rename ACPI files to remove acpi_ prefix. Why did we ever name them that way?

I don't know but it was dumb, so put them back.

1 files changed, 0 insertions, 2292 deletions

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
deleted file mode 100644
index ee2471555ddb..000000000000
--- a/drivers/acpi/acpi_processor.c
+++ /dev/null
@@ -1,2292 +0,0 @@
-/*
- * acpi_processor.c - ACPI Processor Driver ($Revision: 57 $)
- *
- *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
- *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or (at
- *  your option) any later version.
- *
- *  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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *  TBD:
- *	1. Make # power/performance states dynamic.
- *	2. Support duty_cycle values that span bit 4.
- *	3. Optimize by having scheduler determine business instead of
- *	   having us try to calculate it here.
- *	4. Need C1 timing -- must modify kernel (IRQ handler) to get this.
- *	5. Convert time values to ticks (initially) to avoid having to do
- *	   the math (acpi_get_timer_duration).
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/pm.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/delay.h>
-#include "acpi_bus.h"
-#include "acpi_drivers.h"
-
-
-#define _COMPONENT		ACPI_PROCESSOR_COMPONENT
-ACPI_MODULE_NAME		("acpi_processor")
-
-MODULE_AUTHOR("Paul Diefenbaugh");
-MODULE_DESCRIPTION(ACPI_PROCESSOR_DRIVER_NAME);
-MODULE_LICENSE("GPL");
-
-#define PREFIX				"ACPI: "
-
-#define ACPI_PROCESSOR_BUSY_METRIC	10
-
-#define ACPI_PROCESSOR_MAX_POWER	ACPI_C_STATE_COUNT
-#define ACPI_PROCESSOR_MAX_C2_LATENCY	100
-#define ACPI_PROCESSOR_MAX_C3_LATENCY	1000
-
-#define ACPI_PROCESSOR_MAX_PERFORMANCE	8
-
-#define ACPI_PROCESSOR_MAX_THROTTLING	16
-#define ACPI_PROCESSOR_MAX_THROTTLE	250	/* 25% */
-#define ACPI_PROCESSOR_MAX_DUTY_WIDTH	4
-
-const u32 POWER_OF_2[] = {1,2,4,8,16,32,64};
-
-#define ACPI_PROCESSOR_LIMIT_USER	0
-#define ACPI_PROCESSOR_LIMIT_THERMAL	1
-
-static int acpi_processor_add (struct acpi_device *device);
-static int acpi_processor_remove (struct acpi_device *device, int type);
-
-static struct acpi_driver acpi_processor_driver = {
-	name:			ACPI_PROCESSOR_DRIVER_NAME,
-	class:			ACPI_PROCESSOR_CLASS,
-	ids:			ACPI_PROCESSOR_HID,
-	ops:			{
-					add:	acpi_processor_add,
-					remove:	acpi_processor_remove,
-				},
-};
-
-/* Power Management */
-
-struct acpi_processor_cx_policy {
-	u32			count;
-	int			state;
-	struct {
-		u32			time;
-		u32			count;
-		u32			bm;
-	}			threshold;
-};
-
-struct acpi_processor_cx {
-	u8			valid;
-	u32			address;
-	u32			latency;
-	u32			power;
-	u32			usage;
-	struct acpi_processor_cx_policy promotion;
-	struct acpi_processor_cx_policy demotion;
-};
-
-struct acpi_processor_power {
-	int			state;
-	int			default_state;
-	u32			bm_activity;
-	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
-};
-
-/* Performance Management */
-
-struct acpi_pct_register {
-	u8			descriptor;
-	u16			length;
-	u8			space_id;
-	u8			bit_width;
-	u8			bit_offset;
-	u8			reserved;
-	u64			address;
-} __attribute__ ((packed));
-
-struct acpi_processor_px {
-	acpi_integer		core_frequency;		/* megahertz */
-	acpi_integer		power;			/* milliWatts */
-	acpi_integer		transition_latency;	/* microseconds */
-	acpi_integer		bus_master_latency;	/* microseconds */
-	acpi_integer		control;		/* control value */
-	acpi_integer		status;			/* success indicator */
-};
-
-struct acpi_processor_performance {
-	int			state;
-	int			platform_limit;
-	u16			control_register;
-	u16			status_register;
-	int			state_count;
-	struct acpi_processor_px states[ACPI_PROCESSOR_MAX_PERFORMANCE];
-};
-
-
-/* Throttling Control */
-
-struct acpi_processor_tx {
-	u16			power;
-	u16			performance;
-};
-
-struct acpi_processor_throttling {
-	int			state;
-	u32			address;
-	u8			duty_offset;
-	u8			duty_width;
-	int			state_count;
-	struct acpi_processor_tx states[ACPI_PROCESSOR_MAX_THROTTLING];
-};
-
-/* Limit Interface */
-
-struct acpi_processor_lx {
-	int			px;		/* performace state */	
-	int			tx;		/* throttle level */
-};
-
-struct acpi_processor_limit {
-	struct acpi_processor_lx state;		/* current limit */
-	struct acpi_processor_lx thermal;	/* thermal limit */
-	struct acpi_processor_lx user;		/* user limit */
-};
-
-
-struct acpi_processor_flags {
-	u8			power:1;
-	u8			performance:1;
-	u8			throttling:1;
-	u8			limit:1;
-	u8			bm_control:1;
-	u8			bm_check:1;
-	u8			reserved:2;
-};
-
-struct acpi_processor {
-	acpi_handle		handle;
-	u32			acpi_id;
-	u32			id;
-	struct acpi_processor_flags flags;
-	struct acpi_processor_power power;
-	struct acpi_processor_performance performance;
-	struct acpi_processor_throttling throttling;
-	struct acpi_processor_limit limit;
-};
-
-struct acpi_processor_errata {
-	u8			smp;
-	struct {
-		u8			throttle:1;
-		u8			fdma:1;
-		u8			reserved:6;
-		u32			bmisx;
-	}			piix4;
-};
-
-static struct acpi_processor	*processors[NR_CPUS];
-static struct acpi_processor_errata errata;
-static void (*pm_idle_save)(void) = NULL;
-
-
-/* --------------------------------------------------------------------------
-                                Errata Handling
-   -------------------------------------------------------------------------- */
-
-int
-acpi_processor_errata_piix4 (
-	struct pci_dev		*dev)
-{
-	u8			rev = 0;
-	u8			value1 = 0;
-	u8			value2 = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_errata_piix4");
-
-	if (!dev)
-		return_VALUE(-EINVAL);
-
-	/*
-	 * Note that 'dev' references the PIIX4 ACPI Controller.
-	 */
-
-	pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
-
-	switch (rev) {
-	case 0:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
-		break;
-	case 1:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n"));
-		break;
-	case 2:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n"));
-		break;
-	case 3:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n"));
-		break;
-	default:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n"));
-		break;
-	}
-
-	switch (rev) {
-
-	case 0:		/* PIIX4 A-step */
-	case 1:		/* PIIX4 B-step */
-		/*
-		 * See specification changes #13 ("Manual Throttle Duty Cycle")
-		 * and #14 ("Enabling and Disabling Manual Throttle"), plus
-		 * erratum #5 ("STPCLK# Deassertion Time") from the January 
-		 * 2002 PIIX4 specification update.  Applies to only older 
-		 * PIIX4 models.
-		 */
-		errata.piix4.throttle = 1;
-
-	case 2:		/* PIIX4E */
-	case 3:		/* PIIX4M */
-		/*
-		 * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA 
-		 * Livelock") from the January 2002 PIIX4 specification update.
-		 * Applies to all PIIX4 models.
-		 */
-
-		/* 
-		 * BM-IDE
-		 * ------
-		 * Find the PIIX4 IDE Controller and get the Bus Master IDE 
-		 * Status register address.  We'll use this later to read 
-		 * each IDE controller's DMA status to make sure we catch all
-		 * DMA activity.
-		 */
-		dev = pci_find_subsys(PCI_VENDOR_ID_INTEL,
-		           PCI_DEVICE_ID_INTEL_82371AB, 
-                           PCI_ANY_ID, PCI_ANY_ID, NULL);
-		if (dev)
-			errata.piix4.bmisx = pci_resource_start(dev, 4);
-
-		/* 
-		 * Type-F DMA
-		 * ----------
-		 * Find the PIIX4 ISA Controller and read the Motherboard
-		 * DMA controller's status to see if Type-F (Fast) DMA mode
-		 * is enabled (bit 7) on either channel.  Note that we'll 
-		 * disable C3 support if this is enabled, as some legacy 
-		 * devices won't operate well if fast DMA is disabled.
-		 */
-		dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, 
-			PCI_DEVICE_ID_INTEL_82371AB_0, 
-			PCI_ANY_ID, PCI_ANY_ID, NULL);
-		if (dev) {
-			pci_read_config_byte(dev, 0x76, &value1);
-			pci_read_config_byte(dev, 0x77, &value2);
-			if ((value1 & 0x80) || (value2 & 0x80))
-				errata.piix4.fdma = 1;
-		}
-
-		break;
-	}
-
-	if (errata.piix4.bmisx)
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"Bus master activity detection (BM-IDE) erratum enabled\n"));
-	if (errata.piix4.fdma)
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"Type-F DMA livelock erratum (C3 disabled)\n"));
-
-	return_VALUE(0);
-}
-
-
-int
-acpi_processor_errata (
-	struct acpi_processor	*pr)
-{
-	int			result = 0;
-	struct pci_dev		*dev = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_errata");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	/*
-	 * PIIX4
-	 */
-	dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, 
-		PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID, PCI_ANY_ID, NULL);
-	if (dev)
-		result = acpi_processor_errata_piix4(dev);
-
-	return_VALUE(result);
-}
-
-
-/* --------------------------------------------------------------------------
-                                Power Management
-   -------------------------------------------------------------------------- */
-
-static void
-acpi_processor_power_activate (
-	struct acpi_processor	*pr,
-	int			state)
-{
-	if (!pr)
-		return;
-
-	pr->power.states[pr->power.state].promotion.count = 0;
-	pr->power.states[pr->power.state].demotion.count = 0;
-
-	/* Cleanup from old state. */
-	switch (pr->power.state) {
-	case ACPI_STATE_C3:
-		/* Disable bus master reload */
-		acpi_hw_bit_register_write(ACPI_BITREG_BUS_MASTER_RLD, 0, ACPI_MTX_DO_NOT_LOCK);
-		break;
-	}
-
-	/* Prepare to use new state. */
-	switch (state) {
-	case ACPI_STATE_C3:
-		/* Enable bus master reload */
-		acpi_hw_bit_register_write(ACPI_BITREG_BUS_MASTER_RLD, 1, ACPI_MTX_DO_NOT_LOCK);
-		break;
-	}
-
-	pr->power.state = state;
-
-	return;
-}
-
-
-static void
-acpi_processor_idle (void)
-{
-	struct acpi_processor	*pr = NULL;
-	struct acpi_processor_cx *cx = NULL;
-	int			next_state = 0;
-	u32			start_ticks = 0;
-	u32			end_ticks = 0;
-	u32			time_elapsed = 0;
-
-	pr = processors[smp_processor_id()];
-	if (!pr)
-		return;
-
-	/*
-	 * Interrupts must be disabled during bus mastering calculations and
-	 * for C2/C3 transitions.
-	 */
-	__cli();
-
-	cx = &(pr->power.states[pr->power.state]);
-
-	/*
-	 * Check BM Activity
-	 * -----------------
-	 * Check for bus mastering activity (if required), record, and check
-	 * for demotion.
-	 */
-	if (pr->flags.bm_check) {
-
-		pr->power.bm_activity <<= 1;
-		pr->power.bm_activity &= 0xFFFFFFFE;
-
-		if (acpi_hw_bit_register_read(ACPI_BITREG_BUS_MASTER_STATUS, ACPI_MTX_DO_NOT_LOCK)) {
-			pr->power.bm_activity++;
-			acpi_hw_bit_register_write(ACPI_BITREG_BUS_MASTER_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
-		}
-		/*
-		 * PIIX4 Erratum #18: Note that BM_STS doesn't always reflect
-		 * the true state of bus mastering activity; forcing us to 
-		 * manually check the BMIDEA bit of each IDE channel.
-		 */
-		else if (errata.piix4.bmisx) {
-			if ((inb_p(errata.piix4.bmisx + 0x02) & 0x01) 
-				|| (inb_p(errata.piix4.bmisx + 0x0A) & 0x01))
-				pr->power.bm_activity++;
-		}
-
-		/*
-		 * Apply bus mastering demotion policy.  Automatically demote
-		 * to avoid a faulty transition.  Note that the processor 
-		 * won't enter a low-power state during this call (to this 
-		 * funciton) but should upon the next.
-		 */
-		if (pr->power.bm_activity & cx->demotion.threshold.bm) {
-			__sti();
-			next_state = cx->demotion.state;
-			goto end;
-		}
-	}
-
-	cx->usage++;
-
-	/*
-	 * Sleep:
-	 * ------
-	 * Invoke the current Cx state to put the processor to sleep.
-	 */
-	switch (pr->power.state) {
-
-	case ACPI_STATE_C1:
-		/* Invoke C1. */
-		safe_halt();
-		/*
-                 * TBD: Can't get time duration while in C1, as resumes
-		 *      go to an ISR rather than here.  Need to instrument
-		 *      base interrupt handler.
-		 */
-		time_elapsed = 0xFFFFFFFF;
-		break;
-
-	case ACPI_STATE_C2:
-		/* See how long we're asleep for */
-		start_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Invoke C2 */
-		inb(pr->power.states[ACPI_STATE_C2].address);
-		/* Dummy op - must do something useless after P_LVL2 read */
-		end_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Compute time elapsed */
-		end_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Re-enable interrupts */
-		__sti();
-		/*
-		 * Compute the amount of time asleep (in the Cx state).
-		 * TBD: Convert to PM timer ticks initially to avoid having
-		 *      to do the math (acpi_get_timer_duration).
-		 */
-		acpi_get_timer_duration(start_ticks, end_ticks, &time_elapsed);
-		break;
-
-	case ACPI_STATE_C3:
-		/* Disable bus master arbitration */
-		acpi_hw_bit_register_write(ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK);
-		/* See how long we're asleep for */
-		start_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Invoke C3 */
-		inb(pr->power.states[ACPI_STATE_C3].address);
-		/* Dummy op - must do something useless after P_LVL3 read */
-		end_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Compute time elapsed */
-		end_ticks = inl(acpi_fadt.Xpm_tmr_blk.address);
-		/* Enable bus master arbitration */
-		acpi_hw_bit_register_write(ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_DO_NOT_LOCK);
-		/* Re-enable interrupts */
-		__sti();
-		/*
-		 * Compute the amount of time asleep (in the Cx state).
-		 * TBD: Convert to PM timer ticks initially to avoid having
-		 *      to do the math (acpi_get_timer_duration).
-		 */
-		acpi_get_timer_duration(start_ticks, end_ticks, &time_elapsed);
-		break;
-
-	default:
-		__sti();
-		return;
-	}
-
-	next_state = pr->power.state;
-
-	/*
-	 * Promotion?
-	 * ----------
-	 * Track the number of longs (time asleep is greater than threshold)
-	 * and promote when the count threshold is reached.  Note that bus
-	 * mastering activity may prevent promotions.
-	 */
-	if (cx->promotion.state) {
-		if (time_elapsed >= cx->promotion.threshold.time) {
-			cx->promotion.count++;
- 			cx->demotion.count = 0;
-			if (cx->promotion.count >= cx->promotion.threshold.count) {
-				if (pr->flags.bm_check) {
-					if (!(pr->power.bm_activity & cx->promotion.threshold.bm)) {
-						next_state = cx->promotion.state;
-						goto end;
-					}
-				}
-				else {
-					next_state = cx->promotion.state;
-					goto end;
-				}
-			}
-		}
-	}
-
-	/*
-	 * Demotion?
-	 * ---------
-	 * Track the number of shorts (time asleep is less than time threshold)
-	 * and demote when the usage threshold is reached.  Note that bus
-	 * mastering demotions are checked prior to state transitions (above).
-	 */
-	if (cx->demotion.state) {
-		if (time_elapsed < cx->demotion.threshold.time) {
-			cx->demotion.count++;
-			cx->promotion.count = 0;
-			if (cx->demotion.count >= cx->demotion.threshold.count) {
-				next_state = cx->demotion.state;
-				goto end;
-			}
-		}
-	}
-
-end:
-	/*
-	 * New Cx State?
-	 * -------------
-	 * If we're going to start using a new Cx state we must clean up
-	 * from the previous and prepare to use the new.
-	 */
-	if (next_state != pr->power.state)
-		acpi_processor_power_activate(pr, next_state);
-
-	return;
-}
-
-
-static int
-acpi_processor_set_power_policy (
-	struct acpi_processor	*pr)
-{
-	ACPI_FUNCTION_TRACE("acpi_processor_set_power_policy");
-
-	/*
-	 * This function sets the default Cx state policy (OS idle handler).
-	 * Our scheme is to promote quickly to C2 but more conservatively
-	 * to C3.  We're favoring C2  for its characteristics of low latency
-	 * (quick response), good power savings, and ability to allow bus
-	 * mastering activity.  Note that the Cx state policy is completely
-	 * customizable and can be altered dynamically.
-	 */
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	/*
-	 * C0/C1
-	 * -----
-	 */
-	pr->power.state = ACPI_STATE_C1;
-	pr->power.default_state = ACPI_STATE_C1;
-
-	/*
-	 * C1/C2
-	 * -----
-	 * Set the default C1 promotion and C2 demotion policies, where we
-	 * promote from C1 to C2 after several (10) successive C1 transitions,
-	 * as we cannot (currently) measure the time spent in C1. Demote from
-	 * C2 to C1 after experiencing several (3) 'shorts' (time spent in C2
-	 * is less than the C2 transtional latency).
-	 */
-	if (pr->power.states[ACPI_STATE_C2].valid) {
-		pr->power.states[ACPI_STATE_C1].promotion.threshold.count = 10;
-		pr->power.states[ACPI_STATE_C1].promotion.threshold.time =
-			pr->power.states[ACPI_STATE_C2].latency;
-		pr->power.states[ACPI_STATE_C1].promotion.state = ACPI_STATE_C2;
-
-		pr->power.states[ACPI_STATE_C2].demotion.threshold.count = 3;
-		pr->power.states[ACPI_STATE_C2].demotion.threshold.time =
-			pr->power.states[ACPI_STATE_C2].latency;
-		pr->power.states[ACPI_STATE_C2].demotion.state = ACPI_STATE_C1;
-	}
-
-	/*
-	 * C2/C3
-	 * -----
-	 * Set default C2 promotion and C3 demotion policies, where we promote
-	 * from C2 to C3 after 4 cycles (0x0F) of no bus mastering activity
-	 * (while maintaining sleep time criteria).  Demote immediately on a
-	 * short or whenever bus mastering activity occurs.
-	 */
-	if ((pr->power.states[ACPI_STATE_C2].valid) &&
-		(pr->power.states[ACPI_STATE_C3].valid)) {
-		pr->power.states[ACPI_STATE_C2].promotion.threshold.count = 1;
-		pr->power.states[ACPI_STATE_C2].promotion.threshold.time =
-			pr->power.states[ACPI_STATE_C3].latency;
-		pr->power.states[ACPI_STATE_C2].promotion.threshold.bm = 0x0F;
-		pr->power.states[ACPI_STATE_C2].promotion.state = ACPI_STATE_C3;
-
-		pr->power.states[ACPI_STATE_C3].demotion.threshold.count = 1;
-		pr->power.states[ACPI_STATE_C3].demotion.threshold.time =
-			pr->power.states[ACPI_STATE_C3].latency;
-		pr->power.states[ACPI_STATE_C3].demotion.threshold.bm = 0x0F;
-		pr->power.states[ACPI_STATE_C3].demotion.state = ACPI_STATE_C2;
-	}
-
-	return_VALUE(0);
-}
-
-
-int
-acpi_processor_get_power_info (
-	struct acpi_processor	*pr)
-{
-	int			result = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-		"lvl2[0x%08x] lvl3[0x%08x]\n",
-		pr->power.states[ACPI_STATE_C2].address,
-		pr->power.states[ACPI_STATE_C3].address));
-
-	/* TBD: Support ACPI 2.0 objects */
-
-	/*
-	 * C0
-	 * --
-	 * This state exists only as filler in our array.
-	 */
-	pr->power.states[ACPI_STATE_C0].valid = 1;
-
-	/*
-	 * C1
-	 * --
-	 * ACPI requires C1 support for all processors.
-	 *
-	 * TBD: What about PROC_C1?
-	 */
-	pr->power.states[ACPI_STATE_C1].valid = 1;
-
-	/*
-	 * C2
-	 * --
-	 * We're (currently) only supporting C2 on UP systems.
-	 *
-	 * TBD: Support for C2 on MP (P_LVL2_UP).
-	 */
-	if (pr->power.states[ACPI_STATE_C2].address) {
-
-		pr->power.states[ACPI_STATE_C2].latency = acpi_fadt.plvl2_lat;
-
-		/*
-		 * C2 latency must be less than or equal to 100 microseconds.
-		 */
-		if (acpi_fadt.plvl2_lat >= ACPI_PROCESSOR_MAX_C2_LATENCY)
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C2 latency too large [%d]\n",
-				acpi_fadt.plvl2_lat));
-		/*
-		 * Only support C2 on UP systems (see TBD above).
-		 */
-		else if (errata.smp)
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C2 not supported in SMP mode\n"));
-		/*
-		 * Otherwise we've met all of our C2 requirements.
-		 */
-		else
-			pr->power.states[ACPI_STATE_C2].valid = 1;
-	}
-
-	/*
-	 * C3
-	 * --
-	 * TBD: Investigate use of WBINVD on UP/SMP system in absence of
-	 *	bm_control.
-	 */
-	if (pr->power.states[ACPI_STATE_C3].address) {
-
-		pr->power.states[ACPI_STATE_C3].latency = acpi_fadt.plvl3_lat;
-
-		/*
-		 * C3 latency must be less than or equal to 1000 microseconds.
-		 */
-		if (acpi_fadt.plvl3_lat >= ACPI_PROCESSOR_MAX_C3_LATENCY)
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C3 latency too large [%d]\n", 
-				acpi_fadt.plvl3_lat));
-		/*
-		 * Only support C3 when bus mastering arbitration control
-		 * is present (able to disable bus mastering to maintain
-		 * cache coherency while in C3).
-		 */
-		else if (!pr->flags.bm_control)
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C3 support requires bus mastering control\n"));
-		/*
-		 * Only support C3 on UP systems, as bm_control is only viable
-		 * on a UP system and flushing caches (e.g. WBINVD) is simply 
-		 * too costly (at this time).
-		 */
-		else if (errata.smp)
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C3 not supported in SMP mode\n"));
-		/*
-		 * PIIX4 Erratum #18: We don't support C3 when Type-F (fast) 
-		 * DMA transfers are used by any ISA device to avoid livelock.
-		 * Note that we could disable Type-F DMA (as recommended by
-		 * the erratum), but this is known to disrupt certain ISA 
-		 * devices thus we take the conservative approach.
-		 */
-		else if (errata.piix4.fdma) {
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				"C3 not supported on PIIX4 with Type-F DMA\n"));
-		}
-		/*
-		 * Otherwise we've met all of our C3 requirements.  Enable
-		 * checking of bus mastering status (bm_check) so we can 
-		 * use this in our C3 policy.
-		 */
-		else {
-			pr->power.states[ACPI_STATE_C3].valid = 1;
-			pr->flags.bm_check = 1;
-		}
-	}
-
-	/*
-	 * Set Default Policy
-	 * ------------------
-	 * Now that we know which state are supported, set the default
-	 * policy.  Note that this policy can be changed dynamically
-	 * (e.g. encourage deeper sleeps to conserve battery life when
-	 * not on AC).
-	 */
-	result = acpi_processor_set_power_policy(pr);
-	if (0 != result)
-		return_VALUE(result);
-
-	/*
-	 * If this processor supports C2 or C3 we denote it as being 'power
-	 * manageable'.  Note that there's really no policy involved for
-	 * when only C1 is supported.
-	 */
-	if (pr->power.states[ACPI_STATE_C2].valid 
-		|| pr->power.states[ACPI_STATE_C3].valid)
-		pr->flags.power = 1;
-
-	return_VALUE(0);
-}
-
-
-/* --------------------------------------------------------------------------
-                              Performance Management
-   -------------------------------------------------------------------------- */
-
-static int 
-acpi_processor_get_platform_limit (
-	struct acpi_processor*	pr)
-{
-	acpi_status		status = 0;
-	unsigned long		ppc = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_platform_limit");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	/*
-	 * _PPC indicates the maximum state currently supported by the platform
-	 * (e.g. 0 = states 0..n; 1 = states 1..n; etc.
-	 */
-	status = acpi_evaluate_integer(pr->handle, "_PPC", NULL, &ppc);
-	if(ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PPC\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	pr->performance.platform_limit = (int) ppc;
-
-	return_VALUE(0);
-}
-
-
-static int 
-acpi_processor_get_performance_control (
-	struct acpi_processor	*pr)
-{
-	int			result = 0;
-	acpi_status		status = 0;
-	acpi_buffer		buffer = {ACPI_ALLOCATE_BUFFER, NULL};
-	acpi_object		*pct = NULL;
-	acpi_object		obj = {0};
-	struct acpi_pct_register *reg = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_control");
-
-	status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer);
-	if(ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PCT\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	pct = (acpi_object *) buffer.pointer;
-	if (!pct || (pct->type != ACPI_TYPE_PACKAGE) 
-		|| (pct->package.count != 2)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PCT data\n"));
-		result = -EFAULT;
-		goto end;
-	}
-
-	/*
-	 * control_register
-	 */
-
-	obj = pct->package.elements[0];
-
-	if ((obj.type != ACPI_TYPE_BUFFER) 
-		|| (obj.buffer.length < sizeof(struct acpi_pct_register)) 
-		|| (obj.buffer.pointer == NULL)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
-			"Invalid _PCT data (control_register)\n"));
-		result = -EFAULT;
-		goto end;
-	}
-
-	reg = (struct acpi_pct_register *) (obj.buffer.pointer);
-
-	if (reg->space_id != ACPI_ADR_SPACE_SYSTEM_IO) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unsupported address space [%d] (control_register)\n",
-			(u32) reg->space_id));
-		result = -EFAULT;
-		goto end;
-	}
-
-	pr->performance.control_register = (u16) reg->address;
-
-	/*
-	 * status_register
-	 */
-
-	obj = pct->package.elements[1];
-
-	if ((obj.type != ACPI_TYPE_BUFFER) 
-		|| (obj.buffer.length < sizeof(struct acpi_pct_register)) 
-		|| (obj.buffer.pointer == NULL)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
-			"Invalid _PCT data (status_register)\n"));
-		result = -EFAULT;
-		goto end;
-	}
-
-	reg = (struct acpi_pct_register *) (obj.buffer.pointer);
-
-	if (reg->space_id != ACPI_ADR_SPACE_SYSTEM_IO) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unsupported address space [%d] (status_register)\n",
-			(u32) reg->space_id));
-		result = -EFAULT;
-		goto end;
-	}
-
-	pr->performance.status_register = (u16) reg->address;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"control_register[0x%04x] status_register[0x%04x]\n",
-		pr->performance.control_register,
-		pr->performance.status_register));
-
-end:
-	kfree(buffer.pointer);
-
-	return_VALUE(result);
-}
-
-
-static int 
-acpi_processor_get_performance_states (
-	struct acpi_processor*	pr)
-{
-	int			result = 0;
-	acpi_status		status = AE_OK;
-	acpi_buffer		buffer = {ACPI_ALLOCATE_BUFFER, NULL};
-	acpi_buffer		format = {sizeof("NNNNNN"), "NNNNNN"};
-	acpi_buffer		state = {0, NULL};
-	acpi_object 		*pss = NULL;
-	int			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_states");
-
-	status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer);
-	if(ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _PSS\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	pss = (acpi_object *) buffer.pointer;
-	if (!pss || (pss->type != ACPI_TYPE_PACKAGE)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSS data\n"));
-		result = -EFAULT;
-		goto end;
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d performance states\n", 
-		pss->package.count));
-
-	if (pss->package.count > ACPI_PROCESSOR_MAX_PERFORMANCE) {
-		pr->performance.state_count = ACPI_PROCESSOR_MAX_PERFORMANCE;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"Limiting number of states to max (%d)\n", 
-			ACPI_PROCESSOR_MAX_PERFORMANCE));
-	}
-	else
-		pr->performance.state_count = pss->package.count;
-
-	if (pr->performance.state_count > 1)
-		pr->flags.performance = 1;
-
-	for (i = 0; i < pr->performance.state_count; i++) {
-
-		struct acpi_processor_px *px = &(pr->performance.states[i]);
-
-		state.length = sizeof(struct acpi_processor_px);
-		state.pointer = px;
-
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Extracting state %d\n", i));
-
-		status = acpi_extract_package(&(pss->package.elements[i]), 
-			&format, &state);
-		if (ACPI_FAILURE(status)) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSS data\n"));
-			result = -EFAULT;
-			goto end;
-		}
-
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"State [%d]: core_frequency[%d] power[%d] transition_latency[%d] bus_master_latency[%d] control[0x%x] status[0x%x]\n",
-			i, 
-			(u32) px->core_frequency, 
-			(u32) px->power, 
-			(u32) px->transition_latency, 
-			(u32) px->bus_master_latency,
-			(u32) px->control, 
-			(u32) px->status));
-	}
-
-end:
-	kfree(buffer.pointer);
-
-	return_VALUE(result);
-}
-
-
-static int
-acpi_processor_set_performance (
-	struct acpi_processor	*pr,
-	int			state)
-{
-	u16			port = 0;
-	u8			value = 0;
-	int			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_set_performance");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	if (!pr->flags.performance)
-		return_VALUE(-ENODEV);
-
-	if (state >= pr->performance.state_count) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, 
-			"Invalid target state (P%d)\n", state));
-		return_VALUE(-ENODEV);
-	}
-
-	if (state < pr->performance.platform_limit) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, 
-			"Platform limit (P%d) overrides target state (P%d)\n",
-			pr->performance.platform_limit, state));
-		return_VALUE(-ENODEV);
-	}
-
-	if (state == pr->performance.state) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"Already at target state (P%d)\n", state));
-		return_VALUE(0);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Transitioning from P%d to P%d\n",
-		pr->performance.state, state));
-
-	/*
-	 * First we write the target state's 'control' value to the
-	 * control_register.
-	 */
-
-	port = pr->performance.control_register;
-	value = (u16) pr->performance.states[state].control;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"Writing 0x%02x to port 0x%04x\n", value, port));
-
-	outb(value, port); 
-
-	/*
-	 * Then we read the 'status_register' and compare the value with the
-	 * target state's 'status' to make sure the transition was successful.
-	 * Note that we'll poll for up to 1ms (100 cycles of 10us) before
-	 * giving up.
-	 */
-
-	port = pr->performance.status_register;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"Looking for 0x%02x from port 0x%04x\n",
-		(u8) pr->performance.states[state].status, port));
-
-	for (i=0; i<100; i++) {
-		value = inb(port);
-		if (value == (u8) pr->performance.states[state].status)
-			break;
-		udelay(10);
-	}
-
-	if (value != pr->performance.states[state].status) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Transition failed\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"Transition successful after %d microseconds\n",
-		i * 10));
-
-	pr->performance.state = state;
-
-	return_VALUE(0);
-}
-
-
-static int
-acpi_processor_get_performance_info (
-	struct acpi_processor	*pr)
-{
-	int			result = 0;
-	acpi_status		status = AE_OK;
-	acpi_handle		handle = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_performance_info");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	status = acpi_get_handle(pr->handle, "_PCT", &handle);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"ACPI-based processor performance control unavailable\n"));
-		return_VALUE(0);
-	}
-
-	result = acpi_processor_get_performance_control(pr);
-	if (0 != result)
-		return_VALUE(result);
-
-	result = acpi_processor_get_performance_states(pr);
-	if (0 != result)
-		return_VALUE(result);
-
-	result = acpi_processor_get_platform_limit(pr);
-	if (0 != result)
-		return_VALUE(result);
-
-	/* 
-	 * TBD: Don't trust the latency values we get from BIOS, but rather
-	 *      measure the latencies during run-time (e.g. get_latencies).
-	 */
-
-	return_VALUE(0);
-}
-
-
-/* --------------------------------------------------------------------------
-                              Throttling Control
-   -------------------------------------------------------------------------- */
-
-static int
-acpi_processor_get_throttling (
-	struct acpi_processor	*pr)
-{
-	int			state = 0;
-	u32			value = 0;
-	u32			duty_mask = 0;
-	u32			duty_value = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_throttling");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	if (!pr->flags.throttling)
-		return_VALUE(-ENODEV);
-
-	pr->throttling.state = 0;
-
-	__cli();
-
-	duty_mask = pr->throttling.state_count - 1;
-
-	duty_mask <<= pr->throttling.duty_offset;
-
-	value = inl(pr->throttling.address);
-
-	/*
-	 * Compute the current throttling state when throttling is enabled
-	 * (bit 4 is on).
-	 */
-	if (value & 0x10) {
-		duty_value = value & duty_mask;
-		duty_value >>= pr->throttling.duty_offset;
-
-		if (duty_value)
-			state = pr->throttling.state_count-duty_value;
-	}
-
-	pr->throttling.state = state;
-
-	__sti();
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"Throttling state is T%d (%d%% throttling applied)\n",
-		state, pr->throttling.states[state].performance));
-
-	return_VALUE(0);
-}
-
-
-static int
-acpi_processor_set_throttling (
-	struct acpi_processor	*pr,
-	int			state)
-{
-	u32                     value = 0;
-	u32                     duty_mask = 0;
-	u32                     duty_value = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_set_throttling");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	if ((state < 0) || (state > (pr->throttling.state_count - 1)))
-		return_VALUE(-EINVAL);
-
-	if (!pr->flags.throttling)
-		return_VALUE(-ENODEV);
-
-	if (state == pr->throttling.state)
-		return_VALUE(0);
-
-	__cli();
-
-	/*
-	 * Calculate the duty_value and duty_mask.
-	 */
-	if (state) {
-		duty_value = pr->throttling.state_count - state;
-
-		duty_value <<= pr->throttling.duty_offset;
-
-		/* Used to clear all duty_value bits */
-		duty_mask = pr->throttling.state_count - 1;
-
-		duty_mask <<= acpi_fadt.duty_offset;
-		duty_mask = ~duty_mask;
-	}
-
-	/*
-	 * Disable throttling by writing a 0 to bit 4.  Note that we must
-	 * turn it off before you can change the duty_value.
-	 */
-	value = inl(pr->throttling.address);
-	if (value & 0x10) {
-		value &= 0xFFFFFFEF;
-		outl(value, pr->throttling.address);
-	}
-
-	/*
-	 * Write the new duty_value and then enable throttling.  Note
-	 * that a state value of 0 leaves throttling disabled.
-	 */
-	if (state) {
-		value &= duty_mask;
-		value |= duty_value;
-		outl(value, pr->throttling.address);
-
-		value |= 0x00000010;
-		outl(value, pr->throttling.address);
-	}
-
-	pr->throttling.state = state;
-
-	__sti();
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-		"Throttling state set to T%d (%d%%)\n", state, 
-		(pr->throttling.states[state].performance?pr->throttling.states[state].performance/10:0)));
-
-	return_VALUE(0);
-}
-
-
-static int
-acpi_processor_get_throttling_info (
-	struct acpi_processor	*pr)
-{
-	int			result = 0;
-	int			step = 0;
-	int			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_throttling_info");
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-		"pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
-		pr->throttling.address,
-		pr->throttling.duty_offset,
-		pr->throttling.duty_width));
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	/* TBD: Support ACPI 2.0 objects */
-
-	if (!pr->throttling.address) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
-		return_VALUE(0);
-	}
-	else if (!pr->throttling.duty_width) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
-		return_VALUE(0);
-	}
-	/* TBD: Support duty_cycle values that span bit 4. */
-	else if ((pr->throttling.duty_offset
-		+ pr->throttling.duty_width) > 4) {
-		ACPI_DEBUG_PRINT((ACPI_DB_WARN, "duty_cycle spans bit 4\n"));
-		return_VALUE(0);
-	}
-
-	/*
-	 * PIIX4 Errata: We don't support throttling on the original PIIX4.
-	 * This shouldn't be an issue as few (if any) mobile systems ever
-	 * used this part.
-	 */
-	if (errata.piix4.throttle) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-			"Throttling not supported on PIIX4 A- or B-step\n"));
-		return_VALUE(0);
-	}
-
-	pr->throttling.state_count = POWER_OF_2[acpi_fadt.duty_width];
-
-	/*
-	 * Compute state values. Note that throttling displays a linear power/
-	 * performance relationship (at 50% performance the CPU will consume
-	 * 50% power).  Values are in 1/10th of a percent to preserve accuracy.
-	 */
-
-	step = (1000 / pr->throttling.state_count);
-
-	for (i=0; i<pr->throttling.state_count; i++) {
-		pr->throttling.states[i].performance = step * i;
-		pr->throttling.states[i].power = step * i;
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d throttling states\n", 
-		pr->throttling.state_count));
-
-	pr->flags.throttling = 1;
-
-	/*
-	 * Disable throttling (if enabled).  We'll let subsequent policy (e.g. 
-	 * thermal) decide to lower performance if it so chooses, but for now 
-	 * we'll crank up the speed.
-	 */
-
-	result = acpi_processor_get_throttling(pr);
-	if (0 != result)
-		goto end;
-
-	if (pr->throttling.state) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabling throttling (was T%d)\n", 
-			pr->throttling.state));
-		result = acpi_processor_set_throttling(pr, 0);
-		if (0 != result)
-			goto end;
-	}
-
-end:
-	if (0 != result)
-		pr->flags.throttling = 0;
-
-	return_VALUE(result);
-}
-
-
-/* --------------------------------------------------------------------------
-                                 Limit Interface
-   -------------------------------------------------------------------------- */
-
-static int
-acpi_processor_apply_limit (
-	struct acpi_processor* 	pr)
-{
-	int			result = 0;
-	u16			px = 0;
-	u16			tx = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_apply_limit");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	if (!pr->flags.limit)
-		return_VALUE(-ENODEV);
-
-	if (pr->flags.performance) {
-		px = pr->performance.platform_limit;
-		if (pr->limit.user.px > px)
-			px = pr->limit.user.px;
-		if (pr->limit.thermal.px > px)
-			px = pr->limit.thermal.px;
-
-		result = acpi_processor_set_performance(pr, px);
-		if (0 != result)
-			goto end;
-	}
-
-	if (pr->flags.throttling) {
-		if (pr->limit.user.tx > tx)
-			tx = pr->limit.user.tx;
-		if (pr->limit.thermal.tx > tx)
-			tx = pr->limit.thermal.tx;
-
-		result = acpi_processor_set_throttling(pr, tx);
-		if (0 != result)
-			goto end;
-	}
-
-	pr->limit.state.px = px;
-	pr->limit.state.tx = tx;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d] limit set to (P%d:T%d)\n",
-		pr->id,
-		pr->limit.state.px,
-		pr->limit.state.tx));
-
-end:
-	if (0 != result)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unable to set limit\n"));
-
-	return_VALUE(result);
-}
-
-
-int
-acpi_processor_set_thermal_limit (
-	acpi_handle		handle,
-	int			type)
-{
-	int			result = 0;
-	struct acpi_processor	*pr = NULL;
-	struct acpi_device	*device = NULL;
-	int			px = 0;
-	int			tx = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_set_thermal_limit");
-
-	if ((type < ACPI_PROCESSOR_LIMIT_NONE) 
-		|| (type > ACPI_PROCESSOR_LIMIT_DECREMENT))
-		return_VALUE(-EINVAL);
-
-	result = acpi_bus_get_device(handle, &device);
-	if (0 != result)
-		return_VALUE(result);
-
-	pr = (struct acpi_processor *) acpi_driver_data(device);
-	if (!pr)
-		return_VALUE(-ENODEV);
-
-	if (!pr->flags.limit)
-		return_VALUE(-ENODEV);
-
-	/* Thermal limits are always relative to the current Px/Tx state. */
-	if (pr->flags.performance)
-		pr->limit.thermal.px = pr->performance.state;
-	if (pr->flags.throttling)
-		pr->limit.thermal.tx = pr->throttling.state;
-
-	/*
-	 * Our default policy is to only use throttling at the lowest
-	 * performance state.
-	 */
-
-	switch (type) {
-
-	case ACPI_PROCESSOR_LIMIT_NONE:
-		px = 0;
-		tx = 0;
-		break;
-
-	case ACPI_PROCESSOR_LIMIT_INCREMENT:
-		if (pr->flags.performance) {
-			if (px == (pr->performance.state_count - 1))
-				ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-					"At maximum performance state\n"));
-			else {
-				px++;
-				goto end;
-			}
-		}
-		if (pr->flags.throttling) {
-			if (tx == (pr->throttling.state_count - 1))
-				ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-					"At maximum throttling state\n"));
-			else
-				tx++;
-		}
-		break;
-
-	case ACPI_PROCESSOR_LIMIT_DECREMENT:
-		if (pr->flags.performance) {
-			if (px == pr->performance.platform_limit)
-				ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-					"At minimum performance state\n"));
-			else  {
-				px--;
-				goto end;
-			}
-		}
-		if (pr->flags.throttling) {
-			if (tx == 0)
-				ACPI_DEBUG_PRINT((ACPI_DB_INFO, 
-					"At minimum throttling state\n"));
-			else
-				tx--;
-		}
-		break;
-	}
-
-end:
-	pr->limit.thermal.px = px;
-	pr->limit.thermal.tx = tx;
-
-	result = acpi_processor_apply_limit(pr);
-	if (0 != result)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
-			"Unable to set thermal limit\n"));
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Thermal limit now (P%d:T%d)\n",
-		pr->limit.thermal.px,
-		pr->limit.thermal.tx));
-
-	return_VALUE(result);
-}
-
-
-static int
-acpi_processor_get_limit_info (
-	struct acpi_processor	*pr)
-{
-	ACPI_FUNCTION_TRACE("acpi_processor_get_limit_info");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-	if (pr->flags.performance || pr->flags.throttling)
-		pr->flags.limit = 1;
-
-	return_VALUE(0);
-}
-
-
-/* --------------------------------------------------------------------------
-                              FS Interface (/proc)
-   -------------------------------------------------------------------------- */
-
-#include <linux/compatmac.h>
-#include <linux/proc_fs.h>
-
-struct proc_dir_entry		*acpi_processor_dir = NULL;
-
-static int
-acpi_processor_read_info (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*data)
-{
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			*p = page;
-	int			len = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_read_info");
-
-	if (!pr || (off != 0))
-		goto end;
-
-	p += sprintf(p, "processor id:            %d\n",
-		pr->id);
-
-	p += sprintf(p, "acpi id:                 %d\n",
-		pr->acpi_id);
-
-	p += sprintf(p, "bus mastering control:   %s\n",
-		pr->flags.bm_control ? "yes" : "no");
-
-	p += sprintf(p, "power management:        %s\n",
-		pr->flags.power ? "yes" : "no");
-
-	p += sprintf(p, "throttling control:      %s\n",
-		pr->flags.throttling ? "yes" : "no");
-
-	p += sprintf(p, "performance management:  %s\n",
-		pr->flags.performance ? "yes" : "no");
-
-	p += sprintf(p, "limit interface:         %s\n",
-		pr->flags.limit ? "yes" : "no");
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-
-	return_VALUE(len);
-}
-
-
-static int
-acpi_processor_read_power (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*data)
-{
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			*p = page;
-	int			len = 0;
-	int			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_read_power");
-
-	if (!pr || (off != 0))
-		goto end;
-
-	p += sprintf(p, "active state:            C%d\n",
-		pr->power.state);
-
-	p += sprintf(p, "default state:           C%d\n",
-		pr->power.default_state);
-
-	p += sprintf(p, "bus master activity:     %08x\n",
-		pr->power.bm_activity);
-
-	p += sprintf(p, "states:\n");
-
-	for (i=1; i<ACPI_C_STATE_COUNT; i++) {
-
-		p += sprintf(p, "   %cC%d:                  ", 
-			(i == pr->power.state?'*':' '), i);
-
-		if (!pr->power.states[i].valid) {
-			p += sprintf(p, "<not supported>\n");
-			continue;
-		}
-
-		if (pr->power.states[i].promotion.state)
-			p += sprintf(p, "promotion[C%d] ",
-				pr->power.states[i].promotion.state);
-		else
-			p += sprintf(p, "promotion[--] ");
-
-		if (pr->power.states[i].demotion.state)
-			p += sprintf(p, "demotion[C%d] ",
-				pr->power.states[i].demotion.state);
-		else
-			p += sprintf(p, "demotion[--] ");
-
-		p += sprintf(p, "latency[%03d] usage[%08d]\n",
-			pr->power.states[i].latency,
-			pr->power.states[i].usage);
-	}
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-
-	return_VALUE(len);
-}
-
-
-static int
-acpi_processor_read_performance (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*data)
-{
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			*p = page;
-	int			len = 0;
-	int			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_read_performance");
-
-	if (!pr || (off != 0))
-		goto end;
-
-	if (!pr->flags.performance) {
-		p += sprintf(p, "<not supported>\n");
-		goto end;
-	}
-
-	p += sprintf(p, "state count:             %d\n",
-		pr->performance.state_count);
-
-	p += sprintf(p, "active state:            P%d\n",
-		pr->performance.state);
-
-	p += sprintf(p, "states:\n");
-
-	for (i=0; i<pr->performance.state_count; i++)
-		p += sprintf(p, "   %cP%d:                  %d Mhz, %d mW, %d uS\n",
-			(i == pr->performance.state?'*':' '), i,
-			(u32) pr->performance.states[i].core_frequency,
-			(u32) pr->performance.states[i].power,
-			(u32) pr->performance.states[i].transition_latency);
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-
-	return_VALUE(len);
-}
-
-
-static int
-acpi_processor_write_performance (
-        struct file		*file,
-        const char		*buffer,
-        unsigned long		count,
-        void			*data)
-{
-	int			result = 0;
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			state_string[12] = {'\0'};
-
-	ACPI_FUNCTION_TRACE("acpi_processor_write_performance");
-
-	if (!pr || (count > sizeof(state_string) - 1))
-		return_VALUE(-EINVAL);
-	
-	if (copy_from_user(state_string, buffer, count))
-		return_VALUE(-EFAULT);
-	
-	state_string[count] = '\0';
-
-	result = acpi_processor_set_performance(pr, 
-		simple_strtoul(state_string, NULL, 0));
-	if (0 != result)
-		return_VALUE(result);
-
-	return_VALUE(count);
-}
-
-
-static int
-acpi_processor_read_throttling (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*data)
-{
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			*p = page;
-	int			len = 0;
-	int			i = 0;
-	int                     result = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_read_throttling");
-
-	if (!pr || (off != 0))
-		goto end;
-
-	if (!(pr->throttling.state_count > 0)) {
-		p += sprintf(p, "<not supported>\n");
-		goto end;
-	}
-
-	result = acpi_processor_get_throttling(pr);
-
-	if (result) {
-		p += sprintf(p, "Could not determine current throttling state.\n");
-		goto end;
-	}
-
-	p += sprintf(p, "state count:             %d\n",
-		pr->throttling.state_count);
-
-	p += sprintf(p, "active state:            T%d\n",
-		pr->throttling.state);
-
-	p += sprintf(p, "states:\n");
-
-	for (i=0; i<pr->throttling.state_count; i++)
-		p += sprintf(p, "   %cT%d:                  %02d%%\n",
-			(i == pr->throttling.state?'*':' '), i,
-			(pr->throttling.states[i].performance?pr->throttling.states[i].performance/10:0));
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-
-	return_VALUE(len);
-}
-
-
-static int
-acpi_processor_write_throttling (
-        struct file		*file,
-        const char		*buffer,
-        unsigned long		count,
-        void			*data)
-{
-	int			result = 0;
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			state_string[12] = {'\0'};
-
-	ACPI_FUNCTION_TRACE("acpi_processor_write_throttling");
-
-	if (!pr || (count > sizeof(state_string) - 1))
-		return_VALUE(-EINVAL);
-	
-	if (copy_from_user(state_string, buffer, count))
-		return_VALUE(-EFAULT);
-	
-	state_string[count] = '\0';
-	
-	result = acpi_processor_set_throttling(pr, 
-		simple_strtoul(state_string, NULL, 0));
-	if (0 != result)
-		return_VALUE(result);
-
-	return_VALUE(count);
-}
-
-
-static int
-acpi_processor_read_limit (
-	char			*page,
-	char			**start,
-	off_t			off,
-	int 			count,
-	int 			*eof,
-	void			*data)
-{
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			*p = page;
-	int			len = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_read_limit");
-
-	if (!pr || (off != 0))
-		goto end;
-
-	if (!pr->flags.limit) {
-		p += sprintf(p, "<not supported>\n");
-		goto end;
-	}
-
-	p += sprintf(p, "active limit:            P%d:T%d\n",
-		pr->limit.state.px, pr->limit.state.tx);
-
-	p += sprintf(p, "platform limit:          P%d:T0\n",
-		pr->flags.performance?pr->performance.platform_limit:0);
-
-	p += sprintf(p, "user limit:              P%d:T%d\n",
-		pr->limit.user.px, pr->limit.user.tx);
-
-	p += sprintf(p, "thermal limit:           P%d:T%d\n",
-		pr->limit.thermal.px, pr->limit.thermal.tx);
-
-end:
-	len = (p - page);
-	if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len>count) len = count;
-	if (len<0) len = 0;
-
-	return_VALUE(len);
-}
-
-
-static int
-acpi_processor_write_limit (
-        struct file		*file,
-        const char		*buffer,
-        unsigned long		count,
-        void			*data)
-{
-	int			result = 0;
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	char			limit_string[25] = {'\0'};
-	int			px = 0;
-	int			tx = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_write_limit");
-
-	if (!pr || (count > sizeof(limit_string) - 1)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument\n"));
-		return_VALUE(-EINVAL);
-	}
-	
-	if (copy_from_user(limit_string, buffer, count)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data\n"));
-		return_VALUE(-EFAULT);
-	}
-	
-	limit_string[count] = '\0';
-
-	if (sscanf(limit_string, "%d:%d", &px, &tx) != 2) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid data format\n"));
-		return_VALUE(-EINVAL);
-	}
-
-	if (pr->flags.performance) {
-		if ((px < pr->performance.platform_limit) 
-			|| (px > (pr->performance.state_count - 1))) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid px\n"));
-			return_VALUE(-EINVAL);
-		}
-		pr->limit.user.px = px;
-	}
-
-	if (pr->flags.throttling) {
-		if ((tx < 0) || (tx > (pr->throttling.state_count - 1))) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid tx\n"));
-			return_VALUE(-EINVAL);
-		}
-		pr->limit.user.tx = tx;
-	}
-
-	result = acpi_processor_apply_limit(pr);
-
-	return_VALUE(count);
-}
-
-
-static int
-acpi_processor_add_fs (
-	struct acpi_device	*device)
-{
-	struct proc_dir_entry	*entry = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_add_fs");
-
-	if (!acpi_processor_dir) {
-		acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, 
-			acpi_root_dir);
-		if (!acpi_processor_dir)
-			return_VALUE(-ENODEV);
-	}
-
-	if (!acpi_device_dir(device)) {
-		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
-			acpi_processor_dir);
-		if (!acpi_device_dir(device))
-			return_VALUE(-ENODEV);
-	}
-
-	/* 'info' [R] */
-	entry = create_proc_entry(ACPI_PROCESSOR_FILE_INFO,
-		S_IRUGO, acpi_device_dir(device));
-	if (!entry)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unable to create '%s' fs entry\n",
-			ACPI_PROCESSOR_FILE_INFO));
-	else {
-		entry->read_proc = acpi_processor_read_info;
-		entry->data = acpi_driver_data(device);
-	}
-
-	/* 'power' [R] */
-	entry = create_proc_entry(ACPI_PROCESSOR_FILE_POWER,
-		S_IRUGO, acpi_device_dir(device));
-	if (!entry)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unable to create '%s' fs entry\n",
-			ACPI_PROCESSOR_FILE_POWER));
-	else {
-		entry->read_proc = acpi_processor_read_power;
-		entry->data = acpi_driver_data(device);
-	}
-
-	/* 'performance' [R/W] */
-	entry = create_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE,
-		S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
-	if (!entry)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unable to create '%s' fs entry\n",
-			ACPI_PROCESSOR_FILE_PERFORMANCE));
-	else {
-		entry->read_proc = acpi_processor_read_performance;
-		entry->write_proc = acpi_processor_write_performance;
-		entry->data = acpi_driver_data(device);
-	}
-
-	/* 'throttling' [R/W] */
-	entry = create_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
-		S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
-	if (!entry)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unable to create '%s' fs entry\n",
-			ACPI_PROCESSOR_FILE_THROTTLING));
-	else {
-		entry->read_proc = acpi_processor_read_throttling;
-		entry->write_proc = acpi_processor_write_throttling;
-		entry->data = acpi_driver_data(device);
-	}
-
-	/* 'limit' [R/W] */
-	entry = create_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
-		S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
-	if (!entry)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Unable to create '%s' fs entry\n",
-			ACPI_PROCESSOR_FILE_LIMIT));
-	else {
-		entry->read_proc = acpi_processor_read_limit;
-		entry->write_proc = acpi_processor_write_limit;
-		entry->data = acpi_driver_data(device);
-	}
-
-	return_VALUE(0);
-}
-
-
-static int
-acpi_processor_remove_fs (
-	struct acpi_device	*device)
-{
-	ACPI_FUNCTION_TRACE("acpi_processor_remove_fs");
-
-	if (!acpi_processor_dir)
-		return_VALUE(-ENODEV);
-
-	if (acpi_device_dir(device))
-		remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
-
-	return_VALUE(0);
-}
-
-
-/* --------------------------------------------------------------------------
-                                 Driver Interface
-   -------------------------------------------------------------------------- */
-
-static int
-acpi_processor_get_info (
-	struct acpi_processor	*pr)
-{
-	acpi_status		status = 0;
-	acpi_object		object = {0};
-	acpi_buffer		buffer = {sizeof(acpi_object), &object};
-	static int		cpu_count = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_get_info");
-
-	if (!pr)
-		return_VALUE(-EINVAL);
-
-#ifdef CONFIG_SMP
-	if (smp_num_cpus > 1)
-		errata.smp = smp_num_cpus;
-#endif
-
-	acpi_processor_errata(pr);
-
-	/*
-	 * Check to see if we have bus mastering arbitration control.  This
-	 * is required for proper C3 usage (to maintain cache coherency).
-	 */
-	if (acpi_fadt.V1_pm2_cnt_blk && acpi_fadt.pm2_cnt_len) {
-		pr->flags.bm_control = 1;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			"Bus mastering arbitration control present\n"));
-	}
-	else
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			"No bus mastering arbitration control\n"));
-
-	/*
-	 * Evalute the processor object.  Note that it is common on SMP to
-	 * have the first (boot) processor with a valid PBLK address while
-	 * all others have a NULL address.
-	 */
-	status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-			"Error evaluating processor object\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	/*
-	 * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
-	 *	>>> 'acpi_get_processor_id(acpi_id, &id)' in arch/xxx/acpi.c
-	 */
-	pr->id = cpu_count++;
-	pr->acpi_id = object.processor.proc_id;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id, 
-		pr->acpi_id));
-
-	if (!object.processor.pblk_address)
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n"));
-	else if (object.processor.pblk_length < 6)
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid PBLK length [%d]\n",
-			object.processor.pblk_length));
-	else {
-		pr->throttling.address = object.processor.pblk_address;
-		pr->throttling.duty_offset = acpi_fadt.duty_offset;
-		pr->throttling.duty_width = acpi_fadt.duty_width;
-		pr->power.states[ACPI_STATE_C2].address =
-			object.processor.pblk_address + 4;
-		pr->power.states[ACPI_STATE_C3].address =
-			object.processor.pblk_address + 5;
-	}
-
-	acpi_processor_get_power_info(pr);
-	acpi_processor_get_performance_info(pr);
-	acpi_processor_get_throttling_info(pr);
-	acpi_processor_get_limit_info(pr);
-
-	return_VALUE(0);
-}
-
-
-static void
-acpi_processor_notify (
-	acpi_handle		handle,
-	u32			event,
-	void			*data)
-{
-	int			result = 0;
-	struct acpi_processor	*pr = (struct acpi_processor *) data;
-	struct acpi_device	*device = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_notify");
-
-	if (!pr)
-		return_VOID;
-
-	if (0 != acpi_bus_get_device(pr->handle, &device))
-		return_VOID;
-
-	switch (event) {
-	case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
-		result = acpi_processor_get_platform_limit(pr);
-		if (0 == result)
-			acpi_processor_apply_limit(pr);
-
-		acpi_bus_generate_event(device, event, 
-			pr->performance.platform_limit);
-		break;
-	case ACPI_PROCESSOR_NOTIFY_POWER:
-		/* TBD */
-		acpi_bus_generate_event(device, event, 0);
-		break;
-	default:
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			"Unsupported event [0x%x]\n", event));
-		break;
-	}
-
-	return_VOID;
-}
-
-
-static int
-acpi_processor_add (
-	struct acpi_device	*device)
-{
-	int			result = 0;
-	acpi_status		status = AE_OK;
-	struct acpi_processor	*pr = NULL;
-	u32			i = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_add");
-
-	if (!device)
-		return_VALUE(-EINVAL);
-
-	pr = kmalloc(sizeof(struct acpi_processor), GFP_KERNEL);
-	if (!pr)
-		return_VALUE(-ENOMEM);
-	memset(pr, 0, sizeof(struct acpi_processor));
-
-	pr->handle = device->handle;
-	sprintf(acpi_device_name(device), "%s", ACPI_PROCESSOR_DEVICE_NAME);
-	sprintf(acpi_device_class(device), "%s", ACPI_PROCESSOR_CLASS);
-	acpi_driver_data(device) = pr;
-
-	result = acpi_processor_get_info(pr);
-	if (0 != result)
-		goto end;
-
-	result = acpi_processor_add_fs(device);
-	if (0 != result)
-		goto end;
-
-	status = acpi_install_notify_handler(pr->handle, ACPI_DEVICE_NOTIFY, 
-		acpi_processor_notify, pr);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
-			"Error installing notify handler\n"));
-		result = -ENODEV;
-		goto end;
-	}
-
-	processors[pr->id] = pr;
-
-	/*
-	 * Install the idle handler if processor power management is supported.
-	 * Note that the default idle handler (default_idle) will be used on 
-	 * platforms that only support C1.
-	 */
-	if ((pr->id == 0) && (pr->flags.power)) {
-		pm_idle_save = pm_idle;
-		pm_idle = acpi_processor_idle;
-	}
-	
-	printk(KERN_INFO PREFIX "%s [%s] (supports",
-		acpi_device_name(device), acpi_device_bid(device));
-	for (i=1; i<ACPI_C_STATE_COUNT; i++)
-		if (pr->power.states[i].valid)
-			printk(" C%d", i);
-	if (pr->flags.performance)
-		printk(", %d performance states", pr->performance.state_count);
-	if (pr->flags.throttling)
-		printk(", %d throttling states", pr->throttling.state_count);
-	printk(")\n");
-
-end:
-	if (0 != result) {
-		acpi_processor_remove_fs(device);
-		kfree(pr);
-	}
-
-	return_VALUE(result);
-}
-
-
-static int
-acpi_processor_remove (
-	struct acpi_device	*device,
-	int			type)
-{
-	acpi_status		status = AE_OK;
-	struct acpi_processor	*pr = NULL;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_remove");
-
-	if (!device || !acpi_driver_data(device))
-		return_VALUE(-EINVAL);
-
-	pr = (struct acpi_processor *) acpi_driver_data(device);
-
-	/* Unregister the idle handler when processor #0 is removed. */
-	if (pr->id == 0)
-		pm_idle = pm_idle_save;
-
-	status = acpi_remove_notify_handler(pr->handle, ACPI_DEVICE_NOTIFY, 
-		acpi_processor_notify);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
-			"Error removing notify handler\n"));
-		return_VALUE(-ENODEV);
-	}
-
-	acpi_processor_remove_fs(device);
-
-	processors[pr->id] = NULL;
-
-	kfree(pr);
-
-	return_VALUE(0);
-}
-
-
-static int __init
-acpi_processor_init (void)
-{
-	int			result = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_init");
-
-	memset(&processors, 0, sizeof(processors));
-	memset(&errata, 0, sizeof(errata));
-
-	result = acpi_bus_register_driver(&acpi_processor_driver);
-	if (0 > result)
-		return_VALUE(-ENODEV);
-
-	return_VALUE(0);
-}
-
-
-static void __exit
-acpi_processor_exit (void)
-{
-	int			result = 0;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_exit");
-
-	result = acpi_bus_unregister_driver(&acpi_processor_driver);
-	if (0 == result)
-		remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-
-	return_VOID;
-}
-
-
-module_init(acpi_processor_init);
-module_exit(acpi_processor_exit);