq_save_hw_notrace(x)	local_irq_save_hw(x)
-#define local_irq_restore_hw_notrace(x)	local_irq_restore_hw(x)
-
-#endif  /* CONFIG_IPIPE_TRACE_IRQSOFF */
-
-#else /* !CONFIG_IPIPE */
-
-/*
- * Interrupt configuring macros.
- */
-#define local_irq_disable() \
-	do { \
-		int __tmp_dummy; \
-		__asm__ __volatile__( \
-			"cli %0;" \
-			: "=d" (__tmp_dummy) \
-		); \
-	} while (0)
-
-#define local_irq_enable() \
-	__asm__ __volatile__( \
-		"sti %0;" \
-		: \
-		: "d" (bfin_irq_flags) \
-	)
-
-#ifdef CONFIG_DEBUG_HWERR
-# define __save_and_cli(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		"sti %1;" \
-		: "=&d" (x) \
-		: "d" (0x3F) \
-	)
-#else
-# define __save_and_cli(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		: "=&d" (x) \
-	)
-#endif
-
-#define local_save_flags(x) \
-	__asm__ __volatile__( \
-		"cli %0;" \
-		"sti %0;" \
-		: "=d" (x) \
-	)
-
-#ifdef CONFIG_DEBUG_HWERR
-#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0)
-#else
-#define irqs_enabled_from_flags(x) ((x) != 0x1f)
-#endif
-
-#define local_irq_restore(x) \
-	do { \
-		if (irqs_enabled_from_flags(x)) \
-			local_irq_enable(); \
-	} while (0)
-
-/* For spinlocks etc */
-#define local_irq_save(x) __save_and_cli(x)
-
-#define irqs_disabled()				\
-({						\
-	unsigned long flags;			\
-	local_save_flags(flags);		\
-	!irqs_enabled_from_flags(flags);	\
-})
-
-#define local_irq_save_hw(x)		local_irq_save(x)
-#define local_irq_restore_hw(x)		local_irq_restore(x)
-#define local_irq_enable_hw()		local_irq_enable()
-#define local_irq_disable_hw()		local_irq_disable()
-#define irqs_disabled_hw()		irqs_disabled()
-
-#endif /* !CONFIG_IPIPE */
+/* Xenomai IPIPE helpers */
+#define local_irq_restore_hw(x) local_irq_restore(x)
+#define local_irq_save_hw(x)    local_irq_save(x)
+#define local_irq_enable_hw(x)  local_irq_enable(x)
+#define local_irq_disable_hw(x) local_irq_disable(x)
+#define irqs_disabled_hw(x)     irqs_disabled(x)
 
 #if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
 # define NOP_PAD_ANOMALY_05000244 "nop; nop;"
diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
new file mode 100644
index 0000000..139cba46
--- /dev/null
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -0,0 +1,63 @@
+/*
+ * interface to Blackfin CEC
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_IRQFLAGS_H__
+#define __ASM_BFIN_IRQFLAGS_H__
+
+#ifdef CONFIG_SMP
+# include <asm/pda.h>
+# include <asm/processor.h>
+/* Forward decl needed due to cdef inter dependencies */
+static inline uint32_t __pure bfin_dspid(void);
+# define blackfin_core_id() (bfin_dspid() & 0xff)
+# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
+#else
+extern unsigned long bfin_irq_flags;
+#endif
+
+static inline void bfin_sti(unsigned long flags)
+{
+	asm volatile("sti %0;" : : "d" (flags));
+}
+
+static inline unsigned long bfin_cli(void)
+{
+	unsigned long flags;
+	asm volatile("cli %0;" : "=d" (flags));
+	return flags;
+}
+
+static inline void raw_local_irq_disable(void)
+{
+	bfin_cli();
+}
+static inline void raw_local_irq_enable(void)
+{
+	bfin_sti(bfin_irq_flags);
+}
+
+#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0)
+
+#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+	if (!raw_irqs_disabled_flags(flags))
+		raw_local_irq_enable();
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+	unsigned long flags = bfin_cli();
+#ifdef CONFIG_DEBUG_HWERR
+	bfin_sti(0x3f);
+#endif
+	return flags;
+}
+#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif
diff --git a/arch/blackfin/include/asm/mutex-dec.h b/arch/blackfin/include/asm/mutex-dec.h
deleted file mode 100644
index 0134151..0000000
--- a/arch/blackfin/include/asm/mutex-dec.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * include/asm-generic/mutex-dec.h
- *
- * Generic implementation of the mutex fastpath, based on atomic
- * decrement/increment.
- */
-#ifndef _ASM_GENERIC_MUTEX_DEC_H
-#define _ASM_GENERIC_MUTEX_DEC_H
-
-/**
- *  __mutex_fastpath_lock - try to take the lock by moving the count
- *                          from 1 to a 0 value
- *  @count: pointer of type atomic_t
- *  @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function MUST leave the value lower than
- * 1 even when the "1" assertion wasn't true.
- */
-static inline void
-__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
-	if (unlikely(atomic_dec_return(count) < 0))
-		fail_fn(count);
-	else
-		smp_mb();
-}
-
-/**
- *  __mutex_fastpath_lock_retval - try to take the lock by moving the count
- *                                 from 1 to a 0 value
- *  @count: pointer of type atomic_t
- *  @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function returns 0 if the fastpath succeeds,
- * or anything the slow path function returns.
- */
-static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
-{
-	if (unlikely(atomic_dec_return(count) < 0))
-		return fail_fn(count);
-	else {
-		smp_mb();
-		return 0;
-	}
-}
-
-/**
- *  __mutex_fastpath_unlock - try to promote the count from 0 to 1
- *  @count: pointer of type atomic_t
- *  @fail_fn: function to call if the original value was not 0
- *
- * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>.
- * In the failure case, this function is allowed to either set the value to
- * 1, or to set it to a value lower than 1.
- *
- * If the implementation sets it to a value of lower than 1, then the
- * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
- * to return 0 otherwise.
- */
-static inline void
-__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
-{
-	smp_mb();
-	if (unlikely(atomic_inc_return(count) <= 0))
-		fail_fn(count);
-}
-
-#define __mutex_slowpath_needs_to_unlock()		1
-
-/**
- * __mutex_fastpath_trylock - try to acquire the mutex, without waiting
- *
- *  @count: pointer of type atomic_t
- *  @fail_fn: fallback function
- *
- * Change the count from 1 to a value lower than 1, and return 0 (failure)
- * if it wasn't 1 originally, or return 1 (success) otherwise. This function
- * MUST leave the value lower than 1 even when the "1" assertion wasn't true.
- * Additionally, if the value was < 0 originally, this function must not leave
- * it to 0 on failure.
- *
- * If the architecture has no effective trylock variant, it should call the
- * <fail_fn> spinlock-based trylock variant unconditionally.
- */
-static inline int
-__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
-{
-	/*
-	 * We have two variants here. The cmpxchg based one is the best one
-	 * because it never induce a false contention state.  It is included
-	 * here because architectures using the inc/dec algorithms over the
-	 * xchg ones are much more likely to support cmpxchg natively.
-	 *
-	 * If not we fall back to the spinlock based variant - that is
-	 * just as efficient (and simpler) as a 'destructive' probing of
-	 * the mutex state would be.
-	 */
-#ifdef __HAVE_ARCH_CMPXCHG
-	if (likely(atomic_cmpxchg(count, 1, 0) == 1)) {
-		smp_mb();
-		return 1;
-	}
-	return 0;
-#else
-	return fail_fn(count);
-#endif
-}
-
-#endif
diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h
index 1443c33..e7fd0ec 100644
--- a/arch/blackfin/include/asm/sections.h
+++ b/arch/blackfin/include/asm/sections.h
@@ -4,4 +4,15 @@
 /* nothing to see, move along */
 #include <asm-generic/sections.h>
 
+/* only used when MTD_UCLINUX */
+extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
+
+extern unsigned long _ramstart, _ramend, _rambase;
+extern unsigned long memory_start, memory_end, physical_mem_end;
+
+extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
+	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
+	_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
+	_ebss_l2[], _l2_lma_start[];
+
 #endif
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index a4c8254..294dbda 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -35,10 +35,10 @@
 #define _BLACKFIN_SYSTEM_H
 
 #include <linux/linkage.h>
-#include <linux/compiler.h>
+#include <linux/irqflags.h>
 #include <mach/anomaly.h>
+#include <asm/cache.h>
 #include <asm/pda.h>
-#include <asm/processor.h>
 #include <asm/irq.h>
 
 /*
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index cf5066d..da35133 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -380,8 +380,9 @@
 #define __NR_inotify_init1	365
 #define __NR_preadv		366
 #define __NR_pwritev		367
+#define __NR_rt_tgsigqueueinfo	368
 
-#define __NR_syscall		368
+#define __NR_syscall		369
 #define NR_syscalls		__NR_syscall
 
 /* Old optional stuff no one actually uses */
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index fd4d432..3731088 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -15,6 +15,10 @@
     obj-y += time.o
 endif
 
+obj-$(CONFIG_FUNCTION_TRACER)        += ftrace-entry.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER)  += ftrace.o
+CFLAGS_REMOVE_ftrace.o = -pg
+
 obj-$(CONFIG_IPIPE)                  += ipipe.o
 obj-$(CONFIG_IPIPE_TRACE_MCOUNT)     += mcount.o
 obj-$(CONFIG_BFIN_GPTIMERS)          += gptimers.o
@@ -23,6 +27,7 @@
 obj-$(CONFIG_KGDB)                   += kgdb.o
 obj-$(CONFIG_KGDB_TESTS)             += kgdb_test.o
 obj-$(CONFIG_EARLY_PRINTK)           += early_printk.o
+obj-$(CONFIG_STACKTRACE)             += stacktrace.o
 
 # the kgdb test puts code into L2 and without linker
 # relaxation, we need to force long calls to/from it
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 763ed84..e0bf8cc 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -453,10 +453,10 @@
 	unsigned long src = (unsigned long)psrc;
 	size_t bulk, rest;
 
-	if (bfin_addr_dcachable(src))
+	if (bfin_addr_dcacheable(src))
 		blackfin_dcache_flush_range(src, src + size);
 
-	if (bfin_addr_dcachable(dst))
+	if (bfin_addr_dcacheable(dst))
 		blackfin_dcache_invalidate_range(dst, dst + size);
 
 	bulk = size & ~0xffff;
diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c
index 53e893f..aa05e63 100644
--- a/arch/blackfin/kernel/bfin_ksyms.c
+++ b/arch/blackfin/kernel/bfin_ksyms.c
@@ -103,3 +103,8 @@
 EXPORT_SYMBOL(__raw_smp_check_barrier_asm);
 #endif
 #endif
+
+#ifdef CONFIG_FUNCTION_TRACER
+extern void _mcount(void);
+EXPORT_SYMBOL(_mcount);
+#endif
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
index 87463ce..784923e 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c
@@ -151,7 +151,7 @@
 
 	d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB;
 #ifdef CONFIG_BFIN_DCACHE
-	if (bfin_addr_dcachable(addr)) {
+	if (bfin_addr_dcacheable(addr)) {
 		d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND;
 #ifdef CONFIG_BFIN_WT
 		d_data |= CPLB_L1_AOW | CPLB_WT;
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
index 8cbb47c..12b0308 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
@@ -28,6 +28,7 @@
 #include <asm/cplbinit.h>
 #include <asm/cplb.h>
 #include <asm/mmu_context.h>
+#include <asm/traps.h>
 
 /*
  * WARNING
@@ -100,28 +101,6 @@
 #endif
 }
 
-/*
- * Given the contents of the status register, return the index of the
- * CPLB that caused the fault.
- */
-static inline int faulting_cplb_index(int status)
-{
-	int signbits = __builtin_bfin_norm_fr1x32(status & 0xFFFF);
-	return 30 - signbits;
-}
-
-/*
- * Given the contents of the status register and the DCPLB_DATA contents,
- * return true if a write access should be permitted.
- */
-static inline int write_permitted(int status, unsigned long data)
-{
-	if (status & FAULT_USERSUPV)
-		return !!(data & CPLB_SUPV_WR);
-	else
-		return !!(data & CPLB_USER_WR);
-}
-
 /* Counters to implement round-robin replacement.  */
 static int icplb_rr_index[NR_CPUS] PDT_ATTR;
 static int dcplb_rr_index[NR_CPUS] PDT_ATTR;
@@ -245,43 +224,16 @@
 	return CPLB_RELOADED;
 }
 
-MGR_ATTR static noinline int dcplb_protection_fault(int cpu)
-{
-	int status = bfin_read_DCPLB_STATUS();
-
-	nr_dcplb_prot[cpu]++;
-
-	if (likely(status & FAULT_RW)) {
-		int idx = faulting_cplb_index(status);
-		unsigned long regaddr = DCPLB_DATA0 + idx * 4;
-		unsigned long data = bfin_read32(regaddr);
-
-		/* Check if fault is to dirty a clean page */
-		if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) &&
-		    write_permitted(status, data)) {
-
-			dcplb_tbl[cpu][idx].data = data;
-			bfin_write32(regaddr, data);
-			return CPLB_RELOADED;
-		}
-	}
-
-	return CPLB_PROT_VIOL;
-}
-
 MGR_ATTR int cplb_hdr(int seqstat, struct pt_regs *regs)
 {
 	int cause = seqstat & 0x3f;
 	unsigned int cpu = smp_processor_id();
 	switch (cause) {
-	case 0x2C:
+	case VEC_CPLB_I_M:
 		return icplb_miss(cpu);
-	case 0x26:
+	case VEC_CPLB_M:
 		return dcplb_miss(cpu);
 	default:
-		if (unlikely(cause == 0x23))
-			return dcplb_protection_fault(cpu);
-
 		return CPLB_UNKNOWN_ERR;
 	}
 }
diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 3302719..2ab5681 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -202,11 +202,15 @@
 asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr)
 {
 	/* This can happen before the uart is initialized, so initialize
-	 * the UART now
+	 * the UART now (but only if we are running on the processor we think
+	 * we are compiled for - otherwise we write to MMRs that don't exist,
+	 * and cause other problems. Nothing comes out the UART, but it does
+	 * end up in the __buf_log.
 	 */
-	if (likely(early_console == NULL))
+	if (likely(early_console == NULL) && CPUID == bfin_cpuid())
 		setup_early_printk(DEFAULT_EARLY_PORT);
 
+	printk(KERN_EMERG "Early panic\n");
 	dump_bfin_mem(fp);
 	show_regs(fp);
 	dump_bfin_trace_buffer();
diff --git a/arch/blackfin/kernel/ftrace-entry.S b/arch/blackfin/kernel/ftrace-entry.S
new file mode 100644
index 0000000..6980b7a
--- /dev/null
+++ b/arch/blackfin/kernel/ftrace-entry.S
@@ -0,0 +1,140 @@
+/*
+ * mcount and friends -- ftrace stuff
+ *
+ * Copyright (C) 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/linkage.h>
+#include <asm/ftrace.h>
+
+.text
+
+/* GCC will have called us before setting up the function prologue, so we
+ * can clobber the normal scratch registers, but we need to make sure to
+ * save/restore the registers used for argument passing (R0-R2) in case
+ * the profiled function is using them.  With data registers, R3 is the
+ * only one we can blow away.  With pointer registers, we have P0-P2.
+ *
+ * Upon entry, the RETS will point to the top of the current profiled
+ * function.  And since GCC setup the frame for us, the previous function
+ * will be waiting there.  mmmm pie.
+ */
+ENTRY(__mcount)
+	/* save third function arg early so we can do testing below */
+	[--sp] = r2;
+
+	/* load the function pointer to the tracer */
+	p0.l = _ftrace_trace_function;
+	p0.h = _ftrace_trace_function;
+	r3 = [p0];
+
+	/* optional micro optimization: don't call the stub tracer */
+	r2.l = _ftrace_stub;
+	r2.h = _ftrace_stub;
+	cc = r2 == r3;
+	if ! cc jump .Ldo_trace;
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+	/* if the ftrace_graph_return function pointer is not set to
+	 * the ftrace_stub entry, call prepare_ftrace_return().
+	 */
+	p0.l = _ftrace_graph_return;
+	p0.h = _ftrace_graph_return;
+	r3 = [p0];
+	cc = r2 == r3;
+	if ! cc jump _ftrace_graph_caller;
+
+	/* similarly, if the ftrace_graph_entry function pointer is not
+	 * set to the ftrace_graph_entry_stub entry, ...
+	 */
+	p0.l = _ftrace_graph_entry;
+	p0.h = _ftrace_graph_entry;
+	r2.l = _ftrace_graph_entry_stub;
+	r2.h = _ftrace_graph_entry_stub;
+	r3 = [p0];
+	cc = r2 == r3;
+	if ! cc jump _ftrace_graph_caller;
+#endif
+
+	r2 = [sp++];
+	rts;
+
+.Ldo_trace:
+
+	/* save first/second function arg and the return register */
+	[--sp] = r0;
+	[--sp] = r1;
+	[--sp] = rets;
+
+	/* setup the tracer function */
+	p0 = r3;
+
+	/* tracer(ulong frompc, ulong selfpc):
+	 *  frompc: the pc that did the call to ...
+	 *  selfpc: ... this location
+	 * the selfpc itself will need adjusting for the mcount call
+	 */
+	r1 = rets;
+	r0 = [fp + 4];
+	r1 += -MCOUNT_INSN_SIZE;
+
+	/* call the tracer */
+	call (p0);
+
+	/* restore state and get out of dodge */
+.Lfinish_trace:
+	rets = [sp++];
+	r1 = [sp++];
+	r0 = [sp++];
+	r2 = [sp++];
+
+.globl _ftrace_stub
+_ftrace_stub:
+	rts;
+ENDPROC(__mcount)
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+/* The prepare_ftrace_return() function is similar to the trace function
+ * except it takes a pointer to the location of the frompc.  This is so
+ * the prepare_ftrace_return() can hijack it temporarily for probing
+ * purposes.
+ */
+ENTRY(_ftrace_graph_caller)
+	/* save first/second function arg and the return register */
+	[--sp] = r0;
+	[--sp] = r1;
+	[--sp] = rets;
+
+	r0 = fp;
+	r1 = rets;
+	r0 += 4;
+	r1 += -MCOUNT_INSN_SIZE;
+	call _prepare_ftrace_return;
+
+	jump .Lfinish_trace;
+ENDPROC(_ftrace_graph_caller)
+
+/* Undo the rewrite caused by ftrace_graph_caller().  The common function
+ * ftrace_return_to_handler() will return the original rets so we can
+ * restore it and be on our way.
+ */
+ENTRY(_return_to_handler)
+	/* make sure original return values are saved */
+	[--sp] = p0;
+	[--sp] = r0;
+	[--sp] = r1;
+
+	/* get original return address */
+	call _ftrace_return_to_handler;
+	rets = r0;
+
+	/* anomaly 05000371 - make sure we have at least three instructions
+	 * between rets setting and the return
+	 */
+	r1 = [sp++];
+	r0 = [sp++];
+	p0 = [sp++];
+	rts;
+ENDPROC(_return_to_handler)
+#endif
diff --git a/arch/blackfin/kernel/ftrace.c b/arch/blackfin/kernel/ftrace.c
new file mode 100644
index 0000000..905bfc4
--- /dev/null
+++ b/arch/blackfin/kernel/ftrace.c
@@ -0,0 +1,42 @@
+/*
+ * ftrace graph code
+ *
+ * Copyright (C) 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/ftrace.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/atomic.h>
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+/*
+ * Hook the return address and push it in the stack of return addrs
+ * in current thread info.
+ */
+void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
+{
+	struct ftrace_graph_ent trace;
+	unsigned long return_hooker = (unsigned long)&return_to_handler;
+
+	if (unlikely(atomic_read(&current->tracing_graph_pause)))
+		return;
+
+	if (ftrace_push_return_trace(*parent, self_addr, &trace.depth) == -EBUSY)
+		return;
+
+	trace.func = self_addr;
+
+	/* Only trace if the calling function expects to */
+	if (!ftrace_graph_entry(&trace)) {
+		current->curr_ret_stack--;
+		return;
+	}
+
+	/* all is well in the world !  hijack RETS ... */
+	*parent = return_hooker;
+}
+
+#endif
diff --git a/arch/blackfin/kernel/ipipe.c b/arch/blackfin/kernel/ipipe.c
index 5fc4248..d8cde1f 100644
--- a/arch/blackfin/kernel/ipipe.c
+++ b/arch/blackfin/kernel/ipipe.c
@@ -99,7 +99,7 @@
 	 * interrupt.
 	 */
 	m_ack = (regs == NULL || irq == IRQ_SYSTMR || irq == IRQ_CORETMR);
-	this_domain = ipipe_current_domain;
+	this_domain = __ipipe_current_domain;
 
 	if (unlikely(test_bit(IPIPE_STICKY_FLAG, &this_domain->irqs[irq].control)))
 		head = &this_domain->p_link;
@@ -212,7 +212,9 @@
 
 int __ipipe_syscall_root(struct pt_regs *regs)
 {
+	struct ipipe_percpu_domain_data *p;
 	unsigned long flags;
+	int ret;
 
 	/*
 	 * We need to run the IRQ tail hook whenever we don't
@@ -231,29 +233,31 @@
 	/*
 	 * This routine either returns:
 	 * 0 -- if the syscall is to be passed to Linux;
-	 * 1 -- if the syscall should not be passed to Linux, and no
+	 * >0 -- if the syscall should not be passed to Linux, and no
 	 * tail work should be performed;
-	 * -1 -- if the syscall should not be passed to Linux but the
+	 * <0 -- if the syscall should not be passed to Linux but the
 	 * tail work has to be performed (for handling signals etc).
 	 */
 
-	if (__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL) &&
-	    __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs) > 0) {
-		if (ipipe_root_domain_p && !in_atomic()) {
-			/*
-			 * Sync pending VIRQs before _TIF_NEED_RESCHED
-			 * is tested.
-			 */
-			local_irq_save_hw(flags);
-			if ((ipipe_root_cpudom_var(irqpend_himask) & IPIPE_IRQMASK_VIRT) != 0)
-				__ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT);
-			local_irq_restore_hw(flags);
-			return -1;
-		}
+	if (!__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL))
+		return 0;
+
+	ret = __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs);
+
+	local_irq_save_hw(flags);
+
+	if (!__ipipe_root_domain_p) {
+		local_irq_restore_hw(flags);
 		return 1;
 	}
 
-	return 0;
+	p = ipipe_root_cpudom_ptr();
+	if ((p->irqpend_himask & IPIPE_IRQMASK_VIRT) != 0)
+		__ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT);
+
+	local_irq_restore_hw(flags);
+
+	return -ret;
 }
 
 unsigned long ipipe_critical_enter(void (*syncfn) (void))
@@ -329,9 +333,7 @@
 
 void ___ipipe_sync_pipeline(unsigned long syncmask)
 {
-	struct ipipe_domain *ipd = ipipe_current_domain;
-
-	if (ipd == ipipe_root_domain) {
+	if (__ipipe_root_domain_p) {
 		if (test_bit(IPIPE_SYNCDEFER_FLAG, &ipipe_root_cpudom_var(status)))
 			return;
 	}
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 80447f9..6454bab 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -1098,7 +1098,7 @@
 			CPUID, bfin_cpuid());
 
 	seq_printf(m, "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n"
-		"stepping\t: %d\n",
+		"stepping\t: %d ",
 		cpu, cclk/1000000, sclk/1000000,
 #ifdef CONFIG_MPU
 		"mpu on",
@@ -1107,7 +1107,16 @@
 #endif
 		revid);
 
-	seq_printf(m, "cpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
+	if (bfin_revid() != bfin_compiled_revid()) {
+		if (bfin_compiled_revid() == -1)
+			seq_printf(m, "(Compiled for Rev none)");
+		else if (bfin_compiled_revid() == 0xffff)
+			seq_printf(m, "(Compiled for Rev any)");
+		else
+			seq_printf(m, "(Compiled for Rev %d)", bfin_compiled_revid());
+	}
+
+	seq_printf(m, "\ncpu MHz\t\t: %lu.%03lu/%lu.%03lu\n",
 		cclk/1000000, cclk%1000000,
 		sclk/1000000, sclk%1000000);
 	seq_printf(m, "bogomips\t: %lu.%02lu\n"
@@ -1172,6 +1181,9 @@
 #ifdef __ARCH_SYNC_CORE_DCACHE
 	seq_printf(m, "SMP Dcache Flushes\t: %lu\n\n", cpudata->dcache_invld_count);
 #endif
+#ifdef __ARCH_SYNC_CORE_ICACHE
+	seq_printf(m, "SMP Icache Flushes\t: %lu\n\n", cpudata->icache_invld_count);
+#endif
 #ifdef CONFIG_BFIN_ICACHE_LOCK
 	switch ((cpudata->imemctl >> 3) & WAYALL_L) {
 	case WAY0_L:
diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c
new file mode 100644
index 0000000..30301e1
--- /dev/null
+++ b/arch/blackfin/kernel/stacktrace.c
@@ -0,0 +1,53 @@
+/*
+ * Blackfin stacktrace code (mostly copied from avr32)
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+#include <linux/thread_info.h>
+#include <linux/module.h>
+
+register unsigned long current_frame_pointer asm("FP");
+
+struct stackframe {
+	unsigned long fp;
+	unsigned long rets;
+};
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+void save_stack_trace(struct stack_trace *trace)
+{
+	unsigned long low, high;
+	unsigned long fp;
+	struct stackframe *frame;
+	int skip = trace->skip;
+
+	low = (unsigned long)task_stack_page(current);
+	high = low + THREAD_SIZE;
+	fp = current_frame_pointer;
+
+	while (fp >= low && fp <= (high - sizeof(*frame))) {
+		frame = (struct stackframe *)fp;
+
+		if (skip) {
+			skip--;
+		} else {
+			trace->entries[trace->nr_entries++] = frame->rets;
+			if (trace->nr_entries >= trace->max_entries)
+				break;
+		}
+
+		/*
+		 * The next frame must be at a higher address than the
+		 * current frame.
+		 */
+		low = fp + sizeof(*frame);
+		fp = frame->fp;
+	}
+}
+EXPORT_SYMBOL_GPL(save_stack_trace);
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index aa76dfb..d279552 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -27,6 +27,7 @@
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <linux/bug.h>
 #include <linux/uaccess.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -238,6 +239,11 @@
 
 }
 
+static int kernel_mode_regs(struct pt_regs *regs)
+{
+	return regs->ipend & 0xffc0;
+}
+
 asmlinkage void trap_c(struct pt_regs *fp)
 {
 #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
@@ -246,6 +252,7 @@
 #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 	unsigned int cpu = smp_processor_id();
 #endif
+	const char *strerror = NULL;
 	int sig = 0;
 	siginfo_t info;
 	unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE;
@@ -259,27 +266,10 @@
 	 * double faults if the stack has become corrupt
 	 */
 
-	/* If the fault was caused by a kernel thread, or interrupt handler
-	 * we will kernel panic, so the system reboots.
-	 * If KGDB is enabled, don't set this for kernel breakpoints
-	*/
-
-	/* TODO: check to see if we are in some sort of deferred HWERR
-	 * that we should be able to recover from, not kernel panic
-	 */
-	if ((bfin_read_IPEND() & 0xFFC0) && (trapnr != VEC_STEP)
-#ifdef CONFIG_KGDB
-		&& (trapnr != VEC_EXCPT02)
+#ifndef CONFIG_KGDB
+	/* IPEND is skipped if KGDB isn't enabled (see entry code) */
+	fp->ipend = bfin_read_IPEND();
 #endif
-	){
-		console_verbose();
-		oops_in_progress = 1;
-	} else if (current) {
-		if (current->mm == NULL) {
-			console_verbose();
-			oops_in_progress = 1;
-		}
-	}
 
 	/* trap_c() will be called for exceptions. During exceptions
 	 * processing, the pc value should be set with retx value.
@@ -307,15 +297,15 @@
 		sig = SIGTRAP;
 		CHK_DEBUGGER_TRAP_MAYBE();
 		/* Check if this is a breakpoint in kernel space */
-		if (fp->ipend & 0xffc0)
-			return;
+		if (kernel_mode_regs(fp))
+			goto traps_done;
 		else
 			break;
 	/* 0x03 - User Defined, userspace stack overflow */
 	case VEC_EXCPT03:
 		info.si_code = SEGV_STACKFLOW;
 		sig = SIGSEGV;
-		verbose_printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x03(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x02 - KGDB initial connection and break signal trap */
@@ -324,7 +314,7 @@
 		info.si_code = TRAP_ILLTRAP;
 		sig = SIGTRAP;
 		CHK_DEBUGGER_TRAP();
-		return;
+		goto traps_done;
 #endif
 	/* 0x04 - User Defined */
 	/* 0x05 - User Defined */
@@ -344,7 +334,7 @@
 	case VEC_EXCPT04 ... VEC_EXCPT15:
 		info.si_code = ILL_ILLPARAOP;
 		sig = SIGILL;
-		verbose_printk(KERN_NOTICE EXC_0x04(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x04(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x10 HW Single step, handled here */
@@ -353,15 +343,15 @@
 		sig = SIGTRAP;
 		CHK_DEBUGGER_TRAP_MAYBE();
 		/* Check if this is a single step in kernel space */
-		if (fp->ipend & 0xffc0)
-			return;
+		if (kernel_mode_regs(fp))
+			goto traps_done;
 		else
 			break;
 	/* 0x11 - Trace Buffer Full, handled here */
 	case VEC_OVFLOW:
 		info.si_code = TRAP_TRACEFLOW;
 		sig = SIGTRAP;
-		verbose_printk(KERN_NOTICE EXC_0x11(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x11(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x12 - Reserved, Caught by default */
@@ -381,37 +371,54 @@
 	/* 0x20 - Reserved, Caught by default */
 	/* 0x21 - Undefined Instruction, handled here */
 	case VEC_UNDEF_I:
+#ifdef CONFIG_BUG
+		if (kernel_mode_regs(fp)) {
+			switch (report_bug(fp->pc, fp)) {
+			case BUG_TRAP_TYPE_NONE:
+				break;
+			case BUG_TRAP_TYPE_WARN:
+				dump_bfin_trace_buffer();
+				fp->pc += 2;
+				goto traps_done;
+			case BUG_TRAP_TYPE_BUG:
+				/* call to panic() will dump trace, and it is
+				 * off at this point, so it won't be clobbered
+				 */
+				panic("BUG()");
+			}
+		}
+#endif
 		info.si_code = ILL_ILLOPC;
 		sig = SIGILL;
-		verbose_printk(KERN_NOTICE EXC_0x21(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x21(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x22 - Illegal Instruction Combination, handled here */
 	case VEC_ILGAL_I:
 		info.si_code = ILL_ILLPARAOP;
 		sig = SIGILL;
-		verbose_printk(KERN_NOTICE EXC_0x22(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x22(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x23 - Data CPLB protection violation, handled here */
 	case VEC_CPLB_VL:
 		info.si_code = ILL_CPLB_VI;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x23(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x23(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x24 - Data access misaligned, handled here */
 	case VEC_MISALI_D:
 		info.si_code = BUS_ADRALN;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x24(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x24(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x25 - Unrecoverable Event, handled here */
 	case VEC_UNCOV:
 		info.si_code = ILL_ILLEXCPT;
 		sig = SIGILL;
-		verbose_printk(KERN_NOTICE EXC_0x25(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x25(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr,
@@ -419,7 +426,7 @@
 	case VEC_CPLB_M:
 		info.si_code = BUS_ADRALN;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x26(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x26(KERN_NOTICE);
 		break;
 	/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
 	case VEC_CPLB_MHIT:
@@ -427,10 +434,10 @@
 		sig = SIGSEGV;
 #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 		if (cpu_pda[cpu].dcplb_fault_addr < FIXED_CODE_START)
-			verbose_printk(KERN_NOTICE "NULL pointer access\n");
+			strerror = KERN_NOTICE "NULL pointer access\n";
 		else
 #endif
-			verbose_printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
+			strerror = KERN_NOTICE EXC_0x27(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x28 - Emulation Watchpoint, handled here */
@@ -440,8 +447,8 @@
 		pr_debug(EXC_0x28(KERN_DEBUG));
 		CHK_DEBUGGER_TRAP_MAYBE();
 		/* Check if this is a watchpoint in kernel space */
-		if (fp->ipend & 0xffc0)
-			return;
+		if (kernel_mode_regs(fp))
+			goto traps_done;
 		else
 			break;
 #ifdef CONFIG_BF535
@@ -449,7 +456,7 @@
 	case VEC_ISTRU_VL:      /* ADSP-BF535 only (MH) */
 		info.si_code = BUS_OPFETCH;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE "BF535: VEC_ISTRU_VL\n");
+		strerror = KERN_NOTICE "BF535: VEC_ISTRU_VL\n";
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 #else
@@ -459,21 +466,21 @@
 	case VEC_MISALI_I:
 		info.si_code = BUS_ADRALN;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x2A(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x2B - Instruction CPLB protection violation, handled here */
 	case VEC_CPLB_I_VL:
 		info.si_code = ILL_CPLB_VI;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x2B(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */
 	case VEC_CPLB_I_M:
 		info.si_code = ILL_CPLB_MISS;
 		sig = SIGBUS;
-		verbose_printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x2C(KERN_NOTICE);
 		break;
 	/* 0x2D - Instruction CPLB Multiple Hits, handled here */
 	case VEC_CPLB_I_MHIT:
@@ -481,17 +488,17 @@
 		sig = SIGSEGV;
 #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 		if (cpu_pda[cpu].icplb_fault_addr < FIXED_CODE_START)
-			verbose_printk(KERN_NOTICE "Jump to NULL address\n");
+			strerror = KERN_NOTICE "Jump to NULL address\n";
 		else
 #endif
-			verbose_printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
+			strerror = KERN_NOTICE EXC_0x2D(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x2E - Illegal use of Supervisor Resource, handled here */
 	case VEC_ILL_RES:
 		info.si_code = ILL_PRVOPC;
 		sig = SIGILL;
-		verbose_printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE));
+		strerror = KERN_NOTICE EXC_0x2E(KERN_NOTICE);
 		CHK_DEBUGGER_TRAP_MAYBE();
 		break;
 	/* 0x2F - Reserved, Caught by default */
@@ -519,17 +526,17 @@
 		case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):
 			info.si_code = BUS_ADRALN;
 			sig = SIGBUS;
-			verbose_printk(KERN_NOTICE HWC_x2(KERN_NOTICE));
+			strerror = KERN_NOTICE HWC_x2(KERN_NOTICE);
 			break;
 		/* External Memory Addressing Error */
 		case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):
 			info.si_code = BUS_ADRERR;
 			sig = SIGBUS;
-			verbose_printk(KERN_NOTICE HWC_x3(KERN_NOTICE));
+			strerror = KERN_NOTICE HWC_x3(KERN_NOTICE);
 			break;
 		/* Performance Monitor Overflow */
 		case (SEQSTAT_HWERRCAUSE_PERF_FLOW):
-			verbose_printk(KERN_NOTICE HWC_x12(KERN_NOTICE));
+			strerror = KERN_NOTICE HWC_x12(KERN_NOTICE);
 			break;
 		/* RAISE 5 instruction */
 		case (SEQSTAT_HWERRCAUSE_RAISE_5):
@@ -546,7 +553,6 @@
 	 * if we get here we hit a reserved one, so panic
 	 */
 	default:
-		oops_in_progress = 1;
 		info.si_code = ILL_ILLPARAOP;
 		sig = SIGILL;
 		verbose_printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n",
@@ -557,6 +563,16 @@
 
 	BUG_ON(sig == 0);
 
+	/* If the fault was caused by a kernel thread, or interrupt handler
+	 * we will kernel panic, so the system reboots.
+	 */
+	if (kernel_mode_regs(fp) || (current && !current->mm)) {
+		console_verbose();
+		oops_in_progress = 1;
+		if (strerror)
+			verbose_printk(strerror);
+	}
+
 	if (sig != SIGTRAP) {
 		dump_bfin_process(fp);
 		dump_bfin_mem(fp);
@@ -606,8 +622,8 @@
 	if (ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8))
 		fp->pc = SAFE_USER_INSTRUCTION;
 
+ traps_done:
 	trace_buffer_restore(j);
-	return;
 }
 
 /* Typical exception handling routines	*/
@@ -792,6 +808,18 @@
 }
 EXPORT_SYMBOL(dump_bfin_trace_buffer);
 
+#ifdef CONFIG_BUG
+int is_valid_bugaddr(unsigned long addr)
+{
+	unsigned short opcode;
+
+	if (!get_instruction(&opcode, (unsigned short *)addr))
+		return 0;
+
+	return opcode == BFIN_BUG_OPCODE;
+}
+#endif
+
 /*
  * Checks to see if the address pointed to is either a
  * 16-bit CALL instruction, or a 32-bit CALL instruction
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 8b67167..6ac307c 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -54,6 +54,7 @@
 		SCHED_TEXT
 #endif
 		LOCK_TEXT
+		IRQENTRY_TEXT
 		KPROBES_TEXT
 		*(.text.*)
 		*(.fixup)
@@ -166,6 +167,20 @@
 	}
 	PERCPU(4)
 	SECURITY_INIT
+
+	/* we have to discard exit text and such at runtime, not link time, to
+	 * handle embedded cross-section references (alt instructions, bug
+	 * table, eh_frame, etc...)
+	 */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
+
 	.init.ramfs :
 	{
 		. = ALIGN(4);
@@ -264,8 +279,6 @@
 
 	/DISCARD/ :
 	{
-		EXIT_TEXT
-		EXIT_DATA
 		*(.exitcall.exit)
 	}
 }
diff --git a/arch/blackfin/lib/checksum.c b/arch/blackfin/lib/checksum.c
index 762a7f0..cd605e7 100644
--- a/arch/blackfin/lib/checksum.c
+++ b/arch/blackfin/lib/checksum.c
@@ -116,6 +116,7 @@
 {
 	return (__force __sum16)~do_csum(buff, len);
 }
+EXPORT_SYMBOL(ip_compute_csum);
 
 /*
  * copy from fs while checksumming, otherwise like csum_partial
@@ -130,6 +131,7 @@
 	memcpy(dst, (__force void *)src, len);
 	return csum_partial(dst, len, sum);
 }
+EXPORT_SYMBOL(csum_partial_copy_from_user);
 
 /*
  * copy from ds while checksumming, otherwise like csum_partial
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index 62bba09..1382f03 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -246,7 +246,7 @@
 		.modalias = "m25p80", /* Name of spi_driver for this device */
 		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0, /* Framework bus number */
-		.chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
+		.chip_select = 2, /* On BF518F-EZBRD it's SPI0_SSEL2 */
 		.platform_data = &bfin_spi_flash_data,
 		.controller_data = &spi_flash_chip_info,
 		.mode = SPI_MODE_3,
@@ -369,6 +369,11 @@
 	[1] = {
 		.start = CH_SPI0,
 		.end   = CH_SPI0,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI0,
+		.end   = IRQ_SPI0,
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -399,6 +404,11 @@
 	[1] = {
 		.start = CH_SPI1,
 		.end   = CH_SPI1,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI1,
+		.end   = IRQ_SPI1,
 		.flags = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index 6d6f9ef..1eaf27f 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -664,6 +664,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 1435c5d..9f9c000 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -467,6 +467,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 147edd1..3e5b7db 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -723,6 +723,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 895f213..38cf8ff 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -266,6 +266,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c
index 0765872..9ecdc36 100644
--- a/arch/blackfin/mach-bf533/boards/blackstamp.c
+++ b/arch/blackfin/mach-bf533/boards/blackstamp.c
@@ -162,6 +162,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c
index a727e53..1443e92 100644
--- a/arch/blackfin/mach-bf533/boards/cm_bf533.c
+++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c
@@ -160,6 +160,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 842f1c9..89a5ec4 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -196,6 +196,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index e19c565..a68ade8 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -299,6 +299,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c
index 4fee196..2a87d1c 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c
@@ -182,8 +182,13 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
-	}
+	},
 };
 
 /* SPI controller data */
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
index 3c15981..399f81d 100644
--- a/arch/blackfin/mach-bf537/boards/minotaur.c
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -184,6 +184,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index 26707ce..838240f 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -398,8 +398,13 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
-	}
+	},
 };
 
 /* SPI controller data */
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index dfb5036..ff7228c 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1345,7 +1345,7 @@
 #if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE)
 	{
 		I2C_BOARD_INFO("pmic-adp5520", 0x32),
-		.irq = IRQ_PF7,
+		.irq = IRQ_PG0,
 		.platform_data = (void *)&adp5520_pdev_data,
 	},
 #endif
diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
index 2805745..e523e6e 100644
--- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
@@ -182,6 +182,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index e37cb93..57695b4 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -352,6 +352,11 @@
 	[1] = {
 		.start = CH_SPI0,
 		.end   = CH_SPI0,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI0,
+		.end   = IRQ_SPI0,
 		.flags = IORESOURCE_IRQ,
 	}
 };
@@ -366,6 +371,11 @@
 	[1] = {
 		.start = CH_SPI1,
 		.end   = CH_SPI1,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI1,
+		.end   = IRQ_SPI1,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index f53ad68..f5a3c30 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -612,6 +612,11 @@
 	[1] = {
 		.start = CH_SPI0,
 		.end   = CH_SPI0,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI0,
+		.end   = IRQ_SPI0,
 		.flags = IORESOURCE_IRQ,
 	}
 };
@@ -626,6 +631,11 @@
 	[1] = {
 		.start = CH_SPI1,
 		.end   = CH_SPI1,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI1,
+		.end   = IRQ_SPI1,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index add5a17..805a57b 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -396,6 +396,8 @@
 #endif
 
 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#include <linux/smsc911x.h>
+
 static struct resource smsc911x_resources[] = {
 	{
 		.name = "smsc911x-memory",
@@ -409,11 +411,22 @@
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 	},
 };
+
+static struct smsc911x_platform_config smsc911x_config = {
+	.flags = SMSC911X_USE_32BIT,
+	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+	.phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
 static struct platform_device smsc911x_device = {
 	.name = "smsc911x",
 	.id = 0,
 	.num_resources = ARRAY_SIZE(smsc911x_resources),
 	.resource = smsc911x_resources,
+	.dev = {
+		.platform_data = &smsc911x_config,
+	},
 };
 #endif
 
@@ -741,6 +754,11 @@
 	[1] = {
 		.start = CH_SPI0,
 		.end   = CH_SPI0,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI0,
+		.end   = IRQ_SPI0,
 		.flags = IORESOURCE_IRQ,
 	}
 };
@@ -755,6 +773,11 @@
 	[1] = {
 		.start = CH_SPI1,
 		.end   = CH_SPI1,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI1,
+		.end   = IRQ_SPI1,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index 0dd9685..0c9d72c 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -177,8 +177,13 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
-	}
+	},
 };
 
 /* SPI controller data */
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 0e2178a..b5ef7ff 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -304,6 +304,11 @@
 	[1] = {
 		.start = CH_SPI,
 		.end   = CH_SPI,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = IRQ_SPI,
+		.end   = IRQ_SPI,
 		.flags = IORESOURCE_IRQ,
 	}
 };
diff --git a/arch/blackfin/mach-common/cache-c.c b/arch/blackfin/mach-common/cache-c.c
index e6ab1f8..b59ce3c 100644
--- a/arch/blackfin/mach-common/cache-c.c
+++ b/arch/blackfin/mach-common/cache-c.c
@@ -16,9 +16,21 @@
 void blackfin_invalidate_entire_dcache(void)
 {
 	u32 dmem = bfin_read_DMEM_CONTROL();
-	SSYNC();
 	bfin_write_DMEM_CONTROL(dmem & ~0xc);
 	SSYNC();
 	bfin_write_DMEM_CONTROL(dmem);
 	SSYNC();
 }
+
+/* Invalidate the Entire Instruction cache by
+ * clearing IMC bit
+ */
+void blackfin_invalidate_entire_icache(void)
+{
+	u32 imem = bfin_read_IMEM_CONTROL();
+	bfin_write_IMEM_CONTROL(imem & ~0x4);
+	SSYNC();
+	bfin_write_IMEM_CONTROL(imem);
+	SSYNC();
+}
+
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index da0558a..31fa313 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -42,6 +42,7 @@
 #include <asm/thread_info.h>  /* TIF_NEED_RESCHED */
 #include <asm/asm-offsets.h>
 #include <asm/trace.h>
+#include <asm/traps.h>
 
 #include <asm/context.S>
 
@@ -84,13 +85,15 @@
 	if !cc jump _bfin_return_from_exception;
 	/* fall through */
 	R7 = P4;
-	R6 = 0x26;	/* Data CPLB Miss */
+	R6 = VEC_CPLB_M;	/* Data CPLB Miss */
 	cc = R6 == R7;
 	if cc jump _ex_dcplb_miss (BP);
-	R6 = 0x23;	/* Data CPLB Miss */
+#ifdef CONFIG_MPU
+	R6 = VEC_CPLB_VL;	/* Data CPLB Violation */
 	cc = R6 == R7;
 	if cc jump _ex_dcplb_viol (BP);
-	/* Handle 0x23 Data CPLB Protection Violation
+#endif
+	/* Handle Data CPLB Protection Violation
 	 * and Data CPLB Multiple Hits - Linux Trap Zero
 	 */
 	jump _ex_trap_c;
@@ -270,7 +273,7 @@
 	r6.l = lo(SEQSTAT_EXCAUSE);
 	r6.h = hi(SEQSTAT_EXCAUSE);
 	r7 = r7 & r6;
-	r6 = 0x25;
+	r6 = VEC_UNCOV;
 	CC = R7 == R6;
 	if CC JUMP _double_fault;
 #endif
@@ -1605,6 +1608,7 @@
 	.long _sys_inotify_init1	/* 365 */
 	.long _sys_preadv
 	.long _sys_pwritev
+	.long _sys_rt_tgsigqueueinfo
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 3b8ebae..6184005 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -144,7 +144,7 @@
 
 static irqreturn_t ipi_handler(int irq, void *dev_instance)
 {
-	struct ipi_message *msg, *mg;
+	struct ipi_message *msg;
 	struct ipi_message_queue *msg_queue;
 	unsigned int cpu = smp_processor_id();
 
@@ -154,7 +154,8 @@
 	msg_queue->count++;
 
 	spin_lock(&msg_queue->lock);
-	list_for_each_entry_safe(msg, mg, &msg_queue->head, list) {
+	while (!list_empty(&msg_queue->head)) {
+		msg = list_entry(msg_queue->head.next, typeof(*msg), list);
 		list_del(&msg->list);
 		switch (msg->type) {
 		case BFIN_IPI_RESCHEDULE:
@@ -221,7 +222,7 @@
 	for_each_cpu_mask(cpu, callmap) {
 		msg_queue = &per_cpu(ipi_msg_queue, cpu);
 		spin_lock_irqsave(&msg_queue->lock, flags);
-		list_add(&msg->list, &msg_queue->head);
+		list_add_tail(&msg->list, &msg_queue->head);
 		spin_unlock_irqrestore(&msg_queue->lock, flags);
 		platform_send_ipi_cpu(cpu);
 	}
@@ -261,7 +262,7 @@
 
 	msg_queue = &per_cpu(ipi_msg_queue, cpu);
 	spin_lock_irqsave(&msg_queue->lock, flags);
-	list_add(&msg->list, &msg_queue->head);
+	list_add_tail(&msg->list, &msg_queue->head);
 	spin_unlock_irqrestore(&msg_queue->lock, flags);
 	platform_send_ipi_cpu(cpu);
 
@@ -292,7 +293,7 @@
 
 	msg_queue = &per_cpu(ipi_msg_queue, cpu);
 	spin_lock_irqsave(&msg_queue->lock, flags);
-	list_add(&msg->list, &msg_queue->head);
+	list_add_tail(&msg->list, &msg_queue->head);
 	spin_unlock_irqrestore(&msg_queue->lock, flags);
 	platform_send_ipi_cpu(cpu);
 
@@ -320,7 +321,7 @@
 	for_each_cpu_mask(cpu, callmap) {
 		msg_queue = &per_cpu(ipi_msg_queue, cpu);
 		spin_lock_irqsave(&msg_queue->lock, flags);
-		list_add(&msg->list, &msg_queue->head);
+		list_add_tail(&msg->list, &msg_queue->head);
 		spin_unlock_irqrestore(&msg_queue->lock, flags);
 		platform_send_ipi_cpu(cpu);
 	}
@@ -468,6 +469,17 @@
 }
 EXPORT_SYMBOL_GPL(smp_icache_flush_range_others);
 
+#ifdef __ARCH_SYNC_CORE_ICACHE
+void resync_core_icache(void)
+{
+	unsigned int cpu = get_cpu();
+	blackfin_invalidate_entire_icache();
+	++per_cpu(cpu_data, cpu).icache_invld_count;
+	put_cpu();
+}
+EXPORT_SYMBOL(resync_core_icache);
+#endif
+
 #ifdef __ARCH_SYNC_CORE_DCACHE
 unsigned long barrier_mask __attribute__ ((__section__(".l2.bss")));
 
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 783da85..d6d35b2 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -963,7 +963,7 @@
 CONFIG_SENSORS_PCF8574=y
 # CONFIG_PCF8575 is not set
 CONFIG_SENSORS_PCF8591=y
-CONFIG_SENSORS_MAX6875=y
+CONFIG_EEPROM_MAX6875=y
 # CONFIG_SENSORS_TSL2550 is not set
 CONFIG_I2C_DEBUG_CORE=y
 CONFIG_I2C_DEBUG_ALGO=y
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 8426d3b..fadb351 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -1849,7 +1849,7 @@
 CONFIG_SENSORS_PCF8574=m
 CONFIG_SENSORS_PCA9539=m
 CONFIG_SENSORS_PCF8591=m
-CONFIG_SENSORS_MAX6875=m
+CONFIG_EEPROM_MAX6875=m
 # CONFIG_SENSORS_TSL2550 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 93a6189..9fb344d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -93,10 +93,6 @@
 	bool
 	default y
 
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
 config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
@@ -129,6 +125,7 @@
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_OPROFILE
 	select HAVE_SYSCALL_WRAPPERS if PPC64
+	select GENERIC_ATOMIC64 if PPC32
 
 config EARLY_PRINTK
 	bool
diff --git a/arch/powerpc/boot/install.sh b/arch/powerpc/boot/install.sh
index 51b2387..98312d1 100644
--- a/arch/powerpc/boot/install.sh
+++ b/arch/powerpc/boot/install.sh
@@ -18,6 +18,9 @@
 #   $5 and more - kernel boot files; zImage*, uImage, cuImage.*, etc.
 #
 
+# Bail with error code if anything goes wrong
+set -e
+
 # User may have a custom install script
 
 if [ -x ~/bin/${CROSS_COMPILE}installkernel ]; then exec ~/bin/${CROSS_COMPILE}installkernel "$@"; fi
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 7d044df..12dc7c4 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -1808,7 +1808,7 @@
 CONFIG_SENSORS_PCA9539=m
 CONFIG_SENSORS_PCF8591=m
 # CONFIG_TPS65010 is not set
-CONFIG_SENSORS_MAX6875=m
+CONFIG_EEPROM_MAX6875=m
 CONFIG_SENSORS_TSL2550=m
 CONFIG_MCU_MPC8349EMITX=m
 # CONFIG_I2C_DEBUG_CORE is not set
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index b7d2d07..4012483 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -470,6 +470,9 @@
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
+#else  /* __powerpc64__ */
+#include <asm-generic/atomic64.h>
+
 #endif /* __powerpc64__ */
 
 #include <asm-generic/atomic-long.h>
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 5351237..b7f8f4a 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -80,7 +80,7 @@
 	__asm__ __volatile__("wrteei 0": : :"memory");
 #else
 	unsigned long msr;
-	__asm__ __volatile__("": : :"memory");
+
 	msr = mfmsr();
 	SET_MSR_EE(msr & ~MSR_EE);
 #endif
@@ -92,7 +92,7 @@
 	__asm__ __volatile__("wrteei 1": : :"memory");
 #else
 	unsigned long msr;
-	__asm__ __volatile__("": : :"memory");
+
 	msr = mfmsr();
 	SET_MSR_EE(msr | MSR_EE);
 #endif
@@ -108,7 +108,6 @@
 #else
 	SET_MSR_EE(msr & ~MSR_EE);
 #endif
-	__asm__ __volatile__("": : :"memory");
 }
 
 #define local_save_flags(flags)	((flags) = mfmsr())
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 7464c0d..7ead7c1 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -35,6 +35,16 @@
 #define IOMMU_PAGE_MASK       (~((1 << IOMMU_PAGE_SHIFT) - 1))
 #define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE)
 
+/* Cell page table entries */
+#define CBE_IOPTE_PP_W		0x8000000000000000ul /* protection: write */
+#define CBE_IOPTE_PP_R		0x4000000000000000ul /* protection: read */
+#define CBE_IOPTE_M		0x2000000000000000ul /* coherency required */
+#define CBE_IOPTE_SO_R		0x1000000000000000ul /* ordering: writes */
+#define CBE_IOPTE_SO_RW		0x1800000000000000ul /* ordering: r & w */
+#define CBE_IOPTE_RPN_Mask	0x07fffffffffff000ul /* RPN */
+#define CBE_IOPTE_H		0x0000000000000800ul /* cache hint */
+#define CBE_IOPTE_IOID_Mask	0x00000000000007fful /* ioid */
+
 /* Boot time flags */
 extern int iommu_is_off;
 extern int iommu_force_on;
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index cdb6fd8..7f065e1 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -53,6 +53,13 @@
 extern u64 ps3_os_area_get_rtc_diff(void);
 extern void ps3_os_area_set_rtc_diff(u64 rtc_diff);
 
+struct ps3_os_area_flash_ops {
+	ssize_t (*read)(void *buf, size_t count, loff_t pos);
+	ssize_t (*write)(const void *buf, size_t count, loff_t pos);
+};
+
+extern void ps3_os_area_flash_register(const struct ps3_os_area_flash_ops *ops);
+
 /* dma routines */
 
 enum ps3_dma_page_size {
@@ -418,15 +425,15 @@
  * @data: Data to set
  */
 
-static inline void ps3_system_bus_set_driver_data(
+static inline void ps3_system_bus_set_drvdata(
 	struct ps3_system_bus_device *dev, void *data)
 {
-	dev->core.driver_data = data;
+	dev_set_drvdata(&dev->core, data);
 }
-static inline void *ps3_system_bus_get_driver_data(
+static inline void *ps3_system_bus_get_drvdata(
 	struct ps3_system_bus_device *dev)
 {
-	return dev->core.driver_data;
+	return dev_get_drvdata(&dev->core);
 }
 
 /* These two need global scope for get_dma_ops(). */
@@ -520,7 +527,4 @@
 u32 ps3_get_hw_thread_id(int cpu);
 u64 ps3_get_spe_id(void *arg);
 
-/* mutex synchronizing GPU accesses and video mode changes */
-extern struct mutex ps3_gpu_mutex;
-
 #endif
diff --git a/arch/powerpc/include/asm/ps3gpu.h b/arch/powerpc/include/asm/ps3gpu.h
new file mode 100644
index 0000000..b2b8959
--- /dev/null
+++ b/arch/powerpc/include/asm/ps3gpu.h
@@ -0,0 +1,86 @@
+/*
+ *  PS3 GPU declarations.
+ *
+ *  Copyright 2009 Sony Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _ASM_POWERPC_PS3GPU_H
+#define _ASM_POWERPC_PS3GPU_H
+
+#include <linux/mutex.h>
+
+#include <asm/lv1call.h>
+
+
+#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC	0x101
+#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP	0x102
+
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP	0x600
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT		0x601
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC	0x602
+#define L1GPU_CONTEXT_ATTRIBUTE_FB_CLOSE	0x603
+
+#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION	(1ULL << 32)
+
+#define L1GPU_DISPLAY_SYNC_HSYNC		1
+#define L1GPU_DISPLAY_SYNC_VSYNC		2
+
+
+/* mutex synchronizing GPU accesses and video mode changes */
+extern struct mutex ps3_gpu_mutex;
+
+
+static inline int lv1_gpu_display_sync(u64 context_handle, u64 head,
+				       u64 ddr_offset)
+{
+	return lv1_gpu_context_attribute(context_handle,
+					 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
+					 head, ddr_offset, 0, 0);
+}
+
+static inline int lv1_gpu_display_flip(u64 context_handle, u64 head,
+				       u64 ddr_offset)
+{
+	return lv1_gpu_context_attribute(context_handle,
+					 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
+					 head, ddr_offset, 0, 0);
+}
+
+static inline int lv1_gpu_fb_setup(u64 context_handle, u64 xdr_lpar,
+				   u64 xdr_size, u64 ioif_offset)
+{
+	return lv1_gpu_context_attribute(context_handle,
+					 L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
+					 xdr_lpar, xdr_size, ioif_offset, 0);
+}
+
+static inline int lv1_gpu_fb_blit(u64 context_handle, u64 ddr_offset,
+				  u64 ioif_offset, u64 sync_width, u64 pitch)
+{
+	return lv1_gpu_context_attribute(context_handle,
+					 L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
+					 ddr_offset, ioif_offset, sync_width,
+					 pitch);
+}
+
+static inline int lv1_gpu_fb_close(u64 context_handle)
+{
+	return lv1_gpu_context_attribute(context_handle,
+					 L1GPU_CONTEXT_ATTRIBUTE_FB_CLOSE, 0,
+					 0, 0, 0);
+}
+
+#endif /* _ASM_POWERPC_PS3GPU_H */
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index fb359b0..a3c28e4 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -745,11 +745,11 @@
 			asm volatile("mfmsr %0" : "=r" (rval)); rval;})
 #ifdef CONFIG_PPC64
 #define __mtmsrd(v, l)	asm volatile("mtmsrd %0," __stringify(l) \
-				     : : "r" (v))
+				     : : "r" (v) : "memory")
 #define mtmsrd(v)	__mtmsrd((v), 0)
 #define mtmsr(v)	mtmsrd(v)
 #else
-#define mtmsr(v)	asm volatile("mtmsr %0" : : "r" (v))
+#define mtmsr(v)	asm volatile("mtmsr %0" : : "r" (v) : "memory")
 #endif
 
 #define mfspr(rn)	({unsigned long rval; \
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index a0b92de..370600ca 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -325,3 +325,4 @@
 SYSCALL_SPU(perf_counter_open)
 COMPAT_SYS_SPU(preadv)
 COMPAT_SYS_SPU(pwritev)
+COMPAT_SYS(rt_tgsigqueueinfo)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 4badac2..cef080b 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -344,10 +344,11 @@
 #define __NR_perf_counter_open	319
 #define __NR_preadv		320
 #define __NR_pwritev		321
+#define __NR_rt_tgsigqueueinfo	322
 
 #ifdef __KERNEL__
 
-#define __NR_syscalls		322
+#define __NR_syscalls		323
 
 #define __NR__exit __NR_exit
 #define NR_syscalls	__NR_syscalls
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index a7def5f..612b0c4 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -125,6 +125,7 @@
 systbl_chk: $(src)/systbl_chk.sh $(obj)/systbl_chk.i
 	$(call cmd,systbl_chk)
 
+ifeq ($(CONFIG_PPC_OF_BOOT_TRAMPOLINE),y)
 $(obj)/built-in.o:		prom_init_check
 
 quiet_cmd_prom_init_check = CALL    $<
@@ -133,5 +134,6 @@
 PHONY += prom_init_check
 prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o
 	$(call cmd,prom_init_check)
+endif
 
 clean-files := vmlinux.lds
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index f46548e..1f68160 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -424,8 +424,8 @@
 	printk("htab_hash_mask                = 0x%lx\n", htab_hash_mask);
 #endif /* CONFIG_PPC_STD_MMU_64 */
 	if (PHYSICAL_START > 0)
-		printk("physical_start                = 0x%lx\n",
-		       PHYSICAL_START);
+		printk("physical_start                = 0x%llx\n",
+		       (unsigned long long)PHYSICAL_START);
 	printk("-----------------------------------------------------\n");
 
 	DBG(" <- setup_system()\n");
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index bee1443..15391c2 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -52,6 +52,7 @@
 #include <linux/jiffies.h>
 #include <linux/posix-timers.h>
 #include <linux/irq.h>
+#include <linux/delay.h>
 
 #include <asm/io.h>
 #include <asm/processor.h>
@@ -1143,6 +1144,15 @@
 
 }
 
+/* We don't need to calibrate delay, we use the CPU timebase for that */
+void calibrate_delay(void)
+{
+	/* Some generic code (such as spinlock debug) use loops_per_jiffy
+	 * as the number of __delay(1) in a jiffy, so make it so
+	 */
+	loops_per_jiffy = tb_ticks_per_jiffy;
+}
+
 static int __init rtc_init(void)
 {
 	struct platform_device *pdev;
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 0ce45c2..c71498d 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -329,7 +329,7 @@
 
 static int axon_msi_shutdown(struct of_device *device)
 {
-	struct axon_msic *msic = device->dev.platform_data;
+	struct axon_msic *msic = dev_get_drvdata(&device->dev);
 	u32 tmp;
 
 	pr_debug("axon_msi: disabling %s\n",
@@ -416,7 +416,7 @@
 	msic->read_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG)
 				& MSIC_FIFO_SIZE_MASK;
 
-	device->dev.platform_data = msic;
+	dev_set_drvdata(&device->dev, msic);
 
 	ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs;
 	ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs;
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index bed4690..5b34fc2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -100,16 +100,6 @@
 #define IOSTE_PS_1M		0x0000000000000005ul /*   - 1MB  */
 #define IOSTE_PS_16M		0x0000000000000007ul /*   - 16MB */
 
-/* Page table entries */
-#define IOPTE_PP_W		0x8000000000000000ul /* protection: write */
-#define IOPTE_PP_R		0x4000000000000000ul /* protection: read */
-#define IOPTE_M			0x2000000000000000ul /* coherency required */
-#define IOPTE_SO_R		0x1000000000000000ul /* ordering: writes */
-#define IOPTE_SO_RW             0x1800000000000000ul /* ordering: r & w */
-#define IOPTE_RPN_Mask		0x07fffffffffff000ul /* RPN */
-#define IOPTE_H			0x0000000000000800ul /* cache hint */
-#define IOPTE_IOID_Mask		0x00000000000007fful /* ioid */
-
 
 /* IOMMU sizing */
 #define IO_SEGMENT_SHIFT	28
@@ -193,19 +183,21 @@
 	 */
 	const unsigned long prot = 0xc48;
 	base_pte =
-		((prot << (52 + 4 * direction)) & (IOPTE_PP_W | IOPTE_PP_R))
-		| IOPTE_M | IOPTE_SO_RW | (window->ioid & IOPTE_IOID_Mask);
+		((prot << (52 + 4 * direction)) &
+		 (CBE_IOPTE_PP_W | CBE_IOPTE_PP_R)) |
+		CBE_IOPTE_M | CBE_IOPTE_SO_RW |
+		(window->ioid & CBE_IOPTE_IOID_Mask);
 #else
-	base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW |
-		(window->ioid & IOPTE_IOID_Mask);
+	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
+		CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
 #endif
 	if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)))
-		base_pte &= ~IOPTE_SO_RW;
+		base_pte &= ~CBE_IOPTE_SO_RW;
 
 	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
 
 	for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE)
-		io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask);
+		io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask);
 
 	mb();
 
@@ -231,8 +223,9 @@
 #else
 	/* spider bridge does PCI reads after freeing - insert a mapping
 	 * to a scratch page instead of an invalid entry */
-	pte = IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | __pa(window->iommu->pad_page)
-		| (window->ioid & IOPTE_IOID_Mask);
+	pte = CBE_IOPTE_PP_R | CBE_IOPTE_M | CBE_IOPTE_SO_RW |
+		__pa(window->iommu->pad_page) |
+		(window->ioid & CBE_IOPTE_IOID_Mask);
 #endif
 
 	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
@@ -1001,7 +994,7 @@
 	pr_debug("iommu: addr %lx ptab %p segment %lx offset %lx\n",
 		  addr, ptab, segment, offset);
 
-	ptab[offset] = base_pte | (__pa(addr) & IOPTE_RPN_Mask);
+	ptab[offset] = base_pte | (__pa(addr) & CBE_IOPTE_RPN_Mask);
 }
 
 static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu,
@@ -1016,14 +1009,14 @@
 
 	pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase);
 
-	base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M
-		    | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask);
+	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
+		(cell_iommu_get_ioid(np) & CBE_IOPTE_IOID_Mask);
 
 	if (iommu_fixed_is_weak)
 		pr_info("IOMMU: Using weak ordering for fixed mapping\n");
 	else {
 		pr_info("IOMMU: Using strong ordering for fixed mapping\n");
-		base_pte |= IOPTE_SO_RW;
+		base_pte |= CBE_IOPTE_SO_RW;
 	}
 
 	for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) {
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index 4543c4b..c5a87a7 100644
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -204,7 +204,8 @@
 	dt_prop(dt, name, &data, sizeof(u32));
 }
 
-static void __init dt_prop_u64(struct iseries_flat_dt *dt, const char *name,
+static void __init __maybe_unused dt_prop_u64(struct iseries_flat_dt *dt,
+					      const char *name,
 		u64 data)
 {
 	dt_prop(dt, name, &data, sizeof(u64));
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 3689c24..fef4d51 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -267,7 +267,8 @@
 	return ev;
 }
 
-static int signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd)
+static int __maybe_unused
+signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd)
 {
 	struct pending_event *ev = new_pending_event();
 	int rc;
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 9a2b6d9..846eb8b 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -24,6 +24,7 @@
 #include <linux/lmb.h>
 
 #include <asm/firmware.h>
+#include <asm/iommu.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/lv1call.h>
@@ -605,9 +606,8 @@
 				       r->ioid,
 				       iopte_flag);
 		if (result) {
-			printk(KERN_WARNING "%s:%d: lv1_map_device_dma_region "
-				"failed: %s\n", __func__, __LINE__,
-				ps3_result(result));
+			pr_warning("%s:%d: lv1_put_iopte failed: %s\n",
+				   __func__, __LINE__, ps3_result(result));
 			goto fail_map;
 		}
 		DBG("%s: pg=%d bus=%#lx, lpar=%#lx, ioid=%#x\n", __func__,
@@ -1001,7 +1001,8 @@
 		if (len > r->len)
 			len = r->len;
 		result = dma_sb_map_area(r, virt_addr, len, &tmp,
-			IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW |
+			CBE_IOPTE_M);
 		BUG_ON(result);
 	}
 
@@ -1014,7 +1015,8 @@
 		else
 			len -= map.rm.size - r->offset;
 		result = dma_sb_map_area(r, virt_addr, len, &tmp,
-			IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW |
+			CBE_IOPTE_M);
 		BUG_ON(result);
 	}
 
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c
index cf1cd0f..d6487a9 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -226,6 +226,44 @@
 	.value = &saved_params.av_multi_out,
 };
 
+
+static DEFINE_MUTEX(os_area_flash_mutex);
+
+static const struct ps3_os_area_flash_ops *os_area_flash_ops;
+
+void ps3_os_area_flash_register(const struct ps3_os_area_flash_ops *ops)
+{
+	mutex_lock(&os_area_flash_mutex);
+	os_area_flash_ops = ops;
+	mutex_unlock(&os_area_flash_mutex);
+}
+EXPORT_SYMBOL_GPL(ps3_os_area_flash_register);
+
+static ssize_t os_area_flash_read(void *buf, size_t count, loff_t pos)
+{
+	ssize_t res = -ENODEV;
+
+	mutex_lock(&os_area_flash_mutex);
+	if (os_area_flash_ops)
+		res = os_area_flash_ops->read(buf, count, pos);
+	mutex_unlock(&os_area_flash_mutex);
+
+	return res;
+}
+
+static ssize_t os_area_flash_write(const void *buf, size_t count, loff_t pos)
+{
+	ssize_t res = -ENODEV;
+
+	mutex_lock(&os_area_flash_mutex);
+	if (os_area_flash_ops)
+		res = os_area_flash_ops->write(buf, count, pos);
+	mutex_unlock(&os_area_flash_mutex);
+
+	return res;
+}
+
+
 /**
  * os_area_set_property - Add or overwrite a saved_params value to the device tree.
  *
@@ -352,12 +390,12 @@
 	if (memcmp(db->magic_num, OS_AREA_DB_MAGIC_NUM,
 		sizeof(db->magic_num))) {
 		pr_debug("%s:%d magic_num failed\n", __func__, __LINE__);
-		return -1;
+		return -EINVAL;
 	}
 
 	if (db->version != 1) {
 		pr_debug("%s:%d version failed\n", __func__, __LINE__);
-		return -1;
+		return -EINVAL;
 	}
 
 	return 0;
@@ -578,59 +616,48 @@
  *
  */
 
-static void __maybe_unused update_flash_db(void)
+static int update_flash_db(void)
 {
-	int result;
-	int file;
-	off_t offset;
+	const unsigned int buf_len = 8 * OS_AREA_SEGMENT_SIZE;
+	struct os_area_header *header;
 	ssize_t count;
-	static const unsigned int buf_len = 8 * OS_AREA_SEGMENT_SIZE;
-	const struct os_area_header *header;
+	int error;
+	loff_t pos;
 	struct os_area_db* db;
 
 	/* Read in header and db from flash. */
 
-	file = sys_open("/dev/ps3flash", O_RDWR, 0);
-
-	if (file < 0) {
-		pr_debug("%s:%d sys_open failed\n", __func__, __LINE__);
-		goto fail_open;
-	}
-
 	header = kmalloc(buf_len, GFP_KERNEL);
-
 	if (!header) {
-		pr_debug("%s:%d kmalloc failed\n", __func__, __LINE__);
-		goto fail_malloc;
+		pr_debug("%s: kmalloc failed\n", __func__);
+		return -ENOMEM;
 	}
 
-	offset = sys_lseek(file, 0, SEEK_SET);
-
-	if (offset != 0) {
-		pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__);
-		goto fail_header_seek;
+	count = os_area_flash_read(header, buf_len, 0);
+	if (count < 0) {
+		pr_debug("%s: os_area_flash_read failed %zd\n", __func__,
+			 count);
+		error = count;
+		goto fail;
 	}
 
-	count = sys_read(file, (char __user *)header, buf_len);
-
-	result = count < OS_AREA_SEGMENT_SIZE || verify_header(header)
-		|| count < header->db_area_offset * OS_AREA_SEGMENT_SIZE;
-
-	if (result) {
-		pr_debug("%s:%d verify_header failed\n", __func__, __LINE__);
+	pos = header->db_area_offset * OS_AREA_SEGMENT_SIZE;
+	if (count < OS_AREA_SEGMENT_SIZE || verify_header(header) ||
+	    count < pos) {
+		pr_debug("%s: verify_header failed\n", __func__);
 		dump_header(header);
-		goto fail_header;
+		error = -EINVAL;
+		goto fail;
 	}
 
 	/* Now got a good db offset and some maybe good db data. */
 
-	db = (void*)header + header->db_area_offset * OS_AREA_SEGMENT_SIZE;
+	db = (void *)header + pos;
 
-	result = db_verify(db);
-
-	if (result) {
-		printk(KERN_NOTICE "%s:%d: Verify of flash database failed, "
-			"formatting.\n", __func__, __LINE__);
+	error = db_verify(db);
+	if (error) {
+		pr_notice("%s: Verify of flash database failed, formatting.\n",
+			  __func__);
 		dump_db(db);
 		os_area_db_init(db);
 	}
@@ -639,29 +666,16 @@
 
 	db_set_64(db, &os_area_db_id_rtc_diff, saved_params.rtc_diff);
 
-	offset = sys_lseek(file, header->db_area_offset * OS_AREA_SEGMENT_SIZE,
-		SEEK_SET);
-
-	if (offset != header->db_area_offset * OS_AREA_SEGMENT_SIZE) {
-		pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__);
-		goto fail_db_seek;
-	}
-
-	count = sys_write(file, (const char __user *)db,
-		sizeof(struct os_area_db));
-
+	count = os_area_flash_write(db, sizeof(struct os_area_db), pos);
 	if (count < sizeof(struct os_area_db)) {
-		pr_debug("%s:%d sys_write failed\n", __func__, __LINE__);
+		pr_debug("%s: os_area_flash_write failed %zd\n", __func__,
+			 count);
+		error = count < 0 ? count : -EIO;
 	}
 
-fail_db_seek:
-fail_header:
-fail_header_seek:
+fail:
 	kfree(header);
-fail_malloc:
-	sys_close(file);
-fail_open:
-	return;
+	return error;
 }
 
 /**
@@ -674,11 +688,11 @@
 static void os_area_queue_work_handler(struct work_struct *work)
 {
 	struct device_node *node;
+	int error;
 
 	pr_debug(" -> %s:%d\n", __func__, __LINE__);
 
 	node = of_find_node_by_path("/");
-
 	if (node) {
 		os_area_set_property(node, &property_rtc_diff);
 		of_node_put(node);
@@ -686,12 +700,10 @@
 		pr_debug("%s:%d of_find_node_by_path failed\n",
 			__func__, __LINE__);
 
-#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
-	update_flash_db();
-#else
-	printk(KERN_WARNING "%s:%d: No flash rom driver configured.\n",
-		__func__, __LINE__);
-#endif
+	error = update_flash_db();
+	if (error)
+		pr_warning("%s: Could not update FLASH ROM\n", __func__);
+
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
 }
 
@@ -808,7 +820,7 @@
 {
 	return saved_params.rtc_diff;
 }
-EXPORT_SYMBOL(ps3_os_area_get_rtc_diff);
+EXPORT_SYMBOL_GPL(ps3_os_area_get_rtc_diff);
 
 /**
  * ps3_os_area_set_rtc_diff - Set the rtc diff value.
@@ -824,7 +836,7 @@
 		os_area_queue_work();
 	}
 }
-EXPORT_SYMBOL(ps3_os_area_set_rtc_diff);
+EXPORT_SYMBOL_GPL(ps3_os_area_set_rtc_diff);
 
 /**
  * ps3_os_area_get_av_multi_out - Returns the default video mode.
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 136aa06..9a196a8 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -232,14 +232,4 @@
 int ps3_repository_read_vuart_av_port(unsigned int *port);
 int ps3_repository_read_vuart_sysmgr_port(unsigned int *port);
 
-/* Page table entries */
-#define IOPTE_PP_W		0x8000000000000000ul /* protection: write */
-#define IOPTE_PP_R		0x4000000000000000ul /* protection: read */
-#define IOPTE_M			0x2000000000000000ul /* coherency required */
-#define IOPTE_SO_R		0x1000000000000000ul /* ordering: writes */
-#define IOPTE_SO_RW             0x1800000000000000ul /* ordering: r & w */
-#define IOPTE_RPN_Mask		0x07fffffffffff000ul /* RPN */
-#define IOPTE_H			0x0000000000000800ul /* cache hint */
-#define IOPTE_IOID_Mask		0x00000000000007fful /* ioid */
-
 #endif
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 1a7b5ae..149bea2 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -32,6 +32,7 @@
 #include <asm/udbg.h>
 #include <asm/prom.h>
 #include <asm/lv1call.h>
+#include <asm/ps3gpu.h>
 
 #include "platform.h"
 
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 9a73d02..9fead0f 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -27,6 +27,7 @@
 #include <asm/udbg.h>
 #include <asm/lv1call.h>
 #include <asm/firmware.h>
+#include <asm/iommu.h>
 
 #include "platform.h"
 
@@ -531,7 +532,8 @@
 	}
 
 	result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle,
-			     IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M);
+			     CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
+			     CBE_IOPTE_SO_RW | CBE_IOPTE_M);
 
 	if (result) {
 		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@@ -575,7 +577,8 @@
 
 	result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
 			     &bus_addr,
-			     IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M);
+			     CBE_IOPTE_PP_R | CBE_IOPTE_PP_W |
+			     CBE_IOPTE_SO_RW | CBE_IOPTE_M);
 
 	if (result) {
 		pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
@@ -596,16 +599,16 @@
 	u64 iopte_flag;
 	void *ptr = page_address(page) + offset;
 
-	iopte_flag = IOPTE_M;
+	iopte_flag = CBE_IOPTE_M;
 	switch (direction) {
 	case DMA_BIDIRECTIONAL:
-		iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW;
+		iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW;
 		break;
 	case DMA_TO_DEVICE:
-		iopte_flag |= IOPTE_PP_R | IOPTE_SO_R;
+		iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_SO_R;
 		break;
 	case DMA_FROM_DEVICE:
-		iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW;
+		iopte_flag |= CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW;
 		break;
 	default:
 		/* not happned */
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 99dc3de..a14dba0 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -348,6 +348,9 @@
 config ARCH_ENABLE_MEMORY_HOTREMOVE
 	def_bool y
 
+config ARCH_HIBERNATION_POSSIBLE
+       def_bool y if 64BIT
+
 source "mm/Kconfig"
 
 comment "I/O subsystem configuration"
@@ -592,6 +595,12 @@
 
 endmenu
 
+menu "Power Management"
+
+source "kernel/power/Kconfig"
+
+endmenu
+
 source "net/Kconfig"
 
 config PCMCIA
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 578c61f..0ff387c 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -88,7 +88,9 @@
 head-y		:= arch/s390/kernel/head.o arch/s390/kernel/init_task.o
 
 core-y		+= arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
-		   arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
+		   arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ \
+		   arch/s390/power/
+
 libs-y		+= arch/s390/lib/
 drivers-y	+= drivers/s390/
 drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 1dfc710..264528e 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -5,7 +5,7 @@
  * Exports appldata_register_ops() and appldata_unregister_ops() for the
  * data gathering modules.
  *
- * Copyright IBM Corp. 2003, 2008
+ * Copyright IBM Corp. 2003, 2009
  *
  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
@@ -26,6 +26,8 @@
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/workqueue.h>
+#include <linux/suspend.h>
+#include <linux/platform_device.h>
 #include <asm/appldata.h>
 #include <asm/timer.h>
 #include <asm/uaccess.h>
@@ -41,6 +43,9 @@
 
 #define TOD_MICRO	0x01000			/* nr. of TOD clock units
 						   for 1 microsecond */
+
+static struct platform_device *appldata_pdev;
+
 /*
  * /proc entries (sysctl)
  */
@@ -86,6 +91,7 @@
 static DEFINE_SPINLOCK(appldata_timer_lock);
 static int appldata_interval = APPLDATA_CPU_INTERVAL;
 static int appldata_timer_active;
+static int appldata_timer_suspended = 0;
 
 /*
  * Work queue
@@ -475,6 +481,93 @@
 /********************** module-ops management <END> **************************/
 
 
+/**************************** suspend / resume *******************************/
+static int appldata_freeze(struct device *dev)
+{
+	struct appldata_ops *ops;
+	int rc;
+	struct list_head *lh;
+
+	get_online_cpus();
+	spin_lock(&appldata_timer_lock);
+	if (appldata_timer_active) {
+		__appldata_vtimer_setup(APPLDATA_DEL_TIMER);
+		appldata_timer_suspended = 1;
+	}
+	spin_unlock(&appldata_timer_lock);
+	put_online_cpus();
+
+	mutex_lock(&appldata_ops_mutex);
+	list_for_each(lh, &appldata_ops_list) {
+		ops = list_entry(lh, struct appldata_ops, list);
+		if (ops->active == 1) {
+			rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
+					(unsigned long) ops->data, ops->size,
+					ops->mod_lvl);
+			if (rc != 0)
+				pr_err("Stopping the data collection for %s "
+				       "failed with rc=%d\n", ops->name, rc);
+		}
+	}
+	mutex_unlock(&appldata_ops_mutex);
+	return 0;
+}
+
+static int appldata_restore(struct device *dev)
+{
+	struct appldata_ops *ops;
+	int rc;
+	struct list_head *lh;
+
+	get_online_cpus();
+	spin_lock(&appldata_timer_lock);
+	if (appldata_timer_suspended) {
+		__appldata_vtimer_setup(APPLDATA_ADD_TIMER);
+		appldata_timer_suspended = 0;
+	}
+	spin_unlock(&appldata_timer_lock);
+	put_online_cpus();
+
+	mutex_lock(&appldata_ops_mutex);
+	list_for_each(lh, &appldata_ops_list) {
+		ops = list_entry(lh, struct appldata_ops, list);
+		if (ops->active == 1) {
+			ops->callback(ops->data);	// init record
+			rc = appldata_diag(ops->record_nr,
+					APPLDATA_START_INTERVAL_REC,
+					(unsigned long) ops->data, ops->size,
+					ops->mod_lvl);
+			if (rc != 0) {
+				pr_err("Starting the data collection for %s "
+				       "failed with rc=%d\n", ops->name, rc);
+			}
+		}
+	}
+	mutex_unlock(&appldata_ops_mutex);
+	return 0;
+}
+
+static int appldata_thaw(struct device *dev)
+{
+	return appldata_restore(dev);
+}
+
+static struct dev_pm_ops appldata_pm_ops = {
+	.freeze		= appldata_freeze,
+	.thaw		= appldata_thaw,
+	.restore	= appldata_restore,
+};
+
+static struct platform_driver appldata_pdrv = {
+	.driver = {
+		.name	= "appldata",
+		.owner	= THIS_MODULE,
+		.pm	= &appldata_pm_ops,
+	},
+};
+/************************* suspend / resume <END> ****************************/
+
+
 /******************************* init / exit *********************************/
 
 static void __cpuinit appldata_online_cpu(int cpu)
@@ -531,11 +624,23 @@
  */
 static int __init appldata_init(void)
 {
-	int i;
+	int i, rc;
 
+	rc = platform_driver_register(&appldata_pdrv);
+	if (rc)
+		return rc;
+
+	appldata_pdev = platform_device_register_simple("appldata", -1, NULL,
+							0);
+	if (IS_ERR(appldata_pdev)) {
+		rc = PTR_ERR(appldata_pdev);
+		goto out_driver;
+	}
 	appldata_wq = create_singlethread_workqueue("appldata");
-	if (!appldata_wq)
-		return -ENOMEM;
+	if (!appldata_wq) {
+		rc = -ENOMEM;
+		goto out_device;
+	}
 
 	get_online_cpus();
 	for_each_online_cpu(i)
@@ -547,6 +652,12 @@
 
 	appldata_sysctl_header = register_sysctl_table(appldata_dir_table);
 	return 0;
+
+out_device:
+	platform_device_unregister(appldata_pdev);
+out_driver:
+	platform_driver_unregister(&appldata_pdrv);
+	return rc;
 }
 
 __initcall(appldata_init);
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index ba007d8..2a54195 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -1,11 +1,9 @@
 /*
- *  include/asm-s390/ccwdev.h
- *  include/asm-s390x/ccwdev.h
+ * Copyright  IBM Corp. 2002, 2009
  *
- *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Arnd Bergmann <arndb@de.ibm.com>
+ * Author(s): Arnd Bergmann <arndb@de.ibm.com>
  *
- *  Interface for CCW device drivers
+ * Interface for CCW device drivers
  */
 #ifndef _S390_CCWDEV_H_
 #define _S390_CCWDEV_H_
@@ -104,6 +102,11 @@
  * @set_offline: called when setting device offline
  * @notify: notify driver of device state changes
  * @shutdown: called at device shutdown
+ * @prepare: prepare for pm state transition
+ * @complete: undo work done in @prepare
+ * @freeze: callback for freezing during hibernation snapshotting
+ * @thaw: undo work done in @freeze
+ * @restore: callback for restoring after hibernation
  * @driver: embedded device driver structure
  * @name: device driver name
  */
@@ -116,6 +119,11 @@
 	int (*set_offline) (struct ccw_device *);
 	int (*notify) (struct ccw_device *, int);
 	void (*shutdown) (struct ccw_device *);
+	int (*prepare) (struct ccw_device *);
+	void (*complete) (struct ccw_device *);
+	int (*freeze)(struct ccw_device *);
+	int (*thaw) (struct ccw_device *);
+	int (*restore)(struct ccw_device *);
 	struct device_driver driver;
 	char *name;
 };
@@ -184,6 +192,7 @@
 #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver)
 
 extern struct ccw_device *ccw_device_probe_console(void);
+extern int ccw_device_force_console(void);
 
 // FIXME: these have to go
 extern int _ccw_device_get_subchannel_number(struct ccw_device *);
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index a27f689..c79c1e7 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -38,6 +38,11 @@
  * @set_online: function called when device is set online
  * @set_offline: function called when device is set offline
  * @shutdown: function called when device is shut down
+ * @prepare: prepare for pm state transition
+ * @complete: undo work done in @prepare
+ * @freeze: callback for freezing during hibernation snapshotting
+ * @thaw: undo work done in @freeze
+ * @restore: callback for restoring after hibernation
  * @driver: embedded driver structure
  */
 struct ccwgroup_driver {
@@ -51,6 +56,11 @@
 	int (*set_online) (struct ccwgroup_device *);
 	int (*set_offline) (struct ccwgroup_device *);
 	void (*shutdown)(struct ccwgroup_device *);
+	int (*prepare) (struct ccwgroup_device *);
+	void (*complete) (struct ccwgroup_device *);
+	int (*freeze)(struct ccwgroup_device *);
+	int (*thaw) (struct ccwgroup_device *);
+	int (*restore)(struct ccwgroup_device *);
 
 	struct device_driver driver;
 };
diff --git a/arch/s390/include/asm/suspend.h b/arch/s390/include/asm/suspend.h
new file mode 100644
index 0000000..dc75c61
--- /dev/null
+++ b/arch/s390/include/asm/suspend.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_S390_SUSPEND_H
+#define __ASM_S390_SUSPEND_H
+
+static inline int arch_prepare_suspend(void)
+{
+	return 0;
+}
+
+#endif
+
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 3a8b26e..4fb83c1 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -1,11 +1,7 @@
 /*
- *  include/asm-s390/system.h
+ * Copyright IBM Corp. 1999, 2009
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *
- *  Derived from "include/asm-i386/system.h"
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #ifndef __ASM_SYSTEM_H
@@ -469,6 +465,20 @@
 extern psw_t io_restore_trace_psw;
 #endif
 
+static inline int tprot(unsigned long addr)
+{
+	int rc = -EFAULT;
+
+	asm volatile(
+		"	tprot	0(%1),0\n"
+		"0:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "+d" (rc) : "a" (addr) : "cc");
+	return rc;
+}
+
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index fb26373..f9b1440 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -1,7 +1,7 @@
 /*
  *  arch/s390/kernel/early.c
  *
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Hongjie Yang <hongjie@us.ibm.com>,
  *		 Heiko Carstens <heiko.carstens@de.ibm.com>
  */
@@ -210,7 +210,7 @@
 		machine_flags |= MACHINE_FLAG_VM;
 }
 
-static __init void early_pgm_check_handler(void)
+static void early_pgm_check_handler(void)
 {
 	unsigned long addr;
 	const struct exception_table_entry *fixup;
@@ -222,7 +222,7 @@
 	S390_lowcore.program_old_psw.addr = fixup->fixup | PSW_ADDR_AMODE;
 }
 
-static noinline __init void setup_lowcore_early(void)
+void setup_lowcore_early(void)
 {
 	psw_t psw;
 
diff --git a/arch/s390/kernel/mem_detect.c b/arch/s390/kernel/mem_detect.c
index 9872999c..559af0d 100644
--- a/arch/s390/kernel/mem_detect.c
+++ b/arch/s390/kernel/mem_detect.c
@@ -1,6 +1,7 @@
 /*
- *    Copyright IBM Corp. 2008
- *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ * Copyright IBM Corp. 2008, 2009
+ *
+ * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
 #include <linux/kernel.h>
@@ -9,20 +10,6 @@
 #include <asm/sclp.h>
 #include <asm/setup.h>
 
-static inline int tprot(unsigned long addr)
-{
-	int rc = -EFAULT;
-
-	asm volatile(
-		"	tprot	0(%1),0\n"
-		"0:	ipm	%0\n"
-		"	srl	%0,28\n"
-		"1:\n"
-		EX_TABLE(0b,1b)
-		: "+d" (rc) : "a" (addr) : "cc");
-	return rc;
-}
-
 #define ADDR2G (1ULL << 31)
 
 static void find_memory_chunks(struct mem_chunk chunk[])
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index cc8c484..fd8e311 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1,7 +1,7 @@
 /*
  *  arch/s390/kernel/smp.c
  *
- *    Copyright IBM Corp. 1999,2007
+ *    Copyright IBM Corp. 1999, 2009
  *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
  *		 Martin Schwidefsky (schwidefsky@de.ibm.com)
  *		 Heiko Carstens (heiko.carstens@de.ibm.com)
@@ -1031,6 +1031,42 @@
 static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show,
 			 dispatching_store);
 
+/*
+ * If the resume kernel runs on another cpu than the suspended kernel,
+ * we have to switch the cpu IDs in the logical map.
+ */
+void smp_switch_boot_cpu_in_resume(u32 resume_phys_cpu_id,
+				   struct _lowcore *suspend_lowcore)
+{
+	int cpu, suspend_cpu_id, resume_cpu_id;
+	u32 suspend_phys_cpu_id;
+
+	suspend_phys_cpu_id = __cpu_logical_map[suspend_lowcore->cpu_nr];
+	suspend_cpu_id = suspend_lowcore->cpu_nr;
+
+	for_each_present_cpu(cpu) {
+		if (__cpu_logical_map[cpu] == resume_phys_cpu_id) {
+			resume_cpu_id = cpu;
+			goto found;
+		}
+	}
+	panic("Could not find resume cpu in logical map.\n");
+
+found:
+	printk("Resume  cpu ID: %i/%i\n", resume_phys_cpu_id, resume_cpu_id);
+	printk("Suspend cpu ID: %i/%i\n", suspend_phys_cpu_id, suspend_cpu_id);
+
+	__cpu_logical_map[resume_cpu_id] = suspend_phys_cpu_id;
+	__cpu_logical_map[suspend_cpu_id] = resume_phys_cpu_id;
+
+	lowcore_ptr[suspend_cpu_id]->cpu_addr = resume_phys_cpu_id;
+}
+
+u32 smp_get_phys_cpu_id(void)
+{
+	return __cpu_logical_map[smp_processor_id()];
+}
+
 static int __init topology_init(void)
 {
 	int cpu;
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 4ca8e82..5656672 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -313,3 +313,22 @@
 	return 0;
 }
 EXPORT_SYMBOL_GPL(s390_enable_sie);
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+#ifdef CONFIG_HIBERNATION
+bool kernel_page_present(struct page *page)
+{
+	unsigned long addr;
+	int cc;
+
+	addr = page_to_phys(page);
+	asm("lra %1,0(%1)\n"
+	    "ipm %0\n"
+	    "srl %0,28"
+	    :"=d"(cc),"+a"(addr)::"cc");
+	return cc == 0;
+}
+
+#endif /* CONFIG_HIBERNATION */
+#endif /* CONFIG_DEBUG_PAGEALLOC */
+
diff --git a/arch/s390/power/Makefile b/arch/s390/power/Makefile
new file mode 100644
index 0000000..973bb45
--- /dev/null
+++ b/arch/s390/power/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for s390 PM support
+#
+
+obj-$(CONFIG_HIBERNATION) += suspend.o
+obj-$(CONFIG_HIBERNATION) += swsusp.o
+obj-$(CONFIG_HIBERNATION) += swsusp_64.o
+obj-$(CONFIG_HIBERNATION) += swsusp_asm64.o
diff --git a/arch/s390/power/suspend.c b/arch/s390/power/suspend.c
new file mode 100644
index 0000000..b3351ec
--- /dev/null
+++ b/arch/s390/power/suspend.c
@@ -0,0 +1,40 @@
+/*
+ * Suspend support specific for s390.
+ *
+ * Copyright IBM Corp. 2009
+ *
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ */
+
+#include <linux/mm.h>
+#include <linux/suspend.h>
+#include <linux/reboot.h>
+#include <linux/pfn.h>
+#include <asm/sections.h>
+#include <asm/ipl.h>
+
+/*
+ * References to section boundaries
+ */
+extern const void __nosave_begin, __nosave_end;
+
+/*
+ *  check if given pfn is in the 'nosave' or in the read only NSS section
+ */
+int pfn_is_nosave(unsigned long pfn)
+{
+	unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
+	unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
+					>> PAGE_SHIFT;
+	unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
+	unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
+
+	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
+		return 1;
+	if (pfn >= stext_pfn && pfn <= eshared_pfn) {
+		if (ipl_info.type == IPL_TYPE_NSS)
+			return 1;
+	} else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
+		return 1;
+	return 0;
+}
diff --git a/arch/s390/power/swsusp.c b/arch/s390/power/swsusp.c
new file mode 100644
index 0000000..e6a4fe9
--- /dev/null
+++ b/arch/s390/power/swsusp.c
@@ -0,0 +1,30 @@
+/*
+ * Support for suspend and resume on s390
+ *
+ * Copyright IBM Corp. 2009
+ *
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ *
+ */
+
+
+/*
+ * save CPU registers before creating a hibernation image and before
+ * restoring the memory state from it
+ */
+void save_processor_state(void)
+{
+	/* implentation contained in the
+	 * swsusp_arch_suspend function
+	 */
+}
+
+/*
+ * restore the contents of CPU registers
+ */
+void restore_processor_state(void)
+{
+	/* implentation contained in the
+	 * swsusp_arch_resume function
+	 */
+}
diff --git a/arch/s390/power/swsusp_64.c b/arch/s390/power/swsusp_64.c
new file mode 100644
index 0000000..9516a51
--- /dev/null
+++ b/arch/s390/power/swsusp_64.c
@@ -0,0 +1,17 @@
+/*
+ * Support for suspend and resume on s390
+ *
+ * Copyright IBM Corp. 2009
+ *
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ *
+ */
+
+#include <asm/system.h>
+#include <linux/interrupt.h>
+
+void do_after_copyback(void)
+{
+	mb();
+}
+
diff --git a/arch/s390/power/swsusp_asm64.S b/arch/s390/power/swsusp_asm64.S
new file mode 100644
index 0000000..3c74e7d
--- /dev/null
+++ b/arch/s390/power/swsusp_asm64.S
@@ -0,0 +1,199 @@
+/*
+ * S390 64-bit swsusp implementation
+ *
+ * Copyright IBM Corp. 2009
+ *
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ *	      Michael Holzheu <holzheu@linux.vnet.ibm.com>
+ */
+
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/asm-offsets.h>
+
+/*
+ * Save register context in absolute 0 lowcore and call swsusp_save() to
+ * create in-memory kernel image. The context is saved in the designated
+ * "store status" memory locations (see POP).
+ * We return from this function twice. The first time during the suspend to
+ * disk process. The second time via the swsusp_arch_resume() function
+ * (see below) in the resume process.
+ * This function runs with disabled interrupts.
+ */
+	.section .text
+	.align	2
+	.globl swsusp_arch_suspend
+swsusp_arch_suspend:
+	stmg	%r6,%r15,__SF_GPRS(%r15)
+	lgr	%r1,%r15
+	aghi	%r15,-STACK_FRAME_OVERHEAD
+	stg	%r1,__SF_BACKCHAIN(%r15)
+
+	/* Deactivate DAT */
+	stnsm	__SF_EMPTY(%r15),0xfb
+
+	/* Switch off lowcore protection */
+	stctg	%c0,%c0,__SF_EMPTY(%r15)
+	ni	__SF_EMPTY+4(%r15),0xef
+	lctlg	%c0,%c0,__SF_EMPTY(%r15)
+
+	/* Store prefix register on stack */
+	stpx	__SF_EMPTY(%r15)
+
+	/* Setup base register for lowcore (absolute 0) */
+	llgf	%r1,__SF_EMPTY(%r15)
+
+	/* Get pointer to save area */
+	aghi	%r1,0x1000
+
+	/* Store registers */
+	mvc	0x318(4,%r1),__SF_EMPTY(%r15)	/* move prefix to lowcore */
+	stfpc	0x31c(%r1)			/* store fpu control */
+	std	0,0x200(%r1)			/* store f0 */
+	std	1,0x208(%r1)			/* store f1 */
+	std	2,0x210(%r1)			/* store f2 */
+	std	3,0x218(%r1)			/* store f3 */
+	std	4,0x220(%r1)			/* store f4 */
+	std	5,0x228(%r1)			/* store f5 */
+	std	6,0x230(%r1)			/* store f6 */
+	std	7,0x238(%r1)			/* store f7 */
+	std	8,0x240(%r1)			/* store f8 */
+	std	9,0x248(%r1)			/* store f9 */
+	std	10,0x250(%r1)			/* store f10 */
+	std	11,0x258(%r1)			/* store f11 */
+	std	12,0x260(%r1)			/* store f12 */
+	std	13,0x268(%r1)			/* store f13 */
+	std	14,0x270(%r1)			/* store f14 */
+	std	15,0x278(%r1)			/* store f15 */
+	stam	%a0,%a15,0x340(%r1)		/* store access registers */
+	stctg	%c0,%c15,0x380(%r1)		/* store control registers */
+	stmg	%r0,%r15,0x280(%r1)		/* store general registers */
+
+	stpt	0x328(%r1)			/* store timer */
+	stckc	0x330(%r1)			/* store clock comparator */
+
+	/* Activate DAT */
+	stosm	__SF_EMPTY(%r15),0x04
+
+	/* Set prefix page to zero */
+	xc	__SF_EMPTY(4,%r15),__SF_EMPTY(%r15)
+	spx	__SF_EMPTY(%r15)
+
+	/* Setup lowcore */
+	brasl	%r14,setup_lowcore_early
+
+	/* Save image */
+	brasl	%r14,swsusp_save
+
+	/* Switch on lowcore protection */
+	stctg	%c0,%c0,__SF_EMPTY(%r15)
+	oi	__SF_EMPTY+4(%r15),0x10
+	lctlg	%c0,%c0,__SF_EMPTY(%r15)
+
+	/* Restore prefix register and return */
+	lghi	%r1,0x1000
+	spx	0x318(%r1)
+	lmg	%r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
+	lghi	%r2,0
+	br	%r14
+
+/*
+ * Restore saved memory image to correct place and restore register context.
+ * Then we return to the function that called swsusp_arch_suspend().
+ * swsusp_arch_resume() runs with disabled interrupts.
+ */
+	.globl swsusp_arch_resume
+swsusp_arch_resume:
+	stmg	%r6,%r15,__SF_GPRS(%r15)
+	lgr	%r1,%r15
+	aghi	%r15,-STACK_FRAME_OVERHEAD
+	stg	%r1,__SF_BACKCHAIN(%r15)
+
+	/* Save boot cpu number */
+	brasl	%r14,smp_get_phys_cpu_id
+	lgr	%r10,%r2
+
+	/* Deactivate DAT */
+	stnsm	__SF_EMPTY(%r15),0xfb
+
+	/* Switch off lowcore protection */
+	stctg	%c0,%c0,__SF_EMPTY(%r15)
+	ni	__SF_EMPTY+4(%r15),0xef
+	lctlg	%c0,%c0,__SF_EMPTY(%r15)
+
+	/* Set prefix page to zero */
+	xc	__SF_EMPTY(4,%r15),__SF_EMPTY(%r15)
+	spx	__SF_EMPTY(%r15)
+
+	/* Restore saved image */
+	larl	%r1,restore_pblist
+	lg	%r1,0(%r1)
+	ltgr	%r1,%r1
+	jz	2f
+0:
+	lg	%r2,8(%r1)
+	lg	%r4,0(%r1)
+	lghi	%r3,PAGE_SIZE
+	lghi	%r5,PAGE_SIZE
+1:
+	mvcle	%r2,%r4,0
+	jo	1b
+	lg	%r1,16(%r1)
+	ltgr	%r1,%r1
+	jnz	0b
+2:
+	ptlb				/* flush tlb */
+
+	/* Restore registers */
+	lghi	%r13,0x1000		/* %r1 = pointer to save arae */
+
+	spt	0x328(%r13)		/* reprogram timer */
+	//sckc	0x330(%r13)		/* set clock comparator */
+
+	lctlg	%c0,%c15,0x380(%r13)	/* load control registers */
+	lam	%a0,%a15,0x340(%r13)	/* load access registers */
+
+	lfpc	0x31c(%r13)		/* load fpu control */
+	ld	0,0x200(%r13)		/* load f0 */
+	ld	1,0x208(%r13)		/* load f1 */
+	ld	2,0x210(%r13)		/* load f2 */
+	ld	3,0x218(%r13)		/* load f3 */
+	ld	4,0x220(%r13)		/* load f4 */
+	ld	5,0x228(%r13)		/* load f5 */
+	ld	6,0x230(%r13)		/* load f6 */
+	ld	7,0x238(%r13)		/* load f7 */
+	ld	8,0x240(%r13)		/* load f8 */
+	ld	9,0x248(%r13)		/* load f9 */
+	ld	10,0x250(%r13)		/* load f10 */
+	ld	11,0x258(%r13)		/* load f11 */
+	ld	12,0x260(%r13)		/* load f12 */
+	ld	13,0x268(%r13)		/* load f13 */
+	ld	14,0x270(%r13)		/* load f14 */
+	ld	15,0x278(%r13)		/* load f15 */
+
+	/* Load old stack */
+	lg	%r15,0x2f8(%r13)
+
+	/* Pointer to save arae */
+	lghi	%r13,0x1000
+
+	/* Switch CPUs */
+	lgr	%r2,%r10		/* get cpu id */
+	llgf	%r3,0x318(%r13)
+	brasl	%r14,smp_switch_boot_cpu_in_resume
+
+	/* Restore prefix register */
+	spx	0x318(%r13)
+
+	/* Switch on lowcore protection */
+	stctg	%c0,%c0,__SF_EMPTY(%r15)
+	oi	__SF_EMPTY+4(%r15),0x10
+	lctlg	%c0,%c0,__SF_EMPTY(%r15)
+
+	/* Activate DAT */
+	stosm	__SF_EMPTY(%r15),0x04
+
+	/* Return 0 */
+	lmg	%r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
+	lghi	%r2,0
+	br	%r14
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index cc12cd4..3f8b6a9 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -37,6 +37,8 @@
 	select HAVE_KPROBES
 	select HAVE_LMB
 	select HAVE_SYSCALL_WRAPPERS
+	select HAVE_DYNAMIC_FTRACE
+	select HAVE_FTRACE_MCOUNT_RECORD
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select RTC_DRV_CMOS
 	select RTC_DRV_BQ4802
@@ -93,6 +95,9 @@
 config HAVE_SETUP_PER_CPU_AREA
 	def_bool y if SPARC64
 
+config HAVE_DYNAMIC_PER_CPU_AREA
+	def_bool y if SPARC64
+
 config GENERIC_HARDIRQS_NO__DO_IRQ
 	bool
 	def_bool y if SPARC64
diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig
index b5d63bd..0123a4c 100644
--- a/arch/sparc/configs/sparc64_defconfig
+++ b/arch/sparc/configs/sparc64_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.30-rc2
-# Fri Apr 17 02:03:07 2009
+# Linux kernel version: 2.6.30
+# Tue Jun 16 04:59:36 2009
 #
 CONFIG_64BIT=y
 CONFIG_SPARC=y
@@ -19,6 +19,7 @@
 CONFIG_HAVE_LATENCYTOP_SUPPORT=y
 CONFIG_AUDIT_ARCH=y
 CONFIG_HAVE_SETUP_PER_CPU_AREA=y
+CONFIG_HAVE_DYNAMIC_PER_CPU_AREA=y
 CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
 CONFIG_MMU=y
 CONFIG_ARCH_NO_VIRT_TO_BUS=y
@@ -82,7 +83,6 @@
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
-# CONFIG_STRIP_ASM_SYMS is not set
 CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
@@ -95,16 +95,21 @@
 CONFIG_EVENTFD=y
 CONFIG_SHMEM=y
 CONFIG_AIO=y
+
+#
+# Performance Counters
+#
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_PCI_QUIRKS=y
 CONFIG_SLUB_DEBUG=y
+# CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_COMPAT_BRK is not set
 # CONFIG_SLAB is not set
 CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_PROFILING=y
 CONFIG_TRACEPOINTS=y
-# CONFIG_MARKERS is not set
+CONFIG_MARKERS=y
 CONFIG_OPROFILE=m
 CONFIG_HAVE_OPROFILE=y
 CONFIG_KPROBES=y
@@ -202,6 +207,7 @@
 CONFIG_UNEVICTABLE_LRU=y
 CONFIG_HAVE_MLOCK=y
 CONFIG_HAVE_MLOCKED_PAGE_BIT=y
+CONFIG_DEFAULT_MMAP_MIN_ADDR=8192
 CONFIG_SCHED_SMT=y
 CONFIG_SCHED_MC=y
 # CONFIG_PREEMPT_NONE is not set
@@ -321,6 +327,7 @@
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
 # CONFIG_PHONET is not set
+# CONFIG_IEEE802154 is not set
 # CONFIG_NET_SCHED is not set
 # CONFIG_DCB is not set
 
@@ -340,7 +347,11 @@
 CONFIG_WIRELESS_OLD_REGULATORY=y
 # CONFIG_WIRELESS_EXT is not set
 # CONFIG_LIB80211 is not set
-# CONFIG_MAC80211 is not set
+
+#
+# CFG80211 needs to be enabled for MAC80211
+#
+CONFIG_MAC80211_DEFAULT_PS_VALUE=0
 # CONFIG_WIMAX is not set
 # CONFIG_RFKILL is not set
 # CONFIG_NET_9P is not set
@@ -364,6 +375,7 @@
 CONFIG_CONNECTOR=m
 # CONFIG_MTD is not set
 CONFIG_OF_DEVICE=y
+CONFIG_OF_MDIO=m
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_FD is not set
@@ -399,6 +411,7 @@
 # CONFIG_EEPROM_AT24 is not set
 # CONFIG_EEPROM_LEGACY is not set
 # CONFIG_EEPROM_93CX6 is not set
+# CONFIG_CB710_CORE is not set
 CONFIG_HAVE_IDE=y
 CONFIG_IDE=y
 
@@ -477,10 +490,6 @@
 CONFIG_BLK_DEV_SR_VENDOR=y
 CONFIG_CHR_DEV_SG=m
 # CONFIG_CHR_DEV_SCH is not set
-
-#
-# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
-#
 CONFIG_SCSI_MULTI_LUN=y
 CONFIG_SCSI_CONSTANTS=y
 # CONFIG_SCSI_LOGGING is not set
@@ -499,6 +508,7 @@
 CONFIG_SCSI_LOWLEVEL=y
 # CONFIG_ISCSI_TCP is not set
 # CONFIG_SCSI_CXGB3_ISCSI is not set
+# CONFIG_SCSI_BNX2_ISCSI is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
 # CONFIG_SCSI_ACARD is not set
@@ -507,6 +517,7 @@
 # CONFIG_SCSI_AIC7XXX_OLD is not set
 # CONFIG_SCSI_AIC79XX is not set
 # CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_MVSAS is not set
 # CONFIG_SCSI_ARCMSR is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
@@ -521,7 +532,6 @@
 # CONFIG_SCSI_IPS is not set
 # CONFIG_SCSI_INITIO is not set
 # CONFIG_SCSI_INIA100 is not set
-# CONFIG_SCSI_MVSAS is not set
 # CONFIG_SCSI_STEX is not set
 # CONFIG_SCSI_SYM53C8XX_2 is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
@@ -569,7 +579,6 @@
 # CONFIG_IEEE1394 is not set
 # CONFIG_I2O is not set
 CONFIG_NETDEVICES=y
-CONFIG_COMPAT_NET_DEV_OPS=y
 # CONFIG_DUMMY is not set
 # CONFIG_BONDING is not set
 # CONFIG_MACVLAN is not set
@@ -635,6 +644,7 @@
 # CONFIG_SMSC9420 is not set
 # CONFIG_SUNDANCE is not set
 # CONFIG_TLAN is not set
+# CONFIG_KS8842 is not set
 # CONFIG_VIA_RHINE is not set
 # CONFIG_SC92031 is not set
 # CONFIG_ATL2 is not set
@@ -1127,6 +1137,11 @@
 # CONFIG_SND_VERBOSE_PRINTK is not set
 # CONFIG_SND_DEBUG is not set
 CONFIG_SND_VMASTER=y
+CONFIG_SND_RAWMIDI_SEQ=m
+# CONFIG_SND_OPL3_LIB_SEQ is not set
+# CONFIG_SND_OPL4_LIB_SEQ is not set
+# CONFIG_SND_SBAWE_SEQ is not set
+# CONFIG_SND_EMU10K1_SEQ is not set
 CONFIG_SND_MPU401_UART=m
 CONFIG_SND_AC97_CODEC=m
 CONFIG_SND_DRIVERS=y
@@ -1153,6 +1168,7 @@
 # CONFIG_SND_OXYGEN is not set
 # CONFIG_SND_CS4281 is not set
 # CONFIG_SND_CS46XX is not set
+# CONFIG_SND_CTXFI is not set
 # CONFIG_SND_DARLA20 is not set
 # CONFIG_SND_GINA20 is not set
 # CONFIG_SND_LAYLA20 is not set
@@ -1183,6 +1199,7 @@
 # CONFIG_SND_INTEL8X0 is not set
 # CONFIG_SND_INTEL8X0M is not set
 # CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_LX6464ES is not set
 # CONFIG_SND_MAESTRO3 is not set
 # CONFIG_SND_MIXART is not set
 # CONFIG_SND_NM256 is not set
@@ -1229,6 +1246,7 @@
 CONFIG_HID_CHERRY=y
 CONFIG_HID_CHICONY=y
 CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
 # CONFIG_DRAGONRISE_FF is not set
 CONFIG_HID_EZKEY=y
 CONFIG_HID_KYE=y
@@ -1246,9 +1264,14 @@
 CONFIG_HID_SAMSUNG=y
 CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
+CONFIG_HID_GREENASIA=y
 # CONFIG_GREENASIA_FF is not set
+CONFIG_HID_SMARTJOYPLUS=y
+# CONFIG_SMARTJOYPLUS_FF is not set
 CONFIG_HID_TOPSEED=y
+CONFIG_HID_THRUSTMASTER=y
 # CONFIG_THRUSTMASTER_FF is not set
+CONFIG_HID_ZEROPLUS=y
 # CONFIG_ZEROPLUS_FF is not set
 CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
@@ -1462,6 +1485,7 @@
 # CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
 # CONFIG_BTRFS_FS is not set
+CONFIG_FSNOTIFY=y
 CONFIG_DNOTIFY=y
 CONFIG_INOTIFY=y
 CONFIG_INOTIFY_USER=y
@@ -1636,25 +1660,28 @@
 # CONFIG_DEBUG_PAGEALLOC is not set
 CONFIG_NOP_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
 CONFIG_RING_BUFFER=y
+CONFIG_EVENT_TRACING=y
+CONFIG_CONTEXT_SWITCH_TRACER=y
 CONFIG_TRACING=y
+CONFIG_GENERIC_TRACER=y
 CONFIG_TRACING_SUPPORT=y
-
-#
-# Tracers
-#
+CONFIG_FTRACE=y
 # CONFIG_FUNCTION_TRACER is not set
 # CONFIG_IRQSOFF_TRACER is not set
 # CONFIG_SCHED_TRACER is not set
-# CONFIG_CONTEXT_SWITCH_TRACER is not set
-# CONFIG_EVENT_TRACER is not set
 # CONFIG_BOOT_TRACER is not set
-# CONFIG_TRACE_BRANCH_PROFILING is not set
+CONFIG_BRANCH_PROFILE_NONE=y
+# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
+# CONFIG_PROFILE_ALL_BRANCHES is not set
 # CONFIG_STACK_TRACER is not set
 # CONFIG_KMEMTRACE is not set
 # CONFIG_WORKQUEUE_TRACER is not set
 CONFIG_BLK_DEV_IO_TRACE=y
 # CONFIG_FTRACE_STARTUP_TEST is not set
+# CONFIG_RING_BUFFER_BENCHMARK is not set
 # CONFIG_DYNAMIC_DEBUG is not set
 # CONFIG_SAMPLES is not set
 CONFIG_HAVE_ARCH_KGDB=y
diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index a11b89e..926397d 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -6,9 +6,6 @@
 #ifndef _SPARC64_CPUDATA_H
 #define _SPARC64_CPUDATA_H
 
-#include <asm/hypervisor.h>
-#include <asm/asi.h>
-
 #ifndef __ASSEMBLY__
 
 #include <linux/percpu.h>
@@ -38,202 +35,10 @@
 #define cpu_data(__cpu)		per_cpu(__cpu_data, (__cpu))
 #define local_cpu_data()	__get_cpu_var(__cpu_data)
 
-/* Trap handling code needs to get at a few critical values upon
- * trap entry and to process TSB misses.  These cannot be in the
- * per_cpu() area as we really need to lock them into the TLB and
- * thus make them part of the main kernel image.  As a result we
- * try to make this as small as possible.
- *
- * This is padded out and aligned to 64-bytes to avoid false sharing
- * on SMP.
- */
-
-/* If you modify the size of this structure, please update
- * TRAP_BLOCK_SZ_SHIFT below.
- */
-struct thread_info;
-struct trap_per_cpu {
-/* D-cache line 1: Basic thread information, cpu and device mondo queues */
-	struct thread_info	*thread;
-	unsigned long		pgd_paddr;
-	unsigned long		cpu_mondo_pa;
-	unsigned long		dev_mondo_pa;
-
-/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */
-	unsigned long		resum_mondo_pa;
-	unsigned long		resum_kernel_buf_pa;
-	unsigned long		nonresum_mondo_pa;
-	unsigned long		nonresum_kernel_buf_pa;
-
-/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */
-	struct hv_fault_status	fault_info;
-
-/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list.  */
-	unsigned long		cpu_mondo_block_pa;
-	unsigned long		cpu_list_pa;
-	unsigned long		tsb_huge;
-	unsigned long		tsb_huge_temp;
-
-/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size.  */
-	unsigned long		irq_worklist_pa;
-	unsigned int		cpu_mondo_qmask;
-	unsigned int		dev_mondo_qmask;
-	unsigned int		resum_qmask;
-	unsigned int		nonresum_qmask;
-	void			*hdesc;
-} __attribute__((aligned(64)));
-extern struct trap_per_cpu trap_block[NR_CPUS];
-extern void init_cur_cpu_trap(struct thread_info *);
-extern void setup_tba(void);
-extern int ncpus_probed;
 extern const struct seq_operations cpuinfo_op;
 
-extern unsigned long real_hard_smp_processor_id(void);
-
-struct cpuid_patch_entry {
-	unsigned int	addr;
-	unsigned int	cheetah_safari[4];
-	unsigned int	cheetah_jbus[4];
-	unsigned int	starfire[4];
-	unsigned int	sun4v[4];
-};
-extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end;
-
-struct sun4v_1insn_patch_entry {
-	unsigned int	addr;
-	unsigned int	insn;
-};
-extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch,
-	__sun4v_1insn_patch_end;
-
-struct sun4v_2insn_patch_entry {
-	unsigned int	addr;
-	unsigned int	insns[2];
-};
-extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
-	__sun4v_2insn_patch_end;
-
 #endif /* !(__ASSEMBLY__) */
 
-#define TRAP_PER_CPU_THREAD		0x00
-#define TRAP_PER_CPU_PGD_PADDR		0x08
-#define TRAP_PER_CPU_CPU_MONDO_PA	0x10
-#define TRAP_PER_CPU_DEV_MONDO_PA	0x18
-#define TRAP_PER_CPU_RESUM_MONDO_PA	0x20
-#define TRAP_PER_CPU_RESUM_KBUF_PA	0x28
-#define TRAP_PER_CPU_NONRESUM_MONDO_PA	0x30
-#define TRAP_PER_CPU_NONRESUM_KBUF_PA	0x38
-#define TRAP_PER_CPU_FAULT_INFO		0x40
-#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA	0xc0
-#define TRAP_PER_CPU_CPU_LIST_PA	0xc8
-#define TRAP_PER_CPU_TSB_HUGE		0xd0
-#define TRAP_PER_CPU_TSB_HUGE_TEMP	0xd8
-#define TRAP_PER_CPU_IRQ_WORKLIST_PA	0xe0
-#define TRAP_PER_CPU_CPU_MONDO_QMASK	0xe8
-#define TRAP_PER_CPU_DEV_MONDO_QMASK	0xec
-#define TRAP_PER_CPU_RESUM_QMASK	0xf0
-#define TRAP_PER_CPU_NONRESUM_QMASK	0xf4
-
-#define TRAP_BLOCK_SZ_SHIFT		8
-
-#include <asm/scratchpad.h>
-
-#define __GET_CPUID(REG)				\
-	/* Spitfire implementation (default). */	\
-661:	ldxa		[%g0] ASI_UPA_CONFIG, REG;	\
-	srlx		REG, 17, REG;			\
-	 and		REG, 0x1f, REG;			\
-	nop;						\
-	.section	.cpuid_patch, "ax";		\
-	/* Instruction location. */			\
-	.word		661b;				\
-	/* Cheetah Safari implementation. */		\
-	ldxa		[%g0] ASI_SAFARI_CONFIG, REG;	\
-	srlx		REG, 17, REG;			\
-	and		REG, 0x3ff, REG;		\
-	nop;						\
-	/* Cheetah JBUS implementation. */		\
-	ldxa		[%g0] ASI_JBUS_CONFIG, REG;	\
-	srlx		REG, 17, REG;			\
-	and		REG, 0x1f, REG;			\
-	nop;						\
-	/* Starfire implementation. */			\
-	sethi		%hi(0x1fff40000d0 >> 9), REG;	\
-	sllx		REG, 9, REG;			\
-	or		REG, 0xd0, REG;			\
-	lduwa		[REG] ASI_PHYS_BYPASS_EC_E, REG;\
-	/* sun4v implementation. */			\
-	mov		SCRATCHPAD_CPUID, REG;		\
-	ldxa		[REG] ASI_SCRATCHPAD, REG;	\
-	nop;						\
-	nop;						\
-	.previous;
-
-#ifdef CONFIG_SMP
-
-#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	__GET_CPUID(TMP)			\
-	sethi	%hi(trap_block), DEST;		\
-	sllx	TMP, TRAP_BLOCK_SZ_SHIFT, TMP;	\
-	or	DEST, %lo(trap_block), DEST;	\
-	add	DEST, TMP, DEST;		\
-
-/* Clobbers TMP, current address space PGD phys address into DEST.  */
-#define TRAP_LOAD_PGD_PHYS(DEST, TMP)		\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	ldx	[DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
-
-/* Clobbers TMP, loads local processor's IRQ work area into DEST.  */
-#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP)	\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	add	DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST;
-
-/* Clobbers TMP, loads DEST with current thread info pointer.  */
-#define TRAP_LOAD_THREAD_REG(DEST, TMP)		\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	ldx	[DEST + TRAP_PER_CPU_THREAD], DEST;
-
-/* Given the current thread info pointer in THR, load the per-cpu
- * area base of the current processor into DEST.  REG1, REG2, and REG3 are
- * clobbered.
- *
- * You absolutely cannot use DEST as a temporary in this code.  The
- * reason is that traps can happen during execution, and return from
- * trap will load the fully resolved DEST per-cpu base.  This can corrupt
- * the calculations done by the macro mid-stream.
- */
-#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3)	\
-	lduh	[THR + TI_CPU], REG1;			\
-	sethi	%hi(__per_cpu_shift), REG3;		\
-	sethi	%hi(__per_cpu_base), REG2;		\
-	ldx	[REG3 + %lo(__per_cpu_shift)], REG3;	\
-	ldx	[REG2 + %lo(__per_cpu_base)], REG2;	\
-	sllx	REG1, REG3, REG3;			\
-	add	REG3, REG2, DEST;
-
-#else
-
-#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	sethi	%hi(trap_block), DEST;		\
-	or	DEST, %lo(trap_block), DEST;	\
-
-/* Uniprocessor versions, we know the cpuid is zero.  */
-#define TRAP_LOAD_PGD_PHYS(DEST, TMP)		\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	ldx	[DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
-
-/* Clobbers TMP, loads local processor's IRQ work area into DEST.  */
-#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP)	\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	add	DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST;
-
-#define TRAP_LOAD_THREAD_REG(DEST, TMP)		\
-	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
-	ldx	[DEST + TRAP_PER_CPU_THREAD], DEST;
-
-/* No per-cpu areas on uniprocessor, so no need to load DEST.  */
-#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3)
-
-#endif /* !(CONFIG_SMP) */
+#include <asm/trap_block.h>
 
 #endif /* _SPARC64_CPUDATA_H */
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 0f4150e..204e4bf 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -1,8 +1,166 @@
 #ifndef ___ASM_SPARC_DMA_MAPPING_H
 #define ___ASM_SPARC_DMA_MAPPING_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/dma-mapping_64.h>
-#else
-#include <asm/dma-mapping_32.h>
-#endif
+
+#include <linux/scatterlist.h>
+#include <linux/mm.h>
+
+#define DMA_ERROR_CODE	(~(dma_addr_t)0x0)
+
+extern int dma_supported(struct device *dev, u64 mask);
+extern int dma_set_mask(struct device *dev, u64 dma_mask);
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+#define dma_is_consistent(d, h)	(1)
+
+struct dma_ops {
+	void *(*alloc_coherent)(struct device *dev, size_t size,
+				dma_addr_t *dma_handle, gfp_t flag);
+	void (*free_coherent)(struct device *dev, size_t size,
+			      void *cpu_addr, dma_addr_t dma_handle);
+	dma_addr_t (*map_page)(struct device *dev, struct page *page,
+			       unsigned long offset, size_t size,
+			       enum dma_data_direction direction);
+	void (*unmap_page)(struct device *dev, dma_addr_t dma_addr,
+			   size_t size,
+			   enum dma_data_direction direction);
+	int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents,
+		      enum dma_data_direction direction);
+	void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
+			 int nhwentries,
+			 enum dma_data_direction direction);
+	void (*sync_single_for_cpu)(struct device *dev,
+				    dma_addr_t dma_handle, size_t size,
+				    enum dma_data_direction direction);
+	void (*sync_single_for_device)(struct device *dev,
+				       dma_addr_t dma_handle, size_t size,
+				       enum dma_data_direction direction);
+	void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
+				int nelems,
+				enum dma_data_direction direction);
+	void (*sync_sg_for_device)(struct device *dev,
+				   struct scatterlist *sg, int nents,
+				   enum dma_data_direction dir);
+};
+extern const struct dma_ops *dma_ops;
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+				       dma_addr_t *dma_handle, gfp_t flag)
+{
+	return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
+}
+
+static inline void dma_free_coherent(struct device *dev, size_t size,
+				     void *cpu_addr, dma_addr_t dma_handle)
+{
+	dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
+}
+
+static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+					size_t size,
+					enum dma_data_direction direction)
+{
+	return dma_ops->map_page(dev, virt_to_page(cpu_addr),
+				 (unsigned long)cpu_addr & ~PAGE_MASK, size,
+				 direction);
+}
+
+static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+				    size_t size,
+				    enum dma_data_direction direction)
+{
+	dma_ops->unmap_page(dev, dma_addr, size, direction);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      unsigned long offset, size_t size,
+				      enum dma_data_direction direction)
+{
+	return dma_ops->map_page(dev, page, offset, size, direction);
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+				  size_t size,
+				  enum dma_data_direction direction)
+{
+	dma_ops->unmap_page(dev, dma_address, size, direction);
+}
+
+static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
+			     int nents, enum dma_data_direction direction)
+{
+	return dma_ops->map_sg(dev, sg, nents, direction);
+}
+
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+				int nents, enum dma_data_direction direction)
+{
+	dma_ops->unmap_sg(dev, sg, nents, direction);
+}
+
+static inline void dma_sync_single_for_cpu(struct device *dev,
+					   dma_addr_t dma_handle, size_t size,
+					   enum dma_data_direction direction)
+{
+	dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction);
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+					      dma_addr_t dma_handle,
+					      size_t size,
+					      enum dma_data_direction direction)
+{
+	if (dma_ops->sync_single_for_device)
+		dma_ops->sync_single_for_device(dev, dma_handle, size,
+						direction);
+}
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+				       struct scatterlist *sg, int nelems,
+				       enum dma_data_direction direction)
+{
+	dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction);
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+					  struct scatterlist *sg, int nelems,
+					  enum dma_data_direction direction)
+{
+	if (dma_ops->sync_sg_for_device)
+		dma_ops->sync_sg_for_device(dev, sg, nelems, direction);
+}
+
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+						 dma_addr_t dma_handle,
+						 unsigned long offset,
+						 size_t size,
+						 enum dma_data_direction dir)
+{
+	dma_sync_single_for_cpu(dev, dma_handle+offset, size, dir);
+}
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+						    dma_addr_t dma_handle,
+						    unsigned long offset,
+						    size_t size,
+						    enum dma_data_direction dir)
+{
+	dma_sync_single_for_device(dev, dma_handle+offset, size, dir);
+}
+
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return (dma_addr == DMA_ERROR_CODE);
+}
+
+static inline int dma_get_cache_alignment(void)
+{
+	/*
+	 * no easy way to get cache size on all processors, so return
+	 * the maximum possible, to be safe
+	 */
+	return (1 << INTERNODE_CACHE_SHIFT);
+}
+
 #endif
diff --git a/arch/sparc/include/asm/dma-mapping_32.h b/arch/sparc/include/asm/dma-mapping_32.h
deleted file mode 100644
index 8a57ea0..0000000
--- a/arch/sparc/include/asm/dma-mapping_32.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef _ASM_SPARC_DMA_MAPPING_H
-#define _ASM_SPARC_DMA_MAPPING_H
-
-#include <linux/types.h>
-
-struct device;
-struct scatterlist;
-struct page;
-
-#define DMA_ERROR_CODE	(~(dma_addr_t)0x0)
-
-extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 dma_mask);
-extern void *dma_alloc_coherent(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t flag);
-extern void dma_free_coherent(struct device *dev, size_t size,
-			      void *cpu_addr, dma_addr_t dma_handle);
-extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-				 size_t size,
-				 enum dma_data_direction direction);
-extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-			     size_t size,
-			     enum dma_data_direction direction);
-extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
-			       unsigned long offset, size_t size,
-			       enum dma_data_direction direction);
-extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-			   size_t size, enum dma_data_direction direction);
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg,
-		      int nents, enum dma_data_direction direction);
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-			 int nents, enum dma_data_direction direction);
-extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-				    size_t size,
-				    enum dma_data_direction direction);
-extern void dma_sync_single_for_device(struct device *dev,
-				       dma_addr_t dma_handle,
-				       size_t size,
-				       enum dma_data_direction direction);
-extern void dma_sync_single_range_for_cpu(struct device *dev,
-					  dma_addr_t dma_handle,
-					  unsigned long offset,
-					  size_t size,
-					  enum dma_data_direction direction);
-extern void dma_sync_single_range_for_device(struct device *dev,
-					     dma_addr_t dma_handle,
-					     unsigned long offset, size_t size,
-					     enum dma_data_direction direction);
-extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-				int nelems, enum dma_data_direction direction);
-extern void dma_sync_sg_for_device(struct device *dev,
-				   struct scatterlist *sg, int nelems,
-				   enum dma_data_direction direction);
-extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
-extern int dma_get_cache_alignment(void);
-
-#define dma_alloc_noncoherent	dma_alloc_coherent
-#define dma_free_noncoherent	dma_free_coherent
-
-#endif /* _ASM_SPARC_DMA_MAPPING_H */
diff --git a/arch/sparc/include/asm/dma-mapping_64.h b/arch/sparc/include/asm/dma-mapping_64.h
deleted file mode 100644
index bfa64f9..0000000
--- a/arch/sparc/include/asm/dma-mapping_64.h
+++ /dev/null
@@ -1,154 +0,0 @@
-#ifndef _ASM_SPARC64_DMA_MAPPING_H
-#define _ASM_SPARC64_DMA_MAPPING_H
-
-#include <linux/scatterlist.h>
-#include <linux/mm.h>
-
-#define DMA_ERROR_CODE	(~(dma_addr_t)0x0)
-
-struct dma_ops {
-	void *(*alloc_coherent)(struct device *dev, size_t size,
-				dma_addr_t *dma_handle, gfp_t flag);
-	void (*free_coherent)(struct device *dev, size_t size,
-			      void *cpu_addr, dma_addr_t dma_handle);
-	dma_addr_t (*map_single)(struct device *dev, void *cpu_addr,
-				 size_t size,
-				 enum dma_data_direction direction);
-	void (*unmap_single)(struct device *dev, dma_addr_t dma_addr,
-			     size_t size,
-			     enum dma_data_direction direction);
-	int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents,
-		      enum dma_data_direction direction);
-	void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
-			 int nhwentries,
-			 enum dma_data_direction direction);
-	void (*sync_single_for_cpu)(struct device *dev,
-				    dma_addr_t dma_handle, size_t size,
-				    enum dma_data_direction direction);
-	void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
-				int nelems,
-				enum dma_data_direction direction);
-};
-extern const struct dma_ops *dma_ops;
-
-extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 dma_mask);
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t *dma_handle, gfp_t flag)
-{
-	return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
-				     void *cpu_addr, dma_addr_t dma_handle)
-{
-	dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
-static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-					size_t size,
-					enum dma_data_direction direction)
-{
-	return dma_ops->map_single(dev, cpu_addr, size, direction);
-}
-
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-				    size_t size,
-				    enum dma_data_direction direction)
-{
-	dma_ops->unmap_single(dev, dma_addr, size, direction);
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction direction)
-{
-	return dma_ops->map_single(dev, page_address(page) + offset,
-				   size, direction);
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-				  size_t size,
-				  enum dma_data_direction direction)
-{
-	dma_ops->unmap_single(dev, dma_address, size, direction);
-}
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction direction)
-{
-	return dma_ops->map_sg(dev, sg, nents, direction);
-}
-
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-				int nents, enum dma_data_direction direction)
-{
-	dma_ops->unmap_sg(dev, sg, nents, direction);
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev,
-					   dma_addr_t dma_handle, size_t size,
-					   enum dma_data_direction direction)
-{
-	dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction);
-}
-
-static inline void dma_sync_single_for_device(struct device *dev,
-					      dma_addr_t dma_handle,
-					      size_t size,
-					      enum dma_data_direction direction)
-{
-	/* No flushing needed to sync cpu writes to the device.  */
-}
-
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
-						 dma_addr_t dma_handle,
-						 unsigned long offset,
-						 size_t size,
-						 enum dma_data_direction direction)
-{
-	dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
-}
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-						    dma_addr_t dma_handle,
-						    unsigned long offset,
-						    size_t size,
-						    enum dma_data_direction direction)
-{
-	/* No flushing needed to sync cpu writes to the device.  */
-}
-
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
-				       struct scatterlist *sg, int nelems,
-				       enum dma_data_direction direction)
-{
-	dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction);
-}
-
-static inline void dma_sync_sg_for_device(struct device *dev,
-					  struct scatterlist *sg, int nelems,
-					  enum dma_data_direction direction)
-{
-	/* No flushing needed to sync cpu writes to the device.  */
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return (dma_addr == DMA_ERROR_CODE);
-}
-
-static inline int dma_get_cache_alignment(void)
-{
-	/* no easy way to get cache size on all processors, so return
-	 * the maximum possible, to be safe */
-	return (1 << INTERNODE_CACHE_SHIFT);
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#define dma_is_consistent(d, h)	(1)
-
-#endif /* _ASM_SPARC64_DMA_MAPPING_H */
diff --git a/arch/sparc/include/asm/ftrace.h b/arch/sparc/include/asm/ftrace.h
index d27716c..b0f18e9 100644
--- a/arch/sparc/include/asm/ftrace.h
+++ b/arch/sparc/include/asm/ftrace.h
@@ -11,4 +11,15 @@
 
 #endif
 
+#ifdef CONFIG_DYNAMIC_FTRACE
+/* reloction of mcount call site is the same as the address */
+static inline unsigned long ftrace_call_adjust(unsigned long addr)
+{
+	return addr;
+}
+
+struct dyn_arch_ftrace {
+};
+#endif /*  CONFIG_DYNAMIC_FTRACE */
+
 #endif /* _ASM_SPARC64_FTRACE */
diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h
index 1acc727..9faa046 100644
--- a/arch/sparc/include/asm/mdesc.h
+++ b/arch/sparc/include/asm/mdesc.h
@@ -71,7 +71,8 @@
 
 extern void mdesc_register_notifier(struct mdesc_notifier_client *client);
 
-extern void mdesc_fill_in_cpu_data(cpumask_t mask);
+extern void mdesc_fill_in_cpu_data(cpumask_t *mask);
+extern void mdesc_populate_present_mask(cpumask_t *mask);
 
 extern void sun4v_mdesc_init(void);
 
diff --git a/arch/sparc/include/asm/percpu_64.h b/arch/sparc/include/asm/percpu_64.h
index bee6459..007aafb 100644
--- a/arch/sparc/include/asm/percpu_64.h
+++ b/arch/sparc/include/asm/percpu_64.h
@@ -7,20 +7,16 @@
 
 #ifdef CONFIG_SMP
 
-extern void real_setup_per_cpu_areas(void);
+#include <asm/trap_block.h>
 
-extern unsigned long __per_cpu_base;
-extern unsigned long __per_cpu_shift;
 #define __per_cpu_offset(__cpu) \
-	(__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift))
+	(trap_block[(__cpu)].__per_cpu_base)
 #define per_cpu_offset(x) (__per_cpu_offset(x))
 
 #define __my_cpu_offset __local_per_cpu_offset
 
 #else /* ! SMP */
 
-#define real_setup_per_cpu_areas()		do { } while (0)
-
 #endif	/* SMP */
 
 #include <asm-generic/percpu.h>
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 900d447..be8d7aa 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -86,6 +86,8 @@
 #endif
 
 extern void prom_build_devicetree(void);
+extern void of_populate_present_mask(void);
+extern void of_fill_in_cpu_data(void);
 
 /* Dummy ref counting routines - to be implemented later */
 static inline struct device_node *of_node_get(struct device_node *node)
diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h
new file mode 100644
index 0000000..7e26b2d
--- /dev/null
+++ b/arch/sparc/include/asm/trap_block.h
@@ -0,0 +1,207 @@
+#ifndef _SPARC_TRAP_BLOCK_H
+#define _SPARC_TRAP_BLOCK_H
+
+#include <asm/hypervisor.h>
+#include <asm/asi.h>
+
+#ifndef __ASSEMBLY__
+
+/* Trap handling code needs to get at a few critical values upon
+ * trap entry and to process TSB misses.  These cannot be in the
+ * per_cpu() area as we really need to lock them into the TLB and
+ * thus make them part of the main kernel image.  As a result we
+ * try to make this as small as possible.
+ *
+ * This is padded out and aligned to 64-bytes to avoid false sharing
+ * on SMP.
+ */
+
+/* If you modify the size of this structure, please update
+ * TRAP_BLOCK_SZ_SHIFT below.
+ */
+struct thread_info;
+struct trap_per_cpu {
+/* D-cache line 1: Basic thread information, cpu and device mondo queues */
+	struct thread_info	*thread;
+	unsigned long		pgd_paddr;
+	unsigned long		cpu_mondo_pa;
+	unsigned long		dev_mondo_pa;
+
+/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */
+	unsigned long		resum_mondo_pa;
+	unsigned long		resum_kernel_buf_pa;
+	unsigned long		nonresum_mondo_pa;
+	unsigned long		nonresum_kernel_buf_pa;
+
+/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */
+	struct hv_fault_status	fault_info;
+
+/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list.  */
+	unsigned long		cpu_mondo_block_pa;
+	unsigned long		cpu_list_pa;
+	unsigned long		tsb_huge;
+	unsigned long		tsb_huge_temp;
+
+/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size.  */
+	unsigned long		irq_worklist_pa;
+	unsigned int		cpu_mondo_qmask;
+	unsigned int		dev_mondo_qmask;
+	unsigned int		resum_qmask;
+	unsigned int		nonresum_qmask;
+	unsigned long		__per_cpu_base;
+} __attribute__((aligned(64)));
+extern struct trap_per_cpu trap_block[NR_CPUS];
+extern void init_cur_cpu_trap(struct thread_info *);
+extern void setup_tba(void);
+extern int ncpus_probed;
+
+extern unsigned long real_hard_smp_processor_id(void);
+
+struct cpuid_patch_entry {
+	unsigned int	addr;
+	unsigned int	cheetah_safari[4];
+	unsigned int	cheetah_jbus[4];
+	unsigned int	starfire[4];
+	unsigned int	sun4v[4];
+};
+extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end;
+
+struct sun4v_1insn_patch_entry {
+	unsigned int	addr;
+	unsigned int	insn;
+};
+extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch,
+	__sun4v_1insn_patch_end;
+
+struct sun4v_2insn_patch_entry {
+	unsigned int	addr;
+	unsigned int	insns[2];
+};
+extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
+	__sun4v_2insn_patch_end;
+
+
+#endif /* !(__ASSEMBLY__) */
+
+#define TRAP_PER_CPU_THREAD		0x00
+#define TRAP_PER_CPU_PGD_PADDR		0x08
+#define TRAP_PER_CPU_CPU_MONDO_PA	0x10
+#define TRAP_PER_CPU_DEV_MONDO_PA	0x18
+#define TRAP_PER_CPU_RESUM_MONDO_PA	0x20
+#define TRAP_PER_CPU_RESUM_KBUF_PA	0x28
+#define TRAP_PER_CPU_NONRESUM_MONDO_PA	0x30
+#define TRAP_PER_CPU_NONRESUM_KBUF_PA	0x38
+#define TRAP_PER_CPU_FAULT_INFO		0x40
+#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA	0xc0
+#define TRAP_PER_CPU_CPU_LIST_PA	0xc8
+#define TRAP_PER_CPU_TSB_HUGE		0xd0
+#define TRAP_PER_CPU_TSB_HUGE_TEMP	0xd8
+#define TRAP_PER_CPU_IRQ_WORKLIST_PA	0xe0
+#define TRAP_PER_CPU_CPU_MONDO_QMASK	0xe8
+#define TRAP_PER_CPU_DEV_MONDO_QMASK	0xec
+#define TRAP_PER_CPU_RESUM_QMASK	0xf0
+#define TRAP_PER_CPU_NONRESUM_QMASK	0xf4
+#define TRAP_PER_CPU_PER_CPU_BASE	0xf8
+
+#define TRAP_BLOCK_SZ_SHIFT		8
+
+#include <asm/scratchpad.h>
+
+#define __GET_CPUID(REG)				\
+	/* Spitfire implementation (default). */	\
+661:	ldxa		[%g0] ASI_UPA_CONFIG, REG;	\
+	srlx		REG, 17, REG;			\
+	 and		REG, 0x1f, REG;			\
+	nop;						\
+	.section	.cpuid_patch, "ax";		\
+	/* Instruction location. */			\
+	.word		661b;				\
+	/* Cheetah Safari implementation. */		\
+	ldxa		[%g0] ASI_SAFARI_CONFIG, REG;	\
+	srlx		REG, 17, REG;			\
+	and		REG, 0x3ff, REG;		\
+	nop;						\
+	/* Cheetah JBUS implementation. */		\
+	ldxa		[%g0] ASI_JBUS_CONFIG, REG;	\
+	srlx		REG, 17, REG;			\
+	and		REG, 0x1f, REG;			\
+	nop;						\
+	/* Starfire implementation. */			\
+	sethi		%hi(0x1fff40000d0 >> 9), REG;	\
+	sllx		REG, 9, REG;			\
+	or		REG, 0xd0, REG;			\
+	lduwa		[REG] ASI_PHYS_BYPASS_EC_E, REG;\
+	/* sun4v implementation. */			\
+	mov		SCRATCHPAD_CPUID, REG;		\
+	ldxa		[REG] ASI_SCRATCHPAD, REG;	\
+	nop;						\
+	nop;						\
+	.previous;
+
+#ifdef CONFIG_SMP
+
+#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	__GET_CPUID(TMP)			\
+	sethi	%hi(trap_block), DEST;		\
+	sllx	TMP, TRAP_BLOCK_SZ_SHIFT, TMP;	\
+	or	DEST, %lo(trap_block), DEST;	\
+	add	DEST, TMP, DEST;		\
+
+/* Clobbers TMP, current address space PGD phys address into DEST.  */
+#define TRAP_LOAD_PGD_PHYS(DEST, TMP)		\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	ldx	[DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
+
+/* Clobbers TMP, loads local processor's IRQ work area into DEST.  */
+#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP)	\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	add	DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST;
+
+/* Clobbers TMP, loads DEST with current thread info pointer.  */
+#define TRAP_LOAD_THREAD_REG(DEST, TMP)		\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	ldx	[DEST + TRAP_PER_CPU_THREAD], DEST;
+
+/* Given the current thread info pointer in THR, load the per-cpu
+ * area base of the current processor into DEST.  REG1, REG2, and REG3 are
+ * clobbered.
+ *
+ * You absolutely cannot use DEST as a temporary in this code.  The
+ * reason is that traps can happen during execution, and return from
+ * trap will load the fully resolved DEST per-cpu base.  This can corrupt
+ * the calculations done by the macro mid-stream.
+ */
+#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3)	\
+	lduh	[THR + TI_CPU], REG1;			\
+	sethi	%hi(trap_block), REG2;			\
+	sllx	REG1, TRAP_BLOCK_SZ_SHIFT, REG1;	\
+	or	REG2, %lo(trap_block), REG2;		\
+	add	REG2, REG1, REG2;			\
+	ldx	[REG2 + TRAP_PER_CPU_PER_CPU_BASE], DEST;
+
+#else
+
+#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	sethi	%hi(trap_block), DEST;		\
+	or	DEST, %lo(trap_block), DEST;	\
+
+/* Uniprocessor versions, we know the cpuid is zero.  */
+#define TRAP_LOAD_PGD_PHYS(DEST, TMP)		\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	ldx	[DEST + TRAP_PER_CPU_PGD_PADDR], DEST;
+
+/* Clobbers TMP, loads local processor's IRQ work area into DEST.  */
+#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP)	\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	add	DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST;
+
+#define TRAP_LOAD_THREAD_REG(DEST, TMP)		\
+	TRAP_LOAD_TRAP_BLOCK(DEST, TMP)		\
+	ldx	[DEST + TRAP_PER_CPU_THREAD], DEST;
+
+/* No per-cpu areas on uniprocessor, so no need to load DEST.  */
+#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3)
+
+#endif /* !(CONFIG_SMP) */
+
+#endif /* _SPARC_TRAP_BLOCK_H */
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index b8eb71e..b2c406d 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -394,8 +394,9 @@
 #define __NR_accept4		323
 #define __NR_preadv		324
 #define __NR_pwritev		325
+#define __NR_rt_tgsigqueueinfo	326
 
-#define NR_SYSCALLS		326
+#define NR_SYSCALLS		327
 
 #ifdef __32bit_syscall_numbers__
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 54742e5..475ce46 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -37,6 +37,7 @@
 obj-$(CONFIG_SPARC32)   += muldiv.o
 obj-y                   += prom_common.o
 obj-y                   += prom_$(BITS).o
+obj-y                   += of_device_common.o
 obj-y                   += of_device_$(BITS).o
 obj-$(CONFIG_SPARC64)   += prom_irqtrans.o
 
@@ -54,6 +55,7 @@
 obj-$(CONFIG_SPARC64)   += mdesc.o
 obj-$(CONFIG_SPARC64)	+= pcr.o
 obj-$(CONFIG_SPARC64)	+= nmi.o
+obj-$(CONFIG_SPARC64_SMP) += cpumap.o
 
 # sparc32 do not use GENERIC_HARDIRQS but uses the generic devres implementation
 obj-$(CONFIG_SPARC32)     += devres.o
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
new file mode 100644
index 0000000..7430ed0
--- /dev/null
+++ b/arch/sparc/kernel/cpumap.c
@@ -0,0 +1,431 @@
+/* cpumap.c: used for optimizing CPU assignment
+ *
+ * Copyright (C) 2009 Hong H. Pham <hong.pham@windriver.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/cpumask.h>
+#include <linux/spinlock.h>
+#include <asm/cpudata.h>
+#include "cpumap.h"
+
+
+enum {
+	CPUINFO_LVL_ROOT = 0,
+	CPUINFO_LVL_NODE,
+	CPUINFO_LVL_CORE,
+	CPUINFO_LVL_PROC,
+	CPUINFO_LVL_MAX,
+};
+
+enum {
+	ROVER_NO_OP              = 0,
+	/* Increment rover every time level is visited */
+	ROVER_INC_ON_VISIT       = 1 << 0,
+	/* Increment parent's rover every time rover wraps around */
+	ROVER_INC_PARENT_ON_LOOP = 1 << 1,
+};
+
+struct cpuinfo_node {
+	int id;
+	int level;
+	int num_cpus;    /* Number of CPUs in this hierarchy */
+	int parent_index;
+	int child_start; /* Array index of the first child node */
+	int child_end;   /* Array index of the last child node */
+	int rover;       /* Child node iterator */
+};
+
+struct cpuinfo_level {
+	int start_index; /* Index of first node of a level in a cpuinfo tree */
+	int end_index;   /* Index of last node of a level in a cpuinfo tree */
+	int num_nodes;   /* Number of nodes in a level in a cpuinfo tree */
+};
+
+struct cpuinfo_tree {
+	int total_nodes;
+
+	/* Offsets into nodes[] for each level of the tree */
+	struct cpuinfo_level level[CPUINFO_LVL_MAX];
+	struct cpuinfo_node  nodes[0];
+};
+
+
+static struct cpuinfo_tree *cpuinfo_tree;
+
+static u16 cpu_distribution_map[NR_CPUS];
+static DEFINE_SPINLOCK(cpu_map_lock);
+
+
+/* Niagara optimized cpuinfo tree traversal. */
+static const int niagara_iterate_method[] = {
+	[CPUINFO_LVL_ROOT] = ROVER_NO_OP,
+
+	/* Strands (or virtual CPUs) within a core may not run concurrently
+	 * on the Niagara, as instruction pipeline(s) are shared.  Distribute
+	 * work to strands in different cores first for better concurrency.
+	 * Go to next NUMA node when all cores are used.
+	 */
+	[CPUINFO_LVL_NODE] = ROVER_INC_ON_VISIT|ROVER_INC_PARENT_ON_LOOP,
+
+	/* Strands are grouped together by proc_id in cpuinfo_sparc, i.e.
+	 * a proc_id represents an instruction pipeline.  Distribute work to
+	 * strands in different proc_id groups if the core has multiple
+	 * instruction pipelines (e.g. the Niagara 2/2+ has two).
+	 */
+	[CPUINFO_LVL_CORE] = ROVER_INC_ON_VISIT,
+
+	/* Pick the next strand in the proc_id group. */
+	[CPUINFO_LVL_PROC] = ROVER_INC_ON_VISIT,
+};
+
+/* Generic cpuinfo tree traversal.  Distribute work round robin across NUMA
+ * nodes.
+ */
+static const int generic_iterate_method[] = {
+	[CPUINFO_LVL_ROOT] = ROVER_INC_ON_VISIT,
+	[CPUINFO_LVL_NODE] = ROVER_NO_OP,
+	[CPUINFO_LVL_CORE] = ROVER_INC_PARENT_ON_LOOP,
+	[CPUINFO_LVL_PROC] = ROVER_INC_ON_VISIT|ROVER_INC_PARENT_ON_LOOP,
+};
+
+
+static int cpuinfo_id(int cpu, int level)
+{
+	int id;
+
+	switch (level) {
+	case CPUINFO_LVL_ROOT:
+		id = 0;
+		break;
+	case CPUINFO_LVL_NODE:
+		id = cpu_to_node(cpu);
+		break;
+	case CPUINFO_LVL_CORE:
+		id = cpu_data(cpu).core_id;
+		break;
+	case CPUINFO_LVL_PROC:
+		id = cpu_data(cpu).proc_id;
+		break;
+	default:
+		id = -EINVAL;
+	}
+	return id;
+}
+
+/*
+ * Enumerate the CPU information in __cpu_data to determine the start index,
+ * end index, and number of nodes for each level in the cpuinfo tree.  The
+ * total number of cpuinfo nodes required to build the tree is returned.
+ */
+static int enumerate_cpuinfo_nodes(struct cpuinfo_level *tree_level)
+{
+	int prev_id[CPUINFO_LVL_MAX];
+	int i, n, num_nodes;
+
+	for (i = CPUINFO_LVL_ROOT; i < CPUINFO_LVL_MAX; i++) {
+		struct cpuinfo_level *lv = &tree_level[i];
+
+		prev_id[i] = -1;
+		lv->start_index = lv->end_index = lv->num_nodes = 0;
+	}
+
+	num_nodes = 1; /* Include the root node */
+
+	for (i = 0; i < num_possible_cpus(); i++) {
+		if (!cpu_online(i))
+			continue;
+
+		n = cpuinfo_id(i, CPUINFO_LVL_NODE);
+		if (n > prev_id[CPUINFO_LVL_NODE]) {
+			tree_level[CPUINFO_LVL_NODE].num_nodes++;
+			prev_id[CPUINFO_LVL_NODE] = n;
+			num_nodes++;
+		}
+		n = cpuinfo_id(i, CPUINFO_LVL_CORE);
+		if (n > prev_id[CPUINFO_LVL_CORE]) {
+			tree_level[CPUINFO_LVL_CORE].num_nodes++;
+			prev_id[CPUINFO_LVL_CORE] = n;
+			num_nodes++;
+		}
+		n = cpuinfo_id(i, CPUINFO_LVL_PROC);
+		if (n > prev_id[CPUINFO_LVL_PROC]) {
+			tree_level[CPUINFO_LVL_PROC].num_nodes++;
+			prev_id[CPUINFO_LVL_PROC] = n;
+			num_nodes++;
+		}
+	}
+
+	tree_level[CPUINFO_LVL_ROOT].num_nodes = 1;
+
+	n = tree_level[CPUINFO_LVL_NODE].num_nodes;
+	tree_level[CPUINFO_LVL_NODE].start_index = 1;
+	tree_level[CPUINFO_LVL_NODE].end_index   = n;
+
+	n++;
+	tree_level[CPUINFO_LVL_CORE].start_index = n;
+	n += tree_level[CPUINFO_LVL_CORE].num_nodes;
+	tree_level[CPUINFO_LVL_CORE].end_index   = n - 1;
+
+	tree_level[CPUINFO_LVL_PROC].start_index = n;
+	n += tree_level[CPUINFO_LVL_PROC].num_nodes;
+	tree_level[CPUINFO_LVL_PROC].end_index   = n - 1;
+
+	return num_nodes;
+}
+
+/* Build a tree representation of the CPU hierarchy using the per CPU
+ * information in __cpu_data.  Entries in __cpu_data[0..NR_CPUS] are
+ * assumed to be sorted in ascending order based on node, core_id, and
+ * proc_id (in order of significance).
+ */
+static struct cpuinfo_tree *build_cpuinfo_tree(void)
+{
+	struct cpuinfo_tree *new_tree;
+	struct cpuinfo_node *node;
+	struct cpuinfo_level tmp_level[CPUINFO_LVL_MAX];
+	int num_cpus[CPUINFO_LVL_MAX];
+	int level_rover[CPUINFO_LVL_MAX];
+	int prev_id[CPUINFO_LVL_MAX];
+	int n, id, cpu, prev_cpu, last_cpu, level;
+
+	n = enumerate_cpuinfo_nodes(tmp_level);
+
+	new_tree = kzalloc(sizeof(struct cpuinfo_tree) +
+	                   (sizeof(struct cpuinfo_node) * n), GFP_ATOMIC);
+	if (!new_tree)
+		return NULL;
+
+	new_tree->total_nodes = n;
+	memcpy(&new_tree->level, tmp_level, sizeof(tmp_level));
+
+	prev_cpu = cpu = first_cpu(cpu_online_map);
+
+	/* Initialize all levels in the tree with the first CPU */
+	for (level = CPUINFO_LVL_PROC; level >= CPUINFO_LVL_ROOT; level--) {
+		n = new_tree->level[level].start_index;
+
+		level_rover[level] = n;
+		node = &new_tree->nodes[n];
+
+		id = cpuinfo_id(cpu, level);
+		if (unlikely(id < 0)) {
+			kfree(new_tree);
+			return NULL;
+		}
+		node->id = id;
+		node->level = level;
+		node->num_cpus = 1;
+
+		node->parent_index = (level > CPUINFO_LVL_ROOT)
+		    ? new_tree->level[level - 1].start_index : -1;
+
+		node->child_start = node->child_end = node->rover =
+		    (level == CPUINFO_LVL_PROC)
+		    ? cpu : new_tree->level[level + 1].start_index;
+
+		prev_id[level] = node->id;
+		num_cpus[level] = 1;
+	}
+
+	for (last_cpu = (num_possible_cpus() - 1); last_cpu >= 0; last_cpu--) {
+		if (cpu_online(last_cpu))
+			break;
+	}
+
+	while (++cpu <= last_cpu) {
+		if (!cpu_online(cpu))
+			continue;
+
+		for (level = CPUINFO_LVL_PROC; level >= CPUINFO_LVL_ROOT;
+		     level--) {
+			id = cpuinfo_id(cpu, level);
+			if (unlikely(id < 0)) {
+				kfree(new_tree);
+				return NULL;
+			}
+
+			if ((id != prev_id[level]) || (cpu == last_cpu)) {
+				prev_id[level] = id;
+				node = &new_tree->nodes[level_rover[level]];
+				node->num_cpus = num_cpus[level];
+				num_cpus[level] = 1;
+
+				if (cpu == last_cpu)
+					node->num_cpus++;
+
+				/* Connect tree node to parent */
+				if (level == CPUINFO_LVL_ROOT)
+					node->parent_index = -1;
+				else
+					node->parent_index =
+					    level_rover[level - 1];
+
+				if (level == CPUINFO_LVL_PROC) {
+					node->child_end =
+					    (cpu == last_cpu) ? cpu : prev_cpu;
+				} else {
+					node->child_end =
+					    level_rover[level + 1] - 1;
+				}
+
+				/* Initialize the next node in the same level */
+				n = ++level_rover[level];
+				if (n <= new_tree->level[level].end_index) {
+					node = &new_tree->nodes[n];
+					node->id = id;
+					node->level = level;
+
+					/* Connect node to child */
+					node->child_start = node->child_end =
+					node->rover =
+					    (level == CPUINFO_LVL_PROC)
+					    ? cpu : level_rover[level + 1];
+				}
+			} else
+				num_cpus[level]++;
+		}
+		prev_cpu = cpu;
+	}
+
+	return new_tree;
+}
+
+static void increment_rover(struct cpuinfo_tree *t, int node_index,
+                            int root_index, const int *rover_inc_table)
+{
+	struct cpuinfo_node *node = &t->nodes[node_index];
+	int top_level, level;
+
+	top_level = t->nodes[root_index].level;
+	for (level = node->level; level >= top_level; level--) {
+		node->rover++;
+		if (node->rover <= node->child_end)
+			return;
+
+		node->rover = node->child_start;
+		/* If parent's rover does not need to be adjusted, stop here. */
+		if ((level == top_level) ||
+		    !(rover_inc_table[level] & ROVER_INC_PARENT_ON_LOOP))
+			return;
+
+		node = &t->nodes[node->parent_index];
+	}
+}
+
+static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index)
+{
+	const int *rover_inc_table;
+	int level, new_index, index = root_index;
+
+	switch (sun4v_chip_type) {
+	case SUN4V_CHIP_NIAGARA1:
+	case SUN4V_CHIP_NIAGARA2:
+		rover_inc_table = niagara_iterate_method;
+		break;
+	default:
+		rover_inc_table = generic_iterate_method;
+	}
+
+	for (level = t->nodes[root_index].level; level < CPUINFO_LVL_MAX;
+	     level++) {
+		new_index = t->nodes[index].rover;
+		if (rover_inc_table[level] & ROVER_INC_ON_VISIT)
+			increment_rover(t, index, root_index, rover_inc_table);
+
+		index = new_index;
+	}
+	return index;
+}
+
+static void _cpu_map_rebuild(void)
+{
+	int i;
+
+	if (cpuinfo_tree) {
+		kfree(cpuinfo_tree);
+		cpuinfo_tree = NULL;
+	}
+
+	cpuinfo_tree = build_cpuinfo_tree();
+	if (!cpuinfo_tree)
+		return;
+
+	/* Build CPU distribution map that spans all online CPUs.  No need
+	 * to check if the CPU is online, as that is done when the cpuinfo
+	 * tree is being built.
+	 */
+	for (i = 0; i < cpuinfo_tree->nodes[0].num_cpus; i++)
+		cpu_distribution_map[i] = iterate_cpu(cpuinfo_tree, 0);
+}
+
+/* Fallback if the cpuinfo tree could not be built.  CPU mapping is linear
+ * round robin.
+ */
+static int simple_map_to_cpu(unsigned int index)
+{
+	int i, end, cpu_rover;
+
+	cpu_rover = 0;
+	end = index % num_online_cpus();
+	for (i = 0; i < num_possible_cpus(); i++) {
+		if (cpu_online(cpu_rover)) {
+			if (cpu_rover >= end)
+				return cpu_rover;
+
+			cpu_rover++;
+		}
+	}
+
+	/* Impossible, since num_online_cpus() <= num_possible_cpus() */
+	return first_cpu(cpu_online_map);
+}
+
+static int _map_to_cpu(unsigned int index)
+{
+	struct cpuinfo_node *root_node;
+
+	if (unlikely(!cpuinfo_tree)) {
+		_cpu_map_rebuild();
+		if (!cpuinfo_tree)
+			return simple_map_to_cpu(index);
+	}
+
+	root_node = &cpuinfo_tree->nodes[0];
+#ifdef CONFIG_HOTPLUG_CPU
+	if (unlikely(root_node->num_cpus != num_online_cpus())) {
+		_cpu_map_rebuild();
+		if (!cpuinfo_tree)
+			return simple_map_to_cpu(index);
+	}
+#endif
+	return cpu_distribution_map[index % root_node->num_cpus];
+}
+
+int map_to_cpu(unsigned int index)
+{
+	int mapped_cpu;
+	unsigned long flag;
+
+	spin_lock_irqsave(&cpu_map_lock, flag);
+	mapped_cpu = _map_to_cpu(index);
+
+#ifdef CONFIG_HOTPLUG_CPU
+	while (unlikely(!cpu_online(mapped_cpu)))
+		mapped_cpu = _map_to_cpu(index);
+#endif
+	spin_unlock_irqrestore(&cpu_map_lock, flag);
+	return mapped_cpu;
+}
+EXPORT_SYMBOL(map_to_cpu);
+
+void cpu_map_rebuild(void)
+{
+	unsigned long flag;
+
+	spin_lock_irqsave(&cpu_map_lock, flag);
+	_cpu_map_rebuild();
+	spin_unlock_irqrestore(&cpu_map_lock, flag);
+}
diff --git a/arch/sparc/kernel/cpumap.h b/arch/sparc/kernel/cpumap.h
new file mode 100644
index 0000000..e639880
--- /dev/null
+++ b/arch/sparc/kernel/cpumap.h
@@ -0,0 +1,16 @@
+#ifndef _CPUMAP_H
+#define _CPUMAP_H
+
+#ifdef CONFIG_SMP
+extern void cpu_map_rebuild(void);
+extern int  map_to_cpu(unsigned int index);
+#define cpu_map_init() cpu_map_rebuild()
+#else
+#define cpu_map_init() do {} while (0)
+static inline int map_to_cpu(unsigned int index)
+{
+	return raw_smp_processor_id();
+}
+#endif
+
+#endif
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
index ebc8403..524c32f 100644
--- a/arch/sparc/kernel/dma.c
+++ b/arch/sparc/kernel/dma.c
@@ -35,8 +35,8 @@
 }
 EXPORT_SYMBOL(dma_set_mask);
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t flag)
+static void *dma32_alloc_coherent(struct device *dev, size_t size,
+				  dma_addr_t *dma_handle, gfp_t flag)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type)
@@ -44,10 +44,9 @@
 #endif
 	return sbus_alloc_consistent(dev, size, dma_handle);
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *cpu_addr, dma_addr_t dma_handle)
+static void dma32_free_coherent(struct device *dev, size_t size,
+				void *cpu_addr, dma_addr_t dma_handle)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -58,38 +57,10 @@
 #endif
 	sbus_free_consistent(dev, size, cpu_addr, dma_handle);
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
-dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-			  size_t size, enum dma_data_direction direction)
-{
-#ifdef CONFIG_PCI
-	if (dev->bus == &pci_bus_type)
-		return pci_map_single(to_pci_dev(dev), cpu_addr,
-				      size, (int)direction);
-#endif
-	return sbus_map_single(dev, cpu_addr, size, (int)direction);
-}
-EXPORT_SYMBOL(dma_map_single);
-
-void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-		      size_t size,
-		      enum dma_data_direction direction)
-{
-#ifdef CONFIG_PCI
-	if (dev->bus == &pci_bus_type) {
-		pci_unmap_single(to_pci_dev(dev), dma_addr,
-				 size, (int)direction);
-		return;
-	}
-#endif
-	sbus_unmap_single(dev, dma_addr, size, (int)direction);
-}
-EXPORT_SYMBOL(dma_unmap_single);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
-			unsigned long offset, size_t size,
-			enum dma_data_direction direction)
+static dma_addr_t dma32_map_page(struct device *dev, struct page *page,
+				 unsigned long offset, size_t size,
+				 enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type)
@@ -99,10 +70,9 @@
 	return sbus_map_single(dev, page_address(page) + offset,
 			       size, (int)direction);
 }
-EXPORT_SYMBOL(dma_map_page);
 
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-		    size_t size, enum dma_data_direction direction)
+static void dma32_unmap_page(struct device *dev, dma_addr_t dma_address,
+			     size_t size, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -113,10 +83,9 @@
 #endif
 	sbus_unmap_single(dev, dma_address, size, (int)direction);
 }
-EXPORT_SYMBOL(dma_unmap_page);
 
-int dma_map_sg(struct device *dev, struct scatterlist *sg,
-			     int nents, enum dma_data_direction direction)
+static int dma32_map_sg(struct device *dev, struct scatterlist *sg,
+			int nents, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type)
@@ -124,10 +93,9 @@
 #endif
 	return sbus_map_sg(dev, sg, nents, direction);
 }
-EXPORT_SYMBOL(dma_map_sg);
 
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-		  int nents, enum dma_data_direction direction)
+void dma32_unmap_sg(struct device *dev, struct scatterlist *sg,
+		    int nents, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -137,10 +105,10 @@
 #endif
 	sbus_unmap_sg(dev, sg, nents, (int)direction);
 }
-EXPORT_SYMBOL(dma_unmap_sg);
 
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			     size_t size, enum dma_data_direction direction)
+static void dma32_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+				      size_t size,
+				      enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -151,10 +119,10 @@
 #endif
 	sbus_dma_sync_single_for_cpu(dev, dma_handle, size, (int) direction);
 }
-EXPORT_SYMBOL(dma_sync_single_for_cpu);
 
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-				size_t size, enum dma_data_direction direction)
+static void dma32_sync_single_for_device(struct device *dev,
+					 dma_addr_t dma_handle, size_t size,
+					 enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -165,28 +133,9 @@
 #endif
 	sbus_dma_sync_single_for_device(dev, dma_handle, size, (int) direction);
 }
-EXPORT_SYMBOL(dma_sync_single_for_device);
 
-void dma_sync_single_range_for_cpu(struct device *dev,
-				   dma_addr_t dma_handle,
-				   unsigned long offset,
-				   size_t size,
-				   enum dma_data_direction direction)
-{
-	dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
-}
-EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
-
-void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				      unsigned long offset, size_t size,
-				      enum dma_data_direction direction)
-{
-	dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
-}
-EXPORT_SYMBOL(dma_sync_single_range_for_device);
-
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-			 int nelems, enum dma_data_direction direction)
+static void dma32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+				  int nelems, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -197,11 +146,10 @@
 #endif
 	BUG();
 }
-EXPORT_SYMBOL(dma_sync_sg_for_cpu);
 
-void dma_sync_sg_for_device(struct device *dev,
-			    struct scatterlist *sg, int nelems,
-			    enum dma_data_direction direction)
+static void dma32_sync_sg_for_device(struct device *dev,
+				     struct scatterlist *sg, int nelems,
+				     enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
 	if (dev->bus == &pci_bus_type) {
@@ -212,16 +160,19 @@
 #endif
 	BUG();
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
 
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return (dma_addr == DMA_ERROR_CODE);
-}
-EXPORT_SYMBOL(dma_mapping_error);
+static const struct dma_ops dma32_dma_ops = {
+	.alloc_coherent		= dma32_alloc_coherent,
+	.free_coherent		= dma32_free_coherent,
+	.map_page		= dma32_map_page,
+	.unmap_page		= dma32_unmap_page,
+	.map_sg			= dma32_map_sg,
+	.unmap_sg		= dma32_unmap_sg,
+	.sync_single_for_cpu	= dma32_sync_single_for_cpu,
+	.sync_single_for_device	= dma32_sync_single_for_device,
+	.sync_sg_for_cpu	= dma32_sync_sg_for_cpu,
+	.sync_sg_for_device	= dma32_sync_sg_for_device,
+};
 
-int dma_get_cache_alignment(void)
-{
-	return 32;
-}
-EXPORT_SYMBOL(dma_get_cache_alignment);
+const struct dma_ops *dma_ops = &dma32_dma_ops;
+EXPORT_SYMBOL(dma_ops);
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 90350f83..4a700f4 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -544,7 +544,8 @@
 			     resp_len, ncpus, mask,
 			     DR_CPU_STAT_CONFIGURED);
 
-	mdesc_fill_in_cpu_data(*mask);
+	mdesc_populate_present_mask(mask);
+	mdesc_fill_in_cpu_data(mask);
 
 	for_each_cpu_mask(cpu, *mask) {
 		int err;
diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c
index d0218e7..d3b1a30 100644
--- a/arch/sparc/kernel/ftrace.c
+++ b/arch/sparc/kernel/ftrace.c
@@ -7,14 +7,10 @@
 
 #include <asm/ftrace.h>
 
+#ifdef CONFIG_DYNAMIC_FTRACE
 static const u32 ftrace_nop = 0x01000000;
 
-unsigned char *ftrace_nop_replace(void)
-{
-	return (char *)&ftrace_nop;
-}
-
-unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr)
+static u32 ftrace_call_replace(unsigned long ip, unsigned long addr)
 {
 	static u32 call;
 	s32 off;
@@ -22,15 +18,11 @@
 	off = ((s32)addr - (s32)ip);
 	call = 0x40000000 | ((u32)off >> 2);
 
-	return (unsigned char *) &call;
+	return call;
 }
 
-int
-ftrace_modify_code(unsigned long ip, unsigned char *old_code,
-		   unsigned char *new_code)
+static int ftrace_modify_code(unsigned long ip, u32 old, u32 new)
 {
-	u32 old = *(u32 *)old_code;
-	u32 new = *(u32 *)new_code;
 	u32 replaced;
 	int faulted;
 
@@ -59,18 +51,43 @@
 	return faulted;
 }
 
+int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr)
+{
+	unsigned long ip = rec->ip;
+	u32 old, new;
+
+	old = ftrace_call_replace(ip, addr);
+	new = ftrace_nop;
+	return ftrace_modify_code(ip, old, new);
+}
+
+int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
+{
+	unsigned long ip = rec->ip;
+	u32 old, new;
+
+	old = ftrace_nop;
+	new = ftrace_call_replace(ip, addr);
+	return ftrace_modify_code(ip, old, new);
+}
+
 int ftrace_update_ftrace_func(ftrace_func_t func)
 {
 	unsigned long ip = (unsigned long)(&ftrace_call);
-	unsigned char old[MCOUNT_INSN_SIZE], *new;
+	u32 old, new;
 
-	memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE);
+	old = *(u32 *) &ftrace_call;
 	new = ftrace_call_replace(ip, (unsigned long)func);
 	return ftrace_modify_code(ip, old, new);
 }
 
 int __init ftrace_dyn_arch_init(void *data)
 {
-	ftrace_mcount_set(data);
+	unsigned long *p = data;
+
+	*p = 0;
+
 	return 0;
 }
+#endif
+
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 91bf4c7..f8f2105 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -641,28 +641,6 @@
 	/* Not reached... */
 
 1:
-	/* If we boot on a non-zero cpu, all of the per-cpu
-	 * variable references we make before setting up the
-	 * per-cpu areas will use a bogus offset.  Put a
-	 * compensating factor into __per_cpu_base to handle
-	 * this cleanly.
-	 *
-	 * What the per-cpu code calculates is:
-	 *
-	 *	__per_cpu_base + (cpu << __per_cpu_shift)
-	 *
-	 * These two variables are zero initially, so to
-	 * make it all cancel out to zero we need to put
-	 * "0 - (cpu << 0)" into __per_cpu_base so that the
-	 * above formula evaluates to zero.
-	 *
-	 * We cannot even perform a printk() until this stuff
-	 * is setup as that calls cpu_clock() which uses
-	 * per-cpu variables.
-	 */
-	sub	%g0, %o0, %o1
-	sethi	%hi(__per_cpu_base), %o2
-	stx	%o1, [%o2 + %lo(__per_cpu_base)]
 #else
 	mov	0, %o0
 #endif
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index d8900e1..0aeaefe 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -351,8 +351,9 @@
 		free_pages((unsigned long)cpu, order);
 }
 
-static dma_addr_t dma_4u_map_single(struct device *dev, void *ptr, size_t sz,
-				    enum dma_data_direction direction)
+static dma_addr_t dma_4u_map_page(struct device *dev, struct page *page,
+				  unsigned long offset, size_t sz,
+				  enum dma_data_direction direction)
 {
 	struct iommu *iommu;
 	struct strbuf *strbuf;
@@ -368,7 +369,7 @@
 	if (unlikely(direction == DMA_NONE))
 		goto bad_no_ctx;
 
-	oaddr = (unsigned long)ptr;
+	oaddr = (unsigned long)(page_address(page) + offset);
 	npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK);
 	npages >>= IO_PAGE_SHIFT;
 
@@ -472,8 +473,8 @@
 		       vaddr, ctx, npages);
 }
 
-static void dma_4u_unmap_single(struct device *dev, dma_addr_t bus_addr,
-				size_t sz, enum dma_data_direction direction)
+static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr,
+			      size_t sz, enum dma_data_direction direction)
 {
 	struct iommu *iommu;
 	struct strbuf *strbuf;
@@ -824,8 +825,8 @@
 static const struct dma_ops sun4u_dma_ops = {
 	.alloc_coherent		= dma_4u_alloc_coherent,
 	.free_coherent		= dma_4u_free_coherent,
-	.map_single		= dma_4u_map_single,
-	.unmap_single		= dma_4u_unmap_single,
+	.map_page		= dma_4u_map_page,
+	.unmap_page		= dma_4u_unmap_page,
 	.map_sg			= dma_4u_map_sg,
 	.unmap_sg		= dma_4u_unmap_sg,
 	.sync_single_for_cpu	= dma_4u_sync_single_for_cpu,
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index e5e78f9..bd07505 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -45,6 +45,7 @@
 #include <asm/cacheflush.h>
 
 #include "entry.h"
+#include "cpumap.h"
 
 #define NUM_IVECS	(IMAP_INR + 1)
 
@@ -256,35 +257,13 @@
 	int cpuid;
 
 	cpumask_copy(&mask, irq_desc[virt_irq].affinity);
-	if (cpus_equal(mask, CPU_MASK_ALL)) {
-		static int irq_rover;
-		static DEFINE_SPINLOCK(irq_rover_lock);
-		unsigned long flags;
-
-		/* Round-robin distribution... */
-	do_round_robin:
-		spin_lock_irqsave(&irq_rover_lock, flags);
-
-		while (!cpu_online(irq_rover)) {
-			if (++irq_rover >= nr_cpu_ids)
-				irq_rover = 0;
-		}
-		cpuid = irq_rover;
-		do {
-			if (++irq_rover >= nr_cpu_ids)
-				irq_rover = 0;
-		} while (!cpu_online(irq_rover));
-
-		spin_unlock_irqrestore(&irq_rover_lock, flags);
+	if (cpus_equal(mask, cpu_online_map)) {
+		cpuid = map_to_cpu(virt_irq);
 	} else {
 		cpumask_t tmp;
 
 		cpus_and(tmp, cpu_online_map, mask);
-
-		if (cpus_empty(tmp))
-			goto do_round_robin;
-
-		cpuid = first_cpu(tmp);
+		cpuid = cpus_empty(tmp) ? map_to_cpu(virt_irq) : first_cpu(tmp);
 	}
 
 	return cpuid;
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index f0e6ed2..938da19 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -574,7 +574,7 @@
 	mdesc_release(hp);
 }
 
-static void __devinit fill_in_one_cache(cpuinfo_sparc *c,
+static void __cpuinit fill_in_one_cache(cpuinfo_sparc *c,
 					struct mdesc_handle *hp,
 					u64 mp)
 {
@@ -619,8 +619,7 @@
 	}
 }
 
-static void __devinit mark_core_ids(struct mdesc_handle *hp, u64 mp,
-				    int core_id)
+static void __cpuinit mark_core_ids(struct mdesc_handle *hp, u64 mp, int core_id)
 {
 	u64 a;
 
@@ -653,7 +652,7 @@
 	}
 }
 
-static void __devinit set_core_ids(struct mdesc_handle *hp)
+static void __cpuinit set_core_ids(struct mdesc_handle *hp)
 {
 	int idx;
 	u64 mp;
@@ -678,8 +677,7 @@
 	}
 }
 
-static void __devinit mark_proc_ids(struct mdesc_handle *hp, u64 mp,
-				    int proc_id)
+static void __cpuinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, int proc_id)
 {
 	u64 a;
 
@@ -698,8 +696,7 @@
 	}
 }
 
-static void __devinit __set_proc_ids(struct mdesc_handle *hp,
-				     const char *exec_unit_name)
+static void __cpuinit __set_proc_ids(struct mdesc_handle *hp, const char *exec_unit_name)
 {
 	int idx;
 	u64 mp;
@@ -720,13 +717,13 @@
 	}
 }
 
-static void __devinit set_proc_ids(struct mdesc_handle *hp)
+static void __cpuinit set_proc_ids(struct mdesc_handle *hp)
 {
 	__set_proc_ids(hp, "exec_unit");
 	__set_proc_ids(hp, "exec-unit");
 }
 
-static void __devinit get_one_mondo_bits(const u64 *p, unsigned int *mask,
+static void __cpuinit get_one_mondo_bits(const u64 *p, unsigned int *mask,
 					 unsigned char def)
 {
 	u64 val;
@@ -745,7 +742,7 @@
 	*mask = ((1U << def) * 64U) - 1U;
 }
 
-static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp,
+static void __cpuinit get_mondo_data(struct mdesc_handle *hp, u64 mp,
 				     struct trap_per_cpu *tb)
 {
 	const u64 *val;
@@ -763,23 +760,15 @@
 	get_one_mondo_bits(val, &tb->nonresum_qmask, 2);
 }
 
-void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask)
+static void * __cpuinit mdesc_iterate_over_cpus(void *(*func)(struct mdesc_handle *, u64, int, void *), void *arg, cpumask_t *mask)
 {
 	struct mdesc_handle *hp = mdesc_grab();
+	void *ret = NULL;
 	u64 mp;
 
-	ncpus_probed = 0;
 	mdesc_for_each_node_by_name(hp, mp, "cpu") {
 		const u64 *id = mdesc_get_property(hp, mp, "id", NULL);
-		const u64 *cfreq = mdesc_get_property(hp, mp, "clock-frequency", NULL);
-		struct trap_per_cpu *tb;
-		cpuinfo_sparc *c;
-		int cpuid;
-		u64 a;
-
-		ncpus_probed++;
-
-		cpuid = *id;
+		int cpuid = *id;
 
 #ifdef CONFIG_SMP
 		if (cpuid >= NR_CPUS) {
@@ -788,62 +777,104 @@
 			       cpuid, NR_CPUS);
 			continue;
 		}
-		if (!cpu_isset(cpuid, mask))
+		if (!cpu_isset(cpuid, *mask))
 			continue;
-#else
-		/* On uniprocessor we only want the values for the
-		 * real physical cpu the kernel booted onto, however
-		 * cpu_data() only has one entry at index 0.
-		 */
-		if (cpuid != real_hard_smp_processor_id())
-			continue;
-		cpuid = 0;
 #endif
 
-		c = &cpu_data(cpuid);
-		c->clock_tick = *cfreq;
+		ret = func(hp, mp, cpuid, arg);
+		if (ret)
+			goto out;
+	}
+out:
+	mdesc_release(hp);
+	return ret;
+}
 
-		tb = &trap_block[cpuid];
-		get_mondo_data(hp, mp, tb);
+static void * __cpuinit record_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg)
+{
+	ncpus_probed++;
+#ifdef CONFIG_SMP
+	set_cpu_present(cpuid, true);
+#endif
+	return NULL;
+}
 
-		mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) {
-			u64 j, t = mdesc_arc_target(hp, a);
-			const char *t_name;
+void __cpuinit mdesc_populate_present_mask(cpumask_t *mask)
+{
+	if (tlb_type != hypervisor)
+		return;
 
-			t_name = mdesc_node_name(hp, t);
-			if (!strcmp(t_name, "cache")) {
-				fill_in_one_cache(c, hp, t);
-				continue;
-			}
+	ncpus_probed = 0;
+	mdesc_iterate_over_cpus(record_one_cpu, NULL, mask);
+}
 
-			mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_FWD) {
-				u64 n = mdesc_arc_target(hp, j);
-				const char *n_name;
+static void * __cpuinit fill_in_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg)
+{
+	const u64 *cfreq = mdesc_get_property(hp, mp, "clock-frequency", NULL);
+	struct trap_per_cpu *tb;
+	cpuinfo_sparc *c;
+	u64 a;
 
-				n_name = mdesc_node_name(hp, n);
-				if (!strcmp(n_name, "cache"))
-					fill_in_one_cache(c, hp, n);
-			}
+#ifndef CONFIG_SMP
+	/* On uniprocessor we only want the values for the
+	 * real physical cpu the kernel booted onto, however
+	 * cpu_data() only has one entry at index 0.
+	 */
+	if (cpuid != real_hard_smp_processor_id())
+		return NULL;
+	cpuid = 0;
+#endif
+
+	c = &cpu_data(cpuid);
+	c->clock_tick = *cfreq;
+
+	tb = &trap_block[cpuid];
+	get_mondo_data(hp, mp, tb);
+
+	mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) {
+		u64 j, t = mdesc_arc_target(hp, a);
+		const char *t_name;
+
+		t_name = mdesc_node_name(hp, t);
+		if (!strcmp(t_name, "cache")) {
+			fill_in_one_cache(c, hp, t);
+			continue;
 		}
 
-#ifdef CONFIG_SMP
-		cpu_set(cpuid, cpu_present_map);
-#endif
+		mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_FWD) {
+			u64 n = mdesc_arc_target(hp, j);
+			const char *n_name;
 
-		c->core_id = 0;
-		c->proc_id = -1;
+			n_name = mdesc_node_name(hp, n);
+			if (!strcmp(n_name, "cache"))
+				fill_in_one_cache(c, hp, n);
+		}
 	}
 
+	c->core_id = 0;
+	c->proc_id = -1;
+
+	return NULL;
+}
+
+void __cpuinit mdesc_fill_in_cpu_data(cpumask_t *mask)
+{
+	struct mdesc_handle *hp;
+
+	mdesc_iterate_over_cpus(fill_in_one_cpu, NULL, mask);
+
 #ifdef CONFIG_SMP
 	sparc64_multi_core = 1;
 #endif
 
+	hp = mdesc_grab();
+
 	set_core_ids(hp);
 	set_proc_ids(hp);
 
-	smp_fill_in_sib_core_maps();
-
 	mdesc_release(hp);
+
+	smp_fill_in_sib_core_maps();
 }
 
 static ssize_t mdesc_read(struct file *file, char __user *buf,
@@ -887,7 +918,6 @@
 {
 	struct mdesc_handle *hp;
 	unsigned long len, real_len, status;
-	cpumask_t mask;
 
 	(void) sun4v_mach_desc(0UL, 0UL, &len);
 
@@ -911,7 +941,4 @@
 	cur_mdesc = hp;
 
 	report_platform_properties();
-
-	cpus_setall(mask);
-	mdesc_fill_in_cpu_data(mask);
 }
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index c8f14c1..9039670 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -6,159 +6,11 @@
 #include <linux/mod_devicetable.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
+#include <linux/irq.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 
-static int node_match(struct device *dev, void *data)
-{
-	struct of_device *op = to_of_device(dev);
-	struct device_node *dp = data;
-
-	return (op->node == dp);
-}
-
-struct of_device *of_find_device_by_node(struct device_node *dp)
-{
-	struct device *dev = bus_find_device(&of_platform_bus_type, NULL,
-					     dp, node_match);
-
-	if (dev)
-		return to_of_device(dev);
-
-	return NULL;
-}
-EXPORT_SYMBOL(of_find_device_by_node);
-
-unsigned int irq_of_parse_and_map(struct device_node *node, int index)
-{
-	struct of_device *op = of_find_device_by_node(node);
-
-	if (!op || index >= op->num_irqs)
-		return 0;
-
-	return op->irqs[index];
-}
-EXPORT_SYMBOL(irq_of_parse_and_map);
-
-/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
- * BUS and propagate to all child of_device objects.
- */
-void of_propagate_archdata(struct of_device *bus)
-{
-	struct dev_archdata *bus_sd = &bus->dev.archdata;
-	struct device_node *bus_dp = bus->node;
-	struct device_node *dp;
-
-	for (dp = bus_dp->child; dp; dp = dp->sibling) {
-		struct of_device *op = of_find_device_by_node(dp);
-
-		op->dev.archdata.iommu = bus_sd->iommu;
-		op->dev.archdata.stc = bus_sd->stc;
-		op->dev.archdata.host_controller = bus_sd->host_controller;
-		op->dev.archdata.numa_node = bus_sd->numa_node;
-
-		if (dp->child)
-			of_propagate_archdata(op);
-	}
-}
-
-struct bus_type of_platform_bus_type;
-EXPORT_SYMBOL(of_platform_bus_type);
-
-static inline u64 of_read_addr(const u32 *cell, int size)
-{
-	u64 r = 0;
-	while (size--)
-		r = (r << 32) | *(cell++);
-	return r;
-}
-
-static void __init get_cells(struct device_node *dp,
-			     int *addrc, int *sizec)
-{
-	if (addrc)
-		*addrc = of_n_addr_cells(dp);
-	if (sizec)
-		*sizec = of_n_size_cells(dp);
-}
-
-/* Max address size we deal with */
-#define OF_MAX_ADDR_CELLS	4
-
-struct of_bus {
-	const char	*name;
-	const char	*addr_prop_name;
-	int		(*match)(struct device_node *parent);
-	void		(*count_cells)(struct device_node *child,
-				       int *addrc, int *sizec);
-	int		(*map)(u32 *addr, const u32 *range,
-			       int na, int ns, int pna);
-	unsigned long	(*get_flags)(const u32 *addr, unsigned long);
-};
-
-/*
- * Default translator (generic bus)
- */
-
-static void of_bus_default_count_cells(struct device_node *dev,
-				       int *addrc, int *sizec)
-{
-	get_cells(dev, addrc, sizec);
-}
-
-/* Make sure the least significant 64-bits are in-range.  Even
- * for 3 or 4 cell values it is a good enough approximation.
- */
-static int of_out_of_range(const u32 *addr, const u32 *base,
-			   const u32 *size, int na, int ns)
-{
-	u64 a = of_read_addr(addr, na);
-	u64 b = of_read_addr(base, na);
-
-	if (a < b)
-		return 1;
-
-	b += of_read_addr(size, ns);
-	if (a >= b)
-		return 1;
-
-	return 0;
-}
-
-static int of_bus_default_map(u32 *addr, const u32 *range,
-			      int na, int ns, int pna)
-{
-	u32 result[OF_MAX_ADDR_CELLS];
-	int i;
-
-	if (ns > 2) {
-		printk("of_device: Cannot handle size cells (%d) > 2.", ns);
-		return -EINVAL;
-	}
-
-	if (of_out_of_range(addr, range, range + na + pna, na, ns))
-		return -EINVAL;
-
-	/* Start with the parent range base.  */
-	memcpy(result, range + na, pna * 4);
-
-	/* Add in the child address offset.  */
-	for (i = 0; i < na; i++)
-		result[pna - 1 - i] +=
-			(addr[na - 1 - i] -
-			 range[na - 1 - i]);
-
-	memcpy(addr, result, pna * 4);
-
-	return 0;
-}
-
-static unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags)
-{
-	if (flags)
-		return flags;
-	return IORESOURCE_MEM;
-}
+#include "of_device_common.h"
 
 /*
  * PCI bus specific translator
@@ -240,47 +92,6 @@
 	return flags;
 }
 
-/*
- * SBUS bus specific translator
- */
-
-static int of_bus_sbus_match(struct device_node *np)
-{
-	struct device_node *dp = np;
-
-	while (dp) {
-		if (!strcmp(dp->name, "sbus") ||
-		    !strcmp(dp->name, "sbi"))
-			return 1;
-
-		/* Have a look at use_1to1_mapping().  We're trying
-		 * to match SBUS if that's the top-level bus and we
-		 * don't have some intervening real bus that provides
-		 * ranges based translations.
-		 */
-		if (of_find_property(dp, "ranges", NULL) != NULL)
-			break;
-
-		dp = dp->parent;
-	}
-
-	return 0;
-}
-
-static void of_bus_sbus_count_cells(struct device_node *child,
-				   int *addrc, int *sizec)
-{
-	if (addrc)
-		*addrc = 2;
-	if (sizec)
-		*sizec = 1;
-}
-
-static int of_bus_sbus_map(u32 *addr, const u32 *range, int na, int ns, int pna)
-{
-	return of_bus_default_map(addr, range, na, ns, pna);
-}
-
 static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags)
 {
 	return IORESOURCE_MEM;
@@ -307,7 +118,7 @@
 		.addr_prop_name = "reg",
 		.match = of_bus_sbus_match,
 		.count_cells = of_bus_sbus_count_cells,
-		.map = of_bus_sbus_map,
+		.map = of_bus_default_map,
 		.get_flags = of_bus_sbus_get_flags,
 	},
 	/* Default */
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 5ac287a..881947e 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -10,6 +10,8 @@
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 
+#include "of_device_common.h"
+
 void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name)
 {
 	unsigned long ret = res->start + offset;
@@ -35,156 +37,6 @@
 }
 EXPORT_SYMBOL(of_iounmap);
 
-static int node_match(struct device *dev, void *data)
-{
-	struct of_device *op = to_of_device(dev);
-	struct device_node *dp = data;
-
-	return (op->node == dp);
-}
-
-struct of_device *of_find_device_by_node(struct device_node *dp)
-{
-	struct device *dev = bus_find_device(&of_platform_bus_type, NULL,
-					     dp, node_match);
-
-	if (dev)
-		return to_of_device(dev);
-
-	return NULL;
-}
-EXPORT_SYMBOL(of_find_device_by_node);
-
-unsigned int irq_of_parse_and_map(struct device_node *node, int index)
-{
-	struct of_device *op = of_find_device_by_node(node);
-
-	if (!op || index >= op->num_irqs)
-		return 0;
-
-	return op->irqs[index];
-}
-EXPORT_SYMBOL(irq_of_parse_and_map);
-
-/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
- * BUS and propagate to all child of_device objects.
- */
-void of_propagate_archdata(struct of_device *bus)
-{
-	struct dev_archdata *bus_sd = &bus->dev.archdata;
-	struct device_node *bus_dp = bus->node;
-	struct device_node *dp;
-
-	for (dp = bus_dp->child; dp; dp = dp->sibling) {
-		struct of_device *op = of_find_device_by_node(dp);
-
-		op->dev.archdata.iommu = bus_sd->iommu;
-		op->dev.archdata.stc = bus_sd->stc;
-		op->dev.archdata.host_controller = bus_sd->host_controller;
-		op->dev.archdata.numa_node = bus_sd->numa_node;
-
-		if (dp->child)
-			of_propagate_archdata(op);
-	}
-}
-
-struct bus_type of_platform_bus_type;
-EXPORT_SYMBOL(of_platform_bus_type);
-
-static inline u64 of_read_addr(const u32 *cell, int size)
-{
-	u64 r = 0;
-	while (size--)
-		r = (r << 32) | *(cell++);
-	return r;
-}
-
-static void get_cells(struct device_node *dp, int *addrc, int *sizec)
-{
-	if (addrc)
-		*addrc = of_n_addr_cells(dp);
-	if (sizec)
-		*sizec = of_n_size_cells(dp);
-}
-
-/* Max address size we deal with */
-#define OF_MAX_ADDR_CELLS	4
-
-struct of_bus {
-	const char	*name;
-	const char	*addr_prop_name;
-	int		(*match)(struct device_node *parent);
-	void		(*count_cells)(struct device_node *child,
-				       int *addrc, int *sizec);
-	int		(*map)(u32 *addr, const u32 *range,
-			       int na, int ns, int pna);
-	unsigned long	(*get_flags)(const u32 *addr, unsigned long);
-};
-
-/*
- * Default translator (generic bus)
- */
-
-static void of_bus_default_count_cells(struct device_node *dev,
-				       int *addrc, int *sizec)
-{
-	get_cells(dev, addrc, sizec);
-}
-
-/* Make sure the least significant 64-bits are in-range.  Even
- * for 3 or 4 cell values it is a good enough approximation.
- */
-static int of_out_of_range(const u32 *addr, const u32 *base,
-			   const u32 *size, int na, int ns)
-{
-	u64 a = of_read_addr(addr, na);
-	u64 b = of_read_addr(base, na);
-
-	if (a < b)
-		return 1;
-
-	b += of_read_addr(size, ns);
-	if (a >= b)
-		return 1;
-
-	return 0;
-}
-
-static int of_bus_default_map(u32 *addr, const u32 *range,
-			      int na, int ns, int pna)
-{
-	u32 result[OF_MAX_ADDR_CELLS];
-	int i;
-
-	if (ns > 2) {
-		printk("of_device: Cannot handle size cells (%d) > 2.", ns);
-		return -EINVAL;
-	}
-
-	if (of_out_of_range(addr, range, range + na + pna, na, ns))
-		return -EINVAL;
-
-	/* Start with the parent range base.  */
-	memcpy(result, range + na, pna * 4);
-
-	/* Add in the child address offset.  */
-	for (i = 0; i < na; i++)
-		result[pna - 1 - i] +=
-			(addr[na - 1 - i] -
-			 range[na - 1 - i]);
-
-	memcpy(addr, result, pna * 4);
-
-	return 0;
-}
-
-static unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags)
-{
-	if (flags)
-		return flags;
-	return IORESOURCE_MEM;
-}
-
 /*
  * PCI bus specific translator
  */
@@ -295,42 +147,6 @@
 }
 
 /*
- * SBUS bus specific translator
- */
-
-static int of_bus_sbus_match(struct device_node *np)
-{
-	struct device_node *dp = np;
-
-	while (dp) {
-		if (!strcmp(dp->name, "sbus") ||
-		    !strcmp(dp->name, "sbi"))
-			return 1;
-
-		/* Have a look at use_1to1_mapping().  We're trying
-		 * to match SBUS if that's the top-level bus and we
-		 * don't have some intervening real bus that provides
-		 * ranges based translations.
-		 */
-		if (of_find_property(dp, "ranges", NULL) != NULL)
-			break;
-
-		dp = dp->parent;
-	}
-
-	return 0;
-}
-
-static void of_bus_sbus_count_cells(struct device_node *child,
-				   int *addrc, int *sizec)
-{
-	if (addrc)
-		*addrc = 2;
-	if (sizec)
-		*sizec = 1;
-}
-
-/*
  * FHC/Central bus specific translator.
  *
  * This is just needed to hard-code the address and size cell
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c
new file mode 100644
index 0000000..cb8eb79
--- /dev/null
+++ b/arch/sparc/kernel/of_device_common.c
@@ -0,0 +1,174 @@
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/irq.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#include "of_device_common.h"
+
+static int node_match(struct device *dev, void *data)
+{
+	struct of_device *op = to_of_device(dev);
+	struct device_node *dp = data;
+
+	return (op->node == dp);
+}
+
+struct of_device *of_find_device_by_node(struct device_node *dp)
+{
+	struct device *dev = bus_find_device(&of_platform_bus_type, NULL,
+					     dp, node_match);
+
+	if (dev)
+		return to_of_device(dev);
+
+	return NULL;
+}
+EXPORT_SYMBOL(of_find_device_by_node);
+
+unsigned int irq_of_parse_and_map(struct device_node *node, int index)
+{
+	struct of_device *op = of_find_device_by_node(node);
+
+	if (!op || index >= op->num_irqs)
+		return 0;
+
+	return op->irqs[index];
+}
+EXPORT_SYMBOL(irq_of_parse_and_map);
+
+/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
+ * BUS and propagate to all child of_device objects.
+ */
+void of_propagate_archdata(struct of_device *bus)
+{
+	struct dev_archdata *bus_sd = &bus->dev.archdata;
+	struct device_node *bus_dp = bus->node;
+	struct device_node *dp;
+
+	for (dp = bus_dp->child; dp; dp = dp->sibling) {
+		struct of_device *op = of_find_device_by_node(dp);
+
+		op->dev.archdata.iommu = bus_sd->iommu;
+		op->dev.archdata.stc = bus_sd->stc;
+		op->dev.archdata.host_controller = bus_sd->host_controller;
+		op->dev.archdata.numa_node = bus_sd->numa_node;
+
+		if (dp->child)
+			of_propagate_archdata(op);
+	}
+}
+
+struct bus_type of_platform_bus_type;
+EXPORT_SYMBOL(of_platform_bus_type);
+
+static void get_cells(struct device_node *dp, int *addrc, int *sizec)
+{
+	if (addrc)
+		*addrc = of_n_addr_cells(dp);
+	if (sizec)
+		*sizec = of_n_size_cells(dp);
+}
+
+/*
+ * Default translator (generic bus)
+ */
+
+void of_bus_default_count_cells(struct device_node *dev, int *addrc, int *sizec)
+{
+	get_cells(dev, addrc, sizec);
+}
+
+/* Make sure the least significant 64-bits are in-range.  Even
+ * for 3 or 4 cell values it is a good enough approximation.
+ */
+int of_out_of_range(const u32 *addr, const u32 *base,
+		    const u32 *size, int na, int ns)
+{
+	u64 a = of_read_addr(addr, na);
+	u64 b = of_read_addr(base, na);
+
+	if (a < b)
+		return 1;
+
+	b += of_read_addr(size, ns);
+	if (a >= b)
+		return 1;
+
+	return 0;
+}
+
+int of_bus_default_map(u32 *addr, const u32 *range, int na, int ns, int pna)
+{
+	u32 result[OF_MAX_ADDR_CELLS];
+	int i;
+
+	if (ns > 2) {
+		printk("of_device: Cannot handle size cells (%d) > 2.", ns);
+		return -EINVAL;
+	}
+
+	if (of_out_of_range(addr, range, range + na + pna, na, ns))
+		return -EINVAL;
+
+	/* Start with the parent range base.  */
+	memcpy(result, range + na, pna * 4);
+
+	/* Add in the child address offset.  */
+	for (i = 0; i < na; i++)
+		result[pna - 1 - i] +=
+			(addr[na - 1 - i] -
+			 range[na - 1 - i]);
+
+	memcpy(addr, result, pna * 4);
+
+	return 0;
+}
+
+unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags)
+{
+	if (flags)
+		return flags;
+	return IORESOURCE_MEM;
+}
+
+/*
+ * SBUS bus specific translator
+ */
+
+int of_bus_sbus_match(struct device_node *np)
+{
+	struct device_node *dp = np;
+
+	while (dp) {
+		if (!strcmp(dp->name, "sbus") ||
+		    !strcmp(dp->name, "sbi"))
+			return 1;
+
+		/* Have a look at use_1to1_mapping().  We're trying
+		 * to match SBUS if that's the top-level bus and we
+		 * don't have some intervening real bus that provides
+		 * ranges based translations.
+		 */
+		if (of_find_property(dp, "ranges", NULL) != NULL)
+			break;
+
+		dp = dp->parent;
+	}
+
+	return 0;
+}
+
+void of_bus_sbus_count_cells(struct device_node *child, int *addrc, int *sizec)
+{
+	if (addrc)
+		*addrc = 2;
+	if (sizec)
+		*sizec = 1;
+}
diff --git a/arch/sparc/kernel/of_device_common.h b/arch/sparc/kernel/of_device_common.h
new file mode 100644
index 0000000..cdfd239
--- /dev/null
+++ b/arch/sparc/kernel/of_device_common.h
@@ -0,0 +1,36 @@
+#ifndef _OF_DEVICE_COMMON_H
+#define _OF_DEVICE_COMMON_H
+
+static inline u64 of_read_addr(const u32 *cell, int size)
+{
+	u64 r = 0;
+	while (size--)
+		r = (r << 32) | *(cell++);
+	return r;
+}
+
+void of_bus_default_count_cells(struct device_node *dev, int *addrc,
+				int *sizec);
+int of_out_of_range(const u32 *addr, const u32 *base,
+		    const u32 *size, int na, int ns);
+int of_bus_default_map(u32 *addr, const u32 *range, int na, int ns, int pna);
+unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags);
+
+int of_bus_sbus_match(struct device_node *np);
+void of_bus_sbus_count_cells(struct device_node *child, int *addrc, int *sizec);
+
+/* Max address size we deal with */
+#define OF_MAX_ADDR_CELLS	4
+
+struct of_bus {
+	const char	*name;
+	const char	*addr_prop_name;
+	int		(*match)(struct device_node *parent);
+	void		(*count_cells)(struct device_node *child,
+				       int *addrc, int *sizec);
+	int		(*map)(u32 *addr, const u32 *range,
+			       int na, int ns, int pna);
+	unsigned long	(*get_flags)(const u32 *addr, unsigned long);
+};
+
+#endif /* _OF_DEVICE_COMMON_H */
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 5db5ebe..2485eaa 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -230,8 +230,9 @@
 		free_pages((unsigned long)cpu, order);
 }
 
-static dma_addr_t dma_4v_map_single(struct device *dev, void *ptr, size_t sz,
-				    enum dma_data_direction direction)
+static dma_addr_t dma_4v_map_page(struct device *dev, struct page *page,
+				  unsigned long offset, size_t sz,
+				  enum dma_data_direction direction)
 {
 	struct iommu *iommu;
 	unsigned long flags, npages, oaddr;
@@ -245,7 +246,7 @@
 	if (unlikely(direction == DMA_NONE))
 		goto bad;
 
-	oaddr = (unsigned long)ptr;
+	oaddr = (unsigned long)(page_address(page) + offset);
 	npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK);
 	npages >>= IO_PAGE_SHIFT;
 
@@ -294,8 +295,8 @@
 	return DMA_ERROR_CODE;
 }
 
-static void dma_4v_unmap_single(struct device *dev, dma_addr_t bus_addr,
-				size_t sz, enum dma_data_direction direction)
+static void dma_4v_unmap_page(struct device *dev, dma_addr_t bus_addr,
+			      size_t sz, enum dma_data_direction direction)
 {
 	struct pci_pbm_info *pbm;
 	struct iommu *iommu;
@@ -537,8 +538,8 @@
 static const struct dma_ops sun4v_dma_ops = {
 	.alloc_coherent			= dma_4v_alloc_coherent,
 	.free_coherent			= dma_4v_free_coherent,
-	.map_single			= dma_4v_map_single,
-	.unmap_single			= dma_4v_unmap_single,
+	.map_page			= dma_4v_map_page,
+	.unmap_page			= dma_4v_unmap_page,
 	.map_sg				= dma_4v_map_sg,
 	.unmap_sg			= dma_4v_unmap_sg,
 	.sync_single_for_cpu		= dma_4v_sync_single_for_cpu,
diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h
index bb0f0fd..453397f 100644
--- a/arch/sparc/kernel/prom.h
+++ b/arch/sparc/kernel/prom.h
@@ -22,7 +22,6 @@
 
 extern char *build_path_component(struct device_node *dp);
 extern void of_console_init(void);
-extern void of_fill_in_cpu_data(void);
 
 extern unsigned int prom_early_allocated;
 
diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index ca55c70..fb06ac2 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -374,75 +374,26 @@
 	return (tlb_type == spitfire ? "upa-portid" : "portid");
 }
 
-struct device_node *of_find_node_by_cpuid(int cpuid)
-{
-	struct device_node *dp;
-	const char *mid_prop = get_mid_prop();
-
-	for_each_node_by_type(dp, "cpu") {
-		int id = of_getintprop_default(dp, mid_prop, -1);
-		const char *this_mid_prop = mid_prop;
-
-		if (id < 0) {
-			this_mid_prop = "cpuid";
-			id = of_getintprop_default(dp, this_mid_prop, -1);
-		}
-
-		if (id < 0) {
-			prom_printf("OF: Serious problem, cpu lacks "
-				    "%s property", this_mid_prop);
-			prom_halt();
-		}
-		if (cpuid == id)
-			return dp;
-	}
-	return NULL;
-}
-
-void __init of_fill_in_cpu_data(void)
+static void *of_iterate_over_cpus(void *(*func)(struct device_node *, int, int), int arg)
 {
 	struct device_node *dp;
 	const char *mid_prop;
 
-	if (tlb_type == hypervisor)
-		return;
-
 	mid_prop = get_mid_prop();
-	ncpus_probed = 0;
 	for_each_node_by_type(dp, "cpu") {
 		int cpuid = of_getintprop_default(dp, mid_prop, -1);
 		const char *this_mid_prop = mid_prop;
-		struct device_node *portid_parent;
-		int portid = -1;
+		void *ret;
 
-		portid_parent = NULL;
 		if (cpuid < 0) {
 			this_mid_prop = "cpuid";
 			cpuid = of_getintprop_default(dp, this_mid_prop, -1);
-			if (cpuid >= 0) {
-				int limit = 2;
-
-				portid_parent = dp;
-				while (limit--) {
-					portid_parent = portid_parent->parent;
-					if (!portid_parent)
-						break;
-					portid = of_getintprop_default(portid_parent,
-								       "portid", -1);
-					if (portid >= 0)
-						break;
-				}
-			}
 		}
-
 		if (cpuid < 0) {
 			prom_printf("OF: Serious problem, cpu lacks "
 				    "%s property", this_mid_prop);
 			prom_halt();
 		}
-
-		ncpus_probed++;
-
 #ifdef CONFIG_SMP
 		if (cpuid >= NR_CPUS) {
 			printk(KERN_WARNING "Ignoring CPU %d which is "
@@ -450,79 +401,142 @@
 			       cpuid, NR_CPUS);
 			continue;
 		}
-#else
-		/* On uniprocessor we only want the values for the
-		 * real physical cpu the kernel booted onto, however
-		 * cpu_data() only has one entry at index 0.
-		 */
-		if (cpuid != real_hard_smp_processor_id())
-			continue;
-		cpuid = 0;
 #endif
+		ret = func(dp, cpuid, arg);
+		if (ret)
+			return ret;
+	}
+	return NULL;
+}
 
-		cpu_data(cpuid).clock_tick =
-			of_getintprop_default(dp, "clock-frequency", 0);
+static void *check_cpu_node(struct device_node *dp, int cpuid, int id)
+{
+	if (id == cpuid)
+		return dp;
+	return NULL;
+}
 
-		if (portid_parent) {
-			cpu_data(cpuid).dcache_size =
-				of_getintprop_default(dp, "l1-dcache-size",
-						      16 * 1024);
-			cpu_data(cpuid).dcache_line_size =
-				of_getintprop_default(dp, "l1-dcache-line-size",
-						      32);
-			cpu_data(cpuid).icache_size =
-				of_getintprop_default(dp, "l1-icache-size",
-						      8 * 1024);
-			cpu_data(cpuid).icache_line_size =
-				of_getintprop_default(dp, "l1-icache-line-size",
-						      32);
-			cpu_data(cpuid).ecache_size =
-				of_getintprop_default(dp, "l2-cache-size", 0);
-			cpu_data(cpuid).ecache_line_size =
-				of_getintprop_default(dp, "l2-cache-line-size", 0);
-			if (!cpu_data(cpuid).ecache_size ||
-			    !cpu_data(cpuid).ecache_line_size) {
-				cpu_data(cpuid).ecache_size =
-					of_getintprop_default(portid_parent,
-							      "l2-cache-size",
-							      (4 * 1024 * 1024));
-				cpu_data(cpuid).ecache_line_size =
-					of_getintprop_default(portid_parent,
-							      "l2-cache-line-size", 64);
-			}
+struct device_node *of_find_node_by_cpuid(int cpuid)
+{
+	return of_iterate_over_cpus(check_cpu_node, cpuid);
+}
 
-			cpu_data(cpuid).core_id = portid + 1;
-			cpu_data(cpuid).proc_id = portid;
+static void *record_one_cpu(struct device_node *dp, int cpuid, int arg)
+{
+	ncpus_probed++;
 #ifdef CONFIG_SMP
-			sparc64_multi_core = 1;
+	set_cpu_present(cpuid, true);
+	set_cpu_possible(cpuid, true);
 #endif
-		} else {
-			cpu_data(cpuid).dcache_size =
-				of_getintprop_default(dp, "dcache-size", 16 * 1024);
-			cpu_data(cpuid).dcache_line_size =
-				of_getintprop_default(dp, "dcache-line-size", 32);
+	return NULL;
+}
 
-			cpu_data(cpuid).icache_size =
-				of_getintprop_default(dp, "icache-size", 16 * 1024);
-			cpu_data(cpuid).icache_line_size =
-				of_getintprop_default(dp, "icache-line-size", 32);
+void __init of_populate_present_mask(void)
+{
+	if (tlb_type == hypervisor)
+		return;
 
+	ncpus_probed = 0;
+	of_iterate_over_cpus(record_one_cpu, 0);
+}
+
+static void *fill_in_one_cpu(struct device_node *dp, int cpuid, int arg)
+{
+	struct device_node *portid_parent = NULL;
+	int portid = -1;
+
+	if (of_find_property(dp, "cpuid", NULL)) {
+		int limit = 2;
+
+		portid_parent = dp;
+		while (limit--) {
+			portid_parent = portid_parent->parent;
+			if (!portid_parent)
+				break;
+			portid = of_getintprop_default(portid_parent,
+						       "portid", -1);
+			if (portid >= 0)
+				break;
+		}
+	}
+
+#ifndef CONFIG_SMP
+	/* On uniprocessor we only want the values for the
+	 * real physical cpu the kernel booted onto, however
+	 * cpu_data() only has one entry at index 0.
+	 */
+	if (cpuid != real_hard_smp_processor_id())
+		return NULL;
+	cpuid = 0;
+#endif
+
+	cpu_data(cpuid).clock_tick =
+		of_getintprop_default(dp, "clock-frequency", 0);
+
+	if (portid_parent) {
+		cpu_data(cpuid).dcache_size =
+			of_getintprop_default(dp, "l1-dcache-size",
+					      16 * 1024);
+		cpu_data(cpuid).dcache_line_size =
+			of_getintprop_default(dp, "l1-dcache-line-size",
+					      32);
+		cpu_data(cpuid).icache_size =
+			of_getintprop_default(dp, "l1-icache-size",
+					      8 * 1024);
+		cpu_data(cpuid).icache_line_size =
+			of_getintprop_default(dp, "l1-icache-line-size",
+					      32);
+		cpu_data(cpuid).ecache_size =
+			of_getintprop_default(dp, "l2-cache-size", 0);
+		cpu_data(cpuid).ecache_line_size =
+			of_getintprop_default(dp, "l2-cache-line-size", 0);
+		if (!cpu_data(cpuid).ecache_size ||
+		    !cpu_data(cpuid).ecache_line_size) {
 			cpu_data(cpuid).ecache_size =
-				of_getintprop_default(dp, "ecache-size",
+				of_getintprop_default(portid_parent,
+						      "l2-cache-size",
 						      (4 * 1024 * 1024));
 			cpu_data(cpuid).ecache_line_size =
-				of_getintprop_default(dp, "ecache-line-size", 64);
-
-			cpu_data(cpuid).core_id = 0;
-			cpu_data(cpuid).proc_id = -1;
+				of_getintprop_default(portid_parent,
+						      "l2-cache-line-size", 64);
 		}
 
+		cpu_data(cpuid).core_id = portid + 1;
+		cpu_data(cpuid).proc_id = portid;
 #ifdef CONFIG_SMP
-		set_cpu_present(cpuid, true);
-		set_cpu_possible(cpuid, true);
+		sparc64_multi_core = 1;
 #endif
+	} else {
+		cpu_data(cpuid).dcache_size =
+			of_getintprop_default(dp, "dcache-size", 16 * 1024);
+		cpu_data(cpuid).dcache_line_size =
+			of_getintprop_default(dp, "dcache-line-size", 32);
+
+		cpu_data(cpuid).icache_size =
+			of_getintprop_default(dp, "icache-size", 16 * 1024);
+		cpu_data(cpuid).icache_line_size =
+			of_getintprop_default(dp, "icache-line-size", 32);
+
+		cpu_data(cpuid).ecache_size =
+			of_getintprop_default(dp, "ecache-size",
+					      (4 * 1024 * 1024));
+		cpu_data(cpuid).ecache_line_size =
+			of_getintprop_default(dp, "ecache-line-size", 64);
+
+		cpu_data(cpuid).core_id = 0;
+		cpu_data(cpuid).proc_id = -1;
 	}
 
+	return NULL;
+}
+
+void __init of_fill_in_cpu_data(void)
+{
+	if (tlb_type == hypervisor)
+		return;
+
+	of_iterate_over_cpus(fill_in_one_cpu, 0);
+
 	smp_fill_in_sib_core_maps();
 }
 
diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c
index ff7b591..0fb5789 100644
--- a/arch/sparc/kernel/prom_common.c
+++ b/arch/sparc/kernel/prom_common.c
@@ -313,6 +313,4 @@
 
 	printk("PROM: Built device tree with %u bytes of memory.\n",
 	       prom_early_allocated);
-
-	of_fill_in_cpu_data();
 }
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index f7642e5a..fa44eaf 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -20,7 +20,8 @@
 #include <linux/cache.h>
 #include <linux/jiffies.h>
 #include <linux/profile.h>
-#include <linux/lmb.h>
+#include <linux/bootmem.h>
+#include <linux/vmalloc.h>
 #include <linux/cpu.h>
 
 #include <asm/head.h>
@@ -47,6 +48,8 @@
 #include <asm/ldc.h>
 #include <asm/hypervisor.h>
 
+#include "cpumap.h"
+
 int sparc64_multi_core __read_mostly;
 
 DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE;
@@ -278,7 +281,7 @@
 	return kern_base + (val - KERNBASE);
 }
 
-static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg)
+static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg, void **descrp)
 {
 	extern unsigned long sparc64_ttable_tl0;
 	extern unsigned long kern_locked_tte_data;
@@ -298,12 +301,12 @@
 		       "hvtramp_descr.\n");
 		return;
 	}
+	*descrp = hdesc;
 
 	hdesc->cpu = cpu;
 	hdesc->num_mappings = num_kernel_image_mappings;
 
 	tb = &trap_block[cpu];
-	tb->hdesc = hdesc;
 
 	hdesc->fault_info_va = (unsigned long) &tb->fault_info;
 	hdesc->fault_info_pa = kimage_addr_to_ra(&tb->fault_info);
@@ -341,12 +344,12 @@
 
 static int __cpuinit smp_boot_one_cpu(unsigned int cpu)
 {
-	struct trap_per_cpu *tb = &trap_block[cpu];
 	unsigned long entry =
 		(unsigned long)(&sparc64_cpu_startup);
 	unsigned long cookie =
 		(unsigned long)(&cpu_new_thread);
 	struct task_struct *p;
+	void *descr = NULL;
 	int timeout, ret;
 
 	p = fork_idle(cpu);
@@ -359,7 +362,8 @@
 #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)
 		if (ldom_domaining_enabled)
 			ldom_startcpu_cpuid(cpu,
-					    (unsigned long) cpu_new_thread);
+					    (unsigned long) cpu_new_thread,
+					    &descr);
 		else
 #endif
 			prom_startcpu_cpuid(cpu, entry, cookie);
@@ -383,10 +387,7 @@
 	}
 	cpu_new_thread = NULL;
 
-	if (tb->hdesc) {
-		kfree(tb->hdesc);
-		tb->hdesc = NULL;
-	}
+	kfree(descr);
 
 	return ret;
 }
@@ -1315,6 +1316,8 @@
 	cpu_clear(cpu, cpu_online_map);
 	ipi_call_unlock();
 
+	cpu_map_rebuild();
+
 	return 0;
 }
 
@@ -1373,36 +1376,171 @@
 {
 }
 
-unsigned long __per_cpu_base __read_mostly;
-unsigned long __per_cpu_shift __read_mostly;
-
-EXPORT_SYMBOL(__per_cpu_base);
-EXPORT_SYMBOL(__per_cpu_shift);
-
-void __init real_setup_per_cpu_areas(void)
+/**
+ * pcpu_alloc_bootmem - NUMA friendly alloc_bootmem wrapper for percpu
+ * @cpu: cpu to allocate for
+ * @size: size allocation in bytes
+ * @align: alignment
+ *
+ * Allocate @size bytes aligned at @align for cpu @cpu.  This wrapper
+ * does the right thing for NUMA regardless of the current
+ * configuration.
+ *
+ * RETURNS:
+ * Pointer to the allocated area on success, NULL on failure.
+ */
+static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
+					unsigned long align)
 {
-	unsigned long paddr, goal, size, i;
-	char *ptr;
+	const unsigned long goal = __pa(MAX_DMA_ADDRESS);
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+	int node = cpu_to_node(cpu);
+	void *ptr;
 
-	/* Copy section for each CPU (we discard the original) */
-	goal = PERCPU_ENOUGH_ROOM;
+	if (!node_online(node) || !NODE_DATA(node)) {
+		ptr = __alloc_bootmem(size, align, goal);
+		pr_info("cpu %d has no node %d or node-local memory\n",
+			cpu, node);
+		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
+			 cpu, size, __pa(ptr));
+	} else {
+		ptr = __alloc_bootmem_node(NODE_DATA(node),
+					   size, align, goal);
+		pr_debug("per cpu data for cpu%d %lu bytes on node%d at "
+			 "%016lx\n", cpu, size, node, __pa(ptr));
+	}
+	return ptr;
+#else
+	return __alloc_bootmem(size, align, goal);
+#endif
+}
 
-	__per_cpu_shift = PAGE_SHIFT;
-	for (size = PAGE_SIZE; size < goal; size <<= 1UL)
-		__per_cpu_shift++;
+static size_t pcpur_size __initdata;
+static void **pcpur_ptrs __initdata;
 
-	paddr = lmb_alloc(size * NR_CPUS, PAGE_SIZE);
-	if (!paddr) {
-		prom_printf("Cannot allocate per-cpu memory.\n");
-		prom_halt();
+static struct page * __init pcpur_get_page(unsigned int cpu, int pageno)
+{
+	size_t off = (size_t)pageno << PAGE_SHIFT;
+
+	if (off >= pcpur_size)
+		return NULL;
+
+	return virt_to_page(pcpur_ptrs[cpu] + off);
+}
+
+#define PCPU_CHUNK_SIZE (4UL * 1024UL * 1024UL)
+
+static void __init pcpu_map_range(unsigned long start, unsigned long end,
+				  struct page *page)
+{
+	unsigned long pfn = page_to_pfn(page);
+	unsigned long pte_base;
+
+	BUG_ON((pfn<<PAGE_SHIFT)&(PCPU_CHUNK_SIZE - 1UL));
+
+	pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4U |
+		    _PAGE_CP_4U | _PAGE_CV_4U |
+		    _PAGE_P_4U | _PAGE_W_4U);
+	if (tlb_type == hypervisor)
+		pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4V |
+			    _PAGE_CP_4V | _PAGE_CV_4V |
+			    _PAGE_P_4V | _PAGE_W_4V);
+
+	while (start < end) {
+		pgd_t *pgd = pgd_offset_k(start);
+		unsigned long this_end;
+		pud_t *pud;
+		pmd_t *pmd;
+		pte_t *pte;
+
+		pud = pud_offset(pgd, start);
+		if (pud_none(*pud)) {
+			pmd_t *new;
+
+			new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+			pud_populate(&init_mm, pud, new);
+		}
+
+		pmd = pmd_offset(pud, start);
+		if (!pmd_present(*pmd)) {
+			pte_t *new;
+
+			new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+			pmd_populate_kernel(&init_mm, pmd, new);
+		}
+
+		pte = pte_offset_kernel(pmd, start);
+		this_end = (start + PMD_SIZE) & PMD_MASK;
+		if (this_end > end)
+			this_end = end;
+
+		while (start < this_end) {
+			unsigned long paddr = pfn << PAGE_SHIFT;
+
+			pte_val(*pte) = (paddr | pte_base);
+
+			start += PAGE_SIZE;
+			pte++;
+			pfn++;
+		}
+	}
+}
+
+void __init setup_per_cpu_areas(void)
+{
+	size_t dyn_size, static_size = __per_cpu_end - __per_cpu_start;
+	static struct vm_struct vm;
+	unsigned long delta, cpu;
+	size_t pcpu_unit_size;
+	size_t ptrs_size;
+
+	pcpur_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE +
+			       PERCPU_DYNAMIC_RESERVE);
+	dyn_size = pcpur_size - static_size - PERCPU_MODULE_RESERVE;
+
+
+	ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpur_ptrs[0]));
+	pcpur_ptrs = alloc_bootmem(ptrs_size);
+
+	for_each_possible_cpu(cpu) {
+		pcpur_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PCPU_CHUNK_SIZE,
+						     PCPU_CHUNK_SIZE);
+
+		free_bootmem(__pa(pcpur_ptrs[cpu] + pcpur_size),
+			     PCPU_CHUNK_SIZE - pcpur_size);
+
+		memcpy(pcpur_ptrs[cpu], __per_cpu_load, static_size);
 	}
 
-	ptr = __va(paddr);
-	__per_cpu_base = ptr - __per_cpu_start;
+	/* allocate address and map */
+	vm.flags = VM_ALLOC;
+	vm.size = num_possible_cpus() * PCPU_CHUNK_SIZE;
+	vm_area_register_early(&vm, PCPU_CHUNK_SIZE);
 
-	for (i = 0; i < NR_CPUS; i++, ptr += size)
-		memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+	for_each_possible_cpu(cpu) {
+		unsigned long start = (unsigned long) vm.addr;
+		unsigned long end;
+
+		start += cpu * PCPU_CHUNK_SIZE;
+		end = start + PCPU_CHUNK_SIZE;
+		pcpu_map_range(start, end, virt_to_page(pcpur_ptrs[cpu]));
+	}
+
+	pcpu_unit_size = pcpu_setup_first_chunk(pcpur_get_page, static_size,
+						PERCPU_MODULE_RESERVE, dyn_size,
+						PCPU_CHUNK_SIZE, vm.addr, NULL);
+
+	free_bootmem(__pa(pcpur_ptrs), ptrs_size);
+
+	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
+	for_each_possible_cpu(cpu) {
+		__per_cpu_offset(cpu) = delta + cpu * pcpu_unit_size;
+	}
 
 	/* Setup %g5 for the boot cpu.  */
 	__local_per_cpu_offset = __per_cpu_offset(smp_processor_id());
+
+	of_fill_in_cpu_data();
+	if (tlb_type == hypervisor)
+		mdesc_fill_in_cpu_data(cpu_all_mask);
 }
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 00ec3b1..6909016 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -81,4 +81,6 @@
 /*305*/	.long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 /*310*/	.long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 /*315*/	.long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv, sys_pwritev
+/*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
+/*325*/	.long sys_pwritev, sys_rt_tgsigqueueinfo
+
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 82b5bf8..6b3ee88 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -82,7 +82,8 @@
 	.word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait
 /*310*/	.word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
 	.word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv, compat_sys_pwritev
+/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv
+	.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo
 
 #endif /* CONFIG_COMPAT */
 
@@ -156,4 +157,5 @@
 	.word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 /*310*/	.word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 	.word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv, sys_pwritev
+/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
+	.word sys_pwritev, sys_rt_tgsigqueueinfo
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index d809c4e..10f7bb9 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2509,6 +2509,7 @@
 }
 
 struct trap_per_cpu trap_block[NR_CPUS];
+EXPORT_SYMBOL(trap_block);
 
 /* This can get invoked before sched_init() so play it super safe
  * and use hard_smp_processor_id().
@@ -2530,84 +2531,97 @@
 void __init trap_init(void)
 {
 	/* Compile time sanity check. */
-	if (TI_TASK != offsetof(struct thread_info, task) ||
-	    TI_FLAGS != offsetof(struct thread_info, flags) ||
-	    TI_CPU != offsetof(struct thread_info, cpu) ||
-	    TI_FPSAVED != offsetof(struct thread_info, fpsaved) ||
-	    TI_KSP != offsetof(struct thread_info, ksp) ||
-	    TI_FAULT_ADDR != offsetof(struct thread_info, fault_address) ||
-	    TI_KREGS != offsetof(struct thread_info, kregs) ||
-	    TI_UTRAPS != offsetof(struct thread_info, utraps) ||
-	    TI_EXEC_DOMAIN != offsetof(struct thread_info, exec_domain) ||
-	    TI_REG_WINDOW != offsetof(struct thread_info, reg_window) ||
-	    TI_RWIN_SPTRS != offsetof(struct thread_info, rwbuf_stkptrs) ||
-	    TI_GSR != offsetof(struct thread_info, gsr) ||
-	    TI_XFSR != offsetof(struct thread_info, xfsr) ||
-	    TI_USER_CNTD0 != offsetof(struct thread_info, user_cntd0) ||
-	    TI_USER_CNTD1 != offsetof(struct thread_info, user_cntd1) ||
-	    TI_KERN_CNTD0 != offsetof(struct thread_info, kernel_cntd0) ||
-	    TI_KERN_CNTD1 != offsetof(struct thread_info, kernel_cntd1) ||
-	    TI_PCR != offsetof(struct thread_info, pcr_reg) ||
-	    TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) ||
-	    TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
-	    TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) ||
-	    TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) ||
-	    TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) ||
-	    TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) ||
-	    TI_FPREGS != offsetof(struct thread_info, fpregs) ||
-	    (TI_FPREGS & (64 - 1)))
-		thread_info_offsets_are_bolixed_dave();
+	BUILD_BUG_ON(TI_TASK != offsetof(struct thread_info, task) ||
+		     TI_FLAGS != offsetof(struct thread_info, flags) ||
+		     TI_CPU != offsetof(struct thread_info, cpu) ||
+		     TI_FPSAVED != offsetof(struct thread_info, fpsaved) ||
+		     TI_KSP != offsetof(struct thread_info, ksp) ||
+		     TI_FAULT_ADDR != offsetof(struct thread_info,
+					       fault_address) ||
+		     TI_KREGS != offsetof(struct thread_info, kregs) ||
+		     TI_UTRAPS != offsetof(struct thread_info, utraps) ||
+		     TI_EXEC_DOMAIN != offsetof(struct thread_info,
+						exec_domain) ||
+		     TI_REG_WINDOW != offsetof(struct thread_info,
+					       reg_window) ||
+		     TI_RWIN_SPTRS != offsetof(struct thread_info,
+					       rwbuf_stkptrs) ||
+		     TI_GSR != offsetof(struct thread_info, gsr) ||
+		     TI_XFSR != offsetof(struct thread_info, xfsr) ||
+		     TI_USER_CNTD0 != offsetof(struct thread_info,
+					       user_cntd0) ||
+		     TI_USER_CNTD1 != offsetof(struct thread_info,
+					       user_cntd1) ||
+		     TI_KERN_CNTD0 != offsetof(struct thread_info,
+					       kernel_cntd0) ||
+		     TI_KERN_CNTD1 != offsetof(struct thread_info,
+					       kernel_cntd1) ||
+		     TI_PCR != offsetof(struct thread_info, pcr_reg) ||
+		     TI_PRE_COUNT != offsetof(struct thread_info,
+					      preempt_count) ||
+		     TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
+		     TI_SYS_NOERROR != offsetof(struct thread_info,
+						syscall_noerror) ||
+		     TI_RESTART_BLOCK != offsetof(struct thread_info,
+						  restart_block) ||
+		     TI_KUNA_REGS != offsetof(struct thread_info,
+					      kern_una_regs) ||
+		     TI_KUNA_INSN != offsetof(struct thread_info,
+					      kern_una_insn) ||
+		     TI_FPREGS != offsetof(struct thread_info, fpregs) ||
+		     (TI_FPREGS & (64 - 1)));
 
-	if (TRAP_PER_CPU_THREAD != offsetof(struct trap_per_cpu, thread) ||
-	    (TRAP_PER_CPU_PGD_PADDR !=
-	     offsetof(struct trap_per_cpu, pgd_paddr)) ||
-	    (TRAP_PER_CPU_CPU_MONDO_PA !=
-	     offsetof(struct trap_per_cpu, cpu_mondo_pa)) ||
-	    (TRAP_PER_CPU_DEV_MONDO_PA !=
-	     offsetof(struct trap_per_cpu, dev_mondo_pa)) ||
-	    (TRAP_PER_CPU_RESUM_MONDO_PA !=
-	     offsetof(struct trap_per_cpu, resum_mondo_pa)) ||
-	    (TRAP_PER_CPU_RESUM_KBUF_PA !=
-	     offsetof(struct trap_per_cpu, resum_kernel_buf_pa)) ||
-	    (TRAP_PER_CPU_NONRESUM_MONDO_PA !=
-	     offsetof(struct trap_per_cpu, nonresum_mondo_pa)) ||
-	    (TRAP_PER_CPU_NONRESUM_KBUF_PA !=
-	     offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) ||
-	    (TRAP_PER_CPU_FAULT_INFO !=
-	     offsetof(struct trap_per_cpu, fault_info)) ||
-	    (TRAP_PER_CPU_CPU_MONDO_BLOCK_PA !=
-	     offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) ||
-	    (TRAP_PER_CPU_CPU_LIST_PA !=
-	     offsetof(struct trap_per_cpu, cpu_list_pa)) ||
-	    (TRAP_PER_CPU_TSB_HUGE !=
-	     offsetof(struct trap_per_cpu, tsb_huge)) ||
-	    (TRAP_PER_CPU_TSB_HUGE_TEMP !=
-	     offsetof(struct trap_per_cpu, tsb_huge_temp)) ||
-	    (TRAP_PER_CPU_IRQ_WORKLIST_PA !=
-	     offsetof(struct trap_per_cpu, irq_worklist_pa)) ||
-	    (TRAP_PER_CPU_CPU_MONDO_QMASK !=
-	     offsetof(struct trap_per_cpu, cpu_mondo_qmask)) ||
-	    (TRAP_PER_CPU_DEV_MONDO_QMASK !=
-	     offsetof(struct trap_per_cpu, dev_mondo_qmask)) ||
-	    (TRAP_PER_CPU_RESUM_QMASK !=
-	     offsetof(struct trap_per_cpu, resum_qmask)) ||
-	    (TRAP_PER_CPU_NONRESUM_QMASK !=
-	     offsetof(struct trap_per_cpu, nonresum_qmask)))
-		trap_per_cpu_offsets_are_bolixed_dave();
+	BUILD_BUG_ON(TRAP_PER_CPU_THREAD != offsetof(struct trap_per_cpu,
+						     thread) ||
+		     (TRAP_PER_CPU_PGD_PADDR !=
+		      offsetof(struct trap_per_cpu, pgd_paddr)) ||
+		     (TRAP_PER_CPU_CPU_MONDO_PA !=
+		      offsetof(struct trap_per_cpu, cpu_mondo_pa)) ||
+		     (TRAP_PER_CPU_DEV_MONDO_PA !=
+		      offsetof(struct trap_per_cpu, dev_mondo_pa)) ||
+		     (TRAP_PER_CPU_RESUM_MONDO_PA !=
+		      offsetof(struct trap_per_cpu, resum_mondo_pa)) ||
+		     (TRAP_PER_CPU_RESUM_KBUF_PA !=
+		      offsetof(struct trap_per_cpu, resum_kernel_buf_pa)) ||
+		     (TRAP_PER_CPU_NONRESUM_MONDO_PA !=
+		      offsetof(struct trap_per_cpu, nonresum_mondo_pa)) ||
+		     (TRAP_PER_CPU_NONRESUM_KBUF_PA !=
+		      offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) ||
+		     (TRAP_PER_CPU_FAULT_INFO !=
+		      offsetof(struct trap_per_cpu, fault_info)) ||
+		     (TRAP_PER_CPU_CPU_MONDO_BLOCK_PA !=
+		      offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) ||
+		     (TRAP_PER_CPU_CPU_LIST_PA !=
+		      offsetof(struct trap_per_cpu, cpu_list_pa)) ||
+		     (TRAP_PER_CPU_TSB_HUGE !=
+		      offsetof(struct trap_per_cpu, tsb_huge)) ||
+		     (TRAP_PER_CPU_TSB_HUGE_TEMP !=
+		      offsetof(struct trap_per_cpu, tsb_huge_temp)) ||
+		     (TRAP_PER_CPU_IRQ_WORKLIST_PA !=
+		      offsetof(struct trap_per_cpu, irq_worklist_pa)) ||
+		     (TRAP_PER_CPU_CPU_MONDO_QMASK !=
+		      offsetof(struct trap_per_cpu, cpu_mondo_qmask)) ||
+		     (TRAP_PER_CPU_DEV_MONDO_QMASK !=
+		      offsetof(struct trap_per_cpu, dev_mondo_qmask)) ||
+		     (TRAP_PER_CPU_RESUM_QMASK !=
+		      offsetof(struct trap_per_cpu, resum_qmask)) ||
+		     (TRAP_PER_CPU_NONRESUM_QMASK !=
+		      offsetof(struct trap_per_cpu, nonresum_qmask)) ||
+		     (TRAP_PER_CPU_PER_CPU_BASE !=
+		      offsetof(struct trap_per_cpu, __per_cpu_base)));
 
-	if ((TSB_CONFIG_TSB !=
-	     offsetof(struct tsb_config, tsb)) ||
-	    (TSB_CONFIG_RSS_LIMIT !=
-	     offsetof(struct tsb_config, tsb_rss_limit)) ||
-	    (TSB_CONFIG_NENTRIES !=
-	     offsetof(struct tsb_config, tsb_nentries)) ||
-	    (TSB_CONFIG_REG_VAL !=
-	     offsetof(struct tsb_config, tsb_reg_val)) ||
-	    (TSB_CONFIG_MAP_VADDR !=
-	     offsetof(struct tsb_config, tsb_map_vaddr)) ||
-	    (TSB_CONFIG_MAP_PTE !=
-	     offsetof(struct tsb_config, tsb_map_pte)))
-		tsb_config_offsets_are_bolixed_dave();
+	BUILD_BUG_ON((TSB_CONFIG_TSB !=
+		      offsetof(struct tsb_config, tsb)) ||
+		     (TSB_CONFIG_RSS_LIMIT !=
+		      offsetof(struct tsb_config, tsb_rss_limit)) ||
+		     (TSB_CONFIG_NENTRIES !=
+		      offsetof(struct tsb_config, tsb_nentries)) ||
+		     (TSB_CONFIG_REG_VAL !=
+		      offsetof(struct tsb_config, tsb_reg_val)) ||
+		     (TSB_CONFIG_MAP_VADDR !=
+		      offsetof(struct tsb_config, tsb_map_vaddr)) ||
+		     (TSB_CONFIG_MAP_PTE !=
+		      offsetof(struct tsb_config, tsb_map_pte)));
 
 	/* Attach to the address space of init_task.  On SMP we
 	 * do this in smp.c:smp_callin for other cpus.
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index cbb282d..26bb391 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -358,6 +358,7 @@
 	protection_map[15] = PAGE_SHARED;
 	btfixup();
 	prom_build_devicetree();
+	of_fill_in_cpu_data();
 	device_scan();
 }
 
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index f26a352..ca92e2f 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1679,11 +1679,6 @@
 static void sun4u_pgprot_init(void);
 static void sun4v_pgprot_init(void);
 
-/* Dummy function */
-void __init setup_per_cpu_areas(void)
-{
-}
-
 void __init paging_init(void)
 {
 	unsigned long end_pfn, shift, phys_base;
@@ -1799,16 +1794,13 @@
 	if (tlb_type == hypervisor)
 		sun4v_ktsb_register();
 
-	/* We must setup the per-cpu areas before we pull in the
-	 * PROM and the MDESC.  The code there fills in cpu and
-	 * other information into per-cpu data structures.
-	 */
-	real_setup_per_cpu_areas();
-
 	prom_build_devicetree();
+	of_populate_present_mask();
 
-	if (tlb_type == hypervisor)
+	if (tlb_type == hypervisor) {
 		sun4v_mdesc_init();
+		mdesc_populate_present_mask(cpu_all_mask);
+	}
 
 	/* Once the OF device tree and MDESC have been setup, we know
 	 * the list of possible cpus.  Therefore we can allocate the
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 06c9a7d..ade4eb3 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/seq_file.h>
 #include <linux/kdebug.h>
+#include <linux/log2.h>
 
 #include <asm/bitext.h>
 #include <asm/page.h>
@@ -349,7 +350,7 @@
 		    vaddr, srmmu_nocache_end);
 		BUG();
 	}
-	if (size & (size-1)) {
+	if (!is_power_of_2(size)) {
 		printk("Size 0x%x is not a power of 2\n", size);
 		BUG();
 	}
diff --git a/block/blk-core.c b/block/blk-core.c
index f6452f6..b06cf5c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -26,7 +26,6 @@
 #include <linux/swap.h>
 #include <linux/writeback.h>
 #include <linux/task_io_accounting_ops.h>
-#include <linux/blktrace_api.h>
 #include <linux/fault-inject.h>
 
 #define CREATE_TRACE_POINTS
@@ -498,6 +497,11 @@
 
 	q->backing_dev_info.unplug_io_fn = blk_backing_dev_unplug;
 	q->backing_dev_info.unplug_io_data = q;
+	q->backing_dev_info.ra_pages =
+			(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
+	q->backing_dev_info.state = 0;
+	q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
+
 	err = bdi_init(&q->backing_dev_info);
 	if (err) {
 		kmem_cache_free(blk_requestq_cachep, q);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index d71cedc..7541ea4 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -96,6 +96,31 @@
 EXPORT_SYMBOL_GPL(blk_queue_lld_busy);
 
 /**
+ * blk_set_default_limits - reset limits to default values
+ * @limits:  the queue_limits structure to reset
+ *
+ * Description:
+ *   Returns a queue_limit struct to its default state.  Can be used by
+ *   stacking drivers like DM that stage table swaps and reuse an
+ *   existing device queue.
+ */
+void blk_set_default_limits(struct queue_limits *lim)
+{
+	lim->max_phys_segments = MAX_PHYS_SEGMENTS;
+	lim->max_hw_segments = MAX_HW_SEGMENTS;
+	lim->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
+	lim->max_segment_size = MAX_SEGMENT_SIZE;
+	lim->max_sectors = lim->max_hw_sectors = SAFE_MAX_SECTORS;
+	lim->logical_block_size = lim->physical_block_size = lim->io_min = 512;
+	lim->bounce_pfn = BLK_BOUNCE_ANY;
+	lim->alignment_offset = 0;
+	lim->io_opt = 0;
+	lim->misaligned = 0;
+	lim->no_cluster = 0;
+}
+EXPORT_SYMBOL(blk_set_default_limits);
+
+/**
  * blk_queue_make_request - define an alternate make_request function for a device
  * @q:  the request queue for the device to be affected
  * @mfn: the alternate make_request function
@@ -123,18 +148,8 @@
 	 * set defaults
 	 */
 	q->nr_requests = BLKDEV_MAX_RQ;
-	blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
-	blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
-	blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
-	blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
 
 	q->make_request_fn = mfn;
-	q->backing_dev_info.ra_pages =
-			(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
-	q->backing_dev_info.state = 0;
-	q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
-	blk_queue_max_sectors(q, SAFE_MAX_SECTORS);
-	blk_queue_logical_block_size(q, 512);
 	blk_queue_dma_alignment(q, 511);
 	blk_queue_congestion_threshold(q);
 	q->nr_batching = BLK_BATCH_REQ;
@@ -147,6 +162,8 @@
 	q->unplug_timer.function = blk_unplug_timeout;
 	q->unplug_timer.data = (unsigned long)q;
 
+	blk_set_default_limits(&q->limits);
+
 	/*
 	 * by default assume old behaviour and bounce for any highmem page
 	 */
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index ef2f72d..833ec18 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -122,7 +122,6 @@
 	struct cfq_queue *async_idle_cfqq;
 
 	sector_t last_position;
-	unsigned long last_end_request;
 
 	/*
 	 * tunables, see top of file
@@ -1253,7 +1252,7 @@
 
 	BUG_ON(cfqd->busy_queues);
 
-	cfq_log(cfqd, "forced_dispatch=%d\n", dispatched);
+	cfq_log(cfqd, "forced_dispatch=%d", dispatched);
 	return dispatched;
 }
 
@@ -2164,9 +2163,6 @@
 	if (cfq_cfqq_sync(cfqq))
 		cfqd->sync_flight--;
 
-	if (!cfq_class_idle(cfqq))
-		cfqd->last_end_request = now;
-
 	if (sync)
 		RQ_CIC(rq)->last_end_request = now;
 
@@ -2479,7 +2475,6 @@
 
 	INIT_WORK(&cfqd->unplug_work, cfq_kick_queue);
 
-	cfqd->last_end_request = jiffies;
 	cfqd->cfq_quantum = cfq_quantum;
 	cfqd->cfq_fifo_expire[0] = cfq_fifo_expire[0];
 	cfqd->cfq_fifo_expire[1] = cfq_fifo_expire[1];
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 07e2013..0bba148 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -139,7 +139,7 @@
 acpi_status
 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			       u32 function,
-			       acpi_physical_address address,
+			       u32 region_offset,
 			       u32 bit_width, acpi_integer * value);
 
 acpi_status
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 16e5210..3d87362 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -362,9 +362,6 @@
 extern u8 acpi_gbl_abort_method;
 extern u8 acpi_gbl_db_terminate_threads;
 
-ACPI_EXTERN int optind;
-ACPI_EXTERN char *optarg;
-
 ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
 ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 2ec394a..ee986ed 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -205,6 +205,7 @@
 #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_ALLOCATED_BUFFER          0x40	/* Method AML buffer is dynamic (install_method) */
 
 #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 */
@@ -788,11 +789,14 @@
 /* For control registers, both ignored and reserved bits must be preserved */
 
 /*
- * The ACPI spec says to ignore PM1_CTL.SCI_EN (bit 0)
- * but we need to be able to write ACPI_BITREG_SCI_ENABLE directly
- * as a BIOS workaround on some machines.
+ * For PM1 control, the SCI enable bit (bit 0, SCI_EN) is defined by the
+ * ACPI specification to be a "preserved" bit - "OSPM always preserves this
+ * bit position", section 4.7.3.2.1. However, on some machines the OS must
+ * write a one to this bit after resume for the machine to work properly.
+ * To enable this, we no longer attempt to preserve this bit. No machines
+ * are known to fail if the bit is not preserved. (May 2009)
  */
-#define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200	/* Bits 9 */
+#define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200	/* Bit 9 */
 #define ACPI_PM1_CONTROL_RESERVED_BITS          0xC1F8	/* Bits 14-15, 3-8 */
 #define ACPI_PM1_CONTROL_PRESERVED_BITS \
 	       (ACPI_PM1_CONTROL_IGNORED_BITS | ACPI_PM1_CONTROL_RESERVED_BITS)
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 46cb5b4..94cdc2b8 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -99,10 +99,19 @@
 		       acpi_walk_callback user_function,
 		       void *context, void **return_value);
 
-struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
-						  *parent, struct acpi_namespace_node
+struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
+						  *parent,
+						  struct acpi_namespace_node
 						  *child);
 
+struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
+							struct
+							acpi_namespace_node
+							*parent,
+							struct
+							acpi_namespace_node
+							*child);
+
 /*
  * nsparse - table parsing
  */
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index ff851c5..067f967 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -483,7 +483,7 @@
 
 #define AML_METHOD_ARG_COUNT        0x07
 #define AML_METHOD_SERIALIZED       0x08
-#define AML_METHOD_SYNCH_LEVEL      0xF0
+#define AML_METHOD_SYNC_LEVEL       0xF0
 
 /* METHOD_FLAGS_ARG_COUNT is not used internally, define additional flags */
 
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index dab3f48..02e6caa 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -734,7 +734,8 @@
 
 			/* Local ID (0-7) is (AML opcode - base AML_LOCAL_OP) */
 
-			obj_desc->reference.value = opcode - AML_LOCAL_OP;
+			obj_desc->reference.value =
+			    ((u32)opcode) - AML_LOCAL_OP;
 			obj_desc->reference.class = ACPI_REFCLASS_LOCAL;
 
 #ifndef ACPI_NO_METHOD_EXECUTION
@@ -754,7 +755,7 @@
 
 			/* Arg ID (0-6) is (AML opcode - base AML_ARG_OP) */
 
-			obj_desc->reference.value = opcode - AML_ARG_OP;
+			obj_desc->reference.value = ((u32)opcode) - AML_ARG_OP;
 			obj_desc->reference.class = ACPI_REFCLASS_ARG;
 
 #ifndef ACPI_NO_METHOD_EXECUTION
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index b4c87b5..584d766 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -1386,14 +1386,19 @@
 
 	case AML_BREAK_POINT_OP:
 
-		/* Call up to the OS service layer to handle this */
+		/*
+		 * Set the single-step flag. This will cause the debugger (if present)
+		 * to break to the console within the AML debugger at the start of the
+		 * next AML instruction.
+		 */
+		ACPI_DEBUGGER_EXEC(acpi_gbl_cm_single_step = TRUE);
+		ACPI_DEBUGGER_EXEC(acpi_os_printf
+				   ("**break** Executed AML BreakPoint opcode\n"));
 
-		status =
-		    acpi_os_signal(ACPI_SIGNAL_BREAKPOINT,
-				   "Executed AML Breakpoint opcode");
+		/* Call to the OSL in case OS wants a piece of the action */
 
-		/* If and when it returns, all done. */
-
+		status = acpi_os_signal(ACPI_SIGNAL_BREAKPOINT,
+					"Executed AML Breakpoint opcode");
 		break;
 
 	case AML_BREAK_OP:
diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c
index 40f92bf..e46c821 100644
--- a/drivers/acpi/acpica/dswstate.c
+++ b/drivers/acpi/acpica/dswstate.c
@@ -102,7 +102,7 @@
 	/* Return object of the top element and clean that top element result stack */
 
 	walk_state->result_count--;
-	index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
+	index = (u32)walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
 
 	*object = state->results.obj_desc[index];
 	if (!*object) {
@@ -186,7 +186,7 @@
 
 	/* Assign the address of object to the top free element of result stack */
 
-	index = walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
+	index = (u32)walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM;
 	state->results.obj_desc[index] = object;
 	walk_state->result_count++;
 
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 538d632..98c7f9c 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -275,7 +275,7 @@
  *
  * PARAMETERS:  region_obj          - Internal region object
  *              Function            - Read or Write operation
- *              Address             - Where in the space to read or write
+ *              region_offset       - Where in the region to read or write
  *              bit_width           - Field width in bits (8, 16, 32, or 64)
  *              Value               - Pointer to in or out value, must be
  *                                    full 64-bit acpi_integer
@@ -290,7 +290,7 @@
 acpi_status
 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			       u32 function,
-			       acpi_physical_address address,
+			       u32 region_offset,
 			       u32 bit_width, acpi_integer * value)
 {
 	acpi_status status;
@@ -396,7 +396,8 @@
 	ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
 			  "Handler %p (@%p) Address %8.8X%8.8X [%s]\n",
 			  &region_obj->region.handler->address_space, handler,
-			  ACPI_FORMAT_NATIVE_UINT(address),
+			  ACPI_FORMAT_NATIVE_UINT(region_obj->region.address +
+						  region_offset),
 			  acpi_ut_get_region_name(region_obj->region.
 						  space_id)));
 
@@ -412,8 +413,9 @@
 
 	/* Call the handler */
 
-	status = handler(function, address, bit_width, value,
-			 handler_desc->address_space.context,
+	status = handler(function,
+			 (region_obj->region.address + region_offset),
+			 bit_width, value, handler_desc->address_space.context,
 			 region_obj2->extra.region_context);
 
 	if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index d0a080747..4721f58 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -51,7 +51,7 @@
 ACPI_MODULE_NAME("evxfevnt")
 
 /* Local prototypes */
-acpi_status
+static acpi_status
 acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 		       struct acpi_gpe_block_info *gpe_block, void *context);
 
@@ -785,7 +785,7 @@
  *              block device. NULL if the GPE is one of the FADT-defined GPEs.
  *
  ******************************************************************************/
-acpi_status
+static acpi_status
 acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 		       struct acpi_gpe_block_info *gpe_block, void *context)
 {
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 3deb20a..277fd60 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -47,6 +47,7 @@
 #include "acnamesp.h"
 #include "actables.h"
 #include "acdispat.h"
+#include "acevents.h"
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("exconfig")
@@ -57,6 +58,10 @@
 		  struct acpi_namespace_node *parent_node,
 		  union acpi_operand_object **ddb_handle);
 
+static acpi_status
+acpi_ex_region_read(union acpi_operand_object *obj_desc,
+		    u32 length, u8 *buffer);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ex_add_table
@@ -91,6 +96,7 @@
 
 	/* Init the table handle */
 
+	obj_desc->common.flags |= AOPOBJ_DATA_VALID;
 	obj_desc->reference.class = ACPI_REFCLASS_TABLE;
 	*ddb_handle = obj_desc;
 
@@ -229,6 +235,8 @@
 				       walk_state);
 		if (ACPI_FAILURE(status)) {
 			(void)acpi_ex_unload_table(ddb_handle);
+
+			acpi_ut_remove_reference(ddb_handle);
 			return_ACPI_STATUS(status);
 		}
 	}
@@ -254,6 +262,47 @@
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ex_region_read
+ *
+ * PARAMETERS:  obj_desc        - Region descriptor
+ *              Length          - Number of bytes to read
+ *              Buffer          - Pointer to where to put the data
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Read data from an operation region. The read starts from the
+ *              beginning of the region.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer)
+{
+	acpi_status status;
+	acpi_integer value;
+	u32 region_offset = 0;
+	u32 i;
+
+	/* Bytewise reads */
+
+	for (i = 0; i < length; i++) {
+		status = acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
+							region_offset, 8,
+							&value);
+		if (ACPI_FAILURE(status)) {
+			return status;
+		}
+
+		*buffer = (u8)value;
+		buffer++;
+		region_offset++;
+	}
+
+	return AE_OK;
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ex_load_op
  *
  * PARAMETERS:  obj_desc        - Region or Buffer/Field where the table will be
@@ -314,18 +363,23 @@
 			}
 		}
 
-		/*
-		 * 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 = acpi_os_map_memory(obj_desc->region.address,
-					   sizeof(struct acpi_table_header));
+		/* Get the table header first so we can get the table length */
+
+		table = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
 		if (!table) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
+		status =
+		    acpi_ex_region_read(obj_desc,
+					sizeof(struct acpi_table_header),
+					ACPI_CAST_PTR(u8, table));
 		length = table->length;
-		acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+		ACPI_FREE(table);
+
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
 
 		/* Must have at least an ACPI table header */
 
@@ -334,10 +388,19 @@
 		}
 
 		/*
-		 * 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.
+		 * The original implementation simply mapped the table, with no copy.
+		 * However, 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.
+		 *
+		 * The latest implementation (5/2009) does not use a mapping at all.
+		 * We use the low-level operation region interface to read the table
+		 * instead of the obvious optimization of using a direct mapping.
+		 * This maintains a consistent use of operation regions across the
+		 * entire subsystem. This is important if additional processing must
+		 * be performed in the (possibly user-installed) operation region
+		 * handler. For example, acpi_exec and ASLTS depend on this.
 		 */
 
 		/* Allocate a buffer for the table */
@@ -347,17 +410,16 @@
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
-		/* Map the entire table and copy it */
+		/* Read the entire table */
 
-		table = acpi_os_map_memory(obj_desc->region.address, length);
-		if (!table) {
+		status = acpi_ex_region_read(obj_desc, length,
+					     ACPI_CAST_PTR(u8,
+							   table_desc.pointer));
+		if (ACPI_FAILURE(status)) {
 			ACPI_FREE(table_desc.pointer);
-			return_ACPI_STATUS(AE_NO_MEMORY);
+			return_ACPI_STATUS(status);
 		}
 
-		ACPI_MEMCPY(table_desc.pointer, table, length);
-		acpi_os_unmap_memory(table, length);
-
 		table_desc.address = obj_desc->region.address;
 		break;
 
@@ -454,6 +516,10 @@
 		return_ACPI_STATUS(status);
 	}
 
+	/* Remove the reference by added by acpi_ex_store above */
+
+	acpi_ut_remove_reference(ddb_handle);
+
 	/* Invoke table handler if present */
 
 	if (acpi_gbl_table_handler) {
@@ -495,13 +561,18 @@
 
 	/*
 	 * Validate the handle
-	 * Although the handle is partially validated in acpi_ex_reconfiguration(),
+	 * Although the handle is partially validated in acpi_ex_reconfiguration()
 	 * when it calls acpi_ex_resolve_operands(), the handle is more completely
 	 * validated here.
+	 *
+	 * Handle must be a valid operand object of type reference. Also, the
+	 * ddb_handle must still be marked valid (table has not been previously
+	 * unloaded)
 	 */
 	if ((!ddb_handle) ||
 	    (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
-	    (ddb_handle->common.type != ACPI_TYPE_LOCAL_REFERENCE)) {
+	    (ddb_handle->common.type != ACPI_TYPE_LOCAL_REFERENCE) ||
+	    (!(ddb_handle->common.flags & AOPOBJ_DATA_VALID))) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
@@ -509,6 +580,12 @@
 
 	table_index = table_desc->reference.value;
 
+	/* Ensure the table is still loaded */
+
+	if (!acpi_tb_is_table_loaded(table_index)) {
+		return_ACPI_STATUS(AE_NOT_EXIST);
+	}
+
 	/* Invoke table handler if present */
 
 	if (acpi_gbl_table_handler) {
@@ -530,8 +607,10 @@
 	(void)acpi_tb_release_owner_id(table_index);
 	acpi_tb_set_table_loaded_flag(table_index, FALSE);
 
-	/* Table unloaded, remove a reference to the ddb_handle object */
-
-	acpi_ut_remove_reference(ddb_handle);
+	/*
+	 * Invalidate the handle. We do this because the handle may be stored
+	 * in a named object and may not be actually deleted until much later.
+	 */
+	ddb_handle->common.flags &= ~AOPOBJ_DATA_VALID;
 	return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index a57ad25..02b25d2 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -502,7 +502,7 @@
 		 * ACPI 2.0: sync_level = sync_level in method declaration
 		 */
 		obj_desc->method.sync_level = (u8)
-		    ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4);
+		    ((method_flags & AML_METHOD_SYNC_LEVEL) >> 4);
 	}
 
 	/* Attach the new object to the method Node */
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 89d141f..ec52461 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -120,9 +120,11 @@
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"}
 };
 
-static struct acpi_exdump_info acpi_ex_dump_method[8] = {
+static struct acpi_exdump_info acpi_ex_dump_method[9] = {
 	{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL},
-	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"},
+	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.method_flags), "Method Flags"},
+	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count),
+	 "Parameter Count"},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 99cee61..d4075b8 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -222,7 +222,7 @@
 {
 	acpi_status status;
 	union acpi_operand_object *rgn_desc;
-	acpi_physical_address address;
+	u32 region_offset;
 
 	ACPI_FUNCTION_TRACE(ex_access_region);
 
@@ -243,7 +243,7 @@
 	 * 3) The current offset into the field
 	 */
 	rgn_desc = obj_desc->common_field.region_obj;
-	address = rgn_desc->region.address +
+	region_offset =
 	    obj_desc->common_field.base_byte_offset + field_datum_byte_offset;
 
 	if ((function & ACPI_IO_MASK) == ACPI_READ) {
@@ -260,16 +260,18 @@
 			      obj_desc->common_field.access_byte_width,
 			      obj_desc->common_field.base_byte_offset,
 			      field_datum_byte_offset, ACPI_CAST_PTR(void,
-								     address)));
+								     (rgn_desc->
+								      region.
+								      address +
+								      region_offset))));
 
 	/* Invoke the appropriate address_space/op_region handler */
 
-	status = acpi_ev_address_space_dispatch(rgn_desc, function,
-						address,
-						ACPI_MUL_8(obj_desc->
-							   common_field.
-							   access_byte_width),
-						value);
+	status =
+	    acpi_ev_address_space_dispatch(rgn_desc, function, region_offset,
+					   ACPI_MUL_8(obj_desc->common_field.
+						      access_byte_width),
+					   value);
 
 	if (ACPI_FAILURE(status)) {
 		if (status == AE_NOT_IMPLEMENTED) {
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index d301c1f..2f01142 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -83,6 +83,15 @@
 
 	if (obj_desc->mutex.prev) {
 		(obj_desc->mutex.prev)->mutex.next = obj_desc->mutex.next;
+
+		/*
+		 * Migrate the previous sync level associated with this mutex to the
+		 * previous mutex on the list so that it may be preserved. This handles
+		 * the case where several mutexes have been acquired at the same level,
+		 * but are not released in opposite order.
+		 */
+		(obj_desc->mutex.prev)->mutex.original_sync_level =
+		    obj_desc->mutex.original_sync_level;
 	} else {
 		thread->acquired_mutex_list = obj_desc->mutex.next;
 	}
@@ -349,6 +358,7 @@
 		      struct acpi_walk_state *walk_state)
 {
 	acpi_status status = AE_OK;
+	u8 previous_sync_level;
 
 	ACPI_FUNCTION_TRACE(ex_release_mutex);
 
@@ -373,11 +383,12 @@
 	     walk_state->thread->thread_id)
 	    && (obj_desc != acpi_gbl_global_lock_mutex)) {
 		ACPI_ERROR((AE_INFO,
-			    "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX",
-			    (unsigned long)walk_state->thread->thread_id,
+			    "Thread %p cannot release Mutex [%4.4s] acquired by thread %p",
+			    ACPI_CAST_PTR(void, walk_state->thread->thread_id),
 			    acpi_ut_get_node_name(obj_desc->mutex.node),
-			    (unsigned long)obj_desc->mutex.owner_thread->
-			    thread_id));
+			    ACPI_CAST_PTR(void,
+					  obj_desc->mutex.owner_thread->
+					  thread_id)));
 		return_ACPI_STATUS(AE_AML_NOT_OWNER);
 	}
 
@@ -391,10 +402,14 @@
 	}
 
 	/*
-	 * The sync level of the mutex must be less than or equal to the current
-	 * sync level
+	 * The sync level of the mutex must be equal to the current sync level. In
+	 * other words, the current level means that at least one mutex at that
+	 * level is currently being held. Attempting to release a mutex of a
+	 * different level can only mean that the mutex ordering rule is being
+	 * violated. This behavior is clarified in ACPI 4.0 specification.
 	 */
-	if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
+	if (obj_desc->mutex.sync_level !=
+	    walk_state->thread->current_sync_level) {
 		ACPI_ERROR((AE_INFO,
 			    "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d",
 			    acpi_ut_get_node_name(obj_desc->mutex.node),
@@ -403,14 +418,24 @@
 		return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
 	}
 
+	/*
+	 * Get the previous sync_level from the head of the acquired mutex list.
+	 * This handles the case where several mutexes at the same level have been
+	 * acquired, but are not released in reverse order.
+	 */
+	previous_sync_level =
+	    walk_state->thread->acquired_mutex_list->mutex.original_sync_level;
+
 	status = acpi_ex_release_mutex_object(obj_desc);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
 
 	if (obj_desc->mutex.acquisition_depth == 0) {
 
-		/* Restore the original sync_level */
+		/* Restore the previous sync_level */
 
-		walk_state->thread->current_sync_level =
-		    obj_desc->mutex.original_sync_level;
+		walk_state->thread->current_sync_level = previous_sync_level;
 	}
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 90d6061..6efd07a 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -193,10 +193,12 @@
 
 		case ACPI_REFCLASS_TABLE:
 
+			/* Case for ddb_handle */
+
 			ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
 					      "Table Index 0x%X\n",
 					      source_desc->reference.value));
-			break;
+			return;
 
 		default:
 			break;
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 7b2fb60..23d5505 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -81,9 +81,9 @@
 
 	ACPI_FUNCTION_TRACE(hw_clear_acpi_status);
 
-	ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %0llX\n",
+	ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %8.8X%8.8X\n",
 			  ACPI_BITMASK_ALL_FIXED_STATUS,
-			  acpi_gbl_xpm1a_status.address));
+			  ACPI_FORMAT_UINT64(acpi_gbl_xpm1a_status.address)));
 
 	lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
 
diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index aceb931..efc971a 100644
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -334,9 +334,7 @@
 
 		/* Get the next node in this scope (NULL if none) */
 
-		child_node =
-		    acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
-					  child_node);
+		child_node = acpi_ns_get_next_node(parent_node, child_node);
 		if (child_node) {
 
 			/* Found a child node - detach any attached object */
@@ -345,8 +343,7 @@
 
 			/* Check if this node has any children */
 
-			if (acpi_ns_get_next_node
-			    (ACPI_TYPE_ANY, child_node, NULL)) {
+			if (child_node->child) {
 				/*
 				 * There is at least one child of this node,
 				 * visit the node
@@ -432,9 +429,7 @@
 		 * Get the next child of this parent node. When child_node is NULL,
 		 * the first child of the parent is returned
 		 */
-		child_node =
-		    acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
-					  child_node);
+		child_node = acpi_ns_get_next_node(parent_node, child_node);
 
 		if (deletion_node) {
 			acpi_ns_delete_children(deletion_node);
@@ -452,8 +447,7 @@
 
 			/* Check if this node has any children */
 
-			if (acpi_ns_get_next_node
-			    (ACPI_TYPE_ANY, child_node, NULL)) {
+			if (child_node->child) {
 				/*
 				 * There is at least one child of this node,
 				 * visit the node
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index ae3dc10..af8e6bc 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -149,7 +149,7 @@
 
 	name_buffer = ACPI_ALLOCATE_ZEROED(size);
 	if (!name_buffer) {
-		ACPI_ERROR((AE_INFO, "Allocation failure"));
+		ACPI_ERROR((AE_INFO, "Could not allocate %u bytes", (u32)size));
 		return_PTR(NULL);
 	}
 
diff --git a/drivers/acpi/acpica/nsobject.c b/drivers/acpi/acpica/nsobject.c
index 3eb20bf..60f3af0 100644
--- a/drivers/acpi/acpica/nsobject.c
+++ b/drivers/acpi/acpica/nsobject.c
@@ -213,6 +213,15 @@
 		return_VOID;
 	}
 
+	if (node->flags & ANOBJ_ALLOCATED_BUFFER) {
+
+		/* Free the dynamic aml buffer */
+
+		if (obj_desc->common.type == ACPI_TYPE_METHOD) {
+			ACPI_FREE(obj_desc->method.aml_start);
+		}
+	}
+
 	/* Clear the entry in all cases */
 
 	node->object = NULL;
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index d9e8cbc6..7f8e066 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -144,7 +144,7 @@
 
 	pathname = acpi_ns_get_external_pathname(node);
 	if (!pathname) {
-		pathname = ACPI_CAST_PTR(char, predefined->info.name);
+		return AE_OK;	/* Could not get pathname, ignore */
 	}
 
 	/*
@@ -230,10 +230,7 @@
 	}
 
       exit:
-	if (pathname != predefined->info.name) {
-		ACPI_FREE(pathname);
-	}
-
+	ACPI_FREE(pathname);
 	return (status);
 }
 
diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index f9b4f51..7e86563 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -45,6 +45,10 @@
 #include "accommon.h"
 #include "acnamesp.h"
 
+#ifdef ACPI_ASL_COMPILER
+#include "amlcode.h"
+#endif
+
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nssearch")
 
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index 83e3aa6..35539df 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -52,6 +52,51 @@
  *
  * FUNCTION:    acpi_ns_get_next_node
  *
+ * PARAMETERS:  parent_node         - Parent node whose children we are
+ *                                    getting
+ *              child_node          - Previous child that was found.
+ *                                    The NEXT child will be returned
+ *
+ * RETURN:      struct acpi_namespace_node - Pointer to the NEXT child or NULL if
+ *                                    none is found.
+ *
+ * DESCRIPTION: Return the next peer node within the namespace.  If Handle
+ *              is valid, Scope is ignored.  Otherwise, the first node
+ *              within Scope is returned.
+ *
+ ******************************************************************************/
+struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
+						  *parent_node,
+						  struct acpi_namespace_node
+						  *child_node)
+{
+	ACPI_FUNCTION_ENTRY();
+
+	if (!child_node) {
+
+		/* It's really the parent's _scope_ that we want */
+
+		return parent_node->child;
+	}
+
+	/*
+	 * Get the next node.
+	 *
+	 * If we are at the end of this peer list, return NULL
+	 */
+	if (child_node->flags & ANOBJ_END_OF_PEER_LIST) {
+		return NULL;
+	}
+
+	/* Otherwise just return the next peer */
+
+	return child_node->peer;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_next_node_typed
+ *
  * PARAMETERS:  Type                - Type of node to be searched for
  *              parent_node         - Parent node whose children we are
  *                                    getting
@@ -66,26 +111,21 @@
  *              within Scope is returned.
  *
  ******************************************************************************/
-struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
-						  *parent_node, struct acpi_namespace_node
-						  *child_node)
+
+struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
+							struct
+							acpi_namespace_node
+							*parent_node,
+							struct
+							acpi_namespace_node
+							*child_node)
 {
 	struct acpi_namespace_node *next_node = NULL;
 
 	ACPI_FUNCTION_ENTRY();
 
-	if (!child_node) {
+	next_node = acpi_ns_get_next_node(parent_node, child_node);
 
-		/* It's really the parent's _scope_ that we want */
-
-		next_node = parent_node->child;
-	}
-
-	else {
-		/* Start search at the NEXT node */
-
-		next_node = acpi_ns_get_next_valid_node(child_node);
-	}
 
 	/* If any type is OK, we are done */
 
@@ -186,9 +226,7 @@
 		/* Get the next node in this scope.  Null if not found */
 
 		status = AE_OK;
-		child_node =
-		    acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
-					  child_node);
+		child_node = acpi_ns_get_next_node(parent_node, child_node);
 		if (child_node) {
 
 			/* Found next child, get the type if we are not searching for ANY */
@@ -269,8 +307,7 @@
 			 * function has specified that the maximum depth has been reached.
 			 */
 			if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
-				if (acpi_ns_get_next_node
-				    (ACPI_TYPE_ANY, child_node, NULL)) {
+				if (child_node->child) {
 
 					/* There is at least one child of this node, visit it */
 
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 9589fea..f23593d 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -45,6 +45,8 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
+#include "acparser.h"
+#include "amlcode.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsxfname")
@@ -358,3 +360,151 @@
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_object_info)
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_install_method
+ *
+ * PARAMETERS:  Buffer         - An ACPI table containing one control method
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install a control method into the namespace. If the method
+ *              name already exists in the namespace, it is overwritten. The
+ *              input buffer must contain a valid DSDT or SSDT containing a
+ *              single control method.
+ *
+ ******************************************************************************/
+acpi_status acpi_install_method(u8 *buffer)
+{
+	struct acpi_table_header *table =
+	    ACPI_CAST_PTR(struct acpi_table_header, buffer);
+	u8 *aml_buffer;
+	u8 *aml_start;
+	char *path;
+	struct acpi_namespace_node *node;
+	union acpi_operand_object *method_obj;
+	struct acpi_parse_state parser_state;
+	u32 aml_length;
+	u16 opcode;
+	u8 method_flags;
+	acpi_status status;
+
+	/* Parameter validation */
+
+	if (!buffer) {
+		return AE_BAD_PARAMETER;
+	}
+
+	/* Table must be a DSDT or SSDT */
+
+	if (!ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) &&
+	    !ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) {
+		return AE_BAD_HEADER;
+	}
+
+	/* First AML opcode in the table must be a control method */
+
+	parser_state.aml = buffer + sizeof(struct acpi_table_header);
+	opcode = acpi_ps_peek_opcode(&parser_state);
+	if (opcode != AML_METHOD_OP) {
+		return AE_BAD_PARAMETER;
+	}
+
+	/* Extract method information from the raw AML */
+
+	parser_state.aml += acpi_ps_get_opcode_size(opcode);
+	parser_state.pkg_end = acpi_ps_get_next_package_end(&parser_state);
+	path = acpi_ps_get_next_namestring(&parser_state);
+	method_flags = *parser_state.aml++;
+	aml_start = parser_state.aml;
+	aml_length = ACPI_PTR_DIFF(parser_state.pkg_end, aml_start);
+
+	/*
+	 * Allocate resources up-front. We don't want to have to delete a new
+	 * node from the namespace if we cannot allocate memory.
+	 */
+	aml_buffer = ACPI_ALLOCATE(aml_length);
+	if (!aml_buffer) {
+		return AE_NO_MEMORY;
+	}
+
+	method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD);
+	if (!method_obj) {
+		ACPI_FREE(aml_buffer);
+		return AE_NO_MEMORY;
+	}
+
+	/* Lock namespace for acpi_ns_lookup, we may be creating a new node */
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		goto error_exit;
+	}
+
+	/* The lookup either returns an existing node or creates a new one */
+
+	status =
+	    acpi_ns_lookup(NULL, path, ACPI_TYPE_METHOD, ACPI_IMODE_LOAD_PASS1,
+			   ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND,
+			   NULL, &node);
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+	if (ACPI_FAILURE(status)) {	/* ns_lookup */
+		if (status != AE_ALREADY_EXISTS) {
+			goto error_exit;
+		}
+
+		/* Node existed previously, make sure it is a method node */
+
+		if (node->type != ACPI_TYPE_METHOD) {
+			status = AE_TYPE;
+			goto error_exit;
+		}
+	}
+
+	/* Copy the method AML to the local buffer */
+
+	ACPI_MEMCPY(aml_buffer, aml_start, aml_length);
+
+	/* Initialize the method object with the new method's information */
+
+	method_obj->method.aml_start = aml_buffer;
+	method_obj->method.aml_length = aml_length;
+
+	method_obj->method.param_count = (u8)
+	    (method_flags & AML_METHOD_ARG_COUNT);
+
+	method_obj->method.method_flags = (u8)
+	    (method_flags & ~AML_METHOD_ARG_COUNT);
+
+	if (method_flags & AML_METHOD_SERIALIZED) {
+		method_obj->method.sync_level = (u8)
+		    ((method_flags & AML_METHOD_SYNC_LEVEL) >> 4);
+	}
+
+	/*
+	 * Now that it is complete, we can attach the new method object to
+	 * the method Node (detaches/deletes any existing object)
+	 */
+	status = acpi_ns_attach_object(node, method_obj, ACPI_TYPE_METHOD);
+
+	/*
+	 * Flag indicates AML buffer is dynamic, must be deleted later.
+	 * Must be set only after attach above.
+	 */
+	node->flags |= ANOBJ_ALLOCATED_BUFFER;
+
+	/* Remove local reference to the method object */
+
+	acpi_ut_remove_reference(method_obj);
+	return status;
+
+error_exit:
+
+	ACPI_FREE(aml_buffer);
+	ACPI_FREE(method_obj);
+	return status;
+}
+ACPI_EXPORT_SYMBOL(acpi_install_method)
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 1c7efc1..4071bad 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -162,6 +162,7 @@
 acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
 {
 	struct acpi_namespace_node *node;
+	struct acpi_namespace_node *parent_node;
 	acpi_status status;
 
 	if (!ret_handle) {
@@ -189,12 +190,12 @@
 
 	/* Get the parent entry */
 
-	*ret_handle =
-	    acpi_ns_convert_entry_to_handle(acpi_ns_get_parent_node(node));
+	parent_node = acpi_ns_get_parent_node(node);
+	*ret_handle = acpi_ns_convert_entry_to_handle(parent_node);
 
 	/* Return exception if parent is null */
 
-	if (!acpi_ns_get_parent_node(node)) {
+	if (!parent_node) {
 		status = AE_NULL_ENTRY;
 	}
 
@@ -268,7 +269,7 @@
 
 	/* Internal function does the real work */
 
-	node = acpi_ns_get_next_node(type, parent_node, child_node);
+	node = acpi_ns_get_next_node_typed(type, parent_node, child_node);
 	if (!node) {
 		status = AE_NOT_FOUND;
 		goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index 88b5a2c..3c4dcc3 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -547,7 +547,7 @@
 
 		if (!package_element ||
 		    (package_element->common.type != ACPI_TYPE_PACKAGE)) {
-			return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+			return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 		}
 
 		/*
@@ -593,9 +593,6 @@
 			} else {
 				temp_size_needed +=
 				    acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
-				if (!temp_size_needed) {
-					return_ACPI_STATUS(AE_BAD_PARAMETER);
-				}
 			}
 		} else {
 			/*
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 69a2aa5..395212b 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -338,13 +338,17 @@
 	switch (resource->type) {
 	case ACPI_RESOURCE_TYPE_ADDRESS16:
 
-		address16 = (struct acpi_resource_address16 *)&resource->data;
+		address16 =
+		    ACPI_CAST_PTR(struct acpi_resource_address16,
+				  &resource->data);
 		ACPI_COPY_ADDRESS(out, address16);
 		break;
 
 	case ACPI_RESOURCE_TYPE_ADDRESS32:
 
-		address32 = (struct acpi_resource_address32 *)&resource->data;
+		address32 =
+		    ACPI_CAST_PTR(struct acpi_resource_address32,
+				  &resource->data);
 		ACPI_COPY_ADDRESS(out, address32);
 		break;
 
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 71e655d..82b02dc 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -284,9 +284,9 @@
 	if (length > sizeof(struct acpi_table_fadt)) {
 		ACPI_WARNING((AE_INFO,
 			      "FADT (revision %u) is longer than ACPI 2.0 version, "
-			      "truncating length 0x%X to 0x%zX",
-			      table->revision, (unsigned)length,
-			      sizeof(struct acpi_table_fadt)));
+			      "truncating length 0x%X to 0x%X",
+			      table->revision, length,
+			      (u32)sizeof(struct acpi_table_fadt)));
 	}
 
 	/* Clear the entire local FADT */
@@ -441,7 +441,7 @@
 								   &acpi_gbl_FADT,
 								   fadt_info_table
 								   [i].length),
-						     address32);
+						     (u64) address32);
 		}
 	}
 }
@@ -469,7 +469,6 @@
 static void acpi_tb_validate_fadt(void)
 {
 	char *name;
-	u32 *address32;
 	struct acpi_generic_address *address64;
 	u8 length;
 	u32 i;
@@ -505,15 +504,12 @@
 
 	for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
 		/*
-		 * Generate pointers to the 32-bit and 64-bit addresses, get the
-		 * register length (width), and the register name
+		 * Generate pointer to the 64-bit address, get the register
+		 * length (width) and the register name
 		 */
 		address64 = ACPI_ADD_PTR(struct acpi_generic_address,
 					 &acpi_gbl_FADT,
 					 fadt_info_table[i].address64);
-		address32 =
-		    ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
-				 fadt_info_table[i].address32);
 		length =
 		    *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
 				  fadt_info_table[i].length);
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index f865d5a..63e8232 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -472,7 +472,7 @@
 	 * lock may block, and also since the execution of a namespace walk
 	 * must be allowed to use the interpreter.
 	 */
-	acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
+	(void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
 	status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock);
 
 	acpi_ns_delete_namespace_by_owner(owner_id);
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 919624f..0f0c64b 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -676,6 +676,7 @@
 {
 	u16 reference_count;
 	union acpi_operand_object *next_object;
+	acpi_status status;
 
 	/* Save fields from destination that we don't want to overwrite */
 
@@ -768,6 +769,28 @@
 		}
 		break;
 
+		/*
+		 * For Mutex and Event objects, we cannot simply copy the underlying
+		 * OS object. We must create a new one.
+		 */
+	case ACPI_TYPE_MUTEX:
+
+		status = acpi_os_create_mutex(&dest_desc->mutex.os_mutex);
+		if (ACPI_FAILURE(status)) {
+			return status;
+		}
+		break;
+
+	case ACPI_TYPE_EVENT:
+
+		status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
+						  &dest_desc->event.
+						  os_semaphore);
+		if (ACPI_FAILURE(status)) {
+			return status;
+		}
+		break;
+
 	default:
 		/* Nothing to do for other simple objects */
 		break;
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 38821f5..527d729 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -179,9 +179,9 @@
 	if (thread_id != acpi_gbl_prev_thread_id) {
 		if (ACPI_LV_THREADS & acpi_dbg_level) {
 			acpi_os_printf
-			    ("\n**** Context Switch from TID %lX to TID %lX ****\n\n",
-			     (unsigned long)acpi_gbl_prev_thread_id,
-			     (unsigned long)thread_id);
+			    ("\n**** Context Switch from TID %p to TID %p ****\n\n",
+			     ACPI_CAST_PTR(void, acpi_gbl_prev_thread_id),
+			     ACPI_CAST_PTR(void, thread_id));
 		}
 
 		acpi_gbl_prev_thread_id = thread_id;
@@ -194,7 +194,7 @@
 	acpi_os_printf("%8s-%04ld ", module_name, line_number);
 
 	if (ACPI_LV_THREADS & acpi_dbg_level) {
-		acpi_os_printf("[%04lX] ", (unsigned long)thread_id);
+		acpi_os_printf("[%p] ", ACPI_CAST_PTR(void, thread_id));
 	}
 
 	acpi_os_printf("[%02ld] %-22.22s: ",
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index a5ee23b..bc17103 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -75,6 +75,7 @@
 	union acpi_operand_object *handler_desc;
 	union acpi_operand_object *second_desc;
 	union acpi_operand_object *next_desc;
+	union acpi_operand_object **last_obj_ptr;
 
 	ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object);
 
@@ -223,6 +224,26 @@
 			 */
 			handler_desc = object->region.handler;
 			if (handler_desc) {
+				next_desc =
+				    handler_desc->address_space.region_list;
+				last_obj_ptr =
+				    &handler_desc->address_space.region_list;
+
+				/* Remove the region object from the handler's list */
+
+				while (next_desc) {
+					if (next_desc == object) {
+						*last_obj_ptr =
+						    next_desc->region.next;
+						break;
+					}
+
+					/* Walk the linked list of handler */
+
+					last_obj_ptr = &next_desc->region.next;
+					next_desc = next_desc->region.next;
+				}
+
 				if (handler_desc->address_space.handler_flags &
 				    ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) {
 
diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index 1c9e250..fbe78234 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -1033,11 +1033,12 @@
 {
 	va_list args;
 
-	acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
+	acpi_os_printf("ACPI Error: ");
 
 	va_start(args, format);
 	acpi_os_vprintf(format, args);
-	acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+	acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
+		       line_number);
 	va_end(args);
 }
 
@@ -1047,12 +1048,12 @@
 {
 	va_list args;
 
-	acpi_os_printf("ACPI Exception (%s-%04d): %s, ", module_name,
-		       line_number, acpi_format_exception(status));
+	acpi_os_printf("ACPI Exception: %s, ", acpi_format_exception(status));
 
 	va_start(args, format);
 	acpi_os_vprintf(format, args);
-	acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+	acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
+		       line_number);
 	va_end(args);
 }
 
@@ -1061,11 +1062,12 @@
 {
 	va_list args;
 
-	acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number);
+	acpi_os_printf("ACPI Warning: ");
 
 	va_start(args, format);
 	acpi_os_vprintf(format, args);
-	acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
+	acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name,
+		       line_number);
 	va_end(args);
 }
 
@@ -1074,10 +1076,6 @@
 {
 	va_list args;
 
-	/*
-	 * Removed module_name, line_number, and acpica version, not needed
-	 * for info output
-	 */
 	acpi_os_printf("ACPI: ");
 
 	va_start(args, format);
diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c
index 26c93a7..80bb651 100644
--- a/drivers/acpi/acpica/utmutex.c
+++ b/drivers/acpi/acpica/utmutex.c
@@ -230,17 +230,18 @@
 			if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
 				if (i == mutex_id) {
 					ACPI_ERROR((AE_INFO,
-						    "Mutex [%s] already acquired by this thread [%X]",
+						    "Mutex [%s] already acquired by this thread [%p]",
 						    acpi_ut_get_mutex_name
 						    (mutex_id),
-						    this_thread_id));
+						    ACPI_CAST_PTR(void,
+								  this_thread_id)));
 
 					return (AE_ALREADY_ACQUIRED);
 				}
 
 				ACPI_ERROR((AE_INFO,
-					    "Invalid acquire order: Thread %X owns [%s], wants [%s]",
-					    this_thread_id,
+					    "Invalid acquire order: Thread %p owns [%s], wants [%s]",
+					    ACPI_CAST_PTR(void, this_thread_id),
 					    acpi_ut_get_mutex_name(i),
 					    acpi_ut_get_mutex_name(mutex_id)));
 
@@ -251,24 +252,24 @@
 #endif
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
-			  "Thread %lX attempting to acquire Mutex [%s]\n",
-			  (unsigned long)this_thread_id,
+			  "Thread %p attempting to acquire Mutex [%s]\n",
+			  ACPI_CAST_PTR(void, this_thread_id),
 			  acpi_ut_get_mutex_name(mutex_id)));
 
 	status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
 				       ACPI_WAIT_FOREVER);
 	if (ACPI_SUCCESS(status)) {
 		ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
-				  "Thread %lX acquired Mutex [%s]\n",
-				  (unsigned long)this_thread_id,
+				  "Thread %p acquired Mutex [%s]\n",
+				  ACPI_CAST_PTR(void, this_thread_id),
 				  acpi_ut_get_mutex_name(mutex_id)));
 
 		acpi_gbl_mutex_info[mutex_id].use_count++;
 		acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id;
 	} else {
 		ACPI_EXCEPTION((AE_INFO, status,
-				"Thread %lX could not acquire Mutex [%X]",
-				(unsigned long)this_thread_id, mutex_id));
+				"Thread %p could not acquire Mutex [%X]",
+				ACPI_CAST_PTR(void, this_thread_id), mutex_id));
 	}
 
 	return (status);
@@ -293,9 +294,8 @@
 	ACPI_FUNCTION_NAME(ut_release_mutex);
 
 	this_thread_id = acpi_os_get_thread_id();
-	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
-			  "Thread %lX releasing Mutex [%s]\n",
-			  (unsigned long)this_thread_id,
+	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %p releasing Mutex [%s]\n",
+			  ACPI_CAST_PTR(void, this_thread_id),
 			  acpi_ut_get_mutex_name(mutex_id)));
 
 	if (mutex_id > ACPI_MAX_MUTEX) {
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b22cec9..c7a527c 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -38,7 +38,6 @@
 #include <linux/hdreg.h>
 #include <linux/spinlock.h>
 #include <linux/compat.h>
-#include <linux/blktrace_api.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 60de5a0..f703f54 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -22,13 +22,12 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
+#include <linux/mg_disk.h>
 
 #define MG_RES_SEC (CONFIG_MG_DISK_RES << 1)
 
 /* name for block device */
 #define MG_DISK_NAME "mgd"
-/* name for platform device */
-#define MG_DEV_NAME "mg_disk"
 
 #define MG_DISK_MAJ 0
 #define MG_DISK_MAX_PART 16
@@ -103,33 +102,8 @@
 #define MG_TMAX_SWRST_TO_RDY	500
 #define MG_TMAX_RSTOUT		3000
 
-/* device attribution */
-/* use mflash as boot device */
-#define MG_BOOT_DEV		(1 << 0)
-/* use mflash as storage device */
-#define MG_STORAGE_DEV		(1 << 1)
-/* same as MG_STORAGE_DEV, but bootloader already done reset sequence */
-#define MG_STORAGE_DEV_SKIP_RST	(1 << 2)
-
 #define MG_DEV_MASK (MG_BOOT_DEV | MG_STORAGE_DEV | MG_STORAGE_DEV_SKIP_RST)
 
-/* names of GPIO resource */
-#define MG_RST_PIN	"mg_rst"
-/* except MG_BOOT_DEV, reset-out pin should be assigned */
-#define MG_RSTOUT_PIN	"mg_rstout"
-
-/* private driver data */
-struct mg_drv_data {
-	/* disk resource */
-	u32 use_polling;
-
-	/* device attribution */
-	u32 dev_attr;
-
-	/* internally used */
-	struct mg_host *host;
-};
-
 /* main structure for mflash driver */
 struct mg_host {
 	struct device *dev;
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index 1299db1..34cbb7f 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -120,7 +120,7 @@
 static int ps3disk_submit_request_sg(struct ps3_storage_device *dev,
 				     struct request *req)
 {
-	struct ps3disk_private *priv = dev_get_drvdata(&dev->sbd.core);
+	struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
 	int write = rq_data_dir(req), res;
 	const char *op = write ? "write" : "read";
 	u64 start_sector, sectors;
@@ -168,7 +168,7 @@
 static int ps3disk_submit_flush_request(struct ps3_storage_device *dev,
 					struct request *req)
 {
-	struct ps3disk_private *priv = dev_get_drvdata(&dev->sbd.core);
+	struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
 	u64 res;
 
 	dev_dbg(&dev->sbd.core, "%s:%u: flush request\n", __func__, __LINE__);
@@ -213,7 +213,7 @@
 static void ps3disk_request(struct request_queue *q)
 {
 	struct ps3_storage_device *dev = q->queuedata;
-	struct ps3disk_private *priv = dev_get_drvdata(&dev->sbd.core);
+	struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
 
 	if (priv->req) {
 		dev_dbg(&dev->sbd.core, "%s:%u busy\n", __func__, __LINE__);
@@ -245,7 +245,7 @@
 		return IRQ_HANDLED;
 	}
 
-	priv = dev_get_drvdata(&dev->sbd.core);
+	priv = ps3_system_bus_get_drvdata(&dev->sbd);
 	req = priv->req;
 	if (!req) {
 		dev_dbg(&dev->sbd.core,
@@ -364,7 +364,7 @@
 
 static int ps3disk_identify(struct ps3_storage_device *dev)
 {
-	struct ps3disk_private *priv = dev_get_drvdata(&dev->sbd.core);
+	struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
 	struct lv1_ata_cmnd_block ata_cmnd;
 	u16 *id = dev->bounce_buf;
 	u64 res;
@@ -445,7 +445,7 @@
 		goto fail;
 	}
 
-	dev_set_drvdata(&dev->sbd.core, priv);
+	ps3_system_bus_set_drvdata(_dev, priv);
 	spin_lock_init(&priv->lock);
 
 	dev->bounce_size = BOUNCE_SIZE;
@@ -523,7 +523,7 @@
 	kfree(dev->bounce_buf);
 fail_free_priv:
 	kfree(priv);
-	dev_set_drvdata(&dev->sbd.core, NULL);
+	ps3_system_bus_set_drvdata(_dev, NULL);
 fail:
 	mutex_lock(&ps3disk_mask_mutex);
 	__clear_bit(devidx, &ps3disk_mask);
@@ -534,7 +534,7 @@
 static int ps3disk_remove(struct ps3_system_bus_device *_dev)
 {
 	struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core);
-	struct ps3disk_private *priv = dev_get_drvdata(&dev->sbd.core);
+	struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
 
 	mutex_lock(&ps3disk_mask_mutex);
 	__clear_bit(MINOR(disk_devt(priv->gendisk)) / PS3DISK_MINORS,
@@ -548,7 +548,7 @@
 	ps3stor_teardown(dev);
 	kfree(dev->bounce_buf);
 	kfree(priv);
-	dev_set_drvdata(&dev->sbd.core, NULL);
+	ps3_system_bus_set_drvdata(_dev, NULL);
 	return 0;
 }
 
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 8ecf1e0..095f97e 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -14,8 +14,10 @@
 #include <linux/seq_file.h>
 
 #include <asm/firmware.h>
+#include <asm/iommu.h>
 #include <asm/lv1call.h>
 #include <asm/ps3.h>
+#include <asm/ps3gpu.h>
 
 
 #define DEVICE_NAME		"ps3vram"
@@ -45,8 +47,6 @@
 #define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN	0x0000030c
 #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY	0x00000104
 
-#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
-
 #define CACHE_PAGE_PRESENT 1
 #define CACHE_PAGE_DIRTY   2
 
@@ -72,8 +72,7 @@
 	u64 memory_handle;
 	u64 context_handle;
 	u32 *ctrl;
-	u32 *reports;
-	u8 __iomem *ddr_base;
+	void *reports;
 	u8 *xdr_buf;
 
 	u32 *fifo_base;
@@ -81,8 +80,8 @@
 
 	struct ps3vram_cache cache;
 
-	/* Used to serialize cache/DMA operations */
-	struct mutex lock;
+	spinlock_t lock;	/* protecting list of bios */
+	struct bio_list list;
 };
 
 
@@ -103,15 +102,15 @@
 module_param(size, charp, 0);
 MODULE_PARM_DESC(size, "memory size");
 
-static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
+static u32 *ps3vram_get_notifier(void *reports, int notifier)
 {
-	return (void *)reports + DMA_NOTIFIER_OFFSET_BASE +
+	return reports + DMA_NOTIFIER_OFFSET_BASE +
 	       DMA_NOTIFIER_SIZE * notifier;
 }
 
 static void ps3vram_notifier_reset(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
 	int i;
 
@@ -122,7 +121,7 @@
 static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev,
 				 unsigned int timeout_ms)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
 	unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
 
@@ -137,7 +136,7 @@
 
 static void ps3vram_init_ring(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
 	priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
@@ -146,7 +145,7 @@
 static int ps3vram_wait_ring(struct ps3_system_bus_device *dev,
 			     unsigned int timeout_ms)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
 
 	do {
@@ -175,7 +174,7 @@
 
 static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	int status;
 
 	ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
@@ -183,20 +182,17 @@
 	priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
 
 	/* asking the HV for a blit will kick the FIFO */
-	status = lv1_gpu_context_attribute(priv->context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
-					   0, 0, 0);
+	status = lv1_gpu_fb_blit(priv->context_handle, 0, 0, 0, 0);
 	if (status)
-		dev_err(&dev->core,
-			"%s: lv1_gpu_context_attribute failed %d\n", __func__,
-			status);
+		dev_err(&dev->core, "%s: lv1_gpu_fb_blit failed %d\n",
+			__func__, status);
 
 	priv->fifo_ptr = priv->fifo_base;
 }
 
 static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	int status;
 
 	mutex_lock(&ps3_gpu_mutex);
@@ -205,13 +201,10 @@
 			       (priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
 
 	/* asking the HV for a blit will kick the FIFO */
-	status = lv1_gpu_context_attribute(priv->context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
-					   0, 0, 0);
+	status = lv1_gpu_fb_blit(priv->context_handle, 0, 0, 0, 0);
 	if (status)
-		dev_err(&dev->core,
-			"%s: lv1_gpu_context_attribute failed %d\n", __func__,
-			status);
+		dev_err(&dev->core, "%s: lv1_gpu_fb_blit failed %d\n",
+			__func__, status);
 
 	if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
 	    FIFO_SIZE - 1024) {
@@ -225,7 +218,7 @@
 
 static void ps3vram_bind(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
 	ps3vram_out_ring(priv, 0x31337303);
@@ -248,7 +241,7 @@
 			  unsigned int src_offset, unsigned int dst_offset,
 			  int len, int count)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	ps3vram_begin_ring(priv, UPLOAD_SUBCH,
 			   NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
@@ -280,7 +273,7 @@
 			    unsigned int src_offset, unsigned int dst_offset,
 			    int len, int count)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
 			   NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
@@ -310,7 +303,7 @@
 
 static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct ps3vram_cache *cache = &priv->cache;
 
 	if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY))
@@ -332,7 +325,7 @@
 static void ps3vram_cache_load(struct ps3_system_bus_device *dev, int entry,
 			       unsigned int address)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct ps3vram_cache *cache = &priv->cache;
 
 	dev_dbg(&dev->core, "Fetching %d: 0x%08x\n", entry, address);
@@ -352,7 +345,7 @@
 
 static void ps3vram_cache_flush(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct ps3vram_cache *cache = &priv->cache;
 	int i;
 
@@ -366,7 +359,7 @@
 static unsigned int ps3vram_cache_match(struct ps3_system_bus_device *dev,
 					loff_t address)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct ps3vram_cache *cache = &priv->cache;
 	unsigned int base;
 	unsigned int offset;
@@ -400,7 +393,7 @@
 
 static int ps3vram_cache_init(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	priv->cache.page_count = CACHE_PAGE_COUNT;
 	priv->cache.page_size = CACHE_PAGE_SIZE;
@@ -419,7 +412,7 @@
 
 static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	ps3vram_cache_flush(dev);
 	kfree(priv->cache.tags);
@@ -428,7 +421,7 @@
 static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
 			size_t len, size_t *retlen, u_char *buf)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	unsigned int cached, count;
 
 	dev_dbg(&dev->core, "%s: from=0x%08x len=0x%zx\n", __func__,
@@ -449,8 +442,6 @@
 		offset = (unsigned int) (from & (priv->cache.page_size - 1));
 		avail  = priv->cache.page_size - offset;
 
-		mutex_lock(&priv->lock);
-
 		entry = ps3vram_cache_match(dev, from);
 		cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
 
@@ -462,8 +453,6 @@
 			avail = count;
 		memcpy(buf, priv->xdr_buf + cached, avail);
 
-		mutex_unlock(&priv->lock);
-
 		buf += avail;
 		count -= avail;
 		from += avail;
@@ -476,7 +465,7 @@
 static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
 			 size_t len, size_t *retlen, const u_char *buf)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	unsigned int cached, count;
 
 	if (to >= priv->size)
@@ -494,8 +483,6 @@
 		offset = (unsigned int) (to & (priv->cache.page_size - 1));
 		avail  = priv->cache.page_size - offset;
 
-		mutex_lock(&priv->lock);
-
 		entry = ps3vram_cache_match(dev, to);
 		cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
 
@@ -509,8 +496,6 @@
 
 		priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
 
-		mutex_unlock(&priv->lock);
-
 		buf += avail;
 		count -= avail;
 		to += avail;
@@ -543,28 +528,26 @@
 
 static void __devinit ps3vram_proc_init(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	struct proc_dir_entry *pde;
 
-	pde = proc_create(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops);
-	if (!pde) {
+	pde = proc_create_data(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops,
+			       priv);
+	if (!pde)
 		dev_warn(&dev->core, "failed to create /proc entry\n");
-		return;
-	}
-	pde->data = priv;
 }
 
-static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
+static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
+				  struct bio *bio)
 {
-	struct ps3_system_bus_device *dev = q->queuedata;
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	int write = bio_data_dir(bio) == WRITE;
 	const char *op = write ? "write" : "read";
 	loff_t offset = bio->bi_sector << 9;
 	int error = 0;
 	struct bio_vec *bvec;
 	unsigned int i;
-
-	dev_dbg(&dev->core, "%s\n", __func__);
+	struct bio *next;
 
 	bio_for_each_segment(bvec, bio, i) {
 		/* PS3 is ppc64, so we don't handle highmem */
@@ -585,6 +568,7 @@
 
 		if (retlen != len) {
 			dev_err(&dev->core, "Short %s\n", op);
+			error = -EIO;
 			goto out;
 		}
 
@@ -594,7 +578,35 @@
 	dev_dbg(&dev->core, "%s completed\n", op);
 
 out:
+	spin_lock_irq(&priv->lock);
+	bio_list_pop(&priv->list);
+	next = bio_list_peek(&priv->list);
+	spin_unlock_irq(&priv->lock);
+
 	bio_endio(bio, error);
+	return next;
+}
+
+static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
+{
+	struct ps3_system_bus_device *dev = q->queuedata;
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
+	int busy;
+
+	dev_dbg(&dev->core, "%s\n", __func__);
+
+	spin_lock_irq(&priv->lock);
+	busy = !bio_list_empty(&priv->list);
+	bio_list_add(&priv->list, bio);
+	spin_unlock_irq(&priv->lock);
+
+	if (busy)
+		return 0;
+
+	do {
+		bio = ps3vram_do_bio(dev, bio);
+	} while (bio);
+
 	return 0;
 }
 
@@ -604,8 +616,8 @@
 	int error, status;
 	struct request_queue *queue;
 	struct gendisk *gendisk;
-	u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size,
-	    reports_size;
+	u64 ddr_size, ddr_lpar, ctrl_lpar, info_lpar, reports_lpar,
+	    reports_size, xdr_lpar;
 	char *rest;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -614,10 +626,9 @@
 		goto fail;
 	}
 
-	mutex_init(&priv->lock);
-	dev_set_drvdata(&dev->core, priv);
-
-	priv = dev_get_drvdata(&dev->core);
+	spin_lock_init(&priv->lock);
+	bio_list_init(&priv->list);
+	ps3_system_bus_set_drvdata(dev, priv);
 
 	/* Allocate XDR buffer (1MiB aligned) */
 	priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
@@ -636,7 +647,7 @@
 	if (ps3_open_hv_device(dev)) {
 		dev_err(&dev->core, "ps3_open_hv_device failed\n");
 		error = -EAGAIN;
-		goto out_close_gpu;
+		goto out_free_xdr_buf;
 	}
 
 	/* Request memory */
@@ -660,7 +671,7 @@
 		dev_err(&dev->core, "lv1_gpu_memory_allocate failed %d\n",
 			status);
 		error = -ENOMEM;
-		goto out_free_xdr_buf;
+		goto out_close_gpu;
 	}
 
 	/* Request context */
@@ -676,9 +687,11 @@
 	}
 
 	/* Map XDR buffer to RSX */
+	xdr_lpar = ps3_mm_phys_to_lpar(__pa(priv->xdr_buf));
 	status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
-				       ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
-				       XDR_BUF_SIZE, 0);
+				       xdr_lpar, XDR_BUF_SIZE,
+				       CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
+				       CBE_IOPTE_M);
 	if (status) {
 		dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n",
 			status);
@@ -686,19 +699,11 @@
 		goto out_free_context;
 	}
 
-	priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
-
-	if (!priv->ddr_base) {
-		dev_err(&dev->core, "ioremap DDR failed\n");
-		error = -ENOMEM;
-		goto out_free_context;
-	}
-
 	priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
 	if (!priv->ctrl) {
 		dev_err(&dev->core, "ioremap CTRL failed\n");
 		error = -ENOMEM;
-		goto out_unmap_vram;
+		goto out_unmap_context;
 	}
 
 	priv->reports = ioremap(reports_lpar, reports_size);
@@ -775,8 +780,9 @@
 	iounmap(priv->reports);
 out_unmap_ctrl:
 	iounmap(priv->ctrl);
-out_unmap_vram:
-	iounmap(priv->ddr_base);
+out_unmap_context:
+	lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, xdr_lpar,
+			      XDR_BUF_SIZE, CBE_IOPTE_M);
 out_free_context:
 	lv1_gpu_context_free(priv->context_handle);
 out_free_memory:
@@ -787,14 +793,14 @@
 	free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
 fail_free_priv:
 	kfree(priv);
-	dev_set_drvdata(&dev->core, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 fail:
 	return error;
 }
 
 static int ps3vram_remove(struct ps3_system_bus_device *dev)
 {
-	struct ps3vram_priv *priv = dev_get_drvdata(&dev->core);
+	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 
 	del_gendisk(priv->gendisk);
 	put_disk(priv->gendisk);
@@ -803,13 +809,15 @@
 	ps3vram_cache_cleanup(dev);
 	iounmap(priv->reports);
 	iounmap(priv->ctrl);
-	iounmap(priv->ddr_base);
+	lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
+			      ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
+			      XDR_BUF_SIZE, CBE_IOPTE_M);
 	lv1_gpu_context_free(priv->context_handle);
 	lv1_gpu_memory_free(priv->memory_handle);
 	ps3_close_hv_device(dev);
 	free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
 	kfree(priv);
-	dev_set_drvdata(&dev->core, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 	return 0;
 }
 
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index 54481a8..86105ef 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -4,7 +4,7 @@
  * This HVC device driver provides terminal access using
  * z/VM IUCV communication paths.
  *
- * Copyright IBM Corp. 2008
+ * Copyright IBM Corp. 2008, 2009
  *
  * Author(s):	Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
  */
@@ -15,6 +15,7 @@
 #include <asm/ebcdic.h>
 #include <linux/ctype.h>
 #include <linux/delay.h>
+#include <linux/device.h>
 #include <linux/init.h>
 #include <linux/mempool.h>
 #include <linux/moduleparam.h>
@@ -74,6 +75,7 @@
 	wait_queue_head_t	sndbuf_waitq;	/* wait for send completion */
 	struct list_head	tty_outqueue;	/* outgoing IUCV messages */
 	struct list_head	tty_inqueue;	/* incoming IUCV messages */
+	struct device		*dev;		/* device structure */
 };
 
 struct iucv_tty_buffer {
@@ -542,7 +544,68 @@
 
 	if (sync_wait)
 		wait_event_timeout(priv->sndbuf_waitq,
-				   tty_outqueue_empty(priv), HZ);
+				   tty_outqueue_empty(priv), HZ/10);
+}
+
+/**
+ * hvc_iucv_hangup() - Sever IUCV path and schedule hvc tty hang up
+ * @priv:	Pointer to hvc_iucv_private structure
+ *
+ * This routine severs an existing IUCV communication path and hangs
+ * up the underlying HVC terminal device.
+ * The hang-up occurs only if an IUCV communication path is established;
+ * otherwise there is no need to hang up the terminal device.
+ *
+ * The IUCV HVC hang-up is separated into two steps:
+ * 1. After the IUCV path has been severed, the iucv_state is set to
+ *    IUCV_SEVERED.
+ * 2. Later, when the HVC thread calls hvc_iucv_get_chars(), the
+ *    IUCV_SEVERED state causes the tty hang-up in the HVC layer.
+ *
+ * If the tty has not yet been opened, clean up the hvc_iucv_private
+ * structure to allow re-connects.
+ * If the tty has been opened, let get_chars() return -EPIPE to signal
+ * the HVC layer to hang up the tty and, if so, wake up the HVC thread
+ * to call get_chars()...
+ *
+ * Special notes on hanging up a HVC terminal instantiated as console:
+ * Hang-up:	1. do_tty_hangup() replaces file ops (= hung_up_tty_fops)
+ *		2. do_tty_hangup() calls tty->ops->close() for console_filp
+ *			=> no hangup notifier is called by HVC (default)
+ *		2. hvc_close() returns because of tty_hung_up_p(filp)
+ *			=> no delete notifier is called!
+ * Finally, the back-end is not being notified, thus, the tty session is
+ * kept active (TTY_OPEN) to be ready for re-connects.
+ *
+ * Locking:	spin_lock(&priv->lock) w/o disabling bh
+ */
+static void hvc_iucv_hangup(struct hvc_iucv_private *priv)
+{
+	struct iucv_path *path;
+
+	path = NULL;
+	spin_lock(&priv->lock);
+	if (priv->iucv_state == IUCV_CONNECTED) {
+		path = priv->path;
+		priv->path = NULL;
+		priv->iucv_state = IUCV_SEVERED;
+		if (priv->tty_state == TTY_CLOSED)
+			hvc_iucv_cleanup(priv);
+		else
+			/* console is special (see above) */
+			if (priv->is_console) {
+				hvc_iucv_cleanup(priv);
+				priv->tty_state = TTY_OPENED;
+			} else
+				hvc_kick();
+	}
+	spin_unlock(&priv->lock);
+
+	/* finally sever path (outside of priv->lock due to lock ordering) */
+	if (path) {
+		iucv_path_sever(path, NULL);
+		iucv_path_free(path);
+	}
 }
 
 /**
@@ -735,11 +798,8 @@
  * @ipuser:	User specified data for this path
  *		(AF_IUCV: port/service name and originator port)
  *
- * The function also severs the path (as required by the IUCV protocol) and
- * sets the iucv state to IUCV_SEVERED for the associated struct
- * hvc_iucv_private instance. Later, the IUCV_SEVERED state triggers a tty
- * hangup (hvc_iucv_get_chars() / hvc_iucv_write()).
- * If tty portion of the HVC is closed, clean up the outqueue.
+ * This function calls the hvc_iucv_hangup() function for the
+ * respective IUCV HVC terminal.
  *
  * Locking:	struct hvc_iucv_private->lock
  */
@@ -747,33 +807,7 @@
 {
 	struct hvc_iucv_private *priv = path->private;
 
-	spin_lock(&priv->lock);
-	priv->iucv_state = IUCV_SEVERED;
-
-	/* If the tty has not yet been opened, clean up the hvc_iucv_private
-	 * structure to allow re-connects.
-	 * This is also done for our console device because console hangups
-	 * are handled specially and no notifier is called by HVC.
-	 * The tty session is active (TTY_OPEN) and ready for re-connects...
-	 *
-	 * If it has been opened, let get_chars() return -EPIPE to signal the
-	 * HVC layer to hang up the tty.
-	 * If so, we need to wake up the HVC thread to call get_chars()...
-	 */
-	priv->path = NULL;
-	if (priv->tty_state == TTY_CLOSED)
-		hvc_iucv_cleanup(priv);
-	else
-		if (priv->is_console) {
-			hvc_iucv_cleanup(priv);
-			priv->tty_state = TTY_OPENED;
-		} else
-			hvc_kick();
-	spin_unlock(&priv->lock);
-
-	/* finally sever path (outside of priv->lock due to lock ordering) */
-	iucv_path_sever(path, ipuser);
-	iucv_path_free(path);
+	hvc_iucv_hangup(priv);
 }
 
 /**
@@ -853,6 +887,37 @@
 	destroy_tty_buffer_list(&list_remove);
 }
 
+/**
+ * hvc_iucv_pm_freeze() - Freeze PM callback
+ * @dev:	IUVC HVC terminal device
+ *
+ * Sever an established IUCV communication path and
+ * trigger a hang-up of the underlying HVC terminal.
+ */
+static int hvc_iucv_pm_freeze(struct device *dev)
+{
+	struct hvc_iucv_private *priv = dev_get_drvdata(dev);
+
+	local_bh_disable();
+	hvc_iucv_hangup(priv);
+	local_bh_enable();
+
+	return 0;
+}
+
+/**
+ * hvc_iucv_pm_restore_thaw() - Thaw and restore PM callback
+ * @dev:	IUVC HVC terminal device
+ *
+ * Wake up the HVC thread to trigger hang-up and respective
+ * HVC back-end notifier invocations.
+ */
+static int hvc_iucv_pm_restore_thaw(struct device *dev)
+{
+	hvc_kick();
+	return 0;
+}
+
 
 /* HVC operations */
 static struct hv_ops hvc_iucv_ops = {
@@ -863,6 +928,20 @@
 	.notifier_hangup = hvc_iucv_notifier_hangup,
 };
 
+/* Suspend / resume device operations */
+static struct dev_pm_ops hvc_iucv_pm_ops = {
+	.freeze	  = hvc_iucv_pm_freeze,
+	.thaw	  = hvc_iucv_pm_restore_thaw,
+	.restore  = hvc_iucv_pm_restore_thaw,
+};
+
+/* IUCV HVC device driver */
+static struct device_driver hvc_iucv_driver = {
+	.name = KMSG_COMPONENT,
+	.bus  = &iucv_bus,
+	.pm   = &hvc_iucv_pm_ops,
+};
+
 /**
  * hvc_iucv_alloc() - Allocates a new struct hvc_iucv_private instance
  * @id:			hvc_iucv_table index
@@ -897,14 +976,12 @@
 	/* set console flag */
 	priv->is_console = is_console;
 
-	/* finally allocate hvc */
+	/* allocate hvc device */
 	priv->hvc = hvc_alloc(HVC_IUCV_MAGIC + id, /*		  PAGE_SIZE */
 			      HVC_IUCV_MAGIC + id, &hvc_iucv_ops, 256);
 	if (IS_ERR(priv->hvc)) {
 		rc = PTR_ERR(priv->hvc);
-		free_page((unsigned long) priv->sndbuf);
-		kfree(priv);
-		return rc;
+		goto out_error_hvc;
 	}
 
 	/* notify HVC thread instead of using polling */
@@ -915,8 +992,45 @@
 	memcpy(priv->srv_name, name, 8);
 	ASCEBC(priv->srv_name, 8);
 
+	/* create and setup device */
+	priv->dev = kzalloc(sizeof(*priv->dev), GFP_KERNEL);
+	if (!priv->dev) {
+		rc = -ENOMEM;
+		goto out_error_dev;
+	}
+	dev_set_name(priv->dev, "hvc_iucv%d", id);
+	dev_set_drvdata(priv->dev, priv);
+	priv->dev->bus = &iucv_bus;
+	priv->dev->parent = iucv_root;
+	priv->dev->driver = &hvc_iucv_driver;
+	priv->dev->release = (void (*)(struct device *)) kfree;
+	rc = device_register(priv->dev);
+	if (rc) {
+		kfree(priv->dev);
+		goto out_error_dev;
+	}
+
 	hvc_iucv_table[id] = priv;
 	return 0;
+
+out_error_dev:
+	hvc_remove(priv->hvc);
+out_error_hvc:
+	free_page((unsigned long) priv->sndbuf);
+	kfree(priv);
+
+	return rc;
+}
+
+/**
+ * hvc_iucv_destroy() - Destroy and free hvc_iucv_private instances
+ */
+static void __init hvc_iucv_destroy(struct hvc_iucv_private *priv)
+{
+	hvc_remove(priv->hvc);
+	device_unregister(priv->dev);
+	free_page((unsigned long) priv->sndbuf);
+	kfree(priv);
 }
 
 /**
@@ -1109,6 +1223,11 @@
 		goto out_error;
 	}
 
+	/* register IUCV HVC device driver */
+	rc = driver_register(&hvc_iucv_driver);
+	if (rc)
+		goto out_error;
+
 	/* parse hvc_iucv_allow string and create z/VM user ID filter list */
 	if (hvc_iucv_filter_string) {
 		rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);
@@ -1183,15 +1302,14 @@
 	iucv_unregister(&hvc_iucv_handler, 0);
 out_error_hvc:
 	for (i = 0; i < hvc_iucv_devices; i++)
-		if (hvc_iucv_table[i]) {
-			if (hvc_iucv_table[i]->hvc)
-				hvc_remove(hvc_iucv_table[i]->hvc);
-			kfree(hvc_iucv_table[i]);
-		}
+		if (hvc_iucv_table[i])
+			hvc_iucv_destroy(hvc_iucv_table[i]);
 out_error_memory:
 	mempool_destroy(hvc_iucv_mempool);
 	kmem_cache_destroy(hvc_iucv_buffer_cache);
 out_error:
+	if (hvc_iucv_filter)
+		kfree(hvc_iucv_filter);
 	hvc_iucv_devices = 0; /* ensure that we do not provide any device */
 	return rc;
 }
diff --git a/drivers/char/ps3flash.c b/drivers/char/ps3flash.c
index afbe456..f424d39 100644
--- a/drivers/char/ps3flash.c
+++ b/drivers/char/ps3flash.c
@@ -33,48 +33,64 @@
 
 struct ps3flash_private {
 	struct mutex mutex;	/* Bounce buffer mutex */
+	u64 chunk_sectors;
+	int tag;		/* Start sector of buffer, -1 if invalid */
+	bool dirty;
 };
 
 static struct ps3_storage_device *ps3flash_dev;
 
-static ssize_t ps3flash_read_write_sectors(struct ps3_storage_device *dev,
-					   u64 lpar, u64 start_sector,
-					   u64 sectors, int write)
+static int ps3flash_read_write_sectors(struct ps3_storage_device *dev,
+				       u64 start_sector, int write)
 {
-	u64 res = ps3stor_read_write_sectors(dev, lpar, start_sector, sectors,
+	struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
+	u64 res = ps3stor_read_write_sectors(dev, dev->bounce_lpar,
+					     start_sector, priv->chunk_sectors,
 					     write);
 	if (res) {
 		dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__,
 			__LINE__, write ? "write" : "read", res);
 		return -EIO;
 	}
-	return sectors;
+	return 0;
 }
 
-static ssize_t ps3flash_read_sectors(struct ps3_storage_device *dev,
-				     u64 start_sector, u64 sectors,
-				     unsigned int sector_offset)
+static int ps3flash_writeback(struct ps3_storage_device *dev)
 {
-	u64 max_sectors, lpar;
+	struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
+	int res;
 
-	max_sectors = dev->bounce_size / dev->blk_size;
-	if (sectors > max_sectors) {
-		dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %llu\n",
-			__func__, __LINE__, max_sectors);
-		sectors = max_sectors;
-	}
+	if (!priv->dirty || priv->tag < 0)
+		return 0;
 
-	lpar = dev->bounce_lpar + sector_offset * dev->blk_size;
-	return ps3flash_read_write_sectors(dev, lpar, start_sector, sectors,
-					   0);
+	res = ps3flash_read_write_sectors(dev, priv->tag, 1);
+	if (res)
+		return res;
+
+	priv->dirty = false;
+	return 0;
 }
 
-static ssize_t ps3flash_write_chunk(struct ps3_storage_device *dev,
-				    u64 start_sector)
+static int ps3flash_fetch(struct ps3_storage_device *dev, u64 start_sector)
 {
-       u64 sectors = dev->bounce_size / dev->blk_size;
-       return ps3flash_read_write_sectors(dev, dev->bounce_lpar, start_sector,
-					  sectors, 1);
+	struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
+	int res;
+
+	if (start_sector == priv->tag)
+		return 0;
+
+	res = ps3flash_writeback(dev);
+	if (res)
+		return res;
+
+	priv->tag = -1;
+
+	res = ps3flash_read_write_sectors(dev, start_sector, 0);
+	if (res)
+		return res;
+
+	priv->tag = start_sector;
+	return 0;
 }
 
 static loff_t ps3flash_llseek(struct file *file, loff_t offset, int origin)
@@ -104,18 +120,19 @@
 	return res;
 }
 
-static ssize_t ps3flash_read(struct file *file, char __user *buf, size_t count,
-			     loff_t *pos)
+static ssize_t ps3flash_read(char __user *userbuf, void *kernelbuf,
+			     size_t count, loff_t *pos)
 {
 	struct ps3_storage_device *dev = ps3flash_dev;
-	struct ps3flash_private *priv = dev->sbd.core.driver_data;
-	u64 size, start_sector, end_sector, offset;
-	ssize_t sectors_read;
+	struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
+	u64 size, sector, offset;
+	int res;
 	size_t remaining, n;
+	const void *src;
 
 	dev_dbg(&dev->sbd.core,
-		"%s:%u: Reading %zu bytes at position %lld to user 0x%p\n",
-		__func__, __LINE__, count, *pos, buf);
+		"%s:%u: Reading %zu bytes at position %lld to U0x%p/K0x%p\n",
+		__func__, __LINE__, count, *pos, userbuf, kernelbuf);
 
 	size = dev->regions[dev->region_idx].size*dev->blk_size;
 	if (*pos >= size || !count)
@@ -128,156 +145,40 @@
 		count = size - *pos;
 	}
 
-	start_sector = *pos / dev->blk_size;
-	offset = *pos % dev->blk_size;
-	end_sector = DIV_ROUND_UP(*pos + count, dev->blk_size);
-
-	remaining = count;
-	do {
-		mutex_lock(&priv->mutex);
-
-		sectors_read = ps3flash_read_sectors(dev, start_sector,
-						     end_sector-start_sector,
-						     0);
-		if (sectors_read < 0) {
-			mutex_unlock(&priv->mutex);
-			goto fail;
-		}
-
-		n = min_t(u64, remaining, sectors_read*dev->blk_size-offset);
-		dev_dbg(&dev->sbd.core,
-			"%s:%u: copy %lu bytes from 0x%p to user 0x%p\n",
-			__func__, __LINE__, n, dev->bounce_buf+offset, buf);
-		if (copy_to_user(buf, dev->bounce_buf+offset, n)) {
-			mutex_unlock(&priv->mutex);
-			sectors_read = -EFAULT;
-			goto fail;
-		}
-
-		mutex_unlock(&priv->mutex);
-
-		*pos += n;
-		buf += n;
-		remaining -= n;
-		start_sector += sectors_read;
-		offset = 0;
-	} while (remaining > 0);
-
-	return count;
-
-fail:
-	return sectors_read;
-}
-
-static ssize_t ps3flash_write(struct file *file, const char __user *buf,
-			      size_t count, loff_t *pos)
-{
-	struct ps3_storage_device *dev = ps3flash_dev;
-	struct ps3flash_private *priv = dev->sbd.core.driver_data;
-	u64 size, chunk_sectors, start_write_sector, end_write_sector,
-	    end_read_sector, start_read_sector, head, tail, offset;
-	ssize_t res;
-	size_t remaining, n;
-	unsigned int sec_off;
-
-	dev_dbg(&dev->sbd.core,
-		"%s:%u: Writing %zu bytes at position %lld from user 0x%p\n",
-		__func__, __LINE__, count, *pos, buf);
-
-	size = dev->regions[dev->region_idx].size*dev->blk_size;
-	if (*pos >= size || !count)
-		return 0;
-
-	if (*pos + count > size) {
-		dev_dbg(&dev->sbd.core,
-			"%s:%u Truncating count from %zu to %llu\n", __func__,
-			__LINE__, count, size - *pos);
-		count = size - *pos;
-	}
-
-	chunk_sectors = dev->bounce_size / dev->blk_size;
-
-	start_write_sector = *pos / dev->bounce_size * chunk_sectors;
+	sector = *pos / dev->bounce_size * priv->chunk_sectors;
 	offset = *pos % dev->bounce_size;
-	end_write_sector = DIV_ROUND_UP(*pos + count, dev->bounce_size) *
-			   chunk_sectors;
-
-	end_read_sector = DIV_ROUND_UP(*pos, dev->blk_size);
-	start_read_sector = (*pos + count) / dev->blk_size;
-
-	/*
-	 * As we have to write in 256 KiB chunks, while we can read in blk_size
-	 * (usually 512 bytes) chunks, we perform the following steps:
-	 *   1. Read from start_write_sector to end_read_sector ("head")
-	 *   2. Read from start_read_sector to end_write_sector ("tail")
-	 *   3. Copy data to buffer
-	 *   4. Write from start_write_sector to end_write_sector
-	 * All of this is complicated by using only one 256 KiB bounce buffer.
-	 */
-
-	head = end_read_sector - start_write_sector;
-	tail = end_write_sector - start_read_sector;
 
 	remaining = count;
 	do {
+		n = min_t(u64, remaining, dev->bounce_size - offset);
+		src = dev->bounce_buf + offset;
+
 		mutex_lock(&priv->mutex);
 
-		if (end_read_sector >= start_read_sector) {
-			/* Merge head and tail */
-			dev_dbg(&dev->sbd.core,
-				"Merged head and tail: %llu sectors at %llu\n",
-				chunk_sectors, start_write_sector);
-			res = ps3flash_read_sectors(dev, start_write_sector,
-						    chunk_sectors, 0);
-			if (res < 0)
-				goto fail;
-		} else {
-			if (head) {
-				/* Read head */
-				dev_dbg(&dev->sbd.core,
-					"head: %llu sectors at %llu\n", head,
-					start_write_sector);
-				res = ps3flash_read_sectors(dev,
-							    start_write_sector,
-							    head, 0);
-				if (res < 0)
-					goto fail;
-			}
-			if (start_read_sector <
-			    start_write_sector+chunk_sectors) {
-				/* Read tail */
-				dev_dbg(&dev->sbd.core,
-					"tail: %llu sectors at %llu\n", tail,
-					start_read_sector);
-				sec_off = start_read_sector-start_write_sector;
-				res = ps3flash_read_sectors(dev,
-							    start_read_sector,
-							    tail, sec_off);
-				if (res < 0)
-					goto fail;
-			}
-		}
+		res = ps3flash_fetch(dev, sector);
+		if (res)
+			goto fail;
 
-		n = min_t(u64, remaining, dev->bounce_size-offset);
 		dev_dbg(&dev->sbd.core,
-			"%s:%u: copy %lu bytes from user 0x%p to 0x%p\n",
-			__func__, __LINE__, n, buf, dev->bounce_buf+offset);
-		if (copy_from_user(dev->bounce_buf+offset, buf, n)) {
-			res = -EFAULT;
-			goto fail;
+			"%s:%u: copy %lu bytes from 0x%p to U0x%p/K0x%p\n",
+			__func__, __LINE__, n, src, userbuf, kernelbuf);
+		if (userbuf) {
+			if (copy_to_user(userbuf, src, n)) {
+				res = -EFAULT;
+				goto fail;
+			}
+			userbuf += n;
 		}
-
-		res = ps3flash_write_chunk(dev, start_write_sector);
-		if (res < 0)
-			goto fail;
+		if (kernelbuf) {
+			memcpy(kernelbuf, src, n);
+			kernelbuf += n;
+		}
 
 		mutex_unlock(&priv->mutex);
 
 		*pos += n;
-		buf += n;
 		remaining -= n;
-		start_write_sector += chunk_sectors;
-		head = 0;
+		sector += priv->chunk_sectors;
 		offset = 0;
 	} while (remaining > 0);
 
@@ -288,6 +189,126 @@
 	return res;
 }
 
+static ssize_t ps3flash_write(const char __user *userbuf,
+			      const void *kernelbuf, size_t count, loff_t *pos)
+{
+	struct ps3_storage_device *dev = ps3flash_dev;
+	struct ps3flash_private *priv = ps3_system_bus_get_drvdata(&dev->sbd);
+	u64 size, sector, offset;
+	int res = 0;
+	size_t remaining, n;
+	void *dst;
+
+	dev_dbg(&dev->sbd.core,
+		"%s:%u: Writing %zu bytes at position %lld from U0x%p/K0x%p\n",
+		__func__, __LINE__, count, *pos, userbuf, kernelbuf);
+
+	size = dev->regions[dev->region_idx].size*dev->blk_size;
+	if (*pos >= size || !count)
+		return 0;
+
+	if (*pos + count > size) {
+		dev_dbg(&dev->sbd.core,
+			"%s:%u Truncating count from %zu to %llu\n", __func__,
+			__LINE__, count, size - *pos);
+		count = size - *pos;
+	}
+
+	sector = *pos / dev->bounce_size * priv->chunk_sectors;
+	offset = *pos % dev->bounce_size;
+
+	remaining = count;
+	do {
+		n = min_t(u64, remaining, dev->bounce_size - offset);
+		dst = dev->bounce_buf + offset;
+
+		mutex_lock(&priv->mutex);
+
+		if (n != dev->bounce_size)
+			res = ps3flash_fetch(dev, sector);
+		else if (sector != priv->tag)
+			res = ps3flash_writeback(dev);
+		if (res)
+			goto fail;
+
+		dev_dbg(&dev->sbd.core,
+			"%s:%u: copy %lu bytes from U0x%p/K0x%p to 0x%p\n",
+			__func__, __LINE__, n, userbuf, kernelbuf, dst);
+		if (userbuf) {
+			if (copy_from_user(dst, userbuf, n)) {
+				res = -EFAULT;
+				goto fail;
+			}
+			userbuf += n;
+		}
+		if (kernelbuf) {
+			memcpy(dst, kernelbuf, n);
+			kernelbuf += n;
+		}
+
+		priv->tag = sector;
+		priv->dirty = true;
+
+		mutex_unlock(&priv->mutex);
+
+		*pos += n;
+		remaining -= n;
+		sector += priv->chunk_sectors;
+		offset = 0;
+	} while (remaining > 0);
+
+	return count;
+
+fail:
+	mutex_unlock(&priv->mutex);
+	return res;
+}
+
+static ssize_t ps3flash_user_read(struct file *file, char __user *buf,
+				  size_t count, loff_t *pos)
+{
+	return ps3flash_read(buf, NULL, count, pos);
+}
+
+static ssize_t ps3flash_user_write(struct file *file, const char __user *buf,
+				   size_t count, loff_t *pos)
+{
+	return ps3flash_write(buf, NULL, count, pos);
+}
+
+static ssize_t ps3flash_kernel_read(void *buf, size_t count, loff_t pos)
+{
+	return ps3flash_read(NULL, buf, count, &pos);
+}
+
+static ssize_t ps3flash_kernel_write(const void *buf, size_t count,
+				     loff_t pos)
+{
+	ssize_t res;
+	int wb;
+
+	res = ps3flash_write(NULL, buf, count, &pos);
+	if (res < 0)
+		return res;
+
+	/* Make kernel writes synchronous */
+	wb = ps3flash_writeback(ps3flash_dev);
+	if (wb)
+		return wb;
+
+	return res;
+}
+
+static int ps3flash_flush(struct file *file, fl_owner_t id)
+{
+	return ps3flash_writeback(ps3flash_dev);
+}
+
+static int ps3flash_fsync(struct file *file, struct dentry *dentry,
+			  int datasync)
+{
+	return ps3flash_writeback(ps3flash_dev);
+}
 
 static irqreturn_t ps3flash_interrupt(int irq, void *data)
 {
@@ -312,12 +333,18 @@
 	return IRQ_HANDLED;
 }
 
-
 static const struct file_operations ps3flash_fops = {
 	.owner	= THIS_MODULE,
 	.llseek	= ps3flash_llseek,
-	.read	= ps3flash_read,
-	.write	= ps3flash_write,
+	.read	= ps3flash_user_read,
+	.write	= ps3flash_user_write,
+	.flush	= ps3flash_flush,
+	.fsync	= ps3flash_fsync,
+};
+
+static const struct ps3_os_area_flash_ops ps3flash_kernel_ops = {
+	.read	= ps3flash_kernel_read,
+	.write	= ps3flash_kernel_write,
 };
 
 static struct miscdevice ps3flash_misc = {
@@ -366,11 +393,13 @@
 		goto fail;
 	}
 
-	dev->sbd.core.driver_data = priv;
+	ps3_system_bus_set_drvdata(&dev->sbd, priv);
 	mutex_init(&priv->mutex);
+	priv->tag = -1;
 
 	dev->bounce_size = ps3flash_bounce_buffer.size;
 	dev->bounce_buf = ps3flash_bounce_buffer.address;
+	priv->chunk_sectors = dev->bounce_size / dev->blk_size;
 
 	error = ps3stor_setup(dev, ps3flash_interrupt);
 	if (error)
@@ -386,13 +415,15 @@
 
 	dev_info(&dev->sbd.core, "%s:%u: registered misc device %d\n",
 		 __func__, __LINE__, ps3flash_misc.minor);
+
+	ps3_os_area_flash_register(&ps3flash_kernel_ops);
 	return 0;
 
 fail_teardown:
 	ps3stor_teardown(dev);
 fail_free_priv:
 	kfree(priv);
-	dev->sbd.core.driver_data = NULL;
+	ps3_system_bus_set_drvdata(&dev->sbd, NULL);
 fail:
 	ps3flash_dev = NULL;
 	return error;
@@ -402,10 +433,11 @@
 {
 	struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core);
 
+	ps3_os_area_flash_register(NULL);
 	misc_deregister(&ps3flash_misc);
 	ps3stor_teardown(dev);
-	kfree(dev->sbd.core.driver_data);
-	dev->sbd.core.driver_data = NULL;
+	kfree(ps3_system_bus_get_drvdata(&dev->sbd));
+	ps3_system_bus_set_drvdata(&dev->sbd, NULL);
 	ps3flash_dev = NULL;
 	return 0;
 }
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 5acd29e..daebe1b 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -95,23 +95,34 @@
  * a count.
  *
  * FIXME: Our pty_write method is called with our ldisc lock held but
- * not our partners. We can't just take the other one blindly without
- * risking deadlocks.
+ * not our partners. We can't just wait on the other one blindly without
+ * risking deadlocks. At some point when everything has settled down we need
+ * to look into making pty_write at least able to sleep over an ldisc change.
+ *
+ * The return on no ldisc is a bit counter intuitive but the logic works
+ * like this. During an ldisc change the other end will flush its buffers. We
+ * thus return the full length which is identical to the case where we had
+ * proper locking and happened to queue the bytes just before the flush during
+ * the ldisc change.
  */
 static int pty_write(struct tty_struct *tty, const unsigned char *buf,
 								int count)
 {
 	struct tty_struct *to = tty->link;
-	int	c;
+	struct tty_ldisc *ld;
+	int c = count;
 
 	if (!to || tty->stopped)
 		return 0;
+	ld = tty_ldisc_ref(to);
 
-	c = to->receive_room;
-	if (c > count)
-		c = count;
-	to->ldisc->ops->receive_buf(to, buf, NULL, c);
-
+	if (ld) {
+		c = to->receive_room;
+		if (c > count)
+			c = count;
+		ld->ops->receive_buf(to, buf, NULL, c);
+		tty_ldisc_deref(ld);
+	}
 	return c;
 }
 
@@ -145,14 +156,23 @@
 static int pty_chars_in_buffer(struct tty_struct *tty)
 {
 	struct tty_struct *to = tty->link;
-	int count;
+	struct tty_ldisc *ld;
+	int count = 0;
 
 	/* We should get the line discipline lock for "tty->link" */
-	if (!to || !to->ldisc->ops->chars_in_buffer)
+	if (!to)
+		return 0;
+	/* We cannot take a sleeping reference here without deadlocking with
+	   an ldisc change - but it doesn't really matter */
+	ld = tty_ldisc_ref(to);
+	if (ld == NULL)
 		return 0;
 
 	/* The ldisc must report 0 if no characters available to be read */
-	count = to->ldisc->ops->chars_in_buffer(to);
+	if (ld->ops->chars_in_buffer)
+		count = ld->ops->chars_in_buffer(to);
+
+	tty_ldisc_deref(ld);
 
 	if (tty->driver->subtype == PTY_TYPE_SLAVE)
 		return count;
@@ -182,12 +202,19 @@
 {
 	struct tty_struct *to = tty->link;
 	unsigned long flags;
+	struct tty_ldisc *ld;
 
 	if (!to)
 		return;
+	ld = tty_ldisc_ref(to);
 
-	if (to->ldisc->ops->flush_buffer)
+	/* The other end is changing discipline */
+	if (!ld)
+		return;
+
+	if (ld->ops->flush_buffer)
 		to->ldisc->ops->flush_buffer(to);
+	tty_ldisc_deref(ld);
 
 	if (to->packet) {
 		spin_lock_irqsave(&tty->ctrl_lock, flags);
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 939e198..a3afa0c 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1263,7 +1263,9 @@
 	tty->count++;
 	tty->driver = driver; /* N.B. why do this every time?? */
 
+	mutex_lock(&tty->ldisc_mutex);
 	WARN_ON(!test_bit(TTY_LDISC, &tty->flags));
+	mutex_unlock(&tty->ldisc_mutex);
 
 	return 0;
 }
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index 8116bb1c..b24f6c6 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -947,7 +947,6 @@
 	void __user *p = (void __user *)arg;
 	int ret = 0;
 	struct ktermios kterm;
-	struct termiox ktermx;
 
 	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 	    tty->driver->subtype == PTY_TYPE_MASTER)
@@ -1049,7 +1048,8 @@
 		return ret;
 #endif
 #ifdef TCGETX
-	case TCGETX:
+	case TCGETX: {
+		struct termiox ktermx;
 		if (real_tty->termiox == NULL)
 			return -EINVAL;
 		mutex_lock(&real_tty->termios_mutex);
@@ -1058,6 +1058,7 @@
 		if (copy_to_user(p, &ktermx, sizeof(struct termiox)))
 			ret = -EFAULT;
 		return ret;
+	}
 	case TCSETX:
 		return set_termiox(real_tty, p, 0);
 	case TCSETXW:
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index 39c8f86..a19e935 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -148,8 +148,10 @@
 		}
 	}
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-	if (err)
+	if (err) {
+		kfree(ld);
 		return ERR_PTR(err);
+	}
 	return ld;
 }
 
@@ -205,6 +207,7 @@
 	ldo->refcount--;
 	module_put(ldo->owner);
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+	WARN_ON(ld->refcount);
 	kfree(ld);
 }
 
@@ -262,7 +265,7 @@
  *	@ld: line discipline
  *
  *	Install an instance of a line discipline into a tty structure. The
- *	ldisc must have a reference count above zero to ensure it remains/
+ *	ldisc must have a reference count above zero to ensure it remains.
  *	The tty instance refcount starts at zero.
  *
  *	Locking:
@@ -791,6 +794,8 @@
 		/* Avoid racing set_ldisc */
 		mutex_lock(&tty->ldisc_mutex);
 		/* Switch back to N_TTY */
+		tty_ldisc_halt(tty);
+		tty_ldisc_wait_idle(tty);
 		tty_ldisc_reinit(tty);
 		/* At this point we have a closed ldisc and we want to
 		   reopen it. We could defer this to the next open but
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d73f5f4..f8090e1 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -306,11 +306,11 @@
 	  will be called f71805f.
 
 config SENSORS_F71882FG
-	tristate "Fintek F71862FG, F71882FG and F8000"
+	tristate "Fintek F71858FG, F71862FG, F71882FG and F8000"
 	depends on EXPERIMENTAL
 	help
 	  If you say yes here you get support for hardware monitoring
-	  features of the Fintek F71882FG/F71883FG, F71862FG/71863FG
+	  features of the Fintek F71858FG, F71862FG/71863FG, F71882FG/F71883FG
 	  and F8000 Super-I/O chips.
 
 	  This driver can also be built as a module.  If so, the module
@@ -418,7 +418,7 @@
 	  power sensors and capping hardware in various IBM System X
 	  servers that support Active Energy Manager.  This includes
 	  the x3350, x3550, x3650, x3655, x3755, x3850 M2, x3950 M2,
-	  and certain HS2x/LS2x/QS2x blades.
+	  and certain HC10/HS2x/LS2x/QS2x blades.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called ibmaem.
@@ -787,6 +787,16 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called thmc50.
 
+config SENSORS_TMP401
+	tristate "Texas Instruments TMP401 and compatibles"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for Texas Instruments TMP401 and
+	  TMP411 temperature sensor chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called tmp401.
+
 config SENSORS_VIA686A
 	tristate "VIA686A"
 	depends on PCI
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 0ae2698..b793dce 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -82,6 +82,7 @@
 obj-$(CONFIG_SENSORS_SMSC47M1)	+= smsc47m1.o
 obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o
 obj-$(CONFIG_SENSORS_THMC50)	+= thmc50.o
+obj-$(CONFIG_SENSORS_TMP401)	+= tmp401.o
 obj-$(CONFIG_SENSORS_VIA686A)	+= via686a.o
 obj-$(CONFIG_SENSORS_VT1211)	+= vt1211.o
 obj-$(CONFIG_SENSORS_VT8231)	+= vt8231.o
diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 5f81ddf..4146105 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -1,6 +1,6 @@
 /***************************************************************************
  *   Copyright (C) 2006 by Hans Edgington <hans@edgington.nl>              *
- *   Copyright (C) 2007,2008 by Hans de Goede <hdegoede@redhat.com>        *
+ *   Copyright (C) 2007-2009 Hans de Goede <hdegoede@redhat.com>           *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -32,6 +32,7 @@
 
 #define DRVNAME "f71882fg"
 
+#define SIO_F71858FG_LD_HWM	0x02	/* Hardware monitor logical device */
 #define SIO_F71882FG_LD_HWM	0x04	/* Hardware monitor logical device */
 #define SIO_UNLOCK_KEY		0x87	/* Key to enable Super-I/O */
 #define SIO_LOCK_KEY		0xAA	/* Key to diasble Super-I/O */
@@ -44,6 +45,7 @@
 #define SIO_REG_ADDR		0x60	/* Logical device address (2 bytes) */
 
 #define SIO_FINTEK_ID		0x1934	/* Manufacturers ID */
+#define SIO_F71858_ID		0x0507  /* Chipset ID */
 #define SIO_F71862_ID		0x0601	/* Chipset ID */
 #define SIO_F71882_ID		0x0541	/* Chipset ID */
 #define SIO_F8000_ID		0x0581	/* Chipset ID */
@@ -70,6 +72,7 @@
 #define F71882FG_REG_TEMP_HIGH(nr)	(0x81 + 2 * (nr))
 #define F71882FG_REG_TEMP_STATUS	0x62
 #define F71882FG_REG_TEMP_BEEP		0x63
+#define F71882FG_REG_TEMP_CONFIG	0x69
 #define F71882FG_REG_TEMP_HYST(nr)	(0x6C + (nr))
 #define F71882FG_REG_TEMP_TYPE		0x6B
 #define F71882FG_REG_TEMP_DIODE_OPEN	0x6F
@@ -92,9 +95,10 @@
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
-enum chips { f71862fg, f71882fg, f8000 };
+enum chips { f71858fg, f71862fg, f71882fg, f8000 };
 
 static const char *f71882fg_names[] = {
+	"f71858fg",
 	"f71862fg",
 	"f71882fg",
 	"f8000",
@@ -119,6 +123,7 @@
 	struct device *hwmon_dev;
 
 	struct mutex update_lock;
+	int temp_start;			/* temp numbering start (0 or 1) */
 	char valid;			/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 	unsigned long last_limits;	/* In jiffies */
@@ -136,7 +141,7 @@
 	/* Note: all models have only 3 temperature channels, but on some
 	   they are addressed as 0-2 and on others as 1-3, so for coding
 	   convenience we reserve space for 4 channels */
-	u8	temp[4];
+	u16	temp[4];
 	u8	temp_ovt[4];
 	u8	temp_high[4];
 	u8	temp_hyst[2]; /* 2 hysts stored per reg */
@@ -144,6 +149,7 @@
 	u8	temp_status;
 	u8	temp_beep;
 	u8	temp_diode_open;
+	u8	temp_config;
 	u8	pwm[4];
 	u8	pwm_enable;
 	u8	pwm_auto_point_hyst[2];
@@ -247,11 +253,55 @@
 		.name	= DRVNAME,
 	},
 	.probe		= f71882fg_probe,
-	.remove		= __devexit_p(f71882fg_remove),
+	.remove		= f71882fg_remove,
 };
 
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 
+/* Temp and in attr for the f71858fg */
+static struct sensor_device_attribute_2 f71858fg_in_temp_attr[] = {
+	SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
+	SENSOR_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 0, 1),
+	SENSOR_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 0, 2),
+	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
+	SENSOR_ATTR_2(temp1_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 0, 0),
+	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 0, 0),
+	SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 0),
+	SENSOR_ATTR_2(temp1_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 0, 0),
+	SENSOR_ATTR_2(temp1_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+		0, 0),
+	SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
+	SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
+	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
+	SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 0, 1),
+	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 0, 1),
+	SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 1),
+	SENSOR_ATTR_2(temp2_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 0, 1),
+	SENSOR_ATTR_2(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+		0, 1),
+	SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
+	SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 1),
+	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
+	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
+	SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_max,
+		store_temp_max, 0, 2),
+	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max_hyst,
+		store_temp_max_hyst, 0, 2),
+	SENSOR_ATTR_2(temp3_max_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 2),
+	SENSOR_ATTR_2(temp3_crit, S_IRUGO|S_IWUSR, show_temp_crit,
+		store_temp_crit, 0, 2),
+	SENSOR_ATTR_2(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL,
+		0, 2),
+	SENSOR_ATTR_2(temp3_crit_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
+	SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
+};
+
 /* Temp and in attr common to both the f71862fg and f71882fg */
 static struct sensor_device_attribute_2 f718x2fg_in_temp_attr[] = {
 	SENSOR_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0),
@@ -344,6 +394,7 @@
 	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
 		store_temp_max, 0, 0),
 	SENSOR_ATTR_2(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 4),
+	SENSOR_ATTR_2(temp1_fault, S_IRUGO, show_temp_fault, NULL, 0, 0),
 	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1),
 	SENSOR_ATTR_2(temp2_max, S_IRUGO|S_IWUSR, show_temp_crit,
 		store_temp_crit, 0, 1),
@@ -351,12 +402,14 @@
 		store_temp_max, 0, 1),
 	SENSOR_ATTR_2(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 5),
 	SENSOR_ATTR_2(temp2_type, S_IRUGO, show_temp_type, NULL, 0, 1),
+	SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_temp_fault, NULL, 0, 1),
 	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2),
 	SENSOR_ATTR_2(temp3_max, S_IRUGO|S_IWUSR, show_temp_crit,
 		store_temp_crit, 0, 2),
 	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO|S_IWUSR, show_temp_max,
 		store_temp_max, 0, 2),
 	SENSOR_ATTR_2(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 0, 6),
+	SENSOR_ATTR_2(temp3_fault, S_IRUGO, show_temp_fault, NULL, 0, 2),
 };
 
 /* Fan / PWM attr common to all models */
@@ -395,6 +448,9 @@
 		      show_pwm_auto_point_channel,
 		      store_pwm_auto_point_channel, 0, 1),
 
+	SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 2),
+	SENSOR_ATTR_2(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
+		      store_pwm_enable, 0, 2),
 	SENSOR_ATTR_2(pwm3_interpolate, S_IRUGO|S_IWUSR,
 		      show_pwm_interpolate, store_pwm_interpolate, 0, 2),
 	SENSOR_ATTR_2(pwm3_auto_channels_temp, S_IRUGO|S_IWUSR,
@@ -450,9 +506,6 @@
 	SENSOR_ATTR_2(pwm2_auto_point2_temp_hyst, S_IRUGO,
 		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
 
-	SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 2),
-	SENSOR_ATTR_2(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
-		      store_pwm_enable, 0, 2),
 	SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
 		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
 		      1, 2),
@@ -473,22 +526,8 @@
 		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
 };
 
-/* Fan / PWM attr for the f71882fg */
-static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
-	SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-		store_fan_beep, 0, 0),
-	SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-		store_fan_beep, 0, 1),
-	SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-		store_fan_beep, 0, 2),
-	SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
-	SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
-		      show_fan_full_speed,
-		      store_fan_full_speed, 0, 3),
-	SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
-		store_fan_beep, 0, 3),
-	SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
-
+/* Fan / PWM attr common to both the f71882fg and f71858fg */
+static struct sensor_device_attribute_2 f71882fg_f71858fg_fan_attr[] = {
 	SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO|S_IWUSR,
 		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
 		      0, 0),
@@ -565,9 +604,6 @@
 	SENSOR_ATTR_2(pwm2_auto_point4_temp_hyst, S_IRUGO,
 		      show_pwm_auto_point_temp_hyst, NULL, 3, 1),
 
-	SENSOR_ATTR_2(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 2),
-	SENSOR_ATTR_2(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
-		      store_pwm_enable, 0, 2),
 	SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO|S_IWUSR,
 		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
 		      0, 2),
@@ -605,6 +641,24 @@
 		      show_pwm_auto_point_temp_hyst, NULL, 2, 2),
 	SENSOR_ATTR_2(pwm3_auto_point4_temp_hyst, S_IRUGO,
 		      show_pwm_auto_point_temp_hyst, NULL, 3, 2),
+};
+
+/* Fan / PWM attr found on the f71882fg but not on the f71858fg */
+static struct sensor_device_attribute_2 f71882fg_fan_attr[] = {
+	SENSOR_ATTR_2(fan1_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 0, 0),
+	SENSOR_ATTR_2(fan2_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 0, 1),
+	SENSOR_ATTR_2(fan3_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 0, 2),
+
+	SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
+	SENSOR_ATTR_2(fan4_full_speed, S_IRUGO|S_IWUSR,
+		      show_fan_full_speed,
+		      store_fan_full_speed, 0, 3),
+	SENSOR_ATTR_2(fan4_beep, S_IRUGO|S_IWUSR, show_fan_beep,
+		store_fan_beep, 0, 3),
+	SENSOR_ATTR_2(fan4_alarm, S_IRUGO, show_fan_alarm, NULL, 0, 3),
 
 	SENSOR_ATTR_2(pwm4, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0, 3),
 	SENSOR_ATTR_2(pwm4_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
@@ -659,8 +713,6 @@
 static struct sensor_device_attribute_2 f8000_fan_attr[] = {
 	SENSOR_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 0, 3),
 
-	SENSOR_ATTR_2(pwm3, S_IRUGO, show_pwm, NULL, 0, 2),
-
 	SENSOR_ATTR_2(temp1_auto_point1_pwm, S_IRUGO|S_IWUSR,
 		      show_pwm_auto_point_pwm, store_pwm_auto_point_pwm,
 		      0, 2),
@@ -857,13 +909,20 @@
 	outb(val & 255, data->addr + DATA_REG_OFFSET);
 }
 
+static u16 f71882fg_read_temp(struct f71882fg_data *data, int nr)
+{
+	if (data->type == f71858fg)
+		return f71882fg_read16(data, F71882FG_REG_TEMP(nr));
+	else
+		return f71882fg_read8(data, F71882FG_REG_TEMP(nr));
+}
+
 static struct f71882fg_data *f71882fg_update_device(struct device *dev)
 {
 	struct f71882fg_data *data = dev_get_drvdata(dev);
 	int nr, reg = 0, reg2;
 	int nr_fans = (data->type == f71882fg) ? 4 : 3;
-	int nr_ins = (data->type == f8000) ? 3 : 9;
-	int temp_start = (data->type == f8000) ? 0 : 1;
+	int nr_ins = (data->type == f71858fg || data->type == f8000) ? 3 : 9;
 
 	mutex_lock(&data->update_lock);
 
@@ -878,7 +937,7 @@
 		}
 
 		/* Get High & boundary temps*/
-		for (nr = temp_start; nr < 3 + temp_start; nr++) {
+		for (nr = data->temp_start; nr < 3 + data->temp_start; nr++) {
 			data->temp_ovt[nr] = f71882fg_read8(data,
 						F71882FG_REG_TEMP_OVT(nr));
 			data->temp_high[nr] = f71882fg_read8(data,
@@ -886,14 +945,17 @@
 		}
 
 		if (data->type != f8000) {
-			data->fan_beep = f71882fg_read8(data,
-						F71882FG_REG_FAN_BEEP);
-			data->temp_beep = f71882fg_read8(data,
-						F71882FG_REG_TEMP_BEEP);
 			data->temp_hyst[0] = f71882fg_read8(data,
 						F71882FG_REG_TEMP_HYST(0));
 			data->temp_hyst[1] = f71882fg_read8(data,
 						F71882FG_REG_TEMP_HYST(1));
+		}
+
+		if (data->type == f71862fg || data->type == f71882fg) {
+			data->fan_beep = f71882fg_read8(data,
+						F71882FG_REG_FAN_BEEP);
+			data->temp_beep = f71882fg_read8(data,
+						F71882FG_REG_TEMP_BEEP);
 			/* Have to hardcode type, because temp1 is special */
 			reg  = f71882fg_read8(data, F71882FG_REG_TEMP_TYPE);
 			data->temp_type[2] = (reg & 0x04) ? 2 : 4;
@@ -904,10 +966,10 @@
 			data->temp_type[1] = 6 /* PECI */;
 		else if ((reg2 & 0x03) == 0x02)
 			data->temp_type[1] = 5 /* AMDSI */;
-		else if (data->type != f8000)
+		else if (data->type == f71862fg || data->type == f71882fg)
 			data->temp_type[1] = (reg & 0x02) ? 2 : 4;
 		else
-			data->temp_type[1] = 2; /* F8000 only supports BJT */
+			data->temp_type[1] = 2; /* Only supports BJT */
 
 		data->pwm_enable = f71882fg_read8(data,
 						  F71882FG_REG_PWM_ENABLE);
@@ -963,9 +1025,8 @@
 						F71882FG_REG_TEMP_STATUS);
 		data->temp_diode_open = f71882fg_read8(data,
 						F71882FG_REG_TEMP_DIODE_OPEN);
-		for (nr = temp_start; nr < 3 + temp_start; nr++)
-			data->temp[nr] = f71882fg_read8(data,
-						F71882FG_REG_TEMP(nr));
+		for (nr = data->temp_start; nr < 3 + data->temp_start; nr++)
+			data->temp[nr] = f71882fg_read_temp(data, nr);
 
 		data->fan_status = f71882fg_read8(data,
 						F71882FG_REG_FAN_STATUS);
@@ -1168,8 +1229,24 @@
 {
 	struct f71882fg_data *data = f71882fg_update_device(dev);
 	int nr = to_sensor_dev_attr_2(devattr)->index;
+	int sign, temp;
 
-	return sprintf(buf, "%d\n", data->temp[nr] * 1000);
+	if (data->type == f71858fg) {
+		/* TEMP_TABLE_SEL 1 or 3 ? */
+		if (data->temp_config & 1) {
+			sign = data->temp[nr] & 0x0001;
+			temp = (data->temp[nr] >> 5) & 0x7ff;
+		} else {
+			sign = data->temp[nr] & 0x8000;
+			temp = (data->temp[nr] >> 5) & 0x3ff;
+		}
+		temp *= 125;
+		if (sign)
+			temp -= 128000;
+	} else
+		temp = data->temp[nr] * 1000;
+
+	return sprintf(buf, "%d\n", temp);
 }
 
 static ssize_t show_temp_max(struct device *dev, struct device_attribute
@@ -1440,6 +1517,10 @@
 	int nr = to_sensor_dev_attr_2(devattr)->index;
 	long val = simple_strtol(buf, NULL, 10);
 
+	/* Special case for F8000 pwm channel 3 which only does auto mode */
+	if (data->type == f8000 && nr == 2 && val != 2)
+		return -EINVAL;
+
 	mutex_lock(&data->update_lock);
 	data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
 	/* Special case for F8000 auto PWM mode / Thermostat mode */
@@ -1458,6 +1539,12 @@
 	} else {
 		switch (val) {
 		case 1:
+			/* The f71858fg does not support manual RPM mode */
+			if (data->type == f71858fg &&
+			    ((data->pwm_enable >> (2 * nr)) & 1)) {
+				count = -EINVAL;
+				goto leave;
+			}
 			data->pwm_enable |= 2 << (2 * nr);
 			break;		/* Manual */
 		case 2:
@@ -1616,9 +1703,9 @@
 	int result;
 	struct f71882fg_data *data = f71882fg_update_device(dev);
 	int nr = to_sensor_dev_attr_2(devattr)->index;
-	int temp_start = (data->type == f8000) ? 0 : 1;
 
-	result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) - temp_start);
+	result = 1 << ((data->pwm_auto_point_mapping[nr] & 3) -
+		       data->temp_start);
 
 	return sprintf(buf, "%d\n", result);
 }
@@ -1629,7 +1716,6 @@
 {
 	struct f71882fg_data *data = dev_get_drvdata(dev);
 	int nr = to_sensor_dev_attr_2(devattr)->index;
-	int temp_start = (data->type == f8000) ? 0 : 1;
 	long val = simple_strtol(buf, NULL, 10);
 
 	switch (val) {
@@ -1645,7 +1731,7 @@
 	default:
 		return -EINVAL;
 	}
-	val += temp_start;
+	val += data->temp_start;
 	mutex_lock(&data->update_lock);
 	data->pwm_auto_point_mapping[nr] =
 		f71882fg_read8(data, F71882FG_REG_POINT_MAPPING(nr));
@@ -1721,6 +1807,8 @@
 
 	data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
 	data->type = sio_data->type;
+	data->temp_start =
+	    (data->type == f71858fg || data->type == f8000) ? 0 : 1;
 	mutex_init(&data->update_lock);
 	platform_set_drvdata(pdev, data);
 
@@ -1736,19 +1824,6 @@
 		goto exit_free;
 	}
 
-	data->pwm_enable = f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
-	/* If it is a 71862 and the fan / pwm part is enabled sanity check
-	   the pwm settings */
-	if (data->type == f71862fg && (start_reg & 0x02)) {
-		if ((data->pwm_enable & 0x15) != 0x15) {
-			dev_err(&pdev->dev,
-				"Invalid (reserved) pwm settings: 0x%02x\n",
-				(unsigned int)data->pwm_enable);
-			err = -ENODEV;
-			goto exit_free;
-		}
-	}
-
 	/* Register sysfs interface files */
 	err = device_create_file(&pdev->dev, &dev_attr_name);
 	if (err)
@@ -1756,6 +1831,20 @@
 
 	if (start_reg & 0x01) {
 		switch (data->type) {
+		case f71858fg:
+			data->temp_config =
+				f71882fg_read8(data, F71882FG_REG_TEMP_CONFIG);
+			if (data->temp_config & 0x10)
+				/* The f71858fg temperature alarms behave as
+				   the f8000 alarms in this mode */
+				err = f71882fg_create_sysfs_files(pdev,
+					f8000_in_temp_attr,
+					ARRAY_SIZE(f8000_in_temp_attr));
+			else
+				err = f71882fg_create_sysfs_files(pdev,
+					f71858fg_in_temp_attr,
+					ARRAY_SIZE(f71858fg_in_temp_attr));
+			break;
 		case f71882fg:
 			err = f71882fg_create_sysfs_files(pdev,
 					f71882fg_in_temp_attr,
@@ -1779,6 +1868,35 @@
 	}
 
 	if (start_reg & 0x02) {
+		data->pwm_enable =
+			f71882fg_read8(data, F71882FG_REG_PWM_ENABLE);
+
+		/* Sanity check the pwm settings */
+		switch (data->type) {
+		case f71858fg:
+			err = 0;
+			for (i = 0; i < nr_fans; i++)
+				if (((data->pwm_enable >> (i * 2)) & 3) == 3)
+					err = 1;
+			break;
+		case f71862fg:
+			err = (data->pwm_enable & 0x15) != 0x15;
+			break;
+		case f71882fg:
+			err = 0;
+			break;
+		case f8000:
+			err = data->pwm_enable & 0x20;
+			break;
+		}
+		if (err) {
+			dev_err(&pdev->dev,
+				"Invalid (reserved) pwm settings: 0x%02x\n",
+				(unsigned int)data->pwm_enable);
+			err = -ENODEV;
+			goto exit_unregister_sysfs;
+		}
+
 		err = f71882fg_create_sysfs_files(pdev, fxxxx_fan_attr,
 					ARRAY_SIZE(fxxxx_fan_attr));
 		if (err)
@@ -1794,6 +1912,13 @@
 			err = f71882fg_create_sysfs_files(pdev,
 					f71882fg_fan_attr,
 					ARRAY_SIZE(f71882fg_fan_attr));
+			if (err)
+				goto exit_unregister_sysfs;
+			/* fall through! */
+		case f71858fg:
+			err = f71882fg_create_sysfs_files(pdev,
+					f71882fg_f71858fg_fan_attr,
+					ARRAY_SIZE(f71882fg_f71858fg_fan_attr));
 			break;
 		case f8000:
 			err = f71882fg_create_sysfs_files(pdev,
@@ -1878,6 +2003,9 @@
 
 	devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
 	switch (devid) {
+	case SIO_F71858_ID:
+		sio_data->type = f71858fg;
+		break;
 	case SIO_F71862_ID:
 		sio_data->type = f71862fg;
 		break;
@@ -1892,7 +2020,11 @@
 		goto exit;
 	}
 
-	superio_select(sioaddr, SIO_F71882FG_LD_HWM);
+	if (sio_data->type == f71858fg)
+		superio_select(sioaddr, SIO_F71858FG_LD_HWM);
+	else
+		superio_select(sioaddr, SIO_F71882FG_LD_HWM);
+
 	if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
 		printk(KERN_WARNING DRVNAME ": Device not activated\n");
 		goto exit;
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index e15c3e7..29ea675 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -18,6 +18,7 @@
 #include <linux/hwmon.h>
 #include <linux/gfp.h>
 #include <linux/spinlock.h>
+#include <linux/pci.h>
 
 #define HWMON_ID_PREFIX "hwmon"
 #define HWMON_ID_FORMAT HWMON_ID_PREFIX "%d"
@@ -86,8 +87,36 @@
 			"hwmon_device_unregister() failed: bad class ID!\n");
 }
 
+static void __init hwmon_pci_quirks(void)
+{
+#if defined CONFIG_X86 && defined CONFIG_PCI
+	struct pci_dev *sb;
+	u16 base;
+	u8 enable;
+
+	/* Open access to 0x295-0x296 on MSI MS-7031 */
+	sb = pci_get_device(PCI_VENDOR_ID_ATI, 0x436c, NULL);
+	if (sb &&
+	    (sb->subsystem_vendor == 0x1462 &&	/* MSI */
+	     sb->subsystem_device == 0x0031)) {	/* MS-7031 */
+
+		pci_read_config_byte(sb, 0x48, &enable);
+		pci_read_config_word(sb, 0x64, &base);
+
+		if (base == 0 && !(enable & BIT(2))) {
+			dev_info(&sb->dev,
+				 "Opening wide generic port at 0x295\n");
+			pci_write_config_word(sb, 0x64, 0x295);
+			pci_write_config_byte(sb, 0x48, enable | BIT(2));
+		}
+	}
+#endif
+}
+
 static int __init hwmon_init(void)
 {
+	hwmon_pci_quirks();
+
 	hwmon_class = class_create(THIS_MODULE, "hwmon");
 	if (IS_ERR(hwmon_class)) {
 		printk(KERN_ERR "hwmon.c: couldn't create sysfs class\n");
diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c
index fe74609..405d3fb 100644
--- a/drivers/hwmon/ibmaem.c
+++ b/drivers/hwmon/ibmaem.c
@@ -1127,3 +1127,4 @@
 MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3655-*");
 MODULE_ALIAS("dmi:bvnIBM:*:pnIBMSystemx3755-*");
 MODULE_ALIAS("dmi:bvnIBM:*:pnIBM3850M2/x3950M2-*");
+MODULE_ALIAS("dmi:bvnIBM:*:pnIBMBladeHC10-*");
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index f27af6a..86142a8 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -12,7 +12,7 @@
  * also work with the MAX6651. It does not distinguish max6650 and max6651
  * chips.
  *
- * Tha datasheet was last seen at:
+ * The datasheet was last seen at:
  *
  *        http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
  *
@@ -98,6 +98,16 @@
 #define MAX6650_CFG_MODE_OPEN_LOOP	0x30
 #define MAX6650_COUNT_MASK		0x03
 
+/*
+ * Alarm status register bits
+ */
+
+#define MAX6650_ALRM_MAX	0x01
+#define MAX6650_ALRM_MIN	0x02
+#define MAX6650_ALRM_TACH	0x04
+#define MAX6650_ALRM_GPIO1	0x08
+#define MAX6650_ALRM_GPIO2	0x10
+
 /* Minimum and maximum values of the FAN-RPM */
 #define FAN_RPM_MIN 240
 #define FAN_RPM_MAX 30000
@@ -151,6 +161,7 @@
 	u8 tach[4];
 	u8 count;
 	u8 dac;
+	u8 alarm;
 };
 
 static ssize_t get_fan(struct device *dev, struct device_attribute *devattr,
@@ -418,6 +429,33 @@
 	return count;
 }
 
+/*
+ * Get alarm stati:
+ * Possible values:
+ * 0 = no alarm
+ * 1 = alarm
+ */
+
+static ssize_t get_alarm(struct device *dev, struct device_attribute *devattr,
+			 char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct max6650_data *data = max6650_update_device(dev);
+	struct i2c_client *client = to_i2c_client(dev);
+	int alarm = 0;
+
+	if (data->alarm & attr->index) {
+		mutex_lock(&data->update_lock);
+		alarm = 1;
+		data->alarm &= ~attr->index;
+		data->alarm |= i2c_smbus_read_byte_data(client,
+							MAX6650_REG_ALARM);
+		mutex_unlock(&data->update_lock);
+	}
+
+	return sprintf(buf, "%d\n", alarm);
+}
+
 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0);
 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1);
 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2);
@@ -426,7 +464,41 @@
 static DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO, get_div, set_div);
 static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, get_enable, set_enable);
 static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm);
+static SENSOR_DEVICE_ATTR(fan1_max_alarm, S_IRUGO, get_alarm, NULL,
+			  MAX6650_ALRM_MAX);
+static SENSOR_DEVICE_ATTR(fan1_min_alarm, S_IRUGO, get_alarm, NULL,
+			  MAX6650_ALRM_MIN);
+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, get_alarm, NULL,
+			  MAX6650_ALRM_TACH);
+static SENSOR_DEVICE_ATTR(gpio1_alarm, S_IRUGO, get_alarm, NULL,
+			  MAX6650_ALRM_GPIO1);
+static SENSOR_DEVICE_ATTR(gpio2_alarm, S_IRUGO, get_alarm, NULL,
+			  MAX6650_ALRM_GPIO2);
 
+static mode_t max6650_attrs_visible(struct kobject *kobj, struct attribute *a,
+				    int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct i2c_client *client = to_i2c_client(dev);
+	u8 alarm_en = i2c_smbus_read_byte_data(client, MAX6650_REG_ALARM_EN);
+	struct device_attribute *devattr;
+
+	/*
+	 * Hide the alarms that have not been enabled by the firmware
+	 */
+
+	devattr = container_of(a, struct device_attribute, attr);
+	if (devattr == &sensor_dev_attr_fan1_max_alarm.dev_attr
+	 || devattr == &sensor_dev_attr_fan1_min_alarm.dev_attr
+	 || devattr == &sensor_dev_attr_fan1_fault.dev_attr
+	 || devattr == &sensor_dev_attr_gpio1_alarm.dev_attr
+	 || devattr == &sensor_dev_attr_gpio2_alarm.dev_attr) {
+		if (!(alarm_en & to_sensor_dev_attr(devattr)->index))
+			return 0;
+	}
+
+	return a->mode;
+}
 
 static struct attribute *max6650_attrs[] = {
 	&sensor_dev_attr_fan1_input.dev_attr.attr,
@@ -437,11 +509,17 @@
 	&dev_attr_fan1_div.attr,
 	&dev_attr_pwm1_enable.attr,
 	&dev_attr_pwm1.attr,
+	&sensor_dev_attr_fan1_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_fan1_fault.dev_attr.attr,
+	&sensor_dev_attr_gpio1_alarm.dev_attr.attr,
+	&sensor_dev_attr_gpio2_alarm.dev_attr.attr,
 	NULL
 };
 
 static struct attribute_group max6650_attr_grp = {
 	.attrs = max6650_attrs,
+	.is_visible = max6650_attrs_visible,
 };
 
 /*
@@ -659,6 +737,12 @@
 							MAX6650_REG_COUNT);
 		data->dac = i2c_smbus_read_byte_data(client, MAX6650_REG_DAC);
 
+		/* Alarms are cleared on read in case the condition that
+		 * caused the alarm is removed. Keep the value latched here
+		 * for providing the register through different alarm files. */
+		data->alarm |= i2c_smbus_read_byte_data(client,
+							MAX6650_REG_ALARM);
+
 		data->last_updated = jiffies;
 		data->valid = 1;
 	}
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index 6cbdc2f..56cd600 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -627,35 +627,35 @@
 			.owner = THIS_MODULE,
 		},
 		.probe = sht15_probe,
-		.remove = sht15_remove,
+		.remove = __devexit_p(sht15_remove),
 	}, {
 		.driver = {
 			.name = "sht11",
 			.owner = THIS_MODULE,
 		},
 		.probe = sht15_probe,
-		.remove = sht15_remove,
+		.remove = __devexit_p(sht15_remove),
 	}, {
 		.driver = {
 			.name = "sht15",
 			.owner = THIS_MODULE,
 		},
 		.probe = sht15_probe,
-		.remove = sht15_remove,
+		.remove = __devexit_p(sht15_remove),
 	}, {
 		.driver = {
 			.name = "sht71",
 			.owner = THIS_MODULE,
 		},
 		.probe = sht15_probe,
-		.remove = sht15_remove,
+		.remove = __devexit_p(sht15_remove),
 	}, {
 		.driver = {
 			.name = "sht75",
 			.owner = THIS_MODULE,
 		},
 		.probe = sht15_probe,
-		.remove = sht15_remove,
+		.remove = __devexit_p(sht15_remove),
 	},
 };
 
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
new file mode 100644
index 0000000..7b34f2cd
--- /dev/null
+++ b/drivers/hwmon/tmp401.c
@@ -0,0 +1,690 @@
+/* tmp401.c
+ *
+ * Copyright (C) 2007,2008 Hans de Goede <hdegoede@redhat.com>
+ * Preliminary tmp411 support by:
+ * Gabriel Konat, Sander Leget, Wouter Willems
+ * Copyright (C) 2009 Andre Prendel <andre.prendel@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Driver for the Texas Instruments TMP401 SMBUS temperature sensor IC.
+ *
+ * Note this IC is in some aspect similar to the LM90, but it has quite a
+ * few differences too, for example the local temp has a higher resolution
+ * and thus has 16 bits registers for its value and limit instead of 8 bits.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
+
+/* Addresses to scan */
+static const unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END };
+
+/* Insmod parameters */
+I2C_CLIENT_INSMOD_2(tmp401, tmp411);
+
+/*
+ * The TMP401 registers, note some registers have different addresses for
+ * reading and writing
+ */
+#define TMP401_STATUS				0x02
+#define TMP401_CONFIG_READ			0x03
+#define TMP401_CONFIG_WRITE			0x09
+#define TMP401_CONVERSION_RATE_READ		0x04
+#define TMP401_CONVERSION_RATE_WRITE		0x0A
+#define TMP401_TEMP_CRIT_HYST			0x21
+#define TMP401_CONSECUTIVE_ALERT		0x22
+#define TMP401_MANUFACTURER_ID_REG		0xFE
+#define TMP401_DEVICE_ID_REG			0xFF
+#define TMP411_N_FACTOR_REG			0x18
+
+static const u8 TMP401_TEMP_MSB[2]			= { 0x00, 0x01 };
+static const u8 TMP401_TEMP_LSB[2]			= { 0x15, 0x10 };
+static const u8 TMP401_TEMP_LOW_LIMIT_MSB_READ[2]	= { 0x06, 0x08 };
+static const u8 TMP401_TEMP_LOW_LIMIT_MSB_WRITE[2]	= { 0x0C, 0x0E };
+static const u8 TMP401_TEMP_LOW_LIMIT_LSB[2]		= { 0x17, 0x14 };
+static const u8 TMP401_TEMP_HIGH_LIMIT_MSB_READ[2]	= { 0x05, 0x07 };
+static const u8 TMP401_TEMP_HIGH_LIMIT_MSB_WRITE[2]	= { 0x0B, 0x0D };
+static const u8 TMP401_TEMP_HIGH_LIMIT_LSB[2]		= { 0x16, 0x13 };
+/* These are called the THERM limit / hysteresis / mask in the datasheet */
+static const u8 TMP401_TEMP_CRIT_LIMIT[2]		= { 0x20, 0x19 };
+
+static const u8 TMP411_TEMP_LOWEST_MSB[2]		= { 0x30, 0x34 };
+static const u8 TMP411_TEMP_LOWEST_LSB[2]		= { 0x31, 0x35 };
+static const u8 TMP411_TEMP_HIGHEST_MSB[2]		= { 0x32, 0x36 };
+static const u8 TMP411_TEMP_HIGHEST_LSB[2]		= { 0x33, 0x37 };
+
+/* Flags */
+#define TMP401_CONFIG_RANGE		0x04
+#define TMP401_CONFIG_SHUTDOWN		0x40
+#define TMP401_STATUS_LOCAL_CRIT		0x01
+#define TMP401_STATUS_REMOTE_CRIT		0x02
+#define TMP401_STATUS_REMOTE_OPEN		0x04
+#define TMP401_STATUS_REMOTE_LOW		0x08
+#define TMP401_STATUS_REMOTE_HIGH		0x10
+#define TMP401_STATUS_LOCAL_LOW		0x20
+#define TMP401_STATUS_LOCAL_HIGH		0x40
+
+/* Manufacturer / Device ID's */
+#define TMP401_MANUFACTURER_ID			0x55
+#define TMP401_DEVICE_ID			0x11
+#define TMP411_DEVICE_ID			0x12
+
+/*
+ * Functions declarations
+ */
+
+static int tmp401_probe(struct i2c_client *client,
+			const struct i2c_device_id *id);
+static int tmp401_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info);
+static int tmp401_remove(struct i2c_client *client);
+static struct tmp401_data *tmp401_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id tmp401_id[] = {
+	{ "tmp401", tmp401 },
+	{ "tmp411", tmp411 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tmp401_id);
+
+static struct i2c_driver tmp401_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "tmp401",
+	},
+	.probe		= tmp401_probe,
+	.remove		= tmp401_remove,
+	.id_table	= tmp401_id,
+	.detect		= tmp401_detect,
+	.address_data	= &addr_data,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct tmp401_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	char valid; /* zero until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+	int kind;
+
+	/* register values */
+	u8 status;
+	u8 config;
+	u16 temp[2];
+	u16 temp_low[2];
+	u16 temp_high[2];
+	u8 temp_crit[2];
+	u8 temp_crit_hyst;
+	u16 temp_lowest[2];
+	u16 temp_highest[2];
+};
+
+/*
+ * Sysfs attr show / store functions
+ */
+
+static int tmp401_register_to_temp(u16 reg, u8 config)
+{
+	int temp = reg;
+
+	if (config & TMP401_CONFIG_RANGE)
+		temp -= 64 * 256;
+
+	return (temp * 625 + 80) / 160;
+}
+
+static u16 tmp401_temp_to_register(long temp, u8 config)
+{
+	if (config & TMP401_CONFIG_RANGE) {
+		temp = SENSORS_LIMIT(temp, -64000, 191000);
+		temp += 64000;
+	} else
+		temp = SENSORS_LIMIT(temp, 0, 127000);
+
+	return (temp * 160 + 312) / 625;
+}
+
+static int tmp401_crit_register_to_temp(u8 reg, u8 config)
+{
+	int temp = reg;
+
+	if (config & TMP401_CONFIG_RANGE)
+		temp -= 64;
+
+	return temp * 1000;
+}
+
+static u8 tmp401_crit_temp_to_register(long temp, u8 config)
+{
+	if (config & TMP401_CONFIG_RANGE) {
+		temp = SENSORS_LIMIT(temp, -64000, 191000);
+		temp += 64000;
+	} else
+		temp = SENSORS_LIMIT(temp, 0, 127000);
+
+	return (temp + 500) / 1000;
+}
+
+static ssize_t show_temp_value(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		tmp401_register_to_temp(data->temp[index], data->config));
+}
+
+static ssize_t show_temp_min(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		tmp401_register_to_temp(data->temp_low[index], data->config));
+}
+
+static ssize_t show_temp_max(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		tmp401_register_to_temp(data->temp_high[index], data->config));
+}
+
+static ssize_t show_temp_crit(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+			tmp401_crit_register_to_temp(data->temp_crit[index],
+							data->config));
+}
+
+static ssize_t show_temp_crit_hyst(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int temp, index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	mutex_lock(&data->update_lock);
+	temp = tmp401_crit_register_to_temp(data->temp_crit[index],
+						data->config);
+	temp -= data->temp_crit_hyst * 1000;
+	mutex_unlock(&data->update_lock);
+
+	return sprintf(buf, "%d\n", temp);
+}
+
+static ssize_t show_temp_lowest(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		tmp401_register_to_temp(data->temp_lowest[index],
+					data->config));
+}
+
+static ssize_t show_temp_highest(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	return sprintf(buf, "%d\n",
+		tmp401_register_to_temp(data->temp_highest[index],
+					data->config));
+}
+
+static ssize_t show_status(struct device *dev,
+	struct device_attribute *devattr, char *buf)
+{
+	int mask = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+
+	if (data->status & mask)
+		return sprintf(buf, "1\n");
+	else
+		return sprintf(buf, "0\n");
+}
+
+static ssize_t store_temp_min(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+	long val;
+	u16 reg;
+
+	if (strict_strtol(buf, 10, &val))
+		return -EINVAL;
+
+	reg = tmp401_temp_to_register(val, data->config);
+
+	mutex_lock(&data->update_lock);
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_LOW_LIMIT_MSB_WRITE[index], reg >> 8);
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_LOW_LIMIT_LSB[index], reg & 0xFF);
+
+	data->temp_low[index] = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t store_temp_max(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+	long val;
+	u16 reg;
+
+	if (strict_strtol(buf, 10, &val))
+		return -EINVAL;
+
+	reg = tmp401_temp_to_register(val, data->config);
+
+	mutex_lock(&data->update_lock);
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_HIGH_LIMIT_MSB_WRITE[index], reg >> 8);
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_HIGH_LIMIT_LSB[index], reg & 0xFF);
+
+	data->temp_high[index] = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t store_temp_crit(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	int index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+	long val;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &val))
+		return -EINVAL;
+
+	reg = tmp401_crit_temp_to_register(val, data->config);
+
+	mutex_lock(&data->update_lock);
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_CRIT_LIMIT[index], reg);
+
+	data->temp_crit[index] = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute
+	*devattr, const char *buf, size_t count)
+{
+	int temp, index = to_sensor_dev_attr(devattr)->index;
+	struct tmp401_data *data = tmp401_update_device(dev);
+	long val;
+	u8 reg;
+
+	if (strict_strtol(buf, 10, &val))
+		return -EINVAL;
+
+	if (data->config & TMP401_CONFIG_RANGE)
+		val = SENSORS_LIMIT(val, -64000, 191000);
+	else
+		val = SENSORS_LIMIT(val, 0, 127000);
+
+	mutex_lock(&data->update_lock);
+	temp = tmp401_crit_register_to_temp(data->temp_crit[index],
+						data->config);
+	val = SENSORS_LIMIT(val, temp - 255000, temp);
+	reg = ((temp - val) + 500) / 1000;
+
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP401_TEMP_CRIT_HYST, reg);
+
+	data->temp_crit_hyst = reg;
+
+	mutex_unlock(&data->update_lock);
+
+	return count;
+}
+
+/*
+ * Resets the historical measurements of minimum and maximum temperatures.
+ * This is done by writing any value to any of the minimum/maximum registers
+ * (0x30-0x37).
+ */
+static ssize_t reset_temp_history(struct device *dev,
+	struct device_attribute	*devattr, const char *buf, size_t count)
+{
+	long val;
+
+	if (strict_strtol(buf, 10, &val))
+		return -EINVAL;
+
+	if (val != 1) {
+		dev_err(dev, "temp_reset_history value %ld not"
+			" supported. Use 1 to reset the history!\n", val);
+		return -EINVAL;
+	}
+	i2c_smbus_write_byte_data(to_i2c_client(dev),
+		TMP411_TEMP_LOWEST_MSB[0], val);
+
+	return count;
+}
+
+static struct sensor_device_attribute tmp401_attr[] = {
+	SENSOR_ATTR(temp1_input, 0444, show_temp_value, NULL, 0),
+	SENSOR_ATTR(temp1_min, 0644, show_temp_min, store_temp_min, 0),
+	SENSOR_ATTR(temp1_max, 0644, show_temp_max, store_temp_max, 0),
+	SENSOR_ATTR(temp1_crit, 0644, show_temp_crit, store_temp_crit, 0),
+	SENSOR_ATTR(temp1_crit_hyst, 0644, show_temp_crit_hyst,
+		    store_temp_crit_hyst, 0),
+	SENSOR_ATTR(temp1_min_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_LOCAL_LOW),
+	SENSOR_ATTR(temp1_max_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_LOCAL_HIGH),
+	SENSOR_ATTR(temp1_crit_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_LOCAL_CRIT),
+	SENSOR_ATTR(temp2_input, 0444, show_temp_value, NULL, 1),
+	SENSOR_ATTR(temp2_min, 0644, show_temp_min, store_temp_min, 1),
+	SENSOR_ATTR(temp2_max, 0644, show_temp_max, store_temp_max, 1),
+	SENSOR_ATTR(temp2_crit, 0644, show_temp_crit, store_temp_crit, 1),
+	SENSOR_ATTR(temp2_crit_hyst, 0444, show_temp_crit_hyst, NULL, 1),
+	SENSOR_ATTR(temp2_fault, 0444, show_status, NULL,
+		    TMP401_STATUS_REMOTE_OPEN),
+	SENSOR_ATTR(temp2_min_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_REMOTE_LOW),
+	SENSOR_ATTR(temp2_max_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_REMOTE_HIGH),
+	SENSOR_ATTR(temp2_crit_alarm, 0444, show_status, NULL,
+		    TMP401_STATUS_REMOTE_CRIT),
+};
+
+/*
+ * Additional features of the TMP411 chip.
+ * The TMP411 stores the minimum and maximum
+ * temperature measured since power-on, chip-reset, or
+ * minimum and maximum register reset for both the local
+ * and remote channels.
+ */
+static struct sensor_device_attribute tmp411_attr[] = {
+	SENSOR_ATTR(temp1_highest, 0444, show_temp_highest, NULL, 0),
+	SENSOR_ATTR(temp1_lowest, 0444, show_temp_lowest, NULL, 0),
+	SENSOR_ATTR(temp2_highest, 0444, show_temp_highest, NULL, 1),
+	SENSOR_ATTR(temp2_lowest, 0444, show_temp_lowest, NULL, 1),
+	SENSOR_ATTR(temp_reset_history, 0200, NULL, reset_temp_history, 0),
+};
+
+/*
+ * Begin non sysfs callback code (aka Real code)
+ */
+
+static void tmp401_init_client(struct i2c_client *client)
+{
+	int config, config_orig;
+
+	/* Set the conversion rate to 2 Hz */
+	i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, 5);
+
+	/* Start conversions (disable shutdown if necessary) */
+	config = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ);
+	if (config < 0) {
+		dev_warn(&client->dev, "Initialization failed!\n");
+		return;
+	}
+
+	config_orig = config;
+	config &= ~TMP401_CONFIG_SHUTDOWN;
+
+	if (config != config_orig)
+		i2c_smbus_write_byte_data(client, TMP401_CONFIG_WRITE, config);
+}
+
+static int tmp401_detect(struct i2c_client *client, int kind,
+			 struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* Detect and identify the chip */
+	if (kind <= 0) {
+		u8 reg;
+
+		reg = i2c_smbus_read_byte_data(client,
+					       TMP401_MANUFACTURER_ID_REG);
+		if (reg != TMP401_MANUFACTURER_ID)
+			return -ENODEV;
+
+		reg = i2c_smbus_read_byte_data(client, TMP401_DEVICE_ID_REG);
+
+		switch (reg) {
+		case TMP401_DEVICE_ID:
+			kind = tmp401;
+			break;
+		case TMP411_DEVICE_ID:
+			kind = tmp411;
+			break;
+		default:
+			return -ENODEV;
+		}
+
+		reg = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ);
+		if (reg & 0x1b)
+			return -ENODEV;
+
+		reg = i2c_smbus_read_byte_data(client,
+					       TMP401_CONVERSION_RATE_READ);
+		/* Datasheet says: 0x1-0x6 */
+		if (reg > 15)
+			return -ENODEV;
+	}
+	strlcpy(info->type, tmp401_id[kind - 1].name, I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int tmp401_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int i, err = 0;
+	struct tmp401_data *data;
+	const char *names[] = { "TMP401", "TMP411" };
+
+	data = kzalloc(sizeof(struct tmp401_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+	data->kind = id->driver_data;
+
+	/* Initialize the TMP401 chip */
+	tmp401_init_client(client);
+
+	/* Register sysfs hooks */
+	for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++) {
+		err = device_create_file(&client->dev,
+					 &tmp401_attr[i].dev_attr);
+		if (err)
+			goto exit_remove;
+	}
+
+	/* Register aditional tmp411 sysfs hooks */
+	if (data->kind == tmp411) {
+		for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++) {
+			err = device_create_file(&client->dev,
+						 &tmp411_attr[i].dev_attr);
+			if (err)
+				goto exit_remove;
+		}
+	}
+
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		data->hwmon_dev = NULL;
+		goto exit_remove;
+	}
+
+	dev_info(&client->dev, "Detected TI %s chip\n",
+		 names[data->kind - 1]);
+
+	return 0;
+
+exit_remove:
+	tmp401_remove(client); /* will also free data for us */
+	return err;
+}
+
+static int tmp401_remove(struct i2c_client *client)
+{
+	struct tmp401_data *data = i2c_get_clientdata(client);
+	int i;
+
+	if (data->hwmon_dev)
+		hwmon_device_unregister(data->hwmon_dev);
+
+	for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++)
+		device_remove_file(&client->dev, &tmp401_attr[i].dev_attr);
+
+	if (data->kind == tmp411) {
+		for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++)
+			device_remove_file(&client->dev,
+					   &tmp411_attr[i].dev_attr);
+	}
+
+	kfree(data);
+	return 0;
+}
+
+static struct tmp401_data *tmp401_update_device_reg16(
+	struct i2c_client *client, struct tmp401_data *data)
+{
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		/*
+		 * High byte must be read first immediately followed
+		 * by the low byte
+		 */
+		data->temp[i] = i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_MSB[i]) << 8;
+		data->temp[i] |= i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_LSB[i]);
+		data->temp_low[i] = i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_LOW_LIMIT_MSB_READ[i]) << 8;
+		data->temp_low[i] |= i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_LOW_LIMIT_LSB[i]);
+		data->temp_high[i] = i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_HIGH_LIMIT_MSB_READ[i]) << 8;
+		data->temp_high[i] |= i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_HIGH_LIMIT_LSB[i]);
+		data->temp_crit[i] = i2c_smbus_read_byte_data(client,
+			TMP401_TEMP_CRIT_LIMIT[i]);
+
+		if (data->kind == tmp411) {
+			data->temp_lowest[i] = i2c_smbus_read_byte_data(client,
+				TMP411_TEMP_LOWEST_MSB[i]) << 8;
+			data->temp_lowest[i] |= i2c_smbus_read_byte_data(
+				client, TMP411_TEMP_LOWEST_LSB[i]);
+
+			data->temp_highest[i] = i2c_smbus_read_byte_data(
+				client, TMP411_TEMP_HIGHEST_MSB[i]) << 8;
+			data->temp_highest[i] |= i2c_smbus_read_byte_data(
+				client, TMP411_TEMP_HIGHEST_LSB[i]);
+		}
+	}
+	return data;
+}
+
+static struct tmp401_data *tmp401_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct tmp401_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+		data->status = i2c_smbus_read_byte_data(client, TMP401_STATUS);
+		data->config = i2c_smbus_read_byte_data(client,
+						TMP401_CONFIG_READ);
+		tmp401_update_device_reg16(client, data);
+
+		data->temp_crit_hyst = i2c_smbus_read_byte_data(client,
+						TMP401_TEMP_CRIT_HYST);
+
+		data->last_updated = jiffies;
+		data->valid = 1;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+static int __init tmp401_init(void)
+{
+	return i2c_add_driver(&tmp401_driver);
+}
+
+static void __exit tmp401_exit(void)
+{
+	i2c_del_driver(&tmp401_driver);
+}
+
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("Texas Instruments TMP401 temperature sensor driver");
+MODULE_LICENSE("GPL");
+
+module_init(tmp401_init);
+module_exit(tmp401_exit);
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index e64b420..0e97469 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -36,6 +36,7 @@
     w83627ehf   10      5       4       3      0x8850 0x88    0x5ca3
                                                0x8860 0xa1
     w83627dhg    9      5       4       3      0xa020 0xc1    0x5ca3
+    w83627dhg-p  9      5       4       3      0xb070 0xc1    0x5ca3
     w83667hg     9      5       3       3      0xa510 0xc1    0x5ca3
 */
 
@@ -53,12 +54,13 @@
 #include <asm/io.h>
 #include "lm75.h"
 
-enum kinds { w83627ehf, w83627dhg, w83667hg };
+enum kinds { w83627ehf, w83627dhg, w83627dhg_p, w83667hg };
 
 /* used to set data->name = w83627ehf_device_names[data->sio_kind] */
 static const char * w83627ehf_device_names[] = {
 	"w83627ehf",
 	"w83627dhg",
+	"w83627dhg",
 	"w83667hg",
 };
 
@@ -86,6 +88,7 @@
 #define SIO_W83627EHF_ID	0x8850
 #define SIO_W83627EHG_ID	0x8860
 #define SIO_W83627DHG_ID	0xa020
+#define SIO_W83627DHG_P_ID	0xb070
 #define SIO_W83667HG_ID 	0xa510
 #define SIO_ID_MASK		0xFFF0
 
@@ -1517,6 +1520,7 @@
 	static const char __initdata sio_name_W83627EHF[] = "W83627EHF";
 	static const char __initdata sio_name_W83627EHG[] = "W83627EHG";
 	static const char __initdata sio_name_W83627DHG[] = "W83627DHG";
+	static const char __initdata sio_name_W83627DHG_P[] = "W83627DHG-P";
 	static const char __initdata sio_name_W83667HG[] = "W83667HG";
 
 	u16 val;
@@ -1542,6 +1546,10 @@
 		sio_data->kind = w83627dhg;
 		sio_name = sio_name_W83627DHG;
 		break;
+	case SIO_W83627DHG_P_ID:
+		sio_data->kind = w83627dhg_p;
+		sio_name = sio_name_W83627DHG_P;
+		break;
 	case SIO_W83667HG_ID:
 		sio_data->kind = w83667hg;
 		sio_name = sio_name_W83667HG;
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index c8460fa..0d04d3e 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -211,7 +211,7 @@
 	  will be called i2c-via.
 
 config I2C_VIAPRO
-	tristate "VIA VT82C596/82C686/82xx and CX700/VX800/VX820"
+	tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx"
 	depends on PCI
 	help
 	  If you say yes to this option, support will be included for the VIA
@@ -225,8 +225,8 @@
 	    VT8237R/A/S
 	    VT8251
 	    CX700
-	    VX800
-	    VX820
+	    VX800/VX820
+	    VX855/VX875
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-viapro.
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 02e6f72..54d810a 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -37,6 +37,7 @@
    VT8251             0x3287             yes
    CX700              0x8324             yes
    VX800/VX820        0x8353             yes
+   VX855/VX875        0x8409             yes
 
    Note: we assume there can only be one device, with one SMBus interface.
 */
@@ -404,6 +405,7 @@
 	switch (pdev->device) {
 	case PCI_DEVICE_ID_VIA_CX700:
 	case PCI_DEVICE_ID_VIA_VX800:
+	case PCI_DEVICE_ID_VIA_VX855:
 	case PCI_DEVICE_ID_VIA_8251:
 	case PCI_DEVICE_ID_VIA_8237:
 	case PCI_DEVICE_ID_VIA_8237A:
@@ -469,6 +471,8 @@
 	  .driver_data = SMBBA3 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800),
 	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855),
+	  .driver_data = SMBBA3 },
 	{ 0, }
 };
 
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c
index 1a474ac..7663d57 100644
--- a/drivers/i2c/busses/i2c-voodoo3.c
+++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -163,7 +163,6 @@
 
 static struct i2c_adapter voodoo3_i2c_adapter = {
 	.owner		= THIS_MODULE,
-	.class		= I2C_CLASS_TV_ANALOG, 
 	.name		= "I2C Voodoo3/Banshee adapter",
 	.algo_data	= &voo_i2c_bit_data,
 };
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 8f8c81e..02d746c 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -64,21 +64,6 @@
 	  This driver is deprecated and will be dropped soon. Use
 	  drivers/gpio/pca953x.c instead.
 
-config SENSORS_MAX6875
-	tristate "Maxim MAX6875 Power supply supervisor"
-	depends on EXPERIMENTAL
-	help
-	  If you say yes here you get support for the Maxim MAX6875
-	  EEPROM-programmable, quad power-supply sequencer/supervisor.
-
-	  This provides an interface to program the EEPROM and reset the chip.
-
-	  This driver also supports the Maxim MAX6874 hex power-supply
-	  sequencer/supervisor if found at a compatible address.
-
-	  This driver can also be built as a module.  If so, the module
-	  will be called max6875.
-
 config SENSORS_TSL2550
 	tristate "Taos TSL2550 ambient light sensor"
 	depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index 55a3760..f4680d1 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -11,7 +11,6 @@
 #
 
 obj-$(CONFIG_DS1682)		+= ds1682.o
-obj-$(CONFIG_SENSORS_MAX6875)	+= max6875.o
 obj-$(CONFIG_SENSORS_PCA9539)	+= pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)	+= pcf8574.o
 obj-$(CONFIG_PCF8575)		+= pcf8575.o
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 85e2e919..5ed622e 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -29,7 +29,6 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/idr.h>
-#include <linux/platform_device.h>
 #include <linux/mutex.h>
 #include <linux/completion.h>
 #include <linux/hardirq.h>
@@ -451,16 +450,6 @@
 
 	mutex_lock(&core_lock);
 
-	/* Add the adapter to the driver core.
-	 * If the parent pointer is not set up,
-	 * we add this adapter to the host bus.
-	 */
-	if (adap->dev.parent == NULL) {
-		adap->dev.parent = &platform_bus;
-		pr_debug("I2C adapter driver [%s] forgot to specify "
-			 "physical device\n", adap->name);
-	}
-
 	/* Set default timeout to 1 second if not already set */
 	if (adap->timeout == 0)
 		adap->timeout = HZ;
@@ -1022,7 +1011,8 @@
  */
 int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 {
-	int ret;
+	unsigned long orig_jiffies;
+	int ret, try;
 
 	/* REVISIT the fault reporting model here is weak:
 	 *
@@ -1060,7 +1050,15 @@
 			mutex_lock_nested(&adap->bus_lock, adap->level);
 		}
 
-		ret = adap->algo->master_xfer(adap,msgs,num);
+		/* Retry automatically on arbitration loss */
+		orig_jiffies = jiffies;
+		for (ret = 0, try = 0; try <= adap->retries; try++) {
+			ret = adap->algo->master_xfer(adap, msgs, num);
+			if (ret != -EAGAIN)
+				break;
+			if (time_after(jiffies, orig_jiffies + adap->timeout))
+				break;
+		}
 		mutex_unlock(&adap->bus_lock);
 
 		return ret;
@@ -1509,7 +1507,7 @@
 	struct i2c_adapter *adapter;
 
 	mutex_lock(&core_lock);
-	adapter = (struct i2c_adapter *)idr_find(&i2c_adapter_idr, id);
+	adapter = idr_find(&i2c_adapter_idr, id);
 	if (adapter && !try_module_get(adapter->owner))
 		adapter = NULL;
 
@@ -1995,14 +1993,27 @@
 		   char read_write, u8 command, int protocol,
 		   union i2c_smbus_data *data)
 {
+	unsigned long orig_jiffies;
+	int try;
 	s32 res;
 
 	flags &= I2C_M_TEN | I2C_CLIENT_PEC;
 
 	if (adapter->algo->smbus_xfer) {
 		mutex_lock(&adapter->bus_lock);
-		res = adapter->algo->smbus_xfer(adapter,addr,flags,read_write,
-						command, protocol, data);
+
+		/* Retry automatically on arbitration loss */
+		orig_jiffies = jiffies;
+		for (res = 0, try = 0; try <= adapter->retries; try++) {
+			res = adapter->algo->smbus_xfer(adapter, addr, flags,
+							read_write, command,
+							protocol, data);
+			if (res != -EAGAIN)
+				break;
+			if (time_after(jiffies,
+				       orig_jiffies + adapter->timeout))
+				break;
+		}
 		mutex_unlock(&adapter->bus_lock);
 	} else
 		res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write,
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 0ddf904..fde377c 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -72,7 +72,7 @@
 		 "(default 0)");
 
 struct thermostat {
-	struct i2c_client	clt;
+	struct i2c_client	*clt;
 	u8			temps[3];
 	u8			cached_temp[3];
 	u8			initial_limits[3];
@@ -87,9 +87,6 @@
 static struct thermostat* thermostat;
 static struct task_struct *thread_therm = NULL;
 
-static int attach_one_thermostat(struct i2c_adapter *adapter, int addr,
-				 int busno);
-
 static void write_both_fan_speed(struct thermostat *th, int speed);
 static void write_fan_speed(struct thermostat *th, int speed, int fan);
 
@@ -101,7 +98,7 @@
 	
 	tmp[0] = reg;
 	tmp[1] = data;
-	rc = i2c_master_send(&th->clt, (const char *)tmp, 2);
+	rc = i2c_master_send(th->clt, (const char *)tmp, 2);
 	if (rc < 0)
 		return rc;
 	if (rc != 2)
@@ -116,12 +113,12 @@
 	int rc;
 
 	reg_addr = (u8)reg;
-	rc = i2c_master_send(&th->clt, &reg_addr, 1);
+	rc = i2c_master_send(th->clt, &reg_addr, 1);
 	if (rc < 0)
 		return rc;
 	if (rc != 1)
 		return -ENODEV;
-	rc = i2c_master_recv(&th->clt, (char *)&data, 1);
+	rc = i2c_master_recv(th->clt, (char *)&data, 1);
 	if (rc < 0)
 		return rc;
 	return data;
@@ -131,26 +128,36 @@
 attach_thermostat(struct i2c_adapter *adapter)
 {
 	unsigned long bus_no;
+	struct i2c_board_info info;
+	struct i2c_client *client;
 
 	if (strncmp(adapter->name, "uni-n", 5))
 		return -ENODEV;
 	bus_no = simple_strtoul(adapter->name + 6, NULL, 10);
 	if (bus_no != therm_bus)
 		return -ENODEV;
-	return attach_one_thermostat(adapter, therm_address, bus_no);
+
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	strlcpy(info.type, "therm_adt746x", I2C_NAME_SIZE);
+	info.addr = therm_address;
+	client = i2c_new_device(adapter, &info);
+	if (!client)
+		return -ENODEV;
+
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&client->detected, &client->driver->clients);
+	return 0;
 }
 
 static int
-detach_thermostat(struct i2c_adapter *adapter)
+remove_thermostat(struct i2c_client *client)
 {
-	struct thermostat* th;
+	struct thermostat *th = i2c_get_clientdata(client);
 	int i;
 	
-	if (thermostat == NULL)
-		return 0;
-
-	th = thermostat;
-
 	if (thread_therm != NULL) {
 		kthread_stop(thread_therm);
 	}
@@ -166,8 +173,6 @@
 
 	write_both_fan_speed(th, -1);
 
-	i2c_detach_client(&th->clt);
-
 	thermostat = NULL;
 
 	kfree(th);
@@ -175,14 +180,6 @@
 	return 0;
 }
 
-static struct i2c_driver thermostat_driver = {  
-	.driver = {
-		.name	= "therm_adt746x",
-	},
-	.attach_adapter	= attach_thermostat,
-	.detach_adapter	= detach_thermostat,
-};
-
 static int read_fan_speed(struct thermostat *th, u8 addr)
 {
 	u8 tmp[2];
@@ -371,8 +368,8 @@
 		th->limits[i] = default_limits_local[i] + limit_adjust;
 }
 
-static int attach_one_thermostat(struct i2c_adapter *adapter, int addr,
-				 int busno)
+static int probe_thermostat(struct i2c_client *client,
+			    const struct i2c_device_id *id)
 {
 	struct thermostat* th;
 	int rc;
@@ -385,16 +382,12 @@
 	if (!th)
 		return -ENOMEM;
 
-	th->clt.addr = addr;
-	th->clt.adapter = adapter;
-	th->clt.driver = &thermostat_driver;
-	strcpy(th->clt.name, "thermostat");
+	i2c_set_clientdata(client, th);
+	th->clt = client;
 
 	rc = read_reg(th, 0);
 	if (rc < 0) {
-		printk(KERN_ERR "adt746x: Thermostat failed to read config "
-				"from bus %d !\n",
-				busno);
+		dev_err(&client->dev, "Thermostat failed to read config!\n");
 		kfree(th);
 		return -ENODEV;
 	}
@@ -423,14 +416,6 @@
 
 	thermostat = th;
 
-	if (i2c_attach_client(&th->clt)) {
-		printk(KERN_INFO "adt746x: Thermostat failed to attach "
-				 "client !\n");
-		thermostat = NULL;
-		kfree(th);
-		return -ENODEV;
-	}
-
 	/* be sure to really write fan speed the first time */
 	th->last_speed[0] = -2;
 	th->last_speed[1] = -2;
@@ -456,6 +441,21 @@
 	return 0;
 }
 
+static const struct i2c_device_id therm_adt746x_id[] = {
+	{ "therm_adt746x", 0 },
+	{ }
+};
+
+static struct i2c_driver thermostat_driver = {
+	.driver = {
+		.name	= "therm_adt746x",
+	},
+	.attach_adapter	= attach_thermostat,
+	.probe = probe_thermostat,
+	.remove = remove_thermostat,
+	.id_table = therm_adt746x_id,
+};
+
 /* 
  * Now, unfortunately, sysfs doesn't give us a nice void * we could
  * pass around to the attribute functions, so we don't really have
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 817607e..a028598 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -287,22 +287,6 @@
 };
 
 /*
- * i2c_driver structure to attach to the host i2c controller
- */
-
-static int therm_pm72_attach(struct i2c_adapter *adapter);
-static int therm_pm72_detach(struct i2c_adapter *adapter);
-
-static struct i2c_driver therm_pm72_driver =
-{
-	.driver = {
-		.name	= "therm_pm72",
-	},
-	.attach_adapter	= therm_pm72_attach,
-	.detach_adapter	= therm_pm72_detach,
-};
-
-/*
  * Utility function to create an i2c_client structure and
  * attach it to one of u3 adapters
  */
@@ -310,6 +294,7 @@
 {
 	struct i2c_client *clt;
 	struct i2c_adapter *adap;
+	struct i2c_board_info info;
 
 	if (id & 0x200)
 		adap = k2;
@@ -320,31 +305,21 @@
 	if (adap == NULL)
 		return NULL;
 
-	clt = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
-	if (clt == NULL)
-		return NULL;
-
-	clt->addr = (id >> 1) & 0x7f;
-	clt->adapter = adap;
-	clt->driver = &therm_pm72_driver;
-	strncpy(clt->name, name, I2C_NAME_SIZE-1);
-
-	if (i2c_attach_client(clt)) {
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	info.addr = (id >> 1) & 0x7f;
+	strlcpy(info.type, "therm_pm72", I2C_NAME_SIZE);
+	clt = i2c_new_device(adap, &info);
+	if (!clt) {
 		printk(KERN_ERR "therm_pm72: Failed to attach to i2c ID 0x%x\n", id);
-		kfree(clt);
 		return NULL;
 	}
-	return clt;
-}
 
-/*
- * Utility function to get rid of the i2c_client structure
- * (will also detach from the adapter hopepfully)
- */
-static void detach_i2c_chip(struct i2c_client *clt)
-{
-	i2c_detach_client(clt);
-	kfree(clt);
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&clt->detected, &clt->driver->clients);
+	return clt;
 }
 
 /*
@@ -1203,8 +1178,6 @@
 
 	return 0;
  fail:
-	if (state->monitor)
-		detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 	
 	return -ENODEV;
@@ -1232,7 +1205,6 @@
 		device_remove_file(&of_dev->dev, &dev_attr_cpu1_intake_fan_rpm);
 	}
 
-	detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 }
 
@@ -1407,7 +1379,6 @@
 	device_remove_file(&of_dev->dev, &dev_attr_backside_temperature);
 	device_remove_file(&of_dev->dev, &dev_attr_backside_fan_pwm);
 
-	detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 }
  
@@ -1532,7 +1503,6 @@
 	device_remove_file(&of_dev->dev, &dev_attr_drives_temperature);
 	device_remove_file(&of_dev->dev, &dev_attr_drives_fan_rpm);
 
-	detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 }
 
@@ -1654,7 +1624,6 @@
 
 	device_remove_file(&of_dev->dev, &dev_attr_dimms_temperature);
 
-	detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 }
 
@@ -1779,7 +1748,6 @@
 	device_remove_file(&of_dev->dev, &dev_attr_slots_temperature);
 	device_remove_file(&of_dev->dev, &dev_attr_slots_fan_pwm);
 
-	detach_i2c_chip(state->monitor);
 	state->monitor = NULL;
 }
 
@@ -2008,8 +1976,6 @@
  */
 static void detach_fcu(void)
 {
-	if (fcu)
-		detach_i2c_chip(fcu);
 	fcu = NULL;
 }
 
@@ -2060,12 +2026,21 @@
 	return 0;
 }
 
+static int therm_pm72_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id)
+{
+	/* Always succeed, the real work was done in therm_pm72_attach() */
+	return 0;
+}
+
 /*
- * Called on every adapter when the driver or the i2c controller
+ * Called when any of the devices which participates into thermal management
  * is going away.
  */
-static int therm_pm72_detach(struct i2c_adapter *adapter)
+static int therm_pm72_remove(struct i2c_client *client)
 {
+	struct i2c_adapter *adapter = client->adapter;
+
 	mutex_lock(&driver_lock);
 
 	if (state != state_detached)
@@ -2096,6 +2071,30 @@
 	return 0;
 }
 
+/*
+ * i2c_driver structure to attach to the host i2c controller
+ */
+
+static const struct i2c_device_id therm_pm72_id[] = {
+	/*
+	 * Fake device name, thermal management is done by several
+	 * chips but we don't need to differentiate between them at
+	 * this point.
+	 */
+	{ "therm_pm72", 0 },
+	{ }
+};
+
+static struct i2c_driver therm_pm72_driver = {
+	.driver = {
+		.name	= "therm_pm72",
+	},
+	.attach_adapter	= therm_pm72_attach,
+	.probe		= therm_pm72_probe,
+	.remove		= therm_pm72_remove,
+	.id_table	= therm_pm72_id,
+};
+
 static int fan_check_loc_match(const char *loc, int fan)
 {
 	char	tmp[64];
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 3da0a02..4002331 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -48,16 +48,6 @@
 
 #define LOG_TEMP		0			/* continously log temperature */
 
-static int 			do_probe( struct i2c_adapter *adapter, int addr, int kind);
-
-/* scan 0x48-0x4f (DS1775) and 0x2c-2x2f (ADM1030) */
-static const unsigned short	normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b,
-						 0x4c, 0x4d, 0x4e, 0x4f,
-						 0x2c, 0x2d, 0x2e, 0x2f,
-						 I2C_CLIENT_END };
-
-I2C_CLIENT_INSMOD;
-
 static struct {
 	volatile int		running;
 	struct task_struct	*poll_task;
@@ -315,53 +305,54 @@
 static int
 do_attach( struct i2c_adapter *adapter )
 {
-	int ret = 0;
+	/* scan 0x48-0x4f (DS1775) and 0x2c-2x2f (ADM1030) */
+	static const unsigned short scan_ds1775[] = {
+		0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+		I2C_CLIENT_END
+	};
+	static const unsigned short scan_adm1030[] = {
+		0x2c, 0x2d, 0x2e, 0x2f,
+		I2C_CLIENT_END
+	};
 
 	if( strncmp(adapter->name, "uni-n", 5) )
 		return 0;
 
 	if( !x.running ) {
-		ret = i2c_probe( adapter, &addr_data, &do_probe );
+		struct i2c_board_info info;
+
+		memset(&info, 0, sizeof(struct i2c_board_info));
+		strlcpy(info.type, "therm_ds1775", I2C_NAME_SIZE);
+		i2c_new_probed_device(adapter, &info, scan_ds1775);
+
+		strlcpy(info.type, "therm_adm1030", I2C_NAME_SIZE);
+		i2c_new_probed_device(adapter, &info, scan_adm1030);
+
 		if( x.thermostat && x.fan ) {
 			x.running = 1;
 			x.poll_task = kthread_run(control_loop, NULL, "g4fand");
 		}
 	}
-	return ret;
+	return 0;
 }
 
 static int
-do_detach( struct i2c_client *client )
+do_remove(struct i2c_client *client)
 {
-	int err;
-
-	if( (err=i2c_detach_client(client)) )
-		printk(KERN_ERR "failed to detach thermostat client\n");
-	else {
-		if( x.running ) {
-			x.running = 0;
-			kthread_stop(x.poll_task);
-			x.poll_task = NULL;
-		}
-		if( client == x.thermostat )
-			x.thermostat = NULL;
-		else if( client == x.fan )
-			x.fan = NULL;
-		else {
-			printk(KERN_ERR "g4fan: bad client\n");
-		}
-		kfree( client );
+	if (x.running) {
+		x.running = 0;
+		kthread_stop(x.poll_task);
+		x.poll_task = NULL;
 	}
-	return err;
-}
+	if (client == x.thermostat)
+		x.thermostat = NULL;
+	else if (client == x.fan)
+		x.fan = NULL;
+	else
+		printk(KERN_ERR "g4fan: bad client\n");
 
-static struct i2c_driver g4fan_driver = {  
-	.driver = {
-		.name	= "therm_windtunnel",
-	},
-	.attach_adapter = do_attach,
-	.detach_client	= do_detach,
-};
+	return 0;
+}
 
 static int
 attach_fan( struct i2c_client *cl )
@@ -374,13 +365,8 @@
 		goto out;
 	printk("ADM1030 fan controller [@%02x]\n", cl->addr );
 
-	strlcpy( cl->name, "ADM1030 fan controller", sizeof(cl->name) );
-
-	if( !i2c_attach_client(cl) )
-		x.fan = cl;
+	x.fan = cl;
  out:
-	if( cl != x.fan )
-		kfree( cl );
 	return 0;
 }
 
@@ -412,39 +398,47 @@
 	x.temp = temp;
 	x.overheat_temp = os_temp;
 	x.overheat_hyst = hyst_temp;
-	
-	strlcpy( cl->name, "DS1775 thermostat", sizeof(cl->name) );
-
-	if( !i2c_attach_client(cl) )
-		x.thermostat = cl;
+	x.thermostat = cl;
 out:
-	if( cl != x.thermostat )
-		kfree( cl );
 	return 0;
 }
 
+enum chip { ds1775, adm1030 };
+
+static const struct i2c_device_id therm_windtunnel_id[] = {
+	{ "therm_ds1775", ds1775 },
+	{ "therm_adm1030", adm1030 },
+	{ }
+};
+
 static int
-do_probe( struct i2c_adapter *adapter, int addr, int kind )
+do_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 {
-	struct i2c_client *cl;
+	struct i2c_adapter *adapter = cl->adapter;
 
 	if( !i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA
 				     | I2C_FUNC_SMBUS_WRITE_BYTE) )
 		return 0;
 
-	if( !(cl=kzalloc(sizeof(*cl), GFP_KERNEL)) )
-		return -ENOMEM;
-
-	cl->addr = addr;
-	cl->adapter = adapter;
-	cl->driver = &g4fan_driver;
-	cl->flags = 0;
-
-	if( addr < 0x48 )
+	switch (id->driver_data) {
+	case adm1030:
 		return attach_fan( cl );
-	return attach_thermostat( cl );
+	case ds1775:
+		return attach_thermostat(cl);
+	}
+	return 0;
 }
 
+static struct i2c_driver g4fan_driver = {
+	.driver = {
+		.name	= "therm_windtunnel",
+	},
+	.attach_adapter = do_attach,
+	.probe		= do_probe,
+	.remove		= do_remove,
+	.id_table	= therm_windtunnel_id,
+};
+
 
 /************************************************************************/
 /*	initialization / cleanup					*/
diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c
index b92b959..529886c 100644
--- a/drivers/macintosh/windfarm_lm75_sensor.c
+++ b/drivers/macintosh/windfarm_lm75_sensor.c
@@ -37,34 +37,22 @@
 struct wf_lm75_sensor {
 	int			ds1775 : 1;
 	int			inited : 1;
-	struct 	i2c_client	i2c;
+	struct 	i2c_client	*i2c;
 	struct 	wf_sensor	sens;
 };
 #define wf_to_lm75(c) container_of(c, struct wf_lm75_sensor, sens)
-#define i2c_to_lm75(c) container_of(c, struct wf_lm75_sensor, i2c)
-
-static int wf_lm75_attach(struct i2c_adapter *adapter);
-static int wf_lm75_detach(struct i2c_client *client);
-
-static struct i2c_driver wf_lm75_driver = {
-	.driver = {
-		.name	= "wf_lm75",
-	},
-	.attach_adapter	= wf_lm75_attach,
-	.detach_client	= wf_lm75_detach,
-};
 
 static int wf_lm75_get(struct wf_sensor *sr, s32 *value)
 {
 	struct wf_lm75_sensor *lm = wf_to_lm75(sr);
 	s32 data;
 
-	if (lm->i2c.adapter == NULL)
+	if (lm->i2c == NULL)
 		return -ENODEV;
 
 	/* Init chip if necessary */
 	if (!lm->inited) {
-		u8 cfg_new, cfg = (u8)i2c_smbus_read_byte_data(&lm->i2c, 1);
+		u8 cfg_new, cfg = (u8)i2c_smbus_read_byte_data(lm->i2c, 1);
 
 		DBG("wf_lm75: Initializing %s, cfg was: %02x\n",
 		    sr->name, cfg);
@@ -73,7 +61,7 @@
 		 * the firmware for now
 		 */
 		cfg_new = cfg & ~0x01;
-		i2c_smbus_write_byte_data(&lm->i2c, 1, cfg_new);
+		i2c_smbus_write_byte_data(lm->i2c, 1, cfg_new);
 		lm->inited = 1;
 
 		/* If we just powered it up, let's wait 200 ms */
@@ -81,7 +69,7 @@
 	}
 
 	/* Read temperature register */
-	data = (s32)le16_to_cpu(i2c_smbus_read_word_data(&lm->i2c, 0));
+	data = (s32)le16_to_cpu(i2c_smbus_read_word_data(lm->i2c, 0));
 	data <<= 8;
 	*value = data;
 
@@ -92,12 +80,6 @@
 {
 	struct wf_lm75_sensor *lm = wf_to_lm75(sr);
 
-	/* check if client is registered and detach from i2c */
-	if (lm->i2c.adapter) {
-		i2c_detach_client(&lm->i2c);
-		lm->i2c.adapter = NULL;
-	}
-
 	kfree(lm);
 }
 
@@ -107,59 +89,77 @@
 	.owner		= THIS_MODULE,
 };
 
-static struct wf_lm75_sensor *wf_lm75_create(struct i2c_adapter *adapter,
-					     u8 addr, int ds1775,
-					     const char *loc)
+static int wf_lm75_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
 	struct wf_lm75_sensor *lm;
 	int rc;
 
-	DBG("wf_lm75: creating  %s device at address 0x%02x\n",
-	    ds1775 ? "ds1775" : "lm75", addr);
-
 	lm = kzalloc(sizeof(struct wf_lm75_sensor), GFP_KERNEL);
 	if (lm == NULL)
-		return NULL;
+		return -ENODEV;
+
+	lm->inited = 0;
+	lm->ds1775 = id->driver_data;
+	lm->i2c = client;
+	lm->sens.name = client->dev.platform_data;
+	lm->sens.ops = &wf_lm75_ops;
+	i2c_set_clientdata(client, lm);
+
+	rc = wf_register_sensor(&lm->sens);
+	if (rc) {
+		i2c_set_clientdata(client, NULL);
+		kfree(lm);
+	}
+
+	return rc;
+}
+
+static struct i2c_client *wf_lm75_create(struct i2c_adapter *adapter,
+					     u8 addr, int ds1775,
+					     const char *loc)
+{
+	struct i2c_board_info info;
+	struct i2c_client *client;
+	char *name;
+
+	DBG("wf_lm75: creating  %s device at address 0x%02x\n",
+	    ds1775 ? "ds1775" : "lm75", addr);
 
 	/* Usual rant about sensor names not beeing very consistent in
 	 * the device-tree, oh well ...
 	 * Add more entries below as you deal with more setups
 	 */
 	if (!strcmp(loc, "Hard drive") || !strcmp(loc, "DRIVE BAY"))
-		lm->sens.name = "hd-temp";
+		name = "hd-temp";
 	else if (!strcmp(loc, "Incoming Air Temp"))
-		lm->sens.name = "incoming-air-temp";
+		name = "incoming-air-temp";
 	else if (!strcmp(loc, "ODD Temp"))
-		lm->sens.name = "optical-drive-temp";
+		name = "optical-drive-temp";
 	else if (!strcmp(loc, "HD Temp"))
-		lm->sens.name = "hard-drive-temp";
+		name = "hard-drive-temp";
 	else
 		goto fail;
 
-	lm->inited = 0;
-	lm->sens.ops = &wf_lm75_ops;
-	lm->ds1775 = ds1775;
-	lm->i2c.addr = (addr >> 1) & 0x7f;
-	lm->i2c.adapter = adapter;
-	lm->i2c.driver = &wf_lm75_driver;
-	strncpy(lm->i2c.name, lm->sens.name, I2C_NAME_SIZE-1);
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	info.addr = (addr >> 1) & 0x7f;
+	info.platform_data = name;
+	strlcpy(info.type, ds1775 ? "wf_ds1775" : "wf_lm75", I2C_NAME_SIZE);
 
-	rc = i2c_attach_client(&lm->i2c);
-	if (rc) {
-		printk(KERN_ERR "windfarm: failed to attach %s %s to i2c,"
-		       " err %d\n", ds1775 ? "ds1775" : "lm75",
-		       lm->i2c.name, rc);
+	client = i2c_new_device(adapter, &info);
+	if (client == NULL) {
+		printk(KERN_ERR "windfarm: failed to attach %s %s to i2c\n",
+		       ds1775 ? "ds1775" : "lm75", name);
 		goto fail;
 	}
 
-	if (wf_register_sensor(&lm->sens)) {
-		i2c_detach_client(&lm->i2c);
-		goto fail;
-	}
-
-	return lm;
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&client->detected, &client->driver->clients);
+	return client;
  fail:
-	kfree(lm);
 	return NULL;
 }
 
@@ -202,21 +202,38 @@
 	return 0;
 }
 
-static int wf_lm75_detach(struct i2c_client *client)
+static int wf_lm75_remove(struct i2c_client *client)
 {
-	struct wf_lm75_sensor *lm = i2c_to_lm75(client);
+	struct wf_lm75_sensor *lm = i2c_get_clientdata(client);
 
 	DBG("wf_lm75: i2c detatch called for %s\n", lm->sens.name);
 
 	/* Mark client detached */
-	lm->i2c.adapter = NULL;
+	lm->i2c = NULL;
 
 	/* release sensor */
 	wf_unregister_sensor(&lm->sens);
 
+	i2c_set_clientdata(client, NULL);
 	return 0;
 }
 
+static const struct i2c_device_id wf_lm75_id[] = {
+	{ "wf_lm75", 0 },
+	{ "wf_ds1775", 1 },
+	{ }
+};
+
+static struct i2c_driver wf_lm75_driver = {
+	.driver = {
+		.name	= "wf_lm75",
+	},
+	.attach_adapter	= wf_lm75_attach,
+	.probe		= wf_lm75_probe,
+	.remove		= wf_lm75_remove,
+	.id_table	= wf_lm75_id,
+};
+
 static int __init wf_lm75_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c
index e207a90..e2a55ec 100644
--- a/drivers/macintosh/windfarm_max6690_sensor.c
+++ b/drivers/macintosh/windfarm_max6690_sensor.c
@@ -26,34 +26,22 @@
 #define MAX6690_EXTERNAL_TEMP	1
 
 struct wf_6690_sensor {
-	struct i2c_client	i2c;
+	struct i2c_client	*i2c;
 	struct wf_sensor	sens;
 };
 
 #define wf_to_6690(x)	container_of((x), struct wf_6690_sensor, sens)
-#define i2c_to_6690(x)	container_of((x), struct wf_6690_sensor, i2c)
-
-static int wf_max6690_attach(struct i2c_adapter *adapter);
-static int wf_max6690_detach(struct i2c_client *client);
-
-static struct i2c_driver wf_max6690_driver = {
-	.driver = {
-		.name		= "wf_max6690",
-	},
-	.attach_adapter	= wf_max6690_attach,
-	.detach_client	= wf_max6690_detach,
-};
 
 static int wf_max6690_get(struct wf_sensor *sr, s32 *value)
 {
 	struct wf_6690_sensor *max = wf_to_6690(sr);
 	s32 data;
 
-	if (max->i2c.adapter == NULL)
+	if (max->i2c == NULL)
 		return -ENODEV;
 
 	/* chip gets initialized by firmware */
-	data = i2c_smbus_read_byte_data(&max->i2c, MAX6690_EXTERNAL_TEMP);
+	data = i2c_smbus_read_byte_data(max->i2c, MAX6690_EXTERNAL_TEMP);
 	if (data < 0)
 		return data;
 	*value = data << 16;
@@ -64,10 +52,6 @@
 {
 	struct wf_6690_sensor *max = wf_to_6690(sr);
 
-	if (max->i2c.adapter) {
-		i2c_detach_client(&max->i2c);
-		max->i2c.adapter = NULL;
-	}
 	kfree(max);
 }
 
@@ -77,19 +61,40 @@
 	.owner		= THIS_MODULE,
 };
 
-static void wf_max6690_create(struct i2c_adapter *adapter, u8 addr,
-			      const char *loc)
+static int wf_max6690_probe(struct i2c_client *client,
+			    const struct i2c_device_id *id)
 {
 	struct wf_6690_sensor *max;
-	char *name;
+	int rc;
 
 	max = kzalloc(sizeof(struct wf_6690_sensor), GFP_KERNEL);
 	if (max == NULL) {
-		printk(KERN_ERR "windfarm: Couldn't create MAX6690 sensor %s: "
-		       "no memory\n", loc);
-		return;
+		printk(KERN_ERR "windfarm: Couldn't create MAX6690 sensor: "
+		       "no memory\n");
+		return -ENOMEM;
 	}
 
+	max->i2c = client;
+	max->sens.name = client->dev.platform_data;
+	max->sens.ops = &wf_max6690_ops;
+	i2c_set_clientdata(client, max);
+
+	rc = wf_register_sensor(&max->sens);
+	if (rc) {
+		i2c_set_clientdata(client, NULL);
+		kfree(max);
+	}
+
+	return rc;
+}
+
+static struct i2c_client *wf_max6690_create(struct i2c_adapter *adapter,
+					    u8 addr, const char *loc)
+{
+	struct i2c_board_info info;
+	struct i2c_client *client;
+	char *name;
+
 	if (!strcmp(loc, "BACKSIDE"))
 		name = "backside-temp";
 	else if (!strcmp(loc, "NB Ambient"))
@@ -99,27 +104,26 @@
 	else
 		goto fail;
 
-	max->sens.ops = &wf_max6690_ops;
-	max->sens.name = name;
-	max->i2c.addr = addr >> 1;
-	max->i2c.adapter = adapter;
-	max->i2c.driver = &wf_max6690_driver;
-	strncpy(max->i2c.name, name, I2C_NAME_SIZE-1);
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	info.addr = addr >> 1;
+	info.platform_data = name;
+	strlcpy(info.type, "wf_max6690", I2C_NAME_SIZE);
 
-	if (i2c_attach_client(&max->i2c)) {
+	client = i2c_new_device(adapter, &info);
+	if (client == NULL) {
 		printk(KERN_ERR "windfarm: failed to attach MAX6690 sensor\n");
 		goto fail;
 	}
 
-	if (wf_register_sensor(&max->sens)) {
-		i2c_detach_client(&max->i2c);
-		goto fail;
-	}
-
-	return;
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&client->detected, &client->driver->clients);
+	return client;
 
  fail:
-	kfree(max);
+	return NULL;
 }
 
 static int wf_max6690_attach(struct i2c_adapter *adapter)
@@ -154,16 +158,31 @@
 	return 0;
 }
 
-static int wf_max6690_detach(struct i2c_client *client)
+static int wf_max6690_remove(struct i2c_client *client)
 {
-	struct wf_6690_sensor *max = i2c_to_6690(client);
+	struct wf_6690_sensor *max = i2c_get_clientdata(client);
 
-	max->i2c.adapter = NULL;
+	max->i2c = NULL;
 	wf_unregister_sensor(&max->sens);
 
 	return 0;
 }
 
+static const struct i2c_device_id wf_max6690_id[] = {
+	{ "wf_max6690", 0 },
+	{ }
+};
+
+static struct i2c_driver wf_max6690_driver = {
+	.driver = {
+		.name		= "wf_max6690",
+	},
+	.attach_adapter	= wf_max6690_attach,
+	.probe		= wf_max6690_probe,
+	.remove		= wf_max6690_remove,
+	.id_table	= wf_max6690_id,
+};
+
 static int __init wf_max6690_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c
index 7847e98..5da729e 100644
--- a/drivers/macintosh/windfarm_smu_sat.c
+++ b/drivers/macintosh/windfarm_smu_sat.c
@@ -39,7 +39,7 @@
 	struct mutex		mutex;
 	unsigned long		last_read; /* jiffies when cache last updated */
 	u8			cache[16];
-	struct i2c_client	i2c;
+	struct i2c_client	*i2c;
 	struct device_node	*node;
 };
 
@@ -54,18 +54,6 @@
 };
 
 #define wf_to_sat(c)	container_of(c, struct wf_sat_sensor, sens)
-#define i2c_to_sat(c)	container_of(c, struct wf_sat, i2c)
-
-static int wf_sat_attach(struct i2c_adapter *adapter);
-static int wf_sat_detach(struct i2c_client *client);
-
-static struct i2c_driver wf_sat_driver = {
-	.driver = {
-		.name		= "wf_smu_sat",
-	},
-	.attach_adapter	= wf_sat_attach,
-	.detach_client	= wf_sat_detach,
-};
 
 struct smu_sdbp_header *smu_sat_get_sdb_partition(unsigned int sat_id, int id,
 						  unsigned int *size)
@@ -81,13 +69,13 @@
 	if (sat_id > 1 || (sat = sats[sat_id]) == NULL)
 		return NULL;
 
-	err = i2c_smbus_write_word_data(&sat->i2c, 8, id << 8);
+	err = i2c_smbus_write_word_data(sat->i2c, 8, id << 8);
 	if (err) {
 		printk(KERN_ERR "smu_sat_get_sdb_part wr error %d\n", err);
 		return NULL;
 	}
 
-	err = i2c_smbus_read_word_data(&sat->i2c, 9);
+	err = i2c_smbus_read_word_data(sat->i2c, 9);
 	if (err < 0) {
 		printk(KERN_ERR "smu_sat_get_sdb_part rd len error\n");
 		return NULL;
@@ -105,7 +93,7 @@
 		return NULL;
 
 	for (i = 0; i < len; i += 4) {
-		err = i2c_smbus_read_i2c_block_data(&sat->i2c, 0xa, 4, data);
+		err = i2c_smbus_read_i2c_block_data(sat->i2c, 0xa, 4, data);
 		if (err < 0) {
 			printk(KERN_ERR "smu_sat_get_sdb_part rd err %d\n",
 			       err);
@@ -138,7 +126,7 @@
 {
 	int err;
 
-	err = i2c_smbus_read_i2c_block_data(&sat->i2c, 0x3f, 16, sat->cache);
+	err = i2c_smbus_read_i2c_block_data(sat->i2c, 0x3f, 16, sat->cache);
 	if (err < 0)
 		return err;
 	sat->last_read = jiffies;
@@ -161,7 +149,7 @@
 	int i, err;
 	s32 val;
 
-	if (sat->i2c.adapter == NULL)
+	if (sat->i2c == NULL)
 		return -ENODEV;
 
 	mutex_lock(&sat->mutex);
@@ -193,10 +181,6 @@
 	struct wf_sat *sat = sens->sat;
 
 	if (atomic_dec_and_test(&sat->refcnt)) {
-		if (sat->i2c.adapter) {
-			i2c_detach_client(&sat->i2c);
-			sat->i2c.adapter = NULL;
-		}
 		if (sat->nr >= 0)
 			sats[sat->nr] = NULL;
 		kfree(sat);
@@ -212,15 +196,10 @@
 
 static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev)
 {
-	struct wf_sat *sat;
-	struct wf_sat_sensor *sens;
+	struct i2c_board_info info;
+	struct i2c_client *client;
 	const u32 *reg;
-	const char *loc, *type;
-	u8 addr, chip, core;
-	struct device_node *child;
-	int shift, cpu, index;
-	char *name;
-	int vsens[2], isens[2];
+	u8 addr;
 
 	reg = of_get_property(dev, "reg", NULL);
 	if (reg == NULL)
@@ -228,22 +207,47 @@
 	addr = *reg;
 	DBG(KERN_DEBUG "wf_sat: creating sat at address %x\n", addr);
 
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	info.addr = (addr >> 1) & 0x7f;
+	info.platform_data = dev;
+	strlcpy(info.type, "wf_sat", I2C_NAME_SIZE);
+
+	client = i2c_new_device(adapter, &info);
+	if (client == NULL) {
+		printk(KERN_ERR "windfarm: failed to attach smu-sat to i2c\n");
+		return;
+	}
+
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&client->detected, &client->driver->clients);
+}
+
+static int wf_sat_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device_node *dev = client->dev.platform_data;
+	struct wf_sat *sat;
+	struct wf_sat_sensor *sens;
+	const u32 *reg;
+	const char *loc, *type;
+	u8 chip, core;
+	struct device_node *child;
+	int shift, cpu, index;
+	char *name;
+	int vsens[2], isens[2];
+
 	sat = kzalloc(sizeof(struct wf_sat), GFP_KERNEL);
 	if (sat == NULL)
-		return;
+		return -ENOMEM;
 	sat->nr = -1;
 	sat->node = of_node_get(dev);
 	atomic_set(&sat->refcnt, 0);
 	mutex_init(&sat->mutex);
-	sat->i2c.addr = (addr >> 1) & 0x7f;
-	sat->i2c.adapter = adapter;
-	sat->i2c.driver = &wf_sat_driver;
-	strncpy(sat->i2c.name, "smu-sat", I2C_NAME_SIZE-1);
-
-	if (i2c_attach_client(&sat->i2c)) {
-		printk(KERN_ERR "windfarm: failed to attach smu-sat to i2c\n");
-		goto fail;
-	}
+	sat->i2c = client;
+	i2c_set_clientdata(client, sat);
 
 	vsens[0] = vsens[1] = -1;
 	isens[0] = isens[1] = -1;
@@ -344,10 +348,7 @@
 	if (sat->nr >= 0)
 		sats[sat->nr] = sat;
 
-	return;
-
- fail:
-	kfree(sat);
+	return 0;
 }
 
 static int wf_sat_attach(struct i2c_adapter *adapter)
@@ -366,16 +367,32 @@
 	return 0;
 }
 
-static int wf_sat_detach(struct i2c_client *client)
+static int wf_sat_remove(struct i2c_client *client)
 {
-	struct wf_sat *sat = i2c_to_sat(client);
+	struct wf_sat *sat = i2c_get_clientdata(client);
 
 	/* XXX TODO */
 
-	sat->i2c.adapter = NULL;
+	sat->i2c = NULL;
+	i2c_set_clientdata(client, NULL);
 	return 0;
 }
 
+static const struct i2c_device_id wf_sat_id[] = {
+	{ "wf_sat", 0 },
+	{ }
+};
+
+static struct i2c_driver wf_sat_driver = {
+	.driver = {
+		.name		= "wf_smu_sat",
+	},
+	.attach_adapter	= wf_sat_attach,
+	.probe		= wf_sat_probe,
+	.remove		= wf_sat_remove,
+	.id_table	= wf_sat_id,
+};
+
 static int __init sat_sensors_init(void)
 {
 	return i2c_add_driver(&wf_sat_driver);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3fd8b1e..48db308 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -19,7 +19,6 @@
 #include <linux/slab.h>
 #include <linux/idr.h>
 #include <linux/hdreg.h>
-#include <linux/blktrace_api.h>
 
 #include <trace/events/block.h>
 
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index 89fec05..9118613 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -48,6 +48,20 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called eeprom.
 
+config EEPROM_MAX6875
+	tristate "Maxim MAX6874/5 power supply supervisor"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get read-only support for the user EEPROM of
+	  the Maxim MAX6874/5 EEPROM-programmable, quad power-supply
+	  sequencer/supervisor.
+
+	  All other features of this chip should be accessed via i2c-dev.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max6875.
+
+
 config EEPROM_93CX6
 	tristate "EEPROM 93CX6 support"
 	help
diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile
index 539dd8f..df3d68f 100644
--- a/drivers/misc/eeprom/Makefile
+++ b/drivers/misc/eeprom/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_EEPROM_AT24)	+= at24.o
 obj-$(CONFIG_EEPROM_AT25)	+= at25.o
 obj-$(CONFIG_EEPROM_LEGACY)	+= eeprom.o
+obj-$(CONFIG_EEPROM_MAX6875)	+= max6875.o
 obj-$(CONFIG_EEPROM_93CX6)	+= eeprom_93cx6.o
diff --git a/drivers/i2c/chips/max6875.c b/drivers/misc/eeprom/max6875.c
similarity index 99%
rename from drivers/i2c/chips/max6875.c
rename to drivers/misc/eeprom/max6875.c
index 033d9d8..3c0c58e 100644
--- a/drivers/i2c/chips/max6875.c
+++ b/drivers/misc/eeprom/max6875.c
@@ -3,7 +3,7 @@
 
     Copyright (C) 2005 Ben Gardner <bgardner@wabtec.com>
 
-    Based on i2c/chips/eeprom.c
+    Based on eeprom.c
 
     The MAX6875 has a bank of registers and two banks of EEPROM.
     Address ranges are defined as follows:
diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c
index 30900b3..2b38f39 100644
--- a/drivers/net/ps3_gelic_net.c
+++ b/drivers/net/ps3_gelic_net.c
@@ -1648,7 +1648,7 @@
 		result = -ENOMEM;
 		goto fail_alloc_card;
 	}
-	ps3_system_bus_set_driver_data(dev, card);
+	ps3_system_bus_set_drvdata(dev, card);
 	card->dev = dev;
 
 	/* get internal vlan info */
@@ -1749,7 +1749,7 @@
 					       bus_id(card),
 					       0, 0);
 fail_status_indicator:
-	ps3_system_bus_set_driver_data(dev, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 	kfree(netdev_card(netdev)->unalign);
 	free_netdev(netdev);
 fail_alloc_card:
@@ -1766,7 +1766,7 @@
 
 static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev)
 {
-	struct gelic_card *card = ps3_system_bus_get_driver_data(dev);
+	struct gelic_card *card = ps3_system_bus_get_drvdata(dev);
 	struct net_device *netdev0;
 	pr_debug("%s: called\n", __func__);
 
@@ -1803,7 +1803,7 @@
 	kfree(netdev_card(netdev0)->unalign);
 	free_netdev(netdev0);
 
-	ps3_system_bus_set_driver_data(dev, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 
 	ps3_dma_region_free(dev->d_region);
 
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index f17513d..88cb740 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -706,7 +706,7 @@
 	ps3_vuart_read_async(dev, PS3_SM_RX_MSG_LEN_MIN);
 }
 
-static int ps3_sys_manager_probe(struct ps3_system_bus_device *dev)
+static int __devinit ps3_sys_manager_probe(struct ps3_system_bus_device *dev)
 {
 	int result;
 	struct ps3_sys_manager_ops ops;
diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
index 235e87f..e82d8c9 100644
--- a/drivers/ps3/ps3av.c
+++ b/drivers/ps3/ps3av.c
@@ -80,12 +80,12 @@
 	{     0, }, /* auto */
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_480I,       A_N,  720,  480},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_480P,       A_N,  720,  480},
-	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_60HZ,  A_N, 1280,  720},
+	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_60HZ,  A_W, 1280,  720},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080I_60HZ, A_W, 1920, 1080},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080P_60HZ, A_W, 1920, 1080},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_576I,       A_N,  720,  576},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_576P,       A_N,  720,  576},
-	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_50HZ,  A_N, 1280,  720},
+	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_720P_50HZ,  A_W, 1280,  720},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080I_50HZ, A_W, 1920, 1080},
 	{YUV444, XRGB, PS3AV_CMD_VIDEO_VID_1080P_50HZ, A_W, 1920, 1080},
 	{  RGB8, XRGB, PS3AV_CMD_VIDEO_VID_WXGA,       A_W, 1280,  768},
@@ -937,7 +937,7 @@
 
 EXPORT_SYMBOL_GPL(ps3av_audio_mute);
 
-static int ps3av_probe(struct ps3_system_bus_device *dev)
+static int __devinit ps3av_probe(struct ps3_system_bus_device *dev)
 {
 	int res;
 	int id;
@@ -1048,7 +1048,7 @@
 	.shutdown = ps3av_shutdown,
 };
 
-static int ps3av_module_init(void)
+static int __init ps3av_module_init(void)
 {
 	int error;
 
diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c
index 716596e..f555fed 100644
--- a/drivers/ps3/ps3av_cmd.c
+++ b/drivers/ps3/ps3av_cmd.c
@@ -21,9 +21,10 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
+
 #include <asm/ps3av.h>
-#include <asm/ps3fb.h>
 #include <asm/ps3.h>
+#include <asm/ps3gpu.h>
 
 #include "vuart.h"
 
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 442bb98..e5b84db 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -5,8 +5,7 @@
  *		    Carsten Otte <Cotte@de.ibm.com>
  *		    Martin Schwidefsky <schwidefsky@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999-2001
- *
+ * Copyright IBM Corp. 1999, 2009
  */
 
 #define KMSG_COMPONENT "dasd"
@@ -61,6 +60,7 @@
 static void dasd_device_tasklet(struct dasd_device *);
 static void dasd_block_tasklet(struct dasd_block *);
 static void do_kick_device(struct work_struct *);
+static void do_restore_device(struct work_struct *);
 static void dasd_return_cqr_cb(struct dasd_ccw_req *, void *);
 static void dasd_device_timeout(unsigned long);
 static void dasd_block_timeout(unsigned long);
@@ -109,6 +109,7 @@
 	device->timer.function = dasd_device_timeout;
 	device->timer.data = (unsigned long) device;
 	INIT_WORK(&device->kick_work, do_kick_device);
+	INIT_WORK(&device->restore_device, do_restore_device);
 	device->state = DASD_STATE_NEW;
 	device->target = DASD_STATE_NEW;
 
@@ -512,6 +513,25 @@
 }
 
 /*
+ * dasd_restore_device will schedule a call do do_restore_device to the kernel
+ * event daemon.
+ */
+static void do_restore_device(struct work_struct *work)
+{
+	struct dasd_device *device = container_of(work, struct dasd_device,
+						  restore_device);
+	device->cdev->drv->restore(device->cdev);
+	dasd_put_device(device);
+}
+
+void dasd_restore_device(struct dasd_device *device)
+{
+	dasd_get_device(device);
+	/* queue call to dasd_restore_device to the kernel event daemon. */
+	schedule_work(&device->restore_device);
+}
+
+/*
  * Set the target state for a device and starts the state change.
  */
 void dasd_set_target_state(struct dasd_device *device, int target)
@@ -908,6 +928,12 @@
 		DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
 			      "start_IO: -EIO device gone, retry");
 		break;
+	case -EINVAL:
+		/* most likely caused in power management context */
+		DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
+			      "start_IO: -EINVAL device currently "
+			      "not accessible");
+		break;
 	default:
 		/* internal error 11 - unknown rc */
 		snprintf(errorstring, ERRORLENGTH, "11 %d", rc);
@@ -2400,6 +2426,12 @@
 	case CIO_OPER:
 		/* FIXME: add a sanity check. */
 		device->stopped &= ~DASD_STOPPED_DC_WAIT;
+		if (device->stopped & DASD_UNRESUMED_PM) {
+			device->stopped &= ~DASD_UNRESUMED_PM;
+			dasd_restore_device(device);
+			ret = 1;
+			break;
+		}
 		dasd_schedule_device_bh(device);
 		if (device->block)
 			dasd_schedule_block_bh(device->block);
@@ -2410,6 +2442,79 @@
 	return ret;
 }
 
+int dasd_generic_pm_freeze(struct ccw_device *cdev)
+{
+	struct dasd_ccw_req *cqr, *n;
+	int rc;
+	struct list_head freeze_queue;
+	struct dasd_device *device = dasd_device_from_cdev(cdev);
+
+	if (IS_ERR(device))
+		return PTR_ERR(device);
+	/* disallow new I/O  */
+	device->stopped |= DASD_STOPPED_PM;
+	/* clear active requests */
+	INIT_LIST_HEAD(&freeze_queue);
+	spin_lock_irq(get_ccwdev_lock(cdev));
+	rc = 0;
+	list_for_each_entry_safe(cqr, n, &device->ccw_queue, devlist) {
+		/* Check status and move request to flush_queue */
+		if (cqr->status == DASD_CQR_IN_IO) {
+			rc = device->discipline->term_IO(cqr);
+			if (rc) {
+				/* unable to terminate requeust */
+				dev_err(&device->cdev->dev,
+					"Unable to terminate request %p "
+					"on suspend\n", cqr);
+				spin_unlock_irq(get_ccwdev_lock(cdev));
+				dasd_put_device(device);
+				return rc;
+			}
+		}
+		list_move_tail(&cqr->devlist, &freeze_queue);
+	}
+
+	spin_unlock_irq(get_ccwdev_lock(cdev));
+
+	list_for_each_entry_safe(cqr, n, &freeze_queue, devlist) {
+		wait_event(dasd_flush_wq,
+			   (cqr->status != DASD_CQR_CLEAR_PENDING));
+		if (cqr->status == DASD_CQR_CLEARED)
+			cqr->status = DASD_CQR_QUEUED;
+	}
+	/* move freeze_queue to start of the ccw_queue */
+	spin_lock_irq(get_ccwdev_lock(cdev));
+	list_splice_tail(&freeze_queue, &device->ccw_queue);
+	spin_unlock_irq(get_ccwdev_lock(cdev));
+
+	if (device->discipline->freeze)
+		rc = device->discipline->freeze(device);
+
+	dasd_put_device(device);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(dasd_generic_pm_freeze);
+
+int dasd_generic_restore_device(struct ccw_device *cdev)
+{
+	struct dasd_device *device = dasd_device_from_cdev(cdev);
+	int rc = 0;
+
+	if (IS_ERR(device))
+		return PTR_ERR(device);
+
+	dasd_schedule_device_bh(device);
+	if (device->block)
+		dasd_schedule_block_bh(device->block);
+
+	if (device->discipline->restore)
+		rc = device->discipline->restore(device);
+
+	dasd_put_device(device);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(dasd_generic_restore_device);
+
 static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
 						   void *rdc_buffer,
 						   int rdc_buffer_size,
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index e77666c..4cac5b5 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -1098,6 +1098,7 @@
 	spin_unlock(&dasd_devmap_lock);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(dasd_get_uid);
 
 /*
  * Register the given device unique identifier into devmap struct.
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index cf0cfdb..1c28ec3 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -5,10 +5,9 @@
  *		    Carsten Otte <Cotte@de.ibm.com>
  *		    Martin Schwidefsky <schwidefsky@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
+ * Copyright IBM Corp. 1999, 2009
  * EMC Symmetrix ioctl Copyright EMC Corporation, 2008
  * Author.........: Nigel Hislop <hislop_nigel@emc.com>
- *
  */
 
 #define KMSG_COMPONENT "dasd"
@@ -104,17 +103,6 @@
 	return dasd_generic_set_online(cdev, &dasd_eckd_discipline);
 }
 
-static struct ccw_driver dasd_eckd_driver = {
-	.name        = "dasd-eckd",
-	.owner       = THIS_MODULE,
-	.ids         = dasd_eckd_ids,
-	.probe       = dasd_eckd_probe,
-	.remove      = dasd_generic_remove,
-	.set_offline = dasd_generic_set_offline,
-	.set_online  = dasd_eckd_set_online,
-	.notify      = dasd_generic_notify,
-};
-
 static const int sizes_trk0[] = { 28, 148, 84 };
 #define LABEL_SIZE 140
 
@@ -3236,6 +3224,98 @@
 		dasd_eckd_dump_sense_ccw(device, req, irb);
 }
 
+int dasd_eckd_pm_freeze(struct dasd_device *device)
+{
+	/*
+	 * the device should be disconnected from our LCU structure
+	 * on restore we will reconnect it and reread LCU specific
+	 * information like PAV support that might have changed
+	 */
+	dasd_alias_remove_device(device);
+	dasd_alias_disconnect_device_from_lcu(device);
+
+	return 0;
+}
+
+int dasd_eckd_restore_device(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private;
+	int is_known, rc;
+	struct dasd_uid temp_uid;
+
+	/* allow new IO again */
+	device->stopped &= ~DASD_STOPPED_PM;
+
+	private = (struct dasd_eckd_private *) device->private;
+
+	/* Read Configuration Data */
+	rc = dasd_eckd_read_conf(device);
+	if (rc)
+		goto out_err;
+
+	/* Generate device unique id and register in devmap */
+	rc = dasd_eckd_generate_uid(device, &private->uid);
+	dasd_get_uid(device->cdev, &temp_uid);
+	if (memcmp(&private->uid, &temp_uid, sizeof(struct dasd_uid)) != 0)
+		dev_err(&device->cdev->dev, "The UID of the DASD has changed\n");
+	if (rc)
+		goto out_err;
+	dasd_set_uid(device->cdev, &private->uid);
+
+	/* register lcu with alias handling, enable PAV if this is a new lcu */
+	is_known = dasd_alias_make_device_known_to_lcu(device);
+	if (is_known < 0)
+		return is_known;
+	if (!is_known) {
+		/* new lcu found */
+		rc = dasd_eckd_validate_server(device); /* will switch pav on */
+		if (rc)
+			goto out_err;
+	}
+
+	/* Read Feature Codes */
+	rc = dasd_eckd_read_features(device);
+	if (rc)
+		goto out_err;
+
+	/* Read Device Characteristics */
+	memset(&private->rdc_data, 0, sizeof(private->rdc_data));
+	rc = dasd_generic_read_dev_chars(device, "ECKD",
+					 &private->rdc_data, 64);
+	if (rc) {
+		DBF_EVENT(DBF_WARNING,
+			  "Read device characteristics failed, rc=%d for "
+			  "device: %s", rc, dev_name(&device->cdev->dev));
+		goto out_err;
+	}
+
+	/* add device to alias management */
+	dasd_alias_add_device(device);
+
+	return 0;
+
+out_err:
+	/*
+	 * if the resume failed for the DASD we put it in
+	 * an UNRESUMED stop state
+	 */
+	device->stopped |= DASD_UNRESUMED_PM;
+	return 0;
+}
+
+static struct ccw_driver dasd_eckd_driver = {
+	.name	     = "dasd-eckd",
+	.owner	     = THIS_MODULE,
+	.ids	     = dasd_eckd_ids,
+	.probe	     = dasd_eckd_probe,
+	.remove      = dasd_generic_remove,
+	.set_offline = dasd_generic_set_offline,
+	.set_online  = dasd_eckd_set_online,
+	.notify      = dasd_generic_notify,
+	.freeze      = dasd_generic_pm_freeze,
+	.thaw	     = dasd_generic_restore_device,
+	.restore     = dasd_generic_restore_device,
+};
 
 /*
  * max_blocks is dependent on the amount of storage that is available
@@ -3274,6 +3354,8 @@
 	.dump_sense_dbf = dasd_eckd_dump_sense_dbf,
 	.fill_info = dasd_eckd_fill_info,
 	.ioctl = dasd_eckd_ioctl,
+	.freeze = dasd_eckd_pm_freeze,
+	.restore = dasd_eckd_restore_device,
 };
 
 static int __init
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 597c6ff..e21ee73 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -2,8 +2,7 @@
  * File...........: linux/drivers/s390/block/dasd_fba.c
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
- *
+ * Copyright IBM Corp. 1999, 2009
  */
 
 #define KMSG_COMPONENT "dasd"
@@ -75,6 +74,9 @@
 	.set_offline = dasd_generic_set_offline,
 	.set_online  = dasd_fba_set_online,
 	.notify      = dasd_generic_notify,
+	.freeze      = dasd_generic_pm_freeze,
+	.thaw	     = dasd_generic_restore_device,
+	.restore     = dasd_generic_restore_device,
 };
 
 static void
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index f97ceb7..fd63b2f 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -4,8 +4,7 @@
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
  *		    Martin Schwidefsky <schwidefsky@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
- * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
- *
+ * Copyright IBM Corp. 1999, 2009
  */
 
 #ifndef DASD_INT_H
@@ -295,6 +294,10 @@
 	int (*fill_geometry) (struct dasd_block *, struct hd_geometry *);
 	int (*fill_info) (struct dasd_device *, struct dasd_information2_t *);
 	int (*ioctl) (struct dasd_block *, unsigned int, void __user *);
+
+	/* suspend/resume functions */
+	int (*freeze) (struct dasd_device *);
+	int (*restore) (struct dasd_device *);
 };
 
 extern struct dasd_discipline *dasd_diag_discipline_pointer;
@@ -367,6 +370,7 @@
 	atomic_t tasklet_scheduled;
         struct tasklet_struct tasklet;
 	struct work_struct kick_work;
+	struct work_struct restore_device;
 	struct timer_list timer;
 
 	debug_info_t *debug_area;
@@ -410,6 +414,8 @@
 #define DASD_STOPPED_PENDING 4         /* long busy */
 #define DASD_STOPPED_DC_WAIT 8         /* disconnected, wait */
 #define DASD_STOPPED_SU      16        /* summary unit check handling */
+#define DASD_STOPPED_PM      32        /* pm state transition */
+#define DASD_UNRESUMED_PM    64        /* pm resume failed state */
 
 /* per device flags */
 #define DASD_FLAG_OFFLINE	3	/* device is in offline processing */
@@ -556,6 +562,7 @@
 void dasd_enable_device(struct dasd_device *);
 void dasd_set_target_state(struct dasd_device *, int);
 void dasd_kick_device(struct dasd_device *);
+void dasd_restore_device(struct dasd_device *);
 
 void dasd_add_request_head(struct dasd_ccw_req *);
 void dasd_add_request_tail(struct dasd_ccw_req *);
@@ -578,6 +585,8 @@
 int dasd_generic_set_offline (struct ccw_device *cdev);
 int dasd_generic_notify(struct ccw_device *, int);
 void dasd_generic_handle_state_change(struct dasd_device *);
+int dasd_generic_pm_freeze(struct ccw_device *);
+int dasd_generic_restore_device(struct ccw_device *);
 
 int dasd_generic_read_dev_chars(struct dasd_device *, char *, void *, int);
 char *dasd_get_sense(struct irb *);
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index b21caf1..016f9e9 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -14,10 +14,11 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/blkdev.h>
-#include <asm/extmem.h>
-#include <asm/io.h>
 #include <linux/completion.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <asm/extmem.h>
+#include <asm/io.h>
 
 #define DCSSBLK_NAME "dcssblk"
 #define DCSSBLK_MINORS_PER_DISK 1
@@ -940,11 +941,94 @@
 }
 
 /*
+ * Suspend / Resume
+ */
+static int dcssblk_freeze(struct device *dev)
+{
+	struct dcssblk_dev_info *dev_info;
+	int rc = 0;
+
+	list_for_each_entry(dev_info, &dcssblk_devices, lh) {
+		switch (dev_info->segment_type) {
+			case SEG_TYPE_SR:
+			case SEG_TYPE_ER:
+			case SEG_TYPE_SC:
+				if (!dev_info->is_shared)
+					rc = -EINVAL;
+				break;
+			default:
+				rc = -EINVAL;
+				break;
+		}
+		if (rc)
+			break;
+	}
+	if (rc)
+		pr_err("Suspend failed because device %s is writeable.\n",
+		       dev_info->segment_name);
+	return rc;
+}
+
+static int dcssblk_restore(struct device *dev)
+{
+	struct dcssblk_dev_info *dev_info;
+	struct segment_info *entry;
+	unsigned long start, end;
+	int rc = 0;
+
+	list_for_each_entry(dev_info, &dcssblk_devices, lh) {
+		list_for_each_entry(entry, &dev_info->seg_list, lh) {
+			segment_unload(entry->segment_name);
+			rc = segment_load(entry->segment_name, SEGMENT_SHARED,
+					  &start, &end);
+			if (rc < 0) {
+// TODO in_use check ?
+				segment_warning(rc, entry->segment_name);
+				goto out_panic;
+			}
+			if (start != entry->start || end != entry->end) {
+				pr_err("Mismatch of start / end address after "
+				       "resuming device %s\n",
+				       entry->segment_name);
+				goto out_panic;
+			}
+		}
+	}
+	return 0;
+out_panic:
+	panic("fatal dcssblk resume error\n");
+}
+
+static int dcssblk_thaw(struct device *dev)
+{
+	return 0;
+}
+
+static struct dev_pm_ops dcssblk_pm_ops = {
+	.freeze		= dcssblk_freeze,
+	.thaw		= dcssblk_thaw,
+	.restore	= dcssblk_restore,
+};
+
+static struct platform_driver dcssblk_pdrv = {
+	.driver = {
+		.name	= "dcssblk",
+		.owner	= THIS_MODULE,
+		.pm	= &dcssblk_pm_ops,
+	},
+};
+
+static struct platform_device *dcssblk_pdev;
+
+
+/*
  * The init/exit functions.
  */
 static void __exit
 dcssblk_exit(void)
 {
+	platform_device_unregister(dcssblk_pdev);
+	platform_driver_unregister(&dcssblk_pdrv);
 	root_device_unregister(dcssblk_root_dev);
 	unregister_blkdev(dcssblk_major, DCSSBLK_NAME);
 }
@@ -954,30 +1038,44 @@
 {
 	int rc;
 
+	rc = platform_driver_register(&dcssblk_pdrv);
+	if (rc)
+		return rc;
+
+	dcssblk_pdev = platform_device_register_simple("dcssblk", -1, NULL,
+							0);
+	if (IS_ERR(dcssblk_pdev)) {
+		rc = PTR_ERR(dcssblk_pdev);
+		goto out_pdrv;
+	}
+
 	dcssblk_root_dev = root_device_register("dcssblk");
-	if (IS_ERR(dcssblk_root_dev))
-		return PTR_ERR(dcssblk_root_dev);
+	if (IS_ERR(dcssblk_root_dev)) {
+		rc = PTR_ERR(dcssblk_root_dev);
+		goto out_pdev;
+	}
 	rc = device_create_file(dcssblk_root_dev, &dev_attr_add);
-	if (rc) {
-		root_device_unregister(dcssblk_root_dev);
-		return rc;
-	}
+	if (rc)
+		goto out_root;
 	rc = device_create_file(dcssblk_root_dev, &dev_attr_remove);
-	if (rc) {
-		root_device_unregister(dcssblk_root_dev);
-		return rc;
-	}
+	if (rc)
+		goto out_root;
 	rc = register_blkdev(0, DCSSBLK_NAME);
-	if (rc < 0) {
-		root_device_unregister(dcssblk_root_dev);
-		return rc;
-	}
+	if (rc < 0)
+		goto out_root;
 	dcssblk_major = rc;
 	init_rwsem(&dcssblk_devices_sem);
 
 	dcssblk_check_params();
-
 	return 0;
+
+out_root:
+	root_device_unregister(dcssblk_root_dev);
+out_pdev:
+	platform_device_unregister(dcssblk_pdev);
+out_pdrv:
+	platform_driver_unregister(&dcssblk_pdrv);
+	return rc;
 }
 
 module_init(dcssblk_init);
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 0ae0c83..2e9e1ec 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -39,7 +39,10 @@
 #include <linux/hdreg.h>  /* HDIO_GETGEO */
 #include <linux/sysdev.h>
 #include <linux/bio.h>
+#include <linux/suspend.h>
+#include <linux/platform_device.h>
 #include <asm/uaccess.h>
+#include <asm/checksum.h>
 
 #define XPRAM_NAME	"xpram"
 #define XPRAM_DEVS	1	/* one partition */
@@ -48,6 +51,7 @@
 typedef struct {
 	unsigned int	size;		/* size of xpram segment in pages */
 	unsigned int	offset;		/* start page of xpram segment */
+	unsigned int	csum;		/* partition checksum for suspend */
 } xpram_device_t;
 
 static xpram_device_t xpram_devices[XPRAM_MAX_DEVS];
@@ -138,7 +142,7 @@
 /*
  * Check if xpram is available.
  */
-static int __init xpram_present(void)
+static int xpram_present(void)
 {
 	unsigned long mem_page;
 	int rc;
@@ -154,7 +158,7 @@
 /*
  * Return index of the last available xpram page.
  */
-static unsigned long __init xpram_highest_page_index(void)
+static unsigned long xpram_highest_page_index(void)
 {
 	unsigned int page_index, add_bit;
 	unsigned long mem_page;
@@ -383,6 +387,106 @@
 }
 
 /*
+ * Save checksums for all partitions.
+ */
+static int xpram_save_checksums(void)
+{
+	unsigned long mem_page;
+	int rc, i;
+
+	rc = 0;
+	mem_page = (unsigned long) __get_free_page(GFP_KERNEL);
+	if (!mem_page)
+		return -ENOMEM;
+	for (i = 0; i < xpram_devs; i++) {
+		rc = xpram_page_in(mem_page, xpram_devices[i].offset);
+		if (rc)
+			goto fail;
+		xpram_devices[i].csum = csum_partial((const void *) mem_page,
+						     PAGE_SIZE, 0);
+	}
+fail:
+	free_page(mem_page);
+	return rc ? -ENXIO : 0;
+}
+
+/*
+ * Verify checksums for all partitions.
+ */
+static int xpram_validate_checksums(void)
+{
+	unsigned long mem_page;
+	unsigned int csum;
+	int rc, i;
+
+	rc = 0;
+	mem_page = (unsigned long) __get_free_page(GFP_KERNEL);
+	if (!mem_page)
+		return -ENOMEM;
+	for (i = 0; i < xpram_devs; i++) {
+		rc = xpram_page_in(mem_page, xpram_devices[i].offset);
+		if (rc)
+			goto fail;
+		csum = csum_partial((const void *) mem_page, PAGE_SIZE, 0);
+		if (xpram_devices[i].csum != csum) {
+			rc = -EINVAL;
+			goto fail;
+		}
+	}
+fail:
+	free_page(mem_page);
+	return rc ? -ENXIO : 0;
+}
+
+/*
+ * Resume failed: Print error message and call panic.
+ */
+static void xpram_resume_error(const char *message)
+{
+	pr_err("Resume error: %s\n", message);
+	panic("xpram resume error\n");
+}
+
+/*
+ * Check if xpram setup changed between suspend and resume.
+ */
+static int xpram_restore(struct device *dev)
+{
+	if (!xpram_pages)
+		return 0;
+	if (xpram_present() != 0)
+		xpram_resume_error("xpram disappeared");
+	if (xpram_pages != xpram_highest_page_index() + 1)
+		xpram_resume_error("Size of xpram changed");
+	if (xpram_validate_checksums())
+		xpram_resume_error("Data of xpram changed");
+	return 0;
+}
+
+/*
+ * Save necessary state in suspend.
+ */
+static int xpram_freeze(struct device *dev)
+{
+	return xpram_save_checksums();
+}
+
+static struct dev_pm_ops xpram_pm_ops = {
+	.freeze		= xpram_freeze,
+	.restore	= xpram_restore,
+};
+
+static struct platform_driver xpram_pdrv = {
+	.driver = {
+		.name	= XPRAM_NAME,
+		.owner	= THIS_MODULE,
+		.pm	= &xpram_pm_ops,
+	},
+};
+
+static struct platform_device *xpram_pdev;
+
+/*
  * Finally, the init/exit functions.
  */
 static void __exit xpram_exit(void)
@@ -394,6 +498,8 @@
 		put_disk(xpram_disks[i]);
 	}
 	unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME);
+	platform_device_unregister(xpram_pdev);
+	platform_driver_unregister(&xpram_pdrv);
 }
 
 static int __init xpram_init(void)
@@ -411,7 +517,24 @@
 	rc = xpram_setup_sizes(xpram_pages);
 	if (rc)
 		return rc;
-	return xpram_setup_blkdev();
+	rc = platform_driver_register(&xpram_pdrv);
+	if (rc)
+		return rc;
+	xpram_pdev = platform_device_register_simple(XPRAM_NAME, -1, NULL, 0);
+	if (IS_ERR(xpram_pdev)) {
+		rc = PTR_ERR(xpram_pdev);
+		goto fail_platform_driver_unregister;
+	}
+	rc = xpram_setup_blkdev();
+	if (rc)
+		goto fail_platform_device_unregister;
+	return 0;
+
+fail_platform_device_unregister:
+	platform_device_unregister(xpram_pdev);
+fail_platform_driver_unregister:
+	platform_driver_unregister(&xpram_pdrv);
+	return rc;
 }
 
 module_init(xpram_init);
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index c639361..04dc734 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1,14 +1,12 @@
 /*
- *  drivers/s390/char/con3215.c
- *    3215 line mode terminal driver.
+ * 3215 line mode terminal driver.
  *
- *  S390 version
- *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ * Copyright IBM Corp. 1999, 2009
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
  *
- *  Updated:
- *   Aug-2000: Added tab support
- *	       Dan Morrison, IBM Corporation (dmorriso@cse.buffalo.edu)
+ * Updated:
+ *  Aug-2000: Added tab support
+ *	      Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu>
  */
 
 #include <linux/module.h>
@@ -56,6 +54,7 @@
 #define RAW3215_CLOSING	    32	      /* set while in close process */
 #define RAW3215_TIMER_RUNS  64	      /* set if the output delay timer is on */
 #define RAW3215_FLUSHING    128	      /* set to flush buffer (no delay) */
+#define RAW3215_FROZEN	    256	      /* set if 3215 is frozen for suspend */
 
 #define TAB_STOP_SIZE	    8	      /* tab stop size */
 
@@ -111,8 +110,8 @@
 /*
  * Get a request structure from the free list
  */
-static inline struct raw3215_req *
-raw3215_alloc_req(void) {
+static inline struct raw3215_req *raw3215_alloc_req(void)
+{
 	struct raw3215_req *req;
 	unsigned long flags;
 
@@ -126,8 +125,8 @@
 /*
  * Put a request structure back to the free list
  */
-static inline void
-raw3215_free_req(struct raw3215_req *req) {
+static inline void raw3215_free_req(struct raw3215_req *req)
+{
 	unsigned long flags;
 
 	if (req->type == RAW3215_FREE)
@@ -145,8 +144,7 @@
  * because a 3215 terminal won't accept a new read before the old one is
  * completed.
  */
-static void
-raw3215_mk_read_req(struct raw3215_info *raw)
+static void raw3215_mk_read_req(struct raw3215_info *raw)
 {
 	struct raw3215_req *req;
 	struct ccw1 *ccw;
@@ -174,8 +172,7 @@
  * buffer to the 3215 device. If a queued write exists it is replaced by
  * the new, probably lengthened request.
  */
-static void
-raw3215_mk_write_req(struct raw3215_info *raw)
+static void raw3215_mk_write_req(struct raw3215_info *raw)
 {
 	struct raw3215_req *req;
 	struct ccw1 *ccw;
@@ -251,8 +248,7 @@
 /*
  * Start a read or a write request
  */
-static void
-raw3215_start_io(struct raw3215_info *raw)
+static void raw3215_start_io(struct raw3215_info *raw)
 {
 	struct raw3215_req *req;
 	int res;
@@ -290,8 +286,7 @@
 /*
  * Function to start a delayed output after RAW3215_TIMEOUT seconds
  */
-static void
-raw3215_timeout(unsigned long __data)
+static void raw3215_timeout(unsigned long __data)
 {
 	struct raw3215_info *raw = (struct raw3215_info *) __data;
 	unsigned long flags;
@@ -300,8 +295,10 @@
 	if (raw->flags & RAW3215_TIMER_RUNS) {
 		del_timer(&raw->timer);
 		raw->flags &= ~RAW3215_TIMER_RUNS;
-		raw3215_mk_write_req(raw);
-		raw3215_start_io(raw);
+		if (!(raw->flags & RAW3215_FROZEN)) {
+			raw3215_mk_write_req(raw);
+			raw3215_start_io(raw);
+		}
 	}
 	spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
 }
@@ -312,10 +309,9 @@
  * amount of data is bigger than RAW3215_MIN_WRITE. If a write is not
  * done immediately a timer is started with a delay of RAW3215_TIMEOUT.
  */
-static inline void
-raw3215_try_io(struct raw3215_info *raw)
+static inline void raw3215_try_io(struct raw3215_info *raw)
 {
-	if (!(raw->flags & RAW3215_ACTIVE))
+	if (!(raw->flags & RAW3215_ACTIVE) || (raw->flags & RAW3215_FROZEN))
 		return;
 	if (raw->queued_read != NULL)
 		raw3215_start_io(raw);
@@ -359,8 +355,8 @@
 /*
  * Interrupt routine, called from common io layer
  */
-static void
-raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
+static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
+			struct irb *irb)
 {
 	struct raw3215_info *raw;
 	struct raw3215_req *req;
@@ -459,14 +455,40 @@
 }
 
 /*
+ * Drop the oldest line from the output buffer.
+ */
+static void raw3215_drop_line(struct raw3215_info *raw)
+{
+	int ix;
+	char ch;
+
+	BUG_ON(raw->written != 0);
+	ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1);
+	while (raw->count > 0) {
+		ch = raw->buffer[ix];
+		ix = (ix + 1) & (RAW3215_BUFFER_SIZE - 1);
+		raw->count--;
+		if (ch == 0x15)
+			break;
+	}
+	raw->head = ix;
+}
+
+/*
  * Wait until length bytes are available int the output buffer.
  * Has to be called with the s390irq lock held. Can be called
  * disabled.
  */
-static void
-raw3215_make_room(struct raw3215_info *raw, unsigned int length)
+static void raw3215_make_room(struct raw3215_info *raw, unsigned int length)
 {
 	while (RAW3215_BUFFER_SIZE - raw->count < length) {
+		/* While console is frozen for suspend we have no other
+		 * choice but to drop message from the buffer to make
+		 * room for even more messages. */
+		if (raw->flags & RAW3215_FROZEN) {
+			raw3215_drop_line(raw);
+			continue;
+		}
 		/* there might be a request pending */
 		raw->flags |= RAW3215_FLUSHING;
 		raw3215_mk_write_req(raw);
@@ -488,8 +510,8 @@
 /*
  * String write routine for 3215 devices
  */
-static void
-raw3215_write(struct raw3215_info *raw, const char *str, unsigned int length)
+static void raw3215_write(struct raw3215_info *raw, const char *str,
+			  unsigned int length)
 {
 	unsigned long flags;
 	int c, count;
@@ -529,8 +551,7 @@
 /*
  * Put character routine for 3215 devices
  */
-static void
-raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
+static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
 {
 	unsigned long flags;
 	unsigned int length, i;
@@ -566,8 +587,7 @@
  * Flush routine, it simply sets the flush flag and tries to start
  * pending IO.
  */
-static void
-raw3215_flush_buffer(struct raw3215_info *raw)
+static void raw3215_flush_buffer(struct raw3215_info *raw)
 {
 	unsigned long flags;
 
@@ -583,8 +603,7 @@
 /*
  * Fire up a 3215 device.
  */
-static int
-raw3215_startup(struct raw3215_info *raw)
+static int raw3215_startup(struct raw3215_info *raw)
 {
 	unsigned long flags;
 
@@ -602,8 +621,7 @@
 /*
  * Shutdown a 3215 device.
  */
-static void
-raw3215_shutdown(struct raw3215_info *raw)
+static void raw3215_shutdown(struct raw3215_info *raw)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	unsigned long flags;
@@ -628,8 +646,7 @@
 	spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
 }
 
-static int
-raw3215_probe (struct ccw_device *cdev)
+static int raw3215_probe (struct ccw_device *cdev)
 {
 	struct raw3215_info *raw;
 	int line;
@@ -675,8 +692,7 @@
 	return 0;
 }
 
-static void
-raw3215_remove (struct ccw_device *cdev)
+static void raw3215_remove (struct ccw_device *cdev)
 {
 	struct raw3215_info *raw;
 
@@ -689,8 +705,7 @@
 	}
 }
 
-static int
-raw3215_set_online (struct ccw_device *cdev)
+static int raw3215_set_online (struct ccw_device *cdev)
 {
 	struct raw3215_info *raw;
 
@@ -701,8 +716,7 @@
 	return raw3215_startup(raw);
 }
 
-static int
-raw3215_set_offline (struct ccw_device *cdev)
+static int raw3215_set_offline (struct ccw_device *cdev)
 {
 	struct raw3215_info *raw;
 
@@ -715,6 +729,36 @@
 	return 0;
 }
 
+static int raw3215_pm_stop(struct ccw_device *cdev)
+{
+	struct raw3215_info *raw;
+	unsigned long flags;
+
+	/* Empty the output buffer, then prevent new I/O. */
+	raw = cdev->dev.driver_data;
+	spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
+	raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
+	raw->flags |= RAW3215_FROZEN;
+	spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
+	return 0;
+}
+
+static int raw3215_pm_start(struct ccw_device *cdev)
+{
+	struct raw3215_info *raw;
+	unsigned long flags;
+
+	/* Allow I/O again and flush output buffer. */
+	raw = cdev->dev.driver_data;
+	spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
+	raw->flags &= ~RAW3215_FROZEN;
+	raw->flags |= RAW3215_FLUSHING;
+	raw3215_try_io(raw);
+	raw->flags &= ~RAW3215_FLUSHING;
+	spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
+	return 0;
+}
+
 static struct ccw_device_id raw3215_id[] = {
 	{ CCW_DEVICE(0x3215, 0) },
 	{ /* end of list */ },
@@ -728,14 +772,17 @@
 	.remove		= &raw3215_remove,
 	.set_online	= &raw3215_set_online,
 	.set_offline	= &raw3215_set_offline,
+	.freeze		= &raw3215_pm_stop,
+	.thaw		= &raw3215_pm_start,
+	.restore	= &raw3215_pm_start,
 };
 
 #ifdef CONFIG_TN3215_CONSOLE
 /*
  * Write a string to the 3215 console
  */
-static void
-con3215_write(struct console *co, const char *str, unsigned int count)
+static void con3215_write(struct console *co, const char *str,
+			  unsigned int count)
 {
 	struct raw3215_info *raw;
 	int i;
@@ -768,13 +815,17 @@
  * panic() calls con3215_flush through a panic_notifier
  * before the system enters a disabled, endless loop.
  */
-static void
-con3215_flush(void)
+static void con3215_flush(void)
 {
 	struct raw3215_info *raw;
 	unsigned long flags;
 
 	raw = raw3215[0];  /* console 3215 is the first one */
+	if (raw->flags & RAW3215_FROZEN)
+		/* The console is still frozen for suspend. */
+		if (ccw_device_force_console())
+			/* Forcing didn't work, no panic message .. */
+			return;
 	spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
 	raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
 	spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
@@ -811,8 +862,7 @@
  * 3215 console initialization code called from console_init().
  * NOTE: This is called before kmalloc is available.
  */
-static int __init
-con3215_init(void)
+static int __init con3215_init(void)
 {
 	struct ccw_device *cdev;
 	struct raw3215_info *raw;
@@ -875,8 +925,7 @@
  *
  * This routine is called whenever a 3215 tty is opened.
  */
-static int
-tty3215_open(struct tty_struct *tty, struct file * filp)
+static int tty3215_open(struct tty_struct *tty, struct file * filp)
 {
 	struct raw3215_info *raw;
 	int retval, line;
@@ -909,8 +958,7 @@
  * This routine is called when the 3215 tty is closed. We wait
  * for the remaining request to be completed. Then we clean up.
  */
-static void
-tty3215_close(struct tty_struct *tty, struct file * filp)
+static void tty3215_close(struct tty_struct *tty, struct file * filp)
 {
 	struct raw3215_info *raw;
 
@@ -927,8 +975,7 @@
 /*
  * Returns the amount of free space in the output buffer.
  */
-static int
-tty3215_write_room(struct tty_struct *tty)
+static int tty3215_write_room(struct tty_struct *tty)
 {
 	struct raw3215_info *raw;
 
@@ -944,9 +991,8 @@
 /*
  * String write routine for 3215 ttys
  */
-static int
-tty3215_write(struct tty_struct * tty,
-	      const unsigned char *buf, int count)
+static int tty3215_write(struct tty_struct * tty,
+			 const unsigned char *buf, int count)
 {
 	struct raw3215_info *raw;
 
@@ -960,8 +1006,7 @@
 /*
  * Put character routine for 3215 ttys
  */
-static int
-tty3215_put_char(struct tty_struct *tty, unsigned char ch)
+static int tty3215_put_char(struct tty_struct *tty, unsigned char ch)
 {
 	struct raw3215_info *raw;
 
@@ -972,16 +1017,14 @@
 	return 1;
 }
 
-static void
-tty3215_flush_chars(struct tty_struct *tty)
+static void tty3215_flush_chars(struct tty_struct *tty)
 {
 }
 
 /*
  * Returns the number of characters in the output buffer
  */
-static int
-tty3215_chars_in_buffer(struct tty_struct *tty)
+static int tty3215_chars_in_buffer(struct tty_struct *tty)
 {
 	struct raw3215_info *raw;
 
@@ -989,8 +1032,7 @@
 	return raw->count;
 }
 
-static void
-tty3215_flush_buffer(struct tty_struct *tty)
+static void tty3215_flush_buffer(struct tty_struct *tty)
 {
 	struct raw3215_info *raw;
 
@@ -1002,9 +1044,8 @@
 /*
  * Currently we don't have any io controls for 3215 ttys
  */
-static int
-tty3215_ioctl(struct tty_struct *tty, struct file * file,
-	      unsigned int cmd, unsigned long arg)
+static int tty3215_ioctl(struct tty_struct *tty, struct file * file,
+			 unsigned int cmd, unsigned long arg)
 {
 	if (tty->flags & (1 << TTY_IO_ERROR))
 		return -EIO;
@@ -1019,8 +1060,7 @@
 /*
  * Disable reading from a 3215 tty
  */
-static void
-tty3215_throttle(struct tty_struct * tty)
+static void tty3215_throttle(struct tty_struct * tty)
 {
 	struct raw3215_info *raw;
 
@@ -1031,8 +1071,7 @@
 /*
  * Enable reading from a 3215 tty
  */
-static void
-tty3215_unthrottle(struct tty_struct * tty)
+static void tty3215_unthrottle(struct tty_struct * tty)
 {
 	struct raw3215_info *raw;
 	unsigned long flags;
@@ -1049,8 +1088,7 @@
 /*
  * Disable writing to a 3215 tty
  */
-static void
-tty3215_stop(struct tty_struct *tty)
+static void tty3215_stop(struct tty_struct *tty)
 {
 	struct raw3215_info *raw;
 
@@ -1061,8 +1099,7 @@
 /*
  * Enable writing to a 3215 tty
  */
-static void
-tty3215_start(struct tty_struct *tty)
+static void tty3215_start(struct tty_struct *tty)
 {
 	struct raw3215_info *raw;
 	unsigned long flags;
@@ -1096,8 +1133,7 @@
  * 3215 tty registration code called from tty_init().
  * Most kernel services (incl. kmalloc) are available at this poimt.
  */
-static int __init
-tty3215_init(void)
+static int __init tty3215_init(void)
 {
 	struct tty_driver *driver;
 	int ret;
@@ -1142,8 +1178,7 @@
 	return 0;
 }
 
-static void __exit
-tty3215_exit(void)
+static void __exit tty3215_exit(void)
 {
 	tty_unregister_driver(tty3215_driver);
 	put_tty_driver(tty3215_driver);
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index ed5396d..44d02e3 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/con3270.c
- *    IBM/3270 Driver - console view.
+ * IBM/3270 Driver - console view.
  *
- *  Author(s):
- *    Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
- *    Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
- *	-- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s):
+ *   Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
+ *   Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *     Copyright IBM Corp. 2003, 2009
  */
 
 #include <linux/bootmem.h>
@@ -530,6 +529,7 @@
 	cp = condev;
 	if (!cp->view.dev)
 		return;
+	raw3270_pm_unfreeze(&cp->view);
 	spin_lock_irqsave(&cp->view.lock, flags);
 	con3270_wait_write(cp);
 	cp->nr_up = 0;
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 40759c3..097d384 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/fs3270.c
- *    IBM/3270 Driver - fullscreen driver.
+ * IBM/3270 Driver - fullscreen driver.
  *
- *  Author(s):
- *    Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
- *    Rewritten for 2.5/2.6 by Martin Schwidefsky <schwidefsky@de.ibm.com>
- *	-- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s):
+ *   Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
+ *   Rewritten for 2.5/2.6 by Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *     Copyright IBM Corp. 2003, 2009
  */
 
 #include <linux/bootmem.h>
@@ -399,6 +398,11 @@
 static void
 fs3270_release(struct raw3270_view *view)
 {
+	struct fs3270 *fp;
+
+	fp = (struct fs3270 *) view;
+	if (fp->fs_pid)
+		kill_pid(fp->fs_pid, SIGHUP, 1);
 }
 
 /* View to a 3270 device. Can be console, tty or fullscreen. */
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 97e63cf..75a8831 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -1,10 +1,9 @@
 /*
- * drivers/s390/char/monreader.c
- *
  * Character device driver for reading z/VM *MONITOR service records.
  *
- *   Copyright IBM Corp. 2004, 2008
- *   Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
+ * Copyright IBM Corp. 2004, 2009
+ *
+ * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
 
 #define KMSG_COMPONENT "monreader"
@@ -22,6 +21,7 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/poll.h>
+#include <linux/device.h>
 #include <net/iucv/iucv.h>
 #include <asm/uaccess.h>
 #include <asm/ebcdic.h>
@@ -78,6 +78,7 @@
 	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 };
 
+static struct device *monreader_device;
 
 /******************************************************************************
  *                             helper functions                               *
@@ -319,11 +320,12 @@
 		goto out_path;
 	}
 	filp->private_data = monpriv;
+	monreader_device->driver_data = monpriv;
 	unlock_kernel();
 	return nonseekable_open(inode, filp);
 
 out_path:
-	kfree(monpriv->path);
+	iucv_path_free(monpriv->path);
 out_priv:
 	mon_free_mem(monpriv);
 out_use:
@@ -341,10 +343,13 @@
 	/*
 	 * Close IUCV connection and unregister
 	 */
-	rc = iucv_path_sever(monpriv->path, user_data_sever);
-	if (rc)
-		pr_warning("Disconnecting the z/VM *MONITOR system service "
-			   "failed with rc=%i\n", rc);
+	if (monpriv->path) {
+		rc = iucv_path_sever(monpriv->path, user_data_sever);
+		if (rc)
+			pr_warning("Disconnecting the z/VM *MONITOR system "
+				   "service failed with rc=%i\n", rc);
+		iucv_path_free(monpriv->path);
+	}
 
 	atomic_set(&monpriv->iucv_severed, 0);
 	atomic_set(&monpriv->iucv_connected, 0);
@@ -452,6 +457,94 @@
 	.minor      = MISC_DYNAMIC_MINOR,
 };
 
+
+/******************************************************************************
+ *				suspend / resume			      *
+ *****************************************************************************/
+static int monreader_freeze(struct device *dev)
+{
+	struct mon_private *monpriv = dev->driver_data;
+	int rc;
+
+	if (!monpriv)
+		return 0;
+	if (monpriv->path) {
+		rc = iucv_path_sever(monpriv->path, user_data_sever);
+		if (rc)
+			pr_warning("Disconnecting the z/VM *MONITOR system "
+				   "service failed with rc=%i\n", rc);
+		iucv_path_free(monpriv->path);
+	}
+	atomic_set(&monpriv->iucv_severed, 0);
+	atomic_set(&monpriv->iucv_connected, 0);
+	atomic_set(&monpriv->read_ready, 0);
+	atomic_set(&monpriv->msglim_count, 0);
+	monpriv->write_index  = 0;
+	monpriv->read_index   = 0;
+	monpriv->path = NULL;
+	return 0;
+}
+
+static int monreader_thaw(struct device *dev)
+{
+	struct mon_private *monpriv = dev->driver_data;
+	int rc;
+
+	if (!monpriv)
+		return 0;
+	rc = -ENOMEM;
+	monpriv->path = iucv_path_alloc(MON_MSGLIM, IUCV_IPRMDATA, GFP_KERNEL);
+	if (!monpriv->path)
+		goto out;
+	rc = iucv_path_connect(monpriv->path, &monreader_iucv_handler,
+			       MON_SERVICE, NULL, user_data_connect, monpriv);
+	if (rc) {
+		pr_err("Connecting to the z/VM *MONITOR system service "
+		       "failed with rc=%i\n", rc);
+		goto out_path;
+	}
+	wait_event(mon_conn_wait_queue,
+		   atomic_read(&monpriv->iucv_connected) ||
+		   atomic_read(&monpriv->iucv_severed));
+	if (atomic_read(&monpriv->iucv_severed))
+		goto out_path;
+	return 0;
+out_path:
+	rc = -EIO;
+	iucv_path_free(monpriv->path);
+	monpriv->path = NULL;
+out:
+	atomic_set(&monpriv->iucv_severed, 1);
+	return rc;
+}
+
+static int monreader_restore(struct device *dev)
+{
+	int rc;
+
+	segment_unload(mon_dcss_name);
+	rc = segment_load(mon_dcss_name, SEGMENT_SHARED,
+			  &mon_dcss_start, &mon_dcss_end);
+	if (rc < 0) {
+		segment_warning(rc, mon_dcss_name);
+		panic("fatal monreader resume error: no monitor dcss\n");
+	}
+	return monreader_thaw(dev);
+}
+
+static struct dev_pm_ops monreader_pm_ops = {
+	.freeze  = monreader_freeze,
+	.thaw	 = monreader_thaw,
+	.restore = monreader_restore,
+};
+
+static struct device_driver monreader_driver = {
+	.name = "monreader",
+	.bus  = &iucv_bus,
+	.pm   = &monreader_pm_ops,
+};
+
+
 /******************************************************************************
  *                              module init/exit                              *
  *****************************************************************************/
@@ -475,16 +568,33 @@
 		return rc;
 	}
 
+	rc = driver_register(&monreader_driver);
+	if (rc)
+		goto out_iucv;
+	monreader_device = kzalloc(sizeof(struct device), GFP_KERNEL);
+	if (!monreader_device)
+		goto out_driver;
+	dev_set_name(monreader_device, "monreader-dev");
+	monreader_device->bus = &iucv_bus;
+	monreader_device->parent = iucv_root;
+	monreader_device->driver = &monreader_driver;
+	monreader_device->release = (void (*)(struct device *))kfree;
+	rc = device_register(monreader_device);
+	if (rc) {
+		kfree(monreader_device);
+		goto out_driver;
+	}
+
 	rc = segment_type(mon_dcss_name);
 	if (rc < 0) {
 		segment_warning(rc, mon_dcss_name);
-		goto out_iucv;
+		goto out_device;
 	}
 	if (rc != SEG_TYPE_SC) {
 		pr_err("The specified *MONITOR DCSS %s does not have the "
 		       "required type SC\n", mon_dcss_name);
 		rc = -EINVAL;
-		goto out_iucv;
+		goto out_device;
 	}
 
 	rc = segment_load(mon_dcss_name, SEGMENT_SHARED,
@@ -492,7 +602,7 @@
 	if (rc < 0) {
 		segment_warning(rc, mon_dcss_name);
 		rc = -EINVAL;
-		goto out_iucv;
+		goto out_device;
 	}
 	dcss_mkname(mon_dcss_name, &user_data_connect[8]);
 
@@ -503,6 +613,10 @@
 
 out:
 	segment_unload(mon_dcss_name);
+out_device:
+	device_unregister(monreader_device);
+out_driver:
+	driver_unregister(&monreader_driver);
 out_iucv:
 	iucv_unregister(&monreader_iucv_handler, 1);
 	return rc;
@@ -512,6 +626,8 @@
 {
 	segment_unload(mon_dcss_name);
 	WARN_ON(misc_deregister(&mon_dev) != 0);
+	device_unregister(monreader_device);
+	driver_unregister(&monreader_driver);
 	iucv_unregister(&monreader_iucv_handler, 1);
 	return;
 }
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index c7d7483..66fb8eb 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -1,9 +1,7 @@
 /*
- * drivers/s390/char/monwriter.c
- *
  * Character device driver for writing z/VM *MONITOR service records.
  *
- * Copyright (C) IBM Corp. 2006
+ * Copyright IBM Corp. 2006, 2009
  *
  * Author(s): Melissa Howland <Melissa.Howland@us.ibm.com>
  */
@@ -22,6 +20,7 @@
 #include <linux/ctype.h>
 #include <linux/poll.h>
 #include <linux/mutex.h>
+#include <linux/platform_device.h>
 #include <asm/uaccess.h>
 #include <asm/ebcdic.h>
 #include <asm/io.h>
@@ -40,7 +39,10 @@
 	char *data;
 };
 
+static LIST_HEAD(mon_priv_list);
+
 struct mon_private {
+	struct list_head priv_list;
 	struct list_head list;
 	struct monwrite_hdr hdr;
 	size_t hdr_to_read;
@@ -188,6 +190,7 @@
 	monpriv->hdr_to_read = sizeof(monpriv->hdr);
 	mutex_init(&monpriv->thread_mutex);
 	filp->private_data = monpriv;
+	list_add_tail(&monpriv->priv_list, &mon_priv_list);
 	unlock_kernel();
 	return nonseekable_open(inode, filp);
 }
@@ -206,6 +209,7 @@
 		kfree(entry->data);
 		kfree(entry);
 	}
+	list_del(&monpriv->priv_list);
 	kfree(monpriv);
 	return 0;
 }
@@ -281,20 +285,102 @@
 };
 
 /*
+ * suspend/resume
+ */
+
+static int monwriter_freeze(struct device *dev)
+{
+	struct mon_private *monpriv;
+	struct mon_buf *monbuf;
+
+	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {
+		list_for_each_entry(monbuf, &monpriv->list, list) {
+			if (monbuf->hdr.mon_function != MONWRITE_GEN_EVENT)
+				monwrite_diag(&monbuf->hdr, monbuf->data,
+					      APPLDATA_STOP_REC);
+		}
+	}
+	return 0;
+}
+
+static int monwriter_restore(struct device *dev)
+{
+	struct mon_private *monpriv;
+	struct mon_buf *monbuf;
+
+	list_for_each_entry(monpriv, &mon_priv_list, priv_list) {
+		list_for_each_entry(monbuf, &monpriv->list, list) {
+			if (monbuf->hdr.mon_function == MONWRITE_START_INTERVAL)
+				monwrite_diag(&monbuf->hdr, monbuf->data,
+					      APPLDATA_START_INTERVAL_REC);
+			if (monbuf->hdr.mon_function == MONWRITE_START_CONFIG)
+				monwrite_diag(&monbuf->hdr, monbuf->data,
+					      APPLDATA_START_CONFIG_REC);
+		}
+	}
+	return 0;
+}
+
+static int monwriter_thaw(struct device *dev)
+{
+	return monwriter_restore(dev);
+}
+
+static struct dev_pm_ops monwriter_pm_ops = {
+	.freeze		= monwriter_freeze,
+	.thaw		= monwriter_thaw,
+	.restore	= monwriter_restore,
+};
+
+static struct platform_driver monwriter_pdrv = {
+	.driver = {
+		.name	= "monwriter",
+		.owner	= THIS_MODULE,
+		.pm	= &monwriter_pm_ops,
+	},
+};
+
+static struct platform_device *monwriter_pdev;
+
+/*
  * module init/exit
  */
 
 static int __init mon_init(void)
 {
-	if (MACHINE_IS_VM)
-		return misc_register(&mon_dev);
-	else
+	int rc;
+
+	if (!MACHINE_IS_VM)
 		return -ENODEV;
+
+	rc = platform_driver_register(&monwriter_pdrv);
+	if (rc)
+		return rc;
+
+	monwriter_pdev = platform_device_register_simple("monwriter", -1, NULL,
+							0);
+	if (IS_ERR(monwriter_pdev)) {
+		rc = PTR_ERR(monwriter_pdev);
+		goto out_driver;
+	}
+
+	rc = misc_register(&mon_dev);
+	if (rc)
+		goto out_device;
+	return 0;
+
+out_device:
+	platform_device_unregister(monwriter_pdev);
+out_driver:
+	platform_driver_unregister(&monwriter_pdrv);
+	return rc;
 }
 
 static void __exit mon_exit(void)
 {
 	WARN_ON(misc_deregister(&mon_dev) != 0);
+	platform_device_unregister(monwriter_pdev);
+	platform_driver_unregister(&monwriter_pdrv);
 }
 
 module_init(mon_init);
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 1ab69df..acab7b2 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/raw3270.c
- *    IBM/3270 Driver - core functions.
+ * IBM/3270 Driver - core functions.
  *
- *  Author(s):
- *    Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
- *    Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
- *	-- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s):
+ *   Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
+ *   Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *     Copyright IBM Corp. 2003, 2009
  */
 
 #include <linux/bootmem.h>
@@ -61,6 +60,7 @@
 #define RAW3270_FLAGS_ATTN	2	/* Device sent an ATTN interrupt */
 #define RAW3270_FLAGS_READY	4	/* Device is useable by views */
 #define RAW3270_FLAGS_CONSOLE	8	/* Device is the console. */
+#define RAW3270_FLAGS_FROZEN	16	/* set if 3270 is frozen for suspend */
 
 /* Semaphore to protect global data of raw3270 (devices, views, etc). */
 static DEFINE_MUTEX(raw3270_mutex);
@@ -306,7 +306,8 @@
 
 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
 	rp = view->dev;
-	if (!rp || rp->view != view)
+	if (!rp || rp->view != view ||
+	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
 	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
 		rc = -ENODEV;
@@ -323,7 +324,8 @@
 	int rc;
 
 	rp = view->dev;
-	if (!rp || rp->view != view)
+	if (!rp || rp->view != view ||
+	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
 	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
 		rc = -ENODEV;
@@ -764,7 +766,8 @@
 	int rc;
 
 	rp = view->dev;
-	if (!rp || rp->view != view)
+	if (!rp || rp->view != view ||
+	    test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
 		rc = -EACCES;
 	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
 		rc = -ENODEV;
@@ -922,6 +925,8 @@
 		rc = 0;
 	else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
 		rc = -ENODEV;
+	else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+		rc = -EACCES;
 	else {
 		oldview = NULL;
 		if (rp->view) {
@@ -969,7 +974,8 @@
 		list_del_init(&view->list);
 		list_add_tail(&view->list, &rp->view_list);
 		/* Try to activate another view. */
-		if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
+		if (test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+		    !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
 			list_for_each_entry(view, &rp->view_list, list) {
 				rp->view = view;
 				if (view->fn->activate(view) == 0)
@@ -1068,7 +1074,8 @@
 		rp->view = NULL;
 	}
 	list_del_init(&view->list);
-	if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
+	if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+	    !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
 		/* Try to activate another view. */
 		list_for_each_entry(nv, &rp->view_list, list) {
 			if (nv->fn->activate(nv) == 0) {
@@ -1337,6 +1344,58 @@
 	return 0;
 }
 
+static int raw3270_pm_stop(struct ccw_device *cdev)
+{
+	struct raw3270 *rp;
+	struct raw3270_view *view;
+	unsigned long flags;
+
+	rp = cdev->dev.driver_data;
+	if (!rp)
+		return 0;
+	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+	if (rp->view)
+		rp->view->fn->deactivate(rp->view);
+	if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
+		/*
+		 * Release tty and fullscreen for all non-console
+		 * devices.
+		 */
+		list_for_each_entry(view, &rp->view_list, list) {
+			if (view->fn->release)
+				view->fn->release(view);
+		}
+	}
+	set_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
+	return 0;
+}
+
+static int raw3270_pm_start(struct ccw_device *cdev)
+{
+	struct raw3270 *rp;
+	unsigned long flags;
+
+	rp = cdev->dev.driver_data;
+	if (!rp)
+		return 0;
+	spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+	clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+	if (rp->view)
+		rp->view->fn->activate(rp->view);
+	spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
+	return 0;
+}
+
+void raw3270_pm_unfreeze(struct raw3270_view *view)
+{
+	struct raw3270 *rp;
+
+	rp = view->dev;
+	if (rp && test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
+		ccw_device_force_console();
+}
+
 static struct ccw_device_id raw3270_id[] = {
 	{ CCW_DEVICE(0x3270, 0) },
 	{ CCW_DEVICE(0x3271, 0) },
@@ -1360,6 +1419,9 @@
 	.remove		= &raw3270_remove,
 	.set_online	= &raw3270_set_online,
 	.set_offline	= &raw3270_set_offline,
+	.freeze		= &raw3270_pm_stop,
+	.thaw		= &raw3270_pm_start,
+	.restore	= &raw3270_pm_start,
 };
 
 static int
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 90beaa8..ed34eb2 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/raw3270.h
- *    IBM/3270 Driver
+ * IBM/3270 Driver
  *
- *  Author(s):
- *    Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
- *    Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
- *	-- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Author(s):
+ *   Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
+ *   Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *     Copyright IBM Corp. 2003, 2009
  */
 
 #include <asm/idals.h>
@@ -195,6 +194,7 @@
 /* Notifier for device addition/removal */
 int raw3270_register_notifier(void (*notifier)(int, int));
 void raw3270_unregister_notifier(void (*notifier)(int, int));
+void raw3270_pm_unfreeze(struct raw3270_view *);
 
 /*
  * Little memory allocator for string objects. 
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 4377e93..a983f50 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/sclp.c
- *     core function to access sclp interface
+ * core function to access sclp interface
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #include <linux/module.h>
@@ -16,6 +15,9 @@
 #include <linux/reboot.h>
 #include <linux/jiffies.h>
 #include <linux/init.h>
+#include <linux/suspend.h>
+#include <linux/completion.h>
+#include <linux/platform_device.h>
 #include <asm/types.h>
 #include <asm/s390_ext.h>
 
@@ -47,6 +49,16 @@
 static char sclp_read_sccb[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
 static char sclp_init_sccb[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
 
+/* Suspend request */
+static DECLARE_COMPLETION(sclp_request_queue_flushed);
+
+static void sclp_suspend_req_cb(struct sclp_req *req, void *data)
+{
+	complete(&sclp_request_queue_flushed);
+}
+
+static struct sclp_req sclp_suspend_req;
+
 /* Timer for request retries. */
 static struct timer_list sclp_request_timer;
 
@@ -84,6 +96,12 @@
 	sclp_mask_state_initializing
 } sclp_mask_state = sclp_mask_state_idle;
 
+/* Internal state: is the driver suspended? */
+static enum sclp_suspend_state_t {
+	sclp_suspend_state_running,
+	sclp_suspend_state_suspended,
+} sclp_suspend_state = sclp_suspend_state_running;
+
 /* Maximum retry counts */
 #define SCLP_INIT_RETRY		3
 #define SCLP_MASK_RETRY		3
@@ -211,6 +229,8 @@
 	del_timer(&sclp_request_timer);
 	while (!list_empty(&sclp_req_queue)) {
 		req = list_entry(sclp_req_queue.next, struct sclp_req, list);
+		if (!req->sccb)
+			goto do_post;
 		rc = __sclp_start_request(req);
 		if (rc == 0)
 			break;
@@ -222,6 +242,7 @@
 						 sclp_request_timeout, 0);
 			break;
 		}
+do_post:
 		/* Post-processing for aborted request */
 		list_del(&req->list);
 		if (req->callback) {
@@ -233,6 +254,19 @@
 	spin_unlock_irqrestore(&sclp_lock, flags);
 }
 
+static int __sclp_can_add_request(struct sclp_req *req)
+{
+	if (req == &sclp_suspend_req || req == &sclp_init_req)
+		return 1;
+	if (sclp_suspend_state != sclp_suspend_state_running)
+		return 0;
+	if (sclp_init_state != sclp_init_state_initialized)
+		return 0;
+	if (sclp_activation_state != sclp_activation_state_active)
+		return 0;
+	return 1;
+}
+
 /* Queue a new request. Return zero on success, non-zero otherwise. */
 int
 sclp_add_request(struct sclp_req *req)
@@ -241,9 +275,7 @@
 	int rc;
 
 	spin_lock_irqsave(&sclp_lock, flags);
-	if ((sclp_init_state != sclp_init_state_initialized ||
-	     sclp_activation_state != sclp_activation_state_active) &&
-	    req != &sclp_init_req) {
+	if (!__sclp_can_add_request(req)) {
 		spin_unlock_irqrestore(&sclp_lock, flags);
 		return -EIO;
 	}
@@ -254,10 +286,16 @@
 	/* Start if request is first in list */
 	if (sclp_running_state == sclp_running_state_idle &&
 	    req->list.prev == &sclp_req_queue) {
+		if (!req->sccb) {
+			list_del(&req->list);
+			rc = -ENODATA;
+			goto out;
+		}
 		rc = __sclp_start_request(req);
 		if (rc)
 			list_del(&req->list);
 	}
+out:
 	spin_unlock_irqrestore(&sclp_lock, flags);
 	return rc;
 }
@@ -560,6 +598,7 @@
 	/* Trigger initial state change callback */
 	reg->sclp_receive_mask = 0;
 	reg->sclp_send_mask = 0;
+	reg->pm_event_posted = 0;
 	list_add(&reg->list, &sclp_reg_list);
 	spin_unlock_irqrestore(&sclp_lock, flags);
 	rc = sclp_init_mask(1);
@@ -880,20 +919,134 @@
 	.notifier_call = sclp_reboot_event
 };
 
+/*
+ * Suspend/resume SCLP notifier implementation
+ */
+
+static void sclp_pm_event(enum sclp_pm_event sclp_pm_event, int rollback)
+{
+	struct sclp_register *reg;
+	unsigned long flags;
+
+	if (!rollback) {
+		spin_lock_irqsave(&sclp_lock, flags);
+		list_for_each_entry(reg, &sclp_reg_list, list)
+			reg->pm_event_posted = 0;
+		spin_unlock_irqrestore(&sclp_lock, flags);
+	}
+	do {
+		spin_lock_irqsave(&sclp_lock, flags);
+		list_for_each_entry(reg, &sclp_reg_list, list) {
+			if (rollback && reg->pm_event_posted)
+				goto found;
+			if (!rollback && !reg->pm_event_posted)
+				goto found;
+		}
+		spin_unlock_irqrestore(&sclp_lock, flags);
+		return;
+found:
+		spin_unlock_irqrestore(&sclp_lock, flags);
+		if (reg->pm_event_fn)
+			reg->pm_event_fn(reg, sclp_pm_event);
+		reg->pm_event_posted = rollback ? 0 : 1;
+	} while (1);
+}
+
+/*
+ * Susend/resume callbacks for platform device
+ */
+
+static int sclp_freeze(struct device *dev)
+{
+	unsigned long flags;
+	int rc;
+
+	sclp_pm_event(SCLP_PM_EVENT_FREEZE, 0);
+
+	spin_lock_irqsave(&sclp_lock, flags);
+	sclp_suspend_state = sclp_suspend_state_suspended;
+	spin_unlock_irqrestore(&sclp_lock, flags);
+
+	/* Init supend data */
+	memset(&sclp_suspend_req, 0, sizeof(sclp_suspend_req));
+	sclp_suspend_req.callback = sclp_suspend_req_cb;
+	sclp_suspend_req.status = SCLP_REQ_FILLED;
+	init_completion(&sclp_request_queue_flushed);
+
+	rc = sclp_add_request(&sclp_suspend_req);
+	if (rc == 0)
+		wait_for_completion(&sclp_request_queue_flushed);
+	else if (rc != -ENODATA)
+		goto fail_thaw;
+
+	rc = sclp_deactivate();
+	if (rc)
+		goto fail_thaw;
+	return 0;
+
+fail_thaw:
+	spin_lock_irqsave(&sclp_lock, flags);
+	sclp_suspend_state = sclp_suspend_state_running;
+	spin_unlock_irqrestore(&sclp_lock, flags);
+	sclp_pm_event(SCLP_PM_EVENT_THAW, 1);
+	return rc;
+}
+
+static int sclp_undo_suspend(enum sclp_pm_event event)
+{
+	unsigned long flags;
+	int rc;
+
+	rc = sclp_reactivate();
+	if (rc)
+		return rc;
+
+	spin_lock_irqsave(&sclp_lock, flags);
+	sclp_suspend_state = sclp_suspend_state_running;
+	spin_unlock_irqrestore(&sclp_lock, flags);
+
+	sclp_pm_event(event, 0);
+	return 0;
+}
+
+static int sclp_thaw(struct device *dev)
+{
+	return sclp_undo_suspend(SCLP_PM_EVENT_THAW);
+}
+
+static int sclp_restore(struct device *dev)
+{
+	return sclp_undo_suspend(SCLP_PM_EVENT_RESTORE);
+}
+
+static struct dev_pm_ops sclp_pm_ops = {
+	.freeze		= sclp_freeze,
+	.thaw		= sclp_thaw,
+	.restore	= sclp_restore,
+};
+
+static struct platform_driver sclp_pdrv = {
+	.driver = {
+		.name	= "sclp",
+		.owner	= THIS_MODULE,
+		.pm	= &sclp_pm_ops,
+	},
+};
+
+static struct platform_device *sclp_pdev;
+
 /* Initialize SCLP driver. Return zero if driver is operational, non-zero
  * otherwise. */
 static int
 sclp_init(void)
 {
 	unsigned long flags;
-	int rc;
+	int rc = 0;
 
 	spin_lock_irqsave(&sclp_lock, flags);
 	/* Check for previous or running initialization */
-	if (sclp_init_state != sclp_init_state_uninitialized) {
-		spin_unlock_irqrestore(&sclp_lock, flags);
-		return 0;
-	}
+	if (sclp_init_state != sclp_init_state_uninitialized)
+		goto fail_unlock;
 	sclp_init_state = sclp_init_state_initializing;
 	/* Set up variables */
 	INIT_LIST_HEAD(&sclp_req_queue);
@@ -904,27 +1057,17 @@
 	spin_unlock_irqrestore(&sclp_lock, flags);
 	rc = sclp_check_interface();
 	spin_lock_irqsave(&sclp_lock, flags);
-	if (rc) {
-		sclp_init_state = sclp_init_state_uninitialized;
-		spin_unlock_irqrestore(&sclp_lock, flags);
-		return rc;
-	}
+	if (rc)
+		goto fail_init_state_uninitialized;
 	/* Register reboot handler */
 	rc = register_reboot_notifier(&sclp_reboot_notifier);
-	if (rc) {
-		sclp_init_state = sclp_init_state_uninitialized;
-		spin_unlock_irqrestore(&sclp_lock, flags);
-		return rc;
-	}
+	if (rc)
+		goto fail_init_state_uninitialized;
 	/* Register interrupt handler */
 	rc = register_early_external_interrupt(0x2401, sclp_interrupt_handler,
 					       &ext_int_info_hwc);
-	if (rc) {
-		unregister_reboot_notifier(&sclp_reboot_notifier);
-		sclp_init_state = sclp_init_state_uninitialized;
-		spin_unlock_irqrestore(&sclp_lock, flags);
-		return rc;
-	}
+	if (rc)
+		goto fail_unregister_reboot_notifier;
 	sclp_init_state = sclp_init_state_initialized;
 	spin_unlock_irqrestore(&sclp_lock, flags);
 	/* Enable service-signal external interruption - needs to happen with
@@ -932,11 +1075,56 @@
 	ctl_set_bit(0, 9);
 	sclp_init_mask(1);
 	return 0;
+
+fail_unregister_reboot_notifier:
+	unregister_reboot_notifier(&sclp_reboot_notifier);
+fail_init_state_uninitialized:
+	sclp_init_state = sclp_init_state_uninitialized;
+fail_unlock:
+	spin_unlock_irqrestore(&sclp_lock, flags);
+	return rc;
 }
 
+/*
+ * SCLP panic notifier: If we are suspended, we thaw SCLP in order to be able
+ * to print the panic message.
+ */
+static int sclp_panic_notify(struct notifier_block *self,
+			     unsigned long event, void *data)
+{
+	if (sclp_suspend_state == sclp_suspend_state_suspended)
+		sclp_undo_suspend(SCLP_PM_EVENT_THAW);
+	return NOTIFY_OK;
+}
+
+static struct notifier_block sclp_on_panic_nb = {
+	.notifier_call = sclp_panic_notify,
+	.priority = SCLP_PANIC_PRIO,
+};
+
 static __init int sclp_initcall(void)
 {
+	int rc;
+
+	rc = platform_driver_register(&sclp_pdrv);
+	if (rc)
+		return rc;
+	sclp_pdev = platform_device_register_simple("sclp", -1, NULL, 0);
+	rc = IS_ERR(sclp_pdev) ? PTR_ERR(sclp_pdev) : 0;
+	if (rc)
+		goto fail_platform_driver_unregister;
+	rc = atomic_notifier_chain_register(&panic_notifier_list,
+					    &sclp_on_panic_nb);
+	if (rc)
+		goto fail_platform_device_unregister;
+
 	return sclp_init();
+
+fail_platform_device_unregister:
+	platform_device_unregister(sclp_pdev);
+fail_platform_driver_unregister:
+	platform_driver_unregister(&sclp_pdrv);
+	return rc;
 }
 
 arch_initcall(sclp_initcall);
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index bac80e8..60e7cb0 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -1,10 +1,8 @@
 /*
- *  drivers/s390/char/sclp.h
+ * Copyright IBM Corp. 1999, 2009
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #ifndef __SCLP_H__
@@ -17,7 +15,7 @@
 
 /* maximum number of pages concerning our own memory management */
 #define MAX_KMEM_PAGES (sizeof(unsigned long) << 3)
-#define MAX_CONSOLE_PAGES	4
+#define MAX_CONSOLE_PAGES	6
 
 #define EVTYP_OPCMD		0x01
 #define EVTYP_MSG		0x02
@@ -68,6 +66,15 @@
 
 #define GDS_KEY_SELFDEFTEXTMSG	0x31
 
+enum sclp_pm_event {
+	SCLP_PM_EVENT_FREEZE,
+	SCLP_PM_EVENT_THAW,
+	SCLP_PM_EVENT_RESTORE,
+};
+
+#define SCLP_PANIC_PRIO		1
+#define SCLP_PANIC_PRIO_CLIENT	0
+
 typedef u32 sccb_mask_t;	/* ATTENTION: assumes 32bit mask !!! */
 
 struct sccb_header {
@@ -134,6 +141,10 @@
 	void (*state_change_fn)(struct sclp_register *);
 	/* called for events in cp_receive_mask/sclp_receive_mask */
 	void (*receiver_fn)(struct evbuf_header *);
+	/* called for power management events */
+	void (*pm_event_fn)(struct sclp_register *, enum sclp_pm_event);
+	/* pm event posted flag */
+	int pm_event_posted;
 };
 
 /* externals from sclp.c */
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 77ab6e3..5cc11c6 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -1,9 +1,8 @@
 /*
- *  drivers/s390/char/sclp_cmd.c
+ * Copyright IBM Corp. 2007, 2009
  *
- *    Copyright IBM Corp. 2007
- *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
- *		 Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
+ *	      Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
  */
 
 #define KMSG_COMPONENT "sclp_cmd"
@@ -12,11 +11,13 @@
 #include <linux/completion.h>
 #include <linux/init.h>
 #include <linux/errno.h>
+#include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/memory.h>
+#include <linux/platform_device.h>
 #include <asm/chpid.h>
 #include <asm/sclp.h>
 #include <asm/setup.h>
@@ -292,6 +293,7 @@
 static LIST_HEAD(sclp_mem_list);
 static u8 sclp_max_storage_id;
 static unsigned long sclp_storage_ids[256 / BITS_PER_LONG];
+static int sclp_mem_state_changed;
 
 struct memory_increment {
 	struct list_head list;
@@ -450,6 +452,8 @@
 		rc = -EINVAL;
 		break;
 	}
+	if (!rc)
+		sclp_mem_state_changed = 1;
 	mutex_unlock(&sclp_mem_mutex);
 	return rc ? NOTIFY_BAD : NOTIFY_OK;
 }
@@ -525,6 +529,14 @@
 	list_add(&new_incr->list, prev);
 }
 
+static int sclp_mem_freeze(struct device *dev)
+{
+	if (!sclp_mem_state_changed)
+		return 0;
+	pr_err("Memory hotplug state changed, suspend refused.\n");
+	return -EPERM;
+}
+
 struct read_storage_sccb {
 	struct sccb_header header;
 	u16 max_id;
@@ -534,8 +546,20 @@
 	u32 entries[0];
 } __packed;
 
+static struct dev_pm_ops sclp_mem_pm_ops = {
+	.freeze		= sclp_mem_freeze,
+};
+
+static struct platform_driver sclp_mem_pdrv = {
+	.driver = {
+		.name	= "sclp_mem",
+		.pm	= &sclp_mem_pm_ops,
+	},
+};
+
 static int __init sclp_detect_standby_memory(void)
 {
+	struct platform_device *sclp_pdev;
 	struct read_storage_sccb *sccb;
 	int i, id, assigned, rc;
 
@@ -588,7 +612,17 @@
 	rc = register_memory_notifier(&sclp_mem_nb);
 	if (rc)
 		goto out;
+	rc = platform_driver_register(&sclp_mem_pdrv);
+	if (rc)
+		goto out;
+	sclp_pdev = platform_device_register_simple("sclp_mem", -1, NULL, 0);
+	rc = IS_ERR(sclp_pdev) ? PTR_ERR(sclp_pdev) : 0;
+	if (rc)
+		goto out_driver;
 	sclp_add_standby_memory();
+	goto out;
+out_driver:
+	platform_driver_unregister(&sclp_mem_pdrv);
 out:
 	free_page((unsigned long) sccb);
 	return rc;
diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c
index 9a25c4b..336811a 100644
--- a/drivers/s390/char/sclp_con.c
+++ b/drivers/s390/char/sclp_con.c
@@ -1,11 +1,9 @@
 /*
- *  drivers/s390/char/sclp_con.c
- *    SCLP line mode console driver
+ * SCLP line mode console driver
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 1999, 2009
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #include <linux/kmod.h>
@@ -32,13 +30,14 @@
 static struct list_head sclp_con_pages;
 /* List of full struct sclp_buffer structures ready for output */
 static struct list_head sclp_con_outqueue;
-/* Counter how many buffers are emitted (max 1) and how many */
-/* are on the output queue. */
-static int sclp_con_buffer_count;
 /* Pointer to current console buffer */
 static struct sclp_buffer *sclp_conbuf;
 /* Timer for delayed output of console messages */
 static struct timer_list sclp_con_timer;
+/* Suspend mode flag */
+static int sclp_con_suspended;
+/* Flag that output queue is currently running */
+static int sclp_con_queue_running;
 
 /* Output format for console messages */
 static unsigned short sclp_con_columns;
@@ -53,42 +52,71 @@
 	do {
 		page = sclp_unmake_buffer(buffer);
 		spin_lock_irqsave(&sclp_con_lock, flags);
+
 		/* Remove buffer from outqueue */
 		list_del(&buffer->list);
-		sclp_con_buffer_count--;
 		list_add_tail((struct list_head *) page, &sclp_con_pages);
+
 		/* Check if there is a pending buffer on the out queue. */
 		buffer = NULL;
 		if (!list_empty(&sclp_con_outqueue))
-			buffer = list_entry(sclp_con_outqueue.next,
-					    struct sclp_buffer, list);
+			buffer = list_first_entry(&sclp_con_outqueue,
+						  struct sclp_buffer, list);
+		if (!buffer || sclp_con_suspended) {
+			sclp_con_queue_running = 0;
+			spin_unlock_irqrestore(&sclp_con_lock, flags);
+			break;
+		}
 		spin_unlock_irqrestore(&sclp_con_lock, flags);
-	} while (buffer && sclp_emit_buffer(buffer, sclp_conbuf_callback));
+	} while (sclp_emit_buffer(buffer, sclp_conbuf_callback));
 }
 
-static void
-sclp_conbuf_emit(void)
+/*
+ * Finalize and emit first pending buffer.
+ */
+static void sclp_conbuf_emit(void)
 {
 	struct sclp_buffer* buffer;
 	unsigned long flags;
-	int count;
 	int rc;
 
 	spin_lock_irqsave(&sclp_con_lock, flags);
-	buffer = sclp_conbuf;
+	if (sclp_conbuf)
+		list_add_tail(&sclp_conbuf->list, &sclp_con_outqueue);
 	sclp_conbuf = NULL;
-	if (buffer == NULL) {
-		spin_unlock_irqrestore(&sclp_con_lock, flags);
-		return;
-	}
-	list_add_tail(&buffer->list, &sclp_con_outqueue);
-	count = sclp_con_buffer_count++;
+	if (sclp_con_queue_running || sclp_con_suspended)
+		goto out_unlock;
+	if (list_empty(&sclp_con_outqueue))
+		goto out_unlock;
+	buffer = list_first_entry(&sclp_con_outqueue, struct sclp_buffer,
+				  list);
+	sclp_con_queue_running = 1;
 	spin_unlock_irqrestore(&sclp_con_lock, flags);
-	if (count)
-		return;
+
 	rc = sclp_emit_buffer(buffer, sclp_conbuf_callback);
 	if (rc)
 		sclp_conbuf_callback(buffer, rc);
+	return;
+out_unlock:
+	spin_unlock_irqrestore(&sclp_con_lock, flags);
+}
+
+/*
+ * Wait until out queue is empty
+ */
+static void sclp_console_sync_queue(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sclp_con_lock, flags);
+	if (timer_pending(&sclp_con_timer))
+		del_timer_sync(&sclp_con_timer);
+	while (sclp_con_queue_running) {
+		spin_unlock_irqrestore(&sclp_con_lock, flags);
+		sclp_sync_wait();
+		spin_lock_irqsave(&sclp_con_lock, flags);
+	}
+	spin_unlock_irqrestore(&sclp_con_lock, flags);
 }
 
 /*
@@ -123,6 +151,8 @@
 		/* make sure we have a console output buffer */
 		if (sclp_conbuf == NULL) {
 			while (list_empty(&sclp_con_pages)) {
+				if (sclp_con_suspended)
+					goto out;
 				spin_unlock_irqrestore(&sclp_con_lock, flags);
 				sclp_sync_wait();
 				spin_lock_irqsave(&sclp_con_lock, flags);
@@ -157,6 +187,7 @@
 		sclp_con_timer.expires = jiffies + HZ/10;
 		add_timer(&sclp_con_timer);
 	}
+out:
 	spin_unlock_irqrestore(&sclp_con_lock, flags);
 }
 
@@ -168,30 +199,43 @@
 }
 
 /*
- * This routine is called from panic when the kernel
- * is going to give up. We have to make sure that all buffers
- * will be flushed to the SCLP.
+ * Make sure that all buffers will be flushed to the SCLP.
  */
 static void
 sclp_console_flush(void)
 {
-	unsigned long flags;
-
 	sclp_conbuf_emit();
-	spin_lock_irqsave(&sclp_con_lock, flags);
-	if (timer_pending(&sclp_con_timer))
-		del_timer(&sclp_con_timer);
-	while (sclp_con_buffer_count > 0) {
-		spin_unlock_irqrestore(&sclp_con_lock, flags);
-		sclp_sync_wait();
-		spin_lock_irqsave(&sclp_con_lock, flags);
-	}
-	spin_unlock_irqrestore(&sclp_con_lock, flags);
+	sclp_console_sync_queue();
 }
 
-static int
-sclp_console_notify(struct notifier_block *self,
-			  unsigned long event, void *data)
+/*
+ * Resume console: If there are cached messages, emit them.
+ */
+static void sclp_console_resume(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sclp_con_lock, flags);
+	sclp_con_suspended = 0;
+	spin_unlock_irqrestore(&sclp_con_lock, flags);
+	sclp_conbuf_emit();
+}
+
+/*
+ * Suspend console: Set suspend flag and flush console
+ */
+static void sclp_console_suspend(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sclp_con_lock, flags);
+	sclp_con_suspended = 1;
+	spin_unlock_irqrestore(&sclp_con_lock, flags);
+	sclp_console_flush();
+}
+
+static int sclp_console_notify(struct notifier_block *self,
+			       unsigned long event, void *data)
 {
 	sclp_console_flush();
 	return NOTIFY_OK;
@@ -199,7 +243,7 @@
 
 static struct notifier_block on_panic_nb = {
 	.notifier_call = sclp_console_notify,
-	.priority = 1,
+	.priority = SCLP_PANIC_PRIO_CLIENT,
 };
 
 static struct notifier_block on_reboot_nb = {
@@ -221,6 +265,22 @@
 };
 
 /*
+ * This function is called for SCLP suspend and resume events.
+ */
+void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event)
+{
+	switch (sclp_pm_event) {
+	case SCLP_PM_EVENT_FREEZE:
+		sclp_console_suspend();
+		break;
+	case SCLP_PM_EVENT_RESTORE:
+	case SCLP_PM_EVENT_THAW:
+		sclp_console_resume();
+		break;
+	}
+}
+
+/*
  * called by console_init() in drivers/char/tty_io.c at boot-time.
  */
 static int __init
@@ -243,7 +303,6 @@
 	}
 	INIT_LIST_HEAD(&sclp_con_outqueue);
 	spin_lock_init(&sclp_con_lock);
-	sclp_con_buffer_count = 0;
 	sclp_conbuf = NULL;
 	init_timer(&sclp_con_timer);
 
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index 710af42..4be63be 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/sclp_rw.c
- *     driver: reading from and writing to system console on S/390 via SCLP
+ * driver: reading from and writing to system console on S/390 via SCLP
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corp. 1999, 2009
+ *
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #include <linux/kmod.h>
@@ -26,9 +25,16 @@
  */
 #define MAX_SCCB_ROOM (PAGE_SIZE - sizeof(struct sclp_buffer))
 
+static void sclp_rw_pm_event(struct sclp_register *reg,
+			     enum sclp_pm_event sclp_pm_event)
+{
+	sclp_console_pm_event(sclp_pm_event);
+}
+
 /* Event type structure for write message and write priority message */
 static struct sclp_register sclp_rw_event = {
-	.send_mask = EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK
+	.send_mask = EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK,
+	.pm_event_fn = sclp_rw_pm_event,
 };
 
 /*
diff --git a/drivers/s390/char/sclp_rw.h b/drivers/s390/char/sclp_rw.h
index 6aa7a69..85f491e 100644
--- a/drivers/s390/char/sclp_rw.h
+++ b/drivers/s390/char/sclp_rw.h
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/char/sclp_rw.h
- *    interface to the SCLP-read/write driver
+ * interface to the SCLP-read/write driver
  *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Peschke <mpeschke@de.ibm.com>
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
+ * Copyright IBM Corporation 1999, 2009
+ *
+ * Author(s): Martin Peschke <mpeschke@de.ibm.com>
+ *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
 #ifndef __SCLP_RW_H__
@@ -93,4 +92,5 @@
 void sclp_set_htab(struct sclp_buffer *, unsigned short);
 int sclp_chars_in_buffer(struct sclp_buffer *);
 
+void sclp_console_pm_event(enum sclp_pm_event sclp_pm_event);
 #endif	/* __SCLP_RW_H__ */
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index a839aa5..5518e24 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -1,10 +1,9 @@
 /*
- *  drivers/s390/char/sclp_vt220.c
- *    SCLP VT220 terminal driver.
+ * SCLP VT220 terminal driver.
  *
- *  S390 version
- *    Copyright IBM Corp. 2003,2008
- *    Author(s): Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com>
+ * Copyright IBM Corp. 2003, 2009
+ *
+ * Author(s): Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com>
  */
 
 #include <linux/module.h>
@@ -69,8 +68,11 @@
 /* List of pending requests */
 static struct list_head sclp_vt220_outqueue;
 
-/* Number of requests in outqueue */
-static int sclp_vt220_outqueue_count;
+/* Suspend mode flag */
+static int sclp_vt220_suspended;
+
+/* Flag that output queue is currently running */
+static int sclp_vt220_queue_running;
 
 /* Timer used for delaying write requests to merge subsequent messages into
  * a single buffer */
@@ -92,6 +94,8 @@
 static int sclp_vt220_flush_later;
 
 static void sclp_vt220_receiver_fn(struct evbuf_header *evbuf);
+static void sclp_vt220_pm_event_fn(struct sclp_register *reg,
+				   enum sclp_pm_event sclp_pm_event);
 static int __sclp_vt220_emit(struct sclp_vt220_request *request);
 static void sclp_vt220_emit_current(void);
 
@@ -100,7 +104,8 @@
 	.send_mask		= EVTYP_VT220MSG_MASK,
 	.receive_mask		= EVTYP_VT220MSG_MASK,
 	.state_change_fn	= NULL,
-	.receiver_fn		= sclp_vt220_receiver_fn
+	.receiver_fn		= sclp_vt220_receiver_fn,
+	.pm_event_fn		= sclp_vt220_pm_event_fn,
 };
 
 
@@ -120,15 +125,19 @@
 		spin_lock_irqsave(&sclp_vt220_lock, flags);
 		/* Move request from outqueue to empty queue */
 		list_del(&request->list);
-		sclp_vt220_outqueue_count--;
 		list_add_tail((struct list_head *) page, &sclp_vt220_empty);
 		/* Check if there is a pending buffer on the out queue. */
 		request = NULL;
 		if (!list_empty(&sclp_vt220_outqueue))
 			request = list_entry(sclp_vt220_outqueue.next,
 					     struct sclp_vt220_request, list);
+		if (!request || sclp_vt220_suspended) {
+			sclp_vt220_queue_running = 0;
+			spin_unlock_irqrestore(&sclp_vt220_lock, flags);
+			break;
+		}
 		spin_unlock_irqrestore(&sclp_vt220_lock, flags);
-	} while (request && __sclp_vt220_emit(request));
+	} while (__sclp_vt220_emit(request));
 	if (request == NULL && sclp_vt220_flush_later)
 		sclp_vt220_emit_current();
 	/* Check if the tty needs a wake up call */
@@ -212,26 +221,7 @@
 }
 
 /*
- * Queue and emit given request.
- */
-static void
-sclp_vt220_emit(struct sclp_vt220_request *request)
-{
-	unsigned long flags;
-	int count;
-
-	spin_lock_irqsave(&sclp_vt220_lock, flags);
-	list_add_tail(&request->list, &sclp_vt220_outqueue);
-	count = sclp_vt220_outqueue_count++;
-	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
-	/* Emit only the first buffer immediately - callback takes care of
-	 * the rest */
-	if (count == 0 && __sclp_vt220_emit(request))
-		sclp_vt220_process_queue(request);
-}
-
-/*
- * Queue and emit current request. Return zero on success, non-zero otherwise.
+ * Queue and emit current request.
  */
 static void
 sclp_vt220_emit_current(void)
@@ -241,22 +231,33 @@
 	struct sclp_vt220_sccb *sccb;
 
 	spin_lock_irqsave(&sclp_vt220_lock, flags);
-	request = NULL;
-	if (sclp_vt220_current_request != NULL) {
+	if (sclp_vt220_current_request) {
 		sccb = (struct sclp_vt220_sccb *) 
 				sclp_vt220_current_request->sclp_req.sccb;
 		/* Only emit buffers with content */
 		if (sccb->header.length != sizeof(struct sclp_vt220_sccb)) {
-			request = sclp_vt220_current_request;
+			list_add_tail(&sclp_vt220_current_request->list,
+				      &sclp_vt220_outqueue);
 			sclp_vt220_current_request = NULL;
 			if (timer_pending(&sclp_vt220_timer))
 				del_timer(&sclp_vt220_timer);
 		}
 		sclp_vt220_flush_later = 0;
 	}
+	if (sclp_vt220_queue_running || sclp_vt220_suspended)
+		goto out_unlock;
+	if (list_empty(&sclp_vt220_outqueue))
+		goto out_unlock;
+	request = list_first_entry(&sclp_vt220_outqueue,
+				   struct sclp_vt220_request, list);
+	sclp_vt220_queue_running = 1;
 	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
-	if (request != NULL)
-		sclp_vt220_emit(request);
+
+	if (__sclp_vt220_emit(request))
+		sclp_vt220_process_queue(request);
+	return;
+out_unlock:
+	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
 }
 
 #define SCLP_NORMAL_WRITE	0x00
@@ -396,7 +397,7 @@
 		if (sclp_vt220_current_request == NULL) {
 			while (list_empty(&sclp_vt220_empty)) {
 				spin_unlock_irqrestore(&sclp_vt220_lock, flags);
-				if (may_fail)
+				if (may_fail || sclp_vt220_suspended)
 					goto out;
 				else
 					sclp_sync_wait();
@@ -531,7 +532,7 @@
 static void
 sclp_vt220_flush_chars(struct tty_struct *tty)
 {
-	if (sclp_vt220_outqueue_count == 0)
+	if (!sclp_vt220_queue_running)
 		sclp_vt220_emit_current();
 	else
 		sclp_vt220_flush_later = 1;
@@ -635,7 +636,6 @@
 	init_timer(&sclp_vt220_timer);
 	sclp_vt220_current_request = NULL;
 	sclp_vt220_buffered_chars = 0;
-	sclp_vt220_outqueue_count = 0;
 	sclp_vt220_tty = NULL;
 	sclp_vt220_flush_later = 0;
 
@@ -736,7 +736,7 @@
 	spin_lock_irqsave(&sclp_vt220_lock, flags);
 	if (timer_pending(&sclp_vt220_timer))
 		del_timer(&sclp_vt220_timer);
-	while (sclp_vt220_outqueue_count > 0) {
+	while (sclp_vt220_queue_running) {
 		spin_unlock_irqrestore(&sclp_vt220_lock, flags);
 		sclp_sync_wait();
 		spin_lock_irqsave(&sclp_vt220_lock, flags);
@@ -744,6 +744,46 @@
 	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
 }
 
+/*
+ * Resume console: If there are cached messages, emit them.
+ */
+static void sclp_vt220_resume(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sclp_vt220_lock, flags);
+	sclp_vt220_suspended = 0;
+	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
+	sclp_vt220_emit_current();
+}
+
+/*
+ * Suspend console: Set suspend flag and flush console
+ */
+static void sclp_vt220_suspend(void)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sclp_vt220_lock, flags);
+	sclp_vt220_suspended = 1;
+	spin_unlock_irqrestore(&sclp_vt220_lock, flags);
+	__sclp_vt220_flush_buffer();
+}
+
+static void sclp_vt220_pm_event_fn(struct sclp_register *reg,
+				   enum sclp_pm_event sclp_pm_event)
+{
+	switch (sclp_pm_event) {
+	case SCLP_PM_EVENT_FREEZE:
+		sclp_vt220_suspend();
+		break;
+	case SCLP_PM_EVENT_RESTORE:
+	case SCLP_PM_EVENT_THAW:
+		sclp_vt220_resume();
+		break;
+	}
+}
+
 static int
 sclp_vt220_notify(struct notifier_block *self,
 			  unsigned long event, void *data)
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index 5469e09..a263337 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -3,7 +3,7 @@
  *    tape device driver for 3480/3490E/3590 tapes.
  *
  *  S390 and zSeries version
- *    Copyright IBM Corp. 2001,2006
+ *    Copyright IBM Corp. 2001, 2009
  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  *		 Tuan Ngo-Anh <ngoanh@de.ibm.com>
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -286,6 +286,7 @@
 
 extern int tape_generic_online(struct tape_device *, struct tape_discipline *);
 extern int tape_generic_offline(struct ccw_device *);
+extern int tape_generic_pm_suspend(struct ccw_device *);
 
 /* Externals from tape_devmap.c */
 extern int tape_generic_probe(struct ccw_device *);
diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c
index 997ed58..5a519fa 100644
--- a/drivers/s390/char/tape_34xx.c
+++ b/drivers/s390/char/tape_34xx.c
@@ -2,7 +2,7 @@
  *  drivers/s390/char/tape_34xx.c
  *    tape device discipline for 3480/3490 tapes.
  *
- *    Copyright (C) IBM Corp. 2001,2006
+ *    Copyright IBM Corp. 2001, 2009
  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  *		 Tuan Ngo-Anh <ngoanh@de.ibm.com>
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -1302,6 +1302,7 @@
 	.remove = tape_generic_remove,
 	.set_online = tape_34xx_online,
 	.set_offline = tape_generic_offline,
+	.freeze = tape_generic_pm_suspend,
 };
 
 static int
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index 5de27c9..418f72d 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -2,7 +2,7 @@
  *  drivers/s390/char/tape_3590.c
  *    tape device discipline for 3590 tapes.
  *
- *    Copyright IBM Corp. 2001,2006
+ *    Copyright IBM Corp. 2001, 2009
  *    Author(s): Stefan Bader <shbader@de.ibm.com>
  *		 Michael Holzheu <holzheu@de.ibm.com>
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -1715,6 +1715,7 @@
 	.remove = tape_generic_remove,
 	.set_offline = tape_generic_offline,
 	.set_online = tape_3590_online,
+	.freeze = tape_generic_pm_suspend,
 };
 
 /*
diff --git a/drivers/s390/char/tape_core.c b/drivers/s390/char/tape_core.c
index dfeb0d4..595aa04 100644
--- a/drivers/s390/char/tape_core.c
+++ b/drivers/s390/char/tape_core.c
@@ -3,7 +3,7 @@
  *    basic function of the tape device driver
  *
  *  S390 and zSeries version
- *    Copyright IBM Corp. 2001,2006
+ *    Copyright IBM Corp. 2001, 2009
  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  *		 Michael Holzheu <holzheu@de.ibm.com>
  *		 Tuan Ngo-Anh <ngoanh@de.ibm.com>
@@ -380,6 +380,55 @@
 }
 
 /*
+ * Suspend device.
+ *
+ * Called by the common I/O layer if the drive should be suspended on user
+ * request. We refuse to suspend if the device is loaded or in use for the
+ * following reason:
+ * While the Linux guest is suspended, it might be logged off which causes
+ * devices to be detached. Tape devices are automatically rewound and unloaded
+ * during DETACH processing (unless the tape device was attached with the
+ * NOASSIGN or MULTIUSER option). After rewind/unload, there is no way to
+ * resume the original state of the tape device, since we would need to
+ * manually re-load the cartridge which was active at suspend time.
+ */
+int tape_generic_pm_suspend(struct ccw_device *cdev)
+{
+	struct tape_device *device;
+
+	device = cdev->dev.driver_data;
+	if (!device) {
+		return -ENODEV;
+	}
+
+	DBF_LH(3, "(%08x): tape_generic_pm_suspend(%p)\n",
+		device->cdev_id, device);
+
+	if (device->medium_state != MS_UNLOADED) {
+		pr_err("A cartridge is loaded in tape device %s, "
+		       "refusing to suspend\n", dev_name(&cdev->dev));
+		return -EBUSY;
+	}
+
+	spin_lock_irq(get_ccwdev_lock(device->cdev));
+	switch (device->tape_state) {
+		case TS_INIT:
+		case TS_NOT_OPER:
+		case TS_UNUSED:
+			spin_unlock_irq(get_ccwdev_lock(device->cdev));
+			break;
+		default:
+			pr_err("Tape device %s is busy, refusing to "
+			       "suspend\n", dev_name(&cdev->dev));
+			spin_unlock_irq(get_ccwdev_lock(device->cdev));
+			return -EBUSY;
+	}
+
+	DBF_LH(3, "(%08x): Drive suspended.\n", device->cdev_id);
+	return 0;
+}
+
+/*
  * Set device offline.
  *
  * Called by the common I/O layer if the drive should set offline on user
@@ -1273,6 +1322,7 @@
 EXPORT_SYMBOL(tape_generic_probe);
 EXPORT_SYMBOL(tape_generic_online);
 EXPORT_SYMBOL(tape_generic_offline);
+EXPORT_SYMBOL(tape_generic_pm_suspend);
 EXPORT_SYMBOL(tape_put_device);
 EXPORT_SYMBOL(tape_get_device_reference);
 EXPORT_SYMBOL(tape_state_verbose);
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index ee1b418..411cfa3 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -3,7 +3,7 @@
  *	character device driver for reading z/VM system service records
  *
  *
- *	Copyright 2004 IBM Corporation
+ *	Copyright IBM Corp. 2004, 2009
  *	character device driver for reading z/VM system service records,
  *	Version 1.0
  *	Author(s): Xenia Tkatschow <xenia@us.ibm.com>
@@ -660,6 +660,29 @@
 	NULL,
 };
 
+static int vmlogrdr_pm_prepare(struct device *dev)
+{
+	int rc;
+	struct vmlogrdr_priv_t *priv = dev->driver_data;
+
+	rc = 0;
+	if (priv) {
+		spin_lock_bh(&priv->priv_lock);
+		if (priv->dev_in_use)
+			rc = -EBUSY;
+		spin_unlock_bh(&priv->priv_lock);
+	}
+	if (rc)
+		pr_err("vmlogrdr: device %s is busy. Refuse to suspend.\n",
+		       dev_name(dev));
+	return rc;
+}
+
+
+static struct dev_pm_ops vmlogrdr_pm_ops = {
+	.prepare = vmlogrdr_pm_prepare,
+};
+
 static struct attribute_group vmlogrdr_attr_group = {
 	.attrs = vmlogrdr_attrs,
 };
@@ -668,6 +691,7 @@
 static struct device_driver vmlogrdr_driver = {
 	.name = "vmlogrdr",
 	.bus  = &iucv_bus,
+	.pm = &vmlogrdr_pm_ops,
 };
 
 
@@ -729,6 +753,7 @@
 		dev->bus = &iucv_bus;
 		dev->parent = iucv_root;
 		dev->driver = &vmlogrdr_driver;
+		dev->driver_data = priv;
 		/*
 		 * The release function could be called after the
 		 * module has been unloaded. It's _only_ task is to
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 6492b20..7d9e67cb 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -2,7 +2,7 @@
  * Linux driver for System z and s390 unit record devices
  * (z/VM virtual punch, reader, printer)
  *
- * Copyright IBM Corp. 2001, 2007
+ * Copyright IBM Corp. 2001, 2009
  * Authors: Malcolm Beattie <beattiem@uk.ibm.com>
  *	    Michael Holzheu <holzheu@de.ibm.com>
  *	    Frank Munzert <munzert@de.ibm.com>
@@ -60,6 +60,7 @@
 static void ur_remove(struct ccw_device *cdev);
 static int ur_set_online(struct ccw_device *cdev);
 static int ur_set_offline(struct ccw_device *cdev);
+static int ur_pm_suspend(struct ccw_device *cdev);
 
 static struct ccw_driver ur_driver = {
 	.name		= "vmur",
@@ -69,6 +70,7 @@
 	.remove		= ur_remove,
 	.set_online	= ur_set_online,
 	.set_offline	= ur_set_offline,
+	.freeze		= ur_pm_suspend,
 };
 
 static DEFINE_MUTEX(vmur_mutex);
@@ -158,6 +160,28 @@
 }
 
 /*
+ * State and contents of ur devices can be changed by class D users issuing
+ * CP commands such as PURGE or TRANSFER, while the Linux guest is suspended.
+ * Also the Linux guest might be logged off, which causes all active spool
+ * files to be closed.
+ * So we cannot guarantee that spool files are still the same when the Linux
+ * guest is resumed. In order to avoid unpredictable results at resume time
+ * we simply refuse to suspend if a ur device node is open.
+ */
+static int ur_pm_suspend(struct ccw_device *cdev)
+{
+	struct urdev *urd = cdev->dev.driver_data;
+
+	TRACE("ur_pm_suspend: cdev=%p\n", cdev);
+	if (urd->open_flag) {
+		pr_err("Unit record device %s is busy, %s refusing to "
+		       "suspend.\n", dev_name(&cdev->dev), ur_banner);
+		return -EBUSY;
+	}
+	return 0;
+}
+
+/*
  * Low-level functions to do I/O to a ur device.
  *     alloc_chan_prog
  *     free_chan_prog
diff --git a/drivers/s390/char/vmwatchdog.c b/drivers/s390/char/vmwatchdog.c
index 21a2a82..cb7854c 100644
--- a/drivers/s390/char/vmwatchdog.c
+++ b/drivers/s390/char/vmwatchdog.c
@@ -1,17 +1,23 @@
 /*
  * Watchdog implementation based on z/VM Watchdog Timer API
  *
+ * Copyright IBM Corp. 2004,2009
+ *
  * The user space watchdog daemon can use this driver as
  * /dev/vmwatchdog to have z/VM execute the specified CP
  * command when the timeout expires. The default command is
  * "IPL", which which cause an immediate reboot.
  */
+#define KMSG_COMPONENT "vmwatchdog"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/suspend.h>
 #include <linux/watchdog.h>
 #include <linux/smp_lock.h>
 
@@ -43,6 +49,9 @@
 static unsigned long vmwdt_is_open;
 static int vmwdt_expect_close;
 
+#define VMWDT_OPEN	0	/* devnode is open or suspend in progress */
+#define VMWDT_RUNNING	1	/* The watchdog is armed */
+
 enum vmwdt_func {
 	/* function codes */
 	wdt_init   = 0,
@@ -92,6 +101,7 @@
 	EBC_TOUPPER(ebc_cmd, MAX_CMDLEN);
 
 	func = vmwdt_conceal ? (wdt_init | wdt_conceal) : wdt_init;
+	set_bit(VMWDT_RUNNING, &vmwdt_is_open);
 	ret = __diag288(func, vmwdt_interval, ebc_cmd, len);
 	WARN_ON(ret != 0);
 	kfree(ebc_cmd);
@@ -102,6 +112,7 @@
 {
 	int ret = __diag288(wdt_cancel, 0, "", 0);
 	WARN_ON(ret != 0);
+	clear_bit(VMWDT_RUNNING, &vmwdt_is_open);
 	return ret;
 }
 
@@ -123,13 +134,13 @@
 {
 	int ret;
 	lock_kernel();
-	if (test_and_set_bit(0, &vmwdt_is_open)) {
+	if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open)) {
 		unlock_kernel();
 		return -EBUSY;
 	}
 	ret = vmwdt_keepalive();
 	if (ret)
-		clear_bit(0, &vmwdt_is_open);
+		clear_bit(VMWDT_OPEN, &vmwdt_is_open);
 	unlock_kernel();
 	return ret ? ret : nonseekable_open(i, f);
 }
@@ -139,7 +150,7 @@
 	if (vmwdt_expect_close == 42)
 		vmwdt_disable();
 	vmwdt_expect_close = 0;
-	clear_bit(0, &vmwdt_is_open);
+	clear_bit(VMWDT_OPEN, &vmwdt_is_open);
 	return 0;
 }
 
@@ -223,6 +234,57 @@
 	return count;
 }
 
+static int vmwdt_resume(void)
+{
+	clear_bit(VMWDT_OPEN, &vmwdt_is_open);
+	return NOTIFY_DONE;
+}
+
+/*
+ * It makes no sense to go into suspend while the watchdog is running.
+ * Depending on the memory size, the watchdog might trigger, while we
+ * are still saving the memory.
+ * We reuse the open flag to ensure that suspend and watchdog open are
+ * exclusive operations
+ */
+static int vmwdt_suspend(void)
+{
+	if (test_and_set_bit(VMWDT_OPEN, &vmwdt_is_open)) {
+		pr_err("The watchdog is in use. "
+			"This prevents hibernation or suspend.\n");
+		return NOTIFY_BAD;
+	}
+	if (test_bit(VMWDT_RUNNING, &vmwdt_is_open)) {
+		clear_bit(VMWDT_OPEN, &vmwdt_is_open);
+		pr_err("The watchdog is running. "
+			"This prevents hibernation or suspend.\n");
+		return NOTIFY_BAD;
+	}
+	return NOTIFY_DONE;
+}
+
+/*
+ * This function is called for suspend and resume.
+ */
+static int vmwdt_power_event(struct notifier_block *this, unsigned long event,
+			     void *ptr)
+{
+	switch (event) {
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		return vmwdt_resume();
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		return vmwdt_suspend();
+	default:
+		return NOTIFY_DONE;
+	}
+}
+
+static struct notifier_block vmwdt_power_notifier = {
+	.notifier_call = vmwdt_power_event,
+};
+
 static const struct file_operations vmwdt_fops = {
 	.open    = &vmwdt_open,
 	.release = &vmwdt_close,
@@ -244,12 +306,21 @@
 	ret = vmwdt_probe();
 	if (ret)
 		return ret;
-	return misc_register(&vmwdt_dev);
+	ret = register_pm_notifier(&vmwdt_power_notifier);
+	if (ret)
+		return ret;
+	ret = misc_register(&vmwdt_dev);
+	if (ret) {
+		unregister_pm_notifier(&vmwdt_power_notifier);
+		return ret;
+	}
+	return 0;
 }
 module_init(vmwdt_init);
 
 static void __exit vmwdt_exit(void)
 {
-	WARN_ON(misc_deregister(&vmwdt_dev) != 0);
+	unregister_pm_notifier(&vmwdt_power_notifier);
+	misc_deregister(&vmwdt_dev);
 }
 module_exit(vmwdt_exit);
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 22ce765..a5a62f1 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -1,11 +1,10 @@
 /*
- *  drivers/s390/cio/ccwgroup.c
  *  bus driver for ccwgroup
  *
- *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH,
- *                       IBM Corporation
- *    Author(s): Arnd Bergmann (arndb@de.ibm.com)
- *               Cornelia Huck (cornelia.huck@de.ibm.com)
+ *  Copyright IBM Corp. 2002, 2009
+ *
+ *  Author(s): Arnd Bergmann (arndb@de.ibm.com)
+ *	       Cornelia Huck (cornelia.huck@de.ibm.com)
  */
 #include <linux/module.h>
 #include <linux/errno.h>
@@ -501,6 +500,74 @@
 		gdrv->shutdown(gdev);
 }
 
+static int ccwgroup_pm_prepare(struct device *dev)
+{
+	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
+
+	/* Fail while device is being set online/offline. */
+	if (atomic_read(&gdev->onoff))
+		return -EAGAIN;
+
+	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)
+		return 0;
+
+	return gdrv->prepare ? gdrv->prepare(gdev) : 0;
+}
+
+static void ccwgroup_pm_complete(struct device *dev)
+{
+	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver);
+
+	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)
+		return;
+
+	if (gdrv->complete)
+		gdrv->complete(gdev);
+}
+
+static int ccwgroup_pm_freeze(struct device *dev)
+{
+	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
+
+	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)
+		return 0;
+
+	return gdrv->freeze ? gdrv->freeze(gdev) : 0;
+}
+
+static int ccwgroup_pm_thaw(struct device *dev)
+{
+	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
+
+	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)
+		return 0;
+
+	return gdrv->thaw ? gdrv->thaw(gdev) : 0;
+}
+
+static int ccwgroup_pm_restore(struct device *dev)
+{
+	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
+	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);
+
+	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)
+		return 0;
+
+	return gdrv->restore ? gdrv->restore(gdev) : 0;
+}
+
+static struct dev_pm_ops ccwgroup_pm_ops = {
+	.prepare = ccwgroup_pm_prepare,
+	.complete = ccwgroup_pm_complete,
+	.freeze = ccwgroup_pm_freeze,
+	.thaw = ccwgroup_pm_thaw,
+	.restore = ccwgroup_pm_restore,
+};
+
 static struct bus_type ccwgroup_bus_type = {
 	.name   = "ccwgroup",
 	.match  = ccwgroup_bus_match,
@@ -508,6 +575,7 @@
 	.probe  = ccwgroup_probe,
 	.remove = ccwgroup_remove,
 	.shutdown = ccwgroup_shutdown,
+	.pm = &ccwgroup_pm_ops,
 };
 
 
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 883f16f..1ecd3e5 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -549,8 +549,7 @@
 	return ret;
 }
 
-static int
-__chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
+int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
 {
 	struct {
 		struct chsc_header request;
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index ba59bce..425e8f8 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -90,6 +90,7 @@
 extern int chsc_enable_facility(int);
 struct channel_subsystem;
 extern int chsc_secm(struct channel_subsystem *, int);
+int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page);
 
 int chsc_chp_vary(struct chp_id chpid, int on);
 int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 93eca17..cc5144b 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -1,7 +1,8 @@
 /*
  * Driver for s390 chsc subchannels
  *
- * Copyright IBM Corp. 2008
+ * Copyright IBM Corp. 2008, 2009
+ *
  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
  *
  */
@@ -112,6 +113,31 @@
 	cio_disable_subchannel(sch);
 }
 
+static int chsc_subchannel_prepare(struct subchannel *sch)
+{
+	int cc;
+	struct schib schib;
+	/*
+	 * Don't allow suspend while the subchannel is not idle
+	 * since we don't have a way to clear the subchannel and
+	 * cannot disable it with a request running.
+	 */
+	cc = stsch(sch->schid, &schib);
+	if (!cc && scsw_stctl(&schib.scsw))
+		return -EAGAIN;
+	return 0;
+}
+
+static int chsc_subchannel_freeze(struct subchannel *sch)
+{
+	return cio_disable_subchannel(sch);
+}
+
+static int chsc_subchannel_restore(struct subchannel *sch)
+{
+	return cio_enable_subchannel(sch, (u32)(unsigned long)sch);
+}
+
 static struct css_device_id chsc_subchannel_ids[] = {
 	{ .match_flags = 0x1, .type =SUBCHANNEL_TYPE_CHSC, },
 	{ /* end of list */ },
@@ -125,6 +151,10 @@
 	.probe = chsc_subchannel_probe,
 	.remove = chsc_subchannel_remove,
 	.shutdown = chsc_subchannel_shutdown,
+	.prepare = chsc_subchannel_prepare,
+	.freeze = chsc_subchannel_freeze,
+	.thaw = chsc_subchannel_restore,
+	.restore = chsc_subchannel_restore,
 	.name = "chsc_subchannel",
 };
 
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index dc98b2c..30f5161 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -1204,6 +1204,11 @@
 
 DEVICE_ATTR(cmb_enable, 0644, cmb_enable_show, cmb_enable_store);
 
+int ccw_set_cmf(struct ccw_device *cdev, int enable)
+{
+	return cmbops->set(cdev, enable ? 2 : 0);
+}
+
 /**
  * enable_cmf() - switch on the channel measurement for a specific device
  *  @cdev:	The ccw device to be enabled
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 0085d89..85d43c6 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1,10 +1,10 @@
 /*
- *  drivers/s390/cio/css.c
- *  driver for channel subsystem
+ * driver for channel subsystem
  *
- *    Copyright IBM Corp. 2002,2008
- *    Author(s): Arnd Bergmann (arndb@de.ibm.com)
- *		 Cornelia Huck (cornelia.huck@de.ibm.com)
+ * Copyright IBM Corp. 2002, 2009
+ *
+ * Author(s): Arnd Bergmann (arndb@de.ibm.com)
+ *	      Cornelia Huck (cornelia.huck@de.ibm.com)
  */
 
 #define KMSG_COMPONENT "cio"
@@ -17,6 +17,7 @@
 #include <linux/errno.h>
 #include <linux/list.h>
 #include <linux/reboot.h>
+#include <linux/suspend.h>
 #include <asm/isc.h>
 #include <asm/crw.h>
 
@@ -780,6 +781,79 @@
 };
 
 /*
+ * Since the css devices are neither on a bus nor have a class
+ * nor have a special device type, we cannot stop/restart channel
+ * path measurements via the normal suspend/resume callbacks, but have
+ * to use notifiers.
+ */
+static int css_power_event(struct notifier_block *this, unsigned long event,
+			   void *ptr)
+{
+	void *secm_area;
+	int ret, i;
+
+	switch (event) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		ret = NOTIFY_DONE;
+		for (i = 0; i <= __MAX_CSSID; i++) {
+			struct channel_subsystem *css;
+
+			css = channel_subsystems[i];
+			mutex_lock(&css->mutex);
+			if (!css->cm_enabled) {
+				mutex_unlock(&css->mutex);
+				continue;
+			}
+			secm_area = (void *)get_zeroed_page(GFP_KERNEL |
+							    GFP_DMA);
+			if (secm_area) {
+				if (__chsc_do_secm(css, 0, secm_area))
+					ret = NOTIFY_BAD;
+				free_page((unsigned long)secm_area);
+			} else
+				ret = NOTIFY_BAD;
+
+			mutex_unlock(&css->mutex);
+		}
+		break;
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		ret = NOTIFY_DONE;
+		for (i = 0; i <= __MAX_CSSID; i++) {
+			struct channel_subsystem *css;
+
+			css = channel_subsystems[i];
+			mutex_lock(&css->mutex);
+			if (!css->cm_enabled) {
+				mutex_unlock(&css->mutex);
+				continue;
+			}
+			secm_area = (void *)get_zeroed_page(GFP_KERNEL |
+							    GFP_DMA);
+			if (secm_area) {
+				if (__chsc_do_secm(css, 1, secm_area))
+					ret = NOTIFY_BAD;
+				free_page((unsigned long)secm_area);
+			} else
+				ret = NOTIFY_BAD;
+
+			mutex_unlock(&css->mutex);
+		}
+		/* search for subchannels, which appeared during hibernation */
+		css_schedule_reprobe();
+		break;
+	default:
+		ret = NOTIFY_DONE;
+	}
+	return ret;
+
+}
+static struct notifier_block css_power_notifier = {
+	.notifier_call = css_power_event,
+};
+
+/*
  * Now that the driver core is running, we can setup our channel subsystem.
  * The struct subchannel's are created during probing (except for the
  * static console subchannel).
@@ -852,6 +926,11 @@
 	ret = register_reboot_notifier(&css_reboot_notifier);
 	if (ret)
 		goto out_unregister;
+	ret = register_pm_notifier(&css_power_notifier);
+	if (ret) {
+		unregister_reboot_notifier(&css_reboot_notifier);
+		goto out_unregister;
+	}
 	css_init_done = 1;
 
 	/* Enable default isc for I/O subchannels. */
@@ -953,6 +1032,73 @@
 	return ret;
 }
 
+static int css_pm_prepare(struct device *dev)
+{
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *drv;
+
+	if (mutex_is_locked(&sch->reg_mutex))
+		return -EAGAIN;
+	if (!sch->dev.driver)
+		return 0;
+	drv = to_cssdriver(sch->dev.driver);
+	/* Notify drivers that they may not register children. */
+	return drv->prepare ? drv->prepare(sch) : 0;
+}
+
+static void css_pm_complete(struct device *dev)
+{
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *drv;
+
+	if (!sch->dev.driver)
+		return;
+	drv = to_cssdriver(sch->dev.driver);
+	if (drv->complete)
+		drv->complete(sch);
+}
+
+static int css_pm_freeze(struct device *dev)
+{
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *drv;
+
+	if (!sch->dev.driver)
+		return 0;
+	drv = to_cssdriver(sch->dev.driver);
+	return drv->freeze ? drv->freeze(sch) : 0;
+}
+
+static int css_pm_thaw(struct device *dev)
+{
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *drv;
+
+	if (!sch->dev.driver)
+		return 0;
+	drv = to_cssdriver(sch->dev.driver);
+	return drv->thaw ? drv->thaw(sch) : 0;
+}
+
+static int css_pm_restore(struct device *dev)
+{
+	struct subchannel *sch = to_subchannel(dev);
+	struct css_driver *drv;
+
+	if (!sch->dev.driver)
+		return 0;
+	drv = to_cssdriver(sch->dev.driver);
+	return drv->restore ? drv->restore(sch) : 0;
+}
+
+static struct dev_pm_ops css_pm_ops = {
+	.prepare = css_pm_prepare,
+	.complete = css_pm_complete,
+	.freeze = css_pm_freeze,
+	.thaw = css_pm_thaw,
+	.restore = css_pm_restore,
+};
+
 struct bus_type css_bus_type = {
 	.name     = "css",
 	.match    = css_bus_match,
@@ -960,6 +1106,7 @@
 	.remove   = css_remove,
 	.shutdown = css_shutdown,
 	.uevent   = css_uevent,
+	.pm = &css_pm_ops,
 };
 
 /**
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 57ebf12..9763eee 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -70,6 +70,11 @@
  * @probe: function called on probe
  * @remove: function called on remove
  * @shutdown: called at device shutdown
+ * @prepare: prepare for pm state transition
+ * @complete: undo work done in @prepare
+ * @freeze: callback for freezing during hibernation snapshotting
+ * @thaw: undo work done in @freeze
+ * @restore: callback for restoring after hibernation
  * @name: name of the device driver
  */
 struct css_driver {
@@ -82,6 +87,11 @@
 	int (*probe)(struct subchannel *);
 	int (*remove)(struct subchannel *);
 	void (*shutdown)(struct subchannel *);
+	int (*prepare) (struct subchannel *);
+	void (*complete) (struct subchannel *);
+	int (*freeze)(struct subchannel *);
+	int (*thaw) (struct subchannel *);
+	int (*restore)(struct subchannel *);
 	const char *name;
 };
 
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 35441fa..3c57c1a 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -138,6 +138,19 @@
 };
 MODULE_DEVICE_TABLE(css, io_subchannel_ids);
 
+static int io_subchannel_prepare(struct subchannel *sch)
+{
+	struct ccw_device *cdev;
+	/*
+	 * Don't allow suspend while a ccw device registration
+	 * is still outstanding.
+	 */
+	cdev = sch_get_cdev(sch);
+	if (cdev && !device_is_registered(&cdev->dev))
+		return -EAGAIN;
+	return 0;
+}
+
 static struct css_driver io_subchannel_driver = {
 	.owner = THIS_MODULE,
 	.subchannel_type = io_subchannel_ids,
@@ -148,6 +161,7 @@
 	.probe = io_subchannel_probe,
 	.remove = io_subchannel_remove,
 	.shutdown = io_subchannel_shutdown,
+	.prepare = io_subchannel_prepare,
 };
 
 struct workqueue_struct *ccw_device_work;
@@ -1775,6 +1789,15 @@
 	return &console_cdev;
 }
 
+static int ccw_device_pm_restore(struct device *dev);
+
+int ccw_device_force_console(void)
+{
+	if (!console_cdev_in_use)
+		return -ENODEV;
+	return ccw_device_pm_restore(&console_cdev.dev);
+}
+EXPORT_SYMBOL_GPL(ccw_device_force_console);
 
 const char *cio_get_console_cdev_name(struct subchannel *sch)
 {
@@ -1895,6 +1918,242 @@
 	disable_cmf(cdev);
 }
 
+static int ccw_device_pm_prepare(struct device *dev)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+
+	if (work_pending(&cdev->private->kick_work))
+		return -EAGAIN;
+	/* Fail while device is being set online/offline. */
+	if (atomic_read(&cdev->private->onoff))
+		return -EAGAIN;
+
+	if (cdev->online && cdev->drv && cdev->drv->prepare)
+		return cdev->drv->prepare(cdev);
+
+	return 0;
+}
+
+static void ccw_device_pm_complete(struct device *dev)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+
+	if (cdev->online && cdev->drv && cdev->drv->complete)
+		cdev->drv->complete(cdev);
+}
+
+static int ccw_device_pm_freeze(struct device *dev)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	int ret, cm_enabled;
+
+	/* Fail suspend while device is in transistional state. */
+	if (!dev_fsm_final_state(cdev))
+		return -EAGAIN;
+	if (!cdev->online)
+		return 0;
+	if (cdev->drv && cdev->drv->freeze) {
+		ret = cdev->drv->freeze(cdev);
+		if (ret)
+			return ret;
+	}
+
+	spin_lock_irq(sch->lock);
+	cm_enabled = cdev->private->cmb != NULL;
+	spin_unlock_irq(sch->lock);
+	if (cm_enabled) {
+		/* Don't have the css write on memory. */
+		ret = ccw_set_cmf(cdev, 0);
+		if (ret)
+			return ret;
+	}
+	/* From here on, disallow device driver I/O. */
+	spin_lock_irq(sch->lock);
+	ret = cio_disable_subchannel(sch);
+	spin_unlock_irq(sch->lock);
+
+	return ret;
+}
+
+static int ccw_device_pm_thaw(struct device *dev)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	int ret, cm_enabled;
+
+	if (!cdev->online)
+		return 0;
+
+	spin_lock_irq(sch->lock);
+	/* Allow device driver I/O again. */
+	ret = cio_enable_subchannel(sch, (u32)(addr_t)sch);
+	cm_enabled = cdev->private->cmb != NULL;
+	spin_unlock_irq(sch->lock);
+	if (ret)
+		return ret;
+
+	if (cm_enabled) {
+		ret = ccw_set_cmf(cdev, 1);
+		if (ret)
+			return ret;
+	}
+
+	if (cdev->drv && cdev->drv->thaw)
+		ret = cdev->drv->thaw(cdev);
+
+	return ret;
+}
+
+static void __ccw_device_pm_restore(struct ccw_device *cdev)
+{
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	int ret;
+
+	if (cio_is_console(sch->schid))
+		goto out;
+	/*
+	 * While we were sleeping, devices may have gone or become
+	 * available again. Kick re-detection.
+	 */
+	spin_lock_irq(sch->lock);
+	cdev->private->flags.resuming = 1;
+	ret = ccw_device_recognition(cdev);
+	spin_unlock_irq(sch->lock);
+	if (ret) {
+		CIO_MSG_EVENT(0, "Couldn't start recognition for device "
+			      "%s (ret=%d)\n", dev_name(&cdev->dev), ret);
+		spin_lock_irq(sch->lock);
+		cdev->private->state = DEV_STATE_DISCONNECTED;
+		spin_unlock_irq(sch->lock);
+		/* notify driver after the resume cb */
+		goto out;
+	}
+	wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev) ||
+		   cdev->private->state == DEV_STATE_DISCONNECTED);
+
+out:
+	cdev->private->flags.resuming = 0;
+}
+
+static int resume_handle_boxed(struct ccw_device *cdev)
+{
+	cdev->private->state = DEV_STATE_BOXED;
+	if (ccw_device_notify(cdev, CIO_BOXED))
+		return 0;
+	ccw_device_schedule_sch_unregister(cdev);
+	return -ENODEV;
+}
+
+static int resume_handle_disc(struct ccw_device *cdev)
+{
+	cdev->private->state = DEV_STATE_DISCONNECTED;
+	if (ccw_device_notify(cdev, CIO_GONE))
+		return 0;
+	ccw_device_schedule_sch_unregister(cdev);
+	return -ENODEV;
+}
+
+static int ccw_device_pm_restore(struct device *dev)
+{
+	struct ccw_device *cdev = to_ccwdev(dev);
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	int ret = 0, cm_enabled;
+
+	__ccw_device_pm_restore(cdev);
+	spin_lock_irq(sch->lock);
+	if (cio_is_console(sch->schid)) {
+		cio_enable_subchannel(sch, (u32)(addr_t)sch);
+		spin_unlock_irq(sch->lock);
+		goto out_restore;
+	}
+	cdev->private->flags.donotify = 0;
+	/* check recognition results */
+	switch (cdev->private->state) {
+	case DEV_STATE_OFFLINE:
+		break;
+	case DEV_STATE_BOXED:
+		ret = resume_handle_boxed(cdev);
+		spin_unlock_irq(sch->lock);
+		if (ret)
+			goto out;
+		goto out_restore;
+	case DEV_STATE_DISCONNECTED:
+		goto out_disc_unlock;
+	default:
+		goto out_unreg_unlock;
+	}
+	/* check if the device id has changed */
+	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
+		CIO_MSG_EVENT(0, "resume: sch %s: failed (devno changed from "
+			      "%04x to %04x)\n", dev_name(&sch->dev),
+			      cdev->private->dev_id.devno,
+			      sch->schib.pmcw.dev);
+		goto out_unreg_unlock;
+	}
+	/* check if the device type has changed */
+	if (!ccw_device_test_sense_data(cdev)) {
+		ccw_device_update_sense_data(cdev);
+		PREPARE_WORK(&cdev->private->kick_work,
+			     ccw_device_do_unbind_bind);
+		queue_work(ccw_device_work, &cdev->private->kick_work);
+		ret = -ENODEV;
+		goto out_unlock;
+	}
+	if (!cdev->online) {
+		ret = 0;
+		goto out_unlock;
+	}
+	ret = ccw_device_online(cdev);
+	if (ret)
+		goto out_disc_unlock;
+
+	cm_enabled = cdev->private->cmb != NULL;
+	spin_unlock_irq(sch->lock);
+
+	wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
+	if (cdev->private->state != DEV_STATE_ONLINE) {
+		spin_lock_irq(sch->lock);
+		goto out_disc_unlock;
+	}
+	if (cm_enabled) {
+		ret = ccw_set_cmf(cdev, 1);
+		if (ret) {
+			CIO_MSG_EVENT(2, "resume: cdev %s: cmf failed "
+				      "(rc=%d)\n", dev_name(&cdev->dev), ret);
+			ret = 0;
+		}
+	}
+
+out_restore:
+	if (cdev->online && cdev->drv && cdev->drv->restore)
+		ret = cdev->drv->restore(cdev);
+out:
+	return ret;
+
+out_disc_unlock:
+	ret = resume_handle_disc(cdev);
+	spin_unlock_irq(sch->lock);
+	if (ret)
+		return ret;
+	goto out_restore;
+
+out_unreg_unlock:
+	ccw_device_schedule_sch_unregister(cdev);
+	ret = -ENODEV;
+out_unlock:
+	spin_unlock_irq(sch->lock);
+	return ret;
+}
+
+static struct dev_pm_ops ccw_pm_ops = {
+	.prepare = ccw_device_pm_prepare,
+	.complete = ccw_device_pm_complete,
+	.freeze = ccw_device_pm_freeze,
+	.thaw = ccw_device_pm_thaw,
+	.restore = ccw_device_pm_restore,
+};
+
 struct bus_type ccw_bus_type = {
 	.name   = "ccw",
 	.match  = ccw_bus_match,
@@ -1902,6 +2161,7 @@
 	.probe  = ccw_device_probe,
 	.remove = ccw_device_remove,
 	.shutdown = ccw_device_shutdown,
+	.pm = &ccw_pm_ops,
 };
 
 /**
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index f1cbbd9..e397510 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -87,6 +87,8 @@
 int ccw_device_recognition(struct ccw_device *);
 int ccw_device_online(struct ccw_device *);
 int ccw_device_offline(struct ccw_device *);
+void ccw_device_update_sense_data(struct ccw_device *);
+int ccw_device_test_sense_data(struct ccw_device *);
 void ccw_device_schedule_sch_unregister(struct ccw_device *);
 int ccw_purge_blacklisted(void);
 
@@ -133,5 +135,6 @@
 void retry_set_schib(struct ccw_device *cdev);
 void cmf_retry_copy_block(struct ccw_device *);
 int cmf_reenable(struct ccw_device *);
+int ccw_set_cmf(struct ccw_device *cdev, int enable);
 extern struct device_attribute dev_attr_cmb_enable;
 #endif
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index e460492..3db88c5 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -177,29 +177,21 @@
 	panic("Can't stop i/o on subchannel.\n");
 }
 
-static int
-ccw_device_handle_oper(struct ccw_device *cdev)
+void ccw_device_update_sense_data(struct ccw_device *cdev)
 {
-	struct subchannel *sch;
+	memset(&cdev->id, 0, sizeof(cdev->id));
+	cdev->id.cu_type   = cdev->private->senseid.cu_type;
+	cdev->id.cu_model  = cdev->private->senseid.cu_model;
+	cdev->id.dev_type  = cdev->private->senseid.dev_type;
+	cdev->id.dev_model = cdev->private->senseid.dev_model;
+}
 
-	sch = to_subchannel(cdev->dev.parent);
-	cdev->private->flags.recog_done = 1;
-	/*
-	 * Check if cu type and device type still match. If
-	 * not, it is certainly another device and we have to
-	 * de- and re-register.
-	 */
-	if (cdev->id.cu_type != cdev->private->senseid.cu_type ||
-	    cdev->id.cu_model != cdev->private->senseid.cu_model ||
-	    cdev->id.dev_type != cdev->private->senseid.dev_type ||
-	    cdev->id.dev_model != cdev->private->senseid.dev_model) {
-		PREPARE_WORK(&cdev->private->kick_work,
-			     ccw_device_do_unbind_bind);
-		queue_work(ccw_device_work, &cdev->private->kick_work);
-		return 0;
-	}
-	cdev->private->flags.donotify = 1;
-	return 1;
+int ccw_device_test_sense_data(struct ccw_device *cdev)
+{
+	return cdev->id.cu_type == cdev->private->senseid.cu_type &&
+		cdev->id.cu_model == cdev->private->senseid.cu_model &&
+		cdev->id.dev_type == cdev->private->senseid.dev_type &&
+		cdev->id.dev_model == cdev->private->senseid.dev_model;
 }
 
 /*
@@ -233,7 +225,7 @@
 ccw_device_recog_done(struct ccw_device *cdev, int state)
 {
 	struct subchannel *sch;
-	int notify, old_lpm, same_dev;
+	int old_lpm;
 
 	sch = to_subchannel(cdev->dev.parent);
 
@@ -263,8 +255,12 @@
 		wake_up(&cdev->private->wait_q);
 		return;
 	}
-	notify = 0;
-	same_dev = 0; /* Keep the compiler quiet... */
+	if (cdev->private->flags.resuming) {
+		cdev->private->state = state;
+		cdev->private->flags.recog_done = 1;
+		wake_up(&cdev->private->wait_q);
+		return;
+	}
 	switch (state) {
 	case DEV_STATE_NOT_OPER:
 		CIO_MSG_EVENT(2, "SenseID : unknown device %04x on "
@@ -273,34 +269,31 @@
 			      sch->schid.ssid, sch->schid.sch_no);
 		break;
 	case DEV_STATE_OFFLINE:
-		if (cdev->online) {
-			same_dev = ccw_device_handle_oper(cdev);
-			notify = 1;
+		if (!cdev->online) {
+			ccw_device_update_sense_data(cdev);
+			/* Issue device info message. */
+			CIO_MSG_EVENT(4, "SenseID : device 0.%x.%04x reports: "
+				      "CU  Type/Mod = %04X/%02X, Dev Type/Mod "
+				      "= %04X/%02X\n",
+				      cdev->private->dev_id.ssid,
+				      cdev->private->dev_id.devno,
+				      cdev->id.cu_type, cdev->id.cu_model,
+				      cdev->id.dev_type, cdev->id.dev_model);
+			break;
 		}
-		/* fill out sense information */
-		memset(&cdev->id, 0, sizeof(cdev->id));
-		cdev->id.cu_type   = cdev->private->senseid.cu_type;
-		cdev->id.cu_model  = cdev->private->senseid.cu_model;
-		cdev->id.dev_type  = cdev->private->senseid.dev_type;
-		cdev->id.dev_model = cdev->private->senseid.dev_model;
-		if (notify) {
-			cdev->private->state = DEV_STATE_OFFLINE;
-			if (same_dev) {
-				/* Get device online again. */
-				ccw_device_online(cdev);
-				wake_up(&cdev->private->wait_q);
-			}
-			return;
+		cdev->private->state = DEV_STATE_OFFLINE;
+		cdev->private->flags.recog_done = 1;
+		if (ccw_device_test_sense_data(cdev)) {
+			cdev->private->flags.donotify = 1;
+			ccw_device_online(cdev);
+			wake_up(&cdev->private->wait_q);
+		} else {
+			ccw_device_update_sense_data(cdev);
+			PREPARE_WORK(&cdev->private->kick_work,
+				     ccw_device_do_unbind_bind);
+			queue_work(ccw_device_work, &cdev->private->kick_work);
 		}
-		/* Issue device info message. */
-		CIO_MSG_EVENT(4, "SenseID : device 0.%x.%04x reports: "
-			      "CU  Type/Mod = %04X/%02X, Dev Type/Mod = "
-			      "%04X/%02X\n",
-			      cdev->private->dev_id.ssid,
-			      cdev->private->dev_id.devno,
-			      cdev->id.cu_type, cdev->id.cu_model,
-			      cdev->id.dev_type, cdev->id.dev_model);
-		break;
+		return;
 	case DEV_STATE_BOXED:
 		CIO_MSG_EVENT(0, "SenseID : boxed device %04x on "
 			      " subchannel 0.%x.%04x\n",
@@ -502,9 +495,6 @@
 	struct subchannel *sch;
 	int ret;
 
-	if ((cdev->private->state != DEV_STATE_NOT_OPER) &&
-	    (cdev->private->state != DEV_STATE_BOXED))
-		return -EINVAL;
 	sch = to_subchannel(cdev->dev.parent);
 	ret = cio_enable_subchannel(sch, (u32)(addr_t)sch);
 	if (ret != 0)
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index bf0a24a..2d0efee 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -1,10 +1,8 @@
 /*
- *  drivers/s390/cio/device_ops.c
+ * Copyright IBM Corp. 2002, 2009
  *
- *    Copyright (C) 2002 IBM Deutschland Entwicklung GmbH,
- *			 IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
- *               Cornelia Huck (cornelia.huck@de.ibm.com)
+ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *	      Cornelia Huck (cornelia.huck@de.ibm.com)
  */
 #include <linux/module.h>
 #include <linux/init.h>
@@ -116,12 +114,15 @@
 
 	if (!cdev || !cdev->dev.parent)
 		return -ENODEV;
+	sch = to_subchannel(cdev->dev.parent);
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state == DEV_STATE_NOT_OPER)
 		return -ENODEV;
 	if (cdev->private->state != DEV_STATE_ONLINE &&
 	    cdev->private->state != DEV_STATE_W4SENSE)
 		return -EINVAL;
-	sch = to_subchannel(cdev->dev.parent);
+
 	ret = cio_clear(sch);
 	if (ret == 0)
 		cdev->private->intparm = intparm;
@@ -162,6 +163,8 @@
 	if (!cdev || !cdev->dev.parent)
 		return -ENODEV;
 	sch = to_subchannel(cdev->dev.parent);
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state == DEV_STATE_NOT_OPER)
 		return -ENODEV;
 	if (cdev->private->state == DEV_STATE_VERIFY ||
@@ -337,12 +340,15 @@
 
 	if (!cdev || !cdev->dev.parent)
 		return -ENODEV;
+	sch = to_subchannel(cdev->dev.parent);
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state == DEV_STATE_NOT_OPER)
 		return -ENODEV;
 	if (cdev->private->state != DEV_STATE_ONLINE &&
 	    cdev->private->state != DEV_STATE_W4SENSE)
 		return -EINVAL;
-	sch = to_subchannel(cdev->dev.parent);
+
 	ret = cio_halt(sch);
 	if (ret == 0)
 		cdev->private->intparm = intparm;
@@ -369,6 +375,8 @@
 	if (!cdev || !cdev->dev.parent)
 		return -ENODEV;
 	sch = to_subchannel(cdev->dev.parent);
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state == DEV_STATE_NOT_OPER)
 		return -ENODEV;
 	if (cdev->private->state != DEV_STATE_ONLINE ||
@@ -580,6 +588,8 @@
 	int rc;
 
 	sch = to_subchannel(cdev->dev.parent);
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state != DEV_STATE_ONLINE)
 		return -EIO;
 	/* Adjust requested path mask to excluded varied off paths. */
@@ -669,6 +679,8 @@
 {
 	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 
+	if (!sch->schib.pmcw.ena)
+		return -EINVAL;
 	if (cdev->private->state != DEV_STATE_ONLINE)
 		return -EIO;
 	if (!scsw_is_tm(&sch->schib.scsw) ||
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index c4f3e7c..0b8f381 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -107,6 +107,7 @@
 		unsigned int recog_done:1;  /* dev. recog. complete */
 		unsigned int fake_irb:1;    /* deliver faked irb */
 		unsigned int intretry:1;    /* retry internal operation */
+		unsigned int resuming:1;    /* recognition while resume */
 	} __attribute__((packed)) flags;
 	unsigned long intparm;	/* user interruption parameter */
 	struct qdio_irq *qdio_data;
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index 1b34233..f370f8d 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -3,12 +3,12 @@
  *    ESCON CLAW network driver
  *
  *  Linux for zSeries version
- *    Copyright (C) 2002,2005 IBM Corporation
+ *    Copyright IBM Corp. 2002, 2009
  *  Author(s) Original code written by:
- *              Kazuo Iimura (iimura@jp.ibm.com)
+ *		Kazuo Iimura <iimura@jp.ibm.com>
  *   	      Rewritten by
- *              Andy Richter (richtera@us.ibm.com)
- *              Marc Price (mwprice@us.ibm.com)
+ *		Andy Richter <richtera@us.ibm.com>
+ *		Marc Price <mwprice@us.ibm.com>
  *
  *    sysfs parms:
  *   group x.x.rrrr,x.x.wwww
@@ -253,6 +253,11 @@
 /* Functions for unpack reads   */
 static void unpack_read(struct net_device *dev);
 
+static int claw_pm_prepare(struct ccwgroup_device *gdev)
+{
+	return -EPERM;
+}
+
 /* ccwgroup table  */
 
 static struct ccwgroup_driver claw_group_driver = {
@@ -264,6 +269,7 @@
         .remove      = claw_remove_device,
         .set_online  = claw_new_device,
         .set_offline = claw_shutdown_device,
+	.prepare     = claw_pm_prepare,
 };
 
 /*
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 54c4649..222e473 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1,7 +1,7 @@
 /*
  * drivers/s390/net/ctcm_main.c
  *
- * Copyright IBM Corp. 2001, 2007
+ * Copyright IBM Corp. 2001, 2009
  * Author(s):
  *	Original CTC driver(s):
  *		Fritz Elfert (felfert@millenux.com)
@@ -1688,6 +1688,38 @@
 	put_device(&cgdev->dev);
 }
 
+static int ctcm_pm_suspend(struct ccwgroup_device *gdev)
+{
+	struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
+
+	if (gdev->state == CCWGROUP_OFFLINE)
+		return 0;
+	netif_device_detach(priv->channel[READ]->netdev);
+	ctcm_close(priv->channel[READ]->netdev);
+	ccw_device_set_offline(gdev->cdev[1]);
+	ccw_device_set_offline(gdev->cdev[0]);
+	return 0;
+}
+
+static int ctcm_pm_resume(struct ccwgroup_device *gdev)
+{
+	struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
+	int rc;
+
+	if (gdev->state == CCWGROUP_OFFLINE)
+		return 0;
+	rc = ccw_device_set_online(gdev->cdev[1]);
+	if (rc)
+		goto err_out;
+	rc = ccw_device_set_online(gdev->cdev[0]);
+	if (rc)
+		goto err_out;
+	ctcm_open(priv->channel[READ]->netdev);
+err_out:
+	netif_device_attach(priv->channel[READ]->netdev);
+	return rc;
+}
+
 static struct ccwgroup_driver ctcm_group_driver = {
 	.owner       = THIS_MODULE,
 	.name        = CTC_DRIVER_NAME,
@@ -1697,6 +1729,9 @@
 	.remove      = ctcm_remove_device,
 	.set_online  = ctcm_new_device,
 	.set_offline = ctcm_shutdown_device,
+	.freeze	     = ctcm_pm_suspend,
+	.thaw	     = ctcm_pm_resume,
+	.restore     = ctcm_pm_resume,
 };
 
 
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index ba6d45d..8c67590 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1,15 +1,12 @@
 /*
- *  linux/drivers/s390/net/lcs.c
- *
  *  Linux for S/390 Lan Channel Station Network Driver
  *
- *  Copyright (C)  1999-2001 IBM Deutschland Entwicklung GmbH,
- *			     IBM Corporation
- *    Author(s): Original Code written by
- *			  DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
- *		 Rewritten by
- *			  Frank Pavlic (fpavlic@de.ibm.com) and
- *		 	  Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *  Copyright IBM Corp. 1999, 2009
+ *  Author(s): Original Code written by
+ *			DJ Barrow <djbarrow@de.ibm.com,barrow_dj@yahoo.com>
+ *	       Rewritten by
+ *			Frank Pavlic <fpavlic@de.ibm.com> and
+ *			Martin Schwidefsky <schwidefsky@de.ibm.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -2313,6 +2310,60 @@
 	put_device(&ccwgdev->dev);
 }
 
+static int lcs_pm_suspend(struct lcs_card *card)
+{
+	if (card->dev)
+		netif_device_detach(card->dev);
+	lcs_set_allowed_threads(card, 0);
+	lcs_wait_for_threads(card, 0xffffffff);
+	if (card->state != DEV_STATE_DOWN)
+		__lcs_shutdown_device(card->gdev, 1);
+	return 0;
+}
+
+static int lcs_pm_resume(struct lcs_card *card)
+{
+	int rc = 0;
+
+	if (card->state == DEV_STATE_RECOVER)
+		rc = lcs_new_device(card->gdev);
+	if (card->dev)
+		netif_device_attach(card->dev);
+	if (rc) {
+		dev_warn(&card->gdev->dev, "The lcs device driver "
+			"failed to recover the device\n");
+	}
+	return rc;
+}
+
+static int lcs_prepare(struct ccwgroup_device *gdev)
+{
+	return 0;
+}
+
+static void lcs_complete(struct ccwgroup_device *gdev)
+{
+	return;
+}
+
+static int lcs_freeze(struct ccwgroup_device *gdev)
+{
+	struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+	return lcs_pm_suspend(card);
+}
+
+static int lcs_thaw(struct ccwgroup_device *gdev)
+{
+	struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+	return lcs_pm_resume(card);
+}
+
+static int lcs_restore(struct ccwgroup_device *gdev)
+{
+	struct lcs_card *card = dev_get_drvdata(&gdev->dev);
+	return lcs_pm_resume(card);
+}
+
 /**
  * LCS ccwgroup driver registration
  */
@@ -2325,6 +2376,11 @@
 	.remove      = lcs_remove_device,
 	.set_online  = lcs_new_device,
 	.set_offline = lcs_shutdown_device,
+	.prepare     = lcs_prepare,
+	.complete    = lcs_complete,
+	.freeze	     = lcs_freeze,
+	.thaw	     = lcs_thaw,
+	.restore     = lcs_restore,
 };
 
 /**
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index d52a99f..52574ce 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1,11 +1,15 @@
 /*
  * IUCV network driver
  *
- * Copyright 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
+ * Copyright IBM Corp. 2001, 2009
  *
- * Sysfs integration and all bugs therein by Cornelia Huck
- * (cornelia.huck@de.ibm.com)
+ * Author(s):
+ *	Original netiucv driver:
+ *		Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
+ *	Sysfs integration and all bugs therein:
+ *		Cornelia Huck (cornelia.huck@de.ibm.com)
+ *	PM functions:
+ *		Ursula Braun (ursula.braun@de.ibm.com)
  *
  * Documentation used:
  *  the source of the original IUCV driver by:
@@ -149,10 +153,27 @@
 
 #define PRINTK_HEADER " iucv: "       /* for debugging */
 
+/* dummy device to make sure netiucv_pm functions are called */
+static struct device *netiucv_dev;
+
+static int netiucv_pm_prepare(struct device *);
+static void netiucv_pm_complete(struct device *);
+static int netiucv_pm_freeze(struct device *);
+static int netiucv_pm_restore_thaw(struct device *);
+
+static struct dev_pm_ops netiucv_pm_ops = {
+	.prepare = netiucv_pm_prepare,
+	.complete = netiucv_pm_complete,
+	.freeze = netiucv_pm_freeze,
+	.thaw = netiucv_pm_restore_thaw,
+	.restore = netiucv_pm_restore_thaw,
+};
+
 static struct device_driver netiucv_driver = {
 	.owner = THIS_MODULE,
 	.name = "netiucv",
 	.bus  = &iucv_bus,
+	.pm = &netiucv_pm_ops,
 };
 
 static int netiucv_callback_connreq(struct iucv_path *,
@@ -233,6 +254,7 @@
 	fsm_instance            *fsm;
         struct iucv_connection  *conn;
 	struct device           *dev;
+	int			 pm_state;
 };
 
 /**
@@ -1265,6 +1287,72 @@
 	return 0;
 }
 
+static int netiucv_pm_prepare(struct device *dev)
+{
+	IUCV_DBF_TEXT(trace, 3, __func__);
+	return 0;
+}
+
+static void netiucv_pm_complete(struct device *dev)
+{
+	IUCV_DBF_TEXT(trace, 3, __func__);
+	return;
+}
+
+/**
+ * netiucv_pm_freeze() - Freeze PM callback
+ * @dev:	netiucv device
+ *
+ * close open netiucv interfaces
+ */
+static int netiucv_pm_freeze(struct device *dev)
+{
+	struct netiucv_priv *priv = dev->driver_data;
+	struct net_device *ndev = NULL;
+	int rc = 0;
+
+	IUCV_DBF_TEXT(trace, 3, __func__);
+	if (priv && priv->conn)
+		ndev = priv->conn->netdev;
+	if (!ndev)
+		goto out;
+	netif_device_detach(ndev);
+	priv->pm_state = fsm_getstate(priv->fsm);
+	rc = netiucv_close(ndev);
+out:
+	return rc;
+}
+
+/**
+ * netiucv_pm_restore_thaw() - Thaw and restore PM callback
+ * @dev:	netiucv device
+ *
+ * re-open netiucv interfaces closed during freeze
+ */
+static int netiucv_pm_restore_thaw(struct device *dev)
+{
+	struct netiucv_priv *priv = dev->driver_data;
+	struct net_device *ndev = NULL;
+	int rc = 0;
+
+	IUCV_DBF_TEXT(trace, 3, __func__);
+	if (priv && priv->conn)
+		ndev = priv->conn->netdev;
+	if (!ndev)
+		goto out;
+	switch (priv->pm_state) {
+	case DEV_STATE_RUNNING:
+	case DEV_STATE_STARTWAIT:
+		rc = netiucv_open(ndev);
+		break;
+	default:
+		break;
+	}
+	netif_device_attach(ndev);
+out:
+	return rc;
+}
+
 /**
  * Start transmission of a packet.
  * Called from generic network device layer.
@@ -1732,7 +1820,6 @@
 	struct device *dev = kzalloc(sizeof(struct device), GFP_KERNEL);
 	int ret;
 
-
 	IUCV_DBF_TEXT(trace, 3, __func__);
 
 	if (dev) {
@@ -2101,6 +2188,7 @@
 		netiucv_unregister_device(dev);
 	}
 
+	device_unregister(netiucv_dev);
 	driver_unregister(&netiucv_driver);
 	iucv_unregister(&netiucv_handler, 1);
 	iucv_unregister_dbf_views();
@@ -2126,10 +2214,25 @@
 		IUCV_DBF_TEXT_(setup, 2, "ret %d from driver_register\n", rc);
 		goto out_iucv;
 	}
-
+	/* establish dummy device */
+	netiucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+	if (!netiucv_dev) {
+		rc = -ENOMEM;
+		goto out_driver;
+	}
+	dev_set_name(netiucv_dev, "netiucv");
+	netiucv_dev->bus = &iucv_bus;
+	netiucv_dev->parent = iucv_root;
+	netiucv_dev->release = (void (*)(struct device *))kfree;
+	netiucv_dev->driver = &netiucv_driver;
+	rc = device_register(netiucv_dev);
+	if (rc)
+		goto out_driver;
 	netiucv_banner();
 	return rc;
 
+out_driver:
+	driver_unregister(&netiucv_driver);
 out_iucv:
 	iucv_unregister(&netiucv_handler, 1);
 out_dbf:
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 74c49d9..d53621c 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1,7 +1,7 @@
 /*
  *  drivers/s390/net/qeth_core_main.c
  *
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
  *		 Frank Pavlic <fpavlic@de.ibm.com>,
  *		 Thomas Spatzier <tspat@de.ibm.com>,
@@ -4195,6 +4195,50 @@
 		card->discipline.ccwgdriver->shutdown(gdev);
 }
 
+static int qeth_core_prepare(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	if (card->discipline.ccwgdriver &&
+	    card->discipline.ccwgdriver->prepare)
+		return card->discipline.ccwgdriver->prepare(gdev);
+	return 0;
+}
+
+static void qeth_core_complete(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	if (card->discipline.ccwgdriver &&
+	    card->discipline.ccwgdriver->complete)
+		card->discipline.ccwgdriver->complete(gdev);
+}
+
+static int qeth_core_freeze(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	if (card->discipline.ccwgdriver &&
+	    card->discipline.ccwgdriver->freeze)
+		return card->discipline.ccwgdriver->freeze(gdev);
+	return 0;
+}
+
+static int qeth_core_thaw(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	if (card->discipline.ccwgdriver &&
+	    card->discipline.ccwgdriver->thaw)
+		return card->discipline.ccwgdriver->thaw(gdev);
+	return 0;
+}
+
+static int qeth_core_restore(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	if (card->discipline.ccwgdriver &&
+	    card->discipline.ccwgdriver->restore)
+		return card->discipline.ccwgdriver->restore(gdev);
+	return 0;
+}
+
 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
 	.owner = THIS_MODULE,
 	.name = "qeth",
@@ -4204,6 +4248,11 @@
 	.set_online = qeth_core_set_online,
 	.set_offline = qeth_core_set_offline,
 	.shutdown = qeth_core_shutdown,
+	.prepare = qeth_core_prepare,
+	.complete = qeth_core_complete,
+	.freeze = qeth_core_freeze,
+	.thaw = qeth_core_thaw,
+	.restore = qeth_core_restore,
 };
 
 static ssize_t
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index ecd3d06..81d7f26 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -1,7 +1,7 @@
 /*
  *  drivers/s390/net/qeth_l2_main.c
  *
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
  *		 Frank Pavlic <fpavlic@de.ibm.com>,
  *		 Thomas Spatzier <tspat@de.ibm.com>,
@@ -1141,12 +1141,62 @@
 	qeth_clear_qdio_buffers(card);
 }
 
+static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+
+	if (card->dev)
+		netif_device_detach(card->dev);
+	qeth_set_allowed_threads(card, 0, 1);
+	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
+	if (gdev->state == CCWGROUP_OFFLINE)
+		return 0;
+	if (card->state == CARD_STATE_UP) {
+		card->use_hard_stop = 1;
+		__qeth_l2_set_offline(card->gdev, 1);
+	} else
+		__qeth_l2_set_offline(card->gdev, 0);
+	return 0;
+}
+
+static int qeth_l2_pm_resume(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc = 0;
+
+	if (gdev->state == CCWGROUP_OFFLINE)
+		goto out;
+
+	if (card->state == CARD_STATE_RECOVER) {
+		rc = __qeth_l2_set_online(card->gdev, 1);
+		if (rc) {
+			if (card->dev) {
+				rtnl_lock();
+				dev_close(card->dev);
+				rtnl_unlock();
+			}
+		}
+	} else
+		rc = __qeth_l2_set_online(card->gdev, 0);
+out:
+	qeth_set_allowed_threads(card, 0xffffffff, 0);
+	if (card->dev)
+		netif_device_attach(card->dev);
+	if (rc)
+		dev_warn(&card->gdev->dev, "The qeth device driver "
+			"failed to recover an error on the device\n");
+	return rc;
+}
+
 struct ccwgroup_driver qeth_l2_ccwgroup_driver = {
 	.probe = qeth_l2_probe_device,
 	.remove = qeth_l2_remove_device,
 	.set_online = qeth_l2_set_online,
 	.set_offline = qeth_l2_set_offline,
 	.shutdown = qeth_l2_shutdown,
+	.freeze = qeth_l2_pm_suspend,
+	.thaw = qeth_l2_pm_resume,
+	.restore = qeth_l2_pm_resume,
 };
 EXPORT_SYMBOL_GPL(qeth_l2_ccwgroup_driver);
 
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 6f2386e..5487240 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -1,7 +1,7 @@
 /*
  *  drivers/s390/net/qeth_l3_main.c
  *
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
  *		 Frank Pavlic <fpavlic@de.ibm.com>,
  *		 Thomas Spatzier <tspat@de.ibm.com>,
@@ -3283,12 +3283,62 @@
 	qeth_clear_qdio_buffers(card);
 }
 
+static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+
+	if (card->dev)
+		netif_device_detach(card->dev);
+	qeth_set_allowed_threads(card, 0, 1);
+	wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
+	if (gdev->state == CCWGROUP_OFFLINE)
+		return 0;
+	if (card->state == CARD_STATE_UP) {
+		card->use_hard_stop = 1;
+		__qeth_l3_set_offline(card->gdev, 1);
+	} else
+		__qeth_l3_set_offline(card->gdev, 0);
+	return 0;
+}
+
+static int qeth_l3_pm_resume(struct ccwgroup_device *gdev)
+{
+	struct qeth_card *card = dev_get_drvdata(&gdev->dev);
+	int rc = 0;
+
+	if (gdev->state == CCWGROUP_OFFLINE)
+		goto out;
+
+	if (card->state == CARD_STATE_RECOVER) {
+		rc = __qeth_l3_set_online(card->gdev, 1);
+		if (rc) {
+			if (card->dev) {
+				rtnl_lock();
+				dev_close(card->dev);
+				rtnl_unlock();
+			}
+		}
+	} else
+		rc = __qeth_l3_set_online(card->gdev, 0);
+out:
+	qeth_set_allowed_threads(card, 0xffffffff, 0);
+	if (card->dev)
+		netif_device_attach(card->dev);
+	if (rc)
+		dev_warn(&card->gdev->dev, "The qeth device driver "
+			"failed to recover an error on the device\n");
+	return rc;
+}
+
 struct ccwgroup_driver qeth_l3_ccwgroup_driver = {
 	.probe = qeth_l3_probe_device,
 	.remove = qeth_l3_remove_device,
 	.set_online = qeth_l3_set_online,
 	.set_offline = qeth_l3_set_offline,
 	.shutdown = qeth_l3_shutdown,
+	.freeze = qeth_l3_pm_suspend,
+	.thaw = qeth_l3_pm_resume,
+	.restore = qeth_l3_pm_resume,
 };
 EXPORT_SYMBOL_GPL(qeth_l3_ccwgroup_driver);
 
diff --git a/drivers/s390/net/smsgiucv.c b/drivers/s390/net/smsgiucv.c
index 164e090..e76a320 100644
--- a/drivers/s390/net/smsgiucv.c
+++ b/drivers/s390/net/smsgiucv.c
@@ -1,7 +1,8 @@
 /*
  * IUCV special message driver
  *
- * Copyright 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright IBM Corp. 2003, 2009
+ *
  * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
  *
  * This program is free software; you can redistribute it and/or modify
@@ -40,6 +41,8 @@
 MODULE_DESCRIPTION ("Linux for S/390 IUCV special message driver");
 
 static struct iucv_path *smsg_path;
+/* dummy device used as trigger for PM functions */
+static struct device *smsg_dev;
 
 static DEFINE_SPINLOCK(smsg_list_lock);
 static LIST_HEAD(smsg_list);
@@ -132,14 +135,51 @@
 	kfree(cb);
 }
 
+static int smsg_pm_freeze(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "smsg_pm_freeze\n");
+#endif
+	if (smsg_path)
+		iucv_path_sever(smsg_path, NULL);
+	return 0;
+}
+
+static int smsg_pm_restore_thaw(struct device *dev)
+{
+	int rc;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "smsg_pm_restore_thaw\n");
+#endif
+	if (smsg_path) {
+		memset(smsg_path, 0, sizeof(*smsg_path));
+		smsg_path->msglim = 255;
+		smsg_path->flags = 0;
+		rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG    ",
+				       NULL, NULL, NULL);
+		printk(KERN_ERR "iucv_path_connect returned with rc %i\n", rc);
+	}
+	return 0;
+}
+
+static struct dev_pm_ops smsg_pm_ops = {
+	.freeze = smsg_pm_freeze,
+	.thaw = smsg_pm_restore_thaw,
+	.restore = smsg_pm_restore_thaw,
+};
+
 static struct device_driver smsg_driver = {
+	.owner = THIS_MODULE,
 	.name = "SMSGIUCV",
 	.bus  = &iucv_bus,
+	.pm = &smsg_pm_ops,
 };
 
 static void __exit smsg_exit(void)
 {
 	cpcmd("SET SMSG IUCV", NULL, 0, NULL);
+	device_unregister(smsg_dev);
 	iucv_unregister(&smsg_handler, 1);
 	driver_unregister(&smsg_driver);
 }
@@ -166,12 +206,29 @@
 	rc = iucv_path_connect(smsg_path, &smsg_handler, "*MSG    ",
 			       NULL, NULL, NULL);
 	if (rc)
-		goto out_free;
+		goto out_free_path;
+	smsg_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+	if (!smsg_dev) {
+		rc = -ENOMEM;
+		goto out_free_path;
+	}
+	dev_set_name(smsg_dev, "smsg_iucv");
+	smsg_dev->bus = &iucv_bus;
+	smsg_dev->parent = iucv_root;
+	smsg_dev->release = (void (*)(struct device *))kfree;
+	smsg_dev->driver = &smsg_driver;
+	rc = device_register(smsg_dev);
+	if (rc)
+		goto out_free_dev;
+
 	cpcmd("SET SMSG IUCV", NULL, 0, NULL);
 	return 0;
 
-out_free:
+out_free_dev:
+	kfree(smsg_dev);
+out_free_path:
 	iucv_path_free(smsg_path);
+	smsg_path = NULL;
 out_register:
 	iucv_unregister(&smsg_handler, 1);
 out_driver:
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index b2fe5cd..d9da5c4 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -13,6 +13,36 @@
 
 #define ZFCP_MODEL_PRIV 0x4
 
+static int zfcp_ccw_suspend(struct ccw_device *cdev)
+
+{
+	struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
+
+	down(&zfcp_data.config_sema);
+
+	zfcp_erp_adapter_shutdown(adapter, 0, "ccsusp1", NULL);
+	zfcp_erp_wait(adapter);
+
+	up(&zfcp_data.config_sema);
+
+	return 0;
+}
+
+static int zfcp_ccw_activate(struct ccw_device *cdev)
+
+{
+	struct zfcp_adapter *adapter = dev_get_drvdata(&cdev->dev);
+
+	zfcp_erp_modify_adapter_status(adapter, "ccresu1", NULL,
+				       ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
+	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
+				"ccresu2", NULL);
+	zfcp_erp_wait(adapter);
+	flush_work(&adapter->scan_work);
+
+	return 0;
+}
+
 static struct ccw_device_id zfcp_ccw_device_id[] = {
 	{ CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, 0x3) },
 	{ CCW_DEVICE_DEVTYPE(0x1731, 0x3, 0x1732, ZFCP_MODEL_PRIV) },
@@ -227,6 +257,9 @@
 	.set_offline = zfcp_ccw_set_offline,
 	.notify      = zfcp_ccw_notify,
 	.shutdown    = zfcp_ccw_shutdown,
+	.freeze      = zfcp_ccw_suspend,
+	.thaw	     = zfcp_ccw_activate,
+	.restore     = zfcp_ccw_activate,
 };
 
 /**
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 124f660..75ac19b 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -303,7 +303,7 @@
 				struct device_node *dp)
 {
 	DATA *data = file->private_data;
-	struct openpromio *opp;
+	struct openpromio *opp = NULL;
 	int bufsize, error = 0;
 	static int cnt;
 	void __user *argp = (void __user *)arg;
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index b3497d7..338b15c 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -1104,11 +1104,13 @@
 	/* update the per-port timeout */
 	uart_update_timeout(port, termios->c_cflag, baud);
 
-	/* save/disable interrupts and drain transmitter */
+	/*
+	 * save/disable interrupts. The tty layer will ensure that the
+	 * transmitter is empty if requested by the caller, so there's
+	 * no need to wait for it here.
+	 */
 	imr = UART_GET_IMR(port);
 	UART_PUT_IDR(port, -1);
-	while (!(UART_GET_CSR(port) & ATMEL_US_TXEMPTY))
-		cpu_relax();
 
 	/* disable receiver and transmitter */
 	UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 285b414..5d7b58f 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -924,11 +924,13 @@
 	rational_best_approximation(16 * div * baud, sport->port.uartclk,
 		1 << 16, 1 << 16, &num, &denom);
 
-	tdiv64 = sport->port.uartclk;
-	tdiv64 *= num;
-	do_div(tdiv64, denom * 16 * div);
-	tty_encode_baud_rate(sport->port.info->port.tty,
-		(speed_t)tdiv64, (speed_t)tdiv64);
+	if (port->info && port->info->port.tty) {
+		tdiv64 = sport->port.uartclk;
+		tdiv64 *= num;
+		do_div(tdiv64, denom * 16 * div);
+		tty_encode_baud_rate(sport->port.info->port.tty,
+				(speed_t)tdiv64, (speed_t)tdiv64);
+	}
 
 	num -= 1;
 	denom -= 1;
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index f014cc2..011c5bd 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -803,7 +803,7 @@
 				drv_data->rx, drv_data->len_in_bytes);
 
 			/* invalidate caches, if needed */
-			if (bfin_addr_dcachable((unsigned long) drv_data->rx))
+			if (bfin_addr_dcacheable((unsigned long) drv_data->rx))
 				invalidate_dcache_range((unsigned long) drv_data->rx,
 							(unsigned long) (drv_data->rx +
 							drv_data->len_in_bytes));
@@ -816,7 +816,7 @@
 			dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n");
 
 			/* flush caches, if needed */
-			if (bfin_addr_dcachable((unsigned long) drv_data->tx))
+			if (bfin_addr_dcacheable((unsigned long) drv_data->tx))
 				flush_dcache_range((unsigned long) drv_data->tx,
 						(unsigned long) (drv_data->tx +
 						drv_data->len_in_bytes));
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 1ba9f9a..bb870b8 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -162,7 +162,7 @@
 	dev_dbg(&dev->core, "%s:%d: virq            %lu\n", __func__, __LINE__,
 		(unsigned long)virq);
 
-	ps3_system_bus_set_driver_data(dev, hcd);
+	ps3_system_bus_set_drvdata(dev, hcd);
 
 	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
 
@@ -195,8 +195,7 @@
 static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
 {
 	unsigned int tmp;
-	struct usb_hcd *hcd =
-		(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
+	struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
 
 	BUG_ON(!hcd);
 
@@ -208,7 +207,7 @@
 	ehci_shutdown(hcd);
 	usb_remove_hcd(hcd);
 
-	ps3_system_bus_set_driver_data(dev, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 
 	BUG_ON(!hcd->regs);
 	iounmap(hcd->regs);
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 3d19103..1d56259 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -162,7 +162,7 @@
 	dev_dbg(&dev->core, "%s:%d: virq            %lu\n", __func__, __LINE__,
 		(unsigned long)virq);
 
-	ps3_system_bus_set_driver_data(dev, hcd);
+	ps3_system_bus_set_drvdata(dev, hcd);
 
 	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
 
@@ -195,8 +195,7 @@
 static int ps3_ohci_remove(struct ps3_system_bus_device *dev)
 {
 	unsigned int tmp;
-	struct usb_hcd *hcd =
-		(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
+	struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
 
 	BUG_ON(!hcd);
 
@@ -208,7 +207,7 @@
 	ohci_shutdown(hcd);
 	usb_remove_hcd(hcd);
 
-	ps3_system_bus_set_driver_data(dev, NULL);
+	ps3_system_bus_set_drvdata(dev, NULL);
 
 	BUG_ON(!hcd->regs);
 	iounmap(hcd->regs);
diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index 1e35ba6..b0b147c 100644
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -111,9 +111,7 @@
 	u32			flags;
 #define BW2_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 };
 
 /**
@@ -167,17 +165,15 @@
 	struct bw2_par *par = (struct bw2_par *)info->par;
 
 	return sbusfb_mmap_helper(bw2_mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io,
 				  vma);
 }
 
 static int bw2_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
-	struct bw2_par *par = (struct bw2_par *) info->par;
-
 	return sbusfb_ioctl_helper(cmd, arg, info,
-				   FBTYPE_SUN2BW, 1, par->fbsize);
+				   FBTYPE_SUN2BW, 1, info->fix.smem_len);
 }
 
 /*
@@ -294,7 +290,7 @@
 
 	spin_lock_init(&par->lock);
 
-	par->physbase = op->resource[0].start;
+	info->fix.smem_start = op->resource[0].start;
 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
 
 	sbusfb_fill_var(&info->var, dp, 1);
@@ -317,13 +313,13 @@
 			goto out_unmap_regs;
 	}
 
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	info->flags = FBINFO_DEFAULT;
 	info->fbops = &bw2_ops;
 
 	info->screen_base = of_ioremap(&op->resource[0], 0,
-				       par->fbsize, "bw2 ram");
+				       info->fix.smem_len, "bw2 ram");
 	if (!info->screen_base)
 		goto out_unmap_regs;
 
@@ -338,12 +334,12 @@
 	dev_set_drvdata(&op->dev, info);
 
 	printk(KERN_INFO "%s: bwtwo at %lx:%lx\n",
-	       dp->full_name, par->which_io, par->physbase);
+	       dp->full_name, par->which_io, info->fix.smem_start);
 
 	return 0;
 
 out_unmap_screen:
-	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);
 
 out_unmap_regs:
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));
@@ -363,7 +359,7 @@
 	unregister_framebuffer(info);
 
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));
-	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);
 
 	framebuffer_release(info);
 
diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c
index a2d1882..fe45a3b 100644
--- a/drivers/video/cg14.c
+++ b/drivers/video/cg14.c
@@ -196,9 +196,7 @@
 	u32			flags;
 #define CG14_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		iospace;
-	unsigned long		fbsize;
 
 	struct sbus_mmap_map	mmap_map[CG14_MMAP_ENTRIES];
 
@@ -271,7 +269,7 @@
 	struct cg14_par *par = (struct cg14_par *) info->par;
 
 	return sbusfb_mmap_helper(par->mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->iospace, vma);
 }
 
@@ -343,7 +341,8 @@
 
 	default:
 		ret = sbusfb_ioctl_helper(cmd, arg, info,
-					  FBTYPE_MDICOLOR, 8, par->fbsize);
+					  FBTYPE_MDICOLOR, 8,
+					  info->fix.smem_len);
 		break;
 	};
 
@@ -462,7 +461,7 @@
 			   par->cursor, sizeof(struct cg14_cursor));
 	if (info->screen_base)
 		of_iounmap(&op->resource[1],
-			   info->screen_base, par->fbsize);
+			   info->screen_base, info->fix.smem_len);
 }
 
 static int __devinit cg14_probe(struct of_device *op, const struct of_device_id *match)
@@ -488,14 +487,14 @@
 
 	linebytes = of_getintprop_default(dp, "linebytes",
 					  info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	if (!strcmp(dp->parent->name, "sbus") ||
 	    !strcmp(dp->parent->name, "sbi")) {
-		par->physbase = op->resource[0].start;
+		info->fix.smem_start = op->resource[0].start;
 		par->iospace = op->resource[0].flags & IORESOURCE_BITS;
 	} else {
-		par->physbase = op->resource[1].start;
+		info->fix.smem_start = op->resource[1].start;
 		par->iospace = op->resource[0].flags & IORESOURCE_BITS;
 	}
 
@@ -507,7 +506,7 @@
 				 sizeof(struct cg14_cursor), "cg14 cursor");
 
 	info->screen_base = of_ioremap(&op->resource[1], 0,
-				       par->fbsize, "cg14 ram");
+				       info->fix.smem_len, "cg14 ram");
 
 	if (!par->regs || !par->clut || !par->cursor || !info->screen_base)
 		goto out_unmap_regs;
@@ -557,7 +556,7 @@
 
 	printk(KERN_INFO "%s: cgfourteen at %lx:%lx, %dMB\n",
 	       dp->full_name,
-	       par->iospace, par->physbase,
+	       par->iospace, info->fix.smem_start,
 	       par->ramsize >> 20);
 
 	return 0;
diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c
index 99f87fb..b2319fa 100644
--- a/drivers/video/cg3.c
+++ b/drivers/video/cg3.c
@@ -118,9 +118,7 @@
 #define CG3_FLAG_BLANKED	0x00000001
 #define CG3_FLAG_RDI		0x00000002
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 };
 
 /**
@@ -231,17 +229,15 @@
 	struct cg3_par *par = (struct cg3_par *)info->par;
 
 	return sbusfb_mmap_helper(cg3_mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io,
 				  vma);
 }
 
 static int cg3_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
-	struct cg3_par *par = (struct cg3_par *) info->par;
-
 	return sbusfb_ioctl_helper(cmd, arg, info,
-				   FBTYPE_SUN3COLOR, 8, par->fbsize);
+				   FBTYPE_SUN3COLOR, 8, info->fix.smem_len);
 }
 
 /*
@@ -368,7 +364,7 @@
 
 	spin_lock_init(&par->lock);
 
-	par->physbase = op->resource[0].start;
+	info->fix.smem_start = op->resource[0].start;
 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
 
 	sbusfb_fill_var(&info->var, dp, 8);
@@ -382,7 +378,7 @@
 
 	linebytes = of_getintprop_default(dp, "linebytes",
 					  info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	par->regs = of_ioremap(&op->resource[0], CG3_REGS_OFFSET,
 			       sizeof(struct cg3_regs), "cg3 regs");
@@ -392,7 +388,7 @@
 	info->flags = FBINFO_DEFAULT;
 	info->fbops = &cg3_ops;
 	info->screen_base = of_ioremap(&op->resource[0], CG3_RAM_OFFSET,
-				       par->fbsize, "cg3 ram");
+				       info->fix.smem_len, "cg3 ram");
 	if (!info->screen_base)
 		goto out_unmap_regs;
 
@@ -418,7 +414,7 @@
 	dev_set_drvdata(&op->dev, info);
 
 	printk(KERN_INFO "%s: cg3 at %lx:%lx\n",
-	       dp->full_name, par->which_io, par->physbase);
+	       dp->full_name, par->which_io, info->fix.smem_start);
 
 	return 0;
 
@@ -426,7 +422,7 @@
 	fb_dealloc_cmap(&info->cmap);
 
 out_unmap_screen:
-	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);
 
 out_unmap_regs:
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct cg3_regs));
@@ -447,7 +443,7 @@
 	fb_dealloc_cmap(&info->cmap);
 
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct cg3_regs));
-	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);
 
 	framebuffer_release(info);
 
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 940ec04..0d47c60 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -263,9 +263,7 @@
 	u32			flags;
 #define CG6_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 };
 
 static int cg6_sync(struct fb_info *info)
@@ -596,16 +594,14 @@
 	struct cg6_par *par = (struct cg6_par *)info->par;
 
 	return sbusfb_mmap_helper(cg6_mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io, vma);
 }
 
 static int cg6_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
-	struct cg6_par *par = (struct cg6_par *)info->par;
-
 	return sbusfb_ioctl_helper(cmd, arg, info,
-				   FBTYPE_SUNFAST_COLOR, 8, par->fbsize);
+				   FBTYPE_SUNFAST_COLOR, 8, info->fix.smem_len);
 }
 
 /*
@@ -631,12 +627,12 @@
 		break;
 	};
 	if (((conf >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK) >= 11) {
-		if (par->fbsize <= 0x100000)
+		if (info->fix.smem_len <= 0x100000)
 			cg6_card_name = "TGX";
 		else
 			cg6_card_name = "TGX+";
 	} else {
-		if (par->fbsize <= 0x100000)
+		if (info->fix.smem_len <= 0x100000)
 			cg6_card_name = "GX";
 		else
 			cg6_card_name = "GX+";
@@ -738,7 +734,8 @@
 		of_iounmap(&op->resource[0], par->fhc, sizeof(u32));
 
 	if (info->screen_base)
-		of_iounmap(&op->resource[0], info->screen_base, par->fbsize);
+		of_iounmap(&op->resource[0], info->screen_base,
+			   info->fix.smem_len);
 }
 
 static int __devinit cg6_probe(struct of_device *op,
@@ -759,7 +756,7 @@
 
 	spin_lock_init(&par->lock);
 
-	par->physbase = op->resource[0].start;
+	info->fix.smem_start = op->resource[0].start;
 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
 
 	sbusfb_fill_var(&info->var, dp, 8);
@@ -769,11 +766,11 @@
 
 	linebytes = of_getintprop_default(dp, "linebytes",
 					  info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	dblbuf = of_getintprop_default(dp, "dblbuf", 0);
 	if (dblbuf)
-		par->fbsize *= 4;
+		info->fix.smem_len *= 4;
 
 	par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,
 				4096, "cgsix fbc");
@@ -792,7 +789,7 @@
 	info->fbops = &cg6_ops;
 
 	info->screen_base = of_ioremap(&op->resource[0], CG6_RAM_OFFSET,
-					par->fbsize, "cgsix ram");
+					info->fix.smem_len, "cgsix ram");
 	if (!par->fbc || !par->tec || !par->thc ||
 	    !par->bt || !par->fhc || !info->screen_base)
 		goto out_unmap_regs;
@@ -817,7 +814,7 @@
 
 	printk(KERN_INFO "%s: CGsix [%s] at %lx:%lx\n",
 	       dp->full_name, info->fix.id,
-	       par->which_io, par->physbase);
+	       par->which_io, info->fix.smem_start);
 
 	return 0;
 
diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index 7c7e8c2..e145e2d 100644
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -191,9 +191,7 @@
 	u32			flags;
 #define LEO_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 };
 
 static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
@@ -420,16 +418,14 @@
 	struct leo_par *par = (struct leo_par *)info->par;
 
 	return sbusfb_mmap_helper(leo_mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io, vma);
 }
 
 static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
-	struct leo_par *par = (struct leo_par *) info->par;
-
 	return sbusfb_ioctl_helper(cmd, arg, info,
-				   FBTYPE_SUNLEO, 32, par->fbsize);
+				   FBTYPE_SUNLEO, 32, info->fix.smem_len);
 }
 
 /*
@@ -569,7 +565,7 @@
 
 	spin_lock_init(&par->lock);
 
-	par->physbase = op->resource[0].start;
+	info->fix.smem_start = op->resource[0].start;
 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
 
 	sbusfb_fill_var(&info->var, dp, 32);
@@ -577,7 +573,7 @@
 
 	linebytes = of_getintprop_default(dp, "linebytes",
 					  info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	par->lc_ss0_usr =
 		of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR,
@@ -627,7 +623,7 @@
 
 	printk(KERN_INFO "%s: leo at %lx:%lx\n",
 	       dp->full_name,
-	       par->which_io, par->physbase);
+	       par->which_io, info->fix.smem_start);
 
 	return 0;
 
diff --git a/drivers/video/p9100.c b/drivers/video/p9100.c
index 7000f2c..7fa4ab01 100644
--- a/drivers/video/p9100.c
+++ b/drivers/video/p9100.c
@@ -134,9 +134,7 @@
 	u32			flags;
 #define P9100_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 };
 
 /**
@@ -224,18 +222,16 @@
 	struct p9100_par *par = (struct p9100_par *)info->par;
 
 	return sbusfb_mmap_helper(p9100_mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io, vma);
 }
 
 static int p9100_ioctl(struct fb_info *info, unsigned int cmd,
 		       unsigned long arg)
 {
-	struct p9100_par *par = (struct p9100_par *) info->par;
-
 	/* Make it look like a cg3. */
 	return sbusfb_ioctl_helper(cmd, arg, info,
-				   FBTYPE_SUN3COLOR, 8, par->fbsize);
+				   FBTYPE_SUN3COLOR, 8, info->fix.smem_len);
 }
 
 /*
@@ -271,7 +267,7 @@
 	spin_lock_init(&par->lock);
 
 	/* This is the framebuffer and the only resource apps can mmap.  */
-	par->physbase = op->resource[2].start;
+	info->fix.smem_start = op->resource[2].start;
 	par->which_io = op->resource[2].flags & IORESOURCE_BITS;
 
 	sbusfb_fill_var(&info->var, dp, 8);
@@ -280,7 +276,7 @@
 	info->var.blue.length = 8;
 
 	linebytes = of_getintprop_default(dp, "linebytes", info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	par->regs = of_ioremap(&op->resource[0], 0,
 			       sizeof(struct p9100_regs), "p9100 regs");
@@ -290,7 +286,7 @@
 	info->flags = FBINFO_DEFAULT;
 	info->fbops = &p9100_ops;
 	info->screen_base = of_ioremap(&op->resource[2], 0,
-				       par->fbsize, "p9100 ram");
+				       info->fix.smem_len, "p9100 ram");
 	if (!info->screen_base)
 		goto out_unmap_regs;
 
@@ -311,7 +307,7 @@
 
 	printk(KERN_INFO "%s: p9100 at %lx:%lx\n",
 	       dp->full_name,
-	       par->which_io, par->physbase);
+	       par->which_io, info->fix.smem_start);
 
 	return 0;
 
@@ -319,7 +315,7 @@
 	fb_dealloc_cmap(&info->cmap);
 
 out_unmap_screen:
-	of_iounmap(&op->resource[2], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[2], info->screen_base, info->fix.smem_len);
 
 out_unmap_regs:
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct p9100_regs));
@@ -340,7 +336,7 @@
 	fb_dealloc_cmap(&info->cmap);
 
 	of_iounmap(&op->resource[0], par->regs, sizeof(struct p9100_regs));
-	of_iounmap(&op->resource[2], info->screen_base, par->fbsize);
+	of_iounmap(&op->resource[2], info->screen_base, info->fix.smem_len);
 
 	framebuffer_release(info);
 
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index e00c1df..c0af638 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -32,25 +32,16 @@
 #include <linux/init.h>
 
 #include <asm/abs_addr.h>
+#include <asm/iommu.h>
 #include <asm/lv1call.h>
 #include <asm/ps3av.h>
 #include <asm/ps3fb.h>
 #include <asm/ps3.h>
+#include <asm/ps3gpu.h>
 
 
 #define DEVICE_NAME		"ps3fb"
 
-#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC	0x101
-#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP	0x102
-#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP	0x600
-#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT		0x601
-#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC	0x602
-
-#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION	(1ULL << 32)
-
-#define L1GPU_DISPLAY_SYNC_HSYNC		1
-#define L1GPU_DISPLAY_SYNC_VSYNC		2
-
 #define GPU_CMD_BUF_SIZE			(2 * 1024 * 1024)
 #define GPU_FB_START				(64 * 1024)
 #define GPU_IOIF				(0x0d000000UL)
@@ -462,33 +453,27 @@
 	src_offset += GPU_FB_START;
 
 	mutex_lock(&ps3_gpu_mutex);
-	status = lv1_gpu_context_attribute(ps3fb.context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
-					   dst_offset, GPU_IOIF + src_offset,
-					   L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
-					   (width << 16) | height,
-					   line_length);
+	status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
+				 GPU_IOIF + src_offset,
+				 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
+				 (width << 16) | height,
+				 line_length);
 	mutex_unlock(&ps3_gpu_mutex);
 
 	if (status)
-		dev_err(dev,
-			"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
-			__func__, status);
+		dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
+			status);
 #ifdef HEAD_A
-	status = lv1_gpu_context_attribute(ps3fb.context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
-					   0, frame_offset, 0, 0);
+	status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
 	if (status)
-		dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
-			__func__, status);
+		dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
+			status);
 #endif
 #ifdef HEAD_B
-	status = lv1_gpu_context_attribute(ps3fb.context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
-					   1, frame_offset, 0, 0);
+	status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
 	if (status)
-		dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
-			__func__, status);
+		dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
+			status);
 #endif
 }
 
@@ -956,73 +941,6 @@
 }
 
 
-static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
-				struct device *dev)
-{
-	int error;
-
-	dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
-	dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
-	dev_dbg(dev,
-		"version_gpu: %x memory_size: %x ch: %x core_freq: %d "
-		"mem_freq:%d\n",
-		dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
-		dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
-
-	if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
-		dev_err(dev, "%s: version_driver err:%x\n", __func__,
-			dinfo->version_driver);
-		return -EINVAL;
-	}
-
-	error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
-				   &ps3fb.irq_no);
-	if (error) {
-		dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
-		return error;
-	}
-
-	error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
-			    DEVICE_NAME, dev);
-	if (error) {
-		dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
-		ps3_irq_plug_destroy(ps3fb.irq_no);
-		return error;
-	}
-
-	dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
-			  (1 << GPU_INTR_STATUS_FLIP_1);
-	return 0;
-}
-
-static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
-{
-	int status;
-
-	status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
-				       xdr_lpar, ps3fb_videomemory.size, 0);
-	if (status) {
-		dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
-			__func__, status);
-		return -ENXIO;
-	}
-	dev_dbg(dev, "video:%p ioif:%lx lpar:%llx size:%lx\n",
-		ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
-		ps3fb_videomemory.size);
-
-	status = lv1_gpu_context_attribute(ps3fb.context_handle,
-					   L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
-					   xdr_lpar, GPU_CMD_BUF_SIZE,
-					   GPU_IOIF, 0);
-	if (status) {
-		dev_err(dev,
-			"%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
-			__func__, status);
-		return -ENXIO;
-	}
-	return 0;
-}
-
 static struct fb_ops ps3fb_ops = {
 	.fb_open	= ps3fb_open,
 	.fb_release	= ps3fb_release,
@@ -1048,49 +966,18 @@
 	.accel =	FB_ACCEL_NONE,
 };
 
-static int ps3fb_set_sync(struct device *dev)
-{
-	int status;
-
-#ifdef HEAD_A
-	status = lv1_gpu_context_attribute(0x0,
-					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
-					   0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
-	if (status) {
-		dev_err(dev,
-			"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
-			"%d\n",
-			__func__, status);
-		return -1;
-	}
-#endif
-#ifdef HEAD_B
-	status = lv1_gpu_context_attribute(0x0,
-					   L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
-					   1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
-
-	if (status) {
-		dev_err(dev,
-			"%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
-			"%d\n",
-			__func__, status);
-		return -1;
-	}
-#endif
-	return 0;
-}
-
 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 {
 	struct fb_info *info;
 	struct ps3fb_par *par;
-	int retval = -ENOMEM;
+	int retval;
 	u64 ddr_lpar = 0;
 	u64 lpar_dma_control = 0;
 	u64 lpar_driver_info = 0;
 	u64 lpar_reports = 0;
 	u64 lpar_reports_size = 0;
 	u64 xdr_lpar;
+	struct gpu_driver_info *dinfo;
 	void *fb_start;
 	int status;
 	struct task_struct *task;
@@ -1101,8 +988,8 @@
 		return -ENOMEM;
 	}
 
-	status = ps3_open_hv_device(dev);
-	if (status) {
+	retval = ps3_open_hv_device(dev);
+	if (retval) {
 		dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
 			__func__);
 		goto err;
@@ -1116,7 +1003,24 @@
 	atomic_set(&ps3fb.ext_flip, 0);	/* for flip with vsync */
 	init_waitqueue_head(&ps3fb.wait_vsync);
 
-	ps3fb_set_sync(&dev->core);
+#ifdef HEAD_A
+	status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
+	if (status) {
+		dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
+			__func__, status);
+		retval = -ENODEV;
+		goto err_close_device;
+	}
+#endif
+#ifdef HEAD_B
+	status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
+	if (status) {
+		dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
+			__func__, status);
+		retval = -ENODEV;
+		goto err_close_device;
+	}
+#endif
 
 	max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
 	if (ps3fb_videomemory.size > max_ps3fb_size) {
@@ -1131,7 +1035,7 @@
 	if (status) {
 		dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
 			__func__, status);
-		goto err;
+		goto err_close_device;
 	}
 	dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
 
@@ -1141,33 +1045,85 @@
 					  &lpar_reports, &lpar_reports_size);
 	if (status) {
 		dev_err(&dev->core,
-			"%s: lv1_gpu_context_attribute failed: %d\n", __func__,
+			"%s: lv1_gpu_context_allocate failed: %d\n", __func__,
 			status);
 		goto err_gpu_memory_free;
 	}
 
 	/* vsync interrupt */
-	ps3fb.dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
-	if (!ps3fb.dinfo) {
+	dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
+	if (!dinfo) {
 		dev_err(&dev->core, "%s: ioremap failed\n", __func__);
 		goto err_gpu_context_free;
 	}
 
-	retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
-	if (retval)
+	ps3fb.dinfo = dinfo;
+	dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
+	dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
+	dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
+		"core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
+		dinfo->memory_size, dinfo->hardware_channel,
+		dinfo->nvcore_frequency/1000000,
+		dinfo->memory_frequency/1000000);
+
+	if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
+		dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
+			dinfo->version_driver);
+		retval = -EINVAL;
 		goto err_iounmap_dinfo;
+	}
+
+	retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
+				    &ps3fb.irq_no);
+	if (retval) {
+		dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
+			retval);
+		goto err_iounmap_dinfo;
+	}
+
+	retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
+			     IRQF_DISABLED, DEVICE_NAME, &dev->core);
+	if (retval) {
+		dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
+			retval);
+		goto err_destroy_plug;
+	}
+
+	dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
+			  (1 << GPU_INTR_STATUS_FLIP_1);
 
 	/* Clear memory to prevent kernel info leakage into userspace */
 	memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
 
 	xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
-	retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
-	if (retval)
+
+	status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
+				       xdr_lpar, ps3fb_videomemory.size,
+				       CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
+				       CBE_IOPTE_M);
+	if (status) {
+		dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
+			__func__, status);
+		retval =  -ENXIO;
 		goto err_free_irq;
+	}
+
+	dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
+		ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
+		ps3fb_videomemory.size);
+
+	status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
+				  GPU_CMD_BUF_SIZE, GPU_IOIF);
+	if (status) {
+		dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
+			__func__, status);
+		retval = -ENXIO;
+		goto err_context_unmap;
+	}
 
 	info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
 	if (!info)
-		goto err_free_irq;
+		goto err_context_fb_close;
 
 	par = info->par;
 	par->mode_id = ~ps3fb_mode;	/* != ps3fb_mode, to trigger change */
@@ -1210,7 +1166,7 @@
 	if (retval < 0)
 		goto err_fb_dealloc;
 
-	dev->core.driver_data = info;
+	ps3_system_bus_set_drvdata(dev, info);
 
 	dev_info(info->device, "%s %s, using %u KiB of video memory\n",
 		 dev_driver_string(info->dev), dev_name(info->dev),
@@ -1232,8 +1188,14 @@
 	fb_dealloc_cmap(&info->cmap);
 err_framebuffer_release:
 	framebuffer_release(info);
+err_context_fb_close:
+	lv1_gpu_fb_close(ps3fb.context_handle);
+err_context_unmap:
+	lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
+			      ps3fb_videomemory.size, CBE_IOPTE_M);
 err_free_irq:
 	free_irq(ps3fb.irq_no, &dev->core);
+err_destroy_plug:
 	ps3_irq_plug_destroy(ps3fb.irq_no);
 err_iounmap_dinfo:
 	iounmap((u8 __force __iomem *)ps3fb.dinfo);
@@ -1241,14 +1203,16 @@
 	lv1_gpu_context_free(ps3fb.context_handle);
 err_gpu_memory_free:
 	lv1_gpu_memory_free(ps3fb.memory_handle);
+err_close_device:
+	ps3_close_hv_device(dev);
 err:
 	return retval;
 }
 
 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
 {
-	int status;
-	struct fb_info *info = dev->core.driver_data;
+	struct fb_info *info = ps3_system_bus_get_drvdata(dev);
+	u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
 
 	dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
 
@@ -1268,20 +1232,14 @@
 		unregister_framebuffer(info);
 		fb_dealloc_cmap(&info->cmap);
 		framebuffer_release(info);
-		info = dev->core.driver_data = NULL;
+		ps3_system_bus_set_drvdata(dev, NULL);
 	}
 	iounmap((u8 __force __iomem *)ps3fb.dinfo);
-
-	status = lv1_gpu_context_free(ps3fb.context_handle);
-	if (status)
-		dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
-			status);
-
-	status = lv1_gpu_memory_free(ps3fb.memory_handle);
-	if (status)
-		dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
-			status);
-
+	lv1_gpu_fb_close(ps3fb.context_handle);
+	lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
+			      ps3fb_videomemory.size, CBE_IOPTE_M);
+	lv1_gpu_context_free(ps3fb.context_handle);
+	lv1_gpu_memory_free(ps3fb.memory_handle);
 	ps3_close_hv_device(dev);
 	dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
 
diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c
index 89f231d..ff43c88 100644
--- a/drivers/video/tdfxfb.c
+++ b/drivers/video/tdfxfb.c
@@ -1315,7 +1315,6 @@
 
 	strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name));
 	chan->adapter.owner		= THIS_MODULE;
-	chan->adapter.class		= I2C_CLASS_TV_ANALOG;
 	chan->adapter.algo_data		= &chan->algo;
 	chan->adapter.dev.parent	= dev;
 	chan->algo.setsda		= tdfxfb_i2c_setsda;
diff --git a/fs/bio.c b/fs/bio.c
index 5f80848..24c91404 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -25,7 +25,6 @@
 #include <linux/module.h>
 #include <linux/mempool.h>
 #include <linux/workqueue.h>
-#include <linux/blktrace_api.h>
 #include <scsi/sg.h>		/* for struct sg_iovec */
 
 #include <trace/events/block.h>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 0d50d49..d28d29c 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -42,6 +42,8 @@
 static struct extent_io_ops btree_extent_io_ops;
 static void end_workqueue_fn(struct btrfs_work *work);
 
+static atomic_t btrfs_bdi_num = ATOMIC_INIT(0);
+
 /*
  * end_io_wq structs are used to do processing in task context when an IO is
  * complete.  This is used during reads to verify checksums, and it is used
@@ -1342,12 +1344,25 @@
 	free_extent_map(em);
 }
 
+/*
+ * If this fails, caller must call bdi_destroy() to get rid of the
+ * bdi again.
+ */
 static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi)
 {
-	bdi_init(bdi);
+	int err;
+
+	bdi->capabilities = BDI_CAP_MAP_COPY;
+	err = bdi_init(bdi);
+	if (err)
+		return err;
+
+	err = bdi_register(bdi, NULL, "btrfs-%d",
+				atomic_inc_return(&btrfs_bdi_num));
+	if (err)
+		return err;
+
 	bdi->ra_pages	= default_backing_dev_info.ra_pages;
-	bdi->state		= 0;
-	bdi->capabilities	= default_backing_dev_info.capabilities;
 	bdi->unplug_io_fn	= btrfs_unplug_io_fn;
 	bdi->unplug_io_data	= info;
 	bdi->congested_fn	= btrfs_congested_fn;
@@ -1569,7 +1584,8 @@
 	fs_info->sb = sb;
 	fs_info->max_extent = (u64)-1;
 	fs_info->max_inline = 8192 * 1024;
-	setup_bdi(fs_info, &fs_info->bdi);
+	if (setup_bdi(fs_info, &fs_info->bdi))
+		goto fail_bdi;
 	fs_info->btree_inode = new_inode(sb);
 	fs_info->btree_inode->i_ino = 1;
 	fs_info->btree_inode->i_nlink = 1;
@@ -1946,8 +1962,8 @@
 
 	btrfs_close_devices(fs_info->fs_devices);
 	btrfs_mapping_tree_free(&fs_info->mapping_tree);
+fail_bdi:
 	bdi_destroy(&fs_info->bdi);
-
 fail:
 	kfree(extent_root);
 	kfree(tree_root);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 2e177d7..4e83457 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -543,13 +543,13 @@
 			btrfs_free_log(trans, root);
 			btrfs_update_reloc_root(trans, root);
 
-			if (root->commit_root == root->node)
-				continue;
+			if (root->commit_root != root->node) {
+				free_extent_buffer(root->commit_root);
+				root->commit_root = btrfs_root_node(root);
+				btrfs_set_root_node(&root->root_item,
+						    root->node);
+			}
 
-			free_extent_buffer(root->commit_root);
-			root->commit_root = btrfs_root_node(root);
-
-			btrfs_set_root_node(&root->root_item, root->node);
 			err = btrfs_update_root(trans, fs_info->tree_root,
 						&root->root_key,
 						&root->root_item);
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
index b426022..923990e 100644
--- a/fs/fat/cache.c
+++ b/fs/fat/cache.c
@@ -241,7 +241,7 @@
 	while (*fclus < cluster) {
 		/* prevent the infinite loop of cluster chain */
 		if (*fclus > limit) {
-			fat_fs_panic(sb, "%s: detected the cluster chain loop"
+			fat_fs_error(sb, "%s: detected the cluster chain loop"
 				     " (i_pos %lld)", __func__,
 				     MSDOS_I(inode)->i_pos);
 			nr = -EIO;
@@ -252,7 +252,7 @@
 		if (nr < 0)
 			goto out;
 		else if (nr == FAT_ENT_FREE) {
-			fat_fs_panic(sb, "%s: invalid cluster chain"
+			fat_fs_error(sb, "%s: invalid cluster chain"
 				     " (i_pos %lld)", __func__,
 				     MSDOS_I(inode)->i_pos);
 			nr = -EIO;
@@ -285,7 +285,7 @@
 	if (ret < 0)
 		return ret;
 	else if (ret == FAT_ENT_EOF) {
-		fat_fs_panic(sb, "%s: request beyond EOF (i_pos %lld)",
+		fat_fs_error(sb, "%s: request beyond EOF (i_pos %lld)",
 			     __func__, MSDOS_I(inode)->i_pos);
 		return -EIO;
 	}
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index f350029..3b8e71b 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -1334,7 +1334,7 @@
 			goto error_remove;
 		}
 		if (dir->i_size & (sbi->cluster_size - 1)) {
-			fat_fs_panic(sb, "Odd directory size");
+			fat_fs_error(sb, "Odd directory size");
 			dir->i_size = (dir->i_size + sbi->cluster_size - 1)
 				& ~((loff_t)sbi->cluster_size - 1);
 		}
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index e4d8852..adb0e72 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -17,6 +17,10 @@
 #define VFAT_SFN_CREATE_WIN95	0x0100 /* emulate win95 rule for create */
 #define VFAT_SFN_CREATE_WINNT	0x0200 /* emulate winnt rule for create */
 
+#define FAT_ERRORS_CONT		1      /* ignore error and continue */
+#define FAT_ERRORS_PANIC	2      /* panic on error */
+#define FAT_ERRORS_RO		3      /* remount r/o on error */
+
 struct fat_mount_options {
 	uid_t fs_uid;
 	gid_t fs_gid;
@@ -26,6 +30,7 @@
 	char *iocharset;          /* Charset used for filename input/display */
 	unsigned short shortname; /* flags for shortname display/create rule */
 	unsigned char name_check; /* r = relaxed, n = normal, s = strict */
+	unsigned char errors;	  /* On error: continue, panic, remount-ro */
 	unsigned short allow_utime;/* permission for setting the [am]time */
 	unsigned quiet:1,         /* set = fake successful chmods and chowns */
 		 showexec:1,      /* set = only set x bit for com/exe/bat */
@@ -316,7 +321,7 @@
 extern int fat_flush_inodes(struct super_block *sb, struct inode *i1,
 		            struct inode *i2);
 /* fat/misc.c */
-extern void fat_fs_panic(struct super_block *s, const char *fmt, ...)
+extern void fat_fs_error(struct super_block *s, const char *fmt, ...)
 	__attribute__ ((format (printf, 2, 3))) __cold;
 extern void fat_clusters_flush(struct super_block *sb);
 extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster);
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 618f530..a810377 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -348,7 +348,7 @@
 
 	if (entry < FAT_START_ENT || sbi->max_cluster <= entry) {
 		fatent_brelse(fatent);
-		fat_fs_panic(sb, "invalid access to FAT (entry 0x%08x)", entry);
+		fat_fs_error(sb, "invalid access to FAT (entry 0x%08x)", entry);
 		return -EIO;
 	}
 
@@ -560,7 +560,7 @@
 			err = cluster;
 			goto error;
 		} else if (cluster == FAT_ENT_FREE) {
-			fat_fs_panic(sb, "%s: deleting FAT entry beyond EOF",
+			fat_fs_error(sb, "%s: deleting FAT entry beyond EOF",
 				     __func__);
 			err = -EIO;
 			goto error;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index e955a56..b28ea64 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -18,106 +18,112 @@
 #include <linux/security.h>
 #include "fat.h"
 
+static int fat_ioctl_get_attributes(struct inode *inode, u32 __user *user_attr)
+{
+	u32 attr;
+
+	mutex_lock(&inode->i_mutex);
+	attr = fat_make_attrs(inode);
+	mutex_unlock(&inode->i_mutex);
+
+	return put_user(attr, user_attr);
+}
+
+static int fat_ioctl_set_attributes(struct file *file, u32 __user *user_attr)
+{
+	struct inode *inode = file->f_path.dentry->d_inode;
+	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
+	int is_dir = S_ISDIR(inode->i_mode);
+	u32 attr, oldattr;
+	struct iattr ia;
+	int err;
+
+	err = get_user(attr, user_attr);
+	if (err)
+		goto out;
+
+	mutex_lock(&inode->i_mutex);
+	err = mnt_want_write(file->f_path.mnt);
+	if (err)
+		goto out_unlock_inode;
+
+	/*
+	 * ATTR_VOLUME and ATTR_DIR cannot be changed; this also
+	 * prevents the user from turning us into a VFAT
+	 * longname entry.  Also, we obviously can't set
+	 * any of the NTFS attributes in the high 24 bits.
+	 */
+	attr &= 0xff & ~(ATTR_VOLUME | ATTR_DIR);
+	/* Merge in ATTR_VOLUME and ATTR_DIR */
+	attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) |
+		(is_dir ? ATTR_DIR : 0);
+	oldattr = fat_make_attrs(inode);
+
+	/* Equivalent to a chmod() */
+	ia.ia_valid = ATTR_MODE | ATTR_CTIME;
+	ia.ia_ctime = current_fs_time(inode->i_sb);
+	if (is_dir)
+		ia.ia_mode = fat_make_mode(sbi, attr, S_IRWXUGO);
+	else {
+		ia.ia_mode = fat_make_mode(sbi, attr,
+			S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO));
+	}
+
+	/* The root directory has no attributes */
+	if (inode->i_ino == MSDOS_ROOT_INO && attr != ATTR_DIR) {
+		err = -EINVAL;
+		goto out_drop_write;
+	}
+
+	if (sbi->options.sys_immutable &&
+	    ((attr | oldattr) & ATTR_SYS) &&
+	    !capable(CAP_LINUX_IMMUTABLE)) {
+		err = -EPERM;
+		goto out_drop_write;
+	}
+
+	/*
+	 * The security check is questionable...  We single
+	 * out the RO attribute for checking by the security
+	 * module, just because it maps to a file mode.
+	 */
+	err = security_inode_setattr(file->f_path.dentry, &ia);
+	if (err)
+		goto out_drop_write;
+
+	/* This MUST be done before doing anything irreversible... */
+	err = fat_setattr(file->f_path.dentry, &ia);
+	if (err)
+		goto out_drop_write;
+
+	fsnotify_change(file->f_path.dentry, ia.ia_valid);
+	if (sbi->options.sys_immutable) {
+		if (attr & ATTR_SYS)
+			inode->i_flags |= S_IMMUTABLE;
+		else
+			inode->i_flags &= S_IMMUTABLE;
+	}
+
+	fat_save_attrs(inode, attr);
+	mark_inode_dirty(inode);
+out_drop_write:
+	mnt_drop_write(file->f_path.mnt);
+out_unlock_inode:
+	mutex_unlock(&inode->i_mutex);
+out:
+	return err;
+}
+
 int fat_generic_ioctl(struct inode *inode, struct file *filp,
 		      unsigned int cmd, unsigned long arg)
 {
-	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);
 	u32 __user *user_attr = (u32 __user *)arg;
 
 	switch (cmd) {
 	case FAT_IOCTL_GET_ATTRIBUTES:
-	{
-		u32 attr;
-
-		mutex_lock(&inode->i_mutex);
-		attr = fat_make_attrs(inode);
-		mutex_unlock(&inode->i_mutex);
-
-		return put_user(attr, user_attr);
-	}
+		return fat_ioctl_get_attributes(inode, user_attr);
 	case FAT_IOCTL_SET_ATTRIBUTES:
-	{
-		u32 attr, oldattr;
-		int err, is_dir = S_ISDIR(inode->i_mode);
-		struct iattr ia;
-
-		err = get_user(attr, user_attr);
-		if (err)
-			return err;
-
-		mutex_lock(&inode->i_mutex);
-
-		err = mnt_want_write(filp->f_path.mnt);
-		if (err)
-			goto up_no_drop_write;
-
-		/*
-		 * ATTR_VOLUME and ATTR_DIR cannot be changed; this also
-		 * prevents the user from turning us into a VFAT
-		 * longname entry.  Also, we obviously can't set
-		 * any of the NTFS attributes in the high 24 bits.
-		 */
-		attr &= 0xff & ~(ATTR_VOLUME | ATTR_DIR);
-		/* Merge in ATTR_VOLUME and ATTR_DIR */
-		attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) |
-			(is_dir ? ATTR_DIR : 0);
-		oldattr = fat_make_attrs(inode);
-
-		/* Equivalent to a chmod() */
-		ia.ia_valid = ATTR_MODE | ATTR_CTIME;
-		ia.ia_ctime = current_fs_time(inode->i_sb);
-		if (is_dir)
-			ia.ia_mode = fat_make_mode(sbi, attr, S_IRWXUGO);
-		else {
-			ia.ia_mode = fat_make_mode(sbi, attr,
-				S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO));
-		}
-
-		/* The root directory has no attributes */
-		if (inode->i_ino == MSDOS_ROOT_INO && attr != ATTR_DIR) {
-			err = -EINVAL;
-			goto up;
-		}
-
-		if (sbi->options.sys_immutable) {
-			if ((attr | oldattr) & ATTR_SYS) {
-				if (!capable(CAP_LINUX_IMMUTABLE)) {
-					err = -EPERM;
-					goto up;
-				}
-			}
-		}
-
-		/*
-		 * The security check is questionable...  We single
-		 * out the RO attribute for checking by the security
-		 * module, just because it maps to a file mode.
-		 */
-		err = security_inode_setattr(filp->f_path.dentry, &ia);
-		if (err)
-			goto up;
-
-		/* This MUST be done before doing anything irreversible... */
-		err = fat_setattr(filp->f_path.dentry, &ia);
-		if (err)
-			goto up;
-
-		fsnotify_change(filp->f_path.dentry, ia.ia_valid);
-		if (sbi->options.sys_immutable) {
-			if (attr & ATTR_SYS)
-				inode->i_flags |= S_IMMUTABLE;
-			else
-				inode->i_flags &= S_IMMUTABLE;
-		}
-
-		fat_save_attrs(inode, attr);
-		mark_inode_dirty(inode);
-up:
-		mnt_drop_write(filp->f_path.mnt);
-up_no_drop_write:
-		mutex_unlock(&inode->i_mutex);
-		return err;
-	}
+		return fat_ioctl_set_attributes(filp, user_attr);
 	default:
 		return -ENOTTY;	/* Inappropriate ioctl for device */
 	}
@@ -225,7 +231,7 @@
 			fatent_brelse(&fatent);
 			return 0;
 		} else if (ret == FAT_ENT_FREE) {
-			fat_fs_panic(sb,
+			fat_fs_error(sb,
 				     "%s: invalid cluster chain (i_pos %lld)",
 				     __func__, MSDOS_I(inode)->i_pos);
 			ret = -EIO;
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 51a5ecf..304b411 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -76,7 +76,7 @@
 		return 0;
 
 	if (iblock != MSDOS_I(inode)->mmu_private >> sb->s_blocksize_bits) {
-		fat_fs_panic(sb, "corrupted file size (i_pos %lld, %lld)",
+		fat_fs_error(sb, "corrupted file size (i_pos %lld, %lld)",
 			MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private);
 		return -EIO;
 	}
@@ -856,6 +856,12 @@
 		seq_puts(m, ",flush");
 	if (opts->tz_utc)
 		seq_puts(m, ",tz=UTC");
+	if (opts->errors == FAT_ERRORS_CONT)
+		seq_puts(m, ",errors=continue");
+	else if (opts->errors == FAT_ERRORS_PANIC)
+		seq_puts(m, ",errors=panic");
+	else
+		seq_puts(m, ",errors=remount-ro");
 
 	return 0;
 }
@@ -868,7 +874,8 @@
 	Opt_charset, Opt_shortname_lower, Opt_shortname_win95,
 	Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes,
 	Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes,
-	Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err,
+	Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err_cont,
+	Opt_err_panic, Opt_err_ro, Opt_err,
 };
 
 static const match_table_t fat_tokens = {
@@ -891,6 +898,11 @@
 	{Opt_showexec, "showexec"},
 	{Opt_debug, "debug"},
 	{Opt_immutable, "sys_immutable"},
+	{Opt_flush, "flush"},
+	{Opt_tz_utc, "tz=UTC"},
+	{Opt_err_cont, "errors=continue"},
+	{Opt_err_panic, "errors=panic"},
+	{Opt_err_ro, "errors=remount-ro"},
 	{Opt_obsolate, "conv=binary"},
 	{Opt_obsolate, "conv=text"},
 	{Opt_obsolate, "conv=auto"},
@@ -902,8 +914,6 @@
 	{Opt_obsolate, "cvf_format=%20s"},
 	{Opt_obsolate, "cvf_options=%100s"},
 	{Opt_obsolate, "posix"},
-	{Opt_flush, "flush"},
-	{Opt_tz_utc, "tz=UTC"},
 	{Opt_err, NULL},
 };
 static const match_table_t msdos_tokens = {
@@ -973,6 +983,7 @@
 	opts->numtail = 1;
 	opts->usefree = opts->nocase = 0;
 	opts->tz_utc = 0;
+	opts->errors = FAT_ERRORS_RO;
 	*debug = 0;
 
 	if (!options)
@@ -1065,6 +1076,15 @@
 		case Opt_tz_utc:
 			opts->tz_utc = 1;
 			break;
+		case Opt_err_cont:
+			opts->errors = FAT_ERRORS_CONT;
+			break;
+		case Opt_err_panic:
+			opts->errors = FAT_ERRORS_PANIC;
+			break;
+		case Opt_err_ro:
+			opts->errors = FAT_ERRORS_RO;
+			break;
 
 		/* msdos specific */
 		case Opt_dots:
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index ac39ebc..a6c2047 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -12,14 +12,19 @@
 #include "fat.h"
 
 /*
- * fat_fs_panic reports a severe file system problem and sets the file system
- * read-only. The file system can be made writable again by remounting it.
+ * fat_fs_error reports a file system problem that might indicate fa data
+ * corruption/inconsistency. Depending on 'errors' mount option the
+ * panic() is called, or error message is printed FAT and nothing is done,
+ * or filesystem is remounted read-only (default behavior).
+ * In case the file system is remounted read-only, it can be made writable
+ * again by remounting it.
  */
-void fat_fs_panic(struct super_block *s, const char *fmt, ...)
+void fat_fs_error(struct super_block *s, const char *fmt, ...)
 {
+	struct fat_mount_options *opts = &MSDOS_SB(s)->options;
 	va_list args;
 
-	printk(KERN_ERR "FAT: Filesystem panic (dev %s)\n", s->s_id);
+	printk(KERN_ERR "FAT: Filesystem error (dev %s)\n", s->s_id);
 
 	printk(KERN_ERR "    ");
 	va_start(args, fmt);
@@ -27,13 +32,14 @@
 	va_end(args);
 	printk("\n");
 
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (opts->errors == FAT_ERRORS_PANIC)
+		panic("    FAT fs panic from previous error\n");
+	else if (opts->errors == FAT_ERRORS_RO && !(s->s_flags & MS_RDONLY)) {
 		s->s_flags |= MS_RDONLY;
 		printk(KERN_ERR "    File system has been set read-only\n");
 	}
 }
-
-EXPORT_SYMBOL_GPL(fat_fs_panic);
+EXPORT_SYMBOL_GPL(fat_fs_error);
 
 /* Flushes the number of free clusters on FAT32 */
 /* XXX: Need to write one per FSINFO block.  Currently only writes 1 */
@@ -124,7 +130,7 @@
 			mark_inode_dirty(inode);
 	}
 	if (new_fclus != (inode->i_blocks >> (sbi->cluster_bits - 9))) {
-		fat_fs_panic(sb, "clusters badly computed (%d != %llu)",
+		fat_fs_error(sb, "clusters badly computed (%d != %llu)",
 			     new_fclus,
 			     (llu)(inode->i_blocks >> (sbi->cluster_bits - 9)));
 		fat_cache_inval_inode(inode);
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 20f5228..82f8873 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -608,7 +608,7 @@
 		sinfo.bh = NULL;
 	}
 	if (corrupt < 0) {
-		fat_fs_panic(new_dir->i_sb,
+		fat_fs_error(new_dir->i_sb,
 			     "%s: Filesystem corrupted (i_pos %lld)",
 			     __func__, sinfo.i_pos);
 	}
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index b50ecbe..8d6fdcf 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1030,7 +1030,7 @@
 		sinfo.bh = NULL;
 	}
 	if (corrupt < 0) {
-		fat_fs_panic(new_dir->i_sb,
+		fat_fs_error(new_dir->i_sb,
 			     "%s: Filesystem corrupted (i_pos %lld)",
 			     __func__, sinfo.i_pos);
 	}
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c
index bbbd5f2..41d6045 100644
--- a/fs/jfs/jfs_extent.c
+++ b/fs/jfs/jfs_extent.c
@@ -391,6 +391,7 @@
 		}
 		XADaddress(xp, xaddr);
 		XADlength(xp, xlen);
+		XADoffset(xp, prev);
 		/*
 		 * only preserve the abnr flag within the xad flags
 		 * of the returned hint.
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 678a067..9edcde4 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -475,6 +475,12 @@
 #define path_leaf_el(_path) ((_path)->p_node[(_path)->p_tree_depth].el)
 #define path_num_items(_path) ((_path)->p_tree_depth + 1)
 
+static int ocfs2_find_path(struct inode *inode, struct ocfs2_path *path,
+			   u32 cpos);
+static void ocfs2_adjust_rightmost_records(struct inode *inode,
+					   handle_t *handle,
+					   struct ocfs2_path *path,
+					   struct ocfs2_extent_rec *insert_rec);
 /*
  * Reset the actual path elements so that we can re-use the structure
  * to build another path. Generally, this involves freeing the buffer
@@ -1013,6 +1019,54 @@
 }
 
 /*
+ * Change range of the branches in the right most path according to the leaf
+ * extent block's rightmost record.
+ */
+static int ocfs2_adjust_rightmost_branch(handle_t *handle,
+					 struct inode *inode,
+					 struct ocfs2_extent_tree *et)
+{
+	int status;
+	struct ocfs2_path *path = NULL;
+	struct ocfs2_extent_list *el;
+	struct ocfs2_extent_rec *rec;
+
+	path = ocfs2_new_path_from_et(et);
+	if (!path) {
+		status = -ENOMEM;
+		return status;
+	}
+
+	status = ocfs2_find_path(inode, path, UINT_MAX);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out;
+	}
+
+	status = ocfs2_extend_trans(handle, path_num_items(path) +
+				    handle->h_buffer_credits);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out;
+	}
+
+	status = ocfs2_journal_access_path(inode, handle, path);
+	if (status < 0) {
+		mlog_errno(status);
+		goto out;
+	}
+
+	el = path_leaf_el(path);
+	rec = &el->l_recs[le32_to_cpu(el->l_next_free_rec) - 1];
+
+	ocfs2_adjust_rightmost_records(inode, handle, path, rec);
+
+out:
+	ocfs2_free_path(path);
+	return status;
+}
+
+/*
  * Add an entire tree branch to our inode. eb_bh is the extent block
  * to start at, if we don't want to start the branch at the dinode
  * structure.
@@ -1038,7 +1092,7 @@
 	struct ocfs2_extent_block *eb;
 	struct ocfs2_extent_list  *eb_el;
 	struct ocfs2_extent_list  *el;
-	u32 new_cpos;
+	u32 new_cpos, root_end;
 
 	mlog_entry_void();
 
@@ -1055,6 +1109,27 @@
 
 	new_blocks = le16_to_cpu(el->l_tree_depth);
 
+	eb = (struct ocfs2_extent_block *)(*last_eb_bh)->b_data;
+	new_cpos = ocfs2_sum_rightmost_rec(&eb->h_list);
+	root_end = ocfs2_sum_rightmost_rec(et->et_root_el);
+
+	/*
+	 * If there is a gap before the root end and the real end
+	 * of the righmost leaf block, we need to remove the gap
+	 * between new_cpos and root_end first so that the tree
+	 * is consistent after we add a new branch(it will start
+	 * from new_cpos).
+	 */
+	if (root_end > new_cpos) {
+		mlog(0, "adjust the cluster end from %u to %u\n",
+		     root_end, new_cpos);
+		status = ocfs2_adjust_rightmost_branch(handle, inode, et);
+		if (status) {
+			mlog_errno(status);
+			goto bail;
+		}
+	}
+
 	/* allocate the number of new eb blocks we need */
 	new_eb_bhs = kcalloc(new_blocks, sizeof(struct buffer_head *),
 			     GFP_KERNEL);
@@ -1071,9 +1146,6 @@
 		goto bail;
 	}
 
-	eb = (struct ocfs2_extent_block *)(*last_eb_bh)->b_data;
-	new_cpos = ocfs2_sum_rightmost_rec(&eb->h_list);
-
 	/* Note: new_eb_bhs[new_blocks - 1] is the guy which will be
 	 * linked with the rest of the tree.
 	 * conversly, new_eb_bhs[0] is the new bottommost leaf.
diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c
index 2a947c4..a1163b8 100644
--- a/fs/ocfs2/blockcheck.c
+++ b/fs/ocfs2/blockcheck.c
@@ -22,6 +22,9 @@
 #include <linux/crc32.h>
 #include <linux/buffer_head.h>
 #include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/fs.h>
 #include <asm/byteorder.h>
 
 #include <cluster/masklog.h>
@@ -222,6 +225,155 @@
 	ocfs2_hamming_fix(data, blocksize * 8, 0, fix);
 }
 
+
+/*
+ * Debugfs handling.
+ */
+
+#ifdef CONFIG_DEBUG_FS
+
+static int blockcheck_u64_get(void *data, u64 *val)
+{
+	*val = *(u64 *)data;
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(blockcheck_fops, blockcheck_u64_get, NULL, "%llu\n");
+
+static struct dentry *blockcheck_debugfs_create(const char *name,
+						struct dentry *parent,
+						u64 *value)
+{
+	return debugfs_create_file(name, S_IFREG | S_IRUSR, parent, value,
+				   &blockcheck_fops);
+}
+
+static void ocfs2_blockcheck_debug_remove(struct ocfs2_blockcheck_stats *stats)
+{
+	if (stats) {
+		debugfs_remove(stats->b_debug_check);
+		stats->b_debug_check = NULL;
+		debugfs_remove(stats->b_debug_failure);
+		stats->b_debug_failure = NULL;
+		debugfs_remove(stats->b_debug_recover);
+		stats->b_debug_recover = NULL;
+		debugfs_remove(stats->b_debug_dir);
+		stats->b_debug_dir = NULL;
+	}
+}
+
+static int ocfs2_blockcheck_debug_install(struct ocfs2_blockcheck_stats *stats,
+					  struct dentry *parent)
+{
+	int rc = -EINVAL;
+
+	if (!stats)
+		goto out;
+
+	stats->b_debug_dir = debugfs_create_dir("blockcheck", parent);
+	if (!stats->b_debug_dir)
+		goto out;
+
+	stats->b_debug_check =
+		blockcheck_debugfs_create("blocks_checked",
+					  stats->b_debug_dir,
+					  &stats->b_check_count);
+
+	stats->b_debug_failure =
+		blockcheck_debugfs_create("checksums_failed",
+					  stats->b_debug_dir,
+					  &stats->b_failure_count);
+
+	stats->b_debug_recover =
+		blockcheck_debugfs_create("ecc_recoveries",
+					  stats->b_debug_dir,
+					  &stats->b_recover_count);
+	if (stats->b_debug_check && stats->b_debug_failure &&
+	    stats->b_debug_recover)
+		rc = 0;
+
+out:
+	if (rc)
+		ocfs2_blockcheck_debug_remove(stats);
+	return rc;
+}
+#else
+static inline int ocfs2_blockcheck_debug_install(struct ocfs2_blockcheck_stats *stats,
+						 struct dentry *parent)
+{
+	return 0;
+}
+
+static inline void ocfs2_blockcheck_debug_remove(struct ocfs2_blockcheck_stats *stats)
+{
+}
+#endif  /* CONFIG_DEBUG_FS */
+
+/* Always-called wrappers for starting and stopping the debugfs files */
+int ocfs2_blockcheck_stats_debugfs_install(struct ocfs2_blockcheck_stats *stats,
+					   struct dentry *parent)
+{
+	return ocfs2_blockcheck_debug_install(stats, parent);
+}
+
+void ocfs2_blockcheck_stats_debugfs_remove(struct ocfs2_blockcheck_stats *stats)
+{
+	ocfs2_blockcheck_debug_remove(stats);
+}
+
+static void ocfs2_blockcheck_inc_check(struct ocfs2_blockcheck_stats *stats)
+{
+	u64 new_count;
+
+	if (!stats)
+		return;
+
+	spin_lock(&stats->b_lock);
+	stats->b_check_count++;
+	new_count = stats->b_check_count;
+	spin_unlock(&stats->b_lock);
+
+	if (!new_count)
+		mlog(ML_NOTICE, "Block check count has wrapped\n");
+}
+
+static void ocfs2_blockcheck_inc_failure(struct ocfs2_blockcheck_stats *stats)
+{
+	u64 new_count;
+
+	if (!stats)
+		return;
+
+	spin_lock(&stats->b_lock);
+	stats->b_failure_count++;
+	new_count = stats->b_failure_count;
+	spin_unlock(&stats->b_lock);
+
+	if (!new_count)
+		mlog(ML_NOTICE, "Checksum failure count has wrapped\n");
+}
+
+static void ocfs2_blockcheck_inc_recover(struct ocfs2_blockcheck_stats *stats)
+{
+	u64 new_count;
+
+	if (!stats)
+		return;
+
+	spin_lock(&stats->b_lock);
+	stats->b_recover_count++;
+	new_count = stats->b_recover_count;
+	spin_unlock(&stats->b_lock);
+
+	if (!new_count)
+		mlog(ML_NOTICE, "ECC recovery count has wrapped\n");
+}
+
+
+
+/*
+ * These are the low-level APIs for using the ocfs2_block_check structure.
+ */
+
 /*
  * This function generates check information for a block.
  * data is the block to be checked.  bc is a pointer to the
@@ -266,12 +418,15 @@
  * Again, the data passed in should be the on-disk endian.
  */
 int ocfs2_block_check_validate(void *data, size_t blocksize,
-			       struct ocfs2_block_check *bc)
+			       struct ocfs2_block_check *bc,
+			       struct ocfs2_blockcheck_stats *stats)
 {
 	int rc = 0;
 	struct ocfs2_block_check check;
 	u32 crc, ecc;
 
+	ocfs2_blockcheck_inc_check(stats);
+
 	check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
 	check.bc_ecc = le16_to_cpu(bc->bc_ecc);
 
@@ -282,6 +437,7 @@
 	if (crc == check.bc_crc32e)
 		goto out;
 
+	ocfs2_blockcheck_inc_failure(stats);
 	mlog(ML_ERROR,
 	     "CRC32 failed: stored: %u, computed %u.  Applying ECC.\n",
 	     (unsigned int)check.bc_crc32e, (unsigned int)crc);
@@ -292,8 +448,10 @@
 
 	/* And check the crc32 again */
 	crc = crc32_le(~0, data, blocksize);
-	if (crc == check.bc_crc32e)
+	if (crc == check.bc_crc32e) {
+		ocfs2_blockcheck_inc_recover(stats);
 		goto out;
+	}
 
 	mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
 	     (unsigned int)check.bc_crc32e, (unsigned int)crc);
@@ -366,7 +524,8 @@
  * Again, the data passed in should be the on-disk endian.
  */
 int ocfs2_block_check_validate_bhs(struct buffer_head **bhs, int nr,
-				   struct ocfs2_block_check *bc)
+				   struct ocfs2_block_check *bc,
+				   struct ocfs2_blockcheck_stats *stats)
 {
 	int i, rc = 0;
 	struct ocfs2_block_check check;
@@ -377,6 +536,8 @@
 	if (!nr)
 		return 0;
 
+	ocfs2_blockcheck_inc_check(stats);
+
 	check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
 	check.bc_ecc = le16_to_cpu(bc->bc_ecc);
 
@@ -388,6 +549,7 @@
 	if (crc == check.bc_crc32e)
 		goto out;
 
+	ocfs2_blockcheck_inc_failure(stats);
 	mlog(ML_ERROR,
 	     "CRC32 failed: stored: %u, computed %u.  Applying ECC.\n",
 	     (unsigned int)check.bc_crc32e, (unsigned int)crc);
@@ -416,8 +578,10 @@
 	/* And check the crc32 again */
 	for (i = 0, crc = ~0; i < nr; i++)
 		crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
-	if (crc == check.bc_crc32e)
+	if (crc == check.bc_crc32e) {
+		ocfs2_blockcheck_inc_recover(stats);
 		goto out;
+	}
 
 	mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
 	     (unsigned int)check.bc_crc32e, (unsigned int)crc);
@@ -448,9 +612,11 @@
 			    struct ocfs2_block_check *bc)
 {
 	int rc = 0;
+	struct ocfs2_super *osb = OCFS2_SB(sb);
 
-	if (ocfs2_meta_ecc(OCFS2_SB(sb)))
-		rc = ocfs2_block_check_validate(data, sb->s_blocksize, bc);
+	if (ocfs2_meta_ecc(osb))
+		rc = ocfs2_block_check_validate(data, sb->s_blocksize, bc,
+						&osb->osb_ecc_stats);
 
 	return rc;
 }
@@ -468,9 +634,11 @@
 				struct ocfs2_block_check *bc)
 {
 	int rc = 0;
+	struct ocfs2_super *osb = OCFS2_SB(sb);
 
-	if (ocfs2_meta_ecc(OCFS2_SB(sb)))
-		rc = ocfs2_block_check_validate_bhs(bhs, nr, bc);
+	if (ocfs2_meta_ecc(osb))
+		rc = ocfs2_block_check_validate_bhs(bhs, nr, bc,
+						    &osb->osb_ecc_stats);
 
 	return rc;
 }
diff --git a/fs/ocfs2/blockcheck.h b/fs/ocfs2/blockcheck.h
index 70ec3fe..d4b69fe 100644
--- a/fs/ocfs2/blockcheck.h
+++ b/fs/ocfs2/blockcheck.h
@@ -21,6 +21,24 @@
 #define OCFS2_BLOCKCHECK_H
 
 
+/* Count errors and error correction from blockcheck.c */
+struct ocfs2_blockcheck_stats {
+	spinlock_t b_lock;
+	u64 b_check_count;	/* Number of blocks we've checked */
+	u64 b_failure_count;	/* Number of failed checksums */
+	u64 b_recover_count;	/* Number of blocks fixed by ecc */
+
+	/*
+	 * debugfs entries, used if this is passed to
+	 * ocfs2_blockcheck_stats_debugfs_install()
+	 */
+	struct dentry *b_debug_dir;	/* Parent of the debugfs  files */
+	struct dentry *b_debug_check;	/* Exposes b_check_count */
+	struct dentry *b_debug_failure;	/* Exposes b_failure_count */
+	struct dentry *b_debug_recover;	/* Exposes b_recover_count */
+};
+
+
 /* High level block API */
 void ocfs2_compute_meta_ecc(struct super_block *sb, void *data,
 			    struct ocfs2_block_check *bc);
@@ -37,11 +55,18 @@
 void ocfs2_block_check_compute(void *data, size_t blocksize,
 			       struct ocfs2_block_check *bc);
 int ocfs2_block_check_validate(void *data, size_t blocksize,
-			       struct ocfs2_block_check *bc);
+			       struct ocfs2_block_check *bc,
+			       struct ocfs2_blockcheck_stats *stats);
 void ocfs2_block_check_compute_bhs(struct buffer_head **bhs, int nr,
 				   struct ocfs2_block_check *bc);
 int ocfs2_block_check_validate_bhs(struct buffer_head **bhs, int nr,
-				   struct ocfs2_block_check *bc);
+				   struct ocfs2_block_check *bc,
+				   struct ocfs2_blockcheck_stats *stats);
+
+/* Debug Initialization */
+int ocfs2_blockcheck_stats_debugfs_install(struct ocfs2_blockcheck_stats *stats,
+					   struct dentry *parent);
+void ocfs2_blockcheck_stats_debugfs_remove(struct ocfs2_blockcheck_stats *stats);
 
 /*
  * Hamming code functions
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 7e72a81..696c32e 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -48,34 +48,33 @@
  * only emit the appropriage printk() when the caller passes in a constant
  * mask, as is almost always the case.
  *
- * All this bitmask nonsense is hidden from the /proc interface so that Joel
- * doesn't have an aneurism.  Reading the file gives a straight forward
- * indication of which bits are on or off:
- * 	ENTRY off
- * 	EXIT off
+ * All this bitmask nonsense is managed from the files under
+ * /sys/fs/o2cb/logmask/.  Reading the files gives a straightforward
+ * indication of which bits are allowed (allow) or denied (off/deny).
+ * 	ENTRY deny
+ * 	EXIT deny
  * 	TCP off
  * 	MSG off
  * 	SOCKET off
- * 	ERROR off
- * 	NOTICE on
+ * 	ERROR allow
+ * 	NOTICE allow
  *
  * Writing changes the state of a given bit and requires a strictly formatted
  * single write() call:
  *
- * 	write(fd, "ENTRY on", 8);
+ * 	write(fd, "allow", 5);
  *
- * would turn the entry bit on.  "1" is also accepted in the place of "on", and
- * "off" and "0" behave as expected.
+ * Echoing allow/deny/off string into the logmask files can flip the bits
+ * on or off as expected; here is the bash script for example:
  *
- * Some trivial shell can flip all the bits on or off:
+ * log_mask="/sys/fs/o2cb/log_mask"
+ * for node in ENTRY EXIT TCP MSG SOCKET ERROR NOTICE; do
+ *	echo allow >"$log_mask"/"$node"
+ * done
  *
- * log_mask="/proc/fs/ocfs2_nodemanager/log_mask"
- * cat $log_mask | (
- * 	while read bit status; do
- * 		# $1 is "on" or "off", say
- * 		echo "$bit $1" > $log_mask
- * 	done
- * )
+ * The debugfs.ocfs2 tool can also flip the bits with the -l option:
+ *
+ * debugfs.ocfs2 -l TCP allow
  */
 
 /* for task_struct */
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 9fbe849..334f231 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -974,7 +974,7 @@
 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec,
 			   size_t caller_veclen, u8 target_node, int *status)
 {
-	int ret, error = 0;
+	int ret;
 	struct o2net_msg *msg = NULL;
 	size_t veclen, caller_bytes = 0;
 	struct kvec *vec = NULL;
@@ -1015,10 +1015,7 @@
 
 	o2net_set_nst_sock_time(&nst);
 
-	ret = wait_event_interruptible(nn->nn_sc_wq,
-				       o2net_tx_can_proceed(nn, &sc, &error));
-	if (!ret && error)
-		ret = error;
+	wait_event(nn->nn_sc_wq, o2net_tx_can_proceed(nn, &sc, &ret));
 	if (ret)
 		goto out;
 
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index c575230..b358f3b 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2900,6 +2900,8 @@
 	alloc = ocfs2_clusters_for_bytes(sb, bytes);
 	dx_alloc = 0;
 
+	down_write(&oi->ip_alloc_sem);
+
 	if (ocfs2_supports_indexed_dirs(osb)) {
 		credits += ocfs2_add_dir_index_credits(sb);
 
@@ -2940,8 +2942,6 @@
 		goto out;
 	}
 
-	down_write(&oi->ip_alloc_sem);
-
 	/*
 	 * Prepare for worst case allocation scenario of two separate
 	 * extents in the unindexed tree.
@@ -2953,7 +2953,7 @@
 	if (IS_ERR(handle)) {
 		ret = PTR_ERR(handle);
 		mlog_errno(ret);
-		goto out_sem;
+		goto out;
 	}
 
 	if (vfs_dq_alloc_space_nodirty(dir,
@@ -3172,10 +3172,8 @@
 
 	ocfs2_commit_trans(osb, handle);
 
-out_sem:
-	up_write(&oi->ip_alloc_sem);
-
 out:
+	up_write(&oi->ip_alloc_sem);
 	if (data_ac)
 		ocfs2_free_alloc_context(data_ac);
 	if (meta_ac)
@@ -3322,11 +3320,15 @@
 		brelse(new_bh);
 		new_bh = NULL;
 
+		down_write(&OCFS2_I(dir)->ip_alloc_sem);
+		drop_alloc_sem = 1;
 		dir_i_size = i_size_read(dir);
 		credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
 		goto do_extend;
 	}
 
+	down_write(&OCFS2_I(dir)->ip_alloc_sem);
+	drop_alloc_sem = 1;
 	dir_i_size = i_size_read(dir);
 	mlog(0, "extending dir %llu (i_size = %lld)\n",
 	     (unsigned long long)OCFS2_I(dir)->ip_blkno, dir_i_size);
@@ -3370,9 +3372,6 @@
 		credits++; /* For attaching the new dirent block to the
 			    * dx_root */
 
-	down_write(&OCFS2_I(dir)->ip_alloc_sem);
-	drop_alloc_sem = 1;
-
 	handle = ocfs2_start_trans(osb, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
@@ -3435,10 +3434,10 @@
 	*new_de_bh = new_bh;
 	get_bh(*new_de_bh);
 bail:
-	if (drop_alloc_sem)
-		up_write(&OCFS2_I(dir)->ip_alloc_sem);
 	if (handle)
 		ocfs2_commit_trans(osb, handle);
+	if (drop_alloc_sem)
+		up_write(&OCFS2_I(dir)->ip_alloc_sem);
 
 	if (data_ac)
 		ocfs2_free_alloc_context(data_ac);
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index e15fc7d..6cdeaa7 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -248,6 +248,10 @@
 	.flags		= 0,
 };
 
+static struct ocfs2_lock_res_ops ocfs2_orphan_scan_lops = {
+	.flags		= LOCK_TYPE_REQUIRES_REFRESH|LOCK_TYPE_USES_LVB,
+};
+
 static struct ocfs2_lock_res_ops ocfs2_dentry_lops = {
 	.get_osb	= ocfs2_get_dentry_osb,
 	.post_unlock	= ocfs2_dentry_post_unlock,
@@ -637,6 +641,19 @@
 				   &ocfs2_nfs_sync_lops, osb);
 }
 
+static void ocfs2_orphan_scan_lock_res_init(struct ocfs2_lock_res *res,
+					    struct ocfs2_super *osb)
+{
+	struct ocfs2_orphan_scan_lvb *lvb;
+
+	ocfs2_lock_res_init_once(res);
+	ocfs2_build_lock_name(OCFS2_LOCK_TYPE_ORPHAN_SCAN, 0, 0, res->l_name);
+	ocfs2_lock_res_init_common(osb, res, OCFS2_LOCK_TYPE_ORPHAN_SCAN,
+				   &ocfs2_orphan_scan_lops, osb);
+	lvb = ocfs2_dlm_lvb(&res->l_lksb);
+	lvb->lvb_version = OCFS2_ORPHAN_LVB_VERSION;
+}
+
 void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
 			      struct ocfs2_file_private *fp)
 {
@@ -2352,6 +2369,37 @@
 	mlog_exit_void();
 }
 
+int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex)
+{
+	struct ocfs2_lock_res *lockres;
+	struct ocfs2_orphan_scan_lvb *lvb;
+	int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+	int status = 0;
+
+	lockres = &osb->osb_orphan_scan.os_lockres;
+	status = ocfs2_cluster_lock(osb, lockres, level, 0, 0);
+	if (status < 0)
+		return status;
+
+	lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+	if (lvb->lvb_version == OCFS2_ORPHAN_LVB_VERSION)
+		*seqno = be32_to_cpu(lvb->lvb_os_seqno);
+	return status;
+}
+
+void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno, int ex)
+{
+	struct ocfs2_lock_res *lockres;
+	struct ocfs2_orphan_scan_lvb *lvb;
+	int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+
+	lockres = &osb->osb_orphan_scan.os_lockres;
+	lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+	lvb->lvb_version = OCFS2_ORPHAN_LVB_VERSION;
+	lvb->lvb_os_seqno = cpu_to_be32(seqno);
+	ocfs2_cluster_unlock(osb, lockres, level);
+}
+
 int ocfs2_super_lock(struct ocfs2_super *osb,
 		     int ex)
 {
@@ -2842,6 +2890,7 @@
 	ocfs2_super_lock_res_init(&osb->osb_super_lockres, osb);
 	ocfs2_rename_lock_res_init(&osb->osb_rename_lockres, osb);
 	ocfs2_nfs_sync_lock_res_init(&osb->osb_nfs_sync_lockres, osb);
+	ocfs2_orphan_scan_lock_res_init(&osb->osb_orphan_scan.os_lockres, osb);
 
 	osb->cconn = conn;
 
@@ -2878,6 +2927,7 @@
 	ocfs2_lock_res_free(&osb->osb_super_lockres);
 	ocfs2_lock_res_free(&osb->osb_rename_lockres);
 	ocfs2_lock_res_free(&osb->osb_nfs_sync_lockres);
+	ocfs2_lock_res_free(&osb->osb_orphan_scan.os_lockres);
 
 	ocfs2_cluster_disconnect(osb->cconn, hangup_pending);
 	osb->cconn = NULL;
@@ -3061,6 +3111,7 @@
 	ocfs2_simple_drop_lockres(osb, &osb->osb_super_lockres);
 	ocfs2_simple_drop_lockres(osb, &osb->osb_rename_lockres);
 	ocfs2_simple_drop_lockres(osb, &osb->osb_nfs_sync_lockres);
+	ocfs2_simple_drop_lockres(osb, &osb->osb_orphan_scan.os_lockres);
 }
 
 int ocfs2_drop_inode_locks(struct inode *inode)
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index e1fd572..31b90d7 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -62,6 +62,14 @@
 	__be32	lvb_free_entry;
 };
 
+#define OCFS2_ORPHAN_LVB_VERSION 1
+
+struct ocfs2_orphan_scan_lvb {
+	__u8	lvb_version;
+	__u8	lvb_reserved[3];
+	__be32	lvb_os_seqno;
+};
+
 /* ocfs2_inode_lock_full() 'arg_flags' flags */
 /* don't wait on recovery. */
 #define OCFS2_META_LOCK_RECOVERY	(0x01)
@@ -113,6 +121,9 @@
 		     int ex);
 void ocfs2_super_unlock(struct ocfs2_super *osb,
 			int ex);
+int ocfs2_orphan_scan_lock(struct ocfs2_super *osb, u32 *seqno, int ex);
+void ocfs2_orphan_scan_unlock(struct ocfs2_super *osb, u32 seqno, int ex);
+
 int ocfs2_rename_lock(struct ocfs2_super *osb);
 void ocfs2_rename_unlock(struct ocfs2_super *osb);
 int ocfs2_nfs_sync_lock(struct ocfs2_super *osb, int ex);
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index c2a87c8..07267e0 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -187,6 +187,9 @@
 	if (err)
 		goto bail;
 
+	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+		goto bail;
+
 	journal = osb->journal->j_journal;
 	err = jbd2_journal_force_commit(journal);
 
@@ -894,9 +897,9 @@
 	struct ocfs2_super *osb = OCFS2_SB(sb);
 	struct buffer_head *bh = NULL;
 	handle_t *handle = NULL;
-	int locked[MAXQUOTAS] = {0, 0};
-	int credits, qtype;
-	struct ocfs2_mem_dqinfo *oinfo;
+	int qtype;
+	struct dquot *transfer_from[MAXQUOTAS] = { };
+	struct dquot *transfer_to[MAXQUOTAS] = { };
 
 	mlog_entry("(0x%p, '%.*s')\n", dentry,
 	           dentry->d_name.len, dentry->d_name.name);
@@ -969,30 +972,37 @@
 
 	if ((attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
 	    (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
-		credits = OCFS2_INODE_UPDATE_CREDITS;
+		/*
+		 * Gather pointers to quota structures so that allocation /
+		 * freeing of quota structures happens here and not inside
+		 * vfs_dq_transfer() where we have problems with lock ordering
+		 */
 		if (attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid
 		    && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
 		    OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
-			oinfo = sb_dqinfo(sb, USRQUOTA)->dqi_priv;
-			status = ocfs2_lock_global_qf(oinfo, 1);
-			if (status < 0)
+			transfer_to[USRQUOTA] = dqget(sb, attr->ia_uid,
+						      USRQUOTA);
+			transfer_from[USRQUOTA] = dqget(sb, inode->i_uid,
+							USRQUOTA);
+			if (!transfer_to[USRQUOTA] || !transfer_from[USRQUOTA]) {
+				status = -ESRCH;
 				goto bail_unlock;
-			credits += ocfs2_calc_qinit_credits(sb, USRQUOTA) +
-				ocfs2_calc_qdel_credits(sb, USRQUOTA);
-			locked[USRQUOTA] = 1;
+			}
 		}
 		if (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid
 		    && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
 		    OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
-			oinfo = sb_dqinfo(sb, GRPQUOTA)->dqi_priv;
-			status = ocfs2_lock_global_qf(oinfo, 1);
-			if (status < 0)
+			transfer_to[GRPQUOTA] = dqget(sb, attr->ia_gid,
+						      GRPQUOTA);
+			transfer_from[GRPQUOTA] = dqget(sb, inode->i_gid,
+							GRPQUOTA);
+			if (!transfer_to[GRPQUOTA] || !transfer_from[GRPQUOTA]) {
+				status = -ESRCH;
 				goto bail_unlock;
-			credits += ocfs2_calc_qinit_credits(sb, GRPQUOTA) +
-				   ocfs2_calc_qdel_credits(sb, GRPQUOTA);
-			locked[GRPQUOTA] = 1;
+			}
 		}
-		handle = ocfs2_start_trans(osb, credits);
+		handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS +
+					   2 * ocfs2_quota_trans_credits(sb));
 		if (IS_ERR(handle)) {
 			status = PTR_ERR(handle);
 			mlog_errno(status);
@@ -1030,12 +1040,6 @@
 bail_commit:
 	ocfs2_commit_trans(osb, handle);
 bail_unlock:
-	for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
-		if (!locked[qtype])
-			continue;
-		oinfo = sb_dqinfo(sb, qtype)->dqi_priv;
-		ocfs2_unlock_global_qf(oinfo, 1);
-	}
 	ocfs2_inode_unlock(inode, 1);
 bail_unlock_rw:
 	if (size_change)
@@ -1043,6 +1047,12 @@
 bail:
 	brelse(bh);
 
+	/* Release quota pointers in case we acquired them */
+	for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+		dqput(transfer_to[qtype]);
+		dqput(transfer_from[qtype]);
+	}
+
 	if (!status && attr->ia_valid & ATTR_MODE) {
 		status = ocfs2_acl_chmod(inode);
 		if (status < 0)
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index a20a0f1..4a3b9e6 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -28,6 +28,8 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/kthread.h>
+#include <linux/time.h>
+#include <linux/random.h>
 
 #define MLOG_MASK_PREFIX ML_JOURNAL
 #include <cluster/masklog.h>
@@ -52,6 +54,8 @@
 
 DEFINE_SPINLOCK(trans_inc_lock);
 
+#define ORPHAN_SCAN_SCHEDULE_TIMEOUT 300000
+
 static int ocfs2_force_read_journal(struct inode *inode);
 static int ocfs2_recover_node(struct ocfs2_super *osb,
 			      int node_num, int slot_num);
@@ -1841,6 +1845,113 @@
 	return status;
 }
 
+/*
+ * Scan timer should get fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT. Add some
+ * randomness to the timeout to minimize multple nodes firing the timer at the
+ * same time.
+ */
+static inline unsigned long ocfs2_orphan_scan_timeout(void)
+{
+	unsigned long time;
+
+	get_random_bytes(&time, sizeof(time));
+	time = ORPHAN_SCAN_SCHEDULE_TIMEOUT + (time % 5000);
+	return msecs_to_jiffies(time);
+}
+
+/*
+ * ocfs2_queue_orphan_scan calls ocfs2_queue_recovery_completion for
+ * every slot, queuing a recovery of the slot on the ocfs2_wq thread. This
+ * is done to catch any orphans that are left over in orphan directories.
+ *
+ * ocfs2_queue_orphan_scan gets called every ORPHAN_SCAN_SCHEDULE_TIMEOUT
+ * seconds.  It gets an EX lock on os_lockres and checks sequence number
+ * stored in LVB. If the sequence number has changed, it means some other
+ * node has done the scan.  This node skips the scan and tracks the
+ * sequence number.  If the sequence number didn't change, it means a scan
+ * hasn't happened.  The node queues a scan and increments the
+ * sequence number in the LVB.
+ */
+void ocfs2_queue_orphan_scan(struct ocfs2_super *osb)
+{
+	struct ocfs2_orphan_scan *os;
+	int status, i;
+	u32 seqno = 0;
+
+	os = &osb->osb_orphan_scan;
+
+	status = ocfs2_orphan_scan_lock(osb, &seqno, DLM_LOCK_EX);
+	if (status < 0) {
+		if (status != -EAGAIN)
+			mlog_errno(status);
+		goto out;
+	}
+
+	if (os->os_seqno != seqno) {
+		os->os_seqno = seqno;
+		goto unlock;
+	}
+
+	for (i = 0; i < osb->max_slots; i++)
+		ocfs2_queue_recovery_completion(osb->journal, i, NULL, NULL,
+						NULL);
+	/*
+	 * We queued a recovery on orphan slots, increment the sequence
+	 * number and update LVB so other node will skip the scan for a while
+	 */
+	seqno++;
+	os->os_count++;
+	os->os_scantime = CURRENT_TIME;
+unlock:
+	ocfs2_orphan_scan_unlock(osb, seqno, DLM_LOCK_EX);
+out:
+	return;
+}
+
+/* Worker task that gets fired every ORPHAN_SCAN_SCHEDULE_TIMEOUT millsec */
+void ocfs2_orphan_scan_work(struct work_struct *work)
+{
+	struct ocfs2_orphan_scan *os;
+	struct ocfs2_super *osb;
+
+	os = container_of(work, struct ocfs2_orphan_scan,
+			  os_orphan_scan_work.work);
+	osb = os->os_osb;
+
+	mutex_lock(&os->os_lock);
+	ocfs2_queue_orphan_scan(osb);
+	schedule_delayed_work(&os->os_orphan_scan_work,
+			      ocfs2_orphan_scan_timeout());
+	mutex_unlock(&os->os_lock);
+}
+
+void ocfs2_orphan_scan_stop(struct ocfs2_super *osb)
+{
+	struct ocfs2_orphan_scan *os;
+
+	os = &osb->osb_orphan_scan;
+	mutex_lock(&os->os_lock);
+	cancel_delayed_work(&os->os_orphan_scan_work);
+	mutex_unlock(&os->os_lock);
+}
+
+int ocfs2_orphan_scan_init(struct ocfs2_super *osb)
+{
+	struct ocfs2_orphan_scan *os;
+
+	os = &osb->osb_orphan_scan;
+	os->os_osb = osb;
+	os->os_count = 0;
+	os->os_scantime = CURRENT_TIME;
+	mutex_init(&os->os_lock);
+
+	INIT_DELAYED_WORK(&os->os_orphan_scan_work,
+			  ocfs2_orphan_scan_work);
+	schedule_delayed_work(&os->os_orphan_scan_work,
+			      ocfs2_orphan_scan_timeout());
+	return 0;
+}
+
 struct ocfs2_orphan_filldir_priv {
 	struct inode		*head;
 	struct ocfs2_super	*osb;
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index eb7b763..61045ee 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -144,6 +144,10 @@
 }
 
 /* Exported only for the journal struct init code in super.c. Do not call. */
+int ocfs2_orphan_scan_init(struct ocfs2_super *osb);
+void ocfs2_orphan_scan_stop(struct ocfs2_super *osb);
+void ocfs2_orphan_scan_exit(struct ocfs2_super *osb);
+
 void ocfs2_complete_recovery(struct work_struct *work);
 void ocfs2_wait_for_recovery(struct ocfs2_super *osb);
 
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 1386281..18c1d9e 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -47,6 +47,9 @@
 #include "ocfs2_fs.h"
 #include "ocfs2_lockid.h"
 
+/* For struct ocfs2_blockcheck_stats */
+#include "blockcheck.h"
+
 /* Most user visible OCFS2 inodes will have very few pieces of
  * metadata, but larger files (including bitmaps, etc) must be taken
  * into account when designing an access scheme. We allow a small
@@ -151,6 +154,16 @@
 #endif
 };
 
+struct ocfs2_orphan_scan {
+	struct mutex 		os_lock;
+	struct ocfs2_super 	*os_osb;
+	struct ocfs2_lock_res 	os_lockres;     /* lock to synchronize scans */
+	struct delayed_work 	os_orphan_scan_work;
+	struct timespec		os_scantime;  /* time this node ran the scan */
+	u32			os_count;      /* tracks node specific scans */
+	u32  			os_seqno;       /* tracks cluster wide scans */
+};
+
 struct ocfs2_dlm_debug {
 	struct kref d_refcnt;
 	struct dentry *d_locking_state;
@@ -295,6 +308,7 @@
 	struct ocfs2_dinode *local_alloc_copy;
 	struct ocfs2_quota_recovery *quota_rec;
 
+	struct ocfs2_blockcheck_stats osb_ecc_stats;
 	struct ocfs2_alloc_stats alloc_stats;
 	char dev_str[20];		/* "major,minor" of the device */
 
@@ -341,6 +355,8 @@
 	unsigned int			*osb_orphan_wipes;
 	wait_queue_head_t		osb_wipe_event;
 
+	struct ocfs2_orphan_scan	osb_orphan_scan;
+
 	/* used to protect metaecc calculation check of xattr. */
 	spinlock_t osb_xattr_lock;
 
diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h
index a53ce87..fcdba09 100644
--- a/fs/ocfs2/ocfs2_lockid.h
+++ b/fs/ocfs2/ocfs2_lockid.h
@@ -48,6 +48,7 @@
 	OCFS2_LOCK_TYPE_FLOCK,
 	OCFS2_LOCK_TYPE_QINFO,
 	OCFS2_LOCK_TYPE_NFS_SYNC,
+	OCFS2_LOCK_TYPE_ORPHAN_SCAN,
 	OCFS2_NUM_LOCK_TYPES
 };
 
@@ -85,6 +86,9 @@
 		case OCFS2_LOCK_TYPE_NFS_SYNC:
 			c = 'Y';
 			break;
+		case OCFS2_LOCK_TYPE_ORPHAN_SCAN:
+			c = 'P';
+			break;
 		default:
 			c = '\0';
 	}
@@ -104,6 +108,7 @@
 	[OCFS2_LOCK_TYPE_OPEN] = "Open",
 	[OCFS2_LOCK_TYPE_FLOCK] = "Flock",
 	[OCFS2_LOCK_TYPE_QINFO] = "Quota",
+	[OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan",
 };
 
 static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 1ed0f7c..edfa60c 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -421,6 +421,7 @@
 	OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes;
 	if (!dquot->dq_off) {	/* No real quota entry? */
 		/* Upgrade to exclusive lock for allocation */
+		ocfs2_qinfo_unlock(info, 0);
 		err = ocfs2_qinfo_lock(info, 1);
 		if (err < 0)
 			goto out_qlock;
@@ -435,7 +436,8 @@
 out_qlock:
 	if (ex)
 		ocfs2_qinfo_unlock(info, 1);
-	ocfs2_qinfo_unlock(info, 0);
+	else
+		ocfs2_qinfo_unlock(info, 0);
 out:
 	if (err < 0)
 		mlog_errno(err);
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 07deec5..5a460fa 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -444,10 +444,6 @@
 
 	mlog_entry("ino=%lu type=%u", (unsigned long)lqinode->i_ino, type);
 
-	status = ocfs2_lock_global_qf(oinfo, 1);
-	if (status < 0)
-		goto out;
-
 	list_for_each_entry_safe(rchunk, next, &(rec->r_list[type]), rc_list) {
 		chunk = rchunk->rc_chunk;
 		hbh = NULL;
@@ -480,12 +476,18 @@
 				     type);
 				goto out_put_bh;
 			}
+			status = ocfs2_lock_global_qf(oinfo, 1);
+			if (status < 0) {
+				mlog_errno(status);
+				goto out_put_dquot;
+			}
+
 			handle = ocfs2_start_trans(OCFS2_SB(sb),
 						   OCFS2_QSYNC_CREDITS);
 			if (IS_ERR(handle)) {
 				status = PTR_ERR(handle);
 				mlog_errno(status);
-				goto out_put_dquot;
+				goto out_drop_lock;
 			}
 			mutex_lock(&sb_dqopt(sb)->dqio_mutex);
 			spin_lock(&dq_data_lock);
@@ -523,6 +525,8 @@
 out_commit:
 			mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
 			ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out_drop_lock:
+			ocfs2_unlock_global_qf(oinfo, 1);
 out_put_dquot:
 			dqput(dquot);
 out_put_bh:
@@ -537,8 +541,6 @@
 		if (status < 0)
 			break;
 	}
-	ocfs2_unlock_global_qf(oinfo, 1);
-out:
 	if (status < 0)
 		free_recovery_list(&(rec->r_list[type]));
 	mlog_exit(status);
@@ -655,6 +657,9 @@
 	struct ocfs2_quota_recovery *rec;
 	int locked = 0;
 
+	/* We don't need the lock and we have to acquire quota file locks
+	 * which will later depend on this lock */
+	mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
 	info->dqi_maxblimit = 0x7fffffffffffffffLL;
 	info->dqi_maxilimit = 0x7fffffffffffffffLL;
 	oinfo = kmalloc(sizeof(struct ocfs2_mem_dqinfo), GFP_NOFS);
@@ -733,6 +738,7 @@
 		goto out_err;
 	}
 
+	mutex_lock(&sb_dqopt(sb)->dqio_mutex);
 	return 0;
 out_err:
 	if (oinfo) {
@@ -746,6 +752,7 @@
 		kfree(oinfo);
 	}
 	brelse(bh);
+	mutex_lock(&sb_dqopt(sb)->dqio_mutex);
 	return -1;
 }
 
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 201b40a..d33767f 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -119,10 +119,12 @@
 static int ocfs2_check_volume(struct ocfs2_super *osb);
 static int ocfs2_verify_volume(struct ocfs2_dinode *di,
 			       struct buffer_head *bh,
-			       u32 sectsize);
+			       u32 sectsize,
+			       struct ocfs2_blockcheck_stats *stats);
 static int ocfs2_initialize_super(struct super_block *sb,
 				  struct buffer_head *bh,
-				  int sector_size);
+				  int sector_size,
+				  struct ocfs2_blockcheck_stats *stats);
 static int ocfs2_get_sector(struct super_block *sb,
 			    struct buffer_head **bh,
 			    int block,
@@ -207,6 +209,7 @@
 	int i;
 	struct ocfs2_cluster_connection *cconn = osb->cconn;
 	struct ocfs2_recovery_map *rm = osb->recovery_map;
+	struct ocfs2_orphan_scan *os;
 
 	out += snprintf(buf + out, len - out,
 			"%10s => Id: %-s  Uuid: %-s  Gen: 0x%X  Label: %-s\n",
@@ -308,6 +311,13 @@
 				i, osb->slot_recovery_generations[i]);
 	}
 
+	os = &osb->osb_orphan_scan;
+	out += snprintf(buf + out, len - out, "Orphan Scan=> ");
+	out += snprintf(buf + out, len - out, "Local: %u  Global: %u ",
+			os->os_count, os->os_seqno);
+	out += snprintf(buf + out, len - out, " Last Scan: %lu seconds ago\n",
+			(get_seconds() - os->os_scantime.tv_sec));
+
 	return out;
 }
 
@@ -693,7 +703,8 @@
 
 static int ocfs2_sb_probe(struct super_block *sb,
 			  struct buffer_head **bh,
-			  int *sector_size)
+			  int *sector_size,
+			  struct ocfs2_blockcheck_stats *stats)
 {
 	int status, tmpstat;
 	struct ocfs1_vol_disk_hdr *hdr;
@@ -759,7 +770,8 @@
 			goto bail;
 		}
 		di = (struct ocfs2_dinode *) (*bh)->b_data;
-		status = ocfs2_verify_volume(di, *bh, blksize);
+		memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats));
+		status = ocfs2_verify_volume(di, *bh, blksize, stats);
 		if (status >= 0)
 			goto bail;
 		brelse(*bh);
@@ -965,6 +977,7 @@
 	struct ocfs2_super *osb = NULL;
 	struct buffer_head *bh = NULL;
 	char nodestr[8];
+	struct ocfs2_blockcheck_stats stats;
 
 	mlog_entry("%p, %p, %i", sb, data, silent);
 
@@ -974,13 +987,13 @@
 	}
 
 	/* probe for superblock */
-	status = ocfs2_sb_probe(sb, &bh, &sector_size);
+	status = ocfs2_sb_probe(sb, &bh, &sector_size, &stats);
 	if (status < 0) {
 		mlog(ML_ERROR, "superblock probe failed!\n");
 		goto read_super_error;
 	}
 
-	status = ocfs2_initialize_super(sb, bh, sector_size);
+	status = ocfs2_initialize_super(sb, bh, sector_size, &stats);
 	osb = OCFS2_SB(sb);
 	if (status < 0) {
 		mlog_errno(status);
@@ -1090,6 +1103,18 @@
 		goto read_super_error;
 	}
 
+	if (ocfs2_meta_ecc(osb)) {
+		status = ocfs2_blockcheck_stats_debugfs_install(
+						&osb->osb_ecc_stats,
+						osb->osb_debug_root);
+		if (status) {
+			mlog(ML_ERROR,
+			     "Unable to create blockcheck statistics "
+			     "files\n");
+			goto read_super_error;
+		}
+	}
+
 	status = ocfs2_mount_volume(sb);
 	if (osb->root_inode)
 		inode = igrab(osb->root_inode);
@@ -1760,13 +1785,8 @@
 	}
 
 	status = ocfs2_truncate_log_init(osb);
-	if (status < 0) {
+	if (status < 0)
 		mlog_errno(status);
-		goto leave;
-	}
-
-	if (ocfs2_mount_local(osb))
-		goto leave;
 
 leave:
 	if (unlock_super)
@@ -1796,6 +1816,8 @@
 
 	ocfs2_truncate_log_shutdown(osb);
 
+	ocfs2_orphan_scan_stop(osb);
+
 	/* This will disable recovery and flush any recovery work. */
 	ocfs2_recovery_exit(osb);
 
@@ -1833,6 +1855,7 @@
 	if (osb->cconn)
 		ocfs2_dlm_shutdown(osb, hangup_needed);
 
+	ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats);
 	debugfs_remove(osb->osb_debug_root);
 
 	if (hangup_needed)
@@ -1880,7 +1903,8 @@
 
 static int ocfs2_initialize_super(struct super_block *sb,
 				  struct buffer_head *bh,
-				  int sector_size)
+				  int sector_size,
+				  struct ocfs2_blockcheck_stats *stats)
 {
 	int status;
 	int i, cbits, bbits;
@@ -1939,6 +1963,9 @@
 	atomic_set(&osb->alloc_stats.bg_allocs, 0);
 	atomic_set(&osb->alloc_stats.bg_extends, 0);
 
+	/* Copy the blockcheck stats from the superblock probe */
+	osb->osb_ecc_stats = *stats;
+
 	ocfs2_init_node_maps(osb);
 
 	snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u",
@@ -1951,6 +1978,13 @@
 		goto bail;
 	}
 
+	status = ocfs2_orphan_scan_init(osb);
+	if (status) {
+		mlog(ML_ERROR, "Unable to initialize delayed orphan scan\n");
+		mlog_errno(status);
+		goto bail;
+	}
+
 	init_waitqueue_head(&osb->checkpoint_event);
 	atomic_set(&osb->needs_checkpoint, 0);
 
@@ -2169,7 +2203,8 @@
  */
 static int ocfs2_verify_volume(struct ocfs2_dinode *di,
 			       struct buffer_head *bh,
-			       u32 blksz)
+			       u32 blksz,
+			       struct ocfs2_blockcheck_stats *stats)
 {
 	int status = -EAGAIN;
 
@@ -2182,7 +2217,8 @@
 		    OCFS2_FEATURE_INCOMPAT_META_ECC) {
 			status = ocfs2_block_check_validate(bh->b_data,
 							    bh->b_size,
-							    &di->i_check);
+							    &di->i_check,
+							    stats);
 			if (status)
 				goto out;
 		}
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 1563101..ba320e2 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -3154,7 +3154,7 @@
 		     le32_to_cpu(bucket_xh(bucket)->xh_entries[0].xe_name_hash));
 		if (func) {
 			ret = func(inode, bucket, para);
-			if (ret)
+			if (ret && ret != -ERANGE)
 				mlog_errno(ret);
 			/* Fall through to bucket_relse() */
 		}
@@ -3261,7 +3261,8 @@
 						  ocfs2_list_xattr_bucket,
 						  &xl);
 		if (ret) {
-			mlog_errno(ret);
+			if (ret != -ERANGE)
+				mlog_errno(ret);
 			goto out;
 		}
 
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 3589eab..3260b73 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1937,6 +1937,9 @@
 	err  = bdi_init(&c->bdi);
 	if (err)
 		goto out_close;
+	err = bdi_register(&c->bdi, NULL, "ubifs");
+	if (err)
+		goto out_bdi;
 
 	err = ubifs_parse_options(c, data, 0);
 	if (err)
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 4db89e9..82ec6a3 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,7 +47,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20090320
+#define ACPI_CA_VERSION                 0x20090521
 
 #include "actypes.h"
 #include "actbl.h"
@@ -201,6 +201,8 @@
 acpi_status
 acpi_get_object_info(acpi_handle handle, struct acpi_buffer *return_buffer);
 
+acpi_status acpi_install_method(u8 *buffer);
+
 acpi_status
 acpi_get_next_object(acpi_object_type type,
 		     acpi_handle parent,
@@ -375,7 +377,7 @@
 acpi_status acpi_leave_sleep_state(u8 sleep_state);
 
 /*
- * Debug output
+ * Error/Warning output
  */
 void ACPI_INTERNAL_VAR_XFACE
 acpi_error(const char *module_name,
@@ -394,6 +396,9 @@
 acpi_info(const char *module_name,
 	  u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
 
+/*
+ * Debug output
+ */
 #ifdef ACPI_DEBUG_OUTPUT
 
 void ACPI_INTERNAL_VAR_XFACE
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index f555d927..37ba576 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -429,20 +429,12 @@
 
 /* Data manipulation */
 
-#define ACPI_LOWORD(l)                  ((u16)(u32)(l))
-#define ACPI_HIWORD(l)                  ((u16)((((u32)(l)) >> 16) & 0xFFFF))
-#define ACPI_LOBYTE(l)                  ((u8)(u16)(l))
-#define ACPI_HIBYTE(l)                  ((u8)((((u16)(l)) >> 8) & 0xFF))
-
-/* Full 64-bit integer must be available on both 32-bit and 64-bit platforms */
-
-struct acpi_integer_overlay {
-	u32 lo_dword;
-	u32 hi_dword;
-};
-
-#define ACPI_LODWORD(integer)           (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->lo_dword)
-#define ACPI_HIDWORD(integer)           (ACPI_CAST_PTR (struct acpi_integer_overlay, &integer)->hi_dword)
+#define ACPI_LOBYTE(integer)            ((u8)   (u16)(integer))
+#define ACPI_HIBYTE(integer)            ((u8) (((u16)(integer)) >> 8))
+#define ACPI_LOWORD(integer)            ((u16)  (u32)(integer))
+#define ACPI_HIWORD(integer)            ((u16)(((u32)(integer)) >> 16))
+#define ACPI_LODWORD(integer64)         ((u32)  (u64)(integer64))
+#define ACPI_HIDWORD(integer64)         ((u32)(((u64)(integer64)) >> 32))
 
 #define ACPI_SET_BIT(target,bit)        ((target) |= (bit))
 #define ACPI_CLEAR_BIT(target,bit)      ((target) &= ~(bit))
diff --git a/include/acpi/platform/acgcc.h b/include/acpi/platform/acgcc.h
index 8e2cdc5..935c5d7 100644
--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -62,4 +62,8 @@
  */
 #define ACPI_UNUSED_VAR __attribute__ ((unused))
 
+#ifdef _ANSI
+#define inline
+#endif
+
 #endif				/* __ACGCC_H__ */
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 6d49b2a..fcb8e4b 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -1,11 +1,11 @@
 /******************************************************************************
  *
- * Name: aclinux.h - OS specific defines, etc.
+ * Name: aclinux.h - OS specific defines, etc. for Linux
  *
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2008, Intel Corp.
+ * Copyright (C) 2000 - 2009, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,10 +44,13 @@
 #ifndef __ACLINUX_H__
 #define __ACLINUX_H__
 
+/* Common (in-kernel/user-space) ACPICA configuration */
+
 #define ACPI_USE_SYSTEM_CLIBRARY
 #define ACPI_USE_DO_WHILE_0
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 
+
 #ifdef __KERNEL__
 
 #include <linux/string.h>
@@ -63,15 +66,18 @@
 #include <linux/spinlock_types.h>
 #include <asm/current.h>
 
-/* Host-dependent types and defines */
+/* Host-dependent types and defines for in-kernel ACPICA */
 
 #define ACPI_MACHINE_WIDTH          BITS_PER_LONG
-#define acpi_cache_t                        struct kmem_cache
-#define acpi_spinlock                   spinlock_t *
 #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
 #define strtoul                     simple_strtoul
 
-#else				/* !__KERNEL__ */
+#define acpi_cache_t                        struct kmem_cache
+#define acpi_spinlock                       spinlock_t *
+#define acpi_cpu_flags                      unsigned long
+#define acpi_thread_id                      struct task_struct *
+
+#else /* !__KERNEL__ */
 
 #include <stdarg.h>
 #include <string.h>
@@ -79,6 +85,11 @@
 #include <ctype.h>
 #include <unistd.h>
 
+/* Host-dependent types and defines for user-space ACPICA */
+
+#define ACPI_FLUSH_CPU_CACHE()
+#define acpi_thread_id                      pthread_t
+
 #if defined(__ia64__) || defined(__x86_64__)
 #define ACPI_MACHINE_WIDTH          64
 #define COMPILER_DEPENDENT_INT64    long
@@ -94,17 +105,17 @@
 #define __cdecl
 #endif
 
-#define ACPI_FLUSH_CPU_CACHE()
-#endif				/* __KERNEL__ */
+#endif /* __KERNEL__ */
 
 /* Linux uses GCC */
 
 #include "acgcc.h"
 
-#define acpi_cpu_flags unsigned long
 
-#define acpi_thread_id struct task_struct *
-
+#ifdef __KERNEL__
+/*
+ * Overrides for in-kernel ACPICA
+ */
 static inline acpi_thread_id acpi_os_get_thread_id(void)
 {
 	return current;
@@ -119,30 +130,32 @@
 #include <acpi/actypes.h>
 static inline void *acpi_os_allocate(acpi_size size)
 {
-	return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
+	return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 }
+
 static inline void *acpi_os_allocate_zeroed(acpi_size size)
 {
-	return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
+	return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 }
 
 static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
 {
 	return kmem_cache_zalloc(cache,
-				 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
+		irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 }
 
-#define ACPI_ALLOCATE(a)	acpi_os_allocate(a)
-#define ACPI_ALLOCATE_ZEROED(a)	acpi_os_allocate_zeroed(a)
-#define ACPI_FREE(a)		kfree(a)
+#define ACPI_ALLOCATE(a)        acpi_os_allocate(a)
+#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()		\
-	do {				\
-		if (!irqs_disabled())	\
-			cond_resched();	\
+/* Used within ACPICA to show where it is safe to preempt execution */
+
+#define ACPI_PREEMPTION_POINT() \
+	do { \
+		if (!irqs_disabled()) \
+			cond_resched(); \
 	} while (0)
 
-#endif				/* __ACLINUX_H__ */
+#endif /* __KERNEL__ */
+
+#endif /* __ACLINUX_H__ */
diff --git a/include/asm-generic/atomic64.h b/include/asm-generic/atomic64.h
new file mode 100644
index 0000000..b18ce4f
--- /dev/null
+++ b/include/asm-generic/atomic64.h
@@ -0,0 +1,42 @@
+/*
+ * Generic implementation of 64-bit atomics using spinlocks,
+ * useful on processors that don't have 64-bit atomic instructions.
+ *
+ * Copyright © 2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_GENERIC_ATOMIC64_H
+#define _ASM_GENERIC_ATOMIC64_H
+
+typedef struct {
+	long long counter;
+} atomic64_t;
+
+#define ATOMIC64_INIT(i)	{ (i) }
+
+extern long long atomic64_read(const atomic64_t *v);
+extern void	 atomic64_set(atomic64_t *v, long long i);
+extern void	 atomic64_add(long long a, atomic64_t *v);
+extern long long atomic64_add_return(long long a, atomic64_t *v);
+extern void	 atomic64_sub(long long a, atomic64_t *v);
+extern long long atomic64_sub_return(long long a, atomic64_t *v);
+extern long long atomic64_dec_if_positive(atomic64_t *v);
+extern long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n);
+extern long long atomic64_xchg(atomic64_t *v, long long new);
+extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);
+
+#define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
+#define atomic64_inc(v)			atomic64_add(1LL, (v))
+#define atomic64_inc_return(v)		atomic64_add_return(1LL, (v))
+#define atomic64_inc_and_test(v) 	(atomic64_inc_return(v) == 0)
+#define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
+#define atomic64_dec(v)			atomic64_sub(1LL, (v))
+#define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
+#define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
+#define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)
+
+#endif  /*  _ASM_GENERIC_ATOMIC64_H  */
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 12737be..2a04eb5 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -590,6 +590,11 @@
 	bl->head = bl2->head;
 }
 
+static inline struct bio *bio_list_peek(struct bio_list *bl)
+{
+	return bl->head;
+}
+
 static inline struct bio *bio_list_pop(struct bio_list *bl)
 {
 	struct bio *bio = bl->head;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0b1a6ca..8963d914 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -926,6 +926,7 @@
 				       unsigned int alignment);
 extern void blk_queue_io_min(struct request_queue *q, unsigned int min);
 extern void blk_queue_io_opt(struct request_queue *q, unsigned int opt);
+extern void blk_set_default_limits(struct queue_limits *lim);
 extern int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 			    sector_t offset);
 extern void disk_stack_limits(struct gendisk *disk, struct block_device *bdev,
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 99b7aad..c5a71c3 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -97,12 +97,14 @@
 #define	KERN_INFO	"<6>"	/* informational			*/
 #define	KERN_DEBUG	"<7>"	/* debug-level messages			*/
 
+/* Use the default kernel loglevel */
+#define KERN_DEFAULT	"<d>"
 /*
  * Annotation for a "continued" line of log printout (only done after a
  * line that had no enclosing \n). Only to be used by core/arch code
  * during early bootup (a continued line is not SMP-safe otherwise).
  */
-#define	KERN_CONT	""
+#define	KERN_CONT	"<c>"
 
 extern int console_printk[];
 
diff --git a/include/linux/mg_disk.h b/include/linux/mg_disk.h
new file mode 100644
index 0000000..e11f4d9
--- /dev/null
+++ b/include/linux/mg_disk.h
@@ -0,0 +1,45 @@
+/*
+ *  include/linux/mg_disk.c
+ *
+ *  Private data for mflash platform driver
+ *
+ * (c) 2008 mGine Co.,LTD
+ * (c) 2008 unsik Kim <donari75@gmail.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#ifndef __MG_DISK_H__
+#define __MG_DISK_H__
+
+/* name for platform device */
+#define MG_DEV_NAME "mg_disk"
+
+/* names of GPIO resource */
+#define MG_RST_PIN	"mg_rst"
+/* except MG_BOOT_DEV, reset-out pin should be assigned */
+#define MG_RSTOUT_PIN	"mg_rstout"
+
+/* device attribution */
+/* use mflash as boot device */
+#define MG_BOOT_DEV		(1 << 0)
+/* use mflash as storage device */
+#define MG_STORAGE_DEV		(1 << 1)
+/* same as MG_STORAGE_DEV, but bootloader already done reset sequence */
+#define MG_STORAGE_DEV_SKIP_RST	(1 << 2)
+
+/* private driver data */
+struct mg_drv_data {
+	/* disk resource */
+	u32 use_polling;
+
+	/* device attribution */
+	u32 dev_attr;
+
+	/* internally used */
+	void *host;
+};
+
+#endif
diff --git a/kernel/module.c b/kernel/module.c
index e4ab36c..215aaab 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2899,7 +2899,7 @@
 	struct module *mod;
 	char buf[8];
 
-	printk("Modules linked in:");
+	printk(KERN_DEFAULT "Modules linked in:");
 	/* Most callers should already have preempt disabled, but make sure */
 	preempt_disable();
 	list_for_each_entry_rcu(mod, &modules, list)
diff --git a/kernel/printk.c b/kernel/printk.c
index 5052b54..b4d97b5 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -687,20 +687,35 @@
 				  sizeof(printk_buf) - printed_len, fmt, args);
 
 
+	p = printk_buf;
+
+	/* Do we have a loglevel in the string? */
+	if (p[0] == '<') {
+		unsigned char c = p[1];
+		if (c && p[2] == '>') {
+			switch (c) {
+			case '0' ... '7': /* loglevel */
+				current_log_level = c - '0';
+			/* Fallthrough - make sure we're on a new line */
+			case 'd': /* KERN_DEFAULT */
+				if (!new_text_line) {
+					emit_log_char('\n');
+					new_text_line = 1;
+				}
+			/* Fallthrough - skip the loglevel */
+			case 'c': /* KERN_CONT */
+				p += 3;
+				break;
+			}
+		}
+	}
+
 	/*
 	 * Copy the output into log_buf.  If the caller didn't provide
 	 * appropriate log level tags, we insert them here
 	 */
-	for (p = printk_buf; *p; p++) {
+	for ( ; *p; p++) {
 		if (new_text_line) {
-			/* If a token, set current_log_level and skip over */
-			if (p[0] == '<' && p[1] >= '0' && p[1] <= '7' &&
-			    p[2] == '>') {
-				current_log_level = p[1] - '0';
-				p += 3;
-				printed_len -= 3;
-			}
-
 			/* Always output the token */
 			emit_log_char('<');
 			emit_log_char(current_log_level + '0');
diff --git a/lib/Kconfig b/lib/Kconfig
index 9960be0..bb1326d 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -194,4 +194,10 @@
 config NLATTR
 	bool
 
+#
+# Generic 64-bit atomic support is selected if needed
+#
+config GENERIC_ATOMIC64
+       bool
+
 endmenu
diff --git a/lib/Makefile b/lib/Makefile
index 34c5c0e..8e9bcf9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -95,6 +95,8 @@
 
 obj-$(CONFIG_GENERIC_CSUM) += checksum.o
 
+obj-$(CONFIG_GENERIC_ATOMIC64) += atomic64.o
+
 hostprogs-y	:= gen_crc32table
 clean-files	:= crc32table.h
 
diff --git a/lib/atomic64.c b/lib/atomic64.c
new file mode 100644
index 0000000..c5e7255
--- /dev/null
+++ b/lib/atomic64.c
@@ -0,0 +1,175 @@
+/*
+ * Generic implementation of 64-bit atomics using spinlocks,
+ * useful on processors that don't have 64-bit atomic instructions.
+ *
+ * Copyright © 2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/types.h>
+#include <linux/cache.h>
+#include <linux/spinlock.h>
+#include <linux/init.h>
+#include <asm/atomic.h>
+
+/*
+ * We use a hashed array of spinlocks to provide exclusive access
+ * to each atomic64_t variable.  Since this is expected to used on
+ * systems with small numbers of CPUs (<= 4 or so), we use a
+ * relatively small array of 16 spinlocks to avoid wasting too much
+ * memory on the spinlock array.
+ */
+#define NR_LOCKS	16
+
+/*
+ * Ensure each lock is in a separate cacheline.
+ */
+static union {
+	spinlock_t lock;
+	char pad[L1_CACHE_BYTES];
+} atomic64_lock[NR_LOCKS] __cacheline_aligned_in_smp;
+
+static inline spinlock_t *lock_addr(const atomic64_t *v)
+{
+	unsigned long addr = (unsigned long) v;
+
+	addr >>= L1_CACHE_SHIFT;
+	addr ^= (addr >> 8) ^ (addr >> 16);
+	return &atomic64_lock[addr & (NR_LOCKS - 1)].lock;
+}
+
+long long atomic64_read(const atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+void atomic64_set(atomic64_t *v, long long i)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+
+	spin_lock_irqsave(lock, flags);
+	v->counter = i;
+	spin_unlock_irqrestore(lock, flags);
+}
+
+void atomic64_add(long long a, atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+
+	spin_lock_irqsave(lock, flags);
+	v->counter += a;
+	spin_unlock_irqrestore(lock, flags);
+}
+
+long long atomic64_add_return(long long a, atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter += a;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+void atomic64_sub(long long a, atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+
+	spin_lock_irqsave(lock, flags);
+	v->counter -= a;
+	spin_unlock_irqrestore(lock, flags);
+}
+
+long long atomic64_sub_return(long long a, atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter -= a;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+long long atomic64_dec_if_positive(atomic64_t *v)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter - 1;
+	if (val >= 0)
+		v->counter = val;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter;
+	if (val == o)
+		v->counter = n;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+long long atomic64_xchg(atomic64_t *v, long long new)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	long long val;
+
+	spin_lock_irqsave(lock, flags);
+	val = v->counter;
+	v->counter = new;
+	spin_unlock_irqrestore(lock, flags);
+	return val;
+}
+
+int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+{
+	unsigned long flags;
+	spinlock_t *lock = lock_addr(v);
+	int ret = 1;
+
+	spin_lock_irqsave(lock, flags);
+	if (v->counter != u) {
+		v->counter += a;
+		ret = 0;
+	}
+	spin_unlock_irqrestore(lock, flags);
+	return ret;
+}
+
+static int init_atomic64_lock(void)
+{
+	int i;
+
+	for (i = 0; i < NR_LOCKS; ++i)
+		spin_lock_init(&atomic64_lock[i].lock);
+	return 0;
+}
+
+pure_initcall(init_atomic64_lock);
diff --git a/mm/Kconfig b/mm/Kconfig
index 71830ba..6f4610a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -128,11 +128,11 @@
 config MEMORY_HOTPLUG
 	bool "Allow for memory hot-add"
 	depends on SPARSEMEM || X86_64_ACPI_NUMA
-	depends on HOTPLUG && !HIBERNATION && ARCH_ENABLE_MEMORY_HOTPLUG
+	depends on HOTPLUG && !(HIBERNATION && !S390) && ARCH_ENABLE_MEMORY_HOTPLUG
 	depends on (IA64 || X86 || PPC64 || SUPERH || S390)
 
 comment "Memory hotplug is currently incompatible with Software Suspend"
-	depends on SPARSEMEM && HOTPLUG && HIBERNATION
+	depends on SPARSEMEM && HOTPLUG && HIBERNATION && !S390
 
 config MEMORY_HOTPLUG_SPARSE
 	def_bool y
diff --git a/mm/bounce.c b/mm/bounce.c
index 4ebe3ea..a2b76a5 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -13,7 +13,6 @@
 #include <linux/init.h>
 #include <linux/hash.h>
 #include <linux/highmem.h>
-#include <linux/blktrace_api.h>
 #include <asm/tlbflush.h>
 
 #include <trace/events/block.h>
diff --git a/mm/highmem.c b/mm/highmem.c
index 68eb1d9..25878cc 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -26,7 +26,6 @@
 #include <linux/init.h>
 #include <linux/hash.h>
 #include <linux/highmem.h>
-#include <linux/blktrace_api.h>
 #include <asm/tlbflush.h>
 
 /*
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index a9b3a6f..656cbd1 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1,11 +1,12 @@
 /*
- *  linux/net/iucv/af_iucv.c
- *
  *  IUCV protocol stack for Linux on zSeries
  *
- *  Copyright 2006 IBM Corporation
+ *  Copyright IBM Corp. 2006, 2009
  *
  *  Author(s):	Jennifer Hunt <jenhunt@us.ibm.com>
+ *		Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ *  PM functions:
+ *		Ursula Braun <ursula.braun@de.ibm.com>
  */
 
 #define KMSG_COMPONENT "af_iucv"
@@ -90,6 +91,122 @@
        memcpy(&dst[8], src, 8);
 }
 
+static int afiucv_pm_prepare(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_prepare\n");
+#endif
+	return 0;
+}
+
+static void afiucv_pm_complete(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_complete\n");
+#endif
+	return;
+}
+
+/**
+ * afiucv_pm_freeze() - Freeze PM callback
+ * @dev:	AFIUCV dummy device
+ *
+ * Sever all established IUCV communication pathes
+ */
+static int afiucv_pm_freeze(struct device *dev)
+{
+	struct iucv_sock *iucv;
+	struct sock *sk;
+	struct hlist_node *node;
+	int err = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_freeze\n");
+#endif
+	read_lock(&iucv_sk_list.lock);
+	sk_for_each(sk, node, &iucv_sk_list.head) {
+		iucv = iucv_sk(sk);
+		skb_queue_purge(&iucv->send_skb_q);
+		skb_queue_purge(&iucv->backlog_skb_q);
+		switch (sk->sk_state) {
+		case IUCV_SEVERED:
+		case IUCV_DISCONN:
+		case IUCV_CLOSING:
+		case IUCV_CONNECTED:
+			if (iucv->path) {
+				err = iucv_path_sever(iucv->path, NULL);
+				iucv_path_free(iucv->path);
+				iucv->path = NULL;
+			}
+			break;
+		case IUCV_OPEN:
+		case IUCV_BOUND:
+		case IUCV_LISTEN:
+		case IUCV_CLOSED:
+		default:
+			break;
+		}
+	}
+	read_unlock(&iucv_sk_list.lock);
+	return err;
+}
+
+/**
+ * afiucv_pm_restore_thaw() - Thaw and restore PM callback
+ * @dev:	AFIUCV dummy device
+ *
+ * socket clean up after freeze
+ */
+static int afiucv_pm_restore_thaw(struct device *dev)
+{
+	struct iucv_sock *iucv;
+	struct sock *sk;
+	struct hlist_node *node;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "afiucv_pm_restore_thaw\n");
+#endif
+	read_lock(&iucv_sk_list.lock);
+	sk_for_each(sk, node, &iucv_sk_list.head) {
+		iucv = iucv_sk(sk);
+		switch (sk->sk_state) {
+		case IUCV_CONNECTED:
+			sk->sk_err = EPIPE;
+			sk->sk_state = IUCV_DISCONN;
+			sk->sk_state_change(sk);
+			break;
+		case IUCV_DISCONN:
+		case IUCV_SEVERED:
+		case IUCV_CLOSING:
+		case IUCV_LISTEN:
+		case IUCV_BOUND:
+		case IUCV_OPEN:
+		default:
+			break;
+		}
+	}
+	read_unlock(&iucv_sk_list.lock);
+	return 0;
+}
+
+static struct dev_pm_ops afiucv_pm_ops = {
+	.prepare = afiucv_pm_prepare,
+	.complete = afiucv_pm_complete,
+	.freeze = afiucv_pm_freeze,
+	.thaw = afiucv_pm_restore_thaw,
+	.restore = afiucv_pm_restore_thaw,
+};
+
+static struct device_driver af_iucv_driver = {
+	.owner = THIS_MODULE,
+	.name = "afiucv",
+	.bus  = &iucv_bus,
+	.pm   = &afiucv_pm_ops,
+};
+
+/* dummy device used as trigger for PM functions */
+static struct device *af_iucv_dev;
+
 /**
  * iucv_msg_length() - Returns the length of an iucv message.
  * @msg:	Pointer to struct iucv_message, MUST NOT be NULL
@@ -1556,8 +1673,30 @@
 	err = sock_register(&iucv_sock_family_ops);
 	if (err)
 		goto out_proto;
+	/* establish dummy device */
+	err = driver_register(&af_iucv_driver);
+	if (err)
+		goto out_sock;
+	af_iucv_dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+	if (!af_iucv_dev) {
+		err = -ENOMEM;
+		goto out_driver;
+	}
+	dev_set_name(af_iucv_dev, "af_iucv");
+	af_iucv_dev->bus = &iucv_bus;
+	af_iucv_dev->parent = iucv_root;
+	af_iucv_dev->release = (void (*)(struct device *))kfree;
+	af_iucv_dev->driver = &af_iucv_driver;
+	err = device_register(af_iucv_dev);
+	if (err)
+		goto out_driver;
+
 	return 0;
 
+out_driver:
+	driver_unregister(&af_iucv_driver);
+out_sock:
+	sock_unregister(PF_IUCV);
 out_proto:
 	proto_unregister(&iucv_proto);
 out_iucv:
@@ -1568,6 +1707,8 @@
 
 static void __exit afiucv_exit(void)
 {
+	device_unregister(af_iucv_dev);
+	driver_unregister(&af_iucv_driver);
 	sock_unregister(PF_IUCV);
 	proto_unregister(&iucv_proto);
 	iucv_unregister(&af_iucv_handler, 0);
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index 61e8038..c833481d 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1,7 +1,8 @@
 /*
  * IUCV base infrastructure.
  *
- * Copyright 2001, 2006 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ * Copyright IBM Corp. 2001, 2009
+ *
  * Author(s):
  *    Original source:
  *	Alan Altmark (Alan_Altmark@us.ibm.com)	Sept. 2000
@@ -10,6 +11,8 @@
  *	Fritz Elfert (elfert@de.ibm.com, felfert@millenux.com)
  *    Rewritten for af_iucv:
  *	Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *    PM functions:
+ *	Ursula Braun (ursula.braun@de.ibm.com)
  *
  * Documentation used:
  *    The original source
@@ -45,6 +48,7 @@
 #include <linux/err.h>
 #include <linux/device.h>
 #include <linux/cpu.h>
+#include <linux/reboot.h>
 #include <net/iucv/iucv.h>
 #include <asm/atomic.h>
 #include <asm/ebcdic.h>
@@ -75,9 +79,24 @@
 	return 0;
 }
 
+static int iucv_pm_prepare(struct device *);
+static void iucv_pm_complete(struct device *);
+static int iucv_pm_freeze(struct device *);
+static int iucv_pm_thaw(struct device *);
+static int iucv_pm_restore(struct device *);
+
+static struct dev_pm_ops iucv_pm_ops = {
+	.prepare = iucv_pm_prepare,
+	.complete = iucv_pm_complete,
+	.freeze = iucv_pm_freeze,
+	.thaw = iucv_pm_thaw,
+	.restore = iucv_pm_restore,
+};
+
 struct bus_type iucv_bus = {
 	.name = "iucv",
 	.match = iucv_bus_match,
+	.pm = &iucv_pm_ops,
 };
 EXPORT_SYMBOL(iucv_bus);
 
@@ -147,6 +166,7 @@
 	IUCV_RESUME = 14,
 	IUCV_SEVER = 15,
 	IUCV_SETMASK = 16,
+	IUCV_SETCONTROLMASK = 17,
 };
 
 /*
@@ -364,6 +384,18 @@
 	parm->set_mask.ipmask = 0xf8;
 	iucv_call_b2f0(IUCV_SETMASK, parm);
 
+	/*
+	 * Enable all iucv control interrupts.
+	 * ipmask contains bits for the different interrupts
+	 *	0x80 - Flag to allow pending connections interrupts
+	 *	0x40 - Flag to allow connection complete interrupts
+	 *	0x20 - Flag to allow connection severed interrupts
+	 *	0x10 - Flag to allow connection quiesced interrupts
+	 *	0x08 - Flag to allow connection resumed interrupts
+	 */
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0xf8;
+	iucv_call_b2f0(IUCV_SETCONTROLMASK, parm);
 	/* Set indication that iucv interrupts are allowed for this cpu. */
 	cpu_set(cpu, iucv_irq_cpumask);
 }
@@ -389,6 +421,31 @@
 }
 
 /**
+ * iucv_block_cpu_almost
+ * @data: unused
+ *
+ * Allow connection-severed interrupts only on this cpu.
+ */
+static void iucv_block_cpu_almost(void *data)
+{
+	int cpu = smp_processor_id();
+	union iucv_param *parm;
+
+	/* Allow iucv control interrupts only */
+	parm = iucv_param_irq[cpu];
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0x08;
+	iucv_call_b2f0(IUCV_SETMASK, parm);
+	/* Allow iucv-severed interrupt only */
+	memset(parm, 0, sizeof(union iucv_param));
+	parm->set_mask.ipmask = 0x20;
+	iucv_call_b2f0(IUCV_SETCONTROLMASK, parm);
+
+	/* Clear indication that iucv interrupts are allowed for this cpu. */
+	cpu_clear(cpu, iucv_irq_cpumask);
+}
+
+/**
  * iucv_declare_cpu
  * @data: unused
  *
@@ -758,6 +815,28 @@
 }
 EXPORT_SYMBOL(iucv_unregister);
 
+static int iucv_reboot_event(struct notifier_block *this,
+			     unsigned long event, void *ptr)
+{
+	int i, rc;
+
+	get_online_cpus();
+	on_each_cpu(iucv_block_cpu, NULL, 1);
+	preempt_disable();
+	for (i = 0; i < iucv_max_pathid; i++) {
+		if (iucv_path_table[i])
+			rc = iucv_sever_pathid(i, NULL);
+	}
+	preempt_enable();
+	put_online_cpus();
+	iucv_disable();
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block iucv_reboot_notifier = {
+	.notifier_call = iucv_reboot_event,
+};
+
 /**
  * iucv_path_accept
  * @path: address of iucv path structure
@@ -777,6 +856,10 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	/* Prepare parameter block. */
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
@@ -792,6 +875,7 @@
 		path->msglim = parm->ctrl.ipmsglim;
 		path->flags = parm->ctrl.ipflags1;
 	}
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -821,6 +905,10 @@
 
 	spin_lock_bh(&iucv_table_lock);
 	iucv_cleanup_queue();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->ctrl.ipmsglim = path->msglim;
@@ -855,6 +943,7 @@
 			rc = -EIO;
 		}
 	}
+out:
 	spin_unlock_bh(&iucv_table_lock);
 	return rc;
 }
@@ -876,12 +965,17 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (userdata)
 		memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
 	parm->ctrl.ippathid = path->pathid;
 	rc = iucv_call_b2f0(IUCV_QUIESCE, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -903,12 +997,17 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (userdata)
 		memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
 	parm->ctrl.ippathid = path->pathid;
 	rc = iucv_call_b2f0(IUCV_RESUME, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -927,6 +1026,10 @@
 	int rc;
 
 	preempt_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	if (iucv_active_cpu != smp_processor_id())
 		spin_lock_bh(&iucv_table_lock);
 	rc = iucv_sever_pathid(path->pathid, userdata);
@@ -934,6 +1037,7 @@
 	list_del_init(&path->list);
 	if (iucv_active_cpu != smp_processor_id())
 		spin_unlock_bh(&iucv_table_lock);
+out:
 	preempt_enable();
 	return rc;
 }
@@ -956,6 +1060,10 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->purge.ippathid = path->pathid;
@@ -967,6 +1075,7 @@
 		msg->audit = (*(u32 *) &parm->purge.ipaudit) >> 8;
 		msg->tag = parm->purge.ipmsgtag;
 	}
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1043,6 +1152,10 @@
 	if (msg->flags & IUCV_IPRMDATA)
 		return iucv_message_receive_iprmdata(path, msg, flags,
 						     buffer, size, residual);
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->db.ipbfadr1 = (u32)(addr_t) buffer;
@@ -1058,6 +1171,7 @@
 		if (residual)
 			*residual = parm->db.ipbfln1f;
 	}
+out:
 	return rc;
 }
 EXPORT_SYMBOL(__iucv_message_receive);
@@ -1111,6 +1225,10 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	parm->db.ippathid = path->pathid;
@@ -1118,6 +1236,7 @@
 	parm->db.iptrgcls = msg->class;
 	parm->db.ipflags1 = (IUCV_IPTRGCLS | IUCV_IPFGMID | IUCV_IPFGPID);
 	rc = iucv_call_b2f0(IUCV_REJECT, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1145,6 +1264,10 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1162,6 +1285,7 @@
 		parm->db.iptrgcls = msg->class;
 	}
 	rc = iucv_call_b2f0(IUCV_REPLY, parm);
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1190,6 +1314,10 @@
 	union iucv_param *parm;
 	int rc;
 
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1212,6 +1340,7 @@
 	rc = iucv_call_b2f0(IUCV_SEND, parm);
 	if (!rc)
 		msg->id = parm->db.ipmsgid;
+out:
 	return rc;
 }
 EXPORT_SYMBOL(__iucv_message_send);
@@ -1272,6 +1401,10 @@
 	int rc;
 
 	local_bh_disable();
+	if (!cpu_isset(smp_processor_id(), iucv_buffer_cpumask)) {
+		rc = -EIO;
+		goto out;
+	}
 	parm = iucv_param[smp_processor_id()];
 	memset(parm, 0, sizeof(union iucv_param));
 	if (flags & IUCV_IPRMDATA) {
@@ -1297,6 +1430,7 @@
 	rc = iucv_call_b2f0(IUCV_SEND, parm);
 	if (!rc)
 		msg->id = parm->db.ipmsgid;
+out:
 	local_bh_enable();
 	return rc;
 }
@@ -1687,6 +1821,130 @@
 	spin_unlock(&iucv_queue_lock);
 }
 
+static int iucv_pm_prepare(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_INFO "iucv_pm_prepare\n");
+#endif
+	if (dev->driver && dev->driver->pm && dev->driver->pm->prepare)
+		rc = dev->driver->pm->prepare(dev);
+	return rc;
+}
+
+static void iucv_pm_complete(struct device *dev)
+{
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_INFO "iucv_pm_complete\n");
+#endif
+	if (dev->driver && dev->driver->pm && dev->driver->pm->complete)
+		dev->driver->pm->complete(dev);
+}
+
+/**
+ * iucv_path_table_empty() - determine if iucv path table is empty
+ *
+ * Returns 0 if there are still iucv pathes defined
+ *	   1 if there are no iucv pathes defined
+ */
+int iucv_path_table_empty(void)
+{
+	int i;
+
+	for (i = 0; i < iucv_max_pathid; i++) {
+		if (iucv_path_table[i])
+			return 0;
+	}
+	return 1;
+}
+
+/**
+ * iucv_pm_freeze() - Freeze PM callback
+ * @dev:	iucv-based device
+ *
+ * disable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ * shut down iucv, if no iucv-pathes are established anymore
+ */
+static int iucv_pm_freeze(struct device *dev)
+{
+	int cpu;
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_freeze\n");
+#endif
+	for_each_cpu_mask_nr(cpu, iucv_irq_cpumask)
+		smp_call_function_single(cpu, iucv_block_cpu_almost, NULL, 1);
+	if (dev->driver && dev->driver->pm && dev->driver->pm->freeze)
+		rc = dev->driver->pm->freeze(dev);
+	if (iucv_path_table_empty())
+		iucv_disable();
+	return rc;
+}
+
+/**
+ * iucv_pm_thaw() - Thaw PM callback
+ * @dev:	iucv-based device
+ *
+ * make iucv ready for use again: allocate path table, declare interrupt buffers
+ *				  and enable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ */
+static int iucv_pm_thaw(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_thaw\n");
+#endif
+	if (!iucv_path_table) {
+		rc = iucv_enable();
+		if (rc)
+			goto out;
+	}
+	if (cpus_empty(iucv_irq_cpumask)) {
+		if (iucv_nonsmp_handler)
+			/* enable interrupts on one cpu */
+			iucv_allow_cpu(NULL);
+		else
+			/* enable interrupts on all cpus */
+			iucv_setmask_mp();
+	}
+	if (dev->driver && dev->driver->pm && dev->driver->pm->thaw)
+		rc = dev->driver->pm->thaw(dev);
+out:
+	return rc;
+}
+
+/**
+ * iucv_pm_restore() - Restore PM callback
+ * @dev:	iucv-based device
+ *
+ * make iucv ready for use again: allocate path table, declare interrupt buffers
+ *				  and enable iucv interrupts
+ * invoke callback function of the iucv-based driver
+ */
+static int iucv_pm_restore(struct device *dev)
+{
+	int rc = 0;
+
+#ifdef CONFIG_PM_DEBUG
+	printk(KERN_WARNING "iucv_pm_restore %p\n", iucv_path_table);
+#endif
+	if (cpus_empty(iucv_irq_cpumask)) {
+		rc = iucv_query_maxconn();
+		rc = iucv_enable();
+		if (rc)
+			goto out;
+	}
+	if (dev->driver && dev->driver->pm && dev->driver->pm->restore)
+		rc = dev->driver->pm->restore(dev);
+out:
+	return rc;
+}
+
 /**
  * iucv_init
  *
@@ -1740,15 +1998,20 @@
 	rc = register_hotcpu_notifier(&iucv_cpu_notifier);
 	if (rc)
 		goto out_free;
+	rc = register_reboot_notifier(&iucv_reboot_notifier);
+	if (rc)
+		goto out_cpu;
 	ASCEBC(iucv_error_no_listener, 16);
 	ASCEBC(iucv_error_no_memory, 16);
 	ASCEBC(iucv_error_pathid, 16);
 	iucv_available = 1;
 	rc = bus_register(&iucv_bus);
 	if (rc)
-		goto out_cpu;
+		goto out_reboot;
 	return 0;
 
+out_reboot:
+	unregister_reboot_notifier(&iucv_reboot_notifier);
 out_cpu:
 	unregister_hotcpu_notifier(&iucv_cpu_notifier);
 out_free:
@@ -1783,6 +2046,7 @@
 	list_for_each_entry_safe(p, n, &iucv_work_queue, list)
 		kfree(p);
 	spin_unlock_irq(&iucv_queue_lock);
+	unregister_reboot_notifier(&iucv_reboot_notifier);
 	unregister_hotcpu_notifier(&iucv_cpu_notifier);
 	for_each_possible_cpu(cpu) {
 		kfree(iucv_param_irq[cpu]);
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 91033e6..7109e2b 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -226,6 +226,26 @@
     if ($is_module eq "0") {
         $cc .= " -mconstant-gp";
     }
+} elsif ($arch eq "sparc64") {
+    # In the objdump output there are giblets like:
+    # 0000000000000000 <igmp_net_exit-0x18>:
+    # As there's some data blobs that get emitted into the
+    # text section before the first instructions and the first
+    # real symbols.  We don't want to match that, so to combat
+    # this we use '\w' so we'll match just plain symbol names,
+    # and not those that also include hex offsets inside of the
+    # '<>' brackets.  Actually the generic function_regex setting
+    # could safely use this too.
+    $function_regex = "^([0-9a-fA-F]+)\\s+<(\\w*?)>:";
+
+    # Sparc64 calls '_mcount' instead of plain 'mcount'.
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s_mcount\$";
+
+    $alignment = 8;
+    $type = ".xword";
+    $ld .= " -m elf64_sparc";
+    $cc .= " -m64";
+    $objcopy .= " -O elf64-sparc";
 } else {
     die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
 }
diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index 80fb2ba..b0adc80 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -259,7 +259,6 @@
 	int n_amixer = apcm->substream->runtime->channels, i = 0;
 	int device = apcm->substream->pcm->device;
 	unsigned int pitch;
-	unsigned long flags;
 
 	if (NULL != apcm->src) {
 		/* Prepared pcm playback */
@@ -311,10 +310,10 @@
 	src = apcm->src;
 	for (i = 0; i < n_amixer; i++) {
 		amixer = apcm->amixers[i];
-		spin_lock_irqsave(&atc->atc_lock, flags);
+		mutex_lock(&atc->atc_mutex);
 		amixer->ops->setup(amixer, &src->rsc,
 					INIT_VOL, atc->pcm[i+device*2]);
-		spin_unlock_irqrestore(&atc->atc_lock, flags);
+		mutex_unlock(&atc->atc_mutex);
 		src = src->ops->next_interleave(src);
 		if (NULL == src)
 			src = apcm->src;
@@ -865,7 +864,6 @@
 spdif_passthru_playback_setup(struct ct_atc *atc, struct ct_atc_pcm *apcm)
 {
 	struct dao *dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
-	unsigned long flags;
 	unsigned int rate = apcm->substream->runtime->rate;
 	unsigned int status;
 	int err;
@@ -885,7 +883,7 @@
 		return -ENOENT;
 	}
 
-	spin_lock_irqsave(&atc->atc_lock, flags);
+	mutex_lock(&atc->atc_mutex);
 	dao->ops->get_spos(dao, &status);
 	if (((status >> 24) & IEC958_AES3_CON_FS) != iec958_con_fs) {
 		status &= ((~IEC958_AES3_CON_FS) << 24);
@@ -895,7 +893,7 @@
 	}
 	if ((rate != atc->pll_rate) && (32000 != rate))
 		err = atc_pll_init(atc, rate);
-	spin_unlock_irqrestore(&atc->atc_lock, flags);
+	mutex_unlock(&atc->atc_mutex);
 
 	return err;
 }
@@ -908,7 +906,6 @@
 	struct dao *dao;
 	int err;
 	int i;
-	unsigned long flags;
 
 	if (NULL != apcm->src)
 		return 0;
@@ -934,13 +931,13 @@
 			src = apcm->src;
 	}
 	/* Connect to SPDIFOO */
-	spin_lock_irqsave(&atc->atc_lock, flags);
+	mutex_lock(&atc->atc_mutex);
 	dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
 	amixer = apcm->amixers[0];
 	dao->ops->set_left_input(dao, &amixer->rsc);
 	amixer = apcm->amixers[1];
 	dao->ops->set_right_input(dao, &amixer->rsc);
-	spin_unlock_irqrestore(&atc->atc_lock, flags);
+	mutex_unlock(&atc->atc_mutex);
 
 	ct_timer_prepare(apcm->timer);
 
@@ -1088,7 +1085,6 @@
 
 static int atc_spdif_out_passthru(struct ct_atc *atc, unsigned char state)
 {
-	unsigned long flags;
 	struct dao_desc da_dsc = {0};
 	struct dao *dao;
 	int err;
@@ -1096,7 +1092,7 @@
 	struct rsc *rscs[2] = {NULL};
 	unsigned int spos = 0;
 
-	spin_lock_irqsave(&atc->atc_lock, flags);
+	mutex_lock(&atc->atc_mutex);
 	dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
 	da_dsc.msr = state ? 1 : atc->msr;
 	da_dsc.passthru = state ? 1 : 0;
@@ -1114,7 +1110,7 @@
 	}
 	dao->ops->set_spos(dao, spos);
 	dao->ops->commit_write(dao);
-	spin_unlock_irqrestore(&atc->atc_lock, flags);
+	mutex_unlock(&atc->atc_mutex);
 
 	return err;
 }
@@ -1572,7 +1568,7 @@
 	atc->msr = msr;
 	atc->chip_type = chip_type;
 
-	spin_lock_init(&atc->atc_lock);
+	mutex_init(&atc->atc_mutex);
 
 	/* Find card model */
 	err = atc_identify_card(atc);
diff --git a/sound/pci/ctxfi/ctatc.h b/sound/pci/ctxfi/ctatc.h
index a033472..9fe620ea 100644
--- a/sound/pci/ctxfi/ctatc.h
+++ b/sound/pci/ctxfi/ctatc.h
@@ -19,7 +19,7 @@
 #define CTATC_H
 
 #include <linux/types.h>
-#include <linux/spinlock_types.h>
+#include <linux/mutex.h>
 #include <linux/pci.h>
 #include <linux/timer.h>
 #include <sound/core.h>
@@ -90,7 +90,7 @@
 	void (*unmap_audio_buffer)(struct ct_atc *atc, struct ct_atc_pcm *apcm);
 	unsigned long (*get_ptp_phys)(struct ct_atc *atc, int index);
 
-	spinlock_t atc_lock;
+	struct mutex atc_mutex;
 
 	int (*pcm_playback_prepare)(struct ct_atc *atc,
 				    struct ct_atc_pcm *apcm);
diff --git a/sound/pci/ctxfi/cttimer.c b/sound/pci/ctxfi/cttimer.c
index 779c6c3..93b0aed 100644
--- a/sound/pci/ctxfi/cttimer.c
+++ b/sound/pci/ctxfi/cttimer.c
@@ -180,7 +180,7 @@
  *
  * call this inside the lock and irq disabled
  */
-static int ct_xfitimer_reprogram(struct ct_timer *atimer)
+static int ct_xfitimer_reprogram(struct ct_timer *atimer, int can_update)
 {
 	struct ct_timer_instance *ti;
 	unsigned int min_intr = (unsigned int)-1;
@@ -216,6 +216,8 @@
 			ti->frag_count = div_u64((u64)pos * CT_TIMER_FREQ +
 						 rate - 1, rate);
 		}
+		if (ti->need_update && !can_update)
+			min_intr = 0; /* pending to the next irq */
 		if (ti->frag_count < min_intr)
 			min_intr = ti->frag_count;
 	}
@@ -235,7 +237,7 @@
 
 	spin_lock_irqsave(&atimer->list_lock, flags);
 	list_for_each_entry(ti, &atimer->instance_head, instance_list) {
-		if (ti->need_update) {
+		if (ti->running && ti->need_update) {
 			ti->need_update = 0;
 			ti->apcm->interrupt(ti->apcm);
 		}
@@ -252,7 +254,7 @@
 	spin_lock_irqsave(&atimer->lock, flags);
 	atimer->irq_handling = 1;
 	do {
-		update = ct_xfitimer_reprogram(atimer);
+		update = ct_xfitimer_reprogram(atimer, 1);
 		spin_unlock(&atimer->lock);
 		if (update)
 			ct_xfitimer_check_period(atimer);
@@ -265,6 +267,7 @@
 static void ct_xfitimer_prepare(struct ct_timer_instance *ti)
 {
 	ti->frag_count = ti->substream->runtime->period_size;
+	ti->running = 0;
 	ti->need_update = 0;
 }
 
@@ -273,7 +276,6 @@
 static void ct_xfitimer_update(struct ct_timer *atimer)
 {
 	unsigned long flags;
-	int update;
 
 	spin_lock_irqsave(&atimer->lock, flags);
 	if (atimer->irq_handling) {
@@ -284,10 +286,8 @@
 	}
 
 	ct_xfitimer_irq_stop(atimer);
-	update = ct_xfitimer_reprogram(atimer);
+	ct_xfitimer_reprogram(atimer, 0);
 	spin_unlock_irqrestore(&atimer->lock, flags);
-	if (update)
-		ct_xfitimer_check_period(atimer);
 }
 
 static void ct_xfitimer_start(struct ct_timer_instance *ti)
@@ -298,6 +298,8 @@
 	spin_lock_irqsave(&atimer->lock, flags);
 	if (list_empty(&ti->running_list))
 		atimer->wc = ct_xfitimer_get_wc(atimer);
+	ti->running = 1;
+	ti->need_update = 0;
 	list_add(&ti->running_list, &atimer->running_head);
 	spin_unlock_irqrestore(&atimer->lock, flags);
 	ct_xfitimer_update(atimer);
@@ -310,7 +312,7 @@
 
 	spin_lock_irqsave(&atimer->lock, flags);
 	list_del_init(&ti->running_list);
-	ti->need_update = 0;
+	ti->running = 0;
 	spin_unlock_irqrestore(&atimer->lock, flags);
 	ct_xfitimer_update(atimer);
 }
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 337d2a5..d22b260 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9014,6 +9014,8 @@
 		ALC888_ACER_ASPIRE_4930G),
 	SND_PCI_QUIRK(0x1025, 0x0145, "Acer Aspire 8930G",
 		ALC888_ACER_ASPIRE_8930G),
+	SND_PCI_QUIRK(0x1025, 0x0146, "Acer Aspire 6935G",
+		ALC888_ACER_ASPIRE_8930G),
 	SND_PCI_QUIRK(0x1025, 0x0157, "Acer X3200", ALC883_AUTO),
 	SND_PCI_QUIRK(0x1025, 0x0158, "Acer AX1700-U3700A", ALC883_AUTO),
 	SND_PCI_QUIRK(0x1025, 0x015e, "Acer Aspire 6930G",
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 173bebf..8aa5687 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -356,8 +356,6 @@
         unsigned int position;
 	unsigned int pos_shift;
 	unsigned int last_pos;
-	unsigned long last_pos_jiffies;
-	unsigned int jiffy_to_bytes;
         int frags;
         int lvi;
         int lvi_frag;
@@ -844,7 +842,6 @@
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 		val = ICH_IOCE | ICH_STARTBM;
 		ichdev->last_pos = ichdev->position;
-		ichdev->last_pos_jiffies = jiffies;
 		break;
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 		ichdev->suspended = 1;
@@ -1048,7 +1045,6 @@
 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
 	}
 	snd_intel8x0_setup_periods(chip, ichdev);
-	ichdev->jiffy_to_bytes = (runtime->rate * 4 * ichdev->pos_shift) / HZ;
 	return 0;
 }
 
@@ -1073,19 +1069,23 @@
 		    ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
 			break;
 	} while (timeout--);
+	ptr = ichdev->last_pos;
 	if (ptr1 != 0) {
 		ptr1 <<= ichdev->pos_shift;
 		ptr = ichdev->fragsize1 - ptr1;
 		ptr += position;
-		ichdev->last_pos = ptr;
-		ichdev->last_pos_jiffies = jiffies;
-	} else {
-		ptr1 = jiffies - ichdev->last_pos_jiffies;
-		if (ptr1)
-			ptr1 -= 1;
-		ptr = ichdev->last_pos + ptr1 * ichdev->jiffy_to_bytes;
-		ptr %= ichdev->size;
+		if (ptr < ichdev->last_pos) {
+			unsigned int pos_base, last_base;
+			pos_base = position / ichdev->fragsize1;
+			last_base = ichdev->last_pos / ichdev->fragsize1;
+			/* another sanity check; ptr1 can go back to full
+			 * before the base position is updated
+			 */
+			if (pos_base == last_base)
+				ptr = ichdev->last_pos;
+		}
 	}
+	ichdev->last_pos = ptr;
 	spin_unlock(&chip->reg_lock);
 	if (ptr >= ichdev->size)
 		return 0;
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
index 1fc4c8e..c550750 100644
--- a/sound/soc/codecs/ssm2602.c
+++ b/sound/soc/codecs/ssm2602.c
@@ -375,10 +375,6 @@
 	struct snd_soc_codec *codec = socdev->card->codec;
 	struct ssm2602_priv *ssm2602 = codec->private_data;
 
-	if (ssm2602->master_substream == substream)
-		ssm2602->master_substream = ssm2602->slave_substream;
-
-	ssm2602->slave_substream = NULL;
 	/* deactivate */
 	if (!codec->active)
 		ssm2602_write(codec, SSM2602_ACTIVE, 0);
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c
index d8a9222..e8d2e3e 100644
--- a/sound/soc/codecs/wm8903.c
+++ b/sound/soc/codecs/wm8903.c
@@ -1257,22 +1257,18 @@
 	int div;
 } bclk_divs[] = {
 	{  10,  0 },
-	{  15,  1 },
 	{  20,  2 },
 	{  30,  3 },
 	{  40,  4 },
 	{  50,  5 },
-	{  55,  6 },
 	{  60,  7 },
 	{  80,  8 },
 	{ 100,  9 },
-	{ 110, 10 },
 	{ 120, 11 },
 	{ 160, 12 },
 	{ 200, 13 },
 	{ 220, 14 },
 	{ 240, 15 },
-	{ 250, 16 },
 	{ 300, 17 },
 	{ 320, 18 },
 	{ 440, 19 },
diff --git a/sound/soc/pxa/magician.c b/sound/soc/pxa/magician.c
index c89a3cd..326955d 100644
--- a/sound/soc/pxa/magician.c
+++ b/sound/soc/pxa/magician.c
@@ -184,7 +184,7 @@
 
 	/* set cpu DAI configuration */
 	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
-			SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBS_CFS);
+			SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
 	if (ret < 0)
 		return ret;
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 3f44150..1d70829 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1389,6 +1389,9 @@
 	snprintf(codec->card->longname, sizeof(codec->card->longname),
 		 "%s (%s)", card->name, codec->name);
 
+	/* Make sure all DAPM widgets are instantiated */
+	snd_soc_dapm_new_widgets(codec);
+
 	ret = snd_card_register(codec->card);
 	if (ret < 0) {
 		printk(KERN_ERR "asoc: failed to register soundcard for %s\n",
diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h
index f0f7624..f6f201e 100644
--- a/sound/usb/usbquirks.h
+++ b/sound/usb/usbquirks.h
@@ -1989,7 +1989,7 @@
 	USB_DEVICE(0x0ccd, 0x0028),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "TerraTec",
-		.product_name = "Aureon 5.1 MkII",
+		.product_name = "Aureon5.1MkII",
 		.ifnum = QUIRK_NO_INTERFACE
 	}
 },