Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

149 files changed, 3412 insertions, 1036 deletions

diff --git a/Documentation/cpu-freq/cpufreq-stats.txt b/Documentation/cpu-freq/cpufreq-stats.txt
new file mode 100644
index 00000000000..e2d1e760b4b
--- /dev/null
+++ b/Documentation/cpu-freq/cpufreq-stats.txt
@@ -0,0 +1,128 @@
+
+     CPU frequency and voltage scaling statictics in the Linux(TM) kernel
+
+
+             L i n u x    c p u f r e q - s t a t s   d r i v e r
+
+                       - information for users -
+
+
+             Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+
+Contents
+1. Introduction
+2. Statistics Provided (with example)
+3. Configuring cpufreq-stats
+
+
+1. Introduction
+
+cpufreq-stats is a driver that provices CPU frequency statistics for each CPU.
+This statistics is provided in /sysfs as a bunch of read_only interfaces. This
+interface (when configured) will appear in a seperate directory under cpufreq
+in /sysfs (<sysfs root>/devices/system/cpu/cpuX/cpufreq/stats/) for each CPU.
+Various statistics will form read_only files under this directory.
+
+This driver is designed to be independent of any particular cpufreq_driver
+that may be running on your CPU. So, it will work with any cpufreq_driver.
+
+
+2. Statistics Provided (with example)
+
+cpufreq stats provides following statistics (explained in detail below).
+-  time_in_state
+-  total_trans
+-  trans_table
+
+All the statistics will be from the time the stats driver has been inserted 
+to the time when a read of a particular statistic is done. Obviously, stats 
+driver will not have any information about the the frequcny transitions before
+the stats driver insertion.
+
+--------------------------------------------------------------------------------
+<mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # ls -l
+total 0
+drwxr-xr-x  2 root root    0 May 14 16:06 .
+drwxr-xr-x  3 root root    0 May 14 15:58 ..
+-r--r--r--  1 root root 4096 May 14 16:06 time_in_state
+-r--r--r--  1 root root 4096 May 14 16:06 total_trans
+-r--r--r--  1 root root 4096 May 14 16:06 trans_table
+--------------------------------------------------------------------------------
+
+-  time_in_state
+This gives the amount of time spent in each of the frequencies supported by
+this CPU. The cat output will have "<frequency> <time>" pair in each line, which
+will mean this CPU spent <time> usertime units of time at <frequency>. Output
+will have one line for each of the supported freuencies. usertime units here 
+is 10mS (similar to other time exported in /proc).
+
+--------------------------------------------------------------------------------
+<mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat time_in_state 
+3600000 2089
+3400000 136
+3200000 34
+3000000 67
+2800000 172488
+--------------------------------------------------------------------------------
+
+
+-  total_trans
+This gives the total number of frequency transitions on this CPU. The cat 
+output will have a single count which is the total number of frequency
+transitions.
+
+--------------------------------------------------------------------------------
+<mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat total_trans
+20
+--------------------------------------------------------------------------------
+
+-  trans_table
+This will give a fine grained information about all the CPU frequency
+transitions. The cat output here is a two dimensional matrix, where an entry
+<i,j> (row i, column j) represents the count of number of transitions from 
+Freq_i to Freq_j. Freq_i is in descending order with increasing rows and 
+Freq_j is in descending order with increasing columns. The output here also 
+contains the actual freq values for each row and column for better readability.
+
+--------------------------------------------------------------------------------
+<mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat trans_table
+   From  :    To
+         :   3600000   3400000   3200000   3000000   2800000 
+  3600000:         0         5         0         0         0 
+  3400000:         4         0         2         0         0 
+  3200000:         0         1         0         2         0 
+  3000000:         0         0         1         0         3 
+  2800000:         0         0         0         2         0 
+--------------------------------------------------------------------------------
+
+
+3. Configuring cpufreq-stats
+
+To configure cpufreq-stats in your kernel
+Config Main Menu
+	Power management options (ACPI, APM)  --->
+		CPU Frequency scaling  --->
+			[*] CPU Frequency scaling
+			<*>   CPU frequency translation statistics 
+			[*]     CPU frequency translation statistics details
+
+
+"CPU Frequency scaling" (CONFIG_CPU_FREQ) should be enabled to configure
+cpufreq-stats.
+
+"CPU frequency translation statistics" (CONFIG_CPU_FREQ_STAT) provides the
+basic statistics which includes time_in_state and total_trans.
+
+"CPU frequency translation statistics details" (CONFIG_CPU_FREQ_STAT_DETAILS)
+provides fine grained cpufreq stats by trans_table. The reason for having a
+seperate config option for trans_table is:
+- trans_table goes against the traditional /sysfs rule of one value per
+  interface. It provides a whole bunch of value in a 2 dimensional matrix
+  form.
+
+Once these two options are enabled and your CPU supports cpufrequency, you
+will be able to see the CPU frequency statistics in /sysfs.
+
+
+
+
diff --git a/MAINTAINERS b/MAINTAINERS
index 5b8483334de..97bc927d2c5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1023,8 +1023,8 @@ W:	http://www.ia64-linux.org/
 S:	Maintained
 
 SN-IA64 (Itanium) SUB-PLATFORM
-P:	Jesse Barnes
-M:	jbarnes@sgi.com
+P:	Greg Edwards
+M:	edwardsg@sgi.com
 L:	linux-altix@sgi.com
 L:	linux-ia64@vger.kernel.org
 W:	http://www.sgi.com/altix
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index 134aec1c6d1..b5f83e9f04d 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -54,7 +54,7 @@ asmlinkage void ret_from_fork(void);
 void default_idle(void)
 {
 	while(1) {
-		if (need_resched()) {
+		if (!need_resched()) {
 			local_irq_enable();
 			__asm__("sleep");
 			local_irq_disable();
diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig
index f25ffd74235..0f1eb507233 100644
--- a/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -23,7 +23,7 @@ config X86_ACPI_CPUFREQ
 	  If in doubt, say N.
 
 config ELAN_CPUFREQ
-	tristate "AMD Elan"
+	tristate "AMD Elan SC400 and SC410"
 	select CPU_FREQ_TABLE
 	depends on X86_ELAN
 	---help---
@@ -38,6 +38,18 @@ config ELAN_CPUFREQ
 
 	  If in doubt, say N.
 
+config SC520_CPUFREQ
+	tristate "AMD Elan SC520"
+	select CPU_FREQ_TABLE
+	depends on X86_ELAN
+	---help---
+	  This adds the CPUFreq driver for AMD Elan SC520 processor.
+
+	  For details, take a look at <file:Documentation/cpu-freq/>.
+
+	  If in doubt, say N.
+
+
 config X86_POWERNOW_K6
 	tristate "AMD Mobile K6-2/K6-3 PowerNow!"
 	select CPU_FREQ_TABLE
diff --git a/arch/i386/kernel/cpu/cpufreq/Makefile b/arch/i386/kernel/cpu/cpufreq/Makefile
index a922e97aeed..2e894f1c891 100644
--- a/arch/i386/kernel/cpu/cpufreq/Makefile
+++ b/arch/i386/kernel/cpu/cpufreq/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_X86_POWERNOW_K7)		+= powernow-k7.o
 obj-$(CONFIG_X86_POWERNOW_K8)		+= powernow-k8.o
 obj-$(CONFIG_X86_LONGHAUL)		+= longhaul.o
 obj-$(CONFIG_ELAN_CPUFREQ)		+= elanfreq.o
+obj-$(CONFIG_SC520_CPUFREQ)		+= sc520_freq.o
 obj-$(CONFIG_X86_LONGRUN)		+= longrun.o  
 obj-$(CONFIG_X86_GX_SUSPMOD)		+= gx-suspmod.o
 obj-$(CONFIG_X86_SPEEDSTEP_ICH)		+= speedstep-ich.o
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index ab0f9f5aac1..04e3563da4f 100644
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -29,6 +29,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/pci.h>
 
 #include <asm/msr.h>
 #include <asm/timex.h>
@@ -119,7 +120,13 @@ static int longhaul_get_cpu_mult(void)
 static void do_powersaver(union msr_longhaul *longhaul,
 			unsigned int clock_ratio_index)
 {
+	struct pci_dev *dev;
+	unsigned long flags;
+	unsigned int tmp_mask;
 	int version;
+	int i;
+	u16 pci_cmd;
+	u16 cmd_state[64];
 
 	switch (cpu_model) {
 	case CPU_EZRA_T:
@@ -137,17 +144,58 @@ static void do_powersaver(union msr_longhaul *longhaul,
 	longhaul->bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4;
 	longhaul->bits.EnableSoftBusRatio = 1;
 	longhaul->bits.RevisionKey = 0;
-	local_irq_disable();
-	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
+
+	preempt_disable();
+	local_irq_save(flags);
+
+	/*
+	 * get current pci bus master state for all devices
+	 * and clear bus master bit
+	 */
+	dev = NULL;
+	i = 0;
+	do {
+		dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+		if (dev != NULL) {
+			pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
+			cmd_state[i++] = pci_cmd;
+			pci_cmd &= ~PCI_COMMAND_MASTER;
+			pci_write_config_word(dev, PCI_COMMAND, pci_cmd);
+		}
+	} while (dev != NULL);
+
+	tmp_mask=inb(0x21);	/* works on C3. save mask. */
+	outb(0xFE,0x21);	/* TMR0 only */
+	outb(0xFF,0x80);	/* delay */
+
 	local_irq_enable();
+
+	__hlt();
+	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
 	__hlt();
 
+	local_irq_disable();
+
+	outb(tmp_mask,0x21);	/* restore mask */
+
+	/* restore pci bus master state for all devices */
+	dev = NULL;
+	i = 0;
+	do {
+		dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
+		if (dev != NULL) {
+			pci_cmd = cmd_state[i++];
+			pci_write_config_byte(dev, PCI_COMMAND, pci_cmd);
+		}
+	} while (dev != NULL);
+	local_irq_restore(flags);
+	preempt_enable();
+
+	/* disable bus ratio bit */
 	rdmsrl(MSR_VIA_LONGHAUL, longhaul->val);
 	longhaul->bits.EnableSoftBusRatio = 0;
 	longhaul->bits.RevisionKey = version;
-	local_irq_disable();
 	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
-	local_irq_enable();
 }
 
 /**
@@ -578,7 +626,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 		longhaul_setup_voltagescaling();
 
 	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cpuinfo.transition_latency = 200000;	/* nsec */
 	policy->cur = calc_speed(longhaul_get_cpu_mult());
 
 	ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table);
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index 913f652623d..5c530064eb7 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -23,6 +23,7 @@
 #include <linux/dmi.h>
 
 #include <asm/msr.h>
+#include <asm/timer.h>
 #include <asm/timex.h>
 #include <asm/io.h>
 #include <asm/system.h>
@@ -586,13 +587,17 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy)
 
 	rdmsrl (MSR_K7_FID_VID_STATUS, fidvidstatus.val);
 
-	/* A K7 with powernow technology is set to max frequency by BIOS */
-	fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.MFID];
+	/* recalibrate cpu_khz */
+	result = recalibrate_cpu_khz();
+	if (result)
+		return result;
+
+	fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.CFID];
 	if (!fsb) {
 		printk(KERN_WARNING PFX "can not determine bus frequency\n");
 		return -EINVAL;
 	}
-	dprintk("FSB: %3d.%03d MHz\n", fsb/1000, fsb%1000);
+	dprintk("FSB: %3dMHz\n", fsb/1000);
 
 	if (dmi_check_system(powernow_dmi_table) || acpi_force) {
 		printk (KERN_INFO PFX "PSB/PST known to be broken.  Trying ACPI instead\n");
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index a65ff7e32e5..10cc096c0ad 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -4,7 +4,7 @@
  *  GNU general public license version 2. See "COPYING" or
  *  http://www.gnu.org/licenses/gpl.html
  *
- *  Support : paul.devriendt@amd.com
+ *  Support : mark.langsdorf@amd.com
  *
  *  Based on the powernow-k7.c module written by Dave Jones.
  *  (C) 2003 Dave Jones <davej@codemonkey.org.uk> on behalf of SuSE Labs
@@ -15,12 +15,13 @@
  *
  *  Valuable input gratefully received from Dave Jones, Pavel Machek,
  *  Dominik Brodowski, and others.
+ *  Originally developed by Paul Devriendt.
  *  Processor information obtained from Chapter 9 (Power and Thermal Management)
  *  of the "BIOS and Kernel Developer's Guide for the AMD Athlon 64 and AMD
  *  Opteron Processors" available for download from www.amd.com
  *
  *  Tables for specific CPUs can be infrerred from
- *	http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf
+ *     http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf
  */
 
 #include <linux/kernel.h>
@@ -30,6 +31,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/cpumask.h>
 
 #include <asm/msr.h>
 #include <asm/io.h>
@@ -42,7 +44,7 @@
 
 #define PFX "powernow-k8: "
 #define BFX PFX "BIOS error: "
-#define VERSION "version 1.00.09e"
+#define VERSION "version 1.40.2"
 #include "powernow-k8.h"
 
 /* serialize freq changes  */
@@ -50,6 +52,10 @@ static DECLARE_MUTEX(fidvid_sem);
 
 static struct powernow_k8_data *powernow_data[NR_CPUS];
 
+#ifndef CONFIG_SMP
+static cpumask_t cpu_core_map[1];
+#endif
+
 /* Return a frequency in MHz, given an input fid */
 static u32 find_freq_from_fid(u32 fid)
 {
@@ -274,11 +280,18 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid
 {
 	u32 rvosteps = data->rvo;
 	u32 savefid = data->currfid;
+	u32 maxvid, lo;
 
 	dprintk("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, reqvid 0x%x, rvo 0x%x\n",
 		smp_processor_id(),
 		data->currfid, data->currvid, reqvid, data->rvo);
 
+	rdmsr(MSR_FIDVID_STATUS, lo, maxvid);
+	maxvid = 0x1f & (maxvid >> 16);
+	dprintk("ph1 maxvid=0x%x\n", maxvid);
+	if (reqvid < maxvid) /* lower numbers are higher voltages */
+		reqvid = maxvid;
+
 	while (data->currvid > reqvid) {
 		dprintk("ph1: curr 0x%x, req vid 0x%x\n",
 			data->currvid, reqvid);
@@ -286,8 +299,8 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid
 			return 1;
 	}
 
-	while ((rvosteps > 0)  && ((data->rvo + data->currvid) > reqvid)) {
-		if (data->currvid == 0) {
+	while ((rvosteps > 0) && ((data->rvo + data->currvid) > reqvid)) {
+		if (data->currvid == maxvid) {
 			rvosteps = 0;
 		} else {
 			dprintk("ph1: changing vid for rvo, req 0x%x\n",
@@ -671,7 +684,7 @@ static int find_psb_table(struct powernow_k8_data *data)
 	 * BIOS and Kernel Developer's Guide, which is available on
 	 * www.amd.com
 	 */
-	printk(KERN_ERR PFX "BIOS error - no PSB\n");
+	printk(KERN_INFO PFX "BIOS error - no PSB or ACPI _PSS objects\n");
 	return -ENODEV;
 }
 
@@ -695,7 +708,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 	struct cpufreq_frequency_table *powernow_table;
 
 	if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) {
-		dprintk("register performance failed\n");
+		dprintk("register performance failed: bad ACPI data\n");
 		return -EIO;
 	}
 
@@ -746,22 +759,23 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 			continue;
 		}
 
- 		if (fid < HI_FID_TABLE_BOTTOM) {
- 			if (cntlofreq) {
- 				/* if both entries are the same, ignore this
- 				 * one... 
- 				 */
- 				if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) ||
- 				    (powernow_table[i].index != powernow_table[cntlofreq].index)) {
- 					printk(KERN_ERR PFX "Too many lo freq table entries\n");
- 					goto err_out_mem;
- 				}
-				
- 				dprintk("double low frequency table entry, ignoring it.\n");
- 				powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
- 				continue;
- 			} else
- 				cntlofreq = i;
+		/* verify only 1 entry from the lo frequency table */
+		if (fid < HI_FID_TABLE_BOTTOM) {
+			if (cntlofreq) {
+				/* if both entries are the same, ignore this
+				 * one... 
+				 */
+				if ((powernow_table[i].frequency != powernow_table[cntlofreq].frequency) ||
+				    (powernow_table[i].index != powernow_table[cntlofreq].index)) {
+					printk(KERN_ERR PFX "Too many lo freq table entries\n");
+					goto err_out_mem;
+				}
+
+				dprintk("double low frequency table entry, ignoring it.\n");
+				powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+				continue;
+			} else
+				cntlofreq = i;
 		}
 
 		if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) {
@@ -816,7 +830,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
 {
 	u32 fid;
 	u32 vid;
-	int res;
+	int res, i;
 	struct cpufreq_freqs freqs;
 
 	dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
@@ -841,7 +855,8 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
 	}
 
 	if ((fid < HI_FID_TABLE_BOTTOM) && (data->currfid < HI_FID_TABLE_BOTTOM)) {
-		printk("ignoring illegal change in lo freq table-%x to 0x%x\n",
+		printk(KERN_ERR PFX
+		       "ignoring illegal change in lo freq table-%x to 0x%x\n",
 		       data->currfid, fid);
 		return 1;
 	}
@@ -850,18 +865,20 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
 		smp_processor_id(), fid, vid);
 
 	freqs.cpu = data->cpu;
-
 	freqs.old = find_khz_freq_from_fid(data->currfid);
 	freqs.new = find_khz_freq_from_fid(fid);
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+	for_each_cpu_mask(i, cpu_core_map[data->cpu]) {
+		freqs.cpu = i;
+		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+	}
 
-	down(&fidvid_sem);
 	res = transition_fid_vid(data, fid, vid);
-	up(&fidvid_sem);
 
 	freqs.new = find_khz_freq_from_fid(data->currfid);
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
+	for_each_cpu_mask(i, cpu_core_map[data->cpu]) {
+		freqs.cpu = i;
+		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        }
 	return res;
 }
 
@@ -874,6 +891,7 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
 	u32 checkvid = data->currvid;
 	unsigned int newstate;
 	int ret = -EIO;
+	int i;
 
 	/* only run on specific CPU from here on */
 	oldmask = current->cpus_allowed;
@@ -902,22 +920,41 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
 		data->currfid, data->currvid);
 
 	if ((checkvid != data->currvid) || (checkfid != data->currfid)) {
-		printk(KERN_ERR PFX
-		       "error - out of sync, fid 0x%x 0x%x, vid 0x%x 0x%x\n",
-		       checkfid, data->currfid, checkvid, data->currvid);
+		printk(KERN_INFO PFX
+			"error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n",
+			checkfid, data->currfid, checkvid, data->currvid);
 	}
 
 	if (cpufreq_frequency_table_target(pol, data->powernow_table, targfreq, relation, &newstate))
 		goto err_out;
 
+	down(&fidvid_sem);
+
+	for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
+		/* make sure the sibling is initialized */
+		if (!powernow_data[i]) {
+                        ret = 0;
+                        up(&fidvid_sem);
+                        goto err_out;
+                }
+	}
+
 	powernow_k8_acpi_pst_values(data, newstate);
 
 	if (transition_frequency(data, newstate)) {
 		printk(KERN_ERR PFX "transition frequency failed\n");
 		ret = 1;
+		up(&fidvid_sem);
 		goto err_out;
 	}
 
+	/* Update all the fid/vids of our siblings */
+	for_each_cpu_mask(i, cpu_core_map[pol->cpu]) {
+		powernow_data[i]->currvid = data->currvid;
+		powernow_data[i]->currfid = data->currfid;
+	}	
+	up(&fidvid_sem);
+
 	pol->cur = find_khz_freq_from_fid(data->currfid);
 	ret = 0;
 
@@ -962,7 +999,7 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
 		 */
 
 		if ((num_online_cpus() != 1) || (num_possible_cpus() != 1)) {
-			printk(KERN_INFO PFX "MP systems not supported by PSB BIOS structure\n");
+			printk(KERN_ERR PFX "MP systems not supported by PSB BIOS structure\n");
 			kfree(data);
 			return -ENODEV;
 		}
@@ -1003,6 +1040,7 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
 	schedule();
 
 	pol->governor = CPUFREQ_DEFAULT_GOVERNOR;
+	pol->cpus = cpu_core_map[pol->cpu];
 
 	/* Take a crude guess here. 
 	 * That guess was in microseconds, so multiply with 1000 */
@@ -1069,7 +1107,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
 		return 0;
 	}
 	preempt_disable();
-
+	
 	if (query_current_values_with_pending_wait(data))
 		goto out;
 
@@ -1127,9 +1165,10 @@ static void __exit powernowk8_exit(void)
 	cpufreq_unregister_driver(&cpufreq_amd64_driver);
 }
 
-MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com>");
+MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and Mark Langsdorf <mark.langsdorf@amd.com.");
 MODULE_DESCRIPTION("AMD Athlon 64 and Opteron processor frequency driver.");
 MODULE_LICENSE("GPL");
 
 late_initcall(powernowk8_init);
 module_exit(powernowk8_exit);
+
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
index 63ebc8470f5..9ed5bf221cb 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
@@ -174,3 +174,18 @@ static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvi
 static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid);
 
 static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index);
+
+#ifndef for_each_cpu_mask
+#define for_each_cpu_mask(i,mask) for (i=0;i<1;i++)
+#endif
+                                                                                
+#ifdef CONFIG_SMP
+static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[])
+{
+}
+#else
+static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[])
+{
+	cpu_set(0, cpu_sharedcore_mask[0]);
+}
+#endif
diff --git a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
new file mode 100644
index 00000000000..ef457d50f4a
--- /dev/null
+++ b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
@@ -0,0 +1,186 @@
+/*
+ *	sc520_freq.c: cpufreq driver for the AMD Elan sc520
+ *
+ *	Copyright (C) 2005 Sean Young <sean@mess.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.
+ *
+ *	Based on elanfreq.c
+ *
+ *	2005-03-30: - initial revision
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <linux/delay.h>
+#include <linux/cpufreq.h>
+
+#include <asm/msr.h>
+#include <asm/timex.h>
+#include <asm/io.h>
+
+#define MMCR_BASE	0xfffef000	/* The default base address */
+#define OFFS_CPUCTL	0x2   /* CPU Control Register */
+
+static __u8 __iomem *cpuctl;
+
+#define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "sc520_freq", msg)
+
+static struct cpufreq_frequency_table sc520_freq_table[] = {
+	{0x01,	100000},
+	{0x02,	133000},
+	{0,	CPUFREQ_TABLE_END},
+};
+
+static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
+{
+	u8 clockspeed_reg = *cpuctl;
+
+	switch (clockspeed_reg & 0x03) {
+	default:
+		printk(KERN_ERR "sc520_freq: error: cpuctl register has unexpected value %02x\n", clockspeed_reg);
+	case 0x01:
+		return 100000;
+	case 0x02:
+		return 133000;
+	}
+}
+
+static void sc520_freq_set_cpu_state (unsigned int state)
+{
+
+	struct cpufreq_freqs	freqs;
+	u8 clockspeed_reg;
+
+	freqs.old = sc520_freq_get_cpu_frequency(0);
+	freqs.new = sc520_freq_table[state].frequency;
+	freqs.cpu = 0; /* AMD Elan is UP */
+
+	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+	dprintk("attempting to set frequency to %i kHz\n",
+			sc520_freq_table[state].frequency);
+
+	local_irq_disable();
+
+	clockspeed_reg = *cpuctl & ~0x03;
+	*cpuctl = clockspeed_reg | sc520_freq_table[state].index;
+
+	local_irq_enable();
+
+	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+};
+
+static int sc520_freq_verify (struct cpufreq_policy *policy)
+{
+	return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]);
+}
+
+static int sc520_freq_target (struct cpufreq_policy *policy,
+			    unsigned int target_freq,
+			    unsigned int relation)
+{
+	unsigned int newstate = 0;
+
+	if (cpufreq_frequency_table_target(policy, sc520_freq_table, target_freq, relation, &newstate))
+		return -EINVAL;
+
+	sc520_freq_set_cpu_state(newstate);
+
+	return 0;
+}
+
+
+/*
+ *	Module init and exit code
+ */
+
+static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
+{
+	struct cpuinfo_x86 *c = cpu_data;
+	int result;
+
+	/* capability check */
+	if (c->x86_vendor != X86_VENDOR_AMD ||
+	    c->x86 != 4 || c->x86_model != 9)
+		return -ENODEV;
+
+	/* cpuinfo and default policy values */
+	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
+	policy->cur = sc520_freq_get_cpu_frequency(0);
+
+	result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table);
+	if (result)
+		return (result);
+
+	cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu);
+
+	return 0;
+}
+
+
+static int sc520_freq_cpu_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
+
+static struct freq_attr* sc520_freq_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+};
+
+
+static struct cpufreq_driver sc520_freq_driver = {
+	.get	= sc520_freq_get_cpu_frequency,
+	.verify	= sc520_freq_verify,
+	.target	= sc520_freq_target,
+	.init	= sc520_freq_cpu_init,
+	.exit	= sc520_freq_cpu_exit,
+	.name	= "sc520_freq",
+	.owner	= THIS_MODULE,
+	.attr	= sc520_freq_attr,
+};
+
+
+static int __init sc520_freq_init(void)
+{
+	struct cpuinfo_x86 *c = cpu_data;
+
+	/* Test if we have the right hardware */
+	if(c->x86_vendor != X86_VENDOR_AMD ||
+				c->x86 != 4 || c->x86_model != 9) {
+		dprintk("no Elan SC520 processor found!\n");
+		return -ENODEV;
+	}
+	cpuctl = ioremap((unsigned long)(MMCR_BASE + OFFS_CPUCTL), 1);
+	if(!cpuctl) {
+		printk(KERN_ERR "sc520_freq: error: failed to remap memory\n");
+		return -ENOMEM;
+	}
+
+	return cpufreq_register_driver(&sc520_freq_driver);
+}
+
+
+static void __exit sc520_freq_exit(void)
+{
+	cpufreq_unregister_driver(&sc520_freq_driver);
+	iounmap(cpuctl);
+}
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Sean Young <sean@mess.org>");
+MODULE_DESCRIPTION("cpufreq driver for AMD's Elan sc520 CPU");
+
+module_init(sc520_freq_init);
+module_exit(sc520_freq_exit);
+
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 07d5612dc00..7dcbf70fc16 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -54,6 +54,8 @@ enum {
 	CPU_DOTHAN_A1,
 	CPU_DOTHAN_A2,
 	CPU_DOTHAN_B0,
+	CPU_MP4HT_D0,
+	CPU_MP4HT_E0,
 };
 
 static const struct cpu_id cpu_ids[] = {
@@ -61,6 +63,8 @@ static const struct cpu_id cpu_ids[] = {
 	[CPU_DOTHAN_A1]	= { 6, 13, 1 },
 	[CPU_DOTHAN_A2]	= { 6, 13, 2 },
 	[CPU_DOTHAN_B0]	= { 6, 13, 6 },
+	[CPU_MP4HT_D0]	= {15,  3, 4 },
+	[CPU_MP4HT_E0]	= {15,  4, 1 },
 };
 #define N_IDS	(sizeof(cpu_ids)/sizeof(cpu_ids[0]))
 
@@ -226,6 +230,8 @@ static struct cpu_model models[] =
 	{ &cpu_ids[CPU_DOTHAN_A1], NULL, 0, NULL },
 	{ &cpu_ids[CPU_DOTHAN_A2], NULL, 0, NULL },
 	{ &cpu_ids[CPU_DOTHAN_B0], NULL, 0, NULL },
+	{ &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL },
+	{ &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL },
 
 	{ NULL, }
 };
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
index 8ba430a9c3a..d368b3f5fce 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
@@ -336,7 +336,7 @@ unsigned int speedstep_get_freqs(unsigned int processor,
 	if (!prev_speed)
 		return -EIO;
 
-	dprintk("previous seped is %u\n", prev_speed);
+	dprintk("previous speed is %u\n", prev_speed);
 	
 	local_irq_save(flags);
 
@@ -348,7 +348,7 @@ unsigned int speedstep_get_freqs(unsigned int processor,
 		goto out;
 	}
 
-	dprintk("low seped is %u\n", *low_speed);
+	dprintk("low speed is %u\n", *low_speed);
 
 	/* switch to high state */
 	set_state(SPEEDSTEP_HIGH);
@@ -358,7 +358,7 @@ unsigned int speedstep_get_freqs(unsigned int processor,
 		goto out;
 	}
 
-	dprintk("high seped is %u\n", *high_speed);
+	dprintk("high speed is %u\n", *high_speed);
 
 	if (*low_speed == *high_speed) {
 		ret = -ENODEV;
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
index 79440b3f087..b25fb6b635a 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
@@ -357,6 +357,9 @@ static int __init speedstep_init(void)
 	case SPEEDSTEP_PROCESSOR_PIII_C:
 	case SPEEDSTEP_PROCESSOR_PIII_C_EARLY:
 		break;
+	case SPEEDSTEP_PROCESSOR_P4M:
+		printk(KERN_INFO "speedstep-smi: you're trying to use this cpufreq driver on a Pentium 4-based CPU. Most likely it will not work.\n");
+		break;
 	default:
 		speedstep_processor = 0;
 	}
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index aeb5b4ef8c8..a710dc4eb20 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -118,7 +118,7 @@ struct _cpuid4_info {
 };
 
 #define MAX_CACHE_LEAVES		4
-static unsigned short __devinitdata	num_cache_leaves;
+static unsigned short			num_cache_leaves;
 
 static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
 {
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index 945ec73163c..2bfbddebdbf 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -1502,11 +1502,13 @@ void __init setup_arch(char **cmdline_p)
 	if (efi_enabled)
 		efi_map_memmap();
 
+#ifdef CONFIG_ACPI_BOOT
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
 	 */
 	acpi_boot_table_init();
 	acpi_boot_init();
+#endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	if (smp_found_config)
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 35bfe138cb1..bc1bb6919e6 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -1074,8 +1074,10 @@ static void __init smp_boot_cpus(unsigned int max_cpus)
 			cpu_set(cpu, cpu_sibling_map[cpu]);
 		}
 
-		if (siblings != smp_num_siblings)
+		if (siblings != smp_num_siblings) {
 			printk(KERN_WARNING "WARNING: %d siblings found for CPU%d, should be %d\n", siblings, cpu, smp_num_siblings);
+			smp_num_siblings = siblings;
+		}
 
 		if (c->x86_num_cores > 1) {
 			for (i = 0; i < NR_CPUS; i++) {
diff --git a/arch/i386/kernel/timers/common.c b/arch/i386/kernel/timers/common.c
index f7f90005e22..8e201219f52 100644
--- a/arch/i386/kernel/timers/common.c
+++ b/arch/i386/kernel/timers/common.c
@@ -6,6 +6,7 @@
 #include <linux/timex.h>
 #include <linux/errno.h>
 #include <linux/jiffies.h>
+#include <linux/module.h>
 
 #include <asm/io.h>
 #include <asm/timer.h>
@@ -24,7 +25,7 @@
 
 #define CALIBRATE_TIME	(5 * 1000020/HZ)
 
-unsigned long __init calibrate_tsc(void)
+unsigned long calibrate_tsc(void)
 {
 	mach_prepare_counter();
 
@@ -139,7 +140,7 @@ bad_calibration:
 #endif
 
 /* calculate cpu_khz */
-void __init init_cpu_khz(void)
+void init_cpu_khz(void)
 {
 	if (cpu_has_tsc) {
 		unsigned long tsc_quotient = calibrate_tsc();
@@ -158,3 +159,4 @@ void __init init_cpu_khz(void)
 		}
 	}
 }
+
diff --git a/arch/i386/kernel/timers/timer_tsc.c b/arch/i386/kernel/timers/timer_tsc.c
index 7926d967be0..180444d8782 100644
--- a/arch/i386/kernel/timers/timer_tsc.c
+++ b/arch/i386/kernel/timers/timer_tsc.c
@@ -320,6 +320,26 @@ core_initcall(cpufreq_tsc);
 static inline void cpufreq_delayed_get(void) { return; }
 #endif 
 
+int recalibrate_cpu_khz(void)
+{
+#ifndef CONFIG_SMP
+	unsigned long cpu_khz_old = cpu_khz;
+
+	if (cpu_has_tsc) {
+		init_cpu_khz();
+		cpu_data[0].loops_per_jiffy =
+		    cpufreq_scale(cpu_data[0].loops_per_jiffy,
+			          cpu_khz_old,
+				  cpu_khz);
+		return 0;
+	} else
+		return -ENODEV;
+#else
+	return -ENODEV;
+#endif
+}
+EXPORT_SYMBOL(recalibrate_cpu_khz);
+
 static void mark_offset_tsc(void)
 {
 	unsigned long lost,delay;
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 81c45d44739..d99316c9be2 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1182,7 +1182,7 @@ ENTRY(notify_resume_user)
 	;;
 (pNonSys) mov out2=0				// out2==0 => not a syscall
 	.fframe 16
-	.spillpsp ar.unat, 16			// (note that offset is relative to psp+0x10!)
+	.spillsp ar.unat, 16
 	st8 [sp]=r9,-16				// allocate space for ar.unat and save it
 	st8 [out1]=loc1,-8			// save ar.pfs, out1=&sigscratch
 	.body
@@ -1208,7 +1208,7 @@ GLOBAL_ENTRY(sys_rt_sigsuspend)
 	adds out2=8,sp				// out2=&sigscratch->ar_pfs
 	;;
 	.fframe 16
-	.spillpsp ar.unat, 16			// (note that offset is relative to psp+0x10!)
+	.spillsp ar.unat, 16
 	st8 [sp]=r9,-16				// allocate space for ar.unat and save it
 	st8 [out2]=loc1,-8			// save ar.pfs, out2=&sigscratch
 	.body
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 4d6c7b8f667..2c75741dcc6 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1390,8 +1390,7 @@ ia64_mca_init(void)
 	register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction);
 
 #ifdef CONFIG_ACPI
-	/* Setup the CPEI/P vector and handler */
-	cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI);
+	/* Setup the CPEI/P handler */
 	register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
 #endif
 
@@ -1436,6 +1435,7 @@ ia64_mca_late_init(void)
 
 #ifdef CONFIG_ACPI
 	/* Setup the CPEI/P vector and handler */
+	cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI);
 	init_timer(&cpe_poll_timer);
 	cpe_poll_timer.function = ia64_mca_cpe_poll;
 
diff --git a/arch/ia64/kernel/minstate.h b/arch/ia64/kernel/minstate.h
index 1dbc7b2497c..f6d8a010d99 100644
--- a/arch/ia64/kernel/minstate.h
+++ b/arch/ia64/kernel/minstate.h
@@ -41,7 +41,7 @@
 (pKStk) addl r3=THIS_CPU(ia64_mca_data),r3;;							\
 (pKStk) ld8 r3 = [r3];;										\
 (pKStk) addl r3=IA64_MCA_CPU_INIT_STACK_OFFSET,r3;;						\
-(pKStk) addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r3;						\
+(pKStk) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r3;						\
 (pUStk)	mov ar.rsc=0;		/* set enforced lazy mode, pl 0, little-endian, loadrs=0 */	\
 (pUStk)	addl r22=IA64_RBS_OFFSET,r1;		/* compute base of register backing store */	\
 	;;											\
@@ -50,7 +50,6 @@
 (pUStk)	mov r23=ar.bspstore;				/* save ar.bspstore */			\
 (pUStk)	dep r22=-1,r22,61,3;			/* compute kernel virtual addr of RBS */	\
 	;;											\
-(pKStk) addl r1=-IA64_PT_REGS_SIZE,r1;		/* if in kernel mode, use sp (r12) */		\
 (pUStk)	mov ar.bspstore=r22;			/* switch to kernel RBS */			\
 	;;											\
 (pUStk)	mov r18=ar.bsp;										\
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 71c101601e3..6407bff6bfd 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -11,7 +11,7 @@
  * Version Perfmon-2.x is a rewrite of perfmon-1.x
  * by Stephane Eranian, Hewlett Packard Co.
  *
- * Copyright (C) 1999-2003, 2005  Hewlett Packard Co
+ * Copyright (C) 1999-2005  Hewlett Packard Co
  *               Stephane Eranian <eranian@hpl.hp.com>
  *               David Mosberger-Tang <davidm@hpl.hp.com>
  *
@@ -497,6 +497,9 @@ typedef struct {
 static pfm_stats_t		pfm_stats[NR_CPUS];
 static pfm_session_t		pfm_sessions;	/* global sessions information */
 
+static spinlock_t pfm_alt_install_check = SPIN_LOCK_UNLOCKED;
+static pfm_intr_handler_desc_t  *pfm_alt_intr_handler;
+
 static struct proc_dir_entry 	*perfmon_dir;
 static pfm_uuid_t		pfm_null_uuid = {0,};
 
@@ -606,6 +609,7 @@ DEFINE_PER_CPU(unsigned long, pfm_syst_info);
 DEFINE_PER_CPU(struct task_struct *, pmu_owner);
 DEFINE_PER_CPU(pfm_context_t  *, pmu_ctx);
 DEFINE_PER_CPU(unsigned long, pmu_activation_number);
+EXPORT_PER_CPU_SYMBOL_GPL(pfm_syst_info);
 
 
 /* forward declaration */
@@ -1325,7 +1329,7 @@ pfm_reserve_session(struct task_struct *task, int is_syswide, unsigned int cpu)
 error_conflict:
 	DPRINT(("system wide not possible, conflicting session [%d] on CPU%d\n",
   		pfm_sessions.pfs_sys_session[cpu]->pid,
-		smp_processor_id()));
+		cpu));
 abort:
 	UNLOCK_PFS(flags);
 
@@ -5555,26 +5559,32 @@ pfm_interrupt_handler(int irq, void *arg, struct pt_regs *regs)
 	int ret;
 
 	this_cpu = get_cpu();
-	min      = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min;
-	max      = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max;
+	if (likely(!pfm_alt_intr_handler)) {
+		min = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min;
+		max = pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max;
 
-	start_cycles = ia64_get_itc();
+		start_cycles = ia64_get_itc();
 
-	ret = pfm_do_interrupt_handler(irq, arg, regs);
+		ret = pfm_do_interrupt_handler(irq, arg, regs);
 
-	total_cycles = ia64_get_itc();
+		total_cycles = ia64_get_itc();
 
-	/*
-	 * don't measure spurious interrupts
-	 */
-	if (likely(ret == 0)) {
-		total_cycles -= start_cycles;
+		/*
+		 * don't measure spurious interrupts
+		 */
+		if (likely(ret == 0)) {
+			total_cycles -= start_cycles;
 
-		if (total_cycles < min) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min = total_cycles;
-		if (total_cycles > max) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max = total_cycles;
+			if (total_cycles < min) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_min = total_cycles;
+			if (total_cycles > max) pfm_stats[this_cpu].pfm_ovfl_intr_cycles_max = total_cycles;
 
-		pfm_stats[this_cpu].pfm_ovfl_intr_cycles += total_cycles;
+			pfm_stats[this_cpu].pfm_ovfl_intr_cycles += total_cycles;
+		}
+	}
+	else {
+		(*pfm_alt_intr_handler->handler)(irq, arg, regs);
 	}
+
 	put_cpu_no_resched();
 	return IRQ_HANDLED;
 }
@@ -6425,6 +6435,141 @@ static struct irqaction perfmon_irqaction = {
 	.name    = "perfmon"
 };
 
+static void
+pfm_alt_save_pmu_state(void *data)
+{
+	struct pt_regs *regs;
+
+	regs = ia64_task_regs(current);
+
+	DPRINT(("called\n"));
+
+	/*
+	 * should not be necessary but
+	 * let's take not risk
+	 */
+	pfm_clear_psr_up();
+	pfm_clear_psr_pp();
+	ia64_psr(regs)->pp = 0;
+
+	/*
+	 * This call is required
+	 * May cause a spurious interrupt on some processors
+	 */
+	pfm_freeze_pmu();
+
+	ia64_srlz_d();
+}
+
+void
+pfm_alt_restore_pmu_state(void *data)
+{
+	struct pt_regs *regs;
+
+	regs = ia64_task_regs(current);
+
+	DPRINT(("called\n"));
+
+	/*
+	 * put PMU back in state expected
+	 * by perfmon
+	 */
+	pfm_clear_psr_up();
+	pfm_clear_psr_pp();
+	ia64_psr(regs)->pp = 0;
+
+	/*
+	 * perfmon runs with PMU unfrozen at all times
+	 */
+	pfm_unfreeze_pmu();
+
+	ia64_srlz_d();
+}
+
+int
+pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl)
+{
+	int ret, i;
+	int reserve_cpu;
+
+	/* some sanity checks */
+	if (hdl == NULL || hdl->handler == NULL) return -EINVAL;
+
+	/* do the easy test first */
+	if (pfm_alt_intr_handler) return -EBUSY;
+
+	/* one at a time in the install or remove, just fail the others */
+	if (!spin_trylock(&pfm_alt_install_check)) {
+		return -EBUSY;
+	}
+
+	/* reserve our session */
+	for_each_online_cpu(reserve_cpu) {
+		ret = pfm_reserve_session(NULL, 1, reserve_cpu);
+		if (ret) goto cleanup_reserve;
+	}
+
+	/* save the current system wide pmu states */
+	ret = on_each_cpu(pfm_alt_save_pmu_state, NULL, 0, 1);
+	if (ret) {
+		DPRINT(("on_each_cpu() failed: %d\n", ret));
+		goto cleanup_reserve;
+	}
+
+	/* officially change to the alternate interrupt handler */
+	pfm_alt_intr_handler = hdl;
+
+	spin_unlock(&pfm_alt_install_check);
+
+	return 0;
+
+cleanup_reserve:
+	for_each_online_cpu(i) {
+		/* don't unreserve more than we reserved */
+		if (i >= reserve_cpu) break;
+
+		pfm_unreserve_session(NULL, 1, i);
+	}
+
+	spin_unlock(&pfm_alt_install_check);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(pfm_install_alt_pmu_interrupt);
+
+int
+pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *hdl)
+{
+	int i;
+	int ret;
+
+	if (hdl == NULL) return -EINVAL;
+
+	/* cannot remove someone else's handler! */
+	if (pfm_alt_intr_handler != hdl) return -EINVAL;
+
+	/* one at a time in the install or remove, just fail the others */
+	if (!spin_trylock(&pfm_alt_install_check)) {
+		return -EBUSY;
+	}
+
+	pfm_alt_intr_handler = NULL;
+
+	ret = on_each_cpu(pfm_alt_restore_pmu_state, NULL, 0, 1);
+	if (ret) {
+		DPRINT(("on_each_cpu() failed: %d\n", ret));
+	}
+
+	for_each_online_cpu(i) {
+		pfm_unreserve_session(NULL, 1, i);
+	}
+
+	spin_unlock(&pfm_alt_install_check);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pfm_remove_alt_pmu_interrupt);
+
 /*
  * perfmon initialization routine, called from the initcall() table
  */
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 907464ee727..08c8a5eb25a 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -692,16 +692,30 @@ convert_to_non_syscall (struct task_struct *child, struct pt_regs  *pt,
 			unsigned long cfm)
 {
 	struct unw_frame_info info, prev_info;
-	unsigned long ip, pr;
+	unsigned long ip, sp, pr;
 
 	unw_init_from_blocked_task(&info, child);
 	while (1) {
 		prev_info = info;
 		if (unw_unwind(&info) < 0)
 			return;
-		if (unw_get_rp(&info, &ip) < 0)
+
+		unw_get_sp(&info, &sp);
+		if ((long)((unsigned long)child + IA64_STK_OFFSET - sp)
+		    < IA64_PT_REGS_SIZE) {
+			dprintk("ptrace.%s: ran off the top of the kernel "
+				"stack\n", __FUNCTION__);
+			return;
+		}
+		if (unw_get_pr (&prev_info, &pr) < 0) {
+			unw_get_rp(&prev_info, &ip);
+			dprintk("ptrace.%s: failed to read "
+				"predicate register (ip=0x%lx)\n",
+				__FUNCTION__, ip);
 			return;
-		if (ip < FIXADDR_USER_END)
+		}
+		if (unw_is_intr_frame(&info)
+		    && (pr & (1UL << PRED_USER_STACK)))
 			break;
 	}
 
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 0d5ee57c986..3865f088ffa 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -624,7 +624,7 @@ static struct {
 	__u16   thread_id;
 	__u16   proc_fixed_addr;
 	__u8    valid;
-}mt_info[NR_CPUS] __devinit;
+} mt_info[NR_CPUS] __devinitdata;
 
 #ifdef CONFIG_HOTPLUG_CPU
 static inline void
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index a8cf6d8a509..770fab37928 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -182,13 +182,6 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un
 		}
 	}
 
-	/*
-	 * A zero mmap always succeeds in Linux, independent of whether or not the
-	 * remaining arguments are valid.
-	 */
-	if (len == 0)
-		goto out;
-
 	/* Careful about overflows.. */
 	len = PAGE_ALIGN(len);
 	if (!len || len > TASK_SIZE) {
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 4fb44984afe..e64cb8175f7 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -271,6 +271,8 @@ void __init sn_setup(char **cmdline_p)
 	int major = sn_sal_rev_major(), minor = sn_sal_rev_minor();
 	extern void sn_cpu_init(void);
 
+	ia64_sn_plat_set_error_handling_features();
+
 	/*
 	 * If the generic code has enabled vga console support - lets
 	 * get rid of it again. This is a kludge for the fact that ACPI
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 600f23d7fd3..6e6377a69d5 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -1143,12 +1143,12 @@ config PCI_QSPAN
 
 config PCI_8260
 	bool
-	depends on PCI && 8260 && !8272
+	depends on PCI && 8260
 	default y
 
 config 8260_PCI9
 	bool "  Enable workaround for MPC826x erratum PCI 9"
-	depends on PCI_8260
+	depends on PCI_8260 && !ADS8272
 	default y
 
 choice
diff --git a/arch/ppc/boot/images/Makefile b/arch/ppc/boot/images/Makefile
index f850fb0fb51..c9ac5f5fa9e 100644
--- a/arch/ppc/boot/images/Makefile
+++ b/arch/ppc/boot/images/Makefile
@@ -22,7 +22,8 @@ targets += uImage
 $(obj)/uImage: $(obj)/vmlinux.gz
 	$(Q)rm -f $@
 	$(call if_changed,uimage)
-	@echo '  Image: $@' $(if $(wildcard $@),'is ready','not made')
+	@echo -n '  Image: $@ '
+	@if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi
 
 # Files generated that shall be removed upon make clean
 clean-files	:= sImage vmapus vmlinux* miboot* zImage* uImage
diff --git a/arch/ppc/configs/mpc8555_cds_defconfig b/arch/ppc/configs/mpc8555_cds_defconfig
index 728bd9e1a8f..15abebf46b9 100644
--- a/arch/ppc/configs/mpc8555_cds_defconfig
+++ b/arch/ppc/configs/mpc8555_cds_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.11-rc1
-# Thu Jan 20 01:25:35 2005
+# Linux kernel version: 2.6.12-rc4
+# Tue May 17 11:56:01 2005
 #
 CONFIG_MMU=y
 CONFIG_GENERIC_HARDIRQS=y
@@ -11,6 +11,7 @@ CONFIG_HAVE_DEC_LOCK=y
 CONFIG_PPC=y
 CONFIG_PPC32=y
 CONFIG_GENERIC_NVRAM=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 
 #
 # Code maturity level options
@@ -18,6 +19,7 @@ CONFIG_GENERIC_NVRAM=y
 CONFIG_EXPERIMENTAL=y
 CONFIG_CLEAN_COMPILE=y
 CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
 
 #
 # General setup
@@ -29,12 +31,14 @@ CONFIG_SYSVIPC=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_HOTPLUG is not set
 CONFIG_KOBJECT_UEVENT=y
 # CONFIG_IKCONFIG is not set
 CONFIG_EMBEDDED=y
 # CONFIG_KALLSYMS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 # CONFIG_EPOLL is not set
 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
@@ -44,6 +48,7 @@ CONFIG_CC_ALIGN_LABELS=0
 CONFIG_CC_ALIGN_LOOPS=0
 CONFIG_CC_ALIGN_JUMPS=0
 # CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
 
 #
 # Loadable module support
@@ -62,10 +67,12 @@ CONFIG_CC_ALIGN_JUMPS=0
 CONFIG_E500=y
 CONFIG_BOOKE=y
 CONFIG_FSL_BOOKE=y
+# CONFIG_PHYS_64BIT is not set
 CONFIG_SPE=y
 CONFIG_MATH_EMULATION=y
 # CONFIG_CPU_FREQ is not set
 CONFIG_PPC_GEN550=y
+# CONFIG_PM is not set
 CONFIG_85xx=y
 CONFIG_PPC_INDIRECT_PCI_BE=y
 
@@ -76,6 +83,7 @@ CONFIG_PPC_INDIRECT_PCI_BE=y
 CONFIG_MPC8555_CDS=y
 # CONFIG_MPC8560_ADS is not set
 # CONFIG_SBC8560 is not set
+# CONFIG_STX_GP3 is not set
 CONFIG_MPC8555=y
 CONFIG_85xx_PCI2=y
 
@@ -90,6 +98,7 @@ CONFIG_CPM2=y
 CONFIG_BINFMT_ELF=y
 # CONFIG_BINFMT_MISC is not set
 # CONFIG_CMDLINE_BOOL is not set
+CONFIG_ISA_DMA_API=y
 
 #
 # Bus options
@@ -105,10 +114,6 @@ CONFIG_PCI_NAMES=y
 # CONFIG_PCCARD is not set
 
 #
-# PC-card bridges
-#
-
-#
 # Advanced setup
 #
 # CONFIG_ADVANCED_OPTIONS is not set
@@ -180,7 +185,59 @@ CONFIG_IOSCHED_CFQ=y
 #
 # ATA/ATAPI/MFM/RLL support
 #
-# CONFIG_IDE is not set
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDE=y
+
+#
+# Please see Documentation/ide.txt for help/info on IDE drives
+#
+# CONFIG_BLK_DEV_IDE_SATA is not set
+CONFIG_BLK_DEV_IDEDISK=y
+# CONFIG_IDEDISK_MULTI_MODE is not set
+# CONFIG_BLK_DEV_IDECD is not set
+# CONFIG_BLK_DEV_IDETAPE is not set
+# CONFIG_BLK_DEV_IDEFLOPPY is not set
+# CONFIG_IDE_TASK_IOCTL is not set
+
+#
+# IDE chipset support/bugfixes
+#
+CONFIG_IDE_GENERIC=y
+CONFIG_BLK_DEV_IDEPCI=y
+CONFIG_IDEPCI_SHARE_IRQ=y
+# CONFIG_BLK_DEV_OFFBOARD is not set
+CONFIG_BLK_DEV_GENERIC=y
+# CONFIG_BLK_DEV_OPTI621 is not set
+# CONFIG_BLK_DEV_SL82C105 is not set
+CONFIG_BLK_DEV_IDEDMA_PCI=y
+# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
+CONFIG_IDEDMA_PCI_AUTO=y
+# CONFIG_IDEDMA_ONLYDISK is not set
+# CONFIG_BLK_DEV_AEC62XX is not set
+# CONFIG_BLK_DEV_ALI15X3 is not set
+# CONFIG_BLK_DEV_AMD74XX is not set
+# CONFIG_BLK_DEV_CMD64X is not set
+# CONFIG_BLK_DEV_TRIFLEX is not set
+# CONFIG_BLK_DEV_CY82C693 is not set
+# CONFIG_BLK_DEV_CS5520 is not set
+# CONFIG_BLK_DEV_CS5530 is not set
+# CONFIG_BLK_DEV_HPT34X is not set
+# CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_SC1200 is not set
+# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_NS87415 is not set
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+# CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
+# CONFIG_BLK_DEV_SLC90E66 is not set
+# CONFIG_BLK_DEV_TRM290 is not set
+CONFIG_BLK_DEV_VIA82CXXX=y
+# CONFIG_IDE_ARM is not set
+CONFIG_BLK_DEV_IDEDMA=y
+# CONFIG_IDEDMA_IVB is not set
+CONFIG_IDEDMA_AUTO=y
+# CONFIG_BLK_DEV_HD is not set
 
 #
 # SCSI device support
@@ -220,7 +277,6 @@ CONFIG_NET=y
 #
 CONFIG_PACKET=y
 # CONFIG_PACKET_MMAP is not set
-# CONFIG_NETLINK_DEV is not set
 CONFIG_UNIX=y
 # CONFIG_NET_KEY is not set
 CONFIG_INET=y
@@ -370,14 +426,6 @@ CONFIG_INPUT=y
 # CONFIG_INPUT_EVBUG is not set
 
 #
-# Input I/O drivers
-#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
-# CONFIG_SERIO is not set
-# CONFIG_SERIO_I8042 is not set
-
-#
 # Input Device Drivers
 #
 # CONFIG_INPUT_KEYBOARD is not set
@@ -387,6 +435,13 @@ CONFIG_SOUND_GAMEPORT=y
 # CONFIG_INPUT_MISC is not set
 
 #
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+CONFIG_SOUND_GAMEPORT=y
+
+#
 # Character devices
 #
 # CONFIG_VT is not set
@@ -406,6 +461,7 @@ CONFIG_SERIAL_8250_NR_UARTS=4
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
 # CONFIG_SERIAL_CPM is not set
+# CONFIG_SERIAL_JSM is not set
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -434,6 +490,11 @@ CONFIG_GEN_RTC=y
 # CONFIG_RAW_DRIVER is not set
 
 #
+# TPM devices
+#
+# CONFIG_TCG_TPM is not set
+
+#
 # I2C support
 #
 CONFIG_I2C=y
@@ -456,11 +517,11 @@ CONFIG_I2C_CHARDEV=y
 # CONFIG_I2C_AMD8111 is not set
 # CONFIG_I2C_I801 is not set
 # CONFIG_I2C_I810 is not set
+# CONFIG_I2C_PIIX4 is not set
 # CONFIG_I2C_ISA is not set
 CONFIG_I2C_MPC=y
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
-# CONFIG_I2C_PIIX4 is not set
 # CONFIG_I2C_PROSAVAGE is not set
 # CONFIG_I2C_SAVAGE4 is not set
 # CONFIG_SCx200_ACB is not set
@@ -483,7 +544,9 @@ CONFIG_I2C_MPC=y
 # CONFIG_SENSORS_ASB100 is not set
 # CONFIG_SENSORS_DS1621 is not set
 # CONFIG_SENSORS_FSCHER is not set
+# CONFIG_SENSORS_FSCPOS is not set
 # CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
 # CONFIG_SENSORS_IT87 is not set
 # CONFIG_SENSORS_LM63 is not set
 # CONFIG_SENSORS_LM75 is not set
@@ -494,9 +557,11 @@ CONFIG_I2C_MPC=y
 # CONFIG_SENSORS_LM85 is not set
 # CONFIG_SENSORS_LM87 is not set
 # CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_PC87360 is not set
 # CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_SIS5595 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_VIA686A is not set
 # CONFIG_SENSORS_W83781D is not set
@@ -506,10 +571,12 @@ CONFIG_I2C_MPC=y
 #
 # Other I2C Chip support
 #
+# CONFIG_SENSORS_DS1337 is not set
 # CONFIG_SENSORS_EEPROM is not set
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_SENSORS_PCF8591 is not set
 # CONFIG_SENSORS_RTC8564 is not set
+# CONFIG_SENSORS_M41T00 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEBUG_ALGO is not set
 # CONFIG_I2C_DEBUG_BUS is not set
@@ -538,7 +605,6 @@ CONFIG_I2C_MPC=y
 # Graphics support
 #
 # CONFIG_FB is not set
-# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
 
 #
 # Sound
@@ -548,13 +614,9 @@ CONFIG_I2C_MPC=y
 #
 # USB support
 #
-# CONFIG_USB is not set
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
-
-#
-# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information
-#
+# CONFIG_USB is not set
 
 #
 # USB Gadget Support
@@ -585,6 +647,10 @@ CONFIG_JBD=y
 CONFIG_FS_MBCACHE=y
 # CONFIG_REISERFS_FS is not set
 # CONFIG_JFS_FS is not set
+
+#
+# XFS support
+#
 # CONFIG_XFS_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -646,7 +712,6 @@ CONFIG_NFS_FS=y
 # CONFIG_NFSD is not set
 CONFIG_ROOT_NFS=y
 CONFIG_LOCKD=y
-# CONFIG_EXPORTFS is not set
 CONFIG_SUNRPC=y
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
@@ -698,7 +763,9 @@ CONFIG_CRC32=y
 #
 # Kernel hacking
 #
+# CONFIG_PRINTK_TIME is not set
 # CONFIG_DEBUG_KERNEL is not set
+CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_KGDB_CONSOLE is not set
 # CONFIG_SERIAL_TEXT_DEBUG is not set
 
diff --git a/arch/ppc/kernel/head_fsl_booke.S b/arch/ppc/kernel/head_fsl_booke.S
index f22ddce3613..ce36e88ba62 100644
--- a/arch/ppc/kernel/head_fsl_booke.S
+++ b/arch/ppc/kernel/head_fsl_booke.S
@@ -232,7 +232,8 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	tlbwe
 
 /* 7. Jump to KERNELBASE mapping */
-	li	r7,0
+	lis	r7,MSR_KERNEL@h
+	ori	r7,r7,MSR_KERNEL@l
 	bl	1f			/* Find our address */
 1:	mflr	r9
 	rlwimi	r6,r9,0,20,31
@@ -293,6 +294,18 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	mtspr	SPRN_HID0, r2
 #endif
 
+#if !defined(CONFIG_BDI_SWITCH)
+	/*
+	 * The Abatron BDI JTAG debugger does not tolerate others
+	 * mucking with the debug registers.
+	 */
+	lis	r2,DBCR0_IDM@h
+	mtspr	SPRN_DBCR0,r2
+	/* clear any residual debug events */
+	li	r2,-1
+	mtspr	SPRN_DBSR,r2
+#endif
+
 	/*
 	 * This is where the main kernel code starts.
 	 */
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index f8e7e324a17..c65731e8bc6 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -408,12 +408,7 @@ static int emulate_string_inst(struct pt_regs *regs, u32 instword)
 
 	/* Early out if we are an invalid form of lswx */
 	if ((instword & INST_STRING_MASK) == INST_LSWX)
-		if ((rA >= rT) || (NB_RB >= rT) || (rT == rA) || (rT == NB_RB))
-			return -EINVAL;
-
-	/* Early out if we are an invalid form of lswi */
-	if ((instword & INST_STRING_MASK) == INST_LSWI)
-		if ((rA >= rT) || (rT == rA))
+		if ((rT == rA) || (rT == NB_RB))
 			return -EINVAL;
 
 	EA = (rA == 0) ? 0 : regs->gpr[rA];
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.c b/arch/ppc/platforms/83xx/mpc834x_sys.c
index b3b0f51979d..e6348b5a1dd 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.c
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.c
@@ -127,7 +127,6 @@ mpc834x_sys_map_io(void)
 {
 	/* we steal the lowest ioremap addr for virt space */
 	io_block_mapping(VIRT_IMMRBAR, immrbar, 1024*1024, _PAGE_IO);
-	io_block_mapping(BCSR_VIRT_ADDR, BCSR_PHYS_ADDR, BCSR_SIZE, _PAGE_IO);
 }
 
 int
diff --git a/arch/ppc/platforms/83xx/mpc834x_sys.h b/arch/ppc/platforms/83xx/mpc834x_sys.h
index f4d055ae19c..a2f6e49d715 100644
--- a/arch/ppc/platforms/83xx/mpc834x_sys.h
+++ b/arch/ppc/platforms/83xx/mpc834x_sys.h
@@ -26,9 +26,14 @@
 #define VIRT_IMMRBAR		((uint)0xfe000000)
 
 #define BCSR_PHYS_ADDR		((uint)0xf8000000)
-#define BCSR_VIRT_ADDR		((uint)0xfe100000)
 #define BCSR_SIZE		((uint)(32 * 1024))
 
+#define BCSR_MISC_REG2_OFF	0x07
+#define BCSR_MISC_REG2_PORESET	0x01
+
+#define BCSR_MISC_REG3_OFF	0x08
+#define BCSR_MISC_REG3_CNFLOCK	0x80
+
 #ifdef CONFIG_PCI
 /* PCI interrupt controller */
 #define PIRQA        MPC83xx_IRQ_IRQ4
diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/platforms/85xx/mpc8540_ads.c
index 4d857d6d633..583838ab02d 100644
--- a/arch/ppc/platforms/85xx/mpc8540_ads.c
+++ b/arch/ppc/platforms/85xx/mpc8540_ads.c
@@ -210,6 +210,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
 	ppc_md.progress = gen550_progress;
 #endif	/* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
+#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
+	ppc_md.early_serial_map = mpc85xx_early_serial_map;
+#endif	/* CONFIG_SERIAL_8250 && CONFIG_KGDB */
 
 	if (ppc_md.progress)
 		ppc_md.progress("mpc8540ads_init(): exit", 0);
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index 6c020d67ad7..e7cfa498568 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -44,6 +44,7 @@
 #include <asm/machdep.h>
 #include <asm/prom.h>
 #include <asm/open_pic.h>
+#include <asm/i8259.h>
 #include <asm/bootinfo.h>
 #include <asm/pci-bridge.h>
 #include <asm/mpc85xx.h>
@@ -181,6 +182,7 @@ void __init
 mpc85xx_cds_init_IRQ(void)
 {
 	bd_t *binfo = (bd_t *) __res;
+	int i;
 
 	/* Determine the Physical Address of the OpenPIC regs */
 	phys_addr_t OpenPIC_PAddr = binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET;
@@ -198,6 +200,15 @@ mpc85xx_cds_init_IRQ(void)
 	 */
 	openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET);
 
+#ifdef CONFIG_PCI
+	openpic_hookup_cascade(PIRQ0A, "82c59 cascade", i8259_irq);
+
+	for (i = 0; i < NUM_8259_INTERRUPTS; i++)
+		irq_desc[i].handler = &i8259_pic;
+
+	i8259_init(0);
+#endif
+
 #ifdef CONFIG_CPM2
 	/* Setup CPM2 PIC */
         cpm2_init_IRQ();
@@ -231,7 +242,7 @@ mpc85xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
 			 * interrupt on slot */
 		{
 			{ 0, 1, 2, 3 }, /* 16 - PMC */
-			{ 3, 0, 0, 0 }, /* 17 P2P (Tsi320) */
+			{ 0, 1, 2, 3 }, /* 17 P2P (Tsi320) */
 			{ 0, 1, 2, 3 }, /* 18 - Slot 1 */
 			{ 1, 2, 3, 0 }, /* 19 - Slot 2 */
 			{ 2, 3, 0, 1 }, /* 20 - Slot 3 */
@@ -280,13 +291,135 @@ mpc85xx_exclude_device(u_char bus, u_char devfn)
 			return PCIBIOS_DEVICE_NOT_FOUND;
 #endif
 	/* We explicitly do not go past the Tundra 320 Bridge */
-	if (bus == 1)
+	if ((bus == 1) && (PCI_SLOT(devfn) == ARCADIA_2ND_BRIDGE_IDSEL))
 		return PCIBIOS_DEVICE_NOT_FOUND;
 	if ((bus == 0) && (PCI_SLOT(devfn) == ARCADIA_2ND_BRIDGE_IDSEL))
 		return PCIBIOS_DEVICE_NOT_FOUND;
 	else
 		return PCIBIOS_SUCCESSFUL;
 }
+
+void __init
+mpc85xx_cds_enable_via(struct pci_controller *hose)
+{
+	u32 pci_class;
+	u16 vid, did;
+
+	early_read_config_dword(hose, 0, 0x88, PCI_CLASS_REVISION, &pci_class);
+	if ((pci_class >> 16) != PCI_CLASS_BRIDGE_PCI)
+		return;
+
+	/* Configure P2P so that we can reach bus 1 */
+	early_write_config_byte(hose, 0, 0x88, PCI_PRIMARY_BUS, 0);
+	early_write_config_byte(hose, 0, 0x88, PCI_SECONDARY_BUS, 1);
+	early_write_config_byte(hose, 0, 0x88, PCI_SUBORDINATE_BUS, 0xff);
+
+	early_read_config_word(hose, 1, 0x10, PCI_VENDOR_ID, &vid);
+	early_read_config_word(hose, 1, 0x10, PCI_DEVICE_ID, &did);
+
+	if ((vid != PCI_VENDOR_ID_VIA) ||
+			(did != PCI_DEVICE_ID_VIA_82C686))
+		return;
+
+	/* Enable USB and IDE functions */
+	early_write_config_byte(hose, 1, 0x10, 0x48, 0x08);
+}
+
+void __init
+mpc85xx_cds_fixup_via(struct pci_controller *hose)
+{
+	u32 pci_class;
+	u16 vid, did;
+
+	early_read_config_dword(hose, 0, 0x88, PCI_CLASS_REVISION, &pci_class);
+	if ((pci_class >> 16) != PCI_CLASS_BRIDGE_PCI)
+		return;
+
+	/*
+	 * Force the backplane P2P bridge to have a window
+	 * open from 0x00000000-0x00001fff in PCI I/O space.
+	 * This allows legacy I/O (i8259, etc) on the VIA
+	 * southbridge to be accessed.
+	 */
+	early_write_config_byte(hose, 0, 0x88, PCI_IO_BASE, 0x00);
+	early_write_config_word(hose, 0, 0x88, PCI_IO_BASE_UPPER16, 0x0000);
+	early_write_config_byte(hose, 0, 0x88, PCI_IO_LIMIT, 0x10);
+	early_write_config_word(hose, 0, 0x88, PCI_IO_LIMIT_UPPER16, 0x0000);
+
+	early_read_config_word(hose, 1, 0x10, PCI_VENDOR_ID, &vid);
+	early_read_config_word(hose, 1, 0x10, PCI_DEVICE_ID, &did);
+	if ((vid != PCI_VENDOR_ID_VIA) ||
+			(did != PCI_DEVICE_ID_VIA_82C686))
+		return;
+
+	/*
+	 * Since the P2P window was forced to cover the fixed
+	 * legacy I/O addresses, it is necessary to manually
+	 * place the base addresses for the IDE and USB functions
+	 * within this window.
+	 */
+	/* Function 1, IDE */
+	early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_0, 0x1ff8);
+	early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_1, 0x1ff4);
+	early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_2, 0x1fe8);
+	early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_3, 0x1fe4);
+	early_write_config_dword(hose, 1, 0x11, PCI_BASE_ADDRESS_4, 0x1fd0);
+
+	/* Function 2, USB ports 0-1 */
+	early_write_config_dword(hose, 1, 0x12, PCI_BASE_ADDRESS_4, 0x1fa0);
+
+	/* Function 3, USB ports 2-3 */
+	early_write_config_dword(hose, 1, 0x13, PCI_BASE_ADDRESS_4, 0x1f80);
+
+	/* Function 5, Power Management */
+	early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_0, 0x1e00);
+	early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_1, 0x1dfc);
+	early_write_config_dword(hose, 1, 0x15, PCI_BASE_ADDRESS_2, 0x1df8);
+
+	/* Function 6, AC97 Interface */
+	early_write_config_dword(hose, 1, 0x16, PCI_BASE_ADDRESS_0, 0x1c00);
+}
+
+void __init
+mpc85xx_cds_pcibios_fixup(void)
+{
+        struct pci_dev *dev = NULL;
+	u_char		c;
+
+        if ((dev = pci_find_device(PCI_VENDOR_ID_VIA,
+                                        PCI_DEVICE_ID_VIA_82C586_1, NULL))) {
+                /*
+                 * U-Boot does not set the enable bits
+                 * for the IDE device. Force them on here.
+                 */
+                pci_read_config_byte(dev, 0x40, &c);
+                c |= 0x03; /* IDE: Chip Enable Bits */
+                pci_write_config_byte(dev, 0x40, c);
+
+		/*
+		 * Since only primary interface works, force the
+		 * IDE function to standard primary IDE interrupt
+		 * w/ 8259 offset
+		 */
+                dev->irq = 14;
+                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
+        }
+
+	/*
+	 * Force legacy USB interrupt routing
+	 */
+        if ((dev = pci_find_device(PCI_VENDOR_ID_VIA,
+                                        PCI_DEVICE_ID_VIA_82C586_2, NULL))) {
+                dev->irq = 10;
+                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 10);
+        }
+
+        if ((dev = pci_find_device(PCI_VENDOR_ID_VIA,
+                                        PCI_DEVICE_ID_VIA_82C586_2, dev))) {
+                dev->irq = 11;
+                pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
+        }
+}
 #endif /* CONFIG_PCI */
 
 TODC_ALLOC();
@@ -328,6 +461,9 @@ mpc85xx_cds_setup_arch(void)
 	loops_per_jiffy = freq / HZ;
 
 #ifdef CONFIG_PCI
+	/* VIA IDE configuration */
+        ppc_md.pcibios_fixup = mpc85xx_cds_pcibios_fixup;
+
 	/* setup PCI host bridges */
 	mpc85xx_setup_hose();
 #endif
@@ -459,6 +595,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
 	ppc_md.progress = gen550_progress;
 #endif /* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
+#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
+	ppc_md.early_serial_map = mpc85xx_early_serial_map;
+#endif	/* CONFIG_SERIAL_8250 && CONFIG_KGDB */
 
 	if (ppc_md.progress)
 		ppc_md.progress("mpc85xx_cds_init(): exit", 0);
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
index 7627d77504b..12b292c6ae3 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.h
@@ -77,4 +77,7 @@
 
 #define MPC85XX_PCI2_IO_SIZE         0x01000000
 
+#define NR_8259_INTS		     16
+#define CPM_IRQ_OFFSET		     NR_8259_INTS
+
 #endif /* __MACH_MPC85XX_CDS_H__ */
diff --git a/arch/ppc/platforms/85xx/sbc8560.c b/arch/ppc/platforms/85xx/sbc8560.c
index 9ab05e590c3..7b9e1543e17 100644
--- a/arch/ppc/platforms/85xx/sbc8560.c
+++ b/arch/ppc/platforms/85xx/sbc8560.c
@@ -221,6 +221,9 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #if defined(CONFIG_SERIAL_8250) && defined(CONFIG_SERIAL_TEXT_DEBUG)
 	ppc_md.progress = gen550_progress;
 #endif	/* CONFIG_SERIAL_8250 && CONFIG_SERIAL_TEXT_DEBUG */
+#if defined(CONFIG_SERIAL_8250) && defined(CONFIG_KGDB)
+	ppc_md.early_serial_map = sbc8560_early_serial_map;
+#endif	/* CONFIG_SERIAL_8250 && CONFIG_KGDB */
 
 	if (ppc_md.progress)
 		ppc_md.progress("sbc8560_init(): exit", 0);
diff --git a/arch/ppc/platforms/pmac_cpufreq.c b/arch/ppc/platforms/pmac_cpufreq.c
index f7fb2786cd5..937f46df711 100644
--- a/arch/ppc/platforms/pmac_cpufreq.c
+++ b/arch/ppc/platforms/pmac_cpufreq.c
@@ -85,14 +85,11 @@ static int no_schedule;
 static int has_cpu_l2lve;
 
 
-#define PMAC_CPU_LOW_SPEED	1
-#define PMAC_CPU_HIGH_SPEED	0
-
 /* There are only two frequency states for each processor. Values
  * are in kHz for the time being.
  */
-#define CPUFREQ_HIGH                  PMAC_CPU_HIGH_SPEED
-#define CPUFREQ_LOW                   PMAC_CPU_LOW_SPEED
+#define CPUFREQ_HIGH                  0
+#define CPUFREQ_LOW                   1
 
 static struct cpufreq_frequency_table pmac_cpu_freqs[] = {
 	{CPUFREQ_HIGH, 		0},
@@ -100,6 +97,11 @@ static struct cpufreq_frequency_table pmac_cpu_freqs[] = {
 	{0,			CPUFREQ_TABLE_END},
 };
 
+static struct freq_attr* pmac_cpu_freqs_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+};
+
 static inline void local_delay(unsigned long ms)
 {
 	if (no_schedule)
@@ -269,6 +271,8 @@ static int __pmac pmu_set_cpu_speed(int low_speed)
 #ifdef DEBUG_FREQ
 	printk(KERN_DEBUG "HID1, before: %x\n", mfspr(SPRN_HID1));
 #endif
+	pmu_suspend();
+
 	/* Disable all interrupt sources on openpic */
  	pic_prio = openpic_get_priority();
 	openpic_set_priority(0xf);
@@ -343,6 +347,8 @@ static int __pmac pmu_set_cpu_speed(int low_speed)
 	debug_calc_bogomips();
 #endif
 
+	pmu_resume();
+
 	preempt_enable();
 
 	return 0;
@@ -355,7 +361,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify)
 	static unsigned long prev_l3cr;
 
 	freqs.old = cur_freq;
-	freqs.new = (speed_mode == PMAC_CPU_HIGH_SPEED) ? hi_freq : low_freq;
+	freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
 	freqs.cpu = smp_processor_id();
 
 	if (freqs.old == freqs.new)
@@ -363,7 +369,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify)
 
 	if (notify)
 		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-	if (speed_mode == PMAC_CPU_LOW_SPEED &&
+	if (speed_mode == CPUFREQ_LOW &&
 	    cpu_has_feature(CPU_FTR_L3CR)) {
 		l3cr = _get_L3CR();
 		if (l3cr & L3CR_L3E) {
@@ -371,8 +377,8 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify)
 			_set_L3CR(0);
 		}
 	}
-	set_speed_proc(speed_mode == PMAC_CPU_LOW_SPEED);
-	if (speed_mode == PMAC_CPU_HIGH_SPEED &&
+	set_speed_proc(speed_mode == CPUFREQ_LOW);
+	if (speed_mode == CPUFREQ_HIGH &&
 	    cpu_has_feature(CPU_FTR_L3CR)) {
 		l3cr = _get_L3CR();
 		if ((prev_l3cr & L3CR_L3E) && l3cr != prev_l3cr)
@@ -380,7 +386,7 @@ static int __pmac do_set_cpu_speed(int speed_mode, int notify)
 	}
 	if (notify)
 		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-	cur_freq = (speed_mode == PMAC_CPU_HIGH_SPEED) ? hi_freq : low_freq;
+	cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
 
 	return 0;
 }
@@ -423,7 +429,8 @@ static int __pmac pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency	= CPUFREQ_ETERNAL;
 	policy->cur = cur_freq;
 
-	return cpufreq_frequency_table_cpuinfo(policy, &pmac_cpu_freqs[0]);
+	cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu);
+	return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs);
 }
 
 static u32 __pmac read_gpio(struct device_node *np)
@@ -457,7 +464,7 @@ static int __pmac pmac_cpufreq_suspend(struct cpufreq_policy *policy, u32 state)
 	no_schedule = 1;
 	sleep_freq = cur_freq;
 	if (cur_freq == low_freq)
-		do_set_cpu_speed(PMAC_CPU_HIGH_SPEED, 0);
+		do_set_cpu_speed(CPUFREQ_HIGH, 0);
 	return 0;
 }
 
@@ -473,8 +480,8 @@ static int __pmac pmac_cpufreq_resume(struct cpufreq_policy *policy)
 	 * is that we force a switch to whatever it was, which is
 	 * probably high speed due to our suspend() routine
 	 */
-	do_set_cpu_speed(sleep_freq == low_freq ? PMAC_CPU_LOW_SPEED
-			 : PMAC_CPU_HIGH_SPEED, 0);
+	do_set_cpu_speed(sleep_freq == low_freq ?
+			 CPUFREQ_LOW : CPUFREQ_HIGH, 0);
 
 	no_schedule = 0;
 	return 0;
@@ -488,6 +495,7 @@ static struct cpufreq_driver pmac_cpufreq_driver = {
 	.suspend	= pmac_cpufreq_suspend,
 	.resume		= pmac_cpufreq_resume,
 	.flags		= CPUFREQ_PM_NO_WARN,
+	.attr		= pmac_cpu_freqs_attr,
 	.name		= "powermac",
 	.owner		= THIS_MODULE,
 };
diff --git a/arch/ppc/platforms/pq2ads.h b/arch/ppc/platforms/pq2ads.h
index cf5e5dd06d6..067d9a5aebc 100644
--- a/arch/ppc/platforms/pq2ads.h
+++ b/arch/ppc/platforms/pq2ads.h
@@ -49,10 +49,10 @@
 /* PCI interrupt controller */
 #define PCI_INT_STAT_REG	0xF8200000
 #define PCI_INT_MASK_REG	0xF8200004
-#define PIRQA			(NR_SIU_INTS + 0)
-#define PIRQB			(NR_SIU_INTS + 1)
-#define PIRQC			(NR_SIU_INTS + 2)
-#define PIRQD			(NR_SIU_INTS + 3)
+#define PIRQA			(NR_CPM_INTS + 0)
+#define PIRQB			(NR_CPM_INTS + 1)
+#define PIRQC			(NR_CPM_INTS + 2)
+#define PIRQD			(NR_CPM_INTS + 3)
 
 /*
  * PCI memory map definitions for MPC8266ADS-PCI.
@@ -68,28 +68,23 @@
  *	0x00000000-0x1FFFFFFF	0x00000000-0x1FFFFFFF	MPC8266 local memory
  */
 
-/* window for a PCI master to access MPC8266 memory */
-#define PCI_SLV_MEM_LOCAL	0x00000000	/* Local base */
-#define PCI_SLV_MEM_BUS		0x00000000	/* PCI base */
+/* All the other PCI memory map definitions reside at syslib/m82xx_pci.h
+   Here we should redefine what is unique for this board */
+#define M82xx_PCI_SLAVE_MEM_LOCAL	0x00000000	/* Local base */
+#define M82xx_PCI_SLAVE_MEM_BUS		0x00000000	/* PCI base */
+#define M82xx_PCI_SLAVE_MEM_SIZE	0x10000000	/* 256 Mb */
 
-/* window for the processor to access PCI memory with prefetching */
-#define PCI_MSTR_MEM_LOCAL	0x80000000	/* Local base */
-#define PCI_MSTR_MEM_BUS	0x80000000	/* PCI base   */
-#define PCI_MSTR_MEM_SIZE	0x20000000	/* 512MB */
+#define M82xx_PCI_SLAVE_SEC_WND_SIZE	~(0x40000000 - 1U)	/* 2 x 512Mb  */
+#define M82xx_PCI_SLAVE_SEC_WND_BASE	0x80000000		/* PCI Memory base */
 
-/* window for the processor to access PCI memory without prefetching */
-#define PCI_MSTR_MEMIO_LOCAL	0xA0000000	/* Local base */
-#define PCI_MSTR_MEMIO_BUS	0xA0000000	/* PCI base   */
-#define PCI_MSTR_MEMIO_SIZE	0x20000000	/* 512MB */
+#if defined(CONFIG_ADS8272)
+#define PCI_INT_TO_SIU 	SIU_INT_IRQ2
+#elif defined(CONFIG_PQ2FADS)
+#define PCI_INT_TO_SIU 	SIU_INT_IRQ6
+#else
+#warning PCI Bridge will be without interrupts support
+#endif
 
-/* window for the processor to access PCI I/O */
-#define PCI_MSTR_IO_LOCAL	0xF4000000	/* Local base */
-#define PCI_MSTR_IO_BUS         0x00000000	/* PCI base   */
-#define PCI_MSTR_IO_SIZE        0x04000000	/* 64MB */
-
-#define _IO_BASE		PCI_MSTR_IO_LOCAL
-#define _ISA_MEM_BASE		PCI_MSTR_MEMIO_LOCAL
-#define PCI_DRAM_OFFSET		PCI_SLV_MEM_BUS
 #endif /* CONFIG_PCI */
 
 #endif /* __MACH_ADS8260_DEFS */
diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index dd418ea3426..96acf85800d 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -81,7 +81,7 @@ obj-$(CONFIG_SBC82xx)		+= todc_time.o
 obj-$(CONFIG_SPRUCE)		+= cpc700_pic.o indirect_pci.o pci_auto.o \
 				   todc_time.o
 obj-$(CONFIG_8260)		+= m8260_setup.o
-obj-$(CONFIG_PCI_8260)		+= m8260_pci.o indirect_pci.o
+obj-$(CONFIG_PCI_8260)		+= m82xx_pci.o indirect_pci.o pci_auto.o
 obj-$(CONFIG_8260_PCI9)		+= m8260_pci_erratum9.o
 obj-$(CONFIG_CPM2)		+= cpm2_common.o cpm2_pic.o
 ifeq ($(CONFIG_PPC_GEN550),y)
@@ -97,7 +97,7 @@ obj-$(CONFIG_MPC10X_OPENPIC)	+= open_pic.o
 obj-$(CONFIG_40x)		+= dcr.o
 obj-$(CONFIG_BOOKE)		+= dcr.o
 obj-$(CONFIG_85xx)		+= open_pic.o ppc85xx_common.o ppc85xx_setup.o \
-					ppc_sys.o mpc85xx_sys.o \
+					ppc_sys.o i8259.o mpc85xx_sys.o \
 					mpc85xx_devices.o
 ifeq ($(CONFIG_85xx),y)
 obj-$(CONFIG_PCI)		+= indirect_pci.o pci_auto.o
diff --git a/arch/ppc/syslib/m8260_pci.c b/arch/ppc/syslib/m8260_pci.c
deleted file mode 100644
index 057cc3f8ff3..00000000000
--- a/arch/ppc/syslib/m8260_pci.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004 Red Hat, Inc.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/immap_cpm2.h>
-#include <asm/mpc8260.h>
-
-#include "m8260_pci.h"
-
-
-/* PCI bus configuration registers.
- */
-
-static void __init m8260_setup_pci(struct pci_controller *hose)
-{
-	volatile cpm2_map_t *immap = cpm2_immr;
-	unsigned long pocmr;
-	u16 tempShort;
-
-#ifndef CONFIG_ATC 	/* already done in U-Boot */
-	/* 
-	 * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), 
-	 * and local bus for PCI (SIUMCR [LBPC]).
-	 */
-	immap->im_siu_conf.siu_82xx.sc_siumcr = 0x00640000;
-#endif
-
-	/* Make PCI lowest priority */
-	/* Each 4 bits is a device bus request  and the MS 4bits 
-	   is highest priority */
-	/* Bus               4bit value 
-	   ---               ----------
-	   CPM high          0b0000
-	   CPM middle        0b0001
-	   CPM low           0b0010
-	   PCI reguest       0b0011
-	   Reserved          0b0100
-	   Reserved          0b0101
-	   Internal Core     0b0110
-	   External Master 1 0b0111
-	   External Master 2 0b1000
-	   External Master 3 0b1001
-	   The rest are reserved */
-	immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x61207893;
-
-	/* Park bus on core while modifying PCI Bus accesses */
-	immap->im_siu_conf.siu_82xx.sc_ppc_acr = 0x6;
-
-	/* 
-	 * Set up master window that allows the CPU to access PCI space. This 
-	 * window is set up using the first SIU PCIBR registers.
-	 */
-	immap->im_memctl.memc_pcimsk0 = MPC826x_PCI_MASK;
-	immap->im_memctl.memc_pcibr0 =	MPC826x_PCI_BASE | PCIBR_ENABLE;
-
-	/* Disable machine check on no response or target abort */
-	immap->im_pci.pci_emr = cpu_to_le32(0x1fe7);
-	/* Release PCI RST (by default the PCI RST signal is held low)  */
-	immap->im_pci.pci_gcr = cpu_to_le32(PCIGCR_PCI_BUS_EN);
-
-	/* give it some time */
-	mdelay(1);
-
-	/* 
-	 * Set up master window that allows the CPU to access PCI Memory (prefetch) 
-	 * space. This window is set up using the first set of Outbound ATU registers.
-	 */
-	immap->im_pci.pci_potar0 = cpu_to_le32(MPC826x_PCI_LOWER_MEM >> 12);
-	immap->im_pci.pci_pobar0 = cpu_to_le32((MPC826x_PCI_LOWER_MEM - MPC826x_PCI_MEM_OFFSET) >> 12);
-	pocmr = ((MPC826x_PCI_UPPER_MEM - MPC826x_PCI_LOWER_MEM) >> 12) ^ 0xfffff;
-	immap->im_pci.pci_pocmr0 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PREFETCH_EN);
-
-	/* 
-	 * Set up master window that allows the CPU to access PCI Memory (non-prefetch) 
-	 * space. This window is set up using the second set of Outbound ATU registers.
-	 */
-	immap->im_pci.pci_potar1 = cpu_to_le32(MPC826x_PCI_LOWER_MMIO >> 12);
-	immap->im_pci.pci_pobar1 = cpu_to_le32((MPC826x_PCI_LOWER_MMIO - MPC826x_PCI_MMIO_OFFSET) >> 12);
-	pocmr = ((MPC826x_PCI_UPPER_MMIO - MPC826x_PCI_LOWER_MMIO) >> 12) ^ 0xfffff;
-	immap->im_pci.pci_pocmr1 = cpu_to_le32(pocmr | POCMR_ENABLE);
-
-	/* 
-	 * Set up master window that allows the CPU to access PCI IO space. This window
-	 * is set up using the third set of Outbound ATU registers.
-	 */
-	immap->im_pci.pci_potar2 = cpu_to_le32(MPC826x_PCI_IO_BASE >> 12);
-	immap->im_pci.pci_pobar2 = cpu_to_le32(MPC826x_PCI_LOWER_IO >> 12);
-	pocmr = ((MPC826x_PCI_UPPER_IO - MPC826x_PCI_LOWER_IO) >> 12) ^ 0xfffff;
-	immap->im_pci.pci_pocmr2 = cpu_to_le32(pocmr | POCMR_ENABLE | POCMR_PCI_IO);
-
-	/* 
-	 * Set up slave window that allows PCI masters to access MPC826x local memory. 
-	 * This window is set up using the first set of Inbound ATU registers
-	 */
-
-	immap->im_pci.pci_pitar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_LOCAL >> 12);
-	immap->im_pci.pci_pibar0 = cpu_to_le32(MPC826x_PCI_SLAVE_MEM_BUS >> 12);
-	pocmr = ((MPC826x_PCI_SLAVE_MEM_SIZE-1) >> 12) ^ 0xfffff;
-	immap->im_pci.pci_picmr0 = cpu_to_le32(pocmr | PICMR_ENABLE | PICMR_PREFETCH_EN);
-
-	/* See above for description - puts PCI request as highest priority */
-	immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x03124567;
-
-	/* Park the bus on the PCI */
-	immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI;
-
-	/* Host mode - specify the bridge as a host-PCI bridge */
-	early_write_config_word(hose, 0, 0, PCI_CLASS_DEVICE, PCI_CLASS_BRIDGE_HOST);
-
-	/* Enable the host bridge to be a master on the PCI bus, and to act as a PCI memory target */
-	early_read_config_word(hose, 0, 0, PCI_COMMAND, &tempShort);
-	early_write_config_word(hose, 0, 0, PCI_COMMAND,
-				tempShort | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
-}
-
-void __init m8260_find_bridges(void)
-{
-	extern int pci_assign_all_busses;
-	struct pci_controller * hose;
-
-	pci_assign_all_busses = 1;
-
-	hose = pcibios_alloc_controller();
-
-	if (!hose)
-		return;
-
-	ppc_md.pci_swizzle = common_swizzle;
-
-	hose->first_busno = 0;
-	hose->bus_offset = 0;
-	hose->last_busno = 0xff;
-
-	setup_m8260_indirect_pci(hose, 
-				 (unsigned long)&cpm2_immr->im_pci.pci_cfg_addr,
-				 (unsigned long)&cpm2_immr->im_pci.pci_cfg_data);
-
-	m8260_setup_pci(hose);
-        hose->pci_mem_offset = MPC826x_PCI_MEM_OFFSET;
-
-        hose->io_base_virt = ioremap(MPC826x_PCI_IO_BASE,
-                                        MPC826x_PCI_IO_SIZE);
-        isa_io_base = (unsigned long) hose->io_base_virt;
- 
-        /* setup resources */
-        pci_init_resource(&hose->mem_resources[0],
-			  MPC826x_PCI_LOWER_MEM,
-			  MPC826x_PCI_UPPER_MEM,
-			  IORESOURCE_MEM|IORESOURCE_PREFETCH, "PCI prefetchable memory");
-
-        pci_init_resource(&hose->mem_resources[1],
-			  MPC826x_PCI_LOWER_MMIO,
-			  MPC826x_PCI_UPPER_MMIO,
-			  IORESOURCE_MEM, "PCI memory");
-
-        pci_init_resource(&hose->io_resource,
-			  MPC826x_PCI_LOWER_IO,
-			  MPC826x_PCI_UPPER_IO,
-			  IORESOURCE_IO, "PCI I/O");
-}
diff --git a/arch/ppc/syslib/m8260_pci.h b/arch/ppc/syslib/m8260_pci.h
deleted file mode 100644
index d1352120acd..00000000000
--- a/arch/ppc/syslib/m8260_pci.h
+++ /dev/null
@@ -1,76 +0,0 @@
-
-#ifndef _PPC_KERNEL_M8260_PCI_H
-#define _PPC_KERNEL_M8260_PCI_H
-
-#include <asm/m8260_pci.h>
-
-/*
- *   Local->PCI map (from CPU)                             controlled by
- *   MPC826x master window
- *
- *   0x80000000 - 0xBFFFFFFF    Total CPU2PCI space        PCIBR0
- *                       
- *   0x80000000 - 0x9FFFFFFF    PCI Mem with prefetch      (Outbound ATU #1)
- *   0xA0000000 - 0xAFFFFFFF    PCI Mem w/o  prefetch      (Outbound ATU #2)
- *   0xB0000000 - 0xB0FFFFFF    32-bit PCI IO              (Outbound ATU #3)
- *                      
- *   PCI->Local map (from PCI)
- *   MPC826x slave window                                  controlled by
- *
- *   0x00000000 - 0x07FFFFFF    MPC826x local memory       (Inbound ATU #1)
- */
-
-/* 
- * Slave window that allows PCI masters to access MPC826x local memory. 
- * This window is set up using the first set of Inbound ATU registers
- */
-
-#ifndef MPC826x_PCI_SLAVE_MEM_LOCAL
-#define MPC826x_PCI_SLAVE_MEM_LOCAL	(((struct bd_info *)__res)->bi_memstart)
-#define MPC826x_PCI_SLAVE_MEM_BUS	(((struct bd_info *)__res)->bi_memstart)
-#define MPC826x_PCI_SLAVE_MEM_SIZE	(((struct bd_info *)__res)->bi_memsize)
-#endif
-
-/* 
- * This is the window that allows the CPU to access PCI address space.
- * It will be setup with the SIU PCIBR0 register. All three PCI master
- * windows, which allow the CPU to access PCI prefetch, non prefetch,
- * and IO space (see below), must all fit within this window. 
- */
-#ifndef MPC826x_PCI_BASE
-#define MPC826x_PCI_BASE	0x80000000
-#define MPC826x_PCI_MASK	0xc0000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_MEM
-#define MPC826x_PCI_LOWER_MEM  0x80000000
-#define MPC826x_PCI_UPPER_MEM  0x9fffffff
-#define MPC826x_PCI_MEM_OFFSET 0x00000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_MMIO
-#define MPC826x_PCI_LOWER_MMIO  0xa0000000
-#define MPC826x_PCI_UPPER_MMIO  0xafffffff
-#define MPC826x_PCI_MMIO_OFFSET 0x00000000
-#endif
-
-#ifndef MPC826x_PCI_LOWER_IO
-#define MPC826x_PCI_LOWER_IO   0x00000000
-#define MPC826x_PCI_UPPER_IO   0x00ffffff
-#define MPC826x_PCI_IO_BASE    0xb0000000
-#define MPC826x_PCI_IO_SIZE    0x01000000
-#endif
-
-#ifndef _IO_BASE
-#define _IO_BASE isa_io_base
-#endif
-
-#ifdef CONFIG_8260_PCI9
-struct pci_controller;
-extern void setup_m8260_indirect_pci(struct pci_controller* hose,
-				     u32 cfg_addr, u32 cfg_data);
-#else
-#define setup_m8260_indirect_pci setup_indirect_pci
-#endif
-
-#endif /* _PPC_KERNEL_M8260_PCI_H */
diff --git a/arch/ppc/syslib/m8260_pci_erratum9.c b/arch/ppc/syslib/m8260_pci_erratum9.c
index 9c0582d639e..1dc7e4e1d49 100644
--- a/arch/ppc/syslib/m8260_pci_erratum9.c
+++ b/arch/ppc/syslib/m8260_pci_erratum9.c
@@ -31,7 +31,7 @@
 #include <asm/immap_cpm2.h>
 #include <asm/cpm2.h>
 
-#include "m8260_pci.h"
+#include "m82xx_pci.h"
 
 #ifdef CONFIG_8260_PCI9
 /*#include <asm/mpc8260_pci9.h>*/ /* included in asm/io.h */
@@ -248,11 +248,11 @@ EXPORT_SYMBOL(idma_pci9_read_le);
 
 static inline int is_pci_mem(unsigned long addr)
 {
-	if (addr >= MPC826x_PCI_LOWER_MMIO &&
-	    addr <= MPC826x_PCI_UPPER_MMIO)
+	if (addr >= M82xx_PCI_LOWER_MMIO &&
+		addr <= M82xx_PCI_UPPER_MMIO)
 		return 1;
-	if (addr >= MPC826x_PCI_LOWER_MEM &&
-	    addr <= MPC826x_PCI_UPPER_MEM)
+	if (addr >= M82xx_PCI_LOWER_MEM &&
+		addr <= M82xx_PCI_UPPER_MEM)
 		return 1;
 	return 0;
 }
diff --git a/arch/ppc/syslib/m8260_setup.c b/arch/ppc/syslib/m8260_setup.c
index 23ea3f694de..fda75d79050 100644
--- a/arch/ppc/syslib/m8260_setup.c
+++ b/arch/ppc/syslib/m8260_setup.c
@@ -34,7 +34,8 @@
 unsigned char __res[sizeof(bd_t)];
 
 extern void cpm2_reset(void);
-extern void m8260_find_bridges(void);
+extern void pq2_find_bridges(void);
+extern void pq2pci_init_irq(void);
 extern void idma_pci9_init(void);
 
 /* Place-holder for board-specific init */
@@ -56,7 +57,7 @@ m8260_setup_arch(void)
 	idma_pci9_init();
 #endif
 #ifdef CONFIG_PCI_8260
-	m8260_find_bridges();
+	pq2_find_bridges();
 #endif
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_start)
@@ -173,6 +174,12 @@ m8260_init_IRQ(void)
 	 * in case the boot rom changed something on us.
 	 */
 	cpm2_immr->im_intctl.ic_siprr = 0x05309770;
+
+#if defined(CONFIG_PCI) && (defined(CONFIG_ADS8272) || defined(CONFIG_PQ2FADS))
+ 	/* Initialize stuff for the 82xx CPLD IC and install demux  */
+ 	pq2pci_init_irq();
+#endif
+
 }
 
 /*
diff --git a/arch/ppc/syslib/m82xx_pci.c b/arch/ppc/syslib/m82xx_pci.c
new file mode 100644
index 00000000000..5e7a7edcea7
--- /dev/null
+++ b/arch/ppc/syslib/m82xx_pci.c
@@ -0,0 +1,383 @@
+/*
+ *
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004 Red Hat, Inc.
+ *
+ * 2005 (c) MontaVista Software, Inc.
+ * Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+#include <asm/byteorder.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/immap_cpm2.h>
+#include <asm/mpc8260.h>
+#include <asm/cpm2.h>
+
+#include "m82xx_pci.h"
+
+/*
+ * Interrupt routing
+ */
+
+static inline int
+pq2pci_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+	static char pci_irq_table[][4] =
+	/*
+	 *	PCI IDSEL/INTPIN->INTLINE
+	 * 	  A      B      C      D
+	 */
+	{
+		{ PIRQA, PIRQB, PIRQC, PIRQD },	/* IDSEL 22 - PCI slot 0 */
+		{ PIRQD, PIRQA, PIRQB, PIRQC },	/* IDSEL 23 - PCI slot 1 */
+		{ PIRQC, PIRQD, PIRQA, PIRQB },	/* IDSEL 24 - PCI slot 2 */
+	};
+
+	const long min_idsel = 22, max_idsel = 24, irqs_per_slot = 4;
+	return PCI_IRQ_TABLE_LOOKUP;
+}
+
+static void
+pq2pci_mask_irq(unsigned int irq)
+{
+	int bit = irq - NR_CPM_INTS;
+
+	*(volatile unsigned long *) PCI_INT_MASK_REG |= (1 << (31 - bit));
+	return;
+}
+
+static void
+pq2pci_unmask_irq(unsigned int irq)
+{
+	int bit = irq - NR_CPM_INTS;
+
+	*(volatile unsigned long *) PCI_INT_MASK_REG &= ~(1 << (31 - bit));
+	return;
+}
+
+static void
+pq2pci_mask_and_ack(unsigned int irq)
+{
+	int bit = irq - NR_CPM_INTS;
+
+	*(volatile unsigned long *) PCI_INT_MASK_REG |= (1 << (31 - bit));
+	return;
+}
+
+static void
+pq2pci_end_irq(unsigned int irq)
+{
+	int bit = irq - NR_CPM_INTS;
+
+	*(volatile unsigned long *) PCI_INT_MASK_REG &= ~(1 << (31 - bit));
+	return;
+}
+
+struct hw_interrupt_type pq2pci_ic = {
+	"PQ2 PCI",
+	NULL,
+	NULL,
+	pq2pci_unmask_irq,
+	pq2pci_mask_irq,
+	pq2pci_mask_and_ack,
+	pq2pci_end_irq,
+	0
+};
+
+static irqreturn_t
+pq2pci_irq_demux(int irq, void *dev_id, struct pt_regs *regs)
+{
+	unsigned long stat, mask, pend;
+	int bit;
+
+	for(;;) {
+		stat = *(volatile unsigned long *) PCI_INT_STAT_REG;
+		mask = *(volatile unsigned long *) PCI_INT_MASK_REG;
+		pend = stat & ~mask & 0xf0000000;
+		if (!pend)
+			break;
+		for (bit = 0; pend != 0; ++bit, pend <<= 1) {
+			if (pend & 0x80000000)
+				__do_IRQ(NR_CPM_INTS + bit, regs);
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction pq2pci_irqaction = {
+	.handler = pq2pci_irq_demux,
+	.flags 	 = SA_INTERRUPT,
+	.mask	 = CPU_MASK_NONE,
+	.name	 = "PQ2 PCI cascade",
+};
+
+
+void
+pq2pci_init_irq(void)
+{
+	int irq;
+	volatile cpm2_map_t *immap = cpm2_immr;
+#if defined CONFIG_ADS8272
+	/* configure chip select for PCI interrupt controller */
+	immap->im_memctl.memc_br3 = PCI_INT_STAT_REG | 0x00001801;
+	immap->im_memctl.memc_or3 = 0xffff8010;
+#elif defined CONFIG_PQ2FADS
+	immap->im_memctl.memc_br8 = PCI_INT_STAT_REG | 0x00001801;
+	immap->im_memctl.memc_or8 = 0xffff8010;
+#endif
+	for (irq = NR_CPM_INTS; irq < NR_CPM_INTS + 4; irq++)
+		irq_desc[irq].handler = &pq2pci_ic;
+
+	/* make PCI IRQ level sensitive */
+	immap->im_intctl.ic_siexr &=
+		~(1 << (14 - (PCI_INT_TO_SIU - SIU_INT_IRQ1)));
+
+	/* mask all PCI interrupts */
+	*(volatile unsigned long *) PCI_INT_MASK_REG |= 0xfff00000;
+
+	/* install the demultiplexer for the PCI cascade interrupt */
+	setup_irq(PCI_INT_TO_SIU, &pq2pci_irqaction);
+	return;
+}
+
+static int
+pq2pci_exclude_device(u_char bus, u_char devfn)
+{
+	return PCIBIOS_SUCCESSFUL;
+}
+
+/* PCI bus configuration registers.
+ */
+static void
+pq2ads_setup_pci(struct pci_controller *hose)
+{
+	__u32 val;
+	volatile cpm2_map_t *immap = cpm2_immr;
+	bd_t* binfo = (bd_t*) __res;
+	u32 sccr = immap->im_clkrst.car_sccr;
+	uint pci_div,freq,time;
+		/* PCI int lowest prio */
+	/* Each 4 bits is a device bus request	and the MS 4bits
+	 is highest priority */
+	/* Bus                4bit value
+	   ---                ----------
+	   CPM high      	0b0000
+	   CPM middle           0b0001
+	   CPM low       	0b0010
+	   PCI reguest          0b0011
+	   Reserved      	0b0100
+	   Reserved      	0b0101
+	   Internal Core     	0b0110
+	   External Master 1 	0b0111
+	   External Master 2 	0b1000
+	   External Master 3 	0b1001
+	   The rest are reserved
+	 */
+	immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x61207893;
+	/* park bus on core */
+	immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_CORE;
+	/*
+	 * Set up master windows that allow the CPU to access PCI space. These
+	 * windows are set up using the two SIU PCIBR registers.
+	 */
+
+	immap->im_memctl.memc_pcimsk0 = M82xx_PCI_PRIM_WND_SIZE;
+	immap->im_memctl.memc_pcibr0  = M82xx_PCI_PRIM_WND_BASE | PCIBR_ENABLE;
+
+#ifdef M82xx_PCI_SEC_WND_SIZE
+	immap->im_memctl.memc_pcimsk1 = M82xx_PCI_SEC_WND_SIZE;
+	immap->im_memctl.memc_pcibr1  = M82xx_PCI_SEC_WND_BASE | PCIBR_ENABLE;
+#endif
+
+#if defined CONFIG_ADS8272
+	immap->im_siu_conf.siu_82xx.sc_siumcr =
+		(immap->im_siu_conf.siu_82xx.sc_siumcr &
+		~(SIUMCR_BBD | SIUMCR_ESE | SIUMCR_PBSE |
+		SIUMCR_CDIS | SIUMCR_DPPC11 | SIUMCR_L2CPC11 |
+		SIUMCR_LBPC11 | SIUMCR_APPC11 |
+		SIUMCR_CS10PC11 | SIUMCR_BCTLC11 | SIUMCR_MMR11)) |
+		SIUMCR_DPPC11 | SIUMCR_L2CPC01 | SIUMCR_LBPC00 |
+		SIUMCR_APPC10 | SIUMCR_CS10PC00 |
+		SIUMCR_BCTLC00 | SIUMCR_MMR11 ;
+
+#elif defined CONFIG_PQ2FADS
+	/*
+	 * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]),
+	 * and local bus for PCI (SIUMCR [LBPC]).
+	 */
+	immap->im_siu_conf.siu_82xx.sc_siumcr = (immap->im_siu_conf.sc_siumcr &
+				~(SIUMCR_L2PC11 | SIUMCR_LBPC11 | SIUMCR_CS10PC11 | SIUMCR_APPC11) |
+				SIUMCR_BBD | SIUMCR_LBPC01 | SIUMCR_DPPC11 | SIUMCR_APPC10;
+#endif
+	/* Enable PCI  */
+	immap->im_pci.pci_gcr = cpu_to_le32(PCIGCR_PCI_BUS_EN);
+
+	pci_div = ( (sccr & SCCR_PCI_MODCK) ? 2 : 1) *
+			( ( (sccr & SCCR_PCIDF_MSK) >> SCCR_PCIDF_SHIFT) + 1);
+	freq = (uint)((2*binfo->bi_cpmfreq)/(pci_div));
+	time = (int)666666/freq;
+	/* due to PCI Local Bus spec, some devices needs to wait such a long
+	time after RST 	deassertion. More specifically, 0.508s for 66MHz & twice more for 33 */
+	printk("%s: The PCI bus is %d Mhz.\nWaiting %s after deasserting RST...\n",__FILE__,freq,
+	(time==1) ? "0.5 seconds":"1 second" );
+
+	{
+		int i;
+		for(i=0;i<(500*time);i++)
+			udelay(1000);
+	}
+
+	/* setup ATU registers */
+	immap->im_pci.pci_pocmr0 = cpu_to_le32(POCMR_ENABLE | POCMR_PCI_IO |
+				((~(M82xx_PCI_IO_SIZE - 1U)) >> POTA_ADDR_SHIFT));
+	immap->im_pci.pci_potar0 = cpu_to_le32(M82xx_PCI_LOWER_IO >> POTA_ADDR_SHIFT);
+	immap->im_pci.pci_pobar0 = cpu_to_le32(M82xx_PCI_IO_BASE >> POTA_ADDR_SHIFT);
+
+	/* Set-up non-prefetchable window */
+	immap->im_pci.pci_pocmr1 = cpu_to_le32(POCMR_ENABLE | ((~(M82xx_PCI_MMIO_SIZE-1U)) >> POTA_ADDR_SHIFT));
+	immap->im_pci.pci_potar1 = cpu_to_le32(M82xx_PCI_LOWER_MMIO >> POTA_ADDR_SHIFT);
+	immap->im_pci.pci_pobar1 = cpu_to_le32((M82xx_PCI_LOWER_MMIO - M82xx_PCI_MMIO_OFFSET) >> POTA_ADDR_SHIFT);
+
+	/* Set-up prefetchable window */
+	immap->im_pci.pci_pocmr2 = cpu_to_le32(POCMR_ENABLE |POCMR_PREFETCH_EN |
+		(~(M82xx_PCI_MEM_SIZE-1U) >> POTA_ADDR_SHIFT));
+	immap->im_pci.pci_potar2 = cpu_to_le32(M82xx_PCI_LOWER_MEM >> POTA_ADDR_SHIFT);
+	immap->im_pci.pci_pobar2 = cpu_to_le32((M82xx_PCI_LOWER_MEM - M82xx_PCI_MEM_OFFSET) >> POTA_ADDR_SHIFT);
+
+ 	/* Inbound transactions from PCI memory space */
+	immap->im_pci.pci_picmr0 = cpu_to_le32(PICMR_ENABLE | PICMR_PREFETCH_EN |
+					((~(M82xx_PCI_SLAVE_MEM_SIZE-1U)) >> PITA_ADDR_SHIFT));
+	immap->im_pci.pci_pibar0 = cpu_to_le32(M82xx_PCI_SLAVE_MEM_BUS  >> PITA_ADDR_SHIFT);
+	immap->im_pci.pci_pitar0 = cpu_to_le32(M82xx_PCI_SLAVE_MEM_LOCAL>> PITA_ADDR_SHIFT);
+
+#if defined CONFIG_ADS8272
+	/* PCI int highest prio */
+	immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x01236745;
+#elif defined CONFIG_PQ2FADS
+	immap->im_siu_conf.siu_82xx.sc_ppc_alrh = 0x03124567;
+#endif
+	/* park bus on PCI */
+	immap->im_siu_conf.siu_82xx.sc_ppc_acr = PPC_ACR_BUS_PARK_PCI;
+
+	/* Enable bus mastering and inbound memory transactions */
+	early_read_config_dword(hose, hose->first_busno, 0, PCI_COMMAND, &val);
+	val &= 0xffff0000;
+	val |= PCI_COMMAND_MEMORY|PCI_COMMAND_MASTER;
+	early_write_config_dword(hose, hose->first_busno, 0, PCI_COMMAND, val);
+
+}
+
+void __init pq2_find_bridges(void)
+{
+	extern int pci_assign_all_busses;
+	struct pci_controller * hose;
+	int host_bridge;
+
+	pci_assign_all_busses = 1;
+
+	hose = pcibios_alloc_controller();
+
+	if (!hose)
+		return;
+
+	ppc_md.pci_swizzle = common_swizzle;
+
+	hose->first_busno = 0;
+	hose->bus_offset = 0;
+	hose->last_busno = 0xff;
+
+#ifdef CONFIG_ADS8272
+	hose->set_cfg_type = 1;
+#endif
+
+	setup_m8260_indirect_pci(hose,
+				 (unsigned long)&cpm2_immr->im_pci.pci_cfg_addr,
+				 (unsigned long)&cpm2_immr->im_pci.pci_cfg_data);
+
+	/* Make sure it is a supported bridge */
+	early_read_config_dword(hose,
+				0,
+				PCI_DEVFN(0,0),
+				PCI_VENDOR_ID,
+				&host_bridge);
+	switch (host_bridge) {
+		case PCI_DEVICE_ID_MPC8265:
+			break;
+		case PCI_DEVICE_ID_MPC8272:
+			break;
+		default:
+			printk("Attempting to use unrecognized host bridge ID"
+				" 0x%08x.\n", host_bridge);
+			break;
+	}
+
+	pq2ads_setup_pci(hose);
+
+	hose->io_space.start =	M82xx_PCI_LOWER_IO;
+	hose->io_space.end = M82xx_PCI_UPPER_IO;
+	hose->mem_space.start = M82xx_PCI_LOWER_MEM;
+	hose->mem_space.end = M82xx_PCI_UPPER_MMIO;
+	hose->pci_mem_offset = M82xx_PCI_MEM_OFFSET;
+
+	isa_io_base =
+	(unsigned long) ioremap(M82xx_PCI_IO_BASE,
+					M82xx_PCI_IO_SIZE);
+	hose->io_base_virt = (void *) isa_io_base;
+
+	/* setup resources */
+	pci_init_resource(&hose->mem_resources[0],
+			M82xx_PCI_LOWER_MEM,
+			M82xx_PCI_UPPER_MEM,
+			IORESOURCE_MEM|IORESOURCE_PREFETCH, "PCI prefetchable memory");
+
+	pci_init_resource(&hose->mem_resources[1],
+			M82xx_PCI_LOWER_MMIO,
+			M82xx_PCI_UPPER_MMIO,
+			IORESOURCE_MEM, "PCI memory");
+
+	pci_init_resource(&hose->io_resource,
+			M82xx_PCI_LOWER_IO,
+			M82xx_PCI_UPPER_IO,
+			IORESOURCE_IO | 1, "PCI I/O");
+
+	ppc_md.pci_exclude_device = pq2pci_exclude_device;
+	hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
+
+	ppc_md.pci_map_irq = pq2pci_map_irq;
+	ppc_md.pcibios_fixup = NULL;
+	ppc_md.pcibios_fixup_bus = NULL;
+
+}
diff --git a/arch/ppc/syslib/m82xx_pci.h b/arch/ppc/syslib/m82xx_pci.h
new file mode 100644
index 00000000000..924f73f8e59
--- /dev/null
+++ b/arch/ppc/syslib/m82xx_pci.h
@@ -0,0 +1,92 @@
+
+#ifndef _PPC_KERNEL_M82XX_PCI_H
+#define _PPC_KERNEL_M82XX_PCI_H
+
+#include <asm/m8260_pci.h>
+/*
+ *   Local->PCI map (from CPU)                             controlled by
+ *   MPC826x master window
+ *
+ *   0xF6000000 - 0xF7FFFFFF    IO space
+ *   0x80000000 - 0xBFFFFFFF    CPU2PCI memory space       PCIBR0
+ *
+ *   0x80000000 - 0x9FFFFFFF    PCI Mem with prefetch      (Outbound ATU #1)
+ *   0xA0000000 - 0xBFFFFFFF    PCI Mem w/o  prefetch      (Outbound ATU #2)
+ *   0xF6000000 - 0xF7FFFFFF    32-bit PCI IO              (Outbound ATU #3)
+ *
+ *   PCI->Local map (from PCI)
+ *   MPC826x slave window                                  controlled by
+ *
+ *   0x00000000 - 0x07FFFFFF    MPC826x local memory       (Inbound ATU #1)
+ */
+
+/*
+ * Slave window that allows PCI masters to access MPC826x local memory.
+ * This window is set up using the first set of Inbound ATU registers
+ */
+
+#ifndef M82xx_PCI_SLAVE_MEM_LOCAL
+#define M82xx_PCI_SLAVE_MEM_LOCAL	(((struct bd_info *)__res)->bi_memstart)
+#define M82xx_PCI_SLAVE_MEM_BUS		(((struct bd_info *)__res)->bi_memstart)
+#define M82xx_PCI_SLAVE_MEM_SIZE	(((struct bd_info *)__res)->bi_memsize)
+#endif
+
+/*
+ * This is the window that allows the CPU to access PCI address space.
+ * It will be setup with the SIU PCIBR0 register. All three PCI master
+ * windows, which allow the CPU to access PCI prefetch, non prefetch,
+ * and IO space (see below), must all fit within this window.
+ */
+
+#ifndef M82xx_PCI_LOWER_MEM
+#define M82xx_PCI_LOWER_MEM		0x80000000
+#define M82xx_PCI_UPPER_MEM		0x9fffffff
+#define M82xx_PCI_MEM_OFFSET		0x00000000
+#define M82xx_PCI_MEM_SIZE		0x20000000
+#endif
+
+#ifndef M82xx_PCI_LOWER_MMIO
+#define M82xx_PCI_LOWER_MMIO		0xa0000000
+#define M82xx_PCI_UPPER_MMIO		0xafffffff
+#define M82xx_PCI_MMIO_OFFSET		0x00000000
+#define M82xx_PCI_MMIO_SIZE		0x20000000
+#endif
+
+#ifndef M82xx_PCI_LOWER_IO
+#define M82xx_PCI_LOWER_IO		0x00000000
+#define M82xx_PCI_UPPER_IO		0x01ffffff
+#define M82xx_PCI_IO_BASE		0xf6000000
+#define M82xx_PCI_IO_SIZE		0x02000000
+#endif
+
+#ifndef M82xx_PCI_PRIM_WND_SIZE
+#define M82xx_PCI_PRIM_WND_SIZE 	~(M82xx_PCI_IO_SIZE - 1U)
+#define M82xx_PCI_PRIM_WND_BASE		(M82xx_PCI_IO_BASE)
+#endif
+
+#ifndef M82xx_PCI_SEC_WND_SIZE
+#define M82xx_PCI_SEC_WND_SIZE 		~(M82xx_PCI_MEM_SIZE + M82xx_PCI_MMIO_SIZE - 1U)
+#define M82xx_PCI_SEC_WND_BASE 		(M82xx_PCI_LOWER_MEM)
+#endif
+
+#ifndef POTA_ADDR_SHIFT
+#define POTA_ADDR_SHIFT		12
+#endif
+
+#ifndef PITA_ADDR_SHIFT
+#define PITA_ADDR_SHIFT		12
+#endif
+
+#ifndef _IO_BASE
+#define _IO_BASE isa_io_base
+#endif
+
+#ifdef CONFIG_8260_PCI9
+struct pci_controller;
+extern void setup_m8260_indirect_pci(struct pci_controller* hose,
+					u32 cfg_addr, u32 cfg_data);
+#else
+#define setup_m8260_indirect_pci setup_indirect_pci
+#endif
+
+#endif /* _PPC_KERNEL_M8260_PCI_H */
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index 9d4ed68b580..000ba47c67c 100644
--- a/arch/ppc/syslib/open_pic.c
+++ b/arch/ppc/syslib/open_pic.c
@@ -275,7 +275,7 @@ static void __init openpic_enable_sie(void)
 }
 #endif
 
-#if defined(CONFIG_EPIC_SERIAL_MODE) || defined(CONFIG_PM)
+#if defined(CONFIG_EPIC_SERIAL_MODE)
 static void openpic_reset(void)
 {
 	openpic_setfield(&OpenPIC->Global.Global_Configuration0,
@@ -993,8 +993,6 @@ int openpic_resume(struct sys_device *sysdev)
 		return 0;
 	}
 
-	openpic_reset();
-
 	/* OpenPIC sometimes seem to need some time to be fully back up... */
 	do {
 		openpic_set_spurious(OPENPIC_VEC_SPURIOUS);
diff --git a/arch/ppc/syslib/ppc83xx_setup.c b/arch/ppc/syslib/ppc83xx_setup.c
index c28f9d67948..843cf8873e6 100644
--- a/arch/ppc/syslib/ppc83xx_setup.c
+++ b/arch/ppc/syslib/ppc83xx_setup.c
@@ -29,6 +29,7 @@
 #include <asm/mmu.h>
 #include <asm/ppc_sys.h>
 #include <asm/kgdb.h>
+#include <asm/delay.h>
 
 #include <syslib/ppc83xx_setup.h>
 
@@ -117,7 +118,34 @@ mpc83xx_early_serial_map(void)
 void
 mpc83xx_restart(char *cmd)
 {
+	volatile unsigned char __iomem *reg;
+	unsigned char tmp;
+
+	reg = ioremap(BCSR_PHYS_ADDR, BCSR_SIZE);
+
 	local_irq_disable();
+
+	/*
+	 * Unlock the BCSR bits so a PRST will update the contents.
+	 * Otherwise the reset asserts but doesn't clear.
+	 */
+	tmp = in_8(reg + BCSR_MISC_REG3_OFF);
+	tmp |= BCSR_MISC_REG3_CNFLOCK; /* low true, high false */
+	out_8(reg + BCSR_MISC_REG3_OFF, tmp);
+
+	/*
+	 * Trigger a reset via a low->high transition of the
+	 * PORESET bit.
+	 */
+	tmp = in_8(reg + BCSR_MISC_REG2_OFF);
+	tmp &= ~BCSR_MISC_REG2_PORESET;
+	out_8(reg + BCSR_MISC_REG2_OFF, tmp);
+
+	udelay(1);
+
+	tmp |= BCSR_MISC_REG2_PORESET;
+	out_8(reg + BCSR_MISC_REG2_OFF, tmp);
+
 	for(;;);
 }
 
diff --git a/arch/ppc/syslib/ppc85xx_setup.c b/arch/ppc/syslib/ppc85xx_setup.c
index 152c3ef1312..f3277f469e7 100644
--- a/arch/ppc/syslib/ppc85xx_setup.c
+++ b/arch/ppc/syslib/ppc85xx_setup.c
@@ -132,6 +132,12 @@ mpc85xx_halt(void)
 }
 
 #ifdef CONFIG_PCI
+
+#if defined(CONFIG_MPC8555_CDS)
+extern void mpc85xx_cds_enable_via(struct pci_controller *hose);
+extern void mpc85xx_cds_fixup_via(struct pci_controller *hose);
+#endif
+
 static void __init
 mpc85xx_setup_pci1(struct pci_controller *hose)
 {
@@ -302,8 +308,18 @@ mpc85xx_setup_hose(void)
 
 	ppc_md.pci_exclude_device = mpc85xx_exclude_device;
 
+#if defined(CONFIG_MPC8555_CDS)
+	/* Pre pciauto_bus_scan VIA init */
+	mpc85xx_cds_enable_via(hose_a);
+#endif
+
 	hose_a->last_busno = pciauto_bus_scan(hose_a, hose_a->first_busno);
 
+#if defined(CONFIG_MPC8555_CDS)
+	/* Post pciauto_bus_scan VIA fixup */
+	mpc85xx_cds_fixup_via(hose_a);
+#endif
+
 #ifdef CONFIG_85xx_PCI2
 	hose_b = pcibios_alloc_controller();
 
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index 6f79b7b9b44..bc53967a864 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -1881,6 +1881,12 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, unsigned long
 		     &getprop_rval, sizeof(getprop_rval));
 
 	/*
+	 * On pSeries, inform the firmware about our capabilities
+	 */
+	if (RELOC(of_platform) & PLATFORM_PSERIES)
+		prom_send_capabilities();
+
+	/*
 	 * On pSeries, copy the CPU hold code
 	 */
        	if (RELOC(of_platform) & PLATFORM_PSERIES)
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 3d54745108c..33364a7d2cd 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -325,9 +325,7 @@ int timer_interrupt(struct pt_regs * regs)
 
 	irq_enter();
 
-#ifndef CONFIG_PPC_ISERIES
 	profile_tick(CPU_PROFILING, regs);
-#endif
 
 	lpaca->lppaca.int_dword.fields.decr_int = 0;
 
diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index b89989de364..bd41e4286d0 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -2,10 +2,6 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-config FRAME_POINTER
-	bool
-	default y if DEBUG_INFO
-
 config PT_PROXY
 	bool "Enable ptrace proxy"
 	depends on XTERM_CHAN && DEBUG_INFO && MODE_TT
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c
index d43e9fab05a..f9e22198e01 100644
--- a/arch/um/drivers/random.c
+++ b/arch/um/drivers/random.c
@@ -1,5 +1,10 @@
-/* Much of this ripped from hw_random.c */
-
+/* Copyright (C) 2005 Jeff Dike <jdike@addtoit.com> */
+/* Much of this ripped from drivers/char/hw_random.c, see there for other
+ * copyright.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/miscdevice.h>
@@ -12,8 +17,6 @@
  */
 #define RNG_VERSION "1.0.0"
 #define RNG_MODULE_NAME "random"
-#define RNG_DRIVER_NAME   RNG_MODULE_NAME " virtual driver " RNG_VERSION
-#define PFX RNG_MODULE_NAME ": "
 
 #define RNG_MISCDEV_MINOR		183 /* official */
 
@@ -98,7 +101,7 @@ static int __init rng_init (void)
 
 	err = misc_register (&rng_miscdev);
 	if (err) {
-		printk (KERN_ERR PFX "misc device register failed\n");
+		printk (KERN_ERR RNG_MODULE_NAME ": misc device register failed\n");
 		goto err_out_cleanup_hw;
 	}
 
@@ -120,3 +123,6 @@ static void __exit rng_cleanup (void)
 
 module_init (rng_init);
 module_exit (rng_cleanup);
+
+MODULE_DESCRIPTION("UML Host Random Number Generator (RNG) driver");
+MODULE_LICENSE("GPL");
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index a2bac429f3d..b32a77010fb 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -22,7 +22,6 @@
 #include "init.h"
 #include "irq_user.h"
 #include "mconsole_kern.h"
-#include "2_5compat.h"
 
 static int ssl_version = 1;
 
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 361d0be342b..afbe1e71ed8 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -28,7 +28,6 @@
 #include "irq_user.h"
 #include "mconsole_kern.h"
 #include "init.h"
-#include "2_5compat.h"
 
 #define MAX_TTYS (16)
 
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 88f956c34fe..2a7f6892c55 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -49,7 +49,6 @@
 #include "irq_user.h"
 #include "irq_kern.h"
 #include "ubd_user.h"
-#include "2_5compat.h"
 #include "os.h"
 #include "mem.h"
 #include "mem_kern.h"
@@ -440,9 +439,9 @@ static int udb_setup(char *str)
 __setup("udb", udb_setup);
 __uml_help(udb_setup,
 "udb\n"
-"    This option is here solely to catch ubd -> udb typos, which can be\n\n"
-"    to impossible to catch visually unless you specifically look for\n\n"
-"    them.  The only result of any option starting with 'udb' is an error\n\n"
+"    This option is here solely to catch ubd -> udb typos, which can be\n"
+"    to impossible to catch visually unless you specifically look for\n"
+"    them.  The only result of any option starting with 'udb' is an error\n"
 "    in the boot output.\n\n"
 );
 
diff --git a/arch/um/include/2_5compat.h b/arch/um/include/2_5compat.h
deleted file mode 100644
index abdb015a4d7..00000000000
--- a/arch/um/include/2_5compat.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 
- * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#ifndef __2_5_COMPAT_H__
-#define __2_5_COMPAT_H__
-
-#define INIT_HARDSECT(arr, maj, sizes)
-
-#define SET_PRI(task) do ; while(0)
-
-#endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/include/sysrq.h b/arch/um/include/sysrq.h
index 2ce9423460b..c8d332b56b9 100644
--- a/arch/um/include/sysrq.h
+++ b/arch/um/include/sysrq.h
@@ -1,6 +1,7 @@
 #ifndef __UM_SYSRQ_H
 #define __UM_SYSRQ_H
 
-extern void show_trace(unsigned long *stack);
+struct task_struct;
+extern void show_trace(struct task_struct* task, unsigned long *stack);
 
 #endif
diff --git a/arch/um/kernel/exec_kern.c b/arch/um/kernel/exec_kern.c
index 49ddabe69be..efd222ffe20 100644
--- a/arch/um/kernel/exec_kern.c
+++ b/arch/um/kernel/exec_kern.c
@@ -16,7 +16,6 @@
 #include "kern.h"
 #include "irq_user.h"
 #include "tlb.h"
-#include "2_5compat.h"
 #include "os.h"
 #include "time_user.h"
 #include "choose-mode.h"
diff --git a/arch/um/kernel/initrd_kern.c b/arch/um/kernel/initrd_kern.c
deleted file mode 100644
index fc568af468b..00000000000
--- a/arch/um/kernel/initrd_kern.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include "linux/init.h"
-#include "linux/bootmem.h"
-#include "linux/initrd.h"
-#include "asm/types.h"
-#include "user_util.h"
-#include "kern_util.h"
-#include "initrd.h"
-#include "init.h"
-#include "os.h"
-
-/* Changed by uml_initrd_setup, which is a setup */
-static char *initrd __initdata = NULL;
-
-static int __init read_initrd(void)
-{
-	void *area;
-	long long size;
-	int err;
-
-	if(initrd == NULL) return 0;
-	err = os_file_size(initrd, &size);
-	if(err) return 0;
-	area = alloc_bootmem(size);
-	if(area == NULL) return 0;
-	if(load_initrd(initrd, area, size) == -1) return 0;
-	initrd_start = (unsigned long) area;
-	initrd_end = initrd_start + size;
-	return 0;
-}
-
-__uml_postsetup(read_initrd);
-
-static int __init uml_initrd_setup(char *line, int *add)
-{
-	initrd = line;
-	return 0;
-}
-
-__uml_setup("initrd=", uml_initrd_setup, 
-"initrd=<initrd image>\n"
-"    This is used to boot UML from an initrd image.  The argument is the\n"
-"    name of the file containing the image.\n\n"
-);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/initrd_user.c b/arch/um/kernel/initrd_user.c
deleted file mode 100644
index cb90681e151..00000000000
--- a/arch/um/kernel/initrd_user.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-
-#include "user_util.h"
-#include "kern_util.h"
-#include "user.h"
-#include "initrd.h"
-#include "os.h"
-
-int load_initrd(char *filename, void *buf, int size)
-{
-	int fd, n;
-
-	fd = os_open_file(filename, of_read(OPENFLAGS()), 0);
-	if(fd < 0){
-		printk("Opening '%s' failed - err = %d\n", filename, -fd);
-		return(-1);
-	}
-	n = os_read_file(fd, buf, size);
-	if(n != size){
-		printk("Read of %d bytes from '%s' failed, err = %d\n", size,
-		       filename, -n);
-		return(-1);
-	}
-
-	os_close_file(fd);
-	return(0);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c
index a17c49703f9..e42e6364ca1 100644
--- a/arch/um/kernel/main.c
+++ b/arch/um/kernel/main.c
@@ -71,7 +71,7 @@ static __init void do_uml_initcalls(void)
 
 static void last_ditch_exit(int sig)
 {
-	CHOOSE_MODE(kmalloc_ok = 0, (void) 0);
+        kmalloc_ok = 0;
 	signal(SIGINT, SIG_DFL);
 	signal(SIGTERM, SIG_DFL);
 	signal(SIGHUP, SIG_DFL);
@@ -87,7 +87,7 @@ int main(int argc, char **argv, char **envp)
 {
 	char **new_argv;
 	sigset_t mask;
-	int ret, i;
+	int ret, i, err;
 
 	/* Enable all signals except SIGIO - in some environments, we can
 	 * enter with some signals blocked
@@ -160,27 +160,29 @@ int main(int argc, char **argv, char **envp)
 	 */
 	change_sig(SIGPROF, 0);
 
-	/* Reboot */
-	if(ret){
-		int err;
-
-		printf("\n");
+        /* This signal stuff used to be in the reboot case.  However,
+         * sometimes a SIGVTALRM can come in when we're halting (reproducably
+         * when writing out gcov information, presumably because that takes
+         * some time) and cause a segfault.
+         */
 
-		/* stop timers and set SIG*ALRM to be ignored */
-		disable_timer();
+        /* stop timers and set SIG*ALRM to be ignored */
+        disable_timer();
 
-		/* disable SIGIO for the fds and set SIGIO to be ignored */
-		err = deactivate_all_fds();
-		if(err)
-			printf("deactivate_all_fds failed, errno = %d\n",
-			       -err);
+        /* disable SIGIO for the fds and set SIGIO to be ignored */
+        err = deactivate_all_fds();
+        if(err)
+                printf("deactivate_all_fds failed, errno = %d\n", -err);
 
-		/* Let any pending signals fire now.  This ensures
-		 * that they won't be delivered after the exec, when
-		 * they are definitely not expected.
-		 */
-		unblock_signals();
+        /* Let any pending signals fire now.  This ensures
+         * that they won't be delivered after the exec, when
+         * they are definitely not expected.
+         */
+        unblock_signals();
 
+	/* Reboot */
+	if(ret){
+		printf("\n");
 		execvp(new_argv[0], new_argv);
 		perror("Failed to exec kernel");
 		ret = 1;
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index c1adf7ba3fd..804c6bbdf67 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -43,7 +43,6 @@
 #include "tlb.h"
 #include "frame_kern.h"
 #include "sigcontext.h"
-#include "2_5compat.h"
 #include "os.h"
 #include "mode.h"
 #include "mode_kern.h"
@@ -55,18 +54,6 @@
  */
 struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } };
 
-struct task_struct *get_task(int pid, int require)
-{
-        struct task_struct *ret;
-
-        read_lock(&tasklist_lock);
-	ret = find_task_by_pid(pid);
-        read_unlock(&tasklist_lock);
-
-        if(require && (ret == NULL)) panic("get_task couldn't find a task\n");
-        return(ret);
-}
-
 int external_pid(void *t)
 {
 	struct task_struct *task = t ? t : current;
@@ -189,7 +176,6 @@ void default_idle(void)
 
 	while(1){
 		/* endless idle loop with no priority at all */
-		SET_PRI(current);
 
 		/*
 		 * although we are an idle CPU, we do not want to
@@ -212,11 +198,6 @@ int page_size(void)
 	return(PAGE_SIZE);
 }
 
-unsigned long page_mask(void)
-{
-	return(PAGE_MASK);
-}
-
 void *um_virt_to_phys(struct task_struct *task, unsigned long addr, 
 		      pte_t *pte_out)
 {
@@ -349,11 +330,6 @@ char *uml_strdup(char *string)
 	return(new);
 }
 
-void *get_init_task(void)
-{
-	return(&init_thread_union.thread_info.task);
-}
-
 int copy_to_user_proc(void __user *to, void *from, int size)
 {
 	return(copy_to_user(to, from, size));
@@ -480,15 +456,3 @@ unsigned long arch_align_stack(unsigned long sp)
 	return sp & ~0xf;
 }
 #endif
-
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 2925e15324d..71af4d50389 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -322,11 +322,9 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit)
 					    UPT_SYSCALL_ARG2(regs),
 					    UPT_SYSCALL_ARG3(regs),
 					    UPT_SYSCALL_ARG4(regs));
-		else {
-                        int res = UPT_SYSCALL_RET(regs);
-			audit_syscall_exit(current, AUDITSC_RESULT(res),
-                                           res);
-                }
+		else audit_syscall_exit(current,
+                                        AUDITSC_RESULT(UPT_SYSCALL_RET(regs)),
+                                        UPT_SYSCALL_RET(regs));
 	}
 
 	/* Fake a debug trap */
@@ -356,14 +354,3 @@ void syscall_trace(union uml_pt_regs *regs, int entryexit)
 		current->exit_code = 0;
 	}
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index e630438f9e7..f80850091e7 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -3,6 +3,7 @@
  * Licensed under the GPL
  */
 
+#include "linux/config.h"
 #include "linux/sched.h"
 #include "linux/kernel.h"
 #include "linux/module.h"
@@ -12,14 +13,14 @@
 #include "sysrq.h"
 #include "user_util.h"
 
-void show_trace(unsigned long * stack)
+/* Catch non-i386 SUBARCH's. */
+#if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT)
+void show_trace(struct task_struct *task, unsigned long * stack)
 {
-	/* XXX: Copy the CONFIG_FRAME_POINTER stack-walking backtrace from
-	 * arch/i386/kernel/traps.c, and then move this to sys-i386/sysrq.c.*/
         unsigned long addr;
 
         if (!stack) {
-                stack = (unsigned long*) &stack;
+		stack = (unsigned long*) &stack;
 		WARN_ON(1);
 	}
 
@@ -35,6 +36,7 @@ void show_trace(unsigned long * stack)
         }
         printk("\n");
 }
+#endif
 
 /*
  * stack dumps generator - this is used by arch-independent code.
@@ -44,7 +46,7 @@ void dump_stack(void)
 {
 	unsigned long stack;
 
-	show_trace(&stack);
+	show_trace(current, &stack);
 }
 EXPORT_SYMBOL(dump_stack);
 
@@ -59,7 +61,11 @@ void show_stack(struct task_struct *task, unsigned long *esp)
 	int i;
 
 	if (esp == NULL) {
-		if (task != current) {
+		if (task != current && task != NULL) {
+			/* XXX: Isn't this bogus? I.e. isn't this the
+			 * *userspace* stack of this task? If not so, use this
+			 * even when task == current (as in i386).
+			 */
 			esp = (unsigned long *) KSTK_ESP(task);
 			/* Which one? No actual difference - just coding style.*/
 			//esp = (unsigned long *) PT_REGS_IP(&task->thread.regs);
@@ -77,5 +83,6 @@ void show_stack(struct task_struct *task, unsigned long *esp)
 		printk("%08lx ", *stack++);
 	}
 
-	show_trace(esp);
+	printk("Call Trace: \n");
+	show_trace(current, esp);
 }
diff --git a/arch/um/kernel/trap_kern.c b/arch/um/kernel/trap_kern.c
index 1de22d8a313..c20aef12059 100644
--- a/arch/um/kernel/trap_kern.c
+++ b/arch/um/kernel/trap_kern.c
@@ -23,7 +23,6 @@
 #include "kern.h"
 #include "chan_kern.h"
 #include "mconsole_kern.h"
-#include "2_5compat.h"
 #include "mem.h"
 #include "mem_kern.h"
 
diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index df810ca8fc1..776310fd5b8 100644
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -32,10 +32,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
 	unsigned long flags;
 	int err, vtalrm, alrm, prof, cpu;
 	char c;
-	/* jailing and SMP are incompatible, so this doesn't need to be 
-	 * made per-cpu 
-	 */
-	static int reading;
 
 	from = prev;
 	to = next;
@@ -59,13 +55,11 @@ void *switch_to_tt(void *prev, void *next, void *last)
 	c = 0;
 	set_current(to);
 
-	reading = 0;
 	err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c));
 	if(err != sizeof(c))
 		panic("write of switch_pipe failed, err = %d", -err);
 
-	reading = 1;
-        if(from->thread.mode.tt.switch_pipe[0] == -1)
+	if(from->thread.mode.tt.switch_pipe[0] == -1)
 		os_kill_process(os_getpid(), 0);
 
 	err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, sizeof(c));
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 4d10ec372a6..418427107b2 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -111,12 +111,6 @@ struct seq_operations cpuinfo_op = {
 	.show	= show_cpuinfo,
 };
 
-pte_t * __bad_pagetable(void)
-{
-	panic("Someone should implement __bad_pagetable");
-	return(NULL);
-}
-
 /* Set in linux_main */
 unsigned long host_task_size;
 unsigned long task_size;
diff --git a/arch/um/sys-i386/sysrq.c b/arch/um/sys-i386/sysrq.c
index 281fc7b8ca0..e3706d15c4f 100644
--- a/arch/um/sys-i386/sysrq.c
+++ b/arch/um/sys-i386/sysrq.c
@@ -3,12 +3,15 @@
  * Licensed under the GPL
  */
 
+#include "linux/config.h"
 #include "linux/kernel.h"
 #include "linux/smp.h"
 #include "linux/sched.h"
+#include "linux/kallsyms.h"
 #include "asm/ptrace.h"
 #include "sysrq.h"
 
+/* This is declared by <linux/sched.h> */
 void show_regs(struct pt_regs *regs)
 {
         printk("\n");
@@ -31,5 +34,80 @@ void show_regs(struct pt_regs *regs)
 	       0xffff & PT_REGS_DS(regs), 
 	       0xffff & PT_REGS_ES(regs));
 
-        show_trace((unsigned long *) &regs);
+        show_trace(NULL, (unsigned long *) &regs);
 }
+
+/* Copied from i386. */
+static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
+{
+	return	p > (void *)tinfo &&
+		p < (void *)tinfo + THREAD_SIZE - 3;
+}
+
+/* Adapted from i386 (we also print the address we read from). */
+static inline unsigned long print_context_stack(struct thread_info *tinfo,
+				unsigned long *stack, unsigned long ebp)
+{
+	unsigned long addr;
+
+#ifdef CONFIG_FRAME_POINTER
+	while (valid_stack_ptr(tinfo, (void *)ebp)) {
+		addr = *(unsigned long *)(ebp + 4);
+		printk("%08lx:  [<%08lx>]", ebp + 4, addr);
+		print_symbol(" %s", addr);
+		printk("\n");
+		ebp = *(unsigned long *)ebp;
+	}
+#else
+	while (valid_stack_ptr(tinfo, stack)) {
+		addr = *stack;
+		if (__kernel_text_address(addr)) {
+			printk("%08lx:  [<%08lx>]", (unsigned long) stack, addr);
+			print_symbol(" %s", addr);
+			printk("\n");
+		}
+		stack++;
+	}
+#endif
+	return ebp;
+}
+
+void show_trace(struct task_struct* task, unsigned long * stack)
+{
+	unsigned long ebp;
+	struct thread_info *context;
+
+	/* Turn this into BUG_ON if possible. */
+	if (!stack) {
+		stack = (unsigned long*) &stack;
+		printk("show_trace: got NULL stack, implicit assumption task == current");
+		WARN_ON(1);
+	}
+
+	if (!task)
+		task = current;
+
+	if (task != current) {
+		//ebp = (unsigned long) KSTK_EBP(task);
+		/* Which one? No actual difference - just coding style.*/
+		ebp = (unsigned long) PT_REGS_EBP(&task->thread.regs);
+	} else {
+		asm ("movl %%ebp, %0" : "=r" (ebp) : );
+	}
+
+	context = (struct thread_info *)
+		((unsigned long)stack & (~(THREAD_SIZE - 1)));
+	print_context_stack(context, stack, ebp);
+
+	/*while (((long) stack & (THREAD_SIZE-1)) != 0) {
+		addr = *stack;
+		if (__kernel_text_address(addr)) {
+			printk("%08lx:	[<%08lx>]", (unsigned long) stack, addr);
+			print_symbol(" %s", addr);
+			printk("\n");
+		}
+		stack++;
+	}*/
+	printk("\n");
+}
+
diff --git a/arch/um/sys-ppc/sysrq.c b/arch/um/sys-ppc/sysrq.c
index 82d6e9335bb..2f816f1a0ff 100644
--- a/arch/um/sys-ppc/sysrq.c
+++ b/arch/um/sys-ppc/sysrq.c
@@ -27,17 +27,5 @@ void show_regs(struct pt_regs_subarch *regs)
                 0xffff & regs->xds, 0xffff & regs->xes);
 #endif
 
-        show_trace(&regs->gpr[1]);
+        show_trace(current, &regs->gpr[1]);
 }
-
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c
index d4a59657fb9..6f44f40204e 100644
--- a/arch/um/sys-x86_64/syscalls.c
+++ b/arch/um/sys-x86_64/syscalls.c
@@ -133,23 +133,27 @@ static long arch_prctl_tt(int code, unsigned long addr)
 
 #ifdef CONFIG_MODE_SKAS
 
+/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */
 static long arch_prctl_skas(int code, unsigned long addr)
 {
 	long ret = 0;
 
 	switch(code){
-	case ARCH_SET_GS:
-		current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr;
-		break;
 	case ARCH_SET_FS:
 		current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr;
 		break;
+	case ARCH_SET_GS:
+		current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr;
+		break;
 	case ARCH_GET_FS:
-		ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr);
+		ret = put_user(current->thread.regs.regs.skas.
+				regs[FS_BASE / sizeof(unsigned long)],
+				(unsigned long __user *)addr);
 	        break;
 	case ARCH_GET_GS:
-		ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \
-long)], &addr);
+		ret = put_user(current->thread.regs.regs.skas.
+				regs[GS_BASE / sizeof(unsigned long)],
+				(unsigned long __user *)addr);
 	        break;
 	default:
 		ret = -EINVAL;
diff --git a/arch/um/sys-x86_64/sysrq.c b/arch/um/sys-x86_64/sysrq.c
index ddf74691a61..d0a25af19a5 100644
--- a/arch/um/sys-x86_64/sysrq.c
+++ b/arch/um/sys-x86_64/sysrq.c
@@ -36,14 +36,5 @@ void __show_regs(struct pt_regs * regs)
 void show_regs(struct pt_regs *regs)
 {
 	__show_regs(regs);
-	show_trace((unsigned long *) &regs);
+	show_trace(current, (unsigned long *) &regs);
 }
-
-/* Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 0f430d9d363..289f448ac89 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -305,6 +305,7 @@ config HPET_TIMER
 
 config X86_PM_TIMER
 	bool "PM timer"
+	depends on ACPI
 	default y
 	help
 	  Support the ACPI PM timer for time keeping. This is slow,
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 80e9b498c44..afd87e64d0a 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -37,6 +37,7 @@
 #include <asm/desc.h>
 #include <asm/proto.h>
 #include <asm/mach_apic.h>
+#include <asm/acpi.h>
 
 #define __apicdebuginit  __init
 
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c
index f86d9db94bf..61a63be6b29 100644
--- a/arch/x86_64/kernel/mpparse.c
+++ b/arch/x86_64/kernel/mpparse.c
@@ -30,6 +30,7 @@
 #include <asm/pgalloc.h>
 #include <asm/io_apic.h>
 #include <asm/proto.h>
+#include <asm/acpi.h>
 
 /* Have we found an MP table */
 int smp_found_config;
diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c
index 3fdcdba0fec..429c0269dc4 100644
--- a/arch/x86_64/kernel/signal.c
+++ b/arch/x86_64/kernel/signal.c
@@ -28,6 +28,7 @@
 #include <asm/uaccess.h>
 #include <asm/i387.h>
 #include <asm/proto.h>
+#include <asm/ia32_unistd.h>
 
 /* #define DEBUG_SIG 1 */
 
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 735b6767c8e..fb8c809b4cd 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -27,7 +27,9 @@
 #include <linux/bcd.h>
 #include <linux/kallsyms.h>
 #include <linux/acpi.h>
+#ifdef CONFIG_ACPI
 #include <acpi/achware.h>	/* for PM timer frequency */
+#endif
 #include <asm/8253pit.h>
 #include <asm/pgtable.h>
 #include <asm/vsyscall.h>
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index fcca26c89bb..38dd9ffbe8b 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -488,6 +488,20 @@ static int viocd_packet(struct cdrom_device_info *cdi,
 					 & (CDC_DVD_RAM | CDC_RAM)) != 0;
 		}
 		break;
+	case GPCMD_GET_CONFIGURATION:
+		if (cgc->cmd[3] == CDF_RWRT) {
+			struct rwrt_feature_desc *rfd = (struct rwrt_feature_desc *)(cgc->buffer + sizeof(struct feature_header));
+
+			if ((buflen >=
+			     (sizeof(struct feature_header) + sizeof(*rfd))) &&
+			    (cdi->ops->capability & ~cdi->mask
+			     & (CDC_DVD_RAM | CDC_RAM))) {
+				rfd->feature_code = cpu_to_be16(CDF_RWRT);
+				rfd->curr = 1;
+				ret = 0;
+			}
+		}
+		break;
 	default:
 		if (cgc->sense) {
 			/* indicate Unknown code */
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 95882bb1950..60c9be99c6d 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -46,6 +46,10 @@ config CPU_FREQ_STAT_DETAILS
          This will show detail CPU frequency translation table in sysfs file
          system
 
+# Note that it is not currently possible to set the other governors (such as ondemand)
+# as the default, since if they fail to initialise, cpufreq will be
+# left in an undefined state.
+
 choice
 	prompt "Default CPUFreq governor"
 	default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
@@ -115,4 +119,24 @@ config CPU_FREQ_GOV_ONDEMAND
 
 	  If in doubt, say N.
 
+config CPU_FREQ_GOV_CONSERVATIVE
+	tristate "'conservative' cpufreq governor"
+	depends on CPU_FREQ
+	help
+	  'conservative' - this driver is rather similar to the 'ondemand'
+	  governor both in its source code and its purpose, the difference is
+	  its optimisation for better suitability in a battery powered
+	  environment.  The frequency is gracefully increased and decreased
+	  rather than jumping to 100% when speed is required.
+
+	  If you have a desktop machine then you should really be considering
+	  the 'ondemand' governor instead, however if you are using a laptop,
+	  PDA or even an AMD64 based computer (due to the unacceptable
+	  step-by-step latency issues between the minimum and maximum frequency
+	  transitions in the CPU) you will probably want to use this governor.
+
+	  For details, take a look at linux/Documentation/cpu-freq.
+
+	  If in doubt, say N.
+
 endif	# CPU_FREQ
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 67b16e5a41a..71fc3b4173f 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_CPU_FREQ_GOV_PERFORMANCE)	+= cpufreq_performance.o
 obj-$(CONFIG_CPU_FREQ_GOV_POWERSAVE)	+= cpufreq_powersave.o
 obj-$(CONFIG_CPU_FREQ_GOV_USERSPACE)	+= cpufreq_userspace.o
 obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND)	+= cpufreq_ondemand.o
+obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE)	+= cpufreq_conservative.o
 
 # CPUfreq cross-arch helpers
 obj-$(CONFIG_CPU_FREQ_TABLE)		+= freq_table.o
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 8e561313d09..03b5fb2ddcf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -258,7 +258,7 @@ void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state)
 			    (likely(cpufreq_cpu_data[freqs->cpu]->cur)) &&
 			    (unlikely(freqs->old != cpufreq_cpu_data[freqs->cpu]->cur)))
 			{
-				printk(KERN_WARNING "Warning: CPU frequency is %u, "
+				dprintk(KERN_WARNING "Warning: CPU frequency is %u, "
 				       "cpufreq assumed %u kHz.\n", freqs->old, cpufreq_cpu_data[freqs->cpu]->cur);
 				freqs->old = cpufreq_cpu_data[freqs->cpu]->cur;
 			}
@@ -814,7 +814,7 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq, unsigne
 {
 	struct cpufreq_freqs freqs;
 
-	printk(KERN_WARNING "Warning: CPU frequency out of sync: cpufreq and timing "
+	dprintk(KERN_WARNING "Warning: CPU frequency out of sync: cpufreq and timing "
 	       "core thinks of %u, is %u kHz.\n", old_freq, new_freq);
 
 	freqs.cpu = cpu;
@@ -923,7 +923,7 @@ static int cpufreq_suspend(struct sys_device * sysdev, u32 state)
 		struct cpufreq_freqs freqs;
 
 		if (!(cpufreq_driver->flags & CPUFREQ_PM_NO_WARN))
-			printk(KERN_DEBUG "Warning: CPU frequency is %u, "
+			dprintk(KERN_DEBUG "Warning: CPU frequency is %u, "
 			       "cpufreq assumed %u kHz.\n",
 			       cur_freq, cpu_policy->cur);
 
@@ -1004,7 +1004,7 @@ static int cpufreq_resume(struct sys_device * sysdev)
 			struct cpufreq_freqs freqs;
 
 			if (!(cpufreq_driver->flags & CPUFREQ_PM_NO_WARN))
-				printk(KERN_WARNING "Warning: CPU frequency"
+				dprintk(KERN_WARNING "Warning: CPU frequency"
 				       "is %u, cpufreq assumed %u kHz.\n",
 				       cur_freq, cpu_policy->cur);
 
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
new file mode 100644
index 00000000000..e1df376e709
--- /dev/null
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -0,0 +1,586 @@
+/*
+ *  drivers/cpufreq/cpufreq_conservative.c
+ *
+ *  Copyright (C)  2001 Russell King
+ *            (C)  2003 Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>.
+ *                      Jun Nakajima <jun.nakajima@intel.com>
+ *            (C)  2004 Alexander Clouter <alex-kernel@digriz.org.uk>
+ *
+ * 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/module.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ctype.h>
+#include <linux/cpufreq.h>
+#include <linux/sysctl.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/sysfs.h>
+#include <linux/sched.h>
+#include <linux/kmod.h>
+#include <linux/workqueue.h>
+#include <linux/jiffies.h>
+#include <linux/kernel_stat.h>
+#include <linux/percpu.h>
+
+/*
+ * dbs is used in this file as a shortform for demandbased switching
+ * It helps to keep variable names smaller, simpler
+ */
+
+#define DEF_FREQUENCY_UP_THRESHOLD		(80)
+#define MIN_FREQUENCY_UP_THRESHOLD		(0)
+#define MAX_FREQUENCY_UP_THRESHOLD		(100)
+
+#define DEF_FREQUENCY_DOWN_THRESHOLD		(20)
+#define MIN_FREQUENCY_DOWN_THRESHOLD		(0)
+#define MAX_FREQUENCY_DOWN_THRESHOLD		(100)
+
+/* 
+ * The polling frequency of this governor depends on the capability of 
+ * the processor. Default polling frequency is 1000 times the transition
+ * latency of the processor. The governor will work on any processor with 
+ * transition latency <= 10mS, using appropriate sampling 
+ * rate.
+ * For CPUs with transition latency > 10mS (mostly drivers with CPUFREQ_ETERNAL)
+ * this governor will not work.
+ * All times here are in uS.
+ */
+static unsigned int 				def_sampling_rate;
+#define MIN_SAMPLING_RATE			(def_sampling_rate / 2)
+#define MAX_SAMPLING_RATE			(500 * def_sampling_rate)
+#define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER	(100000)
+#define DEF_SAMPLING_DOWN_FACTOR		(5)
+#define TRANSITION_LATENCY_LIMIT		(10 * 1000)
+
+static void do_dbs_timer(void *data);
+
+struct cpu_dbs_info_s {
+	struct cpufreq_policy 	*cur_policy;
+	unsigned int 		prev_cpu_idle_up;
+	unsigned int 		prev_cpu_idle_down;
+	unsigned int 		enable;
+};
+static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
+
+static unsigned int dbs_enable;	/* number of CPUs using this policy */
+
+static DECLARE_MUTEX 	(dbs_sem);
+static DECLARE_WORK	(dbs_work, do_dbs_timer, NULL);
+
+struct dbs_tuners {
+	unsigned int 		sampling_rate;
+	unsigned int		sampling_down_factor;
+	unsigned int		up_threshold;
+	unsigned int		down_threshold;
+	unsigned int		ignore_nice;
+	unsigned int		freq_step;
+};
+
+static struct dbs_tuners dbs_tuners_ins = {
+	.up_threshold 		= DEF_FREQUENCY_UP_THRESHOLD,
+	.down_threshold 	= DEF_FREQUENCY_DOWN_THRESHOLD,
+	.sampling_down_factor 	= DEF_SAMPLING_DOWN_FACTOR,
+};
+
+static inline unsigned int get_cpu_idle_time(unsigned int cpu)
+{
+	return	kstat_cpu(cpu).cpustat.idle +
+		kstat_cpu(cpu).cpustat.iowait +
+		( !dbs_tuners_ins.ignore_nice ? 
+		  kstat_cpu(cpu).cpustat.nice :
+		  0);
+}
+
+/************************** sysfs interface ************************/
+static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
+{
+	return sprintf (buf, "%u\n", MAX_SAMPLING_RATE);
+}
+
+static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
+{
+	return sprintf (buf, "%u\n", MIN_SAMPLING_RATE);
+}
+
+#define define_one_ro(_name) 					\
+static struct freq_attr _name =  				\
+__ATTR(_name, 0444, show_##_name, NULL)
+
+define_one_ro(sampling_rate_max);
+define_one_ro(sampling_rate_min);
+
+/* cpufreq_conservative Governor Tunables */
+#define show_one(file_name, object)					\
+static ssize_t show_##file_name						\
+(struct cpufreq_policy *unused, char *buf)				\
+{									\
+	return sprintf(buf, "%u\n", dbs_tuners_ins.object);		\
+}
+show_one(sampling_rate, sampling_rate);
+show_one(sampling_down_factor, sampling_down_factor);
+show_one(up_threshold, up_threshold);
+show_one(down_threshold, down_threshold);
+show_one(ignore_nice, ignore_nice);
+show_one(freq_step, freq_step);
+
+static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused, 
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+	ret = sscanf (buf, "%u", &input);
+	if (ret != 1 )
+		return -EINVAL;
+
+	down(&dbs_sem);
+	dbs_tuners_ins.sampling_down_factor = input;
+	up(&dbs_sem);
+
+	return count;
+}
+
+static ssize_t store_sampling_rate(struct cpufreq_policy *unused, 
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+	ret = sscanf (buf, "%u", &input);
+
+	down(&dbs_sem);
+	if (ret != 1 || input > MAX_SAMPLING_RATE || input < MIN_SAMPLING_RATE) {
+		up(&dbs_sem);
+		return -EINVAL;
+	}
+
+	dbs_tuners_ins.sampling_rate = input;
+	up(&dbs_sem);
+
+	return count;
+}
+
+static ssize_t store_up_threshold(struct cpufreq_policy *unused, 
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+	ret = sscanf (buf, "%u", &input);
+
+	down(&dbs_sem);
+	if (ret != 1 || input > MAX_FREQUENCY_UP_THRESHOLD || 
+			input < MIN_FREQUENCY_UP_THRESHOLD ||
+			input <= dbs_tuners_ins.down_threshold) {
+		up(&dbs_sem);
+		return -EINVAL;
+	}
+
+	dbs_tuners_ins.up_threshold = input;
+	up(&dbs_sem);
+
+	return count;
+}
+
+static ssize_t store_down_threshold(struct cpufreq_policy *unused, 
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+	ret = sscanf (buf, "%u", &input);
+
+	down(&dbs_sem);
+	if (ret != 1 || input > MAX_FREQUENCY_DOWN_THRESHOLD || 
+			input < MIN_FREQUENCY_DOWN_THRESHOLD ||
+			input >= dbs_tuners_ins.up_threshold) {
+		up(&dbs_sem);
+		return -EINVAL;
+	}
+
+	dbs_tuners_ins.down_threshold = input;
+	up(&dbs_sem);
+
+	return count;
+}
+
+static ssize_t store_ignore_nice(struct cpufreq_policy *policy,
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+
+	unsigned int j;
+	
+	ret = sscanf (buf, "%u", &input);
+	if ( ret != 1 )
+		return -EINVAL;
+
+	if ( input > 1 )
+		input = 1;
+	
+	down(&dbs_sem);
+	if ( input == dbs_tuners_ins.ignore_nice ) { /* nothing to do */
+		up(&dbs_sem);
+		return count;
+	}
+	dbs_tuners_ins.ignore_nice = input;
+
+	/* we need to re-evaluate prev_cpu_idle_up and prev_cpu_idle_down */
+	for_each_online_cpu(j) {
+		struct cpu_dbs_info_s *j_dbs_info;
+		j_dbs_info = &per_cpu(cpu_dbs_info, j);
+		j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(j);
+		j_dbs_info->prev_cpu_idle_down = j_dbs_info->prev_cpu_idle_up;
+	}
+	up(&dbs_sem);
+
+	return count;
+}
+
+static ssize_t store_freq_step(struct cpufreq_policy *policy,
+		const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+
+	ret = sscanf (buf, "%u", &input);
+
+	if ( ret != 1 )
+		return -EINVAL;
+
+	if ( input > 100 )
+		input = 100;
+	
+	/* no need to test here if freq_step is zero as the user might actually
+	 * want this, they would be crazy though :) */
+	down(&dbs_sem);
+	dbs_tuners_ins.freq_step = input;
+	up(&dbs_sem);
+
+	return count;
+}
+
+#define define_one_rw(_name) \
+static struct freq_attr _name = \
+__ATTR(_name, 0644, show_##_name, store_##_name)
+
+define_one_rw(sampling_rate);
+define_one_rw(sampling_down_factor);
+define_one_rw(up_threshold);
+define_one_rw(down_threshold);
+define_one_rw(ignore_nice);
+define_one_rw(freq_step);
+
+static struct attribute * dbs_attributes[] = {
+	&sampling_rate_max.attr,
+	&sampling_rate_min.attr,
+	&sampling_rate.attr,
+	&sampling_down_factor.attr,
+	&up_threshold.attr,
+	&down_threshold.attr,
+	&ignore_nice.attr,
+	&freq_step.attr,
+	NULL
+};
+
+static struct attribute_group dbs_attr_group = {
+	.attrs = dbs_attributes,
+	.name = "conservative",
+};
+
+/************************** sysfs end ************************/
+
+static void dbs_check_cpu(int cpu)
+{
+	unsigned int idle_ticks, up_idle_ticks, down_idle_ticks;
+	unsigned int freq_step;
+	unsigned int freq_down_sampling_rate;
+	static int down_skip[NR_CPUS];
+	static int requested_freq[NR_CPUS];
+	static unsigned short init_flag = 0;
+	struct cpu_dbs_info_s *this_dbs_info;
+	struct cpu_dbs_info_s *dbs_info;
+
+	struct cpufreq_policy *policy;
+	unsigned int j;
+
+	this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+	if (!this_dbs_info->enable)
+		return;
+
+	policy = this_dbs_info->cur_policy;
+
+	if ( init_flag == 0 ) {
+		for ( /* NULL */; init_flag < NR_CPUS; init_flag++ ) {
+			dbs_info = &per_cpu(cpu_dbs_info, init_flag);
+			requested_freq[cpu] = dbs_info->cur_policy->cur;
+		}
+		init_flag = 1;
+	}
+	
+	/* 
+	 * The default safe range is 20% to 80% 
+	 * Every sampling_rate, we check
+	 * 	- If current idle time is less than 20%, then we try to 
+	 * 	  increase frequency
+	 * Every sampling_rate*sampling_down_factor, we check
+	 * 	- If current idle time is more than 80%, then we try to
+	 * 	  decrease frequency
+	 *
+	 * Any frequency increase takes it to the maximum frequency. 
+	 * Frequency reduction happens at minimum steps of 
+	 * 5% (default) of max_frequency 
+	 */
+
+	/* Check for frequency increase */
+
+	idle_ticks = UINT_MAX;
+	for_each_cpu_mask(j, policy->cpus) {
+		unsigned int tmp_idle_ticks, total_idle_ticks;
+		struct cpu_dbs_info_s *j_dbs_info;
+
+		j_dbs_info = &per_cpu(cpu_dbs_info, j);
+		/* Check for frequency increase */
+		total_idle_ticks = get_cpu_idle_time(j);
+		tmp_idle_ticks = total_idle_ticks -
+			j_dbs_info->prev_cpu_idle_up;
+		j_dbs_info->prev_cpu_idle_up = total_idle_ticks;
+
+		if (tmp_idle_ticks < idle_ticks)
+			idle_ticks = tmp_idle_ticks;
+	}
+
+	/* Scale idle ticks by 100 and compare with up and down ticks */
+	idle_ticks *= 100;
+	up_idle_ticks = (100 - dbs_tuners_ins.up_threshold) *
+		usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
+
+	if (idle_ticks < up_idle_ticks) {
+		down_skip[cpu] = 0;
+		for_each_cpu_mask(j, policy->cpus) {
+			struct cpu_dbs_info_s *j_dbs_info;
+
+			j_dbs_info = &per_cpu(cpu_dbs_info, j);
+			j_dbs_info->prev_cpu_idle_down = 
+					j_dbs_info->prev_cpu_idle_up;
+		}
+		/* if we are already at full speed then break out early */
+		if (requested_freq[cpu] == policy->max)
+			return;
+		
+		freq_step = (dbs_tuners_ins.freq_step * policy->max) / 100;
+
+		/* max freq cannot be less than 100. But who knows.... */
+		if (unlikely(freq_step == 0))
+			freq_step = 5;
+		
+		requested_freq[cpu] += freq_step;
+		if (requested_freq[cpu] > policy->max)
+			requested_freq[cpu] = policy->max;
+
+		__cpufreq_driver_target(policy, requested_freq[cpu], 
+			CPUFREQ_RELATION_H);
+		return;
+	}
+
+	/* Check for frequency decrease */
+	down_skip[cpu]++;
+	if (down_skip[cpu] < dbs_tuners_ins.sampling_down_factor)
+		return;
+
+	idle_ticks = UINT_MAX;
+	for_each_cpu_mask(j, policy->cpus) {
+		unsigned int tmp_idle_ticks, total_idle_ticks;
+		struct cpu_dbs_info_s *j_dbs_info;
+
+		j_dbs_info = &per_cpu(cpu_dbs_info, j);
+		total_idle_ticks = j_dbs_info->prev_cpu_idle_up;
+		tmp_idle_ticks = total_idle_ticks -
+			j_dbs_info->prev_cpu_idle_down;
+		j_dbs_info->prev_cpu_idle_down = total_idle_ticks;
+
+		if (tmp_idle_ticks < idle_ticks)
+			idle_ticks = tmp_idle_ticks;
+	}
+
+	/* Scale idle ticks by 100 and compare with up and down ticks */
+	idle_ticks *= 100;
+	down_skip[cpu] = 0;
+
+	freq_down_sampling_rate = dbs_tuners_ins.sampling_rate *
+		dbs_tuners_ins.sampling_down_factor;
+	down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
+			usecs_to_jiffies(freq_down_sampling_rate);
+
+	if (idle_ticks > down_idle_ticks) {
+		/* if we are already at the lowest speed then break out early
+		 * or if we 'cannot' reduce the speed as the user might want
+		 * freq_step to be zero */
+		if (requested_freq[cpu] == policy->min
+				|| dbs_tuners_ins.freq_step == 0)
+			return;
+
+		freq_step = (dbs_tuners_ins.freq_step * policy->max) / 100;
+
+		/* max freq cannot be less than 100. But who knows.... */
+		if (unlikely(freq_step == 0))
+			freq_step = 5;
+
+		requested_freq[cpu] -= freq_step;
+		if (requested_freq[cpu] < policy->min)
+			requested_freq[cpu] = policy->min;
+
+		__cpufreq_driver_target(policy,
+			requested_freq[cpu],
+			CPUFREQ_RELATION_H);
+		return;
+	}
+}
+
+static void do_dbs_timer(void *data)
+{ 
+	int i;
+	down(&dbs_sem);
+	for_each_online_cpu(i)
+		dbs_check_cpu(i);
+	schedule_delayed_work(&dbs_work, 
+			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
+	up(&dbs_sem);
+} 
+
+static inline void dbs_timer_init(void)
+{
+	INIT_WORK(&dbs_work, do_dbs_timer, NULL);
+	schedule_delayed_work(&dbs_work,
+			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
+	return;
+}
+
+static inline void dbs_timer_exit(void)
+{
+	cancel_delayed_work(&dbs_work);
+	return;
+}
+
+static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
+				   unsigned int event)
+{
+	unsigned int cpu = policy->cpu;
+	struct cpu_dbs_info_s *this_dbs_info;
+	unsigned int j;
+
+	this_dbs_info = &per_cpu(cpu_dbs_info, cpu);
+
+	switch (event) {
+	case CPUFREQ_GOV_START:
+		if ((!cpu_online(cpu)) || 
+		    (!policy->cur))
+			return -EINVAL;
+
+		if (policy->cpuinfo.transition_latency >
+				(TRANSITION_LATENCY_LIMIT * 1000))
+			return -EINVAL;
+		if (this_dbs_info->enable) /* Already enabled */
+			break;
+		 
+		down(&dbs_sem);
+		for_each_cpu_mask(j, policy->cpus) {
+			struct cpu_dbs_info_s *j_dbs_info;
+			j_dbs_info = &per_cpu(cpu_dbs_info, j);
+			j_dbs_info->cur_policy = policy;
+		
+			j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(j);
+			j_dbs_info->prev_cpu_idle_down
+				= j_dbs_info->prev_cpu_idle_up;
+		}
+		this_dbs_info->enable = 1;
+		sysfs_create_group(&policy->kobj, &dbs_attr_group);
+		dbs_enable++;
+		/*
+		 * Start the timerschedule work, when this governor
+		 * is used for first time
+		 */
+		if (dbs_enable == 1) {
+			unsigned int latency;
+			/* policy latency is in nS. Convert it to uS first */
+
+			latency = policy->cpuinfo.transition_latency;
+			if (latency < 1000)
+				latency = 1000;
+
+			def_sampling_rate = (latency / 1000) *
+					DEF_SAMPLING_RATE_LATENCY_MULTIPLIER;
+			dbs_tuners_ins.sampling_rate = def_sampling_rate;
+			dbs_tuners_ins.ignore_nice = 0;
+			dbs_tuners_ins.freq_step = 5;
+
+			dbs_timer_init();
+		}
+		
+		up(&dbs_sem);
+		break;
+
+	case CPUFREQ_GOV_STOP:
+		down(&dbs_sem);
+		this_dbs_info->enable = 0;
+		sysfs_remove_group(&policy->kobj, &dbs_attr_group);
+		dbs_enable--;
+		/*
+		 * Stop the timerschedule work, when this governor
+		 * is used for first time
+		 */
+		if (dbs_enable == 0) 
+			dbs_timer_exit();
+		
+		up(&dbs_sem);
+
+		break;
+
+	case CPUFREQ_GOV_LIMITS:
+		down(&dbs_sem);
+		if (policy->max < this_dbs_info->cur_policy->cur)
+			__cpufreq_driver_target(
+					this_dbs_info->cur_policy,
+				       	policy->max, CPUFREQ_RELATION_H);
+		else if (policy->min > this_dbs_info->cur_policy->cur)
+			__cpufreq_driver_target(
+					this_dbs_info->cur_policy,
+				       	policy->min, CPUFREQ_RELATION_L);
+		up(&dbs_sem);
+		break;
+	}
+	return 0;
+}
+
+static struct cpufreq_governor cpufreq_gov_dbs = {
+	.name		= "conservative",
+	.governor	= cpufreq_governor_dbs,
+	.owner		= THIS_MODULE,
+};
+
+static int __init cpufreq_gov_dbs_init(void)
+{
+	return cpufreq_register_governor(&cpufreq_gov_dbs);
+}
+
+static void __exit cpufreq_gov_dbs_exit(void)
+{
+	/* Make sure that the scheduled work is indeed not running */
+	flush_scheduled_work();
+
+	cpufreq_unregister_governor(&cpufreq_gov_dbs);
+}
+
+
+MODULE_AUTHOR ("Alexander Clouter <alex-kernel@digriz.org.uk>");
+MODULE_DESCRIPTION ("'cpufreq_conservative' - A dynamic cpufreq governor for "
+		"Low Latency Frequency Transition capable processors "
+		"optimised for use in a battery environment");
+MODULE_LICENSE ("GPL");
+
+module_init(cpufreq_gov_dbs_init);
+module_exit(cpufreq_gov_dbs_exit);
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 8d83a21c647..c1fc9c62bb5 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -34,13 +34,9 @@
  */
 
 #define DEF_FREQUENCY_UP_THRESHOLD		(80)
-#define MIN_FREQUENCY_UP_THRESHOLD		(0)
+#define MIN_FREQUENCY_UP_THRESHOLD		(11)
 #define MAX_FREQUENCY_UP_THRESHOLD		(100)
 
-#define DEF_FREQUENCY_DOWN_THRESHOLD		(20)
-#define MIN_FREQUENCY_DOWN_THRESHOLD		(0)
-#define MAX_FREQUENCY_DOWN_THRESHOLD		(100)
-
 /* 
  * The polling frequency of this governor depends on the capability of 
  * the processor. Default polling frequency is 1000 times the transition
@@ -55,9 +51,9 @@ static unsigned int 				def_sampling_rate;
 #define MIN_SAMPLING_RATE			(def_sampling_rate / 2)
 #define MAX_SAMPLING_RATE			(500 * def_sampling_rate)
 #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER	(1000)
-#define DEF_SAMPLING_DOWN_FACTOR		(10)
+#define DEF_SAMPLING_DOWN_FACTOR		(1)
+#define MAX_SAMPLING_DOWN_FACTOR		(10)
 #define TRANSITION_LATENCY_LIMIT		(10 * 1000)
-#define sampling_rate_in_HZ(x)			(((x * HZ) < (1000 * 1000))?1:((x * HZ) / (1000 * 1000)))
 
 static void do_dbs_timer(void *data);
 
@@ -78,15 +74,23 @@ struct dbs_tuners {
 	unsigned int 		sampling_rate;
 	unsigned int		sampling_down_factor;
 	unsigned int		up_threshold;
-	unsigned int		down_threshold;
+	unsigned int		ignore_nice;
 };
 
 static struct dbs_tuners dbs_tuners_ins = {
 	.up_threshold 		= DEF_FREQUENCY_UP_THRESHOLD,
-	.down_threshold 	= DEF_FREQUENCY_DOWN_THRESHOLD,
 	.sampling_down_factor 	= DEF_SAMPLING_DOWN_FACTOR,
 };
 
+static inline unsigned int get_cpu_idle_time(unsigned int cpu)
+{
+	return	kstat_cpu(cpu).cpustat.idle +
+		kstat_cpu(cpu).cpustat.iowait +
+		( !dbs_tuners_ins.ignore_nice ? 
+		  kstat_cpu(cpu).cpustat.nice :
+		  0);
+}
+
 /************************** sysfs interface ************************/
 static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
 {
@@ -115,7 +119,7 @@ static ssize_t show_##file_name						\
 show_one(sampling_rate, sampling_rate);
 show_one(sampling_down_factor, sampling_down_factor);
 show_one(up_threshold, up_threshold);
-show_one(down_threshold, down_threshold);
+show_one(ignore_nice, ignore_nice);
 
 static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused, 
 		const char *buf, size_t count)
@@ -126,6 +130,9 @@ static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
 	if (ret != 1 )
 		return -EINVAL;
 
+	if (input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
+		return -EINVAL;
+
 	down(&dbs_sem);
 	dbs_tuners_ins.sampling_down_factor = input;
 	up(&dbs_sem);
@@ -161,8 +168,7 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
 
 	down(&dbs_sem);
 	if (ret != 1 || input > MAX_FREQUENCY_UP_THRESHOLD || 
-			input < MIN_FREQUENCY_UP_THRESHOLD ||
-			input <= dbs_tuners_ins.down_threshold) {
+			input < MIN_FREQUENCY_UP_THRESHOLD) {
 		up(&dbs_sem);
 		return -EINVAL;
 	}
@@ -173,22 +179,35 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
 	return count;
 }
 
-static ssize_t store_down_threshold(struct cpufreq_policy *unused, 
+static ssize_t store_ignore_nice(struct cpufreq_policy *policy,
 		const char *buf, size_t count)
 {
 	unsigned int input;
 	int ret;
+
+	unsigned int j;
+	
 	ret = sscanf (buf, "%u", &input);
+	if ( ret != 1 )
+		return -EINVAL;
 
+	if ( input > 1 )
+		input = 1;
+	
 	down(&dbs_sem);
-	if (ret != 1 || input > MAX_FREQUENCY_DOWN_THRESHOLD || 
-			input < MIN_FREQUENCY_DOWN_THRESHOLD ||
-			input >= dbs_tuners_ins.up_threshold) {
+	if ( input == dbs_tuners_ins.ignore_nice ) { /* nothing to do */
 		up(&dbs_sem);
-		return -EINVAL;
+		return count;
 	}
+	dbs_tuners_ins.ignore_nice = input;
 
-	dbs_tuners_ins.down_threshold = input;
+	/* we need to re-evaluate prev_cpu_idle_up and prev_cpu_idle_down */
+	for_each_online_cpu(j) {
+		struct cpu_dbs_info_s *j_dbs_info;
+		j_dbs_info = &per_cpu(cpu_dbs_info, j);
+		j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(j);
+		j_dbs_info->prev_cpu_idle_down = j_dbs_info->prev_cpu_idle_up;
+	}
 	up(&dbs_sem);
 
 	return count;
@@ -201,7 +220,7 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 define_one_rw(sampling_rate);
 define_one_rw(sampling_down_factor);
 define_one_rw(up_threshold);
-define_one_rw(down_threshold);
+define_one_rw(ignore_nice);
 
 static struct attribute * dbs_attributes[] = {
 	&sampling_rate_max.attr,
@@ -209,7 +228,7 @@ static struct attribute * dbs_attributes[] = {
 	&sampling_rate.attr,
 	&sampling_down_factor.attr,
 	&up_threshold.attr,
-	&down_threshold.attr,
+	&ignore_nice.attr,
 	NULL
 };
 
@@ -222,9 +241,8 @@ static struct attribute_group dbs_attr_group = {
 
 static void dbs_check_cpu(int cpu)
 {
-	unsigned int idle_ticks, up_idle_ticks, down_idle_ticks;
-	unsigned int total_idle_ticks;
-	unsigned int freq_down_step;
+	unsigned int idle_ticks, up_idle_ticks, total_ticks;
+	unsigned int freq_next;
 	unsigned int freq_down_sampling_rate;
 	static int down_skip[NR_CPUS];
 	struct cpu_dbs_info_s *this_dbs_info;
@@ -238,38 +256,25 @@ static void dbs_check_cpu(int cpu)
 
 	policy = this_dbs_info->cur_policy;
 	/* 
-	 * The default safe range is 20% to 80% 
-	 * Every sampling_rate, we check
-	 * 	- If current idle time is less than 20%, then we try to 
-	 * 	  increase frequency
-	 * Every sampling_rate*sampling_down_factor, we check
-	 * 	- If current idle time is more than 80%, then we try to
-	 * 	  decrease frequency
+	 * Every sampling_rate, we check, if current idle time is less
+	 * than 20% (default), then we try to increase frequency
+	 * Every sampling_rate*sampling_down_factor, we look for a the lowest
+	 * frequency which can sustain the load while keeping idle time over
+	 * 30%. If such a frequency exist, we try to decrease to this frequency.
 	 *
 	 * Any frequency increase takes it to the maximum frequency. 
 	 * Frequency reduction happens at minimum steps of 
-	 * 5% of max_frequency 
+	 * 5% (default) of current frequency 
 	 */
 
 	/* Check for frequency increase */
-	total_idle_ticks = kstat_cpu(cpu).cpustat.idle +
-		kstat_cpu(cpu).cpustat.iowait;
-	idle_ticks = total_idle_ticks -
-		this_dbs_info->prev_cpu_idle_up;
-	this_dbs_info->prev_cpu_idle_up = total_idle_ticks;
-	
-
+	idle_ticks = UINT_MAX;
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks;
+		unsigned int tmp_idle_ticks, total_idle_ticks;
 		struct cpu_dbs_info_s *j_dbs_info;
 
-		if (j == cpu)
-			continue;
-
 		j_dbs_info = &per_cpu(cpu_dbs_info, j);
-		/* Check for frequency increase */
-		total_idle_ticks = kstat_cpu(j).cpustat.idle +
-			kstat_cpu(j).cpustat.iowait;
+		total_idle_ticks = get_cpu_idle_time(j);
 		tmp_idle_ticks = total_idle_ticks -
 			j_dbs_info->prev_cpu_idle_up;
 		j_dbs_info->prev_cpu_idle_up = total_idle_ticks;
@@ -281,13 +286,23 @@ static void dbs_check_cpu(int cpu)
 	/* Scale idle ticks by 100 and compare with up and down ticks */
 	idle_ticks *= 100;
 	up_idle_ticks = (100 - dbs_tuners_ins.up_threshold) *
-			sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate);
+			usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
 
 	if (idle_ticks < up_idle_ticks) {
+		down_skip[cpu] = 0;
+		for_each_cpu_mask(j, policy->cpus) {
+			struct cpu_dbs_info_s *j_dbs_info;
+
+			j_dbs_info = &per_cpu(cpu_dbs_info, j);
+			j_dbs_info->prev_cpu_idle_down = 
+					j_dbs_info->prev_cpu_idle_up;
+		}
+		/* if we are already at full speed then break out early */
+		if (policy->cur == policy->max)
+			return;
+		
 		__cpufreq_driver_target(policy, policy->max, 
 			CPUFREQ_RELATION_H);
-		down_skip[cpu] = 0;
-		this_dbs_info->prev_cpu_idle_down = total_idle_ticks;
 		return;
 	}
 
@@ -296,23 +311,14 @@ static void dbs_check_cpu(int cpu)
 	if (down_skip[cpu] < dbs_tuners_ins.sampling_down_factor)
 		return;
 
-	total_idle_ticks = kstat_cpu(cpu).cpustat.idle +
-		kstat_cpu(cpu).cpustat.iowait;
-	idle_ticks = total_idle_ticks -
-		this_dbs_info->prev_cpu_idle_down;
-	this_dbs_info->prev_cpu_idle_down = total_idle_ticks;
-
+	idle_ticks = UINT_MAX;
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks;
+		unsigned int tmp_idle_ticks, total_idle_ticks;
 		struct cpu_dbs_info_s *j_dbs_info;
 
-		if (j == cpu)
-			continue;
-
 		j_dbs_info = &per_cpu(cpu_dbs_info, j);
-		/* Check for frequency increase */
-		total_idle_ticks = kstat_cpu(j).cpustat.idle +
-			kstat_cpu(j).cpustat.iowait;
+		/* Check for frequency decrease */
+		total_idle_ticks = j_dbs_info->prev_cpu_idle_up;
 		tmp_idle_ticks = total_idle_ticks -
 			j_dbs_info->prev_cpu_idle_down;
 		j_dbs_info->prev_cpu_idle_down = total_idle_ticks;
@@ -321,38 +327,37 @@ static void dbs_check_cpu(int cpu)
 			idle_ticks = tmp_idle_ticks;
 	}
 
-	/* Scale idle ticks by 100 and compare with up and down ticks */
-	idle_ticks *= 100;
 	down_skip[cpu] = 0;
+	/* if we cannot reduce the frequency anymore, break out early */
+	if (policy->cur == policy->min)
+		return;
 
+	/* Compute how many ticks there are between two measurements */
 	freq_down_sampling_rate = dbs_tuners_ins.sampling_rate *
 		dbs_tuners_ins.sampling_down_factor;
-	down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
-			sampling_rate_in_HZ(freq_down_sampling_rate);
+	total_ticks = usecs_to_jiffies(freq_down_sampling_rate);
 
-	if (idle_ticks > down_idle_ticks ) {
-		freq_down_step = (5 * policy->max) / 100;
-
-		/* max freq cannot be less than 100. But who knows.... */
-		if (unlikely(freq_down_step == 0))
-			freq_down_step = 5;
+	/*
+	 * The optimal frequency is the frequency that is the lowest that
+	 * can support the current CPU usage without triggering the up
+	 * policy. To be safe, we focus 10 points under the threshold.
+	 */
+	freq_next = ((total_ticks - idle_ticks) * 100) / total_ticks;
+	freq_next = (freq_next * policy->cur) / 
+			(dbs_tuners_ins.up_threshold - 10);
 
-		__cpufreq_driver_target(policy,
-			policy->cur - freq_down_step, 
-			CPUFREQ_RELATION_H);
-		return;
-	}
+	if (freq_next <= ((policy->cur * 95) / 100))
+		__cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L);
 }
 
 static void do_dbs_timer(void *data)
 { 
 	int i;
 	down(&dbs_sem);
-	for (i = 0; i < NR_CPUS; i++)
-		if (cpu_online(i))
-			dbs_check_cpu(i);
+	for_each_online_cpu(i)
+		dbs_check_cpu(i);
 	schedule_delayed_work(&dbs_work, 
-			sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
+			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
 	up(&dbs_sem);
 } 
 
@@ -360,7 +365,7 @@ static inline void dbs_timer_init(void)
 {
 	INIT_WORK(&dbs_work, do_dbs_timer, NULL);
 	schedule_delayed_work(&dbs_work,
-			sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
+			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
 	return;
 }
 
@@ -397,12 +402,9 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			j_dbs_info = &per_cpu(cpu_dbs_info, j);
 			j_dbs_info->cur_policy = policy;
 		
-			j_dbs_info->prev_cpu_idle_up = 
-				kstat_cpu(j).cpustat.idle +
-				kstat_cpu(j).cpustat.iowait;
-			j_dbs_info->prev_cpu_idle_down = 
-				kstat_cpu(j).cpustat.idle +
-				kstat_cpu(j).cpustat.iowait;
+			j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(j);
+			j_dbs_info->prev_cpu_idle_down
+				= j_dbs_info->prev_cpu_idle_up;
 		}
 		this_dbs_info->enable = 1;
 		sysfs_create_group(&policy->kobj, &dbs_attr_group);
@@ -422,6 +424,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			def_sampling_rate = (latency / 1000) *
 					DEF_SAMPLING_RATE_LATENCY_MULTIPLIER;
 			dbs_tuners_ins.sampling_rate = def_sampling_rate;
+			dbs_tuners_ins.ignore_nice = 0;
 
 			dbs_timer_init();
 		}
@@ -461,12 +464,11 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 	return 0;
 }
 
-struct cpufreq_governor cpufreq_gov_dbs = {
+static struct cpufreq_governor cpufreq_gov_dbs = {
 	.name		= "ondemand",
 	.governor	= cpufreq_governor_dbs,
 	.owner		= THIS_MODULE,
 };
-EXPORT_SYMBOL(cpufreq_gov_dbs);
 
 static int __init cpufreq_gov_dbs_init(void)
 {
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 2084593937c..741b6b191e6 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -19,6 +19,7 @@
 #include <linux/percpu.h>
 #include <linux/kobject.h>
 #include <linux/spinlock.h>
+#include <asm/cputime.h>
 
 static spinlock_t cpufreq_stats_lock;
 
@@ -29,20 +30,14 @@ static struct freq_attr _attr_##_name = {\
 	.show = _show,\
 };
 
-static unsigned long
-delta_time(unsigned long old, unsigned long new)
-{
-	return (old > new) ? (old - new): (new + ~old + 1);
-}
-
 struct cpufreq_stats {
 	unsigned int cpu;
 	unsigned int total_trans;
-	unsigned long long last_time;
+	unsigned long long  last_time;
 	unsigned int max_state;
 	unsigned int state_num;
 	unsigned int last_index;
-	unsigned long long *time_in_state;
+	cputime64_t *time_in_state;
 	unsigned int *freq_table;
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
 	unsigned int *trans_table;
@@ -60,12 +55,16 @@ static int
 cpufreq_stats_update (unsigned int cpu)
 {
 	struct cpufreq_stats *stat;
+	unsigned long long cur_time;
+
+	cur_time = get_jiffies_64();
 	spin_lock(&cpufreq_stats_lock);
 	stat = cpufreq_stats_table[cpu];
 	if (stat->time_in_state)
-		stat->time_in_state[stat->last_index] +=
-			delta_time(stat->last_time, jiffies);
-	stat->last_time = jiffies;
+		stat->time_in_state[stat->last_index] =
+			cputime64_add(stat->time_in_state[stat->last_index],
+				      cputime_sub(cur_time, stat->last_time));
+	stat->last_time = cur_time;
 	spin_unlock(&cpufreq_stats_lock);
 	return 0;
 }
@@ -90,8 +89,8 @@ show_time_in_state(struct cpufreq_policy *policy, char *buf)
 		return 0;
 	cpufreq_stats_update(stat->cpu);
 	for (i = 0; i < stat->state_num; i++) {
-		len += sprintf(buf + len, "%u %llu\n",
-			stat->freq_table[i], stat->time_in_state[i]);
+		len += sprintf(buf + len, "%u %llu\n", stat->freq_table[i], 
+			(unsigned long long)cputime64_to_clock_t(stat->time_in_state[i]));
 	}
 	return len;
 }
@@ -107,16 +106,30 @@ show_trans_table(struct cpufreq_policy *policy, char *buf)
 	if(!stat)
 		return 0;
 	cpufreq_stats_update(stat->cpu);
+	len += snprintf(buf + len, PAGE_SIZE - len, "   From  :    To\n");
+	len += snprintf(buf + len, PAGE_SIZE - len, "         : ");
+	for (i = 0; i < stat->state_num; i++) {
+		if (len >= PAGE_SIZE)
+			break;
+		len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
+				stat->freq_table[i]);
+	}
+	if (len >= PAGE_SIZE)
+		return len;
+
+	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+
 	for (i = 0; i < stat->state_num; i++) {
 		if (len >= PAGE_SIZE)
 			break;
-		len += snprintf(buf + len, PAGE_SIZE - len, "%9u:\t",
+
+		len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ",
 				stat->freq_table[i]);
 
 		for (j = 0; j < stat->state_num; j++)   {
 			if (len >= PAGE_SIZE)
 				break;
-			len += snprintf(buf + len, PAGE_SIZE - len, "%u\t",
+			len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
 					stat->trans_table[i*stat->max_state+j]);
 		}
 		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
@@ -197,7 +210,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
 		count++;
 	}
 
-	alloc_size = count * sizeof(int) + count * sizeof(long long);
+	alloc_size = count * sizeof(int) + count * sizeof(cputime64_t);
 
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
 	alloc_size += count * count * sizeof(int);
@@ -224,7 +237,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
 	}
 	stat->state_num = j;
 	spin_lock(&cpufreq_stats_lock);
-	stat->last_time = jiffies;
+	stat->last_time = get_jiffies_64();
 	stat->last_index = freq_table_get_index(stat, policy->cur);
 	spin_unlock(&cpufreq_stats_lock);
 	cpufreq_cpu_put(data);
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
index 6d5df6c2efa..df1b721154d 100644
--- a/drivers/firmware/pcdp.c
+++ b/drivers/firmware/pcdp.c
@@ -11,6 +11,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/config.h>
 #include <linux/acpi.h>
 #include <linux/console.h>
 #include <linux/efi.h>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 78e3e7b24d7..39f3e9101ed 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1936,7 +1936,7 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
 		 * NOTE! The "len" and "addr" checks should possibly have
 		 * separate masks.
 		 */
-		if ((rq->data_len & mask) || (addr & mask))
+		if ((rq->data_len & 15) || (addr & mask))
 			info->dma = 0;
 	}
 
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 564974ce579..96fb9870834 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -101,6 +101,7 @@ struct mousedev_list {
 	unsigned char ready, buffer, bufsiz;
 	unsigned char imexseq, impsseq;
 	enum mousedev_emul mode;
+	unsigned long last_buttons;
 };
 
 #define MOUSEDEV_SEQ_LEN	6
@@ -224,7 +225,7 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
 		spin_lock_irqsave(&list->packet_lock, flags);
 
 		p = &list->packets[list->head];
-		if (list->ready && p->buttons != packet->buttons) {
+		if (list->ready && p->buttons != mousedev->packet.buttons) {
 			unsigned int new_head = (list->head + 1) % PACKET_QUEUE_LEN;
 			if (new_head != list->tail) {
 				p = &list->packets[list->head = new_head];
@@ -249,10 +250,13 @@ static void mousedev_notify_readers(struct mousedev *mousedev, struct mousedev_h
 		p->dz += packet->dz;
 		p->buttons = mousedev->packet.buttons;
 
-		list->ready = 1;
+		if (p->dx || p->dy || p->dz || p->buttons != list->last_buttons)
+			list->ready = 1;
 
 		spin_unlock_irqrestore(&list->packet_lock, flags);
-		kill_fasync(&list->fasync, SIGIO, POLL_IN);
+
+		if (list->ready)
+			kill_fasync(&list->fasync, SIGIO, POLL_IN);
 	}
 
 	wake_up_interruptible(&mousedev->wait);
@@ -477,9 +481,10 @@ static void mousedev_packet(struct mousedev_list *list, signed char *ps2_data)
 	}
 
 	if (!p->dx && !p->dy && !p->dz) {
-		if (list->tail == list->head)
+		if (list->tail == list->head) {
 			list->ready = 0;
-		else
+			list->last_buttons = p->buttons;
+		} else
 			list->tail = (list->tail + 1) % PACKET_QUEUE_LEN;
 	}
 
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index e654aa5eecd..bb9f4044c74 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2421,7 +2421,7 @@ pmac_wakeup_devices(void)
 
 	/* Re-enable local CPU interrupts */
 	local_irq_enable();
-	mdelay(100);
+	mdelay(10);
 	preempt_enable();
 
 	/* Re-enable clock spreading on some machines */
@@ -2549,7 +2549,9 @@ powerbook_sleep_Core99(void)
 		return ret;
 	}
 
-	printk(KERN_DEBUG "HID1, before: %x\n", mfspr(SPRN_HID1));
+	/* Stop environment and ADB interrupts */
+	pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, 0);
+	pmu_wait_complete(&req);
 
 	/* Tell PMU what events will wake us up */
 	pmu_request(&req, NULL, 4, PMU_POWER_EVENTS, PMU_PWR_CLR_WAKEUP_EVENTS,
@@ -2611,8 +2613,6 @@ powerbook_sleep_Core99(void)
 	pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, pmu_intr_mask);
 	pmu_wait_complete(&req);
 
-	printk(KERN_DEBUG "HID1, after: %x\n", mfspr(SPRN_HID1));
-
 	pmac_wakeup_devices();
 
 	return 0;
diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index d047e349d70..1339912c308 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -906,22 +906,12 @@ static int dst_tone_power_cmd(struct dst_state* state)
 	if (state->dst_type == DST_TYPE_IS_TERR)
 		return 0;
 
-	if (state->voltage == SEC_VOLTAGE_OFF)
-		paket[4] = 0;
-	else
-		paket[4] = 1;
-
-	if (state->tone == SEC_TONE_ON)
-		paket[2] = 0x02;
-	else
-		paket[2] = 0;
-	if (state->minicmd == SEC_MINI_A)
-		paket[3] = 0x02;
-	else
-		paket[3] = 0;
-
+	paket[4] = state->tx_tuna[4];
+	paket[2] = state->tx_tuna[2];
+	paket[3] = state->tx_tuna[3];
 	paket[7] = dst_check_sum (paket, 7);
 	dst_command(state, paket, 8);
+
 	return 0;
 }
 
@@ -980,7 +970,7 @@ static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
 
 static int dst_write_tuna(struct dvb_frontend* fe)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 	int retval;
 	u8 reply;
 
@@ -1048,10 +1038,10 @@ static int dst_write_tuna(struct dvb_frontend* fe)
 
 static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 	u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
 
-	if (state->dst_type == DST_TYPE_IS_TERR)
+	if (state->dst_type != DST_TYPE_IS_SAT)
 		return 0;
 
 	if (cmd->msg_len == 0 || cmd->msg_len > 4)
@@ -1064,39 +1054,32 @@ static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd*
 
 static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
 {
-	u8 *val;
 	int need_cmd;
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	state->voltage = voltage;
 
-	if (state->dst_type == DST_TYPE_IS_TERR)
+	if (state->dst_type != DST_TYPE_IS_SAT)
 		return 0;
 
 	need_cmd = 0;
-	val = &state->tx_tuna[0];
-	val[8] &= ~0x40;
 	switch (voltage) {
-	case SEC_VOLTAGE_13:
-		if ((state->diseq_flags & HAS_POWER) == 0)
-			need_cmd = 1;
-		state->diseq_flags |= HAS_POWER;
-		break;
+		case SEC_VOLTAGE_13:
+		case SEC_VOLTAGE_18:
+			if ((state->diseq_flags & HAS_POWER) == 0)
+				need_cmd = 1;
+			state->diseq_flags |= HAS_POWER;
+			state->tx_tuna[4] = 0x01;
+			break;
 
-	case SEC_VOLTAGE_18:
-		if ((state->diseq_flags & HAS_POWER) == 0)
+		case SEC_VOLTAGE_OFF:
 			need_cmd = 1;
-		state->diseq_flags |= HAS_POWER;
-		val[8] |= 0x40;
-		break;
-
-	case SEC_VOLTAGE_OFF:
-		need_cmd = 1;
-		state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
-		break;
+			state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
+			state->tx_tuna[4] = 0x00;
+			break;
 
-	default:
-		return -EINVAL;
+		default:
+			return -EINVAL;
 	}
 	if (need_cmd)
 		dst_tone_power_cmd(state);
@@ -1106,37 +1089,56 @@ static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
 
 static int dst_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
 {
-	u8 *val;
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	state->tone = tone;
 
-	if (state->dst_type == DST_TYPE_IS_TERR)
+	if (state->dst_type != DST_TYPE_IS_SAT)
 		return 0;
 
-	val = &state->tx_tuna[0];
+	switch (tone) {
+		case SEC_TONE_OFF:
+			state->tx_tuna[2] = 0xff;
+			break;
 
-	val[8] &= ~0x1;
+		case SEC_TONE_ON:
+			state->tx_tuna[2] = 0x02;
+			break;
 
-	switch (tone) {
-	case SEC_TONE_OFF:
-		break;
+		default:
+			return -EINVAL;
+	}
+	dst_tone_power_cmd(state);
 
-	case SEC_TONE_ON:
-		val[8] |= 1;
-		break;
+	return 0;
+}
 
-	default:
-		return -EINVAL;
+static int dst_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t minicmd)
+{
+	struct dst_state *state = fe->demodulator_priv;
+
+	if (state->dst_type != DST_TYPE_IS_SAT)
+		return 0;
+
+	state->minicmd = minicmd;
+
+	switch (minicmd) {
+		case SEC_MINI_A:
+			state->tx_tuna[3] = 0x02;
+			break;
+		case SEC_MINI_B:
+			state->tx_tuna[3] = 0xff;
+			break;
 	}
 	dst_tone_power_cmd(state);
 
 	return 0;
 }
 
+
 static int dst_init(struct dvb_frontend* fe)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 	static u8 ini_satci_tuna[] = { 9, 0, 3, 0xb6, 1, 0, 0x73, 0x21, 0, 0 };
 	static u8 ini_satfta_tuna[] = { 0, 0, 3, 0xb6, 1, 0x55, 0xbd, 0x50, 0, 0 };
 	static u8 ini_tvfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
@@ -1168,7 +1170,7 @@ static int dst_init(struct dvb_frontend* fe)
 
 static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	*status = 0;
 	if (state->diseq_flags & HAS_LOCK) {
@@ -1182,7 +1184,7 @@ static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
 
 static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	dst_get_signal(state);
 	*strength = state->decode_strength;
@@ -1192,7 +1194,7 @@ static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
 
 static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	dst_get_signal(state);
 	*snr = state->decode_snr;
@@ -1202,7 +1204,7 @@ static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
 
 static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	dst_set_freq(state, p->frequency);
 	if (verbose > 4)
@@ -1228,7 +1230,7 @@ static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_paramet
 
 static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 
 	p->frequency = state->decode_freq;
 	p->inversion = state->inversion;
@@ -1248,7 +1250,7 @@ static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_paramet
 
 static void dst_release(struct dvb_frontend* fe)
 {
-	struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+	struct dst_state* state = fe->demodulator_priv;
 	kfree(state);
 }
 
@@ -1346,7 +1348,7 @@ static struct dvb_frontend_ops dst_dvbs_ops = {
 	.read_signal_strength = dst_read_signal_strength,
 	.read_snr = dst_read_snr,
 
-	.diseqc_send_burst = dst_set_tone,
+	.diseqc_send_burst = dst_send_burst,
 	.diseqc_send_master_cmd = dst_set_diseqc,
 	.set_voltage = dst_set_voltage,
 	.set_tone = dst_set_tone,
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index f10dd74988c..fc9b5cd957a 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -133,6 +133,8 @@
 /* number of ETHTOOL_GSTATS u64's */
 #define TG3_NUM_STATS		(sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 
+#define TG3_NUM_TEST		6
+
 static char version[] __devinitdata =
 	DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
 
@@ -316,6 +318,17 @@ static struct {
 	{ "nic_tx_threshold_hit" }
 };
 
+static struct {
+	const char string[ETH_GSTRING_LEN];
+} ethtool_test_keys[TG3_NUM_TEST] = {
+	{ "nvram test     (online) " },
+	{ "link test      (online) " },
+	{ "register test  (offline)" },
+	{ "memory test    (offline)" },
+	{ "loopback test  (offline)" },
+	{ "interrupt test (offline)" },
+};
+
 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 {
 	if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) != 0) {
@@ -3070,7 +3083,7 @@ static irqreturn_t tg3_test_isr(int irq, void *dev_id,
 }
 
 static int tg3_init_hw(struct tg3 *);
-static int tg3_halt(struct tg3 *, int);
+static int tg3_halt(struct tg3 *, int, int);
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void tg3_poll_controller(struct net_device *dev)
@@ -3094,7 +3107,7 @@ static void tg3_reset_task(void *_data)
 	restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
 	tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
 
-	tg3_halt(tp, 0);
+	tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
 	tg3_init_hw(tp);
 
 	tg3_netif_start(tp);
@@ -3440,7 +3453,7 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)
 	spin_lock_irq(&tp->lock);
 	spin_lock(&tp->tx_lock);
 
-	tg3_halt(tp, 1);
+	tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 
 	tg3_set_mtu(dev, tp, new_mtu);
 
@@ -4131,19 +4144,19 @@ static void tg3_stop_fw(struct tg3 *tp)
 }
 
 /* tp->lock is held. */
-static int tg3_halt(struct tg3 *tp, int silent)
+static int tg3_halt(struct tg3 *tp, int kind, int silent)
 {
 	int err;
 
 	tg3_stop_fw(tp);
 
-	tg3_write_sig_pre_reset(tp, RESET_KIND_SHUTDOWN);
+	tg3_write_sig_pre_reset(tp, kind);
 
 	tg3_abort_hw(tp, silent);
 	err = tg3_chip_reset(tp);
 
-	tg3_write_sig_legacy(tp, RESET_KIND_SHUTDOWN);
-	tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
+	tg3_write_sig_legacy(tp, kind);
+	tg3_write_sig_post_reset(tp, kind);
 
 	if (err)
 		return err;
@@ -4357,7 +4370,12 @@ static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_b
 	 */
 	tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
 
+	/* It is possible that bootcode is still loading at this point.
+	 * Get the nvram lock first before halting the cpu.
+	 */
+	tg3_nvram_lock(tp);
 	err = tg3_halt_cpu(tp, cpu_base);
+	tg3_nvram_unlock(tp);
 	if (err)
 		goto out;
 
@@ -5881,6 +5899,9 @@ static int tg3_test_interrupt(struct tg3 *tp)
 	int err, i;
 	u32 int_mbox = 0;
 
+	if (!netif_running(dev))
+		return -ENODEV;
+
 	tg3_disable_ints(tp);
 
 	free_irq(tp->pdev->irq, dev);
@@ -5984,7 +6005,7 @@ static int tg3_test_msi(struct tg3 *tp)
 	spin_lock_irq(&tp->lock);
 	spin_lock(&tp->tx_lock);
 
-	tg3_halt(tp, 1);
+	tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 	err = tg3_init_hw(tp);
 
 	spin_unlock(&tp->tx_lock);
@@ -6060,7 +6081,7 @@ static int tg3_open(struct net_device *dev)
 
 	err = tg3_init_hw(tp);
 	if (err) {
-		tg3_halt(tp, 1);
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 		tg3_free_rings(tp);
 	} else {
 		if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
@@ -6104,7 +6125,7 @@ static int tg3_open(struct net_device *dev)
 				pci_disable_msi(tp->pdev);
 				tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
 			}
-			tg3_halt(tp, 1);
+			tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 			tg3_free_rings(tp);
 			tg3_free_consistent(tp);
 
@@ -6377,7 +6398,7 @@ static int tg3_close(struct net_device *dev)
 
 	tg3_disable_ints(tp);
 
-	tg3_halt(tp, 1);
+	tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 	tg3_free_rings(tp);
 	tp->tg3_flags &=
 		~(TG3_FLAG_INIT_COMPLETE |
@@ -7097,7 +7118,7 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e
 	tp->tx_pending = ering->tx_pending;
 
 	if (netif_running(dev)) {
-		tg3_halt(tp, 1);
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 		tg3_init_hw(tp);
 		tg3_netif_start(tp);
 	}
@@ -7140,7 +7161,7 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
 		tp->tg3_flags &= ~TG3_FLAG_TX_PAUSE;
 
 	if (netif_running(dev)) {
-		tg3_halt(tp, 1);
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 		tg3_init_hw(tp);
 		tg3_netif_start(tp);
 	}
@@ -7199,12 +7220,20 @@ static int tg3_get_stats_count (struct net_device *dev)
 	return TG3_NUM_STATS;
 }
 
+static int tg3_get_test_count (struct net_device *dev)
+{
+	return TG3_NUM_TEST;
+}
+
 static void tg3_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
 {
 	switch (stringset) {
 	case ETH_SS_STATS:
 		memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
 		break;
+	case ETH_SS_TEST:
+		memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
+		break;
 	default:
 		WARN_ON(1);	/* we need a WARN() */
 		break;
@@ -7218,6 +7247,516 @@ static void tg3_get_ethtool_stats (struct net_device *dev,
 	memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
 }
 
+#define NVRAM_TEST_SIZE 0x100
+
+static int tg3_test_nvram(struct tg3 *tp)
+{
+	u32 *buf, csum;
+	int i, j, err = 0;
+
+	buf = kmalloc(NVRAM_TEST_SIZE, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	for (i = 0, j = 0; i < NVRAM_TEST_SIZE; i += 4, j++) {
+		u32 val;
+
+		if ((err = tg3_nvram_read(tp, i, &val)) != 0)
+			break;
+		buf[j] = cpu_to_le32(val);
+	}
+	if (i < NVRAM_TEST_SIZE)
+		goto out;
+
+	err = -EIO;
+	if (cpu_to_be32(buf[0]) != TG3_EEPROM_MAGIC)
+		goto out;
+
+	/* Bootstrap checksum at offset 0x10 */
+	csum = calc_crc((unsigned char *) buf, 0x10);
+	if(csum != cpu_to_le32(buf[0x10/4]))
+		goto out;
+
+	/* Manufacturing block starts at offset 0x74, checksum at 0xfc */
+	csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
+	if (csum != cpu_to_le32(buf[0xfc/4]))
+		 goto out;
+
+	err = 0;
+
+out:
+	kfree(buf);
+	return err;
+}
+
+#define TG3_SERDES_TIMEOUT_SEC	2
+#define TG3_COPPER_TIMEOUT_SEC	6
+
+static int tg3_test_link(struct tg3 *tp)
+{
+	int i, max;
+
+	if (!netif_running(tp->dev))
+		return -ENODEV;
+
+	if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
+		max = TG3_SERDES_TIMEOUT_SEC;
+	else
+		max = TG3_COPPER_TIMEOUT_SEC;
+
+	for (i = 0; i < max; i++) {
+		if (netif_carrier_ok(tp->dev))
+			return 0;
+
+		if (msleep_interruptible(1000))
+			break;
+	}
+
+	return -EIO;
+}
+
+/* Only test the commonly used registers */
+static int tg3_test_registers(struct tg3 *tp)
+{
+	int i, is_5705;
+	u32 offset, read_mask, write_mask, val, save_val, read_val;
+	static struct {
+		u16 offset;
+		u16 flags;
+#define TG3_FL_5705	0x1
+#define TG3_FL_NOT_5705	0x2
+#define TG3_FL_NOT_5788	0x4
+		u32 read_mask;
+		u32 write_mask;
+	} reg_tbl[] = {
+		/* MAC Control Registers */
+		{ MAC_MODE, TG3_FL_NOT_5705,
+			0x00000000, 0x00ef6f8c },
+		{ MAC_MODE, TG3_FL_5705,
+			0x00000000, 0x01ef6b8c },
+		{ MAC_STATUS, TG3_FL_NOT_5705,
+			0x03800107, 0x00000000 },
+		{ MAC_STATUS, TG3_FL_5705,
+			0x03800100, 0x00000000 },
+		{ MAC_ADDR_0_HIGH, 0x0000,
+			0x00000000, 0x0000ffff },
+		{ MAC_ADDR_0_LOW, 0x0000,
+		       	0x00000000, 0xffffffff },
+		{ MAC_RX_MTU_SIZE, 0x0000,
+			0x00000000, 0x0000ffff },
+		{ MAC_TX_MODE, 0x0000,
+			0x00000000, 0x00000070 },
+		{ MAC_TX_LENGTHS, 0x0000,
+			0x00000000, 0x00003fff },
+		{ MAC_RX_MODE, TG3_FL_NOT_5705,
+			0x00000000, 0x000007fc },
+		{ MAC_RX_MODE, TG3_FL_5705,
+			0x00000000, 0x000007dc },
+		{ MAC_HASH_REG_0, 0x0000,
+			0x00000000, 0xffffffff },
+		{ MAC_HASH_REG_1, 0x0000,
+			0x00000000, 0xffffffff },
+		{ MAC_HASH_REG_2, 0x0000,
+			0x00000000, 0xffffffff },
+		{ MAC_HASH_REG_3, 0x0000,
+			0x00000000, 0xffffffff },
+
+		/* Receive Data and Receive BD Initiator Control Registers. */
+		{ RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
+			0x00000000, 0x00000003 },
+		{ RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ RCVDBDI_STD_BD+0, 0x0000,
+			0x00000000, 0xffffffff },
+		{ RCVDBDI_STD_BD+4, 0x0000,
+			0x00000000, 0xffffffff },
+		{ RCVDBDI_STD_BD+8, 0x0000,
+			0x00000000, 0xffff0002 },
+		{ RCVDBDI_STD_BD+0xc, 0x0000,
+			0x00000000, 0xffffffff },
+	
+		/* Receive BD Initiator Control Registers. */
+		{ RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ RCVBDI_STD_THRESH, TG3_FL_5705,
+			0x00000000, 0x000003ff },
+		{ RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+	
+		/* Host Coalescing Control Registers. */
+		{ HOSTCC_MODE, TG3_FL_NOT_5705,
+			0x00000000, 0x00000004 },
+		{ HOSTCC_MODE, TG3_FL_5705,
+			0x00000000, 0x000000f6 },
+		{ HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_RXCOL_TICKS, TG3_FL_5705,
+			0x00000000, 0x000003ff },
+		{ HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_TXCOL_TICKS, TG3_FL_5705,
+			0x00000000, 0x000003ff },
+		{ HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
+			0x00000000, 0x000000ff },
+		{ HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
+			0x00000000, 0x000000ff },
+		{ HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
+			0x00000000, 0x000000ff },
+		{ HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
+			0x00000000, 0x000000ff },
+		{ HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
+			0x00000000, 0xffffffff },
+		{ HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
+			0xffffffff, 0x00000000 },
+		{ HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
+			0xffffffff, 0x00000000 },
+
+		/* Buffer Manager Control Registers. */
+		{ BUFMGR_MB_POOL_ADDR, 0x0000,
+			0x00000000, 0x007fff80 },
+		{ BUFMGR_MB_POOL_SIZE, 0x0000,
+			0x00000000, 0x007fffff },
+		{ BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
+			0x00000000, 0x0000003f },
+		{ BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
+			0x00000000, 0x000001ff },
+		{ BUFMGR_MB_HIGH_WATER, 0x0000,
+			0x00000000, 0x000001ff },
+		{ BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
+			0xffffffff, 0x00000000 },
+		{ BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
+			0xffffffff, 0x00000000 },
+	
+		/* Mailbox Registers */
+		{ GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
+			0x00000000, 0x000001ff },
+		{ GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
+			0x00000000, 0x000001ff },
+		{ GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
+			0x00000000, 0x000007ff },
+		{ GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
+			0x00000000, 0x000001ff },
+
+		{ 0xffff, 0x0000, 0x00000000, 0x00000000 },
+	};
+
+	if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
+		is_5705 = 1;
+	else
+		is_5705 = 0;
+
+	for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
+		if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
+			continue;
+
+		if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
+			continue;
+
+		if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
+		    (reg_tbl[i].flags & TG3_FL_NOT_5788))
+			continue;
+
+		offset = (u32) reg_tbl[i].offset;
+		read_mask = reg_tbl[i].read_mask;
+		write_mask = reg_tbl[i].write_mask;
+
+		/* Save the original register content */
+		save_val = tr32(offset);
+
+		/* Determine the read-only value. */
+		read_val = save_val & read_mask;
+
+		/* Write zero to the register, then make sure the read-only bits
+		 * are not changed and the read/write bits are all zeros.
+		 */
+		tw32(offset, 0);
+
+		val = tr32(offset);
+
+		/* Test the read-only and read/write bits. */
+		if (((val & read_mask) != read_val) || (val & write_mask))
+			goto out;
+
+		/* Write ones to all the bits defined by RdMask and WrMask, then
+		 * make sure the read-only bits are not changed and the
+		 * read/write bits are all ones.
+		 */
+		tw32(offset, read_mask | write_mask);
+
+		val = tr32(offset);
+
+		/* Test the read-only bits. */
+		if ((val & read_mask) != read_val)
+			goto out;
+
+		/* Test the read/write bits. */
+		if ((val & write_mask) != write_mask)
+			goto out;
+
+		tw32(offset, save_val);
+	}
+
+	return 0;
+
+out:
+	printk(KERN_ERR PFX "Register test failed at offset %x\n", offset);
+	tw32(offset, save_val);
+	return -EIO;
+}
+
+static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
+{
+	static u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
+	int i;
+	u32 j;
+
+	for (i = 0; i < sizeof(test_pattern)/sizeof(u32); i++) {
+		for (j = 0; j < len; j += 4) {
+			u32 val;
+
+			tg3_write_mem(tp, offset + j, test_pattern[i]);
+			tg3_read_mem(tp, offset + j, &val);
+			if (val != test_pattern[i])
+				return -EIO;
+		}
+	}
+	return 0;
+}
+
+static int tg3_test_memory(struct tg3 *tp)
+{
+	static struct mem_entry {
+		u32 offset;
+		u32 len;
+	} mem_tbl_570x[] = {
+		{ 0x00000000, 0x01000},
+		{ 0x00002000, 0x1c000},
+		{ 0xffffffff, 0x00000}
+	}, mem_tbl_5705[] = {
+		{ 0x00000100, 0x0000c},
+		{ 0x00000200, 0x00008},
+		{ 0x00000b50, 0x00400},
+		{ 0x00004000, 0x00800},
+		{ 0x00006000, 0x01000},
+		{ 0x00008000, 0x02000},
+		{ 0x00010000, 0x0e000},
+		{ 0xffffffff, 0x00000}
+	};
+	struct mem_entry *mem_tbl;
+	int err = 0;
+	int i;
+
+	if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
+		mem_tbl = mem_tbl_5705;
+	else
+		mem_tbl = mem_tbl_570x;
+
+	for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
+		if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
+		    mem_tbl[i].len)) != 0)
+			break;
+	}
+	
+	return err;
+}
+
+static int tg3_test_loopback(struct tg3 *tp)
+{
+	u32 mac_mode, send_idx, rx_start_idx, rx_idx, tx_idx, opaque_key;
+	u32 desc_idx;
+	struct sk_buff *skb, *rx_skb;
+	u8 *tx_data;
+	dma_addr_t map;
+	int num_pkts, tx_len, rx_len, i, err;
+	struct tg3_rx_buffer_desc *desc;
+
+	if (!netif_running(tp->dev))
+		return -ENODEV;
+
+	err = -EIO;
+
+	tg3_abort_hw(tp, 1);
+
+	/* Clearing this flag to keep interrupts disabled */
+	tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
+	tg3_reset_hw(tp);
+
+	mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
+		   MAC_MODE_PORT_INT_LPBACK | MAC_MODE_LINK_POLARITY |
+		   MAC_MODE_PORT_MODE_GMII;
+	tw32(MAC_MODE, mac_mode);
+
+	tx_len = 1514;
+	skb = dev_alloc_skb(tx_len);
+	tx_data = skb_put(skb, tx_len);
+	memcpy(tx_data, tp->dev->dev_addr, 6);
+	memset(tx_data + 6, 0x0, 8);
+
+	tw32(MAC_RX_MTU_SIZE, tx_len + 4);
+
+	for (i = 14; i < tx_len; i++)
+		tx_data[i] = (u8) (i & 0xff);
+
+	map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
+
+	tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
+	     HOSTCC_MODE_NOW);
+
+	udelay(10);
+
+	rx_start_idx = tp->hw_status->idx[0].rx_producer;
+
+	send_idx = 0;
+	num_pkts = 0;
+
+	tg3_set_txd(tp, send_idx, map, tx_len, 0, 1);
+
+	send_idx++;
+	num_pkts++;
+
+	tw32_tx_mbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, send_idx);
+	tr32(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW);
+
+	udelay(10);
+
+	for (i = 0; i < 10; i++) {
+		tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
+		       HOSTCC_MODE_NOW);
+
+		udelay(10);
+
+		tx_idx = tp->hw_status->idx[0].tx_consumer;
+		rx_idx = tp->hw_status->idx[0].rx_producer;
+		if ((tx_idx == send_idx) &&
+		    (rx_idx == (rx_start_idx + num_pkts)))
+			break;
+	}
+
+	pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
+	dev_kfree_skb(skb);
+
+	if (tx_idx != send_idx)
+		goto out;
+
+	if (rx_idx != rx_start_idx + num_pkts)
+		goto out;
+
+	desc = &tp->rx_rcb[rx_start_idx];
+	desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
+	opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
+	if (opaque_key != RXD_OPAQUE_RING_STD)
+		goto out;
+
+	if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
+	    (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
+		goto out;
+
+	rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
+	if (rx_len != tx_len)
+		goto out;
+
+	rx_skb = tp->rx_std_buffers[desc_idx].skb;
+
+	map = pci_unmap_addr(&tp->rx_std_buffers[desc_idx], mapping);
+	pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
+
+	for (i = 14; i < tx_len; i++) {
+		if (*(rx_skb->data + i) != (u8) (i & 0xff))
+			goto out;
+	}
+	err = 0;
+	
+	/* tg3_free_rings will unmap and free the rx_skb */
+out:
+	return err;
+}
+
+static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
+			  u64 *data)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
+
+	if (tg3_test_nvram(tp) != 0) {
+		etest->flags |= ETH_TEST_FL_FAILED;
+		data[0] = 1;
+	}
+	if (tg3_test_link(tp) != 0) {
+		etest->flags |= ETH_TEST_FL_FAILED;
+		data[1] = 1;
+	}
+	if (etest->flags & ETH_TEST_FL_OFFLINE) {
+		if (netif_running(dev))
+			tg3_netif_stop(tp);
+
+		spin_lock_irq(&tp->lock);
+		spin_lock(&tp->tx_lock);
+
+		tg3_halt(tp, RESET_KIND_SUSPEND, 1);
+		tg3_nvram_lock(tp);
+		tg3_halt_cpu(tp, RX_CPU_BASE);
+		if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
+			tg3_halt_cpu(tp, TX_CPU_BASE);
+		tg3_nvram_unlock(tp);
+
+		if (tg3_test_registers(tp) != 0) {
+			etest->flags |= ETH_TEST_FL_FAILED;
+			data[2] = 1;
+		}
+		if (tg3_test_memory(tp) != 0) {
+			etest->flags |= ETH_TEST_FL_FAILED;
+			data[3] = 1;
+		}
+		if (tg3_test_loopback(tp) != 0) {
+			etest->flags |= ETH_TEST_FL_FAILED;
+			data[4] = 1;
+		}
+
+		spin_unlock(&tp->tx_lock);
+		spin_unlock_irq(&tp->lock);
+		if (tg3_test_interrupt(tp) != 0) {
+			etest->flags |= ETH_TEST_FL_FAILED;
+			data[5] = 1;
+		}
+		spin_lock_irq(&tp->lock);
+		spin_lock(&tp->tx_lock);
+
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
+		if (netif_running(dev)) {
+			tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
+			tg3_init_hw(tp);
+			tg3_netif_start(tp);
+		}
+		spin_unlock(&tp->tx_lock);
+		spin_unlock_irq(&tp->lock);
+	}
+}
+
 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
 	struct mii_ioctl_data *data = if_mii(ifr);
@@ -7331,6 +7870,8 @@ static struct ethtool_ops tg3_ethtool_ops = {
 	.get_tso		= ethtool_op_get_tso,
 	.set_tso		= tg3_set_tso,
 #endif
+	.self_test_count	= tg3_get_test_count,
+	.self_test		= tg3_self_test,
 	.get_strings		= tg3_get_strings,
 	.get_stats_count	= tg3_get_stats_count,
 	.get_ethtool_stats	= tg3_get_ethtool_stats,
@@ -9478,7 +10019,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	    (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
 		pci_save_state(tp->pdev);
 		tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
-		tg3_halt(tp, 1);
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 	}
 
 	err = tg3_test_dma(tp);
@@ -9605,7 +10146,7 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	spin_lock_irq(&tp->lock);
 	spin_lock(&tp->tx_lock);
-	tg3_halt(tp, 1);
+	tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 	spin_unlock(&tp->tx_lock);
 	spin_unlock_irq(&tp->lock);
 
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index da5bd33d982..fc5263c6b10 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -32,6 +32,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/dma-mapping.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -289,6 +290,8 @@ static void ahci_host_stop(struct ata_host_set *host_set)
 {
 	struct ahci_host_priv *hpriv = host_set->private_data;
 	kfree(hpriv);
+
+	ata_host_stop(host_set);
 }
 
 static int ahci_port_start(struct ata_port *ap)
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 550c9921691..7c02b7dc709 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -2488,7 +2488,7 @@ ahd_linux_dv_thread(void *data)
 	sprintf(current->comm, "ahd_dv_%d", ahd->unit);
 #else
 	daemonize("ahd_dv_%d", ahd->unit);
-	current->flags |= PF_FREEZE;
+	current->flags |= PF_NOFREEZE;
 #endif
 	unlock_kernel();
 
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 3867f91ef8c..54c52349adc 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -153,6 +153,7 @@ static struct ata_port_operations piix_pata_ops = {
 
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_operations piix_sata_ops = {
@@ -180,6 +181,7 @@ static struct ata_port_operations piix_sata_ops = {
 
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info piix_port_info[] = {
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 63d3f70d06e..30a88f0e7bd 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -3322,6 +3322,13 @@ void ata_port_stop (struct ata_port *ap)
 	dma_free_coherent(dev, ATA_PRD_TBL_SZ, ap->prd, ap->prd_dma);
 }
 
+void ata_host_stop (struct ata_host_set *host_set)
+{
+	if (host_set->mmio_base)
+		iounmap(host_set->mmio_base);
+}
+
+
 /**
  *	ata_host_remove - Unregister SCSI host structure with upper layers
  *	@ap: Port to unregister
@@ -3878,10 +3885,6 @@ void ata_pci_remove_one (struct pci_dev *pdev)
 	}
 
 	free_irq(host_set->irq, host_set);
-	if (host_set->ops->host_stop)
-		host_set->ops->host_stop(host_set);
-	if (host_set->mmio_base)
-		iounmap(host_set->mmio_base);
 
 	for (i = 0; i < host_set->n_ports; i++) {
 		ap = host_set->ports[i];
@@ -3900,6 +3903,9 @@ void ata_pci_remove_one (struct pci_dev *pdev)
 		scsi_host_put(ap->host);
 	}
 
+	if (host_set->ops->host_stop)
+		host_set->ops->host_stop(host_set);
+
 	kfree(host_set);
 
 	pci_release_regions(pdev);
@@ -3997,6 +4003,7 @@ EXPORT_SYMBOL_GPL(ata_chk_err);
 EXPORT_SYMBOL_GPL(ata_exec_command);
 EXPORT_SYMBOL_GPL(ata_port_start);
 EXPORT_SYMBOL_GPL(ata_port_stop);
+EXPORT_SYMBOL_GPL(ata_host_stop);
 EXPORT_SYMBOL_GPL(ata_interrupt);
 EXPORT_SYMBOL_GPL(ata_qc_prep);
 EXPORT_SYMBOL_GPL(ata_bmdma_setup);
diff --git a/drivers/scsi/libata.h b/drivers/scsi/libata.h
index 6518226b8f8..d90430bbb0d 100644
--- a/drivers/scsi/libata.h
+++ b/drivers/scsi/libata.h
@@ -26,7 +26,7 @@
 #define __LIBATA_H__
 
 #define DRV_NAME	"libata"
-#define DRV_VERSION	"1.10"	/* must be exactly four chars */
+#define DRV_VERSION	"1.11"	/* must be exactly four chars */
 
 struct ata_scsi_args {
 	u16			*id;
diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c
index 69009f853a4..b0403ccd8a2 100644
--- a/drivers/scsi/sata_nv.c
+++ b/drivers/scsi/sata_nv.c
@@ -329,6 +329,8 @@ static void nv_host_stop (struct ata_host_set *host_set)
 		host->host_desc->disable_hotplug(host_set);
 
 	kfree(host);
+
+	ata_host_stop(host_set);
 }
 
 static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index c4e9e029812..b18c90582e6 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -122,6 +122,7 @@ static struct ata_port_operations pdc_ata_ops = {
 	.scr_write		= pdc_sata_scr_write,
 	.port_start		= pdc_port_start,
 	.port_stop		= pdc_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info pdc_port_info[] = {
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index dfd36210471..1383e8a28d7 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -536,6 +536,8 @@ static void qs_host_stop(struct ata_host_set *host_set)
 
 	writeb(0, mmio_base + QS_HCT_CTRL); /* disable host interrupts */
 	writeb(QS_CNFG3_GSRST, mmio_base + QS_HCF_CNFG3); /* global reset */
+
+	ata_host_stop(host_set);
 }
 
 static void qs_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 2b2ff48be39..238580d244e 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -161,6 +161,7 @@ static struct ata_port_operations sil_ops = {
 	.scr_write		= sil_scr_write,
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info sil_port_info[] = {
diff --git a/drivers/scsi/sata_sis.c b/drivers/scsi/sata_sis.c
index 5105ddd0844..e418b89c6b9 100644
--- a/drivers/scsi/sata_sis.c
+++ b/drivers/scsi/sata_sis.c
@@ -114,6 +114,7 @@ static struct ata_port_operations sis_ops = {
 	.scr_write		= sis_scr_write,
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info sis_port_info = {
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 05075bd3a89..edef1fa969f 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -313,6 +313,7 @@ static struct ata_port_operations k2_sata_ops = {
 	.scr_write		= k2_sata_scr_write,
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static void k2_sata_setup_port(struct ata_ioports *port, unsigned long base)
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index 70118650c46..140cea05de3 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -245,6 +245,8 @@ static void pdc20621_host_stop(struct ata_host_set *host_set)
 
 	iounmap(dimm_mmio);
 	kfree(hpriv);
+
+	ata_host_stop(host_set);
 }
 
 static int pdc_port_start(struct ata_port *ap)
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
index 0bff4f475f2..a71fb54eebd 100644
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -113,6 +113,7 @@ static struct ata_port_operations uli_ops = {
 
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info uli_port_info = {
diff --git a/drivers/scsi/sata_via.c b/drivers/scsi/sata_via.c
index 3a783066727..f43183c19a1 100644
--- a/drivers/scsi/sata_via.c
+++ b/drivers/scsi/sata_via.c
@@ -134,6 +134,7 @@ static struct ata_port_operations svia_sata_ops = {
 
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static struct ata_port_info svia_port_info = {
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 2c28f0ad73c..c5e09dc6f3d 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -21,6 +21,7 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
 #include "scsi.h"
 #include <scsi/scsi_host.h>
 #include <linux/libata.h>
@@ -230,6 +231,7 @@ static struct ata_port_operations vsc_sata_ops = {
 	.scr_write		= vsc_sata_scr_write,
 	.port_start		= ata_port_start,
 	.port_stop		= ata_port_stop,
+	.host_stop		= ata_host_stop,
 };
 
 static void __devinit vsc_sata_setup_port(struct ata_ioports *port, unsigned long base)
diff --git a/drivers/usb/media/pwc/pwc-ctrl.c b/drivers/usb/media/pwc/pwc-ctrl.c
index 3e1e4fe20d8..53099190952 100644
--- a/drivers/usb/media/pwc/pwc-ctrl.c
+++ b/drivers/usb/media/pwc/pwc-ctrl.c
@@ -48,8 +48,6 @@
 #include "pwc-uncompress.h"
 #include "pwc-kiara.h"
 #include "pwc-timon.h"
-#include "pwc-dec1.h"
-#include "pwc-dec23.h"
 
 /* Request types: video */
 #define SET_LUM_CTL			0x01
diff --git a/drivers/usb/media/pwc/pwc-uncompress.c b/drivers/usb/media/pwc/pwc-uncompress.c
index c596083f06b..bc3b1635eab 100644
--- a/drivers/usb/media/pwc/pwc-uncompress.c
+++ b/drivers/usb/media/pwc/pwc-uncompress.c
@@ -29,8 +29,6 @@
 
 #include "pwc.h"
 #include "pwc-uncompress.h"
-#include "pwc-dec1.h"
-#include "pwc-dec23.h"
 
 int pwc_decompress(struct pwc_device *pdev)
 {
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 549e2293926..25f9a9a65c2 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -228,17 +228,17 @@ MODULE_DESCRIPTION(
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
 
-static int accel        __initdata = 1;
-static int vram         __initdata = 4;
-static int hwcursor     __initdata = 1;
-static int mtrr         __initdata = 1;
-static int fixed        __initdata = 0;
-static int noinit       __initdata = 0;
-static int noregister   __initdata = 0;
-static int probeonly    __initdata = 0;
-static int idonly       __initdata = 0;
-static int bailearly    __initdata = 0;
-static char *mode       __initdata = NULL;
+static int accel        = 1;
+static int vram         = 4;
+static int hwcursor     = 1;
+static int mtrr         = 1;
+static int fixed        = 0;
+static int noinit       = 0;
+static int noregister   = 0;
+static int probeonly    = 0;
+static int idonly       = 0;
+static int bailearly    = 0;
+static char *mode       = NULL;
 
 module_param(accel, bool, S_IRUGO);
 MODULE_PARM_DESC(accel, "Enable console acceleration");
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 14a0d339d03..4bf43ea87c4 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -23,7 +23,6 @@
 #include "kern_util.h"
 #include "kern.h"
 #include "user_util.h"
-#include "2_5compat.h"
 #include "init.h"
 
 struct hostfs_inode_info {
diff --git a/fs/udf/udftime.c b/fs/udf/udftime.c
index 457a8fe2857..85d8dbe843f 100644
--- a/fs/udf/udftime.c
+++ b/fs/udf/udftime.c
@@ -46,7 +46,7 @@
 #endif
 
 /* How many days come before each month (0-12).  */
-const unsigned short int __mon_yday[2][13] =
+static const unsigned short int __mon_yday[2][13] =
 {
 	/* Normal years.  */
 	{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h
index 40c54f69780..c3470984983 100644
--- a/include/asm-i386/timer.h
+++ b/include/asm-i386/timer.h
@@ -53,6 +53,7 @@ extern struct init_timer_opts timer_cyclone_init;
 
 extern unsigned long calibrate_tsc(void);
 extern void init_cpu_khz(void);
+extern int recalibrate_cpu_khz(void);
 #ifdef CONFIG_HPET_TIMER
 extern struct init_timer_opts timer_hpet_init;
 extern unsigned long calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr);
diff --git a/include/asm-ia64/perfmon.h b/include/asm-ia64/perfmon.h
index ed5416c5b1a..7f3333dd00e 100644
--- a/include/asm-ia64/perfmon.h
+++ b/include/asm-ia64/perfmon.h
@@ -177,6 +177,10 @@ typedef union {
 
 extern long perfmonctl(int fd, int cmd, void *arg, int narg);
 
+typedef struct {
+	void (*handler)(int irq, void *arg, struct pt_regs *regs);
+} pfm_intr_handler_desc_t;
+
 extern void pfm_save_regs (struct task_struct *);
 extern void pfm_load_regs (struct task_struct *);
 
@@ -187,6 +191,10 @@ extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info,
 extern void pfm_inherit(struct task_struct *task, struct pt_regs *regs);
 extern void pfm_init_percpu(void);
 extern void pfm_handle_work(void);
+extern int  pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
+extern int  pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
+
+
 
 /*
  * Reset PMD register flags
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index 56d74ca76b5..eb0395ad0d6 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -115,6 +115,13 @@
 #define SAL_IROUTER_INTR_XMIT	SAL_CONSOLE_INTR_XMIT
 #define SAL_IROUTER_INTR_RECV	SAL_CONSOLE_INTR_RECV
 
+/*
+ * Error Handling Features
+ */
+#define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV	0x1
+#define SAL_ERR_FEAT_LOG_SBES			0x2
+#define SAL_ERR_FEAT_MFR_OVERRIDE		0x4
+#define SAL_ERR_FEAT_SBE_THRESHOLD		0xffff0000
 
 /*
  * SAL Error Codes
@@ -342,6 +349,25 @@ ia64_sn_plat_cpei_handler(void)
 }
 
 /*
+ * Set Error Handling Features
+ */
+static inline u64
+ia64_sn_plat_set_error_handling_features(void)
+{
+	struct ia64_sal_retval ret_stuff;
+
+	ret_stuff.status = 0;
+	ret_stuff.v0 = 0;
+	ret_stuff.v1 = 0;
+	ret_stuff.v2 = 0;
+	SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
+		(SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES),
+		0, 0, 0, 0, 0, 0);
+
+	return ret_stuff.status;
+}
+
+/*
  * Checks for console input.
  */
 static inline u64
@@ -472,7 +498,7 @@ static inline u64
 ia64_sn_pod_mode(void)
 {
 	struct ia64_sal_retval isrv;
-	SAL_CALL(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
+	SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
 	if (isrv.status)
 		return 0;
 	return isrv.v0;
diff --git a/include/asm-ppc/cpm2.h b/include/asm-ppc/cpm2.h
index 42fd1068cf2..c5883dbed63 100644
--- a/include/asm-ppc/cpm2.h
+++ b/include/asm-ppc/cpm2.h
@@ -1039,6 +1039,52 @@ typedef struct im_idma {
 #define CMXSCR_TS4CS_CLK7  0x00000006   /* SCC4 Tx Clock Source is CLK7 */
 #define CMXSCR_TS4CS_CLK8  0x00000007   /* SCC4 Tx Clock Source is CLK8 */
 
+/*-----------------------------------------------------------------------
+ * SIUMCR - SIU Module Configuration Register				 4-31
+ */
+#define SIUMCR_BBD	0x80000000	/* Bus Busy Disable		*/
+#define SIUMCR_ESE	0x40000000	/* External Snoop Enable	*/
+#define SIUMCR_PBSE	0x20000000	/* Parity Byte Select Enable	*/
+#define SIUMCR_CDIS	0x10000000	/* Core Disable			*/
+#define SIUMCR_DPPC00	0x00000000	/* Data Parity Pins Configuration*/
+#define SIUMCR_DPPC01	0x04000000	/* - " -			*/
+#define SIUMCR_DPPC10	0x08000000	/* - " -			*/
+#define SIUMCR_DPPC11	0x0c000000	/* - " -			*/
+#define SIUMCR_L2CPC00	0x00000000	/* L2 Cache Pins Configuration	*/
+#define SIUMCR_L2CPC01	0x01000000	/* - " -			*/
+#define SIUMCR_L2CPC10	0x02000000	/* - " -			*/
+#define SIUMCR_L2CPC11	0x03000000	/* - " -			*/
+#define SIUMCR_LBPC00	0x00000000	/* Local Bus Pins Configuration	*/
+#define SIUMCR_LBPC01	0x00400000	/* - " -			*/
+#define SIUMCR_LBPC10	0x00800000	/* - " -			*/
+#define SIUMCR_LBPC11	0x00c00000	/* - " -			*/
+#define SIUMCR_APPC00	0x00000000	/* Address Parity Pins Configuration*/
+#define SIUMCR_APPC01	0x00100000	/* - " -			*/
+#define SIUMCR_APPC10	0x00200000	/* - " -			*/
+#define SIUMCR_APPC11	0x00300000	/* - " -			*/
+#define SIUMCR_CS10PC00	0x00000000	/* CS10 Pin Configuration	*/
+#define SIUMCR_CS10PC01	0x00040000	/* - " -			*/
+#define SIUMCR_CS10PC10	0x00080000	/* - " -			*/
+#define SIUMCR_CS10PC11	0x000c0000	/* - " -			*/
+#define SIUMCR_BCTLC00	0x00000000	/* Buffer Control Configuration	*/
+#define SIUMCR_BCTLC01	0x00010000	/* - " -			*/
+#define SIUMCR_BCTLC10	0x00020000	/* - " -			*/
+#define SIUMCR_BCTLC11	0x00030000	/* - " -			*/
+#define SIUMCR_MMR00	0x00000000	/* Mask Masters Requests	*/
+#define SIUMCR_MMR01	0x00004000	/* - " -			*/
+#define SIUMCR_MMR10	0x00008000	/* - " -			*/
+#define SIUMCR_MMR11	0x0000c000	/* - " -			*/
+#define SIUMCR_LPBSE	0x00002000	/* LocalBus Parity Byte Select Enable*/
+
+/*-----------------------------------------------------------------------
+ * SCCR - System Clock Control Register					 9-8
+*/
+#define SCCR_PCI_MODE	0x00000100	/* PCI Mode	*/
+#define SCCR_PCI_MODCK	0x00000080	/* Value of PCI_MODCK pin	*/
+#define SCCR_PCIDF_MSK	0x00000078	/* PCI division factor	*/
+#define SCCR_PCIDF_SHIFT 3
+
+
 #endif /* __CPM2__ */
 #endif /* __KERNEL__ */
 
diff --git a/include/asm-ppc/m8260_pci.h b/include/asm-ppc/m8260_pci.h
index 163a6b91d5b..bf9e05dd54b 100644
--- a/include/asm-ppc/m8260_pci.h
+++ b/include/asm-ppc/m8260_pci.h
@@ -19,6 +19,7 @@
  * Define the vendor/device ID for the MPC8265.
  */
 #define	PCI_DEVICE_ID_MPC8265	((0x18C0 << 16) | PCI_VENDOR_ID_MOTOROLA)
+#define	PCI_DEVICE_ID_MPC8272	((0x18C1 << 16) | PCI_VENDOR_ID_MOTOROLA)
 
 #define M8265_PCIBR0	0x101ac
 #define M8265_PCIBR1	0x101b0
diff --git a/include/asm-ppc/mpc8260.h b/include/asm-ppc/mpc8260.h
index d820894e599..89eb8a2ac69 100644
--- a/include/asm-ppc/mpc8260.h
+++ b/include/asm-ppc/mpc8260.h
@@ -41,7 +41,7 @@
 #endif
 
 #ifdef CONFIG_PCI_8260
-#include <syslib/m8260_pci.h>
+#include <syslib/m82xx_pci.h>
 #endif
 
 /* Make sure the memory translation stuff is there if PCI not used.
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h
index d82f883d8e6..4bbbd9f3c37 100644
--- a/include/asm-sh/thread_info.h
+++ b/include/asm-sh/thread_info.h
@@ -27,7 +27,7 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 /*
  * macros/functions for gaining access to the thread information structure
diff --git a/include/asm-sh64/thread_info.h b/include/asm-sh64/thread_info.h
index e65f394da47..8a32d6bd0b7 100644
--- a/include/asm-sh64/thread_info.h
+++ b/include/asm-sh64/thread_info.h
@@ -73,7 +73,7 @@ static inline struct thread_info *current_thread_info(void)
 
 #define THREAD_SIZE  8192
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 /* thread information flags */
 #define TIF_SYSCALL_TRACE	0	/* syscall trace active */
diff --git a/include/asm-um/page.h b/include/asm-um/page.h
index 504ea8e486b..5afee8a8cdf 100644
--- a/include/asm-um/page.h
+++ b/include/asm-um/page.h
@@ -98,7 +98,13 @@ extern unsigned long uml_physmem;
 
 extern unsigned long to_phys(void *virt);
 extern void *to_virt(unsigned long phys);
-#define __pa(virt) to_phys((void *) virt)
+
+/* Cast to unsigned long before casting to void * to avoid a warning from
+ * mmap_kmem about cutting a long long down to a void *.  Not sure that
+ * casting is the right thing, but 32-bit UML can't have 64-bit virtual
+ * addresses
+ */
+#define __pa(virt) to_phys((void *) (unsigned long) virt)
 #define __va(phys) to_virt((unsigned long) phys)
 
 #define page_to_pfn(page) ((page) - mem_map)
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index 510e513c7f8..a8804092031 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -114,17 +114,9 @@ extern unsigned long end_iomem;
 extern unsigned long pg0[1024];
 
 /*
- * BAD_PAGETABLE is used when we need a bogus page-table, while
- * BAD_PAGE is used for a bogus page.
- *
  * ZERO_PAGE is a global shared page that is always zero: used
  * for zero-mapped memory areas etc..
  */
-extern pte_t __bad_page(void);
-extern pte_t * __bad_pagetable(void);
-
-#define BAD_PAGETABLE __bad_pagetable()
-#define BAD_PAGE __bad_page()
 
 #define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)
 
diff --git a/include/asm-um/thread_info.h b/include/asm-um/thread_info.h
index a10ea155907..1feaaf148ef 100644
--- a/include/asm-um/thread_info.h
+++ b/include/asm-um/thread_info.h
@@ -41,18 +41,17 @@ struct thread_info {
 #define init_thread_info	(init_thread_union.thread_info)
 #define init_stack		(init_thread_union.stack)
 
+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
 {
 	struct thread_info *ti;
-	unsigned long mask = PAGE_SIZE *
-		(1 << CONFIG_KERNEL_STACK_ORDER) - 1;
-        ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
+	unsigned long mask = THREAD_SIZE - 1;
+	ti = (struct thread_info *) (((unsigned long) &ti) & ~mask);
 	return ti;
 }
 
 /* thread information allocation */
-#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE)
 #define alloc_thread_info(tsk) \
 	((struct thread_info *) kmalloc(THREAD_SIZE, GFP_KERNEL))
 #define free_thread_info(ti) kfree(ti)
@@ -62,7 +61,7 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif
 
-#define PREEMPT_ACTIVE		0x4000000
+#define PREEMPT_ACTIVE		0x10000000
 
 #define TIF_SYSCALL_TRACE	0	/* syscall trace active */
 #define TIF_SIGPENDING		1	/* signal pending */
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index f21af067d01..927daa86c9b 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -49,7 +49,7 @@ int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
 /* Frequency values here are CPU kHz so that hardware which doesn't run 
  * with some frequencies can complain without having to guess what per 
  * cent / per mille means. 
- * Maximum transition latency is in microseconds - if it's unknown,
+ * Maximum transition latency is in nanoseconds - if it's unknown,
  * CPUFREQ_ETERNAL shall be used.
  */
 
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 220748b7abe..a1478258d00 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -56,18 +56,32 @@ static inline int is_zero_ether_addr(const u8 *addr)
 }
 
 /**
+ * is_multicast_ether_addr - Determine if the given Ethernet address is a
+ * multicast address.
+ *
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is a multicast address.
+ */
+static inline int is_multicast_ether_addr(const u8 *addr)
+{
+	return addr[0] & 0x01;
+}
+
+/**
  * is_valid_ether_addr - Determine if the given Ethernet address is valid
  * @addr: Pointer to a six-byte array containing the Ethernet address
  *
  * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
- * a multicast address, and is not FF:FF:FF:FF:FF:FF.  The multicast
- * and FF:FF:... tests are combined into the single test "!(addr[0]&1)".
+ * a multicast address, and is not FF:FF:FF:FF:FF:FF.
  *
  * Return true if the address is valid.
  */
 static inline int is_valid_ether_addr(const u8 *addr)
 {
-	return !(addr[0]&1) && !is_zero_ether_addr(addr);
+	/* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
+	 * explicitly check for it here. */
+	return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
 }
 
 /**
@@ -83,6 +97,6 @@ static inline void random_ether_addr(u8 *addr)
 	addr [0] &= 0xfe;	/* clear multicast bit */
 	addr [0] |= 0x02;	/* set local assignment bit (IEEE802) */
 }
-#endif
+#endif	/* __KERNEL__ */
 
 #endif	/* _LINUX_ETHERDEVICE_H */
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index c85b210490e..a0ab26aab45 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -256,6 +256,7 @@ struct net_device;
 u32 ethtool_op_get_link(struct net_device *dev);
 u32 ethtool_op_get_tx_csum(struct net_device *dev);
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data);
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data);
 u32 ethtool_op_get_sg(struct net_device *dev);
 int ethtool_op_set_sg(struct net_device *dev, u32 data);
 u32 ethtool_op_get_tso(struct net_device *dev);
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index ebc712e9106..8336dba1897 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -43,13 +43,17 @@
 #define __IRQ_MASK(x)	((1UL << (x))-1)
 
 #define PREEMPT_MASK	(__IRQ_MASK(PREEMPT_BITS) << PREEMPT_SHIFT)
-#define HARDIRQ_MASK	(__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
 #define SOFTIRQ_MASK	(__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT)
+#define HARDIRQ_MASK	(__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
 
 #define PREEMPT_OFFSET	(1UL << PREEMPT_SHIFT)
 #define SOFTIRQ_OFFSET	(1UL << SOFTIRQ_SHIFT)
 #define HARDIRQ_OFFSET	(1UL << HARDIRQ_SHIFT)
 
+#if PREEMPT_ACTIVE < (1 << (HARDIRQ_SHIFT + HARDIRQ_BITS))
+#error PREEMPT_ACTIVE is too low!
+#endif
+
 #define hardirq_count()	(preempt_count() & HARDIRQ_MASK)
 #define softirq_count()	(preempt_count() & SOFTIRQ_MASK)
 #define irq_count()	(preempt_count() & (HARDIRQ_MASK | SOFTIRQ_MASK))
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 6fafb27877a..7e1e15f934f 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -29,6 +29,7 @@ struct ipv4_devconf
 	int	no_xfrm;
 	int	no_policy;
 	int	force_igmp_version;
+	int	promote_secondaries;
 	void	*sysctl;
 };
 
@@ -71,6 +72,7 @@ struct in_device
 #define IN_DEV_SEC_REDIRECTS(in_dev)	(ipv4_devconf.secure_redirects || (in_dev)->cnf.secure_redirects)
 #define IN_DEV_IDTAG(in_dev)		((in_dev)->cnf.tag)
 #define IN_DEV_MEDIUM_ID(in_dev)	((in_dev)->cnf.medium_id)
+#define IN_DEV_PROMOTE_SECONDARIES(in_dev)	(ipv4_devconf.promote_secondaries || (in_dev)->cnf.promote_secondaries)
 
 #define IN_DEV_RX_REDIRECTS(in_dev) \
 	((IN_DEV_FORWARD(in_dev) && \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 1f7e2039a04..e74f301e9ba 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -410,6 +410,7 @@ extern u8 ata_chk_err(struct ata_port *ap);
 extern void ata_exec_command(struct ata_port *ap, struct ata_taskfile *tf);
 extern int ata_port_start (struct ata_port *ap);
 extern void ata_port_stop (struct ata_port *ap);
+extern void ata_host_stop (struct ata_host_set *host_set);
 extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
 extern void ata_qc_prep(struct ata_queued_cmd *qc);
 extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b25bd02720d..470af8c1a4a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -401,7 +401,7 @@ struct net_device
 	} reg_state;
 
 	/* Net device features */
-	int			features;
+	unsigned long		features;
 #define NETIF_F_SG		1	/* Scatter/gather IO. */
 #define NETIF_F_IP_CSUM		2	/* Can checksum only TCP/UDP over IPv4. */
 #define NETIF_F_NO_CSUM		4	/* Does not require checksum. F.e. loopack. */
@@ -913,6 +913,7 @@ extern void		dev_mc_discard(struct net_device *dev);
 extern void		dev_set_promiscuity(struct net_device *dev, int inc);
 extern void		dev_set_allmulti(struct net_device *dev, int inc);
 extern void		netdev_state_change(struct net_device *dev);
+extern void		netdev_features_change(struct net_device *dev);
 /* Load a device via the kmod */
 extern void		dev_load(const char *name);
 extern void		dev_mcast_init(void);
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 9303a003e9a..5937dd6053c 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -56,6 +56,7 @@ extern int notifier_call_chain(struct notifier_block **n, unsigned long val, voi
 #define NETDEV_CHANGEADDR	0x0008
 #define NETDEV_GOING_DOWN	0x0009
 #define NETDEV_CHANGENAME	0x000A
+#define NETDEV_FEAT_CHANGE	0x000B
 
 #define SYS_DOWN	0x0001	/* Notify of system down */
 #define SYS_RESTART	SYS_DOWN
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 772998147e3..23032d9d607 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -399,6 +399,7 @@ enum
 	NET_IPV4_CONF_FORCE_IGMP_VERSION=17,
 	NET_IPV4_CONF_ARP_ANNOUNCE=18,
 	NET_IPV4_CONF_ARP_IGNORE=19,
+	NET_IPV4_CONF_PROMOTE_SECONDARIES=20,
 	__NET_IPV4_CONF_MAX
 };
 
diff --git a/include/net/route.h b/include/net/route.h
index efe92b239ef..d34ca8fc675 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -181,9 +181,6 @@ static inline int ip_route_newports(struct rtable **rp, u16 sport, u16 dport,
 		memcpy(&fl, &(*rp)->fl, sizeof(fl));
 		fl.fl_ip_sport = sport;
 		fl.fl_ip_dport = dport;
-#if defined(CONFIG_IP_ROUTE_MULTIPATH_CACHED)
-		fl.flags |= FLOWI_FLAG_MULTIPATHOLDROUTE;
-#endif
 		ip_rt_put(*rp);
 		*rp = NULL;
 		return ip_route_output_flow(rp, &fl, sk, 0);
diff --git a/init/Kconfig b/init/Kconfig
index d920baed109..a7660ccc693 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -442,7 +442,7 @@ config OBSOLETE_MODPARM
 
 config MODVERSIONS
 	bool "Module versioning support (EXPERIMENTAL)"
-	depends on MODULES && EXPERIMENTAL && !UML
+	depends on MODULES && EXPERIMENTAL
 	help
 	  Usually, you have to use modules compiled with your kernel.
 	  Saying Y here makes it sometimes possible to use modules
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 06b5a632399..436c7d93c00 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -119,8 +119,6 @@ fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs)
 		 */
 		desc->handler->ack(irq);
 		action_ret = handle_IRQ_event(irq, regs, desc->action);
-		if (!noirqdebug)
-			note_interrupt(irq, desc, action_ret);
 		desc->handler->end(irq);
 		return 1;
 	}
diff --git a/kernel/module.c b/kernel/module.c
index 5734ab09d3f..83b3d376708 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1758,6 +1758,7 @@ sys_init_module(void __user *umod,
 		const char __user *uargs)
 {
 	struct module *mod;
+	mm_segment_t old_fs = get_fs();
 	int ret = 0;
 
 	/* Must have permission */
@@ -1775,6 +1776,9 @@ sys_init_module(void __user *umod,
 		return PTR_ERR(mod);
 	}
 
+	/* flush the icache in correct context */
+	set_fs(KERNEL_DS);
+
 	/* Flush the instruction cache, since we've played with text */
 	if (mod->module_init)
 		flush_icache_range((unsigned long)mod->module_init,
@@ -1783,6 +1787,8 @@ sys_init_module(void __user *umod,
 	flush_icache_range((unsigned long)mod->module_core,
 			   (unsigned long)mod->module_core + mod->core_size);
 
+	set_fs(old_fs);
+
 	/* Now sew it into the lists.  They won't access us, since
            strong_try_module_get() will fail. */
 	stop_machine_run(__link_module, mod, NR_CPUS);
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ac23847ce0e..0c421295e61 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -151,7 +151,8 @@ config DEBUG_FS
 
 config FRAME_POINTER
 	bool "Compile the kernel with frame pointers"
-	depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV)
+	depends on DEBUG_KERNEL && ((X86 && !X86_64) || CRIS || M68K || M68KNOMMU || FRV || UML)
+	default y if DEBUG_INFO && UML
 	help
 	  If you say Y here the resulting kernel image will be slightly larger
 	  and slower, but it will give very useful debugging information.
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index d9b72fde433..f564ee99782 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -21,10 +21,7 @@
 
 static struct net_device_stats *br_dev_get_stats(struct net_device *dev)
 {
-	struct net_bridge *br;
-
-	br = dev->priv;
-
+	struct net_bridge *br = netdev_priv(dev);
 	return &br->statistics;
 }
 
@@ -54,9 +51,11 @@ int br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int br_dev_open(struct net_device *dev)
 {
-	netif_start_queue(dev);
+	struct net_bridge *br = netdev_priv(dev);
 
-	br_stp_enable_bridge(dev->priv);
+	br_features_recompute(br);
+	netif_start_queue(dev);
+	br_stp_enable_bridge(br);
 
 	return 0;
 }
@@ -67,7 +66,7 @@ static void br_dev_set_multicast_list(struct net_device *dev)
 
 static int br_dev_stop(struct net_device *dev)
 {
-	br_stp_disable_bridge(dev->priv);
+	br_stp_disable_bridge(netdev_priv(dev));
 
 	netif_stop_queue(dev);
 
@@ -76,7 +75,7 @@ static int br_dev_stop(struct net_device *dev)
 
 static int br_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if ((new_mtu < 68) || new_mtu > br_min_mtu(dev->priv))
+	if (new_mtu < 68 || new_mtu > br_min_mtu(netdev_priv(dev)))
 		return -EINVAL;
 
 	dev->mtu = new_mtu;
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 69872bf3b87..91bb895375f 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -314,6 +314,28 @@ int br_min_mtu(const struct net_bridge *br)
 	return mtu;
 }
 
+/*
+ * Recomputes features using slave's features
+ */
+void br_features_recompute(struct net_bridge *br)
+{
+	struct net_bridge_port *p;
+	unsigned long features, checksum;
+
+	features = NETIF_F_SG | NETIF_F_FRAGLIST 
+		| NETIF_F_HIGHDMA | NETIF_F_TSO;
+	checksum = NETIF_F_IP_CSUM;	/* least commmon subset */
+
+	list_for_each_entry(p, &br->port_list, list) {
+		if (!(p->dev->features 
+		      & (NETIF_F_IP_CSUM|NETIF_F_NO_CSUM|NETIF_F_HW_CSUM)))
+			checksum = 0;
+		features &= p->dev->features;
+	}
+
+	br->dev->features = features | checksum | NETIF_F_LLTX;
+}
+
 /* called with RTNL */
 int br_add_if(struct net_bridge *br, struct net_device *dev)
 {
@@ -368,6 +390,7 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 
 	spin_lock_bh(&br->lock);
 	br_stp_recalculate_bridge_id(br);
+	br_features_recompute(br);
 	spin_unlock_bh(&br->lock);
 
 	return 0;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 2b1cce46cab..8f5f2e73099 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -26,7 +26,7 @@ static int br_pass_frame_up_finish(struct sk_buff *skb)
 #ifdef CONFIG_NETFILTER_DEBUG
 	skb->nf_debug = 0;
 #endif
-	netif_rx(skb);
+	netif_receive_skb(skb);
 
 	return 0;
 }
@@ -54,6 +54,9 @@ int br_handle_frame_finish(struct sk_buff *skb)
 	struct net_bridge_fdb_entry *dst;
 	int passedup = 0;
 
+	/* insert into forwarding database after filtering to avoid spoofing */
+	br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
 	if (br->dev->flags & IFF_PROMISC) {
 		struct sk_buff *skb2;
 
@@ -108,8 +111,7 @@ int br_handle_frame(struct net_bridge_port *p, struct sk_buff **pskb)
 	if (!is_valid_ether_addr(eth_hdr(skb)->h_source))
 		goto err;
 
-	if (p->state == BR_STATE_LEARNING ||
-	    p->state == BR_STATE_FORWARDING)
+	if (p->state == BR_STATE_LEARNING)
 		br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
 
 	if (p->br->stp_enabled &&
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index f8fb49e3476..917311c6828 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -65,6 +65,15 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 		}
 		break;
 
+	case NETDEV_FEAT_CHANGE:
+		if (br->dev->flags & IFF_UP) 
+			br_features_recompute(br);
+
+		/* could do recursive feature change notification
+		 * but who would care?? 
+		 */
+		break;
+
 	case NETDEV_DOWN:
 		if (br->dev->flags & IFF_UP)
 			br_stp_disable_port(p);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 54d63f1372a..bdf95a74d8c 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -174,6 +174,7 @@ extern int br_add_if(struct net_bridge *br,
 extern int br_del_if(struct net_bridge *br,
 	      struct net_device *dev);
 extern int br_min_mtu(const struct net_bridge *br);
+extern void br_features_recompute(struct net_bridge *br);
 
 /* br_input.c */
 extern int br_handle_frame_finish(struct sk_buff *skb);
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index b91a875aca0..d071f1c9ad0 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -140,6 +140,9 @@ int br_stp_handle_bpdu(struct sk_buff *skb)
 	struct net_bridge *br = p->br;
 	unsigned char *buf;
 
+	/* insert into forwarding database after filtering to avoid spoofing */
+	br_fdb_update(p->br, p, eth_hdr(skb)->h_source);
+
 	/* need at least the 802 and STP headers */
 	if (!pskb_may_pull(skb, sizeof(header)+1) ||
 	    memcmp(skb->data, header, sizeof(header)))
diff --git a/net/core/dev.c b/net/core/dev.c
index d4d9e2680ad..f15a3ffff63 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -761,6 +761,18 @@ int dev_change_name(struct net_device *dev, char *newname)
 }
 
 /**
+ *	netdev_features_change - device changes fatures
+ *	@dev: device to cause notification
+ *
+ *	Called to indicate a device has changed features.
+ */
+void netdev_features_change(struct net_device *dev)
+{
+	notifier_call_chain(&netdev_chain, NETDEV_FEAT_CHANGE, dev);
+}
+EXPORT_SYMBOL(netdev_features_change);
+
+/**
  *	netdev_state_change - device changes state
  *	@dev: device to cause notification
  *
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index f05fde97c43..8ec484894d6 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -29,7 +29,7 @@ u32 ethtool_op_get_link(struct net_device *dev)
 
 u32 ethtool_op_get_tx_csum(struct net_device *dev)
 {
-	return (dev->features & NETIF_F_IP_CSUM) != 0;
+	return (dev->features & (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM)) != 0;
 }
 
 int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
@@ -42,6 +42,15 @@ int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
 	return 0;
 }
 
+int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
+{
+	if (data)
+		dev->features |= NETIF_F_HW_CSUM;
+	else
+		dev->features &= ~NETIF_F_HW_CSUM;
+
+	return 0;
+}
 u32 ethtool_op_get_sg(struct net_device *dev)
 {
 	return (dev->features & NETIF_F_SG) != 0;
@@ -682,6 +691,7 @@ int dev_ethtool(struct ifreq *ifr)
 	void __user *useraddr = ifr->ifr_data;
 	u32 ethcmd;
 	int rc;
+	unsigned long old_features;
 
 	/*
 	 * XXX: This can be pushed down into the ethtool_* handlers that
@@ -703,6 +713,8 @@ int dev_ethtool(struct ifreq *ifr)
 		if ((rc = dev->ethtool_ops->begin(dev)) < 0)
 			return rc;
 
+	old_features = dev->features;
+
 	switch (ethcmd) {
 	case ETHTOOL_GSET:
 		rc = ethtool_get_settings(dev, useraddr);
@@ -712,7 +724,6 @@ int dev_ethtool(struct ifreq *ifr)
 		break;
 	case ETHTOOL_GDRVINFO:
 		rc = ethtool_get_drvinfo(dev, useraddr);
-
 		break;
 	case ETHTOOL_GREGS:
 		rc = ethtool_get_regs(dev, useraddr);
@@ -801,6 +812,10 @@ int dev_ethtool(struct ifreq *ifr)
 	
 	if(dev->ethtool_ops->complete)
 		dev->ethtool_ops->complete(dev);
+
+	if (old_features != dev->features)
+		netdev_features_change(dev);
+
 	return rc;
 
  ioctl:
@@ -817,3 +832,4 @@ EXPORT_SYMBOL(ethtool_op_get_tx_csum);
 EXPORT_SYMBOL(ethtool_op_set_sg);
 EXPORT_SYMBOL(ethtool_op_set_tso);
 EXPORT_SYMBOL(ethtool_op_set_tx_csum);
+EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 060f703659e..910eb4c05a4 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -21,6 +21,7 @@
 #define to_net_dev(class) container_of(class, struct net_device, class_dev)
 
 static const char fmt_hex[] = "%#x\n";
+static const char fmt_long_hex[] = "%#lx\n";
 static const char fmt_dec[] = "%d\n";
 static const char fmt_ulong[] = "%lu\n";
 
@@ -91,7 +92,7 @@ static CLASS_DEVICE_ATTR(field, S_IRUGO, show_##field, NULL)		\
 NETDEVICE_ATTR(addr_len, fmt_dec);
 NETDEVICE_ATTR(iflink, fmt_dec);
 NETDEVICE_ATTR(ifindex, fmt_dec);
-NETDEVICE_ATTR(features, fmt_hex);
+NETDEVICE_ATTR(features, fmt_long_hex);
 NETDEVICE_ATTR(type, fmt_dec);
 
 /* use same locking rules as GIFHWADDR ioctl's */
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3cc96730c4e..478a30179a5 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -233,11 +233,14 @@ int inet_addr_onlink(struct in_device *in_dev, u32 a, u32 b)
 static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 			 int destroy)
 {
+	struct in_ifaddr *promote = NULL;
 	struct in_ifaddr *ifa1 = *ifap;
 
 	ASSERT_RTNL();
 
-	/* 1. Deleting primary ifaddr forces deletion all secondaries */
+	/* 1. Deleting primary ifaddr forces deletion all secondaries 
+	 * unless alias promotion is set
+	 **/
 
 	if (!(ifa1->ifa_flags & IFA_F_SECONDARY)) {
 		struct in_ifaddr *ifa;
@@ -251,11 +254,16 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 				continue;
 			}
 
-			*ifap1 = ifa->ifa_next;
+			if (!IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+				*ifap1 = ifa->ifa_next;
 
-			rtmsg_ifa(RTM_DELADDR, ifa);
-			notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
-			inet_free_ifa(ifa);
+				rtmsg_ifa(RTM_DELADDR, ifa);
+				notifier_call_chain(&inetaddr_chain, NETDEV_DOWN, ifa);
+				inet_free_ifa(ifa);
+			} else {
+				promote = ifa;
+				break;
+			}
 		}
 	}
 
@@ -281,6 +289,13 @@ static void inet_del_ifa(struct in_device *in_dev, struct in_ifaddr **ifap,
 		if (!in_dev->ifa_list)
 			inetdev_destroy(in_dev);
 	}
+
+	if (promote && IN_DEV_PROMOTE_SECONDARIES(in_dev)) {
+		/* not sure if we should send a delete notify first? */
+		promote->ifa_flags &= ~IFA_F_SECONDARY;
+		rtmsg_ifa(RTM_NEWADDR, promote);
+		notifier_call_chain(&inetaddr_chain, NETDEV_UP, promote);
+	}
 }
 
 static int inet_insert_ifa(struct in_ifaddr *ifa)
@@ -1384,6 +1399,15 @@ static struct devinet_sysctl_table {
 			.proc_handler	= &ipv4_doint_and_flush,
 			.strategy	= &ipv4_doint_and_flush_strategy,
 		},
+		{
+			.ctl_name	= NET_IPV4_CONF_PROMOTE_SECONDARIES,
+			.procname	= "promote_secondaries",
+			.data		= &ipv4_devconf.promote_secondaries,
+			.maxlen		= sizeof(int),
+			.mode		= 0644,
+			.proc_handler	= &ipv4_doint_and_flush,
+			.strategy	= &ipv4_doint_and_flush_strategy,
+		},
 	},
 	.devinet_dev = {
 		{
diff --git a/net/ipv4/multipath_drr.c b/net/ipv4/multipath_drr.c
index 9349686131f..cf2e6bcf797 100644
--- a/net/ipv4/multipath_drr.c
+++ b/net/ipv4/multipath_drr.c
@@ -57,7 +57,6 @@ struct multipath_device {
 
 static struct multipath_device state[MULTIPATH_MAX_DEVICECANDIDATES];
 static DEFINE_SPINLOCK(state_lock);
-static struct rtable *last_selection = NULL;
 
 static int inline __multipath_findslot(void)
 {
@@ -111,11 +110,6 @@ struct notifier_block drr_dev_notifier = {
 	.notifier_call	= drr_dev_event,
 };
 
-static void drr_remove(struct rtable *rt)
-{
-	if (last_selection == rt)
-		last_selection = NULL;
-}
 
 static void drr_safe_inc(atomic_t *usecount)
 {
@@ -144,14 +138,6 @@ static void drr_select_route(const struct flowi *flp,
 	int devidx = -1;
 	int cur_min_devidx = -1;
 
-       	/* if necessary and possible utilize the old alternative */
-	if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-	    last_selection != NULL) {
-		result = last_selection;
-		*rp = result;
-		return;
-	}
-
 	/* 1. make sure all alt. nexthops have the same GC related data */
 	/* 2. determine the new candidate to be returned */
 	result = NULL;
@@ -229,12 +215,10 @@ static void drr_select_route(const struct flowi *flp,
 	}
 
 	*rp = result;
-	last_selection = result;
 }
 
 static struct ip_mp_alg_ops drr_ops = {
 	.mp_alg_select_route	=	drr_select_route,
-	.mp_alg_remove		=	drr_remove,
 };
 
 static int __init drr_init(void)
@@ -244,7 +228,7 @@ static int __init drr_init(void)
 	if (err)
 		return err;
 
-	err = multipath_alg_register(&drr_ops, IP_MP_ALG_RR);
+	err = multipath_alg_register(&drr_ops, IP_MP_ALG_DRR);
 	if (err)
 		goto fail;
 
diff --git a/net/ipv4/multipath_rr.c b/net/ipv4/multipath_rr.c
index 554a8256816..061b6b25398 100644
--- a/net/ipv4/multipath_rr.c
+++ b/net/ipv4/multipath_rr.c
@@ -47,29 +47,12 @@
 #include <net/checksum.h>
 #include <net/ip_mp_alg.h>
 
-#define MULTIPATH_MAX_CANDIDATES 40
-
-static struct rtable* last_used = NULL;
-
-static void rr_remove(struct rtable *rt)
-{
-	if (last_used == rt)
-		last_used = NULL;
-}
-
 static void rr_select_route(const struct flowi *flp,
 			    struct rtable *first, struct rtable **rp)
 {
 	struct rtable *nh, *result, *min_use_cand = NULL;
 	int min_use = -1;
 
-	/* if necessary and possible utilize the old alternative */
-	if ((flp->flags & FLOWI_FLAG_MULTIPATHOLDROUTE) != 0 &&
-	    last_used != NULL) {
-		result = last_used;
-		goto out;
-	}
-
 	/* 1. make sure all alt. nexthops have the same GC related data
 	 * 2. determine the new candidate to be returned
 	 */
@@ -90,15 +73,12 @@ static void rr_select_route(const struct flowi *flp,
 	if (!result)
 		result = first;
 
-out:
-	last_used = result;
 	result->u.dst.__use++;
 	*rp = result;
 }
 
 static struct ip_mp_alg_ops rr_ops = {
 	.mp_alg_select_route	=	rr_select_route,
-	.mp_alg_remove		=	rr_remove,
 };
 
 static int __init rr_init(void)
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index a93f6dc5197..0e5f7499deb 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -535,10 +535,12 @@ release:
 		if (err)
 			goto done;
 
-		/* Do not check for fault */
-		if (!freq.flr_label)
-			copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
-				     &fl->label, sizeof(fl->label));
+		if (!freq.flr_label) {
+			if (copy_to_user(&((struct in6_flowlabel_req __user *) optval)->flr_label,
+					 &fl->label, sizeof(fl->label))) {
+				/* Intentionally ignore fault. */
+			}
+		}
 
 		sfl1->fl = fl;
 		sfl1->next = np->ipv6_fl_list;
diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index 32d94754acf..080ef392846 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -876,7 +876,7 @@ static void __init detect_byte_swap(pmac_t *chip)
  */
 static int __init snd_pmac_detect(pmac_t *chip)
 {
-	struct device_node *sound;
+	struct device_node *sound = NULL;
 	unsigned int *prop, l;
 	struct macio_chip* macio;
 
@@ -906,20 +906,22 @@ static int __init snd_pmac_detect(pmac_t *chip)
 		chip->is_pbook_G3 = 1;
 	chip->node = find_devices("awacs");
 	if (chip->node)
-		return 0; /* ok */
+		sound = chip->node;
 
 	/*
 	 * powermac G3 models have a node called "davbus"
 	 * with a child called "sound".
 	 */
-	chip->node = find_devices("davbus");
+	if (!chip->node)
+		chip->node = find_devices("davbus");
 	/*
 	 * if we didn't find a davbus device, try 'i2s-a' since
 	 * this seems to be what iBooks have
 	 */
 	if (! chip->node) {
 		chip->node = find_devices("i2s-a");
-		if (chip->node && chip->node->parent && chip->node->parent->parent) {
+		if (chip->node && chip->node->parent &&
+		    chip->node->parent->parent) {
 			if (device_is_compatible(chip->node->parent->parent,
 						 "K2-Keylargo"))
 				chip->is_k2 = 1;
@@ -928,9 +930,11 @@ static int __init snd_pmac_detect(pmac_t *chip)
 	if (! chip->node)
 		return -ENODEV;
 
-	sound = find_devices("sound");
-	while (sound && sound->parent != chip->node)
-		sound = sound->next;
+	if (!sound) {
+		sound = find_devices("sound");
+		while (sound && sound->parent != chip->node)
+			sound = sound->next;
+	}
 	if (! sound)
 		return -ENODEV;
 	prop = (unsigned int *) get_property(sound, "sub-frame", NULL);
@@ -1019,7 +1023,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
 		}
 	}
 	if (chip->pdev == NULL)
-		printk(KERN_WARNING "snd-powermac: can't locate macio PCI device !\n");
+		printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
+		       " device !\n");
 
 	detect_byte_swap(chip);
 
@@ -1027,7 +1032,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
 	   are available */
 	prop = (unsigned int *) get_property(sound, "sample-rates", &l);
 	if (! prop)
-		prop = (unsigned int *) get_property(sound, "output-frame-rates", &l);
+		prop = (unsigned int *) get_property(sound,
+						     "output-frame-rates", &l);
 	if (prop) {
 		int i;
 		chip->freqs_ok = 0;
@@ -1054,7 +1060,8 @@ static int __init snd_pmac_detect(pmac_t *chip)
 /*
  * exported - boolean info callbacks for ease of programming
  */
-int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol,
+				 snd_ctl_elem_info_t *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 2;
@@ -1063,7 +1070,8 @@ int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *
 	return 0;
 }
 
-int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol,
+			       snd_ctl_elem_info_t *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 	uinfo->count = 1;