From 82155df0d56697b72739242308b9a028d918847c Mon Sep 17 00:00:00 2001
From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Date: Mon, 23 May 2005 19:50:32 +0900
Subject: [PATCH] --- yaml --- r: 1756 b: refs/heads/master c:
 7a8cb869f31de525bc34095f51f8c8a43ffcb6a9 h: refs/heads/master v: v3

---
 [refs]                                        |   2 +-
 .../Documentation/cpu-freq/cpufreq-stats.txt  | 128 ----
 trunk/arch/h8300/kernel/process.c             |   2 +-
 trunk/arch/i386/kernel/cpu/cpufreq/Kconfig    |  14 +-
 trunk/arch/i386/kernel/cpu/cpufreq/Makefile   |   1 -
 trunk/arch/i386/kernel/cpu/cpufreq/longhaul.c |  58 +-
 .../i386/kernel/cpu/cpufreq/powernow-k7.c     |  11 +-
 .../i386/kernel/cpu/cpufreq/powernow-k8.c     | 113 ++--
 .../i386/kernel/cpu/cpufreq/powernow-k8.h     |  15 -
 .../arch/i386/kernel/cpu/cpufreq/sc520_freq.c | 186 ------
 .../kernel/cpu/cpufreq/speedstep-centrino.c   |   6 -
 .../i386/kernel/cpu/cpufreq/speedstep-lib.c   |   6 +-
 .../i386/kernel/cpu/cpufreq/speedstep-smi.c   |   3 -
 trunk/arch/i386/kernel/setup.c                |   2 -
 trunk/arch/i386/kernel/timers/common.c        |   6 +-
 trunk/arch/i386/kernel/timers/timer_tsc.c     |  20 -
 trunk/arch/ppc/syslib/prom_init.c             |  10 -
 trunk/arch/ppc64/kernel/pSeries_reconfig.c    |   8 +
 trunk/arch/ppc64/kernel/prom_init.c           |  10 +-
 trunk/arch/ppc64/kernel/time.c                |   2 +
 trunk/arch/x86_64/Kconfig                     |   1 -
 trunk/arch/x86_64/kernel/io_apic.c            |   1 -
 trunk/arch/x86_64/kernel/mpparse.c            |   1 -
 trunk/arch/x86_64/kernel/time.c               |   2 -
 trunk/drivers/cpufreq/Kconfig                 |  24 -
 trunk/drivers/cpufreq/Makefile                |   1 -
 trunk/drivers/cpufreq/cpufreq.c               |   8 +-
 trunk/drivers/cpufreq/cpufreq_conservative.c  | 586 ------------------
 trunk/drivers/cpufreq/cpufreq_ondemand.c      | 180 +++---
 trunk/drivers/cpufreq/cpufreq_stats.c         |  47 +-
 trunk/drivers/firmware/pcdp.c                 |   1 -
 trunk/drivers/pci/hotplug/shpchprm_acpi.c     |   2 +-
 trunk/fs/proc/proc_devtree.c                  | 105 ++--
 trunk/fs/udf/udftime.c                        |   2 +-
 trunk/include/asm-i386/timer.h                |   1 -
 trunk/include/asm-ppc64/prom.h                |  13 +-
 trunk/include/linux/cpufreq.h                 |   2 +-
 trunk/kernel/module.c                         |   6 -
 38 files changed, 256 insertions(+), 1330 deletions(-)
 delete mode 100644 trunk/Documentation/cpu-freq/cpufreq-stats.txt
 delete mode 100644 trunk/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
 delete mode 100644 trunk/drivers/cpufreq/cpufreq_conservative.c

diff --git a/[refs] b/[refs]
index 0e462ff1cc70..a112a2555584 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5f64f73957f6cae3222f97f2599199ee562f7f3f
+refs/heads/master: 7a8cb869f31de525bc34095f51f8c8a43ffcb6a9
diff --git a/trunk/Documentation/cpu-freq/cpufreq-stats.txt b/trunk/Documentation/cpu-freq/cpufreq-stats.txt
deleted file mode 100644
index e2d1e760b4ba..000000000000
--- a/trunk/Documentation/cpu-freq/cpufreq-stats.txt
+++ /dev/null
@@ -1,128 +0,0 @@
-
-     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/trunk/arch/h8300/kernel/process.c b/trunk/arch/h8300/kernel/process.c
index b5f83e9f04db..134aec1c6d19 100644
--- a/trunk/arch/h8300/kernel/process.c
+++ b/trunk/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/trunk/arch/i386/kernel/cpu/cpufreq/Kconfig b/trunk/arch/i386/kernel/cpu/cpufreq/Kconfig
index 0f1eb507233b..f25ffd74235c 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/trunk/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 SC400 and SC410"
+	tristate "AMD Elan"
 	select CPU_FREQ_TABLE
 	depends on X86_ELAN
 	---help---
@@ -38,18 +38,6 @@ 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/trunk/arch/i386/kernel/cpu/cpufreq/Makefile b/trunk/arch/i386/kernel/cpu/cpufreq/Makefile
index 2e894f1c8910..a922e97aeedd 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/Makefile
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/Makefile
@@ -3,7 +3,6 @@ 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/trunk/arch/i386/kernel/cpu/cpufreq/longhaul.c b/trunk/arch/i386/kernel/cpu/cpufreq/longhaul.c
index 04e3563da4fe..ab0f9f5aac11 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -29,7 +29,6 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/pci.h>
 
 #include <asm/msr.h>
 #include <asm/timex.h>
@@ -120,13 +119,7 @@ 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:
@@ -144,58 +137,17 @@ static void do_powersaver(union msr_longhaul *longhaul,
 	longhaul->bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4;
 	longhaul->bits.EnableSoftBusRatio = 1;
 	longhaul->bits.RevisionKey = 0;
-
-	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();
+	local_irq_disable();
 	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
+	local_irq_enable();
 	__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();
 }
 
 /**
@@ -626,7 +578,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 		longhaul_setup_voltagescaling();
 
 	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-	policy->cpuinfo.transition_latency = 200000;	/* nsec */
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 	policy->cur = calc_speed(longhaul_get_cpu_mult());
 
 	ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table);
diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index 5c530064eb74..913f652623d9 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -23,7 +23,6 @@
 #include <linux/dmi.h>
 
 #include <asm/msr.h>
-#include <asm/timer.h>
 #include <asm/timex.h>
 #include <asm/io.h>
 #include <asm/system.h>
@@ -587,17 +586,13 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy)
 
 	rdmsrl (MSR_K7_FID_VID_STATUS, fidvidstatus.val);
 
-	/* recalibrate cpu_khz */
-	result = recalibrate_cpu_khz();
-	if (result)
-		return result;
-
-	fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.CFID];
+	/* A K7 with powernow technology is set to max frequency by BIOS */
+	fsb = (10 * cpu_khz) / fid_codes[fidvidstatus.bits.MFID];
 	if (!fsb) {
 		printk(KERN_WARNING PFX "can not determine bus frequency\n");
 		return -EINVAL;
 	}
-	dprintk("FSB: %3dMHz\n", fsb/1000);
+	dprintk("FSB: %3d.%03d MHz\n", fsb/1000, 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/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 10cc096c0ade..a65ff7e32e5d 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/trunk/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 : mark.langsdorf@amd.com
+ *  Support : paul.devriendt@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
@@ -15,13 +15,12 @@
  *
  *  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>
@@ -31,7 +30,6 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/cpumask.h>
 
 #include <asm/msr.h>
 #include <asm/io.h>
@@ -44,7 +42,7 @@
 
 #define PFX "powernow-k8: "
 #define BFX PFX "BIOS error: "
-#define VERSION "version 1.40.2"
+#define VERSION "version 1.00.09e"
 #include "powernow-k8.h"
 
 /* serialize freq changes  */
@@ -52,10 +50,6 @@ 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)
 {
@@ -280,18 +274,11 @@ 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);
@@ -299,8 +286,8 @@ 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 == maxvid) {
+	while ((rvosteps > 0)  && ((data->rvo + data->currvid) > reqvid)) {
+		if (data->currvid == 0) {
 			rvosteps = 0;
 		} else {
 			dprintk("ph1: changing vid for rvo, req 0x%x\n",
@@ -684,7 +671,7 @@ 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_INFO PFX "BIOS error - no PSB or ACPI _PSS objects\n");
+	printk(KERN_ERR PFX "BIOS error - no PSB\n");
 	return -ENODEV;
 }
 
@@ -708,7 +695,7 @@ 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: bad ACPI data\n");
+		dprintk("register performance failed\n");
 		return -EIO;
 	}
 
@@ -759,23 +746,22 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 			continue;
 		}
 
-		/* 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 (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)) {
@@ -830,7 +816,7 @@ static int transition_frequency(struct powernow_k8_data *data, unsigned int inde
 {
 	u32 fid;
 	u32 vid;
-	int res, i;
+	int res;
 	struct cpufreq_freqs freqs;
 
 	dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
@@ -855,8 +841,7 @@ 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(KERN_ERR PFX
-		       "ignoring illegal change in lo freq table-%x to 0x%x\n",
+		printk("ignoring illegal change in lo freq table-%x to 0x%x\n",
 		       data->currfid, fid);
 		return 1;
 	}
@@ -865,20 +850,18 @@ 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);
-	for_each_cpu_mask(i, cpu_core_map[data->cpu]) {
-		freqs.cpu = i;
-		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-	}
+	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);
-	for_each_cpu_mask(i, cpu_core_map[data->cpu]) {
-		freqs.cpu = i;
-		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-        }
+	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
 	return res;
 }
 
@@ -891,7 +874,6 @@ 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;
@@ -920,41 +902,22 @@ static int powernowk8_target(struct cpufreq_policy *pol, unsigned targfreq, unsi
 		data->currfid, data->currvid);
 
 	if ((checkvid != data->currvid) || (checkfid != data->currfid)) {
-		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);
+		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);
 	}
 
 	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;
 
@@ -999,7 +962,7 @@ static int __init powernowk8_cpu_init(struct cpufreq_policy *pol)
 		 */
 
 		if ((num_online_cpus() != 1) || (num_possible_cpus() != 1)) {
-			printk(KERN_ERR PFX "MP systems not supported by PSB BIOS structure\n");
+			printk(KERN_INFO PFX "MP systems not supported by PSB BIOS structure\n");
 			kfree(data);
 			return -ENODEV;
 		}
@@ -1040,7 +1003,6 @@ 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 */
@@ -1107,7 +1069,7 @@ static unsigned int powernowk8_get (unsigned int cpu)
 		return 0;
 	}
 	preempt_disable();
-	
+
 	if (query_current_values_with_pending_wait(data))
 		goto out;
 
@@ -1165,10 +1127,9 @@ static void __exit powernowk8_exit(void)
 	cpufreq_unregister_driver(&cpufreq_amd64_driver);
 }
 
-MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and Mark Langsdorf <mark.langsdorf@amd.com.");
+MODULE_AUTHOR("Paul Devriendt <paul.devriendt@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/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
index 9ed5bf221cb7..63ebc8470f52 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/powernow-k8.h
@@ -174,18 +174,3 @@ 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/trunk/arch/i386/kernel/cpu/cpufreq/sc520_freq.c b/trunk/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
deleted file mode 100644
index ef457d50f4ac..000000000000
--- a/trunk/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- *	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/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index 7dcbf70fc16f..07d5612dc00f 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -54,8 +54,6 @@ enum {
 	CPU_DOTHAN_A1,
 	CPU_DOTHAN_A2,
 	CPU_DOTHAN_B0,
-	CPU_MP4HT_D0,
-	CPU_MP4HT_E0,
 };
 
 static const struct cpu_id cpu_ids[] = {
@@ -63,8 +61,6 @@ 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]))
 
@@ -230,8 +226,6 @@ 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/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
index d368b3f5fce8..8ba430a9c3a2 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c
+++ b/trunk/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 speed is %u\n", prev_speed);
+	dprintk("previous seped 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 speed is %u\n", *low_speed);
+	dprintk("low seped 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 speed is %u\n", *high_speed);
+	dprintk("high seped is %u\n", *high_speed);
 
 	if (*low_speed == *high_speed) {
 		ret = -ENODEV;
diff --git a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
index b25fb6b635ae..79440b3f087e 100644
--- a/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/trunk/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
@@ -357,9 +357,6 @@ 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/trunk/arch/i386/kernel/setup.c b/trunk/arch/i386/kernel/setup.c
index 2bfbddebdbf8..945ec73163c8 100644
--- a/trunk/arch/i386/kernel/setup.c
+++ b/trunk/arch/i386/kernel/setup.c
@@ -1502,13 +1502,11 @@ 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/trunk/arch/i386/kernel/timers/common.c b/trunk/arch/i386/kernel/timers/common.c
index 8e201219f525..f7f90005e22e 100644
--- a/trunk/arch/i386/kernel/timers/common.c
+++ b/trunk/arch/i386/kernel/timers/common.c
@@ -6,7 +6,6 @@
 #include <linux/timex.h>
 #include <linux/errno.h>
 #include <linux/jiffies.h>
-#include <linux/module.h>
 
 #include <asm/io.h>
 #include <asm/timer.h>
@@ -25,7 +24,7 @@
 
 #define CALIBRATE_TIME	(5 * 1000020/HZ)
 
-unsigned long calibrate_tsc(void)
+unsigned long __init calibrate_tsc(void)
 {
 	mach_prepare_counter();
 
@@ -140,7 +139,7 @@ unsigned long __init calibrate_tsc_hpet(unsigned long *tsc_hpet_quotient_ptr)
 #endif
 
 /* calculate cpu_khz */
-void init_cpu_khz(void)
+void __init init_cpu_khz(void)
 {
 	if (cpu_has_tsc) {
 		unsigned long tsc_quotient = calibrate_tsc();
@@ -159,4 +158,3 @@ void init_cpu_khz(void)
 		}
 	}
 }
-
diff --git a/trunk/arch/i386/kernel/timers/timer_tsc.c b/trunk/arch/i386/kernel/timers/timer_tsc.c
index 180444d87824..7926d967be00 100644
--- a/trunk/arch/i386/kernel/timers/timer_tsc.c
+++ b/trunk/arch/i386/kernel/timers/timer_tsc.c
@@ -320,26 +320,6 @@ 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/trunk/arch/ppc/syslib/prom_init.c b/trunk/arch/ppc/syslib/prom_init.c
index 7f15136830f4..2cee87137f2e 100644
--- a/trunk/arch/ppc/syslib/prom_init.c
+++ b/trunk/arch/ppc/syslib/prom_init.c
@@ -626,18 +626,8 @@ inspect_node(phandle node, struct device_node *dad,
 	l = call_prom("package-to-path", 3, 1, node,
 		      mem_start, mem_end - mem_start);
 	if (l >= 0) {
-		char *p, *ep;
-
 		np->full_name = PTRUNRELOC((char *) mem_start);
 		*(char *)(mem_start + l) = 0;
-		/* Fixup an Apple bug where they have bogus \0 chars in the
-		 * middle of the path in some properties
-		 */
-		for (p = (char *)mem_start, ep = p + l; p < ep; p++)
-			if ((*p) == '\0') {
-				memmove(p, p+1, ep - p);
-				ep--;
-			}
 		mem_start = ALIGNUL(mem_start + l + 1);
 	}
 
diff --git a/trunk/arch/ppc64/kernel/pSeries_reconfig.c b/trunk/arch/ppc64/kernel/pSeries_reconfig.c
index dc2a69d412a2..cb5443f2e49b 100644
--- a/trunk/arch/ppc64/kernel/pSeries_reconfig.c
+++ b/trunk/arch/ppc64/kernel/pSeries_reconfig.c
@@ -47,6 +47,14 @@ static void remove_node_proc_entries(struct device_node *np)
 		remove_proc_entry(pp->name, np->pde);
 		pp = pp->next;
 	}
+
+	/* Assuming that symlinks have the same parent directory as
+	 * np->pde.
+	 */
+	if (np->name_link)
+		remove_proc_entry(np->name_link->name, parent->pde);
+	if (np->addr_link)
+		remove_proc_entry(np->addr_link->name, parent->pde);
 	if (np->pde)
 		remove_proc_entry(np->pde->name, parent->pde);
 }
diff --git a/trunk/arch/ppc64/kernel/prom_init.c b/trunk/arch/ppc64/kernel/prom_init.c
index 3de950de3671..bc53967a8643 100644
--- a/trunk/arch/ppc64/kernel/prom_init.c
+++ b/trunk/arch/ppc64/kernel/prom_init.c
@@ -1566,7 +1566,7 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
 {
 	int l, align;
 	phandle child;
-	char *namep, *prev_name, *sstart, *p, *ep;
+	char *namep, *prev_name, *sstart;
 	unsigned long soff;
 	unsigned char *valp;
 	unsigned long offset = reloc_offset();
@@ -1588,14 +1588,6 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
 			call_prom("package-to-path", 3, 1, node, namep, l);
 		}
 		namep[l] = '\0';
-		/* Fixup an Apple bug where they have bogus \0 chars in the
-		 * middle of the path in some properties
-		 */
-		for (p = namep, ep = namep + l; p < ep; p++)
-			if (*p == '\0') {
-				memmove(p, p+1, ep - p);
-				ep--; l--;
-			}
 		*mem_start = _ALIGN(((unsigned long) namep) + strlen(namep) + 1, 4);
 	}
 
diff --git a/trunk/arch/ppc64/kernel/time.c b/trunk/arch/ppc64/kernel/time.c
index 33364a7d2cd2..3d54745108c7 100644
--- a/trunk/arch/ppc64/kernel/time.c
+++ b/trunk/arch/ppc64/kernel/time.c
@@ -325,7 +325,9 @@ 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/trunk/arch/x86_64/Kconfig b/trunk/arch/x86_64/Kconfig
index 289f448ac89c..0f430d9d3632 100644
--- a/trunk/arch/x86_64/Kconfig
+++ b/trunk/arch/x86_64/Kconfig
@@ -305,7 +305,6 @@ 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/trunk/arch/x86_64/kernel/io_apic.c b/trunk/arch/x86_64/kernel/io_apic.c
index afd87e64d0a8..80e9b498c443 100644
--- a/trunk/arch/x86_64/kernel/io_apic.c
+++ b/trunk/arch/x86_64/kernel/io_apic.c
@@ -37,7 +37,6 @@
 #include <asm/desc.h>
 #include <asm/proto.h>
 #include <asm/mach_apic.h>
-#include <asm/acpi.h>
 
 #define __apicdebuginit  __init
 
diff --git a/trunk/arch/x86_64/kernel/mpparse.c b/trunk/arch/x86_64/kernel/mpparse.c
index 61a63be6b294..f86d9db94bfc 100644
--- a/trunk/arch/x86_64/kernel/mpparse.c
+++ b/trunk/arch/x86_64/kernel/mpparse.c
@@ -30,7 +30,6 @@
 #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/trunk/arch/x86_64/kernel/time.c b/trunk/arch/x86_64/kernel/time.c
index fb8c809b4cd9..735b6767c8ed 100644
--- a/trunk/arch/x86_64/kernel/time.c
+++ b/trunk/arch/x86_64/kernel/time.c
@@ -27,9 +27,7 @@
 #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/trunk/drivers/cpufreq/Kconfig b/trunk/drivers/cpufreq/Kconfig
index 60c9be99c6d9..95882bb1950e 100644
--- a/trunk/drivers/cpufreq/Kconfig
+++ b/trunk/drivers/cpufreq/Kconfig
@@ -46,10 +46,6 @@ 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
@@ -119,24 +115,4 @@ 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/trunk/drivers/cpufreq/Makefile b/trunk/drivers/cpufreq/Makefile
index 71fc3b4173f1..67b16e5a41a7 100644
--- a/trunk/drivers/cpufreq/Makefile
+++ b/trunk/drivers/cpufreq/Makefile
@@ -8,7 +8,6 @@ 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/trunk/drivers/cpufreq/cpufreq.c b/trunk/drivers/cpufreq/cpufreq.c
index 03b5fb2ddcf4..8e561313d094 100644
--- a/trunk/drivers/cpufreq/cpufreq.c
+++ b/trunk/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)))
 			{
-				dprintk(KERN_WARNING "Warning: CPU frequency is %u, "
+				printk(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;
 
-	dprintk(KERN_WARNING "Warning: CPU frequency out of sync: cpufreq and timing "
+	printk(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))
-			dprintk(KERN_DEBUG "Warning: CPU frequency is %u, "
+			printk(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))
-				dprintk(KERN_WARNING "Warning: CPU frequency"
+				printk(KERN_WARNING "Warning: CPU frequency"
 				       "is %u, cpufreq assumed %u kHz.\n",
 				       cur_freq, cpu_policy->cur);
 
diff --git a/trunk/drivers/cpufreq/cpufreq_conservative.c b/trunk/drivers/cpufreq/cpufreq_conservative.c
deleted file mode 100644
index e1df376e709e..000000000000
--- a/trunk/drivers/cpufreq/cpufreq_conservative.c
+++ /dev/null
@@ -1,586 +0,0 @@
-/*
- *  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/trunk/drivers/cpufreq/cpufreq_ondemand.c b/trunk/drivers/cpufreq/cpufreq_ondemand.c
index c1fc9c62bb51..8d83a21c6477 100644
--- a/trunk/drivers/cpufreq/cpufreq_ondemand.c
+++ b/trunk/drivers/cpufreq/cpufreq_ondemand.c
@@ -34,9 +34,13 @@
  */
 
 #define DEF_FREQUENCY_UP_THRESHOLD		(80)
-#define MIN_FREQUENCY_UP_THRESHOLD		(11)
+#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
@@ -51,9 +55,9 @@ 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		(1)
-#define MAX_SAMPLING_DOWN_FACTOR		(10)
+#define DEF_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);
 
@@ -74,23 +78,15 @@ struct dbs_tuners {
 	unsigned int 		sampling_rate;
 	unsigned int		sampling_down_factor;
 	unsigned int		up_threshold;
-	unsigned int		ignore_nice;
+	unsigned int		down_threshold;
 };
 
 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)
 {
@@ -119,7 +115,7 @@ 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(ignore_nice, ignore_nice);
+show_one(down_threshold, down_threshold);
 
 static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused, 
 		const char *buf, size_t count)
@@ -130,9 +126,6 @@ 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);
@@ -168,7 +161,8 @@ 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 < MIN_FREQUENCY_UP_THRESHOLD ||
+			input <= dbs_tuners_ins.down_threshold) {
 		up(&dbs_sem);
 		return -EINVAL;
 	}
@@ -179,35 +173,22 @@ static ssize_t store_up_threshold(struct cpufreq_policy *unused,
 	return count;
 }
 
-static ssize_t store_ignore_nice(struct cpufreq_policy *policy,
+static ssize_t store_down_threshold(struct cpufreq_policy *unused, 
 		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 */
+	if (ret != 1 || input > MAX_FREQUENCY_DOWN_THRESHOLD || 
+			input < MIN_FREQUENCY_DOWN_THRESHOLD ||
+			input >= dbs_tuners_ins.up_threshold) {
 		up(&dbs_sem);
-		return count;
+		return -EINVAL;
 	}
-	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;
-	}
+	dbs_tuners_ins.down_threshold = input;
 	up(&dbs_sem);
 
 	return count;
@@ -220,7 +201,7 @@ __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(ignore_nice);
+define_one_rw(down_threshold);
 
 static struct attribute * dbs_attributes[] = {
 	&sampling_rate_max.attr,
@@ -228,7 +209,7 @@ static struct attribute * dbs_attributes[] = {
 	&sampling_rate.attr,
 	&sampling_down_factor.attr,
 	&up_threshold.attr,
-	&ignore_nice.attr,
+	&down_threshold.attr,
 	NULL
 };
 
@@ -241,8 +222,9 @@ static struct attribute_group dbs_attr_group = {
 
 static void dbs_check_cpu(int cpu)
 {
-	unsigned int idle_ticks, up_idle_ticks, total_ticks;
-	unsigned int freq_next;
+	unsigned int idle_ticks, up_idle_ticks, down_idle_ticks;
+	unsigned int total_idle_ticks;
+	unsigned int freq_down_step;
 	unsigned int freq_down_sampling_rate;
 	static int down_skip[NR_CPUS];
 	struct cpu_dbs_info_s *this_dbs_info;
@@ -256,25 +238,38 @@ static void dbs_check_cpu(int cpu)
 
 	policy = this_dbs_info->cur_policy;
 	/* 
-	 * 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.
+	 * 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 current frequency 
+	 * 5% of max_frequency 
 	 */
 
 	/* Check for frequency increase */
-	idle_ticks = UINT_MAX;
+	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;
+	
+
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks, total_idle_ticks;
+		unsigned int tmp_idle_ticks;
 		struct cpu_dbs_info_s *j_dbs_info;
 
+		if (j == cpu)
+			continue;
+
 		j_dbs_info = &per_cpu(cpu_dbs_info, j);
-		total_idle_ticks = get_cpu_idle_time(j);
+		/* Check for frequency increase */
+		total_idle_ticks = kstat_cpu(j).cpustat.idle +
+			kstat_cpu(j).cpustat.iowait;
 		tmp_idle_ticks = total_idle_ticks -
 			j_dbs_info->prev_cpu_idle_up;
 		j_dbs_info->prev_cpu_idle_up = total_idle_ticks;
@@ -286,23 +281,13 @@ 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) *
-			usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
+			sampling_rate_in_HZ(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;
 	}
 
@@ -311,14 +296,23 @@ static void dbs_check_cpu(int cpu)
 	if (down_skip[cpu] < dbs_tuners_ins.sampling_down_factor)
 		return;
 
-	idle_ticks = UINT_MAX;
+	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;
+
 	for_each_cpu_mask(j, policy->cpus) {
-		unsigned int tmp_idle_ticks, total_idle_ticks;
+		unsigned int tmp_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 decrease */
-		total_idle_ticks = j_dbs_info->prev_cpu_idle_up;
+		/* Check for frequency increase */
+		total_idle_ticks = kstat_cpu(j).cpustat.idle +
+			kstat_cpu(j).cpustat.iowait;
 		tmp_idle_ticks = total_idle_ticks -
 			j_dbs_info->prev_cpu_idle_down;
 		j_dbs_info->prev_cpu_idle_down = total_idle_ticks;
@@ -327,37 +321,38 @@ 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;
-	total_ticks = usecs_to_jiffies(freq_down_sampling_rate);
+	down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
+			sampling_rate_in_HZ(freq_down_sampling_rate);
 
-	/*
-	 * 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);
+	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;
 
-	if (freq_next <= ((policy->cur * 95) / 100))
-		__cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L);
+		__cpufreq_driver_target(policy,
+			policy->cur - freq_down_step, 
+			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);
+	for (i = 0; i < NR_CPUS; i++)
+		if (cpu_online(i))
+			dbs_check_cpu(i);
 	schedule_delayed_work(&dbs_work, 
-			usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
+			sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
 	up(&dbs_sem);
 } 
 
@@ -365,7 +360,7 @@ 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));
+			sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
 	return;
 }
 
@@ -402,9 +397,12 @@ 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 = get_cpu_idle_time(j);
-			j_dbs_info->prev_cpu_idle_down
-				= j_dbs_info->prev_cpu_idle_up;
+			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;
 		}
 		this_dbs_info->enable = 1;
 		sysfs_create_group(&policy->kobj, &dbs_attr_group);
@@ -424,7 +422,6 @@ 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();
 		}
@@ -464,11 +461,12 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 	return 0;
 }
 
-static struct cpufreq_governor cpufreq_gov_dbs = {
+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/trunk/drivers/cpufreq/cpufreq_stats.c b/trunk/drivers/cpufreq/cpufreq_stats.c
index 741b6b191e6a..2084593937c6 100644
--- a/trunk/drivers/cpufreq/cpufreq_stats.c
+++ b/trunk/drivers/cpufreq/cpufreq_stats.c
@@ -19,7 +19,6 @@
 #include <linux/percpu.h>
 #include <linux/kobject.h>
 #include <linux/spinlock.h>
-#include <asm/cputime.h>
 
 static spinlock_t cpufreq_stats_lock;
 
@@ -30,14 +29,20 @@ 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;
-	cputime64_t *time_in_state;
+	unsigned long long *time_in_state;
 	unsigned int *freq_table;
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
 	unsigned int *trans_table;
@@ -55,16 +60,12 @@ 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] =
-			cputime64_add(stat->time_in_state[stat->last_index],
-				      cputime_sub(cur_time, stat->last_time));
-	stat->last_time = cur_time;
+		stat->time_in_state[stat->last_index] +=
+			delta_time(stat->last_time, jiffies);
+	stat->last_time = jiffies;
 	spin_unlock(&cpufreq_stats_lock);
 	return 0;
 }
@@ -89,8 +90,8 @@ 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], 
-			(unsigned long long)cputime64_to_clock_t(stat->time_in_state[i]));
+		len += sprintf(buf + len, "%u %llu\n",
+			stat->freq_table[i], stat->time_in_state[i]);
 	}
 	return len;
 }
@@ -106,30 +107,16 @@ 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: ",
+		len += snprintf(buf + len, PAGE_SIZE - len, "%9u:\t",
 				stat->freq_table[i]);
 
 		for (j = 0; j < stat->state_num; j++)   {
 			if (len >= PAGE_SIZE)
 				break;
-			len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
+			len += snprintf(buf + len, PAGE_SIZE - len, "%u\t",
 					stat->trans_table[i*stat->max_state+j]);
 		}
 		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
@@ -210,7 +197,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
 		count++;
 	}
 
-	alloc_size = count * sizeof(int) + count * sizeof(cputime64_t);
+	alloc_size = count * sizeof(int) + count * sizeof(long long);
 
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
 	alloc_size += count * count * sizeof(int);
@@ -237,7 +224,7 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
 	}
 	stat->state_num = j;
 	spin_lock(&cpufreq_stats_lock);
-	stat->last_time = get_jiffies_64();
+	stat->last_time = jiffies;
 	stat->last_index = freq_table_get_index(stat, policy->cur);
 	spin_unlock(&cpufreq_stats_lock);
 	cpufreq_cpu_put(data);
diff --git a/trunk/drivers/firmware/pcdp.c b/trunk/drivers/firmware/pcdp.c
index df1b721154d2..6d5df6c2efa2 100644
--- a/trunk/drivers/firmware/pcdp.c
+++ b/trunk/drivers/firmware/pcdp.c
@@ -11,7 +11,6 @@
  * 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/trunk/drivers/pci/hotplug/shpchprm_acpi.c b/trunk/drivers/pci/hotplug/shpchprm_acpi.c
index 243a51d88b86..18aa65a206a6 100644
--- a/trunk/drivers/pci/hotplug/shpchprm_acpi.c
+++ b/trunk/drivers/pci/hotplug/shpchprm_acpi.c
@@ -1626,7 +1626,7 @@ int shpchprm_set_hpp(
 	pci_bus->number = func->bus;
 	devfn = PCI_DEVFN(func->device, func->function);
 
-	ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->bus);
+	ab = find_acpi_bridge_by_bus(acpi_bridges_head, ctrl->seg, ctrl->slot_bus);
 
 	if (ab) {
 		if (ab->_hpp) {
diff --git a/trunk/fs/proc/proc_devtree.c b/trunk/fs/proc/proc_devtree.c
index 6fd57f154197..67423c696c0a 100644
--- a/trunk/fs/proc/proc_devtree.c
+++ b/trunk/fs/proc/proc_devtree.c
@@ -12,8 +12,15 @@
 #include <asm/uaccess.h>
 
 #ifndef HAVE_ARCH_DEVTREE_FIXUPS
-static inline void set_node_proc_entry(struct device_node *np,
-				       struct proc_dir_entry *de)
+static inline void set_node_proc_entry(struct device_node *np, struct proc_dir_entry *de)
+{
+}
+
+static void inline set_node_name_link(struct device_node *np, struct proc_dir_entry *de)
+{
+}
+
+static void inline set_node_addr_link(struct device_node *np, struct proc_dir_entry *de)
 {
 }
 #endif
@@ -51,67 +58,89 @@ static int property_read_proc(char *page, char **start, off_t off,
 /*
  * Process a node, adding entries for its children and its properties.
  */
-void proc_device_tree_add_node(struct device_node *np,
-			       struct proc_dir_entry *de)
+void proc_device_tree_add_node(struct device_node *np, struct proc_dir_entry *de)
 {
 	struct property *pp;
 	struct proc_dir_entry *ent;
-	struct device_node *child;
-	struct proc_dir_entry *list = NULL, **lastp;
-	const char *p;
+	struct device_node *child, *sib;
+	const char *p, *at;
+	int l;
+	struct proc_dir_entry *list, **lastp, *al;
 
 	set_node_proc_entry(np, de);
 	lastp = &list;
-	for (child = NULL; (child = of_get_next_child(np, child));) {
+	for (pp = np->properties; pp != 0; pp = pp->next) {
+		/*
+		 * Unfortunately proc_register puts each new entry
+		 * at the beginning of the list.  So we rearrange them.
+		 */
+		ent = create_proc_read_entry(pp->name, strncmp(pp->name, "security-", 9) ?
+					     S_IRUGO : S_IRUSR, de, property_read_proc, pp);
+		if (ent == 0)
+			break;
+		if (!strncmp(pp->name, "security-", 9))
+		     ent->size = 0; /* don't leak number of password chars */
+		else
+		     ent->size = pp->length;
+		*lastp = ent;
+		lastp = &ent->next;
+	}
+	child = NULL;
+	while ((child = of_get_next_child(np, child))) {
 		p = strrchr(child->full_name, '/');
 		if (!p)
 			p = child->full_name;
 		else
 			++p;
+		/* chop off '@0' if the name ends with that */
+		l = strlen(p);
+		if (l > 2 && p[l-2] == '@' && p[l-1] == '0')
+			l -= 2;
 		ent = proc_mkdir(p, de);
 		if (ent == 0)
 			break;
 		*lastp = ent;
-		ent->next = NULL;
 		lastp = &ent->next;
 		proc_device_tree_add_node(child, ent);
-	}
-	of_node_put(child);
-	for (pp = np->properties; pp != 0; pp = pp->next) {
+
 		/*
-		 * Yet another Apple device-tree bogosity: on some machines,
-		 * they have properties & nodes with the same name. Those
-		 * properties are quite unimportant for us though, thus we
-		 * simply "skip" them here, but we do have to check.
+		 * If we left the address part on the name, consider
+		 * adding symlinks from the name and address parts.
 		 */
-		for (ent = list; ent != NULL; ent = ent->next)
-			if (!strcmp(ent->name, pp->name))
-				break;
-		if (ent != NULL) {
-			printk(KERN_WARNING "device-tree: property \"%s\" name"
-			       " conflicts with node in %s\n", pp->name,
-			       np->full_name);
+		if (p[l] != 0 || (at = strchr(p, '@')) == 0)
 			continue;
-		}
 
 		/*
-		 * Unfortunately proc_register puts each new entry
-		 * at the beginning of the list.  So we rearrange them.
+		 * If this is the first node with a given name property,
+		 * add a symlink with the name property as its name.
 		 */
-		ent = create_proc_read_entry(pp->name,
-					     strncmp(pp->name, "security-", 9)
-					     ? S_IRUGO : S_IRUSR, de,
-					     property_read_proc, pp);
-		if (ent == 0)
+		sib = NULL;
+		while ((sib = of_get_next_child(np, sib)) && sib != child)
+			if (sib->name && strcmp(sib->name, child->name) == 0)
+				break;
+		if (sib == child && strncmp(p, child->name, l) != 0) {
+			al = proc_symlink(child->name, de, ent->name);
+			if (al == 0) {
+				of_node_put(sib);
+				break;
+			}
+			set_node_name_link(child, al);
+			*lastp = al;
+			lastp = &al->next;
+		}
+		of_node_put(sib);
+		/*
+		 * Add another directory with the @address part as its name.
+		 */
+		al = proc_symlink(at, de, ent->name);
+		if (al == 0)
 			break;
-		if (!strncmp(pp->name, "security-", 9))
-		     ent->size = 0; /* don't leak number of password chars */
-		else
-		     ent->size = pp->length;
-		ent->next = NULL;
-		*lastp = ent;
-		lastp = &ent->next;
+		set_node_addr_link(child, al);
+		*lastp = al;
+		lastp = &al->next;
 	}
+	of_node_put(child);
+	*lastp = NULL;
 	de->subdir = list;
 }
 
diff --git a/trunk/fs/udf/udftime.c b/trunk/fs/udf/udftime.c
index 85d8dbe843f1..457a8fe28575 100644
--- a/trunk/fs/udf/udftime.c
+++ b/trunk/fs/udf/udftime.c
@@ -46,7 +46,7 @@
 #endif
 
 /* How many days come before each month (0-12).  */
-static const unsigned short int __mon_yday[2][13] =
+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/trunk/include/asm-i386/timer.h b/trunk/include/asm-i386/timer.h
index c34709849839..40c54f69780e 100644
--- a/trunk/include/asm-i386/timer.h
+++ b/trunk/include/asm-i386/timer.h
@@ -53,7 +53,6 @@ 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/trunk/include/asm-ppc64/prom.h b/trunk/include/asm-ppc64/prom.h
index 04b1a84f7ca3..2440a2c90ae9 100644
--- a/trunk/include/asm-ppc64/prom.h
+++ b/trunk/include/asm-ppc64/prom.h
@@ -147,7 +147,9 @@ struct device_node {
 	struct	device_node *sibling;
 	struct	device_node *next;	/* next device of same type */
 	struct	device_node *allnext;	/* next in list of all nodes */
-	struct  proc_dir_entry *pde;	/* this node's proc directory */
+	struct  proc_dir_entry *pde;       /* this node's proc directory */
+	struct  proc_dir_entry *name_link; /* name symlink */
+	struct  proc_dir_entry *addr_link; /* addr symlink */
 	struct  kref kref;
 	unsigned long _flags;
 };
@@ -172,6 +174,15 @@ static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_e
 	dn->pde = de;
 }
 
+static void inline set_node_name_link(struct device_node *dn, struct proc_dir_entry *de)
+{
+	dn->name_link = de;
+}
+
+static void inline set_node_addr_link(struct device_node *dn, struct proc_dir_entry *de)
+{
+	dn->addr_link = de;
+}
 
 /* OBSOLETE: Old stlye node lookup */
 extern struct device_node *find_devices(const char *name);
diff --git a/trunk/include/linux/cpufreq.h b/trunk/include/linux/cpufreq.h
index 927daa86c9b3..f21af067d015 100644
--- a/trunk/include/linux/cpufreq.h
+++ b/trunk/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 nanoseconds - if it's unknown,
+ * Maximum transition latency is in microseconds - if it's unknown,
  * CPUFREQ_ETERNAL shall be used.
  */
 
diff --git a/trunk/kernel/module.c b/trunk/kernel/module.c
index 83b3d376708c..5734ab09d3f9 100644
--- a/trunk/kernel/module.c
+++ b/trunk/kernel/module.c
@@ -1758,7 +1758,6 @@ 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 */
@@ -1776,9 +1775,6 @@ 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,
@@ -1787,8 +1783,6 @@ 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);