184 files changed, 2902 insertions, 11789 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3df7cbd924a1..70b007e66926 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -702,6 +702,8 @@ menu "Device Drivers"
 
 source "drivers/base/Kconfig"
 
+source "drivers/connector/Kconfig"
+
 if ALIGNMENT_TRAP
 source "drivers/mtd/Kconfig"
 endif
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 557e52c1c869..1b7eaab02b9e 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -623,8 +623,6 @@ static int locomo_resume(struct platform_device *dev)
         locomo_writel(0x1, lchip->base + LOCOMO_KEYBOARD + LOCOMO_KCMD);
 
         spin_unlock_irqrestore(&lchip->lock, flags);
-
-        dev->power.saved_state = NULL;
         kfree(save);
 
         return 0;
@@ -775,7 +773,7 @@ static int locomo_probe(struct platform_device *dev)
 
 static int locomo_remove(struct platform_device *dev)
 {
-        struct locomo *lchip = platform__get_drvdata(dev);
+        struct locomo *lchip = platform_get_drvdata(dev);
 
         if (lchip) {
                 __locomo_remove(lchip);
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index 32924c6714fe..0c3cbd9a388b 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -153,7 +153,7 @@ int __init scoop_probe(struct platform_device *pdev)
         printk("Sharp Scoop Device found at 0x%08x -> 0x%08x\n",(unsigned int)mem->start,(unsigned int)devptr->base);
 
         SCOOP_REG(devptr->base, SCOOP_MCR) = 0x0140;
-        reset_scoop(dev);
+        reset_scoop(&pdev->dev);
         SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff;
         SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff;
 
diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c
index b0bbd1e62ebb..a2843be05557 100644
--- a/arch/arm/kernel/apm.c
+++ b/arch/arm/kernel/apm.c
@@ -20,6 +20,7 @@
 #include <linux/apm_bios.h>
 #include <linux/sched.h>
 #include <linux/pm.h>
+#include <linux/pm_legacy.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index e55ea952f7aa..373c0959bc2f 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -256,9 +256,7 @@ void __cpuexit cpu_die(void)
 asmlinkage void __cpuinit secondary_start_kernel(void)
 {
         struct mm_struct *mm = &init_mm;
-        unsigned int cpu;
-
-        cpu = smp_processor_id();
+        unsigned int cpu = smp_processor_id();
 
         printk("CPU%u: Booted secondary processor\n", cpu);
 
diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index dc09fd200c16..bbe6e4a0bf6a 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -132,14 +132,14 @@ void __init footbridge_init_irq(void)
 static struct map_desc fb_common_io_desc[] __initdata = {
         {
                 .virtual        = ARMCSR_BASE,
-                .pfn            = DC21285_ARMCSR_BASE,
+                .pfn            = __phys_to_pfn(DC21285_ARMCSR_BASE),
                 .length         = ARMCSR_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = XBUS_BASE,
                 .pfn            = __phys_to_pfn(0x40000000),
                 .length         = XBUS_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }
 };
 
@@ -153,28 +153,28 @@ static struct map_desc ebsa285_host_io_desc[] __initdata = {
                 .virtual        = PCIMEM_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_MEM),
                 .length         = PCIMEM_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = PCICFG0_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_TYPE_0_CONFIG),
                 .length         = PCICFG0_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = PCICFG1_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_TYPE_1_CONFIG),
                 .length         = PCICFG1_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = PCIIACK_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_IACK),
                 .length         = PCIIACK_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = PCIO_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_IO),
                 .length         = PCIO_SIZE,
-                .type           = MT_DEVICE
-        }
+                .type           = MT_DEVICE,
+        },
 #endif
 };
 
@@ -187,13 +187,13 @@ static struct map_desc co285_io_desc[] __initdata = {
                 .virtual        = PCIO_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_IO),
                 .length         = PCIO_SIZE,
-                .type           = MT_DEVICE
+                .type           = MT_DEVICE,
         }, {
                 .virtual        = PCIMEM_BASE,
                 .pfn            = __phys_to_pfn(DC21285_PCI_MEM),
                 .length         = PCIMEM_SIZE,
-                .type           = MT_DEVICE
-        }
+                .type           = MT_DEVICE,
+        },
 #endif
 };
 
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index e201aa9765b9..cd506646801a 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -72,6 +72,12 @@ config MACH_HUSKY
         depends PXA_SHARPSL_25x
         select PXA_SHARP_C7xx
 
+config MACH_AKITA
+        bool "Enable Sharp SL-1000 (Akita) Support"
+        depends PXA_SHARPSL_27x
+        select PXA_SHARP_Cxx00
+        select MACH_SPITZ
+
 config MACH_SPITZ
         bool "Enable Sharp Zaurus SL-3000 (Spitz) Support"
         depends PXA_SHARPSL_27x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index d210bd5032ce..32526a0a6f86 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -11,8 +11,9 @@ obj-$(CONFIG_PXA27x) += pxa27x.o
 obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o
 obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o
 obj-$(CONFIG_ARCH_PXA_IDP) += idp.o
-obj-$(CONFIG_PXA_SHARP_C7xx)    += corgi.o corgi_ssp.o corgi_lcd.o
-obj-$(CONFIG_PXA_SHARP_Cxx00)   += spitz.o corgi_ssp.o corgi_lcd.o
+obj-$(CONFIG_PXA_SHARP_C7xx)    += corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o corgi_pm.o
+obj-$(CONFIG_PXA_SHARP_Cxx00)   += spitz.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o spitz_pm.o
+obj-$(CONFIG_MACH_AKITA)        += akita-ioexp.o
 obj-$(CONFIG_MACH_POODLE)       += poodle.o
 obj-$(CONFIG_MACH_TOSA)         += tosa.o
 
diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c
new file mode 100644
index 000000000000..f6d73cc01f78
--- /dev/null
+++ b/arch/arm/mach-pxa/akita-ioexp.c
@@ -0,0 +1,223 @@
+/*
+ * Support for the Extra GPIOs on the Sharp SL-C1000 (Akita)
+ * (uses a Maxim MAX7310 8 Port IO Expander)
+ *
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <richard@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <asm/arch/akita.h>
+
+/* MAX7310 Regiser Map */
+#define MAX7310_INPUT    0x00
+#define MAX7310_OUTPUT   0x01
+#define MAX7310_POLINV   0x02
+#define MAX7310_IODIR    0x03 /* 1 = Input, 0 = Output */
+#define MAX7310_TIMEOUT  0x04
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
+
+/* I2C Magic */
+I2C_CLIENT_INSMOD;
+
+static int max7310_write(struct i2c_client *client, int address, int data);
+static struct i2c_client max7310_template;
+static void akita_ioexp_work(void *private_);
+
+static struct device *akita_ioexp_device;
+static unsigned char ioexp_output_value = AKITA_IOEXP_IO_OUT;
+DECLARE_WORK(akita_ioexp, akita_ioexp_work, NULL);
+
+
+/*
+ * MAX7310 Access
+ */
+static int max7310_config(struct device *dev, int iomode, int polarity)
+{
+        int ret;
+        struct i2c_client *client = to_i2c_client(dev);
+
+        ret = max7310_write(client, MAX7310_POLINV, polarity);
+        if (ret < 0)
+                return ret;
+        ret = max7310_write(client, MAX7310_IODIR, iomode);
+        return ret;
+}
+
+static int max7310_set_ouputs(struct device *dev, int outputs)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+
+        return max7310_write(client, MAX7310_OUTPUT, outputs);
+}
+
+/*
+ * I2C Functions
+ */
+static int max7310_write(struct i2c_client *client, int address, int value)
+{
+        u8 data[2];
+
+        data[0] = address & 0xff;
+        data[1] = value & 0xff;
+
+        if (i2c_master_send(client, data, 2) == 2)
+                return 0;
+        return -1;
+}
+
+static int max7310_detect(struct i2c_adapter *adapter, int address, int kind)
+{
+        struct i2c_client *new_client;
+        int err;
+
+        if (!(new_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
+                return -ENOMEM;
+
+        max7310_template.adapter = adapter;
+        max7310_template.addr = address;
+
+        memcpy(new_client, &max7310_template, sizeof(struct i2c_client));
+
+        if ((err = i2c_attach_client(new_client))) {
+                kfree(new_client);
+                return err;
+        }
+
+        max7310_config(&new_client->dev, AKITA_IOEXP_IO_DIR, 0);
+        akita_ioexp_device = &new_client->dev;
+        schedule_work(&akita_ioexp);
+
+        return 0;
+}
+
+static int max7310_attach_adapter(struct i2c_adapter *adapter)
+{
+        return i2c_probe(adapter, &addr_data, max7310_detect);
+}
+
+static int max7310_detach_client(struct i2c_client *client)
+{
+        int err;
+
+        akita_ioexp_device = NULL;
+
+        if ((err = i2c_detach_client(client)))
+                return err;
+
+        kfree(client);
+        return 0;
+}
+
+static struct i2c_driver max7310_i2c_driver = {
+        .owner          = THIS_MODULE,
+        .name           = "akita-max7310",
+        .id             = I2C_DRIVERID_AKITAIOEXP,
+        .flags          = I2C_DF_NOTIFY,
+        .attach_adapter = max7310_attach_adapter,
+        .detach_client  = max7310_detach_client,
+};
+
+static struct i2c_client max7310_template = {
+        name:   "akita-max7310",
+        flags:  I2C_CLIENT_ALLOW_USE,
+        driver: &max7310_i2c_driver,
+};
+
+void akita_set_ioexp(struct device *dev, unsigned char bit)
+{
+        ioexp_output_value |= bit;
+
+        if (akita_ioexp_device)
+                schedule_work(&akita_ioexp);
+        return;
+}
+
+void akita_reset_ioexp(struct device *dev, unsigned char bit)
+{
+        ioexp_output_value &= ~bit;
+
+        if (akita_ioexp_device)
+                schedule_work(&akita_ioexp);
+        return;
+}
+
+EXPORT_SYMBOL(akita_set_ioexp);
+EXPORT_SYMBOL(akita_reset_ioexp);
+
+static void akita_ioexp_work(void *private_)
+{
+        if (akita_ioexp_device)
+                max7310_set_ouputs(akita_ioexp_device, ioexp_output_value);
+}
+
+
+#ifdef CONFIG_PM
+static int akita_ioexp_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        flush_scheduled_work();
+        return 0;
+}
+
+static int akita_ioexp_resume(struct platform_device *pdev)
+{
+        schedule_work(&akita_ioexp);
+        return 0;
+}
+#else
+#define akita_ioexp_suspend NULL
+#define akita_ioexp_resume NULL
+#endif
+
+static int __init akita_ioexp_probe(struct platform_device *pdev)
+{
+        return i2c_add_driver(&max7310_i2c_driver);
+}
+
+static int akita_ioexp_remove(struct platform_device *pdev)
+{
+        i2c_del_driver(&max7310_i2c_driver);
+        return 0;
+}
+
+static struct platform_driver akita_ioexp_driver = {
+        .probe          = akita_ioexp_probe,
+        .remove         = akita_ioexp_remove,
+        .suspend        = akita_ioexp_suspend,
+        .resume         = akita_ioexp_resume,
+        .driver         = {
+                .name   = "akita-ioexp",
+        },
+};
+
+static int __init akita_ioexp_init(void)
+{
+        return platform_driver_register(&akita_ioexp_driver);
+}
+
+static void __exit akita_ioexp_exit(void)
+{
+        platform_driver_unregister(&akita_ioexp_driver);
+}
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
+MODULE_DESCRIPTION("Akita IO-Expander driver");
+MODULE_LICENSE("GPL");
+
+fs_initcall(akita_ioexp_init);
+module_exit(akita_ioexp_exit);
+
diff --git a/arch/arm/mach-pxa/corgi_pm.c b/arch/arm/mach-pxa/corgi_pm.c
new file mode 100644
index 000000000000..599be14754f9
--- /dev/null
+++ b/arch/arm/mach-pxa/corgi_pm.c
@@ -0,0 +1,228 @@
+/*
+ * Battery and Power Management code for the Sharp SL-C7xx
+ *
+ * Copyright (c) 2005 Richard Purdie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <asm/apm.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/hardware/scoop.h>
+
+#include <asm/arch/sharpsl.h>
+#include <asm/arch/corgi.h>
+#include <asm/arch/pxa-regs.h>
+#include "sharpsl.h"
+
+static void corgi_charger_init(void)
+{
+        pxa_gpio_mode(CORGI_GPIO_ADC_TEMP_ON | GPIO_OUT);
+        pxa_gpio_mode(CORGI_GPIO_CHRG_ON | GPIO_OUT);
+        pxa_gpio_mode(CORGI_GPIO_CHRG_UKN | GPIO_OUT);
+        pxa_gpio_mode(CORGI_GPIO_KEY_INT | GPIO_IN);
+}
+
+static void corgi_charge_led(int val)
+{
+        if (val == SHARPSL_LED_ERROR) {
+                dev_dbg(sharpsl_pm.dev, "Charge LED Error\n");
+        } else if (val == SHARPSL_LED_ON) {
+                dev_dbg(sharpsl_pm.dev, "Charge LED On\n");
+                GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
+        } else {
+                dev_dbg(sharpsl_pm.dev, "Charge LED Off\n");
+                GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
+        }
+}
+
+static void corgi_measure_temp(int on)
+{
+        if (on)
+                GPSR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
+        else
+                GPCR(CORGI_GPIO_ADC_TEMP_ON) = GPIO_bit(CORGI_GPIO_ADC_TEMP_ON);
+}
+
+static void corgi_charge(int on)
+{
+        if (on) {
+                if (machine_is_corgi() && (sharpsl_pm.flags & SHARPSL_SUSPENDED)) {
+                        GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+                        GPSR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+                } else {
+                        GPSR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+                        GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+                }
+        } else {
+                GPCR(CORGI_GPIO_CHRG_ON) = GPIO_bit(CORGI_GPIO_CHRG_ON);
+                GPCR(CORGI_GPIO_CHRG_UKN) = GPIO_bit(CORGI_GPIO_CHRG_UKN);
+        }
+}
+
+static void corgi_discharge(int on)
+{
+        if (on)
+                GPSR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
+        else
+                GPCR(CORGI_GPIO_DISCHARGE_ON) = GPIO_bit(CORGI_GPIO_DISCHARGE_ON);
+}
+
+static void corgi_presuspend(void)
+{
+        int i;
+        unsigned long wakeup_mask;
+
+        /* charging , so CHARGE_ON bit is HIGH during OFF. */
+        if (READ_GPIO_BIT(CORGI_GPIO_CHRG_ON))
+                PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_ON);
+        else
+                PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_ON);
+
+        if (READ_GPIO_BIT(CORGI_GPIO_LED_ORANGE))
+                PGSR0 |= GPIO_bit(CORGI_GPIO_LED_ORANGE);
+        else
+                PGSR0 &= ~GPIO_bit(CORGI_GPIO_LED_ORANGE);
+
+        if (READ_GPIO_BIT(CORGI_GPIO_CHRG_UKN))
+                PGSR1 |= GPIO_bit(CORGI_GPIO_CHRG_UKN);
+        else
+                PGSR1 &= ~GPIO_bit(CORGI_GPIO_CHRG_UKN);
+
+        /* Resume on keyboard power key */
+        PGSR2 = (PGSR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(0);
+
+        wakeup_mask = GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) | GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_CHRG_FULL);
+
+        if (!machine_is_corgi())
+                wakeup_mask |= GPIO_bit(CORGI_GPIO_MAIN_BAT_LOW);
+
+        PWER = wakeup_mask | PWER_RTC;
+        PRER = wakeup_mask;
+        PFER = wakeup_mask;
+
+        for (i = 0; i <=15; i++) {
+                if (PRER & PFER & GPIO_bit(i)) {
+                        if (GPLR0 & GPIO_bit(i) )
+                                PRER &= ~GPIO_bit(i);
+                        else
+                                PFER &= ~GPIO_bit(i);
+                }
+        }
+}
+
+static void corgi_postsuspend(void)
+{
+}
+
+/*
+ * Check what brought us out of the suspend.
+ * Return: 0 to sleep, otherwise wake
+ */
+static int corgi_should_wakeup(unsigned int resume_on_alarm)
+{
+        int is_resume = 0;
+
+        dev_dbg(sharpsl_pm.dev, "GPLR0 = %x,%x\n", GPLR0, PEDR);
+
+        if ((PEDR & GPIO_bit(CORGI_GPIO_AC_IN))) {
+                if (STATUS_AC_IN()) {
+                        /* charge on */
+                        dev_dbg(sharpsl_pm.dev, "ac insert\n");
+                        sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
+                } else {
+                        /* charge off */
+                        dev_dbg(sharpsl_pm.dev, "ac remove\n");
+                        CHARGE_LED_OFF();
+                        CHARGE_OFF();
+                        sharpsl_pm.charge_mode = CHRG_OFF;
+                }
+        }
+
+        if ((PEDR & GPIO_bit(CORGI_GPIO_CHRG_FULL)))
+                dev_dbg(sharpsl_pm.dev, "Charge full interrupt\n");
+
+        if (PEDR & GPIO_bit(CORGI_GPIO_KEY_INT))
+                is_resume |= GPIO_bit(CORGI_GPIO_KEY_INT);
+
+        if (PEDR & GPIO_bit(CORGI_GPIO_WAKEUP))
+                is_resume |= GPIO_bit(CORGI_GPIO_WAKEUP);
+
+        if (resume_on_alarm && (PEDR & PWER_RTC))
+                is_resume |= PWER_RTC;
+
+        dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
+        return is_resume;
+}
+
+static unsigned long corgi_charger_wakeup(void)
+{
+        return ~GPLR0 & ( GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) );
+}
+
+static int corgi_acin_status(void)
+{
+        return ((GPLR(CORGI_GPIO_AC_IN) & GPIO_bit(CORGI_GPIO_AC_IN)) != 0);
+}
+
+static struct sharpsl_charger_machinfo corgi_pm_machinfo = {
+        .init            = corgi_charger_init,
+        .gpio_batlock    = CORGI_GPIO_BAT_COVER,
+        .gpio_acin       = CORGI_GPIO_AC_IN,
+        .gpio_batfull    = CORGI_GPIO_CHRG_FULL,
+        .status_acin     = corgi_acin_status,
+        .discharge       = corgi_discharge,
+        .charge          = corgi_charge,
+        .chargeled       = corgi_charge_led,
+        .measure_temp    = corgi_measure_temp,
+        .presuspend      = corgi_presuspend,
+        .postsuspend     = corgi_postsuspend,
+        .charger_wakeup  = corgi_charger_wakeup,
+        .should_wakeup   = corgi_should_wakeup,
+        .bat_levels      = 40,
+        .bat_levels_noac = spitz_battery_levels_noac,
+        .bat_levels_acin = spitz_battery_levels_acin,
+        .status_high_acin = 188,
+        .status_low_acin  = 178,
+        .status_high_noac = 185,
+        .status_low_noac  = 175,
+};
+
+static struct platform_device *corgipm_device;
+
+static int __devinit corgipm_init(void)
+{
+        int ret;
+
+        corgipm_device = platform_device_alloc("sharpsl-pm", -1);
+        if (!corgipm_device)
+                return -ENOMEM;
+
+        corgipm_device->dev.platform_data = &corgi_pm_machinfo;
+        ret = platform_device_add(corgipm_device);
+
+        if (ret)
+                platform_device_put(corgipm_device);
+
+        return ret;
+}
+
+static void corgipm_exit(void)
+{
+        platform_device_unregister(corgipm_device);
+}
+
+module_init(corgipm_init);
+module_exit(corgipm_exit);
diff --git a/arch/arm/mach-pxa/sharpsl.h b/arch/arm/mach-pxa/sharpsl.h
index 4879c0f7da72..b0c40a1d6671 100644
--- a/arch/arm/mach-pxa/sharpsl.h
+++ b/arch/arm/mach-pxa/sharpsl.h
@@ -115,7 +115,7 @@ extern struct battery_thresh spitz_battery_levels_noac[];
 #define CHARGE_LED_ERR()    sharpsl_pm.machinfo->chargeled(SHARPSL_LED_ERROR)
 #define DISCHARGE_ON()      sharpsl_pm.machinfo->discharge(1)
 #define DISCHARGE_OFF()     sharpsl_pm.machinfo->discharge(0)
-#define STATUS_AC_IN        sharpsl_pm.machinfo->status_acin()
-#define STATUS_BATT_LOCKED  READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock)
-#define STATUS_CHRG_FULL    READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull)
-#define STATUS_FATAL        READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal)
+#define STATUS_AC_IN()      sharpsl_pm.machinfo->status_acin()
+#define STATUS_BATT_LOCKED()  READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batlock)
+#define STATUS_CHRG_FULL()  READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_batfull)
+#define STATUS_FATAL()      READ_GPIO_BIT(sharpsl_pm.machinfo->gpio_fatal)
diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 6c9e871c53d8..c10be00fb526 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -21,7 +21,7 @@
 #include <linux/apm_bios.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 
 #include <asm/hardware.h>
 #include <asm/hardware/scoop.h>
@@ -45,15 +45,15 @@
 #define SHARPSL_WAIT_DISCHARGE_ON              100 /* 100 msec */
 #define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP   10  /* 10 msec */
 #define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT   10  /* 10 msec */
-#define SHARPSL_CHECK_BATTERY_WAIT_TIME_JKVAD  10  /* 10 msec */
+#define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN   10  /* 10 msec */
 #define SHARPSL_CHARGE_WAIT_TIME               15  /* 15 msec */
 #define SHARPSL_CHARGE_CO_CHECK_TIME           5   /* 5 msec */
 #define SHARPSL_CHARGE_RETRY_CNT               1   /* eqv. 10 min */
 
 #define SHARPSL_CHARGE_ON_VOLT         0x99  /* 2.9V */
 #define SHARPSL_CHARGE_ON_TEMP         0xe0  /* 2.9V */
-#define SHARPSL_CHARGE_ON_JKVAD_HIGH   0x9b  /* 6V */
-#define SHARPSL_CHARGE_ON_JKVAD_LOW    0x34  /* 2V */
+#define SHARPSL_CHARGE_ON_ACIN_HIGH    0x9b  /* 6V */
+#define SHARPSL_CHARGE_ON_ACIN_LOW     0x34  /* 2V */
 #define SHARPSL_FATAL_ACIN_VOLT        182   /* 3.45V */
 #define SHARPSL_FATAL_NOACIN_VOLT      170   /* 3.40V */
 
@@ -160,9 +160,10 @@ struct battery_thresh  spitz_battery_levels_noac[] = {
 /*
  * Prototypes
  */
-static int sharpsl_read_MainBattery(void);
+static int sharpsl_read_main_battery(void);
 static int sharpsl_off_charge_battery(void);
-static int sharpsl_check_battery(int mode);
+static int sharpsl_check_battery_temp(void);
+static int sharpsl_check_battery_voltage(void);
 static int sharpsl_ac_check(void);
 static int sharpsl_fatal_check(void);
 static int sharpsl_average_value(int ad);
@@ -228,7 +229,7 @@ static void sharpsl_battery_thread(void *private_)
         if (!sharpsl_pm.machinfo)
                 return;
 
-        sharpsl_pm.battstat.ac_status = (!(STATUS_AC_IN) ? APM_AC_OFFLINE : APM_AC_ONLINE);
+        sharpsl_pm.battstat.ac_status = (STATUS_AC_IN() ? APM_AC_ONLINE : APM_AC_OFFLINE);
 
         /* Corgi cannot confirm when battery fully charged so periodically kick! */
         if (machine_is_corgi() && (sharpsl_pm.charge_mode == CHRG_ON)
@@ -236,7 +237,7 @@ static void sharpsl_battery_thread(void *private_)
                 schedule_work(&toggle_charger);
 
         while(1) {
-                voltage = sharpsl_read_MainBattery();
+                voltage = sharpsl_read_main_battery();
                 if (voltage > 0) break;
                 if (i++ > 5) {
                         voltage = sharpsl_pm.machinfo->bat_levels_noac[0].voltage;
@@ -317,10 +318,10 @@ static void sharpsl_charge_toggle(void *private_)
 {
         dev_dbg(sharpsl_pm.dev, "Toogling Charger at time: %lx\n", jiffies);
 
-        if (STATUS_AC_IN == 0) {
+        if (STATUS_AC_IN() == 0) {
                 sharpsl_charge_off();
                 return;
-        } else if ((sharpsl_check_battery(1) < 0) || (sharpsl_ac_check() < 0)) {
+        } else if ((sharpsl_check_battery_temp() < 0) || (sharpsl_ac_check() < 0)) {
                 sharpsl_charge_error();
                 return;
         }
@@ -335,7 +336,7 @@ static void sharpsl_charge_toggle(void *private_)
 
 static void sharpsl_ac_timer(unsigned long data)
 {
-        int acin = STATUS_AC_IN;
+        int acin = STATUS_AC_IN();
 
         dev_dbg(sharpsl_pm.dev, "AC Status: %d\n",acin);
 
@@ -364,7 +365,7 @@ static void sharpsl_chrg_full_timer(unsigned long data)
 
         sharpsl_pm.full_count++;
 
-        if (STATUS_AC_IN == 0) {
+        if (STATUS_AC_IN() == 0) {
                 dev_dbg(sharpsl_pm.dev, "Charge Full: AC removed - stop charging!\n");
                 if (sharpsl_pm.charge_mode == CHRG_ON)
                         sharpsl_charge_off();
@@ -399,12 +400,12 @@ static irqreturn_t sharpsl_fatal_isr(int irq, void *dev_id, struct pt_regs *fp)
 {
         int is_fatal = 0;
 
-        if (STATUS_BATT_LOCKED == 0) {
+        if (STATUS_BATT_LOCKED() == 0) {
                 dev_err(sharpsl_pm.dev, "Battery now Unlocked! Suspending.\n");
                 is_fatal = 1;
         }
 
-        if (sharpsl_pm.machinfo->gpio_fatal && (STATUS_FATAL == 0)) {
+        if (sharpsl_pm.machinfo->gpio_fatal && (STATUS_FATAL() == 0)) {
                 dev_err(sharpsl_pm.dev, "Fatal Batt Error! Suspending.\n");
                 is_fatal = 1;
         }
@@ -461,12 +462,12 @@ static int read_max1111(int channel)
                         | MAXCTRL_SGL | MAXCTRL_UNI | MAXCTRL_STR);
 }
 
-static int sharpsl_read_MainBattery(void)
+static int sharpsl_read_main_battery(void)
 {
         return read_max1111(BATT_AD);
 }
 
-static int sharpsl_read_Temp(void)
+static int sharpsl_read_temp(void)
 {
         int temp;
 
@@ -480,7 +481,7 @@ static int sharpsl_read_Temp(void)
         return temp;
 }
 
-static int sharpsl_read_jkvad(void)
+static int sharpsl_read_acin(void)
 {
         return read_max1111(JK_VAD);
 }
@@ -522,16 +523,14 @@ static int get_select_val(int *val)
         return (sum/3);
 }
 
-/*  mode 0 - Check temperature and voltage
- *       1 - Check temperature only */
-static int sharpsl_check_battery(int mode)
+static int sharpsl_check_battery_temp(void)
 {
         int val, i, buff[5];
 
         /* Check battery temperature */
         for (i=0; i<5; i++) {
                 mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP);
-                buff[i] = sharpsl_read_Temp();
+                buff[i] = sharpsl_read_temp();
         }
 
         val = get_select_val(buff);
@@ -539,8 +538,13 @@ static int sharpsl_check_battery(int mode)
         dev_dbg(sharpsl_pm.dev, "Temperature: %d\n", val);
         if (val > SHARPSL_CHARGE_ON_TEMP)
                 return -1;
-        if (mode == 1)
-                return 0;
+
+        return 0;
+}
+
+static int sharpsl_check_battery_voltage(void)
+{
+        int val, i, buff[5];
 
         /* disable charge, enable discharge */
         CHARGE_OFF();
@@ -552,7 +556,7 @@ static int sharpsl_check_battery(int mode)
 
         /* Check battery voltage */
         for (i=0; i<5; i++) {
-                buff[i] = sharpsl_read_MainBattery();
+                buff[i] = sharpsl_read_main_battery();
                 mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT);
         }
 
@@ -575,14 +579,14 @@ static int sharpsl_ac_check(void)
         int temp, i, buff[5];
 
         for (i=0; i<5; i++) {
-                buff[i] = sharpsl_read_jkvad();
-                mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_JKVAD);
+                buff[i] = sharpsl_read_acin();
+                mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN);
         }
 
         temp = get_select_val(buff);
         dev_dbg(sharpsl_pm.dev, "AC Voltage: %d\n",temp);
 
-        if ((temp > SHARPSL_CHARGE_ON_JKVAD_HIGH) || (temp < SHARPSL_CHARGE_ON_JKVAD_LOW)) {
+        if ((temp > SHARPSL_CHARGE_ON_ACIN_HIGH) || (temp < SHARPSL_CHARGE_ON_ACIN_LOW)) {
                 dev_err(sharpsl_pm.dev, "Error: AC check failed.\n");
                 return -1;
         }
@@ -591,7 +595,7 @@ static int sharpsl_ac_check(void)
 }
 
 #ifdef CONFIG_PM
-static int sharpsl_pm_suspend(struct device *dev, pm_message_t state)
+static int sharpsl_pm_suspend(struct platform_device *pdev, pm_message_t state)
 {
         sharpsl_pm.flags |= SHARPSL_SUSPENDED;
         flush_scheduled_work();
@@ -604,7 +608,7 @@ static int sharpsl_pm_suspend(struct device *dev, pm_message_t state)
         return 0;
 }
 
-static int sharpsl_pm_resume(struct device *dev)
+static int sharpsl_pm_resume(struct platform_device *pdev)
 {
         /* Clear the reset source indicators as they break the bootloader upon reboot */
         RCSR = 0x0f;
@@ -622,7 +626,7 @@ static void corgi_goto_sleep(unsigned long alarm_time, unsigned int alarm_enable
         dev_dbg(sharpsl_pm.dev, "Offline Charge Activate = %d\n",sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG);
         /* not charging and AC-IN! */
 
-        if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (STATUS_AC_IN != 0)) {
+        if ((sharpsl_pm.flags & SHARPSL_DO_OFFLINE_CHRG) && (STATUS_AC_IN() != 0)) {
                 dev_dbg(sharpsl_pm.dev, "Activating Offline Charger...\n");
                 sharpsl_pm.charge_mode = CHRG_OFF;
                 sharpsl_pm.flags &= ~SHARPSL_DO_OFFLINE_CHRG;
@@ -671,7 +675,7 @@ static int corgi_enter_suspend(unsigned long alarm_time, unsigned int alarm_enab
                 dev_dbg(sharpsl_pm.dev, "User triggered wakeup in offline charger.\n");
         }
 
-        if ((STATUS_BATT_LOCKED == 0) || (sharpsl_fatal_check() < 0) )
+        if ((STATUS_BATT_LOCKED() == 0) || (sharpsl_fatal_check() < 0) )
         {
                 dev_err(sharpsl_pm.dev, "Fatal condition. Suspend.\n");
                 corgi_goto_sleep(alarm_time, alarm_enable, state);
@@ -711,7 +715,7 @@ static int sharpsl_fatal_check(void)
         dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check entered\n");
 
         /* Check AC-Adapter */
-        acin = STATUS_AC_IN;
+        acin = STATUS_AC_IN();
 
         if (acin && (sharpsl_pm.charge_mode == CHRG_ON)) {
                 CHARGE_OFF();
@@ -725,7 +729,7 @@ static int sharpsl_fatal_check(void)
 
         /* Check battery : check inserting battery ? */
         for (i=0; i<5; i++) {
-                buff[i] = sharpsl_read_MainBattery();
+                buff[i] = sharpsl_read_main_battery();
                 mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT);
         }
 
@@ -739,7 +743,7 @@ static int sharpsl_fatal_check(void)
         }
 
         temp = get_select_val(buff);
-        dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check: acin: %d, discharge voltage: %d, no discharge: %d\n", acin, temp, sharpsl_read_MainBattery());
+        dev_dbg(sharpsl_pm.dev, "sharpsl_fatal_check: acin: %d, discharge voltage: %d, no discharge: %d\n", acin, temp, sharpsl_read_main_battery());
 
         if ((acin && (temp < SHARPSL_FATAL_ACIN_VOLT)) ||
                         (!acin && (temp < SHARPSL_FATAL_NOACIN_VOLT)))
@@ -771,7 +775,7 @@ static int sharpsl_off_charge_battery(void)
                 dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 1\n");
 
                 /* AC Check */
-                if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery(1) < 0))
+                if ((sharpsl_ac_check() < 0) || (sharpsl_check_battery_temp() < 0))
                         return sharpsl_off_charge_error();
 
                 /* Start Charging */
@@ -793,7 +797,7 @@ static int sharpsl_off_charge_battery(void)
 
                 dev_dbg(sharpsl_pm.dev, "Offline Charger: Step 2\n");
 
-                if (sharpsl_check_battery(0) < 0)
+                if ((sharpsl_check_battery_temp() < 0) || (sharpsl_check_battery_voltage() < 0))
                         return sharpsl_off_charge_error();
 
                 CHARGE_OFF();
@@ -811,7 +815,7 @@ static int sharpsl_off_charge_battery(void)
                         /* Check for timeout */
                         if ((RCNR - time) > SHARPSL_WAIT_CO_TIME)
                                 return 1;
-                        if (STATUS_CHRG_FULL) {
+                        if (STATUS_CHRG_FULL()) {
                                 dev_dbg(sharpsl_pm.dev, "Offline Charger: Charge full occured. Retrying to check\n");
                                 sharpsl_pm.full_count++;
                                 CHARGE_OFF();
@@ -840,7 +844,7 @@ static int sharpsl_off_charge_battery(void)
                         sharpsl_pm.full_count++;
                         return 1;
                 }
-                if (STATUS_CHRG_FULL) {
+                if (STATUS_CHRG_FULL()) {
                         dev_dbg(sharpsl_pm.dev, "Offline Charger: Charging complete.\n");
                         CHARGE_LED_OFF();
                         CHARGE_OFF();
@@ -886,13 +890,13 @@ static struct pm_ops sharpsl_pm_ops = {
         .finish         = pxa_pm_finish,
 };
 
-static int __init sharpsl_pm_probe(struct device *dev)
+static int __init sharpsl_pm_probe(struct platform_device *pdev)
 {
-        if (!dev->platform_data)
+        if (!pdev->dev.platform_data)
                 return -EINVAL;
 
-        sharpsl_pm.dev = dev;
-        sharpsl_pm.machinfo = dev->platform_data;
+        sharpsl_pm.dev = &pdev->dev;
+        sharpsl_pm.machinfo = pdev->dev.platform_data;
         sharpsl_pm.charge_mode = CHRG_OFF;
         sharpsl_pm.flags = 0;
 
@@ -935,8 +939,8 @@ static int __init sharpsl_pm_probe(struct device *dev)
                 else set_irq_type(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull),IRQT_RISING);
         }
 
-        device_create_file(dev, &dev_attr_battery_percentage);
-        device_create_file(dev, &dev_attr_battery_voltage);
+        device_create_file(&pdev->dev, &dev_attr_battery_percentage);
+        device_create_file(&pdev->dev, &dev_attr_battery_voltage);
 
         apm_get_power_status = sharpsl_apm_get_power_status;
 
@@ -947,12 +951,12 @@ static int __init sharpsl_pm_probe(struct device *dev)
         return 0;
 }
 
-static int sharpsl_pm_remove(struct device *dev)
+static int sharpsl_pm_remove(struct platform_device *pdev)
 {
         pm_set_ops(NULL);
 
-        device_remove_file(dev, &dev_attr_battery_percentage);
-        device_remove_file(dev, &dev_attr_battery_voltage);
+        device_remove_file(&pdev->dev, &dev_attr_battery_percentage);
+        device_remove_file(&pdev->dev, &dev_attr_battery_voltage);
 
         free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr);
         free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr);
@@ -969,23 +973,24 @@ static int sharpsl_pm_remove(struct device *dev)
         return 0;
 }
 
-static struct device_driver sharpsl_pm_driver = {
-        .name           = "sharpsl-pm",
-        .bus            = &platform_bus_type,
+static struct platform_driver sharpsl_pm_driver = {
         .probe          = sharpsl_pm_probe,
         .remove         = sharpsl_pm_remove,
         .suspend        = sharpsl_pm_suspend,
         .resume         = sharpsl_pm_resume,
+        .driver         = {
+                .name           = "sharpsl-pm",
+        },
 };
 
 static int __devinit sharpsl_pm_init(void)
 {
-        return driver_register(&sharpsl_pm_driver);
+        return platform_driver_register(&sharpsl_pm_driver);
 }
 
 static void sharpsl_pm_exit(void)
 {
-        driver_unregister(&sharpsl_pm_driver);
+        platform_driver_unregister(&sharpsl_pm_driver);
 }
 
 late_initcall(sharpsl_pm_init);
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 4e9a699ee428..2df1b56615b1 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -345,6 +345,16 @@ static void spitz_irda_transceiver_mode(struct device *dev, int mode)
                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 }
 
+#ifdef CONFIG_MACH_AKITA
+static void akita_irda_transceiver_mode(struct device *dev, int mode)
+{
+        if (mode & IR_OFF)
+                akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
+        else
+                akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
+}
+#endif
+
 static struct pxaficp_platform_data spitz_ficp_platform_data = {
         .transceiver_cap  = IR_SIRMODE | IR_OFF,
         .transceiver_mode = spitz_irda_transceiver_mode,
@@ -417,6 +427,32 @@ static void __init spitz_init(void)
         platform_device_register(&spitzscoop2_device);
 }
 
+#ifdef CONFIG_MACH_AKITA
+/*
+ * Akita IO Expander
+ */
+struct platform_device akitaioexp_device = {
+        .name           = "akita-ioexp",
+        .id             = -1,
+};
+
+static void __init akita_init(void)
+{
+        spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
+
+        /* We just pretend the second element of the array doesn't exist */
+        spitz_pcmcia_config.num_devs = 1;
+        platform_scoop_config = &spitz_pcmcia_config;
+        spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
+
+        platform_device_register(&akitaioexp_device);
+
+        spitzscoop_device.dev.parent = &akitaioexp_device.dev;
+        common_init();
+}
+#endif
+
+
 static void __init fixup_spitz(struct machine_desc *desc,
                 struct tag *tags, char **cmdline, struct meminfo *mi)
 {
@@ -452,3 +488,16 @@ MACHINE_START(BORZOI, "SHARP Borzoi")
         .timer          = &pxa_timer,
 MACHINE_END
 #endif
+
+#ifdef CONFIG_MACH_AKITA
+MACHINE_START(AKITA, "SHARP Akita")
+        .phys_ram       = 0xa0000000,
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .fixup          = fixup_spitz,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa_init_irq,
+        .init_machine   = akita_init,
+        .timer          = &pxa_timer,
+MACHINE_END
+#endif
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
new file mode 100644
index 000000000000..3ce7486daa51
--- /dev/null
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -0,0 +1,233 @@
+/*
+ * Battery and Power Management code for the Sharp SL-Cxx00
+ *
+ * Copyright (c) 2005 Richard Purdie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <asm/apm.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/hardware/scoop.h>
+
+#include <asm/arch/sharpsl.h>
+#include <asm/arch/spitz.h>
+#include <asm/arch/pxa-regs.h>
+#include "sharpsl.h"
+
+static int spitz_last_ac_status;
+
+static void spitz_charger_init(void)
+{
+        pxa_gpio_mode(SPITZ_GPIO_KEY_INT | GPIO_IN);
+        pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN);
+}
+
+static void spitz_charge_led(int val)
+{
+        if (val == SHARPSL_LED_ERROR) {
+                dev_dbg(sharpsl_pm.dev, "Charge LED Error\n");
+        } else if (val == SHARPSL_LED_ON) {
+                dev_dbg(sharpsl_pm.dev, "Charge LED On\n");
+                set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
+        } else {
+                dev_dbg(sharpsl_pm.dev, "Charge LED Off\n");
+                reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
+        }
+}
+
+static void spitz_measure_temp(int on)
+{
+        if (on)
+                set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_ADC_TEMP_ON);
+        else
+                reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_ADC_TEMP_ON);
+}
+
+static void spitz_charge(int on)
+{
+        if (on) {
+                if (sharpsl_pm.flags & SHARPSL_SUSPENDED) {
+                        set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_JK_B);
+                        reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CHRG_ON);
+                } else {
+                        reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_JK_B);
+                        reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CHRG_ON);
+                }
+        } else {
+                reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_JK_B);
+                set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CHRG_ON);
+        }
+}
+
+static void spitz_discharge(int on)
+{
+        if (on)
+                set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_JK_A);
+        else
+                reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_JK_A);
+}
+
+/* HACK - For unknown reasons, accurate voltage readings are only made with a load
+   on the power bus which the green led on spitz provides */
+static void spitz_discharge1(int on)
+{
+        if (on)
+                set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
+        else
+                reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
+}
+
+static void spitz_presuspend(void)
+{
+        spitz_last_ac_status = STATUS_AC_IN();
+
+        /* GPIO Sleep Register */
+        PGSR0 = 0x00144018;
+        PGSR1 = 0x00EF0000;
+        if (machine_is_akita()) {
+                PGSR2 = 0x2121C000;
+                PGSR3 = 0x00600400;
+        } else {
+                PGSR2 = 0x0121C000;
+                PGSR3 = 0x00600000;
+        }
+
+        PGSR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
+        PGSR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
+        PGSR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
+        PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
+        PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0);
+
+        pxa_gpio_mode(GPIO18_RDY|GPIO_OUT | GPIO_DFLT_HIGH);
+
+        PRER = GPIO_bit(SPITZ_GPIO_KEY_INT);
+        PFER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
+        PWER = GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET) | PWER_RTC;
+        PKWR = GPIO_bit(SPITZ_GPIO_SYNC) | GPIO_bit(SPITZ_GPIO_KEY_INT) | GPIO_bit(SPITZ_GPIO_RESET);
+        PKSR = 0xffffffff; // clear
+
+        /* nRESET_OUT Disable */
+        PSLR |= PSLR_SL_ROD;
+
+        /* Clear reset status */
+        RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
+
+        /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
+        PCFR = PCFR_GPR_EN | PCFR_OPDE;
+}
+
+static void spitz_postsuspend(void)
+{
+        pxa_gpio_mode(GPIO18_RDY_MD);
+        pxa_gpio_mode(10 | GPIO_IN);
+}
+
+static int spitz_should_wakeup(unsigned int resume_on_alarm)
+{
+        int is_resume = 0;
+        int acin = STATUS_AC_IN();
+
+        if (spitz_last_ac_status != acin) {
+                if (acin) {
+                        /* charge on */
+                        sharpsl_pm.flags |= SHARPSL_DO_OFFLINE_CHRG;
+                        dev_dbg(sharpsl_pm.dev, "AC Inserted\n");
+                } else {
+                        /* charge off */
+                        dev_dbg(sharpsl_pm.dev, "AC Removed\n");
+                        CHARGE_LED_OFF();
+                        CHARGE_OFF();
+                        sharpsl_pm.charge_mode = CHRG_OFF;
+                }
+                spitz_last_ac_status = acin;
+                /* Return to suspend as this must be what we were woken for */
+                return 0;
+        }
+
+        if (PEDR & GPIO_bit(SPITZ_GPIO_KEY_INT))
+                is_resume |= GPIO_bit(SPITZ_GPIO_KEY_INT);
+
+        if (PKSR & GPIO_bit(SPITZ_GPIO_SYNC))
+                is_resume |= GPIO_bit(SPITZ_GPIO_SYNC);
+
+        if (resume_on_alarm && (PEDR & PWER_RTC))
+                is_resume |= PWER_RTC;
+
+        dev_dbg(sharpsl_pm.dev, "is_resume: %x\n",is_resume);
+        return is_resume;
+}
+
+static unsigned long spitz_charger_wakeup(void)
+{
+        return (~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 & GPIO_bit(SPITZ_GPIO_SYNC));
+}
+
+static int spitz_acin_status(void)
+{
+        return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0);
+}
+
+struct sharpsl_charger_machinfo spitz_pm_machinfo = {
+        .init             = spitz_charger_init,
+        .gpio_batlock     = SPITZ_GPIO_BAT_COVER,
+        .gpio_acin        = SPITZ_GPIO_AC_IN,
+        .gpio_batfull     = SPITZ_GPIO_CHRG_FULL,
+        .gpio_fatal       = SPITZ_GPIO_FATAL_BAT,
+        .status_acin      = spitz_acin_status,
+        .discharge        = spitz_discharge,
+        .discharge1       = spitz_discharge1,
+        .charge           = spitz_charge,
+        .chargeled        = spitz_charge_led,
+        .measure_temp     = spitz_measure_temp,
+        .presuspend       = spitz_presuspend,
+        .postsuspend      = spitz_postsuspend,
+        .charger_wakeup   = spitz_charger_wakeup,
+        .should_wakeup    = spitz_should_wakeup,
+        .bat_levels       = 40,
+        .bat_levels_noac  = spitz_battery_levels_noac,
+        .bat_levels_acin  = spitz_battery_levels_acin,
+        .status_high_acin = 188,
+        .status_low_acin  = 178,
+        .status_high_noac = 185,
+        .status_low_noac  = 175,
+};
+
+static struct platform_device *spitzpm_device;
+
+static int __devinit spitzpm_init(void)
+{
+        int ret;
+
+        spitzpm_device = platform_device_alloc("sharpsl-pm", -1);
+        if (!spitzpm_device)
+                return -ENOMEM;
+
+        spitzpm_device->dev.platform_data = &spitz_pm_machinfo;
+        ret = platform_device_add(spitzpm_device);
+
+        if (ret)
+                platform_device_put(spitzpm_device);
+
+        return ret;
+}
+
+static void spitzpm_exit(void)
+{
+        platform_device_unregister(spitzpm_device);
+}
+
+module_init(spitzpm_init);
+module_exit(spitzpm_exit);
diff --git a/arch/frv/kernel/pm.c b/arch/frv/kernel/pm.c
index 1a1e8a119c3d..712c3c24c954 100644
--- a/arch/frv/kernel/pm.c
+++ b/arch/frv/kernel/pm.c
@@ -14,6 +14,7 @@
 #include <linux/config.h>
 #include <linux/init.h>
 #include <linux/pm.h>
+#include <linux/pm_legacy.h>
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/sysctl.h>
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index dbf90ad6eac3..6004bb0795e0 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -699,7 +699,7 @@ depends on PM && !X86_VISWS
 
 config APM
         tristate "APM (Advanced Power Management) BIOS support"
-        depends on PM
+        depends on PM && PM_LEGACY
         ---help---
           APM is a BIOS specification for saving power using several different
           techniques. This is mostly useful for battery powered laptops with
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index b66c13c0cc0f..f36677241ecd 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -39,17 +39,14 @@
 
 #ifdef  CONFIG_X86_64
 
-static inline void acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
-}
 extern void __init clustered_apic_check(void);
-static inline int ioapic_setup_disabled(void)
-{
-        return 0;
-}
 
+extern int gsi_irq_sharing(int gsi);
 #include <asm/proto.h>
 
+static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; }
+
+
 #else                           /* X86 */
 
 #ifdef  CONFIG_X86_LOCAL_APIC
@@ -57,6 +54,8 @@ static inline int ioapic_setup_disabled(void)
 #include <mach_mpparse.h>
 #endif                          /* CONFIG_X86_LOCAL_APIC */
 
+static inline int gsi_irq_sharing(int gsi) { return gsi; }
+
 #endif                          /* X86 */
 
 #define BAD_MADT_ENTRY(entry, end) (                                        \
@@ -459,7 +458,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
                 *irq = IO_APIC_VECTOR(gsi);
         else
 #endif
-                *irq = gsi;
+                *irq = gsi_irq_sharing(gsi);
         return 0;
 }
 
@@ -543,7 +542,7 @@ acpi_scan_rsdp(unsigned long start, unsigned long length)
          * RSDP signature.
          */
         for (offset = 0; offset < length; offset += 16) {
-                if (strncmp((char *)(start + offset), "RSD PTR ", sig_len))
+                if (strncmp((char *)(phys_to_virt(start) + offset), "RSD PTR ", sig_len))
                         continue;
                 return (start + offset);
         }
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 003548b8735f..1e60acbed3c1 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -218,6 +218,7 @@
 #include <linux/time.h>
 #include <linux/sched.h>
 #include <linux/pm.h>
+#include <linux/pm_legacy.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/smp.h>
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 53a1681cd964..e344ef88cfcd 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -206,9 +206,9 @@ static void __init init_amd(struct cpuinfo_x86 *c)
         display_cacheinfo(c);
 
         if (cpuid_eax(0x80000000) >= 0x80000008) {
-                c->x86_num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
-                if (c->x86_num_cores & (c->x86_num_cores - 1))
-                        c->x86_num_cores = 1;
+                c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
+                if (c->x86_max_cores & (c->x86_max_cores - 1))
+                        c->x86_max_cores = 1;
         }
 
 #ifdef CONFIG_X86_HT
@@ -217,15 +217,15 @@ static void __init init_amd(struct cpuinfo_x86 *c)
          * distingush the cores.  Assumes number of cores is a power
          * of two.
          */
-        if (c->x86_num_cores > 1) {
+        if (c->x86_max_cores > 1) {
                 int cpu = smp_processor_id();
                 unsigned bits = 0;
-                while ((1 << bits) < c->x86_num_cores)
+                while ((1 << bits) < c->x86_max_cores)
                         bits++;
                 cpu_core_id[cpu] = phys_proc_id[cpu] & ((1<<bits)-1);
                 phys_proc_id[cpu] >>= bits;
                 printk(KERN_INFO "CPU %d(%d) -> Core %d\n",
-                       cpu, c->x86_num_cores, cpu_core_id[cpu]);
+                       cpu, c->x86_max_cores, cpu_core_id[cpu]);
         }
 #endif
 }
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index c145fb30002e..31e344b26bae 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -231,10 +231,10 @@ static void __init early_cpu_detect(void)
                 cpuid(0x00000001, &tfms, &misc, &junk, &cap0);
                 c->x86 = (tfms >> 8) & 15;
                 c->x86_model = (tfms >> 4) & 15;
-                if (c->x86 == 0xf) {
+                if (c->x86 == 0xf)
                         c->x86 += (tfms >> 20) & 0xff;
+                if (c->x86 >= 0x6)
                         c->x86_model += ((tfms >> 16) & 0xF) << 4;
-                }
                 c->x86_mask = tfms & 15;
                 if (cap0 & (1<<19))
                         c->x86_cache_alignment = ((misc >> 8) & 0xff) * 8;
@@ -333,7 +333,7 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
         c->x86_model = c->x86_mask = 0; /* So far unknown... */
         c->x86_vendor_id[0] = '\0'; /* Unset */
         c->x86_model_id[0] = '\0';  /* Unset */
-        c->x86_num_cores = 1;
+        c->x86_max_cores = 1;
         memset(&c->x86_capability, 0, sizeof c->x86_capability);
 
         if (!have_cpuid_p()) {
@@ -443,52 +443,44 @@ void __devinit identify_cpu(struct cpuinfo_x86 *c)
 void __devinit detect_ht(struct cpuinfo_x86 *c)
 {
         u32     eax, ebx, ecx, edx;
-        int     index_msb, tmp;
+        int     index_msb, core_bits;
         int     cpu = smp_processor_id();
 
+        cpuid(1, &eax, &ebx, &ecx, &edx);
+
+        c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0);
+
         if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
                 return;
 
-        cpuid(1, &eax, &ebx, &ecx, &edx);
         smp_num_siblings = (ebx & 0xff0000) >> 16;
 
         if (smp_num_siblings == 1) {
                 printk(KERN_INFO  "CPU: Hyper-Threading is disabled\n");
         } else if (smp_num_siblings > 1 ) {
-                index_msb = 31;
 
                 if (smp_num_siblings > NR_CPUS) {
                         printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
                         smp_num_siblings = 1;
                         return;
                 }
-                tmp = smp_num_siblings;
-                while ((tmp & 0x80000000 ) == 0) {
-                        tmp <<=1 ;
-                        index_msb--;
-                }
-                if (smp_num_siblings & (smp_num_siblings - 1))
-                        index_msb++;
+
+                index_msb = get_count_order(smp_num_siblings);
                 phys_proc_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
 
                 printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
                        phys_proc_id[cpu]);
 
-                smp_num_siblings = smp_num_siblings / c->x86_num_cores;
+                smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
-                tmp = smp_num_siblings;
-                index_msb = 31;
-                while ((tmp & 0x80000000) == 0) {
-                        tmp <<=1 ;
-                        index_msb--;
-                }
+                index_msb = get_count_order(smp_num_siblings) ;
 
-                if (smp_num_siblings & (smp_num_siblings - 1))
-                        index_msb++;
+                core_bits = get_count_order(c->x86_max_cores);
 
-                cpu_core_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb);
+                cpu_core_id[cpu] = phys_pkg_id((ebx >> 24) & 0xFF, index_msb) &
+                                               ((1 << core_bits) - 1);
 
-                if (c->x86_num_cores > 1)
+                if (c->x86_max_cores > 1)
                         printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
                                cpu_core_id[cpu]);
         }
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c
index 43601de0f633..5e2da704f0fa 100644
--- a/arch/i386/kernel/cpu/intel.c
+++ b/arch/i386/kernel/cpu/intel.c
@@ -6,6 +6,7 @@
 #include <linux/bitops.h>
 #include <linux/smp.h>
 #include <linux/thread_info.h>
+#include <linux/module.h>
 
 #include <asm/processor.h>
 #include <asm/msr.h>
@@ -157,7 +158,7 @@ static void __devinit init_intel(struct cpuinfo_x86 *c)
         if ( p )
                 strcpy(c->x86_model_id, p);
         
-        c->x86_num_cores = num_cpu_cores(c);
+        c->x86_max_cores = num_cpu_cores(c);
 
         detect_ht(c);
 
@@ -264,5 +265,52 @@ __init int intel_cpu_init(void)
         return 0;
 }
 
+#ifndef CONFIG_X86_CMPXCHG
+unsigned long cmpxchg_386_u8(volatile void *ptr, u8 old, u8 new)
+{
+        u8 prev;
+        unsigned long flags;
+
+        /* Poor man's cmpxchg for 386. Unsuitable for SMP */
+        local_irq_save(flags);
+        prev = *(u8 *)ptr;
+        if (prev == old)
+                *(u8 *)ptr = new;
+        local_irq_restore(flags);
+        return prev;
+}
+EXPORT_SYMBOL(cmpxchg_386_u8);
+
+unsigned long cmpxchg_386_u16(volatile void *ptr, u16 old, u16 new)
+{
+        u16 prev;
+        unsigned long flags;
+
+        /* Poor man's cmpxchg for 386. Unsuitable for SMP */
+        local_irq_save(flags);
+        prev = *(u16 *)ptr;
+        if (prev == old)
+                *(u16 *)ptr = new;
+        local_irq_restore(flags);
+        return prev;
+}
+EXPORT_SYMBOL(cmpxchg_386_u16);
+
+unsigned long cmpxchg_386_u32(volatile void *ptr, u32 old, u32 new)
+{
+        u32 prev;
+        unsigned long flags;
+
+        /* Poor man's cmpxchg for 386. Unsuitable for SMP */
+        local_irq_save(flags);
+        prev = *(u32 *)ptr;
+        if (prev == old)
+                *(u32 *)ptr = new;
+        local_irq_restore(flags);
+        return prev;
+}
+EXPORT_SYMBOL(cmpxchg_386_u32);
+#endif
+
 // arch_initcall(intel_cpu_init);
 
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index 4dc42a189ae5..fbfd374aa336 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -293,29 +293,45 @@ static struct _cpuid4_info *cpuid4_info[NR_CPUS];
 #ifdef CONFIG_SMP
 static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
 {
-        struct _cpuid4_info     *this_leaf;
+        struct _cpuid4_info     *this_leaf, *sibling_leaf;
         unsigned long num_threads_sharing;
-#ifdef CONFIG_X86_HT
-        struct cpuinfo_x86 *c = cpu_data + cpu;
-#endif
+        int index_msb, i;
+        struct cpuinfo_x86 *c = cpu_data;
 
         this_leaf = CPUID4_INFO_IDX(cpu, index);
         num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing;
 
         if (num_threads_sharing == 1)
                 cpu_set(cpu, this_leaf->shared_cpu_map);
-#ifdef CONFIG_X86_HT
-        else if (num_threads_sharing == smp_num_siblings)
-                this_leaf->shared_cpu_map = cpu_sibling_map[cpu];
-        else if (num_threads_sharing == (c->x86_num_cores * smp_num_siblings))
-                this_leaf->shared_cpu_map = cpu_core_map[cpu];
-        else
-                printk(KERN_DEBUG "Number of CPUs sharing cache didn't match "
-                                "any known set of CPUs\n");
-#endif
+        else {
+                index_msb = get_count_order(num_threads_sharing);
+
+                for_each_online_cpu(i) {
+                        if (c[i].apicid >> index_msb ==
+                            c[cpu].apicid >> index_msb) {
+                                cpu_set(i, this_leaf->shared_cpu_map);
+                                if (i != cpu && cpuid4_info[i])  {
+                                        sibling_leaf = CPUID4_INFO_IDX(i, index);
+                                        cpu_set(cpu, sibling_leaf->shared_cpu_map);
+                                }
+                        }
+                }
+        }
+}
+static void __devinit cache_remove_shared_cpu_map(unsigned int cpu, int index)
+{
+        struct _cpuid4_info     *this_leaf, *sibling_leaf;
+        int sibling;
+
+        this_leaf = CPUID4_INFO_IDX(cpu, index);
+        for_each_cpu_mask(sibling, this_leaf->shared_cpu_map) {
+                sibling_leaf = CPUID4_INFO_IDX(sibling, index); 
+                cpu_clear(cpu, sibling_leaf->shared_cpu_map);
+        }
 }
 #else
 static void __init cache_shared_cpu_map_setup(unsigned int cpu, int index) {}
+static void __init cache_remove_shared_cpu_map(unsigned int cpu, int index) {}
 #endif
 
 static void free_cache_attributes(unsigned int cpu)
@@ -574,8 +590,10 @@ static void __cpuexit cache_remove_dev(struct sys_device * sys_dev)
         unsigned int cpu = sys_dev->id;
         unsigned long i;
 
-        for (i = 0; i < num_cache_leaves; i++)
+        for (i = 0; i < num_cache_leaves; i++) {
+                cache_remove_shared_cpu_map(cpu, i);
                 kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
+        }
         kobject_unregister(cache_kobject[cpu]);
         cpuid4_cache_sysfs_exit(cpu);
         return;
diff --git a/arch/i386/kernel/cpu/mtrr/main.c b/arch/i386/kernel/cpu/mtrr/main.c
index dd4ebd6af7e4..1e9db198c440 100644
--- a/arch/i386/kernel/cpu/mtrr/main.c
+++ b/arch/i386/kernel/cpu/mtrr/main.c
@@ -626,6 +626,14 @@ void __init mtrr_bp_init(void)
                 if (cpuid_eax(0x80000000) >= 0x80000008) {
                         u32 phys_addr;
                         phys_addr = cpuid_eax(0x80000008) & 0xff;
+                        /* CPUID workaround for Intel 0F33/0F34 CPU */
+                        if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
+                            boot_cpu_data.x86 == 0xF &&
+                            boot_cpu_data.x86_model == 0x3 &&
+                            (boot_cpu_data.x86_mask == 0x3 ||
+                             boot_cpu_data.x86_mask == 0x4))
+                                phys_addr = 36;
+
                         size_or_mask = ~((1 << (phys_addr - PAGE_SHIFT)) - 1);
                         size_and_mask = ~size_or_mask & 0xfff00000;
                 } else if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR &&
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 41b871ecf4b3..e7921315ae9d 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -94,12 +94,11 @@ static int show_cpuinfo(struct seq_file *m, void *v)
         if (c->x86_cache_size >= 0)
                 seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
 #ifdef CONFIG_X86_HT
-        if (c->x86_num_cores * smp_num_siblings > 1) {
+        if (c->x86_max_cores * smp_num_siblings > 1) {
                 seq_printf(m, "physical id\t: %d\n", phys_proc_id[n]);
-                seq_printf(m, "siblings\t: %d\n",
-                                c->x86_num_cores * smp_num_siblings);
+                seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[n]));
                 seq_printf(m, "core id\t\t: %d\n", cpu_core_id[n]);
-                seq_printf(m, "cpu cores\t: %d\n", c->x86_num_cores);
+                seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
         }
 #endif
         
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index af809ccf5fbe..0248e084017c 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -21,6 +21,7 @@
 #include <asm/hardirq.h>
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
+#include <asm/apic.h>
 #include <mach_ipi.h>
 
 
@@ -147,6 +148,7 @@ static int crash_nmi_callback(struct pt_regs *regs, int cpu)
                 regs = &fixed_regs;
         }
         crash_save_this_cpu(regs, cpu);
+        disable_local_APIC();
         atomic_dec(&waiting_for_crash_ipi);
         /* Assume hlt works */
         halt();
@@ -186,6 +188,7 @@ static void nmi_shootdown_cpus(void)
         }
 
         /* Leave the nmi callback set */
+        disable_local_APIC();
 }
 #else
 static void nmi_shootdown_cpus(void)
@@ -210,5 +213,9 @@ void machine_crash_shutdown(struct pt_regs *regs)
         /* Make a note of crashing cpu. Will be used in NMI callback.*/
         crashing_cpu = smp_processor_id();
         nmi_shootdown_cpus();
+        lapic_shutdown();
+#if defined(CONFIG_X86_IO_APIC)
+        disable_IO_APIC();
+#endif
         crash_save_self(regs);
 }
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S
index 9e24f7b207ee..e50b93155249 100644
--- a/arch/i386/kernel/entry.S
+++ b/arch/i386/kernel/entry.S
@@ -560,11 +560,10 @@ nmi_stack_fixup:
 nmi_debug_stack_check:
         cmpw $__KERNEL_CS,16(%esp)
         jne nmi_stack_correct
-        cmpl $debug - 1,(%esp)
-        jle nmi_stack_correct
+        cmpl $debug,(%esp)
+        jb nmi_stack_correct
         cmpl $debug_esp_fix_insn,(%esp)
-        jle nmi_debug_stack_fixup
-nmi_debug_stack_fixup:
+        ja nmi_stack_correct
         FIX_STACK(24,nmi_stack_correct, 1)
         jmp nmi_stack_correct
 
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index bc5a9d97466b..d16520da4550 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -72,9 +72,11 @@ int phys_proc_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
 /* Core ID of each logical CPU */
 int cpu_core_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID};
 
+/* representing HT siblings of each logical CPU */
 cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_sibling_map);
 
+/* representing HT and core siblings of each logical CPU */
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_core_map);
 
@@ -442,35 +444,60 @@ static void __devinit smp_callin(void)
 
 static int cpucount;
 
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
 static inline void
 set_cpu_sibling_map(int cpu)
 {
         int i;
+        struct cpuinfo_x86 *c = cpu_data;
+
+        cpu_set(cpu, cpu_sibling_setup_map);
 
         if (smp_num_siblings > 1) {
-                for (i = 0; i < NR_CPUS; i++) {
-                        if (!cpu_isset(i, cpu_callout_map))
-                                continue;
-                        if (cpu_core_id[cpu] == cpu_core_id[i]) {
+                for_each_cpu_mask(i, cpu_sibling_setup_map) {
+                        if (phys_proc_id[cpu] == phys_proc_id[i] &&
+                            cpu_core_id[cpu] == cpu_core_id[i]) {
                                 cpu_set(i, cpu_sibling_map[cpu]);
                                 cpu_set(cpu, cpu_sibling_map[i]);
+                                cpu_set(i, cpu_core_map[cpu]);
+                                cpu_set(cpu, cpu_core_map[i]);
                         }
                 }
         } else {
                 cpu_set(cpu, cpu_sibling_map[cpu]);
         }
 
-        if (current_cpu_data.x86_num_cores > 1) {
-                for (i = 0; i < NR_CPUS; i++) {
-                        if (!cpu_isset(i, cpu_callout_map))
-                                continue;
-                        if (phys_proc_id[cpu] == phys_proc_id[i]) {
-                                cpu_set(i, cpu_core_map[cpu]);
-                                cpu_set(cpu, cpu_core_map[i]);
-                        }
-                }
-        } else {
+        if (current_cpu_data.x86_max_cores == 1) {
                 cpu_core_map[cpu] = cpu_sibling_map[cpu];
+                c[cpu].booted_cores = 1;
+                return;
+        }
+
+        for_each_cpu_mask(i, cpu_sibling_setup_map) {
+                if (phys_proc_id[cpu] == phys_proc_id[i]) {
+                        cpu_set(i, cpu_core_map[cpu]);
+                        cpu_set(cpu, cpu_core_map[i]);
+                        /*
+                         *  Does this new cpu bringup a new core?
+                         */
+                        if (cpus_weight(cpu_sibling_map[cpu]) == 1) {
+                                /*
+                                 * for each core in package, increment
+                                 * the booted_cores for this new cpu
+                                 */
+                                if (first_cpu(cpu_sibling_map[i]) == i)
+                                        c[cpu].booted_cores++;
+                                /*
+                                 * increment the core count for all
+                                 * the other cpus in this package
+                                 */
+                                if (i != cpu)
+                                        c[i].booted_cores++;
+                        } else if (i != cpu && !c[cpu].booted_cores)
+                                c[cpu].booted_cores = c[i].booted_cores;
+                }
         }
 }
 
@@ -1095,11 +1122,8 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 
         current_thread_info()->cpu = 0;
         smp_tune_scheduling();
-        cpus_clear(cpu_sibling_map[0]);
-        cpu_set(0, cpu_sibling_map[0]);
 
-        cpus_clear(cpu_core_map[0]);
-        cpu_set(0, cpu_core_map[0]);
+        set_cpu_sibling_map(0);
 
         /*
          * If we couldn't find an SMP configuration at boot time,
@@ -1278,15 +1302,24 @@ static void
 remove_siblinginfo(int cpu)
 {
         int sibling;
+        struct cpuinfo_x86 *c = cpu_data;
 
+        for_each_cpu_mask(sibling, cpu_core_map[cpu]) {
+                cpu_clear(cpu, cpu_core_map[sibling]);
+                /*
+                 * last thread sibling in this cpu core going down
+                 */
+                if (cpus_weight(cpu_sibling_map[cpu]) == 1)
+                        c[sibling].booted_cores--;
+        }
+                        
         for_each_cpu_mask(sibling, cpu_sibling_map[cpu])
                 cpu_clear(cpu, cpu_sibling_map[sibling]);
-        for_each_cpu_mask(sibling, cpu_core_map[cpu])
-                cpu_clear(cpu, cpu_core_map[sibling]);
         cpus_clear(cpu_sibling_map[cpu]);
         cpus_clear(cpu_core_map[cpu]);
         phys_proc_id[cpu] = BAD_APICID;
         cpu_core_id[cpu] = BAD_APICID;
+        cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
 int __cpu_disable(void)
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c
index 8de658db8146..52b3ed5d2cb5 100644
--- a/arch/i386/kernel/srat.c
+++ b/arch/i386/kernel/srat.c
@@ -137,8 +137,8 @@ static void __init parse_memory_affinity_structure (char *sratp)
                  "enabled and removable" : "enabled" ) );
 }
 
-#if MAX_NR_ZONES != 3
-#error "MAX_NR_ZONES != 3, chunk_to_zone requires review"
+#if MAX_NR_ZONES != 4
+#error "MAX_NR_ZONES != 4, chunk_to_zone requires review"
 #endif
 /* Take a chunk of pages from page frame cstart to cend and count the number
  * of pages in each zone, returned via zones[].
diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c
index e42e46d35159..b9b6bd56b9ba 100644
--- a/arch/i386/kernel/timers/timer_pit.c
+++ b/arch/i386/kernel/timers/timer_pit.c
@@ -25,8 +25,9 @@ static int __init init_pit(char* override)
 {
         /* check clock override */
         if (override[0] && strncmp(override,"pit",3))
-                printk(KERN_ERR "Warning: clock= override failed. Defaulting to PIT\n");
- 
+                printk(KERN_ERR "Warning: clock= override failed. Defaulting "
+                                "to PIT\n");
+        init_cpu_khz();
         count_p = LATCH;
         return 0;
 }
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 542d9298da5e..06e26f006238 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -28,6 +28,7 @@
 #include <linux/proc_fs.h>
 #include <linux/efi.h>
 #include <linux/memory_hotplug.h>
+#include <linux/initrd.h>
 
 #include <asm/processor.h>
 #include <asm/system.h>
@@ -267,7 +268,7 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
         pkmap_page_table = pte; 
 }
 
-void __devinit free_new_highpage(struct page *page)
+static void __devinit free_new_highpage(struct page *page)
 {
         set_page_count(page, 1);
         __free_page(page);
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 8796e12c56f3..b76ce1fe2e7f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -58,6 +58,10 @@ config IA64_UNCACHED_ALLOCATOR
         bool
         select GENERIC_ALLOCATOR
 
+config ZONE_DMA_IS_DMA32
+        bool
+        default y
+
 choice
         prompt "System type"
         default IA64_GENERIC
diff --git a/arch/m68k/fpsp040/skeleton.S b/arch/m68k/fpsp040/skeleton.S
index 9571a21d6ad4..a1629194e3fd 100644
--- a/arch/m68k/fpsp040/skeleton.S
+++ b/arch/m68k/fpsp040/skeleton.S
@@ -381,10 +381,8 @@ fpsp_done:
 .Lnotkern:
         SAVE_ALL_INT
         GET_CURRENT(%d0)
-        tstb    %curptr@(TASK_NEEDRESCHED)
-        jne     ret_from_exception      | deliver signals,
-                                        | reschedule etc..
-        RESTORE_ALL
+        | deliver signals, reschedule etc..
+        jra     ret_from_exception
 
 |
 |       mem_write --- write to user or supervisor address space
diff --git a/arch/m68k/ifpsp060/iskeleton.S b/arch/m68k/ifpsp060/iskeleton.S
index 4ba2c74da93d..b2dbdf5ee309 100644
--- a/arch/m68k/ifpsp060/iskeleton.S
+++ b/arch/m68k/ifpsp060/iskeleton.S
@@ -75,10 +75,8 @@ _060_isp_done:
 .Lnotkern:
         SAVE_ALL_INT
         GET_CURRENT(%d0)
-        tstb    %curptr@(TASK_NEEDRESCHED)
-        jne     ret_from_exception      | deliver signals,
-                                        | reschedule etc..
-        RESTORE_ALL
+        | deliver signals, reschedule etc..
+        jra     ret_from_exception
 
 |
 | _060_real_chk():
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c
index cee3317b8665..c787c5ba9513 100644
--- a/arch/m68k/kernel/asm-offsets.c
+++ b/arch/m68k/kernel/asm-offsets.c
@@ -25,12 +25,8 @@ int main(void)
         DEFINE(TASK_STATE, offsetof(struct task_struct, state));
         DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
         DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
-        DEFINE(TASK_WORK, offsetof(struct task_struct, thread.work));
-        DEFINE(TASK_NEEDRESCHED, offsetof(struct task_struct, thread.work.need_resched));
-        DEFINE(TASK_SYSCALL_TRACE, offsetof(struct task_struct, thread.work.syscall_trace));
-        DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, thread.work.sigpending));
-        DEFINE(TASK_NOTIFY_RESUME, offsetof(struct task_struct, thread.work.notify_resume));
         DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
+        DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
         DEFINE(TASK_MM, offsetof(struct task_struct, mm));
         DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
 
@@ -45,6 +41,10 @@ int main(void)
         DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
         DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
 
+        /* offsets into the thread_info struct */
+        DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
+        DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
+
         /* offsets into the pt_regs */
         DEFINE(PT_D0, offsetof(struct pt_regs, d0));
         DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 23ca60a45552..320fde05dc63 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -44,9 +44,7 @@
 
 #include <asm/asm-offsets.h>
 
-.globl system_call, buserr, trap
-.globl resume, ret_from_exception
-.globl ret_from_signal
+.globl system_call, buserr, trap, resume
 .globl inthandler, sys_call_table
 .globl sys_fork, sys_clone, sys_vfork
 .globl ret_from_interrupt, bad_interrupt
@@ -58,7 +56,7 @@ ENTRY(buserr)
         movel   %sp,%sp@-               | stack frame pointer argument
         bsrl    buserr_c
         addql   #4,%sp
-        jra     ret_from_exception
+        jra     .Lret_from_exception
 
 ENTRY(trap)
         SAVE_ALL_INT
@@ -66,7 +64,7 @@ ENTRY(trap)
         movel   %sp,%sp@-               | stack frame pointer argument
         bsrl    trap_c
         addql   #4,%sp
-        jra     ret_from_exception
+        jra     .Lret_from_exception
 
         | After a fork we jump here directly from resume,
         | so that %d1 contains the previous task
@@ -75,30 +73,31 @@ ENTRY(ret_from_fork)
         movel   %d1,%sp@-
         jsr     schedule_tail
         addql   #4,%sp
-        jra     ret_from_exception
+        jra     .Lret_from_exception
 
-badsys:
-        movel   #-ENOSYS,%sp@(PT_D0)
-        jra     ret_from_exception
-
-do_trace:
+do_trace_entry:
         movel   #-ENOSYS,%sp@(PT_D0)    | needed for strace
         subql   #4,%sp
         SAVE_SWITCH_STACK
         jbsr    syscall_trace
         RESTORE_SWITCH_STACK
         addql   #4,%sp
-        movel   %sp@(PT_ORIG_D0),%d1
-        movel   #-ENOSYS,%d0
-        cmpl    #NR_syscalls,%d1
-        jcc     1f
-        jbsr    @(sys_call_table,%d1:l:4)@(0)
-1:      movel   %d0,%sp@(PT_D0)         | save the return value
-        subql   #4,%sp                  | dummy return address
+        movel   %sp@(PT_ORIG_D0),%d0
+        cmpl    #NR_syscalls,%d0
+        jcs     syscall
+badsys:
+        movel   #-ENOSYS,%sp@(PT_D0)
+        jra     ret_from_syscall
+
+do_trace_exit:
+        subql   #4,%sp
         SAVE_SWITCH_STACK
         jbsr    syscall_trace
+        RESTORE_SWITCH_STACK
+        addql   #4,%sp
+        jra     .Lret_from_exception
 
-ret_from_signal:
+ENTRY(ret_from_signal)
         RESTORE_SWITCH_STACK
         addql   #4,%sp
 /* on 68040 complete pending writebacks if any */
@@ -111,7 +110,7 @@ ret_from_signal:
         addql   #4,%sp
 1:
 #endif
-        jra     ret_from_exception
+        jra     .Lret_from_exception
 
 ENTRY(system_call)
         SAVE_ALL_SYS
@@ -120,30 +119,34 @@ ENTRY(system_call)
         | save top of frame
         movel   %sp,%curptr@(TASK_THREAD+THREAD_ESP0)
 
-        tstb    %curptr@(TASK_SYSCALL_TRACE)
-        jne     do_trace
+        | syscall trace?
+        tstb    %curptr@(TASK_INFO+TINFO_FLAGS+2)
+        jmi     do_trace_entry
         cmpl    #NR_syscalls,%d0
         jcc     badsys
+syscall:
         jbsr    @(sys_call_table,%d0:l:4)@(0)
         movel   %d0,%sp@(PT_D0)         | save the return value
-
+ret_from_syscall:
         |oriw   #0x0700,%sr
-        movel   %curptr@(TASK_WORK),%d0
+        movew   %curptr@(TASK_INFO+TINFO_FLAGS+2),%d0
         jne     syscall_exit_work
 1:      RESTORE_ALL
 
 syscall_exit_work:
         btst    #5,%sp@(PT_SR)          | check if returning to kernel
         bnes    1b                      | if so, skip resched, signals
-        tstw    %d0
-        jeq     do_signal_return
-        tstb    %d0
-        jne     do_delayed_trace
-
+        lslw    #1,%d0
+        jcs     do_trace_exit
+        jmi     do_delayed_trace
+        lslw    #8,%d0
+        jmi     do_signal_return
         pea     resume_userspace
-        jmp     schedule
+        jra     schedule
+
 
-ret_from_exception:
+ENTRY(ret_from_exception)
+.Lret_from_exception:
         btst    #5,%sp@(PT_SR)          | check if returning to kernel
         bnes    1f                      | if so, skip resched, signals
         | only allow interrupts when we are really the last one on the
@@ -152,19 +155,18 @@ ret_from_exception:
         andw    #ALLOWINT,%sr
 
 resume_userspace:
-        movel   %curptr@(TASK_WORK),%d0
-        lsrl    #8,%d0
+        moveb   %curptr@(TASK_INFO+TINFO_FLAGS+3),%d0
         jne     exit_work
 1:      RESTORE_ALL
 
 exit_work:
         | save top of frame
         movel   %sp,%curptr@(TASK_THREAD+THREAD_ESP0)
-        tstb    %d0
-        jeq     do_signal_return
-
+        lslb    #1,%d0
+        jmi     do_signal_return
         pea     resume_userspace
-        jmp     schedule
+        jra     schedule
+
 
 do_signal_return:
         |andw   #ALLOWINT,%sr
@@ -254,7 +256,7 @@ ret_from_interrupt:
 
         /* check if we need to do software interrupts */
         tstl    irq_stat+CPUSTAT_SOFTIRQ_PENDING
-        jeq     ret_from_exception
+        jeq     .Lret_from_exception
         pea     ret_from_exception
         jra     do_softirq
 
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 7e54422685cf..540638ca81f9 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -109,7 +109,7 @@ static inline void singlestep_disable(struct task_struct *child)
 {
         unsigned long tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16);
         put_reg(child, PT_SR, tmp);
-        child->thread.work.delayed_trace = 0;
+        clear_tsk_thread_flag(child, TIF_DELAYED_TRACE);
 }
 
 /*
@@ -118,7 +118,7 @@ static inline void singlestep_disable(struct task_struct *child)
 void ptrace_disable(struct task_struct *child)
 {
         singlestep_disable(child);
-        child->thread.work.syscall_trace = 0;
+        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 }
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -198,9 +198,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         goto out_eio;
 
                 if (request == PTRACE_SYSCALL)
-                        child->thread.work.syscall_trace = ~0;
+                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                 else
-                        child->thread.work.syscall_trace = 0;
+                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                 child->exit_code = data;
                 singlestep_disable(child);
                 wake_up_process(child);
@@ -223,10 +223,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 if (!valid_signal(data))
                         goto out_eio;
 
-                child->thread.work.syscall_trace = 0;
+                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
                 tmp = get_reg(child, PT_SR) | (TRACE_BITS << 16);
                 put_reg(child, PT_SR, tmp);
-                child->thread.work.delayed_trace = 1;
+                set_tsk_thread_flag(child, TIF_DELAYED_TRACE);
 
                 child->exit_code = data;
                 /* give it a chance to run. */
@@ -288,9 +288,6 @@ out_eio:
 
 asmlinkage void syscall_trace(void)
 {
-        if (!current->thread.work.delayed_trace &&
-            !current->thread.work.syscall_trace)
-                return;
         ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
                                  ? 0x80 : 0));
         /*
diff --git a/arch/mips/au1000/common/power.c b/arch/mips/au1000/common/power.c
index f85093b8d54d..f4926315fb68 100644
--- a/arch/mips/au1000/common/power.c
+++ b/arch/mips/au1000/common/power.c
@@ -32,6 +32,7 @@
 #include <linux/config.h>
 #include <linux/init.h>
 #include <linux/pm.h>
+#include <linux/pm_legacy.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/jiffies.h>
diff --git a/arch/mips/au1000/common/usbdev.c b/arch/mips/au1000/common/usbdev.c
index 0b21bed7ee55..2cab7629702c 100644
--- a/arch/mips/au1000/common/usbdev.c
+++ b/arch/mips/au1000/common/usbdev.c
@@ -348,7 +348,7 @@ endpoint_stall(endpoint_t * ep)
 {
         u32 cs;
 
-        warn(__FUNCTION__);
+        warn("%s", __FUNCTION__);
 
         cs = au_readl(ep->reg->ctrl_stat) | USBDEV_CS_STALL;
         au_writel(cs, ep->reg->ctrl_stat);
@@ -360,7 +360,7 @@ endpoint_unstall(endpoint_t * ep)
 {
         u32 cs;
 
-        warn(__FUNCTION__);
+        warn("%s", __FUNCTION__);
 
         cs = au_readl(ep->reg->ctrl_stat) & ~USBDEV_CS_STALL;
         au_writel(cs, ep->reg->ctrl_stat);
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c523029674e6..94df74bcc0ee 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -261,7 +261,7 @@ config PPC_ISERIES
 
 config EMBEDDED6xx
         bool "Embedded 6xx/7xx/7xxx-based board"
-        depends on PPC32
+        depends on PPC32 && BROKEN
 
 config APUS
         bool "Amiga-APUS"
@@ -305,7 +305,7 @@ config PPC_PMAC64
 
 config PPC_PREP
         bool "  PowerPC Reference Platform (PReP) based machines"
-        depends on PPC_MULTIPLATFORM && PPC32
+        depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
         select PPC_I8259
         select PPC_INDIRECT_PCI
         default y
@@ -932,6 +932,7 @@ source "arch/powerpc/oprofile/Kconfig"
 
 config KPROBES
         bool "Kprobes (EXPERIMENTAL)"
+        depends on PPC64
         help
           Kprobes allows you to trap at almost any kernel address and
           execute a callback function.  register_kprobe() establishes
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 5bc11bd36c1f..d41ad2e675db 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -187,7 +187,7 @@ archprepare: checkbin
 
 # Temporary hack until we have migrated to asm-powerpc
 include/asm: arch/$(ARCH)/include/asm
-arch/$(ARCH)/include/asm:
+arch/$(ARCH)/include/asm: FORCE
         $(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
         $(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm
 
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 9f09dff9e11a..913962c1dae0 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -1,18 +1,33 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.14-rc4
-# Thu Oct 20 08:32:17 2005
+# Linux kernel version: 2.6.15-rc1
+# Mon Nov 14 15:27:00 2005
 #
+CONFIG_PPC64=y
 CONFIG_64BIT=y
+CONFIG_PPC_MERGE=y
 CONFIG_MMU=y
+CONFIG_GENERIC_HARDIRQS=y
 CONFIG_RWSEM_XCHGADD_ALGORITHM=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_ISA_DMA=y
+CONFIG_PPC=y
 CONFIG_EARLY_PRINTK=y
 CONFIG_COMPAT=y
+CONFIG_SYSVIPC_COMPAT=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
-CONFIG_FORCE_MAX_ZONEORDER=13
+
+#
+# Processor support
+#
+# CONFIG_POWER4_ONLY is not set
+CONFIG_POWER3=y
+CONFIG_POWER4=y
+CONFIG_PPC_FPU=y
+CONFIG_ALTIVEC=y
+CONFIG_PPC_STD_MMU=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=128
 
 #
 # Code maturity level options
@@ -68,75 +83,103 @@ CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
 CONFIG_KMOD=y
 CONFIG_STOP_MACHINE=y
-CONFIG_SYSVIPC_COMPAT=y
+
+#
+# Block layer
+#
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
 
 #
 # Platform support
 #
-# CONFIG_PPC_ISERIES is not set
 CONFIG_PPC_MULTIPLATFORM=y
+# CONFIG_PPC_ISERIES is not set
+# CONFIG_EMBEDDED6xx is not set
+# CONFIG_APUS is not set
 CONFIG_PPC_PSERIES=y
-# CONFIG_PPC_BPA is not set
 # CONFIG_PPC_PMAC is not set
 # CONFIG_PPC_MAPLE is not set
-CONFIG_PPC=y
-CONFIG_PPC64=y
+# CONFIG_PPC_CELL is not set
 CONFIG_PPC_OF=y
 CONFIG_XICS=y
+# CONFIG_U3_DART is not set
 CONFIG_MPIC=y
-CONFIG_ALTIVEC=y
-CONFIG_PPC_SPLPAR=y
-CONFIG_KEXEC=y
+CONFIG_PPC_RTAS=y
+CONFIG_RTAS_ERROR_LOGGING=y
+CONFIG_RTAS_PROC=y
+CONFIG_RTAS_FLASH=m
+# CONFIG_MMIO_NVRAM is not set
 CONFIG_IBMVIO=y
-# CONFIG_U3_DART is not set
-# CONFIG_BOOTX_TEXT is not set
-# CONFIG_POWER4_ONLY is not set
+# CONFIG_PPC_MPC106 is not set
+# CONFIG_GENERIC_TBSYNC is not set
+# CONFIG_CPU_FREQ is not set
+# CONFIG_WANT_EARLY_SERIAL is not set
+
+#
+# Kernel options
+#
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_PREEMPT_BKL is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+CONFIG_FORCE_MAX_ZONEORDER=13
 CONFIG_IOMMU_VMERGE=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=128
+CONFIG_HOTPLUG_CPU=y
+CONFIG_KEXEC=y
+# CONFIG_IRQ_ALL_CPUS is not set
+CONFIG_PPC_SPLPAR=y
+CONFIG_EEH=y
+CONFIG_SCANLOG=m
+CONFIG_LPARCFG=y
+CONFIG_NUMA=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
-CONFIG_ARCH_FLATMEM_ENABLE=y
-CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
 CONFIG_SELECT_MEMORY_MODEL=y
 # CONFIG_FLATMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM_MANUAL=y
-# CONFIG_SPARSEMEM_MANUAL is not set
-CONFIG_DISCONTIGMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM=y
 CONFIG_NEED_MULTIPLE_NODES=y
+CONFIG_HAVE_MEMORY_PRESENT=y
 # CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPARSEMEM_EXTREME=y
+# CONFIG_MEMORY_HOTPLUG is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4096
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
 CONFIG_NODES_SPAN_OTHER_NODES=y
-CONFIG_NUMA=y
+# CONFIG_PPC_64K_PAGES is not set
 CONFIG_SCHED_SMT=y
-CONFIG_PREEMPT_NONE=y
-# CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
-# CONFIG_PREEMPT_BKL is not set
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
-# CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
-CONFIG_EEH=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_PPC_RTAS=y
-CONFIG_RTAS_PROC=y
-CONFIG_RTAS_FLASH=m
-CONFIG_SCANLOG=m
-CONFIG_LPARCFG=y
-CONFIG_SECCOMP=y
-CONFIG_BINFMT_ELF=y
-# CONFIG_BINFMT_MISC is not set
-CONFIG_HOTPLUG_CPU=y
 CONFIG_PROC_DEVICETREE=y
 # CONFIG_CMDLINE_BOOL is not set
+# CONFIG_PM is not set
+CONFIG_SECCOMP=y
 CONFIG_ISA_DMA_API=y
 
 #
-# Bus Options
+# Bus options
 #
+CONFIG_GENERIC_ISA_DMA=y
+CONFIG_PPC_I8259=y
+# CONFIG_PPC_INDIRECT_PCI is not set
 CONFIG_PCI=y
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_LEGACY_PROC=y
@@ -156,6 +199,7 @@ CONFIG_HOTPLUG_PCI=m
 # CONFIG_HOTPLUG_PCI_SHPC is not set
 CONFIG_HOTPLUG_PCI_RPA=m
 CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
+CONFIG_KERNEL_START=0xc000000000000000
 
 #
 # Networking
@@ -197,6 +241,10 @@ CONFIG_TCP_CONG_BIC=y
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_DEBUG is not set
+
+#
+# Core Netfilter Configuration
+#
 CONFIG_NETFILTER_NETLINK=y
 CONFIG_NETFILTER_NETLINK_QUEUE=m
 CONFIG_NETFILTER_NETLINK_LOG=m
@@ -299,6 +347,10 @@ CONFIG_LLC=y
 # CONFIG_NET_DIVERT is not set
 # CONFIG_ECONET is not set
 # CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
 # CONFIG_NET_SCHED is not set
 CONFIG_NET_CLS_ROUTE=y
 
@@ -368,14 +420,6 @@ CONFIG_BLK_DEV_RAM_COUNT=16
 CONFIG_BLK_DEV_RAM_SIZE=65536
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_CDROM_PKTCDVD is not set
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_AS=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=y
 # CONFIG_ATA_OVER_ETH is not set
 
 #
@@ -473,6 +517,7 @@ CONFIG_SCSI_ISCSI_ATTRS=m
 #
 # SCSI low-level drivers
 #
+# CONFIG_ISCSI_TCP is not set
 # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
 # CONFIG_SCSI_3W_9XXX is not set
 # CONFIG_SCSI_ACARD is not set
@@ -559,6 +604,7 @@ CONFIG_DM_MULTIPATH_EMC=m
 #
 # Macintosh device drivers
 #
+# CONFIG_WINDFARM is not set
 
 #
 # Network device support
@@ -645,7 +691,6 @@ CONFIG_IXGB=m
 # CONFIG_IXGB_NAPI is not set
 CONFIG_S2IO=m
 # CONFIG_S2IO_NAPI is not set
-# CONFIG_2BUFF_MODE is not set
 
 #
 # Token Ring devices
@@ -674,6 +719,7 @@ CONFIG_PPP_ASYNC=m
 CONFIG_PPP_SYNC_TTY=m
 CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+# CONFIG_PPP_MPPE is not set
 CONFIG_PPPOE=m
 # CONFIG_SLIP is not set
 # CONFIG_NET_FC is not set
@@ -784,6 +830,8 @@ CONFIG_HVCS=m
 #
 # CONFIG_WATCHDOG is not set
 # CONFIG_RTC is not set
+CONFIG_GEN_RTC=y
+# CONFIG_GEN_RTC_X is not set
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
@@ -801,6 +849,7 @@ CONFIG_MAX_RAW_DEVS=1024
 # TPM devices
 #
 # CONFIG_TCG_TPM is not set
+# CONFIG_TELCLOCK is not set
 
 #
 # I2C support
@@ -852,6 +901,7 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_SENSORS_PCF8591 is not set
 # CONFIG_SENSORS_RTC8564 is not set
 # CONFIG_SENSORS_MAX6875 is not set
+# CONFIG_RTC_X1205_I2C is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set
 # CONFIG_I2C_DEBUG_BUS is not set
@@ -893,7 +943,6 @@ CONFIG_FB=y
 CONFIG_FB_CFB_FILLRECT=y
 CONFIG_FB_CFB_COPYAREA=y
 CONFIG_FB_CFB_IMAGEBLIT=y
-CONFIG_FB_SOFT_CURSOR=y
 CONFIG_FB_MACMODES=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
@@ -905,6 +954,7 @@ CONFIG_FB_OF=y
 # CONFIG_FB_ASILIANT is not set
 # CONFIG_FB_IMSTT is not set
 # CONFIG_FB_VGA16 is not set
+# CONFIG_FB_S1D13XXX is not set
 # CONFIG_FB_NVIDIA is not set
 # CONFIG_FB_RIVA is not set
 CONFIG_FB_MATROX=y
@@ -927,7 +977,6 @@ CONFIG_FB_RADEON_I2C=y
 # CONFIG_FB_VOODOO1 is not set
 # CONFIG_FB_CYBLA is not set
 # CONFIG_FB_TRIDENT is not set
-# CONFIG_FB_S1D13XXX is not set
 # CONFIG_FB_VIRTUAL is not set
 
 #
@@ -936,6 +985,7 @@ CONFIG_FB_RADEON_I2C=y
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_DUMMY_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
 # CONFIG_FONTS is not set
 CONFIG_FONT_8x8=y
 CONFIG_FONT_8x16=y
@@ -990,12 +1040,15 @@ CONFIG_USB_OHCI_LITTLE_ENDIAN=y
 #
 # USB Device Class drivers
 #
-# CONFIG_USB_BLUETOOTH_TTY is not set
 # CONFIG_USB_ACM is not set
 # CONFIG_USB_PRINTER is not set
 
 #
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
 #
 CONFIG_USB_STORAGE=y
 # CONFIG_USB_STORAGE_DEBUG is not set
@@ -1106,6 +1159,7 @@ CONFIG_INFINIBAND_MTHCA=m
 # CONFIG_INFINIBAND_MTHCA_DEBUG is not set
 CONFIG_INFINIBAND_IPOIB=m
 # CONFIG_INFINIBAND_IPOIB_DEBUG is not set
+# CONFIG_INFINIBAND_SRP is not set
 
 #
 # SN Devices
@@ -1288,10 +1342,25 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_NLS_UTF8 is not set
 
 #
-# Profiling support
+# Library routines
+#
+CONFIG_CRC_CCITT=m
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+CONFIG_LIBCRC32C=m
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=m
+CONFIG_TEXTSEARCH=y
+CONFIG_TEXTSEARCH_KMP=m
+CONFIG_TEXTSEARCH_BM=m
+CONFIG_TEXTSEARCH_FSM=m
+
+#
+# Instrumentation Support
 #
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
+# CONFIG_KPROBES is not set
 
 #
 # Kernel hacking
@@ -1308,14 +1377,15 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
 CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_VM is not set
+# CONFIG_RCU_TORTURE_TEST is not set
 CONFIG_DEBUG_STACKOVERFLOW=y
-# CONFIG_KPROBES is not set
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUGGER=y
 CONFIG_XMON=y
 CONFIG_XMON_DEFAULT=y
-# CONFIG_PPCDBG is not set
 CONFIG_IRQSTACKS=y
+# CONFIG_BOOTX_TEXT is not set
 
 #
 # Security options
@@ -1355,17 +1425,3 @@ CONFIG_CRYPTO_TEST=m
 #
 # Hardware crypto devices
 #
-
-#
-# Library routines
-#
-CONFIG_CRC_CCITT=m
-# CONFIG_CRC16 is not set
-CONFIG_CRC32=y
-CONFIG_LIBCRC32C=m
-CONFIG_ZLIB_INFLATE=y
-CONFIG_ZLIB_DEFLATE=m
-CONFIG_TEXTSEARCH=y
-CONFIG_TEXTSEARCH_KMP=m
-CONFIG_TEXTSEARCH_BM=m
-CONFIG_TEXTSEARCH_FSM=m
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 9a74b7ab03a4..4970e3721a84 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_PPC_OF)		+= of_device.o
 procfs-$(CONFIG_PPC64)          := proc_ppc64.o
 obj-$(CONFIG_PROC_FS)           += $(procfs-y)
 rtaspci-$(CONFIG_PPC64)         := rtas_pci.o
-obj-$(CONFIG_PPC_RTAS)          += rtas.o $(rtaspci-y)
+obj-$(CONFIG_PPC_RTAS)          += rtas.o rtas-rtc.o $(rtaspci-y)
 obj-$(CONFIG_RTAS_FLASH)        += rtas_flash.o
 obj-$(CONFIG_RTAS_PROC)         += rtas-proc.o
 obj-$(CONFIG_LPARCFG)           += lparcfg.o
@@ -49,12 +49,23 @@ extra-y				+= vmlinux.lds
 obj-y                           += process.o init_task.o time.o \
                                    prom.o traps.o setup-common.o
 obj-$(CONFIG_PPC32)             += entry_32.o setup_32.o misc_32.o systbl.o
-obj-$(CONFIG_PPC64)             += misc_64.o
+obj-$(CONFIG_PPC64)             += misc_64.o dma_64.o iommu.o
 obj-$(CONFIG_PPC_OF)            += prom_init.o
 obj-$(CONFIG_MODULES)           += ppc_ksyms.o
 obj-$(CONFIG_BOOTX_TEXT)        += btext.o
 obj-$(CONFIG_6xx)               += idle_6xx.o
 obj-$(CONFIG_SMP)               += smp.o
+obj-$(CONFIG_KPROBES)           += kprobes.o
+
+module-$(CONFIG_PPC64)          += module_64.o
+obj-$(CONFIG_MODULES)           += $(module-y)
+
+pci64-$(CONFIG_PPC64)           += pci_64.o pci_dn.o pci_iommu.o \
+                                   pci_direct_iommu.o iomap.o
+obj-$(CONFIG_PCI)               += $(pci64-y)
+
+kexec64-$(CONFIG_PPC64)         += machine_kexec_64.o
+obj-$(CONFIG_KEXEC)             += $(kexec64-y)
 
 ifeq ($(CONFIG_PPC_ISERIES),y)
 $(obj)/head_64.o: $(obj)/lparmap.s
@@ -62,11 +73,8 @@ AFLAGS_head_64.o += -I$(obj)
 endif
 
 else
-# stuff used from here for ARCH=ppc or ARCH=ppc64
+# stuff used from here for ARCH=ppc
 smpobj-$(CONFIG_SMP)            += smp.o
-obj-$(CONFIG_PPC64)             += traps.o process.o init_task.o time.o \
-                                   setup-common.o $(smpobj-y)
-
 
 endif
 
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 4550eb4f4fbd..91538d2445bf 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -270,13 +270,15 @@ int main(void)
         DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
         DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
         DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
+        DEFINE(TSPC64_TV_SEC, offsetof(struct timespec, tv_sec));
+        DEFINE(TSPC64_TV_NSEC, offsetof(struct timespec, tv_nsec));
         DEFINE(TSPC32_TV_SEC, offsetof(struct compat_timespec, tv_sec));
         DEFINE(TSPC32_TV_NSEC, offsetof(struct compat_timespec, tv_nsec));
 #else
         DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
         DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
-        DEFINE(TSPEC32_TV_SEC, offsetof(struct timespec, tv_sec));
-        DEFINE(TSPEC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
+        DEFINE(TSPC32_TV_SEC, offsetof(struct timespec, tv_sec));
+        DEFINE(TSPC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
 #endif
         /* timeval/timezone offsets for use by vdso */
         DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
diff --git a/arch/ppc64/kernel/dma.c b/arch/powerpc/kernel/dma_64.c
index 7c3419656ccc..7c3419656ccc 100644
--- a/arch/ppc64/kernel/dma.c
+++ b/arch/powerpc/kernel/dma_64.c
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 5063c603fad4..8d60fa99fc4b 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -24,7 +24,7 @@
  *    Copyright 2002-2004 MontaVista Software, Inc.
  *      PowerPC 44x support, Matt Porter <mporter@kernel.crashing.org>
  *    Copyright 2004 Freescale Semiconductor, Inc
- *      PowerPC e500 modifications, Kumar Gala <kumar.gala@freescale.com>
+ *      PowerPC e500 modifications, Kumar Gala <galak@kernel.crashing.org>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
diff --git a/arch/ppc64/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 6160c8dbb7c5..6160c8dbb7c5 100644
--- a/arch/ppc64/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
diff --git a/arch/ppc64/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 4d9b4388918b..4d9b4388918b 100644
--- a/arch/ppc64/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 4b7940693f3d..5a71ed9612fe 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -71,6 +71,11 @@
 #include <asm/paca.h>
 #endif
 
+int __irq_offset_value;
+#ifdef CONFIG_PPC32
+EXPORT_SYMBOL(__irq_offset_value);
+#endif
+
 static int ppc_spurious_interrupts;
 
 #if defined(CONFIG_PPC_ISERIES) && defined(CONFIG_SMP)
@@ -98,7 +103,6 @@ extern atomic_t ipi_sent;
 EXPORT_SYMBOL(irq_desc);
 
 int distribute_irqs = 1;
-int __irq_offset_value;
 u64 ppc64_interrupt_controller;
 #endif /* CONFIG_PPC64 */
 
@@ -311,7 +315,6 @@ void __init init_IRQ(void)
 }
 
 #ifdef CONFIG_PPC64
-#ifndef CONFIG_PPC_ISERIES
 /*
  * Virtual IRQ mapping code, used on systems with XICS interrupt controllers.
  */
@@ -420,8 +423,6 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
 }
 
-#endif /* CONFIG_PPC_ISERIES */
-
 #ifdef CONFIG_IRQSTACKS
 struct thread_info *softirq_ctx[NR_CPUS];
 struct thread_info *hardirq_ctx[NR_CPUS];
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 511af54e6230..511af54e6230 100644
--- a/arch/ppc64/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 1b3ba8a440a6..9dda16ccde78 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -42,32 +42,6 @@
 
 /* #define LPARCFG_DEBUG */
 
-/* find a better place for this function... */
-static void log_plpar_hcall_return(unsigned long rc, char *tag)
-{
-        if (rc == 0)            /* success, return */
-                return;
-/* check for null tag ? */
-        if (rc == H_Hardware)
-                printk(KERN_INFO
-                       "plpar-hcall (%s) failed with hardware fault\n", tag);
-        else if (rc == H_Function)
-                printk(KERN_INFO
-                       "plpar-hcall (%s) failed; function not allowed\n", tag);
-        else if (rc == H_Authority)
-                printk(KERN_INFO
-                       "plpar-hcall (%s) failed; not authorized to this function\n",
-                       tag);
-        else if (rc == H_Parameter)
-                printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",
-                       tag);
-        else
-                printk(KERN_INFO
-                       "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n",
-                       tag, rc);
-
-}
-
 static struct proc_dir_entry *proc_ppc64_lparcfg;
 #define LPARCFG_BUFF_SIZE 4096
 
@@ -172,6 +146,31 @@ static int lparcfg_data(struct seq_file *m, void *v)
 /*
  * Methods used to fetch LPAR data when running on a pSeries platform.
  */
+/* find a better place for this function... */
+static void log_plpar_hcall_return(unsigned long rc, char *tag)
+{
+        if (rc == 0)            /* success, return */
+                return;
+/* check for null tag ? */
+        if (rc == H_Hardware)
+                printk(KERN_INFO
+                       "plpar-hcall (%s) failed with hardware fault\n", tag);
+        else if (rc == H_Function)
+                printk(KERN_INFO
+                       "plpar-hcall (%s) failed; function not allowed\n", tag);
+        else if (rc == H_Authority)
+                printk(KERN_INFO
+                       "plpar-hcall (%s) failed; not authorized to this function\n",
+                       tag);
+        else if (rc == H_Parameter)
+                printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",
+                       tag);
+        else
+                printk(KERN_INFO
+                       "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n",
+                       tag, rc);
+
+}
 
 /*
  * H_GET_PPP hcall returns info in 4 parms.
diff --git a/arch/ppc64/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec_64.c
index 07ea03598c00..97c51e452be7 100644
--- a/arch/ppc64/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -185,8 +185,8 @@ void kexec_copy_flush(struct kimage *image)
  */
 void kexec_smp_down(void *arg)
 {
-        if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down(1);
+        if (ppc_md.kexec_cpu_down)
+                ppc_md.kexec_cpu_down(0, 1);
 
         local_irq_disable();
         kexec_smp_wait();
@@ -233,8 +233,8 @@ static void kexec_prepare_cpus(void)
         }
 
         /* after we tell the others to go down */
-        if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down(0);
+        if (ppc_md.kexec_cpu_down)
+                ppc_md.kexec_cpu_down(0, 0);
 
         put_cpu();
 
@@ -255,8 +255,8 @@ static void kexec_prepare_cpus(void)
          * UP to an SMP kernel.
          */
         smp_release_cpus();
-        if (ppc_md.cpu_irq_down)
-                ppc_md.cpu_irq_down(0);
+        if (ppc_md.kexec_cpu_down)
+                ppc_md.kexec_cpu_down(0, 0);
         local_irq_disable();
 }
 
@@ -305,3 +305,54 @@ void machine_kexec(struct kimage *image)
                         ppc_md.hpte_clear_all);
         /* NOTREACHED */
 }
+
+/* Values we need to export to the second kernel via the device tree. */
+static unsigned long htab_base, htab_size, kernel_end;
+
+static struct property htab_base_prop = {
+        .name = "linux,htab-base",
+        .length = sizeof(unsigned long),
+        .value = (unsigned char *)&htab_base,
+};
+
+static struct property htab_size_prop = {
+        .name = "linux,htab-size",
+        .length = sizeof(unsigned long),
+        .value = (unsigned char *)&htab_size,
+};
+
+static struct property kernel_end_prop = {
+        .name = "linux,kernel-end",
+        .length = sizeof(unsigned long),
+        .value = (unsigned char *)&kernel_end,
+};
+
+static void __init export_htab_values(void)
+{
+        struct device_node *node;
+
+        node = of_find_node_by_path("/chosen");
+        if (!node)
+                return;
+
+        kernel_end = __pa(_end);
+        prom_add_property(node, &kernel_end_prop);
+
+        /* On machines with no htab htab_address is NULL */
+        if (NULL == htab_address)
+                goto out;
+
+        htab_base = __pa(htab_address);
+        prom_add_property(node, &htab_base_prop);
+
+        htab_size = 1UL << ppc64_pft_size;
+        prom_add_property(node, &htab_size_prop);
+
+ out:
+        of_node_put(node);
+}
+
+void __init kexec_setup(void)
+{
+        export_htab_values();
+}
diff --git a/arch/ppc64/kernel/module.c b/arch/powerpc/kernel/module_64.c
index 928b8581fcb0..928b8581fcb0 100644
--- a/arch/ppc64/kernel/module.c
+++ b/arch/powerpc/kernel/module_64.c
diff --git a/arch/ppc64/kernel/pci.c b/arch/powerpc/kernel/pci_64.c
index 3cef1b8f57f0..3cef1b8f57f0 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/powerpc/kernel/pci_64.c
diff --git a/arch/ppc64/kernel/pci_direct_iommu.c b/arch/powerpc/kernel/pci_direct_iommu.c
index e1a32f802c0b..e1a32f802c0b 100644
--- a/arch/ppc64/kernel/pci_direct_iommu.c
+++ b/arch/powerpc/kernel/pci_direct_iommu.c
diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 12c4c9e9bbc7..12c4c9e9bbc7 100644
--- a/arch/ppc64/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
diff --git a/arch/ppc64/kernel/pci_iommu.c b/arch/powerpc/kernel/pci_iommu.c
index bdf15dbbf4f0..bdf15dbbf4f0 100644
--- a/arch/ppc64/kernel/pci_iommu.c
+++ b/arch/powerpc/kernel/pci_iommu.c
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 5dcf4ba05ee8..59846b40d521 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -105,6 +105,13 @@ EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(__strncpy_from_user);
 EXPORT_SYMBOL(__strnlen_user);
 
+#ifndef  __powerpc64__
+EXPORT_SYMBOL(__ide_mm_insl);
+EXPORT_SYMBOL(__ide_mm_outsw);
+EXPORT_SYMBOL(__ide_mm_insw);
+EXPORT_SYMBOL(__ide_mm_outsl);
+#endif
+
 EXPORT_SYMBOL(_insb);
 EXPORT_SYMBOL(_outsb);
 EXPORT_SYMBOL(_insw);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 6a5b468edb4d..3bf968e74095 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1368,6 +1368,7 @@ prom_n_addr_cells(struct device_node* np)
         /* No #address-cells property for the root node, default to 1 */
         return 1;
 }
+EXPORT_SYMBOL(prom_n_addr_cells);
 
 int
 prom_n_size_cells(struct device_node* np)
@@ -1383,6 +1384,7 @@ prom_n_size_cells(struct device_node* np)
         /* No #size-cells property for the root node, default to 1 */
         return 1;
 }
+EXPORT_SYMBOL(prom_n_size_cells);
 
 /**
  * Work out the sense (active-low level / active-high edge)
diff --git a/arch/powerpc/kernel/rtas-rtc.c b/arch/powerpc/kernel/rtas-rtc.c
new file mode 100644
index 000000000000..7b948662704c
--- /dev/null
+++ b/arch/powerpc/kernel/rtas-rtc.c
@@ -0,0 +1,105 @@
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/rtc.h>
+#include <linux/delay.h>
+#include <asm/prom.h>
+#include <asm/rtas.h>
+#include <asm/time.h>
+
+
+#define MAX_RTC_WAIT 5000       /* 5 sec */
+#define RTAS_CLOCK_BUSY (-2)
+unsigned long __init rtas_get_boot_time(void)
+{
+        int ret[8];
+        int error, wait_time;
+        unsigned long max_wait_tb;
+
+        max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
+        do {
+                error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret);
+                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+                        wait_time = rtas_extended_busy_delay_time(error);
+                        /* This is boot time so we spin. */
+                        udelay(wait_time*1000);
+                        error = RTAS_CLOCK_BUSY;
+                }
+        } while (error == RTAS_CLOCK_BUSY && (get_tb() < max_wait_tb));
+
+        if (error != 0 && printk_ratelimit()) {
+                printk(KERN_WARNING "error: reading the clock failed (%d)\n",
+                        error);
+                return 0;
+        }
+
+        return mktime(ret[0], ret[1], ret[2], ret[3], ret[4], ret[5]);
+}
+
+/* NOTE: get_rtc_time will get an error if executed in interrupt context
+ * and if a delay is needed to read the clock.  In this case we just
+ * silently return without updating rtc_tm.
+ */
+void rtas_get_rtc_time(struct rtc_time *rtc_tm)
+{
+        int ret[8];
+        int error, wait_time;
+        unsigned long max_wait_tb;
+
+        max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
+        do {
+                error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret);
+                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+                        if (in_interrupt() && printk_ratelimit()) {
+                                memset(&rtc_tm, 0, sizeof(struct rtc_time));
+                                printk(KERN_WARNING "error: reading clock"
+                                       " would delay interrupt\n");
+                                return; /* delay not allowed */
+                        }
+                        wait_time = rtas_extended_busy_delay_time(error);
+                        msleep(wait_time);
+                        error = RTAS_CLOCK_BUSY;
+                }
+        } while (error == RTAS_CLOCK_BUSY && (get_tb() < max_wait_tb));
+
+        if (error != 0 && printk_ratelimit()) {
+                printk(KERN_WARNING "error: reading the clock failed (%d)\n",
+                       error);
+                return;
+        }
+
+        rtc_tm->tm_sec = ret[5];
+        rtc_tm->tm_min = ret[4];
+        rtc_tm->tm_hour = ret[3];
+        rtc_tm->tm_mday = ret[2];
+        rtc_tm->tm_mon = ret[1] - 1;
+        rtc_tm->tm_year = ret[0] - 1900;
+}
+
+int rtas_set_rtc_time(struct rtc_time *tm)
+{
+        int error, wait_time;
+        unsigned long max_wait_tb;
+
+        max_wait_tb = get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
+        do {
+                error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL,
+                                  tm->tm_year + 1900, tm->tm_mon + 1,
+                                  tm->tm_mday, tm->tm_hour, tm->tm_min,
+                                  tm->tm_sec, 0);
+                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
+                        if (in_interrupt())
+                                return 1;       /* probably decrementer */
+                        wait_time = rtas_extended_busy_delay_time(error);
+                        msleep(wait_time);
+                        error = RTAS_CLOCK_BUSY;
+                }
+        } while (error == RTAS_CLOCK_BUSY && (get_tb() < max_wait_tb));
+
+        if (error != 0 && printk_ratelimit())
+                printk(KERN_WARNING "error: setting the clock failed (%d)\n",
+                       error);
+
+        return 0;
+}
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index c98cfcc9cd9a..e5694335bf10 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -57,10 +57,6 @@ extern void power4_idle(void);
 boot_infos_t *boot_infos;
 struct ide_machdep_calls ppc_ide_md;
 
-/* XXX should go elsewhere */
-int __irq_offset_value;
-EXPORT_SYMBOL(__irq_offset_value);
-
 int boot_cpuid;
 EXPORT_SYMBOL_GPL(boot_cpuid);
 int boot_cpuid_phys;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index fdbd9f9122f2..608fee7c7e20 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -59,6 +59,7 @@
 #include <asm/firmware.h>
 #include <asm/xmon.h>
 #include <asm/udbg.h>
+#include <asm/kexec.h>
 
 #include "setup.h"
 
@@ -415,6 +416,10 @@ void __init setup_system(void)
          */
         unflatten_device_tree();
 
+#ifdef CONFIG_KEXEC
+        kexec_setup();  /* requires unflattened device tree. */
+#endif
+
         /*
          * Fill the ppc64_caches & systemcfg structures with informations
          * retreived from the device-tree. Need to be called before
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 8bdf95b7e420..5a2eba60dd39 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -403,8 +403,6 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
                     ELF_NFPREG * sizeof(double)))
                 return 1;
 
-        current->thread.fpscr.val = 0;  /* turn off all fp exceptions */
-
 #ifdef CONFIG_ALTIVEC
         /* save altivec registers */
         if (current->thread.used_vr) {
@@ -818,6 +816,9 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
                         goto badframe;
                 regs->link = (unsigned long) frame->tramp;
         }
+
+        current->thread.fpscr.val = 0;  /* turn off all fp exceptions */
+
         if (put_user(regs->gpr[1], (u32 __user *)newsp))
                 goto badframe;
         regs->gpr[1] = newsp;
@@ -1097,6 +1098,8 @@ static int handle_signal(unsigned long sig, struct k_sigaction *ka,
                 regs->link = (unsigned long) frame->mctx.tramp;
         }
 
+        current->thread.fpscr.val = 0;  /* turn off all fp exceptions */
+
         if (put_user(regs->gpr[1], (u32 __user *)newsp))
                 goto badframe;
         regs->gpr[1] = newsp;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 58194e150711..1decf2785530 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -131,9 +131,6 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
 
         flush_fp_to_thread(current);
 
-        /* Make sure signal doesn't get spurrious FP exceptions */
-        current->thread.fpscr.val = 0;
-
 #ifdef CONFIG_ALTIVEC
         err |= __put_user(v_regs, &sc->v_regs);
 
@@ -423,6 +420,9 @@ static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info,
         if (err)
                 goto badframe;
 
+        /* Make sure signal handler doesn't get spurious FP exceptions */
+        current->thread.fpscr.val = 0;
+
         /* Set up to return from userspace. */
         if (vdso64_rt_sigtramp && current->thread.vdso_base) {
                 regs->link = current->thread.vdso_base + vdso64_rt_sigtramp;
diff --git a/arch/powerpc/kernel/vdso32/datapage.S b/arch/powerpc/kernel/vdso32/datapage.S
index a08c26e87835..f6b38472318d 100644
--- a/arch/powerpc/kernel/vdso32/datapage.S
+++ b/arch/powerpc/kernel/vdso32/datapage.S
@@ -77,8 +77,9 @@ V_FUNCTION_BEGIN(__kernel_get_tbfreq)
         mflr    r12
   .cfi_register lr,r12
         bl      __get_datapage@local
-        lwz     r3,CFG_TB_TICKS_PER_SEC(r3)
         lwz     r4,(CFG_TB_TICKS_PER_SEC + 4)(r3)
+        lwz     r3,CFG_TB_TICKS_PER_SEC(r3)
         mtlr    r12
+        blr
   .cfi_endproc
 V_FUNCTION_END(__kernel_get_tbfreq)
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index aeb5fc9b87b3..0a32a41d50b0 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -83,7 +83,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
         /* Check for supported clock IDs */
         cmpli   cr0,r3,CLOCK_REALTIME
         cmpli   cr1,r3,CLOCK_MONOTONIC
-        cror    cr0,cr0,cr1
+        cror    cr0*4+eq,cr0*4+eq,cr1*4+eq
         bne     cr0,99f
 
         mflr    r12                     /* r12 saves lr */
@@ -91,7 +91,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
         mr      r10,r3                  /* r10 saves id */
         mr      r11,r4                  /* r11 saves tp */
         bl      __get_datapage@local    /* get data page */
-        mr      r9, r3                  /* datapage ptr in r9 */
+        mr      r9,r3                   /* datapage ptr in r9 */
         beq     cr1,50f                 /* if monotonic -> jump there */
 
         /*
@@ -173,10 +173,14 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
         add     r4,r4,r7
         lis     r5,NSEC_PER_SEC@h
         ori     r5,r5,NSEC_PER_SEC@l
-        cmpli   cr0,r4,r5
+        cmpl    cr0,r4,r5
+        cmpli   cr1,r4,0
         blt     1f
         subf    r4,r5,r4
         addi    r3,r3,1
+1:      bge     cr1,1f
+        addi    r3,r3,-1
+        add     r4,r4,r5
 1:      stw     r3,TSPC32_TV_SEC(r11)
         stw     r4,TSPC32_TV_NSEC(r11)
 
@@ -210,7 +214,7 @@ V_FUNCTION_BEGIN(__kernel_clock_getres)
         /* Check for supported clock IDs */
         cmpwi   cr0,r3,CLOCK_REALTIME
         cmpwi   cr1,r3,CLOCK_MONOTONIC
-        cror    cr0,cr0,cr1
+        cror    cr0*4+eq,cr0*4+eq,cr1*4+eq
         bne     cr0,99f
 
         li      r3,0
diff --git a/arch/powerpc/kernel/vdso64/datapage.S b/arch/powerpc/kernel/vdso64/datapage.S
index e67eda0f8cda..6393e4137bc7 100644
--- a/arch/powerpc/kernel/vdso64/datapage.S
+++ b/arch/powerpc/kernel/vdso64/datapage.S
@@ -80,5 +80,6 @@ V_FUNCTION_BEGIN(__kernel_get_tbfreq)
         bl      V_LOCAL_FUNC(__get_datapage)
         ld      r3,CFG_TB_TICKS_PER_SEC(r3)
         mtlr    r12
+        blr
   .cfi_endproc
 V_FUNCTION_END(__kernel_get_tbfreq)
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
index d371c02a8c0e..1a89094715cc 100644
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -1,4 +1,5 @@
-/*
+
+        /*
  * Userland implementation of gettimeofday() for 64 bits processes in a
  * ppc64 kernel for use in the vDSO
  *
@@ -68,7 +69,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
         /* Check for supported clock IDs */
         cmpwi   cr0,r3,CLOCK_REALTIME
         cmpwi   cr1,r3,CLOCK_MONOTONIC
-        cror    cr0,cr0,cr1
+        cror    cr0*4+eq,cr0*4+eq,cr1*4+eq
         bne     cr0,99f
 
         mflr    r12                     /* r12 saves lr */
@@ -84,16 +85,17 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
 
         bl      V_LOCAL_FUNC(__do_get_xsec)     /* get xsec from tb & kernel */
 
-        lis     r7,0x3b9a               /* r7 = 1000000000 = NSEC_PER_SEC */
-        ori     r7,r7,0xca00
+        lis     r7,15                   /* r7 = 1000000 = USEC_PER_SEC */
+        ori     r7,r7,16960
         rldicl  r5,r4,44,20             /* r5 = sec = xsec / XSEC_PER_SEC */
         rldicr  r6,r5,20,43             /* r6 = sec * XSEC_PER_SEC */
         std     r5,TSPC64_TV_SEC(r11)   /* store sec in tv */
         subf    r0,r6,r4                /* r0 = xsec = (xsec - r6) */
-        mulld   r0,r0,r7                /* nsec = (xsec * NSEC_PER_SEC) /
+        mulld   r0,r0,r7                /* usec = (xsec * USEC_PER_SEC) /
                                          * XSEC_PER_SEC
                                          */
         rldicl  r0,r0,44,20
+        mulli   r0,r0,1000              /* nsec = usec * 1000 */
         std     r0,TSPC64_TV_NSEC(r11)  /* store nsec in tp */
 
         mtlr    r12
@@ -106,15 +108,16 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
 
 50:     bl      V_LOCAL_FUNC(__do_get_xsec)     /* get xsec from tb & kernel */
 
-        lis     r7,0x3b9a               /* r7 = 1000000000 = NSEC_PER_SEC */
-        ori     r7,r7,0xca00
+        lis     r7,15                   /* r7 = 1000000 = USEC_PER_SEC */
+        ori     r7,r7,16960
         rldicl  r5,r4,44,20             /* r5 = sec = xsec / XSEC_PER_SEC */
         rldicr  r6,r5,20,43             /* r6 = sec * XSEC_PER_SEC */
         subf    r0,r6,r4                /* r0 = xsec = (xsec - r6) */
-        mulld   r0,r0,r7                /* nsec = (xsec * NSEC_PER_SEC) /
+        mulld   r0,r0,r7                /* usec = (xsec * USEC_PER_SEC) /
                                          * XSEC_PER_SEC
                                          */
         rldicl  r6,r0,44,20
+        mulli   r6,r6,1000              /* nsec = usec * 1000 */
 
         /* now we must fixup using wall to monotonic. We need to snapshot
          * that value and do the counter trick again. Fortunately, we still
@@ -123,8 +126,8 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
          * can be used
          */
 
-        lwz     r4,WTOM_CLOCK_SEC(r9)
-        lwz     r7,WTOM_CLOCK_NSEC(r9)
+        lwa     r4,WTOM_CLOCK_SEC(r3)
+        lwa     r7,WTOM_CLOCK_NSEC(r3)
 
         /* We now have our result in r4,r7. We create a fake dependency
          * on that result and re-check the counter
@@ -144,10 +147,14 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime)
         add     r7,r7,r6
         lis     r9,NSEC_PER_SEC@h
         ori     r9,r9,NSEC_PER_SEC@l
-        cmpli   cr0,r7,r9
+        cmpl    cr0,r7,r9
+        cmpli   cr1,r7,0
         blt     1f
         subf    r7,r9,r7
         addi    r4,r4,1
+1:      bge     cr1,1f
+        addi    r4,r4,-1
+        add     r7,r7,r9
 1:      std     r4,TSPC64_TV_SEC(r11)
         std     r7,TSPC64_TV_NSEC(r11)
 
@@ -181,7 +188,7 @@ V_FUNCTION_BEGIN(__kernel_clock_getres)
         /* Check for supported clock IDs */
         cmpwi   cr0,r3,CLOCK_REALTIME
         cmpwi   cr1,r3,CLOCK_MONOTONIC
-        cror    cr0,cr0,cr1
+        cror    cr0*4+eq,cr0*4+eq,cr1*4+eq
         bne     cr0,99f
 
         li      r3,0
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c
index af9ca0eb6d55..5d581bb3aa12 100644
--- a/arch/powerpc/mm/fsl_booke_mmu.c
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -1,5 +1,5 @@
 /*
- * Modifications by Kumar Gala (kumar.gala@freescale.com) to support
+ * Modifications by Kumar Gala (galak@kernel.crashing.org) to support
  * E500 Book E processors.
  *
  * Copyright 2004 Freescale Semiconductor, Inc
diff --git a/arch/powerpc/oprofile/op_model_fsl_booke.c b/arch/powerpc/oprofile/op_model_fsl_booke.c
index 86124a94c9af..26539cda6023 100644
--- a/arch/powerpc/oprofile/op_model_fsl_booke.c
+++ b/arch/powerpc/oprofile/op_model_fsl_booke.c
@@ -7,7 +7,7 @@
  * Copyright (c) 2004 Freescale Semiconductor, Inc
  *
  * Author: Andy Fleming
- * Maintainer: Kumar Gala <Kumar.Gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c
index 01090e9ce0cf..a58daa153686 100644
--- a/arch/powerpc/platforms/iseries/irq.c
+++ b/arch/powerpc/platforms/iseries/irq.c
@@ -42,13 +42,6 @@
 #include "irq.h"
 #include "call_pci.h"
 
-/* This maps virtual irq numbers to real irqs */
-unsigned int virt_irq_to_real_map[NR_IRQS];
-
-/* The next available virtual irq number */
-/* Note: the pcnet32 driver assumes irq numbers < 2 aren't valid. :( */
-static int next_virtual_irq = 2;
-
 static long Pci_Interrupt_Count;
 static long Pci_Event_Count;
 
@@ -350,26 +343,14 @@ static hw_irq_controller iSeries_IRQ_handler = {
 int __init iSeries_allocate_IRQ(HvBusNumber busNumber,
                 HvSubBusNumber subBusNumber, HvAgentId deviceId)
 {
-        unsigned int realirq, virtirq;
+        int virtirq;
+        unsigned int realirq;
         u8 idsel = (deviceId >> 4);
         u8 function = deviceId & 7;
 
-        virtirq = next_virtual_irq++;
         realirq = ((busNumber - 1) << 6) + ((idsel - 1) << 3) + function;
-        virt_irq_to_real_map[virtirq] = realirq;
+        virtirq = virt_irq_create_mapping(realirq);
 
         irq_desc[virtirq].handler = &iSeries_IRQ_handler;
         return virtirq;
 }
-
-int virt_irq_create_mapping(unsigned int real_irq)
-{
-        BUG(); /* Don't call this on iSeries, yet */
-
-        return 0;
-}
-
-void virt_irq_init(void)
-{
-        return;
-}
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 6a29f301436b..da26639190db 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -39,7 +39,6 @@
 #include <asm/sections.h>
 #include <asm/iommu.h>
 #include <asm/firmware.h>
-#include <asm/systemcfg.h>
 #include <asm/system.h>
 #include <asm/time.h>
 #include <asm/paca.h>
@@ -548,8 +547,6 @@ static unsigned long __init build_iSeries_Memory_Map(void)
  */
 static void __init iSeries_setup_arch(void)
 {
-        unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index;
-
         if (get_paca()->lppaca.shared_proc) {
                 ppc_md.idle_loop = iseries_shared_idle;
                 printk(KERN_INFO "Using shared processor idle loop\n");
@@ -565,9 +562,6 @@ static void __init iSeries_setup_arch(void)
                         itVpdAreas.xSlicMaxLogicalProcs);
         printk("Max physical processors = %d\n",
                         itVpdAreas.xSlicMaxPhysicalProcs);
-
-        _systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR;
-        printk("Processor version = %x\n", _systemcfg->processor);
 }
 
 static void iSeries_show_cpuinfo(struct seq_file *m)
diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
index 5947b21a8588..feb0a94e7819 100644
--- a/arch/powerpc/platforms/powermac/time.c
+++ b/arch/powerpc/platforms/powermac/time.c
@@ -102,7 +102,7 @@ static unsigned long from_rtc_time(struct rtc_time *tm)
 static unsigned long cuda_get_time(void)
 {
         struct adb_request req;
-        unsigned long now;
+        unsigned int now;
 
         if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
                 return 0;
@@ -113,7 +113,7 @@ static unsigned long cuda_get_time(void)
                        req.reply_len);
         now = (req.reply[3] << 24) + (req.reply[4] << 16)
                 + (req.reply[5] << 8) + req.reply[6];
-        return now - RTC_OFFSET;
+        return ((unsigned long)now) - RTC_OFFSET;
 }
 
 #define cuda_get_rtc_time(tm)   to_rtc_time(cuda_get_time(), (tm))
@@ -146,7 +146,7 @@ static int cuda_set_rtc_time(struct rtc_time *tm)
 static unsigned long pmu_get_time(void)
 {
         struct adb_request req;
-        unsigned long now;
+        unsigned int now;
 
         if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
                 return 0;
@@ -156,7 +156,7 @@ static unsigned long pmu_get_time(void)
                        req.reply_len);
         now = (req.reply[0] << 24) + (req.reply[1] << 16)
                 + (req.reply[2] << 8) + req.reply[3];
-        return now - RTC_OFFSET;
+        return ((unsigned long)now) - RTC_OFFSET;
 }
 
 #define pmu_get_rtc_time(tm)    to_rtc_time(pmu_get_time(), (tm))
@@ -199,6 +199,7 @@ static unsigned long smu_get_time(void)
 #define smu_set_rtc_time(tm, spin)      0
 #endif
 
+/* Can't be __init, it's called when suspending and resuming */
 unsigned long pmac_get_boot_time(void)
 {
         /* Get the time from the RTC, used only at boot time */
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index e7ca5b1f591e..06d5ef501218 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -4,4 +4,7 @@ obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_IBMVIO)    += vio.o
 obj-$(CONFIG_XICS)      += xics.o
 obj-$(CONFIG_SCANLOG)   += scanlog.o
-obj-$(CONFIG_EEH)    += eeh.o eeh_event.o
+obj-$(CONFIG_EEH)       += eeh.o eeh_event.o
+
+obj-$(CONFIG_HVC_CONSOLE)       += hvconsole.o
+obj-$(CONFIG_HVCS)              += hvcserver.o
diff --git a/arch/ppc64/kernel/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index 138e128a3886..138e128a3886 100644
--- a/arch/ppc64/kernel/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
diff --git a/arch/ppc64/kernel/hvcserver.c b/arch/powerpc/platforms/pseries/hvcserver.c
index 4d584172055a..4d584172055a 100644
--- a/arch/ppc64/kernel/hvcserver.c
+++ b/arch/powerpc/platforms/pseries/hvcserver.c
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 31990829310c..b9d9732b2e06 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -200,14 +200,12 @@ static void __init pSeries_setup_arch(void)
         if (ppc64_interrupt_controller == IC_OPEN_PIC) {
                 ppc_md.init_IRQ       = pSeries_init_mpic;
                 ppc_md.get_irq        = mpic_get_irq;
-                ppc_md.cpu_irq_down   = mpic_teardown_this_cpu;
                 /* Allocate the mpic now, so that find_and_init_phbs() can
                  * fill the ISUs */
                 pSeries_setup_mpic();
         } else {
                 ppc_md.init_IRQ       = xics_init_IRQ;
                 ppc_md.get_irq        = xics_get_irq;
-                ppc_md.cpu_irq_down   = xics_teardown_cpu;
         }
 
 #ifdef CONFIG_SMP
@@ -595,6 +593,27 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus)
         return PCI_PROBE_NORMAL;
 }
 
+#ifdef CONFIG_KEXEC
+static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
+{
+        /* Don't risk a hypervisor call if we're crashing */
+        if (!crash_shutdown) {
+                unsigned long vpa = __pa(&get_paca()->lppaca);
+
+                if (unregister_vpa(hard_smp_processor_id(), vpa)) {
+                        printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
+                                        "failed\n", smp_processor_id(),
+                                        hard_smp_processor_id());
+                }
+        }
+
+        if (ppc64_interrupt_controller == IC_OPEN_PIC)
+                mpic_teardown_this_cpu(secondary);
+        else
+                xics_teardown_cpu(secondary);
+}
+#endif
+
 struct machdep_calls __initdata pSeries_md = {
         .probe                  = pSeries_probe,
         .setup_arch             = pSeries_setup_arch,
@@ -617,4 +636,7 @@ struct machdep_calls __initdata pSeries_md = {
         .check_legacy_ioport    = pSeries_check_legacy_ioport,
         .system_reset_exception = pSeries_system_reset_exception,
         .machine_check_exception = pSeries_machine_check_exception,
+#ifdef CONFIG_KEXEC
+        .kexec_cpu_down         = pseries_kexec_cpu_down,
+#endif
 };
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index ef4356b29a97..c45a6ad5f3b7 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -19,6 +19,7 @@
 #include <linux/cpumask.h>
 #include <linux/module.h>
 #include <linux/sysrq.h>
+#include <linux/interrupt.h>
 
 #include <asm/ptrace.h>
 #include <asm/string.h>
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index 5063c603fad4..8d60fa99fc4b 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -24,7 +24,7 @@
  *    Copyright 2002-2004 MontaVista Software, Inc.
  *      PowerPC 44x support, Matt Porter <mporter@kernel.crashing.org>
  *    Copyright 2004 Freescale Semiconductor, Inc
- *      PowerPC e500 modifications, Kumar Gala <kumar.gala@freescale.com>
+ *      PowerPC e500 modifications, Kumar Gala <galak@kernel.crashing.org>
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
diff --git a/arch/ppc/mm/fsl_booke_mmu.c b/arch/ppc/mm/fsl_booke_mmu.c
index af9ca0eb6d55..5d581bb3aa12 100644
--- a/arch/ppc/mm/fsl_booke_mmu.c
+++ b/arch/ppc/mm/fsl_booke_mmu.c
@@ -1,5 +1,5 @@
 /*
- * Modifications by Kumar Gala (kumar.gala@freescale.com) to support
+ * Modifications by Kumar Gala (galak@kernel.crashing.org) to support
  * E500 Book E processors.
  *
  * Copyright 2004 Freescale Semiconductor, Inc
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index 98edc75f4105..04bdc39bf47b 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -3,7 +3,7 @@
  *
  * MPC834x SYS board specific routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
@@ -73,12 +73,19 @@ mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
              *       A      B      C      D
              */
         {
-                {PIRQA, PIRQB,  PIRQC,  PIRQD}, /* idsel 0x11 */
-                {PIRQC, PIRQD,  PIRQA,  PIRQB}, /* idsel 0x12 */
-                {PIRQD, PIRQA,  PIRQB,  PIRQC}  /* idsel 0x13 */
+                {PIRQA, PIRQB, PIRQC, PIRQD},   /* idsel 0x11 */
+                {PIRQC, PIRQD, PIRQA, PIRQB},   /* idsel 0x12 */
+                {PIRQD, PIRQA, PIRQB, PIRQC},   /* idsel 0x13 */
+                {0, 0, 0, 0},
+                {PIRQA, PIRQB, PIRQC, PIRQD},   /* idsel 0x15 */
+                {PIRQD, PIRQA, PIRQB, PIRQC},   /* idsel 0x16 */
+                {PIRQC, PIRQD, PIRQA, PIRQB},   /* idsel 0x17 */
+                {PIRQB, PIRQC, PIRQD, PIRQA},   /* idsel 0x18 */
+                {0, 0, 0, 0},                   /* idsel 0x19 */
+                {0, 0, 0, 0},                   /* idsel 0x20 */
         };
 
-        const long min_idsel = 0x11, max_idsel = 0x13, irqs_per_slot = 4;
+        const long min_idsel = 0x11, max_idsel = 0x20, irqs_per_slot = 4;
         return PCI_IRQ_TABLE_LOOKUP;
 }
 
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
index 58e44c042535..2e514d316fb8 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -3,7 +3,7 @@
  *
  * MPC834X SYS common board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor, Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c
index 7e952c1228cb..c5cde97c6ef0 100644
--- a/arch/ppc/platforms/85xx/mpc8540_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8540_ads.c
@@ -3,7 +3,7 @@
  *
  * MPC8540ADS board specific routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.h b/arch/ppc/platforms/85xx/mpc8540_ads.h
index 3d05d7c4a938..e48ca3a97397 100644
--- a/arch/ppc/platforms/85xx/mpc8540_ads.h
+++ b/arch/ppc/platforms/85xx/mpc8540_ads.h
@@ -3,7 +3,7 @@
  *
  * MPC8540ADS board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc8555_cds.h b/arch/ppc/platforms/85xx/mpc8555_cds.h
index e0e75568bc57..1a8e6c67355d 100644
--- a/arch/ppc/platforms/85xx/mpc8555_cds.h
+++ b/arch/ppc/platforms/85xx/mpc8555_cds.h
@@ -3,7 +3,7 @@
  *
  * MPC8555CDS board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.c b/arch/ppc/platforms/85xx/mpc8560_ads.c
index 208433f1e93a..8e39a5517092 100644
--- a/arch/ppc/platforms/85xx/mpc8560_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8560_ads.c
@@ -3,7 +3,7 @@
  *
  * MPC8560ADS board specific routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc8560_ads.h b/arch/ppc/platforms/85xx/mpc8560_ads.h
index 7df885d73e9d..143ae7eefa7c 100644
--- a/arch/ppc/platforms/85xx/mpc8560_ads.h
+++ b/arch/ppc/platforms/85xx/mpc8560_ads.h
@@ -3,7 +3,7 @@
  *
  * MPC8540ADS board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
index 16ad092d8a06..17ce48fe3503 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.c
@@ -3,7 +3,7 @@
  *
  * MPC85xx ADS board common routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
index 84acf6e8d45e..7b26bcc5d10d 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
+++ b/arch/ppc/platforms/85xx/mpc85xx_ads_common.h
@@ -3,7 +3,7 @@
  *
  * MPC85XX ADS common board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index a21156967a5e..d8991b88dc9c 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -3,7 +3,7 @@
  *
  * MPC85xx CDS board specific routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor, Inc
  *
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
index 12b292c6ae32..5b588cfd0e41 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
@@ -3,7 +3,7 @@
  *
  * MPC85xx CDS board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor, Inc
  *
diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c
index b4ee1707a836..45a5b81b4ed1 100644
--- a/arch/ppc/platforms/85xx/sbc8560.c
+++ b/arch/ppc/platforms/85xx/sbc8560.c
@@ -3,7 +3,7 @@
  * 
  * Wind River SBC8560 board specific routines
  * 
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  * 
diff --git a/arch/ppc/platforms/pmac_feature.c b/arch/ppc/platforms/pmac_feature.c
index 58884a63ebdb..1e69b0593162 100644
--- a/arch/ppc/platforms/pmac_feature.c
+++ b/arch/ppc/platforms/pmac_feature.c
@@ -2317,6 +2317,14 @@ static struct pmac_mb_def pmac_mb_defs[] = {
                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
         },
+        {       "PowerBook5,8",                 "PowerBook G4 15\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
+        {       "PowerBook5,9",                 "PowerBook G4 17\"",
+                PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
+                PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
+        },
         {       "PowerBook6,1",                 "PowerBook G4 12\"",
                 PMAC_TYPE_UNKNOWN_INTREPID,     intrepid_features,
                 PMAC_MB_MAY_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
diff --git a/arch/ppc/platforms/pq2ads.c b/arch/ppc/platforms/pq2ads.c
index 6a1475c1e128..71c9fca1fe9b 100644
--- a/arch/ppc/platforms/pq2ads.c
+++ b/arch/ppc/platforms/pq2ads.c
@@ -3,7 +3,7 @@
  *
  * PQ2ADS platform support
  *
- * Author: Kumar Gala <kumar.gala@freescale.com>
+ * Author: Kumar Gala <galak@kernel.crashing.org>
  * Derived from: est8260_setup.c by Allen Curtis
  *
  * Copyright 2004 Freescale Semiconductor, Inc.
diff --git a/arch/ppc/syslib/ipic.h b/arch/ppc/syslib/ipic.h
index 2b56a4fcf373..a7ce7da8785c 100644
--- a/arch/ppc/syslib/ipic.h
+++ b/arch/ppc/syslib/ipic.h
@@ -3,7 +3,7 @@
  *
  * IPIC private definitions and structure.
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor, Inc
  *
diff --git a/arch/ppc/syslib/mpc83xx_devices.c b/arch/ppc/syslib/mpc83xx_devices.c
index f43fbf9a9389..847df4409982 100644
--- a/arch/ppc/syslib/mpc83xx_devices.c
+++ b/arch/ppc/syslib/mpc83xx_devices.c
@@ -3,7 +3,7 @@
  *
  * MPC83xx Device descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/mpc83xx_sys.c b/arch/ppc/syslib/mpc83xx_sys.c
index da743446789b..a1523989aff4 100644
--- a/arch/ppc/syslib/mpc83xx_sys.c
+++ b/arch/ppc/syslib/mpc83xx_sys.c
@@ -3,7 +3,7 @@
  *
  * MPC83xx System descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/mpc85xx_devices.c b/arch/ppc/syslib/mpc85xx_devices.c
index 2ede677a0a53..69949d255658 100644
--- a/arch/ppc/syslib/mpc85xx_devices.c
+++ b/arch/ppc/syslib/mpc85xx_devices.c
@@ -3,7 +3,7 @@
  *
  * MPC85xx Device descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/mpc85xx_sys.c b/arch/ppc/syslib/mpc85xx_sys.c
index cb68d8c58348..397cfbcce5ea 100644
--- a/arch/ppc/syslib/mpc85xx_sys.c
+++ b/arch/ppc/syslib/mpc85xx_sys.c
@@ -3,7 +3,7 @@
  *
  * MPC85xx System descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/mpc8xx_devices.c b/arch/ppc/syslib/mpc8xx_devices.c
index 2b5f0e701687..92dc98b36bde 100644
--- a/arch/ppc/syslib/mpc8xx_devices.c
+++ b/arch/ppc/syslib/mpc8xx_devices.c
@@ -3,7 +3,7 @@
  *
  * MPC8xx Device descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 MontaVista Software, Inc. by Vitaly Bordug<vbordug@ru.mvista.com>
  *
diff --git a/arch/ppc/syslib/mpc8xx_sys.c b/arch/ppc/syslib/mpc8xx_sys.c
index 3cc27d29e3af..d3c617521603 100644
--- a/arch/ppc/syslib/mpc8xx_sys.c
+++ b/arch/ppc/syslib/mpc8xx_sys.c
@@ -3,7 +3,7 @@
  *
  * MPC8xx System descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 MontaVista Software, Inc. by Vitaly Bordug <vbordug@ru.mvista.com>
  *
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
index 4da168a6ad03..1b5fe9e398d4 100644
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -3,7 +3,7 @@
  *
  * MPC83XX common board code
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc83xx_setup.h b/arch/ppc/syslib/ppc83xx_setup.h
index c766c1a5f786..a122a7322e5e 100644
--- a/arch/ppc/syslib/ppc83xx_setup.h
+++ b/arch/ppc/syslib/ppc83xx_setup.h
@@ -3,7 +3,7 @@
  *
  * MPC83XX common board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc85xx_common.c b/arch/ppc/syslib/ppc85xx_common.c
index da841dacdc13..19ad537225e4 100644
--- a/arch/ppc/syslib/ppc85xx_common.c
+++ b/arch/ppc/syslib/ppc85xx_common.c
@@ -3,7 +3,7 @@
  *
  * MPC85xx support routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc85xx_common.h b/arch/ppc/syslib/ppc85xx_common.h
index 2c8f304441bf..94edf32151dd 100644
--- a/arch/ppc/syslib/ppc85xx_common.h
+++ b/arch/ppc/syslib/ppc85xx_common.h
@@ -3,7 +3,7 @@
  *
  * MPC85xx support routines
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc85xx_setup.c b/arch/ppc/syslib/ppc85xx_setup.c
index de2f90576577..1a47ff4b831d 100644
--- a/arch/ppc/syslib/ppc85xx_setup.c
+++ b/arch/ppc/syslib/ppc85xx_setup.c
@@ -3,7 +3,7 @@
  *
  * MPC85XX common board code
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc85xx_setup.h b/arch/ppc/syslib/ppc85xx_setup.h
index 6e6cfe162faf..e340b0545fb5 100644
--- a/arch/ppc/syslib/ppc85xx_setup.h
+++ b/arch/ppc/syslib/ppc85xx_setup.h
@@ -3,7 +3,7 @@
  *
  * MPC85XX common board definitions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2004 Freescale Semiconductor Inc.
  *
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c
index 603f01190816..c0b93c4191ee 100644
--- a/arch/ppc/syslib/ppc_sys.c
+++ b/arch/ppc/syslib/ppc_sys.c
@@ -3,7 +3,7 @@
  *
  * PPC System library functions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * Copyright 2005 Freescale Semiconductor Inc.
  * Copyright 2005 MontaVista, Inc. by Vitaly Bordug <vbordug@ru.mvista.com>
diff --git a/arch/ppc/syslib/pq2_devices.c b/arch/ppc/syslib/pq2_devices.c
index e960fe935325..6ff3aab82fc3 100644
--- a/arch/ppc/syslib/pq2_devices.c
+++ b/arch/ppc/syslib/pq2_devices.c
@@ -3,7 +3,7 @@
  *
  * PQ2 Device descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2. This program is licensed "as is" without any warranty of any
diff --git a/arch/ppc/syslib/pq2_sys.c b/arch/ppc/syslib/pq2_sys.c
index 7b6c9ebdb9e3..36d6e2179940 100644
--- a/arch/ppc/syslib/pq2_sys.c
+++ b/arch/ppc/syslib/pq2_sys.c
@@ -3,7 +3,7 @@
  *
  * PQ2 System descriptions
  *
- * Maintainer: Kumar Gala <kumar.gala@freescale.com>
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2. This program is licensed "as is" without any warranty of any
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
deleted file mode 100644
index 9d10c12e87fe..000000000000
--- a/arch/ppc64/Kconfig
+++ /dev/null
@@ -1,520 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-config 64BIT
-        def_bool y
-
-config MMU
-        bool
-        default y
-
-config PPC_STD_MMU
-        def_bool y
-
-config UID16
-        bool
-
-config RWSEM_GENERIC_SPINLOCK
-        bool
-
-config RWSEM_XCHGADD_ALGORITHM
-        bool
-        default y
-
-config GENERIC_CALIBRATE_DELAY
-        bool
-        default y
-
-config GENERIC_ISA_DMA
-        bool
-        default y
-
-config EARLY_PRINTK
-        bool
-        default y
-
-config COMPAT
-        bool
-        default y
-
-config SCHED_NO_NO_OMIT_FRAME_POINTER
-        bool
-        default y
-
-config ARCH_MAY_HAVE_PC_FDC
-        bool
-        default y
-
-config PPC_STD_MMU
-        bool
-        default y
-
-# We optimistically allocate largepages from the VM, so make the limit
-# large enough (16MB). This badly named config option is actually
-# max order + 1
-config FORCE_MAX_ZONEORDER
-        int
-        default "9" if PPC_64K_PAGES
-        default "13"
-
-source "init/Kconfig"
-
-config SYSVIPC_COMPAT
-        bool
-        depends on COMPAT && SYSVIPC
-        default y
-
-menu "Platform support"
-
-choice
-        prompt "Platform Type"
-        default PPC_MULTIPLATFORM
-
-config PPC_ISERIES
-        bool "IBM Legacy iSeries"
-
-config PPC_MULTIPLATFORM
-        bool "Generic"
-
-endchoice
-
-config PPC_PSERIES
-        depends on PPC_MULTIPLATFORM
-        bool "  IBM pSeries & new iSeries"
-        default y
-
-config PPC_BPA
-        bool "  Broadband Processor Architecture"
-        depends on PPC_MULTIPLATFORM
-
-config PPC_PMAC
-        depends on PPC_MULTIPLATFORM
-        bool "  Apple G5 based machines"
-        default y
-        select U3_DART
-        select GENERIC_TBSYNC
-
-config PPC_MAPLE
-        depends on PPC_MULTIPLATFORM
-        bool "  Maple 970FX Evaluation Board"
-        select U3_DART
-        select MPIC_BROKEN_U3
-        select GENERIC_TBSYNC
-        default n
-        help
-          This option enables support for the Maple 970FX Evaluation Board.
-          For more informations, refer to <http://www.970eval.com>
-
-config PPC
-        bool
-        default y
-
-config PPC64
-        bool
-        default y
-
-config PPC_OF
-        depends on PPC_MULTIPLATFORM
-        bool
-        default y
-
-config XICS
-        depends on PPC_PSERIES
-        bool
-        default y
-
-config MPIC
-        depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE
-        bool
-        default y
-
-config PPC_I8259
-        depends on PPC_PSERIES
-        bool
-        default y
-
-config BPA_IIC
-        depends on PPC_BPA
-        bool
-        default y
-
-# VMX is pSeries only for now until somebody writes the iSeries
-# exception vectors for it
-config ALTIVEC
-        bool "Support for VMX (Altivec) vector unit"
-        depends on PPC_MULTIPLATFORM
-        default y
-
-config PPC_SPLPAR
-        depends on PPC_PSERIES
-        bool "Support for shared-processor logical partitions"
-        default n
-        help
-          Enabling this option will make the kernel run more efficiently
-          on logically-partitioned pSeries systems which use shared
-          processors, that is, which share physical processors between
-          two or more partitions.
-
-config KEXEC
-        bool "kexec system call (EXPERIMENTAL)"
-        depends on PPC_MULTIPLATFORM && EXPERIMENTAL
-        help
-          kexec is a system call that implements the ability to shutdown your
-          current kernel, and to start another kernel.  It is like a reboot
-          but it is indepedent of the system firmware.  And like a reboot
-          you can start any kernel with it, not just Linux.
-
-          The name comes from the similiarity to the exec system call.
-
-          It is an ongoing process to be certain the hardware in a machine
-          is properly shutdown, so do not be surprised if this code does not
-          initially work for you.  It may help to enable device hotplugging
-          support.  As of this writing the exact hardware interface is
-          strongly in flux, so no good recommendation can be made.
-
-source "drivers/cpufreq/Kconfig"
-
-config CPU_FREQ_PMAC64
-        bool "Support for some Apple G5s"
-        depends on CPU_FREQ && PMAC_SMU && PPC64
-        select CPU_FREQ_TABLE
-        help
-          This adds support for frequency switching on Apple iMac G5,
-          and some of the more recent desktop G5 machines as well.
-
-config IBMVIO
-        depends on PPC_PSERIES || PPC_ISERIES
-        bool
-        default y
-
-config U3_DART
-        bool 
-        depends on PPC_MULTIPLATFORM
-        default n
-
-config MPIC_BROKEN_U3
-        bool
-        depends on PPC_MAPLE
-        default y
-
-config GENERIC_TBSYNC
-        def_bool n
-
-config PPC_PMAC64
-        bool
-        depends on PPC_PMAC
-        default y
-
-config BOOTX_TEXT
-        bool "Support for early boot text console"
-        depends PPC_OF
-        help
-          Say Y here to see progress messages from the boot firmware in text
-          mode. Requires an Open Firmware compatible video card.
-
-config POWER4
-        def_bool y
-
-config PPC_FPU
-        def_bool y
-
-config POWER4_ONLY
-        bool "Optimize for POWER4"
-        default n
-        ---help---
-          Cause the compiler to optimize for POWER4 processors. The resulting
-          binary will not work on POWER3 or RS64 processors when compiled with
-          binutils 2.15 or later.
-
-config IOMMU_VMERGE
-        bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
-        depends on EXPERIMENTAL
-        default n
-        help
-          Cause IO segments sent to a device for DMA to be merged virtually
-          by the IOMMU when they happen to have been allocated contiguously.
-          This doesn't add pressure to the IOMMU allocator. However, some
-          drivers don't support getting large merged segments coming back
-          from *_map_sg(). Say Y if you know the drivers you are using are
-          properly handling this case.
-
-config SMP
-        bool "Symmetric multi-processing support"
-        ---help---
-          This enables support for systems with more than one CPU. If you have
-          a system with only one CPU, say N. If you have a system with more
-          than one CPU, say Y.
-
-          If you say N here, the kernel will run on single and multiprocessor
-          machines, but will use only one CPU of a multiprocessor machine. If
-          you say Y here, the kernel will run on single-processor machines.
-          On a single-processor machine, the kernel will run faster if you say
-          N here.
-
-          If you don't know what to do here, say Y.
-
-config NR_CPUS
-        int "Maximum number of CPUs (2-128)"
-        range 2 128
-        depends on SMP
-        default "32"
-
-config HMT
-        bool "Hardware multithreading"
-        depends on SMP && PPC_PSERIES && BROKEN
-        help
-          This option enables hardware multithreading on RS64 cpus.
-          pSeries systems p620 and p660 have such a cpu type.
-
-config NUMA
-        bool "NUMA support"
-        default y if SMP && PPC_PSERIES
-
-config ARCH_SELECT_MEMORY_MODEL
-        def_bool y
-
-config ARCH_FLATMEM_ENABLE
-       def_bool y
-       depends on !NUMA
-
-config ARCH_SPARSEMEM_ENABLE
-        def_bool y
-
-config ARCH_SPARSEMEM_DEFAULT
-        def_bool y
-        depends on NUMA
-
-source "mm/Kconfig"
-
-config HAVE_ARCH_EARLY_PFN_TO_NID
-        def_bool y
-        depends on NEED_MULTIPLE_NODES
-
-config ARCH_MEMORY_PROBE
-        def_bool y
-        depends on MEMORY_HOTPLUG
-
-# Some NUMA nodes have memory ranges that span
-# other nodes.  Even though a pfn is valid and
-# between a node's start and end pfns, it may not
-# reside on that node.
-#
-# This is a relatively temporary hack that should
-# be able to go away when sparsemem is fully in
-# place
-config NODES_SPAN_OTHER_NODES
-        def_bool y
-        depends on NEED_MULTIPLE_NODES
-
-config PPC_64K_PAGES
-        bool "64k page size"
-        help
-          This option changes the kernel logical page size to 64k. On machines
-          without processor support for 64k pages, the kernel will simulate
-          them by loading each individual 4k page on demand transparently,
-          while on hardware with such support, it will be used to map
-          normal application pages.
-
-config SCHED_SMT
-        bool "SMT (Hyperthreading) scheduler support"
-        depends on SMP
-        default off
-        help
-          SMT scheduler support improves the CPU scheduler's decision making
-          when dealing with POWER5 cpus at a cost of slightly increased
-          overhead in some places. If unsure say N here.
-
-source "kernel/Kconfig.preempt"
-source kernel/Kconfig.hz
-
-config EEH
-        bool "PCI Extended Error Handling (EEH)" if EMBEDDED
-        depends on PPC_PSERIES
-        default y if !EMBEDDED
-
-#
-# Use the generic interrupt handling code in kernel/irq/:
-#
-config GENERIC_HARDIRQS
-        bool
-        default y
-
-config PPC_RTAS
-        bool
-        depends on PPC_PSERIES || PPC_BPA
-        default y
-
-config RTAS_ERROR_LOGGING
-        bool
-        depends on PPC_RTAS
-        default y
-
-config RTAS_PROC
-        bool "Proc interface to RTAS"
-        depends on PPC_RTAS
-        default y
-
-config RTAS_FLASH
-        tristate "Firmware flash interface"
-        depends on RTAS_PROC
-
-config SCANLOG
-        tristate "Scanlog dump interface"
-        depends on RTAS_PROC && PPC_PSERIES
-
-config LPARCFG
-        tristate "LPAR Configuration Data"
-        depends on PPC_PSERIES || PPC_ISERIES
-        help
-        Provide system capacity information via human readable
-        <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
-
-config SECCOMP
-        bool "Enable seccomp to safely compute untrusted bytecode"
-        depends on PROC_FS
-        default y
-        help
-          This kernel feature is useful for number crunching applications
-          that may need to compute untrusted bytecode during their
-          execution. By using pipes or other transports made available to
-          the process as file descriptors supporting the read/write
-          syscalls, it's possible to isolate those applications in
-          their own address space using seccomp. Once seccomp is
-          enabled via /proc/<pid>/seccomp, it cannot be disabled
-          and the task is only allowed to execute a few safe syscalls
-          defined by each seccomp mode.
-
-          If unsure, say Y. Only embedded should say N here.
-
-source "fs/Kconfig.binfmt"
-
-config HOTPLUG_CPU
-        bool "Support for hot-pluggable CPUs"
-        depends on SMP && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
-        select HOTPLUG
-        ---help---
-          Say Y here to be able to turn CPUs off and on.
-
-          Say N if you are unsure.
-
-config PROC_DEVICETREE
-        bool "Support for Open Firmware device tree in /proc"
-        help
-          This option adds a device-tree directory under /proc which contains
-          an image of the device tree that the kernel copies from Open
-          Firmware. If unsure, say Y here.
-
-config CMDLINE_BOOL
-        bool "Default bootloader kernel arguments"
-        depends on !PPC_ISERIES
-
-config CMDLINE
-        string "Initial kernel command string"
-        depends on CMDLINE_BOOL
-        default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
-        help
-          On some platforms, there is currently no way for the boot loader to
-          pass arguments to the kernel. For these platforms, you can supply
-          some command-line options at build time by entering them here.  In
-          most cases you will need to specify the root device here.
-
-endmenu
-
-config ISA_DMA_API
-        bool
-        default y
-
-menu "Bus Options"
-
-config ISA
-        bool
-        help
-          Find out whether you have ISA slots on your motherboard.  ISA is the
-          name of a bus system, i.e. the way the CPU talks to the other stuff
-          inside your box.  If you have an Apple machine, say N here; if you
-          have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
-          you have an embedded board, consult your board documentation.
-
-config SBUS
-        bool
-
-config MCA
-        bool
-
-config EISA
-        bool
-
-config PCI
-        bool "support for PCI devices" if (EMBEDDED && PPC_ISERIES)
-        default y
-        help
-          Find out whether your system includes a PCI bus. PCI is the name of
-          a bus system, i.e. the way the CPU talks to the other stuff inside
-          your box.  If you say Y here, the kernel will include drivers and
-          infrastructure code to support PCI bus devices.
-
-config PCI_DOMAINS
-        bool
-        default PCI
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-menu "iSeries device drivers"
-        depends on PPC_ISERIES
-
-config VIOCONS
-        tristate "iSeries Virtual Console Support"
-
-config VIODASD
-        tristate "iSeries Virtual I/O disk support"
-        help
-          If you are running on an iSeries system and you want to use
-          virtual disks created and managed by OS/400, say Y.
-
-config VIOCD
-        tristate "iSeries Virtual I/O CD support"
-        help
-          If you are running Linux on an IBM iSeries system and you want to
-          read a CD drive owned by OS/400, say Y here.
-
-config VIOTAPE
-        tristate "iSeries Virtual Tape Support"
-        help
-          If you are running Linux on an iSeries system and you want Linux
-          to read and/or write a tape drive owned by OS/400, say Y here.
-
-endmenu
-
-config VIOPATH
-        bool
-        depends on VIOCONS || VIODASD || VIOCD || VIOTAPE || VETH
-        default y
-
-source "arch/powerpc/oprofile/Kconfig"
-
-source "arch/ppc64/Kconfig.debug"
-
-source "security/Kconfig"
-
-config KEYS_COMPAT
-        bool
-        depends on COMPAT && KEYS
-        default y
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index dac4cc20fa93..e876c213f5ce 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -2,45 +2,6 @@
 # Makefile for the linux ppc64 kernel.
 #
 
-ifneq ($(CONFIG_PPC_MERGE),y)
-
-EXTRA_CFLAGS    += -mno-minimal-toc
-extra-y         := head.o vmlinux.lds
-
-obj-y               :=  misc.o prom.o
-
-endif
-
-obj-y               +=  idle.o dma.o \
-                        align.o \
-                        rtc.o \
-                        iommu.o
-
-pci-obj-$(CONFIG_PPC_MULTIPLATFORM)     += pci_dn.o pci_direct_iommu.o
-
-obj-$(CONFIG_PCI)       += pci.o pci_iommu.o iomap.o $(pci-obj-y)
+obj-y               +=  idle.o align.o
 
 obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o
-ifneq ($(CONFIG_PPC_MERGE),y)
-obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
-endif
-
-obj-$(CONFIG_KEXEC)             += machine_kexec.o
-obj-$(CONFIG_MODULES)           += module.o
-ifneq ($(CONFIG_PPC_MERGE),y)
-obj-$(CONFIG_MODULES)           += ppc_ksyms.o
-endif
-obj-$(CONFIG_HVC_CONSOLE)       += hvconsole.o
-ifneq ($(CONFIG_PPC_MERGE),y)
-obj-$(CONFIG_BOOTX_TEXT)        += btext.o
-endif
-obj-$(CONFIG_HVCS)              += hvcserver.o
-
-obj-$(CONFIG_KPROBES)           += kprobes.o
-
-ifneq ($(CONFIG_PPC_MERGE),y)
-ifeq ($(CONFIG_PPC_ISERIES),y)
-arch/ppc64/kernel/head.o: arch/powerpc/kernel/lparmap.s
-AFLAGS_head.o += -Iarch/powerpc/kernel
-endif
-endif
diff --git a/arch/ppc64/kernel/asm-offsets.c b/arch/ppc64/kernel/asm-offsets.c
deleted file mode 100644
index 84ab5c18ef52..000000000000
--- a/arch/ppc64/kernel/asm-offsets.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/time.h>
-#include <linux/hardirq.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-
-#include <asm/paca.h>
-#include <asm/lppaca.h>
-#include <asm/iseries/hv_lp_event.h>
-#include <asm/rtas.h>
-#include <asm/cputable.h>
-#include <asm/cache.h>
-#include <asm/systemcfg.h>
-#include <asm/compat.h>
-
-#define DEFINE(sym, val) \
-        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define BLANK() asm volatile("\n->" : : )
-
-int main(void)
-{
-        /* thread struct on stack */
-        DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
-        DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
-        DEFINE(TI_SC_NOERR, offsetof(struct thread_info, syscall_noerror));
-
-        /* task_struct->thread */
-        DEFINE(THREAD, offsetof(struct task_struct, thread));
-        DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
-        DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
-        DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
-        DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
-        DEFINE(KSP, offsetof(struct thread_struct, ksp));
-        DEFINE(KSP_VSID, offsetof(struct thread_struct, ksp_vsid));
-
-#ifdef CONFIG_ALTIVEC
-        DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
-        DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
-        DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
-        DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
-#endif /* CONFIG_ALTIVEC */
-        DEFINE(MM, offsetof(struct task_struct, mm));
-        DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context));
-
-        DEFINE(DCACHEL1LINESIZE, offsetof(struct ppc64_caches, dline_size));
-        DEFINE(DCACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_dline_size));
-        DEFINE(DCACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, dlines_per_page));
-        DEFINE(ICACHEL1LINESIZE, offsetof(struct ppc64_caches, iline_size));
-        DEFINE(ICACHEL1LOGLINESIZE, offsetof(struct ppc64_caches, log_iline_size));
-        DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page));
-        DEFINE(PLATFORM_LPAR, PLATFORM_LPAR);
-
-        /* paca */
-        DEFINE(PACA_SIZE, sizeof(struct paca_struct));
-        DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index));
-        DEFINE(PACAPROCSTART, offsetof(struct paca_struct, cpu_start));
-        DEFINE(PACAKSAVE, offsetof(struct paca_struct, kstack));
-        DEFINE(PACACURRENT, offsetof(struct paca_struct, __current));
-        DEFINE(PACASAVEDMSR, offsetof(struct paca_struct, saved_msr));
-        DEFINE(PACASTABREAL, offsetof(struct paca_struct, stab_real));
-        DEFINE(PACASTABVIRT, offsetof(struct paca_struct, stab_addr));
-        DEFINE(PACASTABRR, offsetof(struct paca_struct, stab_rr));
-        DEFINE(PACAR1, offsetof(struct paca_struct, saved_r1));
-        DEFINE(PACATOC, offsetof(struct paca_struct, kernel_toc));
-        DEFINE(PACAPROCENABLED, offsetof(struct paca_struct, proc_enabled));
-        DEFINE(PACASLBCACHE, offsetof(struct paca_struct, slb_cache));
-        DEFINE(PACASLBCACHEPTR, offsetof(struct paca_struct, slb_cache_ptr));
-        DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
-#ifdef CONFIG_PPC_64K_PAGES
-        DEFINE(PACAPGDIR, offsetof(struct paca_struct, pgdir));
-#endif
-#ifdef CONFIG_HUGETLB_PAGE
-        DEFINE(PACALOWHTLBAREAS, offsetof(struct paca_struct, context.low_htlb_areas));
-        DEFINE(PACAHIGHHTLBAREAS, offsetof(struct paca_struct, context.high_htlb_areas));
-#endif /* CONFIG_HUGETLB_PAGE */
-        DEFINE(PACADEFAULTDECR, offsetof(struct paca_struct, default_decr));
-        DEFINE(PACA_EXGEN, offsetof(struct paca_struct, exgen));
-        DEFINE(PACA_EXMC, offsetof(struct paca_struct, exmc));
-        DEFINE(PACA_EXSLB, offsetof(struct paca_struct, exslb));
-        DEFINE(PACA_EXDSI, offsetof(struct paca_struct, exdsi));
-        DEFINE(PACAEMERGSP, offsetof(struct paca_struct, emergency_sp));
-        DEFINE(PACALPPACA, offsetof(struct paca_struct, lppaca));
-        DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id));
-        DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
-        DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
-        DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
-        DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
-
-        /* RTAS */
-        DEFINE(RTASBASE, offsetof(struct rtas_t, base));
-        DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
-
-        /* Interrupt register frame */
-        DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
-
-        DEFINE(SWITCH_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
-
-        /* 288 = # of volatile regs, int & fp, for leaf routines */
-        /* which do not stack a frame.  See the PPC64 ABI.       */
-        DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 288);
-        /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */
-        DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
-        DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16);
-        DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0]));
-        DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1]));
-        DEFINE(GPR2, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[2]));
-        DEFINE(GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[3]));
-        DEFINE(GPR4, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[4]));
-        DEFINE(GPR5, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[5]));
-        DEFINE(GPR6, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[6]));
-        DEFINE(GPR7, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[7]));
-        DEFINE(GPR8, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[8]));
-        DEFINE(GPR9, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[9]));
-        DEFINE(GPR10, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[10]));
-        DEFINE(GPR11, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[11]));
-        DEFINE(GPR12, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[12]));
-        DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13]));
-        /*
-         * Note: these symbols include _ because they overlap with special
-         * register names
-         */
-        DEFINE(_NIP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, nip));
-        DEFINE(_MSR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, msr));
-        DEFINE(_CTR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ctr));
-        DEFINE(_LINK, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, link));
-        DEFINE(_CCR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, ccr));
-        DEFINE(_XER, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, xer));
-        DEFINE(_DAR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dar));
-        DEFINE(_DSISR, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, dsisr));
-        DEFINE(ORIG_GPR3, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, orig_gpr3));
-        DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result));
-        DEFINE(_TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
-        DEFINE(SOFTE, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, softe));
-
-        /* These _only_ to be used with {PROM,RTAS}_FRAME_SIZE!!! */
-        DEFINE(_SRR0, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs));
-        DEFINE(_SRR1, STACK_FRAME_OVERHEAD+sizeof(struct pt_regs)+8);
-
-        DEFINE(CLONE_VM, CLONE_VM);
-        DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
-
-        /* About the CPU features table */
-        DEFINE(CPU_SPEC_ENTRY_SIZE, sizeof(struct cpu_spec));
-        DEFINE(CPU_SPEC_PVR_MASK, offsetof(struct cpu_spec, pvr_mask));
-        DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
-        DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
-        DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
-
-        /* systemcfg offsets for use by vdso */
-        DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct systemcfg, tb_orig_stamp));
-        DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct systemcfg, tb_ticks_per_sec));
-        DEFINE(CFG_TB_TO_XS, offsetof(struct systemcfg, tb_to_xs));
-        DEFINE(CFG_STAMP_XSEC, offsetof(struct systemcfg, stamp_xsec));
-        DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct systemcfg, tb_update_count));
-        DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct systemcfg, tz_minuteswest));
-        DEFINE(CFG_TZ_DSTTIME, offsetof(struct systemcfg, tz_dsttime));
-        DEFINE(CFG_SYSCALL_MAP32, offsetof(struct systemcfg, syscall_map_32));
-        DEFINE(CFG_SYSCALL_MAP64, offsetof(struct systemcfg, syscall_map_64));
-
-        /* timeval/timezone offsets for use by vdso */
-        DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
-        DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
-        DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
-        DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
-        DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
-        DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
-
-        return 0;
-}
diff --git a/arch/ppc64/kernel/btext.c b/arch/ppc64/kernel/btext.c
deleted file mode 100644
index 506a37885c5c..000000000000
--- a/arch/ppc64/kernel/btext.c
+++ /dev/null
@@ -1,792 +0,0 @@
-/*
- * Procedures for drawing on the screen early on in the boot process.
- *
- * Benjamin Herrenschmidt <benh@kernel.crashing.org>
- */
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/btext.h>
-#include <asm/prom.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/lmb.h>
-#include <asm/processor.h>
-#include <asm/udbg.h>
-
-#undef NO_SCROLL
-
-#ifndef NO_SCROLL
-static void scrollscreen(void);
-#endif
-
-static void draw_byte(unsigned char c, long locX, long locY);
-static void draw_byte_32(unsigned char *bits, unsigned int *base, int rb);
-static void draw_byte_16(unsigned char *bits, unsigned int *base, int rb);
-static void draw_byte_8(unsigned char *bits, unsigned int *base, int rb);
-
-static int g_loc_X;
-static int g_loc_Y;
-static int g_max_loc_X;
-static int g_max_loc_Y;
-
-static int dispDeviceRowBytes;
-static int dispDeviceDepth;
-static int dispDeviceRect[4];
-static unsigned char *dispDeviceBase, *logicalDisplayBase;
-
-unsigned long disp_BAT[2] __initdata = {0, 0};
-
-#define cmapsz  (16*256)
-
-static unsigned char vga_font[cmapsz];
-
-int boot_text_mapped;
-int force_printk_to_btext = 0;
-
-
-/* Here's a small text engine to use during early boot
- * or for debugging purposes
- *
- * todo:
- *
- *  - build some kind of vgacon with it to enable early printk
- *  - move to a separate file
- *  - add a few video driver hooks to keep in sync with display
- *    changes.
- */
-
-void map_boot_text(void)
-{
-        unsigned long base, offset, size;
-        unsigned char *vbase;
-
-        /* By default, we are no longer mapped */
-        boot_text_mapped = 0;
-        if (dispDeviceBase == 0)
-                return;
-        base = ((unsigned long) dispDeviceBase) & 0xFFFFF000UL;
-        offset = ((unsigned long) dispDeviceBase) - base;
-        size = dispDeviceRowBytes * dispDeviceRect[3] + offset
-                + dispDeviceRect[0];
-        vbase = __ioremap(base, size, _PAGE_NO_CACHE);
-        if (vbase == 0)
-                return;
-        logicalDisplayBase = vbase + offset;
-        boot_text_mapped = 1;
-}
-
-int btext_initialize(struct device_node *np)
-{
-        unsigned int width, height, depth, pitch;
-        unsigned long address = 0;
-        u32 *prop;
-
-        prop = (u32 *)get_property(np, "width", NULL);
-        if (prop == NULL)
-                return -EINVAL;
-        width = *prop;
-        prop = (u32 *)get_property(np, "height", NULL);
-        if (prop == NULL)
-                return -EINVAL;
-        height = *prop;
-        prop = (u32 *)get_property(np, "depth", NULL);
-        if (prop == NULL)
-                return -EINVAL;
-        depth = *prop;
-        pitch = width * ((depth + 7) / 8);
-        prop = (u32 *)get_property(np, "linebytes", NULL);
-        if (prop)
-                pitch = *prop;
-        if (pitch == 1)
-                pitch = 0x1000;
-        prop = (u32 *)get_property(np, "address", NULL);
-        if (prop)
-                address = *prop;
-
-        /* FIXME: Add support for PCI reg properties */
-
-        if (address == 0)
-                return -EINVAL;
-
-        g_loc_X = 0;
-        g_loc_Y = 0;
-        g_max_loc_X = width / 8;
-        g_max_loc_Y = height / 16;
-        logicalDisplayBase = (unsigned char *)address;
-        dispDeviceBase = (unsigned char *)address;
-        dispDeviceRowBytes = pitch;
-        dispDeviceDepth = depth;
-        dispDeviceRect[0] = dispDeviceRect[1] = 0;
-        dispDeviceRect[2] = width;
-        dispDeviceRect[3] = height;
-
-        map_boot_text();
-
-        return 0;
-}
-
-static void btext_putc(unsigned char c)
-{
-        btext_drawchar(c);
-}
-
-void __init init_boot_display(void)
-{
-        char *name;
-        struct device_node *np = NULL; 
-        int rc = -ENODEV;
-
-        printk("trying to initialize btext ...\n");
-
-        name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
-        if (name != NULL) {
-                np = of_find_node_by_path(name);
-                if (np != NULL) {
-                        if (strcmp(np->type, "display") != 0) {
-                                printk("boot stdout isn't a display !\n");
-                                of_node_put(np);
-                                np = NULL;
-                        }
-                }
-        }
-        if (np)
-                rc = btext_initialize(np);
-        if (rc) {
-                for (np = NULL; (np = of_find_node_by_type(np, "display"));) {
-                        if (get_property(np, "linux,opened", NULL)) {
-                                printk("trying %s ...\n", np->full_name);
-                                rc = btext_initialize(np);
-                                printk("result: %d\n", rc);
-                        }
-                        if (rc == 0)
-                                break;
-                }
-        }
-        if (rc == 0 && udbg_putc == NULL)
-                udbg_putc = btext_putc;
-}
-
-
-/* Calc the base address of a given point (x,y) */
-static unsigned char * calc_base(int x, int y)
-{
-        unsigned char *base;
-
-        base = logicalDisplayBase;
-        if (base == 0)
-                base = dispDeviceBase;
-        base += (x + dispDeviceRect[0]) * (dispDeviceDepth >> 3);
-        base += (y + dispDeviceRect[1]) * dispDeviceRowBytes;
-        return base;
-}
-
-/* Adjust the display to a new resolution */
-void btext_update_display(unsigned long phys, int width, int height,
-                          int depth, int pitch)
-{
-        if (dispDeviceBase == 0)
-                return;
-
-        /* check it's the same frame buffer (within 256MB) */
-        if ((phys ^ (unsigned long)dispDeviceBase) & 0xf0000000)
-                return;
-
-        dispDeviceBase = (__u8 *) phys;
-        dispDeviceRect[0] = 0;
-        dispDeviceRect[1] = 0;
-        dispDeviceRect[2] = width;
-        dispDeviceRect[3] = height;
-        dispDeviceDepth = depth;
-        dispDeviceRowBytes = pitch;
-        if (boot_text_mapped) {
-                iounmap(logicalDisplayBase);
-                boot_text_mapped = 0;
-        }
-        map_boot_text();
-        g_loc_X = 0;
-        g_loc_Y = 0;
-        g_max_loc_X = width / 8;
-        g_max_loc_Y = height / 16;
-}
-
-void btext_clearscreen(void)
-{
-        unsigned long *base     = (unsigned long *)calc_base(0, 0);
-        unsigned long width     = ((dispDeviceRect[2] - dispDeviceRect[0]) *
-                                        (dispDeviceDepth >> 3)) >> 3;
-        int i,j;
-
-        for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1]); i++)
-        {
-                unsigned long *ptr = base;
-                for(j=width; j; --j)
-                        *(ptr++) = 0;
-                base += (dispDeviceRowBytes >> 3);
-        }
-}
-
-#ifndef NO_SCROLL
-static void scrollscreen(void)
-{
-        unsigned long *src      = (unsigned long *)calc_base(0,16);
-        unsigned long *dst      = (unsigned long *)calc_base(0,0);
-        unsigned long width     = ((dispDeviceRect[2] - dispDeviceRect[0]) *
-                                   (dispDeviceDepth >> 3)) >> 3;
-        int i,j;
-
-        for (i=0; i<(dispDeviceRect[3] - dispDeviceRect[1] - 16); i++)
-        {
-                unsigned long *src_ptr = src;
-                unsigned long *dst_ptr = dst;
-                for(j=width; j; --j)
-                        *(dst_ptr++) = *(src_ptr++);
-                src += (dispDeviceRowBytes >> 3);
-                dst += (dispDeviceRowBytes >> 3);
-        }
-        for (i=0; i<16; i++)
-        {
-                unsigned long *dst_ptr = dst;
-                for(j=width; j; --j)
-                        *(dst_ptr++) = 0;
-                dst += (dispDeviceRowBytes >> 3);
-        }
-}
-#endif /* ndef NO_SCROLL */
-
-void btext_drawchar(char c)
-{
-        int cline = 0;
-#ifdef NO_SCROLL
-        int x;
-#endif
-        if (!boot_text_mapped)
-                return;
-
-        switch (c) {
-        case '\b':
-                if (g_loc_X > 0)
-                        --g_loc_X;
-                break;
-        case '\t':
-                g_loc_X = (g_loc_X & -8) + 8;
-                break;
-        case '\r':
-                g_loc_X = 0;
-                break;
-        case '\n':
-                g_loc_X = 0;
-                g_loc_Y++;
-                cline = 1;
-                break;
-        default:
-                draw_byte(c, g_loc_X++, g_loc_Y);
-        }
-        if (g_loc_X >= g_max_loc_X) {
-                g_loc_X = 0;
-                g_loc_Y++;
-                cline = 1;
-        }
-#ifndef NO_SCROLL
-        while (g_loc_Y >= g_max_loc_Y) {
-                scrollscreen();
-                g_loc_Y--;
-        }
-#else
-        /* wrap around from bottom to top of screen so we don't
-           waste time scrolling each line.  -- paulus. */
-        if (g_loc_Y >= g_max_loc_Y)
-                g_loc_Y = 0;
-        if (cline) {
-                for (x = 0; x < g_max_loc_X; ++x)
-                        draw_byte(' ', x, g_loc_Y);
-        }
-#endif
-}
-
-void btext_drawstring(const char *c)
-{
-        if (!boot_text_mapped)
-                return;
-        while (*c)
-                btext_drawchar(*c++);
-}
-
-void btext_drawhex(unsigned long v)
-{
-        char *hex_table = "0123456789abcdef";
-
-        if (!boot_text_mapped)
-                return;
-        btext_drawchar(hex_table[(v >> 60) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 56) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 52) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 48) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 44) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 40) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 36) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 32) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 28) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 24) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 20) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 16) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >> 12) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >>  8) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >>  4) & 0x0000000FUL]);
-        btext_drawchar(hex_table[(v >>  0) & 0x0000000FUL]);
-        btext_drawchar(' ');
-}
-
-static void draw_byte(unsigned char c, long locX, long locY)
-{
-        unsigned char *base     = calc_base(locX << 3, locY << 4);
-        unsigned char *font     = &vga_font[((unsigned int)c) * 16];
-        int rb                  = dispDeviceRowBytes;
-
-        switch(dispDeviceDepth) {
-        case 24:
-        case 32:
-                draw_byte_32(font, (unsigned int *)base, rb);
-                break;
-        case 15:
-        case 16:
-                draw_byte_16(font, (unsigned int *)base, rb);
-                break;
-        case 8:
-                draw_byte_8(font, (unsigned int *)base, rb);
-                break;
-        }
-}
-
-static unsigned int expand_bits_8[16] = {
-        0x00000000,
-        0x000000ff,
-        0x0000ff00,
-        0x0000ffff,
-        0x00ff0000,
-        0x00ff00ff,
-        0x00ffff00,
-        0x00ffffff,
-        0xff000000,
-        0xff0000ff,
-        0xff00ff00,
-        0xff00ffff,
-        0xffff0000,
-        0xffff00ff,
-        0xffffff00,
-        0xffffffff
-};
-
-static unsigned int expand_bits_16[4] = {
-        0x00000000,
-        0x0000ffff,
-        0xffff0000,
-        0xffffffff
-};
-
-
-static void draw_byte_32(unsigned char *font, unsigned int *base, int rb)
-{
-        int l, bits;
-        int fg = 0xFFFFFFFFUL;
-        int bg = 0x00000000UL;
-
-        for (l = 0; l < 16; ++l)
-        {
-                bits = *font++;
-                base[0] = (-(bits >> 7) & fg) ^ bg;
-                base[1] = (-((bits >> 6) & 1) & fg) ^ bg;
-                base[2] = (-((bits >> 5) & 1) & fg) ^ bg;
-                base[3] = (-((bits >> 4) & 1) & fg) ^ bg;
-                base[4] = (-((bits >> 3) & 1) & fg) ^ bg;
-                base[5] = (-((bits >> 2) & 1) & fg) ^ bg;
-                base[6] = (-((bits >> 1) & 1) & fg) ^ bg;
-                base[7] = (-(bits & 1) & fg) ^ bg;
-                base = (unsigned int *) ((char *)base + rb);
-        }
-}
-
-static void draw_byte_16(unsigned char *font, unsigned int *base, int rb)
-{
-        int l, bits;
-        int fg = 0xFFFFFFFFUL;
-        int bg = 0x00000000UL;
-        unsigned int *eb = (int *)expand_bits_16;
-
-        for (l = 0; l < 16; ++l)
-        {
-                bits = *font++;
-                base[0] = (eb[bits >> 6] & fg) ^ bg;
-                base[1] = (eb[(bits >> 4) & 3] & fg) ^ bg;
-                base[2] = (eb[(bits >> 2) & 3] & fg) ^ bg;
-                base[3] = (eb[bits & 3] & fg) ^ bg;
-                base = (unsigned int *) ((char *)base + rb);
-        }
-}
-
-static void draw_byte_8(unsigned char *font, unsigned int *base, int rb)
-{
-        int l, bits;
-        int fg = 0x0F0F0F0FUL;
-        int bg = 0x00000000UL;
-        unsigned int *eb = (int *)expand_bits_8;
-
-        for (l = 0; l < 16; ++l)
-        {
-                bits = *font++;
-                base[0] = (eb[bits >> 4] & fg) ^ bg;
-                base[1] = (eb[bits & 0xf] & fg) ^ bg;
-                base = (unsigned int *) ((char *)base + rb);
-        }
-}
-
-static unsigned char vga_font[cmapsz] = {
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x81, 0xa5, 0x81, 0x81, 0xbd,
-0x99, 0x81, 0x81, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xff,
-0xdb, 0xff, 0xff, 0xc3, 0xe7, 0xff, 0xff, 0x7e, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x6c, 0xfe, 0xfe, 0xfe, 0xfe, 0x7c, 0x38, 0x10,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x7c, 0xfe,
-0x7c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
-0x3c, 0x3c, 0xe7, 0xe7, 0xe7, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0x7e, 0x18, 0x18, 0x3c,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
-0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0x42, 0x42, 0x66, 0x3c, 0x00,
-0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0x99, 0xbd,
-0xbd, 0x99, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x1e, 0x0e,
-0x1a, 0x32, 0x78, 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x3c, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x7e, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x33, 0x3f, 0x30, 0x30, 0x30,
-0x30, 0x70, 0xf0, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0x63,
-0x7f, 0x63, 0x63, 0x63, 0x63, 0x67, 0xe7, 0xe6, 0xc0, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x18, 0x18, 0xdb, 0x3c, 0xe7, 0x3c, 0xdb, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfe, 0xf8,
-0xf0, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x06, 0x0e,
-0x1e, 0x3e, 0xfe, 0x3e, 0x1e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
-0x66, 0x00, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xdb,
-0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x7c, 0xc6, 0x60, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x0c, 0xc6,
-0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0xfe, 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c,
-0x7e, 0x18, 0x18, 0x18, 0x7e, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x18, 0x3c, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-0x18, 0x7e, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x18, 0x0c, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0x60, 0x30, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0,
-0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x24, 0x66, 0xff, 0x66, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x38, 0x7c, 0x7c, 0xfe, 0xfe, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x7c, 0x7c,
-0x38, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x18, 0x3c, 0x3c, 0x3c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x66, 0x66, 0x24, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c,
-0x6c, 0xfe, 0x6c, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
-0x18, 0x18, 0x7c, 0xc6, 0xc2, 0xc0, 0x7c, 0x06, 0x06, 0x86, 0xc6, 0x7c,
-0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc2, 0xc6, 0x0c, 0x18,
-0x30, 0x60, 0xc6, 0x86, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
-0x6c, 0x38, 0x76, 0xdc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x30, 0x30, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30,
-0x30, 0x30, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x18,
-0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e,
-0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x02, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xce, 0xde, 0xf6, 0xe6, 0xc6, 0xc6, 0x7c,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x38, 0x78, 0x18, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
-0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xc6, 0xfe, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x7c, 0xc6, 0x06, 0x06, 0x3c, 0x06, 0x06, 0x06, 0xc6, 0x7c,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x1c, 0x3c, 0x6c, 0xcc, 0xfe,
-0x0c, 0x0c, 0x0c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc0,
-0xc0, 0xc0, 0xfc, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x38, 0x60, 0xc0, 0xc0, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0x06, 0x06, 0x0c, 0x18,
-0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
-0xc6, 0xc6, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x06, 0x06, 0x0c, 0x78,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00,
-0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x18, 0x18, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x06,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00,
-0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60,
-0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x0c, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xde, 0xde,
-0xde, 0xdc, 0xc0, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38,
-0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0x66, 0xfc,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66, 0xc2, 0xc0, 0xc0, 0xc0,
-0xc0, 0xc2, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x6c,
-0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x6c, 0xf8, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x60, 0x62, 0x66, 0xfe,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68,
-0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66,
-0xc2, 0xc0, 0xc0, 0xde, 0xc6, 0xc6, 0x66, 0x3a, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x0c,
-0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xe6, 0x66, 0x66, 0x6c, 0x78, 0x78, 0x6c, 0x66, 0x66, 0xe6,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x60, 0x60, 0x60, 0x60, 0x60,
-0x60, 0x62, 0x66, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xe7,
-0xff, 0xff, 0xdb, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xc6, 0xe6, 0xf6, 0xfe, 0xde, 0xce, 0xc6, 0xc6, 0xc6, 0xc6,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
-0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x66,
-0x66, 0x66, 0x7c, 0x60, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xde, 0x7c,
-0x0c, 0x0e, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x6c,
-0x66, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
-0xc6, 0x60, 0x38, 0x0c, 0x06, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xff, 0xdb, 0x99, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
-0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3,
-0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x66, 0x3c, 0x18, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xdb, 0xdb, 0xff, 0x66, 0x66,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3, 0x66, 0x3c, 0x18, 0x18,
-0x3c, 0x66, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0xc3,
-0xc3, 0x66, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0xff, 0xc3, 0x86, 0x0c, 0x18, 0x30, 0x60, 0xc1, 0xc3, 0xff,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x30, 0x30, 0x30, 0x30, 0x30,
-0x30, 0x30, 0x30, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
-0xc0, 0xe0, 0x70, 0x38, 0x1c, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c,
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-0x18, 0x1f, 0x18, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x18, 0x1f, 0x18, 0x18, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f,
-0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
-0x36, 0x36, 0x36, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
-0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0x18, 0xff, 0x18, 0x18, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff,
-0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf0, 0xf0, 0xf0,
-0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
-0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
-0x0f, 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x76, 0xdc, 0xd8, 0xd8, 0xd8, 0xdc, 0x76, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xd8, 0xcc, 0xc6, 0xc6, 0xc6, 0xcc,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0,
-0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0xfe, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0xfe, 0xc6, 0x60, 0x30, 0x18, 0x30, 0x60, 0xc6, 0xfe,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xd8, 0xd8,
-0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x66, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xc0, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x18, 0x3c, 0x66, 0x66,
-0x66, 0x3c, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38,
-0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0x6c, 0x38, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x6c, 0x6c, 0x6c, 0x6c, 0xee,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x30, 0x18, 0x0c, 0x3e, 0x66,
-0x66, 0x66, 0x66, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x7e, 0xdb, 0xdb, 0xdb, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x03, 0x06, 0x7e, 0xdb, 0xdb, 0xf3, 0x7e, 0x60, 0xc0,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x30, 0x60, 0x60, 0x7c, 0x60,
-0x60, 0x60, 0x30, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c,
-0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18,
-0x18, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
-0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x00, 0x7e,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x1b, 0x1b, 0x1b, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x7e, 0x00, 0x18, 0x18, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00,
-0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x6c,
-0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0c, 0x0c,
-0x0c, 0x0c, 0x0c, 0xec, 0x6c, 0x6c, 0x3c, 0x1c, 0x00, 0x00, 0x00, 0x00,
-0x00, 0xd8, 0x6c, 0x6c, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0xd8, 0x30, 0x60, 0xc8, 0xf8, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-0x00, 0x00, 0x00, 0x00,
-};
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
deleted file mode 100644
index 1c869ea72d28..000000000000
--- a/arch/ppc64/kernel/head.S
+++ /dev/null
@@ -1,2007 +0,0 @@
-/*
- *  arch/ppc64/kernel/head.S
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
- *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
- *  Adapted for Power Macintosh by Paul Mackerras.
- *  Low-level exception handlers and MMU support
- *  rewritten by Paul Mackerras.
- *    Copyright (C) 1996 Paul Mackerras.
- *
- *  Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and
- *    Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com
- *
- *  This file contains the low-level support and setup for the
- *  PowerPC-64 platform, including trap and interrupt dispatch.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/threads.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/mmu.h>
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/bug.h>
-#include <asm/cputable.h>
-#include <asm/setup.h>
-#include <asm/hvcall.h>
-#include <asm/iseries/lpar_map.h>
-#include <asm/thread_info.h>
-
-#ifdef CONFIG_PPC_ISERIES
-#define DO_SOFT_DISABLE
-#endif
-
-/*
- * We layout physical memory as follows:
- * 0x0000 - 0x00ff : Secondary processor spin code
- * 0x0100 - 0x2fff : pSeries Interrupt prologs
- * 0x3000 - 0x5fff : interrupt support, iSeries and common interrupt prologs
- * 0x6000 - 0x6fff : Initial (CPU0) segment table
- * 0x7000 - 0x7fff : FWNMI data area
- * 0x8000 -        : Early init and support code
- */
-
-/*
- *   SPRG Usage
- *
- *   Register   Definition
- *
- *   SPRG0      reserved for hypervisor
- *   SPRG1      temp - used to save gpr
- *   SPRG2      temp - used to save gpr
- *   SPRG3      virt addr of paca
- */
-
-/*
- * Entering into this code we make the following assumptions:
- *  For pSeries:
- *   1. The MMU is off & open firmware is running in real mode.
- *   2. The kernel is entered at __start
- *
- *  For iSeries:
- *   1. The MMU is on (as it always is for iSeries)
- *   2. The kernel is entered at system_reset_iSeries
- */
-
-        .text
-        .globl  _stext
-_stext:
-#ifdef CONFIG_PPC_MULTIPLATFORM
-_GLOBAL(__start)
-        /* NOP this out unconditionally */
-BEGIN_FTR_SECTION
-        b       .__start_initialization_multiplatform
-END_FTR_SECTION(0, 1)
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
-        /* Catch branch to 0 in real mode */
-        trap
-
-#ifdef CONFIG_PPC_ISERIES
-        /*
-         * At offset 0x20, there is a pointer to iSeries LPAR data.
-         * This is required by the hypervisor
-         */
-        . = 0x20
-        .llong hvReleaseData-KERNELBASE
-
-        /*
-         * At offset 0x28 and 0x30 are offsets to the mschunks_map
-         * array (used by the iSeries LPAR debugger to do translation
-         * between physical addresses and absolute addresses) and
-         * to the pidhash table (also used by the debugger)
-         */
-        .llong mschunks_map-KERNELBASE
-        .llong 0        /* pidhash-KERNELBASE SFRXXX */
-
-        /* Offset 0x38 - Pointer to start of embedded System.map */
-        .globl  embedded_sysmap_start
-embedded_sysmap_start:
-        .llong  0
-        /* Offset 0x40 - Pointer to end of embedded System.map */
-        .globl  embedded_sysmap_end
-embedded_sysmap_end:
-        .llong  0
-
-#endif /* CONFIG_PPC_ISERIES */
-
-        /* Secondary processors spin on this value until it goes to 1. */
-        .globl  __secondary_hold_spinloop
-__secondary_hold_spinloop:
-        .llong  0x0
-
-        /* Secondary processors write this value with their cpu # */
-        /* after they enter the spin loop immediately below.      */
-        .globl  __secondary_hold_acknowledge
-__secondary_hold_acknowledge:
-        .llong  0x0
-
-        . = 0x60
-/*
- * The following code is used on pSeries to hold secondary processors
- * in a spin loop after they have been freed from OpenFirmware, but
- * before the bulk of the kernel has been relocated.  This code
- * is relocated to physical address 0x60 before prom_init is run.
- * All of it must fit below the first exception vector at 0x100.
- */
-_GLOBAL(__secondary_hold)
-        mfmsr   r24
-        ori     r24,r24,MSR_RI
-        mtmsrd  r24                     /* RI on */
-
-        /* Grab our linux cpu number */
-        mr      r24,r3
-
-        /* Tell the master cpu we're here */
-        /* Relocation is off & we are located at an address less */
-        /* than 0x100, so only need to grab low order offset.    */
-        std     r24,__secondary_hold_acknowledge@l(0)
-        sync
-
-        /* All secondary cpus wait here until told to start. */
-100:    ld      r4,__secondary_hold_spinloop@l(0)
-        cmpdi   0,r4,1
-        bne     100b
-
-#ifdef CONFIG_HMT
-        b       .hmt_init
-#else
-#ifdef CONFIG_SMP
-        mr      r3,r24
-        b       .pSeries_secondary_smp_init
-#else
-        BUG_OPCODE
-#endif
-#endif
-
-/* This value is used to mark exception frames on the stack. */
-        .section ".toc","aw"
-exception_marker:
-        .tc     ID_72656773_68657265[TC],0x7265677368657265
-        .text
-
-/*
- * The following macros define the code that appears as
- * the prologue to each of the exception handlers.  They
- * are split into two parts to allow a single kernel binary
- * to be used for pSeries and iSeries.
- * LOL.  One day... - paulus
- */
-
-/*
- * We make as much of the exception code common between native
- * exception handlers (including pSeries LPAR) and iSeries LPAR
- * implementations as possible.
- */
-
-/*
- * This is the start of the interrupt handlers for pSeries
- * This code runs with relocation off.
- */
-#define EX_R9           0
-#define EX_R10          8
-#define EX_R11          16
-#define EX_R12          24
-#define EX_R13          32
-#define EX_SRR0         40
-#define EX_DAR          48
-#define EX_DSISR        56
-#define EX_CCR          60
-#define EX_R3           64
-#define EX_LR           72
-
-#define EXCEPTION_PROLOG_PSERIES(area, label)                           \
-        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
-        std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
-        std     r10,area+EX_R10(r13);                                   \
-        std     r11,area+EX_R11(r13);                                   \
-        std     r12,area+EX_R12(r13);                                   \
-        mfspr   r9,SPRN_SPRG1;                                          \
-        std     r9,area+EX_R13(r13);                                    \
-        mfcr    r9;                                                     \
-        clrrdi  r12,r13,32;             /* get high part of &label */   \
-        mfmsr   r10;                                                    \
-        mfspr   r11,SPRN_SRR0;          /* save SRR0 */                 \
-        ori     r12,r12,(label)@l;      /* virt addr of handler */      \
-        ori     r10,r10,MSR_IR|MSR_DR|MSR_RI;                           \
-        mtspr   SPRN_SRR0,r12;                                          \
-        mfspr   r12,SPRN_SRR1;          /* and SRR1 */                  \
-        mtspr   SPRN_SRR1,r10;                                          \
-        rfid;                                                           \
-        b       .       /* prevent speculative execution */
-
-/*
- * This is the start of the interrupt handlers for iSeries
- * This code runs with relocation on.
- */
-#define EXCEPTION_PROLOG_ISERIES_1(area)                                \
-        mfspr   r13,SPRN_SPRG3;         /* get paca address into r13 */ \
-        std     r9,area+EX_R9(r13);     /* save r9 - r12 */             \
-        std     r10,area+EX_R10(r13);                                   \
-        std     r11,area+EX_R11(r13);                                   \
-        std     r12,area+EX_R12(r13);                                   \
-        mfspr   r9,SPRN_SPRG1;                                          \
-        std     r9,area+EX_R13(r13);                                    \
-        mfcr    r9
-
-#define EXCEPTION_PROLOG_ISERIES_2                                      \
-        mfmsr   r10;                                                    \
-        ld      r11,PACALPPACA+LPPACASRR0(r13);                         \
-        ld      r12,PACALPPACA+LPPACASRR1(r13);                         \
-        ori     r10,r10,MSR_RI;                                         \
-        mtmsrd  r10,1
-
-/*
- * The common exception prolog is used for all except a few exceptions
- * such as a segment miss on a kernel address.  We have to be prepared
- * to take another exception from the point where we first touch the
- * kernel stack onwards.
- *
- * On entry r13 points to the paca, r9-r13 are saved in the paca,
- * r9 contains the saved CR, r11 and r12 contain the saved SRR0 and
- * SRR1, and relocation is on.
- */
-#define EXCEPTION_PROLOG_COMMON(n, area)                                   \
-        andi.   r10,r12,MSR_PR;         /* See if coming from user      */ \
-        mr      r10,r1;                 /* Save r1                      */ \
-        subi    r1,r1,INT_FRAME_SIZE;   /* alloc frame on kernel stack  */ \
-        beq-    1f;                                                        \
-        ld      r1,PACAKSAVE(r13);      /* kernel stack to use          */ \
-1:      cmpdi   cr1,r1,0;               /* check if r1 is in userspace  */ \
-        bge-    cr1,bad_stack;          /* abort if it is               */ \
-        std     r9,_CCR(r1);            /* save CR in stackframe        */ \
-        std     r11,_NIP(r1);           /* save SRR0 in stackframe      */ \
-        std     r12,_MSR(r1);           /* save SRR1 in stackframe      */ \
-        std     r10,0(r1);              /* make stack chain pointer     */ \
-        std     r0,GPR0(r1);            /* save r0 in stackframe        */ \
-        std     r10,GPR1(r1);           /* save r1 in stackframe        */ \
-        std     r2,GPR2(r1);            /* save r2 in stackframe        */ \
-        SAVE_4GPRS(3, r1);              /* save r3 - r6 in stackframe   */ \
-        SAVE_2GPRS(7, r1);              /* save r7, r8 in stackframe    */ \
-        ld      r9,area+EX_R9(r13);     /* move r9, r10 to stackframe   */ \
-        ld      r10,area+EX_R10(r13);                                      \
-        std     r9,GPR9(r1);                                               \
-        std     r10,GPR10(r1);                                             \
-        ld      r9,area+EX_R11(r13);    /* move r11 - r13 to stackframe */ \
-        ld      r10,area+EX_R12(r13);                                      \
-        ld      r11,area+EX_R13(r13);                                      \
-        std     r9,GPR11(r1);                                              \
-        std     r10,GPR12(r1);                                             \
-        std     r11,GPR13(r1);                                             \
-        ld      r2,PACATOC(r13);        /* get kernel TOC into r2       */ \
-        mflr    r9;                     /* save LR in stackframe        */ \
-        std     r9,_LINK(r1);                                              \
-        mfctr   r10;                    /* save CTR in stackframe       */ \
-        std     r10,_CTR(r1);                                              \
-        mfspr   r11,SPRN_XER;           /* save XER in stackframe       */ \
-        std     r11,_XER(r1);                                              \
-        li      r9,(n)+1;                                                  \
-        std     r9,_TRAP(r1);           /* set trap number              */ \
-        li      r10,0;                                                     \
-        ld      r11,exception_marker@toc(r2);                              \
-        std     r10,RESULT(r1);         /* clear regs->result           */ \
-        std     r11,STACK_FRAME_OVERHEAD-16(r1); /* mark the frame      */
-
-/*
- * Exception vectors.
- */
-#define STD_EXCEPTION_PSERIES(n, label)                 \
-        . = n;                                          \
-        .globl label##_pSeries;                         \
-label##_pSeries:                                        \
-        HMT_MEDIUM;                                     \
-        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
-        RUNLATCH_ON(r13);                               \
-        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common)
-
-#define STD_EXCEPTION_ISERIES(n, label, area)           \
-        .globl label##_iSeries;                         \
-label##_iSeries:                                        \
-        HMT_MEDIUM;                                     \
-        mtspr   SPRN_SPRG1,r13;         /* save r13 */  \
-        RUNLATCH_ON(r13);                               \
-        EXCEPTION_PROLOG_ISERIES_1(area);               \
-        EXCEPTION_PROLOG_ISERIES_2;                     \
-        b       label##_common
-
-#define MASKABLE_EXCEPTION_ISERIES(n, label)                            \
-        .globl label##_iSeries;                                         \
-label##_iSeries:                                                        \
-        HMT_MEDIUM;                                                     \
-        mtspr   SPRN_SPRG1,r13;         /* save r13 */                  \
-        RUNLATCH_ON(r13);                                               \
-        EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN);                         \
-        lbz     r10,PACAPROCENABLED(r13);                               \
-        cmpwi   0,r10,0;                                                \
-        beq-    label##_iSeries_masked;                                 \
-        EXCEPTION_PROLOG_ISERIES_2;                                     \
-        b       label##_common;                                         \
-
-#ifdef DO_SOFT_DISABLE
-#define DISABLE_INTS                            \
-        lbz     r10,PACAPROCENABLED(r13);       \
-        li      r11,0;                          \
-        std     r10,SOFTE(r1);                  \
-        mfmsr   r10;                            \
-        stb     r11,PACAPROCENABLED(r13);       \
-        ori     r10,r10,MSR_EE;                 \
-        mtmsrd  r10,1
-
-#define ENABLE_INTS                             \
-        lbz     r10,PACAPROCENABLED(r13);       \
-        mfmsr   r11;                            \
-        std     r10,SOFTE(r1);                  \
-        ori     r11,r11,MSR_EE;                 \
-        mtmsrd  r11,1
-
-#else   /* hard enable/disable interrupts */
-#define DISABLE_INTS
-
-#define ENABLE_INTS                             \
-        ld      r12,_MSR(r1);                   \
-        mfmsr   r11;                            \
-        rlwimi  r11,r12,0,MSR_EE;               \
-        mtmsrd  r11,1
-
-#endif
-
-#define STD_EXCEPTION_COMMON(trap, label, hdlr)         \
-        .align  7;                                      \
-        .globl label##_common;                          \
-label##_common:                                         \
-        EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN);      \
-        DISABLE_INTS;                                   \
-        bl      .save_nvgprs;                           \
-        addi    r3,r1,STACK_FRAME_OVERHEAD;             \
-        bl      hdlr;                                   \
-        b       .ret_from_except
-
-#define STD_EXCEPTION_COMMON_LITE(trap, label, hdlr)    \
-        .align  7;                                      \
-        .globl label##_common;                          \
-label##_common:                                         \
-        EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN);      \
-        DISABLE_INTS;                                   \
-        addi    r3,r1,STACK_FRAME_OVERHEAD;             \
-        bl      hdlr;                                   \
-        b       .ret_from_except_lite
-
-/*
- * Start of pSeries system interrupt routines
- */
-        . = 0x100
-        .globl __start_interrupts
-__start_interrupts:
-
-        STD_EXCEPTION_PSERIES(0x100, system_reset)
-
-        . = 0x200
-_machine_check_pSeries:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
-        RUNLATCH_ON(r13)
-        EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
-
-        . = 0x300
-        .globl data_access_pSeries
-data_access_pSeries:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
-BEGIN_FTR_SECTION
-        mtspr   SPRN_SPRG2,r12
-        mfspr   r13,SPRN_DAR
-        mfspr   r12,SPRN_DSISR
-        srdi    r13,r13,60
-        rlwimi  r13,r12,16,0x20
-        mfcr    r12
-        cmpwi   r13,0x2c
-        beq     .do_stab_bolted_pSeries
-        mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
-        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common)
-
-        . = 0x380
-        .globl data_access_slb_pSeries
-data_access_slb_pSeries:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
-        RUNLATCH_ON(r13)
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-        std     r3,PACA_EXSLB+EX_R3(r13)
-        mfspr   r3,SPRN_DAR
-        std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
-        mfcr    r9
-#ifdef __DISABLED__
-        /* Keep that around for when we re-implement dynamic VSIDs */
-        cmpdi   r3,0
-        bge     slb_miss_user_pseries
-#endif /* __DISABLED__ */
-        std     r10,PACA_EXSLB+EX_R10(r13)
-        std     r11,PACA_EXSLB+EX_R11(r13)
-        std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
-        std     r10,PACA_EXSLB+EX_R13(r13)
-        mfspr   r12,SPRN_SRR1           /* and SRR1 */
-        b       .slb_miss_realmode      /* Rel. branch works in real mode */
-
-        STD_EXCEPTION_PSERIES(0x400, instruction_access)
-
-        . = 0x480
-        .globl instruction_access_slb_pSeries
-instruction_access_slb_pSeries:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
-        RUNLATCH_ON(r13)
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-        std     r3,PACA_EXSLB+EX_R3(r13)
-        mfspr   r3,SPRN_SRR0            /* SRR0 is faulting address */
-        std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
-        mfcr    r9
-#ifdef __DISABLED__
-        /* Keep that around for when we re-implement dynamic VSIDs */
-        cmpdi   r3,0
-        bge     slb_miss_user_pseries
-#endif /* __DISABLED__ */
-        std     r10,PACA_EXSLB+EX_R10(r13)
-        std     r11,PACA_EXSLB+EX_R11(r13)
-        std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
-        std     r10,PACA_EXSLB+EX_R13(r13)
-        mfspr   r12,SPRN_SRR1           /* and SRR1 */
-        b       .slb_miss_realmode      /* Rel. branch works in real mode */
-
-        STD_EXCEPTION_PSERIES(0x500, hardware_interrupt)
-        STD_EXCEPTION_PSERIES(0x600, alignment)
-        STD_EXCEPTION_PSERIES(0x700, program_check)
-        STD_EXCEPTION_PSERIES(0x800, fp_unavailable)
-        STD_EXCEPTION_PSERIES(0x900, decrementer)
-        STD_EXCEPTION_PSERIES(0xa00, trap_0a)
-        STD_EXCEPTION_PSERIES(0xb00, trap_0b)
-
-        . = 0xc00
-        .globl  system_call_pSeries
-system_call_pSeries:
-        HMT_MEDIUM
-        RUNLATCH_ON(r9)
-        mr      r9,r13
-        mfmsr   r10
-        mfspr   r13,SPRN_SPRG3
-        mfspr   r11,SPRN_SRR0
-        clrrdi  r12,r13,32
-        oris    r12,r12,system_call_common@h
-        ori     r12,r12,system_call_common@l
-        mtspr   SPRN_SRR0,r12
-        ori     r10,r10,MSR_IR|MSR_DR|MSR_RI
-        mfspr   r12,SPRN_SRR1
-        mtspr   SPRN_SRR1,r10
-        rfid
-        b       .       /* prevent speculative execution */
-
-        STD_EXCEPTION_PSERIES(0xd00, single_step)
-        STD_EXCEPTION_PSERIES(0xe00, trap_0e)
-
-        /* We need to deal with the Altivec unavailable exception
-         * here which is at 0xf20, thus in the middle of the
-         * prolog code of the PerformanceMonitor one. A little
-         * trickery is thus necessary
-         */
-        . = 0xf00
-        b       performance_monitor_pSeries
-
-        STD_EXCEPTION_PSERIES(0xf20, altivec_unavailable)
-
-        STD_EXCEPTION_PSERIES(0x1300, instruction_breakpoint)
-        STD_EXCEPTION_PSERIES(0x1700, altivec_assist)
-
-        . = 0x3000
-
-/*** pSeries interrupt support ***/
-
-        /* moved from 0xf00 */
-        STD_EXCEPTION_PSERIES(., performance_monitor)
-
-        .align  7
-_GLOBAL(do_stab_bolted_pSeries)
-        mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
-        EXCEPTION_PROLOG_PSERIES(PACA_EXSLB, .do_stab_bolted)
-
-/*
- * We have some room here  we use that to put
- * the peries slb miss user trampoline code so it's reasonably
- * away from slb_miss_user_common to avoid problems with rfid
- *
- * This is used for when the SLB miss handler has to go virtual,
- * which doesn't happen for now anymore but will once we re-implement
- * dynamic VSIDs for shared page tables
- */
-#ifdef __DISABLED__
-slb_miss_user_pseries:
-        std     r10,PACA_EXGEN+EX_R10(r13)
-        std     r11,PACA_EXGEN+EX_R11(r13)
-        std     r12,PACA_EXGEN+EX_R12(r13)
-        mfspr   r10,SPRG1
-        ld      r11,PACA_EXSLB+EX_R9(r13)
-        ld      r12,PACA_EXSLB+EX_R3(r13)
-        std     r10,PACA_EXGEN+EX_R13(r13)
-        std     r11,PACA_EXGEN+EX_R9(r13)
-        std     r12,PACA_EXGEN+EX_R3(r13)
-        clrrdi  r12,r13,32
-        mfmsr   r10
-        mfspr   r11,SRR0                        /* save SRR0 */
-        ori     r12,r12,slb_miss_user_common@l  /* virt addr of handler */
-        ori     r10,r10,MSR_IR|MSR_DR|MSR_RI
-        mtspr   SRR0,r12
-        mfspr   r12,SRR1                        /* and SRR1 */
-        mtspr   SRR1,r10
-        rfid
-        b       .                               /* prevent spec. execution */
-#endif /* __DISABLED__ */
-
-/*
- * Vectors for the FWNMI option.  Share common code.
- */
-        .globl system_reset_fwnmi
-system_reset_fwnmi:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
-        RUNLATCH_ON(r13)
-        EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
-
-        .globl machine_check_fwnmi
-machine_check_fwnmi:
-        HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
-        RUNLATCH_ON(r13)
-        EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
-
-#ifdef CONFIG_PPC_ISERIES
-/***  ISeries-LPAR interrupt handlers ***/
-
-        STD_EXCEPTION_ISERIES(0x200, machine_check, PACA_EXMC)
-
-        .globl data_access_iSeries
-data_access_iSeries:
-        mtspr   SPRN_SPRG1,r13
-BEGIN_FTR_SECTION
-        mtspr   SPRN_SPRG2,r12
-        mfspr   r13,SPRN_DAR
-        mfspr   r12,SPRN_DSISR
-        srdi    r13,r13,60
-        rlwimi  r13,r12,16,0x20
-        mfcr    r12
-        cmpwi   r13,0x2c
-        beq     .do_stab_bolted_iSeries
-        mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
-        EXCEPTION_PROLOG_ISERIES_1(PACA_EXGEN)
-        EXCEPTION_PROLOG_ISERIES_2
-        b       data_access_common
-
-.do_stab_bolted_iSeries:
-        mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
-        EXCEPTION_PROLOG_ISERIES_1(PACA_EXSLB)
-        EXCEPTION_PROLOG_ISERIES_2
-        b       .do_stab_bolted
-
-        .globl  data_access_slb_iSeries
-data_access_slb_iSeries:
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-        std     r3,PACA_EXSLB+EX_R3(r13)
-        mfspr   r3,SPRN_DAR
-        std     r9,PACA_EXSLB+EX_R9(r13)
-        mfcr    r9
-#ifdef __DISABLED__
-        cmpdi   r3,0
-        bge     slb_miss_user_iseries
-#endif
-        std     r10,PACA_EXSLB+EX_R10(r13)
-        std     r11,PACA_EXSLB+EX_R11(r13)
-        std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
-        std     r10,PACA_EXSLB+EX_R13(r13)
-        ld      r12,PACALPPACA+LPPACASRR1(r13);
-        b       .slb_miss_realmode
-
-        STD_EXCEPTION_ISERIES(0x400, instruction_access, PACA_EXGEN)
-
-        .globl  instruction_access_slb_iSeries
-instruction_access_slb_iSeries:
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
-        std     r3,PACA_EXSLB+EX_R3(r13)
-        ld      r3,PACALPPACA+LPPACASRR0(r13)   /* get SRR0 value */
-        std     r9,PACA_EXSLB+EX_R9(r13)
-        mfcr    r9
-#ifdef __DISABLED__
-        cmpdi   r3,0
-        bge     .slb_miss_user_iseries
-#endif
-        std     r10,PACA_EXSLB+EX_R10(r13)
-        std     r11,PACA_EXSLB+EX_R11(r13)
-        std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
-        std     r10,PACA_EXSLB+EX_R13(r13)
-        ld      r12,PACALPPACA+LPPACASRR1(r13);
-        b       .slb_miss_realmode
-
-#ifdef __DISABLED__
-slb_miss_user_iseries:
-        std     r10,PACA_EXGEN+EX_R10(r13)
-        std     r11,PACA_EXGEN+EX_R11(r13)
-        std     r12,PACA_EXGEN+EX_R12(r13)
-        mfspr   r10,SPRG1
-        ld      r11,PACA_EXSLB+EX_R9(r13)
-        ld      r12,PACA_EXSLB+EX_R3(r13)
-        std     r10,PACA_EXGEN+EX_R13(r13)
-        std     r11,PACA_EXGEN+EX_R9(r13)
-        std     r12,PACA_EXGEN+EX_R3(r13)
-        EXCEPTION_PROLOG_ISERIES_2
-        b       slb_miss_user_common
-#endif
-
-        MASKABLE_EXCEPTION_ISERIES(0x500, hardware_interrupt)
-        STD_EXCEPTION_ISERIES(0x600, alignment, PACA_EXGEN)
-        STD_EXCEPTION_ISERIES(0x700, program_check, PACA_EXGEN)
-        STD_EXCEPTION_ISERIES(0x800, fp_unavailable, PACA_EXGEN)
-        MASKABLE_EXCEPTION_ISERIES(0x900, decrementer)
-        STD_EXCEPTION_ISERIES(0xa00, trap_0a, PACA_EXGEN)
-        STD_EXCEPTION_ISERIES(0xb00, trap_0b, PACA_EXGEN)
-
-        .globl  system_call_iSeries
-system_call_iSeries:
-        mr      r9,r13
-        mfspr   r13,SPRN_SPRG3
-        EXCEPTION_PROLOG_ISERIES_2
-        b       system_call_common
-
-        STD_EXCEPTION_ISERIES( 0xd00, single_step, PACA_EXGEN)
-        STD_EXCEPTION_ISERIES( 0xe00, trap_0e, PACA_EXGEN)
-        STD_EXCEPTION_ISERIES( 0xf00, performance_monitor, PACA_EXGEN)
-
-        .globl system_reset_iSeries
-system_reset_iSeries:
-        mfspr   r13,SPRN_SPRG3          /* Get paca address */
-        mfmsr   r24
-        ori     r24,r24,MSR_RI
-        mtmsrd  r24                     /* RI on */
-        lhz     r24,PACAPACAINDEX(r13)  /* Get processor # */
-        cmpwi   0,r24,0                 /* Are we processor 0? */
-        beq     .__start_initialization_iSeries /* Start up the first processor */
-        mfspr   r4,SPRN_CTRLF
-        li      r5,CTRL_RUNLATCH        /* Turn off the run light */
-        andc    r4,r4,r5
-        mtspr   SPRN_CTRLT,r4
-
-1:
-        HMT_LOW
-#ifdef CONFIG_SMP
-        lbz     r23,PACAPROCSTART(r13)  /* Test if this processor
-                                         * should start */
-        sync
-        LOADADDR(r3,current_set)
-        sldi    r28,r24,3               /* get current_set[cpu#] */
-        ldx     r3,r3,r28
-        addi    r1,r3,THREAD_SIZE
-        subi    r1,r1,STACK_FRAME_OVERHEAD
-
-        cmpwi   0,r23,0
-        beq     iSeries_secondary_smp_loop      /* Loop until told to go */
-        bne     .__secondary_start              /* Loop until told to go */
-iSeries_secondary_smp_loop:
-        /* Let the Hypervisor know we are alive */
-        /* 8002 is a call to HvCallCfg::getLps, a harmless Hypervisor function */
-        lis     r3,0x8002
-        rldicr  r3,r3,32,15             /* r0 = (r3 << 32) & 0xffff000000000000 */
-#else /* CONFIG_SMP */
-        /* Yield the processor.  This is required for non-SMP kernels
-                which are running on multi-threaded machines. */
-        lis     r3,0x8000
-        rldicr  r3,r3,32,15             /* r3 = (r3 << 32) & 0xffff000000000000 */
-        addi    r3,r3,18                /* r3 = 0x8000000000000012 which is "yield" */
-        li      r4,0                    /* "yield timed" */
-        li      r5,-1                   /* "yield forever" */
-#endif /* CONFIG_SMP */
-        li      r0,-1                   /* r0=-1 indicates a Hypervisor call */
-        sc                              /* Invoke the hypervisor via a system call */
-        mfspr   r13,SPRN_SPRG3          /* Put r13 back ???? */
-        b       1b                      /* If SMP not configured, secondaries
-                                         * loop forever */
-
-        .globl decrementer_iSeries_masked
-decrementer_iSeries_masked:
-        li      r11,1
-        stb     r11,PACALPPACA+LPPACADECRINT(r13)
-        lwz     r12,PACADEFAULTDECR(r13)
-        mtspr   SPRN_DEC,r12
-        /* fall through */
-
-        .globl hardware_interrupt_iSeries_masked
-hardware_interrupt_iSeries_masked:
-        mtcrf   0x80,r9         /* Restore regs */
-        ld      r11,PACALPPACA+LPPACASRR0(r13)
-        ld      r12,PACALPPACA+LPPACASRR1(r13)
-        mtspr   SPRN_SRR0,r11
-        mtspr   SPRN_SRR1,r12
-        ld      r9,PACA_EXGEN+EX_R9(r13)
-        ld      r10,PACA_EXGEN+EX_R10(r13)
-        ld      r11,PACA_EXGEN+EX_R11(r13)
-        ld      r12,PACA_EXGEN+EX_R12(r13)
-        ld      r13,PACA_EXGEN+EX_R13(r13)
-        rfid
-        b       .       /* prevent speculative execution */
-#endif /* CONFIG_PPC_ISERIES */
-
-/*** Common interrupt handlers ***/
-
-        STD_EXCEPTION_COMMON(0x100, system_reset, .system_reset_exception)
-
-        /*
-         * Machine check is different because we use a different
-         * save area: PACA_EXMC instead of PACA_EXGEN.
-         */
-        .align  7
-        .globl machine_check_common
-machine_check_common:
-        EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC)
-        DISABLE_INTS
-        bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .machine_check_exception
-        b       .ret_from_except
-
-        STD_EXCEPTION_COMMON_LITE(0x900, decrementer, .timer_interrupt)
-        STD_EXCEPTION_COMMON(0xa00, trap_0a, .unknown_exception)
-        STD_EXCEPTION_COMMON(0xb00, trap_0b, .unknown_exception)
-        STD_EXCEPTION_COMMON(0xd00, single_step, .single_step_exception)
-        STD_EXCEPTION_COMMON(0xe00, trap_0e, .unknown_exception)
-        STD_EXCEPTION_COMMON(0xf00, performance_monitor, .performance_monitor_exception)
-        STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception)
-#ifdef CONFIG_ALTIVEC
-        STD_EXCEPTION_COMMON(0x1700, altivec_assist, .altivec_assist_exception)
-#else
-        STD_EXCEPTION_COMMON(0x1700, altivec_assist, .unknown_exception)
-#endif
-
-/*
- * Here we have detected that the kernel stack pointer is bad.
- * R9 contains the saved CR, r13 points to the paca,
- * r10 contains the (bad) kernel stack pointer,
- * r11 and r12 contain the saved SRR0 and SRR1.
- * We switch to using an emergency stack, save the registers there,
- * and call kernel_bad_stack(), which panics.
- */
-bad_stack:
-        ld      r1,PACAEMERGSP(r13)
-        subi    r1,r1,64+INT_FRAME_SIZE
-        std     r9,_CCR(r1)
-        std     r10,GPR1(r1)
-        std     r11,_NIP(r1)
-        std     r12,_MSR(r1)
-        mfspr   r11,SPRN_DAR
-        mfspr   r12,SPRN_DSISR
-        std     r11,_DAR(r1)
-        std     r12,_DSISR(r1)
-        mflr    r10
-        mfctr   r11
-        mfxer   r12
-        std     r10,_LINK(r1)
-        std     r11,_CTR(r1)
-        std     r12,_XER(r1)
-        SAVE_GPR(0,r1)
-        SAVE_GPR(2,r1)
-        SAVE_4GPRS(3,r1)
-        SAVE_2GPRS(7,r1)
-        SAVE_10GPRS(12,r1)
-        SAVE_10GPRS(22,r1)
-        addi    r11,r1,INT_FRAME_SIZE
-        std     r11,0(r1)
-        li      r12,0
-        std     r12,0(r11)
-        ld      r2,PACATOC(r13)
-1:      addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .kernel_bad_stack
-        b       1b
-
-/*
- * Return from an exception with minimal checks.
- * The caller is assumed to have done EXCEPTION_PROLOG_COMMON.
- * If interrupts have been enabled, or anything has been
- * done that might have changed the scheduling status of
- * any task or sent any task a signal, you should use
- * ret_from_except or ret_from_except_lite instead of this.
- */
-        .globl  fast_exception_return
-fast_exception_return:
-        ld      r12,_MSR(r1)
-        ld      r11,_NIP(r1)
-        andi.   r3,r12,MSR_RI           /* check if RI is set */
-        beq-    unrecov_fer
-        ld      r3,_CCR(r1)
-        ld      r4,_LINK(r1)
-        ld      r5,_CTR(r1)
-        ld      r6,_XER(r1)
-        mtcr    r3
-        mtlr    r4
-        mtctr   r5
-        mtxer   r6
-        REST_GPR(0, r1)
-        REST_8GPRS(2, r1)
-
-        mfmsr   r10
-        clrrdi  r10,r10,2               /* clear RI (LE is 0 already) */
-        mtmsrd  r10,1
-
-        mtspr   SPRN_SRR1,r12
-        mtspr   SPRN_SRR0,r11
-        REST_4GPRS(10, r1)
-        ld      r1,GPR1(r1)
-        rfid
-        b       .       /* prevent speculative execution */
-
-unrecov_fer:
-        bl      .save_nvgprs
-1:      addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .unrecoverable_exception
-        b       1b
-
-/*
- * Here r13 points to the paca, r9 contains the saved CR,
- * SRR0 and SRR1 are saved in r11 and r12,
- * r9 - r13 are saved in paca->exgen.
- */
-        .align  7
-        .globl data_access_common
-data_access_common:
-        RUNLATCH_ON(r10)                /* It wont fit in the 0x300 handler */
-        mfspr   r10,SPRN_DAR
-        std     r10,PACA_EXGEN+EX_DAR(r13)
-        mfspr   r10,SPRN_DSISR
-        stw     r10,PACA_EXGEN+EX_DSISR(r13)
-        EXCEPTION_PROLOG_COMMON(0x300, PACA_EXGEN)
-        ld      r3,PACA_EXGEN+EX_DAR(r13)
-        lwz     r4,PACA_EXGEN+EX_DSISR(r13)
-        li      r5,0x300
-        b       .do_hash_page           /* Try to handle as hpte fault */
-
-        .align  7
-        .globl instruction_access_common
-instruction_access_common:
-        EXCEPTION_PROLOG_COMMON(0x400, PACA_EXGEN)
-        ld      r3,_NIP(r1)
-        andis.  r4,r12,0x5820
-        li      r5,0x400
-        b       .do_hash_page           /* Try to handle as hpte fault */
-
-/*
- * Here is the common SLB miss user that is used when going to virtual
- * mode for SLB misses, that is currently not used
- */
-#ifdef __DISABLED__
-        .align  7
-        .globl  slb_miss_user_common
-slb_miss_user_common:
-        mflr    r10
-        std     r3,PACA_EXGEN+EX_DAR(r13)
-        stw     r9,PACA_EXGEN+EX_CCR(r13)
-        std     r10,PACA_EXGEN+EX_LR(r13)
-        std     r11,PACA_EXGEN+EX_SRR0(r13)
-        bl      .slb_allocate_user
-
-        ld      r10,PACA_EXGEN+EX_LR(r13)
-        ld      r3,PACA_EXGEN+EX_R3(r13)
-        lwz     r9,PACA_EXGEN+EX_CCR(r13)
-        ld      r11,PACA_EXGEN+EX_SRR0(r13)
-        mtlr    r10
-        beq-    slb_miss_fault
-
-        andi.   r10,r12,MSR_RI          /* check for unrecoverable exception */
-        beq-    unrecov_user_slb
-        mfmsr   r10
-
-.machine push
-.machine "power4"
-        mtcrf   0x80,r9
-.machine pop
-
-        clrrdi  r10,r10,2               /* clear RI before setting SRR0/1 */
-        mtmsrd  r10,1
-
-        mtspr   SRR0,r11
-        mtspr   SRR1,r12
-
-        ld      r9,PACA_EXGEN+EX_R9(r13)
-        ld      r10,PACA_EXGEN+EX_R10(r13)
-        ld      r11,PACA_EXGEN+EX_R11(r13)
-        ld      r12,PACA_EXGEN+EX_R12(r13)
-        ld      r13,PACA_EXGEN+EX_R13(r13)
-        rfid
-        b       .
-
-slb_miss_fault:
-        EXCEPTION_PROLOG_COMMON(0x380, PACA_EXGEN)
-        ld      r4,PACA_EXGEN+EX_DAR(r13)
-        li      r5,0
-        std     r4,_DAR(r1)
-        std     r5,_DSISR(r1)
-        b       .handle_page_fault
-
-unrecov_user_slb:
-        EXCEPTION_PROLOG_COMMON(0x4200, PACA_EXGEN)
-        DISABLE_INTS
-        bl      .save_nvgprs
-1:      addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .unrecoverable_exception
-        b       1b
-
-#endif /* __DISABLED__ */
-
-
-/*
- * r13 points to the PACA, r9 contains the saved CR,
- * r12 contain the saved SRR1, SRR0 is still ready for return
- * r3 has the faulting address
- * r9 - r13 are saved in paca->exslb.
- * r3 is saved in paca->slb_r3
- * We assume we aren't going to take any exceptions during this procedure.
- */
-_GLOBAL(slb_miss_realmode)
-        mflr    r10
-
-        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
-        std     r10,PACA_EXSLB+EX_LR(r13)       /* save LR */
-
-        bl      .slb_allocate_realmode
-
-        /* All done -- return from exception. */
-
-        ld      r10,PACA_EXSLB+EX_LR(r13)
-        ld      r3,PACA_EXSLB+EX_R3(r13)
-        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
-#ifdef CONFIG_PPC_ISERIES
-        ld      r11,PACALPPACA+LPPACASRR0(r13)  /* get SRR0 value */
-#endif /* CONFIG_PPC_ISERIES */
-
-        mtlr    r10
-
-        andi.   r10,r12,MSR_RI  /* check for unrecoverable exception */
-        beq-    unrecov_slb
-
-.machine        push
-.machine        "power4"
-        mtcrf   0x80,r9
-        mtcrf   0x01,r9         /* slb_allocate uses cr0 and cr7 */
-.machine        pop
-
-#ifdef CONFIG_PPC_ISERIES
-        mtspr   SPRN_SRR0,r11
-        mtspr   SPRN_SRR1,r12
-#endif /* CONFIG_PPC_ISERIES */
-        ld      r9,PACA_EXSLB+EX_R9(r13)
-        ld      r10,PACA_EXSLB+EX_R10(r13)
-        ld      r11,PACA_EXSLB+EX_R11(r13)
-        ld      r12,PACA_EXSLB+EX_R12(r13)
-        ld      r13,PACA_EXSLB+EX_R13(r13)
-        rfid
-        b       .       /* prevent speculative execution */
-
-unrecov_slb:
-        EXCEPTION_PROLOG_COMMON(0x4100, PACA_EXSLB)
-        DISABLE_INTS
-        bl      .save_nvgprs
-1:      addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .unrecoverable_exception
-        b       1b
-
-        .align  7
-        .globl hardware_interrupt_common
-        .globl hardware_interrupt_entry
-hardware_interrupt_common:
-        EXCEPTION_PROLOG_COMMON(0x500, PACA_EXGEN)
-hardware_interrupt_entry:
-        DISABLE_INTS
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .do_IRQ
-        b       .ret_from_except_lite
-
-        .align  7
-        .globl alignment_common
-alignment_common:
-        mfspr   r10,SPRN_DAR
-        std     r10,PACA_EXGEN+EX_DAR(r13)
-        mfspr   r10,SPRN_DSISR
-        stw     r10,PACA_EXGEN+EX_DSISR(r13)
-        EXCEPTION_PROLOG_COMMON(0x600, PACA_EXGEN)
-        ld      r3,PACA_EXGEN+EX_DAR(r13)
-        lwz     r4,PACA_EXGEN+EX_DSISR(r13)
-        std     r3,_DAR(r1)
-        std     r4,_DSISR(r1)
-        bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
-        bl      .alignment_exception
-        b       .ret_from_except
-
-        .align  7
-        .globl program_check_common
-program_check_common:
-        EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
-        bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
-        bl      .program_check_exception
-        b       .ret_from_except
-
-        .align  7
-        .globl fp_unavailable_common
-fp_unavailable_common:
-        EXCEPTION_PROLOG_COMMON(0x800, PACA_EXGEN)
-        bne     .load_up_fpu            /* if from user, just load it up */
-        bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
-        bl      .kernel_fp_unavailable_exception
-        BUG_OPCODE
-
-        .align  7
-        .globl altivec_unavailable_common
-altivec_unavailable_common:
-        EXCEPTION_PROLOG_COMMON(0xf20, PACA_EXGEN)
-#ifdef CONFIG_ALTIVEC
-BEGIN_FTR_SECTION
-        bne     .load_up_altivec        /* if from user, just load it up */
-END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
-#endif
-        bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        ENABLE_INTS
-        bl      .altivec_unavailable_exception
-        b       .ret_from_except
-
-#ifdef CONFIG_ALTIVEC
-/*
- * load_up_altivec(unused, unused, tsk)
- * Disable VMX for the task which had it previously,
- * and save its vector registers in its thread_struct.
- * Enables the VMX for use in the kernel on return.
- * On SMP we know the VMX is free, since we give it up every
- * switch (ie, no lazy save of the vector registers).
- * On entry: r13 == 'current' && last_task_used_altivec != 'current'
- */
-_STATIC(load_up_altivec)
-        mfmsr   r5                      /* grab the current MSR */
-        oris    r5,r5,MSR_VEC@h
-        mtmsrd  r5                      /* enable use of VMX now */
-        isync
-
-/*
- * For SMP, we don't do lazy VMX switching because it just gets too
- * horrendously complex, especially when a task switches from one CPU
- * to another.  Instead we call giveup_altvec in switch_to.
- * VRSAVE isn't dealt with here, that is done in the normal context
- * switch code. Note that we could rely on vrsave value to eventually
- * avoid saving all of the VREGs here...
- */
-#ifndef CONFIG_SMP
-        ld      r3,last_task_used_altivec@got(r2)
-        ld      r4,0(r3)
-        cmpdi   0,r4,0
-        beq     1f
-        /* Save VMX state to last_task_used_altivec's THREAD struct */
-        addi    r4,r4,THREAD
-        SAVE_32VRS(0,r5,r4)
-        mfvscr  vr0
-        li      r10,THREAD_VSCR
-        stvx    vr0,r10,r4
-        /* Disable VMX for last_task_used_altivec */
-        ld      r5,PT_REGS(r4)
-        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-        lis     r6,MSR_VEC@h
-        andc    r4,r4,r6
-        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#endif /* CONFIG_SMP */
-        /* Hack: if we get an altivec unavailable trap with VRSAVE
-         * set to all zeros, we assume this is a broken application
-         * that fails to set it properly, and thus we switch it to
-         * all 1's
-         */
-        mfspr   r4,SPRN_VRSAVE
-        cmpdi   0,r4,0
-        bne+    1f
-        li      r4,-1
-        mtspr   SPRN_VRSAVE,r4
-1:
-        /* enable use of VMX after return */
-        ld      r4,PACACURRENT(r13)
-        addi    r5,r4,THREAD            /* Get THREAD */
-        oris    r12,r12,MSR_VEC@h
-        std     r12,_MSR(r1)
-        li      r4,1
-        li      r10,THREAD_VSCR
-        stw     r4,THREAD_USED_VR(r5)
-        lvx     vr0,r10,r5
-        mtvscr  vr0
-        REST_32VRS(0,r4,r5)
-#ifndef CONFIG_SMP
-        /* Update last_task_used_math to 'current' */
-        subi    r4,r5,THREAD            /* Back to 'current' */
-        std     r4,0(r3)
-#endif /* CONFIG_SMP */
-        /* restore registers and return */
-        b       fast_exception_return
-#endif /* CONFIG_ALTIVEC */
-
-/*
- * Hash table stuff
- */
-        .align  7
-_GLOBAL(do_hash_page)
-        std     r3,_DAR(r1)
-        std     r4,_DSISR(r1)
-
-        andis.  r0,r4,0xa450            /* weird error? */
-        bne-    .handle_page_fault      /* if not, try to insert a HPTE */
-BEGIN_FTR_SECTION
-        andis.  r0,r4,0x0020            /* Is it a segment table fault? */
-        bne-    .do_ste_alloc           /* If so handle it */
-END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
-
-        /*
-         * We need to set the _PAGE_USER bit if MSR_PR is set or if we are
-         * accessing a userspace segment (even from the kernel). We assume
-         * kernel addresses always have the high bit set.
-         */
-        rlwinm  r4,r4,32-25+9,31-9,31-9 /* DSISR_STORE -> _PAGE_RW */
-        rotldi  r0,r3,15                /* Move high bit into MSR_PR posn */
-        orc     r0,r12,r0               /* MSR_PR | ~high_bit */
-        rlwimi  r4,r0,32-13,30,30       /* becomes _PAGE_USER access bit */
-        ori     r4,r4,1                 /* add _PAGE_PRESENT */
-        rlwimi  r4,r5,22+2,31-2,31-2    /* Set _PAGE_EXEC if trap is 0x400 */
-
-        /*
-         * On iSeries, we soft-disable interrupts here, then
-         * hard-enable interrupts so that the hash_page code can spin on
-         * the hash_table_lock without problems on a shared processor.
-         */
-        DISABLE_INTS
-
-        /*
-         * r3 contains the faulting address
-         * r4 contains the required access permissions
-         * r5 contains the trap number
-         *
-         * at return r3 = 0 for success
-         */
-        bl      .hash_page              /* build HPTE if possible */
-        cmpdi   r3,0                    /* see if hash_page succeeded */
-
-#ifdef DO_SOFT_DISABLE
-        /*
-         * If we had interrupts soft-enabled at the point where the
-         * DSI/ISI occurred, and an interrupt came in during hash_page,
-         * handle it now.
-         * We jump to ret_from_except_lite rather than fast_exception_return
-         * because ret_from_except_lite will check for and handle pending
-         * interrupts if necessary.
-         */
-        beq     .ret_from_except_lite
-        /* For a hash failure, we don't bother re-enabling interrupts */
-        ble-    12f
-
-        /*
-         * hash_page couldn't handle it, set soft interrupt enable back
-         * to what it was before the trap.  Note that .local_irq_restore
-         * handles any interrupts pending at this point.
-         */
-        ld      r3,SOFTE(r1)
-        bl      .local_irq_restore
-        b       11f
-#else
-        beq     fast_exception_return   /* Return from exception on success */
-        ble-    12f                     /* Failure return from hash_page */
-
-        /* fall through */
-#endif
-
-/* Here we have a page fault that hash_page can't handle. */
-_GLOBAL(handle_page_fault)
-        ENABLE_INTS
-11:     ld      r4,_DAR(r1)
-        ld      r5,_DSISR(r1)
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        bl      .do_page_fault
-        cmpdi   r3,0
-        beq+    .ret_from_except_lite
-        bl      .save_nvgprs
-        mr      r5,r3
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        lwz     r4,_DAR(r1)
-        bl      .bad_page_fault
-        b       .ret_from_except
-
-/* We have a page fault that hash_page could handle but HV refused
- * the PTE insertion
- */
-12:     bl      .save_nvgprs
-        addi    r3,r1,STACK_FRAME_OVERHEAD
-        lwz     r4,_DAR(r1)
-        bl      .low_hash_fault
-        b       .ret_from_except
-
-        /* here we have a segment miss */
-_GLOBAL(do_ste_alloc)
-        bl      .ste_allocate           /* try to insert stab entry */
-        cmpdi   r3,0
-        beq+    fast_exception_return
-        b       .handle_page_fault
-
-/*
- * r13 points to the PACA, r9 contains the saved CR,
- * r11 and r12 contain the saved SRR0 and SRR1.
- * r9 - r13 are saved in paca->exslb.
- * We assume we aren't going to take any exceptions during this procedure.
- * We assume (DAR >> 60) == 0xc.
- */
-        .align  7
-_GLOBAL(do_stab_bolted)
-        stw     r9,PACA_EXSLB+EX_CCR(r13)       /* save CR in exc. frame */
-        std     r11,PACA_EXSLB+EX_SRR0(r13)     /* save SRR0 in exc. frame */
-
-        /* Hash to the primary group */
-        ld      r10,PACASTABVIRT(r13)
-        mfspr   r11,SPRN_DAR
-        srdi    r11,r11,28
-        rldimi  r10,r11,7,52    /* r10 = first ste of the group */
-
-        /* Calculate VSID */
-        /* This is a kernel address, so protovsid = ESID */
-        ASM_VSID_SCRAMBLE(r11, r9)
-        rldic   r9,r11,12,16    /* r9 = vsid << 12 */
-
-        /* Search the primary group for a free entry */
-1:      ld      r11,0(r10)      /* Test valid bit of the current ste    */
-        andi.   r11,r11,0x80
-        beq     2f
-        addi    r10,r10,16
-        andi.   r11,r10,0x70
-        bne     1b
-
-        /* Stick for only searching the primary group for now.          */
-        /* At least for now, we use a very simple random castout scheme */
-        /* Use the TB as a random number ;  OR in 1 to avoid entry 0    */
-        mftb    r11
-        rldic   r11,r11,4,57    /* r11 = (r11 << 4) & 0x70 */
-        ori     r11,r11,0x10
-
-        /* r10 currently points to an ste one past the group of interest */
-        /* make it point to the randomly selected entry                 */
-        subi    r10,r10,128
-        or      r10,r10,r11     /* r10 is the entry to invalidate       */
-
-        isync                   /* mark the entry invalid               */
-        ld      r11,0(r10)
-        rldicl  r11,r11,56,1    /* clear the valid bit */
-        rotldi  r11,r11,8
-        std     r11,0(r10)
-        sync
-
-        clrrdi  r11,r11,28      /* Get the esid part of the ste         */
-        slbie   r11
-
-2:      std     r9,8(r10)       /* Store the vsid part of the ste       */
-        eieio
-
-        mfspr   r11,SPRN_DAR            /* Get the new esid                     */
-        clrrdi  r11,r11,28      /* Permits a full 32b of ESID           */
-        ori     r11,r11,0x90    /* Turn on valid and kp                 */
-        std     r11,0(r10)      /* Put new entry back into the stab     */
-
-        sync
-
-        /* All done -- return from exception. */
-        lwz     r9,PACA_EXSLB+EX_CCR(r13)       /* get saved CR */
-        ld      r11,PACA_EXSLB+EX_SRR0(r13)     /* get saved SRR0 */
-
-        andi.   r10,r12,MSR_RI
-        beq-    unrecov_slb
-
-        mtcrf   0x80,r9                 /* restore CR */
-
-        mfmsr   r10
-        clrrdi  r10,r10,2
-        mtmsrd  r10,1
-
-        mtspr   SPRN_SRR0,r11
-        mtspr   SPRN_SRR1,r12
-        ld      r9,PACA_EXSLB+EX_R9(r13)
-        ld      r10,PACA_EXSLB+EX_R10(r13)
-        ld      r11,PACA_EXSLB+EX_R11(r13)
-        ld      r12,PACA_EXSLB+EX_R12(r13)
-        ld      r13,PACA_EXSLB+EX_R13(r13)
-        rfid
-        b       .       /* prevent speculative execution */
-
-/*
- * Space for CPU0's segment table.
- *
- * On iSeries, the hypervisor must fill in at least one entry before
- * we get control (with relocate on).  The address is give to the hv
- * as a page number (see xLparMap in lpardata.c), so this must be at a
- * fixed address (the linker can't compute (u64)&initial_stab >>
- * PAGE_SHIFT).
- */
-        . = STAB0_PHYS_ADDR     /* 0x6000 */
-        .globl initial_stab
-initial_stab:
-        .space  4096
-
-/*
- * Data area reserved for FWNMI option.
- * This address (0x7000) is fixed by the RPA.
- */
-        .= 0x7000
-        .globl fwnmi_data_area
-fwnmi_data_area:
-
-        /* iSeries does not use the FWNMI stuff, so it is safe to put
-         * this here, even if we later allow kernels that will boot on
-         * both pSeries and iSeries */
-#ifdef CONFIG_PPC_ISERIES
-        . = LPARMAP_PHYS
-#include "lparmap.s"
-/*
- * This ".text" is here for old compilers that generate a trailing
- * .note section when compiling .c files to .s
- */
-        .text
-#endif /* CONFIG_PPC_ISERIES */
-
-        . = 0x8000
-
-/*
- * On pSeries, secondary processors spin in the following code.
- * At entry, r3 = this processor's number (physical cpu id)
- */
-_GLOBAL(pSeries_secondary_smp_init)
-        mr      r24,r3
-        
-        /* turn on 64-bit mode */
-        bl      .enable_64b_mode
-        isync
-
-        /* Copy some CPU settings from CPU 0 */
-        bl      .__restore_cpu_setup
-
-        /* Set up a paca value for this processor. Since we have the
-         * physical cpu id in r24, we need to search the pacas to find
-         * which logical id maps to our physical one.
-         */
-        LOADADDR(r13, paca)             /* Get base vaddr of paca array  */
-        li      r5,0                    /* logical cpu id                */
-1:      lhz     r6,PACAHWCPUID(r13)     /* Load HW procid from paca      */
-        cmpw    r6,r24                  /* Compare to our id             */
-        beq     2f
-        addi    r13,r13,PACA_SIZE       /* Loop to next PACA on miss     */
-        addi    r5,r5,1
-        cmpwi   r5,NR_CPUS
-        blt     1b
-
-        mr      r3,r24                  /* not found, copy phys to r3    */
-        b       .kexec_wait             /* next kernel might do better   */
-
-2:      mtspr   SPRN_SPRG3,r13          /* Save vaddr of paca in SPRG3   */
-        /* From now on, r24 is expected to be logical cpuid */
-        mr      r24,r5
-3:      HMT_LOW
-        lbz     r23,PACAPROCSTART(r13)  /* Test if this processor should */
-                                        /* start.                        */
-        sync
-
-        /* Create a temp kernel stack for use before relocation is on.  */
-        ld      r1,PACAEMERGSP(r13)
-        subi    r1,r1,STACK_FRAME_OVERHEAD
-
-        cmpwi   0,r23,0
-#ifdef CONFIG_SMP
-        bne     .__secondary_start
-#endif
-        b       3b                      /* Loop until told to go         */
-
-#ifdef CONFIG_PPC_ISERIES
-_STATIC(__start_initialization_iSeries)
-        /* Clear out the BSS */
-        LOADADDR(r11,__bss_stop)
-        LOADADDR(r8,__bss_start)
-        sub     r11,r11,r8              /* bss size                     */
-        addi    r11,r11,7               /* round up to an even double word */
-        rldicl. r11,r11,61,3            /* shift right by 3             */
-        beq     4f
-        addi    r8,r8,-8
-        li      r0,0
-        mtctr   r11                     /* zero this many doublewords   */
-3:      stdu    r0,8(r8)
-        bdnz    3b
-4:
-        LOADADDR(r1,init_thread_union)
-        addi    r1,r1,THREAD_SIZE
-        li      r0,0
-        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
-
-        LOADADDR(r3,cpu_specs)
-        LOADADDR(r4,cur_cpu_spec)
-        li      r5,0
-        bl      .identify_cpu
-
-        LOADADDR(r2,__toc_start)
-        addi    r2,r2,0x4000
-        addi    r2,r2,0x4000
-
-        bl      .iSeries_early_setup
-        bl      .early_setup
-
-        /* relocation is on at this point */
-
-        b       .start_here_common
-#endif /* CONFIG_PPC_ISERIES */
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-
-_STATIC(__mmu_off)
-        mfmsr   r3
-        andi.   r0,r3,MSR_IR|MSR_DR
-        beqlr
-        andc    r3,r3,r0
-        mtspr   SPRN_SRR0,r4
-        mtspr   SPRN_SRR1,r3
-        sync
-        rfid
-        b       .       /* prevent speculative execution */
-
-
-/*
- * Here is our main kernel entry point. We support currently 2 kind of entries
- * depending on the value of r5.
- *
- *   r5 != NULL -> OF entry, we go to prom_init, "legacy" parameter content
- *                 in r3...r7
- *   
- *   r5 == NULL -> kexec style entry. r3 is a physical pointer to the
- *                 DT block, r4 is a physical pointer to the kernel itself
- *
- */
-_GLOBAL(__start_initialization_multiplatform)
-        /*
-         * Are we booted from a PROM Of-type client-interface ?
-         */
-        cmpldi  cr0,r5,0
-        bne     .__boot_from_prom               /* yes -> prom */
-
-        /* Save parameters */
-        mr      r31,r3
-        mr      r30,r4
-
-        /* Make sure we are running in 64 bits mode */
-        bl      .enable_64b_mode
-
-        /* Setup some critical 970 SPRs before switching MMU off */
-        bl      .__970_cpu_preinit
-
-        /* cpu # */
-        li      r24,0
-
-        /* Switch off MMU if not already */
-        LOADADDR(r4, .__after_prom_start - KERNELBASE)
-        add     r4,r4,r30
-        bl      .__mmu_off
-        b       .__after_prom_start
-
-_STATIC(__boot_from_prom)
-        /* Save parameters */
-        mr      r31,r3
-        mr      r30,r4
-        mr      r29,r5
-        mr      r28,r6
-        mr      r27,r7
-
-        /* Make sure we are running in 64 bits mode */
-        bl      .enable_64b_mode
-
-        /* put a relocation offset into r3 */
-        bl      .reloc_offset
-
-        LOADADDR(r2,__toc_start)
-        addi    r2,r2,0x4000
-        addi    r2,r2,0x4000
-
-        /* Relocate the TOC from a virt addr to a real addr */
-        sub     r2,r2,r3
-
-        /* Restore parameters */
-        mr      r3,r31
-        mr      r4,r30
-        mr      r5,r29
-        mr      r6,r28
-        mr      r7,r27
-
-        /* Do all of the interaction with OF client interface */
-        bl      .prom_init
-        /* We never return */
-        trap
-
-/*
- * At this point, r3 contains the physical address we are running at,
- * returned by prom_init()
- */
-_STATIC(__after_prom_start)
-
-/*
- * We need to run with __start at physical address 0.
- * This will leave some code in the first 256B of
- * real memory, which are reserved for software use.
- * The remainder of the first page is loaded with the fixed
- * interrupt vectors.  The next two pages are filled with
- * unknown exception placeholders.
- *
- * Note: This process overwrites the OF exception vectors.
- *      r26 == relocation offset
- *      r27 == KERNELBASE
- */
-        bl      .reloc_offset
-        mr      r26,r3
-        SET_REG_TO_CONST(r27,KERNELBASE)
-
-        li      r3,0                    /* target addr */
-
-        // XXX FIXME: Use phys returned by OF (r30)
-        sub     r4,r27,r26              /* source addr                   */
-                                        /* current address of _start     */
-                                        /*   i.e. where we are running   */
-                                        /*      the source addr          */
-
-        LOADADDR(r5,copy_to_here)       /* # bytes of memory to copy     */
-        sub     r5,r5,r27
-
-        li      r6,0x100                /* Start offset, the first 0x100 */
-                                        /* bytes were copied earlier.    */
-
-        bl      .copy_and_flush         /* copy the first n bytes        */
-                                        /* this includes the code being  */
-                                        /* executed here.                */
-
-        LOADADDR(r0, 4f)                /* Jump to the copy of this code */
-        mtctr   r0                      /* that we just made/relocated   */
-        bctr
-
-4:      LOADADDR(r5,klimit)
-        sub     r5,r5,r26
-        ld      r5,0(r5)                /* get the value of klimit */
-        sub     r5,r5,r27
-        bl      .copy_and_flush         /* copy the rest */
-        b       .start_here_multiplatform
-
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
-/*
- * Copy routine used to copy the kernel to start at physical address 0
- * and flush and invalidate the caches as needed.
- * r3 = dest addr, r4 = source addr, r5 = copy limit, r6 = start offset
- * on exit, r3, r4, r5 are unchanged, r6 is updated to be >= r5.
- *
- * Note: this routine *only* clobbers r0, r6 and lr
- */
-_GLOBAL(copy_and_flush)
-        addi    r5,r5,-8
-        addi    r6,r6,-8
-4:      li      r0,16                   /* Use the least common         */
-                                        /* denominator cache line       */
-                                        /* size.  This results in       */
-                                        /* extra cache line flushes     */
-                                        /* but operation is correct.    */
-                                        /* Can't get cache line size    */
-                                        /* from NACA as it is being     */
-                                        /* moved too.                   */
-
-        mtctr   r0                      /* put # words/line in ctr      */
-3:      addi    r6,r6,8                 /* copy a cache line            */
-        ldx     r0,r6,r4
-        stdx    r0,r6,r3
-        bdnz    3b
-        dcbst   r6,r3                   /* write it to memory           */
-        sync
-        icbi    r6,r3                   /* flush the icache line        */
-        cmpld   0,r6,r5
-        blt     4b
-        sync
-        addi    r5,r5,8
-        addi    r6,r6,8
-        blr
-
-.align 8
-copy_to_here:
-
-#ifdef CONFIG_SMP
-#ifdef CONFIG_PPC_PMAC
-/*
- * On PowerMac, secondary processors starts from the reset vector, which
- * is temporarily turned into a call to one of the functions below.
- */
-        .section ".text";
-        .align 2 ;
-
-        .globl  __secondary_start_pmac_0
-__secondary_start_pmac_0:
-        /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */
-        li      r24,0
-        b       1f
-        li      r24,1
-        b       1f
-        li      r24,2
-        b       1f
-        li      r24,3
-1:
-        
-_GLOBAL(pmac_secondary_start)
-        /* turn on 64-bit mode */
-        bl      .enable_64b_mode
-        isync
-
-        /* Copy some CPU settings from CPU 0 */
-        bl      .__restore_cpu_setup
-
-        /* pSeries do that early though I don't think we really need it */
-        mfmsr   r3
-        ori     r3,r3,MSR_RI
-        mtmsrd  r3                      /* RI on */
-
-        /* Set up a paca value for this processor. */
-        LOADADDR(r4, paca)               /* Get base vaddr of paca array        */
-        mulli   r13,r24,PACA_SIZE        /* Calculate vaddr of right paca */
-        add     r13,r13,r4              /* for this processor.          */
-        mtspr   SPRN_SPRG3,r13           /* Save vaddr of paca in SPRG3 */
-
-        /* Create a temp kernel stack for use before relocation is on.  */
-        ld      r1,PACAEMERGSP(r13)
-        subi    r1,r1,STACK_FRAME_OVERHEAD
-
-        b       .__secondary_start
-
-#endif /* CONFIG_PPC_PMAC */
-
-/*
- * This function is called after the master CPU has released the
- * secondary processors.  The execution environment is relocation off.
- * The paca for this processor has the following fields initialized at
- * this point:
- *   1. Processor number
- *   2. Segment table pointer (virtual address)
- * On entry the following are set:
- *   r1 = stack pointer.  vaddr for iSeries, raddr (temp stack) for pSeries
- *   r24   = cpu# (in Linux terms)
- *   r13   = paca virtual address
- *   SPRG3 = paca virtual address
- */
-_GLOBAL(__secondary_start)
-
-        HMT_MEDIUM                      /* Set thread priority to MEDIUM */
-
-        ld      r2,PACATOC(r13)
-
-        /* Do early setup for that CPU */
-        bl      .early_setup_secondary
-
-        /* Initialize the kernel stack.  Just a repeat for iSeries.      */
-        LOADADDR(r3,current_set)
-        sldi    r28,r24,3               /* get current_set[cpu#]         */
-        ldx     r1,r3,r28
-        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
-        std     r1,PACAKSAVE(r13)
-
-        li      r7,0
-        mtlr    r7
-
-        /* enable MMU and jump to start_secondary */
-        LOADADDR(r3,.start_secondary_prolog)
-        SET_REG_TO_CONST(r4, MSR_KERNEL)
-#ifdef DO_SOFT_DISABLE
-        ori     r4,r4,MSR_EE
-#endif
-        mtspr   SPRN_SRR0,r3
-        mtspr   SPRN_SRR1,r4
-        rfid
-        b       .       /* prevent speculative execution */
-
-/* 
- * Running with relocation on at this point.  All we want to do is
- * zero the stack back-chain pointer before going into C code.
- */
-_GLOBAL(start_secondary_prolog)
-        li      r3,0
-        std     r3,0(r1)                /* Zero the stack frame pointer */
-        bl      .start_secondary
-#endif
-
-/*
- * This subroutine clobbers r11 and r12
- */
-_GLOBAL(enable_64b_mode)
-        mfmsr   r11                     /* grab the current MSR */
-        li      r12,1
-        rldicr  r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
-        or      r11,r11,r12
-        li      r12,1
-        rldicr  r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
-        or      r11,r11,r12
-        mtmsrd  r11
-        isync
-        blr
-
-#ifdef CONFIG_PPC_MULTIPLATFORM
-/*
- * This is where the main kernel code starts.
- */
-_STATIC(start_here_multiplatform)
-        /* get a new offset, now that the kernel has moved. */
-        bl      .reloc_offset
-        mr      r26,r3
-
-        /* Clear out the BSS. It may have been done in prom_init,
-         * already but that's irrelevant since prom_init will soon
-         * be detached from the kernel completely. Besides, we need
-         * to clear it now for kexec-style entry.
-         */
-        LOADADDR(r11,__bss_stop)
-        LOADADDR(r8,__bss_start)
-        sub     r11,r11,r8              /* bss size                     */
-        addi    r11,r11,7               /* round up to an even double word */
-        rldicl. r11,r11,61,3            /* shift right by 3             */
-        beq     4f
-        addi    r8,r8,-8
-        li      r0,0
-        mtctr   r11                     /* zero this many doublewords   */
-3:      stdu    r0,8(r8)
-        bdnz    3b
-4:
-
-        mfmsr   r6
-        ori     r6,r6,MSR_RI
-        mtmsrd  r6                      /* RI on */
-
-#ifdef CONFIG_HMT
-        /* Start up the second thread on cpu 0 */
-        mfspr   r3,SPRN_PVR
-        srwi    r3,r3,16
-        cmpwi   r3,0x34                 /* Pulsar  */
-        beq     90f
-        cmpwi   r3,0x36                 /* Icestar */
-        beq     90f
-        cmpwi   r3,0x37                 /* SStar   */
-        beq     90f
-        b       91f                     /* HMT not supported */
-90:     li      r3,0
-        bl      .hmt_start_secondary
-91:
-#endif
-
-        /* The following gets the stack and TOC set up with the regs */
-        /* pointing to the real addr of the kernel stack.  This is   */
-        /* all done to support the C function call below which sets  */
-        /* up the htab.  This is done because we have relocated the  */
-        /* kernel but are still running in real mode. */
-
-        LOADADDR(r3,init_thread_union)
-        sub     r3,r3,r26
-
-        /* set up a stack pointer (physical address) */
-        addi    r1,r3,THREAD_SIZE
-        li      r0,0
-        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
-
-        /* set up the TOC (physical address) */
-        LOADADDR(r2,__toc_start)
-        addi    r2,r2,0x4000
-        addi    r2,r2,0x4000
-        sub     r2,r2,r26
-
-        LOADADDR(r3,cpu_specs)
-        sub     r3,r3,r26
-        LOADADDR(r4,cur_cpu_spec)
-        sub     r4,r4,r26
-        mr      r5,r26
-        bl      .identify_cpu
-
-        /* Save some low level config HIDs of CPU0 to be copied to
-         * other CPUs later on, or used for suspend/resume
-         */
-        bl      .__save_cpu_setup
-        sync
-
-        /* Setup a valid physical PACA pointer in SPRG3 for early_setup
-         * note that boot_cpuid can always be 0 nowadays since there is
-         * nowhere it can be initialized differently before we reach this
-         * code
-         */
-        LOADADDR(r27, boot_cpuid)
-        sub     r27,r27,r26
-        lwz     r27,0(r27)
-
-        LOADADDR(r24, paca)             /* Get base vaddr of paca array  */
-        mulli   r13,r27,PACA_SIZE       /* Calculate vaddr of right paca */
-        add     r13,r13,r24             /* for this processor.           */
-        sub     r13,r13,r26             /* convert to physical addr      */
-        mtspr   SPRN_SPRG3,r13          /* PPPBBB: Temp... -Peter */
-        
-        /* Do very early kernel initializations, including initial hash table,
-         * stab and slb setup before we turn on relocation.     */
-
-        /* Restore parameters passed from prom_init/kexec */
-        mr      r3,r31
-        bl      .early_setup
-
-        LOADADDR(r3,.start_here_common)
-        SET_REG_TO_CONST(r4, MSR_KERNEL)
-        mtspr   SPRN_SRR0,r3
-        mtspr   SPRN_SRR1,r4
-        rfid
-        b       .       /* prevent speculative execution */
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-        
-        /* This is where all platforms converge execution */
-_STATIC(start_here_common)
-        /* relocation is on at this point */
-
-        /* The following code sets up the SP and TOC now that we are */
-        /* running with translation enabled. */
-
-        LOADADDR(r3,init_thread_union)
-
-        /* set up the stack */
-        addi    r1,r3,THREAD_SIZE
-        li      r0,0
-        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
-
-        /* Apply the CPUs-specific fixups (nop out sections not relevant
-         * to this CPU
-         */
-        li      r3,0
-        bl      .do_cpu_ftr_fixups
-
-        LOADADDR(r26, boot_cpuid)
-        lwz     r26,0(r26)
-
-        LOADADDR(r24, paca)             /* Get base vaddr of paca array  */
-        mulli   r13,r26,PACA_SIZE       /* Calculate vaddr of right paca */
-        add     r13,r13,r24             /* for this processor.           */
-        mtspr   SPRN_SPRG3,r13
-
-        /* ptr to current */
-        LOADADDR(r4,init_task)
-        std     r4,PACACURRENT(r13)
-
-        /* Load the TOC */
-        ld      r2,PACATOC(r13)
-        std     r1,PACAKSAVE(r13)
-
-        bl      .setup_system
-
-        /* Load up the kernel context */
-5:
-#ifdef DO_SOFT_DISABLE
-        li      r5,0
-        stb     r5,PACAPROCENABLED(r13) /* Soft Disabled */
-        mfmsr   r5
-        ori     r5,r5,MSR_EE            /* Hard Enabled */
-        mtmsrd  r5
-#endif
-
-        bl .start_kernel
-
-_GLOBAL(hmt_init)
-#ifdef CONFIG_HMT
-        LOADADDR(r5, hmt_thread_data)
-        mfspr   r7,SPRN_PVR
-        srwi    r7,r7,16
-        cmpwi   r7,0x34                 /* Pulsar  */
-        beq     90f
-        cmpwi   r7,0x36                 /* Icestar */
-        beq     91f
-        cmpwi   r7,0x37                 /* SStar   */
-        beq     91f
-        b       101f
-90:     mfspr   r6,SPRN_PIR
-        andi.   r6,r6,0x1f
-        b       92f
-91:     mfspr   r6,SPRN_PIR
-        andi.   r6,r6,0x3ff
-92:     sldi    r4,r24,3
-        stwx    r6,r5,r4
-        bl      .hmt_start_secondary
-        b       101f
-
-__hmt_secondary_hold:
-        LOADADDR(r5, hmt_thread_data)
-        clrldi  r5,r5,4
-        li      r7,0
-        mfspr   r6,SPRN_PIR
-        mfspr   r8,SPRN_PVR
-        srwi    r8,r8,16
-        cmpwi   r8,0x34
-        bne     93f
-        andi.   r6,r6,0x1f
-        b       103f
-93:     andi.   r6,r6,0x3f
-
-103:    lwzx    r8,r5,r7
-        cmpw    r8,r6
-        beq     104f
-        addi    r7,r7,8
-        b       103b
-
-104:    addi    r7,r7,4
-        lwzx    r9,r5,r7
-        mr      r24,r9
-101:
-#endif
-        mr      r3,r24
-        b       .pSeries_secondary_smp_init
-
-#ifdef CONFIG_HMT
-_GLOBAL(hmt_start_secondary)
-        LOADADDR(r4,__hmt_secondary_hold)
-        clrldi  r4,r4,4
-        mtspr   SPRN_NIADORM, r4
-        mfspr   r4, SPRN_MSRDORM
-        li      r5, -65
-        and     r4, r4, r5
-        mtspr   SPRN_MSRDORM, r4
-        lis     r4,0xffef
-        ori     r4,r4,0x7403
-        mtspr   SPRN_TSC, r4
-        li      r4,0x1f4
-        mtspr   SPRN_TST, r4
-        mfspr   r4, SPRN_HID0
-        ori     r4, r4, 0x1
-        mtspr   SPRN_HID0, r4
-        mfspr   r4, SPRN_CTRLF
-        oris    r4, r4, 0x40
-        mtspr   SPRN_CTRLT, r4
-        blr
-#endif
-
-/*
- * We put a few things here that have to be page-aligned.
- * This stuff goes at the beginning of the bss, which is page-aligned.
- */
-        .section ".bss"
-
-        .align  PAGE_SHIFT
-
-        .globl  empty_zero_page
-empty_zero_page:
-        .space  PAGE_SIZE
-
-        .globl  swapper_pg_dir
-swapper_pg_dir:
-        .space  PAGE_SIZE
-
-/*
- * This space gets a copy of optional info passed to us by the bootstrap
- * Used to pass parameters into the kernel like root=/dev/sda1, etc.
- */
-        .globl  cmd_line
-cmd_line:
-        .space  COMMAND_LINE_SIZE
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
deleted file mode 100644
index 5e089deb0a2b..000000000000
--- a/arch/ppc64/kernel/misc.S
+++ /dev/null
@@ -1,940 +0,0 @@
-/*
- *  arch/ppc/kernel/misc.S
- *
- *  
- *
- * This file contains miscellaneous low-level functions.
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
- * and Paul Mackerras.
- * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
- * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) 
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <linux/sys.h>
-#include <asm/unistd.h>
-#include <asm/errno.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/cputable.h>
-#include <asm/thread_info.h>
-
-        .text
-
-/*
- * Returns (address we were linked at) - (address we are running at)
- * for use before the text and data are mapped to KERNELBASE.
- */
-
-_GLOBAL(reloc_offset)
-        mflr    r0
-        bl      1f
-1:      mflr    r3
-        LOADADDR(r4,1b)
-        sub     r3,r4,r3
-        mtlr    r0
-        blr
-
-_GLOBAL(get_msr)
-        mfmsr   r3
-        blr
-
-_GLOBAL(get_dar)
-        mfdar   r3
-        blr
-
-_GLOBAL(get_srr0)
-        mfsrr0  r3
-        blr
-
-_GLOBAL(get_srr1)
-        mfsrr1  r3
-        blr
-        
-_GLOBAL(get_sp)
-        mr      r3,r1
-        blr
-
-#ifdef CONFIG_IRQSTACKS
-_GLOBAL(call_do_softirq)
-        mflr    r0
-        std     r0,16(r1)
-        stdu    r1,THREAD_SIZE-112(r3)
-        mr      r1,r3
-        bl      .__do_softirq
-        ld      r1,0(r1)
-        ld      r0,16(r1)
-        mtlr    r0
-        blr
-
-_GLOBAL(call___do_IRQ)
-        mflr    r0
-        std     r0,16(r1)
-        stdu    r1,THREAD_SIZE-112(r5)
-        mr      r1,r5
-        bl      .__do_IRQ
-        ld      r1,0(r1)
-        ld      r0,16(r1)
-        mtlr    r0
-        blr
-#endif /* CONFIG_IRQSTACKS */
-
-        /*
- * To be called by C code which needs to do some operations with MMU
- * disabled. Note that interrupts have to be disabled by the caller
- * prior to calling us. The code called _MUST_ be in the RMO of course
- * and part of the linear mapping as we don't attempt to translate the
- * stack pointer at all. The function is called with the stack switched
- * to this CPU emergency stack
- *
- * prototype is void *call_with_mmu_off(void *func, void *data);
- *
- * the called function is expected to be of the form
- *
- * void *called(void *data); 
- */
-_GLOBAL(call_with_mmu_off)
-        mflr    r0                      /* get link, save it on stackframe */
-        std     r0,16(r1)
-        mr      r1,r5                   /* save old stack ptr */
-        ld      r1,PACAEMERGSP(r13)     /* get emerg. stack */
-        subi    r1,r1,STACK_FRAME_OVERHEAD
-        std     r0,16(r1)               /* save link on emerg. stack */
-        std     r5,0(r1)                /* save old stack ptr in backchain */
-        ld      r3,0(r3)                /* get to real function ptr (assume same TOC) */
-        bl      2f                      /* we need LR to return, continue at label 2 */
-
-        ld      r0,16(r1)               /* we return here from the call, get LR and */
-        ld      r1,0(r1)                /* .. old stack ptr */
-        mtspr   SPRN_SRR0,r0            /* and get back to virtual mode with these */
-        mfmsr   r4
-        ori     r4,r4,MSR_IR|MSR_DR
-        mtspr   SPRN_SRR1,r4
-        rfid
-
-2:      mtspr   SPRN_SRR0,r3            /* coming from above, enter real mode */
-        mr      r3,r4                   /* get parameter */
-        mfmsr   r0
-        ori     r0,r0,MSR_IR|MSR_DR
-        xori    r0,r0,MSR_IR|MSR_DR
-        mtspr   SPRN_SRR1,r0
-        rfid
-
-
-        .section        ".toc","aw"
-PPC64_CACHES:
-        .tc             ppc64_caches[TC],ppc64_caches
-        .section        ".text"
-
-/*
- * Write any modified data cache blocks out to memory
- * and invalidate the corresponding instruction cache blocks.
- *
- * flush_icache_range(unsigned long start, unsigned long stop)
- *
- *   flush all bytes from start through stop-1 inclusive
- */
-
-_KPROBE(__flush_icache_range)
-
-/*
- * Flush the data cache to memory 
- * 
- * Different systems have different cache line sizes
- * and in some cases i-cache and d-cache line sizes differ from
- * each other.
- */
-        ld      r10,PPC64_CACHES@toc(r2)
-        lwz     r7,DCACHEL1LINESIZE(r10)/* Get cache line size */
-        addi    r5,r7,-1
-        andc    r6,r3,r5                /* round low to line bdy */
-        subf    r8,r6,r4                /* compute length */
-        add     r8,r8,r5                /* ensure we get enough */
-        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of cache line size */
-        srw.    r8,r8,r9                /* compute line count */
-        beqlr                           /* nothing to do? */
-        mtctr   r8
-1:      dcbst   0,r6
-        add     r6,r6,r7
-        bdnz    1b
-        sync
-
-/* Now invalidate the instruction cache */
-        
-        lwz     r7,ICACHEL1LINESIZE(r10)        /* Get Icache line size */
-        addi    r5,r7,-1
-        andc    r6,r3,r5                /* round low to line bdy */
-        subf    r8,r6,r4                /* compute length */
-        add     r8,r8,r5
-        lwz     r9,ICACHEL1LOGLINESIZE(r10)     /* Get log-2 of Icache line size */
-        srw.    r8,r8,r9                /* compute line count */
-        beqlr                           /* nothing to do? */
-        mtctr   r8
-2:      icbi    0,r6
-        add     r6,r6,r7
-        bdnz    2b
-        isync
-        blr
-
-        .text
-/*
- * Like above, but only do the D-cache.
- *
- * flush_dcache_range(unsigned long start, unsigned long stop)
- *
- *    flush all bytes from start to stop-1 inclusive
- */
-_GLOBAL(flush_dcache_range)
-
-/*
- * Flush the data cache to memory 
- * 
- * Different systems have different cache line sizes
- */
-        ld      r10,PPC64_CACHES@toc(r2)
-        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
-        addi    r5,r7,-1
-        andc    r6,r3,r5                /* round low to line bdy */
-        subf    r8,r6,r4                /* compute length */
-        add     r8,r8,r5                /* ensure we get enough */
-        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of dcache line size */
-        srw.    r8,r8,r9                /* compute line count */
-        beqlr                           /* nothing to do? */
-        mtctr   r8
-0:      dcbst   0,r6
-        add     r6,r6,r7
-        bdnz    0b
-        sync
-        blr
-
-/*
- * Like above, but works on non-mapped physical addresses.
- * Use only for non-LPAR setups ! It also assumes real mode
- * is cacheable. Used for flushing out the DART before using
- * it as uncacheable memory 
- *
- * flush_dcache_phys_range(unsigned long start, unsigned long stop)
- *
- *    flush all bytes from start to stop-1 inclusive
- */
-_GLOBAL(flush_dcache_phys_range)
-        ld      r10,PPC64_CACHES@toc(r2)
-        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
-        addi    r5,r7,-1
-        andc    r6,r3,r5                /* round low to line bdy */
-        subf    r8,r6,r4                /* compute length */
-        add     r8,r8,r5                /* ensure we get enough */
-        lwz     r9,DCACHEL1LOGLINESIZE(r10)     /* Get log-2 of dcache line size */
-        srw.    r8,r8,r9                /* compute line count */
-        beqlr                           /* nothing to do? */
-        mfmsr   r5                      /* Disable MMU Data Relocation */
-        ori     r0,r5,MSR_DR
-        xori    r0,r0,MSR_DR
-        sync
-        mtmsr   r0
-        sync
-        isync
-        mtctr   r8
-0:      dcbst   0,r6
-        add     r6,r6,r7
-        bdnz    0b
-        sync
-        isync
-        mtmsr   r5                      /* Re-enable MMU Data Relocation */
-        sync
-        isync
-        blr
-
-_GLOBAL(flush_inval_dcache_range)
-        ld      r10,PPC64_CACHES@toc(r2)
-        lwz     r7,DCACHEL1LINESIZE(r10)        /* Get dcache line size */
-        addi    r5,r7,-1
-        andc    r6,r3,r5                /* round low to line bdy */
-        subf    r8,r6,r4                /* compute length */
-        add     r8,r8,r5                /* ensure we get enough */
-        lwz     r9,DCACHEL1LOGLINESIZE(r10)/* Get log-2 of dcache line size */
-        srw.    r8,r8,r9                /* compute line count */
-        beqlr                           /* nothing to do? */
-        sync
-        isync
-        mtctr   r8
-0:      dcbf    0,r6
-        add     r6,r6,r7
-        bdnz    0b
-        sync
-        isync
-        blr
-
-
-/*
- * Flush a particular page from the data cache to RAM.
- * Note: this is necessary because the instruction cache does *not*
- * snoop from the data cache.
- *
- *      void __flush_dcache_icache(void *page)
- */
-_GLOBAL(__flush_dcache_icache)
-/*
- * Flush the data cache to memory 
- * 
- * Different systems have different cache line sizes
- */
-
-/* Flush the dcache */
-        ld      r7,PPC64_CACHES@toc(r2)
-        clrrdi  r3,r3,PAGE_SHIFT                    /* Page align */
-        lwz     r4,DCACHEL1LINESPERPAGE(r7)     /* Get # dcache lines per page */
-        lwz     r5,DCACHEL1LINESIZE(r7)         /* Get dcache line size */
-        mr      r6,r3
-        mtctr   r4
-0:      dcbst   0,r6
-        add     r6,r6,r5
-        bdnz    0b
-        sync
-
-/* Now invalidate the icache */ 
-
-        lwz     r4,ICACHEL1LINESPERPAGE(r7)     /* Get # icache lines per page */
-        lwz     r5,ICACHEL1LINESIZE(r7)         /* Get icache line size */
-        mtctr   r4
-1:      icbi    0,r3
-        add     r3,r3,r5
-        bdnz    1b
-        isync
-        blr
-        
-/*
- * I/O string operations
- *
- * insb(port, buf, len)
- * outsb(port, buf, len)
- * insw(port, buf, len)
- * outsw(port, buf, len)
- * insl(port, buf, len)
- * outsl(port, buf, len)
- * insw_ns(port, buf, len)
- * outsw_ns(port, buf, len)
- * insl_ns(port, buf, len)
- * outsl_ns(port, buf, len)
- *
- * The *_ns versions don't do byte-swapping.
- */
-_GLOBAL(_insb)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,1
-        blelr-
-00:     lbz     r5,0(r3)
-        eieio
-        stbu    r5,1(r4)
-        bdnz    00b
-        twi     0,r5,0
-        isync
-        blr
-
-_GLOBAL(_outsb)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,1
-        blelr-
-00:     lbzu    r5,1(r4)
-        stb     r5,0(r3)
-        bdnz    00b
-        sync
-        blr     
-
-_GLOBAL(_insw)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,2
-        blelr-
-00:     lhbrx   r5,0,r3
-        eieio
-        sthu    r5,2(r4)
-        bdnz    00b
-        twi     0,r5,0
-        isync
-        blr
-
-_GLOBAL(_outsw)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,2
-        blelr-
-00:     lhzu    r5,2(r4)
-        sthbrx  r5,0,r3 
-        bdnz    00b
-        sync
-        blr     
-
-_GLOBAL(_insl)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,4
-        blelr-
-00:     lwbrx   r5,0,r3
-        eieio
-        stwu    r5,4(r4)
-        bdnz    00b
-        twi     0,r5,0
-        isync
-        blr
-
-_GLOBAL(_outsl)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,4
-        blelr-
-00:     lwzu    r5,4(r4)
-        stwbrx  r5,0,r3
-        bdnz    00b
-        sync
-        blr     
-
-/* _GLOBAL(ide_insw) now in drivers/ide/ide-iops.c */
-_GLOBAL(_insw_ns)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,2
-        blelr-
-00:     lhz     r5,0(r3)
-        eieio
-        sthu    r5,2(r4)
-        bdnz    00b
-        twi     0,r5,0
-        isync
-        blr
-
-/* _GLOBAL(ide_outsw) now in drivers/ide/ide-iops.c */
-_GLOBAL(_outsw_ns)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,2
-        blelr-
-00:     lhzu    r5,2(r4)
-        sth     r5,0(r3)
-        bdnz    00b
-        sync
-        blr     
-
-_GLOBAL(_insl_ns)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,4
-        blelr-
-00:     lwz     r5,0(r3)
-        eieio
-        stwu    r5,4(r4)
-        bdnz    00b
-        twi     0,r5,0
-        isync
-        blr
-
-_GLOBAL(_outsl_ns)
-        cmpwi   0,r5,0
-        mtctr   r5
-        subi    r4,r4,4
-        blelr-
-00:     lwzu    r5,4(r4)
-        stw     r5,0(r3)
-        bdnz    00b
-        sync
-        blr     
-
-/*
- * identify_cpu and calls setup_cpu
- * In:  r3 = base of the cpu_specs array
- *      r4 = address of cur_cpu_spec
- *      r5 = relocation offset
- */
-_GLOBAL(identify_cpu)
-        mfpvr   r7
-1:
-        lwz     r8,CPU_SPEC_PVR_MASK(r3)
-        and     r8,r8,r7
-        lwz     r9,CPU_SPEC_PVR_VALUE(r3)
-        cmplw   0,r9,r8
-        beq     1f
-        addi    r3,r3,CPU_SPEC_ENTRY_SIZE
-        b       1b
-1:
-        add     r0,r3,r5
-        std     r0,0(r4)
-        ld      r4,CPU_SPEC_SETUP(r3)
-        sub     r4,r4,r5
-        ld      r4,0(r4)
-        sub     r4,r4,r5
-        mtctr   r4
-        /* Calling convention for cpu setup is r3=offset, r4=cur_cpu_spec */
-        mr      r4,r3
-        mr      r3,r5
-        bctr
-
-/*
- * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
- * and writes nop's over sections of code that don't apply for this cpu.
- * r3 = data offset (not changed)
- */
-_GLOBAL(do_cpu_ftr_fixups)
-        /* Get CPU 0 features */
-        LOADADDR(r6,cur_cpu_spec)
-        sub     r6,r6,r3
-        ld      r4,0(r6)
-        sub     r4,r4,r3
-        ld      r4,CPU_SPEC_FEATURES(r4)
-        /* Get the fixup table */
-        LOADADDR(r6,__start___ftr_fixup)
-        sub     r6,r6,r3
-        LOADADDR(r7,__stop___ftr_fixup)
-        sub     r7,r7,r3
-        /* Do the fixup */
-1:      cmpld   r6,r7
-        bgelr
-        addi    r6,r6,32
-        ld      r8,-32(r6)      /* mask */
-        and     r8,r8,r4
-        ld      r9,-24(r6)      /* value */
-        cmpld   r8,r9
-        beq     1b
-        ld      r8,-16(r6)      /* section begin */
-        ld      r9,-8(r6)       /* section end */
-        subf.   r9,r8,r9
-        beq     1b
-        /* write nops over the section of code */
-        /* todo: if large section, add a branch at the start of it */
-        srwi    r9,r9,2
-        mtctr   r9
-        sub     r8,r8,r3
-        lis     r0,0x60000000@h /* nop */
-3:      stw     r0,0(r8)
-        andi.   r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
-        beq     2f
-        dcbst   0,r8            /* suboptimal, but simpler */
-        sync
-        icbi    0,r8
-2:      addi    r8,r8,4
-        bdnz    3b
-        sync                    /* additional sync needed on g4 */
-        isync
-        b       1b
-
-#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
-/*
- * Do an IO access in real mode
- */
-_GLOBAL(real_readb)
-        mfmsr   r7
-        ori     r0,r7,MSR_DR
-        xori    r0,r0,MSR_DR
-        sync
-        mtmsrd  r0
-        sync
-        isync
-        mfspr   r6,SPRN_HID4
-        rldicl  r5,r6,32,0
-        ori     r5,r5,0x100
-        rldicl  r5,r5,32,0
-        sync
-        mtspr   SPRN_HID4,r5
-        isync
-        slbia
-        isync
-        lbz     r3,0(r3)
-        sync
-        mtspr   SPRN_HID4,r6
-        isync
-        slbia
-        isync
-        mtmsrd  r7
-        sync
-        isync
-        blr
-
-/*
- * Do an IO access in real mode
- */
-_GLOBAL(real_writeb)
-        mfmsr   r7
-        ori     r0,r7,MSR_DR
-        xori    r0,r0,MSR_DR
-        sync
-        mtmsrd  r0
-        sync
-        isync
-        mfspr   r6,SPRN_HID4
-        rldicl  r5,r6,32,0
-        ori     r5,r5,0x100
-        rldicl  r5,r5,32,0
-        sync
-        mtspr   SPRN_HID4,r5
-        isync
-        slbia
-        isync
-        stb     r3,0(r4)
-        sync
-        mtspr   SPRN_HID4,r6
-        isync
-        slbia
-        isync
-        mtmsrd  r7
-        sync
-        isync
-        blr
-#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
-
-/*
- * SCOM access functions for 970 (FX only for now)
- *
- * unsigned long scom970_read(unsigned int address);
- * void scom970_write(unsigned int address, unsigned long value);
- *
- * The address passed in is the 24 bits register address. This code
- * is 970 specific and will not check the status bits, so you should
- * know what you are doing.
- */
-_GLOBAL(scom970_read)
-        /* interrupts off */
-        mfmsr   r4
-        ori     r0,r4,MSR_EE
-        xori    r0,r0,MSR_EE
-        mtmsrd  r0,1
-
-        /* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
-         * (including parity). On current CPUs they must be 0'd,
-         * and finally or in RW bit
-         */
-        rlwinm  r3,r3,8,0,15
-        ori     r3,r3,0x8000
-
-        /* do the actual scom read */
-        sync
-        mtspr   SPRN_SCOMC,r3
-        isync
-        mfspr   r3,SPRN_SCOMD
-        isync
-        mfspr   r0,SPRN_SCOMC
-        isync
-
-        /* XXX: fixup result on some buggy 970's (ouch ! we lost a bit, bah
-         * that's the best we can do). Not implemented yet as we don't use
-         * the scom on any of the bogus CPUs yet, but may have to be done
-         * ultimately
-         */
-
-        /* restore interrupts */
-        mtmsrd  r4,1
-        blr
-
-
-_GLOBAL(scom970_write)
-        /* interrupts off */
-        mfmsr   r5
-        ori     r0,r5,MSR_EE
-        xori    r0,r0,MSR_EE
-        mtmsrd  r0,1
-
-        /* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
-         * (including parity). On current CPUs they must be 0'd.
-         */
-
-        rlwinm  r3,r3,8,0,15
-
-        sync
-        mtspr   SPRN_SCOMD,r4      /* write data */
-        isync
-        mtspr   SPRN_SCOMC,r3      /* write command */
-        isync
-        mfspr   3,SPRN_SCOMC
-        isync
-
-        /* restore interrupts */
-        mtmsrd  r5,1
-        blr
-
-
-/*
- * Create a kernel thread
- *   kernel_thread(fn, arg, flags)
- */
-_GLOBAL(kernel_thread)
-        std     r29,-24(r1)
-        std     r30,-16(r1)
-        stdu    r1,-STACK_FRAME_OVERHEAD(r1)
-        mr      r29,r3
-        mr      r30,r4
-        ori     r3,r5,CLONE_VM  /* flags */
-        oris    r3,r3,(CLONE_UNTRACED>>16)
-        li      r4,0            /* new sp (unused) */
-        li      r0,__NR_clone
-        sc
-        cmpdi   0,r3,0          /* parent or child? */
-        bne     1f              /* return if parent */
-        li      r0,0
-        stdu    r0,-STACK_FRAME_OVERHEAD(r1)
-        ld      r2,8(r29)
-        ld      r29,0(r29)
-        mtlr    r29              /* fn addr in lr */
-        mr      r3,r30          /* load arg and call fn */
-        blrl
-        li      r0,__NR_exit    /* exit after child exits */
-        li      r3,0
-        sc
-1:      addi    r1,r1,STACK_FRAME_OVERHEAD      
-        ld      r29,-24(r1)
-        ld      r30,-16(r1)
-        blr
-
-/*
- * disable_kernel_fp()
- * Disable the FPU.
- */
-_GLOBAL(disable_kernel_fp)
-        mfmsr   r3
-        rldicl  r0,r3,(63-MSR_FP_LG),1
-        rldicl  r3,r0,(MSR_FP_LG+1),0
-        mtmsrd  r3                      /* disable use of fpu now */
-        isync
-        blr
-
-#ifdef CONFIG_ALTIVEC
-
-#if 0 /* this has no callers for now */
-/*
- * disable_kernel_altivec()
- * Disable the VMX.
- */
-_GLOBAL(disable_kernel_altivec)
-        mfmsr   r3
-        rldicl  r0,r3,(63-MSR_VEC_LG),1
-        rldicl  r3,r0,(MSR_VEC_LG+1),0
-        mtmsrd  r3                      /* disable use of VMX now */
-        isync
-        blr
-#endif /* 0 */
-
-/*
- * giveup_altivec(tsk)
- * Disable VMX for the task given as the argument,
- * and save the vector registers in its thread_struct.
- * Enables the VMX for use in the kernel on return.
- */
-_GLOBAL(giveup_altivec)
-        mfmsr   r5
-        oris    r5,r5,MSR_VEC@h
-        mtmsrd  r5                      /* enable use of VMX now */
-        isync
-        cmpdi   0,r3,0
-        beqlr-                          /* if no previous owner, done */
-        addi    r3,r3,THREAD            /* want THREAD of task */
-        ld      r5,PT_REGS(r3)
-        cmpdi   0,r5,0
-        SAVE_32VRS(0,r4,r3)
-        mfvscr  vr0
-        li      r4,THREAD_VSCR
-        stvx    vr0,r4,r3
-        beq     1f
-        ld      r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-        lis     r3,MSR_VEC@h
-        andc    r4,r4,r3                /* disable FP for previous task */
-        std     r4,_MSR-STACK_FRAME_OVERHEAD(r5)
-1:
-#ifndef CONFIG_SMP
-        li      r5,0
-        ld      r4,last_task_used_altivec@got(r2)
-        std     r5,0(r4)
-#endif /* CONFIG_SMP */
-        blr
-
-#endif /* CONFIG_ALTIVEC */
-
-_GLOBAL(__setup_cpu_power3)
-        blr
-
-_GLOBAL(execve)
-        li      r0,__NR_execve
-        sc
-        bnslr
-        neg     r3,r3
-        blr
-
-/* kexec_wait(phys_cpu)
- *
- * wait for the flag to change, indicating this kernel is going away but
- * the slave code for the next one is at addresses 0 to 100.
- *
- * This is used by all slaves.
- *
- * Physical (hardware) cpu id should be in r3.
- */
-_GLOBAL(kexec_wait)
-        bl      1f
-1:      mflr    r5
-        addi    r5,r5,kexec_flag-1b
-
-99:     HMT_LOW
-#ifdef CONFIG_KEXEC             /* use no memory without kexec */
-        lwz     r4,0(r5)
-        cmpwi   0,r4,0
-        bnea    0x60
-#endif
-        b       99b
-
-/* this can be in text because we won't change it until we are
- * running in real anyways
- */
-kexec_flag:
-        .long   0
-
-
-#ifdef CONFIG_KEXEC
-
-/* kexec_smp_wait(void)
- *
- * call with interrupts off
- * note: this is a terminal routine, it does not save lr
- *
- * get phys id from paca
- * set paca id to -1 to say we got here
- * switch to real mode
- * join other cpus in kexec_wait(phys_id)
- */
-_GLOBAL(kexec_smp_wait)
-        lhz     r3,PACAHWCPUID(r13)
-        li      r4,-1
-        sth     r4,PACAHWCPUID(r13)     /* let others know we left */
-        bl      real_mode
-        b       .kexec_wait
-
-/*
- * switch to real mode (turn mmu off)
- * we use the early kernel trick that the hardware ignores bits
- * 0 and 1 (big endian) of the effective address in real mode
- *
- * don't overwrite r3 here, it is live for kexec_wait above.
- */
-real_mode:      /* assume normal blr return */
-1:      li      r9,MSR_RI
-        li      r10,MSR_DR|MSR_IR
-        mflr    r11             /* return address to SRR0 */
-        mfmsr   r12
-        andc    r9,r12,r9
-        andc    r10,r12,r10
-
-        mtmsrd  r9,1
-        mtspr   SPRN_SRR1,r10
-        mtspr   SPRN_SRR0,r11
-        rfid
-
-
-/*
- * kexec_sequence(newstack, start, image, control, clear_all())
- *
- * does the grungy work with stack switching and real mode switches
- * also does simple calls to other code
- */
-
-_GLOBAL(kexec_sequence)
-        mflr    r0
-        std     r0,16(r1)
-
-        /* switch stacks to newstack -- &kexec_stack.stack */
-        stdu    r1,THREAD_SIZE-112(r3)
-        mr      r1,r3
-
-        li      r0,0
-        std     r0,16(r1)
-
-        /* save regs for local vars on new stack.
-         * yes, we won't go back, but ...
-         */
-        std     r31,-8(r1)
-        std     r30,-16(r1)
-        std     r29,-24(r1)
-        std     r28,-32(r1)
-        std     r27,-40(r1)
-        std     r26,-48(r1)
-        std     r25,-56(r1)
-
-        stdu    r1,-112-64(r1)
-
-        /* save args into preserved regs */
-        mr      r31,r3                  /* newstack (both) */
-        mr      r30,r4                  /* start (real) */
-        mr      r29,r5                  /* image (virt) */
-        mr      r28,r6                  /* control, unused */
-        mr      r27,r7                  /* clear_all() fn desc */
-        mr      r26,r8                  /* spare */
-        lhz     r25,PACAHWCPUID(r13)    /* get our phys cpu from paca */
-
-        /* disable interrupts, we are overwriting kernel data next */
-        mfmsr   r3
-        rlwinm  r3,r3,0,17,15
-        mtmsrd  r3,1
-
-        /* copy dest pages, flush whole dest image */
-        mr      r3,r29
-        bl      .kexec_copy_flush       /* (image) */
-
-        /* turn off mmu */
-        bl      real_mode
-
-        /* clear out hardware hash page table and tlb */
-        ld      r5,0(r27)               /* deref function descriptor */
-        mtctr   r5
-        bctrl                           /* ppc_md.hash_clear_all(void); */
-
-/*
- *   kexec image calling is:
- *      the first 0x100 bytes of the entry point are copied to 0
- *
- *      all slaves branch to slave = 0x60 (absolute)
- *              slave(phys_cpu_id);
- *
- *      master goes to start = entry point
- *              start(phys_cpu_id, start, 0);
- *
- *
- *   a wrapper is needed to call existing kernels, here is an approximate
- *   description of one method:
- *
- * v2: (2.6.10)
- *   start will be near the boot_block (maybe 0x100 bytes before it?)
- *   it will have a 0x60, which will b to boot_block, where it will wait
- *   and 0 will store phys into struct boot-block and load r3 from there,
- *   copy kernel 0-0x100 and tell slaves to back down to 0x60 again
- *
- * v1: (2.6.9)
- *    boot block will have all cpus scanning device tree to see if they
- *    are the boot cpu ?????
- *    other device tree differences (prop sizes, va vs pa, etc)...
- */
-
-        /* copy  0x100 bytes starting at start to 0 */
-        li      r3,0
-        mr      r4,r30
-        li      r5,0x100
-        li      r6,0
-        bl      .copy_and_flush /* (dest, src, copy limit, start offset) */
-1:      /* assume normal blr return */
-
-        /* release other cpus to the new kernel secondary start at 0x60 */
-        mflr    r5
-        li      r6,1
-        stw     r6,kexec_flag-1b(5)
-        mr      r3,r25  # my phys cpu
-        mr      r4,r30  # start, aka phys mem offset
-        mtlr    4
-        li      r5,0
-        blr     /* image->start(physid, image->start, 0); */
-#endif /* CONFIG_KEXEC */
diff --git a/arch/ppc64/kernel/ppc_ksyms.c b/arch/ppc64/kernel/ppc_ksyms.c
deleted file mode 100644
index 84006e26342c..000000000000
--- a/arch/ppc64/kernel/ppc_ksyms.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* 
- * c 2001 PPC 64 Team, IBM Corp
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/console.h>
-#include <net/checksum.h>
-
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/hw_irq.h>
-#include <asm/abs_addr.h>
-#include <asm/cacheflush.h>
-
-EXPORT_SYMBOL(strcpy);
-EXPORT_SYMBOL(strncpy);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strncat);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strrchr);
-EXPORT_SYMBOL(strpbrk);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strnlen);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strncmp);
-
-EXPORT_SYMBOL(csum_partial);
-EXPORT_SYMBOL(csum_partial_copy_generic);
-EXPORT_SYMBOL(ip_fast_csum);
-EXPORT_SYMBOL(csum_tcpudp_magic);
-
-EXPORT_SYMBOL(__copy_tofrom_user);
-EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(__strncpy_from_user);
-EXPORT_SYMBOL(__strnlen_user);
-
-EXPORT_SYMBOL(reloc_offset);
-
-EXPORT_SYMBOL(_insb);
-EXPORT_SYMBOL(_outsb);
-EXPORT_SYMBOL(_insw);
-EXPORT_SYMBOL(_outsw);
-EXPORT_SYMBOL(_insl);
-EXPORT_SYMBOL(_outsl);
-EXPORT_SYMBOL(_insw_ns);
-EXPORT_SYMBOL(_outsw_ns);
-EXPORT_SYMBOL(_insl_ns);
-EXPORT_SYMBOL(_outsl_ns);
-
-EXPORT_SYMBOL(kernel_thread);
-
-EXPORT_SYMBOL(giveup_fpu);
-#ifdef CONFIG_ALTIVEC
-EXPORT_SYMBOL(giveup_altivec);
-#endif
-EXPORT_SYMBOL(__flush_icache_range);
-EXPORT_SYMBOL(flush_dcache_range);
-
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memscan);
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memchr);
-
-EXPORT_SYMBOL(timer_interrupt);
-EXPORT_SYMBOL(console_drivers);
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
deleted file mode 100644
index fbad2c360784..000000000000
--- a/arch/ppc64/kernel/prom.c
+++ /dev/null
@@ -1,1954 +0,0 @@
-/*
- * 
- *
- * Procedures for interfacing to Open Firmware.
- *
- * Paul Mackerras       August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- * 
- *  Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
- *    {engebret|bergner}@us.ibm.com 
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG
-
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/stringify.h>
-#include <linux/delay.h>
-#include <linux/initrd.h>
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <linux/module.h>
-
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/lmb.h>
-#include <asm/abs_addr.h>
-#include <asm/page.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/system.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/pci.h>
-#include <asm/iommu.h>
-#include <asm/btext.h>
-#include <asm/sections.h>
-#include <asm/machdep.h>
-#include <asm/pSeries_reconfig.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-struct pci_reg_property {
-        struct pci_address addr;
-        u32 size_hi;
-        u32 size_lo;
-};
-
-struct isa_reg_property {
-        u32 space;
-        u32 address;
-        u32 size;
-};
-
-
-typedef int interpret_func(struct device_node *, unsigned long *,
-                           int, int, int);
-
-extern struct rtas_t rtas;
-extern struct lmb lmb;
-extern unsigned long klimit;
-extern unsigned long memory_limit;
-
-static int __initdata dt_root_addr_cells;
-static int __initdata dt_root_size_cells;
-static int __initdata iommu_is_off;
-int __initdata iommu_force_on;
-unsigned long tce_alloc_start, tce_alloc_end;
-
-typedef u32 cell_t;
-
-#if 0
-static struct boot_param_header *initial_boot_params __initdata;
-#else
-struct boot_param_header *initial_boot_params;
-#endif
-
-static struct device_node *allnodes = NULL;
-
-/* use when traversing tree through the allnext, child, sibling,
- * or parent members of struct device_node.
- */
-static DEFINE_RWLOCK(devtree_lock);
-
-/* export that to outside world */
-struct device_node *of_chosen;
-
-/*
- * Wrapper for allocating memory for various data that needs to be
- * attached to device nodes as they are processed at boot or when
- * added to the device tree later (e.g. DLPAR).  At boot there is
- * already a region reserved so we just increment *mem_start by size;
- * otherwise we call kmalloc.
- */
-static void * prom_alloc(unsigned long size, unsigned long *mem_start)
-{
-        unsigned long tmp;
-
-        if (!mem_start)
-                return kmalloc(size, GFP_KERNEL);
-
-        tmp = *mem_start;
-        *mem_start += size;
-        return (void *)tmp;
-}
-
-/*
- * Find the device_node with a given phandle.
- */
-static struct device_node * find_phandle(phandle ph)
-{
-        struct device_node *np;
-
-        for (np = allnodes; np != 0; np = np->allnext)
-                if (np->linux_phandle == ph)
-                        return np;
-        return NULL;
-}
-
-/*
- * Find the interrupt parent of a node.
- */
-static struct device_node * __devinit intr_parent(struct device_node *p)
-{
-        phandle *parp;
-
-        parp = (phandle *) get_property(p, "interrupt-parent", NULL);
-        if (parp == NULL)
-                return p->parent;
-        return find_phandle(*parp);
-}
-
-/*
- * Find out the size of each entry of the interrupts property
- * for a node.
- */
-int __devinit prom_n_intr_cells(struct device_node *np)
-{
-        struct device_node *p;
-        unsigned int *icp;
-
-        for (p = np; (p = intr_parent(p)) != NULL; ) {
-                icp = (unsigned int *)
-                        get_property(p, "#interrupt-cells", NULL);
-                if (icp != NULL)
-                        return *icp;
-                if (get_property(p, "interrupt-controller", NULL) != NULL
-                    || get_property(p, "interrupt-map", NULL) != NULL) {
-                        printk("oops, node %s doesn't have #interrupt-cells\n",
-                               p->full_name);
-                        return 1;
-                }
-        }
-#ifdef DEBUG_IRQ
-        printk("prom_n_intr_cells failed for %s\n", np->full_name);
-#endif
-        return 1;
-}
-
-/*
- * Map an interrupt from a device up to the platform interrupt
- * descriptor.
- */
-static int __devinit map_interrupt(unsigned int **irq, struct device_node **ictrler,
-                                   struct device_node *np, unsigned int *ints,
-                                   int nintrc)
-{
-        struct device_node *p, *ipar;
-        unsigned int *imap, *imask, *ip;
-        int i, imaplen, match;
-        int newintrc = 0, newaddrc = 0;
-        unsigned int *reg;
-        int naddrc;
-
-        reg = (unsigned int *) get_property(np, "reg", NULL);
-        naddrc = prom_n_addr_cells(np);
-        p = intr_parent(np);
-        while (p != NULL) {
-                if (get_property(p, "interrupt-controller", NULL) != NULL)
-                        /* this node is an interrupt controller, stop here */
-                        break;
-                imap = (unsigned int *)
-                        get_property(p, "interrupt-map", &imaplen);
-                if (imap == NULL) {
-                        p = intr_parent(p);
-                        continue;
-                }
-                imask = (unsigned int *)
-                        get_property(p, "interrupt-map-mask", NULL);
-                if (imask == NULL) {
-                        printk("oops, %s has interrupt-map but no mask\n",
-                               p->full_name);
-                        return 0;
-                }
-                imaplen /= sizeof(unsigned int);
-                match = 0;
-                ipar = NULL;
-                while (imaplen > 0 && !match) {
-                        /* check the child-interrupt field */
-                        match = 1;
-                        for (i = 0; i < naddrc && match; ++i)
-                                match = ((reg[i] ^ imap[i]) & imask[i]) == 0;
-                        for (; i < naddrc + nintrc && match; ++i)
-                                match = ((ints[i-naddrc] ^ imap[i]) & imask[i]) == 0;
-                        imap += naddrc + nintrc;
-                        imaplen -= naddrc + nintrc;
-                        /* grab the interrupt parent */
-                        ipar = find_phandle((phandle) *imap++);
-                        --imaplen;
-                        if (ipar == NULL) {
-                                printk("oops, no int parent %x in map of %s\n",
-                                       imap[-1], p->full_name);
-                                return 0;
-                        }
-                        /* find the parent's # addr and intr cells */
-                        ip = (unsigned int *)
-                                get_property(ipar, "#interrupt-cells", NULL);
-                        if (ip == NULL) {
-                                printk("oops, no #interrupt-cells on %s\n",
-                                       ipar->full_name);
-                                return 0;
-                        }
-                        newintrc = *ip;
-                        ip = (unsigned int *)
-                                get_property(ipar, "#address-cells", NULL);
-                        newaddrc = (ip == NULL)? 0: *ip;
-                        imap += newaddrc + newintrc;
-                        imaplen -= newaddrc + newintrc;
-                }
-                if (imaplen < 0) {
-                        printk("oops, error decoding int-map on %s, len=%d\n",
-                               p->full_name, imaplen);
-                        return 0;
-                }
-                if (!match) {
-#ifdef DEBUG_IRQ
-                        printk("oops, no match in %s int-map for %s\n",
-                               p->full_name, np->full_name);
-#endif
-                        return 0;
-                }
-                p = ipar;
-                naddrc = newaddrc;
-                nintrc = newintrc;
-                ints = imap - nintrc;
-                reg = ints - naddrc;
-        }
-        if (p == NULL) {
-#ifdef DEBUG_IRQ
-                printk("hmmm, int tree for %s doesn't have ctrler\n",
-                       np->full_name);
-#endif
-                return 0;
-        }
-        *irq = ints;
-        *ictrler = p;
-        return nintrc;
-}
-
-static int __devinit finish_node_interrupts(struct device_node *np,
-                                            unsigned long *mem_start,
-                                            int measure_only)
-{
-        unsigned int *ints;
-        int intlen, intrcells, intrcount;
-        int i, j, n;
-        unsigned int *irq, virq;
-        struct device_node *ic;
-
-        ints = (unsigned int *) get_property(np, "interrupts", &intlen);
-        if (ints == NULL)
-                return 0;
-        intrcells = prom_n_intr_cells(np);
-        intlen /= intrcells * sizeof(unsigned int);
-
-        np->intrs = prom_alloc(intlen * sizeof(*(np->intrs)), mem_start);
-        if (!np->intrs)
-                return -ENOMEM;
-
-        if (measure_only)
-                return 0;
-
-        intrcount = 0;
-        for (i = 0; i < intlen; ++i, ints += intrcells) {
-                n = map_interrupt(&irq, &ic, np, ints, intrcells);
-                if (n <= 0)
-                        continue;
-
-                /* don't map IRQ numbers under a cascaded 8259 controller */
-                if (ic && device_is_compatible(ic, "chrp,iic")) {
-                        np->intrs[intrcount].line = irq[0];
-                } else {
-                        virq = virt_irq_create_mapping(irq[0]);
-                        if (virq == NO_IRQ) {
-                                printk(KERN_CRIT "Could not allocate interrupt"
-                                       " number for %s\n", np->full_name);
-                                continue;
-                        }
-                        np->intrs[intrcount].line = irq_offset_up(virq);
-                }
-
-                /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */
-                if (_machine == PLATFORM_POWERMAC && ic && ic->parent) {
-                        char *name = get_property(ic->parent, "name", NULL);
-                        if (name && !strcmp(name, "u3"))
-                                np->intrs[intrcount].line += 128;
-                        else if (!(name && !strcmp(name, "mac-io")))
-                                /* ignore other cascaded controllers, such as
-                                   the k2-sata-root */
-                                break;
-                }
-                np->intrs[intrcount].sense = 1;
-                if (n > 1)
-                        np->intrs[intrcount].sense = irq[1];
-                if (n > 2) {
-                        printk("hmmm, got %d intr cells for %s:", n,
-                               np->full_name);
-                        for (j = 0; j < n; ++j)
-                                printk(" %d", irq[j]);
-                        printk("\n");
-                }
-                ++intrcount;
-        }
-        np->n_intrs = intrcount;
-
-        return 0;
-}
-
-static int __devinit interpret_pci_props(struct device_node *np,
-                                         unsigned long *mem_start,
-                                         int naddrc, int nsizec,
-                                         int measure_only)
-{
-        struct address_range *adr;
-        struct pci_reg_property *pci_addrs;
-        int i, l, n_addrs;
-
-        pci_addrs = (struct pci_reg_property *)
-                get_property(np, "assigned-addresses", &l);
-        if (!pci_addrs)
-                return 0;
-
-        n_addrs = l / sizeof(*pci_addrs);
-
-        adr = prom_alloc(n_addrs * sizeof(*adr), mem_start);
-        if (!adr)
-                return -ENOMEM;
-
-        if (measure_only)
-                return 0;
-
-        np->addrs = adr;
-        np->n_addrs = n_addrs;
-
-        for (i = 0; i < n_addrs; i++) {
-                adr[i].space = pci_addrs[i].addr.a_hi;
-                adr[i].address = pci_addrs[i].addr.a_lo |
-                        ((u64)pci_addrs[i].addr.a_mid << 32);
-                adr[i].size = pci_addrs[i].size_lo;
-        }
-
-        return 0;
-}
-
-static int __init interpret_dbdma_props(struct device_node *np,
-                                        unsigned long *mem_start,
-                                        int naddrc, int nsizec,
-                                        int measure_only)
-{
-        struct reg_property32 *rp;
-        struct address_range *adr;
-        unsigned long base_address;
-        int i, l;
-        struct device_node *db;
-
-        base_address = 0;
-        if (!measure_only) {
-                for (db = np->parent; db != NULL; db = db->parent) {
-                        if (!strcmp(db->type, "dbdma") && db->n_addrs != 0) {
-                                base_address = db->addrs[0].address;
-                                break;
-                        }
-                }
-        }
-
-        rp = (struct reg_property32 *) get_property(np, "reg", &l);
-        if (rp != 0 && l >= sizeof(struct reg_property32)) {
-                i = 0;
-                adr = (struct address_range *) (*mem_start);
-                while ((l -= sizeof(struct reg_property32)) >= 0) {
-                        if (!measure_only) {
-                                adr[i].space = 2;
-                                adr[i].address = rp[i].address + base_address;
-                                adr[i].size = rp[i].size;
-                        }
-                        ++i;
-                }
-                np->addrs = adr;
-                np->n_addrs = i;
-                (*mem_start) += i * sizeof(struct address_range);
-        }
-
-        return 0;
-}
-
-static int __init interpret_macio_props(struct device_node *np,
-                                        unsigned long *mem_start,
-                                        int naddrc, int nsizec,
-                                        int measure_only)
-{
-        struct reg_property32 *rp;
-        struct address_range *adr;
-        unsigned long base_address;
-        int i, l;
-        struct device_node *db;
-
-        base_address = 0;
-        if (!measure_only) {
-                for (db = np->parent; db != NULL; db = db->parent) {
-                        if (!strcmp(db->type, "mac-io") && db->n_addrs != 0) {
-                                base_address = db->addrs[0].address;
-                                break;
-                        }
-                }
-        }
-
-        rp = (struct reg_property32 *) get_property(np, "reg", &l);
-        if (rp != 0 && l >= sizeof(struct reg_property32)) {
-                i = 0;
-                adr = (struct address_range *) (*mem_start);
-                while ((l -= sizeof(struct reg_property32)) >= 0) {
-                        if (!measure_only) {
-                                adr[i].space = 2;
-                                adr[i].address = rp[i].address + base_address;
-                                adr[i].size = rp[i].size;
-                        }
-                        ++i;
-                }
-                np->addrs = adr;
-                np->n_addrs = i;
-                (*mem_start) += i * sizeof(struct address_range);
-        }
-
-        return 0;
-}
-
-static int __init interpret_isa_props(struct device_node *np,
-                                      unsigned long *mem_start,
-                                      int naddrc, int nsizec,
-                                      int measure_only)
-{
-        struct isa_reg_property *rp;
-        struct address_range *adr;
-        int i, l;
-
-        rp = (struct isa_reg_property *) get_property(np, "reg", &l);
-        if (rp != 0 && l >= sizeof(struct isa_reg_property)) {
-                i = 0;
-                adr = (struct address_range *) (*mem_start);
-                while ((l -= sizeof(struct isa_reg_property)) >= 0) {
-                        if (!measure_only) {
-                                adr[i].space = rp[i].space;
-                                adr[i].address = rp[i].address;
-                                adr[i].size = rp[i].size;
-                        }
-                        ++i;
-                }
-                np->addrs = adr;
-                np->n_addrs = i;
-                (*mem_start) += i * sizeof(struct address_range);
-        }
-
-        return 0;
-}
-
-static int __init interpret_root_props(struct device_node *np,
-                                       unsigned long *mem_start,
-                                       int naddrc, int nsizec,
-                                       int measure_only)
-{
-        struct address_range *adr;
-        int i, l;
-        unsigned int *rp;
-        int rpsize = (naddrc + nsizec) * sizeof(unsigned int);
-
-        rp = (unsigned int *) get_property(np, "reg", &l);
-        if (rp != 0 && l >= rpsize) {
-                i = 0;
-                adr = (struct address_range *) (*mem_start);
-                while ((l -= rpsize) >= 0) {
-                        if (!measure_only) {
-                                adr[i].space = 0;
-                                adr[i].address = rp[naddrc - 1];
-                                adr[i].size = rp[naddrc + nsizec - 1];
-                        }
-                        ++i;
-                        rp += naddrc + nsizec;
-                }
-                np->addrs = adr;
-                np->n_addrs = i;
-                (*mem_start) += i * sizeof(struct address_range);
-        }
-
-        return 0;
-}
-
-static int __devinit finish_node(struct device_node *np,
-                                 unsigned long *mem_start,
-                                 interpret_func *ifunc,
-                                 int naddrc, int nsizec,
-                                 int measure_only)
-{
-        struct device_node *child;
-        int *ip, rc = 0;
-
-        /* get the device addresses and interrupts */
-        if (ifunc != NULL)
-                rc = ifunc(np, mem_start, naddrc, nsizec, measure_only);
-        if (rc)
-                goto out;
-
-        rc = finish_node_interrupts(np, mem_start, measure_only);
-        if (rc)
-                goto out;
-
-        /* Look for #address-cells and #size-cells properties. */
-        ip = (int *) get_property(np, "#address-cells", NULL);
-        if (ip != NULL)
-                naddrc = *ip;
-        ip = (int *) get_property(np, "#size-cells", NULL);
-        if (ip != NULL)
-                nsizec = *ip;
-
-        if (!strcmp(np->name, "device-tree") || np->parent == NULL)
-                ifunc = interpret_root_props;
-        else if (np->type == 0)
-                ifunc = NULL;
-        else if (!strcmp(np->type, "pci") || !strcmp(np->type, "vci"))
-                ifunc = interpret_pci_props;
-        else if (!strcmp(np->type, "dbdma"))
-                ifunc = interpret_dbdma_props;
-        else if (!strcmp(np->type, "mac-io") || ifunc == interpret_macio_props)
-                ifunc = interpret_macio_props;
-        else if (!strcmp(np->type, "isa"))
-                ifunc = interpret_isa_props;
-        else if (!strcmp(np->name, "uni-n") || !strcmp(np->name, "u3"))
-                ifunc = interpret_root_props;
-        else if (!((ifunc == interpret_dbdma_props
-                    || ifunc == interpret_macio_props)
-                   && (!strcmp(np->type, "escc")
-                       || !strcmp(np->type, "media-bay"))))
-                ifunc = NULL;
-
-        for (child = np->child; child != NULL; child = child->sibling) {
-                rc = finish_node(child, mem_start, ifunc,
-                                 naddrc, nsizec, measure_only);
-                if (rc)
-                        goto out;
-        }
-out:
-        return rc;
-}
-
-/**
- * finish_device_tree is called once things are running normally
- * (i.e. with text and data mapped to the address they were linked at).
- * It traverses the device tree and fills in some of the additional,
- * fields in each node like {n_}addrs and {n_}intrs, the virt interrupt
- * mapping is also initialized at this point.
- */
-void __init finish_device_tree(void)
-{
-        unsigned long start, end, size = 0;
-
-        DBG(" -> finish_device_tree\n");
-
-        if (ppc64_interrupt_controller == IC_INVALID) {
-                DBG("failed to configure interrupt controller type\n");
-                panic("failed to configure interrupt controller type\n");
-        }
-        
-        /* Initialize virtual IRQ map */
-        virt_irq_init();
-
-        /*
-         * Finish device-tree (pre-parsing some properties etc...)
-         * We do this in 2 passes. One with "measure_only" set, which
-         * will only measure the amount of memory needed, then we can
-         * allocate that memory, and call finish_node again. However,
-         * we must be careful as most routines will fail nowadays when
-         * prom_alloc() returns 0, so we must make sure our first pass
-         * doesn't start at 0. We pre-initialize size to 16 for that
-         * reason and then remove those additional 16 bytes
-         */
-        size = 16;
-        finish_node(allnodes, &size, NULL, 0, 0, 1);
-        size -= 16;
-        end = start = (unsigned long)abs_to_virt(lmb_alloc(size, 128));
-        finish_node(allnodes, &end, NULL, 0, 0, 0);
-        BUG_ON(end != start + size);
-
-        DBG(" <- finish_device_tree\n");
-}
-
-#ifdef DEBUG
-#define printk udbg_printf
-#endif
-
-static inline char *find_flat_dt_string(u32 offset)
-{
-        return ((char *)initial_boot_params) +
-                initial_boot_params->off_dt_strings + offset;
-}
-
-/**
- * This function is used to scan the flattened device-tree, it is
- * used to extract the memory informations at boot before we can
- * unflatten the tree
- */
-int __init of_scan_flat_dt(int (*it)(unsigned long node,
-                                     const char *uname, int depth,
-                                     void *data),
-                           void *data)
-{
-        unsigned long p = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        int rc = 0;
-        int depth = -1;
-
-        do {
-                u32 tag = *((u32 *)p);
-                char *pathp;
-                
-                p += 4;
-                if (tag == OF_DT_END_NODE) {
-                        depth --;
-                        continue;
-                }
-                if (tag == OF_DT_NOP)
-                        continue;
-                if (tag == OF_DT_END)
-                        break;
-                if (tag == OF_DT_PROP) {
-                        u32 sz = *((u32 *)p);
-                        p += 8;
-                        if (initial_boot_params->version < 0x10)
-                                p = _ALIGN(p, sz >= 8 ? 8 : 4);
-                        p += sz;
-                        p = _ALIGN(p, 4);
-                        continue;
-                }
-                if (tag != OF_DT_BEGIN_NODE) {
-                        printk(KERN_WARNING "Invalid tag %x scanning flattened"
-                               " device tree !\n", tag);
-                        return -EINVAL;
-                }
-                depth++;
-                pathp = (char *)p;
-                p = _ALIGN(p + strlen(pathp) + 1, 4);
-                if ((*pathp) == '/') {
-                        char *lp, *np;
-                        for (lp = NULL, np = pathp; *np; np++)
-                                if ((*np) == '/')
-                                        lp = np+1;
-                        if (lp != NULL)
-                                pathp = lp;
-                }
-                rc = it(p, pathp, depth, data);
-                if (rc != 0)
-                        break;          
-        } while(1);
-
-        return rc;
-}
-
-/**
- * This  function can be used within scan_flattened_dt callback to get
- * access to properties
- */
-void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
-                                 unsigned long *size)
-{
-        unsigned long p = node;
-
-        do {
-                u32 tag = *((u32 *)p);
-                u32 sz, noff;
-                const char *nstr;
-
-                p += 4;
-                if (tag == OF_DT_NOP)
-                        continue;
-                if (tag != OF_DT_PROP)
-                        return NULL;
-
-                sz = *((u32 *)p);
-                noff = *((u32 *)(p + 4));
-                p += 8;
-                if (initial_boot_params->version < 0x10)
-                        p = _ALIGN(p, sz >= 8 ? 8 : 4);
-
-                nstr = find_flat_dt_string(noff);
-                if (nstr == NULL) {
-                        printk(KERN_WARNING "Can't find property index"
-                               " name !\n");
-                        return NULL;
-                }
-                if (strcmp(name, nstr) == 0) {
-                        if (size)
-                                *size = sz;
-                        return (void *)p;
-                }
-                p += sz;
-                p = _ALIGN(p, 4);
-        } while(1);
-}
-
-static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
-                                       unsigned long align)
-{
-        void *res;
-
-        *mem = _ALIGN(*mem, align);
-        res = (void *)*mem;
-        *mem += size;
-
-        return res;
-}
-
-static unsigned long __init unflatten_dt_node(unsigned long mem,
-                                              unsigned long *p,
-                                              struct device_node *dad,
-                                              struct device_node ***allnextpp,
-                                              unsigned long fpsize)
-{
-        struct device_node *np;
-        struct property *pp, **prev_pp = NULL;
-        char *pathp;
-        u32 tag;
-        unsigned int l, allocl;
-        int has_name = 0;
-        int new_format = 0;
-
-        tag = *((u32 *)(*p));
-        if (tag != OF_DT_BEGIN_NODE) {
-                printk("Weird tag at start of node: %x\n", tag);
-                return mem;
-        }
-        *p += 4;
-        pathp = (char *)*p;
-        l = allocl = strlen(pathp) + 1;
-        *p = _ALIGN(*p + l, 4);
-
-        /* version 0x10 has a more compact unit name here instead of the full
-         * path. we accumulate the full path size using "fpsize", we'll rebuild
-         * it later. We detect this because the first character of the name is
-         * not '/'.
-         */
-        if ((*pathp) != '/') {
-                new_format = 1;
-                if (fpsize == 0) {
-                        /* root node: special case. fpsize accounts for path
-                         * plus terminating zero. root node only has '/', so
-                         * fpsize should be 2, but we want to avoid the first
-                         * level nodes to have two '/' so we use fpsize 1 here
-                         */
-                        fpsize = 1;
-                        allocl = 2;
-                } else {
-                        /* account for '/' and path size minus terminal 0
-                         * already in 'l'
-                         */
-                        fpsize += l;
-                        allocl = fpsize;
-                }
-        }
-
-
-        np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
-                                __alignof__(struct device_node));
-        if (allnextpp) {
-                memset(np, 0, sizeof(*np));
-                np->full_name = ((char*)np) + sizeof(struct device_node);
-                if (new_format) {
-                        char *p = np->full_name;
-                        /* rebuild full path for new format */
-                        if (dad && dad->parent) {
-                                strcpy(p, dad->full_name);
-#ifdef DEBUG
-                                if ((strlen(p) + l + 1) != allocl) {
-                                        DBG("%s: p: %d, l: %d, a: %d\n",
-                                            pathp, strlen(p), l, allocl);
-                                }
-#endif
-                                p += strlen(p);
-                        }
-                        *(p++) = '/';
-                        memcpy(p, pathp, l);
-                } else
-                        memcpy(np->full_name, pathp, l);
-                prev_pp = &np->properties;
-                **allnextpp = np;
-                *allnextpp = &np->allnext;
-                if (dad != NULL) {
-                        np->parent = dad;
-                        /* we temporarily use the next field as `last_child'*/
-                        if (dad->next == 0)
-                                dad->child = np;
-                        else
-                                dad->next->sibling = np;
-                        dad->next = np;
-                }
-                kref_init(&np->kref);
-        }
-        while(1) {
-                u32 sz, noff;
-                char *pname;
-
-                tag = *((u32 *)(*p));
-                if (tag == OF_DT_NOP) {
-                        *p += 4;
-                        continue;
-                }
-                if (tag != OF_DT_PROP)
-                        break;
-                *p += 4;
-                sz = *((u32 *)(*p));
-                noff = *((u32 *)((*p) + 4));
-                *p += 8;
-                if (initial_boot_params->version < 0x10)
-                        *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
-
-                pname = find_flat_dt_string(noff);
-                if (pname == NULL) {
-                        printk("Can't find property name in list !\n");
-                        break;
-                }
-                if (strcmp(pname, "name") == 0)
-                        has_name = 1;
-                l = strlen(pname) + 1;
-                pp = unflatten_dt_alloc(&mem, sizeof(struct property),
-                                        __alignof__(struct property));
-                if (allnextpp) {
-                        if (strcmp(pname, "linux,phandle") == 0) {
-                                np->node = *((u32 *)*p);
-                                if (np->linux_phandle == 0)
-                                        np->linux_phandle = np->node;
-                        }
-                        if (strcmp(pname, "ibm,phandle") == 0)
-                                np->linux_phandle = *((u32 *)*p);
-                        pp->name = pname;
-                        pp->length = sz;
-                        pp->value = (void *)*p;
-                        *prev_pp = pp;
-                        prev_pp = &pp->next;
-                }
-                *p = _ALIGN((*p) + sz, 4);
-        }
-        /* with version 0x10 we may not have the name property, recreate
-         * it here from the unit name if absent
-         */
-        if (!has_name) {
-                char *p = pathp, *ps = pathp, *pa = NULL;
-                int sz;
-
-                while (*p) {
-                        if ((*p) == '@')
-                                pa = p;
-                        if ((*p) == '/')
-                                ps = p + 1;
-                        p++;
-                }
-                if (pa < ps)
-                        pa = p;
-                sz = (pa - ps) + 1;
-                pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
-                                        __alignof__(struct property));
-                if (allnextpp) {
-                        pp->name = "name";
-                        pp->length = sz;
-                        pp->value = (unsigned char *)(pp + 1);
-                        *prev_pp = pp;
-                        prev_pp = &pp->next;
-                        memcpy(pp->value, ps, sz - 1);
-                        ((char *)pp->value)[sz - 1] = 0;
-                        DBG("fixed up name for %s -> %s\n", pathp, pp->value);
-                }
-        }
-        if (allnextpp) {
-                *prev_pp = NULL;
-                np->name = get_property(np, "name", NULL);
-                np->type = get_property(np, "device_type", NULL);
-
-                if (!np->name)
-                        np->name = "<NULL>";
-                if (!np->type)
-                        np->type = "<NULL>";
-        }
-        while (tag == OF_DT_BEGIN_NODE) {
-                mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
-                tag = *((u32 *)(*p));
-        }
-        if (tag != OF_DT_END_NODE) {
-                printk("Weird tag at end of node: %x\n", tag);
-                return mem;
-        }
-        *p += 4;
-        return mem;
-}
-
-
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-        unsigned long start, mem, size;
-        struct device_node **allnextp = &allnodes;
-        char *p = NULL;
-        int l = 0;
-
-        DBG(" -> unflatten_device_tree()\n");
-
-        /* First pass, scan for size */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-        size = (size | 3) + 1;
-
-        DBG("  size is %lx, allocating...\n", size);
-
-        /* Allocate memory for the expanded device tree */
-        mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-        if (!mem) {
-                DBG("Couldn't allocate memory with lmb_alloc()!\n");
-                panic("Couldn't allocate memory with lmb_alloc()!\n");
-        }
-        mem = (unsigned long)abs_to_virt(mem);
-
-        ((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-        DBG("  unflattening...\n", mem);
-
-        /* Second pass, do actual unflattening */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-        if (*((u32 *)start) != OF_DT_END)
-                printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
-        if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-                printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-                       ((u32 *)mem)[size / 4] );
-        *allnextp = NULL;
-
-        /* Get pointer to OF "/chosen" node for use everywhere */
-        of_chosen = of_find_node_by_path("/chosen");
-
-        /* Retreive command line */
-        if (of_chosen != NULL) {
-                p = (char *)get_property(of_chosen, "bootargs", &l);
-                if (p != NULL && l > 0)
-                        strlcpy(cmd_line, p, min(l, COMMAND_LINE_SIZE));
-        }
-#ifdef CONFIG_CMDLINE
-        if (l == 0 || (l == 1 && (*p) == 0))
-                strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
-#endif /* CONFIG_CMDLINE */
-
-        DBG("Command line is: %s\n", cmd_line);
-
-        DBG(" <- unflatten_device_tree()\n");
-}
-
-
-static int __init early_init_dt_scan_cpus(unsigned long node,
-                                          const char *uname, int depth, void *data)
-{
-        char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-        u32 *prop;
-        unsigned long size;
-
-        /* We are scanning "cpu" nodes only */
-        if (type == NULL || strcmp(type, "cpu") != 0)
-                return 0;
-
-        if (initial_boot_params && initial_boot_params->version >= 2) {
-                /* version 2 of the kexec param format adds the phys cpuid
-                 * of booted proc.
-                 */
-                boot_cpuid_phys = initial_boot_params->boot_cpuid_phys;
-                boot_cpuid = 0;
-        } else {
-                /* Check if it's the boot-cpu, set it's hw index in paca now */
-                if (of_get_flat_dt_prop(node, "linux,boot-cpu", NULL)
-                    != NULL) {
-                        u32 *prop = of_get_flat_dt_prop(node, "reg", NULL);
-                        set_hard_smp_processor_id(0, prop == NULL ? 0 : *prop);
-                        boot_cpuid_phys = get_hard_smp_processor_id(0);
-                }
-        }
-
-#ifdef CONFIG_ALTIVEC
-        /* Check if we have a VMX and eventually update CPU features */
-        prop = (u32 *)of_get_flat_dt_prop(node, "ibm,vmx", NULL);
-        if (prop && (*prop) > 0) {
-                cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
-                cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
-        }
-
-        /* Same goes for Apple's "altivec" property */
-        prop = (u32 *)of_get_flat_dt_prop(node, "altivec", NULL);
-        if (prop) {
-                cur_cpu_spec->cpu_features |= CPU_FTR_ALTIVEC;
-                cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC;
-        }
-#endif /* CONFIG_ALTIVEC */
-
-        /*
-         * Check for an SMT capable CPU and set the CPU feature. We do
-         * this by looking at the size of the ibm,ppc-interrupt-server#s
-         * property
-         */
-        prop = (u32 *)of_get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s",
-                                       &size);
-        cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT;
-        if (prop && ((size / sizeof(u32)) > 1))
-                cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
-
-        return 0;
-}
-
-static int __init early_init_dt_scan_chosen(unsigned long node,
-                                            const char *uname, int depth, void *data)
-{
-        u32 *prop;
-        u64 *prop64;
-
-        DBG("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
-
-        if (depth != 1 || strcmp(uname, "chosen") != 0)
-                return 0;
-
-        /* get platform type */
-        prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL);
-        if (prop == NULL)
-                return 0;
-        _machine = *prop;
-
-        /* check if iommu is forced on or off */
-        if (of_get_flat_dt_prop(node, "linux,iommu-off", NULL) != NULL)
-                iommu_is_off = 1;
-        if (of_get_flat_dt_prop(node, "linux,iommu-force-on", NULL) != NULL)
-                iommu_force_on = 1;
-
-        prop64 = (u64*)of_get_flat_dt_prop(node, "linux,memory-limit", NULL);
-        if (prop64)
-                memory_limit = *prop64;
-
-        prop64 = (u64*)of_get_flat_dt_prop(node, "linux,tce-alloc-start",NULL);
-        if (prop64)
-                tce_alloc_start = *prop64;
-
-        prop64 = (u64*)of_get_flat_dt_prop(node, "linux,tce-alloc-end", NULL);
-        if (prop64)
-                tce_alloc_end = *prop64;
-
-#ifdef CONFIG_PPC_RTAS
-        /* To help early debugging via the front panel, we retreive a minimal
-         * set of RTAS infos now if available
-         */
-        {
-                u64 *basep, *entryp;
-
-                basep = (u64*)of_get_flat_dt_prop(node,
-                                                  "linux,rtas-base", NULL);
-                entryp = (u64*)of_get_flat_dt_prop(node,
-                                                   "linux,rtas-entry", NULL);
-                prop = (u32*)of_get_flat_dt_prop(node,
-                                                 "linux,rtas-size", NULL);
-                if (basep && entryp && prop) {
-                        rtas.base = *basep;
-                        rtas.entry = *entryp;
-                        rtas.size = *prop;
-                }
-        }
-#endif /* CONFIG_PPC_RTAS */
-
-        /* break now */
-        return 1;
-}
-
-static int __init early_init_dt_scan_root(unsigned long node,
-                                          const char *uname, int depth, void *data)
-{
-        u32 *prop;
-
-        if (depth != 0)
-                return 0;
-
-        prop = (u32 *)of_get_flat_dt_prop(node, "#size-cells", NULL);
-        dt_root_size_cells = (prop == NULL) ? 1 : *prop;
-        DBG("dt_root_size_cells = %x\n", dt_root_size_cells);
-
-        prop = (u32 *)of_get_flat_dt_prop(node, "#address-cells", NULL);
-        dt_root_addr_cells = (prop == NULL) ? 2 : *prop;
-        DBG("dt_root_addr_cells = %x\n", dt_root_addr_cells);
-        
-        /* break now */
-        return 1;
-}
-
-static unsigned long __init dt_mem_next_cell(int s, cell_t **cellp)
-{
-        cell_t *p = *cellp;
-        unsigned long r = 0;
-
-        /* Ignore more than 2 cells */
-        while (s > 2) {
-                p++;
-                s--;
-        }
-        while (s) {
-                r <<= 32;
-                r |= *(p++);
-                s--;
-        }
-
-        *cellp = p;
-        return r;
-}
-
-
-static int __init early_init_dt_scan_memory(unsigned long node,
-                                            const char *uname, int depth, void *data)
-{
-        char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-        cell_t *reg, *endp;
-        unsigned long l;
-
-        /* We are scanning "memory" nodes only */
-        if (type == NULL || strcmp(type, "memory") != 0)
-                return 0;
-
-        reg = (cell_t *)of_get_flat_dt_prop(node, "reg", &l);
-        if (reg == NULL)
-                return 0;
-
-        endp = reg + (l / sizeof(cell_t));
-
-        DBG("memory scan node %s ..., reg size %ld, data: %x %x %x %x, ...\n",
-            uname, l, reg[0], reg[1], reg[2], reg[3]);
-
-        while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
-                unsigned long base, size;
-
-                base = dt_mem_next_cell(dt_root_addr_cells, &reg);
-                size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-                if (size == 0)
-                        continue;
-                DBG(" - %lx ,  %lx\n", base, size);
-                if (iommu_is_off) {
-                        if (base >= 0x80000000ul)
-                                continue;
-                        if ((base + size) > 0x80000000ul)
-                                size = 0x80000000ul - base;
-                }
-                lmb_add(base, size);
-        }
-        return 0;
-}
-
-static void __init early_reserve_mem(void)
-{
-        u64 base, size;
-        u64 *reserve_map = (u64 *)(((unsigned long)initial_boot_params) +
-                                   initial_boot_params->off_mem_rsvmap);
-        while (1) {
-                base = *(reserve_map++);
-                size = *(reserve_map++);
-                if (size == 0)
-                        break;
-                DBG("reserving: %lx -> %lx\n", base, size);
-                lmb_reserve(base, size);
-        }
-
-#if 0
-        DBG("memory reserved, lmbs :\n");
-        lmb_dump_all();
-#endif
-}
-
-void __init early_init_devtree(void *params)
-{
-        DBG(" -> early_init_devtree()\n");
-
-        /* Setup flat device-tree pointer */
-        initial_boot_params = params;
-
-        /* Retreive various informations from the /chosen node of the
-         * device-tree, including the platform type, initrd location and
-         * size, TCE reserve, and more ...
-         */
-        of_scan_flat_dt(early_init_dt_scan_chosen, NULL);
-
-        /* Scan memory nodes and rebuild LMBs */
-        lmb_init();
-        of_scan_flat_dt(early_init_dt_scan_root, NULL);
-        of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-        lmb_enforce_memory_limit(memory_limit);
-        lmb_analyze();
-        lmb_reserve(0, __pa(klimit));
-
-        /* Reserve LMB regions used by kernel, initrd, dt, etc... */
-        early_reserve_mem();
-
-        DBG("Scanning CPUs ...\n");
-
-        /* Retreive hash table size from flattened tree plus other
-         * CPU related informations (altivec support, boot CPU ID, ...)
-         */
-        of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
-
-        DBG(" <- early_init_devtree()\n");
-}
-
-#undef printk
-
-int
-prom_n_addr_cells(struct device_node* np)
-{
-        int* ip;
-        do {
-                if (np->parent)
-                        np = np->parent;
-                ip = (int *) get_property(np, "#address-cells", NULL);
-                if (ip != NULL)
-                        return *ip;
-        } while (np->parent);
-        /* No #address-cells property for the root node, default to 1 */
-        return 1;
-}
-
-int
-prom_n_size_cells(struct device_node* np)
-{
-        int* ip;
-        do {
-                if (np->parent)
-                        np = np->parent;
-                ip = (int *) get_property(np, "#size-cells", NULL);
-                if (ip != NULL)
-                        return *ip;
-        } while (np->parent);
-        /* No #size-cells property for the root node, default to 1 */
-        return 1;
-}
-
-/**
- * Work out the sense (active-low level / active-high edge)
- * of each interrupt from the device tree.
- */
-void __init prom_get_irq_senses(unsigned char *senses, int off, int max)
-{
-        struct device_node *np;
-        int i, j;
-
-        /* default to level-triggered */
-        memset(senses, 1, max - off);
-
-        for (np = allnodes; np != 0; np = np->allnext) {
-                for (j = 0; j < np->n_intrs; j++) {
-                        i = np->intrs[j].line;
-                        if (i >= off && i < max)
-                                senses[i-off] = np->intrs[j].sense ?
-                                        IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE :
-                                        IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE;
-                }
-        }
-}
-
-/**
- * Construct and return a list of the device_nodes with a given name.
- */
-struct device_node *
-find_devices(const char *name)
-{
-        struct device_node *head, **prevp, *np;
-
-        prevp = &head;
-        for (np = allnodes; np != 0; np = np->allnext) {
-                if (np->name != 0 && strcasecmp(np->name, name) == 0) {
-                        *prevp = np;
-                        prevp = &np->next;
-                }
-        }
-        *prevp = NULL;
-        return head;
-}
-EXPORT_SYMBOL(find_devices);
-
-/**
- * Construct and return a list of the device_nodes with a given type.
- */
-struct device_node *
-find_type_devices(const char *type)
-{
-        struct device_node *head, **prevp, *np;
-
-        prevp = &head;
-        for (np = allnodes; np != 0; np = np->allnext) {
-                if (np->type != 0 && strcasecmp(np->type, type) == 0) {
-                        *prevp = np;
-                        prevp = &np->next;
-                }
-        }
-        *prevp = NULL;
-        return head;
-}
-EXPORT_SYMBOL(find_type_devices);
-
-/**
- * Returns all nodes linked together
- */
-struct device_node *
-find_all_nodes(void)
-{
-        struct device_node *head, **prevp, *np;
-
-        prevp = &head;
-        for (np = allnodes; np != 0; np = np->allnext) {
-                *prevp = np;
-                prevp = &np->next;
-        }
-        *prevp = NULL;
-        return head;
-}
-EXPORT_SYMBOL(find_all_nodes);
-
-/** Checks if the given "compat" string matches one of the strings in
- * the device's "compatible" property
- */
-int
-device_is_compatible(struct device_node *device, const char *compat)
-{
-        const char* cp;
-        int cplen, l;
-
-        cp = (char *) get_property(device, "compatible", &cplen);
-        if (cp == NULL)
-                return 0;
-        while (cplen > 0) {
-                if (strncasecmp(cp, compat, strlen(compat)) == 0)
-                        return 1;
-                l = strlen(cp) + 1;
-                cp += l;
-                cplen -= l;
-        }
-
-        return 0;
-}
-EXPORT_SYMBOL(device_is_compatible);
-
-
-/**
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int
-machine_is_compatible(const char *compat)
-{
-        struct device_node *root;
-        int rc = 0;
-
-        root = of_find_node_by_path("/");
-        if (root) {
-                rc = device_is_compatible(root, compat);
-                of_node_put(root);
-        }
-        return rc;
-}
-EXPORT_SYMBOL(machine_is_compatible);
-
-/**
- * Construct and return a list of the device_nodes with a given type
- * and compatible property.
- */
-struct device_node *
-find_compatible_devices(const char *type, const char *compat)
-{
-        struct device_node *head, **prevp, *np;
-
-        prevp = &head;
-        for (np = allnodes; np != 0; np = np->allnext) {
-                if (type != NULL
-                    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
-                        continue;
-                if (device_is_compatible(np, compat)) {
-                        *prevp = np;
-                        prevp = &np->next;
-                }
-        }
-        *prevp = NULL;
-        return head;
-}
-EXPORT_SYMBOL(find_compatible_devices);
-
-/**
- * Find the device_node with a given full_name.
- */
-struct device_node *
-find_path_device(const char *path)
-{
-        struct device_node *np;
-
-        for (np = allnodes; np != 0; np = np->allnext)
-                if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
-                        return np;
-        return NULL;
-}
-EXPORT_SYMBOL(find_path_device);
-
-/*******
- *
- * New implementation of the OF "find" APIs, return a refcounted
- * object, call of_node_put() when done.  The device tree and list
- * are protected by a rw_lock.
- *
- * Note that property management will need some locking as well,
- * this isn't dealt with yet.
- *
- *******/
-
-/**
- *      of_find_node_by_name - Find a node by its "name" property
- *      @from:  The node to start searching from or NULL, the node
- *              you pass will not be searched, only the next one
- *              will; typically, you pass what the previous call
- *              returned. of_node_put() will be called on it
- *      @name:  The name string to match against
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_name(struct device_node *from,
-        const char *name)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        np = from ? from->allnext : allnodes;
-        for (; np != 0; np = np->allnext)
-                if (np->name != 0 && strcasecmp(np->name, name) == 0
-                    && of_node_get(np))
-                        break;
-        if (from)
-                of_node_put(from);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_name);
-
-/**
- *      of_find_node_by_type - Find a node by its "device_type" property
- *      @from:  The node to start searching from or NULL, the node
- *              you pass will not be searched, only the next one
- *              will; typically, you pass what the previous call
- *              returned. of_node_put() will be called on it
- *      @name:  The type string to match against
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_type(struct device_node *from,
-        const char *type)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        np = from ? from->allnext : allnodes;
-        for (; np != 0; np = np->allnext)
-                if (np->type != 0 && strcasecmp(np->type, type) == 0
-                    && of_node_get(np))
-                        break;
-        if (from)
-                of_node_put(from);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_type);
-
-/**
- *      of_find_compatible_node - Find a node based on type and one of the
- *                                tokens in its "compatible" property
- *      @from:          The node to start searching from or NULL, the node
- *                      you pass will not be searched, only the next one
- *                      will; typically, you pass what the previous call
- *                      returned. of_node_put() will be called on it
- *      @type:          The type string to match "device_type" or NULL to ignore
- *      @compatible:    The string to match to one of the tokens in the device
- *                      "compatible" list.
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_compatible_node(struct device_node *from,
-        const char *type, const char *compatible)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        np = from ? from->allnext : allnodes;
-        for (; np != 0; np = np->allnext) {
-                if (type != NULL
-                    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
-                        continue;
-                if (device_is_compatible(np, compatible) && of_node_get(np))
-                        break;
-        }
-        if (from)
-                of_node_put(from);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_compatible_node);
-
-/**
- *      of_find_node_by_path - Find a node matching a full OF path
- *      @path:  The full path to match
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_path(const char *path)
-{
-        struct device_node *np = allnodes;
-
-        read_lock(&devtree_lock);
-        for (; np != 0; np = np->allnext) {
-                if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0
-                    && of_node_get(np))
-                        break;
-        }
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_path);
-
-/**
- *      of_find_node_by_phandle - Find a node given a phandle
- *      @handle:        phandle of the node to find
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_phandle(phandle handle)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        for (np = allnodes; np != 0; np = np->allnext)
-                if (np->linux_phandle == handle)
-                        break;
-        if (np)
-                of_node_get(np);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_node_by_phandle);
-
-/**
- *      of_find_all_nodes - Get next node in global list
- *      @prev:  Previous node or NULL to start iteration
- *              of_node_put() will be called on it
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_find_all_nodes(struct device_node *prev)
-{
-        struct device_node *np;
-
-        read_lock(&devtree_lock);
-        np = prev ? prev->allnext : allnodes;
-        for (; np != 0; np = np->allnext)
-                if (of_node_get(np))
-                        break;
-        if (prev)
-                of_node_put(prev);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_find_all_nodes);
-
-/**
- *      of_get_parent - Get a node's parent if any
- *      @node:  Node to get parent
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_get_parent(const struct device_node *node)
-{
-        struct device_node *np;
-
-        if (!node)
-                return NULL;
-
-        read_lock(&devtree_lock);
-        np = of_node_get(node->parent);
-        read_unlock(&devtree_lock);
-        return np;
-}
-EXPORT_SYMBOL(of_get_parent);
-
-/**
- *      of_get_next_child - Iterate a node childs
- *      @node:  parent node
- *      @prev:  previous child of the parent node, or NULL to get first
- *
- *      Returns a node pointer with refcount incremented, use
- *      of_node_put() on it when done.
- */
-struct device_node *of_get_next_child(const struct device_node *node,
-        struct device_node *prev)
-{
-        struct device_node *next;
-
-        read_lock(&devtree_lock);
-        next = prev ? prev->sibling : node->child;
-        for (; next != 0; next = next->sibling)
-                if (of_node_get(next))
-                        break;
-        if (prev)
-                of_node_put(prev);
-        read_unlock(&devtree_lock);
-        return next;
-}
-EXPORT_SYMBOL(of_get_next_child);
-
-/**
- *      of_node_get - Increment refcount of a node
- *      @node:  Node to inc refcount, NULL is supported to
- *              simplify writing of callers
- *
- *      Returns node.
- */
-struct device_node *of_node_get(struct device_node *node)
-{
-        if (node)
-                kref_get(&node->kref);
-        return node;
-}
-EXPORT_SYMBOL(of_node_get);
-
-static inline struct device_node * kref_to_device_node(struct kref *kref)
-{
-        return container_of(kref, struct device_node, kref);
-}
-
-/**
- *      of_node_release - release a dynamically allocated node
- *      @kref:  kref element of the node to be released
- *
- *      In of_node_put() this function is passed to kref_put()
- *      as the destructor.
- */
-static void of_node_release(struct kref *kref)
-{
-        struct device_node *node = kref_to_device_node(kref);
-        struct property *prop = node->properties;
-
-        if (!OF_IS_DYNAMIC(node))
-                return;
-        while (prop) {
-                struct property *next = prop->next;
-                kfree(prop->name);
-                kfree(prop->value);
-                kfree(prop);
-                prop = next;
-        }
-        kfree(node->intrs);
-        kfree(node->addrs);
-        kfree(node->full_name);
-        kfree(node->data);
-        kfree(node);
-}
-
-/**
- *      of_node_put - Decrement refcount of a node
- *      @node:  Node to dec refcount, NULL is supported to
- *              simplify writing of callers
- *
- */
-void of_node_put(struct device_node *node)
-{
-        if (node)
-                kref_put(&node->kref, of_node_release);
-}
-EXPORT_SYMBOL(of_node_put);
-
-/*
- * Fix up the uninitialized fields in a new device node:
- * name, type, n_addrs, addrs, n_intrs, intrs, and pci-specific fields
- *
- * A lot of boot-time code is duplicated here, because functions such
- * as finish_node_interrupts, interpret_pci_props, etc. cannot use the
- * slab allocator.
- *
- * This should probably be split up into smaller chunks.
- */
-
-static int of_finish_dynamic_node(struct device_node *node,
-                                  unsigned long *unused1, int unused2,
-                                  int unused3, int unused4)
-{
-        struct device_node *parent = of_get_parent(node);
-        int err = 0;
-        phandle *ibm_phandle;
-
-        node->name = get_property(node, "name", NULL);
-        node->type = get_property(node, "device_type", NULL);
-
-        if (!parent) {
-                err = -ENODEV;
-                goto out;
-        }
-
-        /* We don't support that function on PowerMac, at least
-         * not yet
-         */
-        if (_machine == PLATFORM_POWERMAC)
-                return -ENODEV;
-
-        /* fix up new node's linux_phandle field */
-        if ((ibm_phandle = (unsigned int *)get_property(node, "ibm,phandle", NULL)))
-                node->linux_phandle = *ibm_phandle;
-
-out:
-        of_node_put(parent);
-        return err;
-}
-
-/*
- * Plug a device node into the tree and global list.
- */
-void of_attach_node(struct device_node *np)
-{
-        write_lock(&devtree_lock);
-        np->sibling = np->parent->child;
-        np->allnext = allnodes;
-        np->parent->child = np;
-        allnodes = np;
-        write_unlock(&devtree_lock);
-}
-
-/*
- * "Unplug" a node from the device tree.  The caller must hold
- * a reference to the node.  The memory associated with the node
- * is not freed until its refcount goes to zero.
- */
-void of_detach_node(const struct device_node *np)
-{
-        struct device_node *parent;
-
-        write_lock(&devtree_lock);
-
-        parent = np->parent;
-
-        if (allnodes == np)
-                allnodes = np->allnext;
-        else {
-                struct device_node *prev;
-                for (prev = allnodes;
-                     prev->allnext != np;
-                     prev = prev->allnext)
-                        ;
-                prev->allnext = np->allnext;
-        }
-
-        if (parent->child == np)
-                parent->child = np->sibling;
-        else {
-                struct device_node *prevsib;
-                for (prevsib = np->parent->child;
-                     prevsib->sibling != np;
-                     prevsib = prevsib->sibling)
-                        ;
-                prevsib->sibling = np->sibling;
-        }
-
-        write_unlock(&devtree_lock);
-}
-
-static int prom_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
-{
-        int err;
-
-        switch (action) {
-        case PSERIES_RECONFIG_ADD:
-                err = finish_node(node, NULL, of_finish_dynamic_node, 0, 0, 0);
-                if (err < 0) {
-                        printk(KERN_ERR "finish_node returned %d\n", err);
-                        err = NOTIFY_BAD;
-                }
-                break;
-        default:
-                err = NOTIFY_DONE;
-                break;
-        }
-        return err;
-}
-
-static struct notifier_block prom_reconfig_nb = {
-        .notifier_call = prom_reconfig_notifier,
-        .priority = 10, /* This one needs to run first */
-};
-
-static int __init prom_reconfig_setup(void)
-{
-        return pSeries_reconfig_notifier_register(&prom_reconfig_nb);
-}
-__initcall(prom_reconfig_setup);
-
-/*
- * Find a property with a given name for a given node
- * and return the value.
- */
-unsigned char *
-get_property(struct device_node *np, const char *name, int *lenp)
-{
-        struct property *pp;
-
-        for (pp = np->properties; pp != 0; pp = pp->next)
-                if (strcmp(pp->name, name) == 0) {
-                        if (lenp != 0)
-                                *lenp = pp->length;
-                        return pp->value;
-                }
-        return NULL;
-}
-EXPORT_SYMBOL(get_property);
-
-/*
- * Add a property to a node.
- */
-int
-prom_add_property(struct device_node* np, struct property* prop)
-{
-        struct property **next;
-
-        prop->next = NULL;      
-        write_lock(&devtree_lock);
-        next = &np->properties;
-        while (*next) {
-                if (strcmp(prop->name, (*next)->name) == 0) {
-                        /* duplicate ! don't insert it */
-                        write_unlock(&devtree_lock);
-                        return -1;
-                }
-                next = &(*next)->next;
-        }
-        *next = prop;
-        write_unlock(&devtree_lock);
-
-        /* try to add to proc as well if it was initialized */
-        if (np->pde)
-                proc_device_tree_add_prop(np->pde, prop);
-
-        return 0;
-}
-
-#if 0
-void
-print_properties(struct device_node *np)
-{
-        struct property *pp;
-        char *cp;
-        int i, n;
-
-        for (pp = np->properties; pp != 0; pp = pp->next) {
-                printk(KERN_INFO "%s", pp->name);
-                for (i = strlen(pp->name); i < 16; ++i)
-                        printk(" ");
-                cp = (char *) pp->value;
-                for (i = pp->length; i > 0; --i, ++cp)
-                        if ((i > 1 && (*cp < 0x20 || *cp > 0x7e))
-                            || (i == 1 && *cp != 0))
-                                break;
-                if (i == 0 && pp->length > 1) {
-                        /* looks like a string */
-                        printk(" %s\n", (char *) pp->value);
-                } else {
-                        /* dump it in hex */
-                        n = pp->length;
-                        if (n > 64)
-                                n = 64;
-                        if (pp->length % 4 == 0) {
-                                unsigned int *p = (unsigned int *) pp->value;
-
-                                n /= 4;
-                                for (i = 0; i < n; ++i) {
-                                        if (i != 0 && (i % 4) == 0)
-                                                printk("\n                ");
-                                        printk(" %08x", *p++);
-                                }
-                        } else {
-                                unsigned char *bp = pp->value;
-
-                                for (i = 0; i < n; ++i) {
-                                        if (i != 0 && (i % 16) == 0)
-                                                printk("\n                ");
-                                        printk(" %02x", *bp++);
-                                }
-                        }
-                        printk("\n");
-                        if (pp->length > 64)
-                                printk("                 ... (length = %d)\n",
-                                       pp->length);
-                }
-        }
-}
-#endif
-
-
-
-
-
-
-
-
-
-
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
deleted file mode 100644
index 6375f40b23db..000000000000
--- a/arch/ppc64/kernel/prom_init.c
+++ /dev/null
@@ -1,2051 +0,0 @@
-/*
- * 
- *
- * Procedures for interfacing to Open Firmware.
- *
- * Paul Mackerras       August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- * 
- *  Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
- *    {engebret|bergner}@us.ibm.com 
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#undef DEBUG_PROM
-
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/proc_fs.h>
-#include <linux/stringify.h>
-#include <linux/delay.h>
-#include <linux/initrd.h>
-#include <linux/bitops.h>
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/abs_addr.h>
-#include <asm/page.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/system.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/pci.h>
-#include <asm/iommu.h>
-#include <asm/btext.h>
-#include <asm/sections.h>
-#include <asm/machdep.h>
-
-#ifdef CONFIG_LOGO_LINUX_CLUT224
-#include <linux/linux_logo.h>
-extern const struct linux_logo logo_linux_clut224;
-#endif
-
-/*
- * Properties whose value is longer than this get excluded from our
- * copy of the device tree. This value does need to be big enough to
- * ensure that we don't lose things like the interrupt-map property
- * on a PCI-PCI bridge.
- */
-#define MAX_PROPERTY_LENGTH     (1UL * 1024 * 1024)
-
-/*
- * Eventually bump that one up
- */
-#define DEVTREE_CHUNK_SIZE      0x100000
-
-/*
- * This is the size of the local memory reserve map that gets copied
- * into the boot params passed to the kernel. That size is totally
- * flexible as the kernel just reads the list until it encounters an
- * entry with size 0, so it can be changed without breaking binary
- * compatibility
- */
-#define MEM_RESERVE_MAP_SIZE    8
-
-/*
- * prom_init() is called very early on, before the kernel text
- * and data have been mapped to KERNELBASE.  At this point the code
- * is running at whatever address it has been loaded at, so
- * references to extern and static variables must be relocated
- * explicitly.  The procedure reloc_offset() returns the address
- * we're currently running at minus the address we were linked at.
- * (Note that strings count as static variables.)
- *
- * Because OF may have mapped I/O devices into the area starting at
- * KERNELBASE, particularly on CHRP machines, we can't safely call
- * OF once the kernel has been mapped to KERNELBASE.  Therefore all
- * OF calls should be done within prom_init(), and prom_init()
- * and all routines called within it must be careful to relocate
- * references as necessary.
- *
- * Note that the bss is cleared *after* prom_init runs, so we have
- * to make sure that any static or extern variables it accesses
- * are put in the data segment.
- */
-
-
-#define PROM_BUG() do {                                         \
-        prom_printf("kernel BUG at %s line 0x%x!\n",            \
-                    RELOC(__FILE__), __LINE__);                 \
-        __asm__ __volatile__(".long " BUG_ILLEGAL_INSTR);       \
-} while (0)
-
-#ifdef DEBUG_PROM
-#define prom_debug(x...)        prom_printf(x)
-#else
-#define prom_debug(x...)
-#endif
-
-
-typedef u32 prom_arg_t;
-
-struct prom_args {
-        u32 service;
-        u32 nargs;
-        u32 nret;
-        prom_arg_t args[10];
-        prom_arg_t *rets;     /* Pointer to return values in args[16]. */
-};
-
-struct prom_t {
-        unsigned long entry;
-        ihandle root;
-        ihandle chosen;
-        int cpu;
-        ihandle stdout;
-        ihandle disp_node;
-        struct prom_args args;
-        unsigned long version;
-        unsigned long root_size_cells;
-        unsigned long root_addr_cells;
-};
-
-struct pci_reg_property {
-        struct pci_address addr;
-        u32 size_hi;
-        u32 size_lo;
-};
-
-struct mem_map_entry {
-        u64     base;
-        u64     size;
-};
-
-typedef u32 cell_t;
-
-extern void __start(unsigned long r3, unsigned long r4, unsigned long r5);
-
-extern void enter_prom(struct prom_args *args, unsigned long entry);
-extern void copy_and_flush(unsigned long dest, unsigned long src,
-                           unsigned long size, unsigned long offset);
-
-extern unsigned long klimit;
-
-/* prom structure */
-static struct prom_t __initdata prom;
-
-#define PROM_SCRATCH_SIZE 256
-
-static char __initdata of_stdout_device[256];
-static char __initdata prom_scratch[PROM_SCRATCH_SIZE];
-
-static unsigned long __initdata dt_header_start;
-static unsigned long __initdata dt_struct_start, dt_struct_end;
-static unsigned long __initdata dt_string_start, dt_string_end;
-
-static unsigned long __initdata prom_initrd_start, prom_initrd_end;
-
-static int __initdata iommu_force_on;
-static int __initdata ppc64_iommu_off;
-static int __initdata of_platform;
-
-static char __initdata prom_cmd_line[COMMAND_LINE_SIZE];
-
-static unsigned long __initdata prom_memory_limit;
-static unsigned long __initdata prom_tce_alloc_start;
-static unsigned long __initdata prom_tce_alloc_end;
-
-static unsigned long __initdata alloc_top;
-static unsigned long __initdata alloc_top_high;
-static unsigned long __initdata alloc_bottom;
-static unsigned long __initdata rmo_top;
-static unsigned long __initdata ram_top;
-
-static struct mem_map_entry __initdata mem_reserve_map[MEM_RESERVE_MAP_SIZE];
-static int __initdata mem_reserve_cnt;
-
-static cell_t __initdata regbuf[1024];
-
-
-#define MAX_CPU_THREADS 2
-
-/* TO GO */
-#ifdef CONFIG_HMT
-struct {
-        unsigned int pir;
-        unsigned int threadid;
-} hmt_thread_data[NR_CPUS];
-#endif /* CONFIG_HMT */
-
-/*
- * This are used in calls to call_prom.  The 4th and following
- * arguments to call_prom should be 32-bit values.  64 bit values
- * are truncated to 32 bits (and fortunately don't get interpreted
- * as two arguments).
- */
-#define ADDR(x)         (u32) ((unsigned long)(x) - offset)
-
-/*
- * Error results ... some OF calls will return "-1" on error, some
- * will return 0, some will return either. To simplify, here are
- * macros to use with any ihandle or phandle return value to check if
- * it is valid
- */
-
-#define PROM_ERROR              (-1u)
-#define PHANDLE_VALID(p)        ((p) != 0 && (p) != PROM_ERROR)
-#define IHANDLE_VALID(i)        ((i) != 0 && (i) != PROM_ERROR)
-
-
-/* This is the one and *ONLY* place where we actually call open
- * firmware from, since we need to make sure we're running in 32b
- * mode when we do.  We switch back to 64b mode upon return.
- */
-
-static int __init call_prom(const char *service, int nargs, int nret, ...)
-{
-        int i;
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        va_list list;
-
-        _prom->args.service = ADDR(service);
-        _prom->args.nargs = nargs;
-        _prom->args.nret = nret;
-        _prom->args.rets = (prom_arg_t *)&(_prom->args.args[nargs]);
-
-        va_start(list, nret);
-        for (i=0; i < nargs; i++)
-                _prom->args.args[i] = va_arg(list, prom_arg_t);
-        va_end(list);
-
-        for (i=0; i < nret ;i++)
-                _prom->args.rets[i] = 0;
-
-        enter_prom(&_prom->args, _prom->entry);
-
-        return (nret > 0) ? _prom->args.rets[0] : 0;
-}
-
-
-static unsigned int __init prom_claim(unsigned long virt, unsigned long size,
-                                unsigned long align)
-{
-        return (unsigned int)call_prom("claim", 3, 1,
-                                       (prom_arg_t)virt, (prom_arg_t)size,
-                                       (prom_arg_t)align);
-}
-
-static void __init prom_print(const char *msg)
-{
-        const char *p, *q;
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        if (_prom->stdout == 0)
-                return;
-
-        for (p = msg; *p != 0; p = q) {
-                for (q = p; *q != 0 && *q != '\n'; ++q)
-                        ;
-                if (q > p)
-                        call_prom("write", 3, 1, _prom->stdout, p, q - p);
-                if (*q == 0)
-                        break;
-                ++q;
-                call_prom("write", 3, 1, _prom->stdout, ADDR("\r\n"), 2);
-        }
-}
-
-
-static void __init prom_print_hex(unsigned long val)
-{
-        unsigned long offset = reloc_offset();
-        int i, nibbles = sizeof(val)*2;
-        char buf[sizeof(val)*2+1];
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        for (i = nibbles-1;  i >= 0;  i--) {
-                buf[i] = (val & 0xf) + '0';
-                if (buf[i] > '9')
-                        buf[i] += ('a'-'0'-10);
-                val >>= 4;
-        }
-        buf[nibbles] = '\0';
-        call_prom("write", 3, 1, _prom->stdout, buf, nibbles);
-}
-
-
-static void __init prom_printf(const char *format, ...)
-{
-        unsigned long offset = reloc_offset();
-        const char *p, *q, *s;
-        va_list args;
-        unsigned long v;
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        va_start(args, format);
-        for (p = PTRRELOC(format); *p != 0; p = q) {
-                for (q = p; *q != 0 && *q != '\n' && *q != '%'; ++q)
-                        ;
-                if (q > p)
-                        call_prom("write", 3, 1, _prom->stdout, p, q - p);
-                if (*q == 0)
-                        break;
-                if (*q == '\n') {
-                        ++q;
-                        call_prom("write", 3, 1, _prom->stdout,
-                                  ADDR("\r\n"), 2);
-                        continue;
-                }
-                ++q;
-                if (*q == 0)
-                        break;
-                switch (*q) {
-                case 's':
-                        ++q;
-                        s = va_arg(args, const char *);
-                        prom_print(s);
-                        break;
-                case 'x':
-                        ++q;
-                        v = va_arg(args, unsigned long);
-                        prom_print_hex(v);
-                        break;
-                }
-        }
-}
-
-
-static void __init __attribute__((noreturn)) prom_panic(const char *reason)
-{
-        unsigned long offset = reloc_offset();
-
-        prom_print(PTRRELOC(reason));
-        /* ToDo: should put up an SRC here */
-        call_prom("exit", 0, 0);
-
-        for (;;)                        /* should never get here */
-                ;
-}
-
-
-static int __init prom_next_node(phandle *nodep)
-{
-        phandle node;
-
-        if ((node = *nodep) != 0
-            && (*nodep = call_prom("child", 1, 1, node)) != 0)
-                return 1;
-        if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
-                return 1;
-        for (;;) {
-                if ((node = call_prom("parent", 1, 1, node)) == 0)
-                        return 0;
-                if ((*nodep = call_prom("peer", 1, 1, node)) != 0)
-                        return 1;
-        }
-}
-
-static int __init prom_getprop(phandle node, const char *pname,
-                               void *value, size_t valuelen)
-{
-        unsigned long offset = reloc_offset();
-
-        return call_prom("getprop", 4, 1, node, ADDR(pname),
-                         (u32)(unsigned long) value, (u32) valuelen);
-}
-
-static int __init prom_getproplen(phandle node, const char *pname)
-{
-        unsigned long offset = reloc_offset();
-
-        return call_prom("getproplen", 2, 1, node, ADDR(pname));
-}
-
-static int __init prom_setprop(phandle node, const char *pname,
-                               void *value, size_t valuelen)
-{
-        unsigned long offset = reloc_offset();
-
-        return call_prom("setprop", 4, 1, node, ADDR(pname),
-                         (u32)(unsigned long) value, (u32) valuelen);
-}
-
-/* We can't use the standard versions because of RELOC headaches. */
-#define isxdigit(c)     (('0' <= (c) && (c) <= '9') \
-                         || ('a' <= (c) && (c) <= 'f') \
-                         || ('A' <= (c) && (c) <= 'F'))
-
-#define isdigit(c)      ('0' <= (c) && (c) <= '9')
-#define islower(c)      ('a' <= (c) && (c) <= 'z')
-#define toupper(c)      (islower(c) ? ((c) - 'a' + 'A') : (c))
-
-unsigned long prom_strtoul(const char *cp, const char **endp)
-{
-        unsigned long result = 0, base = 10, value;
-
-        if (*cp == '0') {
-                base = 8;
-                cp++;
-                if (toupper(*cp) == 'X') {
-                        cp++;
-                        base = 16;
-                }
-        }
-
-        while (isxdigit(*cp) &&
-               (value = isdigit(*cp) ? *cp - '0' : toupper(*cp) - 'A' + 10) < base) {
-                result = result * base + value;
-                cp++;
-        }
-
-        if (endp)
-                *endp = cp;
-
-        return result;
-}
-
-unsigned long prom_memparse(const char *ptr, const char **retptr)
-{
-        unsigned long ret = prom_strtoul(ptr, retptr);
-        int shift = 0;
-
-        /*
-         * We can't use a switch here because GCC *may* generate a
-         * jump table which won't work, because we're not running at
-         * the address we're linked at.
-         */
-        if ('G' == **retptr || 'g' == **retptr)
-                shift = 30;
-
-        if ('M' == **retptr || 'm' == **retptr)
-                shift = 20;
-
-        if ('K' == **retptr || 'k' == **retptr)
-                shift = 10;
-
-        if (shift) {
-                ret <<= shift;
-                (*retptr)++;
-        }
-
-        return ret;
-}
-
-/*
- * Early parsing of the command line passed to the kernel, used for
- * "mem=x" and the options that affect the iommu
- */
-static void __init early_cmdline_parse(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        char *opt, *p;
-        int l = 0;
-
-        RELOC(prom_cmd_line[0]) = 0;
-        p = RELOC(prom_cmd_line);
-        if ((long)_prom->chosen > 0)
-                l = prom_getprop(_prom->chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
-#ifdef CONFIG_CMDLINE
-        if (l == 0) /* dbl check */
-                strlcpy(RELOC(prom_cmd_line),
-                        RELOC(CONFIG_CMDLINE), sizeof(prom_cmd_line));
-#endif /* CONFIG_CMDLINE */
-        prom_printf("command line: %s\n", RELOC(prom_cmd_line));
-
-        opt = strstr(RELOC(prom_cmd_line), RELOC("iommu="));
-        if (opt) {
-                prom_printf("iommu opt is: %s\n", opt);
-                opt += 6;
-                while (*opt && *opt == ' ')
-                        opt++;
-                if (!strncmp(opt, RELOC("off"), 3))
-                        RELOC(ppc64_iommu_off) = 1;
-                else if (!strncmp(opt, RELOC("force"), 5))
-                        RELOC(iommu_force_on) = 1;
-        }
-
-        opt = strstr(RELOC(prom_cmd_line), RELOC("mem="));
-        if (opt) {
-                opt += 4;
-                RELOC(prom_memory_limit) = prom_memparse(opt, (const char **)&opt);
-                /* Align to 16 MB == size of large page */
-                RELOC(prom_memory_limit) = ALIGN(RELOC(prom_memory_limit), 0x1000000);
-        }
-}
-
-/*
- * To tell the firmware what our capabilities are, we have to pass
- * it a fake 32-bit ELF header containing a couple of PT_NOTE sections
- * that contain structures that contain the actual values.
- */
-static struct fake_elf {
-        Elf32_Ehdr      elfhdr;
-        Elf32_Phdr      phdr[2];
-        struct chrpnote {
-                u32     namesz;
-                u32     descsz;
-                u32     type;
-                char    name[8];        /* "PowerPC" */
-                struct chrpdesc {
-                        u32     real_mode;
-                        u32     real_base;
-                        u32     real_size;
-                        u32     virt_base;
-                        u32     virt_size;
-                        u32     load_base;
-                } chrpdesc;
-        } chrpnote;
-        struct rpanote {
-                u32     namesz;
-                u32     descsz;
-                u32     type;
-                char    name[24];       /* "IBM,RPA-Client-Config" */
-                struct rpadesc {
-                        u32     lpar_affinity;
-                        u32     min_rmo_size;
-                        u32     min_rmo_percent;
-                        u32     max_pft_size;
-                        u32     splpar;
-                        u32     min_load;
-                        u32     new_mem_def;
-                        u32     ignore_me;
-                } rpadesc;
-        } rpanote;
-} fake_elf = {
-        .elfhdr = {
-                .e_ident = { 0x7f, 'E', 'L', 'F',
-                             ELFCLASS32, ELFDATA2MSB, EV_CURRENT },
-                .e_type = ET_EXEC,      /* yeah right */
-                .e_machine = EM_PPC,
-                .e_version = EV_CURRENT,
-                .e_phoff = offsetof(struct fake_elf, phdr),
-                .e_phentsize = sizeof(Elf32_Phdr),
-                .e_phnum = 2
-        },
-        .phdr = {
-                [0] = {
-                        .p_type = PT_NOTE,
-                        .p_offset = offsetof(struct fake_elf, chrpnote),
-                        .p_filesz = sizeof(struct chrpnote)
-                }, [1] = {
-                        .p_type = PT_NOTE,
-                        .p_offset = offsetof(struct fake_elf, rpanote),
-                        .p_filesz = sizeof(struct rpanote)
-                }
-        },
-        .chrpnote = {
-                .namesz = sizeof("PowerPC"),
-                .descsz = sizeof(struct chrpdesc),
-                .type = 0x1275,
-                .name = "PowerPC",
-                .chrpdesc = {
-                        .real_mode = ~0U,       /* ~0 means "don't care" */
-                        .real_base = ~0U,
-                        .real_size = ~0U,
-                        .virt_base = ~0U,
-                        .virt_size = ~0U,
-                        .load_base = ~0U
-                },
-        },
-        .rpanote = {
-                .namesz = sizeof("IBM,RPA-Client-Config"),
-                .descsz = sizeof(struct rpadesc),
-                .type = 0x12759999,
-                .name = "IBM,RPA-Client-Config",
-                .rpadesc = {
-                        .lpar_affinity = 0,
-                        .min_rmo_size = 64,     /* in megabytes */
-                        .min_rmo_percent = 0,
-                        .max_pft_size = 48,     /* 2^48 bytes max PFT size */
-                        .splpar = 1,
-                        .min_load = ~0U,
-                        .new_mem_def = 0
-                }
-        }
-};
-
-static void __init prom_send_capabilities(void)
-{
-        unsigned long offset = reloc_offset();
-        ihandle elfloader;
-
-        elfloader = call_prom("open", 1, 1, ADDR("/packages/elf-loader"));
-        if (elfloader == 0) {
-                prom_printf("couldn't open /packages/elf-loader\n");
-                return;
-        }
-        call_prom("call-method", 3, 1, ADDR("process-elf-header"),
-                        elfloader, ADDR(&fake_elf));
-        call_prom("close", 1, 0, elfloader);
-}
-
-/*
- * Memory allocation strategy... our layout is normally:
- *
- *  at 14Mb or more we vmlinux, then a gap and initrd. In some rare cases, initrd
- *  might end up beeing before the kernel though. We assume this won't override
- *  the final kernel at 0, we have no provision to handle that in this version,
- *  but it should hopefully never happen.
- *
- *  alloc_top is set to the top of RMO, eventually shrink down if the TCEs overlap
- *  alloc_bottom is set to the top of kernel/initrd
- *
- *  from there, allocations are done that way : rtas is allocated topmost, and
- *  the device-tree is allocated from the bottom. We try to grow the device-tree
- *  allocation as we progress. If we can't, then we fail, we don't currently have
- *  a facility to restart elsewhere, but that shouldn't be necessary neither
- *
- *  Note that calls to reserve_mem have to be done explicitely, memory allocated
- *  with either alloc_up or alloc_down isn't automatically reserved.
- */
-
-
-/*
- * Allocates memory in the RMO upward from the kernel/initrd
- *
- * When align is 0, this is a special case, it means to allocate in place
- * at the current location of alloc_bottom or fail (that is basically
- * extending the previous allocation). Used for the device-tree flattening
- */
-static unsigned long __init alloc_up(unsigned long size, unsigned long align)
-{
-        unsigned long offset = reloc_offset();
-        unsigned long base = _ALIGN_UP(RELOC(alloc_bottom), align);
-        unsigned long addr = 0;
-
-        prom_debug("alloc_up(%x, %x)\n", size, align);
-        if (RELOC(ram_top) == 0)
-                prom_panic("alloc_up() called with mem not initialized\n");
-
-        if (align)
-                base = _ALIGN_UP(RELOC(alloc_bottom), align);
-        else
-                base = RELOC(alloc_bottom);
-
-        for(; (base + size) <= RELOC(alloc_top); 
-            base = _ALIGN_UP(base + 0x100000, align)) {
-                prom_debug("    trying: 0x%x\n\r", base);
-                addr = (unsigned long)prom_claim(base, size, 0);
-                if (addr != PROM_ERROR)
-                        break;
-                addr = 0;
-                if (align == 0)
-                        break;
-        }
-        if (addr == 0)
-                return 0;
-        RELOC(alloc_bottom) = addr;
-
-        prom_debug(" -> %x\n", addr);
-        prom_debug("  alloc_bottom : %x\n", RELOC(alloc_bottom));
-        prom_debug("  alloc_top    : %x\n", RELOC(alloc_top));
-        prom_debug("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
-        prom_debug("  rmo_top      : %x\n", RELOC(rmo_top));
-        prom_debug("  ram_top      : %x\n", RELOC(ram_top));
-
-        return addr;
-}
-
-/*
- * Allocates memory downard, either from top of RMO, or if highmem
- * is set, from the top of RAM. Note that this one doesn't handle
- * failures. In does claim memory if highmem is not set.
- */
-static unsigned long __init alloc_down(unsigned long size, unsigned long align,
-                                       int highmem)
-{
-        unsigned long offset = reloc_offset();
-        unsigned long base, addr = 0;
-
-        prom_debug("alloc_down(%x, %x, %s)\n", size, align,
-                   highmem ? RELOC("(high)") : RELOC("(low)"));
-        if (RELOC(ram_top) == 0)
-                prom_panic("alloc_down() called with mem not initialized\n");
-
-        if (highmem) {
-                /* Carve out storage for the TCE table. */
-                addr = _ALIGN_DOWN(RELOC(alloc_top_high) - size, align);
-                if (addr <= RELOC(alloc_bottom))
-                        return 0;
-                else {
-                        /* Will we bump into the RMO ? If yes, check out that we
-                         * didn't overlap existing allocations there, if we did,
-                         * we are dead, we must be the first in town !
-                         */
-                        if (addr < RELOC(rmo_top)) {
-                                /* Good, we are first */
-                                if (RELOC(alloc_top) == RELOC(rmo_top))
-                                        RELOC(alloc_top) = RELOC(rmo_top) = addr;
-                                else
-                                        return 0;
-                        }
-                        RELOC(alloc_top_high) = addr;
-                }
-                goto bail;
-        }
-
-        base = _ALIGN_DOWN(RELOC(alloc_top) - size, align);
-        for(; base > RELOC(alloc_bottom); base = _ALIGN_DOWN(base - 0x100000, align))  {
-                prom_debug("    trying: 0x%x\n\r", base);
-                addr = (unsigned long)prom_claim(base, size, 0);
-                if (addr != PROM_ERROR)
-                        break;
-                addr = 0;
-        }
-        if (addr == 0)
-                return 0;
-        RELOC(alloc_top) = addr;
-
- bail:
-        prom_debug(" -> %x\n", addr);
-        prom_debug("  alloc_bottom : %x\n", RELOC(alloc_bottom));
-        prom_debug("  alloc_top    : %x\n", RELOC(alloc_top));
-        prom_debug("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
-        prom_debug("  rmo_top      : %x\n", RELOC(rmo_top));
-        prom_debug("  ram_top      : %x\n", RELOC(ram_top));
-
-        return addr;
-}
-
-/*
- * Parse a "reg" cell
- */
-static unsigned long __init prom_next_cell(int s, cell_t **cellp)
-{
-        cell_t *p = *cellp;
-        unsigned long r = 0;
-
-        /* Ignore more than 2 cells */
-        while (s > 2) {
-                p++;
-                s--;
-        }
-        while (s) {
-                r <<= 32;
-                r |= *(p++);
-                s--;
-        }
-
-        *cellp = p;
-        return r;
-}
-
-/*
- * Very dumb function for adding to the memory reserve list, but
- * we don't need anything smarter at this point
- *
- * XXX Eventually check for collisions. They should NEVER happen
- * if problems seem to show up, it would be a good start to track
- * them down.
- */
-static void reserve_mem(unsigned long base, unsigned long size)
-{
-        unsigned long offset = reloc_offset();
-        unsigned long top = base + size;
-        unsigned long cnt = RELOC(mem_reserve_cnt);
-
-        if (size == 0)
-                return;
-
-        /* We need to always keep one empty entry so that we
-         * have our terminator with "size" set to 0 since we are
-         * dumb and just copy this entire array to the boot params
-         */
-        base = _ALIGN_DOWN(base, PAGE_SIZE);
-        top = _ALIGN_UP(top, PAGE_SIZE);
-        size = top - base;
-
-        if (cnt >= (MEM_RESERVE_MAP_SIZE - 1))
-                prom_panic("Memory reserve map exhausted !\n");
-        RELOC(mem_reserve_map)[cnt].base = base;
-        RELOC(mem_reserve_map)[cnt].size = size;
-        RELOC(mem_reserve_cnt) = cnt + 1;
-}
-
-/*
- * Initialize memory allocation mecanism, parse "memory" nodes and
- * obtain that way the top of memory and RMO to setup out local allocator
- */
-static void __init prom_init_mem(void)
-{
-        phandle node;
-        char *path, type[64];
-        unsigned int plen;
-        cell_t *p, *endp;
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        /*
-         * We iterate the memory nodes to find
-         * 1) top of RMO (first node)
-         * 2) top of memory
-         */
-        prom_debug("root_addr_cells: %x\n", (long)_prom->root_addr_cells);
-        prom_debug("root_size_cells: %x\n", (long)_prom->root_size_cells);
-
-        prom_debug("scanning memory:\n");
-        path = RELOC(prom_scratch);
-
-        for (node = 0; prom_next_node(&node); ) {
-                type[0] = 0;
-                prom_getprop(node, "device_type", type, sizeof(type));
-
-                if (strcmp(type, RELOC("memory")))
-                        continue;
-        
-                plen = prom_getprop(node, "reg", RELOC(regbuf), sizeof(regbuf));
-                if (plen > sizeof(regbuf)) {
-                        prom_printf("memory node too large for buffer !\n");
-                        plen = sizeof(regbuf);
-                }
-                p = RELOC(regbuf);
-                endp = p + (plen / sizeof(cell_t));
-
-#ifdef DEBUG_PROM
-                memset(path, 0, PROM_SCRATCH_SIZE);
-                call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
-                prom_debug("  node %s :\n", path);
-#endif /* DEBUG_PROM */
-
-                while ((endp - p) >= (_prom->root_addr_cells + _prom->root_size_cells)) {
-                        unsigned long base, size;
-
-                        base = prom_next_cell(_prom->root_addr_cells, &p);
-                        size = prom_next_cell(_prom->root_size_cells, &p);
-
-                        if (size == 0)
-                                continue;
-                        prom_debug("    %x %x\n", base, size);
-                        if (base == 0)
-                                RELOC(rmo_top) = size;
-                        if ((base + size) > RELOC(ram_top))
-                                RELOC(ram_top) = base + size;
-                }
-        }
-
-        RELOC(alloc_bottom) = PAGE_ALIGN(RELOC(klimit) - offset + 0x4000);
-
-        /* Check if we have an initrd after the kernel, if we do move our bottom
-         * point to after it
-         */
-        if (RELOC(prom_initrd_start)) {
-                if (RELOC(prom_initrd_end) > RELOC(alloc_bottom))
-                        RELOC(alloc_bottom) = PAGE_ALIGN(RELOC(prom_initrd_end));
-        }
-
-        /*
-         * If prom_memory_limit is set we reduce the upper limits *except* for
-         * alloc_top_high. This must be the real top of RAM so we can put
-         * TCE's up there.
-         */
-
-        RELOC(alloc_top_high) = RELOC(ram_top);
-
-        if (RELOC(prom_memory_limit)) {
-                if (RELOC(prom_memory_limit) <= RELOC(alloc_bottom)) {
-                        prom_printf("Ignoring mem=%x <= alloc_bottom.\n",
-                                RELOC(prom_memory_limit));
-                        RELOC(prom_memory_limit) = 0;
-                } else if (RELOC(prom_memory_limit) >= RELOC(ram_top)) {
-                        prom_printf("Ignoring mem=%x >= ram_top.\n",
-                                RELOC(prom_memory_limit));
-                        RELOC(prom_memory_limit) = 0;
-                } else {
-                        RELOC(ram_top) = RELOC(prom_memory_limit);
-                        RELOC(rmo_top) = min(RELOC(rmo_top), RELOC(prom_memory_limit));
-                }
-        }
-
-        /*
-         * Setup our top alloc point, that is top of RMO or top of
-         * segment 0 when running non-LPAR.
-         */
-        if ( RELOC(of_platform) == PLATFORM_PSERIES_LPAR )
-                RELOC(alloc_top) = RELOC(rmo_top);
-        else
-                /* Some RS64 machines have buggy firmware where claims up at 1GB
-                 * fails. Cap at 768MB as a workaround. Still plenty of room.
-                 */
-                RELOC(alloc_top) = RELOC(rmo_top) = min(0x30000000ul, RELOC(ram_top));
-
-        prom_printf("memory layout at init:\n");
-        prom_printf("  memory_limit : %x (16 MB aligned)\n", RELOC(prom_memory_limit));
-        prom_printf("  alloc_bottom : %x\n", RELOC(alloc_bottom));
-        prom_printf("  alloc_top    : %x\n", RELOC(alloc_top));
-        prom_printf("  alloc_top_hi : %x\n", RELOC(alloc_top_high));
-        prom_printf("  rmo_top      : %x\n", RELOC(rmo_top));
-        prom_printf("  ram_top      : %x\n", RELOC(ram_top));
-}
-
-
-/*
- * Allocate room for and instanciate RTAS
- */
-static void __init prom_instantiate_rtas(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        phandle rtas_node;
-        ihandle rtas_inst;
-        u32 base, entry = 0;
-        u32 size = 0;
-
-        prom_debug("prom_instantiate_rtas: start...\n");
-
-        rtas_node = call_prom("finddevice", 1, 1, ADDR("/rtas"));
-        prom_debug("rtas_node: %x\n", rtas_node);
-        if (!PHANDLE_VALID(rtas_node))
-                return;
-
-        prom_getprop(rtas_node, "rtas-size", &size, sizeof(size));
-        if (size == 0)
-                return;
-
-        base = alloc_down(size, PAGE_SIZE, 0);
-        if (base == 0) {
-                prom_printf("RTAS allocation failed !\n");
-                return;
-        }
-
-        rtas_inst = call_prom("open", 1, 1, ADDR("/rtas"));
-        if (!IHANDLE_VALID(rtas_inst)) {
-                prom_printf("opening rtas package failed");
-                return;
-        }
-
-        prom_printf("instantiating rtas at 0x%x ...", base);
-
-        if (call_prom("call-method", 3, 2,
-                      ADDR("instantiate-rtas"),
-                      rtas_inst, base) != PROM_ERROR) {
-                entry = (long)_prom->args.rets[1];
-        }
-        if (entry == 0) {
-                prom_printf(" failed\n");
-                return;
-        }
-        prom_printf(" done\n");
-
-        reserve_mem(base, size);
-
-        prom_setprop(rtas_node, "linux,rtas-base", &base, sizeof(base));
-        prom_setprop(rtas_node, "linux,rtas-entry", &entry, sizeof(entry));
-
-        prom_debug("rtas base     = 0x%x\n", base);
-        prom_debug("rtas entry    = 0x%x\n", entry);
-        prom_debug("rtas size     = 0x%x\n", (long)size);
-
-        prom_debug("prom_instantiate_rtas: end...\n");
-}
-
-
-/*
- * Allocate room for and initialize TCE tables
- */
-static void __init prom_initialize_tce_table(void)
-{
-        phandle node;
-        ihandle phb_node;
-        unsigned long offset = reloc_offset();
-        char compatible[64], type[64], model[64];
-        char *path = RELOC(prom_scratch);
-        u64 base, align;
-        u32 minalign, minsize;
-        u64 tce_entry, *tce_entryp;
-        u64 local_alloc_top, local_alloc_bottom;
-        u64 i;
-
-        if (RELOC(ppc64_iommu_off))
-                return;
-
-        prom_debug("starting prom_initialize_tce_table\n");
-
-        /* Cache current top of allocs so we reserve a single block */
-        local_alloc_top = RELOC(alloc_top_high);
-        local_alloc_bottom = local_alloc_top;
-
-        /* Search all nodes looking for PHBs. */
-        for (node = 0; prom_next_node(&node); ) {
-                compatible[0] = 0;
-                type[0] = 0;
-                model[0] = 0;
-                prom_getprop(node, "compatible",
-                             compatible, sizeof(compatible));
-                prom_getprop(node, "device_type", type, sizeof(type));
-                prom_getprop(node, "model", model, sizeof(model));
-
-                if ((type[0] == 0) || (strstr(type, RELOC("pci")) == NULL))
-                        continue;
-
-                /* Keep the old logic in tack to avoid regression. */
-                if (compatible[0] != 0) {
-                        if ((strstr(compatible, RELOC("python")) == NULL) &&
-                            (strstr(compatible, RELOC("Speedwagon")) == NULL) &&
-                            (strstr(compatible, RELOC("Winnipeg")) == NULL))
-                                continue;
-                } else if (model[0] != 0) {
-                        if ((strstr(model, RELOC("ython")) == NULL) &&
-                            (strstr(model, RELOC("peedwagon")) == NULL) &&
-                            (strstr(model, RELOC("innipeg")) == NULL))
-                                continue;
-                }
-
-                if (prom_getprop(node, "tce-table-minalign", &minalign,
-                                 sizeof(minalign)) == PROM_ERROR)
-                        minalign = 0;
-                if (prom_getprop(node, "tce-table-minsize", &minsize,
-                                 sizeof(minsize)) == PROM_ERROR)
-                        minsize = 4UL << 20;
-
-                /*
-                 * Even though we read what OF wants, we just set the table
-                 * size to 4 MB.  This is enough to map 2GB of PCI DMA space.
-                 * By doing this, we avoid the pitfalls of trying to DMA to
-                 * MMIO space and the DMA alias hole.
-                 *
-                 * On POWER4, firmware sets the TCE region by assuming
-                 * each TCE table is 8MB. Using this memory for anything
-                 * else will impact performance, so we always allocate 8MB.
-                 * Anton
-                 */
-                if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p))
-                        minsize = 8UL << 20;
-                else
-                        minsize = 4UL << 20;
-
-                /* Align to the greater of the align or size */
-                align = max(minalign, minsize);
-                base = alloc_down(minsize, align, 1);
-                if (base == 0)
-                        prom_panic("ERROR, cannot find space for TCE table.\n");
-                if (base < local_alloc_bottom)
-                        local_alloc_bottom = base;
-
-                /* Save away the TCE table attributes for later use. */
-                prom_setprop(node, "linux,tce-base", &base, sizeof(base));
-                prom_setprop(node, "linux,tce-size", &minsize, sizeof(minsize));
-
-                /* It seems OF doesn't null-terminate the path :-( */
-                memset(path, 0, sizeof(path));
-                /* Call OF to setup the TCE hardware */
-                if (call_prom("package-to-path", 3, 1, node,
-                              path, PROM_SCRATCH_SIZE-1) == PROM_ERROR) {
-                        prom_printf("package-to-path failed\n");
-                }
-
-                prom_debug("TCE table: %s\n", path);
-                prom_debug("\tnode = 0x%x\n", node);
-                prom_debug("\tbase = 0x%x\n", base);
-                prom_debug("\tsize = 0x%x\n", minsize);
-
-                /* Initialize the table to have a one-to-one mapping
-                 * over the allocated size.
-                 */
-                tce_entryp = (unsigned long *)base;
-                for (i = 0; i < (minsize >> 3) ;tce_entryp++, i++) {
-                        tce_entry = (i << PAGE_SHIFT);
-                        tce_entry |= 0x3;
-                        *tce_entryp = tce_entry;
-                }
-
-                prom_printf("opening PHB %s", path);
-                phb_node = call_prom("open", 1, 1, path);
-                if (phb_node == 0)
-                        prom_printf("... failed\n");
-                else
-                        prom_printf("... done\n");
-
-                call_prom("call-method", 6, 0, ADDR("set-64-bit-addressing"),
-                          phb_node, -1, minsize,
-                          (u32) base, (u32) (base >> 32));
-                call_prom("close", 1, 0, phb_node);
-        }
-
-        reserve_mem(local_alloc_bottom, local_alloc_top - local_alloc_bottom);
-
-        if (RELOC(prom_memory_limit)) {
-                /*
-                 * We align the start to a 16MB boundary so we can map the TCE area
-                 * using large pages if possible. The end should be the top of RAM
-                 * so no need to align it.
-                 */
-                RELOC(prom_tce_alloc_start) = _ALIGN_DOWN(local_alloc_bottom, 0x1000000);
-                RELOC(prom_tce_alloc_end) = local_alloc_top;
-        }
-
-        /* Flag the first invalid entry */
-        prom_debug("ending prom_initialize_tce_table\n");
-}
-
-/*
- * With CHRP SMP we need to use the OF to start the other
- * processors so we can't wait until smp_boot_cpus (the OF is
- * trashed by then) so we have to put the processors into
- * a holding pattern controlled by the kernel (not OF) before
- * we destroy the OF.
- *
- * This uses a chunk of low memory, puts some holding pattern
- * code there and sends the other processors off to there until
- * smp_boot_cpus tells them to do something.  The holding pattern
- * checks that address until its cpu # is there, when it is that
- * cpu jumps to __secondary_start().  smp_boot_cpus() takes care
- * of setting those values.
- *
- * We also use physical address 0x4 here to tell when a cpu
- * is in its holding pattern code.
- *
- * Fixup comment... DRENG / PPPBBB - Peter
- *
- * -- Cort
- */
-static void __init prom_hold_cpus(void)
-{
-        unsigned long i;
-        unsigned int reg;
-        phandle node;
-        unsigned long offset = reloc_offset();
-        char type[64];
-        int cpuid = 0;
-        unsigned int interrupt_server[MAX_CPU_THREADS];
-        unsigned int cpu_threads, hw_cpu_num;
-        int propsize;
-        extern void __secondary_hold(void);
-        extern unsigned long __secondary_hold_spinloop;
-        extern unsigned long __secondary_hold_acknowledge;
-        unsigned long *spinloop
-                = (void *)virt_to_abs(&__secondary_hold_spinloop);
-        unsigned long *acknowledge
-                = (void *)virt_to_abs(&__secondary_hold_acknowledge);
-        unsigned long secondary_hold
-                = virt_to_abs(*PTRRELOC((unsigned long *)__secondary_hold));
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        prom_debug("prom_hold_cpus: start...\n");
-        prom_debug("    1) spinloop       = 0x%x\n", (unsigned long)spinloop);
-        prom_debug("    1) *spinloop      = 0x%x\n", *spinloop);
-        prom_debug("    1) acknowledge    = 0x%x\n",
-                   (unsigned long)acknowledge);
-        prom_debug("    1) *acknowledge   = 0x%x\n", *acknowledge);
-        prom_debug("    1) secondary_hold = 0x%x\n", secondary_hold);
-
-        /* Set the common spinloop variable, so all of the secondary cpus
-         * will block when they are awakened from their OF spinloop.
-         * This must occur for both SMP and non SMP kernels, since OF will
-         * be trashed when we move the kernel.
-         */
-        *spinloop = 0;
-
-#ifdef CONFIG_HMT
-        for (i=0; i < NR_CPUS; i++) {
-                RELOC(hmt_thread_data)[i].pir = 0xdeadbeef;
-        }
-#endif
-        /* look for cpus */
-        for (node = 0; prom_next_node(&node); ) {
-                type[0] = 0;
-                prom_getprop(node, "device_type", type, sizeof(type));
-                if (strcmp(type, RELOC("cpu")) != 0)
-                        continue;
-
-                /* Skip non-configured cpus. */
-                if (prom_getprop(node, "status", type, sizeof(type)) > 0)
-                        if (strcmp(type, RELOC("okay")) != 0)
-                                continue;
-
-                reg = -1;
-                prom_getprop(node, "reg", &reg, sizeof(reg));
-
-                prom_debug("\ncpuid        = 0x%x\n", cpuid);
-                prom_debug("cpu hw idx   = 0x%x\n", reg);
-
-                /* Init the acknowledge var which will be reset by
-                 * the secondary cpu when it awakens from its OF
-                 * spinloop.
-                 */
-                *acknowledge = (unsigned long)-1;
-
-                propsize = prom_getprop(node, "ibm,ppc-interrupt-server#s",
-                                        &interrupt_server,
-                                        sizeof(interrupt_server));
-                if (propsize < 0) {
-                        /* no property.  old hardware has no SMT */
-                        cpu_threads = 1;
-                        interrupt_server[0] = reg; /* fake it with phys id */
-                } else {
-                        /* We have a threaded processor */
-                        cpu_threads = propsize / sizeof(u32);
-                        if (cpu_threads > MAX_CPU_THREADS) {
-                                prom_printf("SMT: too many threads!\n"
-                                            "SMT: found %x, max is %x\n",
-                                            cpu_threads, MAX_CPU_THREADS);
-                                cpu_threads = 1; /* ToDo: panic? */
-                        }
-                }
-
-                hw_cpu_num = interrupt_server[0];
-                if (hw_cpu_num != _prom->cpu) {
-                        /* Primary Thread of non-boot cpu */
-                        prom_printf("%x : starting cpu hw idx %x... ", cpuid, reg);
-                        call_prom("start-cpu", 3, 0, node,
-                                  secondary_hold, reg);
-
-                        for ( i = 0 ; (i < 100000000) && 
-                              (*acknowledge == ((unsigned long)-1)); i++ )
-                                mb();
-
-                        if (*acknowledge == reg) {
-                                prom_printf("done\n");
-                                /* We have to get every CPU out of OF,
-                                 * even if we never start it. */
-                                if (cpuid >= NR_CPUS)
-                                        goto next;
-                        } else {
-                                prom_printf("failed: %x\n", *acknowledge);
-                        }
-                }
-#ifdef CONFIG_SMP
-                else
-                        prom_printf("%x : boot cpu     %x\n", cpuid, reg);
-#endif
-next:
-#ifdef CONFIG_SMP
-                /* Init paca for secondary threads.   They start later. */
-                for (i=1; i < cpu_threads; i++) {
-                        cpuid++;
-                        if (cpuid >= NR_CPUS)
-                                continue;
-                }
-#endif /* CONFIG_SMP */
-                cpuid++;
-        }
-#ifdef CONFIG_HMT
-        /* Only enable HMT on processors that provide support. */
-        if (__is_processor(PV_PULSAR) || 
-            __is_processor(PV_ICESTAR) ||
-            __is_processor(PV_SSTAR)) {
-                prom_printf("    starting secondary threads\n");
-
-                for (i = 0; i < NR_CPUS; i += 2) {
-                        if (!cpu_online(i))
-                                continue;
-
-                        if (i == 0) {
-                                unsigned long pir = mfspr(SPRN_PIR);
-                                if (__is_processor(PV_PULSAR)) {
-                                        RELOC(hmt_thread_data)[i].pir = 
-                                                pir & 0x1f;
-                                } else {
-                                        RELOC(hmt_thread_data)[i].pir = 
-                                                pir & 0x3ff;
-                                }
-                        }
-                }
-        } else {
-                prom_printf("Processor is not HMT capable\n");
-        }
-#endif
-
-        if (cpuid > NR_CPUS)
-                prom_printf("WARNING: maximum CPUs (" __stringify(NR_CPUS)
-                            ") exceeded: ignoring extras\n");
-
-        prom_debug("prom_hold_cpus: end...\n");
-}
-
-
-static void __init prom_init_client_services(unsigned long pp)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        /* Get a handle to the prom entry point before anything else */
-        _prom->entry = pp;
-
-        /* Init default value for phys size */
-        _prom->root_size_cells = 1;
-        _prom->root_addr_cells = 2;
-
-        /* get a handle for the stdout device */
-        _prom->chosen = call_prom("finddevice", 1, 1, ADDR("/chosen"));
-        if (!PHANDLE_VALID(_prom->chosen))
-                prom_panic("cannot find chosen"); /* msg won't be printed :( */
-
-        /* get device tree root */
-        _prom->root = call_prom("finddevice", 1, 1, ADDR("/"));
-        if (!PHANDLE_VALID(_prom->root))
-                prom_panic("cannot find device tree root"); /* msg won't be printed :( */
-}
-
-static void __init prom_init_stdout(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        char *path = RELOC(of_stdout_device);
-        char type[16];
-        u32 val;
-
-        if (prom_getprop(_prom->chosen, "stdout", &val, sizeof(val)) <= 0)
-                prom_panic("cannot find stdout");
-
-        _prom->stdout = val;
-
-        /* Get the full OF pathname of the stdout device */
-        memset(path, 0, 256);
-        call_prom("instance-to-path", 3, 1, _prom->stdout, path, 255);
-        val = call_prom("instance-to-package", 1, 1, _prom->stdout);
-        prom_setprop(_prom->chosen, "linux,stdout-package", &val, sizeof(val));
-        prom_printf("OF stdout device is: %s\n", RELOC(of_stdout_device));
-        prom_setprop(_prom->chosen, "linux,stdout-path",
-                     RELOC(of_stdout_device), strlen(RELOC(of_stdout_device))+1);
-
-        /* If it's a display, note it */
-        memset(type, 0, sizeof(type));
-        prom_getprop(val, "device_type", type, sizeof(type));
-        if (strcmp(type, RELOC("display")) == 0) {
-                _prom->disp_node = val;
-                prom_setprop(val, "linux,boot-display", NULL, 0);
-        }
-}
-
-static void __init prom_close_stdin(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        ihandle val;
-
-        if (prom_getprop(_prom->chosen, "stdin", &val, sizeof(val)) > 0)
-                call_prom("close", 1, 0, val);
-}
-
-static int __init prom_find_machine_type(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        char compat[256];
-        int len, i = 0;
-        phandle rtas;
-
-        len = prom_getprop(_prom->root, "compatible",
-                           compat, sizeof(compat)-1);
-        if (len > 0) {
-                compat[len] = 0;
-                while (i < len) {
-                        char *p = &compat[i];
-                        int sl = strlen(p);
-                        if (sl == 0)
-                                break;
-                        if (strstr(p, RELOC("Power Macintosh")) ||
-                            strstr(p, RELOC("MacRISC4")))
-                                return PLATFORM_POWERMAC;
-                        if (strstr(p, RELOC("Momentum,Maple")))
-                                return PLATFORM_MAPLE;
-                        i += sl + 1;
-                }
-        }
-        /* Default to pSeries. We need to know if we are running LPAR */
-        rtas = call_prom("finddevice", 1, 1, ADDR("/rtas"));
-        if (PHANDLE_VALID(rtas)) {
-                int x = prom_getproplen(rtas, "ibm,hypertas-functions");
-                if (x != PROM_ERROR) {
-                        prom_printf("Hypertas detected, assuming LPAR !\n");
-                        return PLATFORM_PSERIES_LPAR;
-                }
-        }
-        return PLATFORM_PSERIES;
-}
-
-static int __init prom_set_color(ihandle ih, int i, int r, int g, int b)
-{
-        unsigned long offset = reloc_offset();
-
-        return call_prom("call-method", 6, 1, ADDR("color!"), ih, i, b, g, r);
-}
-
-/*
- * If we have a display that we don't know how to drive,
- * we will want to try to execute OF's open method for it
- * later.  However, OF will probably fall over if we do that
- * we've taken over the MMU.
- * So we check whether we will need to open the display,
- * and if so, open it now.
- */
-static void __init prom_check_displays(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        char type[16], *path;
-        phandle node;
-        ihandle ih;
-        int i;
-
-        static unsigned char default_colors[] = {
-                0x00, 0x00, 0x00,
-                0x00, 0x00, 0xaa,
-                0x00, 0xaa, 0x00,
-                0x00, 0xaa, 0xaa,
-                0xaa, 0x00, 0x00,
-                0xaa, 0x00, 0xaa,
-                0xaa, 0xaa, 0x00,
-                0xaa, 0xaa, 0xaa,
-                0x55, 0x55, 0x55,
-                0x55, 0x55, 0xff,
-                0x55, 0xff, 0x55,
-                0x55, 0xff, 0xff,
-                0xff, 0x55, 0x55,
-                0xff, 0x55, 0xff,
-                0xff, 0xff, 0x55,
-                0xff, 0xff, 0xff
-        };
-        const unsigned char *clut;
-
-        prom_printf("Looking for displays\n");
-        for (node = 0; prom_next_node(&node); ) {
-                memset(type, 0, sizeof(type));
-                prom_getprop(node, "device_type", type, sizeof(type));
-                if (strcmp(type, RELOC("display")) != 0)
-                        continue;
-
-                /* It seems OF doesn't null-terminate the path :-( */
-                path = RELOC(prom_scratch);
-                memset(path, 0, PROM_SCRATCH_SIZE);
-
-                /*
-                 * leave some room at the end of the path for appending extra
-                 * arguments
-                 */
-                if (call_prom("package-to-path", 3, 1, node, path,
-                              PROM_SCRATCH_SIZE-10) == PROM_ERROR)
-                        continue;
-                prom_printf("found display   : %s, opening ... ", path);
-                
-                ih = call_prom("open", 1, 1, path);
-                if (ih == 0) {
-                        prom_printf("failed\n");
-                        continue;
-                }
-
-                /* Success */
-                prom_printf("done\n");
-                prom_setprop(node, "linux,opened", NULL, 0);
-
-                /*
-                 * stdout wasn't a display node, pick the first we can find
-                 * for btext
-                 */
-                if (_prom->disp_node == 0)
-                        _prom->disp_node = node;
-
-                /* Setup a useable color table when the appropriate
-                 * method is available. Should update this to set-colors */
-                clut = RELOC(default_colors);
-                for (i = 0; i < 32; i++, clut += 3)
-                        if (prom_set_color(ih, i, clut[0], clut[1],
-                                           clut[2]) != 0)
-                                break;
-
-#ifdef CONFIG_LOGO_LINUX_CLUT224
-                clut = PTRRELOC(RELOC(logo_linux_clut224.clut));
-                for (i = 0; i < RELOC(logo_linux_clut224.clutsize); i++, clut += 3)
-                        if (prom_set_color(ih, i + 32, clut[0], clut[1],
-                                           clut[2]) != 0)
-                                break;
-#endif /* CONFIG_LOGO_LINUX_CLUT224 */
-        }
-}
-
-
-/* Return (relocated) pointer to this much memory: moves initrd if reqd. */
-static void __init *make_room(unsigned long *mem_start, unsigned long *mem_end,
-                              unsigned long needed, unsigned long align)
-{
-        unsigned long offset = reloc_offset();
-        void *ret;
-
-        *mem_start = _ALIGN(*mem_start, align);
-        while ((*mem_start + needed) > *mem_end) {
-                unsigned long room, chunk;
-
-                prom_debug("Chunk exhausted, claiming more at %x...\n",
-                           RELOC(alloc_bottom));
-                room = RELOC(alloc_top) - RELOC(alloc_bottom);
-                if (room > DEVTREE_CHUNK_SIZE)
-                        room = DEVTREE_CHUNK_SIZE;
-                if (room < PAGE_SIZE)
-                        prom_panic("No memory for flatten_device_tree (no room)");
-                chunk = alloc_up(room, 0);
-                if (chunk == 0)
-                        prom_panic("No memory for flatten_device_tree (claim failed)");
-                *mem_end = RELOC(alloc_top);
-        }
-
-        ret = (void *)*mem_start;
-        *mem_start += needed;
-
-        return ret;
-}
-
-#define dt_push_token(token, mem_start, mem_end) \
-        do { *((u32 *)make_room(mem_start, mem_end, 4, 4)) = token; } while(0)
-
-static unsigned long __init dt_find_string(char *str)
-{
-        unsigned long offset = reloc_offset();
-        char *s, *os;
-
-        s = os = (char *)RELOC(dt_string_start);
-        s += 4;
-        while (s <  (char *)RELOC(dt_string_end)) {
-                if (strcmp(s, str) == 0)
-                        return s - os;
-                s += strlen(s) + 1;
-        }
-        return 0;
-}
-
-/*
- * The Open Firmware 1275 specification states properties must be 31 bytes or
- * less, however not all firmwares obey this. Make it 64 bytes to be safe.
- */
-#define MAX_PROPERTY_NAME 64
-
-static void __init scan_dt_build_strings(phandle node,
-                                         unsigned long *mem_start,
-                                         unsigned long *mem_end)
-{
-        unsigned long offset = reloc_offset();
-        char *prev_name, *namep, *sstart;
-        unsigned long soff;
-        phandle child;
-
-        sstart =  (char *)RELOC(dt_string_start);
-
-        /* get and store all property names */
-        prev_name = RELOC("");
-        for (;;) {
-                /* 64 is max len of name including nul. */
-                namep = make_room(mem_start, mem_end, MAX_PROPERTY_NAME, 1);
-                if (call_prom("nextprop", 3, 1, node, prev_name, namep) != 1) {
-                        /* No more nodes: unwind alloc */
-                        *mem_start = (unsigned long)namep;
-                        break;
-                }
-
-                /* skip "name" */
-                if (strcmp(namep, RELOC("name")) == 0) {
-                        *mem_start = (unsigned long)namep;
-                        prev_name = RELOC("name");
-                        continue;
-                }
-                /* get/create string entry */
-                soff = dt_find_string(namep);
-                if (soff != 0) {
-                        *mem_start = (unsigned long)namep;
-                        namep = sstart + soff;
-                } else {
-                        /* Trim off some if we can */
-                        *mem_start = (unsigned long)namep + strlen(namep) + 1;
-                        RELOC(dt_string_end) = *mem_start;
-                }
-                prev_name = namep;
-        }
-
-        /* do all our children */
-        child = call_prom("child", 1, 1, node);
-        while (child != 0) {
-                scan_dt_build_strings(child, mem_start, mem_end);
-                child = call_prom("peer", 1, 1, child);
-        }
-}
-
-static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
-                                        unsigned long *mem_end)
-{
-        phandle child;
-        char *namep, *prev_name, *sstart, *p, *ep, *lp, *path;
-        unsigned long soff;
-        unsigned char *valp;
-        unsigned long offset = reloc_offset();
-        static char pname[MAX_PROPERTY_NAME];
-        int l;
-
-        dt_push_token(OF_DT_BEGIN_NODE, mem_start, mem_end);
-
-        /* get the node's full name */
-        namep = (char *)*mem_start;
-        l = call_prom("package-to-path", 3, 1, node,
-                      namep, *mem_end - *mem_start);
-        if (l >= 0) {
-                /* Didn't fit?  Get more room. */
-                if ((l+1) > (*mem_end - *mem_start)) {
-                        namep = make_room(mem_start, mem_end, l+1, 1);
-                        call_prom("package-to-path", 3, 1, node, namep, l);
-                }
-                namep[l] = '\0';
-
-                /* Fixup an Apple bug where they have bogus \0 chars in the
-                 * middle of the path in some properties
-                 */
-                for (p = namep, ep = namep + l; p < ep; p++)
-                        if (*p == '\0') {
-                                memmove(p, p+1, ep - p);
-                                ep--; l--; p--;
-                        }
-
-                /* now try to extract the unit name in that mess */
-                for (p = namep, lp = NULL; *p; p++)
-                        if (*p == '/')
-                                lp = p + 1;
-                if (lp != NULL)
-                        memmove(namep, lp, strlen(lp) + 1);
-                *mem_start = _ALIGN(((unsigned long) namep) +
-                                    strlen(namep) + 1, 4);
-        }
-
-        /* get it again for debugging */
-        path = RELOC(prom_scratch);
-        memset(path, 0, PROM_SCRATCH_SIZE);
-        call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
-
-        /* get and store all properties */
-        prev_name = RELOC("");
-        sstart = (char *)RELOC(dt_string_start);
-        for (;;) {
-                if (call_prom("nextprop", 3, 1, node, prev_name,
-                              RELOC(pname)) != 1)
-                        break;
-
-                /* skip "name" */
-                if (strcmp(RELOC(pname), RELOC("name")) == 0) {
-                        prev_name = RELOC("name");
-                        continue;
-                }
-
-                /* find string offset */
-                soff = dt_find_string(RELOC(pname));
-                if (soff == 0) {
-                        prom_printf("WARNING: Can't find string index for"
-                                    " <%s>, node %s\n", RELOC(pname), path);
-                        break;
-                }
-                prev_name = sstart + soff;
-
-                /* get length */
-                l = call_prom("getproplen", 2, 1, node, RELOC(pname));
-
-                /* sanity checks */
-                if (l == PROM_ERROR)
-                        continue;
-                if (l > MAX_PROPERTY_LENGTH) {
-                        prom_printf("WARNING: ignoring large property ");
-                        /* It seems OF doesn't null-terminate the path :-( */
-                        prom_printf("[%s] ", path);
-                        prom_printf("%s length 0x%x\n", RELOC(pname), l);
-                        continue;
-                }
-
-                /* push property head */
-                dt_push_token(OF_DT_PROP, mem_start, mem_end);
-                dt_push_token(l, mem_start, mem_end);
-                dt_push_token(soff, mem_start, mem_end);
-
-                /* push property content */
-                valp = make_room(mem_start, mem_end, l, 4);
-                call_prom("getprop", 4, 1, node, RELOC(pname), valp, l);
-                *mem_start = _ALIGN(*mem_start, 4);
-        }
-
-        /* Add a "linux,phandle" property. */
-        soff = dt_find_string(RELOC("linux,phandle"));
-        if (soff == 0)
-                prom_printf("WARNING: Can't find string index for"
-                            " <linux-phandle> node %s\n", path);
-        else {
-                dt_push_token(OF_DT_PROP, mem_start, mem_end);
-                dt_push_token(4, mem_start, mem_end);
-                dt_push_token(soff, mem_start, mem_end);
-                valp = make_room(mem_start, mem_end, 4, 4);
-                *(u32 *)valp = node;
-        }
-
-        /* do all our children */
-        child = call_prom("child", 1, 1, node);
-        while (child != 0) {
-                scan_dt_build_struct(child, mem_start, mem_end);
-                child = call_prom("peer", 1, 1, child);
-        }
-
-        dt_push_token(OF_DT_END_NODE, mem_start, mem_end);
-}
-
-static void __init flatten_device_tree(void)
-{
-        phandle root;
-        unsigned long offset = reloc_offset();
-        unsigned long mem_start, mem_end, room;
-        struct boot_param_header *hdr;
-        struct prom_t *_prom = PTRRELOC(&prom);
-        char *namep;
-        u64 *rsvmap;
-
-        /*
-         * Check how much room we have between alloc top & bottom (+/- a
-         * few pages), crop to 4Mb, as this is our "chuck" size
-         */
-        room = RELOC(alloc_top) - RELOC(alloc_bottom) - 0x4000;
-        if (room > DEVTREE_CHUNK_SIZE)
-                room = DEVTREE_CHUNK_SIZE;
-        prom_debug("starting device tree allocs at %x\n", RELOC(alloc_bottom));
-
-        /* Now try to claim that */
-        mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);
-        if (mem_start == 0)
-                prom_panic("Can't allocate initial device-tree chunk\n");
-        mem_end = RELOC(alloc_top);
-
-        /* Get root of tree */
-        root = call_prom("peer", 1, 1, (phandle)0);
-        if (root == (phandle)0)
-                prom_panic ("couldn't get device tree root\n");
-
-        /* Build header and make room for mem rsv map */ 
-        mem_start = _ALIGN(mem_start, 4);
-        hdr = make_room(&mem_start, &mem_end,
-                        sizeof(struct boot_param_header), 4);
-        RELOC(dt_header_start) = (unsigned long)hdr;
-        rsvmap = make_room(&mem_start, &mem_end, sizeof(mem_reserve_map), 8);
-
-        /* Start of strings */
-        mem_start = PAGE_ALIGN(mem_start);
-        RELOC(dt_string_start) = mem_start;
-        mem_start += 4; /* hole */
-
-        /* Add "linux,phandle" in there, we'll need it */
-        namep = make_room(&mem_start, &mem_end, 16, 1);
-        strcpy(namep, RELOC("linux,phandle"));
-        mem_start = (unsigned long)namep + strlen(namep) + 1;
-
-        /* Build string array */
-        prom_printf("Building dt strings...\n"); 
-        scan_dt_build_strings(root, &mem_start, &mem_end);
-        RELOC(dt_string_end) = mem_start;
-
-        /* Build structure */
-        mem_start = PAGE_ALIGN(mem_start);
-        RELOC(dt_struct_start) = mem_start;
-        prom_printf("Building dt structure...\n"); 
-        scan_dt_build_struct(root, &mem_start, &mem_end);
-        dt_push_token(OF_DT_END, &mem_start, &mem_end);
-        RELOC(dt_struct_end) = PAGE_ALIGN(mem_start);
-
-        /* Finish header */
-        hdr->boot_cpuid_phys = _prom->cpu;
-        hdr->magic = OF_DT_HEADER;
-        hdr->totalsize = RELOC(dt_struct_end) - RELOC(dt_header_start);
-        hdr->off_dt_struct = RELOC(dt_struct_start) - RELOC(dt_header_start);
-        hdr->off_dt_strings = RELOC(dt_string_start) - RELOC(dt_header_start);
-        hdr->dt_strings_size = RELOC(dt_string_end) - RELOC(dt_string_start);
-        hdr->off_mem_rsvmap = ((unsigned long)rsvmap) - RELOC(dt_header_start);
-        hdr->version = OF_DT_VERSION;
-        /* Version 16 is not backward compatible */
-        hdr->last_comp_version = 0x10;
-
-        /* Reserve the whole thing and copy the reserve map in, we
-         * also bump mem_reserve_cnt to cause further reservations to
-         * fail since it's too late.
-         */
-        reserve_mem(RELOC(dt_header_start), hdr->totalsize);
-        memcpy(rsvmap, RELOC(mem_reserve_map), sizeof(mem_reserve_map));
-
-#ifdef DEBUG_PROM
-        {
-                int i;
-                prom_printf("reserved memory map:\n");
-                for (i = 0; i < RELOC(mem_reserve_cnt); i++)
-                        prom_printf("  %x - %x\n", RELOC(mem_reserve_map)[i].base,
-                                    RELOC(mem_reserve_map)[i].size);
-        }
-#endif
-        RELOC(mem_reserve_cnt) = MEM_RESERVE_MAP_SIZE;
-
-        prom_printf("Device tree strings 0x%x -> 0x%x\n",
-                    RELOC(dt_string_start), RELOC(dt_string_end)); 
-        prom_printf("Device tree struct  0x%x -> 0x%x\n",
-                    RELOC(dt_struct_start), RELOC(dt_struct_end));
-
-}
-
-
-static void __init fixup_device_tree(void)
-{
-        unsigned long offset = reloc_offset();
-        phandle u3, i2c, mpic;
-        u32 u3_rev;
-        u32 interrupts[2];
-        u32 parent;
-
-        /* Some G5s have a missing interrupt definition, fix it up here */
-        u3 = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000"));
-        if (!PHANDLE_VALID(u3))
-                return;
-        i2c = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/i2c@f8001000"));
-        if (!PHANDLE_VALID(i2c))
-                return;
-        mpic = call_prom("finddevice", 1, 1, ADDR("/u3@0,f8000000/mpic@f8040000"));
-        if (!PHANDLE_VALID(mpic))
-                return;
-
-        /* check if proper rev of u3 */
-        if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
-            == PROM_ERROR)
-                return;
-        if (u3_rev < 0x35 || u3_rev > 0x39)
-                return;
-        /* does it need fixup ? */
-        if (prom_getproplen(i2c, "interrupts") > 0)
-                return;
-
-        prom_printf("fixing up bogus interrupts for u3 i2c...\n");
-
-        /* interrupt on this revision of u3 is number 0 and level */
-        interrupts[0] = 0;
-        interrupts[1] = 1;
-        prom_setprop(i2c, "interrupts", &interrupts, sizeof(interrupts));
-        parent = (u32)mpic;
-        prom_setprop(i2c, "interrupt-parent", &parent, sizeof(parent));
-}
-
-
-static void __init prom_find_boot_cpu(void)
-{
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        u32 getprop_rval;
-        ihandle prom_cpu;
-        phandle cpu_pkg;
-
-        if (prom_getprop(_prom->chosen, "cpu", &prom_cpu, sizeof(prom_cpu)) <= 0)
-                prom_panic("cannot find boot cpu");
-
-        cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
-
-        prom_getprop(cpu_pkg, "reg", &getprop_rval, sizeof(getprop_rval));
-        _prom->cpu = getprop_rval;
-
-        prom_debug("Booting CPU hw index = 0x%x\n", _prom->cpu);
-}
-
-static void __init prom_check_initrd(unsigned long r3, unsigned long r4)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-
-        if ( r3 && r4 && r4 != 0xdeadbeef) {
-                u64 val;
-
-                RELOC(prom_initrd_start) = (r3 >= KERNELBASE) ? __pa(r3) : r3;
-                RELOC(prom_initrd_end) = RELOC(prom_initrd_start) + r4;
-
-                val = (u64)RELOC(prom_initrd_start);
-                prom_setprop(_prom->chosen, "linux,initrd-start", &val, sizeof(val));
-                val = (u64)RELOC(prom_initrd_end);
-                prom_setprop(_prom->chosen, "linux,initrd-end", &val, sizeof(val));
-
-                reserve_mem(RELOC(prom_initrd_start),
-                            RELOC(prom_initrd_end) - RELOC(prom_initrd_start));
-
-                prom_debug("initrd_start=0x%x\n", RELOC(prom_initrd_start));
-                prom_debug("initrd_end=0x%x\n", RELOC(prom_initrd_end));
-        }
-#endif /* CONFIG_BLK_DEV_INITRD */
-}
-
-/*
- * We enter here early on, when the Open Firmware prom is still
- * handling exceptions and the MMU hash table for us.
- */
-
-unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long pp,
-                               unsigned long r6, unsigned long r7)
-{       
-        unsigned long offset = reloc_offset();
-        struct prom_t *_prom = PTRRELOC(&prom);
-        unsigned long phys = KERNELBASE - offset;
-        u32 getprop_rval;
-        
-        /*
-         * First zero the BSS
-         */
-        memset(PTRRELOC(&__bss_start), 0, __bss_stop - __bss_start);
-
-        /*
-         * Init interface to Open Firmware, get some node references,
-         * like /chosen
-         */
-        prom_init_client_services(pp);
-
-        /*
-         * Init prom stdout device
-         */
-        prom_init_stdout();
-        prom_debug("klimit=0x%x\n", RELOC(klimit));
-        prom_debug("offset=0x%x\n", offset);
-
-        /*
-         * Check for an initrd
-         */
-        prom_check_initrd(r3, r4);
-
-        /*
-         * Get default machine type. At this point, we do not differenciate
-         * between pSeries SMP and pSeries LPAR
-         */
-        RELOC(of_platform) = prom_find_machine_type();
-        getprop_rval = RELOC(of_platform);
-        prom_setprop(_prom->chosen, "linux,platform",
-                     &getprop_rval, sizeof(getprop_rval));
-
-        /*
-         * On pSeries, inform the firmware about our capabilities
-         */
-        if (RELOC(of_platform) == PLATFORM_PSERIES ||
-            RELOC(of_platform) == PLATFORM_PSERIES_LPAR)
-                prom_send_capabilities();
-
-        /*
-         * On pSeries and Cell, copy the CPU hold code
-         */
-        if (RELOC(of_platform) & (PLATFORM_PSERIES | PLATFORM_CELL))
-                copy_and_flush(0, KERNELBASE - offset, 0x100, 0);
-
-        /*
-         * Get memory cells format
-         */
-        getprop_rval = 1;
-        prom_getprop(_prom->root, "#size-cells",
-                     &getprop_rval, sizeof(getprop_rval));
-        _prom->root_size_cells = getprop_rval;
-        getprop_rval = 2;
-        prom_getprop(_prom->root, "#address-cells",
-                     &getprop_rval, sizeof(getprop_rval));
-        _prom->root_addr_cells = getprop_rval;
-
-        /*
-         * Do early parsing of command line
-         */
-        early_cmdline_parse();
-
-        /*
-         * Initialize memory management within prom_init
-         */
-        prom_init_mem();
-
-        /*
-         * Determine which cpu is actually running right _now_
-         */
-        prom_find_boot_cpu();
-
-        /* 
-         * Initialize display devices
-         */
-        prom_check_displays();
-
-        /*
-         * Initialize IOMMU (TCE tables) on pSeries. Do that before anything else
-         * that uses the allocator, we need to make sure we get the top of memory
-         * available for us here...
-         */
-        if (RELOC(of_platform) == PLATFORM_PSERIES)
-                prom_initialize_tce_table();
-
-        /*
-         * On non-powermacs, try to instantiate RTAS and puts all CPUs
-         * in spin-loops. PowerMacs don't have a working RTAS and use
-         * a different way to spin CPUs
-         */
-        if (RELOC(of_platform) != PLATFORM_POWERMAC) {
-                prom_instantiate_rtas();
-                prom_hold_cpus();
-        }
-
-        /*
-         * Fill in some infos for use by the kernel later on
-         */
-        if (RELOC(ppc64_iommu_off))
-                prom_setprop(_prom->chosen, "linux,iommu-off", NULL, 0);
-
-        if (RELOC(iommu_force_on))
-                prom_setprop(_prom->chosen, "linux,iommu-force-on", NULL, 0);
-
-        if (RELOC(prom_memory_limit))
-                prom_setprop(_prom->chosen, "linux,memory-limit",
-                        PTRRELOC(&prom_memory_limit), sizeof(RELOC(prom_memory_limit)));
-
-        if (RELOC(prom_tce_alloc_start)) {
-                prom_setprop(_prom->chosen, "linux,tce-alloc-start",
-                        PTRRELOC(&prom_tce_alloc_start), sizeof(RELOC(prom_tce_alloc_start)));
-                prom_setprop(_prom->chosen, "linux,tce-alloc-end",
-                        PTRRELOC(&prom_tce_alloc_end), sizeof(RELOC(prom_tce_alloc_end)));
-        }
-
-        /*
-         * Fixup any known bugs in the device-tree
-         */
-        fixup_device_tree();
-
-        /*
-         * Now finally create the flattened device-tree
-         */
-        prom_printf("copying OF device tree ...\n");
-        flatten_device_tree();
-
-        /* in case stdin is USB and still active on IBM machines... */
-        prom_close_stdin();
-
-        /*
-         * Call OF "quiesce" method to shut down pending DMA's from
-         * devices etc...
-         */
-        prom_printf("Calling quiesce ...\n");
-        call_prom("quiesce", 0, 0);
-
-        /*
-         * And finally, call the kernel passing it the flattened device
-         * tree and NULL as r5, thus triggering the new entry point which
-         * is common to us and kexec
-         */
-        prom_printf("returning from prom_init\n");
-        prom_debug("->dt_header_start=0x%x\n", RELOC(dt_header_start));
-        prom_debug("->phys=0x%x\n", phys);
-
-        __start(RELOC(dt_header_start), phys, 0);
-
-        return 0;
-}
-
diff --git a/arch/ppc64/kernel/rtc.c b/arch/ppc64/kernel/rtc.c
deleted file mode 100644
index 79e7ed2858dd..000000000000
--- a/arch/ppc64/kernel/rtc.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
- *      Real Time Clock interface for PPC64.
- *
- *      Based on rtc.c by Paul Gortmaker
- *
- *      This driver allows use of the real time clock
- *      from user space. It exports the /dev/rtc
- *      interface supporting various ioctl() and also the
- *      /proc/driver/rtc pseudo-file for status information.
- *
- *      Interface does not support RTC interrupts nor an alarm.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- *
- *      1.0     Mike Corrigan:    IBM iSeries rtc support
- *      1.1     Dave Engebretsen: IBM pSeries rtc support
- */
-
-#define RTC_VERSION             "1.1"
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/miscdevice.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/mc146818rtc.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/bcd.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/time.h>
-#include <asm/rtas.h>
-
-#include <asm/machdep.h>
-
-/*
- *      We sponge a minor off of the misc major. No need slurping
- *      up another valuable major dev number for this. If you add
- *      an ioctl, make sure you don't conflict with SPARC's RTC
- *      ioctls.
- */
-
-static ssize_t rtc_read(struct file *file, char __user *buf,
-                        size_t count, loff_t *ppos);
-
-static int rtc_ioctl(struct inode *inode, struct file *file,
-                     unsigned int cmd, unsigned long arg);
-
-static int rtc_read_proc(char *page, char **start, off_t off,
-                         int count, int *eof, void *data);
-
-/*
- *      If this driver ever becomes modularised, it will be really nice
- *      to make the epoch retain its value across module reload...
- */
-
-static unsigned long epoch = 1900;      /* year corresponding to 0x00   */
-
-static const unsigned char days_in_mo[] = 
-{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
-
-/*
- *      Now all the various file operations that we export.
- */
-
-static ssize_t rtc_read(struct file *file, char __user *buf,
-                        size_t count, loff_t *ppos)
-{
-        return -EIO;
-}
-
-static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-                     unsigned long arg)
-{
-        struct rtc_time wtime; 
-
-        switch (cmd) {
-        case RTC_RD_TIME:       /* Read the time/date from RTC  */
-        {
-                memset(&wtime, 0, sizeof(struct rtc_time));
-                ppc_md.get_rtc_time(&wtime);
-                break;
-        }
-        case RTC_SET_TIME:      /* Set the RTC */
-        {
-                struct rtc_time rtc_tm;
-                unsigned char mon, day, hrs, min, sec, leap_yr;
-                unsigned int yrs;
-
-                if (!capable(CAP_SYS_TIME))
-                        return -EACCES;
-
-                if (copy_from_user(&rtc_tm, (struct rtc_time __user *)arg,
-                                   sizeof(struct rtc_time)))
-                        return -EFAULT;
-
-                yrs = rtc_tm.tm_year;
-                mon = rtc_tm.tm_mon + 1;   /* tm_mon starts at zero */
-                day = rtc_tm.tm_mday;
-                hrs = rtc_tm.tm_hour;
-                min = rtc_tm.tm_min;
-                sec = rtc_tm.tm_sec;
-
-                if (yrs < 70)
-                        return -EINVAL;
-
-                leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
-                if ((mon > 12) || (day == 0))
-                        return -EINVAL;
-
-                if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
-                        return -EINVAL;
-                        
-                if ((hrs >= 24) || (min >= 60) || (sec >= 60))
-                        return -EINVAL;
-
-                if ( yrs > 169 )
-                        return -EINVAL;
-
-                ppc_md.set_rtc_time(&rtc_tm);
-                
-                return 0;
-        }
-        case RTC_EPOCH_READ:    /* Read the epoch.      */
-        {
-                return put_user (epoch, (unsigned long __user *)arg);
-        }
-        case RTC_EPOCH_SET:     /* Set the epoch.       */
-        {
-                /* 
-                 * There were no RTC clocks before 1900.
-                 */
-                if (arg < 1900)
-                        return -EINVAL;
-
-                if (!capable(CAP_SYS_TIME))
-                        return -EACCES;
-
-                epoch = arg;
-                return 0;
-        }
-        default:
-                return -EINVAL;
-        }
-        return copy_to_user((void __user *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-static int rtc_open(struct inode *inode, struct file *file)
-{
-        nonseekable_open(inode, file);
-        return 0;
-}
-
-static int rtc_release(struct inode *inode, struct file *file)
-{
-        return 0;
-}
-
-/*
- *      The various file operations we support.
- */
-static struct file_operations rtc_fops = {
-        .owner =        THIS_MODULE,
-        .llseek =       no_llseek,
-        .read =         rtc_read,
-        .ioctl =        rtc_ioctl,
-        .open =         rtc_open,
-        .release =      rtc_release,
-};
-
-static struct miscdevice rtc_dev = {
-        .minor =        RTC_MINOR,
-        .name =         "rtc",
-        .fops =         &rtc_fops
-};
-
-static int __init rtc_init(void)
-{
-        int retval;
-
-        retval = misc_register(&rtc_dev);
-        if(retval < 0)
-                return retval;
-
-#ifdef CONFIG_PROC_FS
-        if (create_proc_read_entry("driver/rtc", 0, NULL, rtc_read_proc, NULL)
-                        == NULL) {
-                misc_deregister(&rtc_dev);
-                return -ENOMEM;
-        }
-#endif
-
-        printk(KERN_INFO "i/pSeries Real Time Clock Driver v" RTC_VERSION "\n");
-
-        return 0;
-}
-
-static void __exit rtc_exit (void)
-{
-        remove_proc_entry ("driver/rtc", NULL);
-        misc_deregister(&rtc_dev);
-}
-
-module_init(rtc_init);
-module_exit(rtc_exit);
-
-/*
- *      Info exported via "/proc/driver/rtc".
- */
-
-static int rtc_proc_output (char *buf)
-{
-        
-        char *p;
-        struct rtc_time tm;
-        
-        p = buf;
-
-        ppc_md.get_rtc_time(&tm);
-
-        /*
-         * There is no way to tell if the luser has the RTC set for local
-         * time or for Universal Standard Time (GMT). Probably local though.
-         */
-        p += sprintf(p,
-                     "rtc_time\t: %02d:%02d:%02d\n"
-                     "rtc_date\t: %04d-%02d-%02d\n"
-                     "rtc_epoch\t: %04lu\n",
-                     tm.tm_hour, tm.tm_min, tm.tm_sec,
-                     tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, epoch);
-
-        p += sprintf(p,
-                     "DST_enable\t: no\n"
-                     "BCD\t\t: yes\n"
-                     "24hr\t\t: yes\n" );
-
-        return  p - buf;
-}
-
-static int rtc_read_proc(char *page, char **start, off_t off,
-                         int count, int *eof, void *data)
-{
-        int len = rtc_proc_output (page);
-        if (len <= off+count) *eof = 1;
-        *start = page + off;
-        len -= off;
-        if (len>count) len = count;
-        if (len<0) len = 0;
-        return len;
-}
-
-#ifdef CONFIG_PPC_RTAS
-#define MAX_RTC_WAIT 5000       /* 5 sec */
-#define RTAS_CLOCK_BUSY (-2)
-unsigned long rtas_get_boot_time(void)
-{
-        int ret[8];
-        int error, wait_time;
-        unsigned long max_wait_tb;
-
-        max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
-        do {
-                error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret);
-                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
-                        wait_time = rtas_extended_busy_delay_time(error);
-                        /* This is boot time so we spin. */
-                        udelay(wait_time*1000);
-                        error = RTAS_CLOCK_BUSY;
-                }
-        } while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
-
-        if (error != 0 && printk_ratelimit()) {
-                printk(KERN_WARNING "error: reading the clock failed (%d)\n",
-                        error);
-                return 0;
-        }
-
-        return mktime(ret[0], ret[1], ret[2], ret[3], ret[4], ret[5]);
-}
-
-/* NOTE: get_rtc_time will get an error if executed in interrupt context
- * and if a delay is needed to read the clock.  In this case we just
- * silently return without updating rtc_tm.
- */
-void rtas_get_rtc_time(struct rtc_time *rtc_tm)
-{
-        int ret[8];
-        int error, wait_time;
-        unsigned long max_wait_tb;
-
-        max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
-        do {
-                error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret);
-                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
-                        if (in_interrupt() && printk_ratelimit()) {
-                                printk(KERN_WARNING "error: reading clock would delay interrupt\n");
-                                return; /* delay not allowed */
-                        }
-                        wait_time = rtas_extended_busy_delay_time(error);
-                        msleep_interruptible(wait_time);
-                        error = RTAS_CLOCK_BUSY;
-                }
-        } while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
-
-        if (error != 0 && printk_ratelimit()) {
-                printk(KERN_WARNING "error: reading the clock failed (%d)\n",
-                       error);
-                return;
-        }
-
-        rtc_tm->tm_sec = ret[5];
-        rtc_tm->tm_min = ret[4];
-        rtc_tm->tm_hour = ret[3];
-        rtc_tm->tm_mday = ret[2];
-        rtc_tm->tm_mon = ret[1] - 1;
-        rtc_tm->tm_year = ret[0] - 1900;
-}
-
-int rtas_set_rtc_time(struct rtc_time *tm)
-{
-        int error, wait_time;
-        unsigned long max_wait_tb;
-
-        max_wait_tb = __get_tb() + tb_ticks_per_usec * 1000 * MAX_RTC_WAIT;
-        do {
-                error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL,
-                                  tm->tm_year + 1900, tm->tm_mon + 1, 
-                                  tm->tm_mday, tm->tm_hour, tm->tm_min, 
-                                  tm->tm_sec, 0);
-                if (error == RTAS_CLOCK_BUSY || rtas_is_extended_busy(error)) {
-                        if (in_interrupt())
-                                return 1;       /* probably decrementer */
-                        wait_time = rtas_extended_busy_delay_time(error);
-                        msleep_interruptible(wait_time);
-                        error = RTAS_CLOCK_BUSY;
-                }
-        } while (error == RTAS_CLOCK_BUSY && (__get_tb() < max_wait_tb));
-
-        if (error != 0 && printk_ratelimit())
-                printk(KERN_WARNING "error: setting the clock failed (%d)\n",
-                       error); 
-
-        return 0;
-}
-#endif
diff --git a/arch/ppc64/kernel/semaphore.c b/arch/ppc64/kernel/semaphore.c
deleted file mode 100644
index a1c1db573e9c..000000000000
--- a/arch/ppc64/kernel/semaphore.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * 
- *
- * PowerPC-specific semaphore code.
- *
- * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * April 2001 - Reworked by Paul Mackerras <paulus@samba.org>
- * to eliminate the SMP races in the old version between the updates
- * of `count' and `waking'.  Now we use negative `count' values to
- * indicate that some process(es) are waiting for the semaphore.
- */
-
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/module.h>
-
-#include <asm/atomic.h>
-#include <asm/semaphore.h>
-#include <asm/errno.h>
-
-/*
- * Atomically update sem->count.
- * This does the equivalent of the following:
- *
- *      old_count = sem->count;
- *      tmp = MAX(old_count, 0) + incr;
- *      sem->count = tmp;
- *      return old_count;
- */
-static inline int __sem_update_count(struct semaphore *sem, int incr)
-{
-        int old_count, tmp;
-
-        __asm__ __volatile__("\n"
-"1:     lwarx   %0,0,%3\n"
-"       srawi   %1,%0,31\n"
-"       andc    %1,%0,%1\n"
-"       add     %1,%1,%4\n"
-"       stwcx.  %1,0,%3\n"
-"       bne     1b"
-        : "=&r" (old_count), "=&r" (tmp), "=m" (sem->count)
-        : "r" (&sem->count), "r" (incr), "m" (sem->count)
-        : "cc");
-
-        return old_count;
-}
-
-void __up(struct semaphore *sem)
-{
-        /*
-         * Note that we incremented count in up() before we came here,
-         * but that was ineffective since the result was <= 0, and
-         * any negative value of count is equivalent to 0.
-         * This ends up setting count to 1, unless count is now > 0
-         * (i.e. because some other cpu has called up() in the meantime),
-         * in which case we just increment count.
-         */
-        __sem_update_count(sem, 1);
-        wake_up(&sem->wait);
-}
-EXPORT_SYMBOL(__up);
-
-/*
- * Note that when we come in to __down or __down_interruptible,
- * we have already decremented count, but that decrement was
- * ineffective since the result was < 0, and any negative value
- * of count is equivalent to 0.
- * Thus it is only when we decrement count from some value > 0
- * that we have actually got the semaphore.
- */
-void __sched __down(struct semaphore *sem)
-{
-        struct task_struct *tsk = current;
-        DECLARE_WAITQUEUE(wait, tsk);
-
-        __set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-        add_wait_queue_exclusive(&sem->wait, &wait);
-
-        /*
-         * Try to get the semaphore.  If the count is > 0, then we've
-         * got the semaphore; we decrement count and exit the loop.
-         * If the count is 0 or negative, we set it to -1, indicating
-         * that we are asleep, and then sleep.
-         */
-        while (__sem_update_count(sem, -1) <= 0) {
-                schedule();
-                set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-        }
-        remove_wait_queue(&sem->wait, &wait);
-        __set_task_state(tsk, TASK_RUNNING);
-
-        /*
-         * If there are any more sleepers, wake one of them up so
-         * that it can either get the semaphore, or set count to -1
-         * indicating that there are still processes sleeping.
-         */
-        wake_up(&sem->wait);
-}
-EXPORT_SYMBOL(__down);
-
-int __sched __down_interruptible(struct semaphore * sem)
-{
-        int retval = 0;
-        struct task_struct *tsk = current;
-        DECLARE_WAITQUEUE(wait, tsk);
-
-        __set_task_state(tsk, TASK_INTERRUPTIBLE);
-        add_wait_queue_exclusive(&sem->wait, &wait);
-
-        while (__sem_update_count(sem, -1) <= 0) {
-                if (signal_pending(current)) {
-                        /*
-                         * A signal is pending - give up trying.
-                         * Set sem->count to 0 if it is negative,
-                         * since we are no longer sleeping.
-                         */
-                        __sem_update_count(sem, 0);
-                        retval = -EINTR;
-                        break;
-                }
-                schedule();
-                set_task_state(tsk, TASK_INTERRUPTIBLE);
-        }
-        remove_wait_queue(&sem->wait, &wait);
-        __set_task_state(tsk, TASK_RUNNING);
-
-        wake_up(&sem->wait);
-        return retval;
-}
-EXPORT_SYMBOL(__down_interruptible);
diff --git a/arch/ppc64/kernel/vdso.c b/arch/ppc64/kernel/vdso.c
deleted file mode 100644
index 1bbacac44988..000000000000
--- a/arch/ppc64/kernel/vdso.c
+++ /dev/null
@@ -1,625 +0,0 @@
-/*
- *  linux/arch/ppc64/kernel/vdso.c
- *
- *    Copyright (C) 2004 Benjamin Herrenschmidt, IBM Corp.
- *                       <benh@kernel.crashing.org>
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/elf.h>
-#include <linux/security.h>
-#include <linux/bootmem.h>
-
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/mmu_context.h>
-#include <asm/machdep.h>
-#include <asm/cputable.h>
-#include <asm/sections.h>
-#include <asm/systemcfg.h>
-#include <asm/vdso.h>
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(fmt...) printk(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-
-/*
- * The vDSOs themselves are here
- */
-extern char vdso64_start, vdso64_end;
-extern char vdso32_start, vdso32_end;
-
-static void *vdso64_kbase = &vdso64_start;
-static void *vdso32_kbase = &vdso32_start;
-
-unsigned int vdso64_pages;
-unsigned int vdso32_pages;
-
-/* Signal trampolines user addresses */
-
-unsigned long vdso64_rt_sigtramp;
-unsigned long vdso32_sigtramp;
-unsigned long vdso32_rt_sigtramp;
-
-/* Format of the patch table */
-struct vdso_patch_def
-{
-        u32             pvr_mask, pvr_value;
-        const char      *gen_name;
-        const char      *fix_name;
-};
-
-/* Table of functions to patch based on the CPU type/revision
- *
- * TODO: Improve by adding whole lists for each entry
- */
-static struct vdso_patch_def vdso_patches[] = {
-        {
-                0xffff0000, 0x003a0000,         /* POWER5 */
-                "__kernel_sync_dicache", "__kernel_sync_dicache_p5"
-        },
-        {
-                0xffff0000, 0x003b0000,         /* POWER5 */
-                "__kernel_sync_dicache", "__kernel_sync_dicache_p5"
-        },
-};
-
-/*
- * Some infos carried around for each of them during parsing at
- * boot time.
- */
-struct lib32_elfinfo
-{
-        Elf32_Ehdr      *hdr;           /* ptr to ELF */
-        Elf32_Sym       *dynsym;        /* ptr to .dynsym section */
-        unsigned long   dynsymsize;     /* size of .dynsym section */
-        char            *dynstr;        /* ptr to .dynstr section */
-        unsigned long   text;           /* offset of .text section in .so */
-};
-
-struct lib64_elfinfo
-{
-        Elf64_Ehdr      *hdr;
-        Elf64_Sym       *dynsym;
-        unsigned long   dynsymsize;
-        char            *dynstr;
-        unsigned long   text;
-};
-
-
-#ifdef __DEBUG
-static void dump_one_vdso_page(struct page *pg, struct page *upg)
-{
-        printk("kpg: %p (c:%d,f:%08lx)", __va(page_to_pfn(pg) << PAGE_SHIFT),
-               page_count(pg),
-               pg->flags);
-        if (upg/* && pg != upg*/) {
-                printk(" upg: %p (c:%d,f:%08lx)", __va(page_to_pfn(upg) << PAGE_SHIFT),
-                       page_count(upg),
-                       upg->flags);
-        }
-        printk("\n");
-}
-
-static void dump_vdso_pages(struct vm_area_struct * vma)
-{
-        int i;
-
-        if (!vma || test_thread_flag(TIF_32BIT)) {
-                printk("vDSO32 @ %016lx:\n", (unsigned long)vdso32_kbase);
-                for (i=0; i<vdso32_pages; i++) {
-                        struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
-                        struct page *upg = (vma && vma->vm_mm) ?
-                                follow_page(vma->vm_mm, vma->vm_start + i*PAGE_SIZE, 0)
-                                : NULL;
-                        dump_one_vdso_page(pg, upg);
-                }
-        }
-        if (!vma || !test_thread_flag(TIF_32BIT)) {
-                printk("vDSO64 @ %016lx:\n", (unsigned long)vdso64_kbase);
-                for (i=0; i<vdso64_pages; i++) {
-                        struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
-                        struct page *upg = (vma && vma->vm_mm) ?
-                                follow_page(vma->vm_mm, vma->vm_start + i*PAGE_SIZE, 0)
-                                : NULL;
-                        dump_one_vdso_page(pg, upg);
-                }
-        }
-}
-#endif /* DEBUG */
-
-/*
- * Keep a dummy vma_close for now, it will prevent VMA merging.
- */
-static void vdso_vma_close(struct vm_area_struct * vma)
-{
-}
-
-/*
- * Our nopage() function, maps in the actual vDSO kernel pages, they will
- * be mapped read-only by do_no_page(), and eventually COW'ed, either
- * right away for an initial write access, or by do_wp_page().
- */
-static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
-                                     unsigned long address, int *type)
-{
-        unsigned long offset = address - vma->vm_start;
-        struct page *pg;
-        void *vbase = test_thread_flag(TIF_32BIT) ? vdso32_kbase : vdso64_kbase;
-
-        DBG("vdso_vma_nopage(current: %s, address: %016lx, off: %lx)\n",
-            current->comm, address, offset);
-
-        if (address < vma->vm_start || address > vma->vm_end)
-                return NOPAGE_SIGBUS;
-
-        /*
-         * Last page is systemcfg.
-         */
-        if ((vma->vm_end - address) <= PAGE_SIZE)
-                pg = virt_to_page(_systemcfg);
-        else
-                pg = virt_to_page(vbase + offset);
-
-        get_page(pg);
-        DBG(" ->page count: %d\n", page_count(pg));
-
-        return pg;
-}
-
-static struct vm_operations_struct vdso_vmops = {
-        .close  = vdso_vma_close,
-        .nopage = vdso_vma_nopage,
-};
-
-/*
- * This is called from binfmt_elf, we create the special vma for the
- * vDSO and insert it into the mm struct tree
- */
-int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack)
-{
-        struct mm_struct *mm = current->mm;
-        struct vm_area_struct *vma;
-        unsigned long vdso_pages;
-        unsigned long vdso_base;
-
-        if (test_thread_flag(TIF_32BIT)) {
-                vdso_pages = vdso32_pages;
-                vdso_base = VDSO32_MBASE;
-        } else {
-                vdso_pages = vdso64_pages;
-                vdso_base = VDSO64_MBASE;
-        }
-
-        current->thread.vdso_base = 0;
-
-        /* vDSO has a problem and was disabled, just don't "enable" it for the
-         * process
-         */
-        if (vdso_pages == 0)
-                return 0;
-
-        vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
-        if (vma == NULL)
-                return -ENOMEM;
-
-        memset(vma, 0, sizeof(*vma));
-
-        /*
-         * pick a base address for the vDSO in process space. We try to put it
-         * at vdso_base which is the "natural" base for it, but we might fail
-         * and end up putting it elsewhere.
-         */
-        vdso_base = get_unmapped_area(NULL, vdso_base,
-                                      vdso_pages << PAGE_SHIFT, 0, 0);
-        if (vdso_base & ~PAGE_MASK) {
-                kmem_cache_free(vm_area_cachep, vma);
-                return (int)vdso_base;
-        }
-
-        current->thread.vdso_base = vdso_base;
-
-        vma->vm_mm = mm;
-        vma->vm_start = current->thread.vdso_base;
-
-        /*
-         * the VMA size is one page more than the vDSO since systemcfg
-         * is mapped in the last one
-         */
-        vma->vm_end = vma->vm_start + ((vdso_pages + 1) << PAGE_SHIFT);
-
-        /*
-         * our vma flags don't have VM_WRITE so by default, the process isn't allowed
-         * to write those pages.
-         * gdb can break that with ptrace interface, and thus trigger COW on those
-         * pages but it's then your responsibility to never do that on the "data" page
-         * of the vDSO or you'll stop getting kernel updates and your nice userland
-         * gettimeofday will be totally dead. It's fine to use that for setting
-         * breakpoints in the vDSO code pages though
-         */
-        vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC | VM_RESERVED;
-        vma->vm_flags |= mm->def_flags;
-        vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
-        vma->vm_ops = &vdso_vmops;
-
-        down_write(&mm->mmap_sem);
-        if (insert_vm_struct(mm, vma)) {
-                up_write(&mm->mmap_sem);
-                kmem_cache_free(vm_area_cachep, vma);
-                return -ENOMEM;
-        }
-        mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
-        up_write(&mm->mmap_sem);
-
-        return 0;
-}
-
-static void * __init find_section32(Elf32_Ehdr *ehdr, const char *secname,
-                                  unsigned long *size)
-{
-        Elf32_Shdr *sechdrs;
-        unsigned int i;
-        char *secnames;
-
-        /* Grab section headers and strings so we can tell who is who */
-        sechdrs = (void *)ehdr + ehdr->e_shoff;
-        secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
-
-        /* Find the section they want */
-        for (i = 1; i < ehdr->e_shnum; i++) {
-                if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
-                        if (size)
-                                *size = sechdrs[i].sh_size;
-                        return (void *)ehdr + sechdrs[i].sh_offset;
-                }
-        }
-        *size = 0;
-        return NULL;
-}
-
-static void * __init find_section64(Elf64_Ehdr *ehdr, const char *secname,
-                                  unsigned long *size)
-{
-        Elf64_Shdr *sechdrs;
-        unsigned int i;
-        char *secnames;
-
-        /* Grab section headers and strings so we can tell who is who */
-        sechdrs = (void *)ehdr + ehdr->e_shoff;
-        secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
-
-        /* Find the section they want */
-        for (i = 1; i < ehdr->e_shnum; i++) {
-                if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
-                        if (size)
-                                *size = sechdrs[i].sh_size;
-                        return (void *)ehdr + sechdrs[i].sh_offset;
-                }
-        }
-        if (size)
-                *size = 0;
-        return NULL;
-}
-
-static Elf32_Sym * __init find_symbol32(struct lib32_elfinfo *lib, const char *symname)
-{
-        unsigned int i;
-        char name[32], *c;
-
-        for (i = 0; i < (lib->dynsymsize / sizeof(Elf32_Sym)); i++) {
-                if (lib->dynsym[i].st_name == 0)
-                        continue;
-                strlcpy(name, lib->dynstr + lib->dynsym[i].st_name, 32);
-                c = strchr(name, '@');
-                if (c)
-                        *c = 0;
-                if (strcmp(symname, name) == 0)
-                        return &lib->dynsym[i];
-        }
-        return NULL;
-}
-
-static Elf64_Sym * __init find_symbol64(struct lib64_elfinfo *lib, const char *symname)
-{
-        unsigned int i;
-        char name[32], *c;
-
-        for (i = 0; i < (lib->dynsymsize / sizeof(Elf64_Sym)); i++) {
-                if (lib->dynsym[i].st_name == 0)
-                        continue;
-                strlcpy(name, lib->dynstr + lib->dynsym[i].st_name, 32);
-                c = strchr(name, '@');
-                if (c)
-                        *c = 0;
-                if (strcmp(symname, name) == 0)
-                        return &lib->dynsym[i];
-        }
-        return NULL;
-}
-
-/* Note that we assume the section is .text and the symbol is relative to
- * the library base
- */
-static unsigned long __init find_function32(struct lib32_elfinfo *lib, const char *symname)
-{
-        Elf32_Sym *sym = find_symbol32(lib, symname);
-
-        if (sym == NULL) {
-                printk(KERN_WARNING "vDSO32: function %s not found !\n", symname);
-                return 0;
-        }
-        return sym->st_value - VDSO32_LBASE;
-}
-
-/* Note that we assume the section is .text and the symbol is relative to
- * the library base
- */
-static unsigned long __init find_function64(struct lib64_elfinfo *lib, const char *symname)
-{
-        Elf64_Sym *sym = find_symbol64(lib, symname);
-
-        if (sym == NULL) {
-                printk(KERN_WARNING "vDSO64: function %s not found !\n", symname);
-                return 0;
-        }
-#ifdef VDS64_HAS_DESCRIPTORS
-        return *((u64 *)(vdso64_kbase + sym->st_value - VDSO64_LBASE)) - VDSO64_LBASE;
-#else
-        return sym->st_value - VDSO64_LBASE;
-#endif
-}
-
-
-static __init int vdso_do_find_sections(struct lib32_elfinfo *v32,
-                                        struct lib64_elfinfo *v64)
-{
-        void *sect;
-
-        /*
-         * Locate symbol tables & text section
-         */
-
-        v32->dynsym = find_section32(v32->hdr, ".dynsym", &v32->dynsymsize);
-        v32->dynstr = find_section32(v32->hdr, ".dynstr", NULL);
-        if (v32->dynsym == NULL || v32->dynstr == NULL) {
-                printk(KERN_ERR "vDSO32: a required symbol section was not found\n");
-                return -1;
-        }
-        sect = find_section32(v32->hdr, ".text", NULL);
-        if (sect == NULL) {
-                printk(KERN_ERR "vDSO32: the .text section was not found\n");
-                return -1;
-        }
-        v32->text = sect - vdso32_kbase;
-
-        v64->dynsym = find_section64(v64->hdr, ".dynsym", &v64->dynsymsize);
-        v64->dynstr = find_section64(v64->hdr, ".dynstr", NULL);
-        if (v64->dynsym == NULL || v64->dynstr == NULL) {
-                printk(KERN_ERR "vDSO64: a required symbol section was not found\n");
-                return -1;
-        }
-        sect = find_section64(v64->hdr, ".text", NULL);
-        if (sect == NULL) {
-                printk(KERN_ERR "vDSO64: the .text section was not found\n");
-                return -1;
-        }
-        v64->text = sect - vdso64_kbase;
-
-        return 0;
-}
-
-static __init void vdso_setup_trampolines(struct lib32_elfinfo *v32,
-                                          struct lib64_elfinfo *v64)
-{
-        /*
-         * Find signal trampolines
-         */
-
-        vdso64_rt_sigtramp      = find_function64(v64, "__kernel_sigtramp_rt64");
-        vdso32_sigtramp         = find_function32(v32, "__kernel_sigtramp32");
-        vdso32_rt_sigtramp      = find_function32(v32, "__kernel_sigtramp_rt32");
-}
-
-static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32,
-                                       struct lib64_elfinfo *v64)
-{
-        Elf32_Sym *sym32;
-        Elf64_Sym *sym64;
-
-        sym32 = find_symbol32(v32, "__kernel_datapage_offset");
-        if (sym32 == NULL) {
-                printk(KERN_ERR "vDSO32: Can't find symbol __kernel_datapage_offset !\n");
-                return -1;
-        }
-        *((int *)(vdso32_kbase + (sym32->st_value - VDSO32_LBASE))) =
-                (vdso32_pages << PAGE_SHIFT) - (sym32->st_value - VDSO32_LBASE);
-
-        sym64 = find_symbol64(v64, "__kernel_datapage_offset");
-        if (sym64 == NULL) {
-                printk(KERN_ERR "vDSO64: Can't find symbol __kernel_datapage_offset !\n");
-                return -1;
-        }
-        *((int *)(vdso64_kbase + sym64->st_value - VDSO64_LBASE)) =
-                (vdso64_pages << PAGE_SHIFT) - (sym64->st_value - VDSO64_LBASE);
-
-        return 0;
-}
-
-static int vdso_do_func_patch32(struct lib32_elfinfo *v32,
-                                struct lib64_elfinfo *v64,
-                                const char *orig, const char *fix)
-{
-        Elf32_Sym *sym32_gen, *sym32_fix;
-
-        sym32_gen = find_symbol32(v32, orig);
-        if (sym32_gen == NULL) {
-                printk(KERN_ERR "vDSO32: Can't find symbol %s !\n", orig);
-                return -1;
-        }
-        sym32_fix = find_symbol32(v32, fix);
-        if (sym32_fix == NULL) {
-                printk(KERN_ERR "vDSO32: Can't find symbol %s !\n", fix);
-                return -1;
-        }
-        sym32_gen->st_value = sym32_fix->st_value;
-        sym32_gen->st_size = sym32_fix->st_size;
-        sym32_gen->st_info = sym32_fix->st_info;
-        sym32_gen->st_other = sym32_fix->st_other;
-        sym32_gen->st_shndx = sym32_fix->st_shndx;
-
-        return 0;
-}
-
-static int vdso_do_func_patch64(struct lib32_elfinfo *v32,
-                                struct lib64_elfinfo *v64,
-                                const char *orig, const char *fix)
-{
-        Elf64_Sym *sym64_gen, *sym64_fix;
-
-        sym64_gen = find_symbol64(v64, orig);
-        if (sym64_gen == NULL) {
-                printk(KERN_ERR "vDSO64: Can't find symbol %s !\n", orig);
-                return -1;
-        }
-        sym64_fix = find_symbol64(v64, fix);
-        if (sym64_fix == NULL) {
-                printk(KERN_ERR "vDSO64: Can't find symbol %s !\n", fix);
-                return -1;
-        }
-        sym64_gen->st_value = sym64_fix->st_value;
-        sym64_gen->st_size = sym64_fix->st_size;
-        sym64_gen->st_info = sym64_fix->st_info;
-        sym64_gen->st_other = sym64_fix->st_other;
-        sym64_gen->st_shndx = sym64_fix->st_shndx;
-
-        return 0;
-}
-
-static __init int vdso_fixup_alt_funcs(struct lib32_elfinfo *v32,
-                                       struct lib64_elfinfo *v64)
-{
-        u32 pvr;
-        int i;
-
-        pvr = mfspr(SPRN_PVR);
-        for (i = 0; i < ARRAY_SIZE(vdso_patches); i++) {
-                struct vdso_patch_def *patch = &vdso_patches[i];
-                int match = (pvr & patch->pvr_mask) == patch->pvr_value;
-
-                DBG("patch %d (mask: %x, pvr: %x) : %s\n",
-                    i, patch->pvr_mask, patch->pvr_value, match ? "match" : "skip");
-
-                if (!match)
-                        continue;
-
-                DBG("replacing %s with %s...\n", patch->gen_name, patch->fix_name);
-
-                /*
-                 * Patch the 32 bits and 64 bits symbols. Note that we do not patch
-                 * the "." symbol on 64 bits. It would be easy to do, but doesn't
-                 * seem to be necessary, patching the OPD symbol is enough.
-                 */
-                vdso_do_func_patch32(v32, v64, patch->gen_name, patch->fix_name);
-                vdso_do_func_patch64(v32, v64, patch->gen_name, patch->fix_name);
-        }
-
-        return 0;
-}
-
-
-static __init int vdso_setup(void)
-{
-        struct lib32_elfinfo    v32;
-        struct lib64_elfinfo    v64;
-
-        v32.hdr = vdso32_kbase;
-        v64.hdr = vdso64_kbase;
-
-        if (vdso_do_find_sections(&v32, &v64))
-                return -1;
-
-        if (vdso_fixup_datapage(&v32, &v64))
-                return -1;
-
-        if (vdso_fixup_alt_funcs(&v32, &v64))
-                return -1;
-
-        vdso_setup_trampolines(&v32, &v64);
-
-        return 0;
-}
-
-void __init vdso_init(void)
-{
-        int i;
-
-        vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT;
-        vdso32_pages = (&vdso32_end - &vdso32_start) >> PAGE_SHIFT;
-
-        DBG("vdso64_kbase: %p, 0x%x pages, vdso32_kbase: %p, 0x%x pages\n",
-               vdso64_kbase, vdso64_pages, vdso32_kbase, vdso32_pages);
-
-        /*
-         * Initialize the vDSO images in memory, that is do necessary
-         * fixups of vDSO symbols, locate trampolines, etc...
-         */
-        if (vdso_setup()) {
-                printk(KERN_ERR "vDSO setup failure, not enabled !\n");
-                /* XXX should free pages here ? */
-                vdso64_pages = vdso32_pages = 0;
-                return;
-        }
-
-        /* Make sure pages are in the correct state */
-        for (i = 0; i < vdso64_pages; i++) {
-                struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
-                ClearPageReserved(pg);
-                get_page(pg);
-        }
-        for (i = 0; i < vdso32_pages; i++) {
-                struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
-                ClearPageReserved(pg);
-                get_page(pg);
-        }
-
-        get_page(virt_to_page(_systemcfg));
-}
-
-int in_gate_area_no_task(unsigned long addr)
-{
-        return 0;
-}
-
-int in_gate_area(struct task_struct *task, unsigned long addr)
-{
-        return 0;
-}
-
-struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
-{
-        return NULL;
-}
-
diff --git a/arch/ppc64/kernel/vmlinux.lds.S b/arch/ppc64/kernel/vmlinux.lds.S
deleted file mode 100644
index 022f220e772f..000000000000
--- a/arch/ppc64/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,151 +0,0 @@
-#include <asm/page.h>
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(powerpc:common64)
-jiffies = jiffies_64;
-SECTIONS
-{
-  /* Sections to be discarded. */
-  /DISCARD/ : {
-        *(.exitcall.exit)
-        }
-
-
-  /* Read-only sections, merged into text segment: */
-  .text : {
-        *(.text .text.*)
-        SCHED_TEXT
-        LOCK_TEXT
-        KPROBES_TEXT
-        *(.fixup)
-        . = ALIGN(PAGE_SIZE);
-        _etext = .;
-        }
-
-  __ex_table : {
-        __start___ex_table = .;
-        *(__ex_table)
-        __stop___ex_table = .;
-        }
-
-  __bug_table : {
-        __start___bug_table = .;
-        *(__bug_table)
-        __stop___bug_table = .;
-        }
-
-  __ftr_fixup : {
-        __start___ftr_fixup = .;
-        *(__ftr_fixup)
-        __stop___ftr_fixup = .;
-        }
-
-  RODATA
-
-
-  /* will be freed after init */
-  . = ALIGN(PAGE_SIZE);
-  __init_begin = .;
-
-  .init.text : {
-        _sinittext = .;
-        *(.init.text)
-        _einittext = .;
-        }
-
-  .init.data : {
-        *(.init.data)
-        }
-
-  . = ALIGN(16);
-  .init.setup : {
-        __setup_start = .;
-        *(.init.setup)
-        __setup_end = .;
-        }
-
-  .initcall.init : {
-        __initcall_start = .;
-        *(.initcall1.init)
-        *(.initcall2.init)
-        *(.initcall3.init)
-        *(.initcall4.init)
-        *(.initcall5.init)
-        *(.initcall6.init)
-        *(.initcall7.init)
-        __initcall_end = .;
-        }
-
-  .con_initcall.init : {
-        __con_initcall_start = .;
-        *(.con_initcall.init)
-        __con_initcall_end = .;
-        }
-
-  SECURITY_INIT
-
-  . = ALIGN(PAGE_SIZE);
-  .init.ramfs : {
-        __initramfs_start = .;
-        *(.init.ramfs)
-        __initramfs_end = .;
-        }
-
-  .data.percpu : {
-        __per_cpu_start = .;
-        *(.data.percpu)
-        __per_cpu_end = .;
-        }
-
-  . = ALIGN(PAGE_SIZE);
-  . = ALIGN(16384);
-  __init_end = .;
-  /* freed after init ends here */
-
-
-  /* Read/write sections */
-  . = ALIGN(PAGE_SIZE);
-  . = ALIGN(16384);
-  _sdata = .;
-  /* The initial task and kernel stack */
-  .data.init_task : {
-        *(.data.init_task)
-        }
-
-  . = ALIGN(PAGE_SIZE);
-  .data.page_aligned : {
-        *(.data.page_aligned)
-        }
-
-  .data.cacheline_aligned : {
-        *(.data.cacheline_aligned)
-        }
-
-  .data : {
-        *(.data .data.rel* .toc1)
-        *(.branch_lt)
-        }
-
-  .opd : {
-        *(.opd)
-        }
-
-  .got : {
-        __toc_start = .;
-        *(.got)
-        *(.toc)
-        . = ALIGN(PAGE_SIZE);
-        _edata = .;
-        }
-
-
-  . = ALIGN(PAGE_SIZE);
-  .bss : {
-        __bss_start = .;
-        *(.bss)
-        __bss_stop = .;
-        }
-
-  . = ALIGN(PAGE_SIZE);
-  _end = . ;
-}
diff --git a/arch/ppc64/xmon/privinst.h b/arch/ppc64/xmon/privinst.h
deleted file mode 100644
index 02eb40dac0b3..000000000000
--- a/arch/ppc64/xmon/privinst.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 1996 Paul Mackerras.
- *
- *      This program is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU General Public License
- *      as published by the Free Software Foundation; either version
- *      2 of the License, or (at your option) any later version.
- */
-
-#define GETREG(reg)             \
-    static inline unsigned long get_ ## reg (void)      \
-        { unsigned long ret; asm volatile ("mf" #reg " %0" : "=r" (ret) :); return ret; }
-
-#define SETREG(reg)             \
-    static inline void set_ ## reg (unsigned long val)  \
-        { asm volatile ("mt" #reg " %0" : : "r" (val)); }
-
-GETREG(msr)
-SETREG(msrd)
-GETREG(cr)
-
-#define GSETSPR(n, name)        \
-    static inline long get_ ## name (void) \
-        { long ret; asm volatile ("mfspr %0," #n : "=r" (ret) : ); return ret; } \
-    static inline void set_ ## name (long val) \
-        { asm volatile ("mtspr " #n ",%0" : : "r" (val)); }
-
-GSETSPR(0, mq)
-GSETSPR(1, xer)
-GSETSPR(4, rtcu)
-GSETSPR(5, rtcl)
-GSETSPR(8, lr)
-GSETSPR(9, ctr)
-GSETSPR(18, dsisr)
-GSETSPR(19, dar)
-GSETSPR(22, dec)
-GSETSPR(25, sdr1)
-GSETSPR(26, srr0)
-GSETSPR(27, srr1)
-GSETSPR(272, sprg0)
-GSETSPR(273, sprg1)
-GSETSPR(274, sprg2)
-GSETSPR(275, sprg3)
-GSETSPR(282, ear)
-GSETSPR(287, pvr)
-GSETSPR(1008, hid0)
-GSETSPR(1009, hid1)
-GSETSPR(1010, iabr)
-GSETSPR(1023, pir)
-
-static inline void store_inst(void *p)
-{
-        asm volatile ("dcbst 0,%0; sync; icbi 0,%0; isync" : : "r" (p));
-}
-
-static inline void cflush(void *p)
-{
-        asm volatile ("dcbf 0,%0; icbi 0,%0" : : "r" (p));
-}
-
-static inline void cinval(void *p)
-{
-        asm volatile ("dcbi 0,%0; icbi 0,%0" : : "r" (p));
-}
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index 2e64e8c3e8e5..cb3cf0f22822 100644
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -37,17 +37,43 @@ int __atomic_add_return(int i, atomic_t *v)
         spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
         return ret;
 }
+EXPORT_SYMBOL(__atomic_add_return);
 
-void atomic_set(atomic_t *v, int i)
+int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
+        int ret;
         unsigned long flags;
+
         spin_lock_irqsave(ATOMIC_HASH(v), flags);
+        ret = v->counter;
+        if (likely(ret == old))
+                v->counter = new;
 
-        v->counter = i;
+        spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+        return ret;
+}
+
+int atomic_add_unless(atomic_t *v, int a, int u)
+{
+        int ret;
+        unsigned long flags;
 
+        spin_lock_irqsave(ATOMIC_HASH(v), flags);
+        ret = v->counter;
+        if (ret != u)
+                v->counter += a;
         spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+        return ret != u;
 }
 
-EXPORT_SYMBOL(__atomic_add_return);
-EXPORT_SYMBOL(atomic_set);
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
+/* Atomic operations are already serializing */
+void atomic_set(atomic_t *v, int i)
+{
+        unsigned long flags;
 
+        spin_lock_irqsave(ATOMIC_HASH(v), flags);
+        v->counter = i;
+        spin_unlock_irqrestore(ATOMIC_HASH(v), flags);
+}
+EXPORT_SYMBOL(atomic_set);
diff --git a/arch/sparc/lib/bitext.c b/arch/sparc/lib/bitext.c
index 94b05e8c906c..2e168d16547f 100644
--- a/arch/sparc/lib/bitext.c
+++ b/arch/sparc/lib/bitext.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/smp_lock.h>
+#include <linux/string.h>
 #include <linux/bitops.h>
 
 #include <asm/bitext.h>
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 3b5f47c46907..563301fe5df8 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -7,7 +7,6 @@ config UML
         bool
         default y
 
-# XXX: does UM have a mmu/swap?
 config MMU
         bool
         default y
@@ -36,12 +35,6 @@ config IRQ_RELEASE_METHOD
         bool
         default y
 
-menu "Host processor type and features"
-
-source "arch/i386/Kconfig.cpu"
-
-endmenu
-
 menu "UML-specific options"
 
 config MODE_TT
@@ -209,7 +202,8 @@ config MAGIC_SYSRQ
 config SMP
         bool "Symmetric multi-processing support (EXPERIMENTAL)"
         default n
-        depends on (MODE_TT && EXPERIMENTAL && !SMP_BROKEN) || (BROKEN && SMP_BROKEN)
+        #SMP_BROKEN is for x86_64.
+        depends on MODE_TT && EXPERIMENTAL && (!SMP_BROKEN || (BROKEN && SMP_BROKEN))
         help
         This option enables UML SMP support.
         It is NOT related to having a real SMP box. Not directly, at least.
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index 5d92cacd56c6..c71b39a677aa 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -1,3 +1,9 @@
+menu "Host processor type and features"
+
+source "arch/i386/Kconfig.cpu"
+
+endmenu
+
 config UML_X86
         bool
         default y
@@ -42,7 +48,3 @@ config ARCH_HAS_SC_SIGNALS
 config ARCH_REUSE_HOST_VSYSCALL_AREA
         bool
         default y
-
-config X86_CMPXCHG
-        bool
-        default y
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 1f7dcb064aee..7a0e04e34bf9 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -35,4 +35,3 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
 
 CFLAGS += $(cflags-y)
 USER_CFLAGS += $(cflags-y)
-
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 16e7dc89f61d..5b58fad45290 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -89,8 +89,7 @@ static int not_configged_write(int fd, const char *buf, int len, void *data)
         return(-EIO);
 }
 
-static int not_configged_console_write(int fd, const char *buf, int len,
-                                       void *data)
+static int not_configged_console_write(int fd, const char *buf, int len)
 {
         my_puts("Using a channel type which is configured out of "
                "UML\n");
@@ -299,7 +298,7 @@ int console_write_chan(struct list_head *chans, const char *buf, int len)
                 chan = list_entry(ele, struct chan, list);
                 if(!chan->output || (chan->ops->console_write == NULL))
                         continue;
-                n = chan->ops->console_write(chan->fd, buf, len, chan->data);
+                n = chan->ops->console_write(chan->fd, buf, len);
                 if(chan->primary) ret = n;
         }
         return(ret);
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c
index 1c55d5802489..5d50d4a44abf 100644
--- a/arch/um/drivers/chan_user.c
+++ b/arch/um/drivers/chan_user.c
@@ -20,7 +20,7 @@
 #include "choose-mode.h"
 #include "mode.h"
 
-int generic_console_write(int fd, const char *buf, int n, void *unused)
+int generic_console_write(int fd, const char *buf, int n)
 {
         struct termios save, new;
         int err;
diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c
index c1b03f7c1daa..1bb085b2824d 100644
--- a/arch/um/drivers/daemon_user.c
+++ b/arch/um/drivers/daemon_user.c
@@ -98,7 +98,7 @@ static int connect_to_switch(struct daemon_data *pri)
                 printk("daemon_open : control setup request failed, err = %d\n",
                        -n);
                 err = -ENOTCONN;
-                goto out;               
+                goto out_free;
         }
 
         n = os_read_file(pri->control, sun, sizeof(*sun));
@@ -106,12 +106,14 @@ static int connect_to_switch(struct daemon_data *pri)
                 printk("daemon_open : read of data socket failed, err = %d\n",
                        -n);
                 err = -ENOTCONN;
-                goto out_close;         
+                goto out_free;
         }
 
         pri->data_addr = sun;
         return(fd);
 
+ out_free:
+        kfree(sun);
  out_close:
         os_close_file(fd);
  out:
diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c
index f0b888f66e05..3296e86a03a5 100644
--- a/arch/um/drivers/fd.c
+++ b/arch/um/drivers/fd.c
@@ -76,13 +76,6 @@ static void fd_close(int fd, void *d)
         }
 }
 
-static int fd_console_write(int fd, const char *buf, int n, void *d)
-{
-        struct fd_chan *data = d;
-
-        return(generic_console_write(fd, buf, n, &data->tt));
-}
-
 struct chan_ops fd_ops = {
         .type           = "fd",
         .init           = fd_init,
@@ -90,7 +83,7 @@ struct chan_ops fd_ops = {
         .close          = fd_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = fd_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = generic_free,
         .winch          = 1,
diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c
index 5db136e2651c..afe85bfa66e0 100644
--- a/arch/um/drivers/mcast_user.c
+++ b/arch/um/drivers/mcast_user.c
@@ -54,7 +54,7 @@ static int mcast_open(void *data)
         struct mcast_data *pri = data;
         struct sockaddr_in *sin = pri->mcast_addr;
         struct ip_mreq mreq;
-        int fd, yes = 1, err = 0;
+        int fd, yes = 1, err = -EINVAL;
 
 
         if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0))
@@ -63,40 +63,40 @@ static int mcast_open(void *data)
         fd = socket(AF_INET, SOCK_DGRAM, 0);
 
         if (fd < 0){
+                err = -errno;
                 printk("mcast_open : data socket failed, errno = %d\n", 
                        errno);
-                err = -errno;
                 goto out;
         }
 
         if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
+                err = -errno;
                 printk("mcast_open: SO_REUSEADDR failed, errno = %d\n",
                         errno);
-                err = -errno;
                 goto out_close;
         }
 
         /* set ttl according to config */
         if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl,
                        sizeof(pri->ttl)) < 0) {
+                err = -errno;
                 printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n",
                         errno);
-                err = -errno;
                 goto out_close;
         }
 
         /* set LOOP, so data does get fed back to local sockets */
         if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP, &yes, sizeof(yes)) < 0) {
+                err = -errno;
                 printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n",
                         errno);
-                err = -errno;
                 goto out_close;
         }
 
         /* bind socket to mcast address */
         if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) {
-                printk("mcast_open : data bind failed, errno = %d\n", errno);
                 err = -errno;
+                printk("mcast_open : data bind failed, errno = %d\n", errno);
                 goto out_close;
         }               
         
@@ -105,22 +105,22 @@ static int mcast_open(void *data)
         mreq.imr_interface.s_addr = 0;
         if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP, 
                        &mreq, sizeof(mreq)) < 0) {
+                err = -errno;
                 printk("mcast_open: IP_ADD_MEMBERSHIP failed, error = %d\n",
                         errno);
                 printk("There appears not to be a multicast-capable network "
                        "interface on the host.\n");
                 printk("eth0 should be configured in order to use the "
                        "multicast transport.\n");
-                err = -errno;
-                goto out_close;
+                goto out_close;
         }
 
         return fd;
 
  out_close:
-        os_close_file(fd);
+        os_close_file(fd);
  out:
-        return err;
+        return err;
 }
 
 static void mcast_close(int fd, void *data)
diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c
index ed4a1a6c5d83..c43e8bb32502 100644
--- a/arch/um/drivers/port_user.c
+++ b/arch/um/drivers/port_user.c
@@ -100,13 +100,6 @@ static void port_close(int fd, void *d)
         os_close_file(fd);
 }
 
-static int port_console_write(int fd, const char *buf, int n, void *d)
-{
-        struct port_chan *data = d;
-
-        return(generic_console_write(fd, buf, n, &data->tt));
-}
-
 struct chan_ops port_ops = {
         .type           = "port",
         .init           = port_init,
@@ -114,7 +107,7 @@ struct chan_ops port_ops = {
         .close          = port_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = port_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = port_free,
         .winch          = 1,
diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c
index 0306a1b215b7..1c555c38de4d 100644
--- a/arch/um/drivers/pty.c
+++ b/arch/um/drivers/pty.c
@@ -118,13 +118,6 @@ static int pty_open(int input, int output, int primary, void *d,
         return(fd);
 }
 
-static int pty_console_write(int fd, const char *buf, int n, void *d)
-{
-        struct pty_chan *data = d;
-
-        return(generic_console_write(fd, buf, n, &data->tt));
-}
-
 struct chan_ops pty_ops = {
         .type           = "pty",
         .init           = pty_chan_init,
@@ -132,7 +125,7 @@ struct chan_ops pty_ops = {
         .close          = generic_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = pty_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = generic_free,
         .winch          = 0,
@@ -145,7 +138,7 @@ struct chan_ops pts_ops = {
         .close          = generic_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = pty_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = generic_free,
         .winch          = 0,
diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c
index 6fbb670ee274..94c9265a4f2c 100644
--- a/arch/um/drivers/tty.c
+++ b/arch/um/drivers/tty.c
@@ -60,13 +60,6 @@ static int tty_open(int input, int output, int primary, void *d,
         return(fd);
 }
 
-static int tty_console_write(int fd, const char *buf, int n, void *d)
-{
-        struct tty_chan *data = d;
-
-        return(generic_console_write(fd, buf, n, &data->tt));
-}
-
 struct chan_ops tty_ops = {
         .type           = "tty",
         .init           = tty_chan_init,
@@ -74,7 +67,7 @@ struct chan_ops tty_ops = {
         .close          = generic_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = tty_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = generic_free,
         .winch          = 0,
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index b530f1a6540d..aaa636661043 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers/xterm.c
@@ -194,13 +194,6 @@ static void xterm_free(void *d)
         free(d);
 }
 
-static int xterm_console_write(int fd, const char *buf, int n, void *d)
-{
-        struct xterm_chan *data = d;
-
-        return(generic_console_write(fd, buf, n, &data->tt));
-}
-
 struct chan_ops xterm_ops = {
         .type           = "xterm",
         .init           = xterm_init,
@@ -208,7 +201,7 @@ struct chan_ops xterm_ops = {
         .close          = xterm_close,
         .read           = generic_read,
         .write          = generic_write,
-        .console_write  = xterm_console_write,
+        .console_write  = generic_console_write,
         .window_size    = generic_window_size,
         .free           = xterm_free,
         .winch          = 1,
diff --git a/arch/um/include/chan_user.h b/arch/um/include/chan_user.h
index f77d9aa4c164..659bb3cac32f 100644
--- a/arch/um/include/chan_user.h
+++ b/arch/um/include/chan_user.h
@@ -25,7 +25,7 @@ struct chan_ops {
         void (*close)(int, void *);
         int (*read)(int, char *, void *);
         int (*write)(int, const char *, int, void *);
-        int (*console_write)(int, const char *, int, void *);
+        int (*console_write)(int, const char *, int);
         int (*window_size)(int, void *, unsigned short *, unsigned short *);
         void (*free)(void *);
         int winch;
@@ -37,7 +37,7 @@ extern struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, tty_ops,
 extern void generic_close(int fd, void *unused);
 extern int generic_read(int fd, char *c_out, void *unused);
 extern int generic_write(int fd, const char *buf, int n, void *unused);
-extern int generic_console_write(int fd, const char *buf, int n, void *state);
+extern int generic_console_write(int fd, const char *buf, int n);
 extern int generic_window_size(int fd, void *unused, unsigned short *rows_out,
                                unsigned short *cols_out);
 extern void generic_free(void *data);
diff --git a/arch/um/include/um_uaccess.h b/arch/um/include/um_uaccess.h
index 84c0868cd561..f8760a3f43b0 100644
--- a/arch/um/include/um_uaccess.h
+++ b/arch/um/include/um_uaccess.h
@@ -17,8 +17,25 @@
 #include "uaccess-skas.h"
 #endif
 
+#define __under_task_size(addr, size) \
+        (((unsigned long) (addr) < TASK_SIZE) && \
+         (((unsigned long) (addr) + (size)) < TASK_SIZE))
+
+#define __access_ok_vsyscall(type, addr, size) \
+         ((type == VERIFY_READ) && \
+          ((unsigned long) (addr) >= FIXADDR_USER_START) && \
+          ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
+          ((unsigned long) (addr) + (size) >= (unsigned long)(addr)))
+
+#define __addr_range_nowrap(addr, size) \
+        ((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
+
 #define access_ok(type, addr, size) \
-        CHOOSE_MODE_PROC(access_ok_tt, access_ok_skas, type, addr, size)
+        (__addr_range_nowrap(addr, size) && \
+         (__under_task_size(addr, size) || \
+          __access_ok_vsyscall(type, addr, size) || \
+          segment_eq(get_fs(), KERNEL_DS) || \
+          CHOOSE_MODE_PROC(access_ok_tt, access_ok_skas, type, addr, size)))
 
 static inline int copy_from_user(void *to, const void __user *from, int n)
 {
diff --git a/arch/um/kernel/skas/include/uaccess-skas.h b/arch/um/kernel/skas/include/uaccess-skas.h
index 7da0c2def0ef..f611f83ad4ff 100644
--- a/arch/um/kernel/skas/include/uaccess-skas.h
+++ b/arch/um/kernel/skas/include/uaccess-skas.h
@@ -9,14 +9,8 @@
 #include "asm/errno.h"
 #include "asm/fixmap.h"
 
-#define access_ok_skas(type, addr, size) \
-        ((segment_eq(get_fs(), KERNEL_DS)) || \
-         (((unsigned long) (addr) < TASK_SIZE) && \
-          ((unsigned long) (addr) + (size) <= TASK_SIZE)) || \
-         ((type == VERIFY_READ ) && \
-          ((unsigned long) (addr) >= FIXADDR_USER_START) && \
-          ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
-          ((unsigned long) (addr) + (size) >= (unsigned long)(addr))))
+/* No SKAS-specific checking. */
+#define access_ok_skas(type, addr, size) 0
 
 extern int copy_from_user_skas(void *to, const void __user *from, int n);
 extern int copy_to_user_skas(void __user *to, const void *from, int n);
diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c
index 75195281081e..a5a47528dec7 100644
--- a/arch/um/kernel/skas/uaccess.c
+++ b/arch/um/kernel/skas/uaccess.c
@@ -143,7 +143,7 @@ int copy_from_user_skas(void *to, const void __user *from, int n)
                 return(0);
         }
 
-        return(access_ok_skas(VERIFY_READ, from, n) ?
+        return(access_ok(VERIFY_READ, from, n) ?
                buffer_op((unsigned long) from, n, 0, copy_chunk_from_user, &to):
                n);
 }
@@ -164,7 +164,7 @@ int copy_to_user_skas(void __user *to, const void *from, int n)
                 return(0);
         }
 
-        return(access_ok_skas(VERIFY_WRITE, to, n) ?
+        return(access_ok(VERIFY_WRITE, to, n) ?
                buffer_op((unsigned long) to, n, 1, copy_chunk_to_user, &from) :
                n);
 }
@@ -193,7 +193,7 @@ int strncpy_from_user_skas(char *dst, const char __user *src, int count)
                 return(strnlen(dst, count));
         }
 
-        if(!access_ok_skas(VERIFY_READ, src, 1))
+        if(!access_ok(VERIFY_READ, src, 1))
                 return(-EFAULT);
 
         n = buffer_op((unsigned long) src, count, 0, strncpy_chunk_from_user,
@@ -221,7 +221,7 @@ int clear_user_skas(void __user *mem, int len)
                 return(0);
         }
 
-        return(access_ok_skas(VERIFY_WRITE, mem, len) ?
+        return(access_ok(VERIFY_WRITE, mem, len) ?
                buffer_op((unsigned long) mem, len, 1, clear_chunk, NULL) : len);
 }
 
diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
index 95c8f8733baf..0d4c10a73607 100644
--- a/arch/um/kernel/trap_kern.c
+++ b/arch/um/kernel/trap_kern.c
@@ -95,7 +95,16 @@ survive:
                 pte = pte_offset_kernel(pmd, address);
         } while(!pte_present(*pte));
         err = 0;
+        /* The below warning was added in place of
+         *      pte_mkyoung(); if (is_write) pte_mkdirty();
+         * If it's triggered, we'd see normally a hang here (a clean pte is
+         * marked read-only to emulate the dirty bit).
+         * However, the generic code can mark a PTE writable but clean on a
+         * concurrent read fault, triggering this harmlessly. So comment it out.
+         */
+#if 0
         WARN_ON(!pte_young(*pte) || (is_write && !pte_dirty(*pte)));
+#endif
         flush_tlb_page(vma, address);
 out:
         up_read(&mm->mmap_sem);
diff --git a/arch/um/kernel/tt/include/uaccess-tt.h b/arch/um/kernel/tt/include/uaccess-tt.h
index dc2ebfa8c54f..b9bfe9c481c4 100644
--- a/arch/um/kernel/tt/include/uaccess-tt.h
+++ b/arch/um/kernel/tt/include/uaccess-tt.h
@@ -19,19 +19,13 @@
 extern unsigned long end_vm;
 extern unsigned long uml_physmem;
 
-#define under_task_size(addr, size) \
-        (((unsigned long) (addr) < TASK_SIZE) && \
-         (((unsigned long) (addr) + (size)) < TASK_SIZE))
-
 #define is_stack(addr, size) \
         (((unsigned long) (addr) < STACK_TOP) && \
          ((unsigned long) (addr) >= STACK_TOP - ABOVE_KMEM) && \
          (((unsigned long) (addr) + (size)) <= STACK_TOP))
 
 #define access_ok_tt(type, addr, size) \
-        ((type == VERIFY_READ) || (segment_eq(get_fs(), KERNEL_DS)) || \
-         (((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) && \
-          (under_task_size(addr, size) || is_stack(addr, size))))
+        (is_stack(addr, size))
 
 extern unsigned long get_fault_addr(void);
 
diff --git a/arch/um/kernel/tt/uaccess.c b/arch/um/kernel/tt/uaccess.c
index a72aa632972f..1cb60726567e 100644
--- a/arch/um/kernel/tt/uaccess.c
+++ b/arch/um/kernel/tt/uaccess.c
@@ -8,7 +8,7 @@
 
 int copy_from_user_tt(void *to, const void __user *from, int n)
 {
-        if(!access_ok_tt(VERIFY_READ, from, n))
+        if(!access_ok(VERIFY_READ, from, n))
                 return(n);
 
         return(__do_copy_from_user(to, from, n, &current->thread.fault_addr,
@@ -17,7 +17,7 @@ int copy_from_user_tt(void *to, const void __user *from, int n)
 
 int copy_to_user_tt(void __user *to, const void *from, int n)
 {
-        if(!access_ok_tt(VERIFY_WRITE, to, n))
+        if(!access_ok(VERIFY_WRITE, to, n))
                 return(n);
 
         return(__do_copy_to_user(to, from, n, &current->thread.fault_addr,
@@ -28,7 +28,7 @@ int strncpy_from_user_tt(char *dst, const char __user *src, int count)
 {
         int n;
 
-        if(!access_ok_tt(VERIFY_READ, src, 1))
+        if(!access_ok(VERIFY_READ, src, 1))
                 return(-EFAULT);
 
         n = __do_strncpy_from_user(dst, src, count,
@@ -47,7 +47,7 @@ int __clear_user_tt(void __user *mem, int len)
 
 int clear_user_tt(void __user *mem, int len)
 {
-        if(!access_ok_tt(VERIFY_WRITE, mem, len))
+        if(!access_ok(VERIFY_WRITE, mem, len))
                 return(len);
 
         return(__do_clear_user(mem, len, &current->thread.fault_addr,
diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig
index 89c053b6c2c4..310865903234 100644
--- a/arch/v850/Kconfig
+++ b/arch/v850/Kconfig
@@ -23,6 +23,14 @@ config GENERIC_CALIBRATE_DELAY
         bool
         default y
 
+config GENERIC_HARDIRQS
+        bool
+        default y
+
+config GENERIC_IRQ_PROBE
+        bool
+        default y
+
 # Turn off some random 386 crap that can affect device config
 config ISA
         bool
diff --git a/arch/v850/kernel/irq.c b/arch/v850/kernel/irq.c
index 9e85969ba976..7a151c26f82e 100644
--- a/arch/v850/kernel/irq.c
+++ b/arch/v850/kernel/irq.c
@@ -1,8 +1,8 @@
 /*
  * arch/v850/kernel/irq.c -- High-level interrupt handling
  *
- *  Copyright (C) 2001,02,03,04  NEC Electronics Corporation
- *  Copyright (C) 2001,02,03,04  Miles Bader <miles@gnu.org>
+ *  Copyright (C) 2001,02,03,04,05  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03,04,05  Miles Bader <miles@gnu.org>
  *  Copyright (C) 1994-2000  Ralf Baechle
  *  Copyright (C) 1992  Linus Torvalds
  *
@@ -27,55 +27,15 @@
 #include <asm/system.h>
 
 /*
- * Controller mappings for all interrupt sources:
+ * 'what should we do if we get a hw irq event on an illegal vector'.
+ * each architecture has to answer this themselves, it doesn't deserve
+ * a generic callback i think.
  */
-irq_desc_t irq_desc[NR_IRQS] __cacheline_aligned = {
-        [0 ... NR_IRQS-1] = {
-                .handler = &no_irq_type,
-                .lock = SPIN_LOCK_UNLOCKED
-        }
-};
-
-/*
- * Special irq handlers.
- */
-
-irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs)
-{
-        return IRQ_NONE;
-}
-
-/*
- * Generic no controller code
- */
-
-static void enable_none(unsigned int irq) { }
-static unsigned int startup_none(unsigned int irq) { return 0; }
-static void disable_none(unsigned int irq) { }
-static void ack_none(unsigned int irq)
+void ack_bad_irq(unsigned int irq)
 {
-        /*
-         * 'what should we do if we get a hw irq event on an illegal vector'.
-         * each architecture has to answer this themselves, it doesn't deserve
-         * a generic callback i think.
-         */
         printk("received IRQ %d with unknown interrupt type\n", irq);
 }
 
-/* startup is the same as "enable", shutdown is same as "disable" */
-#define shutdown_none   disable_none
-#define end_none        enable_none
-
-struct hw_interrupt_type no_irq_type = {
-        .typename = "none",
-        .startup = startup_none,
-        .shutdown = shutdown_none,
-        .enable = enable_none,
-        .disable = disable_none,
-        .ack = ack_none,
-        .end = end_none
-};
-
 volatile unsigned long irq_err_count, spurious_count;
 
 /*
@@ -84,643 +44,68 @@ volatile unsigned long irq_err_count, spurious_count;
 
 int show_interrupts(struct seq_file *p, void *v)
 {
-        int i = *(loff_t *) v;
-        struct irqaction * action;
-        unsigned long flags;
+        int irq = *(loff_t *) v;
 
-        if (i == 0) {
+        if (irq == 0) {
+                int cpu;
                 seq_puts(p, "           ");
-                for (i=0; i < 1 /*smp_num_cpus*/; i++)
-                        seq_printf(p, "CPU%d       ", i);
+                for (cpu=0; cpu < 1 /*smp_num_cpus*/; cpu++)
+                        seq_printf(p, "CPU%d       ", cpu);
                 seq_putc(p, '\n');
         }
 
-        if (i < NR_IRQS) {
-                int j, count, num;
-                const char *type_name = irq_desc[i].handler->typename;
-                spin_lock_irqsave(&irq_desc[j].lock, flags);
-                action = irq_desc[i].action;
-                if (!action) 
-                        goto skip;
+        if (irq < NR_IRQS) {
+                unsigned long flags;
+                struct irqaction *action;
 
-                count = 0;
-                num = -1;
-                for (j = 0; j < NR_IRQS; j++)
-                        if (irq_desc[j].handler->typename == type_name) {
-                                if (i == j)
-                                        num = count;
-                                count++;
-                        }
+                spin_lock_irqsave(&irq_desc[irq].lock, flags);
 
-                seq_printf(p, "%3d: ",i);
-                seq_printf(p, "%10u ", kstat_irqs(i));
-                if (count > 1) {
-                        int prec = (num >= 100 ? 3 : num >= 10 ? 2 : 1);
-                        seq_printf(p, " %*s%d", 14 - prec, type_name, num);
-                } else
-                        seq_printf(p, " %14s", type_name);
+                action = irq_desc[irq].action;
+                if (action) {
+                        int j;
+                        int count = 0;
+                        int num = -1;
+                        const char *type_name = irq_desc[irq].handler->typename;
+
+                        for (j = 0; j < NR_IRQS; j++)
+                                if (irq_desc[j].handler->typename == type_name){
+                                        if (irq == j)
+                                                num = count;
+                                        count++;
+                                }
+
+                        seq_printf(p, "%3d: ",irq);
+                        seq_printf(p, "%10u ", kstat_irqs(irq));
+                        if (count > 1) {
+                                int prec = (num >= 100 ? 3 : num >= 10 ? 2 : 1);
+                                seq_printf(p, " %*s%d", 14 - prec,
+                                           type_name, num);
+                        } else
+                                seq_printf(p, " %14s", type_name);
                 
-                seq_printf(p, "  %s", action->name);
-                for (action=action->next; action; action = action->next)
-                        seq_printf(p, ", %s", action->name);
-                seq_putc(p, '\n');
-skip:
-                spin_unlock_irqrestore(&irq_desc[j].lock, flags);
-        } else if (i == NR_IRQS)
-                seq_printf(p, "ERR: %10lu\n", irq_err_count);
-        return 0;
-}
-
-/*
- * This should really return information about whether
- * we should do bottom half handling etc. Right now we
- * end up _always_ checking the bottom half, which is a
- * waste of time and is not what some drivers would
- * prefer.
- */
-int handle_IRQ_event(unsigned int irq, struct pt_regs * regs, struct irqaction * action)
-{
-        int status = 1; /* Force the "do bottom halves" bit */
-        int ret;
-
-        if (!(action->flags & SA_INTERRUPT))
-                local_irq_enable();
-
-        do {
-                ret = action->handler(irq, action->dev_id, regs);
-                if (ret == IRQ_HANDLED)
-                        status |= action->flags;
-                action = action->next;
-        } while (action);
-        if (status & SA_SAMPLE_RANDOM)
-                add_interrupt_randomness(irq);
-        local_irq_disable();
-
-        return status;
-}
-
-/*
- * Generic enable/disable code: this just calls
- * down into the PIC-specific version for the actual
- * hardware disable after having gotten the irq
- * controller lock. 
- */
- 
-/**
- *      disable_irq_nosync - disable an irq without waiting
- *      @irq: Interrupt to disable
- *
- *      Disable the selected interrupt line. Disables of an interrupt
- *      stack. Unlike disable_irq(), this function does not ensure existing
- *      instances of the IRQ handler have completed before returning.
- *
- *      This function may be called from IRQ context.
- */
- 
-void inline disable_irq_nosync(unsigned int irq)
-{
-        irq_desc_t *desc = irq_desc + irq;
-        unsigned long flags;
-
-        spin_lock_irqsave(&desc->lock, flags);
-        if (!desc->depth++) {
-                desc->status |= IRQ_DISABLED;
-                desc->handler->disable(irq);
-        }
-        spin_unlock_irqrestore(&desc->lock, flags);
-}
-
-/**
- *      disable_irq - disable an irq and wait for completion
- *      @irq: Interrupt to disable
- *
- *      Disable the selected interrupt line. Disables of an interrupt
- *      stack. That is for two disables you need two enables. This
- *      function waits for any pending IRQ handlers for this interrupt
- *      to complete before returning. If you use this function while
- *      holding a resource the IRQ handler may need you will deadlock.
- *
- *      This function may be called - with care - from IRQ context.
- */
- 
-void disable_irq(unsigned int irq)
-{
-        disable_irq_nosync(irq);
-        synchronize_irq(irq);
-}
+                        seq_printf(p, "  %s", action->name);
+                        for (action=action->next; action; action = action->next)
+                                seq_printf(p, ", %s", action->name);
+                        seq_putc(p, '\n');
+                }
 
-/**
- *      enable_irq - enable interrupt handling on an irq
- *      @irq: Interrupt to enable
- *
- *      Re-enables the processing of interrupts on this IRQ line
- *      providing no disable_irq calls are now in effect.
- *
- *      This function may be called from IRQ context.
- */
- 
-void enable_irq(unsigned int irq)
-{
-        irq_desc_t *desc = irq_desc + irq;
-        unsigned long flags;
+                spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
+        } else if (irq == NR_IRQS)
+                seq_printf(p, "ERR: %10lu\n", irq_err_count);
 
-        spin_lock_irqsave(&desc->lock, flags);
-        switch (desc->depth) {
-        case 1: {
-                unsigned int status = desc->status & ~IRQ_DISABLED;
-                desc->status = status;
-                if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
-                        desc->status = status | IRQ_REPLAY;
-                        hw_resend_irq(desc->handler,irq);
-                }
-                desc->handler->enable(irq);
-                /* fall-through */
-        }
-        default:
-                desc->depth--;
-                break;
-        case 0:
-                printk("enable_irq(%u) unbalanced from %p\n", irq,
-                       __builtin_return_address(0));
-        }
-        spin_unlock_irqrestore(&desc->lock, flags);
+        return 0;
 }
 
 /* Handle interrupt IRQ.  REGS are the registers at the time of ther
    interrupt.  */
 unsigned int handle_irq (int irq, struct pt_regs *regs)
 {
-        /* 
-         * We ack quickly, we don't want the irq controller
-         * thinking we're snobs just because some other CPU has
-         * disabled global interrupts (we have already done the
-         * INT_ACK cycles, it's too late to try to pretend to the
-         * controller that we aren't taking the interrupt).
-         *
-         * 0 return value means that this irq is already being
-         * handled by some other CPU. (or is disabled)
-         */
-        int cpu = smp_processor_id();
-        irq_desc_t *desc = irq_desc + irq;
-        struct irqaction * action;
-        unsigned int status;
-
         irq_enter();
-        kstat_cpu(cpu).irqs[irq]++;
-        spin_lock(&desc->lock);
-        desc->handler->ack(irq);
-        /*
-           REPLAY is when Linux resends an IRQ that was dropped earlier
-           WAITING is used by probe to mark irqs that are being tested
-           */
-        status = desc->status & ~(IRQ_REPLAY | IRQ_WAITING);
-        status |= IRQ_PENDING; /* we _want_ to handle it */
-
-        /*
-         * If the IRQ is disabled for whatever reason, we cannot
-         * use the action we have.
-         */
-        action = NULL;
-        if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) {
-                action = desc->action;
-                status &= ~IRQ_PENDING; /* we commit to handling */
-                status |= IRQ_INPROGRESS; /* we are handling it */
-        }
-        desc->status = status;
-
-        /*
-         * If there is no IRQ handler or it was disabled, exit early.
-           Since we set PENDING, if another processor is handling
-           a different instance of this same irq, the other processor
-           will take care of it.
-         */
-        if (unlikely(!action))
-                goto out;
-
-        /*
-         * Edge triggered interrupts need to remember
-         * pending events.
-         * This applies to any hw interrupts that allow a second
-         * instance of the same irq to arrive while we are in handle_irq
-         * or in the handler. But the code here only handles the _second_
-         * instance of the irq, not the third or fourth. So it is mostly
-         * useful for irq hardware that does not mask cleanly in an
-         * SMP environment.
-         */
-        for (;;) {
-                spin_unlock(&desc->lock);
-                handle_IRQ_event(irq, regs, action);
-                spin_lock(&desc->lock);
-                
-                if (likely(!(desc->status & IRQ_PENDING)))
-                        break;
-                desc->status &= ~IRQ_PENDING;
-        }
-        desc->status &= ~IRQ_INPROGRESS;
-
-out:
-        /*
-         * The ->end() handler has to deal with interrupts which got
-         * disabled while the handler was running.
-         */
-        desc->handler->end(irq);
-        spin_unlock(&desc->lock);
-
+        __do_IRQ(irq, regs);
         irq_exit();
-
         return 1;
 }
 
-/**
- *      request_irq - allocate an interrupt line
- *      @irq: Interrupt line to allocate
- *      @handler: Function to be called when the IRQ occurs
- *      @irqflags: Interrupt type flags
- *      @devname: An ascii name for the claiming device
- *      @dev_id: A cookie passed back to the handler function
- *
- *      This call allocates interrupt resources and enables the
- *      interrupt line and IRQ handling. From the point this
- *      call is made your handler function may be invoked. Since
- *      your handler function must clear any interrupt the board 
- *      raises, you must take care both to initialise your hardware
- *      and to set up the interrupt handler in the right order.
- *
- *      Dev_id must be globally unique. Normally the address of the
- *      device data structure is used as the cookie. Since the handler
- *      receives this value it makes sense to use it.
- *
- *      If your interrupt is shared you must pass a non NULL dev_id
- *      as this is required when freeing the interrupt.
- *
- *      Flags:
- *
- *      SA_SHIRQ                Interrupt is shared
- *
- *      SA_INTERRUPT            Disable local interrupts while processing
- *
- *      SA_SAMPLE_RANDOM        The interrupt can be used for entropy
- *
- */
- 
-int request_irq(unsigned int irq, 
-                irqreturn_t (*handler)(int, void *, struct pt_regs *),
-                unsigned long irqflags, 
-                const char * devname,
-                void *dev_id)
-{
-        int retval;
-        struct irqaction * action;
-
-#if 1
-        /*
-         * Sanity-check: shared interrupts should REALLY pass in
-         * a real dev-ID, otherwise we'll have trouble later trying
-         * to figure out which interrupt is which (messes up the
-         * interrupt freeing logic etc).
-         */
-        if (irqflags & SA_SHIRQ) {
-                if (!dev_id)
-                        printk("Bad boy: %s (at 0x%x) called us without a dev_id!\n", devname, (&irq)[-1]);
-        }
-#endif
-
-        if (irq >= NR_IRQS)
-                return -EINVAL;
-        if (!handler)
-                return -EINVAL;
-
-        action = (struct irqaction *)
-                        kmalloc(sizeof(struct irqaction), GFP_KERNEL);
-        if (!action)
-                return -ENOMEM;
-
-        action->handler = handler;
-        action->flags = irqflags;
-        cpus_clear(action->mask);
-        action->name = devname;
-        action->next = NULL;
-        action->dev_id = dev_id;
-
-        retval = setup_irq(irq, action);
-        if (retval)
-                kfree(action);
-        return retval;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-/**
- *      free_irq - free an interrupt
- *      @irq: Interrupt line to free
- *      @dev_id: Device identity to free
- *
- *      Remove an interrupt handler. The handler is removed and if the
- *      interrupt line is no longer in use by any driver it is disabled.
- *      On a shared IRQ the caller must ensure the interrupt is disabled
- *      on the card it drives before calling this function. The function
- *      does not return until any executing interrupts for this IRQ
- *      have completed.
- *
- *      This function may be called from interrupt context. 
- *
- *      Bugs: Attempting to free an irq in a handler for the same irq hangs
- *            the machine.
- */
- 
-void free_irq(unsigned int irq, void *dev_id)
-{
-        irq_desc_t *desc;
-        struct irqaction **p;
-        unsigned long flags;
-
-        if (irq >= NR_IRQS)
-                return;
-
-        desc = irq_desc + irq;
-        spin_lock_irqsave(&desc->lock,flags);
-        p = &desc->action;
-        for (;;) {
-                struct irqaction * action = *p;
-                if (action) {
-                        struct irqaction **pp = p;
-                        p = &action->next;
-                        if (action->dev_id != dev_id)
-                                continue;
-
-                        /* Found it - now remove it from the list of entries */
-                        *pp = action->next;
-                        if (!desc->action) {
-                                desc->status |= IRQ_DISABLED;
-                                desc->handler->shutdown(irq);
-                        }
-                        spin_unlock_irqrestore(&desc->lock,flags);
-
-                        synchronize_irq(irq);
-                        kfree(action);
-                        return;
-                }
-                printk("Trying to free free IRQ%d\n",irq);
-                spin_unlock_irqrestore(&desc->lock,flags);
-                return;
-        }
-}
-
-EXPORT_SYMBOL(free_irq);
-
-/*
- * IRQ autodetection code..
- *
- * This depends on the fact that any interrupt that
- * comes in on to an unassigned handler will get stuck
- * with "IRQ_WAITING" cleared and the interrupt
- * disabled.
- */
-
-static DECLARE_MUTEX(probe_sem);
-
-/**
- *      probe_irq_on    - begin an interrupt autodetect
- *
- *      Commence probing for an interrupt. The interrupts are scanned
- *      and a mask of potential interrupt lines is returned.
- *
- */
- 
-unsigned long probe_irq_on(void)
-{
-        unsigned int i;
-        irq_desc_t *desc;
-        unsigned long val;
-        unsigned long delay;
-
-        down(&probe_sem);
-        /* 
-         * something may have generated an irq long ago and we want to
-         * flush such a longstanding irq before considering it as spurious. 
-         */
-        for (i = NR_IRQS-1; i > 0; i--)  {
-                desc = irq_desc + i;
-
-                spin_lock_irq(&desc->lock);
-                if (!irq_desc[i].action) 
-                        irq_desc[i].handler->startup(i);
-                spin_unlock_irq(&desc->lock);
-        }
-
-        /* Wait for longstanding interrupts to trigger. */
-        for (delay = jiffies + HZ/50; time_after(delay, jiffies); )
-                /* about 20ms delay */ barrier();
-
-        /*
-         * enable any unassigned irqs
-         * (we must startup again here because if a longstanding irq
-         * happened in the previous stage, it may have masked itself)
-         */
-        for (i = NR_IRQS-1; i > 0; i--) {
-                desc = irq_desc + i;
-
-                spin_lock_irq(&desc->lock);
-                if (!desc->action) {
-                        desc->status |= IRQ_AUTODETECT | IRQ_WAITING;
-                        if (desc->handler->startup(i))
-                                desc->status |= IRQ_PENDING;
-                }
-                spin_unlock_irq(&desc->lock);
-        }
-
-        /*
-         * Wait for spurious interrupts to trigger
-         */
-        for (delay = jiffies + HZ/10; time_after(delay, jiffies); )
-                /* about 100ms delay */ barrier();
-
-        /*
-         * Now filter out any obviously spurious interrupts
-         */
-        val = 0;
-        for (i = 0; i < NR_IRQS; i++) {
-                irq_desc_t *desc = irq_desc + i;
-                unsigned int status;
-
-                spin_lock_irq(&desc->lock);
-                status = desc->status;
-
-                if (status & IRQ_AUTODETECT) {
-                        /* It triggered already - consider it spurious. */
-                        if (!(status & IRQ_WAITING)) {
-                                desc->status = status & ~IRQ_AUTODETECT;
-                                desc->handler->shutdown(i);
-                        } else
-                                if (i < 32)
-                                        val |= 1 << i;
-                }
-                spin_unlock_irq(&desc->lock);
-        }
-
-        return val;
-}
-
-EXPORT_SYMBOL(probe_irq_on);
-
-/*
- * Return a mask of triggered interrupts (this
- * can handle only legacy ISA interrupts).
- */
- 
-/**
- *      probe_irq_mask - scan a bitmap of interrupt lines
- *      @val:   mask of interrupts to consider
- *
- *      Scan the ISA bus interrupt lines and return a bitmap of
- *      active interrupts. The interrupt probe logic state is then
- *      returned to its previous value.
- *
- *      Note: we need to scan all the irq's even though we will
- *      only return ISA irq numbers - just so that we reset them
- *      all to a known state.
- */
-unsigned int probe_irq_mask(unsigned long val)
-{
-        int i;
-        unsigned int mask;
-
-        mask = 0;
-        for (i = 0; i < NR_IRQS; i++) {
-                irq_desc_t *desc = irq_desc + i;
-                unsigned int status;
-
-                spin_lock_irq(&desc->lock);
-                status = desc->status;
-
-                if (status & IRQ_AUTODETECT) {
-                        if (i < 16 && !(status & IRQ_WAITING))
-                                mask |= 1 << i;
-
-                        desc->status = status & ~IRQ_AUTODETECT;
-                        desc->handler->shutdown(i);
-                }
-                spin_unlock_irq(&desc->lock);
-        }
-        up(&probe_sem);
-
-        return mask & val;
-}
-
-/*
- * Return the one interrupt that triggered (this can
- * handle any interrupt source).
- */
-
-/**
- *      probe_irq_off   - end an interrupt autodetect
- *      @val: mask of potential interrupts (unused)
- *
- *      Scans the unused interrupt lines and returns the line which
- *      appears to have triggered the interrupt. If no interrupt was
- *      found then zero is returned. If more than one interrupt is
- *      found then minus the first candidate is returned to indicate
- *      their is doubt.
- *
- *      The interrupt probe logic state is returned to its previous
- *      value.
- *
- *      BUGS: When used in a module (which arguably shouldnt happen)
- *      nothing prevents two IRQ probe callers from overlapping. The
- *      results of this are non-optimal.
- */
- 
-int probe_irq_off(unsigned long val)
-{
-        int i, irq_found, nr_irqs;
-
-        nr_irqs = 0;
-        irq_found = 0;
-        for (i = 0; i < NR_IRQS; i++) {
-                irq_desc_t *desc = irq_desc + i;
-                unsigned int status;
-
-                spin_lock_irq(&desc->lock);
-                status = desc->status;
-
-                if (status & IRQ_AUTODETECT) {
-                        if (!(status & IRQ_WAITING)) {
-                                if (!nr_irqs)
-                                        irq_found = i;
-                                nr_irqs++;
-                        }
-                        desc->status = status & ~IRQ_AUTODETECT;
-                        desc->handler->shutdown(i);
-                }
-                spin_unlock_irq(&desc->lock);
-        }
-        up(&probe_sem);
-
-        if (nr_irqs > 1)
-                irq_found = -irq_found;
-        return irq_found;
-}
-
-EXPORT_SYMBOL(probe_irq_off);
-
-/* this was setup_x86_irq but it seems pretty generic */
-int setup_irq(unsigned int irq, struct irqaction * new)
-{
-        int shared = 0;
-        unsigned long flags;
-        struct irqaction *old, **p;
-        irq_desc_t *desc = irq_desc + irq;
-
-        /*
-         * Some drivers like serial.c use request_irq() heavily,
-         * so we have to be careful not to interfere with a
-         * running system.
-         */
-        if (new->flags & SA_SAMPLE_RANDOM) {
-                /*
-                 * This function might sleep, we want to call it first,
-                 * outside of the atomic block.
-                 * Yes, this might clear the entropy pool if the wrong
-                 * driver is attempted to be loaded, without actually
-                 * installing a new handler, but is this really a problem,
-                 * only the sysadmin is able to do this.
-                 */
-                rand_initialize_irq(irq);
-        }
-
-        /*
-         * The following block of code has to be executed atomically
-         */
-        spin_lock_irqsave(&desc->lock,flags);
-        p = &desc->action;
-        if ((old = *p) != NULL) {
-                /* Can't share interrupts unless both agree to */
-                if (!(old->flags & new->flags & SA_SHIRQ)) {
-                        spin_unlock_irqrestore(&desc->lock,flags);
-                        return -EBUSY;
-                }
-
-                /* add new interrupt at end of irq queue */
-                do {
-                        p = &old->next;
-                        old = *p;
-                } while (old);
-                shared = 1;
-        }
-
-        *p = new;
-
-        if (!shared) {
-                desc->depth = 0;
-                desc->status &= ~(IRQ_DISABLED | IRQ_AUTODETECT | IRQ_WAITING | IRQ_INPROGRESS);
-                desc->handler->startup(irq);
-        }
-        spin_unlock_irqrestore(&desc->lock,flags);
-
-        /* register_irq_proc(irq); */
-        return 0;
-}
-
 /* Initialize irq handling for IRQs.
    BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL
    to IRQ_TYPE.  An IRQ_TYPE of 0 means to use a generic interrupt type.  */
@@ -736,9 +121,3 @@ init_irq_handlers (int base_irq, int num, int interval,
                 base_irq += interval;
         }
 }
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-void init_irq_proc(void)
-{
-}
-#endif /* CONFIG_PROC_FS && CONFIG_SYSCTL */
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 4cce2f6f170c..6ece645e4dbe 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -226,22 +226,42 @@ config SCHED_SMT
 
 source "kernel/Kconfig.preempt"
 
-config K8_NUMA
-       bool "K8 NUMA support"
-       select NUMA
+config NUMA
+       bool "Non Uniform Memory Access (NUMA) Support"
        depends on SMP
        help
-          Enable NUMA (Non Unified Memory Architecture) support for
-          AMD Opteron Multiprocessor systems. The kernel will try to allocate
-          memory used by a CPU on the local memory controller of the CPU
-          and add some more NUMA awareness to the kernel.
-          This code is recommended on all multiprocessor Opteron systems
-          and normally doesn't hurt on others.
+         Enable NUMA (Non Uniform Memory Access) support. The kernel 
+         will try to allocate memory used by a CPU on the local memory 
+         controller of the CPU and add some more NUMA awareness to the kernel.
+         This code is recommended on all multiprocessor Opteron systems.
+         If the system is EM64T, you should say N unless your system is EM64T 
+         NUMA. 
+
+config K8_NUMA
+       bool "Old style AMD Opteron NUMA detection"
+       depends on NUMA
+       default y
+       help
+         Enable K8 NUMA node topology detection.  You should say Y here if
+         you have a multi processor AMD K8 system. This uses an old
+         method to read the NUMA configurtion directly from the builtin
+         Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
+         instead, which also takes priority if both are compiled in.   
+
+# Dummy CONFIG option to select ACPI_NUMA from drivers/acpi/Kconfig.
+
+config X86_64_ACPI_NUMA
+       bool "ACPI NUMA detection"
+       depends on NUMA
+       select ACPI 
+       select ACPI_NUMA
+       default y
+       help
+         Enable ACPI SRAT based node topology detection.
 
 config NUMA_EMU
-        bool "NUMA emulation support"
-        select NUMA
-        depends on SMP
+        bool "NUMA emulation"
+        depends on NUMA
         help
           Enable NUMA emulation. A flat machine will be split
           into virtual nodes when booted with "numa=fake=N", where N is the
@@ -252,9 +272,6 @@ config ARCH_DISCONTIGMEM_ENABLE
        depends on NUMA
        default y
 
-config NUMA
-       bool
-       default n
 
 config ARCH_DISCONTIGMEM_ENABLE
         def_bool y
@@ -374,6 +391,14 @@ config X86_MCE_INTEL
            Additional support for intel specific MCE features such as
            the thermal monitor.
 
+config X86_MCE_AMD
+        bool "AMD MCE features"
+        depends on X86_MCE && X86_LOCAL_APIC
+        default y
+        help
+           Additional support for AMD specific MCE features such as
+           the DRAM Error Threshold.
+
 config PHYSICAL_START
         hex "Physical address where the kernel is loaded" if EMBEDDED
         default "0x100000"
@@ -502,7 +527,7 @@ config IA32_EMULATION
           left.
 
 config IA32_AOUT
-       bool "IA32 a.out support"
+       tristate "IA32 a.out support"
        depends on IA32_EMULATION
        help
          Support old a.out binaries in the 32bit emulation.
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index d584ecc27ea1..e2c6e64a85ec 100644
--- a/arch/x86_64/Kconfig.debug
+++ b/arch/x86_64/Kconfig.debug
@@ -2,15 +2,6 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-# !SMP for now because the context switch early causes GPF in segment reloading
-# and the GS base checking does the wrong thing then, causing a hang.
-config CHECKING
-        bool "Additional run-time checks"
-        depends on DEBUG_KERNEL && !SMP
-        help
-          Enables some internal consistency checks for kernel debugging.
-          You should normally say N.
-
 config INIT_DEBUG
         bool "Debug __init statements"
         depends on DEBUG_KERNEL
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig
index f8db7e500fbf..5d56542fb68f 100644
--- a/arch/x86_64/defconfig
+++ b/arch/x86_64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.13-git11
-# Mon Sep 12 16:16:16 2005
+# Linux kernel version: 2.6.14-git7
+# Sat Nov  5 15:55:50 2005
 #
 CONFIG_X86_64=y
 CONFIG_64BIT=y
@@ -35,7 +35,7 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-# CONFIG_HOTPLUG is not set
+CONFIG_HOTPLUG=y
 CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -93,10 +93,11 @@ CONFIG_PREEMPT_NONE=y
 # CONFIG_PREEMPT_VOLUNTARY is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_BKL=y
+CONFIG_NUMA=y
 CONFIG_K8_NUMA=y
+CONFIG_X86_64_ACPI_NUMA=y
 # CONFIG_NUMA_EMU is not set
 CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
-CONFIG_NUMA=y
 CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_SELECT_MEMORY_MODEL=y
@@ -107,9 +108,10 @@ CONFIG_DISCONTIGMEM=y
 CONFIG_FLAT_NODE_MEM_MAP=y
 CONFIG_NEED_MULTIPLE_NODES=y
 # CONFIG_SPARSEMEM_STATIC is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
 CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
-CONFIG_HAVE_DEC_LOCK=y
 CONFIG_NR_CPUS=32
+CONFIG_HOTPLUG_CPU=y
 CONFIG_HPET_TIMER=y
 CONFIG_X86_PM_TIMER=y
 CONFIG_HPET_EMULATE_RTC=y
@@ -117,6 +119,7 @@ CONFIG_GART_IOMMU=y
 CONFIG_SWIOTLB=y
 CONFIG_X86_MCE=y
 CONFIG_X86_MCE_INTEL=y
+CONFIG_X86_MCE_AMD=y
 CONFIG_PHYSICAL_START=0x100000
 # CONFIG_KEXEC is not set
 CONFIG_SECCOMP=y
@@ -136,11 +139,15 @@ CONFIG_PM=y
 # CONFIG_PM_DEBUG is not set
 CONFIG_SOFTWARE_SUSPEND=y
 CONFIG_PM_STD_PARTITION=""
+CONFIG_SUSPEND_SMP=y
 
 #
 # ACPI (Advanced Configuration and Power Interface) Support
 #
 CONFIG_ACPI=y
+CONFIG_ACPI_SLEEP=y
+CONFIG_ACPI_SLEEP_PROC_FS=y
+CONFIG_ACPI_SLEEP_PROC_SLEEP=y
 CONFIG_ACPI_AC=y
 CONFIG_ACPI_BATTERY=y
 CONFIG_ACPI_BUTTON=y
@@ -148,6 +155,7 @@ CONFIG_ACPI_BUTTON=y
 CONFIG_ACPI_HOTKEY=m
 CONFIG_ACPI_FAN=y
 CONFIG_ACPI_PROCESSOR=y
+CONFIG_ACPI_HOTPLUG_CPU=y
 CONFIG_ACPI_THERMAL=y
 CONFIG_ACPI_NUMA=y
 # CONFIG_ACPI_ASUS is not set
@@ -158,7 +166,7 @@ CONFIG_ACPI_BLACKLIST_YEAR=2001
 CONFIG_ACPI_EC=y
 CONFIG_ACPI_POWER=y
 CONFIG_ACPI_SYSTEM=y
-# CONFIG_ACPI_CONTAINER is not set
+CONFIG_ACPI_CONTAINER=y
 
 #
 # CPU Frequency scaling
@@ -293,7 +301,6 @@ CONFIG_IPV6=y
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
-# CONFIG_NETFILTER_NETLINK is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_IRDA is not set
 # CONFIG_BT is not set
@@ -312,6 +319,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_DEBUG_DRIVER is not set
 
 #
+# Connector - unified userspace <-> kernelspace linker
+#
+# CONFIG_CONNECTOR is not set
+
+#
 # Memory Technology Devices (MTD)
 #
 # CONFIG_MTD is not set
@@ -354,6 +366,11 @@ CONFIG_IOSCHED_NOOP=y
 # CONFIG_IOSCHED_AS is not set
 CONFIG_IOSCHED_DEADLINE=y
 CONFIG_IOSCHED_CFQ=y
+# CONFIG_DEFAULT_AS is not set
+CONFIG_DEFAULT_DEADLINE=y
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="cfq"
 # CONFIG_ATA_OVER_ETH is not set
 
 #
@@ -450,6 +467,7 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_SPI_ATTRS=y
 # CONFIG_SCSI_FC_ATTRS is not set
 # CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
 
 #
 # SCSI low-level drivers
@@ -469,20 +487,24 @@ CONFIG_AIC79XX_DEBUG_MASK=0
 # CONFIG_AIC79XX_REG_PRETTY_PRINT is not set
 # CONFIG_MEGARAID_NEWGEN is not set
 # CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_SAS is not set
 CONFIG_SCSI_SATA=y
 # CONFIG_SCSI_SATA_AHCI is not set
 # CONFIG_SCSI_SATA_SVW is not set
 CONFIG_SCSI_ATA_PIIX=y
 # CONFIG_SCSI_SATA_MV is not set
-# CONFIG_SCSI_SATA_NV is not set
-# CONFIG_SCSI_SATA_PROMISE is not set
+CONFIG_SCSI_SATA_NV=y
+# CONFIG_SCSI_PDC_ADMA is not set
 # CONFIG_SCSI_SATA_QSTOR is not set
+# CONFIG_SCSI_SATA_PROMISE is not set
 # CONFIG_SCSI_SATA_SX4 is not set
 # CONFIG_SCSI_SATA_SIL is not set
+# CONFIG_SCSI_SATA_SIL24 is not set
 # CONFIG_SCSI_SATA_SIS is not set
 # CONFIG_SCSI_SATA_ULI is not set
 CONFIG_SCSI_SATA_VIA=y
 # CONFIG_SCSI_SATA_VITESSE is not set
+CONFIG_SCSI_SATA_INTEL_COMBINED=y
 # CONFIG_SCSI_BUSLOGIC is not set
 # CONFIG_SCSI_DMX3191D is not set
 # CONFIG_SCSI_EATA is not set
@@ -525,6 +547,7 @@ CONFIG_BLK_DEV_DM=y
 CONFIG_FUSION=y
 CONFIG_FUSION_SPI=y
 # CONFIG_FUSION_FC is not set
+# CONFIG_FUSION_SAS is not set
 CONFIG_FUSION_MAX_SGE=128
 # CONFIG_FUSION_CTL is not set
 
@@ -564,6 +587,7 @@ CONFIG_NET_ETHERNET=y
 CONFIG_MII=y
 # CONFIG_HAPPYMEAL is not set
 # CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
 CONFIG_NET_VENDOR_3COM=y
 CONFIG_VORTEX=y
 # CONFIG_TYPHOON is not set
@@ -740,7 +764,43 @@ CONFIG_LEGACY_PTY_COUNT=256
 #
 # Watchdog Cards
 #
-# CONFIG_WATCHDOG is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+
+#
+# Watchdog Device Drivers
+#
+CONFIG_SOFT_WATCHDOG=y
+# CONFIG_ACQUIRE_WDT is not set
+# CONFIG_ADVANTECH_WDT is not set
+# CONFIG_ALIM1535_WDT is not set
+# CONFIG_ALIM7101_WDT is not set
+# CONFIG_SC520_WDT is not set
+# CONFIG_EUROTECH_WDT is not set
+# CONFIG_IB700_WDT is not set
+# CONFIG_IBMASR is not set
+# CONFIG_WAFER_WDT is not set
+# CONFIG_I6300ESB_WDT is not set
+# CONFIG_I8XX_TCO is not set
+# CONFIG_SC1200_WDT is not set
+# CONFIG_60XX_WDT is not set
+# CONFIG_SBC8360_WDT is not set
+# CONFIG_CPU5_WDT is not set
+# CONFIG_W83627HF_WDT is not set
+# CONFIG_W83877F_WDT is not set
+# CONFIG_W83977F_WDT is not set
+# CONFIG_MACHZ_WDT is not set
+
+#
+# PCI-based Watchdog Cards
+#
+# CONFIG_PCIPCWATCHDOG is not set
+# CONFIG_WDTPCI is not set
+
+#
+# USB-based Watchdog Cards
+#
+# CONFIG_USBPCWATCHDOG is not set
 CONFIG_HW_RANDOM=y
 # CONFIG_NVRAM is not set
 CONFIG_RTC=y
@@ -767,6 +827,7 @@ CONFIG_MAX_RAW_DEVS=256
 # TPM devices
 #
 # CONFIG_TCG_TPM is not set
+# CONFIG_TELCLOCK is not set
 
 #
 # I2C support
@@ -783,6 +844,7 @@ CONFIG_MAX_RAW_DEVS=256
 #
 CONFIG_HWMON=y
 # CONFIG_HWMON_VID is not set
+# CONFIG_SENSORS_HDAPS is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
 #
@@ -886,12 +948,15 @@ CONFIG_USB_UHCI_HCD=y
 # USB Device Class drivers
 #
 # CONFIG_OBSOLETE_OSS_USB_DRIVER is not set
-# CONFIG_USB_BLUETOOTH_TTY is not set
 # CONFIG_USB_ACM is not set
 CONFIG_USB_PRINTER=y
 
 #
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
+# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
+#
+
+#
+# may also be needed; see USB_STORAGE Help for more information
 #
 CONFIG_USB_STORAGE=y
 # CONFIG_USB_STORAGE_DEBUG is not set
@@ -924,6 +989,7 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
+# CONFIG_USB_APPLETOUCH is not set
 
 #
 # USB Imaging devices
@@ -1005,7 +1071,7 @@ CONFIG_USB_MON=y
 #
 # CONFIG_EDD is not set
 # CONFIG_DELL_RBU is not set
-CONFIG_DCDBAS=m
+# CONFIG_DCDBAS is not set
 
 #
 # File systems
@@ -1037,7 +1103,7 @@ CONFIG_INOTIFY=y
 # CONFIG_QUOTA is not set
 CONFIG_DNOTIFY=y
 CONFIG_AUTOFS_FS=y
-# CONFIG_AUTOFS4_FS is not set
+CONFIG_AUTOFS4_FS=y
 # CONFIG_FUSE_FS is not set
 
 #
@@ -1068,7 +1134,7 @@ CONFIG_TMPFS=y
 CONFIG_HUGETLBFS=y
 CONFIG_HUGETLB_PAGE=y
 CONFIG_RAMFS=y
-# CONFIG_RELAYFS_FS is not set
+CONFIG_RELAYFS_FS=y
 
 #
 # Miscellaneous filesystems
@@ -1186,7 +1252,9 @@ CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_DEBUG_KOBJECT is not set
 # CONFIG_DEBUG_INFO is not set
 CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_VM is not set
 # CONFIG_FRAME_POINTER is not set
+# CONFIG_RCU_TORTURE_TEST is not set
 CONFIG_INIT_DEBUG=y
 # CONFIG_IOMMU_DEBUG is not set
 CONFIG_KPROBES=y
diff --git a/arch/x86_64/ia32/ia32_aout.c b/arch/x86_64/ia32/ia32_aout.c
index 93c60f4aa47a..3bf58af98936 100644
--- a/arch/x86_64/ia32/ia32_aout.c
+++ b/arch/x86_64/ia32/ia32_aout.c
@@ -36,9 +36,6 @@
 #undef WARN_OLD
 #undef CORE_DUMP /* probably broken */
 
-extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
-                                unsigned long stack_top, int exec_stack);
-
 static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
 static int load_aout_library(struct file*);
 
diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index d9161e395978..830feb272eca 100644
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -335,7 +335,8 @@ static void elf32_init(struct pt_regs *regs)
         me->thread.es = __USER_DS;
 }
 
-int setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int executable_stack)
+int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
+                         int executable_stack)
 {
         unsigned long stack_base;
         struct vm_area_struct *mpnt;
@@ -389,6 +390,7 @@ int setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int exec
         
         return 0;
 }
+EXPORT_SYMBOL(ia32_setup_arg_pages);
 
 static unsigned long
 elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type)
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile
index 14328cab5d3a..fe4cbd1c4b2f 100644
--- a/arch/x86_64/kernel/Makefile
+++ b/arch/x86_64/kernel/Makefile
@@ -11,6 +11,7 @@ obj-y	:= process.o signal.o entry.o traps.o irq.o \
 
 obj-$(CONFIG_X86_MCE)         += mce.o
 obj-$(CONFIG_X86_MCE_INTEL)     += mce_intel.o
+obj-$(CONFIG_X86_MCE_AMD)       += mce_amd.o
 obj-$(CONFIG_MTRR)              += ../../i386/kernel/cpu/mtrr/
 obj-$(CONFIG_ACPI)              += acpi/
 obj-$(CONFIG_X86_MSR)           += msr.o
diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c
index 962ad4823b6a..c7f4fdd20f05 100644
--- a/arch/x86_64/kernel/aperture.c
+++ b/arch/x86_64/kernel/aperture.c
@@ -196,7 +196,7 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 void __init iommu_hole_init(void) 
 { 
         int fix, num; 
-        u32 aper_size, aper_alloc = 0, aper_order, last_aper_order = 0;
+        u32 aper_size, aper_alloc = 0, aper_order = 0, last_aper_order = 0;
         u64 aper_base, last_aper_base = 0;
         int valid_agp = 0;
 
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index b6e7715d877f..18691ce4c759 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -833,6 +833,16 @@ int setup_profiling_timer(unsigned int multiplier)
         return 0;
 }
 
+#ifdef CONFIG_X86_MCE_AMD
+void setup_threshold_lvt(unsigned long lvt_off)
+{
+        unsigned int v = 0;
+        unsigned long reg = (lvt_off << 4) + 0x500;
+        v |= THRESHOLD_APIC_VECTOR;
+        apic_write(reg, v);
+}
+#endif /* CONFIG_X86_MCE_AMD */
+
 #undef APIC_DIVISOR
 
 /*
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c
index ab3f87aaff70..17579a1a174b 100644
--- a/arch/x86_64/kernel/e820.c
+++ b/arch/x86_64/kernel/e820.c
@@ -23,8 +23,7 @@
 #include <asm/e820.h>
 #include <asm/proto.h>
 #include <asm/bootsetup.h>
-
-extern char _end[];
+#include <asm/sections.h>
 
 /* 
  * PFN of last memory page.
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 7937971d1853..9ff42041bb6b 100644
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -612,6 +612,9 @@ retint_kernel:
 ENTRY(thermal_interrupt)
         apicinterrupt THERMAL_APIC_VECTOR,smp_thermal_interrupt
 
+ENTRY(threshold_interrupt)
+        apicinterrupt THRESHOLD_APIC_VECTOR,mce_threshold_interrupt
+
 #ifdef CONFIG_SMP       
 ENTRY(reschedule_interrupt)
         apicinterrupt RESCHEDULE_VECTOR,smp_reschedule_interrupt
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S
index b92e5f45ed46..15290968e49d 100644
--- a/arch/x86_64/kernel/head.S
+++ b/arch/x86_64/kernel/head.S
@@ -12,6 +12,7 @@
 
 #include <linux/linkage.h>
 #include <linux/threads.h>
+#include <linux/init.h>
 #include <asm/desc.h>
 #include <asm/segment.h>
 #include <asm/page.h>
@@ -70,7 +71,7 @@ startup_32:
         movl    %eax, %cr4
 
         /* Setup early boot stage 4 level pagetables */
-        movl    $(init_level4_pgt - __START_KERNEL_map), %eax
+        movl    $(boot_level4_pgt - __START_KERNEL_map), %eax
         movl    %eax, %cr3
 
         /* Setup EFER (Extended Feature Enable Register) */
@@ -113,7 +114,7 @@ startup_64:
         movq    %rax, %cr4
 
         /* Setup early boot stage 4 level pagetables. */
-        movq    $(init_level4_pgt - __START_KERNEL_map), %rax
+        movq    $(boot_level4_pgt - __START_KERNEL_map), %rax
         movq    %rax, %cr3
 
         /* Check if nx is implemented */
@@ -240,20 +241,10 @@ ljumpvector:
 ENTRY(stext)
 ENTRY(_stext)
 
-        /*
-         * This default setting generates an ident mapping at address 0x100000
-         * and a mapping for the kernel that precisely maps virtual address
-         * 0xffffffff80000000 to physical address 0x000000. (always using
-         * 2Mbyte large pages provided by PAE mode)
-         */
 .org 0x1000
 ENTRY(init_level4_pgt)
-        .quad   0x0000000000002007 + __PHYSICAL_START   /* -> level3_ident_pgt */
-        .fill   255,8,0
-        .quad   0x000000000000a007 + __PHYSICAL_START
-        .fill   254,8,0
-        /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
-        .quad   0x0000000000003007 + __PHYSICAL_START   /* -> level3_kernel_pgt */
+        /* This gets initialized in x86_64_start_kernel */
+        .fill   512,8,0
 
 .org 0x2000
 ENTRY(level3_ident_pgt)
@@ -350,6 +341,24 @@ ENTRY(wakeup_level4_pgt)
         .quad   0x0000000000003007 + __PHYSICAL_START   /* -> level3_kernel_pgt */
 #endif
 
+#ifndef CONFIG_HOTPLUG_CPU
+        __INITDATA
+#endif
+        /*
+         * This default setting generates an ident mapping at address 0x100000
+         * and a mapping for the kernel that precisely maps virtual address
+         * 0xffffffff80000000 to physical address 0x000000. (always using
+         * 2Mbyte large pages provided by PAE mode)
+         */
+        .align PAGE_SIZE
+ENTRY(boot_level4_pgt)
+        .quad   0x0000000000002007 + __PHYSICAL_START   /* -> level3_ident_pgt */
+        .fill   255,8,0
+        .quad   0x000000000000a007 + __PHYSICAL_START
+        .fill   254,8,0
+        /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
+        .quad   0x0000000000003007 + __PHYSICAL_START   /* -> level3_kernel_pgt */
+
         .data
 
         .align 16
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c
index cf6ab147a2a5..b675c5add01e 100644
--- a/arch/x86_64/kernel/head64.c
+++ b/arch/x86_64/kernel/head64.c
@@ -19,14 +19,15 @@
 #include <asm/bootsetup.h>
 #include <asm/setup.h>
 #include <asm/desc.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
 
 /* Don't add a printk in there. printk relies on the PDA which is not initialized 
    yet. */
 static void __init clear_bss(void)
 {
-        extern char __bss_start[], __bss_end[];
         memset(__bss_start, 0,
-               (unsigned long) __bss_end - (unsigned long) __bss_start);
+               (unsigned long) __bss_stop - (unsigned long) __bss_start);
 }
 
 #define NEW_CL_POINTER          0x228   /* Relative to real mode data */
@@ -75,8 +76,6 @@ static void __init setup_boot_cpu_data(void)
         boot_cpu_data.x86_mask = eax & 0xf;
 }
 
-extern char _end[];
-
 void __init x86_64_start_kernel(char * real_mode_data)
 {
         char *s;
@@ -86,6 +85,13 @@ void __init x86_64_start_kernel(char * real_mode_data)
                 set_intr_gate(i, early_idt_handler);
         asm volatile("lidt %0" :: "m" (idt_descr));
         clear_bss();
+
+        /*
+         * switch to init_level4_pgt from boot_level4_pgt
+         */
+        memcpy(init_level4_pgt, boot_level4_pgt, PTRS_PER_PGD*sizeof(pgd_t));
+        asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt)));
+
         pda_init(0);
         copy_bootdata(real_mode_data);
 #ifdef CONFIG_SMP
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index c6c9791d77c1..6e5101ad3d1a 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -492,6 +492,7 @@ void invalidate_interrupt5(void);
 void invalidate_interrupt6(void);
 void invalidate_interrupt7(void);
 void thermal_interrupt(void);
+void threshold_interrupt(void);
 void i8254_timer_resume(void);
 
 static void setup_timer_hardware(void)
@@ -515,7 +516,7 @@ void i8254_timer_resume(void)
 }
 
 static struct sysdev_class timer_sysclass = {
-        set_kset_name("timer"),
+        set_kset_name("timer_pit"),
         .resume         = timer_resume,
 };
 
@@ -580,6 +581,7 @@ void __init init_IRQ(void)
         set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
 #endif  
         set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
+        set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
 
 #ifdef CONFIG_X86_LOCAL_APIC
         /* self generated IPI for local APIC timer */
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index c8eee20cd519..97154ab058b4 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -57,7 +57,7 @@ int nr_ioapic_registers[MAX_IO_APICS];
  * Rough estimation of how many shared IRQs there are, can
  * be changed anytime.
  */
-#define MAX_PLUS_SHARED_IRQS NR_IRQS
+#define MAX_PLUS_SHARED_IRQS NR_IRQ_VECTORS
 #define PIN_MAP_SIZE (MAX_PLUS_SHARED_IRQS + NR_IRQS)
 
 /*
@@ -85,6 +85,7 @@ int vector_irq[NR_VECTORS] __read_mostly = { [0 ... NR_VECTORS - 1] = -1};
         int pin;                                                        \
         struct irq_pin_list *entry = irq_2_pin + irq;                   \
                                                                         \
+        BUG_ON(irq >= NR_IRQS);                                         \
         for (;;) {                                                      \
                 unsigned int reg;                                       \
                 pin = entry->pin;                                       \
@@ -127,6 +128,8 @@ static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t mask)
 }
 #endif
 
+static u8 gsi_2_irq[NR_IRQ_VECTORS] = { [0 ... NR_IRQ_VECTORS-1] = 0xFF };
+
 /*
  * The common case is 1:1 IRQ<->pin mappings. Sometimes there are
  * shared ISA-space IRQs, so we have to support them. We are super
@@ -137,6 +140,7 @@ static void add_pin_to_irq(unsigned int irq, int apic, int pin)
         static int first_free_entry = NR_IRQS;
         struct irq_pin_list *entry = irq_2_pin + irq;
 
+        BUG_ON(irq >= NR_IRQS);
         while (entry->next)
                 entry = irq_2_pin + entry->next;
 
@@ -144,7 +148,7 @@ static void add_pin_to_irq(unsigned int irq, int apic, int pin)
                 entry->next = first_free_entry;
                 entry = irq_2_pin + entry->next;
                 if (++first_free_entry >= PIN_MAP_SIZE)
-                        panic("io_apic.c: whoops");
+                        panic("io_apic.c: ran out of irq_2_pin entries!");
         }
         entry->apic = apic;
         entry->pin = pin;
@@ -420,6 +424,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
                                 best_guess = irq;
                 }
         }
+        BUG_ON(best_guess >= NR_IRQS);
         return best_guess;
 }
 
@@ -610,6 +615,64 @@ static inline int irq_trigger(int idx)
         return MPBIOS_trigger(idx);
 }
 
+static int next_irq = 16;
+
+/*
+ * gsi_irq_sharing -- Name overload!  "irq" can be either a legacy IRQ
+ * in the range 0-15, a linux IRQ in the range 0-223, or a GSI number
+ * from ACPI, which can reach 800 in large boxen.
+ *
+ * Compact the sparse GSI space into a sequential IRQ series and reuse
+ * vectors if possible.
+ */
+int gsi_irq_sharing(int gsi)
+{
+        int i, tries, vector;
+
+        BUG_ON(gsi >= NR_IRQ_VECTORS);
+
+        if (platform_legacy_irq(gsi))
+                return gsi;
+
+        if (gsi_2_irq[gsi] != 0xFF)
+                return (int)gsi_2_irq[gsi];
+
+        tries = NR_IRQS;
+  try_again:
+        vector = assign_irq_vector(gsi);
+
+        /*
+         * Sharing vectors means sharing IRQs, so scan irq_vectors for previous
+         * use of vector and if found, return that IRQ.  However, we never want
+         * to share legacy IRQs, which usually have a different trigger mode
+         * than PCI.
+         */
+        for (i = 0; i < NR_IRQS; i++)
+                if (IO_APIC_VECTOR(i) == vector)
+                        break;
+        if (platform_legacy_irq(i)) {
+                if (--tries >= 0) {
+                        IO_APIC_VECTOR(i) = 0;
+                        goto try_again;
+                }
+                panic("gsi_irq_sharing: didn't find an IRQ using vector 0x%02X for GSI %d", vector, gsi);
+        }
+        if (i < NR_IRQS) {
+                gsi_2_irq[gsi] = i;
+                printk(KERN_INFO "GSI %d sharing vector 0x%02X and IRQ %d\n",
+                                gsi, vector, i);
+                return i;
+        }
+
+        i = next_irq++;
+        BUG_ON(i >= NR_IRQS);
+        gsi_2_irq[gsi] = i;
+        IO_APIC_VECTOR(i) = vector;
+        printk(KERN_INFO "GSI %d assigned vector 0x%02X and IRQ %d\n",
+                        gsi, vector, i);
+        return i;
+}
+
 static int pin_2_irq(int idx, int apic, int pin)
 {
         int irq, i;
@@ -639,6 +702,7 @@ static int pin_2_irq(int idx, int apic, int pin)
                         while (i < apic)
                                 irq += nr_ioapic_registers[i++];
                         irq += pin;
+                        irq = gsi_irq_sharing(irq);
                         break;
                 }
                 default:
@@ -648,6 +712,7 @@ static int pin_2_irq(int idx, int apic, int pin)
                         break;
                 }
         }
+        BUG_ON(irq >= NR_IRQS);
 
         /*
          * PCI IRQ command line redirection. Yes, limits are hardcoded.
@@ -663,6 +728,7 @@ static int pin_2_irq(int idx, int apic, int pin)
                         }
                 }
         }
+        BUG_ON(irq >= NR_IRQS);
         return irq;
 }
 
@@ -690,8 +756,8 @@ int assign_irq_vector(int irq)
 {
         static int current_vector = FIRST_DEVICE_VECTOR, offset = 0;
 
-        BUG_ON(irq >= NR_IRQ_VECTORS);
-        if (IO_APIC_VECTOR(irq) > 0)
+        BUG_ON(irq != AUTO_ASSIGN && (unsigned)irq >= NR_IRQ_VECTORS);
+        if (irq != AUTO_ASSIGN && IO_APIC_VECTOR(irq) > 0)
                 return IO_APIC_VECTOR(irq);
 next:
         current_vector += 8;
@@ -699,9 +765,8 @@ next:
                 goto next;
 
         if (current_vector >= FIRST_SYSTEM_VECTOR) {
-                offset++;
-                if (!(offset%8))
-                        return -ENOSPC;
+                /* If we run out of vectors on large boxen, must share them. */
+                offset = (offset + 1) % 8;
                 current_vector = FIRST_DEVICE_VECTOR + offset;
         }
 
@@ -1917,6 +1982,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int a
         entry.polarity = active_high_low;
         entry.mask = 1;                                  /* Disabled (masked) */
 
+        irq = gsi_irq_sharing(irq);
         /*
          * IRQs < 16 are already in the irq_2_pin[] map
          */
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index 69541db5ff2c..183dc6105429 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -37,7 +37,7 @@ static unsigned long bank[NR_BANKS] = { [0 ... NR_BANKS-1] = ~0UL };
 static unsigned long console_logged;
 static int notify_user;
 static int rip_msr;
-static int mce_bootlog;
+static int mce_bootlog = 1;
 
 /*
  * Lockless MCE logging infrastructure.
@@ -347,7 +347,11 @@ static void __cpuinit mce_cpu_quirks(struct cpuinfo_x86 *c)
                 /* disable GART TBL walk error reporting, which trips off 
                    incorrectly with the IOMMU & 3ware & Cerberus. */
                 clear_bit(10, &bank[4]);
+                /* Lots of broken BIOS around that don't clear them
+                   by default and leave crap in there. Don't log. */
+                mce_bootlog = 0;
         }
+
 }                       
 
 static void __cpuinit mce_cpu_features(struct cpuinfo_x86 *c)
@@ -356,6 +360,9 @@ static void __cpuinit mce_cpu_features(struct cpuinfo_x86 *c)
         case X86_VENDOR_INTEL:
                 mce_intel_feature_init(c);
                 break;
+        case X86_VENDOR_AMD:
+                mce_amd_feature_init(c);
+                break;
         default:
                 break;
         }
@@ -495,16 +502,16 @@ static int __init mcheck_disable(char *str)
 /* mce=off disables machine check. Note you can reenable it later
    using sysfs.
    mce=TOLERANCELEVEL (number, see above)
-   mce=bootlog Log MCEs from before booting. Disabled by default to work
-   around buggy BIOS that leave bogus MCEs.  */
+   mce=bootlog Log MCEs from before booting. Disabled by default on AMD.
+   mce=nobootlog Don't log MCEs from before booting. */
 static int __init mcheck_enable(char *str)
 {
         if (*str == '=')
                 str++;
         if (!strcmp(str, "off"))
                 mce_dont_init = 1;
-        else if (!strcmp(str, "bootlog"))
-                mce_bootlog = 1;
+        else if (!strcmp(str, "bootlog") || !strcmp(str,"nobootlog"))
+                mce_bootlog = str[0] == 'b';
         else if (isdigit(str[0]))
                 get_option(&str, &tolerant);
         else
diff --git a/arch/x86_64/kernel/mce_amd.c b/arch/x86_64/kernel/mce_amd.c
new file mode 100644
index 000000000000..1f76175ace02
--- /dev/null
+++ b/arch/x86_64/kernel/mce_amd.c
@@ -0,0 +1,538 @@
+/*
+ *  (c) 2005 Advanced Micro Devices, Inc.
+ *  Your use of this code is subject to the terms and conditions of the
+ *  GNU general public license version 2. See "COPYING" or
+ *  http://www.gnu.org/licenses/gpl.html
+ *
+ *  Written by Jacob Shin - AMD, Inc.
+ *
+ *  Support : jacob.shin@amd.com
+ *
+ *  MC4_MISC0 DRAM ECC Error Threshold available under AMD K8 Rev F.
+ *  MC4_MISC0 exists per physical processor.
+ *
+ */
+
+#include <linux/cpu.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kobject.h>
+#include <linux/notifier.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/sysdev.h>
+#include <linux/sysfs.h>
+#include <asm/apic.h>
+#include <asm/mce.h>
+#include <asm/msr.h>
+#include <asm/percpu.h>
+
+#define PFX "mce_threshold: "
+#define VERSION "version 1.00.9"
+#define NR_BANKS 5
+#define THRESHOLD_MAX 0xFFF
+#define INT_TYPE_APIC 0x00020000
+#define MASK_VALID_HI 0x80000000
+#define MASK_LVTOFF_HI 0x00F00000
+#define MASK_COUNT_EN_HI 0x00080000
+#define MASK_INT_TYPE_HI 0x00060000
+#define MASK_OVERFLOW_HI 0x00010000
+#define MASK_ERR_COUNT_HI 0x00000FFF
+#define MASK_OVERFLOW 0x0001000000000000L
+
+struct threshold_bank {
+        unsigned int cpu;
+        u8 bank;
+        u8 interrupt_enable;
+        u16 threshold_limit;
+        struct kobject kobj;
+};
+
+static struct threshold_bank threshold_defaults = {
+        .interrupt_enable = 0,
+        .threshold_limit = THRESHOLD_MAX,
+};
+
+#ifdef CONFIG_SMP
+static unsigned char shared_bank[NR_BANKS] = {
+        0, 0, 0, 0, 1
+};
+#endif
+
+static DEFINE_PER_CPU(unsigned char, bank_map); /* see which banks are on */
+
+/*
+ * CPU Initialization
+ */
+
+/* must be called with correct cpu affinity */
+static void threshold_restart_bank(struct threshold_bank *b,
+                                   int reset, u16 old_limit)
+{
+        u32 mci_misc_hi, mci_misc_lo;
+
+        rdmsr(MSR_IA32_MC0_MISC + b->bank * 4, mci_misc_lo, mci_misc_hi);
+
+        if (b->threshold_limit < (mci_misc_hi & THRESHOLD_MAX))
+                reset = 1;      /* limit cannot be lower than err count */
+
+        if (reset) {            /* reset err count and overflow bit */
+                mci_misc_hi =
+                    (mci_misc_hi & ~(MASK_ERR_COUNT_HI | MASK_OVERFLOW_HI)) |
+                    (THRESHOLD_MAX - b->threshold_limit);
+        } else if (old_limit) { /* change limit w/o reset */
+                int new_count = (mci_misc_hi & THRESHOLD_MAX) +
+                    (old_limit - b->threshold_limit);
+                mci_misc_hi = (mci_misc_hi & ~MASK_ERR_COUNT_HI) |
+                    (new_count & THRESHOLD_MAX);
+        }
+
+        b->interrupt_enable ?
+            (mci_misc_hi = (mci_misc_hi & ~MASK_INT_TYPE_HI) | INT_TYPE_APIC) :
+            (mci_misc_hi &= ~MASK_INT_TYPE_HI);
+
+        mci_misc_hi |= MASK_COUNT_EN_HI;
+        wrmsr(MSR_IA32_MC0_MISC + b->bank * 4, mci_misc_lo, mci_misc_hi);
+}
+
+void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
+{
+        int bank;
+        u32 mci_misc_lo, mci_misc_hi;
+        unsigned int cpu = smp_processor_id();
+
+        for (bank = 0; bank < NR_BANKS; ++bank) {
+                rdmsr(MSR_IA32_MC0_MISC + bank * 4, mci_misc_lo, mci_misc_hi);
+
+                /* !valid, !counter present, bios locked */
+                if (!(mci_misc_hi & MASK_VALID_HI) ||
+                    !(mci_misc_hi & MASK_VALID_HI >> 1) ||
+                    (mci_misc_hi & MASK_VALID_HI >> 2))
+                        continue;
+
+                per_cpu(bank_map, cpu) |= (1 << bank);
+
+#ifdef CONFIG_SMP
+                if (shared_bank[bank] && cpu_core_id[cpu])
+                        continue;
+#endif
+
+                setup_threshold_lvt((mci_misc_hi & MASK_LVTOFF_HI) >> 20);
+                threshold_defaults.cpu = cpu;
+                threshold_defaults.bank = bank;
+                threshold_restart_bank(&threshold_defaults, 0, 0);
+        }
+}
+
+/*
+ * APIC Interrupt Handler
+ */
+
+/*
+ * threshold interrupt handler will service THRESHOLD_APIC_VECTOR.
+ * the interrupt goes off when error_count reaches threshold_limit.
+ * the handler will simply log mcelog w/ software defined bank number.
+ */
+asmlinkage void mce_threshold_interrupt(void)
+{
+        int bank;
+        struct mce m;
+
+        ack_APIC_irq();
+        irq_enter();
+
+        memset(&m, 0, sizeof(m));
+        rdtscll(m.tsc);
+        m.cpu = smp_processor_id();
+
+        /* assume first bank caused it */
+        for (bank = 0; bank < NR_BANKS; ++bank) {
+                m.bank = MCE_THRESHOLD_BASE + bank;
+                rdmsrl(MSR_IA32_MC0_MISC + bank * 4, m.misc);
+
+                if (m.misc & MASK_OVERFLOW) {
+                        mce_log(&m);
+                        goto out;
+                }
+        }
+      out:
+        irq_exit();
+}
+
+/*
+ * Sysfs Interface
+ */
+
+static struct sysdev_class threshold_sysclass = {
+        set_kset_name("threshold"),
+};
+
+static DEFINE_PER_CPU(struct sys_device, device_threshold);
+
+struct threshold_attr {
+        struct attribute attr;
+        ssize_t(*show) (struct threshold_bank *, char *);
+        ssize_t(*store) (struct threshold_bank *, const char *, size_t count);
+};
+
+static DEFINE_PER_CPU(struct threshold_bank *, threshold_banks[NR_BANKS]);
+
+static cpumask_t affinity_set(unsigned int cpu)
+{
+        cpumask_t oldmask = current->cpus_allowed;
+        cpumask_t newmask = CPU_MASK_NONE;
+        cpu_set(cpu, newmask);
+        set_cpus_allowed(current, newmask);
+        return oldmask;
+}
+
+static void affinity_restore(cpumask_t oldmask)
+{
+        set_cpus_allowed(current, oldmask);
+}
+
+#define SHOW_FIELDS(name) \
+        static ssize_t show_ ## name(struct threshold_bank * b, char *buf) \
+        { \
+                return sprintf(buf, "%lx\n", (unsigned long) b->name); \
+        }
+SHOW_FIELDS(interrupt_enable)
+SHOW_FIELDS(threshold_limit)
+
+static ssize_t store_interrupt_enable(struct threshold_bank *b,
+                                      const char *buf, size_t count)
+{
+        char *end;
+        cpumask_t oldmask;
+        unsigned long new = simple_strtoul(buf, &end, 0);
+        if (end == buf)
+                return -EINVAL;
+        b->interrupt_enable = !!new;
+
+        oldmask = affinity_set(b->cpu);
+        threshold_restart_bank(b, 0, 0);
+        affinity_restore(oldmask);
+
+        return end - buf;
+}
+
+static ssize_t store_threshold_limit(struct threshold_bank *b,
+                                     const char *buf, size_t count)
+{
+        char *end;
+        cpumask_t oldmask;
+        u16 old;
+        unsigned long new = simple_strtoul(buf, &end, 0);
+        if (end == buf)
+                return -EINVAL;
+        if (new > THRESHOLD_MAX)
+                new = THRESHOLD_MAX;
+        if (new < 1)
+                new = 1;
+        old = b->threshold_limit;
+        b->threshold_limit = new;
+
+        oldmask = affinity_set(b->cpu);
+        threshold_restart_bank(b, 0, old);
+        affinity_restore(oldmask);
+
+        return end - buf;
+}
+
+static ssize_t show_error_count(struct threshold_bank *b, char *buf)
+{
+        u32 high, low;
+        cpumask_t oldmask;
+        oldmask = affinity_set(b->cpu);
+        rdmsr(MSR_IA32_MC0_MISC + b->bank * 4, low, high); /* ignore low 32 */
+        affinity_restore(oldmask);
+        return sprintf(buf, "%x\n",
+                       (high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit));
+}
+
+static ssize_t store_error_count(struct threshold_bank *b,
+                                 const char *buf, size_t count)
+{
+        cpumask_t oldmask;
+        oldmask = affinity_set(b->cpu);
+        threshold_restart_bank(b, 1, 0);
+        affinity_restore(oldmask);
+        return 1;
+}
+
+#define THRESHOLD_ATTR(_name,_mode,_show,_store) {            \
+        .attr = {.name = __stringify(_name), .mode = _mode }, \
+        .show = _show,                                        \
+        .store = _store,                                      \
+};
+
+#define ATTR_FIELDS(name) \
+        static struct threshold_attr name = \
+        THRESHOLD_ATTR(name, 0644, show_## name, store_## name)
+
+ATTR_FIELDS(interrupt_enable);
+ATTR_FIELDS(threshold_limit);
+ATTR_FIELDS(error_count);
+
+static struct attribute *default_attrs[] = {
+        &interrupt_enable.attr,
+        &threshold_limit.attr,
+        &error_count.attr,
+        NULL
+};
+
+#define to_bank(k) container_of(k,struct threshold_bank,kobj)
+#define to_attr(a) container_of(a,struct threshold_attr,attr)
+
+static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
+{
+        struct threshold_bank *b = to_bank(kobj);
+        struct threshold_attr *a = to_attr(attr);
+        ssize_t ret;
+        ret = a->show ? a->show(b, buf) : -EIO;
+        return ret;
+}
+
+static ssize_t store(struct kobject *kobj, struct attribute *attr,
+                     const char *buf, size_t count)
+{
+        struct threshold_bank *b = to_bank(kobj);
+        struct threshold_attr *a = to_attr(attr);
+        ssize_t ret;
+        ret = a->store ? a->store(b, buf, count) : -EIO;
+        return ret;
+}
+
+static struct sysfs_ops threshold_ops = {
+        .show = show,
+        .store = store,
+};
+
+static struct kobj_type threshold_ktype = {
+        .sysfs_ops = &threshold_ops,
+        .default_attrs = default_attrs,
+};
+
+/* symlinks sibling shared banks to first core.  first core owns dir/files. */
+static __cpuinit int threshold_create_bank(unsigned int cpu, int bank)
+{
+        int err = 0;
+        struct threshold_bank *b = 0;
+
+#ifdef CONFIG_SMP
+        if (cpu_core_id[cpu] && shared_bank[bank]) {    /* symlink */
+                char name[16];
+                unsigned lcpu = first_cpu(cpu_core_map[cpu]);
+                if (cpu_core_id[lcpu])
+                        goto out;       /* first core not up yet */
+
+                b = per_cpu(threshold_banks, lcpu)[bank];
+                if (!b)
+                        goto out;
+                sprintf(name, "bank%i", bank);
+                err = sysfs_create_link(&per_cpu(device_threshold, cpu).kobj,
+                                        &b->kobj, name);
+                if (err)
+                        goto out;
+                per_cpu(threshold_banks, cpu)[bank] = b;
+                goto out;
+        }
+#endif
+
+        b = kmalloc(sizeof(struct threshold_bank), GFP_KERNEL);
+        if (!b) {
+                err = -ENOMEM;
+                goto out;
+        }
+        memset(b, 0, sizeof(struct threshold_bank));
+
+        b->cpu = cpu;
+        b->bank = bank;
+        b->interrupt_enable = 0;
+        b->threshold_limit = THRESHOLD_MAX;
+        kobject_set_name(&b->kobj, "bank%i", bank);
+        b->kobj.parent = &per_cpu(device_threshold, cpu).kobj;
+        b->kobj.ktype = &threshold_ktype;
+
+        err = kobject_register(&b->kobj);
+        if (err) {
+                kfree(b);
+                goto out;
+        }
+        per_cpu(threshold_banks, cpu)[bank] = b;
+      out:
+        return err;
+}
+
+/* create dir/files for all valid threshold banks */
+static __cpuinit int threshold_create_device(unsigned int cpu)
+{
+        int bank;
+        int err = 0;
+
+        per_cpu(device_threshold, cpu).id = cpu;
+        per_cpu(device_threshold, cpu).cls = &threshold_sysclass;
+        err = sysdev_register(&per_cpu(device_threshold, cpu));
+        if (err)
+                goto out;
+
+        for (bank = 0; bank < NR_BANKS; ++bank) {
+                if (!(per_cpu(bank_map, cpu) & 1 << bank))
+                        continue;
+                err = threshold_create_bank(cpu, bank);
+                if (err)
+                        goto out;
+        }
+      out:
+        return err;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+/*
+ * let's be hotplug friendly.
+ * in case of multiple core processors, the first core always takes ownership
+ *   of shared sysfs dir/files, and rest of the cores will be symlinked to it.
+ */
+
+/* cpu hotplug call removes all symlinks before first core dies */
+static __cpuinit void threshold_remove_bank(unsigned int cpu, int bank)
+{
+        struct threshold_bank *b;
+        char name[16];
+
+        b = per_cpu(threshold_banks, cpu)[bank];
+        if (!b)
+                return;
+        if (shared_bank[bank] && atomic_read(&b->kobj.kref.refcount) > 2) {
+                sprintf(name, "bank%i", bank);
+                sysfs_remove_link(&per_cpu(device_threshold, cpu).kobj, name);
+                per_cpu(threshold_banks, cpu)[bank] = 0;
+        } else {
+                kobject_unregister(&b->kobj);
+                kfree(per_cpu(threshold_banks, cpu)[bank]);
+        }
+}
+
+static __cpuinit void threshold_remove_device(unsigned int cpu)
+{
+        int bank;
+
+        for (bank = 0; bank < NR_BANKS; ++bank) {
+                if (!(per_cpu(bank_map, cpu) & 1 << bank))
+                        continue;
+                threshold_remove_bank(cpu, bank);
+        }
+        sysdev_unregister(&per_cpu(device_threshold, cpu));
+}
+
+/* link all existing siblings when first core comes up */
+static __cpuinit int threshold_create_symlinks(unsigned int cpu)
+{
+        int bank, err = 0;
+        unsigned int lcpu = 0;
+
+        if (cpu_core_id[cpu])
+                return 0;
+        for_each_cpu_mask(lcpu, cpu_core_map[cpu]) {
+                if (lcpu == cpu)
+                        continue;
+                for (bank = 0; bank < NR_BANKS; ++bank) {
+                        if (!(per_cpu(bank_map, cpu) & 1 << bank))
+                                continue;
+                        if (!shared_bank[bank])
+                                continue;
+                        err = threshold_create_bank(lcpu, bank);
+                }
+        }
+        return err;
+}
+
+/* remove all symlinks before first core dies. */
+static __cpuinit void threshold_remove_symlinks(unsigned int cpu)
+{
+        int bank;
+        unsigned int lcpu = 0;
+        if (cpu_core_id[cpu])
+                return;
+        for_each_cpu_mask(lcpu, cpu_core_map[cpu]) {
+                if (lcpu == cpu)
+                        continue;
+                for (bank = 0; bank < NR_BANKS; ++bank) {
+                        if (!(per_cpu(bank_map, cpu) & 1 << bank))
+                                continue;
+                        if (!shared_bank[bank])
+                                continue;
+                        threshold_remove_bank(lcpu, bank);
+                }
+        }
+}
+#else /* !CONFIG_HOTPLUG_CPU */
+static __cpuinit void threshold_create_symlinks(unsigned int cpu)
+{
+}
+static __cpuinit void threshold_remove_symlinks(unsigned int cpu)
+{
+}
+static void threshold_remove_device(unsigned int cpu)
+{
+}
+#endif
+
+/* get notified when a cpu comes on/off */
+static __cpuinit int threshold_cpu_callback(struct notifier_block *nfb,
+                                            unsigned long action, void *hcpu)
+{
+        /* cpu was unsigned int to begin with */
+        unsigned int cpu = (unsigned long)hcpu;
+
+        if (cpu >= NR_CPUS)
+                goto out;
+
+        switch (action) {
+        case CPU_ONLINE:
+                threshold_create_device(cpu);
+                threshold_create_symlinks(cpu);
+                break;
+        case CPU_DOWN_PREPARE:
+                threshold_remove_symlinks(cpu);
+                break;
+        case CPU_DOWN_FAILED:
+                threshold_create_symlinks(cpu);
+                break;
+        case CPU_DEAD:
+                threshold_remove_device(cpu);
+                break;
+        default:
+                break;
+        }
+      out:
+        return NOTIFY_OK;
+}
+
+static struct notifier_block threshold_cpu_notifier = {
+        .notifier_call = threshold_cpu_callback,
+};
+
+static __init int threshold_init_device(void)
+{
+        int err;
+        int lcpu = 0;
+
+        err = sysdev_class_register(&threshold_sysclass);
+        if (err)
+                goto out;
+
+        /* to hit CPUs online before the notifier is up */
+        for_each_online_cpu(lcpu) {
+                err = threshold_create_device(lcpu);
+                if (err)
+                        goto out;
+        }
+        register_cpu_notifier(&threshold_cpu_notifier);
+
+      out:
+        return err;
+}
+
+device_initcall(threshold_init_device);
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index f16d38d09daf..1105250bf02c 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -42,7 +42,7 @@ int acpi_found_madt;
  * Various Linux-internal data structures created from the
  * MP-table.
  */
-int apic_version [MAX_APICS];
+unsigned char apic_version [MAX_APICS];
 unsigned char mp_bus_id_to_type [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
 int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
 
@@ -65,7 +65,9 @@ unsigned long mp_lapic_addr = 0;
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_id = -1U;
 /* Internal processor count */
-static unsigned int num_processors = 0;
+unsigned int num_processors __initdata = 0;
+
+unsigned disabled_cpus __initdata;
 
 /* Bitmask of physically existing CPUs */
 physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE;
@@ -106,11 +108,14 @@ static int __init mpf_checksum(unsigned char *mp, int len)
 
 static void __init MP_processor_info (struct mpc_config_processor *m)
 {
-        int ver, cpu;
+        int cpu;
+        unsigned char ver;
         static int found_bsp=0;
 
-        if (!(m->mpc_cpuflag & CPU_ENABLED))
+        if (!(m->mpc_cpuflag & CPU_ENABLED)) {
+                disabled_cpus++;
                 return;
+        }
 
         printk(KERN_INFO "Processor #%d %d:%d APIC version %d\n",
                 m->mpc_apicid,
@@ -129,12 +134,14 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
         }
 
         cpu = num_processors++;
-
-        if (m->mpc_apicid > MAX_APICS) {
+        
+#if MAX_APICS < 255     
+        if ((int)m->mpc_apicid > MAX_APICS) {
                 printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n",
                         m->mpc_apicid, MAX_APICS);
                 return;
         }
+#endif
         ver = m->mpc_apicver;
 
         physid_set(m->mpc_apicid, phys_cpu_present_map);
@@ -218,7 +225,7 @@ static void __init MP_intsrc_info (struct mpc_config_intsrc *m)
                         m->mpc_irqtype, m->mpc_irqflag & 3,
                         (m->mpc_irqflag >> 2) & 3, m->mpc_srcbus,
                         m->mpc_srcbusirq, m->mpc_dstapic, m->mpc_dstirq);
-        if (++mp_irq_entries == MAX_IRQ_SOURCES)
+        if (++mp_irq_entries >= MAX_IRQ_SOURCES)
                 panic("Max # of irq sources exceeded!!\n");
 }
 
@@ -549,7 +556,7 @@ void __init get_smp_config (void)
                  * Read the physical hardware table.  Anything here will
                  * override the defaults.
                  */
-                if (!smp_read_mpc((void *)(unsigned long)mpf->mpf_physptr)) {
+                if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
                         smp_found_config = 0;
                         printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
                         printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 88be97c96987..2e28e855ec3c 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -220,6 +220,12 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
            uses the normal dma_mask for alloc_coherent. */
         dma_mask &= *dev->dma_mask;
 
+        /* Why <=? Even when the mask is smaller than 4GB it is often larger 
+           than 16MB and in this case we have a chance of finding fitting memory 
+           in the next higher zone first. If not retry with true GFP_DMA. -AK */
+        if (dma_mask <= 0xffffffff)
+                gfp |= GFP_DMA32;
+
  again:
         memory = dma_alloc_pages(dev, gfp, get_order(size));
         if (memory == NULL)
@@ -245,7 +251,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
                                 }
 
                                 if (!(gfp & GFP_DMA)) { 
-                                        gfp |= GFP_DMA; 
+                                        gfp = (gfp & ~GFP_DMA32) | GFP_DMA;
                                         goto again;
                                 }
                                 return NULL;
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c
index 59be85d9a4bc..5afd63e8cef7 100644
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -144,7 +144,8 @@ void cpu_idle_wait(void)
         do {
                 ssleep(1);
                 for_each_online_cpu(cpu) {
-                        if (cpu_isset(cpu, map) && !per_cpu(cpu_idle_state, cpu))
+                        if (cpu_isset(cpu, map) &&
+                                        !per_cpu(cpu_idle_state, cpu))
                                 cpu_clear(cpu, map);
                 }
                 cpus_and(map, map, cpu_online_map);
@@ -275,7 +276,8 @@ void __show_regs(struct pt_regs * regs)
                 system_utsname.version);
         printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
         printk_address(regs->rip); 
-        printk("\nRSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->rsp, regs->eflags);
+        printk("\nRSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->rsp,
+                regs->eflags);
         printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
                regs->rax, regs->rbx, regs->rcx);
         printk("RDX: %016lx RSI: %016lx RDI: %016lx\n",
@@ -427,15 +429,14 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
         struct pt_regs * childregs;
         struct task_struct *me = current;
 
-        childregs = ((struct pt_regs *) (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
-
+        childregs = ((struct pt_regs *)
+                        (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
         *childregs = *regs;
 
         childregs->rax = 0;
         childregs->rsp = rsp;
-        if (rsp == ~0UL) {
+        if (rsp == ~0UL)
                 childregs->rsp = (unsigned long)childregs;
-        }
 
         p->thread.rsp = (unsigned long) childregs;
         p->thread.rsp0 = (unsigned long) (childregs+1);
@@ -457,7 +458,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
                         p->thread.io_bitmap_max = 0;
                         return -ENOMEM;
                 }
-                memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr, IO_BITMAP_BYTES);
+                memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr,
+                                IO_BITMAP_BYTES);
         } 
 
         /*
@@ -494,7 +496,8 @@ out:
  * - fold all the options into a flag word and test it with a single test.
  * - could test fs/gs bitsliced
  */
-struct task_struct *__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
+struct task_struct *
+__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
         struct thread_struct *prev = &prev_p->thread,
                                  *next = &next_p->thread;
@@ -565,7 +568,8 @@ struct task_struct *__switch_to(struct task_struct *prev_p, struct task_struct *
         prev->userrsp = read_pda(oldrsp); 
         write_pda(oldrsp, next->userrsp); 
         write_pda(pcurrent, next_p); 
-        write_pda(kernelstack, (unsigned long)next_p->thread_info + THREAD_SIZE - PDA_STACKOFFSET);
+        write_pda(kernelstack,
+            (unsigned long)next_p->thread_info + THREAD_SIZE - PDA_STACKOFFSET);
 
         /*
          * Now maybe reload the debug registers
@@ -646,7 +650,9 @@ asmlinkage long sys_fork(struct pt_regs *regs)
         return do_fork(SIGCHLD, regs->rsp, regs, 0, NULL, NULL);
 }
 
-asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp, void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
+asmlinkage long
+sys_clone(unsigned long clone_flags, unsigned long newsp,
+          void __user *parent_tid, void __user *child_tid, struct pt_regs *regs)
 {
         if (!newsp)
                 newsp = regs->rsp;
@@ -682,7 +688,8 @@ unsigned long get_wchan(struct task_struct *p)
                 return 0;
         fp = *(u64 *)(p->thread.rsp);
         do { 
-                if (fp < (unsigned long)stack || fp > (unsigned long)stack+THREAD_SIZE)
+                if (fp < (unsigned long)stack ||
+                    fp > (unsigned long)stack+THREAD_SIZE)
                         return 0; 
                 rip = *(u64 *)(fp+8); 
                 if (!in_sched_functions(rip))
@@ -717,8 +724,8 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                         task->thread.gsindex = 0;
                         task->thread.gs = addr;
                         if (doit) {
-                load_gs_index(0);
-                ret = checking_wrmsrl(MSR_KERNEL_GS_BASE, addr); 
+                                load_gs_index(0);
+                                ret = checking_wrmsrl(MSR_KERNEL_GS_BASE, addr);
                         } 
                 }
                 put_cpu();
@@ -735,7 +742,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                         set_32bit_tls(task, FS_TLS, addr);
                         if (doit) { 
                                 load_TLS(&task->thread, cpu); 
-                                asm volatile("movl %0,%%fs" :: "r" (FS_TLS_SEL));
+                                asm volatile("movl %0,%%fs" :: "r"(FS_TLS_SEL));
                         }
                         task->thread.fsindex = FS_TLS_SEL;
                         task->thread.fs = 0;
@@ -745,8 +752,8 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                         if (doit) {
                                 /* set the selector to 0 to not confuse
                                    __switch_to */
-                asm volatile("movl %0,%%fs" :: "r" (0));
-                ret = checking_wrmsrl(MSR_FS_BASE, addr); 
+                                asm volatile("movl %0,%%fs" :: "r" (0));
+                                ret = checking_wrmsrl(MSR_FS_BASE, addr);
                         }
                 }
                 put_cpu();
@@ -755,9 +762,9 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                 unsigned long base; 
                 if (task->thread.fsindex == FS_TLS_SEL)
                         base = read_32bit_tls(task, FS_TLS);
-                else if (doit) {
+                else if (doit)
                         rdmsrl(MSR_FS_BASE, base);
-                } else
+                else
                         base = task->thread.fs;
                 ret = put_user(base, (unsigned long __user *)addr); 
                 break; 
@@ -766,9 +773,9 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
                 unsigned long base;
                 if (task->thread.gsindex == GS_TLS_SEL)
                         base = read_32bit_tls(task, GS_TLS);
-                else if (doit) {
+                else if (doit)
                         rdmsrl(MSR_KERNEL_GS_BASE, base);
-                } else
+                else
                         base = task->thread.gs;
                 ret = put_user(base, (unsigned long __user *)addr); 
                 break;
diff --git a/arch/x86_64/kernel/reboot.c b/arch/x86_64/kernel/reboot.c
index 47f95687905f..75235ed2b31b 100644
--- a/arch/x86_64/kernel/reboot.c
+++ b/arch/x86_64/kernel/reboot.c
@@ -77,6 +77,7 @@ static inline void kb_wait(void)
 
 void machine_shutdown(void)
 {
+        unsigned long flags;
         /* Stop the cpus and apics */
 #ifdef CONFIG_SMP
         int reboot_cpu_id;
@@ -98,7 +99,7 @@ void machine_shutdown(void)
         smp_send_stop();
 #endif
 
-        local_irq_disable();
+        local_irq_save(flags);
 
 #ifndef CONFIG_SMP
         disable_local_APIC();
@@ -106,7 +107,7 @@ void machine_shutdown(void)
 
         disable_IO_APIC();
 
-        local_irq_enable();
+        local_irq_restore(flags);
 }
 
 void machine_emergency_restart(void)
@@ -120,7 +121,7 @@ void machine_emergency_restart(void)
                 /* Could also try the reset bit in the Hammer NB */
                 switch (reboot_type) { 
                 case BOOT_KBD:
-                for (i=0; i<100; i++) {
+                for (i=0; i<10; i++) {
                         kb_wait();
                         udelay(50);
                         outb(0xfe,0x64);         /* pulse reset low */
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index da0bc3e7bdf5..750e01dcbdf4 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -60,6 +60,7 @@
 #include <asm/setup.h>
 #include <asm/mach_apic.h>
 #include <asm/numa.h>
+#include <asm/sections.h>
 
 /*
  * Machine setup..
@@ -103,7 +104,6 @@ struct edid_info edid_info;
 struct e820map e820;
 
 extern int root_mountflags;
-extern char _text, _etext, _edata, _end;
 
 char command_line[COMMAND_LINE_SIZE];
 
@@ -412,7 +412,6 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
 {
         unsigned long bootmap_size, bootmap;
 
-        memory_present(0, start_pfn, end_pfn);
         bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
         bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
         if (bootmap == -1L)
@@ -571,6 +570,8 @@ void __init setup_arch(char **cmdline_p)
 
         init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));
 
+        zap_low_mappings(0);
+
 #ifdef CONFIG_ACPI
         /*
          * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
@@ -657,8 +658,6 @@ void __init setup_arch(char **cmdline_p)
         }
 #endif
 
-        sparse_init();
-
         paging_init();
 
         check_ioapic();
@@ -793,7 +792,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 #endif
 
         bits = 0;
-        while ((1 << bits) < c->x86_num_cores)
+        while ((1 << bits) < c->x86_max_cores)
                 bits++;
 
         /* Low order bits define the core id (index of core in socket) */
@@ -823,10 +822,10 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
                 if (!node_online(node))
                         node = nearby_node(apicid);
         }
-        cpu_to_node[cpu] = node;
+        numa_set_node(cpu, node);
 
         printk(KERN_INFO "CPU %d(%d) -> Node %d -> Core %d\n",
-                        cpu, c->x86_num_cores, node, cpu_core_id[cpu]);
+                        cpu, c->x86_max_cores, node, cpu_core_id[cpu]);
 #endif
 #endif
 }
@@ -875,9 +874,9 @@ static int __init init_amd(struct cpuinfo_x86 *c)
         display_cacheinfo(c);
 
         if (c->extended_cpuid_level >= 0x80000008) {
-                c->x86_num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
-                if (c->x86_num_cores & (c->x86_num_cores - 1))
-                        c->x86_num_cores = 1;
+                c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
+                if (c->x86_max_cores & (c->x86_max_cores - 1))
+                        c->x86_max_cores = 1;
 
                 amd_detect_cmp(c);
         }
@@ -889,54 +888,44 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
 {
 #ifdef CONFIG_SMP
         u32     eax, ebx, ecx, edx;
-        int     index_msb, tmp;
+        int     index_msb, core_bits;
         int     cpu = smp_processor_id();
-        
+
+        cpuid(1, &eax, &ebx, &ecx, &edx);
+
+        c->apicid = phys_pkg_id(0);
+
         if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
                 return;
 
-        cpuid(1, &eax, &ebx, &ecx, &edx);
         smp_num_siblings = (ebx & 0xff0000) >> 16;
-        
+
         if (smp_num_siblings == 1) {
                 printk(KERN_INFO  "CPU: Hyper-Threading is disabled\n");
-        } else if (smp_num_siblings > 1) {
-                index_msb = 31;
-                /*
-                 * At this point we only support two siblings per
-                 * processor package.
-                 */
+        } else if (smp_num_siblings > 1 ) {
+
                 if (smp_num_siblings > NR_CPUS) {
                         printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
                         smp_num_siblings = 1;
                         return;
                 }
-                tmp = smp_num_siblings;
-                while ((tmp & 0x80000000 ) == 0) {
-                        tmp <<=1 ;
-                        index_msb--;
-                }
-                if (smp_num_siblings & (smp_num_siblings - 1))
-                        index_msb++;
+
+                index_msb = get_count_order(smp_num_siblings);
                 phys_proc_id[cpu] = phys_pkg_id(index_msb);
-                
+
                 printk(KERN_INFO  "CPU: Physical Processor ID: %d\n",
                        phys_proc_id[cpu]);
 
-                smp_num_siblings = smp_num_siblings / c->x86_num_cores;
+                smp_num_siblings = smp_num_siblings / c->x86_max_cores;
 
-                tmp = smp_num_siblings;
-                index_msb = 31;
-                while ((tmp & 0x80000000) == 0) {
-                        tmp <<=1 ;
-                        index_msb--;
-                }
-                if (smp_num_siblings & (smp_num_siblings - 1))
-                        index_msb++;
+                index_msb = get_count_order(smp_num_siblings) ;
 
-                cpu_core_id[cpu] = phys_pkg_id(index_msb);
+                core_bits = get_count_order(c->x86_max_cores);
 
-                if (c->x86_num_cores > 1)
+                cpu_core_id[cpu] = phys_pkg_id(index_msb) &
+                                               ((1 << core_bits) - 1);
+
+                if (c->x86_max_cores > 1)
                         printk(KERN_INFO  "CPU: Processor Core ID: %d\n",
                                cpu_core_id[cpu]);
         }
@@ -975,7 +964,7 @@ static void srat_detect_node(void)
         node = apicid_to_node[hard_smp_processor_id()];
         if (node == NUMA_NO_NODE)
                 node = 0;
-        cpu_to_node[cpu] = node;
+        numa_set_node(cpu, node);
 
         if (acpi_numa > 0)
                 printk(KERN_INFO "CPU %d -> Node %d\n", cpu, node);
@@ -993,13 +982,18 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
                 unsigned eax = cpuid_eax(0x80000008);
                 c->x86_virt_bits = (eax >> 8) & 0xff;
                 c->x86_phys_bits = eax & 0xff;
+                /* CPUID workaround for Intel 0F34 CPU */
+                if (c->x86_vendor == X86_VENDOR_INTEL &&
+                    c->x86 == 0xF && c->x86_model == 0x3 &&
+                    c->x86_mask == 0x4)
+                        c->x86_phys_bits = 36;
         }
 
         if (c->x86 == 15)
                 c->x86_cache_alignment = c->x86_clflush_size * 2;
         if (c->x86 >= 15)
                 set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
-        c->x86_num_cores = intel_num_cpu_cores(c);
+        c->x86_max_cores = intel_num_cpu_cores(c);
 
         srat_detect_node();
 }
@@ -1037,7 +1031,7 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
         c->x86_model_id[0] = '\0';  /* Unset */
         c->x86_clflush_size = 64;
         c->x86_cache_alignment = c->x86_clflush_size;
-        c->x86_num_cores = 1;
+        c->x86_max_cores = 1;
         c->extended_cpuid_level = 0;
         memset(&c->x86_capability, 0, sizeof c->x86_capability);
 
@@ -1060,10 +1054,10 @@ void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
                 c->x86 = (tfms >> 8) & 0xf;
                 c->x86_model = (tfms >> 4) & 0xf;
                 c->x86_mask = tfms & 0xf;
-                if (c->x86 == 0xf) {
+                if (c->x86 == 0xf)
                         c->x86 += (tfms >> 20) & 0xff;
+                if (c->x86 >= 0x6)
                         c->x86_model += ((tfms >> 16) & 0xF) << 4;
-                } 
                 if (c->x86_capability[0] & (1<<19)) 
                         c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
         } else {
@@ -1271,13 +1265,12 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                 seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
         
 #ifdef CONFIG_SMP
-        if (smp_num_siblings * c->x86_num_cores > 1) {
+        if (smp_num_siblings * c->x86_max_cores > 1) {
                 int cpu = c - cpu_data;
                 seq_printf(m, "physical id\t: %d\n", phys_proc_id[cpu]);
-                seq_printf(m, "siblings\t: %d\n",
-                                c->x86_num_cores * smp_num_siblings);
+                seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[cpu]));
                 seq_printf(m, "core id\t\t: %d\n", cpu_core_id[cpu]);
-                seq_printf(m, "cpu cores\t: %d\n", c->x86_num_cores);
+                seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
         }
 #endif  
 
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
index 79190891fbc5..06dc354375c3 100644
--- a/arch/x86_64/kernel/setup64.c
+++ b/arch/x86_64/kernel/setup64.c
@@ -141,7 +141,6 @@ void pda_init(int cpu)
                         panic("cannot allocate irqstack for cpu %d", cpu); 
         }
 
-        asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt)));
 
         pda->irqstackptr += IRQSTACKSIZE-64;
 } 
@@ -197,6 +196,7 @@ void __cpuinit cpu_init (void)
         /* CPU 0 is initialised in head64.c */
         if (cpu != 0) {
                 pda_init(cpu);
+                zap_low_mappings(cpu);
         } else 
                 estacks = boot_exception_stacks; 
 
diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c
index d642fbf3da29..5876df116c92 100644
--- a/arch/x86_64/kernel/signal.c
+++ b/arch/x86_64/kernel/signal.c
@@ -110,6 +110,15 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, unsigned
         COPY(r14);
         COPY(r15);
 
+        /* Kernel saves and restores only the CS segment register on signals,
+         * which is the bare minimum needed to allow mixed 32/64-bit code.
+         * App's signal handler can save/restore other segments if needed. */
+        {
+                unsigned cs;
+                err |= __get_user(cs, &sc->cs);
+                regs->cs = cs | 3;      /* Force into user mode */
+        }
+
         {
                 unsigned int tmpflags;
                 err |= __get_user(tmpflags, &sc->eflags);
@@ -187,6 +196,7 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned lo
 {
         int err = 0;
 
+        err |= __put_user(regs->cs, &sc->cs);
         err |= __put_user(0, &sc->gs);
         err |= __put_user(0, &sc->fs);
 
@@ -318,7 +328,14 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 
         regs->rsp = (unsigned long)frame;
 
+        /* Set up the CS register to run signal handlers in 64-bit mode,
+           even if the handler happens to be interrupting 32-bit code. */
+        regs->cs = __USER_CS;
+
+        /* This, by contrast, has nothing to do with segment registers -
+           see include/asm-x86_64/uaccess.h for details. */
         set_fs(USER_DS);
+
         regs->eflags &= ~TF_MASK;
         if (test_thread_flag(TIF_SINGLESTEP))
                 ptrace_notify(SIGTRAP);
diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c
index 9db9dda161b4..cfc3d9dccbd9 100644
--- a/arch/x86_64/kernel/smp.c
+++ b/arch/x86_64/kernel/smp.c
@@ -28,8 +28,6 @@
 #include <asm/proto.h>
 #include <asm/apicdef.h>
 
-#define __cpuinit __init
-
 /*
  *      Smarter SMP flushing macros. 
  *              c/o Linus Torvalds.
@@ -452,13 +450,14 @@ int smp_call_function (void (*func) (void *info), void *info, int nonatomic,
 
 void smp_stop_cpu(void)
 {
+        unsigned long flags;
         /*
          * Remove this CPU:
          */
         cpu_clear(smp_processor_id(), cpu_online_map);
-        local_irq_disable();
+        local_irq_save(flags);
         disable_local_APIC();
-        local_irq_enable(); 
+        local_irq_restore(flags);
 }
 
 static void smp_really_stop_cpu(void *dummy)
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index c4e59bbdc187..683c33f7b967 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -64,6 +64,7 @@
 int smp_num_siblings = 1;
 /* Package ID of each logical CPU */
 u8 phys_proc_id[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID };
+/* core ID of each logical CPU */
 u8 cpu_core_id[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID };
 
 /* Bitmask of currently online CPUs */
@@ -87,7 +88,10 @@ struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
 /* Set when the idlers are all forked */
 int smp_threads_ready;
 
+/* representing HT siblings of each logical CPU */
 cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
+
+/* representing HT and core siblings of each logical CPU */
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_core_map);
 
@@ -434,30 +438,59 @@ void __cpuinit smp_callin(void)
         cpu_set(cpuid, cpu_callin_map);
 }
 
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
 static inline void set_cpu_sibling_map(int cpu)
 {
         int i;
+        struct cpuinfo_x86 *c = cpu_data;
+
+        cpu_set(cpu, cpu_sibling_setup_map);
 
         if (smp_num_siblings > 1) {
-                for_each_cpu(i) {
-                        if (cpu_core_id[cpu] == cpu_core_id[i]) {
+                for_each_cpu_mask(i, cpu_sibling_setup_map) {
+                        if (phys_proc_id[cpu] == phys_proc_id[i] &&
+                            cpu_core_id[cpu] == cpu_core_id[i]) {
                                 cpu_set(i, cpu_sibling_map[cpu]);
                                 cpu_set(cpu, cpu_sibling_map[i]);
+                                cpu_set(i, cpu_core_map[cpu]);
+                                cpu_set(cpu, cpu_core_map[i]);
                         }
                 }
         } else {
                 cpu_set(cpu, cpu_sibling_map[cpu]);
         }
 
-        if (current_cpu_data.x86_num_cores > 1) {
-                for_each_cpu(i) {
-                        if (phys_proc_id[cpu] == phys_proc_id[i]) {
-                                cpu_set(i, cpu_core_map[cpu]);
-                                cpu_set(cpu, cpu_core_map[i]);
-                        }
-                }
-        } else {
+        if (current_cpu_data.x86_max_cores == 1) {
                 cpu_core_map[cpu] = cpu_sibling_map[cpu];
+                c[cpu].booted_cores = 1;
+                return;
+        }
+
+        for_each_cpu_mask(i, cpu_sibling_setup_map) {
+                if (phys_proc_id[cpu] == phys_proc_id[i]) {
+                        cpu_set(i, cpu_core_map[cpu]);
+                        cpu_set(cpu, cpu_core_map[i]);
+                        /*
+                         *  Does this new cpu bringup a new core?
+                         */
+                        if (cpus_weight(cpu_sibling_map[cpu]) == 1) {
+                                /*
+                                 * for each core in package, increment
+                                 * the booted_cores for this new cpu
+                                 */
+                                if (first_cpu(cpu_sibling_map[i]) == i)
+                                        c[cpu].booted_cores++;
+                                /*
+                                 * increment the core count for all
+                                 * the other cpus in this package
+                                 */
+                                if (i != cpu)
+                                        c[i].booted_cores++;
+                        } else if (i != cpu && !c[cpu].booted_cores)
+                                c[cpu].booted_cores = c[i].booted_cores;
+                }
         }
 }
 
@@ -879,6 +912,9 @@ static __init void disable_smp(void)
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
+
+int additional_cpus __initdata = -1;
+
 /*
  * cpu_possible_map should be static, it cannot change as cpu's
  * are onlined, or offlined. The reason is per-cpu data-structures
@@ -887,14 +923,38 @@ static __init void disable_smp(void)
  * cpu_present_map on the other hand can change dynamically.
  * In case when cpu_hotplug is not compiled, then we resort to current
  * behaviour, which is cpu_possible == cpu_present.
- * If cpu-hotplug is supported, then we need to preallocate for all
- * those NR_CPUS, hence cpu_possible_map represents entire NR_CPUS range.
  * - Ashok Raj
+ *
+ * Three ways to find out the number of additional hotplug CPUs:
+ * - If the BIOS specified disabled CPUs in ACPI/mptables use that.
+ * - otherwise use half of the available CPUs or 2, whatever is more.
+ * - The user can overwrite it with additional_cpus=NUM
+ * We do this because additional CPUs waste a lot of memory.
+ * -AK
  */
 __init void prefill_possible_map(void)
 {
         int i;
-        for (i = 0; i < NR_CPUS; i++)
+        int possible;
+
+        if (additional_cpus == -1) {
+                if (disabled_cpus > 0) {
+                        additional_cpus = disabled_cpus;
+                } else {
+                        additional_cpus = num_processors / 2;
+                        if (additional_cpus == 0)
+                                additional_cpus = 2;
+                }
+        }
+        possible = num_processors + additional_cpus;
+        if (possible > NR_CPUS) 
+                possible = NR_CPUS;
+
+        printk(KERN_INFO "SMP: Allowing %d CPUs, %d hotplug CPUs\n",
+                possible,
+                max_t(int, possible - num_processors, 0));
+
+        for (i = 0; i < possible; i++)
                 cpu_set(i, cpu_possible_map);
 }
 #endif
@@ -965,6 +1025,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         nmi_watchdog_default();
         current_cpu_data = boot_cpu_data;
         current_thread_info()->cpu = 0;  /* needed? */
+        set_cpu_sibling_map(0);
 
         if (smp_sanity_check(max_cpus) < 0) {
                 printk(KERN_INFO "SMP disabled\n");
@@ -1008,8 +1069,6 @@ void __init smp_prepare_boot_cpu(void)
         int me = smp_processor_id();
         cpu_set(me, cpu_online_map);
         cpu_set(me, cpu_callout_map);
-        cpu_set(0, cpu_sibling_map[0]);
-        cpu_set(0, cpu_core_map[0]);
         per_cpu(cpu_state, me) = CPU_ONLINE;
 }
 
@@ -1062,9 +1121,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
  */
 void __init smp_cpus_done(unsigned int max_cpus)
 {
-#ifndef CONFIG_HOTPLUG_CPU
-        zap_low_mappings();
-#endif
         smp_cleanup_boot();
 
 #ifdef CONFIG_X86_IO_APIC
@@ -1081,15 +1137,24 @@ void __init smp_cpus_done(unsigned int max_cpus)
 static void remove_siblinginfo(int cpu)
 {
         int sibling;
+        struct cpuinfo_x86 *c = cpu_data;
 
+        for_each_cpu_mask(sibling, cpu_core_map[cpu]) {
+                cpu_clear(cpu, cpu_core_map[sibling]);
+                /*
+                 * last thread sibling in this cpu core going down
+                 */
+                if (cpus_weight(cpu_sibling_map[cpu]) == 1)
+                        c[sibling].booted_cores--;
+        }
+                        
         for_each_cpu_mask(sibling, cpu_sibling_map[cpu])
                 cpu_clear(cpu, cpu_sibling_map[sibling]);
-        for_each_cpu_mask(sibling, cpu_core_map[cpu])
-                cpu_clear(cpu, cpu_core_map[sibling]);
         cpus_clear(cpu_sibling_map[cpu]);
         cpus_clear(cpu_core_map[cpu]);
         phys_proc_id[cpu] = BAD_APICID;
         cpu_core_id[cpu] = BAD_APICID;
+        cpu_clear(cpu, cpu_sibling_setup_map);
 }
 
 void remove_cpu_from_maps(void)
@@ -1153,6 +1218,12 @@ void __cpu_die(unsigned int cpu)
         printk(KERN_ERR "CPU %u didn't die...\n", cpu);
 }
 
+static __init int setup_additional_cpus(char *s)
+{
+        return get_option(&s, &additional_cpus);
+}
+__setup("additional_cpus=", setup_additional_cpus);
+
 #else /* ... !CONFIG_HOTPLUG_CPU */
 
 int __cpu_disable(void)
diff --git a/arch/x86_64/kernel/sys_x86_64.c b/arch/x86_64/kernel/sys_x86_64.c
index cc7821c68851..6449ea8fe756 100644
--- a/arch/x86_64/kernel/sys_x86_64.c
+++ b/arch/x86_64/kernel/sys_x86_64.c
@@ -154,17 +154,3 @@ asmlinkage long sys_uname(struct new_utsname __user * name)
                 err |= copy_to_user(&name->machine, "i686", 5);                 
         return err ? -EFAULT : 0;
 }
-
-asmlinkage long sys_time64(long __user * tloc)
-{
-        struct timeval now; 
-        int i; 
-
-        do_gettimeofday(&now);
-        i = now.tv_sec;
-        if (tloc) {
-                if (put_user(i,tloc))
-                        i = -EFAULT;
-        }
-        return i;
-}
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index b5e09e6b5536..bf337f493189 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -428,19 +428,6 @@ static void __kprobes do_trap(int trapnr, int signr, char *str,
 {
         conditional_sti(regs);
 
-#ifdef CONFIG_CHECKING
-       { 
-               unsigned long gs; 
-               struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); 
-               rdmsrl(MSR_GS_BASE, gs); 
-               if (gs != (unsigned long)pda) { 
-                       wrmsrl(MSR_GS_BASE, pda); 
-                       printk("%s: wrong gs %lx expected %p rip %lx\n", str, gs, pda,
-                              regs->rip);
-               }
-       }
-#endif
-
         if (user_mode(regs)) {
                 struct task_struct *tsk = current;
 
@@ -513,20 +500,6 @@ asmlinkage void __kprobes do_general_protection(struct pt_regs * regs,
 {
         conditional_sti(regs);
 
-#ifdef CONFIG_CHECKING
-       { 
-               unsigned long gs; 
-               struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); 
-               rdmsrl(MSR_GS_BASE, gs); 
-               if (gs != (unsigned long)pda) { 
-                       wrmsrl(MSR_GS_BASE, pda); 
-                       oops_in_progress++;
-                       printk("general protection handler: wrong gs %lx expected %p\n", gs, pda);
-                       oops_in_progress--;
-               }
-       }
-#endif
-
         if (user_mode(regs)) {
                 struct task_struct *tsk = current;
 
@@ -665,19 +638,6 @@ asmlinkage void __kprobes do_debug(struct pt_regs * regs,
         struct task_struct *tsk = current;
         siginfo_t info;
 
-#ifdef CONFIG_CHECKING
-       { 
-               /* RED-PEN interaction with debugger - could destroy gs */
-               unsigned long gs; 
-               struct x8664_pda *pda = cpu_pda + safe_smp_processor_id(); 
-               rdmsrl(MSR_GS_BASE, gs); 
-               if (gs != (unsigned long)pda) { 
-                       wrmsrl(MSR_GS_BASE, pda); 
-                       printk("debug handler: wrong gs %lx expected %p\n", gs, pda);
-               }
-       }
-#endif
-
         get_debugreg(condition, 6);
 
         if (notify_die(DIE_DEBUG, "debug", regs, condition, error_code,
@@ -888,6 +848,10 @@ asmlinkage void __attribute__((weak)) smp_thermal_interrupt(void)
 {
 }
 
+asmlinkage void __attribute__((weak)) mce_threshold_interrupt(void)
+{
+}
+
 /*
  *  'math_state_restore()' saves the current math information in the
  * old math state array, and gets the new ones from the current task
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index 6dd642cad2ef..58b19215b4b3 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -50,7 +50,7 @@ SECTIONS
         *(.bss.page_aligned)    
         *(.bss)
         }
-  __bss_end = .;
+  __bss_stop = .;
 
   . = ALIGN(PAGE_SIZE);
   . = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
index fd99ddd009bc..4a54221e10bc 100644
--- a/arch/x86_64/kernel/x8664_ksyms.c
+++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -203,3 +203,6 @@ EXPORT_SYMBOL(flush_tlb_page);
 #endif
 
 EXPORT_SYMBOL(cpu_khz);
+
+EXPORT_SYMBOL(load_gs_index);
+
diff --git a/arch/x86_64/lib/clear_page.S b/arch/x86_64/lib/clear_page.S
index 30a9da458c15..43d9fa136180 100644
--- a/arch/x86_64/lib/clear_page.S
+++ b/arch/x86_64/lib/clear_page.S
@@ -5,46 +5,8 @@
         .globl clear_page
         .p2align 4
 clear_page:
-        xorl   %eax,%eax
-        movl   $4096/64,%ecx
-        .p2align 4
-.Lloop:
-        decl    %ecx
-#define PUT(x) movq %rax,x*8(%rdi) 
-        movq %rax,(%rdi)
-        PUT(1)
-        PUT(2)
-        PUT(3)
-        PUT(4)
-        PUT(5)
-        PUT(6)
-        PUT(7)
-        leaq    64(%rdi),%rdi
-        jnz     .Lloop
-        nop
-        ret
-clear_page_end: 
-        
-        /* C stepping K8 run faster using the string instructions.
-           It is also a lot simpler. Use this when possible */
-        
-#include <asm/cpufeature.h>
-                
-        .section .altinstructions,"a"
-        .align 8
-        .quad  clear_page
-        .quad  clear_page_c
-        .byte  X86_FEATURE_K8_C
-        .byte  clear_page_end-clear_page        
-        .byte  clear_page_c_end-clear_page_c
-        .previous
-
-        .section .altinstr_replacement,"ax"
-clear_page_c:
         movl $4096/8,%ecx
         xorl %eax,%eax
         rep 
         stosq
         ret
-clear_page_c_end:
-        .previous
diff --git a/arch/x86_64/lib/copy_page.S b/arch/x86_64/lib/copy_page.S
index dd3aa47b6bf5..621a19769406 100644
--- a/arch/x86_64/lib/copy_page.S
+++ b/arch/x86_64/lib/copy_page.S
@@ -8,94 +8,7 @@
         .globl copy_page
         .p2align 4
 copy_page:
-        subq    $3*8,%rsp
-        movq    %rbx,(%rsp)
-        movq    %r12,1*8(%rsp)
-        movq    %r13,2*8(%rsp)
-                        
-        movl    $(4096/64)-5,%ecx
-        .p2align 4
-.Loop64:        
-        dec     %rcx
-
-        movq        (%rsi), %rax
-        movq      8 (%rsi), %rbx
-        movq     16 (%rsi), %rdx
-        movq     24 (%rsi), %r8
-        movq     32 (%rsi), %r9
-        movq     40 (%rsi), %r10
-        movq     48 (%rsi), %r11
-        movq     56 (%rsi), %r12
-
-        prefetcht0 5*64(%rsi)
-
-        movq     %rax,    (%rdi)
-        movq     %rbx,  8 (%rdi)
-        movq     %rdx, 16 (%rdi)
-        movq     %r8,  24 (%rdi)
-        movq     %r9,  32 (%rdi)
-        movq     %r10, 40 (%rdi)
-        movq     %r11, 48 (%rdi)
-        movq     %r12, 56 (%rdi)
-
-        leaq    64 (%rsi), %rsi
-        leaq    64 (%rdi), %rdi
-
-        jnz     .Loop64
-
-        movl    $5,%ecx
-        .p2align 4
-.Loop2: 
-        decl   %ecx
-
-        movq        (%rsi), %rax
-        movq      8 (%rsi), %rbx
-        movq     16 (%rsi), %rdx
-        movq     24 (%rsi), %r8
-        movq     32 (%rsi), %r9
-        movq     40 (%rsi), %r10
-        movq     48 (%rsi), %r11
-        movq     56 (%rsi), %r12
-
-        movq     %rax,    (%rdi)
-        movq     %rbx,  8 (%rdi)
-        movq     %rdx, 16 (%rdi)
-        movq     %r8,  24 (%rdi)
-        movq     %r9,  32 (%rdi)
-        movq     %r10, 40 (%rdi)
-        movq     %r11, 48 (%rdi)
-        movq     %r12, 56 (%rdi)
-        
-        leaq    64(%rdi),%rdi                   
-        leaq    64(%rsi),%rsi                   
-        
-        jnz     .Loop2          
-        
-        movq    (%rsp),%rbx
-        movq    1*8(%rsp),%r12
-        movq    2*8(%rsp),%r13
-        addq    $3*8,%rsp
-        ret
-        
-        /* C stepping K8 run faster using the string copy instructions.
-           It is also a lot simpler. Use this when possible */
-
-#include <asm/cpufeature.h>             
-                
-        .section .altinstructions,"a"
-        .align 8
-        .quad  copy_page
-        .quad  copy_page_c
-        .byte  X86_FEATURE_K8_C
-        .byte  copy_page_c_end-copy_page_c
-        .byte  copy_page_c_end-copy_page_c
-        .previous
-
-        .section .altinstr_replacement,"ax"
-copy_page_c:
         movl $4096/8,%ecx
         rep 
         movsq 
         ret
-copy_page_c_end:
-        .previous
diff --git a/arch/x86_64/lib/memcpy.S b/arch/x86_64/lib/memcpy.S
index c6c46494fef5..92dd80544602 100644
--- a/arch/x86_64/lib/memcpy.S
+++ b/arch/x86_64/lib/memcpy.S
@@ -11,6 +11,8 @@
  * 
  * Output:
  * rax original destination
+ * 
+ * TODO: check best memcpy for PSC
  */     
 
         .globl __memcpy
@@ -18,95 +20,6 @@
         .p2align 4
 __memcpy:
 memcpy:         
-        pushq %rbx
-        movq %rdi,%rax
-
-        movl %edx,%ecx
-        shrl $6,%ecx
-        jz .Lhandle_tail
-        
-        .p2align 4
-.Lloop_64:
-        decl %ecx
-        
-        movq (%rsi),%r11
-        movq 8(%rsi),%r8
-
-        movq %r11,(%rdi)
-        movq %r8,1*8(%rdi)
-
-        movq 2*8(%rsi),%r9
-        movq 3*8(%rsi),%r10
-
-        movq %r9,2*8(%rdi)
-        movq %r10,3*8(%rdi)
-                
-        movq 4*8(%rsi),%r11
-        movq 5*8(%rsi),%r8
-
-        movq %r11,4*8(%rdi)
-        movq %r8,5*8(%rdi)
-
-        movq 6*8(%rsi),%r9
-        movq 7*8(%rsi),%r10
-
-        movq %r9,6*8(%rdi)
-        movq %r10,7*8(%rdi)
-
-        leaq 64(%rsi),%rsi
-        leaq 64(%rdi),%rdi
-        jnz  .Lloop_64
-
-.Lhandle_tail:
-        movl %edx,%ecx
-        andl $63,%ecx
-        shrl $3,%ecx
-        jz   .Lhandle_7
-        .p2align 4
-.Lloop_8: 
-        decl %ecx
-        movq (%rsi),%r8
-        movq %r8,(%rdi) 
-        leaq 8(%rdi),%rdi
-        leaq 8(%rsi),%rsi
-        jnz  .Lloop_8
-
-.Lhandle_7:
-        movl %edx,%ecx
-        andl $7,%ecx
-        jz .Lende
-        .p2align 4
-.Lloop_1:
-        movb (%rsi),%r8b
-        movb %r8b,(%rdi) 
-        incq %rdi
-        incq %rsi
-        decl %ecx
-        jnz .Lloop_1
-        
-.Lende:         
-        popq %rbx
-        ret
-.Lfinal:
-        
-        /* C stepping K8 run faster using the string copy instructions.
-           It is also a lot simpler. Use this when possible */
-        
-        .section .altinstructions,"a"
-        .align 8
-        .quad  memcpy
-        .quad  memcpy_c
-        .byte  X86_FEATURE_K8_C
-        .byte  .Lfinal-memcpy
-        .byte  memcpy_c_end-memcpy_c    
-        .previous
-
-        .section .altinstr_replacement,"ax"
- /* rdi destination
-  * rsi source
-  * rdx count
-  */                    
-memcpy_c:
         movq %rdi,%rax
         movl %edx,%ecx
         shrl $3,%ecx
@@ -117,5 +30,3 @@ memcpy_c:
         rep
         movsb
         ret
-memcpy_c_end:
-        .previous
diff --git a/arch/x86_64/lib/memset.S b/arch/x86_64/lib/memset.S
index 4b4c40638640..2aa48f24ed1e 100644
--- a/arch/x86_64/lib/memset.S
+++ b/arch/x86_64/lib/memset.S
@@ -13,98 +13,6 @@
         .p2align 4
 memset: 
 __memset:
-        movq %rdi,%r10
-        movq %rdx,%r11
-
-        /* expand byte value  */
-        movzbl %sil,%ecx
-        movabs $0x0101010101010101,%rax
-        mul    %rcx             /* with rax, clobbers rdx */
-
-        /* align dst */
-        movl  %edi,%r9d         
-        andl  $7,%r9d   
-        jnz  .Lbad_alignment
-.Lafter_bad_alignment:
-        
-        movl %r11d,%ecx
-        shrl $6,%ecx
-        jz       .Lhandle_tail
-
-        .p2align 4
-.Lloop_64:      
-        decl   %ecx
-        movq  %rax,(%rdi) 
-        movq  %rax,8(%rdi) 
-        movq  %rax,16(%rdi) 
-        movq  %rax,24(%rdi) 
-        movq  %rax,32(%rdi) 
-        movq  %rax,40(%rdi) 
-        movq  %rax,48(%rdi) 
-        movq  %rax,56(%rdi) 
-        leaq  64(%rdi),%rdi
-        jnz    .Lloop_64
-
-        /* Handle tail in loops. The loops should be faster than hard
-           to predict jump tables. */ 
-        .p2align 4         
-.Lhandle_tail:
-        movl    %r11d,%ecx
-        andl    $63&(~7),%ecx
-        jz              .Lhandle_7
-        shrl    $3,%ecx
-        .p2align 4
-.Lloop_8:
-        decl   %ecx
-        movq  %rax,(%rdi)
-        leaq  8(%rdi),%rdi
-        jnz    .Lloop_8
-
-.Lhandle_7:
-        movl    %r11d,%ecx
-        andl    $7,%ecx
-        jz      .Lende
-        .p2align 4
-.Lloop_1:
-        decl    %ecx
-        movb    %al,(%rdi)
-        leaq    1(%rdi),%rdi
-        jnz     .Lloop_1
-        
-.Lende: 
-        movq    %r10,%rax
-        ret
-
-.Lbad_alignment:
-        cmpq $7,%r11
-        jbe     .Lhandle_7
-        movq %rax,(%rdi)        /* unaligned store */
-        movq $8,%r8                     
-        subq %r9,%r8 
-        addq %r8,%rdi
-        subq %r8,%r11
-        jmp .Lafter_bad_alignment
-
-        /* C stepping K8 run faster using the string instructions.
-           It is also a lot simpler. Use this when possible */
-
-#include <asm/cpufeature.h>     
-                
-        .section .altinstructions,"a"
-        .align 8
-        .quad  memset
-        .quad  memset_c
-        .byte  X86_FEATURE_K8_C
-        .byte  memset_c_end-memset_c
-        .byte  memset_c_end-memset_c
-        .previous
-
-        .section .altinstr_replacement,"ax"
- /* rdi destination
-  * rsi value
-  * rdx count
-  */                    
-memset_c:       
         movq %rdi,%r9
         movl %edx,%r8d
         andl $7,%r8d            
@@ -121,5 +29,3 @@ memset_c:
         stosb
         movq %r9,%rax
         ret
-memset_c_end:
-        .previous
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index b75b872ec154..3a63707a698b 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -308,18 +308,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
         unsigned long flags;
         siginfo_t info;
 
-#ifdef CONFIG_CHECKING
-        { 
-                unsigned long gs; 
-                struct x8664_pda *pda = cpu_pda + stack_smp_processor_id(); 
-                rdmsrl(MSR_GS_BASE, gs); 
-                if (gs != (unsigned long)pda) { 
-                        wrmsrl(MSR_GS_BASE, pda); 
-                        printk("page_fault: wrong gs %lx expected %p\n", gs, pda);
-                }
-        }
-#endif
-
         /* get the address */
         __asm__("movq %%cr2,%0":"=r" (address));
         if (notify_die(DIE_PAGE_FAULT, "page fault", regs, error_code, 14,
@@ -571,3 +559,10 @@ do_sigbus:
         force_sig_info(SIGBUS, &info, tsk);
         return;
 }
+
+static int __init enable_pagefaulttrace(char *str)
+{
+        page_fault_trace = 1;
+        return 0;
+}
+__setup("pagefaulttrace", enable_pagefaulttrace);
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index e60a1a848de8..286f6a624c3a 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -22,6 +22,7 @@
 #include <linux/pagemap.h>
 #include <linux/bootmem.h>
 #include <linux/proc_fs.h>
+#include <linux/pci.h>
 
 #include <asm/processor.h>
 #include <asm/system.h>
@@ -36,16 +37,13 @@
 #include <asm/mmu_context.h>
 #include <asm/proto.h>
 #include <asm/smp.h>
+#include <asm/sections.h>
 
 #ifndef Dprintk
 #define Dprintk(x...)
 #endif
 
-#ifdef CONFIG_GART_IOMMU
-extern int swiotlb;
-#endif
-
-extern char _stext[];
+static unsigned long dma_reserve __initdata;
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
@@ -86,9 +84,6 @@ void show_mem(void)
 
 /* References to section boundaries */
 
-extern char _text, _etext, _edata, __bss_start, _end[];
-extern char __init_begin, __init_end;
-
 int after_bootmem;
 
 static void *spp_getpage(void)
@@ -308,42 +303,81 @@ void __init init_memory_mapping(unsigned long start, unsigned long end)
                table_end<<PAGE_SHIFT);
 }
 
-extern struct x8664_pda cpu_pda[NR_CPUS];
+void __cpuinit zap_low_mappings(int cpu)
+{
+        if (cpu == 0) {
+                pgd_t *pgd = pgd_offset_k(0UL);
+                pgd_clear(pgd);
+        } else {
+                /*
+                 * For AP's, zap the low identity mappings by changing the cr3
+                 * to init_level4_pgt and doing local flush tlb all
+                 */
+                asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt)));
+        }
+        __flush_tlb_all();
+}
 
-/* Assumes all CPUs still execute in init_mm */
-void zap_low_mappings(void)
+/* Compute zone sizes for the DMA and DMA32 zones in a node. */
+__init void
+size_zones(unsigned long *z, unsigned long *h,
+           unsigned long start_pfn, unsigned long end_pfn)
 {
-        pgd_t *pgd = pgd_offset_k(0UL);
-        pgd_clear(pgd);
-        flush_tlb_all();
+        int i;
+        unsigned long w;
+
+        for (i = 0; i < MAX_NR_ZONES; i++)
+                z[i] = 0;
+
+        if (start_pfn < MAX_DMA_PFN)
+                z[ZONE_DMA] = MAX_DMA_PFN - start_pfn;
+        if (start_pfn < MAX_DMA32_PFN) {
+                unsigned long dma32_pfn = MAX_DMA32_PFN;
+                if (dma32_pfn > end_pfn)
+                        dma32_pfn = end_pfn;
+                z[ZONE_DMA32] = dma32_pfn - start_pfn;
+        }
+        z[ZONE_NORMAL] = end_pfn - start_pfn;
+
+        /* Remove lower zones from higher ones. */
+        w = 0;
+        for (i = 0; i < MAX_NR_ZONES; i++) {
+                if (z[i])
+                        z[i] -= w;
+                w += z[i];
+        }
+
+        /* Compute holes */
+        w = 0;
+        for (i = 0; i < MAX_NR_ZONES; i++) {
+                unsigned long s = w;
+                w += z[i];
+                h[i] = e820_hole_size(s, w);
+        }
+
+        /* Add the space pace needed for mem_map to the holes too. */
+        for (i = 0; i < MAX_NR_ZONES; i++)
+                h[i] += (z[i] * sizeof(struct page)) / PAGE_SIZE;
+
+        /* The 16MB DMA zone has the kernel and other misc mappings.
+           Account them too */
+        if (h[ZONE_DMA]) {
+                h[ZONE_DMA] += dma_reserve;
+                if (h[ZONE_DMA] >= z[ZONE_DMA]) {
+                        printk(KERN_WARNING
+                                "Kernel too large and filling up ZONE_DMA?\n");
+                        h[ZONE_DMA] = z[ZONE_DMA];
+                }
+        }
 }
 
 #ifndef CONFIG_NUMA
 void __init paging_init(void)
 {
-        {
-                unsigned long zones_size[MAX_NR_ZONES];
-                unsigned long holes[MAX_NR_ZONES];
-                unsigned int max_dma;
-
-                memset(zones_size, 0, sizeof(zones_size));
-                memset(holes, 0, sizeof(holes));
-
-                max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
-
-                if (end_pfn < max_dma) {
-                        zones_size[ZONE_DMA] = end_pfn;
-                        holes[ZONE_DMA] = e820_hole_size(0, end_pfn);
-                } else {
-                        zones_size[ZONE_DMA] = max_dma;
-                        holes[ZONE_DMA] = e820_hole_size(0, max_dma);
-                        zones_size[ZONE_NORMAL] = end_pfn - max_dma;
-                        holes[ZONE_NORMAL] = e820_hole_size(max_dma, end_pfn);
-                }
-                free_area_init_node(0, NODE_DATA(0), zones_size,
-                        __pa(PAGE_OFFSET) >> PAGE_SHIFT, holes);
-        }
-        return;
+        unsigned long zones[MAX_NR_ZONES], holes[MAX_NR_ZONES];
+        size_zones(zones, holes, 0, end_pfn);
+        free_area_init_node(0, NODE_DATA(0), zones,
+                            __pa(PAGE_OFFSET) >> PAGE_SHIFT, holes);
 }
 #endif
 
@@ -438,19 +472,16 @@ void __init mem_init(void)
                 datasize >> 10,
                 initsize >> 10);
 
+#ifdef CONFIG_SMP
         /*
-         * Subtle. SMP is doing its boot stuff late (because it has to
-         * fork idle threads) - but it also needs low mappings for the
-         * protected-mode entry to work. We zap these entries only after
-         * the WP-bit has been tested.
+         * Sync boot_level4_pgt mappings with the init_level4_pgt
+         * except for the low identity mappings which are already zapped
+         * in init_level4_pgt. This sync-up is essential for AP's bringup
          */
-#ifndef CONFIG_SMP
-        zap_low_mappings();
+        memcpy(boot_level4_pgt+1, init_level4_pgt+1, (PTRS_PER_PGD-1)*sizeof(pgd_t));
 #endif
 }
 
-extern char __initdata_begin[], __initdata_end[];
-
 void free_initmem(void)
 {
         unsigned long addr;
@@ -464,7 +495,7 @@ void free_initmem(void)
                 totalram_pages++;
         }
         memset(__initdata_begin, 0xba, __initdata_end - __initdata_begin);
-        printk ("Freeing unused kernel memory: %luk freed\n", (&__init_end - &__init_begin) >> 10);
+        printk ("Freeing unused kernel memory: %luk freed\n", (__init_end - __init_begin) >> 10);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
@@ -491,6 +522,8 @@ void __init reserve_bootmem_generic(unsigned long phys, unsigned len)
 #else                   
         reserve_bootmem(phys, len);    
 #endif
+        if (phys+len <= MAX_DMA_PFN*PAGE_SIZE)
+                dma_reserve += len / PAGE_SIZE;
 }
 
 int kern_addr_valid(unsigned long addr) 
@@ -532,10 +565,6 @@ extern int exception_trace, page_fault_trace;
 static ctl_table debug_table2[] = {
         { 99, "exception-trace", &exception_trace, sizeof(int), 0644, NULL,
           proc_dointvec },
-#ifdef CONFIG_CHECKING
-        { 100, "page-fault-trace", &page_fault_trace, sizeof(int), 0644, NULL,
-          proc_dointvec },
-#endif
         { 0, }
 }; 
 
diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c
index 65417b040c1b..a5663e0bb01c 100644
--- a/arch/x86_64/mm/k8topology.c
+++ b/arch/x86_64/mm/k8topology.c
@@ -108,6 +108,7 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end)
                 limit >>= 16; 
                 limit <<= 24; 
                 limit |= (1<<24)-1;
+                limit++;
 
                 if (limit > end_pfn << PAGE_SHIFT)
                         limit = end_pfn << PAGE_SHIFT;
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c
index 214803821001..a828a01739cc 100644
--- a/arch/x86_64/mm/numa.c
+++ b/arch/x86_64/mm/numa.c
@@ -38,38 +38,57 @@ cpumask_t node_to_cpumask[MAX_NUMNODES] __read_mostly;
 
 int numa_off __initdata;
 
-int __init compute_hash_shift(struct node *nodes, int numnodes)
+
+/*
+ * Given a shift value, try to populate memnodemap[]
+ * Returns :
+ * 1 if OK
+ * 0 if memnodmap[] too small (of shift too small)
+ * -1 if node overlap or lost ram (shift too big)
+ */
+static int __init populate_memnodemap(
+        const struct node *nodes, int numnodes, int shift)
 {
         int i; 
-        int shift = 20;
-        unsigned long addr,maxend=0;
-        
-        for (i = 0; i < numnodes; i++)
-                if ((nodes[i].start != nodes[i].end) && (nodes[i].end > maxend))
-                                maxend = nodes[i].end;
+        int res = -1;
+        unsigned long addr, end;
 
-        while ((1UL << shift) <  (maxend / NODEMAPSIZE))
-                shift++;
-
-        printk (KERN_DEBUG"Using %d for the hash shift. Max adder is %lx \n",
-                        shift,maxend);
-        memset(memnodemap,0xff,sizeof(*memnodemap) * NODEMAPSIZE);
+        memset(memnodemap, 0xff, sizeof(memnodemap));
         for (i = 0; i < numnodes; i++) {
-                if (nodes[i].start == nodes[i].end)
+                addr = nodes[i].start;
+                end = nodes[i].end;
+                if (addr >= end)
                         continue;
-                for (addr = nodes[i].start;
-                     addr < nodes[i].end;
-                     addr += (1UL << shift)) {
-                        if (memnodemap[addr >> shift] != 0xff) {
-                                printk(KERN_INFO
-        "Your memory is not aligned you need to rebuild your kernel "
-        "with a bigger NODEMAPSIZE shift=%d adder=%lu\n",
-                                        shift,addr);
+                if ((end >> shift) >= NODEMAPSIZE)
+                        return 0;
+                do {
+                        if (memnodemap[addr >> shift] != 0xff)
                                 return -1;
-                        } 
                         memnodemap[addr >> shift] = i;
-                } 
+                        addr += (1 << shift);
+                } while (addr < end);
+                res = 1;
         } 
+        return res;
+}
+
+int __init compute_hash_shift(struct node *nodes, int numnodes)
+{
+        int shift = 20;
+
+        while (populate_memnodemap(nodes, numnodes, shift + 1) >= 0)
+                shift++;
+
+        printk(KERN_DEBUG "Using %d for the hash shift.\n",
+                shift);
+
+        if (populate_memnodemap(nodes, numnodes, shift) != 1) {
+                printk(KERN_INFO
+        "Your memory is not aligned you need to rebuild your kernel "
+        "with a bigger NODEMAPSIZE shift=%d\n",
+                        shift);
+                return -1;
+        }
         return shift;
 }
 
@@ -94,7 +113,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en
         start_pfn = start >> PAGE_SHIFT;
         end_pfn = end >> PAGE_SHIFT;
 
-        memory_present(nodeid, start_pfn, end_pfn);
         nodedata_phys = find_e820_area(start, end, pgdat_size); 
         if (nodedata_phys == -1L) 
                 panic("Cannot find memory pgdat in node %d\n", nodeid);
@@ -132,29 +150,14 @@ void __init setup_node_zones(int nodeid)
         unsigned long start_pfn, end_pfn; 
         unsigned long zones[MAX_NR_ZONES];
         unsigned long holes[MAX_NR_ZONES];
-        unsigned long dma_end_pfn;
 
-        memset(zones, 0, sizeof(unsigned long) * MAX_NR_ZONES); 
-        memset(holes, 0, sizeof(unsigned long) * MAX_NR_ZONES);
+        start_pfn = node_start_pfn(nodeid);
+        end_pfn = node_end_pfn(nodeid);
 
-        start_pfn = node_start_pfn(nodeid);
-        end_pfn = node_end_pfn(nodeid);
+        Dprintk(KERN_INFO "setting up node %d %lx-%lx\n",
+                nodeid, start_pfn, end_pfn);
 
-        Dprintk(KERN_INFO "setting up node %d %lx-%lx\n", nodeid, start_pfn, end_pfn);
-        
-        /* All nodes > 0 have a zero length zone DMA */ 
-        dma_end_pfn = __pa(MAX_DMA_ADDRESS) >> PAGE_SHIFT; 
-        if (start_pfn < dma_end_pfn) { 
-                zones[ZONE_DMA] = dma_end_pfn - start_pfn;
-                holes[ZONE_DMA] = e820_hole_size(start_pfn, dma_end_pfn);
-                zones[ZONE_NORMAL] = end_pfn - dma_end_pfn; 
-                holes[ZONE_NORMAL] = e820_hole_size(dma_end_pfn, end_pfn);
-
-        } else { 
-                zones[ZONE_NORMAL] = end_pfn - start_pfn; 
-                holes[ZONE_NORMAL] = e820_hole_size(start_pfn, end_pfn);
-        } 
-    
+        size_zones(zones, holes, start_pfn, end_pfn);
         free_area_init_node(nodeid, NODE_DATA(nodeid), zones,
                             start_pfn, holes);
 } 
@@ -171,7 +174,7 @@ void __init numa_init_array(void)
         for (i = 0; i < NR_CPUS; i++) {
                 if (cpu_to_node[i] != NUMA_NO_NODE)
                         continue;
-                cpu_to_node[i] = rr;
+                numa_set_node(i, rr);
                 rr = next_node(rr, node_online_map);
                 if (rr == MAX_NUMNODES)
                         rr = first_node(node_online_map);
@@ -205,8 +208,6 @@ static int numa_emulation(unsigned long start_pfn, unsigned long end_pfn)
                 if (i == numa_fake-1)
                         sz = (end_pfn<<PAGE_SHIFT) - nodes[i].start;
                 nodes[i].end = nodes[i].start + sz;
-                if (i != numa_fake-1)
-                        nodes[i].end--;
                 printk(KERN_INFO "Faking node %d at %016Lx-%016Lx (%LuMB)\n",
                        i,
                        nodes[i].start, nodes[i].end,
@@ -257,7 +258,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
         nodes_clear(node_online_map);
         node_set_online(0);
         for (i = 0; i < NR_CPUS; i++)
-                cpu_to_node[i] = 0;
+                numa_set_node(i, 0);
         node_to_cpumask[0] = cpumask_of_cpu(0);
         setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
 }
@@ -267,6 +268,12 @@ __cpuinit void numa_add_cpu(int cpu)
         set_bit(cpu, &node_to_cpumask[cpu_to_node(cpu)]);
 } 
 
+void __cpuinit numa_set_node(int cpu, int node)
+{
+        cpu_pda[cpu].nodenumber = node;
+        cpu_to_node[cpu] = node;
+}
+
 unsigned long __init numa_free_all_bootmem(void) 
 { 
         int i;
@@ -277,9 +284,26 @@ unsigned long __init numa_free_all_bootmem(void)
         return pages;
 } 
 
+#ifdef CONFIG_SPARSEMEM
+static void __init arch_sparse_init(void)
+{
+        int i;
+
+        for_each_online_node(i)
+                memory_present(i, node_start_pfn(i), node_end_pfn(i));
+
+        sparse_init();
+}
+#else
+#define arch_sparse_init() do {} while (0)
+#endif
+
 void __init paging_init(void)
 { 
         int i;
+
+        arch_sparse_init();
+
         for_each_online_node(i) {
                 setup_node_zones(i); 
         }
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
index 4b2e844c15a7..33340bd1e328 100644
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -71,8 +71,6 @@ static __init void cutoff_node(int i, unsigned long start, unsigned long end)
                         nd->start = nd->end;
         }
         if (nd->end > end) {
-                if (!(end & 0xfff))
-                        end--;
                 nd->end = end;
                 if (nd->start > nd->end)
                         nd->start = nd->end;
@@ -166,8 +164,6 @@ acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
                 if (nd->end < end)
                         nd->end = end;
         }
-        if (!(nd->end & 0xfff))
-                nd->end--;
         printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
                nd->start, nd->end);
 }
@@ -203,7 +199,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
                 if (cpu_to_node[i] == NUMA_NO_NODE)
                         continue;
                 if (!node_isset(cpu_to_node[i], nodes_parsed))
-                        cpu_to_node[i] = NUMA_NO_NODE; 
+                        numa_set_node(i, NUMA_NO_NODE);
         }
         numa_init_array();
         return 0;