119 files changed, 751 insertions, 540 deletions
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
index 5e34ca6d38b6..3e073467caca 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -28,6 +28,7 @@ config SHARP_PARAM
 config SHARPSL_PM
        bool
+        select APM_EMULATION
 config SHARP_SCOOP
        bool
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index 44211a0af19a..ba4a1bb3ee40 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -215,13 +215,14 @@ int gpio_direction_input(unsigned pin)
 }
 EXPORT_SYMBOL(gpio_direction_input);
-int gpio_direction_output(unsigned pin)
+int gpio_direction_output(unsigned pin, int value)
 {
        void __iomem    *pio = pin_to_controller(pin);
        unsigned        mask = pin_to_mask(pin);
        if (!pio || !(__raw_readl(pio + PIO_PSR) & mask))
                return -EINVAL;
+        __raw_writel(mask, pio + (value ? PIO_SODR : PIO_CODR));
        __raw_writel(mask, pio + PIO_OER);
        return 0;
 }
diff --git a/arch/arm/mach-imx/cpufreq.c b/arch/arm/mach-imx/cpufreq.c
index 4f66e90db74f..7e70e0b0b989 100644
--- a/arch/arm/mach-imx/cpufreq.c
+++ b/arch/arm/mach-imx/cpufreq.c
@@ -50,6 +50,7 @@
 #define CR_920T_ASYNC_MODE      0xC0000000
 static u32 mpctl0_at_boot;
+static u32 bclk_div_at_boot;
 static void imx_set_async_mode(void)
 {
@@ -82,13 +83,13 @@ static void imx_set_mpctl0(u32 mpctl0)
 * imx_compute_mpctl - compute new PLL parameters
 * @new_mpctl:  pointer to location assigned by new PLL control register value
 * @cur_mpctl:  current PLL control register parameters
+ * @f_ref:      reference source frequency Hz
 * @freq:       required frequency in Hz
 * @relation:   is one of %CPUFREQ_RELATION_L (supremum)
 *              and %CPUFREQ_RELATION_H (infimum)
 */
-long imx_compute_mpctl(u32 *new_mpctl, u32 cur_mpctl, unsigned long freq, int relation)
+long imx_compute_mpctl(u32 *new_mpctl, u32 cur_mpctl, u32 f_ref, unsigned long freq, int relation)
 {
-        u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512);
        u32 mfi;
        u32 mfn;
        u32 mfd;
@@ -182,7 +183,7 @@ static int imx_set_target(struct cpufreq_policy *policy,
        unsigned long flags;
        long freq;
        long sysclk;
-        unsigned int bclk_div = 1;
+        unsigned int bclk_div = bclk_div_at_boot;
        /*
         * Some governors do not respects CPU and policy lower limits
@@ -202,8 +203,8 @@ static int imx_set_target(struct cpufreq_policy *policy,
        sysclk = imx_get_system_clk();
-        if (freq > sysclk + 1000000) {
+        if (freq > sysclk / bclk_div_at_boot + 1000000) {
-                freq = imx_compute_mpctl(&mpctl0, mpctl0_at_boot, freq, relation);
+                freq = imx_compute_mpctl(&mpctl0, mpctl0_at_boot, CLK32 * 512, freq, relation);
                if (freq < 0) {
                        printk(KERN_WARNING "imx: target frequency %ld Hz cannot be set\n", freq);
                        return -EINVAL;
@@ -217,6 +218,8 @@ static int imx_set_target(struct cpufreq_policy *policy,
                        if(bclk_div > 16)
                                bclk_div = 16;
+                        if(bclk_div < bclk_div_at_boot)
+                                bclk_div = bclk_div_at_boot;
                }
                freq = (sysclk + bclk_div / 2) / bclk_div;
        }
@@ -285,7 +288,7 @@ static struct cpufreq_driver imx_driver = {
 static int __init imx_cpufreq_init(void)
 {
+        bclk_div_at_boot = __mfld2val(CSCR_BCLK_DIV, CSCR) + 1;
        mpctl0_at_boot = 0;
        if((CSCR & CSCR_MPEN) &&
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c
index b5aa49d00ca3..7a7fa51ec62c 100644
--- a/arch/arm/mach-imx/generic.c
+++ b/arch/arm/mach-imx/generic.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL(imx_gpio_mode);
 *  f = 2 * f_ref * --------------------
 *                        pd + 1
 */
-static unsigned int imx_decode_pll(unsigned int pll)
+static unsigned int imx_decode_pll(unsigned int pll, u32 f_ref)
 {
        unsigned long long ll;
        unsigned long quot;
@@ -111,7 +111,6 @@ static unsigned int imx_decode_pll(unsigned int pll)
        u32 mfn = pll & 0x3ff;
        u32 mfd = (pll >> 16) & 0x3ff;
        u32 pd =  (pll >> 26) & 0xf;
-        u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512);
        mfi = mfi <= 5 ? 5 : mfi;
@@ -124,13 +123,15 @@ static unsigned int imx_decode_pll(unsigned int pll)
 unsigned int imx_get_system_clk(void)
 {
-        return imx_decode_pll(SPCTL0);
+        u32 f_ref = (CSCR & CSCR_SYSTEM_SEL) ? 16000000 : (CLK32 * 512);
+        return imx_decode_pll(SPCTL0, f_ref);
 }
 EXPORT_SYMBOL(imx_get_system_clk);
 unsigned int imx_get_mcu_clk(void)
 {
-        return imx_decode_pll(MPCTL0);
+        return imx_decode_pll(MPCTL0, CLK32 * 512);
 }
 EXPORT_SYMBOL(imx_get_mcu_clk);
diff --git a/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c b/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c
index a193dd931512..760c9d0db7c3 100644
--- a/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c
+++ b/arch/arm/mach-ns9xxx/mach-cc9p9360dev.c
@@ -32,7 +32,7 @@ static void __init mach_cc9p9360dev_init_machine(void)
        board_a9m9750dev_init_machine();
 }
-MACHINE_START(CC9P9360DEV, "Connect Core 9P 9360 on an A9M9750 Devboard")
+MACHINE_START(CC9P9360DEV, "Digi ConnectCore 9P 9360 on an A9M9750 Devboard")
        .map_io = mach_cc9p9360dev_map_io,
        .init_irq = mach_cc9p9360dev_init_irq,
        .init_machine = mach_cc9p9360dev_init_machine,
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 6e113078f7ab..ad519390dd58 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -27,6 +27,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/input.h>
+#include <linux/workqueue.h>
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 0de201c3d50b..5170481afeab 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -27,6 +27,7 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/sram.h>
+#include <asm/div64.h>
 #include "prcm-regs.h"
 #include "memory.h"
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 8816f5a33a28..162978fd5359 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -1013,7 +1013,8 @@ static struct clk dss2_fck = {		/* Alt clk used in power management */
        .name           = "dss2_fck",
        .parent         = &sys_ck,              /* fixed at sys_ck or 48MHz */
        .flags          = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X |
-                                RATE_CKCTL | CM_CORE_SEL1 | RATE_FIXED,
+                                RATE_CKCTL | CM_CORE_SEL1 | RATE_FIXED |
+                                DELAYED_APP,
        .enable_reg     = (void __iomem *)&CM_FCLKEN1_CORE,
        .enable_bit     = 1,
        .src_offset     = 13,
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 7915a5a22865..72738771fb57 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -28,6 +28,7 @@
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/system.h>
+#include <asm/arch/pxa-regs.h>
 #include <asm/arch/irda.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/udc.h>
@@ -35,8 +36,6 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
-#include <asm/arch/pxa-regs.h>
 #include <asm/arch/tosa.h>
 #include <asm/hardware/scoop.h>
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 192a5a26cf2b..9e13c8358ea7 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -27,6 +27,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/flash.h>
 #include <asm/irq.h>
+#include <asm/gpio.h>
 #include "generic.h"
@@ -153,7 +154,7 @@ int gpio_direction_input(unsigned gpio)
 EXPORT_SYMBOL(gpio_direction_input);
-int gpio_direction_output(unsigned gpio)
+int gpio_direction_output(unsigned gpio, int value)
 {
        unsigned long flags;
@@ -161,6 +162,7 @@ int gpio_direction_output(unsigned gpio)
                return -EINVAL;
        local_irq_save(flags);
+        gpio_set_value(gpio, value);
        GPDR |= GPIO_GPIO(gpio);
        local_irq_restore(flags);
        return 0;
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 9ba5654cde11..1eb99b814f5b 100644
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -214,7 +214,7 @@ int gpio_direction_input(unsigned int gpio)
 }
 EXPORT_SYMBOL(gpio_direction_input);
-int gpio_direction_output(unsigned int gpio)
+int gpio_direction_output(unsigned int gpio, int value)
 {
        struct pio_device *pio;
        unsigned int pin;
@@ -223,6 +223,8 @@ int gpio_direction_output(unsigned int gpio)
        if (!pio)
                return -ENODEV;
+        gpio_set_value(gpio, value);
        pin = gpio & 0x1f;
        pio_writel(pio, OER, 1 << pin);
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 27e8453274e6..53d62373a524 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -220,7 +220,7 @@ config PARAVIRT
 config VMI
        bool "VMI Paravirt-ops support"
-        depends on PARAVIRT
+        depends on PARAVIRT && !COMPAT_VDSO
        help
          VMI provides a paravirtualized interface to the VMware ESX server
          (it could be used by other hypervisors in theory too, but is not
diff --git a/arch/i386/defconfig b/arch/i386/defconfig
index 5ae1e0bc8fd7..f4efd66e1ee5 100644
--- a/arch/i386/defconfig
+++ b/arch/i386/defconfig
@@ -1,10 +1,13 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-git8
+# Linux kernel version: 2.6.21-rc3
-# Tue Feb 13 11:25:18 2007
+# Wed Mar  7 15:29:47 2007
 #
 CONFIG_X86_32=y
 CONFIG_GENERIC_TIME=y
+CONFIG_CLOCKSOURCE_WATCHDOG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_SEMAPHORE_SLEEPERS=y
@@ -34,6 +37,7 @@ CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
@@ -44,6 +48,7 @@ CONFIG_IKCONFIG_PROC=y
 # CONFIG_CPUSETS is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
@@ -103,6 +108,9 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
 #
 # Processor type and features
 #
+# CONFIG_TICK_ONESHOT is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_HIGH_RES_TIMERS is not set
 CONFIG_SMP=y
 # CONFIG_X86_PC is not set
 # CONFIG_X86_ELAN is not set
@@ -235,10 +243,8 @@ CONFIG_ACPI_PROCFS=y
 CONFIG_ACPI_AC=y
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
-# CONFIG_ACPI_HOTKEY is not set
 CONFIG_ACPI_FAN=y
 # CONFIG_ACPI_DOCK is not set
-# CONFIG_ACPI_BAY is not set
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_THERMAL=y
 # CONFIG_ACPI_ASUS is not set
@@ -289,6 +295,7 @@ CONFIG_X86_POWERNOW_K8_ACPI=y
 # CONFIG_X86_CPUFREQ_NFORCE2 is not set
 # CONFIG_X86_LONGRUN is not set
 # CONFIG_X86_LONGHAUL is not set
+# CONFIG_X86_E_POWERSAVER is not set
 #
 # shared options
@@ -368,7 +375,7 @@ CONFIG_IP_PNP_DHCP=y
 # CONFIG_INET_ESP is not set
 # CONFIG_INET_IPCOMP is not set
 # CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_TUNNEL=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
 # CONFIG_INET_XFRM_MODE_BEET is not set
@@ -470,7 +477,13 @@ CONFIG_FW_LOADER=y
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 #
 # Block devices
@@ -490,7 +503,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
@@ -500,6 +512,7 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_IBM_ASM is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
+# CONFIG_SONY_LAPTOP is not set
 #
 # ATA/ATAPI/MFM/RLL support
@@ -526,6 +539,7 @@ CONFIG_BLK_DEV_IDEACPI=y
 #
 CONFIG_IDE_GENERIC=y
 # CONFIG_BLK_DEV_CMD640 is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -679,6 +693,7 @@ CONFIG_SATA_VIA=y
 # CONFIG_SATA_VITESSE is not set
 # CONFIG_SATA_INIC162X is not set
 CONFIG_SATA_INTEL_COMBINED=y
+CONFIG_SATA_ACPI=y
 # CONFIG_PATA_ALI is not set
 # CONFIG_PATA_AMD is not set
 # CONFIG_PATA_ARTOP is not set
@@ -786,6 +801,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
+# CONFIG_NET_SB1000 is not set
 #
 # ARCnet devices
@@ -979,6 +995,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_PNP=y
 CONFIG_SERIAL_8250_NR_UARTS=4
 CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 # CONFIG_SERIAL_8250_EXTENDED is not set
@@ -1065,6 +1082,11 @@ CONFIG_HANGCHECK_TIMER=y
 # CONFIG_HWMON_VID is not set
 #
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -1078,7 +1100,7 @@ CONFIG_HANGCHECK_TIMER=y
 #
 # Graphics support
 #
-CONFIG_FIRMWARE_EDID=y
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 # CONFIG_FB is not set
 #
@@ -1089,7 +1111,6 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=128
 CONFIG_VIDEO_SELECT=y
 CONFIG_DUMMY_CONSOLE=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 #
 # Sound
@@ -1238,6 +1259,7 @@ CONFIG_USB_MON=y
 # 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
@@ -1248,6 +1270,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
 # CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
 # CONFIG_USB_TEST is not set
 #
@@ -1506,6 +1529,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
@@ -1525,6 +1549,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_FORCED_INLINING is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
+# CONFIG_FAULT_INJECTION is not set
 CONFIG_EARLY_PRINTK=y
 CONFIG_DEBUG_STACKOVERFLOW=y
 # CONFIG_DEBUG_STACK_USAGE is not set
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c
index 2383bcf18c5d..5cff7970911e 100644
--- a/arch/i386/kernel/apic.c
+++ b/arch/i386/kernel/apic.c
@@ -338,6 +338,7 @@ void __init setup_boot_APIC_clock(void)
        void (*real_handler)(struct clock_event_device *dev);
        unsigned long deltaj;
        long delta, deltapm;
+        int pm_referenced = 0;
        apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n"
                    "calibrating APIC timer ...\n");
@@ -357,7 +358,8 @@ void __init setup_boot_APIC_clock(void)
        /* Let the interrupts run */
        local_irq_enable();
-        while(lapic_cal_loops <= LAPIC_CAL_LOOPS);
+        while (lapic_cal_loops <= LAPIC_CAL_LOOPS)
+                cpu_relax();
        local_irq_disable();
@@ -394,6 +396,7 @@ void __init setup_boot_APIC_clock(void)
                               "%lu (%ld)\n", (unsigned long) res, delta);
                        delta = (long) res;
                }
+                pm_referenced = 1;
        }
        /* Calculate the scaled math multiplication factor */
@@ -423,68 +426,41 @@ void __init setup_boot_APIC_clock(void)
                    calibration_result / (1000000 / HZ),
                    calibration_result % (1000000 / HZ));
-        apic_printk(APIC_VERBOSE, "... verify APIC timer\n");
-        /*
-         * Setup the apic timer manually
-         */
        local_apic_timer_verify_ok = 1;
-        levt->event_handler = lapic_cal_handler;
-        lapic_timer_setup(CLOCK_EVT_MODE_PERIODIC, levt);
-        lapic_cal_loops = -1;
-        /* Let the interrupts run */
+        /* We trust the pm timer based calibration */
-        local_irq_enable();
+        if (!pm_referenced) {
+                apic_printk(APIC_VERBOSE, "... verify APIC timer\n");
-        while(lapic_cal_loops <= LAPIC_CAL_LOOPS);
+                /*
+                 * Setup the apic timer manually
+                 */
+                levt->event_handler = lapic_cal_handler;
+                lapic_timer_setup(CLOCK_EVT_MODE_PERIODIC, levt);
+                lapic_cal_loops = -1;
-        local_irq_disable();
+                /* Let the interrupts run */
+                local_irq_enable();
-        /* Stop the lapic timer */
+                while(lapic_cal_loops <= LAPIC_CAL_LOOPS)
-        lapic_timer_setup(CLOCK_EVT_MODE_SHUTDOWN, levt);
+                        cpu_relax();
-        local_irq_enable();
+                local_irq_disable();
-        /* Jiffies delta */
+                /* Stop the lapic timer */
-        deltaj = lapic_cal_j2 - lapic_cal_j1;
+                lapic_timer_setup(CLOCK_EVT_MODE_SHUTDOWN, levt);
-        apic_printk(APIC_VERBOSE, "... jiffies delta = %lu\n", deltaj);
-        /* Check, if the PM timer is available */
+                local_irq_enable();
-        deltapm = lapic_cal_pm2 - lapic_cal_pm1;
-        apic_printk(APIC_VERBOSE, "... PM timer delta = %ld\n", deltapm);
-        local_apic_timer_verify_ok = 0;
+                /* Jiffies delta */
+                deltaj = lapic_cal_j2 - lapic_cal_j1;
+                apic_printk(APIC_VERBOSE, "... jiffies delta = %lu\n", deltaj);
-        if (deltapm) {
-                if (deltapm > (pm_100ms - pm_thresh) &&
-                    deltapm < (pm_100ms + pm_thresh)) {
-                        apic_printk(APIC_VERBOSE, "... PM timer result ok\n");
-                        /* Check, if the jiffies result is consistent */
-                        if (deltaj < LAPIC_CAL_LOOPS-2 ||
-                            deltaj > LAPIC_CAL_LOOPS+2) {
-                                /*
-                                 * Not sure, what we can do about this one.
-                                 * When high resultion timers are active
-                                 * and the lapic timer does not stop in C3
-                                 * we are fine. Otherwise more trouble might
-                                 * be waiting. -- tglx
-                                 */
-                                printk(KERN_WARNING "Global event device %s "
-                                       "has wrong frequency "
-                                       "(%lu ticks instead of %d)\n",
-                                       global_clock_event->name, deltaj,
-                                       LAPIC_CAL_LOOPS);
-                        }
-                        local_apic_timer_verify_ok = 1;
-                }
-        } else {
                /* Check, if the jiffies result is consistent */
-                if (deltaj >= LAPIC_CAL_LOOPS-2 &&
+                if (deltaj >= LAPIC_CAL_LOOPS-2 && deltaj <= LAPIC_CAL_LOOPS+2)
-                    deltaj <= LAPIC_CAL_LOOPS+2) {
                        apic_printk(APIC_VERBOSE, "... jiffies result ok\n");
-                        local_apic_timer_verify_ok = 1;
+                else
-                }
+                        local_apic_timer_verify_ok = 0;
        }
        if (!local_apic_timer_verify_ok) {
diff --git a/arch/i386/kernel/i386_ksyms.c b/arch/i386/kernel/i386_ksyms.c
index e3d4b73bfdb0..4afe26e86260 100644
--- a/arch/i386/kernel/i386_ksyms.c
+++ b/arch/i386/kernel/i386_ksyms.c
@@ -28,3 +28,5 @@ EXPORT_SYMBOL(__read_lock_failed);
 #endif
 EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(_proxy_pda);
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 821df34d2b3a..14702427b104 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -245,14 +245,6 @@ static int __init check_nmi_watchdog(void)
        unsigned int *prev_nmi_count;
        int cpu;
-        /* Enable NMI watchdog for newer systems.
-           Probably safe on most older systems too, but let's be careful.
-           IBM ThinkPads use INT10 inside SMM and that allows early NMI inside SMM
-           which hangs the system. Disable watchdog for all thinkpads */
-        if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004 &&
-                !dmi_name_in_vendors("ThinkPad"))
-                nmi_watchdog = NMI_LOCAL_APIC;
        if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT))
                return 0;
diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c
index 602660df455c..0e65f7ab63a2 100644
--- a/arch/i386/kernel/tsc.c
+++ b/arch/i386/kernel/tsc.c
@@ -105,7 +105,7 @@ unsigned long long sched_clock(void)
        /*
         * Fall back to jiffies if there's no TSC available:
         */
-        if (unlikely(tsc_disable))
+        if (tsc_unstable || unlikely(tsc_disable))
                /* No locking but a rare wrong value is not a big deal: */
                return (jiffies_64 - INITIAL_JIFFIES) * (1000000000 / HZ);
diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c
index fbf45fa08320..fb07a1aad225 100644
--- a/arch/i386/kernel/vmi.c
+++ b/arch/i386/kernel/vmi.c
@@ -23,7 +23,6 @@
 */
 #include <linux/module.h>
-#include <linux/license.h>
 #include <linux/cpu.h>
 #include <linux/bootmem.h>
 #include <linux/mm.h>
@@ -48,7 +47,6 @@ typedef u64 __attribute__((regparm(2))) (VROMLONGFUNC)(int);
   (((VROMLONGFUNC *)(rom->func)) (arg))
 static struct vrom_header *vmi_rom;
-static int license_gplok;
 static int disable_pge;
 static int disable_pse;
 static int disable_sep;
@@ -629,13 +627,14 @@ static inline int __init check_vmi_rom(struct vrom_header *rom)
                rom->api_version_maj, rom->api_version_min,
                pci->rom_version_maj, pci->rom_version_min);
-        license_gplok = license_is_gpl_compatible(license);
+        /* Don't allow BSD/MIT here for now because we don't want to end up
-        if (!license_gplok) {
+           with any binary only shim layers */
-                printk(KERN_WARNING "VMI: ROM license '%s' taints kernel... "
+        if (strcmp(license, "GPL") && strcmp(license, "GPL v2")) {
-                       "inlining disabled\n",
+                printk(KERN_WARNING "VMI: Non GPL license `%s' found for ROM. Not used.\n",
-                       license);
+                        license);
-                add_taint(TAINT_PROPRIETARY_MODULE);
+                return 0;
-        }
+        }
        return 1;
 }
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 600be3ebae05..6b10e5d28488 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -247,10 +247,18 @@ sn_io_slot_fixup(struct pci_dev *dev)
                addr = ((addr << 4) >> 4) | __IA64_UNCACHED_OFFSET;
                dev->resource[idx].start = addr;
                dev->resource[idx].end = addr + size;
+                /*
+                 * if it's already in the device structure, remove it before
+                 * inserting
+                 */
+                if (dev->resource[idx].parent && dev->resource[idx].parent->child)
+                        release_resource(&dev->resource[idx]);
                if (dev->resource[idx].flags & IORESOURCE_IO)
-                        dev->resource[idx].parent = &ioport_resource;
+                        insert_resource(&ioport_resource, &dev->resource[idx]);
                else
-                        dev->resource[idx].parent = &iomem_resource;
+                        insert_resource(&iomem_resource, &dev->resource[idx]);
                /* If ROM, mark as shadowed in PROM */
                if (idx == PCI_ROM_RESOURCE)
                        dev->resource[idx].flags |= IORESOURCE_ROM_BIOS_COPY;
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a1cd84f9b3bc..5f29018a6533 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -250,7 +250,7 @@ config LASAT
        select R5000_CPU_SCACHE
        select SYS_HAS_CPU_R5000
        select SYS_SUPPORTS_32BIT_KERNEL
-        select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+        select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select GENERIC_HARDIRQS_NO__DO_IRQ
@@ -470,11 +470,6 @@ config MIPS_XXS1500
        select SOC_AU1500
        select SYS_SUPPORTS_LITTLE_ENDIAN
-config PNX8550_V2PCI
-        bool "Philips PNX8550 based Viper2-PCI board"
-        select PNX8550
-        select SYS_SUPPORTS_LITTLE_ENDIAN
 config PNX8550_JBS
        bool "Philips PNX8550 based JBS board"
        select PNX8550
@@ -1564,6 +1559,7 @@ config MIPS_MT_SMP
        select CPU_MIPSR2_IRQ_VI
        select CPU_MIPSR2_SRS
        select MIPS_MT
+        select NR_CPUS_DEFAULT_2
        select SMP
        select SYS_SUPPORTS_SMP
        help
@@ -1578,7 +1574,6 @@ config MIPS_MT_SMTC
        select CPU_MIPSR2_IRQ_VI
        select CPU_MIPSR2_SRS
        select MIPS_MT
-        select NR_CPUS_DEFAULT_2
        select NR_CPUS_DEFAULT_8
        select SMP
        select SYS_SUPPORTS_SMP
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig
index 458894933a4c..39e251300c64 100644
--- a/arch/mips/configs/atlas_defconfig
+++ b/arch/mips/configs/atlas_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_ATLAS=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index aa05e294ea62..4713a13211ce 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index b2594fa556f3..5e7ae56b1f3c 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig
index 9090a7aba6c1..ba593b510b76 100644
--- a/arch/mips/configs/cobalt_defconfig
+++ b/arch/mips/configs/cobalt_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_COBALT=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig
index 4cb8cf4255a2..0db6a8b37301 100644
--- a/arch/mips/configs/db1000_defconfig
+++ b/arch/mips/configs/db1000_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_DB1000=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig
index d86dedf27fc4..162add97c5ef 100644
--- a/arch/mips/configs/db1100_defconfig
+++ b/arch/mips/configs/db1100_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_DB1100=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig
index c24b6008345e..82801ec43e6a 100644
--- a/arch/mips/configs/db1200_defconfig
+++ b/arch/mips/configs/db1200_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_DB1200=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig
index baad2c5223ba..545f23094e13 100644
--- a/arch/mips/configs/db1500_defconfig
+++ b/arch/mips/configs/db1500_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_DB1500=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig
index c29fdab0423a..5bd3b4328e57 100644
--- a/arch/mips/configs/db1550_defconfig
+++ b/arch/mips/configs/db1550_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_DB1550=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ddb5477_defconfig b/arch/mips/configs/ddb5477_defconfig
index f4b316d2cd70..5b502a2013fb 100644
--- a/arch/mips/configs/ddb5477_defconfig
+++ b/arch/mips/configs/ddb5477_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 CONFIG_DDB5477=y
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig
index 9c38e5c77761..4bbdab078ff1 100644
--- a/arch/mips/configs/decstation_defconfig
+++ b/arch/mips/configs/decstation_defconfig
@@ -39,7 +39,6 @@ CONFIG_MACH_DECSTATION=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 922af379aa41..b5714a6a5398 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig
index c0db8f14713d..3044579f171a 100644
--- a/arch/mips/configs/emma2rh_defconfig
+++ b/arch/mips/configs/emma2rh_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ev64120_defconfig b/arch/mips/configs/ev64120_defconfig
index ce088b36291d..c10e4e063226 100644
--- a/arch/mips/configs/ev64120_defconfig
+++ b/arch/mips/configs/ev64120_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_EV64120=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig
index 82f204d080b7..460d7a26a8ba 100644
--- a/arch/mips/configs/excite_defconfig
+++ b/arch/mips/configs/excite_defconfig
@@ -40,7 +40,6 @@ CONFIG_BASLER_EXCITE=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index cb81f13bd45a..7ec618f3c8b9 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig
index 46f6ac4083b9..9ddc3eff4793 100644
--- a/arch/mips/configs/ip27_defconfig
+++ b/arch/mips/configs/ip27_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index d9e5000d5329..8fc18809d5ff 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/jaguar-atx_defconfig b/arch/mips/configs/jaguar-atx_defconfig
index 57ef0c45a62b..083104daa2ca 100644
--- a/arch/mips/configs/jaguar-atx_defconfig
+++ b/arch/mips/configs/jaguar-atx_defconfig
@@ -39,7 +39,6 @@ CONFIG_MOMENCO_JAGUAR_ATX=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 21d979f8326c..9331cb0a19b1 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -39,7 +39,6 @@ CONFIG_MACH_JAZZ=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 98b9fbc042f4..21a094752dab 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/lasat200_defconfig b/arch/mips/configs/lasat200_defconfig
index b3f767ff1c5a..fd4272c1458a 100644
--- a/arch/mips/configs/lasat200_defconfig
+++ b/arch/mips/configs/lasat200_defconfig
@@ -39,7 +39,6 @@ CONFIG_LASAT=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index a5f379d626d6..1f64d7632a03 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_MALTA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig
index 5ff53e184912..a2db5c201216 100644
--- a/arch/mips/configs/mipssim_defconfig
+++ b/arch/mips/configs/mipssim_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_SIM=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index 750e6445c613..ad5c0bf87b2b 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ocelot_3_defconfig b/arch/mips/configs/ocelot_3_defconfig
index 2febd0a7fba2..28547313ce13 100644
--- a/arch/mips/configs/ocelot_3_defconfig
+++ b/arch/mips/configs/ocelot_3_defconfig
@@ -39,7 +39,6 @@ CONFIG_MOMENCO_OCELOT_3=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ocelot_c_defconfig b/arch/mips/configs/ocelot_c_defconfig
index b8f457300bbf..82ff6fc0cd41 100644
--- a/arch/mips/configs/ocelot_c_defconfig
+++ b/arch/mips/configs/ocelot_c_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 CONFIG_MOMENCO_OCELOT_C=y
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ocelot_defconfig b/arch/mips/configs/ocelot_defconfig
index 8ade072271cd..15a027e00eec 100644
--- a/arch/mips/configs/ocelot_defconfig
+++ b/arch/mips/configs/ocelot_defconfig
@@ -39,7 +39,6 @@ CONFIG_MOMENCO_OCELOT=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/ocelot_g_defconfig b/arch/mips/configs/ocelot_g_defconfig
index d20a2216c11d..7078e6b3ea11 100644
--- a/arch/mips/configs/ocelot_g_defconfig
+++ b/arch/mips/configs/ocelot_g_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 CONFIG_MOMENCO_OCELOT_G=y
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig
index 33fcc8133bc0..69678d99ae61 100644
--- a/arch/mips/configs/pb1100_defconfig
+++ b/arch/mips/configs/pb1100_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_PB1100=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig
index e07c55dc8dc1..070672799dac 100644
--- a/arch/mips/configs/pb1500_defconfig
+++ b/arch/mips/configs/pb1500_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_PB1500=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
index df210dd22476..354e49b7a5f1 100644
--- a/arch/mips/configs/pb1550_defconfig
+++ b/arch/mips/configs/pb1550_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_PB1550=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig
index 106a1641c0b5..fae16c5ec521 100644
--- a/arch/mips/configs/pnx8550-jbs_defconfig
+++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 CONFIG_PNX8550_JBS=y
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pnx8550-stb810_defconfig b/arch/mips/configs/pnx8550-stb810_defconfig
index 8caa2cd1aa7c..cd821e52181d 100644
--- a/arch/mips/configs/pnx8550-stb810_defconfig
+++ b/arch/mips/configs/pnx8550-stb810_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 CONFIG_PNX8550_STB810=y
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/pnx8550-v2pci_defconfig b/arch/mips/configs/pnx8550-v2pci_defconfig
index 43f1becec2a4..3d6c2d743502 100644
--- a/arch/mips/configs/pnx8550-v2pci_defconfig
+++ b/arch/mips/configs/pnx8550-v2pci_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-CONFIG_PNX8550_V2PCI=y
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig
index f68396d19f9a..8e8d03157954 100644
--- a/arch/mips/configs/qemu_defconfig
+++ b/arch/mips/configs/qemu_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig
index a6a824fcc874..29e0df9f4be0 100644
--- a/arch/mips/configs/rbhma4500_defconfig
+++ b/arch/mips/configs/rbhma4500_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index bee3702d501d..5593cde9f74c 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig
index 3c891ed10141..6c4f09a381e2 100644
--- a/arch/mips/configs/sb1250-swarm_defconfig
+++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig
index e31d964a053b..988b9cdef01f 100644
--- a/arch/mips/configs/sead_defconfig
+++ b/arch/mips/configs/sead_defconfig
@@ -39,7 +39,6 @@ CONFIG_MIPS_SEAD=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 5771c1aee76a..b5be8b74d896 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/tb0229_defconfig b/arch/mips/configs/tb0229_defconfig
index a8eb4b182d34..1756d2bdf6b8 100644
--- a/arch/mips/configs/tb0229_defconfig
+++ b/arch/mips/configs/tb0229_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index c58afa2eac6b..8bb6be4342b6 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index 2abbd6827720..8f019ffcc71b 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig
index 44b6b7c1fdb6..52b48c0715d3 100644
--- a/arch/mips/configs/wrppmc_defconfig
+++ b/arch/mips/configs/wrppmc_defconfig
@@ -39,7 +39,6 @@ CONFIG_WR_PPMC=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig
index f24e1c6fc484..6824606309e5 100644
--- a/arch/mips/configs/yosemite_defconfig
+++ b/arch/mips/configs/yosemite_defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/defconfig b/arch/mips/defconfig
index 8cb8f5919194..41211f8b7738 100644
--- a/arch/mips/defconfig
+++ b/arch/mips/defconfig
@@ -39,7 +39,6 @@ CONFIG_ZONE_DMA=y
 # CONFIG_MOMENCO_OCELOT_C is not set
 # CONFIG_MOMENCO_OCELOT_G is not set
 # CONFIG_MIPS_XXS1500 is not set
-# CONFIG_PNX8550_V2PCI is not set
 # CONFIG_PNX8550_JBS is not set
 # CONFIG_PNX8550_STB810 is not set
 # CONFIG_DDB5477 is not set
diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c
index 5929f883e46b..29eadd404fa5 100644
--- a/arch/mips/kernel/kspd.c
+++ b/arch/mips/kernel/kspd.c
@@ -70,6 +70,7 @@ static int sp_stopping = 0;
 #define MTSP_SYSCALL_GETTIME    (MTSP_SYSCALL_BASE + 7)
 #define MTSP_SYSCALL_PIPEFREQ   (MTSP_SYSCALL_BASE + 8)
 #define MTSP_SYSCALL_GETTOD     (MTSP_SYSCALL_BASE + 9)
+#define MTSP_SYSCALL_IOCTL     (MTSP_SYSCALL_BASE + 10)
 #define MTSP_O_RDONLY           0x0000
 #define MTSP_O_WRONLY           0x0001
@@ -110,7 +111,8 @@ struct apsp_table syscall_command_table[] = {
        { MTSP_SYSCALL_CLOSE, __NR_close },
        { MTSP_SYSCALL_READ, __NR_read },
        { MTSP_SYSCALL_WRITE, __NR_write },
-        { MTSP_SYSCALL_LSEEK32, __NR_lseek }
+        { MTSP_SYSCALL_LSEEK32, __NR_lseek },
+        { MTSP_SYSCALL_IOCTL, __NR_ioctl }
 };
 static int sp_syscall(int num, int arg0, int arg1, int arg2, int arg3)
@@ -189,6 +191,8 @@ void sp_work_handle_request(void)
        struct mtsp_syscall_generic generic;
        struct mtsp_syscall_ret ret;
        struct kspd_notifications *n;
+        unsigned long written;
+        mm_segment_t old_fs;
        struct timeval tv;
        struct timezone tz;
        int cmd;
@@ -199,7 +203,11 @@ void sp_work_handle_request(void)
        ret.retval = -1;
-        if (!rtlx_read(RTLX_CHANNEL_SYSIO, &sc, sizeof(struct mtsp_syscall), 0)) {
+        old_fs = get_fs();
+        set_fs(KERNEL_DS);
+        if (!rtlx_read(RTLX_CHANNEL_SYSIO, &sc, sizeof(struct mtsp_syscall))) {
+                set_fs(old_fs);
                printk(KERN_ERR "Expected request but nothing to read\n");
                return;
        }
@@ -207,7 +215,8 @@ void sp_work_handle_request(void)
        size = sc.size;
        if (size) {
-                if (!rtlx_read(RTLX_CHANNEL_SYSIO, &generic, size, 0)) {
+                if (!rtlx_read(RTLX_CHANNEL_SYSIO, &generic, size)) {
+                        set_fs(old_fs);
                        printk(KERN_ERR "Expected request but nothing to read\n");
                        return;
                }
@@ -280,8 +289,11 @@ void sp_work_handle_request(void)
        if (vpe_getuid(SP_VPE))
                sp_setfsuidgid( 0, 0);
-        if ((rtlx_write(RTLX_CHANNEL_SYSIO, &ret, sizeof(struct mtsp_syscall_ret), 0))
+        old_fs = get_fs();
-            < sizeof(struct mtsp_syscall_ret))
+        set_fs(KERNEL_DS);
+        written = rtlx_write(RTLX_CHANNEL_SYSIO, &ret, sizeof(ret));
+        set_fs(old_fs);
+        if (written < sizeof(ret))
                printk("KSPD: sp_work_handle_request failed to send to SP\n");
 }
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 1df544c1f966..37849edd0645 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -311,6 +311,8 @@ asmlinkage int sys32_sched_rr_get_interval(compat_pid_t pid,
        return ret;
 }
+#ifdef CONFIG_SYSVIPC
 asmlinkage long
 sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 {
@@ -368,6 +370,16 @@ sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
        return err;
 }
+#else
+asmlinkage long
+sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+{
+        return -ENOSYS;
+}
+#endif /* CONFIG_SYSVIPC */
 #ifdef CONFIG_MIPS32_N32
 asmlinkage long sysn32_semctl(int semid, int semnum, int cmd, u32 arg)
 {
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S
index 656bde2e11b1..28c2e2e6af73 100644
--- a/arch/mips/kernel/r2300_switch.S
+++ b/arch/mips/kernel/r2300_switch.S
@@ -49,8 +49,7 @@ LEAF(resume)
 #ifndef CONFIG_CPU_HAS_LLSC
        sw      zero, ll_bit
 #endif
-        mfc0    t1, CP0_STATUS
+        mfc0    t2, CP0_STATUS
-        sw      t1, THREAD_STATUS(a0)
        cpu_save_nonscratch a0
        sw      ra, THREAD_REG31(a0)
@@ -60,8 +59,8 @@ LEAF(resume)
        lw      t3, TASK_THREAD_INFO(a0)
        lw      t0, TI_FLAGS(t3)
        li      t1, _TIF_USEDFPU
-        and     t2, t0, t1
+        and     t1, t0
-        beqz    t2, 1f
+        beqz    t1, 1f
        nor     t1, zero, t1
        and     t0, t0, t1
@@ -74,10 +73,13 @@ LEAF(resume)
        li      t1, ~ST0_CU1
        and     t0, t0, t1
        sw      t0, ST_OFF(t3)
+        /* clear thread_struct CU1 bit */
+        and     t2, t1
        fpu_save_single a0, t0                  # clobbers t0
 1:
+        sw      t2, THREAD_STATUS(a0)
        /*
         * The order of restoring the registers takes care of the race
         * updating $28, $29 and kernelsp without disabling ints.
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 59c1577ecbb3..dbd42adc52ed 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -114,14 +114,6 @@ LEAF(_save_fp_context32)
 */
 LEAF(_restore_fp_context)
        EX      lw t0, SC_FPC_CSR(a0)
-        /* Fail if the CSR has exceptions pending */
-        srl     t1, t0, 5
-        and     t1, t0
-        andi    t1, 0x1f << 7
-        bnez    t1, fault
-         nop
 #ifdef CONFIG_64BIT
        EX      ldc1 $f1, SC_FPREGS+8(a0)
        EX      ldc1 $f3, SC_FPREGS+24(a0)
@@ -165,14 +157,6 @@ LEAF(_restore_fp_context)
 LEAF(_restore_fp_context32)
        /* Restore an o32 sigcontext.  */
        EX      lw t0, SC32_FPC_CSR(a0)
-        /* Fail if the CSR has exceptions pending */
-        srl     t1, t0, 5
-        and     t1, t0
-        andi    t1, 0x1f << 7
-        bnez    t1, fault
-         nop
        EX      ldc1 $f0, SC32_FPREGS+0(a0)
        EX      ldc1 $f2, SC32_FPREGS+16(a0)
        EX      ldc1 $f4, SC32_FPREGS+32(a0)
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index cc566cf12246..c7698fd9955c 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -48,8 +48,7 @@
 #ifndef CONFIG_CPU_HAS_LLSC
        sw      zero, ll_bit
 #endif
-        mfc0    t1, CP0_STATUS
+        mfc0    t2, CP0_STATUS
-        LONG_S  t1, THREAD_STATUS(a0)
        cpu_save_nonscratch a0
        LONG_S  ra, THREAD_REG31(a0)
@@ -59,8 +58,8 @@
        PTR_L   t3, TASK_THREAD_INFO(a0)
        LONG_L  t0, TI_FLAGS(t3)
        li      t1, _TIF_USEDFPU
-        and     t2, t0, t1
+        and     t1, t0
-        beqz    t2, 1f
+        beqz    t1, 1f
        nor     t1, zero, t1
        and     t0, t0, t1
@@ -73,10 +72,13 @@
        li      t1, ~ST0_CU1
        and     t0, t0, t1
        LONG_S  t0, ST_OFF(t3)
+        /* clear thread_struct CU1 bit */
+        and     t2, t1
        fpu_save_double a0 t0 t1                # c0_status passed in t0
                                                # clobbers t1
 1:
+        LONG_S  t2, THREAD_STATUS(a0)
        /*
         * The order of restoring the registers takes care of the race
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index e14ae09eda2b..e6e3047151a6 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -54,6 +54,7 @@ static struct chan_waitqueues {
        wait_queue_head_t rt_queue;
        wait_queue_head_t lx_queue;
        atomic_t in_open;
+        struct mutex mutex;
 } channel_wqs[RTLX_CHANNELS];
 static struct irqaction irq;
@@ -146,7 +147,7 @@ static void stopping(int vpe)
 int rtlx_open(int index, int can_sleep)
 {
-        volatile struct rtlx_info **p;
+        struct rtlx_info **p;
        struct rtlx_channel *chan;
        enum rtlx_state state;
        int ret = 0;
@@ -179,13 +180,24 @@ int rtlx_open(int index, int can_sleep)
                        }
                }
+                smp_rmb();
                if (*p == NULL) {
                        if (can_sleep) {
-                                __wait_event_interruptible(channel_wqs[index].lx_queue,
+                                DEFINE_WAIT(wait);
-                                                           *p != NULL,
-                                                           ret);
+                                for (;;) {
-                                if (ret)
+                                        prepare_to_wait(&channel_wqs[index].lx_queue, &wait, TASK_INTERRUPTIBLE);
+                                        smp_rmb();
+                                        if (*p != NULL)
+                                                break;
+                                        if (!signal_pending(current)) {
+                                                schedule();
+                                                continue;
+                                        }
+                                        ret = -ERESTARTSYS;
                                        goto out_fail;
+                                }
+                                finish_wait(&channel_wqs[index].lx_queue, &wait);
                        } else {
                                printk(" *vpe_get_shared is NULL. "
                                       "Has an SP program been loaded?\n");
@@ -277,56 +289,52 @@ unsigned int rtlx_write_poll(int index)
        return write_spacefree(chan->rt_read, chan->rt_write, chan->buffer_size);
 }
-static inline void copy_to(void *dst, void *src, size_t count, int user)
+ssize_t rtlx_read(int index, void __user *buff, size_t count, int user)
-{
-        if (user)
-                copy_to_user(dst, src, count);
-        else
-                memcpy(dst, src, count);
-}
-static inline void copy_from(void *dst, void *src, size_t count, int user)
 {
-        if (user)
+        size_t lx_write, fl = 0L;
-                copy_from_user(dst, src, count);
-        else
-                memcpy(dst, src, count);
-}
-ssize_t rtlx_read(int index, void *buff, size_t count, int user)
-{
-        size_t fl = 0L;
        struct rtlx_channel *lx;
+        unsigned long failed;
        if (rtlx == NULL)
                return -ENOSYS;
        lx = &rtlx->channel[index];
+        mutex_lock(&channel_wqs[index].mutex);
+        smp_rmb();
+        lx_write = lx->lx_write;
        /* find out how much in total */
        count = min(count,
-                     (size_t)(lx->lx_write + lx->buffer_size - lx->lx_read)
+                     (size_t)(lx_write + lx->buffer_size - lx->lx_read)
                     % lx->buffer_size);
        /* then how much from the read pointer onwards */
-        fl = min( count, (size_t)lx->buffer_size - lx->lx_read);
+        fl = min(count, (size_t)lx->buffer_size - lx->lx_read);
-        copy_to(buff, &lx->lx_buffer[lx->lx_read], fl, user);
+        failed = copy_to_user(buff, lx->lx_buffer + lx->lx_read, fl);
+        if (failed)
+                goto out;
        /* and if there is anything left at the beginning of the buffer */
-        if ( count - fl )
+        if (count - fl)
-                copy_to (buff + fl, lx->lx_buffer, count - fl, user);
+                failed = copy_to_user(buff + fl, lx->lx_buffer, count - fl);
-        /* update the index */
+out:
-        lx->lx_read += count;
+        count -= failed;
-        lx->lx_read %= lx->buffer_size;
+        smp_wmb();
+        lx->lx_read = (lx->lx_read + count) % lx->buffer_size;
+        smp_wmb();
+        mutex_unlock(&channel_wqs[index].mutex);
        return count;
 }
-ssize_t rtlx_write(int index, void *buffer, size_t count, int user)
+ssize_t rtlx_write(int index, const void __user *buffer, size_t count, int user)
 {
        struct rtlx_channel *rt;
+        size_t rt_read;
        size_t fl;
        if (rtlx == NULL)
@@ -334,24 +342,35 @@ ssize_t rtlx_write(int index, void *buffer, size_t count, int user)
        rt = &rtlx->channel[index];
+        mutex_lock(&channel_wqs[index].mutex);
+        smp_rmb();
+        rt_read = rt->rt_read;
        /* total number of bytes to copy */
        count = min(count,
-                    (size_t)write_spacefree(rt->rt_read, rt->rt_write,
+                    (size_t)write_spacefree(rt_read, rt->rt_write, rt->buffer_size));
-                                            rt->buffer_size));
        /* first bit from write pointer to the end of the buffer, or count */
        fl = min(count, (size_t) rt->buffer_size - rt->rt_write);
-        copy_from (&rt->rt_buffer[rt->rt_write], buffer, fl, user);
+        failed = copy_from_user(rt->rt_buffer + rt->rt_write, buffer, fl);
+        if (failed)
+                goto out;
        /* if there's any left copy to the beginning of the buffer */
-        if( count - fl )
+        if (count - fl) {
-                copy_from (rt->rt_buffer, buffer + fl, count - fl, user);
+                failed = copy_from_user(rt->rt_buffer, buffer + fl, count - fl);
+        }
+out:
+        count -= cailed;
-        rt->rt_write += count;
+        smp_wmb();
-        rt->rt_write %= rt->buffer_size;
+        rt->rt_write = (rt->rt_write + count) % rt->buffer_size;
+        smp_wmb();
+        mutex_unlock(&channel_wqs[index].mutex);
-        return(count);
+        return count;
 }
@@ -403,7 +422,7 @@ static ssize_t file_read(struct file *file, char __user * buffer, size_t count,
                return 0;       // -EAGAIN makes cat whinge
        }
-        return rtlx_read(minor, buffer, count, 1);
+        return rtlx_read(minor, buffer, count);
 }
 static ssize_t file_write(struct file *file, const char __user * buffer,
@@ -429,7 +448,7 @@ static ssize_t file_write(struct file *file, const char __user * buffer,
                        return ret;
        }
-        return rtlx_write(minor, (void *)buffer, count, 1);
+        return rtlx_write(minor, buffer, count);
 }
 static const struct file_operations rtlx_fops = {
@@ -468,6 +487,7 @@ static int rtlx_module_init(void)
                init_waitqueue_head(&channel_wqs[i].rt_queue);
                init_waitqueue_head(&channel_wqs[i].lx_queue);
                atomic_set(&channel_wqs[i].in_open, 0);
+                mutex_init(&channel_wqs[i].mutex);
                dev = device_create(mt_class, NULL, MKDEV(major, i),
                                    "%s%d", module_name, i);
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index fdbdbdc65b54..297dfcb97524 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,4 +31,7 @@ extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
 */
 extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
+/* Check and clear pending FPU exceptions in saved CSR */
+extern int fpcsr_pending(unsigned int __user *fpcsr);
 #endif  /* __SIGNAL_COMMON_H */
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index f091786187a6..8c3c5a5789b0 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -82,6 +82,7 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 {
        int err = 0;
        int i;
+        unsigned int used_math;
        err |= __put_user(regs->cp0_epc, &sc->sc_pc);
@@ -104,26 +105,53 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
                err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
        }
-        err |= __put_user(!!used_math(), &sc->sc_used_math);
+        used_math = !!used_math();
+        err |= __put_user(used_math, &sc->sc_used_math);
-        if (used_math()) {
+        if (used_math) {
                /*
                 * Save FPU state to signal context. Signal handler
                 * will "inherit" current FPU state.
                 */
-                preempt_disable();
+                own_fpu(1);
+                enable_fp_in_kernel();
-                if (!is_fpu_owner()) {
-                        own_fpu();
-                        restore_fp(current);
-                }
                err |= save_fp_context(sc);
+                disable_fp_in_kernel();
-                preempt_enable();
        }
        return err;
 }
+int fpcsr_pending(unsigned int __user *fpcsr)
+{
+        int err, sig = 0;
+        unsigned int csr, enabled;
+        err = __get_user(csr, fpcsr);
+        enabled = FPU_CSR_UNI_X | ((csr & FPU_CSR_ALL_E) << 5);
+        /*
+         * If the signal handler set some FPU exceptions, clear it and
+         * send SIGFPE.
+         */
+        if (csr & enabled) {
+                csr &= ~enabled;
+                err |= __put_user(csr, fpcsr);
+                sig = SIGFPE;
+        }
+        return err ?: sig;
+}
+static int
+check_and_restore_fp_context(struct sigcontext __user *sc)
+{
+        int err, sig;
+        err = sig = fpcsr_pending(&sc->sc_fpc_csr);
+        if (err > 0)
+                err = 0;
+        err |= restore_fp_context(sc);
+        return err ?: sig;
+}
 int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 {
        unsigned int used_math;
@@ -157,19 +185,18 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
        err |= __get_user(used_math, &sc->sc_used_math);
        conditional_used_math(used_math);
-        preempt_disable();
+        if (used_math) {
-        if (used_math()) {
                /* restore fpu context if we have used it before */
-                own_fpu();
+                own_fpu(0);
-                err |= restore_fp_context(sc);
+                enable_fp_in_kernel();
+                if (!err)
+                        err = check_and_restore_fp_context(sc);
+                disable_fp_in_kernel();
        } else {
                /* signal handler may have used FPU.  Give it up. */
-                lose_fpu();
+                lose_fpu(0);
        }
-        preempt_enable();
        return err;
 }
@@ -332,6 +359,7 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
        struct sigframe __user *frame;
        sigset_t blocked;
+        int sig;
        frame = (struct sigframe __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -345,8 +373,11 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs)
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
-        if (restore_sigcontext(&regs, &frame->sf_sc))
+        sig = restore_sigcontext(&regs, &frame->sf_sc);
+        if (sig < 0)
                goto badframe;
+        else if (sig)
+                force_sig(sig, current);
        /*
         * Don't let your children do this ...
@@ -368,6 +399,7 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        struct rt_sigframe __user *frame;
        sigset_t set;
        stack_t st;
+        int sig;
        frame = (struct rt_sigframe __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -381,8 +413,11 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
-        if (restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext))
+        sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
+        if (sig < 0)
                goto badframe;
+        else if (sig)
+                force_sig(sig, current);
        if (__copy_from_user(&st, &frame->rs_uc.uc_stack, sizeof(st)))
                goto badframe;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 19bbef001959..151fd2f0893a 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -181,6 +181,7 @@ static int setup_sigcontext32(struct pt_regs *regs,
 {
        int err = 0;
        int i;
+        u32 used_math;
        err |= __put_user(regs->cp0_epc, &sc->sc_pc);
@@ -200,26 +201,34 @@ static int setup_sigcontext32(struct pt_regs *regs,
                err |= __put_user(mflo3(), &sc->sc_lo3);
        }
-        err |= __put_user(!!used_math(), &sc->sc_used_math);
+        used_math = !!used_math();
+        err |= __put_user(used_math, &sc->sc_used_math);
-        if (used_math()) {
+        if (used_math) {
                /*
                 * Save FPU state to signal context.  Signal handler
                 * will "inherit" current FPU state.
                 */
-                preempt_disable();
+                own_fpu(1);
+                enable_fp_in_kernel();
-                if (!is_fpu_owner()) {
-                        own_fpu();
-                        restore_fp(current);
-                }
                err |= save_fp_context32(sc);
+                disable_fp_in_kernel();
-                preempt_enable();
        }
        return err;
 }
+static int
+check_and_restore_fp_context32(struct sigcontext32 __user *sc)
+{
+        int err, sig;
+        err = sig = fpcsr_pending(&sc->sc_fpc_csr);
+        if (err > 0)
+                err = 0;
+        err |= restore_fp_context32(sc);
+        return err ?: sig;
+}
 static int restore_sigcontext32(struct pt_regs *regs,
                                struct sigcontext32 __user *sc)
 {
@@ -250,19 +259,18 @@ static int restore_sigcontext32(struct pt_regs *regs,
        err |= __get_user(used_math, &sc->sc_used_math);
        conditional_used_math(used_math);
-        preempt_disable();
+        if (used_math) {
-        if (used_math()) {
                /* restore fpu context if we have used it before */
-                own_fpu();
+                own_fpu(0);
-                err |= restore_fp_context32(sc);
+                enable_fp_in_kernel();
+                if (!err)
+                        err = check_and_restore_fp_context32(sc);
+                disable_fp_in_kernel();
        } else {
                /* signal handler may have used FPU.  Give it up. */
-                lose_fpu();
+                lose_fpu(0);
        }
-        preempt_enable();
        return err;
 }
@@ -508,6 +516,7 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
        struct sigframe32 __user *frame;
        sigset_t blocked;
+        int sig;
        frame = (struct sigframe32 __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -521,8 +530,11 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs)
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
-        if (restore_sigcontext32(&regs, &frame->sf_sc))
+        sig = restore_sigcontext32(&regs, &frame->sf_sc);
+        if (sig < 0)
                goto badframe;
+        else if (sig)
+                force_sig(sig, current);
        /*
         * Don't let your children do this ...
@@ -545,6 +557,7 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        sigset_t set;
        stack_t st;
        s32 sp;
+        int sig;
        frame = (struct rt_sigframe32 __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -558,8 +571,11 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
-        if (restore_sigcontext32(&regs, &frame->rs_uc.uc_mcontext))
+        sig = restore_sigcontext32(&regs, &frame->rs_uc.uc_mcontext);
+        if (sig < 0)
                goto badframe;
+        else if (sig)
+                force_sig(sig, current);
        /* The ucontext contains a stack32_t, so we must convert!  */
        if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index ecf1f7ecaad9..a9202fa95987 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -127,6 +127,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        sigset_t set;
        stack_t st;
        s32 sp;
+        int sig;
        frame = (struct rt_sigframe_n32 __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
@@ -140,8 +141,11 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        recalc_sigpending();
        spin_unlock_irq(&current->sighand->siglock);
-        if (restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext))
+        sig = restore_sigcontext(&regs, &frame->rs_uc.uc_mcontext);
+        if (sig < 0)
                goto badframe;
+        else if (sig)
+                force_sig(sig, current);
        /* The ucontext contains a stack32_t, so we must convert!  */
        if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 18f56a9dbcfa..7d76a85422b2 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -610,16 +610,6 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
        if (fcr31 & FPU_CSR_UNI_X) {
                int sig;
-                preempt_disable();
-#ifdef CONFIG_PREEMPT
-                if (!is_fpu_owner()) {
-                        /* We might lose fpu before disabling preempt... */
-                        own_fpu();
-                        BUG_ON(!used_math());
-                        restore_fp(current);
-                }
-#endif
                /*
                 * Unimplemented operation exception.  If we've got the full
                 * software emulator on-board, let's use it...
@@ -630,18 +620,12 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
                 * register operands before invoking the emulator, which seems
                 * a bit extreme for what should be an infrequent event.
                 */
-                save_fp(current);
                /* Ensure 'resume' not overwrite saved fp context again. */
-                lose_fpu();
+                lose_fpu(1);
-                preempt_enable();
                /* Run the emulator */
                sig = fpu_emulator_cop1Handler (regs, &current->thread.fpu, 1);
-                preempt_disable();
-                own_fpu();      /* Using the FPU again.  */
                /*
                 * We can't allow the emulated instruction to leave any of
                 * the cause bit set in $fcr31.
@@ -649,9 +633,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
                current->thread.fpu.fcr31 &= ~FPU_CSR_ALL_X;
                /* Restore the hardware register state */
-                restore_fp(current);
+                own_fpu(1);     /* Using the FPU again.  */
-                preempt_enable();
                /* If something went wrong, signal */
                if (sig)
@@ -775,12 +757,11 @@ asmlinkage void do_cpu(struct pt_regs *regs)
 {
        unsigned int cpid;
-        die_if_kernel("do_cpu invoked from kernel context!", regs);
        cpid = (regs->cp0_cause >> CAUSEB_CE) & 3;
        switch (cpid) {
        case 0:
+                die_if_kernel("do_cpu invoked from kernel context!", regs);
                if (!cpu_has_llsc)
                        if (!simulate_llsc(regs))
                                return;
@@ -791,21 +772,30 @@ asmlinkage void do_cpu(struct pt_regs *regs)
                break;
        case 1:
-                preempt_disable();
+                if (!test_thread_flag(TIF_ALLOW_FP_IN_KERNEL))
+                        die_if_kernel("do_cpu invoked from kernel context!",
-                own_fpu();
+                                      regs);
-                if (used_math()) {      /* Using the FPU again.  */
+                if (used_math())        /* Using the FPU again.  */
-                        restore_fp(current);
+                        own_fpu(1);
-                } else {                        /* First time FPU user.  */
+                else {                  /* First time FPU user.  */
                        init_fpu();
                        set_used_math();
                }
-                if (cpu_has_fpu) {
+                if (raw_cpu_has_fpu) {
-                        preempt_enable();
+                        if (test_thread_flag(TIF_ALLOW_FP_IN_KERNEL)) {
+                                local_irq_disable();
+                                if (cpu_has_fpu)
+                                        regs->cp0_status |= ST0_CU1;
+                                /*
+                                 * We must return without enabling
+                                 * interrupts to ensure keep FPU
+                                 * ownership until resume.
+                                 */
+                                return;
+                        }
                } else {
                        int sig;
-                        preempt_enable();
                        sig = fpu_emulator_cop1Handler(regs,
                                                &current->thread.fpu, 0);
                        if (sig)
@@ -1259,26 +1249,26 @@ static inline void mips_srs_init(void)
 /*
 * This is used by native signal handling
 */
-asmlinkage int (*save_fp_context)(struct sigcontext *sc);
+asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
-asmlinkage int (*restore_fp_context)(struct sigcontext *sc);
+asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
-extern asmlinkage int _save_fp_context(struct sigcontext *sc);
+extern asmlinkage int _save_fp_context(struct sigcontext __user *sc);
-extern asmlinkage int _restore_fp_context(struct sigcontext *sc);
+extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc);
-extern asmlinkage int fpu_emulator_save_context(struct sigcontext *sc);
+extern asmlinkage int fpu_emulator_save_context(struct sigcontext __user *sc);
-extern asmlinkage int fpu_emulator_restore_context(struct sigcontext *sc);
+extern asmlinkage int fpu_emulator_restore_context(struct sigcontext __user *sc);
 #ifdef CONFIG_SMP
-static int smp_save_fp_context(struct sigcontext *sc)
+static int smp_save_fp_context(struct sigcontext __user *sc)
 {
-        return cpu_has_fpu
+        return raw_cpu_has_fpu
               ? _save_fp_context(sc)
               : fpu_emulator_save_context(sc);
 }
-static int smp_restore_fp_context(struct sigcontext *sc)
+static int smp_restore_fp_context(struct sigcontext __user *sc)
 {
-        return cpu_has_fpu
+        return raw_cpu_has_fpu
               ? _restore_fp_context(sc)
               : fpu_emulator_restore_context(sc);
 }
@@ -1306,14 +1296,14 @@ static inline void signal_init(void)
 /*
 * This is used by 32-bit signal stuff on the 64-bit kernel
 */
-asmlinkage int (*save_fp_context32)(struct sigcontext32 *sc);
+asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
-asmlinkage int (*restore_fp_context32)(struct sigcontext32 *sc);
+asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
-extern asmlinkage int _save_fp_context32(struct sigcontext32 *sc);
+extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int _restore_fp_context32(struct sigcontext32 *sc);
+extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 *sc);
+extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 __user *sc);
-extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 *sc);
+extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 __user *sc);
 static inline void signal32_init(void)
 {
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 5b3390f64917..ed49ef01ac53 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -51,7 +51,7 @@ void fpu_emulator_init_fpu(void)
 * with appropriate macros from uaccess.h
 */
-int fpu_emulator_save_context(struct sigcontext *sc)
+int fpu_emulator_save_context(struct sigcontext __user *sc)
 {
        int i;
        int err = 0;
@@ -65,7 +65,7 @@ int fpu_emulator_save_context(struct sigcontext *sc)
        return err;
 }
-int fpu_emulator_restore_context(struct sigcontext *sc)
+int fpu_emulator_restore_context(struct sigcontext __user *sc)
 {
        int i;
        int err = 0;
@@ -84,7 +84,7 @@ int fpu_emulator_restore_context(struct sigcontext *sc)
 * This is the o32 version
 */
-int fpu_emulator_save_context32(struct sigcontext32 *sc)
+int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
 {
        int i;
        int err = 0;
@@ -98,7 +98,7 @@ int fpu_emulator_save_context32(struct sigcontext32 *sc)
        return err;
 }
-int fpu_emulator_restore_context32(struct sigcontext32 *sc)
+int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
 {
        int i;
        int err = 0;
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 9d08608aaa51..69a8bcfe72b2 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -74,13 +74,13 @@ static inline void w_c0_ ## r ## n(unsigned int value)			\
 __define_perf_accessors(perfcntr, 0, 2)
 __define_perf_accessors(perfcntr, 1, 3)
-__define_perf_accessors(perfcntr, 2, 2)
+__define_perf_accessors(perfcntr, 2, 0)
-__define_perf_accessors(perfcntr, 3, 2)
+__define_perf_accessors(perfcntr, 3, 1)
 __define_perf_accessors(perfctrl, 0, 2)
 __define_perf_accessors(perfctrl, 1, 3)
-__define_perf_accessors(perfctrl, 2, 2)
+__define_perf_accessors(perfctrl, 2, 0)
-__define_perf_accessors(perfctrl, 3, 2)
+__define_perf_accessors(perfctrl, 3, 1)
 struct op_mips_model op_model_mipsxx_ops;
@@ -97,7 +97,6 @@ static void mipsxx_reg_setup(struct op_counter_config *ctr)
        int i;
        /* Compute the performance counter control word.  */
-        /* For now count kernel and user mode */
        for (i = 0; i < counters; i++) {
                reg.control[i] = 0;
                reg.counter[i] = 0;
@@ -234,9 +233,6 @@ static inline int n_counters(void)
                counters = __n_counters();
        }
-#ifdef CONFIG_MIPS_MT_SMP
-        counters >> 1;
-#endif
        return counters;
 }
@@ -270,6 +266,10 @@ static int __init mipsxx_init(void)
        reset_counters(counters);
+#ifdef CONFIG_MIPS_MT_SMP
+        counters >>= 1;
+#endif
        op_model_mipsxx_ops.num_counters = counters;
        switch (current_cpu_data.cputype) {
        case CPU_20KC:
@@ -326,7 +326,11 @@ static int __init mipsxx_init(void)
 static void mipsxx_exit(void)
 {
-        reset_counters(op_model_mipsxx_ops.num_counters);
+        int counters = op_model_mipsxx_ops.num_counters;
+#ifdef CONFIG_MIPS_MT_SMP
+        counters <<= 1;
+#endif
+        reset_counters(counters);
        perf_irq = null_perf_irq;
 }
diff --git a/arch/mips/philips/pnx8550/common/int.c b/arch/mips/philips/pnx8550/common/int.c
index d48665ebd33c..b1c4805a0b92 100644
--- a/arch/mips/philips/pnx8550/common/int.c
+++ b/arch/mips/philips/pnx8550/common/int.c
@@ -204,19 +204,7 @@ void __init arch_init_irq(void)
                 * Note, PCI INTA is active low on the bus, but inverted
                 * in the GIC, so to us it's active high.
                 */
-#ifdef CONFIG_PNX8550_V2PCI
+                PNX8550_GIC_REQ(i - PNX8550_INT_GIC_MIN) = 0x1E000000;
-                if (gic_int_line == (PNX8550_INT_GPIO0 - PNX8550_INT_GIC_MIN)) {
-                        /* PCI INT through gpio 8, which is setup in
-                         * pnx8550_setup.c and routed to GPIO
-                         * Interrupt Level 0 (GPIO Connection 58).
-                         * Set it active low. */
-                        PNX8550_GIC_REQ(gic_int_line) = 0x1E020000;
-                } else
-#endif
-                {
-                        PNX8550_GIC_REQ(i - PNX8550_INT_GIC_MIN) = 0x1E000000;
-                }
                /* mask/priority is still 0 so we will not get any
                 * interrupts until it is unmasked */
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index 24367319ce24..cf7e316ad4f6 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-rc5
+# Linux kernel version: 2.6.21-rc3
-# Mon Jan 22 22:12:56 2007
+# Fri Mar  9 23:34:53 2007
 #
 CONFIG_PPC64=y
 CONFIG_64BIT=y
@@ -61,6 +61,7 @@ CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
 # CONFIG_POSIX_MQUEUE is not set
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
@@ -71,6 +72,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_CPUSETS=y
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
@@ -133,6 +135,7 @@ CONFIG_PPC_MULTIPLATFORM=y
 # CONFIG_PPC_PSERIES is not set
 # CONFIG_PPC_ISERIES is not set
 # CONFIG_PPC_MPC52xx is not set
+# CONFIG_PPC_MPC5200 is not set
 # CONFIG_PPC_PMAC is not set
 # CONFIG_PPC_MAPLE is not set
 # CONFIG_PPC_PASEMI is not set
@@ -140,8 +143,10 @@ CONFIG_PPC_CELL=y
 CONFIG_PPC_CELL_NATIVE=y
 CONFIG_PPC_IBM_CELL_BLADE=y
 CONFIG_PPC_PS3=y
+CONFIG_PPC_CELLEB=y
 CONFIG_PPC_NATIVE=y
 CONFIG_UDBG_RTAS_CONSOLE=y
+CONFIG_PPC_UDBG_BEAT=y
 # CONFIG_U3_DART is not set
 CONFIG_PPC_RTAS=y
 # CONFIG_RTAS_ERROR_LOGGING is not set
@@ -181,10 +186,13 @@ CONFIG_CBE_CPUFREQ=m
 #
 # PS3 Platform Options
 #
+# CONFIG_PS3_ADVANCED is not set
 CONFIG_PS3_HTAB_SIZE=20
 # CONFIG_PS3_DYNAMIC_DMA is not set
 CONFIG_PS3_USE_LPAR_ADDR=y
 CONFIG_PS3_VUART=y
+CONFIG_PS3_PS3AV=y
+CONFIG_PS3_SYS_MANAGER=y
 #
 # Kernel options
@@ -226,6 +234,7 @@ CONFIG_MEMORY_HOTPLUG_SPARSE=y
 CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_MIGRATION=y
 CONFIG_RESOURCES_64BIT=y
+CONFIG_ZONE_DMA_FLAG=1
 CONFIG_ARCH_MEMORY_PROBE=y
 CONFIG_NODES_SPAN_OTHER_NODES=y
 CONFIG_PPC_64K_PAGES=y
@@ -239,6 +248,7 @@ CONFIG_ISA_DMA_API=y
 #
 # Bus options
 #
+CONFIG_ZONE_DMA=y
 CONFIG_GENERIC_ISA_DMA=y
 # CONFIG_MPIC_WEIRD is not set
 # CONFIG_PPC_I8259 is not set
@@ -274,6 +284,7 @@ CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
 # CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_MIGRATE is not set
 # CONFIG_NET_KEY is not set
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
@@ -340,6 +351,7 @@ CONFIG_NETFILTER_XT_TARGET_DSCP=m
 CONFIG_NETFILTER_XT_TARGET_MARK=m
 CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
 CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_COMMENT=m
 CONFIG_NETFILTER_XT_MATCH_DCCP=m
 CONFIG_NETFILTER_XT_MATCH_DSCP=m
@@ -376,7 +388,6 @@ CONFIG_IP_NF_FILTER=m
 CONFIG_IP_NF_TARGET_REJECT=m
 CONFIG_IP_NF_TARGET_LOG=m
 CONFIG_IP_NF_TARGET_ULOG=m
-CONFIG_IP_NF_TARGET_TCPMSS=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_TOS=m
 CONFIG_IP_NF_TARGET_ECN=m
@@ -444,6 +455,7 @@ CONFIG_STANDALONE=y
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_FW_LOADER=y
 # CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
 # CONFIG_SYS_HYPERVISOR is not set
 #
@@ -464,6 +476,7 @@ CONFIG_FW_LOADER=y
 #
 # Plug and Play support
 #
+# CONFIG_PNPACPI is not set
 #
 # Block devices
@@ -483,7 +496,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=131072
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
@@ -537,6 +549,7 @@ CONFIG_BLK_DEV_AEC62XX=y
 # CONFIG_BLK_DEV_JMICRON is not set
 # CONFIG_BLK_DEV_SC1200 is not set
 # CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_IT8213 is not set
 # CONFIG_BLK_DEV_IT821X is not set
 # CONFIG_BLK_DEV_NS87415 is not set
 # CONFIG_BLK_DEV_PDC202XX_OLD is not set
@@ -547,6 +560,8 @@ CONFIG_BLK_DEV_SIIMAGE=y
 # CONFIG_BLK_DEV_SLC90E66 is not set
 # CONFIG_BLK_DEV_TRM290 is not set
 # CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
+CONFIG_BLK_DEV_IDE_CELLEB=y
 # CONFIG_IDE_ARM is not set
 CONFIG_BLK_DEV_IDEDMA=y
 # CONFIG_IDEDMA_IVB is not set
@@ -557,7 +572,7 @@ CONFIG_IDEDMA_AUTO=y
 # SCSI device support
 #
 # CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=m
+CONFIG_SCSI=y
 # CONFIG_SCSI_TGT is not set
 # CONFIG_SCSI_NETLINK is not set
 CONFIG_SCSI_PROC_FS=y
@@ -565,12 +580,12 @@ CONFIG_SCSI_PROC_FS=y
 #
 # SCSI support type (disk, tape, CD-ROM)
 #
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
 # CONFIG_CHR_DEV_ST is not set
 # CONFIG_CHR_DEV_OSST is not set
 CONFIG_BLK_DEV_SR=m
 # CONFIG_BLK_DEV_SR_VENDOR is not set
-CONFIG_CHR_DEV_SG=m
+CONFIG_CHR_DEV_SG=y
 # CONFIG_CHR_DEV_SCH is not set
 #
@@ -587,7 +602,7 @@ CONFIG_CHR_DEV_SG=m
 # CONFIG_SCSI_SPI_ATTRS is not set
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
-# CONFIG_SCSI_SAS_ATTRS is not set
+CONFIG_SCSI_SAS_ATTRS=y
 # CONFIG_SCSI_SAS_LIBSAS is not set
 #
@@ -617,6 +632,7 @@ CONFIG_CHR_DEV_SG=m
 # CONFIG_SCSI_INIA100 is not set
 # CONFIG_SCSI_STEX is not set
 # CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_IPR is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
 # CONFIG_SCSI_QLA_FC is not set
 # CONFIG_SCSI_QLA_ISCSI is not set
@@ -629,7 +645,60 @@ CONFIG_CHR_DEV_SG=m
 #
 # Serial ATA (prod) and Parallel ATA (experimental) drivers
 #
-# CONFIG_ATA is not set
+CONFIG_ATA=y
+# CONFIG_ATA_NONSTANDARD is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_SVW is not set
+# CONFIG_ATA_PIIX is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_SATA_QSTOR is not set
+CONFIG_SATA_PROMISE=y
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIL24 is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SERVERWORKS is not set
+CONFIG_PATA_PDC2027X=m
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_SCC is not set
 #
 # Multi-device support (RAID and LVM)
@@ -655,10 +724,12 @@ CONFIG_DM_MULTIPATH=m
 #
 # Fusion MPT device support
 #
-# CONFIG_FUSION is not set
+CONFIG_FUSION=y
 # CONFIG_FUSION_SPI is not set
 # CONFIG_FUSION_FC is not set
-# CONFIG_FUSION_SAS is not set
+CONFIG_FUSION_SAS=y
+CONFIG_FUSION_MAX_SGE=128
+# CONFIG_FUSION_CTL is not set
 #
 # IEEE 1394 (FireWire) support
@@ -732,15 +803,18 @@ CONFIG_TIGON3=y
 # CONFIG_BNX2 is not set
 CONFIG_SPIDER_NET=y
 # CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
 #
 # Ethernet (10000 Mbit)
 #
 # CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
 # CONFIG_NETXEN_NIC is not set
+# CONFIG_PASEMI_MAC is not set
 #
 # Token Ring devices
@@ -853,16 +927,27 @@ CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 #
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_TXX9=y
+CONFIG_HAS_TXX9_SERIAL=y
+CONFIG_SERIAL_TXX9_NR_UARTS=2
+CONFIG_SERIAL_TXX9_CONSOLE=y
 # CONFIG_SERIAL_JSM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_HVC_DRIVER=y
 CONFIG_HVC_RTAS=y
+# CONFIG_HVC_BEAT is not set
 #
 # IPMI
 #
-# CONFIG_IPMI_HANDLER is not set
+CONFIG_IPMI_HANDLER=m
+# CONFIG_IPMI_PANIC_EVENT is not set
+CONFIG_IPMI_DEVICE_INTERFACE=m
+CONFIG_IPMI_SI=m
+CONFIG_IPMI_WATCHDOG=m
+CONFIG_IPMI_POWEROFF=m
 #
 # Watchdog Cards
@@ -874,7 +959,7 @@ CONFIG_WATCHDOG=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_WATCHDOG_RTAS=y
+# CONFIG_WATCHDOG_RTAS is not set
 #
 # PCI-based Watchdog Cards
@@ -929,6 +1014,7 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PASEMI is not set
 # CONFIG_I2C_PROSAVAGE is not set
 # CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIS5595 is not set
@@ -973,6 +1059,11 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_HWMON_VID is not set
 #
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -986,7 +1077,7 @@ CONFIG_I2C_ALGOBIT=y
 #
 # Graphics support
 #
-CONFIG_FIRMWARE_EDID=y
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 # CONFIG_FB is not set
 # CONFIG_FB_IBM_GXT4500 is not set
@@ -995,7 +1086,6 @@ CONFIG_FIRMWARE_EDID=y
 #
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_DUMMY_CONSOLE=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 #
 # Sound
@@ -1006,6 +1096,7 @@ CONFIG_DUMMY_CONSOLE=y
 # HID Devices
 #
 CONFIG_HID=m
+# CONFIG_HID_DEBUG is not set
 #
 # USB support
@@ -1020,9 +1111,7 @@ CONFIG_USB=m
 # Miscellaneous USB options
 #
 CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_BANDWIDTH is not set
 # CONFIG_USB_DYNAMIC_MINORS is not set
-# CONFIG_USB_MULTITHREAD_PROBE is not set
 # CONFIG_USB_OTG is not set
 #
@@ -1032,9 +1121,15 @@ CONFIG_USB_EHCI_HCD=m
 # CONFIG_USB_EHCI_SPLIT_ISO is not set
 # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
 # CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_BIG_ENDIAN_MMIO=y
 # CONFIG_USB_ISP116X_HCD is not set
 CONFIG_USB_OHCI_HCD=m
-# CONFIG_USB_OHCI_BIG_ENDIAN is not set
+CONFIG_USB_OHCI_HCD_PPC_OF=y
+CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
+# CONFIG_USB_OHCI_HCD_PPC_OF_LE is not set
+CONFIG_USB_OHCI_HCD_PCI=y
+CONFIG_USB_OHCI_BIG_ENDIAN_DESC=y
+CONFIG_USB_OHCI_BIG_ENDIAN_MMIO=y
 CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 # CONFIG_USB_UHCI_HCD is not set
 # CONFIG_USB_SL811_HCD is not set
@@ -1088,6 +1183,7 @@ CONFIG_USB_STORAGE=m
 # CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 # CONFIG_USB_APPLETOUCH is not set
+# CONFIG_USB_GTCO is not set
 #
 # USB Imaging devices
@@ -1125,6 +1221,7 @@ CONFIG_USB_MON=y
 # 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
@@ -1135,6 +1232,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
 # CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
 # CONFIG_USB_TEST is not set
 #
@@ -1175,6 +1273,7 @@ CONFIG_INFINIBAND_MTHCA=m
 CONFIG_INFINIBAND_MTHCA_DEBUG=y
 # CONFIG_INFINIBAND_AMSO1100 is not set
 CONFIG_INFINIBAND_IPOIB=m
+# CONFIG_INFINIBAND_IPOIB_CM is not set
 CONFIG_INFINIBAND_IPOIB_DEBUG=y
 CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=y
 # CONFIG_INFINIBAND_SRP is not set
@@ -1203,6 +1302,10 @@ CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=y
 #
 #
+# Auxiliary Display support
+#
+#
 # Virtualization
 #
@@ -1395,7 +1498,8 @@ CONFIG_TEXTSEARCH_KMP=m
 CONFIG_TEXTSEARCH_BM=m
 CONFIG_TEXTSEARCH_FSM=m
 CONFIG_PLIST=y
-CONFIG_IOMAP_COPY=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
 #
 # Instrumentation Support
@@ -1414,15 +1518,16 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
 CONFIG_LOG_BUF_SHIFT=15
-CONFIG_DETECT_SOFTLOCKUP=y
+# CONFIG_DETECT_SOFTLOCKUP is not set
 # CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_DEBUG_RWSEMS is not set
 CONFIG_DEBUG_SPINLOCK_SLEEP=y
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -1432,6 +1537,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_FORCED_INLINING is not set
 # CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
 # CONFIG_DEBUG_STACKOVERFLOW is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
 CONFIG_DEBUGGER=y
@@ -1469,8 +1575,10 @@ CONFIG_CRYPTO_SHA1=m
 # CONFIG_CRYPTO_GF128MUL is not set
 CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_PCBC=m
 # CONFIG_CRYPTO_LRW is not set
 CONFIG_CRYPTO_DES=m
+# CONFIG_CRYPTO_FCRYPT is not set
 # CONFIG_CRYPTO_BLOWFISH is not set
 # CONFIG_CRYPTO_TWOFISH is not set
 # CONFIG_CRYPTO_SERPENT is not set
@@ -1484,6 +1592,7 @@ CONFIG_CRYPTO_DES=m
 CONFIG_CRYPTO_DEFLATE=m
 # CONFIG_CRYPTO_MICHAEL_MIC is not set
 # CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
 # CONFIG_CRYPTO_TEST is not set
 #
diff --git a/arch/powerpc/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
index e738f93b42fe..a963f657222b 100644
--- a/arch/powerpc/kernel/udbg_16550.c
+++ b/arch/powerpc/kernel/udbg_16550.c
@@ -184,7 +184,7 @@ void udbg_pas_real_putc(char c)
 void udbg_init_pas_realmode(void)
 {
-        udbg_comport = (volatile struct NS16550 __iomem *)0xfcff03f8;
+        udbg_comport = (volatile struct NS16550 __iomem *)0xfcff03f8UL;
        udbg_putc = udbg_pas_real_putc;
        udbg_getc = NULL;
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index c0d2a694fa30..3c7fe2c65b5a 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -685,6 +685,9 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
                                       "non-cacheable mapping\n");
                                psize = mmu_vmalloc_psize = MMU_PAGE_4K;
                        }
+#ifdef CONFIG_SPE_BASE
+                        spu_flush_all_slbs(mm);
+#endif
                }
                if (user_region) {
                        if (psize != get_paca()->context.user_psize) {
@@ -759,6 +762,9 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
                                mmu_psize_defs[MMU_PAGE_4K].sllp;
                        get_paca()->context = mm->context;
                        slb_flush_and_rebolt();
+#ifdef CONFIG_SPE_BASE
+                        spu_flush_all_slbs(mm);
+#endif
                }
        }
        if (mm->context.user_psize == MMU_PAGE_64K)
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8c77c791f87e..f6ffaaa7a5bf 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -24,6 +24,7 @@
 #include <asm/machdep.h>
 #include <asm/cputable.h>
 #include <asm/tlb.h>
+#include <asm/spu.h>
 #include <linux/sysctl.h>
@@ -513,6 +514,9 @@ int prepare_hugepage_range(unsigned long addr, unsigned long len, pgoff_t pgoff)
        if ((addr + len) > 0x100000000UL)
                err = open_high_hpage_areas(current->mm,
                                            HTLB_AREA_MASK(addr, len));
+#ifdef CONFIG_SPE_BASE
+        spu_flush_all_slbs(current->mm);
+#endif
        if (err) {
                printk(KERN_DEBUG "prepare_hugepage_range(%lx, %lx)"
                       " failed (lowmask: 0x%04hx, highmask: 0x%04hx)\n",
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index c43999a10deb..eba7a2641dce 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -38,8 +38,61 @@
 const struct spu_management_ops *spu_management_ops;
 const struct spu_priv1_ops *spu_priv1_ops;
+static struct list_head spu_list[MAX_NUMNODES];
+static LIST_HEAD(spu_full_list);
+static DEFINE_MUTEX(spu_mutex);
+static spinlock_t spu_list_lock = SPIN_LOCK_UNLOCKED;
 EXPORT_SYMBOL_GPL(spu_priv1_ops);
+void spu_invalidate_slbs(struct spu *spu)
+{
+        struct spu_priv2 __iomem *priv2 = spu->priv2;
+        if (spu_mfc_sr1_get(spu) & MFC_STATE1_RELOCATE_MASK)
+                out_be64(&priv2->slb_invalidate_all_W, 0UL);
+}
+EXPORT_SYMBOL_GPL(spu_invalidate_slbs);
+/* This is called by the MM core when a segment size is changed, to
+ * request a flush of all the SPEs using a given mm
+ */
+void spu_flush_all_slbs(struct mm_struct *mm)
+{
+        struct spu *spu;
+        unsigned long flags;
+        spin_lock_irqsave(&spu_list_lock, flags);
+        list_for_each_entry(spu, &spu_full_list, full_list) {
+                if (spu->mm == mm)
+                        spu_invalidate_slbs(spu);
+        }
+        spin_unlock_irqrestore(&spu_list_lock, flags);
+}
+/* The hack below stinks... try to do something better one of
+ * these days... Does it even work properly with NR_CPUS == 1 ?
+ */
+static inline void mm_needs_global_tlbie(struct mm_struct *mm)
+{
+        int nr = (NR_CPUS > 1) ? NR_CPUS : NR_CPUS + 1;
+        /* Global TLBIE broadcast required with SPEs. */
+        __cpus_setall(&mm->cpu_vm_mask, nr);
+}
+void spu_associate_mm(struct spu *spu, struct mm_struct *mm)
+{
+        unsigned long flags;
+        spin_lock_irqsave(&spu_list_lock, flags);
+        spu->mm = mm;
+        spin_unlock_irqrestore(&spu_list_lock, flags);
+        if (mm)
+                mm_needs_global_tlbie(mm);
+}
+EXPORT_SYMBOL_GPL(spu_associate_mm);
 static int __spu_trap_invalid_dma(struct spu *spu)
 {
        pr_debug("%s\n", __FUNCTION__);
@@ -74,6 +127,7 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
        struct spu_priv2 __iomem *priv2 = spu->priv2;
        struct mm_struct *mm = spu->mm;
        u64 esid, vsid, llp;
+        int psize;
        pr_debug("%s\n", __FUNCTION__);
@@ -90,22 +144,25 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
        case USER_REGION_ID:
 #ifdef CONFIG_HUGETLB_PAGE
                if (in_hugepage_area(mm->context, ea))
-                        llp = mmu_psize_defs[mmu_huge_psize].sllp;
+                        psize = mmu_huge_psize;
                else
 #endif
-                        llp = mmu_psize_defs[mmu_virtual_psize].sllp;
+                        psize = mm->context.user_psize;
                vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) |
-                                SLB_VSID_USER | llp;
+                                SLB_VSID_USER;
                break;
        case VMALLOC_REGION_ID:
-                llp = mmu_psize_defs[mmu_virtual_psize].sllp;
+                if (ea < VMALLOC_END)
+                        psize = mmu_vmalloc_psize;
+                else
+                        psize = mmu_io_psize;
                vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
-                        SLB_VSID_KERNEL | llp;
+                        SLB_VSID_KERNEL;
                break;
        case KERNEL_REGION_ID:
-                llp = mmu_psize_defs[mmu_linear_psize].sllp;
+                psize = mmu_linear_psize;
                vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
-                        SLB_VSID_KERNEL | llp;
+                        SLB_VSID_KERNEL;
                break;
        default:
                /* Future: support kernel segments so that drivers
@@ -114,9 +171,10 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
                pr_debug("invalid region access at %016lx\n", ea);
                return 1;
        }
+        llp = mmu_psize_defs[psize].sllp;
        out_be64(&priv2->slb_index_W, spu->slb_replace);
-        out_be64(&priv2->slb_vsid_RW, vsid);
+        out_be64(&priv2->slb_vsid_RW, vsid | llp);
        out_be64(&priv2->slb_esid_RW, esid);
        spu->slb_replace++;
@@ -330,10 +388,6 @@ static void spu_free_irqs(struct spu *spu)
                free_irq(spu->irqs[2], spu);
 }
-static struct list_head spu_list[MAX_NUMNODES];
-static LIST_HEAD(spu_full_list);
-static DEFINE_MUTEX(spu_mutex);
 static void spu_init_channels(struct spu *spu)
 {
        static const struct {
@@ -593,6 +647,7 @@ static int __init create_spu(void *data)
        struct spu *spu;
        int ret;
        static int number;
+        unsigned long flags;
        ret = -ENOMEM;
        spu = kzalloc(sizeof (*spu), GFP_KERNEL);
@@ -620,8 +675,10 @@ static int __init create_spu(void *data)
                goto out_free_irqs;
        mutex_lock(&spu_mutex);
+        spin_lock_irqsave(&spu_list_lock, flags);
        list_add(&spu->list, &spu_list[spu->node]);
        list_add(&spu->full_list, &spu_full_list);
+        spin_unlock_irqrestore(&spu_list_lock, flags);
        mutex_unlock(&spu_mutex);
        goto out;
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index b00653d69c01..505266a568d4 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -63,8 +63,8 @@ static ssize_t
 spufs_mem_read(struct file *file, char __user *buffer,
                                size_t size, loff_t *pos)
 {
-        int ret;
        struct spu_context *ctx = file->private_data;
+        ssize_t ret;
        spu_acquire(ctx);
        ret = __spufs_mem_read(ctx, buffer, size, pos);
@@ -74,25 +74,29 @@ spufs_mem_read(struct file *file, char __user *buffer,
 static ssize_t
 spufs_mem_write(struct file *file, const char __user *buffer,
-                                        size_t size, loff_t *pos)
+                                        size_t size, loff_t *ppos)
 {
        struct spu_context *ctx = file->private_data;
        char *local_store;
+        loff_t pos = *ppos;
        int ret;
-        size = min_t(ssize_t, LS_SIZE - *pos, size);
+        if (pos < 0)
-        if (size <= 0)
+                return -EINVAL;
+        if (pos > LS_SIZE)
                return -EFBIG;
-        *pos += size;
+        if (size > LS_SIZE - pos)
+                size = LS_SIZE - pos;
        spu_acquire(ctx);
        local_store = ctx->ops->get_ls(ctx);
-        ret = copy_from_user(local_store + *pos - size,
+        ret = copy_from_user(local_store + pos, buffer, size);
-                             buffer, size) ? -EFAULT : size;
        spu_release(ctx);
-        return ret;
+        if (ret)
+                return -EFAULT;
+        *ppos = pos + size;
+        return size;
 }
 static unsigned long spufs_mem_mmap_nopfn(struct vm_area_struct *vma,
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index 353a8fa07ab8..f95a611ca362 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -143,7 +143,7 @@ static inline int spu_run_init(struct spu_context *ctx, u32 * npc)
        int ret;
        unsigned long runcntl = SPU_RUNCNTL_RUNNABLE;
-        ret = spu_acquire_runnable(ctx, SPU_ACTIVATE_NOWAKE);
+        ret = spu_acquire_runnable(ctx, 0);
        if (ret)
                return ret;
@@ -155,7 +155,7 @@ static inline int spu_run_init(struct spu_context *ctx, u32 * npc)
                        spu_release(ctx);
                        ret = spu_setup_isolated(ctx);
                        if (!ret)
-                                ret = spu_acquire_runnable(ctx, SPU_ACTIVATE_NOWAKE);
+                                ret = spu_acquire_runnable(ctx, 0);
                }
                /* if userspace has set the runcntrl register (eg, to issue an
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 2f25e68b4bac..39823cec0844 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -127,14 +127,6 @@ static void spu_remove_from_active_list(struct spu *spu)
        mutex_unlock(&spu_prio->active_mutex[node]);
 }
-static inline void mm_needs_global_tlbie(struct mm_struct *mm)
-{
-        int nr = (NR_CPUS > 1) ? NR_CPUS : NR_CPUS + 1;
-        /* Global TLBIE broadcast required with SPEs. */
-        __cpus_setall(&mm->cpu_vm_mask, nr);
-}
 static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);
 static void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
@@ -167,8 +159,7 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
        ctx->spu = spu;
        ctx->ops = &spu_hw_ops;
        spu->pid = current->pid;
-        spu->mm = ctx->owner;
+        spu_associate_mm(spu, ctx->owner);
-        mm_needs_global_tlbie(spu->mm);
        spu->ibox_callback = spufs_ibox_callback;
        spu->wbox_callback = spufs_wbox_callback;
        spu->stop_callback = spufs_stop_callback;
@@ -205,7 +196,7 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
        spu->stop_callback = NULL;
        spu->mfc_callback = NULL;
        spu->dma_callback = NULL;
-        spu->mm = NULL;
+        spu_associate_mm(spu, NULL);
        spu->pid = 0;
        ctx->ops = &spu_backing_ops;
        ctx->spu = NULL;
@@ -263,7 +254,6 @@ static void spu_prio_wait(struct spu_context *ctx)
 {
        DEFINE_WAIT(wait);
-        set_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
        prepare_to_wait_exclusive(&ctx->stop_wq, &wait, TASK_INTERRUPTIBLE);
        if (!signal_pending(current)) {
                mutex_unlock(&ctx->state_mutex);
@@ -272,7 +262,6 @@ static void spu_prio_wait(struct spu_context *ctx)
        }
        __set_current_state(TASK_RUNNING);
        remove_wait_queue(&ctx->stop_wq, &wait);
-        clear_bit(SPU_SCHED_WAKE, &ctx->sched_flags);
 }
 /**
@@ -292,7 +281,7 @@ static void spu_reschedule(struct spu *spu)
        best = sched_find_first_bit(spu_prio->bitmap);
        if (best < MAX_PRIO) {
                struct spu_context *ctx = spu_grab_context(best);
-                if (ctx && test_bit(SPU_SCHED_WAKE, &ctx->sched_flags))
+                if (ctx)
                        wake_up(&ctx->stop_wq);
        }
        spin_unlock(&spu_prio->runq_lock);
@@ -414,8 +403,7 @@ int spu_activate(struct spu_context *ctx, unsigned long flags)
                }
                spu_add_to_rq(ctx);
-                if (!(flags & SPU_ACTIVATE_NOWAKE))
+                spu_prio_wait(ctx);
-                        spu_prio_wait(ctx);
                spu_del_from_rq(ctx);
        } while (!signal_pending(current));
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 0c437891dfd5..5c4e47d69d79 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -41,7 +41,7 @@ struct spu_gang;
 /* ctx->sched_flags */
 enum {
-        SPU_SCHED_WAKE = 0,
+        SPU_SCHED_WAKE = 0, /* currently unused */
 };
 struct spu_context {
@@ -191,9 +191,7 @@ void spu_forget(struct spu_context *ctx);
 int spu_acquire_runnable(struct spu_context *ctx, unsigned long flags);
 void spu_acquire_saved(struct spu_context *ctx);
 int spu_acquire_exclusive(struct spu_context *ctx);
-enum {
-        SPU_ACTIVATE_NOWAKE = 1,
-};
 int spu_activate(struct spu_context *ctx, unsigned long flags);
 void spu_deactivate(struct spu_context *ctx);
 void spu_yield(struct spu_context *ctx);
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index c08981ff7fc6..fd91c73de34e 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -468,26 +468,6 @@ static inline void wait_purge_complete(struct spu_state *csa, struct spu *spu)
                         MFC_CNTL_PURGE_DMA_COMPLETE);
 }
-static inline void save_mfc_slbs(struct spu_state *csa, struct spu *spu)
-{
-        struct spu_priv2 __iomem *priv2 = spu->priv2;
-        int i;
-        /* Save, Step 29:
-         *     If MFC_SR1[R]='1', save SLBs in CSA.
-         */
-        if (spu_mfc_sr1_get(spu) & MFC_STATE1_RELOCATE_MASK) {
-                csa->priv2.slb_index_W = in_be64(&priv2->slb_index_W);
-                for (i = 0; i < 8; i++) {
-                        out_be64(&priv2->slb_index_W, i);
-                        eieio();
-                        csa->slb_esid_RW[i] = in_be64(&priv2->slb_esid_RW);
-                        csa->slb_vsid_RW[i] = in_be64(&priv2->slb_vsid_RW);
-                        eieio();
-                }
-        }
-}
 static inline void setup_mfc_sr1(struct spu_state *csa, struct spu *spu)
 {
        /* Save, Step 30:
@@ -708,20 +688,6 @@ static inline void resume_mfc_queue(struct spu_state *csa, struct spu *spu)
        out_be64(&priv2->mfc_control_RW, MFC_CNTL_RESUME_DMA_QUEUE);
 }
-static inline void invalidate_slbs(struct spu_state *csa, struct spu *spu)
-{
-        struct spu_priv2 __iomem *priv2 = spu->priv2;
-        /* Save, Step 45:
-         * Restore, Step 19:
-         *     If MFC_SR1[R]=1, write 0 to SLB_Invalidate_All.
-         */
-        if (spu_mfc_sr1_get(spu) & MFC_STATE1_RELOCATE_MASK) {
-                out_be64(&priv2->slb_invalidate_all_W, 0UL);
-                eieio();
-        }
-}
 static inline void get_kernel_slb(u64 ea, u64 slb[2])
 {
        u64 llp;
@@ -765,7 +731,7 @@ static inline void setup_mfc_slbs(struct spu_state *csa, struct spu *spu)
         *     MFC_SR1[R]=1 (in other words, assume that
         *     translation is desired by OS environment).
         */
-        invalidate_slbs(csa, spu);
+        spu_invalidate_slbs(spu);
        get_kernel_slb((unsigned long)&spu_save_code[0], code_slb);
        get_kernel_slb((unsigned long)csa->lscsa, lscsa_slb);
        load_mfc_slb(spu, code_slb, 0);
@@ -1718,27 +1684,6 @@ static inline void check_ppuint_mb_stat(struct spu_state *csa, struct spu *spu)
        }
 }
-static inline void restore_mfc_slbs(struct spu_state *csa, struct spu *spu)
-{
-        struct spu_priv2 __iomem *priv2 = spu->priv2;
-        int i;
-        /* Restore, Step 68:
-         *     If MFC_SR1[R]='1', restore SLBs from CSA.
-         */
-        if (csa->priv1.mfc_sr1_RW & MFC_STATE1_RELOCATE_MASK) {
-                for (i = 0; i < 8; i++) {
-                        out_be64(&priv2->slb_index_W, i);
-                        eieio();
-                        out_be64(&priv2->slb_esid_RW, csa->slb_esid_RW[i]);
-                        out_be64(&priv2->slb_vsid_RW, csa->slb_vsid_RW[i]);
-                        eieio();
-                }
-                out_be64(&priv2->slb_index_W, csa->priv2.slb_index_W);
-                eieio();
-        }
-}
 static inline void restore_mfc_sr1(struct spu_state *csa, struct spu *spu)
 {
        /* Restore, Step 69:
@@ -1875,7 +1820,6 @@ static void save_csa(struct spu_state *prev, struct spu *spu)
        set_mfc_tclass_id(prev, spu);   /* Step 26. */
        purge_mfc_queue(prev, spu);     /* Step 27. */
        wait_purge_complete(prev, spu); /* Step 28. */
-        save_mfc_slbs(prev, spu);       /* Step 29. */
        setup_mfc_sr1(prev, spu);       /* Step 30. */
        save_spu_npc(prev, spu);        /* Step 31. */
        save_spu_privcntl(prev, spu);   /* Step 32. */
@@ -1987,7 +1931,7 @@ static void harvest(struct spu_state *prev, struct spu *spu)
        reset_spu_privcntl(prev, spu);          /* Step 16. */
        reset_spu_lslr(prev, spu);              /* Step 17. */
        setup_mfc_sr1(prev, spu);               /* Step 18. */
-        invalidate_slbs(prev, spu);             /* Step 19. */
+        spu_invalidate_slbs(spu);               /* Step 19. */
        reset_ch_part1(prev, spu);              /* Step 20. */
        reset_ch_part2(prev, spu);              /* Step 21. */
        enable_interrupts(prev, spu);           /* Step 22. */
@@ -2055,7 +1999,7 @@ static void restore_csa(struct spu_state *next, struct spu *spu)
        restore_spu_mb(next, spu);              /* Step 65. */
        check_ppu_mb_stat(next, spu);           /* Step 66. */
        check_ppuint_mb_stat(next, spu);        /* Step 67. */
-        restore_mfc_slbs(next, spu);            /* Step 68. */
+        spu_invalidate_slbs(spu);               /* Modified Step 68. */
        restore_mfc_sr1(next, spu);             /* Step 69. */
        restore_other_spu_access(next, spu);    /* Step 70. */
        restore_spu_runcntl(next, spu);         /* Step 71. */
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 459a53b7d24d..71dbf1a56e13 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -77,7 +77,7 @@
 #define IOBMAP_L2E_V            0x80000000
 #define IOBMAP_L2E_V_CACHED     0xc0000000
-static u32 *iob;
+static u32 __iomem *iob;
 static u32 iob_l1_emptyval;
 static u32 iob_l2_emptyval;
 static u32 *iob_l2_base;
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 42354de3f557..2014d2b44449 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -294,7 +294,7 @@ static int __init ps3_mm_add_memory(void)
        unsigned long nr_pages;
        if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
-                return 0;
+                return -ENODEV;
        BUG_ON(!mem_init_done);
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index a9f7e4a39a2a..3c48cce98a5c 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -172,7 +172,7 @@ int __init ps3_system_bus_init(void)
        int result;
        if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
-                return 0;
+                return -ENODEV;
        result = bus_register(&ps3_system_bus_type);
        BUG_ON(result);
diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
index 4ca615788702..697eb30a68a3 100644
--- a/arch/s390/appldata/appldata_mem.c
+++ b/arch/s390/appldata/appldata_mem.c
@@ -117,7 +117,10 @@ static void appldata_get_mem_data(void *data)
        mem_data->pgpgout    = ev[PGPGOUT] >> 1;
        mem_data->pswpin     = ev[PSWPIN];
        mem_data->pswpout    = ev[PSWPOUT];
-        mem_data->pgalloc    = ev[PGALLOC_NORMAL] + ev[PGALLOC_DMA];
+        mem_data->pgalloc    = ev[PGALLOC_NORMAL];
+#ifdef CONFIG_ZONE_DMA
+        mem_data->pgalloc    += ev[PGALLOC_DMA];
+#endif
        mem_data->pgfault    = ev[PGFAULT];
        mem_data->pgmajfault = ev[PGMAJFAULT];
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 113bd48a89bd..fc874e63a499 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -348,7 +348,7 @@ void exit_thread(void)
 #ifndef CONFIG_SMP
        if(last_task_used_math == current) {
 #else
-        if(current_thread_info()->flags & _TIF_USEDFPU) {
+        if (test_thread_flag(TIF_USEDFPU)) {
 #endif
                /* Keep process from leaving FPU in a bogon state. */
                put_psr(get_psr() | PSR_EF);
@@ -357,7 +357,7 @@ void exit_thread(void)
 #ifndef CONFIG_SMP
                last_task_used_math = NULL;
 #else
-                current_thread_info()->flags &= ~_TIF_USEDFPU;
+                clear_thread_flag(TIF_USEDFPU);
 #endif
        }
 }
@@ -371,7 +371,7 @@ void flush_thread(void)
 #ifndef CONFIG_SMP
        if(last_task_used_math == current) {
 #else
-        if(current_thread_info()->flags & _TIF_USEDFPU) {
+        if (test_thread_flag(TIF_USEDFPU)) {
 #endif
                /* Clean the fpu. */
                put_psr(get_psr() | PSR_EF);
@@ -380,7 +380,7 @@ void flush_thread(void)
 #ifndef CONFIG_SMP
                last_task_used_math = NULL;
 #else
-                current_thread_info()->flags &= ~_TIF_USEDFPU;
+                clear_thread_flag(TIF_USEDFPU);
 #endif
        }
@@ -466,13 +466,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 #ifndef CONFIG_SMP
        if(last_task_used_math == current) {
 #else
-        if(current_thread_info()->flags & _TIF_USEDFPU) {
+        if (test_thread_flag(TIF_USEDFPU)) {
 #endif
                put_psr(get_psr() | PSR_EF);
                fpsave(&p->thread.float_regs[0], &p->thread.fsr,
                       &p->thread.fpqueue[0], &p->thread.fpqdepth);
 #ifdef CONFIG_SMP
-                current_thread_info()->flags &= ~_TIF_USEDFPU;
+                clear_thread_flag(TIF_USEDFPU);
 #endif
        }
@@ -609,13 +609,13 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs)
                return 1;
        }
 #ifdef CONFIG_SMP
-        if (current_thread_info()->flags & _TIF_USEDFPU) {
+        if (test_thread_flag(TIF_USEDFPU)) {
                put_psr(get_psr() | PSR_EF);
                fpsave(&current->thread.float_regs[0], &current->thread.fsr,
                       &current->thread.fpqueue[0], &current->thread.fpqdepth);
                if (regs != NULL) {
                        regs->psr &= ~(PSR_EF);
-                        current_thread_info()->flags &= ~(_TIF_USEDFPU);
+                        clear_thread_flag(TIF_USEDFPU);
                }
        }
 #else
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index ea75ca569052..3a69778c8366 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -78,7 +78,8 @@ sys_call_table:
 /*285*/ .long sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*290*/ .long sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 /*295*/ .long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
-/*300*/ .long sys_set_robust_list, sys_get_robust_list, sys_migrate_pages
+/*300*/ .long sys_set_robust_list, sys_get_robust_list, sys_migrate_pages, sys_mbind, sys_get_mempolicy
+/*305*/ .long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 #ifdef CONFIG_SUNOS_EMUL
        /* Now the SunOS syscall table. */
@@ -192,5 +193,8 @@ sunos_sys_table:
        .long sunos_nosys, sunos_nosys, sunos_nosys
        .long sunos_nosys
 /*300*/ .long sunos_nosys, sunos_nosys, sunos_nosys
+        .long sunos_nosys, sunos_nosys, sunos_nosys
+        .long sunos_nosys, sunos_nosys, sunos_nosys
+        .long sunos_nosys
 #endif
diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c
index 6a70d215fd04..527687afc1c4 100644
--- a/arch/sparc/kernel/traps.c
+++ b/arch/sparc/kernel/traps.c
@@ -259,7 +259,7 @@ void do_fpd_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc,
        } else {
                fpload(&current->thread.float_regs[0], &current->thread.fsr);
        }
-        current_thread_info()->flags |= _TIF_USEDFPU;
+        set_thread_flag(TIF_USEDFPU);
 #endif
 }
@@ -290,7 +290,7 @@ void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc,
 #ifndef CONFIG_SMP
        if(!fpt) {
 #else
-        if(!(task_thread_info(fpt)->flags & _TIF_USEDFPU)) {
+        if (!test_tsk_thread_flag(fpt, TIF_USEDFPU)) {
 #endif
                fpsave(&fake_regs[0], &fake_fsr, &fake_queue[0], &fake_depth);
                regs->psr &= ~PSR_EF;
@@ -333,7 +333,7 @@ void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc,
        /* nope, better SIGFPE the offending process... */
               
 #ifdef CONFIG_SMP
-        task_thread_info(fpt)->flags &= ~_TIF_USEDFPU;
+        clear_tsk_thread_flag(fpt, TIF_USEDFPU);
 #endif
        if(psr & PSR_PS) {
                /* The first fsr store/load we tried trapped,
diff --git a/arch/sparc/mm/init.c b/arch/sparc/mm/init.c
index c85ddf312747..a532922e2e35 100644
--- a/arch/sparc/mm/init.c
+++ b/arch/sparc/mm/init.c
@@ -75,7 +75,7 @@ void show_mem(void)
        printk("Free swap:       %6ldkB\n",
               nr_swap_pages << (PAGE_SHIFT-10));
        printk("%ld pages of RAM\n", totalram_pages);
-        printk("%d free pages\n", nr_free_pages());
+        printk("%ld free pages\n", nr_free_pages());
 #if 0 /* undefined pgtable_cache_size, pgd_cache_size */
        printk("%ld pages in page table cache\n",pgtable_cache_size);
 #ifndef CONFIG_SMP
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index f75a686ba644..1a6348b565fb 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -136,18 +136,6 @@ config SMP
          If you don't know what to do here, say N.
-config PREEMPT
-        bool "Preemptible Kernel"
-        help
-          This option reduces the latency of the kernel when reacting to
-          real-time or interactive events by allowing a low priority process to
-          be preempted even if it is in kernel mode executing a system call.
-          This allows applications to run more reliably even when the system is
-          under load.
-          Say Y here if you are building a kernel for a desktop, embedded
-          or real-time system.  Say N if you are unsure.
 config NR_CPUS
        int "Maximum number of CPUs (2-64)"
        range 2 64
@@ -399,6 +387,8 @@ config SCHED_SMT
          when dealing with UltraSPARC cpus at a cost of slightly increased
          overhead in some places. If unsure say N here.
+source "kernel/Kconfig.preempt"
 config CMDLINE_BOOL
        bool "Default bootloader kernel arguments"
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index 860b8b60526c..120c9c33b7a6 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.21-rc2
+# Linux kernel version: 2.6.21-rc4
-# Wed Feb 28 09:50:51 2007
+# Sat Mar 17 14:18:44 2007
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -50,6 +50,7 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_IKCONFIG is not set
 CONFIG_SYSFS_DEPRECATED=y
 CONFIG_RELAY=y
+# CONFIG_BLK_DEV_INITRD is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 # CONFIG_EMBEDDED is not set
@@ -108,7 +109,6 @@ CONFIG_GENERIC_HARDIRQS=y
 # General machine setup
 #
 # CONFIG_SMP is not set
-# CONFIG_PREEMPT is not set
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_TABLE=m
 # CONFIG_CPU_FREQ_DEBUG is not set
@@ -165,6 +165,9 @@ CONFIG_BINFMT_ELF32=y
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
 CONFIG_SOLARIS_EMUL=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_VOLUNTARY=y
+# CONFIG_PREEMPT is not set
 # CONFIG_CMDLINE_BOOL is not set
 #
@@ -340,7 +343,6 @@ CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_SX8 is not set
 # CONFIG_BLK_DEV_UB is not set
 # CONFIG_BLK_DEV_RAM is not set
-# CONFIG_BLK_DEV_INITRD is not set
 CONFIG_CDROM_PKTCDVD=m
 CONFIG_CDROM_PKTCDVD_BUFFERS=8
 CONFIG_CDROM_PKTCDVD_WCACHE=y
diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S
index e492db845ea3..d4024ac0d619 100644
--- a/arch/sparc64/kernel/ktlb.S
+++ b/arch/sparc64/kernel/ktlb.S
@@ -138,9 +138,15 @@ kvmap_dtlb_4v:
        brgez,pn        %g4, kvmap_dtlb_nonlinear
         nop
+#ifdef CONFIG_DEBUG_PAGEALLOC
+        /* Index through the base page size TSB even for linear
+         * mappings when using page allocation debugging.
+         */
+        KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load)
+#else
        /* Correct TAG_TARGET is already in %g6, check 4mb TSB.  */
        KERN_TSB4M_LOOKUP_TL1(%g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load)
+#endif
        /* TSB entry address left in %g1, lookup linear PTE.
         * Must preserve %g1 and %g6 (TAG).
         */
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 7d75cd4eb297..b291060c25a6 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -413,8 +413,13 @@ void flush_thread(void)
        struct thread_info *t = current_thread_info();
        struct mm_struct *mm;
-        if (t->flags & _TIF_ABI_PENDING)
+        if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
-                t->flags ^= (_TIF_ABI_PENDING | _TIF_32BIT);
+                clear_ti_thread_flag(t, TIF_ABI_PENDING);
+                if (test_ti_thread_flag(t, TIF_32BIT))
+                        clear_ti_thread_flag(t, TIF_32BIT);
+                else
+                        set_ti_thread_flag(t, TIF_32BIT);
+        }
        mm = t->task->mm;
        if (mm)
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index 948b7d2d5874..aaeb5e06735c 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -79,7 +79,8 @@ sys_call_table32:
        .word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
 /*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
        .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
-/*300*/ .word compat_sys_set_robust_list, compat_sys_get_robust_list, compat_sys_migrate_pages
+/*300*/ .word compat_sys_set_robust_list, compat_sys_get_robust_list, compat_sys_migrate_pages, compat_sys_mbind, compat_sys_get_mempolicy
+        .word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait
 #endif /* CONFIG_COMPAT */
@@ -149,7 +150,8 @@ sys_call_table:
        .word sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
        .word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
-/*300*/ .word sys_set_robust_list, sys_get_robust_list, sys_migrate_pages
+/*300*/ .word sys_set_robust_list, sys_get_robust_list, sys_migrate_pages, sys_mbind, sys_get_mempolicy
+        .word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 #if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \
    defined(CONFIG_SOLARIS_EMUL_MODULE)
@@ -264,5 +266,8 @@ sunos_sys_table:
        .word sunos_nosys, sunos_nosys, sunos_nosys
        .word sunos_nosys
 /*300*/ .word sunos_nosys, sunos_nosys, sunos_nosys
+        .word sunos_nosys, sunos_nosys, sunos_nosys
+        .word sunos_nosys, sunos_nosys, sunos_nosys
+        .word sunos_nosys
 #endif
diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c
index 33fd0b265e70..00677b5e1d7d 100644
--- a/arch/sparc64/mm/hugetlbpage.c
+++ b/arch/sparc64/mm/hugetlbpage.c
@@ -248,6 +248,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
        if (!pte_present(*ptep) && pte_present(entry))
                mm->context.huge_pte_count++;
+        addr &= HPAGE_MASK;
        for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
                set_pte_at(mm, addr, ptep, entry);
                ptep++;
@@ -266,6 +267,8 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
        if (pte_present(entry))
                mm->context.huge_pte_count--;
+        addr &= HPAGE_MASK;
        for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
                pte_clear(mm, addr, ptep);
                addr += PAGE_SIZE;
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index b1a1ee0cc6bd..f146071a4b2a 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -59,8 +59,10 @@ unsigned long kern_linear_pte_xor[2] __read_mostly;
 */
 unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)];
+#ifndef CONFIG_DEBUG_PAGEALLOC
 /* A special kernel TSB for 4MB and 256MB linear mappings.  */
 struct tsb swapper_4m_tsb[KERNEL_TSB4M_NENTRIES];
+#endif
 #define MAX_BANKS       32
@@ -1301,7 +1303,12 @@ static void __init tsb_phys_patch(void)
 }
 /* Don't mark as init, we give this to the Hypervisor.  */
-static struct hv_tsb_descr ktsb_descr[2];
+#ifndef CONFIG_DEBUG_PAGEALLOC
+#define NUM_KTSB_DESCR  2
+#else
+#define NUM_KTSB_DESCR  1
+#endif
+static struct hv_tsb_descr ktsb_descr[NUM_KTSB_DESCR];
 extern struct tsb swapper_tsb[KERNEL_TSB_NENTRIES];
 static void __init sun4v_ktsb_init(void)
@@ -1340,6 +1347,7 @@ static void __init sun4v_ktsb_init(void)
        ktsb_descr[0].tsb_base = ktsb_pa;
        ktsb_descr[0].resv = 0;
+#ifndef CONFIG_DEBUG_PAGEALLOC
        /* Second KTSB for 4MB/256MB mappings.  */
        ktsb_pa = (kern_base +
                   ((unsigned long)&swapper_4m_tsb[0] - KERNBASE));
@@ -1352,6 +1360,7 @@ static void __init sun4v_ktsb_init(void)
        ktsb_descr[1].ctx_idx = 0;
        ktsb_descr[1].tsb_base = ktsb_pa;
        ktsb_descr[1].resv = 0;
+#endif
 }
 void __cpuinit sun4v_ktsb_register(void)
@@ -1364,7 +1373,7 @@ void __cpuinit sun4v_ktsb_register(void)
        pa = kern_base + ((unsigned long)&ktsb_descr[0] - KERNBASE);
        func = HV_FAST_MMU_TSB_CTX0;
-        arg0 = 2;
+        arg0 = NUM_KTSB_DESCR;
        arg1 = pa;
        __asm__ __volatile__("ta        %6"
                             : "=&r" (func), "=&r" (arg0), "=&r" (arg1)
@@ -1393,7 +1402,9 @@ void __init paging_init(void)
        /* Invalidate both kernel TSBs.  */
        memset(swapper_tsb, 0x40, sizeof(swapper_tsb));
+#ifndef CONFIG_DEBUG_PAGEALLOC
        memset(swapper_4m_tsb, 0x40, sizeof(swapper_4m_tsb));
+#endif
        if (tlb_type == hypervisor)
                sun4v_pgprot_init();
@@ -1725,8 +1736,13 @@ static void __init sun4u_pgprot_init(void)
        pg_iobits = (_PAGE_VALID | _PAGE_PRESENT_4U | __DIRTY_BITS_4U |
                     __ACCESS_BITS_4U | _PAGE_E_4U);
+#ifdef CONFIG_DEBUG_PAGEALLOC
+        kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4U) ^
+                0xfffff80000000000;
+#else
        kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^
                0xfffff80000000000;
+#endif
        kern_linear_pte_xor[0] |= (_PAGE_CP_4U | _PAGE_CV_4U |
                                   _PAGE_P_4U | _PAGE_W_4U);
@@ -1769,13 +1785,23 @@ static void __init sun4v_pgprot_init(void)
        _PAGE_E = _PAGE_E_4V;
        _PAGE_CACHE = _PAGE_CACHE_4V;
+#ifdef CONFIG_DEBUG_PAGEALLOC
+        kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^
+                0xfffff80000000000;
+#else
        kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^
                0xfffff80000000000;
+#endif
        kern_linear_pte_xor[0] |= (_PAGE_CP_4V | _PAGE_CV_4V |
                                   _PAGE_P_4V | _PAGE_W_4V);
+#ifdef CONFIG_DEBUG_PAGEALLOC
+        kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^
+                0xfffff80000000000;
+#else
        kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZ256MB_4V) ^
                0xfffff80000000000;
+#endif
        kern_linear_pte_xor[1] |= (_PAGE_CP_4V | _PAGE_CV_4V |
                                   _PAGE_P_4V | _PAGE_W_4V);
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index b3a21ba77cd2..354cc6b70530 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -44,7 +44,7 @@ config LOCKDEP_SUPPORT
 config STACKTRACE_SUPPORT
        bool
-        default y
+        default n
 config GENERIC_CALIBRATE_DELAY
        bool
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 813077fb1e5b..a9a4b85ca516 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -10,7 +10,7 @@ USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 $(USER_OBJS:.o=.%): \
        c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(basetarget).o)
 $(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
-        -Dunix -D__unix__ -D__$(SUBARCH)__
+        -Dunix -D__unix__ -D__$(SUBARCH)__ $(CF)
 # These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
 # using it directly.
@@ -19,7 +19,7 @@ UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))
 $(UNPROFILE_OBJS:.o=.%): \
        c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(basetarget).o)
 $(UNPROFILE_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
-        -Dunix -D__unix__ -D__$(SUBARCH)__
+        -Dunix -D__unix__ -D__$(SUBARCH)__ $(CF)
 # The stubs and unmap.o can't try to call mcount or update basic block data
 define unprofile
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index 293a4a4c609e..7a1e251e333d 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -1,11 +1,13 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-git8
+# Linux kernel version: 2.6.21-rc3
-# Tue Feb 13 11:25:16 2007
+# Wed Mar  7 15:29:47 2007
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
 CONFIG_X86=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
 CONFIG_ZONE_DMA32=y
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_STACKTRACE_SUPPORT=y
@@ -43,6 +45,7 @@ CONFIG_LOCALVERSION_AUTO=y
 CONFIG_SWAP=y
 CONFIG_SYSVIPC=y
 # CONFIG_IPC_NS is not set
+CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 # CONFIG_TASKSTATS is not set
@@ -53,6 +56,7 @@ CONFIG_IKCONFIG_PROC=y
 # CONFIG_CPUSETS is not set
 CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
@@ -114,11 +118,11 @@ CONFIG_X86_PC=y
 # CONFIG_X86_VSMP is not set
 # CONFIG_MK8 is not set
 # CONFIG_MPSC is not set
-CONFIG_MCORE2=y
+# CONFIG_MCORE2 is not set
-# CONFIG_GENERIC_CPU is not set
+CONFIG_GENERIC_CPU=y
-CONFIG_X86_L1_CACHE_BYTES=64
+CONFIG_X86_L1_CACHE_BYTES=128
-CONFIG_X86_L1_CACHE_SHIFT=6
+CONFIG_X86_L1_CACHE_SHIFT=7
-CONFIG_X86_INTERNODE_CACHE_BYTES=64
+CONFIG_X86_INTERNODE_CACHE_BYTES=128
 CONFIG_X86_TSC=y
 CONFIG_X86_GOOD_APIC=y
 # CONFIG_MICROCODE is not set
@@ -207,10 +211,8 @@ CONFIG_ACPI_PROCFS=y
 CONFIG_ACPI_AC=y
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
-# CONFIG_ACPI_HOTKEY is not set
 CONFIG_ACPI_FAN=y
 # CONFIG_ACPI_DOCK is not set
-# CONFIG_ACPI_BAY is not set
 CONFIG_ACPI_PROCESSOR=y
 CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=y
@@ -319,7 +321,7 @@ CONFIG_IP_PNP_DHCP=y
 # CONFIG_INET_ESP is not set
 # CONFIG_INET_IPCOMP is not set
 # CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
+CONFIG_INET_TUNNEL=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
@@ -421,7 +423,13 @@ CONFIG_FW_LOADER=y
 #
 # Plug and Play support
 #
-# CONFIG_PNP is not set
+CONFIG_PNP=y
+# CONFIG_PNP_DEBUG is not set
+#
+# Protocols
+#
+CONFIG_PNPACPI=y
 #
 # Block devices
@@ -441,7 +449,6 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
-CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
@@ -451,6 +458,7 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_IBM_ASM is not set
 # CONFIG_SGI_IOC4 is not set
 # CONFIG_TIFM_CORE is not set
+# CONFIG_SONY_LAPTOP is not set
 #
 # ATA/ATAPI/MFM/RLL support
@@ -477,6 +485,7 @@ CONFIG_BLK_DEV_IDEACPI=y
 #
 CONFIG_IDE_GENERIC=y
 # CONFIG_BLK_DEV_CMD640 is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
 CONFIG_BLK_DEV_IDEPCI=y
 # CONFIG_IDEPCI_SHARE_IRQ is not set
 # CONFIG_BLK_DEV_OFFBOARD is not set
@@ -623,6 +632,7 @@ CONFIG_SATA_VIA=y
 # CONFIG_SATA_VITESSE is not set
 # CONFIG_SATA_INIC162X is not set
 CONFIG_SATA_INTEL_COMBINED=y
+CONFIG_SATA_ACPI=y
 # CONFIG_PATA_ALI is not set
 # CONFIG_PATA_AMD is not set
 # CONFIG_PATA_ARTOP is not set
@@ -726,6 +736,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_BONDING is not set
 # CONFIG_EQUALIZER is not set
 CONFIG_TUN=y
+# CONFIG_NET_SB1000 is not set
 #
 # ARCnet devices
@@ -920,6 +931,7 @@ CONFIG_HW_CONSOLE=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_PNP=y
 CONFIG_SERIAL_8250_NR_UARTS=4
 CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 # CONFIG_SERIAL_8250_EXTENDED is not set
@@ -1001,6 +1013,7 @@ CONFIG_I2C_ISA=m
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_OCORES is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PASEMI is not set
 # CONFIG_I2C_PROSAVAGE is not set
 # CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_I2C_SIS5595 is not set
@@ -1047,6 +1060,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_ADM1021 is not set
 # CONFIG_SENSORS_ADM1025 is not set
 # CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
 # CONFIG_SENSORS_ADM1031 is not set
 # CONFIG_SENSORS_ADM9240 is not set
 # CONFIG_SENSORS_K8TEMP is not set
@@ -1090,6 +1104,11 @@ CONFIG_SENSORS_SMSC47B397=m
 # CONFIG_HWMON_DEBUG_CHIP is not set
 #
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
@@ -1103,7 +1122,7 @@ CONFIG_SENSORS_SMSC47B397=m
 #
 # Graphics support
 #
-# CONFIG_FIRMWARE_EDID is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 # CONFIG_FB is not set
 #
@@ -1114,7 +1133,6 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=256
 CONFIG_VIDEO_SELECT=y
 CONFIG_DUMMY_CONSOLE=y
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 #
 # Sound
@@ -1130,9 +1148,8 @@ CONFIG_SOUND=y
 # Open Sound System
 #
 CONFIG_SOUND_PRIME=y
-CONFIG_OBSOLETE_OSS=y
+# CONFIG_OBSOLETE_OSS is not set
 # CONFIG_SOUND_BT878 is not set
-# CONFIG_SOUND_ES1371 is not set
 CONFIG_SOUND_ICH=y
 # CONFIG_SOUND_TRIDENT is not set
 # CONFIG_SOUND_MSNDCLAS is not set
@@ -1263,6 +1280,7 @@ CONFIG_USB_MON=y
 # 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
@@ -1273,6 +1291,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_SISUSBVGA is not set
 # CONFIG_USB_LD is not set
 # CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_IOWARRIOR is not set
 # CONFIG_USB_TEST is not set
 #
@@ -1538,6 +1557,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
 # CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
@@ -1556,6 +1576,7 @@ CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_FORCED_INLINING is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
+# CONFIG_FAULT_INJECTION is not set
 # CONFIG_DEBUG_RODATA is not set
 # CONFIG_IOMMU_DEBUG is not set
 CONFIG_DEBUG_STACKOVERFLOW=y
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index eda7a0d4dc15..796df6992f62 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -560,7 +560,7 @@ ia32_sys_call_table:
        .quad sys_sched_yield
        .quad sys_sched_get_priority_max
        .quad sys_sched_get_priority_min  /* 160 */
-        .quad sys_sched_rr_get_interval
+        .quad sys32_sched_rr_get_interval
        .quad compat_sys_nanosleep
        .quad sys_mremap
        .quad sys_setresuid16
diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig
index ced15d06f0f3..40acb67fb882 100644
--- a/arch/x86_64/kernel/cpufreq/Kconfig
+++ b/arch/x86_64/kernel/cpufreq/Kconfig
@@ -75,6 +75,7 @@ config X86_ACPI_CPUFREQ_PROC_INTF
 config X86_P4_CLOCKMOD
        tristate "Intel Pentium 4 clock modulation"
        depends on EMBEDDED
+        select CPU_FREQ_TABLE
        help
          This adds the clock modulation driver for Intel Pentium 4 / XEON
          processors.  When enabled it will lower CPU temperature by skipping
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index 4651fd22b213..a490fabfcf47 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -662,7 +662,7 @@ static int __init parse_memmap_opt(char *p)
 }
 early_param("memmap", parse_memmap_opt);
-void finish_e820_parsing(void)
+void __init finish_e820_parsing(void)
 {
        if (userdef) {
                printk(KERN_INFO "user-defined physical RAM map:\n");
diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c
index dec587b293bf..148c6bcf5bb4 100644
--- a/arch/x86_64/kernel/early-quirks.c
+++ b/arch/x86_64/kernel/early-quirks.c
@@ -16,7 +16,7 @@
 #include <asm/proto.h>
 #include <asm/dma.h>
-static void via_bugs(void)
+static void __init via_bugs(void)
 {
 #ifdef CONFIG_IOMMU
        if ((end_pfn > MAX_DMA32_PFN ||  force_iommu) &&
@@ -36,7 +36,7 @@ static int __init nvidia_hpet_check(struct acpi_table_header *header)
 }
 #endif
-static void nvidia_bugs(void)
+static void __init nvidia_bugs(void)
 {
 #ifdef CONFIG_ACPI
        /*
@@ -62,7 +62,7 @@ static void nvidia_bugs(void)
 }
-static void ati_bugs(void)
+static void __init ati_bugs(void)
 {
        if (timer_over_8254 == 1) {
                timer_over_8254 = 0;
@@ -88,7 +88,7 @@ struct chipset {
        void (*f)(void);
 };
-static struct chipset early_qrk[] = {
+static struct __initdata chipset early_qrk[] = {
        { PCI_VENDOR_ID_NVIDIA, nvidia_bugs },
        { PCI_VENDOR_ID_VIA, via_bugs },
        { PCI_VENDOR_ID_ATI, ati_bugs },
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index 50dd8bef850e..455aa0b932f0 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -60,9 +60,9 @@ unsigned long mp_lapic_addr = 0;
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_id = -1U;
 /* Internal processor count */
-unsigned int num_processors __initdata = 0;
+unsigned int num_processors __cpuinitdata = 0;
-unsigned disabled_cpus __initdata;
+unsigned disabled_cpus __cpuinitdata;
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c
index 486f4c61a948..82d9d85d5270 100644
--- a/arch/x86_64/kernel/nmi.c
+++ b/arch/x86_64/kernel/nmi.c
@@ -187,10 +187,7 @@ void nmi_watchdog_default(void)
 {
        if (nmi_watchdog != NMI_DEFAULT)
                return;
-        if (nmi_known_cpu())
+        nmi_watchdog = NMI_NONE;
-                nmi_watchdog = NMI_LOCAL_APIC;
-        else
-                nmi_watchdog = NMI_IO_APIC;
 }
 static int endflag __initdata = 0;
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 030eb3753358..2bac8c60ad61 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -675,7 +675,7 @@ void __init gart_iommu_init(void)
        dma_ops = &gart_dma_ops;
 } 
-void gart_parse_options(char *p)
+void __init gart_parse_options(char *p)
 {
        int arg;
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index cbbc6adc1a92..d8d5ccc245c8 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -382,14 +382,17 @@ void exit_thread(void)
 void flush_thread(void)
 {
        struct task_struct *tsk = current;
-        struct thread_info *t = current_thread_info();
-        if (t->flags & _TIF_ABI_PENDING) {
+        if (test_tsk_thread_flag(tsk, TIF_ABI_PENDING)) {
-                t->flags ^= (_TIF_ABI_PENDING | _TIF_IA32);
+                clear_tsk_thread_flag(tsk, TIF_ABI_PENDING);
-                if (t->flags & _TIF_IA32)
+                if (test_tsk_thread_flag(tsk, TIF_IA32)) {
+                        clear_tsk_thread_flag(tsk, TIF_IA32);
+                } else {
+                        set_tsk_thread_flag(tsk, TIF_IA32);
                        current_thread_info()->status |= TS_COMPAT;
+                }
        }
-        t->flags &= ~_TIF_DEBUG;
+        clear_tsk_thread_flag(tsk, TIF_DEBUG);
        tsk->thread.debugreg0 = 0;
        tsk->thread.debugreg1 = 0;
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index 180ff919eaf9..b43c698cf7d3 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -112,7 +112,7 @@ static __always_inline void do_vgettimeofday(struct timeval * tv)
                vread = __vsyscall_gtod_data.clock.vread;
                if (unlikely(!__vsyscall_gtod_data.sysctl_enabled || !vread)) {
-                        gettimeofday(tv,0);
+                        gettimeofday(tv,NULL);
                        return;
                }
                now = vread();
diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
index 0dffae69f4ad..77c25b307635 100644
--- a/arch/x86_64/kernel/x8664_ksyms.c
+++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -59,3 +59,4 @@ EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(init_level4_pgt);
 EXPORT_SYMBOL(load_gs_index);
+EXPORT_SYMBOL(_proxy_pda);