143 files changed, 2419 insertions, 1360 deletions

diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c
index 4200839553..9b0e322118 100644
--- a/Documentation/lguest/lguest.c
+++ b/Documentation/lguest/lguest.c
@@ -1040,6 +1040,11 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs,
                 / getpagesize();
         p = get_pages(pages);
 
+        /* Initialize the virtqueue */
+        vq->next = NULL;
+        vq->last_avail_idx = 0;
+        vq->dev = dev;
+
         /* Initialize the configuration. */
         vq->config.num = num_descs;
         vq->config.irq = devices.next_irq++;
@@ -1057,9 +1062,6 @@ static void add_virtqueue(struct device *dev, unsigned int num_descs,
         for (i = &dev->vq; *i; i = &(*i)->next);
         *i = vq;
 
-        /* Link virtqueue back to device. */
-        vq->dev = dev;
-
         /* Set the routine to call when the Guest does something to this
          * virtqueue. */
         vq->handle_output = handle_output;
@@ -1093,6 +1095,7 @@ static struct device *new_device(const char *name, u16 type, int fd,
         dev->desc = new_dev_desc(type);
         dev->handle_input = handle_input;
         dev->name = name;
+        dev->vq = NULL;
         return dev;
 }
 
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index ac1be25c1e..e9a3cb1d6b 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -1645,8 +1645,9 @@ platforms are moved over to use the flattened-device-tree model.
      MAC addresses passed by the firmware when no information other
      than indices is available to associate an address with a device.
    - phy-connection-type : a string naming the controller/PHY interface type,
-     i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id", "tbi",
-     or "rtbi".
+     i.e., "mii" (default), "rmii", "gmii", "rgmii", "rgmii-id" (Internal
+     Delay), "rgmii-txid" (delay on TX only), "rgmii-rxid" (delay on RX only),
+     "tbi", or "rtbi".
 
    Example:
         ucc@2000 {
diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt
index ec499265de..10c041ca13 100644
--- a/Documentation/thinkpad-acpi.txt
+++ b/Documentation/thinkpad-acpi.txt
@@ -1,7 +1,7 @@
                      ThinkPad ACPI Extras Driver
 
-                            Version 0.16
-                          August 2nd, 2007
+                            Version 0.17
+                         October 04th, 2007
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -923,19 +923,34 @@ sysfs backlight device "thinkpad_screen"
 This feature allows software control of the LCD brightness on ThinkPad
 models which don't have a hardware brightness slider.
 
-It has some limitations: the LCD backlight cannot be actually turned on or off
-by this interface, and in many ThinkPad models, the "dim while on battery"
-functionality will be enabled by the BIOS when this interface is used, and
-cannot be controlled.
-
-The backlight control has eight levels, ranging from 0 to 7.  Some of the
-levels may not be distinct.
-
-There are two interfaces to the firmware for brightness control, EC and CMOS.
-To select which one should be used, use the brightness_mode module parameter:
-brightness_mode=1 selects EC mode, brightness_mode=2 selects CMOS mode,
-brightness_mode=3 selects both EC and CMOS.  The driver tries to autodetect
-which interface to use.
+It has some limitations: the LCD backlight cannot be actually turned on or
+off by this interface, and in many ThinkPad models, the "dim while on
+battery" functionality will be enabled by the BIOS when this interface is
+used, and cannot be controlled.
+
+On IBM (and some of the earlier Lenovo) ThinkPads, the backlight control
+has eight brightness levels, ranging from 0 to 7.  Some of the levels
+may not be distinct.  Later Lenovo models that implement the ACPI
+display backlight brightness control methods have 16 levels, ranging
+from 0 to 15.
+
+There are two interfaces to the firmware for direct brightness control,
+EC and CMOS.  To select which one should be used, use the
+brightness_mode module parameter: brightness_mode=1 selects EC mode,
+brightness_mode=2 selects CMOS mode, brightness_mode=3 selects both EC
+and CMOS.  The driver tries to autodetect which interface to use.
+
+When display backlight brightness controls are available through the
+standard ACPI interface, it is best to use it instead of this direct
+ThinkPad-specific interface.  The driver will disable its native
+backlight brightness control interface if it detects that the standard
+ACPI interface is available in the ThinkPad.
+
+The brightness_enable module parameter can be used to control whether
+the LCD brightness control feature will be enabled when available.
+brightness_enable=0 forces it to be disabled.  brightness_enable=1
+forces it to be enabled when available, even if the standard ACPI
+interface is also available.
 
 Procfs notes:
 
@@ -947,11 +962,11 @@ Procfs notes:
 
 Sysfs notes:
 
-The interface is implemented through the backlight sysfs class, which is poorly
-documented at this time.
+The interface is implemented through the backlight sysfs class, which is
+poorly documented at this time.
 
-Locate the thinkpad_screen device under /sys/class/backlight, and inside it
-there will be the following attributes:
+Locate the thinkpad_screen device under /sys/class/backlight, and inside
+it there will be the following attributes:
 
         max_brightness:
                 Reads the maximum brightness the hardware can be set to.
@@ -961,17 +976,19 @@ there will be the following attributes:
                 Reads what brightness the screen is set to at this instant.
 
         brightness:
-                Writes request the driver to change brightness to the given
-                value.  Reads will tell you what brightness the driver is trying
-                to set the display to when "power" is set to zero and the display
-                has not been dimmed by a kernel power management event.
+                Writes request the driver to change brightness to the
+                given value.  Reads will tell you what brightness the
+                driver is trying to set the display to when "power" is set
+                to zero and the display has not been dimmed by a kernel
+                power management event.
 
         power:
-                power management mode, where 0 is "display on", and 1 to 3 will
-                dim the display backlight to brightness level 0 because
-                thinkpad-acpi cannot really turn the backlight off.  Kernel
-                power management events can temporarily increase the current
-                power management level, i.e. they can dim the display.
+                power management mode, where 0 is "display on", and 1 to 3
+                will dim the display backlight to brightness level 0
+                because thinkpad-acpi cannot really turn the backlight
+                off.  Kernel power management events can temporarily
+                increase the current power management level, i.e. they can
+                dim the display.
 
 
 Volume control -- /proc/acpi/ibm/volume
diff --git a/MAINTAINERS b/MAINTAINERS
index cad0882754..a8df8e40e3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2446,7 +2446,7 @@ M68K ON APPLE MACINTOSH
 P:      Joshua Thompson
 M:      funaho@jurai.org
 W:      http://www.mac.linux-m68k.org/
-L:      linux-mac68k@mac.linux-m68k.org
+L:      linux-m68k@lists.linux-m68k.org
 S:      Maintained
 
 M68K ON HP9000/300
diff --git a/arch/m68k/atari/atakeyb.c b/arch/m68k/atari/atakeyb.c
index 880add120e..8a2a53b336 100644
--- a/arch/m68k/atari/atakeyb.c
+++ b/arch/m68k/atari/atakeyb.c
@@ -565,7 +565,7 @@ void atari_kbd_leds(unsigned int leds)
 
 static int atari_keyb_done = 0;
 
-int __init atari_keyb_init(void)
+int atari_keyb_init(void)
 {
         if (atari_keyb_done)
                 return 0;
@@ -631,6 +631,7 @@ int __init atari_keyb_init(void)
         atari_keyb_done = 1;
         return 0;
 }
+EXPORT_SYMBOL_GPL(atari_keyb_init);
 
 int atari_kbd_translate(unsigned char keycode, unsigned char *keycodep, char raw_mode)
 {
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2f2ce0c28b..455bd1f560 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -22,6 +22,7 @@ config MACH_ALCHEMY
 config BASLER_EXCITE
         bool "Basler eXcite smart camera"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_COHERENT
         select HW_HAS_PCI
         select IRQ_CPU
@@ -49,6 +50,7 @@ config BASLER_EXCITE_PROTOTYPE
 config BCM47XX
         bool "BCM47XX based boards"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select HW_HAS_PCI
         select IRQ_CPU
@@ -66,6 +68,7 @@ config BCM47XX
 config MIPS_COBALT
         bool "Cobalt Server"
         select CEVT_R4K
+        select CSRC_R4K
         select CEVT_GT641XX
         select DMA_NONCOHERENT
         select HW_HAS_PCI
@@ -85,6 +88,7 @@ config MACH_DECSTATION
         bool "DECstations"
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select NO_IOPORT
         select IRQ_CPU
@@ -117,6 +121,7 @@ config MACH_JAZZ
         select ARC32
         select ARCH_MAY_HAVE_PC_FDC
         select CEVT_R4K
+        select CSRC_R4K
         select GENERIC_ISA_DMA
         select IRQ_CPU
         select I8253
@@ -137,6 +142,7 @@ config MACH_JAZZ
 config LASAT
         bool "LASAT Networks platforms"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select SYS_HAS_EARLY_PRINTK
         select HW_HAS_PCI
@@ -154,6 +160,7 @@ config LEMOTE_FULONG
         bool "Lemote Fulong mini-PC"
         select ARCH_SPARSEMEM_ENABLE
         select CEVT_R4K
+        select CSRC_R4K
         select SYS_HAS_CPU_LOONGSON2
         select DMA_NONCOHERENT
         select BOOT_ELF32
@@ -179,6 +186,7 @@ config MIPS_ATLAS
         bool "MIPS Atlas board"
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select SYS_HAS_EARLY_PRINTK
         select IRQ_CPU
@@ -210,6 +218,7 @@ config MIPS_MALTA
         select ARCH_MAY_HAVE_PC_FDC
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select GENERIC_ISA_DMA
         select IRQ_CPU
@@ -241,6 +250,7 @@ config MIPS_MALTA
 config MIPS_SEAD
         bool "MIPS SEAD board"
         select CEVT_R4K
+        select CSRC_R4K
         select IRQ_CPU
         select DMA_NONCOHERENT
         select SYS_HAS_EARLY_PRINTK
@@ -260,6 +270,7 @@ config MIPS_SEAD
 config MIPS_SIM
         bool 'MIPS simulator (MIPSsim)'
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select SYS_HAS_EARLY_PRINTK
         select IRQ_CPU
@@ -278,6 +289,7 @@ config MIPS_SIM
 config MARKEINS
         bool "NEC EMMA2RH Mark-eins"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select HW_HAS_PCI
         select IRQ_CPU
@@ -293,6 +305,7 @@ config MARKEINS
 config MACH_VR41XX
         bool "NEC VR4100 series based machines"
         select CEVT_R4K
+        select CSRC_R4K
         select SYS_HAS_CPU_VR41XX
         select GENERIC_HARDIRQS_NO__DO_IRQ
 
@@ -330,6 +343,7 @@ config PMC_MSP
 config PMC_YOSEMITE
         bool "PMC-Sierra Yosemite eval board"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_COHERENT
         select HW_HAS_PCI
         select IRQ_CPU
@@ -351,6 +365,7 @@ config PMC_YOSEMITE
 config QEMU
         bool "Qemu"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_COHERENT
         select GENERIC_ISA_DMA
         select HAVE_STD_PC_SERIAL_PORT
@@ -382,9 +397,11 @@ config SGI_IP22
         select ARC32
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select HW_HAS_EISA
         select I8253
+        select I8259
         select IP22_CPU_SCACHE
         select IRQ_CPU
         select GENERIC_ISA_DMA_SUPPORT_BROKEN
@@ -427,6 +444,7 @@ config SGI_IP32
         select ARC32
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select HW_HAS_PCI
         select IRQ_CPU
@@ -498,6 +516,7 @@ config SIBYTE_SWARM
         select SYS_SUPPORTS_HIGHMEM
         select SYS_SUPPORTS_KGDB
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select ZONE_DMA32 if 64BIT
 
 config SIBYTE_LITTLESUR
         bool "Sibyte BCM91250C2-LittleSur"
@@ -548,6 +567,7 @@ config SIBYTE_BIGSUR
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_HIGHMEM
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select ZONE_DMA32 if 64BIT
 
 config SNI_RM
         bool "SNI RM200/300/400"
@@ -556,6 +576,7 @@ config SNI_RM
         select ARCH_MAY_HAVE_PC_FDC
         select BOOT_ELF32
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select GENERIC_ISA_DMA
         select HW_HAS_EISA
@@ -599,6 +620,7 @@ config TOSHIBA_JMR3927
 config TOSHIBA_RBTX4927
         bool "Toshiba RBTX49[23]7 board"
         select CEVT_R4K
+        select CSRC_R4K
         select CEVT_TXX9
         select DMA_NONCOHERENT
         select HAS_TXX9_SERIAL
@@ -621,6 +643,7 @@ config TOSHIBA_RBTX4927
 config TOSHIBA_RBTX4938
         bool "Toshiba RBTX4938 board"
         select CEVT_R4K
+        select CSRC_R4K
         select CEVT_TXX9
         select DMA_NONCOHERENT
         select HAS_TXX9_SERIAL
@@ -642,6 +665,7 @@ config TOSHIBA_RBTX4938
 config WR_PPMC
         bool "Wind River PPMC board"
         select CEVT_R4K
+        select CSRC_R4K
         select IRQ_CPU
         select BOOT_ELF32
         select DMA_NONCOHERENT
@@ -752,6 +776,9 @@ config CEVT_TXX9
 config CSRC_BCM1480
         bool
 
+config CSRC_R4K
+        bool
+
 config CSRC_SB1250
         bool
 
@@ -1640,6 +1667,9 @@ config ARCH_DISCONTIGMEM_ENABLE
           or have huge holes in the physical address space for other reasons.
           See <file:Documentation/vm/numa> for more.
 
+config ARCH_POPULATES_NODE_MAP
+        def_bool y
+
 config ARCH_SPARSEMEM_ENABLE
         bool
         select SPARSEMEM_STATIC
@@ -1945,6 +1975,9 @@ config I8253
 config PCSPEAKER
         bool
 
+config ZONE_DMA32
+        bool
+
 source "drivers/pcmcia/Kconfig"
 
 source "drivers/pci/hotplug/Kconfig"
diff --git a/arch/mips/au1000/Kconfig b/arch/mips/au1000/Kconfig
index b36cec58a9..05d1354aad 100644
--- a/arch/mips/au1000/Kconfig
+++ b/arch/mips/au1000/Kconfig
@@ -138,6 +138,7 @@ config SOC_AU1X00
         bool
         select 64BIT_PHYS_ADDR
         select CEVT_R4K
+        select CSRC_R4K
         select IRQ_CPU
         select SYS_HAS_CPU_MIPS32_R1
         select SYS_SUPPORTS_32BIT_KERNEL
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index b551535b7e..ffa08362de 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_CEVT_GT641XX)	+= cevt-gt641xx.o
 obj-$(CONFIG_CEVT_SB1250)       += cevt-sb1250.o
 obj-$(CONFIG_CEVT_TXX9)         += cevt-txx9.o
 obj-$(CONFIG_CSRC_BCM1480)      += csrc-bcm1480.o
+obj-$(CONFIG_CSRC_R4K)          += csrc-r4k.o
 obj-$(CONFIG_CSRC_SB1250)       += csrc-sb1250.o
 
 binfmt_irix-objs        := irixelf.o irixinv.o irixioctl.o irixsig.o    \
@@ -43,6 +44,7 @@ obj-$(CONFIG_CPU_TX49XX)	+= r4k_fpu.o r4k_switch.o
 obj-$(CONFIG_CPU_VR41XX)        += r4k_fpu.o r4k_switch.o
 
 obj-$(CONFIG_SMP)               += smp.o
+obj-$(CONFIG_SMP_UP)            += smp-up.o
 
 obj-$(CONFIG_MIPS_MT)           += mips-mt.o
 obj-$(CONFIG_MIPS_MT_FPAFF)     += mips-mt-fpaff.o
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index bab935a3d7..24a2d907aa 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -219,7 +219,7 @@ static int c0_compare_int_usable(void)
         return 1;
 }
 
-void __cpuinit mips_clockevent_init(void)
+int __cpuinit mips_clockevent_init(void)
 {
         uint64_t mips_freq = mips_hpt_frequency;
         unsigned int cpu = smp_processor_id();
@@ -227,7 +227,7 @@ void __cpuinit mips_clockevent_init(void)
         unsigned int irq;
 
         if (!cpu_has_counter || !mips_hpt_frequency)
-                return;
+                return -ENXIO;
 
 #ifdef CONFIG_MIPS_MT_SMTC
         setup_smtc_dummy_clockevent_device();
@@ -237,11 +237,11 @@ void __cpuinit mips_clockevent_init(void)
          * device.
          */
         if (cpu)
-                return;
+                return 0;
 #endif
 
         if (!c0_compare_int_usable())
-                return;
+                return -ENXIO;
 
         /*
          * With vectored interrupts things are getting platform specific.
@@ -276,8 +276,8 @@ void __cpuinit mips_clockevent_init(void)
 
         clockevents_register_device(cd);
 
-        if (!cp0_timer_irq_installed)
-                return;
+        if (cp0_timer_irq_installed)
+                return 0;
 
         cp0_timer_irq_installed = 1;
 
@@ -287,4 +287,6 @@ void __cpuinit mips_clockevent_init(void)
 #else
         setup_irq(irq, &c0_compare_irqaction);
 #endif
+
+        return 0;
 }
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
new file mode 100644
index 0000000000..74c5c62365
--- /dev/null
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -0,0 +1,29 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 by Ralf Baechle
+ */
+
+static cycle_t c0_hpt_read(void)
+{
+        return read_c0_count();
+}
+
+static struct clocksource clocksource_mips = {
+        .name           = "MIPS",
+        .read           = c0_hpt_read,
+        .mask           = CLOCKSOURCE_MASK(32),
+        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static void __init init_mips_clocksource(void)
+{
+        /* Calclate a somewhat reasonable rating value */
+        clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
+
+        clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
+
+        clocksource_register(&clocksource_mips);
+}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index a06a27d6cf..7f6ddcb5d4 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -269,7 +269,7 @@ static void __init bootmem_init(void)
 
 static void __init bootmem_init(void)
 {
-        unsigned long reserved_end;
+        unsigned long init_begin, reserved_end;
         unsigned long mapstart = ~0UL;
         unsigned long bootmap_size;
         int i;
@@ -342,6 +342,35 @@ static void __init bootmem_init(void)
          */
         bootmap_size = init_bootmem_node(NODE_DATA(0), mapstart,
                                          min_low_pfn, max_low_pfn);
+
+
+        init_begin = PFN_UP(__pa_symbol(&__init_begin));
+        for (i = 0; i < boot_mem_map.nr_map; i++) {
+                unsigned long start, end;
+
+                start = PFN_UP(boot_mem_map.map[i].addr);
+                end = PFN_DOWN(boot_mem_map.map[i].addr
+                                + boot_mem_map.map[i].size);
+
+                if (start <= init_begin)
+                        start = init_begin;
+                if (start >= end)
+                        continue;
+
+#ifndef CONFIG_HIGHMEM
+                if (end > max_low_pfn)
+                        end = max_low_pfn;
+
+                /*
+                 * ... finally, is the area going away?
+                 */
+                if (end <= start)
+                        continue;
+#endif
+
+                add_active_range(0, start, end);
+        }
+
         /*
          * Register fully available low RAM pages with the bootmem allocator.
          */
diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c
new file mode 100644
index 0000000000..ead6c30eeb
--- /dev/null
+++ b/arch/mips/kernel/smp-up.c
@@ -0,0 +1,67 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006, 07 by Ralf Baechle (ralf@linux-mips.org)
+ *
+ * Symmetric Uniprocessor (TM) Support
+ */
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+/*
+ * Send inter-processor interrupt
+ */
+void up_send_ipi_single(int cpu, unsigned int action)
+{
+        panic(KERN_ERR "%s called", __func__);
+}
+
+static inline void up_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+        panic(KERN_ERR "%s called", __func__);
+}
+
+/*
+ *  After we've done initial boot, this function is called to allow the
+ *  board code to clean up state, if needed
+ */
+void __cpuinit up_init_secondary(void)
+{
+}
+
+void __cpuinit up_smp_finish(void)
+{
+}
+
+/* Hook for after all CPUs are online */
+void up_cpus_done(void)
+{
+}
+
+/*
+ * Firmware CPU startup hook
+ */
+void __cpuinit up_boot_secondary(int cpu, struct task_struct *idle)
+{
+}
+
+void __init up_smp_setup(void)
+{
+}
+
+void __init up_prepare_cpus(unsigned int max_cpus)
+{
+}
+
+struct plat_smp_ops up_smp_ops = {
+        .send_ipi_single        = up_send_ipi_single,
+        .send_ipi_mask          = up_send_ipi_mask,
+        .init_secondary         = up_init_secondary,
+        .smp_finish             = up_smp_finish,
+        .cpus_done              = up_cpus_done,
+        .boot_secondary         = up_boot_secondary,
+        .smp_setup              = up_smp_setup,
+        .prepare_cpus           = up_prepare_cpus,
+};
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 3284b9b4ec..52075426c3 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -50,14 +50,6 @@ int update_persistent_clock(struct timespec now)
         return rtc_mips_set_mmss(now.tv_sec);
 }
 
-/*
- * High precision timer functions for a R4k-compatible timer.
- */
-static cycle_t c0_hpt_read(void)
-{
-        return read_c0_count();
-}
-
 int (*mips_timer_state)(void);
 
 int null_perf_irq(void)
@@ -84,55 +76,6 @@ EXPORT_SYMBOL(perf_irq);
 
 unsigned int mips_hpt_frequency;
 
-static struct clocksource clocksource_mips = {
-        .name           = "MIPS",
-        .read           = c0_hpt_read,
-        .mask           = CLOCKSOURCE_MASK(32),
-        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static unsigned int __init calibrate_hpt(void)
-{
-        cycle_t frequency, hpt_start, hpt_end, hpt_count, hz;
-
-        const int loops = HZ / 10;
-        int log_2_loops = 0;
-        int i;
-
-        /*
-         * We want to calibrate for 0.1s, but to avoid a 64-bit
-         * division we round the number of loops up to the nearest
-         * power of 2.
-         */
-        while (loops > 1 << log_2_loops)
-                log_2_loops++;
-        i = 1 << log_2_loops;
-
-        /*
-         * Wait for a rising edge of the timer interrupt.
-         */
-        while (mips_timer_state());
-        while (!mips_timer_state());
-
-        /*
-         * Now see how many high precision timer ticks happen
-         * during the calculated number of periods between timer
-         * interrupts.
-         */
-        hpt_start = clocksource_mips.read();
-        do {
-                while (mips_timer_state());
-                while (!mips_timer_state());
-        } while (--i);
-        hpt_end = clocksource_mips.read();
-
-        hpt_count = (hpt_end - hpt_start) & clocksource_mips.mask;
-        hz = HZ;
-        frequency = hpt_count * hz;
-
-        return frequency >> log_2_loops;
-}
-
 void __init clocksource_set_clock(struct clocksource *cs, unsigned int clock)
 {
         u64 temp;
@@ -166,16 +109,6 @@ void __cpuinit clockevent_set_clock(struct clock_event_device *cd,
         cd->mult = (u32) temp;
 }
 
-static void __init init_mips_clocksource(void)
-{
-        /* Calclate a somewhat reasonable rating value */
-        clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
-
-        clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
-
-        clocksource_register(&clocksource_mips);
-}
-
 void __init __weak plat_time_init(void)
 {
 }
@@ -194,21 +127,42 @@ void __init plat_timer_setup(void)
         BUG();
 }
 
+static __init int cpu_has_mfc0_count_bug(void)
+{
+        switch (current_cpu_type()) {
+        case CPU_R4000PC:
+        case CPU_R4000SC:
+        case CPU_R4000MC:
+                /*
+                 * V3.0 is documented as suffering from the mfc0 from count bug.
+                 * Afaik this is the last version of the R4000.  Later versions
+                 * were marketed as R4400.
+                 */
+                return 1;
+
+        case CPU_R4400PC:
+        case CPU_R4400SC:
+        case CPU_R4400MC:
+                /*
+                 * The published errata for the R4400 upto 3.0 say the CPU
+                 * has the mfc0 from count bug.
+                 */
+                if ((current_cpu_data.processor_id & 0xff) <= 0x30)
+                        return 1;
+
+                /*
+                 * I don't have erratas for newer R4400 so be paranoid.
+                 */
+                return 1;
+        }
+
+        return 0;
+}
+
 void __init time_init(void)
 {
         plat_time_init();
 
-        if (cpu_has_counter && (mips_hpt_frequency || mips_timer_state)) {
-                /* We know counter frequency.  Or we can get it.  */
-                if (!mips_hpt_frequency)
-                        mips_hpt_frequency = calibrate_hpt();
-
-                /* Report the high precision timer rate for a reference.  */
-                printk("Using %u.%03u MHz high precision timer.\n",
-                       ((mips_hpt_frequency + 500) / 1000) / 1000,
-                       ((mips_hpt_frequency + 500) / 1000) % 1000);
+        if (mips_clockevent_init() || !cpu_has_mfc0_count_bug())
                 init_mips_clocksource();
-        }
-
-        mips_clockevent_init();
 }
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 38bd33fa2a..c06eb812a9 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -470,7 +470,7 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location,
                          */
                         if (v != l->value) {
                                 printk(KERN_DEBUG "VPE loader: "
-                                       "apply_r_mips_lo16/hi16:         "
+                                       "apply_r_mips_lo16/hi16: \t"
                                        "inconsistent value information\n");
                                 return -ENOEXEC;
                         }
@@ -629,7 +629,7 @@ static void simplify_symbols(Elf_Shdr * sechdrs,
                         break;
 
                 case SHN_MIPS_SCOMMON:
-                        printk(KERN_DEBUG "simplify_symbols: ignoring SHN_MIPS_SCOMMON"
+                        printk(KERN_DEBUG "simplify_symbols: ignoring SHN_MIPS_SCOMMON "
                                "symbol <%s> st_shndx %d\n", strtab + sym[i].st_name,
                                sym[i].st_shndx);
                         // .sbss section
diff --git a/arch/mips/math-emu/ieee754.c b/arch/mips/math-emu/ieee754.c
index 946aee3317..cb1b682271 100644
--- a/arch/mips/math-emu/ieee754.c
+++ b/arch/mips/math-emu/ieee754.c
@@ -108,6 +108,7 @@ int ieee754si_xcpt(int r, const char *op, ...)
         ax.rv.si = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.si;
 }
 
@@ -122,5 +123,6 @@ s64 ieee754di_xcpt(s64 r, const char *op, ...)
         ax.rv.di = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.di;
 }
diff --git a/arch/mips/math-emu/ieee754dp.c b/arch/mips/math-emu/ieee754dp.c
index 3e214aac4b..6d2d89f324 100644
--- a/arch/mips/math-emu/ieee754dp.c
+++ b/arch/mips/math-emu/ieee754dp.c
@@ -57,6 +57,7 @@ ieee754dp ieee754dp_xcpt(ieee754dp r, const char *op, ...)
         ax.rv.dp = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.dp;
 }
 
@@ -83,6 +84,7 @@ ieee754dp ieee754dp_nanxcpt(ieee754dp r, const char *op, ...)
         ax.rv.dp = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.dp;
 }
 
diff --git a/arch/mips/math-emu/ieee754sp.c b/arch/mips/math-emu/ieee754sp.c
index adda851cd0..463534045a 100644
--- a/arch/mips/math-emu/ieee754sp.c
+++ b/arch/mips/math-emu/ieee754sp.c
@@ -58,6 +58,7 @@ ieee754sp ieee754sp_xcpt(ieee754sp r, const char *op, ...)
         ax.rv.sp = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.sp;
 }
 
@@ -84,6 +85,7 @@ ieee754sp ieee754sp_nanxcpt(ieee754sp r, const char *op, ...)
         ax.rv.sp = r;
         va_start(ax.ap, op);
         ieee754_xcpt(&ax);
+        va_end(ax.ap);
         return ax.rv.sp;
 }
 
diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c
index bfaafa3884..e39bbe989d 100644
--- a/arch/mips/mipssim/sim_time.c
+++ b/arch/mips/mipssim/sim_time.c
@@ -101,9 +101,7 @@ unsigned __init get_c0_compare_int(void)
 
 void __init plat_time_init(void)
 {
-        unsigned int est_freq, flags;
-
-        local_irq_save(flags);
+        unsigned int est_freq;
 
         /* Set Data mode - binary. */
         CMOS_WRITE(CMOS_READ(RTC_CONTROL) | RTC_DM_BINARY, RTC_CONTROL);
@@ -114,6 +112,4 @@ void __init plat_time_init(void)
                (est_freq % 1000000) * 100 / 1000000);
 
         cpu_khz = est_freq / 1000;
-
-        local_irq_restore(flags);
 }
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 33519ce495..ae76795685 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -40,16 +40,38 @@ static inline int cpu_is_noncoherent_r10000(struct device *dev)
                current_cpu_type() == CPU_R12000);
 }
 
+static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
+{
+        /* ignore region specifiers */
+        gfp &= ~(__GFP_DMA | __GFP_DMA32 | __GFP_HIGHMEM);
+
+#ifdef CONFIG_ZONE_DMA32
+        if (dev == NULL)
+                gfp |= __GFP_DMA;
+        else if (dev->coherent_dma_mask < DMA_BIT_MASK(24))
+                gfp |= __GFP_DMA;
+        else
+#endif
+#ifdef CONFIG_ZONE_DMA32
+             if (dev->coherent_dma_mask < DMA_BIT_MASK(32))
+                gfp |= __GFP_DMA32;
+        else
+#endif
+                ;
+
+        /* Don't invoke OOM killer */
+        gfp |= __GFP_NORETRY;
+
+        return gfp;
+}
+
 void *dma_alloc_noncoherent(struct device *dev, size_t size,
         dma_addr_t * dma_handle, gfp_t gfp)
 {
         void *ret;
 
-        /* ignore region specifiers */
-        gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
+        gfp = massage_gfp_flags(dev, gfp);
 
-        if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
-                gfp |= GFP_DMA;
         ret = (void *) __get_free_pages(gfp, get_order(size));
 
         if (ret != NULL) {
@@ -67,11 +89,8 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 {
         void *ret;
 
-        /* ignore region specifiers */
-        gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
+        gfp = massage_gfp_flags(dev, gfp);
 
-        if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff))
-                gfp |= GFP_DMA;
         ret = (void *) __get_free_pages(gfp, get_order(size));
 
         if (ret) {
@@ -343,7 +362,7 @@ int dma_supported(struct device *dev, u64 mask)
          * so we can't guarantee allocations that must be
          * within a tighter range than GFP_DMA..
          */
-        if (mask < 0x00ffffff)
+        if (mask < DMA_BIT_MASK(24))
                 return 0;
 
         return 1;
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index ec3b9e9f30..480dec04f5 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -347,11 +347,8 @@ static int __init page_is_ram(unsigned long pagenr)
 
 void __init paging_init(void)
 {
-        unsigned long zones_size[MAX_NR_ZONES] = { 0, };
-#ifndef CONFIG_FLATMEM
-        unsigned long zholes_size[MAX_NR_ZONES] = { 0, };
-        unsigned long i, j, pfn;
-#endif
+        unsigned long max_zone_pfns[MAX_NR_ZONES];
+        unsigned long lastpfn;
 
         pagetable_init();
 
@@ -361,35 +358,27 @@ void __init paging_init(void)
         kmap_coherent_init();
 
 #ifdef CONFIG_ZONE_DMA
-        if (min_low_pfn < MAX_DMA_PFN && MAX_DMA_PFN <= max_low_pfn) {
-                zones_size[ZONE_DMA] = MAX_DMA_PFN - min_low_pfn;
-                zones_size[ZONE_NORMAL] = max_low_pfn - MAX_DMA_PFN;
-        } else if (max_low_pfn < MAX_DMA_PFN)
-                zones_size[ZONE_DMA] = max_low_pfn - min_low_pfn;
-        else
+        max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
 #endif
-        zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn;
-
+#ifdef CONFIG_ZONE_DMA32
+        max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
+#endif
+        max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
+        lastpfn = max_low_pfn;
 #ifdef CONFIG_HIGHMEM
-        zones_size[ZONE_HIGHMEM] = highend_pfn - highstart_pfn;
+        max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
+        lastpfn = highend_pfn;
 
-        if (cpu_has_dc_aliases && zones_size[ZONE_HIGHMEM]) {
+        if (cpu_has_dc_aliases && max_low_pfn != highend_pfn) {
                 printk(KERN_WARNING "This processor doesn't support highmem."
-                       " %ldk highmem ignored\n", zones_size[ZONE_HIGHMEM]);
-                zones_size[ZONE_HIGHMEM] = 0;
+                       " %ldk highmem ignored\n",
+                       (highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10));
+                max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn;
+                lastpfn = max_low_pfn;
         }
 #endif
 
-#ifdef CONFIG_FLATMEM
-        free_area_init(zones_size);
-#else
-        pfn = min_low_pfn;
-        for (i = 0; i < MAX_NR_ZONES; i++)
-                for (j = 0; j < zones_size[i]; j++, pfn++)
-                        if (!page_is_ram(pfn))
-                                zholes_size[i]++;
-        free_area_init_node(0, NODE_DATA(0), zones_size, 0, zholes_size);
-#endif
+        free_area_init_nodes(max_zone_pfns);
 }
 
 static struct kcore_list kcore_mem, kcore_vmalloc;
diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig
index 6b293ce093..90261b83db 100644
--- a/arch/mips/pmc-sierra/Kconfig
+++ b/arch/mips/pmc-sierra/Kconfig
@@ -5,12 +5,14 @@ choice
 config PMC_MSP4200_EVAL
         bool "PMC-Sierra MSP4200 Eval Board"
         select CEVT_R4K
+        select CSRC_R4K
         select IRQ_MSP_SLP
         select HW_HAS_PCI
 
 config PMC_MSP4200_GW
         bool "PMC-Sierra MSP4200 VoIP Gateway"
         select CEVT_R4K
+        select CSRC_R4K
         select IRQ_MSP_SLP
         select HW_HAS_PCI
 
diff --git a/arch/mips/sgi-ip22/ip22-eisa.c b/arch/mips/sgi-ip22/ip22-eisa.c
index 26854fb11e..1617241d27 100644
--- a/arch/mips/sgi-ip22/ip22-eisa.c
+++ b/arch/mips/sgi-ip22/ip22-eisa.c
@@ -36,6 +36,7 @@
 #include <asm/sgi/ioc.h>
 #include <asm/sgi/mc.h>
 #include <asm/sgi/ip22.h>
+#include <asm/i8259.h>
 
 /* I2 has four EISA slots. */
 #define IP22_EISA_MAX_SLOTS       4
@@ -93,126 +94,11 @@ static irqreturn_t ip22_eisa_intr(int irq, void *dev_id)
         return IRQ_NONE;
 }
 
-static void enable_eisa1_irq(unsigned int irq)
-{
-        u8 mask;
-
-        mask = inb(EISA_INT1_MASK);
-        mask &= ~((u8) (1 << irq));
-        outb(mask, EISA_INT1_MASK);
-}
-
-static unsigned int startup_eisa1_irq(unsigned int irq)
-{
-        u8 edge;
-
-        /* Only use edge interrupts for EISA */
-
-        edge = inb(EISA_INT1_EDGE_LEVEL);
-        edge &= ~((u8) (1 << irq));
-        outb(edge, EISA_INT1_EDGE_LEVEL);
-
-        enable_eisa1_irq(irq);
-        return 0;
-}
-
-static void disable_eisa1_irq(unsigned int irq)
-{
-        u8 mask;
-
-        mask = inb(EISA_INT1_MASK);
-        mask |= ((u8) (1 << irq));
-        outb(mask, EISA_INT1_MASK);
-}
-
-static void mask_and_ack_eisa1_irq(unsigned int irq)
-{
-        disable_eisa1_irq(irq);
-
-        outb(0x20, EISA_INT1_CTRL);
-}
-
-static void end_eisa1_irq(unsigned int irq)
-{
-        if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-                enable_eisa1_irq(irq);
-}
-
-static struct irq_chip ip22_eisa1_irq_type = {
-        .name           = "IP22 EISA",
-        .startup        = startup_eisa1_irq,
-        .ack            = mask_and_ack_eisa1_irq,
-        .mask           = disable_eisa1_irq,
-        .mask_ack       = mask_and_ack_eisa1_irq,
-        .unmask         = enable_eisa1_irq,
-        .end            = end_eisa1_irq,
-};
-
-static void enable_eisa2_irq(unsigned int irq)
-{
-        u8 mask;
-
-        mask = inb(EISA_INT2_MASK);
-        mask &= ~((u8) (1 << (irq - 8)));
-        outb(mask, EISA_INT2_MASK);
-}
-
-static unsigned int startup_eisa2_irq(unsigned int irq)
-{
-        u8 edge;
-
-        /* Only use edge interrupts for EISA */
-
-        edge = inb(EISA_INT2_EDGE_LEVEL);
-        edge &= ~((u8) (1 << (irq - 8)));
-        outb(edge, EISA_INT2_EDGE_LEVEL);
-
-        enable_eisa2_irq(irq);
-        return 0;
-}
-
-static void disable_eisa2_irq(unsigned int irq)
-{
-        u8 mask;
-
-        mask = inb(EISA_INT2_MASK);
-        mask |= ((u8) (1 << (irq - 8)));
-        outb(mask, EISA_INT2_MASK);
-}
-
-static void mask_and_ack_eisa2_irq(unsigned int irq)
-{
-        disable_eisa2_irq(irq);
-
-        outb(0x20, EISA_INT2_CTRL);
-}
-
-static void end_eisa2_irq(unsigned int irq)
-{
-        if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
-                enable_eisa2_irq(irq);
-}
-
-static struct irq_chip ip22_eisa2_irq_type = {
-        .name           = "IP22 EISA",
-        .startup        = startup_eisa2_irq,
-        .ack            = mask_and_ack_eisa2_irq,
-        .mask           = disable_eisa2_irq,
-        .mask_ack       = mask_and_ack_eisa2_irq,
-        .unmask         = enable_eisa2_irq,
-        .end            = end_eisa2_irq,
-};
-
 static struct irqaction eisa_action = {
         .handler        = ip22_eisa_intr,
         .name           = "EISA",
 };
 
-static struct irqaction cascade_action = {
-        .handler        = no_action,
-        .name           = "EISA cascade",
-};
-
 int __init ip22_eisa_init(void)
 {
         int i, c;
@@ -248,29 +134,13 @@ int __init ip22_eisa_init(void)
         outb(1, EISA_EXT_NMI_RESET_CTRL);
         udelay(50);     /* Wait long enough for the dust to settle */
         outb(0, EISA_EXT_NMI_RESET_CTRL);
-        outb(0x11, EISA_INT1_CTRL);
-        outb(0x11, EISA_INT2_CTRL);
-        outb(0, EISA_INT1_MASK);
-        outb(8, EISA_INT2_MASK);
-        outb(4, EISA_INT1_MASK);
-        outb(2, EISA_INT2_MASK);
-        outb(1, EISA_INT1_MASK);
-        outb(1, EISA_INT2_MASK);
-        outb(0xfb, EISA_INT1_MASK);
-        outb(0xff, EISA_INT2_MASK);
         outb(0, EISA_DMA2_WRITE_SINGLE);
 
-        for (i = SGINT_EISA; i < (SGINT_EISA + EISA_MAX_IRQ); i++) {
-                if (i < (SGINT_EISA + 8))
-                        set_irq_chip(i, &ip22_eisa1_irq_type);
-                else
-                        set_irq_chip(i, &ip22_eisa2_irq_type);
-        }
+        init_i8259_irqs();
 
         /* Cannot use request_irq because of kmalloc not being ready at such
          * an early stage. Yes, I've been bitten... */
         setup_irq(SGI_EISA_IRQ, &eisa_action);
-        setup_irq(SGINT_EISA + 2, &cascade_action);
 
         EISA_bus = 1;
         return 0;
diff --git a/arch/mips/sgi-ip22/ip22-nvram.c b/arch/mips/sgi-ip22/ip22-nvram.c
index e19d60d5fc..0177566475 100644
--- a/arch/mips/sgi-ip22/ip22-nvram.c
+++ b/arch/mips/sgi-ip22/ip22-nvram.c
@@ -32,19 +32,19 @@
         for (x=0; x<100000; x++) __asm__ __volatile__(""); })
 
 #define eeprom_cs_on(ptr) ({    \
-        *ptr &= ~EEPROM_DATO;   \
-        *ptr &= ~EEPROM_ECLK;   \
-        *ptr &= ~EEPROM_EPROT;  \
-        delay();                \
-        *ptr |= EEPROM_CSEL;    \
-        *ptr |= EEPROM_ECLK; })
+        __raw_writel(__raw_readl(ptr) & ~EEPROM_DATO, ptr);     \
+        __raw_writel(__raw_readl(ptr) & ~EEPROM_ECLK, ptr);     \
+        __raw_writel(__raw_readl(ptr) & ~EEPROM_EPROT, ptr);    \
+        delay();                                                \
+        __raw_writel(__raw_readl(ptr) | EEPROM_CSEL, ptr);      \
+        __raw_writel(__raw_readl(ptr) | EEPROM_ECLK, ptr); })
 
 
 #define eeprom_cs_off(ptr) ({   \
-        *ptr &= ~EEPROM_ECLK;   \
-        *ptr &= ~EEPROM_CSEL;   \
-        *ptr |= EEPROM_EPROT;   \
-        *ptr |= EEPROM_ECLK; })
+        __raw_writel(__raw_readl(ptr) & ~EEPROM_ECLK, ptr);     \
+        __raw_writel(__raw_readl(ptr) & ~EEPROM_CSEL, ptr);     \
+        __raw_writel(__raw_readl(ptr) | EEPROM_EPROT, ptr);     \
+        __raw_writel(__raw_readl(ptr) | EEPROM_ECLK, ptr); })
 
 #define BITS_IN_COMMAND 11
 /*
@@ -60,15 +60,17 @@ static inline void eeprom_cmd(unsigned int *ctrl, unsigned cmd, unsigned reg)
         ser_cmd = cmd | (reg << (16 - BITS_IN_COMMAND));
         for (i = 0; i < BITS_IN_COMMAND; i++) {
                 if (ser_cmd & (1<<15))  /* if high order bit set */
-                        writel(readl(ctrl) | EEPROM_DATO, ctrl);
+                        __raw_writel(__raw_readl(ctrl) | EEPROM_DATO, ctrl);
                 else
-                        writel(readl(ctrl) & ~EEPROM_DATO, ctrl);
-                writel(readl(ctrl) & ~EEPROM_ECLK, ctrl);
-                writel(readl(ctrl) | EEPROM_ECLK, ctrl);
+                        __raw_writel(__raw_readl(ctrl) & ~EEPROM_DATO, ctrl);
+                __raw_writel(__raw_readl(ctrl) & ~EEPROM_ECLK, ctrl);
+                delay();
+                __raw_writel(__raw_readl(ctrl) | EEPROM_ECLK, ctrl);
+                delay();
                 ser_cmd <<= 1;
         }
         /* see data sheet timing diagram */
-        writel(readl(ctrl) & ~EEPROM_DATO, ctrl);
+        __raw_writel(__raw_readl(ctrl) & ~EEPROM_DATO, ctrl);
 }
 
 unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg)
@@ -76,18 +78,18 @@ unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg)
         unsigned short res = 0;
         int i;
 
-        writel(readl(ctrl) & ~EEPROM_EPROT, ctrl);
+        __raw_writel(__raw_readl(ctrl) & ~EEPROM_EPROT, ctrl);
         eeprom_cs_on(ctrl);
         eeprom_cmd(ctrl, EEPROM_READ, reg);
 
         /* clock the data ouf of serial mem */
         for (i = 0; i < 16; i++) {
-                writel(readl(ctrl) & ~EEPROM_ECLK, ctrl);
+                __raw_writel(__raw_readl(ctrl) & ~EEPROM_ECLK, ctrl);
                 delay();
-                writel(readl(ctrl) | EEPROM_ECLK, ctrl);
+                __raw_writel(__raw_readl(ctrl) | EEPROM_ECLK, ctrl);
                 delay();
                 res <<= 1;
-                if (readl(ctrl) & EEPROM_DATI)
+                if (__raw_readl(ctrl) & EEPROM_DATI)
                         res |= 1;
         }
 
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index aab17ddd2f..cab7cc22ab 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -209,18 +209,18 @@ static unsigned long macepci_mask;
 
 static void enable_macepci_irq(unsigned int irq)
 {
-        macepci_mask |= MACEPCI_CONTROL_INT(irq - 9);
+        macepci_mask |= MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ);
         mace->pci.control = macepci_mask;
-        crime_mask |= 1 << (irq - 1);
+        crime_mask |= 1 << (irq - CRIME_IRQ_BASE);
         crime->imask = crime_mask;
 }
 
 static void disable_macepci_irq(unsigned int irq)
 {
-        crime_mask &= ~(1 << (irq - 1));
+        crime_mask &= ~(1 << (irq - CRIME_IRQ_BASE));
         crime->imask = crime_mask;
         flush_crime_bus();
-        macepci_mask &= ~MACEPCI_CONTROL_INT(irq - 9);
+        macepci_mask &= ~MACEPCI_CONTROL_INT(irq - MACEPCI_SCSI0_IRQ);
         mace->pci.control = macepci_mask;
         flush_mace_bus();
 }
@@ -299,7 +299,7 @@ static void enable_maceisa_irq(unsigned int irq)
         pr_debug("crime_int %08x enabled\n", crime_int);
         crime_mask |= crime_int;
         crime->imask = crime_mask;
-        maceisa_mask |= 1 << (irq - 33);
+        maceisa_mask |= 1 << (irq - MACEISA_AUDIO_SW_IRQ);
         mace->perif.ctrl.imask = maceisa_mask;
 }
 
@@ -307,7 +307,7 @@ static void disable_maceisa_irq(unsigned int irq)
 {
         unsigned int crime_int = 0;
 
-        maceisa_mask &= ~(1 << (irq - 33));
+        maceisa_mask &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ));
         if (!(maceisa_mask & MACEISA_AUDIO_INT))
                 crime_int |= MACE_AUDIO_INT;
         if (!(maceisa_mask & MACEISA_MISC_INT))
@@ -331,7 +331,7 @@ static void mask_and_ack_maceisa_irq(unsigned int irq)
         case MACEISA_SERIAL2_TDMAPR_IRQ:
                 /* edge triggered */
                 mace_int = mace->perif.ctrl.istat;
-                mace_int &= ~(1 << (irq - 33));
+                mace_int &= ~(1 << (irq - MACEISA_AUDIO_SW_IRQ));
                 mace->perif.ctrl.istat = mace_int;
                 break;
         }
@@ -359,13 +359,17 @@ static struct irq_chip ip32_maceisa_interrupt = {
 
 static void enable_mace_irq(unsigned int irq)
 {
-        crime_mask |= 1 << (irq - 1);
+        unsigned int bit = irq - CRIME_IRQ_BASE;
+
+        crime_mask |= (1 << bit);
         crime->imask = crime_mask;
 }
 
 static void disable_mace_irq(unsigned int irq)
 {
-        crime_mask &= ~(1 << (irq - 1));
+        unsigned int bit = irq - CRIME_IRQ_BASE;
+
+        crime_mask &= ~(1 << bit);
         crime->imask = crime_mask;
         flush_crime_bus();
 }
@@ -489,7 +493,7 @@ void __init arch_init_irq(void)
         mace->perif.ctrl.imask = 0;
 
         mips_cpu_irq_init();
-        for (irq = MIPS_CPU_IRQ_BASE + 8; irq <= IP32_IRQ_MAX; irq++) {
+        for (irq = CRIME_IRQ_BASE; irq <= IP32_IRQ_MAX; irq++) {
                 switch (irq) {
                 case MACE_VID_IN1_IRQ ... MACE_PCI_BRIDGE_IRQ:
                         set_irq_chip(irq, &ip32_mace_interrupt);
diff --git a/arch/mips/vr41xx/Kconfig b/arch/mips/vr41xx/Kconfig
index eeb089f20c..559acc09c8 100644
--- a/arch/mips/vr41xx/Kconfig
+++ b/arch/mips/vr41xx/Kconfig
@@ -6,6 +6,7 @@ choice
 config CASIO_E55
         bool "CASIO CASSIOPEIA E-10/15/55/65"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select ISA
@@ -15,6 +16,7 @@ config CASIO_E55
 config IBM_WORKPAD
         bool "IBM WorkPad z50"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select ISA
@@ -24,6 +26,7 @@ config IBM_WORKPAD
 config NEC_CMBVR4133
         bool "NEC CMB-VR4133"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select HW_HAS_PCI
@@ -33,6 +36,7 @@ config NEC_CMBVR4133
 config TANBAC_TB022X
         bool "TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select HW_HAS_PCI
@@ -48,6 +52,7 @@ config TANBAC_TB022X
 config VICTOR_MPC30X
         bool "Victor MP-C303/304"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select HW_HAS_PCI
@@ -58,6 +63,7 @@ config VICTOR_MPC30X
 config ZAO_CAPCELLA
         bool "ZAO Networks Capcella"
         select CEVT_R4K
+        select CSRC_R4K
         select DMA_NONCOHERENT
         select IRQ_CPU
         select HW_HAS_PCI
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index fcd333c391..c64f3037a1 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc832x_mds.dts
@@ -57,12 +57,19 @@
                 };
 
                 i2c@3000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
                         device_type = "i2c";
                         compatible = "fsl-i2c";
                         reg = <3000 100>;
                         interrupts = <e 8>;
                         interrupt-parent = < &ipic >;
                         dfsrr;
+
+                        rtc@68 {
+                                compatible = "dallas,ds1374";
+                                reg = <68>;
+                        };
                 };
 
                 serial@4500 {
@@ -104,7 +111,7 @@
                         reg = <700 100>;
                         device_type = "ipic";
                 };
-                
+
                 par_io@1400 {
                         reg = <1400 100>;
                         device_type = "par_io";
@@ -117,7 +124,6 @@
                                         3  5  1  0  2  0  /* MDC */
                                         0  d  2  0  1  0        /* RX_CLK (CLK9) */
                                         3 18  2  0  1  0        /* TX_CLK (CLK10) */
-                                        1  1  1  0  1  0        /* TxD1 */
                                         1  0  1  0  1  0        /* TxD0 */
                                         1  1  1  0  1  0        /* TxD1 */
                                         1  2  1  0  1  0        /* TxD2 */
@@ -165,11 +171,11 @@
                 reg = <e0100000 480>;
                 brg-frequency = <0>;
                 bus-frequency = <BCD3D80>;
-                
+
                 muram@10000 {
                         device_type = "muram";
                         ranges = <0 00010000 00004000>;
-        
+
                         data-only@0 {
                                 reg = <0 4000>;
                         };
@@ -228,7 +234,7 @@
                         compatible = "ucc_geth";
                         model = "UCC";
                         device-id = <4>;
-                        reg = <3000 200>;
+                        reg = <3200 200>;
                         interrupts = <23>;
                         interrupt-parent = < &qeic >;
                         /*
diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts
index e5a84ef9f4..49363f89cb 100644
--- a/arch/powerpc/boot/dts/mpc834x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc834x_mds.dts
@@ -57,15 +57,24 @@
                 };
 
                 i2c@3000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
                         device_type = "i2c";
                         compatible = "fsl-i2c";
                         reg = <3000 100>;
                         interrupts = <e 8>;
                         interrupt-parent = < &ipic >;
                         dfsrr;
+
+                        rtc@68 {
+                                compatible = "dallas,ds1374";
+                                reg = <68>;
+                        };
                 };
 
                 i2c@3100 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
                         device_type = "i2c";
                         compatible = "fsl-i2c";
                         reg = <3100 100>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index fbd1573c34..0b2d2b588d 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc836x_mds.dts
@@ -62,15 +62,24 @@
                 };
 
                 i2c@3000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
                         device_type = "i2c";
                         compatible = "fsl-i2c";
                         reg = <3000 100>;
                         interrupts = <e 8>;
                         interrupt-parent = < &ipic >;
                         dfsrr;
+
+                        rtc@68 {
+                                compatible = "dallas,ds1374";
+                                reg = <68>;
+                        };
                 };
 
                 i2c@3100 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
                         device_type = "i2c";
                         compatible = "fsl-i2c";
                         reg = <3100 100>;
diff --git a/arch/powerpc/boot/dts/mpc8544ds.dts b/arch/powerpc/boot/dts/mpc8544ds.dts
index 3f9d15cf13..6c608de1fc 100644
--- a/arch/powerpc/boot/dts/mpc8544ds.dts
+++ b/arch/powerpc/boot/dts/mpc8544ds.dts
@@ -272,24 +272,24 @@
                 clock-frequency = <1fca055>;
                 interrupt-parent = <&mpic>;
                 interrupts = <1b 2>;
-                interrupt-map-mask = <fb00 0 0 0>;
+                interrupt-map-mask = <ff00 0 0 1>;
                 interrupt-map = <
                         // IDSEL 0x1c  USB
-                        e000 0 0 0 &i8259 c 2
-                        e100 0 0 0 &i8259 9 2
-                        e200 0 0 0 &i8259 a 2
-                        e300 0 0 0 &i8259 b 2
+                        e000 0 0 1 &i8259 c 2
+                        e100 0 0 1 &i8259 9 2
+                        e200 0 0 1 &i8259 a 2
+                        e300 0 0 1 &i8259 b 2
 
                         // IDSEL 0x1d  Audio
-                        e800 0 0 0 &i8259 6 2
+                        e800 0 0 1 &i8259 6 2
 
                         // IDSEL 0x1e Legacy
-                        f000 0 0 0 &i8259 7 2
-                        f100 0 0 0 &i8259 7 2
+                        f000 0 0 1 &i8259 7 2
+                        f100 0 0 1 &i8259 7 2
 
                         // IDSEL 0x1f IDE/SATA
-                        f800 0 0 0 &i8259 e 2
-                        f900 0 0 0 &i8259 5 2
+                        f800 0 0 1 &i8259 e 2
+                        f900 0 0 1 &i8259 5 2
                 >;
 
                 pcie@0 {
diff --git a/arch/powerpc/boot/dts/mpc8572ds.dts b/arch/powerpc/boot/dts/mpc8572ds.dts
index d638deec76..0eb44fb964 100644
--- a/arch/powerpc/boot/dts/mpc8572ds.dts
+++ b/arch/powerpc/boot/dts/mpc8572ds.dts
@@ -219,36 +219,120 @@
                 clock-frequency = <1fca055>;
                 interrupt-parent = <&mpic>;
                 interrupts = <18 2>;
-                interrupt-map-mask = <fb00 0 0 0>;
+                interrupt-map-mask = <ff00 0 0 7>;
                 interrupt-map = <
-                        /* IDSEL 0x11 - PCI slot 1 */
+                        /* IDSEL 0x11 func 0 - PCI slot 1 */
                         8800 0 0 1 &mpic 2 1
                         8800 0 0 2 &mpic 3 1
                         8800 0 0 3 &mpic 4 1
                         8800 0 0 4 &mpic 1 1
 
-                        /* IDSEL 0x12 - PCI slot 2 */
+                        /* IDSEL 0x11 func 1 - PCI slot 1 */
+                        8900 0 0 1 &mpic 2 1
+                        8900 0 0 2 &mpic 3 1
+                        8900 0 0 3 &mpic 4 1
+                        8900 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 2 - PCI slot 1 */
+                        8a00 0 0 1 &mpic 2 1
+                        8a00 0 0 2 &mpic 3 1
+                        8a00 0 0 3 &mpic 4 1
+                        8a00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 3 - PCI slot 1 */
+                        8b00 0 0 1 &mpic 2 1
+                        8b00 0 0 2 &mpic 3 1
+                        8b00 0 0 3 &mpic 4 1
+                        8b00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 4 - PCI slot 1 */
+                        8c00 0 0 1 &mpic 2 1
+                        8c00 0 0 2 &mpic 3 1
+                        8c00 0 0 3 &mpic 4 1
+                        8c00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 5 - PCI slot 1 */
+                        8d00 0 0 1 &mpic 2 1
+                        8d00 0 0 2 &mpic 3 1
+                        8d00 0 0 3 &mpic 4 1
+                        8d00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 6 - PCI slot 1 */
+                        8e00 0 0 1 &mpic 2 1
+                        8e00 0 0 2 &mpic 3 1
+                        8e00 0 0 3 &mpic 4 1
+                        8e00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 7 - PCI slot 1 */
+                        8f00 0 0 1 &mpic 2 1
+                        8f00 0 0 2 &mpic 3 1
+                        8f00 0 0 3 &mpic 4 1
+                        8f00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x12 func 0 - PCI slot 2 */
                         9000 0 0 1 &mpic 3 1
                         9000 0 0 2 &mpic 4 1
                         9000 0 0 3 &mpic 1 1
                         9000 0 0 4 &mpic 2 1
 
+                        /* IDSEL 0x12 func 1 - PCI slot 2 */
+                        9100 0 0 1 &mpic 3 1
+                        9100 0 0 2 &mpic 4 1
+                        9100 0 0 3 &mpic 1 1
+                        9100 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 2 - PCI slot 2 */
+                        9200 0 0 1 &mpic 3 1
+                        9200 0 0 2 &mpic 4 1
+                        9200 0 0 3 &mpic 1 1
+                        9200 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 3 - PCI slot 2 */
+                        9300 0 0 1 &mpic 3 1
+                        9300 0 0 2 &mpic 4 1
+                        9300 0 0 3 &mpic 1 1
+                        9300 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 4 - PCI slot 2 */
+                        9400 0 0 1 &mpic 3 1
+                        9400 0 0 2 &mpic 4 1
+                        9400 0 0 3 &mpic 1 1
+                        9400 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 5 - PCI slot 2 */
+                        9500 0 0 1 &mpic 3 1
+                        9500 0 0 2 &mpic 4 1
+                        9500 0 0 3 &mpic 1 1
+                        9500 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 6 - PCI slot 2 */
+                        9600 0 0 1 &mpic 3 1
+                        9600 0 0 2 &mpic 4 1
+                        9600 0 0 3 &mpic 1 1
+                        9600 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 7 - PCI slot 2 */
+                        9700 0 0 1 &mpic 3 1
+                        9700 0 0 2 &mpic 4 1
+                        9700 0 0 3 &mpic 1 1
+                        9700 0 0 4 &mpic 2 1
+
                         // IDSEL 0x1c  USB
-                        e000 0 0 0 &i8259 c 2
-                        e100 0 0 0 &i8259 9 2
-                        e200 0 0 0 &i8259 a 2
-                        e300 0 0 0 &i8259 b 2
+                        e000 0 0 1 &i8259 c 2
+                        e100 0 0 1 &i8259 9 2
+                        e200 0 0 1 &i8259 a 2
+                        e300 0 0 1 &i8259 b 2
 
                         // IDSEL 0x1d  Audio
-                        e800 0 0 0 &i8259 6 2
+                        e800 0 0 1 &i8259 6 2
 
                         // IDSEL 0x1e Legacy
-                        f000 0 0 0 &i8259 7 2
-                        f100 0 0 0 &i8259 7 2
+                        f000 0 0 1 &i8259 7 2
+                        f100 0 0 1 &i8259 7 2
 
                         // IDSEL 0x1f IDE/SATA
-                        f800 0 0 0 &i8259 e 2
-                        f900 0 0 0 &i8259 5 2
+                        f800 0 0 1 &i8259 e 2
+                        f900 0 0 1 &i8259 5 2
 
                         >;
 
diff --git a/arch/powerpc/boot/dts/mpc8641_hpcn.dts b/arch/powerpc/boot/dts/mpc8641_hpcn.dts
index 367765937a..abb26dc425 100644
--- a/arch/powerpc/boot/dts/mpc8641_hpcn.dts
+++ b/arch/powerpc/boot/dts/mpc8641_hpcn.dts
@@ -235,36 +235,120 @@
                 clock-frequency = <1fca055>;
                 interrupt-parent = <&mpic>;
                 interrupts = <18 2>;
-                interrupt-map-mask = <fb00 0 0 0>;
+                interrupt-map-mask = <ff00 0 0 7>;
                 interrupt-map = <
-                        /* IDSEL 0x11 */
-                        8800 0 0 1 &i8259 9 2
-                        8800 0 0 2 &i8259 a 2
-                        8800 0 0 3 &i8259 b 2
-                        8800 0 0 4 &i8259 c 2
-
-                        /* IDSEL 0x12 */
-                        9000 0 0 1 &i8259 a 2
-                        9000 0 0 2 &i8259 b 2
-                        9000 0 0 3 &i8259 c 2
-                        9000 0 0 4 &i8259 9 2
+                        /* IDSEL 0x11 func 0 - PCI slot 1 */
+                        8800 0 0 1 &mpic 2 1
+                        8800 0 0 2 &mpic 3 1
+                        8800 0 0 3 &mpic 4 1
+                        8800 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 1 - PCI slot 1 */
+                        8900 0 0 1 &mpic 2 1
+                        8900 0 0 2 &mpic 3 1
+                        8900 0 0 3 &mpic 4 1
+                        8900 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 2 - PCI slot 1 */
+                        8a00 0 0 1 &mpic 2 1
+                        8a00 0 0 2 &mpic 3 1
+                        8a00 0 0 3 &mpic 4 1
+                        8a00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 3 - PCI slot 1 */
+                        8b00 0 0 1 &mpic 2 1
+                        8b00 0 0 2 &mpic 3 1
+                        8b00 0 0 3 &mpic 4 1
+                        8b00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 4 - PCI slot 1 */
+                        8c00 0 0 1 &mpic 2 1
+                        8c00 0 0 2 &mpic 3 1
+                        8c00 0 0 3 &mpic 4 1
+                        8c00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 5 - PCI slot 1 */
+                        8d00 0 0 1 &mpic 2 1
+                        8d00 0 0 2 &mpic 3 1
+                        8d00 0 0 3 &mpic 4 1
+                        8d00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 6 - PCI slot 1 */
+                        8e00 0 0 1 &mpic 2 1
+                        8e00 0 0 2 &mpic 3 1
+                        8e00 0 0 3 &mpic 4 1
+                        8e00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x11 func 7 - PCI slot 1 */
+                        8f00 0 0 1 &mpic 2 1
+                        8f00 0 0 2 &mpic 3 1
+                        8f00 0 0 3 &mpic 4 1
+                        8f00 0 0 4 &mpic 1 1
+
+                        /* IDSEL 0x12 func 0 - PCI slot 2 */
+                        9000 0 0 1 &mpic 3 1
+                        9000 0 0 2 &mpic 4 1
+                        9000 0 0 3 &mpic 1 1
+                        9000 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 1 - PCI slot 2 */
+                        9100 0 0 1 &mpic 3 1
+                        9100 0 0 2 &mpic 4 1
+                        9100 0 0 3 &mpic 1 1
+                        9100 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 2 - PCI slot 2 */
+                        9200 0 0 1 &mpic 3 1
+                        9200 0 0 2 &mpic 4 1
+                        9200 0 0 3 &mpic 1 1
+                        9200 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 3 - PCI slot 2 */
+                        9300 0 0 1 &mpic 3 1
+                        9300 0 0 2 &mpic 4 1
+                        9300 0 0 3 &mpic 1 1
+                        9300 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 4 - PCI slot 2 */
+                        9400 0 0 1 &mpic 3 1
+                        9400 0 0 2 &mpic 4 1
+                        9400 0 0 3 &mpic 1 1
+                        9400 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 5 - PCI slot 2 */
+                        9500 0 0 1 &mpic 3 1
+                        9500 0 0 2 &mpic 4 1
+                        9500 0 0 3 &mpic 1 1
+                        9500 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 6 - PCI slot 2 */
+                        9600 0 0 1 &mpic 3 1
+                        9600 0 0 2 &mpic 4 1
+                        9600 0 0 3 &mpic 1 1
+                        9600 0 0 4 &mpic 2 1
+
+                        /* IDSEL 0x12 func 7 - PCI slot 2 */
+                        9700 0 0 1 &mpic 3 1
+                        9700 0 0 2 &mpic 4 1
+                        9700 0 0 3 &mpic 1 1
+                        9700 0 0 4 &mpic 2 1
 
                         // IDSEL 0x1c  USB
-                        e000 0 0 0 &i8259 c 2
-                        e100 0 0 0 &i8259 9 2
-                        e200 0 0 0 &i8259 a 2
-                        e300 0 0 0 &i8259 b 2
+                        e000 0 0 1 &i8259 c 2
+                        e100 0 0 1 &i8259 9 2
+                        e200 0 0 1 &i8259 a 2
+                        e300 0 0 1 &i8259 b 2
 
                         // IDSEL 0x1d  Audio
-                        e800 0 0 0 &i8259 6 2
+                        e800 0 0 1 &i8259 6 2
 
                         // IDSEL 0x1e Legacy
-                        f000 0 0 0 &i8259 7 2
-                        f100 0 0 0 &i8259 7 2
+                        f000 0 0 1 &i8259 7 2
+                        f100 0 0 1 &i8259 7 2
 
                         // IDSEL 0x1f IDE/SATA
-                        f800 0 0 0 &i8259 e 2
-                        f900 0 0 0 &i8259 5 2
+                        f800 0 0 1 &i8259 e 2
+                        f900 0 0 1 &i8259 5 2
                         >;
 
                 pcie@0 {
diff --git a/arch/powerpc/configs/mpc832x_mds_defconfig b/arch/powerpc/configs/mpc832x_mds_defconfig
index dd68d1818d..e069018276 100644
--- a/arch/powerpc/configs/mpc832x_mds_defconfig
+++ b/arch/powerpc/configs/mpc832x_mds_defconfig
@@ -774,7 +774,53 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_EDAC is not set
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+CONFIG_RTC_DRV_DS1374=y
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
 
 #
 # DMA Engine support
diff --git a/arch/powerpc/configs/mpc832x_rdb_defconfig b/arch/powerpc/configs/mpc832x_rdb_defconfig
index 4f391028c7..7a5b13f414 100644
--- a/arch/powerpc/configs/mpc832x_rdb_defconfig
+++ b/arch/powerpc/configs/mpc832x_rdb_defconfig
@@ -685,8 +685,21 @@ CONFIG_I2C_MPC=y
 #
 # SPI support
 #
-# CONFIG_SPI is not set
-# CONFIG_SPI_MASTER is not set
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+
+#
+# SPI Master Controller Drivers
+#
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_MPC83xx=y
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_AT25 is not set
+# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_TLE62X0 is not set
 # CONFIG_W1 is not set
 # CONFIG_POWER_SUPPLY is not set
 CONFIG_HWMON=y
@@ -710,6 +723,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_GL520SM is not set
 # CONFIG_SENSORS_IT87 is not set
 # CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM70 is not set
 # CONFIG_SENSORS_LM75 is not set
 # CONFIG_SENSORS_LM77 is not set
 # CONFIG_SENSORS_LM78 is not set
@@ -896,7 +910,24 @@ CONFIG_USB_MON=y
 # USB Gadget Support
 #
 # CONFIG_USB_GADGET is not set
-# CONFIG_MMC is not set
+CONFIG_MMC=y
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+
+#
+# MMC/SD Card Drivers
+#
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_SDIO_UART is not set
+
+#
+# MMC/SD Host Controller Drivers
+#
+# CONFIG_MMC_SDHCI is not set
+# CONFIG_MMC_WBSD is not set
+# CONFIG_MMC_TIFM_SD is not set
+CONFIG_MMC_SPI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_EDAC is not set
@@ -1101,9 +1132,9 @@ CONFIG_UCC=y
 CONFIG_BITREVERSE=y
 # CONFIG_CRC_CCITT is not set
 # CONFIG_CRC16 is not set
-# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC_ITU_T=y
 CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
+CONFIG_CRC7=y
 # CONFIG_LIBCRC32C is not set
 CONFIG_PLIST=y
 CONFIG_HAS_IOMEM=y
diff --git a/arch/powerpc/configs/mpc834x_itx_defconfig b/arch/powerpc/configs/mpc834x_itx_defconfig
index eb28dd85cb..ba512d13f3 100644
--- a/arch/powerpc/configs/mpc834x_itx_defconfig
+++ b/arch/powerpc/configs/mpc834x_itx_defconfig
@@ -867,7 +867,7 @@ CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_EHCI_FSL=y
 # CONFIG_USB_ISP116X_HCD is not set
 # CONFIG_USB_OHCI_HCD is not set
-# CONFIG_USB_UHCI_HCD is not set
+CONFIG_USB_UHCI_HCD=y
 # CONFIG_USB_SL811_HCD is not set
 # CONFIG_USB_R8A66597_HCD is not set
 
diff --git a/arch/powerpc/configs/mpc834x_itxgp_defconfig b/arch/powerpc/configs/mpc834x_itxgp_defconfig
index 22b95462c9..9faa948c22 100644
--- a/arch/powerpc/configs/mpc834x_itxgp_defconfig
+++ b/arch/powerpc/configs/mpc834x_itxgp_defconfig
@@ -760,15 +760,101 @@ CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB_ARCH_HAS_EHCI=y
-# CONFIG_USB is not set
+CONFIG_USB=y
+# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
+# CONFIG_USB_DEVICEFS is not set
+CONFIG_USB_DEVICE_CLASS=y
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_OTG is not set
+
+#
+# USB Host Controller Drivers
+#
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_SPLIT_ISO is not set
 CONFIG_USB_EHCI_ROOT_HUB_TT=y
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
 CONFIG_USB_EHCI_FSL=y
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_OHCI_HCD is not set
+CONFIG_USB_UHCI_HCD=y
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_R8A66597_HCD is not set
+
+#
+# USB Device Class drivers
+#
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_PRINTER is not set
 
 #
 # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
 #
 
 #
+# may also be needed; see USB_STORAGE Help for more information
+#
+CONFIG_USB_STORAGE=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_KARMA is not set
+# CONFIG_USB_LIBUSUAL is not set
+
+#
+# USB Imaging devices
+#
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+CONFIG_USB_MON=y
+
+#
+# USB port drivers
+#
+
+#
+# USB Serial Converter support
+#
+# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_ADUTUX is not set
+# CONFIG_USB_AUERSWALD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_BERRY_CHARGE is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_PHIDGET is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
+
+#
+# USB DSL modem support
+#
+
+#
 # USB Gadget Support
 #
 # CONFIG_USB_GADGET is not set
diff --git a/arch/powerpc/configs/mpc834x_mds_defconfig b/arch/powerpc/configs/mpc834x_mds_defconfig
index e59a88e954..356f736a5d 100644
--- a/arch/powerpc/configs/mpc834x_mds_defconfig
+++ b/arch/powerpc/configs/mpc834x_mds_defconfig
@@ -721,7 +721,53 @@ CONFIG_USB_EHCI_FSL=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_EDAC is not set
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+CONFIG_RTC_DRV_DS1374=y
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
 
 #
 # DMA Engine support
diff --git a/arch/powerpc/configs/mpc836x_mds_defconfig b/arch/powerpc/configs/mpc836x_mds_defconfig
index 7565752851..1b4d37570e 100644
--- a/arch/powerpc/configs/mpc836x_mds_defconfig
+++ b/arch/powerpc/configs/mpc836x_mds_defconfig
@@ -773,7 +773,53 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_EDAC is not set
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+CONFIG_RTC_DRV_DS1374=y
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
 
 #
 # DMA Engine support
diff --git a/arch/powerpc/configs/mpc8568mds_defconfig b/arch/powerpc/configs/mpc8568mds_defconfig
index 883d8af9de..d665e7a797 100644
--- a/arch/powerpc/configs/mpc8568mds_defconfig
+++ b/arch/powerpc/configs/mpc8568mds_defconfig
@@ -768,7 +768,53 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_EDAC is not set
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+# CONFIG_RTC_DRV_TEST is not set
+
+#
+# I2C RTC drivers
+#
+# CONFIG_RTC_DRV_DS1307 is not set
+CONFIG_RTC_DRV_DS1374=y
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+
+#
+# SPI RTC drivers
+#
+
+#
+# Platform RTC drivers
+#
+# CONFIG_RTC_DRV_CMOS is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_V3020 is not set
+
+#
+# on-CPU RTC drivers
+#
 
 #
 # DMA Engine support
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 2c8e756d19..d67bcd84f3 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -284,6 +284,10 @@ int main(void)
         DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
         DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
         DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+        DEFINE(CFG_ICACHE_BLOCKSZ, offsetof(struct vdso_data, icache_block_size));
+        DEFINE(CFG_DCACHE_BLOCKSZ, offsetof(struct vdso_data, dcache_block_size));
+        DEFINE(CFG_ICACHE_LOGBLOCKSZ, offsetof(struct vdso_data, icache_log_block_size));
+        DEFINE(CFG_DCACHE_LOGBLOCKSZ, offsetof(struct vdso_data, dcache_log_block_size));
 #ifdef CONFIG_PPC64
         DEFINE(CFG_SYSCALL_MAP64, offsetof(struct vdso_data, syscall_map_64));
         DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 2147807982..053cac19f7 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -19,6 +19,9 @@
 #include <linux/init.h>
 #include <linux/capability.h>
 #include <linux/delay.h>
+#include <linux/smp.h>
+#include <linux/completion.h>
+#include <linux/cpumask.h>
 
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -34,6 +37,8 @@
 #include <asm/lmb.h>
 #include <asm/udbg.h>
 #include <asm/syscalls.h>
+#include <asm/smp.h>
+#include <asm/atomic.h>
 
 struct rtas_t rtas = {
         .lock = SPIN_LOCK_UNLOCKED
@@ -41,8 +46,10 @@ struct rtas_t rtas = {
 EXPORT_SYMBOL(rtas);
 
 struct rtas_suspend_me_data {
-        long waiting;
-        struct rtas_args *args;
+        atomic_t working; /* number of cpus accessing this struct */
+        int token; /* ibm,suspend-me */
+        int error;
+        struct completion *complete; /* wait on this until working == 0 */
 };
 
 DEFINE_SPINLOCK(rtas_data_buf_lock);
@@ -631,18 +638,18 @@ void rtas_halt(void)
 /* Must be in the RMO region, so we place it here */
 static char rtas_os_term_buf[2048];
 
-void rtas_os_term(char *str)
+void rtas_panic_msg(char *str)
 {
-        int status;
+        snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str);
+}
 
-        if (panic_timeout)
-                return;
+void rtas_os_term(void)
+{
+        int status;
 
         if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term"))
                 return;
 
-        snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str);
-
         do {
                 status = rtas_call(rtas_token("ibm,os-term"), 1, 1, NULL,
                                    __pa(rtas_os_term_buf));
@@ -657,50 +664,62 @@ static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE;
 #ifdef CONFIG_PPC_PSERIES
 static void rtas_percpu_suspend_me(void *info)
 {
-        int i;
         long rc;
-        long flags;
+        unsigned long msr_save;
+        int cpu;
         struct rtas_suspend_me_data *data =
                 (struct rtas_suspend_me_data *)info;
 
-        /*
-         * We use "waiting" to indicate our state.  As long
-         * as it is >0, we are still trying to all join up.
-         * If it goes to 0, we have successfully joined up and
-         * one thread got H_CONTINUE.  If any error happens,
-         * we set it to <0.
-         */
-        local_irq_save(flags);
-        do {
-                rc = plpar_hcall_norets(H_JOIN);
-                smp_rmb();
-        } while (rc == H_SUCCESS && data->waiting > 0);
-        if (rc == H_SUCCESS)
-                goto out;
+        atomic_inc(&data->working);
+
+        /* really need to ensure MSR.EE is off for H_JOIN */
+        msr_save = mfmsr();
+        mtmsr(msr_save & ~(MSR_EE));
+
+        rc = plpar_hcall_norets(H_JOIN);
 
-        if (rc == H_CONTINUE) {
-                data->waiting = 0;
-                data->args->args[data->args->nargs] =
-                        rtas_call(ibm_suspend_me_token, 0, 1, NULL);
-                for_each_possible_cpu(i)
-                        plpar_hcall_norets(H_PROD,i);
+        mtmsr(msr_save);
+
+        if (rc == H_SUCCESS) {
+                /* This cpu was prodded and the suspend is complete. */
+                goto out;
+        } else if (rc == H_CONTINUE) {
+                /* All other cpus are in H_JOIN, this cpu does
+                 * the suspend.
+                 */
+                printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n",
+                       smp_processor_id());
+                data->error = rtas_call(data->token, 0, 1, NULL);
+
+                if (data->error)
+                        printk(KERN_DEBUG "ibm,suspend-me returned %d\n",
+                               data->error);
         } else {
-                data->waiting = -EBUSY;
-                printk(KERN_ERR "Error on H_JOIN hypervisor call\n");
+                printk(KERN_ERR "H_JOIN on cpu %i failed with rc = %ld\n",
+                       smp_processor_id(), rc);
+                data->error = rc;
         }
-
+        /* This cpu did the suspend or got an error; in either case,
+         * we need to prod all other other cpus out of join state.
+         * Extra prods are harmless.
+         */
+        for_each_online_cpu(cpu)
+                plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
 out:
-        local_irq_restore(flags);
-        return;
+        if (atomic_dec_return(&data->working) == 0)
+                complete(data->complete);
 }
 
 static int rtas_ibm_suspend_me(struct rtas_args *args)
 {
-        int i;
         long state;
         long rc;
         unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
         struct rtas_suspend_me_data data;
+        DECLARE_COMPLETION_ONSTACK(done);
+
+        if (!rtas_service_present("ibm,suspend-me"))
+                return -ENOSYS;
 
         /* Make sure the state is valid */
         rc = plpar_hcall(H_VASI_STATE, retbuf,
@@ -721,25 +740,23 @@ static int rtas_ibm_suspend_me(struct rtas_args *args)
                 return 0;
         }
 
-        data.waiting = 1;
-        data.args = args;
+        atomic_set(&data.working, 0);
+        data.token = rtas_token("ibm,suspend-me");
+        data.error = 0;
+        data.complete = &done;
 
         /* Call function on all CPUs.  One of us will make the
          * rtas call
          */
         if (on_each_cpu(rtas_percpu_suspend_me, &data, 1, 0))
-                data.waiting = -EINVAL;
+                data.error = -EINVAL;
 
-        if (data.waiting != 0)
-                printk(KERN_ERR "Error doing global join\n");
+        wait_for_completion(&done);
 
-        /* Prod each CPU.  This won't hurt, and will wake
-         * anyone we successfully put to sleep with H_JOIN.
-         */
-        for_each_possible_cpu(i)
-                plpar_hcall_norets(H_PROD, i);
+        if (data.error != 0)
+                printk(KERN_ERR "Error doing global join\n");
 
-        return data.waiting;
+        return data.error;
 }
 #else /* CONFIG_PPC_PSERIES */
 static int rtas_ibm_suspend_me(struct rtas_args *args)
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index c0d77723ba..a925a8eae1 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -241,8 +241,9 @@ void account_system_vtime(struct task_struct *tsk)
                 /* deltascaled includes both user and system time.
                  * Hence scale it based on the purr ratio to estimate
                  * the system time */
-                deltascaled = deltascaled * get_paca()->system_time /
-                        (get_paca()->system_time + get_paca()->user_time);
+                if (get_paca()->user_time)
+                        deltascaled = deltascaled * get_paca()->system_time /
+                             (get_paca()->system_time + get_paca()->user_time);
                 delta += get_paca()->system_time;
                 get_paca()->system_time = 0;
         }
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 2322ba5cce..3702df7dc5 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -699,11 +699,22 @@ static int __init vdso_init(void)
         vdso_data->icache_size = ppc64_caches.isize;
         vdso_data->icache_line_size = ppc64_caches.iline_size;
 
+        /* XXXOJN: Blocks should be added to ppc64_caches and used instead */
+        vdso_data->dcache_block_size = ppc64_caches.dline_size;
+        vdso_data->icache_block_size = ppc64_caches.iline_size;
+        vdso_data->dcache_log_block_size = ppc64_caches.log_dline_size;
+        vdso_data->icache_log_block_size = ppc64_caches.log_iline_size;
+
         /*
          * Calculate the size of the 64 bits vDSO
          */
         vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT;
         DBG("vdso64_kbase: %p, 0x%x pages\n", vdso64_kbase, vdso64_pages);
+#else
+        vdso_data->dcache_block_size = L1_CACHE_BYTES;
+        vdso_data->dcache_log_block_size = L1_CACHE_SHIFT;
+        vdso_data->icache_block_size = L1_CACHE_BYTES;
+        vdso_data->icache_log_block_size = L1_CACHE_SHIFT;
 #endif /* CONFIG_PPC64 */
 
 
diff --git a/arch/powerpc/kernel/vdso32/cacheflush.S b/arch/powerpc/kernel/vdso32/cacheflush.S
index 9cb319992c..1ba6feb71b 100644
--- a/arch/powerpc/kernel/vdso32/cacheflush.S
+++ b/arch/powerpc/kernel/vdso32/cacheflush.S
@@ -23,29 +23,46 @@
  *
  * Flushes the data cache & invalidate the instruction cache for the
  * provided range [start, end[
- *
- * Note: all CPUs supported by this kernel have a 128 bytes cache
- * line size so we don't have to peek that info from the datapage
  */
 V_FUNCTION_BEGIN(__kernel_sync_dicache)
   .cfi_startproc
-        li      r5,127
-        andc    r6,r3,r5                /* round low to line bdy */
+        mflr    r12
+  .cfi_register lr,r12
+        mr      r11,r3
+        bl      __get_datapage@local
+        mtlr    r12
+        mr      r10,r3
+
+        lwz     r7,CFG_DCACHE_BLOCKSZ(r10)
+        addi    r5,r7,-1
+        andc    r6,r11,r5               /* round low to line bdy */
         subf    r8,r6,r4                /* compute length */
         add     r8,r8,r5                /* ensure we get enough */
-        srwi.   r8,r8,7                 /* compute line count */
+        lwz     r9,CFG_DCACHE_LOGBLOCKSZ(r10)
+        srw.    r8,r8,r9                /* compute line count */
         crclr   cr0*4+so
         beqlr                           /* nothing to do? */
         mtctr   r8
-        mr      r3,r6
-1:      dcbst   0,r3
-        addi    r3,r3,128
+1:      dcbst   0,r6
+        add     r6,r6,r7
         bdnz    1b
         sync
+
+/* Now invalidate the instruction cache */
+
+        lwz     r7,CFG_ICACHE_BLOCKSZ(r10)
+        addi    r5,r7,-1
+        andc    r6,r11,r5               /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5
+        lwz     r9,CFG_ICACHE_LOGBLOCKSZ(r10)
+        srw.    r8,r8,r9                /* compute line count */
+        crclr   cr0*4+so
+        beqlr                           /* nothing to do? */
         mtctr   r8
-1:      icbi    0,r6
-        addi    r6,r6,128
-        bdnz    1b
+2:      icbi    0,r6
+        add     r6,r6,r7
+        bdnz    2b
         isync
         li      r3,0
         blr
diff --git a/arch/powerpc/kernel/vdso64/cacheflush.S b/arch/powerpc/kernel/vdso64/cacheflush.S
index 66a36d3cc6..69c5af2b3c 100644
--- a/arch/powerpc/kernel/vdso64/cacheflush.S
+++ b/arch/powerpc/kernel/vdso64/cacheflush.S
@@ -23,29 +23,46 @@
  *
  * Flushes the data cache & invalidate the instruction cache for the
  * provided range [start, end[
- *
- * Note: all CPUs supported by this kernel have a 128 bytes cache
- * line size so we don't have to peek that info from the datapage
  */
 V_FUNCTION_BEGIN(__kernel_sync_dicache)
   .cfi_startproc
-        li      r5,127
-        andc    r6,r3,r5                /* round low to line bdy */
+        mflr    r12
+  .cfi_register lr,r12
+        mr      r11,r3
+        bl      V_LOCAL_FUNC(__get_datapage)
+        mtlr    r12
+        mr      r10,r3
+
+        lwz     r7,CFG_DCACHE_BLOCKSZ(r10)
+        addi    r5,r7,-1
+        andc    r6,r11,r5               /* round low to line bdy */
         subf    r8,r6,r4                /* compute length */
         add     r8,r8,r5                /* ensure we get enough */
-        srwi.   r8,r8,7                 /* compute line count */
+        lwz     r9,CFG_DCACHE_LOGBLOCKSZ(r10)
+        srw.    r8,r8,r9                /* compute line count */
         crclr   cr0*4+so
         beqlr                           /* nothing to do? */
         mtctr   r8
-        mr      r3,r6
-1:      dcbst   0,r3
-        addi    r3,r3,128
+1:      dcbst   0,r6
+        add     r6,r6,r7
         bdnz    1b
         sync
+
+/* Now invalidate the instruction cache */
+
+        lwz     r7,CFG_ICACHE_BLOCKSZ(r10)
+        addi    r5,r7,-1
+        andc    r6,r11,r5               /* round low to line bdy */
+        subf    r8,r6,r4                /* compute length */
+        add     r8,r8,r5
+        lwz     r9,CFG_ICACHE_LOGBLOCKSZ(r10)
+        srw.    r8,r8,r9                /* compute line count */
+        crclr   cr0*4+so
+        beqlr                           /* nothing to do? */
         mtctr   r8
-1:      icbi    0,r6
-        addi    r6,r6,128
-        bdnz    1b
+2:      icbi    0,r6
+        add     r6,r6,r7
+        bdnz    2b
         isync
         li      r3,0
         blr
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 81eb96ec13..5402fb6b3a 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -464,7 +464,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
                  * we invalidate the TLB here, thus avoiding dcbst
                  * misbehaviour.
                  */
-                _tlbie(address);
+                _tlbie(address, 0 /* 8xx doesn't care about PID */);
 #endif
                 if (!PageReserved(page)
                     && !test_bit(PG_arch_1, &page->flags)) {
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index eb3a732e91..ebfd13dc9d 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -56,7 +56,7 @@ extern unsigned long total_lowmem;
  * architectures.  -- Dan
  */
 #if defined(CONFIG_8xx)
-#define flush_HPTE(X, va, pg)   _tlbie(va)
+#define flush_HPTE(X, va, pg)   _tlbie(va, 0 /* 8xx doesn't care about PID */)
 #define MMU_init_hw()           do { } while(0)
 #define mmu_mapin_ram()         (0UL)
 
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 9e85bda762..50448d5de9 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -20,6 +20,7 @@
 #include <asm/lmb.h>
 #include <asm/abs_addr.h>
 #include <asm/firmware.h>
+#include <asm/iseries/hv_call.h>
 
 struct stab_entry {
         unsigned long esid_data;
diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c
index eb0c136b1c..ff6db24317 100644
--- a/arch/powerpc/platforms/40x/walnut.c
+++ b/arch/powerpc/platforms/40x/walnut.c
@@ -17,12 +17,13 @@
  */
 
 #include <linux/init.h>
+#include <linux/of_platform.h>
+
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/time.h>
 #include <asm/uic.h>
-#include <asm/of_platform.h>
 
 static struct of_device_id walnut_of_bus[] = {
         { .compatible = "ibm,plb3", },
diff --git a/arch/powerpc/platforms/44x/bamboo.c b/arch/powerpc/platforms/44x/bamboo.c
index 470e1a3fd7..be23f11218 100644
--- a/arch/powerpc/platforms/44x/bamboo.c
+++ b/arch/powerpc/platforms/44x/bamboo.c
@@ -14,12 +14,13 @@
  * option) any later version.
  */
 #include <linux/init.h>
+#include <linux/of_platform.h>
+
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/time.h>
 #include <asm/uic.h>
-#include <asm/of_platform.h>
 #include "44x.h"
 
 static struct of_device_id bamboo_of_bus[] = {
diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c
index 40e18fcb66..6cd3476767 100644
--- a/arch/powerpc/platforms/44x/ebony.c
+++ b/arch/powerpc/platforms/44x/ebony.c
@@ -17,12 +17,13 @@
  */
 
 #include <linux/init.h>
+#include <linux/of_platform.h>
+
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/time.h>
 #include <asm/uic.h>
-#include <asm/of_platform.h>
 
 #include "44x.h"
 
diff --git a/arch/powerpc/platforms/44x/sequoia.c b/arch/powerpc/platforms/44x/sequoia.c
index 30700b31d4..21a9dd14f2 100644
--- a/arch/powerpc/platforms/44x/sequoia.c
+++ b/arch/powerpc/platforms/44x/sequoia.c
@@ -14,12 +14,13 @@
  * option) any later version.
  */
 #include <linux/init.h>
+#include <linux/of_platform.h>
+
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/time.h>
 #include <asm/uic.h>
-#include <asm/of_platform.h>
 #include "44x.h"
 
 static struct of_device_id sequoia_of_bus[] = {
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index 972fa8528a..39ee7a13b2 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
@@ -90,10 +90,11 @@ static void __init mpc832x_sys_setup_arch(void)
 
         if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
                         != NULL){
-                /* Reset the Ethernet PHY */
-                bcsr_regs[9] &= ~0x20;
+                /* Reset the Ethernet PHYs */
+#define BCSR8_FETH_RST 0x50
+                bcsr_regs[8] &= ~BCSR8_FETH_RST;
                 udelay(1000);
-                bcsr_regs[9] |= 0x20;
+                bcsr_regs[8] |= BCSR8_FETH_RST;
                 iounmap(bcsr_regs);
                 of_node_put(np);
         }
@@ -145,30 +146,6 @@ static void __init mpc832x_sys_init_IRQ(void)
 #endif                          /* CONFIG_QUICC_ENGINE */
 }
 
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc832x_rtc_hookup(void)
-{
-        struct timespec tv;
-
-        if (!machine_is(mpc832x_mds))
-                return 0;
-
-        ppc_md.get_rtc_time = ds1374_get_rtc_time;
-        ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
-        tv.tv_nsec = 0;
-        tv.tv_sec = (ppc_md.get_rtc_time) ();
-        do_settimeofday(&tv);
-
-        return 0;
-}
-
-late_initcall(mpc832x_rtc_hookup);
-#endif
-
 /*
  * Called very early, MMU is off, device-tree isn't unflattened
  */
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index fbca336aa0..d4bd04001b 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -15,7 +15,10 @@
  */
 
 #include <linux/pci.h>
+#include <linux/interrupt.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/mmc_spi.h>
+#include <linux/mmc/host.h>
 
 #include <asm/of_platform.h>
 #include <asm/time.h>
@@ -46,15 +49,16 @@ static void mpc83xx_spi_deactivate_cs(u8 cs, u8 polarity)
         par_io_data_set(3, 13, !polarity);
 }
 
+static struct mmc_spi_platform_data mpc832x_mmc_pdata = {
+        .ocr_mask = MMC_VDD_33_34,
+};
+
 static struct spi_board_info mpc832x_spi_boardinfo = {
         .bus_num = 0x4c0,
         .chip_select = 0,
         .max_speed_hz = 50000000,
-        /*
-         * XXX: This is spidev (spi in userspace) stub, should
-         * be replaced by "mmc_spi" when mmc_spi will hit mainline.
-         */
-        .modalias = "spidev",
+        .modalias = "mmc_spi",
+        .platform_data = &mpc832x_mmc_pdata,
 };
 
 static int __init mpc832x_spi_init(void)
diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
index 00aed7c226..a81bb3ce6b 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -106,30 +106,6 @@ static void __init mpc834x_mds_init_IRQ(void)
         ipic_set_default_priority();
 }
 
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc834x_rtc_hookup(void)
-{
-        struct timespec tv;
-
-        if (!machine_is(mpc834x_mds))
-                return 0;
-
-        ppc_md.get_rtc_time = ds1374_get_rtc_time;
-        ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
-        tv.tv_nsec = 0;
-        tv.tv_sec = (ppc_md.get_rtc_time) ();
-        do_settimeofday(&tv);
-
-        return 0;
-}
-
-late_initcall(mpc834x_rtc_hookup);
-#endif
-
 /*
  * Called very early, MMU is off, device-tree isn't unflattened
  */
diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index 0f3855c95f..e40012f8f4 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c
@@ -96,14 +96,39 @@ static void __init mpc836x_mds_setup_arch(void)
 
         if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
                         != NULL){
+                uint svid;
+
                 /* Reset the Ethernet PHY */
-                bcsr_regs[9] &= ~0x20;
+#define BCSR9_GETHRST 0x20
+                clrbits8(&bcsr_regs[9], BCSR9_GETHRST);
                 udelay(1000);
-                bcsr_regs[9] |= 0x20;
+                setbits8(&bcsr_regs[9], BCSR9_GETHRST);
+
+                /* handle mpc8360ea rev.2.1 erratum 2: RGMII Timing */
+                svid = mfspr(SPRN_SVR);
+                if (svid == 0x80480021) {
+                        void __iomem *immap;
+
+                        immap = ioremap(get_immrbase() + 0x14a8, 8);
+
+                        /*
+                         * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
+                         * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
+                         */
+                        setbits32(immap, 0x0c003000);
+
+                        /*
+                         * IMMR + 0x14AC[20:27] = 10101010
+                         * (data delay for both UCC's)
+                         */
+                        clrsetbits_be32(immap + 4, 0xff0, 0xaa0);
+
+                        iounmap(immap);
+                }
+
                 iounmap(bcsr_regs);
                 of_node_put(np);
         }
-
 #endif                          /* CONFIG_QUICC_ENGINE */
 }
 
@@ -152,30 +177,6 @@ static void __init mpc836x_mds_init_IRQ(void)
 #endif                          /* CONFIG_QUICC_ENGINE */
 }
 
-#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
-extern ulong ds1374_get_rtc_time(void);
-extern int ds1374_set_rtc_time(ulong);
-
-static int __init mpc8360_rtc_hookup(void)
-{
-        struct timespec tv;
-
-        if (!machine_is(mpc836x_mds))
-                return 0;
-
-        ppc_md.get_rtc_time = ds1374_get_rtc_time;
-        ppc_md.set_rtc_time = ds1374_set_rtc_time;
-
-        tv.tv_nsec = 0;
-        tv.tv_sec = (ppc_md.get_rtc_time) ();
-        do_settimeofday(&tv);
-
-        return 0;
-}
-
-late_initcall(mpc8360_rtc_hookup);
-#endif
-
 /*
  * Called very early, MMU is off, device-tree isn't unflattened
  */
diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
index eafe7605cd..b45160f8d0 100644
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -130,7 +130,7 @@ int mpc831x_usb_cfg(void)
         out_be32(immap + MPC83XX_SCCR_OFFS, temp);
 
         /* Configure pin mux for ULPI.  There is no pin mux for UTMI */
-        if (!strcmp(prop, "ulpi")) {
+        if (prop && !strcmp(prop, "ulpi")) {
                 temp = in_be32(immap + MPC83XX_SICRL_OFFS);
                 temp &= ~MPC831X_SICRL_USB_MASK;
                 temp |= MPC831X_SICRL_USB_ULPI;
@@ -153,13 +153,13 @@ int mpc831x_usb_cfg(void)
         usb_regs = ioremap(res.start, res.end - res.start + 1);
 
         /* Using on-chip PHY */
-        if (!strcmp(prop, "utmi_wide") ||
-                        !strcmp(prop, "utmi")) {
+        if (prop && (!strcmp(prop, "utmi_wide") ||
+                     !strcmp(prop, "utmi"))) {
                 /* Set UTMI_PHY_EN, REFSEL to 48MHZ */
                 out_be32(usb_regs + FSL_USB2_CONTROL_OFFS,
                                 CONTROL_UTMI_PHY_EN | CONTROL_REFSEL_48MHZ);
         /* Using external UPLI PHY */
-        } else if (!strcmp(prop, "ulpi")) {
+        } else if (prop && !strcmp(prop, "ulpi")) {
                 /* Set PHY_CLK_SEL to ULPI */
                 temp = CONTROL_PHY_CLK_SEL_ULPI;
 #ifdef CONFIG_USB_OTG
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 0966d093db..c0e968a4c2 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -171,6 +171,7 @@ static int spufs_rmdir(struct inode *parent, struct dentry *dir)
 {
         /* remove all entries */
         spufs_prune_dir(dir);
+        d_drop(dir);
 
         return simple_rmdir(parent, dir);
 }
diff --git a/arch/powerpc/platforms/embedded6xx/prpmc2800.c b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
index e484cac750..653a5eb91c 100644
--- a/arch/powerpc/platforms/embedded6xx/prpmc2800.c
+++ b/arch/powerpc/platforms/embedded6xx/prpmc2800.c
@@ -144,6 +144,7 @@ static int __init prpmc2800_probe(void)
                 strncpy(prpmc2800_platform_name, m,
                         min((int)len, PLATFORM_NAME_MAX - 1));
 
+        _set_L2CR(_get_L2CR() | L2CR_L2E);
         return 1;
 }
 
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3a5d112af5..3d62060498 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -214,7 +214,7 @@ static __init void pas_init_IRQ(void)
         printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
 
         mpic = mpic_alloc(mpic_node, openpic_addr,
-                          MPIC_PRIMARY|MPIC_LARGE_VECTORS|MPIC_WANTS_RESET,
+                          MPIC_PRIMARY|MPIC_LARGE_VECTORS,
                           0, 0, " PAS-OPIC  ");
         BUG_ON(!mpic);
 
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 16e4e401b8..306a9d0749 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -21,7 +21,7 @@ config PPC_SPLPAR
 
 config EEH
         bool "PCI Extended Error Handling (EEH)" if EMBEDDED
-        depends on PPC_PSERIES
+        depends on PPC_PSERIES && PCI
         default y if !EMBEDDED
 
 config SCANLOG
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index fdb9b1c8f9..fdeefe54ea 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -507,7 +507,8 @@ define_machine(pseries) {
         .restart                = rtas_restart,
         .power_off              = pSeries_power_off,
         .halt                   = rtas_halt,
-        .panic                  = rtas_os_term,
+        .panic                  = rtas_panic_msg,
+        .machine_shutdown       = rtas_os_term,
         .get_boot_time          = rtas_get_boot_time,
         .get_rtc_time           = rtas_get_rtc_time,
         .set_rtc_time           = rtas_set_rtc_time,
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 5149716c73..847a5496b8 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -97,6 +97,22 @@ static void uic_ack_irq(unsigned int virq)
         spin_unlock_irqrestore(&uic->lock, flags);
 }
 
+static void uic_mask_ack_irq(unsigned int virq)
+{
+        struct uic *uic = get_irq_chip_data(virq);
+        unsigned int src = uic_irq_to_hw(virq);
+        unsigned long flags;
+        u32 er, sr;
+
+        sr = 1 << (31-src);
+        spin_lock_irqsave(&uic->lock, flags);
+        er = mfdcr(uic->dcrbase + UIC_ER);
+        er &= ~sr;
+        mtdcr(uic->dcrbase + UIC_ER, er);
+        mtdcr(uic->dcrbase + UIC_SR, sr);
+        spin_unlock_irqrestore(&uic->lock, flags);
+}
+
 static int uic_set_irq_type(unsigned int virq, unsigned int flow_type)
 {
         struct uic *uic = get_irq_chip_data(virq);
@@ -152,7 +168,7 @@ static struct irq_chip uic_irq_chip = {
         .typename       = " UIC  ",
         .unmask         = uic_unmask_irq,
         .mask           = uic_mask_irq,
-/*      .mask_ack       = uic_mask_irq_and_ack, */
+        .mask_ack       = uic_mask_ack_irq,
         .ack            = uic_ack_irq,
         .set_type       = uic_set_irq_type,
 };
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index aac88c2f3d..5255bd80aa 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -312,7 +312,14 @@ early_init(int r3, int r4, int r5)
          * Identify the CPU type and fix up code sections
          * that depend on which cpu we have.
          */
+#if defined(CONFIG_440EP) && defined(CONFIG_PPC_FPU)
+        /* We pass the virtual PVR here for 440EP as 440EP and 440GR have
+         * identical PVRs and there is no reliable way to check for the FPU
+         */
+        spec = identify_cpu(offset, (mfspr(SPRN_PVR) | 0x8));
+#else
         spec = identify_cpu(offset, mfspr(SPRN_PVR));
+#endif
         do_feature_fixups(spec->cpu_features,
                           PTRRELOC(&__start___ftr_fixup),
                           PTRRELOC(&__stop___ftr_fixup));
diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c
index 390dd1995c..dd898d3248 100644
--- a/arch/ppc/mm/init.c
+++ b/arch/ppc/mm/init.c
@@ -561,7 +561,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
                  * That means the zeroed TLB has to be invalidated
                  * whenever a page miss occurs.
                  */
-                _tlbie(address);
+                _tlbie(address, 0 /* 8xx doesn't care about PID */);
 #endif
                 if (!PageReserved(page)
                     && !test_bit(PG_arch_1, &page->flags)) {
diff --git a/arch/ppc/mm/mmu_decl.h b/arch/ppc/mm/mmu_decl.h
index f1d4f2109a..b298b60c20 100644
--- a/arch/ppc/mm/mmu_decl.h
+++ b/arch/ppc/mm/mmu_decl.h
@@ -49,7 +49,7 @@ extern unsigned int num_tlbcam_entries;
  * architectures.  -- Dan
  */
 #if defined(CONFIG_8xx)
-#define flush_HPTE(X, va, pg)   _tlbie(va)
+#define flush_HPTE(X, va, pg)   _tlbie(va, 0 /* 8xx doesn't care about PID */)
 #define MMU_init_hw()           do { } while(0)
 #define mmu_mapin_ram()         (0UL)
 
diff --git a/arch/ppc/platforms/4xx/yucca.c b/arch/ppc/platforms/4xx/yucca.c
index a83b0baea0..66a44ff0d9 100644
--- a/arch/ppc/platforms/4xx/yucca.c
+++ b/arch/ppc/platforms/4xx/yucca.c
@@ -211,6 +211,7 @@ static void __init yucca_setup_pcie_fpga_rootpoint(int port)
                 break;
 
         default:
+                iounmap(pcie_reg_fpga_base);
                 return;
         }
 
diff --git a/arch/ppc/syslib/virtex_devices.c b/arch/ppc/syslib/virtex_devices.c
index ace4ec08de..f658ff3b38 100644
--- a/arch/ppc/syslib/virtex_devices.c
+++ b/arch/ppc/syslib/virtex_devices.c
@@ -87,6 +87,29 @@
         }, \
 }
 
+#define XPAR_AC97_CONTROLLER_REFERENCE(num) { \
+        .name = "ml403_ac97cr", \
+        .id = num, \
+        .num_resources = 3, \
+        .resource = (struct resource[]) { \
+                { \
+                        .start = XPAR_OPB_AC97_CONTROLLER_REF_##num##_BASEADDR, \
+                        .end = XPAR_OPB_AC97_CONTROLLER_REF_##num##_HIGHADDR, \
+                        .flags = IORESOURCE_MEM, \
+                }, \
+                { \
+                        .start = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_##num##_PLAYBACK_INTERRUPT_INTR, \
+                        .end = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_##num##_PLAYBACK_INTERRUPT_INTR, \
+                        .flags = IORESOURCE_IRQ, \
+                }, \
+                { \
+                        .start = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_##num##_RECORD_INTERRUPT_INTR, \
+                        .end = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_##num##_RECORD_INTERRUPT_INTR, \
+                        .flags = IORESOURCE_IRQ, \
+                }, \
+        }, \
+}
+
 /* UART 8250 driver platform data table */
 struct plat_serial8250_port virtex_serial_platform_data[] = {
 #if defined(XPAR_UARTNS550_0_BASEADDR)
@@ -173,6 +196,14 @@ struct platform_device virtex_platform_devices[] = {
 #if defined(XPAR_TFT_3_BASEADDR)
         XPAR_TFT(3),
 #endif
+
+        /* AC97 Controller Reference instances */
+#if defined(XPAR_OPB_AC97_CONTROLLER_REF_0_BASEADDR)
+        XPAR_AC97_CONTROLLER_REFERENCE(0),
+#endif
+#if defined(XPAR_OPB_AC97_CONTROLLER_REF_1_BASEADDR)
+        XPAR_AC97_CONTROLLER_REFERENCE(1),
+#endif
 };
 
 /* Early serial support functions */
diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
index 4069b81f7f..db3ae85051 100644
--- a/arch/s390/appldata/appldata.h
+++ b/arch/s390/appldata/appldata.h
@@ -45,7 +45,6 @@ struct appldata_ops {
         int    active;                          /* monitoring status */
 
         /* fill in from here */
-        unsigned int ctl_nr;                    /* sysctl ID */
         char name[APPLDATA_PROC_NAME_LENGTH];   /* name of /proc fs node */
         unsigned char record_nr;                /* Record Nr. for Product ID */
         void (*callback)(void *data);           /* callback function */
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index ac61cf43a7..655d52543e 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -53,29 +53,26 @@ static int appldata_interval_handler(ctl_table *ctl, int write,
 static struct ctl_table_header *appldata_sysctl_header;
 static struct ctl_table appldata_table[] = {
         {
-                .ctl_name       = CTL_APPLDATA_TIMER,
                 .procname       = "timer",
                 .mode           = S_IRUGO | S_IWUSR,
                 .proc_handler   = &appldata_timer_handler,
         },
         {
-                .ctl_name       = CTL_APPLDATA_INTERVAL,
                 .procname       = "interval",
                 .mode           = S_IRUGO | S_IWUSR,
                 .proc_handler   = &appldata_interval_handler,
         },
-        { .ctl_name = 0 }
+        { },
 };
 
 static struct ctl_table appldata_dir_table[] = {
         {
-                .ctl_name       = CTL_APPLDATA,
                 .procname       = appldata_proc_name,
                 .maxlen         = 0,
                 .mode           = S_IRUGO | S_IXUGO,
                 .child          = appldata_table,
         },
-        { .ctl_name = 0 }
+        { },
 };
 
 /*
@@ -441,75 +438,38 @@ out:
  */
 int appldata_register_ops(struct appldata_ops *ops)
 {
-        struct list_head *lh;
-        struct appldata_ops *tmp_ops;
-        int i;
-
-        i = 0;
+        if ((ops->size > APPLDATA_MAX_REC_SIZE) || (ops->size < 0))
+                return -EINVAL;
 
-        if ((ops->size > APPLDATA_MAX_REC_SIZE) ||
-                (ops->size < 0)){
-                P_ERROR("Invalid size of %s record = %i, maximum = %i!\n",
-                        ops->name, ops->size, APPLDATA_MAX_REC_SIZE);
-                return -ENOMEM;
-        }
-        if ((ops->ctl_nr == CTL_APPLDATA) ||
-            (ops->ctl_nr == CTL_APPLDATA_TIMER) ||
-            (ops->ctl_nr == CTL_APPLDATA_INTERVAL)) {
-                P_ERROR("ctl_nr %i already in use!\n", ops->ctl_nr);
-                return -EBUSY;
-        }
-        ops->ctl_table = kzalloc(4*sizeof(struct ctl_table), GFP_KERNEL);
-        if (ops->ctl_table == NULL) {
-                P_ERROR("Not enough memory for %s ctl_table!\n", ops->name);
+        ops->ctl_table = kzalloc(4 * sizeof(struct ctl_table), GFP_KERNEL);
+        if (!ops->ctl_table)
                 return -ENOMEM;
-        }
 
         spin_lock(&appldata_ops_lock);
-        list_for_each(lh, &appldata_ops_list) {
-                tmp_ops = list_entry(lh, struct appldata_ops, list);
-                P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n",
-                        ++i, tmp_ops->name, tmp_ops->ctl_nr);
-                P_DEBUG("Comparing %s (ctl %i) with %s (ctl %i)\n",
-                        tmp_ops->name, tmp_ops->ctl_nr, ops->name,
-                        ops->ctl_nr);
-                if (strncmp(tmp_ops->name, ops->name,
-                                APPLDATA_PROC_NAME_LENGTH) == 0) {
-                        P_ERROR("Name \"%s\" already registered!\n", ops->name);
-                        kfree(ops->ctl_table);
-                        spin_unlock(&appldata_ops_lock);
-                        return -EBUSY;
-                }
-                if (tmp_ops->ctl_nr == ops->ctl_nr) {
-                        P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr);
-                        kfree(ops->ctl_table);
-                        spin_unlock(&appldata_ops_lock);
-                        return -EBUSY;
-                }
-        }
         list_add(&ops->list, &appldata_ops_list);
         spin_unlock(&appldata_ops_lock);
 
-        ops->ctl_table[0].ctl_name = CTL_APPLDATA;
         ops->ctl_table[0].procname = appldata_proc_name;
         ops->ctl_table[0].maxlen   = 0;
         ops->ctl_table[0].mode     = S_IRUGO | S_IXUGO;
         ops->ctl_table[0].child    = &ops->ctl_table[2];
 
-        ops->ctl_table[1].ctl_name = 0;
-
-        ops->ctl_table[2].ctl_name = ops->ctl_nr;
         ops->ctl_table[2].procname = ops->name;
         ops->ctl_table[2].mode     = S_IRUGO | S_IWUSR;
         ops->ctl_table[2].proc_handler = appldata_generic_handler;
         ops->ctl_table[2].data = ops;
 
-        ops->ctl_table[3].ctl_name = 0;
-
         ops->sysctl_header = register_sysctl_table(ops->ctl_table);
-
+        if (!ops->sysctl_header)
+                goto out;
         P_INFO("%s-ops registered!\n", ops->name);
         return 0;
+out:
+        spin_lock(&appldata_ops_lock);
+        list_del(&ops->list);
+        spin_unlock(&appldata_ops_lock);
+        kfree(ops->ctl_table);
+        return -ENOMEM;
 }
 
 /*
@@ -519,15 +479,11 @@ int appldata_register_ops(struct appldata_ops *ops)
  */
 void appldata_unregister_ops(struct appldata_ops *ops)
 {
-        void *table;
         spin_lock(&appldata_ops_lock);
         list_del(&ops->list);
-        /* at that point any incoming access will fail */
-        table = ops->ctl_table;
-        ops->ctl_table = NULL;
         spin_unlock(&appldata_ops_lock);
         unregister_sysctl_table(ops->sysctl_header);
-        kfree(table);
+        kfree(ops->ctl_table);
         P_INFO("%s-ops unregistered!\n", ops->name);
 }
 /********************** module-ops management <END> **************************/
diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
index 697eb30a68..51181ccdb8 100644
--- a/arch/s390/appldata/appldata_mem.c
+++ b/arch/s390/appldata/appldata_mem.c
@@ -147,7 +147,6 @@ static void appldata_get_mem_data(void *data)
 
 
 static struct appldata_ops ops = {
-        .ctl_nr    = CTL_APPLDATA_MEM,
         .name      = "mem",
         .record_nr = APPLDATA_RECORD_MEM_ID,
         .size      = sizeof(struct appldata_mem_data),
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 6c1815a477..4d83443360 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -142,7 +142,6 @@ static void appldata_get_net_sum_data(void *data)
 
 
 static struct appldata_ops ops = {
-        .ctl_nr    = CTL_APPLDATA_NET_SUM,
         .name      = "net_sum",
         .record_nr = APPLDATA_RECORD_NET_SUM_ID,
         .size      = sizeof(struct appldata_net_sum_data),
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 76a15523ae..6b3eafe104 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -82,7 +82,6 @@ struct appldata_os_data {
 static struct appldata_os_data *appldata_os_data;
 
 static struct appldata_ops ops = {
-        .ctl_nr    = CTL_APPLDATA_OS,
         .name      = "os",
         .record_nr = APPLDATA_RECORD_OS_ID,
         .owner     = THIS_MODULE,
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 8bf4ae1150..1b3af7dab8 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -200,7 +200,7 @@ static noinline __init void find_memory_chunks(unsigned long memsize)
                 cc = __tprot(addr);
                 while (cc == old_cc) {
                         addr += CHUNK_INCR;
-                        if (addr >= memsize)
+                        if (memsize && addr >= memsize)
                                 break;
 #ifndef CONFIG_64BIT
                         if (addr == ADDR2G)
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 139ca153d5..b2b2edc40e 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -69,13 +69,31 @@ STACK_SIZE  = 1 << STACK_SHIFT
         basr    %r14,%r1
         .endm
 
-        .macro  LOCKDEP_SYS_EXIT
-        l       %r1,BASED(.Llockdep_sys_exit)
+        .macro  TRACE_IRQS_CHECK
+        tm      SP_PSW(%r15),0x03       # irqs enabled?
+        jz      0f
+        l       %r1,BASED(.Ltrace_irq_on)
         basr    %r14,%r1
+        j       1f
+0:      l       %r1,BASED(.Ltrace_irq_off)
+        basr    %r14,%r1
+1:
         .endm
 #else
 #define TRACE_IRQS_ON
 #define TRACE_IRQS_OFF
+#define TRACE_IRQS_CHECK
+#endif
+
+#ifdef CONFIG_LOCKDEP
+        .macro  LOCKDEP_SYS_EXIT
+        tm      SP_PSW+1(%r15),0x01     # returning to user ?
+        jz      0f
+        l       %r1,BASED(.Llockdep_sys_exit)
+        basr    %r14,%r1
+0:
+        .endm
+#else
 #define LOCKDEP_SYS_EXIT
 #endif
 
@@ -234,8 +252,6 @@ sysc_saveall:
         lh      %r7,0x8a          # get svc number from lowcore
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 sysc_vtime:
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        bz      BASED(sysc_do_svc)
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 sysc_stime:
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
@@ -263,19 +279,34 @@ sysc_do_restart:
 
 sysc_return:
         tm      SP_PSW+1(%r15),0x01     # returning to user ?
-        bno     BASED(sysc_leave)
+        bno     BASED(sysc_restore)
         tm      __TI_flags+3(%r9),_TIF_WORK_SVC
         bnz     BASED(sysc_work)  # there is work to do (signals etc.)
+sysc_restore:
+#ifdef CONFIG_TRACE_IRQFLAGS
+        la      %r1,BASED(sysc_restore_trace_psw)
+        lpsw    0(%r1)
+sysc_restore_trace:
+        TRACE_IRQS_CHECK
         LOCKDEP_SYS_EXIT
+#endif
 sysc_leave:
         RESTORE_ALL __LC_RETURN_PSW,1
+sysc_done:
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+        .align  8
+        .globl  sysc_restore_trace_psw
+sysc_restore_trace_psw:
+        .long   0, sysc_restore_trace + 0x80000000
+#endif
 
 #
 # recheck if there is more work to do
 #
 sysc_work_loop:
         tm      __TI_flags+3(%r9),_TIF_WORK_SVC
-        bz      BASED(sysc_leave)       # there is no work to do
+        bz      BASED(sysc_restore)     # there is no work to do
 #
 # One of the work bits is on. Find out which one.
 #
@@ -290,8 +321,8 @@ sysc_work:
         bo      BASED(sysc_restart)
         tm      __TI_flags+3(%r9),_TIF_SINGLE_STEP
         bo      BASED(sysc_singlestep)
-        LOCKDEP_SYS_EXIT
-        b       BASED(sysc_leave)
+        b       BASED(sysc_restore)
+sysc_work_done:
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
@@ -458,6 +489,7 @@ pgm_check_handler:
 pgm_no_vtime:
 #endif
         l       %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+        TRACE_IRQS_OFF
         l       %r3,__LC_PGM_ILC        # load program interruption code
         la      %r8,0x7f
         nr      %r8,%r3
@@ -497,6 +529,7 @@ pgm_per_std:
 pgm_no_vtime2:
 #endif
         l       %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+        TRACE_IRQS_OFF
         l       %r1,__TI_task(%r9)
         mvc     __THREAD_per+__PER_atmid(2,%r1),__LC_PER_ATMID
         mvc     __THREAD_per+__PER_address(4,%r1),__LC_PER_ADDRESS
@@ -517,15 +550,13 @@ pgm_svcper:
         SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
         CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        bz      BASED(pgm_no_vtime3)
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
         mvc     __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-pgm_no_vtime3:
 #endif
         lh      %r7,0x8a                # get svc number from lowcore
         l       %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+        TRACE_IRQS_OFF
         l       %r1,__TI_task(%r9)
         mvc     __THREAD_per+__PER_atmid(2,%r1),__LC_PER_ATMID
         mvc     __THREAD_per+__PER_address(4,%r1),__LC_PER_ADDRESS
@@ -542,7 +573,7 @@ kernel_per:
         mvi     SP_TRAP+1(%r15),0x28    # set trap indication to pgm check
         la      %r2,SP_PTREGS(%r15)     # address of register-save area
         l       %r1,BASED(.Lhandle_per) # load adr. of per handler
-        la      %r14,BASED(sysc_leave)  # load adr. of system return
+        la      %r14,BASED(sysc_restore)# load adr. of system return
         br      %r1                     # branch to do_single_step
 
 /*
@@ -569,26 +600,38 @@ io_no_vtime:
         l       %r1,BASED(.Ldo_IRQ)     # load address of do_IRQ
         la      %r2,SP_PTREGS(%r15)     # address of register-save area
         basr    %r14,%r1                # branch to standard irq handler
-        TRACE_IRQS_ON
-
 io_return:
         tm      SP_PSW+1(%r15),0x01     # returning to user ?
 #ifdef CONFIG_PREEMPT
         bno     BASED(io_preempt)       # no -> check for preemptive scheduling
 #else
-        bno     BASED(io_leave)         # no-> skip resched & signal
+        bno     BASED(io_restore)       # no-> skip resched & signal
 #endif
         tm      __TI_flags+3(%r9),_TIF_WORK_INT
         bnz     BASED(io_work)          # there is work to do (signals etc.)
+io_restore:
+#ifdef CONFIG_TRACE_IRQFLAGS
+        la      %r1,BASED(io_restore_trace_psw)
+        lpsw    0(%r1)
+io_restore_trace:
+        TRACE_IRQS_CHECK
         LOCKDEP_SYS_EXIT
+#endif
 io_leave:
         RESTORE_ALL __LC_RETURN_PSW,0
 io_done:
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+        .align  8
+        .globl  io_restore_trace_psw
+io_restore_trace_psw:
+        .long   0, io_restore_trace + 0x80000000
+#endif
+
 #ifdef CONFIG_PREEMPT
 io_preempt:
         icm     %r0,15,__TI_precount(%r9)
-        bnz     BASED(io_leave)
+        bnz     BASED(io_restore)
         l       %r1,SP_R15(%r15)
         s       %r1,BASED(.Lc_spsize)
         mvc     SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
@@ -596,14 +639,10 @@ io_preempt:
         lr      %r15,%r1
 io_resume_loop:
         tm      __TI_flags+3(%r9),_TIF_NEED_RESCHED
-        bno     BASED(io_leave)
-        mvc     __TI_precount(4,%r9),BASED(.Lc_pactive)
-        stosm   __SF_EMPTY(%r15),0x03  # reenable interrupts
-        l       %r1,BASED(.Lschedule)
-        basr    %r14,%r1               # call schedule
-        stnsm   __SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
-        xc      __TI_precount(4,%r9),__TI_precount(%r9)
-        b       BASED(io_resume_loop)
+        bno     BASED(io_restore)
+        l       %r1,BASED(.Lpreempt_schedule_irq)
+        la      %r14,BASED(io_resume_loop)
+        br      %r1                     # call schedule
 #endif
 
 #
@@ -627,40 +666,42 @@ io_work_loop:
         bo      BASED(io_reschedule)
         tm      __TI_flags+3(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)
         bnz     BASED(io_sigpending)
-        LOCKDEP_SYS_EXIT
-        b       BASED(io_leave)
+        b       BASED(io_restore)
+io_work_done:
 
 #
 # _TIF_MCCK_PENDING is set, call handler
 #
 io_mcck_pending:
-        TRACE_IRQS_OFF
         l       %r1,BASED(.Ls390_handle_mcck)
         basr    %r14,%r1                # TIF bit will be cleared by handler
-        TRACE_IRQS_ON
         b       BASED(io_work_loop)
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
 #
 io_reschedule:
+        TRACE_IRQS_ON
         l       %r1,BASED(.Lschedule)
         stosm   __SF_EMPTY(%r15),0x03   # reenable interrupts
         basr    %r14,%r1                # call scheduler
         stnsm   __SF_EMPTY(%r15),0xfc   # disable I/O and ext. interrupts
+        TRACE_IRQS_OFF
         tm      __TI_flags+3(%r9),_TIF_WORK_INT
-        bz      BASED(io_leave)         # there is no work to do
+        bz      BASED(io_restore)       # there is no work to do
         b       BASED(io_work_loop)
 
 #
 # _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
 #
 io_sigpending:
+        TRACE_IRQS_ON
         stosm   __SF_EMPTY(%r15),0x03   # reenable interrupts
         la      %r2,SP_PTREGS(%r15)     # load pt_regs
         l       %r1,BASED(.Ldo_signal)
         basr    %r14,%r1                # call do_signal
         stnsm   __SF_EMPTY(%r15),0xfc   # disable I/O and ext. interrupts
+        TRACE_IRQS_OFF
         b       BASED(io_work_loop)
 
 /*
@@ -688,7 +729,6 @@ ext_no_vtime:
         lh      %r3,__LC_EXT_INT_CODE   # get interruption code
         l       %r1,BASED(.Ldo_extint)
         basr    %r14,%r1
-        TRACE_IRQS_ON
         b       BASED(io_return)
 
 __critical_end:
@@ -853,15 +893,15 @@ cleanup_table_system_call:
 cleanup_table_sysc_return:
         .long   sysc_return + 0x80000000, sysc_leave + 0x80000000
 cleanup_table_sysc_leave:
-        .long   sysc_leave + 0x80000000, sysc_work_loop + 0x80000000
+        .long   sysc_leave + 0x80000000, sysc_done + 0x80000000
 cleanup_table_sysc_work_loop:
-        .long   sysc_work_loop + 0x80000000, sysc_reschedule + 0x80000000
+        .long   sysc_work_loop + 0x80000000, sysc_work_done + 0x80000000
 cleanup_table_io_return:
         .long   io_return + 0x80000000, io_leave + 0x80000000
 cleanup_table_io_leave:
         .long   io_leave + 0x80000000, io_done + 0x80000000
 cleanup_table_io_work_loop:
-        .long   io_work_loop + 0x80000000, io_mcck_pending + 0x80000000
+        .long   io_work_loop + 0x80000000, io_work_done + 0x80000000
 
 cleanup_critical:
         clc     4(4,%r12),BASED(cleanup_table_system_call)
@@ -930,8 +970,6 @@ cleanup_system_call:
 cleanup_vtime:
         clc     __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+12)
         bhe     BASED(cleanup_stime)
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        bz      BASED(cleanup_novtime)
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 cleanup_stime:
         clc     __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+16)
@@ -939,7 +977,6 @@ cleanup_stime:
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 cleanup_update:
         mvc     __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-cleanup_novtime:
 #endif
         mvc     __LC_RETURN_PSW+4(4),BASED(cleanup_table_system_call+4)
         la      %r12,__LC_RETURN_PSW
@@ -978,10 +1015,10 @@ cleanup_sysc_leave:
 2:      la      %r12,__LC_RETURN_PSW
         br      %r14
 cleanup_sysc_leave_insn:
+        .long   sysc_done - 4 + 0x80000000
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        .long   sysc_leave + 14 + 0x80000000
+        .long   sysc_done - 8 + 0x80000000
 #endif
-        .long   sysc_leave + 10 + 0x80000000
 
 cleanup_io_return:
         mvc     __LC_RETURN_PSW(4),0(%r12)
@@ -1008,10 +1045,10 @@ cleanup_io_leave:
 2:      la      %r12,__LC_RETURN_PSW
         br      %r14
 cleanup_io_leave_insn:
+        .long   io_done - 4 + 0x80000000
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        .long   io_leave + 18 + 0x80000000
+        .long   io_done - 8 + 0x80000000
 #endif
-        .long   io_leave + 14 + 0x80000000
 
 /*
  * Integer constants
@@ -1019,7 +1056,6 @@ cleanup_io_leave_insn:
                 .align  4
 .Lc_spsize:     .long   SP_SIZE
 .Lc_overhead:   .long   STACK_FRAME_OVERHEAD
-.Lc_pactive:    .long   PREEMPT_ACTIVE
 .Lnr_syscalls:  .long   NR_syscalls
 .L0x018:        .short  0x018
 .L0x020:        .short  0x020
@@ -1043,6 +1079,8 @@ cleanup_io_leave_insn:
 .Lexecve_tail:  .long   execve_tail
 .Ljump_table:   .long   pgm_check_table
 .Lschedule:     .long   schedule
+.Lpreempt_schedule_irq:
+                .long   preempt_schedule_irq
 .Ltrace:        .long   syscall_trace
 .Lschedtail:    .long   schedule_tail
 .Lsysc_table:   .long   sys_call_table
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 05e26d1fdf..a3e47b893f 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -67,12 +67,28 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NEED_RESCHED | \
          brasl  %r14,trace_hardirqs_off
         .endm
 
-        .macro  LOCKDEP_SYS_EXIT
-         brasl  %r14,lockdep_sys_exit
+        .macro TRACE_IRQS_CHECK
+        tm      SP_PSW(%r15),0x03       # irqs enabled?
+        jz      0f
+        brasl   %r14,trace_hardirqs_on
+        j       1f
+0:      brasl   %r14,trace_hardirqs_off
+1:
         .endm
 #else
 #define TRACE_IRQS_ON
 #define TRACE_IRQS_OFF
+#define TRACE_IRQS_CHECK
+#endif
+
+#ifdef CONFIG_LOCKDEP
+        .macro  LOCKDEP_SYS_EXIT
+        tm      SP_PSW+1(%r15),0x01     # returning to user ?
+        jz      0f
+        brasl   %r14,lockdep_sys_exit
+0:
+        .endm
+#else
 #define LOCKDEP_SYS_EXIT
 #endif
 
@@ -222,8 +238,6 @@ sysc_saveall:
         llgh    %r7,__LC_SVC_INT_CODE   # get svc number from lowcore
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 sysc_vtime:
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        jz      sysc_do_svc
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 sysc_stime:
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
@@ -257,19 +271,34 @@ sysc_noemu:
 
 sysc_return:
         tm      SP_PSW+1(%r15),0x01     # returning to user ?
-        jno     sysc_leave
+        jno     sysc_restore
         tm      __TI_flags+7(%r9),_TIF_WORK_SVC
         jnz     sysc_work       # there is work to do (signals etc.)
+sysc_restore:
+#ifdef CONFIG_TRACE_IRQFLAGS
+        larl    %r1,sysc_restore_trace_psw
+        lpswe   0(%r1)
+sysc_restore_trace:
+        TRACE_IRQS_CHECK
         LOCKDEP_SYS_EXIT
+#endif
 sysc_leave:
         RESTORE_ALL __LC_RETURN_PSW,1
+sysc_done:
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+        .align  8
+        .globl sysc_restore_trace_psw
+sysc_restore_trace_psw:
+        .quad   0, sysc_restore_trace
+#endif
 
 #
 # recheck if there is more work to do
 #
 sysc_work_loop:
         tm      __TI_flags+7(%r9),_TIF_WORK_SVC
-        jz      sysc_leave        # there is no work to do
+        jz      sysc_restore      # there is no work to do
 #
 # One of the work bits is on. Find out which one.
 #
@@ -284,8 +313,8 @@ sysc_work:
         jo      sysc_restart
         tm      __TI_flags+7(%r9),_TIF_SINGLE_STEP
         jo      sysc_singlestep
-        LOCKDEP_SYS_EXIT
-        j       sysc_leave
+        j       sysc_restore
+sysc_work_done:
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
@@ -445,6 +474,7 @@ pgm_check_handler:
 pgm_no_vtime:
 #endif
         lg      %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+        TRACE_IRQS_OFF
         lgf     %r3,__LC_PGM_ILC        # load program interruption code
         lghi    %r8,0x7f
         ngr     %r8,%r3
@@ -484,6 +514,7 @@ pgm_per_std:
 pgm_no_vtime2:
 #endif
         lg      %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
+        TRACE_IRQS_OFF
         lg      %r1,__TI_task(%r9)
         tm      SP_PSW+1(%r15),0x01     # kernel per event ?
         jz      kernel_per
@@ -504,12 +535,9 @@ pgm_svcper:
         SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
         CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        jz      pgm_no_vtime3
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
         mvc     __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-pgm_no_vtime3:
 #endif
         llgh    %r7,__LC_SVC_INT_CODE   # get svc number from lowcore
         lg      %r9,__LC_THREAD_INFO    # load pointer to thread_info struct
@@ -529,7 +557,7 @@ kernel_per:
         lhi     %r0,__LC_PGM_OLD_PSW
         sth     %r0,SP_TRAP(%r15)       # set trap indication to pgm check
         la      %r2,SP_PTREGS(%r15)     # address of register-save area
-        larl    %r14,sysc_leave         # load adr. of system ret, no work
+        larl    %r14,sysc_restore       # load adr. of system ret, no work
         jg      do_single_step          # branch to do_single_step
 
 /*
@@ -554,26 +582,38 @@ io_no_vtime:
         TRACE_IRQS_OFF
         la      %r2,SP_PTREGS(%r15)     # address of register-save area
         brasl   %r14,do_IRQ             # call standard irq handler
-        TRACE_IRQS_ON
-
 io_return:
         tm      SP_PSW+1(%r15),0x01     # returning to user ?
 #ifdef CONFIG_PREEMPT
         jno     io_preempt              # no -> check for preemptive scheduling
 #else
-        jno     io_leave                # no-> skip resched & signal
+        jno     io_restore              # no-> skip resched & signal
 #endif
         tm      __TI_flags+7(%r9),_TIF_WORK_INT
         jnz     io_work                 # there is work to do (signals etc.)
+io_restore:
+#ifdef CONFIG_TRACE_IRQFLAGS
+        larl    %r1,io_restore_trace_psw
+        lpswe   0(%r1)
+io_restore_trace:
+        TRACE_IRQS_CHECK
         LOCKDEP_SYS_EXIT
+#endif
 io_leave:
         RESTORE_ALL __LC_RETURN_PSW,0
 io_done:
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+        .align  8
+        .globl io_restore_trace_psw
+io_restore_trace_psw:
+        .quad   0, io_restore_trace
+#endif
+
 #ifdef CONFIG_PREEMPT
 io_preempt:
         icm     %r0,15,__TI_precount(%r9)
-        jnz     io_leave
+        jnz     io_restore
         # switch to kernel stack
         lg      %r1,SP_R15(%r15)
         aghi    %r1,-SP_SIZE
@@ -582,14 +622,9 @@ io_preempt:
         lgr     %r15,%r1
 io_resume_loop:
         tm      __TI_flags+7(%r9),_TIF_NEED_RESCHED
-        jno     io_leave
-        larl    %r1,.Lc_pactive
-        mvc     __TI_precount(4,%r9),0(%r1)
-        stosm   __SF_EMPTY(%r15),0x03   # reenable interrupts
-        brasl   %r14,schedule           # call schedule
-        stnsm   __SF_EMPTY(%r15),0xfc   # disable I/O and ext. interrupts
-        xc      __TI_precount(4,%r9),__TI_precount(%r9)
-        j       io_resume_loop
+        jno     io_restore
+        larl    %r14,io_resume_loop
+        jg      preempt_schedule_irq
 #endif
 
 #
@@ -613,37 +648,39 @@ io_work_loop:
         jo      io_reschedule
         tm      __TI_flags+7(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)
         jnz     io_sigpending
-        LOCKDEP_SYS_EXIT
-        j       io_leave
+        j       io_restore
+io_work_done:
 
 #
 # _TIF_MCCK_PENDING is set, call handler
 #
 io_mcck_pending:
-        TRACE_IRQS_OFF
         brasl   %r14,s390_handle_mcck   # TIF bit will be cleared by handler
-        TRACE_IRQS_ON
         j       io_work_loop
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
 #
 io_reschedule:
+        TRACE_IRQS_ON
         stosm   __SF_EMPTY(%r15),0x03   # reenable interrupts
         brasl   %r14,schedule           # call scheduler
         stnsm   __SF_EMPTY(%r15),0xfc   # disable I/O and ext. interrupts
+        TRACE_IRQS_OFF
         tm      __TI_flags+7(%r9),_TIF_WORK_INT
-        jz      io_leave                # there is no work to do
+        jz      io_restore              # there is no work to do
         j       io_work_loop
 
 #
 # _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
 #
 io_sigpending:
+        TRACE_IRQS_ON
         stosm   __SF_EMPTY(%r15),0x03   # reenable interrupts
         la      %r2,SP_PTREGS(%r15)     # load pt_regs
         brasl   %r14,do_signal          # call do_signal
         stnsm   __SF_EMPTY(%r15),0xfc   # disable I/O and ext. interrupts
+        TRACE_IRQS_OFF
         j       io_work_loop
 
 /*
@@ -669,7 +706,6 @@ ext_no_vtime:
         la      %r2,SP_PTREGS(%r15)     # address of register-save area
         llgh    %r3,__LC_EXT_INT_CODE   # get interruption code
         brasl   %r14,do_extint
-        TRACE_IRQS_ON
         j       io_return
 
 __critical_end:
@@ -824,15 +860,15 @@ cleanup_table_system_call:
 cleanup_table_sysc_return:
         .quad   sysc_return, sysc_leave
 cleanup_table_sysc_leave:
-        .quad   sysc_leave, sysc_work_loop
+        .quad   sysc_leave, sysc_done
 cleanup_table_sysc_work_loop:
-        .quad   sysc_work_loop, sysc_reschedule
+        .quad   sysc_work_loop, sysc_work_done
 cleanup_table_io_return:
         .quad   io_return, io_leave
 cleanup_table_io_leave:
         .quad   io_leave, io_done
 cleanup_table_io_work_loop:
-        .quad   io_work_loop, io_mcck_pending
+        .quad   io_work_loop, io_work_done
 
 cleanup_critical:
         clc     8(8,%r12),BASED(cleanup_table_system_call)
@@ -901,8 +937,6 @@ cleanup_system_call:
 cleanup_vtime:
         clc     __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)
         jhe     cleanup_stime
-        tm      SP_PSW+1(%r15),0x01     # interrupting from user ?
-        jz      cleanup_novtime
         UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
 cleanup_stime:
         clc     __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+32)
@@ -910,7 +944,6 @@ cleanup_stime:
         UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
 cleanup_update:
         mvc     __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-cleanup_novtime:
 #endif
         mvc     __LC_RETURN_PSW+8(8),BASED(cleanup_table_system_call+8)
         la      %r12,__LC_RETURN_PSW
@@ -949,10 +982,10 @@ cleanup_sysc_leave:
 2:      la      %r12,__LC_RETURN_PSW
         br      %r14
 cleanup_sysc_leave_insn:
+        .quad   sysc_done - 4
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        .quad   sysc_leave + 16
+        .quad   sysc_done - 8
 #endif
-        .quad   sysc_leave + 12
 
 cleanup_io_return:
         mvc     __LC_RETURN_PSW(8),0(%r12)
@@ -979,17 +1012,16 @@ cleanup_io_leave:
 2:      la      %r12,__LC_RETURN_PSW
         br      %r14
 cleanup_io_leave_insn:
+        .quad   io_done - 4
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-        .quad   io_leave + 20
+        .quad   io_done - 8
 #endif
-        .quad   io_leave + 16
 
 /*
  * Integer constants
  */
                 .align  4
 .Lconst:
-.Lc_pactive:    .long   PREEMPT_ACTIVE
 .Lnr_syscalls:  .long   NR_syscalls
 .L0x0130:       .short  0x130
 .L0x0140:       .short  0x140
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 7e1bfb9840..50f8f1e376 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -347,7 +347,7 @@ void (*_machine_power_off)(void) = do_machine_power_off_nonsmp;
 
 void machine_restart(char *command)
 {
-        if (!in_interrupt() || oops_in_progress)
+        if ((!in_interrupt() && !in_atomic()) || oops_in_progress)
                 /*
                  * Only unblank the console if we are called in enabled
                  * context or a bust_spinlocks cleared the way for us.
@@ -492,6 +492,10 @@ static void setup_addressing_mode(void)
                 printk("S390 address spaces switched, ");
                 set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY);
         }
+#ifdef CONFIG_TRACE_IRQFLAGS
+        sysc_restore_trace_psw.mask = psw_kernel_bits & ~PSW_MASK_MCHECK;
+        io_restore_trace_psw.mask = psw_kernel_bits & ~PSW_MASK_MCHECK;
+#endif
 }
 
 static void __init
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b05ae85842..264ea906db 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -193,72 +193,30 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 }
 EXPORT_SYMBOL(smp_call_function_single);
 
-static void do_send_stop(void)
+void smp_send_stop(void)
 {
         int cpu, rc;
 
-        /* stop all processors */
-        for_each_online_cpu(cpu) {
-                if (cpu == smp_processor_id())
-                        continue;
-                do {
-                        rc = signal_processor(cpu, sigp_stop);
-                } while (rc == sigp_busy);
-        }
-}
+        /* Disable all interrupts/machine checks */
+        __load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
 
-static void do_store_status(void)
-{
-        int cpu, rc;
+        /* write magic number to zero page (absolute 0) */
+        lowcore_ptr[smp_processor_id()]->panic_magic = __PANIC_MAGIC;
 
-        /* store status of all processors in their lowcores (real 0) */
+        /* stop all processors */
         for_each_online_cpu(cpu) {
                 if (cpu == smp_processor_id())
                         continue;
                 do {
-                        rc = signal_processor_p(
-                                (__u32)(unsigned long) lowcore_ptr[cpu], cpu,
-                                sigp_store_status_at_address);
+                        rc = signal_processor(cpu, sigp_stop);
                 } while (rc == sigp_busy);
-        }
-}
 
-static void do_wait_for_stop(void)
-{
-        int cpu;
-
-        /* Wait for all other cpus to enter stopped state */
-        for_each_online_cpu(cpu) {
-                if (cpu == smp_processor_id())
-                        continue;
                 while (!smp_cpu_not_running(cpu))
                         cpu_relax();
         }
 }
 
 /*
- * this function sends a 'stop' sigp to all other CPUs in the system.
- * it goes straight through.
- */
-void smp_send_stop(void)
-{
-        /* Disable all interrupts/machine checks */
-        __load_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK);
-
-        /* write magic number to zero page (absolute 0) */
-        lowcore_ptr[smp_processor_id()]->panic_magic = __PANIC_MAGIC;
-
-        /* stop other processors. */
-        do_send_stop();
-
-        /* wait until other processors are stopped */
-        do_wait_for_stop();
-
-        /* store status of other processors. */
-        do_store_status();
-}
-
-/*
  * Reboot, halt and power_off routines for SMP.
  */
 void machine_restart_smp(char *__unused)
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 8ec9def83c..8ed16a83fb 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -260,6 +260,7 @@ void die(const char * str, struct pt_regs * regs, long err)
         bust_spinlocks(1);
         printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
         print_modules();
+        notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
         show_regs(regs);
         bust_spinlocks(0);
         add_taint(TAINT_DIE);
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index d4ed93dfb9..413c240cbc 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -341,19 +341,16 @@ cmm_timeout_handler(ctl_table *ctl, int write, struct file *filp,
 
 static struct ctl_table cmm_table[] = {
         {
-                .ctl_name       = VM_CMM_PAGES,
                 .procname       = "cmm_pages",
                 .mode           = 0644,
                 .proc_handler   = &cmm_pages_handler,
         },
         {
-                .ctl_name       = VM_CMM_TIMED_PAGES,
                 .procname       = "cmm_timed_pages",
                 .mode           = 0644,
                 .proc_handler   = &cmm_pages_handler,
         },
         {
-                .ctl_name       = VM_CMM_TIMEOUT,
                 .procname       = "cmm_timeout",
                 .mode           = 0644,
                 .proc_handler   = &cmm_timeout_handler,
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 116b03a456..7aa1dc6d67 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -11,10 +11,9 @@ endif
 $(srctree)/arch/x86/Makefile%: ;
 
 ifeq ($(CONFIG_X86_32),y)
+        UTS_MACHINE := i386
         include $(srctree)/arch/x86/Makefile_32
 else
+        UTS_MACHINE := x86_64
         include $(srctree)/arch/x86/Makefile_64
 endif
-
-
-
diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index f63e5ff0ac..a25db514c7 100644
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -49,6 +49,9 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
         if (cpu_has(c, X86_FEATURE_EST))
                 buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
 
+        if (cpu_has(c, X86_FEATURE_ACPI))
+                buf[2] |= ACPI_PDC_T_FFH;
+
         obj->type = ACPI_TYPE_BUFFER;
         obj->buffer.length = 12;
         obj->buffer.pointer = (u8 *) buf;
diff --git a/arch/x86/kernel/acpi/sleep_64.c b/arch/x86/kernel/acpi/sleep_64.c
index 79475d2370..da42de261b 100644
--- a/arch/x86/kernel/acpi/sleep_64.c
+++ b/arch/x86/kernel/acpi/sleep_64.c
@@ -115,6 +115,3 @@ static int __init acpi_sleep_setup(char *str)
 
 __setup("acpi_sleep=", acpi_sleep_setup);
 
-void acpi_pci_link_exit(void)
-{
-}
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index f35c6eb33d..6bb80ea5f4 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -962,7 +962,7 @@ static int EISA_ELCR(unsigned int irq)
 #define default_MCA_trigger(idx)        (1)
 #define default_MCA_polarity(idx)       (0)
 
-static int __init MPBIOS_polarity(int idx)
+static int MPBIOS_polarity(int idx)
 {
         int bus = mp_irqs[idx].mpc_srcbus;
         int polarity;
@@ -2830,6 +2830,25 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
         return 0;
 }
 
+int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
+{
+        int i;
+
+        if (skip_ioapic_setup)
+                return -1;
+
+        for (i = 0; i < mp_irq_entries; i++)
+                if (mp_irqs[i].mpc_irqtype == mp_INT &&
+                    mp_irqs[i].mpc_srcbusirq == bus_irq)
+                        break;
+        if (i >= mp_irq_entries)
+                return -1;
+
+        *trigger = irq_trigger(i);
+        *polarity = irq_polarity(i);
+        return 0;
+}
+
 #endif /* CONFIG_ACPI */
 
 static int __init parse_disable_timer_pin_1(char *arg)
diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index 953328b55a..435a8c9b55 100644
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -546,7 +546,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
 #define default_PCI_trigger(idx)        (1)
 #define default_PCI_polarity(idx)       (1)
 
-static int __init MPBIOS_polarity(int idx)
+static int MPBIOS_polarity(int idx)
 {
         int bus = mp_irqs[idx].mpc_srcbus;
         int polarity;
@@ -2222,8 +2222,27 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
         return 0;
 }
 
-#endif /* CONFIG_ACPI */
 
+int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
+{
+        int i;
+
+        if (skip_ioapic_setup)
+                return -1;
+
+        for (i = 0; i < mp_irq_entries; i++)
+                if (mp_irqs[i].mpc_irqtype == mp_INT &&
+                    mp_irqs[i].mpc_srcbusirq == bus_irq)
+                        break;
+        if (i >= mp_irq_entries)
+                return -1;
+
+        *trigger = irq_trigger(i);
+        *polarity = irq_polarity(i);
+        return 0;
+}
+
+#endif /* CONFIG_ACPI */
 
 /*
  * This function currently is only a helper for the i386 smp boot process where
@@ -2260,3 +2279,4 @@ void __init setup_ioapic_dest(void)
         }
 }
 #endif
+
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 7e35078673..0234f2831b 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -13,7 +13,7 @@ static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d)
         return 0;
 }
 
-static struct dmi_system_id acpi_pciprobe_dmi_table[] = {
+static struct dmi_system_id acpi_pciprobe_dmi_table[] __devinitdata = {
 /*
  * Systems where PCI IO resource ISA alignment can be skipped
  * when the ISA enable bit in the bridge control is not set
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 087a7028ae..b9f923ef17 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -50,7 +50,6 @@ config ACPI_SLEEP
 config ACPI_PROCFS
         bool "Deprecated /proc/acpi files"
         depends on PROC_FS
-        default y
         ---help---
           For backwards compatibility, this option allows
           deprecated /proc/acpi/ files to exist, even when
@@ -61,7 +60,6 @@ config ACPI_PROCFS
           /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
           /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
           /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
-          /proc/acpi/battery (/sys/class/power_supply)
           /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
           /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
 
@@ -69,7 +67,21 @@ config ACPI_PROCFS
           and functions which do not yet exist in /sys.
 
           Say N to delete /proc/acpi/ files that have moved to /sys/
-
+config ACPI_PROCFS_POWER
+        bool "Deprecated power /proc/acpi folders"
+        depends on PROC_FS
+        default y
+        ---help---
+          For backwards compatibility, this option allows
+          deprecated power /proc/acpi/ folders to exist, even when
+          they have been replaced by functions in /sys.
+          The deprecated folders (and their replacements) include:
+          /proc/acpi/battery/* (/sys/class/power_supply/*)
+          /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
+          This option has no effect on /proc/acpi/ folders
+          and functions, which do not yet exist in /sys
+
+          Say N to delete power /proc/acpi/ folders that have moved to /sys/
 config ACPI_PROC_EVENT
         bool "Deprecated /proc/acpi/event support"
         depends on PROC_FS
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 54e3ab0e5f..456446f900 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -58,6 +58,6 @@ obj-$(CONFIG_ACPI_NUMA)		+= numa.o
 obj-$(CONFIG_ACPI_ASUS)         += asus_acpi.o
 obj-$(CONFIG_ACPI_TOSHIBA)      += toshiba_acpi.o
 obj-$(CONFIG_ACPI_HOTPLUG_MEMORY)       += acpi_memhotplug.o
-obj-y                           += cm_sbs.o
+obj-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
 obj-$(CONFIG_ACPI_SBS)          += sbs.o
 obj-$(CONFIG_ACPI_SBS)          += sbshc.o
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 30238f6ff2..76ed4f52be 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -27,7 +27,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #endif
@@ -51,7 +51,7 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI AC Adapter Driver");
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 extern struct proc_dir_entry *acpi_lock_ac_dir(void);
 extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
 static int acpi_ac_open_fs(struct inode *inode, struct file *file);
@@ -86,7 +86,7 @@ struct acpi_ac {
 
 #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 static const struct file_operations acpi_ac_fops = {
         .open = acpi_ac_open_fs,
         .read = seq_read,
@@ -136,7 +136,7 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
         return 0;
 }
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
@@ -275,7 +275,7 @@ static int acpi_ac_add(struct acpi_device *device)
         if (result)
                 goto end;
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         result = acpi_ac_add_fs(device);
 #endif
         if (result)
@@ -300,7 +300,7 @@ static int acpi_ac_add(struct acpi_device *device)
 
       end:
         if (result) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
                 acpi_ac_remove_fs(device);
 #endif
                 kfree(ac);
@@ -339,7 +339,7 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
                                             ACPI_ALL_NOTIFY, acpi_ac_notify);
         if (ac->charger.dev)
                 power_supply_unregister(&ac->charger);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_ac_remove_fs(device);
 #endif
 
@@ -355,7 +355,7 @@ static int __init acpi_ac_init(void)
         if (acpi_disabled)
                 return -ENODEV;
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_ac_dir = acpi_lock_ac_dir();
         if (!acpi_ac_dir)
                 return -ENODEV;
@@ -363,7 +363,7 @@ static int __init acpi_ac_init(void)
 
         result = acpi_bus_register_driver(&acpi_ac_driver);
         if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
                 acpi_unlock_ac_dir(acpi_ac_dir);
 #endif
                 return -ENODEV;
@@ -377,7 +377,7 @@ static void __exit acpi_ac_exit(void)
 
         acpi_bus_unregister_driver(&acpi_ac_driver);
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_unlock_ac_dir(acpi_ac_dir);
 #endif
 
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 192c244f61..7d6be23eff 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -31,7 +31,7 @@
 #include <linux/types.h>
 #include <linux/jiffies.h>
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <asm/uaccess.h>
@@ -63,7 +63,7 @@ static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 extern struct proc_dir_entry *acpi_lock_battery_dir(void);
 extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
 
@@ -153,6 +153,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
                         val->intval = POWER_SUPPLY_STATUS_CHARGING;
                 else if (battery->state == 0)
                         val->intval = POWER_SUPPLY_STATUS_FULL;
+                else
+                        val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
                 break;
         case POWER_SUPPLY_PROP_PRESENT:
                 val->intval = acpi_battery_present(battery);
@@ -221,7 +223,7 @@ static enum power_supply_property energy_battery_props[] = {
         POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 inline char *acpi_battery_units(struct acpi_battery *battery)
 {
         return (battery->power_unit)?"mA":"mW";
@@ -479,7 +481,7 @@ static int acpi_battery_update(struct acpi_battery *battery)
                               FS Interface (/proc)
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 static struct proc_dir_entry *acpi_battery_dir;
 
 static int acpi_battery_print_info(struct seq_file *seq, int result)
@@ -786,7 +788,7 @@ static int acpi_battery_add(struct acpi_device *device)
         acpi_driver_data(device) = battery;
         mutex_init(&battery->lock);
         acpi_battery_update(battery);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         result = acpi_battery_add_fs(device);
         if (result)
                 goto end;
@@ -804,7 +806,7 @@ static int acpi_battery_add(struct acpi_device *device)
                device->status.battery_present ? "present" : "absent");
       end:
         if (result) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
                 acpi_battery_remove_fs(device);
 #endif
                 kfree(battery);
@@ -823,7 +825,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
         status = acpi_remove_notify_handler(device->handle,
                                             ACPI_ALL_NOTIFY,
                                             acpi_battery_notify);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_battery_remove_fs(device);
 #endif
         sysfs_remove_battery(battery);
@@ -859,13 +861,13 @@ static int __init acpi_battery_init(void)
 {
         if (acpi_disabled)
                 return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_battery_dir = acpi_lock_battery_dir();
         if (!acpi_battery_dir)
                 return -ENODEV;
 #endif
         if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
                 acpi_unlock_battery_dir(acpi_battery_dir);
 #endif
                 return -ENODEV;
@@ -876,7 +878,7 @@ static int __init acpi_battery_init(void)
 static void __exit acpi_battery_exit(void)
 {
         acpi_bus_unregister_driver(&acpi_battery_driver);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_unlock_battery_dir(acpi_battery_dir);
 #endif
 }
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 06b78e5e33..d411017f8c 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -47,6 +47,9 @@
 #undef PREFIX
 #define PREFIX                          "ACPI: EC: "
 
+/* Uncomment next line to get verbose print outs*/
+/* #define DEBUG */
+
 /* EC status register */
 #define ACPI_EC_FLAG_OBF        0x01    /* Output buffer full */
 #define ACPI_EC_FLAG_IBF        0x02    /* Input buffer full */
@@ -75,7 +78,10 @@ enum {
         EC_FLAGS_WAIT_GPE = 0,          /* Don't check status until GPE arrives */
         EC_FLAGS_QUERY_PENDING,         /* Query is pending */
         EC_FLAGS_GPE_MODE,              /* Expect GPE to be sent for status change */
-        EC_FLAGS_ONLY_IBF_GPE,          /* Expect GPE only for IBF = 0 event */
+        EC_FLAGS_NO_ADDRESS_GPE,        /* Expect GPE only for non-address event */
+        EC_FLAGS_ADDRESS,               /* Address is being written */
+        EC_FLAGS_NO_WDATA_GPE,          /* Don't expect WDATA GPE event */
+        EC_FLAGS_WDATA,                 /* Data is being written */
 };
 
 static int acpi_ec_remove(struct acpi_device *device, int type);
@@ -131,21 +137,27 @@ static struct acpi_ec {
 
 static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
 {
-        return inb(ec->command_addr);
+        u8 x = inb(ec->command_addr);
+        pr_debug(PREFIX "---> status = 0x%2x\n", x);
+        return x;
 }
 
 static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
 {
+        u8 x = inb(ec->data_addr);
+        pr_debug(PREFIX "---> data = 0x%2x\n", x);
         return inb(ec->data_addr);
 }
 
 static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command)
 {
+        pr_debug(PREFIX "<--- command = 0x%2x\n", command);
         outb(command, ec->command_addr);
 }
 
 static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
 {
+        pr_debug(PREFIX "<--- data = 0x%2x\n", data);
         outb(data, ec->data_addr);
 }
 
@@ -166,38 +178,54 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event)
 
 static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 {
+        int ret = 0;
+        if (unlikely(test_bit(EC_FLAGS_ADDRESS, &ec->flags) &&
+                     test_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags)))
+                force_poll = 1;
+        if (unlikely(test_bit(EC_FLAGS_WDATA, &ec->flags) &&
+                     test_bit(EC_FLAGS_NO_WDATA_GPE, &ec->flags)))
+                force_poll = 1;
         if (likely(test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) &&
             likely(!force_poll)) {
                 if (wait_event_timeout(ec->wait, acpi_ec_check_status(ec, event),
                                        msecs_to_jiffies(ACPI_EC_DELAY)))
-                        return 0;
+                        goto end;
                 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
                 if (acpi_ec_check_status(ec, event)) {
-                        if (event == ACPI_EC_EVENT_OBF_1) {
-                                /* miss OBF = 1 GPE, don't expect it anymore */
-                                printk(KERN_INFO PREFIX "missing OBF_1 confirmation,"
-                                        "switching to degraded mode.\n");
-                                set_bit(EC_FLAGS_ONLY_IBF_GPE, &ec->flags);
+                        if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) {
+                                /* miss address GPE, don't expect it anymore */
+                                pr_info(PREFIX "missing address confirmation, "
+                                        "don't expect it any longer.\n");
+                                set_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags);
+                        } else if (test_bit(EC_FLAGS_WDATA, &ec->flags)) {
+                                /* miss write data GPE, don't expect it */
+                                pr_info(PREFIX "missing write data confirmation, "
+                                        "don't expect it any longer.\n");
+                                set_bit(EC_FLAGS_NO_WDATA_GPE, &ec->flags);
                         } else {
                                 /* missing GPEs, switch back to poll mode */
-                                printk(KERN_INFO PREFIX "missing IBF_1 confirmations,"
-                                        "switch off interrupt mode.\n");
+                                if (printk_ratelimit())
+                                        pr_info(PREFIX "missing confirmations, "
+                                                "switch off interrupt mode.\n");
                                 clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
                         }
-                        return 0;
+                        goto end;
                 }
         } else {
                 unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
                 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
                 while (time_before(jiffies, delay)) {
                         if (acpi_ec_check_status(ec, event))
-                                return 0;
+                                goto end;
                 }
         }
-        printk(KERN_ERR PREFIX "acpi_ec_wait timeout,"
+        pr_err(PREFIX "acpi_ec_wait timeout,"
                                " status = %d, expect_event = %d\n",
                                acpi_ec_read_status(ec), event);
-        return -ETIME;
+        ret = -ETIME;
+      end:
+        clear_bit(EC_FLAGS_ADDRESS, &ec->flags);
+        return ret;
 }
 
 static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
@@ -208,22 +236,26 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
         int result = 0;
         set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
         acpi_ec_write_cmd(ec, command);
-
+        pr_debug(PREFIX "transaction start\n");
         for (; wdata_len > 0; --wdata_len) {
                 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll);
                 if (result) {
-                        printk(KERN_ERR PREFIX
+                        pr_err(PREFIX
                                "write_cmd timeout, command = %d\n", command);
                         goto end;
                 }
+                /* mark the address byte written to EC */
+                if (rdata_len + wdata_len > 1)
+                        set_bit(EC_FLAGS_ADDRESS, &ec->flags);
                 set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
                 acpi_ec_write_data(ec, *(wdata++));
         }
 
         if (!rdata_len) {
+                set_bit(EC_FLAGS_WDATA, &ec->flags);
                 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll);
                 if (result) {
-                        printk(KERN_ERR PREFIX
+                        pr_err(PREFIX
                                "finish-write timeout, command = %d\n", command);
                         goto end;
                 }
@@ -231,12 +263,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
                 clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
 
         for (; rdata_len > 0; --rdata_len) {
-                if (test_bit(EC_FLAGS_ONLY_IBF_GPE, &ec->flags))
-                        force_poll = 1;
                 result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, force_poll);
                 if (result) {
-                        printk(KERN_ERR PREFIX "read timeout, command = %d\n",
-                               command);
+                        pr_err(PREFIX "read timeout, command = %d\n", command);
                         goto end;
                 }
                 /* Don't expect GPE after last read */
@@ -245,6 +274,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
                 *(rdata++) = acpi_ec_read_data(ec);
         }
       end:
+        pr_debug(PREFIX "transaction end\n");
         return result;
 }
 
@@ -273,8 +303,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 
         status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0);
         if (status) {
-                printk(KERN_ERR PREFIX
-                       "input buffer is not empty, aborting transaction\n");
+                pr_err(PREFIX "input buffer is not empty, "
+                                "aborting transaction\n");
                 goto end;
         }
 
@@ -488,6 +518,7 @@ static u32 acpi_ec_gpe_handler(void *data)
         acpi_status status = AE_OK;
         struct acpi_ec *ec = data;
 
+        pr_debug(PREFIX "~~~> interrupt\n");
         clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
         if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
                 wake_up(&ec->wait);
@@ -498,8 +529,9 @@ static u32 acpi_ec_gpe_handler(void *data)
                                 acpi_ec_gpe_query, ec);
         } else if (unlikely(!test_bit(EC_FLAGS_GPE_MODE, &ec->flags))) {
                 /* this is non-query, must be confirmation */
-                printk(KERN_INFO PREFIX "non-query interrupt received,"
-                        " switching to interrupt mode\n");
+                if (printk_ratelimit())
+                        pr_info(PREFIX "non-query interrupt received,"
+                                " switching to interrupt mode\n");
                 set_bit(EC_FLAGS_GPE_MODE, &ec->flags);
         }
 
@@ -701,10 +733,10 @@ static void ec_remove_handlers(struct acpi_ec *ec)
 {
         if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
                                 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
-                printk(KERN_ERR PREFIX "failed to remove space handler\n");
+                pr_err(PREFIX "failed to remove space handler\n");
         if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
                                 &acpi_ec_gpe_handler)))
-                printk(KERN_ERR PREFIX "failed to remove gpe handler\n");
+                pr_err(PREFIX "failed to remove gpe handler\n");
         ec->handlers_installed = 0;
 }
 
@@ -747,9 +779,9 @@ static int acpi_ec_add(struct acpi_device *device)
                 first_ec = ec;
         acpi_driver_data(device) = ec;
         acpi_ec_add_fs(device);
-        printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
+        pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
                           ec->gpe, ec->command_addr, ec->data_addr);
-        printk(KERN_INFO PREFIX "driver started in %s mode\n",
+        pr_info(PREFIX "driver started in %s mode\n",
                 (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll");
         return 0;
 }
@@ -875,18 +907,26 @@ int __init acpi_ec_ecdt_probe(void)
         status = acpi_get_table(ACPI_SIG_ECDT, 1,
                                 (struct acpi_table_header **)&ecdt_ptr);
         if (ACPI_SUCCESS(status)) {
-                printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n");
+                pr_info(PREFIX "EC description table is found, configuring boot EC\n");
                 boot_ec->command_addr = ecdt_ptr->control.address;
                 boot_ec->data_addr = ecdt_ptr->data.address;
                 boot_ec->gpe = ecdt_ptr->gpe;
                 boot_ec->handle = ACPI_ROOT_OBJECT;
         } else {
+                /* This workaround is needed only on some broken machines,
+                 * which require early EC, but fail to provide ECDT */
+                acpi_handle x;
                 printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
                 status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
                                                 boot_ec, NULL);
                 /* Check that acpi_get_devices actually find something */
                 if (ACPI_FAILURE(status) || !boot_ec->handle)
                         goto error;
+                /* We really need to limit this workaround, the only ASUS,
+                 * which needs it, has fake EC._INI method, so use it as flag.
+                 */
+                if (ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", &x)))
+                        goto error;
         }
 
         ret = ec_install_handlers(boot_ec);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index aabc6ca4a8..e3a673a008 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -387,17 +387,14 @@ acpi_status acpi_os_read_port(acpi_io_address port, u32 * value, u32 width)
         if (!value)
                 value = &dummy;
 
-        switch (width) {
-        case 8:
+        *value = 0;
+        if (width <= 8) {
                 *(u8 *) value = inb(port);
-                break;
-        case 16:
+        } else if (width <= 16) {
                 *(u16 *) value = inw(port);
-                break;
-        case 32:
+        } else if (width <= 32) {
                 *(u32 *) value = inl(port);
-                break;
-        default:
+        } else {
                 BUG();
         }
 
@@ -408,17 +405,13 @@ EXPORT_SYMBOL(acpi_os_read_port);
 
 acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width)
 {
-        switch (width) {
-        case 8:
+        if (width <= 8) {
                 outb(value, port);
-                break;
-        case 16:
+        } else if (width <= 16) {
                 outw(value, port);
-                break;
-        case 32:
+        } else if (width <= 32) {
                 outl(value, port);
-                break;
-        default:
+        } else {
                 BUG();
         }
 
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 235a51e328..015689d295 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -612,12 +612,6 @@ static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
                 request_region(pr->throttling.address, 6, "ACPI CPU throttle");
         }
 
-#ifdef CONFIG_CPU_FREQ
-        acpi_processor_ppc_has_changed(pr);
-#endif
-        acpi_processor_get_throttling_info(pr);
-        acpi_processor_get_limit_info(pr);
-
         return 0;
 }
 
@@ -647,7 +641,7 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
          */
         if (processor_device_array[pr->id] != NULL &&
             processor_device_array[pr->id] != device) {
-                printk(KERN_WARNING "BIOS reported wrong ACPI id"
+                printk(KERN_WARNING "BIOS reported wrong ACPI id "
                         "for the processor\n");
                 return -ENODEV;
         }
@@ -665,6 +659,12 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
         /* _PDC call should be done before doing anything else (if reqd.). */
         arch_acpi_processor_init_pdc(pr);
         acpi_processor_set_pdc(pr);
+#ifdef CONFIG_CPU_FREQ
+        acpi_processor_ppc_has_changed(pr);
+#endif
+        acpi_processor_get_throttling_info(pr);
+        acpi_processor_get_limit_info(pr);
+
 
         acpi_processor_power_init(pr, device);
 
@@ -684,7 +684,7 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
 {
         struct acpi_processor *pr = data;
         struct acpi_device *device = NULL;
-
+        int saved;
 
         if (!pr)
                 return;
@@ -694,7 +694,10 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
 
         switch (event) {
         case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
+                saved = pr->performance_platform_limit;
                 acpi_processor_ppc_has_changed(pr);
+                if (saved == pr->performance_platform_limit)
+                        break;
                 acpi_bus_generate_proc_event(device, event,
                                         pr->performance_platform_limit);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f996d0e376..7b6c20eeea 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -197,6 +197,19 @@ static inline u32 ticks_elapsed_in_us(u32 t1, u32 t2)
                 return PM_TIMER_TICKS_TO_US((0xFFFFFFFF - t1) + t2);
 }
 
+static void acpi_safe_halt(void)
+{
+        current_thread_info()->status &= ~TS_POLLING;
+        /*
+         * TS_POLLING-cleared state must be visible before we
+         * test NEED_RESCHED:
+         */
+        smp_mb();
+        if (!need_resched())
+                safe_halt();
+        current_thread_info()->status |= TS_POLLING;
+}
+
 #ifndef CONFIG_CPU_IDLE
 
 static void
@@ -239,19 +252,6 @@ acpi_processor_power_activate(struct acpi_processor *pr,
         return;
 }
 
-static void acpi_safe_halt(void)
-{
-        current_thread_info()->status &= ~TS_POLLING;
-        /*
-         * TS_POLLING-cleared state must be visible before we
-         * test NEED_RESCHED:
-         */
-        smp_mb();
-        if (!need_resched())
-                safe_halt();
-        current_thread_info()->status |= TS_POLLING;
-}
-
 static atomic_t c3_cpu_count;
 
 /* Common C-state entry for C2, C3, .. */
@@ -1373,15 +1373,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
         if (pr->flags.bm_check)
                 acpi_idle_update_bm_rld(pr, cx);
 
-        current_thread_info()->status &= ~TS_POLLING;
-        /*
-         * TS_POLLING-cleared state must be visible before we test
-         * NEED_RESCHED:
-         */
-        smp_mb();
-        if (!need_resched())
-                safe_halt();
-        current_thread_info()->status |= TS_POLLING;
+        acpi_safe_halt();
 
         cx->usage++;
 
@@ -1399,6 +1391,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
         struct acpi_processor *pr;
         struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
         u32 t1, t2;
+        int sleep_ticks = 0;
+
         pr = processors[smp_processor_id()];
 
         if (unlikely(!pr))
@@ -1428,6 +1422,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
                 ACPI_FLUSH_CPU_CACHE();
 
         t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
+        /* Tell the scheduler that we are going deep-idle: */
+        sched_clock_idle_sleep_event();
         acpi_state_timer_broadcast(pr, cx, 1);
         acpi_idle_do_entry(cx);
         t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
@@ -1436,6 +1432,10 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
         /* TSC could halt in idle, so notify users */
         mark_tsc_unstable("TSC halts in idle");;
 #endif
+        sleep_ticks = ticks_elapsed(t1, t2);
+
+        /* Tell the scheduler how much we idled: */
+        sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
 
         local_irq_enable();
         current_thread_info()->status |= TS_POLLING;
@@ -1443,7 +1443,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
         cx->usage++;
 
         acpi_state_timer_broadcast(pr, cx, 0);
-        cx->time += ticks_elapsed(t1, t2);
+        cx->time += sleep_ticks;
         return ticks_elapsed_in_us(t1, t2);
 }
 
@@ -1463,6 +1463,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
         struct acpi_processor *pr;
         struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
         u32 t1, t2;
+        int sleep_ticks = 0;
+
         pr = processors[smp_processor_id()];
 
         if (unlikely(!pr))
@@ -1471,6 +1473,15 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
         if (acpi_idle_suspend)
                 return(acpi_idle_enter_c1(dev, state));
 
+        if (acpi_idle_bm_check()) {
+                if (dev->safe_state) {
+                        return dev->safe_state->enter(dev, dev->safe_state);
+                } else {
+                        acpi_safe_halt();
+                        return 0;
+                }
+        }
+
         local_irq_disable();
         current_thread_info()->status &= ~TS_POLLING;
         /*
@@ -1485,38 +1496,45 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
                 return 0;
         }
 
+        /* Tell the scheduler that we are going deep-idle: */
+        sched_clock_idle_sleep_event();
         /*
          * Must be done before busmaster disable as we might need to
          * access HPET !
          */
         acpi_state_timer_broadcast(pr, cx, 1);
 
-        if (acpi_idle_bm_check()) {
-                cx = pr->power.bm_state;
-
-                acpi_idle_update_bm_rld(pr, cx);
-
-                t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
-                acpi_idle_do_entry(cx);
-                t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
-        } else {
-                acpi_idle_update_bm_rld(pr, cx);
+        acpi_idle_update_bm_rld(pr, cx);
 
+        /*
+         * disable bus master
+         * bm_check implies we need ARB_DIS
+         * !bm_check implies we need cache flush
+         * bm_control implies whether we can do ARB_DIS
+         *
+         * That leaves a case where bm_check is set and bm_control is
+         * not set. In that case we cannot do much, we enter C3
+         * without doing anything.
+         */
+        if (pr->flags.bm_check && pr->flags.bm_control) {
                 spin_lock(&c3_lock);
                 c3_cpu_count++;
                 /* Disable bus master arbitration when all CPUs are in C3 */
                 if (c3_cpu_count == num_online_cpus())
                         acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1);
                 spin_unlock(&c3_lock);
+        } else if (!pr->flags.bm_check) {
+                ACPI_FLUSH_CPU_CACHE();
+        }
 
-                t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
-                acpi_idle_do_entry(cx);
-                t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
+        t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
+        acpi_idle_do_entry(cx);
+        t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 
+        /* Re-enable bus master arbitration */
+        if (pr->flags.bm_check && pr->flags.bm_control) {
                 spin_lock(&c3_lock);
-                /* Re-enable bus master arbitration */
-                if (c3_cpu_count == num_online_cpus())
-                        acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
+                acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
                 c3_cpu_count--;
                 spin_unlock(&c3_lock);
         }
@@ -1525,6 +1543,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
         /* TSC could halt in idle, so notify users */
         mark_tsc_unstable("TSC halts in idle");
 #endif
+        sleep_ticks = ticks_elapsed(t1, t2);
+        /* Tell the scheduler how much we idled: */
+        sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
 
         local_irq_enable();
         current_thread_info()->status |= TS_POLLING;
@@ -1532,7 +1553,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
         cx->usage++;
 
         acpi_state_timer_broadcast(pr, cx, 0);
-        cx->time += ticks_elapsed(t1, t2);
+        cx->time += sleep_ticks;
         return ticks_elapsed_in_us(t1, t2);
 }
 
@@ -1584,12 +1605,14 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
                         case ACPI_STATE_C1:
                         state->flags |= CPUIDLE_FLAG_SHALLOW;
                         state->enter = acpi_idle_enter_c1;
+                        dev->safe_state = state;
                         break;
 
                         case ACPI_STATE_C2:
                         state->flags |= CPUIDLE_FLAG_BALANCED;
                         state->flags |= CPUIDLE_FLAG_TIME_VALID;
                         state->enter = acpi_idle_enter_simple;
+                        dev->safe_state = state;
                         break;
 
                         case ACPI_STATE_C3:
@@ -1610,14 +1633,6 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
         if (!count)
                 return -EINVAL;
 
-        /* find the deepest state that can handle active BM */
-        if (pr->flags.bm_check) {
-                for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++)
-                        if (pr->power.states[i].type == ACPI_STATE_C3)
-                                break;
-                pr->power.bm_state = &pr->power.states[i-1];
-        }
-
         return 0;
 }
 
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 0b8204e708..c26c61fb36 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -70,7 +70,55 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
 
 int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
 {
-        return acpi_processor_get_platform_limit(pr);
+        int result = 0;
+        int throttling_limit;
+        int current_state;
+        struct acpi_processor_limit *limit;
+        int target_state;
+
+        result = acpi_processor_get_platform_limit(pr);
+        if (result) {
+                /* Throttling Limit is unsupported */
+                return result;
+        }
+
+        throttling_limit = pr->throttling_platform_limit;
+        if (throttling_limit >= pr->throttling.state_count) {
+                /* Uncorrect Throttling Limit */
+                return -EINVAL;
+        }
+
+        current_state = pr->throttling.state;
+        if (current_state > throttling_limit) {
+                /*
+                 * The current state can meet the requirement of
+                 * _TPC limit. But it is reasonable that OSPM changes
+                 * t-states from high to low for better performance.
+                 * Of course the limit condition of thermal
+                 * and user should be considered.
+                 */
+                limit = &pr->limit;
+                target_state = throttling_limit;
+                if (limit->thermal.tx > target_state)
+                        target_state = limit->thermal.tx;
+                if (limit->user.tx > target_state)
+                        target_state = limit->user.tx;
+        } else if (current_state == throttling_limit) {
+                /*
+                 * Unnecessary to change the throttling state
+                 */
+                return 0;
+        } else {
+                /*
+                 * If the current state is lower than the limit of _TPC, it
+                 * will be forced to switch to the throttling state defined
+                 * by throttling_platfor_limit.
+                 * Because the previous state meets with the limit condition
+                 * of thermal and user, it is unnecessary to check it again.
+                 */
+                target_state = throttling_limit;
+        }
+        return acpi_processor_set_throttling(pr, target_state);
 }
 
 /*
@@ -83,6 +131,7 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
         struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
         union acpi_object *ptc = NULL;
         union acpi_object obj = { 0 };
+        struct acpi_processor_throttling *throttling;
 
         status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);
         if (ACPI_FAILURE(status)) {
@@ -134,6 +183,22 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
         memcpy(&pr->throttling.status_register, obj.buffer.pointer,
                sizeof(struct acpi_ptc_register));
 
+        throttling = &pr->throttling;
+
+        if ((throttling->control_register.bit_width +
+                throttling->control_register.bit_offset) > 32) {
+                printk(KERN_ERR PREFIX "Invalid _PTC control register\n");
+                result = -EFAULT;
+                goto end;
+        }
+
+        if ((throttling->status_register.bit_width +
+                throttling->status_register.bit_offset) > 32) {
+                printk(KERN_ERR PREFIX "Invalid _PTC status register\n");
+                result = -EFAULT;
+                goto end;
+        }
+
       end:
         kfree(buffer.pointer);
 
@@ -328,44 +393,132 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
         return 0;
 }
 
-static int acpi_read_throttling_status(struct acpi_processor_throttling
-                                       *throttling)
+#ifdef CONFIG_X86
+static int acpi_throttling_rdmsr(struct acpi_processor *pr,
+                                        acpi_integer * value)
 {
-        int value = -1;
+        struct cpuinfo_x86 *c;
+        u64 msr_high, msr_low;
+        unsigned int cpu;
+        u64 msr = 0;
+        int ret = -1;
+
+        cpu = pr->id;
+        c = &cpu_data(cpu);
+
+        if ((c->x86_vendor != X86_VENDOR_INTEL) ||
+                !cpu_has(c, X86_FEATURE_ACPI)) {
+                printk(KERN_ERR PREFIX
+                        "HARDWARE addr space,NOT supported yet\n");
+        } else {
+                msr_low = 0;
+                msr_high = 0;
+                rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL,
+                        (u32 *)&msr_low , (u32 *) &msr_high);
+                msr = (msr_high << 32) | msr_low;
+                *value = (acpi_integer) msr;
+                ret = 0;
+        }
+        return ret;
+}
+
+static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value)
+{
+        struct cpuinfo_x86 *c;
+        unsigned int cpu;
+        int ret = -1;
+        u64 msr;
+
+        cpu = pr->id;
+        c = &cpu_data(cpu);
+
+        if ((c->x86_vendor != X86_VENDOR_INTEL) ||
+                !cpu_has(c, X86_FEATURE_ACPI)) {
+                printk(KERN_ERR PREFIX
+                        "HARDWARE addr space,NOT supported yet\n");
+        } else {
+                msr = value;
+                wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL,
+                        msr & 0xffffffff, msr >> 32);
+                ret = 0;
+        }
+        return ret;
+}
+#else
+static int acpi_throttling_rdmsr(struct acpi_processor *pr,
+                                acpi_integer * value)
+{
+        printk(KERN_ERR PREFIX
+                "HARDWARE addr space,NOT supported yet\n");
+        return -1;
+}
+
+static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value)
+{
+        printk(KERN_ERR PREFIX
+                "HARDWARE addr space,NOT supported yet\n");
+        return -1;
+}
+#endif
+
+static int acpi_read_throttling_status(struct acpi_processor *pr,
+                                        acpi_integer *value)
+{
+        u32 bit_width, bit_offset;
+        u64 ptc_value;
+        u64 ptc_mask;
+        struct acpi_processor_throttling *throttling;
+        int ret = -1;
+
+        throttling = &pr->throttling;
         switch (throttling->status_register.space_id) {
         case ACPI_ADR_SPACE_SYSTEM_IO:
+                ptc_value = 0;
+                bit_width = throttling->status_register.bit_width;
+                bit_offset = throttling->status_register.bit_offset;
+
                 acpi_os_read_port((acpi_io_address) throttling->status_register.
-                                  address, &value,
-                                  (u32) throttling->status_register.bit_width *
-                                  8);
+                                  address, (u32 *) &ptc_value,
+                                  (u32) (bit_width + bit_offset));
+                ptc_mask = (1 << bit_width) - 1;
+                *value = (acpi_integer) ((ptc_value >> bit_offset) & ptc_mask);
+                ret = 0;
                 break;
         case ACPI_ADR_SPACE_FIXED_HARDWARE:
-                printk(KERN_ERR PREFIX
-                       "HARDWARE addr space,NOT supported yet\n");
+                ret = acpi_throttling_rdmsr(pr, value);
                 break;
         default:
                 printk(KERN_ERR PREFIX "Unknown addr space %d\n",
                        (u32) (throttling->status_register.space_id));
         }
-        return value;
+        return ret;
 }
 
-static int acpi_write_throttling_state(struct acpi_processor_throttling
-                                       *throttling, int value)
+static int acpi_write_throttling_state(struct acpi_processor *pr,
+                                acpi_integer value)
 {
+        u32 bit_width, bit_offset;
+        u64 ptc_value;
+        u64 ptc_mask;
+        struct acpi_processor_throttling *throttling;
         int ret = -1;
 
+        throttling = &pr->throttling;
         switch (throttling->control_register.space_id) {
         case ACPI_ADR_SPACE_SYSTEM_IO:
+                bit_width = throttling->control_register.bit_width;
+                bit_offset = throttling->control_register.bit_offset;
+                ptc_mask = (1 << bit_width) - 1;
+                ptc_value = value & ptc_mask;
+
                 acpi_os_write_port((acpi_io_address) throttling->
-                                   control_register.address, value,
-                                   (u32) throttling->control_register.
-                                   bit_width * 8);
+                                        control_register.address,
+                                        (u32) (ptc_value << bit_offset),
+                                        (u32) (bit_width + bit_offset));
                 ret = 0;
                 break;
         case ACPI_ADR_SPACE_FIXED_HARDWARE:
-                printk(KERN_ERR PREFIX
-                       "HARDWARE addr space,NOT supported yet\n");
+                ret = acpi_throttling_wrmsr(pr, value);
                 break;
         default:
                 printk(KERN_ERR PREFIX "Unknown addr space %d\n",
@@ -374,7 +527,8 @@ static int acpi_write_throttling_state(struct acpi_processor_throttling
         return ret;
 }
 
-static int acpi_get_throttling_state(struct acpi_processor *pr, int value)
+static int acpi_get_throttling_state(struct acpi_processor *pr,
+                                acpi_integer value)
 {
         int i;
 
@@ -390,22 +544,26 @@ static int acpi_get_throttling_state(struct acpi_processor *pr, int value)
         return i;
 }
 
-static int acpi_get_throttling_value(struct acpi_processor *pr, int state)
+static int acpi_get_throttling_value(struct acpi_processor *pr,
+                        int state, acpi_integer *value)
 {
-        int value = -1;
+        int ret = -1;
+
         if (state >= 0 && state <= pr->throttling.state_count) {
                 struct acpi_processor_tx_tss *tx =
                     (struct acpi_processor_tx_tss *)&(pr->throttling.
                                                       states_tss[state]);
-                value = tx->control;
+                *value = tx->control;
+                ret = 0;
         }
-        return value;
+        return ret;
 }
 
 static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
 {
         int state = 0;
-        u32 value = 0;
+        int ret;
+        acpi_integer value;
 
         if (!pr)
                 return -EINVAL;
@@ -415,8 +573,9 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
 
         pr->throttling.state = 0;
         local_irq_disable();
-        value = acpi_read_throttling_status(&pr->throttling);
-        if (value >= 0) {
+        value = 0;
+        ret = acpi_read_throttling_status(pr, &value);
+        if (ret >= 0) {
                 state = acpi_get_throttling_state(pr, value);
                 pr->throttling.state = state;
         }
@@ -430,6 +589,40 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
         return pr->throttling.acpi_processor_get_throttling(pr);
 }
 
+static int acpi_processor_get_fadt_info(struct acpi_processor *pr)
+{
+        int i, step;
+
+        if (!pr->throttling.address) {
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
+                return -EINVAL;
+        } else if (!pr->throttling.duty_width) {
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
+                return -EINVAL;
+        }
+        /* TBD: Support duty_cycle values that span bit 4. */
+        else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {
+                printk(KERN_WARNING PREFIX "duty_cycle spans bit 4\n");
+                return -EINVAL;
+        }
+
+        pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;
+
+        /*
+         * Compute state values. Note that throttling displays a linear power
+         * performance relationship (at 50% performance the CPU will consume
+         * 50% power).  Values are in 1/10th of a percent to preserve accuracy.
+         */
+
+        step = (1000 / pr->throttling.state_count);
+
+        for (i = 0; i < pr->throttling.state_count; i++) {
+                pr->throttling.states[i].performance = 1000 - step * i;
+                pr->throttling.states[i].power = 1000 - step * i;
+        }
+        return 0;
+}
+
 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
                                               int state)
 {
@@ -506,7 +699,8 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
                                              int state)
 {
-        u32 value = 0;
+        int ret;
+        acpi_integer value;
 
         if (!pr)
                 return -EINVAL;
@@ -524,10 +718,10 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
                 return -EPERM;
 
         local_irq_disable();
-
-        value = acpi_get_throttling_value(pr, state);
-        if (value >= 0) {
-                acpi_write_throttling_state(&pr->throttling, value);
+        value = 0;
+        ret = acpi_get_throttling_value(pr, state, &value);
+        if (ret >= 0) {
+                acpi_write_throttling_state(pr, value);
                 pr->throttling.state = state;
         }
         local_irq_enable();
@@ -543,8 +737,6 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
 int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 {
         int result = 0;
-        int step = 0;
-        int i = 0;
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                           "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
@@ -563,6 +755,8 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
                 acpi_processor_get_throttling_states(pr) ||
                 acpi_processor_get_platform_limit(pr))
         {
+                if (acpi_processor_get_fadt_info(pr))
+                        return 0;
                 pr->throttling.acpi_processor_get_throttling =
                     &acpi_processor_get_throttling_fadt;
                 pr->throttling.acpi_processor_set_throttling =
@@ -576,19 +770,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
 
         acpi_processor_get_tsd(pr);
 
-        if (!pr->throttling.address) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
-                return 0;
-        } else if (!pr->throttling.duty_width) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
-                return 0;
-        }
-        /* TBD: Support duty_cycle values that span bit 4. */
-        else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {
-                printk(KERN_WARNING PREFIX "duty_cycle spans bit 4\n");
-                return 0;
-        }
-
         /*
          * PIIX4 Errata: We don't support throttling on the original PIIX4.
          * This shouldn't be an issue as few (if any) mobile systems ever
@@ -600,21 +781,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
                 return 0;
         }
 
-        pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;
-
-        /*
-         * Compute state values. Note that throttling displays a linear power/
-         * performance relationship (at 50% performance the CPU will consume
-         * 50% power).  Values are in 1/10th of a percent to preserve accuracy.
-         */
-
-        step = (1000 / pr->throttling.state_count);
-
-        for (i = 0; i < pr->throttling.state_count; i++) {
-                pr->throttling.states[i].performance = step * i;
-                pr->throttling.states[i].power = step * i;
-        }
-
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d throttling states\n",
                           pr->throttling.state_count));
 
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 90fd09c65f..6045cdbe17 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -29,7 +29,7 @@
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <asm/uaccess.h>
@@ -88,7 +88,7 @@ MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
 struct acpi_battery {
         struct power_supply bat;
         struct acpi_sbs *sbs;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         struct proc_dir_entry *proc_entry;
 #endif
         unsigned long update_time;
@@ -113,6 +113,7 @@ struct acpi_battery {
         u16 spec;
         u8 id;
         u8 present:1;
+        u8 have_sysfs_alarm:1;
 };
 
 #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
@@ -122,7 +123,7 @@ struct acpi_sbs {
         struct acpi_device *device;
         struct acpi_smb_hc *hc;
         struct mutex lock;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         struct proc_dir_entry *charger_entry;
 #endif
         struct acpi_battery battery[MAX_SBS_BAT];
@@ -468,7 +469,7 @@ static struct device_attribute alarm_attr = {
                               FS Interface (/proc/acpi)
    -------------------------------------------------------------------------- */
 
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
 /* Generic Routines */
 static int
 acpi_sbs_add_fs(struct proc_dir_entry **dir,
@@ -789,7 +790,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
                 return result;
 
         sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
                         battery->name, &acpi_battery_info_fops,
                         &acpi_battery_state_fops, &acpi_battery_alarm_fops,
@@ -808,7 +809,13 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
         }
         battery->bat.get_property = acpi_sbs_battery_get_property;
         result = power_supply_register(&sbs->device->dev, &battery->bat);
-        device_create_file(battery->bat.dev, &alarm_attr);
+        if (result)
+                goto end;
+        result = device_create_file(battery->bat.dev, &alarm_attr);
+        if (result)
+                goto end;
+        battery->have_sysfs_alarm = 1;
+      end:
         printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
                ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
                battery->name, sbs->battery->present ? "present" : "absent");
@@ -817,14 +824,16 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
 
 static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
 {
-        if (sbs->battery[id].bat.dev)
-                device_remove_file(sbs->battery[id].bat.dev, &alarm_attr);
-                power_supply_unregister(&sbs->battery[id].bat);
-#ifdef CONFIG_ACPI_PROCFS
-        if (sbs->battery[id].proc_entry) {
-                acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
-                                   acpi_battery_dir);
+        struct acpi_battery *battery = &sbs->battery[id];
+
+        if (battery->bat.dev) {
+                if (battery->have_sysfs_alarm)
+                        device_remove_file(battery->bat.dev, &alarm_attr);
+                power_supply_unregister(&battery->bat);
         }
+#ifdef CONFIG_ACPI_PROCFS_POWER
+        if (battery->proc_entry)
+                acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir);
 #endif
 }
 
@@ -835,7 +844,7 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
         result = acpi_ac_get_present(sbs);
         if (result)
                 goto end;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
                                  ACPI_AC_DIR_NAME, NULL,
                                  &acpi_ac_state_fops, NULL, sbs);
@@ -859,7 +868,7 @@ static void acpi_charger_remove(struct acpi_sbs *sbs)
 {
         if (sbs->charger.dev)
                 power_supply_unregister(&sbs->charger);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         if (sbs->charger_entry)
                 acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
 #endif
@@ -965,7 +974,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
 
 static void acpi_sbs_rmdirs(void)
 {
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         if (acpi_ac_dir) {
                 acpi_unlock_ac_dir(acpi_ac_dir);
                 acpi_ac_dir = NULL;
@@ -1004,7 +1013,7 @@ static int __init acpi_sbs_init(void)
 
         if (acpi_disabled)
                 return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_ac_dir = acpi_lock_ac_dir();
         if (!acpi_ac_dir)
                 return -ENODEV;
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 5f1d85f2ff..010f19652f 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -449,7 +449,7 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
                         /* XSDT has NULL entry, RSDT is used */
                         address = rsdt_address;
                         table_entry_size = sizeof(u32);
-                        ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry,"
+                        ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, "
                                         "using RSDT"));
                 }
         }
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bac956b30c..44a0d9ba9b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -29,6 +29,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/mutex.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/input.h>
@@ -135,8 +136,8 @@ struct acpi_video_bus {
         u8 attached_count;
         struct acpi_video_bus_cap cap;
         struct acpi_video_bus_flags flags;
-        struct semaphore sem;
         struct list_head video_device_list;
+        struct mutex device_list_lock;  /* protects video_device_list */
         struct proc_dir_entry *dir;
         struct input_dev *input;
         char phys[32];  /* for input device */
@@ -896,7 +897,7 @@ acpi_video_device_write_brightness(struct file *file,
 {
         struct seq_file *m = file->private_data;
         struct acpi_video_device *dev = m->private;
-        char str[4] = { 0 };
+        char str[5] = { 0 };
         unsigned int level = 0;
         int i;
 
@@ -1436,9 +1437,9 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
                         return -ENODEV;
                 }
 
-                down(&video->sem);
+                mutex_lock(&video->device_list_lock);
                 list_add_tail(&data->entry, &video->video_device_list);
-                up(&video->sem);
+                mutex_unlock(&video->device_list_lock);
 
                 acpi_video_device_add_fs(device);
 
@@ -1462,12 +1463,14 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
 
 static void acpi_video_device_rebind(struct acpi_video_bus *video)
 {
-        struct list_head *node, *next;
-        list_for_each_safe(node, next, &video->video_device_list) {
-                struct acpi_video_device *dev =
-                    container_of(node, struct acpi_video_device, entry);
+        struct acpi_video_device *dev;
+
+        mutex_lock(&video->device_list_lock);
+
+        list_for_each_entry(dev, &video->video_device_list, entry)
                 acpi_video_device_bind(video, dev);
-        }
+
+        mutex_unlock(&video->device_list_lock);
 }
 
 /*
@@ -1592,30 +1595,33 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
 
 static int acpi_video_switch_output(struct acpi_video_bus *video, int event)
 {
-        struct list_head *node, *next;
+        struct list_head *node;
         struct acpi_video_device *dev = NULL;
         struct acpi_video_device *dev_next = NULL;
         struct acpi_video_device *dev_prev = NULL;
         unsigned long state;
         int status = 0;
 
+        mutex_lock(&video->device_list_lock);
 
-        list_for_each_safe(node, next, &video->video_device_list) {
+        list_for_each(node, &video->video_device_list) {
                 dev = container_of(node, struct acpi_video_device, entry);
                 status = acpi_video_device_get_state(dev, &state);
                 if (state & 0x2) {
-                        dev_next =
-                            container_of(node->next, struct acpi_video_device,
-                                         entry);
-                        dev_prev =
-                            container_of(node->prev, struct acpi_video_device,
-                                         entry);
+                        dev_next = container_of(node->next,
+                                        struct acpi_video_device, entry);
+                        dev_prev = container_of(node->prev,
+                                        struct acpi_video_device, entry);
                         goto out;
                 }
         }
+
         dev_next = container_of(node->next, struct acpi_video_device, entry);
         dev_prev = container_of(node->prev, struct acpi_video_device, entry);
-      out:
+
+ out:
+        mutex_unlock(&video->device_list_lock);
+
         switch (event) {
         case ACPI_VIDEO_NOTIFY_CYCLE:
         case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:
@@ -1691,24 +1697,17 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
                            struct acpi_device *device)
 {
         int status = 0;
-        struct list_head *node, *next;
-
+        struct acpi_device *dev;
 
         acpi_video_device_enumerate(video);
 
-        list_for_each_safe(node, next, &device->children) {
-                struct acpi_device *dev =
-                    list_entry(node, struct acpi_device, node);
-
-                if (!dev)
-                        continue;
+        list_for_each_entry(dev, &device->children, node) {
 
                 status = acpi_video_bus_get_one_device(dev, video);
                 if (ACPI_FAILURE(status)) {
                         ACPI_EXCEPTION((AE_INFO, status, "Cant attach device"));
                         continue;
                 }
-
         }
         return status;
 }
@@ -1724,9 +1723,6 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
 
         video = device->video;
 
-        down(&video->sem);
-        list_del(&device->entry);
-        up(&video->sem);
         acpi_video_device_remove_fs(device->dev);
 
         status = acpi_remove_notify_handler(device->dev->handle,
@@ -1734,32 +1730,34 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
                                             acpi_video_device_notify);
         backlight_device_unregister(device->backlight);
         video_output_unregister(device->output_dev);
+
         return 0;
 }
 
 static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
 {
         int status;
-        struct list_head *node, *next;
+        struct acpi_video_device *dev, *next;
 
+        mutex_lock(&video->device_list_lock);
 
-        list_for_each_safe(node, next, &video->video_device_list) {
-                struct acpi_video_device *data =
-                    list_entry(node, struct acpi_video_device, entry);
-                if (!data)
-                        continue;
+        list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
 
-                status = acpi_video_bus_put_one_device(data);
+                status = acpi_video_bus_put_one_device(dev);
                 if (ACPI_FAILURE(status))
                         printk(KERN_WARNING PREFIX
                                "hhuuhhuu bug in acpi video driver.\n");
 
-                if (data->brightness)
-                        kfree(data->brightness->levels);
-                kfree(data->brightness);
-                kfree(data);
+                if (dev->brightness) {
+                        kfree(dev->brightness->levels);
+                        kfree(dev->brightness);
+                }
+                list_del(&dev->entry);
+                kfree(dev);
         }
 
+        mutex_unlock(&video->device_list_lock);
+
         return 0;
 }
 
@@ -1782,9 +1780,6 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
         struct input_dev *input;
         int keycode;
 
-
-        printk("video bus notify\n");
-
         if (!video)
                 return;
 
@@ -1897,14 +1892,10 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 static int instance;
 static int acpi_video_bus_add(struct acpi_device *device)
 {
-        int result = 0;
-        acpi_status status = 0;
-        struct acpi_video_bus *video = NULL;
+        acpi_status status;
+        struct acpi_video_bus *video;
         struct input_dev *input;
-
-
-        if (!device)
-                return -EINVAL;
+        int error;
 
         video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
         if (!video)
@@ -1923,15 +1914,15 @@ static int acpi_video_bus_add(struct acpi_device *device)
         acpi_driver_data(device) = video;
 
         acpi_video_bus_find_cap(video);
-        result = acpi_video_bus_check(video);
-        if (result)
-                goto end;
+        error = acpi_video_bus_check(video);
+        if (error)
+                goto err_free_video;
 
-        result = acpi_video_bus_add_fs(device);
-        if (result)
-                goto end;
+        error = acpi_video_bus_add_fs(device);
+        if (error)
+                goto err_free_video;
 
-        init_MUTEX(&video->sem);
+        mutex_init(&video->device_list_lock);
         INIT_LIST_HEAD(&video->video_device_list);
 
         acpi_video_bus_get_devices(video, device);
@@ -1943,16 +1934,15 @@ static int acpi_video_bus_add(struct acpi_device *device)
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                   "Error installing notify handler\n"));
-                acpi_video_bus_stop_devices(video);
-                acpi_video_bus_put_devices(video);
-                kfree(video->attached_array);
-                acpi_video_bus_remove_fs(device);
-                result = -ENODEV;
-                goto end;
+                error = -ENODEV;
+                goto err_stop_video;
         }
 
-
         video->input = input = input_allocate_device();
+        if (!input) {
+                error = -ENOMEM;
+                goto err_uninstall_notify;
+        }
 
         snprintf(video->phys, sizeof(video->phys),
                 "%s/video/input0", acpi_device_hid(video->device));
@@ -1961,6 +1951,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
         input->phys = video->phys;
         input->id.bustype = BUS_HOST;
         input->id.product = 0x06;
+        input->dev.parent = &device->dev;
         input->evbit[0] = BIT(EV_KEY);
         set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
         set_bit(KEY_VIDEO_NEXT, input->keybit);
@@ -1971,18 +1962,10 @@ static int acpi_video_bus_add(struct acpi_device *device)
         set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
         set_bit(KEY_DISPLAY_OFF, input->keybit);
         set_bit(KEY_UNKNOWN, input->keybit);
-        result = input_register_device(input);
-        if (result) {
-                acpi_remove_notify_handler(video->device->handle,
-                                                ACPI_DEVICE_NOTIFY,
-                                                acpi_video_bus_notify);
-                acpi_video_bus_stop_devices(video);
-                acpi_video_bus_put_devices(video);
-                kfree(video->attached_array);
-                acpi_video_bus_remove_fs(device);
-                goto end;
-        }
 
+        error = input_register_device(input);
+        if (error)
+                goto err_free_input_dev;
 
         printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
                ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
@@ -1990,11 +1973,23 @@ static int acpi_video_bus_add(struct acpi_device *device)
                video->flags.rom ? "yes" : "no",
                video->flags.post ? "yes" : "no");
 
-      end:
-        if (result)
-                kfree(video);
+        return 0;
+
+ err_free_input_dev:
+        input_free_device(input);
+ err_uninstall_notify:
+        acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
+                                   acpi_video_bus_notify);
+ err_stop_video:
+        acpi_video_bus_stop_devices(video);
+        acpi_video_bus_put_devices(video);
+        kfree(video->attached_array);
+        acpi_video_bus_remove_fs(device);
+ err_free_video:
+        kfree(video);
+        acpi_driver_data(device) = NULL;
 
-        return result;
+        return error;
 }
 
 static int acpi_video_bus_remove(struct acpi_device *device, int type)
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3cf7129d83..924ddd8bcc 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -223,7 +223,7 @@ static int virtblk_probe(struct virtio_device *vdev)
         err = virtio_config_val(vdev, VIRTIO_CONFIG_BLK_F_CAPACITY, &cap);
         if (err) {
                 dev_err(&vdev->dev, "Bad/missing capacity in config\n");
-                goto out_put_disk;
+                goto out_cleanup_queue;
         }
 
         /* If capacity is too big, truncate with warning. */
@@ -239,7 +239,7 @@ static int virtblk_probe(struct virtio_device *vdev)
                 blk_queue_max_segment_size(vblk->disk->queue, v);
         else if (err != -ENOENT) {
                 dev_err(&vdev->dev, "Bad SIZE_MAX in config\n");
-                goto out_put_disk;
+                goto out_cleanup_queue;
         }
 
         err = virtio_config_val(vdev, VIRTIO_CONFIG_BLK_F_SEG_MAX, &v);
@@ -247,12 +247,14 @@ static int virtblk_probe(struct virtio_device *vdev)
                 blk_queue_max_hw_segments(vblk->disk->queue, v);
         else if (err != -ENOENT) {
                 dev_err(&vdev->dev, "Bad SEG_MAX in config\n");
-                goto out_put_disk;
+                goto out_cleanup_queue;
         }
 
         add_disk(vblk->disk);
         return 0;
 
+out_cleanup_queue:
+        blk_cleanup_queue(vblk->disk->queue);
 out_put_disk:
         put_disk(vblk->disk);
 out_unregister_blkdev:
@@ -277,6 +279,8 @@ static void virtblk_remove(struct virtio_device *vdev)
         put_disk(vblk->disk);
         unregister_blkdev(major, "virtblk");
         mempool_destroy(vblk->pool);
+        /* There should be nothing in the queue now, so no need to shutdown */
+        vdev->config->del_vq(vblk->vq);
         kfree(vblk);
 }
 
diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index b39d1f5b37..ced83c202c 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -2104,7 +2104,7 @@ isdn_net_find_icall(int di, int ch, int idx, setup_parm *setup)
         u_long flags;
         isdn_net_dev *p;
         isdn_net_phone *n;
-        char nr[32];
+        char nr[ISDN_MSNLEN];
         char *my_eaz;
 
         /* Search name in netdev-chain */
@@ -2113,7 +2113,7 @@ isdn_net_find_icall(int di, int ch, int idx, setup_parm *setup)
                 nr[1] = '\0';
                 printk(KERN_INFO "isdn_net: Incoming call without OAD, assuming '0'\n");
         } else
-                strcpy(nr, setup->phone);
+                strlcpy(nr, setup->phone, ISDN_MSNLEN);
         si1 = (int) setup->si1;
         si2 = (int) setup->si2;
         if (!setup->eazmsn[0]) {
@@ -2789,7 +2789,7 @@ isdn_net_setcfg(isdn_net_ioctl_cfg * cfg)
                                 chidx = -1;
                         }
                 }
-                strcpy(lp->msn, cfg->eaz);
+                strlcpy(lp->msn, cfg->eaz, sizeof(lp->msn));
                 lp->pre_device = drvidx;
                 lp->pre_channel = chidx;
                 lp->onhtime = cfg->onhtime;
@@ -2936,7 +2936,7 @@ isdn_net_addphone(isdn_net_ioctl_phone * phone)
         if (p) {
                 if (!(n = kmalloc(sizeof(isdn_net_phone), GFP_KERNEL)))
                         return -ENOMEM;
-                strcpy(n->num, phone->phone);
+                strlcpy(n->num, phone->phone, sizeof(n->num));
                 n->next = p->local->phone[phone->outgoing & 1];
                 p->local->phone[phone->outgoing & 1] = n;
                 return 0;
diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index 66f3872225..e2eec38c83 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -247,6 +247,8 @@ static void lg_del_vq(struct virtqueue *vq)
 {
         struct lguest_vq_info *lvq = vq->priv;
 
+        /* Release the interrupt */
+        free_irq(lvq->config.irq, vq);
         /* Tell virtio_ring.c to free the virtqueue. */
         vring_del_virtqueue(vq);
         /* Unmap the pages containing the ring. */
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index e953276664..ab23a32215 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -21,7 +21,7 @@
  *  02110-1301, USA.
  */
 
-#define IBM_VERSION "0.16"
+#define IBM_VERSION "0.17"
 #define TPACPI_SYSFS_VERSION 0x020000
 
 /*
@@ -964,15 +964,15 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
                 KEY_UNKNOWN,    /* 0x0C: FN+BACKSPACE */
                 KEY_UNKNOWN,    /* 0x0D: FN+INSERT */
                 KEY_UNKNOWN,    /* 0x0E: FN+DELETE */
-                KEY_BRIGHTNESSUP,       /* 0x0F: FN+HOME (brightness up) */
+                KEY_RESERVED,   /* 0x0F: FN+HOME (brightness up) */
                 /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
-                KEY_BRIGHTNESSDOWN,     /* 0x10: FN+END (brightness down) */
+                KEY_RESERVED,   /* 0x10: FN+END (brightness down) */
                 KEY_RESERVED,   /* 0x11: FN+PGUP (thinklight toggle) */
                 KEY_UNKNOWN,    /* 0x12: FN+PGDOWN */
                 KEY_ZOOM,       /* 0x13: FN+SPACE (zoom) */
-                KEY_VOLUMEUP,   /* 0x14: VOLUME UP */
-                KEY_VOLUMEDOWN, /* 0x15: VOLUME DOWN */
-                KEY_MUTE,       /* 0x16: MUTE */
+                KEY_RESERVED,   /* 0x14: VOLUME UP */
+                KEY_RESERVED,   /* 0x15: VOLUME DOWN */
+                KEY_RESERVED,   /* 0x16: MUTE */
                 KEY_VENDOR,     /* 0x17: Thinkpad/AccessIBM/Lenovo */
                 /* (assignments unknown, please report if found) */
                 KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
@@ -993,9 +993,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
                 KEY_RESERVED,   /* 0x11: FN+PGUP (thinklight toggle) */
                 KEY_UNKNOWN,    /* 0x12: FN+PGDOWN */
                 KEY_ZOOM,       /* 0x13: FN+SPACE (zoom) */
-                KEY_VOLUMEUP,   /* 0x14: VOLUME UP */
-                KEY_VOLUMEDOWN, /* 0x15: VOLUME DOWN */
-                KEY_MUTE,       /* 0x16: MUTE */
+                KEY_RESERVED,   /* 0x14: VOLUME UP */
+                KEY_RESERVED,   /* 0x15: VOLUME DOWN */
+                KEY_RESERVED,   /* 0x16: MUTE */
                 KEY_VENDOR,     /* 0x17: Thinkpad/AccessIBM/Lenovo */
                 /* (assignments unknown, please report if found) */
                 KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
@@ -1342,9 +1342,8 @@ static int hotkey_read(char *p)
                 return len;
         }
 
-        res = mutex_lock_interruptible(&hotkey_mutex);
-        if (res < 0)
-                return res;
+        if (mutex_lock_interruptible(&hotkey_mutex))
+                return -ERESTARTSYS;
         res = hotkey_get(&status, &mask);
         mutex_unlock(&hotkey_mutex);
         if (res)
@@ -1373,9 +1372,8 @@ static int hotkey_write(char *buf)
         if (!tp_features.hotkey)
                 return -ENODEV;
 
-        res = mutex_lock_interruptible(&hotkey_mutex);
-        if (res < 0)
-                return res;
+        if (mutex_lock_interruptible(&hotkey_mutex))
+                return -ERESTARTSYS;
 
         res = hotkey_get(&status, &mask);
         if (res)
@@ -3114,6 +3112,99 @@ static struct backlight_ops ibm_backlight_data = {
 
 static struct mutex brightness_mutex;
 
+static int __init tpacpi_query_bcll_levels(acpi_handle handle)
+{
+        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+        union acpi_object *obj;
+        int rc;
+
+        if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
+                obj = (union acpi_object *)buffer.pointer;
+                if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
+                        printk(IBM_ERR "Unknown BCLL data, "
+                               "please report this to %s\n", IBM_MAIL);
+                        rc = 0;
+                } else {
+                        rc = obj->package.count;
+                }
+        } else {
+                return 0;
+        }
+
+        kfree(buffer.pointer);
+        return rc;
+}
+
+static acpi_status __init brightness_find_bcll(acpi_handle handle, u32 lvl,
+                                        void *context, void **rv)
+{
+        char name[ACPI_PATH_SEGMENT_LENGTH];
+        struct acpi_buffer buffer = { sizeof(name), &name };
+
+        if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
+            !strncmp("BCLL", name, sizeof(name) - 1)) {
+                if (tpacpi_query_bcll_levels(handle) == 16) {
+                        *rv = handle;
+                        return AE_CTRL_TERMINATE;
+                } else {
+                        return AE_OK;
+                }
+        } else {
+                return AE_OK;
+        }
+}
+
+static int __init brightness_check_levels(void)
+{
+        int status;
+        void *found_node = NULL;
+
+        if (!vid_handle) {
+                IBM_ACPIHANDLE_INIT(vid);
+        }
+        if (!vid_handle)
+                return 0;
+
+        /* Search for a BCLL package with 16 levels */
+        status = acpi_walk_namespace(ACPI_TYPE_PACKAGE, vid_handle, 3,
+                                        brightness_find_bcll, NULL, &found_node);
+
+        return (ACPI_SUCCESS(status) && found_node != NULL);
+}
+
+static acpi_status __init brightness_find_bcl(acpi_handle handle, u32 lvl,
+                                        void *context, void **rv)
+{
+        char name[ACPI_PATH_SEGMENT_LENGTH];
+        struct acpi_buffer buffer = { sizeof(name), &name };
+
+        if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
+            !strncmp("_BCL", name, sizeof(name) - 1)) {
+                *rv = handle;
+                return AE_CTRL_TERMINATE;
+        } else {
+                return AE_OK;
+        }
+}
+
+static int __init brightness_check_std_acpi_support(void)
+{
+        int status;
+        void *found_node = NULL;
+
+        if (!vid_handle) {
+                IBM_ACPIHANDLE_INIT(vid);
+        }
+        if (!vid_handle)
+                return 0;
+
+        /* Search for a _BCL method, but don't execute it */
+        status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
+                                     brightness_find_bcl, NULL, &found_node);
+
+        return (ACPI_SUCCESS(status) && found_node != NULL);
+}
+
 static int __init brightness_init(struct ibm_init_struct *iibm)
 {
         int b;
@@ -3122,6 +3213,18 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
 
         mutex_init(&brightness_mutex);
 
+        if (!brightness_enable) {
+                dbg_printk(TPACPI_DBG_INIT,
+                           "brightness support disabled by module parameter\n");
+                return 1;
+        } else if (brightness_enable > 1) {
+                if (brightness_check_std_acpi_support()) {
+                        printk(IBM_NOTICE
+                               "standard ACPI backlight interface available, not loading native one...\n");
+                        return 1;
+                }
+        }
+
         if (!brightness_mode) {
                 if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO)
                         brightness_mode = 2;
@@ -3135,10 +3238,17 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
         if (brightness_mode > 3)
                 return -EINVAL;
 
+        tp_features.bright_16levels =
+                        thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO &&
+                        brightness_check_levels();
+
         b = brightness_get(NULL);
         if (b < 0)
                 return 1;
 
+        if (tp_features.bright_16levels)
+                printk(IBM_INFO "detected a 16-level brightness capable ThinkPad\n");
+
         ibm_backlight_device = backlight_device_register(
                                         TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
                                         &ibm_backlight_data);
@@ -3148,7 +3258,8 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
         }
         vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n");
 
-        ibm_backlight_device->props.max_brightness = 7;
+        ibm_backlight_device->props.max_brightness =
+                                (tp_features.bright_16levels)? 15 : 7;
         ibm_backlight_device->props.brightness = b;
         backlight_update_status(ibm_backlight_device);
 
@@ -3167,6 +3278,8 @@ static void brightness_exit(void)
 
 static int brightness_update_status(struct backlight_device *bd)
 {
+        /* it is the backlight class's job (caller) to handle
+         * EINTR and other errors properly */
         return brightness_set(
                 (bd->props.fb_blank == FB_BLANK_UNBLANK &&
                  bd->props.power == FB_BLANK_UNBLANK) ?
@@ -3184,13 +3297,14 @@ static int brightness_get(struct backlight_device *bd)
         if (brightness_mode & 1) {
                 if (!acpi_ec_read(brightness_offset, &lec))
                         return -EIO;
-                lec &= 7;
+                lec &= (tp_features.bright_16levels)? 0x0f : 0x07;
                 level = lec;
         };
         if (brightness_mode & 2) {
                 lcmos = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
                          & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
                         >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
+                lcmos &= (tp_features.bright_16levels)? 0x0f : 0x07;
                 level = lcmos;
         }
 
@@ -3206,12 +3320,13 @@ static int brightness_get(struct backlight_device *bd)
         return level;
 }
 
+/* May return EINTR which can always be mapped to ERESTARTSYS */
 static int brightness_set(int value)
 {
         int cmos_cmd, inc, i, res;
         int current_value;
 
-        if (value > 7)
+        if (value > ((tp_features.bright_16levels)? 15 : 7))
                 return -EINVAL;
 
         res = mutex_lock_interruptible(&brightness_mutex);
@@ -3227,7 +3342,7 @@ static int brightness_set(int value)
         cmos_cmd = value > current_value ?
                         TP_CMOS_BRIGHTNESS_UP :
                         TP_CMOS_BRIGHTNESS_DOWN;
-        inc = value > current_value ? 1 : -1;
+        inc = (value > current_value)? 1 : -1;
 
         res = 0;
         for (i = current_value; i != value; i += inc) {
@@ -3256,10 +3371,11 @@ static int brightness_read(char *p)
         if ((level = brightness_get(NULL)) < 0) {
                 len += sprintf(p + len, "level:\t\tunreadable\n");
         } else {
-                len += sprintf(p + len, "level:\t\t%d\n", level & 0x7);
+                len += sprintf(p + len, "level:\t\t%d\n", level);
                 len += sprintf(p + len, "commands:\tup, down\n");
                 len += sprintf(p + len, "commands:\tlevel <level>"
-                               " (<level> is 0-7)\n");
+                               " (<level> is 0-%d)\n",
+                               (tp_features.bright_16levels) ? 15 : 7);
         }
 
         return len;
@@ -3268,28 +3384,34 @@ static int brightness_read(char *p)
 static int brightness_write(char *buf)
 {
         int level;
-        int new_level;
+        int rc;
         char *cmd;
+        int max_level = (tp_features.bright_16levels) ? 15 : 7;
 
-        while ((cmd = next_cmd(&buf))) {
-                if ((level = brightness_get(NULL)) < 0)
-                        return level;
-                level &= 7;
+        level = brightness_get(NULL);
+        if (level < 0)
+                return level;
 
+        while ((cmd = next_cmd(&buf))) {
                 if (strlencmp(cmd, "up") == 0) {
-                        new_level = level == 7 ? 7 : level + 1;
+                        if (level < max_level)
+                                level++;
                 } else if (strlencmp(cmd, "down") == 0) {
-                        new_level = level == 0 ? 0 : level - 1;
-                } else if (sscanf(cmd, "level %d", &new_level) == 1 &&
-                           new_level >= 0 && new_level <= 7) {
-                        /* new_level set */
+                        if (level > 0)
+                                level--;
+                } else if (sscanf(cmd, "level %d", &level) == 1 &&
+                           level >= 0 && level <= max_level) {
+                        /* new level set */
                 } else
                         return -EINVAL;
-
-                brightness_set(new_level);
         }
 
-        return 0;
+        /*
+         * Now we know what the final level should be, so we try to set it.
+         * Doing it this way makes the syscall restartable in case of EINTR
+         */
+        rc = brightness_set(level);
+        return (rc == -EINTR)? ERESTARTSYS : rc;
 }
 
 static struct ibm_struct brightness_driver_data = {
@@ -3652,9 +3774,8 @@ static ssize_t fan_pwm1_store(struct device *dev,
         /* scale down from 0-255 to 0-7 */
         newlevel = (s >> 5) & 0x07;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
 
         rc = fan_get_status(&status);
         if (!rc && (status &
@@ -3904,9 +4025,8 @@ static int fan_get_status_safe(u8 *status)
         int rc;
         u8 s;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
         rc = fan_get_status(&s);
         if (!rc)
                 fan_update_desired_level(s);
@@ -4040,9 +4160,8 @@ static int fan_set_level_safe(int level)
         if (!fan_control_allowed)
                 return -EPERM;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
 
         if (level == TPACPI_FAN_LAST_LEVEL)
                 level = fan_control_desired_level;
@@ -4063,9 +4182,8 @@ static int fan_set_enable(void)
         if (!fan_control_allowed)
                 return -EPERM;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
 
         switch (fan_control_access_mode) {
         case TPACPI_FAN_WR_ACPI_FANS:
@@ -4119,9 +4237,8 @@ static int fan_set_disable(void)
         if (!fan_control_allowed)
                 return -EPERM;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
 
         rc = 0;
         switch (fan_control_access_mode) {
@@ -4158,9 +4275,8 @@ static int fan_set_speed(int speed)
         if (!fan_control_allowed)
                 return -EPERM;
 
-        rc = mutex_lock_interruptible(&fan_mutex);
-        if (rc < 0)
-                return rc;
+        if (mutex_lock_interruptible(&fan_mutex))
+                return -ERESTARTSYS;
 
         rc = 0;
         switch (fan_control_access_mode) {
@@ -4701,9 +4817,15 @@ static int __init set_ibm_param(const char *val, struct kernel_param *kp)
         unsigned int i;
         struct ibm_struct *ibm;
 
+        if (!kp || !kp->name || !val)
+                return -EINVAL;
+
         for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
                 ibm = ibms_init[i].data;
-                BUG_ON(ibm == NULL);
+                WARN_ON(ibm == NULL);
+
+                if (!ibm || !ibm->name)
+                        continue;
 
                 if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
                         if (strlen(val) > sizeof(ibms_init[i].param) - 2)
@@ -4732,6 +4854,9 @@ module_param_named(fan_control, fan_control_allowed, bool, 0);
 static int brightness_mode;
 module_param_named(brightness_mode, brightness_mode, int, 0);
 
+static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
+module_param(brightness_enable, uint, 0);
+
 static unsigned int hotkey_report_mode;
 module_param(hotkey_report_mode, uint, 0);
 
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 3abcc81206..8fba2bbe34 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -84,7 +84,7 @@
 
 /* ThinkPad CMOS NVRAM constants */
 #define TP_NVRAM_ADDR_BRIGHTNESS       0x5e
-#define TP_NVRAM_MASK_LEVEL_BRIGHTNESS 0x07
+#define TP_NVRAM_MASK_LEVEL_BRIGHTNESS 0x0f
 #define TP_NVRAM_POS_LEVEL_BRIGHTNESS 0
 
 #define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off")
@@ -246,6 +246,7 @@ static struct {
         u32 hotkey_wlsw:1;
         u32 light:1;
         u32 light_status:1;
+        u32 bright_16levels:1;
         u32 wan:1;
         u32 fan_ctrl_status_undef:1;
         u32 input_device_registered:1;
@@ -338,6 +339,7 @@ static int bluetooth_write(char *buf);
 static struct backlight_device *ibm_backlight_device;
 static int brightness_offset = 0x31;
 static int brightness_mode;
+static unsigned int brightness_enable;  /* 0 = no, 1 = yes, 2 = auto */
 
 static int brightness_init(struct ibm_init_struct *iibm);
 static void brightness_exit(void);
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a75be57fb2..5413dbf3d4 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -198,8 +198,8 @@ again:
         if (vi->num < vi->max / 2)
                 try_fill_recv(vi);
 
-        /* All done? */
-        if (!skb) {
+        /* Out of packets? */
+        if (received < budget) {
                 netif_rx_complete(vi->dev, napi);
                 if (unlikely(!vi->rvq->vq_ops->restart(vi->rvq))
                     && netif_rx_reschedule(vi->dev, napi))
@@ -404,8 +404,12 @@ free:
 
 static void virtnet_remove(struct virtio_device *vdev)
 {
-        unregister_netdev(vdev->priv);
-        free_netdev(vdev->priv);
+        struct virtnet_info *vi = vdev->priv;
+
+        vdev->config->del_vq(vi->svq);
+        vdev->config->del_vq(vi->rvq);
+        unregister_netdev(vi->dev);
+        free_netdev(vi->dev);
 }
 
 static struct virtio_device_id id_table[] = {
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index cd0a204d96..11adab13f2 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -75,6 +75,7 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
 {
         int i = 0;
         int irq;
+        int p, t;
 
         if (!valid_IRQ(gsi))
                 return;
@@ -85,15 +86,22 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
         if (i >= PNP_MAX_IRQ)
                 return;
 
-#ifdef CONFIG_X86
-        if (gsi < 16 && (triggering != ACPI_EDGE_SENSITIVE ||
-                                polarity != ACPI_ACTIVE_HIGH)) {
-                pnp_warn("BIOS BUG: legacy PNP IRQ %d should be edge trigger, "
-                                "active high", gsi);
-                triggering = ACPI_EDGE_SENSITIVE;
-                polarity = ACPI_ACTIVE_HIGH;
+        /*
+         * in IO-APIC mode, use overrided attribute. Two reasons:
+         * 1. BIOS bug in DSDT
+         * 2. BIOS uses IO-APIC mode Interrupt Source Override
+         */
+        if (!acpi_get_override_irq(gsi, &t, &p)) {
+                t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
+                p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
+
+                if (triggering != t || polarity != p) {
+                        pnp_warn("IRQ %d override to %s, %s",
+                                gsi, t ? "edge":"level", p ? "low":"high");
+                        triggering = t;
+                        polarity = p;
+                }
         }
-#endif
 
         res->irq_resource[i].flags = IORESOURCE_IRQ;    // Also clears _UNSET flag
         res->irq_resource[i].flags |= irq_flags(triggering, polarity);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 838f7ac0dc..6db31089d2 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -483,7 +483,7 @@ static DECLARE_WORK(css_reprobe_work, reprobe_all);
 void css_schedule_reprobe(void)
 {
         need_reprobe = 1;
-        queue_work(ccw_device_work, &css_reprobe_work);
+        queue_work(slow_path_wq, &css_reprobe_work);
 }
 
 EXPORT_SYMBOL_GPL(css_schedule_reprobe);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 8867443b80..bfad421cda 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -1034,7 +1034,7 @@ device_trigger_reprobe(struct subchannel *sch)
         if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
                 PREPARE_WORK(&cdev->private->kick_work,
                              ccw_device_move_to_orphanage);
-                queue_work(ccw_device_work, &cdev->private->kick_work);
+                queue_work(slow_path_wq, &cdev->private->kick_work);
         } else
                 ccw_device_start_id(cdev, 0);
 }
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index f232832f2b..2f6bf46242 100644
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -113,19 +113,10 @@ __ccw_device_sense_id_start(struct ccw_device *cdev)
 {
         struct subchannel *sch;
         struct ccw1 *ccw;
-        int ret;
 
         sch = to_subchannel(cdev->dev.parent);
         /* Setup sense channel program. */
         ccw = cdev->private->iccws;
-        if (sch->schib.pmcw.pim != 0x80) {
-                /* more than one path installed. */
-                ccw->cmd_code = CCW_CMD_SUSPEND_RECONN;
-                ccw->cda = 0;
-                ccw->count = 0;
-                ccw->flags = CCW_FLAG_SLI | CCW_FLAG_CC;
-                ccw++;
-        }
         ccw->cmd_code = CCW_CMD_SENSE_ID;
         ccw->cda = (__u32) __pa (&cdev->private->senseid);
         ccw->count = sizeof (struct senseid);
@@ -133,25 +124,9 @@ __ccw_device_sense_id_start(struct ccw_device *cdev)
 
         /* Reset device status. */
         memset(&cdev->private->irb, 0, sizeof(struct irb));
+        cdev->private->flags.intretry = 0;
 
-        /* Try on every path. */
-        ret = -ENODEV;
-        while (cdev->private->imask != 0) {
-                if ((sch->opm & cdev->private->imask) != 0 &&
-                    cdev->private->iretry > 0) {
-                        cdev->private->iretry--;
-                        /* Reset internal retry indication. */
-                        cdev->private->flags.intretry = 0;
-                        ret = cio_start (sch, cdev->private->iccws,
-                                         cdev->private->imask);
-                        /* ret is 0, -EBUSY, -EACCES or -ENODEV */
-                        if (ret != -EACCES)
-                                return ret;
-                }
-                cdev->private->imask >>= 1;
-                cdev->private->iretry = 5;
-        }
-        return ret;
+        return cio_start(sch, ccw, LPM_ANYPATH);
 }
 
 void
@@ -161,8 +136,7 @@ ccw_device_sense_id_start(struct ccw_device *cdev)
 
         memset (&cdev->private->senseid, 0, sizeof (struct senseid));
         cdev->private->senseid.cu_type = 0xFFFF;
-        cdev->private->imask = 0x80;
-        cdev->private->iretry = 5;
+        cdev->private->iretry = 3;
         ret = __ccw_device_sense_id_start(cdev);
         if (ret && ret != -EBUSY)
                 ccw_device_sense_id_done(cdev, ret);
@@ -278,14 +252,13 @@ ccw_device_sense_id_irq(struct ccw_device *cdev, enum dev_event dev_event)
                 ccw_device_sense_id_done(cdev, ret);
                 break;
         case -EACCES:           /* channel is not operational. */
-                sch->lpm &= ~cdev->private->imask;
-                cdev->private->imask >>= 1;
-                cdev->private->iretry = 5;
-                /* fall through. */
         case -EAGAIN:           /* try again. */
-                ret = __ccw_device_sense_id_start(cdev);
-                if (ret == 0 || ret == -EBUSY)
-                        break;
+                cdev->private->iretry--;
+                if (cdev->private->iretry > 0) {
+                        ret = __ccw_device_sense_id_start(cdev);
+                        if (ret == 0 || ret == -EBUSY)
+                                break;
+                }
                 /* fall through. */
         default:                /* Sense ID failed. Try asking VM. */
                 if (MACHINE_IS_VM) {
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 15d7787dea..69d7ea02cd 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -96,10 +96,23 @@ static int virtio_dev_probe(struct device *_d)
         return err;
 }
 
+static int virtio_dev_remove(struct device *_d)
+{
+        struct virtio_device *dev = container_of(_d,struct virtio_device,dev);
+        struct virtio_driver *drv = container_of(dev->dev.driver,
+                                                 struct virtio_driver, driver);
+
+        dev->config->set_status(dev, dev->config->get_status(dev)
+                                & ~VIRTIO_CONFIG_S_DRIVER);
+        drv->remove(dev);
+        return 0;
+}
+
 int register_virtio_driver(struct virtio_driver *driver)
 {
         driver->driver.bus = &virtio_bus;
         driver->driver.probe = virtio_dev_probe;
+        driver->driver.remove = virtio_dev_remove;
         return driver_register(&driver->driver);
 }
 EXPORT_SYMBOL_GPL(register_virtio_driver);
diff --git a/drivers/zorro/zorro-driver.c b/drivers/zorro/zorro-driver.c
index 067c07be92..e6c4390d8b 100644
--- a/drivers/zorro/zorro-driver.c
+++ b/drivers/zorro/zorro-driver.c
@@ -60,6 +60,20 @@ static int zorro_device_probe(struct device *dev)
 }
 
 
+static int zorro_device_remove(struct device *dev)
+{
+        struct zorro_dev *z = to_zorro_dev(dev);
+        struct zorro_driver *drv = to_zorro_driver(dev->driver);
+
+        if (drv) {
+                if (drv->remove)
+                        drv->remove(z);
+                z->driver = NULL;
+        }
+        return 0;
+}
+
+
     /**
      *  zorro_register_driver - register a new Zorro driver
      *  @drv: the driver structure to register
@@ -128,6 +142,7 @@ struct bus_type zorro_bus_type = {
         .name   = "zorro",
         .match  = zorro_bus_match,
         .probe  = zorro_device_probe,
+        .remove = zorro_device_remove,
 };
 
 
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 26d79f6db8..76411b1fc4 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -78,7 +78,6 @@ struct acpi_processor_cx {
 struct acpi_processor_power {
         struct cpuidle_device dev;
         struct acpi_processor_cx *state;
-        struct acpi_processor_cx *bm_state;
         unsigned long bm_check_timestamp;
         u32 default_state;
         u32 bm_activity;
diff --git a/include/asm-mips/8253pit.h b/include/asm-mips/8253pit.h
deleted file mode 100644
index 285f78488c..0000000000
--- a/include/asm-mips/8253pit.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * 8253/8254 Programmable Interval Timer
- */
-
-#ifndef _8253PIT_H
-#define _8253PIT_H
-
-#define PIT_TICK_RATE   1193182UL
-
-#endif
diff --git a/include/asm-mips/dma.h b/include/asm-mips/dma.h
index 833437d31e..d6a6c21f16 100644
--- a/include/asm-mips/dma.h
+++ b/include/asm-mips/dma.h
@@ -92,6 +92,7 @@
 #define MAX_DMA_ADDRESS         (PAGE_OFFSET + 0x01000000)
 #endif
 #define MAX_DMA_PFN             PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
+#define MAX_DMA32_PFN           (1UL << (32 - PAGE_SHIFT))
 
 /* 8237 DMA controllers */
 #define IO_DMA1_BASE    0x00    /* 8 bit slave DMA, channels 0..3 */
diff --git a/include/asm-mips/futex.h b/include/asm-mips/futex.h
index 3e7e30d4f4..17f082cfea 100644
--- a/include/asm-mips/futex.h
+++ b/include/asm-mips/futex.h
@@ -35,7 +35,7 @@
                 "       .set    mips0                           \n"     \
                 "       .section .fixup,\"ax\"                  \n"     \
                 "4:     li      %0, %6                          \n"     \
-                "       j       2b                              \n"     \
+                "       j       3b                              \n"     \
                 "       .previous                               \n"     \
                 "       .section __ex_table,\"a\"               \n"     \
                 "       "__UA_ADDR "\t1b, 4b                    \n"     \
@@ -61,7 +61,7 @@
                 "       .set    mips0                           \n"     \
                 "       .section .fixup,\"ax\"                  \n"     \
                 "4:     li      %0, %6                          \n"     \
-                "       j       2b                              \n"     \
+                "       j       3b                              \n"     \
                 "       .previous                               \n"     \
                 "       .section __ex_table,\"a\"               \n"     \
                 "       "__UA_ADDR "\t1b, 4b                    \n"     \
@@ -200,4 +200,4 @@ futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 }
 
 #endif
-#endif
+#endif /* _ASM_FUTEX_H */
diff --git a/include/asm-mips/i8253.h b/include/asm-mips/i8253.h
index 032ca73f18..5dabc870b3 100644
--- a/include/asm-mips/i8253.h
+++ b/include/asm-mips/i8253.h
@@ -12,6 +12,8 @@
 #define PIT_CH0                 0x40
 #define PIT_CH2                 0x42
 
+#define PIT_TICK_RATE           1193182UL
+
 extern spinlock_t i8253_lock;
 
 extern void setup_pit_timer(void);
diff --git a/include/asm-mips/ip32/ip32_ints.h b/include/asm-mips/ip32/ip32_ints.h
index ab5612f90f..85bc5302bc 100644
--- a/include/asm-mips/ip32/ip32_ints.h
+++ b/include/asm-mips/ip32/ip32_ints.h
@@ -22,7 +22,7 @@ enum ip32_irq_no {
          * CPU interrupts are 0 ... 7
          */
 
-        CRIME_IRQ_BASE                  = MIPS_CPU_IRQ_BASE,
+        CRIME_IRQ_BASE                  = MIPS_CPU_IRQ_BASE + 8,
 
         /*
          * MACE
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index 90e4b403f5..1030562d6e 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -68,11 +68,15 @@ do {									\
         if (cpu_has_dsp)                                                \
                 __save_dsp(prev);                                       \
         (last) = resume(prev, next, task_thread_info(next));            \
+} while (0)
+
+#define finish_arch_switch(prev)                                        \
+do {                                                                    \
         if (cpu_has_dsp)                                                \
                 __restore_dsp(current);                                 \
         if (cpu_has_userlocal)                                          \
-                write_c0_userlocal(task_thread_info(current)->tp_value);\
-} while(0)
+                write_c0_userlocal(current_thread_info()->tp_value);    \
+} while (0)
 
 static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
 {
diff --git a/include/asm-mips/time.h b/include/asm-mips/time.h
index ee1663e64d..7717934f94 100644
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -58,10 +58,22 @@ extern int (*perf_irq)(void);
  * Initialize the calling CPU's compare interrupt as clockevent device
  */
 #ifdef CONFIG_CEVT_R4K
-extern void mips_clockevent_init(void);
+extern int mips_clockevent_init(void);
 extern unsigned int __weak get_c0_compare_int(void);
 #else
-static inline void mips_clockevent_init(void)
+static inline int mips_clockevent_init(void)
+{
+        return -ENXIO;
+}
+#endif
+
+/*
+ * Initialize the count register as a clocksource
+ */
+#ifdef CONFIG_CEVT_R4K
+extern void init_mips_clocksource(void);
+#else
+static inline void init_mips_clocksource(void)
 {
 }
 #endif
diff --git a/include/asm-powerpc/page_32.h b/include/asm-powerpc/page_32.h
index 374d0db37e..17110aff26 100644
--- a/include/asm-powerpc/page_32.h
+++ b/include/asm-powerpc/page_32.h
@@ -6,6 +6,10 @@
 
 #define PPC_MEMSTART    0
 
+#ifdef CONFIG_NOT_COHERENT_CACHE
+#define ARCH_KMALLOC_MINALIGN   L1_CACHE_BYTES
+#endif
+
 #ifndef __ASSEMBLY__
 /*
  * The basic type of a PTE - 64 bits for those CPUs with > 32 bit
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index dc318458b5..d8bdc79db1 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -246,7 +246,6 @@ static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
         return PCI_DN(busdn)->phb;
 }
 
-extern void pcibios_free_controller(struct pci_controller *phb);
 
 extern void isa_bridge_find_early(struct pci_controller *hose);
 
@@ -282,9 +281,11 @@ extern void
 pci_process_bridge_OF_ranges(struct pci_controller *hose,
                            struct device_node *dev, int primary);
 
-/* Allocate a new PCI host bridge structure */
+/* Allocate & free a PCI host bridge structure */
 extern struct pci_controller *
 pcibios_alloc_controller(struct device_node *dev);
+extern void pcibios_free_controller(struct pci_controller *phb);
+
 #ifdef CONFIG_PCI
 extern unsigned long pci_address_to_pio(phys_addr_t address);
 extern int pcibios_vaddr_is_ioport(void __iomem *address);
diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h
index 8eaa7b28d9..87db8728e8 100644
--- a/include/asm-powerpc/rtas.h
+++ b/include/asm-powerpc/rtas.h
@@ -164,7 +164,8 @@ extern int rtas_call(int token, int, int, int *, ...);
 extern void rtas_restart(char *cmd);
 extern void rtas_power_off(void);
 extern void rtas_halt(void);
-extern void rtas_os_term(char *str);
+extern void rtas_panic_msg(char *str);
+extern void rtas_os_term(void);
 extern int rtas_get_sensor(int sensor, int index, int *state);
 extern int rtas_get_power_level(int powerdomain, int *level);
 extern int rtas_set_power_level(int powerdomain, int level, int *setlevel);
diff --git a/include/asm-powerpc/vdso_datapage.h b/include/asm-powerpc/vdso_datapage.h
index 8a94f0eba5..f01393224b 100644
--- a/include/asm-powerpc/vdso_datapage.h
+++ b/include/asm-powerpc/vdso_datapage.h
@@ -77,6 +77,10 @@ struct vdso_data {
         /* those additional ones don't have to be located anywhere
          * special as they were not part of the original systemcfg
          */
+        __u32 dcache_block_size;                /* L1 d-cache block size     */
+        __u32 icache_block_size;                /* L1 i-cache block size     */
+        __u32 dcache_log_block_size;            /* L1 d-cache log block size */
+        __u32 icache_log_block_size;            /* L1 i-cache log block size */
         __s32 wtom_clock_sec;                   /* Wall to monotonic clock */
         __s32 wtom_clock_nsec;
         __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls  */
@@ -99,6 +103,10 @@ struct vdso_data {
         __s32 wtom_clock_sec;                   /* Wall to monotonic clock */
         __s32 wtom_clock_nsec;
         __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+        __u32 dcache_block_size;        /* L1 d-cache block size     */
+        __u32 icache_block_size;        /* L1 i-cache block size     */
+        __u32 dcache_log_block_size;    /* L1 d-cache log block size */
+        __u32 icache_log_block_size;    /* L1 i-cache log block size */
 };
 
 #endif /* CONFIG_PPC64 */
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index d866d33855..44bda786ee 100644
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -388,6 +388,11 @@ extern void (*_machine_power_off)(void);
 
 #define arch_align_stack(x) (x)
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+extern psw_t sysc_restore_trace_psw;
+extern psw_t io_restore_trace_psw;
+#endif
+
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8ccedf7a0a..e3c16c981e 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -132,6 +132,11 @@ extern unsigned long acpi_realmode_flags;
 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 
+#ifdef CONFIG_X86_IO_APIC
+extern int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity);
+#else
+#define acpi_get_override_irq(bus, trigger, polarity) (-1)
+#endif
 /*
  * This function undoes the effect of one call to acpi_register_gsi().
  * If this matches the last registration, any IRQ resources for gsi
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 16a51546db..c4e00161a2 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -92,6 +92,7 @@ struct cpuidle_device {
         struct kobject          kobj;
         struct completion       kobj_unregister;
         void                    *governor_data;
+        struct cpuidle_state    *safe_state;
 };
 
 DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index e99171f01b..4f5047df8a 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -70,7 +70,6 @@ enum
         CTL_ABI=9,              /* Binary emulation */
         CTL_CPU=10,             /* CPU stuff (speed scaling, etc) */
         CTL_ARLAN=254,          /* arlan wireless driver */
-        CTL_APPLDATA=2120,      /* s390 appldata */
         CTL_S390DBF=5677,       /* s390 debug */
         CTL_SUNRPC=7249,        /* sunrpc debug */
         CTL_PM=9899,            /* frv power management */
@@ -207,11 +206,6 @@ enum
         VM_PANIC_ON_OOM=33,     /* panic at out-of-memory */
         VM_VDSO_ENABLED=34,     /* map VDSO into new processes? */
         VM_MIN_SLAB=35,          /* Percent pages ignored by zone reclaim */
-
-        /* s390 vm cmm sysctls */
-        VM_CMM_PAGES=1111,
-        VM_CMM_TIMED_PAGES=1112,
-        VM_CMM_TIMEOUT=1113,
 };
 
 
diff --git a/include/sound/version.h b/include/sound/version.h
index a2be8ad889..a9781eb0da 100644
--- a/include/sound/version.h
+++ b/include/sound/version.h
@@ -1,3 +1,3 @@
 /* include/version.h.  Generated by alsa/ksync script.  */
 #define CONFIG_SND_VERSION "1.0.15"
-#define CONFIG_SND_DATE " (Tue Oct 23 06:09:18 2007 UTC)"
+#define CONFIG_SND_DATE " (Tue Nov 20 19:16:42 2007 UTC)"
diff --git a/kernel/module.c b/kernel/module.c
index 3202c99500..91fe6958b6 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -81,7 +81,8 @@ int unregister_module_notifier(struct notifier_block * nb)
 }
 EXPORT_SYMBOL(unregister_module_notifier);
 
-/* We require a truly strong try_module_get() */
+/* We require a truly strong try_module_get(): 0 means failure due to
+   ongoing or failed initialization etc. */
 static inline int strong_try_module_get(struct module *mod)
 {
         if (mod && mod->state == MODULE_STATE_COMING)
@@ -952,7 +953,8 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
         ret = __find_symbol(name, &owner, &crc,
                         !(mod->taints & TAINT_PROPRIETARY_MODULE));
         if (ret) {
-                /* use_module can fail due to OOM, or module unloading */
+                /* use_module can fail due to OOM,
+                   or module initialization or unloading */
                 if (!check_version(sechdrs, versindex, name, mod, crc) ||
                     !use_module(mod, owner))
                         ret = 0;
@@ -1369,7 +1371,7 @@ dup:
         return ret;
 }
 
-/* Change all symbols so that sh_value encodes the pointer directly. */
+/* Change all symbols so that st_value encodes the pointer directly. */
 static int simplify_symbols(Elf_Shdr *sechdrs,
                             unsigned int symindex,
                             const char *strtab,
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 4abc6d2306..8f5baac1eb 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -140,9 +140,6 @@ static struct trans_ctl_table trans_vm_table[] = {
         { VM_PANIC_ON_OOM,              "panic_on_oom" },
         { VM_VDSO_ENABLED,              "vdso_enabled" },
         { VM_MIN_SLAB,                  "min_slab_ratio" },
-        { VM_CMM_PAGES,                 "cmm_pages" },
-        { VM_CMM_TIMED_PAGES,           "cmm_timed_pages" },
-        { VM_CMM_TIMEOUT,               "cmm_timeout" },
 
         {}
 };
@@ -1219,16 +1216,6 @@ static struct trans_ctl_table trans_arlan_table[] = {
         {}
 };
 
-static struct trans_ctl_table trans_appldata_table[] = {
-        { CTL_APPLDATA_TIMER,           "timer" },
-        { CTL_APPLDATA_INTERVAL,        "interval" },
-        { CTL_APPLDATA_OS,              "os" },
-        { CTL_APPLDATA_NET_SUM,         "net_sum" },
-        { CTL_APPLDATA_MEM,             "mem" },
-        {}
-
-};
-
 static struct trans_ctl_table trans_s390dbf_table[] = {
         { 5678 /* CTL_S390DBF_STOPPABLE */,     "debug_stoppable" },
         { 5679 /* CTL_S390DBF_ACTIVE */,        "debug_active" },
@@ -1273,7 +1260,6 @@ static struct trans_ctl_table trans_root_table[] = {
         { CTL_ABI,      "abi" },
         /* CTL_CPU not used */
         { CTL_ARLAN,    "arlan",        trans_arlan_table },
-        { CTL_APPLDATA, "appldata",     trans_appldata_table },
         { CTL_S390DBF,  "s390dbf",      trans_s390dbf_table },
         { CTL_SUNRPC,   "sunrpc",       trans_sunrpc_table },
         { CTL_PM,       "pm",           trans_pm_table },
diff --git a/mm/rmap.c b/mm/rmap.c
index dc3be5f5b0..dbc2ca2057 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -471,11 +471,12 @@ int page_mkclean(struct page *page)
 
         if (page_mapped(page)) {
                 struct address_space *mapping = page_mapping(page);
-                if (mapping)
+                if (mapping) {
                         ret = page_mkclean_file(mapping, page);
-                if (page_test_dirty(page)) {
-                        page_clear_dirty(page);
-                        ret = 1;
+                        if (page_test_dirty(page)) {
+                                page_clear_dirty(page);
+                                ret = 1;
+                        }
                 }
         }
 
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index a2f5a6ea38..7698f6c459 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -97,7 +97,7 @@ struct iucv_irq_list {
         struct iucv_irq_data data;
 };
 
-static struct iucv_irq_data *iucv_irq_data;
+static struct iucv_irq_data *iucv_irq_data[NR_CPUS];
 static cpumask_t iucv_buffer_cpumask = CPU_MASK_NONE;
 static cpumask_t iucv_irq_cpumask = CPU_MASK_NONE;
 
@@ -277,7 +277,7 @@ union iucv_param {
 /*
  * Anchor for per-cpu IUCV command parameter block.
  */
-static union iucv_param *iucv_param;
+static union iucv_param *iucv_param[NR_CPUS];
 
 /**
  * iucv_call_b2f0
@@ -356,7 +356,7 @@ static void iucv_allow_cpu(void *data)
          *      0x10 - Flag to allow priority message completion interrupts
          *      0x08 - Flag to allow IUCV control interrupts
          */
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[cpu];
         memset(parm, 0, sizeof(union iucv_param));
         parm->set_mask.ipmask = 0xf8;
         iucv_call_b2f0(IUCV_SETMASK, parm);
@@ -377,7 +377,7 @@ static void iucv_block_cpu(void *data)
         union iucv_param *parm;
 
         /* Disable all iucv interrupts. */
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[cpu];
         memset(parm, 0, sizeof(union iucv_param));
         iucv_call_b2f0(IUCV_SETMASK, parm);
 
@@ -401,9 +401,9 @@ static void iucv_declare_cpu(void *data)
                 return;
 
         /* Declare interrupt buffer. */
-        parm = percpu_ptr(iucv_param, cpu);
+        parm = iucv_param[cpu];
         memset(parm, 0, sizeof(union iucv_param));
-        parm->db.ipbfadr1 = virt_to_phys(percpu_ptr(iucv_irq_data, cpu));
+        parm->db.ipbfadr1 = virt_to_phys(iucv_irq_data[cpu]);
         rc = iucv_call_b2f0(IUCV_DECLARE_BUFFER, parm);
         if (rc) {
                 char *err = "Unknown";
@@ -458,7 +458,7 @@ static void iucv_retrieve_cpu(void *data)
         iucv_block_cpu(NULL);
 
         /* Retrieve interrupt buffer. */
-        parm = percpu_ptr(iucv_param, cpu);
+        parm = iucv_param[cpu];
         iucv_call_b2f0(IUCV_RETRIEVE_BUFFER, parm);
 
         /* Clear indication that an iucv buffer exists for this cpu. */
@@ -558,22 +558,23 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
         switch (action) {
         case CPU_UP_PREPARE:
         case CPU_UP_PREPARE_FROZEN:
-                if (!percpu_populate(iucv_irq_data,
-                                     sizeof(struct iucv_irq_data),
-                                     GFP_KERNEL|GFP_DMA, cpu))
+                iucv_irq_data[cpu] = kmalloc_node(sizeof(struct iucv_irq_data),
+                                        GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+                if (!iucv_irq_data[cpu])
                         return NOTIFY_BAD;
-                if (!percpu_populate(iucv_param, sizeof(union iucv_param),
-                                     GFP_KERNEL|GFP_DMA, cpu)) {
-                        percpu_depopulate(iucv_irq_data, cpu);
+                iucv_param[cpu] = kmalloc_node(sizeof(union iucv_param),
+                                     GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+                if (!iucv_param[cpu])
                         return NOTIFY_BAD;
-                }
                 break;
         case CPU_UP_CANCELED:
         case CPU_UP_CANCELED_FROZEN:
         case CPU_DEAD:
         case CPU_DEAD_FROZEN:
-                percpu_depopulate(iucv_param, cpu);
-                percpu_depopulate(iucv_irq_data, cpu);
+                kfree(iucv_param[cpu]);
+                iucv_param[cpu] = NULL;
+                kfree(iucv_irq_data[cpu]);
+                iucv_irq_data[cpu] = NULL;
                 break;
         case CPU_ONLINE:
         case CPU_ONLINE_FROZEN:
@@ -612,7 +613,7 @@ static int iucv_sever_pathid(u16 pathid, u8 userdata[16])
 {
         union iucv_param *parm;
 
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (userdata)
                 memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
@@ -755,7 +756,7 @@ int iucv_path_accept(struct iucv_path *path, struct iucv_handler *handler,
 
         local_bh_disable();
         /* Prepare parameter block. */
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         parm->ctrl.ippathid = path->pathid;
         parm->ctrl.ipmsglim = path->msglim;
@@ -799,7 +800,7 @@ int iucv_path_connect(struct iucv_path *path, struct iucv_handler *handler,
         BUG_ON(in_atomic());
         spin_lock_bh(&iucv_table_lock);
         iucv_cleanup_queue();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         parm->ctrl.ipmsglim = path->msglim;
         parm->ctrl.ipflags1 = path->flags;
@@ -854,7 +855,7 @@ int iucv_path_quiesce(struct iucv_path *path, u8 userdata[16])
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (userdata)
                 memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
@@ -881,7 +882,7 @@ int iucv_path_resume(struct iucv_path *path, u8 userdata[16])
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (userdata)
                 memcpy(parm->ctrl.ipuser, userdata, sizeof(parm->ctrl.ipuser));
@@ -936,7 +937,7 @@ int iucv_message_purge(struct iucv_path *path, struct iucv_message *msg,
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         parm->purge.ippathid = path->pathid;
         parm->purge.ipmsgid = msg->id;
@@ -1003,7 +1004,7 @@ int iucv_message_receive(struct iucv_path *path, struct iucv_message *msg,
         }
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         parm->db.ipbfadr1 = (u32)(addr_t) buffer;
         parm->db.ipbfln1f = (u32) size;
@@ -1040,7 +1041,7 @@ int iucv_message_reject(struct iucv_path *path, struct iucv_message *msg)
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         parm->db.ippathid = path->pathid;
         parm->db.ipmsgid = msg->id;
@@ -1074,7 +1075,7 @@ int iucv_message_reply(struct iucv_path *path, struct iucv_message *msg,
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (flags & IUCV_IPRMDATA) {
                 parm->dpl.ippathid = path->pathid;
@@ -1118,7 +1119,7 @@ int iucv_message_send(struct iucv_path *path, struct iucv_message *msg,
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (flags & IUCV_IPRMDATA) {
                 /* Message of 8 bytes can be placed into the parameter list. */
@@ -1172,7 +1173,7 @@ int iucv_message_send2way(struct iucv_path *path, struct iucv_message *msg,
         int rc;
 
         local_bh_disable();
-        parm = percpu_ptr(iucv_param, smp_processor_id());
+        parm = iucv_param[smp_processor_id()];
         memset(parm, 0, sizeof(union iucv_param));
         if (flags & IUCV_IPRMDATA) {
                 parm->dpl.ippathid = path->pathid;
@@ -1559,7 +1560,7 @@ static void iucv_external_interrupt(u16 code)
         struct iucv_irq_data *p;
         struct iucv_irq_list *work;
 
-        p = percpu_ptr(iucv_irq_data, smp_processor_id());
+        p = iucv_irq_data[smp_processor_id()];
         if (p->ippathid >= iucv_max_pathid) {
                 printk(KERN_WARNING "iucv_do_int: Got interrupt with "
                        "pathid %d > max_connections (%ld)\n",
@@ -1598,6 +1599,7 @@ static void iucv_external_interrupt(u16 code)
 static int __init iucv_init(void)
 {
         int rc;
+        int cpu;
 
         if (!MACHINE_IS_VM) {
                 rc = -EPROTONOSUPPORT;
@@ -1617,19 +1619,23 @@ static int __init iucv_init(void)
                 rc = PTR_ERR(iucv_root);
                 goto out_bus;
         }
-        /* Note: GFP_DMA used to get memory below 2G */
-        iucv_irq_data = percpu_alloc(sizeof(struct iucv_irq_data),
-                                     GFP_KERNEL|GFP_DMA);
-        if (!iucv_irq_data) {
-                rc = -ENOMEM;
-                goto out_root;
-        }
-        /* Allocate parameter blocks. */
-        iucv_param = percpu_alloc(sizeof(union iucv_param),
-                                  GFP_KERNEL|GFP_DMA);
-        if (!iucv_param) {
-                rc = -ENOMEM;
-                goto out_extint;
+
+        for_each_online_cpu(cpu) {
+                /* Note: GFP_DMA used to get memory below 2G */
+                iucv_irq_data[cpu] = kmalloc_node(sizeof(struct iucv_irq_data),
+                                     GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+                if (!iucv_irq_data[cpu]) {
+                        rc = -ENOMEM;
+                        goto out_free;
+                }
+
+                /* Allocate parameter blocks. */
+                iucv_param[cpu] = kmalloc_node(sizeof(union iucv_param),
+                                  GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
+                if (!iucv_param[cpu]) {
+                        rc = -ENOMEM;
+                        goto out_free;
+                }
         }
         register_hotcpu_notifier(&iucv_cpu_notifier);
         ASCEBC(iucv_error_no_listener, 16);
@@ -1638,9 +1644,13 @@ static int __init iucv_init(void)
         iucv_available = 1;
         return 0;
 
-out_extint:
-        percpu_free(iucv_irq_data);
-out_root:
+out_free:
+        for_each_possible_cpu(cpu) {
+                kfree(iucv_param[cpu]);
+                iucv_param[cpu] = NULL;
+                kfree(iucv_irq_data[cpu]);
+                iucv_irq_data[cpu] = NULL;
+        }
         s390_root_dev_unregister(iucv_root);
 out_bus:
         bus_unregister(&iucv_bus);
@@ -1658,6 +1668,7 @@ out:
 static void __exit iucv_exit(void)
 {
         struct iucv_irq_list *p, *n;
+        int cpu;
 
         spin_lock_irq(&iucv_queue_lock);
         list_for_each_entry_safe(p, n, &iucv_task_queue, list)
@@ -1666,8 +1677,12 @@ static void __exit iucv_exit(void)
                 kfree(p);
         spin_unlock_irq(&iucv_queue_lock);
         unregister_hotcpu_notifier(&iucv_cpu_notifier);
-        percpu_free(iucv_param);
-        percpu_free(iucv_irq_data);
+        for_each_possible_cpu(cpu) {
+                kfree(iucv_param[cpu]);
+                iucv_param[cpu] = NULL;
+                kfree(iucv_irq_data[cpu]);
+                iucv_irq_data[cpu] = NULL;
+        }
         s390_root_dev_unregister(iucv_root);
         bus_unregister(&iucv_bus);
         unregister_external_interrupt(0x4000, iucv_external_interrupt);
diff --git a/sound/drivers/mpu401/mpu401_uart.c b/sound/drivers/mpu401/mpu401_uart.c
index 3306ecd492..b57f2d5a1c 100644
--- a/sound/drivers/mpu401/mpu401_uart.c
+++ b/sound/drivers/mpu401/mpu401_uart.c
@@ -97,23 +97,27 @@ static void snd_mpu401_uart_clear_rx(struct snd_mpu401 *mpu)
 
 static void uart_interrupt_tx(struct snd_mpu401 *mpu)
 {
+        unsigned long flags;
+
         if (test_bit(MPU401_MODE_BIT_OUTPUT, &mpu->mode) &&
             test_bit(MPU401_MODE_BIT_OUTPUT_TRIGGER, &mpu->mode)) {
-                spin_lock(&mpu->output_lock);
+                spin_lock_irqsave(&mpu->output_lock, flags);
                 snd_mpu401_uart_output_write(mpu);
-                spin_unlock(&mpu->output_lock);
+                spin_unlock_irqrestore(&mpu->output_lock, flags);
         }
 }
 
 static void _snd_mpu401_uart_interrupt(struct snd_mpu401 *mpu)
 {
+        unsigned long flags;
+
         if (mpu->info_flags & MPU401_INFO_INPUT) {
-                spin_lock(&mpu->input_lock);
+                spin_lock_irqsave(&mpu->input_lock, flags);
                 if (test_bit(MPU401_MODE_BIT_INPUT, &mpu->mode))
                         snd_mpu401_uart_input_read(mpu);
                 else
                         snd_mpu401_uart_clear_rx(mpu);
-                spin_unlock(&mpu->input_lock);
+                spin_unlock_irqrestore(&mpu->input_lock, flags);
         }
         if (! (mpu->info_flags & MPU401_INFO_TX_IRQ))
                 /* ok. for better Tx performance try do some output
diff --git a/sound/drivers/portman2x4.c b/sound/drivers/portman2x4.c
index e065b2a644..1b832870cc 100644
--- a/sound/drivers/portman2x4.c
+++ b/sound/drivers/portman2x4.c
@@ -668,7 +668,7 @@ static int __devinit snd_portman_probe_port(struct parport *p)
         parport_release(pardev);
         parport_unregister_device(pardev);
 
-        return res;
+        return res ? -EIO : 0;
 }
 
 static void __devinit snd_portman_attach(struct parport *p)
diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index be519a17df..3f9b5c5600 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -86,7 +86,7 @@ static int snd_ca0106_shared_spdif_get(struct snd_kcontrol *kcontrol,
 {
         struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
 
-        ucontrol->value.enumerated.item[0] = emu->spdif_enable;
+        ucontrol->value.integer.value[0] = emu->spdif_enable;
         return 0;
 }
 
@@ -98,11 +98,11 @@ static int snd_ca0106_shared_spdif_put(struct snd_kcontrol *kcontrol,
         int change = 0;
         u32 mask;
 
-        val = ucontrol->value.enumerated.item[0] ;
+        val = !!ucontrol->value.integer.value[0];
         change = (emu->spdif_enable != val);
         if (change) {
                 emu->spdif_enable = val;
-                if (val == 1) {
+                if (val) {
                         /* Digital */
                         snd_ca0106_ptr_write(emu, SPDIF_SELECT1, 0, 0xf);
                         snd_ca0106_ptr_write(emu, SPDIF_SELECT2, 0, 0x0b000000);
@@ -159,6 +159,8 @@ static int snd_ca0106_capture_source_put(struct snd_kcontrol *kcontrol,
         u32 source;
 
         val = ucontrol->value.enumerated.item[0] ;
+        if (val >= 6)
+                return -EINVAL;
         change = (emu->capture_source != val);
         if (change) {
                 emu->capture_source = val;
@@ -207,6 +209,8 @@ static int snd_ca0106_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
          * for the particular source.
          */
         source_id = ucontrol->value.enumerated.item[0] ;
+        if (source_id >= 4)
+                return -EINVAL;
         change = (emu->i2c_capture_source != source_id);
         if (change) {
                 snd_ca0106_i2c_write(emu, ADC_MUX, 0); /* Mute input */
@@ -271,6 +275,8 @@ static int snd_ca0106_capture_mic_line_in_put(struct snd_kcontrol *kcontrol,
         u32 tmp;
 
         val = ucontrol->value.enumerated.item[0] ;
+        if (val > 1)
+                return -EINVAL;
         change = (emu->capture_mic_line_in != val);
         if (change) {
                 emu->capture_mic_line_in = val;
@@ -443,7 +449,7 @@ static int snd_ca0106_i2c_volume_put(struct snd_kcontrol *kcontrol,
         ogain = emu->i2c_capture_volume[source_id][0]; /* Left */
         ngain = ucontrol->value.integer.value[0];
         if (ngain > 0xff)
-                return 0;
+                return -EINVAL;
         if (ogain != ngain) {
                 if (emu->i2c_capture_source == source_id)
                         snd_ca0106_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff) );
@@ -453,7 +459,7 @@ static int snd_ca0106_i2c_volume_put(struct snd_kcontrol *kcontrol,
         ogain = emu->i2c_capture_volume[source_id][1]; /* Right */
         ngain = ucontrol->value.integer.value[1];
         if (ngain > 0xff)
-                return 0;
+                return -EINVAL;
         if (ogain != ngain) {
                 if (emu->i2c_capture_source == source_id)
                         snd_ca0106_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
@@ -497,7 +503,7 @@ static int spi_mute_put(struct snd_kcontrol *kcontrol,
         }
 
         ret = snd_ca0106_spi_write(emu, emu->spi_dac_reg[reg]);
-        return ret ? -1 : 1;
+        return ret ? -EINVAL : 1;
 }
 
 #define CA_VOLUME(xname,chid,reg) \
diff --git a/sound/pci/ca0106/ca0106_proc.c b/sound/pci/ca0106/ca0106_proc.c
index ae80f51d8c..61f2718ae3 100644
--- a/sound/pci/ca0106/ca0106_proc.c
+++ b/sound/pci/ca0106/ca0106_proc.c
@@ -445,13 +445,11 @@ int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
                 entry->c.text.write = snd_ca0106_proc_reg_write;
                 entry->mode |= S_IWUSR;
-//              entry->private_data = emu;
         }
         if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
-                snd_info_set_text_ops(entry, emu, snd_ca0106_proc_i2c_write);
                 entry->c.text.write = snd_ca0106_proc_i2c_write;
+                entry->private_data = emu;
                 entry->mode |= S_IWUSR;
-//              entry->private_data = emu;
         }
         if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry)) 
                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 6832649879..1fa5f004e8 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -246,10 +246,9 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address.");
 #define CM_MMODE_MASK           0x00000E00      /* model DAA interface mode */
 #define CM_SPDIF_SELECT2        0x00000100      /* for model > 039 ? */
 #define CM_ENCENTER             0x00000080
-#define CM_FLINKON              0x00000080      /* force modem link detection on, model 037 */
+#define CM_FLINKON              0x00000040      /* force modem link detection on, model 037 */
 #define CM_MUTECH1              0x00000040      /* mute PCI ch1 to DAC */
-#define CM_FLINKOFF             0x00000040      /* force modem link detection off, model 037 */
-#define CM_UNKNOWN_18_5         0x00000020      /* ? */
+#define CM_FLINKOFF             0x00000020      /* force modem link detection off, model 037 */
 #define CM_MIDSMP               0x00000010      /* 1/2 interpolation at front end DAC */
 #define CM_UPDDMA_MASK          0x0000000C      /* TDMA position update notification */
 #define CM_UPDDMA_2048          0x00000000
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index 54a2034d8e..ccacd7b890 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -58,6 +58,9 @@ static int snd_emu10k1_spdif_get(struct snd_kcontrol *kcontrol,
         unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
         unsigned long flags;
 
+        /* Limit: emu->spdif_bits */
+        if (idx >= 3)
+                return -EINVAL;
         spin_lock_irqsave(&emu->reg_lock, flags);
         ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff;
         ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff;
@@ -272,9 +275,12 @@ static int snd_emu1010_output_source_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
-        int channel;
+        unsigned int channel;
 
         channel = (kcontrol->private_value) & 0xff;
+        /* Limit: emu1010_output_dst, emu->emu1010.output_source */
+        if (channel >= 24)
+                return -EINVAL;
         ucontrol->value.enumerated.item[0] = emu->emu1010.output_source[channel];
         return 0;
 }
@@ -285,11 +291,17 @@ static int snd_emu1010_output_source_put(struct snd_kcontrol *kcontrol,
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
         int change = 0;
         unsigned int val;
-        int channel;
+        unsigned int channel;
 
+        val = ucontrol->value.enumerated.item[0];
+        if (val >= 53)
+                return -EINVAL;
         channel = (kcontrol->private_value) & 0xff;
-        if (emu->emu1010.output_source[channel] != ucontrol->value.enumerated.item[0]) {
-                val = emu->emu1010.output_source[channel] = ucontrol->value.enumerated.item[0];
+        /* Limit: emu1010_output_dst, emu->emu1010.output_source */
+        if (channel >= 24)
+                return -EINVAL;
+        if (emu->emu1010.output_source[channel] != val) {
+                emu->emu1010.output_source[channel] = val;
                 change = 1;
                 snd_emu1010_fpga_link_dst_src_write(emu,
                         emu1010_output_dst[channel], emu1010_src_regs[val]);
@@ -301,9 +313,12 @@ static int snd_emu1010_input_source_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
-        int channel;
+        unsigned int channel;
 
         channel = (kcontrol->private_value) & 0xff;
+        /* Limit: emu1010_input_dst, emu->emu1010.input_source */
+        if (channel >= 22)
+                return -EINVAL;
         ucontrol->value.enumerated.item[0] = emu->emu1010.input_source[channel];
         return 0;
 }
@@ -314,11 +329,17 @@ static int snd_emu1010_input_source_put(struct snd_kcontrol *kcontrol,
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
         int change = 0;
         unsigned int val;
-        int channel;
+        unsigned int channel;
 
+        val = ucontrol->value.enumerated.item[0];
+        if (val >= 53)
+                return -EINVAL;
         channel = (kcontrol->private_value) & 0xff;
-        if (emu->emu1010.input_source[channel] != ucontrol->value.enumerated.item[0]) {
-                val = emu->emu1010.input_source[channel] = ucontrol->value.enumerated.item[0];
+        /* Limit: emu1010_input_dst, emu->emu1010.input_source */
+        if (channel >= 22)
+                return -EINVAL;
+        if (emu->emu1010.input_source[channel] != val) {
+                emu->emu1010.input_source[channel] = val;
                 change = 1;
                 snd_emu1010_fpga_link_dst_src_write(emu,
                         emu1010_input_dst[channel], emu1010_src_regs[val]);
@@ -533,6 +554,9 @@ static int snd_emu1010_internal_clock_put(struct snd_kcontrol *kcontrol,
         int change = 0;
 
         val = ucontrol->value.enumerated.item[0] ;
+        /* Limit: uinfo->value.enumerated.items = 4; */
+        if (val >= 4)
+                return -EINVAL;
         change = (emu->emu1010.internal_clock != val);
         if (change) {
                 emu->emu1010.internal_clock = val;
@@ -669,7 +693,11 @@ static int snd_audigy_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
          * update the capture volume from the cached value
          * for the particular source.
          */
-        source_id = ucontrol->value.enumerated.item[0]; /* Use 2 and 3 */
+        source_id = ucontrol->value.enumerated.item[0];
+        /* Limit: uinfo->value.enumerated.items = 2; */
+        /*        emu->i2c_capture_volume */
+        if (source_id >= 2)
+                return -EINVAL;
         change = (emu->i2c_capture_source != source_id);
         if (change) {
                 snd_emu10k1_i2c_write(emu, ADC_MUX, 0); /* Mute input */
@@ -720,9 +748,13 @@ static int snd_audigy_i2c_volume_get(struct snd_kcontrol *kcontrol,
                                  struct snd_ctl_elem_value *ucontrol)
 {
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
-        int source_id;
+        unsigned int source_id;
 
         source_id = kcontrol->private_value;
+        /* Limit: emu->i2c_capture_volume */
+        /*        capture_source: uinfo->value.enumerated.items = 2 */
+        if (source_id >= 2)
+                return -EINVAL;
 
         ucontrol->value.integer.value[0] = emu->i2c_capture_volume[source_id][0];
         ucontrol->value.integer.value[1] = emu->i2c_capture_volume[source_id][1];
@@ -735,10 +767,14 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
         unsigned int ogain;
         unsigned int ngain;
-        int source_id;
+        unsigned int source_id;
         int change = 0;
 
         source_id = kcontrol->private_value;
+        /* Limit: emu->i2c_capture_volume */
+        /*        capture_source: uinfo->value.enumerated.items = 2 */
+        if (source_id >= 2)
+                return -EINVAL;
         ogain = emu->i2c_capture_volume[source_id][0]; /* Left */
         ngain = ucontrol->value.integer.value[0];
         if (ngain > 0xff)
@@ -746,7 +782,7 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
         if (ogain != ngain) {
                 if (emu->i2c_capture_source == source_id)
                         snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff) );
-                emu->i2c_capture_volume[source_id][0] = ucontrol->value.integer.value[0];
+                emu->i2c_capture_volume[source_id][0] = ngain;
                 change = 1;
         }
         ogain = emu->i2c_capture_volume[source_id][1]; /* Right */
@@ -756,7 +792,7 @@ static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
         if (ogain != ngain) {
                 if (emu->i2c_capture_source == source_id)
                         snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
-                emu->i2c_capture_volume[source_id][1] = ucontrol->value.integer.value[1];
+                emu->i2c_capture_volume[source_id][1] = ngain;
                 change = 1;
         }
 
@@ -877,6 +913,9 @@ static int snd_emu10k1_spdif_put(struct snd_kcontrol *kcontrol,
         unsigned int val;
         unsigned long flags;
 
+        /* Limit: emu->spdif_bits */
+        if (idx >= 3)
+                return -EINVAL;
         val = (ucontrol->value.iec958.status[0] << 0) |
               (ucontrol->value.iec958.status[1] << 8) |
               (ucontrol->value.iec958.status[2] << 16) |
diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index d619a3842c..9fd3135f31 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -742,6 +742,8 @@ static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
         u32 source;
 
         val = ucontrol->value.enumerated.item[0] ;
+        if (val > 7)
+                return -EINVAL;
         change = (emu->p16v_capture_source != val);
         if (change) {
                 emu->p16v_capture_source = val;
@@ -784,6 +786,8 @@ static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
         u32 tmp;
 
         val = ucontrol->value.enumerated.item[0] ;
+        if (val > 3)
+                return -EINVAL;
         change = (emu->p16v_capture_channel != val);
         if (change) {
                 emu->p16v_capture_channel = val;
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index ad4cb38109..8cbe3bf1e3 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1625,19 +1625,26 @@ static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
 
         nid = codec->start_nid;
         for (i = 0; i < codec->num_nodes; i++, nid++) {
-                if (get_wcaps(codec, nid) & AC_WCAP_POWER) {
-                        unsigned int pincap;
-                        /*
-                         * don't power down the widget if it controls eapd
-                         * and EAPD_BTLENABLE is set.
-                         */
-                        pincap = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
-                        if (pincap & AC_PINCAP_EAPD) {
-                                int eapd = snd_hda_codec_read(codec, nid,
-                                        0, AC_VERB_GET_EAPD_BTLENABLE, 0);
-                                eapd &= 0x02;
-                                if (power_state == AC_PWRST_D3 && eapd)
-                                        continue;
+                unsigned int wcaps = get_wcaps(codec, nid);
+                if (wcaps & AC_WCAP_POWER) {
+                        unsigned int wid_type = (wcaps & AC_WCAP_TYPE) >>
+                                AC_WCAP_TYPE_SHIFT;
+                        if (wid_type == AC_WID_PIN) {
+                                unsigned int pincap;
+                                /*
+                                 * don't power down the widget if it controls
+                                 * eapd and EAPD_BTLENABLE is set.
+                                 */
+                                pincap = snd_hda_param_read(codec, nid,
+                                                            AC_PAR_PIN_CAP);
+                                if (pincap & AC_PINCAP_EAPD) {
+                                        int eapd = snd_hda_codec_read(codec,
+                                                nid, 0,
+                                                AC_VERB_GET_EAPD_BTLENABLE, 0);
+                                        eapd &= 0x02;
+                                        if (power_state == AC_PWRST_D3 && eapd)
+                                                continue;
+                                }
                         }
                         snd_hda_codec_write(codec, nid, 0,
                                             AC_VERB_SET_POWER_STATE,
@@ -2485,13 +2492,14 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
         /* front */
         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
                                    0, format);
-        if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
+        if (!mout->no_share_stream &&
+            mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
                 /* headphone out will just decode front left/right (stereo) */
                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
                                            0, format);
         /* extra outputs copied from front */
         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
-                if (mout->extra_out_nid[i])
+                if (!mout->no_share_stream && mout->extra_out_nid[i])
                         snd_hda_codec_setup_stream(codec,
                                                    mout->extra_out_nid[i],
                                                    stream_tag, 0, format);
@@ -2501,7 +2509,7 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
                 if (chs >= (i + 1) * 2) /* independent out */
                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
                                                    i * 2, format);
-                else /* copy front */
+                else if (!mout->no_share_stream) /* copy front */
                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
                                                    0, format);
         }
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 20c5e62503..8c56c9cb0d 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -220,6 +220,7 @@ struct hda_multi_out {
         hda_nid_t dig_out_nid;  /* digital out audio widget */
         int max_channels;       /* currently supported analog channels */
         int dig_out_used;       /* current usage of digital out (HDA_DIG_XXX) */
+        int no_share_stream;    /* don't share a stream with multiple pins */
 };
 
 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 0ee8ae4d44..196ad3c940 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -957,6 +957,14 @@ static int patch_ad1986a(struct hda_codec *codec)
                 break;
         }
 
+        /* AD1986A has a hardware problem that it can't share a stream
+         * with multiple output pins.  The copy of front to surrounds
+         * causes noisy or silent outputs at a certain timing, e.g.
+         * changing the volume.
+         * So, let's disable the shared stream.
+         */
+        spec->multiout.no_share_stream = 1;
+
         return 0;
 }
 
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index f9b2c435a1..0401223709 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -111,7 +111,6 @@ struct sigmatel_spec {
         unsigned int alt_switch: 1;
         unsigned int hp_detect: 1;
         unsigned int gpio_mute: 1;
-        unsigned int no_vol_knob :1;
 
         unsigned int gpio_mask, gpio_data;
 
@@ -342,42 +341,6 @@ static int stac92xx_aloopback_put(struct snd_kcontrol *kcontrol,
         return 1;
 }
 
-static int stac92xx_volknob_info(struct snd_kcontrol *kcontrol,
-        struct snd_ctl_elem_info *uinfo)
-{
-        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-        uinfo->count = 1;
-        uinfo->value.integer.min = 0;
-        uinfo->value.integer.max = 127;
-        return 0;
-}
-
-static int stac92xx_volknob_get(struct snd_kcontrol *kcontrol,
-        struct snd_ctl_elem_value *ucontrol)
-{
-        ucontrol->value.integer.value[0] = kcontrol->private_value & 0xff;
-        return 0;
-}
-
-static int stac92xx_volknob_put(struct snd_kcontrol *kcontrol,
-                struct snd_ctl_elem_value *ucontrol)
-{
-        struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
-        unsigned int val = kcontrol->private_value & 0xff;
-
-        if (val == ucontrol->value.integer.value[0])
-                return 0;
-
-        val = ucontrol->value.integer.value[0];
-        kcontrol->private_value &= ~0xff;
-        kcontrol->private_value |= val;
-
-        snd_hda_codec_write_cache(codec, kcontrol->private_value >> 16, 0,
-                AC_VERB_SET_VOLUME_KNOB_CONTROL, val | 0x80);
-        return 1;
-}
-
-
 static struct hda_verb stac9200_core_init[] = {
         /* set dac0mux for dac converter */
         { 0x07, AC_VERB_SET_CONNECT_SEL, 0x00},
@@ -446,18 +409,6 @@ static struct hda_verb stac9205_core_init[] = {
                 .private_value = verb_read | (verb_write << 16), \
         }
 
-#define STAC_VOLKNOB(knob_nid)  \
-        { \
-                .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
-                .name  = "Master Playback Volume", \
-                .count = 1, \
-                .info  = stac92xx_volknob_info, \
-                .get   = stac92xx_volknob_get, \
-                .put   = stac92xx_volknob_put, \
-                        .private_value = 127 | (knob_nid << 16), \
-        }
-
-
 static struct snd_kcontrol_new stac9200_mixer[] = {
         HDA_CODEC_VOLUME("Master Playback Volume", 0xb, 0, HDA_OUTPUT),
         HDA_CODEC_MUTE("Master Playback Switch", 0xb, 0, HDA_OUTPUT),
@@ -487,7 +438,6 @@ static struct snd_kcontrol_new stac9205_mixer[] = {
         },
         STAC_INPUT_SOURCE(2),
         STAC_ANALOG_LOOPBACK(0xFE0, 0x7E0),
-        STAC_VOLKNOB(0x24),
 
         HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x1b, 0x0, HDA_INPUT),
         HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x1d, 0x0, HDA_OUTPUT),
@@ -503,7 +453,6 @@ static struct snd_kcontrol_new stac9205_mixer[] = {
 /* This needs to be generated dynamically based on sequence */
 static struct snd_kcontrol_new stac922x_mixer[] = {
         STAC_INPUT_SOURCE(2),
-        STAC_VOLKNOB(0x16),
         HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x17, 0x0, HDA_INPUT),
         HDA_CODEC_MUTE_IDX("Capture Switch", 0x0, 0x17, 0x0, HDA_INPUT),
         HDA_CODEC_VOLUME_IDX("Mux Capture Volume", 0x0, 0x12, 0x0, HDA_OUTPUT),
@@ -517,7 +466,6 @@ static struct snd_kcontrol_new stac922x_mixer[] = {
 
 static struct snd_kcontrol_new stac927x_mixer[] = {
         STAC_INPUT_SOURCE(3),
-        STAC_VOLKNOB(0x24),
         STAC_ANALOG_LOOPBACK(0xFEB, 0x7EB),
 
         HDA_CODEC_VOLUME_IDX("Capture Volume", 0x0, 0x18, 0x0, HDA_INPUT),
@@ -1931,8 +1879,7 @@ static int stac92xx_auto_create_hp_ctls(struct hda_codec *codec,
         }
         if (spec->multiout.hp_nid) {
                 const char *pfx;
-                if (old_num_dacs == spec->multiout.num_dacs &&
-                    spec->no_vol_knob)
+                if (old_num_dacs == spec->multiout.num_dacs)
                         pfx = "Master";
                 else
                         pfx = "Headphone";
@@ -2489,7 +2436,6 @@ static int patch_stac9200(struct hda_codec *codec)
         codec->spec = spec;
         spec->num_pins = ARRAY_SIZE(stac9200_pin_nids);
         spec->pin_nids = stac9200_pin_nids;
-        spec->no_vol_knob = 1;
         spec->board_config = snd_hda_check_board_config(codec, STAC_9200_MODELS,
                                                         stac9200_models,
                                                         stac9200_cfg_tbl);
@@ -2544,7 +2490,6 @@ static int patch_stac925x(struct hda_codec *codec)
         codec->spec = spec;
         spec->num_pins = ARRAY_SIZE(stac925x_pin_nids);
         spec->pin_nids = stac925x_pin_nids;
-        spec->no_vol_knob = 1;
         spec->board_config = snd_hda_check_board_config(codec, STAC_925x_MODELS,
                                                         stac925x_models,
                                                         stac925x_cfg_tbl);
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index 5d601ad6da..abac62866d 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -725,7 +725,8 @@ static int cs4270_probe(struct platform_device *pdev)
         codec->owner = THIS_MODULE;
         codec->dai = &cs4270_dai;
         codec->num_dai = 1;
-        codec->private_data = codec + ALIGN(sizeof(struct snd_soc_codec), 4);
+        codec->private_data = (void *) codec +
+                ALIGN(sizeof(struct snd_soc_codec), 4);
 
         socdev->codec = codec;
 
diff --git a/sound/soc/s3c24xx/s3c2443-ac97.c b/sound/soc/s3c24xx/s3c2443-ac97.c
index 75acf7ef55..758a2637e7 100644
--- a/sound/soc/s3c24xx/s3c2443-ac97.c
+++ b/sound/soc/s3c24xx/s3c2443-ac97.c
@@ -32,7 +32,7 @@
 
 #include <asm/hardware.h>
 #include <asm/io.h>
-#include <asm/arch/regs-ac97.h>
+#include <asm/plat-s3c/regs-ac97.h>
 #include <asm/arch/regs-gpio.h>
 #include <asm/arch/regs-clock.h>
 #include <asm/arch/audio.h>